Environment-friendly PCB electroplating equipment

Abstract

The invention relates to the technical field of PCB processing, in particular to environment-friendly PCB electroplating equipment which comprises a workbench, an upper top plate is arranged above the workbench, side supporting plates are symmetrically and fixedly connected to the left side and the right side of the upper top plate, and the lower ends of the two side supporting plates are fixedly connected with the upper end of the workbench. A hydraulic oil cylinder is fixedly installed at the upper end of the upper top plate, the lower end of the hydraulic oil cylinder downwards penetrates through the upper top plate and is fixedly connected with a cross-shaped frame, the lower ends of the four ends of the cross-shaped frame are fixedly connected with four fan-shaped side plates in an annular array, and the lower ends of the inner sides of the four fan-shaped side plates are jointly and fixedly connected with an annular frame. The electroplating equipment disclosed by the invention has the beneficial effects that the electroplating equipment disclosed by the invention can be used for respectively carrying out oil removal, micro-etching, copper plating, pickling, tin plating and feeding and discharging operations on a plurality of groups of PCBs at the same time, so that the processing efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB circuit board processing, and specifically relates to an environment-friendly PCB circuit board electroplating device. Background Art

[0002] The Chinese name of PCB is printed circuit board, also known as printed wiring board. It is an important electronic component, a support for electronic components, and a carrier for the electrical connection of electronic components. During the production process of PCB circuit boards, electroplating operations are required. During the electroplating process of PCB circuit boards, multiple tanks such as degreasing, micro-etching, copper plating, pickling, and tin plating are required. During the electroplating process of PCB circuit boards, some bubbles will adhere to the surface of the PCB circuit board, thus affecting the electroplating effect; and after the PCB circuit board is taken out upward from the electroplating tank, there is liquid remaining on the surface of the PCB circuit board, which is not conducive to subsequent processing. In the existing PCB circuit board electroplating equipment, during the electroplating process, it is necessary to first disassemble the previously electroplated batch of PCB circuit boards before reinstalling the new PCB circuit boards to be electroplated. During the installation and disassembly process of the PCB circuit boards, the equipment cannot perform electroplating operations, resulting in low electroplating efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide an environment-friendly PCB circuit board electroplating device to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An environment-friendly PCB circuit board electroplating device, including a workbench, an upper top plate is arranged above the workbench, side support plates are symmetrically and fixedly connected to the left and right sides of the upper top plate, the lower ends of the two side support plates are fixedly connected to the upper end of the workbench, a hydraulic cylinder is fixedly installed at the upper end of the upper top plate, the lower end of the hydraulic cylinder passes through the upper top plate downward and is fixedly connected to a cross-shaped frame, four sector side plates are fixedly connected in a circular array at the lower ends of the four ends of the cross-shaped frame, a circular frame is fixedly connected to the common lower end inside the four sector side plates, a plurality of electroplating tanks are fixedly installed at the upper end of the workbench in a fan-shaped and equidistant manner, a concave work groove is opened at the upper end of the workbench, a limiting mechanism is installed at the lower end of the cross-shaped frame, a rotating mechanism is rotatably installed outside the limiting mechanism, a plurality of support components are installed in a circular array at the lower end of the side of the rotating mechanism, a clamping mechanism for fixing the PCB circuit board is installed at the lower end of each support component, a shaking transmission mechanism is installed inside the rotating mechanism, and a shaking driving mechanism is installed on the rotating mechanism.

[0005] Preferably, the limiting mechanism includes a regular polygon housing arranged below the cross-shaped frame. Symmetrically fixed to the upper end of the regular polygon housing are connecting plates, the upper ends of which are fixedly connected to the cross-shaped frame. Fixedly connected to the lower end of the regular polygon housing is a disc, and the rotating mechanism is sleeved outside the regular polygon housing.

[0006] Preferably, the rotating mechanism includes a cylinder sleeved outside the two connecting plates. Fixedly sleeved on the outside of the cylinder is an external gear ring, which meshes with a main gear on the side. The main gear is driven by the output shaft of a stepper motor fixedly installed at the upper end of the cross-shaped frame. An annular rotating groove is formed at the lower end of the cross-shaped frame, and the upper end of the cylinder is rotatably connected to the annular rotating groove. Fixedly connected to the lower end of the cylinder is a regular polygon ring plate, and the lower end of the regular polygon ring plate is in rotational contact with the upper end of the disc. A plurality of support components are installed on the side of the regular polygon ring plate in an annular array.

[0007] Preferably, the support component includes support frames distributed in an annular array on the side of the regular polygon ring plate. Symmetrically fixed to both sides of the support frame are concave clamping seats. One of the concave clamping seats close to the regular polygon ring plate is clamped on the side of the disc, and one side of the upper end of this concave clamping seat is fixedly connected to the lower end of the side of the regular polygon ring plate. One of the concave clamping seats far from the regular polygon ring plate is clamped on the annular frame. The two concave clamping seats on both sides of the support frame are respectively rotatably connected to the adjacent disc and annular frame, and the clamping mechanism is installed at the lower end of the support frame.

[0008] Preferably, the clamping mechanism includes a lifting plate arranged inside the support frame. Equally spaced and fixedly connected to the lower end of the lifting plate are a plurality of lifting rods. A return spring is sleeved on the upper end of each lifting rod. The lower end of each lifting rod penetrates downward through the lower end of the support frame and extends to the outside. The lower ends of the plurality of lifting rods are jointly fixedly connected to a concave mounting seat. Fixedly installed on the inner wall of one side plate of the concave mounting seat is a conductive plate. Equally spaced and threadedly installed on the outside of the other side plate of the concave mounting seat are a plurality of locking screws. One end of each locking screw penetrates through the side plate of the concave mounting seat and extends to its inner side. One end of each locking screw inside the concave mounting seat is rotatably connected to a clamping plate through a pin shaft. Symmetrically fixed to the side of the clamping plate away from the conductive plate are guide plates, which penetrate through the side plate of the concave mounting seat.

