A grinding disc for cleaning the surface of glass substrates

Abstract

This utility model belongs to the field of glass substrate production technology, and in particular to a grinding disc for cleaning the surface of glass substrates. It includes a fixed frame and a grinding disc body, and further includes: a rotating column, the top end of which is rotatably connected to the fixed frame; a rotating frame; a mounting slide plate; a primary drive motor fixed to the top surface of the mounting slide plate for driving the grinding disc body to rotate; a horizontal cylinder; and a drive mechanism drivably connected to the rotating column for driving the rotating column to rotate. In this utility model, the drive mechanism drives the rotating frame to rotate in a horizontal plane, and the horizontal cylinder drives the mounting slide plate to move horizontally, adjusting the position of the grinding disc body. The position of the grinding disc body can be adjusted according to the size of the glass substrate, meeting the grinding processing needs of glass substrates of different sizes. It has a wide range of applications and significantly improves production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of glass substrate production technology, and specifically relates to a grinding disc for cleaning the surface of glass substrates. Background Technology

[0002] The most important component of an LCD screen is the glass substrate. To ensure the display performance of the LCD screen, the glass substrate used in the LCD screen needs to be extremely flat. Therefore, the glass plates produced by the float glass process need to be surface treated, and the uneven surface of the glass plates needs to be ground to make the surface flat.

[0003] Currently, grinding discs of polishing equipment are commonly used to grind and polish the surface of glass substrates. The grinding discs can be raised, lowered, and rotated. After the glass substrate is placed in the fixture and clamped, the grinding discs move down and rotate to grind and polish the surface of the glass substrate.

[0004] For example, in the prior art, Chinese utility model patent with authorization announcement number CN222244253U discloses "a grinding device for producing liquid crystal glass substrates", which includes a grinding base, a support frame fixedly installed on the outside of the grinding base, and the grinding base is fixedly supported by the support frame. At the same time, a fixing table is fixedly installed inside the grinding base, and the surface of the fixing table is adsorbed and fixed to the glass substrate body by a vacuum suction cup. The surface of the glass substrate body is covered with a grinding disc, and a mounting box is provided on the upper side of the grinding disc. At the same time, a drive motor is fixedly installed inside the mounting box.

[0005] While existing grinding devices, including those described above, can meet general grinding needs, the position of the grinding disc is not adjustable. Therefore, when grinding glass substrates larger than the grinding disc, it is necessary to replace them with larger grinding discs, which is troublesome and reduces production efficiency.

[0006] To address the aforementioned problems, this invention proposes a grinding disc for cleaning the surface of glass substrates. Utility Model Content

[0007] To address the aforementioned problems in the existing technology, this utility model provides a grinding disc for cleaning the surface of glass substrates, which is convenient to use, easy to adjust, and has high production efficiency.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a grinding disc for cleaning the surface of a glass substrate, comprising a fixing frame and a grinding disc body, and further comprising:

[0009] A rotating column, the top of which is rotatably connected to the fixed frame;

[0010] A rotating frame, which is fixed to the bottom end of the rotating column, and has mounting sliding holes machined on the rotating frame;

[0011] The mounting slide is slidably installed in the mounting hole, and the grinding disc body is rotatably installed on the bottom side of the mounting slide.

[0012] A first drive motor is fixed to the top surface of the mounting plate and is used to drive the grinding disc body to rotate.

[0013] A horizontal cylinder is fixed to one end of the rotating frame, and the piston rod of the horizontal cylinder is fixedly connected to the mounting plate.

[0014] A drive mechanism is drivably connected to the rotating column and is used to drive the rotating column to rotate.

[0015] As a preferred embodiment of this utility model, the driving mechanism includes:

[0016] An active synchronizing pulley is rotatably mounted on the bottom side of the fixed frame;

[0017] The second drive motor is fixed to the top surface of the fixed frame and is used to drive the active synchronous wheel to rotate.

[0018] Driven synchronous pulley, the driven synchronous pulley is fixed on the rotating column;

[0019] A timing belt, which is tensioned by the driving timing pulley and the driven timing pulley.

