Copper plate micro-etching equipment for PCB production line

Abstract

The invention belongs to the technical field of PCB production, and particularly relates to a copper plate micro-etching device for a PCB production line, the copper plate micro-etching device comprises a micro-etching groove, a rotating assembly, a plurality of clamping assemblies and a driving assembly, micro-etching liquid is arranged in the micro-etching groove, the rotating assembly is arranged in the micro-etching groove, the plurality of clamping assemblies are used for clamping a copper plate, and the driving assembly is used for driving the clamping assemblies to rotate. The multiple clamping assemblies are in transmission connection with the rotating assembly, the rotating assembly is used for driving the multiple clamping assemblies to rotate, and the driving assembly is used for driving the clamping assemblies to be opened. The multiple clamping assemblies are connected to the rotating assembly, the rotating assembly is used for driving the multiple clamping assemblies to rotate, the different clamping assemblies can be driven to conduct operations of copper plate putting-in, copper plate micro-etching treatment and copper plate taking-out correspondingly, and mutual interference and overlapping do not occur between adjacent copper plates; and the uniformity of micro-etching treatment on the copper plate is ensured, and the production quality of the PCB is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of PCB production, and particularly relates to a copper plate micro-etching device for a PCB production line. BACKGROUND

[0002] In the PCB production line, copper plate micro-etching is a process of slightly corroding the surface of the copper plate by chemical etching to form a micro-rough structure. Specifically, a micro-etching tank is arranged in the PCB production line, and a micro-etching solution is input into the micro-etching tank, and the copper plate is placed into the micro-etching tank for micro-etching treatment by the micro-etching solution. The micro-etching solution can be any one of a persulfate system micro-etching solution, a ferric chloride system micro-etching solution, and a hydrogen peroxide-sulfuric acid system micro-etching solution.

[0003] However, in the existing micro-etching process, the copper plate is difficult to maintain an accurate posture and position, and multiple copper plates are prone to collide or stack, thereby affecting the uniformity of micro-etching. Therefore, it is necessary to design a copper plate micro-etching device for a PCB production line to solve the above problems. SUMMARY

[0004] In view of the above problems, the present application provides a copper plate micro-etching device for a PCB production line to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a copper plate micro-etching device for a PCB production line, comprising a micro-etching tank, a rotating assembly, a plurality of clamping assemblies, and a driving assembly, the micro-etching tank is provided with a micro-etching solution, the rotating assembly is arranged in the micro-etching tank, the clamping assemblies are arranged in plurality, each of the clamping assemblies is used for clamping a copper plate, the clamping assemblies are in transmission connection with the rotating assembly, the rotating assembly is used for driving the clamping assemblies to rotate, and the driving assembly is used for driving the clamping assemblies to open.

[0006] Further, the rotating assembly comprises a motor, a first transmission shaft, and a connecting block, the first transmission shaft is in rotational connection with the micro-etching tank, the axial direction of the first transmission shaft is towards the left-right direction, the motor is connected with the outer wall of the micro-etching tank and in rotational connection with the first transmission shaft, the connecting block is connected with the first transmission shaft, the clamping assemblies are evenly distributed around the outside of the connecting block, and one end of the clamping assemblies is connected with the connecting block.

[0007] Further, the clamping assembly comprises a fixed block and a clamping mechanism, the rotating assembly further comprises a limiting mechanism, a first limiting groove is formed in the middle of the connecting block, the fixed block is used for being inserted into the first limiting groove, and the limiting mechanism is connected with the connecting block and used for limiting the fixed block.

[0008] Further, the limiting mechanism comprises a limiting sleeve and an elastic structure, a second limiting groove is formed in the end of the connecting block, a third limiting groove is formed in the fixing block, the elastic structure is arranged in the second limiting groove, one end of the limiting sleeve passes through the second limiting groove and is inserted into the third limiting groove, the other end of the limiting sleeve abuts against the elastic structure, and the limiting sleeve is used for moving in the left-right direction.

