An automatic gold plating production line for protective covers and a gold plating method

Abstract

The application discloses a kind of automatic gold plating production line and gold plating method of protective cover, the production line includes product feeding machine A, tool conveying line B, circulating tool gold plating special machine C, six-axis robot assembly D, material box up-down circulation conveying line E, material box handling water assembly F, product feeding machine A, tool conveying line B, circulating tool gold plating special machine C, six-axis robot assembly D, material box up-down circulation conveying line E and box handling water assembly F are connected by electric control system and work cooperatively.The closed-loop automation system is formed by integrating A, B, C, D, E and F, which completely replaces traditional manual operation.This significantly improves production efficiency, reduces human error, reduces labor intensity and turnover rate of employees.Meanwhile, through mechanization and closed design, the harm of corrosive gas in the production environment to personnel is reduced, the work safety and happiness index are improved, and the long-term operating cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal surface treatment, in particular to a cover automatic gold plating production line and a gold plating method. BACKGROUND

[0002] In the fields of mechanical manufacturing, automobiles, electronics and new energy, metal surface gold plating treatment has long relied on manual operation of semi-automatic equipment. During production, operators need to frequently perform repetitive tasks such as feeding and discharging, tooling transfer, sampling inspection and equipment maintenance, resulting in low production efficiency and low equipment utilization. Manual intervention also causes poor quality consistency: product placement deviation leads to uneven thickness of the gold plating layer, and the yield can only be maintained at 85%-90%. In addition, the corrosive gases (such as cyanide or acidic steam) present in the production environment directly endanger the health of the operators, and the high repeatability of the work leads to low employee happiness index and high staff turnover rate, further exacerbating production instability and training cost pressure.

[0003] The existing semi-automatic equipment lacks tooling collaborative management and process closed-loop capability, forming multiple technical barriers: first, auxiliary processes such as tooling wiping and drying need to be handled independently by manual operation, prolonging the production cycle; second, the material box water replenishment and wastewater discharge links have not formed an automatic closed loop and rely on manual intervention; third, the signal interaction between the robot and the gold plating special machine is weak, resulting in misalignment of the feeding and discharging rhythm. More importantly, in the traditional production line layout, each unit is in a discrete state, and seamless material transfer cannot be achieved. For example, tooling positioning needs to rely on the cooperation of multiple sets of stop-lifting assemblies, but manual operation cannot guarantee accuracy, leading to robot grabbing deviation.

[0004] Therefore, the existing technology still has certain defects. SUMMARY

[0005] The purpose of the present application is to provide a cover automatic gold plating production line and a gold plating method to reduce the labor intensity and frequency, improve the quality and yield of gold plated products, and reduce the production investment cost.

[0006] To achieve the above purpose, the present application adopts the following technical solutions:

[0007] In a first aspect, the present application provides a cover automatic gold plating production line, which comprises:

[0008] A product feeding machine for automatic feeding of products;

[0009] A tooling conveying line for horizontal circulation conveying and processing of empty and full toolings;

[0010] A circulating tooling gold plating special machine for receiving toolings and performing gold plating operations;

[0011] A six-axis robot assembly for transporting fixtures between a fixture conveying line and a circulating fixture gold plating special machine, and taking products out of the fixtures;

[0012] A tray up-and-down circulating conveying line for receiving products from the six-axis robot assembly and vertically circulating the trays;

[0013] A tray carrying and water pouring assembly for pouring water into and carrying empty trays on the tray up-and-down circulating conveying line;

[0014] The product feeding machine, the fixture conveying line, the circulating fixture gold plating special machine, the six-axis robot assembly, the tray up-and-down circulating conveying line, and the tray carrying and water pouring assembly are connected and work cooperatively through an electric control system.

[0015] In the above scheme, the production line forms a closed-loop automation system by integrating the above six parts, completely replacing traditional manual operation. This significantly improves production efficiency, reduces human error, and reduces labor intensity and employee turnover. At the same time, through mechanization and closed design, the harm of corrosive gas in the production environment to personnel is reduced, and the work safety and happiness index are improved. Overall, the production line realizes high quality and high yield of gold-plated products while reducing long-term operating costs.

[0016] As a preferred embodiment of the present application, the product feeding machine comprises:

[0017] Rack protection;

[0018] A lower CCD detector arranged inside the rack for visual positioning before product feeding;

[0019] A SCARA robot for performing suction and placement actions;

[0020] An upper CCD detector for visual detection after product feeding;

[0021] A TRAY magazine for storing and lifting trays;

[0022] And a composite suction tool mounted at the end of the SCARA robot for switching suction of products and trays.

[0023] In the above scheme, the product feeding machine adopts a double vision system of lower CCD detection and upper CCD detection to ensure accurate positioning of product feeding and placement, reducing misoperation and product damage. The SCARA robot and the composite suction tool realize automatic switching suction of products and trays, improving feeding speed and consistency. This avoids the instability of manual feeding, improves the feeding efficiency to the level of automation, and protects the operator from the interference of the CCD light source through the protection design.

[0024] As a preferred embodiment of the present application, the tool conveying line comprises:

[0025] Multi-section welding frame assembly and conveying line;

[0026] Tool transfer assembly for transferring tools between parallel conveying lines;

[0027] Tool drying assembly for hot air water removal and cold air cooling of tools;

[0028] Tool wiping assembly for wet sponge and dry sponge wiping of tools;

[0029] And a plurality of tool blocking and lifting positioning assemblies distributed on the conveying line for precise positioning and blocking of tools.

[0030] In the above scheme, the tool conveying line realizes horizontal circulation conveying and automatic processing of tools through multi-section conveying lines and special assemblies (such as tool transfer, drying, and wiping). This ensures that the tools can be cleaned, dried, and precisely positioned before and after gold plating, reducing pollution and errors. The conveying line speed is set to 15-18 m / min, with a load of 50 kg, supporting efficient continuous production, avoiding delays and physical exertion of manual transfer, and improving the overall smoothness and reliability of the production line.

