A picosecond laser cutting device for PCB production and processing

Abstract

The present invention discloses a picosecond laser cutting device for PCB production and processing, comprising an equipment base, a protective machine cover fixedly installed on the equipment base, and a main slide rail fixedly connected to the protective machine cover, a secondary slide rail slidably installed on the main slide rail, and an upper laser knife slidably installed on the secondary slide rail, a processing groove is provided on the equipment base, and a guide rail is fixedly installed in the processing groove, a stepping seat is slidably installed on the guide rail, and a driving rail is fixedly connected to the stepping seat, a lower laser knife is slidably installed on the driving rail, a positioning plate is fixedly installed in the processing groove, and a mounting seat is fixedly connected to the positioning plate, and a main clamp structure with a follow-up clamping function is connected to the mounting seat; the present invention installs the upper laser knife through the main slide rail and the secondary slide rail, and cuts the PCB from above, and the present invention can also perform synchronous cutting from below the PCB, effectively improving the efficiency of PCB laser cutting and forming.

Description

Technical Field

[0001] The present invention relates to the technical field of laser rapid prototyping equipment, and in particular to a picosecond laser cutting equipment for PCB production and processing. Background Art

[0002] Laser rapid cutting equipment is an important laser rapid prototyping equipment. It uses laser to form a cutter, which can quickly complete the cutting and shaping of metal plates or various circuit substrates. Picosecond laser cutting equipment has higher precision and faster cutting speed than general laser cutting equipment, and is now widely used in PCB circuit board prototyping.

[0003] As the requirements for PCB circuit boards in consumer electronics such as mobile phones and automotive electronics become higher and higher, the mainstream requirements are that the cutting edges are dust-free, burr-free, deformed, and will not affect the edge components. Traditional processing modes such as milling cutters, tool paths, punching, and sawing will affect the PCB circuit boards to varying degrees. The non-contact processing mode of laser cutting equipment does not produce stress or dust during processing, and the processing gap is particularly small. These advantages make this processing mode stand out and become more and more popular among major manufacturers. However, the current PCB laser cutting machine also has its fatal shortcomings. The PCB laser cutting equipment uses a galvanometer scanning method when cutting. It scans back and forth multiple times and removes layer by layer to form a cut. The processing efficiency is low. Compared with traditional tool paths and milling cutter processing, the processing speed has become its shortcoming. Summary of the invention

[0004] The purpose of the present invention is to provide a picosecond laser cutting device for PCB production and processing, so as to achieve high-efficiency double-sided cutting and ensure cutting accuracy, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a picosecond laser cutting device for PCB production and processing, comprising an equipment base, a protective cover is fixedly installed on the equipment base, and a main slide rail is fixedly connected to the protective cover, a secondary slide rail is slidably installed on the main slide rail, and an upper laser knife is slidably installed on the secondary slide rail, a processing tank is arranged on the equipment base, and a guide rail is fixedly installed in the processing tank, a stepping seat is slidably installed on the guide rail, and a driving rail is fixedly connected to the stepping seat, a lower laser knife is slidably installed on the driving rail, and a fixed plate is fixedly installed in the processing tank. The stepping seat is fixedly mounted with a side seat, and a driving shaft is rotatably mounted on the side seat, the driving shaft is connected to the driving seat through a pulley pair, and the driving shaft is connected to a clamping structure and a unloading structure with a synchronous driving function, and the clamping structure has the function of fixing the cut-off part of the PCB, a discharge trough is arranged on the equipment base, and a push rod is fixedly connected to the side seat, and the push rod is in contact with the main clamp structure.

[0006] Preferably, the main clamp structure includes a cylinder fixedly connected to the mounting seat, and a lifting seat is fixedly connected to the cylinder, a pressure plate is fixedly connected to the lifting seat, and a guide rod is fixedly connected to the pressure plate, a slide seat is slidably mounted on the guide rod, a pressure wheel is rotatably mounted on the slide seat, and a pressure rod is fixedly connected to the slide seat.

