Tool clamping chuck

Abstract

The invention relates to a tool clamping chuck. The tool clamping chuck comprises a toolbar, a collet chuck and a nut; the collet chuck is divided into a front section and a rear section, wherein the rear section is clamped into the toolbar; external threads A are arranged in the front part of the toolbar; a through hole is arranged in the axial center of the nut, and internal threads A are arranged in the rear section of the through hole; the nut is arranged at the front end of the collet chuck and is connected with the external threads A in the toolbar through the internal threads A; the outer surface of the front section of the collet chuck is a cone surface in which external threads B are arranged; an inner cone hole B, which is equipped with internal threads B and adapted to the cone surface of the front section of the collet chuck, is formed in the front section of the through hole; the front section of the collet chuck is connected with the front section of the through hole in the nut through threads; and the internal threads B in the front section of the through hole in the nut are in the direction opposite to the internal threads A in the rear section of the through hole, and while the threads in the rear section of the through hole in the nut are in the direction opposite to the rotating direction of the tool clamping chuck. The tool clamping chuck adopting the scheme above has the advantages that the threaded connections in two parts enable stable connection of all components of the clamping chuck, and the clamping force and stability of the clamping chuck are effectively improved.

Description

technical field [0001] The invention relates to the field of machine tool clamping components, in particular to a tool clamp. Background technique [0002] The currently used tool chuck generally includes a tool holder, a collet, and a nut. The handle of the tool is inserted into the collet, the collet is clamped in the tool rod, the nut is threaded with the tool rod, and the nut tightens the collet during the tightening process. Pushing forward, the collet is forced to shrink in diameter, clamping the shank of the tool. When working, the tool holder rotates at a high speed, and the tool holder will generate large vibrations. Under long-term work, the nut will loosen due to vibration, and the clamping force of the tool holder on the tool will be reduced, which will affect the normal operation of the tool holder. , affecting the normal work of the tool. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a to...

AI Technical Summary

Problems solved by technology

When working, the tool holder rotates at a high speed, and the tool holder will generate large vibrations. Under long-term work, the nut will loosen due to vibration, and the clamping force of the tool holder on the tool will be reduced, which will affect the normal operation of the tool holder. , affect the normal work of the tool

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