Double-layer PCB circuit board edge trimming device

Abstract

The application discloses a double-layer PCB circuit board edge trimming device and belongs to the field of PCB processing, which comprises a base, the surface of the base is sequentially and uniformly provided with struts, the top of the strut is provided with a top plate, the surface of the base is provided with a mounting bracket, the inside of the mounting bracket is connected with a support plate through a connecting spring, the surface center of the top plate is embeddedly provided with a mounting seat, the mounting seat is connected and fixed with a fixed frame through a bolt matched connecting piece, a hydraulic cylinder is installed in the fixed frame, the hydraulic cylinder is connected with a trimming mechanism through a piston rod matched with the top plate. The positioning structure of the PCB circuit board is optimized, the adjustable support plate part is matched with the spring sheet and the pressing plate at the top to form a pressing assembly, and good protection effect is formed.

Description

Technical Field

[0001] This invention relates to the field of PCB processing, specifically to a double-layer PCB edge trimming device. Background Technology

[0002] Application No. CN201921873286.9 discloses a PCB board processing tool with edge trimming function, including a base and a pad. The pad is located on the front side of the base, and fixed frames are located at both ends of the rear top of the base. A first motor is located on the right side of the right fixed frame. A first motor shaft is rotatably connected to the left side of the first motor, and the motor shaft passes through the fixed frame and connects to a transmission rod. The transmission rod is positioned between the fixed frames, and a guide rod is located on the front side of the transmission rod. Both the transmission rod and the guide rod pass through a slide block, and a housing is located on the front side of the slide block. The bottom of the housing is connected to a sliding groove, which is located on the top of the base. A second motor is located inside the housing. This invention uses the transmission rod to drive the saw blade to cut the edge of the PCB board. Simultaneously, the grinding layer on the inner ring of the saw blade surface facilitates grinding of the sides of the PCB board during cutting, improving practicality.

[0003] However, the following problems still exist: the overall structure is relatively complex, and it is necessary to ensure that the position of the manual PCB board is fixed when performing the trimming operation, which poses certain safety hazards. Summary of the Invention

[0004] The purpose of this invention is to provide a double-layer PCB circuit board edge trimming device. By optimizing the positioning structure of the PCB circuit board, and utilizing the adjustable support plate part in conjunction with the top spring and pressure plate to form a pressure application component, a good protective effect is achieved.

[0005] The present invention provides the following technical solution: a double-layer PCB circuit board edge trimming device, including a base, on which support columns are evenly arranged in sequence on the surface of the base, and a top plate is provided on the top of the support columns. A mounting frame is provided on the surface of the base, and the interior of the mounting frame is connected to the support plate through a connecting spring.

[0006] An installation base is embedded in the center of the surface of the top plate. The installation base is connected and fixed to the fixed frame by bolts and connecting parts. A hydraulic cylinder is installed in the fixed frame. The hydraulic cylinder passes through the top plate through a piston rod and is connected to a trimming mechanism.

[0007] The trimming mechanism includes a mounting platform, a connecting seat, guide rods, a cap, a pressure plate, and a spring sleeve. The mounting platform has a connecting seat at its top center, and the piston rod is keyed to the connecting seat. Two guide rods are slidably mounted on both sides of the mounting platform, and a pressure plate is bolted to the bottom of each guide rod. The mounting platform has a connecting piece at its bottom center, and a tool holder is bolted to the connecting piece. A blade is mounted on the tool holder.

[0008] Preferably, both sides of the support plate are integrally formed with sliders, and the inner wall of the mounting frame is symmetrically provided with sliding grooves, and the support plate is slidably connected to the sliding grooves through the sliders.

[0009] Preferably, a spring sleeve is fitted onto the surface of the guide rod between the mounting platform and the pressure plate, and the two sides of the spring sleeve are fixed to the mounting platform and the pressure plate, respectively.

[0010] Preferably, the top of the guide rod is provided with a cap.

