Automobile part coating rain test device

By designing a rain test device for automotive component coatings that includes a test chamber, spray cover, spray assembly, and adjustment assembly, the problems of blind spots in detection caused by static placement and lack of dynamic adjustment of the clamping device are solved. It realizes all-round spraying and multi-angle simulation, and improves the detection accuracy of coating waterproof performance.

CN224151904UActive Publication Date: 2026-04-21JIANGSU ZHONGJI TESTING TECH SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU ZHONGJI TESTING TECH SERVICE CO LTD
Filing Date
2025-06-18
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing automotive component coating rain test equipment suffers from blind spots in complex curved areas due to its static placement method, and the clamping device lacks dynamic adjustment function, making it difficult to simulate the working environment in which components are subjected to multi-angle rain impacts during actual vehicle operation.

Method used

A device was designed that includes a test chamber, a spray cover, a spray assembly, a control panel, and a lifting cylinder. Combined with an adjustment assembly and an electric telescopic rod, it achieves all-round spray coverage and dynamic angle adjustment of the components. The electric telescopic rod and the adjustment motor drive the clamping plate to rotate at multiple angles to simulate actual rain impact conditions.

Benefits of technology

It achieves comprehensive spray coverage of automotive parts, especially effective testing of complex curved surfaces, and can simulate multi-angle rain impact conditions in actual vehicle operation, thus improving the accuracy of coating waterproof performance verification.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile part coating raining test device, which comprises a device main body, the device main body comprises a test box, a spraying cover, a spraying assembly, a control panel and a lifting cylinder, the spraying cover is located at the upper end of the test box, the spraying assembly is located at the rear side of the test box, the lifting cylinder is located in the middle of the test box, and the control panel is located at the upper end of the test box. The output end of the lifting air cylinder is connected with a containing disc. The adjusting assemblies are arranged on the two sides of the test box and comprise supporting frames arranged on the outer side of the test box, adjusting motors are installed on the outer sides of the supporting frames, and the problems that due to a static placement mode, the outer surfaces of the parts cannot be sprayed and covered in all directions, and particularly, detection blind areas are likely to be formed on complex curved surfaces can be solved; secondly, an existing clamping device lacks a dynamic adjusting function, and it is difficult to simulate the working condition environment that parts of a vehicle bear multi-angle rainwater impact in actual operation.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a rain test device for automotive parts coatings. Background Technology

[0002] Automotive component coatings are surface treatment technologies used to protect and enhance the performance of automotive parts. Their main functions include corrosion resistance, wear resistance, high-temperature resistance, and aesthetic enhancement. Common coating materials include epoxy resins, polyurethane, and ceramic coatings, and processes encompass electrophoretic coating, powder coating, and more. Coatings are widely used in engines, chassis, transmission systems, and body structural components, effectively extending component lifespan and improving overall vehicle safety.

[0003] Furthermore, the coating rain test is a key step in verifying the waterproof performance of components. Currently, most test devices adopt a fixed platform structure, where components are laid flat in the test area and then sprayed with water in one direction by a top spray system. This structure has certain shortcomings. First, the static placement method makes it impossible to achieve all-round spray coverage on the outer surface of the components, especially complex curved surfaces, which are prone to forming blind spots in the test. Second, the existing clamping device lacks dynamic adjustment function, making it difficult to simulate the working environment in which components are subjected to multi-angle rain impacts during actual vehicle operation. Utility Model Content

[0004] This invention provides a rain test device for automotive parts coatings, which can solve the problem that static placement methods cannot achieve all-round spray coverage of the outer surface of parts, especially complex curved surfaces that are prone to forming blind spots in the test; secondly, existing clamping devices lack dynamic adjustment functions, making it difficult to simulate the working environment in which parts are subjected to multi-angle rain impacts during actual vehicle operation.

[0005] This utility model provides a rain test device for automotive parts coatings, comprising:

[0006] The main body of the device includes a test chamber, a spray cover, a spray assembly, a control panel, and a lifting cylinder. The spray cover is located at the top of the test chamber, the spray assembly is located at the rear of the test chamber, and the lifting cylinder is located in the middle of the test chamber. The output end of the lifting cylinder is connected to a placement tray.

