Abstract:
A fastening nut for fastening a receiving body and a collet together is disclosed. The fastening nut comprises a main body having an outer surface, a first end, and a second end distal to the first end and a plurality of blades located radially on the outer surface of the main body, wherein each blade is at an angle to the second end. The fastening nut is attachable on the receiving body for coaxial retention of the collet. Furthermore, axial rotation of the fastening nut creates a suction proximate the second end of the fastening nut. In one embodiment of the fastening nut, the plurality of blades protrude axially past the second end of the main body in a direction away from the first end. A tool bit holding system and a system and method for machining specimens comprising the fastening nut are also disclosed.
Abstract:
A router includes a motor assembly, at least a first rail and at least a first rolling element pair mounted to the motor assembly, where the first rolling element pair engages the first rail. The router may further include a second rail and a second rolling element pair mounted to the motor assembly, where the second rolling element pair engages the second rail.
Abstract:
A powered surgical apparatus for use with a source of irrigation fluid and a source of suction and for powering a surgical tool such as a cutting blade. The surgical apparatus includes a handpiece and a cutting blade retention assembly integrated in passage in a distal end of the handpiece. The retention assembly includes an aligned, pair of radially movable buttons, aligned in axially extending passages in communication with the passage in the distal end of the handpiece, the movable buttons can engage with and cause rotational movement of a collet member assembly rotatably supported in the passage in the distal end of the handpiece. The collet assembly includes a plurality of rolling lock members which can be moved by the collet member from a first or lock position, in which the lock members are forced by the wall of the passage to extend inwardly of the collet member to engage a groove of the surgical tool, and a second or unlocked position, in which the lock members are aligned with a recess in the wall of the passage and are not forced to extend inwardly of the collet member.
Abstract:
A tensioning device for surgical elements is described. The tensioning device comprises a fixation device, a clamping device, a spring device, and a force deflecting device that interacts with the clamping device. The force deflecting device is designed to convert the spring force exerted by the spring device on the clamping device into a clamping force exerted by the clamping device on the surgical element.
Abstract:
A work piece carrier is provided with two reference systems for accurately positioning it with regard to a chuck member. The work piece carrier comprises a central aperture with the two opposite ends of the aperture surrounded by one of the reference systems. The two reference systems are independent from each other and allow the work piece carrier to be attached to the chuck member in two different positions. Assigned to each reference system is a protrusion surrounding the central aperture and extending substantially in the direction of the central longitudinal axis of the work piece carrier. The particular protrusion is provided with a shoulder serving as a clamping surface, adapted to be engaged by clamping elements provided in the chuck member. Preferably, also the centering elements for defining the position of the work piece carrier with regard to the chuck member are located on the particular protrusion.
Abstract:
The present invention is directed to an arbor chuck workholding assembly comprising an arbor chuck (2), outer ring (6), clamp ring (8) and backing ring (10). The arbor chuck comprises a plurality of holding angle lugs (18) and ejecting angle lugs (20) located about its periphery. The outer ring (6) comprises a plurality of complementary holding angle ramps (22) and ejecting angle ramps (24) located on its inner diameter surface. A machine spindle (4) is rotated to engage the holding angled lugs (18) with the holding angle ramps (22) such that the arbor chuck will be drawn into position against the spindle. For disengaging, a reverse rotation of the spindle will result in ejecting angle ramps (24) engaging ejecting angle lugs(20) to loosen the arbor chuck from the spindle. Therefore, no tools are required to secure the arbor chuck to the machine spindle.
Abstract:
The pressing device serves for the relative axial movement of two parts, which are arranged coaxially with respect to one another and are moveable relative to one another only by high pressing power. The pressing device has one fixed pressure plate and one pressure plate which is moved axially by hydraulic cylinders and an insert which is to be placed around the parts which are to be pressed. The insert is held closed by means of a closure door which is articulatedly mounted on the moving part of the pressing device. The pressure cylinders are arranged as close as possible to the center of pressure, that is to say to the axis of the parts which are to be pressed.
Abstract:
A tool chucking apparatus to hold a machining cutter or tool includes a holding member and a fastening member that are coupled together to form a housing space inside to hold a clipping member in a tight manner. The coupled holding member, fastening member and clipping member form a threaded passage to hold the cutter or tool through the clipping member. The clipping member has a plurality of pawl structures which are spaced in an annular manner and formed in a conical structure. The conical structure has a top end directing towards the fastening member. The fastening member and the holding member have respectively a corresponding coupling structure. The fastening member further has an encasing portion extended towards the holding member.
Abstract:
The collet reduction serves for inserting into a collet receptacle of a machine tool and fastening by means of a fastening nut. It is provided on its outer side, between its part on the machine side and its part on the tool side, with receiving means for receiving an element which surrounds it in an annular manner. The fastening nut engages on this element and pulls the reduction out of the receptacle during unscrewing.
Abstract:
An assembly generally comprises a collet for receiving a cutting tool shank and a lock nut for creating a gripping force between the collet and the cutting tool shank. The collet has a nose and the lock nut has a front face that is substantially flush with the nose. The lock nut further has a fastening element that mates with a fastening element of a coolant sealing ring for attaching the coolant sealing ring to the lock nut so that the coolant sealing ring may be detached from the lock nut.