EP2839928A1 - Étau centrant - Google Patents

Étau centrant Download PDF

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Publication number
EP2839928A1
EP2839928A1 EP20140175351 EP14175351A EP2839928A1 EP 2839928 A1 EP2839928 A1 EP 2839928A1 EP 20140175351 EP20140175351 EP 20140175351 EP 14175351 A EP14175351 A EP 14175351A EP 2839928 A1 EP2839928 A1 EP 2839928A1
Authority
EP
European Patent Office
Prior art keywords
runners
jaw carrier
zentrischspanner
jaw
threaded
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
EP20140175351
Other languages
German (de)
English (en)
Other versions
EP2839928B1 (fr
Inventor
Eduard Schweigert
Stefan Balletshofer
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.)
Roehm GmbH Darmstadt
Original Assignee
Roehm GmbH Darmstadt
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 Roehm GmbH Darmstadt filed Critical Roehm GmbH Darmstadt
Priority to PL14175351T priority Critical patent/PL2839928T3/pl
Publication of EP2839928A1 publication Critical patent/EP2839928A1/fr
Application granted granted Critical
Publication of EP2839928B1 publication Critical patent/EP2839928B1/fr
Not-in-force 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
    • B25B1/02—Vices with sliding 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
    • B25B1/06—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

Definitions

  • the invention relates to a Zentrischspanner for centric clamping of workpieces, having a longitudinal axis having a base support on which a first jaw carrier guided by a first carriage and a second jaw carrier by a second carriage and adjustable by means of a spindle drive along an oriented parallel to the first longitudinal axis adjustment path are stored.
  • Zentrischspanner are already known from the prior art and, for example, in the EP 1 946 890 A1 shown.
  • Zentrischspannern it has proved to be disadvantageous that in this case the available clamping range constitutes only a small part of the basic carrier.
  • a minimum area for guiding the jaw carriers must be provided on the base support. This in turn has the consequence that in a Zentrischspanner, which should have a large clamping range, the basic carrier must be very large dimensions.
  • centric tensioners known from the prior art require either to provide several centric clamps with different clamping widths or to use very large basic supports.
  • the object of the present invention is therefore to reduce the aforementioned disadvantages and to provide a compact Zentrischspanner having a large clamping range.
  • first runners and the second runners are assigned a congruent central axis.
  • the second runners can intervene in the collapse of the jaw carrier in the first runners, whereby workpieces of different sizes can be easily clamped and - due to the fact resulting symmetrical arrangement - also the width of the base support can be made very narrow.
  • the central axes of the first runners and the second runners are shifted from each other.
  • the base carrier is assigned a pair of rails for guiding the first runners and / or the second runners. This makes it possible to guide both the first runners and the second runners directly to the rails. This allows a guided and therefore safer movement of the jaw carriers connected to the runners. In the context of the invention, however, it is also envisaged that only one runners are guided on the rails, and that the other runners are in turn guided to one runners. In this way, in particular, an extremely compact basic carrier can be used.
  • first runners are each guided on the side of the rails that is repellent to the longitudinal axis, and if the second runners are respectively guided on the side of the rails facing the longitudinal axis.
  • first runners are each guided on the side of the rails that is repellent to the longitudinal axis
  • second runners are respectively guided on the side of the rails facing the longitudinal axis.
  • the rails are T-shaped, and when the first runners and the second skids are assigned to form a guide contact with the rails corresponding guide grooves.
  • the jaw carriers can be easily inserted into the T-shaped rails and are then securely connected to the rails. This will open up effectively reduces the number of translational degrees of freedom to one.
