A method for processing a printed circuit board

Abstract

The invention discloses a processing method for a printed circuit board, relates to the technical field of printed circuit board production, and specifically comprises the following steps: step one: according to the requirements of engineering data, cutting a large sheet of board that meets the requirements into small pieces to produce board parts; step two: cutting a PCB substrate into a production size, cleaning the surface of the PCB substrate, and placing the PCB substrate into a processing device for pickling to remove surface pollutants, and attaching a dry film to the surface layer of the PCB substrate to prepare for subsequent image transfer; in the invention, when an extension column moves obliquely upward, the extension column will conflict with a plurality of arc-shaped convex strips, thereby causing a C-shaped frame to vibrate, so as to achieve the purpose of improving the draining effect, and the dripping pickling liquid can be received by a liquid receiving box; when the extension column moves obliquely upward, the extension column will conflict with a plurality of arc-shaped convex strips, thereby causing the C-shaped frame to vibrate, so as to achieve the purpose of improving the draining effect.

Description

Technical Field

[0001] The invention relates to the technical field of printed circuit board production, in particular to a method for processing a printed circuit board. Background Art

[0002] The purpose of pickling in the production process of PCB boards is to remove oxides and impurities on the surface of the copper skin and improve the adhesion and tinning properties of the copper layer. Specifically, PCB boards need to be pickled before electroplating, because after copper is oxidized, the best way to treat its oxides is to dissolve them with acid, which is fast and low-cost. In addition, in the production process of PCB boards, acid must be used in the pre-treatment of each process, because after copper is oxidized, the best way to treat its oxides is to dissolve them with acid, which is fast and low-cost.

[0003] After searching, a Chinese patent with publication number CN211352647U discloses a computer circuit board pickling and forming device, which improves the cleaning speed of the acid solution and improves the use effect of the device; it includes multiple groups of pads, multiple groups of legs, a pickling body, a first support plate, a circulating water pump, a first connecting pipe, a second connecting pipe, a three-way pipe, a third connecting pipe, a fourth connecting pipe and a fifth connecting pipe, the top of the pad is connected to the bottom end of the leg, the top of the leg is connected to the bottom end of the pickling body, and a chamber is arranged inside the pickling body, the first support plate is fixed to the right bottom of the pickling body, the circulating water pump is fixed on the first support plate, and the circulating water pump is connected to the pickling body through the first connecting pipe, and one end of the second connecting pipe is connected to the circulating water pump, and the other end is connected to the three-way pipe.

[0004] However, the above invention has the following shortcomings: the above patent only places the PCB board on the placement board. Since it is not effectively spaced and fixed, it is easy for multiple PCB boards to be overlapped during the actual pickling process, which has an adverse effect on the pickling effect of the PCB board; in addition, after the PCB board is pickled, more pickling liquid will adhere to its surface, and the natural drainage time is long, which affects the processing efficiency, so there are limitations. Summary of the invention

[0005] The object of the present invention is to provide a method for processing a printed circuit board to solve the problems raised in the above background technology.

[0006] The technical solution of the present invention is: a method for processing a printed circuit board, which specifically comprises the following steps;

[0007] Step 1: According to the requirements of the engineering data, cut the large sheet of board that meets the requirements into small pieces to produce the board;

[0008] Step 2: Cut the PCB substrate into production size, clean the surface of the PCB substrate, put the PCB substrate into the processing equipment for pickling, remove surface contaminants, and stick the dry film on the surface of the PCB substrate to prepare for subsequent image transfer;

[0009] Step 3: Use an exposure device to expose the film-attached substrate with ultraviolet light, so as to transfer the image of the substrate to the dry film, and then develop, etch, and remove the film on the exposed substrate to complete the production of the inner layer board;

[0010] Step 4: Cut the PP into small sheets and normal sizes to fit the inner layer sheets with the corresponding PP sheets. Finally, stack and press multiple inner layer sheets.

