CN115446918A

CN115446918A - Chip carrier PCB drilling machine

Info

Publication number: CN115446918A
Application number: CN202211344054.0A
Authority: CN
Inventors: 郑学昱; 傅伟理
Original assignee: Fujian Weizheng Intelligent Technology Co ltd
Current assignee: Fujian Weizheng Intelligent Technology Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2022-12-09

Abstract

The invention relates to a chip carrier PCB drilling machine which comprises a moving unit, a fixing unit, a drilling unit, a cooling unit, a dust removing unit and the like; the mobile unit is connected with a fixing unit used for fixing the position of the PCB; the drilling unit is connected with a cooling unit for cooling and removing chips at the drilling position; the rear part of the cooling unit is connected with a dust removal unit used for collecting dust and debris. According to the invention, through air suction of the dust-proof piece, scraps and dust enter the bellows through the guide pipe, then the dust and the scraps are filtered, the dust-proof piece shakes the dust scraps on the net surface of the dust-proof net, accumulation of the dust and the scraps on the dust-proof net is avoided, meanwhile, heat generated during drilling is taken away, and through positioning and clamping the left side, the right side and the four corners of the PCB, poor drilling quality caused by movement of the PCB and unevenness of the PCB during drilling is avoided.

Description

Chip carrier PCB drilling machine

Technical Field

The invention relates to the field of drilling machinery, in particular to a chip carrier PCB (printed circuit board) drilling machine.

Background

With the rapid rise of the field of intelligent devices, the demand of PCB as a chip carrier is gradually expanding, and thus the processing efficiency and precision requirements for the PCB are also gradually increasing.

The existing Chinese patent: (CN 114745855A) is used for the high-efficient numerical control drilling machine of circuit board production, through the block that sets up and the frame isostructure, place the circuit board in the frame, the frame sets up under the drill bit, a plurality of drill bits can carry out the drilling treatment to a plurality of circuit boards, improve drilling efficiency effectively, but because it is through the mode of increasing the drill bit, increase the work efficiency, the heat production of its during operation increases greatly, and the drilling machine only dispels the heat to the working motor, the heat that the friction of drill bit and circuit board produced, can't be evacuated in time, will cause the destruction to drill bit and circuit board;

and when drilling to the circuit board, there is the dust piece to produce, if increase a large amount of drill bits, produced dust piece can fly to fill whole workshop, and many workshops cause environmental pollution to and the fixed position unevenness of circuit board when drilling can lead to the drilling quality poor to beat the inclined hole, damages the drill bit more easily.

Disclosure of Invention

The technical problem of the invention is as follows:

the invention provides a chip carrier PCB (printed circuit board) drilling machine, aiming at overcoming the defects that when a circuit board is drilled, a drill bit and the circuit board generate a large amount of heat and generate dust and debris, the workshop environment is polluted, the drill bit and the circuit board are damaged, the circuit board is placed unevenly and the drilling quality is poor.

In order to solve the technical problems, the technical implementation scheme adopted by the invention is as follows:

a chip carrier PCB drilling machine comprises a bottom frame, a mounting buckle and a protective cover; the left part and the right part of the underframe are respectively fixedly connected with two mounting buckles; the upper part of the underframe is fixedly connected with a protective cover; the upper part of the protective cover is opened; the device also comprises a moving unit, a fixing unit, a drilling unit, a cooling unit and a dust removing unit; the underframe is connected with a mobile unit; the mobile unit is connected with a fixing unit used for fixing the position of the PCB; the rear part of the underframe is connected with a drilling unit for drilling the PCB; the drilling unit is connected with a cooling unit for cooling and removing chips at the drilling position; the rear part of the cooling unit is connected with a dust removal unit used for collecting dust and debris.

Further, the moving unit comprises a first electric slide rail, a first electric slide block and a cushion block; two first electric sliding rails are symmetrically arranged on the bottom frame; two first electric sliding blocks are connected to the two first electric sliding rails in a sliding manner; each first electric sliding block is fixedly connected with a cushion block; the four cushion blocks are connected with the fixing unit.