  • the rails have a cross section which deviates from the T-shaped form.
  • the spindle drive is formed by a spindle rod which has a first region with a left-hand thread and a second region with a right-handed thread, and threaded bushings assigned by the first back support and the second back support.
  • the spindle rod is assigned a receptacle for a tool that adjusts the jaw carrier.
  • the Zentrischspanner invention can be easily operated by hand, and it is also provided in the invention, that the adjustment of the jaw carrier is supported by means of a drive.
  • a simplified installation of the centric tensioner according to the invention can be realized in particular when the first jaw carrier and / or the second jaw carriers are assigned a plurality of threaded seats for receiving bolts used for fastening the threaded jacks.
  • the threaded bushes can be subsequently screwed onto the spindle rod and can then be screwed by the screws in the formed in the jaw carriers threaded receptacles.
  • a simple change possibility of the spindle drive is provided in order to replace it, if this is required for wear.
  • first jaw carrier and the second jaw carrier are each assigned interchangeable jaws.
  • the clamping jaws can each be adapted to the workpiece to be clamped.
  • the clamping jaws are assigned special clamping contours to increase the security of clamping.
  • FIG. 1 shows a perspective view of a centric clamp according to the invention 1 with a base support 2, on which a first jaw carrier 3 and second jaw carrier 4 are adjustably mounted by means of a spindle drive 5 along a parallel to a longitudinal axis 6 oriented adjustment 7.
  • the first jaw carrier 3 is guided on the base support 2 by a first slide 8 and the second jaw support 4 by a second slide 9.
  • the first carriage 8 is a pair of first runners 10 and the second carriage 9 is associated with a pair of second runners 11, wherein the difference between the track width of the first runners 10 and the track width of the second runners 11 is greater than the width of the second runners eleventh
  • the track widths of the first runners 10 and the second runners 11 are defined in each case by the distance between the runners 10, 11.
  • the central axes of the first runners 10 and the second runners 11 are congruent.
  • the base support 2 are associated with two T-shaped rails 12, on which the first runners 10 and the second runners 11 are guided.
  • the first runners 10 are guided in each case on the longitudinal axis 6 repellent sides of the rails 12 and the second runners 11 are each guided on the longitudinal axis 6 facing sides of the rails 12.
  • the first runners 10 and the second runners 11 are each assigned guide grooves 13 for forming a guide contact.
  • the spindle drive 5, which serves to adjust the jaw carriers 3, 4, is formed by a spindle rod 14 and by the jaw carriers 3, 4 associated threaded sockets 15.
  • the spindle rod 14 has a first region with a left-hand thread 16 and a second region with a right-hand thread 17. Due to the opposing course of the threads 16, 17 formed on the spindle rod 14, an actuation of the spindle drive 5 results in a simultaneous and opposite adjustment of the jaw carriers 3, 4.
  • the threaded bushes 15 are screwed in the embodiment shown by means of screws 18 in the jaw carriers 3, 4, which are associated with a plurality of threaded receptacles, in which the attachment of the threaded bushes 15 serving screws 18 can be screwed.
  • screws 18 in the jaw carriers 3, 4 which are associated with a plurality of threaded receptacles, in which the attachment of the threaded bushes 15 serving screws 18 can be screwed.
  • Long holes 19 are formed, which allow a relative rotation between the threaded bushing 15 and the second jaw carrier 4.
  • the threaded bushing 15 is first introduced with its external thread 25 into a jaw carrier thread 24 of the jaw carrier 4.
  • the threaded bushing 15 is screwed to the jaw carrier 4 by means of an external thread 25 formed on the threaded bushing 15, which interacts with the jaw carrier thread 24 formed as an internal thread.
  • the jaw carrier 4 is placed on the rails 12 while the spindle rod 14 is screwed into the threaded bushing 15.
