EP0596892A1 - Mandrin avec pince de serrage - Google Patents

Mandrin avec pince de serrage

Info

Publication number
EP0596892A1
EP0596892A1 EP92910750A EP92910750A EP0596892A1 EP 0596892 A1 EP0596892 A1 EP 0596892A1 EP 92910750 A EP92910750 A EP 92910750A EP 92910750 A EP92910750 A EP 92910750A EP 0596892 A1 EP0596892 A1 EP 0596892A1
Authority
EP
European Patent Office
Prior art keywords
chuck
collet
clamping nut
guide sleeve
ring
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.)
Withdrawn
Application number
EP92910750A
Other languages
German (de)
English (en)
Inventor
Ulrich Fahrion
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.)
Eugen Fahrion GmbH and Co
Original Assignee
Eugen Fahrion GmbH and Co
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 DE4209485A external-priority patent/DE4209485A1/de
Priority claimed from DE9205838U external-priority patent/DE9205838U1/de
Application filed by Eugen Fahrion GmbH and Co filed Critical Eugen Fahrion GmbH and Co
Publication of EP0596892A1 publication Critical patent/EP0596892A1/fr
Withdrawn legal-status Critical Current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
    • B23B31/001—Protection against entering of chips or dust
    • 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
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
    • B23B31/201—Characterized by features relating primarily to remote control of the gripping means
    • B23B31/2012—Threaded cam actuator
    • B23B31/20125—Axially fixed cam, moving jaws
    • 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
    • B23B31/36—Chucks with means for adjusting the chuck with respect to the working-spindle

