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WO2009091299A1 - Raccord - Google Patents

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Info

Publication number
WO2009091299A1
WO2009091299A1 PCT/SE2008/000722 SE2008000722W WO2009091299A1 WO 2009091299 A1 WO2009091299 A1 WO 2009091299A1 SE 2008000722 W SE2008000722 W SE 2008000722W WO 2009091299 A1 WO2009091299 A1 WO 2009091299A1
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
material pieces
clamping surfaces
clamping
tube
Prior art date
Application number
PCT/SE2008/000722
Other languages
English (en)
Inventor
Karl-Otto Strömberg
Original Assignee
Flexprop Ab
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 Flexprop Ab filed Critical Flexprop Ab
Publication of WO2009091299A1 publication Critical patent/WO2009091299A1/fr

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
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/065—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using screw-thread elements
    • 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
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
    • 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
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
    • F16B7/048—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof
    • F16B7/0493—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof forming a crossed-over connection

Definitions

  • the present invention relates to a coupling for securing at least one tube or one profile and comprises a first and a second part, which each display at least a first set of clamping surfaces for cooperation with the tube or the profile, as well as clamping devices for fixedly clamping the clamping surfaces against the tube or the profile.
  • the present invention also relates to a method of producing a coupling for securing at least one tube or one profile.
  • holders are often used on which grippers are mounted for cooperation with the individual workpiece. These holders are often called manipulators.
  • geometrically controlling manipulators and non- geometrically controlling manipulators.
  • these are of a highly stringent nature concerning geometrically controlling manipulators and may amount to one or a few tenths of a millimetre, while a greater degree of inaccuracy as regards non-geometrically controlling manipulators may be permitted.
  • a planar sheet blank is fed by means of some form of feeder which is provided with manipulator and gripper which feeds in the sheets into the first press included in the press line.
  • a second feeder which may be a specifically designed feeder or a generally usable industrial robot.
  • This feeder or robot is also provided with a manipulator with grippers which transfer the workpiece from the first to the second press included in the press line.
  • the manipulator on the feeder or robot may be of the non- geometrically controlling design. If, however, there are no such guide means in the press tool in the second press, the feeder or robot and the associated manipulator must position in an extremely accurate manner the workpiece in the press tool in the second press.
  • a workstation where, for example, a plurality of body parts is assembled by welding procedures.
  • a stationary holder in which the different workpieces are placed.
  • Such a stationary holder may also be called a platform.
  • universally applicable robots may be used which, in such instance, are provided with manipulators and grippers or end effectors.
  • these are often constructed as a framework system composed of aluminium tubes.
  • For joining together these aluminium tubes use is generally made of couplings which are often of the same material.
  • Manipulators produced in this manner are relatively light in weight (compared with steel constructions) but often suffer from excessive fragility so that considerable flexion may occur under load. In a rapidly operating feeder or robot, this is not acceptable, since such flexion involves a risk of oscillation phenomena which jeopardise the accurate positioning of the workpiece.
  • tube or profile material holders of the type under consideration here where the tube or profile material consists of composite material, preferably carbon fibre composite.
  • composite material preferably carbon fibre composite.
  • Such a material possesses considerably greater rigidity than aluminium and also a density which is considerably lower, approximately half. If such material is employed, it is naturally most expedient if the couplings that are employed for interconnecting the manipulator also possess corresponding qualities.
  • the present invention has for its object to design the coupling intimated by way of introduction so that it will be of extremely light weight, high precision as a result of the absence of clearance or play, as well as extremely high mechanical strength, principally rigidity. Further, the present invention has for it object to design the coupling intimated by way of introduction so that it may be opened, for example for adjustment or reuse, and that it may be produced at reasonable cost.
  • the present invention has for its object to formulate the method so as to attain the corresponding objects.
  • the coupling is characterised in that the clamping surfaces are edge surfaces on substantially planar, flat-shaped material pieces, that the first and the second part include substantially planar, flat-shaped material pieces, and that the material pieces are interconnected to one another, on the one hand by the intermediary of glue union, and on the other hand by the intermediary of mechanical coupling devices.
  • the objects of the present invention will be attained if the method is characterised in that, starting from planar, sheet-shaped material, planar material pieces included in the coupling are cut out, that certain material pieces are provided with recesses whose edge surfaces are formed into clamping surfaces for cooperation with the tube or profile, that at least certain of the material pieces are provided with mutually fitting projections or pins and recesses or apertures, respectively, that the geometric configuration of the coupling is established by fitting of the projections or the pins into corresponding recesses or apertures, and that couplings are finally joined together by gluing.
  • Fig. 1 is a perspective view of a first embodiment of the coupling according to the present invention
  • Fig. 2 is an exploded view of the coupling of Fig. 1 ;
  • Fig. 3 is an exploded view of a second part of the coupling of Fig. 1, together with a detail magnification;
  • Fig. 4 is a perspective view of a second embodiment of the coupling according to the present invention.
  • Fig. 5 is a perspective view of a second part included in the coupling of Fig. 4, together with a detail magnification;
  • Fig. 6 shows the second part according to Fig. 5 in exploded view and detail magnification
  • Fig. 7 is a perspective view of a first part included in the coupling of Fig. 4, together with a detail magnification;
  • Fig. 8 is a perspective view of a third embodiment of the coupling according to the present invention.
  • Fig. 9 is an exploded view of the coupling according to Fig. 8. DESCRIPTION OF PREFERRED EMBODIMENT
  • the fundamental principle lying behind the coupling according to the present invention is that it is composed of a number of planar material pieces which are cut out from a sheet-shaped material, consisting of a composite, preferably a carbon fibre composite.
  • the cutting-out of the material pieces included in the coupling may be put into effect in any optional manner, but, according to the present invention, water cutting has proved to give extremely good accuracy.
