Auxiliary laminating tool
By setting limiting protrusions and guide slopes on the main body of the tooling, the problem of low positioning accuracy of the diaphragm and rigid plate bonding was solved, achieving high-precision bonding, improving production yield and efficiency, and reducing manufacturing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-03-06
AI Technical Summary
The existing positioning fixture has a complex structure, which results in low positioning accuracy between the diaphragm and the rigid plate, affecting the yield and efficiency of display production.
Design an auxiliary bonding fixture, which uses limiting protrusions distributed around the diaphragm and rigid plate. The limiting protrusions are provided with diaphragm limiting surfaces and rigid plate limiting surfaces, and are connected by guide bevels to achieve precise bonding between the diaphragm and the rigid plate.
It improves the bonding accuracy between the diaphragm and the rigid plate, ensures the production yield and efficiency, avoids the problem of poor assembly accuracy caused by too many assembly parts, simplifies the tooling structure, and reduces manufacturing costs.
Smart Images
Figure CN223972127U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of positioning tooling technology, and in particular to an auxiliary fitting tooling. Background Technology
[0002] In recent years, with the development of passenger vehicle electrification, more and more passenger vehicles have the need to be equipped with in-vehicle displays, which are not limited to in-vehicle driver information displays and central control entertainment information displays.
[0003] Reflective film is an optical material mainly used in display screen backlight modules. Its function is to reflect light leaking through the light guide plate back, reducing light loss and increasing backlight brightness. Currently, common fixtures for bonding light guide plates and reflective films have movable limiting blocks. Although a single fixture can achieve the bonding functions of the reflective film to the backplate and the reflective film to the light guide plate, the overall structure of the fixture is relatively complex and requires assembly before use. The fixture's accuracy is affected by its own assembly accuracy, resulting in low overall bonding and positioning accuracy, leading to low yield and efficiency in display screen production.
[0004] Therefore, in view of the above-mentioned technical problems, how to improve the bonding accuracy between the diaphragm and the rigid plate is a technical problem that needs to be solved by those skilled in the art. Utility Model Content
[0005] The purpose of this application is to provide an auxiliary bonding fixture with a simple structure, no need for secondary assembly, high positioning accuracy of the diaphragm and rigid plate bonding, and low manufacturing cost.
[0006] To achieve the above objectives, this application provides an auxiliary bonding fixture, including a fixture body and a limiting protrusion fixedly disposed on the end face of the fixture body. The limiting protrusion is distributed around the rigid plate and the diaphragm. The inner side of the limiting protrusion is provided with a diaphragm limiting surface and a rigid plate limiting surface perpendicular to the end face of the fixture body. The rigid plate limiting surface is located below the diaphragm limiting surface and protrudes from the diaphragm limiting surface toward the inner side of the limiting protrusion. The bottom edge of the diaphragm limiting surface is higher than the top edge of the rigid plate limiting surface, and the two are connected by a guide slope.
[0007] Preferably, the bottom edge of the diaphragm limiting surface and the top edge of the rigid plate limiting surface are both parallel to the end face of the tooling body, the diaphragm limiting surface is the diaphragm limiting surface, and the rigid plate limiting surface is the rigid plate limiting surface.
[0008] Preferably, the limiting protrusions enclose to form a quadrilateral limiting structure, and the diaphragm limiting surface and the rigid plate limiting surface are at least disposed on the limiting protrusion corresponding to one side of the quadrilateral limiting structure.
[0009] Preferably, the limiting protrusions corresponding to the first, second, and third sides of the quadrilateral limiting structure are provided with the diaphragm limiting surface and the rigid plate limiting surface, and a gap equal to the thickness of the diaphragm is reserved between the side of the rigid plate and the rigid plate limiting surface.
[0010] Preferably, the limiting protrusion corresponding to the fourth side of the quadrilateral limiting structure has a limiting plane on its inner side that is perpendicular to the end face of the tooling body, and the limiting plane abuts against the side of the rigid plate and the diaphragm.
[0011] Preferably, the limiting protrusions corresponding to the fourth side of the quadrilateral limiting structure are intermittently arranged.
[0012] Preferably, the tooling body has notches around its perimeter, and the notches extend inward and beyond the limiting protrusion.
