CN114850312A - Preparation process of frame cross beam, frame assembly and vehicle - Google Patents
Preparation process of frame cross beam, frame assembly and vehicle Download PDFInfo
- Publication number
- CN114850312A CN114850312A CN202210669328.7A CN202210669328A CN114850312A CN 114850312 A CN114850312 A CN 114850312A CN 202210669328 A CN202210669328 A CN 202210669328A CN 114850312 A CN114850312 A CN 114850312A
- Authority
- CN
- China
- Prior art keywords
- frame
- cross member
- cross
- vehicle
- mounting
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
-
- 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
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
本发明涉及一种车架横梁的制备工艺、车架横梁、车架总成以及车辆，其中，车架横梁的制备工艺包括步骤：对板料进行辊压，使板料具有弯曲弧度；将板料沿其弯曲方向的两端连接，以形成车架横梁；向车架横梁的内部充入高压气体，以在车架横梁沿其纵长方向上依次形成连接部、安装部以及避让部；其中，车架横梁在连接部、安装部及避让部处的横截面的形状不同。本申请在车架横梁上分别形成具有不同形状横截面的连接部、安装部以及避让部，以形成变截面的车架横梁，使得车架横梁上不同位置的截面形状与对应的安装环境相互匹配，能够减小车架横梁的总安装空间，提高车架横梁与车辆中其他结构的安装适配度，使得车辆整体结构更加紧凑。
The invention relates to a preparation process of a frame beam, a frame beam, a frame assembly and a vehicle, wherein the preparation process of the frame beam comprises the steps of: rolling a sheet material to make the sheet material have a bending arc; The two ends of the material along its bending direction are connected to form the frame beam; the interior of the frame beam is filled with high-pressure gas to form the connection part, the installation part and the avoidance part in sequence along the longitudinal direction of the frame beam; wherein , the shape of the cross-section of the frame beam at the connection part, the installation part and the avoidance part is different. In the present application, a connecting portion, a mounting portion, and an escape portion with different cross-sections are respectively formed on the frame beam, so as to form a frame beam with variable cross-section, so that the cross-sectional shapes of different positions on the frame beam match the corresponding installation environment. , which can reduce the total installation space of the frame beam, improve the installation fit of the frame beam and other structures in the vehicle, and make the overall structure of the vehicle more compact.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a frame cross beam, a frame assembly and a vehicle.
Background
The frame assembly is a ridge beam structure of the whole vehicle and plays a role in supporting the vehicle. In the frame assembly, the frame cross beam plays an important role in connection and support.
At present, the frame cross beam adopts round tubular beams or channel beam structure more, and when the frame cross beam is installed to the vehicle, great installation space needs to be reserved, and not convenient for mutually support with other installation structures, is unfavorable for the rational arrangement of whole car.
Disclosure of Invention
Therefore, it is necessary to provide a manufacturing process of a frame cross member, a frame assembly and a vehicle, aiming at the problem that the existing frame cross member occupies a large installation space.
In a first aspect, the application provides a frame cross member manufacturing process, comprising the steps of:
rolling a plate to enable the plate to have a bending radian;
connecting two ends of the plate material along the bending direction of the plate material to form a frame cross beam;
filling high-pressure gas into the frame cross beam to form a connecting part, an installing part and an avoiding part in sequence on the frame cross beam along the longitudinal direction of the frame cross beam; the cross sections of the frame cross beam at the connecting part, the mounting part and the avoiding part are different in shape.
Therefore, when high-pressure gas is filled into the frame cross beam to form different cross section shapes, the different cross section shapes can be formed according to the specific installation environment of the frame cross beam. Even the cross-sectional shapes of the frame cross beam after being molded at different positions can be matched with the corresponding mounting environments, so that the mutual interference between each position on the frame cross beam and other mounting structures is avoided.
In some embodiments, before the step of rolling the sheet material to make the sheet material have a curvature, the method further comprises the steps of:
rolling an original plate material, and rolling the original plate material at a first position, a second position and a third position to form different thicknesses so as to form the plate material;
the first position corresponds to the position of the connecting part, the second position corresponds to the position of the mounting part, and the third position corresponds to the position of the avoiding part.
