WO2020126107A1 - Pince de serrage et mandrin à pince de serrage - Google Patents

Pince de serrage et mandrin à pince de serrage Download PDF

Info

Publication number
WO2020126107A1
WO2020126107A1 PCT/EP2019/051906 EP2019051906W WO2020126107A1 WO 2020126107 A1 WO2020126107 A1 WO 2020126107A1 EP 2019051906 W EP2019051906 W EP 2019051906W WO 2020126107 A1 WO2020126107 A1 WO 2020126107A1
Authority
WO
WIPO (PCT)
Prior art keywords
collet
tool
opening
locking element
chuck
Prior art date
Application number
PCT/EP2019/051906
Other languages
German (de)
English (en)
Inventor
Martin Schmideder
Joel AMMERSDÖRFER
Original Assignee
Albrecht Präzision GmbH & Co. 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 Albrecht Präzision GmbH & Co. KG filed Critical Albrecht Präzision GmbH & Co. KG
Publication of WO2020126107A1 publication Critical patent/WO2020126107A1/fr

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
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
    • B23B31/208—Longitudinally-split sleeves, e.g. collet chucks with a tool positioning stop
    • 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
    • B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
    • B23B31/1072—Retention by axially or circumferentially oriented cylindrical elements
    • 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
    • B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
    • B23B31/1079—Retention by spring or wire
    • 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
    • B23B31/207—Characterized by features relating primarily to remote control of the gripping means using mechanical transmission through the spindle
    • B23B31/2073—Axially fixed cam, moving jaws
    • 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
    • B23B2231/46—Pins
    • 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
    • B23B2231/58—Self-grasping, i.e., automatic grasping upon insertion of tool or workpiece

