CN111845942A - Steel plate tailor-welded automobile crossbeam - Google Patents
Steel plate tailor-welded automobile crossbeam Download PDFInfo
- Publication number
- CN111845942A CN111845942A CN202010526811.0A CN202010526811A CN111845942A CN 111845942 A CN111845942 A CN 111845942A CN 202010526811 A CN202010526811 A CN 202010526811A CN 111845942 A CN111845942 A CN 111845942A
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- reinforcing
- cross beam
- welded
- side cross
- parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
Abstract
The automobile cross beam formed by splicing and welding the steel plates comprises an inner cross beam, an outer cross beam and a reinforcing beam, wherein the three parts are formed by the steel plates or the steel belts and then are integrated into a whole through splicing and welding, the inner cross beam and the outer cross beam form a closed cavity, the reinforcing beam is welded in the closed cavity, the reinforcing beam extends in the length direction of the automobile cross beam in the closed cavity, the reinforcing beam divides the closed cavity into two parts, the two sides of the reinforcing beam are bent in the same direction, the bent parts are respectively matched and attached with the inner cross beam and the outer cross beam, the end parts of the bent parts are respectively welded with the inner cross beam and the outer cross beam, and at least one reinforcing groove or reinforcing bend extending in the length direction of the inner cross beam is arranged on the inner cross beam. The invention can flexibly select materials, determine the thickness and the forming process according to the requirements of the vehicle type, and has wide applicability; the setting of stiffening beam has improved crashproof crossbeam's bulk strength and bending resistance greatly, compares with traditional crashproof crossbeam, and under the equal weight condition, the high bending resistance of intensity is superior.
Description
Technical Field
The invention relates to an automobile safety part, in particular to an automobile beam formed by tailor-welding steel plates.
Background
In order to improve the energy saving performance and environmental protection performance of the traditional fuel vehicle, reduce the fuel consumption and reduce the emission, the design of the light weight of the vehicle is more and more emphasized. It is safety that the automobile cannot be ignored while paying attention to the weight reduction of the automobile, and safety for protecting passengers to the maximum extent when the automobile collides is a key subject of research and development by the industry. When the automobile collides, the excellent beam structure can effectively absorb impact energy, reduce the damage of a passenger cabin and an automobile body structure, and reduce the injury degree of passengers and the maintenance cost of the automobile. The cross beam is an important safety part of the automobile, and the bending resistance of the cross beam is an important measure of the safety performance of the automobile when collision occurs. On the premise of meeting the collision safety performance of the beam, the weight of the beam is reduced through structural improvement, and the development cost is reduced, so that the problem that an automobile product engineer needs to solve urgently is solved.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a steel plate tailor-welded automobile beam which effectively improves the strength and the bending resistance under the condition of the same weight through structural improvement.
The problem of the invention is realized by the following technical scheme:
An automobile cross beam formed by splicing and welding steel plates comprises an inner cross beam, an outer cross beam and a reinforcing beam, wherein the three parts are formed by steel plates or steel strips and then are integrated into a whole through splicing and welding, the inner cross beam and the outer cross beam form a closed cavity, the reinforcing beam is welded in the closed cavity, the reinforcing beam extends in the length direction of the automobile cross beam in the closed cavity, the reinforcing beam divides the closed cavity into two parts, two sides of the reinforcing beam are bent in the same direction, the bent parts are respectively matched and attached with the inner cross beam and the outer cross beam, the end parts of the bent parts are respectively welded with the inner cross beam and the outer cross beam, and at least one reinforcing groove or reinforcing bend extending in the length direction of the inner cross beam is arranged on the inner cross beam; and oblong plug welding holes are distributed on the inner side cross beam.
According to the automobile crossbeam welded by the steel plates, the inner side crossbeam is of a semi-closed structure with three closed sides and one open side, the opening part of the inner side crossbeam is welded with the outer side crossbeam, and the upper wall and the lower wall of the inner side crossbeam are respectively provided with the reinforced bending parts for increasing the height size of the inner side crossbeam.
