Work holders – Plural holders to hold workpieces relative to each other – Workpieces parallel to each other
Patent
1993-05-17
1996-03-12
Watson, Robert C.
Work holders
Plural holders to hold workpieces relative to each other
Workpieces parallel to each other
269154, 269155, 269164, 269282, 269242, B25B 110
Patent
active
054979803
ABSTRACT:
The present invention provides precision machine vise equipment for use in the NC machining of workpieces which improves the efficiency of the operation by making it possible to insert, secure, and machine some plural number of workpieces, such as two, or more preferably, four, in each cycle of machine operation, while causing each of said workpieces to be precisely located with respect to each of three mutually perpendicular datum planes, and without the necessity of having the machinist or machine operator conduct a positioning or squaring operation. This is done by providing, in accordance with the present invention, in the first place, a two-place precision machine vise of the type described in U.S. Pat. No. 4,529,183, and in addition, an assembly, for use in place of the fixed central jaw thereof, which possesses the necessary attributes or features more particularly herein described and defined, namely, certain surfaces which are so located and oriented and provided with precise (ground-and-polished) finishes, plus the necessary means for manipulating the movable jaw members of the said assembly to enable it to operate selectively, as desired, to grasp or to release a workpiece in contact therewith.
REFERENCES:
patent: 4529183 (1985-07-01), Krason et al.
patent: 4736934 (1988-04-01), Grech
patent: 4750722 (1988-06-01), Chick
patent: 4969637 (1990-11-01), Nishimura
patent: 5098073 (1992-03-01), Lenz
patent: 5242159 (1993-09-01), Bernstein
Linkhauer John W.
Watson Robert C.
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