Definitions

  • the invention relates to a collet chuck for a machining tool provided with a clamping shank, the shank being received by a collet whose first outer cone can be inserted into an inner cone of a chuck of a processing machine, and the collet being axially inward by means of a clamping nut placed on the chuck the inner cone can be pressed in.
  • a collet chuck of this type is already known.
  • a total force superimposed from an axial and a radial force component is exerted on the collet.
  • the collet is not only pressed axially into the chuck, but is also loaded transversely to its longitudinal axis.
  • the consequence can be a side Offset of the geometric axis of the machining tool relative to the geometric axis of the tool spindle in which the chuck is inserted. Although these are only amounts in the hundredths of a millimeter range, this is not, or at least reluctantly, tolerated in view of the desired precision of the concentricity and thus also the processing.
  • the object of the invention is therefore to develop a collet chuck of the type described above so that an increased concentricity of the tool used therein is achieved.
  • the collet chuck is characterized in that an annular pressure piece with an inner cone inserted between the clamping nut and a second outer cone of the collet carries a guide sleeve which, with little radial play, carries a cylindrical outer jacket of the chuck engages, and that between the clamping nut and the annular pressure piece or between the annular pressure piece or its guide sleeve and the chuck several, in particular evenly distributed pressure adjusting screws are connected, or that the clamping nut rests with an inner cone on a second outer cone of the collet and it carries a guide sleeve, which overlaps a cylindrical outer casing of the chuck with little radial play, and that several, in particular, between the clamping nut and an axially and radially supported ring on the chuck es particular adjusting screws evenly distributed around the circumference, or that the clamping nut rests with an inner cone on a second outer cone of the collet and
  • This group of inventions is based on the only general inventive idea, in the case of a generic collet chuck, to slide a guide sleeve onto its chuck with little radial play, which carries an annular pressure piece which, when the clamping nut is tightened, presses against the second outer cone of the collet and thereby the latter into the inner cone of the chuck, whereby the shank of the machining tool is held in a clamped manner and that a lateral offset of the geometric axis of the machining tool with respect to the geometric axis of the tool spindle in which the chuck is inserted is eliminated by means of adjusting screws.
  • the thrust piece is provided with a guide sleeve which enables the thrust piece to be guided for a relatively long time on the chuck, an inclined position of the thrust piece relative to the theoretical optimal position becomes successful, in particular because of the close fit between this sleeve and the chuck counteracted.
  • the game mentioned is in the order of preferably 1/100 to 2/100 mm. The longer the guide between the pressure piece and the chuck, the more favorable results can be expected. For practical reasons, there are limits.
  • the clamping sleeve is not produced as a separate part, but is formed directly on the clamping nut.
  • the longitudinal guide on the chuck or on their cylindrical outer jacket also takes place with very little radial play. Instead of forcing adjustment screws, adjustment screws are used there, which are primarily used as lag screws.
  • part of the clamping nut is designed as a guide sleeve, which enables the clamping nut to be guided for a relatively long time on the chuck, then, in particular because of the close fit between the guide sleeve and the chuck, an inclined position of the guide sleeve and thus also successfully counteracted the clamping nut compared to the theoretical optimal position.
  • the radial force component of this local action effects the alignment of the tool in the direction of this radial component and thus the reduction of an undesired radial deflection of the tool in the collet. If, for example, four such adjusting screws have been staggered on the circumference, one can bpsw. the desired alignment success can be achieved by screwing in one or more screws and, if necessary, loosening one or more other screws.
  • a further development of a first variant of the invention provides that the clamping nut can be screwed onto the chuck and the forcing adjustment screws are connected between the clamping nut and the annular pressure piece.
  • Tightening an impression adjusting screw means an increased radial action of the pressure piece on the collet in this area.
  • the radial force component of this local action effects the alignment of the tool in the direction of this radial component and thus the reduction of an undesired radial deflection of the tool in the collet. If, for example, four such adjusting screws have been staggered on the circumference, one can bpsw. the desired alignment success can be achieved by screwing in one or two screws and, if necessary, loosening one or more other screws.
  • the feed direction of the push-off adjusting screws expediently runs parallel to the longitudinal axis of the collet, wherein the adjusting screws can be screwed into the clamping nut. More specifically, are the forcing adjustment screws in the inner collar of the clamping nut, which overlaps the pressure piece from the front.
  • a further embodiment of the invention results from claim 4. It ensures that force is introduced at a precisely specified point.
  • clamping nut is rotatably but non-displaceably mounted on the chuck, so that rotation does not lead to an axial displacement of the clamping nut, but to an axial displacement of the pressure piece relative to the clamping nut and the chuck.
  • a suitable measure prevents rotation of the pressure piece on the chuck. This can be done in a particularly advantageous manner
