Abstract: A chuck for a machine tool for supporting rotationally symmetrical components, the chuck being adapted to prevent contamination of a guide groove area, wedge rods and the chuck body, in any operational position of the clamping jaws of the chuck.

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 quick-change top tooling system is provided to accommodate various sized and configurations of workpieces to be chucked. The quick-change top tooling system includes a chuck body, at least one jaw assembly, and at least one workstop assembly. The jaw assembly comprises a master post fixed to a surface of the chuck body and a jaw releasably coupled to the master post. The workstop assembly comprises a workstop base mounted to the surface of the chuck body and a workstop releasably coupled to the workstop base. The at least one jaw and workstop may engage and clamp a workpiece to be chucked to maintain the concentricity and parallelism of the workpiece.

Abstract: A chuck assembly includes a chuck base configured to interface with a spindle of a machine tool, a cartridge including a receiving opening for receiving a workpiece to be worked using the machine tool, and clamping jaws disposed proximate to a working end of the chuck base to hold the cartridge therebetween. The cartridge further comprises a multi-axis clamping and locating assembly that simultaneously positions the workpiece and clamps the workpiece responsive to insertion of the workpiece into the receiving opening such that at least a portion of the workpiece that is to be worked via the machine tool is aligned with an axis of rotation of the chuck assembly.

Abstract: An adjusting magnetism shelter of a cutter holder has a stationary collar, a sliding assembly and a cap. The stationary collar has a disk and multiple sliding recesses. A first hole is defined in the disk. The sliding recesses are defined in the disk. The sliding assembly has multiple sliding bars. Each sliding bar is mounted in a sliding recess and has a magnetism bar and a moving shaft. The magnetism bar has a reflection surface. The moving shaft protrudes from each sliding bar. The cap covers the stationary collar and has a top board. The top board has multiple arc grooves. Each arc groove has an inner end and an outer end. The inner end of the arc groove is near the first hole. The outer end of the arc groove is far away from the first hole and is inserted into one of the moving shafts.

Abstract: A quick change jaw system for chucks is provided. The quick change jaw assembly includes a master jaw including a first pair of coplanar abutment surfaces defining a first aperture; a clamping device including a dovetail portion being disposed in the first aperture of the master jaw, wherein the dovetail portion rests above the first pair of coplanar top surfaces of master jaw; a top jaw formed with a groove longitudinally extending along a length of the top jaw, the groove being complementary to the dovetail portion and configured for engaging the dovetail portion, the top jaw including a second pair of coplanar abutment surfaces extending along opposite sides of the groove; and a cam for actuating the clamping device for urging the second pair of coplanar abutment surfaces of the top jaw into coengagement with the first pair of coplanar abutment surfaces of the master jaw.

Abstract: An arrangement at a vice or chuck, where a jaw insert (22) in the vice or chuck is arranged such that it can be rotated around at least one axis (A) such that a holding surface (23) of the jaw insert, which holding surface is turned to face a second holding surface (26) on a second jaw insert (25), can be displaced by rotation of the jaw insert (22) around the axis (A) from its normal holding position facing the second holding surface (26) to a working position in which the holding surface (23) does not face the second holding surface (26) and in which it can be accessed for working.

Abstract: A chuck mechanism for grasping a work comprises a stage, a master jaw provided on the stage, and a soft jaw fixed to the master jaw, in which a plurality of serrations extending in two different directions are formed on the abutting surfaces of master and soft jaws, respectively. Since the serrations are fitted, there is no such a risk that the soft jaw is displaced in the direction of the surface abutting against the master jaw. Consequently, reproducibility of fixing of the soft jaw becomes very high and a chuck mechanism having a soft jaw having a high reproducibility of fixing thereof can be provided.

Abstract: The invention relates to a tool holder comprising a tool receptacle for frictionally clamping a tool shaft. A sleeve is arranged between the tool shaft and the clamping surface of the tool holder, said tool holder applying pressure to the tool shaft via the sleeve, producing the friction fit. At least one of the bearing surfaces of the sleeve is interrupted by open surfaces that are designed and arranged such that they form the damping cavities.

Abstract: A drill chuck has a body formed with a forwardly open threaded bore and a holder sleeve rotatable on the body and formed with a plurality of forwardly open angled guides angularly equispaced about the axis. Respective jaws are shiftable radially along the guides between a widely spaced outer position and a closely spaced inner position. Each jaw has a central tool-engaging tooth and a pair of faces flanking the respective tooth, and each tooth and the adjacent flanking faces are so dimensioned and oriented relative to each other that in the inner position the flanking faces of adjacent jaws bear on one another. A pusher threaded into the bore bears axially forward on the jaws and is angularly coupled to the jaws and holder sleeve so that relative rotation or the chuck body and pusher moves the jaws between their inner and outer positions.

Abstract: The invention relates to a tensioning device, especially for machine tools, in which a deforming tensioning element acts on a clamping part with a clamping force which results from the deformation in order to fix or release a fixing element.

