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WO2019158590A1 - Dispositif tendeur - Google Patents

Dispositif tendeur Download PDF

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Publication number
WO2019158590A1
WO2019158590A1 PCT/EP2019/053554 EP2019053554W WO2019158590A1 WO 2019158590 A1 WO2019158590 A1 WO 2019158590A1 EP 2019053554 W EP2019053554 W EP 2019053554W WO 2019158590 A1 WO2019158590 A1 WO 2019158590A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
clamping device
bore
pull rod
holder
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/EP2019/053554
Other languages
German (de)
English (en)
Inventor
Reiner Ruggaber
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.)
Ruwi GmbH
Original Assignee
Ruwi GmbH
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 Ruwi GmbH filed Critical Ruwi GmbH
Priority to DE112019000774.2T priority Critical patent/DE112019000774A5/de
Publication of WO2019158590A1 publication Critical patent/WO2019158590A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/18—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles
    • F16B2/185—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles using levers

Definitions

  • the invention relates to a clamping device for clamping a work object, in particular an auxiliary tool or workpiece, on a perforated worktop with an insertable from above into a bore of the worktop clamping anchor, and one by means of an outside of the bore actuator unit from one end operable pull rod for pulling the clamping anchor in a non-positive clamping position in the bore.
  • WO 2013/139537 discloses a device for clamping a component on a mounting profile by means of a clamping anchor.
  • the clamping anchor has a sliding block which engages behind a profile groove of the mounting profile in the clamping position.
  • Welding tables are also suitable as work surfaces, in which a large number of round bores are arranged in a uniform grid dimension in order to enable the clamping of work objects.
  • it is proposed in DE-A 10 2014 011 309 to use a bolt which has tiltable Kip piata from the bolt body, which are actuated by an actuating means of a bolt end.
  • the disadvantage is that the device comprises a large number of parts whose manufacture and maintenance is complicated, and that the required handling by means of a tool wrench is not particularly user-friendly. Proceeding from this, the object of the invention is to further improve the clamping devices or clamping systems for perforated plates known in the prior art and to provide a simple, fast and flexible operation as well as reliable fixation in different clamping situations.
  • the invention is based on the idea of using a clamping anchor with wedge adjustment. Accordingly, it is proposed according to the invention that the clamping armature has two wedge cylinders which are obliquely cut off against one another against wedge inclines, which are radially displaceable relative to one another by axial contraction by means of the drawbar and can be clamped in the bore, the clamping armature being in the clamping position a counterbearer partially overlapping the bore is axially supported as part of the clamping device.
  • the wedge movement high clamping forces can be applied, which due to the axial support by a counter-holder element a particularly effective implementation in a radial clamping can be achieved.
  • such a wedge anchor In the unbiased starting situation, such a wedge anchor can be immersed in a bore without any particular effort, the fixing being effected via axial movement is then possible from above the working surface, as it were, in the twinkling of an eye and finely dosed.
  • tolerances in the hole diameter can be easily compensated.
  • the upper wedge cylinder advantageously bears with its end face lying in the opening of the bore against a facing abutment surface of the counter-holder, so that an evasive upward movement is reliably avoided.
  • the counter-holder is formed by a lying over the bore portion of the work object. As a result, a surface lying in the plane of the worktop can be used for the direct locking of the clamping anchor.
  • the counter-holder has an opening for the passage of the tie rod.
  • a further improvement envisages that the counterholder, which is penetrated by the pull rod, can be displaced laterally on the work surface, so that the opening of the bore can be covered variably.
  • Such a configuration can be realized in particular in stop modules in that the counter-holder is formed by a flat bar provided with a longitudinal slot, wherein the longitudinal slot has a lateral insertion opening for the drawbar.
  • the counter-holder is formed by a hook element which can be hooked in laterally in a profile groove of a profile rail as a work object. Due to the profile, a simple longitudinal displacement is possible, while over the clamping anchor a simple clamping in the desired position can be done.
  • the counter-holder is formed by a base plate of a quick-release clamp, which allows a simple and flexible clamping of components.
  • the actuating unit has a tool operated by a user Flandhabungsmittel, in particular an eccentric lever or a knurled nut for axial movement of the drawbar.
  • the actuating unit is height-adjustable via an actuating unit, which is preferably formed by adjusting means which can be screwed into one another.
  • the actuating unit which is arranged in the easily accessible working area above the worktop, by means of an abutment, it is pre-teiolike when the counter-holder has a support element for supporting the operating unit.
  • the support element is formed by a perforated annular disc whose outer diameter is greater than the diameter of the bore in the worktop.
  • tie rod axially slidably passes through the upper wedge cylinder with radial play and is held axially firmly on the lower wedge cylinder.
  • a further advantageous embodiment provides that an axial bore of the clamping armature accommodating the pull rod is widened radially by a groove-shaped recess running through both wedge cylinders, and that a spring ring inserted with a spoke inserted through the pull rod is arranged in the recess.
  • Another aspect of the invention comprises a clamping device in which the clamping armature has two wedge-shaped obliquely cut against each other wedge slopes wedge cylinder, which are axially displaceable against each other by axial contraction by means of the tie rod, wherein the clamping anchor by a height-adjustable support member on the work surface or one on it arranged working object is supported.
  • the device itself can form the work object in the form of a stop for a workpiece to be machined.
  • the support element is formed by an adjusting ring, which is axially displaceable and releasably fixable on a hollow wedge which faces the upper wedge cylinder and is penetrated by the pull rod.
  • the height of the clamping armature can be adjusted with respect to the worktop with little handling.
  • a further improvement results from the fact that the support element can be fixed in a selected height position by means of a clamping screw, and that the support element can be adjusted in height over an adjustment range of more than 5 cm.
  • an overarching counterholder is not absolutely necessary here; Rather, it is sufficient if a breakthrough in the work object in the clamping position with the bore of the worktop is arranged in alignment or overlapping.
  • the actuating unit has a rotational lever fixedly connected to the upper end of the drawbar, and if a lower threaded portion of the drawbar engages in a complementary internal thread of the lower wedge cylinder.
  • a spring element in particular a disc spring, is arranged on the upper wedge cylinder.
  • the wedge cylinder protrude in the clamping position over more than half of their maximum height or common cylinder length from the worktop down. In this way, a large mutual wedge surface investment is created while at the same time a reliable fixation is possible even in a small hole depth of the countertop.
  • One aspect of the invention also relates to a quick-action clamping system having a worktop, preferably perforated in a raster pattern, a work object which can be placed thereon and a clamping device according to the invention specified above for positioning the work object on the worktop.
