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Internal details of a two head, gantry style pick-and-place JUKI SMT machine. In the foreground are tape and reel feeders, then the (currently empty) conveyor belt for printed circuit boards, and in back are large parts in a tray. The gantry carries two pickup nozzles, flanking a camera (marked "do not touch" to avoid fingerprints on the lens).
Numerical control pick-and-place machines remove the parts from the tapes, tubes or trays and place them on the PCB. [7] The boards are then conveyed into the reflow soldering oven. They first enter a pre-heat zone, where the temperature of the board and all the components is gradually, uniformly raised to prevent thermal shock.
A pick and placement machine is a robotic style machine that places some variety of types of components. It includes features such as: component pickup feeder locations, vacuum pickup, vision system, automatic component realignment, repeatable placement accuracy, and transportation system for PCBs.
During automated SMT pick-and-place, this happens mostly if the mechanical pressure of the SMD placer nozzle is too low. If the MELF components are placed into the solder paste with enough pressure, then this problem can be minimized. Care must be taken with glass diodes which are less mechanically robust than resistors and other MELF components.
Pick and place machines are another application for Cartesian coordinate robots. For example, overhead gantry Cartesian robots are applied for continuous parts loading and unloading on CNC lathes production lines, performing 3-axis (X, Y, Z) pick and place operations of heavy loads with high speed performance and high positioning accuracy.
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Pick and place is the act of picking things up from one location and placing them in another. Specific cases include: picking and placing is one of the major uses of industrial robots; in the context of electronics, SMT placement equipment
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