[0031] As a preferred embodiment of the present application, the tool wiping assembly comprises:

[0032] Welding stand;

[0033] Y-axis module mounted on the welding stand;

[0034] First Z-axis module mounted on the sliding block of the Y-axis module through a Z-axis fixed cross beam;

[0035] Sponge fixing device mounted on the sliding block of the first Z-axis module;

[0036] And a circulating water tank for providing circulating water for wet sponge wiping.

[0037] In the above scheme, the tool wiping assembly uses a Y-axis module and a first Z-axis module to drive the sponge fixing device, realizing automatic wet sponge and dry sponge wiping operations. The circulating water tank system ensures the continuity and consistency of the wiping process, effectively removing residues and moisture on the tool surface, preventing contamination during gold plating. This improves the yield of gold-plated products, reduces the variability and labor intensity of manual wiping, and reduces water resource waste through automatic control.

[0038] As a preferred embodiment of the present application, the six-axis robot assembly comprises:

[0039] Base device fixed to the ground;

[0040] A robot device, a six-axis robot, is installed on the base device;

[0041] A composite suction cup device is installed on the end flange of the robot device;

[0042] The composite suction cup device includes a gripper cylinder and a gripper positioning pin for grabbing the tooling, and a plurality of independently lifted suction cups for sucking the product.

[0043] In the above scheme, the six-axis robot assembly uses a six-axis robot for high-precision movement and a composite suction cup device to achieve fast and accurate handling of tooling and products. The gripper cylinder and positioning pin ensure the stability of the tooling grabbing, while the independently lifted suction cups allow flexible switching of operation modes. This reduces the error of the robot in multi-point operation, improves the speed of feeding and discharging, shortens the production cycle, and replaces dangerous manual handling through automation, improving safety.

[0044] As a preferred embodiment of the present application, the composite suction cup device further comprises:

[0045] An integrated vacuum generator provides negative pressure for the suction cup;

[0046] A solenoid valve set controls the airflow;

[0047] A lifting cylinder drives the suction cup to perform lifting actions;

[0048] And a pipeline fixing member is used to fix the pipeline to prevent stress.

[0049] In the above scheme, the integrated vacuum generator and solenoid valve set of the composite suction cup device provide a stable and clean air source, ensuring the reliability and feedback control of the suction cup when sucking the product. The pipeline fixing member prevents the pipeline from being worn and stressed during robot movement, prolonging the service life of the equipment. The lifting cylinder and suction cup design allow quick switching of actions, improving operational flexibility and reducing failure rates, thereby maintaining continuous operation and low maintenance costs of the production line.

[0050] As a preferred embodiment of the present application, the material box up-and-down circulating conveying line comprises:

[0051] Two lifting conveyors are located at both ends of the conveying line to vertically lift and lower the material box;

[0052] A double-layer conveying line is connected between the two lifting conveyors to form an upper and lower circulating conveying path;

[0053] And a stop device is used to position and buffer the material box at a specific station.

[0054] In the above scheme, the vertical circulation of the material box is realized by the lifting conveyor and double-layer conveying line design, optimizing the space utilization. The stop device ensures the precise positioning of the material box at a specific station, preventing deviation or collision during transportation. This supports the automatic placement of the robot, reduces manual intervention, improves transportation efficiency, and reduces energy consumption and time for material box handling through the circulation design.

[0055] As a preferred embodiment of the present application, the lifting conveyor comprises:

[0056] A pull-tab metal door type welding frame;

[0057] A lifting pneumatic device that uses a cylinder, guide rail and chain to lift the material box;

[0058] A conveying line device installed on the lifting pneumatic device, which lifts and transports the material box;

[0059] And a fixed stop device installed at the end of the conveying line device to limit the material box.

[0060] In the above scheme, the lifting conveyor uses a lifting mechanism of cylinder, guide rail and chain to provide stable and efficient vertical movement of the material box. The fixed stop device acts as a buffer and limit, preventing the material box from shaking or being damaged during lifting. This ensures smooth transition between the upper and lower conveying lines, improves the reliability of the entire conveying system, and reduces production interruptions caused by mechanical failures.

[0061] As a preferred embodiment of the present application, the material box handling and water pouring assembly comprises:

[0062] A Z-axis lifting device for grabbing and lifting the material box;

[0063] An X-axis transfer module device connected to the Z-axis lifting device to form a cross module to realize the horizontal transfer of the material box;

[0064] A material box turnover device for receiving and clamping the material box and turning it 90° to pour out the waste water;

[0065] And a water tank device arranged below the material box turnover device for collecting waste water.

[0066] In the above scheme, the cross movement system is formed by the Z-axis and X-axis modules to realize the automatic grabbing, transfer and turnover of the material box. This automates the waste water treatment process, reducing the labor intensity and health risks (such as contact with corrosive liquids) of manual water pouring. The water tank device collects waste water and is regularly discharged, keeping the production environment clean and meeting environmental protection requirements, while improving the efficiency of material box reuse.

[0067] In a second aspect, the application also provides a gold plating method based on the automatic gold plating production line for protective covers described above, comprising the following steps:

[0068] S1: placing the product into the empty tooling of the tooling conveying line through the product loading machine;

[0069] S2: conveying the full tooling to the six-axis robot assembly grabbing position and positioning by the tooling conveying line;

[0070] S3: carrying the full tooling to the circulating tooling gold plating special machine by the six-axis robot assembly for gold plating;

[0071] S4: after the gold plating is completed, the six-axis robot assembly takes out the full tooling from the circulating tooling gold plating special machine and places it back on the tooling conveying line;

[0072] S5: switching the end tool of the six-axis robot assembly, taking out the product in the tooling and placing it into the bin of the bin up-and-down circulating conveying line;

[0073] S6: the tooling conveying line sequentially performs wiping, transfer, and drying treatment on the empty tooling and circulates back to the product loading machine;

[0074] S7: the bin up-and-down circulating conveying line conveys the full bin to the manual unloading position and conveys the empty bin to the bin carrying and pouring water assembly for pouring water treatment and then returns to circulation.

