Troubleshooting method of CNC machining center spindle:
In the mass production of multiple varieties, the vmc machine is the main processing equipment. Because the workpiece requires high precision and short delivery time, high equipment operation efficiency is the top priority of production and processing. Therefore, how to clean up the defects in time and operate the equipment correctly and effectively has become a big problem in operation. The spindle defect of CNC machining center is a more common problem. The following Chenghai CNC editor analyzes the common spindle defects of machining centers.
The precise part of the vmc machine is the main shaft. The defects of the main shaft box of the main shaft component include automatic tensioning tool holder equipment, automatic speed control equipment, and the accuracy of the rapid movement of the main shaft.
1. Abnormal movement caused by spindle operation. If the abnormal movement caused by the spindle operation becomes larger and larger, the vmc machine operation is suspended, and the spindle bearing can be judged to be damaged. Generally speaking, when the machining center is purchased for a few years, it will cause damage to the spindle bearing, especially under the conditions of heavy cutting of iron and steel castings.
2. The headstock cannot be moved. Check the coupling on the machine coordinate axis and tighten the screws on the coupling. Remove the pressure plate, check whether the pressure plate is scratched, adjust the pressure plate and the open space of the guide rail to ensure that the open space is 0. 02-0. 03 mm, check the spindle box insert, loosen the insert stop screw, and rotate the insert clockwise with a screwdriver Screws enable the coordinate axis to move flexibly, and lock the retaining screws when the feeler gauge cannot be inserted. Check whether the guide rail surface of the spindle box is scratched, and polish the scars on the guide rail surface with a fine emery cloth.
3. There is noise during the operation of the headstock. Improve the smoothing condition to satisfy the smooth oil volume. Adjust the bearing back cover so that it is pressed against the end face of the bearing and tighten the lock nut. Other vmc machines should also pay attention to the spindle belt. When the belt is loose, the vmc machine's main shaft will also make movement. Derailment of the belt will also pose a hazard to the equipment and reduce the service life. When using the vmc machine, please pay attention to the horizontal placement, to prevent the unevenness of the ground, there should be no shaking during production, and the main shaft must not be exposed to water.
