Preparation process of automobile reinforcing beam and reinforcing beam

Abstract

The application provides a preparation process of a reinforcing beam of an automobile and the reinforcing beam, and the preparation process comprises the following steps: S100, extruding an aluminum alloy raw material to form an aluminum alloy profile structure with a cavity structure; S200, respectively placing first supporting blocks from both ends of the profile structure to middle connecting positions; S300, fixing the first supporting blocks; S400, processing connecting holes and mounting holes on the profile structure, and the middle connecting holes are through holes penetrating through the profile structure and the first supporting blocks; S500, respectively placing second supporting blocks from both ends of the profile structure to end connecting positions; and S600, fixing the second supporting blocks to obtain the reinforcing beam. In the preparation process, the first supporting blocks and the second supporting blocks are respectively placed at the middle connecting positions and the end connecting positions, the supporting blocks can support the corresponding connecting holes or mounting holes, so that the strength of the connecting and fixing positions of the reinforcing beam is improved, the problems of induced deformation and torque attenuation of the connecting and fixing positions of the reinforcing beam during the collision of the automobile are avoided, and the connecting strength is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile body structure, in particular, relates to a preparation process of automobile reinforcing beam, and further relates to a reinforcing beam processed by the preparation process. BACKGROUND

[0002] As an important part of the automobile, the performance of the automobile beam is directly related to the performance of the whole vehicle. With the development trend of lightweight of the automobile, the material used for the automobile beam will inevitably be reduced. How to ensure that the automobile beam structure is lightweight while maintaining high strength and deformation resistance, and is conducive to the reasonable arrangement of the whole vehicle is a problem to be solved by those skilled in the art.

[0003] At present, some passenger cars are provided with a reinforcing beam at the bottom of the middle channel, which is usually arranged in the middle of the middle channel. The beam is formed by welding upper and lower double-layer sheet metal around or only using a single-layer sheet metal stamping structure, and is fixed on the middle channel beam by fastening bolts. Due to the use of multi-layer sheet metal stamping parts for welding of the beam, the size of the beam assembly is often large due to the influence of part forming and welding performance, and the weight of the part is too high. However, the strength of the single-layer stamping sheet metal beam is obviously weak, which is obviously insufficient for improving the performance of the whole vehicle. Some passenger cars are provided with a reinforcing beam, and the beam is formed by extrusion of aluminum alloy. The level of lightweight is high. However, the upper surface of the fixed point is provided with an avoiding hole, which results in low rigidity of the beam fixing point, and induced deformation may occur during automobile collision, and the connection strength cannot be guaranteed.

[0004] In the patent with the patent number CN109835418A and the authorization date of 2019.06.04, a beam for an automobile and a beam structure for an automobile are disclosed. The disclosed beam structure has the risk of low rigidity of the beam fixing point, torque attenuation of the fastening bolt, induced deformation during automobile collision, and cannot guarantee the connection strength.

[0005] Therefore, based on the problems existing in the prior art, the present application provides a preparation process of automobile reinforcing beam and a reinforcing beam to solve one of the above technical problems. SUMMARY

[0006] The purpose of the present application is to provide a preparation process of automobile reinforcing beam and a reinforcing beam, which can solve at least one of the above technical problems. The specific scheme is as follows:

[0007] According to the specific embodiment of the present application, in the first aspect, the present application provides a preparation process of automobile reinforcing beam, comprising:

[0008] S100: extruding the aluminum alloy raw material to form an aluminum alloy profile structure with a cavity structure;

[0009] S200: respectively put first support blocks from both ends of the profile structure to the middle connecting position;

[0010] S300: fix the first support blocks;

[0011] S400: process connecting holes and mounting holes on the profile structure, and the middle connecting hole is a through hole penetrating the profile structure and the first support blocks;

[0012] S500: respectively put second support blocks from both ends of the profile structure to the end connecting position;

[0013] S600: fix the second support blocks to obtain a reinforced beam.

[0014] As preferred, the step 300 specifically comprises: at the corresponding position of the first support block, the profile structure has a first anchor point protruding into the cavity by pressure riveting, so as to define the position of the first support block.

[0015] As preferred, the step S100 further comprises:

[0016] S110: stamp the profile structure to form a first bending feature at the middle position of the profile structure, so that the profile structure sequentially forms a connecting mounting part, a avoiding part and a connecting mounting part along the longitudinal direction.

[0017] As preferred, the step S500 further comprises:

[0018] S410: second stamping is performed on the profile structure to form a second bending feature at the end position of the profile structure, so that the first support block is located between the first bending feature and the second bending feature.

[0019] As preferred, the stamping depth H2 of the first bending feature is 0-35mm, and the stamping round angle R2 is 50mm; the stamping depth H1 of the second bending feature is 0-20mm, and the stamping round angle R1 is 40mm.

