A rail grinding machine, which is displaceable manually on the rails of a track in a longitudinal direction with a machine frame supportable on a rail by way of guide rolls and a grinding apparatus mounted on the machine frame in such a way as to be pivotable about a pivoting axis running in the longitudinal direction has a grinding drive motor with a drive shaft for a grinding tool to be arranged below the drive motor, the grinding tool being drivable for rotation. A blower is arranged above the grinding tool which moves air downwardly past the drive motor and the grinding tool.

The cutter holder capable of polishing a workpiece has a body, a mandrel, a middle element and a brush assembly. The mandrel extends into the body. The middle element is mounted to the body with a part of the mandrel extending out of the middle element. The brush assembly is mounted with the part of the mandrel that extends out of the middle element.

An automated hand tool sharpening and cleaning system for sharpening the two opposed cutting edges of domestic, industrial, sport, or hobby hand tool like a knife blade is provided by the invention. The apparatus comprises a six-axis robotic arm, a pneumatic gripper, a vision sensor camera for profiling the blade edges, a robotic controller, and sequentially-arranged grinding, coarse sharpening, fine sharpening, and buffing rotating wheel assemblies used to grind, sharpen, and buff or polish the cutting edges of the knife blade. The blade cutting edges are profiled by the camera image that is processed by associated software to define the blade by multiple points defined along its edge, followed by a set of algorithms that are used to clean up any discrepancies in the profile data. The resulting corrected profile data is then translated into a set of machine control commands fed to the robotic arm and pneumatic gripper via the robot controller for manipulating the knife blade edges via the robotic arm with respect to each of the grinding, coarse sharpening, fine sharpening, and buffing/polishing wheels and an associated wash station for remove bits of metal and other residue resulting from the sharpened knife blade.

A device for grinding hard metal-tipped teeth of saw bands having a feed device for feeding a temporary workpiece in a timed manner where the temporary workpiece is formed from a plurality of saw bands that are parallel to one another, also having a clamping device that clamps the plurality of saw bands against one another, further having a grinding unit for simultaneously grinding a plurality of teeth, where the grinding unit has a grinding wheel having a plurality of grinding profiles, and a corresponding method.

Systems and methods for conditioning blades are provided. A method may include, for example, obtaining a cutting device, measuring various characteristics of the cutting edge of the cutting device, creating a current edge profile based on the characteristics, creating a modified edge profile, and/or conditioning the blade. Conditioning may include grinding, buffing and/or polishing. One or more of the conditioning steps may be based on the modified edge profile.

The present invention provides an end face polishing device capable of improving a polishing accuracy by polishing an end face of an optical fiber ferrule with adjusted polishing pressure. An end face polishing device 1 for optical fiber ferrule for polishing an end face of an optical fiber ferrule by applying a polishing pressure between a polishing plate 5 driven by a polishing drive shaft and an optical fiber ferrule held by a holding portion 9. The end face polishing device for optical fiber ferrule has: a bearing portion for allowing the polishing plate 5 to rotate relatively around the polishing drive shaft and to move relatively to the polishing drive shaft in an axial direction; a polishing plate guide supporting portion 31 for movably supporting the polishing plate 5 on a base portion 3 to apply the polishing pressure to the holding portion 9 by allowing the polishing plate 5 to move in the axial direction; a pressing drive source 15 for adjustably outputting a driving force to apply the polishing pressure; and a pressing force transmission mechanism 21 for transmitting the driving force output from the pressing drive source 15 as a pressing force in the axial movement direction of the polishing plate 5.

The cutter holder capable of polishing a workpiece has a body, a mandrel, a middle element and a brush assembly. The mandrel extends into the body. The middle element is mounted to the body with a part of the mandrel extending out of the middle element. The brush assembly is mounted with the part of the mandrel that extends out of the middle element.

Described is a method for grinding workpieces, which comprise at least one cylindrical and profiled portion each, on one and the same grinding machine. The workpiece is ground initially in a first grinding operation in a first clamping in the grinding machine, said first grinding operation being followed by a second grinding operation once the first clamping has been released and then, before the start of the second grinding operation, a second clamping has been generated.

A grinding machine, manually displaceable on a track, for grinding a rail of the track, includes a support frame which is guided on the rails via two rail guides and on which is disposed a drive motor coupled to a vertically adjustable grinding member. The rail guides each include a quick-change device in which one of at least two interchangeable rail guiding systems is fastened.

The present invention generally relates to assembly equipment of valve body, especially to riveting and grinding assembly for nozzle of screw shaft valve. The invention may include a rack, a power control box, a turntable and a turntable divider. A carrier assembly which engages with the screw shaft valve body is installed on the edge of the turntable with uniform distribution. On the center part of the turntable, a support shaft which is installed on and fixed with the rack is vertically interposed and on the top of the support shaft, an upper supporting disc is installed. A valve pipe feeding device, a valve pipe preloading device, a valve pipe riveting device and a valve pipe grinding device which engage with the carrier assembly are installed on the said rack on the rotational direction of turntable. As the threaded pipe is put into the carrier assembly by valve pipe feeding device, the carrier assembly rotates counterclockwise along the turntable and rotates to the valve pipe feeding device to the press threaded pipe into the valve seat. Thereafter the carrier assembly rotates the valve pipe riveting device and rivets threaded pipe with a valve flange in order to finish assembling process. Finally, the carrier assembly rotates the valve pipe grinding device to grind nozzle of valve to finish grinding and riveting process of threaded pipe with high positioning accuracy of assembly and marvelous hermetic sealing.