Derailleur guide block fork shaft hole processing positioning clamping device that shifts

The utility model discloses a derailleur guide block fork shaft hole processing positioning clamping device that shifts, including setting up supporting seat and the clamping unit of uniform annular setting on the lathe chuck at the lathe chuck center, the clamping unit is including radially installing the claw seat on the lathe chuck, the radial inward one end of claw seat is equipped with the clamping jaw, be equipped with on the radial inward terminal surface of clamping jaw and be used for blocking the draw -in groove of guide block of shifting, all the clamping unit the shaping is used for the shift circumferential location structure of guide block of circumferential location between the draw -in groove, the bearing includes the bearing body, the one end of bearing body is equipped with connector, the other end and is equipped with and is used for the shift locating hole of guide block of axial positioning, the shield fixed connection of connector and lathe chuck. The utility model discloses a derailleur