CN101811517B - Internal high-pressure formed auxiliary frame and forming method thereof - Google Patents
Internal high-pressure formed auxiliary frame and forming method thereof Download PDFInfo
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- CN101811517B CN101811517B CN 201010148615 CN201010148615A CN101811517B CN 101811517 B CN101811517 B CN 101811517B CN 201010148615 CN201010148615 CN 201010148615 CN 201010148615 A CN201010148615 A CN 201010148615A CN 101811517 B CN101811517 B CN 101811517B
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Abstract
The invention relates to an internal high-pressure formed auxiliary frame and a forming method thereof. The auxiliary frame has a groined main structure and is formed by welding two longitudinal beams (5 and 19), a front cross beam (3) and a back cross beam. The longitudinal beams (5 and 19) have an internal high-pressure formed cast structure, wherein the cross section thereof is of an irregular shape with a small middle part and two big ends. The internal high-pressure forming method comprises the following steps of: (1) bending a pipeline; (2) flattening a workpiece; (3) hydroforming; (4) scraping edges and processing an auxiliary hole; and (5) washing and treating the surface. The internal high-pressure formed longitudinal beams and the front cross beam can be prevented from being formed by welding upper and lower two stamping parts, so that the materials are saved, the design space is obtained and a light, high-strength, high-precision, energy-saving auxiliary frame device is formed.
Description
Technical field
The present invention relates to a kind of automobile accessory frame and inside high-pressure forming method thereof.
Background technology
At present, traditional automobile accessory frame all adopts the welding of sheet metal parts of drawing to form, and based on this conventional confguration, causes existing following problem:
In the automobile design process, because the gap needs of power arrangement form (horizontal, vertical putting), suspension frame structure, power system and subframe, so that traditional subframe is furnished with difficulty, traditional subframe longitudinal beam adopt drawing up and down two be welded, sometimes in order to increase subframe intensity, between fluctuating plate, need to increase the assistant reinforcement support, this has just increased the mold developing of subframe, the cycle of designing and developing and manufacturing cost have been increased, also cause the huge waste of mould, be unfavorable for to a certain extent alleviating of complete vehicle weight.
In automobile manufacturing process, traditional subframe the increase of part must cause the increase of mould, positioning tool, welding jig owing to the needs of intensity cause, is unfavorable for batch manufacturing.
Therefore, need to improve existing subframe so that be set up at cloth, feasible on the structure, function, assembling, manufacturing, technique, greatly improve the speed of designing and developing, reduce cost, reduce complete vehicle weight, improve the car load economy.
Summary of the invention
Based on above background technology, the technical problem to be solved in the present invention provides a kind of internal-high-pressure-forming auxiliary frame, so that complete vehicle weight alleviates, material saving, product modular, raising subframe bulk strength, enhance product performance and precision, and can reduce half-finished parts quantity in process of production, reduce the rear processing such as welding, machine up and Product Assembly operation and process, effectively reduce production costs, alleviate complete vehicle weight, shorten the process-cycle.
To achieve these goals, auxiliary frame structure of the present invention has following formation:
A kind of internal-high-pressure-forming auxiliary frame, agent structure are " well " font, are formed by two longerons, a front cross rail, a rear cross beam welding, and longeron is the cylinder structure of internal high pressure forming, the large irregular shape in little two in the middle of its cutting plane is.Front cross rail is the cylinder structure of internal high pressure forming, and its cutting plane is constant regular shape.About two longerons and front cross rail, after cross member fluctuating plate be welded together to form first integral frame, then brace panel, oscillating arm bracket, mounting bracket, stabilizer bar arm are passed through separately knock hole, be welded on the subframe, at last, four lining Socket weldings are connected on the subframe, thereby reach size and the Geometrical Tolerance Principle of product.
Subframe longitudinal beam and/or front cross rail adopt the pipe fitting hydroforming technology, be applicable to the structure pipe fitting of the difform hollow of equal thickness, method is first tubing to be carried out first road bending operation, then carrying out operation 2 claps flat, carry out again the 3rd procedure hydraulic forming, be about to be placed in the shaping dies through the tubing that operation 2 is processed, be pressed into high-pressure fluid by inside pipe fitting, and in the axial direction of the tubing compensation materials in the tube of exerting pressure, materials in the tube are pressed into the cavity body of mould internal shaping, follow and namely cut edge by operation 4, the processing of auxiliary hole, method are that longeron is carried out the end, the laser beam cutting of knock hole, last procedure is to clean, surface treatment etc.
