CN113319927A

CN113319927A - PCB perforating device

Info

Publication number: CN113319927A
Application number: CN202110589054.6A
Authority: CN
Inventors: 韦漫漫
Original assignee: Individual
Current assignee: Jiangmen Dingjie Electronic Technology Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-08-31
Anticipated expiration: 2041-05-28
Also published as: CN113319927B

Abstract

The invention belongs to the technical field of PCB production and processing, and particularly relates to a PCB perforating device which comprises a bottom plate, wherein supporting legs are fixedly connected to the bottom ends of two sides of the bottom plate, supporting columns are fixedly mounted at the upper ends of the two sides of the bottom plate, a threaded rotating rod is transversely and fixedly mounted between the supporting columns, a first motor is fixedly mounted at the right end of the threaded rotating rod in a penetrating mode through the supporting columns, a threaded block is connected to the threaded rotating rod in a threaded mode, an electric push rod is fixedly mounted at the bottom end of the threaded block, a mounting groove is formed in the upper end face of the bottom plate, hydraulic cylinders are fixedly mounted inside the mounting groove, the top ends of the hydraulic cylinders are fixedly mounted on the two sides of the bottom end of a workbench, and a fixing device is fixedly mounted at the upper end of the workbench. The PCB perforating device provided by the invention has the advantages that the structure is simple, the operation is convenient and fast, so that the PCB perforating device can be better taken, the PCB with different sizes can be effectively fixed, and the phenomenon of deviation can not be generated.

Description

PCB perforating device

Technical Field

The invention relates to the technical field of PCB production and processing, in particular to a PCB perforating device.

Background

Pcb (printed circuit board), or printed wiring board for short, is one of the important components in the electronics industry. Almost every kind of electronic equipment, as small as electronic watches, calculators, as large as computers, communication electronics, military weaponry systems, has electronic components such as integrated circuits, and printed boards are used to electrically interconnect the various components. The printed circuit board consists of an insulating bottom plate, a connecting lead and a welding disc for assembling and welding electronic elements, and has double functions of a conductive circuit and the insulating bottom plate. In the production process of the PCB, holes need to be drilled, some holes are drilled for manufacturing via holes so as to plate copper on each layer of circuit, and some holes are drilled for manufacturing positioning holes and the like.

The prior art is when fixing PCB circuit board, and the kind of PCB circuit board is various, and there is certain difference in the size, leads to when fixing PCB circuit board to equidimension not, produces easily not hard up, causes to punch it, and the phenomenon of skew takes place easily for PCB circuit board, and PCB circuit board is difficult to be cleared up at the hole sediment that forms after punching, leads to subsequent production and processing to leave the hidden danger, consequently designs a PCB circuit board perforating device.

Disclosure of Invention

In order to solve the technical problems, the invention provides a PCB perforating device, which is used for solving the problems that the provided PCB is various in types and has certain size difference, so that the PCB is easy to loosen when being fixed and is easy to deviate when being perforated, and hole residues formed after the PCB is perforated are difficult to clean, so that hidden troubles are left in subsequent production and processing.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a PCB circuit board perforating device, including the bottom plate, the both sides bottom fixedly connected with supporting leg of bottom plate, and the both sides upper end fixed mounting of bottom plate has the support column, horizontal fixed mounting has the screw thread bull stick between the support column, the right-hand member of screw thread bull stick runs through in support column fixed mounting has first motor, and threaded connection has the screw thread piece on the screw thread bull stick, the bottom fixed mounting of screw thread piece has electric putter, and the up end of bottom plate has seted up the mounting groove, the inside fixed mounting of mounting groove has hydraulic cylinder, hydraulic cylinder's top fixed mounting is in the bottom both sides of workstation, the upper end fixed mounting of workstation has fixing device.

Preferably, the number of the supporting legs is four, the supporting legs are fixedly connected to the left side and the right side of the bottom end of the bottom plate in a rectangular array mode, and the bottom ends of the supporting legs are fixedly provided with anti-slip pads.

