A clamping device has, comprising a drive (1) with a linearly movable actuator (2). A position monitoring device (3) detects the position of the actuator (2). A pivot member (4) is operatively connected to the actuator (2) and is rotatably mounted about an axis of rotation (8). The axis of rotation (8) is stationary with respect to the drive (1). The position monitoring device (3), for detecting the position of the actuator (2), is designed to cooperate with the pivot member (4).

The present invention relates to a clamping device having a mounting element with an axis of rotation X, an actuator, a support that has an opening of axis X in which opening the mounting element and the actuator are positioned. The mounting element includes a slide in which there are positioned a ring and a locking wedge which collaborate with at least one angle transmission. The support has an interior groove arranged in the opening and the ring and the locking wedge collaborate with the interior groove. The mounting element can thus easily be angularly positioned. There are preferably two angle transmissions positioned such that they are diametrically opposed.

A portable press configured to selectably apply either compression or expansion forces to objects or workpieces, thereby permitting multiple functions such as pressing, bending, fixturing, spreading, lifting, and position holding assistance in fabrication applications to the objects or workpieces.

The invention relates to a bore clamp for clamping a workpiece having a workpiece bore located in the workpiece, with a radially expandable clamping bush, a displaceable clamping bolt for expanding the clamping bush in the clamping position, and with a clamping bolt drive for axial displacement of the clamping bolt into the clamping position. According to the invention, the clamping bolt drive includes a laterally displaceable piston and a wedge gear with wedge surfaces sliding on each other for converting the lateral movement of the piston into a corresponding axial movement of the clamping bolt in the clamping direction.

The device (1) for restraining/locking mechanical parts on machines tools comprises: a hydraulic cylinder (2); a first piston (9) comprising a head (10) which projects from the hydraulic cylinder (2), the first piston (9) being slidable along a main line (B1); at least two self-centring locking elements (19) joined to the head (10) in such a way that they are movable along lines of sliding (B2) which are substantially transversal to the main line (B1); and movement means (21, 22) for moving the self-centring locking elements (19) between a retracted position and an extracted position, wherein the movement means (21, 22) comprise: a hydraulic chamber (21) made in the first piston (9); a second piston (22) which is slidable along the main line (B1) between a starting position and an arrival position and which comprises an operating portion (23) joined to the self-centring locking elements (19).

A modular gripper has a body with a trident section and cylindrical section. A powering assembly is positioned in the cylindrical section. A pair of oppositing jaws is pivotally secured between a center wall and a pair of side wall, respectively, of the trident section. The piston rod moves a cam assembly on the center wall. The cam assembly passes through a body having a trident section and cylindrical section. The trident section comprises a trident structure that includes, at one end, a pair of side walls along with a center wall. The cylindrical section includes a fluid driven powering assembly. A pair of opposing jaw member are pivotally secured to the trident portion about separate pivot pins. A cam assembly is operatively connected to a piston rod of the fluid driven powering assembly. The cam assembly extends laterally outward with respect to a cylinder bore axis to receive a cam bush that engages with a through slot on each of the pair of opposing jaw members. The jaws rotate with respect to one another in response to fluid power in the cylindrical section. A pair of side plate members, each slide plate member has an elongated blind slot that receives an end of the cam assembly, the ends travel in the blind slot. Cam slots in the pair of opposing jaws, via a cam bushing.

An automatic oil return structure is provided. The automatic oil return structure has an oil storage bag, a piston, and a main body assembly. The piston has an oil storage chamber. The main body assembly has a main channel, a piston oil channel, a pressure regulating channel, a control channel, an operation channel, a minor channel, and an oil return channel. When the pressure of the main channel achieves a limit pressure, the pressure pushes the control blocking assembly away such that the pressure regulating channel communicates with the communication channel, and the pressure also pushes the operating assembly away such that the minor channel communicates with the return channel. At the same time, the pressure of the oil storage chamber pushes the oil blocking assembly, so as to isolate the oil storage chamber from the main channel, and the oil storage chamber communicates with the oil return channel.

A support system (1) for a horological component (9), in particular for a horological component comprising a surface (91) generated by revolution and/or an axis (A9), includes a positioning device (2), in particular a centering device, for the horological component (9) in relation to an axis (A) of the system, and a holding device (3) for the horological component (9), the positioning device and holding device being independent and/or different and/or distinct.

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.

An output member (7) is inserted in a housing (5) so as to be movable in a left-right direction. A lock chamber (20) is provided to the right of the output member (7), as a first actuation chamber. Compressed air is supplied to and discharged from the lock chamber (20) through a first supply and discharge passage (24) provided in the housing (5). A first holding valve (30) provided to an intermediate portion of the first supply and discharge passage (24) is configured to close and open the first supply and discharge passage (24).