According to the automobile crossbeam welded by the steel plates, the rear wall of the inner side crossbeam is provided with two reinforcing grooves which are distributed up and down relative to the reinforcing beam, and the upper wall and the lower part of the inner side crossbeam are symmetrically provided with the reinforcing grooves.
According to the steel plate tailor-welded automobile crossbeam, the closed cavity is divided into two parts with different upper and lower areas by the reinforcing beam, the upper wall and the lower wall of the inner side crossbeam are respectively provided with the reinforcing grooves, and the rear wall of the inner side crossbeam corresponding to the larger area part of the closed cavity is provided with the reinforcing grooves.
According to the automobile beam formed by splicing and welding the steel plates, the two reinforcing beams are adopted, the two sides of each reinforcing beam are bent in different lengths, the back parts of the two reinforcing beams are welded in an attaching mode to form an I shape, the longer bending parts of the two reinforcing beams are welded in an attaching mode with the inner side beam, and the shorter bending parts of the two reinforcing beams are welded in an attaching mode with the outer side beam.
The middle part of the outer side cross beam is inwards concave, and the upper end and the lower end of the outer side cross beam are in lap joint welding with the inner side cross beam.
In the steel plate tailor-welded automobile beam, the inner side beam and the outer side beam are fully welded or sectionally welded, and the stiffening beam and the outer side beam are fully welded or sectionally welded; and the reinforcing beam and the inner side cross beam are subjected to plug welding.
The anti-collision beam is formed by welding and combining an inner side beam, an outer side beam and a reinforcing beam into a whole after a forming process, each part can achieve the purpose of improving the performance through flexible optimization design, different parts can flexibly select materials according to the requirements of vehicle types, determine the thickness and the forming process, and have wide applicability; the arrangement of the reinforcing beam greatly improves the overall strength and the bending resistance of the anti-collision beam, and compared with the traditional anti-collision beam, the anti-collision beam has superior strength and bending resistance under the condition of the same weight; under the condition of equivalent bending resistance, the anti-collision cross beam can reduce the using amount of materials, and the weight reduction effect is obvious.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic structural view of a first embodiment of the present invention;
FIG. 2 is a schematic sectional view of a second embodiment of the present invention;
FIG. 3 is a schematic sectional view of a third embodiment of the present invention;
FIG. 4 is a schematic sectional view of a fourth embodiment of the present invention;
FIG. 5 is a schematic sectional view of a fifth embodiment of the present invention;
fig. 6 is a schematic structural view of the inside cross member.
The list of labels in the figure is: 1. the inner side cross beam comprises 1-1 part of an inner side cross beam, 1-2 parts of an upper wall, 1-3 parts of a rear wall, 1-4 parts of a lower wall, 2 parts of an outer side cross beam, 3 parts of a reinforcing beam, 4 parts of a reinforcing groove, 5 parts of a reinforcing bend.
Detailed Description
Referring to fig. 1, the present invention comprises an inner cross member 1, an outer cross member 2 and a reinforcement beam 3 (the outer cross member faces the front part of the vehicle body and the inner cross member faces the rear part of the vehicle body, depending on the direction of use), wherein the three parts are made of steel plates or steel strips of the same material or different materials as the base material, and are formed and processed first, and then the three parts are formed into a whole by tailor welding. The inner side cross beam is of a semi-closed structure with three closed surfaces and one open surface, wherein the semi-closed structure is formed by an upper wall 1-1, a rear wall 1-2 and a lower wall 1-3, the middle part of the outer side cross beam is inwards concave, the upper end and the lower end of the outer side cross beam are in lap joint with the inner side cross beam, and the upper end and the lower end of the outer side cross beam and the inner side cross. The stiffening beam is welded in the closed cavity, extends in the length direction of the automobile beam in the closed cavity, and divides the closed cavity into two parts. The two sides of the reinforcing beam are bent in the same direction, the two bent parts are equal in length or different in length, the bent parts of the reinforcing beam are matched and attached with the inner side cross beam and the outer side cross beam respectively, and the end parts of the bent parts are welded with the inner side cross beam and the outer side cross beam respectively. In order to improve the performance of the cross beam, at least one reinforcing groove or reinforcing bend extending along the length direction of the inner cross beam is arranged on the inner cross beam. In the first embodiment shown in fig. 1, two reinforcing grooves 4 are formed in the rear wall of the inner cross member, and one reinforcing groove 4 is formed in each of the upper wall and the lower wall of the inner cross member. The strength and the bending resistance of the beam can be improved on the basis of not increasing materials by the arrangement of the reinforcing grooves.