[0011] The processing equipment in step 2 includes a base, a pickling box is fixedly installed on the top outer wall of the base, and track groove plates are fixedly installed on the outer walls of both sides of the pickling box, the bottom end of the track groove plate is a vertical structure, and the top of the track groove plate is inclined, a U-shaped frame is provided at the opening of the pickling box, and extension columns are fixedly installed on both ends of the U-shaped frame, the extension columns are slidably matched with the track groove plates, a plurality of suspension components are provided on the U-shaped frame, and lifting components are installed on both sides of the pickling box, and support frames are fixedly installed on the top outer wall of the base near both sides of the pickling box, and a liquid receiving box is fixedly installed on the top of the two support frames, and a connecting component is provided between the liquid receiving box and the pickling box;

[0012] A crossbeam is fixedly installed at one end of the U-shaped frame near the top, reinforcing ribs are fixedly installed between the two sides of the two track groove plates and the outer wall of the base, and a triangular structure is formed between each reinforcing rib and the track groove plate, and a column is fixedly installed between the top of the track groove plate and the base;

[0013] Each of the suspension components comprises a C-shaped frame, and one side of the C-shaped frame is rotatably connected to a movable side plate via a movable shaft, and a locking bolt is threadedly connected between one end of the movable side plate close to the bottom and the C-shaped frame;

[0014] A pair of end tubes are fixedly installed at the top of each C-shaped frame, and guide columns are slidably installed in the end tubes. A push rod is fixedly installed on the top of each pair of guide columns, and a slide block is fixedly installed on the middle end of the top outer wall of the push rod. The slide block is fixedly sleeved on the outer wall of the crossbeam. A vibration spring is sleeved on the outer side of each guide column, and the two ends of the vibration spring are fixedly connected to the push rod and the end tube respectively.

[0015] A plurality of top frame plates and a bottom card frame are fixedly installed on the inner wall of one side of each C-shaped frame away from the movable side plate, and a plurality of baffle plates 1 and 2 are fixedly installed on the opposite side of the C-shaped frame and the movable side plate, respectively, a guide tube is fixedly installed near the corner of the bottom outer wall of each top frame plate, and a positioning column is slidably installed inside each guide tube, a pressure frame is fixedly installed on the bottom end of each group of positioning columns, and a tension spring is arranged on the outer side of each positioning column, and the two ends of the tension spring are fixedly connected to the top frame plate and the pressure frame respectively;

[0016] Extended hole blocks are fixedly arranged on both sides of each of the pressing frames, side blocks are fixedly installed on both sides of the movable side plates, and ropes are fixedly connected between the side blocks and the extended hole blocks located on the same side.

[0017] Preferably, a shaft is rotatably mounted inside the pickling box, a cam roller is fixedly mounted on the outer peripheral wall of the shaft, a drive motor is fixedly mounted on one side of the pickling box, and the output shaft of the drive motor is fixedly connected to the shaft.

[0018] Preferably, the connecting component includes a through groove opened between the pickling box and the liquid receiving box, a slot is opened on the side of the liquid receiving box close to the through groove, an end plate is fixedly installed on one side of the pickling box, and an electric telescopic rod is fixedly installed on the bottom outer wall of the end plate, a sealing plug plate adapted to the slot is fixedly installed on the end of the extension rod of the electric telescopic rod, and an inclined plate is fixedly installed on the inner bottom of the liquid receiving box.

[0019] Preferably, each of the rail groove plates is fixedly provided with a plurality of equally spaced arc-shaped convex strips at one end near the top, the lifting assembly comprises two pairs of mounting blocks fixedly installed on the outer wall of the pickling box, and hydraulic rods are fixedly installed on the top of the mounting blocks, a sliding frame is fixedly installed on the top of each hydraulic rod, and a plurality of circular frames slidably connected to the sliding frames are fixedly installed on both sides of the cross beam.

[0020] Preferably, one side of the pickling box is fixedly connected to a liquid exchange valve pipe, a pair of annular cylinders coaxially arranged with the shaft rod are provided inside the pickling box, and a plurality of connecting blocks are fixedly connected between one side of the annular cylinder and the pickling box, and a plurality of paddles are fixedly installed on one end of the outer peripheral wall of the shaft rod close to the annular cylinder.

