Automatic cleaning device for PCB (Printed Circuit Board)

Abstract

The utility model relates to the technical field of PCB circuit board processing, and discloses an automatic cleaning device of a PCB circuit board, which comprises a machine body, the top of the machine body is fixedly connected with a workbench, the inner bottom wall of the machine body is fixedly connected with a liquid storage tank, the top of the liquid storage tank is fixedly connected with a liquid outlet pipe, one end of the liquid outlet pipe is fixedly connected with a pressure pump, and the other end of the liquid outlet pipe is fixedly connected with a water pump. The output end of the pressure pump is fixedly connected with a connecting pipe, and the end, away from the pressure pump, of the connecting pipe is fixedly connected with a flow divider. The circuit board cleaning device has the following advantages and effects that through the arrangement of the liquid storage box, the liquid outlet pipe, the pressure pump, the flow divider, the atomization cleaning spray head, the driving motor, the driving gear, the driven gear, the threaded rod, the threaded block, the connecting column, the movable base, the driving machine box and the strip-shaped supporting plate, the trouble of manually turning over the circuit board is avoided through the design; and double-sided cleaning of the circuit board can be realized at one time, so that the device has the characteristic of high cleaning efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB circuit board processing technical field, especially a kind of automatic cleaning device of PCB circuit board. BACKGROUND

[0002] PCB circuit board is the carrier of electronic components, by welding electronic components on the circuit board, realize the function of electronic equipment. Whether it is mobile phone, computer, TV or household appliances and various electronic products, cannot do without the application of PCB circuit board. PCB circuit board needs to be used welding device to weld various grid components on the circuit board during processing, and the board surface of the circuit board usually needs to be cleaned after welding to ensure the neatness and cleanliness of PCB circuit board.

[0003] Chinese patent publication number (CN215581944U) discloses a kind of PCB board surface automatic cleaning device, it is related to PCB board cleaning technical field.The utility model includes base and several side plates, the number of side plates is two, the upper surface of two side plates is provided with several pumps, the lower surface of two side plates is provided with water tank, pump is connected with water tank, the upper surface of pump is provided with extension column, the upper surface of extension column is provided with spray head, spray head is communicated with pump by extension column.The utility model places the PCB board to be cleaned on the silica gel pad block on the conveying belt by setting water tank and spray head, starts pump and evenly sprays circuit board cleaning agent in water tank on the surface of PCB board, when PCB board passes through air blower, start air blower to clean the dust adhered to the surface and dry the PCB board cleaned, process is coherent and convenient, cleaning efficiency is high, and manpower resource is saved.

[0004] But the above-mentioned utility model still has the following problems: when PCB circuit board is welded component, the positive and negative two sides of general circuit board are welded with electronic components, so when cleaning PCB circuit board, the positive and negative two sides of PCB circuit board need to be cleaned, and the utility model can only complete the cleaning of the upper surface of PCB circuit board when cleaning PCB circuit board, and the circuit board needs to be turned over manually, which not only consumes manpower resources, but also affects the cleaning efficiency, so it needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of automatic cleaning device of PCB circuit board, with the effect of high cleaning efficiency.

[0006] The technical purpose is achieved by the following technical scheme: the automatic cleaning device of the PCB circuit board comprises a machine body, the top of the machine body is fixedly connected with a workbench, the inner bottom wall of the machine body is fixedly connected with a liquid storage tank, the top of the liquid storage tank is fixedly connected with a liquid outlet pipe, one end of the liquid outlet pipe is fixedly connected with a pressure pump, the output end of the pressure pump is fixedly connected with a connecting pipe, the end of the connecting pipe away from the pressure pump is fixedly connected with a flow divider, the outer surface of the flow divider is fixedly connected with an atomizing cleaning nozzle, the inner bottom wall of the machine body is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a driving gear, the top of the driving gear is engaged with a driven gear, the inner wall of the driven gear is inserted with a threaded rod, the outer surface of the threaded rod is threadedly connected with a screw block, the top of the screw block is fixedly connected with a connecting column, the top of the connecting column is fixedly connected with a moving base, the top of the moving base is fixedly connected with a driving machine box, and the outer surface of the driving machine box is provided with a strip-shaped supporting plate.

