CN108247282A - For manufacturing the method for the hollow profile of the closing of automobile shafts - Google Patents
For manufacturing the method for the hollow profile of the closing of automobile shafts Download PDFInfo
- Publication number
- CN108247282A CN108247282A CN201611234347.8A CN201611234347A CN108247282A CN 108247282 A CN108247282 A CN 108247282A CN 201611234347 A CN201611234347 A CN 201611234347A CN 108247282 A CN108247282 A CN 108247282A
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- CN
- China
- Prior art keywords
- slab
- molded
- profile
- axial clearance
- hollow profile
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2310/00—Manufacturing methods
- B60B2310/30—Manufacturing methods joining
- B60B2310/302—Manufacturing methods joining by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2310/00—Manufacturing methods
- B60B2310/30—Manufacturing methods joining
- B60B2310/318—Manufacturing methods joining by adhesive bonding, e.g. glueing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Invention shows with describe it is a kind of for manufacture automobile shafts closing hollow profile (2) method, include the following steps：A) slab (1) is prepared by metallic plate, wherein the slab (1) is in the longitudinal direction at least one length (L) and in the horizontal at least one width (B) or with profile, b) it is molded the slab (1), wherein produce the profile of the opening with the longitudinally extending channel (5) in slab (1), c) it is molded the side (6 of the slab (1), 7), it wherein produces the hollow profile (8) with perimeter (U) and with axial clearance (9) and d) engages axial clearance (9).In order to realize the engagement of hollow profile (2) with high repeatable accuracy, it is proposed that be molded the slab (1) in this way, that is, particularly generate compression in metallic plate level at least in the region of axial clearance (9).
Description
Technical field
The present invention relates to a kind of for manufacturing the method for the hollow profile of the closing of automobile shafts, include the following steps：A) by
Metallic plate prepares slab, and wherein the slab is in the longitudinal direction at least one length and in the horizontal at least one width
Or with profile, b) slab is molded, wherein producing the opening with the longitudinally extending channel in slab
Profile, c) side of the slab is molded, wherein producing the hollow profile with perimeter and with axial clearance and d) engaging
Axial clearance.
Background technology
Known different axis and wheel carrier in the field of chassis technology.Initially, axis is formd is pacified in a manner of it can rotate
Rigid lateral connection (" stiff shaft ") between the wheel of dress.The rigid connection of this two wheels was abandoned later.It takes
And instead of, wheel is mounted on wheel carrier, which is connect (" single by multiple guide rods in a manner of mobile with vehicle structure
Take turns suspension ").
So-called " semi-rigid axis " represents the compromise mode between stiff shaft and single-wheel suspension, known to be modified to
" torsion bar beam rear suspension ".Similar to stiff shaft, semi-rigid axis also forms the mechanical connection between the two wheels.Although such as
This, with stiff shaft on the contrary, semi-rigid axis allows the relative motion between the two wheels.This usually passes through the crossbeam of semi-rigid axis
Targetedly elastic torsional deflection and realize.The crossbeam is usually hollow profile.The torsional rigidity of crossbeam is usually along it
Length and change：High torsional rigidity is pursued on two ends of crossbeam, so as to fulfill being reliably connected for longeron, and in crossbeam
Middle section in pursue smaller torsional rigidity, so as to fulfill the relative motion between wheel.In this context it is apparent that
What the extremely complex geometry of crossbeam was commonly necessary.Therefore special requirement is proposed to the manufacture of this base part.
The possibility well known in the prior art for manufacturing this kind of torsion section bar for axis is, independent at one first
, it is mostly continuous during manufacture welding, be rolled down to a degree of pipe and the subsequent area by manufactured pipe therebetween
U-shaped is pressed by punch in section, so as to reduce the torsional rigidity in the section in a controlled manner.But this manufacture skill
Art has multiple shortcomings.One the disadvantage is that, material must have higher bending ability for the compacting of pipe.Meeting in this way
Causing cannot be using the material of many high intensity or superhigh intensity.Another shortcoming is limited design freedom, because by having
The pipe for having constant circumference can only be molded into the torsion section bar of almost circumference constant.
The alternative of known a kind of slab manufacture torsion section bar by metal in 10 2,009 031 981 A1 of DE, should
Torsion section bar should form the centre portion of torsion bar beam suspension, i.e., " crossbeam ".Thus in multiple steps by the metal slab of rectangle
Molding becomes hollow profile.Then, the longitudinal edge of slab is welded to each other, so as to form the hollow profile of closing.It is but this
The challenge of method is to generate reliable welding.Because by two longitudinal edges of multiple molding of slab in these forming steps
It usually slightly springs back later, so as to which the clean banjo fixing butt jointing for welding cannot be generated between longitudinal edge.Due to torsion
The cross section of section bar changes along its length, therefore two longitudinal edges are generally also sprung back along its length with different degree.
