CN212170698U - Drilling device for circuit board - Google Patents

Abstract

The utility model discloses a drilling equipment for circuit board, construct and drilling mechanism including drilling platform, feeding conveying mechanism, ejection of compact conveying mechanism, clamping, feeding conveying mechanism and ejection of compact conveying mechanism are located drilling platform's front and back both sides, and fixed connection is constructed on drilling platform's top surface to the clamping, and two drilling mechanism settings are in drilling platform's the left and right sides. The utility model discloses not only can realize the unloading in the automation of circuit board, can improve the precision and the efficiency of drilling moreover, reduce manual operation's intensity of labour.

Description

Drilling device for circuit board

Technical Field

The utility model relates to a drilling equipment for circuit board.

Background

At present, most electronic devices, such as electronic watches, calculators, general purpose computers, communication electronics, military weapon systems, etc., require printed circuit boards. Printed circuit boards need only bear mechanical supports for the fixed assembly of electronic components such as integrated circuits, and wiring and electrical connections therebetween. One of the necessary processes in the manufacture of printed circuit boards is drilling.

Along with the continuous access of technique, generally adopt the manipulator to catch the circuit board among the prior art, place the circuit board and carry out drilling processing at the processing platform, though realized also automatic unloading of going up, but manufacturing cost is high, and cost of maintenance is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a drilling equipment's for circuit board technical scheme to the not enough of prior art existence and provide, design through feeding conveyor, can carry the circuit board to drilling platform's clamping machine construct on, construct the clamping location back through clamping machine, rethread drilling machine constructs to carry out continuous drilling to the circuit board, circuit board after the drilling is carried to next station through ejection of compact conveyor, not only can realize the automatic unloading of circuit board on, and can improve the precision and the efficiency of drilling, reduce manual operation's intensity of labour, this drilling processing's method step is simple, not only can improve drilling machining efficiency and the precision to the circuit board, and can greatly reduced manual operation's intensity of labour, reduce manufacturing cost and cost of maintenance.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a drilling device for a circuit board, characterized in that: the drilling machine comprises a drilling platform, a feeding conveying mechanism, a discharging conveying mechanism, a clamping mechanism and drilling mechanisms, wherein the feeding conveying mechanism and the discharging conveying mechanism are positioned on the front side and the rear side of the drilling platform, the clamping mechanism is fixedly connected to the top surface of the drilling platform, and the two drilling mechanisms are arranged on the left side and the right side of the drilling platform; through the design of feeding conveying mechanism, can carry the circuit board to the clamping mechanism of drilling platform on, construct the clamping location back through the clamping, rethread drilling mechanism carries out drilling in succession to the circuit board, and the circuit board after the drilling is carried to next station through ejection of compact conveying mechanism, not only can realize the automatic unloading of going up of circuit board, can improve the precision and the efficiency of drilling moreover, reduces manual operation's intensity of labour.

Further, feed conveying mechanism and ejection of compact conveying mechanism all include two mutual parallel arrangement's curb plate, drive assembly and drive assembly, evenly be provided with the mounting hole on the curb plate, all be provided with the backup pad on the bottom surface of curb plate, through locating lever fixed connection between two curb plates, drive assembly connects on the curb plate, drive assembly connects on one side curb plate, drive assembly connects drive assembly, design through the curb plate, not only can be convenient for drive assembly's stable installation, improve the stability of drive assembly during operation, and can make the circuit board remain stable in transportation process, the noise reduction, the design of mounting hole is convenient for drive assembly's installation dismantlement, easy maintenance is swift, the backup pad has improved the stability of curb plate installation, drive assembly can drive assembly work, and then realize the transport to the circuit board.

Further, the transmission assembly comprises a first riding wheel, a first transmission wheel, a first belt, a second riding wheel, a second transmission wheel and a second belt, the first riding wheel and the second riding wheel are uniformly distributed on the inner side surfaces of the two side plates, the first riding wheel is connected with the side plates through a first connecting shaft, the second riding wheel is connected with the side plates through a second connecting shaft, the first connecting shaft and the second connecting shaft are matched with the mounting holes, the first transmission wheel and the second transmission wheel are respectively connected with the first connecting shaft and the second connecting shaft and are positioned on the outer side of one side plate, a first auxiliary wheel and a second auxiliary wheel are arranged on the side plates, the first transmission wheel is connected with the first auxiliary wheel through the first belt, the second transmission wheel is connected with the second auxiliary wheel through the second belt, the first connecting shaft and the second connecting shaft on the first riding wheel and the second riding wheel which are close to each other are connected with the driving assembly, and the first connecting shaft improves the stability and the reliability of the connection between the first riding wheel and the side plates, the first supporting wheels are prevented from shaking when rotating, so that the stable conveying of the circuit board is prevented from being influenced, the second connecting shaft improves the stability and reliability of connection between the second supporting wheels and the side plates, the second supporting wheels are prevented from shaking when rotating, so that the conveying of the circuit board is prevented from being influenced, the first belt can drive the first driving wheel and the first auxiliary wheel to synchronously rotate, so that the rotating speed of each first supporting wheel can be ensured to be the same, the second belt can drive the second driving wheel and the second auxiliary wheel to synchronously rotate, the rotating speed of each second supporting wheel is ensured to be the same, the stable conveying of the circuit board is realized, the driving assembly can drive the two first connecting shafts and the second connecting shafts which are close to each other to synchronously rotate, so that the first belt and the second belt are driven to rotate at a constant speed by the corresponding first driving wheel and the second driving wheel, the feeding and discharging of the circuit board can be ensured, and the distance between the two adjacent, the collision is prevented, and the rubber ring is arranged on the circumferential side face of each first riding wheel, each second riding wheel and the circuit board, so that the friction force between the first riding wheel and the circuit board and the bottom face of the circuit board is increased, and the circuit board is prevented from being abraded.

Furthermore, evenly be provided with first pinch roller and second pinch roller on the lateral surface of curb plate, first pinch roller and second pinch roller support first belt and second belt, through the design of first pinch roller and second pinch roller, can compress tightly first belt and second belt effectively, improve the tensile force of first belt and second belt, prevent that first belt and second belt from taking place to skid at the during operation, influence the normal transport of circuit board.

