Line-array laser detection equipment and method for smt laser processing
A linear array laser and detection method technology, applied in the direction of optical testing flaws/defects, can solve problems such as increasing labor and cost, increasing product quality reliability, etc., to improve production efficiency, improve detection efficiency and accuracy, and solve problems. The effect of reliability
Active Publication Date: 2017-04-05
KUNSHAN THETA MICRO
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For the production line, this work increases the reliability of product quality and greatly increases labor and cost
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[0022] like figure 1 As shown, the linear array laser inspection equipment for SMT laser cutting steel sheet includes a clamping table, a door-type moving beam, a detection head assembly and a control system; the door-type moving beam includes an X-axis motion assembly and a Y-axis motion assembly; The detection head assembly includes a Z-axis guide rail and a linear array laser ranging sensor. The linear array laser ranging sensor is installed on the Z-axis guide rail and can move vertically along the Z-axis guide rail to adjust the height of the laser sensor. The detection head part is installed as a whole on the X-axis guide rail of the beam.
[0023] The detection head assembly scans the distance of the line segment within the range of detection length D in the Y-axis direction at one time. If the surface of the detected object is within the detection distance range H of the line array laser ranging sensor, the distance value is returned; if it exceeds the detectable dista...
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The invention relates to a linear array laser detection device for steel sheet SMT laser cutting and a detection method therefor. The detection method comprises the following steps that 1, a cut SMT template steel sheet and a stretching frame are loaded on a clamping workbench; 2, a control system controls an X shaft movement assembly and a Y shaft movement assembly to carry out Gong character-shaped scanning; and 3, along a Y-shaft direction, a detection probe in a detection assembly carries out one-step scanning of distances of line segments in a detection rang D; if the surface of the detected objecte is in a detection range H of a high-precision linear array laser distance measuring sensor, a distance value is returned, and if the detected objecte part is outside the detection range H, the data of the part does is not returned so that the position of which data is not returned is determined as a cutting opening part; through determining if the data is returned or not, the position and the shape of the opening part can be determined; and through pattern recognition software of the control system, the recognized figure and an original data figure are compared so that it is determined if the SMT template steel sheet has extra / missing hole defects.
Description
technical field [0001] The invention relates to the field of SMT laser-cut steel sheets, in particular to a device for detecting the number of holes and holes in SMT laser-cut template steel sheets using a non-contact linear array laser sensor. Background technique [0002] At present, SMT template laser cutting technology is widely used. After template cutting is completed by using moving beam high-speed cutting, the template often still has porous and few holes. Manual inspection is generally used now, firstly the cut steel sheet and stretching frame are removed from the cutting equipment ( figure 1 ), and then remove the steel sheet from the stretching frame and place it on the detection table with bottom light. The inspectors print out the data and graphics files with translucent sulfuric acid paper, and then overlap them on the steel sheet. According to the graphics and light transmission, the inspectors need to observe carefully with their eyes to check whether there ...
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IPC IPC(8): G01N21/88
Inventor 魏志凌宁军龚关
Owner KUNSHAN THETA MICRO