[0009] Further, the elastic structure comprises a first mounting seat, a spring and a first limiting rod, the first mounting seat and the first limiting rod are arranged in the second limiting groove, one end of the first limiting rod is connected with the first mounting seat, the axial direction of the first limiting rod is towards the left-right direction, the spring is sleeved on the first limiting rod, the limiting sleeve is coaxially arranged with the first limiting rod, one end of the limiting sleeve is slidably connected with one end of the first limiting rod and is used for abutting against the spring.

[0010] Further, the clamping mechanism comprises a clamping seat, a clamping cover, a second transmission shaft, a second mounting seat and a torsion spring, the clamping seat is connected with the fixing block, the second mounting seat is connected to the clamping seat, one end of the clamping cover close to the fixing block is rotationally connected with the second mounting seat through the second transmission shaft, and the torsion spring is sleeved on the second transmission shaft. Hollow holes are formed in the middle of the clamping seat and the clamping cover.

[0011] Further, the clamping mechanism further comprises a stop block, the stop block is arranged on the front and rear sides of the clamping seat, and a positioning groove is formed in the side surface of the clamping cover close to the clamping seat.

[0012] Further, the driving assembly comprises a first driving mechanism and a second driving mechanism, the second driving mechanism is connected with the outer side wall of the micro-etching groove and is in transmission connection with the first driving mechanism, the first driving mechanism is used for driving the clamping cover to move away from the clamping seat, and the second driving mechanism is used for driving the first driving mechanism to move away from or close to the clamping cover.

[0013] Further, the first driving mechanism comprises a first air cylinder and a second limiting rod, the second driving mechanism is in transmission connection with the first air cylinder, the first air cylinder is in transmission connection with the second limiting rod, a fourth limiting groove is formed in the end of the clamping cover away from the fixing block, and the second limiting rod is used for being inserted into the fourth limiting groove.

[0014] Further, the first driving mechanism further comprises a sliding block, the second driving mechanism comprises a second cylinder and a third mounting base, a sliding groove is formed on the outer sidewall of the micro-etching tank, the sliding groove extends in the up-down direction, the sliding block is slidingly connected to the sliding groove, the third mounting base is connected to the sliding block, the first cylinder is connected to the third mounting base, and the second cylinder is connected to the outer sidewall of the micro-etching tank and is in transmission connection with the third mounting base.

[0015] Technical effects and advantages of the present application: 1. By connecting a plurality of clamping assemblies on the rotating assembly, the rotating assembly drives the plurality of clamping assemblies to rotate, which can drive different clamping assemblies to respectively put in, micro-etch, and take out the copper plates, so that the adjacent copper plates will not interfere and overlap with each other, which is beneficial to ensure the uniformity of the micro-etching of the copper plates and improve the production quality of the PCB.

[0016] 2. By setting the driving assembly, the clamping assembly is opened by the driving assembly, which reduces the work of opening the clamping assembly by the workers and is beneficial to reduce the work burden.

[0017] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the structures indicated in the specification and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 The structure schematic diagram of the copper plate micro-etching equipment for the PCB production line in the embodiment of the present application is shown; Figure 2 The structure schematic diagram of the rotating assembly and the clamping assembly in the embodiment of the present application is shown; Figure 3 The structure schematic diagram of the clamping assembly in the embodiment of the present application is shown; Figure 4 The structure schematic diagram of the clamping assembly in the embodiment of the present application is shown; Figure 3 The sectional view in the A-A direction in the embodiment of the present application is shown; Figure 5 The sectional view in the B-B direction in the embodiment of the present application is shown; Figure 4 The sectional view in the B-B direction in the embodiment of the present application is shown; Figure 6 The sectional view in the B-B direction in the embodiment of the present application is shown; Figure 4Enlarged view of region C; Figure 7 Structure diagram of the limiting mechanism of the embodiment of the application is shown. Figure 8 Structure diagram of the limiting mechanism of the embodiment of the application is shown. Figure 7 Enlarged view of region D; Figure 9 Structure diagram of the driving assembly of the embodiment of the application is shown.