This may lead to the gap of modified gap width, this further makes welding become difficult.
Invention content
Therefore, it is an object of the present invention to design in this way and extend the method that beginning is described and has been described in detail before,
That is, the engagement of hollow profile is realized with high repeatable accuracy.
The purpose is realized by method as described in the preamble according to claim 1, that is, is molded slab in this way, is made
It obtains and generates compression at least in the region of axial clearance, particularly in metallic plate level.
The method according to the invention is used to manufacture the hollow profile of the closing of automobile shafts.The hollow profile is more particularly to torsion
Make the transition material, such as the crossbeam of torsion bar beam suspension.This method is set as, and prepares slab by metallic plate first, and wherein the slab is vertical
Upwards at least one length and in the horizontal at least one width or with profile.It is preferred that make the length
The significantly longer than width.Slab be particularly can be formed as rectangle and therefore in the longitudinal direction tool there are one length and in transverse direction
Upper tool is there are one width or is configured to molding slab and transverse to longitudinal direction with multiple length and longitudinally to laterally with more
A width.In addition, this method at least sets two forming steps：Slab should be molded in this way, had in order to generate first
The profile of the opening of the longitudinally extending channel of slab.Channel is interpreted as elongated recess or elongated recess.Then should
It is molded the side of slab in this way, in order to generate the hollow profile with perimeter and with axial clearance.Side beside channel
The region on side is known as side.Because hollow profile has axial clearance, therefore its (going back) is not the hollow profile of a closing.It should
Method is finally set as engagement axial clearance, and the hollow profile of closing is thus formed by open hollow profile.
It is set as according to the present invention, is molded slab in this way, in order at least in the region of axial clearance, particularly in gold
Belong in plate level and generate compression.After particularly in step b) and c) and before the step d) in axial clearance, particularly
Compression is generated in metallic plate level.Slab should be molded in this way, that is, be produced between two sides of the formation axial clearance of slab
Raw contact.The contact can generate on profile length on a position or multiple positions.It is preferred that it generates along axial clearance
Whole length continuous contact.There are two advantages for the compression tool generated in axial clearance.First, in product moulding mistake
The bending being outwardly oriented by the region of proximal edge is produced by compression in journey.The bending promotes longitudinal edge for example at edge
It is contacted to tangent-type in the case of docking, so as to form accurate dock and in axial clearance and the opposite area of hollow profile
Desired, accurate interval is adjusted out between domain (channel).Second, the compression of generation facilitate the minimum of screen resilience and
It prevents from cracking to excessive parts after taking out from shaping mould.These effects ensure it is reliable and repeat accurate molding with
And the substantially stressless engagement of axial clearance.Compression is for example realized by " material is excessive ".It is preferred that in axial clearance
Region in compression more than Materials Yield Limit.The compression is highest in edge docking.Axial clearance (longitudinal direction
Gap area) beside region also influenced by the compression generated, which, which can also assist in, avoids springing back,
In, the height court of compression reduces outwardly, away from axial clearance.
According to this method designing scheme, the width or profile of slab are more than at least one position
Perimeter in same position being generated in forming process, in hollow profile.It is using the slab with slightly increased width
It is a kind of it is particularly simple, obtain the hollow profile with compression in axial clearance and axial clearance region after formation
Possibility.
It is proposed in another designing scheme of this method, by steel, particularly by high intensity or superelevation in step a)
The steel of intensity either prepares slab by modern High Strength Multi-phase steel (such as DP780, FB780 or CP800).The feature of steel exists
In good mouldability and extraordinary intensity value.In addition, the use of steel realize manufacture have relatively thin wall thickness and because
This has the torsion section bar of lighter weight.Pursued in vehicle structure smaller " under spring " weight (axis, wheel etc.) relative to
The ratio of " on spring " weight (vehicle structure), it is relatively low so as to remain wheel load fluctuation.What is be formed from steel has smaller wall
Thick hollow profile can contribute thus.
