CN210776090U - A liquid crystal module pressing fixture - Google Patents

Abstract

The utility model provides a liquid crystal module pressing fixture, which comprises an upper die and a lower die, the lower die is provided with a lower die pressing fixture body, the middle part of the lower die pressing fixture body is provided with a groove, and the left side of the groove is provided with a groove. The lower die press-fit fixture body is fixedly connected with a spring positioning block, the spring positioning block is connected with a spring, the other end of the spring is connected with a baffle, and the baffle moves left and right under the expansion and contraction of the spring to position and fix the backlight module; The lower mold pressing fixture body on the right side of the groove is provided with an adjustable limit slider, and the adjustable limit slider is provided with a preset adjustment hole. The fixed connection position of the jig body ensures that the OC LCD screen is centered and attached; it solves the technical problem that the existing pressing jig cannot accurately locate and install the OC LCD screen, and can be widely used in the technical field of LCD module structure.

Description

A liquid crystal module pressing fixture

technical field

The utility model relates to the technical field of liquid crystal module structures, in particular to a liquid crystal module pressing fixture.

Background technique

For the existing frameless LCD module, the design should try to ensure that the OC LCD screen and the plastic middle frame have the same size, so as to make it easier to align when attaching. But sometimes, in order to be compatible with multiple OC LCD screens, the length of the OC LCD screen is smaller than the plastic middle frame, and the OC LCD screen shrinks inward.

When assembling the LCD module in the current solution, a press-fit jig is used for positioning and installation. However, for this type of OC LCD screen that shrinks in size, the OC LCD screen can only be centered and attached to the plastic by visually comparing the gap between the two sides. On the middle frame, the efficiency is low and the defect rate is high; if automatic equipment is used, the cost and space requirements are relatively high, and the actual implementation is difficult.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the deficiencies of the above technologies, and to provide a liquid crystal module pressing fixture with simple structure, easy operation, high pressing efficiency and good effect.

To this end, the present invention provides a liquid crystal module pressing jig, which includes an upper mold and a lower mold, the lower mold is provided with a lower mold pressing jig body, and the middle part of the lower mold pressing jig body is provided with a groove, a concave The lower die pressing fixture body on the left side of the groove is fixedly connected with a spring positioning block, the spring positioning block is connected with a spring, and the other end of the spring is connected with a baffle plate, which moves left and right under the expansion and contraction of the spring; on the right side of the groove The lower die pressing fixture body is provided with an adjustable limit slider, the adjustable limit slider is provided with a preset adjustment hole, and the adjustable limit slider uses connecting screws to pass through the preset adjustment hole and the lower mold press fit fixture body. Fixed connection.

Preferably, the upper die is provided with an upper die pressing fixture body, the upper die pressing fixture body is provided with a positioning column, the lower die pressing fixture body is provided with a positioning hole, and the positioning column is arranged in the positioning hole.

Preferably, the lower end surface of the upper mold pressing jig body is provided with rectangular buffer foam strips that are connected end to end.

Preferably, a handle is provided on the upper end face of the upper die pressing fixture body.

Preferably, a guide through hole is formed through the spring positioning block, and the guide through hole coincides with the central axis of the spring.

Preferably, the lower mold pressing fixture body on the lower side of the groove is further provided with a ground side positioning block.

Preferably, the bottom surface of the groove is provided with a buffer foam strip.

Preferably, there are two adjustable limit sliders, spring positioning blocks, and ground-side positioning blocks, respectively.

The utility model provides a liquid crystal module pressing fixture, which has the following beneficial effects:

The utility model comprises an upper die and a lower die, the lower die is provided with a lower die press-fitting jig body, the middle part of the lower die press-fitting jig body is provided with a groove, and the lower die press-fitting jig body on the left side of the groove is fixedly connected with a spring The positioning block, the spring positioning block is connected with a spring, and the other end of the spring is connected with a baffle plate; the lower mold pressing fixture body on the lower side of the groove is also provided with a ground side positioning block. The combination of the spring positioning block, the spring, the baffle plate and the ground positioning block fixes the backlight module in the groove. The lower die pressing fixture body on the right side of the groove is provided with an adjustable limit slider, the left end face of the adjustable limit slider is in contact with the right end face of the OC LCD screen, and the position of the adjustable limit slider can be adjusted accurately. The position of the OC LCD screen is positioned so that the OC LCD screen is centered and attached to the plastic middle frame; it effectively solves the technical problem that the OC LCD screen of the flat frameless LCD module is not centered.

