Metal dome fitting jig

Abstract

The utility model relates to the technical field of metal dome installation, in particular to a metal dome fitting jig which comprises a bottom plate, a positioning piece arranged on the bottom plate and a bonding layer arranged between the positioning piece and the bottom plate, and a positioning column is arranged on the positioning piece and used for positioning an FPC (flexible printed circuit) board. The positioning piece is installed on the bottom plate through the bonding layer, the positioning holes in the FPC board are aligned with the positioning columns on the positioning piece, the FPC board is inserted into the positioning piece to fix the FPC board, and then the strip-pasting metal domes are aligned and pasted in the metal dome pasting positions, so that the pasting difficulty of a single metal dome is reduced, the improvement of the pasting yield of the metal domes is facilitated, and the production efficiency of the metal domes is improved. The fitting efficiency of the metal domes is improved; according to the metal dome fitting jig, the metal dome fitting jig is composed of the bottom plate, the bonding layer and the positioning piece, the positioning piece is installed on the bottom plate through the bonding layer so that the jig can be assembled, the structure is simple, and the manufacturing cost of the metal dome fitting jig is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dome sheet installation, in particular to a dome sheet fitting jig. Background Art

[0002] In the process of PCB chip mounting, there is a step of fitting dome sheets on the PCB board, and the dome sheets are accurately mounted on the PCB board to achieve electrical connection between electronic components. A dome sheet is a metal spring sheet made of metal material, which usually needs to be fixedly installed on a PCB board or an FPC board. In actual operation, usually, an operator fits single dome sheets on the PCB board or the FPC board one by one. This method has low fitting efficiency, and the dome sheets are prone to being misaligned, and the fitting accuracy of the dome sheets is low, resulting in a high unqualified rate in the later sealing test.

[0003] In order to improve the fitting efficiency and fitting accuracy of dome sheets, there are currently some jigs for assisting in dome sheet mounting. However, the existing jigs have complex structures, high manufacturing costs, and can only position specific components, with a narrow scope of application. In addition, in the actual research and development of new products, the number of dome sheets mounted in the sealing test stage is small, and there is also a risk of modification in the later stage. Once modified, the jig also needs to be scrapped at the same time, resulting in a very high usage cost of the jig.

[0004] Therefore, it is necessary to research and develop a simple dome sheet fitting jig that is convenient for dome sheet mounting and has a low usage cost.

[0005] The utility model is specifically researched and proposed in view of the deficiencies of the existing technology. Summary of the Utility Model

[0006] In view of the above-mentioned technical problems such as high manufacturing cost of the existing dome sheet fitting jig, the utility model provides a dome sheet fitting jig.

[0007] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0008] A dome sheet fitting jig includes a bottom plate, a positioning member disposed on the bottom plate, and an adhesive layer disposed between the positioning member and the bottom plate. The positioning member is provided with positioning posts for positioning an FPC board.

[0009] For a dome sheet fitting jig as described above, the positioning member is detachably connected to the adhesive layer.

[0010] For a dome sheet fitting jig as described above, the adhesive layer is detachably connected to the bottom plate.

[0011] For a dome sheet fitting jig as described above, the positioning posts extend upward along the top surface of the positioning member.

[0012] A dome sheet laminating jig as described above, wherein the positioning member at least includes a first side and a second side connected to each other, and the positioning post is disposed between the first side and the second side.

[0013] A dome sheet laminating jig as described above, wherein the first side and the second side are connected by an arc connecting section.

[0014] A dome sheet laminating jig as described above, wherein the positioning post and the positioning member are of an integrally formed structure.

[0015] A dome sheet laminating jig as described above, wherein the adhesive layer is a double-sided adhesive layer.

[0016] A dome sheet laminating jig as described above, wherein the bottom plate is provided as an insulating plate or an FR-backing plate.

