Driver for internal ball joint

The utility model discloses a driver for an internal ball joint. The driver comprises a sleeve, wherein a sleeve hole is formed in one end of the sleeve; four radial threaded holes are formed in the sidewall of the end, with the sleeve hole, of the sleeve, and are uniformly distributed along the circumference; a strong-strength jackscrew is arranged in each threaded hole in a matched way; a square surface is arranged outside the sleeve, and can be conveniently pulled by a wrench; the diameter of an inner hole of the sleeve is smaller than that of the sleeve hole; the square surface is positioned at the other end of the sleeve. When the driver is used, the sleeve is sleeved outside a ball arm from one end of the ball arm, and moves towards the other end of the ball arm to sleeve the sleeve hole in the end of the sleeve outside a ball cover body, the strong-strength jackscrews are pressed against a plane outside the ball cover body, and the square surface at the other end of the sleeve is rotated by the wrench, so that the ball cover body can be disassembled from or assembled on an automobile chassis. The rotating part of the wrench is kept away from the internal ball joint. The driver has the advantages of simple structure, convenience in the assembly and disassembly of the internal ball joint, time saving, labor saving and high working efficiency.