Turner. Profession Turner (4th category) in the Unified Tariff Qualification Guide Tariff Qualification Guide turner

23.05.2020

Characteristics of works. Turning and finishing of complex parts and tools with a large number of transitions in 6 - 7 grades, requiring rearrangements and combined fastening using various fixtures and precise alignment in several planes. Turning of external and internal shaped surfaces and surfaces associated with curved cylindrical surfaces, with hard-to-reach places for processing and measurements. Turning of long shafts and screws using several steady rests. Cutting and knurling of multi-start threads of various profiles and pitches. Final cutting of worms according to 8 - 9 degrees of accuracy. Performing operations for finishing a tool that has several mating surfaces. Turning complex large-sized parts and assemblies on universal equipment. Turning of new rolls and regrinding of worn-out rolls with calibration of a complex profile, including the performance of the specified work on the processing of parts and tools from difficult-to-machine high-alloy and heat-resistant materials using the combined plasma-machining method.

Must know: design features and rules for checking the accuracy of lathes of various designs, universal and special devices; specifications and features of operation of the plasma heating unit; methods of installation and alignment of parts; geometry, heat treatment rules, sharpening and finishing of various cutting tool; fundamentals of the theory of cutting metals within the scope of the work performed; basic principles of calibration of complex profiles; rules for setting up and regulating control and measuring instruments and devices; rules for determining the cutting mode according to the reference book and the passport of the machine.

Work examples

1. Rudder stocks of medium and large ships - final turning.

2. Cable drums with a diameter of more than 500 mm - cutting of streams, complete turning.

3. Bolts, nuts, studs over M80 - final turning.

4. Bushings of spools and summing spools steam turbines over 500 mm long - complete turning.

5. Rolls of roughing stands of section mills and intermediate stands with closed calibers - complete turning.

6. Rolls of swaging roughing and semi-finishing stands when rolling rails, beams, channels, circles, corners, tractor shoes on rail and beam mills - complete turning.

7. Rolls of polishing stands for spring strip rolling - complete turning.

8. Smooth and stepped shafts over 5000 mm long - turning with a grinding allowance without and with the use of plasma heating.

9. Propeller shafts (with a ratio of length to diameter up to 30) - complete turning.

10. Crankshafts with six or more connecting rod journals - final turning of the connecting rod journals, trimming the cheeks and backing.

11. Distribution shafts for diesel engines with a length of over 1000 to 6000 mm - final processing.

12. Ship thrust shafts - final processing.

13. Shafts - gears of gear stands of rolling mills with a diameter of more than 500 mm, a length of more than 2000 mm - complete turning.

14. Shafts and axles over 2000 mm long - deep hole drilling and full turning.

15. Lead screws with thread length over 2000 to 7000 mm - complete turning.

16. Caliper screws over 15000 mm long - complete turning.

17. Screws and nuts with multiple trapezoidal threads - turning and threading.

18. Detachable inserts - complete turning.

19. Cylinder bushings for marine diesel engines with a diameter of more than 600 mm - final processing.

20. Threaded combs, threaded gauges, Morse taper gauges - finishing after grinding.

21. Parts of oil-steam pumps, chemical pumps and medium-sized installations made of special non-metallic materials, adjusting units, rotor wheel drive gearbox - complete turning.

22. Disks of the cap device, evaporator carousels, vacuum caps up to 500 mm in size - final processing.

23. Water and steam injectors - complete turning.

24. Taper gauges (plugs, bushings) for propeller shafts - fine boring of the cone according to the gauge with finishing.

25. Gauges (plugs, rings) with conical threads, conical (plugs, bushings) with a diameter of more than 100 mm - fine-tuning, fine-tuning of the thread.

26. Complex high-pressure valves with a large number of transitions, with alignment and cleanliness of machining according to class 10 - complete turning.

27. Columns of hydraulic presses up to 15000 mm long - complete turning.

28. Cases of DUIM products - final processing.

29. Cases of complex high-pressure valves with a large number of transitions with alignment up to 0.05 mm - final processing.

30. Cases - processing according to the template of the outer spheres with polishing up to class 8 of cleanliness and boring according to the template of the inner sphere.

31. Cases with a large number of internal and external transitions - processing according to H7.

32. Gear housings - complete turning.

33. Cases of hermetic high-pressure connectors are complex - complete turning.

34. Backstage of forging and pressing equipment - complete turning.

35. Matrices, punches for forming, punching, drawing dies; forging dies and molds of a complex profile with polishing to the size of the matrix for molds - boring of spherical sockets according to a template.

36. Threaded laps with triangular, rectangular and trapezoidal threads - complete turning.

37. Complex fixtures - boring on the machine support.

38. Rotors of complex centrifuges - complete processing.

39. Whole-forged steam turbine rotors - pre-treatment.

40. Valve seats - processing of radius surfaces according to the template.

41. Glasses for hermetic connectors complex - full turning.

42. Stern tubes - finishing.

43. Worm cutters, modular, angular and two-angle asymmetric cutters with a diameter of more than 200 mm - final threading.

44. Compressor cylinders - complete turning.

45. Cylinders of hydraulic presses - boring holes.

46. Multi-start worms - final threading.

47. Connecting rods - complete turning.

48. Spindles of lathes over 1000 mm long - complete turning.

49. Cylindrical gears, smooth pulleys and for V-belt transmissions with a diameter of more than 1000 mm, bevel and worm gears with a diameter of more than 600 mm - complete turning.