[0020] Fig. 1, micro-etching tank; 2, rotating assembly; 3, clamping assembly; 4, driving assembly; 5, motor; 6, first transmission shaft; 7, connecting block; 8, fixed block; 9, clamping mechanism; 10, limiting mechanism; 11, first limiting groove; 12, limiting sleeve; 13, elastic structure; 14, second limiting groove; 15, third limiting groove; 16, first mounting seat; 17, spring; 18, first limiting rod; 19, sliding groove; 20, pushing block; 21, clamping seat; 22, clamping cover; 23, second transmission shaft; 24, second mounting seat; 25, torsional spring; 26, stop block; 27, positioning groove; 28, first driving mechanism; 29, second driving mechanism; 30, first air cylinder; 31, second limiting rod; 32, fourth limiting groove; 33, limiting hole; 34, sliding block; 35, second air cylinder; 36, third mounting seat; 37, sliding groove. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the application clearer, the technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are some but not all of the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0022] The positive direction of the X axis is the front direction, the reverse direction of the X axis is the rear direction, the positive direction of the Y axis is the left direction, the reverse direction of the Y axis is the right direction, the positive direction of the Z axis is the upward direction, and the reverse direction of the Z axis is the downward direction.

[0023] As shown in Figure 1 The copper plate micro-etching equipment for a PCB production line provided by the embodiment of the application includes a micro-etching tank 1, a rotating assembly 2, clamping assemblies 3, and a driving assembly 4. The micro-etching tank 1 is provided with a micro-etching solution. The rotating assembly 2 is arranged in the micro-etching tank 1. The clamping assemblies 3 are provided in plurality. The clamping assemblies 3 are used for clamping copper plates. The clamping assemblies 3 are in transmission connection with the rotating assembly 2. The rotating assembly 2 is used for driving the clamping assemblies 3 to rotate. The driving assembly 4 is used for driving the clamping assemblies 3 to open.

[0024] Specifically, a mechanical hand can be arranged on both sides of the micro-etching tank 1 to grab the copper plate, or a vacuum pump controlled suction cup can be used to adsorb and grab the copper plate, or the copper plate can be manually placed or taken out. Secondly, the micro-etching tank 1 is made of corrosion-resistant materials such as polyvinyl chloride (PVC) and polypropylene (PP) to withstand chemical corrosion of the micro-etching solution. The shape and size of the tank body are determined according to production requirements, and are generally rectangular or square with a certain depth and volume to accommodate enough micro-etching solution and copper plates to be processed.

[0025] In this embodiment, when the copper plate is micro-etched, the rotating assembly 2 drives a clamping assembly 3 to rotate until the clamping assembly 3 is rotated to the front side of the micro-etching tank 1. The driving assembly 4 opens the clamping assembly 3, and after the copper plate is placed in the clamping assembly 3, the clamping assembly 3 is closed to clamp the copper plate. The clamping assembly 3 is immersed in the micro-etching solution in the micro-etching tank 1 by the rotating assembly 2. Since the rotating assembly 2 is connected to multiple clamping assemblies 3, one clamping assembly 3 is driven by the rotating assembly 2 to rotate to the front side of the micro-etching tank 1 for placing the copper plate to be micro-etched. Another clamping assembly 3 is simultaneously driven to rotate into the micro-etching tank 1 for micro-etching the copper plate on the other clamping assembly 3. And another clamping assembly 3 is simultaneously driven to rotate to the back side of the micro-etching tank 1 for taking out the micro-etched copper plate.

[0026] Thus, by connecting multiple clamping assemblies 3 to the rotating assembly 2, the rotating assembly 2 drives multiple clamping assemblies 3 to rotate, which can drive different clamping assemblies 3 to perform the operations of placing the copper plate, micro-etching the copper plate, and taking out the copper plate. The adjacent copper plates will not interfere with each other and overlap, which is beneficial to ensure the uniformity of the micro-etching of the copper plate and improve the production quality of the PCB. Secondly, by providing the driving assembly 4, the clamping assembly 3 is opened by the driving assembly 4, which reduces the work of opening the clamping assembly 3 by the workers and is beneficial to reduce the work burden.