[0007] An adjustment assembly is located on both sides of the test chamber, including a support frame located on the outside of the test chamber, and an adjustment motor installed on the outside of the support frame. The output end of the adjustment motor is connected to a pulley. A rotating hole is opened in the middle of the test chamber, and an electric telescopic rod is installed inside the rotating hole. A pulley and a pressure sensor are respectively connected to the two ends of the electric telescopic rod. An auxiliary frame is provided on one side of the pressure sensor, and a clamping plate is installed inside the auxiliary frame.

[0008] In a rain test device for automotive parts coating according to one embodiment of the present invention, a hinge is provided at the connection between the test box and the spray cover, and a handle is installed on the top of the spray cover, and the spray cover is a transparent structure.

[0009] In a rain test device for automotive parts coating according to one embodiment of the present invention, the spraying assembly includes a water tank fixed to one side of the test box, and a water pump is installed at the upper end of the water tank. The water pump is electrically connected to the control panel.

[0010] In a rain test device for automotive parts coating according to one embodiment of the present invention, the output end of the water pump is connected to a hose, the inside of the spray cover is equipped with a main pipe that communicates with the hose, and the middle part of the main pipe is connected to a secondary pipe.

[0011] In a rain test device for automotive parts coating according to one embodiment of the present invention, the number of the secondary tubes is three groups arranged in an array, and the secondary tubes have an arc-shaped structure. Spray nozzles are installed at the bottom of both the secondary tubes and the main tube, and the number of spray nozzles is several groups arranged in an array.

[0012] In a rain test device for automotive parts coating according to one embodiment of the present invention, control buttons and a display screen are installed on the outside of the control panel, and a control circuit board and a battery are installed inside the control panel.

[0013] In a rain test device for automotive parts coating according to one embodiment of the present invention, the output end of the lifting cylinder is fixedly connected to the placement plate, and an anti-slip strip is fixedly connected to the top of the placement plate, and the anti-slip strip is made of rubber.

[0014] In a rain test device for automotive parts coating according to an embodiment of the present invention, the number of support frames is two sets and they are symmetrically distributed. The output end of the adjusting motor is fixedly connected to pulley one, and a transmission belt is connected between pulley one and pulley two.

[0015] In a rain test device for automotive parts coating according to one embodiment of the present invention, a bearing is provided between the electric telescopic rod and the rotating hole, the pressure sensor is electrically connected to the control panel, and a clamping push rod is installed at the upper end of the auxiliary frame, and the output end of the clamping push rod is connected to the clamping plate.

[0016] The technical solutions provided in this application can include the following beneficial effects: This application designs a rain test device for automotive parts coatings, which can solve the problem that static placement methods cannot achieve all-round spray coverage of the outer surface of parts, especially complex curved surfaces that are prone to forming blind spots in detection; secondly, existing clamping devices lack dynamic adjustment functions, making it difficult to simulate the working environment in which parts are subjected to multi-angle rain impacts during actual vehicle operation.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a rain test device for automotive parts coatings provided in one embodiment of this application;

[0020] Figure 2 yes Figure 1 Rear view of the rain test apparatus for automotive component coatings;

[0021] Figure 3 yes Figure 2 A schematic diagram of the side section structure of AA;

[0022] Figure 4 yes Figure 3 Partial exploded view of the rain test apparatus for automotive parts coatings;

[0023] Figure 5 yes Figure 4 Enlarged diagram of point A in the middle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] like Figures 1 to 5 As shown, this application provides a rain test device for automotive parts coatings. The main body of the device 100 includes a test chamber 10, a spray cover 20, a spray assembly 30, a control panel 40, and a lifting cylinder 50. The spray cover 20 is located at the upper end of the test chamber 10, the spray assembly 30 is located at the rear side of the test chamber 10, and the lifting cylinder 50 is located in the middle of the test chamber 10. The output end of the lifting cylinder 50 is connected to a placement plate 60. An adjustment assembly 70 is set on both sides of the test chamber 10, including a support frame 71 set on the outside of the test chamber 10. An adjustment motor 72 is installed on the outside of the support frame 71. The output end of the adjustment motor 72 is connected to a pulley 73. A rotating hole 74 is opened in the middle of the test chamber 10. An electric telescopic rod 75 is set inside the rotating hole 74. A pulley 76 and a pressure sensor 79 are respectively connected to the two ends of the electric telescopic rod 75. An auxiliary frame 78 is set on one side of the pressure sensor 79. A clamping plate 711 is set inside the auxiliary frame 78.