50. Cylindrical gears up to 2000 mm in diameter, smooth pulleys - complete turning with plasma heating.

51. Adjustable pitch propeller shafts up to 10,000 mm long - finishing.

2nd category

Characteristics of works. Turning parts according to 12-14 qualifications on universal lathes using cutting tools and universal fixtures and according to 8-11 qualifications on specialized machines, adjusted for processing certain simple and medium complexity parts or performing individual operations. Cutting external and internal triangular and rectangular threads with a tap or die. Management of machines (center-turning) with a center height of 650-2000 mm, assistance in installing and removing parts, during measurements under the guidance of a turner of a higher qualification. Chip cleaning.

Must know: device and principle of operation of the same type of lathes; name, purpose and conditions for the use of the most common universal devices; arrangement of control and measuring instruments; purpose and rules for the use of cutting tools; angles, rules for sharpening and installing cutters and drills; system of admissions and landings; quality and roughness parameters; purpose and properties of cooling and lubricating fluids.

Work examples

Cylinders and fittings - turning.
Bolts and nuts - threading with a die and a tap.
Swing bolts, holders - complete turning.
Shafts up to 1500 mm long (length to diameter ratio up to 12) - peeling.
Screws with a thread diameter up to 24 mm - turning with thread cutting with a die and a tap.
Collars and klupps - complete turning.
Sleeves are smooth and with a shoulder with a diameter and length up to 100 mm - turning.
Details such as bushings, tracks made of non-metallic materials - turning according to H12 - H14.
Discs, washers with a diameter of up to 200 mm - complete turning.
Plugs rubber-metal with a diameter up to 200 mm - turning (assembly).
Blanks of needle-platinum products - cut to length.
Workpieces - cutting and centering.
Products paper cast - turning.
External and internal socket wrenches - complete turning.
Rings up to 200 mm in diameter - complete turning.
Covers simple with a diameter up to 200 mm - full turning.
Sprues of pressed parts - cut.
Taps, reamers, drills - cutting ends and turning necks for welding.
Transitional tips of a simple form - complete turning.
Samples of T-shaped strip-bulb profile N 9-14 - complete turning.
Hole depth up to 20 drill diameters - drilling.
Welds, welds, welds with a diameter of up to 200 mm - complete turning.
Plugs, studs - complete turning.
Glasses, half-glasses with thread diameter up to 24 mm, length up to 200 mm - complete turning.
Pipes and branch pipes with a diameter of up to 200 mm - cutting the end, chamfering (processing without a steady rest).
Flanges, flywheels, smooth pulleys and for V-belt drives, cylindrical gears up to 200 mm in diameter - turning.
Futorki, fittings, squares, tees, nipples with a diameter of up to 50 mm - complete turning.
Air brake hoses and sleeves - stripping of the upper layer of rubber.
Cylindrical pins - turning with grinding allowance.

3rd category

Characteristics of works. Processing on universal lathes of parts in 8-11 grades and complex parts in 12-14 grades. Processing of parts according to 7-10 qualifications on specialized machines, adjusted to process certain parts or perform individual operations. Turning thin-walled parts with a wall thickness of up to 1 mm and a length of up to 200 mm. Performance of turning works by the method of combined plasma-machining under the guidance of a turner of higher qualification. Cutting external and internal single-start triangular, rectangular and trapezoidal threads with a cutter. Thread cutting with vortex heads. Management of center turning machines with a center height of 2000 mm or more, a distance between centers of 10000 mm or more. Management of center turning machines with a center height of up to 800 mm, with more than three calipers, under the guidance of a more highly qualified turner. Performing the necessary calculations to obtain the given conical surfaces. Management of lifting and transport equipment from the floor. Slinging and lashing of loads for lifting, moving, installing and warehousing. Turning workpieces from mica and mikalex.

Must know: device, rules for adjusting and checking for accuracy of universal lathes; rules for managing large-sized machines serviced together with a turner of higher qualification; device and rules for the use of universal and special devices; device and conditions for the use of the plasma torch; purpose and rules for the use of control and measuring instruments and devices; geometry and rules for sharpening a cutting tool made of tool steels or with a hard alloy or ceramic plate; system of admissions and landings; quality and roughness parameters; basic properties of processed materials.

