Ball seat coating area for spherical hinge and partition detecting method of coating zone fitting degree

Abstract

The invention provides a ball seat coating area for a spherical hinge and a partition detecting method of coating zone fitting degree. The method includes steps of acquiring a vertical view of a ballseat assembled and coated by the spherical hinge by a gray camera; traversing all pixel points of the vertical view under a Matlab environment; after removing noise through image pretreatment, performing edge detection on the gray level image on the basis of a regional growth method of a seed point so as to solve the coordinate value of every pixel point where a boundary line of the ball seat coating area locates; further carrying out secondary partitioning on the zone in the boundary line; finally confirming the zone of the inner spherical face of the ball seat represented by different fitting degrees in the ball seat coating zone on the basis of the gray value of the pixel point. The detecting method has good stability of detecting result, real and reliable data; meanwhile, the method provides real and effective basic data for the other related experiments of the spherical hinge; therefore, the detecting efficiency of the whole detecting chain of the spherical hinge product is also improved.

Description

technical field [0001] The invention relates to ball seat coloring and segmental detection technology of ball joints, in particular to a segmental detection method of the ball seat coloring area and the bonding degree of the coloring area in the ball joints of automobile suspension, swing arm and bogie series. Background technique [0002] The ball joint is a kind of space connection hinge, which is mainly composed of three parts, the ball pin, the ball seat and the ball sleeve. The ball joint structure only allows the two parts to rotate relative to the common center of the ball, limiting their relative movement in three directions. Therefore, according to the cylinder height of the ball sleeve and the size of the inner and outer diameters, the ball pin can rotate around the central axis of the cylinder. Rotate or swing, thereby forming a spherical pair. In the mechanical field, especially the ball joint in the automotive field, there are conditions such as high temperatur...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, a method for measuring the painted area of ​​the ball seat based on the grayscale image digital processing technology and a partitioned detection method for the painted area are provided, which solves the problem of using manual experience to judge the painted area. The resulting inspection and testing standards are not uniform and the stability of ball seat product detection is poor. At the same time, grayscale images are used instead of color digital images to further solve the problem of large boundary line judgment errors caused by the low degree of boundary recognition and low degree of automation of color digital images. , the problem of low efficiency, the detection method of the present invention is easy to operate, the standard is unified and the comprehensive detection cost is low

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