Further, the fixing unit comprises a first cross rod, a placing table, a first connecting rod, a positioning plate, a first electric actuator, an edge butt device, a second electric actuator and a second cross rod; a first cross rod is fixedly connected to the two left cushion blocks; the two cushion blocks on the right side are fixedly connected with another first cross rod; a placing table is fixedly connected between the two first cross rods; two first connecting rods are connected to the two first cross rods in a sliding manner; the first connecting rod is U-shaped; the two first connecting rods on the left side and the two first connecting rods on the right side are fixedly connected with a positioning plate respectively; the insides of the two positioning plates are hollowed; two first electric actuators are respectively arranged in the two positioning plates; the four first electric actuator telescopic parts are respectively fixedly connected with an edge butting device; two second electric actuators are symmetrically arranged on the lower surface of the placing table; two second cross rods are fixedly connected to the telescopic parts of the two second electric actuators respectively; the opposite sides of the two second cross rods are fixedly connected with the two first connecting rods respectively; the two second cross rods are respectively positioned below one positioning plate.

Further, a layer of rubber material is laid on the upper surface of the placing table.

Furthermore, the edge aligner is a clamping block with a circular arc edge.

Furthermore, the drilling unit comprises a supporting beam, a second electric sliding rail, a second electric sliding block, a fixing frame, a guide rail, a limiting rod, a vertical plate, a first power component, a fixer, a drill bit, a rack, a connecting frame, a second power component and a column gear; two support beams are fixedly connected to the rear part of the underframe; the upper parts of the two supporting beams are jointly provided with a second electric sliding rail; two second electric sliding blocks are connected to the second electric sliding rail in a sliding manner; the two second electric sliding blocks are respectively fixedly connected with a fixed frame; the lower parts of the two fixing frames are fixedly connected with a guide rail; the left part and the right part of the guide rail are respectively connected with two limiting rods in a rotating way; the opposite sides of the left two limiting rods and the right two limiting rods are connected with a vertical plate together; the lower surface of the vertical plate is connected with the cooling unit; the left part and the right part of the vertical plate are respectively provided with a sliding chute; the left two limiting rods are in contact with the front wall of the sliding chute; the right two limiting rods are contacted with the rear wall of the chute; a first power assembly is arranged on the front side of the vertical plate; the output shaft of the first power assembly is connected with a fixer; the fixer is detachably connected with a drill bit; the rear part of the vertical plate is fixedly connected with a rack; the rear part of the guide rail is fixedly connected with a connecting frame; the connecting frame is communicated with the opening at the rear part of the guide rail; a second power assembly is arranged on the right side of the connecting frame; the connecting frame is rotatably connected with a column gear; the right part of the column gear is fixedly connected with an output shaft of the second power assembly; the front part of the column gear is meshed with the rack.

Furthermore, the cooling unit comprises a second connecting rod, a U-shaped plate, an elastic piece, a supporting rod, a connecting plate, a contact rod, a dustproof piece, a guide pipe, a connecting block and an air box; the lower surface of the vertical plate is fixedly connected with a second connecting rod; the second connecting rod is L-like; the lower part of the second connecting rod is fixedly connected with a U-shaped plate; two elastic pieces are fixedly connected to the front part of the upper surface of the U-shaped plate; the upper parts of the two elastic parts are fixedly connected with a supporting rod respectively; the upper parts of the two supporting rods are respectively fixedly connected with a connecting plate; the rear parts of the lower surfaces of the two connecting plates are respectively movably connected with a contact rod; the lower parts of the two supporting rods are fixedly connected with a dustproof piece together; the lower part of the dustproof part is provided with a dust suction cavity; the rear part of the dustproof part is communicated with a conduit; the conduit is connected with the second connecting rod; two connecting blocks are fixedly connected to the lower part of the rear side of the guide rail; the lower parts of the two connecting blocks are connected with an air box together; the lower part of the air box is provided with an opening; the front part of the bellows is communicated with the guide pipe.

Furthermore, the dustproof piece is of a U-shaped structure.

Further, the dust removal unit comprises a third power assembly, a dust removal roller, a dust screen, a funnel, a dust collection box, a rotating shaft, a dust removal piece and a torsion spring; a third power assembly is arranged on the left side of the air box; the air box is rotationally connected with a dust removing roller; four grooves are arranged on the outer surface of the dust removing roller in an annular array manner; an output shaft of the third power assembly is fixedly connected with the dust removing roller; a dust screen is fixedly connected in the air box; the lower part of the air box is communicated with a funnel; the lower part of the funnel is detachably connected with a dust collection box; the dedusting roller is rotatably connected with four rotating shafts; the four rotating shafts are respectively positioned in one groove; a plurality of dust removing pieces are fixedly connected to the four rotating shafts respectively; the dust removing piece is in a water drop shape; and a torsion spring is respectively connected between the left part and the right part of each rotating shaft and the dust removing roller.

Further, the dust screen is obliquely arranged in the air box.