[0007] By adopting the above technical scheme, when the device is used, the circuit board is only needed to be placed above the strip-shaped supporting plate, then the cleaning liquid in the liquid storage tank is pumped out from the liquid outlet pipe by the pressure pump and sent into the flow divider through the connecting pipe, and finally the atomizing cleaning nozzles distributed above and below in the flow divider are formed into mist and sprayed out, at this time, the driving motor is operated, the screw block and the connecting column are driven to move the moving base by the transmission of the driving gear, the driven gear and the threaded rod, and the circuit board on the strip-shaped supporting plate is driven into the flow divider in the moving process of the moving base, and the cleaning of the upper and lower surfaces of the circuit board can be completed in the process of continuous movement, the design avoids the trouble of manually turning over the circuit board, the double-sided cleaning of the circuit board can be realized at one time, and the cleaning efficiency of the device is high.

[0008] The utility model further provides: the number of strip-shaped supporting plate is two, the upper surface of two strip-shaped supporting plates is all fixedly connected with antiskid pad.

[0009] By adopting the above technical scheme, by setting antiskid pad above the strip-shaped supporting plate, the friction between the strip-shaped supporting plate and the circuit board is enhanced, and the circuit board can be prevented from sliding off the strip-shaped supporting plate during cleaning.

[0010] The utility model further provides: the inner wall of machine body is fixedly connected with first bearing seat, the number of first bearing seat is two, the inner wall of two first bearing seat is all fixedly connected with bearing, the threaded rod is rotatably connected with first bearing seat through pivot.

[0011] By adopting the technical scheme, the first bearing seat and the bearing are arranged, the position of the threaded rod is fixed and supported, and the threaded rod can rotate.

[0012] The utility model discloses further provide: the upper surface of work table is equipped with rectangular groove, mobile base and rectangular groove sliding connection, the inner bottom wall of rectangular groove is equipped with limit groove, connecting column and limit groove sliding connection.

[0013] By adopting the technical scheme, the rectangular groove is arranged, the stability of the mobile base during movement is improved, the bar-shaped supporting plate is kept stable during movement, and the circuit board is prevented from falling from the bar-shaped supporting plate, the limit groove is arranged, and the movement range of the mobile base is limited.

[0014] The utility model discloses further provide: the upper surface of work table is fixedly connected with mounting panel, mounting panel and shunt fixed connection.

[0015] By adopting the technical scheme, the mounting panel is arranged, the work table and the shunt are connected, and the shunt is supported and fixed.

[0016] The utility model discloses further provide: the outer surface of machine body is hinged with box door, the outer surface of box door is fixedly connected with handle.

[0017] By adopting the technical scheme, the box door and the handle are arranged, the staff can open the machine body to fill the cleaning fluid in the liquid storage tank.

[0018] The utility model discloses further provide: the inner wall of drive machine case is fixedly connected with second bearing seat, the inner wall rotation of second bearing seat is connected with two -way screw rod, two -way screw rod away from the one end fixed connection of second bearing seat has the pivot, the one end fixed connection of pivot has rotary wheel disc, the outer surface screw connection of two -way screw rod has limit block, the outer surface fixed connection of limit block has connecting rod, the one end fixed connection of connecting rod has limit seat, limit seat and bar -shaped supporting plate fixed connection.

[0019] By adopting the technical scheme, when in use, the rotating rotary wheel disc drives the bidirectional screw rod to rotate, and then drives the limiting block to drive the connecting rod and the limiting seat to move towards each other or to move away from each other, that is, to drive the strip-shaped supporting plates to move towards each other or to move away from each other, the design realizes the adjustment of the distance between the two strip-shaped supporting plates, and when the strip-shaped supporting plates are used, the distance between the two strip-shaped supporting plates can be adjusted, the length between the two strip-shaped supporting plates is equal to the length of the circuit board, and the strip-shaped supporting plates can be suitable for lifting circuit boards of different lengths, and the applicability and practicality of the device are enhanced.

[0020] The utility model discloses further provide that: the outer surface of drive machine box is provided with strip -shaped sliding slot, connecting rod passes strip -shaped sliding slot and limiting seat fixed connection, connecting rod and strip -shaped sliding slot sliding connection.

[0021] By adopting the technical scheme, the connecting rod and the limiting seat are fixedly connected through the strip-shaped sliding slot, and the movement range of the limiting seat is limited.

