ABS gear ring end face defect detecting system and method

Abstract

The invention relates to an ABS gear ring end face defect detecting system. The system mainly comprises a visual inspection device chassis, a defect detection result indicator light, an image acquisition device, an aluminum profile support, a gear ring rotary table, a display screen, an industrial control machine and a work table; when a gear ring is detected, the to-be-tested gear ring is firstlyplaced in a ring gear sleeve, a detection software in an upper computer controls the gear ring rotary table to drive the gear ring to rotate, an industrial area array CCD camera is utilized to acquire and obtain an image of the local ABS gear ring end face, defects are identified by a defect detection algorithm in the software until the detection of the whole gear ring is completed, and then thequalification of the gear ring is judged; in the defect detection algorithm, the image is firstly subjected to binarization and median filtering treatment, then the end face image of each gear ring isaligned, finally a ratio of the number of pixels in a connected domain of each gear ring end face image and an accumulated value of the pixels in the horizontal direction in each connected domain arecalculated in turn, and the ratio of the number of pixels and the accumulated value are compared with corresponding thresholds to determine whether a defect exists in the end face of the gear ring.

Description

technical field [0001] The invention relates to a part surface defect detection system, in particular to an ABS ring gear end surface defect detection system. Background technique [0002] The anti-lock braking (ABS) system is the most basic safety system of the vehicle. The wheel speed sensor ring gear is the core component of the ABS system, and its quality directly affects whether the ABS system can work normally. Therefore, in order to prevent unqualified wheel speed sensor ring gears from being put into automobile production and improve vehicle safety performance, all ring gear manufacturers have set up product inspection links. However, the manual visual inspection method is still used at present, which is easy to cause problems such as time-consuming, labor-intensive, and large errors when the number of ring gears to be inspected is large. [0003] In order to meet the general trend of industrial intelligent production, intelligent workshop, and machine substitution,...

AI Technical Summary

Problems solved by technology

However, at present, the method of manual visual inspection is still used. When the number of ring gears to be inspected is large, this method is likely to cause problems such as time-consuming, labor-intensive and large errors.

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