Injection molding instrument board cross beam and design method

Abstract

The invention relates to the technical field of instrument panel cross beams, and discloses an injection molding instrument panel cross beam and a design method.The injection molding instrument panel cross beam comprises end plate templates located at the two ends and a middle supporting module located in the middle, and the two ends of the middle supporting module are connected with one end of a pipe column mounting support module and one end of a main beam module correspondingly; the other ends of the pipe column mounting bracket module and the main beam module are fixedly connected with the corresponding end plate modules; mounting points of the end plate modules are bilaterally symmetrical about the central plane of the vehicle body; the instrument panel cross beam is designed into the tubular column mounting bracket module, the main beam module, the middle supporting module and the end plate module, and the platform design of the instrument panel cross beam can be realized by only modifying the structure and the mold insert of individual modules, so that the requirements of different sitting postures such as high, middle and low sitting postures on the same platform can be met; the structure and the mold of the instrument panel cross beam are used to the greatest extent, and the purposes of shortening the development period and saving the mold development cost are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of instrument panel cross beams, in particular to an injection-molded instrument panel cross beam and a design method thereof. Background Art

[0002] The instrument panel and the crossbeam assembly supporting the instrument panel must have sufficient rigidity to ensure that the various instruments and parts supported by it can work normally under high-speed driving and vibration conditions. In addition, in order to reduce the impact of external forces on the driver and co-driver in the event of an accident, the instrument panel is also required to have good energy absorption. In addition, there are high requirements for the comprehensive mechanical properties of the crossbeam assembly of the instrument panel.

[0003] At present, the dashboard crossbeams in the industry are mainly made of steel welding, aluminum welding, magnesium alloy die-casting and injection molding. Among them, the welding crossbeam process chain is too long, the product consistency is poor, and the steel dashboard crossbeam is heavy. The cost of magnesium alloy die-casting is too high, and only one mold can be used for one car, which cannot be platformized. Injection-molded dashboard crossbeams are mainly steel plastic and aluminum plastic, which are mainly insert injection molding. It is impossible to realize the manufacturing and processing of multiple models based on the same set of main molds, and it is impossible to achieve platformization. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an injection-molded instrument panel crossbeam and a design method, in which the instrument panel crossbeam is designed as a column mounting bracket module and a main beam module, a middle support module and an end plate module. By only modifying the structure and mold inserts of individual modules, a platform design of the instrument panel crossbeam can be achieved, which can meet the needs of different sitting postures such as high, medium and low on the same platform, and the structure and mold of the instrument panel crossbeam can be used to the greatest extent, thereby shortening the development cycle and saving mold development costs.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In the first aspect, an injection molded instrument panel cross beam includes end plate templates located at both ends and a middle support module located in the middle, wherein the two ends of the middle support module are respectively connected to one end of a column mounting bracket module and a main beam module, and the other ends of the column mounting bracket module and the main beam module are fixedly connected to the corresponding end plate modules; the installation points of the end plate modules are symmetrical about the center plane of the vehicle body.

[0007] As a further implementation method, the end plate template includes a left end plate module located at the left end of the dashboard beam and a right end plate module located at the right end of the dashboard beam. The installation points of the two sets of end plate modules are determined according to the Y-direction dimension of the vehicle and the X-direction position of the front door opening.

[0008] As a further implementation method, the column mounting bracket module includes a left rudder column mounting bracket module connected between the left end plate module and the middle support module, and also includes a right rudder column mounting bracket module connected between the right end plate module and the middle support module; the left rudder column mounting bracket module and the right rudder column mounting bracket module are symmetrical in structure.

[0009] As a further implementation method, the main beam module includes a structurally symmetrical left main beam module and a right main beam module, wherein the left main beam module and the right rudder column mounting bracket module are used in a group; the right main beam module and the left rudder column mounting bracket module are used in a group.

[0010] As a further implementation method, the left rudder column mounting bracket module and the right rudder column mounting bracket module both include a first Y-direction main beam and a steering column mounting frame installed on the first Y-direction main beam, and the middle support module includes a second Y-direction main beam. The first Y-direction main beam includes three types, which respectively make the main body of the first Y-direction main beam and the second Y-direction main beam be in the same line, higher than the second Y-direction main beam, and lower than the second Y-direction main beam.