The beneficial effects are that:

1. through the convulsions of dust piece, pass through the pipe with piece and dust and get into to bellows in, wherein the dust screen that the slope set up in the bellows, dust and piece in the air of suction bellows are effectively filtered, the dust screen filters the dust and the piece of suction, the piece that removes dust shakes down with the dust piece on the wire side of dust screen again, it has dust and clastic piling up to avoid on the dust screen, lead to the filter effect to descend, the air drafting effect descends, and then the influence is to the cooling of drill bit and PCB board.

2. The air through locating the dustproof piece is taken out to bellows in, so the U-shaped mouth that forms in dustproof piece department is opened, is favorable to the circulation of air, so produces the heat when drilling, also is convenient for scatter and disappear, avoids the heat to pile up in drilling position and drill bit department, simultaneously, the dust and the piece that the drilling produced also handle together at this moment, and the piece that wherein splashes blocks through the dustproof piece, avoids the piece to splash to other departments.

3. Carry on spacingly to PCB circuit board's left and right directions through two locating plates, four edgers of rethread are fixed a position and are pressed from both sides tightly four angles of PCB circuit board, avoid the removal and the circuit board unevenness of PCB circuit board among the drilling process, and the poor condition of drilling quality that leads to takes place.

Drawings

FIG. 1 is a schematic perspective view of a chip carrier PCB drilling machine according to the present invention;

FIG. 2 is a front view of the chip carrier PCB circuit board drill of the present invention;

FIG. 3 is a schematic perspective view of a mobile unit of the drilling machine for chip carrier PCB circuit board of the present invention;

FIG. 4 is a schematic view of a first assembled perspective structure of the chip carrier PCB drilling machine of the present invention;

FIG. 5 is a schematic perspective view of a fixing unit of the drilling machine for chip carrier PCB circuit board of the present invention;

FIG. 6 is a schematic perspective view of a drilling unit of the drilling machine for chip carrier PCB circuit board of the present invention;

FIG. 7 is a schematic view of a partial three-dimensional structure of a drilling unit of the drilling machine for chip carrier PCB circuit board of the present invention;

FIG. 8 is a schematic perspective view of a cooling unit of the chip carrier PCB drilling machine of the present invention;

FIG. 9 is a schematic view of a partial three-dimensional structure of a cooling unit of the chip carrier PCB drilling machine of the present invention;

FIG. 10 is a schematic perspective view of a dust removal unit of the drilling machine for chip carrier PCB circuit board of the present invention;

FIG. 11 is a schematic view of a partial three-dimensional structure of a dust removal unit of the chip carrier PCB drilling machine of the present invention;

fig. 12 is a schematic perspective view of a dust removing unit of the drill for chip carrier PCB circuit board according to the present invention.

Part names and serial numbers in the figure:

1-underframe, 2-mounting buckle and 3-protective cover;

101-a first electric sliding rail, 102-a first electric sliding block, 103-a cushion block, 201-a first cross bar, 202-a placing table, 203-a first connecting rod, 204-a positioning plate, 205-a first electric actuator, 206-an edge aligner, 207-a second electric actuator, 208-a second cross bar, 301-a supporting beam, 302-a second electric sliding rail, 303-a second electric sliding block, 304-a fixing frame, 305-a guide rail, 306-a limiting rod, 307-a vertical plate, 308-a first power component, 309-a fixer, 3010-a drill, 3011-a rack, 3012-a connecting frame, 3013-a second power component, 3014-a column gear, 30701-a sliding chute, 401-a second connecting rod, 402-a U-shaped plate, 403-an elastic component, 404-a supporting rod, 405-an engaging plate, 406-a contact rod, 407-a dust-proof component, 408-a conduit, 409-a connecting block, 4010-a bellows, 501-a third power component, 502-a dust-collecting roller, 504-503-a dust collecting box, 505-a rotating shaft, a dust collecting box, and a dust collecting box, 507-508.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings.

Detailed description of the preferred embodiment

A chip carrier PCB circuit board drilling machine, as shown in fig. 1-2, comprising a chassis 1, a mounting buckle 2 and a protective cover 3; the left part and the right part of the underframe 1 are respectively fixedly connected with two mounting buckles 2; the upper part of the underframe 1 is welded with a protective cover 3; the upper part of the protective cover 3 is opened and used for storing and releasing the circuit board to be punched;

the device also comprises a moving unit, a fixing unit, a drilling unit, a cooling unit and a dust removing unit; the chassis 1 is connected with a mobile unit; the mobile unit is connected with a fixed unit; the rear part of the underframe 1 is connected with a drilling unit; the drilling unit is connected with a cooling unit; the rear part of the cooling unit is connected with a dust removal unit; on transferring to fixed unit with PCB circuit board, fixed unit fixes PCB circuit board, then the drilling unit is according to the preset demand that punches to the cooperation mobile unit punches to PCB circuit board, the cooling unit is bled the cooling to the position of punching simultaneously, and the dust piece that will punch the production is taken away together, and back dust piece is collected together by the dust removal unit.