[0028] After adopting the above technical solution, since the adjustment components 70 are set on both sides of the test box 10, when clamping the automotive parts, the two sets of adjustment components 70 clamp the parts and can drive them to adjust their angle. This can solve the problem that the static placement method cannot achieve all-round spray coverage on the outer surface of the parts, especially complex curved parts are prone to forming blind spots in the detection. Secondly, the existing clamping device lacks dynamic adjustment function and it is difficult to simulate the working environment of the parts being subjected to multi-angle rain water impact during actual vehicle operation.

[0029] It should be noted that when clamping the parts, firstly, by pulling the handle, the spray cover 20 is opened via the hinge. At this time, the parts are placed on the upper end of the placement tray 60. When the spray cover 20 is closed, the placement tray 60 is lowered by the lifting cylinder 50, and the parts are positioned with the adjustment component 70 according to the water level. Then, the output ends of the two sets of electric telescopic rods 75 are controlled by the control panel 40 to drive the auxiliary frame 78 and the pressure sensor 79 to clamp along both sides of the parts, so that the auxiliary frame 78 contacts the parts. The pressure sensor 79 detects the clamping force and feeds it back to the control circuit board. After the set value is reached, the operation of the output end of the electric telescopic rod 75 is stopped, thereby driving the clamping plate 711 to descend through the output end of the clamping push rod 710. The clamping plate 711 clamps the edge of the parts. At the same time, a pressure sensor is set between the clamping push rod 710 and the clamping plate 711 to avoid damaging the parts.

[0030] Next, the water pump 32 is started by controlling the control panel 40, and the water in the water storage tank 31 is transported to the interior of the three sets of auxiliary pipes 35 through the water pump 32, hose 33 and main pipe 34. Then, the components are sprayed through several sets of nozzles 36 to conduct a rain test on the components.

[0031] Finally, when the component needs angle adjustment, the control panel 40 controls the two sets of adjustment motors 72 to run simultaneously, driving pulley 1 73, transmission belt 77 and pulley 2 76 to rotate, which in turn drives the electric telescopic rod 75 to rotate along the inside of the bearing, further driving the auxiliary frame 78 and the component to rotate, thereby satisfying the effect of rain on the component at different angles.

[0032] It should be noted that a unified power supply and controller are provided between the two sets of regulating motors 72. They are powered by the same power supply and output synchronous control signals through the control circuit board. When driving the two sets of regulating motors 72 at the same time, the hardware synchronization measures adopt a dual-channel motor driver, add an optocoupler to isolate interference, and connect an emergency stop switch in parallel to achieve linkage protection.

[0033] The lifting cylinder 50 has three height settings at its output end. The lowest height is provided for adjusting the angle of the component after it is clamped. The middle height is level with the adjustment component 70, which makes it easy for the adjustment component 70 to clamp the component. The highest height is the top of the test box 10, which makes it easy for the user to place the component without having to put their hand inside the test box 10.

[0034] In an optional embodiment, a hinge is provided at the connection between the test chamber 10 and the spray cover 20, and a handle is installed on the top of the spray cover 20. The spray cover 20 is a transparent structure, allowing observation of the rain conditions on the components.

[0035] In an optional embodiment, the spray assembly 30 includes a water tank 31 fixed to one side of the test chamber 10, and a water pump 32 is installed at the upper end of the water tank 31. The water pump 32 is electrically connected to the control panel 40 and can extract water from the inside of the water tank 31.

[0036] In one optional embodiment, the output end of the water pump 32 is connected to a hose 33, and a main pipe 34 connected to the hose 33 is installed inside the spray cover 20. The middle part of the main pipe 34 is connected to a secondary pipe 35, so that water inside the water storage tank 31 can be pumped into the main pipe 34 and the secondary pipe 35, which facilitates subsequent spraying operations.

[0037] In one optional embodiment, there are three sets of secondary pipes 35 arranged in an array, and the secondary pipes 35 have an arc-shaped structure. Spray nozzles 36 are installed at the bottom of both the secondary pipes 35 and the main pipe 34. There are several sets of spray nozzles 36 arranged in an array, and water can be sprayed along the outside of the component through several sets of spray nozzles 36.

