Multi-contact vehicle machine screen detection device

Abstract

The utility model provides a multi-contact vehicle machine screen detection device. The device can simulate multi-point touch operation; controlling the pressure of the clamping device; the lens is adapted to a curved screen; the screen zooming function can be detected. The specific functions of the device are realized as follows: the end effector controls the micro conductive silica gel disc to be powered on and powered off, a complex multi-contact operation scene is simulated, and the reliability and the accuracy of the multi-contact function of the vehicle machine screen are detected. A lifting type clamping base is adopted, so that the clamping pressure and the clamping size can be adjusted; and the loss caused by improper clamping can be effectively reduced. The five auxiliary touch control rods can stretch out and draw back within a certain range under the action of built-in springs, so that the touch control rods can better adapt to a curved screen; the slotted disc can limit the contraction and expansion of the elastic touch control assembly within a certain range, and the elastic touch control assembly is driven to slide on the screen under the action of the slotted disc through the on-off of the miniature conductive silica gel disc on the screen so as to realize the zooming function.

Description

Technical Field

[0001] This utility model relates to the field of vehicle infotainment screen detection technology, and in particular to a vehicle infotainment screen detection device that uses numerical control to adjust the mechanical structure to achieve multi-touch control. Background Technology

[0002] As automobiles become increasingly intelligent, in-vehicle infotainment screens have become a crucial component of vehicle control systems. These screens are larger and more functional; the widespread application of multi-touch technology has led to more diverse control methods, posing challenges to screen testing. Accurate and efficient testing of screen quality and sensitivity is essential for ensuring a superior user experience. Therefore, a novel multi-touch in-vehicle infotainment screen testing device is urgently needed.

[0003] The patent application CN220187683U, titled "A Screen Testing Mechanism for Vehicle Navigation Systems," discloses a screen testing mechanism for vehicle navigation systems. Its main structure includes a base, a vertical plate, a top plate, a hydraulic cylinder, a testing instrument, and a fixing assembly. The base has an internal mounting cavity, and the fixing assembly extends to the top of the base. The fixing assembly consists of a moving plate, a connecting rod, a clamping plate, a servo motor, a turntable, a first fixed shaft, a second fixed shaft, and a connecting rod. The device functions by starting the servo motor to rotate the turntable. Under the linkage of the first fixed shaft, the second fixed shaft, and the connecting rod, the moving plates on both sides move relative to each other, causing the connecting rod to drive the clamping plate to clamp the screen, thereby achieving automatic screen fixing. However, it only achieves a simple clamping of the screen to be tested.

[0004] Publication number CN221405184U, entitled "A Vehicle Navigation System Screen Testing Device," discloses a vehicle navigation system screen testing device. Its main structure includes a worktable, a frame, a top platform, a dual-head motor, a threaded rod, a sliding column, a displacement shell, a striking device, testing components, and a lifting mechanism. The frame is fixed to the left and right ends of the top wall of the worktable. The top platform houses a dual-head motor that drives the threaded rod. The sliding column restricts the rotation of the displacement shell, which contains the striking device and testing components. A lifting mechanism is located on the top of the worktable. The device functions by having the dual-head motor drive the threaded rod to rotate, and the sliding column restricts the displacement shell to move only horizontally, thereby adjusting the position of the striking device to accommodate different screen sizes and completing a precise striking test. The lifting mechanism, driven by a first telescopic rod, drives the fixed platform and, in conjunction with the responding device, performs vehicle screen testing. It only implements a simple striking test on the screen.

[0005] With technological advancements, multi-touch technology has been widely applied in the development of in-vehicle infotainment screens, enriching their functionality. Users may require multi-finger operation to access different functions. However, existing in-vehicle infotainment screen testing devices, limited by their structural design and technical constraints, cannot perform multi-touch detection. Therefore, they cannot simulate real-world usage scenarios, making it difficult for test results to accurately reflect the accuracy and reliability of multi-touch functionality during use. This can easily lead to false positives and false negatives in multi-touch detection. When defective in-vehicle infotainment screens enter the market, it significantly impacts the user experience.

[0006] When inspecting vehicle infotainment screens on the production line, ensuring stable screen clamping is crucial for subsequent testing. Existing clamping devices cannot effectively detect clamping pressure and employ parallel fixing components. Insufficient clamping pressure can cause the screen to detach during testing, interrupting the process and potentially causing physical damage. Excessive clamping pressure, on the other hand, can damage the screen, resulting in production losses. Since different vehicle infotainment screen models vary in size, material, and shape, the fixing components of the clamping device should be designed with greater flexibility and adaptability. The clamping pressure and size should be adjusted according to the screen's characteristics to meet diverse fixing needs, thereby enhancing the versatility and practicality of the testing device.

