CN103640630A - Pipe-type auxiliary frame structure - Google Patents
Pipe-type auxiliary frame structure Download PDFInfo
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- CN103640630A CN103640630A CN201310732681.6A CN201310732681A CN103640630A CN 103640630 A CN103640630 A CN 103640630A CN 201310732681 A CN201310732681 A CN 201310732681A CN 103640630 A CN103640630 A CN 103640630A
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- subframe
- auxiliary frame
- pipe
- longeron
- longitudinal beam
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Abstract
The invention discloses a pipe-type auxiliary frame structure. A longitudinal beam and latitudinal beam connecting structure (5) of the pipe-type auxiliary frame structure is that a longitudinal beam end part turned-over edge (6) is arranged on each of an auxiliary frame left longitudinal beam (3) and an auxiliary frame right longitudinal beam (4); each longitudinal beam end part turned-over edge (6) forms a surface which is turned over outwards, and is jointed with and is in fixed connection with the pipe surface of an auxiliary frame front beam (1) and an auxiliary frame rear beam (2) respectively. According to the technical scheme, the connection structure of the longitudinal beam end part is changed, a space curved surface structure with turned-over edge is formed, the matching degree of the longitudinal beam end part and the latitudinal beam pipe is increased, the gap of the connecting part of the overall intersecting line and the pipe is controlled in the range of 0.2-0.5 mm; the welding gap is decreased, and is uniform, so that the welding deformation is greatly reduced, and the connecting strength of the pipe welding is reinforced; the pipe-type auxiliary frame structure can be formed in one step through a forming mold with excellent consistency and integrity, and the welding quality of the product is greatly improved.
Description
Technical field
The invention belongs to the technical field of automobile construction, relate to the connection structure of automobile chassis frame parts, more particularly, the present invention relates to a kind of tubular type auxiliary frame structure.
Background technology
Automobile tubular structure subframe generally consists of front and back crossbeam and left-right longeron, and by being welded to connect into the parts of frame shape, its crossbeam and longeron are circular pipe.Junction at front and back crossbeam and longeron, longeron and beam vertical intersect, at longeron, intersect junction and will be designed to intersection (face), require intersection (face) to be less than 1 millimeter with crossbeam pipe face phase cross gap, to guarantee longeron and beam welding place weld strength, concrete structure as depicted in figs. 1 and 2.
The shortcoming of prior art is:
Longeron and crossbeam junction are that two pipes intersect vertically, and it is intersection in theory that two pipes intersect vertically, and this intersection is space curve; The manufacture method of passing through mutually curve in this space be divided into twice die-cut, from two, vertical direction is respectively die-cut each other, forms convex curve and concave curve, as shown in Figure 2.
The shortcoming that above-mentioned prior art exists is: existing structure, in manufacturing process, is that curve (face) is passed through in the space that secondary punch forms mutually.Restriction due to the die-cut edge of a knife, the actual curve forming is to disconnect intersecting, necessarily there is joining in it, be difficult to accomplish with theoretic to pass through mutually curve consistent, do not have integraty, cause and when assembling mutually with crossbeam pipe, have larger gap, its actual gap is at 1～1.5 millimeter, and gap is inhomogeneous, cause be welded to connect unreliable.Due to secondary punch operation, can not there is good assembly performance with crossbeam pipe.
Summary of the invention
The invention provides a kind of tubular type auxiliary frame structure, its objective is the Joint strenght that strengthens crossbeam and longitudinal beam welding.
To achieve these goals, the technical scheme that the present invention takes is:
Tubular type auxiliary frame structure of the present invention, comprise subframe front cross rail, rear cross beam of subframe, the left longeron of subframe and subframe right vertical beam, the end of the left longeron of described subframe and subframe right vertical beam is fixedly connected with subframe front cross rail, rear cross beam of subframe by longeron beam connecting structure respectively; Described longeron beam connecting structure is: in the end of the left longeron of described subframe and subframe right vertical beam, be equipped with longeron end flange, described longeron end flange forms the surface of outwards opening, and merges and is fixedly connected with respectively with the body surface label of described subframe front cross rail and rear cross beam of subframe.
The described left longeron of subframe front cross rail, rear cross beam of subframe, subframe and the equal pipe shaped structure of subframe right vertical beam.
