EP2162262A1 - Serre-joints et procédé de production d'un serre-joints - Google Patents

Serre-joints et procédé de production d'un serre-joints

Info

Publication number
EP2162262A1
EP2162262A1 EP08785884A EP08785884A EP2162262A1 EP 2162262 A1 EP2162262 A1 EP 2162262A1 EP 08785884 A EP08785884 A EP 08785884A EP 08785884 A EP08785884 A EP 08785884A EP 2162262 A1 EP2162262 A1 EP 2162262A1
Authority
EP
European Patent Office
Prior art keywords
slide rail
fixed bracket
pressure piece
clamp according
fixed
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
EP08785884A
Other languages
German (de)
English (en)
Other versions
EP2162262B1 (fr
Inventor
Thomas Klein
Hans RÖSCHE
Gerhard KLÖPFER
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.)
Bessey Tool GmbH and Co KG
Original Assignee
Bessey Tool GmbH 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 Bessey Tool GmbH and Co KG filed Critical Bessey Tool GmbH and Co KG
Publication of EP2162262A1 publication Critical patent/EP2162262A1/fr
Application granted granted Critical
Publication of EP2162262B1 publication Critical patent/EP2162262B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B25B5/102—Arrangements for positively actuating jaws using screws with at least one jaw sliding along a bar
    • 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
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/163—Jaws or jaw attachments

