CN112122651A

CN112122651A - Punching forming equipment and punching forming process for high-precision PCB

Info

Publication number: CN112122651A
Application number: CN202010990842.1A
Authority: CN
Inventors: 曾庆恒; 曾庆朋; 温永亮
Original assignee: Guangzhou Huachuang Precision Technology Co ltd
Current assignee: Guangzhou Huachuang Precision Technology Co ltd
Priority date: 2020-09-19
Filing date: 2020-09-19
Publication date: 2020-12-25

Abstract

The application relates to the technical field of PCB circuit board processing, in particular to punching forming equipment and a punching forming process for a high-precision PCB circuit board, and the punching forming equipment comprises a workbench, wherein a placing rack and a punching machine are arranged on the upper surface of the workbench, the PCB circuit board is placed on the placing rack, the punching machine comprises a machine head and a machine body, a driving motor is installed in the machine head, an output shaft of the driving motor is fixedly connected with a drill bit, the drill bit penetrates out of the machine head and is positioned above the PCB circuit board, the drill bit is arranged in a hollow mode, a plurality of air inlet holes are formed in the outer wall of the end portion, close to the driving motor, of the drill bit, an air cavity is formed in the machine head and is communicated with the air cavity, a plurality of air; the punching forming equipment and the punching forming process of the high-precision PCB can conveniently remove hole slag in holes of the PCB.

Description

Punching forming equipment and punching forming process for high-precision PCB

Technical Field

The application relates to the field of PCB (printed circuit board) processing, in particular to punching and forming equipment and a punching and forming process for a high-precision PCB.

Background

Pcb (printed circuit board), i.e. printed wiring board, printed circuit board for short, is one of the important parts 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.

However, in the related art, after the PCB is mechanically punched, a part of copper wires and PP dust are accumulated in the holes to form hole slag, wherein the hole slag mainly comprises various dusts such as copper foil, copper wires, glass fibers and PP powder, and hidden troubles such as uneven copper plating thickness in the holes and no metal plating in the holes are left for the subsequent electroplating production; thereby indirectly reducing the processing quality of the PCB circuit board, and thus, improvement is required.

Disclosure of Invention

In order to conveniently remove hole slag in holes of the PCB, the application provides the punching and forming equipment of the high-precision PCB and the punching and forming process thereof.

In a first aspect, the application provides a high accuracy PCB circuit board's former that punches adopts following technical scheme:

the utility model provides a former that punches of high accuracy PCB circuit board, includes the workstation, the upper surface of workstation is provided with rack and puncher, the PCB circuit board has been placed on the rack, the puncher includes aircraft nose and fuselage, install driving motor in the aircraft nose, driving motor's output shaft fixedly connected with drill bit, the aircraft nose is worn out and is located PCB circuit board top to the drill bit, the drill bit is the cavity setting, the tip outer wall that the drill bit is close to driving motor is provided with a plurality of inlet ports, be provided with the air cavity in the aircraft nose, inlet port and air cavity intercommunication, the tip that the aircraft nose was worn out to the drill bit is provided with a plurality of ventholes, be provided with the fan on the workstation, the fan is provided with the air outlet, air outlet and air cavity intercommunication, be provided.

Through adopting above-mentioned technical scheme, place the PCB circuit board on the rack, start the puncher, the aircraft nose pushes down, driving motor's output shaft rotates, punch to the PCB circuit board with the drive drill bit, and simultaneously, start the fan, the air outlet of fan is bloied to the air cavity, the air current enters into the inside of drill bit from the inlet port, and from the venthole blowout, so that the drill bit is when punching, the hole sediment in the air current with the hole blows off to the hole outside, realize the collection through collection device at last, thereby can get rid of most hole sediment in the hole, with the hole sediment in the reduction hole to the following electroplating production processing leave downthehole copper-plating thickness uneven with downthehole electroplating hidden danger such as no metal, thereby indirect processingquality who has improved the PCB circuit board.