Gap between the end of the left longeron of described subframe and subframe right vertical beam and subframe front cross rail, rear cross beam of subframe is less than 0.5mm.
The flange width of described longeron end flange is 5～7mm.
The present invention adopts technique scheme, change the connection structure of longeron end, form the space curved surface structure of flange, increase and the crossbeam pipe degree that matches, by the clearance control of intersection integral body and pipe junction, in 0.2～0.5mm, because welded gaps diminishes, and gap is consistent, reduced greatly welding deformation, strengthened pipe and be welded to connect intensity; Can put in place with forming mould one-shot forming, its conformability, integraty are very good, have improved greatly Product jointing quality.
Accompanying drawing explanation
Below the expressed content of each width accompanying drawing of this specification sheets and the mark in figure are briefly described:
Fig. 1 is structural representation described in background technology;
Fig. 2 is longeron beam connecting structure schematic diagram in Fig. 1;
Fig. 3 is structural representation of the present invention;
Fig. 4 is longeron beam connecting structure schematic diagram in Fig. 3.
In figure, be labeled as:
1, subframe front cross rail, 2, rear cross beam of subframe, 3, the left longeron of subframe, 4, subframe right vertical beam, 5, longeron beam connecting structure, 6, longeron end flange.
The specific embodiment
Contrast accompanying drawing below, the description by embodiment, is described in further detail the specific embodiment of the present invention, to help those skilled in the art to have more complete, accurate and deep understanding to inventive concept of the present invention, technical scheme.
The invention belongs to the technical field of manufacturing technology and equipment.Structure of the present invention as shown in Figure 3, Figure 4, flange curved surface connection structure for a kind of tubular type subframe, comprise subframe front cross rail 1, rear cross beam of subframe 2, the left longeron 3 of subframe and subframe right vertical beam 4, the end of the left longeron 3 of described subframe and subframe right vertical beam 4 is fixedly connected with subframe front cross rail 1, rear cross beam of subframe 2 by longeron beam connecting structure 5 respectively.
In order to solve the problem of prior art existence and to overcome its defect, realize the goal of the invention of the Joint strenght that strengthens crossbeam and longitudinal beam welding, the technical scheme that the present invention takes is:
As shown in Figure 3, Figure 4, tubular type auxiliary frame structure of the present invention, described longeron beam connecting structure 5 is: the end at the left longeron 3 of described subframe and subframe right vertical beam 4 is equipped with longeron end flange 6, described longeron end flange 6 forms the surface of outwards opening, and is fixedly connected with respectively with described subframe front cross rail 1, the body surface label merging of rear cross beam of subframe 2.
Fracture curve (face) by passing through mutually with longeron, is designed to space flange curved surface, by theory, passes through mutually region, manufacture the one-shot forming of curved surface forming punch die, at formation space, longeron end flange curved surface, can make longeron and crossbeam joint closely sealed crossing, in bonding gap can be controlled at more among a small circle.
Gap between the end of the left longeron 3 of described subframe and subframe right vertical beam 4 and subframe front cross rail 1, rear cross beam of subframe 2 is less than 0.5mm.
The present invention changes longeron intersection (face) structure, this constructional feature is the end at pipe, forms the space curved surface of a flange, increases and the crossbeam pipe degree that matches, the clearance control of intersection integral body and pipe junction, in 0.5 millimeter, is strengthened to pipe and is welded to connect intensity.Because welded gaps diminishes, and gap is consistent, has reduced greatly welding deformation, has improved the conformability of product, has improved the weld strength of product.
Described subframe front cross rail 1, rear cross beam of subframe 2, the left longeron 3 of subframe and the equal pipe shaped structure of subframe right vertical beam 4.
The flange width of described longeron end flange 6 is 5～7mm.