[0011] As a further implementation method, the middle support module also includes a central control connecting frame connected to the bottom of the second Y-direction main beam, an air conditioning installation point is provided on the central control connecting frame, and a body floor installation point is provided at the bottom of the central control connecting frame.

[0012] In a second aspect, a method for designing an injection molded instrument panel cross beam is characterized by comprising the following steps:

[0013] According to the Y-dimension of the whole vehicle and the X-position of the front door opening, the installation point of the dashboard cross beam on it is agreed with the body side, and the structure of the left end plate module and the right end plate module is determined; according to the air conditioning layout position planned in the platform, the structure of the middle support module is determined, and the upper second Y-direction main beam of the middle support module must take into account the Z-direction position of the left end plate module and the right end plate module; the interface structure of the left end plate module and the right end plate module is determined to match the column mounting bracket module, and the main beam module structure is determined according to the end of the second Y-direction main beam and the installation point of the end plate module to obtain an injection molded dashboard cross beam as described above.

[0014] As a further implementation method, the column mounting bracket module includes a left rudder column mounting bracket module connected between the left end plate module and the middle support module, and a right rudder column mounting bracket module connected between the right end plate module and the middle support module; the left rudder column mounting bracket module and the right rudder column mounting bracket module are structurally symmetrical; the main beam module structure includes a left main beam module and a right main beam module, and the left main beam module and the right rudder column mounting bracket module are used in groups; the right main beam module and the left rudder column mounting bracket module are used in groups.

[0015] As a further implementation method, the column mounting bracket module includes a first Y-direction main beam. The first Y-direction main beam has a universal design at one end close to the end plate module, and has three types of structural differences at one end close to the second Y-direction main beam according to different sitting heights to meet the height requirements of the installed steering column.

[0016] As a further implementation method, the installation points of the corresponding instrument panels and electrical device modules are solidified so that they can be used by all models. For those that cannot be used, removable brackets are used for differentiated design.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The present invention utilizes the replaceable feature of injection mold inserts to design the instrument panel cross beam into a column mounting bracket module, a main beam module, a middle support module and an end plate module. By only modifying the structure and mold inserts of individual modules, a platform design of the instrument panel cross beam can be achieved, which can meet the needs of different sitting postures such as high, medium and low on the same platform, and the structure and mold of the instrument panel cross beam can be used to the greatest extent, thereby shortening the development cycle and saving mold development costs.

[0019] 2. The column mounting bracket module and the main beam module of the present invention are used in groups to meet the use requirements of left and right rudders. The first Y-axis main beam of the column mounting bracket module is set to three structural types, which can match sedan models, CROSS models and SUV models to achieve the distinction between high and low sitting postures. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0021] Figure 1 is a schematic diagram of the disassembly of the left rudder instrument panel cross beam module in an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of a right rudder column mounting bracket module in an embodiment of the present invention;

[0023] Figure 3 is a schematic diagram of a left main beam module in an embodiment of the present invention;

[0024] Figure 4 is a schematic diagram of a cross beam of a left-hand steering instrument panel in a middle sitting position according to an embodiment of the present invention;

[0025] Figure 5 Schematic diagram of a low-sitting left-hand steering instrument panel crossbeam in an embodiment of the present invention;

[0026] Figure 6 is a schematic diagram of a left-hand steering instrument panel crossbeam in a sitting position according to an embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the cross beam of the right rudder instrument panel in an embodiment of the present invention.

[0028] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0029] Among them: 1. Left end plate module; 2. Left rudder column mounting bracket module; 3. Middle support module; 4. Right main beam module; 5. Right end plate module; 6. Right rudder column mounting bracket module; 7. Left main beam module; 8. Middle sitting position left rudder instrument panel cross beam; 9. Low sitting position left rudder instrument panel cross beam; 10. High sitting position left rudder instrument panel cross beam;