[0009] Preferably, both ends of the lifting plate are in sliding contact with the two inner side walls of the support frame up and down. The lifting rods are slidably connected to the support frame up and down. The two ends of the return spring are respectively abutted against the support frame and the lifting plate. The guide plates are slidably connected to the side plates of the concave mounting seat.

[0010] Preferably, a regular polygon cavity is formed inside the regular polygon housing. The jitter transmission mechanism includes a crown gear rotatably installed at the bottom of the regular polygon cavity. The crown gear is driven by a motor shaft of a servo motor fixedly installed at the upper end of the regular polygon housing. A plurality of transmission components are equidistantly distributed in a fan shape at the upper end of the crown gear, and the plurality of transmission components are equidistantly installed on the regular polygon housing in a fan shape; The transmission component includes a rotating shaft rotatably installed on the side surface of the regular polygon housing. One end of the rotating shaft penetrates through the side surface of the regular polygon housing and extends into the regular polygon cavity. A driving gear is fixedly sleeved at the end of the rotating shaft inside the regular polygon cavity. The lower end of the driving gear meshes with the crown gear. The other end of the rotating shaft is fixedly connected with a circular block. One side of the circular block away from the rotating shaft is fixedly connected with a docking head. Extrusion inclined surfaces are symmetrically formed at both ends of the side of the docking head away from the circular block.

[0011] Preferably, a plurality of circular grooves are formed through the side surface of the regular polygon ring plate in an annular array. An annular limiting groove is formed inside the circular groove. A plurality of groups of jacks are formed on the outer side surface of the regular polygon ring plate in an annular array. The number of jacks in each group is two. The two jacks in each group are symmetrically distributed up and down near the circular groove. The side surface of the regular polygon ring plate is connected with a plurality of jitter driving mechanisms; The jitter driving mechanism includes a cylinder rotatably installed in the circular groove. A limiting ring is fixedly sleeved on the cylinder. The limiting ring is rotatably connected with the annular limiting groove. Both ends of the cylinder extend to the outside of both ends of the circular groove. A docking groove is formed at one end of the cylinder inside the regular polygon ring plate. A groove is formed on the side wall of the docking groove. A circular slot is formed on the side wall of the groove. Sliding grooves are symmetrically formed at both ends of the side of the circular slot away from the groove. The sliding grooves penetrate through the cylinder. A locking mechanism is installed on the cylinder. A driving component is installed at the end of the cylinder away from the docking groove. The driving component is installed above the inner side of the support frame.

[0012] Preferably, the locking mechanism includes a transmission head slidably installed in the groove. One end of the transmission head penetrates through the groove and extends into the docking groove. Elastic pieces are symmetrically installed at the end of the transmission head away from the docking groove. A sliding rod is arranged between the two elastic pieces. The ends of the two elastic pieces away from the transmission head abut against the inner side wall of the groove. The sliding rod is slidably connected with the circular slot. One end of the sliding rod is fixedly connected with the transmission head. The other end of the sliding rod is symmetrically and fixedly connected with sliding plates. The sliding plates are slidably connected with the sliding grooves. The ends of the sliding plates away from the sliding rod penetrate through the sliding grooves and extend to the outside thereof. The ends of the sliding plates away from the sliding rod are fixedly connected with locking plugs on the side close to the regular polygon ring plate.

[0013] Preferably, the driving assembly includes a round shaft rotatably installed above the inner side of the support frame. Both ends of the round shaft are rotatably connected to the two side walls of the support frame. One end of the round shaft close to the cylinder passes through the side plate of the support frame and is fixedly connected to the cylinder. The cylinder rotates coaxially with the round shaft. A plurality of cams are fixedly sleeved on the round shaft, and the cams are in sliding contact with the upper end of the lifting plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is reasonably arranged and has strong functionality, with the following advantages: 1. The electroplating equipment of the present invention can simultaneously perform degreasing, micro-etching, copper plating, pickling, tin plating, loading and unloading operations on multiple groups of PCB circuit boards respectively, greatly improving the processing efficiency.

[0015] 2. When a group of PCB circuit boards are moved upward from the electroplating tank after completing a processing step, the crown gear is driven to rotate by the motor shaft of the servo motor, so that the shaking transmission mechanism drives the cylinder to rotate, and the cylinder drives the driving assembly to rotate, thereby making the clamping mechanism drive the PCB circuit board to shake up and down, and shaking off the liquid attached to the PCB circuit board.

[0016] 3. After the PCB circuit board is immersed in the liquid in the electroplating tank, the motor shaft of the servo motor is rotated again, so that the shaking transmission mechanism drives the cylinder to rotate, and the cylinder drives the driving assembly to rotate, thereby making the clamping mechanism drive the PCB circuit board to shake up and down in the liquid in the electroplating tank, so that the bubbles on the surface of the PCB circuit board are separated, and thus the electroplating processing of the PCB circuit board can be carried out well. Description of the Drawings

[0017] Figure 1 is a three-dimensional structure diagram of the environmentally friendly PCB circuit board electroplating equipment of the present invention; Figure 2 is a cross-sectional structure diagram of the environmentally friendly PCB circuit board electroplating equipment of the present invention; Figure 3 is Figure 2 a schematic enlarged view of the structure at A in Figure 4 is an exploded view of the cross-shaped frame, annular frame, rotating mechanism, support assembly and clamping mechanism of the present invention; Figure 5 is a cross-sectional view of the bottom view structure of the clamping mechanism of the present invention; Figure 6 is a three-dimensional structure diagram of the rotating mechanism, concave clamping seat and cylinder of the present invention; Figure 7 is a cross-sectional structure diagram of the limiting mechanism, rotating mechanism and concave clamping seat of the present invention; Figure 8 is a cross-sectional view of the limiting mechanism and rotating mechanism of the present invention; Figure 9Cross-sectional view of the regular polygon housing, regular polygon ring plate and cylindrical structure of the present invention; Figure 10 is Figure 9 Schematic enlarged view of the structure at B in Figure 11 Stereogram of the shaking transmission mechanism and transmission component structure of the present invention; Figure 12 Exploded view of the transmission component, cylinder and locking mechanism of the present invention.

