A PCB board blank cutting and positioning component and a blank cutting machine

Abstract

This utility model discloses a PCB board blank cutting and positioning component and a blank cutting machine, relating to the technical field of PCB board cutting production equipment. The PCB board blank cutting and positioning component includes: a worktable, a first positioning component, a second positioning component, a cutting guide groove, and a limiting component. The worktable includes a working area and hollowed-out grooves disposed on both sides of the working area; the first positioning component passes through the hollowed-out groove on one side of the working area and has a first pressing block disposed horizontally towards the working area; the second positioning component passes through the hollowed-out groove on the other side of the working area and has a second pressing block disposed vertically towards the worktable. The cutting guide groove is located on the worktable, wherein a lifting pressure strip is also disposed on one side of the cutting guide groove; the limiting component is arranged around the periphery of the working area. By adopting the technology provided by this utility model, the stability of the cutting process can be improved and burrs can be reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of PCB board cutting production equipment, specifically to a PCB board blank cutting and positioning component and a blank cutting machine. Background Technology

[0002] When a PCB board blank cutting machine cuts, the PCB board is prone to vibration due to the cutting action of the rotating cutting blade and the operation of the motor, which can lead to deviations in the subsequent cutting dimensions. Although pressure plates are now set on one side of the rotating cutting blade to reduce PCB board vibration, low-frequency vibration still exists, resulting in more burrs on the edges of the cut PCB board.

[0003] As shown in the PCB board raw material cutting machine disclosed in Chinese utility model document (CN208497090U), a rear positioning frame is installed at the rear end of the cutting machine body, and the first side positioning plate and the second side positioning plate are combined to position the PCB board to be cut. At the same time, a pressure plate is set to lift and fix the PCB board. However, when using a rotary cutting knife (milling cutter) for cutting, the rotary cutting knife vibrates a lot during the cutting process. Even under the pressure of the pressure plate, there is still a large low-frequency vibration, which makes it easy for the rotary cutting knife to produce burrs during cutting. Utility Model Content

[0004] This invention provides a PCB board blank cutting and positioning component and a blank cutting machine to solve the problem of burrs easily appearing during cutting by the rotary cutting blade in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention provides a PCB board blank cutting and positioning component, which includes: a worktable, a first positioning component, a second positioning component, a cutting guide groove, and a limiting component.

[0006] The workbench includes a working area and perforated slots on both sides of the working area; a first positioning component passes through the perforated slot on one side of the working area and has a first pressing block arranged horizontally toward the working area; a second positioning component passes through the perforated slot on the other side of the working area and has a second pressing block arranged vertically toward the workbench. A cutting guide groove is located on the workbench, and a lifting pressure strip is also provided on one side of the cutting guide groove; the limiting component is arranged around the perimeter of the working area.

[0007] The beneficial effects of the technical solution provided by this utility model compared to the prior art are as follows:

[0008] The first top pressure block of the first positioning component presses against the PCB board in the horizontal direction, and the second top pressure block of the second positioning component presses against the PCB board in the vertical direction, so as to achieve simultaneous pressure in the vertical and horizontal directions. Combined with the limiting component to limit the PCB board, a three-dimensional constraint force field is formed, which improves the stability of the cutting process and directly and effectively suppresses the vibration and slight displacement of the board caused by cutting vibration.

[0009] Compared to current PCB cutting methods that only limit movement around the edges and use long pressure bars, the above structure provides composite positioning and limiting in any direction of the PCB board, ensuring that the PCB board is less prone to vibration and displacement during cutting. This effectively reduces burrs generated during cutting. Furthermore, the worktable is equipped with cutting guide grooves and lifting pressure bars located on one side of the cutting guide grooves, ensuring that the PCB board can smoothly enter the working area under the transport of external conveying devices and be positioned and pressed in a timely manner.

[0010] In some embodiments, the workbench further includes multiple pads arranged circumferentially at the four corners of the work area. By employing the above technical solution, multiple pads are placed at the four corners to support the PCB board, thereby reducing the transmission of vibrations generated by the motor operation below the workbench, while also dispersing the cutting pressure on the PCB board and preventing cracks caused by localized stress deformation.