[0020] In a preferred embodiment of this invention, the outer wall of the mounting slide plate abuts against the inner wall of the mounting hole.

[0021] As a preferred technical solution of this utility model, it also includes:

[0022] Two guide sliders are symmetrically fixed to the outer wall of the mounting slide plate, and a guide groove is machined on the inner wall of the mounting hole for the guide sliders to be embedded.

[0023] In a preferred embodiment of this invention, the outer wall of the guide slider abuts against the inner wall of the guide groove.

[0024] As a preferred technical solution of this utility model, it also includes:

[0025] A guide rod is fixed inside the guide groove and passes through the guide slider.

[0026] As a preferred technical solution of this utility model, it also includes:

[0027] A first connecting flange is fixed to the bottom end of the output shaft of the first drive motor, and the first connecting flange is fixedly connected to the grinding disc body with bolts.

[0028] As a preferred technical solution of this utility model, it also includes:

[0029] The second connecting flange is fixed to the bottom end of the rotating column, and the second connecting flange is fixedly connected to the rotating frame with bolts.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] In this invention, a drive mechanism drives a rotating frame to rotate in a horizontal plane, and a horizontal cylinder drives a mounting plate to move horizontally, adjusting the position of the grinding disc body. The position of the grinding disc body can be adjusted according to the size of the glass substrate, satisfying the grinding processing of glass substrates of different sizes. It has a wide range of applications and greatly improves production efficiency.

[0032] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0033] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0034] Figure 1 This is a schematic diagram of the structure of this utility model;

[0035] Figure 2 This utility model Figure 1 A magnified schematic diagram of the drive mechanism in the diagram;

[0036] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the diagram;

[0037] Figure 4 This utility model Figure 1 Enlarged structural diagram at point B in the diagram;

[0038] Figure 5 This utility model Figure 1 A magnified structural diagram at point C in the diagram.

[0039] In the diagram: 1. Fixed frame; 2. Rotating column; 3. Rotating frame; 31. Mounting slide hole; 32. Guide slide groove; 4. Mounting slide plate; 41. Guide slider; 5. Grinding disc body; 6. Drive motor No. 1; 7. Horizontal cylinder; 8. Drive mechanism; 81. Active synchronous pulley; 82. Drive motor No. 2; 83. Driven synchronous pulley; 84. Synchronous belt; 9. Guide rod; 10. Connecting flange No. 1; 11. Connecting flange No. 2. Detailed Implementation

[0040] 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.

[0041] Please see Figures 1-5 The present invention provides the following technical solution: a grinding disc for cleaning the surface of a glass substrate, comprising a fixing frame 1 and a grinding disc body 5, and further comprising: a rotating column 2, a rotating frame 3, a mounting plate 4, a first drive motor 6, a horizontal cylinder 7 and a drive mechanism 8.

[0042] Furthermore, by Figure 1 As shown in this embodiment, the top of the rotating column 2 is rotatably connected to the fixed frame 1, the rotating frame 3 is fixed to the bottom of the rotating column 2, and a mounting sliding hole 31 is machined on the rotating frame 3. The mounting slide plate 4 is slidably installed in the mounting sliding hole 31, the grinding disc body 5 is rotatably installed on the bottom side of the mounting slide plate 4, the first drive motor 6 is fixed to the top surface of the mounting slide plate 4, and is used to drive the grinding disc body 5 to rotate. The horizontal cylinder 7 is fixed to one end of the rotating frame 3, and the piston rod of the horizontal cylinder 7 is fixedly connected to the mounting slide plate 4. The drive mechanism 8 is drivably connected to the rotating column 2, and is used to drive the rotating column 2 to rotate. With the above scheme, when in use, the fixed frame 1 is fixed to the grinding equipment frame with bolts, the grinding disc body 5 is driven to rise and fall by the power system of the grinding equipment, and the grinding disc body 5 is driven to rotate by the first drive motor 6. After the glass substrate is clamped, the first drive motor 6 is started to drive the grinding disc body 5 to rotate, and at the same time the power system of the grinding equipment is started to lower the grinding disc body 5 until the grinding disc body 5 contacts the glass substrate to grind and polish the glass substrate.

