EP3010664A1 - Vorrichtung zur herstellung mindestens eines hinterschnitts in ein geschlitztes oder geschlossenes blechprofil - Google Patents
Vorrichtung zur herstellung mindestens eines hinterschnitts in ein geschlitztes oder geschlossenes blechprofilInfo
- Publication number
- EP3010664A1 EP3010664A1 EP14723395.1A EP14723395A EP3010664A1 EP 3010664 A1 EP3010664 A1 EP 3010664A1 EP 14723395 A EP14723395 A EP 14723395A EP 3010664 A1 EP3010664 A1 EP 3010664A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- outer core
- inner core
- sections
- core portion
- core
- 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
Links
- 239000002184 metal Substances 0.000 claims abstract description 31
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 239000011265 semifinished product Substances 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 238000004049 embossing Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000003892 spreading Methods 0.000 description 5
- 239000011324 bead Substances 0.000 description 2
- 206010052122 Dellen Diseases 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
- B21D5/015—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments for making tubes
-
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Definitions
- the invention relates to a device for producing at least one
- Undercut in a slotted or closed sheet metal profile comprising a core which is inserted into the sheet metal profile or as a support core for a sheet metal semi-finished product, from which the sheet metal profile is produced, is used.
- Continuous or discontinuous forming processes may be used to produce at least partially closed profiles (slot profiles) or semi-finished products
- closed profiles made of sheet metal are used as structural components, for example, as bumpers and impact energy absorbing hollow beams.
- the undercuts such as transverse to the longitudinal axis of a hollow support beads, indentations, surveys or similar form elements, have.
- Such undercuts can serve, for example, to increase the component rigidity and / or to influence the deformation behavior in the event of a crash.
- secondary shaped elements such as beads or similar embossings, in longitudinally welded hollow profiles by means of a mandrel arranged in the hollow profile produced from a sheet metal blank is proposed in DE 10 2004 046 687 B3 (see paragraph [0032] there).
- the mandrel has an embossing device for embossing the sheet placed around it.
- a mandrel may not have length-constant secondary structures for embossing, provided that it is possible to remove the mandrel after the forming, which is the case for example in a conical basic structure.
- the embossing device can be designed as an embossing die movable beyond the circumference of the mandrel and provided in recesses of the mold halves surrounding the mandrel as counterparts for the shaping produced by the embossing device.
- the known from DE 10 2004 046 687 B3 proposal is not or hardly suitable to produce substantially cylindrical hollow sections with undercuts, in particular with inwardly directed undercuts, since the mandrel described in such cases after embossing the undercut no longer remove the closed hollow profile.
- the object of the invention was to provide a device that allows the cost-effective production of undercuts in a slotted or closed sheet metal profile in a simple manner
- the device according to the invention comprises a core which is inserted into the slotted or closed sheet metal profile or which serves as a support core for a sheet metal semi-finished product, from which the slotted or closed sheet metal profile is produced, and is further characterized in that the core at least two outer Core portions, at least one of which has at least one recess or at least one projection for forming an undercut in the sheet metal profile, and that between the at least two outer core portions, an inner core portion is arranged, which is movable relative to the outer core portions and having at least one active surface in a given direction of movement of the inner core portion relative to the outer
- Core portions are inclined or cam-shaped, wherein moving the inner core portion in the predetermined direction of movement relative to the outer core portions latter are moved apart and then moving the inner core portion in the reverse direction of movement
- Core sections is linearly displaceable. This embodiment corresponds particularly well to the working steps in a transfer or line process, so that a core unit according to the invention formed in such a process can be relatively easily and reliably integrated.
- the core unit divided into the outer core sections and the inner core section may also be referred to as an incident core.
- a further advantageous embodiment of the device according to the invention provides that the active surface of the inner core portion is made double, wherein the two active surfaces are formed on opposite sides of the inner core portion, and wherein the outer core portions each have a wavy inner surface which is one of the active surfaces of the inner
- Core section is assigned. This can be effected by a relatively small linear displacement of the inner core portion, a relatively large spread of the outer core portions.
- the outer core portions are movably supported on a holder, wherein the holder has an opening penetrated by the inner core portion.
- the holder is preferably provided with a guide for the movably held on her outer core sections. This contributes to a reliable function of the core unit composed of said core sections.
- the arrangement of the guide on the holder is favorable for a compact design of the device according to the invention, in particular the said core unit.
- a further advantageous embodiment of the device according to the invention is characterized in that the inner core portion against the action of at least one compression spring in the predetermined direction of movement is displaceable relative to the outer core portions, wherein the compression spring is supported on the holder.
