A PCB cutting machine

Abstract

The present invention discloses a PCB pin shearing machine, which relates to the field of PCB technology. The machine comprises a frame, an adjustment drive device, a flip drive device, and a three-axis manipulator. The frame is provided with two rotatable flip seats, each of which is provided with a first clamping plate and a second clamping plate that can slide up and down. A first clamping conveyor belt and a second clamping conveyor belt are respectively wound around the first clamping plate and the second clamping conveyor belt. One end of a PCB can be inserted between the first clamping conveyor belt and the second clamping conveyor belt to drive the PCB to move. The adjustment drive device is used to drive the first clamping plate and the second clamping plate to move toward or away from each other, so that the first clamping conveyor belt and the second clamping conveyor belt clamp or release the PCB. The flip drive device is used to drive the two flip seats to flip 180 degrees, thereby flipping the PCB on the flip seats 180 degrees. The ends of the three-axis manipulator are connected to a CCD camera and a pneumatic scissor. The PCB pin shearing machine can automatically flip a PCB and cut off excessively long pins on the PCB, thereby improving the efficiency of pin cutting.

Description

Technical Field

[0001] The present invention relates to the technical field of PCBs, in particular to a PCB pin cutting machine. Background Art

[0002] A printed circuit board (PCB) is a printed circuit board (PCB). PCBs typically include a variety of electronic components with pins, such as resistors, capacitors, and transistors. After the pins of the electronic components are soldered to the PCB substrate, to avoid short circuits and subsequent assembly problems caused by overly long pins, the overlong pins must be trimmed before the PCB is sent to the next processing step. In the prior art, manual methods are generally used to trim overlong pins on the PCB. Because the pins are located on the back of the PCB, the trimmer must first flip the PCB over and then use tools such as diagonal pliers to trim the overlong pins. This manual method of trimming pins is inefficient. On the other hand, automated trimming machines are also commonly used to trim overlong pins on the PCB. Because the pins are located on the back of the PCB, the PCB must first be manually flipped over so that the pins face upward. The PCB is then fed into the automated trimming machine, which trims the overlong pins. This additional flipping of the PCB reduces overall trimming efficiency. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a PCB pin cutting machine that can improve the efficiency of cutting pins.

[0004] A PCB shearing machine according to an embodiment of the present invention includes:

[0005] A frame, wherein the frame is provided with two rotatable turning seats, and each of the turning seats is provided with a first clamping plate and a second clamping plate that can slide up and down, the first clamping plate and the second clamping plate are distributed up and down, and a first clamping conveyor belt and a second clamping conveyor belt are respectively wound around the first clamping plate and the second clamping conveyor belt, and one end of a PCB can be extended between the first clamping conveyor belt and the second clamping conveyor belt to drive the PCB to move;

[0006] Both of the turning seats are provided with an adjustment drive device, and the adjustment drive device is used to drive the first clamping plate and the second clamping plate to move closer to or away from each other, so that the first clamping conveyor belt and the second clamping conveyor belt clamp or release the PCB;

[0007] A flip driving device, the flip driving device is arranged on the frame, and the flip driving device is used to drive the two flip seats to flip 180 degrees, so that the PCB on the flip seat is flipped 180 degrees;

[0008] A three-axis manipulator is arranged on the frame, and the end of the three-axis manipulator is connected to a CCD camera and a pneumatic scissors, the CCD camera is used to identify the position and length of the pins on the PCB, and the pneumatic scissors is used to cut off the pins on the PCB.

[0009] It has at least the following beneficial effects:

[0010] The PCB extends between the first and second clamping conveyors. An adjustable drive mechanism drives the first and second clamping plates on the flipping station toward each other, clamping the PCB between them. The flipping drive mechanism then flips the two flipping stations and the PCB on them 180°, positioning the pins on the PCB upward. A three-axis manipulator drives a CCD camera and pneumatic shears to move above the PCB. The CCD camera identifies the position and length of the pins on the PCB. The three-axis manipulator then drives the pneumatic shears to the pins, which then trim off any excess pins. After the pins are trimmed, the adjustable drive mechanism drives the first and second clamping plates away from each other, releasing the PCB from the first and second clamping conveyors. Finally, the first and second clamping conveyors transport the PCB to the next processing step. This PCB pin trimming machine automatically flips the PCB and trims any excess pins, improving pin removal efficiency.

