Feeding device of PCB cutting machine

Abstract

The utility model discloses a feeding device of a PCB (printed circuit board) cutting machine, which belongs to the technical field of PCB processing and is technically characterized by comprising a cutting machine main body, two supports are symmetrically mounted on two sides of the cutting machine main body, a guide rod is mounted on the top surface of each support, and the guide rods are mounted on the guide rods. The first motor drives the lead screw mechanism to achieve accurate movement of the suction cup lifting handle, automatic grabbing, lifting and placing of plates are completed in cooperation with the hydraulic cylinder and the pneumatic adsorption device, manual intervention is greatly reduced, compared with a traditional manual feeding mode, the four supporting frames can be linked to move synchronously by rotating the rotating rods, and the working efficiency is greatly improved. According to the system, plate piles of different sizes can be rapidly adapted, the synergistic effect of a limiting frame, a positioning frame and a lifting supporting plate is combined, it is ensured that the plate piles are always kept in order and stacked, the supporting plate is provided with an independent second motor to drive a lead screw lifting mechanism, after top-layer plates are taken away, the system automatically lifts the plate piles, and the material taking height is kept constant.

Description

Technical Field

[0001] This utility model belongs to the field of PCB circuit board processing and feeding technology, specifically relating to a PCB circuit board cutting machine feeding device. Background Technology

[0002] Circuit boards are named as follows: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board (copper etching technology), etc. In the PCB manufacturing process, the cutting machine is the first processing equipment, responsible for cutting large-size copper-clad laminates (such as FR-4, aluminum substrate, flexible copper-clad laminate, etc.) into unit boards that meet the design requirements. The feeding device is a key component of the cutting machine, and its performance directly affects production efficiency, processing accuracy and board quality.

[0003] A search revealed Chinese patent CN221409262U, which discloses a circuit board cutting machine, including a protective housing. A support platform is fixedly connected to the inner side of the protective housing, and electric telescopic rods are fixedly connected to both the left and right ends of the protective housing. However, existing cutting machines basically rely on manual loading, and the position of the board needs to be adjusted after loading, which is inefficient. Utility Model Content

[0004] The purpose of this utility model is to provide a feeding device for a PCB circuit board cutting machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PCB circuit board cutting machine feeding device, comprising a cutting machine body, two supports symmetrically installed on both sides of the cutting machine body, a guide rod installed on the top surface of each support, a linkage block slidably connected to the surface of each guide rod, a first motor installed on the opposite side of each guide rod, a first lead screw fixedly connected to the output shaft of each first motor, the first lead screw being threadedly connected to the linkage block via a screw cylinder, a connecting frame provided above the two guide rods, the two ends of the connecting frame being fixedly connected to the two linkage blocks respectively, a hydraulic cylinder installed on the top surface of the connecting frame, the output shaft of the hydraulic cylinder penetrating the surface of the connecting frame, and a suction cup handle installed thereon.

[0006] Preferably, a positioning platform is provided on one side of the main body of the cutting machine between the two supports. Several support frames are uniformly fixedly connected to the top surface of the positioning platform. A receiving shell is fixedly connected to the opposite side of each support frame. Several support plates are uniformly arranged above the positioning platform. The support plates correspond to the support frames. A linkage plate is fixedly connected to the side of each support plate facing the support frame. The linkage plate is inserted into the receiving shell and slidably connected to it. A second motor is installed on the top surface of each receiving shell. A second lead screw is provided inside the receiving shell. The output shaft of the second motor passes through the surface of the receiving shell and is fixedly connected to the second lead screw through a coupling. The second lead screw is threadedly connected to the linkage plate through a threaded cylinder.

[0007] Preferably, a limiting frame is fixedly connected to the surfaces of the two receiving shells near the main body of the cutting machine, and the height of the limiting frame is lower than the height of the support frame.

[0008] Preferably, the surfaces of the two support frames on the side away from the main body of the cutting machine are fixedly connected to positioning shafts, and the surfaces of the positioning shafts are rotatably connected to positioning frames via sleeves.

[0009] Preferably, the sleeve has a sliding connection to a plug rod, which is inserted into the positioning shaft.

