WO2004105977A1 - Verfahren zur herstellung eines mit einem endseitigen abschlussdeckel versehenen hohlprofiles und eine wagenheberkonsole - Google Patents
Verfahren zur herstellung eines mit einem endseitigen abschlussdeckel versehenen hohlprofiles und eine wagenheberkonsole Download PDFInfo
- Publication number
- WO2004105977A1 WO2004105977A1 PCT/EP2004/004298 EP2004004298W WO2004105977A1 WO 2004105977 A1 WO2004105977 A1 WO 2004105977A1 EP 2004004298 W EP2004004298 W EP 2004004298W WO 2004105977 A1 WO2004105977 A1 WO 2004105977A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hollow profile
- lid
- axial
- cover
- edge
- Prior art date
Links
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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
-
- 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/049—Deforming bodies having a closed end
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S11/00—Vehicle modifications for receiving separate lifting, supporting, or manoeuvring devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2081—Jack receiving devices
Definitions
- the invention relates to a method for producing a hollow profile provided with an end cover and a jack bracket.
- a method for producing ends for hollow shafts is known from the prior art, which is described here by DE 100 49 048 C1.
- a plastic plug is inserted into the hollow shaft.
- the hollow shaft together with the plastic plug is inserted into an internal high-pressure forming tool, after which an axial punch is then applied to the end of the hollow shaft in which the plastic plug is located.
- an internal high pressure is generated in the hollow shaft, the effect of which, in conjunction with the axially effective pressure of the plunger, causes the hollow shaft wall to swell on both end faces of the plastic stopper.
- the plastic stopper is fixed captively in the hollow shaft, since it is framed by the upsets in a frictional and form-fitting manner.
- a jack bracket which consists of a sheet metal shell construction. on is formed.
- the jack bracket has connection areas via which it is attached to a lower sill area by means of spot welding.
- the welded shell construction has an opening into which a plastic plug is fitted, which has an indentation into which a pin of a jack can be inserted.
- the shell construction of the console is relatively complex in terms of process engineering and apparatus because of its multipart nature.
- the invention has for its object to provide a method according to which a bulged hollow profile provided with an end cover can be produced in a simple manner.
- a jack bracket is to be shown, which requires only little manufacturing effort and still ensures a high mechanical strength.
- the console Due to the use of a one-piece, circumferentially closed hollow profile as the base body of the jack console, the console is highly rigid, which can withstand very high mechanical loads without damage.
- the hollow profile can be ideally adapted to the periphery of the console by means of the internal high-pressure forming, these adaptations being expressed in bulges which can be represented in a simple manner in the internal high-pressure forming process due to the relatively low degrees of deformation.
- the attachment of the console to the lower area of the motor vehicle sill can be automated without further ado .
- For the local connection le ⁇ training of welding flanges is diglich required to be purchased at the corresponding end of the hollow section by relatively simple cutting and bending operations.
- the opposite end of the hollow profile is closed with an end cover on which the jack can be attached indirectly or directly.
- additional tools such as brackets and press-in tools, which otherwise were not necessary for external pressing of the cover in the hollow profile, are saved.
- the pressing is accomplished in a process-economical manner by introducing the axial punch into the hollow profile, which is absolutely necessary anyway for the sealing during the internal high-pressure forming process.
- the hollow profile remains true to the contour in the pressing area, without undesired folds and bulges.
- the bulges are then formed by introducing an internal high pressure into the interior of the hollow profile.
- the cover completely closes the hollow profile, the internal high pressure is introduced via the other end of the hollow profile.
- the cover is loosely inserted into the hollow profile outside the forming tool.
- a further advantageous development of the invention according to claim 3, which is to be seen as an alternative to the development according to claim 2, consists in that the end cover is fed to the hollow profile inserted in the forming tool by means of the axial plunger, the pressing being carried out when the cover is supplied.
- the supply of the end cover with the pressing is carried out in one operation in a process-economical manner.
- the end cover is centered on the axial ram before it is introduced into the hollow profile and is therefore arranged as desired.
