EP2977145A1 - Dispositif de serrage central - Google Patents

Dispositif de serrage central Download PDF

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Publication number
EP2977145A1
EP2977145A1 EP15174952.0A EP15174952A EP2977145A1 EP 2977145 A1 EP2977145 A1 EP 2977145A1 EP 15174952 A EP15174952 A EP 15174952A EP 2977145 A1 EP2977145 A1 EP 2977145A1
Authority
EP
European Patent Office
Prior art keywords
bearing
clamping device
base body
centric
spindle
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.)
Granted
Application number
EP15174952.0A
Other languages
German (de)
English (en)
Other versions
EP2977145B2 (fr
EP2977145B1 (fr
Inventor
Marcel Schlüssel
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.)
Gressel AG
Original Assignee
Gressel AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=53785410&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2977145(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gressel AG filed Critical Gressel AG
Publication of EP2977145A1 publication Critical patent/EP2977145A1/fr
Application granted granted Critical
Publication of EP2977145B1 publication Critical patent/EP2977145B1/fr
Publication of EP2977145B2 publication Critical patent/EP2977145B2/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • B25B1/103—Arrangements for positively actuating jaws using screws with one screw perpendicular to the jaw faces, e.g. a differential or telescopic screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2489—Slideways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2484—Supports

Definitions

  • the invention relates to a centric clamping device according to the preamble of patent claim 1.
  • Centric tensioners usually have a e.g. On a machine table aufspannbaren body, two on the body via longitudinal guides slidably guided clamping jaws and an adjusting spindle for the opposite adjustment of the two jaws on. With the help of the adjusting spindle, the jaws displaceably arranged on the base body can be moved apart and together at the same time, whereby a centric clamping of workpieces is made possible.
  • a generic centric clamping device known. This has a base body, two slidably guided on the base body clamping jaws and rotatably mounted on the base body by means of a spindle bearing adjusting spindle for the opposite adjustment of the two jaws.
  • the spindle bearing is in this known clamping device of a fastened by screws on the main body bearing piece, which contains a cup-shaped bearing web for engagement in an annular groove of the adjusting spindle.
  • U1 discloses a clamping device with a base body and two clamping jaws, which are arranged opposite to each other on the base body and guided along a common axis towards and away from each other adjustable.
  • the DE 10 2013 104 467 A1 discloses a Zentrischspanner in which two mutually adjustable clamping jaws are guided displaceably on a base body.
  • the clamping jaws are adjustable via a rotatably mounted in a central bearing block threaded spindle.
  • the DE 297 23 435 U1 discloses a centric clamping device with two linearly guided against each other movable clamping slide.
  • the adjustment of the clamping carriage is effected by a rotatably mounted within a bearing block threaded spindle having opposite threaded portions at both ends for engagement in threaded nuts of two pistons.
  • a clamping device with a fixedly arranged on a main body first jaw and an adjustable guided on the base second jaw known.
  • the second clamping jaw is adjustable by means of a arranged in a spindle recess of the main body screw.
  • the spindle recess of the base body is covered by a cover element between the two clamping jaws over the entire adjustment range of the clamping jaws.
  • the DE 10 2007 027 808 B3 relates to a clamping device in which the carriers of the clamping jaws are designed as shells enclosing the adjusting spindle.
  • the object of the invention is to provide a centric clamping device of the type mentioned, which contains an optimally protected against contamination spindle bearing with high accuracy.
  • the spindle bearing is housed in a bearing block and has two bearing sleeves axially adjustable within the bearing block. Due to the axial adjustment of the two bearing sleeves not only axial position of the adjusting spindle can be adjusted with respect to the body, via a mutual adjustment of the two bearing sleeves, the spindle bearing can also be biased and adjusted without play. This achieves high precision and good repeatability.
  • the adjusting spindle is completely covered and sealed over the bearing block in the storage area. The centric clamping device is therefore insensitive to chips and the adjusting spindle is protected against contamination in a closed system.
  • the spindle bearing can be designed as a roller bearing with a plurality of rolling elements guided between the bearing sleeves and the adjusting spindle.
  • the adjusting spindle can be used for this purpose, e.g. two spaced-apart annular grooves for internally supporting the e.g. Having trained as balls Wälzköper.
  • the two bearing sleeves may each contain a shoulder-shaped bearing surface for the outside bearing of the Wälzköper at the facing end faces. By mutual clamping of the two bearing sleeves, the shoulder-shaped bearing surfaces can be brought to bear against the balls and thus a possible backlash-free adjustment can be achieved.
  • the spindle bearing could also be designed as a plain bearing with axially adjustable plain bearing sleeves.
  • a simple axial adjustment of the bearing sleeves can be achieved in that the two bearing sleeves each have an external thread for engagement in a corresponding internal thread extending through the bearing block passage opening.
