Touch screen multi-point testing device

Abstract

The invention relates to the technical field of touch screen testing, and particularly discloses a touch screen multi-point testing device which comprises a testing machine, the testing machine comprises a device body, an operation panel and a control button, and a testing assembly is arranged on the upper surface of the testing machine. According to the touch screen testing device, appropriate pressure can be kept under different touch screens, screen body scratching is avoided, the angle of a testing pen can be detected, an alarm is given out when the testing pen inclines, workers can maintain the touch screens in time, stable clamping of the touch screens can be improved through the clamping assembly, and the working efficiency is improved. According to the multi-point touch testing device, the probability of displacement and shaking in the testing process is reduced, the contact positioning deviation of multi-point touch testing is avoided, an alarm can be given out in time when displacement and shaking occur, secondary clamping can be conducted, and rapid maintenance by workers is facilitated.

Description

Technical Field

[0001] This application relates to the field of touch screen testing technology, and in particular to a multi-point touch screen testing device. Background Technology

[0002] A touchscreen is an intelligent terminal input device that integrates display and touch interaction functions. With its intuitive and convenient operation, it has been deeply integrated into diverse fields such as consumer electronics, industrial control, and medical equipment. The widespread adoption of capacitive and other multi-touch technologies has enabled touchscreens to accurately respond to the position and movement of multiple simultaneous contact points, greatly enriching human-computer interaction methods. Users are increasingly demanding higher sensitivity, accuracy, and gesture recognition reliability from multi-touch systems. Multi-touch technology requires precise detection of the position and movement of multiple simultaneous contact points, and its performance directly determines the device's interactive experience. Therefore, multi-touch testing before shipment has become a critical step in touchscreen production. Consequently, there is an urgent need for a multi-touch testing device to meet the testing requirements of large-scale production.

[0003] The existing technology still has the following problems:

[0004] 1. Existing touch testing devices with multiple test pens cannot be adapted to touchscreens of different thicknesses. Improper contact pressure can easily lead to test distortion or scratch the screen. It is difficult to simulate the touch intensity of different users, resulting in the inability to reproduce the multi-point interaction effect in real usage scenarios, which affects the comprehensiveness of the test. In addition, the test pen tilts during long-term use, causing abnormal touch contact area and pressure distribution, which can cause the test system to misjudge the position and number of touch points, reducing the accuracy of the test.

[0005] 2. Existing touch testing devices do not have a clamping mechanism with alarm function. During the test, the touch screen is prone to displacement and shaking, which leads to the positioning deviation of the touch point in multi-touch testing. Moreover, it is difficult to detect the shaking in time, resulting in inaccurate test data that cannot truly reflect the product performance. Unstable clamping may cause uneven force on the touch screen, which not only affects the detection accuracy of touch sensitivity, but may also damage the screen due to excessive local stress, reducing the test yield. Summary of the Invention

[0006] To overcome the shortcomings of multiple test pens being unable to adapt to touchscreens of different thicknesses, easily causing test distortion or scratching the screen due to improper contact pressure, and being unable to simulate the touch force of different users, resulting in an inability to reproduce the multi-point interaction effect in real-world usage scenarios and affecting the comprehensiveness of the test, this invention aims to provide a multi-point touchscreen testing device to solve the above-mentioned deficiencies. Furthermore, the test pens tend to tilt during prolonged use, leading to abnormal touch contact area and pressure distribution, causing the testing system to misjudge the position and number of touch points, reducing test accuracy. Additionally, the touch testing device lacks an alarm-enabled clamping mechanism, making the touchscreen prone to displacement and shaking during testing, resulting in touch point positioning deviations in multi-touch tests, which are difficult to detect in time, thus making the test data inaccurate and unable to truly reflect product performance. Unstable clamping may cause uneven force on the touchscreen, affecting not only the accuracy of touch sensitivity detection but also potentially damaging the screen due to excessive local stress, reducing test yield.

[0007] This application provides a multi-point testing device for a touch screen, including a testing machine. The testing machine includes a main body, an operation panel, and control buttons. A testing component is provided on the upper surface of the testing machine, and a clamping component is also provided on the upper surface of the testing machine. The outer surface of the clamping component holds the touch screen. The testing component includes a testing frame. A first motor is provided on the inner wall of the testing frame. A turntable is rotatably connected to the inner cavity of the testing frame. A first drive rod is slidably connected to the outer surface of the turntable. An insert rod is threadedly connected to the inner cavity of the first drive rod. A moving plate is slidably connected to the inner cavity of the testing frame. A first connecting frame is fixedly installed on the outer surface of the moving plate. A horizontal detection mechanism is provided at the top of the first connecting frame, and an adjustment mechanism is provided at the bottom of the first connecting frame. A sliding groove is opened in the middle part of the moving plate. A scribing pen and a limiting plate are respectively provided at the bottom of the adjustment mechanism. A connecting plate is fixedly installed on the top and bottom walls of the testing frame.

[0008] Furthermore, the upper surface of the test frame and the test machine are fixedly connected, the output end of the first motor is sleeved with the turntable, the outer surface of the turntable is provided with grooves, the grooves are evenly distributed on the turntable, and the insertion rod passes through the first drive rod and engages with the groove. The first drive rod is slidably connected with the slide groove. There are six adjustment mechanisms, five of which are fixedly connected with the scribing pen, and the other is fixedly connected with the limit plate. The scribing pen is slidably connected with the limit plate, and the scribing pen is electrically connected with the operation panel.

