A laser punching machine for FPCB board and its punching method

Abstract

The present invention discloses a laser punching machine and a punching method for FPCB boards, and specifically relates to the field of laser punching. The laser punching machine includes a chassis, a feeding port is provided on the chassis, a mounting frame is fixedly installed inside the chassis, a transmission platform is installed on the mounting frame, the transmission platform is used to carry the FPCB board, a laser punching mechanism is provided above the mounting frame, and the laser punching mechanism is used to perform laser drilling on the FPCB board; the transmission platform includes two parallel rotating shafts, and both ends of each rotating shaft are fixedly installed with a rotating wheel. In the process of conveying the FPCB board, the present invention first adsorbs the front end of the FPCB board on a flat plate, and then pulls the FPCB board forward through the flat plate, so that the FPCB board is continuously adsorbed on the subsequent flat plate, and finally the two ends and both sides of the entire FPCB board can be adsorbed on the flat plate, so that the four sides of the FPCB board can be flattened, there is no convex part, the FPCB board is accurately positioned, and there is no deviation in laser punching.

Description

Technical Field

[0001] The present invention relates to the technical field of laser drilling, and more specifically, to a laser drilling machine for FPCB boards and a drilling method thereof. Background Art

[0002] Multilayer flexible printed circuit board (FPCB) is a circuit board made of flexible substrate, which has flexible characteristics such as bending, folding, and folding. It has the characteristics of light weight, bendability and foldability, and is widely used in electronic products such as mobile phones and tablets.

[0003] The purpose of drilling holes in FPCB is to connect the outer layer circuits with the inner layer circuits. That is, after drilling holes, copper is plated in the holes through the electroplating process to connect the circuits of each layer. FPCB drilling is divided into mechanical drilling and laser drilling. Mechanical drilling uses a physical drill bit for operation, but the depth is uncontrollable when drilling blind holes, and the life of the drill bit is low when drilling tiny holes. Therefore, laser drilling is mostly used for FPCB boards.

[0004] Laser drilling is a process in which the light beam emitted by the laser is focused by a lens system, the energy is highly focused, and then it acts on the material, using the photothermal effect for processing. In the actual drilling process, in order to improve production efficiency, a whole FPCB board is generally punched, and then it is cut into each unit module by laser. However, due to the large area of ​​a whole FPCB board, during the production process, the edge part, especially the four corners, is very prone to warping (warping includes upward warping and downward warping). In order to prevent the influence of warping on drilling, the existing technology adopts a vacuum adsorption method, that is, the FPCB board including the warped part is adsorbed on the workbench.

[0005] Since there is a certain distance between the warp and the vacuum adsorption hole on the workbench, the warp cannot be directly adsorbed on the workbench. The usual method is to use high-speed airflow to blow the warp flat and then complete the adsorption process. However, due to the uncertainty of the shape of the warp, the method of using airflow to blow the warp flat cannot ensure that the warp is completely flattened. In other words, there will still be convex parts in the surrounding area of ​​the airflow, resulting in inaccurate positioning of the FPCB board, thereby causing deviations in the punching position. Summary of the invention

