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Talking about the transfer and positioning device of PCB sample board placement equipment
- 2020-05-07-

Talking about the transfer and positioning device of PCB sample board placement equipment

All brandsPCB model patchThe principle of the conveying device of the equipment is basically the same, and they all adopt the conveying track method. The difference is that some placement equipment uses a complete track, such as: Sony equipment E series and F series, JUKI equipment 700 series and 2000 series and other placement equipment. The complete track is mainly used in the PCB sample placement equipment where the placement head moves along the X/Y axis. Some placement equipment’s tracks are divided into three sections, such as Universal's high-speed placement machine 4796L and Sanyo Equipment such as TCM3000 equipment. The segmented track is roughly divided into three sections: the board entrance track, the placement track, and the exit track. It is mainly used when the placement head is fixed and cannot move along the X/Y axis. The coordinate adjustment is moved by the placement table. To complete the PCB sample placement machine.

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In PCB sample placement equipment, PCB positioning methods are generally divided into mechanical positioning and optical positioning of device vision. Mechanical positioning is divided into two methods: splint edge positioning and positioning hole positioning. The advantage of mechanical positioning is that its positioning speed is relatively fast. The disadvantage is that its positioning accuracy is relatively low. It is not suitable for use in some components that require relatively high placement accuracy. It is more suitable for use in general or relatively high placement accuracy requirements. Low components. The coordinate accuracy of the visual positioning of the PCB template mounter equipment mainly depends on the recognition accuracy of the camera and the processing accuracy of the computer, so its positioning accuracy is much higher than that of the mechanical type, but its positioning speed is relatively slow, which is suitable for Some components that require relatively high placement accuracy. Therefore, many high-precision PCB sample placement equipment adopt a composite positioning method, that is, first use mechanical positioning to determine the approximate position, and then use the device vision optical positioning method to determine the precise position of the PCB.

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