Work examples

Brake shoes - turning after hardfacing.
Fitted smooth and conical bolts - full turning H9-H11 (3-4 accuracy class).
Bolts, forks, screws, couplings, lanyard eyes, plugs, studs, gougons, fittings with a thread diameter of more than 24 to 100 mm - complete turning with threading.
Shafts, axles and other parts - turning with a grinding allowance.
Threaded welds - final processing.
Smooth and stepped rollers up to 1500 mm long - complete turning.
Shafts longer than 1500 mm (length to diameter ratio over 12) - roughing.
Shafts and axles with up to five finishing journals - complete turning.
Crankshafts for presses, compressors and engines - preliminary turning of the necks, cutting the ends of the necks and turning the cone.
Shafts and axles up to 1000 mm long - deep hole drilling and full turning.
Caliper screws with cutting length up to 500 mm - full turning.
Bushings - turning internal longitudinal and helical lubrication grooves.
Sleeves are smooth and with a shoulder with a diameter and length over 100 mm - full turning.
Reducer bushings with Morse taper - complete turning.
Nuts up to M22, studs up to M20, flanges up to D100 mm - complete turning.
Nuts and locknuts with thread diameter up to 100 mm - complete turning.
Nuts of increased accuracy with a thread diameter of M24 and above - turning for a broach tap.
Caliper nuts with cutting length up to 50 mm - cutting, drilling, boring and threading.
Details such as bushings, rings made of non-metallic materials - turning.
Discs, washers with a diameter of more than 200 mm - complete turning.
Diffusers, adapters, conical tips, bottoms with a diameter of more than 200 mm - full turning.
Bottoms - final turning with flats and chamfers.
Valve blanks for oxygen devices - turning.
Countersinks and milling cutters with insert knives - complete turning.
Plugs for connectors - full turning.
Gauges (plugs, rings) for trapezoidal and special threads - turning with grinding allowance.
Elbows, quadruples, crosses up to 280 mm in diameter - complete turning.
Wheels and bushings of electric clocks and time instruments - boring holes.
Rings with a diameter over 200 mm - complete turning.
Gasket rings with a diameter of 150 mm and above and a wall thickness of up to 8 mm - turning according to the 3rd accuracy class.
Intermediate spherical rings - turning according to the template, boring.
Lubricating, fitting and clamping rings - final processing.
Valve bodies - turning, boring with threading.
Medium-difficulty valve bodies and covers - complete turning.
High pressure valve shoe bodies - pre-treatment.
Cases of tanks and reservoirs - turning for welding.
Covers of cuffs from two halves - final processing.
Covers, rings with labyrinth grooves up to 500 mm in diameter - complete turning.
Flywheels - complete turning with rim turning along the radius.
Non-returners - full turning.
axes wheelsets rolling stock - turning with a grinding allowance.
Drill chucks - complete turning.
Branch pipes, tees - complete turning.
Interchangeable connector boards - complete turning.
Die - turning with threading with a tap.
Pistons - cutting the bottom, turning the outer surface, boring the chamber.
Wire springs - winding.
Punching and piercing punches - turning for grinding.
Tool holders, gear racks, taper hole gauge handles - complete turning.
Handles and handles figured - full turning.
Levers, brackets, earrings, rods and connecting rods - final turning.
Oil seals, gland nuts, bulkheads with thread up to M100, valve discs - complete turning.
Drills, taps, reamers, bottle necks - turning.
Rods turning with thread cutting.
Flanges, flywheels with a diameter of over 200 mm - complete turning.
Cutters: angular one-sided disk, slotted, splined, dumbbell, shaped for wood, keyway, end cutters Karaseva - turning with an allowance for grinding.
Futorki, tees, nipples, squares with a diameter of more than 50 mm - complete turning.
Collets clamping and giving to machines - turning with an allowance for grinding.
Turning centers - turning for grinding.
Washers and gaskets for running - turning according to sketches.
62 Cylindrical gears, spur pulleys and for V-belt transmissions with a diameter of more than 200 to 500 mm, bevel and worm gears with a diameter of up to 300 mm - complete turning.
Rods for steam hammers - preliminary turning.
Pins and sockets for connectors - complete turning.
Taper pins - final turning.

4th category

Characteristics of works. Turning and approaching complex parts according to 7-10 qualifications on universal lathes, as well as using the method of combined plasma-machining. Turning the plasma unit on and off. Turning long shafts and screws using stationary and steady rests, deep drilling and boring holes with gun drills and other special tools. Turning thin-walled parts with a wall thickness of up to 1 mm and a length of more than 200 mm. Cutting external and internal two-start triangular, rectangular, semicircular, sawtooth and trapezoidal threads. Installation of parts in various fixtures and on a square with precise alignment in horizontal and vertical planes. Adjustment of the machine tool, plasma installation and plasma torch for combined operation. Turning parts that require precise dimensional accuracy between the centers of eccentric holes or turning points. Turning parts from graphite products for the production of hard alloys. Turning of new and regrinding of used rolls with calibration of simple and medium complexity profiles. Peeling and finishing of roll necks. Management of center-turning machines with a center height of more than 800 mm, with more than three calipers.

Must know: device and kinematic diagrams lathes of various types, rules for checking them for accuracy; design features and rules for the use of universal and special devices; arrangement of control and measuring instruments and instruments; geometry, rules of heat treatment, sharpening and finishing of cutting tools; basic principles for calibrating profiles of simple and medium complexity; rules for determining cutting conditions according to reference books and machine data sheet; system of admissions and landings; quality and roughness parameters; fundamentals of electrical engineering and rules for ensuring the safe operation of a plasma installation, exhaust ventilation and cooling system; circuit diagram Plasma heating installations and methods for setting up a plasma torch.

