US20040089043A1 - Method and device for forming a flange or a rim on an end of a steel pipe - Google Patents

Method and device for forming a flange or a rim on an end of a steel pipe Download PDF

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Publication number
US20040089043A1
US20040089043A1 US10/381,385 US38138503A US2004089043A1 US 20040089043 A1 US20040089043 A1 US 20040089043A1 US 38138503 A US38138503 A US 38138503A US 2004089043 A1 US2004089043 A1 US 2004089043A1
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Prior art keywords
pipe
bending
clamping
bent
jaws
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Abandoned
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US10/381,385
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English (en)
Inventor
Manfred Meinig
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METU-SYSTEM MEINIG KG
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METU-SYSTEM MEINIG KG
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Assigned to METU-SYSTEM MEINIG KG reassignment METU-SYSTEM MEINIG KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MEINIG, MANFRED
Publication of US20040089043A1 publication Critical patent/US20040089043A1/en
Abandoned legal-status Critical Current

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    • 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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
    • B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
    • 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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
    • B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
    • B21D19/046—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers for flanging edges of tubular products

Definitions

  • the present invention is concerned with providing a process and a device for carrying out this process, in which the one-piece forming of even complicated flanges and rims not only on short pipes, but rather in particular also on long pipe segments, is economically possible.
  • a tip of the shaping roller cross-section terminates at that location, where the pipe end is to be bent over.
  • the remainder of the cross-sectional shape of the shaping roller is determined by the maximal angle of bending of the tip-stretch profile. Since substantial forces are applied upon the shaping roller during the bending process, a precondition for obtaining a clean bent-edge is thus a rigid mounting and positioning of the shaping roller.
  • the shaping roller and its mounting are connected to a fixed unit with the likewise fixed and non-rotating bending jaws and the drive means therefore, whereby the stability of the device is substantially increased.
  • FIGS. 1 - 12 the process steps of the inventive process on the basis inventive process, showing the steps for forming a conical flange on the end of a pipe, wherein the device parts shown schematically in side view serve only as an example of the results to be achieved by the process and wherein other or differently shaped designs can be achieved,
  • FIG. 13 a schematic side view of a first embodiment of the device for carrying out the inventive process in a first processing position
  • FIG. 14 a side view of the device according to FIG. 13 in a second processing position
  • FIG. 15 a side view of the device according to FIG. 13 in a third processing position
  • FIG. 16 a schematic partial section along the line XVI-XVI in FIG. 13,
  • FIG. 17 a schematic frontal view of the clamping disk employed in accordance with the process shown in FIGS. 13 through 18,
  • FIG. 18 a schematic side view of the parts shown in FIG. 17,
  • FIG. 19 a schematic side view of a clamping disk, pipe and the parts of the drive device of the inventive device
  • FIG. 20 a sectional side view, shown in reduced scale compared to FIG. 19, of a part of the components shown in FIG. 19,
  • FIGS. 21 and 22 an axial section or, as the case may be, schematic side view of a different embodiment of the clamping disk
  • FIGS. 23 and 24 schematic side views of pipe, clamping disk, bending jaws and shaping rollers with different locations or positions of the bending jaws
  • FIGS. 22 through 29 a schematic partial view of a clamping disk and a bending jaw in different bending positions with shaping rollers having differing cross-sections or, as the case may be, without shaping rollers,
  • FIGS. 30 and 31 partial broken away schematic oblique views of parts of an inventive device with pipe, clamping disk, shaping rollers and bending jaws in the resting or, as the case may be, bending position of the bending jaws,
  • FIG. 32 a partial oblique view corresponding to FIG. 30 but without pipe and shaping roller
  • FIGS. 33 through 35 a partial representation according to FIG. 32 with respectively three differing embodiments of the bending jaws.