[0006] The present invention provides a laser punching machine for an FPCB board and a punching method thereof, and aims to solve the problem that the method of using airflow to flatten the warped portion cannot ensure that the warped portion is completely flattened, and there will still be raised portions in the peripheral area of ​​the airflow, resulting in inaccurate positioning of the FPCB board, thereby causing a problem of deviation in the punching position.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser drilling machine for FPCB board, comprising a chassis, a feeding port is arranged on the chassis, a mounting frame is fixedly installed inside the chassis, a transmission platform is installed on the mounting frame, the transmission platform is used to carry the FPCB board, a laser drilling mechanism is arranged above the mounting frame, and the laser drilling mechanism is used to perform laser drilling on the FPCB board; the transmission platform comprises two parallel rotating shafts, a rotating wheel is fixedly installed at both ends of each rotating shaft, a transmission belt is connected to the two rotating wheels on the same side of the two rotating shafts, a rotating driving component 1 is installed on the mounting frame, and the rotating driving component 1 It is used to drive the rotating shaft to rotate so that the transmission belt is driven. The transmission platform also includes a number of flat plates, which are fixedly connected to the two transmission belts and arranged along the length direction of the two transmission belts. A number of adsorption holes are opened on the flat plates; a vacuum control mechanism is arranged on one side of the mounting frame, and the vacuum control mechanism is used to provide negative pressure to the adsorption holes, so as to adsorb the FPCB board on the flat plate; a conveying roller 1 is arranged on the upper side of one end of the transmission platform, and the conveying roller 1 is rotatably connected to the mounting frame. A rotating driving component 2 is installed on the mounting frame, and the rotating driving component 2 is used to drive the conveying roller 1 to rotate, and the conveying roller 1 is used to press the FPCB board on the flat plate.

[0008] In a preferred embodiment, the vacuum control mechanism includes a straight tube, one end of which is closed and the other end is open. The open end of the straight tube is fixedly connected to the mounting frame and communicated with the output end of the vacuum generator. One end of each flat plate is connected to a connecting tube, and one end of the connecting tube is connected to a sleeve. The sleeve is used to slide on the straight tube. An inner cavity is opened on the inner side of the sleeve, and the inner cavity is communicated with the adsorption hole through the connecting tube. The vacuum control mechanism also includes several groups of sealing components. Several relative through holes are opened on both sides of the straight tube along the length direction. The sealing components are used to control the through holes close to the inner cavity so that the through holes are connected or disconnected with the inner cavity.

[0009] In a preferred embodiment, the blocking assembly includes a mounting plate, which is fixedly connected to the straight pipe, and a blocking shaft is movably inserted on the mounting plate. The blocking shaft is movably inserted in two opposite through holes, and an elastic component is sleeved on the outer side of the blocking shaft.

[0010] In a preferred embodiment, the bottom opening of the sleeve is provided, the sealing assembly is located at the position of the bottom opening of the sleeve, the bottom of the sleeve is fixedly connected with a driving shaft, both ends of the driving shaft have inclined surfaces, and the inclined surfaces are used to push the sealing shaft, so that the sealing shaft moves downward to open the through hole close to the inner cavity.

[0011] In a preferred embodiment, when the sleeve is sleeved on the straight tube, at least two through holes are opened to communicate with the inner cavity.

[0012] In a preferred embodiment, the laser drilling mechanism includes a linear drive component four, a linear drive component one is installed at the output end of the linear drive component four, a movable plate is installed at the output end of the linear drive component one, a linear drive component two is installed on the movable plate, and a laser is fixedly installed at the output end of the linear drive component two, and the laser is used to perform laser drilling on the FPCB board.

[0013] In a preferred embodiment, a material guiding mechanism is provided on both sides of the mounting frame, and the material guiding mechanism includes a material guiding rod rotatably connected to the mounting frame, a straight groove is provided at the upper end of the material guiding rod, a linear driving component three is fixedly installed on the mounting frame, a pin shaft is fixedly installed at the output end of the linear driving component three, and the pin shaft is slidably arranged inside the straight groove.

[0014] In a preferred embodiment, a distance sensor is disposed inside the chassis, and the distance sensor is used to detect the distance between the upper surface of the FPCB board at the position of the guide rod and the distance sensor.

[0015] In a preferred embodiment, a feeding mechanism is provided at one end of the transmission platform and at the position of the feed port, the feeding mechanism includes a feeding platform, the feeding platform is fixedly installed with the chassis, two conveying rollers 2 are rotatably connected to the feeding platform, a rotating drive component 3 is fixedly installed on one side of the feeding platform, and the output end of the rotating drive component 3 is fixedly connected to one of the conveying rollers 2.