[0007] Preferably, the lifting seat is fixedly connected to the telescopic end of the cylinder, and the pressure plate is connected to the bottom of the lifting seat, the guide rod is vertically connected to the side of the lifting seat, and the pressure wheel is connected to the slide seat through a wheel axle, the pressure rod is connected to the side of the slide seat, and the pressure rod is located on the moving path of the push rod.

[0008] Preferably, the clamping structure includes a driving rod fixedly connected to the driving shaft, and the driving rod is rotatably connected to a first connecting rod, the first connecting rod is rotatably connected to a clamping plate, and the clamping plate is slidably mounted on the vertical guide rod.

[0009] Preferably, the driving rod is connected to the end of the driving shaft, and the first connecting rod is connected between the driving rod and the clamping plate, the driving rod, the first connecting rod and the clamping plate constitute a crank slider structure, and the clamping plate is connected to the vertical guide rod through a sliding groove.

[0010] Preferably, the unloading structure includes a driving wheel fixedly connected to the driving shaft, and the driving wheel is rotatably connected to a second connecting rod, the second connecting rod is rotatably connected to a lifting rod, and the lifting rod is fixedly connected to a push rod, the push rod is slidably installed in a limiting groove, and the unloading structure also includes a rubber belt fixedly connected between the stepping seat and the equipment base.

[0011] Preferably, the driving wheel is connected to the end of the driving shaft, and the second connecting rod is rotatably connected between the driving wheel and the lifting rod, the driving wheel, the second connecting rod and the lifting rod constitute a crank slider structure, and the limiting groove is arranged on the side seat, one end of the rubber belt is connected to the groove of the stepping seat, and the other end is connected to the side of the discharge trough, the push rod is located at the bottom of the rubber belt, and the push rod is movably connected to the rubber belt.

[0012] Preferably, two side seats are symmetrically arranged on both sides of the stepping seat, and the driving shaft is rotatably mounted on the side seats through bearings, and the two ends of the driving shaft are respectively connected to the driving rod and the driving wheel, and the stroke of the lifting rod is smaller than the stroke of the clamping plate.

[0013] Preferably, the protective cover is installed on one side of the equipment base, and a feeding plane is provided on the other side of the equipment base, an observation window is provided on the protective cover, the main slide rail and the secondary slide rail are vertically arranged, and the upper laser knife head is arranged downward, the drive rail is installed on one side of the stepping seat, and the lower laser knife head is arranged upward, and the positioning plate is located at the end point of the moving trajectory of the stepping seat.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The protective cover of the present invention is on the upper surface of the equipment base, forming a semi-hidden working space. In this working space, the upper laser knife is first installed through the main slide rail and the secondary slide rail, and the upper laser knife can be sent to any point on the horizontal plane to cut the PCB from the top. In addition, the present invention can also perform synchronous cutting from the bottom of the PCB. The lower cutting structure is located in the processing tank, and the stepping seat is installed by the guide rail. The stepping seat can move step by step, and the lower laser knife moves linearly along the driving rail, so that the PCB is cut piece by piece from one side, which effectively improves the efficiency of PCB laser cutting and forming;

[0016] 2. The present invention takes into account that the cutting process is gradually cut from the starting point of the stepping seat to the end point, and a main clamp structure is arranged at the end point, and a secondary clamp structure that can follow the movement of the stepping seat and repeatedly open and close is arranged, wherein the main clamp structure continuously generates pressure on the entire PCB board to maintain the stability of the PCB board, and the main clamp structure has a follow-up clamping function, and has a movable pressure wheel that presses on the middle of the circuit board, close to the cutting position, and through the arrangement of the pressure rod, when the stepping seat moves and cuts step by step, the position of the pressure wheel can be switched by the movement of the slide seat, and it is always on the side of the cutting position, preventing the PCB from shaking during cutting, and ensuring the cutting accuracy;

[0017] 3. The PCB board in the present invention is divided into a part to be cut and a part to be cut. The part to be cut is fixed by a positioning plate and a main fixture structure, while the part to be cut is fixed by a movable clamping structure and a stepping seat, and the stepping seat can be moved to remove the cut part and fix it again at the end of the PCB board, so that continuous separation and cutting work is performed, and the degree of automation is high;