- the inner core portion may be advantageously attached to a pressure body having at least one of a guide rod interspersed opening, wherein the guide rod is fixed in this case to said holder.
- the guide rod can be arranged in the compression spring, so that the latter is supported radially on the guide rod.
- the spring force of the compression spring or compression springs is chosen to be greater than the frictional forces that must be overcome for an automatic re-dividing the inner core portion relative to the outer core portions.
- the outer core portions are linearly movable together with the inner core portion, the outer core portions is associated with an end stop, and wherein the inner core portion is moved in the predetermined direction of movement relative to the outer core portions, when the outer Core sections are pressed against the end stop.
- said end stop is provided with a guide for the outer core sections in the movement apart and the subsequent approaching the same.
- this guide is formed from a web-shaped guide element which has a tapering in the direction of the outer core portions cross-sectional profile, wherein in the guide element facing the front ends of the outer core portions and the inner core portion recesses for receiving the guide element are formed. The guide element serves at the same time to lock the outer core portions
- FIG. 1 - Fig. 5 different positions of a core unit of an inventive
- Fig. 6 shows a portion of the core unit of Fig. 1 in a different perspective looking at the side of a core holding plate on which the outer core portions are guided;
- Fig. 7 shows a portion of connectable to an end stop of the
- Fig. 8 is a closed sheet metal profile, in which by means of a
- Fig. 9 shows another example of a closed sheet metal profile, in which by means of a device according to the invention directed to the outside
- the device shown in the drawing is used to produce undercuts in a slotted or closed hollow profile, which is made of sheet metal.
- the device comprises a three-part core 1, which may also be referred to as a core unit or core.
- the core unit 1 is elongate and comprises two outer core sections 1.1, 1.2, each having, for example, a plurality of recesses 2, 3 for forming inwardly directed undercuts in a closed sheet metal profile.
- an inner core section 1.3 is arranged, which is linear relative to the outer core sections 1.1, 1.2
- Active surfaces 1.31, 1.32 of the inner core portion 1.3 facing inner surfaces 1.11, 1.21 of the outer core sections 1.1, 1.2 are also wavy
- the wave-shaped active surfaces 1.31, 1.32 of the inner core section 1.3 and the inner surfaces 1.11, 1.21 of the outer core sections 1.1, 1.2 are preferably substantially complementary to one another.
- the three core sections 1.1, 1.2, 1.3 have substantially the same width or depth, so that the mutually parallel side surfaces of the incident core 1 each have flush-mounted side faces 1.12, 1.22, 1.33.
- the recesses 2, 3 for forming inwardly directed undercuts in the slotted or closed sheet-metal profile are arranged on the outer core section 1.3 facing away from the outer side of the respective outer core portion 1.1, 1.2.
- the recesses 2, 3 are formed, for example, channel-shaped and extend transversely to the longitudinal axis of the incident core (core unit) 1. Furthermore, the recesses 2, 3 may be formed dellen- or dome-shaped.
- the outer core sections 1.1, 1.2 are held movably at one of their ends on a plate-shaped holder 4.
- the holder (core holding plate) 4 has a passage opening 4.1, which is penetrated by a substantially straight section 1.34 of the inner core section 1.3.
- the straight portion 1.34 of the inner core portion has, for example, a substantially rectangular cross-section, wherein the passage opening 4.1 of the core holding plate 4 a
- the guide 4.2 is formed groove-like and intersects the passage opening 4.1.
- guide pins 5 extend parallel to the longitudinal axis of the incident core (core unit) 1 and are guided (through hole 6.1) in a plate-shaped pressure body (pressure plate) 6.
- the pressure plate 6 is fixedly connected to the end of the straight portion of the inner core portion 1.3, for example, welded or screwed.
- the guide pins 5 are with compression springs
- coil springs 7 which are arranged between the core holding plate 4 and pressure plate 6 and are pushed onto the guide pin 5.
- the outer core sections 1.1, 1.2 are substantially linearly movable together with the inner core section 1.3, the core sections 1.1, 1.2, 1.3 being assigned an end stop 8. In the position of the incident core 1 shown in FIG. 2, the outer core sections 1.1, 1.2 abut with their core holding plate 4
- the end stop 8 is provided with a guide 8.1 for the outer core sections 1.1, 1.2.
- the guide 8.1 is formed as a web-shaped guide element, which has a in the direction of the outer core sections 1.1, 1.2 tapered cross-sectional profile, such as a trapezoidal profile, in the guide element 8.1
- the guide element 8.1 serves as a locking of the core sections 1.1, 1.2, 1.3. Furthermore, the end stop 8 facing each other stop surfaces 8.2, 8.3, which limit the movement apart of the outer core sections 1.1, 1.2.