Description of the preferred embodiment

On the basis of the embodiment 1, as shown in fig. 1 and 3, the moving unit includes a first electric sliding rail 101, a first electric sliding block 102 and a cushion block 103; two first electric slide rails 101 are symmetrically arranged on the underframe 1; two first electric sliding blocks 102 are respectively connected to the two first electric sliding rails 101 in a sliding manner; each first electric sliding block 102 is fixedly connected with a cushion block 103; the four spacers 103 are all connected with the fixing unit.

According to fig. 1 and fig. 4-5, the fixing unit comprises a first cross bar 201, a placing table 202, a first connecting bar 203, a positioning plate 204, a first electric actuator 205, an edge-aligning device 206, a second electric actuator 207 and a second cross bar 208; a first cross bar 201 is welded on the two left cushion blocks 103; another first cross rod 201 is welded on the two cushion blocks 103 on the right; a placing table 202 is welded between the two first cross rods 201; two first connecting rods 203 are connected to the two first cross rods 201 in a sliding mode; the first link 203 is U-shaped; the opposite sides of the left two first connecting rods 203 and the right two first connecting rods 203 are respectively welded with a positioning plate 204; the two positioning plates 204 are hollowed out; two first electric actuators 205 are respectively arranged in the two positioning plates 204; the first electric actuator 205 is an electric push rod; the four telescopic parts of the first electric actuator 205 are respectively fixedly connected with an edge butting device 206; two second electric actuators 207 are symmetrically arranged on the lower surface of the placing table 202; the second electric actuator 207 is an electric push rod; two second cross rods 208 are fixedly connected to the telescopic parts of the two second electric actuators 207 respectively; two second cross bars 208 are welded to two first connecting rods 203 on opposite sides thereof; two second cross bars 208 are each positioned below one of the positioning plates 204.

The upper surface of the placing table 202 is coated with a layer of rubber material.

The edge aligner 206 is a clamping block with a circular arc edge.

As shown in fig. 1 and fig. 6-7, the drilling unit includes a support beam 301, a second electric slide rail 302, a second electric slide block 303, a fixing frame 304, a guide rail 305, a limiting rod 306, a vertical plate 307, a first power assembly 308, a fixing device 309, a drill bit 3010, a rack 3011, a connecting frame 3012, a second power assembly 3013, and a column gear 3014; two support beams 301 are welded at the rear part of the underframe 1; the upper parts of the two support beams 301 are provided with a second electric slide rail 302; two second electric sliding blocks 303 are connected to the second electric sliding rail 302 in a sliding manner; the two second electric sliding blocks 303 are respectively fixedly connected with a fixed frame 304; the lower parts of the two fixing frames 304 are jointly bolted with a guide rail 305; the left part and the right part of the guide rail 305 are respectively connected with two limiting rods 306 in a rotating way; the opposite sides of the left two limiting rods 306 and the right two limiting rods 306 are connected with a vertical plate 307 together; the lower surface of the vertical plate 307 is connected with a cooling unit; the left part and the right part of the vertical plate 307 are respectively provided with a sliding groove 30701; the left two limiting rods 306 are in contact with the front wall of the sliding groove 30701; the two limiting rods 306 on the right contact with the rear wall of the sliding groove 30701; a first power assembly 308 is installed on the front side of the vertical plate 307; the first power assembly 308 is a servo motor; the output shaft of the first power assembly 308 is connected with a fixer 309; the holder 309 is detachably connected with a drill bit 3010; a rack 3011 is connected to the rear part of the vertical plate 307 through bolts; the rear part of the guide rail 305 is welded with a connecting frame 3012; the connecting frame 3012 is communicated with the opening at the rear part of the guide rail 305; a second power component 3013 is installed on the right side of the connecting frame 3012; the second power component 3013 is a servo motor; a column gear 3014 is rotatably connected to the connecting frame 3012; the right part of the column gear 3014 is fixedly connected with an output shaft of the second power component 3013; the front part of the post gear 3014 is engaged with the rack 3011.