[0013] Preferably, the limiting protrusion breaks off at the notch location, and the notch can be used to insert a finger.
[0014] Preferably, the tooling body is rectangular, and the limiting protrusions are distributed along the outer edge of the rectangular shape of the tooling body.
[0015] Preferably, the limiting protrusion is integrally formed with the tooling body.
[0016] Compared to the aforementioned background technology, this application, by fixing limiting protrusions on the main body of the tooling, avoids the problem of poor assembly accuracy caused by too many assembly parts, and improves the limiting accuracy of the limiting protrusions for the diaphragm and the rigid plate. Simultaneously, the diaphragm limiting surface on the limiting protrusions limits the diaphragm, and the rigid plate limiting surface on the limiting protrusions limits the rigid plate, giving the diaphragm high initial accuracy and ensuring high positioning accuracy of the rigid plate during the bonding process. This results in high bonding accuracy after the diaphragm and rigid plate are bonded, guaranteeing high production yield and efficiency. Furthermore, the guide slope transition between the rigid plate limiting surface and the diaphragm limiting surface allows the diaphragm's flange to accurately contact and press against the side of the rigid plate, preventing wrinkles or bending of the diaphragm's flange and ensuring precise bonding between the diaphragm's flange and the side of the rigid plate. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0018] Figure 1This is a schematic diagram of the auxiliary bonding tooling structure provided in the embodiments of this application;
[0019] Figure 2 This is a cross-sectional view of the auxiliary bonding tooling provided in the embodiments of this application;
[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0021] Figure 4 This is a schematic diagram of the auxiliary bonding fixture, rigid plate, and diaphragm assembly structure provided in the embodiments of this application;
[0022] Figure 5 This is a cross-sectional view of the diaphragm in place as provided in the embodiments of this application;
[0023] Figure 6 This is a cross-sectional view of the rigid board in place as provided in the embodiments of this application;
[0024] Figure 7 for Figure 6 Enlarged view of section B in the middle.
[0025] In the diagram: 1-Main body of the tooling; 2-Limiting protrusion; 3-Diaphragm; 4-Rigid plate;
[0026] 11-Notch; 21-Diaphragm limiting surface; 22-Guide inclined surface; 23-Rigid plate limiting surface; 24-Limiting plane. Detailed Implementation
[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0028] It should be noted that in this embodiment, the orientation or positional relationship indicated by terms such as "upper," "lower," "front," and "rear" is based on the orientation or positional relationship shown in the accompanying drawings. It is used only for the convenience of describing this application and for simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0030] like Figure 1 As shown, in this embodiment, an auxiliary bonding fixture is provided. The fixture includes a fixture body 1 and a limiting protrusion 2. The fixture body 1 serves as the main load-bearing component, and the limiting protrusion 2 is fixedly disposed on the end face of the fixture body 1. It should be noted that the function of the limiting protrusion is to limit the rigid plate 4 and the diaphragm 3 respectively. Therefore, the limiting protrusion 2 needs to be distributed around the hard disk and the diaphragm 3, so as to limit the rigid plate 4 and the diaphragm 3 by using the limiting protrusion 2 around the perimeter. Based on limiting the rigid plate 4 and the diaphragm 3, the bonding and positioning accuracy of the two can be improved.
[0031] Specifically, since the limiting protrusions 2 are distributed around the rigid plate 4 and the diaphragm 3, the limiting protrusions 2 function by limiting their inner surfaces. The inner surfaces limit the sides of the rigid plate 4 and the diaphragm 3, thus achieving the limiting effect. Furthermore, the inner surfaces of the limiting protrusions 2 are provided with a diaphragm limiting surface 21 and a rigid plate limiting surface 23 perpendicular to the end face of the tooling body 1. Please refer to... Figure 2 and Figure 3 The rigid plate limiting surface 23 is located below the diaphragm limiting surface 2, and the rigid plate limiting surface 23 protrudes from the diaphragm limiting surface 21 towards the inner side of the limiting protrusion 2, so that the rigid plate limiting surface 23 and the diaphragm limiting surface 21 are not in the same vertical plane. It should be noted that when the rigid plate 4 and the diaphragm 3 are positioned and bonded, a flange is usually formed on the outer edge of the diaphragm 3, and the flange is pressed against the side of the rigid plate 4. Therefore, the length and / or width of the diaphragm 3 needs to be greater than that of the rigid plate 4, so that the rigid plate limiting surface 23 protrudes from the diaphragm limiting surface 21 to accommodate the different lengths and / or widths of the diaphragm and the rigid plate 4.