[0016] The present invention also provides a laser drilling method for an FPCB board, using the laser drilling machine for the FPCB board, comprising the following steps:

[0017] Step 1: Convey the FPCB board to the flat plate above the transmission belt;

[0018] Step 2: The conveying roller 1 is driven to rotate by the rotating driving component 2, and the conveying roller 1 presses the front end of the FPCB board on the upper surface of the flat plate, and the vacuum control mechanism provides negative pressure to the adsorption hole, thereby adsorbing the FPCB board on the flat plate;

[0019] Step 3: The transmission belt is driven by rotating the driving component 1 to transport the FPCB forward. When the FPCB passes through the conveying roller 1, the FPCB is continuously adsorbed by the adsorption holes on the flat plate.

[0020] Step 4: After the FPCB board is delivered to the place, the FPCB board is laser drilled by the laser drilling mechanism.

[0021] Technical effects and advantages of the present invention:

[0022] In the process of conveying the FPCB board, the present invention first adsorbs the front end of the FPCB board on the flat plate, and then pulls the FPCB board forward through the flat plate, so that the FPCB board is continuously adsorbed on the subsequent flat plates, and finally both ends and both sides of the entire FPCB board are adsorbed on the flat plate, so that the four sides of the FPCB board can be flattened without any raised parts, so that the FPCB board can be accurately positioned and there will be no deviation in laser drilling.

[0023] In the process of the flat plate moving forward, one or two through holes are always connected to the inner cavity, so that the vacuum generator can always provide negative pressure for the adsorption holes on the flat plate contacting the FPCB board, so that the FPCB board can always be adsorbed on the flat plate to ensure the stability of the FPCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 It is a cross-sectional view of the present invention.

[0026] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0027] Figure 4 For the present invention Figure 3 The local structure of Figure 1 .

[0028] Figure 5 For the present invention Figure 3 The local structure of Figure 2 .

[0029] Figure 6 It is a schematic diagram of the flat plate of the present invention moving above the transmission belt.

[0030] Figure 7 It is a partial cross-sectional view of the vacuum control mechanism of the present invention.

[0031] Figure 8 It is a schematic diagram of the partial structure of the vacuum control mechanism of the present invention.

[0032] Fig. 9 For the present invention Figure 5 Schematic diagram of the partial structure of the main view.

[0033] Fig.10 For the present invention Figure 4 A magnified view of the local structure at point A.

[0034] Fig.11 It is a structural schematic diagram of the feeding mechanism of the present invention.

[0035] Fig.12 This is a flow chart of the laser drilling method of the present invention.