  • the coupling is provided with mechanical coupling devices which, in one preferred embodiment, consist of projections or pins fitting in recesses or apertures. These mechanical coupling devices are designed so as to define together the geometric configuration of the coupling and to make possible an assembly of the coupling to a coherent unit which withstands handling without "falling apart”.
  • a glue union is employed for the final union of the material pieces included in the coupling.
  • the coupling illustrated in Fig. 1 has a first part 1 and a second part 2 which are compressible against one another by means of clamping devices in the form of screws 3.
  • the coupling is formed so as to cooperate with a tube or a profile, as a rule a circular- cylindrical tube of carbon fibre composite, and to be secured on some type of holder, which may be a manipulator or part thereof.
  • the first and second parts are composed of a number of planar material pieces consisting of a carbon fibre composite, which is a material displaying low density and an extremely high level of mechanical strength, above all rigidity.
  • the first part 1 and the second part 2 together define a through-going accommodation space which has a longitudinal centre line 4 and which is intended for accommodating the tube or the profile.
  • both the first part 1 and the second part 2 are formed as box structures which each comprise four peripheral material pieces 5 and 6. These peripheral material pieces form a rectangular or square frame, where the sides are parallel with a common line. Transversely directed in relation to this line, possibly at right angles in relation thereto, the first part 1 and the second part 2 have transverse material pieces 7.
  • Two opposing material pieces 5 each in the first and second parts display recesses, whose edge surfaces 8 form clamping surfaces for cooperation with the tube or the profile in the accommodation space.
  • peripheral material pieces 6 display pins 13 which are intended to be accommodated in corresponding recesses 14 in the transverse material piece 7.
  • transverse material piece 7 in the first part 1 has elongate apertures through which extend upper portions or projections 15 on the material pieces 5 and 9 provided with clamping surfaces.
  • the second part 2 of the coupling which is shown undermost in Fig. 2, is constructed and composed in fundamentally the same manner as the first part 1.
  • the counterparts to the projections 15 on the first part are, in the second part 2, planar on the underside, since the lower side of the transverse material piece 6 in the Figure must be able to abut against a planar surface, possibly the plate 16 illustrated in Fig. 2.
  • the projections 10 and recesses 12 have changed place in the second part compared with the first.
  • a further difference in detail is that the inner material pieces 9 provided with clamping surfaces 8 display pins 17 which are accommodated in corresponding apertures 18 in the transverse part 7 instead of the elongate projections 15 in the first part (see Fig. 3).
  • the inner material pieces 9 provided with clamping surfaces 8 are disposed on both the first and the second part. In the longitudinal direction of the line 4, these material pieces are placed so that they are located very proximal one another when the first and second parts are assembled together so that a guiding along the line 4 may thereby be realised.
  • Fig. 2 there are provided columns 19 in the corners of the coupling, which may be provided with threaded or through-going openings for screws, for example the screws 3.
  • the columns 19 display such cross section that they extend out into the corner regions of both the first and the second part in order to guide these parts in relation to one another.
  • Fig. 1 It will be apparent from Fig. 1 that the first and the second parts 1 and 2, respectively abut against one another with mutually facing surfaces on the peripheral material pieces 5 and 6.
  • the clamping surfaces 8 are formed in such a manner that the cross sectional configuration of the through-going aperture which extends through the coupling is identical with the outer contour of the tube or the profile with which the coupling is intended to cooperate.
  • the clamping force of the screws 3 is at least partly taken up by the peripheral material pieces, a profile or a tube placed in the accommodation space would probably be insufficiently fixed in place.
  • the coupling according to the present invention has, in addition to the mechanical coupling devices, which thus include projections or pins fitted into corresponding recesses or apertures, a final union consisting of a glue union.
  • glue unions may be achieved either simultaneously with the "assembly" of the material pieces included in the coupling, or subsequently.
  • Fig. 4 is a perspective view of a second embodiment of the coupling according to the present invention.
  • This embodiment is intended to interconnect two mutually intersecting tubes or profiles which lie in different planes in relation to one another. However, like the embodiment according to Fig. 1 , it may be secured on a manipulator.
  • the coupling has accommodation spaces with longitudinal axes 20 and 21, which intersect one another and which lie in separate planes. Possibly, the angle between the longitudinal axes 20 and 21 may be a right angle.
  • the coupling according to Figs. 4 to 7 has uppermost a first part 1, centrally a second part 2 and lowermost a new first part 1. Both of the first parts 1 are identical to that described with reference to Figs. 2 and 3 and will not, therefore, be described further here.
  • the second part 2 has counterparts to the above- described columns 19 which are provided with waists (not shown on the Drawings) which extend through recesses 25 shown in Fig. 6 in the transverse material piece 24.
  • the columns 19 are, in the manner described above, fixedly glued in the final phase in the peripheral material pieces 22 and the transverse material piece 24.
  • Figs. 8 and 9 show a third embodiment of the coupling according to the present invention.
  • the coupling has a first part 1 and a second part 2, between which there are defined, on the one hand a through-going accommodation space with a centre line 30 and, on the other hand an accommodation space closed at its one end and displaying a centre line 31.
  • the coupling according to Figs. 8 and 9 may therefore be characterised as a T- coupling.
  • Both the first part 1 and the second part 2 display elongate, peripheral material pieces 26 each with a clamping surface 8. Further, the coupling displays in its one short end peripheral material pieces 27, each with a clamping surface 8.
  • both the first and the second parts have, in relation to the peripheral material pieces 27, two opposing peripheral material pieces 28 which lack clamping surfaces.
  • Both the first and the second parts 1 and 2, respectively, have transverse material pieces 7 which, in the embodiment under consideration here, are rectangular rather than square.
  • the coupling there are inner material pieces disposed interiorly at the through- going accommodation space with centre line 30 and provided with clamping surfaces, these material pieces corresponding to the material pieces 9 according to Fig. 1.
  • the accommodation space is defined with the centre line 31 and clamping surfaces 8 disposed on inner material pieces 32 which are parallel with the peripheral material pieces 27.
  • the coupling according to Figs. 8 and 9 displays columns 19, of which at least some are disposed at the corner regions of the coupling for supporting them.
  • the columns 19 have threaded or through-going bores for screws.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

