WO1991008072A2 - Systeme de serrage permettant de relier des pieces de façon a eviter leur rotation ou leur deplacement cyclique - Google Patents

Systeme de serrage permettant de relier des pieces de façon a eviter leur rotation ou leur deplacement cyclique Download PDF

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Publication number
WO1991008072A2
WO1991008072A2 PCT/DE1990/000898 DE9000898W WO9108072A2 WO 1991008072 A2 WO1991008072 A2 WO 1991008072A2 DE 9000898 W DE9000898 W DE 9000898W WO 9108072 A2 WO9108072 A2 WO 9108072A2
Authority
WO
WIPO (PCT)
Prior art keywords
tool
extension
clamping
conical
clamping system
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.)
Ceased
Application number
PCT/DE1990/000898
Other languages
German (de)
English (en)
Other versions
WO1991008072A3 (fr
Inventor
Felix Leeb
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19893939423 external-priority patent/DE3939423A1/de
Priority claimed from DE19904014381 external-priority patent/DE4014381A1/de
Application filed by Individual filed Critical Individual
Publication of WO1991008072A2 publication Critical patent/WO1991008072A2/fr
Publication of WO1991008072A3 publication Critical patent/WO1991008072A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/04—Adapters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/022—Balls

Definitions

  • Clamping system for connecting parts, especially tool parts, in a rotationally and concentrically safe manner
  • a clamping system is desirable which, on the one hand, meets all requirements and, on the other hand, enables the parts to be connected quickly without losing individual parts and without the clamping system requires a special manufacturing effort.
  • Such a connection of parts very often occurs, for example, but by no means exclusively when connecting parts of multi-part driven tools to one another or with their clamps in a rotationally and concentrically secure manner.
  • a multi-part tool can consist, for example, of a face milling cutter which produces a core hole and a cutting ring which can be connected to this for producing internal threads.
  • Clamping systems consisting of a conical section of the tool shank and an inner cone on an associated tool part or a tool holder are known per se for tools, in particular drilling tools, but these known clamping systems have the disadvantage that the clamping system does not have any tensile forces can be transmitted so that these known clamping systems cannot be used on their own where axial tensile forces occur during tool operation, such as in milling cutters. In such cases, the tool or its extension must be additionally fastened
  • REPLACEMENT LEAF are what is usually done by means of a pull-in screw that is coaxially aligned with the tool and can be inserted from behind and is therefore associated with additional work.
  • additional work also occurs in other known systems, such as, for example, the system for tensioning taper shanks known from DE-GM 76 09 688, in which the tensioning means is formed by a screw cross wedge to be used and tightened.
  • With simple tools such as drills or their extensions cone can sit be sufficient as clamping system, in most cases, but it is a erflache Mitrieh be required to provide a safe rotational drive to reach the tool.
  • the known clamping or clamping systems are unsatisfactory not only because of the additional work or time required for this, but also because of the fact that they have to be constructed in several parts and therefore also contain lost individual parts.
  • the object of the invention is to create a clamping system which can be produced at low cost and which can be handled with the least possible work, in particular a clamping system which can be used as a tool clamping system and which, while ensuring the rotary drive and concentricity of the tool required for tool drives, also for transmitting axial Forces is suitable. Furthermore, a design that is adaptable with the least possible workload of the respective work task, for example the production of counterbored holes, is to be created, which permits " uniform work with a drilling machine and within certain limits also means and ways for the easiest possible representation or handling and to provide absolutely reliable tool retrofitting with regard to the secure setting of the required rotary drive and concentricity of a tool. Furthermore, the clamping system as a whole should have the lowest possible weight in order to improve the effect of impact drilling machines at the same time.
  • the tool can be locked in a rotationally and concentrically secure manner by means of a bayonet locking mechanism via its conical tool shaft in a correspondingly conical receiving recess by means of a bayonet locking mechanism
