Bending device for the production of formed parts consisting of wire or strip sections

Claim 1

Apparatus for bending elongated metal such as wire or metal strip, of the type comprising a relatively stationary working plate, a drive shaft confined to rotation in shaft bearings which are spaced apart along the length of the drive shaft and are in fixed relation to said working plate, a tool slide to which a tool is attachable, a tool guide unit for support by said working plate and by which said tool slide is guided for reciprocation in opposite working directions that are transverse to the length of said guide shaft, cooperating means on said working plate and on the tool guide unit for confining the latter to adjusting displacement between said shaft bearings in directions parallel to said drive shaft and for fixing the tool guide unit in any selected position of such displacement, and a cam on said drive shaft, constrained to rotation therewith, that has a connection with said tool slide whereby the tool slide is reciprocated by rotation of said drive shaft, said apparatus being characterized by: A. said tool guide unit having at least one cam bearing secured therein through which said drive shaft extends; and B. said cam being fixed to a sleeve portion which (1) extends axially therefrom, (2) concentrically surrounds said drive shaft and is axially slidable along it, and (3) is rotatably received in said cam bearing for radial support of the cam in its rotation with the drive shaft.