How to check the maintenance of machine tools and equipment, and how to fill in the mechanical equip

I am engaged in equipment management, first of all, what is your mechanical equipment inspection and maintenance table?

1.The general maintenance record form should have inspection and maintenance items and inspection standards, and inspection and maintenance cycles, which are based on the inspection and maintenance of the equipment.

2.Of course, the items and cycles in the maintenance record change dynamically according to the operating status of the equipment, that is to say, it is best to update the inspection items regularly (every year or 2 years) according to the frequency of equipment failures.

3.I really don't know, I suggest that you make an annual maintenance plan for all the items of the equipment, and make a time to implement it according to the plan.

4.After inspecting each item, it is necessary to indicate in the record sheet whether the inspection item is abnormal, intact, or something replaced, etc., and record the time and the inspector for follow-up tracking.

Do a good job of troubleshooting machine tools.

Once the machine tool has an alarm, it means that the machine tool has failed or is in an abnormal working state. The cause should be pinpointed before you can continue running. Once the CNC machine tool is shut down, it will directly affect the internship teaching plan, and the consequences will be very serious.

Therefore, the maintenance personnel must have superb technology and rigorous work style, carefully make maintenance records, scientifically analyze the causes of failures, and find the root causes and laws of failures, so as to eliminate machine tool failures.

Pay attention to the dustproof of the numerical control device.

First of all, in addition to the necessary maintenance, the cabinet door should be opened as little as possible, because the cabinet door is often open and easy to make the dust, oil mist and metal powder floating in the air fall on the printed circuit board and the electrical connector, which is easy to cause the insulation resistance between the components to decrease, which will cause failure and even cause damage to the components, so it is very important to strengthen the sealing management of the CNC cabinet and the strong current cabinet. The spindle speed control unit of some CNC machine tools is installed in the strong current cabinet, and the door of the strong current cabinet is not tightly closed, which is a reason for the damage of electrical components and the failure of the control of the CNC system. Secondly, some circuit boards and connectors that have been polluted by external dust and oil mist can be sprayed with special electronic cleaners.

Pay attention to the heat dissipation of the numerical control device.

Check whether the cooling fan on the CNC cabinet is working normally every day, and check whether the air duct filter is blocked every six months or quarters depending on the working environment. If the dust accumulation on the filter screen is excessive, it needs to be cleaned up in time, otherwise it will cause the temperature in the cabinet of the CNC system to be high (generally not allowed to exceed 55), resulting in an overheating alarm or unreliable operation of the CNC system.

Content from user: gxg1950

Chapter 5 Routine Maintenance.

The first section is called regular maintenance.

Training Objectives: 1.Able to develop routine maintenance procedures for machining centers.

2.Able to supervise and inspect the daily maintenance status of the machining center.

2. Operational skills.

Machining center is a kind of comprehensive application of computer technology, automatic control technology, precision measurement technology and machine tool design and other advanced technology of typical mechatronics products, due to the use of environmental conditions, operation level and other reasons, will often occur failure needs to be repaired. During the warranty period of the machine tool, the first manufacturer is generally responsible. However, after the warranty period, the customer is responsible for the paid services provided by machine tool manufacturers, especially imported machine tool manufacturers.

Therefore, it is very important for the operators of the machine tool to pay attention to the regular maintenance of the machining center, including the development of maintenance plans, daily maintenance, inspections, and regular maintenance of important parts and wear parts of the machine tool"Physical examination"In this way, the machine tool can not occur or less failure, so that the machine tool is always in good condition, so as to improve the running capacity, so as to provide a strong guarantee for the quality and ergonomics of product processing.

The following is elaborated on the maintenance parts, devices and maintenance cycles from the aspects of mechanical, hydraulic, pneumatic, lubrication, electrical, numerical control, drive motor, programmable machine tool controller, detection and feedback, etc., in order to help the management and use of the machining center.

1.Inspection and debugging of mechanical parts.

The mechanical transmission system of the machining center is the entire mechanical transmission chain and ancillary mechanism that transforms the rotary motion of the motor into the linear motion of the worktable, including the reduction gear device, ball screw pair, guide rail and worktable. Mechanical failures in machining centers are often manifested in motion failures and out-of-tolerance accuracy. 〈

1. Check the oil standard and oil quantity of the lubricating oil tank every day, add lubricating oil in time, and the lubrication pump can start and stop in time.

2. Every day, remove chips and dirt from the X-axis and Z-axis guide rail surface, check whether the lubricating oil is full, and whether the guide rail surface is scratched or damaged.