Preferably, the mounting panel is installed to electric putter's bottom fixed mounting, and the bottom fixed mounting of mounting panel has the second motor, and the output fixed mounting of second motor has the drill bit, and the both sides wall fixedly connected with connecting rod of mounting panel.

Preferably, electric putter's both ends upside fixed mounting has the mounting bracket, and the other end fixed mounting of mounting bracket has dust removal mechanism, and dust removal mechanism's upside fixed mounting has the connecting rod, and dust removal mechanism sets up the both sides that are located drill bit.

Preferably, the fixing device comprises a fixing seat, a pulling plate, a spring groove, a sliding block, a first spring, a pulling rod, a through hole, an L-shaped plate, a limiting groove, a limiting rod, a fixing plate, a telescopic rod, a second spring, a rubber plate, a limiting block, a movable block, a groove, a hollow groove, a first permanent magnet and a second permanent magnet, wherein the fixing seat is fixedly connected to two sides of the upper end surface of the workbench, the sliding groove is formed in two sides of the upper end surface of the workbench and is located at the inner side of the fixing seat, the spring groove is formed in the inner side wall of the fixing seat, the through hole is formed in the inner side wall of the spring groove, the pulling rod is arranged in the through hole, one end of the pulling rod is fixedly connected with the pulling plate, the L-shaped plate is fixedly connected to the other end of the pulling rod, the first spring is sleeved on the pulling rod and is fixedly installed between the spring groove and the L-shaped plate, the sliding block is fixedly connected to the bottom end of the L-shaped plate, and the L-shaped plate forms a sliding structure with the sliding groove through the sliding block, a groove is formed in the vertical surface of the inner side of the L-shaped plate, a limiting block is vertically and fixedly installed in the groove, a fixed plate is transversely and fixedly installed at the top of the L-shaped plate and located on the same side of the groove, second springs are fixedly installed on two sides of the bottom end of the fixed plate, a rubber plate is fixedly installed at the bottom end of the second spring, a telescopic rod is fixedly installed in the middle of the bottom end of the fixed plate, the bottom end of the telescopic rod is fixedly installed on the rubber plate, a hollow groove is formed in one side, close to the groove, of the rubber plate, a movable block is arranged in the hollow groove, a first permanent magnet is fixedly installed on the side wall, located in the hollow groove, of the movable block, a second permanent magnet is fixedly installed on the inner side wall of the hollow groove, the other side of the movable block penetrates through the rubber plate and extends to the outside, the movable block is matched with the limiting block, and a limiting rod is fixedly connected to the front end face, located in the hollow groove, of the movable block, and the front end face of the rubber plate is provided with a limit groove which is positioned at the hollow groove, and the limit rod is matched with the limit groove.

Preferably, the first permanent magnet and the second permanent magnet are in the same polarity and are repulsive to each other.

Preferably, the dust removing mechanism comprises a chip removing cylinder, a pressure rod, a sealing sleeve, a third spring, a piston, a dust hood, a dust suction pipe, a dust outlet, a pressure plate and a shaft rod, the piston is arranged in the chip removing cylinder, and the upper end of the piston is fixedly connected with a pressure rod, the other end of the pressure rod penetrates through the chip removing cylinder, a sealing sleeve is fixedly arranged at the contact position of the pressure rod and the chip removing cylinder, a third spring is sleeved on the pressure rod and fixedly arranged between the piston and the chip removing cylinder, a dust suction pipe is fixedly arranged on the inner bottom wall of the chip removing cylinder, and the bottom end of the dust absorption pipe is fixedly provided with a dust absorption cover which is arranged in an inclined way towards the punching drill bit after penetrating through the chip removing cylinder, and a plurality of shaft levers are uniformly and fixedly arranged on the two inner side walls of the dust collection pipe, a pressure plate is movably arranged on the shaft levers, and dust outlets are formed in the two side walls of the dust collection pipe and are positioned on the upper end face of the pressure plate.

