Numerical control vertical milling and turning machine spindle anti-collision mechanism

The utility model relates to the technical field of main shaft collision avoidance, in particular to a numerical control vertical turning and milling machine main shaft collision avoidance mechanism which comprises a milling machine, a main shaft is arranged on the right side of the top end of the milling machine, a chuck is arranged on the inner side of the right end of the main shaft, and a workpiece is in contact connection with the inner side of one end of the chuck. A first fixing block is fixedly connected to the outer side of the bottom end of the cylindrical shell, an alarm horn is fixedly connected to the outer side of the bottom end of the first fixing block, a second fixing block is fixedly connected to the lower side of the right end of the cylindrical shell, and a laser rangefinder is fixedly connected to the outer side of the bottom end of the second fixing block. The inner side of one end of the cylindrical shell is fixedly connected with a first cylindrical plate, theouter side of the left end