  • the bayonet locking mechanism comprising at least one for the most part part consists of its circumference out in an internal recess of the inner cone, in particular a tool extension, sincenom ⁇ menen ball and on the outer circumference of the correspondingly conically constructed, 'to be clamped part, in particular the Werk ⁇ generating shaft arranged obliquely, in particular schraubenlinien- shaped rising circumferential groove, and wherein the ball engages in the circumferential groove almost without play.
  • the ball (s) forming part of the bayonet lock are accommodated for the most part of their circumference in the inner recess of the tool extension
  • REPLACEMENT LEAF and the circumferential groove arranged on the outer circumference of the milling cutter is designed to rise in the shape of a screw line in such a way that a kind of helical gear is created by the rotary movement of the tool drive.
  • the tool shank optionally has a further region which tapers conically towards its free end and that a cutting ring projecting radially from a face milling cutter diameter can be placed on the tool shank as a threading device with an inner bore corresponding to the milling shank , in order to produce a rotationally secure connection between the tool shank and the cutting ring, it is further provided that the tool sheep and the cutting ring have a cross-sectional shape that deviates from the pure circular shape, such that they engage in one another in a rotationally secure manner by means of mutually arranged axial lugs and recesses.
  • the recess in the cutting ring associated with the axially directed, polygonal, in particular square cross-sectional shape has a larger cross section in the cutting ring and is in particular dimensioned such that the cross section the recess in the cutting ring prevents the axial projection on the tool shaft engaging in the recess from turning, so that during operation of the tool equipped with the cutting ring a mutual wedging between the cutting ring and the tool shaft is achieved, each any play or tolerance-related play between the mutual engagement means is automatically and reliably eliminated.
  • the invention further provides that at least when the cutting edge is placed on the tool sheep
  • REPLACEMENT LEAF a resiliently elastic ring is inserted between the adjacent end faces of the tool extension and the cutting ring, which ring can be formed in detail either by a ring made of resilient plastic or rubber material or by a metal spring, in particular a plate spring.
  • the desired preload of the resiliently elastic ring during operation of the tool is reinforced by the design of the bayonet lock, which generates an axially directed clamping force as a result of the helical slope of the circumferential grooves in the milling shank.
  • a plurality of radial groove recesses are arranged in the tool shaft and associated balls, which are partially accommodated in recesses of the tool extension, distributed over the outer circumference of the tool shaft and the inner circumference of the tool extension.
  • the radial groove recesses in the tool shank being arranged parallel to one another.
  • the bayonet lock In order to reduce the local surface load of the bayonet lock, provision can furthermore also be made for the bayonet lock to be provided by at least one radial one, which is partially received in a recess in the tool extension and is arranged in an inclined manner in the axial direction or as a helix in the outer circumference of the tool shaft Bolt engaging circumferential groove is formed.
  • a particular relief in the handling of the tool or the parts of the tool when inserting and loosening results from the fact that on the conically shaped mutual contact surfaces, e.g. a lubricant is applied to the milling shank and / or the milling cutter extension, and almost all parts have a width across flats.
  • the required number of tool holders of a machine can be achieved
  • the bayonet lock can also be used in other machines equipped with tools to be clamped, for example drilling machines, with the advantage of simplifying the equipment and handling.
  • the use of the bayonet lock according to the invention enables not only the replacement of the usual drill chucks and milling chucks, but also the use of milling cutters on drilling machines, since on the one hand it enables clamping of tools of all sizes with absolute rotation and concentricity, and on the other hand it can support an axial pull on the tool.
  • the application of the inventive concept due to the safe operation of the bayonet lock, can also apply to the clamping of non-rotary drives Tools such as pushing or pushing tools.
  • the application of the inventive concept can also extend to hose or line couplings as a result of the axially lock-out mode of action of the bayonet lock, where necessary all non-rotationally driven connections additionally with a tensioning device or rotation lock, in particular in the form of with corresponding surfaces interacting support screws and can also be equipped with seals.