[0075] By using the above method, the steps of loading, gold plating, conveying, and pouring water are seamlessly integrated, realizing closed-loop control of the whole process. Each step in the method is optimized through mechanization and visual inspection, ensuring high precision and high efficiency. This reduces variable factors in production, improves product consistency and yield, and reduces energy and labor costs through automated scheduling, making the production line suitable for mass production. BRIEF DESCRIPTION OF DRAWINGS

[0076] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application. In the drawings:

[0077] Figure 1 FIG. 1 is a structural schematic diagram of an automatic gold plating production line for protective covers in one example;

[0078] Figure 2 FIG. 2 is a schematic diagram of the overall structure of a product loading machine in one example;

[0079] Figure 3 FIG. 3 is a schematic diagram of the structure of a rack guard in one example;

[0080] Figure 4 FIG. 4 is a schematic diagram of the structure of a lower CCD detection in one example;

[0081] Figure 5 Structure diagram of a SCARA robot in one example;

[0082] Figure 6 Structure diagram of a CCD detection in one example;

[0083] Figure 7 Structure diagram of a TRAY magazine in one example;

[0084] Figure 8 Structure diagram of a compound suction tool in one example;

[0085] Figure 9 Structure diagram of a tooling conveyor line in one example;

[0086] Figure 10 Structure diagram of a welding frame assembly in one example;

[0087] Figure 11 Structure diagram of a conveyor line in one example;

[0088] Figure 12 Structure diagram of a tooling transfer assembly in one example;

[0089] Figure 13 Structure diagram of a tooling drying assembly in one example;

[0090] Figure 14 Structure diagram of a tooling wiping assembly in one example;

[0091] Figure 15 Structure diagram of a tooling stopper lifting positioning assembly in one example;

[0092] Figure 16 Structure diagram of a six-axis robot assembly in one example;

[0093] Figure 17 Structure diagram of a base device in one example;

[0094] Figure 18 Structure diagram of a robot device in one example;

[0095] Figure 19 Structure diagram of a compound suction cup device in one example;

[0096] Figure 20 Structure diagram of a magazine up-and-down circulation conveyor line in one example;

[0097] Figure 21 Structure diagram of a lifting conveyor in one example;

[0098] Figure 22 Structure diagram of double-layer conveying line in an example;

[0099] Figure 23 Structure diagram of stop device in an example;

[0100] Figure 24 Structure diagram of tray carrying and pouring assembly in an example;

[0101] Figure 25 Structure diagram of Z-axis lifting device in an example;

[0102] Figure 26 Structure diagram of X-axis transfer module device in an example;

[0103] Figure 27 Structure diagram of tray overturning device in an example;

[0104] Figure 28 Structure diagram of water tank device in an example.

[0105] Component and reference numeral list:

[0106] A product feeding machine, 1100 machine frame protection, 1101 aluminum alloy protection assembly, 1102 three-color lamp, 1103 display screen, 1104 PLC screen, 1105 button group, 1106 mouse and keyboard group, 1107 protection welding frame, 1108 electrical control cabinet, 1200 lower CCD detection, 1201 visual light source, 1202 lower CCD detection camera assembly, 1203 guide adjustment mechanism, 1300 SCARA robot, 1301 robot base, 1302 feeding robot body, 1303 feeding robot electromagnetic valve group, 1304 vacuum electromagnetic valve group, 1400 upper CCD detection, 1401 surface light source, 1402 upper CCD detection camera assembly, 1403 light source mounting rack, 1404 mounting structure piece, 1500 TRAY warehouse, 1501 empty TRAY warehouse assembly, 1502 lifting module, 1503 full TRAY warehouse assembly, 1504 TRAY positioning assembly, 1600 composite suction tool, 1601 product suction lifting cylinder, 1602 robot mounting structure assembly, 1603 TRAY suction chuck, 1604 anti-rotation buffer chuck, 1605 TRAY suction chuck fixing plate group;

[0107] B tool conveying line, 2100 welding frame body assembly, 2101 first welding frame, 2102 welding frame foot, 2200 conveying line, 2201 first driving shaft assembly, 2202 first driven shaft assembly, 2203 first aluminum alloy frame body, 2204 driving motor, 2300 tool transfer assembly, 2301 welding cross beam, 2302 welding L-shaped frame, 2303 transfer drag chain device, 2304 horizontal movement module, 2305 lifting cylinder device, 2306 clamping jaw cylinder device, 2400 tool drying assembly, 2401 shield, 2402 spray head, 2403 threaded pipe clamp, 2500 tool wiping assembly, 2501 welding stand column, 2502 Y-axis module, 2503 Y-axis drag chain device, 2504 first Z-axis module, 2505 Z-axis fixed cross beam, 2506 sponge fixing device, 2507 Z-axis drag chain, 2600 tool stopper jacking positioning assembly, 2601 jacking plate, 2602 jacking positioning pin, 2603 jacking guide pneumatic device, 2604 stopper cylinder, 2605 fixed seat;

[0108] C circulating tool gold plating special machine;

[0109] D six-axis robot assembly, 4100 base device, 4101 welding base, 4102 air source filter, 4103 expansion bolt, 4200 robot device, 4201 six-axis robot body, 4202 fixed pipe clamp, 4203 spiral drag chain device, 4300 composite chuck device, 4301 pipeline, 4302 pipeline fixing piece, 4303 integrated vacuum generator, 4304 six-axis robot electromagnetic valve group, 4305 lifting cylinder, 4306 chuck, 4307 clamping jaw cylinder, 4308 clamping jaw positioning pin;

