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Grinding polishing method based on magnetic rheology effect and its polishing device

A technology of magnetorheological effect and magnetorheological fluid, which is applied to polishing compositions containing abrasives, grinding/polishing equipment, polishing compositions, etc., which can solve the problem that the residence time of the movement speed of free abrasive particles cannot be effectively controlled and affects Accuracy and efficiency of ultra-smooth surface grinding, processing accuracy and low efficiency, etc.

Inactive Publication Date: 2009-05-13
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The existing problems in the grinding and polishing process of free abrasives are: the speed, trajectory, and residence time of free abrasive particles between the grinding disc and the workpiece cannot be effectively controlled, and the free abrasive between the grinding disc and the workpiece interface is only relatively small. Large-sized abrasive particles produce processing effect, due to the effect of relative motion, a considerable part of the smaller-sized abrasive particles have not interfered with the surface of the workpiece, that is, they are separated from the interface between the grinding disc and the workpiece, resulting in low processing accuracy and efficiency
For grinding and polishing, which uses free abrasives for processing, the key to improving the processing efficiency and processing accuracy of free abrasives is how to ensure a uniform abrasive concentration distribution on the contact interface between the grinding disc and the workpiece, and how to maintain this state stably for a long time , the existing mechanical and chemical grinding methods are difficult to achieve this, thus affecting the precision and efficiency of ultra-smooth surface grinding

Method used

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  • Grinding polishing method based on magnetic rheology effect and its polishing device
  • Grinding polishing method based on magnetic rheology effect and its polishing device
  • Grinding polishing method based on magnetic rheology effect and its polishing device

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Embodiment 1

[0059] Figure 10 Shows the specific structure of the present invention for ultra-smooth plane grinding and polishing, consisting of an arrayed magnetic plane grinding tool 1-1 or a distributed magnetic plane grinding tool 1-2, a conductive copper ring slider assembly 9, a DC power supply 1- 1-3 etc. constitute a macro plane grinding tool, the grinding tool is connected with the grinding disc spindle 10 of the machine tool, the grinding tool spindle motor 12 realizes the rotary motion of the plane grinding tool through the grinding tool spindle transmission mechanism 11, and is installed on the body stand 8 The X-direction feeding system 13 of the grinding tool and the Z-direction feeding system 14 of the grinding tool can realize the X-direction and Z-direction feeding of the magnetic plane grinding tool 1-1. The workpiece 2-1 with a flat processing surface is installed on the rotary table 5, the rotary table 5 is connected with the rotary table spindle 6, the rotary table sp...

Embodiment 2

[0061] Figure 11 Shows the specific structure of the present invention for ultra-smooth curved surface grinding and polishing processing, the curved surface magnetic grinding tool 1-3 can realize rotation under the drive of the grinding tool spindle motor 12, and the workpiece 2-3 whose processing surface is a non-axisymmetric curved surface is installed On the workbench 5 with 3-axis numerical control interpolation movement, the X-direction feed system 13, the Z-direction feed system 14 and the Y-direction feed system 16 realize the curved surface magnetic grinding tools 1-3 and The processing surface is an interpolation movement between workpieces 2-3 with a non-axisymmetric curved surface, the computer 18 transmits processing data to the numerical control system 17, and the grinding and polishing liquid (magnetorheological fluid and abrasive mixed liquid) is injected from the grinding and polishing liquid nozzle 15 3. Go to the interface between the tool and the workpiece ...

Embodiment 3

[0063] The present invention can also grind and polish a convex curved surface or a curved surface with a combination of convex and concave, and its implementation process is similar to the above process.

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Abstract

The present invention discloses a grinding-polishing method based on magnetorheological effect. Said method is characterized by that in the magnetorheological fluid a kind of free abrasive material is added, used as grinding-polishing liquor and injected into the between of magnetic body and workpiece surface, under the action of magnetic field the ferromagnetic particles in the magnetorheological fluid can be arranged by strings to cover the abrasive material pacticles and can be constrained in the end face of magnetic body to form magnetic grinding brush, said magnetic grinding brush can be used for grinding-polishing workpiece surface. Said invention also provides a grinding-polishing device for implementing said grinding-polishing method. Said device includes grinding tool mounted on main shaft connected with motor and working table for mounting workpiece.

Description

technical field [0001] The invention relates to a grinding method for a plane and a curved surface, in particular to a grinding and polishing method based on a magneto-rheological effect. The present invention also relates to a device used in the magneto-rheological effect grinding and polishing method. Background technique [0002] With the electronicization of information and the high-speed and large-capacity of photoelectric signal transmission, the demand for optoelectronic products that integrate electronic technology and optical technology is increasing, such as CD / DVD optical reading head, optical / electrical (PD) in optical fiber communication And electrical / optical (LD) signal converters, projectors, laser printers, molecular lasers, etc., one of the core components of optoelectronic products is the optical components (lenses, mirrors) used in the optical path, and the manufacturing methods of optical components mainly include ceramics Single-piece small-batch mecha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B1/00B24B29/02C09G1/18C09G1/02
Inventor 阎秋生高伟强路家斌
Owner GUANGDONG UNIV OF TECH