[0009] Furthermore, the horizontal detection mechanism includes a connecting seat, a first button on the outer surface of the connecting seat, a first alarm fixedly mounted on the outer surface of the connecting seat, the first button and the first alarm being electrically connected, and pressing the first button controlling the first alarm to sound an alarm, a slide being slidably connected to the inner cavity of the connecting seat, a first spring being sleeved on the outer surface of the slide, a pressure wheel being rotatably connected to the inner cavity of the slide, a balance block being rotatably connected to the inner cavity of the connecting seat, the first spring being located between the inner wall of the connecting seat and the slide, the middle part of the pressure wheel and the balance block being tightly fitted, the balance block being symmetrically distributed about the pressure wheel, and the rotation of the balance block squeezing the pressure wheel, a balance plate being fixedly mounted on the outer surface of the balance block, rolling rods being rotatably connected to both ends of the balance plate, the rolling rods being tightly fitted to the lower surface of the connecting plate, the connecting seat and the first connecting frame being fixedly connected, a pressing rod being fixedly mounted on the outer surface of the balance block, there are two first buttons, and the pressing rod is located between the two first buttons.

[0010] Furthermore, the adjustment mechanism includes a first fixed block, a first threaded rod rotatably connected to the inner cavity of the first fixed block, a first slider slidably connected to the lower surface of the first fixed block, a second drive rod fixedly installed on the outer surface of the first slider, a storage rod fixedly installed on the lower surface of the first fixed block, a first adjusting rod slidably connected to the inner cavity of the storage rod, a lifting plate fixedly installed at the bottom end of the first adjusting rod, a drive groove formed on the outer surface of the lifting plate, the first slider and the first threaded rod being threadedly connected, the second drive rod and the drive groove being slidably connected, the upper surface of the first fixed block and the lower surface of the first connecting frame being fixedly connected, the limiting plate and the lower surface of one of the lifting plates being fixedly connected, and the lower surfaces of the remaining lifting plates being fixedly connected to the marking pen.

[0011] Furthermore, the clamping assembly includes a support plate, a second motor is provided on the outer surface of the support plate, a second threaded rod is rotatably connected to the inner cavity of the support plate, the output end of the second motor is sleeved with the second threaded rod, clamping plates are slidably connected to both ends of the support plate, the clamping plates are threadedly connected to the second threaded rod, and the threads of the second threaded rod are opposite in direction, limit rods are fixedly installed in the inner cavities of both ends of the clamping plate, a clamping mechanism is provided in the middle part of the outer surface of the clamping plate, and anti-slip mechanisms are provided at both ends of the clamping plate.

[0012] Furthermore, the clamping mechanism includes an adjusting frame, a third motor is provided on the outer surface of the adjusting frame, a third threaded rod is rotatably connected to the inner cavity of the adjusting frame, the output end of the third motor is sleeved with the third threaded rod, adjusting blocks are slidably connected to both ends of the adjusting frame, the adjusting blocks and the third threaded rod are threadedly connected, and the thread directions at both ends of the third threaded rod are opposite, a fixing rod is fixedly installed on the outer surface of the adjusting block, a connecting block is fixedly installed at the end of the fixing rod away from the adjusting block, and the middle part of the adjusting frame and the clamping plate are fixedly connected.

[0013] Furthermore, the anti-slip mechanism includes a clamping arm, which is fixedly connected to a connecting block, and the clamping arm is slidably connected to a limiting rod. A second slider is fixedly installed on the outer surface of the clamping arm, and the second slider is slidably connected to the limiting rod. A flexible limiting mechanism is provided in the inner cavity of the clamping arm, and a pressing mechanism is provided on the outer surface of the clamping arm.

[0014] Furthermore, the flexible limiting mechanism includes a floating block, a groove on the outer surface of the floating block, a second spring in the inner cavity of the floating block, a flexible clamping block slidably connected to the inner cavity of the floating block, the second spring being located between the inner walls of the floating block and the flexible clamping block, a slide rod fixedly installed on the outer surface of the floating block, a third spring sleeved on the outer surface of the slide rod, a second fixing block fixedly installed on the outer surface of the clamping arm, an alarm block fixedly installed on the outer surface of the second fixing block, a locking rod slidably connected to the inner cavity of the alarm block, a locking ball movably connected to one end of the locking rod, a pressing block fixedly installed on the outer surface of the locking rod, a second button on the outer surface of the alarm block, a second alarm fixedly installed on the outer surface of the alarm block, and a fourth spring at the end of the locking rod away from the locking ball.

[0015] Furthermore, the flexible clamping block protrudes from the outside of the clamping arm, the floating block and the clamping arm are slidably connected, the slide rod and the clamping arm are slidably connected, the third spring is located between the inner wall of the clamping arm and the floating block, the locking ball and the locking groove engage, the squeezing block and the alarm block are slidably connected, the second button and the second alarm are electrically connected, and pressing the second button controls the second alarm to sound an alarm, the fourth spring is located between the inner walls of the squeezing block and the second fixed block, and there is a gap between the squeezing block and the second button.

[0016] Furthermore, the clamping mechanism includes a second connecting frame, which is fixedly connected to the clamping arm. A spring rod is slidably connected to the inner cavity of the second connecting frame. A second adjusting rod is rotatably connected to the bottom end of the spring rod via a thread. A fifth spring is sleeved on the outer surface of the spring rod. A clamping wheel is rotatably connected to the end of the spring rod away from the second adjusting rod. A connecting rod is fixedly installed on the outer surface of the floating block. A clamping frame is fixedly installed at the end of the connecting rod away from the floating block. Both ends of the clamping frame are inclined surfaces, and the inclined surfaces are in contact with the clamping wheel.

