An automatic feeding system and method

Abstract

The application provides an automatic feeding system and method. The automatic feeding system comprises a machine table and a circulating conveying mechanism, a workpiece feeding mechanism, a panel warehouse, a panel transfer mechanism, a workpiece transfer robot, a visual detection device, a cover plate feeding mechanism, a jig unloading and transfer mechanism, and a jig receiving mechanism arranged on the machine table. The automatic feeding system and method provided by the application realizes automatic production and improves production efficiency by feeding workpieces, jig panels, and jig cover plates separately and assembling them in sequence through different automatic mechanisms.

Description

Technical Field

[0001] This application relates to the field of automatic feeding technology, specifically to an automatic feeding system and method for feeding workpieces to be coated onto a fixture. Background Technology

[0002] Mobile phone logos typically require PVD coating to achieve different colors, enhancing aesthetics and improving wear and corrosion resistance. Because the high-gloss area to be coated on logos is large and the masking area is small, the precision requirements for assembly fixtures are very high. Currently, automated assembly equipment struggles to meet yield requirements, necessitating manual assembly by operators. This manual loading method is inefficient and yields poor results, leading to a high rate of defects.

[0003] Therefore, developing an automated device and method for automatically assembling workpieces into fixtures is an urgent problem to be solved. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this application provides an automatic feeding system and method to improve production efficiency and product yield.

[0005] In a first aspect, this application provides an automatic feeding system for assembling workpieces requiring PVD coating into a fixture. The fixture includes a matching panel and a cover plate, the panel and cover plate being provided with receiving grooves for placing workpieces, and the workpieces being clamped between the panel and cover plates. The automatic feeding system includes:

[0006] A machine tool, which includes a platform for support;

[0007] A circulating transmission mechanism includes a transmission guide rail and several transmission seats. The transmission guide rail is arranged parallel to the surface of the machine tool, and the transmission seats move cyclically along the transmission guide rail. The upper surface of the transmission seat is set as a plane for placing components. The transmission guide rail includes a starting end and an ending end.

[0008] The workpiece loading mechanism is located on the upper surface of the platform and is used to store and transport workpieces to be assembled.

[0009] Panel hopper: The panel hopper is located on the upper surface of the platform and near the starting end of the transfer guide rail. It is used to place and transfer the panel of the fixture.

[0010] Panel transfer mechanism, which is set on the upper surface of the platform and close to the panel hopper, is used to pick up the panels from the panel hopper and transfer them to the conveyor seat;

[0011] The workpiece transfer robot is set on the upper surface of the table and close to the workpiece loading mechanism. It is used to pick up the workpieces from the workpiece loading mechanism and transfer them to the panel placed on the conveyor seat.

[0012] The vision inspection device is set on the machine tool and located within the activity path of the workpiece transfer robot. The vision inspection device performs machine vision recognition on the workpiece picked up by the workpiece transfer robot to obtain the planar angle information of the workpiece. The workpiece transfer robot adjusts the angle of the picked-up workpiece according to the planar angle information of the workpiece and the preset panel position of the transfer seat so that the workpiece can be placed on the panel of the transfer seat.

[0013] The cover plate loading mechanism is located on the upper surface of the platform and near the end of the transmission guide rail. It is used to place the cover plate of the fixture and transfer the cover plate to the upper part of the panel of the conveyor seat.

[0014] The fixture unloading and transfer mechanism is located on the upper surface of the platform and near the end of the transfer guide rail. It is used to pick up the fixtures with assembled panels and covers on the transfer seat.

[0015] The fixture receiving mechanism is located on the upper surface of the platform and close to the fixture unloading and transfer mechanism to collect the fixtures picked up by the fixture unloading and transfer mechanism.

