Edge grinding device for laminated multi-layer circuit board

Abstract

The utility model provides a multilayer circuit board after-press-fit edging device which comprises a bottom plate, two bases are symmetrically arranged on the upper surface of the bottom plate in a sliding connection mode, an equipment cavity is formed in one side of each base, a driving motor is arranged in each equipment cavity, an edging roller is arranged at the output end of each driving motor, and the edging rollers are arranged on the lower surface of the bottom plate. Two feeding plate bodies are symmetrically arranged on the upper surfaces of the two bases, side baffles are fixedly connected to the corresponding sides of the two feeding plate bodies, a plurality of feeding rolling shafts are evenly distributed on one sides of the upper surfaces of the two feeding plate bodies at equal intervals, and the tops of edge grinding rollers penetrate through an equipment cavity and extend to the tops of the feeding plate bodies. The edge grinding device comprises a base, two sets of mounting shells are symmetrically arranged on the two sides of the base, electric push rods are arranged in the mounting shells, the output ends of the electric push rods are fixedly connected with supports, the tops of the supports penetrate and extend to the position above a feeding plate body, and the two sides of a circuit board needing to be subjected to edge grinding are pressed through pressing shafts.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, specifically to a device for edge grinding after lamination of multilayer circuit boards. Background Technology

[0002] A circuit board, also known as a printed circuit board or flexible circuit board, is a type of printed circuit board made of polyimide or polyester film as the substrate. It is highly reliable and extremely flexible, and also features high wiring density, light weight, thinness, and good bending properties. During the manufacturing process of the circuit board, there may be defects on the sides. In order to ensure the cleanliness of the circuit board, the excess parts on the sides of the circuit board will be polished to improve the flatness of the sides of the circuit board.

[0003] The patent application CN221871372U discloses a grinding device for PCB circuit board processing, which includes a processing table. The processing table has a first slide groove and a second slide groove inside. A telescopic positioning rod is fixedly connected to the lower part of the processing table on one side of the lower end of the first slide groove. A spring positioning pad is fixedly connected to the end of the telescopic positioning rod. A first screw is threadedly connected to the inside of the spring positioning pad. A first rotating disk is fixedly connected to one side of the first screw. A spring is fixedly connected to the other side of the spring positioning pad. By rotating the first screw, the position of the spring positioning pad is adjusted, which in turn pushes the grinding pad to one side of the processing table.

[0004] However, the above-mentioned device still has the following problems during implementation:

[0005] 1. Existing PCB processing edge grinding devices are operated manually with hand-held edge grinding tools, which is not only extremely labor-intensive, but also difficult to guarantee the precision and consistency of edge grinding due to the instability of manual operation, resulting in inconsistent product quality. On the other hand, some automated edge grinding equipment has a complex structure, is difficult to maintain, has poor positioning effect, and is prone to cutting deviations during the edge grinding process, which can damage the PCB.

[0006] 2. Existing edge grinding equipment has a simple structure, making it difficult to accurately position the circuit board, resulting in poor edge grinding effect. It cannot be flexibly adjusted according to circuit boards of different thicknesses and sizes, and has poor adaptability to multilayer circuit boards of different specifications and sizes. It often requires frequent changes of tooling fixtures, which seriously affects production efficiency. Utility Model Content

[0007] The purpose of this invention is to provide a grinding device for multilayer circuit boards after lamination, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A multilayer circuit board edge grinding device after lamination includes a base plate. Two sets of bases are symmetrically and slidably connected on the upper surface of the base plate. Each base has a device cavity on one side. A drive motor is installed inside the device cavity. An edge grinding roller is installed at the output end of the drive motor. Two sets of feeding plates are symmetrically arranged on the upper surface of the two sets of bases. Side baffles are fixedly connected to the corresponding sides of the two sets of feeding plates. Multiple sets of feeding rollers are evenly distributed and equidistantly arranged on one side of the upper surface of the two sets of feeding plates. The top of the edge grinding roller penetrates the device cavity and extends to the top of the feeding plate.

[0010] Two sets of mounting shells are symmetrically arranged on both sides of the base. An electric push rod is installed inside the mounting shell. The output end of the electric push rod is fixedly connected to a bracket. The top of the bracket extends through to the upper part of the feeding plate. A pressure shaft is provided on the inner side of both sets of brackets. The pressure shaft presses the two sides of the circuit board that needs to be edged.