[0110] E material box up and down circulating conveying line, 5100 lifting conveyor, 5101 lifting sheet metal door type welding frame, 5102 conveying line device, 5103 lifting pneumatic device, 5104 fixed stop device, 5200 double-layer conveying line, 5201 second driving shaft assembly, 5202 second driven shaft assembly, 5203 second aluminum alloy frame body, 5204 aluminum alloy leg, 5300 stop device, 5301 material box, 5302 tool device, 5303 stopper pneumatic device, 5304 anti-backoff device;

[0111] F material box carrying and water pouring assembly, 6100 Z-axis lifting device, 6101 second Z-axis module, 6102 Z-axis drag chain device, 6103 end tool connecting device, 6104 Z-axis electromagnetic valve group, 6105 pneumatic clamp, 6200 X-axis transfer module device, 6201 second welding frame, 6202 X-axis drag chain device, 6204 X-axis module, 6205 L-shaped connecting plate, 6300 material box overturning device, 6301 clamping cylinder group, 6302 rotating group, 6400 water tank device, 6401 water tank, 6402 welding frame, 6403 frame foot. DETAILED DESCRIPTION

[0112] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0113] It should be noted that in the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways different from those described herein, and the scope of the present application is not limited to the specific embodiments described herein.

[0114] As shown in Figures 1-28 , the present application first provides a protective cover automatic gold plating production line, which includes product feeding machine A, tool conveying line B, circulating tool gold plating special machine C, six-axis robot assembly D, material box up and down circulating conveying line E, material box carrying and pouring assembly F six parts, through the cooperation between the above six parts form a closed loop automation system, completely replace the traditional manual operation. This significantly improves the production efficiency, reduces human error, reduces the labor intensity and turnover rate of employees. At the same time, through the mechanization and closed design, reduce the harm of corrosive gas in the production environment to the personnel, improve the work safety and happiness index. Overall, the production line realizes the high quality and high yield of gold-plated products, while reducing the long-term operating cost.

[0115] In one example, referring to Figure 2 , the product feeding machine A is composed of 7 parts, which are frame protection 1100, lower CCD detection 1200, SCARA manipulator 1300, upper CCD detection 1400, TRAY material bin 1500, composite suction tool 1600.

[0116] Specifically, continuing to refer to Figures 3-8As shown, the rack protection 1100 is composed of an aluminum alloy protection assembly 1101, a three-color lamp 1102, a display screen 1103, a PLC screen 1104, a button group 1105, a mouse keyboard group 1106, a protection welding rack 1107, an electric control cabinet 1108 and rack accessories. The aluminum alloy protection assembly 1101 adopts aluminum alloy profiles to build the main frame, the fixed door adopts the embedded translucent acrylic plate process, the rotating door adopts the Q235A iron frame + translucent acrylic plate process, and the translucent acrylic can block part of the CCD light source, which plays a certain protection function for the eyes of the operator. The structure is light and easy to process. The three-color lamp 1102 is installed at the top of the aluminum alloy protection assembly 1101; the display screen 1103, the PLC screen 1104, the button group 1105, the mouse keyboard group 1106 are installed on the rotating door of the aluminum alloy protection assembly 1101, which is convenient for manual operation of the equipment; the protection welding rack 1107 adopts the Q235A welding + four Q235A sheet metal door spraying process. The workbench and the welding frame are integrally welded and then milled, the overall structural strength is high, and it is easy to process. The electric control cabinet 1108 is fixed inside the protection welding machine rack 1107 by screws, and the outside is arranged with cooling fans and equipment main power switch. The rack accessories are composed of rack bottom support components, door suction, hinge and other finished product purchased parts, and the support components are rack bottom foot cups.

[0117] The lower CCD detection 1200 is composed of a visual light source 1201, a lower CCD detection camera assembly 1202 and a guide adjustment mechanism 1203. In order to adjust the lower CCD detection 1200 to the best visual lighting effect, the visual light source 1201 is freely adjustable in the Z-axis direction; the lower CCD detection camera assembly 1202 is adjustable in the Z-axis fixed step. The device is installed on the workbench of the protection welding rack 1107.

[0118] The SCARA robot 1300 is composed of a robot base 1301, a feeding robot body 1302, a feeding robot electromagnetic valve group 1303 and a vacuum electromagnetic valve group 1304. In order to meet the actual pickup height, the feeding robot body 1302 is installed on the robot base 1301; the feeding robot electromagnetic valve group 1303 and the vacuum electromagnetic valve group 1304 are configured to realize the switching and suction of the tray and the product, and are installed on both sides of the second joint of the feeding robot body 1302.

[0119] The upper CCD detection 1400 is composed of a surface light source 1401, an upper CCD detection camera assembly 1402, a light source mounting rack 1403, and a mounting structure 1404. In order to meet the detection requirements of a large field of view, the surface light source 1401 is adopted; the upper CCD detection camera assembly 1402 adopts a fixed layout adjustable structure to facilitate the adjustment of the best visual lighting effect; the surface light source 1401 is fixed by using a light source mounting rack 1403 made of lightweight aluminum alloy; and the mounting structure 1404 is mounted inside the upper part of the aluminum alloy protection assembly 1101.

[0120] The TRAY bin 1500 is composed of an empty TRAY bin assembly 1501, a lifting module 1502, a full TRAY bin assembly 1503, and a TRAY positioning assembly 1504. The device adopts a lifting module 1502 with a servo lifting structure to cooperate with the robot to suck the product and the TRAY disc; the TRAY positioning assembly 1504 is installed on the sliding block seat of the lifting module 1502; the empty TRAY bin assembly 1501, the lifting module 1502, and the full TRAY bin assembly 1503 are all installed on the workbench of the protection welded frame 1107.

