What are some common oil pump faults and treatment methods for CNC bending machines?

Some common problems of oil pump noise and vibration (too fast heating) and oil pump damage in CNC bending machine:

What are some common oil pump faults and treatment methods for CNC bending machines?

CNC bending machine

1 The oil pump suction line leaks or the oil tank liquid level is too low, causing the oil pump to empty

2. The oil temperature is too low and the oil viscosity is too high, resulting in high oil absorption resistance

3. The suction port oil filter is clogged and the oil is dirty

4. Pump damage (injury during pump installation) caused by rough operation

5. Coupling installation problems, such as excessive axial tightening, the motor shaft and the oil pump shaft are not concentric

6. ​​After the pump is installed, it reverses for a long time or does not refuel during the test machine

7. The outlet high pressure oil filter is blocked or the flow rate is not up to the standard

8. The oil pump sucks (there is oil, but there is air at the suction port of the oil pump)

9. If it is a plunger pump, the height of the return line may be set too low

10. If it is a HOEBIGER oil pump, it may be deflated

11. The oil temperature is too high, causing the viscosity to decrease (within 60°C)

12. The hydraulic oil contains water, which will cause the high-pressure filter element to be blocked and damaged

13. When Anhui Yongya adjusts the gap between the upper and lower molds, the slider must stop at the top dead center. The gap must be adjusted from large to small. Initially adjust the gap between the upper and lower molds. Generally, it can be about 1 mm larger than the plate thickness. The gap must be greater than the plate thickness to avoid crushing the mold due to no gap.

14. When two or more people are bending, one person must be designated to step on the brake, and the power must be cut off when leaving the machine tool.

15. Do not do unilateral and single-point load work.

16. The sheet material must be compacted when bending, so as to prevent the sheet material from curling up and hurting people during bending.

17. Do not stack sundries and measuring tools between the upper and lower molds.

18. The power supply must be cut off when adjusting the sheet metal die, and the operation should be stopped.

19. Correctly select the bending mold, the upper and lower molds should be fastened in the correct position, and the upper and lower molds should be installed to prevent external injuries.