PCB (Printed Circuit Board) etching processing equipment and method

Abstract

The invention relates to the technical field of PCB etching processing equipment, in particular to PCB etching processing equipment and method.The PCB etching processing equipment comprises an etching processing structure, a first mechanical arm, a second mechanical arm and a surface cleaning structure, and the surface cleaning structure is fixedly arranged at the side end of the etching processing structure; a first mechanical arm and a second mechanical arm are arranged between the etching treatment structure and the surface cleaning structure, the first mechanical arm and the second mechanical arm are symmetrically arranged, the etching treatment structure comprises a control adjusting component and a soaking etching component, the upper end of the soaking etching component is fixedly connected with the control adjusting component, and the lower end of the soaking etching component is fixedly connected with the surface cleaning structure. The control adjusting component is used for controlling overturning of the storage base, the soaking etching component is used for etching a PCB in the storage base, the surface cleaning structure comprises a conveying base, a supporting bracket, a fixing bracket, a cleaning component and a fixing rack, and the supporting bracket is fixedly connected to the upper end of the fixing rack. Through the arrangement of the structure, etching processing of the PCB is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of PCB circuit board etching processing equipment, in particular to a PCB circuit board etching processing equipment and method. Background Art

[0002] PCB circuit board etching refers to the removal of unnecessary copper foil parts on the circuit board by chemical methods to form the required circuit pattern. Etching is a key step in the PCB manufacturing process. It usually adopts the "graphic plating method", that is, pre-plating a layer of lead-tin anti-corrosion layer on the copper foil part that needs to be retained on the outer layer of the circuit board, and then chemically corroding the remaining copper foil.

[0003] Existing PCB circuit board etching processing equipment cannot perform integrated production work when in use, so that etching and subsequent surface treatment can be handled in an integrated manner, thereby improving production efficiency. Therefore, it is necessary to set up a structure that can solve the above problem. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a PCB circuit board etching processing device and method.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a PCB circuit board etching processing equipment and method, including an etching processing structure, a first mechanical arm, a second mechanical arm and a surface cleaning structure, the side end of the etching processing structure is fixed with the surface cleaning structure, the first mechanical arm and the second mechanical arm are arranged between the etching processing structure and the surface cleaning structure, and the first mechanical arm and the second mechanical arm are symmetrically arranged; The etching processing structure includes a control and adjustment component and an immersion etching component, wherein the upper end of the immersion etching component is fixedly connected with the control and adjustment component, the control and adjustment component is used for flipping control of the storage seat, and the immersion etching component is used for etching the PCB circuit board in the storage seat; The surface cleaning structure includes a transmission seat, a supporting bracket, a fixed bracket, a cleaning component and a fixed stand. The upper end of the fixed stand is fixedly connected to the supporting bracket, the supporting bracket is drivingly connected to the transmission seat, the front end of the supporting bracket is fixedly connected to the fixed bracket, and the upper end of the fixed bracket is fixedly installed with a cleaning component, which is used for surface cleaning of PCB circuit boards.

[0006] Specifically, the control and adjustment component includes a fixed plate, a first electric hydraulic rod, a push rod, a spring docking shaft, a storage seat, a connecting guide rod, a track plate and a second electric hydraulic rod. The side end of the storage seat is rotatably connected via the spring docking shaft. The upper limit of the spring docking shaft is provided with a first electric hydraulic rod. The upper end of the first electric hydraulic rod is fixedly connected to the fixed plate. The side end of the fixed plate is fixedly connected to the track plate, and the rear end of the fixed plate is installed with a second electric hydraulic rod. The second electric hydraulic rod controls the connecting guide rod to slide on the track plate. The side end of the connecting guide rod is fixedly connected to the push rod.

[0007] Specifically, the immersion etching component includes a guide seat, a connecting matching seat, a sealing guide seat, a liquid storage seat and a guide control seat. The lower end of the sealing guide seat is fixedly connected to the liquid storage seat, and a connecting matching seat is installed on the sealing guide seat. The side end of the connecting matching seat is connected to the guide seat, and the lower end of the liquid storage seat is provided with a guide control seat, and the liquid storage seat is connected to the guide control seat.

