Accurate assembly jig for liquid crystal screen

Abstract

The utility model discloses a liquid crystal screen accurate assembly jig, which relates to the technical field of liquid crystal screen production and comprises a base, two side plates are slidably mounted at the top end of the base, a supporting plate is fixedly mounted at the top end of the base, and two buffer rods are fixedly mounted at the top end of the supporting plate. The top ends of the two buffer rods are fixedly provided with the same top plate, the bottom end of the top plate is fixedly provided with a monitoring head, the top end of the base is fixedly provided with two lamp sources, the two side plates extrude each other, guide plates are arranged on the inner sides of the side plates, the guide plates synchronously apply acting force to the two ends of a back plate, and the pushing acting force is the same. The back plate is pushed to be aligned with the side end of the supporting plate, meanwhile, a mounting rod penetrates through the interior of the adjusting plate and is mounted in the top plate, the adjusting plate can drive the liquid crystal screen to horizontally slide at the bottom end of the top plate, the position of the liquid crystal screen is adjusted according to the position of the back plate, and alignment assembling is conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal screen production, in particular to a precise assembly jig for liquid crystal screens. Background Art

[0002] The LCD screen is mainly composed of the LCD panel, backlight, drive circuit and other parts. The LCD panel is composed of two glass substrates and a liquid crystal layer sandwiched in between. Tools are needed to assemble the LCD screen and the backlight module. In actual applications, the LCD screen assembly jig usually requires the following technologies:

[0003] 1. Positioning mechanism to ensure that the LCD screen and other related components can be accurately placed in the predetermined position during the assembly process;

[0004] 2. Clamping mechanism to ensure they remain stable during assembly and will not loosen or fall off;

[0005] 3. The guide mechanism helps operators to perform assembly operations more accurately.

[0006] At present, the existing assembly jig (such as patent publication number: CN220526136U) discloses a high-definition LCD screen assembly fixture, which uses a vacuum adsorption plate to further adsorb and strengthen the connection strength to prevent it from falling. The cylinder body drives the LCD screen and the LCD screen frame to be connected, so that the LCD screen and the LCD screen frame are assembled together. The operation is very convenient and greatly saves time.

[0007] The LCD screen and the backlight module are aligned and installed, and assembled by mechanical fixation or glue bonding. The position of the positioning fixture is adjusted through manual observation. The fixture drives the LCD screen to move, which will cause shaking. When the LCD screen and the backlight module are assembled, the assembly accuracy of the two will decrease and deviations will easily occur. Utility Model Content

[0008] (1) Technical problems solved: In response to the shortcomings of the existing technology, the present invention provides a precise assembly jig for liquid crystal screens, which solves the technical problem that the position of the positioning fixture is adjusted through manual observation, and the fixture drives the LCD screen to move, which will cause shaking. When assembling the LCD screen and the backlight module, the accuracy of the assembly of the two will decrease, and deviations will easily occur.

[0009] (2) Technical Solution: To achieve the above objectives, this utility model is implemented through the following technical solutions:

[0010] A precise assembly jig for liquid crystal screens comprises a base, two side panels being slidably mounted on the top of the base, a support plate being fixedly mounted on the top of the base, two buffer rods being fixedly mounted on the top of the support plate, a top plate being fixedly mounted on the top of the two buffer rods, a monitoring head being fixedly mounted on the bottom end of the top plate, and two light sources being fixedly mounted on the top of the base.

[0011] Preferably: a mounting rod is fixedly installed inside the top plate, an adjustment plate is slidably installed inside the top plate, at least two suction cups are fixedly installed on the bottom end of the adjustment plate, a guide plate is fixedly installed on the inner side of each side plate, a connecting plate is fixedly installed on the side end of each side plate, a driving rod is fixedly installed on the side end of each support plate, a transmission plate is fixedly installed on the top end of each driving rod, two first pull rods are rotatably installed on the side end of the transmission plate, a second pull rod is rotatably installed on the side end of the top plate, and a button is provided on the top end of the top plate.

[0012] (III) Beneficial effects: 1. One end of the back panel is aligned with the light source, and a monitoring head is installed at the bottom end of the top panel. The LCD screen and one side of the back panel are accurately detected through the monitoring head. At the same time, two light sources are installed on one side of the back panel. The light source shines upward to check whether the overlapping images of the LCD screen and the side end of the back panel overlap, thereby increasing the accuracy of the assembly process of the LCD screen and the backlight module.