According to fig. 1 and fig. 8-9, the cooling unit comprises a second connecting rod 401, a U-shaped plate 402, an elastic member 403, a supporting rod 404, a connecting plate 405, a contact rod 406, a dust-proof member 407, a conduit 408, a connecting block 409 and a wind box 4010; a second connecting rod 401 is connected to the lower surface of the vertical plate 307 through bolts; the second link 401 is L-like; a U-shaped plate 402 is welded at the lower part of the second connecting rod 401; two elastic pieces 403 are fixedly connected to the front part of the upper surface of the U-shaped plate 402; the elastic member 403 is a spring; the upper parts of the two elastic pieces 403 are respectively fixedly connected with a supporting rod 404; the upper parts of the two supporting rods 404 are respectively welded with a connecting plate 405; the rear parts of the lower surfaces of the two connecting plates 405 are respectively movably connected with a contact rod 406; the lower parts of the two supporting rods 404 are fixedly connected with a dustproof piece 407; the lower part of the dustproof piece 407 is provided with a dust suction cavity; the rear part of the dust-proof part 407 is communicated with a conduit 408; the conduit 408 is connected to the second link 401; the lower part of the rear side of the guide rail 305 is connected with two connecting blocks 409 through bolts; the lower parts of the two connecting blocks 409 are connected with an air box 4010 together; an opening is formed in the lower portion of the air box 4010; the front of bellows 4010 communicates with conduit 408.

The dust-proof member 407 has a U-shaped structure, which facilitates replacement of the drill 3010 and prevents splash debris generated during drilling.

According to fig. 1 and fig. 10-12, the dust removing unit comprises a third power assembly 501, a dust removing roller 502, a dust screen 503, a funnel 504, a dust collecting box 505, a rotating shaft 506, a dust removing piece 507 and a torsion spring 508; a third power assembly 501 is arranged on the left side of the wind box 4010; the third power assembly 501 is a servo motor; the air box 4010 is rotatably connected with a dust removing roller 502; four grooves 50201 are formed in the outer surface of the dust removing roller 502 in an annular array manner; an output shaft of the third power assembly 501 is fixedly connected with a dust removing roller 502; a dust screen 503 is fixedly connected in the bellows 4010; the lower part of the air box 4010 is communicated with a funnel 504; the lower part of the funnel 504 is detachably connected with a dust collection box 505; the dedusting roller 502 is rotatably connected with four rotating shafts 506; each of the four shafts 506 is positioned in one of the grooves 50201; a plurality of dust removing pieces 507 are fixedly connected to the four rotating shafts 506 respectively; the dust removing part 507 is in a water drop shape; a torsion spring 508 is connected between the left and right portions of each rotating shaft 506 and the dust removing roller 502.

The dust screen 503 is obliquely disposed in the bellows 4010.

The working principle is as follows:

an onboard fixing stage:

referring to the drawings, the specific implementation process shown in fig. 1 and fig. 4 to 5 is as follows: firstly, an operator transfers a cut PCB to a rubber layer of a placing table 202, wherein the rubber layer is used for effectively preventing the drill bit 3010 from impacting the placing table 202 to cause the damage of the placing table 202 and the drill bit 3010 after the drill bit 3010 penetrates through the PCB during the drilling of the PCB, and in order to reduce burrs generated during the drilling, the placing table 202 which is used as a bearing is arranged into a whole plate, thereby effectively realizing the requirement of drilling different positions of the PCB, so that after the PCB is placed on the placing table 202, the two second electric actuators 207 are controlled to be started, the two second electric actuators 207 are contracted to synchronously drive the two positioning plates 204 to move towards the directions close to each other, the two positioning plates 204 limit the left side and the right side of the PCB, then, the four first electric actuators 205 are controlled to be started, the four first electric actuators 205 are all contracted, and each edge aligner 206 is synchronously driven to move, wherein the two left edge aligners 206 and the two right edge aligners 206 move in the mutually approaching direction, when the arc edge of each edge aligner 206 contacts with the PCB, the right-angle edge of the PCB is guided by the arc edge of each edge aligner 206, the front and back positions of the PCB are adjusted, the left and right sides of the PCB are clamped and fixed by the two positioning plates 204, and the front and back positions of the PCB are fixed and clamped by the four edge aligners 206, so that the two second electric actuators 207 and the four first electric actuators 205 are controlled to be closed, and at the moment, the fixing of the PCB is finished, and the situation that the PCB is placed unevenly and the drilling quality is poor is caused is effectively avoided.

