Jig for preventing false soldering of FPC (Flexible Printed Circuit) device

Abstract

The utility model relates to the technical field of massagers, in particular to a jig for preventing false soldering of an FPC device, which comprises a jig base, a magnetic bottom plate and a magnetic cover plate, the magnetic bottom plate is connected to the jig base, the magnetic bottom plate is provided with an FPC board mounting area, a magnet mounting position for mounting a magnet is arranged in the FPC board mounting area, an FPC board is connected to the FPC board mounting area, and the magnetic cover plate is connected to the FPC board mounting area. And the magnetic cover plate is magnetically connected with the magnetic bottom plate and clamps the FPC board in the FPC board mounting area. According to the scheme, the structural design of the double magnetic plates is adopted, and the effects of improving the flatness in the FPC board production process, reducing the pseudo soldering risk of the device, improving the mounting precision and the welding quality and improving the production efficiency are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of FPC fixtures, and particularly relates to a fixture for preventing false soldering of FPC devices. Background Art

[0002] In traditional SMT production, for some types of flexible printed circuit boards (such as FPCs), some problems may occur during surface mounting. Especially when there is no steel sheet or FR4 (a glass fiber-reinforced epoxy composite material) used for reinforcement on the back of the device pads, only using double-sided tape to fix both sides of the flexible printed circuit board may cause the middle pads to warp due to the flexibility of the FPC, thus affecting the mounting accuracy and welding quality. Therefore, the utility model proposes a new solution for the above technical problems. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a fixture for preventing false soldering of FPC devices. By adopting the structural design of double magnetic plates, it achieves the effects of improving the flatness during the production process of the FPC board, reducing the risk of false soldering of devices, improving the mounting accuracy and welding quality, and enhancing the production efficiency.

[0004] Based on this, the utility model provides a fixture for preventing false soldering of FPC devices, including:

[0005] Fixture base;

[0006] Magnetic bottom plate, the magnetic bottom plate is connected to the fixture base, the magnetic bottom plate is provided with an FPC board installation area, and the FPC board installation area is provided with magnet installation positions for installing magnets;

[0007] Magnetic cover plate, the FPC board is connected to the FPC board installation area, the magnetic cover plate is magnetically connected to the magnetic bottom plate and clamps the FPC board in the FPC board installation area.

[0008] For the fixture for preventing false soldering of FPC devices as described above, the magnetic bottom plate is further provided with bottom plate positioning pin holes and bottom plate heat dissipation holes. The bottom plate positioning pin holes are arranged outside the FPC board installation area, and the magnetic bottom plate is fixedly connected to the fixture base through the bottom plate positioning pin holes.

[0009] For the fixture for preventing false soldering of FPC devices as described above, the magnet installation positions are embedded installation positions, and the magnet installation positions are equidistantly arranged in the FPC board installation area.

[0010] For the fixture for preventing false soldering of FPC devices as described above, the thickness range of the magnetic bottom plate is 1.5 - 5 mm.

[0011] A fixture for preventing false soldering of FPC devices as described above, wherein the magnetic cover plate is provided with a soldering working position and cover plate positioning pin holes. The FPC board is soldered through the soldering working position, and the cover plate positioning pin holes are in one-to-one correspondence and mating installation with the bottom plate positioning pin holes.

[0012] A fixture for preventing false soldering of FPC devices as described above, wherein the magnetic cover plate is made of magnetic material and can be closely attached to the magnetic bottom plate.

[0013] A fixture for preventing false soldering of FPC devices as described above, wherein the thickness range of the magnetic cover plate is 0.02 - 2 mm.

[0014] A fixture for preventing false soldering of FPC devices as described above, wherein the periphery of the fixture base is provided with installation positioning pins, sliding grooves, and sliding connection blocks. The magnetic bottom plate and the fixture base are fixedly connected through the bottom plate positioning pin holes and the installation positioning pins. The magnetic cover plate is positioned by snapping into the installation positioning pins through the cover plate positioning pin holes and tightly attaches the FPC board to the magnetic bottom plate. The sliding connection blocks are slidably connected in the sliding grooves for the positioning of the chip mounter.

