Circuit board chemical nickel-gold system

Abstract

The utility model discloses a circuit board chemical nickel and gold plating system, which comprises a feeding device, a nickel plating device, a clamp, a feeding device and a gold plating device, a material plate is fed through the feeding device and is vertically overturned, the clamp is used for clamping the material plate, a nickel plating pool in the nickel plating device is loaded with chemical liquid for chemical nickel plating, and the feeding device is used for feeding the material plate. The mechanical arm mechanism is used for clamping a clamp and is fixedly installed in the conveying mechanism, the conveying mechanism drives the clamp and a material plate to be transmitted in the nickel plating pool, the feeding device comprises an overturning assembly and a feeding assembly, and the material plate is overturned through the discharging mechanism to be in a horizontal state and is transmitted in the direction away from the overturning assembly. And finally, the gold plating device is used for conveying in the horizontal direction and plating gold through spraying. According to the full-automatic chemical nickel plating device, full-automatic chemical nickel plating is achieved, labor is saved, meanwhile, production efficiency is improved, nickel plating uniformity is improved, quality is improved, meanwhile, the full-automatic chemical nickel plating device has the advantage of being high in adaptability, products of different sizes can be machined, the nickel plating uniformity is improved, and production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of electroless nickel plating, in particular to an electroless nickel and gold system for circuit boards. Background Technique

[0002] In traditional electroless nickel and gold production, generally, workers manually load the board materials into the basket or send them into the equipment for production through the way of threading with a hanging tool. The manual production is time-consuming and laborious, the process is complicated, the board surface is easy to be scratched, and the production cost is high and the production efficiency is low. Moreover, in the above production method, the board materials are almost in a stacked state and then immersed in the nickel plating bath, which may lead to uneven nickel plating and affect the product quality. In order to improve the production efficiency and the quality of nickel plating, automated equipment is required for electroless nickel plating to improve the production efficiency.

[0003] At the same time, chemical gold plating is achieved by contacting the chemical gold plating solution with the gold plating on the product surface and ion replacement, so as to produce a gold plating layer on the product surface. The cost of the chemical gold plating solution is relatively high. In order to increase the product profit, it is necessary to reduce the production cost, reduce the replacement amount of gold plating while ensuring uniform gold plating, and reduce the volatilization of the chemical gold plating solution, recycle it and reduce the loss.

[0004] Moreover, according to different products to be used, the equipment cannot be adapted to different sizes of board materials at the same time. If customized automated equipment is required for each size, it will undoubtedly greatly increase the cost, and at the same time, the problem of the placement site of the equipment needs to be considered. Therefore, the general adaptability of the equipment is a technical problem to be overcome currently. Content of the Utility Model

[0005] The purpose of the utility model is to provide an electroless nickel and gold system for circuit boards, which solves the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An electroless nickel and gold system for circuit boards, including a feeding device, a nickel plating device, a feeding device and a gold plating device arranged in sequence:

[0007] The feeding device includes a feeding mechanism and a flipping mechanism arranged in sequence;

[0008] The nickel plating device is loaded with electroless nickel plating solution and contacts and reacts with the board material in a vertical state for electroless nickel plating; a fixture used in cooperation with the nickel plating device, the fixture includes a connecting bracket and a clamping component installed on the connecting bracket;

[0009] The feeding device includes a flipping component and a feeding component arranged in sequence;

[0010] The gold plating device chemically gold-plates the board material in a horizontal transportation state by spraying.

[0011] Preferably, the gold plating device comprises a working box and a spraying assembly. The spraying assembly includes a pressure pump, a filter, a heat exchange barrel, and a spray head located in the working box, which are connected in sequence. A roller conveying mechanism is arranged in the working box for conveying the material plate. A liquid tank is also arranged in the working box at the bottom of the working box, and the liquid tank is connected to the input end of the pressure pump through a pipeline. The output end of the feeding assembly is connected to the input end of the roller conveying mechanism. The spray head includes an upper spray head and a lower spray head. Among them, the upper spray head is located above the roller conveying mechanism, and the lower spray head is located below the roller conveying mechanism. Both the upper spray head and the lower spray head are connected to the output end of the heat exchange barrel, and the upper spray head or the lower spray head uniformly sprays the material plate passing on the roller conveying mechanism.

[0012] Preferably, a first manipulator is arranged between the feeding device and the nickel plating device, and a second manipulator is arranged between the nickel plating device and the feeding device.

[0013] Preferably, a plurality of first roller assemblies arranged side by side, a jacking assembly, a aligning assembly, and an intercepting assembly are arranged on the feeding mechanism. The flipping mechanism includes a feeding frame, a flipping frame, and a connecting rod assembly. One end of the flipping frame is rotatably connected to the feeding frame through a first rotating rod. The connecting rod assembly includes a lifting module and a movable seat arranged on the top of the lifting module. The movable seat is rotatably connected with a first connecting rod. A connecting portion is arranged at the bottom of the flipping frame, and the end of the first connecting rod away from the movable seat is rotatably connected to the connecting portion.

