Quasi-static crushing energy absorption detection device for automobile plate component

Abstract

The utility model relates to the technical field of detection devices, and provides a quasi-static crushing energy absorption detection device for an automobile plate member. The automobile plate component is a lengthwise component. The detection device comprises a base; the supporting frames are installed on the base in a spaced mode so as to support the automobile plate component; and the pressing head assembly is arranged to do reciprocating motion between the pair of supporting frames in the direction perpendicular to the automobile plate component, the pressing head assembly comprises a pressing head body and a pressing block detachably installed on the pressing head body, and the pressing block is provided with a convex-arc-shaped collision surface. The detection device provided by the utility model is convenient to install, can quickly realize accurate positioning of the automobile component, and is high in accuracy of a test result.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a quasi-static crushing energy absorption detection device for automobile plate components. Background Art

[0002] During a frontal collision, anti-collision beams, cap-shaped parts and other automotive components can absorb part of the energy generated by the collision through crushing and deformation, and transfer the collision force to the rear load-bearing structures such as the front longitudinal beam and subframe to ensure the safety of the people on the vehicle. The structural strength and energy absorption capacity of anti-collision beams, cap-shaped parts, etc. need to be obtained through quasi-static crushing tests.

[0003] Patent CN208239093U discloses a three-point bending test device for an anti-collision beam, comprising a support plate placed horizontally on a fixed platform of a press, a left bracket and a right bracket arranged on the support plate, and a pressure head fixedly connected to the mobile end of the press. The device does not require the assembly of the entire vehicle and can detect the collision characteristics of the anti-collision beam. However, the device lacks a pressure head center positioning and a sample positioning device, and the test results have poor accuracy and repeatability.

[0004] Therefore, there is an urgent need to invent a quasi-static crush energy absorption detection device that is easy to install and convenient for sample positioning to detect the ability of automobile components such as anti-collision beams and cap-shaped parts to resist external impacts and effectively absorb collision energy during low-speed collisions. Utility Model Content

[0005] The utility model provides a quasi-static crush energy absorption detection device for an automobile plate component. The device is easy to install, can quickly realize the precise positioning of the automobile component, and has a high accuracy of the test result.

[0006] In order to solve at least one of the above technical problems, the utility model adopts the following technical solutions:

[0007] According to the utility model, a quasi-static crush energy absorption detection device for an automobile panel component is provided. The automobile panel component is a longitudinal component, and the detection device comprises: a base; a support frame, a pair of the support frames are installed on the base at intervals to support the automobile panel component; and a pressure head assembly, which is configured to reciprocate between the pair of support frames in a direction perpendicular to the automobile panel component, and the pressure head assembly comprises a pressure head body and a pressure block detachably mounted to the pressure head body, and the pressure block has a convex arc-shaped collision surface.

[0008] According to an embodiment of the utility model, one of the pressure head body and the pressure block is provided with a dovetail groove, and the other is provided with a dovetail slider matching the dovetail groove, and the pressure block is connected to the pressure head body via the dovetail groove and the dovetail slider.

[0009] According to an embodiment of the present invention, the detection device includes: a pressure block fixing bolt, which is configured to pass through a portion of the pressure block and then abut against or screw into the pressure head body to screw the pressure block into and fix it to the pressure head body.

[0010] According to one embodiment of the utility model, one of the base and the support frame is provided with a dovetail groove, and the other is provided with a dovetail slider matching the dovetail groove, and a pair of the support frames are slidably connected to the base via the dovetail groove and the dovetail slider.

[0011] According to an embodiment of the present invention, the support frame includes: a support frame fixing bolt, which is configured to pass through a portion of the support frame and then abut against or screw into the base to fix the support frame fixing bolt to the base.

[0012] According to one embodiment of the utility model, the support frame includes: a support frame body, configured to be installed on the base; and a movable support roller, configured to be rotatably installed to the support frame body and support the automobile panel component, and the rotation axis of the movable support roller is perpendicular to the longitudinal extension direction of the automobile panel component.

[0013] According to an embodiment of the utility model, the support frame includes: a support roller mounting member, a pair of the support roller mounting members are installed on the support frame body at intervals to rotatably support the movable support roller at both ends.

[0014] According to an embodiment of the utility model, the base includes: a ruler, which is arranged to be parallel to the longitudinal extension direction of the automobile panel component.

[0015] According to an embodiment of the present invention, the support frame includes: a positioner, which is configured to limit the position of the automobile panel component relative to the support frame.