[0036] The accompanying drawings are marked as follows: 1, chassis; 11, feed port; 2, mounting frame; 3, transmission platform; 31, rotating shaft; 32, rotating wheel; 33, transmission belt; 34, rotating drive component 1; 35, flat plate; 351, adsorption hole; 4, vacuum control mechanism; 41, straight pipe; 42, through hole; 43, blocking component; 431, mounting plate; 432, blocking shaft; 433, elastic component; 44, sleeve; 441, inner cavity; 442, connecting pipe; 45, driving shaft; 451, inclined surface; 5 , conveying roller one; 51, rotating drive component two; 6, laser drilling mechanism; 60, linear drive component four; 61, linear drive component one; 62, moving plate; 63, linear drive component two; 64, laser; 7, feeding mechanism; 71, feeding platform; 72, conveying roller two; 73, rotating drive component three; 8, material guiding mechanism; 81, material guiding rod; 811, straight groove; 82, linear drive component three; 821, pin shaft; 83, distance sensor; 100, FPCB board. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Refer to the instruction manual Figure 1-Figure 12A laser punching machine for FPCB board, comprising a chassis 1, a feeding port 11 is arranged on the chassis 1, a mounting frame 2 is fixedly installed inside the chassis 1, a transmission platform 3 is installed on the mounting frame 2, the transmission platform 3 is used to carry the FPCB board 100, a laser punching mechanism 6 is arranged above the mounting frame 2, the laser punching mechanism 6 is used to perform laser drilling on the FPCB board 100; the transmission platform 3 comprises two parallel rotating shafts 31, both ends of each rotating shaft 31 are fixedly installed with a rotating wheel 32, two rotating wheels 32 on the same side of the two rotating shafts 31 are connected with a transmission belt 33 for transmission, and a rotating driving component 34 is installed on the mounting frame 2, and the rotating driving component 34 is used to drive the rotating shaft 31 to rotate so that the transmission The driving belt 33 is driven, and the driving platform 3 also includes a plurality of flat plates 35, which are fixedly connected to the two driving belts 33 and arranged along the length direction of the two driving belts 33, and a plurality of adsorption holes 351 are opened on the flat plates 35; a vacuum control mechanism 4 is arranged on one side of the mounting frame 2, and the vacuum control mechanism 4 is used to provide negative pressure to the adsorption holes 351, so as to adsorb the FPCB board 100 on the flat plate 35; a conveying roller 5 is arranged on the upper side of one end of the driving platform 3, and the conveying roller 5 is rotatably connected to the mounting frame 2, and a rotating driving component 2 51 is installed on the mounting frame 2, and the rotating driving component 2 51 is used to drive the conveying roller 5 to rotate, and the conveying roller 5 is used to press the FPCB board 100 on the flat plate 35.

[0039] Furthermore, the laser drilling mechanism 6 includes a linear drive component 4 60, a linear drive component 1 61 is installed at the output end of the linear drive component 4 60, a movable plate 62 is installed at the output end of the linear drive component 1 61, a linear drive component 2 63 is installed on the movable plate 62, and a laser 64 is fixedly installed at the output end of the linear drive component 2 63, and the laser 64 is used to laser drill the FPCB board 100.

[0040] It should be noted that the linear drive component 4 60 is fixedly installed in the chassis 1, and the linear drive component 4 60, the linear drive component 1 61 and the linear drive component 2 63 can all adopt linear moving devices such as screw nut devices or linear motors, and the linear drive component 4 60, the linear drive component 1 61 and the moving plate 62 constitute a three-axis moving mechanism, so as to facilitate laser drilling of the FPCB board 100. The laser 64 selects different types according to different FPCB board 100 materials, such as UV laser or carbon dioxide laser.

[0041] In the above technical solution, the rotation driving component 1 34 and the rotation driving component 2 51 are motors.

[0042] In this embodiment, the implementation is specifically as follows: before punching, the FPCB board 100 is first transported toward the direction of the flat plate 35 above the transmission belt 33, and then the conveying roller 15 is driven to rotate by the rotating driving component 2 51. When the front end of the FPCB board 100 is transported to the position of the conveying roller 15, the conveying roller 15 presses the FPCB board 100 on the upper surface of the flat plate 35 and can transport the FPCB board 100 forward. The vacuum control mechanism 4 provides negative pressure to the adsorption hole 351, so that the FPCB board 100 is adsorbed on the flat plate 35. At this time, the rotating driving component 1 34 drives the rotating shaft 31 and the rotating wheel 32 to rotate, and the transmission belt 33 drives the flat plate 35 to drive, so that the frontmost flat plate 35 pulls the front end of the adsorbed FPCB board 100 to be transported forward. During the transportation process, Figure 5 As shown in the figure, there are continuous plates 35 passing under the conveying roller 5. When the plates 35 pass under the conveying roller 5, the conveying roller 5 will press the FPCB 100 onto the plates 35, so that the adsorption holes 351 on the plates 35 adsorb the FPCB 100. Finally, the FPCB 100 is adsorbed onto a plurality of plates 35, the rear end of the FPCB 100 is also adsorbed onto the plates 35, and both sides of the FPCB 100 can also be adsorbed onto the plates 35. When the plates 35 move into position, as shown in the figure, the FPCB 100 is adsorbed onto the plates 35. Figure 6 As shown, the FPCB board 100 is located on the upper surface of the flat plate 35 on the left side of the conveying roller 1 5. Finally, the FPCB board 100 can be laser-punched by the laser punching mechanism 6.

