Production device and production process of circuit board

Abstract

The invention relates to a production device of a circuit board. The production device comprises a support; the paint spraying assemblies are used for spraying paint on the board surface of the circuit board, the number of the paint spraying assemblies is two, and the two paint spraying assemblies are arranged in a spaced mode and erected on the support; the transfer assembly is connected with the bracket so as to transfer the circuit board; the drying assembly is erected on the transfer assembly so as to dry the circuit board subjected to paint spraying; the turnover assembly is connected with the transfer assembly and used for turning over the circuit board, the turnover assembly is located between the two paint spraying assemblies, and the turnover assembly comprises a clamping frame which is connected with the transfer assembly and used for clamping the circuit board; the overturning gear is connected with the clamping frame; and the overturning rack is fixedly connected with the bracket and can be meshed with the overturning gear. The production process comprises the following steps: surface treatment: coating a layer of anti-oxidation paint on the circuit board and drying; according to the overturning assembly, the purposes of facilitating paint spraying of the circuit board and improving the paint spraying efficiency of the circuit board are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of circuit board production, and in particular to a circuit board production device and a production process thereof. Background Art

[0002] A circuit board is also called a printed circuit board. It provides a physical mounting platform for electronic components. Electronic components can be fixed on the circuit board by welding, plugging, etc., so that the position of the components inside the device is relatively stable.

[0003] When the circuit board is used in a humid environment, it is easy to get damp. Moisture will reduce the performance of the circuit board's substrate material, thus affecting the normal operation of electronic components. Spraying paint on the circuit board surface is a common circuit board protection measure.

[0004] In the related technology, a Chinese patent with patent announcement number CN107214026A proposes a computer circuit board painting device, including a base, a box body is fixedly connected to the top of the base, a transmission device is fixedly connected to the top of the box body cavity, a support rod is passed through the bottom of the transmission device, a spray head is fixedly connected to the bottom end of the support rod, a first motor is fixedly connected to one side of the bottom of the box body cavity, the output shaft of the first motor is fixedly connected to a threaded rod through a coupling, and the other end of the threaded rod is rotatably connected to one side of the box body cavity, which relates to the field of computer technology. The computer circuit board painting device solves the problem of poor environment when painting traditional computer circuit boards and ensures the health of the staff.

[0005] Both sides of the circuit board need to be painted. When using the above-mentioned paint spraying device, the staff needs to manually turn the circuit board over and use a clamping tool to prop up the circuit board so that the paint spraying device can paint the other side of the circuit board. However, this painting method is inconvenient to operate, resulting in low painting efficiency of the circuit board. Summary of the invention

[0006] In order to improve the painting efficiency of circuit boards, the present application provides a circuit board production device and a production process thereof.

[0007] In a first aspect, the present application provides a circuit board production device, which adopts the following technical solution: A production device for a circuit board, comprising: Bracket; A paint spraying assembly is used to spray paint on the board surface of the circuit board. The paint spraying assembly is provided in two groups, and the two groups of paint spraying assemblies are arranged at intervals and mounted on the bracket; A transfer component connected to the bracket to transfer the circuit board; A drying assembly is mounted on the transfer assembly to dry the painted circuit boards; The flipping assembly is connected to the transfer assembly and flips the circuit board. The flipping assembly is located between the two sets of painting assemblies, and the flipping assembly includes: A clamping frame, connected to the transfer assembly, and clamping the circuit board; Flip the gear and connect it to the clamping frame; The flip rack is fixedly connected to the bracket and can mesh with the flip gear.

[0008] Furthermore, the clamping frame comprises: Two clamping rods are provided, and the two clamping rods are respectively arranged on both sides of the circuit board and can move in a direction close to or away from each other, and one of the clamping rods is connected to the transfer assembly; There are two clamping plates, which can move towards or away from each other. The clamping rod is provided with a moving component for driving the clamping rod and the clamping plate to move synchronously.

