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Brush-assisted ball screw force rheological polishing method

A ball screw and brush technology, used in grinding/polishing equipment, surface-polished machine tools, and parts of grinding machine tools, etc., can solve problems such as poor rigidity, high surface thread requirements, complex mechanism shapes, etc.

Active Publication Date: 2021-09-07
ZHEJIANG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large length-to-diameter ratio of the ball screw, poor rigidity, complex shape of the mechanism, high surface thread requirements, and steps, grooves, etc., the lead error is prone to occur during the surface processing of the ball screw. , truncation error, etc.

Method used

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  • Brush-assisted ball screw force rheological polishing method
  • Brush-assisted ball screw force rheological polishing method
  • Brush-assisted ball screw force rheological polishing method

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] refer to Figure 1 ~ Figure 3 , a method of force-rheological polishing using a brush-assisted ball screw, said method comprising the following steps:

[0025] 1) Adding the mechano-rheological polishing fluid prepared by non-Newtonian fluid and abrasive grains in the polishing fluid tank;

[0026] 2) Clamp one end of the ball screw on the three-jaw chuck, and install the other end on the rotating bracket. Adjust the lifting system to make the brush on the polishing head contact the workpiece, turn on the diaphragm pump, and inject the polishing liquid into the hollow cavity of the polishing head through the flexible hose;

[0027] 3) During the processing, the polishing liquid is sprayed from the hollow cavity of the polishing head to the surface of the workpiece, and then the polishing liquid and the workpiece move relative to each other at a set speed, and ...

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Abstract

The invention relates to a brush-assisted ball screw force rheological polishing method. Force rheological polishing liquid prepared by using non-Newtonian fluid and abrasive particles is added in a polishing liquid tank; one end of a ball screw is clamped on a three-jaw chuck, and the other end is mounted on a rotating bracket; a lifting system is adjusted to enable a brush on a polishing head to be in contact with a workpiece; a diaphragm pump is opened, so that the polishing liquid is injected in a hollow cavity of the polishing head through a flexible hose; in the processing course, the polishing liquid is sprayed to the surface of the workpiece from the hollow cavity of the polishing head; then, the polishing liquid and the workpiece generate relative motion at a set speed; a shearing rheological effect is generated in a contact area; solid dispersion particles in the polishing liquid wrap the abrasive particles to form clusters; under high shearing speed, the excessive clusters can stop the polishing liquid from entering a screw thread roller way; and the brush enables the clusters to be in contact with the interior of the thread roller way fully to achieve high-quality polishing of the surface of the ball screw. The method can realize high-precision processing of the ball screw thread roller way.

Description

technical field [0001] The invention relates to the field of ultra-precision machining, and mainly relates to a brush-assisted rheological polishing method for ball screws. Background technique [0002] Ball screw is the most commonly used transmission element in tool machinery and precision machinery, and it has the characteristics of high precision, reversibility and high efficiency. Due to its small frictional resistance, ball screws are widely used in various industrial equipment and precision instruments. However, due to the large length-to-diameter ratio of the ball screw, poor rigidity, complex shape of the mechanism, high surface thread requirements, and steps, grooves, etc., the lead error is prone to occur during the surface processing of the ball screw. , truncation error, etc. [0003] Polishing processing technology has always been the main method of ultra-precision processing technology, which can be used to process complex surfaces. Reducing the surface rou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B29/02B24B41/02B24B41/04B24B41/06B24B47/12B24B47/20B24B57/02
CPCB24B29/02B24B41/02B24B41/04B24B41/067B24B47/12B24B47/20B24B57/02Y02P70/10
Inventor 吕冰海杨居儒周亚峰傅琳邓乾发
Owner ZHEJIANG UNIV OF TECH
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