CN111874101B - Transverse frame and manufacturing method thereof - Google Patents
Transverse frame and manufacturing method thereof Download PDFInfo
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- CN111874101B CN111874101B CN202010655094.1A CN202010655094A CN111874101B CN 111874101 B CN111874101 B CN 111874101B CN 202010655094 A CN202010655094 A CN 202010655094A CN 111874101 B CN111874101 B CN 111874101B
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- plate
- connecting plate
- reinforcing
- connection
- reinforcing plate
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a transverse frame and a manufacturing method thereof, wherein the transverse frame comprises a first connecting plate, a second connecting plate, a supporting plate, a reinforcing plate and a supporting plate, wherein the first connecting plate is used for connecting the upper end of a frame, the second connecting plate is used for connecting the lower end of the frame, the supporting plate is connected between the first connecting plate and the second connecting plate, the first connecting plate, the supporting plate and the second connecting plate form a U shape or an I shape, the upper end of the reinforcing plate and the lower end of the reinforcing plate are connected between the first connecting plate and the second connecting plate, and the rear end of the reinforcing plate is connected with the supporting plate. The transverse frame is formed by the combination of the first connecting plate, the second connecting plate, the supporting plate and the reinforcing plate, so that the transverse frame is light in weight and easy to detach and install, the strength and the rigidity of the transverse frame are better due to the fact that the U-shaped or I-shaped structure is formed by the first connecting plate, the supporting plate and the second connecting plate, and the strength and the rigidity of the transverse frame can be increased by the reinforcing plate, so that the automobile body can be impacted.
Description
Technical Field
The invention relates to the technical field of support, in particular to a transverse frame and a manufacturing method thereof.
Background
The passenger car frame is an assembly foundation of the whole passenger car, wherein the tail transverse frame is used as the tail end of the frame, and is an important precondition for ensuring the torsional rigidity of the frame and bearing longitudinal load.
The existing tail transverse frame is large in mass and low in strength and rigidity.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the transverse frame which is light in weight and good in strength and rigidity.
The invention also provides a manufacturing method of the transverse frame.
According to the transverse frame of the first aspect of the embodiment of the invention, the transverse frame comprises a first connecting plate, a second connecting plate, a supporting plate and a reinforcing plate, wherein the first connecting plate is used for connecting the upper end of the frame, the second connecting plate is used for connecting the lower end of the frame, the supporting plate is connected between the first connecting plate and the second connecting plate, the first connecting plate, the supporting plate and the second connecting plate form a U shape or an I shape, the upper end of the reinforcing plate and the lower end of the reinforcing plate are connected between the first connecting plate and the second connecting plate, and the rear end of the reinforcing plate is connected with the supporting plate.
The transverse frame has the advantages that the transverse frame is formed by the combination of the first connecting plate, the second connecting plate, the supporting plate and the reinforcing plate, so that the transverse frame is light in weight and easy to detach and install, the strength and the rigidity of the transverse frame are better due to the fact that the first connecting plate, the supporting plate and the second connecting plate form a U shape or an I shape, and moreover, the reinforcing plate can also increase the strength and the rigidity of the transverse frame, so that a vehicle body can withstand impact.
According to some embodiments of the invention, the first connection plate and the second connection plate are provided with connection ends, the connection ends are provided with arc structures, the arc structures are used for unloading stress of the transverse frame, and the arc structures can increase strength of the connection ends.
According to some embodiments of the invention, the connecting ends of the first connecting plate and the second connecting plate are both protruded forward to form an arch structure, and the arch structure can enhance the anti-collision capability of the frame.
According to some embodiments of the invention, the connecting end is provided with a plurality of connecting holes which are distributed in an array, and the connecting holes enable the connection strength of the cross frame and the frame to be better than that of a single connecting hole.
According to some embodiments of the invention, the supporting plate comprises a vertical part and an inclined part which are distributed from top to bottom in sequence, the inclined part is inclined downwards from back to front, and the inclined part can reserve a trailer hook space at the rear end of the frame.
