Etching machine for processing integrated circuit board and processing method

Abstract

The invention relates to the technical field of integrated circuit board processing, in particular to an etching machine for integrated circuit board processing and a processing method.The etching machine comprises a machine body, an observation window and two baffles, the observation window is hinged to the front face of the machine body, the baffles are movably installed on the two sides of the machine body, and a conveying mechanism is arranged in the middle of the machine body in a penetrating mode; according to the etching machine for processing the integrated circuit board and the processing method, through a rigid clamping module and a flexible clamping module in the clamping assembly, clamping of different properties can be carried out on a rigid integrated circuit board and a flexible integrated circuit board, so that the clamping efficiency is improved, and the processing accuracy is improved. The flexible clamping module is arranged on the flexible integrated circuit board, mechanical damage to the flexible integrated circuit board is avoided, and when the flexible clamping module is matched with the flushing assembly for operation, the flexible clamping module can drive the screen plate to shunt flushing etching liquid, so that impact on the flexible integrated circuit board is reduced, and the flexible integrated circuit board is further protected.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated circuit board processing, in particular to an etching machine and a processing method for integrated circuit board processing. Background Art

[0002] After the initial processing of the integrated circuit board is completed, the circuit needs to be formed by etching. Common etching techniques are divided into wet etching and dry etching. Wet etching is to remove the unprotected parts of the circuit board surface with etching liquid, while dry etching is to remove unnecessary materials on the circuit board surface by physical sputtering.

[0003] In wet etching, the circuit board needs to be immersed in etching liquid or etched by spraying etching liquid. However, with the development of science and technology, folding screen technology has gradually appeared in people's field of vision. In the etching of flexible integrated circuit boards adapted for use with it, since they are made of flexible materials, they are usually etched by immersion. However, when fixing, the clamping requirements are different from those of rigid circuit boards. If a unified clamping method is used, it is easy to cause mechanical damage to the flexible integrated circuit board. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an etching machine and a processing method for integrated circuit boards, which solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the present invention is implemented through the following technical solutions: an etching machine for processing integrated circuit boards, comprising a machine body, an observation window and a baffle, wherein the observation window is hinged on the front of the machine body, the baffle is two in number and movably installed on both sides of the machine body, a conveying mechanism is arranged through the middle of the machine body, a conveying wheel is arranged on the conveying mechanism, a clamping assembly is arranged above the conveying mechanism, and the clamping assembly comprises a rigid clamping module and a flexible clamping module; The rigid clamping module comprises a bracket, a conveying groove adapted to the conveying wheel on the conveying mechanism is opened in the middle of the bracket, and mounting grooves are opened inside both ends of the conveying groove; A first electric push rod is fixedly installed in the installation groove, a driving arm is movably installed on the output shaft of the first electric push rod, a clamping member is movably installed on one end of the driving arm away from the first electric push rod, and the clamping member is movably installed in the installation groove of the conveying mechanism; The shape of the clamping piece is an inverted L shape, and an air-filled space is opened at the upper end.

[0006] Optionally, the flexible clamping module includes an airbag fixedly connected to the bottom of the clamping member, and the airbag is in communication with the inflation space, a first piston is movably installed in the inflation space, a return spring is fixedly connected to the bottom of the first piston, and one end of the return spring away from the first piston is fixedly connected to the bottom of the inflation space; A plug rod is fixedly mounted on the top of the first piston, and the plug rod penetrates and extends to the outside of the clamping member, and first fixing frames are fixedly mounted on the upper surfaces of both ends of the clamping member, and a second electric push rod is fixedly mounted on the first fixing frame, and the output shaft of the second electric push rod is located directly above the plug rod; A slide rail is fixedly installed between the two ends of the clamping member, a slider is fixedly installed on the upper surface of the clamping member, and the slider and the slide rail are movably connected, a first hydraulic cylinder is fixedly installed in the middle of the upper surface of the slide rail, and the first hydraulic cylinder is fixedly installed on the top of the body cavity.