[0017] The technical solution provided in this application has at least the following technical effects or advantages:

[0018] 1. By employing a testing component, this invention effectively solves the problems of existing touch testing devices where multiple test pens cannot adapt to touchscreens of different thicknesses, easily leading to test distortion or scratches due to improper contact pressure. It also makes it difficult to simulate the touch intensity of different users, resulting in an inability to reproduce the multi-point interaction effect in real-world usage scenarios and affecting the comprehensiveness of the test. Furthermore, the test pen tilts during prolonged use, causing abnormal touch contact area and pressure distribution, leading to misjudgments of touch point position and number by the testing system, reducing test accuracy. This invention, through its testing component, can adjust the pressure of the test pen according to the touchscreen specifications, maintaining appropriate pressure under different touchscreens, avoiding screen scratches, and simulating the contact intensity of different users. This allows for a realistic reproduction of multi-point interaction effects in usage scenarios, improving the comprehensiveness of the test. In addition, it can detect the angle of the test pen and issue an alarm when the pen tilts, facilitating timely maintenance by staff. This ensures that the touch area and pressure distribution meet requirements, avoids misjudgments of touch point position and number, and improves test accuracy.

[0019] 2. By employing a clamping assembly, this invention effectively solves the problem of existing touch testing devices lacking an alarm-enabled clamping mechanism. During testing, the touchscreen is prone to displacement and shaking, leading to touch point positioning deviations in multi-touch testing. Furthermore, these vibrations are difficult to detect promptly, resulting in inaccurate test data that fails to accurately reflect product performance. Unstable clamping can cause uneven force on the touchscreen, affecting not only the accuracy of touch sensitivity detection but also potentially damaging the screen due to excessive local stress, thus reducing test yield. This invention, through its clamping assembly, improves the stability of the touchscreen clamping, reducing the probability of displacement and shaking during testing, avoiding touch point positioning deviations in multi-touch testing. It also provides timely alarms and re-clamping in case of displacement or shaking, facilitating quick maintenance by staff, improving the accuracy of test data, and enabling a true assessment of product performance. Simultaneously, it prevents uneven force on the touchscreen caused by unstable clamping, preventing impact on touch sensitivity detection accuracy, preventing excessive local stress from damaging the screen, and ultimately improving test yield. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure in Embodiment 1 of this application;

[0021] Figure 2 This is a schematic diagram of the test component structure in Embodiment 1 of this application;

[0022] Figure 3 This is a schematic diagram of the mobile frame structure in Embodiment 1 of this application;

[0023] Figure 4 This is a schematic diagram of the limiting plate structure in Embodiment 1 of this application;

[0024] Figure 5 This is a schematic diagram of the horizontal detection mechanism structure in Embodiment 1 of this application;

[0025] Figure 6 This is a schematic cross-sectional view of the connector structure in Embodiment 1 of this application;

[0026] Figure 7 This is a schematic diagram of the adjustment mechanism structure in Embodiment 1 of this application;

[0027] Figure 8 This is a schematic diagram of the clamping component structure in Embodiment 2 of this application;

[0028] Figure 9 This is a schematic diagram of the clamping plate structure in Embodiment 2 of this application;

[0029] Figure 10 This is a schematic diagram of the clamping mechanism structure in Embodiment 2 of this application;

[0030] Figure 11 This is a schematic diagram of the anti-slip mechanism in Embodiment 2 of this application;

[0031] Figure 12 This is a schematic diagram of the clamping mechanism structure in Embodiment 2 of this application;

[0032] Figure 13 This is a schematic diagram of the cross-sectional structure of the flexible clamping block in Embodiment 2 of this application;

[0033] Figure 14 This is a schematic diagram of the alarm block structure in Embodiment 2 of this application.

[0034] In the diagram: 1. Testing machine; 2. Testing assembly; 21. Testing frame; 22. First motor; 23. Turntable; 24. First drive rod; 25. Insert rod; 26. Moving plate; 27. First connecting frame; 28. Horizontal detection mechanism; 281. Connecting seat; 282. First button; 283. First alarm; 284. Slide; 285. First spring; 286. Pressure wheel; 287. Balance block; 288. Balance plate; 289. Rolling rod; 2810. Extrusion rod; 29. ​​Adjustment mechanism; 291. First fixing block; 292. First threaded rod; 293. First slider; 294. Second drive rod; 295. Storage rod; 296. First adjusting rod; 297. Lifting plate; 298. Drive groove; 210. Slide groove; 211. Marking pen; 212. Limiting plate; 213. Connecting plate; 3. Clamping assembly; 31. Support plate; 32. Second motor; 33. Clamping plate; 34. Limiting... Positioning rod; 35. Clamping mechanism; 351. Adjusting frame; 352. Third motor; 353. Adjusting block; 354. Fixing rod; 355. Connecting block; 36. Anti-slip mechanism; 361. Clamping arm; 362. Second slider; 363. Flexible limiting mechanism; 3631. Floating block; 3632. Slot; 3633. Second spring; 3634. Flexible clamping block; 3635. Slide rod; 3636. Third spring; 3637. Second fixing block 3638. Alarm block; 3639. Locking lever; 36310. Locking ball; 36311. Squeezing block; 36312. Second button; 36313. Second alarm; 36314. Fourth spring; 364. Pressing mechanism; 3641. Second connecting frame; 3642. Elastic rod; 3643. Second adjusting rod; 3644. Fifth spring; 3645. Pressing wheel; 3646. Connecting rod; 3647. Pressing frame; 4. Touch screen. Detailed Implementation

[0035] For testing devices where multiple test pens cannot be adapted to touchscreens of different thicknesses, this invention uses a testing component to adjust the pressure of the test pen according to the touchscreen specifications, ensuring appropriate pressure is maintained under different touchscreens, preventing screen scratches, and simulating the contact force of different users. For devices without an alarm-enabled clamping mechanism, where the touchscreen is prone to displacement and shaking during testing, this invention uses a clamping component to improve stable clamping of the touchscreen, reducing the probability of displacement and shaking during testing, avoiding contact point positioning deviations in multi-touch testing, and promptly issuing an alarm and performing secondary clamping when displacement or shaking occurs, facilitating quick maintenance by staff.

