Shielding cover press-fitting device of PCB (Printed Circuit Board)

Abstract

The utility model discloses a PCB shielding cover press-fitting device, which belongs to the technical field of electronic manufacturing and comprises a base, a control panel is arranged on the side edge of the base, a supporting rod is arranged at the corner of the upper end of the base, a top plate is arranged at the upper end of the supporting rod, and a PCB and shielding cover positioning mechanism is arranged in the center of the upper end of the base. According to the utility model, through the arrangement of the PCB and shielding cover positioning mechanism, the rapid and accurate positioning of the PCB and the shielding cover is realized, the positioning plate can be driven by the bidirectional screw rod to accurately fix the PCB and the shielding cover through the movement of the nut block, and the damage in the positioning process is prevented through the arrangement of the rubber pad. According to the press-fitting device, the positioning stability and reliability are improved, the problems that a traditional press-fitting device is poor in positioning effect and prone to deviation are effectively solved, a stable positioning foundation is provided for follow-up press-fitting operation, and the press-fitting precision and quality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of electronic manufacturing technology, specifically relating to a PCB shielding cover pressing device. Background Technology

[0002] With the rapid development of electronic technology, the integration and complexity of electronic devices are constantly increasing, making electromagnetic compatibility (EMC) issues increasingly prominent. To ensure the normal operation of electronic devices in complex electromagnetic environments and to prevent electromagnetic signal leakage within the devices, electromagnetic shielding has become a crucial aspect of electronic device design and manufacturing. As a core component of electronic devices, the PCB's electromagnetic shielding is particularly important. Shielding covers, as a common electromagnetic shielding component, are typically mounted on the PCB using a press-fit method to achieve effective electromagnetic shielding.

[0003] The existing method of pressing the shielding cover has a relatively poor positioning effect on the PCB board and the shielding cover when in use, and it is easy to cause the problem of displacement during pressing. When pressing the shielding cover, it cannot effectively calculate the applied pressure, and only relies on the pressure sensor. However, the poor uniformity of the force on the pressure sensor will also affect its monitoring accuracy. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a PCB shielding cover pressing device, which facilitates the positioning and fixing of the PCB board and the shielding cover, and can accurately calculate the magnitude of the force applied during pressing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PCB shielding cover pressing device, including a base, a control panel is provided on the side of the base, a support rod is provided at the upper corner of the base, a top plate is provided at the upper end of the support rod, a PCB board and shielding cover positioning mechanism are provided at the upper center of the base, and a pressing mechanism is provided at the upper end of the top plate.

[0006] Preferably, the PCB board and shielding cover positioning mechanism includes a second bidirectional lead screw, a nut block, a positioning plate, a rubber pad, a first bidirectional lead screw, and a transmission assembly. The transmission assembly is provided on the side of the base. One side of the transmission assembly is located inside the base and the first bidirectional lead screw is provided inside the base. The other side of the transmission assembly is located inside the base and the second bidirectional lead screw is provided. Two sets of nut blocks are symmetrically arranged on the surfaces of the second bidirectional lead screw and the first bidirectional lead screw. A positioning plate is provided at the upper end of the nut block, and a rubber pad is provided on the side of the positioning plate.

[0007] Preferably, the transmission assembly includes a first synchronous pulley, a motor, a mounting box, a synchronous belt, and a second synchronous pulley. The mounting box is located on the side of the base, and the motor is located on the side of the mounting box. The output end of the motor is connected to one end of a first bidirectional lead screw. A first synchronous pulley is located inside the mounting box on one end surface of the first bidirectional lead screw, and a second synchronous pulley is located inside the mounting box on one end surface of the second bidirectional lead screw. A synchronous belt meshes with the outer surfaces of the first and second synchronous pulleys.

[0008] Preferably, the other ends of both the second and first bidirectional lead screws are rotatably connected to the base via bearings, and the nut block has screw holes corresponding to the second and first bidirectional lead screws inside.

[0009] Preferably, the pressing mechanism includes a lifting plate, a force monitoring component, a hydraulic cylinder, a buffer spring, and a limiting circular plate. The upper end of the top plate is provided with a hydraulic cylinder, and the output end of the hydraulic cylinder is provided with a lifting plate. The interior of the lifting plate has a through hole corresponding to the support rod. The lower end of the lifting plate is provided with a force monitoring component. The lower end surface of the support rod is provided with a limiting circular plate, and the surface of the support rod is fitted with a buffer spring at the upper end of the limiting circular plate.