[0007] Optionally, a stirring assembly is provided in the inner cavity of the machine body, the stirring assembly comprises a second hydraulic cylinder fixedly mounted on the top of the machine body, a second fixing frame is fixedly mounted on the output shaft of the second hydraulic cylinder, and scrapers are fixedly mounted on four sides of the second fixing frame; The left and right sides of the bottom of the second fixing frame are fixedly installed with fixing blocks, the end of the fixing block away from the second fixing frame is fixedly installed with a fixing plate, the bottom of the fixing plate is fixedly installed with a connecting column, and the bottom of the connecting column is fixedly installed with a stirring plate.

[0008] Optionally, the bottom of the fixed plate is rotatably connected to a debris removal box on one side close to the inner cavity wall of the machine body through a torsion spring, a plug cover is clamped on the front of the debris removal box, and a filter groove is provided on the side of the debris removal box away from the inner cavity wall of the machine body, and the filter groove is conical, with the tip side facing the inner cavity of the debris removal box; A touch plate is fixedly mounted on the outer surface of the connecting column. The touch plate is located at one side of the debris removal box and is in active contact with the debris removal box.

[0009] Optionally, a flushing assembly is provided on the machine body, the flushing assembly comprises a filter box fixedly mounted on the back of the machine body, a pump tube is fixedly mounted in the inner cavity of the machine body, and one end of the pump tube away from the filter box is fixedly connected to the inner cavity of the machine body; A third electric push rod is fixedly installed on the top of the filter box, a second piston is fixedly installed on the output shaft of the third electric push rod, and the second piston is movably installed in the inner cavity of the filter box. A nozzle is fixedly installed on one side of the filter box, and the nozzle outlet is in the inner cavity of the machine body, and the nozzle outlet is inclined downward and arranged in an outward-facing "X" shape.

[0010] Optionally, a driving member is fixedly mounted on the output shaft of the second electric push rod, and mesh plates are rotatably connected to both sides of the slide rail via torsion springs. The driving member is triangular in shape and is located between the two mesh plates.

[0011] Optionally, the observation window is made of transparent tempered glass, and a sealing ring is provided at the edge.

[0012] Optionally, the conveying mechanism is bent, and a braking rubber sheet is provided on the surface of the conveying wheel at the inclined portion, and the baffle is located above the conveying mechanism.

[0013] Optionally, when the second electric push rod is not driven, there is a distance between the bottom of its output shaft and the top of the plug rod.

[0014] A processing method of an integrated circuit board processing etching machine, using the integrated circuit board processing etching machine as described above, comprises the following steps: S1: When in use, first determine whether the circuit board to be etched is rigid or flexible. If it is a rigid circuit board, after the conveying mechanism delivers it into the inner cavity of the machine body, start the first electric push rod to drive the clamping member to complete the clamping of the rigid circuit board. If it is a flexible circuit board, it is necessary to make the airbag above the flexible circuit board, start the second electric push rod to drive the plug rod, inflate the airbag, make the airbag stretch, and press against the flexible circuit board to complete the clamping; S2: After the clamping is completed, it is necessary to start the second hydraulic cylinder to drive the stirring plate to descend and make it reciprocate up and down to stir the etching liquid, improve the fluidity of the etching liquid, and make the etching process more uniform. When the scraper moves up and down, the impurity removal box will follow the up and down reciprocating motion. When it moves downward, it will contact the etching liquid and deflect under the pressure of the liquid. At the same time, the etching liquid will enter the impurity removal box and bring in the precipitation produced by etching. The conical design of the filter tank is used to achieve the purpose of impurity removal; S3: During immersion etching, there is still sediment on the surface of the circuit board, which affects the etching operation. The etching liquid is pumped into the filter box for filtration by starting the third electric push rod, and then the filtered etching liquid is sprayed onto the surface of the circuit board through the nozzle by starting the third electric push rod. In this way, impurities on the surface can be removed and the etching effect can be improved. When the etching operation is completed, the conveying mechanism needs to be started to guide the circuit board out of the inner cavity of the machine body.