[0030] 11. The first body side mounting point; 21. The steering column mounting point; 22. The first Y-axis main beam; 31. The air conditioning mounting point; 32. The body floor mounting point; 33. The second Y-axis main beam; 34. The center console connecting frame; 51. The second body side mounting point; 81. The middle seat steering column position; 91. The low seat steering column position; 101. The high seat steering column position; 12. The right rudder instrument panel cross beam. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0032] Embodiment 1

[0033] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 7 As shown, an injection molded instrument panel cross beam includes end plate templates located at both ends and a middle support module 3 located in the middle, wherein the two ends of the middle support module 3 are respectively connected to one end of a column mounting bracket module and a main beam module, and the other ends of the column mounting bracket module and the main beam module are fixedly connected to the end plate modules on the corresponding sides; the mounting points of the end plate modules are symmetrical about the center plane of the vehicle body.

[0034] like Figure 1 As shown, the end plate template includes a left end plate module 1 located at the left end of the instrument panel cross beam and a right end plate module 5 located at the right end of the instrument panel cross beam. The column mounting bracket module includes a left rudder column mounting bracket module 2 connected between the left end plate module 1 and the middle support module 3, and also includes a right rudder column mounting bracket module 6 connected between the right end plate module 5 and the middle support module 3; the structures of the left rudder column mounting bracket module 2 and the right rudder column mounting bracket module 6 are symmetrical. The main beam module includes a left main beam module 7 and a right main beam module 4 with symmetrical structures.

[0035] The left end plate module 1 and the right end plate module 5 serve as the connection structure between the two ends of the instrument panel cross beam and the vehicle body, and are also the installation and positioning reference of the instrument panel cross beam under the vehicle.

[0036] The left steering column mounting bracket module 2 and the right steering column mounting bracket module 6 are responsible for providing installation for the steering column to ensure the required mounting point rigidity requirements. They are also the modules in the entire dashboard crossbeam that need to be adjusted according to the different sitting postures of the driver and the different column positions.

[0037] The middle support module 3 is mainly responsible for installing the air conditioner under the current platform. At the same time, the lower part is also connected to the vehicle body floor to achieve the required stiffness and strength of the dashboard beam in the Y and Z directions of the whole vehicle.

[0038] The right main beam module 4 and the left main beam module 7 realize the connection between the support module 3 and the right end plate module 5 in the left rudder instrument panel cross beam, so that the instrument panel cross beam becomes a whole.

[0039] It can be understood that the left main beam module 7 and the right rudder column mounting bracket module 6 are used in a group; the right main beam module 4 and the left rudder column mounting bracket module 2 are used in a group. In the left rudder mode, that is, when the left rudder column mounting bracket module 2 is installed between the left end plate module 1 and the middle support module 3, the right main beam module 4 should be connected between the right end plate module 5 and the middle support module 3; in the right rudder mode, when the left main beam module 7 is installed between the left end plate module 1 and the middle support module 3, the right rudder column mounting bracket module 6 should be connected between the right end plate module 5 and the middle support module 3.

[0040] like Figure 1 and Figure 4 As shown, the left steering column mounting bracket module 2 and the right steering column mounting bracket module 6 both include a first Y-direction main beam 22 and a steering column mounting bracket mounted on the first Y-direction main beam 22, and the steering column mounting bracket is provided with a steering column mounting point 21. The middle support module 3 includes a second Y-direction main beam 33, and the lower part of the second Y-direction main beam 33 is connected to a central control connecting frame 34, and the central control connecting frame 34 is H-shaped.

[0041] According to different sitting postures, the first Y-direction main beam can be set to three structural types. Specifically, the first Y-direction main beam includes three types, which respectively make the main body of the first Y-direction main beam and the second Y-direction main beam in the same straight line, higher than the second Y-direction main beam 33, and lower than the second Y-direction main beam 33, such as Figure 4-Figure 6 shown.

[0042] The upper part of the central control connecting frame 34 is provided with an air conditioner mounting point 31 for mounting the air conditioner. The bottom of the central control connecting frame is provided with a vehicle body floor mounting point 32 for fixed connection with the vehicle body floor.

[0043] The left main beam module 7 and the right main beam module 4 are both main beam structures, and are in the same straight line with the second Y-direction main beam 33. The left end plate module 1 and the right end plate module 5 are provided with a first body side mounting point 11 and a second body side mounting point 51, which are convenient for installing the end plate modules. Figure 1 As shown, the split structure of each module in left-hand rudder mode.

