A High Precision Grinding Technology and Application of Slender Shaft

Abstract

The invention relates to the technical field of thin and long shaft machining, and discloses a thin and long shaft high-precision grinding process and an application. The grinding process comprises the process steps of carrying out equipment modification, carrying out reference ring prefabricating, carrying out reference ring installation, carrying out clamping and positioning of a thin and long shaft, carrying out setting of the long and thin shaft correcting position, carrying out correcting position dimension measuring, carrying out grinding machining of an outer circle of a reference ring,carrying out upper bus and side bus correction, carrying out grinding machining of an outer circle of the thin and long shaft and the like, in the equipment modification working procedure, a numerical control outer circle grinding machine is adopted as equipment for grinding the outer circle of the long and thin shaft, and an upper bus dial indicator used for correcting an upper bus of the long and thin shaft is installed on a grinding wheel main shaft box of the numerical control outer circle grinding machine; and meanwhile, an up-down moving mechanism is additionally arranged on the grinding wheel main shaft box of the numerical control outer circle grinding machine, and a side bus dial indicator for correcting a side bus of the thin and long shaft is installed on a moving arm of the up-down moving mechanism. According to the process and the application, the grinding machining precision of the thin and long shaft part is improved.

Description

technical field [0001] The invention relates to the technical field of slender shaft processing, in particular to a high-precision grinding process and application of a slender shaft. Background technique [0002] With the development of the machinery industry, the promotion of intelligent technology, and the increasing popularity of CNC machine tools, the annual demand for slender shaft parts such as ball screws, precision slender screws, and polished rods is increasing year by year. Due to the large aspect ratio of this kind of slender shaft parts, it is easy to deform during processing. Especially when the aspect ratio of the slender shaft is greater than 50, the processing difficulty is greatly increased, the processing efficiency is greatly reduced, and the processing accuracy is very low. Difficult to guarantee. Therefore, solving the problem of high-quality machining and high-efficiency machining of slender shafts has always been a difficult problem that those skille...

AI Technical Summary

Problems solved by technology

Such a broach can be tested in the factory, but it is unqualified to pull the spline hole in the gear factory. This kind of processing error seriously affects the quality of the broach, and even affects the quality of the spline hole of the part.

[0006] Traditional process 2: Grinding the outer circle does not use the center frame to support the fixture but directly grinds the outer circle, forming a new shape error, which destroys the regular arrangement of the cutting edge of the broach, and the out-of-roundness of the outer circle reference leads to subsequent machining accuracy become worse

[0007] In addition, when processing slender shaft parts such as ball screws, precision slender screws, and polished rods, there will also be technical problems such as difficulty in adjusting the slender shaft and resulting in out-of-tolerance coaxiality

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