公开(公告)号：US09993880B2

公开(公告)日：2018-06-12

申请号：US14829894

申请日：2015-08-19

Applicant: Simtek AG

Inventor： Norbert Seifermann

IPC: B23B31/20

CPC classification number: B23B31/201 ,  B23B2231/24 ,  B23B2260/106 ,  B23B2260/138 ,  Y10T279/17299 ,  Y10T279/17504

Abstract: A tool holder includes a basic body, in which a tool receiving region is located, a circular cylindrical clamping chuck having several joints and an external thread which has an external pitch angle, as well as a union nut having an internal thread which has an internal pitch angle. The union nut has a stopping face on the basic body or on the clamping chuck. The external pitch angle is different from the internal pitch angle.