  • the invention also provides here, for example, the connection of tool parts, that the clamping of the cutting tools via cones and conical fitting threads or cones with a bayonet lock and that here, regardless of the respective axial length of the cutting tool, cutting tool and tool extensions, together always have an at least approximately constant overall length.
  • this embodiment of the invention requires a corresponding length of the tool shank for each given tool length, so that a large number of tool shanks corresponding to the existing number of tool lengths must be stored, selected and used.
  • the tool shank is formed in several parts.
  • the tool shank is particularly advantageously formed in two parts and consists of a conical clamping part and an extension part connectable to this.
  • the cutting tool, the extension part and the clamping part can be connected to one another via conically shaped, mutually arranged end regions and end region recesses, the extension part having an axial conical recess on its end face associated with the connection of the cutting tool and on its clamping part associated end has a conically shaped end region.
  • the extensions in particular in the case of hand drills, can be accommodated via a bayonet lock on a receiving sleeve connected to the working spindle of the machine tool instead of a conventional drill chuck via an internal thread or internal or external cone, and on the other hand , in particular in the case of upright drilling machines which are connected to the work spindle of the machine tool by means of a bayonet lock and equipped with appropriate receiving sleeves.
  • connection between the tool and the receptacle should be in the manner of a conical fitting thread
  • ERSA T Z B LATT be designed to avoid the disadvantage of the more complex manufacture of a bayonet lock, particularly in the case of tools of smaller diameter.
  • the production is technically difficult and complex.
  • the conical outer surfaces of the conical end region of the cutting tool and the conical end region recess of the extension or the conical clamping part and the clamping sleeve are subdivided into a helically increasing surface by a spiral-shaped circumferential groove recess and likewise a spiral-increasing circumferential web, the circumferential groove on the one hand and the circumferential web rib on the other hand having non-congruent triangular cross-sectional shapes.
  • the cross-sectional shapes of the grooves and the web ribs are designed so that they enclose a gap-shaped free space between them when the tool or the extension is clamped in with their flank surfaces facing away from the working direction of the tool.
  • the grooves and web ribs can have an acute-angled triangular cross-sectional shape with a radius or a chamfer, but can also have a different shape for the purpose of a conical screw connection.
  • flank surfaces of the grooves and web ribs facing the working direction of the cutting tool become effective only when the tool or tool shaft is being clamped or extended in the sense of a feed screw, while the flanges facing away from the working direction of the cutting tool ken vom act only when releasing the clamping and in the opposite direction as an extension screw.
  • the tool is clamped, it is only held in the respective receptacle via the remaining parts of the conical surface, only axial tightening forces that occur, for example when milling, will be additionally safe from the thread flanks acting in the pulling direction supported.
  • the torsional forces that occur during work are mainly supported via the worm-like thread flanks and in connection with the cone seat in a totally non-rotatable manner.
  • tapered fitting threads can be produced more easily by rolling, only a small thread depth is provided, and in a further embodiment it can also be provided that in the case of web ribs or grooves produced by rolling, each has at least one of the flank surfaces of the groove or web rib to create a depression or a free space for the material displaced by the rolling from the counterpart.
  • the cutting tool especially for smaller tool diameter, made of hard or hardened material can be provided according to another feature of the invention that only the tool is equipped with a conical fitting thread and the exception associated with the cutting tool made of softer material only has a corresponding smooth-surface cone recess, such that when the first cutting tool is inserted, the conical receptacle, which consists of a less hard material, is automatically provided with a profile.
  • the invention further provides that a wrench size is formed on at least one of two parts to be connected, cutting tool and extension part or extension part and clamping part, and a lubricant is applied in particular between the clamping surfaces.
  • the clamping part has a groove recess in its conically shaped clamping area for receiving a ball of a bayonet lock arranged in the correspondingly designed clamping sleeve of a machine tool, in particular a drilling machine .
