Touch screen friction durability test equipment

Abstract

The utility model discloses a touch screen friction durability test device, which belongs to the technical field of touch performance durability test of display panels and comprises a frame, a clamp component, a moving component, a friction rod component and a camera component. The camera assembly is arranged above the clamp assembly, so that automatic positioning of the product is realized through the camera assembly, automatic friction scribing of the friction rod assembly on the product under the driving of the moving assembly is realized, the operation of operators is reduced, the test efficiency and the test precision are improved, and the labor cost is reduced. The touch screen friction durability test equipment is simple in structure, high in test precision, high in automation degree, capable of adapting to various test requirements, capable of guaranteeing consistency of multiple test variables, wide in applicability and capable of meeting various use requirements of customers, and has good application prospects and popularization value.

Description

Technical Field

[0001] The utility model belongs to the technical field of touch performance durability testing of display panels, and in particular relates to a touch screen friction durability testing device. Background Art

[0002] As a human-computer interaction input method, touch screen technology has a more intuitive and convenient operating experience and is widely used in many fields such as industry, military, electronic games, multimedia teaching, etc. It simplifies the computer input method and realizes zero-distance operation.

[0003] With the widespread application of touch screen technology, its performance requirements are becoming increasingly higher. Among them, friction durability is an important indicator of touch screen quality. Before the product leaves the factory, it is necessary to use touch durability testing equipment to simulate the friction and wear that the product may experience during long-term use, so as to evaluate the durability and service life of the product and ensure product quality and user experience.

[0004] In existing touch durability testing equipment, the commonly used operation method is generally manual alignment. There is also a method of positioning through fixed positions, but this method cannot correspond to the positioning of products of various sizes, or can only be achieved by replacing the fixture. This method requires high equipment assembly accuracy, resulting in reduced equipment testing efficiency. Utility Model Content

[0005] In response to one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a touch screen friction durability testing device that can automatically position the product, is compatible with products of various sizes, and can perform friction durability testing on multiple products at the same time.

[0006] To achieve the above-mentioned purpose, the utility model provides a touch screen friction durability testing device, which includes a frame, a fixture assembly, a moving assembly, a friction rod assembly and a camera assembly;

[0007] The clamp assembly is fixed on the frame and is used to fix the product;

[0008] The moving assembly is fixed on the frame; the friction rod assembly is fixed on the moving assembly and is arranged above the clamp assembly, and can mark the product under the drive of the moving assembly;

[0009] The camera assembly is arranged above the fixture assembly to position the product.

[0010] As a further improvement of the present invention, the camera assembly includes a CCD camera and a coaxial light;

[0011] The CCD camera is connected to the outer cover and can move relative to the frame along the Z axis; the coaxial light is fixedly arranged on the CCD camera to provide light source for the CCD camera.

[0012] As a further improvement of the present invention, the fixture assembly includes a base and a plurality of fixtures movably connected to the base, and a clamping space is formed between the plurality of fixtures.

[0013] As a further improvement of the present invention, the fixture assembly further includes an X-guide rail, a Y-guide rail and a knob screw;

[0014] Two Y-direction guide rails are provided at intervals along the X direction, extending along the Y direction and fixed on the base;

[0015] Two X-guide rails are provided at intervals along the Y direction, extending along the X direction, and two ends of the X-guide rails are slidably connected to the two Y-guide rails, and the plurality of jigs are slidably connected to the two X-guide rails;

[0016] The knob screw is used to fix the X-guide rail and the fixture after movement;

[0017] The X-guide rail and the Y-guide rail are both provided with first scale lines.

[0018] As a further improvement of the present invention, the friction rod assembly includes a buffer cylinder, a friction rod and a buffer spring;

[0019] The buffer cylinder is connected to the moving assembly and is a cylindrical structure with one end open and extending along the Z direction; one end of the friction rod is inserted into the buffer cylinder, and the other end is provided with a conductive voltage head;

[0020] The buffer spring is arranged in the buffer tube, with one end thereof abutting against the inside of the buffer tube and the other end abutting against the end surface of the friction rod facing away from the conductive voltage head.