[0007] With continuous innovation in automotive design, curved screens, with their unique visual effects and ergonomic advantages, are widely used in the automotive market. However, existing screen inspection equipment faces a significant challenge in inspecting curved screens. The varying curvature of curved screens in automotive infotainment systems makes it difficult to comprehensively and evenly cover all areas of the screen. Traditional inspection equipment based on planar screen models struggles to adapt to curved screens, leading to a substantial decrease in inspection accuracy. This technological shortcoming renders existing technologies inadequate for the inspection needs of curved screen automotive infotainment systems, necessitating a breakthrough in new inspection equipment.

[0008] The screen zoom function is a crucial part of the vehicle infotainment screen testing process. Users can zoom to view images, map navigation, and other content. However, existing vehicle infotainment screen testing devices have significant shortcomings in this area. Some existing testing devices cannot perform zoom operations, making it impossible to determine the stability and accuracy of the zoom function during vehicle screen testing. If the zoom function fails during actual use, it will significantly degrade the user experience and affect the overall usability of the vehicle's intelligent system. Utility Model Content

[0009] This utility model patent aims to address the technical problems existing in current vehicle infotainment screen testing devices. To overcome these shortcomings, an innovative multi-touch vehicle infotainment screen testing device is proposed. This device can simulate multi-touch operations; control the clamping device pressure and improve its structural design; adapt to curved screens; and test the screen scaling function. Specifically, its functionality is achieved by: an end effector controlling the on / off state of a micro-conductive silicone disc to simulate complex multi-touch operation scenarios, thus enabling the reliable and accurate testing of the multi-touch function of the vehicle infotainment screen. A lifting-type clamping base allows for adjustment of clamping pressure and size, effectively reducing damage caused by improper clamping. Five auxiliary touch levers, under the action of built-in springs, can expand and contract within a certain range, better adapting to curved screens; forming a testing device that comprehensively covers all areas within curved screens of varying curvatures, meeting the testing requirements of curved screens. The slotted disc can limit the expansion and contraction of the elastic touch component within a certain range. By switching the power on and off on the screen through the micro conductive silicone disc, the slotted disc drives the elastic touch component to slide on the screen to achieve the scaling function.

[0010] To achieve the above objectives, this utility model provides the following technical solution: a multi-touch vehicle infotainment screen detection device, comprising:

[0011] The coordinate motion system includes linear motion modules for the X, Y, and Z axes that are orthogonally set.

[0012] An end effector, used for touch testing of a screen, includes:

[0013] a) Multiple elastic touch components arranged in a surrounding manner, each component including a limiting sleeve with a built-in compression spring, a secondary touch rod that can be axially displaced within the limiting sleeve, and a conductive silicone pad at the end of the secondary touch rod;

[0014] b) A dynamic adjustment mechanism is used to adjust the scaling of the relative positions between multiple elastic touch components; the scaling of the relative positions means that multiple elastic touch components can move closer or further away from their center position synchronously, especially when multiple elastic touch components are arranged in a circular interval, multiple elastic touch components move closer or further away from the center position they form synchronously.

[0015] The lifting clamping structure includes a front clamping arm, a rear clamping arm, and a clamping drive mechanism that drives the front and rear clamping arms to move closer or further apart from each other.

[0016] The coordinate motion system drives the end effector and the lifting clamping structure to achieve mutual positional movement in three axes.

[0017] Furthermore, the vehicle screen inspection device also includes a steering camera for monitoring the screen inspection process.

[0018] Furthermore, the end effector also includes a central main touch control assembly, which has an eccentric linkage mechanism driven by a micro servo motor to realize the telescopic movement of the main touch control stick in the up and down direction, and a conductive silicone pad is provided at the end of the main touch control stick.

[0019] The main touch component is located at the center of the area composed of multiple elastic touch components.

[0020] Furthermore, the Z-axis linear motion module drives the X-axis linear motion module to perform linear motion along the Z-axis direction;

[0021] The X-axis linear motion module drives the end effector to move linearly along the X-axis direction;

[0022] The Y-axis linear motion module drives the lifting clamping structure to move linearly along the Y-axis direction.

[0023] Composition: The coordinate motion system drives the end effector and the lifting clamping structure to achieve mutual positional movement of three axes.

[0024] Furthermore, the dynamic adjustment mechanism of the end effector includes:

[0025] A card slot fixing frame, wherein a plurality of first guide grooves are evenly distributed in a circular pattern on the card slot fixing frame, and the first guide grooves are elongated grooves extending from the center of the card slot fixing frame to the edge;

[0026] A slotted disc is rotatably connected to a slotted fixing frame. The slotted disc has multiple involute-shaped second guide grooves, each corresponding to a first guide groove. The first and second guide grooves are arranged along the Z-axis. Both the first and second guide grooves are opened along the Z-axis.

[0027] A limiting slider is fixedly connected to a limiting sleeve. The limiting slider is installed in a first guide groove and can move within the first guide groove. The limiting sleeve is slidably connected in a second guide groove.

[0028] A drive motor, the output shaft of which is connected to the slotted disk to drive the slotted disk to rotate.

