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Magnetic field generation device of magnetorheological polishing equipment

A magnetic field generating device and magnetorheological polishing technology, applied in the directions of magnets, magnetic objects, electrical components, etc., can solve the problems of small polishing area, inability to complete complex curved surface polishing, etc., and achieve the effect of simple structure

Inactive Publication Date: 2015-11-04
YUHUAN CNC MACHINE TOOL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing magnetorheological polishing device can change the hardness of the grinding head by changing the magnetic field strength during polishing. Due to the limitation of the structure of the magnetic field generating device, the effective polishing area of ​​the magnetic field is small, and the material removal model of the entire polishing area is fixed. Complete polishing of complex surfaces

Method used

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  • Magnetic field generation device of magnetorheological polishing equipment
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  • Magnetic field generation device of magnetorheological polishing equipment

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Embodiment Construction

[0018] See figure 1 — image 3 , the magnetic field generating device 6 provided by the present invention is located below the barrel-shaped polishing solution tank 5, and includes two (or more) concentric ring-shaped magnetic poles with opposite polarities of two adjacent magnetic poles, and every two poles The annular magnetic poles with opposite properties form an electromagnetic pole group A, each annular magnetic pole includes an annular magnetic core 602, a magnetic core coil 603 wound on the outer surface of the annular magnetic core 602, the annular magnetic core 602 and the magnetic core coil 603 is fixed on the base plate 604, and a protective ring 606 is provided outside the outermost annular magnetic pole, and an outer coil 605 is arranged on the outer periphery of the polishing solution tank 5, and the lower plane of the outer coil 605 is flush with the upper plane of the annular magnetic pole .

[0019] The energization directions of the magnetic core coil 603 ...

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Abstract

The invention discloses a magnetic field generation device of magnetorheological polishing equipment. The magnetic field generation device comprises at least one electromagnetic pole group capable of generating a gradient magnetic field, wherein the electromagnetic pole group is composed of two electromagnetic poles opposite in polarity. According to the two electromagnetic poles forming one electromagnetic pole group, at least two concentric circles are set, and the adjacent annular magnetic poles are opposite in polarity. The magnetic field generation device is used for machining multi-degree of freedom movement workpieces through magnetorheological fluid, the outer surface(s) of one or more workpieces can be polished at the same time while the workpieces are clamped at a time, the outer surfaces of the workpieces can be planer or cambered or complex surfaces. By means of the magnetic field generation device of the magnetorheological polishing equipment, it is tested on trial that the problem that it is difficult to polish complex profile faces can be solved very effectively, the machining procedures of the workpieces can be reduced, and polishing efficiency is improved effectively.

Description

technical field [0001] The invention belongs to a magnetorheological polishing device, in particular to a magnetic field generating device of a magnetorheological polishing device. Background technique [0002] With the continuous advancement of modern information electronics technology and optical technology, more and more ultra-smooth components are used in the IT and electronics industries, such as sapphire substrates, single crystal silicon surfaces, mobile phone back covers, etc. The processing batches of such components are large , its surface should meet the requirements of ultra-smooth, high gloss, uniform color and no scratches. At present, the grinding and polishing machines on the market all adopt the principle of plane mutual grinding. The workpiece is stuck in the center wheel and polished under the grinding action of the upper and lower polishing discs. The limitation of this polishing method is that it can only process flat surfaces, not curved surfaces such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00H01F7/00
CPCB24B1/005H01F7/00
Inventor 许亮陈永福许君李智危峰
Owner YUHUAN CNC MACHINE TOOL
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