The invention provides a PCB perforating device, which has the following beneficial effects:

1. the PCB circuit board perforating device of the invention, through pulling the pulling plate, the pulling plate drives the L-shaped plate to move through the pulling rod, the L-shaped plate moves to the direction of the fixed seat in the sliding groove through the sliding block, so that the first spring contracts to the spring groove, the PCB circuit board to be perforated is placed between the upper surfaces of the L-shaped plate, when the pulling plate is released, the two sides of the PCB circuit board on the L-shaped plate are fixed through the reset function of the first spring, then, an operator moves in the limiting groove through the limiting rod, so that the movable block moves out of the groove and moves to the hollow groove, the rubber plate is moved to the surface of the PCB circuit board by utilizing the elastic function of the second spring, when the limiting rod is released, the movable block is pushed to the limiting block in the groove to limit and fix under the mutual repulsion action of the first permanent magnet and the second permanent magnet, thereby the PCB circuit board can be better taken, so that the PCB circuit boards with different sizes can be effectively fixed without generating the phenomenon of deviation.

2. The PCB punching device of the invention moves the mounting plate downwards through the electric push rod, so that the punching drill bit moves to the surface of the PCB, the pressure rod is driven to move downwards through the connecting rod when the mounting plate moves downwards, the piston is driven to move downwards in the chip removing cylinder through the pressure rod, the pressure plate is closed through the air flow pushed downwards by the piston, then the punching drill bit is driven by the second motor to punch the PCB, the hole slag is left on the surface of the PCB after punching, the mounting plate is driven to move upwards through the electric push rod, the pressure plate is driven to move upwards through the connecting rod when the mounting plate moves upwards, so that the pressure plate is opened through the suction force generated upwards by the piston in the chip removing cylinder, the hole slag left on the surface of the PCB is sucked into the chip removing cylinder through the dust hood, the punching alignment of the PCB is realized, and the problem of inaccurate punching position is avoided, and the punching device is simple and convenient to operate in the punching process, and the pore residues are recycled, so that the production and processing quality is improved.

Drawings

FIG. 1 is a schematic structural diagram of a front view of the present invention.

Fig. 2 is an enlarged schematic structural view of the invention at a in fig. 1.

Fig. 3 is a schematic structural view of the fixing device of the present invention.

Fig. 4 is an enlarged schematic structural view of the invention at B in fig. 3.

FIG. 5 is a schematic structural diagram of the dust removing mechanism of the present invention.

FIG. 6 is a schematic view of the structure of the suction pipe of the present invention.

In fig. 1 to 6, the correspondence between the component names and the reference numbers is: 1-bottom plate, 2-supporting leg, 3-mounting groove, 4-hydraulic cylinder, 5-supporting column, 6-threaded rotating rod, 7-threaded block, 8-electric push rod, 9-mounting frame, 10-first motor, 11-workbench, 12-fixing device, 1201-fixing seat, 1202-pulling plate, 1203-spring groove, 1204-sliding groove, 1205-sliding block, 1206-first spring, 1207-pulling rod, 1208-through hole, 1209-L-shaped plate, 1210-limiting groove, 1211-limiting rod, 1212-fixing plate, 1213-telescopic rod, 1214-second spring, 1215-rubber plate, 1216-limiting block, 1217-movable block, 1218-groove, 1219-hollow groove, 1220-first permanent magnet, 1221-second permanent magnet, 13-mounting plate, 14-second motor, 15-dust removing mechanism, 1501-dust removing cylinder, 1502-pressure rod, 1503-sealing sleeve, 1504-third spring, 1505-piston, 1506-dust hood, 1507-dust suction pipe, 1508-dust outlet, 1509-pressure plate, 1510-shaft rod, 16-punching drill bit and 17-connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1 to 6, the PCB circuit board punching device in the embodiment of the present invention includes a base plate 1, support legs 2 are fixedly connected to bottom ends of two sides of the base plate 1, support pillars 5 are fixedly installed at upper ends of two sides of the base plate 1, threaded rotating rods 6 are transversely and fixedly installed between the support pillars 5, a first motor 10 is fixedly installed at a right end of each threaded rotating rod 6 penetrating through the support pillars 5, a threaded block 7 is connected to each threaded rotating rod 6 in a threaded manner, an electric push rod 8 is fixedly installed at a bottom end of each threaded block 7, an installation groove 3 is formed in an upper end surface of the base plate 1, a hydraulic cylinder 4 is fixedly installed inside each installation groove 3, a top end of each hydraulic cylinder 4 is fixedly installed at two sides of a bottom end of a workbench 11, and a fixing device 12 is fixedly installed at an upper end of the workbench 11.