[0043] In the process of conveying the FPCB board 100, the above technical solution first adsorbs the front end of the FPCB board 100 on the flat plate 35, and then pulls the FPCB board 100 forward through the flat plate 35, so that the FPCB board 100 is continuously adsorbed on the subsequent flat plates 35, and finally both ends and both sides of the entire FPCB board 100 are adsorbed on the flat plate 35, so that the four sides of the FPCB board 100 can be flattened without any protruding parts, so that the FPCB board 100 can be accurately positioned and there will be no deviation in laser drilling.

[0044] Refer to the instruction manual Figure 3-Figure 9Since there are multiple flat plates 35, the vacuum generator cannot be directly connected to each flat plate 35, otherwise the negative pressure suction force is small or even negligible. Therefore, after the FPCB board 100 is pressed on the flat plate 35 by the conveying roller 15, the adsorption hole 351 on the flat plate 35 can be connected to the vacuum generator. Therefore, multiple valves need to be set, but the number of valves is large and precise control is required, which is inconvenient. Therefore, the following technical solution is proposed. Specifically, the vacuum control mechanism 4 includes a straight tube 41, one end of the straight tube 41 is closed, and the other end is open. The open end of the straight tube 41 is connected to the mounting frame 2 is fixedly connected and communicated with the output end of the vacuum generator, one end of each plate 35 is connected with a connecting pipe 442, one end of the connecting pipe 442 is connected with a sleeve 44, the sleeve 44 is used for slidingly sleeved on the straight pipe 41, the inner side of the sleeve 44 is provided with an inner cavity 441, the inner cavity 441 is communicated with the adsorption hole 351 through the connecting pipe 442, the vacuum control mechanism 4 also includes a plurality of groups of blocking components 43, both sides of the straight pipe 41 are provided with a plurality of opposite through holes 42 along the length direction, the blocking components 43 are used for controlling the through holes 42 close to the inner cavity 441, so that the through holes 42 are connected or disconnected with the inner cavity 441.

[0045] Furthermore, the blocking assembly 43 includes a mounting plate 431, which is fixedly connected to the straight tube 41, and a blocking shaft 432 is movably inserted on the mounting plate 431. The blocking shaft 432 is movably inserted in two opposite through holes 42, and an elastic component 433 is sleeved on the outer side of the blocking shaft 432.

[0046] Furthermore, the bottom opening of the sleeve 44 is set, and the sealing assembly 43 is located at the position of the bottom opening of the sleeve 44. The bottom of the sleeve 44 is fixedly connected with a driving shaft 45. Both ends of the driving shaft 45 have inclined surfaces 451. The inclined surfaces 451 are used to push the sealing shaft 432, so that the sealing shaft 432 moves downward to open the through hole 42 close to the inner cavity 441.

[0047] Furthermore, when the sleeve 44 is sleeved on the straight tube 41 , at least two through holes 42 are opened to communicate with the inner cavity 441 .