[0016] According to an embodiment of the present invention, there are multiple pressing blocks, and the convex arc-shaped collision surfaces of the multiple pressing blocks have different radii.

[0017] By adopting the above technical solution, the quasi-static crush energy absorption detection device of the automobile plate component according to the utility model has at least the following advantages:

[0018] (1) According to the test device of the utility model, the pressure blocks of different radii can be replaced according to the requirements of different parts without replacing the entire pressure head assembly;

[0019] (2) A dovetail groove is provided between the support frame and the base to ensure that the relative position of the support frame and the base is fixed and no offset occurs; and a positioning scale is provided on the support frame and the bottom plate to ensure that the two support frames are symmetrical with respect to the pressure head assembly and are easy to adjust;

[0020] (3) The support frame is equipped with movable support rollers, which greatly reduces the friction between the support frame and the automobile panel components during the crushing test, making the test results more accurate;

[0021] (4) A sample locator is provided on the support frame to ensure that the transverse and longitudinal directions of automobile panel components of different widths are perpendicular to the collision direction of the pressure head assembly, making the installation of automobile panel components quick and convenient;

[0022] (5) After the base of the device is installed on the testing machine, it can be left unassembled. The support frame can be moved to the sides or removed to carry out other tests without having to disassemble the base back and forth. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0024] Figure 1 A schematic diagram of a quasi-static crush energy absorption detection device for an automobile panel member according to an embodiment of the utility model;

[0025] Figure 2a It is a front view of a detection device according to an embodiment of the utility model;

[0026] Figure 2b for Figure 2a A top view of the detection device shown;

[0027] Figure 2c for Figure 2a A side view of the detection device shown;

[0028] Figure 3 for Figure 2a A cross-sectional view of the detection device along AA;

[0029] Figure 4 It is an exploded view of a detection device according to an embodiment of the utility model.

[0030] Description of Reference Numerals

[0031] 10. Automobile panel components;

[0032] 100, base, 110, base body, 111, first dovetail slide groove, 112, T-shaped slide groove, 120, base connector, 130, base fixing bolt, 140, base fixing ring;

[0033] 200, support frame, 210, support frame body, 211, first dovetail slider, 220, support frame fixing bolt, 230, movable support roller, 240, support roller mounting member, 250, support roller fixing bolt;

[0034] 300, pressure head assembly, 310, pressure head body, 311, second dovetail slide, 320, pressure block, 321, collision surface, 322, second dovetail slider, 330, pressure block fixing bolt, 340, pressure head connecting piece, 350, pressure head fixing bolt, 360, pressure head fixing ring. DETAILED DESCRIPTION

[0035] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0036] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0037] In the specification and claims of the utility model and the above-mentioned drawings, when an element is referred to as being "fixed on" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it may be directly or indirectly connected to the other element.

[0038] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0039] Figure 1The schematic diagram of the quasi-static crush energy absorption detection device of the automobile panel component according to one embodiment of the utility model is shown. The detection device is suitable for detecting the ability of the longitudinal automobile panel component 10 to resist external impact and effectively absorb collision energy, and specifically comprises: a base 100, a support frame 200 and a pressure head assembly 300. Among them, a pair of support frames 200 are installed on the base 100 at intervals to support the automobile panel component 10; the pressure head assembly 300 is configured to reciprocate between the pair of support frames 200 along a third direction perpendicular to the automobile panel component 10, so as to test its energy absorption effect through the collision of the pressure head assembly 300 with the middle part of the automobile panel component 10.

[0040] Figure 2a-Figure 4 The various components of the detection device of an embodiment of the utility model are shown from different angles. For the convenience of description, the longitudinal extension direction of the automobile panel component 10 is defined as the "first direction"; the lateral extension direction of the automobile panel component 10 is defined as the "second direction"; and the direction perpendicular to the first direction and the second direction is defined as the "third direction". In actual production, the second direction is usually perpendicular to the first direction in a horizontal plane, and the third direction is usually a vertical direction.

[0041] Base 100

[0042] The base 100 generally includes a base body 110 and a base connector 120. The base body 110 is detachably mounted on a fixed frame of the test machine through the base connector 120. In the embodiment of the utility model, the base connector 120 has a T-shaped structure, the upper end of which is truncated and can be connected to the base body 110 through a base fixing bolt 130; the lower end of which is cylindrical and can be connected to the fixed workbench of the test machine, and further the base fixing ring 140 is provided to ensure the firmness of the installation.