[0036] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0037] Example 1:

[0038] Please see Figure 1 As shown, a multi-touch screen testing device includes a testing machine 1, which comprises a main body, an operation panel, and control buttons. A testing component 2 and a clamping component 3 are provided on the upper surface of the testing machine 1. The outer surface of the clamping component 3 holds a touch screen 4. The touch screen 4 is placed in the clamping component 3 for clamping and fixing. The touch screen 4 is tested by drawing multiple lines on the touch screen 4 through the testing component 2, thereby simulating the user's daily multi-point drag gesture interaction scenario, intuitively detecting the positioning accuracy, trajectory smoothness, and touch point recognition stability of multi-touch, and transmitting the test data to the operation panel to realize the visual monitoring of the testing process.

[0039] Please see Figure 2 , Figure 3 and Figure 4As shown, the test assembly 2 includes a test frame 21. A first motor 22 is installed on the inner wall of the test frame 21. A turntable 23 is rotatably connected to the inner cavity of the test frame 21. A first drive rod 24 is slidably connected to the outer surface of the turntable 23. A plug rod 25 is threadedly connected to the inner cavity of the first drive rod 24. A moving plate 26 is slidably connected to the inner cavity of the test frame 21. A first connecting frame 27 is fixedly installed on the outer surface of the moving plate 26. A horizontal detection mechanism 28 is installed at the top of the first connecting frame 27. An adjustment mechanism 29 is installed at the bottom of the first connecting frame 27. A groove 210 is opened in the middle part of the moving plate 26. A marking pen 211 is installed at the bottom of the adjustment mechanism 29. The bottom of the marking pen 211 and the limiting plate 212 are made of electro-rubber material to ensure contact stability. A connecting plate 213 is fixedly installed on the top bottom wall of the test frame 21. The test frame 21 and the upper surface of the test machine 1 are fixedly connected. The output end of the first motor 22 is sleeved with the turntable 23. Multiple grooves are opened on the outer surface of the turntable 23. The grooves are evenly distributed on the turntable 23, and the insertion rod 25 passes through the first drive rod 24 and engages with the groove. The insertion rod 25 can be disengaged from the groove, and the position of the first drive rod 24 on the turntable 23 can be adjusted by sliding the first drive rod 24. After the position is adjusted, the insertion rod 25 is engaged with the groove again. When the turntable 23 rotates, the moving plate 26 moves a different distance, which can be adjusted according to the size of the display screen and the testing requirements. The first drive rod 24 is slidably connected to the slide groove 210. There are six adjustment mechanisms 29, five of which are fixedly connected to the scribing pen 211, and the other is fixedly connected to the limiting plate 212. The scribing pen 211 and the limiting plate 212 are slidably connected. The scribing pen 211 is electrically connected to the operation panel. When testing touch screens 4 of different thicknesses, the height of the limiting plate 212 and the scribing pen 211 is adjusted by the adjustment mechanism 29. The limiting plate 212 is used to limit the scribing pen 211, so that multiple scribing pens 211 and the touch screen are connected. The contact force of screen 4 remains equal. The operation of the first motor 22 drives the turntable 23 to rotate in the inner cavity of the test frame 21. The rotation of the turntable 23 drives the first drive rod 24 to slide in the inner cavity of the slide groove 210. The sliding of the first drive rod 24 drives the moving plate 26 to move back and forth in the inner cavity of the test frame 21. This causes the moving plate 26 to drive the first connecting frame 27 to move. The movement of the first connecting frame 27 drives the drawing pen 211 to draw back and forth on the touch screen 4, thereby intuitively detecting the smoothness of the multi-touch trajectory and the stability of the touch point recognition. The connecting plate 213 is used to detect whether the drawing pen 211 is tilted, so as to avoid damage to the touch screen 4 caused by the tilting of the drawing pen 211.

[0040] Please see Figure 3 , Figure 5 and Figure 6As shown, the horizontal detection mechanism 28 includes a connecting seat 281. A first button 282 is provided on the outer surface of the connecting seat 281. A first alarm 283 is fixedly installed on the outer surface of the connecting seat 281. The first button 282 and the first alarm 283 are electrically connected, and pressing the first button 282 controls the first alarm 283 to sound an alarm. A slide 284 is slidably connected to the inner cavity of the connecting seat 281. A first spring 285 is sleeved on the outer surface of the slide 284. A pressure wheel 286 is rotatably connected to the inner cavity of the slide 284. A balance block 287 is rotatably connected to the inner cavity of the connecting seat 281. The first spring 285 is located between the inner wall of the connecting seat 281 and the slide 284. The middle part of the pressure roller 286 and the balance block 287 are tightly fitted together. The balance block 287 is symmetrically distributed about the pressure roller 286, and the rotation of the balance block 287 compresses the pressure roller 286. A balance plate 288 is fixedly installed on the outer surface of the balance block 287. Rolling rods 289 are rotatably connected to both ends of the balance plate 288. The rolling rods 289 are tightly fitted with the lower surface of the connecting plate 213. The connecting seat 281 and the first connecting frame 27 are fixedly connected. A compression spring is fixedly installed on the outer surface of the balance block 287. The lever 2810 has two first buttons 282, with the pressing lever 2810 located between the two first buttons 282. When the first connecting frame 27 reciprocates, it drives the connecting seat 281 to move, causing the rolling rod 289 to roll on the lower surface of the connecting plate 213 when the marking pen 211 is marking lines. When the marking pen 211 tilts, it causes the angle of the first connecting frame 27 to deflect, which in turn causes the angle of the connecting seat 281 to deflect, thus causing the angle of the balance plate 288 to deflect. At this time, the connecting plate 213 presses against the rolling rod 289, causing the balance block 287 to move on the connecting seat 281. The rotation of the inner cavity causes the balance block 287 to compress the pressure wheel 286 and drive the slide block 284 to slide within the inner cavity of the connecting seat 281. At the same time, the slide block 284 compresses the first spring 285. The angle deflection of the balance block 287 causes the compression rod 2810 to compress the first button 282, thereby causing the first alarm 283 to sound an alarm, reminding the staff that the angle of the marking pen 211 has deflected and needs to be adjusted. This ensures that the touch area and pressure distribution of the marking pen 211 meet the requirements, avoids misjudgment of the position and number of touch points, and improves the accuracy of the test.