[0018] 4. The present invention installs a discharging structure, which can work synchronously with the clamping structure. When the clamp releases the cut PCB, the discharging structure can guide it so that it falls from the stepping seat into the discharge chute, completing automatic discharging, so that the stepping seat can enter an unloaded state. The crank slider structure composed of the driving wheel, the second connecting rod and the lifting rod moves synchronously with the crank slider structure composed of the driving rod on the other side. When the clamp is pressed on the PCB, the lifting rod also drives the push rod to be located below, so that the rubber belt remains flat and the PCB can be placed on it. When the clamp is released, the push rod pushes the rubber belt upward, causing the rubber belt to tilt, and the small pieces of PCB that have been cut on it can slide along it and fall into the discharge chute, completing automatic discharging, so that the stepping seat can work continuously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a first schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a second schematic diagram of the overall structure of the present invention;

[0021] Figure 3 is a schematic diagram of the cover structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the base structure of the present invention;

[0023] Figure 5 is a schematic diagram of a fixing fixture structure of the present invention;

[0024] Figure 6 is a schematic diagram of the bottom cutting structure of the present invention;

[0025] Figure 7 It is a schematic diagram of the lower cutting seat structure of the present invention;

[0026] Figure 8 It is a schematic diagram of the compression structure of the present invention;

[0027] Fig. 9 It is a schematic diagram of the side seat structure of the present invention;

[0028] Fig.10 for Figure 8 A magnified schematic diagram of area A in the middle.

[0029] In the figure: equipment base 1, protective cover 2, main slide rail 3, secondary slide rail 4, upper laser knife 5, processing tank 6, guide rail 7, stepping seat 8, driving rail 9, lower laser knife 10, positioning plate 11, mounting seat 12, cylinder 13, lifting seat 14, pressure plate 15, guide rod 16, slide seat 17, pressure wheel 18, pressure rod 19, side seat 20, drive shaft 21, pulley pair 22, drive seat 23, drive rod 24, first connecting rod 25, splint 26, vertical guide rod 27, drive wheel 28, second connecting rod 29, lifting rod 30, top rod 31, limit groove 32, rubber belt 33, discharge chute 34, push rod 35. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. It should be noted that 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 making creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 10 The present invention provides a technical solution: a picosecond laser cutting device for PCB production and processing, comprising an equipment base 1, a protective cover 2 is fixedly installed on the equipment base 1, and a main slide rail 3 is fixedly connected to the protective cover 2, a secondary slide rail 4 is slidably installed on the main slide rail 3, and an upper laser knife 5 is slidably installed on the secondary slide rail 4, a processing tank 6 is arranged on the equipment base 1, and a guide rail 7 is fixedly installed in the processing tank 6, a stepping seat 8 is slidably installed on the guide rail 7, and a driving rail 9 is fixedly connected to the stepping seat 8, a lower laser knife 10 is slidably installed on the driving rail 9, a positioning plate 11 is fixedly installed in the processing tank 6, and the positioning plate 1 1 is fixedly connected with a mounting seat 12, and a main clamp structure with a follow-up clamping function is connected to the mounting seat 12, and the main clamp structure has a function of fixing the PCB to-be-cut part, a side seat 20 is fixedly installed on the stepping seat 8, and a driving shaft 21 is rotatably installed on the side seat 20, the driving shaft 21 is connected to the driving seat 23 through a pulley pair 22, and the driving shaft 21 is connected with a clamping structure with a synchronous driving function and a discharge structure, and the clamping structure has a function of fixing the PCB cut-off part, a discharge trough 34 is provided on the equipment base 1, and a push rod 35 is fixedly connected to the side seat 20, and the push rod 35 is in contact with the main clamp structure.

