Processor and method for developing a set of admissible fixture designs for a workpiece

Patent · Fri Jan 01 00:00:00 EST 1999

OSTI ID:872083

Brost, Randolph C ^[1]; Goldberg, Kenneth Y ^[2]; Canny, John ^[3]; Wallack, Aaron S ^[4]

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1. 4204 Landau NE., Albuquerque, NM 87111
2. 1006 W. Edgeware Rd., Los Angeles, CA 90026
3. Computer Science Division, 529 Soda Hall, UC Berkeley, CA 94720-1776
4. 244 Wilson Way, Albany, CA 94710

Methods and apparatus are provided for developing a complete set of all admissible Type I and Type II fixture designs for a workpiece. The fixture processor generates the set of all admissible designs based on geometric access constraints and expected applied forces on the workpiece. For instance, the fixture processor may generate a set of admissible fixture designs for first, second and third locators placed in an array of holes on a fixture plate and a translating clamp attached to the fixture plate for contacting the workpiece. In another instance, a fixture vise is used in which first, second, third and fourth locators are used and first and second fixture jaws are tightened to secure the workpiece. The fixture process also ranks the set of admissible fixture designs according to a predetermined quality metric so that the optimal fixture design for the desired purpose may be identified from the set of all admissible fixture designs.

• Research Organization: AT&T
• DOE Contract Number: AC04-76DP00789
• Assignee: Brost, Randolph C. (4204 Landau NE., Albuquerque, NM 87111);Goldberg, Kenneth Y. (1006 W. Edgeware Rd., Los Angeles, CA 90026);Canny, John (Computer Science Division, 529 Soda Hall, UC Berkeley, CA 94720-1776);Wallack, Aaron S. (244 Wilson Way, Albany, CA 94710)
• Patent Number(s): US 5856924
• OSTI ID: 872083
• Country of Publication: United States
• Language: English

Related Subjects

processor
method
developing
set
admissible
fixture
designs
workpiece
methods
apparatus
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complete
type
ii
generates
based
geometric
access
constraints
expected
applied
forces
instance
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third
locators
placed
array
holes
plate
translating
clamp
attached
contacting
vise
fourth
jaws
tightened
secure
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ranks
according
predetermined
quality
metric
optimal
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desired
purpose
identified
processor generates
admissible fixture
fixture designs
type ii
applied force
predetermined quality
complete set
fixture processor
applied forces
fixture process
fixture design
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