Weld joint tracking detection equipment and method

A tracking detection and equipment technology, applied in the field of detection, can solve the problems of difficult welding seam position tracking and detection, and achieve the effects of accurate welding seam detection and tracking, convenient operation and simple structure

Active Publication Date: 2013-01-16
TSINGHUA UNIV
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Problems solved by technology

[0003] In the prior art, line structured light seam tracking and detection technology has been widely used, but line structured light seam tracking and detection is only suitable for conventional types of seam tracking with large width
For butt welds or welds with a small width, such as welds with a width of less than 1mm, it is difficult to track and detect the position of the weld due to the width limitation of the line structured light

Method used

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  • Weld joint tracking detection equipment and method
  • Weld joint tracking detection equipment and method
  • Weld joint tracking detection equipment and method

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Embodiment Construction

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0027] In the description of the present invention, the orientations or positional relationships indicated by the terms "upper", "lower" and the like are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and do not require that the present invention must be based on a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention. In the description of the present invention, "downstrea...

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Abstract

The invention discloses weld joint tracking detection equipment, which comprises a structured light generator for generating structured light, a beam expanding lens, a beam shaping device and an imaging device, wherein the beam expanding lens is positioned at the downstream of the structured light generator and is used for expanding beams of the structured light emitted by the structured light generator; the beam shaping device is positioned at the downstream of the beam expanding lens and is used for shaping the expanded beams to form surface structured light with preset shapes, so that light spots of preset shapes are formed on the weld joints; and the imaging device is used for imaging the light spots of the preset shapes on the weld joints. In the weld joint tracking detection equipment, the butt-jointed weld joints are detected and tracked by adopting the light spots imaged by the surface structured light, and narrow weld joints of which the width is less than 1 millimeter can betracked. The invention also provides a weld joint tracking detection method, which adopts the weld joint tracking detection equipment.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a seam tracking detection device. Background technique [0002] In the field of automatic welding, since the operator is not suitable to enter the welding work area, it is impossible to closely monitor the welding process in real time and make necessary adjustments and controls. Changes in factors such as dimensional errors and position deviations and workpiece heating deformation will cause the position of the joint to deviate from the predetermined path, which will lead to a decrease in welding quality or even failure. Therefore, accurate seam tracking is the key to ensure welding quality. [0003] In the prior art, the line structured light seam tracking and detection technology has been widely used, but the line structured light seam tracking and detection is only suitable for conventional types of seam tracking with a large width. For butt welds or welds with a small wid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02G01B11/26G01B11/24G01B11/30B23K9/127
Inventor 郑军潘际銮
Owner TSINGHUA UNIV
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