Positioning and clamping apparatus

A positioning and clamping apparatus comprising:

• a locating pin provided on a base having a contact surface contacting with a panel material, and protruding from the contact surface to penetrate through a through-hole formed in the panel material;
• a clamp arm provided in a slit formed in the locating pin, and moving between an escaping position of entering into the slit and a clamping position where a clamp portion comes out from the slit and clamps the panel material along with the contact surface;
• a reciprocating cam having a cam hole formed so as to contact with a drive pin fixed to a distal portion of the clamp arm, and moving, between the escaping position and the clamping position, the clamp arm via the drive pin;
• a cam member fixed to the base so as to penetrate through an oscillating groove formed in the clamp arm, and causing the clamp arm to enter into the slit when the clamp arm reaches the escaping position and causing the clamp portion to come out from the slit when the clamp arm reaches the clamping position;
• a pusher reciprocally incorporated into the base along the locating pin between a removal position of protruding from the contact surface to remove the panel material from the locating pin and a retreat limit position of entering into the contact surface;
• cam drive means for driving the reciprocating cam between the escaping position and the clamping position;
• and
• pusher driving means for driving the pusher between the removal position and the retreat limit position.