Common faults and troubleshooting methods of hydraulic shearing machine
1. How to replace the pipeline seal of hydraulic shearing machine?
First, put the upper tool holder of the hydraulic shearing machine to thebottom dead center, then cut off the power supply of the machine tool, loosenthe pipe of the oil leakage part and take out the damaged seal, then apply alayer of butter in the joint groove, and then install the new seal into thegroove, tighten the pipe, and finally fill the hydraulic shearing machine withoil and reset it to enter normal use.
2. The hydraulic shearing machine does not generate working pressure?
1. Check whether the forward and reverse rotation of the shearing machinemotor and the oil pump is correct.
2. Clean the valve core of the shearing machine safety overflow valve.
3. Clean the two-position four-way solenoid valve of the shearing machinehydraulic system.
3. The return speed of the hydraulic shearing machine tool holder is slow
1. Refill the shearing machine with oil.
2. Check whether there are signs of oil seepage and oil leakage at theconnection parts of the shearing machine.
3. Check the nitrogen pressure in the accumulator of the shearing machine(normal nitrogen pressure is 4-5MPa, please fill nitrogen in time if it islower)
4. Hydraulic shearing machine blade flipping and gap adjustment
1. Hydraulic shearing machine blade flipping
Use the shear angle reduction button to adjust the upper tool holder to zerodegrees, then remove the workbench guide plate to loosen the screws that fix thelower blade, and take out the lower blade in sequence, then loosen the screwsthat fix the upper blade, take out the upper blade in sequence, and then flipeach blade, first install the upper blade, then install the lower blade. Checkwhether the interface between the blades is smooth and flat, and finally fix allthe blade screws and install the guide plate.
2. Hydraulic shearing machine gap adjustment
Use the shear angle enlargement and reduction buttons to place the upperblade on the machine tool and overlap the two ends of the lower blade by 3-5mm,and adjust the minimum gap value
Appendix:
| 6-12mm | 0.7mm shearing | Minimum value adjusted to 0.03-0.05mm |
| 16mm | 2mm shearing | Minimum value adjusted to 0.15-0.20mm |
| 20mm | 4mm shearing | Minimum value adjusted to 0.35-0.40mm |
| 25mm | 5mm shearing | Minimum value adjusted to 0.50-0.60mm |
| 30mm | 6mm shearing | Minimum value adjusted to 0.70-0.80mm |
After adjustment, fill the machine tool with oil once, the upper tool holderwill automatically reset, and the key button will be turned to the shearingposition for normal use.
