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Anti-loose mechanism for locking knife tool used in cutting machine

A cutting machine, anti-loosening technology, applied in the direction of manufacturing tools, metal processing machinery parts, clamping, etc., can solve the problems of reduced tool locking reliability, increased thread fit clearance, hidden safety hazards, etc., to reduce thread clearance. Effect

Active Publication Date: 2008-10-01
中国机械总院集团云南分院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this locking mode, when the main shaft is repeatedly reversing, the fit gap between the threads will gradually increase, and it will be easy to loosen, which will reduce the reliability of tool locking and intensify the impact of the overall imbalance of the tool, resulting in safety. Hidden dangers and instability of processing quality

Method used

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  • Anti-loose mechanism for locking knife tool used in cutting machine

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Embodiment Construction

[0012] As shown in the figure, the present invention includes a butterfly spring 2, a pull rod 3, a sliding sleeve 4, a knife claw 9, and a handle 10 arranged in sequence in the machine tool spindle 1. One end of the pull rod is connected to the butterfly spring 2, and the other end is threaded. Connect the sliding sleeve 4, the other end of the sliding sleeve 4 is hooked with the broach claw 9 through the hook teeth 8 on the outer edge, and the handle 10 is snapped on the inside of the broach claw 9 through the boss 11 at the end. Inside the broach claw, a cylindrical taper hole 13 with a large diameter facing outward is provided at the end of the pull rod 3 connected to the sliding sleeve 4. The taper hole is equipped with a steel ball 5 tangent to the taper hole, and a top-facing The anti-loosening screw 6 of the steel ball, the anti-loosening screw 6 is assembled in the anti-loosening nut seat 7, and the anti-loosening nut seat 7 is installed in the inner cavity of the slid...

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Abstract

The invention relates to a locking and anti-loosing mechanism of a cutting tool used for a cutting machine, which is characterized in that: one end inside a pull rod (3) and connected with a sliding sleeve (4) is provided with a cylindrical cone hole (13) with a large caliber facing outwards; the cone hole port is provided with a steel ball (5) tangent with the cone hole; an anti-loosing bolt (6) withstanding the steel ball is arranged closely to the steel ball. The mechanism can lock a knife handle stably on a broach mechanism and can effectively prevent the cutting tool from getting loose; furthermore, the mechanism has the advantages of compact structure, relatively simple production and installation and can be widely applied to high speed rotating shaft systems.

Description

technical field [0001] The invention relates to the technical field of positioning and safety locking mechanism of a tool handle system in a spindle system of a high-speed machining machine tool. Background technique [0002] With the advancement of science and technology, the world's machine tool industry is developing towards high speed, high precision and high reliability. Due to the influence of centrifugal force, cutting load and vibration during high-speed cutting, the structural safety and high-precision dynamic balance of the tool system are crucial. Tool systems must be well balanced and safe. [0003] The tool system of a high-speed cutting machine tool is composed of a broach mechanism, a handle mechanism and a locking mechanism. When a high-speed cutting machine tool is working, most of them will rotate forward and reverse, and the load on the tool system will also change accordingly. The tool system of the prior art is usually provided with a pull rod in the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/12
Inventor 赵雄徐敏李广沈王永张崇刚罗宏罗庆丰张晓阳
Owner 中国机械总院集团云南分院有限公司
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