Preferably, the collection device includes the spring of a plurality of vertical settings, spring fixed connection is in the surface of aircraft nose, the tip fixedly connected with go-between of spring, the go-between is located the below of drill bit, fixedly connected with cloth cover between the upper surface of go-between and the surface of aircraft nose, the fan is including the collecting vessel and the electric fan that are cavity setting, electric fan installs in the collecting vessel, the collecting vessel has the suction opening, suction opening and cloth cover intercommunication, be provided with in the collecting vessel and filter the piece.

Through adopting above-mentioned technical scheme, the drill bit is when punching, the aircraft nose pushes down, in order to drive the downward motion of spring, when the terminal surface of go-between offsets with the upper surface of PCB circuit board, form airtight space between sack and the PCB circuit board, the aircraft nose continues to push down, the spring shrink, the hole sediment that the drill bit produced when punching is blown out to the sack in, electric fan rotates and produces suction in order to the hole sediment in the cloth cover, the hole sediment is inhaled to the collecting vessel in through the suction opening, and simultaneously, filter the hole sediment in with the air current and filter out, and then accomplish the collection to the hole sediment.

Preferably, the lower fixed surface of aircraft nose is connected with the water smoke shower nozzle, the water smoke shower nozzle is towards the tip of drill bit, the water smoke shower nozzle is located the inside of cloth cover, the one end of water smoke shower nozzle is provided with the water pipe, the water pipe is worn out the cloth cover and is connected with water supply equipment, the lower surface of go-between is provided with pressure sensor, pressure sensor is connected with water supply equipment's switch electricity.

Through adopting above-mentioned technical scheme, the aircraft nose pushes down, when pressure sensor offsets with the upper surface of PCB circuit board, the spring is by the shrink, and simultaneously, pressure sensor is when the effort that receives the spring, pressure sensor wants sprinkler transmission signal, start with control sprinkler, and then spray water smoke to the hole through the water smoke shower nozzle, so that the hole sediment that lifts up gathers together as far as, and then make things convenient for the hole sediment to be inhaled to the collecting vessel in through the suction opening, and simultaneously, water smoke has also played the lubrication action, in order to indirectly improve the efficiency that the drill bit polished the hole.

Preferably, filter and set up to the filter cloth, the filter cloth sets up in the collecting vessel, the filter cloth is located the electric fan below, the air outlet is located the top of collecting vessel, the suction opening is located the lateral wall of collecting vessel and is located and strains the cloth below.

Through adopting above-mentioned technical scheme, electric fan rotates the back, behind the pore sediment suction to the collecting vessel in the air current that produces in with the sack, the filter cloth is completely cut off in one side of electric fan with the pore sediment, the pore sediment is because the adsorption of air current hugs closely the surface that fits the filter cloth, and simultaneously, the air current that the electric fan opposite side produced enters into the air cavity, consequently, only need just can realize the circulation of air current through the effect of this single power supply of electric fan and filter screen, so that equipment structure simplifies and can play resources are saved's effect to a certain extent.

Preferably, the lateral wall of the collecting barrel is movably inserted with a material receiving box, the material receiving box is located below the suction opening and comprises a box body and a cover body, the box body is fixedly connected with the cover body, the lateral wall of the collecting barrel is provided with an insertion port, the box body is in insertion fit with the insertion port, a groove is circumferentially arranged on the outer side of the insertion port, the cover body is in insertion fit with the groove, a sealing gasket is arranged on the groove wall of the groove, and the sealing gasket is in butt fit with the cover body.

Through adopting above-mentioned technical scheme, punch the back that finishes, close electric fan, the hole sediment drops in connecing the material box under the effect of gravity, after using a dead time, takes the lid out from the recess to in the hole sediment to the box body clears up, simultaneously, sealed pad and lid butt cooperation, and then improved the connection leakproofness of lid and recess, take place with the condition that reduces the air current and flow from the gap between lid and the recess.

