CCB profile support and testing device thereof
By adding connecting pieces to the CCB profile bracket for surface-to-surface welding and using a testing device to detect the strength of the beam, the problem of easy breakage at the weld was solved and the connection stability and safety of the bracket were improved.
Patent Information
- Application Number
- CN202422786439.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Existing vehicle CCB profile brackets are prone to breakage at the welding points, affecting driving safety, and lack effective testing equipment for strength testing.
A CCB profile bracket is designed. A connecting piece is added between the mounting frame and the crossbeam for surface-to-surface welding. The bracket is then subjected to strength testing using a test device, including a base plate, a placement fixture, and a press head, to test the deformation and fracture of the crossbeam under simulated collision conditions.
The connection stability between the mounting bracket and the crossbeam is enhanced, the damage to the crossbeam is reduced, the service life is extended, and the safety of the CCB profile bracket under collision conditions is ensured through the test device.
Smart Images
Figure CN223340448U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mechanical manufacturing, and in particular relates to a CCB profile bracket and a testing device thereof. Background Art
[0002] A vehicle CCB bracket is a supporting structure for human-machine interface control devices and decorative components, typically hidden beneath the dashboard. It primarily secures the dashboard and its accessories, reinforcing the entire cab while also fulfilling the crucial responsibility of installation and safety support.
[0003] Vehicle CCB profile brackets primarily consist of a mounting frame and a crossbeam. To meet lightweight requirements, these are typically made of steel or aluminum alloy, with the ends of the crossbeam welded to the ends of the mounting frame—an end-to-end process. However, welding reduces the strength of the crossbeam and mounting frame, making them susceptible to fracture at the weld seam in the event of a vehicle collision, compromising driving safety.
[0004] Therefore, designing a new type of CCB profile bracket and a dedicated testing device that can effectively test the CCB profile bracket is an important technical problem that those skilled in the art need to solve. Utility Model Content
[0005] The purpose of the present utility model is to solve the above problems existing in the prior art and to provide a CCB profile bracket and a testing device thereof.
[0006] The purpose of this utility model is achieved through the following technical solutions:
[0007] The CCB profile bracket includes a mounting frame and a crossbeam; the end of the crossbeam is located in the mounting frame, and the outer end surface of the mounting frame is welded to the crossbeam; a connecting piece extends from the mounting frame toward the crossbeam; and the connecting piece is welded to the crossbeam.
[0008] Preferably, there is at least one connecting piece, which is located on the upper surface of the crossbeam and welded to the edge of the crossbeam.
[0009] Preferably, there are two connecting plates, which are respectively located on the upper and lower surfaces of the crossbeam, and both connecting plates are welded to the edges of the crossbeam.
[0010] Preferably, a group of connecting bridges are provided in the mounting frame, and the strength of the mounting frame is enhanced by the connecting bridges.
[0011] Preferably, the main body of the mounting frame is L-shaped, the bottom of which is arranged parallel to the connecting piece, and a group of bolt holes are formed on the bottom; the end of the mounting frame is integrally arranged with the connecting piece; and a reinforcing rib connects the bottom and the end.
[0012] A CCB profile bracket testing device is used to test the strength of any of the above-mentioned CCB profile brackets; it includes a base plate, a placement fixture and a pressure head; the placement fixture is fixed to the base plate by bolts; the pressure head is located directly above the base plate and to the side above the placement fixture.
[0013] Preferably, the base of the placement fixture is detachably arranged on the bottom plate, and a limit block is provided on the upper surface of the bottom plate, and force plates are provided on both sides of the limit block; the force plate is a bent plate, and a placement platform for placing the CCB profile bracket is provided on the top.
[0014] Preferably, a U-shaped baffle is detachably provided on the force-bearing plate; the end of the baffle corresponds to the end face of the mounting frame, and the two are spaced apart; the bending angle of the force-bearing plate is not less than 90°, and the bending point is located below the baffle.
[0015] Preferably, the bottom of the mounting frame is connected to the placement platform by bolts, and the side surface of the placement platform is located at the edge of the reinforcing rib.
[0016] Preferably, the pressure head is located directly above the crossbeam and moves vertically downward at a constant speed of 3±2 mm / min while applying a force to the crossbeam until the crossbeam is deformed.
[0017] The advantages of the technical solution of this utility model are mainly reflected in:
[0018] The connecting piece increases the contact area between the mounting frame and the crossbeam, thereby enhancing the connection reliability between the two and sharing the force applied to the crossbeam after the crossbeam is stressed, thereby reducing the degree of damage to the crossbeam and extending the service life of the CCB profile bracket. The connecting piece is then welded to the end face of the crossbeam and the crossbeam to the mounting frame, that is, the existing end-to-end welding is changed to face-to-face welding, thereby enhancing the connection stability.
