Geometrical instruments – Gauge – Movable contact probe – per se
Patent
1991-02-25
1992-09-15
Will, Thomas B.
Geometrical instruments
Gauge
Movable contact probe, per se
33561, 33558, G01B 520
Patent
active
051466910
ABSTRACT:
A touch trigger probe for a coordinate measuring machine or machine tool has a stylus (14), which is biased into a rest position. The stylus has two independent supports, provided within a housing (10). In the embodiment of FIG. 1, the first support comprises a skirt (18) of a stylus holder (12), which is axially constrained on a surface (20) of the housing (10). The second support comprises a kinematic arrangement of cylinders (34) and balls (36), together with a planar spring (30), which together provide lateral constraint. The first support is biased by a much lighter force than the second support, so that its friction is very low. This reduces the lobing and hysteresis of the stylus movement, and thereby increases the accuracy of the probe.
REFERENCES:
patent: 4136458 (1979-01-01), Bell et al.
patent: 4153998 (1979-05-01), McMurtry
patent: 4288925 (1981-09-01), McMurtry
patent: 4451987 (1984-06-01), Cusack
patent: 4477976 (1984-10-01), Suzuki
patent: 4577416 (1986-03-01), Franz
patent: 4661037 (1987-04-01), Sugino et al.
patent: 4763421 (1988-08-01), Feichtinger
patent: 4916825 (1990-04-01), Breyer
Renishaw plc
Will Thomas B.
LandOfFree
Touch probe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Touch probe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Touch probe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-729237