[0014] Preferably, the clamping assembly includes a guiding portion, a transmission rod, a fixed tube, a sleeve, and a spring which are cooperatively installed. A clamping portion is arranged at the bottom of the fixed tube for clamping the material plate. External threads are arranged at the top of the fixed tube and are threadedly connected with the connecting bracket. A flat milling surface is also arranged on the fixed tube. A guiding hole adapted to the flat milling surface is arranged on the guiding portion. The top of the fixed tube is inserted into the guiding hole, and the flat milling surface abuts against the inner wall of the guiding hole. The guiding portion is fixedly installed at the bottom of the connecting bracket. The transmission rod penetrates through the connecting bracket and then is inserted into the fixed tube. The sleeve is sleeved on the circumferential outer side of the fixed tube. Symmetrically arranged fixing portions are arranged at the bottom of the transmission rod. Two strip holes are arranged on the fixed tube. The two fixing portions respectively pass through the two strip holes and are fixedly connected with the top of the sleeve. The spring is sleeved on the circumferential outer side of the fixed tube, and both ends of the spring respectively abut against the bottom surface of the guiding portion and the top surface of the sleeve. Two clamping portions are movably connected to the bottom of the fixed tube, and the two rotating members form a clamping mechanism. A pin is arranged at the bottom of the sleeve, and the pin is located in the gap between the two rotating members. The gap between the two rotating members is in a conical shape that gradually becomes smaller from bottom to top.

[0015] Preferably, the nickel plating device includes a nickel plating bath, a transmission mechanism used in cooperation with the nickel plating bath, and a manipulator mechanism disposed above the nickel plating tank. The nickel plating bath is loaded with a chemical liquid for electroless nickel plating. The manipulator mechanism is used to clamp a fixture and is fixedly installed in the transmission mechanism. The transmission mechanism drives the fixture and the material plate to transmit in the nickel plating bath. The transmission mechanism includes a mounting bracket and transmission components respectively disposed on both sides of the mounting bracket. The transmission component includes a synchronous pulley, a transmission belt, and a third driving motor. A driving wheel is provided at the output end of the third driving motor. The inner sides of the transmission belts are respectively fitted with the driving wheel and the synchronous pulley, and the transmission belts are in a ring shape, and the nickel plating tank is located between the two transmission components.

[0016] Preferably, the transmission mechanism further includes a second lifting module, and the top of the second lifting module is connected to the mounting bracket.

[0017] Preferably, the manipulator mechanism includes a three-axis transmission module and a clamping mechanism disposed at the bottom of the three-axis module. An unfolding component is provided on the clamping mechanism.

[0018] Preferably, the unfolding component includes a propulsion module, a frame body, and two sliders. A branch is further provided on the frame body. A first strip-shaped groove and a sliding member slidably connected to the first strip-shaped groove are provided on the branch. A chute is provided in the frame body, and the chute is perpendicular to the first strip-shaped groove. The two sliders are symmetrically disposed in the chute. The slider is further provided with a connecting portion. A second strip-shaped groove through which the connecting portion can pass is provided on the frame body. After the connecting portion passes through the second strip-shaped groove, it is rotatably connected to a transmission rod. One end of the transmission rod away from the connecting portion is rotatably connected to the sliding member. A third strip-shaped groove is provided on the frame body. The driving end of the propulsion module is connected to a synchronous connecting member, and the synchronous connecting member passes through the third strip-shaped groove and is fixedly connected to any one of the sliders.

[0019] Preferably, the flipping component includes a discharge frame, a receiving member and a propulsion cylinder provided on the discharge frame. A second rotating rod is rotatably connected to the discharge frame. The receiving member is fixedly provided on the second rotating rod. The propulsion cylinder is located below the second rotating rod, and the fixed end of the propulsion cylinder is rotatably connected to the discharge frame. The movable end of the propulsion cylinder is rotatably connected to a second connecting rod, and one end of the second connecting rod away from the propulsion cylinder is fixedly connected to the second rotating rod. The feeding component includes a plurality of third roller assemblies provided on the discharge frame.

[0020] Preferably, the gold plating device further includes a roller assembly and a air shower device provided in the working box. The roller assembly is connected to the end of the roller conveyor mechanism, and the air shower device is located at the transmission end of the roller assembly.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] 1. The utility model realizes the feeding of the material plate, chemical nickel plating in the nickel plating bath and discharging by setting a feeding device, a nickel plating device and a feeding device, achieving the beneficial effect of fully automatic nickel plating and further improving the production efficiency. Moreover, through the transmission mechanism used in conjunction with the nickel plating bath, multiple material plates are driven to move in the nickel plating bath, enabling the nickel ions to fully contact the material plates, making the nickel plating effect more uniform and enhancing the nickel plating effect.

[0023] 2. The utility model sets a fixture, which can clamp different material plates. Moreover, the fixture is used in conjunction with the nickel plating device, enabling different-sized material plates to be used without changing the equipment, further improving the universality of adaptability and solving the problems of site and production cost.

[0024] 3. The utility model sets a spraying assembly. The upper spraying nozzle and the lower spraying nozzle uniformly spray the material plate passing through the roller conveying mechanism. The uniform spraying of the chemical gold plating solution can ensure uniform gold plating on the surface of the material plate, while reducing the replacement amount of gold ions, achieving the effect of cost reduction. At the same time, through the pressure pump, filter, heat exchange barrel and liquid tank, a circulation system is formed to reduce the volatilization of the chemical gold plating solution and further save the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the utility model;

[0026] Figure 2 is a partial structural schematic diagram of the utility model

[0027] Figure 3 is a schematic structural diagram of the feeding device of the utility model;

[0028] Figure 4 is a partial structural schematic of the feeding device of the utility model Figure 1 ;

[0029] Figure 5 is a partial structural schematic of the feeding device of the utility model Figure 2 ;

[0030] Figure 6 is a partial structural schematic of the feeding device of the utility model Figure 3 ;

[0031] Figure 7 is a partial structural schematic of the feeding device of the utility model Figure 4 ;

[0032] Figure 8 is a partial structural schematic of the feeding device of the utility model Figure 5 ;

[0033] Figure 9 is a partial structural schematic of the feeding device of the utility modelFigure 6 ;

