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WO2017064312A1 - Manchon intermédiaire et système d'assemblage - Google Patents

Manchon intermédiaire et système d'assemblage Download PDF

Info

Publication number
WO2017064312A1
WO2017064312A1 PCT/EP2016/074819 EP2016074819W WO2017064312A1 WO 2017064312 A1 WO2017064312 A1 WO 2017064312A1 EP 2016074819 W EP2016074819 W EP 2016074819W WO 2017064312 A1 WO2017064312 A1 WO 2017064312A1
Authority
WO
WIPO (PCT)
Prior art keywords
intermediate sleeve
locking pin
recess
channel
receptacle
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/EP2016/074819
Other languages
German (de)
English (en)
Inventor
Nico Cantz
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.)
Schunk SE and Co KG
Original Assignee
Schunk SE and 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 Schunk SE and Co KG filed Critical Schunk SE and Co KG
Publication of WO2017064312A1 publication Critical patent/WO2017064312A1/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
    • B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
    • B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
    • B23B31/305—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck the gripping means is a deformable sleeve
    • 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
    • B23B31/10741—Retention by substantially radially oriented pins
    • 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
    • B23B31/005—Cylindrical shanks of tools
    • 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
    • B23B31/12—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
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/0256—Flats
    • 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
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/026—Grooves
    • B23B2231/0264—Axial grooves
    • 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

