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EP0688614A1 - Verfahren und Vorrichtung zum Prägen einer Ausformung in eine Blechtafel - Google Patents

Verfahren und Vorrichtung zum Prägen einer Ausformung in eine Blechtafel Download PDF

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Publication number
EP0688614A1
EP0688614A1 EP95106041A EP95106041A EP0688614A1 EP 0688614 A1 EP0688614 A1 EP 0688614A1 EP 95106041 A EP95106041 A EP 95106041A EP 95106041 A EP95106041 A EP 95106041A EP 0688614 A1 EP0688614 A1 EP 0688614A1
Authority
EP
European Patent Office
Prior art keywords
embossing
sheet
sheet metal
movement
die
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Withdrawn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
EP95106041A
Other languages
German (de)
English (en)
French (fr)
Inventor
Tomislav Matievic
Markus Dr. Meier
Werner Urech
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.)
Elpatronic AG
Original Assignee
Elpatronic AG
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 Elpatronic AG filed Critical Elpatronic AG
Publication of EP0688614A1 publication Critical patent/EP0688614A1/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Withdrawn legal-status Critical Current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
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles

Definitions

  • the invention relates to a method for embossing a shape in a metal sheet or a welded sheet metal blank with different sheet thickness.
  • the invention further relates to a device for performing the method.
  • metal sheets are being manufactured, which are composed of several flat sheet metal parts of different thicknesses, e.g. by roll seam or laser welding. These metal sheets are transformed into a structural component, e.g. an automobile body part, which has precisely defined properties due to the different material thicknesses.
  • the metal sheets are largely and automatically manufactured in large systems including automatic welding machines, conveyor systems and storage stations at a high rate. When such metal sheets are stacked, an oblique stack results due to their non-uniform thickness, which cannot be handled and transported. It is therefore known to emboss beads (i.e. small troughs, molds) in the thinner sections, in some cases also in the thicker sections of the metal sheets with conventional presses, in which the metal sheets are stationary during the embossing process, which enable uniform stacking.
  • emboss beads i.e. small troughs, molds
  • the invention has for its object to improve the embossing process so that the high cadence of the automatic welding and conveyor systems is not reduced by the embossing and can be fully utilized, and to put this process in a more favorable cost-benefit ratio.
  • the invention has for its object to provide an apparatus for performing the method. This is achieved by a device with the features of claim 5.
  • FIGS 1 and 2 schematically show a sheet 4 (so-called plate), which has been assembled from sheet metal parts 1, 2 and 3 of different thicknesses by welding. With 5 and 6, the welds are designated.
  • the sheet metal parts 1, 2 and 3 point in the Usually a different thickness t1, t2 and t3.
  • Such metal sheets 4 are used, for example, in the automotive industry as so-called tailored blanks for the production of deep-drawn body parts with precisely defined properties. For this purpose, the metal sheet 4 as a whole is formed into the desired part.
  • the metal sheets or blanks 4 are produced in large numbers with high cadence in fully or partially automatic systems which include automatic welding devices, stacking devices and conveyor systems.
  • the respective welding seams 5 and 6 can be carried out by the automatic welding machines at speeds of up to 10 m / min. or more are welded.
  • Intermediate products, for example sub-boards from sheet metal parts 1 and 2, and the end products 4 are stored in a stack. So that such metal sheets 4 can be arranged to form a substantially uniform stack 8, for example on a pallet 7 (FIG. 3), it is known to provide the metal sheets with embossed shapes on one or more of the thin and in some cases also the thick sheet metal parts so that the thickness differences of the sheets for stacking can be compensated.
  • FIG. 4 schematically shows the edge region 13 of the stack 8 in an enlarged form.
  • the individual sheet metal parts 1, 1 'and 1''of the plates 4, 4', 4 '' are provided with formations 9, 9 'and 9''which give the thin sheet metal parts 1 in the area of these formations such a thickness that corresponds approximately to the thickness t2 of the thick sheet metal part 2.
  • Such a shape or bead could also be provided on the sheet metal part 3.
  • the boards 4 can be stacked into a substantially uniform stack 8 that is not at an angle.
  • the formation of the beads 9 can take place at any time.
  • Individual sheet metal parts can be embossed or pressed before welding, partial blanks can be treated accordingly, or the finished blank 4 can be provided with the beads.
  • the beads described are usually only used for stacking and have no function in the finished sheet metal part. Therefore, as few and as small as possible beads are generally embossed so that the finished part is not affected by the beads.
