Middle frame back glue attaching jig
By designing a mid-frame adhesive bonding fixture, and utilizing components such as vacuum chambers and guide pillars, efficient and precise diaphragm bonding is achieved, solving the problems of time-consuming, labor-intensive, and low-precision traditional manual bonding, and improving product consistency and work efficiency.
Patent Information
- Application Number
- CN202422902490.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Traditional manual film lamination is time-consuming, labor-intensive, and has low precision, making it difficult to ensure product consistency and quality control, and increasing the possibility of rework.
Design a mid-frame adhesive bonding fixture, including a top plate, a bottom plate, a diaphragm positioning assembly, and a product positioning assembly. The diaphragm is held in place by a vacuum chamber and vent holes, and the guide posts and positioning pins ensure precise bonding. Detachable connections and protective sheets are used to prevent product scratches.
It improves the efficiency and precision of film application, ensures accurate product bonding, reduces rework, and enhances work efficiency and product consistency.
Smart Images
Figure CN223545068U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film bonding fixture technology, specifically to a mid-frame adhesive bonding fixture. Background Technology
[0002] Before the mid-plate products are assembled and ready for shipment, four waterproof films need to be applied, and the placement of these films requires strict adherence. Traditional manual application methods are not only time-consuming, labor-intensive, and inefficient, but also have low precision. The human eye may not be able to align the films precisely every time, leading to application deviations and requiring rework. Even the same person may produce variations at different times due to different conditions, making it difficult to guarantee product consistency. It is difficult to implement strict quality control at every step, thus increasing the likelihood of rework. Utility Model Content
[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a mid-frame adhesive bonding fixture with high film application efficiency and high film application precision.
[0004] To achieve the above objectives, the specific solution of this utility model is as follows: A mid-frame adhesive bonding fixture includes a top plate, a bottom plate, a diaphragm positioning assembly, and a product positioning assembly; the diaphragm positioning assembly is used to fix the position of the diaphragm paper to be bonded, and the product positioning assembly is used to fix the position of the product to be bonded; the top plate and the bottom plate are detachably connected; the upper surface of the top plate is provided with multiple guide posts; a vacuum cavity is formed between the top plate and the bottom plate; the top plate is provided with multiple vent holes; all of the multiple vent holes are connected to the vacuum cavity; both the diaphragm positioning assembly and the product positioning assembly include a positioning hole, a telescopic pin, a positioning spring, and a positioning groove; the positioning hole is located on the top plate. Above; the positioning groove is provided on the base plate; the positioning groove is provided below the positioning hole; the telescopic pin is telescopically disposed in the positioning hole; the axial cross-sectional shape of the positioning hole is an inverted "T" shape; the bottom of the telescopic pin is provided with a limiting protrusion for preventing it from disengaging from the positioning hole; the positioning spring is provided between the telescopic pin and the positioning groove; the telescopic pin of the diaphragm positioning assembly is a first positioning pin; the telescopic pin of the product positioning assembly is a second positioning pin; the top surfaces of the first positioning pin and the second positioning pin are both used to support the product; the height of the top surface of the first positioning pin and the top surface of the second positioning pin are both lower than the height of the top surface of the guide post.
[0005] Furthermore, the base plate is also provided with an annular groove; a sealing ring for preventing air leakage from the vacuum chamber is provided in the annular groove.
[0006] Furthermore, the top plate and the bottom plate are detachably connected by nuts.
[0007] Furthermore, each of the guide posts is provided with a guide ramp.
[0008] Furthermore, the top surface of the top plate is provided with an installation groove; the guide post is disposed in the installation groove; a gap groove is provided between the guide post and the installation groove; a protective plate is provided in the gap groove.
[0009] Furthermore, the wire diameter of the positioning spring is in the range of 0.1mm-0.3mm.
[0010] Furthermore, the diameter of the plurality of vent holes ranges from 0.5mm to 1.5mm.
