6th category

§ 147. Grinder 6th category

Characteristics of works. Grinding and finishing without a copier and using a copier of complex experimental and expensive parts and tools in 1-5 grades and gear-cutting tools in 4-5 degrees of accuracy, having a large number of ground external and internal mating surfaces of complex configuration, with hard-to-reach places for processing and measurement, requiring several permutations and precise alignment, using optical instruments. Adjustment of machines with the implementation of the necessary calculations.
Must know: design and rules for checking the accuracy of grinding machines various types and structures; methods of fastening installation and alignment of complex parts and tools and methods for determining the sequence of processing; rules and methods for dressing grinding wheels for processing complex profiles; physical and mechanical properties of processed metals; causes of deformation of parts during their installation and processing; ways to achieve the required qualities and roughness parameters.
Work examples
1. Gear cutters of class F, shavers of class A and B - profile tooth grinding.
2. Measuring gear wheels for gears - profile tooth grinding.
3. Knurling for profile grinding - profile grinding.
4. Broaches with a diameter of more than 125 mm, a length of more than 1200 mm - final grinding of the outer front surfaces of the cone and calibrating teeth.
5. Broaches with a screw tooth shaped, curvilinear, multifaceted, radius - profile grinding.
6. Involute, sharp-slotted and slotted straight-sided broaches - profile grinding.
7. Shaped cutters with a profile outlined by complex curves - manufacturing.
8. Flat or round cutters with hard alloy inserts with a complex multi-transition profile and complex mating - grinding with diamond washers.
9. Segments of matrices, punches, eccentrics with complex curved curves - grinding on optical grinding machines.
10. Beds of metalworking machines with a length of more than 3000 mm - grinding of flat guides.
11. Precision worm and spline cutters with a curved profile - profile grinding.
12. Multi-thread worms - grinding.
13. Spindles of large and complex machines - grinding the outer necks and holes.

From July 1, 2016, employers are required to apply professional standards if the requirements for the qualifications that an employee needs to perform a certain job function are established by the Labor Code, federal laws or other regulatory legal acts ( the federal law dated May 2, 2015 No. 122-FZ).
To search for approved professional standards of the Ministry of Labor of the Russian Federation, use

APPROVE:

________________________

[Job title]

________________________

________________________

[Name of company]

________________/[FULL NAME.]/

"____" ____________ 20__

JOB DESCRIPTION

Grinder of the 5th category

1. General Provisions

1.1. real job description determines and regulates the powers, functional and official duties, rights and responsibilities of the 5th grade grinder [Name of organization in the genitive case] (hereinafter referred to as the Company).

1.2. A grade 5 grinder is appointed to a position and dismissed from a position in accordance with the procedure established by the current labor legislation by order of the head of the Company.

1.3. The 5th grade grinder belongs to the category of workers and reports directly to the [name of the position of the immediate supervisor in the dative case] of the Company.

1.4. The 5th grade grinder is responsible for:

• timely and high-quality performance of tasks for their intended purpose;
• compliance with performance and labor discipline;
• compliance with labor safety measures, maintenance of order, compliance with the rules fire safety in the area of ​​work assigned to him (workplace).

1.5. A person with a secondary vocational education in this specialty and work experience of at least 1 year is appointed to the position of a grinder of the 5th category.

1.6. In practice, the grinder of the 5th category should be guided by:

• local acts and organizational and administrative documents of the Company;
• internal labor regulations;
• rules of labor protection and safety, ensuring industrial sanitation and fire protection;
• instructions, orders, decisions and instructions of the immediate supervisor;
• this job description.

1.7. The grinder of the 5th category must know:

• design features and rules for checking the accuracy of grinding machines of various types and universal and special devices;
• calculations related to the adjustment of machines;
• rules for determining the most advantageous grinding mode depending on the material, product shape and brand of grinding machines;
• rules for setting up and regulating control measuring tools and appliances;
• rules for determining cutting conditions according to reference books and machine data sheet.

