EP0452791B1 - Outil de pressage - Google Patents

Outil de pressage Download PDF

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Publication number
EP0452791B1
EP0452791B1 EP91105663A EP91105663A EP0452791B1 EP 0452791 B1 EP0452791 B1 EP 0452791B1 EP 91105663 A EP91105663 A EP 91105663A EP 91105663 A EP91105663 A EP 91105663A EP 0452791 B1 EP0452791 B1 EP 0452791B1
Authority
EP
European Patent Office
Prior art keywords
compression
jaws
press tool
press
pressing
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.)
Expired - Lifetime
Application number
EP91105663A
Other languages
German (de)
English (en)
Other versions
EP0452791A1 (fr
Inventor
Helmut Dipl.-Ing. Dischler
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6404263&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0452791(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP0452791A1 publication Critical patent/EP0452791A1/fr
Application granted granted Critical
Publication of EP0452791B1 publication Critical patent/EP0452791B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/046—Connecting tubes to tube-like fittings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • 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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • 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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/146—Clip clamping hand tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5367—Coupling to conduit

Definitions

  • the invention relates to a pressing tool according to the preamble of claim 1, such as. known from US-A-3706219.
  • Coupling sleeves are used to connect pipe ends, which are plastically deformable and made of metal, preferably steel. Their inner diameter is so much larger than the outer diameter of the pipe ends to be connected that they are permanently deformed in the event of radial compression until they rest against the outer surface of the pipe ends. According to DE-PS 1 187 870 ⁇ , such coupling sleeves can additionally have an annular groove on the inside near each end, into which an elastic sealing ring is inserted.
  • the radial compression takes place by means of pressing tools, as are known for example from DE-PS 21 36 782.
  • This pressing tool has two clamping arms, each with two arms, at least one of which is pivotably mounted on the pressing tool.
  • the press jaws have press surfaces which form circular arc sections and have the same radii, which enclose a press space.
  • the pressing surfaces can also be contoured instead of as circular arc sections be, for example, to form a polygonal or oval press room.
  • the arms of the press jaws located distant from the press chamber can be spread against the action of a spring, with the result that the press jaws are moved against one another in the region of the press chamber.
  • the spreading takes place by means of pressure rollers which are arranged next to one another and abut one another and which are moved together between the arms by means of a drive device in the form of a working cylinder and in this way pivot the press jaws.
  • the clamping jaws When pivoting the drive lever in the opposite direction, the clamping jaws are pivoted again so that the perpendicular bisectors approximately collapse on their arc sections and the clamping jaws are displaced parallel to one another when the drive lever is pivoted further.
  • the clamping jaws are moved towards each other until they enclose a circular area at the end of the press and thereby the pipe ends or the coupling sleeve have deformed accordingly while reducing the diameter.
  • This press tool has proven itself when a not too large diameter reduction or insertion depth is required. For greater press-in depths, which are required if the pipe connections are to withstand higher internal pressures, it is necessary to provide more than two press jaws so that there is no formation of outwardly projecting webs between the end faces of the press jaws, which leads to a complete closing of the press jaws would prevent.
  • Such pressing tools are described for example in DE-OS 21 182, DE-OS 35 13 129, DE-AS 25 11 942 and DE-AS 19 0 ⁇ 7 956. All pressing tools disclosed therein have in common that all pressing jaws are movable and guided in the radial direction. This requires complex guides and drive devices, which makes the pressing tools difficult and therefore difficult to handle and also expensive.
  • the invention is therefore based on the object of designing a press tool of the type mentioned in such a way that, despite the arrangement of more than two press jaws, it is as simple as possible and thus easy to handle and can be produced inexpensively.
  • the pressing tool according to the invention is characterized by a simple structure, since at least two pressing jaws are displaceably guided in the pressing jaw carrier (s) and only the pressing jaw carriers have a connection to the drive device. There is therefore no need to provide a drive device for each press jaw. Accordingly, this press tool is easy to handle and inexpensive to manufacture.
  • the press jaws have circular arc sections of equal length, that is to say the gaps between the end faces of the press jaws are distributed uniformly over the circumference.
  • Two oppositely directed pressing jaw carriers each with two movable pressing jaws, are expediently provided.
  • a further division of the press jaws results from the fact that a press jaw held immovably on the press jaw carrier is arranged on the press jaw carrier (s) between the respective movable press jaws.
  • the movable press jaws should be spring-loaded against a stop in the opening direction of the angle of the movement paths.
  • Guide devices are expediently designed as straight, V-shaped guide tracks for the press jaws which are movably held in the press jaw carriers.
  • Two drive levers (124, 125) are mounted on the frame part (122) as a mirror image of the longitudinal axis (123) so that they can rotate about pivot bolts (126, 127) extending perpendicular to the plane of the drawing.
  • the downward-pointing arms (128, 129) of the drive levers (124, 125) are spread out for pivoting in the directions of the arrows O, P, against the action of a lower arm (128, 129) which does not show here in detail Feather.
  • a pair of pressure rollers is used to spread the lower arms (128, 129), as is described in principle in DE-OS 34 23 283.
  • Press jaw supports (132, 133) are hinged to the arms (130, 131) which extend upwards from the pivot pins (126, 127), specifically via pivot pins (134, 135) which extend perpendicular to the plane of the drawing. These press jaw supports (132, 133) are formed in the center to form press jaws (136, 137). On each side of it, the press jaw supports (132, 133) have flat guide surfaces (138, 139, 140 ⁇ , 141) which extend in a V-shape, the V-angles opening towards one another. On these guide surfaces (138, 139, 140 ⁇ , 141) there are further press jaws (142, 143, 144, 145).
  • the compression jaws (142, 143, 144, 145) are each pressed outwards by means of compression springs (146, 147, 148, 149) which support the compression jaw supports (132, 133) and lie on stops (150 ⁇ , 151, 152 , 153).
  • compression springs 146, 147, 148, 149 which support the compression jaw supports (132, 133) and lie on stops (150 ⁇ , 151, 152 , 153).
  • the guide surfaces (138, 139, 140 141, 141) and the surfaces of the press jaws (142, 143, 144, 145) that are adjacent to them are designed such that the latter cannot fall out when the press tool (121) is open.
  • the lower arms (128, 129) of the drive lever (124, 125) are first pressed together by hand, that is, contrary to the arrows O, P.
  • the upper arms (130 ⁇ , 131) open mouth-like and free up a space so that the pressing tool (121) can be pushed transversely to its longitudinal axis via a coupling sleeve (154), which is put over a pipe end (155).
  • the pressing jaw carriers (132, 133) - which is not shown here - can be guided through scenes such as those described for the pressing tool according to DE-OS 34 23 283 in such a way that they first move apart axially parallel and then by a pivoting movement nash open at the top.
  • the press jaw supports (132, 133) are closed by spreading the lower arms (128, 129) with the aid of the drive device, not shown here.
  • the press jaws (136, 137, 142, 143, 144, 145) then come to rest on the jacket of the coupling sleeve (154), and only with their respective outer transverse edges.
  • the stops (150 ⁇ , 151, 152, 153) are arranged so that between the six press jaws (136, 137, 142, 143, 144, 145) gaps (156, 157, 158, 159, 160 ⁇ , 161) remain are essentially the same size.
  • this pressing tool (171) the drive device, the tool housing and the drive lever are omitted.
  • a compression spring (184, 185) is arranged, which strives to press the pressing jaws (180 ⁇ , 181) or (182, 183) apart , ie to push outwards.
  • the range of motion of the pressing jaws (180 ⁇ , 181, 182, 183) is limited by the limiting pins (186, 187, 188, 189) protruding from the guide surfaces (176, 177, 178, 179), which are shown in Hold recesses (190 ⁇ , 191, 192, 193) in the back of the press jaws (180 ⁇ , 181, 182, 183).
  • the limiting pins (186, 187, 188, 189) are arranged and the recesses (190 ⁇ , 191, 192, 193) are dimensioned such that there is between the end faces of the press jaws (180 ⁇ , 181, 182, 183) when they are in contact with a coupling sleeve , which is slipped over a pipe end (195), form equally large gaps (196, 197, 198, 199).

