Abstract: A retention chuck for glass pipes for machines producing glass containers is provided. The retention chuck has a central supply channel for the glass pipes, a plurality of adjustable clamping jaws arranged at the lower end of the supply channel and so as to be distributed around a centerline of the channel. The spacing of the jaws from the center line of the supply channel is adjustable by an actuation element. A coupling element couples the jaws to the actuation element. Guides guide the adjustment movement of the clamping jaws perpendicularly, radially inwardly relative to the center line.

Abstract: Clamping device having a receiving opening which is arranged concentrically to a workpiece spindle axis, wherein the clamping device is designed for clamping a gear workpiece comprising a head region and a shaft, the clamping device comprises an annular planar contact surface, which is arranged concentrically to the workpiece spindle axis, is located in a workpiece-side end region of the clamping device, and which extends essentially perpendicular to the workpiece spindle axis, wherein at least one circumferential groove is provided in the workpiece-side end region, which groove extends from an outer surface of the clamping device radially in the direction of the workpiece spindle axis and which provides the clamping device with elasticity in the region of the planar contact surface.

Abstract: Provided is a retracting chuck that does not rattle even though a moving body can be operated axially, and that enables turning in which the grasp accuracy is increased and vibration and chatter are inhibited. The retracting chuck (100) is provided with: a body (1) comprising a rear body (2) disposed on the axial rear side and a moving body (3) disposed on the axial front side; a plunger (8) moving axially in the body (1); and a master jaw (6) which engages with the plunger (8) and which is caused by a wedge action to move in the radial direction by a slot (3a) formed in the moving body (3). The moving body (3) moves axially relative to the rear body (2). In the rear of body (2), a plate spring (11) is disposed in a bridging manner between seats (2a) provided at a distance from each other, and the plate spring (11) is fastened by a bolt (13) to each of the seats (2a). Between the seats (2a), the plate spring (11) is fastened by a bolt (16) to a seat (3b) of the moving body (3).

Abstract: A diaphragm chuck for a machine tool has a first clamping diaphragm and a second clamping diaphragm which is offset relative to the first clamping diaphragm along an axial direction. The first clamping diaphragm has multiple first chuck jaws and the second clamping diaphragm has multiple second chuck jaws, and the first and the second clamping diaphragms are detachably connected to one another.

Abstract: The present invention relates to a device (1), such as a chuck intended for connection to a drive unit, intended to hold elongated objects (11) such as fishing rod parts in conjunction with surface treatment. The device (1) is comprised of at least one first inner part (9) and at least one outer second part (10) which are pivotally arranged relative to one another between at least one first position where the object (11) can be inserted into the device (1) and at least one second position where the object (11) can be fixed temporarily to the device (1) with at least three elastic bands (14).

Abstract: A diaphragm chuck with an operating element inserted in a chuck body and axially movable in relation to the chuck body, a diaphragm attached to a free end of the operating element with the diaphragm secured to the chuck body by its outer circumference, three base jaws in driving connection with the diaphragm, on each of which a centering surface is disposed in a concentric alignment with the axis of the operating element, three clamping jaws attached to the corresponding base jaws, by which a gear to be machined can be clamped and which make contact with the centering surface, and clamping pins, each allocated to one of the clamping jaws, radially aligned and arranged between two teeth of the gear in the clamped condition, such that the diaphragm chucks reliably clamps differently sized gears and gears with different numbers of teeth between the three clamping jaws.

Abstract: A diaphragm chuck for a machine tool has a first clamping diaphragm and a second clamping diaphragm which is offset relative to the first clamping diaphragm along an axial direction. The first clamping diaphragm has multiple first chuck jaws and the second clamping diaphragm has multiple second chuck jaws, and the first and the second clamping diaphragms are detachably connected to one another.

Abstract: A diaphragm chuck (1) with clamping jaws (3) inserted in its chuck body (2) in a driven connection with a diaphragm (4) that can be deformed by an axially adjustable actuator (5) and is provided with clamping jaws (3) with contact pieces (22), in which counterweights (8) assigned to the clamping jaws (3) are inserted into recesses (7) of the chuck body (2) and the clamping jaws (3) can be clamped against the diaphragm (4) by means of quick-clamping devices (31) engaging in the contact pieces. The contact pieces (22) are each provided with an intermediate element (101) in the area between the clamping jaws (3) and the quick-clamping devices (31) by means of which the flexural moments and/or rotational torques created by the quick-clamping device (31) can be eliminated and it is possible to transmit exclusively axially vectored tensile forces onto the clamping jaws (3).

Abstract: A diaphragm chuck assembly having clamping jaws disposed in a chuck body and in driven connection with a diaphragm deformable by an axially adjustable actuator, the clamping jaws having contact pieces, in which counterweights are disposed in recesses of the chuck body and the clamping jaws are clamped against the diaphragm by means of quick-clamping devices engaging in the contact pieces, the contact pieces being arranged in the diaphragm and in the counterweights with radial play. The clamping jaws are supported against a first surface extending axially in parallel to the chuck body in the clamping position and against a second reference surface extending at right angles to the first reference surface and into the diaphragm. The clamping jaws can be changed in a short time and the clamping jaws can be replaced without having to be reground.

