Circuit board wet process vertical rotating and swinging device in central driving mode

Abstract

The utility model provides a circuit board wet process vertical rotating and swinging device in a central driving mode. The circuit board wet process vertical rotating and swinging device comprises a working box, a jig and a rotating and swinging unit, the rotary swinging unit comprises an input mechanism, an output mechanism and a driving mechanism; the driving mechanism comprises a second electric cylinder, a motor, a hollow shaft motor, a main shaft and a shaft sleeve; the main shaft is driven by a motor to rotate, the main shaft is sleeved with a shaft sleeve, the side wall, close to the front end, of the main shaft is further provided with a first clamping block, the shaft sleeve is provided with a slit corresponding to the first clamping block, second clamping blocks are symmetrically arranged on the outer side of the slit, and the first clamping block and the second clamping blocks can be staggered or combined together by rotating the shaft sleeve; the hollow shaft motor sleeves the main shaft, and the shaft sleeve is driven by the hollow shaft motor to rotate; a telescopic rod of the second electric cylinder is connected with the motor. According to the device, the updating speed of interface liquid medicine is greatly increased through rotation and swing, the overall machining efficiency is improved, and the defects such as the pool effect of traditional horizontal machining and holes in holes of static machining are overcome.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board processing technology, and in particular relates to a center-driven vertical rotation and swing device for wet circuit board processing. Background Technology

[0002] The manufacturing process of circuit boards is much more complex than that of most products. Industry professionals generally refer to processes that are more closely related to water as wet processes, and processes that are less related to water as dry processes. Wet processes can be further divided into subtractive wet processes, additive wet processes, and cleaning wet processes. Subtractive wet processes, such as developing, etching, and film removal, remove material from the work-in-process using wet methods. Additive wet processes can be divided into chemical plating and electroplating. For example, immersion copper and immersion nickel are chemical plating, while electroplating copper and electroplating tin-lead are electroplating. Cleaning wet processes include water washing and DI water washing.

[0003] Currently, most traditional wet subtractive manufacturing processes, such as developing, etching, stripping, and chemical cleaning, are horizontal processes. Therefore, they inevitably involve a pooling effect, which refers to the phenomenon caused by the accumulation of chemicals such as etchants and developers on the surface of the PCB during spraying. This pooling effect hinders the uniformity of the chemical reaction, causing the lower surface of the workpiece to react faster than the upper surface, and the central area to react faster than the surrounding areas.

[0004] Currently, traditional additive wet processes, whether chemical plating or electroplating, all employ a static processing mode. The risk of static processing is that air bubbles can easily get trapped inside the holes, causing processing defects, especially in products with many small holes and micro-holes. As electronic products become increasingly miniaturized, circuit boards with micro-hole designs are becoming more and more common. In many cases, defects caused by air bubbles inside micro-holes can render an entire circuit board unusable due to a single void in a hole.

[0005] Moreover, both traditional subtractive wet processing and additive wet processing have relatively long production lines, ranging from tens to hundreds of meters in length. This makes them difficult for some R&D-oriented, self-use, or small-to-medium-sized OEM companies to use due to their large footprint. The sheer size of traditional wet processing equipment inevitably leads to other problems, such as high start-up costs, inconvenience for intermittent production, and increased environmental pollution, posing health risks to employees and the surrounding environment, thus increasing the company's waste treatment costs.

[0006] In addition, the existing production equipment has a slow turnover rate of chemical reaction interface solutions, resulting in low processing efficiency. Utility Model Content

[0007] In view of this, the present invention aims to propose a center-driven vertical rotation swing device for wet circuit board manufacturing, which strives to significantly reduce the size of the equipment, reduce the floor space, improve the yield rate, increase processing efficiency, and reduce environmental pollution and enterprise waste costs.