1.8. During the period of temporary absence of the 5th grade grinder, his duties are assigned to [name of the position of the deputy].

2. Job responsibilities

The grinder of the 5th category performs the following labor functions:

2.1. Grinding and finishing of complex parts and tools with a large number of transitions and installations according to the 6th grade and gear-cutting tools according to the 6th degree of accuracy, requiring combined fastening and precise alignment, in several planes on grinding machines of various types and designs.

2.2. Grinding and finishing of external and internal shaped surfaces and cylindrical surfaces mated with curvilinear surfaces, with hard-to-reach places for processing and measurement.

2.3. Grinding long shafts and screws using several steady rests.

2.4. Grinding complex large-sized parts and assemblies on unique equipment.

2.5. Grinding of electrocorundum.

In case of official necessity, a 5th category grinder may be involved in the performance of duties overtime, in the manner prescribed by law.

3. Rights

The grinder of the 5th category has the right:

3.1. Get acquainted with the draft decisions of the management of the enterprise relating to its activities.

3.2. Submit proposals for the management to improve the work related to the responsibilities provided for in this job description.

3.3. Report to the immediate supervisor about all the shortcomings in the production activities of the enterprise (its structural divisions) identified in the course of the performance of their duties and make proposals for their elimination.

3.4. Request personally or on behalf of the immediate supervisor from the heads of enterprise departments and specialists information and documents necessary for the performance of their duties.

3.5. Involve specialists from all (separate) structural divisions of the Company in solving the tasks assigned to him (if it is provided for by the regulations on structural divisions, if not, with the permission of the head of the Company).

3.6. Require the management of the enterprise to assist in the performance of their duties and rights.

4. Responsibility and performance evaluation

4.1. A grade 5 grinder bears administrative, disciplinary and material (and in some cases provided for by the legislation of the Russian Federation, also criminal) responsibility for:

4.1.1. Non-fulfillment or improper fulfillment of official instructions of the immediate supervisor.

4.1.2. Failure to perform or improper performance of their labor functions and assigned tasks.

4.1.3. Unlawful use of the granted official powers, as well as their use for personal purposes.

4.1.4. Inaccurate information about the status of the work entrusted to him.

4.1.5. Failure to take measures to suppress the identified violations of safety regulations, fire and other rules that pose a threat to the activities of the enterprise and its employees.

4.1.6. Failure to enforce labor discipline.

4.2. Evaluation of the work of the grinder of the 5th category is carried out:

4.2.1. The immediate supervisor - regularly, in the course of the daily implementation by the employee of his labor functions.

4.2.2. Attestation Commission of the enterprise - periodically, but at least once every two years based on the documented results of the work for the evaluation period.

4.3. The main criterion for evaluating the work of a grinder of the 5th category is the quality, completeness and timeliness of his performance of the tasks provided for in this instruction.

5. Working conditions

5.1. The mode of operation of the 5th category grinder is determined in accordance with the internal labor regulations established by the Company.

5.2. In connection with the production need, the grinder of the 5th category is obliged to go on business trips (including local ones).

Acquainted with the instruction __________ / ____________ / "____" _______ 20__

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UNIFIED TARIFF - QUALIFICATION DIRECTORY OF WORKS AND PROFESSIONS OF WORKERS - ISSUE 2 - PART 2 - SECTIONS MECHANICAL PROCESSING ... Relevant in 2018

§ 144. GRINDER

3rd category

Characteristics of works. Grinding and finishing of parts of medium complexity, tools made of high-quality round profile steels in 8 - 10 grades and roughness parameter Ra 1.25 - 0.63 on various types of grinding machines. Machine setup. Installation and editing of grinding wheels using, if necessary, simple templates. Grinding and finishing of parts made of high-quality steels of round and flat profile according to 7 - 8 grades and roughness parameter Ra 0.63 - 0.32 on specialized semi-automatic and automatic machines adjusted for processing certain parts. Installation of parts on machines with alignment on the indicator in two planes.

