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Machining magnetic field shielding method and device for permanent magnet contained workpiece

A permanent magnet and machining technology, which is applied in shielding, metal processing equipment, metal processing machinery parts, etc., can solve the problems of undisclosed split-type shielding devices and methods, and improve precision and processing quality, disassembly and assembly Convenience, effect of avoiding looseness and vibration problems

Inactive Publication Date: 2017-05-31
ZHUZHOU GOFRONT EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neither is used to solve the problem of machining accuracy, and the above-mentioned patents do not disclose split-type shielding devices and methods

Method used

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  • Machining magnetic field shielding method and device for permanent magnet contained workpiece
  • Machining magnetic field shielding method and device for permanent magnet contained workpiece
  • Machining magnetic field shielding method and device for permanent magnet contained workpiece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 , figure 2 with image 3 As shown, the magnetic field shielding device includes a shielding cover 1 and an end cover 2, the shielding cover 1 includes a shielding cylinder 11, a rubber layer 12 and a silicon steel cylinder 13, and the end cover 2 includes a shielding cover 21, an end cover rubber layer 22, a silicon steel cover 23 and assembly Hole 24. Wherein the silicon steel cylinder 13 and the silicon steel cover 23 are formed by stacking a plurality of thin silicon steel sheets. The shielding cylinder 11 and the shielding cover 21 can be made of pure iron and low carbon steel, iron-silicon alloy, iron-aluminum alloy, iron-silicon-aluminum alloy, nickel-iron alloy, iron-cobalt alloy, soft ferrite, non It is made of magnetic materials such as crystalline soft magnetic alloy and ultrafine crystal soft magnetic alloy.

[0039]The silicon steel cylinder 13 and the shielding cylinder 11 are vulcanized into a whole through the rubber layer 12, and th...

Embodiment 2

[0049] The difference from Embodiment 1 is that the shielding cover 1 only includes the silicon steel cylinder 13 without the shielding cylinder 11, and the silicon steel sheets in the silicon steel cylinder 13 are passed through by a screw, and the two ends of the screw are tightened with nuts, so as to press Tight silicon steel sheet. The end cover 2 also only includes a silicon steel cover 23 without a shielding cover 21, and the silicon steel sheets in the silicon steel cover 23 are passed through by a screw, and are tightened with nuts at both ends of the screw. That is to say, the magnetic field shielding is performed only once on both the shielding case 1 and the end cap 2 . This embodiment can be applied to working conditions where the magnetic field strength generated by the permanent magnet workpiece 5 is not strong, and can save the manufacturing cost of the magnetic field shielding device.

Embodiment 3

[0051] The difference from Embodiment 1 is that neither the shielding case 1 nor the end cap 2 is a split structure, but the cross section of the shielding case 1 and the end cap 2 is a complete ring. And the shielding cover 1 and the end cover 2 are vulcanized into a whole, or welded into a whole. This embodiment can be applied in the working condition that one end of the permanent magnet processing part 5 is easy to disassemble. On the part 5, install one end of the permanent magnet processing part 5 and get final product.

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PUM

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Abstract

The invention discloses a machining magnetic field shielding method and device for a permanent magnet contained workpiece. When the permanent magnet workpiece is machined, the part containing a permanent magnet is covered with a shielding cover, magnetic induction lines emitted by the permanent magnet in the permanent magnet workpiece form closed loop circuits between the shielding cover and the permanent magnet workpiece, and therefore the magnetic field produced by the permanent magnet workpiece is shielded. The permanent magnet workpiece is sleeved with the magnetic field shielding device, and therefore the negative effects of the magnetic field can be shielded when the permanent magnet workpiece is machined in a turning or milling or grinding manner, and the machining precision and the machining quality of the permanent magnet workpiece and the precision of three-dimensional loss metering are improved.

Description

technical field [0001] The invention relates to a magnetic field shielding method and device, in particular to a magnetic field shielding method and device for permanent magnet parts during mechanical processing. Background technique [0002] When the permanent magnet workpiece is processed by turning, milling or grinding, the permanent magnet workpiece will generate a magnetic field due to the permanent magnet contained in the permanent magnet workpiece. Therefore, when the machine tool is processing the permanent magnet workpiece, the permanent magnet workpiece will generate a magnetic force on the machine tool, which will affect the precision and processing quality of the machine tool for turning, milling or grinding the permanent magnet workpiece. Therefore, a set of magnetic field shielding device is needed to change the direction of the magnetic field generated by the permanent magnet workpiece to achieve the effect of shielding the magnetic field of the permanent magn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B55/00B23Q11/00G12B17/02
CPCB23Q11/00B24B55/00G12B17/02
Inventor 张锦何业建李庆锋晏斌李周林
Owner ZHUZHOU GOFRONT EQUIP
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