Punching equipment for PCB (printed circuit board)

Abstract

The utility model discloses punching equipment for a PCB (printed circuit board), which comprises an XY moving platform, the XY moving platform comprises a base, an X-axis moving platform and a Y-axis moving platform from bottom to top, the X-axis moving platform can carry the Y-axis moving platform to move along the X-axis direction above the base, the Y-axis moving platform can independently move along the Y-axis direction above the X-axis moving platform, and the X-axis moving platform can move along the Y-axis direction above the X-axis moving platform. The X-axis direction and the Y-axis direction are perpendicular to each other, and windows are formed in the middle of the base, the middle of the X-axis moving platform and the middle of the Y-axis moving platform. The clamping assembly is installed on the upper surface of the Y-axis moving platform and used for clamping the PCB; the drilling machine is arranged below the XY moving platform; and the drilling machine driving assembly is used for driving the drilling machine to move up and down in the vertical direction. In the working process, the mechanical arm for taking and placing the PCB works above the XY moving platform, the punching machine works below the XY moving platform, and therefore the problem that the action process is tedious due to the fact that the mechanical arm and the punching machine need to be avoided from each other can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a punching device for a PCB circuit board. Background Art

[0002] PCB circuit boards are an indispensable component of electronic devices. They transfer circuit patterns onto printed circuits, forming a functional circuit structure that enables electrical connections between electronic components. These circuit boards are manufactured using electronic printing techniques, hence the name "printed circuit board." Their primary function is to support, secure, and connect electronic components. By interconnecting these components through various circuits, they enable the proper functioning of electronic devices.

[0003] During the production process of PCB circuit boards, the PCB circuit boards need to be punched. The existing punching process is that after the robot transfers the PCB circuit board to the punching platform, the punching machine punches holes on the PCB circuit board from top to bottom. In this process, the robot and the punching machine are both operating above the PCB circuit board. The process is roughly as follows: first, the robot needs to place the PCB circuit board on the punching platform, and then the robot moves away. Then the punching machine moves horizontally to above the punching point and starts the punching operation. After the punching is completed, the punching machine moves horizontally again. After that, the robot moves above the PCB circuit board, grabs the PCB circuit board and transfers it to the next process. It can be seen that during the punching process, the robot and the punching machine work in rotation. The robot and the punching machine need to move to the top of the punching platform in turn, and the action process is slightly cumbersome. In this regard, the applicant believes that it is necessary to design a punching device to simplify the punching process during the punching process. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a punching device for PCB circuit boards, which can simplify the punching process and eliminate the need for the manipulator and the punching machine to move to the top of the punching platform in turn for operation.

[0005] The technical solution adopted by the present invention to solve the technical problem is: providing a punching device for a PCB circuit board, which includes:

[0006] An XY movable platform, the XY movable platform including, from bottom to top, a base, an X-axis movable platform, and a Y-axis movable platform; the X-axis movable platform can carry the Y-axis movable platform to move along the X-axis direction above the base, and the Y-axis movable platform can move alone along the Y-axis direction above the X-axis movable platform, wherein the X-axis direction and the Y-axis direction are both horizontal and perpendicular to each other in space, and windows are provided in the middle of the base, the X-axis movable platform, and the Y-axis movable platform;

[0007] A clamping assembly, mounted on the upper surface of the Y-axis moving platform, for clamping the PCB to be punched;

[0008] A drilling machine, wherein the drilling machine is arranged below the XY movable platform, and the drill bit of the drilling machine points vertically upward;

[0009] A drilling machine driving assembly is used to drive the drilling machine to move up and down in a vertical direction.

[0010] Furthermore, an X-axis guide rail is provided above the base;

[0011] An X-axis sliding block is provided below the X-axis movable platform, and the X-axis sliding block matches the X-axis guide rail and can slide along the X-axis guide rail. A Y-axis guide rail is also provided above the X-axis movable platform, and the Y-axis guide rail and the X-axis guide rail both extend in the horizontal direction and are perpendicular to each other in space.

[0012] A Y-axis sliding block is provided below the Y-axis moving platform, and the Y-axis sliding block matches the Y-axis guide rail and can slide along the Y-axis guide rail.