Should know: the device, the rules for adjusting and checking the accuracy of grinding machines of various types; device and rules for the use of universal and special devices; purpose and rules for the use of control and measuring instruments and devices; characteristics of grinding wheels depending on the shape, hardness; bonds and grit of grinding wheels and the conditions for their use depending on the material being processed, on the processing methods and the required purity of processing; permissible speeds of rotation of grinding wheels; influence of temperature on the dimensions of parts; system of admissions and landings; quality and roughness parameters; basic properties of processed materials.

1. Bolts with a diameter of over 40 mm - grinding.

2. Gear rollers - centerless external grinding.

3. Shafts of car drive pumps - grinding.

4. Stepped shafts up to 1500 mm long - grinding necks.

5. Forks - final grinding.

6. Inserts - external grinding on the mandrel.

7. Taper bushings - grinding the outer cone.

8. Sleeves of hydraulic mechanisms of dump trucks - centerless grinding.

9. Details and products asbestos technical - grinding.

10. Cone countersinks - grinding the cone and the cutting part.

11. Flat calibers - grinding with an allowance for fine-tuning.

12. Rings internal roller bearings - preliminary grinding of the roller track.

13. Outer and inner rings of all types of bearings - final grinding of the ends.

14. External and internal rings of all types - external centerless grinding.

15. Radial rings and thrust bearings - grinding the ends of holes, grooves and spheres according to accuracy class N and P.

16. Car pump housings - flat grinding.

17. Tool bodies - keyway grinding.

18. Cases, rollers, rolling cones - grinding.

19. Clock and spring tape - edge grinding.

20. Rulers guides, shanks, needles of pipe profile presses, mandrels of rolling equipment - grinding.

21. Sheets (packages of 3 - 5 sheets) - edge grinding.

22. Matrices and punches small size- grinding flat and profile.

23. Machine and manual taps - grinding necks and working part.

24. Nipples, shank - grinding planes, straightening shank.

25. Knives for prefabricated cutting tools (milling cutters, countersinks, reamers) - flat grinding of the opposite cutting surface.

26. Blades for guillotine shears - flat grinding.

27. Hardening specimens from bulbous and tee profiles - grinding.

28. Axes, mandrels up to 1500 mm long - external grinding.

29. Axes of balancing suspension brackets - grinding.

30. Connecting rod pins, rollers - centerless grinding.

31. Plates and bridges of wrist and pocket watches - flat grinding.

32. Round dies - external and flat grinding.

33. Thread rolling dies - grinding of cutting surfaces.

34. Engine pistons with a diameter of up to 250 mm - external grinding.

35. Cylindrical and conical springs of all sizes - grinding the ends on a duplex and cylindrical grinding machines in cassettes on a magnetic plate with self-adjustment.

36. Cylindrical and conical reamers - grinding of the tail section.

37. Bearing rollers of all types and sizes - final grinding of the ends.

38. Rolls of artificial leather - abrasive treatment (pumice stone) and cleaning.

39. Drills with a diameter of more than 3 mm - grinding the tail and working part.

40. Bevel gear flanges - grinding.

41. Probes - grinding.

Characteristics of works. Grinding and finishing of complex parts and tools with a large number of transitions and installations according to the 6th grade and gear-cutting tools according to the 6th degree of accuracy, requiring combined fastening and precise alignment, in several planes on grinding machines of various types and designs. Grinding and finishing of external and internal shaped surfaces and cylindrical surfaces mated with curvilinear surfaces, with hard-to-reach places for processing and measurement. Grinding long shafts and screws using several steady rests. Grinding complex large-sized parts and assemblies on unique equipment. Grinding of electrocorundum.

Must know: design features and rules for checking the accuracy of grinding machines of various types and universal and special devices; calculations related to the adjustment of machines; rules for determining the most advantageous grinding mode depending on the material, product shape and brand of grinding machines; rules for setting up and regulating control and measuring instruments and devices; rules for determining cutting conditions according to reference books and machine data sheet.