Definitions

  • the invention relates to a collet and a collet chuck equipped with this collet.
  • Collet chucks are known in the art for clamping rotating tools.
  • the chuck serves to hold the tool in a predetermined axial position and to transfer a rotational position or rotary movement to the tool.
  • EP 2 857 127 B1 discloses a collet chuck with a conical collet on its outside, the cone having a non-circular polygonal cross section in order to be rotatably received by a collet body, which also has a conical, non-circular seat having.
  • the collet has a cylindrical through opening with a constant circular cross-section in order to accommodate a cylindrical tool shank with a side driving surface in accordance with DIN 1835-B or DIN 6535-HB.
  • the tool shank is initially held in the collet axially and non-rotatably in a frictional manner by the collet being pressed into its seat by a union nut and thereby radially narrowed.
  • a securing element For further axial fixation of a tool position and for securing the same against axial forces, a securing element is provided which sits in the form of a pin inclined to the axial direction in a corresponding obliquely oriented transverse bore of the collet and engages in the recess of the tool shank formed by the lateral driving surface .
  • the Securing element essentially fills the recess of the tool shank formed by the lateral driving surface.
  • a compression spring held in the collet body ensures a secure contact between the securing element and a flank of the side driving surface. However, this only when the collet is inserted into the collet body.
  • the collet according to the invention has a cylindrical pocket opening which is concentrically oriented with respect to the axis and for receiving a cylindrical tool shank, which can have one or more lateral driving surfaces, as they are also known as “Weldon surfaces”.
  • the collet has a conical outside
  • the cross section of the collet is circular, at least in the area of the conical outside, so that the collet can be inserted into the collet body in any angular position without any preferred angular position .
  • the collet is provided with a through opening which extends from its outside to the pocket opening and which includes an acute angle with the axial direction of the collet. This acute angle opens in one direction away from the tool, ie in the direction of decreasing diameter of the conical outside.
  • a locking element seated in the through opening is thus also arranged inclined to the axial direction can engage with a flank of the Weldon surface of the shaft.
  • a biasing means is also provided which is suitable for holding a tool shank in a defined axial position.
  • the preloading means can be placed on the end surface of the tool shank, so that the tool shank is fixed without play between the locking element and the preloading means, in particular to resist forces that act on the tool in a pulling manner.
  • the biasing means can be a screw provided in the collet, a spring element or a similar means which is suitable for holding the tool in the handling of the collet outside of the collet body in a defined axial position. If the pre-tensioning means is a screw, this has the advantage that it can also absorb forces that exert pressure.
  • the collet according to the invention has on its end facing away from the tool on a clamping pin which can be brought into engagement with a clamping gear of a collet body to pull the collet pulling into the seat of the collet body.
  • the collet is compressed radially to clamp the tool.
  • the collet serves equally to release the collet from the conical seat by exerting an axial force on the collet that forces the collet out of the collet gen body via the collet.
  • This concept is particularly suitable for slim collets, whose small cone angle can lead to an extremely tight fit of the collet in the collet body.
  • the cone angle can be so small that it is self-holding, ie the collet cannot be released by the forces transmitted to the tool even if the clamping gear does not exert any pulling force on the clamping pin.
  • the angle of the through opening to the axial direction is preferably such that the cylindrical tool shank and in particular its lateral recess is adjusted so that it is at most as large as an angle that an edge surface of the driving surface includes with the axial direction of the collet.
  • the locking element can therefore, depending on the training, be in line contact or surface contact with the edge surface.
  • the angle is preferably dimensioned such that the most radially inner solder of the surface of the locking element in contact with the tool shank meets the opposite wall of the through hole. This enables a secure axial hold of the tool shank in the collet and prevents the locking element from tilting.
  • One measure that can contribute to fulfilling this condition is that the end face of the locking element has an axial length that is at most three quarters of the axial length of the standardized side driving surface. This prevents the inclined locking element from tilting, particularly in the case of very thin-walled collets.
  • the locking element is provided with a radially outward effective captive device, i.e. the locking element is seen securely from the outside in the