[0015] The present invention provides an etching machine and a processing method for integrated circuit board processing, which have the following beneficial effects: 1. The etching machine and processing method for integrated circuit board processing can perform clamping of different natures on rigid integrated circuit boards and flexible integrated circuit boards through the rigid clamping module and the flexible clamping module in the clamping assembly to avoid mechanical damage to the flexible integrated circuit board. When working with the flushing assembly, the flexible clamping module can drive the screen to divert the flushing etching liquid, reduce its impact on the flexible integrated circuit board, and further protect the flexible integrated circuit board.

[0016] 2. The etching machine and processing method for integrated circuit board processing can make the etching liquid more uniform through the stirring component, thereby improving the etching effect. The impurity removal box can reduce the surging strength of the etching liquid in the inlet and outlet directions on both sides of the machine body, thereby preventing the etching liquid from splashing from both sides of the machine body. At the same time, during the up and down reciprocating motion of the impurity removal box, the etching liquid can be impurities removed. In addition, the flushing component can be used to assist the impurity removal box in collecting impurities when removing impurities on the surface of the circuit board, thereby improving the etching effect of the etching liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The structure of the present invention is shown in FIG. Figure 2 ; Figure 3 The structure of the present invention is shown in FIG. Figure 3 ; Figure 4 The schematic diagram of the positional relationship of the clamping assembly, the stirring assembly and the flushing assembly of the present invention is shown in FIG. Figure 1 ; Figure 5 The schematic diagram of the positional relationship of the clamping assembly, the stirring assembly and the flushing assembly of the present invention is shown in FIG. Figure 2 ; Figure 6 The structure of the clamping assembly of the present invention is schematically shown in FIG. Figure 1 ; Figure 7 For the present invention Figure 6 A schematic diagram of the local enlarged structure at point A in the middle; Figure 8 The structure of the clamping assembly of the present invention is schematically shown in FIG. Figure 2 ; Fig. 9 For the present invention Figure 7 A schematic diagram of the local enlarged structure at B in the middle; Fig.10 The structure of the clamping assembly of the present invention is schematically shown in FIG. Figure 3 ; Fig.11 The structure of the stirring assembly of the present invention is schematically shown in FIG. Figure 1 ; Fig.12 The structure of the stirring assembly of the present invention is schematically shown in FIG. Figure 2 ; Fig.13 The structure of the impurity removal box of the present invention is shown in FIG. Figure 1 ; Fig.14 The structure of the impurity removal box of the present invention is shown in FIG. Figure 2 .

[0018] In the figure: 1, machine body; 11, observation window; 12, baffle; 2, conveying mechanism; 21, bracket; 22, conveying trough; 23, first electric push rod; 24, driving arm; 25, clamping member; 26, air bag; 27, plug rod; 28, first piston; 29, return spring; 210, first fixed frame; 211, second electric push rod; 212, slide rail; 213, slider; 214, first hydraulic cylinder; 3, second hydraulic cylinder; 31, second fixed frame; 32, scraper; 33, fixed block; 34, fixed plate; 35, connecting column; 36, stirring plate; 4, impurity removal box; 41, plug cover; 42, filter trough; 43, touch plate; 5, filter box; 51, pump pipe; 52, third electric push rod; 53, second piston; 54, nozzle; 6, driving member; 61, mesh plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example 1: Please refer to Figures 1 to 10 The present invention provides a technical solution: an etching machine for processing integrated circuit boards, comprising a machine body 1, an observation window 11 and a baffle 12, wherein the observation window 11 is hinged on the front of the machine body 1, the number of baffles 12 is two, and they are movably installed on both sides of the machine body 1, a conveying mechanism 2 is arranged through the middle of the machine body 1, a conveying wheel is arranged on the conveying mechanism 2, a clamping assembly is arranged above the conveying mechanism 2, and the clamping assembly includes a rigid clamping module and a flexible clamping module; The rigid clamping module includes a bracket 21, a conveying groove 22 adapted to the conveying wheel on the conveying mechanism 2 is opened in the middle of the bracket 21, and mounting grooves are opened inside both ends of the conveying groove 22; A first electric push rod 23 is fixedly installed in the installation groove, a driving arm 24 is movably installed on the output shaft of the first electric push rod 23, a clamping member 25 is movably installed on one end of the driving arm 24 away from the first electric push rod 23, and the clamping member 25 is movably installed in the installation groove of the conveying mechanism 2; The shape of the clamping member 25 is an inverted L-shape, and an air-filled space is opened at the upper end.