[0011] In some implementations, the first positioning component includes a push rod and a first support base rotatably connected to the push rod. By employing the above technical solution, the rotatable connection between the push rod and the first support base allows for a certain degree of deflection, thereby adjusting the pressure angle of the top pressure block against the PCB board.

[0012] Furthermore, the first support base is also provided with an elastic rod in the horizontal direction, and the elastic rod is provided with an elastic element connected to the worktable on the side facing the worktable. Using the above technical solution, the elastic element can reserve a certain amount of movable space for the top rod, facilitating the first top pressing block to move away from and press against the PCB board. At the same time, the elastic element can absorb vibration and reduce the transmission of vibration along the top rod to the PCB board.

[0013] In some embodiments, the second positioning component includes a bent rod and a second support base, wherein the bent rod is rotatably connected to the second support base. Using the above technical solution, the rotation of the bent rod around the second support base can adjust the pitch angle of its second pressing block, thereby adapting to the vertical pressing requirements of PCB boards of different thicknesses.

[0014] Furthermore, the bent portion of the rod is also provided with a sliding groove, wherein the second positioning component includes a support column, and a locking element passes through the sliding groove and the support base. Using the above technical solution, the sliding groove, in conjunction with the locking element, enables height adjustment of the rod, while the support column simultaneously improves the stability of the rod.

[0015] In some embodiments, the limiting component includes a first limiting strip disposed opposite to the lifting pressure strip, and a second and a third limiting strip located between the first and second positioning components, wherein the second and third limiting strips are disposed opposite to each other. Using the above technical solution, the first, second, and third limiting strips, together with the lifting pressure strip, enclose and limit the PCB board.

[0016] In some embodiments, the lifting pressure bar includes lifting top blocks arranged horizontally on both sides of the lifting pressure bar. By employing the above technical solution, the lifting top blocks ensure smooth transport of the PCB board to the work area and allow for pressing of the PCB board during the cutting operation.

[0017] In some embodiments, this application also provides a blank cutting machine, including the above-mentioned PCB board blank cutting and positioning assembly. The blank cutting machine is further provided with a lifting cutting assembly, which is located vertically below the worktable, and the lifting cutting assembly includes a rotary cutting blade.

[0018] The above technical solution uses a lifting and lowering cutting assembly to lift the cutting blade, ensuring smooth transport of the PCB board to the work area and cutting the PCB board during the cutting operation. The raw material cutting machine has all the functions of the PCB board raw material cutting and positioning assembly mentioned above, which will not be elaborated here. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0020] Figure 1 This is a three-dimensional structural diagram of an embodiment of a PCB board blank cutting and positioning component provided by this utility model. Figure 1 ;

[0021] Figure 2 This is a three-dimensional structural diagram of an embodiment of a PCB board blank cutting and positioning component provided by this utility model. Figure 2 ;

[0022] Figure 3 This is a partially enlarged schematic diagram of an embodiment of the first positioning component of a PCB board blank cutting and positioning assembly provided by this utility model;

[0023] Figure 4This is a partially enlarged schematic diagram of an embodiment of the second positioning component of a PCB board blank cutting and positioning assembly provided by this utility model.

[0024] In the picture:

[0025] 1. Workbench; 10. Work area; 11. Hollowed-out groove; 12. Cutting guide groove; 13. Lifting pressure bar; 14. Pad block; 15. Lifting top block; 2. First positioning component; 20. First top pressure block; 21. Top rod; 22. First support seat; 23. Elastic rod; 24. Elastic element;

[0026] 3. Second positioning component; 30. Second top pressure block; 31. Bent rod; 32. Second support base; 33. Sliding groove; 34. Support column; 35. Locking component; 4. Limiting component; 40. First limiting bar; 41. Second limiting bar; 42. Third limiting bar; 5. Lifting and cutting component; 50. Rotary cutting blade. Detailed Implementation

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

[0028] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more.

[0029] See Figures 1 to 2 As shown, Figure 1 This illustration shows a three-dimensional structural diagram of an embodiment of a PCB board blank cutting and positioning assembly provided in this application. Figure 1 ; Figure 2 This illustration shows a three-dimensional structural diagram of an embodiment of a PCB board blank cutting and positioning assembly provided in this application. Figure 2 .