[0009] Furthermore, the mobile components include: There are multiple movable magnets, which are divided into two groups, and one group of movable magnets is correspondingly arranged with a clamping rod, the movable magnets are connected with the corresponding clamping rod, and the movable magnets on the two clamping rods are magnetically connected; Four connecting rods are provided, and the connecting rods are arranged in groups of two. One group of connecting rods is connected to a clamping plate, and the connecting rods and clamping rods in the same group are arranged in a one-to-one correspondence. One end of the two connecting rods in the same group is rotatably connected to the corresponding clamping plate, and the other end is rotatably connected to the corresponding clamping rod.

[0010] Furthermore, the two clamping rods are provided with an adjustment component for adjusting the distance between the two clamping rods, and the adjustment component includes: An adjusting rack is fixedly connected to one clamping rod and slidably connected to another clamping rod; An adjusting gear meshes with the adjusting rack and is rotationally connected to a clamping rod that is slidably connected to the adjusting rack; The bracket is provided with a driving assembly for driving the adjusting gear to rotate.

[0011] Furthermore, the driving assembly comprises: A driving wheel is coaxially fixedly connected to the adjusting gear, and a plurality of teeth are fixedly connected to the peripheral side wall of the driving wheel, and the extension length of the plurality of teeth does not exceed three quarters of the circumference of the driving wheel; The driving rack is fixedly connected to the bracket and meshes with the teeth of the driving wheel.

[0012] Furthermore, the transport component comprises: There are two groups of transfer conveyor belts, both of which are connected to the brackets in a transmission manner and are arranged at intervals. The clamping rods are mounted on the two transfer conveyor belts and connected to the transfer conveyor belts. A feeding conveyor belt is drivingly connected to the bracket, the feeding conveyor belt is located on a side of the paint spraying component away from the drying component, and a straight section of the feeding conveyor belt away from the ground is flush with the straight section of the transfer conveyor belt; The unloading conveyor belt is transmission-connected with the bracket. The unloading conveyor belt is located on the side of the drying component away from the painting component, and along the moving direction of the circuit board on the unloading conveyor belt, the unloading conveyor belt is inclined toward the ground.

[0013] Furthermore, two shells are fixedly connected to the bracket, and one end of each of the shells is fixedly connected to the bracket, and the other end is bent toward the direction close to the clamping rod and can interfere with the clamping rod. One of the shells is located above the loading conveyor belt and extends to the bottom of a paint spraying component away from the drying component, and the other shell is located above the unloading conveyor belt and extends to the bottom of a paint spraying component close to the drying component.

[0014] On the other hand, the present application provides a circuit board production device, which adopts the following technical solution: A production process for a circuit board comprises the following steps: using the production device for the circuit board to perform surface treatment on the circuit board: coating a layer of anti-oxidation paint on the circuit board and drying the layer.

[0015] In summary, the beneficial technical effect of the present application is that the setting of the flipping component eliminates the need for workers to manually flip and re-clamp the circuit board, thereby facilitating the painting of the circuit board and improving the efficiency of painting the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 It is a partial cross-sectional view of an embodiment of the present application.

[0018] Figure 3 It is a schematic diagram of the overall structure of the flip assembly in the embodiment of the present application.

[0019] Figure 4 It is a partial cross-sectional view of the flip assembly in the embodiment of the present application to illustrate the adjustment assembly.

[0020] Reference numerals: 100, bracket; 110, housing; 200, spray paint assembly; 210, nozzle plate; 211, feeding pipe; 300, transfer assembly; 310, transfer conveyor belt; 311, rotating roller; 320, feeding conveyor belt; 321, driving roller; 330, unloading conveyor belt; 331, conveying roller; 400, turning assembly; 410, clamping frame; 411, clamping rod; 412, clamping plate; 413, slider; 414, bidirectional screw; 415, rotating roller; 420, flip gear; 430, flip rack; 500, drying assembly; 600, moving assembly; 610, moving magnet; 611, buffer spring; 620, connecting rod; 700, adjusting assembly; 710, adjusting rack; 720, adjusting gear; 730, adjusting rod; 731, connecting sleeve; 732, connecting sub-rod; 733, locking bolt; 800, driving assembly; 810, driving wheel; 811, teeth; 820, driving rack; 900, receiving box. DETAILED DESCRIPTION

[0021] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0022] The present application embodiment discloses a circuit board production device. Figure 1 The production device includes a bracket 100, a paint spraying assembly 200, a transfer assembly 300, a turning assembly 400 and a drying assembly 500.