[0021] The flexible clamping module includes an airbag 26 fixedly connected to the bottom of the clamping member 25, and the airbag 26 is connected to the inflation space, a first piston 28 is movably installed in the inflation space, a return spring 29 is fixedly connected to the bottom of the first piston 28, and one end of the return spring 29 away from the first piston 28 is fixedly connected to the bottom of the inflation space; A plug rod 27 is fixedly mounted on the top of the first piston 28, and the plug rod 27 penetrates and extends to the outside of the clamping member 25. First fixing frames 210 are fixedly mounted on the upper surfaces of both ends of the clamping member 25. A second electric push rod 211 is fixedly mounted on the first fixing frame 210, and the output shaft of the second electric push rod 211 is located directly above the plug rod 27. A slide rail 212 is fixedly installed between the two ends of the clamping member 25, a slider 213 is fixedly installed on the upper surface of the clamping member 25, and the slider 213 is movably connected to the slide rail 212, a first hydraulic cylinder 214 is fixedly installed in the middle of the upper surface of the slide rail 212, and the first hydraulic cylinder 214 is fixedly installed on the top of the inner cavity of the body 1; The observation window 11 is made of transparent tempered glass, and a sealing ring is provided at the edge; The conveying mechanism 2 is bent, and a brake rubber sheet is provided on the surface of the conveying wheel at the inclined portion, and the baffle 12 is located above the conveying mechanism 2; When the second electric push rod 211 is not driven, there is a gap between the bottom of its output shaft and the top of the plug rod 27 .

[0022] Specifically, when in use, the user first needs to determine whether the circuit board to be etched is a rigid integrated circuit board or a flexible integrated circuit board. If it is a rigid integrated circuit board, when the conveying mechanism 2 introduces the circuit board into the inner cavity of the body 1, it is necessary to start the first electric push rods 23 at both ends of the bracket 21 to drive the driving arm 24, so that the driving arm 24 drives the clamping member 25, and the rigid circuit board is clamped by the lower sides of the two clamping members 25. If it is a flexible integrated circuit board, it is necessary to make the clamping member 25 move so that the airbag 26 is above the circuit board, and the lower part of the clamping member 25 does not need to contact the circuit board. Then, it is necessary to start the second electric push rod 211 to drive the plug rod 27, so that the plug rod 27 drives the first piston 28 to move downward, and introduces the gas in the inflation space into the airbag 26, so that the airbag 26 stretches and presses against the circuit board, completing the elastic clamping of the circuit board. The present invention adapts to circuit boards of different properties through different clamping methods, which can prevent the circuit board from being mechanically damaged during the clamping process. The conveying mechanism 2 is bent so that the liquid level of the etching liquid is lower than the inlet and outlet on both sides of the machine body 1, and a brake rubber sheet is arranged on the surface of the conveying wheel at its inclined position to prevent the circuit board from slipping and being difficult to be unloaded during transportation.

[0023] Example 2: Please refer to Figure 3, Figure 4 , Fig.11 , Fig.12 , Fig.13 and Fig.14 A stirring assembly is provided in the inner cavity of the machine body 1, and the stirring assembly includes a second hydraulic cylinder 3 fixedly mounted on the top of the machine body 1, a second fixing frame 31 is fixedly mounted on the output shaft of the second hydraulic cylinder 3, and scrapers 32 are fixedly mounted on the four sides of the second fixing frame 31; Fixed blocks 33 are fixedly installed on both left and right sides of the bottom of the second fixed frame 31, a fixed plate 34 is fixedly installed on one end of the fixed block 33 away from the second fixed frame 31, a connecting column 35 is fixedly installed on the bottom of the fixing plate 34, and a stirring plate 36 is fixedly installed on the bottom of the connecting column 35.

