Automobile tubular column crumple test tool with angle
By designing an angled vehicle column collapse test tooling, using the combined structure of guide rails, nuts and sliders, and combining the contact method of metal ball heads, the problem of the concentrated force of the column collapse test tooling in the prior art was solved, and the stability and adaptability of the test were achieved.
Patent Information
- Application Number
- CN202421618156.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-10
AI Technical Summary
During the existing automobile pipe column collapse test tooling with angle test, the indenter head is in direct contact with the end face of the steering shaft, resulting in concentrated stress, which is prone to damage the spline of the shaft end face.
An angled vehicle pipe column collapse test tooling is designed to adjust the length of the positioning bracket by connecting the guide rails and nuts. The slider is bolted to the positioning bracket, and there is a waist-shaped groove on the slider to adapt to different hard point sizes. There are angle positioning holes on the fixing base, and the mounting angle of the pipe string can be adjusted by angle adjustment bolts, and the press head is spaced from the steering shaft end through the metal ball head.
Through contact with the metal ball head, the stress concentration of the shaft end is avoided, the risk of surface spline damage is reduced, and the adaptability to collapse tests of different angles is achieved, and the test requirements of different installation hard points and angles are met.
Smart Images
Figure CN222866182U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steering systems, in particular to an angled automobile column collapse test tool. Background Art
[0002] When a car collides while driving, the driver will lean forward due to inertia. At this time, the car column will drive the steering wheel to move toward the dashboard, giving the cockpit more space and preventing the driver from being injured by a rigid collision with the steering wheel.
[0003] For small assembly levels of pipe columns, vehicle manufacturers will design a collapse test to simulate the sliding performance of the pipe column during a car collision. Figure 1 As shown: the pipe column axis is perpendicular to the horizontal plane, the pipe column is fixed to the corresponding tooling by installing screws, and the press head applies pressure F on the shaft end to cause a relative displacement H.
[0004] As the safety performance of automobiles is improved, more and more vehicle manufacturers want the angle of the column collapse test to be consistent with the angle of its installation to simulate the actual collision condition. However, if the column collapse test is carried out at an angle, the pressure head will directly contact the end face of the steering shaft, which will cause the stress concentration on the steering shaft end to be damaged. Summary of the invention
[0005] The utility model provides an angled automobile pipe column collapse test tool to overcome the deficiencies of the prior art. Two positioning brackets are connected by guide rails and nuts so that the length of the two positioning brackets can be adjusted. A slide block is connected to the positioning bracket by bolts, and a waist-shaped groove is provided on the slide block, which can meet the installation of pipe columns with different hard point sizes of customers.
[0006] To achieve the above purpose, an angled automobile column collapse test tool is designed, including a column mounting bracket and a fixed base, characterized in that: the column mounting bracket is connected to the fixed base by an angle adjustment bolt, the column mounting bracket is an L-shaped structure, the column positioning bracket is connected to the horizontal panel of the column mounting bracket, and an angle adjustment groove is provided on the vertical panel of the column mounting bracket, and the angle adjustment groove is connected to the fixed base by an angle adjustment bolt.
[0007] The horizontal panel of the pipe column mounting bracket is a rectangular panel structure. A plurality of slide grooves are arranged on the horizontal panel of the pipe column mounting bracket, and the slide grooves are slidably connected to the pipe column positioning bracket.
[0008] The column positioning bracket includes a first positioning bracket, a second positioning bracket, and a guide rail. The bottom of the first positioning bracket and the second positioning bracket are connected to the slide groove through a slider assembly. The top of the first positioning bracket and the second positioning bracket is provided with a plurality of sliders, and the sliders are provided with waist-shaped holes. The sliders are connected to the first positioning bracket and the second positioning bracket by bolts passing through the waist-shaped holes.
[0009] The first positioning bracket and the second positioning bracket are connected via guide rails and nuts.
[0010] Arc-shaped angle adjustment grooves are respectively arranged on the upper and lower sides of the vertical panel of the column mounting bracket, and the angle adjustment bolts pass through the angle adjustment grooves and are connected to the fixed base.
[0011] A reinforcing rib is connected between the horizontal panel of the pipe column mounting bracket and the vertical panel of the pipe column mounting bracket.
[0012] The fixed base is an L-shaped panel structure, and a plurality of angle positioning holes are arranged on the vertical panel of the fixed base. The angle adjustment bolt passes through the angle adjustment slot on the vertical panel of the column mounting bracket and is connected with the angle positioning hole on the vertical panel of the fixed base.
