Small thin long shaft processing method

Abstract

The clamping device and processing method of the grinding process of the small slender shaft of the present invention, the grinding process reference is the large outer diameter and end face of the small shaft, and the grinding of the small slender shaft is carried out by using a special support type centerless fixture processing. The support type centerless fixture has a simple structure and good positioning accuracy after repeated clamping, and is suitable for grinding of small-batch and high-precision small shaft parts in the field of mechanical processing. The shape accuracy and position accuracy are high. After grinding, the groove shape error is 0.0008mm, the groove position error is 0.015mm, and the double groove parallelism is 0.0015mm. And in the grinding process, the small and long shaft has good support rigidity, and the grinding process is stable and reliable.

Description

Technical field: [0001] The invention belongs to the technical field of shaft grinding, in particular to a clamping device and a processing method for grinding small and long shafts. Background technique: [0002] For small and slender shaft parts with grooves and steps on the outer surface, the currently used grinding and processing clamping devices and processing methods mainly include: [0003] 1. Center clamping fixture: small shaft parts are clamped with a chuck. The machining accuracy of the parts is affected by the accuracy of the workpiece axis of the machine tool and the installation accuracy of the parts. The rigidity of the system is poor, and mass production is difficult. [0004] 2. The processing of center hole positioning: that is, the positioning center holes at both ends of the shaft are used as the reference. Its main features are: simple clamping, and good positioning accuracy after repeated clamping, but its processing accuracy depends on the accuracy of ...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems caused by positioning and clamping in the grinding process of small shaft parts, the purpose of the present invention is to provide a clamping device and processing method for grinding small and slender shafts, which are used for small batches, high-precision small and slender The grinding process of the complex surface of the shaft improves the machining accuracy index of the small and slender shaft, so that the small and slender shaft has good support rigidity during the grinding process, and the grinding process is stable and reliable

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