[0038] In one alternative implementation, control buttons and a display screen are mounted on the outside of the control panel 40, and a control circuit board and a battery are installed inside the control panel 40 to facilitate the start and stop of the spray assembly 30, the lifting cylinder 50 and the adjustment assembly 70.

[0039] In one optional embodiment, the output end of the lifting cylinder 50 is fixedly connected to the placement plate 60, and an anti-slip strip 61 is fixedly connected to the top of the placement plate 60. The anti-slip strip 61 is made of rubber and can be used to place parts to achieve an anti-slip effect.

[0040] In one optional embodiment, there are two sets of support frames 71, which are symmetrically distributed. The output end of the adjusting motor 72 is fixedly connected to the pulley 73, and a transmission belt 77 is connected between the pulley 73 and the pulley 76. The electric telescopic rod 75 can be rotated by adjusting the motor 72.

[0041] In an optional embodiment, a bearing is provided between the electric telescopic rod 75 and the rotating hole 74, the pressure sensor 79 is electrically connected to the control panel 40, and a clamping push rod 710 is installed at the upper end of the auxiliary frame 78, and the output end of the clamping push rod 710 is connected to the clamping plate 711, which can clamp the parts from the outside and at a height to ensure their stability.

[0042] In the description of this application, it should be noted that, unless otherwise expressly 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 or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An automobile parts coating rain test device characterized by comprising: include: The main body of the device includes a test chamber, a spray cover, a spray assembly, a control panel, and a lifting cylinder. The spray cover is located at the top of the test chamber, the spray assembly is located at the rear of the test chamber, and the lifting cylinder is located in the middle of the test chamber. The output end of the lifting cylinder is connected to a placement tray. An adjustment assembly is located on both sides of the test chamber, including a support frame located on the outside of the test chamber, and an adjustment motor installed on the outside of the support frame. The output end of the adjustment motor is connected to a pulley. A rotating hole is opened in the middle of the test chamber, and an electric telescopic rod is installed inside the rotating hole. A pulley and a pressure sensor are respectively connected to the two ends of the electric telescopic rod. An auxiliary frame is provided on one side of the pressure sensor, and a clamping plate is installed inside the auxiliary frame.

2. The rain test apparatus for automotive component coatings according to claim 1, characterized in that, The test chamber is connected to the spray cover by a hinge, and the top of the spray cover is equipped with a handle. The spray cover is transparent.

3. The rain test device for coating of automobile parts according to claim 1, wherein The spray assembly includes a water tank fixed to one side of the test chamber, and a water pump is installed at the upper end of the water tank. The water pump is electrically connected to the control panel.

4. The rain test device for a coating of an automobile part according to claim 3, characterized by The output end of the water pump is connected to a hose, and the inside of the spray cover is equipped with a main pipe that communicates with the hose, and the middle of the main pipe is connected to a secondary pipe.

5. The rain test device for coating of an automobile part according to claim 4, wherein The number of secondary pipes is three groups arranged in an array, and the secondary pipes have an arc-shaped structure. Spray nozzles are installed at the bottom of both the secondary pipes and the main pipe, and the number of spray nozzles is several groups arranged in an array.

6. The rain test device for coating of automobile parts according to claim 1, wherein The control panel is equipped with control buttons and a display screen on its outside, and a control circuit board and a battery are installed inside the control panel.

7. The rain test device for coating of automobile parts according to claim 1, wherein The output end of the lifting cylinder is fixedly connected to the placement plate, and an anti-slip strip is fixedly connected to the top of the placement plate. The anti-slip strip is made of rubber.

8. The rain test device for coating of automobile parts according to claim 1, wherein The number of support frames is two sets and they are symmetrically distributed. The output end of the regulating motor is fixedly connected to pulley one, and a transmission belt is connected between pulley one and pulley two.

9. The rain test apparatus for automotive component coatings according to claim 1, characterized in that, A bearing is provided between the electric telescopic rod and the rotating hole; the pressure sensor is electrically connected to the control panel; a clamping push rod is installed at the upper end of the auxiliary frame, and the output end of the clamping push rod is connected to the clamping plate.