According to some embodiments of the invention, the vertical portion is provided with positioning mounting holes, and the positioning mounting holes are used for positioning the frame, so that the cross frame is convenient to mount.
According to some embodiments of the invention, the vertical part is provided with a jack, and the rear end of the reinforcing plate is provided with a pin for connecting the jack, so that the reinforcing plate can be conveniently connected.
A method of manufacturing a cross frame comprising the steps of:
Preparing 510L steel plates;
Processing, namely forming a first connecting plate, a supporting plate and a second connecting plate by cutting the 510L steel plate through laser;
Cutting holes, namely cutting connecting holes at corresponding positions of the first connecting plate and the second connecting plate by adopting laser;
Bending, namely bending the first connecting plate along the bending line of the first connecting plate and the supporting plate to enable the first connecting plate to be perpendicular to the supporting plate;
manufacturing a reinforcing plate, namely cutting a 510L steel plate by laser to form the reinforcing plate, and simultaneously cutting pins and wire passing openings of the reinforcing plate;
and welding, namely inserting pins of the reinforcing plate into the insertion holes, and welding the reinforcing plate on the transverse frame through carbon dioxide arc welding.
The manufacturing method of the transverse frame has the advantages that the bending processing mode is adopted, the integrity of the transverse frame is guaranteed, namely, the structural strength and rigidity of the transverse frame can be kept, the mounting positioning holes and the insertion holes are processed in a laser cutting mode conveniently and quickly, meanwhile, the reinforcing plate is formed by laser cutting, and the manufacturing method is suitable for mass production and improves efficiency.
According to some embodiments of the invention, in the welding step, a height of a welding seam between the reinforcing plate and the first connecting plate or the second connecting plate is 5mm, the welding seam is a V-shaped groove, a length of the welding seam is 30mm, and the welding seam is far away from a bending side of the transverse frame, so that strength of the transverse frame is prevented from being broken by thermal deformation.
According to some embodiments of the invention, a ratio of the width of the first connecting plate or the width of the second connecting plate to the width of the supporting plate is 1:3, so as to avoid bending deformation caused by the too wide width of the first connecting plate or the too wide width of the second connecting plate.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of a cross frame according to an embodiment of the present invention;
FIG. 2 is an exploded view of the cross frame shown in FIG. 1;
FIG. 3 is a right side view of the cross frame shown in FIG. 1;
fig. 4 is a top view of the first or second connection plates of the cross frame shown in fig. 1.
A first connection plate 100, a second connection plate 200, a support plate 300, a reinforcing plate 400, a connection end 500,
Arc structure 510, connecting hole 520, vertical portion 310, inclined portion 320, positioning and mounting hole 311,
Jack 312, pin 420, hollowed-out hole 314, wire harness hole 321, wire passing port 410.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, plural means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and the above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 to 4, a cross frame includes a first connection plate 100 for connecting an upper end of a vehicle frame, a second connection plate 200 for connecting a lower end of the vehicle frame, a support plate 300 connected between the first connection plate 100 and the second connection plate 200, the first connection plate 100, the support plate 300 and the second connection plate 200 forming a U-shape or an i-shape, a reinforcement plate 400, an upper end of the reinforcement plate 400 and a lower end of the reinforcement plate 400 being connected between the first connection plate 100 and the second connection plate 200, a rear end of the reinforcement plate 400 being connected to the support plate 300. The cross frame is formed by the combination of the first connection plate 100, the second connection plate 200, the support plate 300 and the reinforcement plate 400, so that the cross frame is lighter in weight and easier to disassemble and assemble, and the strength and rigidity of the cross frame are better due to the fact that the first connection plate 100, the support plate 300 and the second connection plate 200 form a U shape or an I shape, and moreover, the reinforcement plate 400 can also increase the strength and rigidity of the cross frame, so that the vehicle body can withstand an impact. It is understood that the carbon dioxide gas shielded welding is performed between the reinforcing plate 400 and the first connection plate 100, between the reinforcing plate 400 and the second connection plate 200, and between the reinforcing plate 400 and the support plate 300. Note that, the first connection plate 100 and the second connection plate 200 are each provided with a protrusion for increasing the welding surface of the reinforcing plate 400 and increasing the welding strength. It is understood that the reinforcing plate 400 is formed by cutting a 510L steel plate with a thickness of 5mm by laser, and has simple process and high production efficiency, and can be mass-produced, and it is understood that the first connecting plate 100, the supporting plate 300 and the second connecting plate 200 can be welded into a U shape or an i shape in sequence, or formed by bending a plate twice.