Preferably, the collecting vessel includes bucket and lower bucket, go up bucket and articulated cooperation of lower bucket, electric fan installs in last bucket, it is provided with the collar to slide in the lower bucket, the filter cloth is installed in the inner wall of collar, two lateral wall fixedly connected with grafting blocks of collar, two slots have been seted up along vertical direction to the inner wall of lower bucket, the slot runs through the terminal surface of lower bucket, two the grafting block is pegged graft the cooperation with two slots respectively, a grafting block terminal surface and the terminal surface butt cooperation of last bucket.

Through adopting above-mentioned technical scheme, the filter screen uses between one section back, when equipment is idle, opens the bucket, takes the collar out in the bucket down to wash the filter screen on the collar, wash the back that finishes, insert two grafting pieces respectively to two slots in, cover the bucket, go up the terminal surface butt cooperation of bucket and lower bucket and grafting piece, and then realize fixing the collar.

Preferably, the end face of the upper barrel is fixedly connected with a sealing ring, the end face of the lower barrel is provided with a containing groove, and the sealing ring is in inserting fit with the containing groove.

Through adopting above-mentioned technical scheme, the cooperation is pegged graft with the storage tank to the sealing washer, and then has improved the connection leakproofness between last bucket and the lower bucket to the condition that the reduction air current flows out from the gap between last bucket and the lower bucket takes place.

Preferably, the placing rack comprises a plurality of support legs and a placing plate, the support legs are fixedly connected to the lower surface of the placing plate, a placing groove is formed in the surface of the placing plate, the placing groove penetrates through the upper surface and the lower surface of the placing plate, a guide pipe is fixedly connected to the lower surface of the placing plate, an opening at one end of the guide pipe is arranged around a notch of the placing groove, the other end of the guide pipe is communicated with the side wall of the collecting barrel, the connecting position of the guide pipe and the collecting barrel is located between the box body and the filter cloth, and a control valve is arranged on the guide pipe.

Through adopting above-mentioned technical scheme, during initial state, control flap closes to isolated pipe and collecting vessel, during punching, partial hole sediment in the hole falls into to the pipe in from the standing groove, and the completion back of punching opens the valve, and the hole sediment flows into to the collecting vessel in from the pipe, thereby to the collection of this partial hole sediment.

Preferably, the upper surface of placing the board is provided with the protection casing, the top of protection casing is the opening setting, the protection casing encloses and closes the setting of PCB circuit board.

Through adopting above-mentioned technical scheme, the protection casing encloses and closes the setting of PCB circuit board to reduce partial hole sediment and water smoke departure rack, and then the condition emergence of pollution work platform.

In a second aspect, the application provides a punching and forming process for a high-precision PCB, which includes the following steps:

s1: placing the PCB on a placing plate;

s2: opening the perforating machine, and simultaneously opening the fan and the water supply equipment;

s3: and after the opening is finished, closing the perforating machine, the fan and the water supply equipment, and taking out the PCB.

Through adopting above-mentioned scheme, open the puncher, and open fan and water supply equipment simultaneously, the in-process of punching is carried out, the air current that the fan produced is discharged through the venthole, blow off the hole sediment in the hole, simultaneously, water supply equipment is to the position water spray that punches, so that the hole sediment can be gathered together and be handled, the fan can inhale into its inside with the hole sediment that blows off simultaneously, and then accomplish the collection of hole sediment, with the hole sediment in the reduction hole leaves downthehole copper facing thickness inequality and hidden danger such as downthehole electroplating no metal to the electroplating production processing at the back, thereby indirect PCB circuit board's processingquality has been improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the hidden troubles of uneven copper plating thickness in the hole, no metal in the hole during electroplating and the like caused by hole slag in the hole in the subsequent electroplating production and processing can be reduced, so that the processing quality of the PCB is indirectly improved;

2. by spraying water mist towards the punching position, the water mist has a lubricating effect, so that the hole polishing efficiency of the drill bit is indirectly improved;

3. the circulation of the airflow can be realized only by the action of the single power source of the electric fan and the filter screen, so that the structure of the equipment is simplified, and the function of saving resources can be achieved to a certain extent.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a partial cross-sectional view of an embodiment of the present application.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic structural view of the embodiment of the present application with the cloth cover removed.