[0018] In the figure: 1. Workbench; 11. Upper top plate; 12. Side support plate; 13. Hydraulic cylinder; 14. Cross-shaped frame; 15. Sector side plate; 16. Ring-shaped frame; 17. Electroplating tank; 2. Regular polygon housing; 21. Connecting plate; 22. Disc; 3. Cylinder; 31. External gear ring; 311. Main gear; 32. Regular polygon ring plate; 33. Insertion hole; 34. Support frame; 35. Concave clamping seat; 4. Lifting plate; 41. Lifting rod; 42. Return spring; 43. Concave mounting seat; 44. Conductive plate; 45. Locking screw; 46. Clamping plate; 47. Guide plate; 5. Crown gear; 51. Rotating shaft; 52. Driving gear; 53. Circular block; 54. Docking head; 6. Cylinder; 61. Docking groove; 62. Groove; 63. Circular slot; 64. Slide groove; 7. Transmission head; 71. Elastic piece; 72. Slide rod; 73. Slide plate; 74. Locking plug; 8. Round shaft; 81. Cam. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 to 12 , the present invention provides a technical solution: an environment-friendly PCB circuit board electroplating device, including a workbench 1, an upper top plate 11 is arranged above the workbench 1, side support plates 12 are symmetrically and fixedly connected to the left and right sides of the upper top plate 11, the lower ends of the two side support plates 12 are fixedly connected to the upper end of the workbench 1, a hydraulic cylinder 13 is fixedly installed at the upper end of the upper top plate 11, the number of the hydraulic cylinders 13 can be set as required, the lower end of the hydraulic cylinder 13 passes through the upper top plate 11 downward and is fixedly connected to the cross-shaped frame 14. By setting a flow distributor to evenly distribute hydraulic oil to each hydraulic cylinder, by adjusting the settings of the distributor, it can be ensured that each cylinder body obtains the same flow rate, thereby realizing the synchronous telescopic operation of controlling multiple hydraulic cylinders 13; At the lower ends of the four ends of the cross-shaped frame 14, four sector side plates 15 are fixedly connected in an annular array. The lower ends inside the four sector side plates 15 are jointly fixedly connected to an annular frame 16. A plurality of electroplating tanks 17 are fixedly installed on the upper end of the workbench 1 at equal intervals in a fan shape. A concave working groove is opened on the upper end of the workbench 1. Workers enter the concave working groove to install and disassemble the PCB circuit board. A limiting mechanism is installed at the lower end of the cross-shaped frame 14. A rotating mechanism is rotatably installed on the outside of the limiting mechanism. A plurality of supporting components are installed on the lower end of the side surface of the rotating mechanism in an annular array. A clamping mechanism for fixing the PCB circuit board is installed at the lower end of each supporting component. The plurality of electroplating tanks 17 are respectively arranged directly below the plurality of clamping mechanisms. A shaking transmission mechanism is installed inside the rotating mechanism, and a shaking driving mechanism is installed on the rotating mechanism.

[0021] Please refer to Figure 4 、 Figure 6 and Figure 7 , the limiting mechanism includes a regular polygon housing 2 arranged below the cross-shaped frame 14. The upper end of the regular polygon housing 2 is symmetrically and fixedly connected with connecting plates 21. The upper ends of the connecting plates 21 are fixedly connected to the cross-shaped frame 14. The lower end of the regular polygon housing 2 is fixedly connected with a disc 22. The rotating mechanism is sleeved on the outside of the regular polygon housing 2.

[0022] Please refer to Figures 2 to 4 、 Figures 6 to 8 , the rotating mechanism includes a cylinder 3 sleeved on the outside of the two connecting plates 21. An external gear ring 31 is fixedly sleeved on the outside of the cylinder 3. A main gear 311 meshes with the side surface of the external gear ring 31. The main gear 311 is driven by the output shaft of a stepping motor fixedly installed on the upper end of the cross-shaped frame 14. An annular rotating groove is opened at the lower end of the cross-shaped frame 14. The upper end of the cylinder 3 is rotatably connected to the annular rotating groove. The lower end of the cylinder 3 is fixedly connected with a regular polygon ring plate 32. The lower end of the regular polygon ring plate 32 is in rotational contact with the upper end of the disc 22. A plurality of supporting components are installed on the side surface of the regular polygon ring plate 32 in an annular array.

[0023] Each time the output shaft of the stepping motor rotates once, it drives the main gear 311 to rotate once. The main gear 311 drives the external gear ring 31 to rotate a certain angle. The external gear ring 31 drives the regular polygon ring plate 32 to rotate a certain angle through the cylinder 3. The regular polygon ring plate 32 drives the plurality of supporting components thereon to rotate synchronously. Each time the regular polygon ring plate 32 rotates once, it drives the supporting component to move one unit, that is, the supporting component rotates from above one electroplating tank 17 to above another adjacent electroplating tank 17; After the output shaft of the stepping motor rotates once, it stops for a period of time and then continues to rotate, and so on, so that the regular polygon ring plate 32 drives the supporting component to rotate intermittently, so that each supporting component rotates to directly above each electroplating tank 17 in turn and stops for a period of time above each electroplating tank 17.

