CN115673721A - Automatic assembling equipment for writing board - Google Patents

Abstract

The invention discloses automatic assembly equipment for a writing board, which comprises a rack, a blanking mechanism, a feeding mechanism, a switch mounting mechanism, a switch righting mechanism, a circuit board breaking mechanism, a circuit board transferring mechanism, a screw striking mechanism and a cleaning mechanism, wherein the switch mounting mechanism is used for transferring a switch from a conveying channel to the writing board, the switch righting mechanism is used for pulling the switch to one side of the writing board, the circuit board breaking mechanism is used for breaking a whole sheet circuit board into single circuit boards, the circuit board transferring mechanism is used for transferring the single circuit boards to the writing board, the screw striking mechanism is used for mounting screws to the circuit boards, and the cleaning mechanism is used for cleaning.

Description

A writing board automatic assembly equipment

technical field

The invention relates to the field of writing board assembly equipment, in particular to an automatic writing board assembly equipment.

Background technique

The composition of the touch screen tablet includes the bottom frame of the tablet and the display screen installed in the frame. This device is mainly aimed at the installation process of the bottom frame of the tablet. Buttons and circuit boards need to be installed on the bottom frame of the tablet. Finally, screws are used to fix the circuit board. Traditional assembly line production is mainly manual processing. The above steps require at least two people to work in groups. Due to the limitation of manual processing time and the consideration of reducing processing costs, how to Replacing manual assembly and processing by automated equipment is an urgent problem to be solved by those skilled in the art.

Contents of the invention

In order to solve the above problems, the present invention proposes an automatic tablet assembly device.

The technical solution adopted in the present invention is: a writing board automatic assembly equipment, comprising

A frame, two parallel slide rail bars are arranged on the top of the frame, and a chute is provided on the slide rail bars;

The unloading mechanism is arranged at the front end of the slide rail bar, and is used to place the writing board, and the bottom of the unloading mechanism communicates with the chute;

The feeding mechanism is arranged between the slide rails and is used to drive the writing board to advance;

The switch feeding mechanism includes a vibrating plate, and a conveying path is connected to the vibrating plate;

A switch mounting mechanism, fixed on the frame, includes movable jaws for transferring the switch from the conveying path to the writing board;

The switch positive position mechanism is fixed on the slide rail and is used to pull the switch to one side of the writing board;

The circuit board breaking mechanism is fixed on the frame and is used to break the entire sheet circuit board into a single circuit board;

The circuit board transfer mechanism is located above the circuit board breaking mechanism and is used to transfer a single circuit board to the writing board;

Screw driving mechanism, used to install screws to the circuit board;

The dust-cleaning mechanism is arranged at the tail end of the slide rail, and is used for cleaning sundries on the surface of the writing board.

Further, the feeding mechanism includes a drive module, a control box is slidably connected to the drive module, a control motor is provided on the side of the control box, and a control motor is slidably connected to the bottom surface of the control box. There is a sliding plate, a rack is fixed on the sliding sheet, a number of rotating shafts are rotatably connected to the control box, and a number of moving claws and gears are fixed on the rotating shaft, and the gears mesh with the rack.

Further, the switch installation mechanism includes a bottom plate fixed on the frame, a vertical movement seat is slidably connected to the bottom plate, a transverse movement seat is slidably connected to the vertical movement seat, and the jaws are slidably connected to on the traverse seat.

Further, the switch normal position mechanism includes a normal position fixed seat, a normal position moving seat, and an arc-shaped pressing piece, the normal position moving seat is slidably connected to the slide rail, and the normal position fixed seat is connected to A positive air cylinder is connected between the normal moving seats, and a compression cylinder is fixed on one side of the normal moving seats, and a rotating block is rotatably connected to the normal moving seats, and the end of the arc-shaped pressing piece The part is rotatably connected with the pressing cylinder, and the middle part of the arc-shaped pressing piece is rotatably connected with the rotating block.