[0023] The bracket 100 is erected on the ground and fixedly connected to the ground. The paint spraying assembly 200 is used to spray paint on the board surface of the circuit board. The paint spraying assembly 200 is provided with two groups. The two groups of paint spraying assemblies 200 are arranged in sequence along the moving direction of the circuit board, and the two groups are arranged at intervals. Both groups of paint spraying assemblies 200 include a nozzle plate 210 and a plurality of nozzles. The nozzle plate 210 is fixedly connected to the bracket 100 and erected above the transfer assembly 300. A cavity is provided on the nozzle plate 210. The side of the nozzle plate 210 away from the ground is connected to a feeding pipe 211 for feeding paint. The side of the feeding pipe 211 away from the nozzle plate 210 is connected to a accommodating device for holding paint through a pump. Multiple nozzles are connected to the side of the nozzle plate 210 away from the feeding pipe 211, and are connected to the cavity, and the nozzles of the nozzles are arranged toward the ground.

[0024] The two groups of spray paint assemblies 200 are respectively the first spray paint assembly and the second spray paint assembly along the moving direction of the circuit board. The drying assembly 500 is a drying box, and the drying box is located on the side of the second spray paint assembly away from the first spray paint assembly. The transfer assembly 300 passes through the drying box to drive the circuit board through the drying box so that the drying box can dry the painted circuit board.

[0025] Reference Figure 2 The transfer assembly 300 includes a transfer conveyor belt 310, a loading conveyor belt 320 and a discharge conveyor belt 330. Two transfer conveyor belts 310 are provided, and the two transfer conveyor belts 310 are arranged at intervals, and both are connected to the support 100 in a transmission manner. A plurality of rotating rollers 311 are fixedly connected to the support 100, and the plurality of rotating rollers 311 are divided into two groups, one group of rotating rollers 311 is arranged corresponding to one transfer conveyor belt 310, and the two groups of rotating rollers 311 are arranged at intervals, and the ends of the two groups of rotating rollers 311 that are away from each other are both connected to the support 100 in a rotational manner. The transfer conveyor belt 310 is sleeved on the outer side of the corresponding rotating roller 311, so as to realize the transmission connection between the transfer conveyor belt 310 and the support 100. A rotating roller 311 located at the end of the transfer conveyor belt 310 is coaxially fixedly connected with the output shaft of a transfer motor, and the body of the rotating motor is fixedly connected to the support 100, so that the rotating motor drives the corresponding rotating roller 311 to rotate and makes the transfer conveyor belt 310 run.

[0026] The feeding conveyor belt 320 is connected to the support 100 in a transmission manner. The feeding conveyor belt 320 is located on the side of the first painting assembly 200 away from the second painting assembly 200. The feeding conveyor belt 320 is located between the two sets of transfer conveyor belts 310, and the straight section of the feeding conveyor belt 320 away from the ground is arranged flush with the straight section of the transfer conveyor belt 310 away from the ground. The support 100 is rotatably connected with a plurality of transmission rollers 321, and the feeding conveyor belt 320 is sleeved on the outer side of the plurality of transmission rollers 321 to realize the transmission connection between the feeding conveyor belt 320 and the support 100. A transmission roller 321 located at the end of the feeding conveyor belt 320 is coaxially fixedly connected with the output shaft of a feeding motor, and the body of the feeding motor is fixedly connected to the support 100, so that the feeding motor drives the corresponding transmission roller 321 to rotate, thereby making the feeding conveyor belt 320 run.

