A touch screen anti-friction performance detection device

Abstract

The utility model provides a kind of touch screen anti-friction performance detection device, including the detection platform for fixedly installed touch screen to be detected, and equidistantly nested spring rod installed below connecting slide bar, the equidistantly fixed mounting head for installing spring rod is installed in the below of connecting slide bar, the lower side of spring rod is fixedly installed with adapter. Adapter and friction head are connected by magnetic attraction nesting, different material friction head can be quickly replaced without tools, spring rod is built-in spring with calibrated elastic coefficient, can ensure that different friction head is always attached to touch screen surface, mounting head can replace spring rod with different elastic coefficient, reciprocating movement is matched with connecting slide bar, multiple groups of friction head can be tested simultaneously in different areas of single touch screen, this structure does not need to frequently replace touch screen, greatly reduces the amount of detection consumables, reduces detection cost, while ensuring that multiple tests are carried out under the same pressure, speed parameters, to further improve the accuracy of different friction conditions comparison detection.

Description

Technical Field

[0001] This utility model relates to the field of touch screen testing equipment, specifically a touch screen anti-friction performance testing device. Background Technology

[0002] In the field of touch screen manufacturing and quality control, anti-friction performance is a key indicator for measuring product lifespan and user experience. Touch screens are frequently touched by fingers in daily use and may also be accidentally scratched by hard objects such as keys and pen tips. During transportation, surface wear may also occur due to packaging friction. Therefore, before leaving the factory, it is necessary to verify its anti-friction ability through professional testing equipment. The core function of the touch screen anti-friction performance testing device is to simulate the friction scenarios of the touch screen in actual use, quantify its ability to resist wear and scratches, and ultimately determine whether the product meets quality standards or lifespan requirements.

[0003] Because different objects exert different frictional forces on the touchscreen surface, existing touchscreen friction resistance testing usually employs variable experiments and evaluates it through planar friction tests. However, different objects exert varying frictional forces on the touchscreen surface at different angles, resulting in poor performance when conducting planar controlled variable friction experiments simply by changing the friction object. Furthermore, existing testing methods require a large number of touchscreens to perform friction tests by changing different friction objects, leading to high testing costs and making it inconvenient to simulate various friction conditions under the same testing parameters.

[0004] Therefore, we provide a device for testing the anti-friction performance of touch screens. Utility Model Content

[0005] The main objective of this invention is to provide a touch screen anti-friction performance testing device, which can effectively solve the problems mentioned in the background art. When testing the friction of the touch screen surface by changing different friction materials, the existing testing methods require a large number of touch screens, have high testing costs, and are not convenient for simulating multiple friction conditions under the same testing parameters.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A touch screen anti-friction performance testing device includes a testing platform for fixing the touch screen to be tested, and spring rods equidistantly nested below a connecting slide rod. Mounting heads for mounting the spring rods are fixedly installed equidistantly below the connecting slide rods. Connecting heads are fixedly installed below each spring rod, and replaceable friction heads are nested on the connecting heads. The testing platform is symmetrically equipped with lifting mechanisms at both ends. The lifting mechanism includes a fixed sleeve rod and a telescopic rod that is movably fitted inside the fixed sleeve rod. A clamping block is movably fitted above the telescopic rod, and the testing platform is clamped and installed on the telescopic rod by the clamping block. A fixing bolt is provided through one side of the clamping block and is movably fitted inside the telescopic rod. The clamping block is movably fitted inside the telescopic rod by the fixing bolt. A rotating rod is movably fitted inside the lower part of the fixed sleeve rod. A locking block is fixedly installed on one side of the rotating rod, and a slot for nesting the locking block is fixedly connected to the lower part of one side of the fixed sleeve rod. A lifting rotating rod is movably fitted vertically in the middle of the fixed sleeve rod and is movably fitted inside the telescopic rod.