Further, the circuit board breaking mechanism includes a hemming fixing seat, a sliding fixing table is provided on the bottom surface of the hemming fixing seat, a chute is provided on the sliding fixing table, and a folding chute is slidably connected in the chute. A side rack, a hemming drive cylinder is provided between the hemming fixing seat and the hemming rack, a guide boss is provided on one side of the sliding fixed table, and a guide boss is provided on the side of the guide boss The arc-shaped guide columns are arranged on the hemming rack, and the arc-shaped hemming block is engaged with the arc-shaped breaking block. The arc-shaped guide groove is arranged in the arc-shaped breaking block, and the guide column is located in the arc-shaped guide groove.

Further, the circuit board transfer mechanism includes two transfer fixing seats, a placement cavity is formed between the moving fixing seats, the folding fixing seat is fixed in the placement cavity, and corresponding Two conveyor belts at intervals, the arc-shaped hemming block is arranged between the two conveyor belts, a push bar is provided on one of the mobile fixing seats, and a circuit board transfer guide rail is fixed on the other mobile seat, so A circuit board lifting cylinder is slidably connected to the circuit board transfer guide rail, and an adsorption claw is provided at the end of the circuit board lifting cylinder.

Further, the screw driving mechanism includes a main support plate, a traverse block is slidably connected to the top of the main support plate, a secondary support plate is fixed on the traverse block, and a driving motor is slidably connected to the secondary support plate , a stroke adjustment cylinder is fixed on the secondary support plate, a spring guide shaft is fixed at the end of the adjustment cylinder, a spring guide sleeve is slidably connected to the outside of the spring guide shaft, and a spring guide sleeve is sleeved with a A motor connection block, the drive motor is fixedly connected to the motor connection block, springs are respectively provided on the spring guide shaft and the spring guide sleeve, and a vacuum suction head with a middle hole is slidably connected to the secondary support plate , the vacuum suction head is fixedly connected with the spring guide sleeve, the driving motor is connected with a screwdriver, and the screwdriver is located in the middle hole.

Further, there are standing plates on both sides of the slide rail bar, the dust cleaning mechanism includes a dust suction bellows, a cleaning moving rail is arranged on the top of the standing plate, and the dust suction bellows is slidably connected to the cleaning moving On the rail, the dust suction air box is connected with a dust discharge pipe.

Compared with the prior art, the present invention has the following beneficial effects:

The invention realizes the upper switch of the writing board and the assembly of the circuit board through the switch installation mechanism, the switch normal position mechanism, the circuit board breaking mechanism, the circuit board transfer mechanism, and the screw mechanism, and the auxiliary feeding mechanism and the feeding mechanism realize the whole machine. The production cycle process replaces the traditional manual production method with automated equipment, which improves the continuous production time, solves the problem of manual fatigue, reduces production costs through automated equipment, and realizes the intelligent production of tablet assembly.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is the structural representation of complete machine 1 of the present invention;

Fig. 2 is the structural representation of complete machine 2 of the present invention;

Fig. 3 is the schematic diagram of enlarged structure of part A of the present invention;

Fig. 4 is a schematic diagram of a switch installation structure of the present invention;

Fig. 5 is a schematic diagram of the positive position structure of the switch of the present invention;

Fig. 6 is a structural schematic diagram of the driving module of the present invention;

Fig. 7 is a structural schematic diagram of the circuit board transfer mechanism of the present invention;

Fig. 8 is a schematic view of the structure of the circuit board transfer mechanism of the present invention;

Fig. 9 is a structural schematic diagram of the circuit board breaking mechanism of the present invention;

Fig. 10 is a structural schematic diagram of the screw driving mechanism of the present invention;

Fig. 11 is a structural schematic diagram of the cleaning mechanism of the present invention;

The invention label information is as follows:

10. Rack; 11. Slide rail bar; 12. Chute; 20. Unloading mechanism; 30. Feeding mechanism; 31. Drive module; 32. Control box; 321. Control motor; 322. Sliding plate; 323, rack; 324, rotating shaft; 325, moving claw; 326, gear; 41, switch feeding mechanism; 42, switch installation mechanism; 421, bottom plate; 422, vertical shift seat; 423, transverse shift seat; 424 , jaws; 43, switch upright mechanism; 431, upright fixed seat; 432, upright moving seat; 433, arc-shaped pressing sheet; 434, upright cylinder; 435, pressing cylinder; 436, rotating block; 51. Circuit board breaking mechanism; 511. Hemming fixed seat; 512. Sliding fixed table; 513. Chute; 514. Hemming rack; 515. Hemming drive cylinder; 516. Guide boss; 517. Guide column; 518, curved hemming block; 519, curved guide groove; 52, circuit board transfer mechanism; 521, transfer fixed seat; 522, placement cavity; 523, conveyor belt; 524, push bar; 525, circuit board transfer guide rail; 526, circuit board lifting cylinder; 527, adsorption claw; 60, screw mechanism; 61, main support plate; 62, traverse block; 63, secondary support plate; 631, stroke adjustment cylinder; 632, spring guide shaft; Spring guide sleeve; 64, drive motor; 641, motor connection block; 642, screwdriver; 65, spring; 66, vacuum suction head; 661, middle hole; 70, dust cleaning mechanism; 71, stand plate; 72, dust suction Bellows; 73, cleaning moving rail; 74, dust discharge pipe;

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

In addition, the descriptions involving "first", "second" and so on in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

The present invention provides a writing board automatic assembly equipment, comprising a frame 10, two parallel slide rail bars 11 are arranged on the top of the frame 10, and the slide rail bars 11 are overhead through several hemming blocks, Described slide rail bar 11 is provided with chute 513, and described chute 513 is oppositely arranged, and described chute 513 is used for placing writing board, limits the moving direction of writing board by described chute 513, as shown in Figure 1 , the chute 513 is only connected to one side of the slide rail bar 11, and the writing board flows out of the device from the conductive side; the front end of the slide rail bar 11 is provided with a blanking mechanism 20, and the lower The feeding mechanism 20 is surrounded by several straight strips, a raw material chamber is formed in the middle, and the writing board is placed in the raw material chamber, and the bottom of the feeding mechanism 20 is connected to the chute 513, so that the writing board can be used continuously from the raw material cavity into the chute 513, so as to facilitate the subsequent transfer; between the slide rail bars 11, a feeding mechanism 30 is provided, and the feeding mechanism 30 is used to drive the writing board to advance; on the switch The material mechanism 41 includes a vibrating plate, which is connected with a conveying path, and the switch elements arranged by the vibrating plate are output through the conveying path; the switch installation mechanism 42 is fixed on the frame 10, including a movable The clamping claw 424, the clamping claw 424 is located above the conveying path, and the switch is transferred from the conveying path to the writing board through the clamping; since the position of the switch after being placed in the slot of the writing board is not fixed, For the convenience of subsequent processing, a switch normal position mechanism 43 is also provided in this equipment, and the switch normal position mechanism 43 is fixed on the slide rail bar 11, and the switch is pulled to the side of the writing board through the switch normal position mechanism 43. One side, referring to the figure, we can see that the switch in this device is pulled to the left side of the writing board; the circuit board is in a whole piece when it leaves the factory, and the whole piece of circuit board needs to be broken before installation to form a single circuit board, so this equipment is provided with a circuit board breaking mechanism 51, which is fixed on the frame 10; above the circuit board breaking mechanism 51 is provided with a circuit board transfer mechanism 52, through which the circuit board transfer mechanism 52 to transfer a single circuit board to the writing board; at the same time, the device also includes a screw mechanism 60, which is used to install screws on the circuit board, and fix the circuit board and the writing board through the screws; finally, the tail of the slide rail bar 11 The end is provided with a cleaning mechanism 70, which is used to clean the sundries on the surface of the writing board;

The specific operation process of this equipment is as follows: the writing board is first placed in the feeding mechanism 20, and the writing board is continuously moved to the subsequent station through the feeding mechanism 30. The first step is to install the switch on the writing board , and positively position the switch to ensure that the switch is located at the far left side of the slot in the writing board, then break the circuit board into pieces and transfer them to the writing board, and then use the screw mechanism 60 to punch on the circuit board The screw is operated, and the writing board after screwing is advanced to the below of the dust-cleaning mechanism 70, and the dust and other sundries on the surface of the writing board are cleared by the dust-cleaning mechanism 70.

