Method and apparatus for machining valve seats and valve stem gu

Cutting by use of rotating axially moving tool – Processes – Bit detachable

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

291567A, 408 36, 408 42, 408 79, 408 835, B23B 4112

Patent

active

048367192

ABSTRACT:
Valve seats are machined at the end of an axially deep, narrow cavity of a workpiece having an axially clampable surface within the cavity adjacent one or more valve seats. The method comprehends: (a) supporting a rotary driven spindle assembly of sufficient length to extend through the axial extent of the cavity and reach the valve seat, the spindle carrying a cutting tool at its extremity, the support being in a nonrotatable housing effective to fit closely to the interior of the cavity (within a tolerance of 0.01 inches) and effective to move along the axis of the cavity to bring the cutting tool into machining contact with the valve seats; (b) securing a radially rigid but axially resilient diaphragm to the end of the housing, the diaphragm extending transversely across the interior of the cavity; (c) after inserting the housing and spindle into the the cavity so that the cutting tool is proximate the valve seat but out of contact therewith, axially clamping a portion of the diaphragm remote from the spindle, against the axially clampable surface; and (d) moving the rotary driven spindle assembly axially toward the valve seat to conduct machining contact of the cutting tool therewith, the axially resilient diaphragm providing accurate supporting alignment for the tool under even high speed machining conditions.

REFERENCES:
patent: 1682314 (1928-08-01), Walton
patent: 1721310 (1929-07-01), Miller
patent: 2977727 (1961-04-01), Gray et al.
patent: 3521613 (1970-07-01), Celli
patent: 3728940 (1973-04-01), Peterson
patent: 4147462 (1979-04-01), Appleby et al.
patent: 4545706 (1985-10-01), Hiroyasu et al.
patent: 4692074 (1987-09-01), Smith et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for machining valve seats and valve stem gu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for machining valve seats and valve stem gu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for machining valve seats and valve stem gu will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-37659

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.