[0027] The unloading conveyor belt 330 is in transmission connection with the bracket 100. The unloading conveyor belt 330 is located on the side of the drying component 500 away from the paint spraying component 200 and between the two groups of transfer conveyor belts 310. In the direction close to the ground, the straight section of the transfer conveyor belt 310 away from the ground and the straight section of the unloading conveyor belt 330 away from the ground are arranged in sequence, and the interval between the two is not less than the thickness of the circuit board, so that the circuit board is not easily driven to move by the transfer conveyor belt 310 after falling onto the unloading conveyor belt 330. A plurality of conveying rollers 331 are rotatably connected to the bracket 100, and the unloading conveyor belt 330 is sleeved on the conveying rollers 331 to realize the transmission connection between the unloading conveyor belt 330 and the bracket 100. A conveying roller 331 located at the end of the unloading conveyor belt 330 is coaxially fixedly connected to the output shaft of a unloading motor, and the body of the unloading motor is fixedly connected to the bracket 100. Along the moving direction of the circuit board on the unloading conveyor belt 330 , the unloading conveyor belt 330 is inclined toward the direction close to the ground.

[0028] A receiving box 900 is placed on the ground, and is located just below one end of the unloading conveyor belt 330 close to the ground, so that the receiving box 900 can receive the circuit boards dropped from the unloading conveyor belt 330. In order to cushion the drop of the circuit boards, an air bag is provided at the bottom of the receiving box 900.

[0029] Reference Figure 2 and Figure 3 , the flip assembly 400 is used to clamp the circuit board. The flip assembly 400 includes a clamping frame 410, a flip gear 420 and a flip rack 430. The clamping frame 410 includes two clamping rods 411 and two clamping plates 412. The two clamping rods 411 are arranged at both sides of the circuit board and can move in a direction close to or away from each other. The two clamping rods 411 are set between the two transfer conveyor belts 310, and the two clamping rods 411 are divided into a first clamping rod and a second clamping rod. The first clamping rod is rotatably connected to the transfer conveyor belt 310, and the second clamping rod is overlapped on the two transfer conveyor belts 310. The two clamping plates 412 are arranged at both ends of the circuit board, so that the clamping plates 412 and the clamping rods 411 are arranged along the circumference of the circuit board to clamp the circuit board. In order to prevent the circuit board from falling off the clamping frame 410, a rubber pad is fixedly connected to the clamping plate 412 and the clamping rod 411 on the side close to the circuit board to increase the friction between the circuit board and the clamping frame 410. The two clamping plates 412 can move toward or away from each other, and the clamping rod 411 is provided with a moving assembly 600 for driving the clamping rod 411 and the clamping plate 412 to move synchronously.

[0030] The moving assembly 600 includes a moving magnet 610 and a connecting rod 620. There are multiple moving magnets 610. In this embodiment, there are four moving magnets 610. The four moving magnets 610 are arranged in groups of two, and one group of moving magnets 610 is arranged corresponding to a clamping rod 411. The moving magnets 610 are fixedly connected to the corresponding clamping rod 411, and the moving magnets 610 in the same group are arranged on both sides of the circuit board. The moving magnets 610 on the two clamping rods 411 are arranged opposite to each other and magnetically connected. There are four connecting rods 620. The connecting rods 620 are arranged in groups of two, and one group of connecting rods 620 is connected to a clamping plate 412, and the connecting rods 620 in the same group are arranged one by one with the clamping rod 411. The two connecting rods 620 in the same group are arranged tilted, and the tilting directions are opposite. The two connecting rods 620 in the same group are both rotatably connected to the corresponding clamping plate 412 at one end, and rotatably connected to the corresponding clamping rod 411 at the other end.