Described feeding mechanism 30 comprises drive module 31, and described drive module 31 is shown in Figure 6, and it comprises shell, the motor that is fixed on the shell, the screw mandrel that is connected with motor output shaft, the screw mandrel that is sleeved on the screw mandrel. Screw nut, the drive module 31 is slidably connected with a control box 32, the sliding of the control box 32 is driven by the screw nut, in order to play the effect of driving the writing board to move, the control box 32 A control motor 321 is provided on the side of the control box body 32, a sliding plate 322 is slidably connected to the bottom surface of the control box body 32, a rack 323 is fixed on the sliding plate, and a plurality of rotating shafts 324 are rotatably connected on the control box body 32 , a number of moving claws 325 and gears 326 are fixed on the rotating shaft 324, and the gears 326 mesh with the rack 323. When the control motor 321 drives the rack 323 to move, the rack 323 drives the gear 326 to rotate, and the gear 326 drives the rotating shaft 324 to rotate, so as to control the rotation of the moving claw 325. As shown in Figure 3, the rotating process of the moving claw 325 can be Transition is performed at a state higher or lower than the chute 513, so as to realize the effect that the moving claw 325 drives the writing board to move, and the reciprocating motion of the control box 32 can be controlled by the driving module 31 , so as to achieve the effect of continuously pushing the tablet forward.

The switch installation mechanism 42 in this device includes a bottom plate 421 fixed on the frame 10, and a vertical movement seat 422 is slidably connected to the bottom plate 421, and the vertical movement seat 422 can be preset along the bottom plate 421. The guide rail moves up and down, the vertical movement seat 422 is slidably connected with a traversing seat 423, the traversing seat 423 is elongated, and the clamping jaw 424 is slidably connected with the traversing seat 423, the The gripper 424 first grabs the switch from the conveying path, raises the gripper 424 through the vertical movement seat 422, and then moves the gripper 424 to the top of the writing board through the traverse movement seat 423, Then control the vertical movement seat 422 to lower the jaw 424, thereby placing the switch in the writing board.

In order to achieve the positive position effect on the switch, so that the switch can be located on the leftmost side of the slot of the writing board, so as to facilitate subsequent processing, the specific switch normal position mechanism 43 in this device includes a normal position fixing seat 431, a normal position movement Seat 432 and arc-shaped pressing piece 433, as shown in Figure 5, the positive fixed seat 431 is fixed on the slide rail bar 11, and the positive position mobile seat 432 is slidably connected to the slide rail bar 11 , the positive position cylinder 434 is connected between the normal position fixed seat 431 and the normal position moving seat 432, and the normal position moving seat 432 is pulled by the normal position cylinder 434 to slide, and the normal position moving seat 432 A compression cylinder 435 is fixed on one side of the arc compression piece 433, and the end of the arc compression piece 433 is rotatably connected with the compression cylinder 435. In order to increase the degree of freedom of the arc compression piece 433, the positive position movement The seat 432 is rotatably connected with a rotating block 436, and the middle part of the arc-shaped pressing piece 433 is rotatably connected with the rotating block 436. When the pressing cylinder 435 is pushed upward, the rotating block 436 is used as the center of rotation. The free end of the arc-shaped pressing piece 433 moves downward, so that the end of the arc-shaped pressing piece 433 is in contact with the switch, and after pressing, the entire arc-shaped pressing piece 433 is pulled by the positive cylinder 434 Move to one side, thereby pulling the switch to move to one side, and realize the positive position effect on the switch.