[0013] The column positioning bracket is connected to the steering column to be tested, a metal ball head is arranged on the top of the steering shaft spline of the steering column to be tested, and a press head is arranged above the metal ball head.
[0014] Compared with the prior art, the utility model provides an angled automobile pipe column collapse test tooling, wherein two positioning brackets are connected by guide rails and nuts so that the length between the two positioning brackets can be adjusted; a sliding block is connected to the positioning bracket by bolts, and a waist-shaped groove is provided on the sliding block so as to meet the installation requirements of pipe columns with different hard point sizes of customers.
[0015] There are angle positioning holes on the fixed base. When the angle adjustment bolts are loosened, the installation angle of the steering column can be adjusted. For the collapse test at different angles, that is, when the θ angle changes, the same tooling can meet the collapse test requirements of columns with different installation hard points and various angles.
[0016] During the collapse test, the press head and the steering shaft end are changed from direct point-to-surface contact to contact through a metal ball head, to avoid concentrated force on the shaft end, which would lead to damage to the shaft end spline. The steering shaft is a hollow shaft, and the metal ball head does not need to be fixed to the steering shaft with a connector, but only needs to be placed on the shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Schematic diagram of the collapse test movement process.
[0018] Figure 2 It is a schematic diagram of the structure of the utility model.
[0019] Figure 3 This is a schematic diagram of the structure of the central column mounting bracket of the utility model.
[0020] Figure 4 This is an enlarged schematic diagram of the pipe column shaft end. DETAILED DESCRIPTION
[0021] The utility model is further described below with reference to the accompanying drawings.
[0022] like Figures 2 to 4 As shown, the fixed base 4 is connected to the pipe column mounting bracket 3 by an angle adjustment bolt 5, the pipe column mounting bracket 3 is an L-shaped structure, the horizontal panel 3-1 of the pipe column mounting bracket is connected to the pipe column positioning bracket, and the vertical panel 3-2 of the pipe column mounting bracket is provided with an angle adjustment groove 3-4, and the angle adjustment groove 3-4 is connected to the fixed base 4 by an angle adjustment bolt 5.
[0023] The horizontal panel 3-1 of the pipe column mounting bracket is a rectangular panel structure. A plurality of slide grooves 3-8 are arranged on the horizontal panel 3-1 of the pipe column mounting bracket, and the slide grooves 3-8 are slidably connected to the pipe column positioning bracket.
[0024] The pipe column positioning bracket includes a first positioning bracket, a second positioning bracket, and a guide rail. The bottom of the first positioning bracket 3-5 and the second positioning bracket 3-6 are connected to the slide groove 3-8 through a slider assembly. A plurality of sliders 3-7 are provided on the top of the first positioning bracket 3-5 and the second positioning bracket 3-6. The sliders 3-7 are provided with waist-shaped holes 3-10; the sliders 3-7 are connected to the first positioning bracket 3-5 and the second positioning bracket 3-6 by bolts 3-9 passing through the waist-shaped holes 3-10.
[0025] The first positioning bracket 3-5 and the second positioning bracket 3-6 are connected via a guide rail 3-11 and a nut 3-12.
[0026] Arc-shaped angle adjustment grooves 3-4 are respectively provided on the upper and lower sides of the vertical panel 3-2 of the column mounting bracket, and the angle adjustment bolts 5 pass through the angle adjustment grooves 3-4 and are connected to the fixed base 4.
[0027] A reinforcing rib 3-3 is connected between the horizontal panel 3-1 of the pipe column mounting bracket and the vertical panel 3-2 of the pipe column mounting bracket.
[0028] The fixed base 4 is an L-shaped panel structure, and a plurality of angle positioning holes 4-2 are provided on the vertical panel 4-1 of the fixed base. The angle adjustment bolts 5 pass through the angle adjustment slots 3-4 on the vertical panel 3-2 of the column mounting bracket and are connected to the angle positioning holes 4-2 on the vertical panel 4-1 of the fixed base.
[0029] The column positioning bracket 3 is connected to the steering column 6 to be tested. A metal ball head 2 is provided on the top of the steering shaft spline 7 of the steering column 6 to be tested. A press head 1 is provided above the metal ball head 2 .
