Patent ID: 6364300
Filing Date: 2002-04-02
Classification: B23B,B25B

Abstract:
A clamp apparatus for clamping a workpiece by clamp arms, the workpiece positioned by inserting a positioning pin into a positioning hole formed in the workpiece, comprising:a body; a single driving mechanism configured to displace a rod member provided in said body along an axial direction of said body; said clamp arms rotatable by predetermined angles in accordance with the displacing action of said rod member; said positioning pin capable of being displaced along the axial direction of said body in accordance with the displacing action of said rod member; and a driving force-transmitting mechanism configured to operate said clamp arms and said positioning pin respectively, substantially simultaneously by transmitting driving force of said driving mechanism to said clamp arms and said positioning pin, respectively; wherein said driving force-transmitting mechanism comprises a holding fixture coupled to said rod member, engaging long grooves formed on said holding fixture and inclined by predetermined angles, engaging holes, formed in said positioning pin and extending substantially horizontally, a long groove provided on each of the clamp arms and movable pins engaged with said engaging long grooves, said engaging holes and said long groove, respectively.