[0010] Preferably, a fixed housing is fixedly connected inside the positioning platform. A first bevel gear is rotatably connected inside the fixed housing via bearings. Second bevel gears are uniformly meshed with the surfaces of the first bevel gears. A third lead screw is fixedly connected to the end of each second bevel gear away from the first bevel gear. A slider is threadedly connected to the surface of the third lead screw via a threaded cylinder. The slider is fixedly connected to the corresponding support frame. A connecting shaft is fixedly connected to the bottom surface of the first bevel gear. A first sprocket is provided below the fixed housing. The connecting shaft passes through the bottom surface of the fixed housing and is fixedly connected to the first sprocket. A rotating rod is rotatably connected to one side of the positioning platform. A second sprocket is fixedly connected to the bottom end of the rotating rod. The first sprocket and the second sprocket are meshed together via a chain.

[0011] Preferably, the fixing shell has an X-shaped structure, and each end of the fixing shell corresponds to the support frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model achieves precise movement of the suction cup handle by driving the lead screw mechanism with the first motor, and completes the automatic gripping, lifting and placement of the board material with the help of the hydraulic cylinder and the pneumatic adsorption device, which greatly reduces manual intervention. Compared with the traditional manual feeding method, this device can achieve continuous, fast and accurate feeding operation, significantly improving the overall production efficiency of the PCB board cutting machine, and is especially suitable for mass production scenarios.

[0014] 2. This utility model adopts a support frame design with a bevel gear transmission sprocket mechanism to drive four-way synchronous adjustment. By rotating the rotating rod, the four support frames can be moved synchronously, which can quickly adapt to the stack of plates of different sizes. Combined with the synergistic effect of the limiting frame, positioning frame and lifting support plate, it ensures that the stack of plates is always neatly stacked, so that the suction cup handle can pick up the same position every time, avoiding manual adjustment and improving the feeding accuracy and stability.

[0015] 3. This utility model features a support plate and an independent second motor-driven screw lifting mechanism. After the top layer of material is removed, the system automatically raises the material stack, maintaining a constant material removal height. This design not only saves time on manual replenishment but also ensures a fixed operating path for the suction cup handle, further shortening the cycle time. The low-height design of the limiting frame optimizes the translation path, reduces idle movement, and achieves efficient continuous operation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the guide rod and linkage block structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the positioning platform and fixing shell structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the first sprocket and chain structure of this utility model;

[0020] Figure 5 This utility model Figure 3 Enlarged view of part A.

[0021] In the diagram: 1. Main body of the cutting machine; 2. Guide rod; 3. Linkage block; 4. First motor; 5. First lead screw; 6. Connecting frame; 7. Hydraulic cylinder; 8. Suction cup handle; 9. Bracket; 10. Positioning table; 11. Fixed shell; 12. First bevel gear; 13. Second bevel gear; 14. Third lead screw; 15. Support plate; 16. First sprocket; 17. Chain; 18. Second sprocket; 19. Rotating rod; 20. Support frame; 21. Receiving shell; 22. Second motor; 23. Limiting frame; 24. Positioning frame; 25. Insert rod. 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.

[0023] Please see Figures 1-5 This utility model provides a PCB circuit board cutting machine feeding device, including a cutting machine body 1. Two supports 9 are symmetrically installed on both sides of the cutting machine body 1. A guide rod 2 is installed on the top surface of each support 9. A linkage block 3 is slidably connected to the surface of each guide rod 2. A first motor 4 is installed on the opposite side of each guide rod 2. The output shaft of the first motor 4 is fixedly connected to a first lead screw 5. The first lead screw 5 is threadedly connected to the linkage block 3 through a screw cylinder. A connecting frame 6 is set above the two guide rods 2. The two ends of the connecting frame 6 are fixedly connected to the two linkage blocks 3 respectively. A hydraulic cylinder 7 is installed on the top surface of the connecting frame 6. The output shaft of the hydraulic cylinder 7 passes through the surface of the connecting frame 6 and is equipped with a suction cup handle 8. When it is necessary to feed the cutting machine body 1, the first motor 4 is connected to an external power source and started. The linkage block 3 will move on the surface of the guide rod 2 due to the rotation of the first lead screw 5. The surface slides, thereby causing the hydraulic cylinder 7 to move the suction cup handle 8 through the connecting frame 6 until the suction cup handle 8 moves above the sheet material. Then, the hydraulic cylinder 7 is connected to an external power source and started. The hydraulic cylinder 7 will move the suction cup handle 8 towards the sheet material until the suction cup of the suction cup handle 8 is in contact with the top surface of the sheet material. Then, the external air pump is started, and the suction cup handle 8 will pick up the sheet material. Then, the hydraulic cylinder 7 will pull the suction cup handle 8 upward, and the sheet material will move along with it. Then, the first lead screw 5 will move the hydraulic cylinder 7 towards the main body 1 of the cutting machine until the sheet material is above the main body 1 of the cutting machine. Then, the suction cup handle 8 will move the sheet material towards the main body 1 of the cutting machine until the sheet material is in contact with the top surface of the main body 1 of the cutting machine. Then, the suction cup handle 8 will release the sheet material, thus realizing the feeding of the sheet material, reducing manual intervention and increasing feeding efficiency.