  • a further development of the invention provides that the chuck is provided with a number of radial notches corresponding to the number of forcing adjusting screws, the depth of which continuously decreases from the free end face of the chuck towards the clamping nut. Adjustment screws and notches can prevent the pressure piece from turning when the clamping nut is tightened and they form the adjusting device for exact centering of the machining tool inserted into the collet, e.g. a milling cutter, drill, thread cutter and the like. When the clamping nut is loosened, the inner ends of the adjusting screws engaging in the notches are displaced towards the lower groove end and thereby loosened.
  • each forcing adjusting screw carries at its inner end a peg-like extension which engages in the associated radial notch of the chuck.
  • the diameter and length of the shoulder depend on the maximum penetration depth and the groove width.
  • a further variant of the invention provides that the chuck is provided with a circumferential groove which is approximately semicircular in cross section and into which a number of balls engage, each of which is located in an outside closable radial bore of the clamping nut. Sealing can be done, for example, with the aid of threaded plugs.
  • a rotatable but non-displaceable mounting of the clamping nut can easily be achieved in another known manner, but a ball bearing of the type described is particularly expedient because of the low friction.
  • a further embodiment of the invention results from claim 13.
  • the cross section of the two grooves is semicircular, so that overall there is a circular cross section of the circumferential groove.
  • the latter is filled with balls of corresponding diameter, so that a unit comparable to a radial ball bearing is created at this point.
  • the pressure ring should of course Do not tilt against the guide sleeve, which can be achieved by a tight fit and a corresponding ring width. As a result, the alignment of the guide sleeve or the clamping nut can then be transmitted directly to the collet via the pressure ring.
  • a radial ball fill hole of the guide sleeve is expediently closable in particular by means of a stopper.
  • the latter is known on its own and therefore does not need to be explained in more detail.
  • a further embodiment of the invention in this regard results from claim 16.
  • the necessary seal must also be provided within, for example with the help of at least one O-ring, so that the liquid supplied under pressure also adopts no other undesirable location of the collet chuck can escape.
  • solutions are already known, which is why no further explanations are necessary here either.
  • a further development in this regard results from claim 17.
  • the great advantage of all the exemplary embodiments is that a collet of conventional design can be used, so no special design is necessary in this regard.
  • Figures 1 to 5 show five embodiments each as a half section.
  • a collet of conventional design picks up the shank of a processing tool 2, for example a milling cutter, drill, tap or the like, and holds it in a clamped manner.
  • the collet 1 has a first outer cone 3 which is inserted into an inner cone 4 of a chuck 5, the conicity being of course the same in each case.
  • the chuck 5 is, in turn, inserted in a known manner into a formally adapted receptacle of a tool spindle, not shown, of a machine tool and held therein by known means.
  • the collet also has a second outer cone 8, which is shorter than the first outer cone 3 and whose inclination is opposite to that of the first outer cone 3.
  • the second outer cone 8 engages in an inner cone 9 of the annular pressure piece 7, both cones again having the same angle and their length or height being approximately the same size.
  • the collet l is slit longitudinally several times. Between the two cones 3 and 8 there is a circumferential annular groove 10. With regard to the longitudinal slots of the collet 1, all known designs come into question.
  • the annular pressure piece 7 now carries a guide sleeve 11, the latter being molded in one piece in particular. It is pushed onto the cylindrical outer jacket 12 of the free end piece 13 of the chuck 5 with little radial play.
  • the radial play is of the order of 1/100 to 2/100 mm.
  • the guide sleeve 11 is cylindrical and it is surrounded by the cylindrical bore 14 of the clamping nut 6, it being possible to choose a larger clearance at this point.
  • the slight play between the end piece 13 and the guide sleeve 11, on the one hand, and the relatively long length of this guide, on the other hand, ensure that the guide sleeve 11 is attached to the chuck 5 to a large extent so as not to tip over.
  • the clamping nut 6 At its left end in the drawing, the clamping nut 6 carries a nut thread 15 with the aid of which it can be screwed onto the bolt thread 16 of the chuck 5.
  • rotating the clamping nut 6 in one direction causes the inner collar 17 of the clamping nut 6 to be pressed against the annular pressure piece 7, while loosening the clamping device is effected when rotating in the opposite direction.
  • the inner collar 17 does not, however, directly press against the pressure piece 7; rather, in the exemplary embodiment according to FIG. 1, a plurality of pressure adjusting screws 18, in particular evenly distributed over the circumference, are interposed. With the usual sizes of these collet chucks, four or five such pressure adjusting screws are sufficient.
  • each impression adjusting screw 18 is preferably parallel to the geometric axis 22 of the collet chuck extends.
  • the machining tool 2 is inserted into this collet chuck in a known manner and held in the collet 1 by clamping the clamping nut 6.
  • the runout is then checked. Insofar as concentricity fluctuations beyond the permissible dimension are present, these are eliminated by screwing in at least one forcing adjusting screw 18 and, if necessary, unscrewing at least one other, for example diametrically opposite, adjusting screw. Measurements have shown that run-out fluctuations down to the order of magnitude of approximately less than 5 u can be reduced by adjusting the adjusting screws 18.
  • Clamping nut 6 rotatably but axially immovably mounted on the chuck 5.
  • the guide sleeve 11 is slidably but non-rotatably mounted on the chuck 5 in the axial direction of the collet chuck.