[0034] Figure 10 This is a schematic diagram of a partial structure of the feeding device of the present utility model Figure 7 ;

[0035] Figure 11 This is a schematic diagram of a partial structure of the manipulator mechanism of the present utility model Figure 1 ;

[0036] Figure 12 This is a schematic diagram of a partial structure of the manipulator mechanism of the present utility model Figure 2 ;

[0037] Figure 13 This is a schematic diagram of a partial structure of the manipulator mechanism of the present utility model Figure 3 ;

[0038] Figure 14 This is a schematic diagram of the structure of the fixture of the present utility model;

[0039] Figure 15 This is a schematic diagram of a partial structure of the nickel plating device of the present utility model;

[0040] Figure 16 This is a schematic diagram of the structure of the feeding device of the present utility model;

[0041] Figure 17 This is a schematic diagram of the structure of the gold plating device of the present utility model Figure 1 ;

[0042] Figure 18 This is a schematic diagram of the structure of the gold plating device of the present utility model Figure 2 ;

[0043] Figure 19 This is a cross-sectional view of the gold plating device of the present utility model. Specific embodiments

[0044] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0045] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] Please refer to Figures 1 to 16 , an embodiment provided by the present utility model: a chemical nickel-gold system for a circuit board. The feeding device includes a feeding mechanism and a flipping mechanism arranged in sequence. The feeding mechanism 100 includes a feeding frame 101. A plurality of groups of first roller assemblies 110, a driving assembly 120, a jacking assembly 130, a aligning assembly 140, and an intercepting assembly 150 are arranged on the feeding frame 101. The first roller assembly 110 includes a first rotating shaft 111, a plurality of rollers 112 arranged on the first rotating shaft 111, and a first transmission gear 113 arranged at the end of the first rotating shaft 111. The first rotating shaft 111 is rotatably connected to the feeding frame 101 through a bearing, and multiple groups of first roller assemblies 110 are arranged in parallel. The driving assembly 120 includes a first driving motor 121 and a synchronous chain belt 122. The first driving motor 121 is linked to the first transmission gears 113 on a plurality of first roller assemblies 110 through the synchronous chain belt 122. When the first driving motor 121 rotates, it is transmitted in cooperation with the plurality of first transmission gears 113 through the synchronous chain belt 122 to achieve synchronous rotation of the plurality of first rotating shafts 111. The material plate is carried on the plurality of first rollers 112, and the plurality of first rollers 112 rotate synchronously, which can ensure that the material plate is transmitted in a stable direction and prevent the material plate from turning during transmission, resulting in inaccurate subsequent positioning.

[0047] The jacking assembly 130 is located at the bottom of multiple groups of first roller assemblies 110. The jacking assembly 130 includes a first lifting module 131 and a plurality of lifting parts 132 arranged on the top of the first lifting module 131. A plurality of pulleys 133 are movably connected to each lifting part 132. The first lifting module 131 drives the plurality of lifting parts 132 to move upward. The plurality of lifting parts 132 pass through the gap between two adjacent first roller assemblies 110 from bottom to top, and the pulleys 133 jack up the material plate to separate the material plate from the first rollers 112, preventing the first rollers 112 from continuously transmitting the material plate.

[0048] The interception assembly 150 includes a second lifting module 151 and a baffle 152 arranged on the top of the second lifting module 151. The interception mechanism 150 is located at the end of the transmission area of ​​multiple first roller assemblies 110; in this embodiment, the baffle 152 is located between the last two groups of first roller assemblies 110, and the second lifting module 151 drives the baffle 152 to rise upward. The baffle 152 is used to block the material plate and perform a positioning. The first lifting module 131 drives the multiple lifting parts 132 to transmit upward, and the multiple baffles 152 pass through the gap between two adjacent first roller assemblies 110 from bottom to top. The pulley 133 lifts the material plate to make the material plate and the first roller 112 disengage from each other.

[0049] The interception component 150 also includes a sensor 153, which is fixedly mounted on the feeder frame 101. When the sensor 153 detects that the material plate is above the sensor 153, the sensor 153 feeds back to the control system, and the control system can control the second lifting module 151 to drive the baffle 152 to rise upward to block the material plate.

[0050] The straightening component 140 includes a synchronous opening and closing module 141 and two movable seats 142 arranged on the synchronous opening and closing module 141. The two movable seats 142 can be synchronously driven in opposite or opposite directions. An extension portion 143 is provided on each movable seat 142. The extension portion 143 extends upward from bottom to top between two adjacent first roller assemblies 110 and is connected to a pressure plate 144. The pressure plate 144 is also provided with an avoidance groove 145 that is adapted to the shape of the first roller assembly 110 and the lifting portion 132. The avoidance groove 145 is used to avoid the first roller assembly 110 and the lifting portion 132 to prevent the pressure plates 144 from contacting and blocking each other when driving in opposite or opposite directions. When the two pressure plates 144 are driven in opposite directions, they contact with both sides of the material plate, so that the material plate is driven toward the center direction, thereby realizing secondary positioning, which is convenient for the mechanical equipment to clamp the material plate and transmit it to the flipping mechanism 200.

[0051] Furthermore, after a material plate enters the turning mechanism 200 , the interception assembly 150 intercepts the next material plate to prevent two or more material plates from entering the turning mechanism 200 at the same time.