Furthermore, the driving assembly comprises a driving motor, a speed reducer and a third belt, the driving motor is connected with the speed reducer, the speed reducer is fixedly connected on a first mounting plate, the first mounting plate is connected with a side plate through a first fixing rod, a second mounting plate is connected with the side plate through a second fixing rod, the second mounting plate is positioned above the first mounting plate, an output shaft of the speed reducer is connected with a driving wheel, a driven wheel is connected on a first connecting shaft and a second connecting shaft which are close to each other, the driving wheel and the driven wheel are connected through the third belt, the driving wheel is driven by the driving motor through the speed reducer to rotate, and the two driven wheels are further driven by the third belt to rotate, so that the first belt and the second belt are driven, the connecting mechanism between the driving assembly and the transmission assembly is greatly simplified through the structural design, the maintenance is convenient, and the stability and the reliability of the installation, the second mounting panel has improved the stability of being connected between follow driving wheel and first drive wheel and the second drive wheel, improves transmission efficiency.

Further, the clamping mechanism comprises a base plate, a lifting plate, a clamping assembly and a push plate assembly, the base plate is fixedly connected to the top surface of the drilling platform through a support bar, the lifting plate is movably connected above the base plate through the lifting assembly, first limiting plates are symmetrically arranged on two sides of the top surface of the lifting plate, the clamping assembly is symmetrically arranged on the other two side edges of the lifting plate, the push plate assembly is connected to the top surface of the base plate and is positioned between the lifting plate and the base plate, the push plate assembly comprises a driving roller, the driving roller is connected with the base plate through a support, a boosting motor is arranged on one side of the driving roller, a through groove is formed in the lifting plate, the size of the through groove is larger than that of the driving roller, the stability of connection between the base plate and the drilling platform is improved, the stability of circuit, satisfy the requirement of circuit board drilling and transport, first limiting plate can fix a position the both sides of circuit board, the clamping subassembly can realize the tight location of clamp to the circuit board, stability and reliability when improving the circuit board drilling, the push pedal subassembly can adjust the position of circuit board, the clamping circuit board of being convenient for, it is rotatory to drive the drive roller through the boosting motor, and then can drive circuit board horizontal migration, lead to the groove and be convenient for the drive roller and stretch out the lifter plate, direct bottom surface contact with the circuit board, promote the circuit board and remove, be provided with anti-skidding wearing layer on the lateral surface of drive roller, be provided with the locating piece on the medial surface of first limiting plate, this locating piece is single layer construction, support.

Further, the lifting assembly comprises first cylinders, first piston rods and first guide rods, two first cylinders are fixedly connected at the center of the top surface of the base plate, the first cylinders are connected with the lifting plate through the first piston rods, first guide rods are symmetrically arranged on two sides of the top surface of the base plate, the first guide rods penetrate through the lifting plate, the first piston rods are driven to move up and down through the first cylinders, the lifting plate is further pushed to move up and down, the stability and the reliability of the lifting plate in the up and down moving process are improved through the first guide rods, and the lifting plate is prevented from inclining to influence the drilling efficiency and the drilling precision of the circuit board.

Further, the clamping assembly comprises a second limiting plate, a horizontal moving plate and a second cylinder, the second limiting plate is fixedly connected to the top surface of the horizontal moving plate, a positioning block is arranged on the inner side surface of the second limiting plate, the second limiting plate is movably connected with the lifting plate through a second guide rod, the second cylinder is fixedly connected to the bottom surface of the lifting plate, a second piston rod is connected to the second cylinder, the second piston rod is connected with the horizontal moving plate through a joint rod, the second limiting plate can position the other two side surfaces of the circuit board, the positioning block is arranged in an upper-lower double-layer mode, the circuit board is supported through the positioning block, meanwhile, the circuit board can be prevented from jumping up and down when a drill drills or withdraws the circuit board, the second cylinder drives the second piston rod to move horizontally, and then the horizontal moving plate is driven to move horizontally along the second, the operation is flexible and convenient.

Further, the drilling mechanism comprises a base, a fixed table, a cantilever and a balance block, wherein the base is movably connected on a slide rail, third air cylinders are symmetrically arranged on the top surface of the base and are connected with the fixed table through third piston rods, the fixed table is positioned above the base, the cantilever is rotatably connected above the fixed table through a rotating shaft, a first motor is arranged on the side surface of the fixed table and is connected with the rotating shaft through a gear set, a fourth air cylinder is arranged in the cantilever and is connected with the balance block through a fourth piston rod, a second motor is arranged on the top surface of the balance block, a sleeve is arranged on the bottom surface of the balance block and is connected with a drill bit through the rotating shaft, the sleeve is positioned outside the rotating shaft, the base can horizontally move along the slide rail, the cantilever is further driven to move along the conveying direction of the circuit board, the working range of the drilling mechanism is enlarged, and the third, the realization is to the regulation of cantilever height, further adjust the high position of drill bit, satisfy the drilling processing of different thickness circuit boards, it is rotatory that first motor can drive the axis of rotation through the gear train, and then drive the drill bit level through the cantilever and rotate, adjust the position of drill bit, the fourth cylinder can drive balancing piece horizontal migration through the fourth piston rod, and then drive the drill bit and remove along the vertical direction of circuit board moving direction, the work flexibility of drill bit is improved, the second motor can drive the drill bit continuous rotation through the pivot, the drilling processing to the circuit board is realized, the sleeve has improved the stability when the pivot is rotatory.

A drilling method using a drilling apparatus for a circuit board as described above, characterized by comprising the steps of:

1) mounting of clamping mechanism

a. Firstly, manufacturing a corresponding drilling platform according to design requirements, horizontally placing and fixing the drilling platform, polishing the top surface of the drilling platform, selecting a proper substrate, and fixedly installing the substrate on the top surface of the drilling platform through a supporting bar, so that the stability and reliability of substrate installation are improved, and the phenomenon that the final circuit board is inclined during drilling and machining due to the inclination of the substrate to influence the drilling precision is prevented;

b. then selecting two driving rollers with matched sizes according to design requirements, installing the driving rollers at set positions on the top surface of the base plate through a support, installing a boosting motor on one side of the driving rollers, symmetrically installing first guide rods along the top surface of the base plate according to the design requirements, wherein the distribution positions of the first guide rods are parallel to the moving direction of the circuit board, the stability of installation of the driving rollers can be improved through the support, the driving rollers can be driven by the boosting motor to rotate stably, and the stability of the lifting plate in the up-and-down moving process can be improved through the first guide rods;

c. selecting a lifting plate with a proper size after the push plate assembly is installed, arranging two through grooves on the lifting plate according to the position of the driving roller, enabling the size of each through groove to be larger than that of the driving roller, arranging a through hole on the lifting plate according to the position of the first guide rod, enabling the through hole to be matched with the first guide rod, and symmetrically arranging first limiting plates along the top surface of the lifting plate according to the size of a circuit board;