[0010] Preferably, the force magnitude monitoring component includes a slide groove, a mounting base, a slider, a pressure plate, and a pressure sensor. The lower end of the lifting plate is provided with a mounting base, the upper end of the inside of the mounting base is fixed with a pressure sensor, the inside of the mounting base is slidably connected with a pressure plate, the upper end of the side of the pressure plate is provided with a slider, and the side of the mounting base is provided with a slide groove corresponding to the slider.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model achieves rapid and accurate positioning of the PCB board and shielding cover by setting up a PCB board and shielding cover positioning mechanism. Under the drive of the bidirectional lead screw, the positioning plate can accurately fix the PCB board and shielding cover through the movement of the nut block. The rubber pad prevents damage during the positioning process, improves the stability and reliability of positioning, and effectively solves the problems of poor positioning effect and easy deviation of traditional pressing devices. It provides a stable positioning foundation for subsequent pressing operations and improves pressing accuracy and quality.

[0013] 2. This utility model provides stable pressing power and precise pressing force control by setting up a pressing mechanism. The hydraulic cylinder drives the lifting plate to move up and down, and the pressure sensor in the force monitoring component monitors the pressing force in real time to ensure the uniformity and accuracy of the pressing force. The setting of buffer spring and limit plate effectively prevents overpressure or impact during the pressing process, protecting the PCB board and shielding cover from damage. This design improves the stability and reliability of pressing, ensures the consistency and high quality of pressing effect, and effectively improves production efficiency and product quality. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a perspective view of the PCB board and shielding cover positioning mechanism of this utility model;

[0016] Figure 3 This is a perspective view of the transmission component of this utility model;

[0017] Figure 4 This is a perspective view of the pressing mechanism of this utility model;

[0018] Figure 5 This is a three-dimensional cross-sectional view of the force magnitude monitoring component of this utility model;

[0019] In the diagram: 1. Base; 2. PCB board and shielding cover positioning mechanism; 21. Two-way lead screw II; 22. Nut block; 23. Positioning plate; 24. Rubber pad; 25. Two-way lead screw I; 26. Transmission assembly; 261. Synchronous pulley I; 262. Motor; 263. Mounting box; 264. Synchronous belt; 265. Synchronous pulley II; 3. Control panel; 4. Top plate; 5. Support rod; 6. Pressing mechanism; 61. Lifting plate; 62. Force magnitude monitoring assembly; 621. Slide groove; 622. Mounting seat; 623. Slider; 624. Pressure plate; 625. Pressure sensor; 63. Hydraulic cylinder; 64. Buffer spring; 65. Limiting circular plate. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figure 1-5 The present invention provides the following technical solution: a PCB shielding cover pressing device, including a base 1, a control panel 3 is provided on the side of the base 1, a support rod 5 is provided at the upper corner of the base 1, a top plate 4 is provided at the upper end of the support rod 5, a PCB board and shielding cover positioning mechanism 2 is provided at the upper center of the base 1, and a pressing mechanism 6 is provided at the upper end of the top plate 4.

[0023] Specifically, the PCB board and shielding cover positioning mechanism 2 includes a second bidirectional lead screw 21, a nut block 22, a positioning plate 23, a rubber pad 24, a first bidirectional lead screw 25, and a transmission assembly 26. The transmission assembly 26 is located on the side of the base 1. One side of the transmission assembly 26, inside the base 1, has the first bidirectional lead screw 25, and the other side of the transmission assembly 26, inside the base 1, has the second bidirectional lead screw 21. Two sets of nut blocks 22 are symmetrically arranged on the surfaces of the second bidirectional lead screw 21 and the first bidirectional lead screw 25. A positioning plate 23 is located at the upper end of each nut block 22, and a rubber pad 24 is located on the side of the positioning plate 23.

[0024] By adopting the above technical solution, the PCB board and shielding cover can be positioned quickly and accurately. The rubber pad 24 can prevent damage to the PCB board and shielding cover during the positioning process, improve the stability and reliability of positioning, and effectively solve the problems of poor positioning effect and easy deviation of traditional pressing device.

[0025] Specifically, the transmission assembly 26 includes a first synchronous pulley 261, a motor 262, a mounting box 263, a synchronous belt 264, and a second synchronous pulley 265. The mounting box 263 is located on the side of the base 1, and the motor 262 is located on the side of the mounting box 263. The output end of the motor 262 is connected to one end of a first bidirectional lead screw 25. The first synchronous pulley 261 is located inside the mounting box 263 on one end surface of the first bidirectional lead screw 25, and the second synchronous pulley 265 is located inside the mounting box 263 on one end surface of the second bidirectional lead screw 21. The synchronous belt 264 meshes with the outer surfaces of the first synchronous pulley 261 and the second synchronous pulley 265.

[0026] By adopting the above technical solution, the motor 262 drives the bidirectional lead screw 25 to rotate. Through the meshing transmission of the synchronous belt 264 and the synchronous pulleys 261 and 265, the bidirectional lead screw 21 rotates synchronously, thereby realizing the synchronous movement of the two sets of nut blocks 22, which in turn drives the positioning plate 23 to position the PCB board and the shielding cover. This transmission method is stable and reliable, and has high positioning accuracy.

