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US 6,273,434 B1Granted
Capless quick-grip cylinder
OwnerEmil Starkinventor
Life of this patent
Estimating the term…
Abstract
The present invention concerns a method for manufacture and assembly as well as a capless quick-grip cylinder manufactured by this method with a feed nipple for clamping a carrier plate, also called a pallet, which on a machine tool serves to fix work pieces.
Claims19
A method of manufacturing a capless quick-grip cylinder, comprising:
- providing an upper housing having a generally U-shaped profile forming a top wall portion joined as a continuous piece into a downwardly extending side wall, wherein said top wall forms an opening for the passage of a feed nipple, and wherein an underside of said top wall forms least two recesses;
- installing said feed nipple within the housing such that said feed nipple is movable in a direction perpendicular to the top wall between a retracted position and a released position;
- inserting clamping springs in the recesses;
- positioning a cylinder piston with a piston face facing away from the upper surface, wherein the clamping springs urge the cylinder piston away from the upper surface;
- and
- closing a bottom of the housing by inserting a bottom plate.
3 more elements
A quick-grip cylinder, comprising:
- a feed nipple;
- an upper housing having a generally U-shaped profile having a top portion which is joined as a continuous piece into a downwardly extending side wall, wherein said top portion comprises an opening for said feed nipple, said feed nipple being positioned within the housing and movable in a direction perpendicular to the top portion between a retracted position and a released position, said housing further comprising at least two recesses formed in the bottom surface of said top portion;
- at least two clamping springs positioned within the at least two recesses;
- a hydraulic piston positioned within the housing and engaging with the housing the at least two clamping springs;
- and
- a bottom plate formed as a separate and attached to said housing, said bottom plate enclosing the hydraulic piston and the at least two clamping springs within the housing, wherein the clamping springs urge the piston towards the bottom plate in the retracted position.
3 more elements
Dependencies are inferred from the claim text.