Centerless super-fine grinding and polishing processing device for precise shaft parts

Abstract

The invention relates to a centerless super-fine grinding and polishing processing device for precise shaft parts. The device comprises a base and columns, the columns are fixedly installed on the plane of the top of the base, and the plane of the top of the base is provided with a horizontal movement mechanism; a guide roller rotation driving mechanism is installed on the plane of the top of thehorizontal movement mechanism, a grinding head lifting mechanism is fixedly assembled on the end face of one side of each column, the plane of the outer side of a beam of each grinding head lifting mechanism is provided with a grinding head tilting swing mechanism, and output ends of the grinding head tilting swing mechanism are provided with a grinding and polishing processing device body. According to the centerless super-fine grinding and polishing processing device for the precise shaft parts, a centerless processing principle is adopted for super-fine grinding and polishing of the shaft parts in a step-shaped irregular appearance, the geometrical shape errors of the outer contours of the shaft parts are corrected, the surface roughness of the shaft parts is lowered, the microcosmic surface texture is changed, and high precision of the geometrical shapes and surface quality of the precise shaft parts is guaranteed.

Description

technical field [0001] The invention relates to a centerless ultra-fine grinding and polishing processing device for precision shaft parts. Background technique [0002] Many key basic parts in mechanical equipment are stepped shaft structures, such as hydraulic valve cores, transmission shafts of precision reducers, and precision piston rods, which require high processing precision and surface quality. The processing quality of these precision shaft parts has a great influence on the performance, life and reliability of major equipment and host products. In traditional processing methods, small precision shaft parts are mostly processed by cylindrical turning or cylindrical grinding. The axis of the workpiece is kept fixed during processing, but multiple clamping is required. Changing the position of the workpiece causes multiple changes in the clamping datum. There is a large coaxial error in the center of both ends of the shaft part. If the shape of the shaft part is sl...

AI Technical Summary

Problems solved by technology

In traditional processing methods, small precision shaft parts are mostly processed by cylindrical turning or cylindrical grinding. The axis of the workpiece is kept fixed during processing, but multiple clamping is required. Changing the position of the workpiece causes multiple changes in the clamping datum. There is a large coaxial error in the center of both ends of the shaft part

If the shape of the shaft part is slender, it is easy to cause the shaft part to bend and deform during traditional cylindrical turning or grinding, increasing the geometric shape error

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