Steering column supporting frame

Abstract

The utility model discloses a steering column supporting frame which comprises a pipe body part and a supporting part welded with the pipe body part. The supporting part comprises a supporting piece, a supporting plate and a connecting block; the near ends of the supporting pieces are fixedly connected with the tube body part, and the far ends of the supporting pieces are fixedly connected with the connecting blocks; the supporting plate is located below the middle of the supporting piece and connected with the supporting piece. The pipe body part, the supporting plate and the connecting block are extrusion pieces; the supporting piece is a stamping piece. The steering column supporting frame has the advantages that the steering column supporting frame is machined in a split mode, the pipe body part, the supporting plate and the connecting block which have high rigidity requirements are machined in an extrusion forming mode, the supporting piece is formed in a punching mode, and the two machining modes are combined and fixed through welding. The overall stability of the steering column supporting frame is guaranteed, and meanwhile the accuracy of the machining size is guaranteed; and the overall mass of the supporting piece is reduced compared with the prior art, and the requirement for light weight is better met.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle manufacturing, and in particular relates to a steering column support frame. Background Art

[0002] The automotive steering column is a core component of the vehicle's steering system. Its primary function is to transmit the torque applied by the driver through the steering wheel to the steering gear, thereby achieving vehicle steering control. With the rapid development of the automotive industry, the performance requirements for steering columns are also increasing, including lightweight, high stability, and high safety.

[0003] The existing steering column support frame can refer to the existing patent CN102202957A "Support frame for steering column assembly". The existing technology including this patent usually includes an extruded or stamped tube body part and a support part, and the two parts are fixedly connected by bolts. Therefore, this design has a large demand for bolts and extremely high requirements for installation accuracy. In actual use, if some bolts become loose, it will directly affect the overall stability of the steering column, causing the steering wheel to shake and make abnormal noises, seriously affecting driving comfort and safety. Another type, such as the structure disclosed in the existing patent CN220615931U, "A steering column mounting bracket structure", reduces the amount of bolt connections, but including this patent and the attached Figure 1 The prior art shown generally uses an integral extrusion as the support portion. This processing method results in a relatively large overall weight of the steering column assembly, which cannot meet the growing demand for lightweighting. In addition, because the support portion needs to be designed with a certain degree of curvature, it is difficult to simultaneously control weight and dimensional accuracy using traditional processes. In addition, the prior art, including the two patents mentioned above, makes it difficult to design a structure at the end of the support portion of the steering column support structure to guide collapse and deformation. In the event of a collision, this design flaw will result in a relatively large impact force on the tube body, which can easily cause damage to the entire steering column, seriously affecting its service life and increasing its cost of use.

[0004] Therefore, the future development of automotive steering columns needs to achieve a balance between lightweight, high stability, and high safety while maintaining performance to meet the development needs of the automotive industry. Therefore, designing a steering column support that meets these requirements is an important technical problem that those skilled in the art need to solve. Utility Model Content

[0005] The purpose of the present invention is to solve the above problems existing in the prior art and to provide a steering column support frame.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] The steering column support frame includes a tube body portion and a support portion welded thereto; the support portion includes a support member, a support plate and a connecting block; there are two support members, the proximal ends of which are fixedly connected to the tube body portion, and the distal ends are fixedly connected to the connecting block; the support plate is located below the middle portion of the support member and is connected to the support plate; the tube body portion, the support plate and the connecting block are extruded parts; and the support member is a stamped part.

[0008] Preferably, both ends of the support member are welded to the tube body portion and the connecting block respectively; and both ends of the support plate are welded to the lower surface of the support member.

[0009] Preferably, the support member is bent into shape, and the length of the lower bending surface of the support member is smaller than that of its upper bending surface; the support plate is in a "F" shape, and its top surface abuts against the lower surface of the upper bending surface, and the two are welded and fixed; the lower surface of the support plate abuts against the lower surface of the lower bending surface, and the two are welded and fixed.

[0010] Preferably, the lower surface of the support plate and the top surface thereof are connected via a first reinforcing rib.

[0011] Preferably, a connecting plate is integrally stamped on the support member; the connecting plate and the support member form an opening corresponding to the outer contour of the tube body portion; the end portion and both ends of the connecting plate are respectively welded to the tube body portion and the support member; a hook structure is formed on the connecting plate, and the hook structure faces the support plate.

