Visually positioning system for circuit breaker release screw

Abstract

The invention provides a visually positioning system for circuit breaker release screw, which is stable and reliable to realize the rapid and accurate positioning of screws and cuts the long delay testing time for circuit breaker by 30%. The invention comprises an illumination light source, an image acquisition and storage unit, a human computer interface unit, PLC and a crew adjusting and controlling unit. The image acquisition and storage unit comprises an optic lens, a CCD camera, and an image acquisition card. The optic lens is installed on the CCD camera; the output end of the CCD camera is connected with the image acquisition card. The screw adjusting and controlling unit is of a concentric double flexible shaft adjustment structure. The human computer interface unit comprises a monitoring interface and an image processing module. The monitoring interface and the image processing module are connected with each other. The output end of the image acquisition card is connected with the input end of the image processing module; the output end of the image processing module is connected with the input end of the PLC. The output end of the PLC is connected with the concentric double flexible shaft adjustment structure. The light emitted from the illumination light source strikes onto the release screw and is then received by the optic lens.

Description

technical field [0001] The invention belongs to the technical field of detection of low-voltage circuit breakers, and in particular relates to a visual positioning system for tripping screws of a circuit breaker. Background technique [0002] A low-voltage circuit breaker is a switching device used to connect and break power line loads and various short-circuit faults. As the core component of low-voltage power distribution systems, it is widely used in power distribution systems. If the performance indicators such as long time delay and reliability are not up to standard, it will affect the normal operation of the power distribution system, and even endanger the safety of the system and power equipment. Therefore, long time delay detection is an important indicator of circuit breaker products, and fast Accurate positioning is a key step to complete the long-time delay test, and the positioning accuracy of the screw plays a vital role in the long-time delay test of the circu...

AI Technical Summary

Problems solved by technology

[0003] In the past, most of the circuit breaker screw adjustment links were manually operated, which had problems such as large randomness, poor stability, and low production efficiency. Later, the laser dot matrix method was used to position the screws. There are still the following disadvantages: due to the rules of laser dot matrix scanning and positioning, the laser positioning tracking screw has a large time lag; due to the small size of the screw, the deformation of the bimetallic sheet drives the screw to tilt, which affects the laser positioning accuracy

The traditional screw positioning method has been difficult to meet the requirements of automatic, fast and high-precision testing

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