[0011] Furthermore, the top plate is provided with a membrane placement area; multiple ventilation holes are provided in the membrane placement area; and arc-shaped fences are provided on both sides of the membrane placement area.
[0012] The beneficial effects of this utility model are: by setting vent holes, the film to be applied can be firmly sucked and prevented from shifting during the application process; under the restriction of the guide post and the second positioning pin, the product will not be misaligned, and the film application process can be completed accurately and quickly, resulting in high work efficiency. Attached Figure Description
[0013] The utility model will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the base plate of this utility model;
[0016] Figure 3 This is a schematic diagram of the bottom structure of the top plate of this utility model;
[0017] Figure 4 for Figure 1 Enlarged diagram of part A in the middle;
[0018] Figure 5 This is a side view of the present invention;
[0019] Figure 6 This is a cross-sectional view of the present invention.
[0020] The components include: 1. Top plate; 11. Guide post; 12. Vent hole; 13. Positioning hole; 14. Guide slope; 16. Gap groove; 2. Bottom plate; 21. Positioning groove; 22. Positioning spring; 23. Annular groove; 24. Mounting groove; 25. Sealing ring; 31. First positioning pin; 32. Second positioning pin; 33. Limiting protrusion; 4. Vacuum head; 5. Arc-shaped fence. Detailed Implementation
[0021] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.
[0022] like Figure 1-6 As shown, this embodiment of a mid-frame adhesive bonding fixture includes a top plate 1, a bottom plate 2, a diaphragm positioning assembly, and a product positioning assembly. The diaphragm positioning assembly is used to fix the position of the diaphragm paper to be bonded, and the product positioning assembly is used to fix the position of the product to be bonded. The top plate 1 and the bottom plate 2 are detachably connected. The upper surface of the top plate 1 is provided with a plurality of guide posts 11. A vacuum cavity (not shown) is formed between the top plate 1 and the bottom plate 2. The top plate 1 is provided with a plurality of vent holes 12. The plurality of vent holes 12 are all connected to the vacuum cavity. The diaphragm positioning assembly and the product positioning assembly both include a positioning hole 13, a telescopic pin, a positioning spring 22, and a positioning groove 21. The positioning hole 13 is provided on the top plate 1. The positioning groove 21 is provided on the bottom plate 1. 1. The guide pin is located on the base plate 2; the positioning groove 21 is located below the positioning hole 13; the telescopic pin is telescopically located in the positioning hole 13; the axial cross-sectional shape of the positioning hole 13 is an inverted "T" shape; the bottom of the telescopic pin is provided with a limiting protrusion 33 to prevent it from disengaging from the positioning hole 13; the positioning spring 22 is located between the telescopic pin and the positioning groove 21; the telescopic pin of the diaphragm positioning assembly is a first positioning pin 31; the telescopic pin of the product positioning assembly is a second positioning pin 32; the top surfaces of the first positioning pin 31 and the second positioning pin 32 are both used to support the product; the height of the top surface of the first positioning pin 31 and the top surface of the second positioning pin 32 are both lower than the height of the top surface of the guide pin 11.
[0023] Specifically, the film positioning component is used to fix the position of the film to be applied; the product positioning component is used to support the product to be applied; a product placement area for placing the product is formed between the multiple guide posts 11; the film positioning component and the product positioning component are both located within the product placement area.
[0024] The film sheet to be applied (not shown) has through holes at the positions corresponding to the film positioning components, and the product to be applied (not shown) has corresponding positioning grooves at the positions corresponding to the product positioning components. The film positioning components and product positioning components have the same structure. However, since the positions of the through holes on the film sheet to be applied and the positioning grooves on the product are different, and the sizes of the through holes and positioning grooves are not necessarily the same, in actual use, the positions and sizes of the positioning holes 13, first positioning pins 31, positioning springs 22, and positioning grooves 21 in the film positioning components will be set according to the shape of the film sheet to be applied. Similarly, the sizes and positions of the positioning holes 13, second positioning pins 32, positioning springs 22, and positioning grooves 21 in the product positioning components will be set according to the shape of the product. In use, two or more first positioning pins 31 and two or more second positioning pins 32 can be set at suitable positions according to actual conditions.