Fig. 5 is an enlarged view of portion B of fig. 4.

Fig. 6 is an assembly schematic of an embodiment of the present application.

Description of reference numerals: 1. a work table; 2. placing a rack; 21. a support leg; 22. placing the plate; 3. a perforating machine; 31. a machine head; 311. an air cavity; 312. erecting a rod; 3121. a clamping jaw; 32. a body; 5. a drive motor; 6. a drill bit; 61. an air inlet; 62. an air outlet; 7. a fan; 71. an electric fan; 72. a collection barrel; 721. putting the barrel on; 7211. a seal ring; 722. discharging the barrel; 7221. an interface; 7222. a groove; 72221. a gasket; 7223. inserting grooves; 7224. a containing groove; 8. a collection device; 81. a spring; 82. a connecting ring; 83. cloth sheathing; 9. a mounting ring; 91. filtering cloth; 92. an insertion block; 10. a material receiving box; 101. a box body; 102. a cover body; 11. a water mist spray head; 111. a water pipe; 12. a water supply device; 13. a pressure sensor; 14. a conduit; 141. a control valve; 15. a shield.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses former that punches of high accuracy PCB circuit board. Referring to fig. 1 and 2, the punching and forming device for the high-precision PCB comprises a workbench 1, wherein a placing frame 2 and a punching machine 3 are arranged on the upper surface of the workbench 1, the PCB is horizontally arranged on the placing frame 2, and the punching machine 3 is positioned on one side of the placing frame 2.

Referring to fig. 2 and 3, specifically, punch 3 includes head 31 and fuselage 32, and head 31 is the cavity setting, and head 31 installs on fuselage 32, installs driving motor 5 in head 31, and driving motor 5's output shaft fixedly connected with drill bit 6, and drill bit 6 is the cavity setting, and the lower surface of head 31 is worn out and is located the PCB circuit board top to the one end of drill bit 6, and simultaneously, the outer wall circumference that drill bit 6 wore out the tip of head 31 is provided with a plurality of ventholes 62. Be provided with air cavity 311 in the aircraft nose 31, in this embodiment, air cavity 311 is enclosed by a lateral wall of driving motor 5 and the lateral wall of aircraft nose 31 and closes and form, and driving motor 5's output shaft and the one end of drill bit 6 all set up in air cavity 311, and the tip outer wall that drill bit 6 is close to driving motor 5 is provided with a plurality of inlet ports 61, inlet port 61 and air cavity 311 intercommunication. In addition, a fan 7 is mounted on the upper surface of the working table 1, the fan 7 is provided with an air outlet (not shown in the figure), the air outlet is communicated with the air cavity 311, and the machine head 31 is provided with a collecting device 8.

Referring to fig. 4 and 5, in particular, the collecting device 8 includes a plurality of vertically arranged springs 81, the springs 81 are fixedly connected to the lower surface of the handpiece 31, in this embodiment, the number of the springs 81 is two, the two springs 81 are respectively located at two sides of the handpiece 31, a connecting ring 82 is fixedly connected to the end of each spring 81, when the springs 81 are in a natural state, the connecting ring 82 is located below the drill 6, and a cloth cover 83 (see fig. 1) is fixedly connected between the upper surface of the connecting ring 82 and the surface of the handpiece 31.

Further, the blower 7 includes a hollow collecting barrel 72 and an electric fan 71 (see fig. 6), the electric fan 71 is installed in the collecting barrel 72, the collecting barrel 72 has an air suction opening (not shown), the air suction opening is communicated with the cloth cover 83, and a filter member is installed in the collecting barrel 72.

Referring to fig. 6, specifically, the filter member is a filter cloth 91, the filter cloth 91 is disposed in the collecting tub 72, the filter cloth 91 is located below the electric fan 71, the air outlet is located at the top of the collecting tub 72 and above the electric fan 71, and the air suction opening is located on the side wall of the collecting tub 72 and below the filter cloth 91.