[0011] According to the PCB shearing machine of an embodiment of the present invention, the adjustment drive device includes a pushing mechanism, a first slide rail and two first sliders, the first slide rail is connected to the flip seat, the length direction of the first slide rail is parallel to the up and down directions, the two first sliders can be slidably connected to the first slide rail, the two first sliders are respectively connected to the first clamping plate and the second clamping plate, and the pushing mechanism is used to drive the two first sliders to move closer to or away from each other.

[0012] According to the PCB shearing machine of an embodiment of the present invention, the pushing mechanism includes a first linear drive mechanism, a mounting block, a shift block and two shift rods, the mounting block is connected to the flip seat, the first slide rail is connected to the flip seat through the mounting block, a first long oblique through hole and a second long oblique through hole are provided on the shift block, the first long oblique through hole and the second long oblique through hole are at an angle, and the first long oblique through hole and the second long oblique through hole are symmetrical up and down, the two shift rods are respectively provided on the two first sliding blocks, and the two shift rods are respectively passed through the first long oblique through hole and the second long oblique through hole, the first linear drive mechanism is used to drive the shift block to slide, so that the two shift rods respectively drive the two first sliding blocks to approach or move away from each other.

[0013] According to the PCB shearing machine of the embodiment of the present invention, the pushing mechanism further includes an elastic element, one end of the elastic element is connected to the flip seat, and the other end of the elastic element is connected to one end of the shift block, so that the shift block is close to or away from the first clamping plate.

[0014] According to the PCB shearing machine of an embodiment of the present invention, the other end of the elastic element abuts against one end of the shift block toward the first clamping plate, and the opening direction of the angle formed by the first long oblique through hole and the second long oblique through hole is away from the first clamping plate.

[0015] According to the PCB shearing machine of an embodiment of the present invention, the first linear drive mechanism is arranged on the frame, and the output end of the first linear drive mechanism can be against the end of the shift block away from the first clamping plate to drive the shift block to move toward the first clamping plate.

[0016] According to the PCB shearing machine of an embodiment of the present invention, a second linear drive mechanism and a slidable mounting seat are provided on the frame, one of the two flip seats is rotatably connected to the mounting seat, and the output end of the second linear drive mechanism is connected to the mounting seat so that the flip seat on the mounting seat is close to or away from the other flip seat.

[0017] According to the PCB shearing machine of an embodiment of the present invention, the flipping drive device includes a rotary drive mechanism, a transmission assembly, two rotating shafts and two flipping wheels. The two rotating shafts are respectively provided on the two flipping seats, and the flipping seats are rotatably connected to the frame through the rotating shafts. The two flipping wheels are respectively connected to the two rotating shafts. The rotary drive mechanism is connected to the two flipping wheels through the transmission assembly to drive the two flipping seats to flip 180°.

[0018] According to the PCB shearing machine of the embodiment of the present invention, the end of the three-axis manipulator is connected to a connecting plate, and the pneumatic scissors are rotatably connected to the connecting plate.

[0019] The PCB shearing machine according to an embodiment of the present invention further includes a connecting piece, an arc-shaped hole is provided on the connecting plate, and the connecting piece is passed through the arc-shaped hole and connected to the pneumatic scissors.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1This is a structural diagram of a PCB shearing machine according to an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0024] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0025] Figure 4 for Figure 2 Schematic diagram of the structure of the mid-turn seat;

[0026] Figure 5 for Figure 4 A structural diagram of the middle flip seat from another perspective;

[0027] Figure 6 It is a schematic diagram of the structure of the adjustment drive device;

[0028] Figure 7 A schematic structural diagram of another perspective of the adjustment drive device;

