Control hole installation method for asymmetric shift fork detection

Abstract

The invention relates to a control hole mounting method for asymmetric shifting fork detection and belongs to the field of part error detection. In order to solve the convenient data acquisition in the asymmetric shifting fork detection, a left measuring claw is installed into a standard shifting fork operating hole, wherein the center of the operating hole is recorded as O1. The longitudinal position of the center O2 of a right measuring claw is adjusted, and the X-direction distance Lx between O1 and O2 is adjusted to 90mm. The lateral position of the center O2 of the right measuring claw isadjusted toward the bottom (-) of a 0-0 line in order to obtain a Y-direction distance Ly between the O1 and O2 of 64mm. The half hole measuring points of a control hole are recorded as 6, 7, 8, and9. The method is able to conveniently acquire data in the asymmetric shifting fork detection.

Description

technical field [0001] The invention belongs to the field of component error detection, and relates to a control hole installation method for asymmetric shift fork detection. Background technique [0002] Machine tool shift fork parts are mainly used in the machine tool control mechanism to change the position of the machine tool slip gear to realize the speed change of the machine tool, or to control the engagement and disconnection mechanism of the clutch to realize the horizontal or vertical feed movement of the moving parts of the machine tool. The shift fork is usually composed of a hole (manipulation hole) assembled on the shaft of the control part and a half hole (control hole) assembled on the shaft of the control part. The main technical requirements are the diameter and deviation of the control hole and the diameter (or radius) of the control hole. and deviation, the center position size and deviation of the control hole and the control hole, the parallelism of the...

AI Technical Summary

Problems solved by technology

[0003] At present, the geometric dimensions and shape error detection of machine tool fork parts mainly have low detection accuracy (mechanical measuring tool detection or indirect detection), low detection efficiency (manual detection or single error detection), and poor versatility (only one size of the dial can be detected. fork parts) etc.

Since the control hole of the shift fork part is a half hole, and the starting position of the half hole of different shift forks is different, the included angle of the half hole is different, and the requirements for the position from the half hole to the center of the control hole are different, the diameter (or radius) of the half hole is given And the detection of the center position size of the two holes brings great difficulties

The traditional two-hole center-to-center dimension detection is to solve the measuring dimension chain, calculate the busbar size in the two holes according to the required two-hole center-to-center distance dimension and the radius dimension of the two holes, measure the busbar size in the two holes, and judge the center-to-center distance dimension of the two holes Whether it is within the required range, this error judgment method will produce fake waste products, which need to be further tested. It is an indirect detection method, which is troublesome and has low detection accuracy.

Poor versatility is another restriction point for machine tool shift fork machining error detection. A set of detection devices can only be used for one control hole diameter, control hole diameter, control hole and control hole center position requirements and dimensions, control hole end face and control hole Fork detection of end face height difference, any change in any of the five parameters requires the design, production and assembly of another detection device

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