[0044] In the construction of this platform, sedan models, CROSS models and SUV models are planned, and the corresponding driver's sitting posture also corresponds to three positions, mainly in the Z-direction of the vehicle, the sedan models, CROSS models and SUV models are respectively divided into three sitting postures of low, medium and high heights. Figure 4-Figure 6 As shown, in order to meet the driver's operating comfort of the steering wheel and steering column, three positions of the steering column and steering wheel are designed corresponding to different sitting postures.

[0045] At the same time, in order to be used in the vehicle body firewall and the front floor platform, the position of the air conditioner remains fixed. The change in the Y-direction dimension of the vehicle body also limits the range, ensuring the uniformity of the internal space, and correspondingly ensuring that the Y-direction dimension of the instrument panel beam is fixed. Based on the left-hand drive model, in the planning of the right-hand drive model in this platform, the steering column is symmetrical with the left-hand drive, that is, the left-hand drive column mounting bracket module 2 and the right-hand drive column mounting bracket module 6 are symmetrical in structure, and the position of the air conditioner remains unchanged.

[0046] like Figure 4 As shown, in the left-hand steering mode, the first Y-direction main beam 22 of the left-hand steering column mounting bracket module 2 is a structure with the same width at all places, and its two ends are connected to the left end plate module 1 and the second Y-direction main beam 33 through corresponding mounting points. At this time, the main body of the first Y-direction main beam 22 and the second Y-direction main beam 33 have the same height, and correspondingly form a mid-sitting left-hand steering instrument panel crossbeam 8 and a mid-sitting steering column position 81, which is a mid-sitting left-hand steering mode, corresponding to the CROSS model.

[0047] like Figure 5 As shown, in the left-hand drive mode, the right end width of the first Y-direction main beam 22 of the left-hand drive column mounting bracket module 2 gradually extends upward and increases, and its two ends are connected to the left end plate module 1 and the second Y-direction main beam 33 through corresponding mounting points. At this time, the main body of the first Y-direction main beam 22 is lower than the second Y-direction main beam 33, correspondingly forming a low-position left-hand drive instrument panel crossbeam 9 and a low-position steering column position 91, which is a low-position left-hand drive mode, corresponding to a sedan model.

[0048] like Figure 6As shown, in the left-hand steering mode, the right end width of the first Y-direction main beam 22 of the left-hand steering column mounting bracket module 2 gradually extends downward and increases, and its two ends are connected to the left end plate module 1 and the second Y-direction main beam 33 through corresponding mounting points. At this time, the main body of the first Y-direction main beam 22 is higher than the second Y-direction main beam 33, correspondingly forming a high-position left-hand steering instrument panel crossbeam 10 and a high-position steering column position 101, which is a high-position left-hand steering mode, corresponding to SUV models.

[0049] like Figure 7 As shown, in the right rudder mode, the right rudder column mounting bracket module 6 is used in conjunction with the left main beam module 7. The first Y-direction main beam of the right rudder column mounting bracket module 6 also includes three types, corresponding to the left rudder column mounting bracket module 2. Figure 7 Only the situation in which the main body of the first Y-direction main beam 22 and the second Y-direction main beam 33 are at the same height in the right-hand drive mode is shown, corresponding to the right-hand drive CROSS model.

[0050] This embodiment sets the dashboard cross beam as a modular structure, combines it with the planning of the whole vehicle platform, changes the layout positions of peripheral parts under various human-machine arrangements of high, medium and low sitting postures, splits the dashboard cross beam into multiple modules as needed, matches different peripheral parts, and installs it with the vehicle body, etc., and needs to have corresponding rigidity requirements, ultimately meeting the NVH, collision safety and other performance requirements that the dashboard cross beam needs to achieve in the whole vehicle.