  • the cutting tool is received directly in the receiving sleeve directly via cones in order to achieve a further reduction in weight, as a result of which the impact force is increased again.
  • ⁇ SAT Problems associated with the drilling tool are largely excluded, and it should also be provided that a predetermined breaking point, in particular a shear groove, is arranged in the shank of the cutting tool between its working part and its clamping part, in such a way that the drill is in any case not located within the borehole Point breaks and is therefore easier and easier to remove from the borehole with simple means.
  • a predetermined breaking point in particular a shear groove
  • FIG. 1 shows a longitudinal section through a tool for producing threaded bores in the full material in a tool holder equipped with a concentricity adjustment facility
  • Figure 2 is a plan view of the tool of Figure 1;
  • FIG. 3 shows a partial longitudinal section through a bayonet lock
  • FIG. 5 is a partial side view of the bayonet lock of Figures 3 and 4;
  • FIG. 6 shows a section through a further design form of a bayonet locking device
  • FIG. 7 shows a cross-sectional illustration of the bayonet lock according to FIG. 6;
  • FIG. 8 shows a detail of a bayonet lock on a type of reducing sleeve with a tensioning slot running in two directions.
  • FIG. 9 shows a two-part tool shank inserted into a clamping sleeve with countersink inserted therein;
  • FIG. 10 shows a two-line tool shank inserted into a clamping sleeve with milling cutters inserted therein;
  • FIG. 11 shows a two-part tool shank inserted into a clamping sleeve with a smaller diameter drill inserted therein;
  • FIG. 12 shows a two-part tool shank with long drills of larger diameter inserted therein
  • FIG. 13 shows a large diameter long drill bit inserted into a receiving sleeve by means of a bayonet lock
  • FIG. 14 shows a drill with a smaller diameter received via a multi-part tool shank
  • FIG. 15 a countersink for larger diameters received via a multi-part tool sheep
  • FIG. 16 a long carbide drill bit and holder in a clamping sleeve ⁇
  • FIG. 17 shows a variant of the clamping for a rock drill in a conventional impact-resistant quick-action chuck
  • FIG. 18 another variant of the clamping for a rock drill in a receiving sleeve
  • FIG. 19 a further variant of the clamping for a rock drill clamped directly in the receptacle and receiving sleeve with an inner cone;
  • FIG. 20 shows a further variant of the clamping for a rock drill and receiving sleeve with an inner cone
  • FIG. 21 shows a further variant of the arrangement for clamping a stone drill and receiving sleeve with an inner cone
  • FIG. 22 shows the connection between the tool and the clamping sleeve on an enlarged scale or a connection of larger tools
  • FIG. 23 shows another embodiment of the connection between the tool and the clamping sleeve, also on an enlarged scale or a connection of larger tools.
  • a basic holder 5 is clamped in a milling cutter holder 4, which is provided with a concentricity adjustment device formed by inclined screw bolts i and support surfaces 3 arranged on a tool holder 2.
  • a milling cutter extension 6 is clamped in the basic holder 5, in which a face milling cutter 7 is clamped in turn.
  • the face milling cutter 7 has a milling cutter head 8 and a milling cutter shaft 9 and is free of play in a correspondingly conical slot over the milling cutter shaft 9 which tapers conically towards its free end Receiving recess 10 of the cutter extension 6 added.
  • the milling head is equipped on its working side with flank cutting edges 11 and cutting edges 12 and 13, with a number of cutting edges 12 being designed as V-cutting edges and a corresponding number of cutting edges 13 as simple cutting edges, and with simple cutting edges 13 and V-cutting edges 12 in the circumferential direction are arranged alternately in succession, as can be seen in particular from the illustration in FIG.
  • a threading device formed by an annular body 15 equipped with a cutting ring 14, with radially oriented threading teeth is placed on the cutter shaft 9.
  • the ring body 15 has an inner surface 16 which is conical to the taper of the cutter shank 9.
  • the ring body 15 is provided on its lower string side with an axial recess 17, which has a square profile cross section and into which an axial extension 18 arranged on the rear side of the cutter head 8 engages, the axial extension 18 for Forming a wrench size also has a square profile cross-section, and the clear width of the axial recess 17 in the annular body 15 is greater by an amount than the profile cross-section of the axial extension 18 on the milling cutter head 8 that the latter just barely touches one Slipping in the recess 17 is prevented.
  • the milling cutter head 8 is in the area of its provided at the top with an inwardly inclined circumferential bevel 19.
