The troubleshooting of the CNC tool grinder grinding wheel device needs to be combined with specific fault phenomena, and the normal operation of the grinding wheel can be restored through observation, detection, adjustment, or replacement of components. The following are common faults and troubleshooting measures:
1、 The grinding wheel cannot rotate or has abnormal speed
1. Cause of malfunction:
Motor malfunction: Motor damage or poor circuit connection causing inability to start.
Loose or worn connecting components of the grinding wheel, such as the grinding wheel flange and drive belt, can affect the rotation of the grinding wheel.
2. Handling measures:
Check the motor: Use a multimeter to check if the motor is damaged and if the circuit connections are secure.
Check the connecting components: tighten the grinding wheel flange, adjust the tension of the drive belt, and replace worn parts if necessary.
2、 CNC tool grinder with excessive grinding wheel jumping or vibration
1. Cause of malfunction:
Unbalanced grinding wheel: The new grinding wheel has not undergone dynamic balance correction, or the old grinding wheel has uneven wear.
Unstable workpiece support during grinding process: unstable workpiece clamping or insufficient rigidity of the head and tail frame spindle.
Damaged grinding wheel spindle bearings: Bearing wear or excessive clearance can cause spindle vibration.
2. Handling measures:
Grinding wheel dynamic balance correction: perform static and dynamic balance correction on the new grinding wheel to ensure that the error is within the allowable range; Trim or replace the old grinding wheel.
Adjust workpiece support: Ensure stable clamping of the workpiece, improve the rigidity of the head and tail frame spindle, and reduce bearing clearance.
Replace bearings: If the grinding wheel spindle bearings are damaged, they should be replaced with new bearings in a timely manner.
3、 Abnormal grinding wheel dressing
1. Cause of malfunction:
Trimmer not functioning: Insufficient air pressure, deleted trimming program, or faulty trimmer.
There are still vibration marks after trimming: the trimming feed rate is too fast, the diamond pen tip is dull, or the trimming contour is inaccurate.
2. Handling measures:
Check the air pressure and repair program: Ensure that the air pressure meets the requirements and that the repair program has not been deleted.
Adjust the trimming parameters: reduce the trimming feed rate, replace the passivated diamond pen, and readjust the trimming contour.
4、 CNC tool grinder grinding wheel automatic balancer malfunction
1. Cause of malfunction:
The balancer cannot start: power failure, sensor damage, or internal failure of the balancer.
Poor balance effect: Improper setting of balancer parameters or severe wear of grinding wheel.
2. Handling measures:
Check the power supply and sensors: Ensure that the power supply is normal and the sensors are not damaged.
Adjust the parameters of the balancer: Adjust the parameters of the balancer according to the wear of the grinding wheel to ensure the balance effect.
Replace the balancer: If the internal fault of the balancer is severe, a new balancer should be replaced in a timely manner.
5、 CNC tool grinder with broken grinding wheel
1. Cause of malfunction:
Incorrect installation of grinding wheel: uneven clamping of grinding wheel flange or excessive clearance between grinding wheel and spindle.
Inappropriate grinding wheel material: The hardness, particle size, and other parameters of the grinding wheel do not match the processing material.
Excessive grinding force: feed rate too fast, grinding depth too deep, or insufficient coolant supply.
2. Handling measures:
Correct installation of grinding wheel: Ensure that the flange of the grinding wheel is evenly clamped and the gap between the grinding wheel and the spindle is appropriate.
Choose the appropriate grinding wheel material: Select the grinding wheel with suitable parameters such as hardness and particle size according to the processing material.
Adjust grinding parameters: Reduce the feed rate and grinding depth appropriately to ensure sufficient coolant supply.