[0031] In order to make the clamping frame 410 suitable for clamping circuit boards of different sizes, two sliders 413 are slidably connected to the clamping rods 411411, and the sliders 413 correspond to the connecting rods 620 one by one, and the sliders 413 are rotatably connected to the corresponding connecting rods 620. A bidirectional lead screw 414 is rotatably connected to the clamping rod 411, and the two sliders 413 are threadedly connected to the bidirectional lead screw, so that when the bidirectional lead screw 414 rotates, the two sliders 413 can be synchronously moved closer or farther away. A roller 415 is coaxially fixedly connected to the bidirectional lead screw 414, and the side of the roller 415 facing away from the ground protrudes from the clamping rod 411, so that the staff can rotate the roller 415 to realize the rotation of the bidirectional lead screw 414.

[0032] When the staff puts the circuit board between the clamping rod 411 and the clamping plate 412, the movable magnets 610 on the two clamping rods 411 attract each other, thereby driving the second clamping rod to move toward the first clamping rod until the clamping rod 411 and the clamping plate 412 both contact the side of the circuit board to complete the clamping of the circuit board.

[0033] In order to reduce the impact on the circuit board when the clamping rod 411 and the clamping plate 412 collide with the circuit board, a buffer spring 611 is fixedly connected to the moving magnet 610 on the first clamping rod, and the buffer spring 611 can collide with the moving magnet 610 on the second clamping rod.

[0034] Reference Figure 2 and Figure 4, the two clamping rods 411 are provided with an adjustment assembly 700 for adjusting the distance between the two clamping rods 411. The adjustment assembly 700 is provided with two groups, and the two groups of adjustment assemblies 700 are respectively provided on both sides of the circuit board. The adjustment assembly 700 includes an adjustment rack 710 and an adjustment gear 720. The adjustment gear 720 is rotatably connected to the first clamping rod, and the adjustment rack 710 is fixedly connected to the second clamping rod through the adjustment rod 730, and is slidably connected to the first clamping rod, and the adjustment gear 720 is meshed with the adjustment rack 710. The bracket 100 is provided with a driving assembly 800 for driving the adjustment gear 720 to rotate. The driving assembly 800 includes a driving wheel 810 and a driving rack 820. The driving wheel 810 is coaxially fixedly connected to the adjusting gear 720. A plurality of teeth 811 are fixedly connected to the outer peripheral wall of the driving wheel 810. The extension length of the plurality of teeth 911 does not exceed three quarters of the circumference of the driving wheel 810. In this embodiment, the extension length of the plurality of teeth 911 is three quarters of the driving wheel 810. Two driving racks 810 are provided. Both driving racks 810 are fixedly connected to the bracket 100 and are located on the moving track of the driving wheel 810, and can mesh with the teeth of the driving wheel 810. One of the driving racks 820 is located on the side of the drying assembly 500 away from the spray painting assembly 200 and is located above the unloading conveyor belt 330. The other driving rack 810 is located on the side of the first spray painting assembly away from the drying assembly 500 and is located above the loading conveyor belt 320.

[0035] In order to further enable the clamping frame 410 to be suitable for clamping circuit boards of different sizes, the adjustment rod 730 is a telescopic rod, and the adjustment rod 730 includes a connecting sleeve 731 and a connecting sub-rod 732. The connecting sleeve 731 is fixedly connected to the second clamping rod 411, and one end of the connecting sub-rod 732 is slidably connected to the second clamping rod 411, and the other end is slidably connected to the connecting sleeve 731. A locking bolt 733 for locking the sliding size of the connecting sub-rod 732 is provided on the connecting sleeve 731, and the locking bolt 733 is threadedly connected to the connecting sleeve 731 and contacts the connecting sub-rod 732.