  • a ring 20 made of a resiliently elastic material is arranged between the lower end face of the milling cutter extension 6 and the upper end face of the ring body 15.
  • the ring body 15 is also provided with a wrench size 21, just as the milling cutter extension 6 is provided with a wrench size 22 on its outer circumference.
  • A is provided with an axial recess 23 penetrating its shaft 9 and its head 8, to which corresponding axial bore recesses 24, 25 and 26 in the milling cutter extension 6, in the basic holder 5 and in the tool holder 4 are aligned.
  • the bayonet lock consists of a ball 27, which is accommodated in the wall of the milling cutter extension 6 over the major part, approximately 60% of its circumference, and a ball 27 arranged in the peripheral surface of the milling cutter shaft 9, starting from the milling cutter head 8, rising helically and at the top a circumferential groove 28 extending transversely to the milling cutter axis.
  • the face milling cutter 7 can be screwed into the milling cutter extension either by itself or together with the ring body 15 which carries the cutting ring 14 and locked therein, and locked at the same time.
  • the cutter shaft 9 is provided with a coating of lubricant and that both the cutter extension 6 and the cutter head 8 or the ring ⁇ body 15 are each provided with a wrench size 18 or 21 and 22.
  • the base holder 5 is equipped on the underside with countersink cutting edges 30 formed in the exemplary embodiment shown by turning plates 29.
  • the cutter extension 6, which is conically formed in its upper region 31, is received at least almost free of play in a conically shaped receiving bore 32 of the basic holder 5 and is locked by means of a bayonet lock, the bayonet locking two in the wall for the most part of its circumference of the basic holder 5 includes balls 33 and two grooves 34 arranged in the outer circumferential surface of the region 31 of the milling cutter extension 6 and rising upwards in a helical manner.
  • the basic holder 5 is locked in the tool holder 2 by means of three balls 37, which are received for the most part in their circumference in recesses in the wall 35 of the tool holder 2 and engage in circumferential grooves 36 of the basic holder 5, although the grooves 36 are arranged starting from the upper end of the basic holder 5.
  • a driven part 40 is received without play via a conically shaped end region 41 in a receiving recess 42 of a driving part 43 which is conical in shape and the bayonet lock is predominantly by a number of its own Balls 46 received in the wall 44 of the driving part 43 and engaging in associated grooves 45 in the driven part are formed.
  • the grooves 45 are arranged starting from the upper end of the driven part 40 in a straight line, running obliquely downward, and are provided at their lower end with a pocket 47 oriented transversely to the axis of the driven part.
  • the pocket 47 is oriented with respect to its longitudinal extent at an angle to the horizontal.
  • the driven part 40 can also be associated with a reverse rotation, which in the exemplary embodiment shown is arranged by a number of screws 48 and 43 arranged tangentially to the axis of the driven part 40 in the wall 44 of the driving part 43 this associated radial contact surfaces 49 is formed on the driven part 40.
  • a reverse rotation which in the exemplary embodiment shown is arranged by a number of screws 48 and 43 arranged tangentially to the axis of the driven part 40 in the wall 44 of the driving part 43 this associated radial contact surfaces 49 is formed on the driven part 40.
  • FIGS. 6 and 7 show yet another
  • REPLACEMENT LEAF Shown for a bayonet lock, in which bolts 50 are used instead of balls, which bear over correspondingly larger flank surfaces 51 with a correspondingly lower surface pressure on the recesses in the wall of the driving part and equally also in the groove recess of the driven part .
  • FIG. 8 shows a reducing sleeve 60 designed in the manner of a cut drill chuck, which has a radial groove recess 61 which extends from top to bottom and then has two end regions 62 and 63 of the groove recess 61 which extend in opposite directions and which Art that the clamping and, accordingly, the release can take place in one or the other direction of rotation.
  • the two end regions 62 and 63 of the radial groove recess are aligned at a flat angle to the horizontal.
  • the cutting tool is a drill, the cutting tool shown in FIG. 1 being a centering drill 1, which has an outer cone 2 on each side of a central section 111, such that the centering drill 1 can be used on both sides by turning.
  • the center drill 1 is received via its one outer cone in the inner cone 3 of an extension 4.
  • the extension 4 is in turn received in a clamping sleeve 5 via an outer cone 222 and an inner cone 333 and a bayonet lock 8, 9 in a rotationally and concentrically secure manner.
  • the clamping sleeve is provided with an internal thread 10, by means of which it can be connected to an output spindle of the drilling machine, which is not particularly shown in the drawing.