  • FIG. 5 shows a rough schematic of the embossing of the beads according to the prior art.
  • a circuit board 4 or only part of a circuit board is guided on a conveyor system by a conventional stamping device with a stamp 11 and a die 11 '.
  • the bead in the board 4 it is stopped on the conveyor line and the bead is formed in the sheet metal part by vertical movement of the punch and die.
  • the board 4 is accelerated again and transported away from the embossing device.
  • the blanks must each be stopped on the conveyor line, held stationary for a certain time and then accelerated again. This is annoying in the case of circuit board production with high cadence and requires a lot of space.
  • the embossing device limits the product feed.
  • Several embossing stations connected in parallel lead to an uneconomical solution: in addition to the effort to purchase an additional embossing device, the control and handling of the production system must also be modified.
  • FIG. 6 now shows a coarse schematic form of an embossing device according to the invention.
  • the board 4 or the board part is also conveyed along a conveyor.
  • the embossing device is now such that the embossing can take place during the conveying movement, so that the board 4 does not have to be stopped and accelerated again.
  • This is shown schematically in FIG. 4 by means of a rotatable disk 12 with a cam and a likewise rotatable disk 12 'with a groove.
  • an eccentric disc could also be used.
  • FIG. 7 shows a side view
  • FIG. 8 shows a partial illustration of a section along the line AA of FIG. 7.
  • the disk 22 can be rotated eccentrically about an axis of rotation 28 in the direction of rotation of the arrow 27 by a drive, not shown.
  • the cam 23 and the groove 25 form the punch and the die for embossing the bead 9 into the metal sheet 4, as can be seen in FIG.
  • the disk 22 In the rest position, the disk 22 is in a position in which the cam assumes the waiting position 24 shown in broken lines. In this position, a metal sheet 4 on the conveyor device can pass the two disks 22 and 22 'unhindered due to the eccentricity.
  • a control device (not shown) gives the command to attach a stamp in the sheet metal sheet 4 conveyed through it, the disk 22 is driven and accelerated in the direction of the arrow 27, so that the cam 23 is accelerated out of the waiting position 24 and essentially with it a peripheral speed impinges on the metal sheet 4, which corresponds to the conveying speed of the metal sheet.
  • this cam embosses the desired bead 9 into the metal sheet.
  • the disk 22 ′ with the groove 25 serves as a die for the cam 23 acting as a stamp this disc is also driven synchronously with the disc 22 or with the advance of the metal sheet 4.
  • the disk 22 with the cam 23 again assumes the waiting position in which the cam is in position 24.
  • the disc 22 can be slowed down after immersing it in the groove 25 or after impressing the bead, making the remaining rotation to the rest position. Due to the eccentricity on both sides, the sheet does not touch the roller.
  • the disk 22 with the cam 23 can be designed as shown in FIG. 8.
  • the disc 22 is composed of three individual discs 30, 31 and 32.
  • the middle disk 31 has the actual cam 23.
  • the disks 30 and 32 are also eccentric in the area of the cam 23 and have the shoulders 38 and 39.
  • the eccentric disk 22 ′ must be driven synchronously with the disk 22, so that the cam 23 and the cooperating shoulders 38, 40 and 39, 41 act on the sheet metal 4 at the same time.
  • the stamping tool must not only perform a vertical stamping movement, but also a movement in the feed direction.
  • the depth of the embossing can be adjusted within a certain range by vertically adjusting the axes of rotation of the disks 22 and 22 ' become. Different discs with different cam or groove depths can also be used.
  • the start signal for introducing the embossing takes place in a conventional manner by the control device operating the system, as is also the case with the conventional embossing method.
  • the control device also ensures that the beads are not always embossed at the same location as is known per se and can be seen in FIG. 4.
  • FIG. 9 shows a further exemplary embodiment in a roughly schematic representation.
  • the embossing tool 50, 51 can carry out a longitudinal movement along the web 52 or 53 and thus follow the advance of the sheet 4. After embossing the bead, the tool is lifted from the sheet and returned to the waiting position. The stamp and die move as indicated by the arrows a - d.
  • the embossing movement is carried out by means of actuating elements 54, 55, the longitudinal movement can take place in one direction through the sheet metal feed itself; in the other direction it is carried out by a drive, not shown, which at most also acts in the feed direction.
  • the embossing is preferably carried out just after the respective weld, e.g. also combined with an oil and brush station for the sheet. In this way, the handling of the sheets in the overall system can be significantly simplified.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP95106041A 1994-06-20 1995-04-22 Verfahren und Vorrichtung zum Prägen einer Ausformung in eine Blechtafel Withdrawn EP0688614A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH193994 1994-06-20
CH1939/94 1994-06-20