[0043] Support frame 200

[0044] The support frame 200 of the utility model is designed to slide along a first direction relative to the base 100. Specifically, in one embodiment, the upper surface of the base 100 is provided with a first dovetail slide groove 111 extending along the first direction, and the support frame 200 includes a support frame body 210 and a first dovetail slider 211 matching the first dovetail slide groove 111 is provided on the lower surface of the support frame body 210, so that a pair of support frames 200 can be slidably connected to the base 100 through the first dovetail slide groove 111 and the first dovetail slider 211. Preferably, the first dovetail slide groove 111 can be designed to extend to both ends of the base 100 in the first direction, so that the support frame 200 can be removed from the base 100 by sliding out of the first dovetail slide groove 111 at the end of the base 100. As a result, the base 100 can further install other test devices or complete other test items. Alternatively, a dovetail slider may be provided on the upper surface of the base 100 , and a dovetail groove matching the dovetail slider may be provided on the lower surface of the support frame body 210 ; or other types of sliding connectors may be designed to connect the support frame 200 and the base 100 .

[0045] In order to achieve the relative fixation between the support frame 200 and the base 100, a support frame fixing bolt 220 can be provided, so that it passes through a part of the support frame body 210 and then abuts against or screws into the base 100 to fix the support frame fixing bolt 220 to the base 100. In an embodiment of the utility model, the upper surface of the base body 110 is provided with a T-shaped slide groove 112 extending along the first direction, so that the support frame fixing bolt 220 can clamp the bolt head in the T-shaped slide groove 112 in an inverted manner and move along the T-shaped slide groove 112 in the first direction; the bottom of the support frame body 210 is provided with a through hole, and the part of the support frame fixing bolt 220 extending from the T-shaped slide groove 112 passes through the through hole and is tightened and fixed with a corresponding nut. Through the above arrangement, the support frame fixing bolt 220 can move relative to the base 100 along the first direction along with the support frame body 210, and fix the support frame body 210 to any position in the moving path.

[0046] In an embodiment of the utility model, the support frame 200 may further include a movable support roller 230 mounted on the upper part of the support frame body 210. The movable support roller 230 extends along the second direction, is configured to be rotatably mounted on the support frame body 210 and support the automobile panel component 10. Preferably, the movable support roller 230 can be detachably mounted to the support frame body 210 through a support roller mounting member 240. Specifically, a pair of support roller mounting members 240 are installed on the support frame body 210 at intervals to rotatably support the movable support roller 230 at both ends; a plurality of support roller fixing bolts 250 fix the support roller mounting member 240 supporting the movable support roller 230 to the upper part of the support frame body 210. By providing the movable support roller 230, the contact between the support frame 200 and the automobile panel component 10 during the impact test is changed from sliding contact to rolling contact, which greatly reduces the friction between the support frame 200 and the automobile panel component 10, and can make the obtained test results more accurate.

[0047] In an embodiment of the present invention, the base 100 may be further provided with a scale extending parallel to the first direction, and a pointer corresponding to the scale may be provided on the support frame 200, so as to accurately measure the specific positions of a pair of support frames 200, and ensure that the two are symmetrical relative to the pressure head assembly 300. In another embodiment of the present invention, a positioner with a scale that can be extended and retracted along the second direction is provided on the support roller mounting member 240, so as to ensure that the transverse direction and the longitudinal direction of the automobile panel components 10 of different width specifications are perpendicular to the collision direction of the pressure head assembly 300.

[0048] Pressure head assembly 300

[0049] The press head assembly 300 generally comprises a press head body 310 and a press block 320 detachably mounted to the press head body 310, wherein the press block 320 has a convex arc-shaped collision surface 321. Preferably, there may be a plurality of press blocks 320, and the convex arc-shaped collision surfaces 321 of the plurality of press blocks 320 have different radii. Thus, the collision requirements of automobile panel components 10 of different specifications can be achieved by simply replacing press blocks 320 of different radius specifications, without replacing the entire press head assembly 300.

[0050] In the embodiment of the present invention, the lower surface of the pressure head body 310 is provided with a second dovetail groove 311, and the upper surface of the pressure block 320 is provided with a second dovetail slider 322 matching the second dovetail groove 311, and the pressure block 320 is connected to the pressure head body 310 through the second dovetail groove 311 and the second dovetail slider 322. Further, the pressure block fixing bolt 330 is configured to pass through a portion of the pressure block 320 and then abut against or screw into the pressure head body 310 to screw the pressure block 320 into and fix it to the pressure head body 310. Specifically, Figure 3As shown, the pressing block fixing bolts 330 are arranged at both ends of the pressing block 320 along the second direction, which can avoid contact with the automobile panel component 10 during the collision process and will not affect the test results. Alternatively, a dovetail slider can be arranged on the lower surface of the pressing head body 310, and a dovetail groove matching the dovetail slider can be arranged on the upper surface of the pressing block 320; or other types of sliding connectors can be designed to connect the pressing head body 310 and the pressing block 320.