[0016] In one alternative implementation, the transmission guide rail includes an upper transmission rail disposed on the upper surface of the platform and a lower transmission rail disposed on the lower surface of the platform. The platform has a lifting window at the beginning and end of the transmission guide rail for the vertical passage of the transmission seat. The two lifting windows are equipped with a transmission lifting mechanism for raising and lowering the transmission seat. The transmission lifting mechanism connects the upper transmission rail and the lower transmission rail. The transmission seat rises or falls between the upper and lower transmission rails to make the transmission seat move cyclically along the transmission guide rail.

[0017] In one alternative implementation, the visual inspection device includes a detection light source and a detection camera, wherein the detection light source is positioned upward to emit detection light, and the detection camera is positioned upward to capture an image of the workpiece.

[0018] In one alternative implementation, the panel hopper includes: a hopper base, which is fixedly disposed on the upper surface of the platform; a panel hopper, the lower end of which is disposed on the hopper base, and panels are vertically stacked in the panel hopper; it also includes a panel transfer component, a push rail, and a panel push mechanism, wherein the panel transfer component and the push rail are horizontally disposed on the hopper base, and the panel push mechanism drives the panel transfer component to move along the push rail; the top of the hopper base cooperates with the panel transfer component, and the panel transfer component is configured to accommodate the panel and push the panel horizontally out from the bottom of the hopper base.

[0019] In one alternative implementation, the panel transfer mechanism includes a transfer drive mechanism and a panel clamping claw. The panel clamping claw is laterally movable within the transfer drive mechanism and is configured to pick up and place panels. The transfer drive mechanism drives the panel clamping claw to move laterally.

[0020] In one alternative implementation, the workpiece transfer robot includes a base, a multi-axis robotic arm, and a suction mechanism. The base is fixedly mounted on the upper surface of the platform, the multi-axis robotic arm is rotatably mounted on the base, and the suction mechanism is located at the free end of the multi-axis robotic arm. The suction mechanism includes several suction parts for suctioning workpieces.

[0021] In one alternative implementation, the suction unit includes a telescopic driver, a suction seat, a rotary driver, a rotary shaft, and a suction cup. The telescopic driver is fixedly mounted on the suction mechanism. The telescopic end of the telescopic driver is connected to the suction seat to drive the suction seat to telescopically move. The rotary driver is mounted on the suction seat to move synchronously. The rotary shaft is drivenly connected to the rotary output end of the rotary driver. The suction cup is mounted at the bottom of the rotary shaft to pick up and rotate the workpiece.

[0022] In one alternative implementation, the workpiece loading mechanism includes a workpiece pallet loading mechanism for storing and moving workpiece pallets, the workpiece pallets being used to arrange and place workpieces; the workpiece pallet loading mechanism includes a first pallet compartment, a second pallet compartment, and a pallet transfer mechanism disposed on the upper surface of the platform, the pallet transfer mechanism being disposed between the first pallet compartment and the second pallet compartment, the first pallet compartment and the second pallet compartment being configured to vertically stack workpiece pallets, and the pallet transfer mechanism being configured to move the workpiece pallet from the first pallet compartment to a position for the workpiece transfer robot to pick up the workpiece and to transfer the workpiece pallet to the second pallet compartment.

[0023] In another alternative implementation, the workpiece loading mechanism includes a workpiece hanging bar loading mechanism, which includes a frame, a workpiece bearing component, a workpiece suction component, a workpiece transfer component, and an exchange loading component. The frame is fixedly mounted on the platform, the workpiece transfer component is mounted on the frame, the workpiece suction component is movably mounted on the workpiece transfer component, and the workpiece bearing component and the exchange loading component are mounted on the platform.

