The invention relates to the technical field of
numerical control milling, and discloses an automatic
error prevention device and method for
numerical control milling
machining, which solves the problem of poor stability, and comprises a
machining table, a left-right moving rail is arranged at the top of the
machining table, a front-back moving rail is arranged at the top of the left-right moving rail, and a connecting
pipe is arranged at the bottom of the front-back moving rail. A milling connecting disc is arranged in the connecting
pipe, a milling disc is arranged at the bottom of the milling connecting disc, a plurality of clamping blocks are slidably connected to the bottom of the milling disc, tool bits are tightly attached to the interiors of the clamping blocks, a calibration box is detachably connected to the top of the table top, and a positioning cone is arranged in the calibration box. A calibration convex block is arranged at the top of the positioning cone; according to the device, the left-right moving rail is used for positioning the left-right moving
ball screw, the
servo electric cylinder is telescopic so as to drive the connecting
pipe to ascend and descend, and the
laser scanner is used for scanning materials, so that the milling accuracy is ensured, and the milling efficiency is improved.