On-line measurement compensating mechanism for laser beam welding
A laser welding and compensation device technology, which is applied in laser welding equipment, welding equipment, measuring/indicating equipment, etc., can solve the problems of not providing real-time online detection and control methods for weld seams, and achieve shape control and performance control Effect
Active Publication Date: 2011-02-16
DG HUST MFG ENG RES INST +1
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[0003] The Chinese patent application number is 02151438.0, and the name of the invention is: three-dimensional shape object welding method and its device. The application provides that when welding a three-dimensional shape object, the offset of the weld seam position is first obtained by using the camera, and the controller gives the correction accordingly. Data-driven control of the welding head for welding, this technology does not provide a method for real-time online detection and control of the weld
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[0009] The present invention will be further described below in conjunction with accompanying drawing:
[0010] See attached figure 1 , with figure 2 As shown, a laser welding online measurement and compensation device includes a numerically controlled three-axis laser welding machine tool 1, and a first numerically controlled rotating shaft 2 and a second numerically controlled rotating shaft 3 are connected to the numerically controlled three-axis laser welding machine tool 1. The laser welding joint 4; the laser welding joint 4 is connected with a camera device 5; the installation position of the camera 6 arranged on the camera device 5 is located at the front end distance L of the laser welding joint 4; the camera device 5 is also provided with a third numerical control rotation Axis 7, the fourth CNC rotary axis 8.
[0011] This device is connected on the laser welding head 4 and has the 3rd digital control rotating shaft 7, the 4th numerical control rotating shaft 8, ...
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The invention relates to the technical field of a laser welding device, in particular to a laser welding online measurement compensating device, which comprises a numerical control three-axis laser welding machine tool connected with a laser welding joint with two numerical control rotary axes; the laser welding joint is connected with a camera device; the position, in which the camera device is mounted, is located in a position which is a distance L from the front end of the laser welding joint; the camera device is further provided with two numerical control rotary axes. The laser welding method and the device thereof can perform the online detection for the joint edge structure and the adjustment of the welding technique parameters on a real-time basis, so that the three-dimensional joint edge structure of a composite member has scene adaptability, that is, the welding technique parameter serves the automatic change adaption function of the welded seams on a real-time basis, thereby realizing the shape control and the performance control of the laser welding on a real-time basis.
Description
technical field [0001] The invention relates to the technical field of laser welding devices, in particular to an online measurement and compensation device for laser welding. Background technique [0002] In fields such as petrochemical, aerospace and military, parts such as pipelines and missile shells are often made by tailor welding of multiple pieces. This type of parts is a three-dimensional object that combines multiple parts to create a space, and its parts are stitched together to form a three-dimensional curve in space. Due to the shape error caused by the processing of such combined parts, the deviation caused by the welding and clamping of the combined parts, the shape error of the combined parts caused by the thermal deformation of the parts during laser welding, and other factors, it will make welding There is a certain difference between the shape of the seam and the theoretical design, which makes the joint width of the parts change to a certain extent along...
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IPC IPC(8): B23K26/20B23K26/08B23Q17/20B23K26/30
Inventor 李斌段正澄黄禹毛新勇龚时华蔡立兵周辅林
Owner DG HUST MFG ENG RES INST