[0029] Furthermore, the lifting clamping structure and the end effector are arranged along the Z-axis, that is, the lifting clamping structure is located in the area below the end effector; the clamping drive mechanism of the lifting clamping structure includes:

[0030] A mobile platform, which is driven by a Y-axis linear motion module to move linearly along the Y-axis direction;

[0031] The system includes a left rack, a right rack, a drive gear, and a bus-type servo. The left and right racks are located on the left and right sides of the drive gear, respectively, and mesh with the drive gear. The drive gear is driven by the bus-type servo.

[0032] The left rack forms a rigid connection with the front clamping arm and a dynamic fit with the linear sliding pair that runs through the rear clamping arm;

[0033] The right rack is rigidly connected to the rear clamping arm and dynamically engaged with the linear sliding pair that runs through the front clamping arm.

[0034] Furthermore, pressure sensors are provided on the clamping surfaces of both the front and rear clamping arms.

[0035] Furthermore, the directional camera consists of an industrial camera and a metal flexible tube, the metal flexible tube having a fixed end and the other end connected to the industrial camera.

[0036] Furthermore, the end effector also includes an end effector housing, which is coaxially fitted onto a slot mounting bracket, and both the main touch lever and the secondary touch lever extend downwards out of the end effector housing.

[0037] Furthermore, the clamping arm includes:

[0038] The lower support section is used to connect the clamping drive mechanism;

[0039] The middle bonding part has a first arc-shaped part with an outward opening connected to the upper end of the lower supporting part, and a second arc-shaped part with an inward opening connected to the upper end of the first arc-shaped part, which is used to support the screen.

[0040] The upper clamping part, which is connected to the upper end of the middle fitting part and extends upward along the Z-axis, is used to clamp the screen. A flexible buffer layer, such as an elastic rubber layer, can be provided on the inner side of the clamping arm.

[0041] The beneficial effects of this utility model are:

[0042] 1) By cooperating with the end effector and the Cartesian motion frame, precise click detection can be performed on any point on the vehicle screen;

[0043] 2) The main touch lever has telescopic capability through the rotation of the eccentric wheel and the cooperation of the positioning sleeve, and can be extended and retracted freely as needed;

[0044] 3) By freely energizing the miniature conductive silicone pads on the five elastic touch components, free and controllable multi-touch can be achieved;

[0045] 4) The compression spring is integrated with the touch bar, so that all five auxiliary touch bars have the ability to rebound, which can adapt to the curved screen with a certain curvature in the vehicle screen sliding detection, thus expanding the detection range.

[0046] 5) The slotted disc and the slotted fixing bracket mutually restrain each other, achieving the relative convergence and diffusion of the five touch sticks. Then, by freely energizing the miniature conductive silicone pads on the five touch sticks, multi-touch sliding tests on the vehicle's infotainment screen can be achieved.

[0047] 6) The lifting clamping base utilizes a lifting clamping arm to adapt to different types of vehicle screens, providing a more stable clamping experience and facilitating the testing of vehicle screens.

[0048] 7) The pressure sensor is integrated into the lifting clamping arm, which can effectively prevent the clamping device from damaging the vehicle screen. Attached Figure Description

[0049] To more clearly illustrate 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 A schematic diagram of the structure of a multi-touch vehicle infotainment screen detection device;

[0051] Figure 2 A schematic diagram of the Cartesian motion frame structure of a multi-touch vehicle infotainment screen detection device;

[0052] Figure 3 A schematic diagram of the end effector structure of a multi-touch vehicle infotainment screen detection device after removing the outer casing;

[0053] Figure 4 A schematic diagram of the end effector housing structure of a multi-touch vehicle infotainment screen detection device;

[0054] Figure 5 A schematic diagram of a lifting clamping base structure for a multi-touch vehicle infotainment screen detection device;

[0055] Figure 6 A schematic diagram of the structure of a multi-touch vehicle infotainment screen detection device from a second perspective;

[0056] Figure 7 This is a cross-sectional view of the end effector of this utility model;

[0057] Figure 8 This is an exploded view of the end effector of this utility model after the outer casing has been removed.

[0058] Explanation of reference numerals in the attached diagram: Cartesian motion frame 1: Fixed frame 11, upper right support block 12, right Z-axis lead screw 13, right Z-axis slide bar 14, right Z-axis lead screw slider 15, lower right support block 16, right Z-axis stepper motor 17, bottom bracket 18, moving platform 19, left Y-axis slide bar 120, Y-axis lead screw 121, right Y-axis slide bar 122, Y-axis stepper motor 123, left Z-axis lead screw 124, left Z-axis slide bar 125, left Z-axis lead screw slider 126, X-axis stepper motor 127, X-axis slide bar 128, X-axis lead screw 129, upper left support block 130, lower left support block 131, X-axis lead screw slider 132, left Z-axis stepper motor 133;

[0059] End effector 2: drive motor 21, slot fixing bracket 22, limit slider 23, slotted disc 24, limit sleeve 25, compression spring 26, secondary touch lever 27, conductive silicone disc 28, end effector housing 29, micro servo motor 210, eccentric wheel 211, connecting rod 212, main touch lever 213, positioning sleeve 214, support column 215, first guide groove 216, second guide groove 217, third guide groove 218;

