Method and device for evaluation of jointing regions on workpieces
AssigneePrecitec Vision GmbH & Co. KG
InventorsJoachim Schwarz, Martin Halschka
Life of this patent
Estimating the term…
Abstract
A method and apparatus for detecting a joint between workpieces is provided. At least one light line is recorded by the light section method to detect the three-dimensional course of the joint and a grey-level image of the joint is also recorded. The grey-level image is evaluated to assess the quality of the joint.
Claims19
Method for detecting weld seam quality in welding workpieces comprising the steps of:
- producing at least one light line over a weld seam;
- recording the at least one light line by a camera sensor in order to detect the three-dimensional course of the weld seam and measure geometrical data of the weld seam;
- recording a grey-level image of the weld seam by a camera sensor and a flash light illumination of the weld seam;
- and
- evaluating the grey-level image for detecting local defects of the weld seam by an image evaluation unit.
Apparatus for the detection of weld seam quality of welded workpieces comprising:
- a light line projecting unit;
- a flash illumination unit;
- a recording unit configured for recording the light line image and a grey-level image;
- and
- an image evaluation unit communicating with the recording unit and configured for evaluating the light line image and the grey-level image, the image evaluation unit being adapted to evaluate geometrical data of the weld seam and adapted to evaluate local defects of the weld seam by image processing of the grey-level image only.
Method for detecting weld seam quality in welding workpieces comprising the steps of:
- producing at least one light line over a weld seam;
- recording the at least one light line by a camera sensor in order to detect the three-dimensional course of the weld seam and measure geometrical data of the weld seam;
- recording a color image of the weld seam by a camera sensor and a flash light illumination of the weld seam;
- and
- evaluating the color image for detecting local defects of the weld seam by an image evaluation unit.
Apparatus for the detection of weld seam quality of welded workpieces comprising:
- a light line projecting unit;
- a flash illumination unit;
- a recording unit configured for recording the light line image and a color image;
- and
- an image evaluation unit communicating with the recording unit and configured for evaluating the light line image and the color image;
- the image evaluation unit being adapted to evaluate geometrical data of the weld seam and adapted to evaluate local defects of the weld seam by image processing of the color image only.
Method for detecting weld seam quality in welding workpieces comprising the steps of:
- producing at least one light line over a weld seam;
- recording the at least one light line by a camera sensor in order to detect the three-dimensional course of the weld seam and measure geometrical data of the weld seam;
- recording a grey-level image of the weld seam by a camera sensor and a flash light illumination of the weld seam;
- evaluating the grey-level image for detecting local defects of the weld seam by an image evaluation unit;
- and
- assessing the quality of spot welds by the image evaluation unit.
Method for detecting weld seam quality in welding workpieces comprising the steps of:
- producing at least one light line over a weld seam;
- recording the at least one light line by a camera sensor in order to detect the three-dimensional course of the weld seam and measure geometrical data of the weld seam;
- recording a grey-level image of the weld seam by a camera sensor and a flash light illumination of the weld seam;
- evaluating the grey-level image for detecting local defects of the weld seam by an image evaluation unit;
- and
- assessing the quality of adhesive beads by the image evaluation unit.
Dependencies are inferred from the claim text.