[0024] The bottom of the fixed plate 34 is rotatably connected to a debris removal box 4 on one side close to the inner cavity wall of the machine body 1 through a torsion spring. A plug cover 41 is clamped on the front of the debris removal box 4. A filter groove 42 is provided on the side of the debris removal box 4 away from the inner cavity wall of the machine body 1. The filter groove 42 is conical, and the tip side faces the inner cavity of the debris removal box 4. A touch plate 43 is fixedly mounted on the outer surface of the connecting column 35 . The touch plate 43 is located at one side of the impurity removal box 4 and is in active contact with the impurity removal box 4 .

[0025] On the basis of Example 1, after the circuit board is clamped, it is necessary to start the second hydraulic cylinder 3 to drive the second fixing frame 31 to reciprocate up and down, so that the second fixing frame 31 drives the scraper 32 to reciprocate up and down, and when the second fixing frame 31 reciprocates up and down, it drives the fixing block 33 to reciprocate up and down, so that the fixing block 33 drives the fixing plate 34 to reciprocate up and down, so that the connecting column 35 drives the stirring plate 36 to reciprocate up and down, thereby realizing the stirring of the etching liquid, making the etching operation more uniform and improving the etching effect; When the etching liquid is stirred, the etching liquid is likely to be splashed, causing the observation window 11 to be blurred, making it difficult to observe the etching situation, and the surging of the etching liquid is likely to splash from the inlet and outlet ports on both sides of the body 1. In the present invention, the scraper 32 can scrape the inner cavity wall of the body 1 to prevent the etching liquid from splashing on the inner cavity wall of the body 1 and being retained, affecting the utilization rate of the etching liquid. At the same time, the etching liquid splashed on the inner side of the observation window 11 can be scraped off to ensure a clear observation field of view; Furthermore, when the fixed plate 34 reciprocates up and down, the impurity removal box 4 will be driven to reciprocate up and down. When the impurity removal box 4 moves downward and enters the etching liquid, the impurity removal box 4 will receive the pressure of the etching liquid and flip toward the inner wall of the body 1. In this process, the precipitate in the etching liquid will be squeezed into the inner cavity of the impurity removal box 4 through the filter groove 42 by the pressure of the liquid, so as to achieve the purpose of impurity removal. On the other hand, the impurity removal box 4 can block the inlet and outlet on both sides of the body 1, reduce the surging strength of the etching liquid in the inlet and outlet directions on both sides of the body 1, and cooperate with the baffle 12 to further reduce the sputtering problem of the etching liquid. By designing the filter groove 42 to be conical, after the impurity removal box 4 is reset, the precipitate can still be retained in the inner cavity of the impurity removal box 4 when the etching liquid refluxes, or a movably installed filter plate is set in the inner cavity of the impurity removal box 4, and when the etching liquid enters the impurity removal box 4, the filter plate moves toward the inner side of the impurity removal box 4 to facilitate the entry of the precipitate. When the impurity removal box 4 is reset, the filter plate follows the reset, shielding the filter groove 42, thereby blocking the reflux of the precipitate, and after each reset of the impurity removal box 4, it will contact and collide with the touch plate 43, causing the impurity removal box 4 to vibrate, and the precipitate and impurities retained on the inner cavity wall of the impurity removal box 4 can be shaken off to the bottom of the inner cavity of the impurity removal box 4, which is convenient for the user to collect.

[0026] Example 3: Please refer to Figures 3 to 5 The machine body 1 is provided with a flushing assembly, which includes a filter box 5 fixedly mounted on the back of the machine body 1, a pump tube 51 fixedly mounted in the inner cavity of the machine body 1, and one end of the pump tube 51 away from the filter box 5 is fixedly connected to the inner cavity of the machine body 1; A third electric push rod 52 is fixedly installed on the top of the filter box 5, and a second piston 53 is fixedly installed on the output shaft of the third electric push rod 52. The second piston 53 is movably installed in the inner cavity of the filter box 5. A nozzle 54 is fixedly installed on one side of the filter box 5. The nozzle of the nozzle 54 is in the inner cavity of the body 1, and the nozzle is inclined downward and arranged in an outward-facing "X" shape.

