Generally speaking, the SMT industry knows that the SMT suction nozzle is a key component of the smt placement machine, which is used to pick up and place SMT components.
SMT pick & place machines on the market have a variety of nozzles, which are made of steel, ceramic, plastic steel, plastic, aluminum alloy, iron, etc. According to the shape, there are round holes, square holes, V-shaped, etc., and there are many kinds according to different sizes.
So, what are the functions of suction nozzle of pick and place machine?
The suction nozzle of the pick and place machine is not only the key part of the machine to paste and release the sucked components, but also the background when the camera of the optical vision system takes pictures. It mainly uses the suction effect of vacuum to suck the components and uses air blowing to put the components adsorbed on the suction nozzle on the coordinate position of the circuit board.
When the suction nozzle of the pick and place machine sucks components, it is necessary to ensure that the center of the component, the center of the suction nozzle, and the space center of the obtained image should be coincident to achieve the ideal situation. The adjustment of the optical vision system is actually to compensate for the deviation caused by the misalignment in the actual work.
Different placement components need to be sucked by different suction nozzles of pick and place machines. Almost every suction nozzle has a reflective background, which is mainly to have a good background when the image is taken, and ensure that the target information is accurately highlighted during image processing. When picking up the image, the suction nozzle of the machine serves as the background to enhance the contrast of the image of the component and make it more clearly visible.