A device for detecting the toughness of a composite material vehicle interior

Abstract

This utility model relates to the field of vehicle interior technology, and provides a device for testing the toughness of composite material vehicle interior trim. It includes a mounting frame, a guide assembly and a tensioning assembly mounted on the mounting frame, and a winding assembly that runs through the mounting frame. The mounting frame includes an outer frame and two mounting side plates symmetrically arranged inside the outer frame. The tops of the two mounting side plates are symmetrically arranged with clamping blocks, and a connecting rod connects the two mounting side plates. The guide assembly includes a first guide mechanism and a second guide mechanism symmetrically arranged about the center of the mounting frame. This device solves the problem of insufficient tension in the vehicle interior trim due to poor coordination between the winding structure and the tensioning mechanism, which affects the toughness test results. It achieves the effect of simultaneously tensioning the vehicle interior trim while winding it, ensuring that the vehicle interior trim remains fully tensioned throughout the toughness test and avoiding the impact of insufficient tension on the toughness test results.

Description

Technical Field

[0001] This utility model relates to the field of vehicle interior technology, and more specifically, it relates to a device for testing the toughness of composite material vehicle interiors. Background Technology

[0002] Vehicle interior trim is a crucial component of a vehicle's interior space, impacting not only the comfort of passengers but also the overall quality and safety of the vehicle. Composite material vehicle interior trim combines two or more materials with different properties to leverage their respective advantages. This not only enhances the performance and comfort of the interior but also meets the requirements for lightweight and environmentally friendly vehicles. Before use, composite material vehicle interior trim requires toughness testing to ensure it meets operational requirements.

[0003] Patent CN221445656U discloses a device for testing the toughness of interior fabrics for vehicles. The device involves wrapping the interior fabric to be tested around the outer surface of a winding column and then fixing the fabric with a fixing plate, thereby facilitating the testing of toughness.

[0004] Although the above-mentioned device can fix the fabric and test its toughness, the fixing and wrapping of the fabric are achieved by different mechanisms. Poor coordination between the two can result in the fabric being in an insufficiently tensioned state during the toughness test, thus affecting the accuracy of the toughness test results. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a composite material vehicle interior toughness testing device that tensions the vehicle interior while wrapping it, ensuring that the vehicle interior remains fully tensioned throughout the toughness testing process and avoiding the impact of insufficient tension on the toughness test results.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A composite material vehicle interior toughness testing device includes a mounting frame, a guide assembly and a tensioning assembly mounted on the mounting frame, and a winding assembly extending through the mounting frame. The mounting frame includes an outer frame and two mounting side plates symmetrically arranged inside the outer frame. A clamping block is symmetrically arranged on the top of each of the two mounting side plates, and a connecting rod connects the two mounting side plates. The guide assembly includes a first guide mechanism and a second guide mechanism symmetrically arranged about the center of the mounting frame. The tensioning assembly includes a first tensioning mechanism and a second tensioning mechanism symmetrically arranged about the mounting frame. The first tensioning mechanism is connected to the first guide mechanism and can drive the first guide mechanism to abut against the clamping block. The second tensioning mechanism is connected to the second guide mechanism and can drive the second guide mechanism to abut against the clamping block.

[0008] The present invention is further configured such that: the first guide mechanism and the second guide mechanism have the same structure, the first guide mechanism includes a fixing block connected to the connecting rod, the fixing blocks are symmetrically arranged about the connecting rod, and guide frames are respectively connected to both sides of the two fixing blocks.

[0009] The present invention is further configured such that: the guide frame is provided with an installation through hole, the shape of the installation through hole is adapted to the fixing block, and multiple guide rollers are rotatably arranged between the two guide frames.

[0010] The present invention is further configured such that: the first tensioning mechanism and the second tensioning mechanism have the same structure, the first tensioning mechanism includes a connecting seat installed on the side wall of the mounting side plate and a tensioning cylinder connected to the connecting seat, and the output end of the tensioning cylinder is connected to a connector.

[0011] The present invention is further configured such that: a tensioning rod is rotatably connected to the connector head, and the tensioning rod is connected to the first guide mechanism.

