EP1097756A1 - Rohrendvervormungsvorrichtung und vorrichtung mit zwei formeinrichtungen - Google Patents

Rohrendvervormungsvorrichtung und vorrichtung mit zwei formeinrichtungen Download PDF

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Publication number
EP1097756A1
EP1097756A1 EP00390019A EP00390019A EP1097756A1 EP 1097756 A1 EP1097756 A1 EP 1097756A1 EP 00390019 A EP00390019 A EP 00390019A EP 00390019 A EP00390019 A EP 00390019A EP 1097756 A1 EP1097756 A1 EP 1097756A1
Authority
EP
European Patent Office
Prior art keywords
forming
clamping
axis
tube
tubes
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.)
Withdrawn
Application number
EP00390019A
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English (en)
French (fr)
Inventor
Philippe Jaubert
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.)
Financiere Robolix A Responsabilite Ltee Ste
Original Assignee
Financiere Robolix A Responsabilite Ltee Ste
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 Financiere Robolix A Responsabilite Ltee Ste filed Critical Financiere Robolix A Responsabilite Ltee Ste
Publication of EP1097756A1 publication Critical patent/EP1097756A1/de
Withdrawn legal-status Critical Current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
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • 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
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/04—Reducing; Closing

Definitions

  • the invention relates to a machine for forming ends of tubes, comprising mounted on a frame, means for holding and clamping a tube adapted to position it so that it extends along a longitudinal axis (x), said forming axis, at least one tool for forming one end of said tube, and means for translational movement of each tool able to move it along the axis (x) between an advanced forming position adapted to allow forming the end of the tube, and a withdrawal position adapted to allow unloading of the formed tube and loading of a new tube. It extends to a device for forming comprising two of said forming machines.
  • All forming machines designed to date comprise, as means for holding the tubes, two clamping jaws provided opposite a clamping wall having a longitudinal groove capable of forming, in a clamping position where said walls are in contact with each other, a conduit for holding and clamping a tube, and means for moving a said clamping jaws able to move it in translation along an axis orthogonal to the longitudinal axis (x) between a clamping position allowing the formation of a end of the tubes, and a position for loading / unloading said tubes where the clamping walls are spaced from each other by a given distance.
  • each loading operation requires bringing the tube opposite the two clamping jaws in the middle position between said clamping jaws, then move said tube orthogonally to its first axis of movement so as to bring it opposite the grooves of these clamping jaws, and finally to move this tube along an axis parallel to its first axis of movement so as to accommodate it in the groove of one of the clamping jaws.
  • each operation of unloading requires the tubes to undergo a journey in three distinct phases identical to that required for loading said tube.
  • the present invention aims to overcome this absence of alternative and has for primary objective to provide a forming machine whose operations of loading / unloading takes place in an optimized manner as regards the rate of production.
  • Another object of the invention is to provide a machine for training not requiring a high-power hydraulic unit.
  • Another object of the invention is to provide a machine for train whose tube loading / unloading operations are fully automated.
  • Another object of the invention is to provide a machine for forming provided with clamping jaws capable of ensuring the formation of types different and / or tubes of different diameters.
  • Another object of the invention is to provide a device for forming of reduced bulk able to form the two ends of tubes.
  • the opening and closing is obtained by a simple tilting of the clamping jaws which leads to positioning the faces of clamping said clamping jaws substantially coplanarly in the position of loading / unloading of tubes.
  • the loading and unloading each simply requires a single transfer in translation of the tube along an axis orthogonal to the longitudinal forming axis.
  • the forming machine according to the invention simply comprises at minus a tube loading / unloading clamp equipped with gripping with angular opening, and means for translational movement of each clamp along an axis (y) orthogonal to the axis (x), capable of bringing each of the clamps in a forming position where the tube is coaxial with the axis (x) and loading / unloading positions where said tube extends parallel to said axis (x).
  • this tightening force is a function of the slope of the side walls and can for example reach for a slope of 3 degrees, a value 11 tonnes from a power developed by the displacement means of around 600 kg.
  • each foot advantageously present in the continuity of the inclined wall of each clamping jaw, an inclined face forming an obtuse angle with said inclined wall.
  • the locking members consist advantageously in two rollers rotatably mounted on the ends of two branches a stirrup of suitable shape to frame the clamping jaws, the means actuating said rollers consisting of a cylinder having a rod perpendicular to the axis (x), integral with said stirrup.
  • the displacement cylinder locking members is advantageously a pneumatic cylinder, so that the forming machine does not need to be associated with a hydraulic unit.
  • the forming machine according to the invention comprises conventionally, stop means for positioning the end to be formed tubes.
  • each loading / unloading clamp is mounted on means for abutting tubes capable of moving it in translation along an axis parallel to the axis (x).
  • the forming machine comprises two grippers loading / unloading carried by means of displacement in translation common capable of alternately positioning one of said clamps in a forming position and the other gripper in a loading position and / or unloading.
  • each clamping jaw has clamping walls provided facing at least two superimposed grooves of different longitudinal sections or profiles, said clamping jaws being mounted on a frame carried by displacement means in translation of said frame along an axis perpendicular to the axis (x) adapted to allow to position one of the complementary grooves of the clamping jaws in the alignment of the axis (x).
  • Such a forming device very compact on the ground restricted, allows to form with a very high productivity, the two ends of the tubes.
  • this forming device advantageously comprises means for numerically controlling means for moving means for gripping the transfer unit.
  • this forming device comprises advantageously, disposed between at least one of the forming machines and the unit of transfer, a production unit such as rolling unit, control unit, unit components, the number of clamps and the means of movement translation of the latter being adapted to ensure the transfer of the tubes between the forming machines, each production unit and the transfer unit.
  • a production unit such as rolling unit, control unit, unit components, the number of clamps and the means of movement translation of the latter being adapted to ensure the transfer of the tubes between the forming machines, each production unit and the transfer unit.
  • the forming machine shown by way of example in the figures 1 and 2 is adapted to form the end of tubes presented axially, according to a forming axis (x) next to forming tools.
  • the machine shown in Figure 1 includes a support member tool holders which can be of any type known per se, and in the example shown consisting of a rotary barrel 4 around an axis (x1) parallel to the axis of forming, pierced with a plurality of longitudinal housings capable of each housing a tool holder such as 5, 6, having a blind bore into which is inserted and joined together, in a conventional manner, a tool such as 5a, 6a.
