BALL JOINT ASS'Y ASSEMBLING APPARATUS

A ball joint assembly assembling apparatus according to an embodiment of the present invention is an apparatus to assemble an inner ball joint part and a tie rod end part prepared in a steering system with each other. The ball joint assembly assembling apparatus comprises a main body part; a tie rod end part mounting part which is mounted on the main body part to move the position of the tie rod end part; an inner ball joint part mounting part which is mounted on the main body part and is assembled with the tie rod end part by rotating the inner ball joint part; a nut direction changing part for changing the position of a nut by inserting the temporarily coupled nut into the inner ball joint part and rotating the inserted nut when the inner ball joint part is mounted on the inner ball joint part mounting part; and a nut fixing part having an insertion space into which the nut separated from the nut direction changing part is inserted when the tie rod end part is changed in position by the tie rod end part mounting part, and completing coupling with the inner ball joint part by rotating the nut when the tie rod end part and the inner ball joint part are assembled with each other by the inner ball joint part mounting part.