The maintenance work of the lathe directly affects the quality of parts processing and the level of production efficiency. In order to maintain the degree of the lathe and extend its service life, in addition to being able to operate the lathe proficiently, the lathe should also learn to perform reasonable maintenance on the lathe. After the lathe has been running for 500 hours, the first level maintenance is required. In industrial and mining enterprises, first-level maintenance work is carried out with the cooperation of operators as the main maintenance workers.

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1. Cut off the power

During maintenance, the power must be cut off and then work to ensure safe operation.

2. Clean up the working position

Clean the work area to ensure that there is clean and sufficient space during the cleaning process

3. Remove and clean each cover of the machine tool

Keep the inside and outside clean, free of rust and oil.

4. Maintenance of the knife holder and skateboard part

① Remove the lower blade holder for cleaning.

②Remove the small precision plate lead screw, nut and insert for cleaning.

③Remove and clean the screw, nut and insert of the middle slide plate.

④Remove the bed saddle and clean it with dustproof oil felt, then refuel and reinstall.

⑤After refueling the screw, nut, insert and guide rail of the middle slide plate, reinstall and adjust the gap of insert and screw nut.

⑥After adding oil to the small slide screw, nut, insert and guide rail, reassemble and adjust the insert gap and the screw nut gap.

⑦Clean the bottom surface of the square knife holder, then apply oil, reinstall and press tightly.

5. Maintenance of the tailstock part of the lathe

①Remove the tailstock sleeve and compression block, clean and apply oil.

②Remove the tailstock screw and nut, clean and add oil.

③Clean and refuel the tailstock.

④ Reinstall and adjust.

6. Maintenance of the headstock part of the lathe

① Remove the filter, clean and reinstall it.

②Check the spindle and check whether the nut is loose and whether the fastening screw is locked.

③Adjust the clearance of friction plate and brake.

7. Maintenance of the exchange gearbox part of the lathe

①Remove the exchange gear carrier gear, sector plate, and shaft sleeve, clean, refuel, and reinstall.

② Adjust the gear meshing gap.

③Check whether the shaft sleeve is shaking.

 

8. Feed box maintenance

The feed box should be cleaned, and the velvet rope should be cleaned and refueled and put in the same place. The missing should be made up.

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Clean the main motor and the V-belt wheel of the spindle box, check and adjust the tightness of the V-belt.

10. Clean the lead screw

Clean the long lead screw, smooth rod and operating rod, and wipe them clean with cotton yarn.

11. Maintenance of lubrication part

①Clean the cooling pump, filter and liquid pan;

②Check whether the oil passage is unblocked, the oil holes, oil ropes, and linoleum should be clean and free of iron filings;

③Check the oil quality, keep it in good condition, complete the oil cup and bright oil window.

12. Maintenance of electrical parts

① Clean the motor and electrical box.

②The electrical equipment is fixed and tidy.

13. Clean up lathe accessories

Including the center frame, the tool post, exchange gear and chuck, etc.

14. Finishing the appearance of the lathe machine

① Install each cover.

②Check and fill up the screws, handles, and handle balls.

Matters needing attention in primary maintenance of lathe

1) Make full preparations. For example, prepare disassembly and assembly tools, cleaning devices, lubricating oil, plates for placing mechanical parts, and necessary spare parts.

2) Carry out maintenance work according to maintenance steps.

3) The parts that require disassembly, such as square tool holders, medium and small slides, tailstocks, etc., must be removed before cleaning, reinstalling, and adjusting.

4) The disassembled parts should be installed in groups. For example, the screws should be put on washers and screwed on the body, and the lead screw should be screwed on the nut to hang up.

5) Pay attention to civilized operation and organize the work position.