In addition, a material receiving box 10 is movably inserted into the side wall of the collecting barrel 72, the material receiving box 10 is located below the air suction opening, the material receiving box 10 comprises a box body 101 and a cover body 102, the box body 101 is fixedly connected with the cover body 102, an insertion opening 7221 is formed in the side wall of the collecting barrel 72, and the box body 101 is in insertion fit with the insertion opening 7221. Meanwhile, a groove 7222 is circumferentially arranged on the outer side of the insertion port 7221, the cover body 102 is in insertion fit with the groove 7222, a sealing gasket 72221 is arranged on the groove wall of the groove 7222, and the sealing gasket 72221 is in butt fit with the cover body 102, so that the connection sealing performance of the cover body 102 and the groove 7222 is improved, and the situation that air flows out from a gap between the cover body 102 and the groove 7222 is reduced.

Further, including upper barrel 721 and lower barrel 722, upper barrel 721 and lower barrel 722 all are the opening setting, and upper barrel 721 and lower barrel 722 hinge fit, the loose end of upper barrel 721 can carry out fixed connection through hasp and lower barrel 722, also can carry out fixed connection through buckle and lower barrel 722, in this embodiment, the loose end of upper barrel 721 carries out fixed connection through the hasp with lower barrel 722. The electric fan 71 is fixed to an inner wall of the upper tub 721, and the socket 7221 is disposed on an outer wall of the lower tub 722. In addition, a mounting ring 9 is slidably disposed in the lower barrel 722, and the filter cloth 91 is fixedly connected to the inner wall of the mounting ring 9.

Specifically, two side walls of the mounting ring 9 are fixedly connected with the insertion blocks 92, and meanwhile, two insertion slots are formed in the inner wall of the lower barrel 722 in the vertical direction, the insertion slots penetrate through the end portion of the lower barrel 722, the two insertion blocks 92 are respectively in insertion fit with the two insertion slots, and when the upper barrel 721 is covered on the lower barrel 722, one end face of each insertion block 92 is in butt fit with the end face of the upper barrel 721.

In addition, the end surface of the upper barrel 721 is fixedly connected with a sealing ring 7211, the end surface of the lower barrel 722 is provided with a containing groove 7224, the sealing ring 7211 is in plug-in fit with the containing groove 7224 so as to improve the connection sealing performance of the upper barrel 721 and the lower barrel 722, and in this embodiment, the sealing ring 7211 may be made of an elastic material, such as rubber.

Referring back to fig. 4 and 5, the lower surface of the nose 31 is fixedly connected with a vertical rod 312, the end of the vertical rod 312 is fixedly connected with a clamping jaw 3121, the clamping jaw 3121 is fixedly connected with a water mist nozzle 11, the water mist nozzle 11 faces the end of the drill bit 6, the water mist nozzle 11 is located inside the cloth cover 83, one end of the water mist nozzle 11 is provided with a water pipe 111, and the water pipe 111 penetrates through the cloth cover 83 and is connected with a water supply device 12. Meanwhile, the lower surface of the connection ring 82 is provided with the pressure sensor 13, the pressure sensor 13 is arranged in a ring shape, and the pressure sensor 13 is electrically connected with a switch of the water supply device 12.

Specifically, the placing rack 2 includes a plurality of support legs 21 and a placing plate 22 horizontally disposed, in this embodiment, the number of the support legs 21 is set to four, and four support legs 21 are fixedly connected to the lower surface of the placing plate 22 and arranged in a matrix. In addition, a placing groove (not shown) is formed on the surface of the placing plate 22, the placing groove penetrates through the upper and lower surfaces of the placing plate 22, the guide tube 14 is fixedly connected to the lower surface of the placing plate 22, an opening at one end of the guide tube 14 is arranged around a notch of the placing groove, the other end of the guide tube 14 is communicated with the side wall of the lower barrel 722, and the joint of the guide tube 14 and the lower barrel 722 is positioned between the box body 101 and the filter cloth 91. In addition, a control valve 141 is disposed on the conduit 14, and the control valve 141 controls the opening and closing of the connection end of the conduit 14 and the lower barrel 722, which is the prior art and will not be described herein in detail.

