Large displacement hydrostatic workpiece holder

Details Large displacement hydrostatic workpiece holder Large displacement hydrostatic workpiece holder

1998-05-28

2000-01-18

Bishop, Steven C.

Chucks or sockets

Expanding

Fluid-pressure actuator

279 208, 279 403, 279 411, 2435712, 2435761, 294 981, B23B 3130, B23B 3140

Patent

active

060151544

ABSTRACT:
A hydrostatic tool holder having a displaceable metal sleeve formed with a plurality of circumferentially spaced and longitudinally extending slots and a flexible, polymeric ring defining at least in part a fluid chamber to separate the fluid in the chamber from the sleeve to prevent the fluid from escaping through the slots in the sleeve. The slots in the metal sleeve enable a large displacement of the sleeve through the polymeric ring so that the hydrostatic tool holder may be used with workpieces having rough finishes, such as cast metal workplieces like cylinder liners for internal combustion engines, which as cast have relatively rough surfaces and relatively low dimensional accuracy.

REFERENCES:
patent: 4114909 (1978-09-01), Taitel et al.
patent: 4135677 (1979-01-01), Warczaak
patent: 4317577 (1982-03-01), Cameron
patent: 4953877 (1990-09-01), Slachta et al.
patent: 5429376 (1995-07-01), Mueller et al.

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