[0007] In the above scheme, preferably, a fixed base is fixedly installed below the lifting mechanism, and support rods for support are vertically fixedly installed on the upper sides of both sides of the fixed base. Fixed crossbars are fixedly installed on each support rod, and the connecting slide rod is located between the fixed crossbars and is movably connected.

[0008] In the above scheme, preferably, a fixing rod for improving the stability between the two is fixedly installed on one side of the fixing crossbar, and a servo motor is fixedly installed in the middle of one side of the fixing rod.

[0009] In the above scheme, preferably, the fixed crossbars are all fitted with threaded transmission slide rods, and the threads on the two fixed crossbars are arranged in opposite directions. The two ends of the connecting slide rod are fixedly connected with nested sliders, and the connecting slide rod is movably installed on the transmission slide rod through the nested sliders.

[0010] In the above scheme, preferably, a transmission rod is movably installed inside the fixed rod, one end of the transmission slide rod is connected to the transmission rod, and the transmission rod is connected to the drive shaft of the servo motor.

[0011] In the above scheme, preferably, the detection platform is provided with fixing holes at equal intervals, and the fixing holes are provided with limiting bolts corresponding to the mounting screw holes provided on the touch screen.

[0012] In the above scheme, preferably, the rotating rod and the lifting rotating rod, the transmission slide rod and the transmission rod, and the transmission rod and the drive spindle of the servo motor are all connected by bevel gear transmission.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This touchscreen anti-friction performance testing device, through the installation of a mounting head, spring rod, and connecting head, realizes multi-friction scenario simulation and multi-condition testing of a single touchscreen. The connecting head and the friction head are magnetically nested, allowing for quick replacement of friction heads of different materials without tools. The spring rod has a built-in spring with a calibrated elastic coefficient, ensuring that different friction heads always adhere to the touchscreen surface. The mounting head can be replaced with spring rods of different elastic coefficients. With the reciprocating motion of the connecting slide rod, multiple sets of friction heads can be tested simultaneously in different areas of a single touchscreen. This structure eliminates the need for frequent touchscreen replacements, significantly reducing the amount of testing consumables and lowering testing costs. At the same time, it ensures that multiple tests are conducted under the same pressure and speed parameters, thereby improving the accuracy of comparative testing under different friction conditions.

[0014] This touchscreen anti-friction performance testing device, through the installation of a lifting mechanism, transmission rod, and transmission slide rod, realizes the functions of touchscreen tilt angle adjustment and reciprocating transmission of friction components. In the lifting mechanism, the rotating rod and the lifting rotating rod are driven by bevel gears. Rotating the rotating rod can drive the telescopic rod to rise and fall along the fixed sleeve rod, adjusting the height of the testing platform and the height difference between the two lifting mechanisms. Combined with the clamping limit of the clamping block and the fixing bolt, the tilt angle of the testing platform can be stably adjusted to adapt to different friction scenarios. In the drive component, the servo motor drives the transmission rod to rotate through the bevel gear. The transmission rod synchronously drives the transmission slide rods with positive and negative threads on both sides, causing the connecting slide rods to reciprocate along the fixed crossbar, thereby ensuring the stability of the transmission and the continuity of anti-friction testing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a partial structural diagram of the testing platform in this utility model.

[0018] Figure 3 This is a schematic diagram of the connection structure between the spring rod and the connecting slide rod in this utility model.

[0019] Figure 4 This is a schematic diagram of the connection structure between the connecting slide rod and the transmission slide rod in this utility model.

[0020] Figure 5 This is a schematic diagram of the connection structure between the transmission rod and the transmission slide rod in this utility model.

[0021] Figure 6 This is a cross-sectional structural diagram of the lifting mechanism in this utility model.

[0022] Figure 7 This is a cross-sectional structural diagram of the spring rod in this utility model.