[0024] It should be noted that the suction cup handle 8 includes a suction cup, a support base, an air pipe, and a pressure relief valve, which are existing technologies. Those skilled in the art can set them according to actual needs, and they will not be described in detail here.

[0025] It should be noted that the hydraulic cylinder used in this utility model is an actuator in a hydraulic system, which achieves the telescopic function by cooperating with the hydraulic system. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0026] In this embodiment, a positioning platform 10 is provided on one side of the main body 1 of the cutting machine, between two supports 9. Several support frames 20 are uniformly fixedly connected to the top surface of the positioning platform 10. A receiving shell 21 is fixedly connected to the opposite side of each support frame 20. Several support plates 15 are uniformly arranged above the positioning platform 10, corresponding to the support frames 20. A linkage plate is fixedly connected to the side of each support plate 15 facing the support frame 20. The linkage plate is inserted into the receiving shell 21 and slidably connected to it. A second motor 22 is installed on the top surface of each receiving shell 21. A second lead screw is provided inside the receiving shell 21. The output shaft of the second motor 22 passes through the surface of the receiving shell 21 and is fixedly connected to the second lead screw via a coupling. The second lead screw is threadedly connected to the linkage plate via a threaded cylinder. Limit frames 2 are fixedly connected to the surfaces of the two receiving shells 21 closest to the main body 1 of the cutting machine. 3. The height of the limiting frame 23 is lower than the height of the support frame 20. The surfaces of the two support frames 20 on the side away from the main body 1 of the feeder are fixedly connected to the positioning shaft. The surface of the positioning shaft is rotatably connected to the positioning frame 24 through the sleeve. The inside of the sleeve is slidably connected to the insertion rod 25. The insertion rod 25 is inserted into the inside of the positioning shaft. In order to limit the position of the sheet before feeding, so that the suction cup handle 8 is in the center of the sheet each time it picks up the material, the insertion rod 25 is pulled out from the inside of the sleeve to release the limitation on the positioning frame 24. Then the positioning frame 24 is rotated around the positioning shaft until it is rotated to more than 90 degrees. Then the sheet can be stacked on the surface of the support plate 15. After the placement is completed, the positioning frame 24 is rotated back to its original position. The support frame 20, the limiting frame 23 and the positioning frame 24 are used to limit the sheet, which avoids the sheet being stacked irregularly before being picked up, so that the position needs to be adjusted each time it is picked up.

[0027] When the suction cup handle 8 removes the top sheet, in order to speed up the work and ensure that the position of each suction is the same, the second motor 22 is connected to an external power source. The linkage plate will drive the support plate 15 to move upward due to the rotation of the second lead screw. As a result, when there is a missing sheet on the top surface of the sheet pile, the sheet pile will move upward to make up for it, so that the suction cup handle 8 can pick up the same position each time.

[0028] The lower height of the limiting frame 23 is to allow the sheet metal to move directly towards the main body 1 of the cutting machine after being picked up, reducing the movement process of the suction cup handle 8 and increasing efficiency.