[0022] The utility model discloses further provide that: the inner wall of drive machine box is fixedly connected with sliding rail, the outer surface of sliding rail is connected with sliding block, the outer surface of sliding block is fixedly connected with support rod, support rod and limiting block fixed connection.

[0023] By adopting the technical scheme, the stability of the limiting block when moving is improved, and the stability of the strip-shaped supporting plate when adjusting the position is improved.

[0024] The utility model discloses further provide that: the upper surface of mobile base is fixedly connected with connecting angle board, the number of connecting angle board is two, two connecting angle board all with drive machine box fixed connection.

[0025] By adopting the technical scheme, the connecting angle board is arranged to connect the mobile base and the drive machine box, and the fastening of the mobile base and the drive machine box is improved.

[0026] The beneficial effects of this utility model are as follows: By setting up a liquid storage tank, a liquid outlet pipe, a pressure pump, a distributor, atomizing cleaning nozzles, a drive motor, a drive gear, a driven gear, a threaded rod, a screw block, a connecting column, a movable base, a drive housing, and a strip tray, when using this device, simply place the circuit board on top of the strip tray. Then, the pressure pump operates to draw the cleaning liquid from the storage tank through the liquid outlet pipe and send it into the distributor through the connecting pipe. Finally, the atomizing cleaning nozzles distributed above and below in the distributor form a mist spray. At this time, the drive motor operates, and through the transmission of the drive gear, driven gear, and threaded rod, it drives the screw block and connecting column to move the movable base. During the movement of the movable base, the circuit board on the strip tray is carried into the distributor. The cleaning of the circuit board is completed during the continuous movement. This design... This design avoids the hassle of manually flipping circuit boards, enabling double-sided cleaning in a single operation and achieving high cleaning efficiency. By incorporating a drive housing, second bearing seat, bidirectional lead screw, rotating shaft, rotating wheel, limit block, connecting rod, limit seat, and strip trays, the device allows for operation by rotating the rotating wheel to drive the bidirectional lead screw, which in turn drives the limit block to move the connecting rod and limit seat in opposite directions. This movement causes the strip trays to move closer or further apart, allowing for adjustment of the distance between the two strip trays. By adjusting the distance, the length between the two strip trays can be made equal to that of the circuit board, making the strip trays suitable for supporting circuit boards of varying lengths, thus enhancing the device's applicability and practicality. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the shunt in this utility model;

[0030] Figure 3 This is a schematic diagram of the drive motor in this utility model;

[0031] Figure 4 This is a schematic diagram of the bidirectional lead screw in this utility model.

[0032] In the figure, 1, machine body; 2, workbench; 3, liquid storage tank; 4, liquid outlet pipe; 5, pressure pump; 6, connecting pipe; 7, flow divider; 8, atomizing cleaning nozzle; 9, driving motor; 10, driving gear; 11, driven gear; 12, threaded rod; 13, screw block; 14, connecting column; 15, moving base; 16, driving machine box; 17, strip-shaped supporting plate; 18, non-slip pad; 19, first bearing seat; 20, rectangular groove; 21, limiting groove; 22, mounting plate; 23, tank door; 24, handle; 25, second bearing seat; 26, bidirectional screw rod; 27, rotating shaft; 28, rotating wheel disc; 29, limiting block; 30, connecting rod; 31, limiting seat; 32, strip-shaped sliding groove; 33, sliding rail; 34, sliding block; 35, supporting rod; 36, connecting gusset. DETAILED DESCRIPTION