[0008] Specifically, the cleaning component includes an in-place detector, a mounting support plate, a fixed side guard plate, a limiting mechanism and a cleaning mechanism. The upper end of the fixed side guard plate is fixedly connected to the mounting support plate, the mounting support plate is installed with an in-place detector, the center limit of the mounting support plate is provided with a cleaning mechanism, and the fixed side guard plate is fixedly installed with a limiting mechanism.

[0009] Specifically, the limiting mechanism includes a fixed partition, a front guide plate, a control seat, a hydraulically controlled telescopic rod and a limit cross frame. The front end of the fixed partition is fixedly connected to the front guide plate, and the control seat is installed on the front guide plate. The control seat controls the telescopic adjustment of the hydraulically controlled telescopic rod, and the lower end of the hydraulically controlled telescopic rod is limited by a limit cross frame.

[0010] Specifically, the cleaning mechanism includes a matching limiting fixed seat, a positioning hinge seat, an electric telescopic control connecting rod, a pushing hinge seat, an installation adapter plate and a grinding plate. The lower end of the matching limiting fixed seat is telescopically connected to the pushing hinge seat, the side end of the pushing hinge seat is hingedly provided with an electric telescopic control connecting rod, and the electric telescopic control connecting rod is hingedly provided with a positioning hinge seat.

[0011] Specifically, a mounting adapter plate is installed at the lower end of the push hinge seat, and a grinding plate is rotatably connected to the lower end of the mounting adapter plate.

[0012] Specifically, the matching limiting fixing seat is fixed to the center limit of the mounting support plate, the fixed partition is fixedly connected to the fixed side guard plate, the control seat controls the height of the limiting cross frame by hydraulically controlling the telescopic rod, and the positioning hinge seat is fixedly connected to the fixed side guard plate.

[0013] Specifically, the second electric hydraulic rod changes the lateral position of the push rod by connecting the guide rod, and the push rod contacts the storage seat, pushing the storage seat to rotate and adjust through the spring docking shaft, the lower end of the fixed plate is fixedly connected to the sealing guide seat, and the supporting bracket is fixedly connected to the side end of the sealing guide seat.

[0014] A method for using a PCB circuit board etching processing device comprises the following steps: S1. First, the etching liquid is introduced through the connecting seat, and the connecting seat is connected with the guide seat, so that the etching liquid reaches the inside of the liquid storage seat through the sealing guide seat, and the PCB board is placed inside the storage seat, and the first electric hydraulic rod is controlled to extend, so that the PCB board is lowered into the liquid storage seat, and the etching work is completed in the liquid storage seat; S2, then, the first electric hydraulic rod contracts, so that the storage seat is adjusted in height, driving the PCB board to adjust in height, waiting for a certain period of time, so that the surface of the PCB board is dry, and then the second electric hydraulic rod controls the extension adjustment of the connecting guide rod, and the connecting guide rod slides on the upper limit of the track plate, which can change the position of the push rod, and at the same time, the push rod can contact the storage seat, pushing the storage seat to rotate around the spring docking axis; S3, then, the first mechanical arm and the second mechanical arm work to place the PCB board in the storage seat on the transmission seat, and the support bracket controls the transmission of the transmission seat. When it reaches the lower end of the in-place detector, the position detection work can be performed. At this time, the transmission seat stops the transmission, and the control seat works at the same time, and the position of the limit horizontal frame is controlled by the hydraulic control telescopic rod, so that the limit horizontal frame and the PCB board are contacted and limited; S4. Finally, the cleaning mechanism works, and the electric telescopic control link in the cleaning mechanism extends, so that the push hinge seat extends on the matching limiting fixed seat, changing the position of the installation adapter plate and the grinding sheet. The lower end of the electric telescopic control link is hinged to the push hinge seat, and an independent motor is provided in the installation adapter plate, which can control the rotation of the grinding sheet, so as to perform surface cleaning and polishing of the PCB board through the grinding sheet.

