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WO1996001166A1 - Dispositif servant a sectionner des conduits - Google Patents

Dispositif servant a sectionner des conduits Download PDF

Info

Publication number
WO1996001166A1
WO1996001166A1 PCT/NL1995/000226 NL9500226W WO9601166A1 WO 1996001166 A1 WO1996001166 A1 WO 1996001166A1 NL 9500226 W NL9500226 W NL 9500226W WO 9601166 A1 WO9601166 A1 WO 9601166A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
blade
cutting
support
drive
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/NL1995/000226
Other languages
English (en)
Inventor
Johannes Arnoldes Van Deyzen
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.)
JAMA BEHEER HEINENOORD BV
Original Assignee
JAMA BEHEER HEINENOORD BV
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 JAMA BEHEER HEINENOORD BV filed Critical JAMA BEHEER HEINENOORD BV
Publication of WO1996001166A1 publication Critical patent/WO1996001166A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D21/00—Machines or devices for shearing or cutting tubes
    • B23D21/04—Tube-severing machines with rotating tool-carrier

Definitions

  • the invention relates to a pipe-cutting apparatus, comprising: a support for the pipe of which a part must be cut; a rotatable round blade which is movable into a position in which the blade extends into the line of the pipe,* and drive means for driving in rotation the blade or the pipe.
  • Such an apparatus is generally known, in the form for example of so-called pipe-cutters which are used by gas fitters and plumbers for shortening gas pipes and water pipes.
  • These known apparatus comprise a bracket provided with rollers, wherein the rollers are fixed to the bracket such that the bracket can be rotated round the pipe for cutting and wherein to the bracket is fixed a rotatable blade which is movable for instance by means of a spindle.
  • a saw-cut is also quite rough so that a further operation is necessary to remove the roughness of the sawn-off piece of pipe and the remaining piece of pipe.
  • a further drawback lies in the fact the saw for use with stainless steel is subject to a high degree of wear, so that the tool life thereof is short.
  • the object of the present invention is to provide such an apparatus, wherein the above-stated problems are avoided.
  • This object is achieved by providing an apparatus as stated in the preamble with means for urging the blade in the direction toward the pipe.
  • figure 1 shows a perspective view of an apparatus according to the invention
  • figure 2 shows a side view of the apparatus depicted in figure 1
  • figure 3 shows a sectional view according to the arrow III in figure 1
  • figure 4 shows a sectional view according to the arrow IV in figure 3
  • figure 5 is a partly broken away view of the carriage associated with the apparatus shown in figure 1 as according to the arrow V
  • figure 6 is a sectional view according to arrow VI in figure 5
  • figure 7 shows a sectional view of the supports of the supporting device forming part of the apparatus depicted in figure 1 as according to the arrow VII
  • figure 8 shows a sectional view according to the arrow VIII in figure 7
  • figure 9 is a schematic perspective view of the cutting apparatus according to the invention as according to a first alternative embodiment
  • figure 10 is a schematic perspective view of a second alternative embodiment of a cutting apparatus according to the invention.
  • the apparatus 1 shown in figure 1 comprises a frame 2, on which a bed 3 is fixed, and on the side of which is arranged a cutting device in the narrow sense 4.
  • the apparatus further comprises a carriage 5 movable along the bed and an actuating rod device 6.
  • the apparatus is finally provided with an electronic control unit 7.
  • the bed 3 is provided with a guide rod 8 which is connected to the bed by means of feet 9.
  • a gear rack 10 is fixed to the underside of the bed.
  • the carriage 5 is provided with a gear wheel 11 which engages with the toothed rack 10.
  • the gear wheel can be driven by means of a servomotor 12.
  • Use is made of a flexible cable duct 13 resting on a support 14 to supply electrical signals and electrical energy to the carriage.
  • supports 16 which extend through openings arranged in the bed 3.
  • Figure 3 shows that the cutting device in the narrow sense is provided with two side pieces 17,18 which together form a frame and which are each connected to the frame 2 of the total machine. Movable in vertical direction between the two side pieces 17,18 is a block 19 in which is mounted a shaft 20 on which is fixed the round blade 21.
  • a pressure block 22 which can exert a downward directed force against block 19.
  • a cavity 23 is which is closed at the top by a stud bolt 24.
  • a gear rim 25 which is provided with an internal screw thread which is in engagement with the stud bolt and which is provided on its periphery with a conical gear wheel 26 which is in engagement with a pinion 27 fixed to a shaft 28 mounted in side piece 17.
  • the shaft 28 is rotatable by means of two handles 29,30.
  • a threaded bush 31 is placed on the conical gear rim 25, which bush is closed on its top side by an axial bearing 32, the other side of which rests against a plate 33 extending between side pieces 17,18.
  • a bearing 34 which rests on its underside against a plate 35 which is likewise arranged between side pieces 17,18. It is thus possible by way of causing the handles 29,30 to rotate to turn the stud bolt 24 downward.
  • the stud bolt is provided with a sleeve 36 which is arranged sealingly in a cover plate of the pressure block 22.
  • the cavity 23 in the pressure block is connected by means of a feed channel 37 to a source of hydraulic pressure with which hydraulic liquid can be supplied to the space 23 and placed under pressure.
  • a gasket 38 On its top side the space 23 is closed by a gasket 38 above which an annular space 39 is present.
  • This annular space 39 is likewise connected to a feed channel 40 for hydraulic liquid.
