摘要:
Described is a coupling device between a workpiece support or a tool support, such as for example a tool system module, for example in the form of a basic tool holding fixture, and a handling device, such as for example a machine tool, especially a spindle. For rapidly producing and releasing the connection between these components while making high axial forces available, a clamping device with an operating rod is provided by which a key mechanism is controlled, with which clamping elements provided in the part to be coupled can be pressed essentially radially outward into a suitably shaped recess on the other part to be coupled. The clamping elements are formed from at least three clamplike claw-type clamps placed at a uniform angular distance to each other, placed essentially parallel to a centering extension of the basic tool holding fixture and able to be pivoted, while being braced in a centering mounting of the spindle with a claw section lying radially inside the centering extension in the coupled state, into a groovelike recess of the centering extension. This coupling device is distinguished by a high flexibility with regard to application possibilities for producing them economically.
摘要:
A cutting tool is described which comprises at least one exchangeable cutting blade mounted on a parallellepiped cutting blade holder which in turn is adapted to be fixed by a setscrew at a tool body. The setscrew passes through the cutting blade holder such that the holder is pressed flat against a first recess surface and, at the same time, in the direction of a second recess surface extending at an angle with respect to the first one, the setscrew penetrating the cutting blade holder with clearance for freely adjustable fastening such that it includes an angle of substantially the same size with both recess surfaces and presses the cutting blade holder against the second recess surface by two adjustable support members of which at least one is designed as a rotatable eccentric pin the axis of which extends substantially parallel to the associated second recess surface and which is supported in a fitting recess of the cutting blade holder or of the tool body. The eccentric pin is retained in the fitting recess by a hairpin-type spring whereby very simple and economic assembly is obtained of the cutting blade holder and the eccentric pin.
摘要:
A drill having two or more cutting edges is provided with interchangeable cutting members. The cutting members are fastened by screws in corresponding recesses formed in the drill bit. The cutting members are embodied by interchangeable plates and provided with fastening portions behind the main cutting edge, in the direction of cutting. The screws engage through these fastening portions in threaded bores formed in the front face of the drill bit.
摘要:
A medical instrument having a force-limiting apparatus that, upon reaching the borderline force, ensures maintenance of the applied resistance force. It is proposed that the force-limiting apparatus should include a housing in which two components that can move in opposite directions to one another in the longitudinal direction of the housing are disposed in such a way that both components are disposed so that they can slide axially in the housing against the force of at least one spring element disposed in the housing, such that the two components are coupled with one another by at least one force transmission element that is acting on both components.
摘要:
A tool holder includes a hollow taper shank chucking device having a center axis, a chucking device, a tension rod which cooperates with the chucking device and an actuating unit by means of which the tension rod may be actuated, i.e., displaced. The actuating unit has an actuating element which is movable at an angle relative to the center axis and which includes at least one actuating part. The angle may be 90°. The tension rod is provided with at least one engagement part. The actuating part and engagement part form a wedge mechanism which is used to convert a radial motion of the actuating element, i.e., a displacement perpendicular to the center axis, into an axial displacement of the tension rod in the direction of the center axis.
摘要:
An adjustable holding apparatus for an endoscope or other medical device having a proximal end and a distal end, the adjustable holding apparatus having a device for holding an endoscope or other medical device that includes a number of arm segments between the proximal end and the distal end, a number of lockable joints that each connect two of the number of arm segments with one another in jointed fashion, and a compensation device for at least partial compensation of the weight impact of the holding apparatus in a pivoting or sliding of at least one arm segment in the vertical direction.
摘要:
A medical instrument with a shaft having a tool on a distal end including a movable jaw member and a handle on a proximal end with a movable gripping member, wherein the jaw and gripping members are in operational connection by a traction/compression element, and wherein a force-limiting device is positioned between the gripping and jaw members for limiting force transmitted from the gripping member onto components in operational connection with the gripping member. Upon exceeding a maximum load, the device reversibly severs the components that are coupled with one another. The force-limiting device includes a housing including two components that can slide with respect to one another with one component mounted rigidly in the housing and the other component positioned to slide axially in the housing against the force of a spring element, such that the two components are coupled by a force transmission element acting on both components.
摘要:
A tool holder includes a hollow taper shank chucking device having a center axis, a chucking device, a tension rod which cooperates with the chucking device and an actuating unit by means of which the tension rod may be actuated, i.e., displaced. The actuating unit has an actuating element which is movable at an angle relative to the center axis and which includes at least one actuating part. The angle may be 90°. The tension rod is provided with at least one engagement part. The actuating part and engagement part form a wedge mechanism which is used to convert a radial motion of the actuating element, i.e., a displacement perpendicular to the center axis, into an axial displacement of the tension rod in the direction of the center axis.
摘要:
Described is a boring tool cooled from within made of a tool spiral and a clamping cylinder. The tool spiral is received in an interlocking way in a recess of the clamping cylinder and is supplied with coolant over its proximal end, which lies in the recess. The tool spiral (4; 44; 74) is received in a spring chuck (12) which, on the side facing away from the clamping cylinder, carries a drive disk (22; 62; 92) that engages in an interlocking way into the grooves. Further, the chuck body (14) has a central internal thread (26) in which an adjusting screw (24) having a central recess (32) is provided, an adjusting screw (24) against which the tool spiral under sealing of its coolant channels (8; 48; 78) can be pressed against the inner space (34) of the spring chuck (12). Tool spirals consisting, for example, of hard metal can be used more economically in this way.
摘要:
A cutting tool is disclosed, particularly a ball track milling cutter, comprising a tool holder in which a turnover cutting disc is received that includes four cutting edges of circular arc segment shape. The cutting disc is received in a slot dividing the tool holder into two clamping jaws and is adapted to be clamped in position by a clamping screw which extends diametrically and passes through the cutting disc in the area of an opening. In addition to the clamping screw a thrust piece is provided to press the cutting disc with two cutting flanks axially against abutment faces at the bottom of the slot. The thrust piece is embodied by a nut extending through the cutting disc and adapted to be threaded into one of the clamping jaws, the nut having an outer conical portion located opposite the opening in the cutting disc throughout the height thereof and adapted to be engaged progressively in firm line contact with an inner surface area of the opening facing the slot bottom, as the nut is being screwed in, at the same time, pressing the turnover cutting disc against abutment faces of the tool holder while engaging the nut, the clamping screw tightens the clamping jaws against the turnover cutting disc.