High-precision visual positioning system and method suitable for conveying of battery piece or silicon chip
A technology for visual positioning and battery slices, applied to circuits, electrical components, conveyor objects, etc., can solve the problems of complex mechanical positioning structure, gaps in screw drive, low repeat positioning accuracy, etc., to achieve accurate positioning, fast response, simple structure
Active Publication Date: 2016-04-20
48TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology
[0003] Traditional silicon wafer / cell equipment often adopts mechanical positioning and multi-eye vision positioning system. The cost of equipment reduces the capacity of the equipment, and there is a gap in the use of screw drive, and the repeat positioning accuracy is also low
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[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0034] Figure 1 to Figure 3 It shows an embodiment of the high-precision visual positioning system applicable to the transmission of cells or silicon wafers according to the present invention. The camera adjustment mechanism 1 above the beat conveyor belt mechanism 2 and the positioning mechanism 3 below the beat conveyor belt mechanism 2. The camera adjustment mechanism 1 includes a camera 4 and a camera mounting frame that can drive the camera 4 to move along the X-axis direction and the Y-axis direction. 31. The beat-type conveyor belt mechanism 2 is used to intermittently transfer battery slices or silicon wafers 25. The positioning mechanism 3 includes a suction cup 17, a lifting drive 32, a rotating drive 33 and an adjustment frame 34. The suction cup 17 is used to hold the battery slices or silicon slices. The silicon chip 25...
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The invention discloses a high-precision visual positioning system suitable for the conveying of a battery piece or a silicon chip. The system comprises a beat-type conveying belt mechanism, a camera adjustment mechanism, and a positioning mechanism. The camera adjustment mechanism comprises a camera and a camera installation frame which can drive the camera to move in the X-axis direction and Y-axis direction. The positioning mechanism comprises a sucking disc, a lifting drive piece, a rotating drive piece, and an adjustment frame. The sucking disc is used for sucking the battery piece or the silicon chip, and the lifting drive piece is used for driving the sucking disc to rise or fall. The adjustment frame is used for driving the sucking disc to move in the X-axis direction and Y-axis direction. The conveying direction of the beat-type conveying belt mechanism is taken as the X axis. The downstream side of the camera adjustment mechanism is provided with an ink-jet printing unit or a detection unit. The system is simple in structure, is low in cost, and is high in positioning precision. A positioning method provided by the invention comprises the steps: adjusting the position of the camera, defining a positioning reference, carrying out photographing, calculating the offset, starting photographing, adjusting the position of the silicon chip, and carrying out printing or detection. The method is convenient to operate, and is precise in positioning.
Description
technical field [0001] The invention relates to the technical field of solar cell preparation, in particular to a high-precision visual positioning system and method suitable for cell or silicon sheet transmission. Background technique [0002] With the continuous development of the field of solar cells, the requirements for the fragmentation rate of silicon wafers / cells in the photovoltaic industry chain are getting higher and higher, the positioning accuracy is getting higher and higher, and the maintenance is getting easier and simpler. It is one of the main ways to reduce the fragmentation rate of silicon wafers / cells and improve positioning accuracy. [0003] Traditional silicon wafer / cell equipment often adopts mechanical positioning and multi-eye vision positioning system. The cost of equipment reduces the capacity of the equipment, and there is a gap in the use of screw drive, and the repeat positioning accuracy is also low. Contents of the invention [0004] The...
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Login to View More IPC IPC(8): H01L21/68H01L21/677
CPCH01L21/67706H01L21/681
Inventor 樊坤贾京英刘良玉郭立曹骞
Owner 48TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP