EP4076811A1 - Pièce d'outil destinée à se raccorder à une contre-pièce d'outil, contre-pièce d'outil destinée à se raccorder à une pièce d'outil, et outil - Google Patents

Pièce d'outil destinée à se raccorder à une contre-pièce d'outil, contre-pièce d'outil destinée à se raccorder à une pièce d'outil, et outil

Info

Publication number
EP4076811A1
EP4076811A1 EP20837952.9A EP20837952A EP4076811A1 EP 4076811 A1 EP4076811 A1 EP 4076811A1 EP 20837952 A EP20837952 A EP 20837952A EP 4076811 A1 EP4076811 A1 EP 4076811A1
Authority
EP
European Patent Office
Prior art keywords
tool
counterpart
section
tool part
plug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20837952.9A
Other languages
German (de)
English (en)
Inventor
Jochen Kress
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mapal Fabrik fuer Praezisionswerkzeuge Dr Kress KG
Original Assignee
Mapal Fabrik fuer Praezisionswerkzeuge Dr Kress KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mapal Fabrik fuer Praezisionswerkzeuge Dr Kress KG filed Critical Mapal Fabrik fuer Praezisionswerkzeuge Dr Kress KG
Publication of EP4076811A1 publication Critical patent/EP4076811A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/113—Retention by bayonet connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/11—Retention by threaded connection
    • B23B31/1107—Retention by threaded connection for conical parts
    • B23B31/1122—Retention by threaded connection for conical parts using cylindrical threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/008—Chucks; Expansion mandrels; Adaptations thereof for remote control with arrangements for transmitting torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/02—Connections between the shanks and detachable cutting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/03—Cutting heads comprised of different material than the shank irrespective of whether the head is detachable from the shank

Definitions

  • Tool part for connection with a tool counterpart Tool part for connection with a tool counterpart, tool counterpart for connection with a tool part, and tool
  • the invention relates to a tool part which is set up to be connected to a tool counterpart, such a tool counterpart which is set up to be connected to the tool part, and a tool with such a tool part and such a tool counterpart.
  • Complex tools are composed of different parts, in particular in order to be able to exchange machining heads, which are also referred to as interchangeable heads, or to be able to exchange them in the event of wear or damage, as required.
  • Connection points or interfaces are set up between the various parts of such a tool, via which the various parts are mechanically connected to one another and aligned relative to one another. Such interfaces can also serve to make a tool longer or shorter as required. It should be possible to connect and disconnect parts of the tool in the area of the interface quickly and easily, and the parts should be aligned relative to one another as precisely as possible - in particular with a view to an axial position and a radial position.
  • connection point in which a hollow conical recess cooperates with a conical projection in order to provide radial centering, with flat surfaces resting against one another being provided in the connected state in order to define the axial position.
  • the two parts of the tool are clamped together in the assembled state of the connection point in the axial direction by means of a clamping device.
  • This junction or interface is also known as the HFS interface.
  • the individual parts are typically clamped against one another by means of a double-threaded spindle, as can also be found, for example, in DE 101 12 966 A1.
  • An additional part is therefore required, namely the double-threaded spindle, and at least one further part for its actuation.
  • the production of an internal thread for the engagement of the double threaded spindle, in particular in hard metal bodies is complex and expensive.
  • straight interchangeable heads typically have a base body made of hard metal. The clamping process takes a comparatively long time in such a system and is also prone to errors.
  • the invention is based on the object of creating a tool part, a tool counterpart and a tool, the disadvantages mentioned not occurring.
  • a tool part which is designed to be connected to a tool counterpart, the tool part having a centering section and an axial stop.
  • the tool part also has a plug-in rotary section which is set up to interact with a plug-in rotary counter section of the counterpart tool in order to connect the tool part to the counterpart tool.
  • the tool part is in particular a first part of a connection point or interface of a tool, a second part of this interface or connection point being the corresponding tool counterpart to which the tool part is connected as intended.
  • a tool can in particular the tool part and the Have tool counterpart, also consist of it according to one embodiment; however, it is also possible for the tool to have a larger number of parts, the tool then in particular having a plurality of such intersection or connection points.
  • the tool part can in particular be a tool head or machining head.
  • the tool counterpart can in particular be a holder which is directly part of a machine tool, or which in turn can be introduced into a machine tool and fastened there.
  • the tool counterpart can also be an extension piece, an intermediate part, or the like.
  • the tool part can also be an extension piece or an intermediate part or the like.
  • it is possible that the tool part and the tool counterpart are designed as extension pieces or intermediate parts, which in turn can then be connected again in particular with further extension pieces or intermediate parts, or a tool head or machining head, or a holder.
  • the plug-turning section is particularly designed to interact with the plug-turning counter section of the tool counterpart in such a way that the tool part is firmly connected to the tool counterpart, in particular in the direction of a longitudinal axis of the tool part and / or the tool.
  • the plug-and-turn section of the tool part and the plug-and-turn counterpart section of the counterpart tool preferably together form a plug-and-turn mechanism.
  • a plug-in-turn mechanism is determined in particular in that the parts connected via it are first brought into connection with one another via an axial plug-in movement and then fixed to one another by a rotary movement.
  • a plug-in path covered during the plugging movement is preferably longer, in particular much longer, than an axial path, also referred to as a rotary path, which during the rotary movement of the plug-in-turn mechanism from a first engagement of the elements to be rotated against each other to an axial stop of the Parts are put back together.
  • the tool part In order to fasten the tool part to the tool counterpart by means of the plug-in-turn mechanism, the tool part in particular is first moved in an axial direction relative to the tool counterpart in a plug-in movement - in particular without a rotary movement. displaced, wherein it is then rotated relative to the tool counterpart in order to effect a firm and stable connection.
  • the plug-in rotary section is in particular designed and matched to the plug-in rotary counter section in such a way that the axial movement resulting from the rotary movement following the plug-in movement is in the same direction as the previous one
  • Plugging movement takes place.
  • the tool part is particularly drawn against the tool counterpart.
  • the tool part is displaced in the direction of the tool counterpart.
  • the plug-and-turn mechanism is designed as a bayonet
  • a longitudinal axis of the tool part, the tool counterpart and / or the tool is in particular an axis which extends along a longest extension of the corresponding part and / or which defines an axis of symmetry of the corresponding part and / or which has a designated axis of rotation of the corresponding part coincides when machining a workpiece.
  • An axial direction extends along the longitudinal axis; a radial direction is perpendicular to the longitudinal axis, and a circumferential direction extends in particular concentrically around the longitudinal axis.
  • the plugging movement of the plug-and-turn mechanism takes place in particular in the direction of the longitudinal axis, that is to say in the axial direction; the rotary movement of the plug-in rotary mechanism takes place in particular in the circumferential direction, that is to say around the longitudinal axis.
  • the centering section is set up in particular to center the tool part relative to the tool counterpart in the radial direction, that is to say perpendicular to the longitudinal axis.
  • the axial stop is designed in particular to determine the axial position of the tool part, that is to say the position of the tool part in the direction of the longitudinal axis, relative to the tool counterpart when the tool part is connected to the tool counterpart.
  • the plug-in-turn section has at least one tensioning ramp running along a screw section line. This represents a particularly simple, short and easy to manufacture embodiment of the plug-in-turn section.
  • a screw section line is to be understood in particular as a line that extends along a section of a helix around the longitudinal axis, in particular by at most 180 °, preferably by less than 180 °. In contrast to a thread, there is therefore no need to cut threads which loop around the longitudinal axis over the entire circumference, in particular over the entire circumference several times.
  • the clamping ramp is set up in particular so that a clamping projection of the tool counterpart can slide or run off on the clamping ramp when the tool part is connected to the tool counterpart, in particular during the rotary movement of the plug-and-turn mechanism. Because the tensioning ramp extends along the screw section line, an axial relative movement between the tool part and the tool counterpart is simultaneously brought about during the rotary movement, in particular such that they are braced together.
  • the at least one clamping ramp realizes in particular a clamping wedge, whereby it realizes a wedge gear together with the clamping projection of the tool counterpart, so that the tool part is pulled with great force against the tool counterpart during clamping, especially during the rotary movement of the clamping-rotation mechanism.
  • the plug-in-turn section has two clamping ramps.
  • Both clamping ramps preferably each extend along an associated screw section line.
  • the two clamping ramps are preferably arranged offset from one another in the circumferential direction on the plug-in rotary section, preferably offset by 180 ° or at least approximately 180 ° relative to one another.
  • the two clamping ramps - in particular with respect to equivalent points on the clamping ramps - are arranged at the same axial height or in the same axial position to one another on the plug-in rotary section.
  • a start and an end of the clamping ramps are preferably arranged at the same axial height to one another.
  • the two clamping ramps have identical slopes.
  • the two clamping ramps are particularly preferably designed to be identical to one another.
  • the gradient of the at least one clamping ramp is preferably selected such that self-locking results in the area of the at least one clamping ramp in the plug-and-turn mechanism.
  • the gradient of the at least one tensioning ramp is preferably approximately 15 °, preferably 15 °, in particular when steel is paired with steel.
  • Each of the two clamping ramps is preferably set up to interact with a clamping projection of the tool counterpart, this preferably correspondingly having two clamping projections.
  • the at least one tensioning ramp preferably each of the tensioning ramps, extends preferably by at least 90 ° to at most 180 °, preferably at least 95 ° to at most 120 °, around the longitudinal axis on the plug-in-turn section / he stretch.
  • the at least one tensioning ramp extends preferably by at least 90 ° to at most 180 °, preferably at least 95 ° to at most 120 °, around the longitudinal axis on the plug-in-turn section / he stretch.
  • the plug-in-turn section has at least one insertion surface which is designed to interact with a counter-inserting surface of the tool counterpart to allow the tool part to be inserted into the tool counterpart only in at least one specific angular position around the longitudinal axis to enable.
  • the insertion surfaces in cooperation with the insertion mating surfaces, define a joining position for connecting the tool part to the tool mating part. They particularly preferably allow the tool part to be inserted into the tool counterpart in at most one specific angular position, or in at most two, in particular equivalent, angular positions offset from one another by 180 °.
  • the plug-in-turn section preferably has two insertion surfaces which are set up accordingly to interact with two counter-insertion surfaces of the tool counterpart.
  • the two insertion surfaces are preferably at least substantially parallel to one another, preferably oriented parallel to one another, and / or arranged or formed opposite one another transversely to the longitudinal direction on the plug-in rotary section.
  • the at least one insertion surface is preferably designed as a flat surface.
  • the at least one insertion surface preferably encloses an angle with the longitudinal axis which deviates only slightly from 0 ° at most, the angle in particular at most 5 °, preferably at most 4 °, preferably at most 2 °, preferably at most 1 °, preferably at most 0, 5 °.
  • the angle is particularly preferably 0 °, that is to say the longitudinal direction lies in the insertion surface, or the insertion surface extends along the longitudinal direction.
  • the at least one insertion counter surface of the tool counterpart is preferably designed to be correspondingly complementary to the at least one insertion surface.
  • the plug-in-turn section adjoins the centering section in the axial direction.
  • a functional separation between the centering section on the one hand and the plug-in rotary section on the other hand is accordingly provided in particular.
  • the plug-in-turn section is preferably designed as a clamping extension of the tool part, which extends in particular from the centering section in the axial direction - in the assembled state in the direction of the tool counterpart.
  • the centering section has an outer cone or is designed as an outer cone, in particular as a conical projection, in particular as a short cone. This allows a particularly good centering of the tool part on the tool counterpart, in particular when the outer cone formed centering section cooperates with a counter-centering section of the tool counterpart designed as an inner cone.
  • the axial stop is preferably designed as an axial annular surface, in particular as an annular surface whose normal vector points at least essentially in the longitudinal direction, preferably precisely in the longitudinal direction, or at most a small angle, at most of a few degrees, in particular at most 5 °, preferably at most 4 ° , preferably at most 3 °, preferably at most 2 °, preferably at most 1 °, preferably at most 0.5 °, with the longitudinal direction.
  • the axial annular surface preferably encompasses the centering section, in particular in an annular manner, in particular along a closed circumferential line.
  • centering section and the axial stop are preferably designed together as a short taper interface with a flat contact, in particular as in the embodiment shown in DE 100 48 910 A1.
  • the tool part has a machining section with at least one cutting edge.