Claims (7)

  1. Outil de compression (121; 171), en particulier pour relier des pièces tubulaires, comprenant au moins deux leviers de commande (124, 125) qui sont déplaçables l'un par rapport à l'autre de manière que l'outil de compression (121; 171) puisse être ouvert comme une bouche pour la mise en place sur la pièce (154, 155; 194, 195) et puisse être ferme, vers la fin de la compression, pour délimiter un espace de compression fermé, avec coordination à chacun des leviers de commande (124, 125) de mâchoires de compression (142 à 145; 180 à 183) et avec coordination à au moins l'un des leviers de commande (124, 125) de deux mâchoires de compression (142 à 145; 180 à 183) qui sont guidées sur des glissières (138 à 141; 176 à 179) renfermant chaque fois un angle disposé symétriquement par rapport au centre de l'espace de compression à l'état fermé et s'ouvrant vers ce centre, caractérisé en ce que, sur chaque levier de commande (124, 125), est articulé pivotant un porte-mâchoires (132, 133; 172, 173), porte-mâchoires sur lesquels sont disposées les mâchoires (142 à 145; 180 à 183), et que les leviers de commande (124, 125) sont actionnés par au moins un dispositif de commande.
  2. Outil de compression selon la revendication 1, caractérisé en ce que les mâchoires de compression (142 à 145; 180 à 185) sont guidées pour qu'elles soient déplaçables les unes par rapport aux autres, de manière que leurs faces d'extrémité voisines, situées l'une en face de l'autre, soient mutuellement espacées de façon égale au début de la compression.
  3. Outil de compression selon la revendication 1 ou 2, caractérisé en ce que les mâchoires de compression (136, 137, 142 à 145, 180 à 183) possèdent la même longueur.
  4. Outil de compression selon une des revendications 1 à 3, caractérisé en ce qu'il comprend deux porte-mâchoires (132, 133; 172, 173)dirigés l'un contre l'autre supportant chacun deux mâchoires de compression mobiles (142 à 145; 180 a 183).
  5. Outil de compression selon une des revendications 1 à 4, caractérisé en ce qu'une mâchoire de compression (136, 137) maintenue immobile sur le porte-mâchoire (132, 133), est disposée entre des mâchoires de compression mobiles (142 à 145) sur le ou les porte-mâchoires (132, 133).
  6. Outil de compression selon une des revendications 1 à 5, caractérisé en ce que les mâchoires de compression mobiles (142 à 145; 180 à 183) sont chargées par ressort vers une butée correspondante (150 à 153; 186 à 189) dans le sens de l'ouverture de l'angle des trajectoires de mouvement.
  7. Outil de compression selon une des revendications 1 à 6, caractérisé en ce que les dispositifs de guidage pour les mâchoires de compression (142 à 145; 180 à 183) maintenues mobiles dans les porte-mâchoires (132, 133; 172, 173), sont réalisés comme des glissières (138 à 141; 176 à 179) droites orientées en V.
EP91105663A 1990-04-12 1991-04-10 Outil de pressage Expired - Lifetime EP0452791B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4011822 1990-04-12
DE4011822 1990-04-12

