EP0080438B1 - Vorrichtung zur Formung von Flanschen an hohlzylindrischen Blechwerkstücken - Google Patents

Vorrichtung zur Formung von Flanschen an hohlzylindrischen Blechwerkstücken Download PDF

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Publication number
EP0080438B1
EP0080438B1 EP82830276A EP82830276A EP0080438B1 EP 0080438 B1 EP0080438 B1 EP 0080438B1 EP 82830276 A EP82830276 A EP 82830276A EP 82830276 A EP82830276 A EP 82830276A EP 0080438 B1 EP0080438 B1 EP 0080438B1
Authority
EP
European Patent Office
Prior art keywords
flanging
machine frame
machine
workpiece
flanging machine
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
Application number
EP82830276A
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English (en)
French (fr)
Other versions
EP0080438A2 (de
EP0080438A3 (en
Inventor
Pietro Maggi
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
Application filed by Individual filed Critical Individual
Priority to AT82830276T priority Critical patent/ATE19966T1/de
Publication of EP0080438A2 publication Critical patent/EP0080438A2/de
Publication of EP0080438A3 publication Critical patent/EP0080438A3/en
Application granted granted Critical
Publication of EP0080438B1 publication Critical patent/EP0080438B1/de
Expired 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
    • 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 generally relates to a flanging machine for metal sheet workpieces having a hollow cylindrical symmetry.
  • the flanging machines are machines of small/middle power which form beads or rims on workpieces having a cylindrical symmetry, and formed of metal sheets having small/middle thickness.
  • These flanging machines have generally a frame provided with a pair of parallel extending roller spindles of which the one is placed over the other, the lower spindle being in a fixed position and the upper spindle being adjustable in height to control the pressure exerted on and the depth of the rim.
  • the pair of spindles are rotated and the rollers, by pressing on the metal sheet, form the rim or the beading.
  • US-A-1 634 057 discloses a flanging machine for rotatable workpieces comprising a shaping mechanism formed of a pair of roller spindles, a pair of adjustable rolls of cylindrical shape, a pivotal mounting of the roller/spindle assembly on the machine frame, driving means for the pivotal movement, supporting means for the rotatable workpiece on the machine frame.
  • a flanging machine having a hollow cylindrical symmetry, of the type comprising a shaping mechanism formed of a pair of parallel extending roll spindles, a pair of adjustable rolls of cylindrical shape, a pivotal mounting of the roll/spindle assembly on the machine frame, driving means for the pivotal movement, means for supporting the rotatable workpiece on the machine frame, characterized in that said pivoting assembly includes a motor driving the spindles with the associated driving elements and in that the supporting means for the rotatable workpiece on the machine frame comprise a ring having an outer diameter corresponding to the inner diameter of the workpiece and being supported by a wheel rotatable mounted on said machine frame, means being provided for guiding the workpiece during all the flanging operation.
  • the means for pivoting the above mentioned assembly are formed of a hydraulic and/or pneumatic cylinder connected on the one hand to the machine frame and on the other hand to the pivoting assembly.
  • the flanging machine generally indicated with the numeral 1, includes a machine frame 2 formed of a pair of side walls 3 connected to each other by cross-beams 4 and a front upright 5. Pivotally mounted to the side walls 3 by means of pins 7 is a pivoting frame 6 supporting the parallel extending spindles 8 and 9 placed one over the other, the lower spindle 8 being in a fixed position and the upper spindle 9 being adjustable in height by conventional means, not shown.
  • Each of the spindles 8 and 9 supports at the front end thereof a cylindrical roller 10 and 11 respectively, which are intended to perform the flanging operation.
  • the driving elements of the spindles 8 and 9 are enclosed within a box 12 to which the driving motor 13 is secured which is connected to a reduction gear 14 through a pulley and belt drive, generally indicated with 15.
  • the spindles 8, 9, the cylindrical rollers 10, 11, the motor 13, the reduction gear 14 and the driving elements enclosed within the box 12 are fastened to the pivoting frame 6.
  • the pivoting frame 6 is also connected to the machine frame 1 through a hydraulic cylinder 16 operated by a pump 17.
  • a pin 18 On the upright 5 of the machine frame 1 a pin 18 is mounted, which carries a flanged wheel 19 supporting a calibrating ring 20 placed directly in front of the lower cylindrical roller 10 and forming an upper tangential point therewith.
  • a spacer 21 serves to the exact positioning of the supporting flanged wheel 19 and therefore of the calibrating ring 20 in front of the lower roller 10.
  • the calibrating ring 20 bears also on a pair of rolling bearings 22 secured to the upright 5 of the machine frame 1, in an adjustable manner to accommodate different diameters of rings 20.
  • the calibrating ring 20 is provided to support the end of the tube to be flanged and to prevent this tube end from being deformed during the flanging operation, since the ring has an outer diameter corresponding to the inner diameter of the tube to be flanged.
  • a disc 23 is provided, which supports and guides the tube to be flanged, and is rotatably mounted in the pin 18.
  • the pivot axis 0 of the pivoting frame 6 exactly intersects the tangential points of the pair of cylindrical rollers 10, 11 therebetween and of the calibrating ring 20 with the lower roller 10.
  • the operation of the flanging machine according to the invention is very simple. Assume that a metal sheet tube is to be flanged having an outer diameter of 300 mm and a wall thickness of 2 mm, on the supporting wheel 19 a calibrating ring having an outer diameter of 286 mm will be applied, which will be retained in position by the wheel 19 through the flanged portion thereof and the rolling bearings 22 will be adjusted accordingly.
  • the tube to be flanged is inserted on the guide disc 23 and is slid until the end thereof is placed between the cylindrical rollers 10 and 11 against an abutment 24 provided on the spindle 8 acting as a stop for the edge of the tube on the rollers 10, 11.
  • the upper roller 11 is adjusted in height until it bears against the outer surface of the tube and the motor 13 is energized, which will rotate the spindles 8 and 9 and therefore the cylindrical rollers 10, 11 and the tube.
  • rollers 10, 11 lie with their axes perpendicular to the tube axis and the tube length pressed between the rollers is bent at 90° to the tube axis.
  • a flange having a height corresponding to the length of the rollers 10, 11 and the pivoting frame 6 will be in the position shown in dashed line in Figure 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Basic Packing Technique (AREA)