[0019] The connecting piece is connected to the crossbeam by welding, and the welding direction is consistent with the axis direction of the crossbeam. Even in the process of positive force collision, the upper surface of the crossbeam will not be affected by welding to reduce its own strength, nor will it be subjected to weld tension during the collision. Therefore, the crossbeam is not prone to breakage, which ensures the connection stability of the CCB profile bracket and improves the service life of the crossbeam.
[0020] The CCB profile bracket is fixed on the placement table of the CCB profile bracket test device, and a force is applied to the crossbeam using a pressure head to test the strength and structural stability of the CCB profile bracket after an offset collision of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 : A three-dimensional diagram of a preferred embodiment of the CCB profile bracket of the utility model;
[0022] Figure 2 : A front view of a preferred embodiment of the CCB profile bracket of the utility model;
[0023] Figure 3 : A three-dimensional diagram of a preferred embodiment of the CCB profile bracket testing device of the present utility model;
[0024] Figure 4 : A front view of a preferred embodiment of the CCB profile bracket testing device of the present utility model. DETAILED DESCRIPTION
[0025] 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.
[0026] 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.
[0027] The utility model discloses a CCB profile bracket and its testing device. The CCB profile bracket includes: Figure 1The mounting frame 1 and crossbeam 2 are shown. Specifically, the main body of the mounting frame 1 is L-shaped, with its bottom 12 arranged parallel to the connecting piece 11, and a group of bolt holes 120 formed on the bottom 12. The mounting frame 1 has a connecting piece 11 extending toward the crossbeam 2; the end 13 of the mounting frame 1 is integrally formed with the connecting piece 11; and a reinforcing rib 102 connects the bottom 12 and the end 13. The connecting piece increases the contact area between the mounting frame 1 and the crossbeam 2, thereby enhancing the reliability of the connection between the two, while also sharing the force applied to the crossbeam 2 after being stressed, thereby reducing the degree of damage to the crossbeam and extending the service life of the CCB profile bracket.
[0028] Furthermore, the end of the crossbeam 2 is located within the mounting frame 1, that is, the end of the crossbeam 2 partially penetrates the mounting frame 1, making the connection between the crossbeam 2 and the mounting frame 1 more reliable and having higher connection strength. The outer end surface of the mounting frame 1 is welded to the crossbeam 2; the connecting piece 11 is welded to the crossbeam 2.
[0029] There is at least one connecting piece 11, which is located on the upper surface of the beam 2 and welded to the edge of the beam 2. Furthermore, there are two connecting pieces 11, which are respectively located on the upper and lower surfaces of the beam 2, and both connecting pieces 11 are welded to the edge of the beam 2. The end face welding of the mounting frame 1 and the beam 2 in the traditional technology is changed to the welding of the beam edge and the connecting piece disclosed in this utility model. Since the setting direction of the weld is parallel to the axial direction of the beam 2, the upper surface of the beam 2 will not be affected by the welding to reduce its own strength during use, nor will it be subjected to the tension of the weld during collision. Therefore, the beam 2 is not prone to breakage. That is, the utility model improves the service life of the beam while ensuring the connection stability of the CCB profile bracket.
[0030] In addition, in the present invention, a group of connecting bridges 101 are preferably provided in the mounting frame 1 , and the strength of the mounting frame 1 is enhanced by the connecting bridges 101 .
[0031] The CCB profile bracket test device is used to test the strength of any of the above-mentioned CCB profile brackets. Specifically, as shown in the figure, the CCB profile bracket test device includes a base plate 3, a placement fixture 4 and a pressure head 5. The placement fixture 4 is fixed to the base plate 3 by bolts; the pressure head 5 is located directly above the base plate 3 and the beam 2 and above the side of the placement fixture 4, and moves vertically downward at a constant speed of 3±2mm / min, while applying a downward force to the beam 2 until the pressure head 5 causes the beam 2 to deform or break, and records the reaction force received by the pressure head 5 when the beam 2 is deformed or broken. The CCB profile bracket test device is used to detect the damage to the CCB profile bracket during an offset collision, and a safety test is performed before the CCB profile bracket enters the market to improve safety during actual use.