Publications (2)

Publication Number Publication Date
EP0452791A1 EP0452791A1 (fr) 1991-10-23
EP0452791B1 true EP0452791B1 (fr) 1994-09-14

Family

ID=6404263

Family Applications (4)

Application Number Title Priority Date Filing Date
EP94110655A Expired - Lifetime EP0628362B1 (fr) 1990-04-12 1991-04-10 Outil de pressage
EP94110654A Expired - Lifetime EP0627273B1 (fr) 1990-04-12 1991-04-10 Outil de pressage
EP91105662A Expired - Lifetime EP0451806B1 (fr) 1990-04-12 1991-04-10 Outil de pressage
EP91105663A Expired - Lifetime EP0452791B1 (fr) 1990-04-12 1991-04-10 Outil de pressage

Family Applications Before (3)

Application Number Title Priority Date Filing Date
EP94110655A Expired - Lifetime EP0628362B1 (fr) 1990-04-12 1991-04-10 Outil de pressage
EP94110654A Expired - Lifetime EP0627273B1 (fr) 1990-04-12 1991-04-10 Outil de pressage
EP91105662A Expired - Lifetime EP0451806B1 (fr) 1990-04-12 1991-04-10 Outil de pressage

Country Status (8)

Country Link
US (1) US5148698A (fr)
EP (4) EP0628362B1 (fr)
JP (2) JPH0768329A (fr)
AT (4) ATE111385T1 (fr)
CA (2) CA2040277C (fr)
DE (5) DE9007414U1 (fr)
DK (4) DK0628362T3 (fr)
ES (4) ES2129089T3 (fr)

Cited By (1)

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DE102004022665B4 (de) * 2003-06-25 2006-09-28 V-Team American Bikes + Products Gmbh Vorrichtung zum Umformen von rohrförmigem Halbzeug

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CN106583569B (zh) * 2017-01-23 2018-02-23 湖南金峰金属构件有限公司 一种多单元组合冷挤压机
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CN112122471A (zh) * 2020-06-28 2020-12-25 浙江赛格园林机械有限公司 一种环状击打缩管机
CN112122472A (zh) * 2020-06-28 2020-12-25 浙江赛格园林机械有限公司 一种缩管机的缩管装置
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Also Published As

Publication number Publication date
CA2040277A1 (fr) 1991-10-13
EP0628362B1 (fr) 1998-06-17
EP0627273A2 (fr) 1994-12-07
DE59109014D1 (de) 1998-07-23
ES2062596T3 (es) 1994-12-16
DK0627273T3 (da) 1999-09-06
ES2067077T3 (es) 1995-03-16
DK0452791T3 (da) 1994-12-12
JPH0768330A (ja) 1995-03-14
CA2040278C (fr) 2001-10-02
CA2040278A1 (fr) 1991-10-13
DE59102895D1 (de) 1994-10-20
ATE111385T1 (de) 1994-09-15
DK0451806T3 (da) 1995-05-22
ATE175599T1 (de) 1999-01-15
EP0451806A1 (fr) 1991-10-16
DE59109090D1 (de) 1999-02-25
DE59109090C5 (de) 2011-01-05
DK0628362T3 (da) 1999-04-06
DE9007414U1 (fr) 1991-07-18
DE59104196D1 (de) 1995-02-23
EP0628362A3 (fr) 1995-06-14
JPH0768329A (ja) 1995-03-14
ES2119935T3 (es) 1998-10-16
EP0451806B1 (fr) 1995-01-11
US5148698A (en) 1992-09-22
ES2129089T3 (es) 1999-06-01
EP0627273A3 (fr) 1995-06-14
EP0627273B1 (fr) 1999-01-13
EP0452791A1 (fr) 1991-10-23
CA2040277C (fr) 2001-12-04
ATE116880T1 (de) 1995-01-15
EP0628362A2 (fr) 1994-12-14
JP3334892B2 (ja) 2002-10-15
ATE167414T1 (de) 1998-07-15

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