[0030] In some implementations, the PCB board blank cutting and positioning assembly includes: a worktable 1, a first positioning assembly 2, a second positioning assembly 3, a cutting guide groove 12, and a limiting assembly 4.

[0031] The workbench 1 includes a work area 10 and hollow slots 11 disposed on both sides of the work area 10; a first positioning component 2 passes through the hollow slot 11 on one side of the work area 10 and has a first pressing block 20 disposed horizontally toward the work area 10; a second positioning component 3 passes through the hollow slot 11 on the other side of the work area 10 and has a second pressing block 30 disposed vertically toward the workbench 1. A cutting guide groove 12 is located on the workbench 1, wherein a lifting pressure strip 13 is also disposed on one side of the cutting guide groove 12; a limiting component 4 is arranged around the periphery of the work area 10.

[0032] In this embodiment, the first pressing block 20 of the first positioning component 2 presses against the PCB board in the horizontal direction, and the second pressing block 30 of the second positioning component 3 presses against the PCB board in the vertical direction, so as to achieve simultaneous pressure in the vertical and horizontal directions. Combined with the limiting component 4 to limit the PCB board, a three-dimensional constraint force field is formed, which directly and effectively suppresses the vibration and slight displacement of the board caused by cutting vibration.

[0033] Compared to current PCB cutting methods that only limit movement around the edges and use long pressure bars, the above structure provides composite positioning and limiting in any direction of the PCB board, ensuring that the PCB board is less prone to vibration and displacement during cutting. This effectively reduces burrs generated during cutting. Furthermore, the worktable 1 is equipped with a cutting guide groove 12 and a lifting pressure bar 13 located on one side of the cutting guide groove 12, ensuring that the PCB board can smoothly enter the working area 10 during transport by external conveying devices and be positioned and pressed in a timely manner.

[0034] In some implementations, the workbench 1 further includes a plurality of pads 14, which are arranged circumferentially at the four corners of the work area 10. In this embodiment, the plurality of pads 14 are placed at the four corners to support the PCB board, thereby reducing the transmission of vibration generated by the motor operation under the workbench 1, and dispersing the cutting pressure of the PCB board to prevent cracks caused by localized deformation of the thin board.

[0035] For example, combined Figure 2 As shown, the working area 10 can also be provided with a pad 14 opposite to the second pressing block 30, so that when the second pressing block 30 presses against the top surface of the PCB board, the pad 14 can clamp the PCB board with the second pressing block 30.

[0036] In some embodiments, the limiting component 4 includes a first limiting strip 40 disposed opposite to the lifting pressure strip 13, and a second limiting strip 41 and a third limiting strip 42 located between the first positioning component 2 and the second positioning component 3, wherein the second limiting strip 41 and the third limiting strip 42 are disposed opposite to each other. In this embodiment, the first limiting strip 40, the second limiting strip 41, and the third limiting strip 42, together with the lifting pressure strip 13, enclose and limit the PCB board.

[0037] In some embodiments, the lifting pressure bar 13 includes lifting top blocks 15 arranged horizontally on both sides of the lifting pressure bar 13. In this embodiment, the lifting top blocks 15 ensure smooth transmission of the PCB board to the work area 10 and press the PCB board during the cutting operation.

[0038] Combination Figure 3 As shown, Figure 3 This illustration shows a partially enlarged schematic diagram of an embodiment of the first positioning component 2 of a PCB board blank cutting and positioning assembly provided in this application.

[0039] In some embodiments, the first positioning component 2 includes a push rod 21 and a first support base 22 rotatably connected to the push rod 21. In this embodiment, the rotatable connection between the push rod 21 and the first support base 22 allows for a certain degree of deflection, thereby adjusting the pressing angle of the top pressure block against the PCB board. Further, the first support base 22 is also provided with an elastic rod 23 in the horizontal direction, and an elastic element 24 connected to the worktable 1 is provided on the side of the elastic rod 23 facing the worktable 1. In this embodiment, the elastic element 24 can provide a certain amount of movable space for the push rod 21, facilitating the first top pressure block 20 to move away from and press against the PCB board. Simultaneously, the elastic element 24 can absorb vibration, reducing the transmission of vibration along the push rod 21 to the PCB board.

