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SMT Quick-Tips: Selecting a Pick and Place Machine
Manual and semi-automatic systems
 
A manual pick and place system is desirable for small, growing operations that need to increase their hand-held production volumes incrementally while also improving quality, thus reducing rework or rejects; however, the accuracy of placement is still limited by the capability of the operator. Benefits of a machine-assisted manual system include:
  • Less operator fatigue
  • Fewer placement errors
  • Better control
  • Improved yield, less rework
A machine-assisted manual system can be equipped with features such as an X-Y indexing table with vacuum pickup head or pen; ergonomic fixturing to help relieve operator fatigue; and additional fixturing for θ (rotation) and Z (height) positioning in addition to X and Y.
 
Some machines offer an optional liquid solder paste dispenser, which is applied just before placing the component on the board if a stencil printer has not been used. Additional options include:
  • Component Handling Trays
  • Liquid Dispenser
  • Tape Feeders
  • Feeder Racks
  • Vision Assist option
  • Optional Stands

In most cases, machine assisted manual systems can be purchased with just the bare necessities, and desirable options can be added later as they’re needed.
 
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文章From:http://www.etasmt.com/te_news_industry/2021-08-31/23361.chtml