[0015] A fixture for preventing false soldering of FPC devices as described above, wherein the sliding connection block is provided with a sliding connection block body, SMT positioning pins, and a locking position. The SMT positioning pins are fixedly connected to the sliding connection block body for the positioning of the chip mounter, and a quick locking device is provided on the locking position, and the quick locking device can perform sliding limit on the sliding connection block.

[0016] A fixture for preventing false soldering of FPC devices as described above, wherein the sliding grooves are symmetrically arranged on the same side of the fixture base.

[0017] Implementing the embodiments of the present invention has the following beneficial effects:

[0018] 1. This solution adopts a structural design of double magnetic plates. An FPC board installation area is provided on the magnetic bottom plate, and magnets are installed in the FPC board installation area. The FPC board is installed in the FPC board installation area, and then the magnetic cover plate is covered on the FPC board. Through the magnetic connection between the magnetic bottom plate and the magnetic cover plate, the FPC board can be tightly clamped between the two plates, achieving the effects of improving the flatness during the production process of the FPC board, reducing the risk of false soldering of devices, improving the mounting accuracy and welding quality, and enhancing the production efficiency. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the fixture base;

[0022] Figure 3 corresponding to Figure 2 is the A-A cross-sectional view;

[0023] Figure 4 is a schematic structural diagram of the magnetic base plate;

[0024] Figure 5 corresponding to Figure 4 is a schematic structural diagram in another direction;

[0025] Figure 6 is a schematic structural diagram of the magnetic cover plate.

[0026] In the figure: 1-fixture base, 11-mounting and positioning pins, 12-sliding groove, 13-sliding connection block, 131-sliding connection block body, 132-SMT positioning pins, 133-locking position; 2-magnetic base plate, 21-base plate positioning pin holes, 22-base plate heat dissipation holes, 23-FPC board installation area, 231-magnet installation position; 3-magnetic cover plate, 31-welding work position with clearance, 32-cover plate positioning pin holes; 4-FPC board. Specific embodiments

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0028] As Figures 1 to 6 shown, the embodiments of the present utility model provide a fixture for preventing false soldering of FPC devices, including:

[0029] Fixture base 1; magnetic bottom plate 2, the magnetic bottom plate 2 is connected to the fixture base 1, the magnetic bottom plate 2 is provided with an FPC board installation area 23, and a magnet installation position 231 for installing a magnet is provided in the FPC board installation area 23; magnetic cover plate 3, the FPC board 4 is connected to the FPC board installation area 23, and the magnetic cover plate 3 is magnetically connected to the magnetic bottom plate 2 and clamps the FPC board 4 in the FPC board installation area 23.

[0030] Specifically, the magnetic bottom plate 2 is further provided with a bottom plate positioning pin hole 21, a bottom plate heat dissipation hole 22, and a bottom plate convenient end. The bottom plate positioning pin hole 21 is arranged outside the FPC board installation area 23, preferably around the magnetic bottom plate 2, so as to be fixedly connected to the fixture base 1 through the bottom plate positioning pin hole 21 and provide a more stable installation; the bottom plate heat dissipation holes 22 are equidistantly distributed in the FPC board installation area 23 for enhancing the heat dissipation effect and ensuring that the heat of the FPC board 4 is dissipated in time during use; at the same time, the surface of the magnetic bottom plate 2 is coated with a high-temperature resistant material to prevent adverse effects on the FPC board 4 in a high-temperature environment, thereby protecting the performance of the FPC board 4 and extending the service life of the FPC board 4; the bottom plate convenient end facilitates the quick installation or removal of the magnetic bottom plate 2 to improve production efficiency.

[0031] Furthermore, the magnet installation position 231 is an embedded installation position. The magnetic bottom plate 2 has a bottom plate front and a bottom plate back. The bottom plate front is used to install the FPC board 4, and the bottom plate back abuts against the fixture base 1; the magnet installation positions 231 are equidistantly arranged in the bottom plate back of the FPC board installation area 23, and the depth and size of the magnet installation position 231 match the thickness and size of the magnet to ensure that the magnet is tightly embedded and not easily detached; the magnet installation position 231 can also be provided with a quick release mechanism, and the quick release mechanism allows the magnet to be conveniently and quickly taken out when replacement is needed, improving the maintenance efficiency; and the surface of the magnet installation position 231 is coated with an anti-corrosion layer to protect the magnet from environmental factors (such as moisture, salt spray, etc.), extending the service life of the magnet, or a sealing ring is arranged between the magnet installation position 231 and the magnet. The sealing ring can prevent dust and sundries from entering the installation position, and at the same time further reinforce the magnet to keep the magnet installation position 231 and the magnet clean and maintain the stability of the magnet during operation.