Raccord permettant de fixer à demeure un tube qui comporte une première (1) et une seconde (2) parties présentant chacune un premier ensemble de surfaces de serrage (8) coopérant avec le tube, ainsi que des dispositifs de serrage permettant de serrer à demeure les surfaces de serrage sur le tube. Les surfaces de serrage (8) sont constituées par des surfaces périphériques sur des pièces extérieures planes et plates (5, 22) ainsi que sur d'autres pièces intérieures planes et plates (9), lesdites pièces étant reliées les unes aux autres par une liaison collées d'une part, par des parties saillantes ou des pions s'encastrant dans des creux ou des ouvertures d'autre part. Le procédé de fabrication du support consister à découper, dans un matériau lamellaire plan et plat, des pièces lamellaires planes intérieures incluses dans le raccord dont les surfaces périphériques constituent des surfaces de serrage et dont certaines comportent des parties saillantes ou des pions et des creux ou ouvertures s'encastrant mutuellement les uns dans les autres, la configuration du raccord étant déterminée par l'encastrement des parties saillantes ou des doigts dans des creux ou des ouvertures correspondants, et le raccordement final s'effectuant par collage.
PCT/SE2008/000722 2008-01-17 2008-12-18 Raccord WO2009091299A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0800110-9 2008-01-17
SE0800110A SE531909C2 (sv) 2008-01-17 2008-01-17 Koppling för fastsättning på rör eller profil samt metod för dess framställning

