A method for processing a ceramic honeycomb structure, the method comprising subjecting an outer peripheral surface of the ceramic honeycomb structure to centerless grinding in an in-feed mode by bringing a rotationally driving grinding wheel into contact with the outer peripheral surface of the ceramic honeycomb structure rotationally supported by an adjusting wheel, a blade, and a press roller.

The present invention relates to an actively dampened centerless grinding process for a centerless grinding machine having wheels, between which there is arranged a part to be ground, and heads carrying the wheels, which process has moving the wheels closer to one another by applying pressure on the part for the grinding thereof, such that vibrations are generated in the grinding machine due to grinding, measuring the vibrations due to grinding, and introducing, depending on the measurement, an active damping force (F.sub.act) parallel to the force flow of the grinding machine and by means of using an inertial actuator acting directly on one of the heads, such that the vibrations due to grinding are attenuated.

The present invention relates to an actively dampened centerless grinding process for a centerless grinding machine having wheels, between which there is arranged a part to be ground, and heads carrying the wheels, which process has moving the wheels closer to one another by applying pressure on the part for the grinding thereof, such that vibrations are generated in the grinding machine due to grinding, measuring the vibrations due to grinding, and introducing, depending on the measurement, an active damping force (F.sub.act) parallel to the force flow of the grinding machine and by means of using an inertial actuator acting directly on one of the heads, such that the vibrations due to grinding are attenuated.

A method for processing a ceramic honeycomb structure, the method comprising subjecting an outer peripheral surface of the ceramic honeycomb structure to centerless grinding in an in-feed mode by bringing a rotationally driving grinding wheel into contact with the outer peripheral surface of the ceramic honeycomb structure rotationally supported by an adjusting wheel, a blade, and a press roller.

A method for processing a ceramic honeycomb structure, the method comprising subjecting an outer peripheral surface of the ceramic honeycomb structure to centerless grinding in an in-feed mode by bringing a rotationally driving grinding wheel into contact with the outer peripheral surface of the ceramic honeycomb structure rotationally supported by an adjusting wheel, a blade, and a press roller.

A device for producing a curved lateral surface on a rolling element for a rolling bearing includes a grinding apparatus for grinding the curved lateral surface and a retaining apparatus having a control wheel with a convexly profiled peripheral feeding surface for retaining the rolling element during the grinding. The retaining apparatus may include a plurality of control wheels. The control wheel or the convexly profiled peripheral feeding surface may be formed from a ceramic, a resin-bonded synthetic, or a metallic material. The device may include a dressing apparatus for profiling the convexly profiled peripheral feeding surface of the control wheel.

This document discloses a system and method for polishing a metal surface, using a grinding machine and a burnishing machine. The grinding machine comprises an arm coupled with a grinding wheel for grinding the internal surface of a workpiece, an arm rotation drive block configured to drive rotation of the arm around its longitudinal axis, an arm movement drive block configured to move the arm longitudinally and vertically, and rollers for rotating the workpiece around its cylindrical axis via friction with an external surface of the workpiece. The arm comprises a fixed main shaft, a universal joint shaft and a head section coupled with the grinding wheel, wherein the head section is configured to oscillate vertically, allowing the grinding wheel to follow up-and-down fluctuations of the workpiece. The burnishing machine is configured to tumble the workpiece including a tumbling detergent and tumbling beads therein.

When a work W rotates counterclockwise about an axis O.sub.w and is subjected to infeed grinding by a regulating wheel (1) which rotates clockwise about an axis O.sub.1 and a grinding wheel (2) which rotates clockwise about an axis O.sub.2, a load F acting on a blade (4), a load acting on the work W supported by the blade (4), and a load operating position y in the blade (4) at any given time are measured by a controller (20) based on the outputs of a first stress sensor S.sub.1 and a second stress sensor S.sub.2 and according to the correlation information stored in a storage device. If the component of a specified frequency extracted by performing frequency analysis of the time series of the load exceeds a threshold value, then designation processing is carried out to reduce the component of the designated frequency to the threshold value or less.

When a work W rotates counterclockwise about an axis O.sub.w and is subjected to infeed grinding by a regulating wheel (1) which rotates clockwise about an axis O.sub.1 and a grinding wheel (2) which rotates clockwise about an axis O.sub.2, a load F acting on a blade (4), a load acting on the work W supported by the blade (4), and a load operating position y in the blade (4) at any given time are measured by a controller (20) based on the outputs of a first stress sensor S.sub.1 and a second stress sensor S.sub.2 and according to the correlation information stored in a storage device. If the component of a specified frequency extracted by performing frequency analysis of the time series of the load exceeds a threshold value, then designation processing is carried out to reduce the component of the designated frequency to the threshold value or less.

A method and device for simultaneous centerless cylindrical grinding of multiple workpieces (11, 12, 13, 14), at least sections of which are rotationally symmetrical, the workpieces are arranged on a support apparatus (200) one behind the other between at least one grinding wheel (110) and at least one regulating wheel (120), and wherein the axis of rotation of the regulating wheel is inclined with respect to a horizontal plane extending parallel to the workpiece axes of rotation and the grinding wheel axis of rotation by an inclination angle (). During grinding the workpieces are arranged with a height offset relative to each other corresponding to at least a quarter of the inclination angle () of the axis of rotation of the regulating wheel with respect to the parallel plane to render the respective bearing angles () of the workpieces on the inclined regulating wheel consistent.