An output rod (20) of an electric clamping device includes: a tubular power transmission member (25) screw-connected to a decelerator (6); and an output rod main body (24) disposed radially inward of an inner peripheral surface of a cylindrical hole of the power transmission member (25) with a clearance between the output rod main body (24) and the inner peripheral surface. The output rod (20) further includes: a rotation preventing mechanism (26); a lock-side driving mechanism (27, 42), a release-side driving mechanism (28), and an output rod guide mechanism (29).

An adaptable assembly line work-piece processor for use at a work station includes, but is not limited to, a work-piece supporter. The adaptable assembly line work-piece processor further includes, but is not limited to, a reconfigurable interface assembly attached to the work-piece supporter. The adaptable assembly line work-piece processor still further includes, but is not limited to, a work-piece manipulator attached to the reconfigurable interface assembly. The work-piece supporter, the reconfigurable interface assembly, and the work-piece manipulator are configured to cooperate to sequentially support and manipulate a plurality of differently configured work-pieces.

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 piston (4) is inserted in a housing (1) so that the piston (4) is vertically movable. A housing hole (5) is vertically provided in the piston (4), and an output rod (6) is inserted in the housing hole (5) so that the output rod (6) is vertically movable. A converting mechanism (22) converts vertical movement of the piston (4) into rotary movement of the output rod (6). A guide groove (28) is provided in a circumferential direction on an inner circumferential wall of the housing hole (5), and a stopping part (29) is provided at an end part, in the circumferential direction, of the guide groove (28). An engaging member (31) which is provided on an outer circumferential wall of the output rod (6) is caused to face the stopping part (29) of the guide groove (28) at a given distance in the circumferential direction from the stopping part (29) so that the engaging member (31) can be in contact with the stopping part (29).

A swing clamp includes a body having a chamber, a piston supported for movement within the chamber along an axis, and a rod connected to the piston for movement with the piston along the axis. The rod includes a first groove and a second groove. The swing clamp further includes a first guide engaging the first groove at least while the rod moves within a first region along the axis, and a second guide engaging the second groove while the rod moves within a second region along the axis.

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).

A swing clamp includes a body with a first end and second end. The body defines a bore through the first end and a cavity at the second end. The bore is in communication with the cavity. A plunger is slidably and rotatably held in the body bore. A lever is pivotally connected to the second end. A link arm pivotally connects between the plunger and the lever. A housing includes an attachment portion and a cylindrical portion. The cylindrical portion includes a bore to enable passage of the plunger. A groove is formed in an inner surface of the bore. The groove guides a pin coupled with the plunger. A clamp finger is secured on the end of the plunger. The clamp finger rotates as the plunger is moved in the bore.

Apparatus for positioning and fixing molded blanks of eyeglass frames to a multi-axis machine tool, for finishing operations such as, for example, milling and boring. The apparatus comprises a base plate to be fixed to the worktable of the machine tool and a pair of adjacent cylinders vertically extending from the base plate to which they are fixed at their lower ends, with the interposition of a hydraulic or pneumatic seal. The vertical axes of the pair of adjacent cylinders are horizontally spaced apart from each other by a length that substantially corresponds to the center-to-center distance between the lens receptacles formed in the eyeglass frame blank to be finished. Each cylinder is provided with a respective piston element therein, whose upper end is connected to a cylindrical core whose upper end portion, distal to the base plate, has a frustoconical shape. Said piston element is vertically movable in their respective cylinder, under pneumatic control, thus causing the raising and lowering of the cylindrical core connected thereto. At the upper end, distal to the base plate, of the wall of each cylinder of the pair of cylinders, a radial slide group is housed, each having a respective block of plastic material whose profile can be machined into such a shape as to be able to fit into and engage with the inner profile of the respective lens receptacle, to hold it in position during the processing operations. The radial slides and therefore the respective blocks are imparted a rectilinear radial motion to and from the central axis of the cylinder, obtained by a sliding coupling between the end of each slide, facing the axis of the cylinder, and opposed axial guides radially projecting from the frustoconical section of the cylindrical core connected to said piston element.

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.

A clamp assembly and method of clamping includes a fixture having a cavity formed by a facing surface. The facing surface in the clamp assembly can define a cavity periphery. In addition, a recess can be provided in the facing surface. An elastic member can be disposed within the recess.