A clamp for use with a cutting machine, the clamp comprising: a clamp frame; a low profile clamp head operatively connected to the clamp frame, wherein the clamp head has a clamping surface for pressing on a work surface of a work piece to hold said work piece; and a fixing element, operatively connectable to the clamp frame, for providing a clamping force to the clamp head by fixing the clamp to a support base for the work piece. In embodiments, the clamp head may have a low profile clamp head, made of plastic to prevent damage to a cutting bit.

A positioning structure of clamp may include a fixed clamp and a guiding rod, and the fixed clamp has a clamping portion and a connecting portion respectively at an upper portion and a lower portion thereof, and a guiding hole penetrates through the connecting portion. The guiding rod coupled into the guiding hole comprises a plurality of first through holes thereon, a first engaging hole and a second engaging hole respectively penetrating through two lateral sides of the connecting portion are respectively communicated with the guiding hole. A plurality of lock holes are formed at the lateral side of the connecting portion same as the second engaging hole. A positioning unit, connected to the connecting portion through the first engaging hole, the second engaging hole, and the lock holes, comprises a clamping block, an engaging block, a positioning bolt, a positioning block, a clamping plate and a rotating member.

A ratchet woodworking clamp with a universal adaptive clamping block includes a fixed clamp arm and a movable clamp arm, the fixed clamp arm and the movable clamp arm being both provided with an arc-shaped notch, and the arc-shaped notch being matched and connected with a movable connecting member, wherein a middle portion of the arc-shaped notch is provided with a semi-spherical or spherical groove recessed inwardly, one side of the movable connecting member is a circular connecting end, which is in matched connection with the arc-shaped notch, and the circular connecting end is provided with a spherical or semi-spherical convex structure in an inward direction, which is matched and connected with the groove in the middle portion of the arc-shaped notch.

The present invention relates to a device and a method associated with the device. With respect to the device, it is a work holding and clamping device, which increases the usable span to almost twice its stored length. This device has an inner and outer assembly. The inner and outer assemblies are nested or telescopic. Each assembly is made of a square or rectangular tube that has a jaw affixed to one end. The inner assembly contains a locking mechanism to allow for length adjustment. When arranged so that the jaws are on the same side of the respective assemblies, the clamp is capable of a span that is almost equal to the length of the inner assembly. When arranged so that the jaws are on opposite sides of the respective assemblies, the clamp is capable of a span that is almost equal to the sum of the length of the inner assembly and outer assembly.

A clamping device that can be installed in a capping machine for substantially cylindrical caps, including prisms that are placed in contact with each other so as to create a cavity in which a cap can be housed and are free to translate with respect to each other away from or towards an axis of symmetry of the cavity, in order to clamp and/or compress the cap housed in said cavity, said clamping device wherein a first and a second prism form a first pair and a third and a fourth prism form a second pair in which at least the first and/or second pair includes guiding means configured to allow a linear type translation and to perform an at least one-directional, preferably bidirectional retention action of the prisms of each pair with respect to each other.

The present invention relates to a device and a method associated with the device. With respect to the device, it is a work holding and clamping device, which increases the usable span to almost twice its stored length. This device has an inner and outer assembly. The inner and outer assemblies are nested or telescopic. Each assembly is made of a square or rectangular tube that has a jaw affixed to one end. The inner assembly contains a locking mechanism to allow for length adjustment. When arranged so that the jaws are on the same side of the respective assemblies, the clamp is capable of a span that is almost equal to the length of the inner assembly. When arranged so that the jaws are on opposite sides of the respective assemblies, the clamp is capable of a span that is almost equal to the sum of the length of the inner assembly and outer assembly.

A quick-release clamp for a vehicular mount or rack having a rigid stationary first jaw with a clamping surface, and a rigid second jaw opposite with a clamping surface oriented to face the first jaw clamping surface. The second jaw is movable between an open and a closed position relative to the first jaw, where the closed position is capable of retaining one or more objects to be clamped transversely between said jaws. A lever, attached to a variable tensioning system operates to open and close the jaws when sufficient force is applied to overcome the tension of the tensioning system.

A woodworking clamp having a connector is provided. Two ends of the connector are connected with two clamping members to constitute the woodworking clamp. The connector includes a housing, a receiving tube, a U-shaped buckle, a spring, and a button. When the end of a bar of the clamping member is fully inserted in a notch of the U-shaped buckle, the spring provides a force to return the U-shaped buckle to its original position to complete the locking. When the button is pressed down, that is, a hook of the U-shaped buckle is pressed down, a positioning pin of the bar is released from the receiving tube and the U-shaped buckle so that the bar of the clamping member can be pulled out from the connector.

A straight edge bar clamp spreader comprises a straight edge bar, an inner channel portion, parallel channel portions, and two-way bosses or divots, a clamp, and a clamp-spreader. The inner channel portion is provided along an elongated central region of the bottom surface of the straight edge bar with a constant cross-section. The parallel channel portions are provided along two elongated parallel regions of the top surface of the straight edge bar. The two-way bosses or divots are provided across and on an inner surface of the inner channel portion of the bottom surface and an outer surface of the top surface and configured to define the predetermined stopping positions for two-way movements along the bottom surface or the top surface. The clamp is installed in the inner channel portion of the bottom surface. The clamp-spreader is installed in the pair of parallel channel portions of the top surface.

A clamping device includes: an operating member; a wedge having a first inclined surface; a clamping member having a second inclined surface movable relative to the first inclined surface, the first and second inclined surfaces being provided in a face-to-face arrangement; and a housing having a first guiding part, a second guiding part and a chamber. The operating member is mounted in the first guiding part, the clamping member is mounted in the second guiding part, and the wedge is disposed in the chamber; the operating member is operated to move towards the wedge, such that the operating member contacts and pushes the wedge to move, and further the first inclined surface contacts and moves along the second inclined surface; whereby a pushing force of the operating member in a first direction is converted into a clamping force of the clamping member in a second direction.