[0021] As a further improvement of the present invention, a sliding groove extending in the Z direction is provided on the side wall of the buffer cylinder, and a sliding pin is provided on the side wall of the friction rod away from the conductive voltage head. The pin is embedded in the sliding groove and can move along the extension direction of the sliding groove.

[0022] and / or,

[0023] A bushing is fixedly mounted on the friction rod, one end of the bushing abuts against the end surface of the buffer tube, and the other end is passed through the buffer tube and slidably abuts against the inner wall of the buffer tube;

[0024] and / or,

[0025] A pressure sensor is also included, and the pressure sensor is arranged between the friction rod assembly and the moving assembly.

[0026] As a further improvement of the present invention, the mobile assembly includes an X-axis mobile module, a Y-axis mobile module, a Z-axis mobile module and a gantry;

[0027] The X-axis moving module is arranged on the Y-direction side of the fixture assembly, and the gantry is connected to the X-axis moving module so as to drive the gantry to move along the X-axis direction through the X-axis moving module; linear guide rails extending along the X-axis are also provided on both sides of the Y-direction of the fixture assembly, and the two ends of the gantry are respectively slidably connected to the two linear guide rails;

[0028] The Y-axis moving module is fixedly arranged on the gantry;

[0029] The Z-axis moving module is connected to the Y-axis moving module to drive the Z-axis moving module to move along the Y direction through the Y-axis moving module; the friction rod assembly is connected to the Z-axis moving module to move up and down along the Z direction under the drive of the Z-axis moving module.

[0030] As a further improvement of the present invention, a plurality of clamp assemblies are sequentially arranged on the frame along the Y direction;

[0031] Correspondingly, a plurality of Z-axis moving modules are arranged on the Y-axis moving module at intervals along the Y direction, and the friction rod assembly is arranged on each Z-axis moving module.

[0032] As a further improvement of the present invention, the friction rod assembly is connected to the Z-axis moving module via a sliding assembly;

[0033] The sliding assembly includes a fixed block and a slider, the fixed block is connected to the Z-axis moving module, a groove extending along the Y direction is provided on the fixed block, and a second scale line is provided on the fixed block corresponding to the groove;

[0034] A protrusion is provided on the slider, and the protrusion is matched and embedded in the groove and can slide along the extension direction of the groove. The friction head assembly is fixedly connected to the protrusion to adjust the distance between two adjacent friction rod assemblies by moving along the groove.

[0035] As a further improvement of the present invention, it further includes a PG module; the PG module is arranged below the clamp assembly, and a plug interface is provided on the clamp assembly, and the product passes through the plug interface and is plugged into the PG module.

[0036] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0037] In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:

[0038] (1) The touch screen friction durability testing equipment of the present invention sets a camera component above the clamp component to realize automatic positioning of the product through the camera component, and realizes automatic friction marking of the product by the friction rod component driven by the moving component, thereby reducing the operation of the operator, improving the test efficiency and test accuracy, and reducing the labor cost.

[0039] (2) The touch screen friction durability testing equipment of the present invention is adapted to products of various models and sizes by arranging multiple movable jigs in the fixture assembly to clamp and fix the product through the jigs, and adjusting the clamping space by moving the position of the jigs, thereby improving the applicability of the equipment.

[0040] (3) The touch screen friction durability testing equipment of the present invention provides a buffer spring between the buffer cylinder of the friction rod assembly and the friction rod to buffer the pressure between the friction rod and the product during the downward pressing of the friction rod, thereby avoiding damage to the product due to excessive pressure during the downward pressing process and overcoming deformation of the product caused by the downward pressing process.

[0041] (4) The touch screen friction durability testing equipment of the present invention sets a sliding component between the friction rod component and the Z-axis moving module to adjust the distance between two adjacent friction rods through the sliding component according to the product position, thereby realizing friction durability testing of multiple products at the same time and improving the testing efficiency of the equipment.