[0052] The flipping mechanism 200 includes a flipping frame 202 and a connecting rod assembly 230 disposed on the feeding rack 101. One end of the flipping frame 202 is rotatably connected to the feeding rack 101 through a first rotating rod 103. The connecting rod assembly 130 includes a third lifting module 231 and a movable seat 232 disposed on the top of the third lifting module 231. The movable seat 232 is rotatably connected with a first connecting rod 233. A connecting portion 204 is disposed at the bottom of the flipping frame 202. One end of the first connecting rod 233 away from the movable seat 232 is rotatably connected to the connecting portion 204. When the third lifting module 231 drives the upward transmission of the movable seat 232, the movable seat 232 rotates with the connecting rod 233. At the same time, the connecting portion 202 rotates with the connecting rod 233. The connecting rod 233 gives the flipping frame 202 an obliquely upward thrust, and the flipping frame 202 rotates around the first rotating rod 203 to achieve a 90-degree flip. When the third lifting module 231 drives the downward transmission of the movable seat 232, the connecting rod 233 gives the flipping frame 202 an obliquely downward pulling force, and the flipping frame 202 rotates around the rotating rod 203 to reset. The material plate is fixed on the flipping frame 202, and a 90-degree vertical flip can be achieved through the flipping frame 202.

[0053] A second driving motor 205, a plurality of second roller assemblies 210, a supporting assembly 220 and a clamping assembly 240 are disposed on the flipping frame 202. The supporting assembly 220 and the clamping assembly 240 are respectively disposed at both ends of the flipping frame 202, and the clamping assembly 240 is close to one side of the first rotating rod 203. The supporting assembly 220 and the clamping assembly 240 can cooperate with each other to fix the connection between the material plate and the flipping frame 203.

[0054] Each second roller assembly 210 includes a second rotating shaft 211, a plurality of rollers 12 disposed on the second rotating shaft 211 and a second transmission gear 213 fixedly connected to the second rotating shaft 211. A transmission gear 13 is also disposed on the rotating shaft 11. The second driving motor 205 is linked with a plurality of transmission gears 13 through a timing belt 206. When the third lifting module 231 is lifted to the upper end, at this time, the flipping frame 202 is placed horizontally. The material plate moves from the feeding mechanism 100 towards the flipping mechanism 200. The material plate abuts against the second roller 212. The second driving motor 205 rotates and drives the second transmission gear 213, the second rotating shaft 211 and a plurality of second rollers 212 through the timing belt 206. The second rollers 212 drive the material plate to move towards the center of the flipping frame 202.

[0055] The supporting assembly 220 includes a first propulsion module 221 and a supporting block 222 disposed at the movable end of the first propulsion module 221. The propulsion direction of the first propulsion module 221 is perpendicular to the transmission direction of the second roller assembly 210. When the flipping frame 202 is vertically flipped, the support 222 is used to carry the bottom of the material plate to prevent the material plate from slipping downward and prevent the material plate from detaching from the flipping frame 202 during the flipping process.

[0056] The clamping assembly 240 includes a second propulsion module 241, a mounting plate 242, and a plurality of rotary cylinders 243. The movable end of the second propulsion module 241 is connected to the mounting plate 242, and the plurality of rotary cylinders 243 are mounted on the mounting plate 242. The movable end of each rotary cylinder 243 is connected to a rotating member 244. In the normal state, the second propulsion module 241 is in the propulsion state. Under the action of the second roller assembly 210, the material plate is displaced towards the middle of the flipping frame 202 and then blocked by the rotary cylinder 243. The rotary cylinder 243 drives the rotating member 244 to rotate. At this time, the material plate is located between the rotating member 244 and the second roller 212. The second propulsion module 241 resets and contracts, and the rotating member 244 and the second roller 212 cooperate to clamp the material plate, further fixing the material plate to prevent the material plate from detaching from the flipping frame 202 during the flipping process.

[0057] A clamping portion 245 is provided on one side of the rotating member 244 close to the rotary cylinder 243. The clamping portion 245 is engaged with the material plate to further prevent the material plate from detaching from the flipping frame 202 and improve the connection effect.

[0058] A blowing module and a suction cup module are also provided on the flipping frame 202.

[0059] The blowing module includes a nozzle mounting plate 251 fixedly provided on the flipping frame 202 and a plurality of nozzles 252 provided on the nozzle mounting plate 251. The nozzles 252 are connected to a pneumatic system, and the nozzles 252 blow air onto the material plate to perform air shower cleaning on the surface of the material plate.

[0060] The suction cup module includes a suction cup mounting plate 253 fixedly provided on the flipping frame 202 and a plurality of suction cup members 254 provided on the suction cup mounting plate 253. The suction cup members 254 are connected to a pneumatic system and adsorb and fix the material plate to further prevent the material plate from detaching from the flipping frame 202 and improve the connection effect.

[0061] The first manipulator 300 clamps the material plate that has been vertically flipped and displaces it to the side close to the nickel plating device 400.

[0062] The nickel plating device 400 includes a nickel plating bath 410, a transmission mechanism 500 used in cooperation with the nickel plating bath 410, and a manipulator mechanism 600 provided above the nickel plating bath 410. The nickel plating bath 410 is filled with a chemical liquid for electroless nickel plating. The manipulator mechanism 600 is used to clamp the fixture 700 and is fixedly installed in the transmission mechanism 500. The transmission mechanism 500 drives the fixture 700 and the material plate to move in the nickel plating bath 410.