In this embodiment, the quantity of supporting leg 2 is four, and supporting leg 2 has slipmat with the bottom left and right sides of rectangle array's form fixed connection at bottom plate 1, the bottom fixed mounting of supporting leg 2, makes its this device stability and the security at the in-process of work.

In this embodiment, mounting panel 13 is installed to electric putter 8's bottom fixed mounting, and mounting panel 13's bottom fixed mounting has second motor 14, and the output fixed mounting of second motor 14 has drill bit 16, and mounting panel 13's both sides wall fixedly connected with connecting rod 17 makes it improve the efficiency of punching, labour saving and time saving.

In this embodiment, the mounting bracket 9 is fixedly mounted on the upper sides of the two ends of the electric push rod 8, the dust removing mechanism 15 is fixedly mounted on the other end of the mounting bracket 9, the connecting rod 17 is fixedly mounted on the upper side of the dust removing mechanism 15, and the dust removing mechanism 15 is arranged on the two sides of the drill bit 16, so that the efficiency of recovering the hole slag is improved.

In this embodiment, the fixing device 12 includes a fixing base 1201), a pulling plate 1202, a spring slot 1203, a sliding slot 1204, a sliding block 1205, a first spring 1206, a pulling rod 1207, a through hole 1208, an L-shaped plate 1209, a limiting slot 1210, a limiting rod 1211, a fixing plate 1212, a telescopic rod 1213, a second spring 1214, a rubber plate 1215, a limiting block 1216, a movable block 1217, a groove 1218, a hollow slot 1219, a first permanent magnet 1220 and a second permanent magnet 1221, the fixing base 1201 is fixedly connected to both sides of the upper end surface of the workbench 11, the sliding slot 1204 is arranged on both sides of the upper end surface of the workbench 11 and located inside the fixing base 1201, the spring slot 1203 is arranged on the inside wall of the fixing base 1201, the through hole 1208 is arranged on the inside wall of the spring slot 1203, the pulling rod 1207 is arranged in the through hole 1208, the pulling plate 1202 is fixedly connected to one end of the pulling rod 1207, the L-shaped plate 9 is fixedly connected to the other end of the pulling rod 1207, the pulling rod 1206 is sleeved with the first spring and fixedly installed between the spring slot 1203 and the L1209, a sliding block 1205 is fixedly connected to the bottom end of the L-shaped plate 1209, the L-shaped plate 1209 and the sliding groove 1204 form a sliding structure through the sliding block 1205, a groove 1218 is formed on the vertical surface of the inner side of the L-shaped plate 1209, a limit block 1216 is vertically and fixedly mounted in the groove 1218, a fixing plate 1212 positioned on the same side of the groove 1218 is transversely and fixedly mounted at the top of the L-shaped plate 1209, second springs 1214 are fixedly mounted at two sides of the bottom end of the fixing plate 1212, a rubber plate 1215 is fixedly mounted at the bottom end of the second springs 1214, an expansion link 1213 is fixedly mounted in the middle of the bottom end of the fixing plate 1212, a hollow groove 1219 is formed in one side of the rubber plate 1215 close to the groove 1218, a movable block 1217 is arranged in the hollow groove 1219, a first permanent magnet 1220 is fixedly mounted on the side wall of the movable block 1217 positioned in the hollow groove 1219, a second permanent magnet 1221 is fixedly mounted on the inner side wall of the hollow groove 1219, the other side of the movable block 1217 passes through the rubber plate 1215 and extends to the outside, the movable block 1217 is adapted to the limit block 1216, the front end face of the movable block 1217, which is positioned inside the hollow groove 1219, is fixedly connected with a limit rod 1211, the front end face of the rubber plate 1215 is provided with a limit groove 1210, which is positioned at the hollow groove 1219, and the limit rod 1211 is adapted to the limit groove 1210, so that the movable block 1217 can be better taken, PCB circuit boards with different sizes can be effectively fixed, and the phenomenon of deviation cannot be generated.

