Work-clamping unit for use in machine tools
Workpiece support tooling
Self-adjusting automatic locking piston for RAM blowout preventers
Apparatus for holding tools Patent #: 5409322
ApplicationNo. 474361 filed on 06/07/1995
US Classes:269/317, Resiliently urged abutment269/310, Support resiliently urged upwardly269/329, MISCELLANEOUS403/321MANUALLY RELEASEABLE LATCH TYPE
ExaminersPrimary: Eley, Timothy V.
Assistant: Wilson, Lee D.
Attorney, Agent or Firm
International ClassB23Q 003/00
AbstractA work support incorporating an improved bearing locking mechanism comprises a body having a first and second end and a body bore defined by a body inner wall; a pin defining a pin ramp and slidably positioned within the body bore to receive a work piece load; a plurality of roller bearings circumferentially spaced about the body bore; a nose cap closing the first end, and a cage assembly to engage roller bearings, close the second end and form a barrier to receive fluid back pressure. Introduction of fluid back pressure and work piece load rotates the roller bearings toward the pin ramp and urges the pin in an opposing direction, locking the roller bearings, pin ramp and body inner wall. The work piece load and fluid back pressure are both introduced and then both removed to respectively cause locking and unlocking to occur. A method of using a work support comprises the steps of introducing a work piece load and fluid back pressure, and continuing the locking relationship until both work piece load and fluid back pressure are removed.
Field of SearchWITH FLUID MEANS
HOLDER INSERTED WITHIN WORK APERTURE
Resiliently urged abutment
Vertically compressible abutment
Work camming or wedging action type
Support resiliently urged upwardly
SUPPORTING STRUCTURE HAVING WORK HOLDER RECEIVING APERTURES OR PROJECTIONS
With work-stop abutment
Multiple direction restrainer
Support mounting means
WITH RELEASABLE STOP OR LATCH MEANS TO PREVENT MOVEMENT OF WORKING MEMBER
MANUALLY RELEASEABLE LATCH TYPE
Radially sliding catch