[0020] As preferred, the step S200 further comprises: processing the support block raw material and performing weight reduction treatment to obtain the first support block with weight reduction holes.

[0021] The preparation process of the automobile reinforcing beam of the application first extrudes the aluminum alloy raw material to form an aluminum alloy profile structure with a cavity structure; then, the first support block is placed from both ends of the profile structure to the middle connecting part and fixed; the connecting hole and the mounting hole are processed on the profile structure, and the middle connecting hole is a through hole penetrating the profile structure and the first support block; the second support block is placed from both ends of the profile structure to the end connecting part and fixed, and the reinforcing beam is obtained. In the preparation process, the first support block and the second support block are respectively placed at the middle connecting part and the end connecting part, and the support block can support the corresponding connecting hole or mounting hole, thereby improving the strength of the reinforcing beam connecting and fixing part, avoiding the problem of induced deformation and torque attenuation of the reinforcing beam connecting and fixing part when the automobile collides, and improving the connecting strength.

[0022] According to the specific embodiment of the application, in the second aspect, a reinforcing beam is provided, which is prepared by any one of the preparation processes described above, comprising: a reinforcing beam body, at least two first support blocks symmetric about the transverse symmetry axis of the reinforcing beam fixedly arranged in the middle connecting part of the body, and at least two second support blocks symmetric about the transverse symmetry axis of the reinforcing beam fixedly arranged in the two end connecting parts of the body, wherein the middle connecting part and the end connecting part are respectively provided with first connecting holes and second connecting holes, and the first support blocks and the second support blocks are respectively provided with first support block connecting holes and second support block connecting holes corresponding to the first connecting holes and the second connecting holes.

[0023] Preferably, the middle connecting part is provided with a first anchor point protruding towards the first support block to fix the first support block; and the end connecting part is provided with a second anchor point protruding towards the second support block to fix the second support block.

[0024] Preferably, the body is provided with a first bending feature, and both ends of the first bending feature are respectively provided with at least one first support block.

[0025] Preferably, the first support block is a rectangular structure, and the first support block is provided with a weight-reducing hole.

[0026] The reinforced beam of the present application is provided with at least two first supporting blocks symmetrically arranged in the middle part of the body of the reinforced beam, at least two second supporting blocks symmetrically arranged in the two end parts of the body of the reinforced beam, first connecting holes and second connecting holes arranged in the middle part and the end part respectively, and first supporting block connecting holes and second supporting block connecting holes arranged in the first supporting blocks and the second supporting blocks respectively corresponding to the first connecting holes and the second connecting holes. In the process of installation and use, the first supporting blocks and the second supporting blocks not only play the role of installation and fixation, but also the first supporting blocks can strengthen the support of the first connecting holes of the reinforced beam, and the second supporting blocks can strengthen the support of the second connecting holes of the reinforced beam, so as to improve the strength of the connection and fixation of the reinforced beam, avoid the problems of induced deformation and torque attenuation of the connection and fixation of the reinforced beam when the automobile collides, and improve the connection strength. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A structural schematic diagram of a reinforced beam according to an embodiment of the present application is shown;

[0028] Figure 2 A front view of a reinforced beam according to an embodiment of the present application is shown;

[0029] Figure 3 A structural schematic diagram of Figure 2 a sectional view in the direction of A-A is shown;

[0030] Figure 4 A structural schematic diagram of Figure 2 a sectional view in the direction of B-B is shown;

[0031] Figure 5 A bottom view of a reinforced beam according to an embodiment of the present application is shown;

[0032] Figure 6 A structural schematic diagram of a middle supporting block in a reinforced beam according to an embodiment of the present application is shown;

[0033] Figure 7 A structural schematic diagram of an end supporting block in a reinforced beam according to an embodiment of the present application is shown;

[0034] Figure 8 A structural schematic diagram of the installation of a reinforced beam according to an embodiment of the present application is shown;

[0035] Figure 9 A structural schematic diagram of the cross section of a reinforced beam according to an embodiment of the present application is shown;

[0036] Figure 10 A structural schematic diagram of the cross section of a reinforced beam according to another embodiment of the present application is shown.

[0037] In the figure, 1 is the body, 10 is the first connecting part, 11 is the second connecting part, 20 is the mounting part, 30 is the avoiding part, 40 is the first supporting block, 50 is the second supporting block, 100 is the first bending feature, 101 is the second bending feature, 200 is the first anchor point, 201 is the second anchor point, 202 is the mounting hole, 300 is the first connecting hole, 301 is the second connecting hole, 302 is the first supporting block connecting hole, 303 is the second supporting block connecting hole, 304 is the weight-reducing hole, 400 is the frame, 500 is the supporting column, 600 is the auxiliary supporting structure. DETAILED DESCRIPTION

[0038] In order to make the purposes, technical solutions and advantages of the present application clearer, the following will further describe the present application with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0039] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Multiple" generally includes at least two.