[0043] If the glass substrate is large (the grinding disc body 5 cannot completely cover the glass substrate), the drive mechanism 8 is activated to drive the rotating column 2 to rotate around its axis, causing the rotating frame 3 to revolve synchronously. At the same time, the horizontal cylinder 7 pushes the mounting slide plate 4 to slide horizontally within the mounting slide hole 31 of the rotating frame 3 through the piston rod, so that the center of the grinding disc body 5 is dynamically adjusted in the radial direction of the rotating frame 3. The first drive motor 6 drives the grinding disc body 5 to rotate at a speed independent of the revolution, and the grinding layer on its bottom surface contacts the surface of the glass substrate. Through the compound motion of revolution + rotation + horizontal sliding, all-round grinding is achieved.

[0044] Traditional fixed grinding discs are prone to leaving cleaning blind spots, while this solution uses a three-degree-of-freedom motion of revolution, rotation, and horizontal sliding to make the grinding path present a complex spiral trajectory, covering any position on the surface of the glass substrate, which is especially suitable for cleaning the edges and corners of large-size substrates (such as G12 LCD glass).

[0045] Optionally, by Figure 1 and Figure 2 As shown, in this embodiment, the drive mechanism 8 includes: a driving synchronous pulley 81, a second drive motor 82, a driven synchronous pulley 83, and a synchronous belt 84. The driving synchronous pulley 81 is rotatably mounted on the bottom side of the fixed frame 1. The second drive motor 82 is fixed on the top surface of the fixed frame 1 and is used to drive the driving synchronous pulley 81 to rotate. The driven synchronous pulley 83 is fixed on the rotating column 2. The synchronous belt 84 is tensioned between the driving synchronous pulley 81 and the driven synchronous pulley 83. With the above scheme, when in use, the second drive motor 82 is started, and the output shaft of the second drive motor 82 drives the driving synchronous pulley 81 to rotate. Since the synchronous belt 84 is tensioned between the driving synchronous pulley 81 and the driven synchronous pulley 83, the rotation of the driving synchronous pulley 81 will be transmitted to the driven synchronous pulley 83 through the synchronous belt 84, causing the driven synchronous pulley 83 to rotate. The driven synchronous pulley 83 drives the rotating frame 3 to rotate synchronously through the rotating column 2.

[0046] Synchronous belt drives are characterized by smooth transmission and accurate transmission ratio. They can ensure that the speeds of the driven synchronous pulley 83 and the driving synchronous pulley 81 are precisely proportional. This allows the driven synchronous pulley 83, which is fixed on the rotating column 2, to drive the rotating column 2 to rotate stably on the fixed frame 1. The rotation of the rotating column 2, in turn, drives the rotating frame 3, which is fixed at its bottom, to rotate together. This causes all the components installed on the rotating frame 3 to revolve around the axis of the rotating column 2.

[0047] Preferably, by Figure 1 and Figure 3As shown, in this embodiment, the outer wall of the mounting slide plate 4 abuts against the inner wall of the mounting slide hole 31. With the above solution, during use, the inner wall of the mounting slide hole 31 and the outer wall of the mounting slide plate 4 adopt a precision sliding fit of H7 / g6 grade (H7 / g6 is the clearance fit code) (the inner diameter tolerance of the mounting slide hole 31 is +0.015mm, and the outer diameter tolerance of the mounting slide plate 4 is -0.010mm). The fit clearance is controlled at 5-15μm to ensure that the mounting slide plate 4 can only move linearly along the axis of the mounting slide hole 31 without radial wobble.

[0048] Preferably, by Figure 1 and Figure 3 As shown, this embodiment also includes: guide sliders 41, two guide sliders 41 are symmetrically fixed to the outer wall of the mounting slide plate 4, and guide grooves 32 are machined on the inner wall of the mounting slide hole 31 for the guide sliders 41 to be embedded. With the above solution, when the horizontal cylinder 7 drives the mounting slide plate 4 to slide in the mounting slide hole 31 during use, the symmetrically arranged guide sliders 41 and guide grooves 32 form a precise constraint.