3. Check the pressure of the pneumatic control system with the compressed air source every day, which should be within the normal range.

4. Every day, the air source automatic water separator water filter, automatic air dryer cleans up the water filtered out in the water separator in time to ensure the normal operation of the automatic air dryer.

5. Every day, when the oil level of the pneumatic converter and supercharger is found to be insufficient, the oil is replenished in time.

6. Every day, the spindle lubrication constant temperature oil tank works normally, the oil volume is sufficient, and the working range is appropriate.

7. The balance pressure indication of the hydraulic balance system is normal every day, and the balance valve works normally when moving quickly.

8. Every day, there is no abnormal noise in the oil tank and oil pump of the hydraulic system of the machine tool, the pressure gauge indication is normal, there is no leakage of the pipeline and each joint, and the working oil level is normal.

9. Every day, the cooling and ventilation devices of the electrical cabinet and the cooling fan of the electrical cabinet work normally, and the air duct filter screen is not blocked.

10. Check the CNC input and output device every day, the equipment is clean, the mechanical structure is well lubricated, etc.

11. Every day, there should be no loosening or water leakage of various protective devices, guide rails, machine tool protective covers, etc.

12. Clean the filter screen of each electrical cabinet every week.

14. Take out the stored waste oil in time from the irregular waste oil pool to avoid overflow.

15. The chip conveyor from time to time often cleans the chips and checks whether there are any jams.

16. Check the spindle drive belt from time to time, and adjust the tightness of the belt according to the manual, and replace it in time if the belt is damaged.

17. Check the inlays on the guide rails of each axis from time to time, and adjust the tightness state according to the machine tool manual.

18. Clean the old grease on the lead screw every six months and apply new grease.

19. Clean the relief valve, pressure reducing valve, oil filter, oil tank and replace or filter the hydraulic oil in the hydraulic oil circuit every six months.

20. Every year, the spindle lubricates, the constant temperature oil tank, cleans the filter, and replaces the lubricating oil.

21. Check and replace the brushes of the DC servo motor every year, check the surface of the commutator, blow the carbon powder, remove the burrs, and replace the brushes that are too short in length.

22. Every year, the lubricating oil pump and filter clean the bottom of the lubricating oil pool and replace the oil filter.

Hello, the daily maintenance and maintenance methods of the machine tool are as follows, 1. Check the air pressure, relax the adjustment knob, adjust the pressure according to the principle of right-hand pressurization and left-hand decompression, which is generally set to 5 7kg cm 2. The pressure switch is usually set to 5kg cm2, when it is lower than 5kg cm2, the system will have a "lowair pressure" alarm, and the alarm information will disappear when the pressure rises. 2. Check the oil level height of the pneumatic triplet, which is about 2 3 of the height of the entire tubing.

The water vapor in the pneumatic triplet oil filter tank is discharged by the drain switch every day. 3. Check the level of lubricating oil to ensure the lubrication of the machine tool. 4. Check whether the coolant in the coolant tank is enough, not enough to add in time.

5. Check whether the air blowing in the cone hole of the spindle is normal, wipe the cone hole in the spindle with a clean cotton cloth, and spray light oil. 6. Remove the cutting and oil stains on the worktable, machine tool and three-axis telescopic shield. 7. Keep the environment around the machine clean and tidy.

8. Check whether there is leakage in the hydraulic unit pipe. 9. Check whether all signal lights and abnormal warning lights are normal. 10. Clean the exposed limit switch and bumper.

11. After the daily work of the machine tool is completed, the cleaning work will be carried out. 12. Clean the knife arm and knives in the magazine, especially the claws.

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The daily maintenance and maintenance method of the machine tool is the appearance maintenance, do a good job of cleaning the machine tool every day, clean the iron filings, and wipe the coolant on the guide rail part. Manually drain the condensate every hour, pay attention to the glass, the silicone color should be blue, and note that the dryer motor must be running when loaded. <>

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Routine maintenance and upkeep of the machine.

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The daily maintenance and maintenance method of the machine tool is the appearance maintenance, do a good job of cleaning the machine tool every day, clean the iron filings, and wipe the coolant on the guide rail part. Manually drain the condensate every hour, pay attention to the glass, the silicone color should be blue, and note that the dryer motor must be running when loaded. <>

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Extended information: The maintenance method of the machine tool is to cut off the power supply during maintenance, the power supply must be cut off, and then the work must be carried out to ensure the safety of operation. Clean up the working location, clean up the work area, ensure that there is neatness and enough space during the cleaning process, remove and clean each cover of the machine tool to keep the inside and outside clean, no rust, no oil.

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