[0063] The manipulator mechanism 600 includes a three-axis drive module and a clamping mechanism provided at the bottom of the three-axis module

[0064] The fixture 700 includes a connecting bracket 710 and a plurality of clamping components mounted on the connecting bracket. The clamping components include a guiding portion 701, a transmission rod 702, a fixed tube 703, a sleeve 704 and a spring 705. An external thread 731 is provided at the top of the fixed tube 703. The external thread 31 is used for fixedly installing the fixed tube 703 on the connecting bracket 710. A flat milling surface 732 is also provided on the fixed tube 703. A guiding hole 711 adapted to the flat milling surface 732 is provided on the guiding portion 701. The top of the fixed tube 703 is inserted into the guiding hole 711, and the flat milling surface 732 abuts against the inner wall of the guiding hole 711 to achieve a positioning effect. In this embodiment, the flat milling surface 732 is provided at the lower end of the external thread 731, and the flat milling surface 732 extends to the external thread 731. This structure allows the fixed tube 703 to be inserted into the guiding hole 711 from bottom to top, preventing the external thread 731 from blocking the insertion of the fixed tube 703, so that the flat milling surface 732 and the guiding hole 11 achieve a limiting effect. At the same time, a mounting hole position 712 is provided on the guiding portion 701. The guiding portion 701 is fixedly installed on the bottom of the connecting bracket 710 by passing a locking screw through the mounting hole position 712 and fixedly installing it on the connecting bracket 710. Through the cooperation of the flat milling surface 732 and the guiding hole 711, the clamping portion 733 connected to the bottom of the fixed tube 703 can be prevented from rotating, improving the clamping accuracy and preventing the fixture from scratching the plate surface or being unable to clamp the material plate.

[0065] Further, the flat milling surface 732 can be provided at the upper end of the external thread 731. The flat milling surface 732 does not need to extend to the external thread 731. The guiding portion 701 is fixedly installed on the upper part of the transmission device. After the fixed tube 703 is threadedly connected to the transmission device through the external thread 731 and penetrates the transmission device, the flat milling surface 732 cooperates with the guiding hole 711 to achieve precise guiding.

[0066] The transmission rod 702 is inserted into the fixed tube 703. The sleeve 704 is sleeved on the outer circumference of the fixed tube 703. Symmetrically arranged fixing parts 721 are provided at the bottom of the transmission rod 702. Two strip-shaped holes 734 are provided on the fixed tube 703. The two fixing parts 721 respectively pass through the two strip-shaped holes 734 and are fixedly connected to the top of the sleeve 704. Two clamping parts 733 are movably connected to the bottom of the fixed tube 703. The two clamping parts 733 form a clamping mechanism. A plug pin 741 is provided at the bottom of the sleeve 704. The plug pin 741 is located in the gap between the two clamping parts 733. The gap between the two clamping parts 733 is in a conical shape that gradually becomes smaller from bottom to top. And the upper half parts of the two clamping parts 733 are located inside the sleeve 704. The fixed tube 703 forms a fixed end through a connecting transmission device. When the transmission rod 702 is driven upward by a driving device, it simultaneously drives the sleeve 704 and the plug pin 741 arranged inside the sleeve 704. The sleeve 74 moves away from the two clamping parts 33. The plug pin 741 moves upward and simultaneously pushes the two clamping parts 33 apart to both sides, realizing the unfolding action of the clamping structure; when the upward pulling force of the driving device on the transmission rod 702 is withdrawn, the elastic force of the spring 705 drives the sleeve 704 downward to realize reset. The plug pin 741 moves downward and simultaneously resets to the bottom of the gap between the two clamping parts 733. The inner wall of the bottom of the sleeve 704 abuts against the outer end faces of the two clamping parts 733 and pushes them inward to reset, realizing the contraction and clamping action of the clamping structure.

[0067] The clamping mechanism includes a fourth lifting module 620 and a deployment component 610. The bottom of the fourth lifting module 620 is connected to the deployment component 610, and the fourth lifting module 620 drives the deployment component to perform lifting transmission. The deployment component 610 includes a third propulsion module 601, a frame body 602, and two sliders 603. The frame body 602 is also provided with perpendicular branches 604. The branches 604 and the frame body 602 are arranged in a "T" shape. The branch 604 is provided with a first strip-shaped groove 605. A sliding member 606 is slidably connected to the first strip-shaped groove 605. A chute 607 is arranged inside the frame body 602, and the chute 607 is perpendicular to the first strip-shaped groove 605. The two sliders 603 are symmetrically arranged in the chute 607. A connecting portion 608 is arranged on the slider 603. A second strip-shaped groove 609 and a third strip-shaped groove 612 are arranged on the frame body 602. The second strip-shaped groove 609 is arranged on one side of the frame body 602 close to the branch 604. After the connecting portion 608 passes through the second strip-shaped groove 609, it is rotatably connected to a transmission rod 611. One end of the transmission rod 611 away from the connecting portion 608 is rotatably connected to the sliding member 606. The third propulsion module 601 is arranged on the side of the frame body 602 away from the branch 604. The driving end of the third propulsion module 601 is connected to a synchronous connecting member 613. The third strip-shaped groove 612 is located on one side of the frame body 602 close to the third propulsion module 601. After the synchronous connecting member 613 passes through the third strip-shaped groove 612, it is fixedly connected to any one of the sliders 603. And the transmission direction of the third propulsion module 601 is the same as the sliding direction of the slider 603 in the chute 607.

[0068] When the two sliders 603 slide to the innermost side of the chute 607, the sliding member 606 is located at the outermost side of the first chute 605. The slider 603 connected to the third propulsion module 601 is the first slider, and the slider 603 not connected to the third propulsion module 601 is the second slider. When the first slider is driven outward by the third propulsion module 601, it simultaneously drives the transmission rod 611 connected to it and pulls the sliding member 606 inward. And the other transmission rod 611 is synchronously driven and generates a thrust pushing the second slider outward, so that the second slider is synchronously driven with the first slider to form a synchronous linkage structure. A clamping portion 614 is arranged on the side of each slider 603 away from the center. The two sliders 603 are respectively connected to two clamps through the clamping portions 614 and realize transmission.