[0015] Beneficial effects of the present invention: First, the present invention facilitates etching work through the structural setting of the etching processing structure. The connecting matching seat can introduce etching liquid through the guide seat, so that the etching liquid is stored in the liquid storage seat, and can be guided through the guide control seat in the later stage. At the same time, the setting of the adjustment component is controlled to facilitate the limited installation of the PCB board. The PCB board is placed inside the storage seat, and the position of the PCB board is changed through the telescopic adjustment of the first electric hydraulic rod. In the later stage, the position of the connecting guide rod can be controlled by the second electric hydraulic rod, so that the push rod pushes the storage seat, and the storage seat is rotated to a certain extent through the spring docking shaft, which is convenient for cooperating with the first mechanical arm and the second mechanical arm to carry out the work of taking the PCB board.

[0016] Secondly, the present invention facilitates secondary processing of PCB boards through the structural setting of the surface cleaning structure. The PCB boards can be transmitted to the lower end of the cleaning component through the transmission seat. When the in-place detector detects the PCB board, the control seat can control the extension of the hydraulic control telescopic rod and the limit cross frame to limit the PCB board. After that, the electric telescopic control connecting rod in the cleaning mechanism is extended to push the hinge seat to extend, thereby changing the position of the installation adapter disk and the polishing sheet. At the same time, the polishing sheet is driven by an independent motor to clean and polish the surface of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body in the present invention; Figure 2 It is a three-dimensional side view of the main body of the present invention; Figure 3 It is a three-dimensional rear view of the main body of the present invention; Figure 4 It is a three-dimensional structural diagram of the etching processing structure in the present invention; Figure 5 It is a disassembled diagram of the etching processing structure in the present invention; Figure 6 A three-dimensional diagram of the control and adjustment component of the present invention; Figure 7 A front-view stereoscopic structural diagram of an immersion-etched component in the present invention; Figure 8 It is a front perspective three-dimensional structural diagram of the surface cleaning structure of the present invention; Fig. 9 It is a disassembled diagram of the surface cleaning structure in the present invention; Fig.10 This is a disassembled diagram of the cleaning components in the present invention; Fig.11 It is a front-view stereoscopic structural diagram of the limiting mechanism of the present invention; Fig.12 It is a three-dimensional structural diagram of the cleaning mechanism in the present invention from the front perspective.

[0019] In the figure: 1-etching processing structure, 2-first mechanical arm, 3-second mechanical arm, 4-surface cleaning structure, 5-control adjustment component, 6-immersion etching component, 7-fixed plate, 8-first electric hydraulic rod, 9-push rod, 10-spring docking shaft, 11-storage seat, 12-connecting guide rod, 13-track plate, 14-second electric hydraulic rod, 15-guide seat, 16-connecting matching seat, 17-sealing guide seat, 18-liquid storage seat, 19-guide control seat, 20-transmission seat, 21 -Support bracket, 22-fixed bracket, 23-cleaning component, 24-fixed stand, 25-in-place detector, 26-installation support plate, 27-fixed side guard plate, 28-limiting mechanism, 29-cleaning mechanism, 30-fixed partition, 31-front guide plate, 32-control seat, 33-hydraulic control telescopic rod, 34-limiting cross frame, 35-matching limiting fixed seat, 36-positioning hinge seat, 37-electric telescopic control connecting rod, 38-pushing hinge seat, 39-installation adapter plate, 40-grinding sheet. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not 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 should fall within the scope of protection of the present application.

[0021] The present invention is further described below in conjunction with the accompanying drawings. Example

[0022] like Figure 1-12 As shown, a PCB circuit board etching processing equipment and method of the present invention comprises an etching processing structure 1, a first mechanical arm 2, a second mechanical arm 3 and a surface cleaning structure 4, the side end of the etching processing structure 1 is fixedly provided with the surface cleaning structure 4, the first mechanical arm 2 and the second mechanical arm 3 are provided between the etching processing structure 1 and the surface cleaning structure 4, and the first mechanical arm 2 and the second mechanical arm 3 are symmetrically arranged; The etching processing structure 1 includes a control and adjustment component 5 and an immersion etching component 6. The upper end of the immersion etching component 6 is fixedly connected with the control and adjustment component 5. The control and adjustment component 5 is used for flipping control of the storage seat 11. The immersion etching component 6 is used for etching the PCB circuit board in the storage seat 11. The surface cleaning structure 4 includes a transmission seat 20, a supporting bracket 21, a fixed bracket 22, a cleaning component 23 and a fixed stand 24. The upper end of the fixed stand 24 is fixedly connected to the supporting bracket 21, the supporting bracket 21 is drivingly connected to the transmission seat 20, the front end of the supporting bracket 21 is fixedly connected to the fixed bracket 22, and the upper end of the fixed bracket 22 is fixedly installed with a cleaning component 23, which is used for surface cleaning of the PCB circuit board.