  • a support member tool holders which can be of any type known per se, and in the example shown consisting of a rotary barrel 4 around an axis (x1) parallel to the axis of forming, pierced with a plurality of longitudinal housings capable of each housing a tool holder such as 5, 6, having a blind bore into which is inserted and joined together, in a conventional manner, a tool such as 5a, 6a.
  • This machine further comprises means for translational movement of the tool holder 5 arranged coaxially with the axis of forming, capable of alternately moving said tool holder in order to perform a forming pass, and to provide the energy necessary for carrying out the forming.
  • Such means of movement can be of any type conventional known per se or preferentially of the type of those described in the patent application filed today together with this application, on behalf of the plaintiff.
  • this forming machine comprises two clamping jaws 7, 8 provided a clamping wall 7a, 8a having a longitudinal groove 9, 10 capable of forming in a clamping position where said clamping walls are in contact with one of the other, a pipe for holding and tightening a tube, coaxial with the forming axis (x).
  • these two clamping jaws 7, 8 are articulated at one of their ends, in the example shown consisting of their lower end, around a tree hinge 11 parallel to the forming axis (x), so that it can pivot between their clamping position and a position of loading / unloading of the tubes where their clamping faces 7a, 8a are substantially coplanar.
  • the clamping jaws 7, 8 have lower portions shaped so as to form an axis hinge articulation parallel to the forming axis (x), the lower portion of one of the jaws clamping device having for this purpose the shape of a yoke 12, and that of the other jaw clamping 8 having the shape of a stud 13 adapted to be housed in said screed.
  • clamping jaws 7, 8 are partially integrated in a casing 14, adapted so that the grooves 9, 10 are positioned above of said housing in the clamping position of said clamping jaws, the articulation shaft 11 being secured to the front walls of this casing 14.
  • each clamping jaw 7, 8 has, opposite to its clamping wall 7a, 8a, a side wall 7b, 8b inclined at an angle of the order of 3 degrees from said clamping wall so as to diverge from this last from the hinge axis of said clamping jaws.
  • Each of these inclined walls 7b, 8b further presents, at level of its lower end, a foot such as 15 of section substantially in shape of a right triangle, the upper face 15a of which extends in continuity with said wall inclined so as to form an obtuse angle with the latter.
  • the forming machine according to the invention also comprises means for actuating the clamping jaws 7, 8 able to switch them between their clamping position and their loading / unloading position, and to exercise in the clamping position of said clamping jaws, a force on the orthogonal tube to the clamping walls 7a, 8a, for keeping the latter in contact.
  • clamping means comprise two rollers 16, 17 each arranged so as to move in contact with the inclined wall 7b, 8b of a clamping jaws 7, 8, and mounted free in rotation on the ends of the branches a bracket 18 housed in the casing 14 and having the shape of a U of dimensions adapted to frame said clamping jaws.
  • actuating means further comprise a jack tire 19 arranged vertically, the rod 19a of which extends into the casing 14, and on the end of which the base of the stirrup 18 is secured.
  • the first advantage resulting from the design of such jaws of tightening 7, 8 lies in the fact that they make it possible to obtain a final tightening force important from a simple pneumatic cylinder 19 of low power.
  • a second benefit from the machine design to be formed in accordance with the invention lies in the fact that the loading and unloading the tubes simply requires moving them only along an axis of horizontal translation orthogonal to the forming axis, suitable for allow them to be positioned before forming, then to grasp them after forming coaxially with said forming axis.
  • the operations of loading / unloading can be carried out using a simple clamp conventional gripping device 20 represented in FIG. 7, provided with gripping fingers such that 21 with angular opening and a jack 22 for opening and closing said fingers, said clamp being mounted under a profile, constituted in the example of a square 23 in the shape of an inverted L, driven in translation along the axis (y) by any conventional means of a type known per se.
  • the cylinder 22 actuating the gripping fingers 21 is mounted on the rod of a guided cylinder 24 whose body is integral with the vertical wing of the profile 23.
  • a guided cylinder 24 allows, in fact, to adjust the position, along the forming axis (x), of the end to form a tube carried by the gripper 20, so as to bring it into abutment against stop members for longitudinal positioning of said tube, of which conventionally equipped with forming machines.
  • the stop member can be any conventional type known per se.
  • the stop member shown in Figure 1 consists of a retractable stop 50 as described in detail in the application for French patent filed today in the name of the plaintiff jointly with the this request.
  • FIG. 4 represents an alternative embodiment of a forming machine according to the invention according to which the clamping jaws 25, 26 have clamping walls such as 25a provided with two longitudinal grooves 27, 28 superimposed capable of forming two separate superimposed conduits for holding and clamping tubes, in the clamping position of said clamping jaws.
  • these two clamping jaws 25, 26 are of a design identical to that of those previously described, the opening and closing of the latter being in particular generated by means of a pneumatic cylinder 29.
  • this jack tire 29 is itself secured to rod 30a of a second jack 30 arranged vertically, adapted to bring either one or the other of the grooves 27, 28 coaxially with the forming axis (x).
  • the superimposed grooves 27, 28 may have different tube clamping sections and therefore allow form, without having to change the clamping jaws 25, 26, tubes of diameters different.
  • These superimposed grooves 27, 28 can also be, such as shown in Figure 4, the same tube clamping sections but present lengths or different forming profiles suitable for making in two forming passes (or n forming passes if the clamping jaws have n grooves superimposed) with different tools, very different shapes.
  • Figures 5 and 6 represent a unit of forming comprising two forming machines 31, 32 as described above arranged to allow the two ends of the tubes to be formed.
  • these two forming machines 31, 32 are arranged head to tail on either side and a short distance from an axis (y), and are offset from each other by a given distance along said axis (y).
  • the forming unit includes a transfer unit 33 interposed at mid-distance, along the axis (y), between the two forming machines, adapted to allow each tube to be moved, one end of which was formed by one of the forming machines 32, from a distance in a direction parallel to the forming axis (x) adapted to allow the other end of this tube to be formed by the second forming machine 31.
  • This transfer unit includes grippers such as 34 with angular opening, of any conventional type known per se, arranged with so as to grip the tubes in the same horizontal plane as that defined by the axes of forming forming machines 31, 32.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP00390019A 1999-11-04 2000-10-31 Rohrendvervormungsvorrichtung und vorrichtung mit zwei formeinrichtungen Withdrawn EP1097756A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9913830 1999-11-04
FR9913830A FR2800651B1 (fr) 1999-11-04 1999-11-04 Machine a former des extremites de tubes, et dispositif de formage comportant deux desdites machines a former

