KR960013564A - Tool removal device of machine tool spindle - Google Patents

Abstract

The present invention relates to a device for mounting the tool on the machine tool spindle, and more particularly, to a tool tool removal device of the machine tool spindle that can simplify the structure to improve the productivity of the product and mass production of solid products.

The device is inserted into the main shaft, has a front / rear locking end on both ends, a pull stud of the tool holder is fixed to the full locking end, and a drawbar extension is inserted on the rear locking end. A drawbar for moving the collet forward or backward by moving it along the axial direction of the main shaft with a collet as possible and a locking portion and a protrusion located inside / outside the rear locking end to have a locking action with the inner / outer surface of the rear locking end of the collet. It is composed.

According to the present invention having the structure as described above, the tool demounting device of the machine tool spindle is easy to process and the production cost is reduced by simplifying the structure. In addition, by reducing the stroke of the draw bar through the simplification of the structure it has the effect of shortening the tool change time, the stability of the operation and the life of the machine.

Description

Tool removal device of machine tool spindle

As this is a public information case, the full text was not included.

2 is a structural diagram of a machine tool spindle equipped with a tool removing device according to the present invention,

3 is an explanatory diagram for explaining the clamping force formed when the tool is dismounted.

Claims (4)

An apparatus for attaching or detaching a tool holder to a distal end of a machine tool spindle having a hollow, the apparatus being inserted into an inner diameter of the spindle and having front and rear catching ends on both ends thereof, and a pole stud of the tool holder on the whole catching end. Is fixed to the insertion, on the rear engaging end is contractible expandable collet that is inserted by the leading end of the draw bar; And a catching part and a protrusion located at the inside / outside of the rear catching end to have a locking action with the inner / outer surface of the rear catching end of the collet, and having a draw bar moving along the axial direction of the main shaft to move the collet forward or backward. Tool demounting device of the machine tool shaft, including. 2. An air stripping device for a machine tool spindle according to claim 1, wherein a pressure pin for pressing the collet to the shaft center is installed on the inner circumferential portion of the spindle. The method of claim 1, wherein when the tool is mounted (clamping), the engaging portion of the draw bar is in contact with the inner side of the rear engaging end of the collet holding the tool holder at the entire engaging end to press the collet toward the rear end of the main shaft. Tool stripping device of machine tool spindle. The tool removing apparatus of claim 1, wherein the protrusion of the draw bar presses and expands the rear end outer circumferential surface holding the tool holder when the tool is detached (unclamped), thereby releasing the tool holder. ※ Note: The disclosure is based on the initial application.