[0032] Furthermore, the bottom edge of the diaphragm limiting surface 21 needs to be higher than the top edge of the rigid plate limiting surface 23, and the bottom edge of the diaphragm limiting surface 21 and the top edge of the rigid plate limiting surface 23 are connected by the guide slope 22. In use, the diaphragm 3 is first placed at the position of the diaphragm limiting surface 21 and supported by the guide slope 22. Then, the rigid plate 4 is placed above the diaphragm limiting surface 21. By pressing, the rigid plate 4 presses the diaphragm 3 downward and embeds it into the position corresponding to the rigid plate limiting surface 23, so that the rigid plate limiting surface 23 accurately positions the rigid plate 4. During the downward pressing process, since the diaphragm 3 is larger than the rigid plate 4, the diaphragm 3 can form a flange through the guide slope 22, and the flange is made to fit against the side of the rigid plate 4 at the rigid plate limiting surface 23, thereby achieving a precise fit between the rigid plate 4 and the diaphragm 3.
[0033] In summary, by fixing a limiting protrusion 2 on the tooling body 1, this application avoids the problem of poor assembly accuracy caused by too many assembly parts, and improves the limiting accuracy of the limiting protrusion 2 for the diaphragm 3 and the rigid plate 4. At the same time, the diaphragm limiting surface 21 on the limiting protrusion 2 limits the diaphragm 3, and the rigid plate limiting surface 23 on the limiting protrusion 2 limits the rigid plate 4, so that the diaphragm 3 has high initial accuracy, and the rigid plate 4 also has high positioning accuracy during the bonding process between the rigid plate 4 and the diaphragm 3. This ensures that the diaphragm 3 and the rigid plate 4 maintain high bonding accuracy after bonding, thus guaranteeing production yield and efficiency. In addition, the guide slope 22 between the rigid plate limiting surface 23 and the diaphragm limiting surface 21 allows the flange of the diaphragm 3 to accurately contact and press against the side of the rigid plate 4, avoiding wrinkles, bending, etc. of the flange of the diaphragm 3, and ensuring accurate bonding between the flange of the diaphragm 3 and the side of the rigid plate 4.
[0034] It should be noted that the tooling of this application is applicable to the positioning and bonding of any diaphragm 3 to the four sides and back of the rigid plate 4, and is suitable for simple manual bonding applications. Furthermore, this application is particularly suitable for the positioning and bonding of light guide plates and reflective films. The following embodiments use the rigid plate 4 as the light guide plate and the diaphragm 3 as the reflective film. Other types of rigid plates 4 and diaphragms 3 can be referred to the light guide plate and reflective film, and will not be described in detail here.
[0035] In some embodiments, the bottom edge of the diaphragm limiting surface 21 and the top edge of the rigid plate limiting surface 23 are both parallel to the end face of the tooling body 1, thereby placing the diaphragm 3 at the position of the diaphragm limiting surface 21. The diaphragm 3 is supported by the intersection of the bottom edge of the diaphragm limiting surface 21 and the guide slope 22, keeping the diaphragm 3 parallel to the tooling body 1, thus achieving a stable and accurate initial position. Simultaneously, the top edge of the guide slope 22 and the rigid plate limiting surface 23 allows the diaphragm 3 to form a flange that adapts to the side of the rigid plate 4, ensuring the fitting accuracy of the flange.
[0036] When the diaphragm 3 is placed at the diaphragm limiting surface 21, it can be limited. As the rigid plate 4 and the diaphragm 3 are pressed downwards, when the rigid plate 4 enters the rigid plate limiting surface 23, the rigid plate limiting surface 23 can limit the rigid plate 4, thereby ensuring that the back and flange of the diaphragm 3 can be accurately fitted with the rigid plate 4. It should be noted that when the rigid plate 4 and the diaphragm 3 are pressed downwards, the rigid plate 4 and the diaphragm 3 should be kept parallel to the end faces of the tooling body 1 and move downwards to ensure fitting accuracy.