[0041] Please see Figure 4 and Figure 7As shown, the adjustment mechanism 29 includes a first fixed block 291, a first threaded rod 292 rotatably connected to the inner cavity of the first fixed block 291, a first slider 293 slidably connected to the lower surface of the first fixed block 291, a second drive rod 294 fixedly mounted on the outer surface of the first slider 293, a storage rod 295 fixedly mounted on the lower surface of the first fixed block 291, a first adjusting rod 296 slidably connected to the inner cavity of the storage rod 295, a lifting plate 297 fixedly mounted at the bottom end of the first adjusting rod 296, a drive groove 298 formed on the outer surface of the lifting plate 297, and the first slider 293 and the first threaded rod 292 connected by threads. 4. The first fixed block 291 is slidably connected to the drive groove 298. The upper surface of the first fixed block 291 is fixedly connected to the lower surface of the first connecting frame 27. The limiting plate 212 is fixedly connected to the lower surface of one of the lifting plates 297. The lower surfaces of the remaining lifting plates 297 are fixedly connected to the marking pen 211. The height of the limiting plate 212 and the marking pen 211 is adjusted by the adjusting mechanism 29. That is, rotating the first threaded rod 292 drives the first slider 293 to slide on the lower surface of the first fixed block 291. At this time, the first slider 293 drives the second drive rod 294 to slide in the inner cavity of the drive groove 298, so that the first adjusting rod 296 slides in the inner cavity of the storage rod 295. By changing the distance between the lifting plate 297 and the first fixed block 291, the height of the drawing pen 211 and the limiting plate 212 can be adjusted. The limiting plate 212 limits the drawing pen 211, ensuring that the top wall of the inner cavity of the drawing pen 211 and the outer surface of the limiting plate 212 are in close contact when drawing lines. At this time, all the drawing pens 211 have equal contact force with the touch screen 4. When a small number of drawing pens 211 need to contact the touch screen 4, the adjusting mechanism 29 makes the bottom wall of the inner wall of the drawing pen 211 contact the limiting plate 212, at which point the drawing pen 211 and the touch screen 4 are disengaged. Thus, different numbers of drawing pens 211 can be adjusted according to actual needs. 1. Testing is conducted to achieve controllable multi-point testing. By controlling the limiting plate 212 to limit the marking pen 211, the contact force between the marking pen 211 and the touch screen 4 can be adjusted. That is, the limiting plate 212 acts as a central control to uniformly limit the contact force of the marking pen 211. Similarly, the position of the limiting plate 212 can be adjusted to remove the limiting of the marking pen 211, thereby adjusting the pressure between the marking pen 211 and the touch screen 4. This ensures that appropriate pressure is maintained under different touch screens 4, avoiding scratches on the screen. It simulates the contact force of different users, thus realistically reproducing the multi-point interaction effect in the usage scenario and improving the comprehensiveness of the test.

[0042] Example 2:

[0043] Please see Figure 8 and Figure 9As shown, the clamping assembly 3 includes a support plate 31. A second motor 32 is provided on the outer surface of the support plate 31. A second threaded rod is rotatably connected to the inner cavity of the support plate 31. The output end of the second motor 32 is sleeved with the second threaded rod. A clamping plate 33 is slidably connected to both ends of the support plate 31. The clamping plate 33 and the second threaded rod are threadedly connected, and the threads of the second threaded rod are opposite to each other, which facilitates the clamping plate 33 to clamp the touch screen 4. Limiting rods 34 are fixedly installed in the inner cavities of both ends of the clamping plate 33. A clamping mechanism 35 is provided in the middle part of the outer surface of the clamping plate 33. Anti-slip mechanisms 36 are provided at both ends of the clamping plate 33. The operation of the second motor 32 drives the second threaded rod to rotate, causing the clamping plate 33 to move on the support plate 31 and clamp the touch screen 4. The clamping mechanism 35 drives the anti-slip mechanism 36 to move on the clamping plate 33 and clamp both sides of the touch screen 4, thereby keeping the touch screen 4 stable during testing.