[0024] Please refer to Figures 2 to 7 , the support assembly includes support frames 34 distributed in an annular array on the side surface of the regular polygon ring plate 32. Concave clamping seats 35 are symmetrically and fixedly connected to both sides of the support frame 34. One of the concave clamping seats 35 close to the regular polygon ring plate 32 is clamped on the side surface of the disc 22, and one side of the upper end of this concave clamping seat 35 is fixedly connected to the lower end of the side surface of the regular polygon ring plate 32. One of the concave clamping seats 35 far from the regular polygon ring plate 32 is clamped on the annular frame 16. The two concave clamping seats 35 on both sides of the support frame 34 are respectively rotatably connected to the adjacent disc 22 and annular frame 16. The clamping mechanism is installed at the lower end of the support frame 34, and the number of the shaking driving mechanisms is the same as that of the support frames 34.

[0025] The multiple concave clamping seats 35 clamped on the disc 22 are distributed in an annular array, and the multiple concave clamping seats 35 clamped on the annular frame 16 are also distributed in an annular array; When the regular polygon ring plate 32 rotates, it drives the multiple concave clamping seats 35 on its side surface to rotate synchronously. When each concave clamping seat 35 rotates, it drives the support frame 34 on its side surface to rotate. When the support frame 34 rotates, it drives one of the concave clamping seats 35 far from the regular polygon ring plate 32 on it to rotate synchronously. At this time, the two concave clamping seats 35 on both sides of the support frame 34 respectively rotate along the disc 22 and the annular frame 16. Through the cooperation of the multiple concave clamping seats 35, the disc 22 and the annular frame 16 arranged, the support frame 34 is supported, so that the support frame 34 can rotate stably with the regular polygon ring plate 32.

[0026] Please refer to Figure 3 and Figure 5 , the clamping mechanism includes a lifting plate 4 arranged inside the support frame 34. A plurality of lifting rods 41 are equidistantly and fixedly connected to the lower end of the lifting plate 4. A return spring 42 is sleeved on the upper end of each lifting rod 41. The lower end of each lifting rod 41 penetrates downward through the lower end of the support frame 34 and extends to the outside. The lower ends of the plurality of lifting rods 41 are jointly fixedly connected to a concave mounting seat 43. A conductive plate 44 is fixedly installed on the inner wall of one side plate of the concave mounting seat 43. A plurality of locking screws 45 are equidistantly threadedly installed on the outside of the other side plate of the concave mounting seat 43. One end of each locking screw 45 penetrates through the side plate of the concave mounting seat 43 and extends to its inner side. One end of each locking screw 45 located inside the concave mounting seat 43 is rotatably connected to a clamping plate 46 through a pin shaft. A guide plate 47 is symmetrically and fixedly connected to the side of the clamping plate 46 far from the conductive plate 44. The guide plate 47 penetrates through the side plate of the concave mounting seat 43.

[0027] Both ends of the lifting plate 4 are in sliding contact with the two inner side walls of the support frame 34 up and down. The lifting rod 41 is slidably connected to the support frame 34 up and down. Both ends of the return spring 42 are abutted against the support frame 34 and the lifting plate 4 respectively. The guide plate 47 is slidably connected to the side plate of the concave mounting seat 43.

[0028] When it is necessary to load the PCB circuit board, the PCB circuit board is clamped and fixed. The upper end of the PCB circuit board is inserted into the inside of the concave mounting seat 43, and the upper end of the PCB circuit board is located between the conductive plate 44 and the clamping plate 46. At this time, by screwing the locking screw 45 inward along the side surface of the concave mounting seat 43, the locking screw 45 drives the clamping plate 46 to move closer to the PCB circuit board through the pin shaft. The PCB circuit board is clamped and fixed by the cooperation of the clamping plate 46 and the conductive plate 44. When the clamping plate 46 moves, it drives the guide plate 47 to slide along the concave mounting seat 43, so that the clamping plate 46 can move stably. When it is necessary to disassemble the PCB circuit board, the locking screw 45 is screwed out along the side surface of the concave mounting seat 43. The locking screw 45 drives the clamping plate 46 to move away from the PCB circuit board through the pin shaft, so that the clamping plate 46 moves away from the PCB circuit board, thereby releasing the clamping and fixing of the PCB circuit board.

[0029] When the lifting plate 4 is extruded downward by an external force, the lifting plate 4 squeezes the return spring 42. At the same time, the lifting plate 4 drives the concave mounting seat 43 to move downward through the lifting rod 41. When the external force acting on the lifting plate 4 disappears, under the action of the elastic force of the return spring 42, the lifting plate 4 is pushed upward. The lifting plate 4 drives the concave mounting seat 43 to move upward through the lifting rod 41, and so on, so that the concave mounting seat 43 vibrates up and down. During the up and down vibration of the concave mounting seat 43, the PCB circuit board is driven to vibrate up and down synchronously. When the PCB circuit board is in the liquid of the electroplating tank 17, by vibrating the PCB circuit board, the bubbles on the side of the PCB circuit board are separated, so that the PCB circuit board can be electroplated well.

[0030] The conductive plate 44 in each clamping mechanism is electrically connected to the electric slip ring through a wire. An energizing switch is connected in series between the conductive plate 44 and the electric slip ring. The energizing switch can control whether a single conductive plate 44 is energized. The electric slip ring is fixedly installed on the cross-shaped frame 14 through a mounting bracket, and the electric slip ring rotates along the same axis as the cylinder 3; the external wiring of the electric slip ring is connected to one end of the power supply, and the other end of the power supply is electrically connected to the inside of a plurality of electroplating tanks 17 through wires respectively.

[0031] If necessary, when installing and disassembling the PCB circuit board, the conductive plate 44 is powered off through the power switch, so that the conductive plate 44 cannot conduct electricity to the PCB circuit board; When the support frame 34 rotates, it will drive the clamping mechanism at its lower end to rotate synchronously, and drive the PCB circuit board to rotate synchronously through the clamping mechanism.