[0032] The protective cover 2 is installed on one side of the equipment base 1, and a feeding plane is provided on the other side of the equipment base 1. An observation window is provided on the protective cover 2. The main slide rail 3 and the secondary slide rail 4 are vertically arranged, and the upper laser cutter 5 is arranged with the head facing downward. The driving rail 9 is installed on one side of the stepping seat 8, and the head of the lower laser cutter 10 is arranged with the head facing upward. The positioning plate 11 is located at the end point of the moving track of the stepping seat 8.

[0033] The protective cover 2 of the present invention is formed on the upper surface of the equipment base 1 to form a semi-hidden working space. In this working space, the upper laser knife 5 is first installed through the main slide rail 3 and the secondary slide rail 4. The upper laser knife 5 can be sent to any point on the horizontal plane by driving the two slide rails to cut the PCB. In order to improve the cutting efficiency of the PCB, the present invention can also perform synchronous cutting from the bottom of the PCB. The structure for cutting below is located in the processing tank 6. The stepping seat 8 is installed by the guide rail 7. The stepping seat 8 can move step by step, and the lower laser knife 10 moves linearly along the driving rail 9, so that the PCB is cut piece by piece from one side.

[0034] The PCB must be fixed when cutting. Since the cutting in the present invention is gradually cut from one side to the other side, and gradually cuts from the starting point of the stepping seat 8 to the end point, a main clamp structure is provided at the end point, and a secondary clamp structure that can be repeatedly opened and closed and can follow the movement of the stepping seat 8 is provided to cut the PCB board piece by piece from the whole board;

[0035] The main clamp structure includes a cylinder 13 fixedly connected to a mounting seat 12, and a lifting seat 14 fixedly connected to the cylinder 13, a pressing plate 15 fixedly connected to the lifting seat 14, and a guide rod 16 fixedly connected to the pressing plate 15, a slide seat 17 slidably mounted on the guide rod 16, a pressure wheel 18 rotatably mounted on the slide seat 17, and a pressure rod 19 fixedly connected to the slide seat 17;

[0036] The main fixture structure continuously generates pressure on the entire PCB to keep the PCB stable.

[0037] The lifting seat 14 is fixedly connected to the telescopic end of the cylinder 13, and the pressure plate 15 is connected to the bottom of the lifting seat 14, the guide rod 16 is vertically connected to the side of the lifting seat 14, and the pressure wheel 18 is connected to the slide seat 17 through the wheel axle, and the pressure rod 19 is connected to the side of the slide seat 17, and the pressure rod 19 is located on the moving path of the push rod 35;

[0038] The main fixture structure is installed by relying on the positioning plate 11 and the mounting seat 12 located at the cutting end point. One side of the entire PCB board is placed on the positioning plate 11, and the other side is placed on the stepping seat 8. The pressure generated by the cylinder 13 acts on the lifting seat 14, driving the lifting seat 14 to move downward, and the pressing plate 15 on it presses on the end of the circuit board, while the pressing wheel 18 on the guide rod 16 presses on the middle of the circuit board, close to the cutting position, and through the setting of the pressure rod 19, when the stepping seat 8 moves and cuts step by step, the position of the pressing wheel 18 can be switched by moving the slide seat 17, and it is always on the side of the cutting position;

[0039] The clamping structure includes a driving rod 24 fixedly connected to the driving shaft 21, and a first connecting rod 25 is rotatably connected to the driving rod 24, the first connecting rod 25 is rotatably connected to a clamping plate 26, and the clamping plate 26 is slidably mounted on a vertical guide rod 27;

[0040] The PCB board is divided into a part to be cut off and a part to be cut off. The part to be cut off is fixed by the positioning plate 11 and the main fixture structure, while the part to be cut off is fixed by the movable clamping structure and the stepping seat 8. The stepping seat 8 can be moved to remove the cut part and fix it to the end of the PCB board again.