Another designing scheme of this method is set as, slab have 0.5mm to 4.0mm between, particularly 1.0mm arrive
Thickness between 3.0mm.Slab with the thickness in given range is proved to be as enough firm
Good trade-off between property (thickness as big as possible) and light weight and good mouldability (thickness as small as possible).This is flat
Base can have either different thickness (so-called customization plank, customization band or the customization of the constant, thickness that remains unchanged
Milled sheet).
It could be provided as according to another designing scheme of this method, which has the fracture elongation less than 21%.
Different from by pipe manufacture hollow profile, can also be used by the manufacture of hollow profile carried out by the slab of plane has smaller
Fracture elongation material.This for example allows the steel using high intensity and superhigh intensity.
Be set as according to another designing scheme of this method, slab in step b) by deep-draw and/or stretching and/or
Punching press-raising and be molded.Deep-draw is a kind of molding modification of Compression and Expansion and realizes the manufacture of open hollow body.Deep-draw
The some parts of manufacture automobile can be therefore particularly suitable for using ice in mass production.Stretching belongs to stretch forming method
And it is characterized in that simple and inexpensive implementation.In forming process, it is preferable to use interval pressing device, so that it is guaranteed that the greatest extent
The extension of material that may be minimum.
It is proposed in another designing scheme of this method, slab is molded in this way, that is, generate banjo fixing butt jointing or connect
Head.Banjo fixing butt jointing and lap joint represent pretreatment advantageous for next welding.The welding of axial clearance can
Directly to be carried out after the conformation step in the case of not additional pre-treatment step.
Another designing scheme of this method is set as, and slab is molded in this way, that is, on two ends of open profile
Cross section to be generally U-shaped.It is preferred that form this shape after the step b) and before step c), that is, channel forming it
Afterwards and before side molding then is become hollow profile.Advantageous cross sections shape is mirror symmetry.This shape is for example
It is shown in the step V of Fig. 2 and Fig. 3.
It is proposed according to another designing scheme of this method, slab is molded in this way, that is, the horizontal stroke in the centre of open profile
Section is substantially w-shape.It is preferred that form this shape after the step b) and before step c), that is, after channel forming and
Before side molding then is become hollow profile.Advantageous cross sections shape is mirror symmetry.This shape is for example in Fig. 2
It is shown in the step V of Fig. 3.
Finally, it is proposed in another designing scheme of this method, passes through melting welding, soldering, bonding or machine in step d)
The joint method of tool engages longitudinal seam.Fusion welding method, method for welding and adhesive bonding method are the engagement side of material engagement
Method.Connection with high-strength heat-resistant can be realized by fusion welding method.Adhesive bonding method has the advantage that on the contrary,
That is, lower energy requirement and avoiding changes in microstructure middle around bonding station caused by heat.It alternatively can be with
Axial clearance is engaged by the joint method of machinery.
Description of the drawings
The attached drawing for being then act through illustrating only a preferred embodiment further illustrates the present invention.
Wherein：
Figure 1A shows the slab made of the metallic plate with rectangular shape,
Figure 1B is shown is molded slab made of metallic plate,
Fig. 1 C show the molding slab close to end profile shearing,
Fig. 2 is shown through the method according to the invention for being divided into seven steps with solid by the sky of slab manufacture closing
Cardioid material,
Fig. 3 shows in side view the method according to the invention by being divided into seven steps by the sky of slab manufacture closing
Cardioid material,
Fig. 4 A show the hollow profile by being closed made of the method for the present invention with front view,
Fig. 4 B show the hollow profile of the closing in Fig. 4 A to overlook,
Fig. 4 C have been shown ... in a side view the hollow profile of the closing in Fig. 4 A, and
Fig. 5 shows in a schematic form the flow of the method according to the invention.
Specific embodiment
Fig. 1 shows slab 1 made of metallic plate, which can be molded in the method according to the invention as sky
Cardioid material.The slab 1 first with rectangular shape (rectangle slab) and in the longitudinal direction with length L and in the horizontal with
Width B (Figure 1A).Rectangle slab carries out molding cutting after forming step b), the edge particularly extended in the longitudinal direction.It should
Slab 1 is optionally molding slab (Figure 1B), which has multiple length L and endways in transverse direction in the longitudinal direction sidewards
Above with multiple width B or with corresponding profile.The molding slab preferably passes through during forming step b)
Pressing device deep-draw spaced apart, wherein, it is just cut after splicing (end cut).Another slab 1 optionally exists
It is shown in Fig. 1 C, the slab is as the molding slab close to end profile cutting, with sidewards in the longitudinal direction with multiple length
Spend L and endways in the horizontal with multiple width B or with corresponding profile.