[0044] Please see Figure 9 , Figure 10 and Figure 11 As shown, the clamping mechanism 35 includes an adjusting frame 351. A third motor 352 is provided on the outer surface of the adjusting frame 351. A third threaded rod is rotatably connected to the inner cavity of the adjusting frame 351. The output end of the third motor 352 is sleeved with the third threaded rod. Adjusting blocks 353 are slidably connected to both ends of the adjusting frame 351. The adjusting blocks 353 and the third threaded rod are threadedly connected, and the threads at both ends of the third threaded rod are opposite in direction, which facilitates the clamping arm 361 to fix the touch screen 4. A fixing rod 354 is fixedly installed on the outer surface of the adjusting block 353. A connecting block 355 is fixedly installed on the end of the fixing rod 354 away from the adjusting block 353. The middle part of the adjusting frame 351 and the clamping plate 33 are fixedly connected. The anti-slip mechanism 36 includes a clamping arm 361. The clamping arm 361 and the connecting block 355 are fixedly connected. The clamping arm 361 and the limiting rod 34 are slidably connected. A second slider 362 is fixedly installed on the outer surface of the clamping arm 361. The second slider 362 and the limiting rod 34 are slidably connected. The limiting rod 34 is slidably connected, and the inner cavity of the clamping arm 361 is provided with a flexible limiting mechanism 363. The outer surface of the clamping arm 361 is provided with a pressing mechanism 364. The operation of the third motor 352 drives the third threaded rod to rotate. At this time, the adjusting block 353 slides on the outer surface of the adjusting frame 351, thereby driving the fixed rod 354 to move. The movement of the fixed rod 354 drives the connecting block 355 to move. The movement of the connecting block 355 drives the second slider 362 to slide on the limiting rod 34, so that the clamping arm 361 clamps the side of the touch screen 4. Thus, the clamping plate 33 and the anti-slip mechanism 36 work together to clamp the outer side of the touch screen 4 in all directions, improving the stability of the touch screen 4. The flexible limiting mechanism 363 is used to flexibly limit the touch screen 4 and issue an alarm when the touch screen 4 shakes or displaces. The pressing mechanism 364 is used to clamp the touch screen 4 again when the touch screen 4 shakes or displaces, reducing the displacement of the touch screen 4.

[0045] Please see Figure 8 , Figure 12 , Figure 13 and Figure 14As shown, the flexible limiting mechanism 363 includes a floating block 3631. A slot 3632 is formed on the outer surface of the floating block 3631. A second spring 3633 is disposed within the inner cavity of the floating block 3631. A flexible clamping block 3634 is slidably connected to the inner cavity of the floating block 3631. The second spring 3633 is located between the inner walls of the floating block 3631 and the flexible clamping block 3634. A slide rod 3635 is fixedly installed on the outer surface of the floating block 3631. A third spring 3636 is sleeved on the outer surface of the slide rod 3635. A second fixing block 3637 is fixedly installed on the outer surface of the clamping arm 361. An alarm block 3638 is fixedly installed on the outer surface of the second fixing block 3637. A locking rod 3639 is slidably connected to the inner cavity of the alarm block 3638. One side of the locking rod 3639... A ball 36310 is movably connected to the end of the clamping rod 3639. A pressing block 36311 is fixedly installed on the outer surface of the clamping rod 3639. A second button 36312 is provided on the outer surface of the alarm block 3638. A second alarm 36313 is fixedly installed on the outer surface of the alarm block 3638. A fourth spring 36314 is provided at the end of the clamping rod 3639 away from the ball 36310. A flexible clamping block 3634 protrudes from the outside of the clamping arm 361. A floating block 3631 and the clamping arm 361 are slidably connected. A sliding rod 3635 and the clamping arm 361 are slidably connected. A third spring 3636 is located between the inner wall of the clamping arm 361 and the floating block 3631. The ball 36310 and the slot 3632 engage. The pressing block 36311 and the alarm block 3638 are slidably connected. The second button 36312 is electrically connected to the second alarm 36313, and pressing the second button 36312 controls the second alarm 36313 to sound an alarm. The fourth spring 36314 is located between the inner walls of the compression block 36311 and the second fixing block 3637. There is a gap between the compression block 36311 and the second button 36312. The clamping mechanism 364 includes a second connecting frame 3641, which is fixedly connected to the clamping arm 361. A spring rod 3642 is slidably connected to the inner cavity of the second connecting frame 3641. The bottom end of the spring rod 3642 is rotatably connected to a second adjusting rod 3643 via a thread. A fifth spring 3644 is sleeved on the outer surface of the spring rod 3642, and the spring rod 3642 is away from the second adjusting rod 3643. One end of the floating block 3631 is rotatably connected to a pressure wheel 3645. A connecting rod 3646 is fixedly installed on the outer surface of the floating block 3631. A pressure frame 3647 is fixedly installed on the end of the connecting rod 3646 away from the floating block 3631. The two ends of the pressure frame 3647 are inclined surfaces, and the inclined surfaces are in contact with the pressure wheel 3645. The pen 211 can easily cause the touch screen 4 to shake or shift. When the clamping arm 361 approaches the touch screen 4, the flexible clamping block 3634 first contacts the side of the touch screen 4. As the clamping arm 361 continues to move, the side of the clamping arm 361 eventually maintains contact with the side of the touch screen 4. At this time, the flexible clamping block 3634 compresses the second spring 3633, causing the second spring 3633 to be housed in the inner cavity of the floating block 3631.This keeps the side of the flexible clamping block 3634 flush with the outer side of the clamping arm 361. When the outer side of the touch screen 4 is not clamped, the flexible clamping block 3634 provides flexible restraint for the touch screen 4. When the pen 211 slides, it causes the touch screen 4 to shake or shift. The displacement of the touch screen 4 causes the floating block 3631 to slide in the inner cavity of the clamping arm 361, thereby causing the slide rod 3635 to slide in the inner cavity of the clamping arm 361 and compress the third spring 3636. At the same time, the sliding of the floating block 3631 causes the slot 3632 to disengage from the ball 36310, thus compressing the ball 36310. This causes the lever 3639 to slide in the inner cavity of the alarm block 3638. The movement of the lever 3639 causes the pressing block 36311 to slide in the inner cavity of the alarm block 3638, causing the pressing block 36311 to compress the second button 36312, thereby... The second alarm 36313 sounds an alarm, facilitating rapid maintenance by staff, improving the accuracy of test data, and enabling a true assessment of product performance. It also prevents uneven force on the touchscreen 4 caused by unstable clamping, thus preventing impact on touch sensitivity detection accuracy and preventing excessive local stress from damaging the screen, thereby improving test yield. When the floating block 3631 moves, it drives the connecting rod 3646 to move. The movement of the connecting rod 3646 drives the clamping frame 3647 to move. At this time, the inclined surface of the clamping frame 3647 presses against the clamping wheel 3645 on one side of the second connecting frame 3641, causing the elastic rod 3642 to slide inside the second connecting frame 3641 and press against the fifth spring 3644. This changes the second adjusting rod 3643 from contact to pressure on the outer surface of the touchscreen 4, preventing the touchscreen 4 from shaking or shifting and improving its stability.

