Metal working – Method of mechanical manufacture – Work holding
Patent
1990-08-27
1993-05-04
Spar, Robert J.
Metal working
Method of mechanical manufacture
Work holding
100224, 100229R, 100918, 269 22, 269 99, 269101, 269289MR, 414676, B30B 1500
Patent
active
052069826
ABSTRACT:
Structure for and method of die transfer. The structure comprises low friction bearing structures set into elongated T-slot bars secured in parallel, transverse spaced apart relation on a bolster plate and a die transfer truck table top actuable in response to the table top being raised to the level of the top of the T-slot bars with the table adjacent the bolster plate to raise a die positional on either the truck or bolster plate and facilitate universal movement of the die in a plane parallel to the top of the bolster plate. V-block and pin structure for centering the die on the bolster plate and die clamping structure including a washer having one straight edge and which moves axially of a bolt with a nut are also part of the die transfer structure. The method comprises providing T-slots on a bolster plate with the elongated T-slot bars centering the die on the bolster plate with the V-block and pin structure and selectively actuating a plurality of the low friction die pads simultaneously to permit universal, substantially friction free movement of a die in a plane parallel to the top of the bolster plate in response to arrival of the top of the table top at the top of the bolster plate.
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Krizek Janice
Spar Robert J.
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