EP1238725A2 - Verfahren zur Herstellung von Blechplatten durch Ziehen über ein Werkzeug oder "Form" - Google Patents

Verfahren zur Herstellung von Blechplatten durch Ziehen über ein Werkzeug oder "Form" Download PDF

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Publication number
EP1238725A2
EP1238725A2 EP02290589A EP02290589A EP1238725A2 EP 1238725 A2 EP1238725 A2 EP 1238725A2 EP 02290589 A EP02290589 A EP 02290589A EP 02290589 A EP02290589 A EP 02290589A EP 1238725 A2 EP1238725 A2 EP 1238725A2
Authority
EP
European Patent Office
Prior art keywords
frame
cylinder
jaw
vertical
jacks
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.)
Granted
Application number
EP02290589A
Other languages
English (en)
French (fr)
Other versions
EP1238725B1 (de
EP1238725A3 (de
Inventor
Gilles Chancerelle
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.)
ACB
Original Assignee
ACB Pressure Systems
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 ACB Pressure Systems filed Critical ACB Pressure Systems
Publication of EP1238725A2 publication Critical patent/EP1238725A2/de
Publication of EP1238725A3 publication Critical patent/EP1238725A3/de
Application granted granted Critical
Publication of EP1238725B1 publication Critical patent/EP1238725B1/de
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
    • B21D25/00—Working sheet metal of limited length by stretching, e.g. for straightening
    • B21D25/02—Working sheet metal of limited length by stretching, e.g. for straightening by pulling over a die