[0027] Alternatively, as shown in Figures 2 to 7 The rotating assembly 2 includes a motor 5, a first transmission shaft 6, and a connecting block 7. The first transmission shaft 6 is rotatably connected to the micro-etching tank 1, and the axial direction of the first transmission shaft 6 is towards the left and right direction. The motor 5 is connected to the outer wall of the micro-etching tank 1 and is rotatably connected to the first transmission shaft 6. The connecting block 7 is connected to the first transmission shaft 6, and multiple clamping assemblies 3 are evenly distributed around the outer side of the connecting block 7. One end of each clamping assembly 3 is connected to the connecting block 7.

[0028] Specifically, the first transmission shaft 6 is located in the middle of the micro-etching tank 1. Secondly, the motor 5 is welded or bolted to the left side wall of the micro-etching tank 1. In addition, the connecting block 7 can be arranged in a rectangular block structure or a polygonal block structure.

[0029] In the embodiment, the first transmission shaft 6 is driven to rotate around its center line by the motor 5 connected to the first transmission shaft 6, so as to drive the connecting block 7 to rotate, and then drive the plurality of clamping assemblies 3 evenly distributed on the connecting block 7 to rotate, so that the different clamping assemblies 3 are moved to the front side of the micro-etching tank 1, the inside of the micro-etching tank 1 or the rear side of the micro-etching tank 1, so as to prevent the copper plates on the different clamping assemblies 3 from interfering or overlapping with each other. Secondly, the first transmission shaft 6 and the connecting block 7 are driven to rotate by the motor 5, so as to drive the plurality of clamping assemblies 3 to rotate to different positions of the micro-etching tank 1, and then the different clamping assemblies 3 can be respectively operated to put in the copper plates, micro-etching treatment of the copper plates and take out the copper plates, which is beneficial to ensure the orderly progress of the micro-etching treatment process of the copper plates.

[0030] Optionally, as shown in Figure 2 , Figure 3 and Figure 7 , the clamping assembly 3 comprises a fixed block 8 and a clamping mechanism 9, and the rotating assembly 2 further comprises a limiting mechanism 10, a first limiting groove 11 is formed in the middle of the connecting block 7, the fixed block 8 is used for being inserted into the first limiting groove 11, and the limiting mechanism 10 is connected with the connecting block 7 and used for limiting the fixed block 8.

[0031] Specifically, when the connecting block 7 is provided in the form of a rectangular block structure, the first limiting groove 11 is provided in the form of a rectangular structure. The fixed block 8 is slidably inserted into the first limiting groove 11.

[0032] In the embodiment, when the clamping assembly 3 is installed, the fixed block 8 is inserted into the first limiting groove 11, and then the limiting mechanism 10 connected with the connecting block 7 is used to limit the fixed block 8, so as to prevent the fixed block 8 from being separated from the first limiting groove 11. Therefore, by inserting the fixed block 8 into the first limiting groove 11 and limiting the fixed block 8 by the limiting mechanism 10, the fixed block 8 and the connecting block 7 can be disassembled, so as to realize disassembly of the clamping assembly 3, and facilitate cleaning or replacement of the clamping assembly 3.

[0033] Optionally, as shown in Figure 3 , Figure 4 and Figures 6 to 8 , the limiting mechanism 10 comprises a limiting sleeve 12 and an elastic structure 13, a second limiting groove 14 is formed in the end of the connecting block 7, a third limiting groove 15 is formed in the fixed block 8, the elastic structure 13 is arranged in the second limiting groove 14, one end of the limiting sleeve 12 penetrates through the second limiting groove 14 and is inserted into the third limiting groove 15, the other end of the limiting sleeve 12 abuts against the elastic structure 13, and the limiting sleeve 12 is used to move in the left-right direction.