[0008] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0009] A center-driven vertical rotary oscillation device for wet circuit board manufacturing includes a work box, a fixture for placing products, and a rotary oscillation unit. The work box has an open front, and inlets / outlets are located on the left and right side walls respectively. The fixture is disc-shaped and has teeth on its outer periphery. The rotary oscillation unit includes an input mechanism, an output mechanism, and a drive mechanism. The input and output mechanisms are used to import and export the fixture, respectively. The input mechanism is located at the inlet / outlet on the left side of the work box, and the output mechanism is located at the inlet / outlet on the right side of the work box. The drive mechanism includes a second electric cylinder, a motor, a hollow shaft motor, a main shaft, and a bushing. The main shaft is driven to rotate by the motor. A bushing is fitted around the outside of the shaft. A first locking block is also provided on the side wall of the main shaft near the front end. A slit is provided on the bushing corresponding to the first locking block. The first locking block passes through the slit. A second locking block is symmetrically provided on the outside of the slit. Rotating the bushing can separate or combine the first and second locking blocks. A hollow shaft motor is fitted on the main shaft. The bushing is driven to rotate by the hollow shaft motor. The hollow shaft motor is connected to the motor housing. The telescopic rod of the second electric cylinder is connected to the motor and is used to drive the motor and the fixture to swing back and forth. The center of the fixture is provided with a socket for inserting the bushing. A keyway communicating with the socket is provided on the outer periphery of the socket. The first and second locking blocks can pass through the keyway.

[0010] Furthermore, the drive mechanism also includes a slide block, a slide rod, a mounting bracket, and a fixing plate; there are two fixing plates, and the two fixing plates are fixedly connected by two slide rods. One fixing plate is fixed to the rear side of the work box, the slide block is slidably mounted on the slide rod, the motor is mounted on the slide block, the second electric cylinder is horizontally mounted on the other fixing plate, and the extension rod of the second electric cylinder is connected to the slide block; the mounting bracket is mounted on the slide block.

[0011] Furthermore, a speed reducer is also provided on the slide, which is connected to the motor. The shaft of the speed reducer is connected to the main shaft through a coupling, and the axes of the motor and the speed reducer are perpendicular.

[0012] Furthermore, the hollow shaft of the hollow shaft motor has a notch at the end, and the end of the bushing has a third locking block that cooperates with the notch.

[0013] Furthermore, the input and output mechanisms have the same structure, both including a chain support frame, a chain, a driving gear, and a driven gear; the two ends of the chain support frame are rotatably equipped with driving and driven gears, the chain is sleeved on the driving and driven gears, and the end of the chain support frame with the driven gear extends into the work box. The fixture moves in and out of the work box along the chain, and the driving gear is driven by an electric motor.

[0014] Furthermore, both the left end of the input mechanism and the right end of the output mechanism are equipped with lifting mechanisms for raising the left and right ends.

[0015] Furthermore, the lifting mechanism includes a bracket, a first electric cylinder, a chain rod, and an insert rod; the top of the bracket is provided with a first electric cylinder that extends and retracts in a vertical direction, the end of the extension rod of the first electric cylinder is hinged to the upper end of the chain rod, the lower end of the chain rod is provided with an insert rod, and the chain support frame is provided with an elongated hole extending along the length of the chain support frame near the drive gear, and the insert rod is slidably inserted into the elongated hole; the end of the chain support frame with the driven gear is supported by a support.

[0016] Furthermore, long guide plates are provided in the middle of the work box, on both the front and rear sides of the fixture, to prevent the fixture from tipping over when moving in and out.

[0017] Furthermore, a central arc groove is provided above the guide plate, directly opposite the bushing.

[0018] Furthermore, a third electric cylinder is vertically positioned on the top of the work box. The telescopic rod of the third electric cylinder extends into the work box and is connected to an auxiliary gripper, which is positioned directly opposite the top of the fixture.

