Strength detection device for automobile fender production
By designing a strength testing device for automobile fender production that includes a controller, clamping block, heating element, electric push rod, and water spray system, the problem of existing technologies being unable to fully reflect the overall strength of the fender has been solved. This enables comprehensive testing under different environmental conditions, ensuring product quality and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-03
AI Technical Summary
Existing fender strength testing devices cannot fully reflect the overall strength and durability of fenders under different environmental conditions such as high temperatures, and single impact testing has significant limitations.
A strength testing device for automobile fender production was designed, comprising a controller, clamping block, heating tube, electric push rod, impact block, water pump and water spray system, which can simulate impact tests under different temperature and humidity conditions to comprehensively evaluate the strength of the fender.
It enables comprehensive and accurate strength testing under different environmental conditions, ensuring product quality and safety, while saving water resources and improving the comprehensiveness and reliability of testing.
Smart Images

Figure CN224081389U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of strength testing technology, and in particular to a strength testing device for automobile fender production. Background Technology
[0002] The fender, also known as the wheel arch, is an important body panel on both motor vehicles and non-motor vehicles. Named for its resemblance to a bird's wing on early models, this component not only enhances the vehicle's aesthetics but also significantly impacts its performance. Fenders optimize aerodynamics, reduce wind resistance, and protect the wheels and suspension system from environmental influences, thereby improving driving safety and stability. Furthermore, modern fender designs incorporate lightweight materials to further improve fuel efficiency and environmental friendliness. Therefore, the fender plays an indispensable role in both aesthetics and function.
[0003] Existing fender strength testing devices typically use clamping arms to firmly hold the sides of the fender, ensuring that the fender remains stationary during the test. Then, an impact head is driven by an impact hydraulic rod to perform an impact test on the car fender to assess its impact resistance. However, under different environmental conditions such as high temperature, relying solely on impact testing cannot fully reflect the overall strength and durability of the fender, and has significant limitations.
[0004] Therefore, it is necessary to design a strength testing device for automobile fender production to solve the above-mentioned technical problems. Utility Model Content
[0005] To overcome the limitations of single impact testing in different environments, the technical problem of this utility model is to provide a strength testing device for automobile fender production.
[0006] The technical implementation scheme of this utility model is as follows: A strength testing device for automobile fender production includes a shell, a controller, a protective door, a support rod, an arc plate, an electric slide rail, a clamping block, a heating tube, a fixing block, a disc, an electric push rod, and an impact block. The controller is installed at the front of the shell, and the support rod is slidably connected inside the shell. The protective door is fixedly connected to the front side of the support rod and is engaged with the shell. The arc plate is fixedly connected to the left side of the support rod. The electric slide rail is symmetrically installed at the front and rear of the left side of the support rod. Two clamping blocks slide on the electric slide rail and are electrically connected to the controller. The heating tube is installed inside the shell and is electrically connected to the controller. The fixing block is fixedly connected to the bottom of the shell. A disc is rotatably connected to the fixing block. An electric push rod is installed eccentrically on the disc and is electrically connected to the controller. An impact block is fixedly connected to the output shaft of the electric push rod.
[0007] In a preferred embodiment of the present invention, a rubber block is also included. A rubber block is fixedly connected to the upper part of the arc plate, and rubber blocks are fixedly connected to the sides of the two clamping blocks on the same electric slide rail that are close to each other.
[0008] In a preferred embodiment of this utility model, the bottom of the inner shell is inclined.
[0009] In a preferred embodiment of the present invention, explosion-proof glass is also included, and the explosion-proof glass is fixedly connected to the front side of the outer shell.
[0010] In a preferred embodiment of the present invention, the device further includes a gear ring, an electric block, and a rack. The gear ring is fixedly connected to the disc, the electric block is slidably connected to the fixed block, the electric block is electrically connected to the controller, and the rack is fixedly connected to the right side of the electric block, with the gear ring and the rack meshing with each other.