[0012] By adopting the above technical solution, the extension and retraction of the tensioning cylinder can drive the tensioning rod to rotate relative to the connecting head. During the rotation of the tensioning rod, the guide frame is simultaneously driven to rotate relative to the connecting seat, ultimately causing the side wall of the guide frame to abut against the side wall of the pressing block, pressing the vehicle interior between the guide frame and the pressing block.

[0013] The present invention is further configured such that: the winding assembly includes a winding shaft that passes through the outer frame, the winding shaft is rotatably mounted on the outer frame, and one end of the winding shaft is connected to a motor.

[0014] The present invention is further configured such that: a guide plate is connected to the bottom of the two mounting side plates, a limit frame is provided at the top of the two mounting side plates, and a limit roller is provided between the two limit frames.

[0015] The beneficial effects of this utility model are:

[0016] The vehicle interior trim is wound onto a take-up assembly, a first guide mechanism, and a second guide mechanism. After the vehicle interior trim is wound and tensioned by the take-up assembly, the first tensioning mechanism drives the first guide mechanism to rotate and abut against the clamping block. The second tensioning mechanism drives the second guide mechanism to rotate and abut against the clamping block, thus pressing the vehicle interior trim and ensuring that it remains fully tensioned throughout the subsequent toughness test. This avoids the inaccuracy of the toughness test results due to insufficient tension of the vehicle interior trim. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the toughness testing device of this utility model.

[0019] Figure 2 for Figure 1 The top view shown.

[0020] Figure 3 for Figure 1 The diagram shows the structure of the toughness testing device without its outer frame.

[0021] Figure 4 for Figure 3 The left view shown.

[0022] Figure 5 for Figure 3 The top view shown.

[0023] Explanation of reference numerals in the attached drawings: 1. Mounting frame; 11. Outer frame; 12. Mounting side plate; 13. Clamping block; 14. Limiting frame; 15. Limiting roller; 16. Guide plate; 17. Connecting rod;

[0024] 2. Guide assembly; 21. First guide mechanism; 211. Fixing block; 212. Guide frame; 213. Mounting through hole; 214. Guide roller; 22. Second guide mechanism;

[0025] 3. Tensioning assembly; 31. First tensioning mechanism; 311. Connecting seat; 312. Tensioning cylinder; 313. Connecting head; 314. Tensioning rod; 32. Second tensioning mechanism;

[0026] 4. Rewinding assembly; 41. Rewinding shaft; 42. Motor; 43. Positioning plate. Detailed Implementation

[0027] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Please refer to Figure 1 A composite material vehicle interior toughness testing device includes a mounting frame 1, a guide component 2 and a tensioning component 3 mounted on the mounting frame 1, and a winding component 4 that passes through the mounting frame 1. The vehicle interior to be tested passes through the guide component 2 and the winding component 4 in sequence. After the winding component 4 drives the vehicle interior to complete the winding, the tensioning component 3 drives the guide component 2 to abut against the mounting frame 1, thereby tensioning the vehicle interior. After tensioning, the toughness test can be performed.

[0029] Please refer to Figure 1-5 The mounting frame 1 includes an outer frame 11 and two mounting side plates 12 symmetrically arranged inside the outer frame 11. The outer frame 11 consists of a main board and side wings on both sides of the main board forming a semi-enclosed structure. The mounting direction of the mounting side plates 12 is parallel to the mounting direction of the side wings of the outer frame 11. A clamping block 13 is symmetrically arranged at the top of the two mounting side plates 12, positioned at both ends along the mounting direction of the mounting side plates 12. A connecting rod 17 connects the two mounting side plates 12, with both ends connected to the side walls of the two mounting side plates 12. Multiple connecting rods 17 are arranged between the two mounting side plates 12 to ensure connection stability. A guide plate 16 is connected to the bottom of the two mounting side plates 12, positioned away from the main board of the outer frame 11. The guide plate 16 is arranged along the horizontal plane and guides the vehicle interior trim when it enters the toughness testing device for winding. Limiting frames 14 are provided on the top of the two mounting side plates 12. The limiting frames 14 are positioned between the two clamping blocks 13 and are vertically mounted on the top of the mounting side plates 12. A limiting roller 15 is provided between the two limiting frames 14. The two ends of the limiting roller 15 are rotatably mounted on the limiting frames 14 and can rotate relative to the limiting frames 14. The height of the limiting roller 15 is higher than the top height of the mounting side plates 12.