[0029] In this embodiment, a fixed housing 11 is fixedly connected inside the positioning platform 10. A first bevel gear 12 is rotatably connected inside the fixed housing 11 via bearings. Four second bevel gears 13 are evenly meshed on the surface of the first bevel gear 12. A third lead screw 14 is fixedly connected to the end of each second bevel gear 13 away from the first bevel gear 12. A slider is threaded onto the surface of the third lead screw 14 via a threaded cylinder. The slider and a corresponding support frame 20 are fixedly connected. A connecting shaft is fixedly connected to the bottom surface of the first bevel gear 12, and a first sprocket 16 is provided below the fixed housing 11. The connecting shaft passes through the bottom surface of the fixed housing 11 and is fixedly connected to the first sprocket 16. A rotating rod 19 is rotatably connected to one side of the positioning platform 10, and a third lead screw 14 is fixedly connected to the bottom end of the rotating rod 19. The second sprocket 18 and the first sprocket 16 are connected by a chain 17. The fixed shell 11 has an X-shaped structure, and each end of the fixed shell 11 corresponds to the support frame 20. In order to clamp plates of different sizes within a certain range, force is applied to the rotating rod 19 to make it rotate, so that the second sprocket 18 drives the first sprocket 16 to rotate through the chain 17. The first bevel gear 12 will be rotated, so that the four second bevel gears 13 that mesh with it drive the third lead screw 14 to rotate inside the fixed shell 11. The slider will be driven by the rotation of the third lead screw 14 to move the four support frames 20 closer to the center of the positioning table 10, thereby changing the spacing of the four support frames 20 and realizing the limitation of plates of different sizes within a certain range.

[0030] It should be noted that the threaded cylinder used in this invention has an annular groove axially arranged on its inner wall. A nylon 66 damping ring with a Shore hardness of 85A is embedded in the groove. The continuous axial clamping force generated by its elastic deformation forms a helical angle interference fit with the screw surface at 15°-20°. When the threaded pair is subjected to axial vibration load, the nylon insert can generate a maximum elastic compression of 0.3mm, which increases the friction coefficient between the thread contact surfaces from 0.15 to 0.68. According to the ASTM D1894 standard test, this effectively suppresses the loosening displacement caused by thread springback.

[0031] It should be noted that the motor and electric push rod used in this utility model are existing technologies, and those skilled in the art can set them according to actual needs, which will not be elaborated here.

[0032] The use of this utility model involves the following steps:

[0033] S1: When it is necessary to feed material into the main body 1 of the cutting machine, the first motor 4 is connected to an external power source and started. The linkage block 3 will slide on the surface of the guide rod 2 due to the rotation of the first lead screw 5, thereby causing the hydraulic cylinder 7 to move the suction cup handle 8 through the connecting frame 6. When the suction cup handle 8 moves above the sheet material, the hydraulic cylinder 7 is connected to an external power source and started. The hydraulic cylinder 7 will move the suction cup handle 8 towards the sheet material until the suction cup of the suction cup handle 8 is in contact with the top surface of the sheet material. Then the external air pump is started. The suction cup handle 8 will adsorb the sheet material, and then the hydraulic cylinder 7 will pull the suction cup handle 8 upward, and the sheet material will move along with it. Then, the first lead screw 5 will move the hydraulic cylinder 7 towards the main body 1 of the cutting machine until the sheet material is above the main body 1 of the cutting machine. Then, the suction cup handle 8 will move the sheet material towards the main body 1 of the cutting machine until the sheet material contacts the top surface of the main body 1 of the cutting machine. Then, the suction cup handle 8 will release the sheet material, thus realizing the feeding of the sheet material, reducing manual intervention and increasing feeding efficiency.

[0034] S2: In order to limit the position of the board before loading, so that the suction cup handle 8 is always in the center of the board when picking up the board, pull out the insert 25 from the inside of the sleeve to release the limit on the positioning frame 24. Then rotate the positioning frame 24 around the positioning axis until it rotates to more than 90 degrees. Then the board can be stacked on the surface of the support plate 15. After the placement is completed, rotate the positioning frame 24 back to its original position. The support frame 20, the limiting frame 23 and the positioning frame 24 limit the board, avoiding the board being stacked irregularly before being picked up, which would require adjusting the position each time it is picked up.

[0035] S3: When the suction cup handle 8 removes the top plate, in order to speed up the work efficiency and ensure that the position of each suction is the same, the second motor 22 is connected to an external power source. The linkage plate will drive the support plate 15 to move upward due to the rotation of the second lead screw. As a result, when there is a missing piece on the top surface of the plate stack, the plate stack will move upward to make up for it, so that the suction cup handle 8 can pick up the same position each time.