Abstract: A deep throat chuck jaw system adapted to be used with a lathe with or without a headstock hole is provided. The system includes a set of jaw extension members having an inboard end supported from a face of a master chuck jaw coupled to a lathe chuck. The jaw extension members also include an outboard end. The set of jaw extension members are operable to grip an outer surface of a part having an outer diameter greater than the headstock hole with a clamping assembly clamped around the outboard end.

Abstract: A chuck for mounting wheel castings having different diameters upon a wheel lathe for machining the casting to final shape is provided. The chuck includes stepped jaw inserts that cooperate with corresponding stepped part supports to securely mount the wheel castings upon the chuck.

Abstract: A manufacturing cell having a plurality of work stations, where at least one of the work station comprises a metalworking machine, and where at least one metalworking machine is provided with a modular tooling apparatus. The modular tooling apparatus consists of a base having one or more attachment surfaces, and one or more inserts that can be inserted semi-permanently to the attachment surfaces. The attachment surface is typically a pocket in the surface of the base. The insert has a workpiece support feature that can support and/or secure the workpiece into the proper position and orientation for machining. The base, pockets and inserts are configured to provide a characteristic location and orientation for the workpiece relative to the base, and to the metalworking machine.

Abstract: A drill-chuck jaw hag an elongated metal body formed with a toothed back face and an opposite front face. The body is generally symmetrical to a longitudinal plane bisecting the back and front faces. A pair of hard-metal insert parts fixed to the front face are each formed with a projecting linear edge extending longitudinally parallel to but offset from the plane. The edges symmetrically flank the plane.

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: An insert for use in a gripping assembly is disclosed. The insert includes a base member having a plurality of gripping teeth. The teeth are arranged in at least two substantially adjacent rows, where at least one row of teeth is offset or staggered longitudinally from an immediately adjacent row of teeth. When the teeth engage a cylindrical member, a resistance profile is created that is substantially continuous and does not oscillate over a length of the insert approaching 100% of the length of the entire insert.

Abstract: A drill-chuck jaw hag an elongated metal body formed with a toothed back face and an opposite front face. The body is generally symmetrical to a longitudinal plane bisecting the back and front faces. A pair of hard-metal insert parts fixed to the front face are each formed with a projecting linear edge extending longitudinally parallel to but offset from the plane. The edges symmetrically flank the plane.

Abstract: A drill-chuck jaw is made by first forming an elongated metal body with a toothed back face and a planar front face and thereafter laser-welding an insert to the body on the face. After machining the body but before laser-welding the inserts to it, the body is heat-treated and surface hardened. After the heat-treating and surface-hardening step and before the laser-welding step, the body in tampered.

Abstract: A chuck has a chuck body adapted to be rotated about a chuck axis and a plurality of elongated jaw arms angularly spaced about the axis, pivotal in the chuck body about respective guide axes extending secantally of the chuck axis, and axially slidable in the body. Each jaw arm has a front outer end formed with a generally axially extending and radially inwardly directed outer face and an axially outwardly and forwardly directed inner face extending radially inward from an axially inner end of the outer face. Each outer face converges axially outward with the chuck axis and forms a small acute angle with the chuck axis. Respective jaw inserts each have a pair of faces complementary to and flatly engaging the respective jaw faces. These inserts are releasably secured to the jaw outer ends with the insert faces bearing on the jaw faces. The faces are planar. In addition each insert is formed with at least one throughgoing hole extending substantially parallel to the outer insert face.

Abstract: A drill-chuck jaw is made by first forming an elongated metal body with a toothed back face and a front face, then machining a longitudinally extending groove having sides and a floor in the front face, and forming inwardly projecting and longitudinally spaced retaining bumps on the groove sides. A hard-metal insert is fitted into the groove between the retaining bumps and then bonded to the body in the groove. the body is heat-treated, that is annealed, before machining the groove in it to reduce internal stresses. Then the body is cleaned and oiled to prepare it for machining and to eliminate any oxidation created by the heat treatment. After machining the body and before fitting the insert the body is deburred and cleaned again. Normally the insert is bonded to the body by soldering or brazing In order to allow the insert to seat directly on the jaw and not be held off it by the solder a channel is formed between the insert and the body in the groove.

Abstract: An improved jaw for a rod gripping device is provided including a front, rod engaging face with a plurality of teeth or studs made of a material harder than the jaw body, such as tungsten carbide, with the studs positioned to engage an outer rounded rod surface. In one embodiment, the studs are oriented radially inward toward a longitudinal axis defined by the rod engaging surface. The rod engaging face of the jaw may have a concave shape in its lengthwise direction, thus being adapted to grasp a cylindrical member such as a rod or pipe section. A tool for gripping a rod including a pair of jaws is also provided.

Abstract: A chuck has a chuck body adapted to be rotated about a chuck axis and a plurality of elongated jaw arms angularly spaced about the axis, pivotal in the chuck body about respective guide axes extending secantally of the chuck axis, and axially slidable in the body. Each jaw arm has a front outer end formed with a generally axially extending and radially inwardly directed outer face and an axially outwardly and forwardly directed inner face extending radially inward from an axially inner end of the outer face. Each outer face converges axially outward with the chuck axis and forms a small acute angle with the chuck axis. Respective jaw inserts each have a pair of faces complementary to and flatly engaging the respective jaw faces. These inserts are releasably secured to the jaw outer ends with the insert faces bearing on the jaw faces. The faces are planar. In addition each insert is formed with at least one throughgoing hole extending substantially parallel to the outer insert face.