- Fig. 1 a start position is shown, in which the compression springs 7 largely relaxed and the three-part core unit (incident core) 1 is not spread.
- FIG. 2 shows an intermediate position after the core unit 1 has been displaced linearly in the direction of the end stop 8 and the two outer core sections 1.1, 1.2 touch the end stop 8 with their end facing away from the core holding plate 4.
- FIG. 3 a subsequent to the intermediate position shown in FIG. 2 end position is shown.
- the pressure plate 6 was previously moved against the spring force of the compression springs 7 linearly in the direction of the arrow PI.
- a displacement of the inner core portion 1.3 has been effected, whereby the two outer core sections were 1.1, 1.2 displaced to the outside and thus a Execute lifting or spreading movement.
- the here example forked or U-shaped end stop 8 serves as a limitation of the lifting or
- FIG. 4 shows a situation during the withdrawal movement of the core unit 1. It can be seen that the core unit 1 is pulled away linearly in the direction of the arrow P4 from the end stop 8, due to the previously compressed compression springs 7 first the pressure plate 6 is moved together with the inner core portion 1.3 and the two outer core sections 1.1, 1.2 first still remain in engagement with the end stop 8. As a result, the inner core section 1.3 is thus pulled and at the same time reduces the total height of the three-part incidence core 1 or the distance of the outer core sections 1.1, 1.2, which is additionally indicated in Fig. 4 by the arrows P5 and P6. As a result, the production of closed hollow profiles and slot profiles with undercuts in a transfer or line process is possible.
- FIG. 5 shows the situation at the end of the working cycle. After pulling the inner core section 1.3, the entire core unit 1 has been moved away from the end stop 8 and retracted (see arrow P4). The core unit 1 thus releases the sheet metal profile provided with undercuts for further transport in the transfer or line process.
- the situation according to FIG. 5 corresponds to the starting position illustrated in FIG.
- FIG. 1 An example of a closed sheet metal profile B with inwardly directed undercuts 9.1, 9.2, which can be produced by means of the core unit 1 according to FIGS. 1 to 7, can be seen in FIG.
- the undercuts 9.1 are channel-shaped or bead-shaped, while the undercuts are 9.2 dellenförmig.
- other geometry forms for the hollow profile to be produced are possible.
- Direction of rotation relative to the outer core portions 1.1, 1.2 is cam-shaped.
- the cam-shaped active surface or the cam of the rotatable inner core portion (not shown here) is received in the non-expanded position of the outer core portions, for example, in a hollow chamber in one of the outer core portions with play, from which he swung out by rotation of the inner core portion and against an inner surface of the other outer core portion can be pressed, so that when continuing this rotary or pivoting movement apart (spreading) of the outer core sections 1.1, 1.2 results.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013106287.3A DE102013106287A1 (de) | 2013-06-17 | 2013-06-17 | Vorrichtung zur Herstellung mindestens eines Hinterschnitts in ein geschlitztes oder geschlossenes Blechprofil |
PCT/EP2014/058975 WO2014202271A1 (de) | 2013-06-17 | 2014-05-02 | Vorrichtung zur herstellung mindestens eines hinterschnitts in ein geschlitztes oder geschlossenes blechprofil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3010664A1 true EP3010664A1 (de) | 2016-04-27 |
EP3010664B1 EP3010664B1 (de) | 2017-03-01 |
Family
ID=50693653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14723395.1A Active EP3010664B1 (de) | 2013-06-17 | 2014-05-02 | Vorrichtung zur herstellung mindestens eines hinterschnitts in ein geschlitztes oder geschlossenes blechprofil |