[0069] A clamping portion 722 is arranged at the top of the transmission rod 702. The clamping portion 614 arranged on the deployment component 720 abuts against the clamping portion 722, and the fourth lifting module 620 pulls the transmission rod 702 upward.

[0070] The clamping mechanism further includes an installation plate 650, and a plurality of clamping mechanisms 630 and a plurality of cylinder clamps 640 are also arranged on the installation plate 650. The plurality of clamping mechanisms 630 and the plurality of cylinder clamps 640 are arranged at intervals.

[0071] The connecting bracket 710 is provided with a clamping member 717 that can be clamped by the cylinder clamp 640.

[0072] The mounting plate 650 is arranged on the three-axis transmission module. Multiple cylinder clamps 640 clamp multiple clamping members 717. The third propulsion module 601 pushes outward, and two sliders 603 are synchronously transmitted to both sides. Two clamping portions 614 are respectively engaged with the clamping positions 722 at the tops of the corresponding two jigs 700. A upward pulling force is applied to the jig 700 through the fourth lifting module 620, and the clamping portion 733 of the jig 40 is unfolded. The jig is located at the material plate of the first manipulator 300 through the three-axis transmission module. The fourth propulsion module 701 resets inward, and the clamping position 714 is disengaged from the clamping position 722 at the top of the jig 700. The jig 700 makes the clamping portion contract to clamp the material plate through its own reset mechanism, clamps the material plate on the first manipulator 300, and is displaced above the nickel plating tank 410.

[0073] The nickel plating tank 410 is used to load chemical liquid. The material plate is immersed in the chemical liquid for electroless nickel plating. The transmission mechanism 500 includes a fifth lifting module 501, a mounting frame 502 arranged at the top of the fifth lifting module 501, and transmission components 520 arranged on both sides of the mounting frame 502. The transmission component 520 includes a third driving motor 521, a synchronous pulley (not shown in the figure), and a transmission belt 523. The synchronous pulley is rotatably connected to the side of the mounting frame 502. The third driving motor 521 is connected with a driving pulley (not shown in the figure). The inner sides of the transmission belts 523 are respectively engaged with the driving pulley and the synchronous pulley to form an annular transmission structure. A plurality of jig seats 525 are arranged on the transmission belt 523. The jig seat 525 is provided with a groove body adapted to the jig 700. Both sides of the jig 700 are respectively embedded in the jig seats 525 at the corresponding positions of the two transmission components 520, and the transmission belt 523 is driven in real time by the rotation of the third driving motor 521. The nickel plating tank body 510 is located between the two transmission components 520. The jig 700 is transmitted from left to right, and the material plate is synchronously transmitted in the chemical liquid. The material plate is in full contact with the chemical liquid, so that nickel molecules are evenly adhered to the material plate, realizing nickel plating and improving the nickel plating effect.

[0074] Further, when the production line needs to stop working, the third driving motor 521 stops rotating, and the fifth lifting module 501 drives the transmission mechanism 500, as well as the jig 700 and the material plate clamped on the transmission mechanism 500, to rise, so that the material plate is away from the liquid in the electroless nickel plating tank body 410, preventing the material plate from being immersed in the chemical liquid for a long time and ensuring the electroless nickel plating effect of the product.

[0075] After nickel plating is completed, the material plate is driven by the three-axis transmission module and the clamping mechanism to drive the fixture 700 and the corresponding clamped material plate close to the second manipulator 800. The second manipulator 800 hooks the material plate, the clamping part 733 of the fixture 700 unfolds, and the material plate is located at the feeding device through the second manipulator 800; the fixture 700 without clamping the material plate is located on the side close to the first manipulator 300, clamps the material plate of the first manipulator 300, and transmits it to the nickel plating device.

[0076] The flipping assembly 900 includes a discharge frame 901, a receiving member 902 and a propulsion cylinder 903 arranged on the discharge frame 901. A second rotating rod 904 is rotatably connected to the discharge frame 901. The receiving member 902 is fixedly arranged on the second rotating rod 904. The propulsion cylinder 903 is located below the second rotating rod 904, and the fixed end of the propulsion cylinder 903 is rotatably connected to the discharge frame 901. The movable end of the propulsion cylinder 903 is rotatably connected to a second connecting rod 905. One end of the second connecting rod 905 away from the propulsion cylinder 903 is fixedly connected to the second rotating rod 905. The feeding assembly includes a plurality of third roller assemblies 906 arranged on the discharge frame 901.

[0077] The receiving member 902 is in a "J" shape. The second manipulator 800 places the material plate on the receiving member 902. The propulsion cylinder 903 pushes the second connecting rod 905, and at the same time drives the receiving member 902 to turn upward with the second rotating rod 904 as the axis. When the material plate is in a horizontal state, the material plate contacts a plurality of third roller assemblies 906 at the same time, and the plurality of third roller assemblies 906 rotate to complete the discharging.

[0078] Through the above scheme, full-automatic electroless nickel plating is realized, which saves manpower, improves production efficiency, improves the uniformity of nickel plating, and improves the quality; at the same time, it has the advantage of high adaptability and can process products of different sizes.