Work examples

Headstock rear - the final boring of the hole on the machine for the quill.
Cylinders - complete turning.
Bandages of universal stands - cutting.
Cable drums with a diameter of up to 500 mm - cutting of streams, complete turning.
Bolts and nuts over M48 - final processing.
Spool boxes and summing spools of steam turbines up to 500 mm long - complete turning.
Smooth and stepped rollers over 1500 mm long - complete turning.
Multi-stage hollow rollers - turning, drilling and boring.
Smooth and stepped shafts up to 5000 mm long - turning with grinding allowance.
Shafts and axles with more than five finishing journals - complete turning.
Rolls of pipe-rolling, pipe-straightening and pipe-electric welding mills - complete turning.
Shafts and axles over 1000 to 2000 mm long - deep hole drilling and complete turning.
Crankshafts for presses and compressors - finishing and polishing of necks.
Steam turbine shafts - pre-treatment.
Distribution shafts for diesel engines up to 1000 mm long - fine turning and cutting of cams.
Gear shafts of gear stands of rolling mills with a diameter of up to 500 mm, a length of up to 2000 mm - complete turning.
Screws for micrometers - threading.
Caliper screws over 500 to 1500 mm long - full turning.
Lead screws up to 2000 mm long - full turning.
Liners, clips and ball heads with a diameter of up to 70 mm - full turning.
Bushings - final processing.
Bushings and pistons - final processing of internal grooves according to H9 (3rd class of accuracy).
Cylinder bushings for marine diesel engines with a diameter of up to 600 mm - final processing.
Nuts and locknuts with a thread diameter over 100 mm - complete turning.
Special threaded nuts - complete turning after heat treatment.
Caliper nuts - cutting, drilling, boring and threading.
Tapered parts - full thread turning.
Parts with multiple parallel holes with exact center distance - fine boring holes.
Shaft-like parts made of hard-to-cut steels and alloys - turning with plasma heating.
Details of complex configuration with several surfaces - final processing.
Details of chemical equipment and chemical equipment made of fired porcelain and dunite ceramics - turning.
Discs for universal chucks for metalworking machines - complete turning with helix cutting on the butt.
Gauges for taper threads (plugs and rings) - threading for fine-tuning.
Calibers on the semi-finishing stand - preliminary cutting.
Gauges (plugs, rings) for triangular threads and smooth - full turning.
Piston rings - complete turning with grinding allowance.
Threaded rings - complete turning.
Cases: fittings with a conditional transition up to 32 mm and a body length from the sealing field to the flange of 150 mm and above: high-pressure valve columns; clapping complex with intersecting axes - final processing.
Valve bodies, bearings, axle boxes, rollers - final processing.
Body and wedges of gate valves with conditional transition up to 200 mm - full turning.
Housings and covers for hydraulic machines, housings for drilling and grinding pneumatic machines - final processing.
Bodies of cranes - boring of conical openings in an emphasis.
Dual filter housings - hole making
Cases of glasses and seals with a diameter of more than 150 mm - final processing with a large number of transitions and landings.
Centrifugal pump casings - complete turning.
Covers, rings with labyrinth grooves with a diameter of more than 500 mm - full turning.
Cams for universal chucks - threading under the disk.
Matrices, punches, punch holders for forming drawing and punching dies, molds - complete turning.
Taps with single-start trapezoidal and double-start triangular, rectangular, semicircular threads - full turning.
Couplings for switching on powerful diesel engines - cutting intersecting grooves.
Friction clutches, cylinders of complex configuration with internal blind grooves - complete turning.
Cam chucks and faceplates - complete turning.
Tailstock quills - full turning.
Cylindrical outer and inner surfaces - finishing and lapping.
Flanged bearing shields - complete turning.
Thrust bearing pads - final processing.
Aluminum pistons - complete turning.
Molds of medium complexity - complete turning.
Molds of medium complexity - complete turning with polishing.
Pipe runs with trapezoidal thread - threading.
Round broaches - complete turning.
Threaded rings - threading for fine-tuning.
Rotors and armatures of electric motors - complete turning.
Sliding bearings and hubs from two halves with a diameter of up to 300 mm - final turning.
Saddles and valves of piston pumps - full turning.
Ingots of vacuum-arc and electroslag remelting - turning with the use of plasma heating.
Controllable pitch propeller hubs - finishing the sphere.
Clapper plates with DN-300 and more with several seat sizes with threaded surfaces M100 and more - complete turning.
Drill pipes, casing pipes, tubing pipes, drill rods, locks, subs and calibers for them - production and cutting of conical threads.
Carbide filters - fine-tuning according to H7-H9.
Thread cutters, combs for thread-cutting heads - production.
Worm cutters, modular, angular and two-angle asymmetric cutters with a diameter of up to 200 mm - complete turning.
Collets clamping and feeding to machines - complete turning without grinding.
Necks and barrels of rolls of all mills - peeling and finishing.
Cylindrical gears, smooth pulleys and for V-belt transmissions with a diameter of more than 500 to 1000 mm, bevel and worm gears with a diameter of more than 300 to 600 mm - complete turning.
Small-module gears - complete processing according to H7-H9.
Frames, rings with a diameter of up to 600 mm - turning.
Spindles of lathes up to 1000 mm long - complete turning.
Rods of small cones of blast furnaces - turning with threading.

5th category

Characteristics of works. Turning and finishing complex parts and tools with a large number of transitions in 6-7 grades, requiring rearrangements and combined fastening using various fixtures and precise alignment in several planes. Turning of external and internal shaped surfaces and surfaces associated with curved cylindrical surfaces, with hard-to-reach places for processing and measurements. Turning of long shafts and screws using several steady rests. Cutting and knurling of multi-start threads of various profiles and pitches. Final cutting of worms in 8-9 degrees of accuracy. Performing operations for finishing a tool that has several mating surfaces. Turning complex large-sized parts and assemblies on universal equipment. Turning of new rolls and regrinding of worn-out rolls with calibration of a complex profile, including the performance of the specified work on the processing of parts and tools from difficult-to-machine high-alloy and heat-resistant materials using the combined plasma-machining method.

Must know: design features and rules for checking the accuracy of lathes of various designs, universal and special devices; technical characteristics and features of operation of the plasma heating unit; methods of installation and alignment of parts; geometry, heat treatment rules, sharpening and finishing of various cutting tools; fundamentals of the theory of cutting metals within the scope of the work performed; basic principles of calibration of complex profiles; rules for setting up and regulating control and measuring instruments and devices; rules for determining the cutting mode according to the reference book and the passport of the machine.