[0017] A dome sheet laminating jig as described above, wherein a plurality of positioning members are provided, the positions of the positioning members respectively correspond to the positioning holes on the FPC board, each positioning member is connected with a corresponding adhesive layer, and the area of the adhesive layer is less than or equal to the area of the corresponding positioning member; at least a first positioning member group and a second positioning member group are provided on the bottom plate, the first positioning member group and the second positioning member group are arranged at intervals on the bottom plate, and both the first positioning member group and the second positioning member group include at least one positioning member.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. The dome sheet laminating jig includes a bottom plate, an adhesive layer and a positioning member. The positioning member can be installed on the bottom plate through the adhesive layer to complete the assembly of the jig, with a simple structure, greatly reducing the manufacturing cost of the dome sheet laminating jig;

[0020] 2. The positioning member is installed on the bottom plate through the adhesive layer. Align the positioning holes on the FPC board with the positioning posts on the positioning member, insert the FPC board on the positioning member to fix the FPC board, and then align and laminate the strip-mounted dome sheet in the above-mentioned dome sheet laminating position, reducing the difficulty of single-strip dome sheet mounting, being beneficial to improving the yield rate of dome sheet mounting, and improving the laminating efficiency of the dome sheet.

[0021] The following will further illustrate the present utility model in conjunction with the drawings and specific embodiments. Description of the Drawings

[0022] Figure 1 is a three-dimensional schematic diagram of the dome sheet laminating jig of the present utility model;

[0023] Figure 2 is Figure 1 the enlarged view of part A in

[0024] Figure 3 For Figure 1 the sectional view taken along line B-B in

[0025] Figure 4 FIG. 7 is a schematic view of one embodiment of the first positioning member group and the second positioning member group of the present utility model. Detailed implementation manners

[0026] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0027] Embodiment 1:

[0028] As Figure 1 shown in FIG. 6-3, the present utility model provides a dome sheet laminating jig, which includes a bottom plate 110, a positioning member 120 disposed on the bottom plate 110, and an adhesive layer 140 disposed between the positioning member 120 and the bottom plate 110. A positioning post 130 is provided on the positioning member 120, and the positioning post 130 is used for positioning the FPC board. In this embodiment, the FPC board is provided with a dome sheet laminating position and positioning holes located on one side of the dome sheet laminating position. There are a plurality of dome sheet laminating positions, and each of the dome sheet laminating positions is arranged at equal intervals in the FPC board. A positioning hole is correspondingly provided on one side of each dome sheet laminating position, and the positioning post 130 is adapted to the positioning hole on the FPC board. The positioning member 120 is installed on the bottom plate 110 through the adhesive layer 140. The positioning hole on the FPC board is aligned with the positioning post 130 on the positioning member 120, and the FPC board is inserted into the positioning member 120 to fix the FPC board. Then, the strip-mounted dome sheet is aligned and laminated in the above-mentioned dome sheet laminating position, which reduces the difficulty of single-strip dome sheet mounting, is beneficial to improving the yield rate of dome sheet mounting, and improves the laminating efficiency of the dome sheet. The dome sheet laminating jig is composed of a bottom plate 110, an adhesive layer 140, and a positioning member 120. The positioning member 120 can be installed on the bottom plate 110 through the adhesive layer 140 to complete the assembly of the jig. The structure is simple, and the manufacturing cost of the dome sheet laminating jig is greatly reduced.

[0029] In some embodiments, the positioning member 120 is detachably connected to the adhesive layer 140; in some embodiments, the adhesive layer 140 is detachably connected to the bottom plate 110; so that the positioning member 120 is detachably connected to the bottom plate 110 through the adhesive layer 140. Since a plurality of dome sheet fitting positions are provided on the FPC board, by detachably connecting the positioning member 120 to the bottom plate 110, the installation position of the positioning member 120 on the bottom plate 110 can be flexibly set according to the positioning holes of the FPC board during actual operation, so as to adjust the position of the positioning post 130 so that the positioning post 130 can be aligned with the positioning holes on the FPC board, enabling the jig to adapt to various FPC boards that need to install dome sheets. In addition, the detachable connection of the positioning member 120 enables it to be reused, which is beneficial to reducing the consumable cost of the jig and further reducing the manufacturing cost.

[0030] In some embodiments, the positioning post 130 extends upward along the top surface of the positioning member 120, so that the FPC board can be inserted onto the positioning member 120 through the positioning holes.