  • a yoke 41 On the underside of the blade is arranged a yoke 41 which can be guided in vertical direction along two cylindrical guides 42,43. Both guides 42,43 are otherwise connected by a plate 44 into which is screwed a stud bolt 45 which impinges on the yoke 41. By turning the stud bolt 45 by means of a device not shown in the drawing, the height of yoke 41 can be adjusted.
  • Yoke 41 carries two support rollers 46,47 for the pipe 15 to be cut.
  • the cutting apparatus is further shown in figure 4.
  • the block 19 is provided with two radial bearings
  • the blade 21 is fixed to cutting shaft 20.
  • the shaft 20 is driven by means of a keyed connection 50 by the output shaft 51 of a driving hydraulic motor 52.
  • a tray 53 in which lubricating liquid 54 is present.
  • the level of the lubricating liquid 54 is such that the rotatable blade is partially immersed in the lubricant 5 .
  • the pipe drive device which is arranged in the carriage 5 and which will be elucidated with reference to figure 5.
  • the carriage 5 shown in figure 5 is formed by a block, not shown in the drawing, which is connected to a support block 55.
  • a bush 56 Inside which a rotatable, internal bush 57 is situated.
  • Two bearings 58,59 are arranged between bushes 56 and 57, while a support bearing bush 60 is arranged to further support the internal bush 57.
  • the internal bush 57 is thus rotatable relative to bush 56 and block 55.
  • the latter is connected to a belt pulley 61 around which is trained a belt 62.
  • the belt 62 is drivable by means of a hydraulic motor 63 placed on the carriage.
  • the internal bush 57 is connected on one side to an attachment 64 provided with a recess 65.
  • the recess 65 is adapted for gripping the pipes 15 for shortening.
  • Furcher arranged round the attachment is a sleeve 66 which is otherwise connected to bush 56 by means of a bearing 67.
  • a sleeve 66 which is otherwise connected to bush 56 by means of a bearing 67.
  • To shift the pipe 15 for shortening use can of course be made of the possibility of displacing carriage 5.
  • the space 70 is connected by means of two channels 105, 106 respectively to supply means for hydraulic liquid, with which ring 69 can thus be moved relative to block 55.
  • the ring 69 is fixedly connected to the support bearing bush 60 and exerts pressure on sleeve 66 via bearing 67. The attachment piece and therewith the pipe 15
  • a supporting body 72 and an inner blade 73 are arranged at the position of the blade 21 in the interior of the pipe.
  • the right-hand supporting body 73 is held in place by means of a pipe 74 extending through the pipe 15 for shortening.
  • the inner blade 73 extends precisely up to the flat side of the outer blade 21.
  • the supporting body 73 is provided with an annular notch 75.
  • the supporting body 72 is provided on both sides with chamferings 76.
  • Between the two bodies 72,73 are arranged four segments 77a, 77b,77c and 77d which are provided on their inner side with a conical cavity.
  • a conical body 78 Arranged in the conical cavity is a conical body 78 which is connected to a pull rod 79 extending through the pipe 74.
  • the pull rod is provided at its end with a screw thread 80 on which a nut 81 is screwed, wherein a pressure spring 82 is arranged between body 72 and nut 81.
  • a pressure spring 82 is arranged between body 72 and nut 81.
  • FIG 9 shows schematically how the blade 21 is mounted and can be driven by means of the hydraulic motor 52. Shown schematically is the function of the pressure block 22 with which the shaft 20 and therewith the blade 21 can be moved downward.
  • the pressure rollers 46,47 are represented by the yoke 41.
  • a round supporting element 83 which extends beyond the end of the pipe. At the position where it is free, the supporting element is carried by a bearing 84 received in a fixedly disposed bearing block 85. In this embodiment the pipe is pushed manually over the supporting element.
  • the pipe for shortening is herein fed from the front side, in the drawing the left-hand side, of the machine, pushed over the supporting element 16 to the correct position, whereafter a part 86 of the pipe 15 is shortened by means of the rotating blade.
  • the blade 21 is then moved back again to its original position and the pipe 15 shifted manually, whereafter in similar manner a subsequent cut is made and the following piece of pipe shortened.
  • FIG 10 shows an embodiment wherein it is not the blade which is driven but wherein the pipe for shortening is driven.
  • This second alternative embodiment again comprises a supporting element 86 which is drivable by means of a gear rim 87 fixed thereon.
  • the supporting element 86 is otherwise rotatably mounted by means of bearings 88,89 in a bearing block 90.
  • a hydraulic motor 91 on the output shaft to which a conical gear rim 92 is also fixed, drives the supporting element 86 in rotation.
  • a clamping device 93 which is movable along a rail 94 in axial direction of the pipe for shortening.
  • the clamping device comprises two jaws 95,96 which are connected by means of brackets 97,98 respectively to a carriage 99 which is movable along rail 94.
  • a linear drive member 100 is arranged for opening and closing the jaws
  • the linear drive element 104 is then energized, whereby the segments 10la-c are urged apart, and the pipe 15 is fixedly connected for rotation to supporting element 86.
  • the motor 91 is then switched on, the pipe 15 is thus driven in rotation, whereafter the blade 21 is moved into the cutting position and the cut made.
  • the linear drive means 104 is energized in reverse direction, whereby pipe 15 is released from the supporting member.
  • the pipe is fixedly clamped on the outside by means of the clamping device 93 which is moved in axial direction until the correct position is obtained, whereafter the cutting process commences again and the following piece of pipe is cut.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Abstract