  • FIG. 1 shows a clamping device for clamping in a perforated worktop in a perspective view
  • Fig. 2 the tensioned in the worktop clamping device of Figure 1 in axial section.
  • FIGS. 3 and 4 a further embodiment of the clamping device with knurled nut for clamping operation in FIGS. 1 and 2 corresponding representation;
  • 5 shows a further embodiment of a clamping device for fixing a profile rail on a perforated worktop in a perspective view;
  • 6 shows the clamping device of FIG. 5 clamped in connection with the profiled rail, in axial section;
  • FIG. 7 shows a further embodiment of the tensioning device in connection with a tensioning clamp in a perspective view
  • FIG. 8 shows, in axial section, the clamping device of FIG. 7 clamped in connection with the clamp on the worktop;
  • the tensioning device 10 shown in the drawing comprises a clamping anchor 16 formed from two diagonally cut wedge cylinders 12, 14, a drawbar 18 connected at one end to the clamping anchor 16, an actuation unit 20 confirmable from the other end of the drawbar 18 and having a counter-holder 22 for overlapping and axial support of the clamping anchor 16.
  • the actuating unit 20 has an eccentric lever 24, which can be actuated without tools by a user, for axial movement of the pull rod 18.
  • An actuator 26 allows a height adjustment of the confirmation unit 20 with a corresponding increase in the clamping anchor 16.
  • the actuating unit 26 comprises an outer sleeve 28 and an inner sleeve 30, which are screwed into one another.
  • the clamping anchor 16 can be introduced from above into a bore 32 of a perforated working plate 34 in order to clamp thereon a work object 36, for example a positioning rail, firmly and without special handling effort.
  • the work object 36 acts here as a mediating part of the counter-holder 22 in that a lower abutment surface 38 rests directly on the end face 40 of the upper wedge cylinder 12 in order to support it directly axially.
  • the clamping anchor 16 can thus be brought into a force-locking clamping position in the bore 32, wherein the wedge cylinders 12, 14 at their abutting, at an angle in the range of, for example 40 ° to 50 ° relative to the cylinder axis obliquely employed Complemen-
  • axial tapering can be radially adjusted relative to one another.
  • the lower end 44 of the drawbar 28 is fixedly secured in the lower wedge cylinder 14 via a glued screw connection, while the axial bore 46 has a radial excess in the region of the upper wedge cylinder 12 in relation to the pull rod 18 that a limited sliding movement on the wedge slope 42 is possible.
  • the axial limitation by the contact surface 38 ensures effective implementation in a radial deflection movement of the upper wedge cylinder 12, whereby high clamping forces can be achieved.
  • the axial bore 46 is radially widened by a groove-shaped recess 47 extending through both wedge cylinders 12, 14. In the groove 47 a traversed by the pull rod 18 spring ring 49 is arranged so that the upper wedge cylinder 12 is held limitedly movable on the lower wedge cylinder 14.
  • the upper end 48 of the drawbar 16 is seated firmly in a pivot pin of the eccentric lever 24.
  • This is mounted eccentrically on a rotatable about the axis of the pull rod 18 sliding disk 50, so that he bring in an ergonomically favorable rotational position and then to exercise the train - force can be transferred.
  • a knurled collar 52 of the adjusting screw 30 allows a height adjustment adapted to the wall thickness of the working object 36.
  • the work object 36 may have an opening 54 which allows the clamping anchor 16 to be passed through. Appropriately, the work object 36 is then moved laterally to position the lower abutment surface 38 above the upper wedge cylinder.
  • the counter-holder 22 has a support member 56 in the form of a perforated ring writing, whose outer diameter is in any case greater than the diameter of the bore 32 in the work surface 34.
  • the opening 54 in the work object 36 is formed by a narrow slot into which the pull rod 18 can be introduced via a lateral inlet opening (not shown).
  • the clamping device 10 only on the support member 56 on the work surface 34th is supported while a work object 36 is created elsewhere or spanned.
  • the tensioning device in FIGS. 3 and 4 differs essentially only in that the confirmation unit has a cylindrical knurled nut 58 instead of an eccentric lever for the axial adjustment of the pull rod 18.
  • the manually operable knurled nut 58 has an axially continuous threaded bore 60 which is threadable onto the upper threaded portion 62 of the drawbar 16 to adjust for fleas to the strength of the clamped work object 36 and exert an axial tensile force on it allow lower wedge cylinder 14.
  • An Allen insert 64 on the knurled nut 58 inserted at the end allows the use of a corresponding tool key, in order to be able to apply an increased torque for particularly high clamping forces, if necessary.
  • FIG. 3 and 4 shows an embodiment of a clamping device 10 for clamping a trained as a profile rail work object 36.
  • a hook member 66 is provided, which is inserted behind with a laterally projecting nose 68 in a profile groove 70 of the rail.
  • the hook element 66 has a receiving contour for the setting unit 26, on which the eccentric lever 24 is supported as an operating unit 20.
  • the latter is connected to the clamping anchor 16 via the pull rod 18, the hook element 66, with its perforated contact surface 38, acting as a counter-holder 22 for the clamping anchor 16.
  • the height of the nose 68 is dimensioned such that in the clamping position, a tension of the rail against the surface of the worktop 34 is effected.
  • the counter-holder 22 is formed by the base plate 72 of a quick-action clamp 74 which can be tensioned on the work surface 34 as an auxiliary tool.
  • This has a toggle mechanism 76 for manual actuation of a clamping head 78.
  • actuating unit 20 a cylinder head screw is provided, the head of which is rotatable by means of an Allen wrench and whose shaft forms the pull rod 18 for the clamping anchor 16.
  • the clamping anchor 16 can be supported by a height-adjustable support element 56 'on the work surface 34 or on a work object 36 to be tensioned on the work surface at a variable height.
  • the support element 56 'by a radially slotted Jus- animal ring 80 formed on a the upper wedge cylinder 12 frontally facing and penetrated by the pull rod 18 hollow pin 82 is axially displaceable and releasably fixed in a selected height position by means of clamping screw 84.
  • Adjustment range from 0 to 7.5 cm be provided.
  • the continuous height adjustment of the adjusting ring 80 makes it possible, the clamping device 10th itself as a stop on a perforated worktop 34 set, or to clamp a work object 36 or more superimposed Häob- projects 36.
  • Suitable working objects 36 have bores 54 or longitudinal slots, which coincide with the bores 32 of the work surface 34 precisely, so that in the clamping position, a mutually aligned arrangement is possible, as shown in Fig. 10.
  • a further special feature consists in that the actuating unit 20 has a rotary lever 24 connected in a rotationally fixed manner to the upper end of the drawbar 18 and which is rotatable about a vertical axis.
  • a lower threaded portion 88 of the drawbar 18 engages a complementary internal thread 90 of the lower wedge cylinder 14 and, when rotated, provides for a corresponding axial movement which then results in the wedge tension.
  • a screw nut 92 is adhesively fixed on the threaded portion 88 as a captive, with some clearance between glued nut 92 and lower wedge cylinder 14 to make sure that the clamping armature 16 can rotate freely in the screw 88,90.
  • the wedge cylinders 12, 14 are held in the clamping position on a comparatively thin worktop 34 and protrude downwardly from the worktop 34 over more than half their maximum height (ie, their common cylinder length) ,
  • a spring element in the form of a plate spring 94 is disposed on the upper wedge cylinder 12. This causes after the distortion of the Clamping anchor 16 an additional advantageous "Nachdrück bin" of the support member 56 'on the work object 36. At the same time, the clamping effect by the plate spring 94 is maintained.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