[0032] Please refer to Figures 7 to 9 , Figure 11 and Figure 12 , a regular polygon cavity is opened on the inner side of the regular polygon housing 2, the shaking transmission mechanism includes a crown gear 5 rotatably installed at the bottom of the regular polygon cavity, the crown gear 5 is driven by the motor shaft of a servo motor fixedly installed at the upper end of the regular polygon housing 2, and a plurality of transmission components are evenly distributed in a fan shape at the upper end of the crown gear 5, and the plurality of transmission components are evenly installed in a fan shape on the regular polygon housing 2; The transmission component includes a rotating shaft 51 rotatably installed on the side of the regular polygon housing 2, one end of the rotating shaft 51 penetrates through the side of the regular polygon housing 2 and extends into the regular polygon cavity, a driving gear 52 is fixedly sleeved at the end of the rotating shaft 51 in the regular polygon cavity, the lower end of the driving gear 52 meshes with the crown gear 5, the other end of the rotating shaft 51 is fixedly connected with a circular block 53, a docking head 54 is fixedly connected to the side of the circular block 53 away from the rotating shaft 51, and pressing inclined surfaces are symmetrically opened at both ends of the side of the docking head 54 away from the circular block 53.

[0033] The number of transmission components is the same as the number of plating tanks 17, and each transmission component is correspondingly arranged above one end of the plating tank 17; The motor shaft of the servo motor drives the crown gear 5 to rotate, the crown gear 5 drives a plurality of driving gears 52 to rotate, the driving gears 52 drive the circular block 53 to rotate through the rotating shaft 51, and the circular block 53 drives the docking head 54 to rotate.

[0034] Please refer to Figures 6 to 12 , a plurality of circular grooves are formed in the side surface of the regular polygon ring plate 32 in an annular array, an annular limiting groove is formed in the inner side of the circular groove, a plurality of groups of jacks 33 are formed in the outer side surface of the regular polygon ring plate 32 in an annular array, the number of each group of jacks 33 is two, and the two jacks 33 in each group are symmetrically distributed up and down near the circular groove, and the side surface of the regular polygon ring plate 32 is connected with a plurality of shaking driving mechanisms; The jitter drive mechanism includes a cylinder 6 rotatably installed in a circular groove. A limit ring is fixedly sleeved on the cylinder 6, and the limit ring is rotatably connected to the annular limit groove. Both ends of the cylinder 6 extend to the outside of both ends of the circular groove. One end of the cylinder 6 inside the regular polygon ring plate 32 is provided with a docking groove 61. A groove 62 is provided on the side wall of the docking groove 61, and a circular slot 63 is provided on the side wall of the groove 62. The circular slot 63 is symmetrically provided with sliding grooves 64 at the upper and lower ends away from the groove 62. The sliding grooves 64 penetrate through the cylinder 6. A locking mechanism is installed on the cylinder 6. One end of the cylinder 6 away from the docking groove 61 is provided with a driving component, and the driving component is installed above the inner side of the support frame 34.

[0035] When the jitter drive mechanism rotates to the upper part of the electroplating tank 17 along with the regular polygon ring plate 32, at this time, the docking groove 61 at the end of the cylinder 6 is clamped with the docking head 54. At this time, when the docking head 54 rotates, it drives the cylinder 6 to rotate synchronously. The cylinder 6 drives the driving component to rotate synchronously. When the cylinder 6 rotates, it drives the limit ring to rotate along the annular limit groove, so that the cylinder 6 can rotate stably along the circular groove; Every time the motor shaft of the servo motor stops, at this time, the docking head 54 is horizontally placed, and at the same time, the docking groove 61 at the end of the cylinder 6 is horizontally placed, ensuring that the docking groove 61 at the end of the cylinder 6 can be accurately clamped with other docking heads 54; During installation and debugging, set the docking head 54 to be horizontally placed. At this time, the position of the motor shaft is the motor shaft stop position, and at the same time, the position of the rotating shaft 51 is the original position; by installing a potentiometer on the rotating shaft 51, the rotation position of the rotating shaft 51 is detected in real time; then by installing an incremental encoder or an absolute encoder on the motor shaft, the rotor position is detected in real time. The controller judges the current position of the motor shaft through the encoder signal and adjusts the motor stop position; adopts PID control or position closed-loop algorithm to ensure that the position of the rotating shaft 51 is at the original position every time the motor shaft stops; When the jitter drive mechanism is removed from the upper part of the electroplating tank 17 along with the regular polygon ring plate 32, the docking groove 61 is separated from the docking head 54.

[0036] Please refer to Figure 9 、 Figure 10 and Figure 12, the locking mechanism includes a transmission head 7 slidably installed in the groove 62. One end of the transmission head 7 passes through the groove 62 and extends into the docking groove 61. At the end of the transmission head 7 away from the docking groove 61, elastic pieces 71 are symmetrically installed. A sliding rod 72 is arranged between the two elastic pieces 71. The ends of the two elastic pieces 71 away from the transmission head 7 are in contact with the inner side wall of the groove 62. The sliding rod 72 is slidably connected with the circular socket 63. One end of the sliding rod 72 is fixedly connected with the transmission head 7. At the other end of the sliding rod 72, sliding plates 73 are symmetrically fixedly connected up and down. The sliding plates 73 are slidably connected with the sliding grooves 64. The ends of the sliding plates 73 away from the sliding rod 72 pass through the sliding grooves 64 and extend to the outside thereof. At the side of the end of the sliding plate 73 away from the sliding rod 72 close to the regular polygon ring plate 32, a locking plug 74 is fixedly connected.

