Auxiliary material laminating jig
By designing an auxiliary material bonding fixture, and using the main positioning module group and the auxiliary positioning module group to position the middle frame and the tape release film, the problem of high difficulty and low efficiency in bonding auxiliary materials of the automotive LCM backlight middle frame is solved, thereby improving bonding efficiency and yield.
Patent Information
- Application Number
- CN202520222582.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-12
Smart Images

Figure CN223870917U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic component processing technology, and more specifically, to an auxiliary material bonding fixture. Background Technology
[0002] During the manufacturing process of the backlight frame of an automotive LCM (LCD Module), adhesive needs to be applied to the edges and the middle cantilever area. The adhesive application area is a narrow and long area. Currently, this process mainly relies on manual operation. However, due to the size limitations of automotive LCMs, the required adhesive tape is a long strip with a narrow width, making it difficult and inefficient for manual application, resulting in a high scrap rate. Using automated equipment would be more costly.
[0003] Currently, there is a bonding fixture used in manual bonding operations, but its function is only to fix the middle frame and prevent it from shifting during the bonding process. However, due to the limitations of the tape width, there is still room for improvement in the accuracy of the bonding position and the bonding efficiency during manual bonding.
[0004] In summary, how to solve the problem of high difficulty and low efficiency in bonding auxiliary materials for automotive LCM backlight frames is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide an auxiliary material bonding fixture, which sets a main positioning module group and an auxiliary positioning module group to quickly position the middle frame and the tape release film carrying the auxiliary material, thereby achieving a more accurate relative positional relationship between the auxiliary material and the middle frame, thus improving the bonding efficiency and yield of the auxiliary material of the automotive LCM backlight middle frame.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A tooling fixture for bonding accessories on the mid-frame of an LCM backlight, comprising:
[0008] The base has protrusions on its surface to support the cantilever portion of the middle frame;
[0009] The main positioning module group includes several groups of positioning modules. The positioning modules are fixedly connected to the base and are used for contact positioning with the middle frame.
[0010] The auxiliary positioning module group includes several sets of auxiliary positioning modules. The auxiliary positioning modules are fixedly connected to the base and are used for contact positioning with the tape release film of the auxiliary material.
[0011] Preferably, the main positioning module includes a first main positioning module and a second main positioning module;
[0012] The contact points between the first main positioning module and the middle frame are distributed on different sides of the outer wall of the middle frame; the contact points between the second main positioning module and the middle frame are distributed on different sides of the inner wall of the middle frame.
[0013] Preferably, both the first main positioning module and the second main positioning module are positioning columns;
[0014] The base has a first mounting hole and a second mounting hole on its surface. The first mounting hole and the second mounting hole are used to install the first main positioning module and the second main positioning module, respectively.
[0015] Preferably, several sets of the auxiliary positioning modules are asymmetrically arranged on the surface of the base for foolproof installation of the tape release film.
[0016] Preferably, the auxiliary positioning module is a positioning column; the base surface is provided with a plurality of fourth mounting holes for mounting the auxiliary positioning module.
[0017] Preferably, the base surface is provided with several sets of foolproof modules for foolproof installation of the middle frame;
[0018] The height of the error prevention module is higher than the height of the boss, and the distance between different error prevention modules and the corresponding main positioning module is different.
[0019] Preferably, the foolproof module is a positioning post;
[0020] The base surface is provided with several sets of third mounting holes for installing the foolproof module.
[0021] Preferably, the end of the base is provided with an opening groove, which is located within the projection range of the middle frame on the surface of the base.
[0022] Preferably, the surface of the base is provided with directional indicator marks to guide the installation direction of the middle frame.
[0023] The auxiliary material bonding fixture provided by this utility model has at least the following advantages compared with the prior art:
[0024] 1. By setting a main positioning module and an auxiliary positioning module on the base, the middle frame and the release film with the auxiliary material are quickly positioned, so that the middle frame and the auxiliary material can quickly obtain an accurate relative position, thereby improving the efficiency of auxiliary material pasting and the yield rate.