[0013] Furthermore, the X-axis mobile platform is further provided with a first driving mechanism for driving the X-axis mobile platform to carry the Y-axis mobile platform to move above the base along the X-axis direction;

[0014] The Y-axis moving platform is further provided with a second driving mechanism for driving the Y-axis moving platform to move independently above the X-axis moving platform along the Y-axis direction.

[0015] Furthermore, the first driving mechanism is a first screw module, the first screw module is fixed on the base, and the first slider of the first screw module is fixedly connected to the first fixing plate on the side of the X-axis moving platform;

[0016] The second driving mechanism is a second screw module, which is fixed on the base. The second slider of the second screw module is fixedly connected to the second fixed plate on the side of the Y-axis moving platform.

[0017] Furthermore, the clamping assembly includes four cylinders and four clamps; the four cylinders are respectively fixed in the front, back, left and right directions of the opening window in the middle of the Y-axis moving platform, and the extension direction of the piston rod of the cylinder points to the opening window; the four clamps are respectively fixed at the ends of the piston rods of the four cylinders.

[0018] Furthermore, the clamping plate is formed with a bottom table and a top boss on a side away from the cylinder, wherein the protrusion height of the top boss is smaller than the protrusion height of the bottom table, and a clamping groove is formed between the bottom table and the top boss.

[0019] Furthermore, the drilling machine drive assembly includes a screw, a sliding block, a guide rod and a motor;

[0020] The screw rod is arranged vertically, and a screw rod nut is sleeved on the screw rod and engaged with the screw rod thread;

[0021] The sliding block is fixed to the screw nut;

[0022] The guide rod is also arranged vertically, and the sliding block is slidably sleeved on the guide rod;

[0023] The motor is in transmission connection with the screw rod to drive the screw rod to rotate around the axis;

[0024] The drilling machine is fixed on the sliding block.

[0025] Furthermore, the drilling machine drive assembly also includes a base and a top plate;

[0026] The guide rod is fixed between the base and the top plate;

[0027] The top of the screw rod passes through the top plate from bottom to top and is connected to the second gear;

[0028] The motor is fixed below the top plate, and the output shaft of the motor passes through the top plate from bottom to top and is connected to the first gear; wherein the first gear and the second gear are meshed with each other.

[0029] Furthermore, there are two guide rods, one on the left and one on the right, fixed between the base and the top plate at intervals, and the sliding block is slidably sleeved on the two guide rods at the same time.

[0030] The beneficial effects of the present invention are:

[0031] During operation, the robot that takes and places the PCB circuit board operates above the XY movable platform, placing or removing the PCB circuit board from above the XY movable platform, and the drilling machine operates below the XY movable platform, drilling holes from bottom to top. Therefore, compared with the existing drilling process, the robot and the drilling machine are respectively arranged on the upper and lower sides of the working platform, avoiding the problem of cumbersome movement process caused by both being arranged above the working platform at the same time and having to avoid each other when working in turns. That is, the drilling process can be simplified, that is, after the robot places the PCB circuit board above the XY movable platform, it does not need to make way for the drilling machine, but only needs to retreat a certain distance upward, and the drilling machine below can drill holes from bottom to top. After drilling, the drilling machine does not need to make way for the robot, but only needs to retract the tool downward. Then the robot can grab the PCB circuit board 500 from above and transfer it to the next process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of the punching device for PCB circuit boards provided by the utility model;

[0033] Figure 2 yes Figure 1 Separate views of the XY moving stage and the clamping assembly;

[0034] Figure 3 yes Figure 2 Enlarged view within the middle dotted line range;

[0035] Figure 4 yes Figure 3 Exploded diagram;

[0036] Figure 5 yes Figure 4 A view from an upward angle;

[0037] Figure 6 yes Figure 1 Isolated view of the drill and drill drive assembly;

[0038] Figure 7 yes Figure 1 Reference diagram of the punching equipment working

[0039] Figure 8 yes Figure 7 Enlarged view within the dotted line range. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to specific embodiments, but the implementation manner of the present invention is not limited thereto.

[0041] See also Figures 1 to 6The utility model provides a punching device for a PCB circuit board, which includes: an XY moving platform 100, a clamping assembly 200, a drilling machine 300 and a drilling machine driving assembly 400.