[0048] In the above technical solution, if Figure 5 As shown in FIG. 3 , when the plate 35 rotates to the upper side and continues to move forward, the sleeve 44 will be sleeved on the outer side of the straight tube 41. Figure 7 and Figure 8As shown, it shows a state where a sleeve 44 is sleeved on the straight tube 41. At this time, the driving shaft 45 presses on the bottom of the two blocking shafts 432 to push the blocking shafts 432 downward, so that the upper end of the blocking shaft 432 is separated from the through hole 42, thereby opening the through hole 42. At this time, the vacuum generator is connected with the straight tube 41, the through hole 42, the inner cavity 441, the connecting tube 442, the inside of the flat plate 35, and the adsorption hole 351 in sequence, thereby providing negative pressure for the adsorption hole 351 to adsorb the FPCB board 100 on the upper surface of the flat plate 35. When the transmission belt 33 drives the flat plate 35 to move forward, the sleeve 44 slides to the left on the straight tube 41 (as shown in FIG. 1 ). Figure 7 In the sliding process, the right end of the drive shaft 45 will first break away from the blocking shaft 432. Under the action of the elastic component 433, the blocking shaft 432 moves upward to block the through hole 42 on the right. When the sleeve 44 continues to slide to the left, the left end of the drive shaft 45 will push the next blocking shaft 432, so that the blocking shaft 432 moves downward to open the corresponding through hole 42. At this time, the through hole 42 is connected to the sleeve 44 again. In other words, during the movement of the sleeve 44 to the left, one or two through holes 42 are always connected to the inner cavity 441 to provide negative pressure for the adsorption hole 351. All subsequent sleeves 44 are like this, wherein the elastic component 433 is a compression spring.

[0049] Through the above technical solution, during the process of the flat plate 35 moving forward, one or two through holes 42 are always connected to the inner cavity 441, so that the vacuum generator can always provide negative pressure for the adsorption holes 351 on the flat plate 35 that contacts the FPCB board 100, so that the FPCB board 100 can always be adsorbed on the flat plate 35 to ensure the stability of the FPCB board 100.

[0050] It should be noted that when the sleeve 44 is sleeved on the straight tube 41, three or more through holes 42 may be provided to be opened and communicated with the inner cavity 441. For example, during the movement of the sleeve 44, two or three, three or four, four or five through holes 42 may always be connected with the inner cavity 441.

[0051] Refer to the instruction manual Figure 3-Figure 9 A material guiding mechanism 8 is provided on both sides of the mounting frame 2, and the material guiding mechanism 8 includes a material guiding rod 81 rotatably connected to the mounting frame 2, and a straight groove 811 is provided at the upper end of the material guiding rod 81. A linear driving component 3 82 is fixedly installed on the mounting frame 2, and a pin shaft 821 is fixedly installed at the output end of the linear driving component 3 82, and the pin shaft 821 is slidably arranged inside the straight groove 811.

[0052] Furthermore, a distance sensor 83 is disposed inside the chassis 1 , and the distance sensor 83 is used to detect the distance between the upper surface of the FPCB board 100 at the position of the guide rod 81 and the distance sensor 83 .

[0053] like Fig. 9 As shown, when the FPCB board 100 is conveyed forward, if the front end of the FPCB board 100 tilts downward, it may hit the right wall of the flat plate 35, causing it to be unable to be conveyed forward and bulge upward. When bulging, the distance detected by the distance sensor 83 becomes smaller, thereby identifying the bulge. At this time, the linear drive component 3 82 drives the pin 821 to move downward, and the pin 821 pulls the guide rod 81 to swing, and the lower end of the guide rod 81 swings upward, thereby lifting the bulging part of the FPCB board 100 upward, so that the front end of the FPCB board 100 is separated from the side wall of the flat plate 35, and then the front end of the FPCB board 100 will enter the bottom of the conveying roller 1 5, thereby resuming normal conveying. Among them, the linear drive component 3 82 is a cylinder.

[0054] Refer to the instruction manual Figure 3 and Fig.11 A feeding mechanism 7 is provided at one end of the transmission platform 3 and at the position of the feed port 11. The feeding mechanism 7 includes a feeding platform 71. The feeding platform 71 is fixedly installed with the chassis 1. Two conveying rollers 2 72 are rotatably connected to the feeding platform 71. A rotating driving component 3 73 is fixedly installed on one side of the feeding platform 71. The output end of the rotating driving component 3 73 is fixedly connected to one of the conveying rollers 2 72.