[0051] Taking advantage of the replaceable inserts of injection molds, the dashboard crossbeam is designed into several modules. By only modifying the structure and mold inserts of individual modules, the platform design of the dashboard crossbeam can be realized, which can meet the different sitting postures of high, medium and low on the same platform, and the structure and mold of the dashboard crossbeam can be used to the greatest extent, so as to shorten the development cycle and save mold development costs. Combining the advantages of replaceable inserts of injection molds, the modular design of the structure is carried out to realize the maximum commonality of dashboard crossbeams for different sitting postures on the same platform, and even for left-hand and right-hand drive models, saving development cycles and module development costs.

[0052] It can be understood that the X direction of the present embodiment represents the front-rear direction of the vehicle, the Y direction represents the left-right direction of the vehicle, and the Z direction represents the up-down direction of the vehicle.

[0053] In a second aspect, a method for designing an injection molded instrument panel cross beam comprises the following steps:

[0054] In combination with platform planning and taking into account the differences between the left and right rudders, the dashboard beam is divided into five modules, and the functions and relationships of the five modules are set.

[0055] First, according to the Y-dimension of the whole vehicle and the X-position of the front door opening, the installation point of the dashboard cross beam is agreed upon with the body side as one of the hard points of the interface between the body and the dashboard cross beam in the platform. After the installation point and installation surface of the dashboard cross beam are solidified, the preliminary structure of the left end panel module 1 and the right end panel module 5 can be designed. The installation points of the left end panel module 1 and the right end panel module 5 and the body are symmetrical about the center plane of the body.

[0056] Then, according to the air conditioner layout position planned in the platform, the structure of the support module 3 is designed. During the design process, the second Y-direction main beam 33 structure at the upper part needs to take into account the Z-direction position of the left end plate module 1 and the right end plate module 5. At the same time, the Z-direction position of the main beam cannot be higher than the upper surface of the air outlet of the upper part of the air conditioner to avoid interference with the instrument panel cross beam when the instrument panel and the air conditioner are connected in the later stage. At the same time, the body bottom plate mounting point 32 is set at the lower part, and the connection point with the body floor is solidified as one of the hard points of the interface between the body and the instrument panel cross beam in the platform.

[0057] After completing the design of the left end plate module 1 and the middle support module 3, match the steering column position planned by the platform, design the structure of the left rudder column mounting bracket module 2, and need to design the left rudder column mounting bracket modules 2 corresponding to the three steering column positions, such as Figure 4-Figure 6 As shown. The left end plate module 1 and the middle support module 3 need to design a fixed interface structure, which can simultaneously match the left and right end structures of the left steering column mounting bracket module 2 at three positions, and the feasibility of replacing the mold insert needs to be considered. The interface form of the left steering column mounting bracket module 2 and the steering column is unified, and the two side structures of the left steering column mounting bracket module 2 at three positions are different, and they are matched with the fixed left end plate module 1 and the middle support module 3 respectively.

[0058] Finally, the design of the right main beam module 4 is completed based on the existing middle support module 3 and right end plate module 5. The left and right ends of the right main beam module 4 are matched with the middle support module 3 and the right end plate module 5 respectively, and the matching structure between the modules should take into account the feasibility of replacing the mold inserts.

[0059] It should be clear that when the left-hand rudder instrument panel crossbeam is designed according to each module, the structure of the right-hand rudder instrument panel crossbeam 8, the low-sitting left-hand rudder instrument panel crossbeam 9 and the high-sitting left-hand rudder instrument panel crossbeam 10 are finally realized. Since the steering column is symmetrical with the left-hand rudder, and the position of the air conditioner remains unchanged, the left and right rudders are shared according to the left end plate module 1, the right end plate module 5 and the middle support module 3, and the right-hand rudder instrument panel crossbeam 12 is realized by replacing the right main beam module 4 with the right-hand rudder column mounting bracket module 6, and replacing the left-hand rudder column mounting bracket module 2 with the left main beam module 7, and the module design of different sitting positions of the right-hand rudder, high, medium and low is equivalent to the left-hand rudder solution.

[0060] The module design of the above beams needs to consider solidifying the installation points of some instrument panels and electrical device modules, which can be used by all models. If they cannot be used, a flexible bracket can be used for differentiated design.

