Abstract: A steady rest has working and right-hand cover plates and a central plate sandwiched there between. The working cover plate has upper and lower guide tracks and track engagement springs that are received within cavities. The central plate is movably disposed between the working and right-hand cover plates. The central plate slidably engages upper and lower gripping arms that are movable relative to the working cover plate between a clamped position and a retracted position. Tapered rails and rail engagement springs are disposed in a rail recess of the working cover plate. The rails are movable relative to each other to finely and precisely adjust a position at which the workpiece is clamped and moved horizontally or vertically when the gripping arms are in the clamped position. The track and rail engagement springs share common mechanical properties for ready interchange, thereby alleviating inventory concerns.

Abstract: A steady rest for supporting a, particularly elongate, workpiece undergoing mechanical work and particularly machining, having: a steady rest main part that can be arranged in a device for machining a workpiece being machined, and at least one support arrangement which is disposed or designed on said steady rest main part and configured to support a workpiece being machined, and comprises at least one support element that supports a workpiece requiring support, wherein said at least one support arrangement is disposed or designed to be mounted on the steady rest main part such that it can move, relative to said steady rest main part, in at least one degree of freedom of movement which defines a path of movement.

Abstract: An apparatus for polishing a butt weld includes a machine frame; a polishing mechanism, including a rotating arm, a supporting column rotatably mounted on the rotating arm, and a polishing roll rotatably mounted on the supporting column in a circumferential direction of the polishing roll; an angle limiting assembly, movably mounted on the rotating arm, the angle limiting assembly limiting an angle at which an outer side end of the supporting column swings upward; a roll driving part, mounted on the rotating arm. The roll driving part is in transmission connection with the polishing roll and drives the polishing roll to rotate on the supporting column in the circumferential direction of the polishing roll. An arm driving part is mounted on a fixed frame, the rotating arm being mounted on the arm driving part, and the arm driving part drives the rotating arm to rotate in a circumferential direction.

Abstract: A steady rest has working and right-hand cover plates and a central plate sandwiched therebetween. The working cover plate has upper and lower guide tracks that are received within cavities. The central plate is movably disposed between the working and right-hand cover plates. The central plate slidably engages upper and lower gripping arms that are movable relative to the working cover plate between a clamped position and a retracted position. Tapered rails are disposed in a rail recess of the working cover plate. The rails are movable relative to each other to finely and precisely adjust a position at which the workpiece is clamped and moved horizontally or vertically when the gripping arms are in the clamped position.

Abstract: A ground leveling grinder comprises a main motor connecting disk (1), wherein a driving shaft (4) is vertically provided in the middle section of the circular channel (41) of the main motor connecting disk (1), a hollow shaft sleeve (9) which is rotatable with respect to the driving shaft is sleeved outside the driving shaft (4), a worm gear (3) is installed at the periphery of the middle section of the hollow shaft sleeve (9), a worm (2) is installed in the worm box (10), the worm gear (3) is meshed with the worm (2), a driving gear (13) is installed at the lower end of the driving shaft (4), the driving gear (13) is meshed with an intermediate gear (14), the intermediate gear (14) is meshed with a driven gear (15), and a grinding disk (12) is installed on the output shaft of the driven gear (15).

Abstract: A robotic tire mounter for mounting a tire to a wheel is disclosed. The robotic tire mounted comprises a robotic arm and a gripping unit. The gripping unit further comprises a plurality of gripping fingers that are selectively moveable between a releasing position and a gripping position. When in the gripping fingers are in the releasing position, the gripping fingers are positioned adjacent one another adjacent a center of the gripping unit. A method of mounting a tire to a wheel using a robotic tire mounter is also disclosed.