[0060] 3. Turning camera; 31. Industrial camera; 32. Metal flexible hose;

[0061] Lifting clamping structure 4: rear clamping arm 41; pressure sensor 42, stable base 43, left rack 44, right rack 45, drive gear 46, bus-type servo motor 47, front clamping arm 48, cover plate 49. Specific Implementation

[0063] The following will refer to the appendix in the embodiments of this utility model. Figure 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0064] In this invention, the end effector's main structure consists of a central main touch component and five surrounding elastic touch components. The end effector is fixed to a Cartesian motion frame and can move along the Z and X axes. Each touch stick is equipped with a micro-conductive silicone pad at its bottom, enabling multi-touch control of the vehicle's infotainment screen by controlling its on / off state. The main touch stick is connected to a drive system powered by a micro-servo motor within the end effector via a linkage and eccentric mechanism. The rotation of the micro-servo motor is converted into the extension and retraction motion of the eccentric and linkage mechanisms, causing the main touch stick to extend and retract, allowing it to simulate real-world operation by clicking the vehicle's screen according to commands. For single-point touch, the main touch stick extends onto the screen for continuous clicking. For multi-touch, the main touch stick retracts, and the end effector moves downward under the action of the Z-axis lead screw and slider. The micro-conductive silicone pads of the five elastic touch components then contact the screen, and multi-touch is achieved by controlling their on / off state. However, in actual applications, the central main touch component works in conjunction with the surrounding elastic touch components to simulate various touch operations by switching their respective silicone pads on and off.

[0065] The lifting clamping base structure consists of a stable base and a lifting clamping device. The stable base, driven by a lead screw and stepper motor, can reciprocate in the Y-axis direction to adjust its position. The lifting clamping device comprises front and rear clamping arms, a bus-type servo motor, and left and right racks. When the bus-type servo motor rotates, it drives the gears mounted on it, which in turn drive the meshing racks on both sides to move linearly. When the gears rotate counterclockwise, the two clamping arms expand outward; when the gears rotate clockwise, the two clamping arms retract inward; this allows for flexible adjustment to accommodate different sizes of vehicle screens. Both clamping arms are equipped with pressure sensors that monitor the clamping pressure in real time, adjusting the pressure accordingly to prevent screen damage due to excessive or insufficient clamping pressure. The arc-shaped design of the clamping arms effectively distributes the screen's weight, increases friction, and prevents the screen from falling off during clamping.

[0066] The end effector features five elastic touch components on its outer side, each equipped with a high-performance compression spring. When working with curved in-vehicle infotainment screens of varying curvatures, the built-in springs provide elastic restoring force. The touch levers adaptively adjust their vertical displacement based on the surface's geometry. This dynamic adjustment mechanism ensures comprehensive and uniform coverage of all areas on curved screens with varying curvatures. During testing, this effectively solves the technical challenge of traditional testing devices being unable to adapt to curved in-vehicle infotainment screens.

[0067] The screen zoom function relies on a slotted disc in the end effector, which, as a core component, works in conjunction with a built-in drive motor. The motor's rotation, via mechanical transmission, drives the slotted disc to rotate synchronously. Five elastic touch components are mounted on the slotted disc, with the secondary touch levers moving within their slots. The relative displacement generated by the contact between the miniature conductive silicone pads at the tips of the touch levers and the screen surface simulates the screen zoom operation. To ensure the system's stability and accuracy, a limiting slider and a slot fixing bracket play crucial roles. The limiting slider, utilizing mechanical limiting principles, works in conjunction with the slot fixing bracket to confine the elastic touch components within a specific movement space, preventing system malfunctions due to excessive displacement and ensuring reliable operation of the screen zoom function.

[0068] This invention focuses on the field of vehicle infotainment screen inspection, aiming to provide a multi-touch vehicle infotainment screen inspection device. This device can simulate multi-touch operations, improving inspection accuracy. Its clamping device can adjust pressure and size to adapt to vehicle infotainment screens of different specifications, achieving non-destructive testing; it is also suitable for curved screen inspection, enhancing the accuracy of inspection results; in addition, the device has a screen scaling function, which can simulate human operation in real-world usage scenarios. This device improves the accuracy and efficiency of vehicle infotainment screen inspection, providing a solid guarantee for the quality control of vehicle infotainment screens.

[0069] As a specific embodiment of this utility model:

[0070] A multi-touch vehicle screen detection device structure includes a Cartesian motion frame 1, an end effector 2, a steering camera 3, and a lifting clamping structure 4; the steering camera (3) is fixed to the Cartesian motion frame 1 by an industrial camera 31 through a metal hose 32; the shooting angle of the industrial camera 31 can be adjusted through the metal hose 32.