d. the clamping components are symmetrically arranged on two sides of the lifting plate according to design requirements, first, second air cylinders are symmetrically arranged along the bottom surface of the lifting plate, second piston rods are arranged on the second air cylinders, second guide rods are horizontally arranged along the side surfaces of the lifting plate, then, a horizontal moving plate with a proper size is selected, the horizontal moving plate is sleeved on the second guide rods, meanwhile, the bottom surface of the horizontal moving plate is connected with the second piston rods through connecting rods, then, second limit blocks with corresponding sizes are machined, the second limit blocks are fixedly connected to the top surface of the horizontal moving plate, clamping and supporting of the circuit board can be achieved through the clamping components, and stability and reliability of the circuit board during drilling are improved;

e. finally, two first cylinders are installed in the center of the top surface of the base plate, first piston rods are connected to the first cylinders, the processed lifting plate is horizontally placed, the first guide rods vertically penetrate through the lifting plate, meanwhile, the top ends of the first piston rods are fixedly connected to the bottom surface of the lifting plate, the first piston rods are driven by the first cylinders to move up and down, and therefore the lifting plate can be driven to stably move up and down;

the mounting steps of the clamping mechanism are simple, the collision of the push plate assembly, the lifting assembly and the clamping assembly during mounting can be avoided, the size of each mounting step can be adjusted conveniently, the requirement of actual processing is met, and the stability and the reliability of the circuit board during drilling are improved.

2) Drilling mechanism mounting

a. Firstly, a base and a fixed platform are machined according to design requirements, the base is connected to a sliding rail, two third air cylinders are symmetrically arranged along the top surface of the base, the fixed platform is connected with the third air cylinders through third piston rods, a rotating shaft is vertically arranged along the top surface of the fixed platform, the bottom end of the rotating shaft is connected to the inside of the fixed platform, meanwhile, a first motor is arranged on one side of the fixed platform, the first motor is connected with the rotating shaft through a gear set, the fixed platform can be driven to move up and down along the base through the third air cylinders and the third piston rods, the height positions of a cantilever and a drill bit are adjusted, the first motor drives the rotating shaft to rotate through the gear set, and the angle positions of;

b. then processing a corresponding cantilever and a corresponding balance block, fixedly connecting the cantilever to the top end of the rotating shaft, horizontally installing a fourth air cylinder along the inside of the cantilever, connecting the fourth air cylinder with the balance block through a fourth piston rod, driving the balance block to horizontally move through the fourth air cylinder and the fourth piston rod, and adjusting the position of the balance block;

c. then selecting a proper second motor, fixedly installing the second motor on the top surface of the balance block, connecting a drill bit on the second motor through a rotating shaft, enabling the rotating shaft to penetrate through the balance block, installing a sleeve on the outer side of the rotating shaft, enabling the sleeve to be fixedly connected on the bottom surface of the balance block, and driving the drill bit to rotate through the rotating shaft through the second motor to meet the requirement of continuous drilling of the circuit board;

the drilling mechanism is simple in installation steps, the working range of the drill bit is enlarged, the drill bit can be flexibly moved according to actual needs, the precision and the efficiency of drilling the circuit board are greatly improved, and automatic processing is achieved.

3) Installation of feeding conveying mechanism and discharging conveying mechanism

a. The manufacturing method comprises the following steps of firstly manufacturing corresponding side plates according to design requirements, uniformly forming mounting holes along the side plates, mounting a support plate on the bottom surfaces of the side plates, placing the two side plates in parallel, fixedly connecting the side plates through positioning rods, ensuring that the mounting holes are positioned on the same horizontal line, improving the mounting precision of a first riding wheel and a second riding wheel, enabling the circuit board to realize horizontal linear movement transportation, improving the connection strength and stability between the two side plates through the positioning rods, and preventing the side plates from shaking during working;

b. then, a first mounting plate and a second mounting plate are respectively mounted along the outer side of the side plate on one side through a first fixing rod and a second fixing rod, the second mounting plate is located above the first mounting plate, a proper driving motor and a proper speed reducer are selected, the driving motor is connected to the first mounting plate through the speed reducer, a driving wheel is mounted on an output shaft of the speed reducer, two driven wheels are mounted along the inner side surface of the second mounting plate, and the driven wheels are connected with the driving wheel through a third belt, so that the mounting stability and reliability of the driving motor and the speed reducer are improved, meanwhile, the connection stability between the driving wheel and the driven wheels is improved, and the transmission efficiency is improved;

c. then selecting a first riding wheel and a second riding wheel with proper sizes, respectively and uniformly connecting the first riding wheel and the second riding wheel to the inner sides of two side plates through a first connecting shaft and a second connecting shaft, ensuring that the distance between each group of two first riding wheels or two second riding wheels is equal, respectively installing a first driving wheel and a second driving wheel along one end of each first connecting shaft and one end of each second connecting shaft, enabling the first driving wheel and the second driving wheel to be positioned at the outer sides of the side plates, simultaneously, uniformly installing a first pressing roller and a second pressing roller on the upper parts of the outer sides of the side plates, installing a first auxiliary roller and a second auxiliary roller on the lower parts of the side plates, respectively connecting the first connecting shaft and the second connecting shaft on the two first driving wheels and the second driving wheels which are close to each other, respectively connecting two driven wheels, driving the two adjacent first connecting shafts and second connecting shafts to rotate through the driven wheels, and further driving the corresponding first driving wheels and second driving wheels to rotate, the first belt and the second belt are driven, all the first driving wheels and all the second driving wheels are driven to rotate, and therefore all the first riding wheels and all the second riding wheels can stably rotate to convey the circuit board;

d. finally, the first driving wheel, the first auxiliary wheel and the first pressing roller are connected through a first belt, and the second driving wheel, the second auxiliary wheel and the second pressing roller are connected through a second belt, so that the driving stability is improved;

the mounting steps of the feeding conveying mechanism and the discharging conveying mechanism are simple, the transmission efficiency of the transmission mechanism can be improved, the stable operation of the whole feeding conveying mechanism and the discharging conveying mechanism can be ensured, and the noise generated when the circuit board is conveyed is greatly reduced.