[0024] In one alternative implementation, the cover plate loading mechanism includes: a fixture tray conveying mechanism for storing and moving fixture trays, the fixture trays holding the cover plates of fixtures; and a cover plate transfer mechanism for transferring the cover plates of fixtures to a conveyor seat; the fixture tray conveying mechanism includes a first fixture tray compartment, a second fixture tray compartment, and a fixture tray conveying mechanism, the first and second fixture tray compartments vertically stacking fixture trays, the fixture tray conveying mechanism being disposed between the first and second fixture tray compartments, and the fixture tray conveying mechanism being configured to move the fixture trays from the first fixture tray compartment to a conveyor seat. The jig tray is moved horizontally to the position where the cover plate transfer mechanism picks up the cover plate and transfers the jig tray to the second jig tray. The cover plate transfer mechanism includes a cover plate transfer drive mechanism, a cover plate transfer guide rail, and a cover plate picking mechanism. The cover plate transfer drive mechanism is arranged laterally on the cover plate transfer guide rail, and the cover plate picking mechanism is movably arranged on the cover plate transfer guide rail. The cover plate picking mechanism is configured to pick up and release the cover plate. The cover plate transfer drive mechanism drives the cover plate picking mechanism to reciprocate along the cover plate transfer guide rail so that the cover plate picking mechanism picks up the cover plate and places it on the panel of the transfer seat.

[0025] Secondly, an automatic feeding method is provided for assembling workpieces requiring PVD coating into a fixture, the fixture including a matching panel and a cover plate, characterized in that: the automatic feeding method is based on the above-mentioned automatic feeding system, and includes the following steps:

[0026] S1. Place the workpiece on the workpiece loading mechanism, place the panel on the panel hopper, and place the cover plate on the cover plate loading mechanism.

[0027] S2-1, The workpiece loading mechanism moves the workpiece to be picked up to the preset position;

[0028] S2-2, The panel transfer mechanism picks up the panel from the panel hopper and places it on the conveyor seat of the circulating conveyor mechanism;

[0029] S3. The workpiece transfer robot picks up the workpiece from the workpiece loading mechanism and moves the picked-up workpiece to the top of the vision inspection device. The vision inspection device performs visual recognition on the workpiece to obtain the planar angle information of the workpiece. The workpiece transfer robot adjusts the angle of the picked-up workpiece according to the planar angle information of the workpiece and the preset panel position of the conveyor seat so that the workpiece can be placed on the panel of the conveyor seat.

[0030] S4. The conveyor moves to the next station, and the cover plate loading mechanism transfers the cover plate and places it on the upper part of the upper panel of the conveyor.

[0031] S5. The fixture unloading and transfer mechanism picks up the fixture on the conveyor seat and transfers it to the fixture receiving mechanism.

[0032] S6. Collect the fixture from the fixture receiving mechanism to complete a single loading operation;

[0033] S7. Repeat the above steps for feeding materials.

[0034] The automatic feeding system and automatic feeding method provided in this application have at least the following beneficial effects:

[0035] By employing different automated mechanisms to separately feed and sequentially assemble workpieces, fixture panels, and fixture covers, automated production is achieved, improving production efficiency. The collaboration between robotic arms and vision inspection devices enables precise workpiece positioning, minimizing surface scratches or placement misalignments when workpieces are transferred to the panel, significantly increasing product yield. The tight coordination of these automated mechanisms further enhances production cycle time, enabling automated production and boosting output. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of an automatic feeding system provided in one embodiment of this application.

[0038] Figure 2 This is a schematic diagram of the automatic feeding system provided in one embodiment of this application from another angle.

[0039] Figure 3 This is a top view of an automatic feeding system provided in one embodiment of this application.

[0040] Figure 4 A side view of an automatic feeding system provided in one embodiment of this application.

[0041] Figure 5 This is a partial view of an automatic feeding system provided in one embodiment of the present application, showing the positional relationship between the vision inspection device and the workpiece transfer robot.

[0042] Figure 6 This is a schematic diagram of the panel hopper and panel transfer mechanism provided in one embodiment of this application.

[0043] Figure 7 This is a schematic diagram of the panel hopper and panel transfer mechanism provided in one embodiment of this application from another angle.

[0044] Figure 8 This is a schematic diagram of the structure of a workpiece transfer robot provided in one embodiment of this application.