- FIG 4 A further expedient development of the invention is shown in claim 4, in which, before the end cover is inserted into the hollow profile, the cover is formed with an outer diameter that is larger than the inner diameter of the hollow profile. Due to the specific design of the two diameters, there is a special one when the cover is inserted into the hollow profile high press fit if the axial plunger also has a pressure contour. In the other case results in a weaker interference fit, however, while a particular embodiment of the Anpresskontur Axialstem ⁇ pels can be omitted. However, for the given diameters, an entry slope at the edge of the cover is useful, so that the end cover can be inserted more easily into the hollow profile.
- the lid edge is detected by means of internal high pressure with simultaneous axial pushing of the axial ram through the hollow profile, with hollow profile material in an intermediate space delimited by a closing edge of the lid rim and an opposite shoulder of the axial ram by means of the pushing-on process is suppressed in cooperation with the internal high pressure. Due to the internal high pressure m connection with the contact pressure of the axial plunger, an inward thickening arises on the one hand on the hollow profile, which is applied to the edge of the cover; on the other hand, the edge of the lid is gripped by the space formed as a result of the hollow profile material flowing in as a result of the internal high pressure and the pushing-on process. This results in a positive connection between the hollow profile and the end cover, which further strengthens the hold of the two components to one another.
- a further advantageous embodiment of the invention is represented by claim 6.
- This relates to the formation of an opening in the lid base and the expansion of the hollow profile by means of a pressure fluid introduced into the interior of the hollow profile via a channel of the axial ram and the opening in the lid base.
- Formation of an opening in the lid bottom and the formation of a fluid channel in the axial plunger receives a multiple function in a highly useful manner, namely sealing the supply of the pressure fluid and pressing the edge of the cover onto the hollow profile.
- the opening on the lid base can later serve as a receptacle for another component after the hollow profile has been formed.
- a bottle-neck-shaped extension is formed on the cover around the opening of the cover base, into which a hollow-pin-like shape of the end face of the axial plunger is inserted. If the cover shaped in this way is already inserted into the hollow profile, the bottle-neck-shaped extension serves as a centering means for the axial stamp, which can then dock onto the end cover without jamming, its hollow-pin-like shape of the end face protruding through the opening in the cover base. This gives the axial punch an additional hold on the cover and - via this - on the hollow profile.
- the cover can be simply plugged together with the axial stamp so that the end cover is held captively on the axial stamp when it is fed into and imported into the hollow profile.
- the end edges of the lid edge are formed radially outwardly.
- the resulting annular collar creates an axial stop for the end cover, which is supported on the end edge of the hollow profile, so that the cover does not with the axially higher mechanical loads on the press joint of the hollow profile and end cover that are exerted from the cover side of the hollow profile can be printed into the interior of the hollow profile.
- a further advantageous embodiment of the invention is represented by the content of claim 10.
- the edge of the lid is perforated and after pressing the lid with the hollow profile, a hollow profile material which can be integrated into the forming tool is pressed into the hole of the lid edge formed in each case.
- the console has an opening on the lid base, which forms a receptacle for a stopper on which a jack can be attached. Due to the exact positioning of the end cap within the hollow profile, which in turn is manufactured without manufacturing tolerances due to the internal high-pressure forming, the opening for receiving the stopper is very precisely defined. This makes it possible for a lifting platform designed as a jack, which is controlled fully automatically, to always be positioned at the correct position on the jack console when the motor vehicle is visited in the workshop.
- FIG. 3 shows the arrangement from FIG. 1 in the pressed position of the end cover and hollow profile with an inserted axial punch
- FIG. 5b shows an enlarged section of the position of the end cover from FIG. 5a
- FIG. 6 shows, for a method according to the invention, an arrangement of hollow profile, end cover and an internal high-pressure forming tool and an axial stamp in the pressed position of the axial stamp with a slide acting on the end edges of the hollow profile and end cover,
- FIG. 7b shows an enlarged section of the press composite of hollow profile and seal shown in FIG. end caps at the point at which hollow profile material is pushed into the hole in the end cover
- FIG. 8 shows, for a method according to the invention, in longitudinal section an arrangement of an internal high-pressure forming tool, an axial punch, a hollow profile and an end cover in a press position with a portion of the engraving of the forming tool that widens conically towards the axial punch,
- FIG. 9 is an exploded view of a jack bracket according to the invention in a side view
- FIG. 10 shows the jack bracket from FIG. 9 in a perspective view after the pressing of the hollow profile and end cover.