In this embodiment, the first permanent magnet 1220 and the second permanent magnet 1221 are like poles repelling each other, so that the fixing effect is improved.

In this embodiment, the dust removing mechanism 15 includes a dust removing cylinder 1501, a pressure rod 1502, a sealing sleeve 1503, a third spring 1504, a piston 1505, a dust suction cover 1506, a dust suction pipe 1507, a dust outlet 1508, a pressure plate 1509 and a shaft 1510, the piston 1505 is arranged inside the dust removing cylinder 1501, the pressure rod 1502 is fixedly connected to the upper end of the piston 1505, the other end of the pressure rod 1502 penetrates through the dust removing cylinder 1501, the sealing sleeve 1503 is fixedly mounted at the contact position of the pressure rod 1502 and the dust removing cylinder 1501, the third spring 1504 is sleeved on the pressure rod 1502 and fixedly mounted between the piston 1505 and the dust removing cylinder 1501, the dust suction pipe 1507 is fixedly mounted on the inner bottom wall of the dust removing cylinder 1501, the dust suction cover 1506 is fixedly mounted at the bottom end of the dust suction pipe 1507 penetrating through the dust removing cylinder 1501, the dust suction cover 1506 is obliquely arranged towards the drill bit 16, a plurality of pressure plates 1510 are uniformly and fixedly mounted on the inner side walls of the dust suction pipe 1507, the pressure plates 1510 are movably mounted on the pressure plates 1510, dust outlet 1508 is seted up to the both sides wall of dust absorption pipe 1507 and is located the up end department of pressure plate 1509, makes its in-process easy operation that punches convenient to carry out recovery processing to the pore sediment, improved the quality of production and processing.

The working principle is as follows: when the invention is used, the power is switched on, an operator pulls the pulling plate 1202, the pulling plate 1202 drives the L-shaped plate 1209 to move through the pulling rod 1207, the L-shaped plate 1209 moves towards the fixed seat 1201 in the sliding groove 1204 through the sliding block 1205, the first spring 1206 contracts towards the spring groove 1203, a PCB circuit board needing punching is placed between the upper surfaces of the L-shaped plate 1209, the operator releases the pulling plate 1202, fixes the two sides of the PCB circuit board on the L-shaped plate 1209 through the resetting function of the first spring 1206, then the operator moves in the limiting groove 1210 through the limiting rod 1211, the movable block 1217 moves out of the groove 1218 and moves into the hollow groove 1219, the rubber plate 1215 moves to the surface of the PCB circuit board through the elastic function of the second spring 1214, and under the mutual repulsion action of the first permanent magnet 1220 and the second permanent magnet 1221 when the limiting rod 1211 is released, the movable block 1217 is pushed to the limit block 1216 in the groove 1218 for limiting and fixing, the hydraulic cylinder 4 moves the worktable 11 to the lower part of the punching drill 16, the mounting plate 13 moves downwards through the electric push rod 8, the punching drill 16 moves to the surface of the PCB circuit board, when the mounting plate 13 moves downwards, the connecting rod 17 drives the pressure rod 1502 to move downwards, the pressure rod 1502 drives the piston 1505 to move downwards in the chip removing cylinder 1501, the pressure plate 1509 is closed through the air flow pushed downwards by the piston 1505, then the punching drill 16 is driven by the second motor 14 to punch the PCB circuit board, the PCB circuit board leaves hole residue on the surface after punching, when the electric push rod 8 drives the mounting plate 13 to move upwards, the mounting plate 13 moves upwards through the connecting rod 17 to drive the pressure rod 1502 to move upwards, so that the pressure plate 1505 1509 is opened through the suction force generated upwards by the piston in the chip removing cylinder 1501, then, the hole slag left on the surface of the PCB is sucked into the chip removing cylinder 1501 through the dust hood 1506, so that the pressure plate 1509 is closed in the ascending process of the mounting plate 13 to quickly adsorb the hole slag on the workbench 11, and the pressure plate 1509 is automatically closed in the automatic and quick workbench in the descending process of the mounting plate 13; the first motor 10 drives the thread block 7 to move left and right on the thread rotating rod 6, so that the surface of the PCB circuit board is aligned and punched.