[0121] The composite suction tool 1600 is composed of a product suction lifting cylinder 1601, an anti-rotation buffer suction disc 1604, a TRAY suction disc 1603, a TRAY suction disc fixing plate group 1605, and a robot mounting structure assembly 1602. The device realizes the function of switching the suction of the product and the TRAY disc. The TRAY suction disc 1603 is installed on the TRAY suction disc fixing plate group 1605 and can freely swing to adjust the best suction position; the anti-rotation buffer suction disc 1604 is installed on the product suction lifting cylinder 1601 to realize lifting switching; the product suction lifting cylinder 1601 is installed on the robot mounting structure assembly 1602; and the robot mounting structure assembly 1602 is installed at the end position of the SCARA robot 1300.

[0122] In one example, referring to Figure 9 As shown in the figure, the tool conveying line B is composed of 6 parts, which are a welded frame assembly 2100, a conveying line 2200, a tool transfer assembly 2300, a tool drying assembly 2400, a tool wiping assembly 2500, a tool stop lifting positioning assembly 2600, and a product tool. Preferably, the welded frame assembly 2100 and the conveying line 2200 each have 6 segments; the tool drying assembly 2400 and the tool wiping assembly 2500 each have 2; and the tool stop lifting positioning assembly 2600 has 9. The product tool can place 6 products, and the single product gold plating time is 12s, the conveying line speed is set to 15-18m / min, and the load is 50kg.

[0123] Continuing to refer to Figures 10-15As shown, the welding frame body assembly 2100 is composed of a first welding frame 2101 and a welding frame footing 2102. The first welding frame 2101 of the device is made of Q235A steel, and the surface adopts a plastic spraying process. The upper surface of the frame body is processed with mounting wire holes, avoidance structures and line hole positions for conveying lines and actuators. The long edge vertical surface of the frame body is processed with wire holes for connecting multiple sets of welding frames to increase the stability of the frame body.

[0124] The conveying line 2200 is composed of a first driving shaft assembly 2201, a first driven shaft assembly 2202, a first aluminum alloy frame 2203, a driving motor 2204 and a speed chain SB08. The first driving shaft assembly 2201 of the conveying line can be installed with a motor on both sides of the shaft support part. The three-section transmission shaft is connected with two couplings to adapt to the off-center working conditions of the shaft caused by factors such as processing and installation. The first driven shaft assembly 2202 is composed of two parts, each of which adjusts the tension degree. The first aluminum alloy frame 2203 is configured with an adjustable guide strip to facilitate the adjustment of the guide width, and is configured with an L-shaped mounting piece installed on the upper surface of the welding frame body assembly 2100. The first aluminum alloy frame 2203 has mounting grooves on four sides to facilitate the installation of stoppers, jacks and other accessories.

[0125] The tool transfer assembly 2300 is composed of a welding cross beam 2301, a welding L-shaped frame 2302, a transfer drag chain device 2303, a horizontal movement module 2304, a lifting cylinder device 2305 and a clamping jaw cylinder device 2306. The assembly is installed on the upper surface of the two sets of welding frame body assemblies 2100. It is used for tool handling between the two conveying lines 2200. The welding cross beam 2301 and the welding L-shaped frame 2302 form a cantilever frame, which is used to install the horizontal movement module 2304. The transfer drag chain device 2303 is installed above the horizontal movement module 2304, and the wire harness and air pipe move linearly back and forth. The lifting cylinder device 2305 and the clamping jaw cylinder device 2306 are installed on the sliding block of the horizontal movement module 2304. The lifting cylinder device 2305 realizes the functions of lifting after tool grabbing or lowering after horizontal movement of the tool to the position. The clamping jaw cylinder device 2306 realizes the functions of grabbing or releasing the tool.

[0126] The tool drying assembly 2400 is composed of a shield 2401, a spray head 2402, a threaded pipe clamp 2403 and a fan device and accessories. The assembly has two sets, one set is a hot air blowing assembly, and the other set is a cold air blowing assembly, and the two sets have the same main structure. The hot air blowing assembly blows hot air to quickly evaporate the moisture in the tool, and the cold air blowing assembly blows cold air to cool the tool. The shield 2401 is made of 304 and is installed on the hole position of the welding frame body assembly 2100, which is used for the installation of the spray head 2402 and the heat accumulation effect. Three groups of spray heads 2402 are used, and the threaded pipe clamp 2403 fixes the spray head 2402 on the top surface inside the shield 2401.

[0127] The tooling wiping assembly 2500 consists of welded columns 2501, a Y-axis module 2502, a Y-axis cable chain device 2503, a first Z-axis module 2504, a Z-axis fixed crossbeam 2505, a sponge fixing device 2506, a Z-axis cable chain 2507, a circulating water tank, and piping accessories. There are two sets of this assembly: one for wet sponge wiping and the other for dry sponge wiping; both sets have identical main structures. The Y-axis module 2502 is mounted on two sets of welded columns 2501, enabling the sponge to move in the Y-direction. The Y-axis cable chain device 2503 drives the wire harness to move. The Z-axis fixed crossbeam 2505 is fixed to the slider of the Y-axis module 2502. The first Z-axis module 2504 is fixed to the vertical surface of the Z-axis fixed crossbeam 2505. The Z-axis cable chain 2507 drives the wire harness to reciprocate in the Z-axis direction. The sponge fixing device 2506 is fixed on the slider of the first Z-axis module 2504 for quick installation and removal of the sponge.