[0034] Specifically, the first limiting groove 11 is provided with a second limiting groove 14 at both ends, and a set of limiting sleeves 12 and elastic structures 13 are arranged in each second limiting groove 14. Secondly, the third limiting groove 15 is arranged at both ends of the fixed block 8, the front side limiting sleeve 12 is inserted into the front side third limiting groove 15 by the front side elastic structure 13, and the rear side limiting sleeve 12 is inserted into the rear side third limiting groove 15 by the rear side elastic structure 13.

[0035] In this embodiment, when the clamping assembly 3 is installed, the end of the limiting sleeve 12 is pushed away from the first limiting groove 11 to avoid interference between the limiting sleeve 12 and the fixed block 8, and the other end of the limiting sleeve 12 is in abutment with the elastic structure 13, so that the elastic structure 13 is compressed and accumulates energy. The fixed block 8 is inserted into the first limiting groove 11, and then the limiting sleeve 12 is released, so that the elastic structure 13 releases energy to push the end of the limiting sleeve 12 to pass through the second limiting groove 14 and then be inserted into the third limiting groove 15. That is, the limiting sleeve 12 can be used to limit the fixed block 8 to prevent the fixed block 8 from being separated from the first limiting groove 11.

[0036] Optionally, as shown in Figure 6 and Figure 8 , the elastic structure 13 includes a first mounting seat 16, a spring 17, and a first limiting rod 18, the first mounting seat 16 and the first limiting rod 18 are arranged in the second limiting groove 14, one end of the first limiting rod 18 is connected with the first mounting seat 16, the axial direction of the first limiting rod 18 is towards the left and right direction, the spring 17 is sleeved on the first limiting rod 18, the limiting sleeve 12 is coaxially distributed with the first limiting rod 18, and one end of the limiting sleeve 12 is slidingly connected with one end of the first limiting rod 18 and used for abutting against the spring 17.

[0037] Specifically, as shown in Figure 6 , the limiting sleeve 12 is provided with a sliding groove 19, the sliding groove 19 is open on the side close to the first limiting rod 18, and the first limiting rod 18 is inserted into the limiting sleeve 12 from the opening side of the sliding groove 19 and is slidingly connected with the limiting sleeve 12. Secondly, the elastic structure 13 further includes a pushing block 20, the pushing block 20 is connected with the limiting sleeve 12, and compared with directly pushing the limiting sleeve 12, the force acting on the pushing block 20 can be easily applied.

[0038] In the embodiment, when the clamping assembly 3 is installed, one end of the limiting sleeve 12 is pushed away from the first limiting groove 11. On one hand, the other end of the limiting sleeve 12 is slidingly connected to the first limiting rod 18 to guide the movement of the limiting sleeve 12. On the other hand, the other end of the limiting sleeve 12 acts on the spring 17 sleeved on the first limiting rod 18 to drive the spring 17 to compress and accumulate energy. Then, the fixed block 8 is inserted into the first limiting groove 11, the limiting sleeve 12 is released, the spring 17 releases energy to push the limiting sleeve 12 to move reversely until the end of the limiting sleeve 12 is inserted into the third limiting groove 15.

[0039] Optionally, as shown in Figures 3 to 5 the clamping mechanism 9 comprises a clamping seat 21, a clamping cover 22, a second transmission shaft 23, a second mounting seat 24 and a torsional spring 25. The clamping seat 21 is connected with the fixed block 8. The second mounting seat 24 is connected on the clamping seat 21. The clamping cover 22 is rotationally connected with the second mounting seat 24 through the second transmission shaft 23 at one end close to the fixed block 8. The torsional spring 25 is sleeved on the second transmission shaft 23. Holes are formed in the middle of the clamping seat 21 and the clamping cover 22.

[0040] Specifically, one end of the torsional spring 25 is connected with the second mounting seat 24 and the other end is connected with the clamping cover 22. Secondly, the clamping seat 21 and the fixed block 8 can be integrally formed or connected by bolts.