[0041] The driving rod 24 is connected to the end of the driving shaft 21, and the first connecting rod 25 is connected between the driving rod 24 and the clamping plate 26. The driving rod 24, the first connecting rod 25 and the clamping plate 26 constitute a crank slider structure, and the clamping plate 26 is connected to the vertical guide rod 27 through a sliding groove;

[0042] The clamping structure is driven by the driving shaft 21. When the crank slider structure composed of the driving rod 24, the first connecting rod 25 and the clamping plate 26 works, it can drive the clamping plate 26 to perform reciprocating lifting and lowering movements. When the clamping plate 26 descends, the PCB can be fixed between the clamping plate 26 and the stepping seat 8. When the cutting is completed, the clamping plate 26 will rise and release the PCB.

[0043] The unloading structure includes a driving wheel 28 fixedly connected to the driving shaft 21, and the driving wheel 28 is rotatably connected to a second connecting rod 29, and the second connecting rod 29 is rotatably connected to a lifting rod 30, and the lifting rod 30 is fixedly connected to a push rod 31, and the push rod 31 is slidably installed in a limiting groove 32. The unloading structure also includes a rubber belt 33 fixedly connected between the stepping seat 8 and the equipment base 1;

[0044] At the same time, relying on the same driving shaft 21, a discharge structure is also installed, which can work synchronously with the clamping structure. When the clamping plate 26 releases the cut PCB, the discharge structure can guide it to fall from the stepping seat 8 into the discharge chute 34, completing the automatic discharge, so that the stepping seat 8 can enter the no-load state;

[0045] The driving wheel 28 is connected to the end of the driving shaft 21, and the second connecting rod 29 is rotatably connected between the driving wheel 28 and the lifting rod 30. The driving wheel 28, the second connecting rod 29 and the lifting rod 30 constitute a crank slider structure, and the limiting groove 32 is set on the side seat 20. One end of the rubber belt 33 is connected to the groove of the stepping seat 8, and the other end is connected to the side of the discharge trough 34. The push rod 31 is located at the bottom of the rubber belt 33, and the push rod 31 is movably connected to the rubber belt 33;

[0046] The crank slider structure composed of the driving wheel 28, the second connecting rod 29 and the lifting rod 30 moves synchronously with the crank slider structure composed of the driving rod 24 on the other side. When the clamping plate 26 is pressed on the PCB, the lifting rod 30 also drives the push rod 31 to be located below, so that the rubber belt 33 remains flat and the PCB can be placed on it. When the clamping plate 26 is loosened, the push rod 31 pushes the rubber belt 33 upward, so that the rubber belt 33 is tilted, and the small pieces of PCB cut from it can slide along it and fall into the discharge chute 34, completing the automatic unloading work, so that the stepping seat 8 can work continuously;

[0047] Two side seats 20 are symmetrically arranged on both sides of the stepping seat 8, and the driving shaft 21 is rotatably mounted on the side seat 20 through a bearing, and the two ends of the driving shaft 21 are respectively connected to the driving rod 24 and the driving wheel 28, and the stroke of the lifting rod 30 is smaller than the stroke of the clamping plate 26;