[0030] Please refer to Figure 2-5The guide assembly 2 includes a first guide mechanism 21 and a second guide mechanism 22 symmetrically arranged about the center of the mounting frame 1. The first guide mechanism 21 and the second guide mechanism 22 are respectively installed at both ends of the mounting side plate 12. The first guide mechanism 21 and the second guide mechanism 22 have the same structure, and the installation height between the first guide mechanism 21, the limiting roller 15 and the second guide mechanism 22 gradually decreases. The first guide mechanism 21 includes a fixing block 211 connected to the connecting rod 17. The fixing block 211 is symmetrically arranged about the connecting rod 17 and has an L-shaped structure. The sidewalls of the fixing block 211 are connected to the sidewalls of the connecting rod 17 and the inner wall of the mounting side plate 12, respectively. Guide frames 212 are connected to both sides of the two fixing blocks 211, and the guide frames 212 can rotate relative to the fixing blocks 211. The guide frames 212 have mounting through holes 213, the shape of which is adapted to the fixing blocks 211. The fixing blocks 211 and the guide frames 212 are connected by inserting the fixing blocks 211 into the mounting through holes 213. The guide frame 212 is installed at the same height as the clamping block 13. When the direction of the guide frame 212 is parallel to the direction of the clamping block 13, a gap larger than the thickness of the vehicle interior trim is left between the guide frame 212 and the clamping block 13. Multiple guide rollers 214 are rotatably mounted between the two guide frames 212. The guide rollers 214 are rotatably mounted on the guide frame 212 and are spaced apart vertically. The staggered arrangement of the multiple guide rollers 214 ensures that the vehicle interior trim can be tensioned to a certain extent after passing through different guide rollers 214.

[0031] Please refer to Figure 2-5The tensioning assembly 3 includes a first tensioning mechanism 31 and a second tensioning mechanism 32 symmetrically arranged about the mounting bracket 1. The first tensioning mechanism 31 and the second tensioning mechanism 32 have the same structure. The first tensioning mechanism 31 is connected to the first guide mechanism 21 and can drive the first guide mechanism 21 to abut against the pressing block 13. The second tensioning mechanism 32 is connected to the second guide mechanism 22 and can drive the second guide mechanism 22 to abut against the pressing block 13. After the first guide mechanism 21 and the second guide mechanism 22 abut against the pressing block 13 respectively, they can press the vehicle interior trim wrapped between them, thereby ensuring that the vehicle interior trim is always in a fully tensioned state during the toughness test. The first tensioning mechanism 31 includes a connecting seat 311 installed on the side wall of the mounting side plate 12 and a tensioning cylinder 312 connected to the connecting seat 311. The tensioning cylinder 312 is arranged in a horizontal direction, and the output end of the tensioning cylinder 312 is connected to a connector 313. A tensioning rod 314 is rotatably connected to the connector 313, and the tensioning rod 314 is connected to the first guide mechanism 21. Specifically, the tension rod 314 is connected to the side wall of the guide frame 212. The extension and retraction of the tension cylinder 312 can drive the tension rod 314 to rotate relative to the connector 313. During the rotation of the tension rod 314, the guide frame 212 is simultaneously driven to rotate relative to the connector 311, so that the side wall of the guide frame 212 abuts against the side wall of the pressing block 13, pressing the vehicle interior between the guide frame 212 and the pressing block 13.

[0032] Please refer to Figure 2-5 The winding assembly 4 includes a winding shaft 41 that passes through the outer frame 11. The winding shaft 41 is rotatably mounted on the outer frame 11 and passes through the mounting side plate 12. The winding shaft 41 is located at the bottom of the first guide mechanism 21 and the second guide mechanism 22, and a motor 42 is connected to one end of the winding shaft 41. A positioning plate 43 is connected to the side wall of the outer frame 11, and the motor 42 is mounted on the positioning plate 43. The motor 42 can drive the winding shaft 41 to rotate. During the rotation of the winding shaft 41, the vehicle interior trim can be wound around the winding shaft 41 and the first guide mechanism 21 and the second guide mechanism 22.

[0033] Specifically, before the toughness test, the vehicle interior trim is first wound onto the take-up shaft 41 through the guide plate 16. The motor 42 drives the take-up shaft 41 to rotate. During this process, the vehicle interior trim is gradually passed through multiple guide rollers 214 on the first guide mechanism 21, then through the limit roller 15, and then through multiple guide rollers 214 on the second guide mechanism 22. Finally, it is rewound onto the take-up shaft 41, completing the winding of the vehicle interior trim before the toughness test.