  • the tool part is advantageously designed as a tool head, in particular as an interchangeable head.
  • the at least one cutting edge is preferably a geometrically defined cutting edge.
  • the at least one cutting edge can be provided in one piece, in particular made of one material, or in several parts, in particular as an inserted, glued or soldered cutting edge, or as an interchangeable cutting edge, on the tool part.
  • the tool part can be designed as a milling head, preferably made of solid carbide, or as a milling head with a soldered cutting edge, or as a drill, boring or reaming tool.
  • the machining section is preferably arranged axially on the Zentrierab then the plug-in-turn section opposite.
  • the processing section is arranged on a distal end of the tool part, which is intended to face a workpiece, the plug-in-turn section being arranged at a proximal end of the tool part, which is intended to be remote from a workpiece.
  • the centering section and the axial stop are arranged between the distal end and the proximal end.
  • Driving elements in particular wrench surfaces, are preferably formed on the tool part, which serve to engage a clamping means by means of which the tool part and the tool counterpart can be clamped together.
  • the key surfaces can in particular be set up in such a way that an open-end wrench can grip them.
  • a tool counterpart is created which is designed to be connected to a tool part, in particular to a tool part according to the invention or a tool part according to one of the exemplary embodiments described above.
  • the tool counterpart has a centering counterpart section and an axial counterstop, as well as a plug-in-turn counterpart that is set up to interact with the plug-in-turn section of the tool part in order to connect the tool counterpart to the tool part.
  • the tool counterpart is particularly preferably designed with respect to at least one feature, as was already explicitly or implicitly explained above in connection with the tool part.
  • the plug-in-turn counter-section is designed and coordinated with the plug-in-turn section in such a way that the axial movement resulting from the rotational movement following the plug-in movement takes place in the same direction as the previous plug-in movement.
  • the tool part is particularly drawn against the tool counterpart.
  • the tool part is displaced in the direction of the tool counterpart.
  • the plug-in-turn counter section has at least one clamping projection, preferably a clamping cam.
  • the at least one clamping projection is designed to interact with the at least one clamping ramp of the tool part, in particular in such a way that the tool part is displaced in the direction of the tool counterpart, in particular is pushed in the axial direction against the tool counterpart, in particular is clamped with the tool counterpart when a relative rotation - by the Longitudinal axis - is effected between the tool part and the tool counterpart, in particular between the at least one clamping ramp and the at least one clamping projection, in particular such that the at least one clamping projection runs off the at least one clamping ramp.
  • the Steck-Dreh-Gegenab section preferably has two clamping projections, each clamping projection is preferably set up to interact with one of the two clamping ramps that the Steck-Dreh- From section of the tool part preferably has.
  • the two clamping projections are preferably arranged diametrically opposite one another on the tool counterpart.
  • the two clamping projections are preferably arranged at the same axial height on the tool counterpart. As already explained, this has the advantage that no tilting moment is introduced into the tool part relative to the tool counterpart when the tool part is clamped to the tool counterpart.
  • the centering mating section has an inner cone which is particularly designed and coordinated to interact with the outer cone of the centering section of the tool part in order to center the tool part relative to the tool mating part.
  • the counter-centering section is accordingly designed in particular as a conical or conical section-shaped recess into which the centering section of the tool part, designed as a conical projection or conical extension, can be inserted.
  • the centering mating section designed as an inner cone is preferably more elastic, that is to say elastically deformable, than the centering section designed as an outer cone, so that the inner cone of the centering mating section is deformed, in particular widened, by the outer cone of the centering section when the tool part is clamped to the tool mating part.
  • an overdetermination is achieved in particular, so that the tool part is fixed very firmly, stably and in a position-safe manner relative to the tool counterpart.
  • the axial counter-stop is preferably designed as an axial ring counter-surface, i.e. as an annular surface whose normal vector is preferably oriented parallel to the longitudinal direction, or at most a small angle, at most of a few degrees, in particular at most 5 °, preferably at most 4 °, preferably at most 3 °, preferably at most 2 °, preferably at most 1 °, preferably at most 0.5 °, with the longitudinal direction.
  • the axial counter surface of the ring surrounds the inner cone of the counter-centering section, in particular in an annular manner, in particular along a closed circumferential line.