[0041] In the embodiment, when the copper plate is placed on the clamping mechanism 9, the clamping cover 22 is first driven to rotate with the central axis of the second transmission shaft 23 as the axis, so that the clamping cover 22 and the clamping seat 21 are opened at a certain angle, and the torsional spring 25 is twisted to accumulate energy. After the copper plate is placed on the clamping seat 21, the force on the clamping cover 22 is released, the torsional spring 25 returns to its original state to release energy, and drives the clamping cover 22 to rotate to be parallel to the clamping seat 21, so that the clamping cover 22 and the clamping seat 21 clamp and fix the copper plate. When the clamping mechanism 9 is rotated into the micro-etching tank 1, the micro-etching liquid can act on the copper plate through the holes. When the copper plate is taken out from the clamping mechanism 9, the clamping cover 22 is first driven to rotate with the central axis of the second transmission shaft 23 as the axis, so that the clamping cover 22 and the clamping seat 21 are opened at a certain angle, and the copper plate on the clamping cover 22 is taken out.

[0042] Optionally, as shown in Figures 3 to 5 the clamping mechanism 9 further comprises a stop block 26. The clamping seat 21 is provided with the stop block 26 on the front and rear sides. A positioning groove 27 is formed on one side of the clamping cover 22 close to the clamping seat 21.

[0043] In the embodiment, when the copper plate is placed on the clamping mechanism 9, the stop blocks 26 are arranged on both sides of the clamping seat 21, and the copper plate is limited by the two stop blocks 26 when being placed on the clamping seat 21. When the copper plate is taken out from the clamping mechanism 9, the positioning slot 27 is arranged on the lower side of the clamping cover 22, and the copper plate is positioned in the positioning slot 27 of the clamping cover 22, so that the copper plate is limited by the positioning slot 27.

[0044] Optionally, as shown in Figure 9 the driving assembly 4 comprises a first driving mechanism 28 and a second driving mechanism 29, the second driving mechanism 29 is connected with the outer side wall of the micro-etching tank 1 and is in transmission connection with the first driving mechanism 28, the first driving mechanism 28 is used for driving the clamping cover 22 to move away from the clamping seat 21, and the second driving mechanism 29 is used for driving the first driving mechanism 28 to move away from or close to the clamping cover 22.

[0045] In the embodiment, the first driving mechanism 28 is used to push the clamping cover 22, so as to automatically drive the clamping cover 22 and the clamping seat 21 to be at a certain angle. The second driving mechanism 29 is used to drive the first driving mechanism 28, so that the clamping cover 22 which is in transmission connection with the first driving mechanism 28 is close to the clamping seat 21, thereby preventing a large collision between the clamping cover 22 and the clamping seat 21 and avoiding damage of the clamping cover 22, the clamping seat 21 and the copper plate.

[0046] Optionally, as shown in Figure 9 the first driving mechanism 28 comprises a first air cylinder 30 and a second limiting rod 31, the second driving mechanism 29 is in transmission connection with the first air cylinder 30, the first air cylinder 30 is in transmission connection with the second limiting rod 31, one end of the clamping cover 22 away from the fixed block 8 is provided with a fourth limiting slot 32, and the second limiting rod 31 is used for being inserted into the fourth limiting slot 32.

[0047] Specifically, the limiting hole 33 is arranged on the stop block 26 and is coaxially distributed with the fourth limiting slot 32.

[0048] In the embodiment, the first air cylinder 30 is used to push the second limiting rod 31 to move forward and backward in the horizontal direction. When the motor 5 drives the clamping seat 21 to move to the front side or the rear side of the micro-etching tank 1, the first air cylinder 30 is used to push the second limiting rod 31 to be inserted into the fourth limiting slot 32 to limit the clamping cover 22, and the motor 5 is used to drive the clamping seat 21 to continue to rotate, so that the clamping cover 22 and the clamping seat 21 are relatively rotated, and the clamping cover 22 and the clamping seat 21 are at a certain angle.