  • the screws 18 are inserted into the slots 19 and easily screwed into the trained in the second jaw carrier 4 threaded seats or even biased such that the threaded bushing 15 can still rotate relative to the jaw carrier 4.
  • the threaded bushing 15 is rotated by the desired amount relative to the jaw carrier 4.
  • the screws 18 can be screwed in the slots 19 and in the formed in the second jaw carrier 4 threaded holes.
  • the threaded bushing 15 is firmly connected to the second jaw carrier.
  • the spindle rod 14 is rotatably and axially non-displaceably mounted on a bearing device 20 arranged centrally on the base support 2, in order to be able to derive the forces acting on the base support 2 during the tensioning.
  • FIG. 2 It can be seen that a rotated by 180 ° view of the in FIG. 1 shown view, the spindle rod 14 is also a Receiving 21 associated with the jaw carrier 3, 4 adjusting tool. For actuation of the spindle drive 5 so a suitable tool can be used in the receptacle 21 to rotate the spindle rod 14. Also from the FIG. 2 it is apparent that the jaw carriers 3, 4 changeable jaws 22 are assigned.
  • the different widths of the track widths of the first runners 10 and the second runners 11 become clear, the track widths being selected such that the difference between the track width of the first runners 10 and the track width of the second runners 11 is greater Due to the different track widths and the appropriate width of the second runners 11, it is possible that during an adjustment of the jaw carrier 3, 4 towards each other, the second runners 11 can move into the first runners 10, since the first skids 10 and the second skids 11 do not interfere with each other due to the different gauges. From the in the FIG. 4 It can also be seen that the first runners 10 and the second runners 12 are congruent Have center axes, which are also congruent with the longitudinal axis 6 in the embodiment shown.
  • FIG. 5 shows in a perspective view of the centric clamp according to the invention 1 with mutually shifted jaw carrier 3, 4. This is also particularly clear that due to the different gauges of the first skids 10 and the second runners 11, they can be moved into each other to the jaws 22 of the first Back support 3 to zoom to the second jaw carrier 4 zoom.
  • FIG. 6 shows in a plan view of the centric tensioner 1 according to the invention with partially moved jaws 3, 4.
  • the different gauges of the first runners 10 and the second skids 11 a compact design of the base support is possible because the second skids 11 - during the operation of the spindle drive 5 and the associated adjustment of the jaw carrier 3, 4 toward each other - can now engage in the first runners 10. In this way, it is also ensured, in particular, that the skids of the first carriage 8 and of the second carriage 9 do not interfere with their adjustment along the adjustment path 7.
  • the storage of the spindle rod 14 at the center of the base support 2 arranged storage device 20 can be seen.
  • the Figure 7.1 shows a T-shaped rail 12 formed, on which the first runner 10 is guided on the longitudinal axis 6 repellent side of the rail 12.
  • the second runner 11 in turn is guided on the side of the rail 12 facing the longitudinal axis 6.
  • the runners 10, 11 are each associated with guide grooves 13 which engage around the T-shaped profile of the rail so as to limit the mobility of the jaw carriers 3, 4 to only one degree of translational freedom.
  • FIG. 7.2 a detail view of a second embodiment of the rail 12 according to the invention is shown.
  • the rail has a profile that of the in the Figure 7.1 deviates shown T-shaped figure.
  • both the first runner 10 and the second runner 11 are guided on the side of the rail 12 which is repellent to the longitudinal axis 6.
  • two guide grooves 13 are formed on the longitudinal axis 6 repellent side of the rail 12, in each of which the first runner 10 and the second runner 11 can engage, which are assigned for this purpose horizontally extending guide rails 23.
  • Figure 7.2 can be seen, of course, also in the in the Figure 7.2 illustrated embodiment of the rail 12, the difference between the track width of the first runners 10 and the track width of the second skids 11 is greater than the width of the second skids 11th