Compare with the subframe that traditional fluctuating plate sheet metal component drawing is welded again, subframe of the present invention is spatially compacter.Longeron, front cross rail adopt inside high-pressure forming method, are different from traditional casting subframe and sheet metal component fluctuating plate punch welding technology, can reach to reduce framing member number of parts, welding sequence and shorten assembly process, reach the target of expendable weight and reduction cost.
According to a kind of preferred design of the present invention, the cross-sectional plane of subframe longitudinal beam at least part is circular or oval, and longeron also can at least part ofly be designed to triangle or oblong.
Can arrange according to the chassis in the design process (driving engine, transmission shaft, stabilizer rod etc.) and with longeron near the needs of quiet movement clearance of associated part, the longeron cross-sectional plane is changed, principle is: supposition longeron blank section girth is L, after design, the longeron section girth is L1, so the value of (L1-L)/L*100% gained should be less than or equal to 35%.
In the design process, consider the needs of shaping, welding, assembling, all be designed with two knock holees at the position, front and back of each longeron.
The intensity Q of inner high voltage longeron becomes the first power proportional relation with its pipe fitting thickness h, and S becomes the quadratic power proportional relation with the pipe fitting cross-sectional area, so in the design process of the intensity Q of optimizing longeron, following three kinds of schemes can be arranged:
1, changes the material of longeron;
2, change the thickness h of longeron;
3, change the cross-sectional area S of longeron.
Subframe beneficial effect of the present invention is specific as follows:
1, subframe of the present invention has alleviated weight with traditional subframe: compare with punch welding spare, internal high pressure forming longeron, front cross beam structure spare can reduce 20%～30%;
2, subframe of the present invention is compared with traditional subframe, internal high pressure forming spare only needs a mold usually, and punch welding spare is welded by a plurality of blanked parts, therefore need the diel of many covers, so neoteric subframe shortens the design cycle greatly, saved the mould development cost, saved investment of production, reduce the cost of product, improved the competitive power of product, increased the profit of Automobile Enterprises;
3, subframe of the present invention is compared with traditional subframe, reduces half-finished parts quantity: but time processing goes out longeron, front cross rail in forming process.Compare with punch welding spare, subframe longitudinal beam, front cross rail part reduce to 2 by 4, have made things convenient for the modularization of chassis member;
4, subframe of the present invention is compared with traditional subframe, has improved intensity, rigidity and strength at repeated alternation: liquid tool cooling effect in the forming process, and make workpiece by " cold work reinforced ", obtain the workpiece strength higher than general punch process;
Description of drawings:
The below describes the present invention in detail by embodiment shown in the drawings, is illustrated as:
Fig. 1 is the plan structure scheme drawing of internal-high-pressure-forming auxiliary frame of the present invention,
Fig. 2 is the block diagram of the longeron of subframe shown in Figure 1,
Fig. 3 is the birds-eye view of the longeron of subframe shown in Figure 2,
Fig. 4 be the longeron of subframe shown in Figure 2 along the section drawing of A-A line,
Fig. 5 be the longeron of subframe shown in Figure 2 along the section drawing of B-B line,
Fig. 6 be the longeron of subframe shown in Figure 2 along the section drawing of C-C line,
Fig. 7 be the longeron of subframe shown in Figure 2 along the section drawing of D-D line,
Fig. 8 be the longeron of subframe shown in Figure 2 along the section drawing of E-E line,
Fig. 9 is that the longeron of subframe shown in Figure 2 is along the section drawing of F F line;
Reference numeral:
1, lining sleeve pipe, 2, reinforced support, 3, front cross rail, 4, reinforced support, 5, longeron, 6, oscillating arm bracket, 7, oscillating arm bracket, 8, stabilizer bar arm, 9, rear suspension bracket, 10, after cross member upper slice, 11, oscillating arm bracket, 12, reinforced support, 13, sheet under the after cross member, 14, reinforced support, 15, oscillating arm bracket, 16, stabilizer bar arm, 17, oscillating arm bracket, 18, oscillating arm bracket, 19, longeron.