  • FIG. 36 a schematic partial view of an embodiment with two inventive devices working simultaneously on both ends of a pipe.
  • FIGS. 1 through 12 show respectively in schematic partial representation the process steps of the inventive process on one pipe end.
  • FIG. 1 shows, for simplification, a largely broken away partial sectional view through an unprocessed pipe 12 with circular cross-section and with end 10 facing towards the right in FIG. 1.
  • FIG. 2 shows the condition of the pipe end 10 following the first processing step.
  • the pipe end 10 has become a pipe piece to be further bent, which presently is bent outwards approximately 150° about a rounded-off bending edge 14 relative to the axial direction 16 of the pipe 12 .
  • FIG. 1 shows, for simplification, a largely broken away partial sectional view through an unprocessed pipe 12 with circular cross-section and with end 10 facing towards the right in FIG. 1.
  • FIG. 2 shows the condition of the pipe end 10 following the first processing step.
  • the pipe end 10 has become a pipe piece to be further bent, which presently is bent outwards approximately 150° about a rounded-off bending edge 14 relative to the axial direction 16 of the
  • FIG. 3 shows the condition of the pipe 12 following a second circular pivot bending process, wherein the second pipe piece 18 bordering the first pipe piece 10 is bent outwards about a sharp angle or edge 20 about a right angle against the axial direction 16 .
  • a conical flange is produced from the combination of the adjacent lying pipe pieces 10 and 12 , which are formed as a single piece on the pipe 12 .
  • FIGS. 4 through 12 illustrate schematically the manner of operation of a device for carrying out the inventive process.
  • the same parts are indicated with the same reference numbers.
  • FIG. 4 shows a not-yet-clamped pipe 12 close to a clamping disk 22 in its not yet expanded resting state, which clamping disk 22 is rigidly connected to a drive shaft 24 which can be caused to rotate upon application of force.
  • a first bending jaw 26 for bending the first pipe piece 10 about 150° into a position shown in FIG. 2 is represented in FIG. 4 in the starting position prior to the bending process, in partially broken away view.
  • FIGS. 1 through 3 in comparison to FIGS. 4 through 12, are mirror images rotated 180° perpendicular to the pipe axis 28 .
  • a second bending jaw 30 is rotated by 180° about the pipe axis 28 relative to the first bending jaw 26 shown likewise in its resting position prior to the bending process and shown partially broken away.
  • the second bending jaw 30 serves for bending or introducing the angle into the second pipe piece 18 90° relative to the axial direction 16 of the position shown in FIG. 3.
  • a first shaping roller 32 and a second bending roller 34 likewise shown in their resting positions distanced from the pipe 12 .
  • the first bending roller has a cross-section with rounded off tip 36 , of which the flanks 40 encompass an angle of 30°.
  • FIG. 5 shows a subsequent process stage, in which the clamping disk 22 is introduced into the pipe 12 and is extended to is spread position according to arrows 44 against the inner surface of the pipe 12 from the inside. Together with the clamping disk 22 , the bending jaws 26 and 30 are introduced into the pipe end, but are however both still in the rest position with respect to their pivoting for bending open the pipe end. Likewise, both shaping rollers 32 and 34 are still located in their rest position just as in FIG. 4. At the same time the drive shaft 24 is brought to rotate in the direction of arrow 46 , so that the clamping disk 22 rotates together with the pipe 12 , while the bending jaws 26 and 30 as well as shaping rollers 32 and 34 do not rotate about pipe axis 28 .
  • the friction resistance between the cylindrical outer surface 48 of the clamping disk and the inner surface of the pipe 12 is so large, due to the clamping of the clamping disk 22 in its working position according to FIG. 5, that the pipe 12 rotates along with the clamping disk even overcoming large resistance.
  • FIG. 6 The next process step of the shaping process is shown in FIG. 6, wherein the first shaping roller 32 is moved to its work position lying solidly against the outer side of the pipe 12 , having been moved along the displacement axis 52 according to arrow 50 .
  • first bending jaw 26 is bent about an angle of 150° out of its resting position (FIG. 6) into its work position (FIG. 7), said pivoting about an axis perpendicular to the plane of the drawing, whereby the first pipe piece 10 projecting beyond the clamping disk 22 is bent outwards about 150° about the first shaping roller 32 .
  • drive shaft 24 and clamping disk 22 rotate simultaneously together with the clamped pipe 12 about the rotation axis 28 , after only a few rotations of these parts about the pipe axis 28 the pipe piece 10 is bent outwards about 150° from the pipe 12 about the rounded off edge 14 .