[0021] The present invention provides a method for processing a printed circuit board by improving the method, which has the following improvements and advantages compared with the prior art:

[0022] First, the present invention controls multiple hydraulic rods, and can push the circular frame and the crossbeam to move vertically through the slider. At the same time, the slide frame can slide relatively with the circular frame, so as to avoid interference when the suspension component moves obliquely upward; at the same time, when the extension column moves obliquely upward, the extension column will conflict with multiple arc-shaped convex strips, so that the C-shaped frame will shake, so as to achieve the purpose of improving the drainage effect, and the dripping pickling liquid can be collected by the liquid receiving box;

[0023] Second, when the driving motor of the present invention is running, it can drive the shaft to rotate; at the same time, the shaft can drive the cam roller to rotate. At this time, the cam roller can contact the bottom of the C-frame at a fixed frequency, and cooperate with the vibration spring to make the C-frame vibrate up and down, so that the PCB board is fully in contact with the pickling liquid; when the shaft rotates, it can drive the blades to rotate and agitate the pickling liquid, thereby accelerating the flow of the pickling liquid, so as to achieve the purpose of further improving the contact degree between the acid liquid and the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the process principle of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall first-view stereoscopic structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the overall second viewing angle stereoscopic structure of the present invention;

[0028] Figure 4 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0029] Figure 5 It is a schematic diagram of the cutaway structure of the pickling box of the present invention;

[0030] Figure 6 It is a schematic diagram of the cross-section structure of the liquid receiving box of the present invention;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the C-type frame of the present invention;

[0032] Figure 8 It is a schematic diagram of the top frame plate and the bottom card frame structure of the present invention;

[0033] Fig. 9 It is a schematic diagram of the local structure of the C-frame of the present invention.

[0034] Reference numerals:

[0035] 1. Base; 2. Pickling box; 3. Liquid receiving box; 31. Support frame; 32. Inclined plate; 4. Driving motor; 41. Shaft; 42. Cam roller; 43. Paddle; 44. Annular cylinder; 45. Connecting block; 5. Column; 51. Track plate; 52. Reinforcement rib; 53. Arc convex strip; 6. Mounting block; 61. Hydraulic rod; 62. Sliding frame; 63. Reciprocating frame; 7. U-shaped frame; 71. Crossbeam; 72. Extension column; 8. C-shaped frame; 81. Baffle 1; 9. , end tube; 91, guide column; 92, push rod; 93, slide block; 94, vibration spring; 10, movable side plate; 101, baffle plate 2; 11, locking bolt; 12, top frame plate; 13, guide tube; 14, positioning column; 15, tensioning spring; 16, bottom card frame; 17, pressure frame; 18, extension hole block; 19, side block; 20, rope; 21, end plate; 22, electric telescopic rod; 23, sealing plug plate; 24, through groove; 25, liquid exchange valve tube. DETAILED DESCRIPTION

[0036] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The present invention provides a method for processing a printed circuit board by improvement. The technical solution of the present invention is:

[0038] like Figures 1 to 9 As shown, an embodiment of the present invention provides a method for processing a printed circuit board, which specifically includes the following steps:

[0039] Step 1: According to the requirements of the engineering data, cut the large sheet of board that meets the requirements into small pieces to produce the board;

[0040] Step 2: Cut the PCB substrate into production size, clean the surface of the PCB substrate, put the PCB substrate into the processing equipment for pickling, remove surface contaminants, and stick the dry film on the surface of the PCB substrate to prepare for subsequent image transfer;

[0041] Step 3: Use an exposure device to expose the film-attached substrate with ultraviolet light, so as to transfer the image of the substrate to the dry film, and then develop, etch, and remove the film on the exposed substrate to complete the production of the inner layer board;

[0042] Step 4: Cut the PP into small sheets and normal sizes to fit the inner layer sheets with the corresponding PP sheets. Finally, stack and press multiple inner layer sheets.

