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 fluid pressure cylinder comprises a rod insertion hole formed in a piston member, an auxiliary rod provided to a head side wall member so as to be inserted into the rod insertion hole, an open/shut valve mechanism for detection, and a fluid passage that is opened and shut by the open/shut valve mechanism. The open/shut valve mechanism includes a valve body reception hole formed in the auxiliary rod, a valve body that is movably held in the valve body reception hole and that has a recessed engagement portion on its external peripheral portion, and a spherical body mounted on the auxiliary rod so as to engage with the recessed engagement portion; when the piston member has reached a set shifting position, the valve body is changed over to the closed position or to the opened position due to cooperation between the spherical body, the recessed engagement portion, and the inner peripheral wall portion of the rod insertion hole.

The present invention relates to a tubular clamp module and a system thereof, and in particular, to a tubular clamp module and a system thereof applicable to a roll material cutting machine. In the tubular clamp module of the present invention, a slope is disposed at a top end of a support, and support rods slide on the slope to support tubular plates to form an appropriate radian, so as to provide a desirable tubular clamping force in combination with the force applied by a pressing belt. In the tubular clamp system of the present invention, a plurality of tubular clamp modules is used and various driving wheels and driving belts are disposed to enable synchronous adjustment of the positions of the support rods and the length of the pressing belt, so as to rapidly complete clamping of rolls having different diameters and provide a desirable tubular clamping force.

A first rod (21) is inserted into a first guide hole (11) so as to be movable in a vertical direction. A second rod (22) is inserted into a second guide hole (12), which crosses the first guide hole (11), so as to be movable in a horizontal direction. An accommodation groove (31) is disposed in a lower half portion of the first rod (21). The second rod (22) is provided with an insertion portion (32) to be fitted in the accommodation groove (31). A cam groove (38) provided in the insertion portion (32) is fitted over a pin (35) provided in the lower half portion of the first rod (21). A driving means (D) connected to the second rod (22) moves the second rod (22) in the horizontal direction.

An auto-positioning hydraulic pneumatic fixture contains a base, at least one locking device, multiple pistons, multiple positioning modules, and multiple platforms. The base includes at least one installation zone for fixing at least one locking device. A respective one locking device includes a fixing module and a clamping module. The fixing module has a body, a connection segment, and an affix portion. The clamping module includes a positioning bolt and a pair of clamp units, and each clamp unit has a clamping face. The affix portion has a defining groove and a linear slot. The body has at least one tilted rail, and a respective one positioning module has a mounting unit and at least one locating unit. The mounting unit has two oblique faces and multiple fringes, and s respective one platform is configured to fix the respective one workpiece.

A locating pin assembly including a locating pin movable between extended and retracted positions. The locating pin includes a locating pin top having a top end and a bottom end, a locating pin base receiving the bottom end of the locating pin top, and a dowel pin configured to couple the locating pin top and locating pin base together. The locating pin assembly also includes a drive rod moveable relative to the locating pin. The drive rod includes a drive rod top having a top end and a bottom end, and a drive rod base partially housing the drive rod top. The locating pin assembly also includes a finger coupled to the drive rod and movable between extended and fully retracted positions, the finger is extended by the drive rod without movement of the locating pin, and the finger is rotatable from a first position to a second position.

A pneumatic actuator (240), comprising: a pressure reducer (270) for delivering gas under a reduced pressure to a control valve; the control valve (280) selectively supplying gas to a pneumatic cylinder (290) or discharging gas from the cylinder (290) to the environment; a replaceable gas capsule (260) for supplying the gas under increased pressure; where the actuator has a first mode of operation for moving the piston (293) to the extended position, and has a second mode of operation for retracting the piston (293). A method for assembling a pneumatic actuator. A portable tool, a clamping device, a screw clamp comprising such a pneumatic actuator. A method for assembling the screw clamp. A method for repairing the screw clamp.

A pin clamp assembly has a housing, an actuating device and a movable locating pin. A clamping device is coupled with the actuating device to move within the locator pin. The clamping device includes a rod and a finger. The finger extends and retracts in and out of the locating pin to enable the locating pin and clamping device to be moved so that the clamping finger clamps a workpiece.

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.

A clamping apparatus includes: locking members (80) insertable into a hole (11) of a workpiece (10); and a clamp rod (70) configured to make a wedge engagement with the locking members (80) from above. Each locking member (80) includes a base portion (85) configured to be inserted into the hole (11); and a protruding portion (87) located above the base portion (85). A relative movement restriction mechanism (M) configured to restrict downward movement of the clamp rod (70) relative to the locking members (80) within a predetermined travel distance allows descent of outer peripheral surfaces (85a) of the base portions (85) relative to an inner peripheral surface of the hole (11) when the locking members (80) are in a diameter-expanded position.