[0046] In summary, the touchscreen 4 is clamped and fixed in the clamping assembly 3. The touchscreen 4 is tested by multi-point drawing on it using the testing assembly 2, simulating everyday multi-point dragging gestures. When testing touchscreens 4 of different thicknesses, the height of the limiting plate 212 and the drawing pen 211 is adjusted by the adjusting mechanism 29. The limiting plate 212 limits the drawing pen 211, ensuring equal contact force between the multiple drawing pens 211 and the touchscreen 4. The first motor 22 drives the turntable 23 to rotate within the test frame 21. The rotation of the turntable 23 causes the first drive rod 24 to slide within the slide groove 210. The sliding of the first drive rod 24 causes the moving plate 26 to... The test frame 21 reciprocates, causing the moving plate 26 to move the first connecting frame 27. The movement of the first connecting frame 27 causes the drawing pen 211 to draw lines on the touch screen 4, thereby visually detecting the smoothness of the multi-touch trajectory and the stability of the touch point recognition. The connecting plate 213 is used to detect whether the drawing pen 211 is tilted, so as to avoid damage to the touch screen 4 caused by the tilting of the drawing pen 211. The operation of the second motor 32 drives the second threaded rod to rotate, causing the clamping plate 33 to move on the support plate 31 and clamp and fix the touch screen 4. The clamping mechanism 35 drives the anti-slip mechanism 36 to move on the clamping plate 33 and clamp both sides of the touch screen 4, thereby keeping the touch screen 4 stable during the test.

[0047] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0048] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A multi-point testing device for a touch screen, comprising a testing machine (1), wherein the testing machine (1) includes a main body, an operation panel, and control buttons, characterized in that, The upper surface of the test machine (1) is provided with a test component (2), and the upper surface of the test machine (1) is provided with a clamping component (3). The outer surface of the clamping component (3) clamps a touch screen (4). The test assembly (2) includes a test frame (21). A first motor (22) is provided on the inner wall of the test frame (21). A turntable (23) is rotatably connected to the inner cavity of the test frame (21). A first drive rod (24) is slidably connected to the outer surface of the turntable (23). A plug rod (25) is threadedly connected to the inner cavity of the first drive rod (24). A moving plate (26) is slidably connected to the inner cavity of the test frame (21). A first connecting frame (27) is fixedly installed on the outer surface of the moving plate (26). A horizontal detection mechanism (28) is provided at the top of the first connecting frame (27). An adjustment mechanism (29) is provided at the bottom of the first connecting frame (27). A sliding groove (210) is opened in the middle part of the moving plate (26). A marking pen (211) and a limiting plate (212) are respectively provided at the bottom of the adjustment mechanism (29). A connecting plate (213) is fixedly installed on the bottom wall of the top of the test frame (21).

2. The multi-point testing device for a touchscreen as described in claim 1, characterized in that, The test frame (21) and the upper surface of the test machine (1) are fixedly connected. The output end of the first motor (22) is sleeved with the turntable (23). The outer surface of the turntable (23) is provided with a groove. The groove is evenly distributed on the turntable (23). The insertion rod (25) passes through the first drive rod (24) and engages with the groove. The first drive rod (24) and the slide groove (210) are slidably connected. There are six adjustment mechanisms (29). Five of them are fixedly connected with the marking pen (211), and the other is fixedly connected with the limiting plate (212). The marking pen (211) and the limiting plate (212) are slidably connected. The marking pen (211) is electrically connected to the operation panel.

3. The multi-point testing device for a touchscreen as described in claim 1, characterized in that, The horizontal detection mechanism (28) includes a connecting seat (281). A first button (282) is provided on the outer surface of the connecting seat (281). A first alarm (283) is fixedly installed on the outer surface of the connecting seat (281). The first button (282) and the first alarm (283) are electrically connected, and pressing the first button (282) controls the first alarm (283) to sound an alarm. A slide (284) is slidably connected to the inner cavity of the connecting seat (281). A first spring (285) is sleeved on the outer surface of the slide (284). A pressure wheel (286) is rotatably connected to the inner cavity of the slide (284). A balance block (287) is rotatably connected to the inner cavity of the connecting seat (281). The first spring (285) is located on the inner wall of the connecting seat (281) and the slide. Between the seats (284), the middle part of the pressure wheel (286) and the balance block (287) are closely fitted. The balance block (287) is symmetrically distributed about the pressure wheel (286), and the rotation of the balance block (287) squeezes the pressure wheel (286). A balance plate (288) is fixedly installed on the outer surface of the balance block (287). Rolling rods (289) are rotatably connected to both ends of the balance plate (288). The rolling rods (289) are closely fitted with the lower surface of the connecting plate (213). The connecting seat (281) and the first connecting frame (27) are fixedly connected. A pressing rod (2810) is fixedly installed on the outer surface of the balance block (287). There are two first buttons (282), and the pressing rod (2810) is located between the two first buttons (282).