[0032] Furthermore, the base 41 of the placement fixture 4 is detachably mounted on the bottom plate 3, and a limit block 411 is provided on the upper surface of the bottom plate 41. A force-bearing plate 42 is provided on both sides of the limit block 411. The force-bearing plate 42 is a bent plate, and a placement platform 43 is provided on its top for placing the CCB profile bracket. The bottom 12 of the mounting frame 1 is bolted to the placement platform 43, and the side of the placement platform 43 is located at the edge of the reinforcing rib 102. Furthermore, the bending angle of the force-bearing plate 42 is not less than 90°. As shown in the figure, the bending angle of the force-bearing plate 42 is preferably an obtuse angle. The force-bearing plate 42 is a bent plate because the bending stiffness formed by bending can reduce the problem of stress concentration along the plate. That is, when the pressure head 5 applies a downward force to the beam 2, the force-bearing plate 42 can better disperse the force during the force-bearing process, reducing the problem of damage to the plate caused by stress concentration, while also being more able to withstand the force.
[0033] Furthermore, a U-shaped baffle 44 is detachably provided on the load-bearing plate 42. The end of the baffle 44 corresponds to the end face 13 of the mounting frame 1, and the two are spaced apart; the spacing between the baffle 44 and the end face 13 is preferably 0.75±0.25mm, so as to avoid interference between the mounting frame 1 and the end face 13 to generate prestress. The bending part of the load-bearing plate 42 is located below the baffle 44. The baffle 44 reduces the distance between the mounting frame 1 and the load-bearing plate, and prevents the load-bearing plate 42 from directly contacting the CCB profile bracket during the load test, thereby reducing the degree of deformation of the CCB profile bracket and the degree of damage to the load-bearing plate 42, and extending the service life of the CCB profile bracket testing device.
[0034] 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. CCB profile bracket, characterized by: The invention comprises a mounting frame (1) and a crossbeam (2); the end of the crossbeam (2) is located in the mounting frame (1), and the outer end surface of the mounting frame (1) is welded to the crossbeam (2); a connecting piece (11) is extended from the mounting frame (1) in the direction of the crossbeam (2); and the connecting piece (11) is welded to the crossbeam (2).
2. The CCB profile bracket according to claim 1, characterized in that: There is at least one connecting piece (11), which is located on the upper surface of the crossbeam (2) and is welded to the edge of the crossbeam (2).
3. The CCB profile bracket according to claim 2, characterized in that: There are two connecting pieces (11), which are respectively located on the upper and lower surfaces of the crossbeam (2), and both connecting pieces (11) are welded to the edges of the crossbeam (2).
4. The CCB profile bracket according to claim 3, characterized in that: A group of connecting bridges (101) are provided in the mounting frame (1), and the strength of the mounting frame (1) is enhanced by the connecting bridges (101).
5. The CCB profile bracket according to claim 4, characterized in that: The main body of the mounting frame (1) is L-shaped, with a bottom (12) arranged parallel to the connecting piece (11), and a group of bolt holes (120) formed on the bottom (12); the end (13) of the mounting frame (1) is integrally arranged with the connecting piece (11); and a reinforcing rib (102) connects the bottom (12) and the end (13).
6. A CCB profile bracket testing device, used to test the strength of a CCB profile bracket according to any one of claims 1 to 5; characterized in that: It comprises a base plate (3), a placement fixture (4) and a pressure head (5); the placement fixture (4) is fixed to the base plate (3) by bolts; the pressure head (5) is located directly above the base plate (3) and above the side of the placement fixture (4).
7. The CCB profile bracket testing device according to claim 6, characterized in that: The base (41) of the placement fixture (4) is detachably arranged on the bottom plate (3), and a limit block (411) is provided on the upper surface of the base (41), and force plates (42) are provided on both sides of the limit block (411); the force plates (42) are bent plates, and a placement table (43) for placing the CCB profile bracket is provided on the top thereof.
8. The CCB profile bracket testing device according to claim 7, characterized in that: A U-shaped baffle (44) is detachably provided on the load-bearing plate (42); an end of the baffle (44) corresponds to an end (13) of the mounting frame (1), and the two are spaced apart; a bending angle of the load-bearing plate (42) is not less than 90°, and the bending portion is located below the baffle (44).
9. The CCB profile bracket testing device according to claim 8, characterized in that: The bottom (12) of the mounting frame (1) is connected to the placement platform (43) via bolts, and the side surface of the placement platform (43) is located at the edge of the reinforcing rib (102).
10. The CCB profile bracket testing device according to claim 9, characterized in that: The pressure head (5) is located directly above the crossbeam (2) and moves vertically downward at a constant speed of 3±2 mm / min, while applying a force to the crossbeam (2) until the crossbeam (2) is deformed.