[0032] Furthermore, the magnet mounting position 231 is an embedded mounting position, and the magnet mounting positions 231 are equidistantly arranged within the FPC board mounting area 23. The thickness range of the magnetic base plate 2 is 1.5 - 5 mm to ensure structural strength and stability; preferably, the magnetic base plate 2 of the present utility model is an aluminum plate with a thickness of 2 mm, so as to facilitate reducing the weight by reducing the thickness while ensuring the structural strength to ensure the convenience of operation.

[0033] Further, the magnetic cover plate 3 is provided with a welding work relief position 31, cover plate positioning pin holes 32, and a cover plate convenient end. The FPC board 4 is welded through the welding work relief position 31, and the cover plate positioning pin holes 32 and the base plate positioning pin holes 21 are in one-to-one correspondence and fit for installation, so as to facilitate the magnetic cover plate 3 and the magnetic base plate 2 to be fixedly connected to the fixture base 1 in cooperation, enhancing the structural stability; the cover plate convenient end facilitates the quick installation or removal of the magnetic cover plate 3, so as to improve the production efficiency.

[0034] Still further, the magnetic cover plate 3 is made of a magnetic material and can be closely attached to the magnetic base plate 2, and the magnetic strength of the magnetic cover plate 3 is optimized to ensure that sufficient fixing force is provided during close attachment, effectively preventing the FPC board 4 from warping, and at the same time not affecting the normal operation of the FPC board 4, so as to improve the mounting accuracy and welding quality.

[0035] Even closer, the thickness range of the magnetic cover plate 3 is 0.02 - 2 mm, and its material is selected as a high-strength magnetic alloy to provide sufficient structural strength and magnetic adsorption force within the thickness range, and not increase too much weight while ensuring sufficient magnetic adsorption force, thereby ensuring the convenience of operation; preferably, the thickness of the magnetic cover plate 3 of the present utility model is optimized to be 0.06 mm to ensure that the magnetic cover plate 3 maintains the best performance under different usage environments.

[0036] Further, the fixture base 1 is provided with mounting positioning pins 11, sliding grooves 12, and sliding connection blocks 13 around its perimeter. The magnetic base plate 2 and the fixture base 1 are fixedly connected through the base plate positioning pin holes 21 and the mounting positioning pins 11, and the magnetic cover plate 3 is positioned by snapping the cover plate positioning pin holes 32 onto the mounting positioning pins 11 and tightly attaching the FPC board 4 to the magnetic base plate 2; the sliding connection blocks 13 are slidably connected in the sliding grooves 12, and sliding guide rails are provided in the sliding grooves 12. The sliding connection blocks 13 are used in cooperation with the sliding guide rails to ensure the smoothness and accuracy during the sliding process, facilitating the positioning of the chip mounter and improving the mounting accuracy and welding quality; the material of the sliding connection blocks 13 is selected as a high-strength wear-resistant material to ensure that the sliding connection blocks 13 maintain good performance and long durability during frequent sliding.

[0037] Furthermore, the sliding connection block 13 is provided with a sliding connection block body 131, SMT positioning pins 132, and a locking position 133. The SMT positioning pins 132 are fixedly connected to the sliding connection block body 131, and the SMT positioning pins 132 can be adjusted according to different SMT positioning pin holes on the FPC board for the patch equipment to identify and position. A quick locking device is provided on the locking position 133 of the sliding connection block 13, and the quick locking device can be used to quickly fix and release the sliding connection block 13 to improve the convenience of operation. A lubricating layer is further provided at the bottom of the sliding connection block body 131 to reduce the sliding resistance and improve the sliding smoothness and durability of the sliding connection block 13. The SMT positioning pins 132 can also be designed as a structure with adjustable height, and by adjusting the height, it can adapt to FPC boards 4 with different thicknesses to improve the applicable range of the jig.