[0071] like Figure 1 and Figure 2 As shown, the Cartesian motion frame 1, also known as the coordinate motion system, includes a fixed frame 11, wherein the Z-axis linear motion module includes: an upper right support block 12, a right Z-axis lead screw 13, a right Z-axis slide bar 14, a right Z-axis lead screw slider 15, a lower right support block 16, a right Z-axis stepper motor 17, a left Z-axis lead screw 124, a left Z-axis slide bar 125, a left Z-axis lead screw slider 126, an upper left support block 130, a lower left support block 131, and a left Z-axis stepper motor 133;

[0072] The Y-axis linear motion module includes: a bottom support 18, a moving platform 19, a left Y-axis slide bar 120, a Y-axis lead screw 121, a right Y-axis slide bar 122, and a Y-axis stepper motor 123;

[0073] The X-axis linear motion module includes: an X-axis stepper motor 127, an X-axis slide bar 128, an X-axis lead screw 129, and an X-axis lead screw slider 132;

[0074] The specific connection relationship of the coordinate motion system is as follows: the upper right support block 12 and the lower right support block 16 are fixed to the upper and lower ends of the fixed frame 11 along the Z-axis direction; the two ends of the right Z-axis lead screw 13 are rotatably connected between the upper right support block 12 and the lower right support block 16; the two ends of the right Z-axis slide rod 14 are fixed to the upper right support block 12 and the lower right support block 16; the right Z-axis lead screw slider 15 is threadedly engaged with the right Z-axis lead screw 13 and slidably engaged with the right Z-axis slide rod 14; the right Z-axis stepper motor 17 is fixed to the lower right... Below the support block 16; the right Z-axis stepper motor 17 is connected to the right Z-axis lead screw 13; the bottom bracket 18 is fixedly connected to the fixed frame 11; the left Y-axis slide rod 120 and the right Y-axis slide rod 122 are fixedly connected to the bottom bracket 18; the Y-axis stepper motor 123 is fixedly connected to the bottom bracket 18; one end of the Y-axis lead screw 121 is connected to the stepper motor 123 and the Y-axis lead screw 121 is rotatably connected to the bottom bracket 18; the moving platform 19 is connected to the left Y-axis slide rod 120 and the right Y-axis slide rod 122. The left Z-axis leadscrew 124 is rotatably connected between the upper left support block 130 and the lower left support block 131; the left Z-axis slide bar 125 is fixed between the upper left support block 130 and the lower left support block 131; the left Z-axis stepper motor 133 is fixed below the lower left support block 131; the left Z-axis stepper motor 133 is connected to the left Z-axis leadscrew 124; the left Z-axis leadscrew slider 126 is threadedly connected to the left Z-axis leadscrew 124, and... The left Z-axis slide bar 125 is in sliding engagement; the X-axis stepper motor 127 is installed inside the left Z-axis lead screw slider 126; the two ends of the X-axis slide bar 128 are fixed between the left Z-axis lead screw slider 126 and the right Z-axis lead screw slider 15; one end of the X-axis lead screw 129 is connected to the X-axis stepper motor 127 and both ends are rotatably connected to the left Z-axis lead screw slider 126 and the right Z-axis lead screw slider 15 respectively; the X-axis lead screw slider 132 is threadedly engaged with the X-axis lead screw 129 and is in sliding engagement with the X-axis slide bar 128.

[0075] like Figure 3 , 4As shown in Figures 7 and 8, the end effector 2 includes a drive motor 21, a slot mounting bracket 22, a limiting slider 23, a slotted disc 24, a limiting sleeve 25, a compression spring 26, a secondary touch lever 27, a miniature conductive silicone disc 28, an end effector housing 29, a miniature servo motor 210, an eccentric wheel 211, a connecting rod 212, a main touch lever 213, a positioning sleeve 214, and a support column 215. The drive motor 21 is installed inside the X-axis lead screw slider 132. The slot mounting bracket 22 is fixedly connected to the X-axis lead screw slider 132. The slotted disc 24 is rotatably connected to the lower end of the slot mounting bracket 22. The output shaft of the drive motor 21 is connected to the slotted disc 24 to drive the slotted disc 24 relative to the slot mounting bracket 22. Rotation; the slot fixing frame 22 has multiple first guide grooves 216 evenly distributed around its circumference. Each first guide groove 216 is a radially extending long groove from the center of the slot fixing frame to its edge. The first guide grooves 216 open downwards and connect to the slotted disc 24. A limiting slider 23 is installed in the first guide groove of the slot fixing frame 22 and can move along the length of the first guide groove 216. A limiting sleeve 25 is fixedly connected to the limiting slider 23. The slotted disc 24 has multiple involute-shaped second guide grooves 217. The two ends of the second guide grooves 217 are at different distances from the slotted disc 24. The limiting sleeve 25 slides within the second guide grooves 217, allowing the second guide grooves 217 to rotate. 17 Under the limitation of the first guide groove 216, the limiting sleeve 25 can be brought closer to or further away from the center of the groove disk 24; the compression spring 26 is installed inside the limiting sleeve 25; the secondary touch rod 27 is vertically slidably installed at the lower end of the limiting sleeve 25 and the upper end of the secondary touch rod 27 is connected to the lower end of the compression spring 26; the miniature conductive silicone disk 28 is connected to the lower end of the secondary touch rod 27; the end effector housing 29 is coaxially installed and fixed to the slot fixing bracket 22; the support column 215 is fixedly connected to the bottom of the end effector housing 29 next to the axis; the miniature servo motor 210 is fixedly installed at the top of the support column 215; the eccentric wheel 211 is connected to the miniature servo motor 210; the upper end of the connecting rod 212 is connected to the eccentric wheel 211. The lower end of the connecting rod 212 is connected to the main touch rod 213; the main touch rod 213 is coaxially installed inside the positioning sleeve 214 and can extend downward through the positioning sleeve 214 and the end effector housing 29; the positioning sleeve 214 is located at the inner center of the bottom of the end effector housing 29, and the bottom plate of the end effector housing 29 is provided with a plurality of third guide grooves 218, the third guide grooves 218 are open from top to bottom, the third guide grooves 218 correspond one-to-one with the second guide grooves 217 and are parallel to each other, the auxiliary touch rod extends downward from the third guide groove 218 and can move along the length direction of the third guide groove 218; the micro conductive silicone disk 28 is fixedly connected to the lower end of the main touch rod 213.

