Work holders – Relatively movable jaws – Jaw features
Patent
1987-11-16
1989-05-16
Wan, Gene
Work holders
Relatively movable jaws
Jaw features
269271, B25B 516
Patent
active
048303500
ABSTRACT:
The present invention relates to an universal clamping device with multi-purpose clamping surfaces, it is composed of a jaw and one or more jaw seats. Wherein the jaw comprises a plurality of vertical jaw seats and each of said jaw seat comprises a vertical curve wall and a horizontal bottom base, said vertical curve wall comprises an extension rib parallel to the bottom base, said horizontal bottom base comprises a piercing hole whch is relatively in the center of the extension rib. The jaw plate has various different vertical clamping surfaces, it comprises peripherally a ring groove corresponding to said extension rib and has a vertical bottom hole corresponding to the piercing hole of said jaw, the maximum radius of gyration of the jaw plate is smaller than the radius of the curve of vertical wall. A locating device comprises at least one locating pin to insert into both said vertical hole and said piercing hole so that the jaw plate can take the locating pin as an axial center to make rotation on the top of said jaw to change different clamping surface. Furthermore, the locating device has a compensation design to reduce the occurrence of inclination of bellmouth due to long period of performance in clamping work.
REFERENCES:
patent: 2938414 (1960-05-01), Blomme
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