In order to maintain the normal operation and service life of the CNC lathe, and effectively prevent and reduce various failures of the lathe, it is one of the tasks to do a good job in the lubrication and maintenance of the CNC lathe.

The lubrication method of CNC lathe and the selection of lubricating grease must be determined according to the structure of CNC lathe, degree of automation, working conditions and precision requirements of the machine tool. According to the type of CNC lathe equipment, the working environment and the required degree of precision requirements, the requirements for the viscosity, oil resistance, oxidation resistance and extreme pressure resistance of the lubricating oil are also different.

How to lubricate CNC lathes

In order to make CNC machine tools work normally and reduce wear and tear, operators or students should add oil to the frictional parts of the machine tools. The lubrication methods are: oil injection lubrication, oil rope lubrication, splash lubrication and oil pump circulation lubrication.

Grease Requirements:

• 3 industrial lubricating oil is used for the butter part.
• Oil hole position: 40 oil.

There should be enough lubricating oil in the gearbox. Generally, it can be added to half the height of the oil level window. Make sure the gear splash and reciprocating oil pump are oiled. CNC lathe spindle box oil is generally replaced every three months, and replenished after cleaning the box (including: replacement of gearbox, tool box, tool holder box, etc.)

• The fuel tank of the trailer fuel tank is charged once per shift.
• Lubricate the oil cup of the gearbox bearing every five days.
• The oil tank on the tool box is filled with oil once per shift.
• CNC machine tool guide rail is the key and difficult point of machine tool lubrication. The movement of the guide rail is repeated, and the speed varies greatly, which causes the phenomenon of crawling, reduces the machining accuracy, and may also lead to the scrapping of the machine tool. Therefore, the selection of lubricating oil should consider the appropriate viscosity and good creep resistance of the lubricating oil. In metal cutting operations, most emulsions can get into the lubricating oil and cause deterioration. Therefore, the demulsibility, water resistance, rust resistance and corrosion resistance of the lubricating oil must be considered when selecting the lubricating oil.

How to maintain the CNC lathe?

CNC lathes run for 500 hours and require primary maintenance, i.e. cleaning, lubrication and necessary adjustments.

• Clean the surface and cover of the CNC machine, keep the inside and outside clean, no rust, no yellow robes. Clean lead screws, polished rods, joysticks, oil holes, felt pads. i.e. external maintenance.
• Overhaul the screw, handball, handle, oil cup, wrench, self-centering chuck, etc.
• Check whether the main shaft cover screws and various components are loose, and adjust the direct clearance of the clutch and the clearance of the large, medium and small sliding plates. Adjust the horizontal screw clearance to allow 1/20 of the dial idling.
• Clean the gearbox gears and bushings and inject new grease. Adjust the gear meshing clearance; check whether the bushing is shaken.
• Clean the tailstock and taper hole burrs to keep the inside and outside clean.
• Cooling and lubrication system.
• Check the electrical contact points in the electrical part, and the wiring is firm.

Conclusion

The maintenance of CNC lathes is summed up in long-term practice. It has good economic and social benefits and is feasible. I hope it helps you.

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