[0040] Combination Figure 4 As shown, Figure 4 This illustration shows a partially enlarged schematic diagram of an embodiment of the second positioning component 3 of a PCB board blank cutting and positioning assembly provided in this application.

[0041] In some embodiments, the second positioning component 3 includes a bent rod 31 and a second support base 32, wherein the bent rod 31 is rotatably connected to the second support base 32. In this embodiment, the rotation of the bent rod 31 around the second support base 32 can adjust the pitch angle of its second pressing block 30, thereby adapting to the vertical pressing requirements of PCB boards of different thicknesses.

[0042] Furthermore, the bent portion of the bent rod 31 is also provided with a sliding groove 33, wherein the second positioning component 3 includes a support column 34, and a locking member 35 passes through the sliding groove 33 and the support base. In this embodiment, the sliding groove 33, in conjunction with the locking member 35, enables the height adjustment of the bent rod 31, while the support column 34 simultaneously improves the stability of the bent rod 31.

[0043] In some implementation schemes, continue to combine Figure 1 As shown, this application also provides a blank cutting machine, including the above-mentioned PCB board blank cutting and positioning assembly. The blank cutting machine is further provided with a lifting cutting assembly 5, which is located vertically below the worktable 1, and the lifting cutting assembly 5 includes a rotary cutting blade 50.

[0044] In this embodiment, the lifting and lowering of the cutting blade is achieved by the lifting and lowering cutting component 5, ensuring that the PCB board is smoothly transported to the working area 10, and cutting the PCB board during the cutting operation. The raw material cutting machine has all the functions of the PCB board raw material cutting and positioning component mentioned above, which will not be described in detail here.

[0045] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, should be included within the protection scope of this utility model.

Claims

1. A PCB board blank cutting and positioning assembly, characterized in that, include: A workbench, the workbench including a work area and hollowed-out grooves disposed on both sides of the work area; A first positioning component is inserted through the hollowed-out groove on one side of the working area, and a first pressing block is provided horizontally toward the working area. The second positioning component passes through the hollowed-out groove located on the other side of the working area, and a second top pressing block is provided vertically toward the worktable; A cutting guide groove is located on the worktable, and a lifting pressure bar is also provided on one side of the cutting guide groove; A limiting component is disposed around the periphery of the working area.

2. The PCB board blank cutting and positioning assembly according to claim 1, characterized in that, The workbench also includes multiple pads, which are arranged circumferentially at the four corners of the work area.

3. The PCB board blank cutting and positioning assembly according to claim 1, characterized in that, The first positioning component includes a push rod and a first support seat rotatably connected to the push rod.

4. The PCB board blank cutting and positioning assembly according to claim 3, characterized in that, The first support base is also provided with an elastic rod in the horizontal direction, and the elastic rod is provided with an elastic element connected to the worktable on the side facing the worktable.

5. The PCB board blank cutting and positioning assembly according to claim 1, characterized in that, The second positioning component includes a bent rod and a second support base, wherein the bent rod is rotatably connected to the second support base.

6. The PCB board blank cutting and positioning assembly according to claim 5, characterized in that, The bent portion of the bent rod is also provided with a sliding groove, wherein the second positioning component includes a support column, and a locking member passes through the sliding groove and the support base.

7. The PCB board blank cutting and positioning assembly according to any one of claims 1 to 6, characterized in that, The limiting component includes a first limiting bar disposed opposite to the lifting pressure bar, and a second limiting bar and a third limiting bar located between the first positioning component and the second positioning component, wherein the second limiting bar and the third limiting bar are disposed opposite to each other.

8. The PCB board blank cutting and positioning assembly according to any one of claims 1 to 6, characterized in that, The lifting pressure bar includes lifting top blocks arranged horizontally on both sides of the lifting pressure bar.

9. A wool cutting machine, characterized in that, Includes the PCB board blank cutting and positioning assembly as described in any one of claims 1 to 8.

10. The wool cutting machine according to claim 9, characterized in that, The material cutting machine is also equipped with a lifting cutting assembly, which is located vertically below the worktable and includes a rotating cutting blade.

Images