[0027] A driving member 6 is fixedly mounted on the output shaft of the second electric push rod 211 . Both sides of the slide rail 212 are rotatably connected to mesh plates 61 via torsion springs. The driving member 6 is triangular in shape and is located between the two mesh plates 61 .

[0028] On the basis of Example 2, when the etching operation is a rigid integrated circuit board, after a period of immersion etching, the corroded copper ions are easy to react with other elements, resulting in etching precipitation on the surface of the circuit board. At this time, it is necessary to start the third electric push rod 52 to drive the filter box 5 to rise, so that the pump pipe 51 draws the etching liquid into the inner cavity of the filter box 5 for filtration, and then start the first hydraulic cylinder 214 to drive the bracket 21 to rise, so that the upper surface of the rigid integrated circuit board is one to two centimeters away from the liquid surface of the etching liquid, and then start the third electric push rod 52 to drive the second piston 53 to move downward, and the filtered etching liquid is sprayed out through the nozzle 54. The outer eight-angle design of the nozzle 54 can spray the precipitation on the surface of the rigid integrated circuit board from both sides thereof, reducing the influence of the etching precipitation. It should be noted that the time for the nozzle 54 to spray the etching liquid can be set when the impurity removal box 4 is in the etching liquid. At this time, the precipitation leaving the surface of the rigid integrated circuit board will move toward the direction of the impurity removal box 4, which is convenient for the impurity removal box 4 to collect the precipitation, improve the collection efficiency of the impurity removal box 4, and enhance the etching effect of the etching liquid; When the flexible integrated circuit board is being etched, the first hydraulic cylinder 214 is activated to drive it to rise to a distance of one to two centimeters from the etching liquid surface during immersion etching. In this way, after the etching liquid is stirred, even if surging occurs, since the etching liquid flow rate above the flexible integrated circuit board is small, the etching effect is not affected and the etching liquid is prevented from impacting the flexible integrated circuit board and causing damage. When etching deposits appear on the surface of the flexible integrated circuit board after being soaked in etching for a period of time, the third electric push rod 52 is started again to filter and circulate the etching liquid and then spray it out. While removing the deposits from the flexible integrated circuit board, the impurity removal box 4 is assisted to remove impurities. In this process, the flexible integrated circuit board adopts a flexible clamping module. During the clamping process of the flexible clamping module, after the second electric push rod 211 is started, before driving the plug rod 27, it will first drive the driving member 6 to descend. When the driving member 6 descends, it will drive the mesh plate 61 to change from a vertical state to a horizontal state. In this way, when the etching liquid is sprayed out by the nozzle 54, the etching liquid can be diverted to reduce the impact of the etching liquid on the flexible integrated circuit board. While removing the deposits, the flexible integrated circuit board can be further protected.

[0029] A processing method of an integrated circuit board processing etching machine, using the integrated circuit board processing etching machine as described above, comprises the following steps: S1: When in use, first determine whether the circuit board to be etched is rigid or flexible. If it is a rigid circuit board, after the conveying mechanism 2 delivers it into the inner cavity of the body 1, start the first electric push rod 23 to drive the clamping member 25 to complete the clamping of the rigid circuit board. If it is a flexible circuit board, it is necessary to make the airbag 26 above the flexible circuit board, start the second electric push rod 211 to drive the plug rod 27, inflate the airbag 26, so that the airbag 26 stretches and presses against the flexible circuit board to complete the clamping; S2: After the clamping is completed, it is necessary to start the second hydraulic cylinder 3 to drive the stirring plate 36 to descend and make it reciprocate up and down to stir the etching liquid, improve the fluidity of the etching liquid, and make the etching process more uniform. When the scraper 32 reciprocates up and down, the impurity removal box 4 will follow the up and down reciprocating motion. When it moves downward, it will contact the etching liquid and deflect under the pressure of the liquid. At the same time, the etching liquid will enter the impurity removal box 4 and bring in the precipitate produced by etching. The conical design of the filter tank 42 is used to achieve the purpose of impurity removal; S3: During immersion etching, there is still sediment on the surface of the circuit board, which affects the etching operation. The etching liquid is pumped into the filter box 5 for filtration by starting the third electric push rod 52, and then the filtered etching liquid is sprayed onto the surface of the circuit board through the nozzle 54 by starting the third electric push rod 52. In this way, impurities on the surface can be removed and the etching effect can be improved. When the etching operation is completed, it is necessary to start the conveying mechanism 2 to guide the circuit board out of the inner cavity of the body 1.