[0042] See also Figure 1 and Figure 4 The XY movable platform 100 includes, from bottom to top, a base 110, an X-axis movable platform 120, and a Y-axis movable platform 130. The X-axis movable platform 120 can carry the Y-axis movable platform 130 and move along the X-axis direction above the base 110, and the Y-axis movable platform 130 can move independently along the Y-axis direction above the X-axis movable platform 120. The X-axis direction and the Y-axis direction are both horizontal and perpendicular to each other in space. In addition, a window 1a is provided in the middle of the base 110, the X-axis movable platform 120, and the Y-axis movable platform 130. In short, the XY movable platform 100 itself has an XY coordinate system, wherein the X-axis movable platform 120 can carry the Y-axis movable platform 130 and move along the X-axis direction, and the Y-axis movable platform 130 can move independently along the Y-axis direction.

[0043] See also Figure 1 、 Figure 2 and Figure 4 The clamping assembly 200 is installed on the upper surface of the Y-axis moving platform 130 and is used to clamp the PCB circuit board to be punched.

[0044] See also Figure 1 and Figure 6 The drilling machine 300 is arranged below the XY moving platform 100, and the drill bit of the drilling machine 300 points vertically upward.

[0045] See also Figure 1 and Figure 6 The drilling machine driving assembly 400 is used to drive the drilling machine 300 to move up and down in the vertical direction.

[0046] The setting of the opening window 1a is conducive to the drilling machine 300 drilling holes on the PCB circuit board from bottom to top.

[0047] In a preferred embodiment, see Figure 4 Two mutually parallel X-axis guide rails 111 are spaced apart above the base 110 , and the X-axis guide rails 111 are sunken trough guide rails.

[0048] See also Figure 4 and Figure 5Two mutually parallel X-axis sliders 121 are arranged below the X-axis movable platform 120. The two X-axis sliders 121 are respectively embedded in the two X-axis guide rails 111 and can slide along them. Two mutually parallel Y-axis guide rails 122 are also arranged above the X-axis movable platform 120. The Y-axis guide rails 122 are also sunken trough guide rails, and the Y-axis guide rails 122 and the X-axis guide rails 111 extend in the horizontal direction and are perpendicular to each other in space.

[0049] See also Figure 4 and Figure 5 Two Y-axis sliding blocks 131 parallel to each other are provided below the Y-axis moving platform 130 . The two Y-axis sliding blocks 131 are respectively embedded in the two Y-axis guide rails 122 and can slide along them.

[0050] Furthermore, the X-axis mobile platform 120 is further equipped with a first driving mechanism for driving the X-axis mobile platform 120 to carry the Y-axis mobile platform 130 and move along the X-axis direction above the base 110. The Y-axis mobile platform 130 is further equipped with a second driving mechanism for driving the Y-axis mobile platform 130 to move alone along the Y-axis direction above the X-axis mobile platform 120.

[0051] Preferably, see Figure 4 and Figure 5 , the first driving mechanism is a first screw module 140, and the first screw module 140 is fixed to the first vertical plate 112 of the base 110. The first screw module 140 is an existing mechanism and can be directly purchased from the market. It has a slider, and the slider of the first screw module 140 is referred to as the first slider 141 here. The first slider 141 is fixedly connected to the first fixed plate 123 on the side of the X-axis movable platform 120. Therefore, when the first screw module 140 is working, the movement of the first slider 141 can drive the X-axis movable platform 120 and the Y-axis movable platform 130 to move along the X-axis guide rail 111 above the base 110, that is, to realize the movement of the X-axis movable platform 120 and the Y-axis movable platform 130 along the X-axis direction.

[0052] Preferably, see Figure 4 and Figure 5The second driving mechanism is a second screw module 150, which is fixed to the second vertical plate 113 of the base 110. The second screw module 150 is also an existing mechanism and can be purchased directly from the market. It also has a slider, which is referred to as the second slider 151 here. The second slider 151 is fixedly connected to the second fixed plate 132 on the side of the Y-axis moving platform 130. Therefore, when the second screw module 150 is working, the movement of the second slider 151 can drive the Y-axis moving platform 130 to move along the Y-axis guide rail 122 above the X-axis moving platform 120, that is, to realize the movement of the Y-axis moving platform 130 along the Y-axis direction.

