Vehicle-mounted navigator screen performance testing device

Abstract

The invention relates to the technical field of screen performance testing, in particular to a vehicle-mounted navigator screen performance testing device, which comprises a seat body, a test platform is formed on the upper end surface of the seat body, and a test platform is mounted on the test platform; the clamping assembly is used for clamping a screen to be tested; the test assembly comprises a lifting piece, and the lifting piece is provided with a mounting piece; the mounting part is detachably connected with a mounting part, the mounting part is used for mounting various testing tools, the testing device disclosed by the invention can be used for testing various performances of the to-be-tested screen, different testing modes can be quickly switched by replacing the standardized mounting part, one machine with multiple purposes is realized, and the testing efficiency is improved. The high cost of purchasing a plurality of single-function test devices by an enterprise is avoided, the space of a laboratory is saved, and the device management work is simplified.

Description

Technical Field

[0001] This invention relates to the technical field of screen performance testing, and in particular to a device for testing the screen performance of a vehicle navigation system. Background Technology

[0002] With the development of automotive intelligence and electrification, in-vehicle navigation systems, as an important component of intelligent driving, directly impact user experience and driving safety through their screen performance. In-vehicle navigation screens not only need to provide clear display in complex environments, but also must possess multiple properties such as pressure resistance, shock resistance, scratch resistance, and water resistance to adapt to various usage scenarios.

[0003] The existing device works by applying external force to the screen or simulating an external environment through a pressure-applying mechanism to test the screen's performance under extreme conditions. After the test is completed, data is recorded by sensors and analyzed to evaluate the screen's reliability.

[0004] Most devices can only perform a single type of performance test, such as a pressure test or a waterproof test, which increases equipment maintenance costs. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide an integrated, multi-functional vehicle navigation screen performance testing device.

[0006] The above-mentioned objective of this invention is achieved through the following technical solutions: A vehicle navigation system screen performance testing device includes: a base, wherein a testing platform is formed on the upper surface of the base, and a device is mounted on the testing platform; Clamping components are used to hold the screen to be tested; The test component includes a lifting element, on which a mounting element is provided; The mounting component is detachably connected to a mounting part, which is used to mount various testing tools.

[0007] As a specific embodiment of the vehicle navigation screen performance testing device disclosed in this invention, the mounting component has an upper connecting section and a lower mounting section; The upper connecting section is connected to the lifting component, and the lower mounting section is used to connect to the mounting part.

[0008] As a specific embodiment of the vehicle navigation screen performance testing device disclosed in this invention, the mounting component has a through hole, and the mounting part has a connecting hole, with the through hole and the connecting hole facing each other.

[0009] As a specific embodiment of the vehicle navigation screen performance testing device disclosed in this invention, the mounting part is provided with a guide rail on the side facing away from the mounting component, and the mounting part extends toward the guide rail with a guide block that cooperates with the guide rail.

[0010] As a specific embodiment of the vehicle navigation screen performance testing device disclosed in this invention, the clamping assembly includes a clamping base, on which multiple sets of clamping platforms are provided. Each set of clamping platforms corresponds one-to-one with multiple sets of testing tools. Each clamping platform includes a base connected to the clamping base. The base is connected to a fixed platform and a sliding platform. The fixed platform and the base are relatively fixed in position, and the sliding platform and the base are relatively movable.

[0011] As a specific embodiment of the vehicle navigation screen performance testing device disclosed in this invention, the clamping seat has a through hole at the position of each clamping platform, and a through rod is connected through the through hole. A limiting member extends from one side of the through rod and abuts against the fixed platform.

[0012] As a specific embodiment of the vehicle navigation screen performance testing device disclosed in this invention, the fixed platform has a threaded rod that is threadedly connected to the sliding platform.

[0013] As a specific embodiment of the vehicle navigation screen performance testing device disclosed in this invention, the base includes a connecting platform and two sets of mounting platforms located on both sides of the base, wherein the upper surface of the connecting platform is lower than the upper surface of the mounting platform.

[0014] As a specific embodiment of the vehicle navigation screen performance testing device disclosed in this invention, a horizontal guide rail is installed on the test platform, and the clamping seat is slidably connected to the horizontal guide rail.