[0023] Figure 1 - Figure 7 In the middle: 1. Fixed base; 2. Support rod; 3. Lifting mechanism; 301. Fixed sleeve rod; 302. Telescopic rod; 303. Rotating rod; 304. Locking block; 305. Lifting rotating rod; 306. Clamping block; 307. Fixing bolt; 4. Detection platform; 401. Fixing hole; 402. Limiting bolt; 5. Fixed crossbar; 501. Transmission slide rod; 6. Connecting slide rod; 601. Mounting head; 602. Nested slider; 7. Fixed rod; 701. Transmission rod; 8. Servo motor; 9. Spring rod; 901. Connecting head; 902. Friction head; 10. Touch screen. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 - Figure 7As shown, in this embodiment, a touch screen anti-friction performance testing device includes a testing platform 4 for fixing and mounting the touch screen 10 to be tested, and spring rods 9 equidistantly nested below the connecting slide rod 6. The testing platform 4 has equidistantly penetrating fixing holes 401, and limiting bolts 402 corresponding to the mounting screw holes on the touch screen 10 pass through the fixing holes 401. Mounting heads 601 for mounting the spring rods 9 are equidistantly fixedly mounted below the connecting slide rod 6. Connecting heads 901 are fixedly mounted below each spring rod 9, and replaceable friction heads 902 are nested on the connecting heads 901. Lifting mechanisms 3 are symmetrically mounted at both ends of the testing platform 4. The lifting mechanism 3 includes a fixed sleeve rod 301 and an extension rod movably fitted within the fixed sleeve rod 301. The telescopic rod 302 has a clamping block 306 movably installed on its upper limit, and the detection platform 4 is clamped and installed on the telescopic rod 302 by the clamping block 306. A fixing bolt 307 is provided through one side of the clamping block 306 and is movably installed inside the telescopic rod 302. The clamping block 306 is movably installed inside the telescopic rod 302 by the fixing bolt 307. A rotating rod 303 is movably installed inside the lower part of the fixed sleeve rod 301. A locking block 304 is fixedly installed on one side of the rotating rod 303. A slot for nesting the locking block 304 is fixedly connected to the lower part of one side of the fixed sleeve rod 301. A lifting rotating rod 305 is movably installed vertically in the middle of the fixed sleeve rod 301 and is movably installed inside the telescopic rod 302. Specifically, with this setup, when testing the anti-friction performance of the touch screen 10, the touch screen 10 to be tested is first placed on the test platform 4. The limiting bolt 402 passes through the fixing hole 401 and is threadedly connected to the mounting screw hole of the touch screen 10. By cooperating with the fixing hole 401, the touch screen 10 can be fixed on the test platform 4 to prevent the touch screen 10 from undergoing horizontal displacement during the friction test. The outer wall of the connector 901 is equipped with a magnetic structure, and the top of the friction head 902 is equipped with a corresponding magnet. The two are connected by magnetic nesting, allowing the friction head 902 to be disassembled and installed without the need for additional tools. When different friction scenarios need to be simulated, the friction head 902 can be directly removed and a new friction head 902 can be inserted. The spring rod 9 has a spring with the same elastic coefficient inside. The spring rod 9 keeps different friction heads 902 in contact with the surface of the touch screen 10. The mounting head 601 is fixed at equal intervals along the length of the connecting slide rod 6. The spring rod 9 with different elastic coefficients can be replaced through the mounting head 601. When the connecting slide rod 6 reciprocates along the fixed crossbar 5, multiple sets of friction heads 902 can be tested simultaneously in different areas of the same touch screen 10. The comparison test of multiple friction conditions can be completed without replacing the touch screen 10, thereby reducing the number of touch screens 10 required for testing. At the same time, it ensures that all friction tests are carried out under the same parameters such as pressure and movement speed, so as to improve the accuracy of the comparison test. Since the rotating rod 303 is equipped with two bevel gears, when the height of the test platform 4 needs to be adjusted, the rotating rod 303 is rotated, and one of the bevel gears meshes with the bevel gear on the lifting rotating rod 305, thereby driving the lifting rotating rod 305 to rotate synchronously. The lifting rotating rod 305 is driven to move up and down along the fixed sleeve rod 301 through a threaded transmission connection with the telescopic rod 302. After the adjustment is completed, the locking block 304 on the rotating rod 303 is pressed into the locking groove on one side of the fixed sleeve rod 301. The locking groove limits the locking block 304 and prevents the rotating rod 303 from rotating. At this time, another bevel gear on the other rotating rod 303 meshes with the bevel gear on the lifting rotating rod 305, thereby locking the position of the lifting rotating rod 305 and the telescopic rod 302 to avoid the height of the test platform 4 shifting during the test. By adjusting the height difference of the lifting mechanisms 3 on both sides of the test platform 4, the tilt angle of the test platform 4 can be adjusted to adapt to the friction test requirements of the touch screen 10 at different angles. When adjusting the tilt angle of the test platform 4, the position of the clamping block 306 on the telescopic rod 302 is adjusted by fixing bolt 307, thereby adjusting the clamping force of the clamping block 306 on the telescopic rod 302 to ensure that the test platform 4 remains stable in the tilted state.