[0019] Compared with the prior art, the center-driven mode vertical rotation and oscillation device for wet circuit board manufacturing described in this utility model has the following advantages:

[0020] The center-driven vertical rotation and oscillation device for wet circuit board processing described in this invention greatly reduces the space occupied by traditional wet processing equipment, eliminates the pool effect of traditional horizontal processing and the voids in holes of static processing, significantly improves the interface chemical renewal speed through rotation and oscillation, and improves the overall processing efficiency. In addition, this invention is environmentally friendly and has little impact on the health of workers and surrounding residents. Attached Figure Description

[0021] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0022] Figure 1 This is a schematic diagram of a center-driven mode vertical rotation and swing device for wet circuit board manufacturing according to an embodiment of the present invention.

[0023] Figure 2 This is a perspective view of the vertical rotation and oscillation device for wet circuit board manufacturing in the center-driven mode according to an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the drive mechanism described in an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the bushing described in an embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of the lifting mechanism described in an embodiment of the present utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Work box; 1-1. Entrance / Exit;

[0029] 2. Fixture; 2-1. Hollowed-out mounting groove;

[0030] 3B, Rotary swing unit; 3B-1, Input mechanism; 3B-1-1, Chain support frame; 3B-1-2, Chain; 3B-1-3, Driving gear; 3B-1-4, Driven gear; 3B-1-5, Oblong hole; 3B-1-6, Support; 3B-2, Output mechanism; 3B-3, Lifting mechanism; 3B-3-1, Bracket; 3B-3-2, First electric cylinder; 3B-3-3, Chain pull rod; 3B-3-4, Insert rod; 3B-4, Drive mechanism; 3B-4-1, Second electric cylinder; 3B-4-2, Slide block; 3B-4-3, Motor; 3B-4-4, Slide rod; 3B-4-5, Mounting bracket; 3B-4-6, Hollow shaft motor; 3B-4-6-1, Notch; 3B-4-7, Main shaft; 3B-4-7-1, First locking block; 3B-4-8, Bushing; 3B-4-8-1, Slit; 3B-4-8-2, Second locking block; 3B-4-8-3, Third locking block; 3B-4-9, Fixing plate;

[0031] 4. Guide plate; 4-1. Central arc groove;

[0032] 5. Auxiliary mechanisms; 5-1. Third electric cylinder; 5-2. Auxiliary gripper. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] like Figure 1-5As shown, a center-driven vertical rotary oscillation device for wet circuit board manufacturing includes a work box 1, a fixture 2 for placing products, and a rotary oscillation unit 3B. The work box 1 has an open front, and inlets and outlets 1-1 are provided on the left and right side walls of the work box 1 respectively. The fixture 2 is disc-shaped, and teeth are provided on the outer periphery of the fixture 2. The rotary oscillation unit 3B includes an input mechanism 3B-1, an output mechanism 3B-2, and a drive mechanism 3B-4. The input mechanism 3B-1 and the output mechanism 3B-2 are used to import and export the fixture 2, respectively. The input mechanism 3B-1 is located at the work box. The output mechanism 3B-2 is located at the inlet / outlet 1-1 on the left side of the working box 1, and at the inlet / outlet 1-1 on the right side of the working box 1. The drive mechanism 3B-4 includes a second electric cylinder 3B-4-1, a motor 3B-4-3, a hollow shaft motor 3B-4-6, a main shaft 3B-4-7, and a bushing 3B-4-8. The main shaft 3B-4-7 is driven to rotate by the motor 3B-4-3. The bushing 3B-4-8 is fitted around the main shaft 3B-4-7. A first locking block 3B-4-7-1 is also provided on the side wall of the main shaft 3B-4-7 near the front end. The bushing 3B-4-8 has a locking mechanism... The first locking block 3B-4-7-1 is provided with a slit 3B-4-8-1, through which the first locking block 3B-4-7-1 protrudes. A second locking block 3B-4-8-2 is symmetrically provided on the outer side of the slit 3B-4-8-1. The width of the slit 3B-4-8-1 is equal to the sum of the widths of the first locking block 3B-4-7-1 and the second locking block 3B-4-8-2. Rotating the bushing 3B-4-8 can offset or combine the first locking block 3B-4-7-1 and the second locking block 3B-4-8-2; hollow shaft motor 3B-4- The 6 sleeves are mounted on the main shaft 3B-4-7. The sleeve 3B-4-8 is driven to rotate by the hollow shaft motor 3B-4-6, which is connected to the housing of the motor 3B-4-3. The telescopic rod of the second electric cylinder 3B-4-1 is connected to the motor 3B-4-3 and is used to drive the motor 3B-4-3 and the fixture 2 to swing back and forth. The fixture 2 has a central insertion hole for inserting the sleeve 3B-4-8. A keyway communicating with the insertion hole is provided on the outer periphery of the insertion hole. The first locking block 3B-4-7-1 and the second locking block 3B-4-8-2 can pass through the keyway.

