A grinding head with online electrolytic dressing function

Abstract

The invention discloses a grinding head with an online electrolytic dressing function. The grinding head comprises a motion system, an electrolysis system and a supporting mechanism; the motion systemcomprises a DC brushless motor, a transmission V belt wheel set and a grinding wheel shaft system assembly; the electrolysis system comprises a copper shoe, a copper shoe frame, a fine adjustment mechanism and a fixing frame; and the supporting mechanism comprises a rack support plate, a pressure plate, a connecting screw and a positioning taper pin. According to the grinding head, through the electrolytic action, metal abrasive dust clogging in a grinding wheel is removed, the problem of serious blockage of the grinding wheel when pure metal with large machining plasticity is machined through electrolytic grinding is solved, the grinding condition is improved, the grinding ability of the grinding wheel is kept, the shape and appearance of the grinding wheel cannot be influenced because agrinding wheel material is not removed, and it is further guaranteed that processed products have high processing precision. According to the grinding head, the electrode fine adjustment mechanism isdesigned, a differential ball slide table is adopted for adjusting a gap between the grinding wheel and a copper shoe electrode with high precision, and the best an optimal electrolysis effect is obtained.

Description

technical field [0001] The invention relates to the field of electrolytic grinding in precision and special processing, in particular to a grinding head with the function of on-line electrolytic dressing. Background technique [0002] Due to their unique properties, stainless steel and pure iron are widely used in aerospace, ultra-precision instruments and other fields. In order to meet specific needs, ultra-precision machining is required. Precision turning is the main processing method, and diamond tools cannot be used due to the rapid chemical wear of stainless steel, pure iron and diamond tools. Grinding is a commonly used precision machining method, but stainless steel and pure iron are plastic metals, so the problem of grinding wheel clogging is often encountered during grinding. After the grinding wheel is clogged, the removal ability of the grinding wheel decreases, and the processing quality deteriorates, making it impossible to continue processing. Precision machi...

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Problems solved by technology

[0006] The above-mentioned electrolysis method plays an important role in improving the effect of electrolytic grinding and maintaining the removal ability of the grinding wheel, but there are still some processing problems that need to be solved. For example, ELID maintains the removal ability of the grinding wheel by removing the grinding wheel bond, but it will also change The shape of the grinding wheel, which in turn affects the surface quality and machining accuracy of the workpiece; the method of cleaning abrasive debris with water jets is not suitable for on-line trimming. Due to the impact of high-pressure water jets, it will have a greater impact on the grinding wheel, causing Grinding system chatter, especially for grinding rods or thin-walled parts with poor rigidity, is likely to cause chatter, which affects machining accuracy and is difficult to meet actual processing needs

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