[0023] The control and adjustment component 5 includes a fixed plate 7, a first electro-hydraulic rod 8, a push rod 9, a spring docking shaft 10, a storage seat 11, a connecting guide rod 12, a track plate 13 and a second electro-hydraulic rod 14. The side end of the storage seat 11 is rotatably connected through the spring docking shaft 10. The upper limit of the spring docking shaft 10 is provided with a first electro-hydraulic rod 8. The upper end of the first electro-hydraulic rod 8 is fixedly connected to the fixed plate 7. The side end of the fixed plate 7 is fixedly connected to the track plate 13, and the rear end of the fixed plate 7 is installed with a second electro-hydraulic rod 14. The second electro-hydraulic rod 14 controls the connecting guide rod 12 to slide on the track plate 13. The connecting guide rod 12 The side end is fixedly connected with a push rod 9, and the etching liquid is introduced through the connecting matching seat 16. The connecting matching seat 16 is connected with the guide seat 15, so that the etching liquid reaches the inside of the liquid storage seat 18 through the sealing guide seat 17. At the same time, the PCB board is placed in the storage seat 11. Through the control of the first electric hydraulic rod 8, it is extended, so that the PCB board is lowered to the inside of the liquid storage seat 18, and the etching work is completed in the liquid storage seat 18. After the etching is completed, the first electric hydraulic rod 8 is contracted, so that the storage seat 11 is height adjusted, driving the PCB board to adjust the height, waiting for a certain period of time, so that the surface of the PCB board is dry.

[0024] The immersion etching component 6 includes a guide seat 15, a connecting matching seat 16, a sealing guide seat 17, a liquid storage seat 18 and a guide control seat 19. The lower end of the sealing guide seat 17 is fixedly connected to the liquid storage seat 18, and the connecting matching seat 16 is installed on the sealing guide seat 17. The side end of the connecting matching seat 16 is connected to the guide seat 15. The lower end of the liquid storage seat 18 is provided with a guide control seat 19, and the liquid storage seat 18 is connected to the guide control seat 19.

[0025] The cleaning component 23 includes an in-place detector 25, a mounting support plate 26, a fixed side guard plate 27, a limiting mechanism 28 and a cleaning mechanism 29. The upper end of the fixed side guard plate 27 is fixedly connected with the mounting support plate 26, and the in-place detector 25 is installed on the mounting support plate 26. The central limit of the mounting support plate 26 is provided with a cleaning mechanism 29, and the limiting mechanism 28 is fixedly installed on the fixed side guard plate 27. The structural setting of the etching processing structure 1 facilitates etching work, and the etching liquid can be introduced into the connecting seat 16 through the guide seat 15, so that the etching liquid is stored in the liquid storage seat 18. In the later stage, the guide control seat 19 can be used for guiding, and the setting of the adjusting component 5 can be controlled at the same time, so as to facilitate the limited installation of the PCB board. The PCB board is placed inside the storage seat 11, and the position of the PCB board is changed by the telescopic adjustment of the first electric hydraulic rod 8. In the later stage, the position of the connecting guide rod 12 can be controlled by the second electric hydraulic rod 14, so that the push rod 9 pushes the storage seat 11, and the storage seat 11 is rotated to a certain extent through the spring docking shaft 10, which is convenient for cooperating with the first mechanical arm 2 and the second mechanical arm 3 to take the PCB board.

[0026] The limiting mechanism 28 includes a fixed partition 30, a front guide plate 31, a control seat 32, a hydraulically controlled telescopic rod 33 and a limit cross frame 34. The front end of the fixed partition 30 is fixedly connected to the front guide plate 31, and the control seat 32 is installed on the front guide plate 31. The control seat 32 controls the telescopic adjustment of the hydraulically controlled telescopic rod 33, and the lower end of the hydraulically controlled telescopic rod 33 is limited by a limit cross frame 34.