[0040] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0041] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the description. For example, without departing from the scope of the embodiments of the present application, the first can also be called the second, and similarly, the second can also be called the first.

[0042] Depending on the context, the word "if" as used herein can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (a stated condition or event)" can be interpreted as "when determined" or "in response to determining" or "when detecting (a stated condition or event)" or "in response to detecting (a stated condition or event)".

[0043] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such commodity or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the commodity or device comprising said element.

[0044] It should be particularly noted that symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0045] The optional embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0046] The embodiments provided by the present application are an embodiment of a preparation process for an automotive reinforcing beam and a reinforcing beam.

[0047] Below in conjunction with Figures 1 to 10 The embodiments of the present application will be described in detail.

[0048] Embodiment 1

[0049] The preparation process for the automotive reinforcing beam provided by the embodiments of the present application includes:

[0050] S100: Extrude the aluminum alloy raw material to form an aluminum alloy profile structure with a cavity structure;

[0051] The cavity structure after the above extrusion is a cavity structure with a continuous and identical cross-sectional shape, and its cross-sectional shape can be set to shapes such as "eye", "day", "mouth", etc. according to the actual force-bearing situation of the reinforcing beam on the vehicle, as Figures 9 to 10 shown. Of course, the cavity structure of the reinforcing beam is not limited to the above shapes, and other suitable shapes can be selected adaptively. It should be noted that the above extrusion process is continuous extrusion until the aluminum alloy raw material forms a cavity structure with a continuous and identical cross-sectional shape for subsequent operations.

[0052] The above cavity structure has the same cross-sectional shape and has a consistent and unbroken strength effect. When the vehicle collides, the force transmission path is unbroken and the strength is high.

[0053] Specifically, the above aluminum alloy raw material can be 6351-T6.

[0054] S200: Place the first support blocks 40 at both ends of the profile structure respectively to the middle connection part;

[0055] In some embodiments, before the operation of feeding the support block into the interior of the stiffening beam cavity structure, further comprising: machining the original aluminum block and reasonably setting the program according to the structural characteristics of the stiffening beam to form the support block.

[0056] In some embodiments, before the operation of feeding the support block into the interior of the stiffening beam cavity structure, further comprising: machining the support block to reduce weight and make the support block lightweight.

[0057] Specifically, as shown in Figure 6 , the first support block 40 in the application is machined with a weight-reducing hole 304 to further lighten the stiffening beam. The first support block 40 can set different structures of the weight-reducing hole 304 according to the actual stress condition of the stiffening beam to achieve the weight-reducing effect.

[0058] In the embodiment, as shown in Figure 1 and Figure 2 , the support block is visually displayed, wherein the first support block 40 is a rectangular structure, the length direction of which is consistent with the length direction of the stiffening beam during installation, and two are installed side by side in the transverse direction. In actual use, the installation condition and the number of the support block can be adaptively adjusted according to the width of the stiffening beam, the number of connecting holes, the structure and size of the support block.

[0059] S300: fixing the first support block 40;

[0060] Specifically, referring to Figures 2 to 4 , the above fixing is mainly realized by the riveting process. At the corresponding position of the first support block 40, the profile structure is made to have a first anchor point 200 protruding into the cavity to define the position of the first support block 40.

[0061] The corresponding position of the above first support block 40 can be the outer peripheral corner of the first support block 40, or the inner edge corner of the first support block 40. When it is the inner edge corner, the inner circle of the first support block 40 has a space capable of accommodating the anchor point formed by the riveting process, as shown in Figure 1 and Figure 2 , that is, the anchor point is arranged at the inner edge corner of the first support block 40, at this time, the structure of the first support block 40 is as shown in Figure 6 , the anchor point is located in the weight-reducing hole 304 of the first support block 40 and is defined at the inner edge corner of the first support block 40. Preferably, the anchor point is arranged as at least three, which is arranged as four here. The arrangement of the first anchor point 200 can avoid the first support block 40 from moving in the subsequent process.

[0062] S400: machining connecting holes and mounting holes on the profile structure, and the middle connecting holes are through holes penetrating the profile structure and the first support block 40;

[0063] Processing the connecting hole and the mounting hole for mounting and fixing the strengthening beam.

[0064] In one embodiment of the present application, the middle connecting hole is the first connecting hole 300 and the first support block connecting hole 302, which can be processed once after the first support block 40 is fixed in place.

[0065] Specifically, the first connecting hole 300 is processed at the middle connecting position of the profile structure, the second connecting hole 301 is processed at the end connecting position, and the mounting hole 202 is processed at the corresponding position of the profile structure.