Definitions

  • the present invention relates to a connection system comprising a clamping member comprising a receptacle and an intermediate bushing inserted into the receptacle, which has a central shaft receptacle, in which a cylindrical shaft of a component to be clamped, in particular a tool, in whose outer peripheral surface at least one recess is provided, at least is partially insertable to be clamped therein, wherein in the intermediate sleeve a rectilinear channel is formed, which extends transversely to the axial direction and a defined radial direction of the intermediate sleeve, wherein a central portion of the channel to the inside of the wall is open, so that a the intermediate sleeve associated locking pin can be inserted into the channel and positioned in a locking position, in which the end-side end portions of the locking pin within an outer circumferential line of the wall of the intermediate sleeve and thus are outside the recording of the clamping member and a central portion of the locking pin protrudes
  • connection systems of this type are known and are used in particular as a chuck or tool holder on machine tools to attach the cylindrical shaft of a tool such as a milling cutter or drill to the corresponding machine tool.
  • the known chucks have a central receptacle in which the tool shank can be inserted and tightened.
  • the chuck is designed as a so-called hot shrink chuck, which is heated in the recording area in order to use the shaft of a tool to exciting tool in the recording, and fixed during cooling the inserted shaft by press fit.
  • expansion chucks are known.
  • DE 10 201 1 106 421 B3 proposes the shank of the tool via an engagement of a Locking pin to secure in a recess of the shaft within the shaft holder.
  • a rectilinear channel in the form of a circular bore is formed in the intermediate sleeve, which extends transversely to the axial direction and a defined radial direction of the intermediate sleeve - concretely perpendicular to a longitudinal center plane of the intermediate sleeve - and passes through the wall of the intermediate sleeve like a circle.
  • the front end portions of the channel extend fully through the wall, while a central portion of the channel extends only partially around the wall and is open to the inside of the wall.
  • a cylindrical locking pin is inserted, which has a diameter corresponding to the diameter of the bore and in the inserted state with the recess of the tool shank is engageable to form fit in the shank receiving the intermediate sleeve against axial emigration and rotation about its own Secure axis.
  • the pre-assembly of the tool shank in the intermediate sleeve is complicated, since the tool shank must be positioned exactly in the shank receptacle of the intermediate sleeve such that the recess in the tool shank lies opposite the bore of the intermediate sleeve. Otherwise, the locking pin can not be inserted into the hole.
  • the present invention has for its object to provide an alternative connection system of the type mentioned, with a tool can be tightened sure-fire.
  • connection system of the type mentioned above in that the channel is elongated in the defined radial direction of the intermediate sleeve, so that the locking gelungschan within the channel in the defined radial direction of the intermediate sleeve between the locking position and a release position is movable, in which the end-side end portions of the locking pin project partially outwardly beyond the outer periphery of the intermediate sleeve and the central portion of the locking pin is completely within the wall of the intermediate sleeve and thus located outside of the shaft socket.
  • the invention is therefore based on the idea of movably arranging the locking pin in a radial direction of the intermediate bushing in such a way that it can be moved completely out of the area of the shaft receptacle.
  • This makes it possible to insert the shaft of a tool to be clamped even with inserted locking pin in the shaft holder and only then to position the shaft by rotating about its axis and / or axial movement in the shaft holder so that the locking pin inwardly into engagement with the recess of the tool shank and thus can be brought into its locking position.
  • the shaft of the tool to be clamped can first be inserted into the shaft receptacle of the intermediate bushing.
  • the connection system comprises a locking pin associated with the intermediate sleeve, wherein the width of the locking pin corresponds to the width of the channel and the length of the locking pin is chosen so that in the locking position within the outer circumferential line of the wall of the intermediate sleeve and in Engaged with the recess of the shaft is.
  • the width of the channel corresponding to the width of the locking pin is advantageous because it prevents the locking pin has a play in the axial direction of the intermediate sleeve, while the elongated design of the channel in the defined radial direction, the mobility of the locking pin in the defined radial direction is guaranteed.
  • the locking pin is in the locking position within the outer circumferential line of the wall of the intermediate sleeve, it does not engage in the receptacle of the clamping member.
  • the inner wall of the receptacle ensures that the locking pin remains positioned in the locking position as long as the preassembled intermediate sleeve is in the receptacle.
  • the locking pin preferably has a cylindrical shape, and the channel can be designed langlochar- term in the defined radial direction of the intermediate sleeve, the slot is closed at its ends by semi-circles whose radii correspond to the radius of the cylindrical locking pin. Even with this special design tion, the locking pin in the axial direction of the intermediate sleeve no play on.
  • the locking pin in particular at the end-side positions of the slot, ie in the locking position and the release position, a sufficiently stable seat.
  • the locking pin but also have any other suitable shape, such as a polygonal cross-section, in which case the channel and possibly the Recess of the tool are designed to correspond.
  • the channel which preferably extends perpendicular to a longitudinal center plane of the intermediate sleeve, may be closed towards the outside of the intermediate sleeve.