  • the frictional resistance of the pipe piece 10 occurring at the location of bending is substantially reduced.
  • the first shaping roller 32 is withdrawn along the displacement axis 52 , according to arrow 56 , out of the work position and back into its rest position away from the pipe 12 , and at the same time the first bending jaw 26 is pivoted back out of its work position according to arrow 58 , back into its rest position.
  • the second shaping roller is moved out of its resting position along the displacement axis 60 according to arrow 62 into the working position in solid contact against the outer side of the pipe 12 .
  • All of these process steps occur while the drive shaft 24 , the clamping disk 22 and the pipe 12 rotate about the rotation axis 28 and the first bending jaw 26 , second bending jaw 30 as well as the two shaping rollers 32 and 34 remain at rest.
  • the rotating parts and the non-rotating parts are assembled respectively to stable work units.
  • the drive shaft 24 , clamping disk 22 and pipe 12 comprising work unit to remain at rest and the other work unit comprised of the bending jaws and the shaping rollers to rotate about the pipe axis 28 .
  • the second bending jaw 30 is pivoted according to arrow 64 out of its resting position into the working position, whereby the second pipe piece 18 projecting beyond the clamping disk 22 is bent outwards with a sharp bent angle 20 of 90° corresponding to the cross-section of the second shaping roller 34 .
  • the complete bending of the second pipe piece 18 away from the pipe 12 towards outwards is accomplished after the rotating parts 24 , 22 and 12 have carried out a few rotations about the pipe axis 28 .
  • the second shaping roller 34 is retracted from the pipe 12 along the displacement axis 60 according to arrow 66 and the second bending jaw 30 is pivoted back to its resting position along arrow 68 .
  • FIGS. 13 through 16 a preferred embodiment of the device for carrying out the inventive process is shown schematically with the parts necessary for carrying out the invention.
  • individual parts of the pieces are omitted, for example from the pipe 12 , the clamping disk 22 , the drive shaft 24 and the bending jaws 26 .
  • one bending jaw 26 and shaping roller 32 is shown, which is suitable for a single bending process of a projecting pipe piece 10 .
  • additional bending jaws and shaping rollers can be provided about the rotation axis 28 outside of the plane of the drawing. Their detailed description can however be omitted, since they function in the same manner as the parts shown in FIGS. 13 through 16. If an individual work unit comprised of bending jaw and shaping rollers is employed for each bent edge, then this has the advantage, that for the individual processing steps no work tools need be changed. It is necessary particularly in mass production that the processing units can come into engagement sequentially without interference.
  • Each of the work units including one bending jaw 26 and one shaping roller 32 is respectively mounted on a mobile sled 70 , wherein multiple sleds can be mounted radially on a base plate 72 .
  • the individual processing units can be easily adapted to the respective diameters of the pipe 12 to be processed.
  • Each sled 70 can be moved along two parallel sled guides 71 according to the double arrow 74 via a threaded spindle 78 rotated by a rotational drive 76 .
  • Two parallel side plates 80 are provided parallel and spaced apart from each other on the sled 70 , which are connected rigidly with each other in the manner of a frame by intermediate plates 82 .
  • a broad, somewhat circular or cylindrically shaped sector plate 84 Between the two side plates 80 lying slidingly on the inner sides of the side plates 80 is a broad, somewhat circular or cylindrically shaped sector plate 84 , on which by means of screws 86 the bending jaws 26 are secured.
  • the sector plate 84 forms, parallel to the side plates 80 , as can be seen in the cross-section of FIG. 13, an incomplete sector of a circle, of which the middle segment lying opposite the circular arc 88 is missing, since the center of the arc sector must remain free for the bending process of the pipe piece 10 .
  • the angles 90 and 92 connecting to the outside of the circular arc 88 intersect outside the center point of the arc 88 .
  • the bending jaws 26 are secured to the flat surface 92 of the sector plate 84 by screws 86 .
  • the guidance of the sector plate 84 during the necessary pivoting together with the bending jaws 26 occurs by guide rollers 94 , which run in arc-shaped guide grooves 96 in the side plates 80 .
  • the guide rollers 94 project on both sides beyond the sides of the sector plate 84 and are respectively guided in a guide groove 96 .
