An air chuck includes: a finger support part including a pair of fingers; a chuck main body part including an operation mechanism operable to open and close the pair of fingers; and linking mechanisms that detachably link the finger support part to the chuck main body part. The linking mechanisms each include: a linking shaft that extends from the finger support part; a shaft insertion hole formed in a body of the chuck main body part; a catch body that becomes elastically caught on a catch surface of the linking shaft when the linking shaft is inserted into the shaft insertion hole; and a delinking member that is manually operated so as to release the catch body caught on the catch surface when the finger support part is detached from the chuck main body part.

A tooling base that is an improvement over current designs in the form of simplified number of parts, easier manufacturing of parts and that can be actuated for clamping and releasing a tooling fixture by pneumatic, other computer controlled means as well as manually is described. The tooling base uses clamping fixtures that are spring loaded to press cleats into recesses on alignment studs that locate and hold any variety of tooling fixtures to the base.

A pushing structure of a clamping mechanism is disclosed which comprises a working platform and a chuck. The working platform has a clamping shaft inserted in the chuck, and the chuck has a piston seat and a movable seat at a center of the piston seat for an insertion of the clamping shaft. The chuck further comprises a base at a bottom of the piston seat corresponding to the movable seat and a projection at a bottom of the base. The projection provides an upward push force to the working platform when the piston seat is lifted to release the clamping shaft of the working platform.

The invention refers to a chuck pallet (1.3) with solid groove-sidewalls (2.3) for clamping chucks (1.1), whereby the x-y-references (2.5) of the chuck pallet (1.3) are allocated in the same plane (2.1) as the z-references (2.1) and the x-y-references (2.5) are also allocated at the solid groove-sidewalls (2.3). The solid groove-sidewalls (2.3) have thereby a tapered profile.

A fixture to hold a workpiece comprising, among other things, a housing having a passage opening into which a clamping pin is inserted for supporting the workpiece; a driving ring mounted in the housing; and at least two locking pins facing the axis of the opening, mounted radially in the housing so as to be able to move, wherein the clamping pin is locked in the opening of the housing when the locking pins are moved toward the axis, and released from the passage opening of the housing when the locking pins are moved away from axis; wherein, a control surface with at least two different pitches is worked onto an inside of the driving ring, and a contact surface is worked onto an inner wall of the driving ring so as to permit movement of the locking pins by rotation of the driving ring.

In a zero-point clamping device (1) for centred locking of an object (2) with repeat accuracy, in particular a workpiece, a tool or a pallet, or a carrier part (3) to which the corresponding object (2) is attached, the zero-point clamping device comprising: a housing (4), a receiving opening (5) worked into the housing (4), which has a centring axis (6) with which the axis of symmetry (2 or 3) of the object (2) or the carrier part (3) is coaxially aligned during the clamping process, at least two clamping slides (7, 8 or 9), each of which is mounted axially displaceably in a bore (10) provided in the housing (4) and which open into the receiving opening (5) during the clamped condition and thereby act on the object (2) or the carrier part (3) and secure them, and an actuating element (11) which is rotatably mounted in the housing (4) and by means of which the clamping slides (7, 8, 9) can be moved, one axis of rotation (12) of the actuating element (11) running tangentially and at a distance from the receiving opening (5),
on the one hand, this should enable a reliable, permanent and repeatable fixing of a large number of workpieces, tools, pallets or other objects (2) and, on the other hand, the housing (4) of the clamping device (1) should be extremely compact, i.e. its external dimensions can be kept extremely small in height and diameter.

This is achieved in that two spaced-apart threads (13, 14) are incorporated in the actuating element (11), the respective threads (13, 14) of which have identical pitches and are designed to be inclined in opposite directions with respect to one another, a drive pin (15, 16) is inserted in each thread (13, 14), this drive pin (15, 16) being in a driving operative connection with the respective thread (13 or 14) in such a way that the drive pins (15, 16) can be moved along the axis of rotation (12) of the actuating element (11) by means of the rotation of the actuating element (11), that at least two drive segments (21, 22 or 23) are mounted in a floating arrangement in the housing (4) and extend in an arc around the centring axis (6) of the receiving opening (5), that two of the drive segments (21, 22) are coupled in a driving arrangement to the actuating element (11) via one of the respective drive pins (15, 16), that a respective pivot pin (17, 18) is provided between th

A manufacturing method of an iron core product includes: heating an iron core body attached to a jig together with the jig; removing the iron core body from the jig when the jig and the iron core body are heated to denote a first temperature; and separately cooling, after removing the iron core body from the jig, the iron core body and the jig such that the iron core body is at a second temperature lower than the first temperature and the jig is at a third temperature lower than the first temperature.

A pneumatic-fixation connecting having a body, a movable part, a plurality of spheres, a plurality of elastic units, and a plurality of stop units is disclosed, wherein each of the elastic units is disposed between the body and the movable part via each of the stop units, respectively. When an external force is applied on the movable part, the distance between the movable part and the body is reduced and the sphere does not block the connecting pin in the extension tube inside the body. When the external force disappears, the distance between the movable part and the body increases such that the sphere affixes the connecting pin and the body. The stop unit can be used, not only to adjust the length and elastic force of the elastic unit so as to extend the life cycle of the elastic unit, but also to help in changing the elastic unit which in turn enhances the efficiency of the replacement work.

A device for positioning motor vehicle parts in the production or manufacture of motor vehicles. The device includes a main frame, at least one main module configured to be disposed on the main frame, at least one interchangeable first docking plate configured for releasable connection to the main module, and a plurality of first receptacles, arranged on the interchangeable first docking plate, configured to hold the motor vehicle parts at a predefined position during the production.

A pushing structure of a clamping mechanism is disclosed which comprises a working platform and a chuck. The working platform has a clamping shaft inserted in the chuck, and the chuck has a piston seat and a movable seat at a center of the piston seat for an insertion of the clamping shaft. The chuck further comprises a base at a bottom of the piston seat corresponding to the movable seat and a projection at a bottom of the base. The projection provides an upward push force to the working platform when the piston seat is lifted to release the clamping shaft of the working platform.