And (3) drilling:

referring to the drawings, the specific implementation process shown in fig. 1 and fig. 3 to 7 is as follows: after the circuit board is fixed, according to the punching requirement, a proper drill bit 3010 is fixed through the fixer 309, at this time, the PCB is punched according to the set program, the second power component 3013 is controlled to start, the output shaft of the second power component 3013 rotates to synchronously drive the drill bit 3010 to move downwards, at the same time, the first power component 308 is controlled to start, the output shaft of the first power component 308 rotates to synchronously drive the drill bit 3010 to rotate, then the drill bit 3010 drills the PCB, after the drill bit 3010 drills through the PCB, the drill bit 3010 contacts with the rubber layer on the placing table 202, the second power component 3013 is controlled to stop, when the drill bit 3010 drills, the drill bit 3010 grinds the PCB, the drill bit 3010 and the PCB generate a large amount of heat, at the same time, the cooling unit exhausts air to the punching position of the drill bit 3010 and the PCB, then, the second power assembly 3013 is controlled to be started, the output shaft of the second power assembly 3013 rotates reversely, the drill bit 3010 is synchronously driven to move upwards, the drill bit 3010 is separated from the rubber layer on the placing table 202, then the drill bit is withdrawn from the PCB, drilling of a hole site is completed at the moment, then the two second electric sliding blocks 303 are controlled to be synchronously arranged on the second electric sliding rails 302, the drill bit 3010 is moved leftwards and rightwards, drilling requirements of the PCB in the left-right direction are met, meanwhile, the four first electric sliding blocks 102 synchronously move on the two first electric sliding rails 101 respectively and drive the PCB to move forwards and backwards, the drilling requirements of the PCB in the front-back direction are met, and then the process is repeated until drilling work of any position of the PCB is completed.

A cooling and dedusting stage:

referring to the drawings, the specific implementation process shown in fig. 1 and fig. 8 to 12 is as follows: when drilling holes on the PCB each time, because the drill bit 3010 grinds the PCB, the drill bit 3010 and the PCB generate large amount of heat, the heat is accumulated at the drilling position, wherein the drilling holes generate dust and chippings, the chippings are not processed at the drilling position, the chippings obstruct the drilling holes of the drill bit 3010, the drill bit 3010 is easy to be worn or even broken, the service life of the drill bit 3010 is shortened, the chippings are accumulated, the heat is not easy to dissipate, the heat is continuously accumulated, and the PCB is damaged, therefore, when drilling holes on the PCB each time, the second power component 3013 is controlled to be started, the output shaft of the second power component 3013 rotates, when the drill bit 3010 is synchronously driven to move downwards, the dust-proof piece 407 is also synchronously driven to move downwards, when the dust-proof piece 407 contacts the surface of the PCB, the dust-proof piece continues to move downwards along with the drill bit 3010, the two elastic pieces 403 are stretched, so that the lower part of the dust-proof piece 407 is tightly attached to the surface of the PCB, through the adaptability of the elastic member 403, the damage of the dust-proof member 407 is effectively avoided, the dust-proof member 407 also has the functions of stabilizing the PCB and preventing local deformation, then the air at the position of the dust-proof member 407 is pumped into the air box 4010 by connecting the air box 4010 of the fan, so that a U-shaped opening is formed at the position of the dust-proof member 407, which is beneficial to air circulation, so that heat is generated during drilling and is easy to dissipate, heat is prevented from accumulating at the drilling position and the drill bit 3010, meanwhile, dust and debris generated by drilling are treated together at the same time, wherein the splashed debris is blocked by the dust-proof member 407, the debris is prevented from splashing to other positions, and the debris and dust are introduced into the air box 4010 through the guide pipe 408 by the air suction of the dust-proof member 407, wherein the dust-proof net 503 obliquely arranged in the air box 4010 effectively filters the dust and debris in the air pumped into the air box 4010, in order to avoid that the dust screen 503 is accumulated with dust and debris after being used for a period of time, which causes the reduction of the filtering effect and the reduction of the air draft effect, and further affects the cooling of the drill 3010 and the PCB, then, the third power assembly 501 is controlled to be started, the output shaft of the third power assembly 501 rotates to synchronously drive the dust removing roller 502 to rotate, the dust removing roller 502 drives a plurality of dust removing pieces 507 thereon to rotate, the dust removing pieces 507 are sequentially contacted with the screen surface of the dust screen 503, the dust debris on the screen surface of the dust screen 503 is shaken, in order to avoid the damage of the screen surface of the dust screen 503, when the dust removing pieces 507 rotate on the dust removing roller 502, the dust removing pieces 507 are contacted with the screen surface of the dust screen 503 by a water droplet-shaped arc surface, the dust removing pieces 507 are retracted into the groove 50201, at this time, the torsion spring 508 deforms, and when the dust removing pieces 507 are separated from the contact with the screen surface of the dust screen 503, the torsion spring 508 recovers to recover the dust removing part 507, wherein the swinging of the dust removing part 507 during the recovery effectively throws away the dust stained on the dust removing part 507 to avoid the dust from adhering to the dust removing part 507, which causes the problem that the power consumption of the third power assembly 501 is increased and the energy consumption is increased, then when the dust is flapped off from the dust screen 503, the dust is collected to the dust collection box 505 along the hopper 504, after the drilling machine operates for a period of time and a large amount of dust is collected in the dust collection box 505, an operator takes out the dust collection box 505 with the dust by pulling out the dust collection box 505 in the left-right direction, and then after the dust in the dust collection box 505 is processed, the dust collection box 505 is pushed back to the hopper 504 to avoid the dust flying and influence the environmental pollution of the workshop, thereby ensuring the health of the operator.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A chip carrier PCB drilling machine comprises an underframe (1), a mounting buckle (2) and a protective cover (3); the left part and the right part of the underframe (1) are respectively fixedly connected with two mounting buckles (2); the upper part of the underframe (1) is fixedly connected with a protective cover (3); the upper part of the protective cover (3) is opened;

