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Method and device for monitoring electrode wear state of resistance spot welding tongs

A wear state, resistance spot welding technology, applied in welding monitoring devices, resistance welding equipment, electrode maintenance, etc., can solve problems such as affecting the production rhythm of automobile production lines, and achieve the effect of preventing welding tong electrodes from working with diseases and improving work efficiency.

Active Publication Date: 2022-02-15
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when carrying out this method, it is necessary to stop the resistance spot welding operation of the welding tongs, and carry out empty welding under the condition of no welding materials, which will seriously affect the production beat of the automobile production line

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  • Method and device for monitoring electrode wear state of resistance spot welding tongs
  • Method and device for monitoring electrode wear state of resistance spot welding tongs

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Embodiment Construction

[0023] In order to further illustrate the technical means and functions adopted by the present invention to achieve the intended invention purpose, the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0024] The invention provides a method and a monitoring device for monitoring the wear state of electrodes of resistance spot welding tongs. The method can accurately monitor the wear state of electrodes without stopping production, thereby improving production efficiency.

[0025] figure 1 Shown is the flow chart of the method for monitoring the electrode wear state of the resistance spot welding tongs provided by the embodiment of the present invention, as figure 1 As shown, the resistance spot welding gun electrode wear state detection method provided by the embodiment of the present invention includes the following steps:

[0026] S1: When performing resistance spot welding, detect and store the re...

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Abstract

A method and device for monitoring the wear state of electrodes of resistance spot welding tongs, the method comprising the following steps: S1: during resistance spot welding, detecting and storing the resistance value of electrodes of welding tongs during each resistance spot welding process; S2: Obtain the previous average resistance value of the electrode of the welding tongs during the working process after the latest electrode grinding, and the first average resistance value of the electrode of the welding tongs during the working process in the first setting times; S3: The first average resistance value is compared with the previous average resistance value, and if the comparison result meets the grinding determination condition, a prompt for grinding the electrode of the welding gun is issued. The method can more accurately monitor the wear state of the electrode without stopping production, thereby improving production efficiency.

Description

technical field [0001] The invention relates to the technical field of vehicle manufacturing, in particular to a method and a monitoring device for monitoring the wear state of electrodes of resistance spot welding tongs. Background technique [0002] In the process of resistance spot welding of body-in-white, after a certain number of welding spots are welded, a certain amount of oxide will be formed on the electrode surface of the electrode cap, which will seriously affect the welding quality, and the electrode surface needs to be re-grinded. Resistance spot welding can be performed again to ensure the quality of resistance spot welding. [0003] In the automatic body production line, under normal circumstances, a welding tong needs to weld different grades of metal materials at different times. For example, it may successively weld sheet metals of various materials such as low alloy steel, high strength steel, and hot-formed steel. This makes it difficult for technicians...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K11/25B23K11/30B23K11/36
CPCB23K11/256B23K11/36B23K11/3072B23K11/3063
Inventor 黄露曹灿张苏强冯波丁华
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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