[0027] Specifically, the other ends of both the second bidirectional lead screw 21 and the first bidirectional lead screw 25 are rotatably connected to the base 1 via bearings, and the nut block 22 has screw holes corresponding to the second bidirectional lead screw 21 and the first bidirectional lead screw 25 inside.

[0028] By adopting the above technical solution, it is ensured that the two-way lead screw 21 and the two-way lead screw 25 can rotate smoothly and steadily, and the nut block 22 is more stable when moving on the two-way lead screw, which further improves the accuracy and reliability of the positioning mechanism.

[0029] In this embodiment, the PCB board is first placed on the base 1. The motor 262 is started through the control panel 3. The motor 262 drives the bidirectional lead screw 1 25 and bidirectional lead screw 21 to rotate. The nut block 22 moves along the bidirectional lead screw, causing the positioning plate 23 to move closer to the PCB board until the rubber pad 24 is in close contact with the PCB board, thus completing the positioning of the PCB board. Then, the shielding cover is placed on the PCB board, and the motor 262 is started again to position the shielding cover with the positioning plate 23, ensuring the precise alignment of the shielding cover and the PCB board, and providing a stable positioning foundation for subsequent pressing operations.

[0030] Example 2

[0031] The difference between this embodiment and Embodiment 1 is that the pressing mechanism 6 includes a lifting plate 61, a force monitoring component 62, a hydraulic cylinder 63, a buffer spring 64, and a limiting circular plate 65. The upper end of the top plate 4 is equipped with the hydraulic cylinder 63, and the output end of the hydraulic cylinder 63 is equipped with the lifting plate 61. The lifting plate 61 has a through hole corresponding to the support rod 5. The lower end of the lifting plate 61 is equipped with the force monitoring component 62. The lower surface of the support rod 5 is equipped with a limiting circular plate 65, and the surface of the support rod 5, above the limiting circular plate 65, is fitted with a buffer spring 64.

[0032] By adopting the above technical solution, the hydraulic cylinder 63 can provide stable pressing power, the lifting plate 61 moves smoothly and reliably, the force magnitude monitoring component 62 can monitor the force applied during the pressing process in real time, ensuring the uniformity and accuracy of the pressing force, and the setting of the buffer spring 64 and the limiting circular plate 65 can effectively prevent overpressure or impact during the pressing process, protecting the PCB board and shielding cover from damage.

[0033] Specifically, the force monitoring component 62 includes a slide 621, a mounting base 622, a slider 623, a pressure plate 624, and a pressure sensor 625. The lower end of the lifting plate 61 is provided with the mounting base 622. The pressure sensor 625 is fixedly mounted inside the upper part of the mounting base 622. The pressure plate 624 is slidably connected inside the mounting base 622. The upper side of the pressure plate 624 is provided with a slider 623. The side of the mounting base 622 has a corresponding slide groove 621 for the slider 623.

[0034] By adopting the above technical solution, the pressure plate 624 moves downward under the drive of the lifting plate 61, contacts the shielding cover and applies pressure. The pressure sensor 625 monitors the pressure on the pressure plate 624 in real time and feeds the data back to the control panel 3. The operator can adjust the pressing parameters in time according to the monitoring data to ensure the uniformity and accuracy of the pressing force. The cooperation of the slide groove 621 and the slider 623 ensures the smooth movement of the pressure plate 624 and improves the stability of the pressing.

[0035] In this embodiment, the positioned PCB board and shielding cover are placed below the pressing mechanism 6. The hydraulic cylinder 63 is activated via the control panel 3, which pushes the lifting plate 61 downward. The lifting plate 61 drives the force monitoring component 62 to descend synchronously. The pressure plate 624 contacts the shielding cover and begins to apply pressure. The pressure sensor 625 monitors the pressure in real time and displays it on the control panel 3. The operator adjusts the output force of the hydraulic cylinder 63 according to the monitoring data to ensure that the pressing force is within the set range. When the pressing is completed and the pressure reaches the set value, the hydraulic cylinder 63 stops working, and the lifting plate 61 slowly rises under the action of the buffer spring 64, completing one pressing operation. The whole process is highly automated, with good pressing effect, effectively improving production efficiency and product quality.

[0036] The pressure sensor 625 in this utility model is a previously disclosed technology, and the selected model is FSG15N500.