- FIG. 1 shows an open internal high-pressure forming tool 1 with an upper die 2 and a lower die 3, which delimit a mold space 5 with an inside engraving 4.
- a hollow profile 6 is already inserted into the lower die 3, which can be made of a light metal or steel and can consist of a drawn tube or a rolled and then longitudinally welded blank as a blank.
- the end cover 7 is cup-shaped, the bottom 9 of which lies on the side facing the hollow profile 6.
- the cover 7 can be a deep-drawn sheet metal part or Cast part, in particular injection molded part.
- the axial ram 8 tapers towards its end cover 7 facing the end face 10 via a shoulder 11, from where it merges into the planar end face 10 via spherically rounded contact flanks 12.
- the rounding of the flanks 12 is intended to prevent the end cover 7 from being damaged by an otherwise existing sharp edge when the axial plunger 8 is inserted into the end cover 7 or when it is pressed with the hollow profile.
- the height of the paragraph 11 is designed so that it is as large as the wall thickness of the hollow profile 6 and the end cover 7 taken together.
- the diameter of the axial ram 8 in the region of its pressure flanks 12 is greater than the inside diameter of the end cover 7.
- the course of the edge 13 of the end cover 7 is essentially modeled on the spherical contour of the axial plunger 8 in the region of its pressure flanks 12.
- the inside diameter of the end cover edge 13 is of course larger than the diameter of the axial punch 8 in the region of its pressure flanks 12.
- the outer edge 13 of the end cap 13 has an all-round circumference in this area compared to the inner diameter of the hollow profile ⁇ .
- the axial ram 8 has a central channel 14 on, which opens at the front side 10.
- the end cover 7 has a central opening 15 in its base 9.
- the hollow profile 6 is inserted into the forming tool 1, which is then closed.
- the end cover 7 can previously be loosely inserted into the hollow profile 6 or the end cover 7 can be pushed onto the axial plunger 8. In the latter case, the opening of the end cover 7 is aligned with the mouth opening of the channel 14 of the axial plunger 8.
- the axial plunger 8 with the end cover 7 is inserted into the hollow profile end, as a result of which the end cover 7 with the hollow profile end due to its dimensions and the pressure flanks 12 of the A- xialstkovs 8 is pressed.
- the press assembly thus achieved, which is shown in FIG.
- FIG. 2 A variant of the axial punch 8 and the end cover 7 is shown in FIG. 2.
- the end face 10 of the axial punch 8 has a hollow pin-like shape 17 which is penetrated by the channel 14. According contour
- the end cover 7 has a bottle-shaped extension 18 into which the shape 17 of the axial plunger 8 can be inserted.
- a particularly good hold of the end cover 7 on the axial punch 8 is achieved.
- the end edges 19 of the cover edge 13 can be shaped so as to protrude radially outward. This creates a lip-like ring collar.
- the axial punch 8 is pushed in even further in the press-bonded position, so that sufficient hollow profile material can be supplied in the region of the bulge 37 to be produced, and thus a process-reliable expansion of the hollow profile 6 is ensured.
- a thickening 20 is formed on the hollow profile 6 in the direct connection to the pressed area on the one hand and on the other hand the hollow profile material at the continuing profile end into one of the end edge 19 of the end cover edge 13 and the opposite paragraph 11 of the axial punch 8 limited space 21.
- the lid edge 13 Due to the thickening 20 which presses the lid edge 13 inwards and the hook-like end 22 of the hollow profile end, the lid edge 13 is clipped in a form-fitting manner towards its end, as a result of which the end lid 7 is held particularly well on the hollow profile ⁇ as a result of the axial fixation achieved.
- the internal high pressure is relaxed and the axial punch 8 is pulled out of the internal high pressure forming tool 1, after which the forming tool 1 is opened and the finished assembly of hollow profile 6 and end cover 7 is removed.