  • the axial ring surface of the axial stop preferably strikes the axial ring counter-surface of the axial counter-stop, in particular these surfaces preferably lie against one another over their entire surface. In particular in this way the overdetermination already described in connection with the widening of the inner cone of the counter-centering section is achieved.
  • the tool counterpart has a shank section or a clamping section, wherein the shank or clamping section is preferably set up to connect the tool counterpart to a machine tool, in particular to a spindle of a machine tool.
  • the shank section of the tool counterpart preferably has a hollow shank cone interface, in particular for connection to a spindle of a machine tool.
  • the tool part has a machining section with at least one cutting edge, with the tool counterpart at the same time having the shank or clamping section.
  • a tool is created which has at least one tool part according to the invention or at least one tool part according to one of the exemplary embodiments described above, as well as at least one tool counterpart according to the invention or at least one tool counterpart according to one of the previously described exemplary embodiments, which preferably together connectable, in particular connected to one another.
  • the tool has in particular an interface or connection point which is formed by the tool part and the tool counterpart and is formed in particular in the connection area between the tool part and the tool counterpart.
  • FIG. 1 shows an illustration of an exemplary embodiment of a tool part
  • FIG. 2 shows an illustration of an exemplary embodiment of a tool counterpart
  • FIG. 3 shows a detailed representation of the tool counterpart according to FIG. 2
  • FIG. 4 shows the tool part according to FIG. 1 in the state connected to the tool harrow according to FIG.
  • FIG. 1 shows a schematic representation of an exemplary embodiment of a tool part 1 which is set up for connection to an exemplary embodiment of a tool counterpart 3 shown in FIG. 2.
  • the tool part 1 has a centering section 5 and an axial stop 7.
  • the tool part 1 has a plug-in-turn section 9 which is set up to interact with a plug-in-turn counter section 11 of the tool counterpart 3, again shown in FIG. 2, in order to connect the tool part 1 to the tool counterpart 3.
  • the plug-turning section 9 and the plug-turning counterpart section 11 together form, in particular, a plug-turning mechanism, preferably a bayonet lock.
  • the tool part 1 is connected to the tool counterpart 3 by first performing an insertion movement in the direction of a longitudinal axis L, that is, in the axial direction, and then a rotary movement follows in which the tool part 1 is rotated relative to the tool counterpart 3, whereby a fixation of the tool part 1 on the tool counterpart 3 is achieved.
  • the plug-in path is longer, preferably much longer, than an axial displacement path along the longitudinal direction L, also referred to as the axial rotary path, from the first start of a rotary movement of the plug-in-rotary mechanism during the rotary movement to the axial stop of the tool part 1 on the tool counterpart 3 and thus to the end of the fixation of the tool part 1 on the tool counterpart 3 is covered.
  • the plug-in rotary section 9 preferably has at least one tensioning ramp 13, here two tensioning ramps 13, running along a screw section line - around the longitudinal axis L.
  • the two clamping ramps 13 are preferably arranged in an identical axial position, with their starting and end points in particular each being arranged at the same axial height - viewed in the direction of the longitudinal axis L.
  • the two clamping ramps 13 are preferably arranged diametrically opposite one another, in particular offset from one another in the circumferential direction by approximately 180 °, preferably by 180 °.
  • the clamping ramps 13 preferably each extend by at least 90 ° to at most 180 °, preferably by at least 95 ° to at most 120 °, in the circumferential direction around the longitudinal axis L.
  • the plug-in-turn section 9 preferably adjoins the centering section 5 in the axial direction, that is to say in the direction of the longitudinal axis L.
  • the plug-in-turn section 9 is preferably designed as a clamping extension.
  • the plug-and-turn section 9 preferably has at least one insertion surface 15 which is designed to interact with an insertion counter surface 17 of the tool counterpart 3 - see FIG. 2 - in order to enable the tool part 1 to be inserted into the
  • Two such insertion surfaces 15 are preferably provided, only one of the insertion surfaces 15 facing the viewer in FIG. 1 and therefore being shown.
  • the other insertion surface 15 is preferably formed or arranged diametrically opposite on the plug-in-turn section 9 so that it is hidden from the viewer.
