EP3088098A1 - Formgebung durch tiefziehen mit negativwinkel-gleitstück - Google Patents

Formgebung durch tiefziehen mit negativwinkel-gleitstück Download PDF

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Publication number
EP3088098A1
EP3088098A1 EP16162993.6A EP16162993A EP3088098A1 EP 3088098 A1 EP3088098 A1 EP 3088098A1 EP 16162993 A EP16162993 A EP 16162993A EP 3088098 A1 EP3088098 A1 EP 3088098A1
Authority
EP
European Patent Office
Prior art keywords
slider
tool
angle
frame
stamping
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Withdrawn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
EP16162993.6A
Other languages
English (en)
French (fr)
Inventor
Eric RUSSOLO
Yves LANTERNIER
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP3088098A1 publication Critical patent/EP3088098A1/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Withdrawn legal-status Critical Current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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/32—Perforating, i.e. punching holes in other articles of special shape
    • B21D28/325—Perforating, i.e. punching holes in other articles of special shape using cam or wedge mechanisms, e.g. aerial cams
    • 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
    • B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • B21D19/082—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws for making negative angles
    • B21D19/084—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws for making negative angles with linear cams, e.g. aerial cams

Definitions

  • the invention relates to the field of shaping of sheet metal elements, in particular of a motor vehicle body. More particularly, the invention relates to the field of forming stamping by means of a stamping press.
  • the figure 1 shows two known configurations of such tooling.
  • the image on the left shows a first configuration 1 where the direction of sliding of the slider 4 on the upper frame 2 is horizontal.
  • the slider 4 contacts the cam 6 on the lower frame (not shown) and slides along it.
  • the direction of sliding of the slider on the cam is inclined and corresponds to the working direction of the tool 10 for forming the stamping 8, said tool 10 being placed on the slider 4.
  • the image on the right shows a second configuration 1 'where the sliding direction of the slider 4' on the upper frame 2 'is inclined upwards relative to the horizontal.
  • the sliding direction of the slider 4 'on the cam 6' defines the working direction of the tool 10 'relative to the stamping 8'.
  • the latter is less inclined relative to the horizontal than in the first configuration. This is due to the inclination of the sliding direction of the slider 4 'on the upper frame 2'.
  • the angle ⁇ (of the direction of the slider slides) must always be between 0 ° and 40 °, that is to say be zero or positive, to allow work directions significantly inclined relative to the vertical. Vertical working direction does not require sliders.
  • the published patent document FR 2 991 204 A1 shows for this purpose a stamping tool comprising a slide whose slide direction on the upper frame is horizontal, that is to say has a zero inclination angle.
  • the published patent document US 2002/0121122 A1 also shows a stamping tool comprising a slider whose direction of the rails on the upper frame forms an angle with the horizontal, measured in the working direction of the slider, which is positive. This means that the slide moves upwards relative to the upper frame during the working phase, that is to say, shaping the stamped with the slide.
  • the object of the invention is to provide more freedom in the choice of working directions of a slide on a press press tooling.
  • the invention relates to a forming tool of a stamping with a stamping press, comprising: an upper frame with a slide; a frame lower with a cam adapted to cooperate by sliding with the slider during a combination of the upper and lower frames, for moving said slider to the stamped to perform a shaping operation; remarkable in that the direction of sliding of the slider on the upper frame forms an angle ⁇ with the horizontal, measured in the working direction of said slider when said frame is in the working position on the press, which is greater than 0 ° and directed downwardly so that the slider descends relative to said frame when bringing together the upper and lower frames.
  • the cam is advantageously fixed with the lower frame.
  • the slide may have a general shape of triangle whose two sides form the sliding directions on the upper frame and sliding on the cam.
  • a tool may be mounted on the slide, the tool may be in particular a cutting punch and / or deformation, or a cutting blade.
  • the cam has a direction of sliding with the slider, which forms an angle ⁇ with the horizontal, measured in the working direction of the slider when the lower frame is in the working position on the press , between 55 ° and 90 ° and directed downwards.
  • the angle ⁇ is less than 35 °, preferably less than 25 °, more preferably less than 15 °.
  • the angle y between the sliding direction of the slide on the upper frame and the sliding direction of said slide on the cam is between 50 ° and 80 °, preferably between 50 ° and 70 ° more preferably between 55 ° and 65 °.
  • the angle ⁇ is equal to the angle ⁇ minus the angle ⁇ .
  • the lower frame comprises a surface for receiving the stamping, said surface comprises an edge adapted to cooperate with a tool attached to the slide.
  • the tool is a cutting blade of an edge of the stamping.
  • the upper frame comprises a presser slidably mounted against an elastic force on said frame, said presser being able to exert pressure on the stamping during the approach of the lower and upper frames.
  • the subject of the invention is also a process for forming a stamped article by means of a forming tool mounted on a stamping press, which is remarkable in that the tooling is in accordance with the invention and comprises a step of approaching the upper and lower frames for the forming of the stamped, the slider down from the upper frame during said approximation.
  • the slider cuts an edge of the stamping during the step of bringing the upper and lower frames closer together.
  • the measures of the invention are interesting in that they make it possible to provide working directions of a slider less inclined relative to the horizontal while maintaining a kinematics and a distribution of efforts similar to those common in conventional sliders. with sliding angles on the frame zero or positive.
  • the figure 3 schematically illustrates the orientations of the slide directions and work of a shaping tool slide according to the invention.
  • the tooling comprises an upper frame with a slide slidably mounted on said frame by means of slideways, in a direction represented by the arrow 112 forming a negative angle ⁇ with the horizontal.
  • the tooling also comprises a lower frame with a cam having a sliding surface with the slide, whose orientation is represented by the arrow 114 forming an angle ⁇ with the horizontal.
  • the orientation of the arrows 112 and 114 express the working directions of the slider, that is to say the directions of relative and absolute displacement, respectively, of the slider during its displacement to the stamped for its shaping.
  • the shaping can be a cut and / or a folding.
  • the angles ⁇ and ⁇ are thus measured in the direction of work of the directions in question.
  • the angle ⁇ between the two directions 112 and 114 is advantageously between 50 ° and 80 °, preferably between 50 ° and 70 °, more preferably between 55 ° and 65 °, in order to limit the stress components unfavorable to the movement of the slide.
  • the fact of providing a negative angle ⁇ , that is to say located below the horizontal, has the effect that the force, directed vertically downwards, transmitted by the upper frame to the slide will have a component oriented in the sliding direction 112 and directed away from the working direction of the slide.
  • This configuration thus makes it possible to obtain working directions between 55 ° and 90 °, that is to say closer to the vertical, while maintaining a kinematics compatible with the rules of good practice, precisely the kinematics of the sliders. with a zero or positive angle ⁇ .
  • FIGS. 4 to 6 illustrate the kinematics of a formatting tool according to the invention.
  • the figure 4 illustrates the tool 101, more particularly a detail of the tool 101 showing the slider 104 on the upper frame 102 at the beginning of the shaping of the stamping 108.
  • the latter is disposed on a punch 122 with a door edge on the other hand to be cut by the blade 110 fixed to the slide 104.
  • the latter is slidably mounted on the upper frame 102 by means of the slideways 118.
  • the sliding direction of these slides is represented by the arrow 112 which corresponds to at arrow 112 of the figure 3 .
  • the slider 104 comprises a sliding surface 120 with the cam 106.
  • the contact surface thereof with the sliding surface 120 of the slider is represented by the arrow 114 which corresponds to the arrow 114 of the slider. figure 3 .
  • the cam 106 and the punch 122 are advantageously fixed rigidly to the lower frame 116.
  • the upper frame 102 is in the high position, namely that the slider 104 is not yet in contact with the cam 106.
  • the figure 5 illustrates tooling 101 of the figure 4 at a later stage of forming the stamp.
  • the upper frame 102 has begun its downward movement to the point that the slider 104, more precisely its sliding surface 120 with the cam 104, is in contact with the cam and starts a sliding movement thereon.
  • the figure 6 illustrates tooling 101 Figures 4 and 5 at a later stage than that of the figure 5 that is, where the upper frame 102 continues its downward movement and causes the slide 106 to move along the slideways 118 and along the cam 106 toward the embossment 110.
  • the cutting blade 108 has sheared the edge of It can be observed that the direction of the cam 106 is essentially parallel to the lateral face of the cutting blade 110.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
EP16162993.6A 2015-04-27 2016-03-30 Formgebung durch tiefziehen mit negativwinkel-gleitstück Withdrawn EP3088098A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1553753A FR3035341B1 (fr) 2015-04-27 2015-04-27 Mise a forme par emboutissage avec coulisseau a angle negatif