[0031] In some embodiments, the positioning member 120 at least includes a connected first side 121 and a second side 122, and the positioning post 130 is disposed between the first side 121 and the second side 122. In this embodiment, the positioning member 120 can be set to have various plate-like structures including but not limited to circular, rectangular, etc. For example, the outer shape of the positioning member 120 is set to be rectangular, and the positioning post 130 is disposed at any one end corner of the rectangular positioning member 120. By disposing the positioning post 130 close to the side of the positioning member 120, it is convenient for the FPC board to be inserted onto the positioning member 120 through the positioning holes, and the overlapping area between the FPC board and the positioning member 120 can also be reduced, thereby reducing the influence of the positioning member 120 on the flatness of the FPC board, which is beneficial to improving the mounting accuracy of the dome sheet; moreover, when using a plurality of positioning members 120, it is beneficial to avoid interference between the positioning members 120 and affecting the mounting of the dome sheet.

[0032] Further, the first side 121 and the second side 122 are connected by an arc connection section 123. For example, the sides of the above-mentioned rectangular positioning member 120 are connected by the arc connection section 123, reducing the sharpness of the outer edge of the positioning member 120, so as to avoid the FPC board being scratched by the positioning member 120 and causing damage to the FPC board, and it can also reduce the safety hazard during the mounting process of the dome sheet and avoid the operator from being scratched.

[0033] Preferably, the positioning post 130 and the positioning member 120 are integrally formed structures to simplify the production process and assembly process of the positioning member 120, thereby improving the production efficiency and assembly efficiency of the positioning member 120. Optionally, the positioning post 130 can be connected to the positioning member 120 by welding. Optionally, the positioning member 120 and the positioning post 130 are made of the same material, such as made of one of the metal materials such as stainless steel, copper alloy, nickel alloy, titanium alloy, etc. Making the positioning member 120 with a metal material can make the positioning member 120 conductive, so as to facilitate the electrical connection between the dome sheet and the FPC board.

[0034] In some embodiments, the adhesive layer 140 is a double-sided adhesive layer. The double-sided adhesive is easy to obtain and has a low cost. Moreover, the double-sided adhesive layer has reversibility and low viscosity. On the basis of satisfying the fixed connection between the positioning member 120 and the bottom plate 110, the double-sided adhesive can be easily separated from both the positioning member 120 and the bottom plate 110. The operator can easily remove the positioning member 120 from the bottom plate 110, and the double-sided adhesive layer will not leave a large amount of residues on the positioning member 120 and the bottom plate 110, which is beneficial to the reuse of the bottom plate 110 and the positioning member 120.

[0035] In some embodiments, the bottom plate 110 is provided as an insulating plate or an FR-4 backing plate. Preferably, the bottom plate 110 is provided as an FR-4 backing plate. The FR-4 backing plate can be understood as an insulating board that meets the FR-4 flame-resistant material grade, including but not limited to epoxy glass cloth laminate, epoxy resin board, epoxy board, etc., so that the bottom plate 110 has stable insulation and flame resistance to reduce the safety hazards during the dome sheet mounting process and improve the mounting quality of the dome sheet.

[0036] Embodiment Two:

[0037] As Figure 4As shown, a plurality of positioning members 120 are provided, and the positions of the positioning members 120 respectively correspond to the positioning holes on the FPC board. Each of the positioning members 120 is connected with a corresponding adhesive layer 140; at least a first positioning member group 200 and a second positioning member group 300 are provided on the bottom plate 110. The first positioning member group 200 and the second positioning member group 300 are arranged at intervals on the bottom plate 110, and both the first positioning member group 200 and the second positioning member group 300 include at least one positioning member 120. In this embodiment, a plurality of positioning holes are provided in the FPC board. By providing a plurality of the positioning members 120, the installation positions of the positioning members 120 can be set according to the positioning holes on the FPC board, so as to enhance the flexibility of the jig for fixing the FPC board. Moreover, providing a plurality of positioning members 120 can fix the FPC board at multiple points, thereby improving the fixing stability of the FPC board, and the FPC board is not likely to shift, which is beneficial to the mounting of the dome sheet. In addition, when there are multiple positioning members 120, the adhesive layer 140 is correspondingly arranged with each of the positioning members 120; optionally, the area of the adhesive layer 140 is less than or equal to the area of the positioning member 120, so as to prevent the adhesive layer 140 from exceeding the range of the positioning member 120, thereby preventing the FPC board from sticking to the adhesive layer 140.