[0011] In a preferred embodiment of this utility model, it further includes a water pump, a water storage tank, a return water pipe, a filter screen, a spray pipe, and spray nozzles. The water pump is installed at the rear of the housing. The water pump is connected to and communicates with the water storage tank on the left side. The water storage tank is connected to and communicates with the return water pipe on the left side. The other end of the return water pipe is connected to and communicates with the lower back of the housing and is fixedly attached to the filter screen. The spray pipe is fixedly connected to the upper part of the housing and is connected to and communicates with the water pump. Several spray nozzles are connected to and communicate with the spray pipe.
[0012] The beneficial effects of this utility model are as follows: 1. This utility model controls the clamping block to accurately clamp the fender through the controller, and then controls the electric push rod to drive the impact block to quickly impact the fender to test its impact resistance. Subsequently, the heating tube is activated to simulate different temperature conditions to evaluate the strength performance of the fender in temperature cycling. The fender strength test is carried out comprehensively and accurately to ensure product quality and reliability and provide a solid guarantee for automobile safety.
[0013] 2. This utility model uses a controller to start an electric block, which drives the rack to move back and forth. This causes the gear ring meshing with the rack to drive the disc, electric push rod, and impact block to rotate back and forth in an arc, performing impact tests on different positions of the fender, improving the comprehensiveness of the test and detecting the strength of the fender at various angles and positions.
[0014] 3. This utility model starts the water pump through the controller, which delivers water from the water storage tank to the spray pipe and sprays it evenly from the nozzle to simulate a rainy environment in order to test the strength of the fender under different humidity conditions. The bottom of the outer shell is tilted to the left to guide the water flow to concentrate to the left. After impurities are filtered by the filter screen, the water flows back to the water storage tank through the return water pipe to realize the recycling of water, effectively simulate the rainy environment, save water resources, and comprehensively evaluate the strength of the fender under humid conditions. Attached Figure Description
[0015] Figure 1This is a three-dimensional structural diagram of some parts of this utility model.
[0016] Figure 2 This is a three-dimensional structural diagram of some parts of this utility model, such as the support rod, fixing block, and disc.
[0017] Figure 3 This is a three-dimensional structural diagram of some parts of this utility model, such as the outer shell, support rod, and clamping block.
[0018] Figure 4 This is a three-dimensional structural diagram of some parts of this utility model, such as the fixing block, the disc, and the impact block.
[0019] Figure 5 This is a three-dimensional structural diagram of some parts of this utility model, such as the disc, gear ring, and rack.
[0020] Figure 6 This is a three-dimensional structural diagram of some parts of the present invention, such as the water pump, water storage tank, and return water pipe.
[0021] The components in the attached diagram are labeled as follows: 1. Outer shell; 101. Controller; 102. Protective door; 103. Explosion-proof glass; 2. Support rod; 201. Curved plate; 3. Electric slide rail; 4. Clamping block; 5. Heating tube; 6. Fixing block; 7. Disc; 8. Electric push rod; 9. Impact block; 10. Rubber block; 11. Gear ring; 12. Electric block; 13. Rack; 14. Water pump; 15. Water storage tank; 1501. Return water pipe; 1502. Filter screen; 1503. Spray pipe; 1504. Spray head. Detailed Implementation
[0022] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.