[0037] Please refer to Figure 1Since the limiting protrusions 2 are distributed around the rigid plate 4 or the diaphragm 3, the limiting protrusions 2 will form an enclosing quadrilateral limiting structure. The diaphragm limiting surface 21 and the rigid plate limiting surface 23 are at least set on the limiting protrusions 2 corresponding to one side of the quadrilateral limiting structure, thereby ensuring that the limiting protrusions 2 corresponding to one or more sides can make the diaphragm 3 form a flange and accurately fit with the side of the rigid plate 4.
[0038] Furthermore, to adapt to the process requirements of the light guide plate and the reflective film, a film limiting surface 21 and a rigid plate limiting surface 23 can be provided on the limiting protrusions 2 corresponding to the three sides of the quadrilateral limiting structure. Please refer to [reference needed]. Figure 1 and Figure 2 Specifically, the limiting protrusions 2 corresponding to the first, second, and third sides of the quadrilateral limiting structure are provided with diaphragm limiting surfaces 21 and rigid plate limiting surfaces 23. A gap equal to the thickness of the diaphragm 3 is reserved between the side of the rigid plate 4 and the rigid plate limiting surface 23, thereby ensuring that the flange of the diaphragm 3 can smoothly contact and adhere to the side of the rigid plate 4 at the position of the rigid plate limiting surface 23. Please refer to [reference needed] for details. Figure 6 and Figure 7 .
[0039] Since the three sides of the quadrilateral limiting structure are provided with diaphragm limiting surfaces 21 and rigid plate limiting surfaces 23, and a guide slope 22 is also provided, a stable supporting surface for the diaphragm 3 can be determined by the three sides, so that the diaphragm 3 can be stably and accurately placed inside the limiting protrusion 2 with a stable initial position. The limiting protrusion 2 corresponding to the fourth side of the quadrilateral limiting structure has a limiting plane 24 on its inner side that is perpendicular to the end face of the tooling body 1. The limiting plane 24 abuts against the side of the rigid plate 4 and the diaphragm 3, thereby cooperating with the diaphragm limiting surfaces 21 and rigid plate limiting surfaces 23 of the other three sides, so that the positioning accuracy of the diaphragm 3 and the rigid plate 4 is higher and the fit is more precise.
[0040] Furthermore, the limiting protrusion 2 corresponding to the fourth side of the quadrilateral limiting structure is intermittently arranged, that is, the limiting protrusion 2 with the limiting plane 24 is intermittently arranged; since the limiting plane 24 only needs to play a limiting role in the vertical direction, its length does not need to be too long, just enough to ensure the limiting effect. Therefore, considering the processing cost and material cost, this application can intermittently arrange the limiting protrusion 2 with the limiting plane 24, which also has a stable vertical limiting effect.
[0041] There are notches 11 around the main body of the tooling 1. Please refer to Figure 1 and Figure 4The notch 11 can extend inwards towards the main body 1 of the fixture and beyond the position of the limiting protrusion 2, allowing a finger to be inserted into the notch 11. A person can easily pick up the diaphragm 3 and place it into the fixture, and can also easily remove the assembled rigid plate 4 and diaphragm 3 after positioning and bonding. This operation is simple and can be easily completed by one person. Furthermore, the limiting protrusion 2 can be disconnected at the position of the notch 11, ensuring that the finger is not affected by the limiting protrusion 2 within the notch 11.
