Patent ID: 6561086
Filing Date: 2003-05-13
Classification: B30B

Abstract:
An automatic aligning pressing apparatus comprising:an apparatus main body to be mounted to an automatic device; an air bearing mounted to said apparatus main body and including a bearing surface in a shape of a partial recessed spherical surface at a tip end of said air bearing; an aligning member which includes a borne surface in a shape of a partial projecting spherical surface having a same curvature as said bearing surface of said air bearing and a head mounting face to be mounted with a pressing head for a workpiece and which is supported by said air bearing with said borne surface fitted with said bearing surface; an air supply flow path for supplying compressed air to said bearing surface of said air bearing to float said aligning member from said air bearing; a lock mechanism for pressing and locking said aligning member against and to said bearing surface of said air bearing; and a cylinder driving portion for driving said lock mechanism, wherein said lock mechanism has a piston rod which passes through said air bearing and said aligning member in a position of central portions of said bearing surface and said borne surface in a freely inserted state and which is moved forward and rearward by said cylinder driving portion, a flange-shaped locking portion formed at a tip end of said piston rod, a depression which is formed in said aligning member and in which said locking portion is fitted, and contact faces in shapes of partial spherical surfaces are formed at said locking portion and said depression, the contact face of the locking portion comes into contact with the contact face of the depression in locking, and said contact faces are formed concentrically with said borne surface.