  • the channel is positioned in the axial direction of the intermediate sleeve such that the recess of the shaft which can be inserted into the shaft receptacle of the intermediate sleeve can be positioned opposite the channel with its machine-side, rear end region.
  • the distance of the channel in the axial direction of the intermediate sleeve to a stop means in the interior of the shaft receiving a conventional distance of the recess corresponds to the shaft end, which rests after insertion of the shaft in the shaft receiving the stop means. This ensures that the connection system supports all common tools.
  • such positioning of the channel facilitates and accelerates the finding of the position in which the recess and the channel are aligned in the necessary manner relative to each other.
  • the intermediate sleeve in particular on its engaging in the receiving rear end portion connecting means, via which it is positively connected to the clamping member.
  • a fixation of the intermediate sleeve in the receptacle of the clamping member is thus not only on the clamping action of the clamping member itself, but in addition by a positive connection between the intermediate sleeve and the recording.
  • the shank of the tool is securely secured within the shank receiving the intermediate sleeve, but it is at the same time the intermediate sleeve secured within the recording of the clamping member.
  • the intermediate bush at its engaging in the receiving rear end portion in the peripheral surface on a recess as a connecting means, in which engages an end portion of a locking screw which is screwed into a wall of the clamping member in particular radially penetrating threaded hole.
  • the coming into engagement with the recess of the intermediate sleeve end portion of the locking screw may be formed tapering.
  • the recess may be formed so complementary to the engaging with it end portion of the locking screw, that the intermediate sleeve is positioned axially in the receptacle by the engagement between the locking screw and the recess.
  • the recess of the intermediate sleeve, in which engages the end portion of the locking screw may be formed as an annular groove which extends along the circumference of the intermediate sleeve.
  • the depression may in particular be designed to be complementary to the depression-engaging end section of the locking screw.
  • the recess and thus engaging end portion of the locking screw in particular have a circular cross-section. Due to the complementary design, the intermediate sleeve is not only positioned axially in the receptacle, but also secured against rotation.
  • the inventive fuse of the component to be clamped can be retrofitted in a simple manner even with existing clamping components or clamping devices.
  • an intermediate sleeve according to the invention which can be inserted into a receptacle of a clamping component and which has a central shaft receptacle into which a cylindrical shaft of the component to be clamped, in particular of a tool, in whose outer peripheral surface at least one recess is provided, is at least partially inserted to be tightened therein, wherein in the intermediate sleeve a rectilinear channel is formed, which extends transversely to the axial direction and a defined radial direction of the intermediate sleeve and the wall of the intermediate sleeve passes through the edge of a circle.
  • a central portion of the channel to the inside of the wall is open, so that the intermediate sleeve associated locking pin is inserted into the channel and positionable in a locking position in which the end-side end portions of the locking pin within an outer circumferential line of the wall of the intermediate sleeve and thus located outside of the receiving of the clamping member and a middle portion of the locking Partial starting from the wall of the intermediate sleeve protrudes inside and protrudes into the shaft receptacle of the intermediate sleeve to secure an inserted into the shaft receptacle shaft of the exciting component via an engagement of the central portion of the locking pin in the recess of the shaft within the shaft receptacle.
  • the channel in the defined radial direction of the intermediate sleeve is elongate, so that the locking pin is movable within the channel in the defined radial direction of the intermediate sleeve between the locking position and a release position, in which the end-side end portions of the locking pin partially outwardly beyond the propositionumgang the Projecting intermediate sleeve and the central portion of the locking pin is located entirely within the wall of the intermediate sleeve and thus outside the shaft holder.
  • the intermediate sleeve may have at its rear, for insertion into the receptacle of the clamping member certain end portion of a recess for the engagement of a locking screw.
  • a threaded bore in the wall of the clamping member must be introduced, through which the locking screw can be screwed into the receptacle.
  • a shank tool which is provided with a corresponding recess in its wall, ie, for example, has a so-called Weldon tool shank, in the shank receiving a used such intermediate sleeve and secured therein form-fitting.
  • This is done by inserting the locking pin from the outside into the channel and first positioning it in the release position.
  • This makes it possible, the recess by rotation and axial movement of the shaft opposite to the locking pin to position - if this is not already the case - so that the locking pin automatically slips or is movable from the release position to the locking position in which the locking pin in the recess engages.
  • the intermediate sleeve is inserted with the shaft tool held therein in the receptacle of the clamping member, whereby the locking pin is secured in the receptacle, since it is prevented by the receiving wall bounding the clamping member from escaping to the outside.
  • the locking screw is screwed into the receptacle until it comes into engagement with the recess of the intermediate sleeve, so that it is secured axially and possibly also in the circumferential direction in the receptacle.
  • the non-positive connection can be made in the usual way.
  • the clamping component or the clamping device can have clamping means in order to fix a component in the receptacle.
  • the clamping means then define a clamping range in which they are effective.