[0053] Therefore, when the PCB circuit board 500 is placed at the window 1a and clamped by the clamping assembly 200, the PCB circuit board 500 can be moved in the X-axis direction and / or the Y-axis direction by controlling the operation of the first screw module 140 and the second screw module 150, so as to achieve the purpose of adjusting the coordinate position of the PCB circuit board 500, so that the point to be punched can be moved to directly above the drilling machine 300 (such as when the drill bit 310 of the drilling machine 300 is facing the coordinate origin, the point to be punched can be moved to the coordinate origin), and then the drilling machine 300 below can be used to punch holes at the points to be punched on the PCB circuit board 500.

[0054] In a preferred embodiment, see Figure 2 and Figure 3 The clamping assembly 200 includes four cylinders 210 and four clamping plates 220. The four cylinders 210 are fixed to the front, back, left, and right sides of the window 1a in the middle of the Y-axis movable platform 130, with the piston rods of the cylinders 210 extending toward the window 1a. The four clamping plates 220 are fixed to the ends of the piston rods of the four cylinders 210.

[0055] Preferably, if Figure 3 As shown, the clamping plate 220 is formed with a bottom table 221 and a top boss 222 on the side away from the cylinder 210, wherein the protrusion height of the top boss 222 is smaller than the protrusion height of the bottom table 221, and a clamping groove 223 is formed between the bottom table 221 and the top boss 222.

[0056] During operation, the four cylinders 210 first push the four clamping plates 220 to move to predetermined positions. The predetermined positions ensure that when the robot transfers the PCB circuit board 500 to the window 1a, when the PCB circuit board 500 is placed downward, the PCB circuit board 500 is placed on the bottom table 221 of the four clamping plates 220 without colliding with the top bosses 222. Figure 7 and Figure 8The bottom surfaces 221 of the four clamping plates 220 support the PCB 500, ensuring that the bottom of the PCB 500 is supported and can be placed in the window 1a. After the robot has placed the PCB 500, the subsequent action is to clamp and secure the PCB 500. During this process, the four cylinders 210 will synchronously push the four clamping plates 220 forward, using the clamping grooves 223 between the bottom surfaces 221 and the top bosses 222 to press the four edges of the PCB 500 tightly, thereby clamping and securing the PCB 500 and facilitating the subsequent drilling operation on the PCB 500.

[0057] In a preferred embodiment, see Figure 6 The drilling machine drive assembly 400 includes a screw rod 410, a sliding block 420, a guide rod 430 and a motor 440. The screw rod 410 is arranged vertically, and a screw nut 411 is sleeved on the screw rod 410 and is threadedly engaged with the screw rod 410. The sliding block 420 is provided with a through hole, which sleeves the screw rod 410 and the screw nut 411 therein, and the sliding block 420 is fixedly connected to the screw nut 411. The guide rod 430 is also arranged vertically, and the sliding block 420 is slidably sleeved on the guide rod 430. The motor 440 is transmission-connected to the screw rod 410 to drive the screw rod 410 to rotate around the axis. The drilling machine 300 is fixed on the sliding block 420.

[0058] For further information, see Figure 6 The drilling machine drive assembly 400 also includes a base 450 and a top plate 460. The guide rod 430 is fixed between the base 450 and the top plate 460. The bottom of the screw rod 410 is connected to the base 450 through a bearing 490, and the top of the screw rod 410 passes through the top plate 460 from bottom to top and is connected to the second gear 480. The screw rod 410 is also connected to the top plate 460 through a bearing at the position where it passes through the top plate 460. The motor 440 is fixed below the top plate 460, and the output shaft of the motor 440 passes through the top plate 460 from bottom to top and is connected to the first gear 470. The first gear 470 and the second gear 480 are meshed with each other.

[0059] Preferably, see Figure 6 There are two guide rods 430 , and the two guide rods 430 are fixed between the base 450 and the top plate 460 at intervals, one on the left and one on the right. The sliding block 420 is slidably sleeved on the two guide rods 430 at the same time.

[0060] Therefore, when the motor 440 is working, the mutual engagement of the first gear 470 and the second gear 480 can drive the screw rod 410 to rotate around the axis. When the screw rod 410 rotates, it will drive the sliding block 420 to move vertically through the screw nut 411. The vertical movement of the sliding block 420 will drive the drilling machine 300 fixed thereto to move vertically, thereby driving the drilling machine 300 to move upward to feed and downward to retract when drilling.

