Positioning mechanism for touch screen machining

Abstract

The utility model relates to the technical field of touch screen processing, discloses a positioning mechanism for touch screen processing, and solves the problems that an existing positioning mechanism for touch screen processing lacks effective protection on corners of a touch screen, is easy to damage the corners due to contact and friction, and is low in universality and positioning precision. The mechanism comprises a workbench, a variable-pitch assembly, a corner clamping and protecting unit and the like, stability of an inverted-T-shaped base plate and related parts of the workbench is guaranteed, the position of the variable-pitch assembly can be flexibly adjusted, an electric telescopic rod in the corner clamping and protecting unit drives a corner frame and a roller to position the corners of the touch screen, the range of the included angle of the corner frame is appropriate, and the roller is made of polyurethane rubber. A photoelectric sensor is further arranged for monitoring, and an elastic washer is arranged for damping, so that accurate positioning of touch screens of different sizes can be achieved, equipment vibration and noise are reduced, the service life of equipment is prolonged, and machining efficiency and product quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of touch screen processing technology, specifically a positioning mechanism for touch screen processing. Background Technology

[0002] In the mass production of touchscreens, automated processes such as cutting, printing, and lamination all rely on accurate positioning. In mass production, positioning systems ensure the consistency of processing position and dimensional parameters for each product. Precise positioning helps reduce defects caused by incorrect processing positions. Inaccurate positioning can result in uneven edges, excessively large or small sizes, making it impossible to install in the corresponding electronic device housing. Through positioning systems, processing equipment can produce according to the same standards and positions, ensuring a high degree of consistency in quality, appearance, and performance across different batches of touchscreens, thus enhancing the product's market competitiveness.

[0003] Chinese patent CN221818404U discloses a positioning mechanism for touchscreen processing. This mechanism mainly consists of a positioning stage, a pair of positioning frames, a clamping plate, a flip-top assembly, and a position control assembly. In use, the touchscreen is first placed on the positioning stage. Then, a second drive motor rotates a bidirectional lead screw, causing the positioning frames to slide relative to each other until they contact the touchscreen. Next, a first drive motor is activated, driving a series of gears, bevel gears, and worm gears to flip the clamping plate, clamping and positioning the touchscreen. However, the clamping plate design in this scheme only considers fixing the main body of the touchscreen and lacks special protection for the corners. During actual processing, the corners of the touchscreen are very likely to come into direct contact and rub against the clamping components of the positioning mechanism. Moreover, this contact and friction are even more frequent during positioning operations and the vibrations of the processing, leaving the corners of the touchscreen without effective buffering and shielding protection.

[0004] In view of the above-mentioned related technologies, a positioning mechanism for touch screen processing is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this utility model is to provide a positioning mechanism for touch screen processing. By using this device, the problems of existing touch screen processing positioning mechanisms, such as lack of effective protection for the edges and corners of the touch screen, easy damage to the edges and corners due to contact and friction, and low versatility and positioning accuracy, are solved.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a positioning mechanism for touch screen processing, comprising a worktable, the worktable being composed of a base plate, slide rails and a central bearing, the base plate having a convex-shaped structure, four slide rails being symmetrically fixedly arranged at the bottom end of the base plate, a central bearing being fixedly arranged at the center of the bottom end of the base plate, the central bearing being movably connected to a pitch-changing assembly via a shaft, the pitch-changing assembly being symmetrically arranged at both ends of the worktable, and corner clamping units being fixedly installed on the pitch-changing assembly;

[0007] The pitch-changing assembly includes a main cylinder, which is fixedly installed at the bottom of the base plate. A displacement plate is fixedly connected to the output end of the main cylinder. A slider and a slide table are symmetrically and fixedly arranged on the displacement plate. A telescopic gas strut is movably connected to the middle of the bottom end of the displacement plate. A steering plate is movably connected to the other end of the telescopic gas strut. The telescopic gas strut is symmetrically arranged at both ends of the steering plate. The steering plate is located at the middle of the bottom end of the worktable and is movably connected to the central bearing.

[0008] Preferably, the slider is movably engaged with the slide rail.

[0009] Preferably, the slide is fixedly connected to the corner clamping unit.

[0010] Preferably, the slide is a hollow, square-shaped structure.

[0011] Preferably, the corner clamping unit includes an electric telescopic rod, which is fixedly installed on a slide table. The end of the electric telescopic rod extending out of the slide table is detachably connected to a corner frame, and the other end of the corner frame is movably connected to a roller. A photoelectric sensor for detecting the height of the electric telescopic rod and preventing the corner frame from colliding with the slide table is fixedly installed on the slide table below the corner frame. The photoelectric sensor measures and triggers corresponding signals by changing the on / off state or intensity of the light beam. Its transmitting end and receiving end are both installed on one side of the top of the slide table.