Therefore, after the original plate is rolled, different thicknesses can be formed at different positions according to specific requirements, and the light weight requirement after the frame cross beam is formed is met.
In some embodiments, before the step of filling high-pressure gas into the frame cross member along the axial direction of the frame cross member to form the connecting portion, the mounting portion and the avoiding portion with different sections in the radial direction of the frame cross member, the method further comprises the steps of:
heating the frame rail to austenize the frame rail.
Therefore, the frame cross beam has good plasticity so as to be convenient for filling high-pressure gas subsequently and forming different positions of the frame cross beam into different cross section shapes.
In a second aspect, the present application provides a frame cross member, include along axial distribution and interconnect's connecting portion, installation department and dodge the portion, connecting portion the installation department and dodge the portion and be in frame cross member footpath has different cross-sections.
Because connecting portion, installation department and dodge the portion and have different cross sectional shape respectively, when the frame cross beam was installed to the vehicle on, the frame cross beam not only can be connected with other stable in structure, can also mutually support with the outside profile of other structures for the overall installation structure of vehicle is compacter.
In some embodiments, the connecting portions are located at two opposite ends of the frame cross beam along the axial direction of the frame cross beam, and the cross section of the connecting portions in the radial direction of the frame cross beam is in a circular ring shape.
The connecting part is used for connecting the frame cross beam with other structures, so that the cross section of the connecting part in the radial direction of the frame cross beam is in a circular ring shape, and the connecting part is stably connected with other structures.
In some embodiments, the mounting portion is outwardly protruded along a part of the circumferential direction thereof to form at least one mounting surface, and each mounting surface is provided with a mounting hole.
The installation part is provided with a convex part in the circumferential direction, so that a plane installation surface can be formed on the installation part. After the mounting surface is provided with the mounting hole, the bumper overturning shaft can be fixed on the mounting surface through the rivet nut, so that the bumper is stably connected with the frame cross beam.
In some embodiments, the relief portions are recessed inwardly toward each other along radially opposite ends thereof to form relief surfaces.
The avoiding part is arranged along the radial opposite ends of the avoiding part towards the inwards concave direction, so that the front ventilation area can be increased, and the heat dissipation performance is improved.
In some embodiments, the connecting portion, the mounting portion, and the relief portion have different thicknesses therebetween. On the basis of guaranteeing the respective installation intensity of connecting portion, installation department and dodge portion, set up to the overall weight that the unequal thickness structure can reduce the frame cross member, realize the lightweight of frame cross member.
In some embodiments, the frame rail further includes a transition portion axially connected between the connecting portion, the mounting portion, and the relief portion along the frame rail. Therefore, the arrangement of the transition part can ensure the continuity of the overall structure of the frame cross beam.
In a third aspect, the present application provides a frame assembly including a frame rail as described above.
In a fourth aspect, the present application provides a vehicle comprising a frame assembly as described above.
Above-mentioned frame cross's preparation technology, frame cross, frame assembly and vehicle, the axial along frame cross forms the connecting portion that have different cross-sections on frame cross respectively, installation department and dodge the portion, in order to form the frame cross of variable cross-section, therefore, connecting portion, the cross sectional shape of installation department and dodge the portion can set up respectively according to the installation environment when frame cross specifically installs, make the cross sectional shape of different positions on the frame cross match each other with the installation environment that corresponds, can reduce frame cross's total installation space, improve the installation adaptation degree of other structures in frame cross and the vehicle, make vehicle overall structure compacter.
Drawings
FIG. 1 is a schematic overall structural view of a frame rail according to some embodiments of the present application;
FIG. 2 is a side view of the frame rail shown in FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic view of the connection of a cross-frame rail to a cross-frame rail bracket according to some embodiments of the present application;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 2;
in the figure: 100. a frame cross member; 201. a frame cross member bracket; 10. a connecting portion; 20. an installation part; 30. an avoidance part; 21. a mounting surface; 31. an avoidance surface; 211. and (7) installing holes.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 and 2, an embodiment of the present invention provides a manufacturing process of a frame cross member 100, including the steps of:
s10: and rolling the plate to make the plate have a bending radian.