[0045] Figure 9This is a schematic diagram of the suction section of a workpiece transfer robot provided in one embodiment of this application.

[0046] Figure 10 This is a schematic diagram of the workpiece pallet loading mechanism provided in one embodiment of this application.

[0047] Figure 11 This is a schematic diagram of the cover plate loading mechanism provided in one embodiment of this application.

[0048] Figure 12 A schematic diagram of the jig tray conveying mechanism provided in one embodiment of this application.

[0049] Figure 13 This is a partial view of an automatic feeding system provided in one embodiment of this application, showing a structural schematic diagram of the fixture unloading and transfer mechanism and the fixture receiving mechanism.

[0050] Figure 14 This is a schematic diagram of the workpiece hanging and feeding mechanism provided in one embodiment of this application.

[0051] Figure 15 This is a schematic diagram of the structure of a workpiece suction assembly provided in one embodiment of this application.

[0052] Figure 16 This is a schematic diagram of the workpiece suction assembly provided in one embodiment of this application from another angle.

[0053] Figure 17 This is a schematic diagram of the structure of the exchange loading component provided in one embodiment of this application.

[0054] Figure 18 This is a schematic diagram of the interchangeable loading assembly provided in one embodiment of this application from another angle.

[0055] Figure 19 This is a schematic diagram of the structure of a workpiece bearing assembly provided in one embodiment of this application.

[0056] Explanation of reference numerals in the attached figures:

[0057] 1. Machine base; 11. Table; 12. Lifting window; 13. Panel; 14. Cover plate; 15. Workpiece tray; 16. Fixture tray;

[0058] 100. Circulating transmission mechanism; 101. Transmission guide rail; 1011. Starting end; 1012. Ending end; 102. Transmission seat; 103. Upper transmission rail; 104. Lower transmission rail; 105. Transmission lifting mechanism;

[0059] 210. Workpiece pallet loading mechanism; 211. First pallet compartment; 212. Second pallet compartment; 213. Pallet transfer mechanism;

[0060] 220. Workpiece hanging and feeding mechanism; 221. Frame; 222. Workpiece bearing assembly; 223. Workpiece suction assembly; 224. Workpiece transfer assembly; 225. Exchange loading assembly;

[0061] 2221. Second pulley assembly; 2222. Second drive mechanism; 2223. Connecting block; 2224. Support plate; 2225. Second transmission belt; 2226. Second drive pulley; 2227. Second driven pulley; 2229. Third slide rail;

[0062] 2231. Transfer connecting plate; 2232. Guide rail plate; 2233. Vertical slide rail; 2234. Vertical slider; 2235. Slider connecting plate; 2236. First lifting mechanism; 2237. Rotary drive mechanism; 2238. Rotating rod; 2239. Suction head; 22340. Suction nozzle;

[0063] 2241. Translation drive mechanism; 2242. Lateral guide rail;

[0064] 2251. Loading bracket; 2252. Drive mounting plate; 2253. First slide rail; 2254. Second slide rail; 2255. First positioning frame; 2256. Second positioning frame; 2257. Second lifting mechanism; 226. First pulley assembly; 2261. First driving pulley; 2262. First driven pulley; 2263. First transmission belt; 2264. Lower belt; 2265. Upper belt; 2266. First placement plate; 2267. Second placement plate; 2268. Workpiece positioning block;

[0065] 227. Hanging frame; 2271. Bayonet section;

[0066] 300. Panel hopper; 301. Hopper base; 302. Panel hopper; 303. Panel transfer assembly; 304. Push guide rail; 305. Panel pushing mechanism;

[0067] 400. Panel transfer mechanism; 401. Panel transfer drive mechanism; 402. Panel clamping claw;

