New energy vehicle roof cover polymer trim ultraviolet aging test equipment

Abstract

The utility model relates to the technical field of aging test equipment discloses a new energy car roof high polymer moulding strip ultraviolet light aging test equipment, including the support bottom plate, the top fixed coupling of support bottom plate has the support rod, the top fixed coupling of support rod has the fixed plate, the bottom fixed coupling of fixed plate has the ultraviolet lamp, the utility model discloses a drive motor drives the transmission rod to drive the first bevel gear and the second bevel gear meshing drive, and further bidirectional screw rod rotating structure operation drives two moving blocks along the limit rod synchronous opposite sliding generation, thereby realizes the beneficial effect that the high polymer moulding strip of different thickness and curvature is adaptively clamped and fixed, the mechanism adopts the bidirectional screw thread design cooperation bevel gear reversing function, makes both sides clamping force automatic balance distribution, guarantees the thin -walled part without deformation damage, avoids the stress concentration problem that the traditional single -sided pressure leads to, has improved the clamping efficiency and test accuracy significantly.

Description

Technical Field

[0001] This utility model relates to the field of aging testing equipment technology, and in particular to an ultraviolet aging testing device for a polymer trim strip on the roof of a new energy vehicle. Background Technology

[0002] With the rapid development of the new energy vehicle industry, consumers have put forward higher requirements for vehicle appearance, comfort and durability. As an important part of the vehicle appearance, the polymer trim strip of the roof not only carries the aesthetics and functionality, but also needs to have strong weather resistance, UV resistance and anti-aging ability. Therefore, rigorous testing of the UV aging performance of the polymer trim strip of the roof has become a key link to ensure its long-term stability and appearance quality.

[0003] Traditional ultraviolet aging test devices mostly adopt a static fixed irradiation mode, which is not convenient for simulating the dynamic changes of the solar altitude angle. This results in uneven light exposure of the sample and only unidirectional aging, making it difficult to truly reflect the vehicle's operating conditions in different latitude regions. At the same time, the clamping mechanism is mostly a manual screw lifting structure, which is not only inefficient to operate, but also prone to deformation and warping of thin-walled trim strips due to unilateral force application, affecting the accuracy of the test. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an ultraviolet aging test device for polymer trim strips on the roof of new energy vehicles.

[0005] This utility model is achieved using the following technical solution: a UV aging test device for polymer trim strips on the roof of a new energy vehicle, comprising a supporting base plate, a supporting rod fixedly connected to the top of the supporting base plate, a fixing plate fixedly connected to the top of the supporting rod, and a UV lamp fixedly connected to the bottom of the fixing plate, and further comprising:

[0006] An adjustment mechanism, comprising a support plate fixedly connected to the top of a support base plate, a fixed column rotatably connected inside the support plate, and a rotating block fixedly connected to the left side of the fixed column;

[0007] A fixing mechanism includes a movable block slidably connected inside a rotating block, a clamping block fixedly connected to the top of the movable block, and an anti-slip pad fixedly connected to the front of the clamping block.

[0008] As a further improvement to the above solution, a fixed housing is fixedly connected to the right side of the support plate, a servo motor is fixedly connected to the front of the fixed housing, and a worm gear is fixedly connected to the output end of the servo motor.

[0009] By adding a fixed outer shell and integrating a servo motor on the right side of the support plate, precise drive control of the worm gear is achieved. This structure modularly separates the power source and transmission system, reducing mechanical losses and providing a stable torque output foundation, thus creating conditions for the subsequent implementation of angle adjustment functions.

[0010] As a further improvement to the above solution, the worm is rotatably connected inside the fixed housing, and a worm wheel is fixedly connected to the outside of the fixed column, with the worm wheel meshing with the worm.

[0011] By utilizing the meshing of worm gear and worm wheel, a low-speed, high-torque transmission link is constructed. This highly self-locking transmission characteristic ensures that the fixed column will not shift due to external interference after positioning, significantly improving the stability of multi-angle irradiation.

[0012] As a further improvement to the above solution, a transmission housing is fixedly connected to the front of the rotating block, a drive motor is fixedly connected to the right side of the transmission housing, and a transmission rod is fixedly connected to the output end of the drive motor.

[0013] As a further improvement to the above solution, the transmission rod is rotatably connected inside the transmission housing, a first bevel gear is fixedly connected to the outside of the transmission rod, and a bidirectional threaded rod is rotatably connected inside the rotating block.

[0014] As a further improvement to the above solution, a second bevel gear is fixedly connected to the outside of the bidirectional threaded rod, the second bevel gear meshing with the first bevel gear, and the moving block is threadedly connected to the outside of the bidirectional threaded rod.

[0015] Through the above technical solution, the meshing of the second bevel gear and the first bevel gear realizes the horizontal conversion of the rotation direction, cleverly transforming unidirectional input into bidirectional output, driving the two moving blocks to move in opposite directions, and simplifying the complexity of the control system.