[0033] The technical scheme of the utility model will be described clearly and completely in combination with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0034] REFERENCE Figures 1-4The utility model provides an automatic cleaning device of PCB circuit board, including body 1, the top fixed connection of body 1 has workstation 2, the inner bottom wall fixed connection of body 1 has liquid storage tank 3, the top fixed connection of liquid storage tank 3 has liquid outlet pipe 4, one end fixed connection of liquid outlet pipe 4 has pressure pump 5, the output fixed connection of pressure pump 5 has connecting pipe 6, the one end fixed connection of connecting pipe 6 away from pressure pump 5 has shunt 7, the outer surface fixed connection of shunt 7 has atomization cleaning spray head 8, the inner bottom wall fixed connection of body 1 has drive motor 9, the output fixed connection of drive motor 9 has drive gear 10, the top engagement of drive gear 10 has driven gear 11, the inner wall insertion of driven gear 11 has threaded rod 12, the outer surface screw thread connection of threaded rod 12 has screw block 13, the top fixed connection of screw block 13 has connecting column 14, the top fixed connection of connecting column 14 has mobile base 15, the top fixed connection of mobile base 15 has drive machine case 16, the outer surface of drive machine case 16 is provided with strip-shaped supporting plate 17, by setting liquid storage tank 3, liquid outlet pipe 4, pressure pump 5, shunt 7, atomization cleaning spray head 8, drive motor 9, drive gear 10, driven gear 11, threaded rod 12, screw block 13, connecting column 14, mobile base 15, drive machine case 16 and strip-shaped supporting plate 17, when using the device, just need to place the circuit board above strip-shaped supporting plate 17, then pressure pump 5 works and extracts the cleaning fluid in liquid storage tank 3 from liquid outlet pipe 4, and sends into shunt 7 through connecting pipe 6, finally by the atomization cleaning spray head 8 in shunt 7 and distributed above and below form mist spray, drive motor 9 works at this time, and moves mobile base 15 by the transmission of drive gear 10, driven gear 11 and threaded rod 12 and drives screw block 13 and connecting column 14, and the circuit board on strip-shaped supporting plate 17 is driven into shunt 7 in the process of mobile base 15, and can complete the cleaning of the upper and lower circuit board in the process of continuous travel, the design avoids the trouble of manually turning the circuit board, can realize the double -sided cleaning of the circuit board at a time, so as to reach the characteristics that the device is high in cleaning efficiency, the number of strip-shaped supporting plate 17 is two, the upper surface of two strip-shaped supporting plate 17 is all fixedly connected with antiskid pad 18, by setting antiskid pad 18 above strip-shaped supporting plate 17, the friction between strip-shaped supporting plate 17 and the circuit board is enhanced, can prevent the circuit board from slipping off from strip-shaped supporting plate 17 during cleaning, the inner wall fixed connection of body 1 has first bearing seat 19, the number of first bearing seat 19 is two, the inner wall of two first bearing seat 19 is all fixedly connected with bearing, threaded rod 12 is rotatably connected with first bearing seat 19 through the pivot, by setting first bearing seat 19 and bearing, the position of threaded rod 12 is fixed and supported, and threaded rod 12 can rotate at the same time, the upper surface of workstation 2 is provided with rectangular groove 20, mobile base 15 is slidably connected with rectangular groove 20, the inner bottom wall of rectangular groove 20 is provided with limiting slot 21, connecting column 14 is slidably connected with limiting slot 21, by setting rectangular groove 20,The stability of the mobile base 15 during movement can be improved, and the strip-shaped supporting plate 17 can be kept stable during movement, so that the circuit board is prevented from falling off the strip-shaped supporting plate 17. The upper surface of the workbench 2 is fixedly connected with a mounting plate 22, and the mounting plate 22 is fixedly connected with the shunt 7. The mounting plate 22 is provided to connect the workbench 2 and the shunt 7 and to support and fix the shunt 7. The outer surface of the machine body 1 is hingedly connected with a box door 23, and the outer surface of the box door 23 is fixedly connected with a handle 24. The box door 23 and the handle 24 are provided to facilitate the staff to open the machine body 1 to fill the cleaning liquid in the liquid storage tank 3. The inner wall of the drive machine box 16 is fixedly connected with a second bearing seat 25, the inner wall of the second bearing seat 25 is rotatably connected with a bidirectional screw rod 26, one end of the bidirectional screw rod 26 away from the second bearing seat 25 is fixedly connected with a rotating shaft 27, one end of the rotating shaft 27 is fixedly connected with a rotating wheel disc 28, the outer surface of the bidirectional screw rod 26 is threadedly connected with a limiting block 29, the outer surface of the limiting block 29 is fixedly connected with a connecting rod 30, one end of the connecting rod 30 is fixedly connected with a limiting seat 31, and the limiting seat 31 is fixedly connected with the strip-shaped supporting plate 17. The drive machine box 16, the second bearing seat 25, the bidirectional screw rod 26, the rotating shaft 27, the rotating wheel disc 28, the limiting block 29, the connecting rod 30, the limiting seat 31 and the strip-shaped supporting plate 17 are provided to rotate the rotating wheel disc 28 to drive the bidirectional screw rod 26 to rotate, and then drive the limiting block 29 to drive the connecting rod 30 and the limiting seat 31 to move towards each other or move away from each other, that is, drive the strip-shaped supporting plate 17 to move towards each other or move away from each other. This design adjusts the distance between the two strip-shaped supporting plates 17. The distance between the two strip-shaped supporting plates 17 can be adjusted when the strip-shaped supporting plate 17 is used, so that the length between the two strip-shaped supporting plates 17 is equal to the length of the circuit board, and the strip-shaped supporting plate 17 can be suitable for lifting circuit boards of different lengths, thereby enhancing the applicability and practicality of the device. The outer surface of the drive machine box 16 is provided with a strip-shaped sliding groove 32, the connecting rod 30 passes through the strip-shaped sliding groove 32 and is fixedly connected with the limiting seat 31, the connecting rod 30 is slidably connected with the strip-shaped sliding groove 32, the strip-shaped sliding groove 32 is provided to facilitate the fixed connection of the connecting rod 30 and the limiting seat 31, and the movement range of the limiting seat 31 is limited. The inner wall of the drive machine box 16 is fixedly connected with a sliding rail 33, the outer surface of the sliding rail 33 is slidably connected with a sliding block 34, the outer surface of the sliding block 34 is fixedly connected with a supporting rod 35, and the supporting rod 35 is fixedly connected with the limiting block 29. The sliding rail 33, the sliding block 34 and the supporting rod 35 are provided to improve the stability of the limiting block 29 during movement, thereby improving the stability of the strip-shaped supporting plate 17 during position adjustment. The upper surface of the mobile base 15 is fixedly connected with a connecting angle plate 36, the number of the connecting angle plates 36 is two, and the two connecting angle plates 36 are fixedly connected with the drive machine box 16. The connecting angle plate 36 is provided to connect the mobile base 15 and the drive machine box 16.To improve the fastening between the driving box 16 and the moving base 15.