[0029] Figure 8 It is a structural diagram of the connecting plate and the pneumatic scissors;

[0030] Reference numerals:

[0031] Frame 100; mounting base 110;

[0032] Turning seat 200; first clamping plate 210; first clamping conveyor belt 211; second clamping plate 220; second clamping conveyor belt 221;

[0033] Adjustment drive device 300; first slide rail 310; first slider 320; mounting block 330; shift block 340; first long oblique through hole 341; second long oblique through hole 342; shift rod 350; elastic element 360; first linear drive mechanism 370;

[0034] Flip drive device 400; flip wheel 410; rotating shaft 420;

[0035] Second linear drive mechanism 500 ; three-axis manipulator 600 ; CCD camera 610 ; pneumatic scissors 620 ; connecting plate 630 ; arc-shaped hole 631 . DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0038] In the description of the present invention, "a plurality" refers to more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] refer to Figures 1 to 3 According to an embodiment of the present invention, a PCB shearing machine includes:

[0041] The frame 100 is provided with two rotatable turning seats 200. Both turning seats 200 are provided with a first clamping plate 210 and a second clamping plate 220 that can slide up and down. The first clamping plate 210 and the second clamping plate 220 are arranged vertically. A first clamping conveyor belt 211 and a second clamping conveyor belt 221 are respectively wound around the first clamping plate 210 and the second clamping conveyor belt 221. One end of a PCB can be inserted between the first clamping conveyor belt 211 and the second clamping conveyor belt 221 to drive the PCB to move.

[0042] The two turning seats 200 are each provided with an adjustment drive device 300, which is used to drive the first clamping plate 210 and the second clamping plate 220 to move closer to or away from each other, so that the first clamping conveyor belt 211 and the second clamping conveyor belt 221 clamp or release the PCB;

[0043] The flip drive device 400 is provided on the frame 100 and is used to drive the two flip seats 200 to flip 180 degrees, so that the PCB on the flip seat 200 flips 180 degrees;

[0044] The three-axis manipulator 600 is arranged on the frame 100. The end of the three-axis manipulator 600 is connected to a CCD camera 610 and a pneumatic scissors 620. The CCD camera 610 is used to identify the position and length of the pins on the PCB, and the pneumatic scissors 620 are used to cut off the pins on the PCB.

[0045] It can be understood that the PCB extends between the first clamping conveyor belt 211 and the second clamping conveyor belt 221, and the adjustment drive device 300 drives the first clamping plate 210 and the second clamping plate 220 on the flip seat 200 to move closer to each other, so that the first clamping conveyor belt 211 and the second clamping conveyor belt 221 clamp the PCB, and the flip drive device 400 drives the two flip seats 200 and the PCBs on the two flip seats 200 to flip 180 degrees, so that the pins on the PCB face upward, and the three-axis manipulator 600 drives the CCD camera 610 and the pneumatic scissors 62 0 moves above the PCB. The CCD camera 610 identifies the position and length of the pins on the PCB. The three-axis robot 600 drives the pneumatic scissors 620 to the pins, which then trim the overlong pins. After the pins are trimmed, the adjustment drive 300 drives the first clamping plate 210 and the second clamping plate 220 away from each other, causing the first and second clamping conveyor belts 211 and 221 to release the PCB. Finally, the first and second clamping conveyor belts 211 and 221 convey the PCB to the next processing step. This PCB pin trimming machine automatically flips the PCB and trims overlong pins, improving pin trimming efficiency.

[0046] As an embodiment of the present invention, the flipping drive device 400 may include two motors, both of which are arranged on the frame 100, and the output ends of the two motors are respectively connected to the two flipping seats 200, and the two motors are used to simultaneously drive the two flipping seats 200 and the PCBs on the two flipping seats 200 to flip 180°.

[0047] As an embodiment of the present invention, the PCB shearing machine further includes a first conveyor belt and a second conveyor belt, which can convey the PCB between the first clamping conveyor belt 211 and the second clamping conveyor belt 221 .