  • a rotation of the clamping nut 6 in one direction of rotation thus causes a displacement of the guide sleeve 11 in the arrow direction 23 and thus a tensioning of the machining tool 2, while a rotation in the opposite direction results in a displacement against the arrow 23, which causes the machining tool 2 to be released.
  • the clamping nut 6 and the guide sleeve 11 are to some extent in extension from each other while in Fig.
  • the guide sleeve 11 is encompassed by the clamping nut 6, which results in a more compact, but larger in diameter Design leads. Which of the two designs you choose depends in particular on the particular use of the collet chuck. Otherwise, the same parts of the two figures are provided with the same reference numbers. 2, the guide sleeve 11 is in one piece with the annular Pressure piece 7 manufactured, which can act with its inner cone 9 on the second outer cone 8 of the collet 1.
  • the push-off adjusting screws 24 are not on the clamping nut 6, but on the guide sleeve 11 and its longitudinal axis 25 consequently runs in the radial direction.
  • the feed 5 is one of the number of
  • Forcing-adjusting screws 24 are provided with a corresponding number of notches 26, the depth of which increases from the inside to the outside or, conversely, steadily decreases from the free end face 27 of the chuck against the clamping nut 6.
  • the push-off adjusting screws 24 each carry a peg-like extension 28 which engages in the associated notch 26 of the chuck 5.
  • the push-off adjusting screws 24 or their peg-like extension 28 in cooperation with the associated notch 26 each not only form a device for adjusting the machining tool 2, but can also serve as an anti-rotation device for the annular pressure piece 7 or the guide sleeve 11, one acts counter-rotation of the guide sleeve 11 when tightening the clamping nut 6 in FIG. 1 by polishing at least the outer end face 21 possibly also the opposite surface of the inner collar 17 of the clamping nut 6 or providing it with a smooth surface in another known manner.
  • FIG. 1 In the embodiment of FIG.
  • the chuck 5 of FIG. 2 is provided in the area of the threadless part of the clamping nut 6 with a circumferential outer groove 29 which is approximately semicircular in cross section and into which a number of balls 30 engage. They effect the rotatable but axially immovable mounting of the clamping nut 6 on the chuck 5. So that the balls are held outwards and the game can be switched off, a locking member, for example a threaded bolt 32, is in the threaded bore 31, which receives a ball 30 turned in.
  • a locking member for example a threaded bolt 32
  • the machining tool 2 is clamped in the collet 1 by turning the clamping nut 6. If impermissible run-out fluctuations are subsequently determined, one or more of the push-off adjusting screws 24 are screwed in, as in the first variant, and one or more others are slightly unscrewed if necessary.
  • the clamping nut 6 and the guide sleeve 11 are coupled in FIG. 1 via a number of balls 37 which are located in a circumferential annular groove.
  • the latter exists from two halves, the clamping nut 6 and the guide sleeve 11 each having half an annular groove.
  • the annular groove is at least slightly larger than the outer diameter of the ball in the axial direction, so that the clamping nut 6 can perform the necessary movements relative to the guide sleeve 11. But these are movements in the
  • a ring 40 for example a snap ring, is inserted into a groove 39 in the guide sleeve 11. It engages in the eccentric position of its bore in the annular groove 10 of the collet 1 and thus rests on the inner end face of the second outer cone 8 of the collet 1 when the clamping nut 6 is removed.
  • the guide sleeve 11 is formed directly on the clamping nut 6 and is located there between the nut thread 15 and an inner cone 9 of the clamping nut 6. It lies against the cylindrical outer jacket 12 of the chuck 5 with a small radial clearance.
  • a straightening ring 43 is inserted into an outer groove 42 of the chuck 5. So that it can be assembled, it consists of two ring halves which are connected, for example screwed together. It is held with little play both in the radial and in the axial direction, so that it can be easily rotated on the chuck 5.
  • a plurality of adjusting screws 44 are held on the adjusting ring 43. Each passes through a through hole 45 of the straightening ring 43 and its thread 46 is screwed into a nut thread 47 of the clamping nut 6 which is open axially towards the direction ring 43. With the aid of these adjusting screws 44, the clamping nut 6, which is slightly inclined due to contamination and thus asymmetrically acting on the collet 1, can be aligned with the chuck 5 such that an optimal concentricity of the machining tool 2 is ensured. It must be noted here that the threaded connection 15, 33 between the clamping nut 6 and the chuck 5 has a relatively large amount of play, even with training in accordance with the standards. Alignment is carried out analogously to FIG. 1 by tightening or releasing one or more adjusting screws 44 to a greater or lesser extent while simultaneously measuring the concentricity on the machining tool 2.
  • the head 48 of the adjusting screws 44 rests on an end face 49 of the alignment ring 43 remote from the tension nut, which, as in this exemplary embodiment, can be on the inside because of the two-part design of the ring or, in the case of another construction, the outer end face.
  • the alignment ring 43 is formed by an outer collar of the lining 5. In this case it cannot be rotated relative to the feed.
  • the nut thread for the adjusting screws 44 must then be located on an auxiliary ring which is pushed onto the clamping nut 6 from the front, but which is supported on an outer collar of the clamping nut 6 on the direction of the ring must be that the necessary tensile force and thus also straightening force for straightening the possibly slightly inclined clamping nut 6 can be applied with the adjusting screws 44.
  • a ring 40 which facilitates dismantling, is used with a bore that is eccentric in the position of use, which is blown into an inner groove of the clamping nut 6.