The flange width of flange curved surface is at 5～7 millimeters; Because space flange curved surface can put in place with forming mould is one time punching molded, conformability, integraty are very good, can be controlled at 0.2～0.5 millimeter with crossbeam pipe assembly clearance, have improved greatly Product jointing quality.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (4)
1. a tubular type auxiliary frame structure, comprise subframe front cross rail (1), rear cross beam of subframe (2), the left longeron of subframe (3) and subframe right vertical beam (4), the end of the left longeron of described subframe (3) and subframe right vertical beam (4) is respectively by longeron beam connecting structure (5) and subframe front cross rail (1), rear cross beam of subframe (2) is fixedly connected with, it is characterized in that described longeron beam connecting structure (5) is: the end at the left longeron of described subframe (3) and subframe right vertical beam (4) is equipped with longeron end flange (6), described longeron end flange (6) forms the surface of outwards opening, merge and be fixedly connected with the body surface label of described subframe front cross rail (1) and rear cross beam of subframe (2) respectively.
2. according to tubular type auxiliary frame structure claimed in claim 1, it is characterized in that: described subframe front cross rail (1), rear cross beam of subframe (2), the left longeron of subframe (3) and subframe right vertical beam (4) be pipe shaped structure all.
3. according to tubular type auxiliary frame structure claimed in claim 1, it is characterized in that: the gap between the end of the left longeron of described subframe (3) and subframe right vertical beam (4) and subframe front cross rail (1), rear cross beam of subframe (2) is less than 0.5mm.
4. according to tubular type auxiliary frame structure claimed in claim 1, it is characterized in that: the flange width of described longeron end flange (6) is 5～7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310732681.6A CN103640630A (en) | 2013-12-26 | 2013-12-26 | Pipe-type auxiliary frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310732681.6A CN103640630A (en) | 2013-12-26 | 2013-12-26 | Pipe-type auxiliary frame structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103640630A true CN103640630A (en) | 2014-03-19 |
Family
ID=50245972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310732681.6A Pending CN103640630A (en) | 2013-12-26 | 2013-12-26 | Pipe-type auxiliary frame structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103640630A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527788A (en) * | 2015-01-22 | 2015-04-22 | 安徽机电职业技术学院 | Subframe structure |
| CN110843914A (en) * | 2019-10-29 | 2020-02-28 | 万向钱潮股份有限公司 | Auxiliary frame of automobile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201291905Y (en) * | 2008-08-29 | 2009-08-19 | 比亚迪股份有限公司 | Auxiliary frame of automobile |
| CN202529038U (en) * | 2012-03-29 | 2012-11-14 | 上海同捷科技股份有限公司 | Automotive rear sub-frame assembly |
| CN102897216A (en) * | 2012-10-22 | 2013-01-30 | 浙江吉利汽车研究院有限公司杭州分公司 | Tubular car auxiliary frame |
| CN202754031U (en) * | 2012-07-23 | 2013-02-27 | 上海汇众汽车制造有限公司 | Full-tube-frame front subframe welding assembly |
| CN202966434U (en) * | 2012-11-30 | 2013-06-05 | 广州汽车集团股份有限公司 | Automobile rear subframe and corresponding automobile |
| CN203713974U (en) * | 2013-12-26 | 2014-07-16 | 芜湖中瑞汽车零部件有限公司 | Tubular secondary frame structure |
-
2013
- 2013-12-26 CN CN201310732681.6A patent/CN103640630A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201291905Y (en) * | 2008-08-29 | 2009-08-19 | 比亚迪股份有限公司 | Auxiliary frame of automobile |
| CN202529038U (en) * | 2012-03-29 | 2012-11-14 | 上海同捷科技股份有限公司 | Automotive rear sub-frame assembly |
| CN202754031U (en) * | 2012-07-23 | 2013-02-27 | 上海汇众汽车制造有限公司 | Full-tube-frame front subframe welding assembly |
| CN102897216A (en) * | 2012-10-22 | 2013-01-30 | 浙江吉利汽车研究院有限公司杭州分公司 | Tubular car auxiliary frame |
| CN202966434U (en) * | 2012-11-30 | 2013-06-05 | 广州汽车集团股份有限公司 | Automobile rear subframe and corresponding automobile |
| CN203713974U (en) * | 2013-12-26 | 2014-07-16 | 芜湖中瑞汽车零部件有限公司 | Tubular secondary frame structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527788A (en) * | 2015-01-22 | 2015-04-22 | 安徽机电职业技术学院 | Subframe structure |
| CN110843914A (en) * | 2019-10-29 | 2020-02-28 | 万向钱潮股份有限公司 | Auxiliary frame of automobile |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20140319 |