4) Circuit board drilling

a. Firstly, a circuit board to be drilled is placed on a feeding and conveying mechanism, a driving assembly is started, the circuit board is driven to horizontally move through a transmission assembly until the circuit board is conveyed to a drilling platform, and the driving assembly stops working;

b. then starting the push plate assembly to enable the circuit board to move to a horizontal position, starting the first air cylinder to lift the lifting plate to a set height, positioning two sides of the circuit board through the first limiting plate, starting the clamping assembly to clamp and position the other two side faces of the circuit board, starting the first air cylinder, driving the circuit board of the lifting plate to ascend to the set height position through the first piston rod, and ensuring that the height of the lifting plate is higher than that of the driving roller;

c. drilling the circuit board through the drilling mechanism, driving the lifting plate and the circuit board to descend to a set height through the first air cylinder after the processing is finished, loosening the clamping assembly, and enabling the lifting plate to continue to descend to the set height through the first air cylinder;

d. and finally, starting the push plate component, conveying the processed circuit board to a discharge conveying mechanism, conveying the circuit board to the next station through the discharge conveying mechanism, and then drilling the next circuit board.

The drilling method has simple steps, can improve the drilling efficiency and precision of the circuit board, and can greatly reduce the labor intensity of manual operation.

The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:

1. through the design of feeding conveying mechanism, can carry the circuit board to the clamping mechanism of drilling platform on, construct the clamping location back through the clamping, rethread drilling mechanism carries out drilling in succession to the circuit board, and the circuit board after the drilling is carried to next station through ejection of compact conveying mechanism, not only can realize the automatic unloading of going up of circuit board, can improve the precision and the efficiency of drilling moreover, reduces manual operation's intensity of labour.

2. The mounting steps of the clamping mechanism are simple, the collision of the push plate assembly, the lifting assembly and the clamping assembly during mounting can be avoided, the size of each mounting step can be adjusted conveniently, the requirement of actual processing is met, and the stability and the reliability of the circuit board during drilling are improved.

3. The drilling mechanism is simple in installation steps, the working range of the drill bit is enlarged, the drill bit can be flexibly moved according to actual needs, the precision and the efficiency of drilling the circuit board are greatly improved, and automatic processing is achieved.

4. The mounting steps of the feeding conveying mechanism and the discharging conveying mechanism are simple, the transmission efficiency of the transmission mechanism can be improved, the stable operation of the whole feeding conveying mechanism and the discharging conveying mechanism can be ensured, and the noise generated when the circuit board is conveyed is greatly reduced.

5. The drilling method has simple steps, can improve the drilling efficiency and precision of the circuit board, and can greatly reduce the labor intensity of manual operation.

Description of the drawings:

the present invention will be further explained with reference to the accompanying drawings:

fig. 1 is a schematic structural diagram of a drilling device for a circuit board according to the present invention;

FIG. 2 is a schematic structural view of a feeding and conveying mechanism and a discharging and conveying mechanism of the present invention;

fig. 3 is a schematic view of the connection between the driving assembly and the side plate according to the present invention;

FIG. 4 is a schematic structural view of the clamping mechanism of the present invention;

FIG. 5 is a schematic view of the connection between the lifter plate and the base plate according to the present invention;

fig. 6 is a schematic structural view of a second limiting plate according to the present invention;

fig. 7 is a schematic structural view of the drilling mechanism of the present invention.

In the figure: 1-drilling a platform; 2-a feeding and conveying mechanism; 3-a discharge conveying mechanism; 4-a clamping mechanism; 5-a drilling mechanism; 6-side plate; 7-a circuit board; 8-a first connecting shaft; 9-a first riding wheel; 10-a first drive wheel; 11-a first belt; 12-a first pinch roller; 13-a second connecting shaft; 14-a second riding wheel; 15-a second transmission wheel; 16-a second belt; 17-a second pinch roller; 18-a support plate; 19-a drive assembly; 20-positioning rods; 21-mounting holes; 22-a drive motor; 23-a reducer; 24-a first mounting plate; 25-a second mounting plate; 26-a third belt; 27-a first fixing bar; 28-a second fixation bar; 29-a substrate; 30-supporting strips; 32-a lifter plate; 33-a first guide bar; 34-a first limiting plate; 35-a clamping assembly; 36-through grooves; 37-a pusher plate assembly; 38-a drive roller; 39-a scaffold; 40-a first cylinder; 41-a first piston rod; 42-horizontally moving the plate; 43-a second cylinder; 44-a second piston rod; 45-a second guide bar; 46-a second limiting plate; 47-a positioning block; 48-a base; 49-a slide rail; 50-a third cylinder; 51-a third piston rod; 52-a stationary table; 53-a first electric machine; 54-a cantilever; 55-a rotating shaft; 56-balance weight; 57-a fourth cylinder; 58-a fourth piston rod; 59-a second motor; 60-a sleeve; 61-rotating shaft.

Detailed Description

As shown in figures 1 to 7, the drilling device for circuit board of the present invention comprises a drilling platform 1, a feeding conveying mechanism 2, a discharging conveying mechanism 3, a clamping mechanism 4 and a drilling mechanism 5, wherein the feeding conveying mechanism 2 and the discharging conveying mechanism 3 are located at the front and rear sides of the drilling platform 1, the feeding conveying mechanism 2 and the discharging conveying mechanism 3 both comprise two side plates 6, a transmission assembly and a driving assembly 19, which are arranged in parallel, mounting holes 21 are uniformly arranged on the side plates 6, supporting plates 18 are arranged on the bottom surfaces of the side plates 6, the two side plates 6 are fixedly connected by a positioning rod 20, the transmission assembly is connected to the side plates 6, the driving assembly 19 is connected to one side plate 6, the driving assembly 19 is connected to the transmission assembly, and by the design of the side plates 6, not only the stable installation of the transmission assembly can be facilitated, and the stability of the transmission assembly during operation can be, and can make circuit board 7 remain stable in transportation process, noise reduction, the design of mounting hole 21 is convenient for transmission assembly's installation dismantlement, and easy maintenance is swift, and backup pad 18 has improved the stability of curb plate 6 installation, and drive assembly 19 can drive transmission assembly work, and then realizes the transport to circuit board 7.