[0015] In summary, the present invention has at least one of the following beneficial technical effects: 1. The testing device disclosed in this invention can perform various performance tests on the screen to be tested. By replacing the standardized mounting plate, it can quickly switch between different testing modes, realizing multiple uses of one machine. This avoids the high cost for enterprises to purchase multiple single-function testing devices, saves laboratory space, and simplifies equipment management. 2. The testing device disclosed in this invention, through its modular clamping and testing components, can adapt to vehicle screens of different sizes and specifications. The multi-clamping stage design supports multi-point testing of a single screen or parallel testing of multiple screens, significantly reducing the time spent changing tooling and repetitive positioning, and greatly improving the efficiency of batch testing. 3. The testing device disclosed in this invention employs a lifting component and a lateral movement drive assembly driven by a servo motor or cylinder, an anti-torque sliding pair consisting of a guide rail and a guide block, and a clamping mechanism that can be precisely adjusted and rigidly locked. These designs ensure that the testing tool is accurately positioned and moves along a consistent trajectory during pressure application, scraping, and impact, effectively avoiding test result distortion caused by insufficient rigidity of the equipment itself or positioning deviation, and guaranteeing the repeatability and comparability of the test data. 4. The testing device disclosed in this invention also has a built-in integrated control and feedback system. The operator can automatically complete all the positioning, clamping, testing, data acquisition and result judgment processes through the preset testing program, which reduces human operation error and can also generate quantitative test reports, providing data support for product quality assessment and subsequent product adjustment and optimization. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a vehicle navigation system screen performance testing device disclosed in this invention; Figure 2 This is a schematic diagram of the structure of the components above the test platform of an embodiment of a vehicle navigation screen performance testing device disclosed in this invention. Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle; Figure 4 This is an exploded view of the components above the test platform of an embodiment of a vehicle navigation system screen performance testing device disclosed in this invention. Figure 5 This is a schematic diagram of the installation part of an embodiment of a vehicle navigation screen performance testing device disclosed in this invention.

[0017] Figure label: 1. Seat; 11. Test platform; 12. Support legs; 2. Clamping assembly; 21. Slider; 22. Horizontal guide rail; 23. Clamping stage; 231. Base; 2311. Connecting platform; 2312. Mounting platform; 232. Fixing platform; 233. Sliding stage; 24. Through rod; 241. Limiting component; 3. Test components; 31. Lifting component; 32. Mounting component; 321. Upper connecting section; 322. Lower mounting section; 323. Through hole; 33. Mounting part; 331. Connecting hole; 332. Guide block; 333. Guide rail; 4. Lateral drive assembly; 41. Support frame; 411. Rib plate; 412. Assembly plate; 42. Lateral movement drive component; 43. Lateral movement plate; 44. Auxiliary plate. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Please see Figure 1 - Figure 4 This invention discloses a vehicle navigation system screen performance testing device, comprising a base 1 made of cast iron or high-strength aluminum alloy, and a plurality of support legs 12. Figure 1 In the illustrated embodiment, four support legs 12 are provided, and the height of each support leg 12 can be adjusted by anchor bolts to ensure the stability of the entire device. The upper surface of the base 1 is precision machined to form a test platform 11 with a high degree of horizontality, which serves as the reference plane for the test device. The test platform 11 is equipped with a clamping component 2 for holding the screen to be tested and a test component 3 for performing the test.

[0020] The clamping assembly 2 includes a horizontal guide rail 22 mounted on the test platform 11. A clamping seat is slidably connected to the horizontal guide rail 22, and the clamping seat engages with the horizontal guide rail 22 via a slider 21 mounted on the lower end face of the clamp. A cylinder is mounted on the test platform 11, with its cylinder body fixed to the test platform 11 and its output end fixedly connected to the clamping seat. Driven by the cylinder, the clamping seat can achieve precise and automated horizontal positioning, thereby quickly aligning different test areas of the screen with the test tool.

[0021] Specifically, the clamping base is equipped with multiple sets of clamping stages 23, each corresponding to a testing tool to accommodate parallel testing of multiple screens.

[0022] As a specific embodiment of the testing device provided by the present invention, each clamping stage 23 includes a base 231, a fixing stage 232, and a sliding stage 233. The base 231 has a centrally recessed connecting stage 2311 and two mounting stages 2312 located on either side thereof. The upper surface of the connecting stage 2311 is slightly lower than the upper surface of the mounting stage 2312, forming a groove. This groove is used to place the screen to be tested, which can limit the horizontal displacement of the screen to be tested, thereby reducing damage to the screen due to accidental sliding or reducing testing accuracy.