The above is the embodiment of the present invention. The embodiments and specific parameters in the embodiments are only for the purpose of clearly illustrating the verification process of the invention and are not intended to limit the scope of the invention, which is defined by the claims, and all equivalent structural changes made by using the contents of the specification and the drawings of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a PCB circuit board perforating device, including bottom plate (1), its characterized in that: the utility model discloses a hydraulic support structure, including bottom plate (1), both sides bottom fixedly connected with supporting leg (2), and the both sides upper end fixed mounting of bottom plate (1) has support column (5), horizontal fixed mounting has screw thread bull stick (6) between support column (5), the right-hand member of screw thread bull stick (6) runs through in support column (5) fixed mounting has first motor (10), and threaded connection has screw thread piece (7) on screw thread bull stick (6), the bottom fixed mounting of screw thread piece (7) has electric putter (8), and the up end of bottom plate (1) has seted up mounting groove (3), the inside fixed mounting of mounting groove (3) has hydraulic cylinder (4), the top fixed mounting of hydraulic cylinder (4) is in the bottom both sides of workstation (11), the upper end fixed mounting of workstation (11) has fixing device (12).

2. The PCB perforating device of claim 1, wherein: the number of the supporting legs (2) is four, the supporting legs (2) are fixedly connected to the left side and the right side of the bottom end of the bottom plate (1) in a rectangular array mode, and the bottom ends of the supporting legs (2) are fixedly provided with anti-slip pads.

3. The PCB perforating device of claim 1, wherein: mounting panel (13) are installed to the bottom fixed mounting of electric putter (8), and the bottom fixed mounting of mounting panel (13) has second motor (14), and the output fixed mounting of second motor (14) has drill bit (16), and the both sides wall fixedly connected with connecting rod (17) of mounting panel (13).

4. The PCB perforating device of claim 1, wherein: the utility model discloses a drilling machine, including electric putter (8), both ends upside fixed mounting have mounting bracket (9), and the other end fixed mounting of mounting bracket (9) has dust removal mechanism (15), and the upside fixed mounting of dust removal mechanism (15) has connecting rod (17), and dust removal mechanism (15) set up the both sides that are located drill bit (16).