[0016] As a further improvement to the above solution, two movable blocks are provided, and the two movable blocks are respectively threaded to the outside of the bidirectional threaded rod in different thread directions. The rotating block is fixedly connected to the inside of the limiting rod, and the movable block is slidably connected to the outside of the limiting rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention utilizes a drive motor to power a transmission rod, which in turn drives the first and second bevel gears to mesh and rotate. This, in turn, causes the bidirectional threaded rod to rotate, resulting in two moving blocks sliding synchronously towards each other along a limiting rod. This achieves the beneficial effect of adaptive clamping and fixing of polymer trim strips with different thicknesses and curvatures. The mechanism employs a bidirectional threaded design combined with the bevel gear reversing function, which automatically balances the clamping force on both sides. This ensures that thin-walled parts are not deformed or damaged, and avoids the stress concentration problem caused by traditional unilateral pressure, significantly improving clamping efficiency and testing accuracy.

[0019] This invention utilizes a servo motor to drive a worm gear and worm wheel for precision transmission, enabling a fixed column to rotate a rotating block. This structure allows the tested trim strip to undergo multi-angle dynamic exposure under ultraviolet light, achieving the beneficial effect of accelerated aging testing that simulates changes in the angle of sunlight incidence in a real environment. This rotating mechanism, combined with the worm gear transmission system, ensures that each area of ​​the sample surface receives a uniform cumulative irradiation dose, effectively shortening the experimental cycle to the time required for conventional static testing. Simultaneously, it accurately reproduces the complex changes in lighting conditions caused by geographical differences during vehicle operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;

[0023] Figure 4 This is a cross-sectional view of the adjustment mechanism of this utility model;

[0024] Figure 5 This utility model Figure 4 Enlarged view of section A in the middle.

[0025] Explanation of key symbols:

[0026] 1. Support base plate; 2. Adjustment mechanism; 3. Fixing mechanism; 11. Support rod; 12. Fixing plate; 13. Ultraviolet lamp; 201. Support plate; 202. Fixing shell; 203. Servo motor; 204. Worm gear; 205. Fixing column; 206. Worm wheel; 207. Rotating block; 301. Transmission shell; 302. Drive motor; 303. Transmission rod; 304. First bevel gear; 305. Bidirectional threaded rod; 306. Second bevel gear; 307. Moving block; 308. Clamping block; 309. Anti-slip pad; 3010. Limiting rod. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example:

[0029] Please combine Figure 1-5 This embodiment of a UV aging test device for polymer trim strips on the roof of a new energy vehicle includes a supporting base plate 1, a supporting rod 11 fixedly connected to the top of the supporting base plate 1, a fixing plate 12 fixedly connected to the top of the supporting rod 11, and a UV lamp 13 fixedly connected to the bottom of the fixing plate 12. It also includes:

[0030] Adjustment mechanism 2 includes a support plate 201 fixedly connected to the top of the support base plate 1, a fixed column 205 rotatably connected inside the support plate 201, and a rotating block 207 fixedly connected to the left side of the fixed column 205.

[0031] The fixing mechanism 3 includes a movable block 307 that is slidably connected inside the rotating block 207. A clamping block 308 is fixedly connected to the top of the movable block 307, and an anti-slip pad 309 is fixedly connected to the front of the clamping block 308.

[0032] A fixed housing 202 is fixedly connected to the right side of the support plate 201, a servo motor 203 is fixedly connected to the front of the fixed housing 202, and a worm gear 204 is fixedly connected to the output end of the servo motor 203.

[0033] The worm 204 is rotatably connected inside the fixed housing 202, and the worm wheel 206 is fixedly connected to the outside of the fixed column 205. The worm wheel 206 meshes with the worm 204.

[0034] The servo motor 203 is started to drive the worm gear 204 to rotate inside the fixed housing 202. When the worm gear 204 rotates, it can drive the worm wheel 206 to rotate, thereby causing the worm wheel 206 to drive the fixed column 205 inside to rotate, and causing the worm wheel 206 to drive the rotating block 207 to rotate.

[0035] A transmission housing 301 is fixedly connected to the front of the rotating block 207, a drive motor 302 is fixedly connected to the right side of the transmission housing 301, and a transmission rod 303 is fixedly connected to the output end of the drive motor 302.

[0036] The transmission rod 303 is rotatably connected inside the transmission housing 301. The first bevel gear 304 is fixedly connected to the outside of the transmission rod 303. The bidirectional threaded rod 305 is rotatably connected inside the rotating block 207.

[0037] The bidirectional threaded rod 305 is externally fixedly connected to a second bevel gear 306, which meshes with the first bevel gear 304. The moving block 307 is threadedly connected to the outside of the bidirectional threaded rod 305.

[0038] There are two movable blocks 307. The two movable blocks 307 are threadedly connected to the outside of the bidirectional threaded rod 305 in different thread directions. The rotating block 207 is fixedly connected to the limit rod 3010 inside, and the movable blocks 307 are slidably connected to the outside of the limit rod 3010.