[0026] like Figure 1 - Figure 6As shown, in this embodiment, a fixed base 1 is fixedly installed below the lifting mechanism 3. Support rods 2 for support are vertically fixedly installed on the upper sides of both sides of the fixed base 1. Fixed crossbars 5 are fixedly installed on each support rod 2, and connecting slide rods 6 are located between the fixed crossbars 5 for movable connection. A fixed rod 7 for improving the stability between the two is fixedly installed on one side of the fixed crossbars 5, and a servo motor 8 is fixedly installed in the middle of one side of the fixed rod 7. The drive shafts of the rotating rod 303 and the lifting rotating rod 305, the transmission slide rod 501 and the transmission rod 701, and the transmission rod 701 and the servo motor 8 are all connected by bevel gear transmission. Specifically, with this setup, the support rod 2 and lifting mechanism 3 are installed and used via the fixed base 1, and the fixed crossbar 5 is installed and used via the support rod 2. Since the nested slider 602 at both ends of the connecting slide rod 6 has an internal thread that matches the external thread of the transmission slide rod 501, the nested slider 602 is sleeved on the transmission slide rod 501. Both the fixed crossbar 5 and the fixed rod 7 have bearing seats inside. The transmission slide rod 501 and the transmission rod 701 are movably connected to the fixed crossbar 5 and the fixed rod 7 through the bearing seats. The rotating rod 303 and the lifting rotating rod 305, the transmission slide rod 501 and the transmission rod 701, and the transmission rod 701 and the drive spindle of the servo motor 8 are all connected by bevel gear transmission. This allows the drive spindle of the servo motor 8 to drive the transmission rod 701 to rotate, and the transmission rod 701 drives the transmission slide rod 501 to rotate synchronously through the bevel gear transmission.

[0027] like Figure 1 - Figure 6 As shown, in this embodiment, the fixed crossbar 5 is fitted with a threaded transmission slide bar 501, and the threads on the two fixed crossbars 5 are arranged in opposite directions. The two ends of the connecting slide bar 6 are fixedly connected with nested sliders 602, and the connecting slide bar 6 is movably installed on the transmission slide bar 501 through the nested sliders 602. The fixed bar 7 is fitted with a transmission rod 701, one end of the transmission slide bar 501 is connected to the transmission rod 701, and the transmission rod 701 is connected to the drive spindle of the servo motor 8. Specifically, with this setup, when the servo motor 8 starts, the drive spindle drives the transmission rod 701 to rotate via bevel gears. The transmission rod 701 then transmits power to the transmission slide rod 501 via bevel gears, causing the transmission slide rod 501 to rotate accordingly. Since the threads of the two transmission slide rods 501 rotate in opposite directions, the connecting slide rod 6 moves synchronously within the fixed crossbar 5. The servo motor 8 (which is a motor with an encoder that can provide real-time feedback on the motor speed and number of rotations and transmit the data to an external controller, model 130ST-M06025; this servo motor 8 is existing technology and will not be described in detail here) adjusts the input current and frequency through the controller to control the motor speed and direction, thereby enabling the connecting slide rod 6 to reciprocate linearly along the fixed crossbar 5 via the drive spindle of the servo motor 8. This allows the friction head 902 to perform a reciprocating friction test on the touch screen 10.

