Date post: | 29-Dec-2015 |
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Braas Company Info Founded in 1961 by Jim Braas
ESOP Company
4 physical branches – MN, WI, IL, FL (+ IA,SD,MX)
Fluid Power and Motion Control/Automation focus
105 employees
Over 15 years in Machine Vision
Industries Served: Medical, Electronics, Pharma, Automotive Tier, Packaging
Application Data Part is automotive fuse block assembly.
Goal: Identify bent & missing pins inside of connector sockets.
Pin locations must be relative to each other within +/- .005”
3 sockets per assembly. Each required Hi-Res camera to achieve required resolution (1376 x 1035).
Different lighting required for each socket due to shape and depth differences.
Hardware selected: VA41 w/ 3, Mpixel cameras.
Socket 1 Details
Multiple pin heights
Reflective particles in socket housing
Different sized pin tips
Red LED Dome light selected.
Socket 2 Details
Consistent heights
Reflective particles in socket housing
Pins high in Socket
Red LED Low Angle Ring Light selected.
Socket 3 Details
Consistent heights
Reflective particles in socket housing
Pins LOW in Socket
Array too wide for Dome.
Red LED Low Angle Linear arrays
INspect Solution (Locator & Pin Tips) Housing
Socket used as Locator
Match Tool used to find pin tips
Inspect Solution (Location of Pin Tips)
Match Tool Used to find pin tips
Model drawn around entire perimeter of pin to minimize errors from background (dust). Search widow enlarged to capture pin movement
Point tool enabled to track pin movement from nominal part model
Detail of Pin Tip Match Tool
Inspect Solution (Distance between pins)
Length Tools attached to center point of pin tip Match tools
Length tools used to check distance from one pin to another for interface with plug
Inspect Solution (Pin Array to Socket Edge)
Mid Point calculated between pin tips 2 point tools and pencil tool used to generate line on socket edge Distance from mid point to socket edged calculated (to account for interface with mating
plug) One Distance Tool used for each set of pin tips (all reference same socket edge). One tool
shown for clarity).
Additional application info
Additional VA21 also used to detect placement and orientation of mounting feet, and to read bar code under fuse box.
Wrap Up
Items sold for application 1 VA41 w/ 3 Mpixel cameras 1 VA21 w/ 2 low res cameras 1 LED Dome, 1 LED Low Angle, 2 LED Linear Arrays, 2 High Freq florescent
(VA21) 5 lenses and extension tubes of various sizes 2 power supplies 1 Industrial Switch
Additional Notes 2 additional systems have been sold for similar applications to this customer. Currently customer has 9 Dalsa/IPD systems in house. Former DVT/Cognex user. Customer now looking at Sherlock for future applications. They have grown
more comfortable in vision programming, and are enjoying the flexibility of Sherlock