- a slide 23 can be seen in FIG. 6, which is integrated in the forming tool 1 within a guide bore 24 that extends radially to the engraving 4.
- the end cover 7 is released from the press fit with the hollow profile 6 and pulled along, the slide 23 engages in an axially extending groove 25 of the axial plunger 8 which is open towards the hollow profile end.
- the terminating edges 19 and 26 of the cover edge 13 on the one hand and the hollow profile 6 on the other hand abut on the side wall 27 of the slider 23 facing them.
- FIG. Another variant of the invention is shown in FIG. After the bulge 37 has been formed, in the region of the pressing, a plurality of guide bores 28, which can be guided in the forming tool 1 m and run radially to the engraving 4 of the forming tool 1, integrally stamps 29 hollow profile material into corresponding holes 30 in the edge of the cover 13, which are pressed on the end cover 7 while or briefly be produced after production.
- the engraving 4 is flat after the molding space 5 Opening angle expanded conically to the axial punch 8.
- the hollow profile 6 and the end cover 7 are pressed onto this conically enlarged section 31 of the engraving 4 when the axial plunger 8 is inserted, with areas corresponding to the contour 31 corresponding to the section 31 of the engraving 4 being formed on the cover edge 13 and on the hollow profile 6.
- a jack console 32 is shown which was produced using the method according to the invention.
- the end cap 7 with its bottle-neck-shaped extension 18 is separated from the hollow profile 6 in the illustration.
- the hollow profile 6 also has at its end 7 facing away from the end 33 a plurality of flanges 34, which are partially converted and serve on the one hand as a stop and on the other hand as joint surfaces for a lower area of a sill of the motor vehicle.
- passages 36 are formed in a side wall 35 of the bracket 32, via which lateral engagement in the hollow profile 6 on the adjacent inner walls is simple is possible. In a process-economical manner, it is conceivable to produce these feedthroughs 36 by punching during the internal high pressure forming in which the hollow profile 6 is bulged.
- FIG. 10 shows the press connection of the hollow profile 6 with the end cover 7, the end edge 26 of the hollow profile 6 projecting beyond the end edge 19 of the edge 13 of the end cover 7.
- the opening 15 on the lid base 9 serves as a receptacle for a stopper to which a jack can be attached.
- the method according to the invention is not limited to the manufacture of jack brackets.
- the use of the method for all internal high-pressure components with end covers, which are intended to at least partially close one or more holes on the component, such as structural elements in the motor vehicle, in particular also end nodes in a frame structure, is conceivable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002526378A CA2526378A1 (en) | 2003-05-28 | 2004-04-23 | Method for the production of a hollow profile provided with a terminal lid, and jack console |
JP2006529698A JP2006528074A (ja) | 2003-05-28 | 2004-04-23 | 端部に閉鎖カバーを備えた中空部材を製造する方法及びジャッキブラケット |
EP04729051A EP1626825A1 (de) | 2003-05-28 | 2004-04-23 | Verfahren zur herstellung eines mit einem endseitigen abschlussdeckel versehenen hohlprofiles und eine wagenheberkonsole |
US10/558,248 US20070163319A1 (en) | 2003-05-28 | 2004-04-23 | Method for the production of a hollow profile provided with a terminal lid, and jack console |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10324276.7 | 2003-05-28 | ||
DE10324276A DE10324276B4 (de) | 2003-05-28 | 2003-05-28 | Verfahren zur Herstellung eines mit einem endseitigen Abschlussdeckel versehenen Hohlprofils und eine Wagenheberkonsole |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004105977A1 true WO2004105977A1 (de) | 2004-12-09 |