[0042] (5) The touch screen friction durability testing equipment of the present invention has a simple structure, high test accuracy, high degree of automation, can adapt to various test requirements, ensure the consistency of multiple test variables, has wide applicability, meets the various usage requirements of customers, and has good application prospects and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 This is a schematic diagram of the overall structure of the touch screen friction durability testing device in an embodiment of the present utility model;

[0045] Figure 2 This is a schematic diagram of the overall structure of the clamp assembly in an embodiment of the present utility model;

[0046] Figure 3 This is a schematic diagram of the overall structure of the camera assembly in an embodiment of the present utility model;

[0047] Figure 4 This is a schematic diagram of the overall structure of the mobile assembly in the embodiment of the present utility model;

[0048] Figure 5 This is a schematic diagram of the overall structure of the friction rod assembly in the embodiment of the present utility model;

[0049] Figure 6 This is a schematic diagram of the appearance and structure of the touch screen friction durability testing device in an embodiment of the present utility model;

[0050] In all the drawings, the same reference numerals represent the same technical features, specifically: 1. clamp assembly; 101. base; 1011. plug interface; 102. fixture; 103. X-guide rail; 104. Y-guide rail; 105. knob screw; 106. first scale line; 2. camera assembly; 201. CCD camera; 202. coaxial light; 3. X-axis moving module; 4. Y-axis moving module; 5. Z-axis moving module; 6. friction rod assembly; 601. friction rod ; 602, buffer cylinder; 6021, sliding groove; 603, buffer spring; 604, sliding pin; 605, conductive voltage head; 6051, replaceable pressure head; 6052, conversion column; 606, pressure sensor; 607, bushing; 7, sliding assembly; 701, fixed block; 7011, groove; 702, slider; 7021, bump; 703, second scale line; 8, gantry; 9, PG module; 10, rack; 11, outer cover; 12, display. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0055] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] Example:

[0057] See also Figures 1 to 6The touch screen friction durability testing equipment in the preferred embodiment of the present invention includes a frame 10, a fixture assembly 1, a moving assembly, a friction rod assembly 6 and a camera assembly 2, wherein the friction rod assembly 6 is arranged on the moving assembly, so that after the product to be tested is clamped and fixed by the fixture assembly 1, the product to be tested is automatically positioned by the camera assembly 2, and the friction rod assembly 6 is driven by the moving assembly to contact and draw lines on the product to be tested, thereby realizing automatic touch durability testing of the product.

[0058] Specifically, if Figure 1 As shown in the figure, the fixture assembly 1 in the preferred embodiment is fixed on the frame 10, and includes a base 101 and a plurality of fixtures 102, wherein the base 101 is fixedly connected to the frame 10, and the plurality of fixtures 102 are connected to the base 101 to form a clamping space between the plurality of fixtures 102 to clamp and fix the product to be tested.

[0059] Preferably, the plurality of jigs 102 are movably connected to the base 101 so as to change the formed clamping space by moving the relative positions of the plurality of jigs 102 to be compatible with the clamping and fixing of products of various sizes.

[0060] like Figure 2 As shown in , the fixture assembly 1 further includes an X-guide rail 103, a Y-guide rail 104, and a knob screw 105, wherein two Y-guide rails 104 are provided at intervals along the X direction, extend along the Y direction, and are fixed to the base 101; two X-guide rails 103 are provided at intervals along the Y direction, extend along the X direction, and have their ends respectively slidably connected to the two Y-guide rails 104, so that the X-guide rails 103 can move along the extension direction of the Y-guide rail 104, thereby adjusting the distance between the two X-guide rails 103;

[0061] Accordingly, multiple jigs 102 are slidably connected to the two X-guide rails 103 and can move along the extension direction of the X-guide rails 103. The size of the clamping space can be changed by moving the positions of the two X-guide rails 103 and the multiple jigs 102. At the same time, the adjusted X-guide rails 103 are fixed to the Y-guide rails 104 using knob screws 105, and the jigs 102 are also fixed to the X-guide rails 103.