[0030] 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. An etching machine for processing integrated circuit boards, comprising a machine body (1), an observation window (11) and a baffle (12), wherein the observation window (11) is hinged on the front of the machine body (1), and the baffle (12) is two in number and movably mounted on both sides of the machine body (1), characterized in that: A conveying mechanism (2) is provided through the middle of the machine body (1), a conveying wheel is provided on the conveying mechanism (2), a clamping assembly is provided above the conveying mechanism (2), and the clamping assembly comprises a rigid clamping module and a flexible clamping module; The rigid clamping module comprises a bracket (21), a conveying groove (22) adapted to the conveying wheel on the conveying mechanism (2) is provided in the middle of the bracket (21), and mounting grooves are provided inside both ends of the conveying groove (22); A first electric push rod (23) is fixedly mounted in the mounting groove, a driving arm (24) is movably mounted on the output shaft of the first electric push rod (23), a clamping member (25) is movably mounted on one end of the driving arm (24) away from the first electric push rod (23), and the clamping member (25) is movably mounted in the mounting groove of the conveying mechanism (2); The clamping piece (25) is in an inverted L-shape, and an air-filled space is provided at the upper end.

2. An integrated circuit board processing etching machine according to claim 1, characterized in that: The flexible clamping module comprises an airbag (26) fixedly connected to the bottom of the clamping member (25), and the airbag (26) is connected to the inflation space, a first piston (28) is movably installed in the inflation space, a return spring (29) is fixedly connected to the bottom of the first piston (28), and one end of the return spring (29) away from the first piston (28) is fixedly connected to the bottom of the inflation space; A plug rod (27) is fixedly mounted on the top of the first piston (28), and the plug rod (27) penetrates and extends to the outside of the clamping member (25); first fixing frames (210) are fixedly mounted on the upper surfaces of both ends of the clamping member (25); a second electric push rod (211) is fixedly mounted on the first fixing frame (210), and an output shaft of the second electric push rod (211) is located directly above the plug rod (27); A slide rail (212) is fixedly mounted between the two ends of the clamping member (25); a slider (213) is fixedly mounted on the upper surface of the clamping member (25); the slider (213) and the slide rail (212) are movably connected; a first hydraulic cylinder (214) is fixedly mounted in the middle of the upper surface of the slide rail (212); the first hydraulic cylinder (214) is fixedly mounted on the top of the inner cavity of the machine body (1).

3. An integrated circuit board processing etching machine according to claim 2, characterized in that: A stirring assembly is arranged in the inner cavity of the machine body (1), the stirring assembly comprising a second hydraulic cylinder (3) fixedly mounted on the top of the machine body (1), a second fixing frame (31) fixedly mounted on the output shaft of the second hydraulic cylinder (3), and scrapers (32) fixedly mounted on four sides of the second fixing frame (31); A fixing block (33) is fixedly mounted on both left and right sides of the bottom of the second fixing frame (31); a fixing plate (34) is fixedly mounted on one end of the fixing block (33) away from the second fixing frame (31); a connecting column (35) is fixedly mounted on the bottom of the fixing plate (34); and a stirring plate (36) is fixedly mounted on the bottom of the connecting column (35).