It should be noted that the rolling process is continuous rolling until the sheet is continuously rolled to form a U-shaped structure with a certain curvature, so as to facilitate subsequent operations.
S20: the two ends of the sheet material in its bending direction are joined to form the frame rail 100.
Specifically, the plate material can adopt 1500 MPa-level steel plates. And the plate after continuous rolling is in a U-shaped structure, and two ends of the plate in the bending direction are punched and welded, so that a closed O-shaped hollow tubular structure is formed. The hollow tubular structure can reduce the weight of the frame cross member 100 as much as possible while ensuring the stress strength of the frame cross member 100, and thus reduce the weight of the entire vehicle structure.
S30: high-pressure gas is charged into the interior of the frame cross member 100 to form the connecting portion 10, the mounting portion 20, and the escape portion 30 in this order in the longitudinal direction of the frame cross member 100. The cross-sectional shapes of the frame cross member 100 at the connecting portion 10, the mounting portion 20, and the escape portion 30 are different.
After the cross member 100 is formed into the O-shaped hollow tubular structure, high-pressure gas may be filled into the cross member 100 along the axial direction of the cross member 100, and pre-pressing, pressurizing and quenching may be performed, so that different cross-sectional shapes may be formed at different positions of the cross member 100 along the axial direction of the cross member 100.
Further, the installation environment of the cross-frame member 100 is not completely the same for vehicles of different models. Accordingly, when the high-pressure gas is filled into the cross member 100 to form different sectional shapes, the cross members 100 may be formed in different sectional shapes according to the specific installation environment. Even if the cross-sectional shapes of the cross member 100 after molding at different positions can be matched with the respective corresponding mounting environments, the cross member 100 can be prevented from interfering with other mounting structures at various positions.
In addition, when the high-pressure gas is filled into the frame cross member 100, the high-pressure gas may be high-pressure nitrogen gas. High-pressure nitrogen gas is charged into the frame cross member 100 in the axial direction thereof, and pre-pressing, pressurizing and quenching are performed to make different positions have different sectional shapes.
In some embodiments, before the step of rolling the sheet material to make the sheet material have a curvature, the method further comprises the steps of:
s09: and rolling the original plate material, and rolling the original plate material at a first position, a second position and a third position to form different thicknesses so as to form the plate material. Wherein the first position corresponds to the position of the connecting portion 10, the second position corresponds to the position of the mounting portion 20, and the third position corresponds to the position of the escape portion 30.
It should be noted that, after the sheet material is rolled and welded into the closed cross member 100, the magnitude of the external force applied to the cross member 100 at different positions along the axial direction thereof during the use is different. Accordingly, in order to reduce the weight of the cross member 100, the thickness of the cross member 100 at a position where the force is small can be reduced.
Based on the above situation, the original sheet needs to be rolled before the sheet is rolled and welded, so that the original sheet can be formed into different thicknesses at different positions according to specific requirements, and the lightweight requirement of the formed frame cross beam 100 can be met.
Specifically, in the process of rolling the original plate, rolling can be performed according to the corresponding positions of the connecting portion 10, the mounting portion 20 and the avoiding portion 30, so that the thickness requirements corresponding to the connecting portion 10, the mounting portion 20 and the avoiding portion 30 are met.
As a preferred embodiment, the thickness of the connecting portion 10 may be set to 2 mm, the thickness of the mounting portion 20 may be set to 1.8 mm, and the thickness of the escape portion 30 may be set to 1.6 mm. Of course, in some other embodiments, the thickness of the connection portion 10, the installation portion 20, and the avoiding portion 30 may also be set according to their respective actual stress conditions, which is not described herein again.
In some embodiments, before the step of filling high-pressure gas into the frame cross member 100 along the axial direction thereof to form the connecting portion 10, the mounting portion 20 and the avoiding portion 30 having different cross sections in the radial direction of the frame cross member 100, the method further comprises the steps of:
s21: the frame rail 100 is heated to austenitize the frame rail 100.
Specifically, the cross frame member 100 may be heat treated to austenitize prior to the introduction of high pressure gas into the interior of the cross frame member 100. Therefore, the frame cross member 100 has good plasticity, so that high-pressure gas can be filled in the frame cross member 100 and different positions of the frame cross member 100 can be molded into different cross-sectional shapes.