[0037] When the motor shaft of the servo motor stops, the two locking plugs 74 in the locking mechanism are respectively aligned with the two jacks 33; When the docking head 54 is clamped with the docking groove 61, at this time the docking head 54 abuts against the transmission head 7, causing the transmission head 7 to contract into the groove 62. The transmission head 7 presses the elastic pieces 71. At the same time, the transmission head 7 drives the sliding rod 72 to slide inward along the circular socket 63. The sliding rod 72 drives the sliding plate 73 to slide along the sliding groove 64. At the same time, the sliding plate 73 drives the locking plug 74 to move out of the jack 33. At this time, the locking plug 74 and the jack 33 are in a separated state; At this time, the locking mechanism does not lock the cylinder 6, enabling the cylinder 6 to rotate freely; When the docking head 54 is separated from the docking groove 61, at this time the docking head 54 releases the extrusion on the transmission head 7. The transmission head 7 slides outward along the groove 62 into the docking groove 61 under the elastic force of the elastic pieces 71. At this time, a part of the transmission head 7 is still in the groove 62. The transmission head 7 drives the sliding rod 72 to slide back. The sliding rod 72 drives the sliding plate 73 to slide back. The sliding plate 73 drives the locking plug 74 to insert into the jack 33. At this time, the locking mechanism locks the cylinder 6, making the cylinder 6 unable to rotate.

[0038] Please refer to Figures 3 to 5 , the driving assembly includes a circular shaft 8 rotatably installed above the inner side of the support frame 34. The two ends of the circular shaft 8 are respectively rotatably connected with the two side walls of the support frame 34. The end of the circular shaft 8 close to the cylinder 6 passes through the side plate of the support frame 34 and is fixedly connected with the cylinder 6. The cylinder 6 rotates coaxially with the circular shaft 8. A plurality of cams 81 are fixedly sleeved on the circular shaft 8. The cams 81 are in sliding contact with the upper ends of the lifting plates 4.

[0039] When the cylinder 6 rotates, it drives the circular shaft 8 to rotate along the support frame 34. When the circular shaft 8 rotates, it drives the cams 81 to rotate. When the convex part of the cam 81 approaches the lifting plate 4, the cam 81 presses the lifting plate 4 to slide downward along the support frame 34; When the convex part of the cam 81 moves away from the lifting plate 4, the cam 81 loosens the downward extrusion on the lifting plate 4. At this time, under the action of the elastic force of the return spring 42, the lifting plate 4 moves upward. By continuously rotating the cam 81, the lifting plate 4 can continuously move up and down.

[0040] The inner rod of the hydraulic cylinder 13 expands and contracts to drive the cross-shaped frame 14 to move up and down. At the same time, the cross-shaped frame 14 drives the limiting mechanism, the rotating mechanism, the supporting assembly, the clamping mechanism, the shaking transmission mechanism, the transmission assembly, the shaking driving mechanism and the driving assembly to move up and down. At this time, if a PCB circuit board is installed on the clamping mechanism, it will drive the PCB circuit board to move up and down synchronously; when the PCB circuit board is directly above the electroplating tank 17, the PCB circuit board will be immersed downward into the liquid in the electroplating tank 17.

[0041] Working principle: The upper part above the workbench 1 is divided into a loading and unloading area and an electroplating area. The upper part above the concave work groove of the workbench 1 is the loading and unloading area, and the upper part above multiple electroplating tanks 17 is the electroplating area; When the clamping mechanism is in the loading and unloading area, the staff can perform loading and unloading operations on the PCB circuit board, remove the electroplated PCB circuit board from the clamping mechanism, and then install a new PCB circuit board to be electroplated on the clamping mechanism; When the previous multiple groups of PCB circuit boards respectively complete a processing step in their corresponding electroplating tanks 17, at this time, the inner rod of the hydraulic cylinder 13 contracts, and the cross-shaped frame 14 moves upward, so that the clamping mechanism drives the PCB circuit board to move upward out of the electroplating tank 17; At this time, multiple docking slots 61 above the multiple electroplating tanks 17 are all clamped with adjacent docking heads 54. The motor shaft of the servo motor drives the crown gear 5 to rotate. The crown gear 5 drives multiple driving gears 52 to rotate. The driving gear 52 drives the circular block 53 to rotate through the rotating shaft 51. The circular block 53 drives the docking head 54 to rotate. The docking head 54 drives the adjacent cylinder 6 to rotate. The cylinder 6 drives the round shaft 8 to rotate along the support frame 34. When the round shaft 8 rotates, it drives the cam 81 to rotate. Through the cooperation of the cam 81 and the return spring 42, the lifting plate 4 can continuously move up and down. The lifting plate 4 drives the concave mounting seat 43 to move up and down through the lifting rod 41, thereby driving the PCB circuit board to move up and down synchronously, and shaking off the liquid attached to the PCB circuit board; After the PCB circuit board removes the liquid, the servo motor stops running. At this time, the rotating mechanism runs once, so that the regular polygon ring plate 32 drives the multiple supporting components on it to move one unit. The supporting components drive the PCB circuit board to move one unit through the clamping mechanism, that is, the clamping mechanism drives the PCB circuit board to rotate from above one electroplating tank 17 to above an adjacent another electroplating tank 17; at this time, the electroplated PCB circuit board will move from the electroplating area to the loading and unloading area, waiting for loading and unloading operations.