the device is characterized by also comprising a moving unit, a fixing unit, a drilling unit, a cooling unit and a dust removal unit; the chassis (1) is connected with a mobile unit; the mobile unit is connected with a fixing unit used for fixing the position of the PCB; the rear part of the chassis (1) is connected with a drilling unit for drilling a PCB; the drilling unit is connected with a cooling unit for cooling and removing chips at the drilling position; the rear part of the cooling unit is connected with a dust removal unit used for collecting dust and debris.

2. The chip carrier PCB drilling machine as claimed in claim 1, wherein the moving unit comprises a first electric slide rail (101), a first electric slider (102) and a spacer block (103);

two first electric slide rails (101) are symmetrically arranged on the bottom frame (1); two first electric sliding blocks (102) are respectively connected to the two first electric sliding rails (101) in a sliding manner; each first electric sliding block (102) is fixedly connected with a cushion block (103); the four cushion blocks (103) are all connected with the fixing unit.

3. The PCB drilling machine of claim 2, wherein the fixing unit comprises a first cross bar (201), a placing table (202), a first connecting bar (203), a positioning plate (204), a first electric actuator (205), an edge aligner (206), a second electric actuator (207) and a second cross bar (208);

a first cross bar (201) is fixedly connected to the two left cushion blocks (103); the two cushion blocks (103) on the right are fixedly connected with another first cross rod (201); a placing table (202) is fixedly connected between the two first cross rods (201); two first connecting rods (203) are respectively connected to the two first cross rods (201) in a sliding manner; the first connecting rod (203) is U-shaped; two positioning plates (204) are fixedly connected to the opposite sides of the left two first connecting rods (203) and the right two first connecting rods (203); the insides of the two positioning plates (204) are hollowed; two first electric actuators (205) are respectively arranged in the two positioning plates (204); the telescopic parts of the four first electric actuators (205) are respectively fixedly connected with an edge butting device (206); two second electric actuators (207) are symmetrically arranged on the lower surface of the placing table (202); two second cross rods (208) are fixedly connected to the telescopic parts of the two second electric actuators (207) respectively; the opposite sides of the two second cross rods (208) are fixedly connected with the two first connecting rods (203); two second cross bars (208) are each positioned below one of the positioning plates (204).

4. The drilling machine for the chip carrier PCB circuit board as claimed in claim 3, wherein the drilling unit comprises a support beam (301), a second electric slide rail (302), a second electric slide block (303), a fixing frame (304), a guide rail (305), a limiting rod (306), a vertical plate (307), a first power component (308), a fixer (309), a drill bit (3010), a rack (3011), a connecting frame (3012), a second power component (3013) and a column gear (3014);