[0023] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the device includes a housing 1, a controller 101, a protective door 102, a support rod 2, an arc-shaped plate 201, an electric slide rail 3, a clamping block 4, a heating tube 5, a fixing block 6, a disc 7, an electric push rod 8, and an impact block 9. The controller 101 is screwed onto the front left side of the housing 1. The support rod 2 is slidably connected to the inside right side of the housing 1. The protective door 102 is welded to the front of the support rod 2 and is snapped into the housing 1. An arc-shaped plate 201 is welded to the upper left side of the support rod 2. The electric slide rail 3 is symmetrically screwed onto the left side of the support rod 2. Two clamping blocks 4 slide on each of the electric slide rails 3, and the clamping blocks 4 are electrically connected to the controller 101. Inside the housing 1... A heating tube 5 is installed on the right side by screws and is electrically connected to the controller 101. A fixing block 6 is welded to the bottom of the inner shell 1. A disc 7 is rotatably connected to the fixing block 6. An electric push rod 8 is installed on the disc 7 at the eccentric part by screws. The electric push rod 8 is electrically connected to the controller 101. An impact block 9 is welded to the output shaft of the electric push rod 8. A rubber block 10 is also included. A rubber block 10 is pasted on the top of the arc plate 201. Rubber blocks 10 are pasted on the sides of the two clamping blocks 4 on the same electric slide rail 3 that are close to each other. An explosion-proof glass 103 is also included. An explosion-proof glass 103 is glued to the front of the outer shell 1. The bottom of the inner shell 1 is inclined with the left side lower than the right side.
[0024] When using this device to test the strength of a car fender, first pull the handle forward to pull out the protective door 102, which in turn pulls out the support rod 2, the curved plate 201, the electric slide rail 3, and the clamping block 4. Next, place the car fender to be tested on the curved plate 201. Then, activate the clamping block 4 via the controller 101. The clamping block 4 moves along the corresponding electric slide rail 3 and approaches each other, thus firmly clamping the car fender. Rubber blocks 10 are provided on the contact surfaces of the clamping block 4 and the curved plate 201 to protect the fender surface from scratches. After clamping, push the protective door 102 backward to push the support rod 2, the curved plate 201, the electric slide rail 3, and the clamping block 4, along with the clamped fender, back into the housing 1. Then, activate the electric push rod 8 via the controller 101. The output shaft of the electric push rod 8 drives the impact block 9 to quickly impact the car fender. The fender is impacted to test its impact resistance. Then, the heating element 5 is activated by the controller 101 to simulate impact environments under different temperature conditions to evaluate the fender's strength performance in temperature cycling. During the test, the interior of the outer shell 1 can be observed through the explosion-proof glass 103 to monitor various details in real time and ensure the accuracy and reliability of the test. After the test is completed, the electric push rod 8 and the heating element 5 are turned off by the controller 101. Pulling the handle forward again pulls out the support rod 2, the arc plate 201, the electric slide rail 3, the clamping block 4, and the tested fender together. Finally, the clamping block 4 is operated by the controller 101 to move the two corresponding clamping blocks 4 away from each other, releasing the fender and removing it. This completes the strength test of the car fender.
[0025] like Figure 1 and Figure 5 As shown, it also includes a gear ring 11, an electric block 12 and a rack 13. The gear ring 11 is welded on the disc 7, and the electric block 12 is slidably connected to the fixed block 6. The electric block 12 is electrically connected to the controller 101. The rack 13 is welded to the right side of the electric block 12, and the gear ring 11 and the rack 13 mesh with each other.
[0026] To further test the strength of the fender, the electric block 12 is activated by the controller 101. The electric block 12 drives the rack 13 to move back and forth. When the rack 13 moves, the gear ring 11 that meshes with it drives the disk 7 to rotate in an arc. During this process, the electric push rod 8 and the impact block 9 also rotate, thereby conducting impact tests on different positions of the fender. This more realistically simulates various impact situations that may be encountered in actual use, ensuring that the strength of the fender at various angles and positions is fully tested.
[0027] like Figure 1 and Figure 6As shown, it also includes a water pump 14, a water storage tank 15, a return water pipe 1501, a filter screen 1502, a spray pipe 1503, and a nozzle 1504. The water pump 14 is installed on the upper back of the outer casing 1 by screws. The input end of the water pump 14 on the left side is connected to and connected to the water storage tank 15. The return water pipe 1501 is connected to and connected to the left side of the water storage tank 15. The other end of the return water pipe 1501 is connected to and connected to the lower back of the outer casing 1, and the filter screen 1502 is fixedly attached thereto. The spray pipe 1503 is welded to the upper inside of the outer casing 1, and the spray pipe 1503 is connected to and connected to the output end of the water pump 14. Fifteen nozzles 1504 are connected to and connected to the spray pipe 1503.
