Punching and positioning jig for glass grinding disc of liquid crystal screen

Abstract

The utility model belongs to the technical field of liquid crystal display glass grinding disc machining, and particularly relates to a liquid crystal display glass grinding disc trepanning and positioning jig which comprises a placing frame, two sets of electric push rods, a first sliding groove frame, a second sliding groove frame and two band-type brake motors are arranged below the placing frame, and a controller is arranged on the front face of the placing frame. The telescopic end of each electric push rod is fixedly connected with a limiting column, the outer surface of each limiting column makes contact with the inner wall of the containing frame, the interior of the first sliding groove frame is slidably connected with two first sliding frames, and the interior of the second sliding groove frame is slidably connected with a second sliding frame. The equipment can be controlled to be opened and closed or positively and negatively adjusted, the grinding disc can be placed through the placement frame, meanwhile, the two sets of limiting columns can be driven to move close to or away from each other through stretching and retracting of the electric push rod, and therefore the grinding discs of various specifications and models can be positioned to the placement frame through movement of the limiting columns.

Description

Technical Field

[0001] This utility model belongs to the field of LCD screen glass grinding disc processing technology, specifically relating to an LCD screen glass grinding disc hole positioning fixture. Background Technology

[0002] The LCD screen glass grinding disc hole positioning fixture is a tooling fixture specifically designed for precise positioning of the grinding disc during the LCD screen glass grinding disc processing to ensure the accuracy of the hole opening position. It is mainly used to achieve precise positioning of the grinding disc when performing hole opening operations on the LCD screen glass grinding disc. Through a specific positioning structure and principle, it can accurately fix the glass grinding disc in a predetermined position, providing a reference for subsequent hole opening processing, ensuring that the hole opening position meets the design requirements, and satisfying the strict standards for hole opening accuracy of the glass grinding disc in the LCD screen production process.

[0003] However, although the drilling positioning fixture for LCD screen glass grinding discs greatly improves the accuracy and efficiency of drilling, in actual use, most drilling positioning fixtures are designed based on LCD screen glass grinding discs of specific sizes and shapes. Fixtures designed for a certain model of LCD screen glass grinding disc are difficult to be directly applied to grinding discs of different sizes. Once the product specifications change, the fixture needs to be redesigned and manufactured, which makes it inconvenient to use.

[0004] To address the aforementioned issues, this application proposes a positioning fixture for opening holes in a glass grinding disc for LCD screens. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a positioning fixture for opening holes in a glass grinding disc for LCD screens, which is adaptable to various types of grinding discs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for opening holes in a glass grinding disc for a liquid crystal screen, comprising a placement frame, two sets of electric push rods, a first sliding frame, a second sliding frame, and two brake motors respectively arranged below the placement frame, a controller arranged on the front of the placement frame, a limit post fixedly connected to the telescopic end of each electric push rod, the outer surface of each limit post contacting the inner wall of the placement frame, two first sliding frames slidably connected inside the first sliding frame, a second sliding frame slidably connected inside the second sliding frame, the upper surface of each first sliding frame fixedly connected to the bottom surface of the placement frame, the upper surface of the second sliding frame fixedly connected to the bottom surface of the first sliding frame, threaded rods arranged above the first and second sliding frames, the two threaded rods being threadedly connected to the inner walls of the first and second sliding frames respectively, and one end of each threaded rod being fixedly connected to the output end of the brake motor.

[0007] As a preferred embodiment of this utility model, a protective ring is fixedly connected to the outer surface of each of the limiting posts, and each of the protective rings must be made of soft rubber.

[0008] As a preferred technical solution of this utility model, each set of electric push rods has an auxiliary plate fixedly connected to one end of each group that is far apart from the other, and the upper surface of each auxiliary plate is fixedly connected to the bottom surface of the placement frame.

[0009] As a preferred embodiment of this utility model, a fixing plate is fixedly connected to the back of the controller, and the back of the fixing plate is fixedly connected to the front of the placement rack.

[0010] As a preferred technical solution of this utility model, the outer surface of each threaded rod is rotatably connected to two limiting frames, and the bottom surface of each set of limiting frames is fixedly connected to the inner bottom wall of the first slide frame and the second slide frame, respectively.

[0011] As a preferred technical solution of this utility model, each of the brake motors is fixedly connected to a fixed base on its bottom surface, and the side of each fixed base that is close to each other is fixedly connected to the left side of the first slide rail and the front side of the second slide rail respectively.