[0023] The positions of the fixed stage 232 and the base 231 remain relatively fixed during the placement of the test screen, while the sliding stage 233 can slide relative to the base 231 to adjust the clamping length. Each clamping base has a through hole corresponding to the position of each clamping stage 23, through which a through rod 24 is connected. The through rod 24 extends from the side closest to the fixed stage 232 to form a limiting member 241. The limiting member 241 can be a boss integrally formed with the through rod 24, or a bushing that fits onto the through rod 24. The through rod 24 can be locked with a nut, or locked by a quick-locking mechanism such as a quick-clamping handle or an eccentric cam buckle. When the through rod 24 is locked, the limiting member 241 is in close contact with the fixed stage 232, thus fixing the position of the fixed stage 232.

[0024] In some feasible embodiments, the sliding stage 233 is adjusted via a threaded connection, specifically by a threaded rod passing through the fixed platform 232 and the base 231 and threadedly connected to the sliding stage 233. By rotating this threaded rod, the sliding stage 233 can be controlled to slide along the axis of the threaded rod, thereby achieving fine-tuning of the size of the screen to be clamped and applying a stable clamping force. Furthermore, one end of the threaded rod can be equipped with a handwheel or a hexagonal head for easy manual operation.

[0025] Test component 3 is the execution unit for testing the screen. Test component 3 includes a lifting component 31, which can be a servo motor, stepper motor or cylinder, etc. The lifting component 31 can perform controllable and repeatable positioning movements in the vertical direction, providing stable Z-axis feed for the test tool.

[0026] A mounting component 32 is installed on the lifting component 31. The mounting component 32 serves as the connection hub between the lifting component 31 and the testing tools. The mounting component 32 has an upper connecting section 321 and a lower mounting section 322. The upper connecting section 321 connects to the output end of the lifting component 31, and this connection can be made by thread or welding. The lower mounting section 322 is typically a cylindrical structure used to connect to the mounting part 33. The mounting part 33 is detachably connected to the mounting component 32, and multiple sets of testing tools can be mounted on the mounting part 33.

[0027] The following section provides a further introduction based on specific usage scenarios. The installation unit 33 is specifically a mounting plate, which can be standardized and customized in various ways. Each mounting plate has multiple connection positions, allowing the installation of multiple and various testing tools, such as pressure testing heads, scratch testing tools of different hardness, water spray waterproof testing tools, high temperature testing probes, impact testing probes, etc., thus achieving multi-purpose functionality.

[0028] like Figure 1 - Figure 4 In the illustrated embodiment, a pressure testing tool is mounted on the mounting plate, and the screen to be tested is tested by applying pressure, such as... Figure 5In the illustrated embodiment, a scratch testing tool is mounted on the mounting plate. It should be understood that the shape and structure of the mounting plate can be adjusted to accommodate the testing tool mounted on it. Furthermore, multiple identical testing tools or different testing tools can be mounted on a single mounting plate.

[0029] As a specific embodiment of the testing device provided by the present invention, the mounting part 32 has a through hole 323 and the mounting part 33 has a corresponding connecting hole 331. When the through hole 323 and the connecting hole 331 are aligned, bolts can be used for fastening connection.

[0030] To ensure the stability of the mounting part 33 when subjected to lateral forces, a guide rail 333 is provided on the side of the mounting part 33 facing away from the mounting member 32, and a guide block 332 that cooperates with the guide rail 333 extends from the side of the mounting part 33 facing the guide rail 333, forming a torque-resistant sliding pair. This sliding pair can effectively reduce the twisting or deviation of the test tool during operation, and ensure the linearity of the test action and the accuracy of repeated tests.

[0031] As a specific embodiment of the present invention, a transverse drive assembly 4 is also installed on the test platform 11. The transverse drive assembly 4 includes a support frame 41 installed on the test platform 11. The support frame 41 includes two vertically placed ribs 411 fixedly installed on the test platform 11. The two ribs 411 are snapped with an assembly plate 412. A transverse drive component 42 is fixedly connected to the assembly plate 412. The transverse drive component 42 can be a cylinder or a push rod motor, etc. The output end of the transverse drive component 42 is connected to a transverse plate 43. The aforementioned guide rail 333 is installed on this transverse plate 43.

[0032] To ensure the stability of the entire component during the lateral movement, two sets of transverse auxiliary plates 44 are fixedly connected to the assembly plate 412. The transverse drive component is located between the two sets of auxiliary plates 44. The auxiliary plates 44 are equipped with guide rails. The transverse plate 43 is connected to the guide rails to form a torque-resistant sliding pair. This sliding pair can effectively reduce the twisting or displacement of the transverse sliding component during operation and ensure the accuracy of the test action.