[0011] Preferably, an installation groove is provided at the center of the upper surface of the base plate, and two sets of sliding platforms are slidably connected inside the installation groove. The top surfaces of the two sets of sliding platforms are respectively fixedly connected to the center of the bottom surfaces of the two sets of bases. Each bottom surface of the base has a slot at the center, and the top surfaces of the sliding platforms are fixedly connected to the inside of the slot.

[0012] Preferably, a hydraulic push rod is fixedly connected to one side of one set of slides, and the output shaft end of the hydraulic push rod is fixedly connected to the side of another set of slides. The hydraulic push rod facilitates the adjustment of the two sets of slides to be closer or farther apart.

[0013] Preferably, a roller groove is provided at the top of the equipment cavity, the grinding roller is rotatably connected to the inside of the roller groove, and a through groove is provided on one side of the feeding plate at the position above the equipment cavity, the through groove being matched with the roller groove.

[0014] Preferably, the bottom surface of the bracket is symmetrically provided with connecting rods, the bottom end of the connecting rod is fixedly connected to a fixing plate, and the pressing shaft is rotatably connected to one side of the bottom surface of the fixing plate through a connecting ear plate.

[0015] Preferably, a connecting plate is provided on the other side of the bottom surface of the fixed plate, a gap is provided between the pressing shaft and the connecting plate, the grinding roller rotates inside the gap, and a telescopic component is provided between the two sets of connecting plates.

[0016] Preferably, the telescopic assembly includes two sets of fixed rods and one set of sliding rods, with one end of each of the two sets of fixed rods fixedly connected to one side of the connecting plate, and the sliding rod slidably connected between the two sets of fixed rods;

[0017] Both sets of fixed rods have sliding grooves on opposite sides. The two ends of the sliding rod slide in the sliding grooves respectively. Two sets of sliding blocks are symmetrically fixedly connected to the two ends of the sliding rod. The sliding blocks are in sliding clearance fit with the sliding grooves.

[0018] Compared with existing technologies, the beneficial effects of this utility model are:

[0019] 1. The equipment cavity is connected by a base, and the grinding roller is controlled by the drive mechanism inside the equipment cavity. The circuit board is automatically fed to the grinding roller by the feeding roller for grinding. The operation is convenient and the structure is simple, which increases the accuracy of grinding to a certain extent.

[0020] 2. The base plate is equipped with a sliding table, which allows the two sets of bases to move closer or further apart. The adjustment is matched to the specifications of the multi-layer circuit boards to be cut, enabling efficient and precise edge grinding of circuit boards of different sizes and specifications, thus improving product quality and production efficiency.

[0021] 3. The bracket is connected by an electric push rod, and the pressure shaft inside the bracket facilitates pressing the two sides of the circuit board. The height of the bracket can be adjusted according to the thickness of the circuit board to meet the edge grinding requirements of multi-layer circuit boards of various thicknesses. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main view structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the main structure of the base part of this utility model;

[0024] Figure 3 This is an exploded structural diagram of the base plate of this utility model;

[0025] Figure 4 This is a schematic diagram of the main structure of the support component in this utility model.

[0026] In the diagram: 1. Base plate; 101. Mounting groove; 2. Base; 3. Equipment cavity; 4. Grinding roller; 5. Feeding plate; 6. Side baffle; 7. Feeding roller; 8. Mounting shell; 9. Bracket; 10. Pressing shaft; 11. Slide table; 12. Hydraulic push rod; 13. Roller groove; 14. Through groove; 15. Connecting rod; 16. Fixing plate; 17. Connecting plate; 18. Fixing rod; 19. Sliding rod; 20. Sliding groove; 21. Sliding block. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Please see Figures 1-4 This utility model provides a technical solution:

[0029] Example 1:

[0030] A multilayer circuit board edge grinding device after lamination includes a base plate 1. Two sets of bases 2 are symmetrically and slidably connected on the upper surface of the base plate 1. Each base 2 has a device cavity 3 on one side. A drive motor is installed inside the device cavity 3. An edge grinding roller 4 is installed at the output end of the drive motor. Two sets of feeding plates 5 are symmetrically arranged on the upper surface of the two sets of bases 2. Side baffles 6 are fixedly connected to the corresponding sides of the two sets of feeding plates 5. Multiple sets of feeding rollers 7 are evenly distributed and equidistantly arranged on one side of the upper surface of the two sets of feeding plates 5. The top of the edge grinding roller 4 penetrates through the device cavity 3 and extends to the top of the feeding plate 5. The feeding rollers 7 enable the circuit board to be automatically fed to the edge grinding roller 4 for edge grinding, thereby increasing the accuracy of edge grinding to a certain extent.

