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Resistance spot welding counting detection method

A technology of resistance spot welding and detection method, which is applied to resistance welding equipment, counting mechanisms/items, welding equipment, etc., can solve the problems of low production efficiency, counting errors, loss of counts when the resistance spot welding machine is powered off, etc., to improve quality , The effect of preventing leakage of solder joints

Pending Publication Date: 2020-12-01
CHERY AUTOMOBILE CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

In the process of use, the welding point counter has the loss of counting when the resistance spot welding machine is powered off, counting errors, the two welding tongs cannot be used interactively when the same station is reloaded, and it cannot be reported in time when multiple error alarms occur during the welding process. , needs to wait for time to alarm and other defects, cannot meet the needs of on-site use, and the production efficiency is low

Method used

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Embodiment Construction

[0010] A detection method for resistance spot welding counting, comprising the steps of:

[0011] S1: Set the number of welding points n1 of each welding tong;

[0012] S2: The welding tongs start welding, and the counter collects welding signals to count the actual number of welding points;

[0013] S3: After welding, compare the recorded number n2 of welding points with the preset number n1 of welding points of the welding tongs. If n1=n2, the alarm will not alarm; if n1≠n2, the alarm will alarm.

[0014] It should be noted that the number of welding points n1 in step 1 is generally not a definite value, but an interval segment with an upper limit and a lower limit. The number of welding points is n1, which effectively prevents the welding torch from missing solder joints during the welding process, and significantly improves the quality of welding products.

[0015] The condition for the end of welding in step S3 is: the actual welding tongs idle time t1 (that is, the act...

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Abstract

The invention aims to provide a resistance spot welding counting detection method accurate in counting. The resistance spot welding counting detection method comprises the steps that S1, the welding point number n1 of each pair of welding tongs is set; S2, the welding pliers start welding, and a counter collects a welding signal to count the number of actual welding points; and S3, after welding is finished, the recorded welding point number n2 is compared with the preset welding point number n1 of the welding tongs, if n1 is equal to n2, an alarm does not give an alarm, and if n1 is not equalto n2, the alarm gives the alarm. According to the scheme, the recorded welding point number of the welding gun is compared with the set and stored welding point number of the welding gun, so that the problem of missing welding points in the welding process of the welding gun is effectively prevented, and the quality of welded products is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of welding spot counters, in particular to a detection method for resistance spot welding counting. Background technique [0002] At present, resistance spot welding is one of the most important connection methods in the assembly of automobile body-in-white. About 90% of the body-assembly workload is completed. Usually, a car body-in-white has 3000-5000 solder joints. The quality of solder joints directly affects The safety reliability and assembly deviation of the car body, so it is of great significance to monitor whether the solder joint quality is qualified or not in real time. [0003] In the actual production and application process, the counter and the resistance spot welding machine work synchronously. Each resistance spot welding machine is equipped with 1 counter and 2 welding tongs. Every time the welding tongs finish welding a point, it will send a welding completion to the welding point counter....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/11B23K11/36G06M1/272
CPCB23K11/11B23K11/36G06M1/272
Inventor 陈海波汪江宫键
Owner CHERY AUTOMOBILE CO LTD
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