[0049] Optionally, as shown in Figure 1 and Figure 9As shown, the first driving mechanism 28 further comprises a sliding block 34, the second driving mechanism 29 comprises a second cylinder 35 and a third mounting base 36, a sliding groove 37 is formed on the outer sidewall of the micro-etching tank 1 and extends in the up-down direction, the sliding block 34 is slidingly connected to the sliding groove 37, the third mounting base 36 is connected to the sliding block 34, the first cylinder 30 is connected to the third mounting base 36, and the second cylinder 35 is connected to the outer sidewall of the micro-etching tank 1 and drivingly connected to the third mounting base 36.

[0050] In the present embodiment, with the left view as the front view, when the copper plate is placed on the clamping seat 21, the motor 5 drives the clamping seat 21 to rotate counterclockwise to the front side of the micro-etching tank 1, the second cylinder 35 pushes the sliding block 34, the third mounting base 36 and the first cylinder 30 to move upward to be close to the clamping cover 22, the first cylinder 30 drives the second limiting rod 31 to be inserted into the fourth limiting groove 32 to limit the clamping cover 22. Then, the motor 5 drives the clamping seat 21 to rotate, so that the clamping cover 22 is at a certain angle with the clamping seat 21, to facilitate the placement of the copper plate. After that, the second cylinder 35 pushes the sliding block 34, the third mounting base 36 and the first cylinder 30 to move downward, to drive the clamping cover 22 to be close to the clamping seat 21 away from one end of the fixed block 8. The first cylinder 30 drives the second limiting rod 31 to be separated from the fourth limiting groove 32, and the torsional spring 25 drives the clamping cover 22 to reset.

[0051] Secondly, when the copper plate is taken out from the clamping cover 22, the motor 5 drives the clamping seat 21 to rotate counterclockwise to the rear side of the micro-etching tank 1, the second cylinder 35 pushes the sliding block 34, the third mounting base 36 and the first cylinder 30 to move upward to be close to the clamping cover 22, the first cylinder 30 drives the second limiting rod 31 to be inserted into the fourth limiting groove 32 to limit the clamping cover 22. Then, the motor 5 drives the clamping seat 21 to rotate, so that the clamping cover 22 is at a certain angle with the clamping seat 21, to facilitate the taking out of the copper plate on the clamping cover 22. After that, the second cylinder 35 pushes the sliding block 34, the third mounting base 36 and the first cylinder 30 to continue to move upward, to drive the clamping cover 22 to be close to the clamping seat 21 away from one end of the fixed block 8. The first cylinder 30 drives the second limiting rod 31 to be separated from the fourth limiting groove 32, and the torsional spring 25 drives the clamping cover 22 to reset.

[0052] Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood that those skilled in the art can make modifications to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A copper plate micro-etching device for PCB production lines, characterized in that, The device includes a micro-etching tank (1), a rotating assembly (2), a clamping assembly (3), and a driving assembly (4). The micro-etching tank (1) is filled with micro-etching liquid. The rotating assembly (2) is disposed in the micro-etching tank (1). Multiple clamping assemblies (3) are provided. Each clamping assembly (3) is used to clamp a copper plate. The multiple clamping assemblies (3) are connected to the rotating assembly (2) for transmission. The rotating assembly (2) is used to drive the multiple clamping assemblies (3) to rotate. The driving assembly (4) is used to drive the clamping assemblies (3) to open.

2. The copper plate micro-etching equipment for PCB production lines according to claim 1, characterized in that, The rotating assembly (2) includes a motor (5), a first drive shaft (6), and a connecting block (7). The first drive shaft (6) is rotatably connected to the micro-etched groove (1). The axial direction of the first drive shaft (6) is oriented to the left and right. The motor (5) is connected to the outer wall of the micro-etched groove (1) and rotatably connected to the first drive shaft (6). The connecting block (7) is connected to the first drive shaft (6). A plurality of clamping assemblies (3) are evenly distributed around the outside of the connecting block (7). One end of the plurality of clamping assemblies (3) is connected to the connecting block (7).

3. The copper plate micro-etching equipment for PCB production lines according to claim 2, characterized in that, The clamping assembly (3) includes a fixing block (8) and a clamping mechanism (9). The rotating assembly (2) also includes a limiting mechanism (10). The connecting block (7) has a first limiting groove (11) in the middle. The fixing block (8) is used to be inserted into the first limiting groove (11). The limiting mechanism (10) is connected to the connecting block (7) and is used to limit the fixing block (8).