[0036] In order to prevent the clamping frame 410 from rotating when the driving rack 820 drives the driving wheel 810 to rotate, a housing 110 is fixedly connected to the bracket 100. Two housings 110 are provided, one of which is located above the feeding conveyor belt 320 and extends to the bottom of the paint spraying plate of the first paint spraying assembly 200; the other housing 110 is located below the paint spraying plate of the second paint spraying assembly 200 and extends to the top of the unloading conveyor belt 330. One side of the two housings 110 is fixedly connected to the bracket 100, and the other side is bent toward the direction close to the clamping rod 411 and can contact the clamping rod 411, so that the housing 110 can limit the clamping rod 411 on the one hand, and protect the driving assembly 800 on the other hand, so that the paint is not easy to be sprayed on the driving assembly 800.

[0037] Based on the above production device, this embodiment also proposes a production process for a circuit board, including the following steps: surface treatment: coating a layer of anti-oxidation paint on the circuit board.

[0038] The implementation principle of the circuit board production device of the embodiment of the present application is as follows: when the transfer conveyor belt 310 drives the clamping frame 410 to move above the feeding conveyor belt 320, the teeth 811 of the driving wheel 810 mesh with the driving rack 820, so that the driving wheel 810 rotates, and at the same time the adjusting gear 720 rotates and drives the adjusting rack 710 to make the second clamping rod 411 move away from the first clamping rod 411, so that the distance between the two clamping rods 411 becomes larger, and at the same time the distance between the two clamping plates 412 becomes larger. The distance between the two ends becomes larger. At this time, the staff will place the circuit board between the clamping plate 412 and the clamping rod 411. When the feeding conveyor belt 320 drives the circuit board to continue to move, and the transfer conveyor belt 310 drives the clamping frame 410 to continue to move, the meshing state between the teeth 811 of the driving wheel 810 and the driving rack 820 is gradually released. The two clamping rods 411 move towards each other under the suction of the moving magnet 610 until the clamping rod 411 and the clamping plate 412 both contact the side of the circuit board, completing the clamping of the circuit board. When the transfer conveyor belt 310 continues to run, the transfer conveyor belt 310 drives the circuit board to enter the bottom of the first spray painting assembly 200 for spraying paint; When one side of the circuit board is painted, the transfer conveyor belt 310 drives the circuit board to a position where the flip gear 420 is meshed with the flip rack 430, so that the flip gear 420 rotates under the action of the flip rack 430 and drives the clamping frame 410 to turn the circuit board over. After the circuit board is turned over, the transfer conveyor belt 310 drives the circuit board into the second painting assembly 200 for painting, and then enters the drying assembly 500 for drying; After the circuit board is dried, the transfer conveyor belt 310 drives the circuit board to move above the unloading conveyor belt 330. At this time, the teeth 811 of the driving wheel 810 engage with the driving rack 820 at this position, so that the driving wheel 810 rotates and drives the adjusting gear 720 to rotate, thereby driving the adjusting rack 710 to make the second clamping rod 411 move away from the first clamping rod 411, thereby increasing the distance between the two clamping rods 411 and the distance between the two clamping plates 412. The circuit board falls from the clamping frame 410 to the unloading conveyor belt 330, and enters the receiving box 900 under the action of the unloading conveyor belt 330, thereby completing the processing of the circuit board.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A circuit board production device, characterized in that: include: Bracket (100); A paint spraying assembly (200) is used to spray paint on the surface of the circuit board, wherein two groups of the paint spraying assemblies (200) are provided, and the two groups of the paint spraying assemblies (200) are arranged at intervals and mounted on the bracket (100); A transfer assembly (300) connected to the support (100) for transferring the circuit board; A drying component (500) is mounted on the transfer component (300) to dry the circuit board that has been painted; The flipping assembly (400) is connected to the transfer assembly (300) and flips the circuit board. The flipping assembly (400) is located between the two sets of spray painting assemblies (200), and the flipping assembly (400) includes: A clamping frame (410) is connected to the transfer assembly (300) and clamps the circuit board; The turning gear (420) is connected to the clamping frame (410); The flip rack (430) is fixedly connected to the bracket (100) and is capable of meshing with the flip gear (420).