Work examples

Rudder stocks of medium and large ships - final turning,
Cable drums with a diameter of more than 500 mm - cutting of streams, complete turning.
Bolts, nuts, studs over M80 - final turning.
Spool boxes and summing spools of steam turbines over 500 mm long - complete turning.
Rolls of roughing stands of section mills and intermediate stands with closed calibers - full turning.
Rolls of swaging roughing and semi-finishing stands when rolling rails, beams, channels, circles, corners, tractor shoes on rail and beam mills - complete turning.
Rolls of polishing stands for spring strip rolling - complete turning.
Smooth and stepped shafts over 5000 mm long - turning with a grinding allowance without and with the use of plasma heating.
Propeller shafts (with a ratio of length to diameter up to 30) - complete turning.
Crankshafts with six or more connecting rod journals - final turning of the connecting rod journals, trimming the cheeks and backing.
Distribution shafts for diesel engines with a length of over 1000 to 6000 mm - final processing.
Ship thrust shafts - final processing.
Gear shafts of gear stands of rolling mills with a diameter of more than 500 mm, a length of more than 2000 mm - complete turning.
Shafts and axles over 2000 mm long - deep hole drilling and full turning.
Lead screws with thread length over 2000 to 7000 mm - full turning.
Caliper screws over 15000 mm long - complete turning.
Screws and nuts with multiple trapezoidal threads - turning and threading.
Detachable liners - complete turning.
Cylinder bushings for marine diesel engines with a diameter of more than 600 mm - final processing.
Threaded combs, threaded gauges, Morse taper gauges - finishing after grinding.
Parts of steam-oil pumps, chemical pumps and medium-sized installations made of special non-metallic materials, quotation units, rotor wheel drive gearbox - full turning.
Podcap discs, evaporator carousels, vacuum bells up to 500 mm in size - finishing.
Water and steam injectors - complete turning.
Taper gauges (plugs, bushings) for propeller shafts - fine boring of the cone according to the gauge with finishing.
Gauges (plugs, rings) with conical threads, conical (plugs, bushings) with a diameter of more than 100 mm - fine-tuning, fine-tuning of the thread.
Complicated high-pressure valves with a large number of transitions, with alignment and cleanliness of machining according to class 10 - complete turning.
Columns of hydraulic presses up to 15000 mm long - complete turning.
Cases of DUIM products - final processing.
Complex high-pressure valve bodies with a large number of transitions with concentricity up to 0.05 mm - finishing.
Cases - processing according to the template of the outer spheres with polishing up to the 8th class of cleanliness and boring according to the template of the inner sphere.
Cases with a large number of internal and external transitions - processing according to H7.
Gearcases - complete turning.
Housings for hermetic high pressure connectors are complex - complete turning.
Backstage of forging and pressing equipment - complete turning.
Matrices, punches of forming, punching, drawing dies; forging dies and molds of a complex profile with polishing to the size of the matrix for molds - boring of spherical sockets according to a template.
Threaded laps with triangular, rectangular and trapezoidal threads - complete turning.
Devices are complex - boring on the support of the machine.
Rotors of complex centrifuges - complete processing.
Rotors forged for steam turbines - pre-treatment.
Valve seats - processing of radius surfaces according to the template.
Glasses for hermetic connectors are complex - complete turning.
Stern tubes - finishing.
Worm cutters, modular, angular and two-angle asymmetric cutters with a diameter of more than 200 mm - final threading.
Compressor cylinders - complete turning.
Hydraulic press cylinders - boring holes.
Multi-start worms - final threading.
Connecting rods - full turning.
Spindles of lathes over 1000 mm long - complete turning.
Cylindrical gears, smooth pulleys and for V-belt transmissions with a diameter of more than 1000 mm, bevel and worm gears with a diameter of more than 600 mm - complete turning.
Cylindrical gears up to 2000 mm in diameter, smooth pulleys - full turning with plasma heating.
Adjustable pitch propeller shafts up to 10,000 mm long - finishing.

6th category

Characteristics of works. Turning and finishing on universal lathes of complex experimental and expensive parts and tools in 1-5 grades with a large number of transitions and installations, with hard-to-reach places for processing and measurements, requiring combined mounting and high-precision alignment in various planes when installing. Finishing and polishing according to the 5th grade of a complex special tool of various configurations with several mating surfaces. Cutting multi-start threads of a complex profile of any module and pitch. Final cutting of the worm profile in 6-7 degrees of accuracy. Turning complex large-sized parts, assemblies and thin-walled long parts subject to deformation on universal and unique lathes. Turning of new rolls and regrinding of worn-out rolls with calibration of complex profiles, including the performance of the specified work on the processing of parts and tools from hard-to-machine, high-alloy heat-resistant materials using the combined plasma-machining method.

Must know: design and rules for checking the accuracy of lathes of various types; methods of installation, fastening and alignment of complex parts and methods for determining the technological sequence of processing; device, geometry and rules of heat treatment, sharpening and finishing of all types of cutting tools; ways to achieve the established accuracy and purity of processing; requirements for plasma-mechanical processing, and conditions for the use of special devices in this method; basic principles of calibration of complex profiles; rules for determining the most advantageous cutting conditions according to reference books and the passport of the machine; calculations associated with the implementation of complex turning work.

Work examples

Rolls of blooming, slabbing and finishing stands of rolling and wire mills - complete turning without and with the use of plasma heating.
Sizing mill rolls - complete turning.
Rolls of finishing stands with open passes and pre-finishing stands with closed passes - complete turning.
Rolls of universal stands for rolling of lightweight profiles - complete turning.
Finishing mill rolls for rolling rails and shaped profiles - complete turning
Distribution shafts for diesel engines over 6000 mm long - final processing.
Accelerating shafts - cutting eight-start threads with progressively increasing pitch.
Shafts of steam turbines of high and low pressure - finishing for grinding and threading or grinding of cones on couplings.
Shafts of steam turbines of high and low pressure - finishing for grinding and threading or turning cones on couplings using plasma heating.
Shafts of hydraulic turbines - complete finishing of the shaft and jackets without and with the use of plasma heating.
Propeller shafts (with a ratio of length to diameter over 30) - complete turning.
Screws with radius helix for balls - the final finishing of the helix of two mating parts.
Lead screws with thread length over 7000 mm - complete turning with threading.
Stern tube bushings - boring with a boring bar on a ship.
Magnesium multi-channel heads - basic fine-tuning.
Boring heads with multiple threads - complete turning.
Complicated parts and assemblies for chemical pumps and large-sized installations from special non-metallic materials and acid alloys - complete turning.
Cap discs, evaporator carousels, vacuum bells larger than 500 mm - complete turning.
Threaded gauges with multi-start trapezoidal thread - complete turning.
Columns of hydraulic presses - complete turning.
Caps of complex configuration - complete turning.
Multi-seat molds of complex configuration - complete turning with polishing.
Propeller hubs with a diameter of more than 5000 mm - final processing.
Cylindrical gears with a diameter of over 2000 mm, smooth pulleys - complete turning with plasma heating.
Adjustable pitch propeller shafts over 10,000 mm long - finishing.