[0012] Preferably, the roller is made of polyurethane rubber material with a thickness of ten millimeters.

[0013] Preferably, the included angle of the corner frame is between 60 and 90 degrees.

[0014] Preferably, an elastic washer is provided at the connection between the electric telescopic rod and the slide table.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The positioning mechanism for touch screen processing proposed in this utility model can be adapted to touch screens of different sizes through the flexible adjustment of the variable pitch component and the precise cooperation of the corner clamping unit, thereby improving the versatility of the positioning mechanism and making it widely applicable to various touch screen processing processes.

[0017] 2. The positioning mechanism for touch screen processing proposed in this utility model is provided with an elastic washer at the connection between the electric telescopic rod and the slide table to reduce vibration and noise during equipment operation. At the same time, photoelectric sensors are used for real-time monitoring, which not only extends the service life of the equipment, but also ensures the safety of equipment operation and the accuracy of positioning, thereby improving processing efficiency and product quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the variable pitch component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the corner clamping unit structure of this utility model;

[0021] Figure 4 This is a schematic diagram of one side of the structure of this utility model.

[0022] In the diagram: 1. Workbench; 11. Base plate; 12. Slide rail; 13. Center bearing; 2. Pitch control assembly; 21. Main cylinder; 22. Displacement plate; 221. Slider; 222. Slide table; 23. Telescopic gas strut; 24. Steering plate; 3. Corner clamping unit; 31. Electric telescopic rod; 32. Corner frame; 33. Roller; 34. Photoelectric sensor; 35. Elastic washer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0025] Combination Figures 1-4A positioning mechanism for touchscreen processing includes a worktable 1, which consists of a base plate 11, slide rails 12, and a central bearing 13. The base plate 11 has a U-shaped structure, which provides good stability and effectively supports subsequent processing operations. Four slide rails 12 are symmetrically fixed at the bottom of the base plate 11, providing precise guidance for the movement of the slider 221 and ensuring the smoothness and accuracy of the movement of the displacement plate 22. A central bearing 13 is fixedly mounted in the middle of the bottom of the base plate 11. The central bearing 13 is movably connected to a pitch-changing assembly 2 via a shaft, enabling flexible rotation of the pitch-changing assembly 2 and allowing its position to be adjusted according to different touchscreen sizes. The pitch-changing assembly 2 is symmetrically arranged at both ends of the worktable 1, and corner clamping units 3 are fixedly mounted on the pitch-changing assembly 2 for precise touchscreen positioning.

[0026] The variable pitch assembly 2 includes a main cylinder 21, which is fixedly mounted on the bottom of the base plate 11, providing stable support and a mounting base for the main cylinder 21. A displacement plate 22 is fixedly connected to the output end of the main cylinder 21, and the displacement plate 22 is moved by the extension and retraction of the main cylinder 21. A slider 221 and a slide table 222 are symmetrically and fixedly mounted on the displacement plate 22. The slider 221 is movably engaged with the slide rail 12, greatly improving the smoothness and accuracy of the movement of the displacement plate 22. The slide table 222 is fixedly connected to the corner clamping unit 3. The slide table 222 has a hollow, U-shaped structure, which ensures strength, reduces weight, and provides space for internal installation. A telescopic gas strut 23 is movably connected to the middle of the bottom end of the displacement plate 22. The other end of the telescopic gas strut 23 is movably connected to the steering plate 24. The telescopic gas strut 23 is symmetrically arranged at both ends of the steering plate 24. The steering plate 24 is located at the middle of the bottom end of the worktable 1 and is movably connected to the central bearing 13. The position of the pitch-changing assembly 2 can be flexibly adjusted by the extension and retraction of the telescopic gas strut 23 and the rotation of the steering plate 24.

[0027] The corner clamping unit 3 includes an electric telescopic rod 31, which is fixedly mounted on the slide table 222. A corner frame 32 is detachably connected to the end of the electric telescopic rod 31 extending beyond the slide table 222. The included angle of the corner frame 32 is between 60 and 90 degrees, allowing it to closely fit the corners of touchscreens of different sizes for precise positioning. A roller 33 is movably connected to the other end of the corner frame 32. The roller 33 is made of polyurethane rubber with a thickness of 10mm, providing sufficient friction to prevent the touchscreen from sliding while avoiding scratches on its surface. A photoelectric sensor 34 is fixedly mounted on the slide table 222 below the corner frame 32 to detect the height of the electric telescopic rod 31 and prevent the corner frame 32 from colliding with the slide table 222. The photoelectric sensor 34 measures and triggers corresponding signals by detecting the on / off state or intensity change of a light beam. Its transmitting and receiving ends are both mounted on one side of the top of the slide table 222, providing real-time monitoring and ensuring the safety and accuracy of the equipment operation. An elastic washer 35 is provided at the connection between the electric telescopic rod 31 and the slide table 222, which effectively reduces vibration and noise during equipment operation and extends the service life of the equipment.