[0066] S500: Put the second support block 50 into the end connecting position from both ends of the profile structure respectively;

[0067] The end connecting position is provided with the second connecting hole 301, and the second support block 50 is provided with the second support block connecting hole 303. Pushing the second support block 50 to the position corresponding to the second support block connecting hole 303 and the second connecting hole 301 facilitates the subsequent mounting and fixing of the strengthening beam.

[0068] In the embodiment, as shown in Figure 1 and Figure 2 The support block is visually displayed. The second support block 50 is pushed to the position corresponding to the second support block connecting hole 303 and the second connecting hole 301, which is simple to push and does not need to rely on the bending shape of the beam itself for positioning, so the shape can be selected as a cylindrical structure which is easy to process and is installed side by side in the transverse direction. In actual use, the mounting and the number of support blocks can be adjusted adaptively according to the width of the strengthening beam, the number of connecting holes, the structure and size of the support block. As a preferred embodiment, the second support block connecting hole 303 on the second support block 50 is a larger mounting via hole than the second connecting hole 301.

[0069] Further, the first support block 40 of the plurality of middle connecting positions of the strengthening beam can be provided in a shape symmetrical about itself to achieve the purpose of universal support block, as shown in Figure 6 , but is not limited to the structure in the figure. The second support block 50 at both ends of the strengthening beam can be provided in a cylindrical shape with the same inner and outer diameters, so that the support block is universal, as shown in Figure 7 .

[0070] S600: Fix the second support block 50 to obtain the strengthening beam.

[0071] Specifically, the above fixing is mainly realized by the riveting process. At the corresponding position of the second support block 50, the profile structure has a second anchor point 201 protruding into the cavity by riveting, so as to limit the position of the second support block 50.

[0072] The corresponding position of the second support block 50 can be at the outer peripheral corner of the second support block 50, or at the inner corner of the second support block 50. When it is at the inner corner, the inner ring of the second support block 50 has a space capable of accommodating the anchor point formed by the press-in riveting process. Referring to Figures 1 to 2 In the case of setting the anchor point at the outer peripheral corner, in one specific embodiment of the present application, the second support block 50 is a cylindrical structure as shown in Figure 7 Therefore, the anchor point can be set at the outer periphery of the second support block 50, and at this time, in order to be better fixed, the anchor point can be set to at least three. The setting of the second anchor point 201 can avoid the second support block 50 from moving during the subsequent process.

[0073] Therefore, the support block built-in the connecting part has been fixed firmly by the anchor point, and when installed on the automobile, it can effectively prevent the torque attenuation of the fixing part, so as to stably connect the connecting part with other structures on the automobile. Specifically, the fixing part is a fastening bolt or other parts capable of realizing stable connection.

[0074] Embodiment 2

[0075] The preparation process of the automobile reinforcing beam provided by the embodiment of the present application comprises:

[0076] S100: extruding the aluminum alloy raw material to form an aluminum alloy profile structure with a cavity structure;

[0077] The cavity structure after the extrusion is a cavity structure with a continuous same cross-sectional shape, and the cross-sectional shape can be set as "eyes", "sun", "mouth" and the like according to the actual stress condition of the reinforcing beam on the automobile. Of course, the cavity structure of the reinforcing beam is not limited to the above shapes, and other suitable shapes can be adaptively selected.

[0078] The cavity structure has the same cross-sectional shape, has a consistent strength effect, and the force transmission path is not interrupted when the automobile collides, and the strength is high.

[0079] The above step S100 further comprises:

[0080] S110: stamping the profile structure to form a first bending feature 100 at the middle position of the profile structure, so as to avoid the vehicle body part during the installation process, so that the profile structure sequentially forms a connecting mounting part, an avoiding part 30 and a connecting mounting part in the longitudinal direction.

[0081] The stamping is targeted according to the vehicle body part to be avoided according to the actual installation, and therefore the first bending feature 100 formed by the stamping can be a U-shaped structure with a circular arc chamfer as shown in Figure 5 Or a semicircular structure, or other effective avoiding structures, which are not specifically limited here.

[0082] Specifically, referring to Figure 5 In the preferred embodiment of the present application, the stamping depth H2 of the first bending feature 100 can be set to within 0-35mm, and the stamping inner radius R2 can be set to 50mm.

[0083] S200: Put the first support block 40 into the middle connecting position from both ends of the profile structure;

[0084] In some embodiments, before the operation of feeding the support block into the interior of the beam cavity structure, the original aluminum block is further machined, and the program is reasonably set according to the structural characteristics of the beam to form the support block.

[0085] In some embodiments, before the operation of feeding the support block into the interior of the beam cavity structure, the support block is further machined to reduce weight and make the support block lightweight.

[0086] Specifically, the first support block 40 in the present application is machined with a weight-reducing hole 304 to further lighten the beam.