[0025] 2. At the same time, a boss is set on the base to support the cantilever part of the middle frame. This allows the cantilever part to withstand greater downward pressure when the auxiliary material is pasted on, so that the auxiliary material can be firmly pasted on the surface of the cantilever part without causing deformation of the cantilever part, thereby improving the product yield.
[0026] 3. This bonding fixture makes full use of the die-cutting process of the auxiliary materials themselves, and can continuously bond two kinds of auxiliary materials through one positioning, optimizing the assembly process and improving efficiency. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the structure of the auxiliary material bonding fixture provided by this utility model;
[0029] Figure 2 A schematic diagram of the structure of the auxiliary material bonding fixture, the middle frame and the tape release film assembly provided by this utility model;
[0030] Figure 3 Exploded view of the parts of the auxiliary material bonding fixture, middle frame and tape release film assembly provided by this utility model;
[0031] Figure 4 A cross-sectional view of the auxiliary material bonding fixture, the middle frame, and the adhesive tape release film assembly provided by this utility model;
[0032] Figure 5 This is a schematic diagram of the structure of the base provided by this utility model;
[0033] Figure 6 This is a schematic diagram of the structure of the release film for the tape provided by this utility model.
[0034] Figures 1-6 middle:
[0035] 1. Base; 11. Boss; 12. First mounting hole; 13. Second mounting hole; 14. Third mounting hole; 15. Fourth mounting hole; 16. Opening slot; 17. Direction indicator mark;
[0036] 2. Main positioning module group; 21. First main positioning module; 22. Second main positioning module;
[0037] 3. Auxiliary positioning module group;
[0038] 4. Middle frame; 41. First adhesive application station; 42. Second adhesive application station;
[0039] 5. Adhesive tape release film; 51. First release film; 52. Second release film;
[0040] 6. Foolproof module. Detailed Implementation
[0041] 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.
[0042] The core of this utility model is to provide an auxiliary material bonding fixture. By setting a main positioning module group and an auxiliary positioning module group, the middle frame and the adhesive tape release film carrying the auxiliary material are quickly positioned respectively, so that the auxiliary material and the middle frame have a more accurate relative positional relationship, thereby improving the bonding efficiency and yield of the auxiliary material of the automotive LCM backlight middle frame.
[0043] Please refer to Figures 1-6 A tooling fixture for bonding auxiliary materials on the middle frame 4 of an LCM backlight, comprising:
[0044] The base 1 has a protrusion 11 on its surface to support the cantilever part of the middle frame 4;
[0045] The main positioning module group 2 includes several groups of positioning modules. The positioning modules are fixedly connected to the base 1 and are used for contact positioning with the middle frame 4.
[0046] The auxiliary positioning module group 3 includes several auxiliary positioning modules. The auxiliary positioning modules are fixedly connected to the base 1 and are used for contact positioning with the tape release film 5 of the auxiliary materials.
[0047] like Figure 1 As shown, a main positioning module group 2 is set on the base 1 to position the middle frame 4 of the LCM backlight, so that the middle frame 4 and the base 1 have a stable relative positional relationship; at the same time, an auxiliary positioning module group 3 is set on the base 1 to position the adhesive release film 5 with auxiliary materials, so that the adhesive release film 5 and the base 1 have a stable relative positional relationship, and thus the adhesive release film 5 and the middle frame 4 have a relatively stable relative positional relationship, so that the auxiliary materials such as VHB and PU foam on the adhesive release film 5 can be quickly attached to the corresponding positions of the middle frame 4.
[0048] Meanwhile, the auxiliary positioning module group 3 preferably adopts a cylindrical structure, using multiple sets of auxiliary positioning modules to simultaneously position the tape release film 5, and the same auxiliary positioning module can meet the positioning requirements of multiple sets of tape release films 5, that is, it can achieve single positioning of multiple sets of tape release films 5, such as... Figure 4 As shown, on the middle frame 4, a first release film 51 with VHB is arranged on the plane where the first adhesive application station 41 is located, and a second release film 52 with PU foam is arranged on the plane where the second adhesive application station 42 is located.
[0049] like Figure 3 As shown, when the first adhesive application station 41 and the second adhesive application station 42 are not on the same plane, the adhesive tape release film 5 at the positions of the first adhesive application station 41 and the second adhesive application station 42 can be assembled simultaneously, and then layer-by-layer pressing can be performed to ensure that the VHB or PU foam can be firmly bonded to the middle frame 4.