[0048] refer to Figures 4 to 7The adjustment drive device 300 includes a pushing mechanism, a first slide rail 310 and two first sliders 320. The first slide rail 310 is connected to the flip seat 200. The length direction of the first slide rail 310 is parallel to the up and down directions. The two first sliders 320 can be slidably connected to the first slide rail 310. The two first sliders 320 are respectively connected to the first clamping plate 210 and the second clamping plate 220. The pushing mechanism is used to drive the two first sliders 320 to move closer to or away from each other. The sliding mechanism includes a first linear drive mechanism 370, a mounting block 330, a shift block 340 and two shift rods 350. The mounting block 330 is connected to the flip seat 200. The first slide rail 310 is connected to the flip seat 200 through the mounting block 330. A first long oblique through hole 341 and a second long oblique through hole 342 are provided on the shift block 340. The first long oblique through hole 341 and the second long oblique through hole 342 form an angle, and the first long oblique through hole 341 and the second long oblique through hole 342 are symmetrical up and down. The two shift rods 350 are respectively provided on the two first sliders 320, and the two shift rods 350 are respectively provided in the first long oblique through hole 341 and the second long oblique through hole 342. The first linear drive mechanism 370 is used to drive the shift block 340 to slide, so that the two shift rods 350 respectively drive the two first sliders 320 to approach or move away from each other.

[0049] It can be understood that the two shift rods 350 are respectively provided on the two first sliders 320, and the two shift rods 350 are respectively passed through the first long oblique through hole 341 and the second long oblique through hole 342. The first linear drive mechanism 370 drives the shift block 340 to move, and the two shift rods 350 are respectively squeezed against the inner wall of the first long oblique through hole 341 and the inner wall of the second long oblique through hole 342, and the two shift rods 350 begin to move. Since the first long oblique through hole 341 and the second long oblique through hole 342 form an angle, and the first long oblique through hole 341 and the second long oblique through hole 342 are symmetrical up and down, the two shift rods 350 can move in opposite directions, thereby achieving the effect of the two first sliders 320 driving the first clamping plate 210 and the second clamping plate 220 to move closer to or away from each other, thereby achieving the purpose of clamping or releasing the PCB by the first clamping conveyor belt 211 and the second clamping conveyor belt 221.

[0050] As an embodiment of the present invention, the driving direction of the first linear drive mechanism 370 is perpendicular to the up-down direction, and the driving direction of the first linear drive mechanism 370 is perpendicular to the conveying direction of the first clamping conveyor belt 211. The first linear drive mechanism 370 can be a first cylinder, the cylinder body of the first cylinder is connected to the turning seat 200, and the piston rod of the first cylinder is connected to the shifting rod 350.

[0051] refer to Figure 6 and Figure 7The pushing mechanism further includes an elastic element 360, one end of which is connected to the flip seat 200, and the other end of which is connected to one end of the shift block 340, thereby moving the shift block 340 toward or away from the first clamping plate 210. In one embodiment of the present invention, one end of the elastic element 360 is connected to the flip seat 200, and the other end of the elastic element 360 is connected to the end of the shift block 340 away from the first clamping plate 210. The angle formed by the first elongated oblique through-hole 341 and the second elongated oblique through-hole 342 faces the first clamping plate 210. At this time, the elastic element 360 pushes the shift block 340 toward the first clamping plate 210, causing the two shift rods 350 to move toward each other, thereby achieving the effect of the two first sliders 320 respectively driving the first clamping plate 210 and the second clamping plate 220 toward each other, thereby achieving the purpose of the first clamping conveyor belt 211 and the second clamping conveyor belt 221 clamping the PCB. The elastic element 360 may be a spring.