  • the tool counterpart 3 also preferably has two insertion counter surfaces 17.
  • the centering section 5 is preferably designed as an outer cone 19.
  • the axial stop 7 is preferably designed as an axial annular surface 21 which surrounds the centering section 5 along a closed circumferential line.
  • the centering section 5 is designed here in particular as a short cone.
  • the axial stop 7 is designed in particular as a flat surface.
  • the tool part 1 preferably has a machining section 23, which in turn preferably has at least one cutting edge 25, in particular at least one geometrically defined cutting edge 25, preferably a plurality of geometrically defined cutting edges 25.
  • the processing section 23 is here - next to the Zentrierab section 5 - opposite the plug-turning section 9, so that the centering section 5 - seen along the longitudinal axis L - is arranged between the processing section 23 and the plug-turning section 9 .
  • the tool part 1 is designed here in particular as a machining head, particularly preferably as a milling head.
  • the cutting edge 25 can be designed as a soldered-in cutting edge, an inserted cutting edge, or else in one piece and, in particular, of the same material as the processing section 23.
  • the tool part 1 can also be designed as a drill, boring or reaming tool, or in some other suitable manner.
  • the tool counterpart 3 according to FIG. 2 is shown partially cut in the area of its connection point to the tool part 1.
  • the tool counterpart 3 has, in particular, a centering counterpart section 27 which is set up to interact with the centering section 5, as well as an axial counterstop 29 which is set up to interact with the axial stop 7.
  • the tool counterpart 3 has the plug-in-turn Jacobson Jacobson Equation 11 on.
  • This has at least one clamping projection 31 which is set up to interact with the at least one clamping ramp 13 in such a way that the tool part 1 is pushed against the tool counterpart 3, in particular drawn into the tool counterpart 3 and ultimately clamped to the tool counterpart 3 when the tool part 1 is rotated relative to the tool counterpart 3, in particular when the at least one clamping projection 31 runs off the at least one clamping ramp 13.
  • two clamping projections 31 are provided, which are in particular diametrically opposite one another.
  • the counter-centering section 27 is preferably designed as an inner cone 33, which is preferably more elastic than the outer cone 19, so that the inner cone 33, in particular a wall of the inner cone 33, is at least partially expanded when the outer cone 19 is inserted into the Inner cone 33 is drawn in.
  • the axial counter-stop 29 is designed here, in particular, as an axial annular counter-surface 35, which in particular engages around the inner cone 33 along a closed circumferential line.
  • the axial ring surface 21 is preferably in full contact and firmly against the axial ring counter surface 35.
  • the outer cone 19 and the inner cone 33 together bring about a radial positioning of the tool part 1 relative to the tool counterpart 3, the axial ring surface 21 in interaction with the axial ring counter surface 35 defining an axial relative position between the tool part 1 and the tool counterpart 3 when they are together are tense.
  • the tool counterpart 3 also has a shaft section 37 which is set up for connection to a machine tool, in particular to a spindle of a machine tool.
  • the shaft section 37 preferably has a hollow shaft cone 39.
  • FIG. 3 shows a detailed representation of the tool counterpart 3 according to FIG. 2.
  • one of the clamping projections 31 can be seen particularly well, as well as one of the insertion counter surfaces 17, and also the inner cone 33 and the annular counter surface 35.
  • FIG. 4 shows a detailed representation of a tool 41 which has the tool part 1 and the tool counterpart 3 in a connected state, the tool 41 preferably consisting of the tool part 1 and the tool counterpart 3.
  • the plug-in-turn section 9 is first introduced axially into the plug-in-turn counter section 11.
  • the insertion surfaces 15, in interaction with the counter-insertion surfaces 17, define an angular position about the longitudinal axis L for axial insertion or insertion.
  • the tool part 1 is rotated relative to the tool counterpart 3 preferably by approximately 90 °, preferably slightly more than 90 °, in the clamping direction, the clamping projections 31 running on the clamping ramps 13 - or vice versa - , and wherein the tool part 1, in particular the outer cone 19, is drawn deeper into the tool counterpart 3, in particular into the inner cone 33, in particular until the ring surface 21 strikes the ring counter surface 35.