[0079] The gold plating device includes a working box 1010 and a spraying assembly 1020. The spraying assembly 1020 includes a pressure pump 1021, a filter 1022, a heat exchange barrel 1023, and a spray nozzle disposed inside the working box 1010 in sequence. The spray nozzle includes an upper spray nozzle 1011 and a lower spray nozzle 1012. A roller conveyor mechanism 1013 is disposed inside the working box 1010. An opening through which a feed plate can pass is provided at the front end of the working box 1010, and this opening enables the roller conveyor mechanism 1013 to be in contact connection with the feeding assembly. The feed plate passes through the feeding assembly and the roller conveyor mechanism 1013 in sequence. The roller conveyor mechanism 1013 is used for transporting the feed plate. Among them, the upper spray nozzle 1011 is located above the roller conveyor mechanism 1013, and the lower spray nozzle 1012 is located below the roller conveyor mechanism 1013. The pressure pump 1021 is used to extract the chemical gold plating solution and provide power, so that the chemical gold plating solution enters the filter 1022 for filtration, and then passes through the heat exchange barrel 1023 to heat the chemical gold plating solution. Both the upper spray nozzle 1011 and the lower spray nozzle 1012 are communicated with the output end of the heat exchange barrel 1023. The upper spray nozzle 1011 and the lower spray nozzle 1012 uniformly spray the feed plate passing on the roller conveyor mechanism 1013. A liquid tank 1024 is located at the bottom of the box body 1010. After the chemical gold plating solution contacts the feed plate, the remaining chemical gold plating solution drops into the liquid tank 1024 under the action of gravity, and the liquid tank 1024 is communicated with the input end of the pressure pump 1021 through a pipeline to form a recycling system, reducing the volatilization of the chemical gold plating solution and further saving the production cost.

[0080] Moreover, in the spraying method of the chemical gold plating solution, the chemical gold plating solution can be uniformly sprayed on the surface of the feed plate, while reducing the replacement amount, reducing the replacement amount of gold ions, ensuring the gold plating effect, and further reducing the production cost.

[0081] The upper spray nozzle 1011 and the lower spray nozzle 1012 are in a strip shape. The spraying directions of the upper spray nozzle 1011 and the lower spray nozzle 12 face the roller conveyor 1013. The upper spray nozzle 1011 and the lower spray nozzle 1012 spray out sheet-shaped sprays onto the feed plate.

[0082] A flip box door 1014 is provided at the top of the working box 1010. The flip box door 1014 can be opened to realize the maintenance of the chemical gold plating tank. In this embodiment, the flip box door 1014 includes an outer cover layer and a glass layer (not shown in the figure), and both the outer cover layer and the glass layer can rotate independently. The glass layer can observe the internal situation of the chemical gold plating tank. The outer cover layer covers the outside of the glass layer to protect the glass layer, and the two-layer design of the outer cover layer and the glass layer can further improve the heat preservation effect of the working box 1010 and enhance the gold plating effect.

[0083] The roller conveyor mechanism 1013 includes a plurality of roller assemblies 1015 and a driving motor 1016. The driving motor 1016 is linked to the plurality of roller assemblies 1015, and the plurality of roller assemblies 1015 convey the material plate.

[0084] Furthermore, by horizontally conveying the material plate through the roller conveyor mechanism 1013, it can be conveyed efficiently and quickly. And in combination with the spraying method, the gold plating effect of the material plate can be made more uniform; and by horizontally conveying the material plate, it can adapt to material plates of different thicknesses, further increasing the versatility.

[0085] It further includes a roller assembly 1017 and an air shower device 1018. The roller assembly 1017 is connected to the end of the roller conveyor mechanism 1013. Rollers are provided on the roller assembly 1017, and the roller assembly 1017 is also linked to the driving motor 1016 at the same time. The material plate contacts the rollers, and the chemical gold plating solution adhering to the material plate can gather under the condition of their contact, and flow back into the liquid tank 1024 under the action of gravity. And the air shower device 1018 is located at the transmission end of the roller assembly 017. The air shower device 1018 is used to blow out an air flow, and this air flow blows towards the material plate. The air flow can gather the chemical gold plating solution adhering to the material plate through wind force, and flow back into the liquid tank 1024 under the action of gravity. Both the roller assembly 1017 and the air shower device 1018 can reduce the chemical gold plating solution from being carried away by the material plate from the chemical gold plating tank to the next process, enabling the chemical gold plating solution to flow back into the liquid tank for recycling, further saving production costs.

[0086] And there are a plurality of working boxes 1010, and each working box 1010 is provided with a spraying assembly 1020 that cooperates with it.

[0087] In this embodiment, the plurality of spraying assemblies 1020 are divided into seven-stage spraying processes to achieve multi-stage spraying. The user can select the spraying process according to the required thickness of the material plate, and the processes that do not need to participate in gold plating are closed through the solenoid valve and do not need to work, reducing the overall energy consumption of the equipment and reducing the loss of the chemical gold plating solution at the same time, further reducing production costs.

[0088] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A circuit board chemical nickel-gold system, characterized in that: It includes a feeding device, a nickel plating device, a feeding device and a gold plating device which are arranged in sequence: A feeding device, comprising a feeding mechanism and a turning mechanism arranged in sequence; A nickel plating device, wherein a chemical nickel plating liquid is loaded in the nickel plating device and contacts and reacts with a material plate in a vertical state to perform chemical nickel plating; a fixture used in conjunction with the nickel plating device, wherein the fixture comprises a connecting bracket and a clamping assembly mounted on the connecting bracket; A feeding device, comprising a turning assembly and a feeding assembly arranged in sequence; The gold plating device performs chemical gold plating on the material plates in horizontal transportation state by spraying.

2. A circuit board chemical nickel-gold system according to claim 1, characterized in that: The gold plating device includes a working box and a spray assembly, the spray assembly includes a pressure pump, a filter, a heat exchange barrel and a spray head located in the working box which are connected in sequence, a roller conveying mechanism is provided in the working box, the roller conveying mechanism is used for material plate transmission, a liquid tank is also provided in the working box, the liquid tank is located at the bottom of the working box, and the liquid tank is connected to the input end of the pressure pump through a pipeline, and the output end of the feeding assembly is connected to the input end of the roller conveying mechanism, the spray head includes an upper spray head and a lower spray head, wherein the upper spray head is located above the roller conveying mechanism, and the lower spray head is located below the roller conveying mechanism, the upper spray head and the lower spray head are both connected to the output end of the heat exchange, and the upper spray head or the lower spray head evenly sprays the material plate passing on the roller conveying mechanism.