[0087] In the present embodiment, as Figure 1 and Figure 2 shown, the support block is visually displayed, wherein the first support block 40 is a rectangular structure, and its length direction is consistent with the length direction of the beam during installation, and two are installed side by side in the transverse direction. In actual use, according to the width of the beam, the number of connecting holes, the structure and size of the support block, the installation condition and the number of the support block can be adaptively adjusted.

[0088] Preferably, when feeding the first support block 40 into the interior of the beam, a push mechanism with fixed stroke and meeting the size of the cavity structure can be used. The movement distance of the support block in the interior of the beam is controlled by controlling the stroke of the push mechanism. Under the action of the external force of the push mechanism with fixed stroke and limiting the first bending feature 100, the first support block 40 moves to the predetermined first connecting position 10.

[0089] Further, the shape and size of the first support block 40 can be reasonably selected according to the first bending feature 100 of the beam. Generally, the first support block 40 can be abutted at one end against the bent heel of the first bending feature 100, so that the limiting effect is more ideal.

[0090] S300: Fix the first support block 40;

[0091] Specifically, the above fixing is mainly realized by the press riveting process. At the corresponding position of the first support block 40, the profile structure has a first anchor point 200 protruding into the cavity by press riveting, so as to limit the position of the first support block 40.

[0092] The corresponding position of the first support block 40 can be at the outer peripheral corner of the first support block 40, or at the inner edge corner of the first support block 40. When it is at the inner edge corner, the inner ring of the first support block 40 has a space capable of accommodating the anchor point formed by the press riveting process. Referring to Figure 1 and Figure 2 That is, the anchor point is arranged at the inner edge corner of the first support block 40. At this time, the structure of the first support block 40 is as shown in Figure 6 The anchor point is located in the weight-reducing hole 304 on the first support block 40 and is defined at the inner edge corner of the first support block 40. Preferably, the anchor point is arranged in at least three, and here it is arranged in four. The arrangement of the first anchor point 200 can avoid the first support block 40 from moving during the subsequent process.

[0093] Specifically, the depth, size and number of the first anchor point 200 can be reasonably arranged according to the thickness of the reinforcing beam, the size of the support block and the pressure of the riveting machine.

[0094] S400: Machining connecting holes and mounting holes on the profile structure, the middle connecting hole is a through hole penetrating the profile structure and the first support block 40;

[0095] The connecting holes and the mounting holes are machined for the installation and fixation of the reinforcing beam.

[0096] In an embodiment of the present application, the middle connecting hole is the first connecting hole 300 and the first support block connecting hole 302, which can be machined at one time after the first support block 40 is fixed in place.

[0097] Specifically, the first connecting hole 300 is machined at the middle connecting position of the profile structure, the second connecting hole 301 is machined at the end connecting position, and the mounting hole 202 is machined at the corresponding position of the profile structure.

[0098] In addition, in the preferred embodiment, the step S500 further includes:

[0099] S410: Secondary stamping of the profile structure to form a second bending feature 101 at the end position of the profile structure, so as to avoid the peripheral parts as much as possible and maximize the utilization of the vehicle layout space, and the first support block 40 is located between the first bending feature 100 and the second bending feature 101, and the two bending features can limit the first support block 40. The heel of the second bending feature 101 is arranged at one end of the first support block 40, so that the first support block 40 is respectively abutted between the first bending feature 100 and the second bending feature 101, and the limiting effect reaches the most ideal state.

[0100] As Figure 1 and Figure 8As shown, after the second stamping, the first connecting part 10 is between the first bending feature 100 and the second bending feature 101, and there are two first connecting parts 10, the first connecting hole 300 is located in the first connecting part 10, from the second bending feature 101 to the end of the reinforcing beam closest to it, in turn, the mounting part 20 and the second connecting part 11, the second connecting hole 301 is arranged on the second connecting part 11, the mounting hole 202 is arranged on the mounting part 20, and the connecting hole is connected by a fixing member. In this embodiment, the fixing member is a fastening bolt, such as Figure 8 As shown.

[0101] Because two first bending features 100 are formed after the first stamping, the second stamping is preferably performed on both sides of the first bending feature 100, thereby forming two mounting parts 20.

[0102] Specifically, referring to Figure 5 , the stamping depth H1 of the second bending feature 101 is 0-20mm, and the stamping round angle R1 is 40mm. The length of the reinforcing beam is 1000mm±50mm, and the position of the second stamping is preferably set to be 180mm-340mm away from the end of the reinforcing beam. Of course, when the second stamping is performed, it is necessary to ensure that the stamping does not affect the first support block 40 in the cavity structure, so that the second bending feature 101 and the first bending feature 100 can completely accommodate the first support block 40.

[0103] As a preferred, the order of the first stamping and the second stamping and the specific stamping position can be selected according to the avoidance requirement in actual use, and this article is only an embodiment description and does not make specific limitation.

