Patent ID: 9616535
Date: 2017-04-11
CPC Classifications: B23Q,Y10T

Claim:
1. A positioning device comprising: a main body defining a receiving portion which extends through opposite ends of the main body, wherein the main body comprises: a drive member at least partially received in the receiving portion; and a pin assembly comprising: a mounting seat received in the receiving chamber, coupled to the drive member, and abutting against inner sidewalls of the mounting plate; and a resisting plate coupled to the mounting seat and received in the receiving chamber, wherein the resisting plate is configured for resisting the cover and defines an opening on an outer surface, the opening is configured for coupling with the inlet hole and the channel, a shaft portion is coupled to the resisting plate; wherein when the drive member drives the pin to move in the pin bushing, the pin presses inner sidewalls of the pin bushing to enlarge a diameter of the pin bushing such that the pin bushing is configured for positioning a workpiece.