[0062] Preferably, in actual setting, multiple groups of clamp assemblies 1 can be arranged in sequence along the Y direction, so that multiple products can be clamped simultaneously by one machine.

[0063] like Figure 2 As shown in the figure, two groups of fixture assemblies 1 arranged along the Y direction are provided. Four fixtures 102 are provided in each group of fixture assemblies 1. Two fixtures 102 are slidably connected on each X-direction guide rail 103. The four fixtures 102 are respectively provided at the four corners to clamp and fix the product.

[0064] It is understandable that, in actual setting, when multiple sets of clamp assemblies 1 are set along the Y direction, multiple Y-direction guide rails 104 can be set continuously along the Y direction, or one Y-direction guide rail 104 can be continuously extended along the Y direction.

[0065] Preferably, a first scale line 106 is set corresponding to the movement of the X guide rail 103 and the fixture 102. The first scale line 106 can be directly set on the X guide rail 103 and the Y guide rail 104, or on the base 101, so as to display the clamping position of the product through the first scale line 106 and perform rough positioning of the product.

[0066] Preferably, if Figure 6 As shown in FIG, the corresponding frame 10 is further provided with an outer cover 11 to isolate the working space from the external space through the outer cover 11.

[0067] Furthermore, the camera assembly 2 in the preferred embodiment is fixed on the outer cover 11 and is disposed above the clamp assembly 1 to locate the position of the product clamped on the clamp assembly 1 .

[0068] Preferably, if Figure 3 As shown in FIG, camera assembly 2 includes a CCD camera 201 and a coaxial light 202. CCD camera 201 is connected to housing 11 and positioned above fixture assembly 1, with its imaging end facing downward, for photographing and positioning the product from above. Accordingly, coaxial light 202 is fixedly mounted on CCD camera 201, providing supplementary light for CCD camera 201 and ensuring reliable photographic positioning.

[0069] Preferably, a lifting assembly is also provided between the outer cover 11 and the CCD camera 201, and the CCD camera 201 is connected to the frame 10 through the lifting assembly, so that the CCD camera 201 can be driven to move along the Z axis relative to the frame 10 through the lifting assembly to adjust the distance between the CCD camera 201 and the product according to needs.

[0070] Furthermore, if Figure 4 As shown in the figure, the moving assembly in the preferred embodiment is fixedly arranged on the frame 10, including an X-axis moving module 3, a Y-axis moving module 4 and a Z-axis moving module 5, to control the movement of the friction rod assembly 6 along the X-axis, Y-axis and Z-axis respectively.

[0071] The X-axis moving module 3 is arranged on the Y-direction side of the fixture assembly 1 , and the gantry 8 is connected to the X-axis moving module 3 so as to drive the gantry 8 to move along the X-axis direction through the X-axis moving module 3 .

[0072] Preferably, linear guide rails extending along the X-axis are respectively provided on both sides of the Y-direction of the clamp assembly 1, and the two ends of the gantry 8 are respectively slidably connected to the two linear guide rails to guide the movement of the gantry along the X-axis direction through the two linear guide rails.

[0073] Accordingly, the Y-axis moving module 4 is fixedly arranged on the gantry 8 and moves along with the gantry 8 .

[0074] At the same time, the Z-axis moving module 5 is connected to the Y-axis moving module 4 to drive the Z-axis moving module 5 to move along the Y direction through the Y-axis moving module 4. The friction rod assembly 6 is connected to the Z-axis moving module 5 to move up and down along the Z direction under the drive of the Z-axis moving module 5.

[0075] Preferably, when multiple fixture assemblies 1 are arranged in sequence along the Y direction on the frame 10, multiple Z-axis moving modules 5 are also arranged correspondingly in the moving assembly. The multiple Z-axis moving modules 5 are arranged on the Y-axis moving module 4 at intervals along the Y direction, and each Z-axis moving module 5 is controlled separately, and a friction rod assembly 6 is set on each Z-axis moving module 5 to test multiple products at the same time.