[0012] Preferably, the inner edge of the connecting block is open, and the shape of the opening matches the end face of the support member; the outer end face of the connecting block is formed with a groove for guiding collapse deformation.

[0013] Preferably, a reinforcing rib group is provided inside the connecting block, and the reinforcing rib group is arranged obliquely; the groove collapses toward the reinforcing rib group.

[0014] Preferably, the cross section of the tube body portion is circular or rectangular, and a second reinforcing rib is provided inside the tube body portion.

[0015] The advantages of the technical solution of this utility model are mainly reflected in:

[0016] The utility model processes the steering column support frame in separate parts. The tube body, support plate and connecting block, which require high rigidity, are processed by extrusion molding, while the support member is stamped. The two processing methods are combined and fixed by welding, which ensures the overall stability of the steering column support frame while also guaranteeing the accuracy of the processing dimensions. The overall mass of the support member is reduced compared with the existing technology, which better meets the lightweight requirements.

[0017] The grooves and the reinforcing rib group allow the end face of the connecting block to collapse and deform preferentially after being subjected to force. At the same time, the range of collapse is limited under the action of the reinforcing rib group. Therefore, even if the connecting block is subjected to force, the stability of its overall structure will not be affected, thereby extending the service life of the steering column support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : Background technology structure diagram of the utility model;

[0019] Figure 2 : A three-dimensional diagram of a preferred embodiment of the utility model;

[0020] Figure 3 : A top view of a preferred embodiment of the utility model;

[0021] Figure 4 : An end view of a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0022] The objectives, advantages, and features of the present invention are illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of the application of the technical solutions of the present invention. Any technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

[0023] In the description of the scheme, it should be noted that the terms "center," "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inside," and "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are intended only for ease of description and simplification of the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of the scheme, with the operator as a reference, the direction closer to the operator is referred to as the proximal end, and the direction away from the operator is referred to as the distal end.

[0024] like Figure 2 As shown, the present invention discloses a steering column support frame comprising a tubular portion 1 and a support portion 2 welded thereto. The tubular portion 1 has a cross-section that is circular, rectangular, or other known shapes, and its shape is not specifically limited herein. A second reinforcing rib is disposed within the tubular portion 1. This second reinforcing rib enhances the overall strength of the tubular portion 1.

[0025] The support portion 2 includes a support member 21, a support plate 22, and a connecting block 23. In order to facilitate quick processing, in the present invention, it is preferred that the tubular body portion 1, the support plate 22, and the connecting block 23 are extruded parts; the support member 21 is a stamped part; at this time, the overall mass of the steering column support frame is reduced by at least 2KG compared to the existing one, and the mass of the support portion is reduced by at least 1KG. Therefore, the present invention processes the steering column support frame in two parts, wherein the tubular body portion, the support plate, and the connecting block, which have high rigidity requirements, are processed by extrusion molding, and the support member is stamped. The two processing methods are combined and fixed by welding, which ensures the overall stability of the steering column support frame while also ensuring the accuracy of the processing dimensions; and the overall mass of the support member is reduced compared to the existing technology, which is more in line with the lightweight requirements.

[0026] Specifically, such as Figures 2 to 3 As shown, there are two support members 21, with their proximal ends fixedly connected to the tubular body 1 and their distal ends fixedly connected to the connecting block 23. Specifically, the ends of the support members 21 are welded to the tubular body 1 and the connecting block 23, respectively; and the ends of the support plate 22 are welded to the lower surface of the support members 21. This welding provides a stable connection between the two adjacent components, improving connection stability and reliability.

[0027] Furthermore, the support member 21 is bent into a shape, wherein the bending angle of the distal end of the first support member 201 is greater than the bending angle of the second support member 202, and is closer to the distal end of the second support member 202; when in operation, it guides the first support member 201 or the second support member 202 to collapse and deform preferentially during a collision or force process, thereby reducing further damage to the tube body portion 1, reducing maintenance and replacement costs, and improving driving safety.