4. The multi-point testing device for a touchscreen as described in claim 1, characterized in that, The adjustment mechanism (29) includes a first fixed block (291), a first threaded rod (292) is rotatably connected to the inner cavity of the first fixed block (291), a first slider (293) is slidably connected to the lower surface of the first fixed block (291), a second drive rod (294) is fixedly installed on the outer surface of the first slider (293), a storage rod (295) is fixedly installed on the lower surface of the first fixed block (291), a first adjustment rod (296) is slidably connected to the inner cavity of the storage rod (295), and the bottom end of the first adjustment rod (296) is... A lifting plate (297) is fixedly installed. A drive groove (298) is opened on the outer surface of the lifting plate (297). The first slider (293) and the first threaded rod (292) are connected by threads. The second drive rod (294) and the drive groove (298) are slidably connected. The upper surface of the first fixed block (291) and the lower surface of the first connecting frame (27) are fixedly connected. The limiting plate (212) and the lower surface of one of the lifting plates (297) are fixedly connected. The lower surfaces of the remaining lifting plates (297) are fixedly connected to the marking pen (211).

5. The multi-point testing device for a touchscreen as described in claim 1, characterized in that, The clamping assembly (3) includes a support plate (31), a second motor (32) is provided on the outer surface of the support plate (31), a second threaded rod is rotatably connected to the inner cavity of the support plate (31), the output end of the second motor (32) is sleeved with the second threaded rod, a clamping plate (33) is slidably connected to both ends of the support plate (31), the clamping plate (33) is threadedly connected to the second threaded rod, and the thread directions of the second threaded rod are opposite, a limit rod (34) is fixedly installed in the inner cavity of both ends of the clamping plate (33), a clamping mechanism (35) is provided in the middle part of the outer surface of the clamping plate (33), and an anti-slip mechanism (36) is provided at both ends of the clamping plate (33).

6. The multi-point testing device for a touchscreen as described in claim 5, characterized in that, The clamping mechanism (35) includes an adjusting frame (351), a third motor (352) is provided on the outer surface of the adjusting frame (351), a third threaded rod is rotatably connected to the inner cavity of the adjusting frame (351), the output end of the third motor (352) is sleeved with the third threaded rod, the two ends of the adjusting frame (351) are slidably connected with adjusting blocks (353), the adjusting blocks (353) and the third threaded rod are threadedly connected, and the thread directions at both ends of the third threaded rod are opposite, a fixing rod (354) is fixedly installed on the outer surface of the adjusting block (353), a connecting block (355) is fixedly installed at the end of the fixing rod (354) away from the adjusting block (353), and the middle part of the adjusting frame (351) and the clamping plate (33) are fixedly connected.

7. A multi-point testing device for a touchscreen as described in claim 6, characterized in that, The anti-slip mechanism (36) includes a clamping arm (361), which is fixedly connected to a connecting block (355). The clamping arm (361) is slidably connected to a limiting rod (34). A second slider (362) is fixedly installed on the outer surface of the clamping arm (361). The second slider (362) is slidably connected to the limiting rod (34). A flexible limiting mechanism (363) is provided in the inner cavity of the clamping arm (361). A pressing mechanism (364) is provided on the outer surface of the clamping arm (361).

8. The multi-point testing device for a touch screen as described in claim 7, characterized in that, The flexible limiting mechanism (363) includes a floating block (3631), with a slot (3632) on the outer surface of the floating block (3631). A second spring (3633) is provided in the inner cavity of the floating block (3631), and a flexible clamping block (3634) is slidably connected to the inner cavity of the floating block (3631). The second spring (3633) is located between the inner walls of the floating block (3631) and the flexible clamping block (3634). A slide rod (3635) is fixedly installed on the outer surface of the floating block (3631), and a third spring (3636) is sleeved on the outer surface of the slide rod (3635). A second fixed arm (3636) is fixedly installed on the outer surface of the clamping arm (361). The second fixed block (3637) has an alarm block (3638) fixedly installed on its outer surface. The inner cavity of the alarm block (3638) is slidably connected to a locking rod (3639). One end of the locking rod (3639) is movably connected to a locking ball (36310). The outer surface of the locking rod (3639) is fixedly installed with a pressing block (36311). The outer surface of the alarm block (3638) is provided with a second button (36312). The outer surface of the alarm block (3638) is fixedly installed with a second alarm (36313). The end of the locking rod (3639) away from the locking ball (36310) is provided with a fourth spring (36314).

9. A multi-point testing device for a touchscreen as described in claim 8, characterized in that, The flexible clamping block (3634) protrudes from the outside of the clamping arm (361). The floating block (3631) and the clamping arm (361) are slidably connected. The slide rod (3635) and the clamping arm (361) are slidably connected. The third spring (3636) is located between the inner wall of the clamping arm (361) and the floating block (3631). The locking ball (36310) and the locking groove (3632) are engaged. The squeezing block (36311) and the alarm block (3638) are slidably connected. The second button (36312) and the second alarm (36313) are electrically connected, and pressing the second button (36312) controls the second alarm (36313) to sound an alarm. The fourth spring (36314) is located between the inner walls of the squeezing block (36311) and the second fixing block (3637). There is a gap between the squeezing block (36311) and the second button (36312).

10. A multi-point testing device for a touchscreen as described in claim 9, characterized in that, The clamping mechanism (364) includes a second connecting frame (3641), which is fixedly connected to the clamping arm (361). A spring rod (3642) is slidably connected to the inner cavity of the second connecting frame (3641). A second adjusting rod (3643) is rotatably connected to the bottom end of the spring rod (3642) via a thread. A fifth spring (3644) is sleeved on the outer surface of the spring rod (3642). A clamping wheel (3645) is rotatably connected to the end of the spring rod (3642) away from the second adjusting rod (3643). A connecting rod (3646) is fixedly installed on the outer surface of the floating block (3631). A clamping frame (3647) is fixedly installed at the end of the connecting rod (3646) away from the floating block (3631). Both ends of the clamping frame (3647) are inclined surfaces, and the inclined surfaces are in contact with the clamping wheel (3645).

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