A method for detecting the through hole of the rear cover of the automobile drive axle housing
A drive axle housing and detection method technology, applied in the direction of measuring devices, instruments, etc., can solve problems such as the inability to correctly determine whether the back cover problem is welding, the inability to analyze the cause of rectification, and the cumbersome measurement process, so as to improve processing quality and detection efficiency. The detection method is simple and the effect of the simple detection method
Active Publication Date: 2022-01-04
FANGSHENG AXLE LIUZHOU
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is: to provide a method for detecting the through hole of the rear cover of the automobile drive axle case, so as to solve the existing problems in the prior art that it is impossible to correctly determine whether it is a rear cover problem or a welding problem, and it is impossible to analyze the cause after an out-of-tolerance problem occurs. Inadequacies of rectification, cumbersome measurement process and low measurement efficiency
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Embodiment 1
[0059] A method for detecting the through hole of the back cover of the automobile drive axle housing. The method first measures the length of the line between the center of the outer circle of the outline of the back cover and the center of the through hole to determine whether the welding of the back cover and the boss of the through hole is qualified; Then build a coordinate system for the drive axle housing that has welded the back cover and machined the size of the through hole, measure the diameter of the through hole and the coordinates of the center of the circle, and measure the length of the line between the center of the through hole and the center of the outer circle of the outline of the back cover. According to the coordinates of the center of the through hole and the coordinates of the center of the outer circle of the outline of the rear cover, it is judged whether the welding of the rear cover and the drive axle housing is qualified.
[0060] The detection equi...
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A method for detecting a through hole of a rear cover of an automobile drive axle housing, which relates to a detection method. The method first measures the length of a line between the center of the outer circle of the outline of the rear cover and the center of the through hole to determine the convexity of the rear cover and the through hole. Whether the assembly and welding of the platform is qualified; then build a coordinate system for the drive axle housing that has welded the back cover and machined the size of the through hole, measure the diameter of the through hole and the coordinates of the center of the circle, and measure the distance between the center of the through hole and the center of the outer circle of the outline of the back cover According to the length of the connecting line between the through hole and the center coordinate of the outer circle of the outline of the back cover, it is judged whether the welding of the back cover and the drive axle housing is qualified. The invention can judge whether it is the manufacturing problem of the axle housing back cover itself, or the welding back cover of the axle housing assembly, and can analyze the reason for rectification after the out-of-tolerance problem occurs. It has the characteristics of simple detection method, high measurement efficiency, low cost, and strong versatility. , It has a good promotion and application prospect in the axle industry.
Description
technical field [0001] The invention relates to a method for detecting the size of a through hole, in particular to a method for detecting the through hole of the rear cover of an automobile drive axle case. Background technique [0002] The automobile drive axle housing 1 and the rear cover 2 all need to be processed separately during processing, and then assembled and welded, wherein the rear cover 2 is also welded with a through-hole boss 3 with a through-hole 301, and the through-hole 301 is used for Install the bearings (see figure 1 ), it is very important whether the size of the through hole 301 is correct or not is related to the bearing device. At present, there are several detection methods for the through hole of the back cover of the automobile drive axle housing: 1. Using conventional special inspection tools, only the position of the through hole can be checked, and it is impossible to correctly determine whether it is a problem with the back cover or a weldin...
Claims
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IPC IPC(8): G01B21/02G01B21/10G01B21/14
CPCG01B21/02G01B21/10G01B21/14
Inventor 唐咸能陈勇杨波施文爱李晟体樊文问柳海柳陈春明李云
Owner FANGSHENG AXLE LIUZHOU