Definitions

  • the present invention relates to a machine for forming parts by the drawing process, on a tool or form.
  • a machine of this type is described in document FR-2 650 205.
  • This machine, or press consists of an elongated frame which has at its central part, a table receiving the tool or form.
  • the part to be formed is for example a sheet; this sheet is taken between the jaws two jaws to be stretched, beyond its elastic limit, and to be pressed on the form.
  • jaws are arranged transversely to the frame, on the side and of the tool and each of them is movable longitudinally and vertically, at using several pairs of oscillating cylinders: almost horizontal cylinders and almost vertical cylinders.
  • the horizontal cylinders are movable in an angular sector, on both sides on the other side of the longitudinal horizontal plane under the effect of the vertical cylinders, and the cylinders vertical are, in the same way, mobile in an angular sector on both sides from a plane perpendicular to the longitudinal horizontal plane under the effect of the jacks horizontal. This possibility of cylinder movement provides, for each jaw, ability to move virtually all-round.
  • each jaw is carried out by means of oscillating crutches, arranged in the median plane longitudinal and vertical of the frame.
  • Each stand is telescopic. It is articulated to one end of the frame and, on the side of the jaws, it is movable in a guide U-shaped. The telescopic part of the stand is secured to the jaw of so as to maintain a point of said jaw in the median vertical longitudinal plane guide.
  • the present invention provides an alternative solution to the problem of guidance jaws relative to the frame.
  • the machine, or press consists of a horizontal frame equipped at its central part with a tool or form, installed transversely with, on both sides on the other side of said tool, jaws each actuated by two pairs of jacks oscillating: a pair of horizontal cylinders, anchored at the corresponding end of said frame and a pair of vertical cylinders anchored at the lower end of the portion central of the chair-shaped frame, each jaw and its cradle being guided by report to said built so that one of their points is maintained in a plane longitudinal and vertical of said frame, the means for holding said point of each jaw and cradle, in said vertical longitudinal plane, consist of means for guide arranged on the one hand, directly on the cylinder of one of the cylinders of maneuver and, on the other hand, on the frame, so as to keep the axis of said cylinder in said vertical longitudinal plane.
  • the guide cylinder moves in the frame while remaining centered in the plane vertical longitudinal and its cylinder constitutes a kind of oscillating slide, at the on the one hand, his butt which is articulated on a chair under the central part of the frame, along an axis perpendicular to the vertical longitudinal plane and with a immobilization in translation, and, on the other hand, its mouth which is provided with pads diametrically opposed which cooperate with fitted sliding surfaces on the frame, which surfaces are in the form of plates arranged parallel to said vertical longitudinal plane.
  • the jaw guide cylinders are constituted by the vertical cylinders located for example on the same side of the frame, in the same vertical longitudinal plane of guide.
  • Each jaw is further articulated by its cradle, on the end of the rod of its guide cylinder, by means of a spindle whose axis is perpendicular to said cylinder rod and centered in the guide plane, that is to say the longitudinal plane vertical of the frame.
  • the axis of the vertical guide cylinder, for each jaw is arranged so that it passes close to the jaws of said jaw.
  • the other jaw operating cylinders i.e. other cylinders that the vertical guiding cylinders of the latter are connected to the frame and to their respective jaws, by means of patellar joints and / or universal joints of the gimbal type.
  • the frame mainly comprises a structure longitudinal made up of two large lateral beams in the form of a box, connected between them, and a chair which extends under the central part of said structure, which chair is provided with a sole allowing its anchoring on the slab, at the bottom of a pit for example.
  • the beam-like structure and the chair are preferably, especially in the case of a very large press, two separate sets; this modular design allows easy transport of said press, and assembly said assemblies on site is carried out for example by bolting.
  • the part upper longitudinal structure forming the frame can be at ground level for example ; in this case the upper surface of the frame is equipped at the level of the passage of the rods of the vertical cylinders, of movable decks which accompany the movement of said rods, providing some security for operators likely to circulate on said frame.
  • This machine comprises a frame 1 which extends longitudinally, and its part central unit is provided with a table 2 on which is fixed a tool or form 3 intended for shaping of a sheet 4 shown in thin dashed lines.
  • Frame 1 includes a horizontal longitudinal structure 5 on which is fixed the table 2 and a base or chair 6 arranged under said structure 5, in line with table 2.
  • the machine can be housed in a pit 7, fixed on slab 8, at the bottom of this pit.
  • the chair 6 has for this purpose a base 9 which is fixed to the slab 8 by appropriate means.
  • the lateral ends of the structure 5 are for example supported at means of crutches 10 which extend to the bottom of the pit 7.
  • the sheet 4 is pinched on its lateral edges in jaws 11, and its shaping on the tool or shape 3, is carried out by means of a pair of jaws 12 which bear said jaws.
  • These jaws 12 are arranged transversely on the side and other of the tool 3 and they are operated by means of oscillating cylinders arranged in pairs: cylinders 13 called horizontal cylinders and cylinders 14 called vertical cylinders.
  • jacks are in fact anchored on the cradles 15 which serve as a structure for support for jaws 12.
  • a pair of horizontal jacks 13 extends between each cradle 15 and yokes 16 located at the ends of the longitudinal structure 5 of the frame 1.
  • Each cylinder 13 is articulated at the level of a yoke 16 by means of a articulation 17 of the patellar type.
  • the articulation of the rod 18 of the jack 13 on the cradle 15 is effected by means of a universal joint 19 with two axes 19 'and 19 "which are perpendicular to each other and perpendicular to the axis of said rod 18.
  • Each cylinder 13 has an angular movement whose amplitude H depends on the stroke of the vertical cylinder 14 with which it is associated.
  • the vertical jacks 14 (14 A and 14 B ) oscillate under the effect of the horizontal jacks 13 with an amplitude V which depends on the travel of each of these jacks 13.
  • Each pair of vertical cylinders 14 comprises cylinders which are of two types: - a vertical cylinder 14 A which provides the connection between the cradle 15 and the chair 6 and - a vertical cylinder 14 B which, in addition to the connection function of the cradle 15 to chair 6, performs a function of guiding said cradle and consequently of the jaw 12, relative to the frame 1.
  • the connecting jacks 14 A are articulated on the lower part of the chair 6, by means of a patellar joint 20 which is mounted in a yoke secured to the base 9.
  • the rod of these cylinders 14 A is articulated on the cradle 15 by means of a patellar articulation 21 whose axis is, on the one hand, perpendicular to the axis of said cylinder 14 A and, on the other hand, located in the longitudinal vertical plane of the frame 1.
  • the jacks 14 B have a double function since they serve on the one hand for the operation of the jaws 12 and on the other hand for guiding these jaws relative to the frame 1.
  • the cylinder 22 of the cylinder 14 B is articulated at its bottom, on the lower end of the chair 6, around an axis 23 which is transverse.
  • This axis 23 is taken in the yoke 24 of the base 9, at the lower part of the chair 6, which yoke performs a relative transverse immobilization of the cylinder 22.
  • the articulation of the jack 14 B on the axis 23, allows it to oscillate in the vertical longitudinal plane 25.
  • the upper end or mouth of the cylinder 22 is provided with pads 26; these pads are arranged on either side of the rod 27 of the jack, diametrically opposite. They are fixed to the mouth of the jack, on its flange 28 for example, and they can also be fixed between them, transversely.
  • pads 26 each cooperate with sliding surfaces arranged in the frame 1.
  • These sliding surfaces consist of plates 29 which are suitably fixed on the structure 5 of the frame 1.
  • the assembly consisting of pads 26 and surfaces 29 forms a slide for each cylinder 14 B.
  • the plates 29 have dimensions adapted to the oscillation capacity of the cylinders 14 B.
  • the pads 26 are rectangular with a length which corresponds substantially to the diameter of the cylinder 32 of the jack and a height of the order of half of said length. This slide makes it possible to maintain the jack 14 B in the longitudinal vertical plane 25 of the frame 1.
  • the rod 27 of the jack 14 B is secured to the cradle 15 by means of a pin 31 which is perpendicular to the axis of said jack and which is located in the longitudinal vertical plane 25.
  • the cylinder 14 B is dimensioned accordingly.
  • Each jaw 12 moves around an oscillation point 32 which corresponds to the intersection between the axis of the spindle 31 and the axis 33 of the jacks 14 B.
  • the axis 33 of the cylinder 14 B passes at the level of the jaws 11, that is to say at the level of the pinching zone of the sheet metal 4 to be shaped.
  • the structure 5 of the frame 1 lends itself to this guiding of the vertical jacks.
  • She is consisting of two beams 35 in the form of boxes, parallel to each other, which extend over the entire length of the frame 1.
  • Each beam is in the vertical plane a set of jacks associated with a jaw; this set consisting of a horizontal cylinder 13 and a vertical cylinder 14.
  • Each longitudinal vertical plane passes substantially half-length of half the length of each jaw 12, so as to balance efforts.
  • the frame 1 in two elements: on one side the structure 5 with its two longitudinal beams 35, and on the other hand, the chair 6. These two elements can be assembled on site for example by bolting. The great length of the press also justifies the presence of crutches 10 located at each end of structure 5.
  • the upper part of the structure 5 of the frame 1 can be located at ground level.
  • plates 36 can be installed above the orifices 37 which allow the rods of the vertical jacks 14 A and 14 B to pass , which plates move directly under the effect of the rods of said cylinders. These plates 36 hide the oblong holes 37 and offer a certain security for the operators who circulate on the frame 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Paper (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Machine Tool Units (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
EP02290589A 2001-03-09 2002-03-08 Verfahren zur Herstellung von Blechplatten durch Ziehen über ein Werkzeug oder "Form" Expired - Lifetime EP1238725B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0103239A FR2821771B1 (fr) 2001-03-09 2001-03-09 Machine de formage de pieces en tole par etirage sur un outil, ou "forme"
FR0103239 2001-03-09