  • gear teeth 98 In the cylindrical circumference surface of the sector plate 84 corresponding to the arc 88 of the cross-section of the sector plate 84 there is provided gear teeth 98 , which are in engagement with a drive pinion 102 driven by rotational drive 100 .
  • the sector plate 84 can therewith be pivoted out of the rest position of the bending jaws 26 according to FIGS.
  • the pivot angle of the sector plate 84 can therein be freely widely selected and corresponds in the present case to the angle between the two flanks of the cross-section of the shaping roller 32 .
  • the shaping roller 32 is mounted rotatable about its central axis 105 in a fork shaped mounting block 104 , which for its part is moveable along double arrow 50 , 56 out of its resting position according to FIG. 13 into the working position according to FIG. 14.
  • a threaded spindle 106 is provided driven by a drive motor 108 . It is important that the mounting block with shaping roller is secured in work position rigidly and capable of accepting high loads, according to FIGS. 14 and 15, with the working unit comprised of bending jaws, shaping rollers and associated parts.
  • the working unit comprised of bending jaws, shaping roller and associated parts and drive mechanism is so adjusted by means of movement of the sled 70 along the double arrow 78 with respect to the fixed base plate 72 , that it is adapted to the respective diameter of the pipe 12 .
  • FIGS. 13 through 15 such a working unit is shown.
  • Additional work units can be mounted on the base plate 72 with mostly doubled sled guides 71 radiating outward from pipe axis 28 , so that they can be sequentially brought to bear upon the pipe 12 , in order to respectively deform one pipe piece to a part of a complicated flange.
  • each sled 70 there is therein provided one rotation drive 76 with threaded spindle 78 , a threaded follower 110 running upon the threaded spindle 78 and a mounting means 112 connecting this with the sled 70 , wherein the mount 112 can be displaced in a slit 114 of the base plate 72 running radially to the pipe axis 28 .
  • FIGS. 17 through 20 Since the task of the clamping disk 22 is comprised therein, to prevent the deformation or change in form of the pipe inner side, it is important that a substantially complete contacting of the inner cylindrical circumference 116 of the pipe wall occurs.
  • the shown preferred embodiment of the clamping disk is thus subdivided into multiple, in the illustrated embodiment six, sectors 118 , which in a subsequently in greater detail described manner can be spread from their inner rest position shown in the left half of FIGS. 17 and 18 into an outward work position in tensioned manner on the inside of the pipe 12 shown in the right half of FIGS.
  • the number of the sectors is as large as desired. Therein a larger number of sectors has the advantage, that the gap 126 between the sectors 118 , which result following spreading of the clamping disk 22 , becomes smaller, and it covers the wall of the pipe 12 , even when the pipe is very thin walled, without changing the shape of the pipe.
  • the sectors 118 are arc sectors and end, a distance from the pipe axis 28 , in a cylindrical-sectional inner surface 128 .
  • the radial breadth of the sectors 118 can be freely selected, in order to conform the diameter of the clamp 22 to the respective diameters of the pipe 12 .
  • the adaptation or conforming can occur by the simple exchange of sectors 118 .
  • the inner surfaces 128 of sectors 118 lie on the cylindrical outer surfaces 130 of cylindrical shaped clamp jaws 132 .
  • the sectors 118 are secured by radial screws 142 to the clamp jaws 132 .
  • the clamp jaws 132 have a slanted inner face surface 134 with respect to the pipe axis 28 , which respectively lie against a face 136 of the widening end 120 of the pull rod 122 .
  • the widening end 120 has a hexagonal cross-section, so that one side surface is provided for each of the six clamp jaws 132 .
  • the main drive shaft 24 for rotating the clamping disk and the pipe 12 is centrally axially bored through, and the pull rod 122 extends through this bore.
  • the pull rod 122 can be moved from the rest position 138 shown in the lower half of FIG. 19 to the wider or working position 140 shown in the upper half of FIG. 19.
  • the sectors 118 are moved out of the rest position shown in the left half of FIGS. 17 and 18 with close spacing from the inner surface of the pipe 12 into the working position shown in the right half of FIGS. 17 and 18 lying with tension against the inner surface of the pipe 12 .
  • This movement is caused by the appropriate displacement of the clamp jaws 132 .
  • the drive shaft 24 extends through a cutout 144 of the base plate 72 of the overall device and is mounted rotatably in a manner known to those of ordinary skill and is caused to rotate by a drive motor 146 with hollow shaft drive 148 .