3. A circuit board chemical nickel-gold system according to claim 1, characterized in that: The feeding mechanism is provided with a plurality of first roller assemblies and a lifting assembly, a straightening assembly and an intercepting assembly used in conjunction with the first roller assemblies. The flipping mechanism includes a feeding frame, a flipping frame and a connecting rod assembly. One end of the flipping frame is rotatably connected to the feeding frame via a first rotating rod. The connecting rod assembly includes a lifting module and a movable seat arranged on the top of the lifting module. The movable seat is rotatably connected to the first connecting rod. A connecting portion is provided at the bottom of the flipping frame. An end of the first connecting rod away from the movable seat is rotatably connected to the connecting portion.

4. A circuit board chemical nickel-gold system according to claim 1, characterized in that: The clamping assembly includes a guide part, a transmission rod, a fixed tube, a sleeve and a spring which are installed in a matching manner. A clamping part is arranged at the bottom of the fixed tube, and the clamping part is used to clamp the material plate. An external thread is arranged at the top of the fixed tube, and the external thread is threadedly connected with the connecting bracket. A flat milling surface is also arranged on the fixed tube, and a guide hole which matches the flat milling surface is arranged on the guide part. The top of the fixed tube is inserted into the guide hole, and the flat milling surface conflicts with the inner wall of the guide hole. The guide part is fixedly installed at the bottom of the connecting bracket, and the transmission rod penetrates the connecting bracket and is inserted into the fixed tube. The sleeve is sleeved It is arranged on the outside of the circumference of the fixed tube, and a symmetrically arranged fixing part is provided at the bottom of the transmission rod. Two strip holes are provided on the fixed tube. The two fixing parts pass through the two strip holes respectively and are fixedly connected with the top of the sleeve. The spring is sleeved on the outside of the circumference of the fixed tube, and the two ends of the spring are respectively in conflict with the bottom surface of the guide part and the top surface of the sleeve. Two clamping parts are movably connected at the bottom of the fixed tube, and two rotating parts form a clamping mechanism. A pin is provided at the bottom of the sleeve, and the pin is located in the gap between the two rotating parts. The gap between the two rotating parts is a cone shape that gradually becomes smaller from bottom to top.

5. The circuit board chemical nickel-gold system according to claim 1, characterized in that: The nickel plating device includes a nickel plating pool, a transmission mechanism used in conjunction with the nickel plating pool, and a manipulator mechanism arranged above the nickel plating tank. The nickel plating pool is loaded with chemical liquid for chemical nickel plating. The manipulator mechanism is used to clamp a fixture and is fixedly installed in the transmission mechanism. The transmission mechanism drives the fixture and the material plate to transmit in the nickel plating pool. The transmission mechanism includes a mounting bracket and transmission components respectively arranged on both sides of the mounting bracket. The transmission component includes a synchronous wheel, a transmission belt and a third drive motor. The output end of the third drive motor is provided with a driving wheel. The inner side of the transmission belt is respectively assembled with the driving wheel and the synchronous wheel, and the transmission belt is ring-shaped, and the nickel plating tank is located between the two transmission components.

6. A circuit board chemical nickel-gold system according to claim 5, characterized in that: The transmission mechanism also includes a second lifting module, and the top of the second lifting module is connected to the mounting bracket.

7. A circuit board chemical nickel-gold system according to claim 5, characterized in that: The manipulator mechanism comprises a three-axis transmission module and a clamping mechanism arranged at the bottom of the three-axis module, and an unfolding component is arranged on the clamping mechanism.

8. A circuit board chemical nickel-gold system according to claim 7, characterized in that: The unfolding assembly includes a propulsion module, a frame and two sliders, the frame is also provided with a branch, the branch is provided with a first strip groove and a sliding member slidably connected to the first strip groove, a slide groove is provided in the frame, and the slide groove and the first strip groove are perpendicular to each other, the two sliders are symmetrically arranged in the slide groove, and the slider is also provided with a connecting part, the frame is provided with a second strip groove for the connecting part to pass through, the connecting part can be rotatably connected to a transmission rod after passing through the second strip groove, and the end of the transmission rod away from the connecting part is rotatably connected to the sliding member, the frame is provided with a third strip groove, and the driving end of the propulsion module is connected with a synchronous connecting member, and the synchronous connecting member is fixedly connected to any slider after passing through the third strip groove.

9. The circuit board chemical nickel-gold system according to claim 1, characterized in that: The flipping assembly includes a discharging frame and a receiving part and a propulsion cylinder arranged on the discharging frame. The discharging frame is rotatably connected to a second rotating rod, and the receiving part is fixedly arranged on the second rotating rod. The propulsion cylinder is located below the second rotating rod, and the fixed end of the propulsion cylinder is rotatably connected to the discharging frame. The movable end of the propulsion cylinder is rotatably connected to a second connecting rod, and one end of the second connecting rod away from the propulsion cylinder is fixedly connected to the second rotating rod. The feeding assembly includes a plurality of third roller assemblies arranged on the discharging frame.

10. The circuit board chemical nickel-gold system according to claim 2, characterized in that: The gold plating device also includes a roller assembly and an air shower device arranged in the working box, the roller assembly is connected to the end of the roller conveying mechanism, and the air shower device is located at the transmission end of the roller assembly.

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