4. The copper plate micro-etching equipment for PCB production lines according to claim 3, characterized in that, The limiting mechanism (10) includes a limiting sleeve (12) and an elastic structure (13). The connecting block (7) has a second limiting groove (14) at its end, and the fixing block (8) has a third limiting groove (15). The elastic structure (13) is disposed in the second limiting groove (14). One end of the limiting sleeve (12) passes through the second limiting groove (14) and is inserted into the third limiting groove (15). The other end of the limiting sleeve (12) abuts against the elastic structure (13). The limiting sleeve (12) is used to move in the left and right directions.

5. The copper plate micro-etching equipment for PCB production lines according to claim 4, characterized in that, The elastic structure (13) includes a first mounting base (16), a spring (17), and a first limiting rod (18). The first mounting base (16) and the first limiting rod (18) are disposed in the second limiting groove (14). One end of the first limiting rod (18) is connected to the first mounting base (16). The axial direction of the first limiting rod (18) is oriented to the left and right. The spring (17) is sleeved on the first limiting rod (18). The limiting sleeve (12) is coaxially distributed with the first limiting rod (18). One end of the limiting sleeve (12) is slidably connected to one end of the first limiting rod (18) and is used to abut against the spring (17).

6. The copper plate micro-etching equipment for PCB production lines according to claim 5, characterized in that, The clamping mechanism (9) includes a clamping seat (21), a clamping cover (22), a second drive shaft (23), a second mounting seat (24), and a torsion spring (25). The clamping seat (21) is connected to the fixing block (8). The clamping seat (21) is connected to the second mounting seat (24). The end of the clamping cover (22) near the fixing block (8) is rotatably connected to the second mounting seat (24) through the second drive shaft (23). The torsion spring (25) is sleeved on the second drive shaft (23). Both the clamping seat (21) and the clamping cover (22) have a perforation in the middle.

7. The copper plate micro-etching equipment for PCB production lines according to claim 6, characterized in that, The clamping mechanism (9) also includes a stop (26), and the stop (26) is provided on both the front and rear sides of the clamping seat (21). A positioning groove (27) is provided on the side of the clamping cover (22) near the clamping seat (21).

8. The copper plate micro-etching equipment for PCB production lines according to claim 7, characterized in that, The drive assembly (4) includes a first drive mechanism (28) and a second drive mechanism (29). The second drive mechanism (29) is connected to the outer wall of the micro-etched groove (1) and is drivenly connected to the first drive mechanism (28). The first drive mechanism (28) is used to drive the clamping cover (22) away from the clamping seat (21). The second drive mechanism (29) is used to drive the first drive mechanism (28) away from or close to the clamping cover (22).

9. The copper plate micro-etching equipment for PCB production lines according to claim 8, characterized in that, The first driving mechanism (28) includes a first cylinder (30) and a second limiting rod (31). The second driving mechanism (29) is connected to the first cylinder (30) in a transmission manner. The first cylinder (30) is connected to the second limiting rod (31) in a transmission manner. A fourth limiting groove (32) is provided on the clamping cover (22) at one end away from the fixing block (8). The second limiting rod (31) is used to be inserted into the fourth limiting groove (32).

10. The copper plate micro-etching equipment for PCB production lines according to claim 9, characterized in that, The first driving mechanism (28) further includes a slider (34), and the second driving mechanism (29) includes a second cylinder (35) and a third mounting base (36). A sliding groove (37) is provided on the outer wall of the micro-etched groove (1). The sliding groove (37) extends in the vertical direction. The slider (34) is slidably connected to the sliding groove (37). The third mounting base (36) is connected to the slider (34). The first cylinder (30) is connected to the third mounting base (36). The second cylinder (35) is connected to the outer wall of the micro-etched groove (1) and is drivenly connected to the third mounting base (36).

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