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 pallet device which can prevent a hook fixed to a pallet from interfering with a workpiece or a tool for a machine tool. The pallet device includes a pallet including a pallet main body which clamps a workpiece, and a replacement hook movably provided in the pallet main body, the replacement hook being movable between a projection position at which the replacement hook projects outside the pallet main body and a retraction position to which the replacement hook is retracted from the projection position to the pallet main body, and a jig to and from which the pallet is attached and detached.

The disclosure relates to a clamping apparatus for fixing in a recess of a component and for holding a workpiece carrier against the component. The clamping apparatus includes a housing for attachment to the workpiece carrier and a clamping sleeve for insertion into the recess. A clamping mandrel is at least partially disposed inside the clamping sleeve. The clamping mandrel is movable relative to the clamping sleeve between a release position and a clamp position. When the clamping sleeve is inserted into the recess and the clamping mandrel is in the clamp position, the clamping sleeve is braced within the recess by a holding force so as to be in a clamped position. When the clamping sleeve is in the clamped position, the housing is movable relative to the clamping mandrel, which permits the housing to move the workpiece carrier into contact with the component and apply a bearing force thereagainst.

A hydraulic cylinder includes a rod insertion hole formed in a piston member, an auxiliary rod provided to a head side end wall member and capable of being inserted into the rod insertion hole, a rod fitting hole formed to pass through the head side end wall member and the auxiliary rod, a movable rod installed in the rod fitting hole and whose end portion toward a head side end wall projects to the exterior, a movement restriction mechanism that prohibits shifting of the movable rod in an unclamping state and permits shifting of the movable rod in a clamping state.

A gripping apparatus includes a frame unit, a gripping unit, a driving unit and a pushing unit. The gripping unit includes two gripping claws. The driving unit includes a central shaft unit and an actuating mechanism operable to move the central shaft unit such that the gripping claws are converted to grip a gripped portion of a shoe last or release the gripped portion. The pushing unit includes a driving mechanism and a pushing seat drivable by the driving mechanism to move to a lifted position to be in contact with the gripped portion. The frame unit includes two positioning members each having a positioning groove spatially communicated with a receiving space defined between the gripping claws and receiving a part of the gripped portion.

An alignment system for a workpiece printing machine comprises a stencil support and a workpiece support, and a planarity control mechanism having at least two actuators arranged to effect relative rotation of the stencil support and workpiece support about both the horizontal axes.

The clamping device according to the invention for clamping at least two processing devices for a sample preparation is made up essentially of at least three clamping blocks arranged in the axial direction, at least two of which are designed as movable clamping blocks, and a displacement mechanism for displacing the movable clamping blocks between an open position for inserting the processing devices, and a clamping position in which the at least two processing devices are clamped one on top of the other in the axial direction between two clamping blocks in each case. The displacement mechanism is designed for displacing the at least two movable clamping blocks in opposite directions.

Disclosed is a clamping device system comprising a block, a first clamp, a first piston, a second piston, a second clamp, a third piston, a fourth piston, a control valve, a first pressure regulator, a second pressure regulator, and, a third pressure regulator. The block comprises a base and a work support plate. The first clamp comprises a first end, a first clamp body and a second end. The second clamp comprises a third end, a second clamp body and a fourth end. The first piston comprises a first piston-first clamp end and a first piston-block end. The first piston-first clamp end is attached to the first end. The first piston-block end is attached to the base. The second piston, third piston and fourth piston are configured similar to the first piston.

This invention comprises a self-centering mechanism for retaining an object, a clamping device for retaining an electronic device or an electronic device in a case, and means to integrate the devices in an adapter form. The structure of the self-centering mechanism allows for a compact device that is capable of fitting a wide range of differently sized and shaped objects. The clamping device allows for means to retain an electronic device or an electronic device in a case that is capable of fitting a wide range of differently sized and shaped electronic device. The self-centering mechanism and clamping device can also be integrated into the form of an adapter for various applications.

A workpiece table includes a frame and at least one workpiece-clamping fixture having a plurality of individually height-adjustable pneumatic workpiece-clamping elements. The workpiece table has at least one second workpiece-clamping fixture having a plurality of pneumatic workpiece-clamping elements. All the workpiece-clamping fixtures can be moved relative to the frame. The workpiece table increases the throughput time of a batch of workpieces at a processing station.