Family
ID=33482255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/004298 WO2004105977A1 (de) | 2003-05-28 | 2004-04-23 | Verfahren zur herstellung eines mit einem endseitigen abschlussdeckel versehenen hohlprofiles und eine wagenheberkonsole |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070163319A1 (de) |
EP (1) | EP1626825A1 (de) |
JP (1) | JP2006528074A (de) |
CA (1) | CA2526378A1 (de) |
DE (1) | DE10324276B4 (de) |
WO (1) | WO2004105977A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012066099A1 (de) * | 2010-11-19 | 2012-05-24 | Thyssenkrupp Presta Teccenter Ag | Verfahren und komponentensatz zur herstellung eines rohrförmigen bauteils, insbesondere einer gebauten nockenwelle |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5866324B2 (ja) * | 2013-09-30 | 2016-02-17 | 本田技研工業株式会社 | 中空状構造部品のハイドロフォーム成形方法 |
DE102016101199A1 (de) | 2016-01-25 | 2017-07-27 | Technische Universität Chemnitz | Umformverfahren zur Herstellung von profilierten Hohlkörpern |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3616901A1 (de) * | 1985-05-21 | 1986-11-27 | Musashi Seimitsu Kogyo K.K., Toyohashi, Aichi | Verfahren zum herstellen einer aufbau-nockenwelle |
DE4139332A1 (de) * | 1990-12-20 | 1992-06-25 | Audi Ag | Halterung an einer fahrzeugkarosserie, insbesondere als gehaengeaufnahme |
DE19528309A1 (de) * | 1995-08-02 | 1997-02-13 | Daimler Benz Ag | Selbsttragende Kraftfahrzeugkarosserie mit seitlichen Türschwellern |
DE10049048C1 (de) * | 2000-09-29 | 2002-01-03 | Etc Bleistahl Gmbh & Co Kg | Verfahren zum Herstellen von Enden für Hohlwellen |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4425984C2 (de) * | 1994-07-22 | 2000-07-27 | Wagon Automotive Gmbh | Verfahren zum Herstellen eines hohlen Bauteils aus Metall mit in Längsrichtung unterschiedlichen Querschnitten |
-
2003
- 2003-05-28 DE DE10324276A patent/DE10324276B4/de not_active Expired - Fee Related
-
2004
- 2004-04-23 WO PCT/EP2004/004298 patent/WO2004105977A1/de active Application Filing
- 2004-04-23 EP EP04729051A patent/EP1626825A1/de not_active Withdrawn
- 2004-04-23 JP JP2006529698A patent/JP2006528074A/ja not_active Withdrawn
- 2004-04-23 CA CA002526378A patent/CA2526378A1/en not_active Abandoned
- 2004-04-23 US US10/558,248 patent/US20070163319A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3616901A1 (de) * | 1985-05-21 | 1986-11-27 | Musashi Seimitsu Kogyo K.K., Toyohashi, Aichi | Verfahren zum herstellen einer aufbau-nockenwelle |
DE4139332A1 (de) * | 1990-12-20 | 1992-06-25 | Audi Ag | Halterung an einer fahrzeugkarosserie, insbesondere als gehaengeaufnahme |
DE19528309A1 (de) * | 1995-08-02 | 1997-02-13 | Daimler Benz Ag | Selbsttragende Kraftfahrzeugkarosserie mit seitlichen Türschwellern |
DE10049048C1 (de) * | 2000-09-29 | 2002-01-03 | Etc Bleistahl Gmbh & Co Kg | Verfahren zum Herstellen von Enden für Hohlwellen |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012066099A1 (de) * | 2010-11-19 | 2012-05-24 | Thyssenkrupp Presta Teccenter Ag | Verfahren und komponentensatz zur herstellung eines rohrförmigen bauteils, insbesondere einer gebauten nockenwelle |
CN103442822A (zh) * | 2010-11-19 | 2013-12-11 | 蒂森克虏伯普利斯坦技术中心股份公司 | 制造管形构件、特别是组合的凸轮轴的方法和部件组 |
CN103442822B (zh) * | 2010-11-19 | 2016-01-13 | 蒂森克虏伯普利斯坦技术中心股份公司 | 制造管形构件、特别是组合的凸轮轴的方法和部件组 |
Also Published As
Publication number | Publication date |
---|---|
DE10324276B4 (de) | 2005-10-13 |
EP1626825A1 (de) | 2006-02-22 |
US20070163319A1 (en) | 2007-07-19 |
CA2526378A1 (en) | 2004-12-09 |
DE10324276A1 (de) | 2005-01-27 |
JP2006528074A (ja) | 2006-12-14 |
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