US 6,159,074 AGranted

Caliper assembly for a grinding machine

OwnerSamuel C. Kube, Albert A. Plekkerinventors

Life of this patent

Estimating the term…

Loading patent…

Abstract

Disclosed is a caliper assembly for measuring a diameter of a roll received on a roll support of a grinding machine which includes a frame positionable adjacent the roll support and a linear guide connected to the frame. A pair of measuring arms is connected in spaced relation to the linear guide. The linear guide is configured to enable each measuring arm to move relative to the frame and parallel to the longitudinal axis of the linear guide. A linear motor is connected between the frame and the pair of measuring arms. The linear motor is configured to supply to the pair of measuring arms a motive force which causes the pair of measuring arms to move together or apart. If one of the measuring arms contacts a workpiece with a force in excess of a predetermined force, the linear motor terminates supplying motive force thereto.

Claims19

Dependent claims

A grinding machine for grinding a roll, the grinding machine comprising:

a roll support configured to receive a roll so that the roll is rotatable around its longitudinal axis;
a grinding wheel having a grinding surface around the circumference thereof, with the grinding surface positionable in contact with the roll received on the roll support, with at least one of the grinding wheel and the roll support moveable relative to the other of the grinding wheel and the roll support so that the grinding surface is moveable between opposite ends of the roll;
a caliper configured to measure a diameter of the roll, with at least one of the caliper and the roll support moveable relative to the other of the caliper and the roll support so that the caliper can measure the diameter of the roll between the opposite ends thereof, wherein the caliper comprises:
a frame;
a linear guide connected to the frame;
a pair of measuring arms connected to the linear guide in spaced relation, with the linear guide configured to enable each measuring arm to simultaneously move relative to the linear guide and parallel to the longitudinal axis of the linear guide;
and
a linear motor connected between the frame and the pair of measuring arms, with the linear motor configured to supply to the pair of measuring arms a motive force which causes the pair of measuring arms to simultaneously move relative to the linear guide and parallel to the longitudinal axis of the linear guide, with the linear motor configured to terminate the supply of motive force to at least one of the measuring arms in response to the at least one measuring arm contacting the roll with a force in excess of a predetermined force.

5 more elements

A caliper assembly for measuring a diameter of a roll received on a roll support of a grinding machine, the caliper assembly comprising:

a frame positioned adjacent the roll support;
a linear guide connected to the frame, with the longitudinal axis of the linear guide positioned perpendicular and in spaced relation to the longitudinal axis of the roll received on the roll support;
a linear motor connected to the frame, with the longitudinal axis of the linear motor positioned parallel to the longitudinal axis of the linear guide;
and
a first measuring arm connected between the linear guide and the linear motor, with the longitudinal axis of the first measuring arm extending orthogonal to the longitudinal axis of the roll and the longitudinal axis of the linear guide, wherein:
the linear guide enables the first measuring arm to simultaneously move relative to the linear guide and parallel to the longitudinal axis of the linear guide;
the linear motor supplies to the first measuring arm a motive force which causes the first measuring arm to simultaneously move relative to the linear guide and parallel to the longitudinal axis of the linear guide and into contact with the roll received on the roll support;
and
in response to the first measuring arm contacting the roll and the linear motor supplying to the first measuring arm a motive force in excess of a predetermined force, the linear motor terminates supplying the motive force thereto.

6 more elements

Dependencies are inferred from the claim text.