  • the opposite end of the drive shaft 24 exhibits a mushroom shaped widening 150 with a planar end face 152 , upon which the planar slide surfaces 154 of the clamping jaws 132 lie radially slideable.
  • the slide surfaces 156 of the clamp jaws lying opposite to the slide surface 154 lie slidingly against the inner surface of a counter slide 158 , which is secured by screws 160 to the mushroom shaped widening 150 .
  • the screws 160 pass through the mentioned holes 169 in the clamp jaws 132 , which allow the necessary slight radial displacement of the clamp jaws 132 .
  • the screws 160 are surrounded by distance casing 162 , which together with the holes 169 of the clamp jaws 132 allows a linear radial guidance of the clamp jaws 132 .
  • the hydraulic cylinder 124 for operating the pull rod 122 is supported axially on the drive means 148 for the hollow drive shaft.
  • the already sufficiently large force of the hydraulic cylinder 124 is again amplified as desired by the slanting of the widening end 120 of the pull rod 122 relative to the pipe axis 28 .
  • the necessary amount of clamping force is produced, which produces a sufficient frictional connection of the clamping disk 22 to the pipe wall, in order to rotate the pipe against the resistance of the bending tools (bending jaws 26 and shaping roller 32 ).
  • the slanting of the widening end 120 can be reversed, that is, be reduced towards the right in FIG. 19, in the case that an oppositely operated pressure rod is employed.
  • the drive shaft 24 can, in the embodiment shown in FIG. 20, be mounted via a ball rotation ring 164 , of which the outer side (or even the inner side) is provided with gear teeth 166 .
  • the drive motor 146 in this case is seated beside the ball rotation ring 164 .
  • the pinion 168 of its drive shaft 170 engages in the teeth of the ball rotation ring 164 and brings about a driving of the drive shaft 24 .
  • other mounting types well know to those of ordinary skill can be considered.
  • FIGS. 21 and 22 An alternative advantageous embodiment of the clamping disk referred to in general with 22 and the drive therefore is shown in FIGS. 21 and 22.
  • the clamping disk 22 exhibits clamp ring 174 with cylindrical circumference surface 116 and conical inner surface 176 , which clamp ring 174 is divided by a circumferentially running slanted slit 172 .
  • against the conical inner surface 176 lies the outer surface 178 of the clamp plate 180 having the same conical shape, which by means of bolts 182 and nuts 184 is secured to the widened end 186 of the pull rod 122 .
  • the clamp ring 174 allows itself to be tensioned or as the case may be detensioned with development any desired amount of force.
  • a slit of the clamping ring 174 running in the axial direction parallel to the pipe axis 128 would also be possible.
  • the slanted arrangement of the slit 172 however prevents, that the gap opening during clamping causes a gap in the widening of the pipe wall causing a deformation or wrinkle in this location.
  • the return of the clamp 174 during detensioning occurs in this case by the spring effect of the clamp ring itself.
  • the spring effect can be amplified by a not shown circumscribing endless pull spring in a groove of the clamp ring 174 .
  • FIGS. 23 through 35 advantageous embodiments of bending jaws 26 and shaping rollers 32 are shown together with a segment of the pipe 12 to be deformed as well as a part of the spread clamping disk 22 .
  • FIGS. 23 and 24 show a first embodiment of these parts, wherein in the above described manner the shaping rollers 32 are moved into a working position pressed against the outer side of the pipe 12 .
  • the bending jaw 26 pivotable in the above described manner lies in its rest position against the inner side of the pipe piece 10 to be bent and extending beyond the clamping disk 22 , whereupon the pipe wall is clamped and held between the clamping disk 22 and shaping roller 32 .
  • the tip 36 of the cross-section of the shaping roller 32 ends at the point, where the projecting pipe piece 10 is to be bent.
  • the pivotable bending jaw 26 lies on its resting position according to FIG. 23 against the inner side of the pipe piece 10 . Its axial breadth is at least somewhat larger than the axial length of the pipe piece 10 to be bent. Thereby it is ensured that the pipe piece to be bent is lifted as a whole and thus is not changed in its linear shape. Likewise the cylindrical contact surface 190 of the bending jaw 26 should have the same radius at the pipe end as the pipe inner side, so that the pipe piece 10 to be bent has a large surface area contact surface.
