Automatic fastener dismounting system and method based on machine vision

A technology of automatic disassembly and machine vision, applied in manipulators, program-controlled manipulators, metal processing, etc., can solve the problems of poor safety, low efficiency, and high disassembly costs for dismantling workers, and achieve improved operation safety, convenient operation, and high degree of automation Effect

Inactive Publication Date: 2019-03-08
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional fastener disassembly method is realized by manual disassembly, which has low efficiency, poor safety of disassembly workers, and high disassembly cost

Method used

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  • Automatic fastener dismounting system and method based on machine vision
  • Automatic fastener dismounting system and method based on machine vision
  • Automatic fastener dismounting system and method based on machine vision

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Embodiment approach

[0032] The actual operation method is as follows:

[0033] The photoelectric sensor 14 detects the arrival of the workpiece 13, and the cylinder 11 detects the signal of the photoelectric sensor 14 and moves the fixed stop 12 to fix the workpiece 13. The photoelectric sensor 14 automatically triggers the auxiliary light source 3, triggers the industrial camera 4 to capture the image of the workpiece 13, and the single-chip 1 detects After the signal from the photoelectric sensor 14 is reached, the laser ranging sensor 5 is automatically turned on to measure the distance between the industrial camera 4 and the plane of the workpiece 13. The image of the workpiece is transmitted to the industrial computer 2 through the gigabit network cable, and the industrial computer 2 uses the image processing algorithm to identify the tightening of the workpiece 13 The type and size of the fastener, the image coordinates of the fastener, the industrial computer 2 transmits the fastener type, siz...

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Abstract

The invention discloses an automatic fastener dismounting system and method based on machine vision. The working method of the system comprises the following steps that when a photoelectric sensor detects the arrival of a workpiece, the workpiece is automatically fixed by a fixing stopper; an auxiliary light source and an industrial camera are automatically triggered to obtain a workpiece image, and distance data are measured by a single-chip microcomputer and a laser distance measuring sensor; the workpiece image is transmitted to an industrial control computer through a gigabit network cable, and the type and size of a fastener on the workpiece are identified according to an image processing algorithm; data are transmitted to a mechanical arm motion controller to control a mechanical armto automatically change electric screwdriver heads; and the mechanical arm moves to the position of the fastener on the workpiece according to the coordinates of the fastener to automatically dismantle the fastener. The automatic fastener dismounting system is convenient to operate, accurate in positioning and high in intelligence and automation degree and dismounting efficiency, greatly improvesoperation safety, can be used to dismount different types of fasteners in different sizes, and has great popularization value.

Description

Technical field [0001] The invention belongs to the field of automatic disassembly of fasteners on a workpiece. Specifically, it relates to a system and method for automatic disassembly of fasteners based on machine vision. Background technique [0002] With the rapid development of the manufacturing industry, the product replacement cycle is getting shorter and shorter. How to properly handle the huge number of discarded workpieces is an urgent problem that needs to be faced at present. In the process of dismantling discarded workpieces, the fasteners on the workpieces Disassembly is the key issue. The traditional fastener disassembly method is realized by manual disassembly. This disassembly method has low efficiency, poor safety of disassembly workers, and high disassembly cost. Therefore, it is particularly important to seek methods with high disassembly efficiency, good disassembly safety, and reduction of disassembly costs. Summary of the invention [0003] In order to so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/06B25J9/16
CPCB23P19/06B25J9/1687B25J9/1697
Inventor 王开雄费垚东李柏林熊鹰李刚董庆丰侯云范宏杨飞张雨徐万泽王逸涵肖振远
Owner SOUTHWEST JIAOTONG UNIV
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