Automatic drill rod dismounting device

The utility model relates to the technical field of automatic equipment, in particular to an automatic drill rod dismounting device which comprises a locking mechanism, a rotating mechanism is fixedly arranged at the top of the locking mechanism and comprises a positioning frame, and mounting seats are fixedly connected to the four corners of the side wall of the positioning frame. According to the device, the output end of the first servo motor drives the gear to rotate, so that the toothed plate and the L-shaped locking plate on the top can be driven to move in the direction of the clamping plate, the L-shaped locking plate can clamp and position a lower drill rod, and then the output end of the third servo motor can drive the bidirectional lead screw to rotate; according to the drilling rod disassembling device, the two twisting plates are arranged on the upper portion of the drilling rod, so that the two twisting plates can be driven to clamp the drilling rod on the upper portion, then the two air cylinde