  • FIG. 4 shows an advantageous development of the embodiment according to FIG. 2.
  • the annular pressure piece 7 is extended there beyond the second outer cone 8 and there is an inner collar 51 on the extension piece. It rests against a pressure ring 52 which is inserted into the bore 54 without play .
  • a sealing ring 53 made of resilient material, in particular of rubber, flexible plastic or the like.
  • this sealing ring is pressed together in such a way that that it bears in a sealing manner both on the protruding shaft part of the machining tool 2 and on the bore 54 and, due to the pressure, of course also on the outer end face 55 and the inner end face of the pressure ring 52.
  • the main purpose of this seal is to prevent the escape of coolant which is conveyed to the machining point via the coolant channel 100 and a channel in the tool 2. It also prevents chips, moisture or even liquid from getting inside the collet chuck.
  • Collet chuck executes and consequently the sealing ring 53 is only exposed to an axial load.
  • the sealing ring 6 can be loaded in the circumferential direction due to the rotary movement of the clamping nut 6 when clamping the machining tool 2.
  • a collet 101 of a conventional type takes up the shank of a processing tool 102, for example a milling cutter, drill, thread cutter or the like, and holds it in a clamped manner.
  • the collet 101 has a first outer cone 103 which is inserted into an inner cone 104 of a chuck 105, the conicity being of course the same in each case.
  • the chuck 105 is, in turn, inserted in a known manner into a formally adapted receptacle of a tool spindle, not shown, of a machine tool and held therein by known means.
  • the collet also has a second outer cone 108, which is shorter than the first outer cone 103 and whose inclination is opposite to that of the first outer cone 103.
  • the second outer cone 108 engages in an inner cone 109 of the pressure ring 107, both cones again having the same angle and their length or height also being approximately the same size.
  • the collet 101 is longitudinally slit several times in a known manner.
  • a circumferential annular groove 110 is located between the two cones 103 and 108.
  • the clamping nut is partially designed as a guide sleeve 111, i.e. the latter is molded in one piece. It is pushed onto the cylindrical outer jacket 112 of the free end piece 113 of the chuck 105 with little radial play.
  • the radial play is of the order of 1/100 to 2/100 mm.
  • the slight play between the end piece 113 and the guide sleeve 111, on the one hand, and the relatively long length of this guide, on the other hand, ensure that the guide sleeve 111 is attached to the chuck 105 to a large extent so as not to tip over.
  • the clamping nut 106 carries a nut thread 115, with the aid of which it can be screwed onto the bolt thread 16 of the chuck 105.
  • rotating the clamping nut 106 in one direction causes the pressure ring 107 to be pressed against the second outer cone 108, while rotating in the opposite direction causes the clamping device to be released.
  • the pressure ring 107 is in the thread distant with little play End of the clamping nut 106 inserted and rotatable relative to the latter, but axially immovable.
  • the clamping nut 106 is rotated relative to the pressure ring 107, which exerts an axial contact force on the second outer cone 108 of the collet 101.
  • the axial entrainment takes place via a plurality of balls 137 which have been introduced into an annular groove 157.
  • the annular groove is formed by a circumferential groove 158 of the pressure ring 107 and a circumferential inner groove 159 opposite this at the distal end of the guide sleeve or the clamping nut 106, these two grooves each having a semicircular cross section.
  • the balls are filled in via a radial ball filling bore 160 of the guide sleeve 111, which can be closed by means of a stopper, in particular a threaded bolt 138.
  • a driving ring 140 is inserted, in particular blown in. This ring engages with a large distance on all sides in a radial outer groove 110 of the collet 101, which is located between the two cones 103 and 108.
  • the pressure ring 107 can be provided with a radially inwardly projecting inner collar 151. With its help, a pressure ring 152 and a sealing ring 153 can be pressed against the end face 155 at the outward-facing end of the collet 101.
  • the sealing ring 153 also lies radially on the outside of the shaft of the machining tool 102 and the pressure ring 107.
  • the collet 101 is radially slotted in the conventional, that is to say standardized, design, and thus lubricant and cooling liquid, which can be supplied with a corresponding design of the machine in the direction of arrow 163, can escape radially from these slits in the collet, the flow path can be shown in FIG axial direction outwards with Shut off with the help of the sealing ring 153, so that the liquid must inevitably exit via the lubrication channel or channels of the machining tool, for example a drill. This liquid can escape through other channels and gaps in a known manner, for example by means of O-rings.
  • a plurality of forcing adjustment screws 124 are screwed into the radial thread of the guide sleeve 111, evenly distributed over the circumference. Its inner end 161, which is suitably designed at the free end, lies against the outer circumference of the cylindrical outer shell 112 of the chuck 105. With the help of these push-off adjusting screws, the concentricity of the
  • Such radial run-out errors can occur, for example, if there is an impurity in the threaded connection 115/116 between the clamping nut 106 and the chuck 105, which displaces the existing radial play on one side.
  • the dash-dotted line 162 indicates the shape of the clamping nut 106 or the guide sleeve 111 and the pressure ring 107 at its free end, for example, if the attachment of a sealing ring 153 and pressure ring 152 is dispensed with. If a sealing ring 153 is present, it consists of resilient material, in particular rubber, soft-elastic plastic or the like. In addition, this seal naturally also prevents chips, moisture or even liquid from penetrating into the interior of the collet chuck.