Abstract: A jaw assembly for a jaw chuck for holding a workpiece to the spindle of a machine, such as a lathe, includes an intermediate coupling member that engages a master jaw slot formed in a master jaw which is disposed in a radial guide formed in the body of the chuck. A retaining mechanism secures the intermediate coupling member within the master jaw slot. A top jaw is configured to be connectively engaged with the intermediate coupling member by inserting the intermediate coupling member into a top jaw slot. The top jaw is held securely to the intermediate coupling member, and, accordingly, to the master jaw, when the retaining mechanism is tightened. During top jaw change-out the retaining mechanism is released, thereby permitting the top jaw to be disengaged from the intermediate coupling member while still loosely retaining the intermediate coupling member within the master jaw slot.

Abstract: A chuck jaw that is configured and arranged to be used in combination with other chuck jaws for securely retaining a rotatable accessory, such as a drill bit, in position in a chuck assembly, where the chuck jaw includes a chuck jaw body that defines a generally longitudinal axis along the primary extension direction thereof and a chuck jaw tip that is positioned within the chuck jaw body and extends along at least a portion of the generally longitudinal axis of the chuck jaw body. The chuck jaw further includes an insulating material for preventing electrical current from passing between the rotatable accessory and the remainder of the chuck assembly via the chuck jaw.

Abstract: A squaring machine has an elongate housing with a rotatable spindle extending from one end thereof and attached to which is a tool for squaring the end of work piece. At the opposite end of the housing are first and second feed members, the first feed member in the form of a screw which is locked against axial movement within the housing, and the second feed member in the form a nut which is locked against rotation with respect to the housing. The feed nut is rotatably connected to an end of the spindle such that rotation of the feed screw will cause axial movement of the spindle. Also, the machine includes a first and second removable retainers, each of which has a pair of opposing jaws for clamping around a cylindrical work piece, however, the jaws of the first retainer are for grasping a work piece of a different size than the jaws of the second retainer.

Abstract: A top jaw for attachment to a master jaw slidable radially in a front face of a rotary chuck toward and away from a central rotational axis of the chuck, the top jaw being suitable for alternate gripping of the inside and outside periphery of a tubular workpiece. When positioned for gripping the outside periphery of a workpiece the top jaw includes a base having a radial locating face and a second locating face directed centrally of a chuck and an insert having a radial locating surface and a transverse locating surface facing away from the chuck axis and cooperating with said base second locating face. One of the base and insert have a slot with side locating faces perpendicular to the radial locating face and the other of the base and insert have a projection with locating surfaces perpendicular to the radial locating face, each opposing an associated one of the side locating faces. A fastener connects the insert to the base.

Abstract: An apparatus for drilling lock wire holes in lock wire nuts includes a variable speed drill press mounted on a work bench and having a vertically movable drill quill supporting a rotating drill spindle on one end of which is mounted a drill chuck for holding and driving a drill bit for drilling a hole in the lock wire nuts. An N/C microprocessor is coupled to the drill press for controlling the vertical motion of the drill quill in a peck drill cycle. A nut holder, including a collet chuck having three jaw inserts is mounted in a chuck indexer for positioning the chuck in any of three 120.degree. angularly spaced positions about a central longitudinal axis through the chuck. A drill guide in each of said jaw inserts guides the drill bit at an angle against said faces of said nuts to drill lock wire holes through the nut lobes.

Abstract: A jaw carrier arrangement is provided with a main jaw carrier which removably mounts a top jaw. The jaw carrier has a bore opening outwardly through a front face for receiving a rear support post provided on the top jaw. A clamping structure is provided on the jaw carrier to securely and rigidly hold the top jaw in snug engagement with the front face. The clamping arrangement includes radially inner and outer clamping members having opposed riblike wedges which project inwardly toward the post for engagement within wedgelike grooves which are formed on diametrically opposite sides of the post and extend perpendicularly thereacross.

Abstract: A chuck jaw is provided for holding an irregularly-shaped object such as a differential housing on a lathe. A chuck jaw body which is pivotally mounted to each chuck mounting block to pivot about an axis substantially tangential to a cylinder defined around the turning radius of the lathe. A first end of the chuck jaw body extends radially further in than a second end of the chuck jaw body, so that the first end can engage a radially smaller part of the irregular object, while the second end engages a radially larger part. Springs and adjustment screws preferably are provided to allow adjustment of the initial angle of the first and second ends.

Abstract: A chuck jaw is provided having a pivotally mounted gripper mounted to the base jaw. Each end of the gripper serves as a chuck point, so that a three-jaw chuck can be used to provide six chuck points. Preferably, rollers are provided at each chuck point of the gripper to ensure even distribution of forces around the workpiece. In addition, spring plungers preferably are provided to limit the degree of pivoting of the gripper relative to the base jaw when a workpiece is not mounted on the chuck.