Provided is a clamp system with enhanced functionality achieved by detecting the behavior of an object to be clamped, using a stroke-end position detector that has been used for switching stroke operations. A clamp device 1 has an output member 12 which executes a stroke movement causing a change in the distance by which a coil 15 is inserted into a hole 14 having a bottom. A converter 23 outputs a measurement value of the inductance of the coil 15. The inductance of the coil 15 when a work W has been clamped by the output member 12 is stored in a work clamp point memory 22e, and a clamp area indicating a variation range permitted with respect to a work clamp point is set in a clamp area memory. During processing of the work, a control unit 2 measures the inductance of the coil 15, determines whether the work clamp point is within the range of the clamp area, and, if the range is exceeded, issues a signal indicating an emergency stop.

A clamping system includes a housing, a clamping lever pivotally coupled relative to the housing, a clamping arm pivotally coupled relative to the housing and the clamping lever, and an expandable link coupled to the clamping arm. The clamping lever and the clamping arm are rotatable from an open position to a closed (clamped) position. A method of mounting a device on a substrate using the clamping system is also provided.

A piston cylinder has a piston housing including a bore. A piston assembly is movable in the piston cylinder bore. The piston assembly includes a piston disk and a piston rod. A lock piston is movable in the piston cylinder. A lock plate is pivotally secured in the piston housing bore. The lock plate is contacted by the lock piston to move the lock plate into an unlocked position when fluid pressure is applied to the lock piston. A biasing mechanism is in contact with the lock plate. The biasing mechanism moves the lock plate into a locked position when fluid pressure is released or reduced on the lock piston.

Modular carriage for varying spacing between ends of polymer pipe during fusion. The modular carriage includes a fixed jaw; an inner movable jaw; an outer moveable jaw and a plurality of guide rods. The fixed jaw being adapted for tool free engagement with the terminal ends of the plurality of guide rods. A carriage cylinder is associated with at least two of the guide rods and mounted for reciprocal travel along the length of its associated guide rod. The movable jaws being adapted for tool free engagement with at least two carriage cylinders for reciprocal travel therewith. A combined hydraulic cylinder/guide rod includes a guide rod with an integral guide rod piston, a cylindrical tube, and a guide rod gland on each end of the cylinder tube.

A reconfigurable interface assembly includes, but is not limited to, a first sub-assembly that is adapted for attachment to a work-piece supporter. The first sub-assembly includes a first brake. The reconfigurable interface assembly further includes a second sub-assembly attached to the first sub-assembly. The second sub-assembly is adapted for attachment to a work-piece manipulator. The second sub-assembly includes a second brake. The first sub-assembly is configured to move the second sub-assembly in a first direction with respect to the first sub-assembly and the first brake is configured to inhibit movement of the second sub-assembly in the first direction with respect to the first sub-assembly. The second sub-assembly is configured to move the first sub-assembly in a second direction with respect to the second sub-assembly and the second brake is configured to inhibit movement of the first sub-assembly in the second direction with respect to the first sub-assembly.

A hands-free dual clamp device includes two clamping units, each having an upper clamping body, a lower clamping body, a mating portion, and a shaft module. The shaft module is spirally inserted through the upper and lower clamping bodies and is rotatable, so as to enable the upper and lower clamping bodies to be adjustable at angles with respect to each other and cooperatively form a clamping space for clamping an external object. A connecting module includes at least a connecting unit having two opposite end portions, which are respectively provided with a first connecting element and a second connecting element. The first connecting element connected to the mating portion of one of the clamping units, and the second connecting element connected to the mating portions of the other of the clamping units, so that the two clamping units are linked together with the connecting module.

The invention relates to a clamping cylinder (100) comprising a body (110) and a movable assembly (102) contained in a receiving chamber (112) of the body, rotatable and translatable relative to the body along a predetermined movement axis (V), the cylinder comprising guide means (142; 150) in order to guide the movable assembly between a clamping position and a free position. The guide means comprise: at least one cylindrical roller (150A-150D) arranged on the body of the cylinder such that the axis of the roller is essentially perpendicular to the movement axis (V), a rod (104) of the movable assembly extending along the movement axis and being configured so as to comprise at least one movement portion (142) having a polygonal section in a plane normal to the movement axis, the section comprising at least one rectilinear edge, the movement portion (142) being configured such that said section follows an essentially helical base line around the movement axis over at least a fraction (143) of the portion, the rod (104) and the rollers (150A-150D) being positioned such that a roller is arranged across from each of the sides of the polygonal section.

The device (1) for locking workpieces on machine tools comprises:a base body (2) fixable to a machine tool (M) and provided with an oil hydraulic cylinder (3, 4, 5); 5a rod (8, 9) partly inserted in the oil hydraulic cylinder (3, 4, 5) slidably;roto-translation means (14, 15, 16) designed to divide the motion of the rod (8, 9) into:a first stretch (12) of roto-translation; anda second stretch (13) of translation; 10a clamp element (19, 20) associated with the rod (8, 9) and movable between:a home configuration;an intermediate configuration; andan operating configuration; 15at least a prismatic guiding body (21) associated with the base body (2) and prismatically couplable with the clamp element (19, 20) during the shifting of the rod (8, 9) along the second stretch (13).

The device (1) for locking workpieces on machine tools comprises: -a first hydraulic cylinder (2) inside which at least one piston (3, 4) is inserted slidably along a main line (A); -a second hydraulic cylinder (15) inside which the first hydraulic cylinder (2) is inserted slidably along the main line (A), the feeding of a pressurised hydraulic fluid into a first chamber (8) being designed to apply to the first hydraulic cylinder (2) a primary force (F) that shifts the first hydraulic cylinder (2) from a home position to a second operating position; -an auxiliary chamber (28) provided between the first hydraulic cylinder (2) and the second hydraulic cylinder (15) and associated with pneumatic feeding means (29, 30, 31) designed to feed pressurised air into the auxiliary chamber (28), the feeding of the pressurised air applying to the first hydraulic cylinder (2) an auxiliary force (Fa) along the main line (A) in the same direction as and operating in conjunction with the primary force (F).

A device for clamping a part to a tool includes an arm and a body that is fastened when in use to the tool, the arm being mounted in a movable manner on the body and being driven by actuating means between a clamping position and a releasing position, and undergoing a pure movement in translation along an arm axis at the end of its travel towards its clamping position and rotation about the same arm axis at the end of its travel towards its releasing position, the movement of the arm being determined by guide members.