  • the cutting tool 1 which is designed as a milling cutter or a drill, is fixed in the extension 4 by a conical fitting thread 11, 12, while the extension 4 is fixed by a ball 8 and an insertion slot 9 formed Bajo ⁇ nice closure is fixed in the clamping sleeve 5.
  • the cutting tool 1 is the longest tool to be clamped and is fixed directly in the clamping sleeve 5 by means of the cones 2,5 and a bayonet lock 8,9.
  • the cutting tool 1 is received once by a conical fitting thread 11, 12 in a first extension 13, which in turn is fixed in a second extension 14 via a conical fitting thread 11, 12, the second extension 14 by means of a cone pair 2, 3 and a bayonet lock 8, 9 is accommodated in the clamping sleeve 5 and is secured against rotation and rotation.
  • the cutting tool 1 is received in a first extension 15 via a conical fitting thread 11, 12 in a rotationally and rotationally secure manner, while the extension 15 in a second extension 16 via a smooth surface cone pairing 222, 533 and a bayonet ⁇ nice locking 8, 9 is added.
  • the second extension 16 is in turn also received via a smooth-surface cone pairing 222, 335 and a bayonet locking device 8, 9 in the clamping sleeve 5 in a rotationally and rotationally secure manner.
  • the cutting tool 1 is designed as a rock drill and is extended exclusively via smooth-surface cones 222, 333 and these in the clamping sleeve 5 also smooth-surface cones 222, 353 and additionally via a bayonet lock 8, 9 concentric and rotationally fixed.
  • FIG. 9 shows a cutting tool 18 designed as a rock drill, which is clamped in by means of a quick-action chuck 17 that is usual for impact drills, the quick-action chuck being connected to the output spindle 19 of the hand drill 20 via an internal thread 10.
  • a rock drill 18 is received by means of an extension 4 in a clamping sleeve 5, the rock drill 18 in the extension 4 via smooth-surface cones 222, 335 and these
  • REPLACEMENT LEAF for its part is accommodated in the clamping sleeve 5 by means of smooth-surface cones 222, 333 and a bayonet lock 8.9 in a rotationally and rotationally secure manner.
  • the clamping sleeve 5 is in turn connected to the output spindle 19 of the hand drill 20 via an internal thread 10.
  • FIG. 18 shows a hand drill 20 whose output spindle 19 is provided with an external thread 21, to which an internal thread 10 of the clamping sleeve 5 is assigned.
  • the cutting tool 18, which is designed as a rock drill, is accommodated in the clamping sleeve 5 by means of a smooth cone pairing 222, 333 in a manner that it is true to rotation and secure against rotation.
  • FIG. 19 shows a hand drill 20, to the output spindle 19 of which a clamping sleeve 5 is connected by means of a smooth cone pairing 222, 333, in which the cutting tool designed as a rock drill 18 is in turn fixed via a further smooth cone pairing 222, 333 .
  • FIG. 20 shows an embodiment in which a drill sleeve 22 has a smooth inner cone 5 and a first extension 23 has a smooth outer cone 2, and drill sleeve 22 and the clamping sleeve 23 are additionally connected in a rotationally and concentric manner via a bayonet lock 8, 9 .
  • the cutting tool 1 is received in a second extension 4 by means of a fitting thread 11, 12, the second extension being received in the first extension 23 by means of a smooth cone pairing 222, 353 and a bayonet lock 8, 9.
  • the cutting tool 1 which is designed as a steel drill, is provided with a shear groove 24 which forms a predetermined breaking point. Furthermore, the two extensions are each provided with a key width 25.
  • FIGS. 21 ' and 22 show two embodiments of conical fitting threads, FIG. 22 showing an embodiment in which the conical outer surfaces of the conical end region 222 of the cutting tool 1 and the conical end region recess 353 of the extension 4 or of the receptacle a s groove-shaped circumferential groove recess
  • the Konusman ⁇ come tel vom 222 and 333 before and in the embodiment of Figure 22, but here is the spirally ascending circumferential NutauEnglishung 300 and the equally spiralen- förm 'ig rising circumferential rib 510 in the tightening direction sur fa ⁇ designed to be larger or flatter. It is also provided in both embodiments that the cross-sectional shapes of the grooves 30 or 300 and the web ribs 31 are respectively "310 such von ⁇ designed deviating each other that they direction in a clamped cutting tool 1 in the extension 4 with their the Hä ⁇ of the cutting tool Flank surfaces 35 facing away enclose a gap-shaped free space 36 between them.
  • the conical fitting threads described here can have all conceivable thread flanks and pitches, but in order to be able to maintain the mode of action of cone connections, the cone surfaces that are used must always have the entry. Set requirements adapted to be sufficiently large.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Gripping On Spindles (AREA)

