A bipolar electrode device for EDM hole machining of insulating ceramic materials

A bipolar electrode and insulating ceramic technology, which is applied in the field of mechanical processing, can solve the problems of poor stability and inability to continuously process the EDM holes of insulating ceramics, and achieve the effects of improved stability, simple structure and stable work

Active Publication Date: 2016-05-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that the existing electrical discharge hole processing of insulating ceramics cannot be continuously processed and has poor stability, thereby providing a bipolar electrode device for electric discharge hole processing of insulating ceramic materials

Method used

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  • A bipolar electrode device for EDM hole machining of insulating ceramic materials
  • A bipolar electrode device for EDM hole machining of insulating ceramic materials
  • A bipolar electrode device for EDM hole machining of insulating ceramic materials

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specific Embodiment approach 1

[0016] Specific implementation mode one: the following combination figure 1 Describe this embodiment mode, a bipolar electrode device for electric discharge hole machining of insulating ceramic materials described in this embodiment mode, it includes a rotating spindle 4, a first bipolar electrode 1, a second bipolar electrode 2, an insulating Set 3, insulation commutation block 5 and polarity conversion brush 6;

[0017] The first bipolar electrode 1 and the second bipolar electrode 2 are respectively fixed on both sides of the insulating reversing block 5 to form a whole, which is fixedly connected to the rotating main shaft 4 through the insulating sleeve 3;

[0018] The positive terminal of the polarity conversion brush 6 is connected with the positive terminal of the pulse power supply, and the negative terminal of the polarity conversion brush 6 is connected with the negative terminal of the pulse power supply;

[0019] The polarity switching brush 6 is an annular struc...

specific Embodiment approach 2

[0021] Embodiment 2: This embodiment further limits the bipolar electrode device for EDM hole machining of insulating ceramic materials described in Embodiment 1. In this embodiment, it also includes an adjustment gasket 7, the first Between the bipolar electrode 1 and the insulating commutation block 5 , and between the second bipolar electrode 2 and the insulating commutation block 5 , an adjusting gasket 7 is arranged.

specific Embodiment approach 3

[0022] Embodiment 3: This embodiment further limits the bipolar electrode device for EDM hole machining of insulating ceramic materials described in Embodiment 1. In this embodiment, the first bipolar electrode 1 and the second The shapes of the bipolar electrodes 2 are both half cylinders.

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Abstract

The invention discloses a bipolar electrode device for electric spark hole machining for an insulating ceramic material, which relates to the field of machining, and aims at solving the problems of incapacity of continuously machining and bad stability of the existing material electric spark hole machining for insulating ceramics. According to the bipolar electrode device disclosed by the invention, insulating ceramic machining is realized by virtue of spark discharge between bipolar electrodes, and hole machining can be carried out on various insulating ceramics difficult to machine; during a hole machining process for insulating ceramics, due to the periodic polar conversion of the bipolar electrodes I and II, the two bipolar electrodes are equal in loss, and continuous electric spark hole machining for insulating ceramics is realized; moreover, the bipolar electrode device disclosed by the invention is simple in structure and stable in working, and the stability is increased by 20% on year-on-year basis. The bipolar electrode device disclosed by the invention is suitable for the field of machining.

Description

technical field [0001] The invention relates to the field of machining. Background technique [0002] With the increasing application of insulating ceramic materials in various fields, the requirements for the size and shape accuracy of parts manufactured from these materials are also getting higher and higher. However, the size of insulating ceramic materials changes greatly during sintering, so the sintered ceramics usually require further processing before they can be used. However, since the insulating ceramic crystal is composed of chemical bonds between cations and anions or anions and anions, it has great hardness and brittleness. It is not only difficult to process by traditional mechanical processing methods, but also difficult to achieve the required processing accuracy. Require. The machinability of EDM materials mainly depends on its electrical conductivity and thermal properties, and there is no obvious macro cutting force during EDM, so it has been widely use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H1/04B23H9/14
Inventor 王玉魁刘洪政王振龙何小龙耿雪松
Owner HARBIN INST OF TECH
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