  • the threaded bore, through which the locking screw can be screwed into the receptacle preferably opens into the axially rear end region of the receptacle, which lies between the clamping region and the rear end face of the receptacle.
  • the clamping device can be designed as a hydraulic expansion chuck.
  • an expansion sleeve is provided in the body, which defines over its length at least an axial portion of the receptacle and is surrounded by a pressure chamber in which a pressure can be built to inwardly to the expansion sleeve in a thin wall portion defining the clamping region deform.
  • the threaded hole opens in the receptacle in the axial end portion of the receptacle which lies between the expansion sleeve and the axially inner end wall of the receptacle.
  • FIG. 1 shows a schematic view of an embodiment of a connection system according to the present invention with an inserted into an intermediate sleeve shank of a tool in longitudinal section
  • FIG. 2 shows a schematic side view of the intermediate bushing and a locking pin of the connecting system from FIG. 1 in a release position
  • FIG. 3 shows a schematic side view of the intermediate bushing and a locking pin of the connecting system from FIG. 1 in a locking position
  • Figure 4 is a sectional view taken along section line IV-IV in Figure 3, and
  • Figure 5 is another schematic side view of the intermediate sleeve and a locking pin of the connection system of Figure 1 in a locking position.
  • FIGS. 1 to 5 show schematic views of an embodiment of a connection system 1 or of individual components of this connection system 1.
  • the connection system 1 comprises a Clamping component 2, which is designed here in the form of a Dehnspannfutters.
  • the expansion chuck 2 has a base body 3 of a dimensionally stable material, which has a fastening cone for clamping on a work spindle in a manner known per se on its right end region, which is not shown in FIG.
  • a receptacle 4 and a fully surrounding pressure chamber 5 is formed in the base body 3, wherein between the central receptacle 4 and the pressure chamber 5, an elastic thin wall is formed.
  • the pressure chamber 5 is filled with a hydraulic medium such as oil and is connected via a corresponding formed in the base body 3 channel with a hydraulic fluid source in connection.
  • the pressure chamber 5 can be subjected to pressure via the hydraulic fluid source, so that the wall of the receptacle 4 formed in the region of the pressure chamber 5 deforms elastically inwards in order to tension a component in the receptacle 4.
  • the connection system 1 further comprises an inserted into the receptacle 4 intermediate sleeve 6, which has a central shaft receptacle 7, in which a cylindrical shaft 8 of a component to be clamped 9, which is shown here in the form of a milling tool, is inserted.
  • the cylindrical shaft 8 is designed in the manner of a Weldon shaft and has a recess 10 in its outer peripheral surface.
  • the intermediate sleeve 6 has a sleeve body 6 a, which is formed substantially cylindrical, and at its front end carries a radially outwardly projecting flange 6 b, which forms an axial stop surface, via which the intermediate sleeve 6 is positioned axially in the receptacle 4.
  • a rectilinear channel 12 is formed which extends transversely to the axial direction X and a defined radial direction R of the intermediate sleeve 6, - concretely perpendicular to a longitudinal center plane of the intermediate sleeve - and the wall of the sleeve body 6a traversed like a circle ,
  • the arrangement is such that a central portion 14 of the channel 12 to the inside of the sleeve body 6a, that is, to the central shaft receiving 7 of the intermediate sleeve is open.
  • the channel 12 is in the defined radial direction R of the intermediate sleeve 6 oblong, in this case slot-like, formed, wherein the slot is closed at its ends by semicircles.
  • the channel 12 is positioned in the intermediate sleeve 6 so that it faces the recess 10 of the cylindrical shaft 8.
  • a recess 15 is provided in the peripheral wall of the sleeve body 6a, in which a tapered end portion 16 of a locking screw 17 engages in a the wall of the body 3 by radial threaded hole is screwed.
  • the end portion 16 can always be brought into contact with the axially inner or rear edge of the recess 15 in engagement and the intermediate sleeve 6 in the receptacle 4 of the base body 3 are positively secured both in the axial direction and in the circumferential direction.
  • the locking pin 18 rests against the radially outer end side of the channel 12 in the release position.
  • the front end portions 19 of the locking pin 18 project outwardly beyond the outer periphery of the sleeve body 6a of the intermediate sleeve 6.
  • a central portion 20 of the locking pin 18 is completely within the wall of the sleeve body 6a of the intermediate sleeve 6 and thus outside the range of the shaft receiving the seventh
  • the mounting of the shaft 8 of a tool to be clamped in the intermediate sleeve 6 is simple. Specifically, the locking pin 18 is inserted into the channel 12 and the shaft 8 of the tool is inserted into the shaft holder 7. Both processes are possible independently, since the locking pin 18 in his Release position, the shaft receiving 7 releases and thus does not hinder insertion of the shaft 8.
  • the shaft 8 is rotated about its longitudinal axis and / or moved axially back and forth until the position is found in which the recess 10 of the shaft 8, the channel 12 of the socket body 6a of the intermediate sleeve 6 in such a way opposite that the locking pin 8 can be brought inwardly into its locking position, in which it engages in the recess 10 of the shaft 8 in order to secure it in a form-fitting manner in the shaft receptacle 7.
  • the pre-assembled arrangement of intermediate sleeve 6, shaft 8 and locking pin 18 can be inserted into the receptacle 4 of the main body 3 and fixed therein by pressurizing the pressure chamber 5.
  • the sleeve body 6a of the intermediate sleeve 6 is elastically deformed inwardly to clamp the shaft 8 in the shaft holder 7.
  • a release of the positive connection between the locking pin 18 and the shaft 8 is no longer possible when the intermediate sleeve 6 is inserted into the receptacle 4 of the main body 3, because then the wall of the receptacle 4 is a radial movement of the locking pin 12 from the locking position in the Release position prevented.