Abstract

Un système de serrage permet de relier des pièces, notamment des parties d'outils (ou des outils en plusieurs parties), par exemple fraises en bout raccordées à des disques de filetage, de même que forets et similaire, de façon à éviter leur mise en rotation ou leur déplacement cyclique. La liaison entre une pièce, par exemple une partie d'outil, avec une autre pièce, par exemple un raccordement d'outil, est assurée par des cônes à verrouillage à baïonnette ou par des cônes filetés d'ajustement. L'outil de coupe et la tige de l'outil (ou extension de l'outil) présentent ensemble une longueur totale qui reste pratiquement inchangée indépendamment de la longueur axiale de l'outil de coupe. Le raccordement d'outil a une forme effilée et un poids réduit. Des outils de forage, notamment, sont pourvus d'un point destiné à la rupture.
PCT/DE1990/000898 1989-11-29 1990-11-20 Systeme de serrage permettant de relier des pieces de façon a eviter leur rotation ou leur deplacement cyclique Ceased WO1991008072A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEP3939423.9 1989-11-29
DE19893939423 DE3939423A1 (de) 1989-11-29 1989-11-29 Werkzeug zur wahlweisen herstellung von ausnehmungen, bohrungen oder gewindebohrungen im vollen material
DEP4014381.3 1990-05-04
DE19904014381 DE4014381A1 (de) 1989-11-29 1990-05-04 Werkzeug zur wahlweisen herstellung von ausnehmungen, bohrungen oder gewindebohrungen im vollen material

Publications (2)

Publication Number Publication Date
WO1991008072A2 true WO1991008072A2 (fr) 1991-06-13
WO1991008072A3 WO1991008072A3 (fr) 1991-09-05