Abstract: A multi-tool positioning and manufacturing system moves a workpiece among many tools, such as grinding wheels, each of which performs a manufacturing operation on the workpiece. The system moves the workpiece automatically, quickly, repeatably, and precisely among the tools, without any manual intervention. It can perform the same manufacturing operations as many separate tools, such as grinding the inner diameter, outer diameter, and rib of a tapered roller bearing cone. Because a machinist does not have to move the workpiece between machines for different operations, the total manufacturing process can be faster and higher yield than with separate tools. The system can also move a single dresser among the tools for dressing and truing, further increasing manufacturing efficiency by eliminating the need for separate dressers for separate tools.

Abstract: A grinding method includes a first grinding step of executing grinding feed of a rough grinding unit and grinding the workpiece to a predetermined thickness while supplying grinding water with a first grinding water amount that allows suppression of wear of grinding abrasive stones and a second grinding step of, after executing the first grinding step, promoting dressing of the grinding abrasive stones to prepare for processing of the next workpiece through executing grinding feed of the rough grinding unit and grinding the workpiece to the finished thickness while supplying the grinding water with a second grinding water amount that increases wear of the grinding abrasive stones and promotes self-sharpening through reduction relative to the first grinding water amount.

Abstract: A high-pressure water jet sheet strip sand-blasting descaling cleaning device, a cleaning line and a system are disclosed. The cleaning device includes a cleaning box (7), a washing box (18) and descaling nozzles (6), the descaling nozzles (6) face to the same width direction of a sheet strip (5) and are arranged in a gradient along a conveying direction of the cleaning box (7) to jet covering the sheet strip (5). The system includes the cleaning device, an abrasive collecting box, a high-pressure water supply system, an abrasive supply-recovery-separation system and a sewage recycling treatment system. The nozzles are slantwise arranged in a gradient along the conveying direction, and the neighboring nozzles do not interfere with each other, and are used for cleaning successively, so that a cleaning process is stable and controllable.

Abstract: Provided is an automatic polishing system that is capable of adjusting a degree of polishing in accordance with a condition of a surface of a body of a mobile object. The automatic polishing system includes: a multi-articulated robot; a polishing machine including a spindle that spins around an axis and a polishing tool that is fixed at an end of the spindle; a sensor which is provided between the multi-articulated robot and the polishing machine and which detects normal reaction (z-axis component Fz) that acts from a polish target surface to the polishing machine and moment (z-axis component Mz) that acts around the axis of the spindle; and a control unit which controls the multi-articulated robot based on the normal reaction (z-axis component Fz) and the moment (z-axis component Mz).

Abstract: A method is provided and includes making a polishing table and a dummy disk rotate; bringing the dummy disk into contact with a table surface of the polishing table while a liquid is supplied to the table surface; measuring heights of the table surface at a plurality of measurement points while the dummy disk is moved on the table surface; and creating a table profile showing tilt of the table surface from measurement values of the heights of the table surface.

Abstract: In one embodiment, the invention can be a brush unit detachable from a main body unit of an electric toothbrush. The brush unit includes: a light transmitting part included on a front surface of the brush unit, a plurality of tooth cleaning elements extending from the front surface of the brush unit in a pressing direction, wherein the light transmitting part directs more light in a first direction, which intersects the pressing direction, than in the pressing direction; and a light receiving part included on the front surface for receiving light; wherein the light transmitting part and the light receiving part are arranged on opposing sides of the plurality of tooth cleaning elements; and wherein the first direction lies within a plane including both the light transmitting part and the light receiving part.

Abstract: The present disclosure relates to an endpoint detection window of a polishing pad for use in a polishing process. The polishing pad may prevent an error in detection of the endpoint of the polishing process by preventing a difference in endpoint detection performance from occurring due to a difference in the wavelength of a laser between polishing apparatuses. The present disclosure may also provide a method of fabricating a semiconductor device using the polishing pad.