2. A circuit board production device according to claim 1, characterized in that: The clamping frame (410) comprises: Two clamping rods (411) are provided. The two clamping rods (411) are provided on both sides of the circuit board and are capable of moving in a direction approaching or moving away from each other. One of the clamping rods (411) is connected to the transfer assembly (300); Two clamping plates (412) are provided, and the two clamping plates (412) can move towards or away from each other. The clamping rod (411) is provided with a moving assembly (600) for driving the clamping rod (411) and the clamping plate (412) to move synchronously.

3. A circuit board production device according to claim 2, characterized in that: The moving assembly (600) comprises: A plurality of movable magnets (610) are provided, the plurality of movable magnets (610) are divided into two groups, and one group of movable magnets (610) is provided corresponding to a clamping rod (411), the movable magnets (610) are connected to the corresponding clamping rod (411), and the movable magnets (610) on the two clamping rods (411) are magnetically connected; Four connecting rods (620) are provided. The connecting rods (620) are arranged in groups of two. One group of connecting rods (620) is connected to a clamping plate (412). The connecting rods (620) and the clamping rods (411) in the same group are arranged in a one-to-one correspondence. The two connecting rods (620) in the same group are both rotatably connected to the corresponding clamping plate (412) at one end and rotatably connected to the corresponding clamping rod (411) at the other end.

4. A circuit board production device according to claim 3, characterized in that: The two clamping rods (411) are provided with an adjustment assembly (700) for adjusting the distance between the two clamping rods (411), and the adjustment assembly (700) comprises: An adjusting rack (710) is fixedly connected to one clamping rod (411) and slidably connected to another clamping rod (411); An adjusting gear (720) meshes with the adjusting rack (710) and is rotationally connected to a clamping rod (411) that is slidably connected to the adjusting rack (710); The bracket (100) is provided with a driving assembly for driving the adjusting gear (720) to rotate.

5. A circuit board production device according to claim 4, characterized in that: The driving assembly (800) comprises: A driving wheel (810) is coaxially fixedly connected to the adjusting gear (720), a plurality of teeth (811) being fixedly connected to a peripheral side wall of the driving wheel (810), and an extension length of the plurality of teeth (811) does not exceed three quarters of the circumference of the driving wheel (810); The driving rack (820) is fixedly connected to the bracket (100) and meshes with the teeth (811) of the driving wheel (810).

6. A circuit board production device according to claim 2, characterized in that: The transport assembly (300) comprises: The transfer conveyor belt (310) is provided with two groups, and the two groups of transfer conveyor belts (310) are both transmission-connected to the bracket (100) and are arranged at intervals, and the clamping rod (411) is mounted on the two transfer conveyor belts (310) and connected to the transfer conveyor belts (310); A loading conveyor belt (320) is drivingly connected to the bracket (100), the loading conveyor belt (320) is located on a side of the paint spraying component (200) away from the drying component (500), and a straight section of the loading conveyor belt (320) away from the ground is flush with a straight section of the transfer conveyor belt (310); A discharge conveyor belt (330) is transmission-connected to the bracket (100); the discharge conveyor belt (330) is located on a side of the drying component (500) away from the painting component (200); and along the moving direction of the circuit board on the discharge conveyor belt (330), the discharge conveyor belt (330) is inclined in a direction close to the ground.

7. A circuit board production device according to claim 6, characterized in that: Two shells (110) are fixedly connected to the bracket (100), and one side of the two shells (110) is fixedly connected to the bracket (100), and the other end is bent in a direction close to the clamping rod (411) and can contact the clamping rod (411), wherein one of the shells (110) is located above the loading conveyor belt and extends to the bottom of a paint spraying component (200) away from the drying component (500), and the other shell (110) is located above the unloading conveyor belt (330) and extends to the bottom of a paint spraying component (200) close to the drying component (500).

8. A production process for a circuit board, characterized in that: The method comprises the following steps: using the circuit board production device according to any one of claims 1 to 7 to perform surface treatment on the circuit board: coating a layer of anti-oxidation paint on the circuit board and drying the layer.

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