[0128] The tooling stop and jacking positioning assembly 2600 consists of a jacking plate 2601, a jacking positioning pin 2602, a jacking guide pneumatic device 2603, a stop cylinder 2604, and a fixed base 2605. Multiple sets of this assembly are available on tooling conveyor line B. Depending on the working conditions, some workstations are equipped with a stop mechanism, some with a jacking mechanism, and some with both. The jacking guide pneumatic device 2603 and the fixed base 2605 are mounted on the bottom surface of conveyor line 2200. The jacking positioning pin 2602 is mounted on the jacking plate 2601 and mates with the positioning hole of the tooling for a precise fit. The jacking plate 2601 is mounted on two sets of jacking guide pneumatic devices 2603 to enable the insertion and disengagement of the jacking positioning pin 2602. The stop cylinder 2604 is mounted on the fixed base 2605 to provide a buffer stop function for incoming material.

[0129] In one example, refer to Figure 16 As shown, the six-axis robot assembly D consists of four parts: a base device 4100, a robot device 4200, and a composite suction cup device 4300.

[0130] For details, please refer to... Figures 17-19 As shown, the base device 4100 consists of a welded base 4101, an air source filter 4102, and an expansion bolt 4103. It facilitates the loading and unloading of materials from the handling fixture to the circulating tooling gold plating machine C, and the placement of products into the material box. This device is installed at the end of the tooling conveyor line B and is fixed to the bottom surface using the expansion bolt 4103. The welded base 4101 is made of Q235A steel with a powder-coated surface, and is integrally welded. The mounting surface is leveled after welding. Equipped with an air source filter 4102, it provides a clean and stable air source for the end tool.

[0131] The robot device 4200 is composed of a six-axis robot body 4201, a fixed pipe clamp 4202, and a spiral drag chain device 4203. The device uses a six-axis robot body 4201 of 35Kg to achieve multi-point high-precision movement. The fixed pipe clamp 4202 is installed on the hole position of the six-axis robot body 4201 to realize the function of fixing the pipe package. Because the end tool is a composite execution tool with multiple points, an external spiral drag chain device 4203 is used to carry the pipeline for reciprocating rotary motion.

[0132] The composite suction cup device 4300 is composed of a pipeline 4301, a pipeline fixing part 4302, an integrated vacuum generator 4303, a six-axis robot electromagnetic valve group 4304, a lifting cylinder 4305, a suction cup 4306, a clamping jaw cylinder 4307, a clamping jaw positioning pin 4308, and a structure accessory. The device is installed at the sixth axis flange of the robot device 4200, and uses a cylinder to drive the suction cup to extend and retract to realize the function of grabbing the tool and sucking the product. The pipeline 4301 is fixed using the pipeline fixing part 4302 to prevent the pipeline 4301 from being stressed at multiple points when the robot places the tool or product. Six independent lifting cylinders 4305 are used to drive the suction cup 4306 to switch between sucking and grabbing actions. The clamping jaw cylinder 4307 is used to grab the tool, and the clamping jaw positioning pin 4308 is used to ensure the accuracy of grabbing the tool. The integrated vacuum generator 4303 provides negative pressure and pressure feedback to the suction cup 4306, and the six-axis robot electromagnetic valve group 4304 provides positive pressure to the lifting cylinder 4305.

[0133] In one example, referring to Figure 20 , the material box up-down circulation conveying line E is composed of three parts, which are lifting conveyors 5100, double-layer conveying lines 5200, stop devices 5300, and running tools. Preferably, there are two lifting conveyors 5100; the double-layer conveying line 5200 has four sections, and the stop device 5300 has two. The product tool can hold six products. The conveying line speed is set to 15-18m / min, and the load is 50kg. The running mode is up-down circulation conveying.

[0134] Specifically, continuing to refer to Figures 21-23 , the lifting conveyor 5100 is composed of a lifting sheet metal door type welded frame 5101, a conveying line device 5102, a lifting pneumatic device 5103, and a fixed stop device 5104. The lifting conveyor 5100 is installed at the two ends of the material box up-down circulation conveying line E to provide lifting conveying function for the inflow or outflow of the material box 5301 on the double-layer conveying line 5200. The lifting pneumatic device 5103 uses a combination of cylinders, guide rails, and chains to achieve the lifting of materials. The conveying line device 5102 is installed on the lifting pneumatic device 5103 to realize the inflow and outflow of materials. The fixed stop device 5104 is installed at the end of the conveying line device 5102, and after the material box 5301 flows in, it plays a buffering and limiting role.

[0135] Double-layer conveying line 5200 is composed of second driving shaft assembly 5201, second driven shaft assembly 5202, second aluminum alloy frame body 5203, aluminum alloy leg 5204 and chain. The shaft support parts on both sides of the second driving shaft assembly 5201 of the conveying line can be installed with motors. The three-section transmission shafts are connected by two couplings to adapt to the off-center working conditions of the shafts caused by machining, installation and other factors. The number of the second driven shaft assembly 5202 of a single conveying line is two, and each adjusts the tension degree. The second aluminum alloy frame body 5203 is provided with an integrated guide strip, and the limiting width of the tool is adjusted by adjusting the installation spacing of the conveying line; the second aluminum alloy frame body 5203 is provided with installation grooves on four sides, which facilitates the installation of stopping, jacking and other accessories. The upper and lower conveying lines are installed on two groups of aluminum alloy legs 5204.

[0136] The stopping device 5300 is composed of a material box 5301, a tool device 5302, a stopping pneumatic device 5303 and a retreat prevention device 5304. The device is provided with a stopping pneumatic device 5303, which plays a role in buffering and stopping after the tool device 5302 receives materials. It is also provided with a retreat prevention device 5304 to prevent the tool from retreating due to manual intervention, machine restart and other situations, which affects the placement position accuracy of the robot. The main material of the tool device 5302 is 6061 aluminum, and the bottom is inlaid with 304 plate to reduce friction; guide wheels are installed on the four corners to ensure smooth conveying of the tool; four adjustable limiting strips are installed on the upper surface of the tool to facilitate the adjustment of the installation gap according to the actual material.