[0055] It should be noted that the rotating driving component 3 73 is a motor, which is used to drive one of the conveying rollers 2 72 to rotate. The two conveying rollers 2 72 are arranged vertically side by side. When conveying the FPCB board 100, the FPCB board 100 can be passed between the two conveying rollers 2 72.

[0056] Refer to the instruction manual Figure 1-Figure 12 This embodiment also provides a laser punching method for an FPCB board, using the laser punching machine for the FPCB board, comprising the following steps:

[0057] Step 1: transport the FPCB board 100 to the flat plate 35 above the transmission belt 33;

[0058] Step 2: The conveying roller 1 5 is driven to rotate by the rotating driving component 2 51, and the conveying roller 1 5 presses the front end of the FPCB board 100 on the upper surface of the flat plate 35, and the vacuum control mechanism 4 provides negative pressure to the adsorption hole 351, so that the FPCB board 100 is adsorbed on the adsorption hole 351;

[0059] Step 3: The transmission belt 33 is driven by rotating the driving component 1 34 to transport the FPCB 100 forward. When the FPCB 100 passes through the conveying roller 1 5 , the FPCB 100 is continuously adsorbed by the flat plate 35 on the flat plate 35 ;

[0060] Step 4: After the FPCB board 100 is delivered to the position, the FPCB board 100 is laser drilled by the laser drilling mechanism 6 .

[0061] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser punching machine for FPCB board, characterized by: The invention comprises a chassis (1), wherein the chassis (1) is provided with a material inlet (11), a mounting frame (2) is fixedly mounted inside the chassis (1), a transmission platform (3) is mounted on the mounting frame (2), the transmission platform (3) is used to carry an FPCB board (100), and a laser drilling mechanism (6) is arranged above the mounting frame (2), and the laser drilling mechanism (6) is used to perform laser drilling on the FPCB board (100); The transmission platform (3) comprises two parallel rotating shafts (31), each of the rotating shafts (31) is fixedly mounted with a rotating wheel (32) at both ends, two rotating wheels (32) on the same side of the two rotating shafts (31) are connected to a transmission belt (33), a rotating drive component (34) is mounted on the mounting frame (2), the rotating drive component (34) is used to drive the rotating shaft (31) to rotate so as to drive the transmission belt (33), the transmission platform (3) further comprises a plurality of flat plates (35), the plurality of flat plates (35) are fixedly connected to the two transmission belts (33) and arranged along the length direction of the two transmission belts (33), and a plurality of adsorption holes (351) are provided on the flat plates (35); A vacuum control mechanism (4) is provided on one side of the mounting frame (2), and the vacuum control mechanism (4) is used to provide negative pressure to the adsorption hole (351), thereby adsorbing the FPCB board (100) on the flat plate (35); A conveying roller 1 (5) is arranged on the upper side of one end of the transmission platform (3), and the conveying roller 1 (5) is rotatably connected to the mounting frame (2). A rotating driving component 2 (51) is mounted on the mounting frame (2), and the rotating driving component 2 (51) is used to drive the conveying roller 1 (5) to rotate, and the conveying roller 1 (5) is used to press the FPCB board (100) onto the flat plate (35); The vacuum control mechanism (4) comprises a straight tube (41), one end of the straight tube (41) is closed and the other end is open, the open end of the straight tube (41) is fixedly connected to the mounting frame (2) and communicated with the output end of the vacuum generator, one end of each of the flat plates (35) is connected to a connecting tube (442), one end of the connecting tube (442) is connected to a sleeve (44), the sleeve (44) is used to be slidably sleeved on the straight tube (41), an inner cavity (441) is provided on the inner side of the sleeve (44), the inner cavity (441) is communicated with the adsorption hole (351) through the connecting tube (442), and the vacuum control mechanism (4) further comprises a plurality of groups of blocking components (43), a plurality of opposite through holes (42) are provided on both sides of the straight tube (41) along the length direction, the blocking components (43) are used to control the through holes (42) close to the inner cavity (441) so that the through holes (42) are connected or disconnected with the inner cavity (441); The blocking assembly (43) comprises a mounting plate (431), the mounting plate (431) being fixedly connected to the straight tube (41), a blocking shaft (432) being movably inserted on the mounting plate (431), the blocking shaft (432) being movably inserted in two opposite through holes (42), and an elastic component (433) being sleeved on the outer side of the blocking shaft (432); The bottom of the sleeve (44) is provided with an opening, the blocking assembly (43) is located at the position of the bottom opening of the sleeve (44), the bottom of the sleeve (44) is fixedly connected with a driving shaft (45), both ends of the driving shaft (45) have inclined surfaces (451), and the inclined surfaces (451) are used to push the blocking shaft (432), so that the blocking shaft (432) moves downward to open the through hole (42) close to the inner cavity (441).