Publications (1)

Publication Number Publication Date
EP3088098A1 true EP3088098A1 (de) 2016-11-02

Family

ID=53274752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16162993.6A Withdrawn EP3088098A1 (de) 2015-04-27 2016-03-30 Formgebung durch tiefziehen mit negativwinkel-gleitstück

Country Status (2)

Country Link
EP (1) EP3088098A1 (de)
FR (1) FR3035341B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020121122A1 (en) 2001-03-05 2002-09-05 Mitsuo Matsuoka Negative-angle forming die
DE10340509A1 (de) * 2003-09-03 2005-03-31 Bayerische Motoren Werke Ag Keiltriebwerkzeug mit zueinander verstellbaren Elementen zum schneidlosen Formen eines Blechwerkstückes in einer Presse
FR2991204A1 (fr) 2012-06-01 2013-12-06 Peugeot Citroen Automobiles Sa Presse d'emboutissage de pieces en tole comportant une contre-depouille.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020121122A1 (en) 2001-03-05 2002-09-05 Mitsuo Matsuoka Negative-angle forming die
DE10340509A1 (de) * 2003-09-03 2005-03-31 Bayerische Motoren Werke Ag Keiltriebwerkzeug mit zueinander verstellbaren Elementen zum schneidlosen Formen eines Blechwerkstückes in einer Presse
FR2991204A1 (fr) 2012-06-01 2013-12-06 Peugeot Citroen Automobiles Sa Presse d'emboutissage de pieces en tole comportant une contre-depouille.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Aerial Cam Unit General Description of UCMSC and UCMSF", 5 November 2010 (2010-11-05), XP055259584, Retrieved from the Internet <URL:http://www.sankyo-oilless.co.jp/en/pdf/UCMSC_F80.pdf> [retrieved on 20160318] *

Also Published As

Publication number Publication date
FR3035341B1 (fr) 2017-12-01
FR3035341A1 (fr) 2016-10-28

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