[0104] During the stamping process, process defects such as collapse are prone to occur at the first bending feature 100 and the second bending feature 101. Therefore, the cavity structure can be reinforced by setting an auxiliary support structure 600 in the cavity structure to avoid process defects such as collapse at the bending position during the stamping process. Specifically, as shown in Figures 3 to 4 The auxiliary support structure 600 is an X-shaped structure, of course, the specific setting structure of the auxiliary support structure 600 is not limited to the above X-shaped structure.

[0105] S500: Put the second support block 50 from the end of the profile structure to the end connecting position respectively;

[0106] The end connecting position is provided with a second connecting hole 301, and the second support block 50 is provided with a second support block connecting hole 303. The second support block 50 is pushed into the position corresponding to the second connecting hole 301 and the second support block connecting hole 303, which is convenient for subsequent installation and fixation of the reinforcing beam.

[0107] S600: Fix the second support block 50 to obtain the reinforcing beam.

[0108] Specifically, the above fixing is mainly realized by the riveting process. In the corresponding position of the second support block 50, the profile structure is riveted to have a second anchor point 201 protruding into the cavity to define the position of the second support block 50.

[0109] The above-mentioned corresponding position of the second support block 50 can be at the outer peripheral corner of the second support block 50, or at the inner edge corner of the second support block 50. When it is at the inner edge corner, the inner ring of the second support block 50 has a space capable of accommodating the anchor point formed by the riveting process. Referring to Figures 1 to 2 For the case where the anchor point is arranged at the outer peripheral corner, in one specific embodiment of the present application, the second support block 50 is a cylindrical structure as shown in Figure 7 Therefore, the anchor point can be arranged at the outer periphery of the second support block 50, and at this time, in order to better fix, the anchor point can be arranged as at least three. The arrangement of the second anchor point 201 can avoid the second support block 50 from moving during the subsequent process.

[0110] Therefore, the support block built-in the connecting part has been fixed firmly under the dual action of the bending feature and the anchor point, and when the reinforcing beam is installed on the automobile, the moment attenuation of the fixing part can be effectively prevented to facilitate the stable connection of the connecting part with other structures on the automobile. Specifically, the fixing part is a fastening bolt or other parts capable of realizing stable connection.

[0111] The preparation process of the automobile reinforcing beam of the present application first extrudes the aluminum alloy raw material to form an aluminum alloy profile structure having a cavity structure; then, the first support block 40 is placed from both ends of the profile structure to the middle connecting part and fixed; the connecting hole and the mounting hole are processed on the profile structure, and the middle connecting hole is a through hole penetrating the profile structure and the first support block 40; the second support block 50 is placed from both ends of the profile structure to the end connecting part and fixed to obtain the reinforcing beam. In the preparation process, the first support block 40 and the second support block 50 are respectively placed at the middle connecting part and the end connecting part, and the support block can support the corresponding connecting hole or mounting hole 202, thereby improving the strength of the connecting and fixing part of the reinforcing beam, avoiding the problem of induced deformation and moment attenuation of the connecting and fixing part of the reinforcing beam when the automobile collides, and improving the connection strength.

[0112] Example 3

[0113] The embodiment of the application provides a reinforcing beam, which is prepared by the preparation process, and comprises a reinforcing beam body 1, at least two first supporting blocks 40 which are symmetric about a transverse symmetry axis of the reinforcing beam and are fixedly arranged in a middle connecting position of the body 1, and at least two second supporting blocks 50 which are symmetric about the transverse symmetry axis of the reinforcing beam and are fixedly arranged in two end connecting positions of the body 1, as shown in the figure. Figure 2 As shown in the figure, Figure 5 The middle connecting position and the end connecting position of the reinforcing beam are respectively provided with a first connecting hole 300 and a second connecting hole 301, and the first supporting block 40 and the second supporting block 50 are respectively provided with a first supporting block connecting hole 302 and a second supporting block connecting hole 303 corresponding to the first connecting hole 300 and the second connecting hole 301. In use, the reinforcing beam can be used as a transverse beam or a longitudinal beam of a vehicle body according to actual conditions.

[0114] In addition, as shown in the figure, Figure 1 A plurality of mounting holes 202 are arranged on the body 1 of the reinforcing beam at different positions, and under the joint action of the connecting holes and the mounting holes, the reinforcing beam can be mounted at corresponding positions of the vehicle body to enhance the strength of the vehicle body.

[0115] Preferably, the first supporting block 40 and the second supporting block 50 can be fixed by anchor points. Specifically, the middle connecting position is provided with a first anchor point 200 protruding towards the first supporting block 40 to fix the first supporting block 40, and the end connecting position is provided with a second anchor point 201 protruding towards the second supporting block 50 to fix the second supporting block 50, as shown in the figure. Figures 2 to 4

[0116] The reinforcing beam provided by the embodiment has small structure space and light weight, can effectively improve the torsional performance of the vehicle body, the NVH (Noise, Vibration, Harshness) performance and the crash performance of the whole vehicle, and solves the problem of torque attenuation of the fastening point.

