CN101648577A - Segmented hydraulic forming subframe - Google Patents
Segmented hydraulic forming subframe Download PDFInfo
- Publication number
- CN101648577A CN101648577A CN200910177218A CN200910177218A CN101648577A CN 101648577 A CN101648577 A CN 101648577A CN 200910177218 A CN200910177218 A CN 200910177218A CN 200910177218 A CN200910177218 A CN 200910177218A CN 101648577 A CN101648577 A CN 101648577A
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- CN
- China
- Prior art keywords
- subframe
- hydraulic forming
- front cross
- cross rail
- longeron
- 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
Links
- 238000003466 welding Methods 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000519996 Teucrium chamaedrys Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Body Structure For Vehicles (AREA)
Abstract
The invention relates to a segmented hydraulic forming subframe formed by welding five segments of hydraulic forming pipe fittings. The subframe comprises a left longitudinal beam (1), a left connecting pipe (2), a front crossbeam (3), a right connecting pipe (4) and a right longitudinal beam (5). The five segments of pipe fittings are all hydraulically formed, and both ends of each connecting pipe are respectively overlapped and soldered with each crossbeam and each longitudinal beam. Compared with an integral hydraulic forming subframe, the segmented hydraulic forming subframe has small forming equipment, convenient processing, good material flowability in forming, reduction rate decrease and cost saving due to only partial part and mould are changed in design change.
Description
Technical field
The present invention relates to automobile manufacturing field, relate to a kind of segmented hydraulic forming subframe specifically.
Background technology
Automobile accessory frame generally adopts steel plate drawing structure and welding, sees Fig. 5.The hydraulic forming subframe that external many car companys progressively adopt front cross rail and two side girders to be made of one is seen Fig. 6.Compare with drawing, hydraulic forming subframe is the highest can expendable weight more than 50%; The stock utilization height; Reduce welding sequence, need not weld subframe body up and down, improve efficiency of assembling.
There are some limitation in the integral type hydraulic forming subframe, blank as integral type hydraulic forming subframe bulging is longer, and the wall thickness pipe such as be, material is not easy to flow into from two ends and carries out supply, causes the excessively violent place of some features, subframe middle part material attenuate serious; Integral type hydraulic forming subframe Fabricating machinery is big, and tooling cost is higher; If vehicle body is installed the hard spot change, or subframe and chassis member interference, it is high that subframe is changed cost.
Summary of the invention
Technical matters to be solved by this invention is, overcome the above-mentioned defective that existing subframe exists, and provide a kind of segmented hydraulic forming subframe, segmented hydraulic forming subframe of the present invention has comprised the advantage of integral type hydraulic forming subframe, has overcome above-mentioned many deficiencies that the integral type hydraulic forming subframe exists simultaneously again.
The invention provides a kind of segmented hydraulic forming subframe, comprise the front cross rail of hydraulic forming, the left longeron of hydraulic forming and the right vertical beam of hydraulic forming, the left end of front cross rail and left longeron are fastenedly connected, and the right-hand member and the right vertical beam of front cross rail are fastenedly connected.
Front cross rail two ends caliber enlarges, to entangle left-right longeron; Or left-right longeron and the expansion of front cross rail coupling end caliber, to entangle front cross rail, be provided with out the plug welding groove in caliber expansion place.
Front cross rail also can be connected by left connection pipe with left longeron, and front cross rail also can be connected by right connection pipe with right vertical beam; Connection pipe two ends, left and right sides caliber enlarges, to entangle left-right longeron and crossbeam; Caliber expansion place of connection pipe two ends, the left and right sides is provided with out the plug welding groove.
This invention is divided into independently pipe fitting of three sections or five sections with the integral hydraulic forming tube.According to the chassis requirement of strength, segmentation hydraulic forming tube material and wall thickness can be the same or different, and specifically can determine by the CAE strength analysis.
In the pipe fitting junction, wherein a pipe fitting caliber enlarges, and can entangle another pipe fitting, and opens the plug welding groove caliber expansion place setting, and this structure can reduce plug welding place load, improves the stress concentration phenomenon, increases strength of joint, and pipe fitting connects by this kind mode.Need in the welding to locate by unit clamp.
The pipe fitting of sectional type is shorter, and be shaped required tonnage and equipment are all less, is fit to midget plant production.As required, every section pipe fitting can be made the different cross section shape, and thickness also can be different.After if subframe is produced, because design modification needs the local subframe structure that changes, only change is wherein one section, can not scrap a whole set of mould, improves improved alerting ability.
Description of drawings
Fig. 1 is axonometric drawings such as segmented hydraulic forming subframe;
Fig. 2 is the segmented hydraulic forming subframe explosive view;
Fig. 3 is the segmented hydraulic forming subframe birds-eye view;
Fig. 4 is segmented hydraulic forming subframe connection pipe and longeron lap-joint partial view;
Fig. 5 is punching press steel plate subframe assembly figure;
Fig. 6 is integral hydraulic shaping subframe assembly figure.
The specific embodiment
Concrete implementation step of the present invention is as follows:
As shown in Figures 1 to 4, arrange according to vehicle body and chassis, the design subframe, subframe is divided into five sections designs: front cross rail (3), left longeron (1), right vertical beam (5), left connection pipe (2) and right connection pipe (4).