The utility model has the advantages of simple structure and easy operation, which can be adapted to the central installation of OC liquid crystal screens of different sizes, greatly improves the production efficiency and has a good pressing effect. It is obtained by reasonable modification on the basis of the original pressing fixture, which not only makes reasonable use of resources, but also reduces the burden on enterprises.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is the structural representation of the top view of the lower die of the present invention;

3 is a schematic diagram of the combined structure of a spring positioning block, a spring and a baffle plate of the present invention;

Fig. 4 is the structural representation of the left side view of Fig. 3;

5 is a schematic structural diagram of the adjustable limit slider of the present invention;

Fig. 6 is the structural representation of the bottom view of the upper die of the present utility model;

FIG. 7 is a schematic view of the structure of the liquid crystal module installed in the groove of the lower mold pressing fixture body;

8 is a schematic diagram of the operation of the present invention when the liquid crystal module is pressed together.

Markings in the picture: 1. Lower die pressing body, 2. Groove, 3. Buffer foam strip, 4. Adjustable limit slider, 5. Preset adjustment hole, 6. Spring positioning block, 7. Spring , 8. Baffle plate, 9. Guide through hole, 10. Guide column, 11. Ground side positioning block, 12. Upper mold pressing body, 13. Positioning column, 14. Positioning hole, 15. Handle, 16. Backlight Module, 17. OC LCD screen, 18. Plastic middle frame.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments to help understand the content of the present utility model. The methods used in the present invention are conventional methods unless otherwise specified; the raw materials and devices used are conventional commercial products unless otherwise specified.

As shown in FIG. 1-FIG. 5, the present invention provides a liquid crystal module pressing jig, which includes an upper mold and a lower mold, the lower mold is provided with a lower mold pressing jig body 1, and the lower mold pressing and bonding jig body 1 There is a groove 2 in the middle of it, which is used for accommodating the backlight module 16. The bottom surface of the groove 2 is provided with a buffer foam strip 3 , which acts as a buffer and protects the assembled backlight module 16 . The lower mold pressing body 1 on the left side of the groove 2 is fixedly connected with a spring positioning block 6, the spring positioning block 6 is connected with a spring 7, and the other end of the spring 7 is connected with a baffle 8. The baffle 8 moves left and right. In order to better position the baffle 8, the spring positioning block 6 is provided with a guide through hole 9 along the expansion and contraction direction of the spring 7. The guide through hole 9 coincides with the central axis of the spring 7, and the baffle 8 is fixedly connected with a guide column 10. , the guide post 10 is arranged in the spring 7 and extends in the guide through hole 9 at the same time. When the spring 7 is compressed, the baffle plate 8 moves to the left, and the guide post 10 also moves to the left and passes through the left side of the guide through hole 9 . The lower die pressing fixture body 1 on the right side of the groove 2 is provided with an adjustable limit slider 4, and the adjustable limit slider 4 is provided with a preset adjustment hole 5, and the preset adjustment hole 5 is elongated and adjustable. The limit slider 4 uses connecting screws to adjust the fixed connection position with the lower die press-fit jig body 1 through the preset adjustment holes 5 .

When assembling the liquid crystal module, compress the spring 7, put the backlight module 16 into the groove 2 of the lower mold press-fit jig body 1, release the spring 7, and the baffle 8 moves to the right to push against the left end face of the backlight module 16 , so that the right end face of the backlight module 16 is in contact with the right inner side wall of the groove 2 . After the backlight module 16 is positioned and fixed, the OC liquid crystal screen 17 is installed. According to the size of the OC liquid crystal screen 17, the position of the adjustable limit slider 4 is adjusted through the preset adjustment hole 5, so that when the OC liquid crystal screen 17 is centered on the plastic middle frame 18, the left end face of the adjustable limit slider 4 and The right end surface of the OC liquid crystal screen 17 abuts to ensure that the OC liquid crystal screen 17 is centered and attached to the plastic middle frame 18 . The OC liquid crystal screen 17 and the plastic middle frame 18 are fixedly connected together by double-sided foam glue. The structure and positional connection relationship of the backlight module 16 and the plastic middle frame 18 are not described in detail here because they belong to the prior art.

In order to prevent the backlight module 16 from sliding down, the lower mold pressing jig body 1 on the lower side of the groove 2 is also provided with a ground side positioning block 11, and the ground measuring positioning block 11 is in contact with the lower end surface of the backlight module 16, and is connected with the connecting screw through the connecting screw. The lower die press-fit fixture body 1 is fixedly connected together.