[0068] 500. Workpiece transfer robot; 501. Base; 502. Multi-axis robotic arm; 503. Suction mechanism; 504. Suction unit; 5041. Telescopic actuator; 5042. Suction seat; 5043. Rotary actuator; 5044. Rotary shaft; 5045. Suction cup; 5046. Position sensor; 5047. Sensing element; 5048. Sensing unit;

[0069] 600. Visual inspection device; 601. Inspection light source; 602. Inspection camera;

[0070] 700. Cover plate loading mechanism;

[0071] 710. Fixture tray conveying mechanism; 711. First fixture tray compartment; 7111. First lifting mechanism; 7112. First clamping mechanism;

[0072] 712. Second jig storage compartment; 7121. Second lifting mechanism; 7122. Second clamping mechanism; 7123. Carrier mechanism;

[0073] 713. Cover plate conveying mechanism; 7131. Conveyor motor; 7132. Conveyor drive roller; 7133. Conveyor belt; 7134. Conveyor driven pulley;

[0074] 714. Base;

[0075] 720. Cover plate transfer mechanism; 721. Cover plate transfer drive mechanism; 722. Cover plate transfer guide rail; 723. Cover plate picking mechanism;

[0076] 800. Fixture unloading and transfer mechanism; 801. Unloading and transfer drive mechanism; 802. Unloading and transfer guide rail; 803. Fixture unloading and clamping mechanism;

[0077] 900. Fixture receiving mechanism; 901. Receiving belt; 902. Receiving drive mechanism. Detailed Implementation

[0078] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0079] In this document, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0080] Furthermore, in this article, directional terms such as "upper" and "lower" are defined relative to the orientation of the structure as shown in the attached drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the structure.

[0081] Please see Figures 1 to 19This application provides an automatic feeding system for assembling workpieces requiring PVD coating into a fixture. The fixture includes a matching panel 13 and a cover plate 14. The panel 13 and the cover plate 14 are provided with receiving grooves for placing workpieces, and the workpieces are clamped between the panel 13 and the cover plate 14.

[0082] Specifically, in combination Figures 1 to 4 The automatic feeding system provided in this application includes:

[0083] Machine base 1, which includes a platform 11 for support;

[0084] The circulating transmission mechanism 100 includes a transmission guide rail 101 and a plurality of transmission seats 102. The transmission guide rail 101 is arranged parallel to the surface of the machine base 1. The transmission seats 102 move cyclically along the transmission guide rail 101. The upper surface of the transmission seat 102 is set as a plane for placing components. The transmission guide rail 101 includes a starting end 1011 and an ending end 1012.

[0085] The workpiece loading mechanism is located on the upper surface of the platform 11 and is used to store and transport workpieces to be assembled.

[0086] Panel hopper 300, the panel hopper 300 is disposed on the upper surface of the table 11 and close to the starting end 1011 of the transfer guide rail 101, and is used to place and transfer the panel 13 of the fixture.

[0087] Panel transfer mechanism 400 is disposed on the upper surface of the platform 11 and close to the panel hopper 300, and is used to pick up the panel 13 from the panel hopper 300 and transfer it to the conveyor seat 102.

[0088] The workpiece transfer robot 500 is set on the upper surface of the table 11 and close to the workpiece feeding mechanism. It is used to pick up the workpieces from the workpiece feeding mechanism and transfer them to the panel 13 placed on the conveyor seat 102.

[0089] A vision inspection device 600 is installed on the machine base 1 and located within the activity path of the workpiece transfer robot 500. The vision inspection device 600 performs machine vision recognition on the workpiece picked up by the workpiece transfer robot 500 to obtain the planar angle information of the workpiece. The workpiece transfer robot 500 adjusts the angle of the picked-up workpiece according to the planar angle information of the workpiece and the preset panel position of the transfer seat 102 so that the workpiece can be placed on the panel 13 of the transfer seat 102.