Publications (1)

Publication Number Publication Date
WO2009091299A1 true WO2009091299A1 (fr) 2009-07-23

Family

ID=40885516

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2008/000722 WO2009091299A1 (fr) 2008-01-17 2008-12-18 Raccord

Country Status (2)

Country Link
SE (1) SE531909C2 (fr)
WO (1) WO2009091299A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2913535A1 (fr) * 2014-02-26 2015-09-02 Hans-Georg Engbarth Support d'antennes
EP2913536A1 (fr) * 2014-02-26 2015-09-02 Hans-Georg Engbarth Support d'antennes
EP3239538A1 (fr) * 2016-04-27 2017-11-01 Bilsing Automation GmbH Élément de serrage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB737693A (en) * 1953-02-13 1955-09-28 Wharton & Wilcocks Ltd Improvements relating to jigs and fixtures
ES340401A1 (es) * 1966-05-12 1968-10-01 Scheer & Cie C F Un dispositivo de pinza de empalme para unir reciprocamen- te, al menos, dos barras tubulares de soporte y de guia.
US3860351A (en) * 1973-11-19 1975-01-14 White Machine Co Brace clamp
US20060115321A1 (en) * 2004-12-01 2006-06-01 Giuseppe Maffeis Multivalent section for making frames, supports, supporting structures and the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB737693A (en) * 1953-02-13 1955-09-28 Wharton & Wilcocks Ltd Improvements relating to jigs and fixtures
ES340401A1 (es) * 1966-05-12 1968-10-01 Scheer & Cie C F Un dispositivo de pinza de empalme para unir reciprocamen- te, al menos, dos barras tubulares de soporte y de guia.
US3860351A (en) * 1973-11-19 1975-01-14 White Machine Co Brace clamp
US20060115321A1 (en) * 2004-12-01 2006-06-01 Giuseppe Maffeis Multivalent section for making frames, supports, supporting structures and the like

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2913535A1 (fr) * 2014-02-26 2015-09-02 Hans-Georg Engbarth Support d'antennes
EP2913536A1 (fr) * 2014-02-26 2015-09-02 Hans-Georg Engbarth Support d'antennes
EP2913887A1 (fr) * 2014-02-26 2015-09-02 Hans-Georg Engbarth Support d'antennes
EP3239538A1 (fr) * 2016-04-27 2017-11-01 Bilsing Automation GmbH Élément de serrage

Also Published As

Publication number Publication date
SE531909C2 (sv) 2009-09-08
SE0800110L (sv) 2009-07-18

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