Patent ID: 8821084
Filing Date: 2014-09-02
Classification: B23B,Y10T

Abstract:
1. A tool holding module, comprising: a first one-piece component, comprising: a second one-piece component comprising a tool rod including a second thread and being coupled to the first thread portion of the fixture seat to enfold the fixture head, the tool rod further including a first inner surface and a second inner surface that are formed on an internal wall thereof and respectively corresponding to the first outer surface and the second outer surface, and including a first butting surface and a second butting surface inside and respectively corresponding to the first top surface and the second top surface, whereby the tool rod, the fixture head and the fixture seat are firmly coupled via close contact of the first outer surface and the first inner surface, the second outer surface and the second inner surface, the first top surface and the first butting surface, and the second top surface and the second butting surface, and whereby a distal end of the tool rod enfolds the first outer surface of the fixture seat at the position having the first diameter to promote concentricity of the fixture seat and the tool rod.