Instructions for labor protection when working with thread-cutting tools

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Instructions for labor protection when working with thread-cutting tools

Occupational Safety and Health

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General requirements for labor protection

1.1. This instruction establishes the requirements for labor protection when working with a thread-cutting tool.

1.2. Work with thread-cutting tools is allowed for workers who have passed a medical examination, industrial training, passed the exam of the qualification commission and received a certificate for the right to perform these works, as well as those who have undergone an introductory briefing on labor protection upon employment and initial briefing at the workplace, as well as repeated and, if necessary, unscheduled and targeted safety briefings.

1.3. Employees admitted to work must comply with the internal regulations established by the organization.

1.4. When working with a thread-cutting tool, the mode of work and rest should be observed. Rest and smoke is allowed in specially equipped places.

1.5. Thread-cutting tools must be assigned to workers for individual or team use, placed in special tool cabinets, tables located next to the equipment or inside it, if it seems convenient, safe and provided for by the design.

1.6. Workers need to perform only the work assigned by the work manager. It is not allowed to entrust your work to other employees and the admission of unauthorized persons to the workplace.

1.7. An employee may be affected by dangerous and harmful production factors: noise, vibration, unfavorable parameters of the production microclimate, electric current, gas pollution and dustiness.

1.8. Overalls, footwear and other personal protective equipment are issued to employees in accordance with applicable standards in accordance with the work performed.

1.9. Overalls, footwear and other personal protective equipment should be stored in specially designated areas in compliance with the storage rules and used in good condition.

1.10. Workers performing work with thread-cutting tools must comply with fire safety rules, know fire warning signals, the location of fire extinguishing equipment and be able to use them. It is not allowed to use fire-fighting equipment for household purposes, and to block passages and access to fire-fighting equipment.

1.11. In the event of an accident, the victim should stop work, notify the work manager and seek medical attention.

1.12. Workers performing work with thread-cutting tools need to know and observe the rules of personal hygiene (wash hands with soap and take a shower at the end of work).

1.13. If any questions arise during the work related to its safe performance, you should contact the employee responsible for the safe performance of work.

1.14. Employees who violate the requirements of this instruction are liable in accordance with the current legislation of the Russian Federation.

2. Labor protection requirements before starting work

2.1. Before starting work, you should properly put on and tidy up your work clothes: fasten the cuffs of the sleeves, tuck in the clothes so that there are no fluttering ends, put your hair under a tight-fitting headdress.

2.2. Inspect the workplace, remove objects that interfere with work and clear the aisles. Organize your workspace so that everything you need is at hand. The tool at the workplace should be positioned so that it cannot roll or fall.

2.3. Make sure the work area is adequately lit.

2.4. Check the serviceability of the thread-cutting tool (taps, dies, cutters, milling cutters, rollers and forming machines):

they must be sharply sharpened;
blockages, chipping and burns on the cutting edges are not allowed;
the presence of cracks, crumbled places and blockages of cutting edges on the carbide plates of the tool is not allowed;
the presence of cracks and traces of corrosion, dents and black holes on the surface of taps and dies is not allowed;
the presence of a decarburized layer on the working surfaces of the ribbons and the shank is not allowed.

2.5. An employee starting work with a thread-cutting tool is not allowed to start it if:

insufficiently lit workplace;
the thread-cutting tool is poorly sharpened;
work order not received.

3. Labor protection requirements during work

3.1. Use only serviceable tools and devices and use them strictly for their intended purpose.

3.2. During operation, do not lean close to the cutting tool.

3.3. Install the workpiece correctly and securely in order to exclude the possibility of a violation of its fastening or the occurrence of other violations of the technological process during threading.

3.4. The threading tool must be precisely centered in the machine along the axis of the spindle and firmly seated in the chuck.

3.5. Taps and dies should only be used with the correct sharpening.

3.6. Installation and change of the thread-cutting tool should be carried out at a complete stop of the machine.

3.7. When installing a threading tool in fixtures or in a machine, be careful not to cut your hands on the cutting edge of the tool.

A tool with a worn shank must not be used.

3.8. It is necessary to ensure that the vise and clamps are in good condition, the notch of the jaws is unworked.

3.9. To fasten taps, it is not allowed to use cartridges and devices with protruding unprotected parts (nuts, screws).

3.10. When loosening the fastening of the thread-cutting tool and the workpiece, stop the rotation of the tool and properly fasten it.

3.11. When turning the product in a chuck or vice with a tap, it is not allowed to hold it with your hand, but you should stop the rotation of the tool, make the necessary correction or take the appropriate device.

3.12. In the event of a tool jamming, breakage of the shank, tap or other tool, turn off the machine.

3.13. Do not touch the dies with your fingers to detect its cutting qualities.

3.14. It is not allowed to measure the thread with gauges during the rotation of the product or dies.

3.15. When installing bolts or rods, their ends must be well filled in order to avoid possible thread breaks and breakage of dies or lerok.

3.16. When cutting threads in deep holes, periodically withdraw the tap from the hole to remove chips.

Remove chips from the threaded thread and the table only when the tool is stopped and removed from the part.

3.17. When working with thread cutters, you should:

turn on the spindle rotation first, and then the feed, while the workpiece should be rotated until it comes into contact with the cutter, the plunge should be made smoothly, without shock;
before stopping the machine, first turn off the feed, move the cutting tool away from the workpiece, and then turn off the spindle rotation.

3.18. It is necessary to monitor the correct installation of the threading cutter and do not put different pieces of metal under it, use linings equal to the area of the cutter.

3.19. The cutter should be clamped with the minimum possible overhang and at least three bolts. It is necessary to have a set of linings of various thicknesses, length and width not less than the supporting part of the cutter. The use of random linings is not allowed.

3.20. When manually cutting a thread, it is not allowed to press hard on the cutting tool and hold the part with your hands.

4. Labor protection requirements in emergency situations

4.1. You should stop performing work, turn off the equipment used, report the incident to the work manager if at least one of the following situations occurs:

malfunctioning equipment;
malfunctioning vise and clamps;
damage to the working tool;
the appearance of smoke or smell characteristic of burning insulation;
the appearance of increased noise, knocking, vibration;
malfunction of the power wiring;
breakage of the protective earth conductor;
lack of lighting.

4.2. In the event of an accident, you should:

take measures to release the victim from the action of the traumatic factor;
provide the victim with first aid, depending on the type of injury;
inform management about the incident and take measures to evacuate the victim to a medical facility.

4.3. In the event of a fire, you should:

stop working;
turn off electrical equipment;
call the fire brigade and inform the management of the organization;
start extinguishing the fire with the available fire extinguishing equipment.

4.4. In case of electric shock, you should:

turn off electrical equipment;
release the victim from live parts;
provide assistance to the victim;
report the incident to the management of the organization.

5. Labor protection requirements at the end of work

5.1. Tidy up the workplace, put the tools and fixtures in a specially designated place, remove chips from the desktop, clean the tools and fixtures from dust and dirt, carefully fold the finished parts and workpieces.

5.2. Remove overalls, personal protective equipment, deposit in the prescribed manner.

5.3. Wash face and hands with warm water and soap, take a shower.

5.4. Notify the work manager about the work performed and any problems.

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