Based on the same concept as the manufacturing process of the frame cross member 100, the present application provides a frame cross member 100 manufactured by the manufacturing process of the frame cross member 100. The frame cross beam 100 includes a connecting portion 10, a mounting portion 20, and an avoiding portion 30 that are distributed along an axial direction and are connected to each other, and the connecting portion 10, the mounting portion 20, and the avoiding portion 30 have different cross sections in a radial direction of the frame cross beam 100.
Because the connecting portion 10, the mounting portion 20 and the avoiding portion 30 have different cross-sectional shapes, when the frame cross member 100 is mounted on a vehicle, the frame cross member 100 can be stably connected with other structures and can be matched with the external profiles of other structures, so that the overall mounting structure of the vehicle is more compact.
Referring to fig. 1 and 3 together, in some embodiments, the connecting portions 10 are located at two opposite ends of the cross member 100 along the axial direction of the cross member 100, and the cross section of the connecting portion 10 in the radial direction of the cross member 100 is circular.
Specifically, as shown in fig. 4, the connecting portion 10 is used for connecting the frame rail 100 to other structures. When frame cross member 100 is used, it is necessary to connect connecting portion 10 to frame cross member bracket 201 to fixedly mount frame cross member 100 to the vehicle. Since the joint of the cross member bracket 201 is annular, the cross-sectional shape of the connecting portion 10 in the radial direction of the cross member 100 is annular, and the joint of the connecting portion 10 and the cross member bracket 201 is stably connected by a friction welding process.
Referring to fig. 1 and 5, in some embodiments, the mounting portion 20 is protruded outward along a portion of the circumferential direction thereof to form at least one mounting surface 21, and each mounting surface 21 is opened with a mounting hole 211.
By providing the mounting portion 20 with a portion in the circumferential direction protruding outward, the mounting portion 20 can be formed with the flat mounting surface 21. After the mounting surface 21 is provided with the mounting hole 211, the bumper overturning shaft can be fixed on the mounting surface 21 through a rivet nut, so that the bumper is stably connected with the frame cross beam 100.
Referring to fig. 6, in some embodiments, the relief portions 30 are recessed inwardly toward each other along radially opposite ends thereof to form relief surfaces 31.
Specifically, when the cross-frame rail 100 is mounted to the vehicle, the cross-frame rail 100 is positioned forward of the water tank in a direction from the head of the vehicle toward the rear of the vehicle. During the running process of the vehicle, the heat dissipation of the water tank is important. The escape portions 30 are recessed inwardly toward each other along opposite ends thereof in the radial direction, and the recessed positions are provided in the vertical direction. Therefore, in the running process of the vehicle, the ventilation area in front of the water tank can be increased, so that the water tank can better dissipate heat.
In some embodiments, the thickness is not equal between the connecting portion 10, the mounting portion 20, and the relief portion 30. The connecting portion 10, the mounting portion 20, and the escape portion 30 are subjected to different forces in actual use of the frame cross member 100. Therefore, in order to further reduce the weight of the frame cross member 100, the thicknesses of the connecting portion 10, the mounting portion 20, and the escape portion 30 may be set to be different depending on the actual force applied thereto.
As a preferred embodiment, the thickness of the connecting portion 10 may be set to 2 mm, the thickness of the mounting portion 20 may be set to 1.8 mm, and the thickness of the escape portion 30 may be set to 1.6 mm. As a result, the weight of the frame cross member 100 can be reduced to the maximum extent while ensuring the respective stress strengths of the connecting portion 10, the mounting portion 20, and the escape portion 30.
It is understood that, in some other embodiments, the respective thicknesses of the connecting portion 10, the mounting portion 20, and the avoiding portion 30 may also be set to other ranges according to the actual stress condition thereof, which is not described herein.
In some embodiments, frame rail 100 further includes a transition portion (not shown) that is connected axially along frame rail 100 between connection portion 10, mounting portion 20, and relief portion 30.