  • the pivotable bending jaw 26 can only bend a partial area of the pipe circumference, the pipe 12 must be caused to rotate in an even, slow rotation. If the pipe 12 rotates, then the bending jaw 26 is pivoted slowly to the desired bending angle (FIG. 24). The bending jaw 26 remains in this work position until the end of its last complete rotation of the pipe 12 about the pipe axis 28 , whereupon the bending out of the pipe piece 10 is ended.
  • the introduction side of its cylindrical outer surface 48 can exhibit a conical narrowing 192 .
  • FIGS. 25 through 28 various embodiments of the shaping roller 32 or, as the case may be, 34 are shown with narrow tip 36 or, as the case may be, right-angled tip 38 .
  • the tip 36 serves for bending of the pipe piece 10 about 1500, while the tip 38 serves for bending the pipe piece 10 about 90°.
  • FIG. 29 there is schematically shown how, absent precise demands on the forming precision of the formed flange or rim, one can entirely bend without shaping rollers and only with clamping disk 22 and bending jaws 26 .
  • FIGS. 30 and 31 show an embodiment of the bending jaw 26 with almost half cylindrical contact surface 190 in resting position (FIG. 30) and work position (FIG. 31).
  • FIG. 32 shows in somewhat enlarged scale a partial representation of a somewhat differently shaped bending jaw 26 with flatter cylindrical contact surface 190 , which is secured by screws 86 to a only partially shown, pivotable sector plate 84 .
  • the contact surface 190 lies with all its frictional force against the inner wall of the not shown pipe.
  • the individual advantageous embodiments of a similar bending jaw 26 as in FIG. 32 however with less friction between contact surface 190 and pipe inner wall is shown. It is actually ideal, when the working radius of the contact surface 190 of the bending jaw 26 corresponds to the pipe inner diameter. Without serious disadvantage the radius of the contact surface 190 can however be smaller than the pipe inner radius. Thereby it is possible, with the same bending jaws to change through multiple pipe diameters.
  • the bending jaws 26 can be further improved by introduction of a whole series or chain of support rollers 194 in the contact surface 190 in the same manner as the support roller 194 according to FIG. 34.
  • five such support rollers 194 are provided in a chain.
  • the remaining part of the contact surface 190 between the support rollers 194 prevents a drooping of the wall of the pipe 12 between the support rollers 194 which would result in wave formation and stretching or distortion.
  • a minimal friction between bending jaws 26 and the inner wall of the pipe 12 is achieved when the bending jaws 26 according to FIG. 35 are fully cylindrical with cylindrical contact surfaces 190 , wherein the entire cylindrical bending jaws 26 are mounted rotatable about a drive shaft 200 on the sector plate 84 .
  • the least amount of friction is produced, since however in most cases insufficient space is available for a large diameter of the cylindrical shaped bending jaws 26 , one must accept the disadvantages in the deformation formation as well as stretching of the pipe wall. These disadvantages are lesser in the case of greater pipe wall thicknesses so that in the case of bending thicknesses above 1.5 mm such a “bending roller” can be employed in the place of bending jaw 26 .
  • the total inventive device for carrying out of the inventive circular pivot bending process can selectively be carried out both in the horizontal as well as in the vertical pipe axis 28 , wherein there is preferred on the one hand straight pipes and on the other hand shorter pipe-shaped pieces to be shaped.
  • devices 204 of the described type are seated upon a common rail system designated overall with 202 mounted to be slidable according to the double arrow 206 , so that the clamping disk 22 and bending jaws 26 indicated schematically lie on opposite ends.
  • Each device 204 can be moved using an independent driven threaded spindle 208 in the rail system 202 .
  • the devices 204 are moved apart from each other, until the pipe length of the pipe 12 fits between the clamping disk 22 . After that both devices 204 are moved towards each other, the clamping disks 22 are introduced into the pipe ends until reaching an abutment, which is set to the processing length of the pipe. Both clamping disks 22 are clamped in the processing position, and processing occurs subsequently simultaneously on both sides. For removal of the pipe 12 the devices 204 must again be moved apart from each other.
US10/381,385 2000-09-25 2001-09-22 Method and device for forming a flange or a rim on an end of a steel pipe Abandoned US20040089043A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10047310A DE10047310A1 (de) 2000-09-25 2000-09-25 Verfahren und Vorrichtung zum Anformen eines Flansches oder Bordes am Ende eines Rohres aus Blech
PCT/EP2001/010962 WO2002024369A1 (de) 2000-09-25 2001-09-22 Verfahren und vorrichtung zum anformen eines flansches oder bordes am ende eines rohres aus blech