[0025] In practical applications, to ensure that both the first positioning pin 31 and the second positioning pin 32 can fully retract within their respective positioning holes 13, sufficient downward pressure space is required when the product is pressed down to apply the film. Therefore, the size of the positioning spring 22 and the depth of the positioning groove 21 should be carefully considered to ensure that when the telescopic pins extend out of the positioning holes 13, the top surface height of all the telescopic pins is higher than the top surface height of the top plate 1; and when the telescopic pins retract into the positioning holes 13, the top surface height of all the telescopic pins is lower than the top surface height of the top plate 1. Since a limiting protrusion 33 is provided at the bottom of the telescopic pins—that is, the bottom of both the first positioning pin 31 and the second positioning pin 32—this design effectively prevents the first positioning pin 31 and the second positioning pin 32 from disengaging from the positioning holes 13.
[0026] Specifically, the film to be applied is placed above multiple ventilation holes 12; when vacuuming is performed, the film to be applied is firmly suctioned to prevent it from shifting.
[0027] In use, the vacuum chamber is connected to an external vacuum device via a vacuum head 4. The installation process begins with fixing the base plate 2 onto the workbench. Then, the first positioning pin 31 and the second positioning pin 32 are placed into their corresponding positioning holes 13. A positioning spring 22 is then installed in the positioning groove 21 on the base plate 2, and the top is mounted on the base plate 2. Finally, the guide post 11 is installed. After installation, the film application process can begin. First, align the through-hole on the film paper with the position of the first positioning pin 31, then place it steadily on the surface of the top plate 1. Then, turn on the external vacuum device to tighten the film paper, and then peel off the protective film to expose the film to be applied. Next, align the positioning groove 21 on the product to be applied with the position of the second positioning pin 32, and then gently place the product on the top surface of the second positioning pin 32, where it is lifted. The worker then presses the product down with both hands until the product adheres to the film. Under the constraint of the guide post 11 and the second positioning pin 32, the product will not shift, allowing for precise and rapid film application.
[0028] like Figure 1 , 2 As shown in Figures 3 and 6, in this embodiment, a mid-frame adhesive bonding fixture is provided, wherein the base plate 2 is also provided with an annular groove 23; the annular groove 23 is provided with a sealing ring 25 for preventing air leakage in the vacuum chamber.
[0029] like Figure 1 , 4 As shown in this embodiment, a mid-frame adhesive bonding fixture is provided, wherein the top plate 1 and the bottom plate 2 are detachably connected by nuts. Assembly between the top and bottom plates 2 can be completed by installing and removing the nuts, making installation quick, maintenance convenient, and allowing for easy replacement of different top plates 1.
[0030] like Figure 1 , 4 As shown in this embodiment, a mid-frame adhesive bonding fixture is provided, with each guide post 11 having a guide slope 14. The guide slope 14 is used to guide the product onto the product positioning assembly and is less likely to scratch the product surface.
[0031] like Figure 4 As shown in the figure, in this embodiment of a mid-frame adhesive bonding fixture, the top plate 1 has a mounting groove 24 on its top surface; the guide post 11 is disposed in the mounting groove 24; a gap groove 16 is provided between the guide post 11 and the mounting groove 24; a protective sheet is provided in the gap groove 16. Specifically, the protective sheet (not shown) can be made of 0.2mm silicon steel sheet for adjustment. The above arrangement ensures that a gap is left between the guide post 11 and the product to avoid scratching the surface of the product during the rapid film application process.
[0032] like Figure 1-5As shown in this embodiment, a mid-frame adhesive bonding fixture has a positioning spring 22 with a wire diameter ranging from 0.1mm to 0.3mm. In actual use, the elastic force of the positioning spring 22 should not be too large to avoid local deformation of the product.
