A PCB anti-shaking insertion frame jig
By using a fixed base, positioning frame, and magnet block design in the insert-type fixture, the problem of unstable tape fixation in existing fixtures is solved, achieving precise positioning and stable fixation of the PCB board, thus improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 千思跃智能科技(苏州)股份有限公司
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-23
Smart Images
Figure CN224401976U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of PCB board processing technology, specifically relating to a frame-type fixture for preventing PCB board shaking. Background Technology
[0002] In the electronics manufacturing industry, aluminum substrates, as a substrate with good heat dissipation performance, are widely used in the production and manufacturing process of various electronic products. In order to ensure the stability of aluminum substrates in processes such as printing and welding, and to avoid affecting product quality due to problems such as positional displacement, appropriate fixtures are required to fix them.
[0003] However, the existing method of fixing aluminum substrate products with fixtures is to attach single-sided high-temperature tape to the edge of the product. This method relies on manual operation, and in actual operation, it is difficult to accurately control the application range of the tape. It is very easy for the tape to cover the tin-plated area of the aluminum substrate, which will lead to the problem of tin pooling on the tin-plated board when the product goes through the reflow soldering process, affecting product quality. At the same time, this method also has the problem of excessive use of high-temperature tape, resulting in waste and increasing production costs.
[0004] To address the aforementioned issues, this application proposes a frame-type fixture for preventing PCB board wobbling. Utility Model Content
[0005] To address the aforementioned problems in the existing technology, this utility model provides a PCB board anti-shake insert-frame fixture, which has the characteristics of improving product quality and reducing production costs.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a PCB board anti-sway insert-frame fixture, comprising a fixed base, two sets of positioning frames and an SMT fixture respectively arranged above the fixed base, the outer surface of the SMT fixture contacting the inner wall of the positioning frames, two sets of positioning posts fixedly connected to the upper surface of the fixed base, two PCB boards arranged inside the SMT fixture, the inner wall of each PCB board contacting the outer surface of the positioning posts, a steel sheet arranged above the SMT fixture, two sets of magnet blocks arranged inside the SMT fixture, two magnet plates arranged inside the steel sheet, the bottom surface of each magnet plate contacting the upper surface of the magnet block, and the inner wall of the steel sheet contacting the outer surface of the PCB board.
[0007] As a preferred embodiment of this utility model, a support pad is fixedly connected to the bottom surface of the fixed base, and the support pad is made of rubber.
[0008] As a preferred embodiment of this utility model, each positioning frame is provided with two fixing pins above it, and the bottom end of each fixing pin passes through the positioning frame and extends into the interior of the fixing base.
[0009] As a preferred technical solution of this utility model, the upper surface of the fixed base is provided with two sets of connecting holes, and each connecting hole is provided with a connecting pin.
[0010] As a preferred technical solution of this utility model, the bottom surface of the SMT fixture is fixedly connected to two assist plates, and the bottom surface of each assist plate is provided with anti-slip holes arranged at equal intervals.
[0011] As a preferred embodiment of this utility model, a connecting plate is fixedly connected to both sides of the steel sheet, and a handle is fixedly connected to the side of the two connecting plates that are far apart from each other.
[0012] As a preferred embodiment of this utility model, each of the magnet blocks has a fixed frame fixedly connected to its outer surface, and the outer surface of each fixed frame is fixedly connected to the inner wall of the SMT fixture.
[0013] As a preferred embodiment of this utility model, the steel sheet is internally fixedly connected to a mounting frame, and the inner wall of each mounting frame is fixedly connected to the outer surface of the magnet plate.
