A Bending Correction Method for Shaft Parts

Abstract

A shaft part curvature correcting method includes the following steps that A, a shaft part is placed on a cushion block of a pressing machine, and a lifting and metering device is placed on the portion, adjacent to the cushion block, on the pressing machine; B, after the pressing machine is used for correcting the shaft part, a rolling mechanism is used for supporting the shaft part, the shaft part is rotated, and the coaxiality of the shaft part is detected; C, if coaxiality detection is qualified, curvature correction is completed, if coaxiality detection is unqualified, the rolling mechanism descends, the shaft part falls on the cushion block, and the step B and the step C are repeated till the coaxiality detection is qualified. By means of the shaft part curvature correcting method, the whole process of correcting the shaft part is performed on the pressing machine, alignment is not needed, and the metering difficulty is reduced. The invention further provided a device used for the method.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a bending correction method for shaft parts. Background technique [0002] Shaft parts, especially high-precision shaft parts used in aviation and other fields, are usually bent due to the influence of cutting force during machining. In order to ensure the coaxiality of the shaft cylinder during high-precision shaft processing According to the requirements, after completing a machining, it needs to be corrected to ensure the cylindricity of the shaft. [0003] The existing bending correction method is generally to apply pressure to the high point of deformation on the shaft to reduce the deformation of the shaft. The main process is: determine and mark the high point of the shaft parts on the processing machine tool, and then move the shaft parts to Go to the press, use the high pressure point of the press to calibrate, and then put the shaft parts back into the machine tool to test whe...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing method is complex in operation, time-consuming and labor-intensive; and when printing a watch on a machine tool, it is first necessary to jack up the two ends of the shaft part with the top, and it needs to be aligned during the jacking process to ensure that the rotation center of the shaft is For the central axis of the shaft, the alignment process is cumbersome and requires operators with certain skills and experience to do it well. In addition, because the shaft parts may have been processed and deformed, the accuracy of alignment is not high

In the process of calibration with a press, it is difficult to succeed at one time, so repeated metering and calibration are required. Not only is the calibration difficult, but the repeated handling process between the press and the processing machine tool is also very troublesome, and there may be injuries caused by falls. risk of parts

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