CNC lathe processing tool holder offside overshoot or turn not in place reason analysis? CNC tool holder is one of the most common auxiliary devices of CNC lathe, which enables CNC lathe to complete many or even all machining processes in one clamping of the workpiece, so as to shorten the auxiliary time of machining and reduce the error caused by installing the workpiece several times during the machining process, thus improving the machining efficiency and machining accuracy of the machine tool. As follows.
1, the tool holder offside over-shoot.
The mechanical cause of this failure is more likely, mainly because the back of the device does not work.
First of all, check whether the positioning pin is flexible and whether the spring is fatigue. At this time, the positioning pin should be repaired to make it flexible or replace the spring.
Secondly, check whether the ratchet wheel is disconnected from the worm gear, and if it is disconnected, the coupling pin should be replaced.
If the phenomenon of overshoot still occurs, it may be due to the tool is too long and heavy, should replace the positioning pin spring with a slightly larger modulus of elasticity.
2, the tool holder operation is not in place (sometimes the midway position suddenly stay).
This fault is mainly due to the misalignment of the contact of the sending disk and the contact of the elastic sheet, that is, the knife position signal mylar disk position fixed offset.
First of all, re-adjust the position of the sending disk and elastic sheet contacts and fixed firmly.
If the fault still can not be eliminated, it is possible that the sending signal disc clamping nut is loose, causing the position to move.