Definitions

  • the invention relates to a ferrule comprising a slide rail of metaili cal material, a movable on the slide Gfeitbügei, a fixed bracket made of a metallic material which is fixedly mounted on the slide, and a pressure piece for a workpiece, which is arranged on the fixed bracket , wherein the slide rail and the fixed bracket are integrally connected.
  • the invention relates to a method for the manufacture of a ferrule.
  • a tension clamp with a rail for guiding a tensioning mechanism carrying a slide and a stoffstofflichlich cohesively formed from the same profile Festbügei is known, rail and fixed bracket are connected to each other via a bent knee and substantially at a right angle to stand by each other.
  • a C-shaped clamp for clamping workpieces with a C-shaped ferrule bow, arranged at one end of the Zwingenbogens spindle nut, a mounted in the spindle nut clamping spindle and arranged at the lower end of the Zwingenbogen supports is known ,
  • the Zwingenbogen has a guide portion with guide surfaces for guiding steplessly adjustable additional elements for the C-shaped ferrule.
  • EP 0 070 400 A2 discloses a surface-tensioning screw clamp with a guide rail, on which a fixed bracket extending transversely to it is arranged, and a sliding bar which is approximately parallel thereto is displaceably guided. It is provided a nut thread for an approximately parallel to the guide rail extending screw in a first of the two brackets. Furthermore, two clamping surface shoes are provided, of which the one on the second of the two straps! and the other on one on the screw spindle in particular rotatably mounted, plate-shaped cap with mutually facing clamping surfaces and about the plane of the two brackets vertical axes is arranged tilted.
  • the invention has for its object to provide a ferrule of the type mentioned, which can be easily manufactured.
  • the pressure piece is a separate part of the fixed bracket, which is fixed positively and / or non-positively on the fixed bracket.
  • the slide rail in its profiling can be produced together with the fixed bracket by cold forming, such as cold drawing or cold rolling.
  • the cold-formed material has significantly increased strength values compared to a material in the material state. If the Gleitschie ⁇ e and the fixed bracket are integrally connected, this combination can be produced in a simple manner by bending.
  • the pressure piece When clamping one or more workpieces, the pressure piece experiences essentially only a compressive force. The stronger load and in particular also tensile forces and bending forces experienced by the fixed bracket.
  • the one-piece fixation on the GleitInene results in a high stability with optimized power dissipation.
  • a ferrule is provided which can be manufactured in a simple and cost-effective manner.
  • the pressure piece is fixed by compression on the fixed bracket. This results in a simple fixability with secure hold of the pressure piece.
  • the pressure piece is fixed in particular in a form-fitting manner by latching or by pinning or screwing to the fixed bracket.
  • the pressure piece is fixed to the fixed bracket by a method which does not cause any structure-changing heating of the Festbügels required.
  • the clamp according to the invention can be produced in a simple manner.
  • the fixed bracket is produced on the longitudinal rail by bending. From a corresponding (and in particular already profiled) Vorelement can then be in a bending machine of the fixed bracket, which is oriented curved transversely to the slide, hers inconvenience. A subsequent fixation of a separately produced fixed bracket on the slide is then no longer necessary.
  • the fixed bracket has a convexly curved outer side and a concavely curved inner side.
  • Such a fixed bracket can be produced in a simple manner on a profiled rail, wherein the slide rail, which is substantially straight, and the fixed bracket, which is curved, can then be formed on the profiled rail.
  • Such Gleitschiene- FestbügeJ combination can be made of a straight rail, which is made by cold deformation and has a corresponding profile produce.
  • the fixed bracket comprises at least one area which is (circularly) ring-segment-shaped.
  • the fixed bracket can be produced in a simple manner by bending on a bending machine.
  • the Gieitschiene is straight. This allows the sliding bar to run on the slide rail.
  • the combination of Gieitschiene and fixed bracket is made by cold deformation.
  • the corresponding profile bar to which the fixed bar is later manufactured, for example, by bending is made by cold rolling or cold drawing an endless belt (such as a steel belt).
  • an upper shell level of the slide rail and an upper shell level of the fixed bracket coincide. Furthermore fall in particular a lower Hüschene the Gieitschiene and a lower Hüllebene the Festbügels together. By flat bending the Festbügei can be produced on the slide rail.
  • the pressure piece and the counter-pressure piece have substantially parallel contact surfaces for a workpiece in order to allow a defined clamping.
  • the clamping device comprises (at least) a clamping screw, which is guided on a thread of the sliding bracket. By tilting the slide bar on the slide this can be fixed during clamping of one or more workpieces between the pressure piece of the counter-pressure piece. By the clamping screw can exert a corresponding clamping force.
  • Other configurations of the clamping device such as eccentric or lever clamps are possible.
  • an axis of rotation of the clamping screw hits the pressure piece. As a result, a force with a force direction, which is coaxial with the direction of rotation, can be selectively exerted.
  • the pressure piece has a contact area with a contact surface for a workpiece and a fixing area for fixing to the fixed bar.
  • a fixation area the connection of the pressure piece with the fixed bracket.
  • the contact area provides the contact surface for the workpiece.
  • the pressure piece is cap-shaped with a receiving space for a Festbügel Scheme.