As shown in FIG. 6 , the upper die is provided with an upper die pressing jig body 12 , the upper die pressing jig body 12 is provided with a positioning column 13 , and the lower die pressing fixture body 1 is provided with a positioning hole 14 , and the positioning column 13 is provided in the positioning The hole 14 plays a guiding role to ensure the accurate alignment of the upper and lower molds and prevent pressure deviation. The lower end surface of the upper mold pressing fixture body 12 is also provided with rectangular buffer foam strips 3 connected end to end, which protect the OC liquid crystal screen 17 during pressing.

After the OC liquid crystal screen 17 and the backlight module 16 are installed, the pressing starts. First, insert the positioning post 13 into the positioning hole 14, so that the upper mold pressing jig body 12 is slowly moved downward, the buffer foam strip 3 is in contact with the OC LCD screen 17, and is pressed against the plastic middle frame 18 to which the double-sided foam adhesive is attached. position, the OC liquid crystal screen 17 and the plastic middle frame 18 of the backlight module 16 are in full contact and firmly adhered; in order to ensure the effect of lamination, the lamination time is about 20s.

A handle 15 is also provided on the upper end surface of the upper die press-fitting fixture body 12, which is convenient for manual operation.

There are two adjustable limit sliders 4 , spring positioning blocks 6 , and ground-side positioning blocks 11 respectively, which are convenient for more accurate positioning and fixing.

As shown in Fig. 7-Fig. 8, the working process of the present utility model is:

First, compress the spring 7, put the backlight module 16 into the groove 2 of the lower mold press-fitting jig body 1, release the spring 7, and the baffle 8 pushes against the left end face of the backlight module 16 under the action of the spring 7, so that the The backlight module 16 is positioned and fixed. Next, the ground-side positioning block 11 is installed to lock the backlight module 16 . Next, place the OC liquid crystal screen 17 . According to the size of the OC liquid crystal screen 17 , adjust the position of the adjustable limit slider 4 and fix it so that the left end face of the adjustable limit slider 4 is in contact with the right end face of the OC liquid crystal screen 17 . . Then, insert the positioning post 13 of the upper mold into the positioning hole 14 of the lower mold, so that the upper mold pressing jig body 12 is moved down and fully contacted with the OC liquid crystal screen 17, so that the OC liquid crystal screen 17 and the plastic middle frame 18 are firmly pasted and pressed. The integration process is complete.

In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inside", The orientation or positional relationship indicated by "outer", "back", "middle", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that A device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

Only the above-mentioned are only specific embodiments of the present invention, and should not limit the scope of implementation of the present invention, so the replacement of its equivalent components, or the equivalent changes and modifications made according to the scope of the patent protection of the present invention , should still belong to the scope covered by the claims of the present utility model.

Claims (8)

1. A liquid crystal module pressing jig, which comprises an upper mold and a lower mold, wherein the lower mold is provided with a lower mold pressing jig body, and the middle part of the lower mold pressing jig body is provided with a concave. groove, the lower die press-fit fixture body on the left side of the groove is fixedly connected with a spring positioning block, the spring positioning block is connected with a spring, and the other end of the spring is connected with a baffle plate. The lower baffle moves left and right under telescopic; the lower die pressing fixture body on the right side of the groove is provided with an adjustable limit slider, the adjustable limit slider is provided with a preset adjustment hole, the adjustable limit slider The limit slider is fixedly connected with the lower die pressing jig body through the preset adjustment hole by using a connecting screw. 2 . The liquid crystal module pressing jig according to claim 1 , wherein the upper die is provided with an upper die pressing jig body, and the upper die pressing jig body is provided with a positioning post, so that 2 . The lower die pressing fixture body is provided with a positioning hole, and the positioning column is arranged in the positioning hole. 3 . The liquid crystal module pressing jig according to claim 2 , wherein the lower end surface of the upper die pressing jig body is provided with rectangular buffer foam strips that are connected end to end. 4 . 4 . The liquid crystal module pressing jig according to claim 2 , wherein a handle is provided on the upper end surface of the upper die pressing jig body. 5 . 5 . The liquid crystal module pressing jig according to claim 1 , wherein a guide through hole is formed through the spring positioning block, and the guide through hole coincides with the central axis of the spring, so the The baffle is fixedly connected with a guide column, and the guide column is arranged in the spring and extends into the guide through hole at the same time. 6 . The liquid crystal module pressing jig according to claim 1 , wherein the lower mold pressing jig body on the lower side of the groove is further provided with a ground side positioning block. 7 . 7 . The liquid crystal module pressing jig according to claim 1 , wherein the bottom surface of the groove is provided with a buffer foam strip. 8 . 8 . The liquid crystal module pressing jig according to claim 6 , wherein there are two adjustable limit sliders, the spring positioning blocks, and the ground-side positioning blocks, respectively. 9 .

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