Publications (1)

Publication Number Publication Date
EP1097756A1 true EP1097756A1 (de) 2001-05-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00390019A Withdrawn EP1097756A1 (de) 1999-11-04 2000-10-31 Rohrendvervormungsvorrichtung und vorrichtung mit zwei formeinrichtungen

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EP (1) EP1097756A1 (de)
FR (1) FR2800651B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102284582A (zh) * 2011-07-01 2011-12-21 张家港兴宇机械制造有限公司 自动缩管机用进管引导装置
CN109500180A (zh) * 2018-12-28 2019-03-22 湖南腾远智能设备有限公司 一种管体端部处理设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078906A (en) * 1960-05-27 1963-02-26 Western Electric Co Machine for flanging tubular members
US4175417A (en) * 1977-12-01 1979-11-27 Cassanelli Ernest M Workpiece forming machine
EP0083577A1 (de) * 1982-01-06 1983-07-13 MANNESMANN Aktiengesellschaft Haltevorrichtung für die Rohrendstücke in einer hydraulischen Rohrendenpresse
US4505144A (en) * 1983-02-18 1985-03-19 Honda Giken Kogyo Kabushiki Kaisha Apparatus for simultaneous both-end shaping of workpiece

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078906A (en) * 1960-05-27 1963-02-26 Western Electric Co Machine for flanging tubular members
US4175417A (en) * 1977-12-01 1979-11-27 Cassanelli Ernest M Workpiece forming machine
EP0083577A1 (de) * 1982-01-06 1983-07-13 MANNESMANN Aktiengesellschaft Haltevorrichtung für die Rohrendstücke in einer hydraulischen Rohrendenpresse
US4505144A (en) * 1983-02-18 1985-03-19 Honda Giken Kogyo Kabushiki Kaisha Apparatus for simultaneous both-end shaping of workpiece

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102284582A (zh) * 2011-07-01 2011-12-21 张家港兴宇机械制造有限公司 自动缩管机用进管引导装置
CN109500180A (zh) * 2018-12-28 2019-03-22 湖南腾远智能设备有限公司 一种管体端部处理设备
CN109500180B (zh) * 2018-12-28 2023-09-22 湖南腾远智能设备有限公司 一种管体端部处理设备

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Publication number Publication date
FR2800651A1 (fr) 2001-05-11
FR2800651B1 (fr) 2002-01-25

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