Clamping plate jig of flexible circuit board

Abstract

The utility model relates to the technical field of clamping plate jigs, and discloses a clamping plate jig of a flexible circuit board, which comprises a first frame, a second frame is hinged to one side of the first frame, supporting plates are fixedly arranged in the first frame and the second frame, and reinforcing structures are fixedly arranged on one side of the first frame and one side of the second frame. A plurality of connecting rods are rotationally arranged at the top of the first frame, when glue residue removal operation is carried out on the flexible circuit board, the flexible circuit board is placed on the supporting plate at the top of the first frame, then the second frame and the first frame are buckled, the pressing plate is rotated, the pressing plate is made to extrude and fix the second frame, then the second frame and the first frame are placed into the hanging frame, and the second frame and the first frame are hung on the hanging frame. The clamp plate jig can be used for removing glue residues, so that a magnet is prevented from being used for adsorption and fixation, the magnet replacement cost is saved, the flexible circuit board is prevented from falling off due to insufficient magnetism of the clamp plate jig, and meanwhile, the electric field of the glue residue removing machine is prevented from being interfered by magnetic field synchronization of the magnet.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping fixtures, in particular to a clamping fixture for flexible printed circuit boards. Background Art

[0002] A flexible printed circuit board, also known as a flexible printed circuit (FPC), is a printed circuit made of a flexible insulating substrate. Due to its unique flexibility and bendability, this circuit board plays an important role in the design and manufacturing of electronic products. The constituent materials of a flexible printed circuit board include an insulating film, a conductor, and an adhesive. The insulating film forms the base layer of the circuit, the conductor such as copper foil forms the conductive layer, and the adhesive is used to bond the layers together. When performing the operation of removing glue residues, a clamping fixture is required. Currently, the clamping fixtures used in the market are basically fixed by magnets. However, the magnets on the clamping fixture are simultaneously attacked by gas in the glue residue removal machine. After long-term use, the magnetism of the magnets will decline, the magnets will be corroded and fall off. The clamping fixture cannot fix the flexible printed circuit board, resulting in the board falling off and increasing the cost of replacing the magnets. At the same time, the magnetic field of the magnets on the fixture will interfere with the electric field of the glue residue removal machine, affecting the quality of the glue residue removal. Therefore, a clamping fixture for flexible printed circuit boards is proposed. Content of the Utility Model

[0003] The purpose of the utility model is to provide a clamping fixture for flexible printed circuit boards, so as to solve the problems raised in the above background art that the clamping fixtures used in the current market are basically fixed by magnets, and the magnets on the clamping fixture are simultaneously attacked by gas in the glue residue removal machine. After long-term use, the magnetism of the magnets will decline, the magnets will be corroded and fall off. The clamping fixture cannot fix the flexible printed circuit board, resulting in the board falling off and increasing the cost of replacing the magnets. At the same time, the magnetic field of the magnets on the fixture will interfere with the electric field of the glue residue removal machine, affecting the quality of the glue residue removal.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A clamping fixture for flexible printed circuit boards, including a first frame, one side of the first frame is hinged to a second frame, trays are fixedly arranged inside both the first frame and the second frame, reinforcing structures are fixedly arranged on one side of both the first frame and the second frame, a plurality of connecting rods are rotatably arranged at the top of the first frame, pressing plates are arranged at the tops of the plurality of connecting rods, a circular plate is arranged at the bottom of the pressing plate, a plurality of clamping plates are fixedly arranged on the outer side of the circular plate, both the circular plate and the clamping plates are buckled on the tops of the connecting rods, a rubber pad is arranged at the bottom of the pressing plate, and a bolt is arranged at the top of the pressing plate and one end of the bolt is threadedly connected to the connecting rod.

[0005] Preferably, the reinforcement structure includes a plurality of triangular plates, which are respectively installed on one side of the first frame and the second frame. Embedding plates are provided at the corners of the plurality of triangular plates. A plugging rod is fixedly provided at the bottom of the embedding plate, and the plugging rod penetrates through the triangular plate and inserts into the interior of the first frame or the second frame. An anti-slip sleeve is sleeved on the outer side of the plugging rod.

[0006] Preferably, a buckling groove is formed at the top of the connecting rod, and both the circular plate and the buckling plate are buckled inside the buckling groove.

[0007] Preferably, a threaded hole is formed inside the connecting rod, and the size of the bolt is adapted to that of the threaded hole.

[0008] Preferably, a groove is formed at the top of the triangular plate, and the embedding plate is embedded inside the groove.

[0009] Preferably, an annular groove is formed on the outer side of the plugging rod, and the anti-slip sleeve is sleeved inside the annular groove.

