Abstract: An adapter device for ceramic cutting machines (2) that includes an adapter plug (1) for the hole (8) of the tool holder (7) of a ceramic cutting machine (2. The plug (1) includes a hollow cylindrical shape with a stop (12) that performs an axial fixation in a direction of the plug (1) in the hole (8) of a tool holder (7) of the ceramic cutting machine (2); and a longitudinal slot (13) that leaves open the inner hollow space of the plug (1) along its entire length. The longitudinal slot (13) has a narrower segment in a part of the plug (1) that is nearest the end (21) having the stop (12), and a wider segment in the part of the plug (1) that is near the end (22) of the plug (1) opposite the stop (12).

Abstract: A clamping chuck (1) for radially clamping workpieces with a cylindrical outer clamping surface includes an annular base member (2) which has a hole (5), a shoulder (11), which projects inwards radially and forms a contact surface for the workpiece, an axially-extending hole face (10) and tabs (12) which project inwards radially. Arranged on the base member (2) is a clamping member which is divided into a plurality of substantially L-shaped clamping elements (21), which each include a clamping head (24) arranged in the hole and an actuating lever (27) which extends outwards radially from the clamping head (24). Each clamping head (24) includes, on the outer side thereof, at least one cam (25), which projects outwards radially, engages in a gap between the shoulder (11) and the tabs (12) and is supported radially by the hole face (10) and axially by at least one tab (12).

Abstract: Various embodiments of the invention provide a tool for adjusting a military phone jack. A tool for adjusting a military phone jack, the tool comprising a modified head cap screw, an expanding split collet, a collet receiver shaft, and a jam nut driver. The modified head cap screw has an edge of the head cap machined to an angle between 1 and 89 degrees with respect to the unmachined portion of the head cap which is further from the screw shaft. The expanding split collet comprises a central hole throughout its longitudinal axis with the hole of sufficient diameter to receive the modified head cap screw, two or more slits through the exterior wall of the collet and extending from one end of the collet, and a machined inner diameter of the end of the collet having the slits, the angle of the machined inner diameter matching the angle on the head cap of the modified head cap screw.

Abstract: The invention concerns a collet (1) for holding a lens (2), comprising a shank (3) and at least two gripping jaws (4) separated from one another by radial slots (5), wherein a shape of an upper edge region (6) of the gripping jaws (4) is designed as a radial continuation of a region (7) to be processed of the lens (2) that is to be held by the collet (1).

Abstract: The present invention relates to a holding device for studs having a radially projecting flange section. The holding device comprises a collet component having a clamping section and a hollow insertion section. The clamping section is formed by clamping surfaces which are provided at the free ends of a plurality of clamping arms designed to exert a radially inwardly directed clamping force for clamping the stud in place. A securing device is arranged on the insertion section and is designed in such a way that a flange section of a stud directed past the securing device is mounted in a securing position between the securing device and the clamping section. The clamping arms are of the same length and at least two of the clamping arms each have, as a securing device, a radially inwardly directed securing lug.

Abstract: A coupling device for securing medical instruments to a holding device allows for simple and rapid handling and exact positioning of the medical instrument. A coupler socket is configured on one component and a coupler plug is configured on the other component, wherein the coupler socket and coupler plug can be fixed in mutually connected position with respect to one another by means of at least one locking element. The coupler socket is configured as a sleeve-shaped collet chuck including several mutually distanced spring arms. The coupler plug includes a coupling pin equipped with at least one radially outward-pointing catch cam. When coupled, at least one catch cam of the coupling pin catches on a corresponding back-cut on the collet chuck. The locking element can be screwed onto the collet chuck so that the spring arms of the collet chuck in the coupled position are affixed facing radially outward.

Abstract: A simple three piece machined steel Collet-Spindle Adaptor for angle grinders includes a hat-shaped base having interior threading for coupling with a threaded spindle on an angle grinder. A sleeve extends therefrom and has an interior surface which engages with a collet. The preferred adaptor converts an angle grinder to accept die grinding tools and other similar tools, thereby providing flexibility of tooling, flexibility of application and work area, ergonomics in operator comfort by providing two hand operation, safety in lower operating tool speed, and reduced cost as an additional die grinder and expensive air compressor are not required. Simple machined design allows rapid change over and small size allows easy toolbox storage.