[0027] The cleaning mechanism 29 includes a matching limiting fixed seat 35, a positioning hinge seat 36, an electric telescopic control link 37, a pushing hinge seat 38, an installation adapter plate 39 and a grinding plate 40. The lower end of the matching limiting fixed seat 35 is telescopically connected to the pushing hinge seat 38, and the side end of the pushing hinge seat 38 is hingedly provided with an electric telescopic control link 37, and the electric telescopic control link 37 is hingedly provided with a positioning hinge seat 36.

[0028] The lower end of the push hinge seat 38 is installed with an adapter plate 39, and the lower end of the adapter plate 39 is rotatably connected with a grinding sheet 40. The first mechanical arm 2 and the second mechanical arm 3 work to place the PCB board in the storage seat 11 on the transmission seat 20. The support bracket 21 controls the transmission of the transmission seat 20. When it reaches the lower end of the in-place detector 25, the position detection work can be performed. At this time, the transmission seat 20 stops transmitting, and the control seat 32 works at the same time. The position of the limit horizontal frame 34 is controlled by the hydraulic control telescopic rod 33. The limiting cross frame 34 is brought into contact and limited with the PCB board, and then the cleaning mechanism 29 starts working. The electric telescopic control link 37 in the cleaning mechanism 29 is extended, so that the push hinge seat 38 is extended on the matching limiting fixed seat 35, and the position of the installation adapter plate 39 and the grinding sheet 40 is changed. The lower end of the electric telescopic control link 37 is hinged to the push hinge seat 38, and an independent motor is provided in the installation adapter plate 39, which can control the rotation of the grinding sheet 40, so that the surface of the PCB board is cleaned and polished by the grinding sheet 40.

[0029] The limiting fixed seat 35 is fixed to the center of the mounting support plate 26 , the fixed partition 30 is fixedly connected to the fixed side guard plate 27 , the control seat 32 controls the height of the limiting cross frame 34 through the hydraulic control telescopic rod 33 , and the positioning hinge seat 36 is fixedly connected to the fixed side guard plate 27 .

[0030] The second electric hydraulic rod 14 changes the lateral position of the push rod 9 by connecting the guide rod 12, and the push rod 9 contacts the storage seat 11, pushing the storage seat 11 to rotate and adjust through the spring docking shaft 10, the lower end of the fixed plate 7 is fixedly connected to the sealing guide seat 17, and the support bracket 21 is fixedly connected to the side end of the sealing guide seat 17.