[0052] refer to Figure 6 and Figure 7 The other end of the elastic element 360 abuts against the end of the shift block 340 facing the first clamping plate 210, and the opening direction of the angle formed by the first elongated oblique through-hole 341 and the second elongated oblique through-hole 342 is away from the first clamping plate 210. It is understood that at this time, the elastic element 360 pushes the shift block 340 toward the direction away from the first clamping plate 210, causing the two shift rods 350 to move closer together, thereby achieving the effect of the two first sliders 320 respectively driving the first clamping plate 210 and the second clamping plate 220 toward each other, thereby achieving the purpose of the first clamping conveyor belt 211 and the second clamping conveyor belt 221 clamping the PCB.

[0053] refer to Figure 6 and Figure 7 The first linear drive mechanism 370 is disposed on the frame 100 , and the output end of the first linear drive mechanism 370 can abut against an end of the shift block 340 away from the first clamping plate 210 to drive the shift block 340 to move toward the first clamping plate 210 .

[0054] It is understood that the first linear drive mechanism 370 is mounted on the frame 100 and does not rotate with the tilting base 200, facilitating installation of the first linear drive mechanism 370. The output end of the first linear drive mechanism 370 can abut against the end of the shift block 340 away from the first clamping plate 210. The first linear drive mechanism 370 drives the shift block 340 toward the first clamping plate 210, compressing the elastic element 360 and moving the two shift rods 350 away from each other. This allows the two first sliders 320 to respectively drive the first clamping plate 210 and the second clamping plate 220 away from each other, thereby achieving the purpose of releasing the first clamping conveyor belt 211 and the second clamping conveyor belt 221 from the PCB. After the shift block 340 loses contact with the output end of the first linear drive mechanism 370, the elastic element 360 recovers, and the elastic element 360 pushes the shift block 340 to move away from the first clamping plate 210, so that the two shift rods 350 approach each other, thereby achieving the effect of the two first sliders 320 respectively driving the first clamping plate 210 and the second clamping plate 220 to approach each other, thereby achieving the purpose of the first clamping conveyor belt 211 and the second clamping conveyor belt 221 clamping the PCB.

[0055] refer to Figure 1 and Figure 2 The frame 100 is provided with a second linear drive mechanism 500 and a slidable mounting base 110. One of the two flip seats 200 is rotatably connected to the mounting base 110. The output end of the second linear drive mechanism 500 is connected to the mounting base 110 to move the flip seat 200 on the mounting base 110 closer to or away from the other flip seat 200. It is understood that the mounting base 110 is slidably connected to the frame 100, one of the flip seats 200 is rotatably connected to the mounting base 110, and the second linear drive mechanism 500 can drive the mounting base 110 to slide. The sliding direction of the mounting base 110 is perpendicular to the up-down direction and the conveying direction of the first clamping conveyor belt 211. By sliding the mounting base 110, the distance between the flip seat 200 on the mounting base 110 and the other flip seat 200 can be changed to accommodate PCBs of different specifications and sizes, thereby improving the flexibility of the PCB shearing machine. The second linear drive mechanism 500 may be a second cylinder, a cylinder body of the second cylinder is connected to the frame 100 , and a piston rod of the second cylinder is connected to the mounting seat 110 .

[0056] As an embodiment of the present invention, the second linear drive mechanism 500 includes a second slide rail, a second slider, a nut, a screw rod and a second motor, the second motor is connected to the frame 100, the length direction of the second slide rail is perpendicular to the up and down direction, the length direction of the second slide rail is perpendicular to the conveying direction of the first clamping conveyor belt 211, the second slide rail is connected to the frame 100, the second slider is connected to the mounting seat 110 and is slidably connected to the second slide rail, one end of the second screw rod is rotatably connected to the frame 100, the other end of the second screw rod is connected to the output end of the second motor, and the nut is connected to the mounting seat 110 and is threadedly engaged with the second screw rod. It can be understood that the second motor drives the second screw rod to rotate, and since the nut on the mounting seat 110 is threadedly engaged with the second screw rod, the mounting seat 110 can slide on the second slide rail through the second slider, thereby achieving the purpose of adjusting the distance between the flip seat 200 on the mounting seat 110 and the other flip seat 200.