[0014] Compared with existing technologies, the advantages of this utility model are as follows: By combining a fixed base and a positioning frame, the SMT fixture can be stably supported and positioned, preventing it from shifting during operation. Simultaneously, the positioning posts of the fixed base, in conjunction with the SMT fixture, can precisely limit the PCB board's position, preventing it from shaking. This solves the printing offset problem caused by unstable manual tape application. Furthermore, the magnetic blocks inside the SMT fixture and the magnetic plates inside the steel sheet attract each other, quickly fixing the steel sheet above the SMT fixture and further enhancing the PCB board's fixation. Moreover, the absence of single-sided high-temperature tape avoids the problem of solder pooling caused by tape covering the aluminum substrate's solder-spraying area, further reducing tape waste and lowering production costs. In addition, the overall structural design simplifies the operation process, reduces manual intervention, and improves work efficiency, achieving a dual improvement in product quality and production efficiency. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the fixed base in this utility model;
[0018] Figure 3 This is a schematic diagram of the PCB board structure in this utility model;
[0019] Figure 4 This is a schematic diagram of the SMT fixture in this utility model;
[0020] Figure 5 This is a bottom view of the steel sheet structure in this utility model;
[0021] In the diagram: 1. Fixed base; 2. SMT fixture; 3. PCB board; 4. Steel sheet; 5. Positioning bracket; 6. Support pad; 7. Connecting pin; 8. Fixing pin; 9. Connecting hole; 10. Fixing bracket; 11. Connecting plate; 12. Handle; 13. Assist plate; 14. Anti-slip hole; 15. Positioning post; 16. Magnet block; 17. Mounting bracket; 18. Magnet plate. Detailed Implementation
[0022] 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. Example
[0023] Please see Figure 1-5 The present invention provides the following technical solution: a PCB board anti-shake insert frame fixture, including a fixed base 1, two sets of positioning frames 5 and an SMT fixture 2 are respectively arranged on the upper part of the fixed base 1, the outer surface of the SMT fixture 2 is in contact with the inner wall of the positioning frame 5, two sets of positioning posts 15 are fixedly connected to the upper surface of the fixed base 1, two PCB boards 3 are arranged inside the SMT fixture 2, the inner wall of each PCB board 3 is in contact with the outer surface of the positioning post 15, a steel sheet 4 is arranged on the upper part of the SMT fixture 2, two sets of magnet blocks 16 are arranged inside the SMT fixture 2, two magnet plates 18 are arranged inside the steel sheet 4, the bottom surface of each magnet plate 18 is in contact with the upper surface of the magnet block 16, and the inner wall of the steel sheet 4 is in contact with the outer surface of the PCB board 3;
[0024] In this embodiment, the inner wall of the PCB board 3 is provided with positioning holes that are compatible with the positioning posts 15. During assembly, the PCB board 3 can be accurately positioned by the tight fit between the outer surface of the positioning post 15 and the inner wall of the positioning hole. At the same time, the operator needs to keep the PCB board 3 and the groove of the SMT fixture 2 in a vertical position and place it smoothly into the groove.
[0025] Specifically, a support pad 6 is fixedly connected to the bottom surface of the fixed base 1. The support pad 6 is made of rubber. In this embodiment, the rubber material of the support pad 6 can support the fixed base 1 and improve the stability of the fixed base 1 when it is placed.
[0026] Specifically, each positioning frame 5 is provided with two fixing pins 8 on its upper part. The bottom end of each fixing pin 8 passes through the positioning frame 5 and extends into the interior of the fixed base 1. In this embodiment, the positioning frame 5 can be fixed to the fixed base 1 by means of fixing pins 8, so that the positioning frame 5 can be stable.
[0027] Specifically, the upper surface of the fixed base 1 is provided with two sets of connecting holes 9, and each connecting hole 9 is provided with a connecting pin 7. In this embodiment, the connecting pin 7 can be connected through the connecting holes 9, and the fixed base 1 can be fixed through the connecting pin 7.
[0028] Specifically, the bottom surface of the SMT fixture 2 is fixedly connected to two assist plates 13. Each assist plate 13 has anti-slip holes 14 arranged at equal intervals on its bottom surface. In this embodiment, the SMT fixture 2 can be moved easily by using the assist plates 13 in conjunction with the anti-slip holes 14.
[0029] Specifically, connecting plates 11 are fixedly connected to both sides of the steel sheet 4, and handles 12 are fixedly connected to the sides of the two connecting plates 11 that are far apart from each other. In this embodiment, the handles 12 can be fixed to the steel sheet 4 through the connecting plates 11, and the handles 12 can improve the convenience of moving the steel sheet 4.
[0030] Specifically, each magnet block 16 has a fixed bracket 10 fixedly connected to its outer surface, and the outer surface of each fixed bracket 10 is fixedly connected to the inner wall of the SMT fixture 2. In this embodiment, the magnet block 16 can be fixed by the fixed bracket 10, so that the magnet block 16 can be used stably.
[0031] Specifically, the steel sheet 4 is internally fixedly connected to a mounting bracket 17, and the inner wall of each mounting bracket 17 is fixedly connected to the outer surface of the magnet plate 18. In this embodiment, the magnet plate 18 can be fixed inside the steel sheet 4 through the mounting bracket 17.
