Shear thickening-electrophoresis composite polishing method

A composite polishing and electrophoresis technology, which is used in grinding/polishing equipment, grinding workpiece supports, metal processing equipment, etc., can solve the problems of low polishing efficiency and poor applicability, and achieve the effect of high polishing efficiency.

Pending Publication Date: 2019-07-19
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the shortcomings of low polishing efficiency and poor applicability of existing polishing methods, the present invention provides a shear thickening-electrophoresis composite ultra-precision polishing method with high efficiency and low / no surface damage or subsurface damage

Method used

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  • Shear thickening-electrophoresis composite polishing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] refer to Figure 1 ~ Figure 4 , a kind of shear thickening-electrophoresis compound polishing method, when being used for processing tool tip, bearing part curved surface workpiece (as cemented carbide tool tip arc, bearing part curved surface), its processing steps are as follows:

[0033] 1) select the workpiece fixture (second electrode) 8, and install it on the mechanical arm 7;

[0034] 2) Clamping the tool 9 on the workpiece holder (second electrode) 8;

[0035] 3) configuring a polishing solution 10 with shear thickening-electrophoresis composite effect, and placing the polishing solution 10 in the infusion tube 1;

[0036] 4) Input the polishing liquid 10 onto the polishing disc 5, start the spindle 4 to drive the polishing disc 5, so that the polishing liquid 10 moves relatively on the polishing disc 5;

[0037] 5) Start the mechanical arm 7 for shear thickening effect control, and the DC power supply 3 for electrophoretic effect control. Under the action of th...

Embodiment 2

[0048] The present invention is used for processing planar workpieces (such as silicon materials, SiC, optical crystals, etc., and various difficult-to-process materials) whose dimensions are: length×width×height (such as 25mm×25mm×5mm)

[0049] Include the following steps:

[0050] 1) select the workpiece fixture (second electrode) 8, and install it on the mechanical arm 7;

[0051] 2) Clamping the workpiece 9 on the workpiece fixture (second electrode) 8;

[0052] 3) configuring a polishing solution 10 with shear thickening-electrophoresis composite effect, and placing the polishing solution 10 in the infusion tube 1;

[0053] 4) Input the polishing liquid 10 onto the polishing disc 5, start the spindle 4 to drive the polishing disc 5, so that the polishing liquid 10 moves relatively on the polishing disc 5;

[0054] 5) Start the mechanical arm 7 for controlling the shear thickening effect and the DC power supply 3 for controlling the electrophoretic effect. Under the acti...

Embodiment 3

[0057] When the present invention is used for processing size parameter and is: diameter 30mm, when the optical glass material plane workpiece of focal length 100mm, its operating steps are as follows:

[0058] 1) select the workpiece fixture (second electrode) 8, and install it on the mechanical arm 7;

[0059] 2) Clamping the workpiece 9 on the workpiece fixture (second electrode) 8;

[0060] 3) configuring a polishing solution 10 with shear thickening-electrophoresis composite effect, and placing the polishing solution 10 in the infusion tube 1;

[0061] 4) Input the polishing liquid 10 onto the polishing disc 5, start the spindle 4 to drive the polishing disc 5, so that the polishing liquid 10 moves relatively on the polishing disc 5;

[0062] 5) Start the mechanical arm 7 for controlling the shear thickening effect and the DC power supply 3 for controlling the electrophoretic effect. Under the action of the mechanical arm 7, the polished surface of the workpiece 9 contac...

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Abstract

The invention discloses a shear thickening-electrophoresis composite polishing method. The shear thickening-electrophoresis composite polishing method comprises the following steps of 1) selecting a workpiece clamp, and installing the workpiece clamp on a mechanical arm; 2) clamping the workpiece on a workpiece clamp; 3) polishing solution with the shear thickening-electrophoresis composite effect, and the polishing solution is placed in an infusion tube; 4) polishing solution is input to the polishing disk, and the main spindle is started to drive the polishing disk; and 5) starting the shearthickening effect the mechanical arm for controlling, the direct-current power supply for controlling the electrophoresis effect, polishing solution with the shear thickening-electrophoresis composite effect on surface of workpiece under the action of mechanical arm, and is used for providing a load; actively controlling the micro-rotation of the workpiece, meanwhile, electrophoretic effect of abrasive particles generated at two ends of power supply electrode, so that the height matching and material removal of the polishing solution and the surface of the workpiece are formed, and the shearthickening-electrophoresis composite polishing are realized. The invention provides a high-efficiency, and surface-damage-low / free or sub-surface damage shear thickening and the electrophoresis composite ultra-precision polishing method.

Description

technical field [0001] The invention belongs to the technical field of ultra-precision machining, and in particular relates to a shear thickening-electrophoresis composite polishing method. Background technique [0002] Ultra-precision machining technology is an important part of modern science and technology and is widely used in many fields. For example, the processing of hard, brittle and difficult-to-machine materials such as sapphire, monocrystalline silicon, and various functional ceramics, and the processing of bearing components; high precision, low damage, and aesthetics of various complex curved surfaces. Using ultra-precision machining technology, workpiece surfaces with low surface roughness, low / no surface damage or sub-surface damage can be obtained. [0003] Polishing is a kind of ultra-precision machining, which refers to the ultra-precision machining process that can reduce the surface roughness of the workpiece and improve the surface finish of the workpie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00B24B41/06B24B57/02
CPCB24B1/002B24B41/06B24B57/02
Inventor 李敏宋方增董婷刘明辉黄振荣唐成
Owner HUNAN UNIV OF SCI & TECH
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