[0037] The working principle and usage process of this utility model are as follows: First, the PCB board is placed on the base 1. The motor 262 is started via the control panel 3. The motor 262 drives the first bidirectional lead screw 25 and the second bidirectional lead screw 21 to rotate. The nut block 22 moves along the bidirectional lead screws, causing the positioning plate 23 to move closer to the PCB board until the rubber pad 24 is in close contact with the PCB board, completing the PCB board positioning. Then, the shielding cover is placed on the PCB board, and the motor 262 is started again to position the shielding cover with the positioning plate 23, ensuring precise alignment between the shielding cover and the PCB board, providing a stable positioning foundation for subsequent pressing operations. The positioned PCB board and shielding cover are then placed on the pressing... Below mechanism 6, hydraulic cylinder 63 is activated via control panel 3. Hydraulic cylinder 63 pushes lifting plate 61 downward, and lifting plate 61 drives force monitoring component 62 to descend synchronously. Pressure plate 624 contacts shielding cover and begins to apply pressure. Pressure sensor 625 monitors pressure in real time and displays it on control panel 3. Operators adjust the output force of hydraulic cylinder 63 according to the monitoring data to ensure that the pressing force is within the set range. When pressing is completed and the pressure reaches the set value, hydraulic cylinder 63 stops working, and lifting plate 61 slowly rises under the action of buffer spring 64, completing one pressing operation. The whole process is highly automated, with good pressing effect, effectively improving production efficiency and product quality.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PCB shielding cover pressing device, comprising a base (1), a control panel (3) provided on the side of the base (1), a support rod (5) provided at the upper corner of the base (1), and a top plate (4) provided at the upper end of the support rod (5), characterized in that: A PCB board and shielding cover positioning mechanism (2) is provided at the upper center of the base (1), and a pressing mechanism (6) is provided at the upper end of the top plate (4).

2. The PCB shielding cover pressing device according to claim 1, characterized in that: The PCB board and shielding cover positioning mechanism (2) includes a two-way lead screw two (21), a nut block (22), a positioning plate (23), a rubber pad (24), a two-way lead screw one (25), and a transmission assembly (26). The transmission assembly (26) is provided on the side of the base (1). One side of the transmission assembly (26) is located inside the base (1) and a two-way lead screw one (25) is provided. The other side of the transmission assembly (26) is located inside the base (1) and a two-way lead screw two (21) is provided. Two sets of nut blocks (22) are symmetrically arranged on the surfaces of the two-way lead screw two (21) and the two-way lead screw one (25). A positioning plate (23) is provided at the upper end of the nut block (22), and a rubber pad (24) is provided on the side of the positioning plate (23).

3. The PCB shielding cover pressing device according to claim 2, characterized in that: The transmission assembly (26) includes a first synchronous pulley (261), a motor (262), a mounting box (263), a synchronous belt (264), and a second synchronous pulley (265). The mounting box (263) is provided on the side of the base (1), and the motor (262) is provided on the side of the mounting box (263). The output end of the motor (262) is connected to one end of a double-acting lead screw (25). One end surface of the double-acting lead screw (25) is located inside the mounting box (263) and a first synchronous pulley (261) is provided. One end surface of the double-acting lead screw (21) is located inside the mounting box (263) and a second synchronous pulley (265) is provided. The outer surfaces of the first synchronous pulley (261) and the second synchronous pulley (265) are meshed with a synchronous belt (264).

4. The PCB shielding cover pressing device according to claim 3, characterized in that: The other ends of the two-way lead screw 2 (21) and the two-way lead screw 1 (25) are rotatably connected to the base (1) through bearings, and the nut block (22) has screw holes corresponding to the two-way lead screw 2 (21) and the two-way lead screw 1 (25) inside.

5. The PCB shielding cover pressing device according to claim 1, characterized in that: The pressing mechanism (6) includes a lifting plate (61), a force monitoring component (62), a hydraulic cylinder (63), a buffer spring (64), and a limiting circular plate (65). The upper end of the top plate (4) is provided with a hydraulic cylinder (63), and the output end of the hydraulic cylinder (63) is provided with a lifting plate (61). The interior of the lifting plate (61) is provided with a through hole corresponding to the support rod (5). The lower end of the lifting plate (61) is provided with a force monitoring component (62), and the lower end surface of the support rod (5) is provided with a limiting circular plate (65). The surface of the support rod (5) is fitted with a buffer spring (64) at the upper end of the limiting circular plate (65).

6. The PCB shielding cover pressing device according to claim 5, characterized in that: The force magnitude monitoring component (62) includes a slide groove (621), a mounting base (622), a slider (623), a pressure plate (624), and a pressure sensor (625). The lower end of the lifting plate (61) is provided with a mounting base (622). The upper end of the inside of the mounting base (622) is fixed with a pressure sensor (625). The inside of the mounting base (622) is slidably connected with a pressure plate (624). The upper side of the pressure plate (624) is provided with a slider (623). The side of the mounting base (622) is provided with a slide groove (621) corresponding to the slider (623).

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