[0057] refer to Figure 1 and Figure 2 The flipping drive device 400 includes a rotation drive mechanism, a transmission assembly, two rotating shafts 420 and two flip wheels 410. The two rotating shafts 420 are respectively provided on the two flip seats 200. The flip seats 200 are rotatably connected to the frame 100 through the rotating shafts 420. The two flip wheels 410 are respectively connected to the two rotating shafts 420. The rotation drive mechanism is connected to the two flip wheels 410 through the transmission assembly to drive the two flip seats 200 to flip 180°.

[0058] As an embodiment of the present invention, the transmission assembly includes a transmission rod, a first transmission wheel, a second transmission wheel and two transmission belts. The first transmission wheel is rotatably connected to the mounting seat 110. A first through hole is provided on the first transmission wheel, and a second through hole is provided on the mounting seat 110. The second transmission wheel is rotatably connected to the frame 100. The length direction of the transmission rod is perpendicular to the up and down direction. The length direction of the transmission rod is perpendicular to the conveying direction of the first clamping conveyor belt 211. A notch is provided on the transmission rod. One end of the transmission rod is connected to the second transmission wheel, and the other end of the transmission rod is passed through the first through hole and the second through hole. The longitudinal cross-sectional shape of the first through hole is the same as the longitudinal cross-sectional shape of the transmission rod, so that the transmission rod can both drive the first transmission wheel to rotate and make the first transmission wheel slide on the transmission rod; the first transmission wheel and the second transmission wheel are respectively connected to the two flip wheels 410 through transmission belts, and the rotation drive mechanism is connected to the second transmission wheel.

[0059] It is understood that the rotary drive mechanism drives the second transmission wheel and the transmission rod to rotate, and the transmission rod drives the first transmission wheel. Since the first and second transmission wheels are respectively connected to the two flip wheels 410 via a transmission belt, the two flip wheels 410 rotate, thereby achieving the purpose of flipping the two flip seats 200 and the PCBs on the two flip seats 200 by 180 degrees. The rotary drive mechanism can be a third motor connected to the frame 100. The output end of the third motor is provided with a pulley, which is connected to the second transmission wheel via a belt.

[0060] As one embodiment of the present invention, two adjustment drive devices 300 are provided on each of the two flip seats 200. The two adjustment drive devices 300 on the flip seats 200 are symmetrically arranged about the middle section of the flip seats 200, and the rotation shaft 420 is provided on the middle section of the flip seats 200. It is understood that because the rotation shaft 420 is provided on the middle section of the flip seats 200 and the two adjustment drive devices 300 on the flip seats 200 are symmetrically arranged about the middle section of the flip seats 200, after the flip seats 200 are flipped 180°, the next pin cutting operation can be performed without flipping the flip seats 200 back again, thereby shortening the pin cutting process of the PCB pin cutting machine and improving the pin cutting efficiency of the PCB pin cutting machine.

[0061] refer to Figure 3 and Figure 8 The end of the three-axis manipulator 600 is connected to a connecting plate 630, and the pneumatic scissors 620 are rotatably connected to the connecting plate 630. It is understandable that the pin arrangements on PCBs of different specifications are different. The pin arrangements on some PCBs are relatively dense. The dense pins will make it difficult for the pneumatic scissors 620 to accurately cut off longer pins, or even possible to cut off the pins at all. By rotating the pneumatic scissors 620 to tilt the pneumatic scissors 620, the pneumatic scissors 620 can approach and cut the pins from the upper and oblique sides of the densely arranged pins; on the other hand, the posture of the pneumatic scissors 620 can also be adjusted by rotating to adapt to PCBs of different specifications.

[0062] refer to Figure 8 The PCB shearing machine further includes a connecting member. An arc-shaped hole 631 is formed on the connecting plate 630. The connecting member is passed through the arc-shaped hole 631 and connected to the pneumatic shears 620. It is understood that the connecting member can be a bolt, which passes through the arc-shaped hole 631 and is threadedly connected to the pneumatic shears 620. After rotating and adjusting the posture of the pneumatic shears 620, the bolt is tightened to fix the pneumatic shears 620 to the connecting plate 630, thereby preventing the pneumatic shears 620 from shaking during operation of the PCB shearing machine and improving the stability of the PCB shearing machine.

