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Robot laser welding method for skeleton multi-skin components

A laser welding and laser welding technology, applied in laser welding equipment, welding equipment, manipulators, etc., to achieve the effect of improving work efficiency, shortening work time, and ingenious design

Active Publication Date: 2021-12-17
BEIJING HANGTIAN XINFENG MECHANICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a robot laser welding method for skeleton multi-skinned components to prevent product quality problems caused by invisible welding seam positions during welding

Method used

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  • Robot laser welding method for skeleton multi-skin components
  • Robot laser welding method for skeleton multi-skin components
  • Robot laser welding method for skeleton multi-skin components

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044]When the skin frame is welded, the method is completed in accordance with five procedures of installing the frame, teaching the position of the weld seam on the frame, installing the skin, laser marking the welding path on the skin, positioning the skin, and welding. Among them, a low-power laser is used to etch the welding path on the skin. After the skeleton is covered by the skin, the welding position can be determined according to the etching marks, so as to prevent the welding that cannot determine the program record due to the movement of the product during the operation. The quality hidden danger caused by whether the position is consistent with the actual welding position of the product. In general, after all the skins on the skeleton are spot-fixed, the skins are welded.

[0045] Each process completes the work as follows:

[0046] 1. Install the skeleton

[0047] Install the skeleton to be welded on the designated position of the operation table and fix it. ...

Embodiment 2

[0059] In the program of the present invention, the same group of welding path position coordinate information is used to complete the three contents of skin laser marking, skin positioning welding and welding.

[0060] In order to achieve the above object, the program design process of the present invention is as follows:

[0061] 1. Create a laser welding program and insert motion instructions according to the actual situation of the weld path.

[0062] 2. At the starting point of the weld, insert a judgment statement and set the variable weld_var, which can be assigned a value of 1, 2, or 3, representing skin laser marking, skin tack welding, and welding, respectively. When weld_var is assigned a value of 1, the skin laser marking module is called; when weld_var is assigned a value of 2, the skin tack welding module is called; when weld_var is assigned a value of 3, the welding module is called.

[0063] 3. In the skin laser marking module, skin positioning welding module ...

Embodiment 3

[0067] The method will be further described by examples below, as figure 2 As shown, there are two horizontal and vertical ribs on the skeleton, taking welding one of the ribs as an example, the program design process is as follows:

[0068] 1. Create a welding program, insert the required movement points into the program, including the start point, end point, turning point on the weld, etc., and the auxiliary points needed to reach these positions.

[0069] 2. Judging whether to perform tack welding; if the conclusion is true, enter the tack welding module; if the conclusion is false, enter the next judgment.

[0070] 3. In the positioning welding module, insert the laser spot-fixing parameter call function behind each position point that needs to be spot-fixed. Generally, the laser spot-fixing call function should also be inserted after the starting point and end point of welding. The laser dot function selects the laser dot mode, and the laser will output laser light for ...

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Abstract

A method for robot laser welding of skeleton multi-skinned components, comprising the following steps, step 1, installing the skeleton to be welded at a designated position on the operating table, and fixing it; moving the welding robot to the side of the skeleton to be welded, so that the welding robot and the The skeleton keeps the set distance; step 2, set the upper surface of the skeleton to be welded as the first surface, select a weld seam on the first surface, move the welding robot to adjust the laser welding torch head to the first surface and select the starting point of the weld seam At , the staff starts from the starting point of the selected weld on the first surface to teach the welding robot the points that need to be welded on the weld, so that the welding robot collects all the selected welds on the first surface of the skeleton to be welded The position information of the point that needs to be welded; the design of the invention is ingenious, which prevents product quality problems caused by the invisible position of the weld during welding, and shortens the working time of the staff during production, and also shortens the entire working time. work efficiency.

Description

technical field [0001] The invention is a robot laser welding method for skeleton multi-skin components, and relates to a laser welding method for skeleton skin component products, especially a laser welding method for thin-walled skin products with a skin thickness below 2mm. Background technique [0002] In the prior art, all the skins are generally fixed on the skeleton by tack welding first, and then integrally welded. When there are multiple skins, this welding will deform the skeleton unevenly, resulting in product defects. [0003] If the tacking welding of both sides of the skin is completed first, after the tacking welding of one side of the skin is completed, the skeleton needs to be turned over, and the tacking welding of the other side of the skin is carried out. After the spot fixing of the skins on both sides is completed, the skin welding is carried out. The skeleton needs to be reloaded during this process. The welding position recorded by the robot is the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/21B23K26/24B25J9/22
CPCB23K26/21B23K26/24B25J9/0081
Inventor 徐艳利李瑞
Owner BEIJING HANGTIAN XINFENG MECHANICAL EQUIP