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Control method of electric pulse spark discharge gap

A technology of spark discharge and control method, applied in circuits, manufacturing tools, electric processing equipment, etc., can solve problems such as affecting processing efficiency and processing quality, and inconvenient operation.

Active Publication Date: 2017-03-22
保时杰数控机床江苏有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The output voltage of the pulse power supply of the EDM drilling machine is preset. There is no automatic voltage regulation function during the EDM process. The relative moving speed between the electrode and the workpiece must match the voltage of the pulse power supply. If the feeding speed is too fast, the workpiece will contact with the electrode to form a short circuit. If the feeding speed is too slow, an open circuit will be formed between the workpiece and the electrode. Both phenomena will affect the processing efficiency and processing quality; in order to maintain a reasonable gap between the electrode and the workpiece gap to generate spark discharge, which requires the operator to repeatedly adjust the feed parameters according to the processing situation, which brings great inconvenience to the operation

Method used

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  • Control method of electric pulse spark discharge gap
  • Control method of electric pulse spark discharge gap
  • Control method of electric pulse spark discharge gap

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Embodiment Construction

[0018] The specific embodiment of the present invention will now be described in conjunction with the accompanying drawings.

[0019] A control method for an electric spark pulse power supply device, the electric spark pulse power supply device includes a pulse signal generator composed of a single-chip microcomputer and a D / A converter, a power amplifier for power amplifying the pulse signal, and a power amplifier for detecting the power of the power amplifier. A current detector for output current, a memory for storing pulse signal information and output current information, and a keyboard for inputting data; its control method is realized by running the internal program of the single-chip microcomputer.

[0020] After starting up, the workpiece on the EDM machine moves to the electrode or the electrode moves to the workpiece at a certain speed;

[0021] Run the internal program of the single chip microcomputer (the program flow chart is as follows image 3 Shown), the prog...

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Abstract

The invention relates to a control method of an electric pulse spark discharge gap. The control method is used for an electrosparking machine tool to keep a proper discharge gap between an electrode and a workpiece. The control method is characterized in that detection pulses are inserted into work pulse sets at intervals, the voltage values of work pulses are automatically adjusted through the detection pulses, the voltage values of the work pulses are matched with the workpiece feed speed, a spark discharge state is kept, the short circuit phenomenon is avoided, the probability of occurrence of the open circuit phenomenon is reduced, the machining efficiency and machining quality are improved, and meanwhile convenience of manually adjusting the cutting speed is eliminated. The short circuit current is detected in the period that the low-voltage detection pulses occur, electrode wire damage can be avoided, arcing can be avoided when the workpiece leaves the electrode, and the smoothness of the workpiece is prevented from being reduced.

Description

technical field [0001] The invention relates to a control method for an electric pulse spark discharge gap, which is used in an electric discharge machine tool to keep a proper discharge gap between an electrode and a workpiece. Background technique [0002] The output voltage of the pulse power supply of the EDM drilling machine is preset. There is no automatic voltage regulation function during the EDM process. The relative moving speed between the electrode and the workpiece must match the voltage of the pulse power supply. If the feeding speed is too fast, the workpiece will contact with the electrode to form a short circuit. If the feeding speed is too slow, an open circuit will be formed between the workpiece and the electrode. Both phenomena will affect the processing efficiency and processing quality; in order to maintain a reasonable gap between the electrode and the workpiece The gap to generate spark discharge requires the operator to repeatedly adjust the feed pa...

Claims

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Application Information

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IPC IPC(8): B23H1/02
CPCB23H1/02
Inventor 丁毅
Owner 保时杰数控机床江苏有限公司
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