[0028] Working principle: When the servo motor 8 starts, the drive spindle drives the transmission rod 701 to rotate through the bevel gear. The transmission rod 701 then transmits power to the transmission slide rod 501 through the bevel gear, causing it to rotate accordingly. Since the threads of the two transmission slide rods 501 are opposite, the connecting slide rod 6 moves synchronously within the fixed crossbar 5. The servo motor 8 adjusts the input current and frequency through the controller, thereby controlling the motor speed and direction. This enables the servo motor 8 to drive the spindle, which in turn drives the connecting slide rod 6 to perform reciprocating linear motion along the fixed crossbar 5. This allows the friction head 902 to perform reciprocating friction testing on the touch screen 10. When testing the anti-friction performance of the touchscreen 10, the touchscreen 10 to be tested is first placed on the test platform 4. The limiting bolt 402 passes through the fixing hole 401 and is threadedly connected to the mounting screw hole of the touchscreen 10. Through the cooperation of the limiting bolt 402 and the fixing hole 401, the touchscreen 10 can be fixed on the test platform 4 to prevent the touchscreen 10 from shifting horizontally during the friction test. The outer wall of the connector 901 is provided with a magnetic structure, and the top of the friction head 902 is provided with a corresponding magnet. The two are connected by magnetic nesting. The friction head 902 can be disassembled and installed without the need for additional tools. When it is necessary to simulate different friction scenarios, the friction head 902 can be directly removed and a new friction head 902 can be inserted. The spring rod 9 has a spring with the same elastic coefficient inside. Through the action of the spring rod 9 and the spring, the different friction heads 902 are always kept in contact with the surface of the touch screen 10. The mounting head 601 is fixed at equal intervals along the length direction below the connecting slide rod 6. The spring rod 9 with different elastic coefficients can be replaced through the mounting head 601. When the connecting slide rod 6 reciprocates along the fixed crossbar 5, multiple sets of friction heads 902 can simultaneously perform friction tests in different areas of the same touch screen 10. The comparison test of multiple friction conditions can be completed without replacing the touch screen 10, thereby reducing the number of touch screens 10 required for testing. At the same time, it ensures that all friction tests are carried out under the same parameters such as pressure and movement speed, so as to improve the accuracy of comparison test. When the height of the testing platform 4 needs to be adjusted, rotate the rotating rod 303. One of the bevel gears meshes with the bevel gear on the lifting rotating rod 305, thereby driving the lifting rotating rod 305 to rotate synchronously. The lifting rotating rod 305 is connected to the telescopic rod 302 by a threaded transmission, causing it to move up and down along the fixed sleeve rod 301. After adjustment, press the locking block 304 on the rotating rod 303 into the locking groove on one side of the fixed sleeve rod 301. The locking groove limits the locking block 304, preventing the rotating rod 303 from rotating. At this time, the bevel gear on the other rotating rod 303 meshes with the lifting rotating rod 305. The bevel gears mesh to lock the positions of the lifting rod 305 and the telescopic rod 302, preventing the height of the test platform 4 from shifting during the test. By adjusting the height difference between the lifting mechanisms 3 on both sides of the test platform 4, the tilt angle of the test platform 4 can be adjusted to meet the friction test requirements of the touch screen 10 at different angles. When adjusting the tilt angle of the test platform 4, the position of the clamping block 306 on the telescopic rod 302 is adjusted by fixing bolt 307, thereby adjusting the clamping force of the clamping block 306 on the telescopic rod 302 to ensure that the test platform 4 remains stable in the tilted state.

