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Europlacer's adaptive positioning software.


3DPS Minicomputer series from Bull HN.

1. (language, text) DPS - Display PostScript.
2. (language) DPS - A real-time language with direct expression of timing requests.

["Language Constructs for Distributed Real-Time PRogramming", I.
 adaptive positioning software and contact sensor system is used on placement machines to optimize pick and place of components with turret heads (Mach.) a vertical cylindrical revolving tool holder for bringing different tools into action successively in a machine, as in a lathe.

See also: Turret
 fitted with accurate contact sensors. This permits the machine to know precisely when it contacts a component or the board.

[ILLUSTRATION OMITTED]

Component pickup is compensated in x, y and z for each part type individually. During the picking sequence, the APS system compensates different picking heights. The system is said to eliminate the need for manual picking adjustments. By automatically adjusting the pick height, there is less chance of nozzle bounce and hence, fewer miss-picks. The result is greater reliability. Feeders incorporate their own fiducial mark See: collimating mark. , enabling fast, automatic calibration of pickup position when loaded to the machine. Additionally, this feature provides fast product changeovers.

3DPS also compensates for board bow and twist on placement. Placement height is adjusted to reflect a similar board height to adjacent components. The placement force is optimum, even on a warped PCB PCB: see polychlorinated biphenyl.
PCB
 in full polychlorinated biphenyl

Any of a class of highly stable organic compounds prepared by the reaction of chlorine with biphenyl, a two-ring compound.
. More precise placement height gives greater placement accuracy. The automatic z placement adjustment feature divides a board into zones. After a component is placed in one zone, the possible correction will apply on this zone. If the correction is significant, a partial correction will be done on the adjacent zones, increasing reliability. There is no derating Derating is the technique employed in power electrical and electronic devices wherein the devices are operated at less than their rated maximum power dissipation taking into consideration the case/body temperature, ambient temperature and the type of cooling mechanism used.  and the automatic optimization of z travels reportedly results in improved throughput and speed.

Benefits of the system include no-stress and smooth axis movements, and continuous adjustments in real time.

The software can be integrated with a package that include traceability tools for full data logging (data) data logging - (data acquisition) Storing a series of measurements over time, usually from a sensor that converts a physical quantity such as temperature, pressure, relative humidity, light, resistance, current, power, speed, vibration into a voltage that is then converted  for component-level build traceability; component outline auto-generation, a GUI (Graphical User Interface) A graphics-based user interface that incorporates movable windows, icons and a mouse. The ability to resize application windows and change style and size of fonts are the significant advantages of a GUI vs. a character-based interface.  that automatically creates any type of new package, reportedly in less than a minute; and wireless real-time communication between feeders.

Available from Europlacer, europlacer.com.
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Copyright 2006, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Title Annotation:Equipment Advances
Publication:Circuits Assembly
Date:May 1, 2006
Words:298
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