Landscapes

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

Abstract

Afin de réduire ou si possible éliminer entièrement les battements radiaux d'un outil d'usinage retenu dans un mandrin avec pince de serrage, tout en utilisant une pince de serrage (1) classique, le membre de pression annulaire (7) d'un mandrin avec pince de serrage de ce type est pourvu d'une douille de guidage (11), notamment solidaire, qui entoure une enveloppe extérieure cylindrique (12) du mandrin (5) ou de la queue (13) du mandrin avec un jeu radial très réduit. Des boulons à chasser de réglage (18, 24) répartis notamment de manière uniforme autour de la circonférence permettant de centrer avec précision l'outil d'usinage (2) serré dans le mandrin. Les boulons à chasser de réglage sont situés par exemple entre l'écrou de serrage (6) et le membre de pression annulaire (7), ou entre le membre de pression annulaire (7) ou sa douille de guidage (11) et le mandrin (5).
EP92910750A 1991-07-27 1992-05-28 Mandrin avec pince de serrage Withdrawn EP0596892A1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE4124975 1991-07-27
DE4124975 1991-07-27
DE4209485A DE4209485A1 (de) 1991-07-27 1992-03-24 Spannzangenfutter
DE4209485 1992-03-24
DE9205838U 1992-04-30
DE9205838U DE9205838U1 (de) 1992-04-30 1992-04-30 Spannzangenfutter
PCT/EP1992/001190 WO1993002822A1 (fr) 1991-07-27 1992-05-28 Mandrin avec pince de serrage

Publications (1)

Publication Number Publication Date
EP0596892A1 true EP0596892A1 (fr) 1994-05-18

Family

ID=27202755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92910750A Withdrawn EP0596892A1 (fr) 1991-07-27 1992-05-28 Mandrin avec pince de serrage

Country Status (3)

Country Link
EP (1) EP0596892A1 (fr)
JP (1) JPH06509515A (fr)
WO (1) WO1993002822A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2362345B (en) * 2000-04-17 2003-12-17 600 Uk Ltd Machine tool arrangements
DE102013110043A1 (de) * 2013-09-12 2015-03-12 Haimer Gmbh Spannvorrichtung
CN104191295A (zh) * 2014-09-10 2014-12-10 芜湖市甬微制冷配件制造有限公司 一种车床夹头
US9849520B2 (en) 2015-08-13 2017-12-26 Kennametal Inc. Inverted piloted collet chuck and applications thereof
US20190329328A1 (en) * 2017-01-02 2019-10-31 Atlas Copco Industrial Technique Ab Power tool with working implement attachment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735688A (en) * 1956-02-21 Collet and chuck
GB551720A (en) * 1941-09-04 1943-03-08 Chittenden Corp Improvements in or relating to collet chucks
DE853849C (de) * 1942-03-10 1952-10-27 Schuette Fa Alfred H Schutzvorrichtung fuer die Spanneinrichtung von Stangen verarbeitenden Werkzeugmaschinen
DE3636581A1 (de) * 1986-10-28 1988-05-19 Glimpel Emuge Werk Spannvorrichtung fuer werkstuecke oder werkzeuge mit hoher rundlaufgenauigkeit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9302822A1 *

Also Published As

Publication number Publication date
JPH06509515A (ja) 1994-10-27
WO1993002822A1 (fr) 1993-02-18

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