[0038] For example, the drive mechanism 3B-4 further includes a slide block 3B-4-2, a slide rod 3B-4-4, a mounting bracket 3B-4-5, and a fixing plate 3B-4-9; there are two fixing plates 3B-4-9, and the two fixing plates 3B-4-9 are fixedly connected by two slide rods 3B-4-4. One fixing plate 3B-4-9 is fixed to the rear side of the work box 1. The slide block 3B-4-2 is slidably mounted on the slide rod 3B-4-4. The motor 3B-4-3 is mounted on the slide block 3B-4-2. The second electric cylinder 3B-4-1 is horizontally mounted on the other fixing plate 3B-4-9. The telescopic rod of the second electric cylinder 3B-4-1 is connected to the slide block 3B-4-2. The mounting bracket 3B-4-5 is mounted on the slide block 3B-4-2.

[0039] Specifically, a speed reducer is also provided on the slide 3B-4-2. The speed reducer is connected to the motor 3B-4-3. The shaft of the speed reducer is connected to the main shaft through a coupling. The axes of the motor and the speed reducer are perpendicular.

[0040] For example, the hollow shaft of the hollow shaft motor 3B-4-6 has a notch 3B-4-6-1 at the end, and the bushing has a third locking block 3B-4-8-3 at the end that cooperates with the notch.

[0041] For example, the input mechanism 3B-1 and the output mechanism 3B-2 have the same structure, both including a chain support frame 3B-1-1, a chain 3B-1-2, a driving gear 3B-1-3, and a driven gear 3B-1-4; the two ends of the chain support frame 3B-1-1 are rotatably provided with the driving gear 3B-1-3 and the driven gear 3B-1-4, the chain 3B-1-2 is sleeved on the driving gear 3B-1-3 and the driven gear 3B-1-4, one end of the chain support frame 3B-1-1 with the driven gear 3B-1-4 extends into the working box 1, the fixture 2 moves in and out of the working box 1 along the chain 3B-1-2, and the driving gear 3B-1-3 is driven by an electric motor.

[0042] For example, the left end of the input mechanism 3B-1 and the right end of the output mechanism 3B-2 are both provided with lifting mechanisms 3B-3 for raising the left and right ends.

[0043] Specifically, the lifting mechanism 3B-3 includes a bracket 3B-3-1, a first electric cylinder 3B-3-2, a chain 3B-1-2 pull rod, and an insert rod 3B-3-4. The top of the bracket 3B-3-1 is provided with a first electric cylinder 3B-3-2 that extends and retracts vertically. The end of the extension rod of the first electric cylinder 3B-3-2 is hinged to the upper end of the chain pull rod. The lower end of the chain pull rod is provided with an insert rod 3B-3-4. The chain support frame 3B-1-1 is provided with an elongated hole 3B-1-5 extending along the length of the chain support frame 3B-1-1 near the drive gear 3B-1-3. The insert rod 3B-3-4 is slidably inserted into the elongated hole 3B-1-5. One end of the chain support frame 3B-1-1 with the driven gear 3B-1-4 is supported by a support 3B-1-6.