[0031] The working principle is as follows: when in use, the etching liquid is first introduced through the connecting matching seat 16, and the connecting matching seat 16 is connected with the guide seat 15, so that the etching liquid reaches the inside of the liquid storage seat 18 through the sealing guide seat 17, and the PCB board is placed in the storage seat 11 at the same time, and the first electric hydraulic rod 8 is controlled to extend, so that the PCB board is lowered to the inside of the liquid storage seat 18, and the etching work is completed in the liquid storage seat 18. After the etching is completed, the first electric hydraulic rod 8 is contracted, so that the storage seat 11 is height adjusted, and the PCB board is driven to adjust the height, and wait for a certain period of time to make the surface of the PCB board dry, and then the second electric hydraulic rod 14 controls the extension adjustment of the connecting guide rod 12, and the connecting guide rod 12 slides on the upper limit of the track plate 13, which can change the position of the push rod 9, and the push rod 9 can contact the storage seat 11, and push the storage seat 11 to rotate around the spring docking shaft 10, and then the first mechanical arm 2. The second robotic arm 3 works to place the PCB board in the storage seat 11 on the transmission seat 20. The support bracket 21 controls the transmission of the transmission seat 20. When it reaches the lower end of the in-place detector 25, the position detection work can be performed. At this time, the transmission seat 20 stops transmitting, and the control seat 32 works at the same time. The position of the limit cross frame 34 is controlled by the hydraulic control telescopic rod 33, so that the limit cross frame 34 and the PCB board are contacted and limited. Then the cleaning mechanism 29 works, and the electric telescopic control connecting rod 37 in the cleaning mechanism 29 is extended, so that the push hinge seat 38 is extended on the matching limit fixing seat 35, and the position of the installation adapter plate 39 and the polishing plate 40 is changed. The lower end of the electric telescopic control connecting rod 37 is hingedly set with the push hinge seat 38. The installation adapter plate 39 is provided with an independent motor, which can control the rotation of the polishing plate 40, so that the surface of the PCB board is cleaned and polished by the polishing plate 40 to complete the work.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PCB circuit board etching processing equipment, characterized in that: The invention comprises an etching processing structure (1), a first mechanical arm (2), a second mechanical arm (3) and a surface cleaning structure (4), wherein the surface cleaning structure (4) is fixedly provided at a side end of the etching processing structure (1), and the first mechanical arm (2) and the second mechanical arm (3) are provided between the etching processing structure (1) and the surface cleaning structure (4), and the first mechanical arm (2) and the second mechanical arm (3) are symmetrically arranged; The etching processing structure (1) comprises a control and adjustment component (5) and an immersion etching component (6); the upper end of the immersion etching component (6) is fixedly connected to the control and adjustment component (5); the control and adjustment component (5) is used for flipping control of the storage seat (11); and the immersion etching component (6) is used for etching a PCB circuit board in the storage seat (11); The surface cleaning structure (4) comprises a transmission seat (20), a support bracket (21), a fixed bracket (22), a cleaning component (23) and a fixed stand (24); the upper end of the fixed stand (24) is fixedly connected to the support bracket (21); the transmission seat (20) is drivingly connected to the support bracket (21); the front end of the support bracket (21) is fixedly connected to the fixed bracket (22); the upper end of the fixed bracket (22) is fixedly mounted with a cleaning component (23); the cleaning component (23) is used for surface cleaning of a PCB circuit board.

2. A PCB circuit board etching processing equipment according to claim 1, characterized in that: The control and adjustment component (5) comprises a fixed plate (7), a first electric hydraulic rod (8), a push rod (9), a spring docking shaft (10), a storage seat (11), a connecting guide rod (12), a track plate (13) and a second electric hydraulic rod (14); the side end of the storage seat (11) is rotatably connected via the spring docking shaft (10); the upper limit position of the spring docking shaft (10) is provided with a first electric hydraulic rod (8); the upper end of the first electric hydraulic rod (8) is fixedly connected to the fixed plate (7); the side end of the fixed plate (7) is fixedly connected to the track plate (13); and the rear end of the fixed plate (7) is mounted with a second electric hydraulic rod (14); the second electric hydraulic rod (14) controls the connecting guide rod (12) to slide on the track plate (13); and the side end of the connecting guide rod (12) is fixedly connected to the push rod (9).

3. A PCB circuit board etching processing equipment according to claim 2, characterized in that: The immersion etching component (6) comprises a guide seat (15), a connecting matching seat (16), a sealing guide seat (17), a liquid storage seat (18) and a guide and discharge control seat (19); the lower end of the sealing guide seat (17) is fixedly connected to the liquid storage seat (18); the connecting matching seat (16) is installed on the sealing guide seat (17); the side end of the connecting matching seat (16) is connected to the guide seat (15); the lower end of the liquid storage seat (18) is provided with a guide and discharge control seat (19); the liquid storage seat (18) is connected to the guide and discharge control seat (19).

4. A PCB circuit board etching processing equipment according to claim 3, characterized in that: The cleaning component (23) comprises an in-place detector (25), a mounting support plate (26), a fixed side guard plate (27), a limiting mechanism (28) and a cleaning mechanism (29); the upper end of the fixed side guard plate (27) is fixedly connected to the mounting support plate (26); the mounting support plate (26) is mounted on the in-place detector (25); the central limit of the mounting support plate (26) is provided with a cleaning mechanism (29); and the limiting mechanism (28) is fixedly mounted on the fixed side guard plate (27).

5. A PCB circuit board etching processing equipment according to claim 4, characterized in that: The limiting mechanism (28) comprises a fixed partition (30), a front guide plate (31), a control seat (32), a hydraulically controlled telescopic rod (33) and a limit cross frame (34); the front end of the fixed partition (30) is fixedly connected to the front guide plate (31); the control seat (32) is mounted on the front guide plate (31); the control seat (32) controls the telescopic adjustment of the hydraulically controlled telescopic rod (33); and the lower end of the hydraulically controlled telescopic rod (33) is limited by a limit cross frame (34).