Specifically, the cross-sectional shape of the transition portion may be circular, and the transition portion is connected between the connection portion 10, the mounting portion 20, and the escape portion 30, so that continuity of the overall structure of the frame cross member 100 may be ensured. Furthermore, the transition portion preferably has an outer diameter of 70 mm and a thickness of 1.8 mm. Of course, in some other embodiments, the outer diameter and the thickness of the transition portion may also be set to other ranges according to actual requirements, which are not described herein.
Based on the same concept as the frame rail 100 described above, the present application provides a frame assembly including the frame rail 100 as described above.
When the frame cross member 100 is installed in the frame assembly, the connecting portion 10, the mounting portion 20, and the avoiding portion 30 of the frame cross member 100 have different cross-sectional shapes, respectively, so that the cross-sectional shapes can be matched with the respective corresponding installation environments. Therefore, the installation space of the frame cross beam 100 in the frame assembly can be reduced, and the frame cross beam 100 is matched with other structures in the frame assembly, so that the overall structure of the frame assembly is more compact.
Based on the same concept as the frame assembly described above, the present application provides a vehicle comprising a frame assembly as described above.
When the frame assembly is mounted on a vehicle, the connecting portion 10, the mounting portion 20 and the avoiding portion 30 on the frame cross member 100 have different cross-sectional shapes, respectively, so that the frame assembly can be matched with the respective corresponding mounting environments. Therefore, the installation space of the frame cross beam 100 in the frame assembly can be reduced, and the overall volume of the frame assembly is further reduced so as to meet the arrangement space of the front end of the vehicle.
In addition, since the connecting portion 10, the mounting portion 20, and the avoiding portion 30 are respectively set to have different thicknesses according to the respective stress conditions, the weight of the frame cross member 100 can be reduced while the strength of the stress thereof is ensured, and the weight of the entire vehicle structure can be reduced.
When the method is used specifically, firstly, the original plate is rolled in variable thickness, namely, different positions of the original plate are rolled into different thicknesses according to different stress conditions of different positions on the formed frame cross beam 100, and then the operations of annealing, coating, leveling, straightening, shearing and the like are carried out to form the ultrahigh-strength steel variable-thickness plate.
The ultrahigh-strength steel variable-thickness plate is continuously rolled into a U-shaped structure with a bending radian, and then is subjected to stamping welding, so that the ultrahigh-strength steel variable-thickness plate is formed into the frame cross beam 100 with an O-shaped tubular structure.
Further, the frame cross member 100 is heat-treated to be austenitized. Then, high-pressure nitrogen is filled into the frame cross member 100 in the axial direction thereof for pre-pressing, pressurizing and quenching, so that the connecting portion 10, the mounting portion 20 and the avoiding portion 30 of the frame cross member 100 are respectively formed into different cross-sectional shapes.
After the frame cross beam 100 is molded, the joint of the connecting portion 10 and the frame cross beam support 201 is connected by a friction welding process, so that the frame cross beam 100 is fixed on the frame cross beam support 201. After the fixing, a rivet nut is provided in the mounting hole 211 on the mounting portion 20, and the bumper roll-over shaft is fixed to the frame cross member 100 by the rivet nut, thereby fixing the bumper to the frame cross member 100. Therefore, the problem of inaccurate assembly of the bumper can be avoided, and the installation precision of the overall structure of the vehicle is improved.
The manufacturing process of the frame cross member 100, the frame assembly and the vehicle in the above embodiments have at least the following advantages:
1) the connecting part 10, the mounting part 20 and the avoiding part 30 on the frame cross beam 100 respectively have different cross-sectional shapes, so that when the frame cross beam 100 is mounted on a vehicle, the frame cross beam 100 can be matched with other structures on the vehicle, the mounting space of the frame cross beam 100 on the vehicle is reduced, and the overall structure of the vehicle is more compact;
2) the connecting portion 10, the mounting portion 20 and the avoiding portion 30 have different thicknesses, so that the overall weight of the frame cross member 100 can be reduced as much as possible while the self-stress strength is ensured, the weight of the frame cross member 100 is reduced, and the weight of the vehicle is reduced;
3) the mounting part 20 is provided with a mounting surface 21, and the mounting surface 21 is provided with a mounting hole 211, so that the mounting and fixing of the bumper overturning shaft can be realized, the bumper is stably mounted on the frame cross beam 100, and the mounting precision of the bumper is improved;
4) the vent surface 31 of the vent part 30 can increase the ventilation area of the cross member 100 and improve the heat dissipation performance of the water tank installed behind the cross member 100.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A preparation process of a frame cross beam is characterized by comprising the following steps:
rolling the plate to enable the plate to have a bending radian;
connecting two ends of the plate material along the bending direction of the plate material to form a frame cross beam;
filling high-pressure gas into the frame cross beam to form a connecting part, an installing part and an avoiding part in sequence on the frame cross beam along the longitudinal direction of the frame cross beam; the cross sections of the frame cross beam at the connecting part, the mounting part and the avoiding part are different in shape.