[0043] The processing equipment in step 2 includes a base 1, and a pickling box 2 is fixedly installed on the top outer wall of the base 1. In order to guide the movement of the subsequent suspension assembly, track groove plates 51 are fixedly installed on the outer walls of both sides of the pickling box 2. The bottom end of the track groove plate 51 is a vertical structure, and the top of the track groove plate 51 is inclined. A U-shaped frame 7 is provided at the opening of the pickling box 2, and extension columns 72 are fixedly installed at both ends of the U-shaped frame 7. The extension column 72 is slidably matched with the track groove plate 51; specifically, the extension column 72 and the track groove plate The sliding fit of 51 can limit and guide the movement of the U-shaped frame 7; a plurality of suspension components are arranged on the U-shaped frame 7, and lifting components are installed on both sides of the pickling box 2, and the lifting components are used to adjust the vertical height of the suspension components. Support frames 31 are fixedly installed on both sides of the top outer wall of the base 1 close to the pickling box 2, and a liquid receiving box 3 is fixedly installed on the top of the two support frames 31, and a connecting component is arranged between the liquid receiving box 3 and the pickling box 2; wherein the suspension component is used to place the PCB board to be pickled.

[0044] As a further solution of the present invention, a crossbeam 71 is fixedly installed at one end of the U-shaped frame 7 near the top, reinforcing ribs 52 are fixedly installed between the two sides of the two track groove plates 51 and the outer wall of the base 1, and a triangular structure is formed between each reinforcing rib 52 and the track groove plate 51, and a column 5 is fixedly installed between the top of the track groove plate 51 and the base 1; the set column 5 cooperates with the reinforcing rib 52 to provide good support for the two track groove plates 51, thereby ensuring the structural stability of the track groove plates 51.

[0045] Furthermore, each suspension assembly includes a C-frame 8, and one side of the C-frame 8 is rotatably connected to a movable side plate 10 via a movable shaft, and a locking bolt 11 is threadedly connected between one end of the movable side plate 10 close to the bottom and the C-frame 8; the movable side plate 10 is used to be mutually clamped with the C-frame 8, thereby fixing the placed PCB board.

[0046] As a further solution of the present invention, a pair of end tubes 9 are fixedly installed on the top of each C-shaped frame 8, and guide columns 91 are slidably installed in the end tubes 9, a top rod 92 is fixedly installed on the top of each pair of guide columns 91, and a slide block 93 is fixedly installed on the middle end of the top outer wall of the top rod 92, and the slide block 93 is fixedly sleeved on the outer wall of the crossbeam 71, and a vibration spring 94 is sleeved on the outer side of each guide column 91, and the two ends of the vibration spring 94 are respectively fixedly connected to the top rod 92 and the end tube 9.

[0047] Through the above structure, the C-frame 8 is equipped with the slide block 93, which can be suspended on the crossbeam 71; at the same time, the vibration spring 94 is equipped with the C-frame 8, when the suspension assembly moves, and under the cooperative guiding action of the guide column 91 and the end tube 9, the C-frame 8 can generate vertical vibration, which is beneficial for the PCB board to fully contact with the pickling liquid. At the same time, when the C-frame 8 is separated from the pickling liquid, it is also beneficial for the pickling liquid on the PCB board to drain quickly.

[0048] As a further solution of the present invention, a plurality of equally spaced top frame plates 12 and a bottom card frame 16 are fixedly installed on the inner wall of each C-shaped frame 8 away from the movable side plate 10, and a plurality of baffle plates 1 81 and baffle plates 2 101 are fixedly installed on the opposite side of the C-shaped frame 8 and the movable side plate 10, respectively. A guide tube 13 is fixedly installed on the bottom outer wall of each top frame plate 12 near the corner, and a positioning column 14 is slidably installed inside each guide tube 13, and a pressure frame 17 is fixedly installed on the bottom end of each group of positioning columns 14, and a tensioning spring 15 is arranged on the outer side of the positioning column 14, and the two ends of the tensioning spring 15 are fixedly connected to the top frame plate 12 and the pressure frame 17, respectively.

[0049] Furthermore, each pressure frame 17 is fixedly provided with an extension hole block 18 on both sides, and the movable side plate 10 is fixedly installed with a side block 19 on both sides. A rope 20 is fixedly connected between the side block 19 and the extension hole block 18 on the same side.