The specific embodiment
In order more clearly to understand technology contents of the present invention, describe in detail especially exemplified by following examples.
See also Fig. 1～shown in Figure 9, sub-frame connecting structure of the present invention is by two longerons (5,19), a front cross rail (3), after cross member fluctuating plate (10,13), six oscillating arm brackets (6,7,11,15,17,18), four brace panels (2,4,12,14), four lining sleeve pipes (1), two stabilizer bar arms (8,16) and a rear suspension support for engine (9) be welded, this subframe general frame structure has the intensity height, the characteristics such as good rigidly, subframe longitudinal beam (5,19), front cross rail (3) is internal high pressure forming, and Fig. 4 to Fig. 9 has shown each shape of cross section feature of longeron.
Subframe longitudinal beam, front cross rail adopts the pipe fitting hydroforming technology, be applicable to the structure pipe fitting of the difform hollow of equal thickness, method is first tubing to be carried out first road bending operation, then carrying out operation 2 claps flat, carry out again the 3rd procedure hydraulic forming, be about to be placed in the shaping dies through the tubing that operation 2 is processed, be pressed into high-pressure fluid by inside pipe fitting, and in the axial direction of the tubing compensation materials in the tube of exerting pressure, materials in the tube are pressed into the cavity body of mould internal shaping, follow and namely cut edge by operation 4, the processing of auxiliary hole, method are to longeron, front cross rail carries out the end, the laser beam cutting of knock hole, last procedure is to clean, surface treatment etc.
The design of longeron (5,19) mainly is to consider and the gap requirement of driving engine, transmission shaft etc. that the axial trend of longeron is mild (z direction drop is little) relatively, is convenient to the inner high voltage process forming, has reduced half-blank quantity.Longeron (5,19) constant thickness, be conducive to equally internal high pressure forming technique, the subsides mould that is conducive to material, and the axially supply of material, can adjust easily the collocation relation of pressing in the longeron with longitudinal travel, reduced forming defects, improve development-success ratio, thereby shortened time-to-market.
The shape of cross section of longeron by Fig. 4 to Fig. 9, the cross sectional shape that can find out longeron is oblong, carry out the limit chamfering, some cross section is irregularly shaped (Fig. 6, Fig. 7), because design gaps needs, mentioned above principle is all satisfied in the design in each cross section, and (supposition longeron blank section girth is L, after design, the longeron section girth is L1, so the value of (L1-L)/L*100% gained should be less than or equal to 35% for good).
The rear cross beam of subframe fluctuating plate is welded into first one whole, is welded into framed structure by frock clamp location and longeron (5,19), front cross rail (3); And then four oscillating arm brackets (6,7,11,15,17,18) of having good positioning with frock clamp, rear suspension support for engine welding; And then weld with four brace panels (2,4,12,14), two stabilizer bar arms (8,16) that frock clamp is had good positioning; Four lining sleeve pipes (1) last and that frock clamp is had good positioning weld, to guarantee the size shape positional tolerance requirement between each lining sleeve pipe.
To sum up, the design of the subframe internal high pressure forming longeron that the present invention uses, front cross beam structure is unique, simple in structure, technological feasibility is good, it is easy to assemble, so that complete vehicle weight alleviates, material saving, product modular, raising subframe bulk strength, enhance product performance and precision, and can reduce half-finished parts quantity in process of production, reduce the rear processing such as welding, machine up and Product Assembly operation and process, effectively reduce production costs, alleviate the advantages such as complete vehicle weight, shortening process-cycle.
