Index-werke Komm.-ges. Hahn & Tessky

Index-werke Gmbh Co. Kg Hahn & Tessky

Index-werke Kg

Gunther Trautmann

Helmut F Link

Albert Herrscher

In a method and a multiple-spindle automatic lathe for machining both sides of workpieces, in order to increase the number of spindle positions available for machining the workpieces, it is suggested that the spindle drum be indexed in single steps, that the feeding of raw workpieces, the removal of finished workpieces and the changeover of half-finished workpieces be carried out in a single spindle position of the spindle drum and that the feeding of raw workpieces and the removal of finished workpieces occur alternately after each drum indexing.

Method and apparatus for machining both sides of workpieces

Multiple-spindle automatic lathe

A clamping mechanism for mounting a tool holder or receiving sleeve having a cylindrical outer contour to a machine tool having a bed, the clamping mechanism comprising a slide mounted for sliding movement on the bed and having a concave surface for supporting the cylindrical outer contour of the tool holder sleeve, an apparatus for securing the slide on the bed, and a clamp assembly including a clamping bracket circumferentiallyspanning the tool holder sleeve, an arrangement for detachably securing the clamping bracket to the slide, and a threaded structure for tightening the clamping bracket around the tool holder sleeve.

Means for attaching a tool receiving sleeve to a concave slide of a

Method for producing threads and machine tool for thread milling, wherein in order to avoid high cutting speeds and also to produce short millings, a milling cutter is used, which comprises several teeth forming at least one thread, rotates at the point of engagement in the opposite direction to the workpiece, encompasses the latter during the production of an external thread with substantial radial play or in the production of an internal thread is encompassed by the workpiece with substantial radial play, and wherein the advance s of the milling cutter meets the following condition:

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Kirchheim-Nabern, Germany

Gunther Trautmann