[0038] In this embodiment, the positioning member 120 has multiple setting methods on the bottom plate 110, and the positioning members 120 can be combined to form multiple positioning member groups. For example, the first positioning member group 200 and the second positioning member group 300 are arranged and distributed corresponding to the FPC board in the horizontal or vertical direction, or the first positioning member group 200 and the second positioning member group 300 are arranged and distributed corresponding to the FPC board in the oblique direction, etc.; wherein, the first positioning member group 200 includes at least one first positioning member 120a, the first positioning member 120a corresponds to the first positioning hole on the FPC board, the second positioning member group 300 includes at least one second positioning member 120b, and the second positioning member 120b corresponds to the second positioning hole on the FPC board. During the mounting process of the dome sheet, the bottom plate 110 is fixed on the operating table with a double-sided adhesive layer, the first positioning member 120a is fixed on the bottom plate 110 through the adhesive layer 140, then the first positioning hole in the FPC board is sleeved on the first positioning member 120a, the position of the FPC board is first positioned through the first positioning member 120a, and then the position of the second positioning member 120b is determined through the second positioning hole in the FPC board. Subsequently, the second positioning member 120b is fixed on the bottom plate 110 by using the adhesive layer 140, so as to fix the FPC board, which is beneficial for the operator to mount the strip-mounted dome sheet on the dome sheet fitting position in the FPC board. It should be noted that the above is an example of the setting method of multiple positioning members 120 on the bottom plate 110. This embodiment does not limit the number of uses and specific setting methods of each positioning member 120. The operator can flexibly set the positioning members 120 according to the actual specifications and mounting requirements of the FPC board.

[0039] The above further illustrates the technical content of the present invention only by way of examples for the convenience of readers to understand more easily, but it does not mean that the implementation manners of the present invention are limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A dome sheet laminating jig, characterized in that It includes a bottom plate (110), a positioning member (120) provided on the bottom plate (110), and an adhesive layer (140) provided between the positioning member (120) and the bottom plate (110). A positioning post (130) is provided on the positioning member (120), and the positioning post (130) is used to position the FPC board.

2. The pot piece fitting jig according to claim 1, wherein, The positioning member (120) is detachably connected to the adhesive layer (140).

3. The pot piece fitting jig according to claim 1, characterized in that, The adhesive layer (140) is detachably connected to the bottom plate (110).

4. The pot piece fitting jig according to claim 1, characterized in that, The positioning post (130) extends upward along the top surface of the positioning member (120).

5. The pot piece fitting jig according to claim 1, characterized in that The positioning member (120) at least includes a connected first side (121) and a second side (122), and the positioning post (130) is provided between the first side (121) and the second side (122).

6. The pot piece fitting jig according to claim 5, characterized in that, The first side (121) and the second side (122) are connected by an arc connecting section (123).

7. The pot piece fitting jig according to claim 1, characterized in that, The positioning post (130) and the positioning member (120) are of an integrally formed structure.

8. The pot piece fitting jig according to claim 1, characterized in that, The adhesive layer (140) is a double-sided adhesive layer.

9. The pot piece fitting jig according to claim 1, characterized in that, The bottom plate (110) is provided as an insulating board or an FR-4 backing plate.

10. A pot chip bonding fixture according to any one of claims 1-9, characterized in that, A plurality of the positioning members (120) are provided, and the positions of each positioning member (120) respectively correspond to the positioning holes on the FPC board. Each positioning member (120) is connected with a corresponding adhesive layer (140), and the area of the adhesive layer (140) is less than or equal to the area of the corresponding positioning member (120); At least a first positioning member group (200) and a second positioning member group (300) are provided on the bottom plate (110). The first positioning member group (200) and the second positioning member group (300) are arranged at intervals on the bottom plate (110), and both the first positioning member group (200) and the second positioning member group (300) include at least one positioning member (120).

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