[0090] The cover plate loading mechanism 700 is located on the upper surface of the table 11 and close to the end 1012 of the transmission guide rail 101. It is used to place the cover plate 14 of the fixture and transfer the cover plate 14 to the upper part of the panel 13 of the conveyor seat 102.

[0091] The fixture unloading and transfer mechanism 800 is disposed on the upper surface of the platform 11 and near the end 1012 of the transfer guide rail 101, and is used to pick up the fixture with the panel 13 and cover plate 14 assembled on the transfer seat 102.

[0092] The fixture receiving mechanism 900 is located on the upper surface of the platform 11 and close to the fixture unloading and transfer mechanism 800 to collect the fixtures picked up by the fixture unloading and transfer mechanism 800.

[0093] Combination Figure 3 and Figure 4 As shown, in one embodiment, the transmission guide rail 101 includes an upper transmission rail 103 disposed on the upper surface of the platform 11 and a lower transmission rail 104 disposed on the lower surface of the platform 11. The platform 11 is provided with a lifting window 12 at the starting end 1011 and the ending end 1012 of the transmission guide rail 101 for the vertical passage of the transmission seat 102. The two lifting windows 12 are provided with a transmission lifting mechanism 105 for raising and lowering the transmission seat 102. The transmission lifting mechanism 105 connects the upper transmission rail 103 and the lower transmission rail 104. The transmission seat 102 rises or falls between the upper transmission rail 103 and the lower transmission rail 104 so that the transmission seat 102 moves cyclically along the transmission guide rail 101.

[0094] The transmission guide rail 101 extends along the process position of each mechanism to facilitate the operation of each process.

[0095] In order to enable the conveyor seat 102 to move as required, the circulating transmission mechanism 100 is also provided with a drive mechanism for each conveyor seat 102 on the traction drive transmission guide rail 101, such as using a motor to drive the traction rope, or other implementation methods, which will not be listed one by one in this application.

[0096] Combination Figure 4 and Figure 5 As shown, in one embodiment, the visual inspection device 600 includes a detection light source 601 and a detection camera 602. The detection light source 601 is positioned upward to emit detection light, and the detection camera 602 is positioned upward to capture images of the workpiece.

[0097] Combination Figure 6 and Figure 7 As shown, in one embodiment, the panel hopper 300 includes:

[0098] The hopper seat 301 is fixedly installed on the upper surface of the platform 11;

[0099] Panel storage compartment 302, the lower end of panel storage compartment 302 is set on hopper base 301, and panels 13 are stacked vertically in panel storage compartment 302;

[0100] The panel hopper 300 also includes a panel transfer component 303, a push rail 304, and a panel push mechanism 305. The panel transfer component 303 and the push rail 304 are horizontally arranged on the hopper base 301. The panel push mechanism 305 drives the panel transfer component 303 to move along the push rail 304. The top of the hopper base 301 cooperates with the panel transfer component 303. The panel transfer component 303 is configured to accommodate the panel 13 and push the panel 13 horizontally out from the bottom of the hopper base 301.

[0101] Specifically, the hopper seat 301 can be mounted above the panel pushing mechanism 305 and the pushing guide rail 304, and the top surface of the hopper seat 301 is provided with a slot to accommodate the movement of the panel transfer assembly 303.

[0102] The upper part of the panel transfer assembly 303 is a horizontal plate with a slot for accommodating the panel 13. The lower part of the horizontal plate is connected to the drive end of the panel pushing mechanism 305, which drives the panel transfer assembly 303 to move.

[0103] The panel compartment 302 can be constructed by assembling vertical panels. A panel thickness-sized hole is provided at the bottom. When the bottom panel 13 falls into the slot of the panel transfer component 303, the panel transfer component 303 can move horizontally to bring the bottom panel 13 out to the preset work station.

[0104] The panel pushing mechanism 305 can be driven by a servo motor. In other embodiments, a cylinder or other actuator can also be used.