The transmission assembly comprises a first riding wheel 9, a first transmission wheel 10, a first belt 11, a second riding wheel 14, a second transmission wheel 15 and a second belt 16, the first riding wheel 9 and the second riding wheel 14 are uniformly distributed on the inner side surfaces of the two side plates 6, the first riding wheel 9 is connected with the side plates 6 through a first connecting shaft 8, the second riding wheel 14 is connected with the side plates 6 through a second connecting shaft 13, the first connecting shaft 8 and the second connecting shaft 13 are matched with the mounting hole 21, the first transmission wheel 10 and the second transmission wheel 15 are respectively connected with the first connecting shaft 8 and the second connecting shaft 13 and are positioned at the outer side of one side plate 6, the side plates 6 are provided with a first auxiliary wheel and a second auxiliary wheel, the first transmission wheel 10 is connected with the first auxiliary wheel through the first belt 11, the second transmission wheel 15 is connected with the second auxiliary wheel through the second belt 16, the first connecting shaft 8 and the second connecting shaft 13 on the first riding wheel 9 and the second riding wheel 14 which are close to each other are connected with a driving assembly 19, the first connecting shaft 8 improves the stability and reliability of connection between the first riding wheel 9 and the side plate 6, the first riding wheel 9 is prevented from shaking when rotating, and further the stable transmission of the circuit board 7 is influenced, the second connecting shaft 13 improves the stability and reliability of connection between the second riding wheel 14 and the side plate 6, the second riding wheel 14 is prevented from shaking when rotating, and the transmission of the circuit board 7 is influenced, the first belt 11 can drive the first driving wheel 10 and the first auxiliary wheel to synchronously rotate, and further the rotating speed of each first riding wheel 9 is ensured to be the same, the second belt 16 can drive the second driving wheel 15 and the second auxiliary wheel to synchronously rotate, and the rotating speed of each second riding wheel 14 is ensured to be the same, so that the stable transmission of the circuit board 7 is realized, the driving assembly 19 can drive the two first connecting shafts 8 and the second connecting shafts 13 which are close to each other to synchronously rotate, and further drive the first belt 11 and the second belt 16 to rotate through the corresponding first driving wheel 10 and the second driving wheel 15, not only can guarantee going up at the uniform velocity of circuit board 7 and go up the unloading, be convenient for control the interval between two adjacent circuit boards 7 moreover, prevent to bump, all be provided with the rubber circle on every first riding wheel 9 and second riding wheel 14 and the circumference side of circuit board 7 contact, increased with the frictional force between the circuit board 7 bottom surface, avoid simultaneously causing wearing and tearing to circuit board 7.

Evenly be provided with first pinch roller 12 and second pinch roller 17 on the lateral surface of curb plate 6, first pinch roller 12 and second pinch roller 17 support first belt 11 and second belt 16, through the design of first pinch roller 12 and second pinch roller 17, can compress tightly first belt 11 and second belt 16 effectively, improve the tensile force of first belt 11 and second belt 16, prevent that first belt 11 and second belt 16 from taking place to skid at the during operation, influence the normal transport of circuit board 7.

The driving assembly 19 comprises a driving motor 22, a speed reducer 23 and a third belt 26, the driving motor 22 is connected with the speed reducer 23, the speed reducer 23 is fixedly connected on a first mounting plate 24, the first mounting plate 24 is connected with a side plate 6 through a first fixing rod 27, a second mounting plate 25 is connected with the side plate 6 through a second fixing rod 28, the second mounting plate 25 is positioned above the first mounting plate 24, an output shaft of the speed reducer 23 is connected with a driving wheel, a first connecting shaft 8 and a second connecting shaft 13 which are close to each other are both connected with a driven wheel, the driving wheel and the driven wheel are connected through the third belt 26, the driving motor 22 drives the driving wheel to rotate through the speed reducer 23, and further drives the two driven wheels to rotate through the third belt 26, so as to drive the first belt 11 and the second belt 16, the design of the structure greatly simplifies a connecting mechanism between the driving assembly 19 and, the maintenance is convenient, the first mounting plate 24 improves the stability and the reliability of the installation of the driving motor 22 and the speed reducer 23, and the second mounting plate 25 improves the stability of connection between the driven wheel and the first driving wheel 10 and the second driving wheel 15, thereby improving the transmission efficiency.

The clamping mechanism 4 is fixedly connected on the top surface of the drilling platform 1, the clamping mechanism 4 comprises a base plate 29, a lifting plate 32, a clamping assembly 35 and a push plate assembly 37, the base plate 29 is fixedly connected on the top surface of the drilling platform 1 through a supporting bar 30, the lifting plate 32 is movably connected above the base plate 29 through the lifting assembly, first limiting plates 34 are symmetrically arranged on two sides of the top surface of the lifting plate 32, the clamping assemblies 35 are symmetrically arranged on the other two side edges of the lifting plate 32, the push plate assembly 37 is connected on the top surface of the base plate 29 and is positioned between the lifting plate 32 and the base plate 29, the push plate assembly 37 comprises a driving roller 38, the driving roller 38 is connected with the base plate 29 through a support 39, a boosting motor is arranged on one side of the driving roller 38, a through groove 36 is arranged on the lifting plate 32, the size of the through groove 36 is larger than, further improves the stability of clamping the circuit board 7, improves the precision of drilling, the lifting component can drive the lifting plate 32 to move up and down along the base plate 29, meets the requirements of drilling and conveying the circuit board 7, the first limiting plate 34 can position the two sides of the circuit board 7, the clamping component 35 can clamp and position the circuit board 7, improves the stability and reliability of drilling the circuit board 7, the push plate component 37 can adjust the position of the circuit board 7, is convenient for clamping the circuit board 7, drives the driving roller 38 to rotate through the boosting motor, and then can drive circuit board 7 horizontal migration, logical groove 36 is convenient for drive roller 38 to stretch out lifter plate 32, and direct and circuit board 7's bottom surface contact promotes circuit board 7 and removes, is provided with anti-skidding wearing layer on the lateral surface of drive roller 38, is provided with locating piece 47 on the medial surface of first limiting plate 34, supports circuit board 7.

Lifting unit includes first cylinder 40, first piston rod 41 and first guide arm 33, two first cylinder 40 fixed connection are in the top surface center department of base plate 29, first cylinder 40 connects lifter plate 32 through first piston rod 41, the top surface bilateral symmetry of base plate 29 is provided with first guide arm 33, first guide arm 33 runs through lifter plate 32, drive first piston rod 41 through first cylinder 40 and reciprocate, and then promote lifter plate 32 and reciprocate, first guide arm 33 has improved lifter plate 32 and has reciprocated stability and reliability of in-process, prevent that lifter plate 32 from taking place the slope and influencing circuit board 7's drilling efficiency and drilling precision.