[0035] In the utility model, through setting up liquid storage tank 3, liquid outlet pipe 4, pressure pump 5, flow divider 7, atomization cleaning nozzle 8, driving motor 9, driving gear 10, driven gear 11, threaded rod 12, screw block 13, connecting column 14, moving base 15, driving box 16 and strip-shaped supporting plate 17, when using the device, only need to place the circuit board above strip-shaped supporting plate 17, then pressure pump 5 works to draw the cleaning liquid in liquid storage tank 3 from liquid outlet pipe 4, and sends into flow divider 7 through connecting pipe 6, finally forms mist spray by atomization cleaning nozzle 8 distributed above and below in flow divider 7, driving motor 9 works at this time, and moves moving base 15 by driving gear 10, driven gear 11 and threaded rod 12 transmission drive screw block 13 and connecting column 14, moving base 15 drives the circuit board on strip-shaped supporting plate 17 to enter flow divider 7 in the process of moving, can complete the cleaning of the upper and lower circuit board in the process of continuous travel, the design avoids the trouble of manually turning the circuit board, can realize the double-sided cleaning of the circuit board at a time, thereby reaches the characteristics that the device is high in cleaning efficiency, through setting up driving box 16, second bearing seat 25, bidirectional screw rod 26, rotating shaft 27, rotating wheel disc 28, limiting block 29, connecting rod 30, limiting seat 31 and strip-shaped supporting plate 17, when using, can drive bidirectional screw rod 26 to rotate by rotating rotating wheel disc 28, and then drive limiting block 29 to drive connecting rod 30 and limiting seat 31 to move towards each other or opposite, that is, drive strip-shaped supporting plate 17 to move close to each other or away from each other, the design realizes the adjustment of the distance between two strip-shaped supporting plates 17, when using strip-shaped supporting plate 17, can adjust the distance between two strip-shaped supporting plates 17, so that the length between two strip-shaped supporting plates 17 is equal to the circuit board, so that strip-shaped supporting plate 17 can be applicable to hoist circuit boards of different lengths, thereby enhancing the applicability and practicality of the device.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning device for PCB circuit boards, comprising a body (1), characterized in that: A workbench (2) is fixedly connected to the top of the machine body (1). A liquid storage tank (3) is fixedly connected to the inner bottom wall of the machine body (1). An outlet pipe (4) is fixedly connected to the top of the liquid storage tank (3). A pressure pump (5) is fixedly connected to one end of the outlet pipe (4). A connecting pipe (6) is fixedly connected to the output end of the pressure pump (5). A distributor (7) is fixedly connected to the end of the connecting pipe (6) away from the pressure pump (5). An atomizing cleaning nozzle (8) is fixedly connected to the outer surface of the distributor (7). A drive motor (9) is fixedly connected to the inner bottom wall of the machine body (1). A drive gear (10) is fixedly connected to the output end of the motor (9). A driven gear (11) meshes with the top of the drive gear (10). A threaded rod (12) is inserted into the inner wall of the driven gear (11). A screw block (13) is threadedly connected to the outer surface of the threaded rod (12). A connecting column (14) is fixedly connected to the top of the screw block (13). A movable base (15) is fixedly connected to the top of the connecting column (14). A drive housing (16) is fixedly connected to the top of the movable base (15). A strip-shaped support plate (17) is provided on the outer surface of the drive housing (16).