6. A PCB circuit board etching processing equipment according to claim 5, characterized in that: The cleaning mechanism (29) comprises a matching limiting fixed seat (35), a positioning hinge seat (36), an electric telescopic control link (37), a pushing hinge seat (38), an installation adapter plate (39) and a grinding sheet (40); the lower end of the matching limiting fixed seat (35) is telescopically connected to the pushing hinge seat (38); the side end of the pushing hinge seat (38) is hingedly provided with an electric telescopic control link (37); and the positioning hinge seat (36) is hingedly provided on the electric telescopic control link (37).

7. A PCB circuit board etching processing equipment according to claim 6, characterized in that: The lower end of the push hinge seat (38) is mounted with a mounting adapter plate (39), and the lower end of the mounting adapter plate (39) is rotatably connected with a grinding plate (40).

8. A PCB circuit board etching processing equipment according to claim 7, characterized in that: The matching limiting fixed seat (35) is fixed to the center of the mounting support plate (26), the fixed partition plate (30) is fixedly connected to the fixed side guard plate (27), the control seat (32) controls the height of the limiting cross frame (34) by hydraulically controlling the telescopic rod (33), and the positioning hinge seat (36) is fixedly connected to the fixed side guard plate (27).

9. A PCB circuit board etching processing equipment according to claim 8, characterized in that: The second electric hydraulic rod (14) changes the lateral position of the push rod (9) by connecting the guide rod (12), and the push rod (9) contacts the storage seat (11), pushing the storage seat (11) to rotate and adjust through the spring docking shaft (10), the lower end of the fixed plate (7) is fixedly connected to the sealing guide seat (17), and the supporting bracket (21) is fixedly connected to the side end of the sealing guide seat (17).

10. A method for using a PCB circuit board etching processing device, using the PCB circuit board etching processing device according to claim 9, characterized in that: The following steps are involved: S1. First, the etching liquid is introduced through the connecting matching seat (16), and the connecting matching seat (16) is connected with the guide seat (15), so that the etching liquid reaches the inside of the liquid storage seat (18) through the sealing guide seat (17), and at the same time, the PCB board is placed inside the storage seat (11), and the first electric hydraulic rod (8) is controlled to extend, so that the PCB board descends into the inside of the liquid storage seat (18), and the etching work is completed in the liquid storage seat (18); S2, after which the first electric hydraulic rod (8) contracts, so that the storage seat (11) is adjusted in height, driving the PCB board to adjust in height, and waiting for a certain period of time so that the surface of the PCB board is dry, and then the second electric hydraulic rod (14) controls the connecting guide rod (12) to extend and adjust, and the connecting guide rod (12) slides on the upper limit position of the track plate (13), which can change the position of the push rod (9), and at the same time the push rod (9) can contact the storage seat (11), pushing the storage seat (11) to rotate around the spring docking shaft (10); S3, after that, the first mechanical arm (2) and the second mechanical arm (3) work to place the PCB board in the storage seat (11) on the transmission seat (20), and the support bracket (21) controls the transmission of the transmission seat (20). When the transmission reaches the lower end of the position detector (25), the position detection work can be carried out. At this time, the transmission seat (20) stops the transmission, and the control seat (32) works to control the position of the limit horizontal frame (34) through the hydraulic control telescopic rod (33), so that the limit horizontal frame (34) and the PCB board are in contact and limited; S4. Finally, the cleaning mechanism (29) works, and the electric telescopic control link (37) in the cleaning mechanism (29) extends, so that the push hinge seat (38) extends on the matching limiting fixed seat (35), and the positions of the mounting adapter plate (39) and the grinding sheet (40) are changed. The lower end of the electric telescopic control link (37) is hingedly connected to the push hinge seat (38), and the mounting adapter plate (39) is provided with an independent motor, which can control the rotation of the grinding sheet (40), so that the surface of the PCB board is cleaned and polished by the grinding sheet (40).

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