[0013] 2. Apply force to both ends of the back plate synchronously through the transmission plate, and the pushing force is the same, pushing the back plate to align with the side ends of the support plate. At the same time, a mounting rod runs through the inside of the adjustment plate, and the mounting rod is installed inside the top plate. The adjustment plate can drive the LCD screen to slide horizontally at the bottom end of the top plate. According to the position of the back plate, adjust the position of the LCD screen for alignment and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0015] Figure 1 This is a structural diagram of the base of the utility model;

[0016] Figure 2 This is a structural diagram of the adjustment plate of the utility model;

[0017] Figure 3 This is a structural diagram of the side panel of the utility model;

[0018] Figure 4 This is a structural diagram of the transmission plate of the utility model.

[0019] Legend: 11. Base; 12. Side panel; 13. Top panel; 14. Adjustment panel; 15. Button; 16. Monitoring head; 17. Mounting rod; 18. Suction cup; 19. Connecting plate; 21. Transmission plate; 22. First pull rod; 23. Support plate; 24. Buffer rod; 25. Drive rod; 26. Second pull rod; 27. Light source; 28. Guide plate. DETAILED DESCRIPTION

[0020] The embodiment of the present application provides a precise assembly jig for LCD screens, which effectively solves the problem of adjusting the position of the positioning fixture through manual observation. The fixture drives the LCD screen to move, which will cause shaking. When the LCD screen and the backlight module are assembled, the accuracy of the assembly of the two will decrease, and deviations will easily occur. By aligning one end of the back panel with the light source, a monitoring head is installed at the bottom end of the top panel, and the LCD screen and one side of the back panel are accurately detected by the monitoring head. At the same time, two light sources are installed on one side of the back panel. The light source shines upward to check whether the overlapping images of the LCD screen and the side end of the back panel overlap, thereby increasing the accuracy of the assembly process of the LCD screen and the backlight module.

[0021] Example: Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that when the position of the positioning fixture is adjusted by manual observation, the fixture drives the LCD screen to move, which will cause shaking, and the assembly accuracy of the LCD screen and the backlight module will be reduced, and deviations will easily occur. The overall idea is as follows:

[0022] In response to the problems existing in the prior art, the utility model provides a precise assembly jig for a liquid crystal screen, comprising a base 11, two side panels 12 being slidably mounted on the top of the base 11, a support plate 23 being fixedly mounted on the top of the base 11, two buffer rods 24 being fixedly mounted on the top of the support plate 23, the same top plate 13 being fixedly mounted on the top of the two buffer rods 24, a monitoring head 16 being fixedly mounted on the bottom end of the top plate 13, two light sources 27 being fixedly mounted on the top of the base 11, two light sources 27 being mounted on the top of the base 11, the light sources 27 irradiating upward, one end of the back plate being aligned with the light sources 27, and a monitoring head 16 being mounted on the bottom end of the top plate 13, the monitoring head 16 being used to accurately detect one side of the liquid crystal screen and the back plate through the monitoring head 16, and two light sources 27 being mounted on one side of the back plate, the light source 27 irradiating upward can be used to check whether the overlapping images of the liquid crystal screen and the side ends of the back plate overlap.

[0023] The top of the top plate 13 is fixedly installed with a mounting rod 17, and the top of the top plate 13 is slidably installed with an adjustment plate 14. At least two suction cups 18 are fixedly installed on the bottom end of the adjustment plate 14. A guide plate 28 is fixedly installed on the inner side of each side plate 12, and a connecting plate 19 is fixedly installed on the side end of each side plate 12. A driving rod 25 is fixedly installed on the side end of each support plate 23, and a transmission plate 21 is fixedly installed on the top end of each driving rod 25. The movement of the transmission plate 21 pulls the second pull rod 26 and the end of the first pull rod 22. The two first pull rods 22 rotate at the side end of the transmission plate 21, and the first pull rod 22 applies tension to the two side plates 12, so that the two side plates 12 synchronously squeeze the back plate, actively aligning the back plate with the side end of the support plate 23, and the side end of the transmission plate 21 is rotatably installed with two first pull rods 22, and the side end of the top plate 13 is rotatably installed with a second pull rod 26. A button 15 is provided at the top of the top plate 13.