[0042] The inner rod of the hydraulic cylinder 13 extends downward, causing the cross-shaped frame 14 to move downward. At this time, the PCB circuit board that has not completed all electroplating processes will move downward with the clamping mechanism and immerse into the liquid in the electroplating tank 17. The PCB circuit board that has completed the electroplating process will fall downward with the clamping mechanism, facilitating the operator to unload the material. At the same time, the empty clamping mechanism will also move downward synchronously, facilitating the operator to load the material. After the PCB circuit board is immersed in the liquid in the electroplating tank 17, rotate the motor shaft of the servo motor to drive the shaking transmission mechanism to drive the cylinder 6 to rotate. The cylinder 6 drives the driving assembly to rotate, so that the clamping mechanism drives the PCB circuit board to shake up and down in the liquid in the electroplating tank 17, causing the bubbles on the surface of the PCB circuit board to break away, and thus enabling good electroplating processing of the PCB circuit board. After the processing is completed, contract the inner rod of the hydraulic cylinder 13 upward. Repeat this process to enable each group of PCB circuit boards to complete processing in multiple electroplating tanks 17 in sequence. The multiple electroplating tanks 17 are respectively filled with liquids for degreasing, micro-etching, copper plating, pickling, and tin plating. Since each group of PCB circuit boards completes processing in multiple electroplating tanks 17 in sequence, each group of PCB circuit boards completes the operations of degreasing, micro-etching, copper plating, pickling, and tin plating in sequence, and thus completes the electroplating operation of the PCB circuit board.

[0043] For ordinary electroplating equipment, each time a group of PCB circuit boards needs to be processed through degreasing, micro-etching, copper plating, pickling, tin plating, etc. in sequence before the PCB circuit board can be disassembled and a new PCB circuit board can be installed for processing. However, the electroplating equipment of the present invention can simultaneously perform degreasing, micro-etching, copper plating, pickling, tin plating, loading and unloading operations on multiple groups of PCB circuit boards respectively, greatly improving the processing efficiency.

[0044] When the docking head 54 is clamped with the docking groove 61, at this time, the locking plug 74 in the locking mechanism is separated from the jack 33, and the locking mechanism unlocks the locking of the cylinder 6. When the docking head 54 is separated from the docking groove 61, the locking plug 74 in the locking mechanism is inserted into the jack 33, thereby locking the cylinder 6 to prevent the cylinder 6 from rotating randomly, so that the driving assembly will not squeeze the clamping mechanism, the clamping mechanism will not shake up and down, and the clamping mechanism can drive the PCB circuit board to move stably.

[0045] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly PCB circuit board electroplating equipment, comprising a workbench (1), characterized in that: An upper top plate (11) is arranged above the workbench (1), and side support plates (12) are symmetrically fixedly connected to the left and right sides of the upper top plate (11), and the lower ends of the two side support plates (12) are fixedly connected to the upper end of the workbench (1), and a hydraulic cylinder (13) is fixedly installed on the upper end of the upper top plate (11), and the lower end of the hydraulic cylinder (13) passes through the upper top plate (11) downward and is fixedly connected to a cross frame (14), and the lower ends of the four ends of the cross frame (14) are fixedly connected to four fan-shaped side plates (15) in a circular array, and the inner sides of the four fan-shaped side plates (15) are The lower ends are fixedly connected to a ring frame (16); the upper end of the workbench (1) is fan-shaped and equidistantly fixed with a plurality of electroplating tanks (17); the upper end of the workbench (1) is provided with a concave working tank; the lower end of the cross frame (14) is provided with a limit mechanism; the outer side of the limit mechanism is rotatably provided with a rotating mechanism; the lower end of the side of the rotating mechanism is provided with a plurality of support components in a ring array; the lower end of each support component is provided with a clamping mechanism for fixing a PCB circuit board; the inner side of the rotating mechanism is provided with a shaking transmission mechanism; the rotating mechanism is provided with a shaking drive mechanism.

2. The environmentally friendly PCB electroplating equipment according to claim 1, characterized in that: The limiting mechanism comprises a regular polygonal shell (2) arranged below the cross-shaped frame (14); the upper end of the regular polygonal shell (2) is symmetrically fixedly connected to a connecting plate (21); the upper end of the connecting plate (21) is fixedly connected to the cross-shaped frame (14); the lower end of the regular polygonal shell (2) is fixedly connected to a disc (22); and the rotating mechanism is sleeved on the outer side of the regular polygonal shell (2).

3. The environmentally friendly PCB electroplating equipment according to claim 2, characterized in that: The rotating mechanism comprises a cylinder (3) sleeved on the outside of two connecting plates (21), an outer gear ring (31) is fixedly sleeved on the outer side of the cylinder (3), a main gear (311) is meshed on the side of the outer gear ring (31), and the main gear (311) is driven by the output shaft of a stepper motor fixedly mounted on the upper end of a cross frame (14), an annular rotating groove is formed at the lower end of the cross frame (14), the upper end of the cylinder (3) is rotatably connected to the annular rotating groove, a regular polygonal ring plate (32) is fixedly connected to the lower end of the cylinder (3), the lower end of the regular polygonal ring plate (32) is in rotational contact with the upper end of the disc (22), and a plurality of supporting components are mounted on the side of the regular polygonal ring plate (32) in an annular array.

4. The environmentally friendly PCB electroplating equipment according to claim 3 is characterized by: The support assembly comprises a support frame (34) distributed in an annular array on the side of a regular polygonal ring plate (32), and concave clamping seats (35) are symmetrically fixedly connected to the two sides of the support frame (34), wherein a concave clamping seat (35) close to the regular polygonal ring plate (32) is clamped on the side of the disk (22), and one side of the upper end of the concave clamping seat (35) is fixedly connected to the lower end of the side of the regular polygonal ring plate (32), wherein a concave clamping seat (35) away from the regular polygonal ring plate (32) is clamped on the annular frame (16), and the two concave clamping seats (35) on the two sides of the support frame (34) are rotatably connected to the adjacent disk (22) and the annular frame (16), and the clamping mechanism is installed at the lower end of the support frame (34).