Referring to fig. 2, the structure of the second embodiment shown differs from that of the first embodiment in that the reinforcing grooves are provided only on the rear wall, and this relatively simple structure is suitable for a small displacement vehicle.
Referring to fig. 3, a third embodiment is shown in which reinforcing folds 5 are provided on the upper wall and the lower wall of the inner side cross member, respectively, and the height dimension of the inner side cross member is increased by the reinforcing folds. The structure is characterized in that the inner side cross beam and the outer side cross beam form a closed cavity with a section similar to a trapezoid, so that the overall stress state of the cross beam is more reasonable on the basis of improving the performance of the inner side cross beam.
Referring to fig. 4, in the fourth embodiment, the reinforcing beam divides the closed cavity formed by the outer beam of the inner beam into two parts with different upper and lower areas, the upper wall and the lower wall of the inner beam are respectively provided with a reinforcing groove 4, and the rear wall of the inner beam corresponding to the larger area of the closed cavity is provided with the reinforcing groove 4. The structure uses the reinforcing groove and the bending part with the longer size at one side of the reinforcing beam to play a role, improves the performance of the rear wall of the inner side cross beam, and is suitable for small automobiles with compact structures.
Referring to fig. 5, the fifth embodiment is shown in which two reinforcing beams are adopted, two sides of each reinforcing beam are bent at different lengths, the backs of the two reinforcing beams are welded to form an i shape, the longer bent parts of the two reinforcing beams are welded to the inner side cross beam, and the shorter bent parts of the two reinforcing beams are welded to the outer side cross beam. The upper wall and the lower wall of the inner side cross beam are respectively provided with a reinforced bend 5. The structure gives full play to the reinforcing function of the reinforcing beams, improves the strength and the bending resistance of the inner side beam by the longer bending parts of the two reinforcing beams, can obviously improve the strength and the bending resistance of the beam by matching the arrangement of reinforcing and bending the upper wall and the lower wall of the inner side beam, and is suitable for vehicle types with larger discharge capacity.
Referring to fig. 6, oblong plug welding holes 1-4 are distributed on the inner side cross beam. When the anti-collision beam is manufactured, the inner side beam and the outer side beam are welded in a full welding mode or in a segmented welding mode, and the stiffening beam and the outer side beam are welded in a full welding mode or in a segmented welding mode. And after the inner side cross beam and the outer side cross beam are welded and closed, the stiffening beam is subjected to plug welding with the inner side cross beam through the plug welding hole. If the inner side cross beam and the outer side cross beam are welded in sections or the reinforcing beam and the outer side cross beam are welded in sections, the positions of the plug welding of the reinforcing beam and the inner side cross beam and the positions of the section welding need to be distributed in a staggered mode.