[0050] At the same time, such as Figure 1 and Figure 4 As shown, the inner side of the middle frame 4 extends inward to form a cantilever section, and the second adhesive application station 42 is located above the cantilever section. When the auxiliary material is pressed, the cantilever section also bears pressure. However, due to the relatively soft material of the middle frame 4, there is a risk of deformation. Therefore, a boss 11 is provided on the base 1 to support the cantilever section, thereby avoiding deformation of the cantilever section under pressure. The boss 11 is a frame structure and supports the cantilever section at all positions inside the middle frame 4.
[0051] In some embodiments, the main positioning module includes a first main positioning module 21 and a second main positioning module 22;
[0052] The contact points between the first main positioning module 21 and the middle frame 4 are distributed on different sides of the outer wall of the middle frame 4; the contact points between the second main positioning module 22 and the middle frame 4 are distributed on different sides of the inner wall of the middle frame 4.
[0053] like Figure 1 and Figure 4 As shown, the middle frame 4 is a square frame. The main positioning module includes a first main positioning module 21 for abutting the outer side of the middle frame 4 and a second main positioning module 22 for abutting the inner side of the middle frame 4. The first main positioning module 21 and the second main positioning module 22 are distributed around the four sides of the middle frame 4, abutting the outer and inner sides of the middle frame 4 from multiple directions, thereby fully positioning the middle frame 4, while avoiding the problem of inaccurate positioning caused by deformation during the positioning process due to the softness of the middle frame 4 itself.
[0054] In some embodiments, both the first main positioning module 21 and the second main positioning module 22 are positioning posts;
[0055] The surface of the base 1 is provided with a first mounting hole 12 and a second mounting hole 13, which are used to install the first main positioning module 21 and the second main positioning module 22, respectively.
[0056] like Figure 5 and Figure 1 As shown, both the first main positioning module 21 and the second main positioning module 22 use standard positioning post parts, which have high machining accuracy. The positioning post uses its outer peripheral surface as the positioning reference surface and abuts against the outer and inner surfaces of the middle frame 4 for positioning, which has high positioning accuracy. Using standard parts as positioning modules helps to reduce machining costs.
[0057] The base 1 has several sets of mounting holes on its surface for the installation of the main positioning module. The main positioning module is designed with standard parts, which facilitates the replacement and maintenance of the main positioning module in the future.
[0058] In some embodiments, several sets of auxiliary positioning modules are asymmetrically arranged on the surface of the base 1 for the foolproof installation of the tape release film 5.
[0059] like Figure 1 and Figure 2 As shown, the base 1 has several sets of auxiliary positioning modules on its surface to position the tape release film 5. However, the auxiliary positioning modules are arranged asymmetrically on the surface of the base 1, meaning that the tape release film 5 must have the correct installation angle with the base 1 to be positioned and installed, thus preventing mistaken installation.
[0060] In some embodiments, the auxiliary positioning module is a positioning column; the surface of the base 1 is provided with a plurality of fourth mounting holes 15 for mounting the auxiliary positioning module.
[0061] like Figure 1 and Figure 5 As shown, the auxiliary positioning module also uses standard positioning columns and is installed by assembling with mounting holes on the surface of the base 1, thereby reducing usage costs and improving the convenience of later maintenance.
[0062] In some embodiments, the surface of the base 1 is provided with a plurality of anti-foolproof modules 6 for anti-foolproof installation of the middle frame 4;
[0063] The height of the foolproof module 6 is higher than the height of the boss 11, and the distance between different foolproof modules 6 and the corresponding main positioning module is different.
[0064] By setting a foolproof module 6 on the base 1 and making its height higher than the boss 11, when the middle frame 4 is not installed at the set angle, the cantilever part of the middle frame 4 will abut against the top of the foolproof module 6, but not against the boss 11, causing the middle frame 4 to be installed unevenly, indicating that the middle frame 4 is not installed in place. At this time, the operator can clearly perceive the situation and change the installation direction of the middle frame 4, thus playing a foolproof role.