[0012] As a preferred embodiment of this utility model, the bottom surface of the second slide rail is fixedly connected to two connecting frames, and each connecting frame has two fixing pins engaged inside.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a controller, the device can be controlled to open and close or adjust forward and reverse. The grinding disc can be placed using the placement rack. At the same time, the extension and retraction of the electric push rod can drive the two sets of limiting posts to move closer or further apart. Thus, by moving the limiting posts, grinding discs of various specifications and models can be positioned on the placement rack. Then, by using the forward or reverse rotation of the brake motor, the threaded rod can be driven to rotate. Through the rotation of the threaded rod and the thread, the first sliding frame and the second sliding frame can slide within the first sliding frame and the second sliding frame. At the same time, by using the movement of the first sliding frame and the second sliding frame, the position of the placement rack can be adjusted. Thus, the positioning position of the placement rack can be adjusted according to the drilling needs and the size of the grinding disc, further improving the convenience of drilling and positioning of the grinding disc for LCD screen glass. Attached Figure Description

[0014] 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:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the placement rack in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the first slide rail frame in this utility model;

[0018] Figure 4 This is a cross-sectional view of the second slide rail frame in this utility model;

[0019] In the diagram: 1. Placement frame; 2. Second slide rail frame; 3. Controller; 4. Threaded rod; 5. Brake motor; 6. Fixing plate; 7. Assist plate; 8. Electric push rod; 9. Protective ring; 10. Limiting post; 11. Second sliding frame; 12. First sliding frame; 13. First slide rail frame; 14. Fixing base; 15. Connecting frame; 16. Limiting frame; 17. Fixing pin. Detailed Implementation

[0020] 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. Example

[0021] Please see Figure 1-4 This utility model provides the following technical solution: a positioning fixture for opening holes in a glass grinding disc for a liquid crystal screen, including a placement frame 1. Two sets of electric push rods 8, a first sliding frame 13, a second sliding frame 2, and two brake motors 5 are respectively arranged below the placement frame 1. A controller 3 is arranged on the front of the placement frame 1. Each electric push rod 8 has a fixedly connected limit post 10 at its telescopic end. The outer surface of each limit post 10 is in contact with the inner wall of the placement frame 1. Two first sliding frames 12 are slidably connected inside the first sliding frame 13, and a second sliding frame 11 is slidably connected inside the second sliding frame 2. Each first... The upper surface of the sliding frame 12 is fixedly connected to the bottom surface of the placement frame 1, and the upper surface of the second sliding frame 11 is fixedly connected to the bottom surface of the first sliding frame 13. Threaded rods 4 are provided above the first sliding frame 13 and the second sliding frame 2. The two threaded rods 4 are respectively threadedly connected to the inner walls of the first sliding frame 12 and the second sliding frame 11. One end of each threaded rod 4 is fixedly connected to the output end of the brake motor 5. In this embodiment, the inner walls of the first sliding frame 12 and the second sliding frame 11 are threaded and cooperate with the threads of the threaded rods 4, so that they can move by rotating the threaded rods 4.

[0022] Specifically, a protective ring 9 is fixedly connected to the outer surface of each limiting post 10. Each protective ring 9 must be made of soft rubber. In this embodiment, the soft material of the protective ring 9 itself can protect the surface of the limiting post 10 and the grinding disc.

[0023] Specifically, each set of electric push rods 8 has an auxiliary plate 7 fixedly connected to one end of each other. The upper surface of each auxiliary plate 7 is fixedly connected to the bottom surface of the placement frame 1. In this embodiment, the electric push rods 8 can be fixed to the placement frame 1 through the auxiliary plate 7, so that the electric push rods 8 can be used in a fixed manner.

[0024] Specifically, a fixing plate 6 is fixedly connected to the back of the controller 3. The back of the fixing plate 6 is fixedly connected to the front of the placement frame 1. In this embodiment, the controller 3 can be fixed by the fixing plate 6. The controller 3 refers to the master control device that controls the starting, speed regulation, braking and reversing of the motor by changing the wiring of the main circuit or control circuit and changing the resistance value in the circuit according to a predetermined sequence.

[0025] Specifically, each threaded rod 4 has two limiting frames 16 rotatably connected to its outer surface. The bottom surface of each set of limiting frames 16 is fixedly connected to the inner bottom wall of the first slide frame 13 and the second slide frame 2, respectively. In this embodiment, the threaded rod 4 can be fixedly supported on the first slide frame 13 and the second slide frame 2 through the limiting frames 16, thereby enabling the threaded rod 4 to rotate stably.

[0026] Specifically, each brake motor 5 has a fixed base 14 fixedly connected to its bottom surface. The side of each fixed base 14 that is close to each other is fixedly connected to the left side of the first slide rail 13 and the front side of the second slide rail 2. In this embodiment, the brake motor 5 can be fixedly used through the fixed base 14. At the same time, the brake motor 5 is a special motor with a braking device.

