Symptoms | reason | Countermeasures |
Chuck cannot move | Parts of the chuck are damaged. | Disassemble the chuck and replace it |
The sliding part is stuck. | Disassemble the chuck and take out the stuck part, repair or replace it with oilstone |
The rotary cylinder stops working. | Check the oil pressure system, such as the pressure relief valve |
The full stroke of the base jaw is insufficient | There are too many iron filings stored inside the chuck. | Clean up after decomposition |
The tie rod is loose | Re-tighten the lever |
There is slippage in the work | The clamping stroke of the base jaw is insufficient | Re-clamp the workpiece so that the position of the base jaw is at the midpoint of the stroke |
Insufficient clamping force of the chuck | Check whether the oil pressure set by the lock is reached |
The formed diameter of the upper jaw is different from the diameter of the workpiece | Redo it with the correct shaping method |
Too much cutting force | Recalculate the cutting force and whether it meets the specifications of the chuck |
Insufficient lubricant for base jaw lubrication | Relubricate the parts according to the lubrication process and then operate the chuck several times without the workpiece |
Rotational speed is too high | Reduce the speed to the standard to reduce the influence of centrifugal force |
poor precision | Chuck outer diameter deflection is too large | Correct the deflection of the outer diameter or end face and lock the screw |
External factors intervene between the base jaw and the upper jaw, such as dust | Remove jaws and clean completely |
The fixing screw of the upper claw is not locked | Lock with proper torque |
Excessive clamping force deforms the workpiece | Reduce the clamping force to an appropriate level, so that the machine can clamp the workpiece without deformation |
The height of the upper claw is too high, which deforms the upper claw or the fixing screw | Lower the upper jaw to standard height |
Improper or imperfect process of forming upper jaw | To determine if the forming ring is properly placed, check the oil pressure and the surface roughness of the forming part of the upper jaw. |