[0031] Two sets of mounting shells 8 are symmetrically arranged on both sides of the base 2. An electric push rod is installed inside the mounting shell 8. The output end of the electric push rod is fixedly connected to the bracket 9. The top of the bracket 9 extends through to the upper position of the feeding plate body 5. A pressure shaft 10 is provided on the inner side of both sets of brackets 9. The pressure shaft 10 is used to press the two sides of the circuit board that needs to be edged. The electric push rod is connected to the bracket 9. The pressure shaft 10 on the inner side of the bracket 9 is used to press the two sides of the circuit board. The height of the bracket 9 can be adjusted according to the thickness of the circuit board.

[0032] A mounting groove 101 is provided in the center of the upper surface of the base plate 1. Two sets of slides 11 are slidably connected inside the mounting groove 101. The top surfaces of the two sets of slides 11 are fixedly connected to the center of the bottom surfaces of the two sets of bases 2. A slot is provided in the center of the bottom surface of each base 2, and the top surfaces of the slides 11 are fixedly connected to the inside of the slot.

[0033] One side of one set of slides 11 is fixedly connected to a hydraulic push rod 12. The output shaft end of the hydraulic push rod 12 is fixedly connected to the side of another set of slides 11. The hydraulic push rod 12 facilitates the adjustment of the two sets of slides 11 to move closer or further apart. The slides 11 are installed on the base plate 1. The slides 11 are driven to make the two sets of bases 2 move closer or further apart. The multi-layer circuit board with the edge grinding needs to be matched and adjusted.

[0034] The top of the equipment cavity 3 is provided with a roller groove 13, and the grinding roller 4 is rotatably connected to the inside of the roller groove 13. A through groove 14 is provided on one side of the feeding plate 5 above the equipment cavity 3, and the through groove 14 is matched with the roller groove 13.

[0035] Example 2:

[0036] In this embodiment, the bracket 9 of Embodiment 1 is described in detail. Connecting rods 15 are symmetrically arranged on the bottom surface of the bracket 9. The bottom end of the connecting rod 15 is fixedly connected to a fixing plate 16. The pressing shaft 10 is rotatably connected to one side of the bottom surface of the fixing plate 16 through a connecting ear plate. A connecting plate body 17 is arranged on the other side of the bottom surface of the fixing plate 16. A gap is provided between the pressing shaft 10 and the connecting plate body 17. The grinding roller 4 rotates inside the gap. A telescopic component is provided between the two sets of connecting plate bodies 17.

[0037] The telescopic assembly includes two sets of fixed rods 18 and one set of sliding rods 19. One end of each of the two sets of fixed rods 18 is fixedly connected to one side of the connecting plate 17. The sliding rod 19 is slidably connected between the two sets of fixed rods 18. Each of the two sets of fixed rods 18 has a sliding groove 20 on its opposite side. Both ends of the sliding rod 19 slide within the sliding groove 20. Two sets of sliding blocks 21 are symmetrically fixedly connected to both ends of the sliding rod 19. The sliding blocks 21 and the sliding groove 20 are in sliding clearance fit. When the two sets of bases 2 are adjusted to be closer or farther apart, the telescopic assembly provides further stable connection and support.

[0038] Working principle: During use, the device is connected to the equipment cavity 3 through the base 2. The drive mechanism inside the equipment cavity 3 controls the edge grinding roller 4 to perform edge grinding. The feeding roller 7 automatically feeds the circuit board to the edge grinding roller 4 for edge grinding.

[0039] The slide table 11 is installed on the base plate 1. The slide table 11 can be driven to move the two sets of bases 2 closer or further apart. The adjustment can be matched to the specifications of the multi-layer circuit board to be edged, so as to achieve efficient and precise edge grinding of circuit boards of different specifications and sizes, thereby improving product quality and production efficiency.