[0076] Furthermore, if Figure 5 As shown in the figure, the friction rod assembly 6 in the preferred embodiment includes a friction rod 601, a buffer tube 602 and a buffer spring 603; wherein the buffer tube 602 is connected to the Z-axis moving module 5, which is a cylindrical structure with an open end and extends along the Z direction; one end of the friction rod 601 is inserted into the buffer tube 602 from the opening, and a conductive voltage head 605 is provided at the other end to contact and mark the product through the conductive voltage head 605.

[0077] At the same time, the buffer spring 603 is arranged in the buffer tube 602, and one end of the buffer spring 603 abuts against the buffer tube 602, and the other end abuts against the end face of the friction rod 601 facing away from the conductive voltage head 605, so that the buffer spring 603 can buffer the contact between the conductive voltage head 605 and the product to avoid damage to the product during the pressing process. At the same time, the buffer spring 603 can also overcome the deformation of the product caused by the pressing of the conductive voltage head 605.

[0078] Preferably, the conductive pressure head 605 is a replaceable pressure head 6051 and is compatible with multiple sets of pressure heads to achieve rapid cutting of the equipment, and the replaceable pressure head 6051 is installed on the friction rod 601 through the conversion column 6052.

[0079] Preferably, a sliding groove 6021 extending along the Z direction is provided on the side wall of the buffer cylinder 602, and a sliding pin 604 is provided on the side wall of the friction rod 601 away from the conductive voltage head 605. One end of the sliding pin 604 is fixed on the friction rod 601, and the other end is embedded in the sliding groove 6021 and can be moved along the extension direction of the sliding groove 6021, so as to limit and guide the movement of the friction rod 601 relative to the buffer cylinder 602 through the sliding pin 604.

[0080] Further preferably, a bushing 607 is fixedly provided on the friction rod 601, and one end of the bushing 607 abuts against the end face of the buffer tube 602, and the other end is passed through the buffer tube 602 and slidably abuts against the inner wall of the buffer tube 602 to ensure that the friction rod 601 always remains in a vertical state during the movement, thereby reducing the amount of shaking of the friction rod 601 during operation.

[0081] Preferably, a pressure sensor 606 is also provided between the friction rod assembly 6 and the moving assembly, specifically between the buffer cylinder 602 and the Z-axis moving module 5, to monitor and feedback the current pressure size of the friction rod 601 in real time. The Z-axis moving module 5 controls the lifting and lowering stroke of the friction rod 601 according to the feedback data.

[0082] In actual use, users can select the corresponding pressure head according to the product to be tested, and set the required pressure value and running path.

[0083] Preferably, when multiple Z-axis movable modules 5 are arranged at intervals along the Y direction, the friction rod assembly 6 is preferably connected to the Z-axis movable module 5 through a sliding assembly 7, so that the friction rod assembly 6 can move along the Y direction relative to the Z-axis movable module 5 to adjust the spacing between two adjacent friction rod assemblies 6.

[0084] Specifically, the sliding assembly 7 includes a fixed block 701 and a slider 702, wherein the fixed block 701 is fixedly connected to the Z-axis moving module 5, and a groove 7011 extending along the Y direction is provided on the fixed block 701; at the same time, a protrusion 7021 is provided on the slider 702, and the protrusion 7021 can be matched and embedded in the groove 7011 and can slide along the extension direction of the groove 7011.

[0085] Accordingly, the friction rod assembly 6 is fixed on the slider 702 so as to move along the Y direction with the slider 702 ; at the same time, the verticality of the friction rod 601 is ensured by the concave-convex fit between the fixing block 701 and the slider 702 .

[0086] Further preferably, corresponding to the movement of the slider 702 along the Y direction, a second scale line 703 is provided on the fixed block 701 in a matching extension direction of the groove 7011 .

