Grinding machining device and machining method for concentric circular arc groove of hard and brittle material workpiece

Abstract

The invention discloses a grinding machining device for a concentric circular arc groove of a hard and brittle material workpiece. The grinding machining device comprises a lathe spindle, a lathe guide rail, a lathe tail frame, a forming grinding wheel matched with the concentric circular arc groove in boundary dimension, a clamping part for fixing the workpiece and a lathe toolholder support plate for giving the workpiece feeding speed and the back engagement of the cutting edge. The lathe tail frame is slidably arranged on the lathe guide rail. The forming grinding wheel is detachably fixedbetween the lathe spindle and the lathe tail frame and is driven by the lathe spindle to rotate. The clamping part is detachably arranged on the lathe toolholder support plate. The workpiece is detachably mounted on the clamping part and extrudes the rotating forming grinding wheel under the effect of the feeding speed of the lathe toolholder support plate to achieve grinding machining. The grinding machining device has the beneficial effects that concentric circular arc grooves with different radii and lengths can be precisely machined, and the machining efficiency is high.

Description

technical field [0001] The invention relates to the technical field of grinding processing, in particular to a grinding processing device and a processing method for concentric arc grooves of hard and brittle material workpieces. Background technique [0002] Hard and brittle materials have high hardness, high brittleness, and low fracture resistance. The elastic strength of the material itself is relatively close to the elastic limit, making it very difficult to process. A little carelessness during processing will cause cracks or breaks in the workpiece. The most common processing method is grinding, but conventional grinding can only process open planes, outer circles or unimpeded inner holes and groove structures. For hard and brittle workpieces, it is necessary to precisely process various radii, It is difficult to realize concentric circular arc grooves with the same length using traditional grinding devices and processing methods. Contents of the invention [0003]...

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Problems solved by technology

[0002] Hard and brittle materials have high hardness, high brittleness, and low fracture resistance. The elastic strength of the material itself is relatively close to the elastic limit, making it very difficult to process. A little carelessness during processing will cause cracks or breaks in the workpiece. The most common processing method is grinding, but conventional grinding can only process open planes, outer circles or unimpeded inner holes and groove structures. For hard and brittle workpieces, it is necessary to precisely process various radii, Long concentric arc grooves are difficult to achieve with traditional grinding devices and processing methods

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