Work examples

1. Drums - grinding and finishing threads.

2. Rolls of the stand - grinding and finishing.

3. Rolls of rolling mills - profiling, grinding and finishing on unique roll grinding machines.

4. Shafts of steam and water turbines of high power - grinding with finishing.

5. Multi-crankshafts of powerful diesel engines - grinding and finishing of main and connecting rod journals, adjacent collars, fillets, flanges.

6. Shafts and multi-cone holes - grinding and finishing.

7. Support rims - final grinding of all parts included in the support rim assembly, supports, swivel parts, racks and retainer pins.

8. Micrometric screws for precision instruments - fine-tuning after thread grinding.

9. Spools of hydraulic products - grinding and finishing of cases and sleeves.

10. Gauges and plugs with trapezoidal thread multi-start - grinding with finishing.

11. Carriages, beds, bridges, supports of machine tools - profile grinding.

12. Machine crossheads - grinding.

13. Steam turbine blades - profile grinding and polishing, external and internal, along a block with templates.

14. Complex matrices with cavities, cones located along the radii and curved surfaces - grinding.

15. Sliders - grinding.

16. Crossbars of a large-sized carousel machine - grinding the plane of the front guides under the slats.

17. Engine pistons with a diameter of over 500 mm - grinding and finishing.

18. Multi-seat molds - grinding.

19. Broaches up to 125 mm in diameter, up to 1200 mm long - final grinding.

20. Beds of metalworking machines up to 3000 mm long - grinding of plane guides.

21. Stacks of a large-sized carousel machine - grinding the plane of the guides.

22. Worm slotted cutters with a curved profile - profile grinding of teeth.

23. Cylinders of steam forging and stamping hammers and compressor cylinders - grinding and finishing.

24. Standards of the tail of the blades of steam turbines - grinding of the tail and slopes.

§ 143. Grinder of the 2nd category

Job Description. Grinding the outer surfaces of simple stable parts made of high-quality round steel grades according to grade 11 and roughness parameter Ra 5 - 1.25 on surface grinders, cylindrical grinders and centerless grinders in compliance with the machining sequence and cutting conditions according to technological map with grinding wheels. Grinding and finishing of parts and high-quality steels of round profile and planes according to 8 - 10 grades and roughness parameter Ra 1.25 - 0.63 on specialized semi-automatic and automatic machines adjusted for processing certain parts. Installation and alignment of parts on the machine and fixtures.

Must know: device and principle of operation of the same type of grinding machines; name, purpose and conditions for the use of the most common devices; arrangement of control and measuring instruments; types of grinding wheels; methods of dressing grinding wheels and the conditions for their use, depending on the materials being processed and the purity of processing; system of admissions and landings; quality and roughness parameters; purpose and properties of cooling and lubricating fluids.

Work examples

1. Mounting autonormals - centerless grinding.

2. Bolts with a diameter of up to 40 mm - grinding.

3. Rollers, bushings - centerless grinding.

4. Forks - grinding of the working part.

5. Needles - grinding.

6. Outer and inner rings of all types of bearings - preliminary grinding of the ends.

7. Piston rings of all sizes - preliminary grinding.

8. Mounting rings for milling mandrels - flat grinding.

9. Gramophone tape - edge grinding.

10. Angling bridges, drum table clock- grinding.

11. Axes, mandrels - centerless grinding.

12. Bearing rollers of all types and sizes - preliminary grinding of the ends.

13. Adjusting squares - grinding.

14. Cylindrical pins - centerless grinding.

§ 144. Grinder of the 3rd category

Job Description. Grinding and finishing of parts of medium complexity, tools made of high-quality round profile steels in 8 - 10 grades and roughness parameter Ra 1.25 - 0.63 on various types of grinding machines. Machine setup. Installation and editing of grinding wheels using, if necessary, simple templates. Grinding and finishing of parts made of high-quality steels of round and flat profile according to 7 - 8 grades and roughness parameter Ra 0.63 - 0.32 on specialized semi-automatic and automatic machines adjusted for processing certain parts. Installation of parts on machines with alignment on the indicator in two planes.

