Electric spark mechanical composite grinding method and machine for non-conductive superhard material

Abstract

The present invention is composite electric spark machine grinding method and machine apparatus for machining non-conductive super-hard material. During the machine, the rotary conducting grinding wheel is used as one electrode for electron spark grinding, electrode sheet feeding along the surface of the workpiece as the other electrode, and the spark discharge in the surface of workpiece between the conducting grinding wheel and the sheet electrode makes the surface of the workpiece of non-conductive super-hard material carbonized and denatured for being eliminated via mechanical grinding. The machine apparatus includes machining unit, pulse power source, control system and liquid supplying system. The sheet for machining is wound onto a barrel, which is driven by a DC motor for servo motion. The present invention has high machining efficiency on non-conductive super-hard material, high surface quality and low machining cost.

Description

technical field

[0001] The invention belongs to the field of mechanical processing, and relates to a non-conductive superhard material electric spark mechanical composite grinding method and corresponding machine tool equipment. Background technique

[0002] Superhard materials such as non-conductive diamond, cubic boron nitride, and engineering ceramics are increasingly widely used in modern industry, national defense, and high-tech fields due to their excellent mechanical, thermal, chemical, acoustic, optical, and electrical properties. , and brought huge social and economic benefits, because superhard materials have extremely high hardness and high brittleness, their forming and processing are very difficult. For conductive superhard materials, great research progress has been made because they can directly adopt electrical processing techniques such as electric discharge forming, wire cutting and grinding. However, for non-conductive superhard materials, people have not ...

Examples

Embodiment Construction

[0016] see figure 1 . The non-conductive superhard material electro-spark mechanical compound grinding machine tool of the present invention is mainly composed of three parts. 1 is the control electric cabinet, which includes computer, control circuit, pulse power supply, operation panel, etc. The computer realizes the control and management of the machine tool through the control circuit; 2 is the processing host; The process provides circulating working fluid.

[0017] See Figure 2. The processing mechanism of the machine tool of the present invention comprises a workbench 4, which drives the workpiece to perform feeding and processing motion; the workpiece to be processed 5; the conductive grinding wheel 6, which can be a conductive grinding wheel or other conductive wheels; the nozzle 7, which injects working fluid into the processing area; Mechanism 8; DC servo motor 9 controls the feeding of the sheet electrode to maintain the continuous EDM process; the sheet electro...

technical field

[0001] The invention belongs to the field of mechanical processing, and relates to a non-conductive superhard material electric spark mechanical composite grinding method and corresponding machine tool equipment. Background technique

[0002] Superhard materials such as non-conductive diamond, cubic boron nitride, and engineering ceramics are increasingly widely used in modern industry, national defense, and high-tech fields due to their excellent mechanical, thermal, chemical, acoustic, optical, and electrical properties. , and brought huge social and economic benefits, because superhard materials have extremely high hardness and high brittleness, their forming and processing are very difficult. For conductive superhard materials, great research progress has been made because they can directly adopt electrical processing techniques such as electric discharge forming, wire cutting and grinding. However, for non-conductive superhard materials, people have not ...

Examples

Embodiment Construction

[0016] see figure 1 . The non-conductive superhard material electro-spark mechanical compound grinding machine tool of the present invention is mainly composed of three parts. 1 is the control electric cabinet, which includes computer, control circuit, pulse power supply, operation panel, etc. The computer realizes the control and management of the machine tool through the control circuit; 2 is the processing host; The process provides circulating working fluid.

[0017] See Figure 2. The processing mechanism of the machine tool of the present invention comprises a workbench 4, which drives the workpiece to perform feeding and processing motion; the workpiece to be processed 5; the conductive grinding wheel 6, which can be a conductive grinding wheel or other conductive wheels; the nozzle 7, which injects working fluid into the processing area; Mechanism 8; DC servo motor 9 controls the feeding of the sheet electrode to maintain the continuous EDM process; the sheet electro...

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