[0039] The drive motor 302 can be started to drive the transmission rod 303 to rotate inside the transmission housing 301, and drive the first bevel gear 304 outside it to rotate. At the same time, it drives the second bevel gear 306 to rotate synchronously, and the second bevel gear 306 drives the bidirectional threaded rod 305 inside it to rotate, so that the moving blocks 307 move closer to each other, so that the moving blocks 307 slide along the limit rod 3010 inside the rotating block 207, and contact the trim strip through the anti-slip pad 309 on the clamping block 308, thereby fixing the trim strip.

[0040] The implementation principle of the ultraviolet aging test device for polymer trim strips on the roof of a new energy vehicle in this embodiment is as follows: When in use, the trim strip is first placed between the clamping blocks 308. At this time, the drive motor 302 can be started to drive the transmission rod 303 to rotate inside the transmission housing 301. At this time, the rotation of the transmission rod 303 can drive the first bevel gear 304 outside to rotate. Since the first bevel gear 304 and the second bevel gear 306 mesh with each other, when the first bevel gear 304 rotates, it will drive the second bevel gear 306 to rotate synchronously, and the second bevel gear 306 will drive the bidirectional threaded rod 305 inside to rotate, so that the moving blocks 307, which are respectively threaded to the outside of the bidirectional threaded rod 305 in different thread directions, move closer to each other, so that the moving blocks 307 slide along the limiting rod 3010 inside the rotating block 207, and contact the trim strip through the anti-slip pad 309 on the clamping block 308, thereby fixing the trim strip.

[0041] After fixing, the ultraviolet lamp 13 can be turned on to irradiate the trim strip for testing. During the test, the servo motor 203 can be turned on to drive the worm gear 204 to rotate inside the fixed housing 202. Since the worm gear 204 and the worm wheel 206 are meshed with each other, when the worm gear 204 rotates, it can drive the worm wheel 206 to rotate, thereby driving the fixed column 205 inside the worm wheel 206 to rotate, and the worm wheel 206 drives the rotating block 207 to rotate, thereby driving the trim strip to rotate and adjusting the irradiation angle of the trim strip to simulate the change of the solar incidence angle in different latitude regions.

[0042] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A UV aging test device for a polymer trim strip on the roof of a new energy vehicle, comprising a supporting base plate (1), wherein a supporting rod (11) is fixedly connected to the top of the supporting base plate (1), a fixing plate (12) is fixedly connected to the top of the supporting rod (11), and a UV lamp (13) is fixedly connected to the bottom of the fixing plate (12), characterized in that, Also includes: Adjustment mechanism (2), the adjustment mechanism (2) includes a support plate (201) fixedly connected to the top of the support base plate (1), a fixed column (205) is rotatably connected inside the support plate (201), and a rotating block (207) is fixedly connected to the left side of the fixed column (205). The fixing mechanism (3) includes a movable block (307) that is slidably connected inside the rotating block (207). A clamping block (308) is fixedly connected to the top of the movable block (307), and an anti-slip pad (309) is fixedly connected to the front of the clamping block (308).

2. The ultraviolet aging testing equipment for polymer trim strips on the roof of a new energy vehicle as described in claim 1, characterized in that: A fixed housing (202) is fixedly connected to the right side of the support plate (201), a servo motor (203) is fixedly connected to the front of the fixed housing (202), and a worm gear (204) is fixedly connected to the output end of the servo motor (203).

3. The ultraviolet aging test equipment for polymer trim strips on the roof of a new energy vehicle as described in claim 2, characterized in that: The worm (204) is rotatably connected inside the fixed housing (202), and a worm wheel (206) is fixedly connected to the outside of the fixed column (205), and the worm wheel (206) meshes with the worm (204).

4. The ultraviolet aging test equipment for polymer trim strips on the roof of a new energy vehicle as described in claim 1, characterized in that: The front of the rotating block (207) is fixedly connected to a transmission housing (301), the right side of the transmission housing (301) is fixedly connected to a drive motor (302), and the output end of the drive motor (302) is fixedly connected to a transmission rod (303).

5. The ultraviolet aging test equipment for polymer trim strips on the roof of a new energy vehicle as described in claim 4, characterized in that: The transmission rod (303) is rotatably connected inside the transmission housing (301), and a first bevel gear (304) is fixedly connected to the outside of the transmission rod (303). A bidirectional threaded rod (305) is rotatably connected inside the rotating block (207).

6. The ultraviolet aging test equipment for polymer trim strips on the roof of a new energy vehicle as described in claim 5, characterized in that: The bidirectional threaded rod (305) is externally fixedly connected to a second bevel gear (306), which meshes with the first bevel gear (304). The moving block (307) is threadedly connected to the outside of the bidirectional threaded rod (305).

7. The ultraviolet aging test equipment for polymer trim strips on the roof of a new energy vehicle as described in claim 6, characterized in that: Two movable blocks (307) are provided. The two movable blocks (307) are respectively threaded to the outside of the bidirectional threaded rod (305) in different thread directions. The rotating block (207) is fixedly connected to the inside of the limiting rod (3010), and the movable block (307) is slidably connected to the outside of the limiting rod (3010).

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