Must know: device, rules for adjusting and checking the accuracy of grinding machines of various types; device and rules for the use of universal and special devices; purpose and rules for the use of control and measuring instruments and devices; characteristics of grinding wheels depending on the shape, hardness; bonds and grit of grinding wheels and the conditions for their use depending on the material being processed, on the processing methods and the required purity of processing; permissible speeds of rotation of grinding wheels; influence of temperature on the dimensions of parts; system of admissions and landings; quality and roughness parameters; basic properties of processed materials.

Work examples

1. Bolts with a diameter of over 40 mm - grinding.

2. Gear rollers - centerless external grinding.

3. Shafts of car drive pumps - grinding.

4. Stepped shafts up to 1500 mm long - grinding necks.

5. Forks - final grinding.

6. Inserts - external grinding on the mandrel.

7. Taper bushings - grinding the outer cone.

8. Sleeves of hydraulic mechanisms of dump trucks - centerless grinding.

9. Details and products asbestos technical - grinding.

10. Cone countersinks - grinding the cone and the cutting part.

11. Flat calibers - grinding with an allowance for fine-tuning.

12. Rings internal roller bearings - preliminary grinding of the roller track.

13. Outer and inner rings of all types of bearings - final grinding of the ends.

14. External and internal rings of all types - external centerless grinding.

15. Radial rings and thrust bearings - grinding the ends of holes, grooves and spheres according to accuracy class N and P.

16. Car pump housings - flat grinding.

17. Tool bodies - keyway grinding.

18. Cases, rollers, rolling cones - grinding.

19. Clock and spring tape - edge grinding.

20. Rulers guides, shanks, needles of pipe profile presses, mandrels of rolling equipment - grinding.

21. Sheets (packages of 3 - 5 sheets) - edge grinding.

22. Matrices and punches of small sizes - flat and profile grinding.

23. Machine and manual taps - grinding necks and working part.

24. Nipples, shank - grinding planes, straightening shank.

25. Knives for prefabricated cutting tools (milling cutters, countersinks, reamers) - flat grinding of the opposite cutting surface.

26. Blades for guillotine shears - flat grinding.

27. Hardening specimens from bulbous and tee profiles - grinding.

28. Axes, mandrels up to 1500 mm long - external grinding.

29. Axes of balancing suspension brackets - grinding.

30. Connecting rod pins, rollers - centerless grinding.

31. Plates and bridges of wrist and pocket watches - flat grinding.

32. Round dies - external and flat grinding.

33. Thread rolling dies - grinding of cutting surfaces.

34. Engine pistons with a diameter of up to 250 mm - external grinding.

35. Cylindrical and conical springs of all sizes - grinding ends on a double-spindle and cylindrical grinding machines in cassettes on a magnetic plate with self-adjustment.

36. Cylindrical and conical reamers - grinding of the tail section.

37. Bearing rollers of all types and sizes - final grinding of the ends.

38. Rolls of artificial leather - abrasive treatment (pumice stone) and cleaning.

39. Drills with a diameter of more than 3 mm - grinding the tail and working part.

40. Bevel gear flanges - grinding.

41. Probes - grinding.

§ 145. Grinder of the 4th category

Job Description. Grinding and finishing of planes, cylindrical and conical outer and internal surfaces complex parts and tools according to 7 - 8 qualifications, gear-cutting tools according to 7 degrees of accuracy and roughness parameter Ra 0.63 - 0.16 on large and complex grinding machines of various types; installation and alignment of parts in several planes. Grinding and cutting of corrugations on the surface of the barrel of rolls on grinding and corrugating machines.