[0028] Furthermore, Figures 2 to 3 As shown, a connecting plate 24 is integrally stamped onto the support member 21. The connecting plate 24 and the support member 21 form an opening corresponding to the outer contour of the tubular portion 1, allowing the support portion 2 to securely fit the tubular portion, improving the reliability of the connection. The end and ends of the connecting plate 24 are welded to the tubular portion 1 and the support member 21, respectively. A hook structure 241 is formed on the connecting plate 24, facing the support plate 22.

[0029] like Figures 2 to 4As shown, the support plate 22 is located below the middle portion of the support member 21 and is connected to the support plate 22. Specifically, the lower bent surface 211 of the support member 21 is shorter than the upper bent surface 212. The support plate 22 is in an "X" shape, with its top surface abutting the lower surface of the upper bent surface 212, and the two are welded together. The lower surface of the support plate 22 abuts the lower surface of the lower bent surface 211, and the two are welded together.

[0030] Further, such as Figure 2 As shown, the lower surface and the top surface of the support plate 22 are connected by a first reinforcing rib 221. The first reinforcing rib 221 enhances the integrity and supporting capacity of the support plate 22, ensuring that the support plate 22 can effectively and reliably bear the load in the steering column support frame.

[0031] like Figure 2 or Figure 4 As shown, the inner edge of the connecting block 23 is open, and the shape of the opening matches the end face of the support member 21; the outer end face of the connecting block 23 is formed with a groove 230 to guide collapse and deformation. Furthermore, a reinforcing rib group 231 is provided inside the connecting block 23, and the reinforcing rib group 231 is arranged at an angle; the groove 230 collapses toward the reinforcing rib group 231. The groove and the reinforcing rib group 231 allow the end face of the connecting block 23 to collapse and deform preferentially after being subjected to force. At the same time, the action of the reinforcing rib group 231 limits the range of collapse. Therefore, even if the connecting block 23 is subjected to force, the stability of its overall structure will not be affected, thereby extending the service life of the steering column support frame.

[0032] There are many implementation methods for the present utility model, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present utility model.

Claims

1. A steering column support frame, comprising a tubular body portion (1) and a support portion (2) welded thereto; characterized in that: The support portion (2) comprises a support member (21), a support plate (22) and a connecting block (23); there are two support members (21), the proximal ends of which are fixedly connected to the tubular portion (1), and the distal ends of which are fixedly connected to the connecting block (23); the support plate (22) is located below the middle of the support member (21) and is connected to the support plate (22); the tubular portion (1), the support plate (22) and the connecting block (23) are extruded parts; and the support member (21) is a stamped part.

2. The steering column support according to claim 1, characterized in that: The two ends of the support member (21) are welded to the tubular body portion (1) and the connecting block (23) respectively; and the two ends of the support plate (22) are welded to the lower surface of the support member (21).

3. The steering column support according to claim 2, characterized in that: The support member (21) is bent and formed, and the length of the lower bending surface (211) of the support member (21) is shorter than the upper bending surface (212) thereof; the support plate (22) is in a "F" shape, and its top surface abuts against the lower surface of the upper bending surface (212), and the two are welded and fixed; the lower surface of the support plate (22) abuts against the lower surface of the lower bending surface (211), and the two are welded and fixed.

4. The steering column support according to claim 3, characterized in that: The lower surface of the support plate (22) and its top surface are connected via a first reinforcing rib (221).

5. The steering column support according to claim 4, characterized in that: A connecting plate (24) is integrally stamped on the support member (21); the connecting plate (24) and the support member (21) form an opening corresponding to the outer contour of the tube portion (1); the end and both ends of the connecting plate (24) are welded to the tube portion (1) and the support member (21) respectively; a hook structure (241) is formed on the connecting plate (24), and the hook structure (241) faces the support plate (22).

6. The steering column support according to claim 5, characterized in that: The inner edge of the connecting block (23) is open, and the shape of the opening matches the end face of the support member (21); the outer end face of the connecting block (23) is formed with a groove (230) for guiding collapse deformation.

7. The steering column support according to claim 6, characterized in that: A reinforcing rib group (231) is provided inside the connecting block (23), and the reinforcing rib group (231) is arranged obliquely; the groove (230) collapses toward the reinforcing rib group (231).

8. The steering column support according to claim 7, characterized in that: The cross section of the tubular body portion (1) is circular or rectangular, and a second reinforcing rib is provided inside the tubular body portion (1).

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