[0040] The bracket 9 is connected by an electric push rod, and the pressure shaft 10 inside the bracket 9 can easily press the two sides of the circuit board. The height of the bracket 9 can be adjusted according to the thickness of the circuit board to meet the edge grinding requirements of circuit boards of various thicknesses.

[0041] It should be noted that the grinding roller 4 and the hydraulic push rod 12 are existing devices or equipment, or devices or equipment that can be implemented by existing technology. Their power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.

[0042] Although embodiments of the present utility 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 utility, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multilayer circuit board edge grinding device after lamination, comprising a base plate (1), characterized in that: Two sets of bases (2) are symmetrically and slidably connected on the upper surface of the base plate (1). Each base (2) has a device cavity (3) on one side. A drive motor is installed inside the device cavity (3). A grinding roller (4) is installed at the output end of the drive motor. Two sets of feeding plates (5) are symmetrically arranged on the upper surface of the two sets of bases (2). Side baffles (6) are fixedly connected to the corresponding sides of the two sets of feeding plates (5). Multiple sets of feeding rollers (7) are evenly distributed and equidistantly arranged on one side of the upper surface of the two sets of feeding plates (5). The top of the grinding roller (4) penetrates the device cavity (3) and extends to the top of the feeding plate (5). Two sets of mounting shells (8) are symmetrically arranged on both sides of the base (2). An electric push rod is provided inside the mounting shell (8). The output end of the electric push rod is fixedly connected to a bracket (9). The top of the bracket (9) extends through to the upper position of the feeding plate (5). A pressure shaft (10) is provided on the inner side of both sets of brackets (9). The pressure shaft (10) presses the two sides of the circuit board that needs to be edged.

2. The multilayer circuit board edge grinding device after lamination according to claim 1, characterized in that: The base plate (1) has an installation groove (101) at the center of its upper surface. Two sets of slides (11) are slidably connected inside the installation groove (101). The top surfaces of the two sets of slides (11) are fixedly connected to the bottom surfaces of the two sets of bases (2) at the center. The bottom surfaces of the bases (2) are all provided with slots at the center. The top surfaces of the slides (11) are all fixedly connected to the inside of the slots.

3. The multilayer circuit board edge grinding device after lamination according to claim 2, characterized in that: One side of one set of slides (11) is fixedly connected to a hydraulic push rod (12), and the output shaft end of the hydraulic push rod (12) is fixedly connected to the side of another set of slides (11). The hydraulic push rod (12) facilitates the adjustment of the two sets of slides (11) to be closer or farther apart.

4. The multilayer circuit board edge grinding device after lamination according to claim 1, characterized in that: The top of the equipment cavity (3) is provided with a roller groove (13), the grinding roller (4) is rotatably connected to the inside of the roller groove (13), and a through groove (14) is provided on one side of the feeding plate (5) above the equipment cavity (3), and the through groove (14) is matched with the roller groove (13).

5. The multilayer circuit board edge grinding device after lamination according to claim 1, characterized in that: The bracket (9) is symmetrically provided with connecting rods (15) on the bottom surface. The bottom end of the connecting rod (15) is fixedly connected to a fixing plate (16). The pressing shaft (10) is rotatably connected to one side of the bottom surface of the fixing plate (16) through the connecting ear plate.

6. The multilayer circuit board edge grinding device after lamination according to claim 5, characterized in that: A connecting plate (17) is provided on the other side of the bottom surface of the fixed plate (16). A gap is provided between the pressing shaft (10) and the connecting plate (17). The grinding roller (4) rotates inside the gap. A telescopic component is provided between the two sets of connecting plates (17).

7. The multilayer circuit board edge grinding device after lamination according to claim 6, characterized in that: The telescopic assembly includes two sets of fixed rods (18) and one set of sliding rods (19). One end of each of the two sets of fixed rods (18) is fixedly connected to one side of the connecting plate (17), and the sliding rod (19) is slidably connected between the two sets of fixed rods (18). Both sets of fixed rods (18) have sliding slots (20) on opposite sides. The two ends of the sliding rod (19) slide in the sliding slots (20) respectively. Two sets of sliding blocks (21) are symmetrically fixedly connected to the two ends of the sliding rod (19). The sliding blocks (21) and the sliding slots (20) are in sliding clearance fit.

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