[0049] It may also be necessary to further explain that, in use, the guide slider 41 and the guide groove 32 adopt P5 grade rolling linear guide pair technology. The bottom surface of the guide slider 41 is inlaid with a steel ball retainer (φ3mm steel balls, 10mm spacing), which forms rolling friction with the hardened track (HRC58-62) on the bottom surface of the guide groove 32. The friction coefficient μ=0.005, which reduces sliding friction and ensures smoother movement.

[0050] Preferably, by Figure 1 and Figure 3 As shown in this embodiment, the outer wall of the guide slider 41 abuts against the inner wall of the guide groove 32. After adopting the above solution, when the horizontal cylinder 7 drives the mounting plate 4 to move during use, the four outer walls of the guide slider 41 and the four inner walls of the guide groove 32 form a full circumferential precision abutment, and the stability performance is further improved.

[0051] Preferably, by Figure 1 and Figure 3 As shown, in this embodiment, it also includes a guide rod 9, which is fixed in the guide groove 32 and passes through the guide slider 41. With the above solution, when in use, the guide rod 9 is fixed in the guide groove 32 with an interference fit (φ10mm H7 / k6) and passes through the guide slider 41 to form a double guide constraint.

[0052] The guide rod 9 and the guide slider 41 through hole adopt a precision cylindrical fit (tolerance ±0.005mm) to limit the radial runout of the guide slider 41 (≤0.01mm).

[0053] The guide surface of the guide groove 32 abuts against the outer wall of the guide slider 41, restricting axial swing (rotation angle around the axis of the guide rod 9 ≤ 0.05°).

[0054] The guide slider 41 slides simultaneously along the guide rod 9 (linear motion) and the guide groove 32 (linear motion), forming a double-track guide, and the straightness of the trajectory is improved to ≤3μm / 100mm.

[0055] Preferably, by Figure 1 and Figure 4 As shown, this embodiment also includes: a first connecting flange 10, which is fixed to the bottom end of the output shaft of the first drive motor 6, and the first connecting flange 10 is fixedly connected to the grinding disc body 5 with bolts. With the above solution, when in use, the first connecting flange 10 serves as a rigid connecting part between the first drive motor 6 and the grinding disc body 5, and zero-backlash torque transmission is achieved through the bolt group. It also facilitates the installation, use, disassembly and maintenance of the grinding disc body 5.

[0056] Preferably, by Figure 1 and Figure 5 As shown, in this embodiment, it also includes: a second connecting flange 11, which is fixed to the bottom end of the rotating column 2 and is fixedly connected to the rotating frame 3 with bolts. With the above solution, when in use, the second connecting flange 11 serves as a rigid connecting part between the rotating column 2 and the rotating frame 3. High rigidity torque transmission and precise positioning are achieved through the bolt group, which also facilitates installation, use and disassembly maintenance.

[0057] It should be noted that the No. 1 drive motor 6, the horizontal cylinder 7, and the No. 2 drive motor 82 are all commercially available conventional equipment with built-in power switches. Those skilled in the art can make conventional selections according to their needs. Their working principles are common knowledge known to those skilled in the art and have been fully disclosed in the prior art, so they will not be elaborated on further in this article.

[0058] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0059] Components not described in detail in this article are existing technologies.

[0060] The working principle and usage process of this utility model are as follows: When using the grinding disc of this utility model, the fixing frame 1 is fixed to the grinding equipment frame with bolts. The grinding disc body 5 is driven to rise and fall by the power system of the grinding equipment, and the grinding disc body 5 is driven to rotate by the first drive motor 6. After the glass substrate is clamped, the first drive motor 6 is started to drive the grinding disc body 5 to rotate. At the same time, the power system of the grinding equipment is started to lower the grinding disc body 5 until the grinding disc body 5 contacts the glass substrate and grinds and polishes the glass substrate.