[0076] like Figure 1 , 5As shown in Figure 6, the lifting clamping mechanism includes: a rear clamping arm 41, a pressure sensor 42, a stabilizing base 43, a left rack 44, a right rack 45, a drive gear 46, a bus-type servo motor 47, a front clamping arm 48, and a cover plate 49; the bus-type servo motor 47 is installed inside the moving platform 19; the stabilizing base 43 is fixedly connected to the upper end of the moving platform 19, and the stabilizing base 43 has a rectangular sliding groove extending along the Y-axis that is open at both ends, and the bottoms of the front and rear clamping arms slide in the rectangular sliding groove to play a stabilizing role; the drive gear 46 is connected to the bus-type servo motor 47; the left rack 44 meshes with the drive gear 46 on the left; the right rack 45 meshes with the drive gear 46 on the right; the right rack 45 is fixedly connected to the rear clamping arm 41 and its other end passes through the through hole on the front clamping arm 48, and the right rack 45... The left rack 44 is slidably engaged with the through hole; the left rack 44 is fixedly connected to the front clamping arm 48 and its other end passes through the through hole on the rear clamping arm 41, and the left rack 44 is slidably engaged with the through hole; the pressure sensors 42 are all installed on the inner side of the rear clamping arm 41 and the front clamping arm 48; the cover plate 49 is installed on the upper end of the stable base 43, and the cover plate has two through and parallel sliding grooves. The connection between the bottom and the top of the front clamping arm 48 and the rear clamping arm 41 is two support rods. The two support rods of each of the front and rear clamping arms pass through the sliding grooves on the cover plate and are slidably engaged with the sliding grooves. The cover plate 49 not only plays a stabilizing role, but also hides the gears, racks and other parts in the lower part, and only exposes the clamping parts of the two clamping arms in the upper part, which increases the simplicity and aesthetics of the overall appearance of the equipment.

[0077] As one embodiment of the clamping arm, such as Figure 6 As shown, it includes a lower support portion that slides within a rectangular groove of a stable base 43 and a groove of a cover plate 49; a middle fitting portion having a first arc-shaped portion with an outward opening connected to the upper end of the support portion and a second arc-shaped portion with an inward opening connected to the upper end of the first arc-shaped portion, the inward opening facing towards another clamping arm and the outward opening facing away from another clamping arm; and an upper clamping portion, which is a rectangular plate with rounded corners at the upper end, the lower end of which is connected to the upper end of the second arc-shaped portion, and multiple pressure sensors 42 arrayed on the inner surface of the rectangular plate. In this embodiment, the two clamping arms combine to form a human-like two-handed holding posture. This holding arc design effectively disperses the screen's weight, increases friction, and prevents the screen from falling off during clamping.

[0078] When using this utility model: Step one, combine... Figure 1 Before starting the device, the angle of the steering camera 3 is adjusted by adjusting the metal flexible hose 32 to adjust the pair of industrial cameras 31 to a suitable angle, thereby monitoring the vehicle screen.

[0079] Step two, combined Figure 5 The host computer controls the bus-type servo motor 47 to rotate, driving the drive gear 46 to move. The drive gear 46 meshes with the right rack 45 and the left rack 44. This causes the right rack 45 and the left rack 44 to move in opposite directions, thereby causing the rear clamping arm 41 and the front clamping arm 48 to move closer together. At this time, the vehicle screen is placed between the rear clamping arm 41 and the front clamping arm 48. When the pressure sensor 42 reaches a certain pressure value, the bus-type servo motor 47 stops rotating. The drive gear 46, the right rack 45, the left rack 44, the rear clamping arm 41, and the front clamping arm 48 all stop moving. This achieves the rear clamping arm 41 and the front clamping arm 48 lifting and clamping the vehicle screen. The lifting clamping base 4 ensures the stability of the vehicle screen in subsequent steps.