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US20040089043A1 true US20040089043A1 (en) 2004-05-13

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US10/381,385 Abandoned US20040089043A1 (en) 2000-09-25 2001-09-22 Method and device for forming a flange or a rim on an end of a steel pipe

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US (1) US20040089043A1 (de)
EP (1) EP1320429B1 (de)
JP (1) JP2004508936A (de)
KR (1) KR20030065482A (de)
CN (1) CN1466499A (de)
AT (1) ATE274381T1 (de)
AU (1) AU2002218191A1 (de)
BR (1) BR0114106A (de)
CA (1) CA2424583A1 (de)
CZ (1) CZ297829B6 (de)
DE (2) DE10047310A1 (de)
ES (1) ES2225627T3 (de)
HU (1) HUP0302953A2 (de)
IL (1) IL155014A0 (de)
NO (1) NO20031337D0 (de)
PL (1) PL200911B1 (de)
RU (1) RU2003112016A (de)
WO (1) WO2002024369A1 (de)

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US20080216539A1 (en) * 2005-07-08 2008-09-11 Manfred Meinig Method and Device for the Integral Molding of a Flange to the End of a Round or Oval Pipe of Thin-Walled Sheet Metal and Pipe Produced by the Method
US7464453B2 (en) 2002-04-05 2008-12-16 Metu-System Meinig Kg Process for butt joining two pipe segments and producing a connecting flange
US20120201360A1 (en) * 2006-10-19 2012-08-09 Embarq Holdings Company, Llc System and method for monitoring a connection of an end-user device to a network
US20150209991A1 (en) * 2012-09-03 2015-07-30 Kawasaki Jukogyo Kabushiki Kaisha Spinning forming method and spinning forming apparatus
US20150343511A1 (en) * 2013-01-08 2015-12-03 Jaesoo Kim Apparatus for manufacturing long-neck flange by applying roller spinning and method therefor
CN117102310A (zh) * 2023-10-19 2023-11-24 山东兆鑫石油工具有限公司 不锈钢内衬防腐油管端面旋转式翻边以及焊接装置

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CN102974672A (zh) * 2012-12-21 2013-03-20 安徽巨一自动化装备有限公司 大开角包边工具
AU2019346637B2 (en) * 2018-09-27 2023-12-21 Inno-Spin LLC Multi-axis roll-forming methods, systems, and products

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498686A (en) * 1946-06-10 1950-02-28 Struthers Wells Corp Machine for flanging cylindrical shells
US2921549A (en) * 1955-11-30 1960-01-19 Earl L Schwenk Holding fixture for spin-forming blanks
US3779060A (en) * 1970-10-28 1973-12-18 Leifeld & Co Method and apparatus for making stepped rims
US3846886A (en) * 1972-06-29 1974-11-12 Liefeld & Co Method for producing rims
US4117704A (en) * 1977-05-13 1978-10-03 Societe Coil Protection Service Method and apparatus for producing a bent angle piece from a sheet-metal
US4862719A (en) * 1988-01-20 1989-09-05 Comeq, Inc. Cylinder flanging machines
US5501093A (en) * 1993-05-28 1996-03-26 Gs-Hydro Oy Procedure and apparatus for forming a rectangular collar at the end of a pipe
US5640867A (en) * 1994-06-08 1997-06-24 Massee; Johan Method and apparatus for forming a rim on a lamp reflector
US6301781B1 (en) * 1996-03-15 2001-10-16 Jeffrey A. Hermanson Circular and oval flanged rings for connecting ducting and method of making

