Abstract: A clamping means in the type of an outer clamping means or an inner clamping means for fixed-clamping of work pieces, for the purpose of rotative processing. For achieving a radial displaceability of the clamping segments thereof, an inclined guide surface of a clamping sleeve or of a clamping mandrel with correspondingly inclined slide surfaces on the clamping segments are used. For the application of force into the clamping segments, at least one coupling element is provided on the housing or on the actuation member. The clamping element is axially fixed to the housing or to the actuation member and engages with at least one clamping segment axially in a form-fit manner in a coupling region between an in axial direction distal guide surface region of the guide surface and an in axial direction proximal guide surface region of the guide surface.

Abstract: An actuator according to example embodiments may be relatively compact and may be driven with 2 degrees of freedom with less spatial constraints. The actuator may include a base member, a ball screw member including a ball screw coupled to the base member and a ball nut screwed onto the ball screw, a driving member coupled to the ball nut so as to move in conjunction with the ball nut, a first directional displacement member configured to move in a first direction in response to a first movement of the driving member, a wedge member coupled to the driving member so as to be moved in a second direction in response to a second movement of the driving member, a second directional displacement member configured to move in a second direction in conjunction with the wedge member, and a binding member configured to bind the first directional displacement member to at least one of the driving member, the wedge member, and the base member.

Abstract: The invention relates to a method of coupling a honing tool (2) to a honing spindle (1), a honing spindle suitable therefor, a honing tool suitable therefor and a honing device comprising a honing spindle and a honing tool. According to the invention, a method of coupling a honing tool to a honing spindle is proposed which has the following steps: inserting the honing tool into the honing spindle into a joining position in which a honing-tool centre axis (24) is oriented coaxially to the honing-spindle centre axis (23); locking the honing tool on the honing spindle in the joining position by actuating an adjusting device (5, 6) assigned to the honing spindle. Furthermore, a honing spindle, a honing tool and a honing device which are suitable for carrying out the method are provided.

Abstract: A hand tool having an elongated plunger assembly that is rotatably and movably disposed in a socket. The plunger assembly can be rotated between a first orientation and a second orientation as well as being moved between a first, withdrawn position and a second, extended position. The plunger assembly also has an upper notch and a lower notch on a front side and at least one generally flat lateral side. A fixed latch member extends across a portion of the socket and defines a narrow passage within the socket. The hand tool, preferably, includes a compression spring biasing the plunger assembly toward the extended position.

Abstract: The invention relates to a chuck comprising a chuck casing (3) and jaws (1) moved radially outwardly and having an axially extending clamping face (17) for clamping a workpiece. The jaws (1) are guided in radial guides and are provided with two sloping guideways on an axially slidable clamping piece (4) is guided in such a manner that the jaws (1) are moved radially upon an axial sliding motion of the clamping piece (4). A jaw casing (2) accommodating the radial guides of the jaws (1) is carried for axial movement in the chuck casing (3) and is supported on the chuck casing (3) in the direction of the clamping movement of the clamping piece (4) via an axially resilient spring element (9).

Abstract: An apparatus and associated method is provided for precisely positioning a datum surface of a component. The apparatus has a housing defining a tooling datum surface. A collet is supported by the housing that is selectively operable between a retracted mode and an expanded mode. In the retracted mode a clearing disengagement is defined with the component. In the expanded mode a contacting engagement with the component is defined. The contacting engagement and a simultaneous longitudinal force transferred by the contacting engagement to the component pressingly engage the datum surfaces together. The apparatus further has a bias member exerting the longitudinal force and urging the collet to the retracted mode.

Abstract: The invention relates to a method of coupling a honing tool (2) to a honing spindle (1), a honing spindle suitable therefor, a honing tool suitable therefor and a honing device comprising a honing spindle and a honing tool. According to the invention, a method of coupling a honing tool to a honing spindle is proposed which has the following steps: inserting the honing tool into the honing spindle into a joining position in which a honing-tool centre axis (24) is oriented coaxially to the honing-spindle centre axis (23); locking the honing tool on the honing spindle in the joining position by actuating an adjusting device (5, 6) assigned to the honing spindle. Furthermore, a honing spindle, a honing tool and a honing device which are suitable for carrying out the method are provided.

Abstract: A machine tool arbor for holding a rotating machine part or workpiece is fitted with an actuator member at a back or distal end of an arbor main body for tool-less chucking and unchucking of a machine part or workpiece at a front or proximate end of the arbor main body. An actuator ring or knob is mounted at the back end of the arbor main body which, when rotated in one direction, causes an pusher member (collet pusher part, hydraulic piston) to move in such a manner as to displace a chuck member (inclined collet, flex collet, expansion ring) and release the machine part or workpiece that is chucked. When rotated in the opposite direction, the actuator knob causes the actuator member to move in an opposite manner as to fix the chuck member in a position to firmly hold the machine part or workpiece to be chucked.

Abstract: The abutment of the rod to the work piece is accomplished in a stable manner by providing an air passage in the inside of the work support for supplying pressurized air for detecting the abutment between the rod and the work piece. Work support is equipped with case, rod, sleeve that elastically deforms to reduce its diameter, hydraulic cylinder for driving rod in an advancing direction, spring for elastically energizing rod in advancing direction, detection nozzle for ejecting pressurized air, air passage connected to detection nozzle, sensor for detecting abutment between the tip of rod and work piece based on air pressure, and a control unit. Work piece is supported by the tip of rod abutting work piece while ejecting pressurized air from detection nozzle, and locks rod by elastically deforming sleeve to reduce its diameter after detecting the abutment of rod by a pressure sensor and control unit.

Abstract: A hydraulic cylinder (4) moves a rod (3) in the direction of the axial center. The interior of a casing member (2) has an annular pressure booster (7) for pressurizing the oil in an external hydraulic chamber (6). The casing member (2) has a pressurized oil feed port (27) for feeding pressurized oil to the rod-moving hydraulic cylinder (4) and the input oil chamber (16) of the pressure booster (7). A throttle valve (8) is interposed in an oil supply channel extending from the pressurized oil feed port (27) to the input oil chamber (16). An oil discharge channel, extending from the input oil chamber (16) to the pressurized oil feed port (27), is provided with a nonreturn valve capable of discharging pressurized oil from the input oil chamber (16). The nonreturn valve (9) is opened when the pressurized oil is discharged through the pressurized oil feed port (27).

Abstract: An automatic abrasive sleeve tightening means and quick release system for an oscillating spindle sander is disclosed, in which a flyweight assembly automatically tightens the abrasive sleeve against the sanding drum of the oscillating spindle sander, upon activation of the sander's motor, without any manual manipulation thereof, and in which a quick release system, comprised of a pin assembly is used to lock down the top washer located atop the sanding drum and is used to release said top washer quickly and efficiently.

Abstract: The invention provides an expanding mandrel comprising a shaft (1) having a conical forward end (10), an expanding sleeve (5) constituted by a ring provided with longitudinal slits designed to slide over said conical forward end (10), the inner wall of said sleeve (5) itself also having the shape of a cone the apex angle of which is equal to that of the conical forward end (10), and a tie member (2) designed to be connected to a rod that can be caused to slide along the axis of the machine spindle to control the gripping or the release of a workpiece. According to the invention, the sleeve (5) is connected to said tie member (2) via a control ring (3) integral with the tie member (2), and the mandrel comprises a removable quick mounting means enabling the sleeve (5) to be secured to said control ring (3).