Abstract: The present invention provides an improved chuck having an engagement feature for positively locating and securing work engaging jaws on a chuck assembly, such as a diaphragm chuck assembly. In another aspect, the improved chuck also provides a quick change feature for rapid and improved mounting of the work engaging jaws to the chuck assembly.

Abstract: A workholding apparatus including a body and a drive member carried by the body, so that the drive member and body partially define a fluid chamber therebetween for containing a fluid. A driven member is also carried by the body and includes multiple displacement reliefs therein. An intermediate member with a displacement relief is received between the drive and driven members. The intermediate member prevents the drive member from extruding through the displacement reliefs in the driven member under fluid pressures of the fluid, thereby enabling use of the apparatus under higher performance applications that would not be possible without the intermediate member.

Abstract: A chuck has a chuck body rotatable about a chuck axis, a plurality of holders angularly spaced about and radially displaceable on the body and each formed with an outwardly flared seat centered on a respective seat axis, and an actuator for radially displacing the holders on the body. Respective jaws on the holders each have an inwardly tapered stem complementary to and engaged snugly in the respective seat. Respective locking elements in the holders are each displaceable into a locking position securing the respective stem in the respective seat.

Abstract: In a diaphragm chuck (3) with clamping jaws (3) which are in a drivable connection with a deformable diaphragm (4) by means of jaw carriers (6) and in which counterweights (8) allocated to the clamping jaws (3) are inserted in the chuck body (2), the clamping jaws (3) are provided with axially aligned joining pieces (23) which are held in the counterweights (8). The clamping jaws (3) can be clamped together with the jaw carriers (4) and the diaphragm as well as with the counterweights (8) by means of quick clamping devices (31) which engage in the joining pieces (23).This embodiment achieves a situation in which the clamping jaws (3) can be changed rapidly and in a straightforward procedure by releasing the quick clamping devices (31) by means of a tool which can be inserted radially from the outside into the chuck body (2).

Abstract: A jaw assembly used with the rotary driving member of an air cylinder to process a workpiece, including a casing having a center through hole into which the rotary driving member of the air cylinder is inserted, a springy jaw holder covered on the casing, the springy jaw holder having two springy thinner areas and a rigid thicker area concentrically arranged around a center through hole thereof, a plurality of jaws and a pair of rails radially provided at an outer side, and a T-block moved in between the rails and fixed at the desired location to hold the jaws on the jaw holder, a socket mounted in between the casing and the springy jaw and coupled to the rotary driving member of the air cylinder, a plurality of counterweights mounted around the socket and connected between the casing and the jaw holder, the counterweights each having a plurality of through holes, and a plurality of axle bushes respectively mounted in the through holes at the counterweights and connected between the casing and the jaw holder

Abstract: The invention relates to a holding device for balancing disk-like inertial bodies, which comprises at least two clamping elements (8) centered on a center axis (A), such elements (8) having a respective radial abutment face (34), wherein the clamping elements (8) are provided on a connecting part (10) having at least one elastically deformable portion, which connecting part produces an equal shift of all clamping elements (8) on deformation. A connecting part (10) with the clamping elements (8) is provided on an elastically deformable wall (6), which is constituted by a thin-walled diaphragm (6) extending in a radial plane in relation to the center axis (A), such diaphragm being arranged coaxially in relation to the connecting part (10) and the clamping elements (8).

Abstract: Workholding apparatus for mounting a workpiece (6) on a machine tool, the apparatus comprising a diaphragm chuck portion (2) and a tailstock portion (4). The chuck (2) includes a backing ring (70) with face portion (74) attached to the diaphragm (44) with the backing ring (70) having a centering locator guide (76) for centering and stopping the axial advancement of a workpiece in the chuck (2). The chuck (2) also includes a support ring (106) including material (109) located at the periphery thereof for sealing the area between the chuck and the workpiece and dampening vibrations brought about by the machining process. The tailstock portion (4) comprises a rotatable tailstock support (112) having at least one workpiece seating surface (117). The tailstock includes a centering locator guide (114) extending axially from the tailstock support (112) and having a generally curved outer surface (115) for centering the workpiece in the chuck (2).

Abstract: A resilient clamp (15) is provided which has the general shape of a dish or of a bell, and which is provided with radial slots (18) in its peripheral part and a central solid annular part. Structure is provide (21) for centering the clamp (15) with respect to the driving shaft (2). The lateral segments of this clamp (15) move radially with respect to the axis of the clamp when the central part (16) thereof is moved along this axis.

Abstract: A wafer processor including a wafer support for holding semiconductor wafers. The wafer support member includes wafer gripping fingers mounted in receptacles formed through a wafer support plate. The fingers are angularly displaced to spread the fingers and allow loading of wafers therebetween. The fingers have central cores which are flexibly mounted within a mounting flange by a thin diaphragm. A pivot control supports the cores and carries axial loading. The pivot control members preferably are U-shaped and can serve as connections to an actuator. A locking mechanism is also shown to secure the actuator connection.