[0030] The fixed base 4 of the collapse tool of the utility model is fixed on the test bench, the rotating column mounting bracket 3 is connected to the fixed base 4 through the mounting bolts 5 on the angle adjustment slot 3-4, and the steering column 6 to be tested is connected to the first positioning bracket 3-5 and the second positioning bracket 3-6 of the horizontal panel 3-1 of the column mounting bracket through bolts 3-9. When doing the collapse test with an angle θ, the press head 1 is transmitted to the shaft end of the steering shaft spline 7 of the steering column 6 to be tested through the metal ball head 2, so that the column undergoes axial relative sliding. Among them, θ is an arbitrary value, which is related to the collapse test requirements of the vehicle manufacturer.
[0031] The advantages of this utility model structure and design are as follows:
[0032] 1. The two positioning brackets are connected by guide rails and nuts so that the length between the two positioning brackets can be adjusted; the slider is connected to the positioning bracket by bolts, and there is a waist-shaped groove on the slider, which can meet the installation of pipe columns with different hard point sizes of customers;
[0033] 2. There are angle positioning holes on the fixed base. When the angle adjustment bolts are loosened, the installation angle of the steering column can be adjusted. For the collapse test at different angles, that is, when the θ angle changes, the same tooling can meet the collapse test requirements of columns with different installation hard points and various angles;
[0034] 3. During the collapse test, the press head and the steering shaft end are changed from direct point-to-surface contact to contact through a metal ball head to avoid concentrated force on the shaft end, which may lead to damage to the shaft end spline. The steering shaft is a hollow shaft, and the metal ball head does not need to be fixed to the steering shaft with a connector, but only needs to be placed on the shaft.
Claims
1. An angled automobile column collapse test fixture, comprising a column mounting bracket and a fixed base, characterized in that: The fixed base (4) is connected to the pipe column mounting bracket (3) via an angle adjustment bolt (5); the pipe column mounting bracket (3) is in an L-shaped structure; a horizontal panel (3-1) of the pipe column mounting bracket is connected to the pipe column positioning bracket; an angle adjustment groove (3-4) is provided on the vertical panel (3-2) of the pipe column mounting bracket; and the angle adjustment groove (3-4) is connected to the fixed base (4) via an angle adjustment bolt (5).
2. The angled automobile column collapse test fixture according to claim 1, characterized in that: The horizontal panel (3-1) of the pipe column mounting bracket is a rectangular panel structure. A plurality of slide grooves (3-8) are arranged on the horizontal panel (3-1) of the pipe column mounting bracket, and the slide grooves (3-8) are slidably connected to the pipe column positioning bracket.
3. The angled automobile column collapse test fixture according to claim 1 or 2, characterized in that: The column positioning bracket comprises a first positioning bracket, a second positioning bracket and a guide rail. The bottom of the first positioning bracket (3-5) and the second positioning bracket (3-6) are connected to the slide groove (3-8) through a slider assembly. The top of the first positioning bracket (3-5) and the second positioning bracket (3-6) is provided with a plurality of sliders (3-7). The sliders (3-7) are provided with waist-shaped holes (3-10). The sliders (3-7) are connected to the first positioning bracket (3-5) and the second positioning bracket (3-6) through bolts (3-9) passing through the waist-shaped holes (3-10).
4. The angled automobile column collapse test fixture according to claim 3, characterized in that: The first positioning bracket (3-5) and the second positioning bracket (3-6) are connected via a guide rail (3-11) and a nut (3-12).
5. The angled automobile column collapse test fixture according to claim 1, characterized in that: Arc-shaped angle adjustment grooves (3-4) are respectively provided on the upper and lower sides of the vertical panel (3-2) of the column mounting bracket, and the angle adjustment bolts (5) pass through the angle adjustment grooves (3-4) and are connected to the fixed base (4).
6. The angled automobile column collapse test fixture according to claim 1, characterized in that: A reinforcing rib (3-3) is connected between the horizontal panel (3-1) of the pipe column mounting bracket and the vertical panel (3-2) of the pipe column mounting bracket.
7. The angled automobile column collapse test fixture according to claim 1, characterized in that: The fixed base (4) is an L-shaped panel structure, and a plurality of angle positioning holes (4-2) are provided on the vertical panel (4-1) of the fixed base. The angle adjustment bolts (5) pass through the angle adjustment slots (3-4) on the vertical panel (3-2) of the column mounting bracket and are connected to the angle positioning holes (4-2) on the vertical panel (4-1) of the fixed base.
8. The angled automobile column collapse test fixture according to claim 1, characterized in that: The column mounting bracket (3) is connected to the steering column (6) to be tested, a metal ball head (2) is provided on the top of the steering shaft spline (7) of the steering column (6) to be tested, and a press head (1) is provided above the metal ball head (2).