[0061] If the glass substrate is too large (the grinding disc body 5 cannot completely cover the glass substrate), the drive mechanism 8 is activated to drive the rotating column 2 to rotate around its axis, which in turn drives the rotating frame 3 to revolve synchronously.

[0062] At the same time, the horizontal cylinder 7 pushes the mounting slide plate 4 to slide horizontally in the mounting slide hole 31 of the rotating frame 3 through the piston rod, so that the center of the grinding disc body 5 is dynamically adjusted in the radial direction of the rotating frame 3. The first drive motor 6 drives the grinding disc body 5 to rotate at a speed independent of the revolution. The grinding layer on its bottom surface contacts the surface of the glass substrate. All-round grinding is achieved through the compound motion of revolution + rotation + horizontal sliding.

[0063] Traditional fixed grinding discs are prone to leaving cleaning blind spots, while this solution uses a three-degree-of-freedom motion of revolution, rotation, and horizontal sliding to create a complex spiral trajectory for the grinding path, covering any position on the surface of the glass substrate. It is especially suitable for cleaning the edges and corners of large substrates.

[0064] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A polishing pad for cleaning a surface of a glass substrate, comprising a fixing frame (1) and a polishing pad body (5), characterized in that, Also includes: Rotating column (2), the top end of which is rotatably connected to the fixed frame (1); Rotating frame (3), the rotating frame (3) is fixed to the bottom end of the rotating column (2), and mounting sliding holes (31) are machined on the rotating frame (3). The mounting slide (4) is slidably mounted in the mounting slide hole (31), and the grinding disc body (5) is rotatably mounted on the bottom side of the mounting slide (4); A first drive motor (6) is fixed to the top surface of the mounting plate (4) and is used to drive the grinding disc body (5) to rotate. A horizontal cylinder (7) is fixed to one end of the rotating frame (3), and the piston rod of the horizontal cylinder (7) is fixedly connected to the mounting plate (4); A drive mechanism (8) is drivably connected to the rotating column (2) for driving the rotating column (2) to rotate.

2. The grinding disc for cleaning the surface of a glass substrate according to claim 1, characterized in that: The drive mechanism (8) includes: Active synchronizing wheel (81), which is rotatably mounted on the bottom side of the fixed frame (1); The second drive motor (82) is fixed to the top surface of the fixed frame (1) and is used to drive the active synchronous wheel (81) to rotate. Driven synchronous pulley (83), the driven synchronous pulley (83) is fixed on the rotating column (2); Synchronous belt (84), which is tensioned by the driving synchronous pulley (81) and the driven synchronous pulley (83).

3. The grinding disc for cleaning the surface of a glass substrate according to claim 1, characterized in that: The outer wall of the mounting slide plate (4) abuts against the inner wall of the mounting slide hole (31).

4. A grinding disc for cleaning the surface of a glass substrate according to claim 1, characterized in that: Also includes: Guide sliders (41), two guide sliders (41) are symmetrically fixed to the outer wall of the mounting slide plate (4), and guide grooves (32) are machined on the inner wall of the mounting slide hole (31) for the guide sliders (41) to be embedded.

5. A polishing disc for cleaning the surface of a glass substrate according to claim 4, characterized in that: The outer wall of the guide slider (41) abuts against the inner wall of the guide groove (32).

6. A polishing disc for cleaning the surface of a glass substrate according to claim 5, characterized in that: Also includes: Guide rod (9), which is fixed in the guide groove (32) and passes through the guide slider (41).

7. A polishing disc for cleaning the surface of a glass substrate according to claim 1, characterized in that: Also includes: A first connecting flange (10) is fixed to the bottom end of the output shaft of the first drive motor (6), and the first connecting flange (10) is fixedly connected to the grinding disc body (5) with bolts.

8. A grinding disc for cleaning the surface of a glass substrate according to claim 1, characterized in that: Also includes: The second connecting flange (11) is fixed to the bottom end of the rotating column (2) and is fixedly connected to the rotating frame (3) with bolts.

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