[0028] Working Principle: When the positioning mechanism for touchscreen processing is working, the main cylinder 21 is fixed at the bottom of the convex-shaped substrate 11. After activation, it pushes the displacement plate 22 to move. The slider 221 on the displacement plate 22 slides on the slide rail 12 to ensure smooth movement. At the same time, the displacement plate 22 is connected to the steering plate 24 through the telescopic gas strut 23. The steering plate 24 moves on the central bearing 13 to adjust the position of the pitch-changing component 2. The design of the touchscreen corner clamping unit 3 fixes the electric telescopic rod 31 on the U-shaped hollow slide table 222. With its precise telescopic control capability, it can achieve sub-millimeter-level height adjustment according to the height requirements of touchscreens of different sizes, greatly improving positioning accuracy. The specific angled frame 32 at its end, with an angle range between 70 and 85 degrees, can work with the pitch-changing component 2 to achieve a tight fit on the corners of the touchscreen. While providing a stable clamping force, it is equipped with polyurethane rubber rollers 33 to avoid scratching the sidewalls of the touchscreen. The height detection and anti-collision photoelectric sensor 34 monitors in real time and can respond quickly by detecting changes in the on / off state or intensity of the light beam, preventing the corner frame 32 from colliding with the slide table 222 and damaging the touch screen, thus ensuring accurate and safe positioning in all aspects.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning mechanism for touch screen processing, comprising a worktable (1), the worktable (1) being composed of a base plate (11), slide rails (12) and a central bearing (13), the base plate (11) having a U-shaped structure, four slide rails (12) being symmetrically fixedly arranged at the bottom end of the base plate (11), and a central bearing (13) being fixedly arranged at the middle of the bottom end of the base plate (11), characterized in that: The central bearing (13) is movably connected to the pitch assembly (2) via a shaft. The pitch assembly (2) is symmetrically arranged at both ends of the worktable (1). The corner clamping unit (3) is fixedly installed on the pitch assembly (2). The pitch-changing assembly (2) includes a main cylinder (21), which is fixedly installed at the bottom of the base plate (11). The output end of the main cylinder (21) is fixedly connected to a displacement plate (22). A slider (221) and a slide table (222) are symmetrically and fixedly arranged on the displacement plate (22). A telescopic gas strut (23) is movably connected to the middle of the bottom end of the displacement plate (22). A steering plate (24) is movably connected to the other end of the telescopic gas strut (23). The telescopic gas strut (23) is symmetrically arranged at both ends of the steering plate (24). The steering plate (24) is located at the middle of the bottom end of the worktable (1). The steering plate (24) is movably connected to the central bearing (13).

2. The positioning mechanism for processing a touch screen according to claim 1, wherein: The slider (221) is movably engaged with the slide rail (12).

3. The positioning mechanism for processing a touch screen according to claim 1, wherein: The slide (222) is fixedly connected to the corner clamping unit (3).

4. The positioning mechanism for processing a touch screen according to claim 1, wherein: The slide (222) has a hollow, square-shaped structure.

5. The positioning mechanism for processing a touch screen according to claim 1, wherein: The corner clamping unit (3) includes an electric telescopic rod (31), which is fixedly installed on the slide table (222). The end of the electric telescopic rod (31) extending out of the slide table (222) is detachably connected to a corner frame (32). The other end of the corner frame (32) is movably connected to a roller (33). A photoelectric sensor (34) for detecting the height of the electric telescopic rod (31) and preventing the corner frame (32) from colliding with the slide table (222) is fixedly installed on the slide table (222) below the corner frame (32). The photoelectric sensor (34) measures and triggers corresponding signals by changing the on / off state or intensity of the light beam. Its transmitting end and receiving end are both installed on one side of the top of the slide table (222).

6. The positioning mechanism for processing a touch screen according to claim 5, wherein: The roller (33) is made of polyurethane rubber material with a thickness of 10 mm.

7. The positioning mechanism for processing a touch screen according to claim 5, wherein: The included angle of the corner frame (32) is between 60 and 90 degrees.

8. The positioning mechanism for processing a touch screen according to claim 5, wherein: An elastic washer (35) is provided at the connection between the electric telescopic rod (31) and the slide (222).

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