Control device and method of electrolytic current in grinding process of ELID

An electrolytic current and control device technology, which is applied in the parts of grinding machine tools, abrasive surface adjustment devices, computer control, etc. The effect of constant state of oxide film

Inactive Publication Date: 2010-06-09
TIANJIN UNIV
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  • Abstract
  • Description
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Problems solved by technology

Adjusting electrolysis parameters such as voltage or duty cycle can change the electrolysis intensity to control the state of the oxide film, but at the same time it will directly cause changes in the electrolysis current, resulting in the loss of the benchmark for the characterization of the state of the oxide film

Method used

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  • Control device and method of electrolytic current in grinding process of ELID
  • Control device and method of electrolytic current in grinding process of ELID
  • Control device and method of electrolytic current in grinding process of ELID

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Embodiment Construction

[0020] The present invention is described in detail below in conjunction with accompanying drawing:

[0021] In the figure: 1 and 2 are pulse signal generation cards, 3 is a data acquisition card, 4 is a computer, 5 is an AND gate drive circuit, 6 is a pulse power supply, 7 is a Hall sensor, 8 is an electrode, 9 is a cast iron grinding wheel, 10 11 is a workpiece, and 11 is a workbench.

[0022] The first pulse signal generation card (AC6651, Beijing Shuangnuo Measurement and Control Co., Ltd.) 1, the second pulse signal generation card (AC6651, Beijing Shuangnuo Measurement and Control Co., Ltd.) 2 and the data acquisition card 3 are installed in the computer host 4, and the computer host 4 Connect the AND gate drive circuit 5, the drive circuit 5 is connected to the pulse power supply 6, and the Hall sensor (LA28-NP, Beijing Laim Electronics Co., Ltd.) 7 is respectively connected to the data acquisition card 3, the electrode 8, the cast iron grinding wheel 9 and the data acq...

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Abstract

The invention relates to control device and method of electrolytic current in the grinding process of electrolytic in-process dressing (ELID). The control device comprises a host computer, a pulse signal generating card, a data acquiring card, an AND gate driving circuit, a pulse power source and a hall sensor. The control method is characterized in that the pulse generated by the pulse signal generating card drives the pulse power source through an AND gate superimposed circuit, the data acquiring card acquires current and pulse signals through the hall sensor and a pulse card, and the pulse power source is connected with electrodes and a cast iron based grinding wheel for the ELID. In the invention, the large pulse is used for realizing the purpose of periodically starting and stopping the electrolytic action to control the electrolytic current in the grinding process, thereby controlling the state of an oxidation film to be maintained near the set target value, and ensuring the stable grinding process.

Description

technical field [0001] The invention relates to a control device and method for electrolysis current during ELID grinding process. Background technique [0002] Electrolytic In-process Dressing (ELID for short) grinding technology is a dynamic balance between the non-linear electrolytic dressing effect and the inhibition of electrolysis by the oxide film formed on the surface of the grinding wheel during the grinding process. Continuous dressing, so that the abrasive grains of the grinding wheel obtain a constant protrusion, so as to achieve a controllable, stable and optimal grinding process. [0003] During the ELID grinding process, the state of the oxide film (mainly the film thickness and compactness) is directly related to the efficiency and quality of the grinding process. The ideal oxide film state in the grinding process should be able to keep the abrasive at a certain edge height according to the needs of the grinding process, so as to maintain the sharpness of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B53/00G05B15/02
Inventor 任成祖杨黎健靳新民
Owner TIANJIN UNIV
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