4. An integrated circuit board processing etching machine according to claim 3, characterized in that: The bottom of the fixed plate (34) is rotatably connected to a debris removal box (4) on one side close to the inner cavity wall of the machine body (1) via a torsion spring, a plug cover (41) is clamped on the front of the debris removal box (4), and a filter groove (42) is provided on the side of the debris removal box (4) away from the inner cavity wall of the machine body (1), the filter groove (42) is conical, and the tip side faces the inner cavity of the debris removal box (4); A touch plate (43) is fixedly mounted on the outer surface of the connecting column (35); the touch plate (43) is located on one side of the impurity removal box (4) and is in active contact with the impurity removal box (4).

5. An integrated circuit board processing etching machine according to claim 4, characterized in that: The machine body (1) is provided with a flushing assembly, the flushing assembly comprising a filter box (5) fixedly mounted on the back of the machine body (1), a pump tube (51) fixedly mounted in the inner cavity of the machine body (1), and an end of the pump tube (51) away from the filter box (5) is fixedly connected to the inner cavity of the machine body (1); A third electric push rod (52) is fixedly mounted on the top of the filter box (5); a second piston (53) is fixedly mounted on the output shaft of the third electric push rod (52); the second piston (53) is movably mounted in the inner cavity of the filter box (5); a nozzle (54) is fixedly mounted on one side of the filter box (5); a nozzle of the nozzle (54) is located in the inner cavity of the machine body (1), and the nozzle is tilted downward and arranged in an outward-facing "X" shape.

6. An integrated circuit board processing etching machine according to claim 5, characterized in that: A driving member (6) is fixedly mounted on the output shaft of the second electric push rod (211); mesh plates (61) are rotatably connected to both sides of the slide rail (212) via torsion springs; the driving member (6) is triangular in shape and is located between the two mesh plates (61).

7. An integrated circuit board processing etching machine according to claim 6, characterized in that: The observation window (11) is made of transparent tempered glass, and a sealing ring is provided at the edge.

8. An integrated circuit board processing etching machine according to claim 7, characterized in that: The conveying mechanism (2) is bent, and a braking rubber sheet is provided on the surface of the conveying wheel at the inclined portion, and the baffle (12) is located above the conveying mechanism (2).

9. An integrated circuit board processing etching machine according to claim 8, characterized in that: When the second electric push rod (211) is not driven, there is a distance between the bottom of its output shaft and the top of the plug rod (27).

10. A processing method of an integrated circuit board processing etching machine, using the integrated circuit board processing etching machine as claimed in claim 9, characterized in that: The following steps are involved: S1: When in use, first determine whether the circuit board to be etched is rigid or flexible. If it is a rigid circuit board, after the conveying mechanism (2) delivers it into the inner cavity of the machine body (1), start the first electric push rod (23) to drive the clamping member (25) to complete the clamping of the rigid circuit board. If it is a flexible circuit board, it is necessary to make the airbag (26) above the flexible circuit board, start the second electric push rod (211) to drive the plug rod (27), inflate the airbag (26), so that the airbag (26) stretches and presses against the flexible circuit board to complete the clamping; S2: After the clamping is completed, it is necessary to start the second hydraulic cylinder (3) to drive the stirring plate (36) to descend and make it reciprocate up and down to stir the etching liquid, thereby improving the fluidity of the etching liquid and making the etching process more uniform. When the scraper (32) reciprocates up and down, the impurity removal box (4) will follow the up and down reciprocating motion. When it moves downward, it will contact the etching liquid and deflect under the pressure of the liquid. At the same time, the etching liquid will enter the impurity removal box (4) and bring in the precipitate produced by etching. The conical design of the filter tank (42) is used to achieve the purpose of impurity removal. S3: During immersion etching, there is still sediment on the surface of the circuit board, which affects the etching operation. The etching liquid is pumped into the filter box (5) for filtration by starting the third electric push rod (52), and then the filtered etching liquid is sprayed onto the surface of the circuit board through the nozzle (54) by starting the third electric push rod (52). In this way, impurities on the surface can be removed and the etching effect can be improved. When the etching operation is completed, it is necessary to start the conveying mechanism (2) to guide the circuit board out of the inner cavity of the machine body (1).

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