  • the locking element can be secured by an elastic element that completely or partially encompasses the collet, such as a ring spring, a snap ring, a spring element, a clip, a rubber ring or the like. More preferably, the locking element is provided with a radially inward effective captive tion. This protection against loss is designed in such a way that, if there is no tool shaft in the collet, it prevents the locking element from falling radially inward into the pocket opening. To do this, the locking element be connected to the radially outwardly effective securing element, for example a snap ring or a clip. Alternatively, the locking element can be a projecting beyond its side surface and thus not fitting through the passage opening, such as a tongue, a head or the like.
  • the collet has a plurality of through openings which are arranged offset in relation to one another in the axial position and / or in the angular position.
  • the axial offset enables the tool shank to be locked in the collet in various axial positions.
  • the through openings arranged in different win positions can contribute to increasing the concentricity of the tool and ensuring symmetrical relationships with regard to the radial rigidity of the collet and the entire chuck. This is independent of the possibility of setting different axial positions.
  • the collet can in particular have an opening or recess opposite the locking element, which serves to reduce weight at the point opposite the locking element. This means that any imbalance emanating from the Weldon flattening of the tool shank can be fully or partially compensated for, which improves concentricity.
  • the collet chuck according to the invention uses a collet according to the invention and its advantages.
  • the combination of the collet according to the invention and the body adapted to this collet is a collet chuck with a self-locking cone angle, in which the collet is held firmly in the collet body even if it is resistant to machining forces Tension gear is not tightened, but is released. This will damage the tool and Accidents are also avoided if the clamping gear is loosened to such an extent after clamping the collet that it no longer exerts any axial tensile force on the collet.
  • the circular cross section of the collet in conjunction with the circular cross section of the associated seat in the collet body in connection with the clamping gear causes tightening of the collet when using the tool when the collet rotates somewhat with respect to the clamping gear.
  • the clamping thread of the clamping extension is matched to the preferred direction of rotation of the chuck in normal use, that is, to right-handed operation.
  • Figure 1 shows the collet chuck according to the invention in an overview
  • Figure 3 is a modified embodiment of the collet in a collet chuck, in longitudinal section;
  • Figure 4 shows a further modified embodiment of a collet chuck in a collet body, in longitudinal section
  • FIG. 5 the collet, in a partial side view
  • FIG. 6 the collet according to FIG. 5, in a longitudinal section.
  • a chuck 10 for clamping a tool 11 is shown, which is illustrated by its tool shank 12.
  • the tool 11, its tool shank 12 and the entire collet chuck 10 define an axial direction A, which is illustrated in dash-dot lines in FIG. 1 and which, in typical application, corresponds to the axis of rotation of the tool 11 and the collet chuck 10.
  • the collet chuck 10 has a suitable connection on the machine side, for example a standardized coupling device 13, for example in the form of a standardized hollow taper shank 14.
  • a gripping disk 15 or another structure which can be transferred into engagement with a tool gripper can be provided for cooperation with an automatic tool changing system.
  • the tool 11 can be any tool, in particular a tool for machining workpiece machining, such as a drill, milling cutter or the like.
  • the tool 11 is at least typically a tool with one or more cutting edges, the tool 11 rotating in use about the axis of rotation given by the axial direction A.
  • the collet chuck 10 includes a chuck body 16 which connects to a gear section 17 of the collet chuck.
  • the gear section 17 and the chuck body 16 are arranged concentrically to the axis marked by the axial direction A.
  • FIG. 2 illustrates an axial section through the collet chuck with the tool shank 12 held therein.
  • the chuck body 16 has a conical seat 18 with a circular cross-section for a collet 19 which is in contact with the seat 18 and is therefore in contact with the chuck body 16. is taken.
  • the conical seat 18 is defined by the conical wall surface of an opening leading into the chuck body 16. This opening ultimately leads through the chuck body 16, receives the tensioning gear and opens at the coupling device.
  • a threaded ring 20 separates a gear chamber 21 in which a clamping nut 22 is rotatably mounted.
  • the clamping nut 22 is axially fixed but rotatable in the gear section 17 by means of axial thrust bearings 23, 24.
  • a clamping screw 25 is used, which can be rotated by a suitable profile 26, for example in the form of an internal hexagon, with a clamping key in order to rotate the clamping nut 22 about the longitudinal axis (axial direction A).