2. The process for manufacturing a vehicle frame cross member according to claim 1, wherein before the step of rolling the sheet material to make the sheet material have a curved arc, the process further comprises the steps of:
rolling an original plate material, and rolling the original plate material at a first position, a second position and a third position to form different thicknesses so as to form the plate material;
the first position corresponds to the position of the connecting part, the second position corresponds to the position of the mounting part, and the third position corresponds to the position of the avoiding part.
3. The process for manufacturing a cross member of a vehicle frame according to claim 1, wherein before the step of filling high-pressure gas into the cross member along the axial direction of the cross member to form the connecting portion, the mounting portion, and the avoiding portion having different cross sections in the radial direction of the cross member, the process further comprises the step of:
heating the frame rail to austenize the frame rail.
4. The utility model provides a frame cross member which characterized in that includes along axial distribution and interconnect's connecting portion, installation department and dodge the portion, connecting portion the installation department and dodge the portion and be in frame cross member footpath has different cross-sections.
5. The frame rail according to claim 4, wherein the connecting portions are located at opposite ends of the frame rail in an axial direction of the frame rail, and a cross section of the connecting portions in a radial direction of the frame rail is annular.
6. The frame rail of claim 4, wherein the mounting portion is outwardly convex along a portion of the perimeter thereof to define at least one mounting surface, each mounting surface defining a mounting hole.
7. The frame rail according to claim 4, wherein the relief portions are recessed inwardly toward each other along diametrically opposite ends thereof to form relief surfaces.
8. The vehicle frame rail of claim 4, wherein the connecting portion, the mounting portion, and the relief portion have different thicknesses therebetween.
9. The frame rail of claim 4, further comprising a transition portion axially connected between the connecting portion, the mounting portion, and the relief portion along the frame rail.
10. A frame assembly comprising a frame rail according to any of claims 4 to 9.
11. A vehicle comprising a frame assembly according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210669328.7A CN114850312A (en) | 2022-06-14 | 2022-06-14 | Preparation process of frame cross beam, frame assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210669328.7A CN114850312A (en) | 2022-06-14 | 2022-06-14 | Preparation process of frame cross beam, frame assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114850312A true CN114850312A (en) | 2022-08-05 |
Family
ID=82625170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210669328.7A Pending CN114850312A (en) | 2022-06-14 | 2022-06-14 | Preparation process of frame cross beam, frame assembly and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114850312A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6183013B1 (en) * | 1999-07-26 | 2001-02-06 | General Motors Corporation | Hydroformed side rail for a vehicle frame and method of manufacture |
| US20060201227A1 (en) * | 2004-10-01 | 2006-09-14 | Copperweld Canada Inc. | Vehicle structural components made from tubular members and method therefor |
| CN105163879A (en) * | 2013-06-28 | 2015-12-16 | 宝马股份公司 | Tool for preforming a tube for subsequent internal high pressure forming, as well as a method for producing such a tool and for producing a component by means of internal high pressure forming |
| CN110430949A (en) * | 2017-03-21 | 2019-11-08 | 住友重机械工业株式会社 | Formation system and forming method |