[0080] Step 3, combined Figure 1 , Figure 2 The X-axis slider 128 moves the end effector 2 to a designated position. For example, the end effector 2 needs to be moved to a position (x, y, z) with the moving platform 19 as the reference plane. The right Z-axis stepper motor 17 drives the right Z-axis lead screw 13 to rotate, causing the right Z-axis lead screw slider 15 to move up and down between the right Z-axis slider 14 and the right Z-axis lead screw 13 to the position (0, 0, z). Simultaneously, the left Z-axis stepper motor 133 drives the left Z-axis lead screw 124 to rotate, causing the left Z-axis lead screw slider 126 to move up and down between the left Z-axis slider 125 and the left Z-axis lead screw 124 to the position (0, 0, z). The X-axis lead screw 129 and the X-axis slider 128 are installed between the left Z-axis lead screw slider 126 and the right Z-axis lead screw slider 15. This allows the X-axis lead screw 129 and the X-axis slider 128 to move to the z position. Simultaneously, the X-axis stepper motor 127 drives the X-axis lead screw 129 to rotate, causing the X-axis lead screw slider 132 to move left and right on the X-axis lead screw 129 and X-axis slide bar 128 to the (x, 0, z) position; at the same time, the Y-axis stepper motor 123 drives the Y-axis lead screw 121 to rotate, causing the moving platform 19 to move back and forth on the left Y-axis slide bar 120, right Y-axis slide bar 122, and Y-axis lead screw 121. This moves the X-axis lead screw slider 132 to the (x, y, z) position. The end effector 2 is fixedly connected to the X-axis lead screw slider 132. Thus, the end effector 2 is moved to the position (x, y, z) with the moving platform 19 as the reference plane.

[0081] Step four, combined Figure 3 , Figure 4When only the main touch lever 213 is needed to perform a click test on the vehicle screen, the micro servo motor 210 drives the eccentric wheel 211 to rotate. The eccentric wheel 211 drives the connecting rod 212 to push the main touch lever 213. The main touch lever 213 is coaxially mounted within the positioning sleeve 214, allowing it to only perform up-and-down reciprocating movements. This pushes the main touch lever 213 to its lowest position. At this time, the five auxiliary touch levers 27 gather around the main touch lever 213, and the exposed length of the five auxiliary touch levers 27 is less than the length of the main touch lever 213. Referring to step three, the X-axis slide bar 128 moves the end effector 2 to the designated position. Simultaneously, the micro conductive silicone disk 28 connected to the main touch lever 213 is energized to achieve a click effect, thus performing a click test on the screen.

[0082] Step 5, combined Figure 3 , Figure 4 When multi-contact and multi-contact sliding tests are required, refer to step three: the X-axis slide bar 128 drives the end effector 2 to move to the designated position. Refer to step four: the micro servo motor 210 drives the eccentric wheel 211 to rotate. The eccentric wheel 211 drives the connecting rod 212 to push the main touch control rod 213. The main touch control rod 213 is coaxially mounted within the positioning sleeve 214, allowing it to only perform up-and-down reciprocating motion. When the main touch control rod 213 is pushed to its highest point, the exposed length of the five auxiliary touch control rods 27 is greater than the length of the main touch control rod 213. The drive motor 21 drives the slotted disk 24 to rotate. The limiting sleeves 25 of the five auxiliary touch control rods 27 are installed in the second guide groove of the slotted disk 24. The five auxiliary touch control rods 27 are interconnected with the limiting sleeves 25 and the limiting slider 23. The slotted disk 24 rotates, pushing the five auxiliary touch control rods 27 to move. Five secondary touch levers 27 drive the movement of limiting sliders 23, which are located within the first guide groove of the slot fixing frame 22. The limiting sliders 23 can only move along the first guide groove of the slot fixing frame 22. This forces the five secondary touch levers 27 to move linearly within the track of the slot fixing frame 22, achieving a relative convergence and dispersion of the five secondary touch levers 27. Simultaneously, they are energized with the miniature conductive silicone pads 28 connected to the secondary touch levers 27 to achieve a sliding click effect.

[0083] Step Six, Combining Figure 3 , Figure 4 When testing a curved screen with a certain curvature, refer to steps five and three. The X-axis slide bar 128 drives the end effector 2 to move to the designated position. During movement, the five auxiliary touch levers 27 are concentrically mounted with compression springs 26 within the limiting sleeve 25. As the five auxiliary touch levers 27 slide, the compression springs 26 freely extend and retract, giving the five auxiliary touch levers 27 a certain degree of rebound function, thus adapting to the curved screen.