  • the collet 19 used to hold and clamp the tool shank 12 has a conical outer surface 27, the cone angle of which corresponds to the cone angle of the seat 18 and which, like this, defines a circular cross section.
  • a cylindrical formed in the collet 19 serves to receive the tool shank 12
  • the collet 19 can have a plurality of longitudinal slots 29, 39, as indicated in FIG. 5, which extend over at least part of the length of the conical section of the collet 19.
  • the collet 19 has at its end facing away from the tool 11 a chucking pin 31 which carries an external thread and is engaged with an internal thread of the clamping nut 22.
  • the Spannzap fen can be moved in a controlled manner in the axial direction in order to move the collet 19 axially.
  • the collet 19 has at least one penetrating its wall extending from the outer surface 27 to the blind opening 28 through passage 32 which is arranged obliquely to the axial direction A. It includes, as can be seen from the special representation according to FIG. 6, an acute angle. This angle opens away from the tool shank 12 in the direction of the coupling device 13 or onto the gear section 17 arranged between the coupling device 13 and the collet chuck.
  • a locking element 33 is arranged, for example in the form of a round in cross-section, bevelled at its ends, which is movably mounted in the through opening 32 in its longitudinal direction 34 ( Figure 6).
  • the through opening 32 and the blocking element 33 are adapted in arrangement and size to a standardized recess 35 formed on the tool shank 12, which is formed by a lateral flattening 36 of the tool shank 12 similarly or identically to DIN 1835-B and DIN 6535-AB.
  • This flattening 36 is delimited by an edge surface 37 on the tool side and an edge surface 38 on the side of the tool body, which each form an acute angle both with one another and with the axial direction A.
  • the end face of the pin can be oriented parallel to the flat 36.
  • the acute angle ⁇ enclosed by the edge side 38 of the futterseiti with the axial direction A preferably coincides with the acute angle at which the through opening 32 is inclined.
  • the diameter of the locking element 33 which is circular in cross section, for example, is preferably such that a solder L, which is from the transition of the edge surface 38 for flattening 36 and thus from the radially inner corner of the locking element 33 to the opposite wall of the through hole 32 (see again FIG. 6), the bore wall hits, its point of impact 39 preferably being approximately in the middle of the wall thickness of the collet 19 lies.
  • the diameter of the clamping element 33 is preferably significantly smaller than the axial length of the flattened portion 36.
  • the axial length of the end face of the blocking element 33 facing the flattened portion 36 is, for example, only three quarters of the length of the flattened portion 36 or less.
  • egg ne captive device 40 can be used, for example by egg nen the collet 19 in the area of the through opening 32 at least partially comprising C-clip ring 41, a Rubber cord, a spring clip or the like can be formed.
  • a biasing means 42 which, for example, can be formed by a screwed into a longitudinal bore of the clamping pin 31 clamping screw 43, which is placed against the rear end face of the tool shank 12.
  • the fixation can be effective both inside and outside of the chuck body 16, so that the unit consisting of tool 11 and collet 19 is safe to handle outside of the chuck body 16.
  • the collet 19 can have in addition to the through opening 32 at least one, preferably arranged opposite, as well as further through openings 44 (Figure 6), 45 ( Figure 5), which at different angle positions or (in Figure 2) the through opening 32 ge can be arranged opposite.
  • this can in terms of their radial compliance are symmetrized, which is the concentricity of the tool 11 benefits.
  • An unbalance can also be eliminated by this through opening 44 or another recess provided at this point or in the vicinity thereof, which would otherwise be caused by the flattening 36 and the locking element 33.
  • the collet chuck 10 can be provided at its tool-side end with a threaded attachment 54 which, for example, has one or more channels 55, 56 in order to supply the tool 11 with coolant, lubricant or other fluids.
  • the threaded attachment 54 can influence the damping and / or the radial rigidity of the chuck body. With the collet 19, the Ge thread attachment 54 is not in direct contact.
  • the collet chuck 10 described so far operates as follows and is used as follows:
  • the collet 19 is first removed from the collet chuck 10 by rotating the screw 25, the clamping nut 22 is rotated in the release direction, whereby the collet 19 is moved out of its seat 18. Is solved, it can now be completely screwed out of the chuck body and removed, for example, by rotating it by hand or by rotating a tool already in it.
  • the tool with its tool shank 12 is inserted into the pocket opening 28.
  • the locking element 33 is moved outwards manually, for example, so that the tool shank 12 can pass through it until the flat 36 comes into the area of the locking element 33 so that it can snap into the recess 35 formed by the flat 36.