[0038] Further, the sliding grooves 12 are symmetrically arranged on the same side of the jig base 1, and the two sliding grooves 12 are not connected, which can effectively avoid the cross-interference of the sliding connection block 13. At the same time, it is convenient to adjust the sliding connection blocks 13 on both sides, optimize the operation experience, so as to provide more stable support during the operation, ensure the accurate positioning of the patch equipment, and improve the work efficiency.

[0039] It should be understood that in the present utility model, terms such as "first" and "second" are used to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, the "first" information can also be referred to as the "second" information, and similarly, the "second" information can also be referred to as the "first" information. In addition, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0040] The above is the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and deformations can still be made, and these improvements and deformations are also regarded as the protection scope of the present utility model.

Claims

1. A fixture for preventing false soldering of FPC devices, characterized in that, Comprising: Fixture base (1); Magnetic base plate (2), the magnetic base plate (2) is connected to the fixture base (1), the magnetic base plate (2) is provided with an FPC board installation area (23), and a magnet installation position (231) for installing a magnet is provided in the FPC board installation area (23); Magnetic cover plate (3), the FPC board (4) is connected to the FPC board installation area (23), the magnetic cover plate (3) is magnetically connected to the magnetic base plate (2) and clamps the FPC board (4) in the FPC board installation area (23).

2. The fixture for preventing false soldering of FPC devices according to claim 1, wherein The magnetic base plate (2) is further provided with a base plate positioning pin hole (21) and a base plate heat dissipation hole (22), the base plate positioning pin hole (21) is arranged outside the FPC board installation area (23), and the magnetic base plate (2) is fixedly connected to the fixture base (1) through the base plate positioning pin hole (21).

3. The fixture for preventing false soldering of FPC devices according to claim 2, characterized in that, The magnet installation position (231) is an embedded installation position, and the magnet installation positions (231) are equidistantly arranged in the FPC board installation area (23).

4. A fixture for preventing false soldering of FPC devices according to claim 3, characterized in that, The thickness range of the magnetic base plate (2) is 1.5 - 5 mm.

5. The fixture for preventing false soldering of FPC devices according to claim 2, characterized in that, The magnetic cover plate (3) is provided with a soldering work position (31) and a cover plate positioning pin hole (32), the FPC board (4) is soldered through the soldering work position (31), and the cover plate positioning pin hole (32) is in one-to-one correspondence and fit installation with the base plate positioning pin hole (21).

6. The fixture for preventing false soldering of FPC devices according to claim 5, characterized in that, The magnetic cover plate (3) is made of a magnetic material and can be closely attached to the magnetic base plate (2).

7. The fixture for preventing false soldering of FPC devices according to claim 6, characterized in that, The thickness range of the magnetic cover plate (3) is 0.02 - 2 mm.

8. A fixture for preventing false soldering of FPC devices according to claim 5, characterized in that, The fixture base (1) is provided with installation positioning pins (11), sliding grooves (12), and sliding connection blocks (13) around it. The magnetic base plate (2) and the fixture base (1) are fixedly connected through the base plate positioning pin hole (21) and the installation positioning pins (11). The magnetic cover plate (3) is positioned by snapping into the installation positioning pins (11) through the cover plate positioning pin holes (32) and tightly attaches the FPC board (4) to the magnetic base plate (2); the sliding connection blocks (13) are slidably connected to the sliding grooves (12) for positioning by a chip mounter.

9. A fixture for preventing false soldering of FPC devices according to claim 8, characterized in that, The sliding connection block (13) is provided with a sliding connection block body (131), SMT positioning pins (132), and a locking position (133). The SMT positioning pins (132) are fixedly connected to the sliding connection block body (131) for positioning by a chip mounter, and a quick locking device is provided on the locking position (133), and the quick locking device can perform sliding limit on the sliding connection block (13).

10. The fixture for preventing false soldering of FPC devices according to claim 8, characterized in that, The sliding grooves (12) are symmetrically arranged on the same side of the fixture base (1).

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