7th rank

Characteristics of works. Turning and finishing on spherical lathes of parts with spherical surfaces according to 5-6 qualifications with a large number of transitions and settings, including after heat treatment (hardening). Turning and finishing of especially complex parts of blocks, assemblies, products of chemical, radiochemical, chemical and metallurgical industries, components and structures made of nuclear fissile, explosive and fire hazardous materials in chambers using protective equipment(screens) from exposure to radioactive radiation.

Must know: design and rules for checking the accuracy of spherical lathes; methods of installation, fastening and alignment of complex parts; methods for determining the technological sequence of processing parts; ways to achieve the established accuracy and purity of processing; calculations related to the performance of complex turning works; rules for working with nuclear fissile, explosive and fire hazardous materials; rules of work with the use of protective equipment (screens) from the effects of radioactive radiation.

Work examples

Lodgments of complex design with one or two spherical surfaces - turning.
Technological chucks (deaf and with holes) for processing balls and hemispheres after heat treatment in 5 - 6 grades and roughness Ra 0.15 - 0.1 - turning.
Gauge bowls - final turning after heat treatment with grinding in 5 - 6 grades and roughness Ra 0.2-0.1.
Gauge balls - final turning after heat treatment with finishing and polishing according to 5 - 6 grades and roughness Ra 0.2 - 0.1.

8th rank

Characteristics of works. Turning and finishing on spherical lathes of especially complex and critical parts and assemblies with spherical surfaces in 3-5 grades, with several intersecting planes, curved surfaces and axes for chemical, radiochemical, chemical and metallurgical industries, from nuclear fissile, explosive and fire hazardous materials in chambers with the use of protective equipment (screens) from exposure to radioactive radiation.

Must know: design and rules for checking the accuracy of spherical lathes; methods of installation, fastening and alignment of complex parts and methods for determining the technological sequence of processing; ways to achieve the established accuracy and purity of processing; calculations related to the performance of complex turning works; rules for working with nuclear fissile, explosive and fire hazardous materials; rules of work with the use of protective equipment (screens) from the effects of radioactive radiation.

Work examples

Bowls, caliber balls, spherical - final turning and finishing after heat treatment in 3-5 grades and roughness Ra 0.1 - 0.015.

Job Description:

Turning and approaching complex parts according to 7-10 qualifications on universal lathes, as well as using the method of combined plasma-machining. Turning the plasma unit on and off. Turning long shafts and screws using stationary and steady rests, deep drilling and boring holes with gun drills and other special tools. Turning thin-walled parts with a wall thickness of up to 1 mm and a length of more than 200 mm. Cutting external and internal two-start triangular, rectangular, semicircular, sawtooth and trapezoidal threads. Installation of parts in various fixtures and on a square with precise alignment in horizontal and vertical planes. Adjustment of the machine tool, plasma installation and plasma torch for combined operation. Turning parts that require precise dimensional accuracy between the centers of eccentric holes or turning points. Turning parts from graphite products for the production of hard alloys. Turning of new and regrinding of used rolls with calibration of simple and medium complexity profiles. Peeling and finishing of roll necks. Management of center-turning machines with a center height of more than 800 mm, with more than three calipers.

Must know:

device and kinematic diagrams of lathes of various types, rules for checking them for accuracy, design features and rules for the use of universal and special devices, device for control and measuring tools and devices, geometry, rules for heat treatment, sharpening and finishing of cutting tools, basic principles for calibrating profiles of simple and of medium complexity, the rules for determining cutting conditions according to the manuals and the passport of the machine, the system of tolerances and landings, qualifications and roughness parameters, the basics of electrical engineering and the rules for ensuring the safe operation of a plasma installation, exhaust ventilation and cooling system, a schematic diagram of a plasma heating installation and methods for setting up a plasma torch

Work examples:

1) Headstock back - the final boring of the hole on the machine for the quill; 2) Cylinders - complete turning; 3) Bandages of universal stands - cutting; 4) Cable drums with a diameter of up to 500 mm - cutting streams, complete turning; 5) Bolts and nuts over M48 - final processing; 6) Spool boxes and summing spools of steam turbines up to 500 mm long - complete turning; 7) Smooth and stepped rollers over 1500 mm long - complete turning; 8) Hollow multi-stage rollers - turning, drilling and boring; 9) Rolls of pipe-rolling, pipe-straightening and pipe-electric welding mills - complete turning; 10) Smooth and stepped shafts up to 5000 mm long - turning with a grinding allowance; 11) Shafts and axles with a length of over 1000 to 2000 mm - deep hole drilling and complete turning; 12) Shafts and axles with more than five finishing journals - complete turning; 13) Crankshafts for presses and compressors - finishing and polishing of necks; 14) Steam turbine shafts - pre-treatment; 15) Diesel camshafts up to 1000 mm long - fine turning and cutting of cams; 16) Gear shafts of gear stands of rolling mills with a diameter of up to 500 mm, a length of up to 2000 mm - complete turning; 17) Screws for micrometers - threading; 18) Caliper screws with a length of over 500 to 1500 mm - full turning; 19) Lead screws up to 2000 mm long - complete turning; 20) Liners, clips and ball heads with a diameter of up to 70 mm - complete turning; 21) Detachable liners - complete turning; 22) Bushings and pistons - final processing of internal grooves according to H9 (3rd class of accuracy); 23) Bushings - final processing; 24) Cylinder bushings for marine diesel engines with a diameter of up to 600 mm - final processing; 25) Nuts and locknuts with a thread diameter over 100 mm - complete turning; 26) Special nuts with thread - complete turning after heat treatment; 27) Caliper nuts - cutting, drilling, boring and threading; 28) Shaft-like parts from hard-to-cut steels and alloys - turning with plasma heating; 29) Parts with taper thread - complete turning with threading; 30) Parts of complex configuration with multiple surfaces - finishing; 31) Details with several parallel holes with exact distance between centers - fine boring of holes; 32) Parts of chemical equipment and chemical equipment from fired porcelain and dunite ceramics - turning; 33) Discs for universal chucks for metalworking machines - complete turning with cutting of the spiral along the butt; 34) Gauges for taper threads (plugs and rings) - threading for fine-tuning; 35) Gauges on a semi-finishing stand - preliminary cutting; 36) Gauges (plugs, rings) for triangular threads and smooth - full turning; 37) Piston rings - complete turning with grinding allowance; 38) Threaded rings - complete turning; 39) Cases: fittings with a conditional transition up to 32 mm and a body length from the sealing field to the flange of 150 mm and above: high-pressure valve columns; clapping of complex with intersecting axes - final processing; 40) Cases and wedges of gate valves with a conditional transition up to 200 mm - complete turning; 41) Housings and covers for hydraulic machines, housings for drilling and grinding pneumatic machines - final processing; 42) Valve bodies, bearings, axle boxes, rollers - final processing; 43) Cranes bodies - boring of taper holes point-blank; 44) Double filter housings - hole processing; 45) Cases of cups and glands with a diameter of more than 150 mm - final processing with a large number of transitions and landings; 46) Cases of centrifugal pumps - complete turning; 47) Covers, rings with labyrinth grooves with a diameter of more than 500 mm - complete turning; 48) Cams for universal cartridges - threading under the disk; 49) Matrices, punches, punch holders for forming drawing and punching dies, molds - complete turning; 50) Taps with single-start trapezoidal and double-start triangular, rectangular, semicircular threads - complete turning; 51) Couplings for switching on powerful diesel engines - cutting of intersecting grooves; 52) Friction clutches, cylinders of complex configuration with internal blind grooves - complete turning; 53) Cam chucks and faceplates - complete turning; 54) Quills for tailstocks - complete turning; 55) External and internal cylindrical surfaces - finishing and grinding; 56) Flanged bearing shields - complete turning; 57) Pillows of thrust bearings - final processing; 58) Aluminum pistons - complete turning; 59) Molds of medium complexity - complete turning; 60) Press

Qualification - turner, turner-carousel, turner-borer, turner-revolver.

Description of the profession

In any production, construction, from shipbuilding to watchmaking, metal structures, machine tools, metal parts are used.

In the production of parts and metal structures, many different operations are performed, which depends on the shape and size of the part and the material from which it is made. Turning is one of the types of material processing (metal, plastic, wood ...) by cutting. The turning tool is fixed on the machine while the workpiece rotates. The task of a turner is to manufacture a part or product according to certain drawings, taking into account the optimal technology and manufacturing sequence, material features and technical capabilities of the machine. The turner performs the operations prescribed by the technological documentation, taking into account the dimensions of the part and the necessary tools - cutters, measuring instruments, plans the order of operations, prepares tools and material. After finishing work, he takes measurements: whether the part corresponds to the established dimensions. The profession of a turner belongs to the category of occupations with an average physical load.

The main difference in the work of a turner and a miller is that the turner processes a rotating part with a fixed tool, and the miller processes a rigidly fixed workpiece with a rotating tool. There are several types of lathes: screw-cutting lathes, longitudinal lathes, etc. Due to the variety of lathes, such varieties of the profession of a turner have appeared as a turner-borer, a turner-carousel, a turner-universal

Description of ETKS qualification

Turner - a worker, a specialist in turning - cutting rotating blanks made of wood, metal, plastic, plexiglass, resin, etc.

general characteristics

With the help of a cutting tool (cutter) cuts off layers of metal to obtain the desired details according to the drawings. Lathes can perform only one operation (turret, carousel, boring, etc.) or be universal, i.e., perform all operations. Turner working on universal machine manufactures single parts that require special machining accuracy.

Requirement for individual features

Must have sharp eyesight, accurate linear and volumetric eye, good hand-eye coordination, technical thinking, spatial imagination, attention span, good eyesight and hearing, good memory, technical thinking.

Medical contraindications

The profession is contraindicated for people suffering from diseases of the musculoskeletal system, cardiovascular and nervous systems, respiratory organs (bronchial asthma), as well as reduced vision, diseases of the organs of vision and hearing, increased skin irritability, disorders of the vestibular apparatus, epilepsy.

Professional training requirements

Must know: the design and rules for checking the accuracy of lathes of various designs; methods of installation, fastening, alignment of parts and methods for determining the technological sequence of their processing; device and rules for heat treatment, sharpening and finishing of all types of cutting tools; ways to achieve the established accuracy and purity of processing; rules for determining cutting conditions according to reference books and machine data sheet.

Must be able to: perform work according to drawings, determine cutting conditions, choose the optimal order for processing parts, make calculations related to the performance of particularly complex turning operations.

Related professions

Wide profile machine operator, sharpener, repairman.

The job description of a turner is compiled by the employer to specify the parameters of the employment contract, in particular those devoted to official duties. It is recommended for use by letters of Rostrud and is a document with legal force. The significance of the instruction requires the compilers of a responsible attitude to its creation.