5. The PCB perforating device of claim 1, wherein: the fixing device (12) comprises a fixing seat (1201), a pull plate (1202), a spring groove (1203), a sliding groove (1204), a sliding block (1205), a first spring (1206), a pull rod (1207), a through hole (1208), an L-shaped plate (1209), a limiting groove (1210), a limiting rod (1211), a fixing plate (1212), a telescopic rod (1213), a second spring (1214), a rubber plate (1215), a limiting block (1216), a movable block (1217), a groove (1218), a hollow groove (1219), a first permanent magnet (1220) and a second permanent magnet (1221), wherein the fixing seat (1201) is fixedly connected with two sides of the upper end face of the workbench (11), the sliding groove (1204) is formed in two sides of the upper end face of the workbench (11), the spring groove (1203) is formed in the inner side of the fixing seat (1201), and the through hole (1208) is formed in the inner side wall of the spring groove (1203), a pull rod (1207) is arranged in the through hole (1208), one end of the pull rod (1207) is fixedly connected with a pull plate (1202), the other end of the pull rod (1207) is fixedly connected with an L-shaped plate (1209), the pull rod (1207) is sleeved with a first spring (1206) and fixedly arranged between a spring groove (1203) and the L-shaped plate (1209), the bottom end of the L-shaped plate (1209) is fixedly connected with a sliding block (1205), the L-shaped plate (1209) and the sliding groove (1204) form a sliding structure through the sliding block (1205), a groove (1218) is formed in the vertical surface of the inner side of the L-shaped plate (1209), a limit block (1216) is vertically and fixedly arranged in the groove (1218), a fixing plate (1212) is transversely and fixedly arranged at the top of the L-shaped plate (1209) and is positioned at the same side of the groove (1218), second springs (1214) are fixedly arranged at two sides of the bottom end of the fixing plate (1212), and a rubber plate (1215) is fixedly arranged at the bottom end of the second spring (1214), and the middle part of the bottom end of the fixed plate (1212) is fixedly provided with a telescopic rod (1213), the bottom end of the telescopic rod (1213) is fixedly arranged on a rubber plate (1215), one side of the rubber plate (1215), which is close to the groove (1218), is provided with a hollow groove (1219), the inside of the hollow groove (1219) is provided with a movable block (1217), the side wall of the movable block (1217), which is positioned inside the hollow groove (1219), is fixedly provided with a first permanent magnet (1220), the inner side wall of the hollow groove (1219) is fixedly provided with a second permanent magnet (1221), the other side of the movable block (1217), which passes through the rubber plate (1215), extends to the outside, the movable block (1217) is matched with a limit block (1216), the front end face of the movable block (1217), which is positioned inside the hollow groove (1219), is fixedly connected with a limit rod (1211), and the front end face of the rubber plate (1215) is provided with a limit groove (1210), which is positioned at the hollow groove (1219), and the limit rod (1211) is matched with the limit groove (1210).

6. The PCB circuit board perforating device of claim 5, wherein: the first permanent magnet (1220) and the second permanent magnet (1221) are like poles repelling each other.

7. The PCB circuit board perforating device of claim 4, wherein: the dust removal mechanism (15) comprises a chip removal cylinder (1501), a pressure rod (1502), a sealing sleeve (1503), a third spring (1504), a piston (1505), a dust suction cover (1506), a dust suction pipe (1507), a dust outlet (1508), a pressure plate (1509) and a shaft rod (1510), wherein the piston (1505) is arranged in the chip removal cylinder (1501), the pressure rod (1502) is fixedly connected to the upper end of the piston (1505), the other end of the pressure rod (1502) penetrates through the chip removal cylinder (1501), the sealing sleeve (1503) is fixedly installed at the contact position of the pressure rod (1502) and the chip removal cylinder (1501), the third spring (1504) is sleeved on the pressure rod (1502) and fixedly installed between the piston (1505) and the chip removal cylinder (1501), the dust suction pipe (1507) is fixedly installed on the inner bottom wall of the chip removal cylinder (1501), and the dust suction cover (1506) is fixedly installed at the bottom end of the dust suction pipe (1507) penetrating through the chip removal cylinder (1501), and dust absorption cover (1506) sets up to drill bit (16) department slope, and the even fixed mounting of the interior both sides wall of dust absorption pipe (1507) has a plurality of axostylus axostyles (1510), and movable mounting has pressure plate (1509) on axostylus axostyle (1510), and the both sides wall of dust absorption pipe (1507) has seted up dust outlet (1508) and is located the up end department of pressure plate (1509).