Abstract: A clamping apparatus comprises a chuck member and a collet member that includes, at its rear side, a peripheral shoulder. The top side of this shoulder is provided with a thrust surface adapted to engage radially displaceable clamping balls of the chuck member. The bottom side of the shoulder is provided with four centering grooves that cooperate with four centering cams provided in the chuck member. Upon clamping the collet member to the chuck member, the collet member is positioned in X- and Y-directions as well as regarding the angular orientation around the Z-axis by means of the centering cams of the chuck member engaging the centering grooves of the collet member. The collet member is provided with an annular rear surface adapted to rest on Z-reference surface portions of the chuck member upon clamping the collet member to the chuck member.

Abstract: In a spindle assembly for machine tools, the axial length ? of the collar of a spring collet is determined as a function of the axial course length c of a clamping sleeve operating spring collet. This axial length ? is preferably retained within an interval ranging between 3 mm and 9 mm. A tapering surface of the collar presents an inclined profile, which is straight, curved, or at least partially curved. The angle of inclination formed by the tapering surface with the axis of the spring collet is advantageously of the order of 45°. The spring collet has at least two grooves. The gap between these grooves may be determined in such a way that, when the spring collet is in the closed position, then the workpiece is gripped with a predetermined clamping force, and the two mutually opposing faces of each groove portion abut against each other.

Abstract: A quick-change core drill includes an adapter and a generally tubular drill barrel. The adapter comprises a first end adapted to be removably connected to a drill spindle and a second end adapted to be removably connected to the drill barrel. The drill barrel includes an inside diameter D1, a first end, and a second end having a crown with an inside diameter D3. The first end of the drill barrel is adapted to be removably connected to the second end of the adapter such that the inside diameter D1 is at least as large as the inside diameter D3. Upon detection of a jammed core inside the drill barrel, the user can quickly and easily remove the jammed core from the drill barrel by disconnecting the drill barrel from the adapter. Since there are no obstructions present, the user can simply remove the jammed core from the first end of the drill barrel.

Abstract: A Chucking device comprising a collet with an external taper and a collet holder with a taper socket for the chucking of a rotating part, wherein the taper socket of the collet holder and the external taper of the collet have a taper angle which is smaller than the self-locking angle, and the collet has a head for applying an axial force for pressing it into the holder and for pulling it out of the holder.

Abstract: The present invention comprises a machining apparatus including a work piece holder having an adapter body with an axial bore and a translating portion located within the axial bore of the adapter body. The translating portion has a proximal end for coupling with a retention knob collet of a spindle and a distal end for attaching to a collet. The work piece holder includes a retaining piece coupling the adapter body and the translating portion allowing the translating portion to move axially within the adapter body. The apparatus facilitates a rotating spindle grasping and rotating a work piece to be brought into contact with a processing tool held stationary on a work table. The present invention also includes a fixture block for attaching milling tools and other devices to a work table and a method of operating a milling machine utilizing the fixture block and work piece holder.

Abstract: A pole apparatus having a telescoping tubular body, an open end and a closed end the body and defining an aperture extending into the interior of the body. A first connector is mounted on the open end of the body and includes an axial bore that is in communication with the interior of the body. A second connector may be mounted on the closed end of the body and includes a base and an arm extending outwardly from said base and in axial alignment with the body. Finally, there is also disclose a tool having and head portion and a separate mounting portion adapted to engage and be removably secured within the bore of the first connector.

Abstract: A tool holding apparatus includes a spindle and a collet nut engaged with a spindle wherein a recess is defined between the spindle and the collet nut. A collet is disposed in the recess and includes a first tapered portion and a second tapered portion spaced from the first tapered portion, wherein the first and second tapered portions form substantially equal angles with respect to a longitudinal center line of the collet.

Abstract: A tool holder includes a body, a collet, and a collet mover. The body is formed to include a collet chamber and a collet-mover chamber arranged to communicate wit the collet chamber. The collet includes a tool-gripping surface arranged to define a tool-receiving chamber adapted to receive a machine tool therein. The collet is mounted for movement in the collet chamber along a central axis of the body between a tool-grip position to cause the tool-gripping surface to move radially inwardly toward the central axis to grip the machine tool in the tool-receiving chamber and a tool-release position to cause the tool-gripping surface to move radially outwardly away from the central axis to release the machine tool. The collet mover is positioned to lie in the collet-mover chamber and is coupled to the collet to draw the collet along the central axis to the tool-grip position.