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 clamping unit (1) for clamping a workpiece, with an electric drive, and a gearbox unit having an arrangement of rolling elements (9). The gearbox unit is used to convert a rotary motion of an actuating element into a translational motion. By means of translational motions of the actuating element, clamping elements (5) can be moved into a clamping position in which a workpiece is clamped with clamping elements (5), and into a release position in which clamping elements (5) release the workpiece.

A clamping unit (1) for clamping a workpiece, with an electric drive, and a gearbox unit having an arrangement of rolling elements (9). The gearbox unit is used to convert a rotary motion of an actuating element into a translational motion. By means of translational motions of the actuating element, clamping elements (5) can be moved into a clamping position in which a workpiece is clamped with clamping elements (5), and into a release position in which clamping elements (5) release the workpiece.

A clamp mount and clamp assembly using a clamp mount are provided. The clamp mount is used to attach a clamp to a workbench or other support device so that a workpiece can be clamped to a work surface. The clamp mount may include a removable shoe. The clamp mount may include a plurality of attachment plates for attaching the clamp mount to different supports or different mounting features of the support device.

A clamp mount and clamp assembly using a clamp mount are provided. The clamp mount is used to attach a clamp to a workbench or other support device so that a workpiece can be clamped to a work surface. The clamp mount may include a removable shoe. The clamp mount may include a plurality of attachment plates for attaching the clamp mount to different supports or different mounting features of the support device.

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.

A clamp includes a closure mechanism and a band. The clamp can be a v-insert clamp. The band has a first metal layer and a second metal layer. The metal layers constitute a bi-metallic construction of the band. The metal layers can be composed of different stainless steel materials. The first metal layer possesses a first coefficient of thermal expansion, and the second metal layer possesses a second coefficient of thermal expansion. Values of the first coefficient of thermal expansion and of the second coefficient of thermal expansion differ relative to each other. The difference in value of the first and second coefficients of thermal expansion, and the position of the first and second metal layers relative to each other, can be effected in order to impart desired behavior of the band when experiencing a change in temperature.

An angle fixing fixture relates to the field of tooling fixtures and includes: a right-angled triangle shaped positioning block and clamping claws. Each the clamping claw is provided with a clamper, and a position of the clamper on the clamping claw is adjustable. Each the clamping claw is detachably connected to the positioning block. The clamper is located outside the positioning block, and a certain distance is left between the clamper and the positioning block. An end surface of an end of the clamper close to the positioning block is parallel to one of outer side surfaces of the positioning block. The number of the clamping claws is at least two. The angle fixing fixture can meet the need of 90 degrees connection of two plates as well as the needs of other angle connections, and has a simple structure and is easy to use.

An angle fixing fixture relates to the field of tooling fixtures and includes: a right-angled triangle shaped positioning block and clamping claws. Each the clamping claw is provided with a clamper, and a position of the clamper on the clamping claw is adjustable. Each the clamping claw is detachably connected to the positioning block. The clamper is located outside the positioning block, and a certain distance is left between the clamper and the positioning block. An end surface of an end of the clamper close to the positioning block is parallel to one of outer side surfaces of the positioning block. The number of the clamping claws is at least two. The angle fixing fixture can meet the need of 90 degrees connection of two plates as well as the needs of other angle connections, and has a simple structure and is easy to use.