High-precision tool locking device of five-axis machining center and tool changing method

A locking device and high-precision technology, applied in the field of CNC machine tools, can solve problems such as affecting machining accuracy and spindle structure wear, and achieve the effect of preventing machining accuracy from falling and cutting tools from falling.

Inactive Publication Date: 2021-09-21
罗勇波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When there is a deviation in the installation of the tool, although it can be installed smoothly and locked in the spindle, it will cause wear to the internal structure of the spindle, which will affect the machining accuracy in the long run

Method used

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  • High-precision tool locking device of five-axis machining center and tool changing method
  • High-precision tool locking device of five-axis machining center and tool changing method
  • High-precision tool locking device of five-axis machining center and tool changing method

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Embodiment Construction

[0042] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings:

[0043] refer to figure 1 , figure 2 , Figure 7 , the end face of the main shaft 1 is provided with a snap ring 18 that conflicts with the tool 2, the snap ring 18 is provided with a slot 181, the tool 2 is provided with a block 21, and when the tool 2 is inserted into the main shaft 1, the block 21 is inserted into the slot 181 to ensure that the main shaft 1 The accuracy when inserting, reducing the wear of the tool 2 and the internal structure of the spindle 1. Simultaneously, a vibration-damping pad 182 is arranged between adjacent draw-in slots 181, which can reduce the impact of vibration on the mating of the draw-in blocks 21 and draw-in slots 181, reduce wear of the draw-in blocks 21 and d...

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Abstract

The invention discloses a numerical control machine tool, and particularly relates to a high-precision tool locking device of a five-axis machining center and a tool changing method. The high-precision tool locking device comprises a main shaft and a tool installed on the main shaft, an inner cavity is formed in the main shaft, a locking device and a driving device are arranged in the inner cavity, and the driving device drives the locking device to act to lock the tool; the driving device comprises a pressure medium device, a clamping ring capable of abutting against the tool is arranged on the end face of the front end of the main shaft, a plurality of clamping grooves are formed in the clamping ring, a plurality of clamping blocks matched with the clamping grooves are arranged on the tool, and an anti-vibration pad is arranged between every two adjacent clamping grooves; and the locking device comprises a first locking part and a second locking part, the locking effect on the tool can be enhanced through the two locking parts, when one locking part loses efficacy, the other locking part still locks and fixes the tool rapidly, and the tool can be prevented from falling off.

Description

technical field [0001] The invention belongs to the technical field of numerical control machine tools, and in particular relates to a tool locking device of a five-axis machining center and a tool changing method thereof. Background technique [0002] The tool is installed on the main shaft of the machining center, and the tool is designed as a replaceable structure, so that the machining center can realize different processing methods by changing the tool, and perform precision machining on the workpiece. [0003] The Chinese invention patent with the application number 201480083399.2 discloses an automatic tool changer for CNC machine tools. The tool changer arm picks up the tool from the tool magazine and the spindle and rotates through 180° to complete the tool position exchange. After that, the spindle needs to be replaced After the tool is locked, it can be processed. [0004] The Chinese invention patent with the application number 201680036465.X discloses a tool sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/12B23Q17/00
CPCB23Q3/12B23Q17/00
Inventor 不公告发明人
Owner 罗勇波
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