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PCT/DE1990/000898 Ceased WO1991008072A2 (fr) 1989-11-29 1990-11-20 Systeme de serrage permettant de relier des pieces de façon a eviter leur rotation ou leur deplacement cyclique

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AU (1) AU6719990A (fr)
WO (1) WO1991008072A2 (fr)

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WO2010089405A1 (fr) * 2009-02-09 2010-08-12 Johne + Co. Präzisionswerkzeuge Gmbh Accouplement pour un outil rotatif
US20110233839A1 (en) * 2007-08-02 2011-09-29 Franz Haimer Maschinenbau Kg Quick change system
US20210170502A1 (en) * 2015-12-10 2021-06-10 Milwaukee Electric Tool Corporation Accessory tool
CN114700722A (zh) * 2022-04-22 2022-07-05 博世通(青岛)智能装备有限公司 一种拧紧轴自动换套筒装置
CN115041979A (zh) * 2022-07-25 2022-09-13 哈尔滨星瀚空天装备有限公司 一种用于数控加工中心的材料超声波换能器执行机构切割装置
CN117921416A (zh) * 2024-01-25 2024-04-26 沈阳航天新光集团有限公司 一种高精度哑铃状细长连杆车削夹具

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH214669A (de) * 1939-12-05 1941-05-15 Oerlikon Maschf Nach Art eines Bajonettverschlusses ausgebildete Verbindungseinrichtung zur Befestigung eines rundlaufenden Werkzeuges, insbesondere Fräsers, in einer Werkzeugspindel.
GB564600A (en) * 1943-03-31 1944-10-04 Joseph Andrew Jeavons Improvements in the mounting of end mills, reamers and the like in sockets or holders
DE920336C (de) * 1952-02-16 1954-11-18 Henschel & Sohn G M B H Fuer Fraeser und deren Futter dienende Einrenkeinrichtung
US2773693A (en) * 1954-05-20 1956-12-11 Windsor N Chittenden Positive shank-locking means for collet-held cutting tools
CH383119A (de) * 1960-03-29 1964-10-15 Dixi Sa Werkzeughalter, insbesondere für Horizontalbohrwerke
US4674172A (en) * 1985-12-20 1987-06-23 Botimer Donald W Tool coupling apparatus

Cited By (10)

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Publication number Priority date Publication date Assignee Title
US20110233839A1 (en) * 2007-08-02 2011-09-29 Franz Haimer Maschinenbau Kg Quick change system
US9180527B2 (en) * 2007-08-02 2015-11-10 Franz Haimer Maschinenbau Kg Quick change system
WO2010089405A1 (fr) * 2009-02-09 2010-08-12 Johne + Co. Präzisionswerkzeuge Gmbh Accouplement pour un outil rotatif
US20210170502A1 (en) * 2015-12-10 2021-06-10 Milwaukee Electric Tool Corporation Accessory tool
US12138694B2 (en) * 2015-12-10 2024-11-12 Milwaukee Electric Tool Corporation Accessory tool
CN114700722A (zh) * 2022-04-22 2022-07-05 博世通(青岛)智能装备有限公司 一种拧紧轴自动换套筒装置
CN114700722B (zh) * 2022-04-22 2023-08-22 博世通(青岛)智能装备有限公司 一种拧紧轴自动换套筒装置
CN115041979A (zh) * 2022-07-25 2022-09-13 哈尔滨星瀚空天装备有限公司 一种用于数控加工中心的材料超声波换能器执行机构切割装置
CN115041979B (zh) * 2022-07-25 2023-09-08 哈尔滨星瀚空天装备有限公司 一种用于数控加工中心的材料超声波换能器执行机构切割装置
CN117921416A (zh) * 2024-01-25 2024-04-26 沈阳航天新光集团有限公司 一种高精度哑铃状细长连杆车削夹具

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AU6719990A (en) 1991-06-26

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