  • the pressure piece can be placed on the fixed bracket via the receiving space and, for example, pressed with this in order to hold the pressure piece positively and / or non-positively on the fixing area.
  • a correspondingly large "inner" contact surface is provided for the press fit of the pressure piece to the fixing region.
  • the pressure piece is held over the fixing area alone or in addition via form-locking elements such as screws or the like.
  • form-locking elements such as screws or the like.
  • Other possibilities of positive locking such as locking or pinning are possible.
  • the pressure piece on a contact area which extends into the vicinity of the GleitInene or to the slide rail or extends into an area of the fixed bracket in the vicinity of the track rail.
  • an enlarged contact area is provided. Since the pressure piece is separated from the fixing area, the contact surface of the pressure piece does not have to follow the shape of the fixed bracket. This can be used to increase the contact surface.
  • the contact area is fixed to the slide rail or to the area of the fixed bracket in the vicinity of the slide rail. This increases the stability.
  • the fixation is positive and / or non-positive, so that no fixation-changing (and thus strength-reducing) heating is necessary for the fixation.
  • the invention is further based on the object to provide a method for the production of a clamp, which can be carried out in a simple manner.
  • the object is achieved in that a pre-element for the slide and a Festbüge! be prepared by Kaitverformung on the Voreiement is produced by bending the fixed bracket and a pressure piece is positively and / or non-positively fixed to the fixed bracket.
  • the method according to the invention has the advantages already explained in connection with the ferrule according to the invention.
  • Figure 1 a perspective view of a first embodiment of a clamp according to the invention
  • FIG. 2 a plan view of the ferrule according to Figure 1;
  • FIG. 3 shows a view of the clamp according to FIG. 2 in the direction A;
  • FIG. 4 shows a view of the clamp according to FIG. 2 in the direction B;
  • FIG. 5 is a perspective view of a second embodiment of a clamp according to the invention.
  • FIG. 6 a plan view of the ferrule according to FIG. 5;
  • FIG. 7 shows a view of the ferrule according to FIG. 6 in the direction 8.
  • the embodiment of a clamp according to the invention which is shown in Figures 1 to 4 and designated therein by 10, is a screw clamp.
  • the screw clamp 10 includes a slide rail 12.
  • the slide rail 12 is made of a metallic material such as steel. It extends straight in a longitudinal direction 14 ( Figure 2).
  • An outer side 16 and an inner side 18 of the slide rail 12 are parallel to one another and parallel to the longitudinal direction 14.
  • the slide rail 12 is profiled. It points, for example, in the field of
  • the fixed bracket 22 Integral with the Gieitschiene 12 is a fixed bracket 22, which acts on a workpiece during clamping.
  • the fixed bracket 22 is a boom on the slide rail 12. This fixed bracket 22 projects beyond the outside 16 and the inside 18 of the slide rail 12 transversely.
  • the fixed bracket 22 itself has a convex outer side 24, which merges tangentially into the outer side 16 of the slide rail 12.
  • the fixed bracket 22 has a concave inner side 26, which merges tangentially into the inner side 18 of the slide rail 12.
  • the Festbügei 22 is made by bending on the slide rail 12; a profiled Voreiement of slide rail and fixed bracket, which is straight, is bent in a bending machine to herzus kind the fixed bracket 22 with the convex outer side 24 and the concave inner side 26.
  • the fixed bracket 22 has, for example, a circular ring segment 28. Other forms of curvature are possible.
  • the fixed bracket 22 has a front end 30. This has the same ProfÜquerrough as a front end 32 of the slide rail 12.
  • the front end 30 of the fixed bracket 22 is oriented at an angle to the longitudinal direction 14 of the slide rail 12, which, for example, on the order of 70 ° Hegt. This angle is indicated in Figure 2 by the reference numeral 34.
  • the angle 34 substantially corresponds to the angular range over which the Festbügei 22 extends when it is annular segment-shaped.
  • the slide rail 12 has an upper ceiling level 36 and a lower ceiling level 38 ( Figure 3).
  • the two HüNebenen 36 and 38 are substantially parallel to each other.
  • the outer side 16 and the inner side 18 are transversely and in particular perpendicular to the upper sleeve plane 36 and the Hüschene 38.
  • a corresponding upper Hüllebene the Festbügels 22 coincides with the upper Hüschene 36 and a corresponding lower Hüllebene the Festbügels 22 coincides with the lower Hüilebene 38th the slide rail 12 together.
  • the combination of profiled slide rail 12 and integrally connected with this festbüge! 22 is made by cold working of a metallic material and in particular by cold drawing or cold rolling.
  • the combination of slide rail 12 and fixed bracket 22 is made prior to the bending of the fixed bracket 22 of an endless strip material by cold drawing or cold rolling with their profiling.
  • the material of this combination is work hardened.
  • the curvature is chosen so that a "cold" bending without material heating on a bending machine is possible,
  • a fixing region 40 (FIG. 2) of the fixed yoke 22
  • a pressure piece 42 which is held on the fixing region 40 of the fixed yoke 22 via a fixing region 41 of the pressure piece 42.
  • the fixing region 40 is bounded by the end 30 of the Festbügefs 22.
  • the pressure piece 42 has a contact surface 44 for a workpiece.
  • This contact surface 44 is connected. It can also be multi-part. It is oriented transversely and in particular at least approximately perpendicular to the longitudinal direction 14 (and thus to the slide rail 12).
  • the pressure piece 42 is a separate from the Festbüget 22 element which is subsequently fixed to this.
  • the fixation is such that no heating of the fixed bracket 22 is necessary. Such heating can lead to a structural change in the structure of the fixed bracket 22 (and the sliding rail 12) produced by strain hardening.