[0033] It should be understood that the test platform 11 is equipped with a control and feedback system, which includes a programmable logic controller or industrial computer integrated inside the device, for storing preset test programs, such as pressure curves, scraping speed, water spray volume, temperature change curves, etc.

[0034] The test platform 11 can also be equipped with a variety of high-precision sensors, such as pressure sensors to monitor test force in real time, displacement sensors to monitor the stroke of lifting component 31, temperature sensors to monitor the simulated temperature of the environment, and vision sensors to locate test points.

[0035] The test platform 11 is also equipped with a human-machine interface. Operators can select test items, set parameters such as pressure value, test speed, dwell time, number of test cycles, etc., through the human-machine interface via touch screen, buttons, etc., and start the test sequence.

[0036] The programmable logic controller or industrial computer also integrates a data acquisition and processing unit to automatically collect all sensor data throughout the entire testing process, generate force-displacement curves, temperature-time curves, etc., and automatically determine the test results through algorithms, such as whether it is cracked, scratch level, waterproof level, etc., and generate a detailed test report.

[0037] The operator first places the screen to be tested into the groove of the base 231 of the clamping assembly 2, and drives the sliding stage 233 to move by rotating the threaded rod to initially clamp the screen. Then, the control system drives the cylinder to move the clamping seat along the transverse guide rail, accurately positioning the screen test point directly below the test tool. After that, the operator selects and starts the test program through the human-machine interface. The control system instructs the lifting component 31 to descend according to preset parameters, driving the test tools on the mounting plate, such as pressure heads and scraping tools, to apply precise mechanical or environmental loads to the screen. During this process, various sensors monitor force, displacement, temperature and other data in real time and feed them back to the controller for processing and analysis. After a single test point is completed, the device can automatically move to the next point or change the test tool to continue testing until the program is completed, and finally automatically generate a test report.

[0038] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A device for testing the screen performance of a vehicle navigation system, characterized in that, include: A base (1) is provided, and a test platform (11) is formed on the upper surface of the base (1), and the test platform (11) is equipped with; Clamping component (2) for clamping the screen to be tested; The test component (3) includes a lifting component (31) on which a mounting component (32) is provided; The mounting component (32) is detachably connected to a mounting part (33), which is used to mount various testing tools.

2. The vehicle navigation system screen performance testing device according to claim 1, characterized in that: The mounting component (32) has an upper connecting section (321) and a lower mounting section (322); The upper connecting section (321) is connected to the lifting member (31), and the lower mounting section (322) is used to connect to the mounting part (33).

3. The vehicle navigation system screen performance testing device according to claim 1, characterized in that: The mounting component (32) has a through hole (323), and the mounting part (33) has a connecting hole (331). The through hole (323) and the connecting hole (331) are directly opposite each other.

4. The vehicle navigation system screen performance testing device according to claim 1, characterized in that: The mounting part (33) has a guide rail (333) on the side opposite to the mounting member (32), and a guide block (332) that cooperates with the guide rail (333) extends from the side of the mounting part (333) toward the guide rail (333).

5. A vehicle navigation system screen performance testing device according to any one of claims 1-4, characterized in that: The clamping assembly (2) includes a clamping base, on which multiple clamping platforms (23) are provided. Each set of clamping platforms (23) corresponds to a set of testing tools. Each clamping platform (23) includes a base (231) connected to the clamping base. The base (231) is connected to a fixed platform (232) and a sliding platform (233). The fixed platform (232) and the base (231) are relatively fixed in position, and the sliding platform (233) and the base (231) can slide relative to each other.

6. The vehicle navigation system screen performance testing device according to claim 5, characterized in that: The clamping seat has a through hole at the position of each clamping platform (23), and a through rod (24) is connected through the through hole. A limiting member (241) extends from one side of the through rod (24) and abuts against the fixed platform (232).

7. The vehicle navigation system screen performance testing device according to claim 5, characterized in that: The fixed platform (232) has a threaded rod that is threadedly connected to the sliding platform (233).

8. The vehicle navigation system screen performance testing device according to claim 5, characterized in that: The base (231) includes a connecting platform (2311) and two sets of mounting platforms (2312) located on both sides of the base (231), wherein the upper surface of the connecting platform (2311) is lower than the upper surface of the mounting platform (2312).

9. The vehicle navigation system screen performance testing device according to claim 5, characterized in that: A horizontal guide rail (22) is installed on the test bench, and the clamping seat is slidably connected to the horizontal guide rail (22).

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