  • the previously removed or at least screwed away from the bag opening 28 clamping screw 43 in Screwed towards the tool 12 to grasp the shaft 12 between the end of the clamping screw 43 and the surface 38 and to fix it axially.
  • the collet 19 forms a unit with the tool 11, which can be stored as a whole and can be kept ready for insertion into the chuck body 16. In this way, several tools provided with collets can be kept ready for use in the chuck body 16.
  • this unit is inserted into the seat 18 and rotated so that the clamping pin 31 finds the thread of the clamping nut 22.
  • the tool with collet 19 is then screwed into the chuck body 16 and tightened hand-tight, so that the outer surface 27 of the collet 19 is easily applied to the seat 18.
  • the further clamping is now carried out by turning the screw 25, whereby the collet 19 is pulled into the seat 18. This while maintaining, that is, without significant Ver change of the axially acting on the end face of the clamping screw 43 and the locking element 33 forces, regardless of the axial clamping path of the collet 19. It is ensured that neither overloading the clamping screw 43 nor the locking element 33 occurs. Also it is george that no play in the axial direction between the tool shaft 12 and the locking element 33 and the clamping screw 43 can arise.
  • the screw 25 is rotated until the collet 19 is tightened sufficiently in the chuck body.
  • the cone angle of the outer surface 27 and the seat 18 is so small that the collet 19 is held in the seat 18 self-locking. Even if the axial clamping force acting on the clamping pin 31 is eliminated, the tool 11 with the chuck 19 is so tight in the
  • Chuck body 16 possible creeping or wandering of the collet in the sense of a rotary movement for tightening the same in the clamping nut 22 held non-rotatably by the worm 25.
  • FIG 3 illustrates a captive device 40, to which, in addition to the C-clip ring 41 or any other means mentioned in connection with Figure 2, a structural element 47, for example in the form of an axial projection of the tensioning element 33, belongs.
  • This structural element does not fit through the cross section of the through opening 32 and lies in a corresponding pocket formed in the collet 19.
  • the structural element 47 prevents the locking element 13 from falling into the pocket opening 28 when the tool 11 is missing, even if the C-clip ring 41 or other captive device 40 secures the locking element 33 only radially outwards but not radially inwards.
  • the locking element 33 has a chamfer 48 on its side pointing toward the edge surface 37, which chamfer can facilitate the insertion of the tool shank 12 into the pocket opening 28.
  • the chamfer can be dimensioned such that the tool shaft 12 can push the locking element outward against the force of the securing against loss when it is inserted into the pocket opening 28.
  • a Federele element 49 for example in the form of a coil spring, egg nes spring washer, a rubber element or the like Chen, may be provided.
  • the spring element 49 can be supported axially on a joint with the collet 19 movable abutment, for example in the form of the clamping screw 43, and be suitable for axially applying a force to the tool shaft 12 in one direction out of the pocket opening 28, which presses the tool shaft 29 with the edge surface 38 against the locking element 33.
  • the collets 19 of all of the above-mentioned embodiments can, as mentioned above, have two or more through openings 32, 44, 45, as can be seen in FIGS. 5 and 6. These through openings 32, 44, 45 are preferably inclined at corresponding angles to the axial direction A, the different through openings 32,
  • FIG. 5 illustrates this with the aid of the through openings 32, 45, it being possible for additional openings to be provided which are each offset by an amount X in the axial direction.
  • the axial distance X is preferably set to a value which is removed by the tool in the axial direction when regrinding it.
  • the collet 19 can be used for the regrinding of tools and for the use thereof in the reground state.
  • the axial locking of the tool 12 in the collet 19 allows each of the selected during regrinding to maintain order between the collet and tool even when using the same.
  • the arrangement of different through openings 32, 44, 45 at different axial positions also leads to a reduction in excitable vibration modes. This is also valid if the angular distances of the through openings 32, 44, 45 vary somewhat. If, for example, four through-openings are provided, these can be arranged at 90 ° angles to one another or at different angular intervals (88 °, 92 °, etc.). Even with such asymmetries, excitable vibration modes can be reduced, which leads to a particularly robust and stable low-vibration running of the tool in the collet chuck.
  • the collet chuck according to the invention comprises a collet 19 with a locking element 33 inclined to the radial and a pretensioning means 43 provided in the collets, by means of which the tool shaft 12 of a tool 11 is axially locked in a chuck body 16 prior to the assembly of the collet 19 can be held. This simplifies the handling of the collet and tool and simplifies work processes.