[0061] The drilling machine 300 is an existing device that can be purchased from the market and then fixed to the sliding block 420. When the drilling machine 300 is in operation, it drives the drill bit 310 at the front end to rotate to achieve the drilling operation. The drill bit 310 is replaceable and can be selected according to the actual hole diameter.

[0062] After the drilling machine 300 is installed, the drill bit 310 is located directly below the coordinate origin of the XY coordinate system of the XY moving platform 100 .

[0063] The working principle of this utility model is as follows:

[0064] First, the four cylinders 210 push the four clamping plates 220 to move to the predetermined positions respectively;

[0065] Afterwards, the robot moves the PCB 500 to the top of the window 1a and places the PCB 500 downward onto the bottom surfaces 221 of the four clamping plates 220. Subsequently, the four cylinders 210 synchronously push the four clamping plates 220 forward, using the clamping grooves 223 to press the four edges of the PCB 500 tightly, thereby clamping and securing the PCB 500.

[0066] Afterwards, according to the predetermined drilling position, the first screw module 140 and the second screw module 150 are operated in sequence to adjust the coordinate position of the PCB circuit board 500 so that the point where the hole needs to be drilled is moved directly above the drill bit 310 of the drilling machine 300;

[0067] Subsequently, the motor 440 works in the forward direction, and uses the rotation of the screw rod 410 to drive the punch 300 to move upward to feed the tool. At the same time, the drilling machine 300 is started, and the drill bit 310 of the drilling machine 300 rotates, thereby drilling a hole at a predetermined point. After drilling, the motor works in the reverse direction, and uses the rotation of the screw rod 410 to drive the punch 300 to move downward to retract the tool.

[0068] Afterwards, if there are other points that need to be drilled, continue to use the movement of the first screw module 140 and the second screw module 150 to adjust the coordinate position of the PCB circuit board 500, so that the next point that needs to be drilled is moved to directly above the drill bit 310 of the drilling machine 300; then repeat the previous action, and drive the drilling machine 300 to advance and retract through the motor 440 to complete the drilling.

[0069] When adjusting the coordinate position of the PCB circuit board 500 by the movement of the first screw module 140 and the second screw module 150, a control program can be pre-written and stored in the memory of the punching device of the present invention. During operation, the controller of the punching device of the present invention calls the program, and then the drive motors of the first screw module 140 and the second screw module 150 execute the instructions of the program, so that the point to be punched can be moved to the coordinate origin (i.e., directly above the drill bit 310). In addition, the start and stop and forward and reverse rotation of the motor 440 and the start and stop of the drilling machine 300 are all executed by the controller calling the control program and sending it to the motor 440 or the drilling machine 300.

[0070] As can be seen, in the present invention, the robot that places and retrieves the PCB 500 operates above the XY platform 100, placing or removing the PCB 500 from above. The drill 300 operates below the XY platform 100, drilling from bottom to top. Therefore, compared to the existing drilling process, the robot and drill are respectively arranged on the upper and lower sides of the work platform, avoiding the cumbersome operation process caused by both being arranged above the work platform and having to avoid each other when working in turn. This simplifies the drilling process. Specifically, after the robot places the PCB 500 on the XY platform 100, it does not need to make way for the drill 300. Instead, it needs to retreat upward a certain distance, allowing the drill 300 below to drill from bottom to top. After drilling, the drill 300 does not need to make way for the robot, but simply retracts downward. The robot then grabs the PCB 500 from above and transfers it to the next process.

[0071] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A punching device for PCB circuit boards, characterized in that: include: An XY moving platform (100), the XY moving platform (100) comprising, from bottom to top, a base (110), an X-axis moving platform (120), and a Y-axis moving platform (130); the X-axis moving platform (120) can carry the Y-axis moving platform (130) and move above the base (110) along the X-axis direction, and the Y-axis moving platform (130) can move alone above the X-axis moving platform (120) along the Y-axis direction, wherein the X-axis direction and the Y-axis direction are both horizontal directions and are perpendicular to each other in space, and windows (1a) are provided in the middle of the base (110), the X-axis moving platform (120), and the Y-axis moving platform (130); A clamping assembly (200), the clamping assembly (200) being mounted on the upper surface of the Y-axis moving platform (130) and being used for clamping a PCB circuit board to be punched; A drilling machine (300), the drilling machine (300) is arranged below the XY movable platform (100), and the drill bit of the drilling machine (300) is vertically pointed upwards; A drilling machine driving assembly (400) is used to drive the drilling machine (300) to move up and down in a vertical direction.