[0044] For example, in the middle of the work box 1, there are long strip guide plates 4 on both the front and rear sides of the fixture 2 to prevent the fixture 2 from tipping over when it moves in and out.

[0045] A certain distance is left between the two guide plates to facilitate the jig's back-and-forth movement.

[0046] Specifically, a central arc groove 4-1 is provided above the guide plate 4, directly opposite the bushing 3B-4-8. When the bushing and the main shaft extend into the working box, the bushing can rest on the central arc groove 4-1.

[0047] For example, the top of the work box 1 is also provided with an auxiliary mechanism 5, which includes a third electric cylinder 5-1 and an auxiliary gripper 5-2. The third electric cylinder 5-1 is vertically arranged on the top of the work box. The telescopic rod of the third electric cylinder 5-1 extends into the interior of the work box 1 and is connected to the auxiliary gripper 5-2. The auxiliary gripper is directly facing the top of the fixture 2.

[0048] To facilitate insertion of the bushing into the central insertion hole of the fixture, the end of the bushing is tapered, forming a cone shape.

[0049] Specifically, in this embodiment, the bushing and spindle are located in the center of the work box.

[0050] Working principle:

[0051] When using this device, first place the fixture on the chain of the input mechanism. The teeth of the chain match the edge of the fixture. The chain moves, causing the fixture to move along the chain. The fixture enters the working box and is stopped by a guide plate to prevent it from tipping over. Continue until the fixture rotates to the center of the working box, between the input and output mechanisms. At this point, the lifting mechanism lifts the left end of the input mechanism and the right end of the output mechanism, respectively, so that they contact the left and right sides of the fixture. Continue lifting upwards to raise the fixture a certain distance, so that the center insertion hole of the fixture is aligned with the spindle and the center arc groove. The motor is started, causing the spindle to rotate until the first locking block aligns with the keyway. Then, the hollow shaft motor is started, causing the second locking block to merge with the first, allowing the bushing to be smoothly inserted into the socket. The first and second locking blocks are then locked into the keyway on the fixture. Next, the second electric cylinder pushes the spindle and bushing forward and inserts them into the socket. The hollow shaft motor is then started again, causing the bushing to rotate and disengage the second and first locking blocks, locking the fixture between the two second locking blocks while the first locking block remains in the keyway. Subsequently, the lifting mechanism lowers one end of the chain, at which point the fixture is no longer in contact with the chain. Finally, the motor drives the spindle to rotate, achieving fixture rotation, while the second electric cylinder simultaneously drives the fixture to oscillate back and forth. After processing is completed, lift the left end of the input mechanism and the right end of the output mechanism and make them contact the left and right sides of the fixture respectively; then start the hollow shaft motor to make the bushing rotate, the second clamping block merges with the first clamping block, and the spindle and bushing can be removed by the second electric cylinder; then lower the right end of the output mechanism, and the fixture will be output along the output mechanism.

[0052] The auxiliary mechanism provides support. After the fixture reaches the center of the workpiece box, the top auxiliary gripper is pressed down by the third electric cylinder, securing the fixture through its groove. When the fixture is lifted, the third electric cylinder also rises. When the spindle is inserted into the fixture, the workpiece is held in place and will not tilt. Before machining, simply lift the auxiliary gripper upwards.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A center-driven vertical rotation and oscillation device for wet circuit board manufacturing, characterized in that: The system includes a work box, a fixture for placing the workpiece, and a rotating swing unit. The work box has an open front, and inlets / outlets are located on the left and right side walls respectively. The fixture is disc-shaped and has teeth on its outer circumference. The rotating swing unit includes an input mechanism, an output mechanism, and a drive mechanism. The input and output mechanisms are used to import and export the fixture, respectively. The input mechanism is located at the inlet / outlet on the left side of the work box, and the output mechanism is located at the inlet / outlet on the right side of the work box. The drive mechanism includes a second electric cylinder, a motor, a hollow shaft motor, a main shaft, and a bushing. The main shaft is driven to rotate by the motor. A bushing is fitted around the outside of the shaft. A first locking block is also provided on the side wall of the main shaft near the front end. A slit is provided on the bushing corresponding to the first locking block. A second locking block is symmetrically provided on the outside of the slit. Rotating the bushing can separate or combine the first and second locking blocks. A hollow shaft motor is fitted on the main shaft, and the bushing is driven to rotate by the hollow shaft motor. The telescopic rod of the second electric cylinder is connected to the motor and is used to drive the motor and the fixture to swing back and forth. The fixture has a socket for inserting the bushing in the center. A keyway communicating with the socket is provided on the outer periphery of the socket. The first and second locking blocks can pass through the keyway.