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Gripping On Spindles (AREA)
  • Clamps And Clips (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
EP14175351.7A 2013-08-22 2014-07-02 Étau centrant Not-in-force EP2839928B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14175351T PL2839928T3 (pl) 2013-08-22 2014-07-02 Naprężacz centryczny

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202013103810U DE202013103810U1 (de) 2013-08-22 2013-08-22 Zentrischspanner

Publications (2)

Publication Number Publication Date
EP2839928A1 true EP2839928A1 (fr) 2015-02-25
EP2839928B1 EP2839928B1 (fr) 2015-11-18

Family

ID=49290596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14175351.7A Not-in-force EP2839928B1 (fr) 2013-08-22 2014-07-02 Étau centrant

Country Status (7)

Country Link
US (1) US9296089B2 (fr)
EP (1) EP2839928B1 (fr)
JP (1) JP2015039770A (fr)
BR (1) BR102014018209A2 (fr)
DE (1) DE202013103810U1 (fr)
ES (1) ES2555508T3 (fr)
PL (1) PL2839928T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016113848A1 (de) * 2016-07-27 2018-02-01 Röhm Gmbh Verfahren zum Herstellen einer Spannbacke sowie entsprechend gefertigte Spannbacke
CN108296815A (zh) * 2017-12-22 2018-07-20 天津顺兴捷科技有限责任公司 一种管材钻孔夹紧上料装置
CN109128535A (zh) * 2017-06-13 2019-01-04 浙江伟星实业发展股份有限公司 一种纽扣定位装置
DE102020107967A1 (de) 2020-03-23 2021-09-23 Ralf Klerks Spannvorrichtung

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20100218U1 (it) * 2010-06-25 2011-12-26 Elesa Spa Pinza per il supporto di pannelli
US9744634B2 (en) * 2013-07-01 2017-08-29 Dick PLANK Support for workpieces
ES2561665B1 (es) * 2014-09-15 2016-12-14 Universidad De Jaén Soporte universal para dianas y placas portaprisma topográficos
USD777548S1 (en) * 2014-10-06 2017-01-31 Octa Llc Clamp
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
IT201600101554A1 (it) * 2016-10-11 2018-04-11 Alma Tech S R L Dispositivo di serraggio di pezzi in lavorazione
CN107571064A (zh) * 2017-10-12 2018-01-12 广东东方精工科技股份有限公司 一种长齿轮轴的固定装置
KR101913547B1 (ko) * 2018-07-09 2018-10-30 이강국 바이스모듈
US11383354B1 (en) 2018-09-06 2022-07-12 Jergens, Inc. Vise
DE202018106466U1 (de) * 2018-11-14 2020-02-21 MEBEA Maschinenbau GmbH Spannvorrichtung
DE102019110477A1 (de) 2019-04-23 2020-10-29 Bonertz Lizenzverwaltungs GmbH Spannvorrichtung
AT17990U1 (de) * 2020-01-23 2023-09-15 Ring Tobias Eingriffselement und Spannsystem
TWI785835B (zh) * 2021-10-07 2022-12-01 林長毅 中心虎鉗

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FR552607A (fr) * 1922-06-07 1923-05-04 Paperin Chassin & Fils étau tournant, à pied, à mors parallèle, réglable en hauteur
EP1946890A1 (fr) 2007-01-18 2008-07-23 Lang Technik GmbH Tendeur de centrage
WO2008151860A1 (fr) * 2007-06-13 2008-12-18 Gressel Ag Dispositif de serrage

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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR339186A (fr) * 1903-11-25 1904-12-27 Thuillier Et Dague Soc étau parallèle
FR552607A (fr) * 1922-06-07 1923-05-04 Paperin Chassin & Fils étau tournant, à pied, à mors parallèle, réglable en hauteur
EP1946890A1 (fr) 2007-01-18 2008-07-23 Lang Technik GmbH Tendeur de centrage
WO2008151860A1 (fr) * 2007-06-13 2008-12-18 Gressel Ag Dispositif de serrage

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016113848A1 (de) * 2016-07-27 2018-02-01 Röhm Gmbh Verfahren zum Herstellen einer Spannbacke sowie entsprechend gefertigte Spannbacke
CN109128535A (zh) * 2017-06-13 2019-01-04 浙江伟星实业发展股份有限公司 一种纽扣定位装置
CN108296815A (zh) * 2017-12-22 2018-07-20 天津顺兴捷科技有限责任公司 一种管材钻孔夹紧上料装置
DE102020107967A1 (de) 2020-03-23 2021-09-23 Ralf Klerks Spannvorrichtung
WO2021191198A1 (fr) 2020-03-23 2021-09-30 Ralf Klerks Dispositif de serrage

Also Published As

Publication number Publication date
JP2015039770A (ja) 2015-03-02
PL2839928T3 (pl) 2016-04-29
US9296089B2 (en) 2016-03-29
DE202013103810U1 (de) 2013-09-04
BR102014018209A2 (pt) 2015-09-29
EP2839928B1 (fr) 2015-11-18
ES2555508T3 (es) 2016-01-04
US20150054210A1 (en) 2015-02-26

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