Country Status (9)
Country | Link |
---|---|
US (1) | US9895734B2 (de) |
EP (1) | EP3010664B1 (de) |
JP (1) | JP6420827B2 (de) |
KR (1) | KR102148556B1 (de) |
CN (1) | CN105324191B (de) |
DE (1) | DE102013106287A1 (de) |
ES (1) | ES2625745T3 (de) |
MX (1) | MX364429B (de) |
WO (1) | WO2014202271A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9707723B2 (en) * | 2015-07-15 | 2017-07-18 | Patrick Allen Diehl | Embossing tool |
JP7194935B2 (ja) * | 2018-11-27 | 2022-12-23 | フタバ産業株式会社 | 管状部材の加工用金型、及び、部材の製造方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US805868A (en) * | 1904-07-12 | 1905-11-28 | New Castle Stamping Company | Expanding-punch. |
US3459028A (en) * | 1965-10-08 | 1969-08-05 | Inland Steel Co | Method and apparatus for making a side wall for a prismatic container |
US3877282A (en) * | 1972-04-26 | 1975-04-15 | Texaco Inc | Swaging tool for joining two telescopic pipe ends |
JPS59220225A (ja) * | 1983-05-30 | 1984-12-11 | Toshio Kato | 中空型材の凸型模様の加工方法及びその装置 |
DE9102285U1 (de) * | 1991-02-27 | 1991-05-29 | Ebm Erich Buechele Maschinenbau Gmbh, 8901 Meitingen, De | |
WO1996020798A1 (de) * | 1995-01-04 | 1996-07-11 | Oberburg Engineering Ag | Drehturm mit expandierwerkzeugen |
JP3253540B2 (ja) * | 1996-10-18 | 2002-02-04 | 第一高周波工業株式会社 | 角形管体用の中子装置 |
JPH10156452A (ja) * | 1996-11-28 | 1998-06-16 | Sango Co Ltd | 消音器の外筒成形機 |
DE50104374D1 (de) * | 2000-11-23 | 2004-12-09 | Frei Ag Wittenbach | Vorrichtung zum Prägen von Mantelflächen an zwei- und dreiteiligen Dosenrümpfen |
US6557318B2 (en) | 2001-05-07 | 2003-05-06 | Trim Trends Co, Llc | Expandable link system and method of making same |
DE10247549B3 (de) * | 2002-10-11 | 2004-05-06 | Rothenberger Ag | Expansionswerkzeug für Hohlkörper mit einem elektrohydraulischen Antrieb |
DE102004046687B3 (de) * | 2004-09-24 | 2006-06-01 | Thyssenkrupp Steel Ag | Verfahren und Vorrichtung zur Herstellung eines längsnahtgeschweißten Hohlprofils |
JP4995665B2 (ja) * | 2007-08-24 | 2012-08-08 | 昭和電工株式会社 | パイプと複数個の被接合部材との接合方法 |
CN101352741A (zh) * | 2008-08-27 | 2009-01-28 | 无锡市海溪防腐设备厂 | 一种筒状体用轧筋机 |
DE102008049245A1 (de) * | 2008-09-26 | 2010-04-01 | F.W. Brökelmann Aluminiumwerk GmbH & Co. KG | Verfahren zur Umformung von Hohlprofilen |
DE102008064320A1 (de) * | 2008-12-20 | 2010-06-24 | Cantec Gmbh & Co. Kg | Vorrichtung zum Aufweiten von Rohrstücken |
CN201969761U (zh) * | 2010-11-16 | 2011-09-14 | 湖南望新建设集团股份有限公司 | 薄壁金属管凹槽成型装置 |
JP5833879B2 (ja) * | 2011-10-07 | 2015-12-16 | 株式会社ショーワ | 溝加工装置および溝加工方法 |
-
2013
- 2013-06-17 DE DE102013106287.3A patent/DE102013106287A1/de not_active Ceased
-
2014
- 2014-05-02 KR KR1020167000574A patent/KR102148556B1/ko active IP Right Grant
- 2014-05-02 EP EP14723395.1A patent/EP3010664B1/de active Active
- 2014-05-02 ES ES14723395.1T patent/ES2625745T3/es active Active
- 2014-05-02 US US14/897,635 patent/US9895734B2/en active Active
- 2014-05-02 WO PCT/EP2014/058975 patent/WO2014202271A1/de active Application Filing
- 2014-05-02 JP JP2016518881A patent/JP6420827B2/ja not_active Expired - Fee Related
- 2014-05-02 CN CN201480034620.5A patent/CN105324191B/zh not_active Expired - Fee Related
- 2014-05-02 MX MX2015016717A patent/MX364429B/es active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
WO2014202271A1 (de) | 2014-12-24 |
US9895734B2 (en) | 2018-02-20 |
CN105324191B (zh) | 2017-11-28 |
MX364429B (es) | 2019-04-25 |
CN105324191A (zh) | 2016-02-10 |
JP6420827B2 (ja) | 2018-11-07 |
KR102148556B1 (ko) | 2020-08-26 |
JP2016521638A (ja) | 2016-07-25 |
US20160121383A1 (en) | 2016-05-05 |
ES2625745T3 (es) | 2017-07-20 |
DE102013106287A1 (de) | 2014-12-18 |
EP3010664B1 (de) | 2017-03-01 |
KR20160020481A (ko) | 2016-02-23 |
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