[0063] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A PCB cutting machine, characterized in that: include: A frame, wherein the frame is provided with two rotatable turning seats, and each of the turning seats is provided with a first clamping plate and a second clamping plate that can slide up and down, the first clamping plate and the second clamping plate are distributed up and down, and a first clamping conveyor belt and a second clamping conveyor belt are respectively wound around the first clamping plate and the second clamping conveyor belt, and one end of a PCB can be extended between the first clamping conveyor belt and the second clamping conveyor belt to drive the PCB to move; The two flip seats are each provided with an adjustment drive device, and the adjustment drive device includes a first slide rail, a first linear drive mechanism, a mounting block, a shift block, an elastic element, two first sliders and two shift rods, the mounting block is connected to the flip seat, the first slide rail is connected to the flip seat through the mounting block, the length direction of the first slide rail is parallel to the up and down direction, the two first sliders can be slidably connected to the first slide rail, the two first sliders are respectively connected to the first clamping plate and the second clamping plate, the shift block is provided with a first long oblique through hole and a second long oblique through hole, the first long oblique through hole The first and second long oblique through holes form an included angle, and the first and second long oblique through holes are symmetrical in vertical direction. The two shift rods are respectively provided on the two first sliders, and the two shift rods are respectively passed through the first and second long oblique through holes. One end of the elastic element is connected to the flip seat, and the other end of the elastic element is connected to one end of the shift block. The first linear drive mechanism is used to drive the shift block to slide, so that the two shift rods respectively drive the two first sliders to move closer to or away from each other, and the first clamping conveyor belt and the second clamping conveyor belt clamp or release the PCB. A flip driving device, the flip driving device is arranged on the frame, and the flip driving device is used to drive the two flip seats to flip 180 degrees, so that the PCB on the flip seat is flipped 180 degrees; A three-axis manipulator is provided on the frame, and a CCD camera and a pneumatic scissors are connected to the end of the three-axis manipulator, wherein the CCD camera is used to identify the position and length of the pins on the PCB, and the pneumatic scissors are used to cut the pins on the PCB; The frame is provided with a second linear drive mechanism and a slidable mounting seat, one of the two flip seats is rotatably connected to the mounting seat, and the output end of the second linear drive mechanism is connected to the mounting seat so that the flip seat on the mounting seat is close to or away from the other flip seat.

2. The PCB cutting machine according to claim 1, characterized in that: The other end of the elastic element abuts against one end of the shift block toward the first clamping plate, and the opening direction of the angle formed by the first long oblique through hole and the second long oblique through hole is away from the first clamping plate.

3. The PCB cutting machine according to claim 2, characterized in that: The first linear drive mechanism is provided on the frame, and an output end of the first linear drive mechanism can abut against an end of the shift block away from the first clamping plate to drive the shift block to move toward the first clamping plate.

4. The PCB cutting machine according to claim 1, characterized in that: The flipping drive device includes a rotary drive mechanism, a transmission assembly, two rotating shafts and two flipping wheels. The two rotating shafts are respectively provided on the two flipping seats. The flipping seats are rotatably connected to the frame through the rotating shafts. The two flipping wheels are respectively connected to the two rotating shafts. The rotary drive mechanism is connected to the two flipping wheels through the transmission assembly to drive the two flipping seats to flip 180°.

5. The PCB cutting machine according to claim 1, characterized in that: The end of the three-axis manipulator is connected to a connecting plate, and the pneumatic scissors are rotatably connected to the connecting plate.

6. The PCB cutting machine according to claim 5, characterized in that: It also includes a connecting piece, an arc-shaped hole is opened on the connecting plate, and the connecting piece is passed through the arc-shaped hole and connected to the pneumatic scissors.

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