[0050] Through the above structure, when placing the PCB board, the movable side panel 10 can be flipped upwards first. At this time, the rope 20 can pull the extension hole block 18 and pull and pull the multiple pressing frames 17 upwards; so that a gap is generated between the pressing frame 17 and the bottom card frame 16, thereby facilitating the insertion of the PCB board between the baffle 81 and the bottom card frame 16.

[0051] It should be noted that the tension spring 15 is a rigid spring with a large elastic coefficient, thereby ensuring the fixing effect of the pressure frame 17 on the PCB board; on the other hand, in the present invention, all components immersed in the pickling solution are subjected to anti-corrosion treatment, specifically, they can be electroplated with a tin layer.

[0052] Furthermore, a shaft rod 41 is rotatably installed inside the pickling box 2, a cam roller 42 is fixedly installed on the outer peripheral wall of the shaft rod 41, a driving motor 4 is fixedly installed on one side of the pickling box 2, and the output shaft of the driving motor 4 is fixedly connected to the shaft rod 41; through the above structure, when the driving motor 4 is running, it can drive the shaft rod 41 to rotate; at the same time, the shaft rod 41 can drive the cam roller 42 to rotate, at this time, the cam roller 42 can contact the bottom of the C-frame 8 at a fixed frequency, and cooperate with the vibration spring 94 to make the C-frame 8 vibrate up and down, so that the PCB board is fully in contact with the pickling liquid, so as to achieve the purpose of ensuring the pickling effect.

[0053] As a further solution of the present invention, the connecting component includes a through groove 24 opened between the pickling box 2 and the liquid receiving box 3, a slot is opened on the side of the liquid receiving box 3 close to the through groove 24, an end plate 21 is fixedly installed on one side of the pickling box 2, and an electric telescopic rod 22 is fixedly installed on the bottom outer wall of the end plate 21, a sealing plug plate 23 adapted to the slot is fixedly installed on the extension rod end of the electric telescopic rod 22, and an inclined plate 32 is fixedly installed on the inner bottom of the liquid receiving box 3; through the above structure, the PCB board after pickling can be drained above the liquid receiving box 3, and the dripping pickling liquid can be collected by the liquid receiving box 3; after controlling the electric telescopic rod 22 to retract, the sealing plug plate 23 can be pulled to move upward, so that the pickling liquid passes through the through groove 24 and flows back into the pickling box 2, thereby realizing the recovery of the pickling liquid.

[0054] Furthermore, a plurality of equally spaced arc-shaped convex strips 53 are fixedly provided at one end of each track groove plate 51 near the top, and the lifting assembly includes two pairs of mounting blocks 6 fixedly mounted on the outer wall of the pickling box 2, and a hydraulic rod 61 is fixedly mounted on the top of each mounting block 6, a sliding frame 62 is fixedly mounted on the top of each hydraulic rod 61, and a plurality of circular frames 63 slidably connected to the sliding frame 62 are fixedly mounted on both sides of the crossbeam 71; through the above structure, the plurality of hydraulic rods 61 are controlled, and the circular frames 63 and the crossbeam 71 can be pushed vertically by the sliding frame 62, and at the same time, the sliding frame 62 can slide relative to the circular frame 63, thereby avoiding interference when the suspension assembly moves obliquely upward; at the same time, when the extension column 72 moves obliquely upward, the extension column 72 will conflict with the plurality of arc-shaped convex strips 53, thereby causing the C-shaped frame 8 to shake, so as to achieve the purpose of improving the drainage effect.

[0055] Furthermore, in order to facilitate the liquid replacement process of the pickling box 2, a liquid replacement valve tube 25 is fixedly connected to one side of the pickling box 2, and a pair of annular cylinders 44 coaxially arranged with the shaft 41 are arranged inside the pickling box 2, and a plurality of connecting blocks 45 are fixedly connected between one side of the annular cylinder 44 and the pickling box 2, and a plurality of paddles 43 are fixedly installed on one end of the outer peripheral wall of the shaft 41 close to the annular cylinder 44; when the shaft 41 rotates, it can drive the paddles 43 to rotate and agitate the pickling liquid, thereby accelerating the flow of the pickling liquid, so as to achieve the purpose of further improving the contact degree between the acid liquid and the PCB board.

