Machine vision detection system for standard fasteners

Abstract

The invention discloses a machine vision detection system for standard fasteners. A vibration disc (16) is arranged at one end of the top of a machine table (5), a scale division rotating disc is arranged at the other end of the top of the machine table (5), a guide rail (12) for conveying parts is arranged between the vibration disc (16) and the scale division rotating disc, the guide rail (12) is composed of a fixed conveying rail (12a) and an adjustable conveying rail (12b), and the fixed conveying rail (12a) and the adjustable conveying rail (12b) are arranged side by side. An anti-falling-off baffle (9) is arranged on the periphery of the scale division rotating disc in a semi-surrounding mode, and a sliding way (10) for bearing the parts is arranged beside the scale division rotating disc. Pictures of the parts are shot by three CCD cameras from different angles, conveying, detection, sorting and packaging of the standard fasteners can be completed automatically, the system can be used for detecting various standard fasteners, the system can prevent the standard fasteners from falling off, and meanwhile the system can adapt to to-be-detected parts of different specifications. The machine vision detection system is good in generality, high in automation degree and high in detection efficiency.

Description

technical field [0001] The invention belongs to the technical field of detection devices, and in particular relates to a machine vision detection system for standard fasteners. Background technique [0002] In recent years, foreign countries have done a lot of research on the use of machine vision technology for quality inspection, and obtained many important results. Visual inspection has the advantages of non-contact, fast speed, high precision, strong anti-interference ability, etc. It has an important application prospect in modern manufacturing industry. With a wide range of applications, visual inspection technology provides an ideal means to solve online measurement problems. In the 1980s, the American National Bureau of Standards made a prediction based on the survey: 80% of the industrial inspection work in the future will be completed by visual inspection technology. [0003] As basic parts, standard fasteners are widely used in many industries of the national ec...

AI Technical Summary

Problems solved by technology

[0006] First, the detection mechanism can detect fewer functions, and the scope of application is narrow

For example, thread detection can only detect the presence or absence of tapping, whether the length is sufficient, etc., but cannot detect whether the thread pitch and tooth shape are qualified, and the detection accuracy is not high, and there are still high defective products after detection

[0007] Second, a detection device can only detect one type of part. Standard fastener companies generally produce a variety of parts, such as screws, nuts, bolts, etc. If automatic detection devices are used, multiple sets of different detection devices must be purchased. Device testing, enterprise production investment increased

The detection disk of the existing detection device needs to make a detection disk corresponding to each specification of the part, and the corresponding detection disk should be replaced when the parts of different specifications are to be tested, which causes problems such as increased cost of the detection device and low detection efficiency

[0009] Fourth, the existing detection device only detects defective products, and 1-2 workers are required to pack the parts that pass the test. The problems of work efficiency and labor cost of the enterprise have not been completely resolved.

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