[0087] Furthermore, in the preferred embodiment, a PG module 9 is provided for lighting the corresponding product, which is arranged below the fixture assembly 1, and a plug-in interface 1011 is provided on the base 101, so that the product is plugged into the PG module 9 through the plug-in interface 1011 to light up the product; at the same time, the PG module 9 is used for information reception and transmission and information collection and processing, and the abnormal status of the product during the test process is monitored in real time and a signal is output.

[0088] The device is also equipped with a control system, which is a multi-axis servo system, to control the high-precision operation of the device. A display 12 is also provided for the control system and is fixed to the side wall of the housing 11 so that the device's operating status can be observed through the display 12.

[0089] In actual settings, an emergency stop button and an operation button can also be configured on the outer cover 11, wherein the emergency stop button is used to cut off the power supply in an emergency, and the operation button is used to execute common operations with one button.

[0090] Furthermore, the working process of the friction durability testing equipment in the present invention is as follows:

[0091] (1) The operator adjusts the position of the fixture 102 by visually observing the first scale line 106 on the fixture assembly 1, and after fixing the fixture 102 with the knob screw 105, clamps the product on the fixture 102 to roughly locate the position of the product; at the same time, the product is connected to the PG module 9 and the product is lit.

[0092] (2) The upper CCD camera 201 captures the product, obtains the actual position of the product and feeds it back to the control system. The control system calculates the X and Y axis movement required for the friction rod 601 to achieve the current predefined motion trajectory based on the actual position of the product.

[0093] (3) After the friction rod 601 reaches the predetermined position driven by the X-axis moving module 3 and the Y-axis moving module 4, the Z-axis moving module 5 drives the friction rod 601 down to contact the product panel, and the pressure sensor 606 feeds back the pressure value in real time, and accurately controls the lifting stroke of the friction rod 601 based on the fed-back pressure value to ensure that the friction rod 601 falls into place.

[0094] It can be understood that when multiple friction rod assemblies 6 are arranged along the Y direction, the descending amount of each friction rod assembly 6 is independently controlled according to its own actual feedback value.

[0095] (4) After the friction rod 601 is lowered into position, the X-axis moving module 3 and the Y-axis moving module 4 are combined to drive the friction rod 601 to realize various customized marking trajectories, and then the Z-axis moving module 5 is assisted by the lifting and lowering movement to realize multi-point and multi-segment trajectories.

[0096] (5) The PG module 9 receives the status information of the product when the friction rod 601 is marking in real time, collects and processes the information, and outputs a signal when the product is in an abnormal state.

[0097] It is understandable that when using this device to perform touch screen friction durability testing, the operator only needs to perform rough positioning and plug in the wires to light up, without any other operations, which reduces the complexity of manual operations. The preset programs and parameters in the equipment can automatically complete subsequent touch durability tests, effectively improving test efficiency and reducing labor costs.

[0098] The touch screen friction durability testing equipment of the utility model has a simple structure, high test accuracy, and a high degree of automation. It can adapt to various test requirements, ensure the consistency of multiple test variables, has wide applicability, meets the various usage requirements of customers, and has good application prospects and promotion value.

[0099] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A touch screen friction durability testing device, characterized in that: It includes a frame, a fixture assembly, a moving assembly, a friction rod assembly and a camera assembly; The clamp assembly is fixed on the frame and is used to fix the product; The moving assembly is fixed on the frame; the friction rod assembly is fixed on the moving assembly and is arranged above the clamp assembly, and can mark the product under the drive of the moving assembly; The camera assembly is arranged above the fixture assembly to position the product.

2. The touch screen friction durability testing equipment according to claim 1, characterized in that: The camera assembly includes a CCD camera and a coaxial light; The CCD camera is connected to the outer cover and can move relative to the frame along the Z axis; the coaxial light is fixedly arranged on the CCD camera to provide light source for the CCD camera.