Turner job description sample

1. General Provisions

The turner reports to the foreman.
The turner is hired, as well as dismissed from it, by the head of the company, on the recommendation of the head of the shop.
During the absence of a turner (a business trip, illness, etc.), his functions are transferred to another specialist, determined by the head of the workshop.
An applicant for the position of a turner must meet the following qualification criteria:
- secondary or technical secondary special education;
- 1 year experience as a turner.
The turner must have competencies in the following areas:
- fire and technical safety standards;
- standards for working with technical documentation;
- rules for assessing the achieved labor results;
- a system of parameters used to determine the roughness, accuracy and other criteria of machined parts;
- varieties of control and measuring equipment used when working with parts;
- technologies and equipment used in the field of its activity;
- features in the operation of lathes, their main brands and varieties;
- methods of manufacturing and editing simple and complex parts;
- rules for detecting marriage and defects in details;
- methods of using universal devices on machine tools;
- rules for determining the quality and degree of wear of the devices used;
- rules for preparing lathes for operation, their debugging and calibration;
- stages of checking the serviceability of lathes and tools;
- rules for working with sketches and drawings of parts;
- rules for working with cutters and drills;
- methods for achieving the required quality levels in terms of cleanliness and accuracy of processing;
- the basics of the theory of working with metals, within their competence;
- rules for the use of tools and equipment.
Turner in his work focuses on:
- legislative and normative acts;
- industry standards
- employer documentation;
- information in this manual.

2. Functions

The turner provides the following operations:

Production of the necessary turning works in accordance with the specified criteria.
Compliance with the standards for the operation of machines, tools, inventory items.
Inspection and preparation for operation of lathes.
Interaction with other employees of the workshop on the implementation of turning work.
Tracking the situation with stocks of necessary fixtures, parts, ingredients.
Threading the required level of complexity.
Production of control measurements of the received parts using appropriate equipment.
Processing and fine-tuning of parts with increased complexity.
Application of relevant technical documents.
Maintain established standards of order in your workplace.
Compliance with labor protection rules, regulations fire safety and parameters of labor discipline.
Maintaining the necessary paperwork within its competence.

3. Responsibility

A turner can be held liable on the following grounds:

For failure to perform official functions enshrined in the employment contract and this instruction - within the boundaries specified in labor law and company rules.
For offenses committed at the workplace - in the manner specified in the sections of administrative, criminal, labor law.
Per material damage received by the firm due to its incompetent activities - within the limits specified in the sections of the relevant legislation.

4. Rights

The turner is endowed by the employer with the following rights:

Make suggestions to improve aspects of their work procedures.
Inform the head of the workshop about problematic moments in the work activity.
Demand from the employees of the company the information necessary for the qualitative performance of the assigned duties.
Have access to the criteria by which the employer evaluates the effectiveness of his activities.
Receive from the employer translations of technical documentation necessary for the effective performance of job duties.

5. Working conditions

The turner periodically improves his professional level by passing free additional training on the conditions indicated in the company's documentation.
The turner undergoes a medical examination upon admission to work, and also periodically repeats it in accordance with established rules.
The turner is required to be instructed in labor protection and fire safety standards upon admission to work.
The firm issues working clothes to the turner and provides tools in the manner specified in the internal documentation.

FILES

Features of creating a job description

When writing instructions, employers have greater freedom of action, since the requirements for its preparation are not enshrined in legislation. But to avoid risks, they prefer to use standard samples, modifying them to fit their needs. These samples are created on the basis of the norms of business workflow, the provisions of qualification reference books and professional standards. They have the following structure:

Common parameters.
Job Responsibilities of a Specialist.
His rights at work.
His responsibility.

Employers can add additional sections to these standard sections if they wish to highlight certain aspects more clearly. Here are the most common accessory parts:

Criteria for evaluating the results obtained by the employee.
Features of work.
The order of official relations.

Extended versions of the manual are common in large companies, with a significant number of employees who are involved in a variety of operations.

Attention! Since the instruction is actually an appendix to employment contract, it should not contradict it or go beyond the framework indicated in it.

General section

An introductory section containing a description of the general principles of the employee's activities. It prescribes the procedure for hiring and firing him, to whom he reports and other similar points.

A special role is played by the list of required knowledge and skills that should ensure the effective implementation labor functions listed in the next section.

Attention! For a number of professions, including a turner, suitable professional standards and sections of the Unified Tariff and Qualification Handbook (ETKS) can be used in the preparation of instructions. The professional standard for a turner 40.078 was approved by the Ministry of Labor on March 13, 2017, and its categories are listed in paragraphs 108-112b of the ETKS.

Functions

The contents of the section can be divided into three groups:

Basic responsibilities are the same at different enterprises for specialists of the same profile.
Secondary - may differ depending on the specific area of \u200b\u200bwork and the specifics of the employer.
Typical - those functions that are required for different professions(comply with labor protection standards, safety rules, etc.).

Attention! If the company practices the provision of tools or overalls, then they separately include a paragraph in which they oblige the employee to take care of their operation and storage.

A responsibility

The section identifies several common situations where a specialist can be held liable for violations in the workplace. Since penalties, as well as procedures for determining the degree of responsibility, are contained in the relevant articles of the legislation, the description in this section is given in a general format, with a minimum of specifics.

Rights

Scroll labor rights described in this part is fairly standard for technical people. But it can be transformed and supplemented depending on industry specifics, the employee's place in the hierarchy, and other points. So, for a turner, if his work is related to foreign equipment, you can register the right to translate technical documentation by the employer or travel abroad to the manufacturing company to improve his skills.

Features of work

An additional section included in the instructions if the employer wants to highlight some features of the work: a non-standard schedule, the possibility of foreign business trips and other specific points.

After drawing up the instruction, it must be approved by specialists and managers of the enterprise. Usually, a lawyer, an HR manager, and deputy directors are involved in the process of its approval. Only after taking into account their comments, the instruction can be printed out - as a rule, on a letterhead, with the inclusion of the attributes of an official document - and given to the director for signature. The specialist himself gets acquainted with the instruction in the process of employment and, signing, agrees with its contents.