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Electric spark discharging machining device special for PCD materials

A technology of electrical discharge machining and electric spark, which is applied in the direction of electric processing equipment, metal processing equipment, circuits, etc., can solve the problems of ineffective processing of polycrystalline diamond, achieve smoothness improvement, realize real-time detection, and improve accuracy and reliability Effect

Inactive Publication Date: 2016-01-27
苏州新火花机床有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among all these techniques, EDM and EDM are efficient and low-cost processing methods, however, they cannot effectively process large-area polycrystalline diamond

Method used

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  • Electric spark discharging machining device special for PCD materials
  • Electric spark discharging machining device special for PCD materials

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: An EDM device dedicated to PCD materials, including a positive electrode 1, a negative electrode 2 connected to the PCD material to be processed, a high-voltage discharge power supply 3, a low-voltage discharge power supply 4, a processing state monitoring module 5, and a pulse Generating module 6, the positive electrode 1 is connected in series with one end of an inductor 7, and after the low-voltage discharge power supply 4 is connected in series with a low-voltage power switch tube 8, one end of the low-voltage positive side is connected to the other end of the inductor 7, and the corresponding low-voltage negative One end of the side is connected to the negative electrode 2, thereby forming a low-voltage discharge circuit; after the high-voltage discharge power supply 3 is connected in series with a high-voltage power switch tube 9, one end of the high-voltage positive side is connected to the other end of the inductor 7, and one end of the corresponding...

Embodiment 2

[0021] Embodiment 2: An EDM device dedicated to PCD materials, including a positive electrode 1, a negative electrode 2 connected to the PCD material to be processed, a high-voltage discharge power supply 3, a low-voltage discharge power supply 4, a processing state monitoring module 5, and a pulse Generating module 6, the positive electrode 1 is connected in series with one end of an inductor 7, and after the low-voltage discharge power supply 4 is connected in series with a low-voltage power switch tube 8, one end of the low-voltage positive side is connected to the other end of the inductor 7, and the corresponding low-voltage negative One end of the side is connected to the negative electrode 2, thereby forming a low-voltage discharge circuit; after the high-voltage discharge power supply 3 is connected in series with a high-voltage power switch tube 9, one end of the high-voltage positive side is connected to the other end of the inductor 7, and one end of the corresponding...

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Abstract

The invention discloses an electric spark discharging machining device special for PCD materials. The electric spark discharging machining device comprises a positive electrode, a negative electrode connected with the to-be-machined PCD materials, a high-voltage discharging power source, a low-voltage discharging power source, a machining-state monitoring module and a pulse generation module. The positive electrode is connected with one end of an inductor in series, and after the low-voltage discharging power source is connected with a low-voltage power switch tube in series, one end of the low-voltage positive electrode side of the low-voltage discharging power source is connected to the other end of the inductor. The machining-state monitoring module comprises a sampling module, a configuration module, a high speed comparing module and an output module, wherein the sampling module, the configuration module, the high speed comparing module and the output module are sequentially connected. The sampling module further comprises a first resistor and a second resistor which are connected in series. The end, opposite to the first resistor, of the second resistor serves as a sampling output end, and a first diode is located between a joint of the sampling output end and the second resistor and a grounding end. By means of the electric spark discharging machining device, real-time detection for a single discharge pulse is achieved, the accuracy and the reliability for detecting the gap state are greatly improved, and small pulse width machining is carried out on the PCD materials.

Description

technical field [0001] The invention relates to an electric spark discharge machining device specially used for PCD materials, and belongs to the technical field of electric spark machining. Background technique [0002] Polycrystalline diamond (Polycrystalline Diamond, referred to as PCD) is a new type of superhard material that has been studied and used internationally since the 1970s. It has a hardness close to natural diamond, wear resistance and impact resistance comparable to cemented carbide, and chemical properties. Stable and widely used in precision cutting and other fields. Polycrystalline diamond has excellent special properties, but it is very difficult to form and surface finish, which seriously hinders its popularization and application. Therefore, it is particularly important to study its processing method. [0003] At present, scholars at home and abroad have conducted a large number of researches and experiments on the processing problems caused by the hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H1/02
CPCB23H1/022
Inventor 高坚强时解放
Owner 苏州新火花机床有限公司
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