[0011] Preferably, the surface of the pressure plate is fitted with a spring sheet, the spring sheet comprising a base plate, a padding layer, a reinforcing layer, an outer skin layer, and a pressure-resistant filler.

[0012] Preferably, the padding layer is an integrated structure made of rubber material, the reinforcing layer is an integrated structure made of aluminum sheet material, the outer skin layer is made of silicone material, and the compressive filler is made of glass wool material.

[0013] The technical effects and advantages of this invention are as follows:

[0014] This invention optimizes the positioning structure of the PCB circuit board by using an adjustable support plate combined with a top spring and pressure plate to form a pressure-applying assembly, achieving excellent protection. When performing the trimming action, simply place the PCB board on the support plate surface, and press down on the PCB board using the spring, thereby clamping and fixing it with the support plate. The bidirectional elastic reaction force improves stable clamping. As the downward pressure of the piston rod increases, the PCB board will be completely fixed. The overall operation is simple, easy to implement, and highly safe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the trimming mechanism of the present invention;

[0017] Figure 3 This is a schematic diagram of the spring clip structure of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Base; 2. Support column; 3. Top plate; 4. Mounting bracket; 5. Connecting spring; 6. Support plate; 7. Slider; 8. Slide groove; 9. Mounting seat; 11. Connector; 12. Fixing frame; 13. Hydraulic cylinder; 14. Piston rod; 15. Dressing mechanism; 151. Mounting platform; 152. Connecting seat; 153. Guide rod; 154. Cap; 155. Pressure plate; 156. Spring sleeve; 157. Spring piece; 1571. Base plate; 1572. Pad layer; 1573. Reinforcing layer; 1574. Outer skin layer; 1575. Compression-resistant filler; 16. Connector; 17. Tool holder; 18. Blade. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides, for example Figure 1-3 The illustrated double-layer PCB edge trimming device includes a base 1, with support columns 2 evenly arranged sequentially on the surface of the base 1. A top plate 3 is provided on the top of each support column 2. A mounting bracket 4 is provided on the surface of the base 1, and the interior of the mounting bracket 4 is connected to a support plate 6 via a connecting spring 5. Slider blocks 7 are integrally formed on both sides of the support plate 6, and symmetrical grooves 8 are formed on the inner wall of the mounting bracket 4. The support plate 6 is slidably connected to the grooves 8 via the sliders 7, achieving a good protective effect.

[0021] A mounting base 9 is embedded in the center of the surface of the top plate 3. The mounting base 9 is connected and fixed to the fixed frame 12 by bolts and connectors 11. A hydraulic cylinder 13 is installed in the fixed frame 12. The hydraulic cylinder 13 passes through the top plate 3 through a piston rod 14 and is connected to a trimming mechanism 15.

[0022] The trimming mechanism 15 includes a mounting platform 151, a connecting seat 152, a guide rod 153, a cap 154, a pressure plate 155, and a spring sleeve 156. The connecting seat 152 is located at the center of the top surface of the mounting platform 151. The piston rod 14 is keyed to the connecting seat 152. Two guide rods 153 are slidably mounted on both sides of the mounting platform 151. The pressure plate 155 is bolted to the bottom of the guide rods 153. A connector 16 is located at the center of the bottom of the mounting platform 151. A tool holder 17 is bolted to the connector 16. A blade 18 is mounted on the tool holder 17.

[0023] A spring sleeve 156 is fitted onto the surface of the guide rod 153 between the mounting platform 151 and the pressure plate 155. The two sides of the spring sleeve 156 are fixed to the mounting platform 151 and the pressure plate 155 respectively. This provides support and exerts a certain force, ensuring smoother, more stable, and safer movement of the guide rod 153 when it is under pressure. A cap 154 ​​is provided at the top of the guide rod 153 to limit its movement and prevent it from slipping.