  • the pressure piece 42 may be made of a metallic Materia! or be made for example of a plastic material.
  • the pressure piece 42 est fixed non-positively and / or positively to the Festbügei 22.
  • the pressure piece 42 has a receiving space 46 on the fixing region 41, with which it is attached to the fixing region 40 of the fixed bracket 22 (and in particular pressed) and is veriierêt pressed with this.
  • the pressure piece 42 is in particular cap-shaped, wherein it can be placed with the receiving space 46 in the manufacture of the screw clamp 10 on the fixed bracket 22.
  • a slide bar 48 is arranged on the slide rail 12. This includes a sliding portion 50 with a recess 52. Through the recess 52, the slide rail 12 is immersed.
  • the sliding bar 48 includes a threaded portion 54.
  • the threaded portion 54 has an internal thread 56, on which a clamping screw 58 is guided.
  • the clamping screw 58 is held on a handle element 60.
  • the grip element 60 is designed for holding with one hand. By rotation of the grip element 60, the clamping screw 58 is set in rotation about a rotation axis 62. Depending on the direction of rotation, a counterpressure piece 64 seated on a front end of the clamping screw is moved toward the pressure piece 42 or moved away from it.
  • the counterpressure piece 64 has a contact surface 66 for a workpiece, which is oriented transversely and in particular substantially perpendicular to the slide rail 12 (in its longitudinal direction 14). In particular, the contact surface 66 is aligned substantially parallel to the contact surface 44 of the pressure piece 42.
  • the counter-pressure piece 64 can be mounted pivotably on the clamping screw 58 in a certain range.
  • a kind of spherical bearing can be provided.
  • the slide bracket 12 further includes a bridge portion 68 between the sliding portion 50 and the threaded portion 54.
  • the bridge area 68 together men with the Gieit Scheme 50 and the threaded portion 54 has, for example, a flat side 70, which faces the fixed bracket 22 and is oriented at least approximately perpendicular to the Gieitschiene 12.
  • the bridge region 68 has a side 71 which is oriented at an angle of, for example, the order of magnitude of approximately 170 ° to the slide rail 12 (to its longitudinal direction 14).
  • the recess 52 of the Gleitbügels 48 is dimensioned so that the Gleitbüge! 48 can tilt on the slide rail 12 with the corrugation 20. As a result, then one or more workpieces between the pressure piece 42 and the counter-pressure piece 64 by tightening the clamping screw 58 are clamped.
  • the axis of rotation 82 strikes the contact surface 44 of the pressure piece 42.
  • a ferrule 10 is provided, which can be produced in a simple manner.
  • the fixed bracket 22, which is curved, is integrally arranged on the slide rail 12.
  • the corresponding profiled element can be produced in a simple manner by cold deformation, and the fixed bracket 22 is produced by bending.
  • a joint is basically a critical area under load. Such a critical range is avoided in the inventive solution.
  • the abutment surface 44 for one or more workpieces on the fixed bracket 22 is provided by the pressure piece 42. This is a separate from the fixed bracket 22 element, which is subsequently fixed to this. As a result, a sufficiently large and smooth contact surface 44 can be prepared, wherein no heating of the fixed bracket 22 is necessary for the production of the contact surface 44; Such heating may result in an undesirable structural change in a cold-formed fixed bracket 22.
  • the pressure piece 42 when a workpiece between a clamping device 72, which comprises the clamping screw 58 and the counter-pressure piece 64, and is clamped on the pressure piece 42, essentially only absorb pressure forces.
  • the integrally formed on the slide rail 12 fixed bracket 22 can absorb the corresponding tensile forces and bending forces.
  • a clamp such as a screw clamp, for example, which has the required mechanical stability and easy manufacturability.
  • the pressure piece 42 has the fixing region 41 and a contact region 74 on which the contact surface 44 is formed.
  • the contact region 74 can be designed so that, relative to a thickness direction of the slide rail 12 (between the upper lifting plane 36 and the lower sleeve plane 38), it has a greater width than the Fix istsbereumble 41. This can be a sufficiently large contact surface 44 and a provide contiguous bearing surface 44.
  • a second embodiment of a clamp which is shown in Figures 5 to 7 and denoted by 76 there, is also a screw clamp.
  • the screw clamp 76 is the same except for a pressure piece 78 as the screw clamp 10.
  • the same reference numerals are used for the same elements.
  • the pressure piece 78 has a fixing region 80 with a receiving space 82. About the receiving space 82, the pressure piece 78 is placed on the fixing portion 40 of the fixed bracket 22. In particular, the pressure piece 78 is pressed.
  • the pressure piece 78 further comprises a contact region 84, which sits on the fixing region 80 and in particular sits integrally thereon.
  • the contact region 84 extends from an upper end 86 of the pressure element 78, which has the greatest distance of the pressure element 78 to the Gleitsch ⁇ ene 12th has, up to an end 88, which lies over the slide rail 12.
  • a contact surface 90 is formed, which is single or multiple contiguous. This 6.3fiambae 90 is oriented transversely and in particular perpendicular to Gieitschiene 12. It points from the upper end 86 to the slide rail 12 and also over the inner side 18 of the Gieitschiene 12.
  • the pressure member 78 may be non-positively and / or positively connected to the slide rail 12.
  • the pressure piece 78 provides a contact surface 90, which points to the slide rail 12.
  • a recess 92 can be arranged in the region of the slide rail 12 in which a corresponding region 94 of the slide rail 12 lies at least partially.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Clamps And Clips (AREA)