Publications (1)

Publication Number Publication Date
EP0688614A1 true EP0688614A1 (de) 1995-12-27

Family

ID=4222135

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95106041A Withdrawn EP0688614A1 (de) 1994-06-20 1995-04-22 Verfahren und Vorrichtung zum Prägen einer Ausformung in eine Blechtafel

Country Status (5)

Country Link
EP (1) EP0688614A1 (ja)
JP (1) JP2859561B2 (ja)
KR (1) KR960000335A (ja)
BR (1) BR9502860A (ja)
CA (1) CA2151771A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010042454A1 (de) * 2010-10-14 2012-04-19 Bayerische Motoren Werke Ag Vorrichtung zum Prägen von Abstandssicken
DE202016003821U1 (de) 2016-06-17 2016-07-19 Anchor Lamina Gmbh Vorrichtung zum Prägen von Abstandssicken in Blechplatinen und Platinenschneidwerkzeug mit wenigstens einer solchen Vorrichtung
US9623470B1 (en) 2016-05-12 2017-04-18 Delaco Steel Corp. Metal processing apparatus and method for forming off-set dimples in metal sheets
CN112139325A (zh) * 2020-09-24 2020-12-29 安徽玄同机电科技有限公司 一种金属薄板边部压花卷曲设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4489285B2 (ja) * 2000-12-22 2010-06-23 菊池プレス工業株式会社 シーム溶接装置及びその方法
CN112246945A (zh) * 2020-09-30 2021-01-22 吉安持凡电子科技有限公司 一种大型板材冲压的冲压方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR486940A (fr) * 1917-09-26 1918-05-16 Detroit Pressed Steel Co Procédé de fabrication d'articles en tole estampée ou emboutie
US3528272A (en) * 1968-10-28 1970-09-15 Eli I Robinsky Machine for deforming sheet metal from the flat state into a tubular form
US4277868A (en) * 1979-04-30 1981-07-14 The Boeing Company Machine and method for single pass taper milling
US4732082A (en) * 1986-06-25 1988-03-22 Carl Ireton Apparatus and method for mounting embossing rollers in a press line

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4852854A (ja) * 1971-11-05 1973-07-25
JPS56126033A (en) * 1980-03-05 1981-10-02 Mitsubishi Electric Corp Production of blanked core
JPH0352721A (ja) * 1989-07-18 1991-03-06 Honda Motor Co Ltd 非磁性板材並びに非磁性板材の突部形成装置及び非磁性板材の分離方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR486940A (fr) * 1917-09-26 1918-05-16 Detroit Pressed Steel Co Procédé de fabrication d'articles en tole estampée ou emboutie
US3528272A (en) * 1968-10-28 1970-09-15 Eli I Robinsky Machine for deforming sheet metal from the flat state into a tubular form
US4277868A (en) * 1979-04-30 1981-07-14 The Boeing Company Machine and method for single pass taper milling
US4732082A (en) * 1986-06-25 1988-03-22 Carl Ireton Apparatus and method for mounting embossing rollers in a press line

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010042454A1 (de) * 2010-10-14 2012-04-19 Bayerische Motoren Werke Ag Vorrichtung zum Prägen von Abstandssicken
US9623470B1 (en) 2016-05-12 2017-04-18 Delaco Steel Corp. Metal processing apparatus and method for forming off-set dimples in metal sheets
US9884358B2 (en) 2016-05-12 2018-02-06 Delaco Steel Corp Method for forming off-set dimples in metal sheets
US10369611B2 (en) 2016-05-12 2019-08-06 Delaco Steel Corp. Metal processing apparatus and method for forming off-set dimples in metal sheets
US11292043B2 (en) 2016-05-12 2022-04-05 Delaco Steel Corp. Metal processing apparatus and method for forming off-set dimples in metal sheets
DE202016003821U1 (de) 2016-06-17 2016-07-19 Anchor Lamina Gmbh Vorrichtung zum Prägen von Abstandssicken in Blechplatinen und Platinenschneidwerkzeug mit wenigstens einer solchen Vorrichtung
CN112139325A (zh) * 2020-09-24 2020-12-29 安徽玄同机电科技有限公司 一种金属薄板边部压花卷曲设备

Also Published As

Publication number Publication date
CA2151771A1 (en) 1995-12-21
KR960000335A (ko) 1996-01-25
BR9502860A (pt) 1996-01-30
JP2859561B2 (ja) 1999-02-17
JPH0810859A (ja) 1996-01-16

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