All-round automatic detection device for surface defects of workpieces

Abstract

The invention discloses an all-round automatic detection device for surface defects of workpieces, which comprises a conveying device and a visual detection module, wherein the conveying device is used for conveying workpieces, the visual detection module is used for detecting surface defects of workpieces, the conveying device comprises a first conveyor belt and a second conveyor belt, and the first conveyor belt is partially adhered to the second conveyor belt so as to form a workpiece overturning channel for turning over workpieces and conveying the workpieces from the first conveyor belt to the second conveyor belt; and when workpieces are on the first conveyor belt, surface defects on the bottom surfaces of the workpieces are originally difficult to detect, but after the workpieces pass though the workpiece overturning channel, the workpieces are turned over, so that the surface defects of the workpieces can be detected precisely and conveniently through the visual detection module. The all-round automatic detection device for surface defects of workpieces disclosed by the invention is a stream-lined device, is simple in structure, easy to implement and good in controllability, and can rapidly and efficiently detect surface defects of workpieces in a large scale, therefore, the device is especially suitable to be used for detecting hexahedral workpieces and has a good application prospect.

Description

technical field [0001] The invention relates to the field of detection equipment for workpiece surface defects, in particular to an omnidirectional automatic detection device for workpiece surface defects. Background technique [0002] In the actual production process of many industrial occasions, there are strict requirements on the surface quality of the workpiece produced, and the unqualified products on the production line need to be removed in time. Only when the surface quality meets the requirements, the workpiece is allowed to enter the next step of production and processing or Packaged into finished products for sale. The surface defects of hexahedral workpieces are specifically manifested as the following: drop corners, cracks, sand holes, pits, pinholes, bright spots, knife marks and scratches, etc. [0003] At present, the surface defect detection of hexahedron is mainly based on manual visual inspection, supplemented by tools such as magnifying glass and micros...

AI Technical Summary

Problems solved by technology

There are many limitations and disadvantages in manual visual inspection: on the one hand, due to the influence of the production environment and work intensity, inspectors are prone to fatigue so that missing inspections and misjudgments occur, that is, 100% inspection cannot be guaranteed; on the other hand, enterprises are facing a sharp increase. Market demand requires a fast production process to further improve production efficiency. In order to ensure that a large number of products are transferred and provided to customers in a timely manner, it is necessary to increase the number of inspection personnel to ensure the speed of inspection and classification, which will lead to manpower. substantial increase in cost

The detection device cleverly uses a transparent workbench, which can realize the detection of the lower end surface of the workpiece without turning the workpiece over, which improves the detection efficiency. Although the structure of the device is simple and the detection is convenient, the upper image system on the oblique upper side needs to detect more One surface, and the bottom surface is measured by the lower image system through a transparent workbench, the detection accuracy is not high, and it cannot be applied to the production line, which is not conducive to large-scale industrial production

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