L'invention concerne un dispositif tendeur servant à installer sous tension un objet de travail (36), en particulier un outil auxiliaire ou une pièce, sur une plaque de travail (34) perforée avec un système d'ancrage par serrage (16) pouvant être introduit dans un alésage (32) de la plaque de travail (34) et avec une barre de traction (18) pouvant être actionnée au moyen d'une unité d'actionnement (20) disposée à l'extérieur de l'alésage (32), servant à tirer le système d'ancrage par serrage (16) dans une position de serrage à force. L'invention propose que le système d'ancrage par serrage (16) comporte deux cylindres de calage (12, 14) tronqués de manière oblique sur des biseaux de calage (42) à l'encontre les uns des autres, lesquels cylindres de calage peuvent être ajustés radialement les uns à l'encontre des autres par un resserrement axial au moyen de la barre de traction (18). Le système d'ancrage par serrage (16) est soutenu axialement dans la position de serrage sur un contre-support (22) surmontant l'alésage (32).
PCT/EP2019/053554 2018-02-13 2019-02-13 Dispositif tendeur Ceased WO2019158590A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112019000774.2T DE112019000774A5 (de) 2018-02-13 2019-02-13 Spannvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018103161.0 2018-02-13
DE102018103161.0A DE102018103161A1 (de) 2018-02-13 2018-02-13 Spannvorrichtung zum Aufspannen eines Arbeitsobjekts

