Abstract: A machining center having a magazine for storing toolholders with tools mounted therein. The magazine includes a plurality of laterally open toolholder sockets for receiving one toolholder each with its axis parallel to the tool spindle axis of the machining center. Each toolholder socket on the magazine includes a locking member enabling the toolholder to be locked in its inserted position in the magazine thereby preventing accidental withdrawal of the toolholder during rotatable movement of the magazine. Each toolholder socket on the magazine includes flange members which engage the grooves on each toolholder thereby holding each toolholder in alignment enabling the correct position of each toolholder during transfer from the magazine to the spindle of the machining center.

Abstract: A work support or pallet is slidable onto a holding device on bearing surfaces along a rectilinear guide defining parallel angular paths. The holding device has two clamping slides which are urged transversely to the rectilinear guide to bear on a mating surface part of work support to locate it both in the longitudinal direction and transversely thereof. One slide has slanting teeth mating with teeth on the work support in such a manner that the clamping force components locate the work support with respect to both longitudinal and transverse directions and hold the work support against the bearing surfaces.

Abstract: The invention relates to a rotary index table comprising a stationary table housing, a table plate which is designed for reception of the workpiece and rotation by a drive means mounted on said table housing, a total of three Hirth-type serrations arranged concentrically with respect to one another, namely a first on said table housing, a second on said table plate, preferably in the same plane as said first Hirth-type serration, and adjacent said first two Hirth-type serrations a third Hirth-type serration that is substantially non-rotatable, but is designed for axial adjustment and simultaneous engagement with and disengagement from said first two Hirth-type serrations so as to lock and unlock the latter, said table plate being rotatable by said drive means when the first and the second Hirth-type serrations are in the disengaged state and securable at least in angular positions determined by the pitch of the Hirth-type serrations by a brake means.