Must know: device, kinematic diagrams and rules for checking the accuracy of grinding machines of various types; design features and rules for the use of universal and special devices; arrangement of control and measuring instruments and devices; possible deformations during the processing of parts; requirements for the cleanliness of the finish of workpieces; system of admissions and landings; quality and roughness parameters; rules and methods for balancing and testing grinding wheels for strength.

Work examples

1. Camshafts - final profile grinding of cams.

2. Rolls of pipe-rolling machines - grinding according to the template using hanging grinders and on the machine.

3. Stepped shafts over 1500 mm long - grinding of necks.

4. Thrust shafts - grinding necks and thrust ridges.

5. Rolling - grinding of the cone and neck.

6. Screws - grinding.

7. Bushings - grinding.

8. Transition bushings - grinding the inner cone.

9. Gear-cutting combs - profile grinding.

10. Details and products asbestos technical cold and hot forming - grinding on production lines and aggregate machines.

11. Optical glass fiber products - grinding.

12. Tools equipped with hard alloy - finishing.

13. Gauges-standards for bevel gears - grinding of sponges with an allowance for fine-tuning.

14. Calibers are smooth - grinding with a finishing allowance.

15. Gauges, mandrels of cold-rolled pipe mills - grinding.

16. Carriages, beds, bridges, machine tool supports - preliminary grinding.

17. Rings of radial and thrust bearings - grinding the ends of holes, grooves and spheres according to accuracy class B and A and external grinding according to accuracy class H, A, P and B.

18. Rings internal roller bearings - final grinding of the roller track.

19. Cases of complex multi-place devices - full grinding.

20. Special cams and gears - grinding thin-walled ends.

21. Cams of turning cartridges - full grinding.

22. Matrices for molds (with several working holes) - grinding.

23. Axes, mandrels longer than 1500 mm - external grinding.

24. Clamping mandrels - external grinding of the split collet cone.

25. Mandrels of pipe mills - grinding.

26. Fingers of driven clutches - grinding and finishing.

27. Dies "Lendis" - grinding planes, " dovetail"and the intake part.

28. Thread rolling dies - grinding the side planes in the fixture.

29. Acoustic plates - grinding.

30. Pistons of internal combustion engines - external grinding.

31. Engine pistons with a diameter of over 250 to 500 mm - external grinding.

32. Checking prisms - grinding.

33. Devices for balancing gears - grinding.

34. Cylindrical and conical reamers - grinding of the working part.

35. Gear cutters - full grinding.

36. Prismatic shaped cutters - grinding of the cutting part and dovetail according to the template.

37. Tangential cutters of a complex profile - grinding.

38. Drills with a diameter of up to 3 mm - grinding the working part.

39. Hubs of the middle disc of the variator - grinding the inner surface.

40. Thread cutters, worm prefabricated three-sided and face countersinks - grinding.

41. Hollow cutters - hole grinding, backing and round grinding.

42. Face cutters, drills and countersinks with hard alloy inserts - grinding.

43. Cylinders, rods, complex surfaces of punches - grinding.

44. Motor connecting rods - grinding holes in a large head.

45. Gears - grinding holes with alignment on the tooth and end.

46. ​​Standards for the installation of cutters - grinding external and face in size.

§ 146. Grinder of the 5th category

Job Description. Grinding and finishing of complex parts and tools with a large number of transitions and installations according to the 6th grade and gear-cutting tools according to the 6th degree of accuracy, requiring combined fastening and precise alignment, in several planes on grinding machines of various types and designs. Grinding and finishing of external and internal shaped surfaces and cylindrical surfaces mated with curvilinear surfaces, with hard-to-reach places for processing and measurement. Grinding long shafts and screws using several steady rests. Grinding complex large-sized parts and assemblies on unique equipment. Grinding of electrocorundum.

