A roundness measuring machine includes: a base; a table rotatable relative to the base; a probe configured to scan a surface of a workpiece mounted on the table; a motor configured to rotate the table; and a control device configured to control a rotation of the motor. The control device includes: a starting current detector configured to detect a starting current of the motor; and an acceleration/deceleration time setting unit configured to detect at least one of acceleration time and deceleration time for the motor in accordance with the starting current. The roundness measuring machine can suitably set the acceleration time and the deceleration time for the motor corresponding to the inertia moment of the workpiece mounted on the table.

A method for controlling the deformation of a wheel includes obtaining, for multiple predefined angular positions on the wheel, a parameter characterizing an angular velocity of the wheel when the wheel is in contact with the running surface at each predefined angular position while the wheel is rolling on a running surface, and calculating a radius value of the wheel for each predefined angular position using the parameter characterizing the angular velocity obtained for that angular position.

An automation cell for performing a plurality of secondary operations on manufactured parts is for use with a manufacturing machine operable to perform primary manufacturing of the parts. The automation cell includes a cell housing, a robot with a gripper mechanism capable of loading and unloading a part between the manufacturing machine and the automation cell, a gauging station being a secondary operation device and operable to gauge a parameter of a manufactured part, a marking device for marking the manufactured part, and a vision system for verifying the marking of the manufactured part.

The present invention discloses a device for evaluating the technical condition of the tread of moving railway vehicles, especially for automated inspection of the loss of roundness of each wheel of circulating railway vehicles, in which a point of measurement is used which generates a signal proportional to rail deformation when a wheel arch passes over said point. Then the comparator system compares the measured signal with a wheel pattern without any roundness defects, which is then transmitted over a data network that associates the wheel identification information, with the wheel defect data generated by the comparator system each time the wheel passes over said measurement area.

A bidirectional displacement detector according to the present invention includes: a displacement detector which includes a first detection element and a second detection element; a base at which the first detection element is provided; an arm which is coupled to the base so as to be rotatable around an arm rotation axis extending in a horizontal direction, and at which the second detection element is provided; and a probe which is coupled to the base so as to be rotatable around a probe rotation axis perpendicular to the arm rotation axis. The probe has a contact part provided at a position away from the probe rotation axis, and a pair of abutment parts which is disposed along a direction of the arm rotation axis and on both sides with the probe rotation axis interposed therebetween and comes into contact with the arm so as to be able to be separated from the arm. Each of the pair of abutment parts is in contact with the arm from the lower side thereof and is biased upward.

An automation cell incorporating elements for performing secondary operations on a machined part is adapted to be disposed adjacent to a machining center for performing the primary operations on the part. The cell incorporates a robotic arm capable of being moved into position with respect to the machining center so as to load machined parts into the machining center and unload primarily machined parts for the performance of secondary operations in the cell. In a preferred embodiment the automation cell performs roll check operations on the primarily machined gear by bringing it into meshed engagement with a master gear and rotating the meshed gears and employing a sensor to monitor the roll-out of the machined gear.

An automation cell incorporating elements for performing secondary operations on a machined part is adapted to be disposed adjacent to a machining center for performing the primary operations on the part. The cell incorporates a robotic arm capable of being moved into position with respect to the machining center so as to load machined parts into the machining center and unload primarily machined parts for the performance of secondary operations in the cell. In a preferred embodiment the automation cell performs roll check operations on the primarily machined gear by bringing it into meshed engagement with a master gear and rotating the meshed gears and employing a sensor to monitor the roll-out of the machined gear.

A bidirectional displacement detector according to the present invention includes: a displacement detector which includes a first detection element and a second detection element; a base at which the first detection element is provided; an arm which is coupled to the base so as to be rotatable around an arm rotation axis extending in a horizontal direction, and at which the second detection element is provided; and a probe which is coupled to the base so as to be rotatable around a probe rotation axis perpendicular to the arm rotation axis. The probe has a contact part provided at a position away from the probe rotation axis, and a pair of abutment parts which is disposed along a direction of the arm rotation axis and on both sides with the probe rotation axis interposed therebetween and comes into contact with the arm so as to be able to be separated from the arm. Each of the pair of abutment parts is in contact with the arm from the lower side thereof and is biased upward.