Study for designing fixtures considering dynamics of thin-walled plate- and box-like workpieces.

Daimon, Mamoru; Yoshida, Takeo; Kojima, Noriaki; Yamamoto, Hideyuki; Hoshi, Tetsutaro

doi:10.2493/jjspe1933.51.2308

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1989

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“…Finally, after clamps are applied, the fixture should completely restrain the workpiece to counter any possible cutting forces and couples in machining stages. Although workpiece deformation under clamping and cutting forces is an important subject, it has been dealt with in Hoshi (1985) and Daimon and Yoshida (1985) using finite element analysis techniques and is not covered in this paper.…”

Section: Introductionmentioning

confidence: 99%

A Mathematical Approach to Automatic Configuration of Machining Fixtures: Analysis and Synthesis

Chou

Chandru

Barash

1989

Journal of Engineering for Industry

203

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A Mathematical Approach to Automatic Configuration of Machining Fixtures: Analysis and SynthesisDrawing on screw theory and engineering mechanics, a mathematical theory for automatic configuration of machining fixtures for prismatic parts is developed. There are two parts in the theory: analysis and synthesis. The following functions of fixtures are analyzed: deterministic workpiece location, clamping stability, and total restraint. The synthesis of fixtures includes the determination of locating and clamping points on workpiece surface and the determination of clamping forces. The theory deals with the general case of 3-dimensionalparts, polygon support (as opposed to three-point support), and multiple machining operations.

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Section: Introductionmentioning

confidence: 99%