Fixing device for self-breaking screw plug production

The utility model discloses a fixing device for producing a self-breaking screw plug. MOUNTING DISK, a through hole is formed in the center of the top of the mounting disc; spacing adjusting assemblies are arranged on the periphery of the top of the mounting disc. A square connecting column is fixed to the top of the distance adjusting assembly through a bolt. A clamping head is fixed to the top of the square connecting column through welding. A trapezoidal sliding rail is fixed in the square connecting column through a bolt; trapezoidal sliding blocks are slidably connected to the tops of thetrapezoidal sliding rails and fixed to the periphery of the driving disc through bolts, a telescopic air cylinder is fixed to the center of the bottom of each trapezoidal sliding block through a bolt, and the telescopic end of each telescopic air cylinder penetrates through the corresponding through hole to be fixed to the driving disc. The self-breaking screw plug fixing device is novel in structure and ingenious in con