[0036] S4: In order to clamp plates of different sizes within a certain range, force is applied to the rotating rod 19 to make it rotate, so that the second sprocket 18 drives the first sprocket 16 to rotate through the chain 17. The first bevel gear 12 will be rotated, so that the four second bevel gears 13 meshing with it drive the third lead screw 14 to rotate inside the fixed shell 11. The slider will be driven by the rotation of the third lead screw 14 to move the four support frames 20 closer to the center of the positioning table 10, thereby changing the spacing of the four support frames 20 and realizing the limitation of plates of different sizes within a certain range.

[0037] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0038] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding device of a PCB circuit board cutting machine, comprising a cutting machine main body (1), characterized in that: Two brackets (9) are symmetrically installed on both sides of the main body (1) of the cutting machine. A guide rod (2) is installed on the top surface of each bracket (9). A linkage block (3) is slidably connected to the surface of each guide rod (2). A first motor (4) is installed on the opposite side of each guide rod (2). A first lead screw (5) is fixedly connected to the output shaft of the first motor (4). The first lead screw (5) is threadedly connected to the linkage block (3) through a screw cylinder. A connecting frame (6) is set above the two guide rods (2). The two ends of the connecting frame (6) are fixedly connected to the two linkage blocks (3) respectively. A hydraulic cylinder (7) is installed on the top surface of the connecting frame (6). The output shaft of the hydraulic cylinder (7) passes through the surface of the connecting frame (6) and is equipped with a suction cup handle (8).

2. The PCB circuit board slitter infeed apparatus of claim 1, wherein: A positioning platform (10) is provided on one side of the main body (1) of the cutting machine, between the two supports (9). Several support frames (20) are uniformly fixedly connected to the top surface of the positioning platform (10). A receiving shell (21) is fixedly connected to the opposite side of each support frame (20). Several support plates (15) are uniformly arranged above the positioning platform (10). The support plates (15) correspond to the support frames (20). A linkage plate is fixedly connected to the side of the support plate (15) facing the support frame (20). The linkage plate is inserted into the inside of the receiving shell (21) and slidably connected to it. A second motor (22) is installed on the top surface of each receiving shell (21). A second lead screw is provided inside the receiving shell (21). The output shaft of the second motor (22) passes through the surface of the receiving shell (21) and is fixedly connected to the second lead screw through a coupling. The second lead screw is threadedly connected to the linkage plate through a threaded cylinder.

3. The PCB circuit board slitter infeed apparatus of claim 2, wherein: A limiting frame (23) is fixedly connected to the surface of two receiving shells (21) near the side of the main body (1) of the cutting machine. The height of the limiting frame (23) is lower than the height of the support frame (20).

4. The PCB circuit board slitter infeed apparatus of claim 2, wherein: Positioning shafts are fixedly connected to the surfaces of two support frames (20) on the side away from the main body (1) of the cutting machine, and positioning frames (24) are rotatably connected to the surfaces of the positioning shafts via sleeves.

5. The PCB circuit board slitter infeed apparatus of claim 4, wherein: The sleeve has a sliding connection to a rod (25), which is inserted into the positioning shaft.

6. The PCB circuit board slitter infeed apparatus of claim 2, wherein: The positioning platform (10) is internally fixedly connected to a fixed shell (11). A first bevel gear (12) is rotatably connected to the inside of the fixed shell (11) via bearings. Second bevel gears (13) are uniformly meshed with the surface of the first bevel gear (12). A third lead screw (14) is fixedly connected to the end of each second bevel gear (13) away from the first bevel gear (12). A slider is threaded onto the surface of the third lead screw (14) via a threaded cylinder. The slider and the corresponding support frame (20) The first bevel gear (12) is fixedly connected to a connecting shaft on its bottom surface, and a first sprocket (16) is provided below the fixed housing (11). The connecting shaft passes through the bottom surface of the fixed housing (11) and is fixedly connected to the first sprocket (16). A rotating rod (19) is rotatably connected to one side of the positioning platform (10), and a second sprocket (18) is fixedly connected to the bottom end of the rotating rod (19). The first sprocket (16) is meshed with the second sprocket (18) through a chain (17).

7. The PCB circuit board slitter infeed apparatus of claim 6, wherein: The fixed shell (11) has an X-shaped structure, and each end of the fixed shell (11) corresponds to the support frame (20).

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