| CN210235096U (en) * | 2019-05-15 | 2020-04-03 | 东风商用车有限公司 | Lightweight frame assembly suitable for air suspension |
| CN113665671A (en) * | 2021-07-22 | 2021-11-19 | 一汽解放汽车有限公司 | Front cross member assembly and vehicle |
| WO2021238846A1 (en) * | 2020-05-29 | 2021-12-02 | 宝山钢铁股份有限公司 | Vehicle lower front protective cross beam, shaping method therefor and assembly thereof, and vehicle |
| CN215436611U (en) * | 2021-03-29 | 2022-01-07 | 长城汽车股份有限公司 | Crossbeam assembly, frame and vehicle |
| CN114506389A (en) * | 2020-11-16 | 2022-05-17 | 北汽福田汽车股份有限公司 | Frame cross member and vehicle |
-
2022
- 2022-06-14 CN CN202210669328.7A patent/CN114850312A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6183013B1 (en) * | 1999-07-26 | 2001-02-06 | General Motors Corporation | Hydroformed side rail for a vehicle frame and method of manufacture |
| US20060201227A1 (en) * | 2004-10-01 | 2006-09-14 | Copperweld Canada Inc. | Vehicle structural components made from tubular members and method therefor |
| CN105163879A (en) * | 2013-06-28 | 2015-12-16 | 宝马股份公司 | Tool for preforming a tube for subsequent internal high pressure forming, as well as a method for producing such a tool and for producing a component by means of internal high pressure forming |
| CN110430949A (en) * | 2017-03-21 | 2019-11-08 | 住友重机械工业株式会社 | Formation system and forming method |
| CN210235096U (en) * | 2019-05-15 | 2020-04-03 | 东风商用车有限公司 | Lightweight frame assembly suitable for air suspension |
| WO2021238846A1 (en) * | 2020-05-29 | 2021-12-02 | 宝山钢铁股份有限公司 | Vehicle lower front protective cross beam, shaping method therefor and assembly thereof, and vehicle |
| CN114506389A (en) * | 2020-11-16 | 2022-05-17 | 北汽福田汽车股份有限公司 | Frame cross member and vehicle |
| CN215436611U (en) * | 2021-03-29 | 2022-01-07 | 长城汽车股份有限公司 | Crossbeam assembly, frame and vehicle |
| CN113665671A (en) * | 2021-07-22 | 2021-11-19 | 一汽解放汽车有限公司 | Front cross member assembly and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5458393A (en) | Space frame apparatus and process for the manufacture of same | |
| US6585202B2 (en) | Multi-tiered carrier structure for a motor vehicle | |
| KR102181839B1 (en) | Method of producing a suspension leg turret | |
| US20070180697A1 (en) | Structural or chassis component for a motor vehicle, and method of making such a structural or chassis component | |
| US10625550B2 (en) | Control arm and method for producing a control arm | |
| DE102017102685A1 (en) | Deep-drawn tub made of aluminum for a battery carrier | |
| US8480104B2 (en) | Hardening of flexible trailing arms | |
| US20180104735A1 (en) | Press-working apparatus, press-working method, and press-molded product | |
| AU2002337716A2 (en) | Bumper crush tower with rings of varied strength | |
| JP4198445B2 (en) | Method and apparatus for manufacturing load receiving article for vehicle | |
| NO20151101A1 (en) | Control arm | |
| EP4549291A2 (en) | A vehicle structure | |
| US6584689B2 (en) | Multi-section support rail apparatus and method of making | |
| US20060196589A1 (en) | Run-flat tire support, method for manufacturing the same, and run-flat tire | |
| US20020141817A1 (en) | Knuckle bracket for a strut-type shock absorber | |
| JP4133302B2 (en) | Energy absorption member for car body | |
| CN114850312A (en) | Preparation process of frame cross beam, frame assembly and vehicle | |
| JP5503334B2 (en) | Structural member | |
| CN114746296A (en) | Double-rolling convex lobe non-pressure joint guide pipe | |
| CN207328623U (en) | Front wheel housing and vehicle | |
| EP3856427B1 (en) | Clamping strap | |
| CN112207200B (en) | Production line for base ring of tank cover and using method of production line | |
| JPH10258768A (en) | Automotive body parts and method of manufacturing the same | |
| JP2015091690A (en) | Exterior beam for vehicle and manufacturing method of the same | |
| EP1979183B1 (en) | Manufacturing method of an automobile impact beam with integrated brackets |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220805 |