[0137] In one example, referring to Figure 24 The material box carrying and water pouring assembly F is composed of four parts, namely Z-axis lifting device 6100, X-axis transfer module device 6200, material box overturning device 6300 and water tank device 6400. The assembly realizes the functions of grabbing the material box 5301 on the conveying machine 5100, placing it on the material box overturning device 6300, pouring out the excess moisture in the material box 5301 by overturning, and regularly draining the waste water by the water tank device 6400 below.

[0138] Further referring to Figures 25-28 The Z-axis lifting device 6100 is composed of second Z-axis module 6101, Z-axis drag chain device 6102, end tool connecting device 6103, Z-axis electromagnetic valve group 6104 and pneumatic clamp 6105. The Z-axis electromagnetic valve group 6104 and the pneumatic clamp 6105 are installed on the end tool connecting device 6103 to realize the function of grabbing the material box 5301. The end tool connecting device 6103 is installed on the body of the second Z-axis module 6101, and the slider and the X-axis transfer module device 6200 are installed. The Z-axis drag chain device 6102 carries pipelines and moves with the second Z-axis module 6101.

[0139] The X-axis moving module device 6200 is composed of a second welded frame 6201, an X-axis tow chain device 6202, an X-axis module 6204 and an L-shaped connecting plate 6205. The second welded frame 6201 is installed above the lifting conveyor 5100, is made of Q235A steel material, is plastic-sprayed on the surface, is integrally welded, and has a mounting surface which is processed and leveled after welding. The X-axis module 6204 is installed on the second welded frame 6201, the X-axis tow chain device 6202 bears a pipeline and moves with the X-axis module 6204. The L-shaped connecting plate 6205 is installed with the Z-axis lifting device 6100 to form a two-axis moving module.

[0140] The material box overturning device 6300 is composed of a clamping cylinder group 6301, a rotating group 6302 and a motor group. The cross module formed by the Z-axis lifting device 6100 and the X-axis moving module device 6200 grabs the material box 5301 and places it on the rotating group 6302, the clamping cylinder group 6301 fixes the material box 5301, the motor group drives the rotating group 6302 to rotate, and the material box is overturned by 90°.

[0141] The water tank device 6400 is composed of a water tank 6401, a welded frame 6402 and frame feet 6403. The material box overturning device 6300 is installed above the water tank device 6400, the welded frame 6402 is made of Q235A steel material, is plastic-sprayed on the surface, is integrally welded, and has a mounting surface which is processed and leveled after welding. The four frame feet 6403 are installed below the welded frame 6402 to adjust the height of the frame body.

[0142] The application also provides a gold plating method based on the above device, which mainly includes the following steps:

[0143] S1: placing products into empty tooling of a tooling conveying line B through a product loading machine A;

[0144] S2: conveying the full tooling to a grabbing position of a six-axis robot assembly D and positioning;

[0145] S3: carrying the full tooling into a circulating tooling gold plating special machine C by the six-axis robot assembly D to perform gold plating;

[0146] S4: after the gold plating is completed, taking out the full tooling from the circulating tooling gold plating special machine C by the six-axis robot assembly D and placing it back to the tooling conveying line B;

[0147] S5: switching an end tool of the six-axis robot assembly D, taking out the products in the tooling and placing them into a material box of a material box up-and-down circulating conveying line E;

[0148] S6: performing wiping, moving, drying treatment on the empty tooling in turn by the tooling conveying line B and circulating back to the product loading machine A;

[0149] S7: The full load box is transported to the manual unloading position by the up-and-down circulating box conveying line E, and the empty box is transported to the box carrying and water pouring assembly F for water pouring treatment, and then returned to the circulation.

[0150] In the actual production process, the product feeding machine A places products into the fixtures of the fixture conveying line B in sequence, the fixture conveying line B transports the full load fixture to the six-axis robot grabbing position and jacks up for positioning. The six-axis robot assembly D places the fixture into the two circulating fixture gold plating special machines C with insufficient load for gold plating operation. The circulating fixture gold plating special machine C with completed gold plating sends a signal for taking out the material, and the six-axis robot assembly D places the full load fixture into the six-axis robot placing position of the fixture conveying line B on the other side. The end tool of the six-axis robot assembly D switches to the suction cup mode, sucks all the products in the fixtures and places them into the boxes of the up-and-down circulating box conveying line E in sequence. The fixture conveying line B transports the empty load fixture to the fixture wiping assembly 2500 for wet sponge wiping operation and dry sponge wiping operation, respectively. The fixture conveying line B transports the empty load fixture to the fixture transfer assembly 2300 to transfer the empty fixture to the conveying line on the other side of the fixture conveying line B. The fixture conveying line B transports the empty fixture to the fixture drying assembly 2400 for hot air water removal operation and cold air water removal operation, respectively. The fixture conveying line B transports the empty fixture to the feeding position of the product feeding machine A again, and the fixture is thus circulated horizontally. The full load box 5301 is transported to the manual position by the up-and-down circulating box conveying line E, and the products are taken out manually. The empty load box 5301 is transported to the lifting conveyor 5100 position at the end of the box carrying and water pouring assembly F, the box carrying and water pouring assembly F pours water into the empty load box 5301, and then the empty load box 5301 is placed back into the lifting conveyor 5100, which lowers and transports the empty load box 5301 to the lower conveying line of the up-and-down circulating box conveying line E for water supplement operation. The empty load box 5301 is transported to the lifting conveyor 5100 at the end of the six-axis robot assembly D by the lower conveying line of the up-and-down circulating box conveying line E, the lifting conveyor 5100 lifts and transports the empty load fixture to the robot product placing position, and the box is thus circulated vertically.

[0151] The technical solutions protected by the present application are not limited to the above-mentioned embodiments. It should be noted that the combination of the technical solutions of any one embodiment with those of one or more other embodiments is within the scope of protection of the present application. Although the present application has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present application are within the scope of protection of the present application.