[0056] The specific working method is: when in use, first flip the movable side plate 10 upwards, at this time the rope 20 pulls the extension hole block 18, and pulls and pulls the multiple pressing frames 17 upwards; so that a gap is generated between the pressing frame 17 and the bottom card frame 16, so that it is convenient to insert the PCB board between the baffle plate 1 81 and the bottom card frame 16, after completion, flip the movable side plate 10 downwards, and use the locking bolt 11 to fix the movable side plate 10; under the action of the baffle plate 2 101 and the tension spring 15, use the pressing frame 17 to press and fix the PCB board; after completion, use the hydraulic rod 61 to withdraw, so that the multiple suspension components are immersed in the pickling liquid;

[0057] After completion, the drive motor 4 is controlled to start running, driving the shaft 41 to rotate; at the same time, the shaft 41 drives the cam roller 42 to rotate. At this time, the cam roller 42 contacts the bottom of the C-frame 8 at a fixed frequency, and cooperates with the vibration spring 94 to make the C-frame 8 vibrate up and down, so that the PCB board is fully in contact with the pickling liquid, so as to achieve the purpose of ensuring the pickling effect; when the shaft 41 rotates, it drives the paddle 43 to rotate and agitates the pickling liquid, thereby accelerating the flow of the pickling liquid, so as to achieve the purpose of further improving the contact degree between the acid liquid and the PCB board;

[0058] After the pickling operation is completed, the multiple hydraulic rods 61 are controlled to push the circular frame 63 and the crossbeam 71 to move vertically through the sliding frame 62. At the same time, the sliding frame 62 and the circular frame 63 slide relative to each other, so as to avoid interference when the suspension component moves obliquely upward; at the same time, when the extension column 72 moves obliquely upward, the extension column 72 will conflict with the multiple arc-shaped convex strips 53, so that the C-shaped frame 8 will vibrate, so as to achieve the purpose of improving the drainage effect; and the dripping pickling liquid can be collected by the liquid receiving box 3; after controlling the electric telescopic rod 22 to retract, the sealing plug plate 23 is pulled upward, so that the pickling liquid passes through the through groove 24 and flows back to the pickling box 2, thereby realizing the recovery of the pickling liquid.