Abstract: An apparatus for supporting a workpiece has a frame and a supporting field consisting of end faces of a plurality of supporting pins which are guided parallel to one another in their main extension directions in the frame and which can each be pushed in against a restoring force with respect to the frame. Further, the apparatus has a detection device including a light barrier in order to detect relative positions of at least some of the supporting pins with respect to the frame. A light source and a light sensor of the light barrier are facing one another across the main extension directions of the supporting pins. The light source is divided into a plurality of sub-sources along one side of the supporting field, and the light sensor is divided into a plurality of sub-sensors along another side situated opposite the aforementioned side of the supporting field.

Abstract: Disclosed herein is a fixture for a workpiece, a system and a method for performing a machining operation using the fixture. The fixture may include a frame, a plurality of holders, an actuator and a bracket. Each holder may be configured to receive and secure a workpiece. Each holder may be rotationally coupled to the frame. The actuator may be operatively coupled to the plurality of holders to drive rotation of the holders with respect to the frame. The bracket may allow for mounting the frame to a manipulator configured to move the fixture. The method may include the steps of loading a workpiece to the holder of the fixture, moving and/or rotating the workpiece by the actuator to perform one or more ancillary operations on the workpiece, and moving/and or rotating the workpiece by the actuator to grind the workpiece against a grinding surface.

Abstract: A grit blasting arrangement for cleaning chemical reactor tubes includes means for ensuring the grit blast nozzle is coaxial with the longitudinal axis of the tube to be cleaned. The grit blasting device for cleaning tubes spaced apart by upper and lower tubesheets. The grit blasting device includes a grit blast nozzle mounted on a positioning frame and projecting outwardly with an outlet directed into a tube opening during a cleaning operation. The device includes a plurality of stop pins mounted on the positioning frame designed to abut a tubesheet and to define an imaginary plane coplanar with the tubesheet. The plurality of stop pins when abutting the tubesheet prevent the outlet of the nozzle from extending into the tube causing a venturi effect.

Abstract: An adjustable tool holder is configured for interchangeable use with a variety of tools provided with different connection elements. The connection elements include at least a first connection element configured for a first manner of connection with the tool holder and a second connection element configured for a second manner of connection with the tool holder. The tool holder includes a distally extending tool support operable to detachably support each of the tools. The tool support includes a first tool connector configured to releasably connect with the first connection element in the first manner of connection. The tool support includes a second tool connector configured to releasably connect with the second connection element in the second manner of connection.

Abstract: A clamping device for holding a workpiece, in particular a cutting tool, during machining in a grinding machine, wherein peripheral grinding of the workpiece is performed by means of a particularly approximately cup-shaped grinding wheel, wherein the clamping device comprises a support unit provided to be mounted on the grinding machine, a clamping unit comprising a clamping anvil supported in a clamping anvil holding element and translationally drivable to apply a clamping force parallel to a clamping axis, and a drive unit comprising a drive anvil supported in a drive axis and rotationally drivable for rotary orientating the workpiece by means of the drive axis. The clamping unit and the drive unit are provided as individual components, which are releasably or slidably attached to the support unit to form a workpiece spindle headstock of the grinding machine.

Abstract: A dual-sleeve, locking adjustment arrangement includes a position-sensitive component comprising an aperture, an outer eccentric sleeve disposed in the aperture, and an inner eccentric sleeve disposed in the outer sleeve. Rotation of the outer sleeve with respect to the position-sensitive component and the inner sleeve drives rotation of the position-sensitive component to adjust an angular position of the component.

Abstract: A dust hood (100), including a flange (90) for fastening the dust hood (100) to a transmission extension housing (210) of an angle grinder (200), and including a hood body (10) for covering a circular cutting wheel (220) on both sides, at least in sections, and including a suction connecting piece (40) for connecting a suction hose (400), via which removed substrate material (UG) may be extracted from the hood body (10), the dust hood (100) including a sensor unit (20), with the aid of which it is possible to detect whether the suction hose (20) is connected to the suction connecting piece (40) and/or whether a flap (45) of the suction connecting piece (40) is open.