2. The circuit board wet process vertical rotation and oscillation device in center-driven mode according to claim 1, characterized in that: The drive mechanism also includes a slide, a slide rod, a mounting bracket, and a fixing plate; there are two fixing plates, and the two fixing plates are fixedly connected by two slide rods. One fixing plate is fixed to the rear side of the work box, the slide is slidably mounted on the slide rod, the motor is mounted on the slide, the second electric cylinder is horizontally mounted on the other fixing plate, and the extension rod of the second electric cylinder is connected to the slide; the mounting bracket is mounted on the slide.

3. The center-driven mode vertical rotation and oscillation device for wet circuit board manufacturing according to claim 2, characterized in that: The slide is also equipped with a speed reducer, which is connected to the motor. The shaft of the speed reducer is connected to the main shaft through a coupling, and the axes of the motor and the speed reducer are perpendicular.

4. The center-driven mode vertical rotation and oscillation device for wet circuit board manufacturing according to claim 1, characterized in that: The hollow shaft of the hollow shaft motor has a notch at the end, and the end of the bushing has a third locking block that cooperates with the notch.

5. The circuit board wet process vertical rotation and oscillation device in center-driven mode according to claim 1, characterized in that: The input and output mechanisms have the same structure, both including a chain support frame, a chain, a driving gear, and a driven gear. The two ends of the chain support frame are rotatably equipped with driving and driven gears. The chain is sleeved on the driving and driven gears. The end of the chain support frame with the driven gear extends into the work box. The fixture moves in and out of the work box along the chain. The driving gear is driven by an electric motor.

6. The circuit board wet process vertical rotation and oscillation device in center-driven mode according to claim 1, characterized in that: The left end of the input mechanism and the right end of the output mechanism are both equipped with lifting mechanisms for raising the left and right ends.

7. The circuit board wet process vertical rotation and oscillation device in center-driven mode according to claim 6, characterized in that: The lifting mechanism includes a support frame, a first electric cylinder, a chain rod, and an insert rod. The top of the support frame is equipped with a first electric cylinder that extends and retracts vertically. The end of the extension rod of the first electric cylinder is hinged to the upper end of the chain rod. The lower end of the chain rod is equipped with an insert rod. The chain support frame has an elongated hole extending along the length of the chain support frame near the drive gear. The insert rod is slidably inserted into the elongated hole. One end of the chain support frame with the driven gear is supported by a support.

8. The circuit board wet process vertical rotation and oscillation device in center-driven mode according to claim 1, characterized in that: In the middle of the work box, there are long strip guide plates on both the front and rear sides of the fixture to prevent the fixture from tipping over when moving in and out.

9. The circuit board wet process vertical rotation and oscillation device in center-driven mode according to claim 8, characterized in that: A central arc groove is provided above the guide plate, directly opposite the bushing.

10. The center-driven mode vertical rotation and oscillation device for wet circuit board manufacturing according to claim 1, characterized in that: The top of the work box is also equipped with a vertically arranged third electric cylinder. The telescopic rod of the third electric cylinder extends into the work box and is connected to an auxiliary gripper. The auxiliary gripper is directly opposite the top of the fixture.

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