L'invention concerne un dispositif servant à sectionner des conduits et comprenant: un support du conduit, dont on doit sectionner une partie; une lame circulaire rotative, mobile vers une position dans laquelle elle s'étend vers l'intérieur de la ligne du conduit; des moyens servant à mettre en rotation la lame ou le conduit et comportant des moyens servant à pousser la lame en direction du conduit. Les dispositifs de sectionnement de conduits de l'état actuel de la technique s'avèrent inadéquats pour sectionner des conduits à vitesse élevée, en particulier, quand il s'agit de conduits en acier inoxydable. Etant donné que le dispositif possède des moyens servant à pousser la lame en direction du conduit, ceux-ci peuvent exercer une force permettant de sectionner le conduit en une durée limitée et avec un nombre minimum de rotations.
PCT/NL1995/000226 1994-07-06 1995-06-27 Dispositif servant a sectionner des conduits Ceased WO1996001166A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9401129 1994-07-06
NL9401129A NL9401129A (nl) 1994-07-06 1994-07-06 Inrichting voor het afsnijden van pijpen.

Publications (1)

Publication Number Publication Date
WO1996001166A1 true WO1996001166A1 (fr) 1996-01-18

Family

ID=19864415

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1995/000226 Ceased WO1996001166A1 (fr) 1994-07-06 1995-06-27 Dispositif servant a sectionner des conduits

Country Status (2)

Country Link
NL (1) NL9401129A (fr)
WO (1) WO1996001166A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2209709C2 (ru) * 2001-08-10 2003-08-10 Государственное унитарное предприятие Машиностроительное конструкторское бюро "Факел" им. акад. П.Д. Грушина Линия резки труб
NL1024614C2 (nl) * 2003-10-24 2005-04-27 Bosch Gmbh Robert Knipproces voor het vervaardigen van een ring, knipinrichting, ring en duwband voorzien van een ring.
CN102528136A (zh) * 2012-01-16 2012-07-04 宁波雄狮机械制造有限公司 一种全自动数控钢管切割机
CN104785854A (zh) * 2015-04-14 2015-07-22 李培芹 一种自动切割钢管装置
WO2015119584A1 (fr) * 2014-02-06 2015-08-13 Thaisakol Group Co., Ltd. Machine d'usinage d'arbre qui est en mesure d'usiner un arbre court
CN109648345A (zh) * 2019-02-22 2019-04-19 任磊 一种不锈钢管材的加工设备
CN109748084A (zh) * 2017-11-02 2019-05-14 中国科学院沈阳自动化研究所 管材修复生产线的管材自动化推料送进模块
CN111872475A (zh) * 2020-06-28 2020-11-03 杭州兴诺汽车零部件有限公司 一种用于钢管的切割装置
CN118768627A (zh) * 2024-09-13 2024-10-15 山西奕消消防科技有限公司 一种用于消防栓生产的工件切割装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB828596A (en) * 1958-04-02 1960-02-17 Etna Machine Company Mechanism for end cropping and producing test samples from welded seam tubing
US3183702A (en) * 1960-11-21 1965-05-18 Rca Corp Method of and apparatus for cutting and deburring tubes
DE1652771A1 (de) * 1968-03-19 1971-09-16 Majer Christian Kg Vorrichtung zum Teilen von Rohren
FR2435317A1 (fr) * 1978-09-08 1980-04-04 Atomic Energy Authority Uk Instrument rotatif d'usinage d'elements metalliques
DE4332008A1 (de) * 1993-09-21 1995-03-23 Ero Edelstahl Rohrtechnik Gmbh Schneidvorrichtung für dünnwandige Rohre