Further, the upper surface of placing board 22 is provided with protection casing 15, the top of protection casing 15 is the opening setting, protection casing 15 encloses to close the setting of PCB circuit board, and protection casing 15 encloses to close the setting of PCB circuit board to reduce the condition emergence of partial hole sediment and water smoke departure rack 2, and then pollution workstation 1.

The embodiment of the application also discloses a punching and forming process of the high-precision PCB:

s1: placing the PCB on the placing plate 22;

s2: opening the perforating machine 3, and simultaneously opening the fan 7 and the water supply equipment 12;

s3: after the opening is finished, the perforating machine 3, the fan 7 and the water supply device 12 are closed, and the PCB is taken out.

The embodiment of the application discloses punching forming equipment of high accuracy PCB circuit board and implementation principle of punching forming technology thereof does: placing the PCB on the placing frame 2, starting the perforating machine 3, pressing down the machine head 31, driving the output shaft of the motor 5 to rotate to drive the drill bit 6 to perforate the PCB, simultaneously starting the fan 7, blowing air to the air cavity 311 by the air outlet of the fan 7, leading the air flow to enter the interior of the drill bit 6 from the air inlet 61 and be sprayed out from the air outlet 62, leading the air flow to blow out the hole slag in the hole to the outer side of the hole when the drill bit 6 perforates, driving the spring 81 to move downwards when the machine head 31 is pressed down, forming a closed space between the cloth bag and the PCB when the end surface of the connecting ring 82 is abutted against the upper surface of the PCB, continuously pressing down the machine head 31, contracting the spring 81, blowing out the hole slag generated when perforating the drill bit 6 perforates into the cloth bag, rotating the electric fan 71 to generate suction force on the hole slag in the cloth cover 83, and sucking the hole slag into the collecting barrel 72, therefore, most of hole slag in the holes can be removed, hidden troubles of uneven copper plating thickness in the holes and no metal in the holes during electroplating in the following electroplating production and processing are reduced by the hole slag in the holes, and the processing quality of the PCB is indirectly improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a former that punches of high accuracy PCB circuit board which characterized in that: comprises a workbench (1), wherein a placing rack (2) and a punching machine (3) are arranged on the upper surface of the workbench (1), a PCB circuit board is placed on the placing rack (2), the punching machine (3) comprises a machine head (31) and a machine body (32), a driving motor (5) is installed in the machine head (31), an output shaft of the driving motor (5) is fixedly connected with a drill bit (6), the drill bit (6) penetrates out of the machine head (31) and is positioned above the PCB circuit board, the drill bit (6) is arranged in a hollow manner, a plurality of air inlet holes (61) are formed in the outer wall of the end part of the drill bit (6) close to the driving motor (5), an air cavity (311) is formed in the machine head (31), the air inlet holes (61) are communicated with the air cavity (311), a plurality of air outlet holes (62) are formed in the end part of the drill bit (6) penetrating out of, the fan (7) is provided with an air outlet which is communicated with the air cavity (311), and the machine head (31) is provided with a collecting device (8).

2. The punching and forming device for the high-precision PCB circuit board as claimed in claim 1, wherein: collection device (8) include spring (81) of a plurality of vertical settings, spring (81) fixed connection is in the surface of aircraft nose (31), the tip fixedly connected with go-between (82) of spring (81), go-between (82) are located the below of drill bit (6), fixedly connected with cloth cover (83) between the upper surface of go-between (82) and the surface of aircraft nose (31), fan (7) are including collection bucket (72) and electric fan (71) that are the cavity setting, install in collection bucket (72) electric fan (71), collection bucket (72) have the suction opening, suction opening and cloth cover (83) intercommunication, be provided with filtering piece in collection bucket (72).

3. The punching and forming device for the high-precision PCB circuit board as claimed in claim 2, wherein: the lower fixed surface of aircraft nose (31) is connected with water smoke shower nozzle (11), water smoke shower nozzle (11) are towards the tip of drill bit (6), water smoke shower nozzle (11) are located the inside of cloth cover (83), the one end of water smoke shower nozzle (11) is provided with water pipe (111), cloth cover (83) are worn out and water supply equipment (12) are connected with in water pipe (111), the lower surface of go-between (82) is provided with pressure sensor (13), pressure sensor (13) are connected with the switch electricity of water supply equipment (12).