[0042] In some embodiments, the tooling body 1 is a cuboid slightly larger than the diaphragm 3 and the rigid plate 4, and the limiting protrusions 2 can be distributed along the outer edge of the rectangle of the tooling body 1; please refer to the following when using it. Figure 4 The rigid plate 4, diaphragm 3, and tooling are arranged sequentially from top to bottom. First, place the diaphragm 3 inside the limiting protrusion 2, with the adhesive backing of the diaphragm 3 facing upwards. The diaphragm 3 is limited by the diaphragm limiting surface 21 and supported by the junction of the bottom edge of the diaphragm limiting surface 21 and the top edge of the guide slope 22. Please refer to... Figure 5 At this point, the diaphragm 3 has a stable and precise initial position; based on this, the rigid plate 4 is placed on the upper surface of the diaphragm 3, and the rigid plate 4 and the diaphragm 3 are pressed downwards and pressed together. Under the action of the rigid plate limiting surface 23, the rigid plate 4 and the diaphragm 3 reach the desired position. Figure 6 and Figure 7 In this state, the diaphragm 3 and the rigid plate 4 reach the end face of the tooling body 1. The adhesive backing edge of the diaphragm 3 can contact and adhere to the side of the rigid plate 4, and the adhesive backing surface of the diaphragm 3 adheres to the lower surface of the rigid plate 4, thereby achieving precise adhesion.
[0043] The limiting protrusion 2 of this application can be integrally formed with the main body 1 of the tooling, resulting in a simple and stable overall structure, high fitting and positioning accuracy, and long-term stable and reliable use. Furthermore, the tooling has a streamlined number of parts, requiring only one machined part, leading to low manufacturing costs. It is made from common bakelite material, requires no secondary assembly, and can be used directly after processing, making it simple and easy to use, and highly efficient in production.
[0044] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0045] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.
Claims
1. An auxiliary bonding fixture for bonding rigid plates and films, characterized in that, The auxiliary fitting tool comprises a tool body (1) and a limiting protrusion (2) fixed on the end face of the tool body (1), the limiting protrusion (2) is distributed around the hard plate (4) and the diaphragm (3), the inner side of the limiting protrusion (2) is provided with a diaphragm limiting surface (21) and a hard plate limiting surface (23) perpendicular to the end face of the tool body (1), the hard plate limiting surface (23) is located below the diaphragm limiting surface (21), and the hard plate limiting surface (23) is arranged to protrude from the diaphragm limiting surface (21) towards the inner side of the limiting protrusion (2), the bottom edge of the diaphragm limiting surface (21) is higher than the top edge of the hard plate limiting surface (23), and the two are connected through a guide inclined surface (22).
2. The assistive fitting tool of claim 1, wherein, The bottom edge of the diaphragm limiting surface (21) and the top edge of the hard plate limiting surface (23) are parallel to the end face of the tool body (1), the diaphragm limiting surface (21) limits the diaphragm (3), and the hard plate limiting surface (23) limits the hard plate (4).
3. The assistive conforming tool of claim 1, wherein, The limiting protrusion (2) forms a quadrilateral limiting structure, and the diaphragm limiting surface (21) and the hard plate limiting surface (23) are arranged on the limiting protrusion (2) corresponding to one side of the quadrilateral limiting structure.
4. The assistive draping tool of claim 3, wherein, The diaphragm limiting surface (21) and the hard plate limiting surface (23) are arranged on the limiting protrusion (2) corresponding to the first side, the second side and the third side of the quadrilateral limiting structure, and a gap equal to the thickness of the diaphragm (3) is reserved between the side edge of the hard plate (4) and the hard plate limiting surface (23).
5. The assistive draping tool of claim 4, wherein, The inner side of the limiting protrusion (2) corresponding to the fourth side of the quadrilateral limiting structure is provided with a limiting plane (24) perpendicular to the end face of the tool body (1), and the limiting plane (24) abuts against the side edge of the hard plate (4) and the diaphragm (3).
6. The assistive fitting tool of claim 4, wherein, The limiting protrusion (2) corresponding to the fourth side of the quadrilateral limiting structure is arranged discontinuously.
7. The assistive conforming tool of claim 1, wherein, The tool body (1) is provided with a notch (11) around, the notch (11) extends inwardly and beyond the limiting protrusion (2).
8. The assistive fitting tool of claim 7, wherein, The limiting protrusion (2) is disconnected at the position of the notch (11), and the notch (11) can be used for inserting fingers.
9. The assistive conforming tool of any of claims 1-8, wherein, The tool body (1) is a cuboid, and the limiting protrusion (2) is distributed along the outer edge of the cuboid of the tool body (1).
10. The assistive fitting tool of claim 9, wherein, The limiting protrusion (2) is integrally formed with the tool body (1).