It is shown in Fig. 2 with solid and closing is manufactured by slab 1 by being divided into the method according to the invention of seven steps
Hollow profile 2.Fig. 3 shows in side view the method according to the invention by being divided into seven steps to manufacture envelope by slab 1
The hollow profile 2 closed.This seven steps are indicated in figure 2 and figure 3 by I-VII.
In step I, prepare the slab 1 of the plane made of metallic plate.Slab 1 is cut on the longitudinal edges and is corresponded to
The slab 1 shown in Figure 1B.In step II, slab 1 is molded in this way in the region of two ends 3, that is, is generated respectively recessed
Mouth 4.Slab 1 is made to be molded in this way by deep-draw and/or drawing and forming, that is, to produce to have and lead in the longitudinally extending of slab 1
The profile (step III) of the opening in road 5.In step iv, channel 5 deforms and this is had to the shape of bending in opposite direction
Shape.So that the side 6,7 of slab 1 extended on intermediate 5 side of channel is then towards the Direction distortion (step V) of channel 5.With
Afterwards, the side 6,7 of slab 1 is made further to deform, wherein generating the hollow profile 8 (step VI) with axial clearance 9.Closing
Hollow profile 2 is then generated by the welding of axial clearance 9 (edge welding), wherein producing two sides 6,7 of connection
Weld seam 10 (step VII).
Fig. 4 A show the hollow profile 2 by being closed made of the method for the present invention with front view.Fig. 4 B are with vertical view
It shows the hollow profile 2 of the closing in Fig. 4 A and Fig. 4 C has been shown ... in a side view the hollow profile 2 of the closing in Fig. 4 A.Example
In particular such as the manufacture that can be seen that hollow profile 2 on two nonplanar ends of hollow profile 2 in Fig. 4 A and Fig. 4 B
The slab 1 of the transverse edge with cutting is used.This kind of slab is for example shown in Figure 1C.
The last flow for showing in a schematic form the method according to the invention in Figure 5.This method includes the following steps：a)
Prepare slab 1, b) slab 1 molding (channel 5), c) slab 1 molding (side 6,7) and the d) engagement of axial clearance 9
(edge welding).
Reference numerals list
1 slab
The hollow profile of 2 closings
3 (slab 1) ends
4 recesses
5 channels
6,7 (slab 1) sides
8 hollow profiles
9 axial clearances
10 weld seams
L (slab 1) length
B (slab 1) width
U (hollow profile 8) perimeter
Claims (10)
1. it is a kind of for manufacturing the method for the hollow profile (2) of the closing of automobile shafts, include the following steps：
A) slab (1) is prepared by metallic plate, wherein the slab (1) has at least one length (L) and in the longitudinal direction in horizontal stroke
Upwards at least one width (B) or with profile,
B) slab (1) is molded, wherein producing the opening with the longitudinally extending channel (5) in the slab (1)
Profile,
C) side (6,7) of the slab (1) is molded, wherein producing with perimeter (U) and with the hollow of axial clearance (9)
Section bar (8) and
D) axial clearance (9) is engaged,
It is characterized in that,
The slab (1) is molded in this way, that is, at least generates compression in the region of the axial clearance (9).
2. according to the method described in claim 1, it is characterized in that, the profile of the width (B) or the slab exists
It is more than perimeter (U) generated in forming process, in the same position of hollow profile (8) at least one position.
3. method according to claim 1 or 2, which is characterized in that in step a) by steel, particularly by high intensity or
The steel of superhigh intensity is for slab (1).
4. method as claimed in any of claims 1 to 3, which is characterized in that the slab (1) has in 0.5mm
To the thickness between 4.0mm, particularly between 1.0mm to 3.0mm
5. method as claimed in any of claims 1 to 4, which is characterized in that the slab (1), which has, is less than 21%
Fracture elongation.
6. method as claimed in any of claims 1 to 5, which is characterized in that the slab (1) is led in step b)
It crosses deep-draw and/or drawing and forming and/or punching press-raising and is molded.
7. method as claimed in any of claims 1 to 6, which is characterized in that the slab (1) is molded in this way, that is,
Generate banjo fixing butt jointing or lap joint.
8. method as claimed in any of claims 1 to 7, which is characterized in that the slab (1) is molded in this way, that is,
Cross section on two ends of open profile is generally U-shaped.
9. method as claimed in any of claims 1 to 8, which is characterized in that the slab (1) is molded in this way, that is,
Cross section in the centre of the profile opened in side is substantially w-shape.