It is understood that 510L refers to a hot rolled steel plate and a steel belt for a GB/T3273-2005 automobile girder, and the grade of the steel consists of a lower limit value of tensile strength and an initial letter L of Chinese phonetic alphabet girder. For example 510L, where 510 represents the lower limit of tensile strength in N/mm 2. L-represents the longitudinal and transverse frames of the automobile. The material is commonly used in the automobile industry and is used for an automobile girder plate.
In some embodiments, the first connection plate 100, the support plate 300 and the second connection plate 200 constitute a U-shaped or I-shaped cross frame formed by bending 510L-shaped steel. It will be appreciated that the reinforcement plate 400 is provided with a chamfer near the bend, which is used to avoid the bend location of the cross frame, reducing the deformation of the cross frame to enhance the torsional properties of the cross frame.
In some embodiments, the first connection plate 100 and the second connection plate 200 are provided with connection ends 500, the connection ends 500 are provided with arc structures 510, the arc structures 510 are used for unloading the stress of the cross frame, and the arc structures 510 can increase the strength of the connection ends 500. It should be noted that, the outer contour turning position of the connection end 500 is provided with a rounded corner, which can enhance the structural rigidity of the connection end 500 and reduce stress concentration.
In some embodiments, the connection end 500 of the first connection plate 100 and the connection end 500 of the second connection plate 200 are both protruded forward to form an arch structure, and the arch structure can enhance the impact resistance of the vehicle frame.
In some embodiments, the connection end 500 is provided with a plurality of connection holes 520 distributed in an array, and the plurality of connection holes 520 enable the connection strength of the cross frame and the vehicle frame to be better than that of a single connection hole.
In some embodiments, the supporting plate 300 includes a vertical portion 310 and an inclined portion 320 sequentially distributed from top to bottom, the inclined portion 320 is inclined downward from back to front, and the inclined portion 320 can reserve a trailer hook space installed at the rear end of the frame and can play a role of anti-collision skid.
In some embodiments, the vertical portion 310 is provided with a positioning mounting hole 311, and the positioning mounting hole 311 is used for positioning the frame, so as to facilitate the installation of the cross frame.
In some embodiments, the insertion holes 312 are provided on the vertical portion 310, and pins 420 for connecting the insertion holes 312 are provided at the rear end of the reinforcing plate 400, so that the reinforcing plate 400 can be easily connected. The provision of the insertion holes 312 can avoid direct welding of the vertical portion 310 of the support plate 300, reduce stress concentration, and maintain structural rigidity.
In some embodiments, the vertical portion 310 is provided with a hollowed-out hole 314, and the hollowed-out hole 314 is used for reducing the weight of the cross frame.
In some embodiments, the inclined portion 320 is provided with a plurality of wire harness holes 321, and the wire harness holes 321 facilitate binding the cable.
In some embodiments, the reinforcing plate 400 is provided with a wire passing opening 410, and the wire passing opening 410 is used for passing a cable, so that the wiring space is saved.
A method of manufacturing a cross frame comprising the steps of:
Preparing 510L steel plates;
processing, namely forming a first connecting plate 100, a supporting plate 300 and a second connecting plate 200 by cutting 510L steel plates through laser;
cutting holes, namely cutting connecting holes 520 at corresponding positions of the first connecting plate 100 and the second connecting plate 200 by adopting laser, and cutting mounting positioning holes 311 and insertion holes 312 on the supporting plate 300;
Bending, namely bending the first connecting plate 100 along the bending line of the first connecting plate 100 and the supporting plate 300 to enable the first connecting plate 100 to be perpendicular to the supporting plate 300, bending the second connecting plate 200 along the bending line of the second connecting plate 200 and the supporting plate 300 to enable the second connecting plate 200 to be perpendicular to the supporting plate 300;
manufacturing a reinforcing plate, namely forming a reinforcing plate 400 by cutting a 510L steel plate through laser, and simultaneously cutting pins 420 and wire passing openings 410 of the reinforcing plate 400 together;
and welding, wherein pins 420 of the reinforcing plate 400 are inserted into the insertion holes 312, and the reinforcing plate 400 is welded to the cross frame by carbon dioxide arc welding.