  • the inner cone 33 is preferably widened at least in some areas, in particular slightly, so that in the The result is an overdetermination and thus a highly precise and stable fixing of the tool part 1 on the tool counterpart 3 is achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Jigs For Machine Tools (AREA)
  • Gripping On Spindles (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Scissors And Nippers (AREA)

Abstract

L'invention concerne une pièce (1) d'outil qui est conçue pour se raccorder à une contre-pièce (3) d'outil, la pièce (1) d'outil étant dotée d'une section (5) de centrage et d'une butée axiale (7), et la pièce (1) d'outil étant dotée d'une section (9) d'insertion-pivotement qui est conçue pour coopérer avec une contre-section (11) d'insertion-pivotement de la contre-pièce (3) d'outil afin de lier la pièce (1) d'outil à la contre-pièce (3) d'outil.
EP20837952.9A 2019-12-18 2020-12-16 Pièce d'outil destinée à se raccorder à une contre-pièce d'outil, contre-pièce d'outil destinée à se raccorder à une pièce d'outil, et outil Pending EP4076811A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019220092.3A DE102019220092A1 (de) 2019-12-18 2019-12-18 Werkzeugteil zur Verbindung mit einem Werkzeuggegenstück, Werkzeuggegenstück zur Verbindung mit einem Werkzeugteil, und Werkzeug
PCT/EP2020/086529 WO2021122821A1 (fr) 2019-12-18 2020-12-16 Pièce d'outil destinée à se raccorder à une contre-pièce d'outil, contre-pièce d'outil destinée à se raccorder à une pièce d'outil, et outil

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EP (1) EP4076811A1 (fr)
JP (1) JP2023508864A (fr)
CN (1) CN114829048A (fr)
BR (1) BR112022010747A2 (fr)
CA (1) CA3160058A1 (fr)
DE (1) DE102019220092A1 (fr)
MX (1) MX2022007533A (fr)
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DE102021123551A1 (de) 2021-09-10 2023-03-16 Stuckenbrock Medizintechnik Gmbh Werkzeugschnellwechselset für medizinische, handgehaltene Werkzeugmaschine

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USRE26452E (en) * 1964-10-20 1968-09-10 Gun drill
IL125766A (en) * 1998-08-13 2002-12-01 Iscar Ltd The barrel of a tool and a rotating cutting head for placing on it in the form of a self-lining
WO2001008840A1 (fr) * 1999-08-03 2001-02-08 Kennametal Inc. Foret a tete de coupe remplaçable
DE10048910A1 (de) * 2000-10-02 2002-05-02 Mapal Fab Praezision Verbindungsstelle
DE10112966A1 (de) * 2001-03-14 2002-10-02 Mapal Fab Praezision Verbindungsstelle
DE10237772A1 (de) * 2002-08-17 2004-03-11 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Werkzeug zur spanenden Bearbeitung
DE10326928B4 (de) * 2003-06-16 2009-07-02 MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG Schnittstelle zwischen zwei Teilelementen eines Werkzeugsystems
DE102009034202B3 (de) * 2009-07-16 2010-09-23 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Zweiteiliges Werkzeug für spanende Bearbeitung mit Schraubkupplung
IL203798A (en) * 2010-02-08 2013-03-24 Iscar Ltd Clamping mechanism
DE102011012144B4 (de) * 2011-02-24 2015-04-23 Kennametal Inc. Werkzeughalter sowie Werkzeugsystem mit einem Werkzeughalter und einem Werkzeug
CH707765A2 (de) * 2013-03-11 2014-09-15 Gewitec Ag Bearbeitbarer Rohling für die Herstellung eines rotierenden oder stehenden Werkzeugs.
AT15846U1 (de) * 2017-03-14 2018-07-15 Ceratizit Austria Gmbh Schneidwerkzeug für die rotatorische Bearbeitung eines Werkstücks

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CN114829048A (zh) 2022-07-29
CA3160058A1 (fr) 2021-06-24
JP2023508864A (ja) 2023-03-06
MX2022007533A (es) 2022-07-19
DE102019220092A1 (de) 2021-06-24
US20230011164A1 (en) 2023-01-12
BR112022010747A2 (pt) 2022-08-23
WO2021122821A1 (fr) 2021-06-24

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