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB828596A (en) * 1958-04-02 1960-02-17 Etna Machine Company Mechanism for end cropping and producing test samples from welded seam tubing
US3183702A (en) * 1960-11-21 1965-05-18 Rca Corp Method of and apparatus for cutting and deburring tubes
DE1652771A1 (de) * 1968-03-19 1971-09-16 Majer Christian Kg Vorrichtung zum Teilen von Rohren
FR2435317A1 (fr) * 1978-09-08 1980-04-04 Atomic Energy Authority Uk Instrument rotatif d'usinage d'elements metalliques
DE4332008A1 (de) * 1993-09-21 1995-03-23 Ero Edelstahl Rohrtechnik Gmbh Schneidvorrichtung für dünnwandige Rohre

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2209709C2 (ru) * 2001-08-10 2003-08-10 Государственное унитарное предприятие Машиностроительное конструкторское бюро "Факел" им. акад. П.Д. Грушина Линия резки труб
NL1024614C2 (nl) * 2003-10-24 2005-04-27 Bosch Gmbh Robert Knipproces voor het vervaardigen van een ring, knipinrichting, ring en duwband voorzien van een ring.
WO2005039812A1 (fr) * 2003-10-24 2005-05-06 Robert Bosch Gmbh Procede de decoupage pour fabrication d'un anneau, dispositif de coupe, anneau et courroie de poussee pourvue d'un anneau
CN100450682C (zh) * 2003-10-24 2009-01-14 罗伯特·博世有限公司 用于制造环的切割方法、环以及配设有环的推送带
CN102528136A (zh) * 2012-01-16 2012-07-04 宁波雄狮机械制造有限公司 一种全自动数控钢管切割机
US20160332243A1 (en) * 2014-02-06 2016-11-17 Thaisakol Group Co., Ltd. Shaft cutting machine that is able to cut short size shaft
WO2015119584A1 (fr) * 2014-02-06 2015-08-13 Thaisakol Group Co., Ltd. Machine d'usinage d'arbre qui est en mesure d'usiner un arbre court
CN105939806A (zh) * 2014-02-06 2016-09-14 塞萨克集团有限公司 能够切割短尺寸轴的轴切割机
US9975189B2 (en) * 2014-02-06 2018-05-22 Thaisakol Group Co., Ltd. Shaft cutting machine that is able to cut short size shaft
CN104785854A (zh) * 2015-04-14 2015-07-22 李培芹 一种自动切割钢管装置
CN104785854B (zh) * 2015-04-14 2017-06-20 山东永平再生资源股份有限公司 一种自动切割钢管装置
CN109748084A (zh) * 2017-11-02 2019-05-14 中国科学院沈阳自动化研究所 管材修复生产线的管材自动化推料送进模块
CN109748084B (zh) * 2017-11-02 2020-12-29 中国科学院沈阳自动化研究所 管材修复生产线的管材自动化推料送进模块
CN109648345A (zh) * 2019-02-22 2019-04-19 任磊 一种不锈钢管材的加工设备
CN111872475A (zh) * 2020-06-28 2020-11-03 杭州兴诺汽车零部件有限公司 一种用于钢管的切割装置
CN111872475B (zh) * 2020-06-28 2022-12-13 杭州兴诺汽车零部件有限公司 一种用于钢管的切割装置
CN118768627A (zh) * 2024-09-13 2024-10-15 山西奕消消防科技有限公司 一种用于消防栓生产的工件切割装置

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Publication number Publication date
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