[0048] When the present invention is in use: first, the protective cover 2 of the present invention is on the upper surface of the equipment base 1, forming a semi-hidden working space. In this working space, the upper laser knife 5 is first installed through the main slide rail 3 and the secondary slide rail 4. Through the drive of the two slide rails, the upper laser knife 5 can be sent to any point on the horizontal plane to cut the PCB. In order to improve the cutting efficiency of the PCB, the present invention can also perform synchronous cutting from the bottom of the PCB. The lower cutting structure is located in the processing tank 6. The stepping seat 8 is installed by the guide rail 7. The stepping seat 8 can move step by step, and the lower laser knife 10 moves linearly along the driving rail 9, so that the PCB is cut piece by piece from one side. When cutting the PCB, the PCB must be The cutting in the present invention is gradually cut from one side to the other side, and the cutting is gradually cut from the starting point of the stepping seat 8 to the end point. Therefore, a main clamp structure is provided at the end point, and a secondary clamp structure that can be repeatedly opened and closed following the movement of the stepping seat 8 is provided, so that the PCB board is cut off from the whole board piece by piece, and the main clamp structure continuously generates pressure on the whole PCB board to keep the PCB board stable. The main clamp structure is installed by relying on the positioning plate 11 and the mounting seat 12 located at the cutting end point, and one side of the whole PCB board is placed on the positioning plate 11, and the other side is placed on the stepping seat 8. The pressure generated by the cylinder 13 acts on the lifting seat 14, driving the lifting seat 14 to move downward, and the pressing plate 15 thereon presses on the end of the circuit board. The pressing wheel 18 on the guide rod 16 is pressed on the middle part of the circuit board, close to the cutting position, and through the setting of the pressure rod 19, when the stepping seat 8 moves for step-by-step cutting, the position of the pressing wheel 18 can be switched by moving the slide seat 17, and it is always on the side of the cutting position. The PCB board is divided into a part to be cut and a part to be cut. The part to be cut is fixed by the positioning plate 11 and the main clamp structure, and the part to be cut is fixed by the movable clamping structure and the stepping seat 8, and the stepping seat 8 can be moved to remove the cut part and fix it on the end of the PCB board again. The clamping structure is driven by the driving shaft 21, and the crank slider structure composed of the driving rod 24, the first connecting rod 25 and the clamping plate 26 During operation, the clamping plate 26 can be driven to perform reciprocating lifting and lowering movements. When the clamping plate 26 descends, the PCB can be fixed between the clamping plate 26 and the stepping seat 8. When the cutting is completed, the clamping plate 26 will rise and release the PCB. At the same time, relying on the same driving shaft 21, the unloading structure is also installed, which can work synchronously with the clamping structure. When the clamping plate 26 releases the cut PCB, the unloading structure can guide it to fall from the stepping seat 8 into the discharge chute 34, completing automatic unloading, so that the stepping seat 8 can enter the no-load state. The crank slider structure composed of the driving wheel 28, the second connecting rod 29 and the lifting rod 30 moves synchronously with the crank slider structure composed of the driving rod 24 on the other side. When the clamping plate 26 is pressed on the PCB,The lifting rod 30 also drives the push rod 31 to be located below, so that the rubber belt 33 remains flat and the PCB can be placed on it. When the clamping plate 26 is loosened, the push rod 31 pushes the rubber belt 33 upward, so that the rubber belt 33 is tilted, and the small pieces of PCB cut from it can slide along it and fall into the discharge chute 34, completing the automatic unloading work, so that the stepping seat 8 can work continuously.

[0049] The above-mentioned embodiments are only preferred embodiments of the present invention, and cannot be used to limit the scope of protection of the present invention. Various changes made by ordinary technicians in this field based on the above-mentioned concepts without creative work all fall within the scope of protection of the present invention.

Claims

1. A picosecond laser cutting device for PCB production and processing, comprising a device base (1), characterized in that: A protective cover (2) is fixedly mounted on the equipment base (1), and a main slide rail (3) is fixedly connected to the protective cover (2), a secondary slide rail (4) is slidably mounted on the main slide rail (3), and an upper laser knife (5) is slidably mounted on the secondary slide rail (4), a processing tank (6) is provided on the equipment base (1), and a guide rail (7) is fixedly mounted in the processing tank (6), a stepping seat (8) is slidably mounted on the guide rail (7), and a driving rail (9) is fixedly connected to the stepping seat (8), and a lower laser knife (10) is slidably mounted on the driving rail (9), a positioning plate (11) is fixedly mounted in the processing tank (6), and a mounting seat (12) is fixedly connected to the positioning plate (11) The mounting seat (12) is connected to a main fixture structure having a follow-up clamping function, and the main fixture structure has a function of fixing the portion of the PCB to be cut; the stepping seat (8) is fixedly mounted with a side seat (20), and a driving shaft (21) is rotatably mounted on the side seat (20); the driving shaft (21) is connected to the driving seat (23) through a pulley pair (22), and the driving shaft (21) is connected to a clamping structure having a synchronous driving function and a discharge structure, and the clamping structure has a function of fixing the cut-off portion of the PCB; a discharge trough (34) is provided on the equipment base (1), and a push rod (35) is fixedly connected to the side seat (20), and the push rod (35) is in contact with the main fixture structure; The main clamp structure comprises a cylinder (13) fixedly connected to a mounting seat (12), a lifting seat (14) fixedly connected to the cylinder (13), a pressing plate (15) fixedly connected to the lifting seat (14), a guide rod (16) fixedly connected to the pressing plate (15), a sliding seat (17) slidably mounted on the guide rod (16), a pressing wheel (18) rotatably mounted on the sliding seat (17), and a pressing wheel (18) fixedly connected to the sliding seat (17). There is a pressure rod (19), the lifting seat (14) is fixedly connected to the telescopic end of the cylinder (13), and the pressure plate (15) is connected to the bottom of the lifting seat (14), the guide rod (16) is vertically connected to the side of the lifting seat (14), and the pressure wheel (18) is connected to the slide seat (17) through the wheel axle, the pressure rod (19) is connected to the side of the slide seat (17), and the pressure rod (19) is located on the moving path of the push rod (35).