By cae analysis, determine each section pipe fitting thickness and material, make subframe satisfy requirement of strength.
Design, processing hydraulic expanding die.
Be formed separately each section of subframe pipe fitting.
Left side connection pipe (2) and right connection pipe (4) two ends caliber enlarge; to entangle front cross rail (3), left longeron (1) and right vertical beam (5); and be provided with in caliber expansion place and open plug welding groove (6); the subframe pipe fitting is assembled; utilize unit clamp to fix, by carbon-dioxide arc welding with each section of subframe pipe fitting weld together.
The after cross member of subframe and drawing (7) welds by carbon-dioxide arc welding, and other connection support is freezed on the subframe tube wall, forms the subframe assembly.
Claims (7)
1, a kind of segmented hydraulic forming subframe, it is characterized in that, comprise the front cross rail (3) of hydraulic forming, the left longeron (1) of hydraulic forming and the right vertical beam (5) of hydraulic forming, the left end of described front cross rail (3) and described left longeron (1) are fastenedly connected, and the right-hand member of described front cross rail (3) and described right vertical beam (1) are fastenedly connected.
2, subframe as claimed in claim 1 is characterized in that: described front cross rail (3) two ends caliber enlarges, to entangle described left-right longeron.
3, subframe as claimed in claim 1 is characterized in that: described left-right longeron and described front cross rail (3) coupling end caliber enlarge, to entangle described front cross rail (3).
4, as claim 2 or 3 described subframes, it is characterized in that: expansion place of described caliber is provided with out plug welding groove (6).
5, subframe as claimed in claim 1 is characterized in that: described front cross rail (3) is connected by left connection pipe (2) with described left longeron (1), and described front cross rail (3) is connected by right connection pipe (4) with described right vertical beam (1).
6, subframe as claimed in claim 5 is characterized in that: connection pipe two ends, described left and right sides caliber enlarges, to entangle left-right longeron and crossbeam.
7, subframe as claimed in claim 6 is characterized in that: connection pipe two ends caliber expansion place of the described left and right sides is provided with out plug welding groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910177218A CN101648577A (en) | 2009-09-27 | 2009-09-27 | Segmented hydraulic forming subframe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910177218A CN101648577A (en) | 2009-09-27 | 2009-09-27 | Segmented hydraulic forming subframe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101648577A true CN101648577A (en) | 2010-02-17 |
Family
ID=41670939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910177218A Pending CN101648577A (en) | 2009-09-27 | 2009-09-27 | Segmented hydraulic forming subframe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101648577A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600773A (en) * | 2013-10-30 | 2014-02-26 | 奇瑞汽车股份有限公司 | Continuous variable cross-section car front longitudinal beam and preparation method thereof |
| CN104608831A (en) * | 2015-02-17 | 2015-05-13 | 黑龙江省尼奥普兰客车销售有限公司 | Passenger vehicle with weldless or weld stress eliminable safety structure |
| CN105312372A (en) * | 2014-08-05 | 2016-02-10 | 上海宝钢高新技术零部件有限公司 | Car auxiliary frame and forming method |
| CN106167049A (en) * | 2015-05-21 | 2016-11-30 | 福特全球技术公司 | Subframe for vehicle |
| CN109204472A (en) * | 2018-10-31 | 2019-01-15 | 安徽万安汽车零部件有限公司 | A kind of hydro-forming fore sub frame |
| CN112026921A (en) * | 2020-08-11 | 2020-12-04 | 东风越野车有限公司 | Interior high-pressure forming sectional type longeron and vehicle |
| CN113102947A (en) * | 2021-04-12 | 2021-07-13 | 安徽金路车辆制造有限公司 | Passenger car tubular beam piece and machining method thereof |
-
2009
- 2009-09-27 CN CN200910177218A patent/CN101648577A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600773A (en) * | 2013-10-30 | 2014-02-26 | 奇瑞汽车股份有限公司 | Continuous variable cross-section car front longitudinal beam and preparation method thereof |
| CN103600773B (en) * | 2013-10-30 | 2016-03-16 | 奇瑞汽车股份有限公司 | A kind of continuous variable cross section automobile front longitudinal beam and preparation method thereof |
| CN105312372A (en) * | 2014-08-05 | 2016-02-10 | 上海宝钢高新技术零部件有限公司 | Car auxiliary frame and forming method |
| CN104608831A (en) * | 2015-02-17 | 2015-05-13 | 黑龙江省尼奥普兰客车销售有限公司 | Passenger vehicle with weldless or weld stress eliminable safety structure |
| CN106167049A (en) * | 2015-05-21 | 2016-11-30 | 福特全球技术公司 | Subframe for vehicle |
| CN109204472A (en) * | 2018-10-31 | 2019-01-15 | 安徽万安汽车零部件有限公司 | A kind of hydro-forming fore sub frame |
| CN112026921A (en) * | 2020-08-11 | 2020-12-04 | 东风越野车有限公司 | Interior high-pressure forming sectional type longeron and vehicle |
| CN113102947A (en) * | 2021-04-12 | 2021-07-13 | 安徽金路车辆制造有限公司 | Passenger car tubular beam piece and machining method thereof |
| CN113102947B (en) * | 2021-04-12 | 2022-09-09 | 安徽金路车辆制造有限公司 | Passenger car tubular beam piece and machining method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100217 |