Publications (3)

Publication Number Publication Date
EP1238725A2 true EP1238725A2 (de) 2002-09-11
EP1238725A3 EP1238725A3 (de) 2003-01-15
EP1238725B1 EP1238725B1 (de) 2007-08-01

Family

ID=8860935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02290589A Expired - Lifetime EP1238725B1 (de) 2001-03-09 2002-03-08 Verfahren zur Herstellung von Blechplatten durch Ziehen über ein Werkzeug oder "Form"

Country Status (7)

Country Link
US (1) US6742371B2 (de)
EP (1) EP1238725B1 (de)
CN (1) CN1248793C (de)
DE (1) DE60221454T2 (de)
ES (1) ES2290257T3 (de)
FR (1) FR2821771B1 (de)
RU (1) RU2274506C2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108638298A (zh) * 2018-05-09 2018-10-12 中国建筑第五工程局有限公司 一种跨座式单轨轨道梁的侧模系统及使用方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7340933B2 (en) * 2006-02-16 2008-03-11 Rohr, Inc. Stretch forming method for a sheet metal skin segment having compound curvatures
CN103121646B (zh) * 2013-03-06 2015-05-06 宁波天益齿轴齿轮有限公司 一种固定在沙漠里的千斤顶
CN103130143B (zh) * 2013-03-06 2015-05-06 宁波天益齿轴齿轮有限公司 一种千斤顶
CN113020389B (zh) * 2021-02-08 2022-10-18 中国重型机械研究院股份公司 一种蒙皮拉伸机
CN113020388B (zh) * 2021-02-08 2023-03-10 中国重型机械研究院股份公司 一种四自由度横向蒙皮拉伸机
CN113020387B (zh) * 2021-02-08 2023-03-10 中国重型机械研究院股份公司 一种具有三转一移特性的蒙皮拉伸机
CN117225969B (zh) * 2023-11-14 2024-03-15 中国重型机械研究院股份公司 一种蒙皮拉伸机用随动盖板及使用方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650205A1 (fr) * 1989-07-27 1991-02-01 Acb Machine a former par etirage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632493A (en) * 1950-09-02 1953-03-24 Richard Seifried Position-controlling means for gripping jaws
US2676638A (en) * 1952-07-26 1954-04-27 Richard Seifried Stretch-wrap forming machine
US3459025A (en) * 1967-12-07 1969-08-05 Cyril Bath Co Stretching fixture with quadrilateral linkage control of stretch head movements
US3990288A (en) * 1975-07-10 1976-11-09 Mackenzie Robert A Stretch-draw metal forming
SU554908A1 (ru) * 1975-08-06 1977-04-25 Предприятие П/Я М-5841 Секционный обт жной пресс

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650205A1 (fr) * 1989-07-27 1991-02-01 Acb Machine a former par etirage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108638298A (zh) * 2018-05-09 2018-10-12 中国建筑第五工程局有限公司 一种跨座式单轨轨道梁的侧模系统及使用方法

Also Published As

Publication number Publication date
RU2274506C2 (ru) 2006-04-20
DE60221454T2 (de) 2008-04-17
EP1238725B1 (de) 2007-08-01
EP1238725A3 (de) 2003-01-15
FR2821771A1 (fr) 2002-09-13
DE60221454D1 (de) 2007-09-13
CN1248793C (zh) 2006-04-05
ES2290257T3 (es) 2008-02-16
CN1381317A (zh) 2002-11-27
US20020124618A1 (en) 2002-09-12
US6742371B2 (en) 2004-06-01
FR2821771B1 (fr) 2003-08-29

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