[0010] Compared with the prior art, the present utility model adopting the above technical solutions has the following technical effects:

[0011] By providing a connecting rod, a pressing plate, a circular plate, a buckling plate, a rubber pad and a bolt, when performing the operation of removing glue residues from the flexible circuit board, the second frame and the first frame are combined together, and then the pressing plate is rotated. The pressing plate and the rubber pad will be buckled on the inner wall of the top of the second frame, so as to buckle the second frame and the first frame together, avoiding the use of magnets for adsorption and fixation, saving the cost of magnet replacement, and preventing the flexible circuit board from falling off due to insufficient magnetism of the clamping jig. At the same time, it also avoids the magnetic field synchronization of the magnets from interfering with the electric field of the glue residue removal machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 It is a schematic diagram of the closed structure of the present utility model;

[0014] Figure 2 It is a schematic diagram of the unfolded structure of the present utility model;

[0015] Figure 3 It is a schematic diagram of the exploded structure of the present utility model;

[0016] Figure 4 It is a schematic diagram of the fixing structure of the present utility model;

[0017] Figure 5 For the present utility model Figure 1 Schematic enlarged structure diagram of A in

[0018] Explanation of reference numerals in the drawings: 1. First frame; 2. Second frame; 3. Support plate; 4. Triangular plate; 5. Embedded plate; 6. Plugging rod; 7. Anti-slip sleeve; 8. Connecting rod; 9. Pressing plate; 10. Circular plate; 11. Buckle plate; 12. Rubber pad; 13. Bolt. Specific implementation manners

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented by this application. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed in this application can cover.

[0021] Embodiment

[0022] In the prior art, the clamping fixtures currently used in the market are basically fixed by magnets. However, the magnets on the clamping fixtures will be synchronously attacked by gas in the desmear machine. After long-term use, the magnetism of the magnets will decline, the magnets will be corroded and fall off, the clamping fixtures cannot fix the flexible circuit board, resulting in board dropping, and the cost of replacing the magnets will increase. At the same time, the magnetic field of the magnets on the fixture will synchronously interfere with the electric field of the desmear machine, affecting the quality of the desmear.

[0023] Please refer to Figures 1-5, the present utility model provides a technical solution: a clamping fixture for a flexible circuit board, including a first frame 1, a second frame 2 is hinged to one side of the first frame 1, a support plate 3 is fixedly arranged inside both the first frame 1 and the second frame 2, a reinforcing structure is fixedly arranged on one side of both the first frame 1 and the second frame 2, a plurality of connecting rods 8 are rotatably arranged on the top of the first frame 1, a pressing plate 9 is arranged on the top of each of the plurality of connecting rods 8, a circular plate 10 is arranged at the bottom of the pressing plate 9, a plurality of clamping plates 11 are fixedly arranged on the outer side of the circular plate 10, the circular plate 10 and the clamping plates 11 are both buckled on the top of the connecting rod 8, a rubber pad 12 is arranged at the bottom of the pressing plate 9, a bolt 13 is arranged on the top of the pressing plate 9 and one end of the bolt 13 is threadedly connected with the connecting rod 8. When performing the operation of removing glue residues from the flexible circuit board, place the flexible circuit board on the support plate 3 on the top of the first frame 1, then buckle the second frame 2 with the first frame 1, rotate the pressing plate 9 to make the pressing plate 9 press and fix the second frame 2, and then place the second frame 2 and the first frame 1 into the hanging rack for removing glue residues, avoiding using magnets for adsorption and fixation, saving the cost of magnet replacement, and preventing the flexible circuit board from falling off due to insufficient magnetism of the clamping fixture. At the same time, it also avoids the magnetic field of the magnet interfering with the electric field of the glue residue removing machine.

[0024] The reinforcing structure includes a plurality of triangular plates 4, the plurality of triangular plates 4 are respectively installed on one side of the first frame 1 and the second frame 2, embedding plates 5 are arranged at the corners of the plurality of triangular plates 4, a plugging rod 6 is fixedly arranged at the bottom of the embedding plate 5 and the plugging rod 6 penetrates through the triangular plate 4 and inserts into the inside of the first frame 1 or the second frame 2, an anti-slip sleeve 7 is sleeved on the outer side of the plugging rod 6. When in use, install the triangular plates 4 on one side of the first frame 1 and the second frame 2, and then limit and fix the triangular plates 4 through the embedding plates 5 and the plugging rods 6, so as to reinforce the first frame 1 and the second frame 2 through the triangular plates 4 and improve the stability of the first frame 1 and the second frame 2.