[0024] The surface of the pressure plate 155 is fitted with a spring sheet 157. The spring sheet 157 includes a base plate 1571, a protective layer 1572, a reinforcing layer 1573, an outer skin layer 1574, and a pressure-resistant filler 1575. The protective layer 1572 is an integrated structure made of rubber material, the reinforcing layer 1573 is an integrated structure made of aluminum sheet material, the outer skin layer 1574 is made of silicone material, and the pressure-resistant filler 1575 is filled with glass wool material. By setting the protective layer 1572, the overall protection effect is increased. Together with the reinforcing layer 1573 on the other side, the overall pressure and impact resistance effect is increased, providing stable protection. At the same time, together with the outer skin layer 1574, the surface friction is increased, improving the contact effect with the PCB board, thereby achieving a stable and good protection and positioning function. In practical use, the PCB board is placed on the surface of the support plate 6, and the piston rod 14 is driven down by the hydraulic cylinder 13, so that the spring pieces 157 at the bottom of the guide rods 153 on both sides are in contact with the PCB board. The support plate 6 will also slowly move down under pressure until it is completely stationary, thus completing the stable support of the PCB board. As the hydraulic cylinder 13 continues to work, the blade 18 is partially pressed down until it contacts the PCB surface and completes the cutting to achieve the trimming effect.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A double-layer PCB circuit board edge trimming device, comprising a base (1), characterized in that: The base (1) is provided with support columns (2) evenly arranged in sequence. The top of the support column (2) is provided with a top plate (3). The base (1) is provided with a mounting bracket (4). The interior of the mounting bracket (4) is connected to the support plate (6) through a connecting spring (5). A mounting base (9) is embedded in the center of the surface of the top plate (3). The mounting base (9) is connected and fixed to the fixed frame (12) by bolts and connecting parts (11). A hydraulic cylinder (13) is installed inside the fixed frame (12). The hydraulic cylinder (13) passes through the top plate (3) through the piston rod (14) and is connected to the trimming mechanism (15). The trimming mechanism (15) includes a mounting platform (151), a connecting seat (152), a guide rod (153), a cap (154), a pressure plate (155), and a spring sleeve (156). The mounting platform (151) has a connecting seat (152) at the center of its top surface. The piston rod (14) is keyed to the connecting seat (152). Two guide rods (153) are slidably mounted on both sides of the mounting platform (151). The bottom of the guide rod (153) is bolted with a pressure plate (155). The bottom center of the mounting platform (151) has a connecting piece (16). A blade holder (17) is bolted to the connecting piece (16). A blade (18) is mounted on the blade holder (17).

2. The double-layer PCB circuit board edge trimming device according to claim 1, characterized in that: Both sides of the support plate (6) are integrally formed with sliders (7), and the inner wall of the mounting bracket (4) is symmetrically provided with sliding grooves (8). The support plate (6) is slidably connected to the sliding grooves (8) through the sliders (7).

3. The edge trimming device for a double-layer PCB circuit board according to claim 1, characterized in that: The guide rod (153) has a spring sleeve (156) fitted on the surface between the mounting platform (151) and the pressure plate (155). The two sides of the spring sleeve (156) are fixed to the mounting platform (151) and the pressure plate (155) respectively.

4. The edge trimming device for a double-layer PCB circuit board according to claim 1, characterized in that: The top of the guide rod (153) is provided with a cap (154).

5. The double-layer PCB circuit board edge trimming device according to claim 1, characterized in that: The surface of the pressure plate (155) is fitted with a spring sheet (157), which includes a base plate (1571), a padding layer (1572), a reinforcing layer (1573), an outer skin layer (1574), and a pressure-resistant filler (1575).

6. The double-layer PCB circuit board edge trimming device according to claim 5, characterized in that: The padding layer (1572) is an integrated structure made of rubber material, the reinforcing layer (1573) is an integrated structure made of aluminum sheet material, the outer skin layer (1574) is made of silicone material, and the pressure-resistant filler (1575) is made of glass wool material.

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