Anti-lock mounting tool for self-tapping screw sleeve

The utility model relates to an anti-lock mounting tool for a self-tapping thread sleeve, which belongs to the technical field of self-tapping thread sleeve mounting and comprises a tapping angle lever and a vertical rod fixedly arranged on the lower surface of the middle of the tapping angle lever, and a thread head used for being in threaded connection with the self-tapping thread sleeve is arranged at the lower end of the vertical rod. A sliding groove is formed in the outer wall of the vertical rod. The utility model has the beneficial effects that the four vertical calibration assemblies can ensure the coaxiality between the self-tapping screw sleeve and the mounting hole, and the telescopic rod and the vertical rod of each vertical calibration assembly can stretch out and draw back through the elasticity of the spring to ensure that the telescopic rod can be in contact with the mounting surface, so that the telescopic rod can be fixed to the mounting surface only when the telescopic rod is subjected to