4. The punching and forming device for the high-precision PCB circuit board as claimed in claim 2, wherein: the filter member is arranged as a filter cloth (91), the filter cloth (91) is arranged in the collecting barrel (72), the filter cloth (91) is arranged below the electric fan (71), the air outlet is arranged at the top of the collecting barrel (72), and the air suction opening is arranged on the side wall of the collecting barrel (72) and is arranged below the filter cloth (91).

5. The punching and forming device for the high-precision PCB circuit board as claimed in claim 4, wherein: the lateral wall activity of collecting vessel (72) is pegged graft and is had material receiving box (10), material receiving box (10) are located the below in suction opening, material receiving box (10) are including box body (101) and lid (102), box body (101) and lid (102) fixed connection, the lateral wall of collecting vessel (72) is provided with interface (7221), box body (101) and interface (7221) cooperation of pegging graft, the outside circumference of interface (7221) is provided with recess (7222), lid (102) and recess (7222) cooperation of pegging graft, the cell wall of recess (7222) is provided with sealed pad (72221), sealed pad (72221) and lid (102) butt cooperation.

6. The punching and forming device for the high-precision PCB circuit board as claimed in claim 4, wherein: the collecting barrel (72) comprises an upper barrel (721) and a lower barrel (722), the upper barrel (721) is hinged to the lower barrel (722), the electric fan (71) is installed in the upper barrel (721), the lower barrel (722) is provided with a mounting ring (9) in a sliding mode, the filter cloth (91) is installed on the inner wall of the mounting ring (9), two insertion blocks (92) are fixedly connected to two side walls of the mounting ring (9), two insertion slots are formed in the inner wall of the lower barrel (722) in the vertical direction and penetrate through the end face of the lower barrel (722), the two insertion blocks (92) are respectively in insertion fit with the two insertion slots, and one end face of each insertion block (92) is in abutting fit with the end face of the upper barrel (721).

7. The punching and forming device for the high-precision PCB circuit board as claimed in claim 6, wherein: the terminal surface fixedly connected with sealing washer (7211) of upper barrel (721), the terminal surface of lower bucket (722) is provided with storage tank (7224), sealing washer (7211) and storage tank (7224) cooperation of pegging graft.

8. The punching and forming device for the high-precision PCB circuit board as claimed in claim 7, wherein: the placing rack (2) comprises a plurality of support legs (21) and a placing plate (22), the support legs (21) are fixedly connected to the lower surface of the placing plate (22), a placing groove is formed in the surface of the placing plate (22) and penetrates through the upper surface and the lower surface of the placing plate (22), a guide pipe (14) is fixedly connected to the lower surface of the placing plate (22), an opening at one end of the guide pipe (14) is formed in a mode of surrounding a notch of the placing groove, the other end of the guide pipe (14) is communicated with the side wall of a collecting barrel (72), the connecting position of the guide pipe (14) and the collecting barrel (72) is located between a box body (101) and filter cloth (91), and a control valve (141) is arranged on the guide pipe (14).

9. The punching and forming device for the high-precision PCB circuit board as claimed in claim 8, wherein: the upper surface of placing board (22) is provided with protection casing (15), the top of protection casing (15) is the opening setting, protection casing (15) enclose and close the setting of PCB circuit board.

10. A punching and forming process of a high-precision PCB (printed Circuit Board), which is used for construction by adopting the punching and forming equipment of the high-precision PCB of any one of claims 1 to 9, and is characterized by comprising the following steps;

s1: placing the PCB on a placing plate (22);

s2: opening the perforating machine (3), and simultaneously opening the fan (7) and the water supply equipment (12);

s3: and after the opening is finished, the perforating machine (3), the fan (7) and the water supply equipment (12) are closed, and the PCB is taken out.