The invention adopts a structure of selecting materials in parts, forming in parts and then welding, can flexibly design the structure of each part, and achieves the purpose of being most adaptive to the vehicle type through the structural improvement of different parts. It should be noted that, on the basis of the above-mentioned embodiments, structural modifications for different components also belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a steel sheet tailor-welded automobile crossbeam which characterized in that: the automobile bumper beam is characterized by comprising an inner side beam (1), an outer side beam (2) and a reinforcing beam (3), wherein the three parts are all formed by steel plates or steel strips and then are welded into a whole, the inner side beam and the outer side beam form a closed cavity, the reinforcing beam is welded in the closed cavity, the reinforcing beam extends in the length direction of the automobile beam in the closed cavity, the reinforcing beam divides the closed cavity into two parts, two sides of the reinforcing beam are bent in the same direction, the bent parts are respectively matched and attached with the inner side beam and the outer side beam, the end parts of the bent parts are respectively welded with the inner side beam and the outer side beam, and at least one reinforcing groove (4) or reinforcing bend (5) extending in the length direction of the inner side beam is arranged on the inner side beam; and oblong plug welding holes (1-4) are distributed on the inner side cross beam.
2. The tailor welded automotive cross-member of claim 1, wherein: the inner side cross beam is of a semi-closed structure with three closed surfaces and one open surface, the upper wall (1-1), the rear wall (1-2) and the lower wall (1-3) form the semi-closed structure, the opening part of the inner side cross beam is welded with the outer side cross beam, and the upper wall and the lower wall of the inner side cross beam are respectively provided with a reinforced bending part (5) for increasing the height size of the inner side cross beam.
3. The tailor welded automotive cross-member of claim 1, wherein: two reinforcing grooves (4) are formed in the rear wall of the inner side cross beam, the two reinforcing grooves are distributed up and down relative to the reinforcing beam, and the reinforcing grooves (4) are symmetrically formed in the upper wall and the lower portion of the inner side cross beam.
4. The tailor welded automotive cross-member of claim 1, wherein: the closed cavity is divided into two parts with different upper and lower areas by the reinforcing beam, the upper wall and the lower wall of the inner side cross beam are respectively provided with a reinforcing groove (4), and the rear wall of the inner side cross beam corresponding to the larger area part of the closed cavity is provided with the reinforcing groove (4).
5. The tailor welded automotive cross-member of claim 1, wherein: two reinforcing beams are adopted, the two sides of each reinforcing beam are bent in unequal lengths, the back parts of the two reinforcing beams are welded in an attaching mode to form an I shape, the longer bending parts of the two reinforcing beams are welded with the inner side cross beam in an attaching mode, and the shorter bending parts of the two reinforcing beams are welded with the outer side cross beam in an attaching mode.
6. The tailor welded automotive cross-member according to claim 1, 2, 3, 4 or 5, wherein: the middle part of the outer side cross beam is inwards concave, and the upper end and the lower end of the outer side cross beam are welded with the inner side cross beam in an overlapping mode.