  • the bearing block closed over the entire circumference can be formed integrally with the base body.
  • An optimized chip discharge can be achieved in that passages extending from the recesses between the bearing block and two side cheeks of the main body are arranged to the outside with inclined bottom surfaces.
  • the two clamping jaws can be adjusted via slidably guided in the main body slide.
  • the slides can be installed in the body so that there is a protected against dirt and insensitive to chips construction.
  • the adjusting spindle expediently has two external threads designed as right-handed or left-handed threads for engagement with corresponding internal threads on through-holes of the two slides.
  • the jaws are preferably releasably secured to the slides. As a result, the jaws can be replaced if necessary and adapted to the respective clamping task.
  • the jaws can have any shape.
  • the in the FIGS. 1 to 4 shown in different views centric clamping device includes a base body 1, on which two clamping jaws 2 and 3 slidably guided via slides 4 and 5 and are adjustable in opposite directions by an adjusting mechanism with an adjusting spindle 6.
  • the base body 1 has two spaced side cheeks 7 and 8 with upper guide surfaces 9 and 10.
  • the two guide surfaces 9 and 10 are executed on a hardened and ground upper part of the two side cheeks 7 and 8 of the main body 1.
  • the guide surfaces 9 and 10 can also be arranged on separate and replaceable if necessary guide rails or guide rails.
  • the two slides 4 and 5 are fitted and guided displaceably.
  • the slides 4 and 5 have a stepped cross-section with an upper bearing surface 11.
  • FIG. 4 It can be seen, in the upper bearing surface 11 of the two slides 4 and 5 each seen in the longitudinal direction of the body 1 successive recesses 12 and 13 for the positive engagement of a bottom of the jaws 2 and 3 downwardly projecting projection 14 is arranged. This allows the jaws 2 and 3 offset inwards or outwards and through in FIG. 3 recognizable screws 15 are fixed to the respective slide 4 and 5 positionally accurate.
  • the clamping jaws 2 and 3 can have any shape adapted to the respective clamping task. In the embodiment shown, the clamping jaws 2 and 3 are designed as turning jaws with different clamping surfaces. By turning the jaws 2 and 3 so the clamping range can be easily extended or changed.
  • an upwardly and to the side closed bearing block 16 for supporting the adjusting spindle 6 is arranged between the two side cheeks 7 and 8.
  • the two slides 4 and 5 have at the mutually facing end faces a recess 17 or a cover for receiving the bearing block 16 and for covering the adjusting spindle 6.
  • the two slides 4 and 5 can be pushed together to cover the adjusting spindle 6 above the bearing block 16.
  • the adjusting spindle 6 is covered and the chips are deflected.
  • the adjusting spindle 6 is rotatable about its longitudinal axis and secured in the axial direction by a spindle bearing 18 which will be explained in more detail below.
  • the adjusting spindle 6 mounted centrally within the bearing block 16 has a relative to the base body 1 and the slider 5 outwardly projecting and here provided with an external hexagonal actuating pin 19 and two designed as right- or left-hand thread 20 and 21 for engagement with corresponding internal threads 22 and 23 at through holes 24 and 25 of the two slides 4 and 5 contains.
  • the two slides 4 and 5 can be displaced in opposite directions and the clamping jaws 2 and 3 can thus be moved together or apart at the same time.
  • annular sealing elements 26 the two slides 4 and 5 are sealed at their mutually facing end faces relative to the adjusting spindle 6.
  • the in FIG. 5 bearing block 16 shown in detail is embodied integrally with the main body 1 in the embodiment shown and includes a passage opening 27 running in the longitudinal direction of the main body 1, in which the spindle bearing 18 is accommodated for the adjusting spindle 6.
  • the spindle bearing 18 comprises two axially adjustable within the passage opening 27 arranged bearing sleeves 28 and 29, in which the adjusting spindle 6 is rotatably mounted.
  • the adjusting spindle 6 includes a central annular collar 30 and two provided on the right and left of the annular collar 30 annular grooves 31 and 32, in which over the circumference of the adjusting spindle 6 distributed rolling elements 33 are mounted.
  • the two bearing sleeves 28 and 29 each have an external thread 34 for engagement in a corresponding internal thread 35 of the through hole 27 and contain at the facing end faces each have a shoulder-shaped bearing surface 36 on which the inside guided in the two annular grooves 31 and 32 and here as Balls trained rolling elements 33 outside to the plant reach.
  • FIGS. 7 and 8 the arranged between the two side walls of the base body 1 central bearing block 16 is shown in a cross section.
  • recesses 37 are provided with counterbores 38 for attachment of the base body 1 on a machine table or the like.
  • outwardly leading passages 39 are arranged with sloping bottom surfaces 40.
  • the two clamping jaws 2 and 3 are formed as turning jaws and have on one side straight and on the other side stepped clamping surfaces. By turning the jaws 2 and 3 so the clamping area on easy way to be extended. But the jaws 2 and 3 can also have any other, adapted to the respective clamping task, shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Machine Tool Units (AREA)
  • Clamps And Clips (AREA)
EP15174952.0A 2014-07-23 2015-07-02 Dispositif de serrage central Active EP2977145B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014110352.1A DE102014110352B3 (de) 2014-07-23 2014-07-23 Zentrisch-Spannvorrichtung