two support beams (301) are fixedly connected to the rear part of the underframe (1); the upper parts of the two supporting beams (301) are jointly provided with a second electric sliding rail (302); two second electric sliding blocks (303) are connected on the second electric sliding rail (302) in a sliding manner; two second electric sliding blocks (303) are respectively fixedly connected with a fixed frame (304); the lower parts of the two fixed brackets (304) are fixedly connected with a guide rail (305); the left part and the right part of the guide rail (305) are respectively connected with two limiting rods (306) in a rotating way; the opposite sides of the left two limiting rods (306) and the right two limiting rods (306) are connected with a vertical plate (307) together; the lower surface of the vertical plate (307) is connected with a cooling unit; the left part and the right part of the vertical plate (307) are respectively provided with a sliding groove (30701); the left two limiting rods (306) are in contact with the front wall of the sliding groove (30701); the two limiting rods (306) on the right contact with the rear wall of the sliding groove (30701); a first power assembly (308) is installed on the front side of the vertical plate (307); the output shaft of the first power assembly (308) is connected with a fixer (309); the fixer (309) is detachably connected with a drill bit (3010); a rack (3011) is fixedly connected to the rear part of the vertical plate (307); the rear part of the guide rail (305) is fixedly connected with a connecting frame (3012); the connecting frame (3012) is communicated with the opening at the rear part of the guide rail (305); a second power assembly (3013) is arranged on the right side of the connecting frame (3012); the connecting frame (3012) is rotatably connected with a column gear (3014); the right part of the column gear (3014) is fixedly connected with an output shaft of the second power component (3013); the front part of the post gear (3014) is meshed with the rack (3011).

5. The drilling machine for the chip carrier PCB circuit board as claimed in claim 4, wherein the cooling unit comprises a second connecting rod (401), a U-shaped plate (402), an elastic member (403), a supporting rod (404), a connecting plate (405), a contact rod (406), a dustproof member (407), a guide pipe (408), a connecting block (409) and a wind box (4010);

a second connecting rod (401) is fixedly connected to the lower surface of the vertical plate (307); the second connecting rod (401) is L-like; the lower part of the second connecting rod (401) is fixedly connected with a U-shaped plate (402); two elastic pieces (403) are fixedly connected to the front part of the upper surface of the U-shaped plate (402); the upper parts of the two elastic pieces (403) are respectively fixedly connected with a supporting rod (404); the upper parts of the two supporting rods (404) are respectively fixedly connected with a connecting plate (405); the rear parts of the lower surfaces of the two connecting plates (405) are respectively movably connected with a contact rod (406); the lower parts of the two support rods (404) are fixedly connected with a dustproof piece (407) together; the lower part of the dustproof piece (407) is provided with a dust suction cavity; the rear part of the dustproof piece (407) is communicated with a conduit (408); the conduit (408) is connected with the second connecting rod (401); two connecting blocks (409) are fixedly connected to the lower part of the rear side of the guide rail (305); the lower parts of the two connecting blocks (409) are connected with an air box (4010) together; the lower part of the air box (4010) is provided with an opening; the front of the bellows (4010) communicates with the conduit (408).

6. The PCB drilling machine for the chip carrier is characterized in that the dust removing unit comprises a third power assembly (501), a dust removing roller (502), a dust screen (503), a funnel (504), a dust collection box (505), a rotating shaft (506), a dust removing part (507) and a torsion spring (508);

a third power assembly (501) is arranged on the left side of the air box (4010); the air box (4010) is rotatably connected with a dust removing roller (502); four grooves (50201) are formed in the outer surface of the dust removing roller (502) in an annular array manner; an output shaft of the third power assembly (501) is fixedly connected with the dust removing roller (502); a dust screen (503) is fixedly connected in the air box (4010); the lower part of the air box (4010) is communicated with a funnel (504); the lower part of the funnel (504) is detachably connected with a dust collection box (505); four rotating shafts (506) are rotatably connected to the dust removing roller (502); each of the four rotating shafts (506) is positioned in one groove (50201); a plurality of dust removing pieces (507) are fixedly connected to the four rotating shafts (506); the dust removal part (507) is in a water drop shape; a torsion spring (508) is respectively connected between the left part and the right part of each rotating shaft (506) and the dust removing roller (502).

7. The chip carrier PCB drilling machine as claimed in claim 3, wherein a layer of rubber material is coated on the upper surface of the placing table (202).

8. The PCB drill of claim 3, wherein the edge aligner (206) is a clamp block with a circular edge.

9. The chip carrier PCB drill machine as claimed in claim 5, wherein the dust-proof member (407) is of a U-shaped structure.

10. The chip carrier PCB drill machine as claimed in claim 6, wherein the dust screen (503) is obliquely disposed in the bellows (4010).