2. The picosecond laser cutting device for PCB production and processing according to claim 1, characterized in that: The clamping structure comprises a driving rod (24) fixedly connected to the driving shaft (21), and a first connecting rod (25) is rotatably connected to the driving rod (24), and the first connecting rod (25) is rotatably connected to a clamping plate (26), and the clamping plate (26) is slidably mounted on a vertical guide rod (27).

3. The picosecond laser cutting device for PCB production and processing according to claim 2 is characterized in that: The driving rod (24) is connected to the end of the driving shaft (21), and the first connecting rod (25) is connected between the driving rod (24) and the clamping plate (26). The driving rod (24), the first connecting rod (25) and the clamping plate (26) constitute a crank slider structure, and the clamping plate (26) is connected to the vertical guide rod (27) through a sliding groove.

4. The picosecond laser cutting device for PCB production and processing according to claim 3 is characterized in that: The unloading structure comprises a driving wheel (28) fixedly connected to the driving shaft (21), and a second connecting rod (29) is rotatably connected to the driving wheel (28), a lifting rod (30) is rotatably connected to the second connecting rod (29), and a top rod (31) is fixedly connected to the lifting rod (30), and the top rod (31) is slidably installed in a limiting groove (32). The unloading structure also comprises a rubber belt (33) fixedly connected between the stepping seat (8) and the equipment base (1).

5. The picosecond laser cutting device for PCB production and processing according to claim 4 is characterized in that: The driving wheel (28) is connected to the end of the driving shaft (21), and the second connecting rod (29) is rotatably connected between the driving wheel (28) and the lifting rod (30). The driving wheel (28), the second connecting rod (29) and the lifting rod (30) constitute a crank slider structure, and the limiting groove (32) is arranged on the side seat (20). One end of the rubber belt (33) is connected to the groove of the stepping seat (8), and the other end is connected to the side of the discharge trough (34). The push rod (31) is located at the bottom of the rubber belt (33), and the push rod (31) is movably connected to the rubber belt (33).

6. The picosecond laser cutting device for PCB production and processing according to claim 5, characterized in that: Two side seats (20) are symmetrically arranged on both sides of the stepping seat (8), and the driving shaft (21) is rotatably mounted on the side seat (20) through a bearing, and the two ends of the driving shaft (21) are respectively connected to the driving rod (24) and the driving wheel (28), and the stroke of the lifting rod (30) is smaller than the stroke of the clamping plate (26).

7. The picosecond laser cutting device for PCB production and processing according to claim 1, characterized in that: The protective cover (2) is installed on one side of the equipment base (1), and a feeding plane is provided on the other side of the equipment base (1). An observation window is provided on the protective cover (2). The main slide rail (3) and the secondary slide rail (4) are vertically arranged, and the upper laser knife (5) is arranged with the blade head facing downward. The driving rail (9) is installed on one side of the stepping seat (8), and the blade head of the lower laser knife (10) is arranged with the blade head facing upward. The positioning plate (11) is located at the end point of the moving track of the stepping seat (8).

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