3. The touch screen friction durability testing equipment according to claim 1, characterized in that: The fixture assembly includes a base and a plurality of fixtures movably connected to the base, and a clamping space is formed between the plurality of fixtures.

4. The touch screen friction durability testing equipment according to claim 3, characterized in that: The fixture assembly also includes an X-guide rail, a Y-guide rail and a knob screw; Two Y-direction guide rails are provided at intervals along the X direction, extending along the Y direction and fixed on the base; Two X-guide rails are provided at intervals along the Y direction, extending along the X direction, and two ends of the X-guide rails are slidably connected to the two Y-guide rails, and the plurality of jigs are slidably connected to the two X-guide rails; The knob screw is used to fix the X-guide rail and the fixture after movement; The X-guide rail and the Y-guide rail are both provided with first scale lines.

5. The touch screen friction durability testing equipment according to claim 1, characterized in that: The friction rod assembly includes a buffer cylinder, a friction rod and a buffer spring; The buffer cylinder is connected to the moving assembly and is a cylindrical structure with one end open and extending along the Z direction; one end of the friction rod is inserted into the buffer cylinder, and the other end is provided with a conductive voltage head; The buffer spring is arranged in the buffer tube, with one end thereof abutting against the inside of the buffer tube and the other end abutting against the end surface of the friction rod facing away from the conductive voltage head.

6. The touch screen friction durability testing equipment according to claim 5, characterized in that: A sliding groove extending in the Z direction is provided on the side wall of the buffer cylinder, and a sliding pin is provided on the side wall of the friction rod away from the conductive voltage head. The pin is embedded in the sliding groove and can move along the extension direction of the sliding groove; and / or, A bushing is fixedly mounted on the friction rod, one end of the bushing abuts against the end surface of the buffer tube, and the other end is passed through the buffer tube and slidably abuts against the inner wall of the buffer tube; and / or, A pressure sensor is also included, and the pressure sensor is arranged between the friction rod assembly and the moving assembly.

7. The touch screen friction durability testing device according to any one of claims 1 to 6, characterized in that: The mobile assembly includes an X-axis mobile module, a Y-axis mobile module, a Z-axis mobile module and a gantry; The X-axis moving module is arranged on the Y-direction side of the fixture assembly, and the gantry is connected to the X-axis moving module so as to drive the gantry to move along the X-axis direction through the X-axis moving module; linear guide rails extending along the X-axis are also provided on both sides of the Y-direction of the fixture assembly, and the two ends of the gantry are respectively slidably connected to the two linear guide rails; The Y-axis moving module is fixedly arranged on the gantry; The Z-axis moving module is connected to the Y-axis moving module to drive the Z-axis moving module to move along the Y direction through the Y-axis moving module; the friction rod assembly is connected to the Z-axis moving module to move up and down along the Z direction under the drive of the Z-axis moving module.

8. The touch screen friction durability testing device according to claim 7, characterized in that: A plurality of fixture assemblies are sequentially arranged on the frame along the Y direction; Correspondingly, a plurality of Z-axis moving modules are arranged on the Y-axis moving module at intervals along the Y direction, and the friction rod assembly is arranged on each Z-axis moving module.

9. The touch screen friction durability testing device according to claim 8, characterized in that: The friction rod assembly is connected to the Z-axis moving module via a sliding assembly; The sliding assembly includes a fixed block and a slider, the fixed block is connected to the Z-axis moving module, a groove extending along the Y direction is provided on the fixed block, and a second scale line is provided on the fixed block corresponding to the groove; A protrusion is provided on the slider, and the protrusion is matched and embedded in the groove and can slide along the extension direction of the groove. The friction rod assembly is fixedly connected to the protrusion so that the distance between two adjacent friction rod assemblies can be adjusted by moving along the groove.

10. The touch screen friction durability testing device according to claim 1, characterized in that: It also includes a PG module; the PG module is arranged below the clamp assembly, and a plug interface is provided on the clamp assembly, and the product passes through the plug interface and is plugged into the PG module.

Images