In this specification sheets, the present invention is described with reference to its specific embodiment.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the invention.Therefore, specification sheets and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (1)
1. internal-high-pressure-forming auxiliary frame, agent structure is " well " font, by two longerons (5,19), a front cross rail (3), a rear cross beam welding forms, it is characterized in that, described longeron (5,19) be the cylinder structure of internal high pressure forming, the large irregular shape in little two in the middle of its cutting plane is, described longeron (5,19) cross-sectional plane at least part is circular, oval, triangle or oblong, described longeron (5,19) has constant wall thickness, described longeron (5,19) respectively be welded with 3 oscillating arm brackets, described longeron (5,19) two ends separately respectively are welded with 1 lining sleeve pipe, described longeron (5,19) respectively be welded with 1 stabilizer bar arm with the rear cross beam welding place, be welded with rear suspension support for engine (9) on the described after cross member, described two longerons (5,19), a front cross rail (3), the welding part of an after cross member is provided with brace panel, described front cross rail (3) is the cylinder structure of internal high pressure forming, and its cutting plane is constant regular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010148615 CN101811517B (en) | 2010-04-16 | 2010-04-16 | Internal high-pressure formed auxiliary frame and forming method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010148615 CN101811517B (en) | 2010-04-16 | 2010-04-16 | Internal high-pressure formed auxiliary frame and forming method thereof |
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| CN101811517A CN101811517A (en) | 2010-08-25 |
| CN101811517B true CN101811517B (en) | 2013-03-27 |
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| CN 201010148615 Expired - Fee Related CN101811517B (en) | 2010-04-16 | 2010-04-16 | Internal high-pressure formed auxiliary frame and forming method thereof |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069302A (en) * | 2010-12-09 | 2011-05-25 | 金华福多纳机械有限公司 | Post-processing method for auto trailing-arm component with variable cross-section |
| CN102267490B (en) * | 2011-05-04 | 2013-04-10 | 北京航空航天大学 | Internal-high-pressure-forming-based automobile longitudinal beam and manufacturing method thereof |
| CN103511825B (en) * | 2012-06-15 | 2016-03-16 | 上海汇众汽车制造有限公司 | Vehicle frame bushing sleeves and forming method thereof |
| CN103586332B (en) * | 2012-08-14 | 2015-09-02 | 上海金涌模具有限公司 | The process for stamping and forming of car Rear secondary frame for vehicle main body |
| CN103847793B (en) * | 2012-11-30 | 2016-06-08 | 广州汽车集团股份有限公司 | A kind of automobile rear sub-frame and corresponding automobile |
| CN103287496B (en) * | 2013-06-27 | 2016-05-11 | 长城汽车股份有限公司 | For the subframe of vehicle and there is its vehicle |
| 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 |
| CN104354767A (en) * | 2014-11-05 | 2015-02-18 | 柳州金茂机械有限公司 | Auxiliary frame |
| CN106218721A (en) * | 2016-07-27 | 2016-12-14 | 芜湖禾田汽车工业有限公司 | Full aluminum subframe production method |
| JP6772230B2 (en) * | 2018-09-27 | 2020-10-21 | 本田技研工業株式会社 | Body front structure |
| KR20220141781A (en) * | 2020-03-10 | 2022-10-20 | 스미도모쥬기가이고교 가부시키가이샤 | Molding system and molding method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1572387A (en) * | 2003-06-20 | 2005-02-02 | 达纳公司 | Method of manufacturing a vehicle frame component by high velocity hydroforming |
| CN201040541Y (en) * | 2007-06-08 | 2008-03-26 | 宁波跃进汽车前桥有限公司 | Front auxiliary car frame assembly |
| CN201189884Y (en) * | 2008-03-24 | 2009-02-04 | 重庆长安汽车股份有限公司 | Vehicle auxiliary frame structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008195206A (en) * | 2007-02-13 | 2008-08-28 | Honda Motor Co Ltd | Vehicle body front part structure of vehicle |
| DE102008010551A1 (en) * | 2008-02-22 | 2009-08-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Subframe for a rear axle of a motor vehicle |
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2010
- 2010-04-16 CN CN 201010148615 patent/CN101811517B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1572387A (en) * | 2003-06-20 | 2005-02-02 | 达纳公司 | Method of manufacturing a vehicle frame component by high velocity hydroforming |
| CN201040541Y (en) * | 2007-06-08 | 2008-03-26 | 宁波跃进汽车前桥有限公司 | Front auxiliary car frame assembly |
| CN201189884Y (en) * | 2008-03-24 | 2009-02-04 | 重庆长安汽车股份有限公司 | Vehicle auxiliary frame structure |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2008-195206A 2008.08.28 |
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| CN101811517A (en) | 2010-08-25 |
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