In order to disassemble the circuit board of the whole board, the circuit board breaking mechanism 51 of the circuit board is provided in this equipment, which specifically includes a hemming fixing seat 511, and a sliding fixing platform is provided on the bottom surface of the hemming fixing seat 511 512, the sliding fixed table 512 is provided with a chute 513, the hemming rack 514323 is slidably connected in the chute 513, and the hemming fixing seat 511 and the hemming rack 514323 are provided with a folding Edge driving cylinder 515, the hemming driving cylinder 515 controls the sliding of the hemming rack 514323, as shown in Figure 9, the hemming fixing seat 511 is also provided with a stand, the hemming driving cylinder 515 The end of the rotatably connected to the stand, so that the folding drive cylinder 515 and the chute 513 are on the same level as possible, and one side of the sliding fixed table 512 is provided with a guide boss 516, the guide A plurality of guide columns 517 are provided on the side of the boss 516, as shown in Figure 9, the guide columns 517 are arranged in an arc, and the arc-shaped hemming blocks 518 are engaged on the hemming rack 514323, and the arc-shaped hemming blocks 518 are engaged with each other. An arc-shaped guide groove 519 is arranged in the breaking block, and the guide column 517 is located in the arc-shaped guide groove 519. The arc-shaped breaking block can rotate along the guide column 517 and pass through the hemming rack. The engagement of 514323 provides the driving force to break the circuit board from the whole piece when the end of the arc break block is lifted up, so it is best to be above the end of the break action of the arc break block A blocking piece is provided to better cooperate with the arc-shaped breaking block for breaking operation.

The circuit board needs to be transported before and after it is disassembled, so the circuit board transfer mechanism 52 includes two transfer fixing seats 521, a placement cavity 522 is formed between the two moving fixing seats, and the hemming fixing seat 511 Fixed in the placement cavity 522, two conveyor belts 523 spaced apart are provided between the movable and fixed seats, and the conveyor belts 523 are used to transfer circuit boards, and the two conveyor belts 523 are independent entities, and the two conveyor belts 523 are independent. There is a gap between them, the arc-shaped hemming block 518 is set between the two conveyor belts 523, and a push bar 524 is arranged on one of the mobile fixing seats, as shown in Figure 1, the push bar 524 is externally connected There is a cylinder through which the broken circuit board is pushed to move, and a circuit board transfer guide rail 525 is fixed on the other moving seat, and a circuit board lifting cylinder 526 is slidably connected to the circuit board transfer guide rail 525. The end of the circuit board lifting cylinder 526 is provided with an adsorption claw 527, the up and down movement of the adsorption claw 527 is controlled by the circuit board lifting cylinder 526, and the circuit board lifting cylinder 526 is moved along the circuit board after grabbing the circuit board. The guide rail 525 moves, and referring to the figure, it can be seen that the conveyor belt 523 where the circuit board is located after the break is provided with a bump with a groove, and the circuit board after the break enters into the groove to play a position-limiting role, and the conveyor belt 523 During operation, the circuit board is always located on one side of the groove, which is convenient for the adsorption claw 527 to absorb.

