Automatic production machine

Claim 1

In an automatic production machine having a headpiece that is adapted to hold a workpiece and/or a work tool and a support for carrying the headpiece, the improvement that (a) said headpiece and said support are self-contained units which are independent of each other, (b) said support comprises (1) mounting means for supporting said headpiece for pivotal movement with respect to said support means about a transverse pivot axis and (2) drive means for pivoting said headpiece when the same is pivotably supported by said support, said drive means comprising a spindle, a spindle nut arranged on said spindle for axial movement relative thereto upon rotation of said spindle, and two trunnions on said nut and extending parallel to said pivot axis, (c) said headpiece comprises (1) mounting means capable of being pivotably received by said mounting means of said support, and (2) two extensions which, when said headpiece is pivotably supported by said support, extend into said support, each extension carrying a respective mounting for receiving a respective one of said trunnions, said extensions and the mountings carried thereby coacting with said drive means such that upon actuation of the latter, said headpiece is pivoted about said transverse pivot axis, and (d) the connection between said mounting means of said headpiece and said mounting means of said support as well as the connection between said extension of said headpiece and said drive means of said support are detachable connections and form the sole structural connections between said headpiece and said support, in consequence of which said support may be used in conjunction with any one of a plurality of headpieces each of which may, by establishing and breaking the two connections, as required, be interchanged for another headpiece.