[0084] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

Claims

1. A multi-touch vehicle infotainment screen detection device, characterized in that, include: The coordinate motion system includes linear motion modules for the X, Y, and Z axes that are orthogonally set. End effector (2), used to perform touch testing on the screen, includes: a) Multiple elastic touch components arranged in a surrounding manner, each component including a limiting sleeve (25) with a built-in compression spring (26), a secondary touch rod (27) that can be axially displaced within the limiting sleeve (25), and a conductive silicone pad (28) at the end of the secondary touch rod (27). b) A dynamic adjustment mechanism is used to adjust the scaling of the relative positions between multiple flexible touch components; The lifting clamping structure (4) includes a front clamping arm (48), a rear clamping arm (41), and a clamping drive mechanism that drives the front and rear clamping arms to move closer or further apart from each other. The coordinate motion system drives the end effector (2) and the lifting clamping structure (4) to achieve mutual positional movement of the three axes.

2. The multi-touch vehicle infotainment screen detection device according to claim 1, characterized in that, The vehicle screen detection device also includes a turn-around camera (3) for monitoring the screen detection process.

3. The multi-touch vehicle infotainment screen detection device according to claim 1, characterized in that, The end effector (2) also includes a central main touch component, which has an eccentric linkage mechanism driven by a micro servo motor (210) to realize the telescopic movement of the main touch stick (213), and the end of the main touch stick (213) is provided with a conductive silicone pad (28). The main touch component is located at the center of the area composed of multiple elastic touch components.

4. The multi-touch vehicle infotainment screen detection device according to claim 1, characterized in that, The Z-axis linear motion module drives the X-axis linear motion module to perform linear motion along the Z-axis direction; The X-axis linear motion module drives the end effector (2) to move linearly along the X-axis direction; The Y-axis linear motion module drives the lifting clamping structure (4) to move linearly along the Y-axis direction. Composition: The coordinate motion system drives the end effector (2) and the lifting clamping structure (4) to achieve mutual positional movement of three axes.

5. The multi-touch vehicle infotainment screen detection device according to claim 1, characterized in that, The dynamic adjustment mechanism of the end effector (2) includes: The card slot fixing frame (22) has a plurality of first guide grooves (216) evenly distributed in a circular interval on the card slot fixing frame (22). The first guide groove (216) is a long strip groove extending from the center of the card slot fixing frame (22) to the edge. A slotted disc (24) is rotatably connected to a slot fixing frame (22). The slotted disc (24) has multiple involute-shaped second guide grooves (217). The second guide grooves (217) correspond one-to-one with the first guide grooves (216), and the first guide grooves (216) and the second guide grooves (217) are arranged along the Z-axis direction. Both the first guide grooves (216) and the second guide grooves (217) are opened along the Z-axis direction. A limiting slider (23) is fixedly connected to a limiting sleeve (25). The limiting slider (23) is installed in the first guide groove (216) and can move within the first guide groove (216). The limiting sleeve (25) is slidably connected within the second guide groove (217). A drive motor (21) is connected to a slotted disk (24) on its output shaft to drive the slotted disk (24) to rotate.

6. The multi-touch vehicle infotainment screen detection device according to claim 1, characterized in that, The clamping drive mechanism of the lifting clamping structure (4) includes: The mobile platform (19) is driven by the Y-axis linear motion module to move linearly along the Y-axis direction; Left rack (44), right rack (45), drive gear (46) and bus-type servo (47), the left and right racks are located on the left and right sides of the drive gear (46) respectively and mesh with the drive gear (46), the drive gear (46) is driven by the bus-type servo (47); The left rack (44) forms a rigid connection with the front clamping arm (48) and forms a dynamic fit through the linear sliding pair of the rear clamping arm (41); The right rack (45) forms a rigid connection with the rear clamping arm (41) and forms a dynamic fit with the linear sliding pair that passes through the front clamping arm (48).

7. The multi-touch vehicle infotainment screen detection device according to claim 1, characterized in that, Pressure sensors (42) are provided on the clamping surfaces of the front clamping arm (48) and the rear clamping arm (41).

8. The multi-touch vehicle infotainment screen detection device according to claim 2, characterized in that, The turning camera (3) consists of an industrial camera (31) and a metal hose (32), the metal hose (32) having a fixed end and the other end connected to the industrial camera (31).

9. The multi-touch vehicle infotainment screen detection device according to claim 3, characterized in that, The end effector (2) also includes an end effector (2) housing, which is coaxially fixed on the slot fixing bracket (22), and the main touch stick (213) and the secondary touch stick (27) both extend downward out of the end effector (2) housing.

10. The multi-touch vehicle infotainment screen detection device according to claim 1, characterized in that, The clamping arm includes: The lower support section is used to connect the clamping drive mechanism; The middle bonding part has a first arc-shaped part with an outward opening connected to the upper end of the lower supporting part, and a second arc-shaped part with an inward opening connected to the upper end of the first arc-shaped part, which is used to support the screen. The upper clamping part is connected to the upper end of the middle fitting part and extends upward along the Z-axis direction for clamping the screen.

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