7. The tailor welded automotive cross-member of claim 6, wherein: the inner side cross beam and the outer side cross beam are fully welded or welded in sections, and the stiffening beam and the outer side cross beam are fully welded or welded in sections; and the reinforcing beam and the inner side cross beam are subjected to plug welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010526811.0A CN111845942A (en) | 2020-06-11 | 2020-06-11 | Steel plate tailor-welded automobile crossbeam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010526811.0A CN111845942A (en) | 2020-06-11 | 2020-06-11 | Steel plate tailor-welded automobile crossbeam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111845942A true CN111845942A (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010526811.0A Pending CN111845942A (en) | 2020-06-11 | 2020-06-11 | Steel plate tailor-welded automobile crossbeam |
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| Country | Link |
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| CN (1) | CN111845942A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112498485A (en) * | 2020-12-11 | 2021-03-16 | 湖北航天技术研究院特种车辆技术中心 | Novel reinforcing cross beam and automobile frame |
| WO2022109798A1 (en) * | 2020-11-24 | 2022-06-02 | 武汉路特斯汽车有限公司 | Rear anti-collision beam |
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| JP2001239903A (en) * | 2000-02-29 | 2001-09-04 | Katayama Kogyo Co Ltd | Vehicular bumper |
| US20050285416A1 (en) * | 2004-06-25 | 2005-12-29 | Heatherington David W | Vehicle bumper beam |
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| CN202201045U (en) * | 2011-07-29 | 2012-04-25 | 重庆长安汽车股份有限公司 | Front collision transverse beam |
| CN204037659U (en) * | 2014-08-12 | 2014-12-24 | 上海汇众汽车制造有限公司 | Automobile front subframe |
| CN107683226A (en) * | 2015-04-24 | 2018-02-09 | 丰田铁工株式会社 | Bumper reinforcement |
| CN109229210A (en) * | 2018-09-26 | 2019-01-18 | 凌云工业股份有限公司汽车零部件研发分公司 | A kind of vehicle beam and processing method with high bending resistance energy |
| CN109229042A (en) * | 2018-08-20 | 2019-01-18 | 上海思致汽车工程技术有限公司 | A kind of automobile buffer beam |
| CN109436092A (en) * | 2018-09-26 | 2019-03-08 | 凌云工业股份有限公司汽车零部件研发分公司 | Anti-collision beam and roll-forming method before a kind of roll-in for kart |
| CN209290498U (en) * | 2018-09-26 | 2019-08-23 | 凌云工业股份有限公司汽车零部件研发分公司 | A kind of anti-collision beam with high bending resistance energy |
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2020
- 2020-06-11 CN CN202010526811.0A patent/CN111845942A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001239903A (en) * | 2000-02-29 | 2001-09-04 | Katayama Kogyo Co Ltd | Vehicular bumper |
| US20050285416A1 (en) * | 2004-06-25 | 2005-12-29 | Heatherington David W | Vehicle bumper beam |
| CN101124107A (en) * | 2004-06-25 | 2008-02-13 | 沙普公司 | Vehicle bumper beam |
| CN201784681U (en) * | 2009-12-31 | 2011-04-06 | 浙江吉利汽车研究院有限公司 | Automotive energy-absorbing front cross beam |
| CN201685776U (en) * | 2010-05-28 | 2010-12-29 | 凌云工业股份有限公司 | Double-energy-absorption small car front anti-collision beam |
| CN202201045U (en) * | 2011-07-29 | 2012-04-25 | 重庆长安汽车股份有限公司 | Front collision transverse beam |
| CN204037659U (en) * | 2014-08-12 | 2014-12-24 | 上海汇众汽车制造有限公司 | Automobile front subframe |
| CN107683226A (en) * | 2015-04-24 | 2018-02-09 | 丰田铁工株式会社 | Bumper reinforcement |
| CN109229042A (en) * | 2018-08-20 | 2019-01-18 | 上海思致汽车工程技术有限公司 | A kind of automobile buffer beam |
| CN109229210A (en) * | 2018-09-26 | 2019-01-18 | 凌云工业股份有限公司汽车零部件研发分公司 | A kind of vehicle beam and processing method with high bending resistance energy |
| CN109436092A (en) * | 2018-09-26 | 2019-03-08 | 凌云工业股份有限公司汽车零部件研发分公司 | Anti-collision beam and roll-forming method before a kind of roll-in for kart |
| CN209290498U (en) * | 2018-09-26 | 2019-08-23 | 凌云工业股份有限公司汽车零部件研发分公司 | A kind of anti-collision beam with high bending resistance energy |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022109798A1 (en) * | 2020-11-24 | 2022-06-02 | 武汉路特斯汽车有限公司 | Rear anti-collision beam |
| CN112498485A (en) * | 2020-12-11 | 2021-03-16 | 湖北航天技术研究院特种车辆技术中心 | Novel reinforcing cross beam and automobile frame |
| CN112498485B (en) * | 2020-12-11 | 2022-02-22 | 湖北航天技术研究院特种车辆技术中心 | Novel reinforcing cross beam and automobile frame |
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