The bending processing mode is adopted, so that the integrity of the transverse frame is ensured, namely, the structural strength and rigidity of the transverse frame can be maintained, the mounting positioning holes 311 and the insertion holes 312 are processed by utilizing the laser cutting mode, the reinforcing plate 400 is formed by laser cutting, and the method is suitable for mass production and improves the efficiency.
In some embodiments, in the welding step, the height of the welding seam between the reinforcing plate 400 and the first or second connection plates 100 or 200 is 5mm, the welding seam is a V-groove, the length of the welding seam is 30mm, and the welding seam is far away from the bending side of the cross frame, so that the strength of the cross frame is prevented from being broken by thermal deformation. It can be understood that the welding seam is a V-shaped groove, the groove is convenient to process, and the welding is single-sided welding, so that workpieces do not need to be turned over, and the time is saved and the efficiency is improved.
In some embodiments, the ratio of the width of the first connection plate 100 or the width of the second connection plate 200 to the width of the support plate 300 is controlled to be 1:3, so as to avoid bending deformation caused by the excessive width of the first connection plate 100 or the second connection plate 200. It is understood that the width of the first connection plate 100 or the width of the second connection plate 200 refers to the width of both in the front-rear direction, and the width of the support plate 300 refers to the width of the support plate 300 in the vertical direction.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010655094.1A CN111874101B (en) | 2020-07-09 | 2020-07-09 | Transverse frame and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010655094.1A CN111874101B (en) | 2020-07-09 | 2020-07-09 | Transverse frame and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN111874101A CN111874101A (en) | 2020-11-03 |
| CN111874101B true CN111874101B (en) | 2024-12-17 |
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| CN202010655094.1A Active CN111874101B (en) | 2020-07-09 | 2020-07-09 | Transverse frame and manufacturing method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212605422U (en) * | 2020-07-09 | 2021-02-26 | 中兴智能汽车有限公司 | Cross frame |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005015423A1 (en) * | 2005-04-04 | 2006-10-05 | Man Nutzfahrzeuge Ag | Closure cross bar for use in commercial vehicle, has mounting lug vertically arranged on both sides of middle bar, extending over entire height of bar and including holes that are arranged in mounting planes of other mounting lugs |
| DE102011010201A1 (en) * | 2011-02-03 | 2012-08-09 | Daimler Ag | End cross-beam structure for commercial vehicle, has support elements that are connected with cross-beam portion and longitudinal beam portions which are provided in supporting frame |
| CN202987275U (en) * | 2012-12-05 | 2013-06-12 | 上汽依维柯红岩商用车有限公司 | Installation structure of truck tail beam |
| CN204184447U (en) * | 2014-11-14 | 2015-03-04 | 安徽江淮汽车股份有限公司 | A kind of rear cross beam assembly |
| CN207773238U (en) * | 2018-01-20 | 2018-08-28 | 日照兴业汽车配件有限公司 | Frame cross assembly |
| CN207773248U (en) * | 2018-01-20 | 2018-08-28 | 日照兴业汽车配件有限公司 | A kind of frame cross assembly |
| CN210592126U (en) * | 2019-06-26 | 2020-05-22 | 金龙联合汽车工业（苏州）有限公司 | Tail crossbeam for fixing large towing hook device |
| CN210680919U (en) * | 2019-10-22 | 2020-06-05 | 陕西汽车集团有限责任公司 | Steel plate welding type frame of special tractor in steel mill |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212605422U (en) * | 2020-07-09 | 2021-02-26 | 中兴智能汽车有限公司 | Cross frame |
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