Landscapes

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

Abstract

L'invention concerne un mandrin à pince de serrage comprenant une pince de serrage (19) qui comporte un élément de blocage (33) incliné par rapport à la direction radiale et un élément de précontrainte (43) prévu dans la pince de serrage et permettant de maintenir, de manière bloquée axialement, la tige (12) d'un outil (11) avant le montage de la pince de serrage (19) dans le corps du mandrin de serrage (16). Ainsi, cette invention permet de faciliter la manipulation d'une pince de serrage et d'un outil et de simplifier le déroulement des opérations.
PCT/EP2019/051906 2018-12-21 2019-01-25 Pince de serrage et mandrin à pince de serrage WO2020126107A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018133474.5A DE102018133474A1 (de) 2018-12-21 2018-12-21 Spannzange und Spannzangenfutter
DE102018133474.5 2018-12-21

Publications (1)

Publication Number Publication Date
WO2020126107A1 true WO2020126107A1 (fr) 2020-06-25

Family

ID=65237041

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/051906 WO2020126107A1 (fr) 2018-12-21 2019-01-25 Pince de serrage et mandrin à pince de serrage

Country Status (2)

Country Link
DE (1) DE102018133474A1 (fr)
WO (1) WO2020126107A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195909A (en) * 1963-06-06 1965-07-20 Erickson Tool Co Collet chuck and the like
US3425705A (en) * 1967-03-22 1969-02-04 Erickson Tool Co Collet chuck and the like
US3618962A (en) * 1970-02-17 1971-11-09 Warner Swasey Co Collet chuck
US4938490A (en) * 1987-08-27 1990-07-03 Gte Valenite Corporation Drawback collet
US5152541A (en) * 1990-10-15 1992-10-06 Baumgaertner Peter Chuck
US20120061925A1 (en) * 2010-09-13 2012-03-15 Hans Baumann Collet chuck
US20150091259A1 (en) * 2013-10-02 2015-04-02 Eugen Fahrion Gmbh & Co Kg Tool holder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3586344A (en) * 1968-06-11 1971-06-22 Omark Winslow Co Quick-change tool assembly
DE10056729B4 (de) * 2000-11-15 2007-10-04 Josef Albrecht Bohrfutterfabrik Gmbh & Co. Axial-Spannfutter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195909A (en) * 1963-06-06 1965-07-20 Erickson Tool Co Collet chuck and the like
US3425705A (en) * 1967-03-22 1969-02-04 Erickson Tool Co Collet chuck and the like
US3618962A (en) * 1970-02-17 1971-11-09 Warner Swasey Co Collet chuck
US4938490A (en) * 1987-08-27 1990-07-03 Gte Valenite Corporation Drawback collet
US5152541A (en) * 1990-10-15 1992-10-06 Baumgaertner Peter Chuck
US20120061925A1 (en) * 2010-09-13 2012-03-15 Hans Baumann Collet chuck
US20150091259A1 (en) * 2013-10-02 2015-04-02 Eugen Fahrion Gmbh & Co Kg Tool holder
EP2857127B1 (fr) 2013-10-02 2016-03-16 Eugen Fahrion GmbH & Co. KG Porte-outil avec mandrin pour le serrage d'un outil

Also Published As

Publication number Publication date
DE102018133474A1 (de) 2020-06-25

Similar Documents

Publication Publication Date Title
EP1206990B1 (fr) Pince de serrage
DE102012104606B4 (de) Werkzeugaufnahme für ein Einschraubwerkzeug
DE102011001446B4 (de) Schnellwechseladapter für eine Lochsäge
EP3672749A1 (fr) Interface entre un logement de pince de serrage et un adaptateur d'outil
DE10207153A1 (de) Bohrvorrichtung
DE10154434B4 (de) Anschlagvorrichtung
DE2347364C3 (de) Spannfutter
DE102013108999A1 (de) Werkzeughalter für ein rotierendes Werkzeug
DE102010006918A1 (de) Verbindungssystem zum lösbaren Verbinden zweier Bauteile
DE102018111044A1 (de) Werkzeughalter
DE102006061757A1 (de) Abtriebsteil an einer Handwerkzeugmaschine
DE102019111843B4 (de) Zerspanungswerkzeug
DE102017120235A1 (de) Adapter zur Halterung eines Werkzeugs in einem Spannzangenfutter
DE69215905T2 (de) Spannvorrichtung für fräser oder ähnliche, anpassbar für verschiedene haltergrössen
WO2020126107A1 (fr) Pince de serrage et mandrin à pince de serrage
DE102004029047A1 (de) Werkzeugspannvorrichtung
EP0235607B1 (fr) Mandrin sans clé pour encastrement de foret ou foreuse à percussion
EP3978194B1 (fr) Outil de montage permettant de monter un panneau isolant
DE202015101365U1 (de) Spannfutter
DE3802003A1 (de) Spannfutter fuer gewindeschaefte
EP3223982B1 (fr) Mandrin de serrage
WO1991008072A2 (fr) Systeme de serrage permettant de relier des pieces de façon a eviter leur rotation ou leur deplacement cyclique
WO2002070179A1 (fr) Dispositif pour forets creux a diamants
DE102019111351A1 (de) Vorsatzgerät für eine Hand-Werkzeugmaschine
DE10255270A1 (de) Werkzeug und Verfahren zur Maschinenbearbeitung von Werkstücken

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19702070

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19702070

Country of ref document: EP

Kind code of ref document: A1