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

Abstract

L'invention concerne un système d'assemblage (1) comportant un élément de serrage (2) comprenant un logement (4), et un manchon intermédiaire (6) inséré dans le logement (4) et présentant un logement de tige (7) central dans lequel une tige cylindrique (8) peut être serrée. Dans le manchon intermédiaire (6) est ménagé un canal rectiligne (12) qui s'étend transversalement à une direction axiale (X) du manchon intermédiaire (6) et qui est ouvert en direction du logement de tige (7). Une goupille de verrouillage (18) peut être introduite dans le canal (12) et placée dans une position de verrouillage dans laquelle une partie centrale (20) de la goupille de verrouillage (18) dépasse au moins sur une partie de sa circonférence hors de la paroi du manchon intermédiaire (6) et pénètre dans le logement de tige (7) du manchon intermédiaire (6), pour fixer dans le logement de tige (7) une tige (8) de la pièce à serrer (9) introduite dans le logement de tige (7), par emboîtement de la partie centrale (20) de la goupille de verrouillage (18) dans l'évidement (10) de la tige (8). Le canal (12) présente une forme oblongue dans la direction radiale (R) du manchon intermédiaire (6), de sorte que la goupille de verrouillage (18) est mobile dans le canal (12) entre la position de verrouillage et une position de déblocage dans laquelle la partie centrale (20) du tenon de verrouillage (18) se trouve entièrement hors du logement de tige (7).
PCT/EP2016/074819 2015-10-16 2016-10-14 Manchon intermédiaire et système d'assemblage Ceased WO2017064312A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202015105500.5 2015-10-16
DE202015105500.5U DE202015105500U1 (de) 2015-10-16 2015-10-16 Verbindungssystem sowie Zwischenbüchse und Kit mit einer Zwischenbüchse und einem Verriegelungsstift bzw. einer Arretierschraube zur Verwendung in einem solchen Verbindungssystem

Publications (1)

Publication Number Publication Date
WO2017064312A1 true WO2017064312A1 (fr) 2017-04-20

Family

ID=55022181

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/074819 Ceased WO2017064312A1 (fr) 2015-10-16 2016-10-14 Manchon intermédiaire et système d'assemblage

Country Status (2)

Country Link
DE (1) DE202015105500U1 (fr)
WO (1) WO2017064312A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019058973A (ja) * 2017-09-26 2019-04-18 エヌティーツール株式会社 工具保持具
CN112305622A (zh) * 2019-08-02 2021-02-02 中国石油化工股份有限公司 电阻率成像装置
US11045883B2 (en) * 2019-07-11 2021-06-29 Shin-Yain Industrial Co., Ltd. Collet assembly of improved stability and collet thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014108539A1 (de) * 2014-06-17 2015-12-17 Kennametal Inc. Dehnspannfutter
DE102022100972B4 (de) 2022-01-17 2024-09-26 Albrecht Präzision GmbH & Co. KG Spannbauteil und Werkzeughalter
JP7476388B1 (ja) * 2023-04-07 2024-04-30 株式会社日研工作所 工具ホルダおよびそれを備えた工具保持構造
EP4616981A1 (fr) 2024-03-12 2025-09-17 Gühring KG Douille d'expansion pour mandrin de serrage hydro-extensible
EP4616982A1 (fr) 2024-03-12 2025-09-17 Gühring KG Mandrin d'expansion hydraulique

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE102011106421B3 (de) 2011-07-02 2012-10-11 Kennametal Inc. Schaftwerkzeug, Werkzeughalterung für ein Schaftwerkzeug sowie Reduzierhülse für eine Werkzeughalterung
EP2832478A1 (fr) * 2013-07-29 2015-02-04 Schunk GmbH & Co. KG Spann- und Greiftechnik Système de connexion et douille intermédiaire et kit doté d'une douille intermédiaire et d'une vis d'arrêt destinée à être utilisée dans un tel système de connexion
DE102014101122B3 (de) * 2014-01-30 2015-05-28 Gühring KG Hydraulik-Dehnspannvorrichtung für ein Werkzeug

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011106421B3 (de) 2011-07-02 2012-10-11 Kennametal Inc. Schaftwerkzeug, Werkzeughalterung für ein Schaftwerkzeug sowie Reduzierhülse für eine Werkzeughalterung
EP2832478A1 (fr) * 2013-07-29 2015-02-04 Schunk GmbH & Co. KG Spann- und Greiftechnik Système de connexion et douille intermédiaire et kit doté d'une douille intermédiaire et d'une vis d'arrêt destinée à être utilisée dans un tel système de connexion
DE102014101122B3 (de) * 2014-01-30 2015-05-28 Gühring KG Hydraulik-Dehnspannvorrichtung für ein Werkzeug

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019058973A (ja) * 2017-09-26 2019-04-18 エヌティーツール株式会社 工具保持具
US11045883B2 (en) * 2019-07-11 2021-06-29 Shin-Yain Industrial Co., Ltd. Collet assembly of improved stability and collet thereof
CN112305622A (zh) * 2019-08-02 2021-02-02 中国石油化工股份有限公司 电阻率成像装置
CN112305622B (zh) * 2019-08-02 2024-05-24 中国石油化工股份有限公司 电阻率成像装置

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