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A resistance point welding process parameter automatic generation method and its system

A technology of resistance spot welding and automatic generation, which is applied in the field of automobile welding manufacturing, can solve problems such as the inability to guarantee the quality of welding spot welding and the impact on vehicle safety performance, and achieve the effects of improving welding quality and efficiency, facilitating operation, and reducing costs

Active Publication Date: 2022-12-02
GEELY AUTOMOBILE GRP CO LTD +1
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Problems solved by technology

Although this application does not need to manually refer to a large number of existing welding parameters, it can not only save the training cost of training engineers, but also save time and cost, but the welding parameters obtained through this application cannot be determined to be the best parameters, and will not be able to Guarantee the welding quality of each welding spot, which has an impact on the safety performance of the vehicle

Method used

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  • A resistance point welding process parameter automatic generation method and its system
  • A resistance point welding process parameter automatic generation method and its system
  • A resistance point welding process parameter automatic generation method and its system

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Experimental program
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Effect test

Embodiment 1

[0060] like image 3 As shown, the automatic generation system of the resistance spot welding process parameters includes: a data acquisition unit 1, the data acquisition unit 1 communicates with the data server in the resistance spot welding workshop through the Internet of Things, and is used to obtain the plate information parameters stored in the data server, Welding process parameters and welding result parameters;

[0061] The evaluation function construction unit 2 is used to establish the welding result evaluation function according to the welding result parameters; specifically, the welding result evaluation function is constructed by the following calculation formula;

[0062]

[0063] Among them, F is the welding result evaluation value; UIP is the quality factor; f is the spatter value; PSF is the process stability factor;

[0064] The model building unit 3 is used to use the plate information parameters and welding process parameters as input, and use the weld...

Embodiment 2

[0087] like figure 2 As shown, the technical solution in this embodiment is basically the same as the technical solution in Embodiment 1, the difference is that the welding result prediction value of the specific plate information parameter is predicted according to the welding result prediction model, and then the corresponding specific plate information parameter is generated. After the welding process parameters with the highest welding result prediction value, it also includes:

[0088] The welding process parameters with the highest welding result prediction value are integrated to form a database of optimal welding process parameters under different plate information parameters. The establishment of the database can directly obtain the optimal welding process parameters according to the plate information parameters in the later use. The itinerary of the database can also be used as the initial setting value of the welding process parameters when the welding commissioni...

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Abstract

The invention provides a method and system for automatically generating process parameters of resistance spot welding, which belong to the technical field of automobile welding and manufacturing. It solves the problem that the welding parameters obtained in the prior art cannot be determined to be the best parameters, and the welding quality of each welding spot cannot be guaranteed. The method for automatically generating resistance spot welding process parameters includes the following steps: obtaining plate information parameters, welding process parameters and welding result parameters; establishing a welding result evaluation function according to the welding result parameters, and then calculating and obtaining the welding result evaluation value according to the welding result evaluation function; The plate information parameters and welding process parameters are used as input, and the welding result evaluation value is used as output to establish a welding result prediction model; predict the welding result prediction value of a specific plate information parameter according to the welding result prediction model, and then generate a welding result prediction corresponding to a specific plate information parameter The welding process parameter with the highest value. The invention can obtain high-quality welding process parameters and improve welding quality.

Description

technical field [0001] The invention belongs to the technical field of automobile welding and manufacturing, and relates to a method for determining resistance spot welding process parameters and a system thereof. Background technique [0002] At present, there are more and more new models launched by major automobile manufacturers, and the time interval between launches is getting shorter and shorter. At the same time, users have higher and higher requirements for quality. As far as manufacturing plants are concerned, various innovative process technologies must be used to win. Resistance spot welding (hereinafter referred to as welding) can realize high-strength connections between plates. In automobile manufacturing, a car contains 3000-5000 resistance spot welding spots, and the welding quality of each spot directly affects the vehicle. safety performance. Therefore, welding is one of the most core processes in vehicle manufacturing, and how to quickly debug the parame...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K11/11B23K11/36
CPCB23K11/11B23K11/36
Inventor 胡晓峰周军邓海军汤耀文江克洪孟乐
Owner GEELY AUTOMOBILE GRP CO LTD
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