Patent ID: 7337891
Filing Date: 2008-03-04
Classification: B23Q

Abstract:
1. A clamping apparatus for works comprising: a base; a rotary table which is rotatable relative to the base and rotatively moved to one station after another for various processes; and a pallet unit which is arranged in accordance with the processes and holds a work having a reference hole, wherein the pallet unit further comprising: a pallet which is provided with a plurality of positioning pins each to be inserted into the reference hole and corresponding to a plurality of kinds or types, and onto which the work is placed; a clamping mechanism part which holds the work by a pressing force of a spring; and a switching mechanism part which performs switching between the plurality of positioning pins, wherein the base is equipped with a clamp drive unit for operating the clamping mechanism part, a switch drive unit for operating the switching mechanism part, and a lift unit for moving the clamp drive unit and the switch drive unit toward and away from the pallet unit to engage with or disengage from the pallet unit.