[0032] The working principle and usage process of this utility model are as follows: First, the fixed base 1 is securely installed on the workbench by engaging the connecting hole 9 and connecting pin 7 on the fixed base 1. At this time, the rubber support pad 6 on the bottom of the fixed base 1 enhances the overall stability through its elasticity and anti-slip properties, preventing slippage during operation. Next, the two sets of positioning frames 5 are fixed above the fixed base 1 by the fixing pin 8, ensuring that the inner wall of the positioning frame 5 precisely fits the outer surface of the SMT fixture 2, providing lateral restraint for the SMT fixture 2 and preventing lateral displacement during operation. Then, the operation... The operator holds the assist plate 13 on the bottom of the SMT fixture 2 and places the SMT fixture 2 on the fixed base 1, ensuring that its outer surface is in close contact with the inner wall of the positioning frame 5, thus completing the initial positioning of the SMT fixture 2. Then, the operator takes the first PCB board 3, aligning its pre-set positioning holes with the positioning posts 15 on the fixed base 1, keeping the PCB board 3 perpendicular to the groove of the SMT fixture 2, and slowly inserts it into the groove along the positioning posts 15 until the bottom surface of the PCB board 3 is tightly fitted to the bottom of the groove. The second PCB board 3 is then inserted in the same manner, ensuring that each PCB board 3 passes through the positioning holes and is aligned with the positioning posts 15. Positioning posts 15 are precisely fitted and tightly adhered to the underlying substrate. After all PCB boards 3 have been placed, an inspection is required to ensure no boards are missing and that each PCB board 3 is perfectly aligned with the positioning posts 15. Then, the magnetic steel sheet 4 is placed according to the milled corners of the SMT fixture 2. During placement, it must be ensured that the magnetic steel sheet 4 is not tilted, does not extend beyond the four corner grooves, and is completely flat and free of wrinkles. At this point, the outer surface of the PCB board 3 is in contact with the inner wall of the steel sheet 4. The magnetic steel sheet 4, through the attraction between the internal magnetic plate 18 and the internal magnetic block 16 of the SMT fixture 2, ensures that the steel sheet 4 is tightly adhered to the PCB board. 3. The surface further fixes the PCB board 3. During the operation, the overall structure prevents the PCB board 3 from shaking from multiple dimensions through the positioning frame 5 limiting the SMT fixture 2, the positioning column 15 precisely constraining the PCB board 3, and the magnetic attraction of the magnet block 16 and the magnet plate 18. This replaces the traditional tape fixing method. After the operation is completed, simply lift the handle 12 upwards to overcome the magnetic attraction and remove the steel plate 4, and the PCB board 3 can be taken out in sequence. The operation is convenient and efficient. It not only solves the problem of solder bridging and misalignment caused by manual tape application, but also simplifies the operation process and achieves a dual improvement in product quality and production efficiency.
[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A PCB board anti-shake insert-frame fixture, characterized in that: The fixture includes a fixed base (1), on which two sets of positioning frames (5) and an SMT fixture (2) are respectively arranged. The outer surface of the SMT fixture (2) is in contact with the inner wall of the positioning frame (5). Two sets of positioning posts (15) are fixedly connected to the upper surface of the fixed base (1). Two PCB boards (3) are arranged inside the SMT fixture (2). The inner wall of each PCB board (3) is in contact with the outer surface of the positioning post (15). A steel sheet (4) is arranged above the SMT fixture (2). Two sets of magnet blocks (16) are arranged inside the SMT fixture (2). Two magnet plates (18) are arranged inside the steel sheet (4). The bottom surface of each magnet plate (18) is in contact with the upper surface of the magnet block (16). The inner wall of the steel sheet (4) is in contact with the outer surface of the PCB board (3).
2. The PCB board anti-shake insert-type fixture according to claim 1, characterized in that: The bottom surface of the fixed base (1) is fixedly connected to a support pad (6), which is made of rubber.
3. The PCB board anti-shake insert-type fixture according to claim 1, characterized in that: Each of the positioning frames (5) is provided with two fixing pins (8) above it, and the bottom end of each fixing pin (8) passes through the positioning frame (5) and extends into the interior of the fixing base (1).
4. The PCB board anti-shake insert-type fixture according to claim 1, characterized in that: The upper surface of the fixed base (1) is provided with two sets of connecting holes (9), and each connecting hole (9) is provided with a connecting pin (7).
5. A PCB board anti-shake insert-type fixture according to claim 1, characterized in that: The bottom surface of the SMT fixture (2) is fixedly connected to two assist plates (13), and each assist plate (13) has anti-slip holes (14) arranged at equal intervals on its bottom surface.
6. A PCB board anti-shake insert-type fixture according to claim 1, characterized in that: Both sides of the steel sheet (4) are fixedly connected to connecting plates (11), and handles (12) are fixedly connected to the sides of the two connecting plates (11) that are far apart from each other.
7. A PCB board anti-shake insert-type fixture according to claim 1, characterized in that: Each of the magnet blocks (16) has a fixed bracket (10) fixedly connected to its outer surface, and the outer surface of each of the fixed brackets (10) is fixedly connected to the inner wall of the SMT fixture (2).
8. A PCB board anti-shake insert-type fixture according to claim 1, characterized in that: The steel sheet (4) is internally fixedly connected to a mounting bracket (17), and the inner wall of each mounting bracket (17) is fixedly connected to the outer surface of the magnet plate (18).