A brief introduction: the safety matters that should be paid attention to when using the knife die carving machine

Key safety matters in the use of knife die engraving machine

The die carving machine belongs to high-speed CNC machining equipment, and there are safety risks such as high-speed rotation, tool cutting, workpiece clamping, etc. It is necessary to strictly abide by the four principles of operation specification, protection in place, pre-job inspection and emergency treatment. The following are the core safety precautions in different dimensions, which are concise and suitable for actual operation scenarios:

First, before starting the machine: conduct a comprehensive inspection to eliminate hidden dangers at the source.

Check the state of the equipment: make sure that the machine body is firmly fixed, the guide rail is free of foreign objects, the spindle rotates without abnormal noise, the tool is firmly clamped (no looseness or edge breakage), and the tool diameter/tool type matches the machining process. It is forbidden to use damaged or nonstandard tools.

Check the parameters with the workpiece: make sure that the machining drawings and NC program parameters (rotational speed, feed speed and machining depth) are correct, the workpiece is firmly clamped (fixed by fixture/platen to avoid manual pressing), and there are no redundant materials and tools in the machining area.

Check the protection and power supply: make sure that the protective doors and shields of the equipment are intact and closed, and the emergency stop button is sensitive and effective; The power supply and grounding lines are normal, there is no leakage and virtual connection, and the numerical control system and cooling system (water cooling/air cooling) are operating normally.

Personal protection is in place: the operator must wear impact goggles and anti-slip labor protection shoes, and his long hair needs to be rolled up and put into the hat. It is forbidden to wear loose clothes and gloves/jewelry to operate (to avoid being involved in rotating parts), and wear dust masks/masks when processing heavy dust.

Second, in the operation: standardize the operation and put an end to violations.

It is forbidden to operate without authorization: it is forbidden for non-designated operators to start the machine, and it is forbidden to leave their posts without authorization during operation. If they need to leave their posts, they must stop the machine and cut off the power supply first.

It is forbidden to approach illegally: during the operation of the equipment (when the spindle is rotating and the tool is cutting), it is forbidden to put your hands and head into the processing area, to open the protective door, and not to touch the rotating tool, workpiece and moving parts with your hands.

Strictly control the machining rhythm: during machining, closely observe the running state of the equipment. If there are abnormal sounds, jitter, tool breakage, workpiece displacement, etc., immediately press the emergency stop button, cut off the power supply after stopping, and then troubleshoot the fault. It is forbidden to run with faults.

Specification adjustment and feeding: If it is necessary to suspend adjustment, measure the workpiece or change the tool, it must be stopped first, and then operated after the spindle stops completely and the tool is reset. When changing the tool, it is necessary to confirm that the tool matches the spindle and lock it with special tools.

Auxiliary protection: when processing high-hardness materials (such as steel plate and cemented carbide) or high-speed cutting, make sure that the cooling system works normally to prevent the tool from burning at high temperature and iron filings from splashing and injuring people; When iron filings accumulate, use special tools to clean them. It is forbidden to grab them directly by hand.

III. After shutdown: clean up the place and maintain the equipment.

Standardizing the shutdown process: after the machining is completed, first reset the spindle and stop the rotation, then cut off the power supply of the equipment and turn off the cooling system. It is strictly forbidden to stop the machine directly without power supply.

Clean up the site safely: use special tools (brushes and hooks) to clean the iron filings and dust in the processing area, and wipe the equipment guide rail, spindle and other parts. It is strictly forbidden to directly flush the electrical cabinet, CNC system and other precision parts with water to prevent short circuit.

Return of tools and workpieces: put the tools, fixtures and measuring tools in designated positions, mark the processed workpieces, clean up the sundries on site, and keep the operation area clean and smooth.

Do a good job in equipment maintenance: regularly check the tool wear, rail lubrication and fixture tightness, add lubricating oil according to the equipment requirements, make a good record of equipment operation, report for repair in time when faults are found, and it is strictly forbidden to disassemble or modify the equipment without permission.

Fourth, special scenarios: targeted protection to avoid special risks.

NC programming/debugging: After off-line programming is completed, run the test (no tool and no workpiece) first, and then load the tool and try cutting after confirming that the program trajectory is correct. When trying cutting, reduce the rotation speed and feed speed, and gradually adjust to the standard parameters.

Multi-person cooperation: If multi-person cooperation is needed, the division of labor must be clearly defined, and one person should be under unified command, so as to avoid multi-person simultaneous operation of equipment and accidents caused by conflicting instructions.

Equipment maintenance: When the equipment is overhauled and maintained, the main power supply must be cut off first, and a * * warning sign "No closing is allowed, maintenance is under way" should be hung, and special person should be assigned for supervision. It is forbidden to carry out live maintenance.

Environmental protection: the operation area should be well ventilated, equipped with fire extinguishing equipment, and fire prevention measures should be taken when processing flammable materials to avoid fire caused by dust accumulation; Flammable, explosive and corrosive articles are strictly prohibited to be stacked around the equipment.

V. Core red line: illegal operation that is forbidden to touch.

It is forbidden to operate the equipment after drinking, fatigue and illness;

Cleaning, measuring, adjusting and other operations are strictly prohibited during equipment operation;

It is forbidden to process beyond the parameters (such as ultra-speed and ultra-deep cutting), and it is forbidden to process non-designated materials with a die carving machine;

It is forbidden to dismantle or damage the safety components such as protective devices, emergency stop buttons and limit switches of the equipment;

It is forbidden to manually press the workpiece for processing, and it is forbidden to place irrelevant items in the processing area.