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1202144A (en) * 1968-01-23 1970-08-12 Bristowe Buckland Saxton Improvements in methods for the production of cylindrical flanged casings or reels and in apparatus therefor
DE2720825A1 (de) * 1977-05-09 1978-11-23 Coil Protection Service S R L Verfahren und vorrichtung zur herstellung von geschlitzten boerdelflanschen aus ebenen blechen oder baendern
FI89139C (fi) * 1992-04-10 1993-08-25 Gs Hydro Oy Foerfarande och anordning foer att forma en krage vid aendan av ett roer i raett vinkel

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498686A (en) * 1946-06-10 1950-02-28 Struthers Wells Corp Machine for flanging cylindrical shells
US2921549A (en) * 1955-11-30 1960-01-19 Earl L Schwenk Holding fixture for spin-forming blanks
US3779060A (en) * 1970-10-28 1973-12-18 Leifeld & Co Method and apparatus for making stepped rims
US3846886A (en) * 1972-06-29 1974-11-12 Liefeld & Co Method for producing rims
US4117704A (en) * 1977-05-13 1978-10-03 Societe Coil Protection Service Method and apparatus for producing a bent angle piece from a sheet-metal
US4862719A (en) * 1988-01-20 1989-09-05 Comeq, Inc. Cylinder flanging machines
US5501093A (en) * 1993-05-28 1996-03-26 Gs-Hydro Oy Procedure and apparatus for forming a rectangular collar at the end of a pipe
US5640867A (en) * 1994-06-08 1997-06-24 Massee; Johan Method and apparatus for forming a rim on a lamp reflector
US6301781B1 (en) * 1996-03-15 2001-10-16 Jeffrey A. Hermanson Circular and oval flanged rings for connecting ducting and method of making

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7464453B2 (en) 2002-04-05 2008-12-16 Metu-System Meinig Kg Process for butt joining two pipe segments and producing a connecting flange
US20080216539A1 (en) * 2005-07-08 2008-09-11 Manfred Meinig Method and Device for the Integral Molding of a Flange to the End of a Round or Oval Pipe of Thin-Walled Sheet Metal and Pipe Produced by the Method
US7908898B2 (en) 2005-07-08 2011-03-22 Metu Meinig Ag Method and device for the integral molding of a flange to the end of a round or oval pipe of thin-walled sheet metal and pipe produced by the method
US20120201360A1 (en) * 2006-10-19 2012-08-09 Embarq Holdings Company, Llc System and method for monitoring a connection of an end-user device to a network
US8718046B2 (en) * 2006-10-19 2014-05-06 Centurylink Intellectual Property Llc System and method for monitoring a connection of an end-user device to a network
US20150209991A1 (en) * 2012-09-03 2015-07-30 Kawasaki Jukogyo Kabushiki Kaisha Spinning forming method and spinning forming apparatus
US10549468B2 (en) * 2012-09-03 2020-02-04 Kawasaki Jukogyo Kabushiki Kaisha Spinning forming method and spinning forming apparatus
US20150343511A1 (en) * 2013-01-08 2015-12-03 Jaesoo Kim Apparatus for manufacturing long-neck flange by applying roller spinning and method therefor
US9724744B2 (en) * 2013-01-08 2017-08-08 Jaesoo Kim Apparatus for manufacturing long-neck flange by applying roller spinning and method therefor
CN117102310A (zh) * 2023-10-19 2023-11-24 山东兆鑫石油工具有限公司 不锈钢内衬防腐油管端面旋转式翻边以及焊接装置

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JP2004508936A (ja) 2004-03-25
CZ2003853A3 (cs) 2003-10-15
EP1320429A1 (de) 2003-06-25
NO20031337D0 (no) 2003-03-24
RU2003112016A (ru) 2004-12-20
PL200911B1 (pl) 2009-02-27
DE50103424D1 (de) 2004-09-30
PL359823A1 (en) 2004-09-06
HUP0302953A2 (en) 2003-12-29
AU2002218191A1 (en) 2002-04-02
CA2424583A1 (en) 2003-03-24
ES2225627T3 (es) 2005-03-16
IL155014A0 (en) 2003-10-31
ATE274381T1 (de) 2004-09-15
BR0114106A (pt) 2003-07-22
KR20030065482A (ko) 2003-08-06
EP1320429B1 (de) 2004-08-25
CZ297829B6 (cs) 2007-04-11
CN1466499A (zh) 2004-01-07
WO2002024369A1 (de) 2002-03-28

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