5. The environmentally friendly PCB circuit board electroplating equipment according to claim 4 is characterized in that: The clamping mechanism comprises a lifting plate (4) arranged on the inner side of a support frame (34), a plurality of lifting rods (41) are fixedly connected to the lower end of the lifting plate (4) at equal intervals, a return spring (42) is sleeved on the upper end of each lifting rod (41), the lower end of each lifting rod (41) passes downward through the lower end of the support frame (34) and extends to the outside, the lower ends of the plurality of lifting rods (41) are fixedly connected to a concave mounting seat (43), and a conductive plate (42) is fixedly installed on the inner wall of a side plate of the concave mounting seat (43). 4), a plurality of locking screws (45) are equidistantly threadedly installed on the outer side of the other side plate of the concave mounting seat (43), one end of each locking screw (45) passes through the side plate of the concave mounting seat (43) and extends to the inner side thereof, one end of each locking screw (45) located on the inner side of the concave mounting seat (43) is rotatably connected to a clamping plate (46) through a pin shaft, and a guide plate (47) is symmetrically fixedly connected to the side of the clamping plate (46) away from the conductive plate (44), and the guide plate (47) passes through the side plate of the concave mounting seat (43).

6. The environmentally friendly PCB circuit board electroplating equipment according to claim 5, characterized in that: The two ends of the lifting plate (4) are respectively in vertical sliding contact with the two inner side walls of the support frame (34); the lifting rod (41) is vertically slidably connected with the support frame (34); the two ends of the return spring (42) are respectively in contact with the support frame (34) and the lifting plate (4); and the guide plate (47) is slidably connected with the side plate of the concave mounting seat (43).

7. The environmentally friendly PCB circuit board electroplating equipment according to claim 2, characterized in that: A regular polygonal cavity is formed on the inner side of the regular polygonal shell (2); the shaking transmission mechanism comprises a crown gear (5) rotatably mounted on the bottom of the regular polygonal cavity; the crown gear (5) is driven by a motor shaft of a servo motor fixedly mounted on the upper end of the regular polygonal shell (2); a plurality of transmission components are evenly distributed in a fan shape on the upper end of the crown gear (5); and the plurality of transmission components are evenly mounted on the regular polygonal shell (2) in a fan shape; The transmission assembly comprises a rotating shaft (51) rotatably mounted on the side of the regular polygonal shell (2), one end of the rotating shaft (51) passes through the side of the regular polygonal shell (2) and extends into the regular polygonal cavity, one end of the rotating shaft (51) in the regular polygonal cavity is fixedly sleeved with a driving gear (52), the lower end of the driving gear (52) is meshed with the crown gear (5), the other end of the rotating shaft (51) is fixedly connected with a circular block (53), the side of the circular block (53) away from the rotating shaft (51) is fixedly connected with a docking joint (54), and the two ends of the docking joint (54) away from the circular block (53) are symmetrically provided with extrusion inclined surfaces.

8. The environmentally friendly PCB electroplating equipment according to claim 3 is characterized by: The side surface of the regular polygonal ring plate (32) is provided with a plurality of circular grooves in an annular array, the inner side of the circular groove is provided with an annular limit groove, the outer side surface of the regular polygonal ring plate (32) is provided with a plurality of groups of plug holes (33) in an annular array, each group of plug holes (33) has two plug holes, and the two plug holes (33) in each group are symmetrically distributed near the circular groove, and the side surface of the regular polygonal ring plate (32) is connected to a plurality of shaking drive mechanisms; The shaking drive mechanism comprises a cylinder (6) rotatably mounted in the circular groove, a limit ring is fixedly sleeved on the cylinder (6), the limit ring is rotatably connected to the annular limit groove, two ends of the cylinder (6) extend to the outside of the two ends of the circular groove, one end of the cylinder (6) located on the inner side of the regular polygonal ring plate (32) is provided with a docking groove (61), a groove (62) is provided on the side wall of the docking groove (61), a circular slot (63) is provided on the side wall of the groove (62), a sliding groove (64) is symmetrically provided at the end of the circular slot (63) away from the groove (62), and the sliding groove (64) passes through the cylinder (6), a locking mechanism is installed on the cylinder (6), and a driving component is installed at the end of the cylinder (6) away from the docking groove (61), and the driving component is installed on the upper part of the inner side of the support frame (34).

9. The environmentally friendly PCB circuit board electroplating equipment according to claim 8, characterized in that: The locking mechanism comprises a transmission head (7) slidably mounted in the groove (62), one end of the transmission head (7) passes through the groove (62) and extends into the docking groove (61), one end of the transmission head (7) away from the docking groove (61) is symmetrically mounted with a spring sheet (71), a slide bar (72) is arranged between the two spring sheets (71), one end of the two spring sheets (71) away from the transmission head (7) abuts against the inner side wall of the groove (62), the slide bar (72) is slidably connected to the circular slot (63), one end of the slide bar (72) is fixedly connected to the transmission head (7), the other end of the slide bar (72) is symmetrically fixedly connected with a slide plate (73) in an upper and lower direction, the slide plate (73) is slidably connected to the slide groove (64), one end of the slide plate (73) away from the slide bar (72) passes through the slide groove (64) and extends to the outside thereof, and one end of the slide plate (73) away from the slide bar (72) is fixedly connected to a locking plug (74) on one side close to the regular polygonal ring plate (32).

10. The environmentally friendly PCB circuit board electroplating equipment according to claim 8, characterized in that: The driving assembly comprises a circular shaft (8) rotatably mounted on the upper inner side of the support frame (34); the two ends of the circular shaft (8) are rotatably connected to the two side walls of the support frame (34); the end of the circular shaft (8) close to the cylinder (6) passes through the side plate of the support frame (34) and is fixedly connected to the cylinder (6); the cylinder (6) and the circular shaft (8) rotate coaxially; a plurality of cams (81) are fixedly sleeved on the circular shaft (8); and the cams (81) are in sliding contact with the upper end of the lifting plate (4).

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