[0034] After the vehicle interior trim is wound, motor 42 continues to drive the take-up shaft 41 to rotate, gradually tensioning the trim. Once tensioned, tension cylinder 312 extends and retracts, causing tension rod 314 to rotate relative to connector 313, simultaneously rotating guide frame 212 relative to connector seat 311. This ultimately brings the side wall of guide frame 212 into contact with the side wall of clamping block 13, pressing the vehicle interior trim between guide frame 212 and clamping block 13. This ensures that the vehicle interior trim remains fully tensioned during subsequent toughness testing, preventing insufficient tension from affecting the accuracy of the toughness test results.

[0035] The vehicle interior trim is wound onto the winding assembly 4, the first guide mechanism 21, and the second guide mechanism 22. After the vehicle interior trim is wound and tensioned by the winding assembly 4, the first tensioning mechanism 31 drives the first guide mechanism 21 to rotate and abut against the pressing block 13. The second tensioning mechanism 32 drives the second guide mechanism 22 to rotate and abut against the pressing block 13, thus pressing the vehicle interior trim and ensuring that the vehicle interior trim is always in a fully tensioned state during the subsequent toughness test, so as to avoid the accuracy of the toughness test results being affected by insufficient tension of the vehicle interior trim.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] It should be understood that the terms "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A composite vehicle interior toughness testing apparatus, comprising: The system includes a mounting frame (1), a guide assembly (2) and a tensioning assembly (3) mounted on the mounting frame (1), and a winding assembly (4) that passes through the mounting frame (1). The mounting frame (1) includes an outer frame (11) and two mounting side plates (12) symmetrically arranged inside the outer frame (11). The tops of the two mounting side plates (12) are symmetrically provided with clamping blocks (13), and a connecting rod (17) connects the two mounting side plates (12). The guide assembly (2) includes components about the center of the mounting frame (1). The tensioning assembly (3) includes a first tensioning mechanism (31) and a second tensioning mechanism (32) symmetrically arranged about the mounting frame (1). The first tensioning mechanism (31) is connected to the first guidance mechanism (21) and can drive the first guidance mechanism (21) to abut against the pressing block (13). The second tensioning mechanism (32) is connected to the second guidance mechanism (22) and can drive the second guidance mechanism (22) to abut against the pressing block (13).

2. The composite material vehicle interior toughness detection device according to claim 1, characterized in that: The first guide mechanism (21) and the second guide mechanism (22) have the same structure. The first guide mechanism (21) includes a fixing block (211) connected to the connecting rod (17). The fixing block (211) is symmetrically arranged about the connecting rod (17). Guide frames (212) are connected to both sides of the two fixing blocks (211).

3. The composite material vehicle interior toughness testing device according to claim 2, characterized in that: The guide frame (212) is provided with an installation through hole (213), the shape of which is adapted to the fixed block (211), and multiple guide rollers (214) are rotatably arranged between the two guide frames (212).

4. The composite material vehicle interior toughness detection device of claim 3, wherein: The first tensioning mechanism (31) and the second tensioning mechanism (32) have the same structure. The first tensioning mechanism (31) includes a connecting seat (311) installed on the side wall of the mounting side plate (12) and a tensioning cylinder (312) connected to the connecting seat (311). The output end of the tensioning cylinder (312) is connected to a connector (313).

5. The composite material vehicle interior toughness testing device according to claim 4, characterized in that: A tensioning rod (314) is rotatably connected to the connector (313), and the tensioning rod (314) is connected to the first guide mechanism (21).

6. The composite material vehicle interior toughness detection device of claim 1, wherein: The winding assembly (4) includes a winding shaft (41) that passes through the outer frame (11). The winding shaft (41) is rotatably mounted on the outer frame (11), and one end of the winding shaft (41) is connected to a motor (42).

7. The composite material vehicle interior toughness detection device of claim 6, wherein: The bottom of the two mounting side plates (12) is connected to a guide plate (16), the top of the two mounting side plates (12) is provided with a limit frame (14), and a limit roller (15) is provided between the two limit frames (14).

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