Compound tool electrode for electric arc grinding

Abstract

The invention discloses a compound tool electrode for the compound machining of electric arc grinding. The compound tool electrode comprises a grinding head, an annular electrode and a compound electrode chuck, wherein the grinding head is in the shape of a cylinder with a central hole or without the central hole; and the annular electrode is hollow and provided with rushing liquid holes. The grinding head is inserted into the compound electrode chuck, and the grinding head and the compound electrode chuck are arranged in the annular electrode. According to the compound tool electrode, electric arc discharge machining is carried out at the outer side of the conductive tool electrode to obtain high material removal efficiency; and meanwhile, grinding machining is implemented by virtue of the grinding head at the middle of the tool electrode to improve the machining quality for a workpiece. The compound tool electrode can be used for high-efficiency and low-cost machining for hard-to-cutmaterials, and achieves the uniform purposes of high-efficiency and low-cost machining and high surface quality of the materials.

Description

technical field [0001] The invention relates to a tool for realizing arc and grinding compound processing, in particular, it is a compound tool electrode combining arc discharge processing and grinding process. Background technique [0002] Arc discharge machining is commonly used to achieve high-efficiency and low-cost roughing of difficult-to-cut materials, but due to its extremely high energy density, the energy of the discharge pulse is also large, resulting in the formation of large and deep pits, resulting in rough machined surfaces. Erosion particles at high temperature tend to stick to the surface of the workpiece to form a recast layer during cooling, which brings many adverse effects to subsequent processing. [0003] According to patent retrieval, it can be known that Gu Lin et al. described the high-speed arc discharge grinding composite processing method in CN107649755A. This patent mainly proposes the high-efficiency, low-cost, High-precision processing; the e...

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Problems solved by technology

[0006] Aiming at the special processing form of high-speed arc discharge grinding, the present invention proposes a composite electrode, which can well solve the problem of poor surface quality of the workpiece after high-speed arc discharge processing, the inability to process non-rotating parts and high-speed Problems such as inability to compensate in time after the loss of electrodes and abrasives in arc grinding combined machining

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