Claims (4)

1. Vorrichtung zur Formung von Flanschen an hohlzylindrischen Blechwerkzeugen von der Art bestehend aus einem Formungsmechanismus, der gebildet ist aus zwei sich parallel erstreckenden Walzenspindeln (8,9), zwei regulierbaren zylinderförmigen Walzen (10,11), einer schwenkbaren Montage der Walzen/Spindeleinheit (8,9,10,11) am Rahmen (2) der Vorrichtung, Betätigungsmitteln (16) für die Schwenkbewegung, Stützmitteln für das rotierende Werkstück am Rahmen (2) der Vorrichtung, dadurch gekennzeichnet, daß die schwenkbare Einheit (6) einen die Spindeln (8,9) mit den zugehörigen Übertragungselementen antreibenden Motor (13) umfaßt, und daß die Stützmittel für das rotierende Werkstück am Vorrichtungsrahmen (2) einen Ring (20), der einen dem Innendurchmesser des Werkstückes entsprechenden Außendurchmesser aufweist und der durch ein auf den Vorrichtungsrahmen (2) drehbar montiertes Rad (19) abgestützt ist, wobei Mittel (23) zur Führung des Werkstükkes während des gesamten Flanschformungsvorganges vorgesehen sind.
2. Vorrichtung zur Formung von Flanschen nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel (16) für die Schwenkbewegung der einheit (6) einen hydraulischen und/oder pneumatischen Zylinder (16) einschließen, der einerseits mit dem Vorrichtungsrahmen (2) und andererseits mit der schwenkbaren Einheit (6) verbunden ist.
3. Vorrichtung zur Formung von Flanschen nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Ring (20) derart angeordnet ist, daß mit dem unteren Walzenumfang (10) der Vorrichtung ein oberer Tangentialpunkt gebildet wird.
4. Vorrichtung zur Formung von Flanschen nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel zur Führung des Werkstückes von zylinderförmiger Symmetrie wenigstens zwei Wälzlager (22), die den Umfang von Ring (20) berühren, und eine auf den Vorrichtungsrahmen (2) drehbar montierte Scheibe (23) einschließen.
EP82830276A 1981-11-19 1982-11-09 Vorrichtung zur Formung von Flanschen an hohlzylindrischen Blechwerkstücken Expired EP0080438B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82830276T ATE19966T1 (de) 1981-11-19 1982-11-09 Vorrichtung zur formung von flanschen an hohlzylindrischen blechwerkstuecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2519481 1981-11-19
IT25194/81A IT1139812B (it) 1981-11-19 1981-11-19 Bordatrice-flangiatrice per pezzi a simmetria cilindrica in lamiera

Publications (3)

Publication Number Publication Date
EP0080438A2 EP0080438A2 (de) 1983-06-01
EP0080438A3 EP0080438A3 (en) 1983-08-03
EP0080438B1 true EP0080438B1 (de) 1986-05-28

Family

ID=11215979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82830276A Expired EP0080438B1 (de) 1981-11-19 1982-11-09 Vorrichtung zur Formung von Flanschen an hohlzylindrischen Blechwerkstücken

Country Status (4)

Country Link
EP (1) EP0080438B1 (de)
AT (1) ATE19966T1 (de)
DE (1) DE3271448D1 (de)
IT (1) IT1139812B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3939016A1 (de) * 1989-11-25 1991-05-29 Xaver Lipp Vorrichtung zum formen eines flansches oder dergleichen, insbesondere am ende eines duennwandigen metallrohres
CN111590364B (zh) * 2020-06-22 2024-08-13 大连弘大特种风机有限公司 一种圆筒内翻边机床

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1634057A (en) * 1925-03-06 1927-06-28 Taylor James Hall Machine for shaping pipes
US1782641A (en) * 1928-06-20 1930-11-25 Wild Otto Machine for flanging plate disks
FI73152C (fi) * 1979-05-28 1987-09-10 Waertsilae Oy Ab Anordning foer kragning av roer.

Also Published As

Publication number Publication date
ATE19966T1 (de) 1986-06-15
IT8125194A0 (it) 1981-11-19
DE3271448D1 (en) 1986-07-03
EP0080438A2 (de) 1983-06-01
IT1139812B (it) 1986-09-24
EP0080438A3 (en) 1983-08-03

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