2. The laser punching machine for FPCB according to claim 1, characterized in that: When the sleeve (44) is sleeved on the straight tube (41), at least two through holes (42) are opened to communicate with the inner cavity (441).

3. The laser punching machine for FPCB according to claim 1, characterized in that: The laser drilling mechanism (6) comprises a linear drive component four (60), a linear drive component one (61) being mounted on the output end of the linear drive component four (60), a moving plate (62) being mounted on the output end of the linear drive component one (61), a linear drive component two (63) being mounted on the moving plate (62), a laser (64) being fixedly mounted on the output end of the linear drive component two (63), and the laser (64) being used for laser drilling of the FPCB (100).

4. The laser punching machine for FPCB according to claim 1, characterized in that: A material guiding mechanism (8) is provided on both sides of the mounting frame (2), the material guiding mechanism (8) comprising a material guiding rod (81) rotatably connected to the mounting frame (2), a straight groove (811) being provided at the upper end of the material guiding rod (81), a linear drive component three (82) being fixedly mounted on the mounting frame (2), a pin shaft (821) being fixedly mounted at the output end of the linear drive component three (82), and the pin shaft (821) being slidably arranged inside the straight groove (811).

5. The laser punching machine for FPCB according to claim 1, characterized in that: A distance sensor (83) is arranged inside the chassis (1), and the distance sensor (83) is used to detect the distance between the upper surface of the FPCB board (100) at the position of the material guide rod (81) and the distance sensor (83).

6. The laser punching machine for FPCB according to claim 1, characterized in that: A feeding mechanism (7) is provided at one end of the transmission platform (3) and at the position of the feed port (11), the feeding mechanism (7) comprising a feeding platform (71), the feeding platform (71) being fixedly mounted on the chassis (1), two conveying rollers (72) being rotatably connected to the feeding platform (71), a rotating driving component (73) being fixedly mounted on one side of the feeding platform (71), and an output end of the rotating driving component (73) being fixedly connected to one of the conveying rollers (72).

7. A laser drilling method for an FPCB board, using the laser drilling machine for an FPCB board as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: conveying the FPCB board (100) to the flat plate (35) above the transmission belt (33); Step 2: The conveying roller 1 (5) is driven to rotate by the rotating driving component 2 (51), and the conveying roller 1 (5) presses the front end of the FPCB board (100) onto the upper surface of the flat plate (35), and the vacuum control mechanism (4) provides negative pressure to the adsorption hole (351), thereby adsorbing the FPCB board (100) onto the flat plate (35); Step 3: The transmission belt (33) is driven by rotating the driving component 1 (34) to transport the FPCB (100) forward. When the FPCB (100) passes through the conveying roller 1 (5), the FPCB (100) is continuously adsorbed by the adsorption holes (351) on the flat plate (35); Step 4: After the FPCB board (100) is delivered to the position, laser drilling is performed on the FPCB board (100) by means of a laser drilling mechanism (6).

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