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A visual measurement method for the misalignment of thin plate welds for automatic welding

An automatic welding and visual measurement technology, applied in the field of visual measurement, can solve the problem of inaccurate measurement of weld misalignment, and achieve the effects of fast detection speed, low production cost and good stability

Inactive Publication Date: 2020-05-05
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of inaccurate measurement of weld misalignment in the field of industrial applications, the present invention provides a visual measurement method for thin plate weld misalignment oriented to automatic welding

Method used

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  • A visual measurement method for the misalignment of thin plate welds for automatic welding
  • A visual measurement method for the misalignment of thin plate welds for automatic welding
  • A visual measurement method for the misalignment of thin plate welds for automatic welding

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Embodiment 1

[0044] A visual measurement device for the amount of misalignment of thin plate welds for automatic welding, such as Figure 1-3 As shown, it includes: a supporting structure body 1, an image acquisition unit for acquiring image information at the joint of the weld seam, a backlight device 5 for providing a stable optical environment for the image acquisition unit, and a clamping device for clamping the welding workpiece. Device 4, an installation mechanism for controlling the swing of the welding torch 7, an image processing platform for receiving and processing image information, the image processing platform is located in a server (not shown in the drawings) and a fixing mechanism 2 for connecting with other equipment; The supporting structure body 1 is the fixed matrix of other components and components, and the supporting structure body 1 in this embodiment is formed by combining and linking multiple strip-shaped rigid members. The fixing mechanism 2, the image acquisitio...

Embodiment 2

[0074] The automatic welding-oriented visual measurement device for the misalignment amount of thin plate welds of the present invention can be used in conjunction with an automatic welding system, and is connected to the welding torch 7 of the automatic welding system through the installation mechanism and image processing platform of the visual measurement device.

[0075] The installation mechanism includes a motor mounting base 6, a transmission center shaft 8 and a swinging part 9 arranged in sequence from top to bottom. The swinging part 9 is used for installing the welding torch 7. In this embodiment, the motor mounting base 6 is equipped with a DC servo motor.

[0076] In practical applications, the image processing platform of the visual measurement device transmits the measured values ​​of the misalignment on both sides of the weld to the servo control system of the automatic welding system in real time, and the control system sends out a control signal to drive the ce...

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Abstract

The invention provides a visual measurement device and method of oil storage cabinet sheet welding line alignment tolerance. The device comprises a supporting structure body, an image acquiring unit used for acquiring image information at the butt joint of a welding line, a backlight source device used for providing a stable optical environment for the image acquiring unit, a clamping device usedfor clamping a welded workpiece, a mounting mechanism used for controlling a welding gun to swing, an image processing platform used for receiving and processing the image information and a fixing mechanism; the fixing mechanism, the image acquiring unit and the backlight source device are arranged and installed at one side of the supporting structure body from top to bottom in sequence; the mounting mechanism and the clamping device are arranged and installed at the other side of the supporting structure body from top to bottom in sequence; the image acquiring unit is connected with the imageprocessing platform. By means of the visual measurement device, an image of the welding line is acquired through the image acquiring unit and is processed in real time through an alignment toleranceextracting algorithm, and high-precision measurement of the welding line alignment tolerance is achieved.

Description

technical field [0001] The invention belongs to the field of visual measurement, and in particular relates to a visual measurement method for the amount of misalignment of thin plate welds facing automatic welding. Background technique [0002] With the development of automatic welding technology and image processing technology, automatic welding systems based on visual perception have been widely used in many industrial fields such as automobile manufacturing, aerospace and power electronics. At present, in the field of transformer oil conservator manufacturing, metal corrugated oil conservator has occupied an important market share in my country's power equipment and equipment. However, this type of oil conservator is hollowed out inside and ring-shaped outside. There are many technical difficulties in the automatic welding of the thin plates of the corrugated pipe parts, so the large-scale automatic welding industrial production of the corrugated oil conservator has not be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/01G01N21/95
CPCG01N21/01G01N21/9515
Inventor 王晓哲孙立波张云洲孙永生纪鹏李震昊周博强
Owner NORTHEASTERN UNIV LIAONING