[0117] Embodiment 4

[0118] The embodiment of the application provides a reinforcing beam, which is prepared by the preparation process, and comprises a reinforcing beam body 1, at least two first supporting blocks 40 which are symmetric about a transverse symmetry axis of the reinforcing beam and are fixedly arranged in a middle connecting position of the body 1, and at least two second supporting blocks 50 which are symmetric about the transverse symmetry axis of the reinforcing beam and are fixedly arranged in two end connecting positions of the body 1, as shown in the figure. Figure 2 As shown in the figure, Figure 5 ​The middle connecting part and the end connecting part of the reinforcing beam are respectively provided with a first connecting hole 300 and a second connecting hole 301, and the first support block 40 and the second support block 50 are respectively provided with a first support block connecting hole 302 and a second support block connecting hole 303 corresponding to the first connecting hole 300 and the second connecting hole 301.

[0119] In addition, as Figure 1 shown, a plurality of mounting holes 202 are arranged on the body 1 of the reinforcing beam at different positions. Under the joint action of the connecting holes and the mounting holes, the reinforcing beam can be installed at the corresponding position of the vehicle body to strengthen the strength of the vehicle body.

[0120] Preferably, the first support block 40 and the second support block 50 can be fixed by anchor points. Specifically, the middle connecting part is provided with a first anchor point 200 protruding towards the first support block 40 to fix the first support block 40, and the end connecting part is provided with a second anchor point 201 protruding towards the second support block 50 to fix the second support block 50, as Figures 2 to 4 shown.

[0121] In the reinforcing beam in the application, the body 1 is provided with a first bending feature 100, and the two ends of the first bending feature 100 are respectively provided with at least one first support block 40. The first bending feature 100 can realize avoidance of the vehicle body parts during installation, so that the installation is more fitted, stable and strong.

[0122] Preferably, a second bending feature 101 can also be arranged on the body 1, and the second bending feature 101 is located on both sides of the first bending feature 100, as Figure 1 shown. One end of the first support block 40 can be in contact with the root of the first bending feature 100 to realize one-end limiting; the other end of the first support block 40 is in contact with the root of the second bending feature 101 to realize the other-end limiting, so that the two bending features realize secondary fixation of the first support block 40.

[0123] In the application, the first support block 40 is a rectangular structure, and the first support block 40 is provided with a weight-reducing hole 304.

[0124] Because the peripheral environment of the reinforcing beam on different vehicle models is not completely the same. Based on this, the first bending feature 100 located in the middle of the reinforcing beam can be set in various different shapes on the basis of ensuring the stress strength of the reinforcing beam.

[0125] Referring to Figure 3The wall thickness of the frame 400 surrounding the reinforcing beam in the application can be set to 3mm, and the wall thickness of the support column 500 inside the reinforcing beam along the longitudinal direction thereof can be set to 2mm. Of course, in some other embodiments, the reinforcing beam can also set its own thickness according to its respective actual stress condition, which will not be repeated here.

[0126] Specifically, as shown in Figure 1 and Figure 8 The first connecting part 10 and the second connecting part 11 are used for connecting the reinforcing beam with other structures. When the reinforcing beam is used, the first connecting hole 300 and the second connecting hole 301 on the first connecting part 10 and the second connecting part 11 need to be aligned with the mounting holes provided on the vehicle for the reinforcing beam. After the fastening bolts are respectively passed through the connecting holes of the reinforcing beam and the mounting holes on the vehicle, the reinforcing beam is fixedly installed on the vehicle through the fastening bolts to form a stable connection.

[0127] In some embodiments, after the mounting hole 202 is formed on the mounting part 20, the wire harness buckle or the bottom guard plate can be fixed to the mounting part 20 through the pull rivet nut, so that the wire harness or the bottom guard plate is stably connected with the reinforcing beam.

[0128] In some other embodiments, the cross-sectional thickness of the reinforcing beam can also be set to other ranges according to its actual stress condition, which will not be repeated here.

[0129] In some embodiments, the reinforcing beam further comprises a transition part (not shown in the figure), which is connected between the connecting part, the mounting part 20 and the avoiding part 30 along the longitudinal direction of the reinforcing beam.

[0130] Specifically, the trend of the transition part along the longitudinal direction of the reinforcing beam can be set according to the specific arrangement environment of the vehicle. The transition part is connected between the connecting part 10, the mounting part 20 and the avoiding part 30, which can ensure the continuity of the overall structure of the vehicle frame reinforcing beam.