[0029] The preferred embodiments of the present invention disclosed above are merely illustrative of the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific implementations. The present invention is not limited to the above embodiments; the embodiments and descriptions in the specification are merely outlining the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for testing the anti-friction performance of a touch screen, comprising a testing platform (4) for fixing and mounting a touch screen (10) to be tested, and spring rods (9) equidistantly nested below a connecting slide rod (6), characterized in that: The connecting slide bar (6) is fixedly installed with mounting heads (601) for mounting spring rods (9) at equal intervals below it. The spring rods (9) are all fixedly installed with connecting heads (901) below them. Replaceable friction heads (902) are nested on the connecting heads (901). The testing platform (4) is symmetrically equipped with lifting mechanisms (3) at both ends. The lifting mechanism (3) includes a fixed sleeve rod (301) and a telescopic rod (302) that is movably fitted inside the fixed sleeve rod (301). A clamping block (306) is movably fitted above the telescopic rod (302), and the testing platform (4) is clamped and installed on the telescopic rod (302) by the clamping block (306). A fixing bolt (307) that is movably fitted inside the telescopic rod (302) is provided through one side of the clamping block (306), and the clamping block (306) is movably fitted inside the telescopic rod (302). 306) The fixed sleeve rod (301) is located inside the telescopic rod (302) by fixing bolt (307). The rotating rod (303) is installed inside the lower part of the fixed sleeve rod (301). A locking block (304) is fixedly installed on one side of the rotating rod (303). A slot for nesting the limiting locking block (304) is fixedly connected to the lower part of one side of the fixed sleeve rod (301). A lifting rotating rod (305) is installed vertically in the middle of the fixed sleeve rod (301). The lifting rotating rod (305) is installed inside the telescopic rod (302).

2. The touchscreen anti-friction performance testing device according to claim 1, characterized in that, A fixed base (1) is fixedly installed below the lifting mechanism (3). Support rods (2) for support are vertically fixedly installed on the upper sides of the fixed base (1). Fixed crossbars (5) are fixedly installed on the support rods (2), and connecting slide rods (6) are interlocked and movably connected between the fixed crossbars (5).

3. The touchscreen anti-friction performance testing device according to claim 2, characterized in that, A fixing rod (7) for improving the stability between the two is fixedly installed on one side of the fixing crossbar (5), and a servo motor (8) is fixedly installed in the middle of one side of the fixing rod (7).

4. The touchscreen anti-friction performance testing device according to claim 3, characterized in that, The fixed crossbar (5) is fitted with a threaded transmission slide bar (501) inside, and the threads on the two fixed crossbars (5) are set in opposite directions respectively. The two ends of the connecting slide bar (6) are fixedly connected with nested sliders (602), and the connecting slide bar (6) is nested on the transmission slide bar (501) through the nested sliders (602).

5. The touchscreen anti-friction performance testing device according to claim 4, characterized in that, The fixed rod (7) is fitted with a transmission rod (701), one end of the transmission slide rod (501) is connected to the transmission rod (701), and the transmission rod (701) is connected to the drive shaft of the servo motor (8).

6. The touchscreen anti-friction performance testing device according to claim 1, characterized in that, The detection platform (4) is provided with fixed holes (401) at equal intervals, and a limiting bolt (402) corresponding to the mounting screw hole provided on the touch screen (10) passes through the fixed hole (401).

7. A touchscreen friction resistance testing device according to any one of claims 1-5, characterized in that, The rotating rod (303) and the lifting rotating rod (305), the transmission slide rod (501) and the transmission rod (701), and the transmission rod (701) and the drive shaft of the servo motor (8) are all connected by bevel gear transmission.

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