Positioning device for induction heating of inner ring of knuckle bearing

The utility model discloses a positioning device for joint bearing inner ring induction heating, which comprises a main body, a connecting part used for being connected with a rotary driving part is formed on the main body, and a positioning end used for positioning an inner ring is formed at the other end, far away from the connecting part, of the main body. An embedding part used for being matched with an inner hole of the inner ring in an embedded manner and an abutting part used for being matched with the lower end face of the inner ring in an abutting manner are sequentially formed at the positioning end from top to bottom, and the abutting part is of a conical surface structure matched with an inner conical hole in the lower end face of the inner ring; therefore, the inner wall of an inner taper hole at the lower end face of the inner ring sleeved on the embedding part can be tightly attached to the abutting part of the conical surface structure. As the inner wall of the inner taper hole in the lower en