Electrospark trimming device for metal binding agent superabrasive formed grinding wheel for sawtooth processing

Abstract

The invention relates to an electrospark trimming device for a metal binding agent superabrasive formed grinding wheel for sawtooth processing. The electrospark trimming device comprises an X-direction computer-numerical-control (CNC) movement module, a Y-direction CNC movement module, a Z-direction CNC movement module, an insulating fixture, a slender tool electrode, a CCD (Charge Coupled Device) online detection device, a CNC operating device and a high-frequency power supply, wherein the slender tool electrode is mounted on the Z-direction CNC movement module through the insulating and locating fixture, and CNC codes are generated by the CNC operating device according to the initial morphology of the grinding wheel and a real-time morphology of the CCD online detection device, so as to control the linkage of the X-direction CNC movement module, the Y-direction CNC movement module and the Z-direction CNC movement module. According to the electrospark trimming device, the tool electrode with the diameter of 0.3-5mm is adopted, and a superabrasive bound metal binding agent is removed through etching in a CNC electrospark discharging manner, so that the precise trimming for the formed grinding wheel can be effectively realized.

Description

technical field [0001] The invention relates to the technical field of dressing of metal bond superabrasive forming grinding wheels, in particular to an electric spark dressing device for metal bond superabrasive forming grinding wheels for sawtooth processing. Background technique [0002] With the rapid development of the machinery and building materials industry, the demand for saw blades is increasing, and the hardness of saw blade materials is getting higher and higher. At present, there are high-speed steel (HSS), solid carbide, and tungsten steel on the market. , tooth alloy, diamond, etc. Whether it is the production or refurbishment of saw blades, grinding wheels must be used to grind or grind the saw blades. However, as the hardness of materials is getting higher and higher, especially the wide application of cemented carbide in the cutting tool industry, the requirements for grinding wheels are also becoming more and more stringent. [0003] Superabrasive grindi...

AI Technical Summary

Problems solved by technology

[0004] At present, according to the relevant literature on the dressing of metal-bonded superabrasive grinding wheels, flat electrodes or shaped electrodes are mostly used in EDM dressing. This dressing method basically uses line-surface or surface-to-surface contact. The contact with the worn and deformed grinding wheel may cause the uneven loss of the electrode, so that the electrode loses its original shape, and the electrode needs to be reprocessed many times, which increases the working hours and costs

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