[0024] Working principle:

[0025] In the first step, a motor and a vacuum pump are installed at the bottom end of the base 11, and a button 15 is installed at the top end of the top plate 13. By pressing the button 15, the vacuum pump is started, and at the same time, a circuit is installed inside the top plate 13 and connected to the motor, so that multiple suction cups 18 adsorb the LCD screen and secure the LCD screen to the bottom end of the adjustment plate 14. By moving the back plate, the back plate is placed on the top end of the base 11, and the two side plates 12 are squeezed against each other. A guide plate 28 is provided on the inner side of the side plate 12, and the guide plate 28 applies force to both ends of the back plate synchronously, and the pushing force is the same, pushing the back plate to align with the side end of the support plate 23. At the same time, a mounting rod 17 is passed through the interior of the adjustment plate 14, and the mounting rod 17 is installed inside the top plate 13. The adjustment plate 14 can drive the LCD screen to slide horizontally at the bottom end of the top plate 13, and adjust the position of the LCD screen according to the position of the back plate for alignment and assembly.

[0026] In the second step, by pushing the driving rod 25, the driving rod 25 is extended to one side, and a transmission plate 21 is installed on the top of the driving rod 25. The transmission plate 21 slides horizontally to one side. The movement of the transmission plate 21 pulls the second pull rod 26 and the end of the first pull rod 22. The two first pull rods 22 rotate at the side ends of the transmission plate 21, and the first pull rods 22 apply tension to the two side plates 12, so that the two side plates 12 synchronously squeeze the back plate, actively align the back plate with the side ends of the support plate 23, and fix the position of the back plate. At the same time, through one of the transmission plates 21, the transmission plate 21 pulls the end of the second pull rod 26, and the second pull rod 26 is pulled. The rod 26 rotates at the side end of the top plate 13, pulling the top plate 13 downward, allowing the top plate 13 to drive the LCD screen to be aligned with the back plate for installation. At the same time, two light sources 27 are installed on the top of the base 11. The light sources 27 shine upward, and one end of the back plate is aligned with the light sources 27. A monitoring head 16 is installed at the bottom end of the top plate 13. The monitoring head 16 is used to accurately detect one side of the LCD screen and the back plate. At the same time, two light sources 27 are installed on one side of the back plate. The light source 27 shines upward to check whether the overlapping images of the LCD screen and the side ends of the back plate overlap, thereby increasing the accuracy of the assembly process of the LCD screen and the backlight module.

[0027] Finally, it should be noted that the above embodiments are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to enumerate all embodiments here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A precise assembly jig for a liquid crystal screen, comprising a base (11), characterized in that: Two side plates (12) are slidably mounted on the top of the base (11), a support plate (23) is fixedly mounted on the top of the base (11), two buffer rods (24) are fixedly mounted on the top of the support plate (23), the tops of the two buffer rods (24) are fixedly mounted with the same top plate (13), the bottom end of the top plate (13) is fixedly mounted with a monitoring head (16), and two light sources (27) are fixedly mounted on the top of the base (11).

2. The LCD screen precision assembly jig according to claim 1, characterized in that: A mounting rod (17) is fixedly mounted inside the top plate (13), an adjustment plate (14) is slidably mounted inside the top plate (13), and at least two suction cups (18) are fixedly mounted on the bottom end of the adjustment plate (14).

3. The LCD screen precision assembly jig according to claim 1, characterized in that: A guide plate (28) is fixedly mounted on the inner side of each side plate (12), and a connecting plate (19) is fixedly mounted on the side end of each side plate (12).

4. The LCD screen precision assembly jig according to claim 1, characterized in that: A driving rod (25) is fixedly mounted on the side end portion of each support plate (23).

5. The LCD screen precision assembly jig according to claim 4, characterized in that: A transmission plate (21) is fixedly mounted on the top end of each driving rod (25), and two first pull rods (22) are rotatably mounted on the side end of the transmission plate (21).

6. The LCD screen precision assembly jig according to claim 1, characterized in that: A second pull rod (26) is rotatably mounted on the side end of the top plate (13), and a button (15) is provided on the top end of the top plate (13).

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