[0065] In actual use, the width of the cantilever section corresponding to different sides inside the middle frame 4 is different. Therefore, when setting the foolproof module 6, the distance between its setting position and the corresponding main positioning module is not equal, thus achieving the foolproof effect.
[0066] In some embodiments, the foolproof module 6 is a positioning post;
[0067] The base 1 has several sets of third mounting holes 14 on its surface for installing the foolproof module 6.
[0068] like Figure 1 and Figure 5 As shown, the foolproof module 6 also uses standard positioning posts and is installed by assembling with mounting holes on the surface of the base 1, thereby reducing usage costs and improving the convenience of later maintenance.
[0069] In some embodiments, the end of the base 1 is provided with an opening groove 16, which is located within the projection range of the middle frame 4 on the surface of the base 1.
[0070] like Figure 2 and Figure 5 As shown, an opening slot 16 is provided at the end of the base 1, allowing the operator to pass their fingers through the opening slot 16 to pick up the middle frame 4, thereby improving the convenience of use.
[0071] In some embodiments, the surface of the base 1 is provided with a direction indicator mark 17 to guide the installation direction of the middle frame 4.
[0072] like Figure 5 As shown, directional indicator marks 17, such as “UP”, “FPC” or “↓”, are set on both sides of the upper surface of the base 1 to indicate the installation direction of the middle frame 4, prompting the operator to install it in the correct direction, thereby improving the processing efficiency of the middle frame 4.
[0073] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0074] The auxiliary material bonding fixture provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A tooling fixture for bonding auxiliary materials on the middle frame (4) of an LCM backlight, characterized in that, include: The base (1) has a boss (11) on its surface for supporting the cantilever portion of the middle frame (4); The main positioning module group (2) includes several positioning modules. The positioning modules are fixedly connected to the base (1) and are used to contact and position with the middle frame (4). The auxiliary positioning module group (3) includes several auxiliary positioning modules. The auxiliary positioning modules are fixedly connected to the base (1) and are used to contact and position the tape release film (5) of the auxiliary material.
2. The auxiliary material bonding fixture according to claim 1, characterized in that, The main positioning module includes a first main positioning module (21) and a second main positioning module (22); The contact points between the first main positioning module (21) and the middle frame (4) are distributed on different sides of the outer wall of the middle frame (4); the contact points between the second main positioning module (22) and the middle frame (4) are distributed on different sides of the inner wall of the middle frame (4).
3. The auxiliary material bonding fixture according to claim 2, characterized in that, Both the first main positioning module (21) and the second main positioning module (22) are positioning columns; The base (1) has a first mounting hole (12) and a second mounting hole (13) on its surface. The first mounting hole (12) and the second mounting hole (13) are used to install the first main positioning module (21) and the second main positioning module (22), respectively.
4. The auxiliary material bonding fixture according to claim 1, characterized in that, Several sets of the auxiliary positioning modules are asymmetrically arranged on the surface of the base (1) for the foolproof installation of the tape release film (5).
5. The auxiliary material bonding fixture according to claim 4, characterized in that, The auxiliary positioning module is a positioning column; the base (1) has several sets of fourth mounting holes (15) on its surface for installing the auxiliary positioning module.
6. The auxiliary material bonding fixture according to claim 1, characterized in that, The base (1) surface is provided with several sets of anti-foolproof modules (6) for the anti-foolproof installation of the middle frame (4); The height of the anti-foolproof module (6) is higher than the height of the boss (11), and the distance between different anti-foolproof modules (6) and the corresponding main positioning module is different.
7. The auxiliary material bonding fixture according to claim 6, characterized in that, The foolproof module (6) is a positioning post; The base (1) has several sets of third mounting holes (14) on its surface for mounting the foolproof module (6).
8. The auxiliary material bonding fixture according to claim 1, characterized in that, The base (1) has an opening groove (16) at its end, and the opening groove (16) is located within the projection range of the middle frame (4) on the surface of the base (1).
9. The auxiliary material bonding fixture according to any one of claims 1-8, characterized in that, The surface of the base (1) is provided with a direction indicator mark (17) to guide the installation direction of the middle frame (4).