[0131] When the reinforcing beam is installed on the vehicle, the reinforcing beam is located below the exhaust pipe in the direction of the vehicle pointing to the ground, and is located at the relative position of the front seat rear beam in the direction of the vehicle head pointing to the tail. In the vehicle side impact working condition, the first bending feature 100 can be bent upward or downward in the direction perpendicular to the surface of the reinforcing beam. This first bending feature 100 not only can avoid the exhaust space to make it possible to avoid the surrounding parts and realize the maximum utilization of the vehicle arrangement space. It can also increase the strength of the cross beam to make the automobile have stronger impact load bearing capacity when the collision occurs.

[0132] The reinforced beam of the application is provided with at least two first supporting blocks symmetrically arranged with respect to the transverse symmetry axis of the reinforced beam and fixedly arranged in the middle connecting position of the body, and at least two second supporting blocks symmetrically arranged with respect to the transverse symmetry axis of the reinforced beam and fixedly arranged in the two end connecting positions of the body. The middle connecting position and the two end connecting positions are respectively provided with first connecting holes and second connecting holes. The first supporting blocks and the second supporting blocks are respectively provided with first supporting block connecting holes and second supporting block connecting holes corresponding to the first connecting holes and the second connecting holes. In the process of installation and use, the first supporting blocks and the second supporting blocks not only play the role of installation and fixation, but also can strengthen the support of the first connecting holes and the second connecting holes of the reinforced beam, thereby improving the strength of the connecting and fixing positions of the reinforced beam, avoiding the problems of induced deformation and torque attenuation of the connecting and fixing positions of the reinforced beam when the automobile collides, and improving the connecting strength.

[0133] The above examples are only used to illustrate the technical solutions of the application, but not to limit the same. Although the application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent features. Such modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A process for the production of a car beam reinforcement, characterized in that, The method comprises the following steps: S100: extruding an aluminum alloy raw material to form an aluminum alloy profile structure with a cavity structure; S110: stamping the profile structure to form two first bending features (100) at the middle position of the profile structure, so that the profile structure sequentially forms a connecting mounting part, an avoiding part (30) and a connecting mounting part in the longitudinal direction, and the first bending feature (100) is located between the connecting mounting part and the avoiding part (30); S200: placing a first support block (40) to the middle connecting position from both ends of the profile structure; S300: fixing the first support block (40); S300 specifically comprises: at the outer peripheral corner or inner edge corner of the first support block (40), the profile structure is provided with a first anchor point (200) protruding into the cavity by pressure riveting, the first anchor point (200) is provided as at least three to limit the position of the first support block (40); and one end of the first support block (40) is in contact with the root of the first bending feature (100); S400: processing connecting holes and mounting holes on the profile structure, and the middle connecting hole is a through hole penetrating through the profile structure and the first support block (40); S410: secondary stamping the profile structure to form a second bending feature (101) at the end position of the profile structure, so that the first support block (40) is located between the first bending feature (100) and the second bending feature (101); and the other end of the first support block (40) is in contact with the root of the second bending feature (101), so as to fix the first support block (40) by the first bending feature (100) and the second bending feature (101) twice; S500: placing a second support block (50) to the end connecting position from both ends of the profile structure; S600: fixing the second support block (50) to obtain a reinforced beam.

2. The manufacturing process according to claim 1, characterized in that, The stamping depth H2 of the first bending feature (100) is 0-35mm, and the stamping round angle R2 is 50mm; the stamping depth H1 of the second bending feature (101) is 0-20mm, and the stamping round angle R1 is 40mm.

3. The manufacturing process of claim 1, wherein, Before the step S200, the method further comprises: processing a support block raw material and performing weight reduction treatment to obtain a first support block (40) with a weight reduction hole (304).

4. A reinforced beam characterized by, The preparation process according to any one of claims 1 to 3 comprises: a reinforcing beam body (1), at least two first support blocks (40) symmetrically arranged in the middle connecting position of the body (1) with respect to the transverse symmetry axis of the reinforcing beam, and at least two second support blocks (50) symmetrically arranged in the two end connecting positions of the body (1) with respect to the transverse symmetry axis of the reinforcing beam, the middle connecting position and the end connecting position are respectively provided with a first connecting hole (300) and a second connecting hole (301), the first support block (40) and the second support block (50) are respectively provided with a first support block connecting hole (302) and a second support block connecting hole (303) corresponding to the first connecting hole (300) and the second connecting hole (301); the middle connecting position is provided with a first anchor point (200) protruding towards the first support block (40) to fix the first support block (40); the body (1) is provided with a first bending feature (100) and a second bending feature (101), the two ends of the first bending feature (100) are respectively provided with at least one first support block (40), and the first support block (40) is located between the first bending feature (100) and the second bending feature (101).

5. The reinforced beam of claim 4, wherein, The end connecting position is provided with a second anchor point (201) protruding towards the second support block (50) to fix the second support block (50).

6. A reinforced beam according to claim 4 or 5, characterised in that, The first support block (40) is a rectangular structure, and the first support block (40) is provided with a weight-reducing hole (304).

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