Publications (3)

Publication Number Publication Date
EP2977145A1 true EP2977145A1 (fr) 2016-01-27
EP2977145B1 EP2977145B1 (fr) 2017-05-10
EP2977145B2 EP2977145B2 (fr) 2022-10-26

Family

ID=53785410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15174952.0A Active EP2977145B2 (fr) 2014-07-23 2015-07-02 Dispositif de serrage central

Country Status (3)

Country Link
US (1) US9962812B2 (fr)
EP (1) EP2977145B2 (fr)
DE (1) DE102014110352B3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106737302A (zh) * 2017-01-22 2017-05-31 高密宏泰机床制造有限公司 浮动式夹具
DE102017122112A1 (de) * 2017-09-25 2019-03-28 Thiemo Kretzschmar Schraubstockvorrichtung
CZ308696B6 (cs) * 2016-02-24 2021-03-03 Protechnik S.R.O. Strojní svěrák s modulárním systémem upínání
WO2023247057A1 (fr) * 2022-06-24 2023-12-28 Hemo Ag Dispositif de serrage central pour maintenir par serrage des pièces à usiner

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11666997B1 (en) * 2015-11-18 2023-06-06 Elijah Tooling, Inc. Precision locating fastening device
JP6674805B2 (ja) * 2016-03-16 2020-04-01 株式会社ナベヤ センタリング調整機能付きマシンバイス
DE102016117420B3 (de) 2016-09-15 2018-03-01 Allmatic-Jakob Spannsysteme Gmbh Spannantrieb und Zentrischspannsystem
ES2698703A1 (es) * 2017-08-04 2019-02-05 Fresmak Sa Dispositivo de sujeción de piezas
HUE059206T2 (hu) * 2019-01-28 2022-10-28 Oml Srl Szorítóeszköz, nevezetesen egy csavarkulcs
US11667012B1 (en) * 2019-03-21 2023-06-06 Kurt Manufacturing Company, Inc. Self-centering dual direction clamping vise with adjustable center support
DE102020101064B3 (de) * 2020-01-17 2021-03-18 Lang Technik Gmbh Werkstückspannvorrichtung
DE102021117229B4 (de) * 2021-07-05 2024-12-05 Lang Technik Gmbh Spannvorrichtung und Verfahren zur Handhabung eines Werkstücks
TWI785835B (zh) * 2021-10-07 2022-12-01 林長毅 中心虎鉗