Must know: design features and rules for checking the accuracy of grinding machines of various types and universal and special devices; calculations related to the adjustment of machines; rules for determining the most advantageous grinding mode depending on the material, product shape and brand of grinding machines; rules for setting up and regulating control and measuring instruments and devices; rules for determining cutting conditions according to reference books and machine data sheet.

Work examples

1. Drums - grinding and finishing threads.

2. Rolls of the stand - grinding and finishing.

3. Rolls of rolling mills - profiling, grinding and finishing on unique roll grinding machines.

4. Shafts of steam and water turbines of high power - grinding with finishing.

5. Multi-crankshafts of powerful diesel engines - grinding and finishing of main and connecting rod journals, adjacent collars, fillets, flanges.

6. Shafts and multi-cone holes - grinding and finishing.

7. Support rims - final grinding of all parts included in the support rim assembly, supports, swivel parts, racks and retainer pins.

8. Micrometric screws for precision instruments - fine-tuning after thread grinding.

9. Spools of hydraulic products - grinding and finishing of cases and sleeves.

10. Gauges and plugs with trapezoidal thread multi-start - grinding with finishing.

11. Carriages, beds, bridges, supports of machine tools - profile grinding.

12. Machine crossheads - grinding.

13. Steam turbine blades - profile grinding and polishing, external and internal, along a block with templates.

14. Complex matrices with cavities, cones located along the radii and curved surfaces - grinding.

15. Sliders - grinding.

16. Crossbars of a large-sized carousel machine - grinding the plane of the front guides under the slats.

17. Engine pistons with a diameter of over 500 mm - grinding and finishing.

18. Multi-seat molds - grinding.

19. Broaches up to 125 mm in diameter, up to 1200 mm long - final grinding.

20. Beds of metalworking machines up to 3000 mm long - grinding of plane guides.

21. Stacks of a large-sized carousel machine - grinding the plane of the guides.

22. Worm slotted cutters with a curved profile - profile grinding of teeth.

23. Cylinders of steam forging and stamping hammers and compressor cylinders - grinding and finishing.

24. Standards of the tail of the blades of steam turbines - grinding of the tail and slopes.

§ 147. Grinder of the 6th category

Job Description. Grinding and finishing without a copier and using a copier of complex experimental and expensive parts and tools in 1-5 grades and gear-cutting tools in 4-5 degrees of accuracy, having a large number of ground external and internal mating surfaces of complex configuration, with hard-to-reach places for processing and measurement, requiring several permutations and precise alignment, using optical instruments. Adjustment of machines with the implementation of the necessary calculations.

Must know: design and rules for checking the accuracy of grinding machines of various types and designs; methods of fastening installation and alignment of complex parts and tools and methods for determining the sequence of processing; rules and methods for dressing grinding wheels for processing complex profiles; physical and mechanical properties of processed metals; causes of deformation of parts during their installation and processing; ways to achieve the required qualities and roughness parameters.

Work examples

1. Gear cutters of class F, shavers of class A and B - profile tooth grinding.

2. Measuring gear wheels for gears - profile tooth grinding.

3. Knurling for profile grinding - profile grinding.

4. Broaches with a diameter of more than 125 mm, a length of more than 1200 mm - final grinding of the outer front surfaces of the cone and calibrating teeth.

5. Broaches with a screw tooth shaped, curvilinear, multifaceted, radius - profile grinding.

6. Involute, sharp-slotted and slotted straight-sided broaches - profile grinding.

7. Shaped cutters with a profile outlined by complex curves - manufacturing.

8. Flat or round cutters with hard alloy inserts with a complex multi-transition profile and complex mating - grinding with diamond washers.

9. Segments of matrices, punches, eccentrics with complex curved curves - grinding on optical grinding machines.

10. Beds of metalworking machines with a length of more than 3000 mm - grinding of flat guides.

11. Precision worm and spline cutters with a curved profile - profile grinding.

12. Multi-thread worms - grinding.

13. Spindles of large and complex machines - grinding the outer necks and holes.