The clamping assembly 35 includes a second limiting plate 46, a horizontal moving plate 42 and a second cylinder 43, the second limiting plate 46 is fixedly connected to the top surface of the horizontal moving plate 42, a positioning block 47 is arranged on the inner side surface of the second limiting plate 46, the second limiting plate 46 is movably connected to the lifting plate 32 through a second guide rod 45, the second cylinder 43 is fixedly connected to the bottom surface of the lifting plate 32, a second piston rod 44 is connected to the second cylinder 43, the second piston rod 44 is connected to the horizontal moving plate 42 through a joint rod, the second limiting plate 46 can position the other two side surfaces of the circuit board 7, the circuit board 7 is supported through the positioning block 47, the second piston rod 44 is driven to horizontally move through the second cylinder 43, and then the horizontal moving plate 42 is driven to horizontally move along the second guide rod 45 through the joint rod, so that the circuit board 7 is clamped or loosened, and the.

Two drilling mechanisms 5 are arranged at the left side and the right side of the drilling platform 1, each drilling mechanism 5 comprises a base 48, a fixed platform 52, a cantilever 54 and a balance block 56, the base 48 is movably connected on a sliding rail 49, third air cylinders 50 are symmetrically arranged on the top surface of the base 48, the third air cylinders 50 are connected with the fixed platform 52 through third piston rods 51, the fixed platform 52 is positioned above the base 48, the cantilever 54 is rotatably connected above the fixed platform 52 through a rotating shaft 55, a first motor 53 is arranged on the side surface of the fixed platform 52, the first motor 53 is connected with the rotating shaft 55 through a gear set, a fourth air cylinder 57 is arranged in the cantilever 54, the fourth air cylinder 57 is connected with the balance block 56 through a fourth piston rod 58, a second motor 59 is arranged on the top surface of the balance block 56, a sleeve 60 is arranged on the bottom surface of the balance block 56, the second motor 59 is connected with a drill, the base 48 can move horizontally along the slide rail 49, and further drives the cantilever 54 to move along the conveying direction of the circuit board 7, so as to increase the working range of the drilling mechanism 5, the third cylinder 50 can drive the fixing table 52 to move up and down through the third piston rod 51, so as to realize the height adjustment of the cantilever 54, further adjust the height position of the drill bit, meet the drilling processing of the circuit boards 7 with different thicknesses, the first motor 53 can drive the rotating shaft 55 to rotate through the gear set, and then the drill bit is driven to rotate horizontally by the cantilever 54, the position of the drill bit is adjusted, the fourth cylinder 57 can drive the balance weight 56 to move horizontally by the fourth piston rod 58, and then drive the drill bit along the vertical direction removal of circuit board 7 moving direction, improve the work flexibility of drill bit, second motor 59 can drive the drill bit continuous rotation through pivot 61, realizes the drilling processing to circuit board 7, and sleeve 60 has improved the stability when pivot 61 is rotatory. Through the design of feeding conveying mechanism 2, can carry circuit board 7 to the clamping mechanism 4 of drilling platform 1 on, through 4 clamping location backs of clamping mechanisms, the rethread drilling mechanism 5 is drilled hole in succession to circuit board 7, and circuit board 7 after the drilling is carried to next station through ejection of compact conveying mechanism 3, not only can realize going up the unloading in the automation of circuit board 7, can improve the precision and the efficiency of drilling moreover, reduces manual operation's intensity of labour.

The drilling method using the drilling device for the circuit board comprises the following steps:

1) the clamping mechanism 4 is installed

a. Firstly, manufacturing a corresponding drilling platform 1 according to design requirements, horizontally placing and fixing the drilling platform 1, polishing the top surface of the drilling platform 1, selecting a proper substrate 29, and fixedly installing the substrate 29 on the top surface of the drilling platform 1 through a support bar 30, so that the stability and reliability of installation of the substrate 29 are improved, and the phenomenon that the final drilling processing of the circuit board 7 is inclined due to inclination of the substrate 29 to influence the drilling precision is prevented;

b. then selecting two driving rollers 38 with matched sizes according to design requirements, installing the driving rollers 38 at set positions on the top surface of the substrate 29 through a support 39, installing a boosting motor at one side of the driving rollers 38, symmetrically installing first guide rods 33 along the top surface of the substrate 29 according to the design requirements, wherein the distribution positions of the first guide rods 33 are parallel to the moving direction of the circuit board 7, the installation stability of the driving rollers 38 can be improved through the support 39, the driving rollers 38 can be driven by the boosting motor to rotate stably, and the stability of the lifting plate 32 in the up-and-down moving process can be improved through the first guide rods 33;

c. after the push plate assembly 37 is installed, the lifting plate 32 with a proper size is selected, two through grooves 36 are formed in the lifting plate 32 according to the position of the driving roller 38, the size of each through groove 36 is larger than that of the driving roller 38, through holes are formed in the lifting plate 32 according to the position of the first guide rod 33 and matched with the first guide rod 33, meanwhile, the first limiting plates 34 are symmetrically installed along the top surface of the lifting plate 32 according to the size of the circuit board 7, when the lifting plate 32 moves to the bottom end, the driving roller 38 can be exposed on the top surface of the lifting plate 32, horizontal boosting of the circuit board 7 is achieved, meanwhile, collision between the first limiting plate 34 and the second limiting plate 46 and the circuit board 7 can be avoided, when the circuit board 7 needs to be drilled, the lifting plate 32 is located above the driving roller 38, and collision between a drill bit and the driving roller 38 is avoided;

d. then, according to design requirements, clamping assemblies 35 are symmetrically installed on two sides of the lifting plate 32, first, second air cylinders 43 are symmetrically installed along the bottom surface of the lifting plate 32, second piston rods 44 are installed on the second air cylinders 43, then, second guide rods 45 are horizontally installed along the side surface of the lifting plate 32, then, a horizontal moving plate 42 with a proper size is selected, the horizontal moving plate 42 is sleeved on the second guide rods 45, meanwhile, the bottom surface of the horizontal moving plate 42 is connected with the second piston rods 44 through connecting rods, then, second limiting blocks with corresponding sizes are processed, the second limiting blocks are fixedly connected to the top surface of the horizontal moving plate 42, clamping and supporting of the circuit board 7 can be achieved through the clamping assemblies 35, and stability and reliability of the circuit board 7 during drilling are improved;

e. finally, two first air cylinders 40 are installed in the center of the top surface of the substrate 29, first piston rods 41 are connected to the first air cylinders 40, the processed lifting plate 32 is horizontally placed, the first guide rods 33 vertically penetrate through the lifting plate 32, meanwhile, the top ends of the first piston rods 41 are fixedly connected to the bottom surface of the lifting plate 32, the first air cylinders 40 drive the first piston rods 41 to move up and down, and then the lifting plate 32 can be driven to stably move up and down;

the mounting steps of the clamping mechanism 4 are simple, the collision of the push plate assembly 37, the lifting assembly and the clamping assembly 35 during mounting can be avoided, the size of each mounting step can be adjusted conveniently, the requirement of actual processing is met, and the stability and the reliability of the circuit board 7 during drilling are improved.