[0059] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for processing a printed circuit board, characterized in that: Specifically include the following steps: Step 1: According to the requirements of the engineering data, cut the large sheet of board that meets the requirements into small pieces to produce the board; Step 2: Cut the PCB substrate into production size, clean the surface of the PCB substrate, put the PCB substrate into the processing equipment for pickling, remove surface contaminants, and stick the dry film on the surface of the PCB substrate to prepare for subsequent image transfer; Step 3: Use an exposure device to expose the film-attached substrate with ultraviolet light, so as to transfer the image of the substrate to the dry film, and then develop, etch, and remove the film on the exposed substrate to complete the production of the inner layer board; Step 4: Cut the PP into small sheets and normal sizes to fit the inner layer sheets with the corresponding PP sheets. Finally, stack and press multiple inner layer sheets. The processing equipment in step 2 comprises a base (1), a pickling box (2) is fixedly mounted on the top outer wall of the base (1), and track groove plates (51) are fixedly mounted on the outer walls of both sides of the pickling box (2), the bottom end of the track groove plate (51) is a vertical structure, and the top of the track groove plate (51) is inclined, a U-shaped frame (7) is arranged at the opening of the pickling box (2), and extension columns (72) are fixedly mounted on both ends of the U-shaped frame (7), and the extension columns (72) are slidably matched with the track groove plate (51), a plurality of suspension components are arranged on the U-shaped frame (7), and lifting components are installed on both sides of the pickling box (2), and support frames (31) are fixedly mounted on both sides of the top outer wall of the base (1) near the pickling box (2), and a liquid receiving box (3) is fixedly mounted on the top ends of the two support frames (31), and a connecting component is arranged between the liquid receiving box (3) and the pickling box (2); A crossbeam (71) is fixedly installed at one end of the U-shaped frame (7) near the top, reinforcing ribs (52) are fixedly installed between the two sides of the two track groove plates (51) and the outer wall of the base (1), and a triangular structure is formed between each reinforcing rib (52) and the track groove plate (51), and a column (5) is fixedly installed between the top of the track groove plate (51) and the base (1); Each of the suspension components comprises a C-shaped frame (8), and one side of the C-shaped frame (8) is rotatably connected to a movable side plate (10) via a movable shaft, and a locking bolt (11) is threadedly connected between one end of the movable side plate (10) close to the bottom and the C-shaped frame (8); A pair of end tubes (9) are fixedly mounted on the top of each C-shaped frame (8), and a guide column (91) is slidably mounted in the end tubes (9), a top rod (92) is fixedly mounted on the top of each pair of guide columns (91), and a slide block (93) is fixedly mounted on the middle end of the top outer wall of the top rod (92), and the slide block (93) is fixedly sleeved on the outer wall of the crossbeam (71), and a vibration spring (94) is sleeved on the outer side of each guide column (91), and the two ends of the vibration spring (94) are respectively fixedly connected to the top rod (92) and the end tube (9); A plurality of top frame plates (12) and a bottom clamping frame (16) are fixedly mounted on the inner wall of a side away from the movable side plate (10) of each C-shaped frame (8), and a plurality of baffle plates 1 (81) and baffle plates 2 (101) are fixedly mounted on the opposite side of the C-shaped frame (8) and the movable side plate (10), respectively, a guide tube (13) is fixedly mounted on the bottom outer wall of each top frame plate (12) near the corner, and a positioning column (14) is slidably mounted inside each guide tube (13), a pressure frame (17) is fixedly mounted on the bottom end of each group of positioning columns (14), and a tensioning spring (15) is arranged on the outer side of each positioning column (14), and the two ends of the tensioning spring (15) are fixedly connected to the top frame plate (12) and the pressure frame (17) respectively; An extended hole block (18) is fixedly provided on both sides of each of the pressing frames (17), a side block (19) is fixedly installed on both sides of the movable side plate (10), and a rope (20) is fixedly connected between the side block (19) and the extended hole block (18) located on the same side.

2. A method for processing a printed circuit board according to claim 1, characterized in that: A shaft (41) is rotatably mounted inside the pickling box (2), a cam roller (42) is fixedly mounted on the outer peripheral wall of the shaft (41), a drive motor (4) is fixedly mounted on one side of the pickling box (2), and an output shaft of the drive motor (4) is fixedly connected to the shaft (41).

3. A method for processing a printed circuit board according to claim 2, characterized in that: The connecting component comprises a through groove (24) provided between the pickling box (2) and the liquid receiving box (3); a slot is provided on a side of the liquid receiving box (3) close to the through groove (24); an end plate (21) is fixedly mounted on one side of the pickling box (2); an electric telescopic rod (22) is fixedly mounted on the bottom outer wall of the end plate (21); a sealing plug plate (23) adapted to the slot is fixedly mounted on the extension rod end of the electric telescopic rod (22); and an inclined plate (32) is fixedly mounted on the inner bottom of the liquid receiving box (3).

4. A method for processing a printed circuit board according to claim 3, characterized in that: A plurality of equally spaced arc-shaped convex strips (53) are fixedly provided at one end of each track groove plate (51) near the top, the lifting assembly comprises two pairs of mounting blocks (6) fixedly mounted on the outer wall of the pickling box (2), and a hydraulic rod (61) is fixedly mounted on the top of each mounting block (6), a sliding frame (62) is fixedly mounted on the top of each hydraulic rod (61), and a plurality of circular frames (63) slidably connected to the sliding frames (62) are fixedly mounted on both sides of the crossbeam (71).

5. A method for processing a printed circuit board according to claim 4, characterized in that: One side of the pickling box (2) is fixedly connected to a liquid exchange valve pipe (25), a pair of annular cylinders (44) coaxially arranged with the shaft (41) are arranged inside the pickling box (2), and a plurality of connecting blocks (45) are fixedly connected between one side of the annular cylinder (44) and the pickling box (2), and a plurality of paddles (43) are fixedly mounted on one end of the outer peripheral wall of the shaft (41) close to the annular cylinder (44).

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