A cylinder device includes: a first piston (8) inserted in a first cylinder hole (4) so as to be movable in an axial direction, a piston rod (7) being hermetically inserted in the first piston (8), the first piston (8) being fixed to the piston rod (7); a second piston (10, 37) inserted in a second cylinder hole (5) so as to be movable in the axial direction, the piston rod (7) being inserted in the second piston (10, 37); and a partition wall (13) dividing a cylinder hole (6) into the first cylinder hole (4) and the second cylinder hole (5), the partition wall (13) being movable in the axial direction.

The present invention makes a rotary movement smooth, the rotary movement allowing direct detection of the movement of an output member of a rotary clamp. In a clamp, an output member is accommodated in a cylinder hole. A first valve chamber, to which compressed air is supplied, is provided between a lower wall of a housing and the output member. A second valve chamber is a hollowed out portion of the output member so as to be provided open toward the first valve chamber. A valve rod is inserted into the second valve chamber from the lower wall. A valve rod passage that allows the second valve chamber to communicate with outside air is provided in the valve rod, and a seal section is provided in a peripheral gap where the valve rod and the second valve chamber move relatively to one another. The gap is formed so that, as the valve rod and the second valve chamber are in relative movement, there is a region which is sealed by the seal section against movement of the compressed air through the gap between the valve rod and the second seal chamber and the there is a region which is open from the seal.

A clamping device (2) includes: a turning-supporting member (26) formed so as to support a housing (3) which turns when a clamping position is set, the housing (3) turning toward a desired turning angle position about an axis of the housing (3) while maintaining the axis at a constant position; and a bolt (46) which fixes the housing (3) to the turning-supporting member (26) at the desired turning angle position.

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 clamp assembly includes a clamp member and a clip. The clamp member includes a body and an aperture. The body includes an end portion, a first arm, and a second arm. The first arm and second arm each extend from the end portion. The first arm and second arm are laterally spaced apart from one another to form an opening positioned therebetween. The opening extends along an axis. The aperture extends through the first arm and the second arm in a direction orthogonal to the axis of the opening. The aperture is positioned proximate ends of the first arm and the second arm on an opposite side of the opening relative to the end portion. The clip includes a clip body extending partially about the opening axis and securing the clamp member against axial movement relative to the plunger.

A method/system of mechanical holdowns allows a substrate sheet in a CBAM (composite-based additive manufacturing technology) process to lie flat during printing. The invention includes a process of mechanically clamping sheets to be printed by a print head to a flat platen using a set of barrel cam driven clamping fingers. The finger supports are attached to the platen and the fingers can be raised and lowered with respect to the platen. Each finger can rotate while swinging downward toward a sheet at the edge of the platen. To clamp the sheet, the fingers are rotated to the perpendicular position and swung lower down to pinch the sheet to the platen. The process can include additional steps that release some, but not all, of the fingers to allow the sheet to relax before re-clamping them.

Disclosed is a pressing jig for welding an electrode lead located in a lead slit formed at the bus bar to the bus bar in a closely adhered state. The pressing jig includes a first frame having a first distance adjusting unit and a first pressing unit, and a second frame having a second distance adjusting unit facing the first distance adjusting unit and a second pressing unit facing the first pressing unit. The first frame and the second frame are coupled so that a distance between first pressing unit and the second pressing unit is increased when a distance between the first distance adjusting unit and the second distance adjusting unit is decreased, and the distance between first pressing unit and the second pressing unit is decreased when the distance between the first distance adjusting unit and the second distance adjusting unit is increased.

A hydraulic control circuit operable to selectively hydraulically link first and second hydraulic actuators and to bypass that hydraulic link.

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 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.