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19717467A1 (de) * 1996-04-26 1998-04-23 Kohn Spannwerkzeuge Mechanisch Spannstock
DE29723435U1 (de) 1997-08-30 1998-08-27 Hico Himmel & Co KG, 78727 Oberndorf Vorrichtung zum zentrierten Spannen von Werkstücken o.dgl.
AT3049U1 (de) * 1997-08-30 1999-09-27 Hico Himmel & Co Kg Vorrichtung zum zentrierten spannen von werkstücken oder dergleichen
DE202004009517U1 (de) 2004-06-17 2004-10-14 Schunk GmbH & Co. KG Fabrik für Spann- und Greiftechnik Spanneinrichtung
EP1688219A1 (fr) 2005-06-15 2006-08-09 HB-Feinmechanik GmbH & Co.KG Dispositif de serrage avec élément de couverture pour l'évidement contenant sa broche
DE102007027808B3 (de) 2007-06-13 2008-08-14 Gressel Ag Spannvorrichtung
EP2143526A1 (fr) * 2008-07-11 2010-01-13 Dieter Mosig Dispositif de serrage doté de moyens de rinçage
DE102013104467A1 (de) 2012-11-09 2014-06-12 Raphael Rogenmoser Zentrierspanner
DE102012112755A1 (de) 2012-12-20 2014-06-26 Gressel Ag Zentrisch-Spannvorrichtung

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DE3026158A1 (de) 1980-07-10 1982-02-04 Victor Göteborg Crail Vorrichtung zum schnellen verschieben und blockieren von einem oder mehreren beweglichen teilen
GB2088496B (en) * 1980-11-29 1985-05-15 Smith Bernard Locking mechanism for screws and shafts
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FR2792567B3 (fr) 1999-04-22 2001-06-08 Sagop Etau de serrage
DE102004040360A1 (de) 2004-08-20 2006-02-23 Ina-Schaeffler Kg Kugelgewindetrieb
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Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19717467A1 (de) * 1996-04-26 1998-04-23 Kohn Spannwerkzeuge Mechanisch Spannstock
DE29723435U1 (de) 1997-08-30 1998-08-27 Hico Himmel & Co KG, 78727 Oberndorf Vorrichtung zum zentrierten Spannen von Werkstücken o.dgl.
AT3049U1 (de) * 1997-08-30 1999-09-27 Hico Himmel & Co Kg Vorrichtung zum zentrierten spannen von werkstücken oder dergleichen
DE202004009517U1 (de) 2004-06-17 2004-10-14 Schunk GmbH & Co. KG Fabrik für Spann- und Greiftechnik Spanneinrichtung
EP1688219A1 (fr) 2005-06-15 2006-08-09 HB-Feinmechanik GmbH & Co.KG Dispositif de serrage avec élément de couverture pour l'évidement contenant sa broche
DE102007027808B3 (de) 2007-06-13 2008-08-14 Gressel Ag Spannvorrichtung
EP2143526A1 (fr) * 2008-07-11 2010-01-13 Dieter Mosig Dispositif de serrage doté de moyens de rinçage
DE102013104467A1 (de) 2012-11-09 2014-06-12 Raphael Rogenmoser Zentrierspanner
DE102012112755A1 (de) 2012-12-20 2014-06-26 Gressel Ag Zentrisch-Spannvorrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ308696B6 (cs) * 2016-02-24 2021-03-03 Protechnik S.R.O. Strojní svěrák s modulárním systémem upínání
CN106737302A (zh) * 2017-01-22 2017-05-31 高密宏泰机床制造有限公司 浮动式夹具
CN106737302B (zh) * 2017-01-22 2019-08-27 高密宏泰机床制造有限公司 浮动式夹具
DE102017122112A1 (de) * 2017-09-25 2019-03-28 Thiemo Kretzschmar Schraubstockvorrichtung
DE102017122112B4 (de) 2017-09-25 2021-12-09 Lang Technik Gmbh Schraubstockvorrichtung
WO2023247057A1 (fr) * 2022-06-24 2023-12-28 Hemo Ag Dispositif de serrage central pour maintenir par serrage des pièces à usiner

Also Published As

Publication number Publication date
DE102014110352B3 (de) 2015-10-08
EP2977145B2 (fr) 2022-10-26
US20160023329A1 (en) 2016-01-28
US9962812B2 (en) 2018-05-08
EP2977145B1 (fr) 2017-05-10

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