Patent ID: 6584661
Filing Date: 2003-07-01
Classification: B21D,Y10T

Abstract:
A hemming machine comprising:a single bending block having thereon a preliminary bending surface and a final bending surface: a lower block for placing thereon an outer panel with a flange, an inner panel being positioned on said outer panel; and a mechanism for moving said bending block with respect to said lower block, said mechanism moving said bending block in an arcuate way around a first axis such that a force with a relatively large horizontal component is applied to said flange of said outer panel when said preliminary bending surface of said bending block bends said flange in a preliminary bending process, said mechanism moving said bending block in another arcuate way around a second axis different from said first axis such that another force with a relatively large perpendicular component is applied to said flange of said outer panel when said final bending surface of said bending block bends said flange in a final bending process which is carried out subsequent to said preliminary bending process; wherein said mechanism comprises: mobile frames; first driving means for moving said mobile frames vertically with respect to said lower block between an upper position and a lower position; a holder which is connected to said mobile frames through link members and to which said bending block is attached; and second driving means, operable independently of said first driving means, for moving said holder upward and downward in an arcuate manner with respect to said mobile frames.