[0025] A clamping groove is opened at the top of the connecting rod 8, and both the circular plate 10 and the clamping plates 11 are buckled inside the clamping groove, preventing the pressing plate 9 from rotating on the top of the connecting rod 8 through the circular plate 10 and the clamping plates 11.

[0026] A threaded hole is opened inside the connecting rod 8, the size of the bolt 13 is adapted to the threaded hole, and the bolt 13 fixedly installs the pressing plate 9 on the top of the connecting rod 8.

[0027] A groove is opened at the top of the triangular plate 4, the embedding plate 5 is embedded inside the groove, and the plugging rod 6 penetrates through the triangular plate 4 through the embedding plate 5.

[0028] An annular groove is opened on the outer side of the plugging rod 6, the anti-slip sleeve 7 is sleeved inside the annular groove, and the anti-slip sleeve 7 increases the friction between the plugging rod 6 and the first frame 1.

[0029] Working principle or structural principle. When performing the operation of removing glue residues from a flexible circuit board, the flexible circuit board is placed on the pallet 3 inside the first frame 1, and then the second frame 2 is combined with the first frame 1. The connecting rod 8 and the pressing plate 9 at the top of the first frame 1 will penetrate through the second frame 2, and then the pressing plate 9 is rotated. A rubber pad 12 is provided on the top of the pressing plate 9, and the pressing plate 9 and the rubber pad 12 will buckle on the inner wall of the top of the second frame 2, so as to buckle the second frame 2 and the first frame 1 together, avoiding the use of magnets for adsorption and fixation, saving the cost of magnet replacement, and avoiding the flexible circuit board from falling off due to insufficient magnetism of the clamping fixture. At the same time, it also avoids the magnetic field synchronization of the magnets from interfering with the electric field of the glue residue removal machine. Then, a plurality of triangular plates 4 are installed on one side of the first frame 1 and the second frame 2, and the triangular plates 4 are limited and fixed through the embedding plate 5 and the insertion rod 6, so as to reinforce the first frame 1 and the second frame 2 through the triangular plates 4 and improve the stability of the first frame 1 and the second frame 2.

[0030] Those skilled in the art can understand that the features recited in the various embodiments and / or claims of the present invention can be combined or / and combined in various ways, even if such combinations or combinations are not explicitly recited in the present invention. In particular, without departing from the spirit and teachings of the present invention, the features recited in the various embodiments and / or claims of the present invention can be combined and / or combined in various ways. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. A clamping fixture for a flexible circuit board, comprising a first frame (1), characterized in that: One side of the first frame (1) is hingedly connected to a second frame (2). Inside both the first frame (1) and the second frame (2), a pallet (3) is fixedly arranged. On one side of both the first frame (1) and the second frame (2), a reinforcement structure is fixedly arranged. At the top of the first frame (1), a plurality of connecting rods (8) are rotatably arranged. At the top of each of the plurality of connecting rods (8), a pressing plate (9) is arranged. At the bottom of the pressing plate (9), a circular plate (10) is arranged. On the outer side of the circular plate (10), a plurality of buckling plates (11) are fixedly arranged. Both the circular plate (10) and the buckling plates (11) are buckled on the top of the connecting rod (8). At the bottom of the pressing plate (9), a rubber pad (12) is arranged. On the top of the pressing plate (9), a bolt (13) is arranged and one end of the bolt (13) is threadedly connected to the connecting rod (8).

2. The clamping fixture for a flexible circuit board according to claim 1, characterized in that: The reinforcement structure includes a plurality of triangular plates (4). The plurality of triangular plates (4) are respectively installed on one side of the first frame (1) and the second frame (2). At the corners of each of the plurality of triangular plates (4), an embedding plate (5) is arranged. At the bottom of the embedding plate (5), a plugging rod (6) is fixedly arranged and the plugging rod (6) penetrates through the triangular plate (4) and inserts into the inside of the first frame (1) or the second frame (2). A non-slip sleeve (7) is sleeved on the outer side of the plugging rod (6).

3. The clamping fixture for a flexible circuit board according to claim 1, characterized in that: At the top of the connecting rod (8), a buckling groove is formed. Both the circular plate (10) and the buckling plates (11) are buckled inside the buckling groove.

4. The clamping fixture for a flexible circuit board according to claim 1, wherein: Inside the connecting rod (8), a threaded hole is formed. The size of the bolt (13) is adapted to the threaded hole.

5. The clamping jig for a flexible circuit board according to claim 2, characterized in that: At the top of the triangular plate (4), a groove is formed. The embedding plate (5) is embedded inside the groove.

6. The clamping fixture for a flexible circuit board according to claim 2, wherein: On the outer side of the plugging rod (6), an annular groove is formed. The non-slip sleeve (7) is sleeved inside the annular groove.

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