[0051] The pressure head assembly 300 further includes a pressure head connector 340. The pressure head body 310 is detachably mounted to the mobile end of the test machine through the pressure head connector 340, and moves along the third direction driven by the mobile end to collide with the automobile panel component 10. In the embodiment of the utility model, the lower end of the pressure head connector 340 can be connected to the pressure head body 310 through the pressure head fixing bolt 350; its upper end is connected to the mobile end of the test machine, and further the pressure head fixing ring 360 is set to ensure the firmness of the installation.

[0052] When using the test device of the utility model for testing, the support frame 200 is installed on the base 100; the automobile panel component 10 is placed on the support frame 200 and adjusted to a suitable position; the mobile end of the test machine is driven to drive the pressure head assembly 300 to move downward to collide with the automobile panel component 10 at a low speed. Among them, the pressure block 320 with an appropriate radius can be selected according to the test requirements and the parameters such as the spacing of the support frame 200 can be adjusted. By observing the surface of the automobile panel component 10 after the collision, the ability of the automobile panel component 10 to resist external impact and effectively absorb energy during the collision can be evaluated.

[0053] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0054] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0055] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A quasi-static crush energy absorption detection device for an automobile panel component, wherein the automobile panel component (10) is a longitudinal component, characterized in that: The detection device comprises: base(100); A support frame (200), a pair of the support frames (200) being installed on the base (100) at intervals to support the automobile panel component (10); and The pressure head assembly (300) is arranged to reciprocate between a pair of support frames (200) in a direction perpendicular to the automobile panel component (10), the pressure head assembly (300) comprising a pressure head body (310) and a pressure block (320) detachably mounted to the pressure head body (310), the pressure block (320) having a convex arc-shaped collision surface (321).

2. The detection device according to claim 1, characterized in that: One of the pressure head body (310) and the pressure block (320) is provided with a second dovetail groove (311), and the other is provided with a second dovetail slider (322) matching the second dovetail groove (311); the pressure block (320) is connected to the pressure head body (310) via the second dovetail groove (311) and the second dovetail slider (322).

3. The detection device according to claim 1 or 2, characterized in that: The detection device comprises: The pressing block fixing bolt (330) is arranged to pass through a portion of the pressing block (320) and then abut against or screw into the pressing head body (310) so as to screw the pressing block (320) into and fix it to the pressing head body (310).

4. The detection device according to claim 1, characterized in that: One of the base (100) and the support frame (200) is provided with a first dovetail slide groove (111), and the other is provided with a first dovetail slider (211) matching the first dovetail slide groove (111), and a pair of the support frames (200) are slidably connected to the base (100) via the first dovetail slide groove (111) and the first dovetail slider (211).

5. The detection device according to claim 1 or 4, characterized in that: The support frame (200) comprises: The support frame fixing bolt (220) is arranged to pass through a portion of the support frame (200) and then abut against or be screwed into the base (100) to fix the support frame fixing bolt (220) to the base (100).

6. The detection device according to claim 5, characterized in that The support frame (200) comprises: A support frame body (210) is configured to be mounted on the base (100); and The movable support roller (230) is arranged to be rotatably mounted on the support frame body (210) and to support the automobile panel component (10); the rotation axis of the movable support roller (230) is perpendicular to the longitudinal extension direction of the automobile panel component (10).

7. The detection device according to claim 6, characterized in that: The support frame (200) comprises: A support roller mounting member (240), wherein a pair of the support roller mounting members (240) are installed on the support frame body (210) at intervals to rotatably support the movable support roller (230) at both ends.

8. The detection device according to claim 1, characterized in that: The base (100) comprises: A scale is arranged to be parallel to the longitudinal extension direction of the automobile panel component (10).

9. The detection device according to claim 1, characterized in that: The support frame (200) comprises: A positioner is arranged to define the position of the automobile panel component (10) relative to the support frame (200).

10. The detection device according to claim 1, characterized in that: There are a plurality of pressing blocks (320), and the convex arc-shaped collision surfaces (321) of the plurality of pressing blocks (320) have different radii.

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