Publications (1)

Publication Number Publication Date
WO2019158590A1 true WO2019158590A1 (fr) 2019-08-22

Family

ID=65433671

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/053554 Ceased WO2019158590A1 (fr) 2018-02-13 2019-02-13 Dispositif tendeur

Country Status (2)

Country Link
DE (2) DE102018103161A1 (fr)
WO (1) WO2019158590A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110834173A (zh) * 2019-11-15 2020-02-25 格力电器（武汉）有限公司 一种铜过滤器定位工装
EP4180675A1 (fr) 2021-11-12 2023-05-17 Norelem SAS Dispositif de serrage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN218111782U (zh) * 2020-10-23 2022-12-23 伍鐌科技股份有限公司 接合结构及接合模块
DE102024105756A1 (de) * 2024-02-29 2025-09-04 Bayerische Motoren Werke Aktiengesellschaft Zentrier- und/oder Führungsvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6044673A (en) * 1998-11-11 2000-04-04 Inter-Pacific Services (1996) Ltd. Locomotive controller lockout device
US20090252570A1 (en) * 2008-03-10 2009-10-08 Lee Robin C Bench anchor
WO2013139537A1 (fr) 2012-03-19 2013-09-26 Reiner Ruggaber Dispositif de serrage
DE102014011309A1 (de) 2014-08-04 2016-02-04 Bernd Siegmund Bolzen zum Verspannen aneinander liegender Teile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6044673A (en) * 1998-11-11 2000-04-04 Inter-Pacific Services (1996) Ltd. Locomotive controller lockout device
US20090252570A1 (en) * 2008-03-10 2009-10-08 Lee Robin C Bench anchor
WO2013139537A1 (fr) 2012-03-19 2013-09-26 Reiner Ruggaber Dispositif de serrage
DE102014011309A1 (de) 2014-08-04 2016-02-04 Bernd Siegmund Bolzen zum Verspannen aneinander liegender Teile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110834173A (zh) * 2019-11-15 2020-02-25 格力电器（武汉）有限公司 一种铜过滤器定位工装
EP4180675A1 (fr) 2021-11-12 2023-05-17 Norelem SAS Dispositif de serrage
FR3129184A1 (fr) 2021-11-12 2023-05-19 Norelem Sas Dispositif de serrage

Also Published As

Publication number Publication date
DE102018103161A1 (de) 2019-08-14
DE112019000774A5 (de) 2020-10-29

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