Considering that the circuit board is thin and easily damaged during the screwing process, a screwing mechanism 60 with elastic buffer performance is provided in this device, and the screwing mechanism 60 includes a main support plate 61, and the main support plate 61 is fixed on the frame 10, the top of the main support plate 61 is slidably connected with a traversing block 62, a guide rail can be set under the traversing block 62 to assist in sliding, and the traversing block 62 is fixed with a A support plate 63, a drive motor 64 is slidably connected to the secondary support plate 63, a stroke adjustment cylinder 631 is fixed on the secondary support plate 63, and a spring 65 guide shaft 632 is fixed at the end of the adjustment cylinder. The spring 65 guide shaft 632 is slidingly connected with a spring 65 guide sleeve 633, and the spring 65 guide shaft 632 can slide along the spring 65 guide sleeve 633, while ensuring that the spring 65 guide shaft 632 will not break away from the spring 65 Guide sleeve 633, therefore the end of described spring 65 guide sleeve 633 is provided with annular fixed sleeve, and described spring 65 guide sleeve 633 is provided with motor connection block 641, and described driving motor 64 is connected with described motor The block 641 is fixedly connected, the spring 65 guide shaft 632 and the spring 65 guide sleeve 633 are respectively provided with a spring 65, and a vacuum suction head 66 with a middle hole 661 is slidably connected to the secondary support plate 63. The suction head 66 is externally connected with equipment for automatically supplying screws, and the screws prepared by the external equipment enter into the middle hole 661 of the vacuum suction head 66, and the vacuum suction head 66 is fixedly connected with the guide sleeve 633 of the spring 65, Preferably, the fixed position is arranged at the lower end of the guide sleeve 633 of the spring 65, and the drive motor 64 is connected with a screwdriver 642, and the screwdriver 642 is located in the middle hole 661. The shape of the screwdriver 642 is similar to that of the traditional The screwdriver is the same, and it is mainly used for screwing the screw of the middle hole 661. For convenience of description, the spring 65 on the guide shaft 632 of the spring 65 and the guide sleeve 633 of the spring 65 are called the first spring 65 and the second spring respectively. 65. When the device is in operation, the stroke adjustment cylinder 631 is pushed downwards. At this time, the first spring 65 is compressed to push the motor connection block 641 down synchronously, and then the second spring 65 pushes the vacuum The suction head 66 descends, the first spring 65 is used to absorb the initial tremor of the stroke adjustment cylinder 631, the bottom of the secondary support plate 63 is provided with a stopper, and the vacuum suction head 66 moves downward until it meets the stopper. The blocks stop falling after abutting against each other. At this time, there is a certain distance between the outlet of the vacuum suction head 66 and the circuit board, and then the stroke adjustment cylinder 631 continues to push down. At this time, the first and second springs 65 Continue to compress, the motor connection block 641 and the driving motor 64 also descend synchronously, the screwdriver 642 goes into the middle hole 661 until it contacts the screw, and then pushes the screw to the circuit through the screwdriver 642 board, and then screw the circuit board, the device gradually absorbs the vibration during operation through the first and second springs 65, from And avoid that described screwdriver 642 descends too fast to produce damage to circuit board in screwing process.

The two sides of described slide rail bar 11 are provided with stand plate 71, and the top of described stand plate 71 is higher than described slide rail bar 11, and described ash cleaning mechanism 70 comprises ash suction bellows 72, and the top of described stand plate 71 There is a cleaning moving rail 73, the dust suction bellows 72 is slidably connected to the cleaning moving rails 73, the dust suction bellows 72 is connected with a dust discharge pipe 74, and the dust suction bellows 72 can move along the cleaning The rail 73 moves, thereby absorbing the dust or other sundries remaining on the surface of the writing board during the processing, and the installation of the outer frame of the writing board is completed after the cleaning is completed.

The above is only a preferred embodiment of the present invention, and does not therefore limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or direct/indirect use All other relevant technical fields are included in the patent protection scope of the present invention.

Claims (8)