2) Drilling mechanism 5 mounting

a. Firstly, a base 48 and a fixed platform 52 are machined according to design requirements, the base 48 is connected to a sliding rail 49, two third air cylinders 50 are symmetrically arranged along the top surface of the base 48, the fixed platform 52 is connected with the third air cylinders 50 through third piston rods 51, a rotating shaft 55 is vertically arranged along the top surface of the fixed platform 52, the bottom end of the rotating shaft 55 is connected to the inside of the fixed platform 52, meanwhile, a first motor 53 is arranged on one side of the fixed platform 52, the first motor 53 is connected with the rotating shaft 55 through a gear set, the fixed platform 52 can be driven to move up and down along the base 48 through the third air cylinders 50 and the third piston rods 51, the height positions of a cantilever 54 and a drill bit are adjusted, the rotating shaft 55 is driven by the first motor 53 through the gear set to rotate, and the angle;

b. then, a corresponding cantilever 54 and a corresponding balance block 56 are processed, the cantilever 54 is fixedly connected to the top end of the rotating shaft 55, a fourth air cylinder 57 is horizontally arranged along the inside of the cantilever 54, the fourth air cylinder 57 is connected with the balance block 56 through a fourth piston rod 58, the balance block 56 can be driven to horizontally move through the fourth air cylinder 57 and the fourth piston rod 58, and the position of the balance block 56 is adjusted;

c. then selecting a proper second motor 59, fixedly installing the second motor 59 on the top surface of the balance block 56, connecting a drill bit on the second motor 59 through a rotating shaft 61, enabling the rotating shaft 61 to penetrate through the balance block 56, installing a sleeve 60 on the outer side of the rotating shaft 61, enabling the sleeve 60 to be fixedly connected on the bottom surface of the balance block 56, and driving the drill bit to rotate through the rotating shaft 61 through the second motor 59 to realize the requirement of continuously drilling the circuit board 7;

the drilling mechanism 5 is simple in installation steps, the working range of the drill bit is enlarged, the drill bit can be flexibly moved according to actual needs, the precision and the efficiency of drilling the circuit board 7 are greatly improved, and automatic machining is achieved.

3) The feeding conveying mechanism 2 and the discharging conveying mechanism 3 are arranged

a. Firstly, manufacturing corresponding side plates 6 according to design requirements, uniformly arranging mounting holes 21 along the side plates 6, mounting a support plate 18 on the bottom surfaces of the side plates 6, placing the two side plates 6 in parallel, fixedly connecting the two side plates through a positioning rod 20, ensuring that the mounting holes 21 are positioned on the same horizontal line, improving the mounting precision of a first riding wheel 9 and a second riding wheel 14, enabling a circuit board 7 to realize horizontal linear movement transportation, improving the connection strength and stability between the two side plates 6 through the positioning rod 20, and preventing the side plates 6 from shaking during working;

b. then, a first mounting plate 24 and a second mounting plate 25 are respectively mounted along the outer side of the side plate 6 on one side through a first fixing rod 27 and a second fixing rod 28, the second mounting plate 25 is located above the first mounting plate 24, a proper driving motor 22 and a proper speed reducer 23 are selected, the driving motor 22 is connected to the first mounting plate 24 through the speed reducer 23, a driving wheel is mounted on an output shaft of the speed reducer 23, two driven wheels are mounted along the inner side surface of the second mounting plate 25, the driven wheels are connected with the driving wheel through a third belt 26, the mounting stability and reliability of the driving motor 22 and the speed reducer 23 are improved, meanwhile, the connection stability between the driving wheel and the driven wheels is improved, and the transmission efficiency is improved;

c. then selecting first supporting wheels 9 and second supporting wheels 14 with proper sizes, respectively and uniformly connecting the first supporting wheels 9 and the second supporting wheels 14 to the inner sides of two side plates 6 through a first connecting shaft 8 and a second connecting shaft 13, ensuring that the distance between each group of two first supporting wheels 9 or two second supporting wheels 14 is equal, respectively installing a first driving wheel 10 and a second driving wheel 15 along one end of each first connecting shaft 8 and one end of each second connecting shaft 13, enabling the first driving wheel 10 and the second driving wheel 15 to be positioned at the outer side of the side plates 6, simultaneously and uniformly installing a first pressing roller and a second pressing roller on the upper parts of the outer sides of the side plates 6, installing a first auxiliary roller and a second auxiliary roller on the lower parts of the side plates 6, respectively connecting two driven wheels with the first connecting shaft 8 and the second connecting shaft 13 on the two first driving wheels 10 and the second driving wheels 15 which are close to each other, and driving the two adjacent first connecting shafts 8 and the second connecting shafts 13 to rotate through the driven wheels, the corresponding first driving wheel 10 and the second driving wheel 15 can be driven to rotate, the first belt 11 and the second belt 16 are driven, all the first driving wheels 10 and all the second driving wheels 15 rotate, all the first riding wheels 9 and all the second riding wheels 14 can stably rotate, and the circuit board 7 can be conveyed;

d. finally, the first driving wheel 10, the first auxiliary wheel and the first compression roller are connected through a first belt 11, and the second driving wheel 15, the second auxiliary wheel and the second compression roller are connected through a second belt 16, so that the driving stability is improved;

this feeding conveying mechanism 2 is simple with ejection of compact conveying mechanism 3's installation procedure, not only can improve drive mechanism's transmission efficiency, can guarantee whole feeding conveying mechanism 2 and ejection of compact conveying mechanism 3 steady operation moreover, greatly reduced the noise when circuit board 7 carries.

