A sharpening apparatus includes a base having a top surface with a channel or mounting rail. A clamping assembly is configured to be secured to base via the rail or channel. When installed, the clamping assembly includes a pair of jaws extending upward from the top of the base in opposed alignment with distal ends of each jaw adjustably spaced to grip a cutting implement. A guide rod has an end configured to be pivotably mounted to the base via the rail or channel and so that the rod's position along the base is adjustable by sliding movement along the rail or channel.

A fixture assembly may include a housing, a clamp assembly, and a drive mechanism. The clamp assembly may be movably mounted to the housing and may include a first clamp member and a second clamp member. The first and second clamp members may be linearly movable relative to the housing toward and away from each other. The drive mechanism may be coupled to the clamp assembly and the housing and may drive the clamp assembly relative to the housing such that the first clamp member moves linearly toward the second clamp member at a first speed in a first direction and the second clamp member moves linearly toward the first clamp member at a second speed in a second direction that is opposite the first direction. The first speed may be different than the second speed.

A sharpening device for sharpening and grinding mower blades. The sharpening device includes a roller table and a plurality of mower blade mounting platforms that slide back and forth atop a base. The mower blade mounting platforms include an electromagnet that secures a mower blade to a support surface and guides for directing the position of the secured mower blade. The sharpening device further includes a plurality of sharpening members, such as grindstones, that engage with the mower blades secured to the mower blade mounting platforms. Each mower blade mounting platform includes adjustment mechanisms that allow a user to alter the lateral position of the blade and the sharpening angle of the blade. A first and second motor causes the mower blade mounting platforms to reciprocate and the sharpening members to rotate.

A knife sharpener for the manual sharpening of knives that includes a knife clamp, a honing bar extending in a first direction, an upright support, a base, and a sleeve that is configured to receive a knife having a blade. The knife clamp is configured such that the sleeve is selectively mated within the knife clamp to fixedly secure the knife blade therein along a second direction when the knife clamp is closed.

A multi-procedure integrated automatic production line for hard alloy blades under robot control is provided. The production line includes a rail-guided robot. A cutter passivation device and a blade cleaning and drying device are arranged on one side of the rail-guided robot. A blade-coating transfer table, a blade coating device, a blade boxing transfer table, a blade-tooling dismounting device and a blade boxing device are sequentially arranged on another side of the rail-guided robot. The blade-tooling dismounting device is arranged on one side of the blade boxing transfer table. The production line further includes squirrel-cage toolings for carrying the blades. The squirrel-cage tooling that are loaded with the blades can run among the cutter passivation device, the blade cleaning and drying device, the blade-coating transfer table and the blade boxing transfer table. The blades after being treated through the blade-tooling dismounting device are sent to the blade boxing device.

A grinding jig for holding an edged tool in a grinding machine. The grinding jig comprises a base having a plane support surface for supporting a section of the face of an edged tool. The grinding jig further comprises a clamping means. The clamping means is arranged to clamp a section of the face of an edged tool against the flat support surface. A first and a second support leg extend from opposite ends of the base. Each support leg comprises an opening adapted to slidably and rotationally receive a grinding jig support bar of a grinding machine. In embodiments described herein one support leg is pivotally attached to the base around an axis parallel with the extension of the plane support surface. The grinding jig further comprises a first adjustable stop means for adjustably limiting the pivotal movement of the support leg in a first direction. The grinding jig further comprises a second adjustable stop means for adjustably limiting the pivotal movement of the support leg in a second direction.

Method and apparatus for sharpening a cutting tool. In some embodiments, a sharpener has a guide assembly adjacent a moveable abrasive medium. The medium is advanced at a first speed relative to the guide assembly during a coarse sharpening operation in which a user presents the cutting tool against the medium to shape a side of the cutting tool and generate distended material from the cutting edge (e.g., burrs). The medium is subsequently slowed to a lower, second speed for a fine sharpening operation in which the user presents the cutting tool against the medium to remove the distended material and provide a sharpened cutting edge.

A knife sharpener for the manual sharpening of knives that includes a knife clamp member having first and second clamping members, a guide member that defines upper and lower guide members, and a base member. Each upper and lower guide member includes a plurality of apertures sized and shaped for receiving a guide rod that includes a sharpening stone. The knife clamp member further includes embodiments assuring the knife blade is held securely and positioned between the first and second clamping members in the same position in which the knife blade was installed the last time it was sharpened.

Apparatus for sharpening a cutting tool. In some embodiments, a tool sharpener includes an abrasive medium having an abrasive surface. A stationary tool support guide provides a guide surface that supports a side of the tool during presentation of a cutting edge of the tool against the abrasive surface. A rotatable edge guide has a roller member with a curvilinearly extending outer surface. The roller member is rotatable about an edge guide roller axis and is moveable between a deployed position and a retracted position. In the deployed position, the roller member is positioned to engage, via rolling contact, the cutting edge during the presentation of the cutting edge against the abrasive surface. In the retracted position, the roller member is positioned to provide a non-contacting clearing relation with the cutting edge during said presentation.

A rock sanding device includes a base, a bottom sanding plate, an adjustable connecting rod, an elastic loader, a connector, a side sanding brush, a top sanding plate, an inner rod, a prong and a drill rod. The top of the drill rod is fixedly connected with the rotating shaft of the external water drilling rig and the external water drilling rig has a water inlet joint to introduce water into the drill rod. The inner rod and drill rod are connected and fixed coaxially, and the bottom of the drill rod is symmetrically welded with four prongs. The rock specimen is placed in the center of the side sanding brush. The top sanding plate and the bottom sanding plate are provided in the top side and bottom side of the rock specimen, respectively.