Claims

1. A cap automatic gold plating production line, characterized in that, The application relates to a product loading machine A for automatic loading of products; a tool conveying line B for horizontal circulation conveying and processing of empty and full tools; a circulating tool gold plating special machine C for receiving tools and performing gold plating operations; a six-axis robot assembly D for carrying tools between the tool conveying line B and the circulating tool gold plating special machine C and taking products out of the tools; a tray up-and-down circulation conveying line E for receiving products from the six-axis robot assembly D and vertically circulating conveying of trays; a tray carrying and water pouring assembly F for pouring water into and carrying empty trays on the tray up-and-down circulation conveying line E; the product loading machine A, the tool conveying line B, the circulating tool gold plating special machine C, the six-axis robot assembly D, the tray up-and-down circulation conveying line E and the tray carrying and water pouring assembly F are connected and cooperatively work through an electric control system; the tray up-and-down circulation conveying line E comprises two lifting conveyors (5100) respectively located at two ends of the conveying line for vertically lifting and lowering trays; a double-layer conveying line (5200) connected between the two lifting conveyors (5100) forms upper and lower circulation conveying paths; and a stopping device (5300) for positioning and buffering of trays at specific stations. The product loading machine A comprises a rack protection (1100); a lower CCD detector (1200) arranged in the rack for visual positioning before loading of products; a SCARA manipulator (1300) for performing suction and placement actions; an upper CCD detector (1400) for visual detection after loading of products; a TRAY tray warehouse (1500) for storing and lifting trays; and a composite suction tool (1600) mounted at the end of the SCARA manipulator (1300) for switching suction of products and trays. The tool conveying line B comprises a multi-section welded frame assembly (2100) and a conveying line (2200); a tool transfer assembly (2300) for transferring tools between parallel conveying lines; a tool drying assembly (2400) for hot air water removal and cold air cooling of tools; a tool wiping assembly (2500) for wet sponge and dry sponge wiping of tools; and a plurality of tool stopping and lifting positioning assemblies (2600) distributed on the conveying line for accurate positioning and stopping of tools. The tool wiping assembly (2500) comprises a welded stand column (2501); a Y-axis module (2502) mounted on the welded stand column (2501); a first Z-axis module (2504) mounted on the slider of the Y-axis module (2502) through a Z-axis fixed cross beam (2505); a sponge fixing device (2506) mounted on the slider of the first Z-axis module (2504); and a circulating water tank for providing circulating water for wet sponge wiping. The six-axis robot assembly D comprises a base device (4100) fixed to the ground; a robot device (4200) which is a six-axis robot and is mounted on the base device (4100). ​ ​ ​ ​ ​ ​ ​ 2. The cap auto-gold plating line of claim 1, wherein, ​ ​ ​ ​ ​ ​ ​ 3. The cap auto-gold plating line of claim 1, wherein ​ ​ ​ ​ ​ ​ 4. The cap auto-gold plating line of claim 3, wherein, ​ ​ ​ ​ ​ ​ 5. The cap auto-gold plating line of claim 1, wherein, ​ ​ ​ A composite suction cup device (4300) is mounted on the end flange of the robot device (4200); The composite suction cup device (4300) includes a clamping jaw cylinder (4307) and a clamping jaw positioning pin (4308) for grabbing a tooling, and a plurality of independently lifted suction cups (4306) for sucking products.

6. The cap auto-gold plating line of claim 5, wherein, The composite suction cup device (4300) further includes: An integrated vacuum generator (4303) provides negative pressure for the suction cups (4306); A solenoid valve group (4304) controls air flow; A lifting cylinder (4305) drives the suction cups (4306) to perform lifting actions; And a pipeline fixing member (4302) is used to fix the pipeline (4301) to prevent stress.

7. The cap auto-gold plating line of claim 1, wherein The lifting conveyor (5100) includes: A pull-tab metal door type welded rack (5101); A lifting pneumatic device (5103) uses a cylinder, a guide rail, and a chain to realize the lifting of the material box; A conveying line device (5102) is installed on the lifting pneumatic device (5103) and lifts and conveys the material box together with the lifting pneumatic device (5103); And a fixed stopping device (5104) is installed at the end of the conveying line device (5102) to limit the material box.

8. The cap auto-gold plating line of claim 1, wherein, The material box carrying and water pouring assembly F includes: A Z-axis lifting device (6100) for grabbing and lifting the material box (5301); An X-axis transfer module device (6200) connected with the Z-axis lifting device (6100) to form a cross module to realize horizontal transfer of the material box (5301); A material box overturning device (6300) for receiving and clamping the material box (5301) and overturning it by 90° to pour out waste water; And a water tank device (6400) arranged below the material box overturning device (6300) for collecting waste water.

9. A gold plating method characterized by, The automatic cover plating gold production line based on any one of claims 1-8, comprising the following steps: S1: placing the product into the empty tooling of the tooling conveying line B through the product loading machine A; S2: the tooling conveying line B conveys the full material tooling to the grabbing position of the six-axis robot assembly D and positions it; S3: the six-axis robot assembly D carries the full material tooling into the circulating tooling plating gold special machine C for plating; S4: after plating is completed, the six-axis robot assembly D takes out the full material tooling from the circulating tooling plating gold special machine C and returns it to the tooling conveying line B; S5: the six-axis robot assembly D switches the end tool, takes out the product in the tooling and places it into the material box of the material box up-and-down circulating conveying line E; S6: the tooling conveying line B sequentially performs wiping, transfer, and drying treatment on the empty tooling and returns to the product loading machine A; S7: the material box up-and-down circulating conveying line E conveys the full material box to the manual unloading position, and conveys the empty material box to the material box carrying and water pouring assembly F for water pouring treatment and then returns to the circulation.

Images