1. A writing board automatic assembly equipment, characterized in that: comprising A frame, two parallel slide rail bars are arranged on the top of the frame, and a chute is provided on the slide rail bars; The unloading mechanism is arranged at the front end of the slide rail bar, and is used to place the writing board, and the bottom of the unloading mechanism communicates with the chute; The feeding mechanism is arranged between the slide rails and is used to drive the writing board to advance; The switch feeding mechanism includes a vibrating plate, and a conveying path is connected to the vibrating plate; A switch mounting mechanism, fixed on the frame, includes movable jaws for transferring the switch from the conveying path to the writing board; The switch positive position mechanism is fixed on the slide rail and is used to pull the switch to one side of the writing board; The circuit board breaking mechanism is fixed on the frame and is used to break the entire sheet circuit board into a single circuit board; The circuit board transfer mechanism is located above the circuit board breaking mechanism and is used to transfer a single circuit board to the writing board; Screw driving mechanism, used to install screws to the circuit board; The dust-cleaning mechanism is arranged at the tail end of the slide rail, and is used for cleaning sundries on the surface of the writing board. 2. A writing board automatic assembly device according to claim 1, characterized in that: the feeding mechanism includes a drive module, a control box is slidably connected to the drive module, and the control box is A control motor is provided on the side, a slide plate is slidably connected to the bottom surface of the control box, a rack is fixed on the slide plate, and a number of rotating shafts are connected to the control box in rotation, and the rotating shaft is fixed There are several moving claws and gears, and the gears are meshed with the racks. 3. A writing board automatic assembly device according to claim 2, characterized in that: said switch installation mechanism includes a base plate fixed on said frame, said base plate is slidably connected with a vertical shift seat, said A transverse movement seat is slidably connected to the vertical movement seat, and the jaws are slidably connected to the transverse movement seat. 4. A writing board automatic assembly device according to claim 3, characterized in that: the switch normal position mechanism includes a normal position fixed seat, a normal position moving seat, and an arc-shaped pressing piece, and the normal position moving seat Slidingly connected to the slide rail bar, a positive cylinder is connected between the normal fixed seat and the normal mobile seat, and a compression cylinder is fixed on one side of the normal mobile seat. A rotating block is rotatably connected to the moving seat, the end of the arc-shaped pressing piece is rotatably connected to the pressing cylinder, and the middle part of the arc-shaped pressing piece is rotatably connected to the rotating block. 5. A writing board automatic assembly device according to claim 4, characterized in that: said circuit board breaking mechanism comprises a hemming fixing seat, and a sliding fixing platform is provided on the bottom surface of said hemming fixing seat, said The sliding fixed table is provided with a chute, and a hemming rack is slidably connected in the chute, and a hemming driving cylinder is arranged between the hemming fixing seat and the hemming rack, and the hemming driving cylinder of the sliding fixing table is One side is provided with a guide boss, the side of the guide boss is provided with arc-shaped guide columns, the arc-shaped hemming block is engaged on the hemming rack, and an arc-shaped hemming block is arranged inside the arc-shaped breaking block. shaped guide groove, and the guide column is located in the arc guide groove. 6. A writing board automatic assembly device according to claim 5, characterized in that: the circuit board transfer mechanism includes two transfer fixing seats, a placement cavity is formed between the moving fixing seats, and the folded edge is fixed The seat is fixed in the placement cavity, two conveyor belts spaced apart are arranged between the movable and fixed seats, the arc-shaped hemming block is arranged between the two conveyor belts, and one of the movable and fixed seats is provided with A push bar, a circuit board transfer guide rail is fixed on the other mobile seat, a circuit board lifting cylinder is slidably connected to the circuit board transfer guide rail, and an adsorption claw is provided at the end of the circuit board lifting cylinder. 7. A writing board automatic assembly device according to claim 6, characterized in that: the screw driving mechanism comprises a main support plate, the top of the main support plate is slidably connected with a traversing block, and the traversing block A secondary support plate is fixed on the top, a drive motor is slidably connected to the secondary support plate, a stroke adjustment cylinder is fixed on the secondary support plate, a spring guide shaft is fixed at the end of the adjustment cylinder, and the spring guide shaft The outer slide is connected with a spring guide sleeve, the spring guide sleeve is provided with a motor connection block, the driving motor is fixedly connected with the motor connection block, and the spring guide shaft and the spring guide sleeve are respectively provided with A spring, a vacuum suction head with a middle hole is slidably connected to the secondary support plate, the vacuum suction head is fixedly connected to the spring guide sleeve, a screwdriver is connected to the driving motor, and the screwdriver is located on the in the middle hole. 8. A writing board automatic assembly device according to claim 7, characterized in that: the two sides of the slide rail are provided with stand boards, the dust cleaning mechanism includes a dust suction bellows, and the top of the stand board A cleaning moving rail is provided, and the dust suction bellows is slidably connected to the cleaning moving rails, and a dust discharge pipe is connected to the dust suction bellows.

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