Processor and method for developing a set of admissible fixture

Details Processor and method for developing a set of admissible fixture Processor and method for developing a set of admissible fixture

1995-06-06

1996-08-13

Envall, Jr., Roy N.

Boots, shoes, and leggings

36447424, 364512, G06F 1900

Patent

active

055463142

ABSTRACT:
A fixture process and method is provided for developing a complete set of all admissible fixture designs for a workpiece which prevents the workpiece from translating or rotating. 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 vice 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.

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Kyoung Hung Kim "A System For Automated Fixture Planning with Modular Fixtures" May 1993, pp. 1-149.
Hazen et al. "Workholding automation: innovation in analysis, design, and Planning", Manufacturing Review vol. 3, No. 4, Dec. 1990, pp. 224-237.

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