4) Drilling of circuit board 7

a. Firstly, a circuit board 7 needing drilling is placed on a feeding and conveying mechanism 2, a driving assembly 19 is started, the circuit board 7 is driven to horizontally move through a transmission assembly until the circuit board is conveyed to a drilling platform 1, and the driving assembly 19 stops working;

b. then, the push plate assembly 37 is started, the circuit board 7 is moved to the horizontal position, the first air cylinder 40 is started, the lifting plate 32 is lifted to the set height, the two sides of the circuit board 7 are positioned through the first limiting plate 34, the clamping assembly 35 is started again, the other two side faces of the circuit board 7 are clamped and positioned, the first air cylinder 40 is started, the lifting plate 32 is driven by the first piston rod 41 to lift the circuit board 7 to the set height position, and the height of the lifting plate 32 is guaranteed to be higher than that of the driving roller 38;

c. then, drilling the circuit board 7 through the drilling mechanism 5, after the machining is finished, driving the lifting plate 32 and the circuit board 7 to descend to a set height through the first air cylinder 40, loosening the clamping assembly 35, and enabling the lifting plate 32 to continue to descend to the set height through the first air cylinder 40;

d. and finally, starting the push plate assembly 37, conveying the processed circuit board 7 to the discharge conveying mechanism 3, conveying the circuit board 7 to the next station through the discharge conveying mechanism 3, and then drilling the next circuit board 7.

The drilling method has simple steps, can improve the drilling efficiency and precision of the circuit board 7, and can greatly reduce the labor intensity of manual operation.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to achieve substantially the same technical effects are all covered by the scope of the present invention.

Claims (9)

1. A drilling device for a circuit board, characterized in that: including drilling platform, feeding conveying mechanism, ejection of compact conveying mechanism, clamping machine construct and drilling mechanism, feeding conveying mechanism with ejection of compact conveying mechanism is located both sides around drilling platform, clamping machine construct fixed connection be in on drilling platform's the top surface, two drilling mechanism sets up drilling platform's the left and right sides.

2. A drilling device for circuit boards according to claim 1, characterized in that: the feeding conveying mechanism and the discharging conveying mechanism respectively comprise two side plates, a transmission assembly and a driving assembly which are arranged in parallel, mounting holes are uniformly formed in the side plates, supporting plates are arranged on the bottom surfaces of the side plates respectively, the two side plates are fixedly connected through positioning rods, the transmission assembly is connected onto the side plates, the driving assembly is connected onto one side of each side plate, and the driving assembly is connected with the transmission assembly.

3. A drilling device for circuit boards according to claim 2, characterized in that: the transmission assembly comprises first supporting wheels, first transmission wheels, first belts, second supporting wheels, second transmission wheels and second belts, the first supporting wheels and the second supporting wheels are evenly distributed on the inner side surfaces of the two side plates, the first supporting wheels are connected with the side plates through first connecting shafts, the second supporting wheels are connected with the side plates through second connecting shafts, the first connecting shafts and the second connecting shafts are matched with the mounting holes, the first transmission wheels and the second transmission wheels are respectively connected with the first connecting shafts and the second connecting shafts and located on the outer sides of the side plates on one side, first auxiliary wheels and second auxiliary wheels are arranged on the side plates, the first transmission wheels are connected with the first auxiliary wheels through the first belts, and the second transmission wheels are connected with the second auxiliary wheels through the second belts, the first connecting shaft and the second connecting shaft on the first riding wheel and the second riding wheel which are close to each other are connected with the driving assembly.

4. A drilling device for circuit boards according to claim 3, characterized in that: and a first pinch roller and a second pinch roller are uniformly arranged on the outer side surface of the side plate, and the first pinch roller and the second pinch roller are abutted against the first belt and the second belt.

5. A drilling device for circuit boards according to claim 3, characterized in that: drive assembly includes driving motor, reduction gear and third belt, driving motor connects the reduction gear, reduction gear fixed connection is on first mounting panel, first mounting panel is connected through first dead lever the curb plate, the second mounting panel is connected through the second dead lever the curb plate, the second mounting panel is located the top of first mounting panel, the output shaft of reduction gear has the action wheel, is close to each other first connecting axle with all be connected with from the driving wheel on the second connecting axle, the action wheel with pass through from between the driving wheel the third belt is connected.

6. A drilling device for circuit boards according to claim 1, characterized in that: clamping mechanism includes base plate, lifter plate, clamping subassembly and push pedal subassembly, the base plate passes through support bar fixed connection and is in on drilling platform's the top surface, the lifter plate passes through the lifter subassembly and removes to be connected the top of base plate, the top surface bilateral symmetry of lifter plate is provided with first limiting plate, two other side symmetries of lifter plate are provided with the clamping subassembly, the push pedal subassembly is connected on the top surface of base plate, and be located the lifter plate with between the base plate, the push pedal subassembly includes the drive roller, the drive roller passes through the leg joint the base plate, one side of drive roller is provided with the boosting motor, be provided with logical groove on the lifter plate, the size that leads to the groove is greater than the size of drive roller.

7. A drilling device for circuit boards according to claim 6, characterized in that: the lifting assembly comprises a first air cylinder, a first piston rod and a first guide rod, the first air cylinder is fixedly connected to the center of the top surface of the base plate, the first air cylinder is connected with the lifting plate through the first piston rod, the first guide rod is symmetrically arranged on two sides of the top surface of the base plate, and the first guide rod penetrates through the lifting plate.

8. A drilling device for circuit boards according to claim 6, characterized in that: the clamping assembly comprises a second limiting plate, a horizontal moving plate and a second cylinder, the second limiting plate is fixedly connected to the top surface of the horizontal moving plate, a positioning block is arranged on the inner side face of the second limiting plate, the second limiting plate is movably connected to the lifting plate through a second guide rod, the second cylinder is fixedly connected to the bottom surface of the lifting plate, a second piston rod is connected to the second cylinder, and the second piston rod is connected to the horizontal moving plate through a connecting rod.

9. A drilling device for circuit boards according to claim 1, characterized in that: drilling mechanism includes base, fixed station, cantilever and balancing piece, base moving connection is on the slide rail, the symmetry is provided with the third cylinder on the top surface of base, the third cylinder passes through the third piston rod and connects the fixed station, the fixed station is located the top of base, the cantilever passes through the axis of rotation and rotates to be connected the top of fixed station, be provided with first motor on the side of fixed station, first motor passes through the gear train and connects the axis of rotation, be provided with the fourth cylinder in the cantilever, the fourth cylinder passes through the fourth piston rod and connects the balancing piece, be provided with the second motor on the top surface of balancing piece, be provided with the sleeve on the bottom surface of balancing piece, the second motor is connected with the drill bit through the pivot, the sleeve is located the outside of pivot.

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