Spot welding nugget form detection device and method
The technology of a detection device and detection method is applied in the direction of electromagnetic measuring device, size/direction of magnetic field, electric/magnetic depth measurement, etc., which can solve the problems of high requirements for detection personnel and low degree of automation, so as to eliminate noise interference and improve Effects of stability, weight and size reduction
Active Publication Date: 2021-01-08
上海达铭科技有限公司
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Problems solved by technology
At present, the ultrasonic non-destructive testing of spot welding quality mainly relies on the operator to hold the probe to locate the solder joints, and then directly evaluate the quality of the solder joints through an ultrasonic detector, which has a low degree of automation and high requirements for testing personnel.
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[0024] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
[0025] The first embodiment of the present invention relates to a spot welding nugget detection device, which includes a plurality of magnetic sensors and a calculation module.
[0026] Such as figure 1 As shown, the plurality of magnetic sensors are arranged in an array of m rows and n columns, the size of the array of the plurality of magnetic sensors is larger than the size of the spot welding nugget to be measured, and the...
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The invention relates to a spot welding nugget form detection device, which comprises a plurality of magnetic sensors and a calculation module. The plurality of magnetic sensors are arranged in an array form of m rows and n columns, the size of the array form of the plurality of magnetic sensors is greater than that of a to-be-detected spot welding nugget, and the magnetic sensors are used for detecting magnetic induction intensity; and the calculation module determines the shape of the weld nugget according to the magnetic induction intensity detected by each magnetic sensor and calculates the parameters of the weld nugget. The invention further relates to a method for detecting the spot welding nugget form by using the detection device. According to the invention, the size and depth of aspot-welded weld nugget can be detected.
Description
technical field [0001] The invention relates to the technical field of spot welding quality detection, in particular to a detection device and method for spot welding nugget morphology. Background technique [0002] Resistance spot welding is widely used. The spot welding structure has the advantages of light weight, high static strength, good reliability, stable performance and easy automation. It is the main connection method between metal plates. Spot welding applies and maintains a certain pressure on the workpiece to be welded through the electrode, so that the workpiece is in stable contact, and then the current output by the welding power supply passes through the workpiece to be welded and their contact surface to generate heat, the temperature rises, and the local formation of the melting contact point solder joints. [0003] With the development of spot welding technology and automated production lines, enterprises have higher and higher requirements for the quali...
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Login to View More IPC IPC(8): G01B7/28G01B7/26G01R33/02
CPCG01B7/28G01B7/26G01R33/02
Inventor 于润桥夏桂锁杨勇捍胡博程强强程东方
Owner 上海达铭科技有限公司