2. A punching device for PCB circuit boards according to claim 1, characterized in that: An X-axis guide rail (111) is provided above the base (110); An X-axis sliding block (121) is provided below the X-axis movable platform (120), and the X-axis sliding block (121) matches the X-axis guide rail (111) and can slide along the X-axis guide rail. A Y-axis guide rail (122) is also provided above the X-axis movable platform (120), and the Y-axis guide rail (122) and the X-axis guide rail (111) both extend in a horizontal direction and are perpendicular to each other in space. A Y-axis sliding block (131) is provided below the Y-axis moving platform (130), and the Y-axis sliding block (131) matches the Y-axis guide rail (122) and can slide along it.

3. The punching device for PCB circuit board according to claim 2, characterized in that: The X-axis moving platform (120) is further provided with a first driving mechanism for driving the X-axis moving platform (120) to carry the Y-axis moving platform (130) to move above the base (110) along the X-axis direction; The Y-axis moving platform (130) is also equipped with a second driving mechanism for driving the Y-axis moving platform (130) to move independently along the Y-axis direction above the X-axis moving platform (120).

4. The punching device for PCB circuit board according to claim 3, characterized in that: The first driving mechanism is a first screw module (140), the first screw module (140) is fixed on the base (110), and the first slider (141) of the first screw module (140) is fixedly connected to the first fixed plate (123) on the side of the X-axis movable platform (120); The second driving mechanism is a second screw module (150), the second screw module (150) is fixed on the base (110), and the second slider (151) of the second screw module (150) is fixedly connected to the second fixed plate (132) on the side of the Y-axis movable platform (130).

5. The punching device for PCB circuit board according to claim 1, characterized in that: The clamping assembly (200) includes four cylinders (210) and four clamps (220); the four cylinders (210) are respectively fixed in the front, back, left, and right directions of the opening window (1a) in the middle of the Y-axis moving platform (130), and the extension direction of the piston rod of the cylinder (210) points to the opening window (1a); the four clamps (220) are respectively fixed to the ends of the piston rods of the four cylinders (210).

6. The punching device for PCB circuit board according to claim 5, characterized in that: The clamping plate (220) is formed with a bottom table (221) and a top boss (222) on the side facing away from the cylinder (210), wherein the protrusion height of the top boss (222) is smaller than the protrusion height of the bottom table (221), and a clamping groove (223) is formed between the bottom table (221) and the top boss (222).

7. The punching device for PCB circuit board according to claim 1, characterized in that: The drilling machine drive assembly (400) includes a screw rod (410), a sliding block (420), a guide rod (430) and a motor (440); The screw rod (410) is arranged vertically, and a screw rod nut (411) is sleeved on the screw rod (410) and is threadably engaged with the screw rod (410); The sliding block (420) is fixed to the screw nut (411); The guide rod (430) is also arranged vertically, and the sliding block (420) is slidably sleeved on the guide rod (430); The motor (440) is in transmission connection with the screw rod (410) to drive the screw rod (410) to rotate around the axis; The drilling machine (300) is fixed on the sliding block (420).

8. The punching device for PCB circuit board according to claim 7, characterized in that: The drilling machine drive assembly (400) further includes a base (450) and a top plate (460); The guide rod (430) is fixed between the base (450) and the top plate (460); The top of the screw rod (410) passes through the top plate (460) from bottom to top and is connected to the second gear (480); The motor (440) is fixed below the top plate (460), and the output shaft of the motor (440) passes through the top plate (460) from bottom to top and is connected to the first gear (470); wherein the first gear (470) and the second gear (480) are meshed with each other.

9. The punching device for PCB circuit board according to claim 8, characterized in that: There are two guide rods (430), one on the left and one on the right, fixed between the base (450) and the top plate (460) at intervals, and the sliding block (420) is slidably sleeved on the two guide rods (430) at the same time.

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