Abstract

L'invention concerne un serre-joints comprenant une coulisse (12), un étrier coulissant (48) pouvant se déplacer sur la coulisse, un étrier fixe (22) constitué d'un matériau métallique, cet étrier fixe étant disposé de manière fixe sur la coulisse, ainsi qu'un élément de pression (42) destiné à comprimer une pièce, cet élément de pression étant placé sur l'étrier fixe. La coulisse et l'étrier fixe sont solidaires l'un de l'autre et l'élément de pression constitue un élément séparé de l'étrier fixe, ledit élément étant fixé à l'étrier fixe par complémentarité de forme et/ou assemblé par force à celui-ci.
EP08785884.1A 2007-07-04 2008-06-27 Serre-joints et procédé de production d'un serre-joints Active EP2162262B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007032146A DE102007032146A1 (de) 2007-07-04 2007-07-04 Zwinge und Verfahren zur Herstellung einer Zwinge
PCT/EP2008/058262 WO2009003939A1 (fr) 2007-07-04 2008-06-27 Serre-joints et procédé de production d'un serre-joints

Publications (2)

Publication Number Publication Date
EP2162262A1 true EP2162262A1 (fr) 2010-03-17
EP2162262B1 EP2162262B1 (fr) 2015-03-04

Family

ID=39846594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08785884.1A Active EP2162262B1 (fr) 2007-07-04 2008-06-27 Serre-joints et procédé de production d'un serre-joints

Country Status (8)

Country Link
US (1) US20100156015A1 (fr)
EP (1) EP2162262B1 (fr)
JP (1) JP2011524813A (fr)
CN (1) CN101795820A (fr)
AU (1) AU2008270425A1 (fr)
DE (1) DE102007032146A1 (fr)
NZ (1) NZ583060A (fr)
WO (1) WO2009003939A1 (fr)

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Also Published As

Publication number Publication date
NZ583060A (en) 2011-11-25
US20100156015A1 (en) 2010-06-24
CN101795820A (zh) 2010-08-04
EP2162262B1 (fr) 2015-03-04
JP2011524813A (ja) 2011-09-08
DE102007032146A1 (de) 2009-01-08
WO2009003939A1 (fr) 2009-01-08
AU2008270425A1 (en) 2009-01-08

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