Shaking on the lift platform feels too heavy

There may be four reasons for this. First, the adjustment of the lift table inserts is too tight. The trim should be adjusted appropriately. Second, the lubrication conditions of the guide rail and the screw nut pair are poor. The lubrication conditions of the guide rails should be improved. The third is that the verticality of the screw base facing the bed guide rail is out of tolerance. The verticality error of the bottom of the lead screw facing the guide rail surface of the bed should be adjusted and corrected. Fourth, the lifting screw is bent and deformed. Check the lead screw, if the bending deformation is not serious, it should be corrected; if the deformation is serious, replace the lead screw.

The table moves when feeding

There may be three reasons. One is that the cutting force is too large or the cutting force fluctuates too much. Appropriate cutting allowances should be used, dull tools should be replaced, interrupted cuts should be avoided, and cutting hard spots should be removed. Second, the gap between the screw and the nut is too large. The clearance between the screw and the nut should be adjusted to make it a suitable size. The third is that the clearance between the overrunning clutch on the end frame at both ends of the screw and the end face of the shaft frame is too large (use a ball screw pair). The axial positioning gap of the screw should be adjusted to make it a suitable size.

Periodic noise and rattle in the feed gearbox

There are four possible reasons for this problem. First, there are burrs and bumps on the gear tooth surface. Check and repair the tooth surface burrs and bumps, adjust the position of the gear unit, and maintain the correct meshing of the gears. The second is that the motor shaft and the transmission shaft are bent, causing poor gear meshing. At this time, the drive shaft should be checked and straightened, and the motor shaft should be repaired. The third is that the rotor and stator of the motor are not coaxial, causing uneven distribution of magnetic force. The motor can be debugged separately to check whether the rotor and the stator are coaxial, and the coaxiality error should not be greater than 0.05mm. Fourth, the positioning pin on the adjusting nut of the steel ball safety clutch is not pressed tightly. At this time, the positioning screw pin should be securely fixed in place and fixed with a wire.

The motor does not run

It is likely that the contacts of the relay stick together and do not clutch, resulting in a short circuit and damage to the motor. At this time, a new motor needs to be replaced.

Plates processed by double-end milling are not square

There may be a problem with the adjustment of the machine tool. At this time, the adjustment screws at the bottom of the machine tool should be adjusted and calibrated until a qualified plate is processed.

The router with pneumatic adjustment of the feed of the cutter shaft slows down or does not operate

There may be two reasons. The most common one is the air leakage of the cylinder, which greatly reduces its thrust. At this time, it is necessary to find the air leakage and repair it. If it is serious, the cylinder needs to be replaced; the second is that the sealing ring is damaged and the compressed air leaks. On the other side of the piston, the piston cannot work normally, and the sealing ring needs to be replaced at this time.

The foot pedal of the router is out of order

It may be caused by too many steps on the inner wire of the foot pedal or poor contact. At this time, it should be opened and the faulty wire should be reconnected.

Conclusion

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