[0061] At this point, in this platform, according to the above design method, it is possible to complete a platform-based injection-molded dashboard cross beam by replacing the inserts in the mold. Only one set of molds is needed on the same platform to meet the needs of different models, thereby maximizing the use of the structure of the same platform models and shortening the mold development cycle. Ultimately, the development cycle of the dashboard cross beam and the development costs such as mold tooling can be shortened.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An injection molded instrument panel cross beam, characterized in that: It includes end plate templates located at both ends and a middle support module located in the middle, wherein the two ends of the middle support module are respectively connected to one end of the column mounting bracket module and the main beam module, and the other ends of the column mounting bracket module and the main beam module are fixedly connected to the corresponding end plate modules; the installation point of the end plate module is symmetrical about the center plane of the vehicle body.

2. The injection molded instrument panel cross beam according to claim 1, characterized in that: The end plate template includes a left end plate module located at the left end of the dashboard beam and a right end plate module located at the right end of the dashboard beam. The installation points of the two sets of end plate modules are determined according to the Y-direction size of the vehicle and the X-direction position of the front door opening.

3. The injection molded instrument panel cross beam according to claim 2, characterized in that: The column mounting bracket module includes a left rudder column mounting bracket module connected between the left end plate module and the middle support module, and also includes a right rudder column mounting bracket module connected between the right end plate module and the middle support module; the left rudder column mounting bracket module and the right rudder column mounting bracket module are symmetrical in structure.

4. The injection molded instrument panel cross beam according to claim 3, characterized in that: The main beam module comprises a left main beam module and a right main beam module which are symmetrical in structure, wherein the left main beam module and the right rudder column mounting bracket module are used in a group; the right main beam module and the left rudder column mounting bracket module are used in a group.

5. The injection molded instrument panel cross beam according to claim 3, characterized in that: The left rudder column mounting bracket module and the right rudder column mounting bracket module both include a first Y-direction main beam and a steering column mounting frame installed on the first Y-direction main beam. The middle support module includes a second Y-direction main beam. The first Y-direction main beam includes three types, which respectively make the main body of the first Y-direction main beam and the second Y-direction main beam in the same straight line, higher than the second Y-direction main beam, and lower than the second Y-direction main beam.

6. The injection molded instrument panel cross beam according to claim 5, characterized in that: The middle support module also includes a central control connecting frame connected to the lower part of the second Y-direction main beam, the central control connecting frame is provided with an air conditioning installation point, and the bottom of the central control connecting frame is provided with a vehicle body floor installation point.

7. A method for designing an injection molded instrument panel crossbeam, characterized in that: The steps include: According to the Y-dimension of the whole vehicle and the X-position of the front door opening, the installation point of the dashboard cross beam on it is agreed with the body side, and the structure of the left end plate module and the right end plate module is determined; according to the air conditioning layout position planned by the platform, the structure of the middle support module is determined, and the upper second Y-direction main beam of the middle support module must take into account the Z-direction position of the left end plate module and the right end plate module; the interface structure of the left end plate module and the right end plate module is determined to match the column mounting bracket module, and the main beam module structure is determined according to the end of the second Y-direction main beam and the installation point of the end plate module, so as to obtain the injection molded dashboard cross beam as claimed in claim 1.

8. The method for designing an injection molded instrument panel cross beam according to claim 7, characterized in that: The column mounting bracket module includes a left rudder column mounting bracket module connected between the left end plate module and the middle support module, and a right rudder column mounting bracket module connected between the right end plate module and the middle support module; the left rudder column mounting bracket module and the right rudder column mounting bracket module are symmetrical in structure; the main beam module structure includes a left main beam module and a right main beam module, and the left main beam module and the right rudder column mounting bracket module are used in groups; the right main beam module and the left rudder column mounting bracket module are used in groups.

9. A method for designing an injection molded instrument panel cross beam according to claim 8, characterized in that: The column mounting bracket module includes a first Y-axis main beam. The first Y-axis main beam has a universal design at one end close to the end plate module, and has three types of structural differences at one end close to the second Y-axis main beam according to different sitting heights to meet the height requirements of the installed steering column.

10. The method for designing an injection molded instrument panel cross beam according to claim 9, characterized in that: The installation points of the corresponding instrument panels and electrical device modules are solidified so that they can be used in various vehicle models. For those that cannot be used, flexible brackets are used for differentiated design.

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