[0027] Specifically, the bottom surface of the second slide frame 2 is fixedly connected to two connecting frames 15. Each connecting frame 15 has two fixing pins 17 inside. In this embodiment, the connecting frame 15 can be connected to the equipment, and the fixing pins 17 can be used to fix the connecting frame 15, thereby allowing the second slide frame 2 to be fixed.

[0028] The working principle and usage process of this utility model are as follows: First, the brake motor 5, electric push rod 8, and controller 3 are connected to the power supply via wires. Simultaneously, the brake motor 5 and electric push rod 8 are connected to the controller 3 via wires. The second slide rail 2 is placed below the opening position of the LCD screen glass grinding disc, and the connecting frame 15 is fixed to the equipment via the fixing pin 17, thereby fixing the second slide rail 2, the first slide rail 13, and the placement frame 1. When it is necessary to open the grinding disc, the grinding disc is placed on the placement frame 1. Simultaneously, the controller 3 activates the extension and retraction of the electric push rod 8. The extension and retraction of the electric push rod 8 causes the limiting posts 10 to slide within the placement frame 1. Furthermore, the movement of each set of limiting posts 10 towards or away from each other... The protective ring 9 moves with the movement of the protective ring 9, and the limiting post 10, in conjunction with the movement of the protective ring 9, squeezes and positions grinding discs of different sizes. Then, the controller 3 starts the brake motor 5 to rotate forward or backward. At the same time, the brake motor 5 drives the threaded rod 4 to rotate. Through the rotation of the threaded rod 4 and the thread, the first sliding frame 12 slides in the first sliding frame 13, and the second sliding frame 11 slides in the second sliding frame 2. Through the sliding of the first sliding frame 12 and the second sliding frame 11, the placement frame 1 is adjusted to adjust its left, right, front, and back positions. This allows the placement frame 1 to be adjusted according to the position of the opening and the model and position of the grinding disc, further enabling convenient positioning and opening of grinding discs of different sizes.

[0029] 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 positioning fixture for opening holes in a glass grinding disc for a liquid crystal display screen, characterized in that: The utility model provides a kind of automatic feeding device for automatic feeding of multiple products, including placing rack (1), the lower of the placing rack (1) is respectively provided with two groups of electric push rod (8), first sliding groove frame (13), second sliding groove frame (2) and two clutch motors (5), the front of the placing rack (1) is provided with controller (3), the telescopic end of each electric push rod (8) is fixedly connected with limit post (10), the outer surface of each limit post (10) is in contact with the inner wall of placing rack (1), the inside of the first sliding groove frame (13) is slidably connected with two first sliding frames (12), the inside of the second sliding groove frame (2) is slidably connected with second sliding frame (11), the upper surface of each first sliding frame (12) is fixedly connected with the bottom surface of placing rack (1), the upper surface of second sliding frame (11) is fixedly connected with the bottom surface of first sliding groove frame (13), the upper of the first sliding groove frame (13) and second sliding groove frame (2) is provided with threaded rod (4), two threaded rods (4) are respectively threadedly connected with the inner wall of first sliding frame (12) and second sliding frame (11), one end of each threaded rod (4) is fixedly connected with the power output end of clutch motor (5).

2. The hole positioning jig for a liquid crystal screen glass polishing disc according to claim 1, wherein: The outer surface of each limit post (10) is fixedly connected with a protective ring (9), each protective ring (9) is soft rubber.

3. The hole positioning jig for a liquid crystal screen glass polishing disc according to claim 1, wherein: The end of each electric push rod (8) away from each other is fixedly connected with a booster plate (7), the upper surface of each booster plate (7) is fixedly connected with the bottom surface of placing rack (1).

4. The hole positioning jig for a liquid crystal screen glass polishing disc according to claim 1, wherein: The back of the controller (3) is fixedly connected with a fixed plate (6), and the back of the fixed plate (6) is fixedly connected with the front of the placing rack (1).

5. The hole positioning jig for a liquid crystal screen glass polishing disc according to claim 1, wherein: The outer surface of each threaded rod (4) is rotatably connected with two limit frames (16), and the bottom surface of each limit frame (16) is fixedly connected with the inner bottom wall of the first sliding groove frame (13) and the second sliding groove frame (2).

6. The hole positioning jig for a liquid crystal screen glass polishing disc according to claim 1, wherein: The bottom surface of each clutch motor (5) is fixedly connected with a fixed seat (14), and each fixed seat (14) is fixedly connected with the left side of the first sliding groove frame (13) and the front of the second sliding groove frame (2) on the side face close to each other.

7. The hole positioning jig for a liquid crystal screen glass polishing disc according to claim 1, wherein: The bottom surface of the second sliding groove frame (2) is fixedly connected with two connecting frames (15), and the inside of each connecting frame (15) is clamped with two fixed pins (17).

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