[0033] like Figure 1-5 As shown, in this embodiment, a mid-frame adhesive bonding fixture has multiple ventilation holes 12 with a diameter ranging from 0.5mm to 1.5mm. This design ensures that the film to be bonded can be firmly adhered without affecting the flatness of the film due to excessive suction.
[0034] like Figure 5 , 6 As shown in this embodiment, a mid-frame adhesive bonding fixture has a diaphragm placement area on the top plate 1; multiple ventilation holes 12 are located in the diaphragm placement area; and arc-shaped railings 5 are provided on both sides of the diaphragm placement area. Specifically, the curvature of the arc-shaped railings 5 corresponds to the curvature of the product's edge. This design allows for tight bonding of products with rounded corners or arcs, eliminating the need for additional manual tightening of the diaphragm edges.
[0035] The above description is only a preferred embodiment of the present utility model. Therefore, any equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included within the protection scope of the present utility model patent application.
Claims
1. A mid-frame adhesive bonding fixture, characterized in that: It includes a top plate (1), a bottom plate (2), a film positioning assembly, and a product positioning assembly; the film positioning assembly is used to fix the position of the film to be applied, and the product positioning assembly is used to fix the position of the product to be applied; the top plate (1) and the bottom plate (2) are detachably connected; the upper surface of the top plate (1) is provided with multiple guide posts (11); a vacuum cavity is formed between the top plate (1) and the bottom plate (2); the top plate (1) is provided with multiple vent holes (12); all of the multiple vent holes (12) are connected to the vacuum cavity; Both the diaphragm positioning assembly and the product positioning assembly include a positioning hole (13), a telescopic pin, a positioning spring (22), and a positioning groove (21); the positioning hole (13) is located on the top plate (1); the positioning groove (21) is located on the bottom plate (2); the positioning groove (21) is located below the positioning hole (13); the telescopic pin is telescopically located in the positioning hole (13); the axial cross-sectional shape of the positioning hole (13) is an inverted "T" shape; the bottom of the telescopic pin is provided with a limiting protrusion (33) to prevent it from disengaging from the positioning hole (13); the positioning spring (22) is located between the telescopic pin and the positioning groove (21); The telescopic pin of the diaphragm positioning assembly is the first positioning pin (31); the telescopic pin of the product positioning assembly is the second positioning pin (32). The top surfaces of the first positioning pin (31) and the second positioning pin (32) are both used to support the product; the height of the top surface of the first positioning pin (31) and the top surface of the second positioning pin (32) are both lower than the height of the top surface of the guide post (11).
2. The mid-frame adhesive bonding fixture according to claim 1, characterized in that: The base plate (2) is also provided with an annular groove (23); the annular groove (23) is provided with a sealing ring (25) to prevent air leakage from the vacuum chamber.
3. The mid-frame adhesive bonding fixture according to claim 1, characterized in that: The top plate (1) and the bottom plate (2) are detachably connected by nuts.
4. The mid-frame adhesive bonding fixture according to claim 1, characterized in that: Each of the guide posts (11) is provided with a guide ramp (14).
5. The mid-frame adhesive bonding fixture according to claim 1, characterized in that: The top surface of the top plate (1) is provided with an installation groove (24); the guide post (11) is provided in the installation groove (24); a gap groove (16) is provided between the guide post (11) and the installation groove (24); a protective plate is provided in the gap groove (16).
6. The mid-frame adhesive bonding fixture according to claim 1, characterized in that: The wire diameter of the positioning spring (22) ranges from 0.1mm to 0.3mm.
7. The mid-frame adhesive bonding fixture according to claim 1, characterized in that: The aperture of the plurality of vent holes (12) ranges from 0.5 mm to 1.5 mm.
8. The mid-frame adhesive bonding fixture according to claim 1, characterized in that: The top plate (1) is provided with a membrane placement area; multiple ventilation holes (12) are provided in the membrane placement area; and arc-shaped fences (5) are provided on both sides of the membrane placement area.