2. The automatic cleaning device for a PCB circuit board according to claim 1, characterized in that: There are two strip trays (17), and anti-slip pads (18) are fixedly connected to the upper surface of both strip trays (17).

3. The automatic cleaning device for a PCB circuit board according to claim 1, characterized in that: The inner wall of the body (1) is fixedly connected to a first bearing seat (19). There are two first bearing seats (19). The inner walls of the two first bearing seats (19) are fixedly connected to bearings. The threaded rod (12) is rotatably connected to the first bearing seat (19) through a rotating shaft.

4. The automatic cleaning device for a PCB circuit board according to claim 1, characterized in that: The upper surface of the workbench (2) is provided with a rectangular groove (20), the movable base (15) is slidably connected to the rectangular groove (20), the inner bottom wall of the rectangular groove (20) is provided with a limiting groove (21), and the connecting column (14) is slidably connected to the limiting groove (21).

5. An automatic cleaning device for PCB circuit boards according to claim 1, characterized in that: The upper surface of the workbench (2) is fixedly connected to a mounting plate (22), which is fixedly connected to the distributor (7).

6. The automatic cleaning device for a PCB circuit board according to claim 1, characterized in that: The outer surface of the body (1) is hinged with a box door (23), and a handle (24) is fixedly connected to the outer surface of the box door (23).

7. An automatic cleaning device for PCB circuit boards according to claim 1, characterized in that: The inner wall of the drive housing (16) is fixedly connected to a second bearing seat (25), and the inner wall of the second bearing seat (25) is rotatably connected to a double-acting screw (26). The end of the double-acting screw (26) away from the second bearing seat (25) is fixedly connected to a rotating shaft (27), and the end of the rotating shaft (27) is fixedly connected to a rotating wheel (28). The outer surface of the double-acting screw (26) is threadedly connected to a limiting block (29), and the outer surface of the limiting block (29) is fixedly connected to a connecting rod (30). One end of the connecting rod (30) is fixedly connected to a limiting seat (31), and the limiting seat (31) is fixedly connected to a strip support plate (17).

8. An automatic cleaning device for a PCB circuit board according to claim 7, characterized in that: The outer surface of the drive housing (16) is provided with a strip groove (32), the connecting rod (30) passes through the strip groove (32) and is fixedly connected to the limiting seat (31), and the connecting rod (30) is slidably connected to the strip groove (32).

9. An automatic cleaning device for a PCB circuit board according to claim 1, characterized in that: The inner wall of the drive housing (16) is fixedly connected to a sliding rail (33), the outer surface of the sliding rail (33) is slidably connected to a slider (34), the outer surface of the slider (34) is fixedly connected to a support rod (35), and the support rod (35) is fixedly connected to a limiting block (29).

10. An automatic cleaning device for a PCB circuit board according to claim 1, characterized in that: The upper surface of the movable base (15) is fixedly connected with a connecting corner plate (36), and there are two connecting corner plates (36), both of which are fixedly connected to the drive housing (16).

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