[0028] During the simulated rainy weather humidity collision test, the water tank 15 is first filled with water. Then, the water pump 14 is started by the controller 101, so that the water in the water tank 15 is transported to the water spray pipe 1503 by the water pump 14, and the water is sprayed evenly by the nozzle 1504 to simulate the rainy environment. At the same time, the output shaft of the electric push rod 8 drives the impact block 9 to quickly impact the fender of the car to test the strength of the fender under different humidity conditions. The bottom surface of the inner shell 1 is inclined from left to right, which guides the water flow to concentrate on the left side. After the impurities are filtered by the filter screen 1502, the water flows back to the water tank 15 through the return water pipe 1501 to realize water recycling. This setting can not only effectively simulate the rainy weather environment, but also ensure water quality and save water resources.
[0029] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.
Claims
1. A strength testing device for automobile fender production, characterized in that, The utility model provides an improved design, including shell (1), controller (101), protective door (102), support rod (2), arc plate (201), electric slide rail (3), clamping block (4), heating pipe (5), fixed block (6), disc (7), electric push rod (8) and impact block (9), the front of shell (1) is installed with controller (101), the inside of shell (1) is connected with support rod (2) slidingly, the left side of support rod (2) is fixedly connected with arc plate (201), and the front and back symmetry of support rod (2) left part is installed with electric slide rail (3), and the left and right two clamping blocks (4) are slid on electric slide rail (3), and clamping block (4) is electrically connected with controller (101), heating pipe (5) is installed in the inside of shell (1), and heating pipe (5) is electrically connected with controller (101), and the inside bottom of shell (1) is fixedly connected with fixed block (6), and fixed block (6) is rotatably connected with disc (7), and electric push rod (8) is installed on the eccentricity of disc (7), and electric push rod (8) is electrically connected with controller (101), and impact block (9) is fixedly connected on the output shaft of electric push rod (8).
2. The strength testing device for a fender of an automobile according to claim 1, wherein Still including rubber block (10), arc plate (201) upper portion is fixedly connected with rubber block (10), and the same electric slide rail (3) on two clamping blocks (4) sides close to each other are all fixedly connected with rubber block (10).
3. The strength testing apparatus for a fender of an automobile according to claim 2, wherein The inside bottom of shell (1) is inclined.
4. The strength testing apparatus for a fender of an automobile according to claim 3, wherein Still including explosion -proof glass (103), the front side of shell (1) is fixedly connected with explosion -proof glass (103).
5. The strength testing apparatus for a fender of an automobile according to claim 4, wherein Still including gear ring (11), electric block (12) and rack (13), disc (7) is fixedly connected with gear ring (11), electric block (12) is slidably connected on fixed block (6), electric block (12) is electrically connected with controller (101), rack (13) is fixedly connected on the right side of electric block (12), and gear ring (11) and rack (13) are engaged with each other.
6. The strength testing apparatus for a fender of an automobile according to claim 5, wherein Still including water pump (14), water storage tank (15), backwater pipe (1501), filter screen (1502), water spraying pipe (1503) and spray head (1504), water pump (14) is installed at the back of shell (1), water storage tank (15) is connected and communicated on the left side of water pump (14), backwater pipe (1501) is connected and communicated to the lower side of the back of shell (1) on the other end, and filter screen (1502) is fixedly connected, water spraying pipe (1503) is fixedly connected in the upper portion of shell (1), and water spraying pipe (1503) is connected and communicated with water pump (14), and a plurality of spray heads (1504) are connected and communicated on water spraying pipe (1503).