Ultrasonic automatic detection device and method for three-layer board spot welding joint
An automatic detection device, ultrasonic technology, applied in measuring devices, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, using sound waves/ultrasonic waves/infrasonic waves for material analysis, etc., can solve problems such as detection blind spots and easy detection blind spots
Active Publication Date: 2021-03-23
JILIN UNIV
View PDF13 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The object of the present invention is to provide an ultrasonic automatic detection device and method for spot welding joints of three-layer boards, which solves the problem of detection blind spots that are prone to occur in the ultrasonic detection of three-layer board spot welding in the prior art
The invention can detect the spot welding of three-layer boards of equal thickness or unequal thickness, can detect and analyze the solder joints of three-layer boards sequentially on both sides, and solves the problem of detection blind spots
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0050] The detailed content of the present invention and its specific implementation will be further described below in conjunction with the accompanying drawings.
[0051] see Figure 1 to Figure 8 As shown, the ultrasonic automatic detection device and method for three-layer plate spot welding joints of the present invention are suitable for ultrasonic detection of equal-thickness or unequal-thickness three-layer plate spot welding. For spot welding joints of three-layer boards, there are detection blind spots in the original ultrasonic testing method, so the spot welding of three-layer boards requires double-sided inspection and comparative analysis. The invention realizes the positioning of the scanning starting point by touching the travel switches in the x, y, and z directions; the welding piece is turned over by the rotary motion of the welding piece fixing rotation mechanism, and the welding piece is realized from the upper surface (A surface) and the lower surface (B ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to an ultrasonic automatic detection device and method for a three-layer plate spot-welded joint, and belongs to the field of ultrasonic quality detection. A two-dimensional sliding table of the device is fixed to a support of a weldment fixing and rotating mechanism, and a probe clamp is fixed to the two-dimensional sliding table, wherein the X-direction and Y-direction quantitative movement is achieved through the transmission of a stepping motor and a synchronous belt. The stepping motor and a micro motor are connected with a servo motor driver, and an ultrasonic probeexcitation signal is connected with an ultrasonic microprocessor through a network cable. A weldment is turned over through a rotating motion of the weldment fixing and rotating mechanism, so that ultrasonic detection is carried out on the upper surface (surface A) and the lower surface (surface B) of the weldment respectively; the consistency of detection paths of the upper surface (surface A) and the lower surface (surface B) and one-to-one correspondence of detection points are ensured through a specific motion control method. Automatic ultrasonic detection of three-layer plate spot welding is achieved, and the reliability of three-layer plate spot welding quality detection is improved.
Description
technical field [0001] The invention relates to the field of ultrasonic quality inspection, in particular to an ultrasonic automatic inspection device and method for spot-welded joints of three-layer boards of equal or unequal thickness, which assists the quantitative movement of an ultrasonic probe to scan the area where the welding spot is located. Background technique [0002] Resistance spot welding occupies a large proportion in the welding and manufacturing process of stainless steel car body, and is a key technology in car body manufacturing. The connection between a large number of car body components is completed by resistance spot welding. In the automobile structure, due to the limitation of design conditions, sometimes three-layer thin plates are used for spot welding at certain positions. In response to the technical requirements for energy saving, emission reduction and body weight reduction of automobiles, advanced high-strength steel materials represented by ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/04G01N29/22G01N29/265
CPCG01N29/04G01N29/225G01N29/265G01N2291/0234G01N2291/2672
Inventor 徐国成王丁冉董娟谷晓鹏
Owner JILIN UNIV