10. method as claimed in any of claims 1 to 9, which is characterized in that pass through melting welding, pricker in step d)
The joint method of weldering, bonding or machinery engages axial clearance (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234347.8A CN108247282A (en) | 2016-12-28 | 2016-12-28 | For manufacturing the method for the hollow profile of the closing of automobile shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234347.8A CN108247282A (en) | 2016-12-28 | 2016-12-28 | For manufacturing the method for the hollow profile of the closing of automobile shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108247282A true CN108247282A (en) | 2018-07-06 |
Family
ID=62719287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611234347.8A Pending CN108247282A (en) | 2016-12-28 | 2016-12-28 | For manufacturing the method for the hollow profile of the closing of automobile shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108247282A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07186654A (en) * | 1993-12-24 | 1995-07-25 | Yorozu:Kk | Torsion beam type suspension and manufacture thereof |
| EP1036678A2 (en) * | 1999-03-13 | 2000-09-20 | ThyssenKrupp Automotive AG | Twist-beam rear axle |
| US20010013242A1 (en) * | 2000-02-04 | 2001-08-16 | Takafumi Kondou | Method of manufacturing pipe body and pipe body manufactured by the method |
| DE10139661C1 (en) * | 2001-08-11 | 2003-02-13 | Linde & Pullman Ag Zuerich | Sheet metal profile carrier for automobile body component has each arm of profile cross-section provided with double layers bonded together by adhesive |
| US20030122344A1 (en) * | 2001-12-08 | 2003-07-03 | Benteler Automobil Technik & Gmbh & Co. Kg | Cross member, and method of making a cross member of a twist-beam axle for a motor vehicle |
| WO2007138074A1 (en) * | 2006-05-30 | 2007-12-06 | Thyssenkrupp Steel Ag | Method and device for producing structured and closed hollow profiles |
| JP2010194611A (en) * | 2009-02-24 | 2010-09-09 | Benteler Automobiltechnik Gmbh | Method for manufacturing vehicle constituent member in shape of torsional profile |
| US20110260423A1 (en) * | 2008-10-17 | 2011-10-27 | Arcelormittal Tubular Products Canada Inc. | Twist-axle with longitudinally-varying wall thickness |
| US20150165511A1 (en) * | 2012-05-28 | 2015-06-18 | Jfe Steel Corporation | Method and apparatus that forms a closed cross-sectional structure |
| CN107243535A (en) * | 2015-09-07 | 2017-10-13 | 本特勒尔汽车技术有限公司 | Method for the hollow profile of the closing that manufactures automobile shafts |
-
2016
- 2016-12-28 CN CN201611234347.8A patent/CN108247282A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07186654A (en) * | 1993-12-24 | 1995-07-25 | Yorozu:Kk | Torsion beam type suspension and manufacture thereof |
| EP1036678A2 (en) * | 1999-03-13 | 2000-09-20 | ThyssenKrupp Automotive AG | Twist-beam rear axle |
| US20010013242A1 (en) * | 2000-02-04 | 2001-08-16 | Takafumi Kondou | Method of manufacturing pipe body and pipe body manufactured by the method |
| DE10139661C1 (en) * | 2001-08-11 | 2003-02-13 | Linde & Pullman Ag Zuerich | Sheet metal profile carrier for automobile body component has each arm of profile cross-section provided with double layers bonded together by adhesive |
| US20030122344A1 (en) * | 2001-12-08 | 2003-07-03 | Benteler Automobil Technik & Gmbh & Co. Kg | Cross member, and method of making a cross member of a twist-beam axle for a motor vehicle |
| WO2007138074A1 (en) * | 2006-05-30 | 2007-12-06 | Thyssenkrupp Steel Ag | Method and device for producing structured and closed hollow profiles |
| US20110260423A1 (en) * | 2008-10-17 | 2011-10-27 | Arcelormittal Tubular Products Canada Inc. | Twist-axle with longitudinally-varying wall thickness |
| JP2010194611A (en) * | 2009-02-24 | 2010-09-09 | Benteler Automobiltechnik Gmbh | Method for manufacturing vehicle constituent member in shape of torsional profile |
| US20150165511A1 (en) * | 2012-05-28 | 2015-06-18 | Jfe Steel Corporation | Method and apparatus that forms a closed cross-sectional structure |
| CN107243535A (en) * | 2015-09-07 | 2017-10-13 | 本特勒尔汽车技术有限公司 | Method for the hollow profile of the closing that manufactures automobile shafts |
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Application publication date: 20180706 |
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