[0105] Combination Figure 6 and Figure 7 In one embodiment, the panel transfer mechanism 400 includes a panel transfer drive mechanism 401 and a panel clamping claw 402. The panel clamping claw 402 is laterally movably disposed on the transfer drive mechanism. The panel clamping claw 402 is configured to pick up and place the panel 13. The panel transfer drive mechanism 401 drives the panel clamping claw 402 to move laterally.

[0106] The panel transfer drive mechanism 401 can be driven by a servo motor. In other embodiments, a cylinder or other actuator can also be used.

[0107] Combination Figure 8 As shown, in one embodiment, the workpiece transfer robot 500 includes a base 501, a multi-axis robotic arm 502, and a suction mechanism 503. The base 501 is fixedly disposed on the upper surface of the platform 11, the multi-axis robotic arm 502 is rotatably disposed on the base 501, and the suction mechanism 503 is disposed at the free end of the multi-axis robotic arm 502; the suction mechanism 503 includes a plurality of suction parts 504 for suctioning workpieces.

[0108] Through the design of the multi-axis robotic arm 502, the workpiece transfer robot 500 can achieve multi-directional and multi-angle movement, improving the flexibility and efficiency of transfer and loading.

[0109] The base 501 may have a built-in rotating part to drive the multi-axis robotic arm 502 to rotate. The multi-axis robotic arm 502 may be a four-axis robotic arm, a five-axis robotic arm, or a six-axis robotic arm.

[0110] Combination Figure 9 As shown, in one embodiment, the suction unit 504 includes a telescopic driver 5041, a suction seat 5042, a rotary driver 5043, a rotary shaft 5044, and a suction cup 5045. The telescopic driver 5041 is fixedly disposed on the suction mechanism 503. The telescopic end of the telescopic driver 5041 is connected to the suction seat 5042 to drive the suction seat 5042 to telescopically move. The rotary driver 5043 is disposed on the suction seat 5042 to move synchronously. The rotary shaft 5044 is drivenly connected to the rotary output end of the rotary driver 5043. The suction cup 5045 is disposed at the bottom of the rotary shaft 5044 to pick up and rotate the workpiece.

[0111] In this embodiment, the suction unit 504 further includes a sensor 5047 and a position sensor 5046. The sensor 5047 is fixedly connected to the rotating shaft 5044 to rotate synchronously with the rotating shaft 5044. The position sensor 5046 is installed on the suction seat 5042. The sensor 5047 and the position sensor 5046 are coupled together to sense the rotation position of the rotating shaft 5044.

[0112] In this embodiment, the position sensor 5046 is a recessed photoelectric sensor. Specifically, the recessed photoelectric sensor can be a commercially available product, such as existing products from companies like Omron.

[0113] In other embodiments, the position sensor 5046 may also be other sensors.

[0114] In order to form a better coupling with the groove-type photoelectric sensor, in this embodiment, the sensing element 5047 extends outward to provide a sensing part 5048, which is configured to be coupled with the groove of the groove-type photoelectric sensor.

[0115] Combination Figure 10 As shown, in one embodiment, the workpiece loading mechanism includes a workpiece tray loading mechanism 210 for storing and moving workpiece trays 15, which are used to arrange and place workpieces.

[0116] Specifically, the workpiece pallet loading mechanism 210 includes a first pallet compartment 211, a second pallet compartment 212, and a pallet transfer mechanism 213 disposed on the upper surface of the platform 11. The pallet transfer mechanism 213 is disposed between the first pallet compartment 211 and the second pallet compartment 212. The first pallet compartment 211 and the second pallet compartment 212 are configured to vertically stack workpiece pallets 15. The pallet transfer mechanism 213 is configured to move the workpiece pallet 15 from the first pallet compartment 211 to a position where the workpiece transfer robot 500 picks up the workpiece and transfer the workpiece pallet 15 to the second pallet compartment 212.

[0117] The first pallet compartment 211 and the second pallet compartment 212 can stack workpiece pallets 15, and their bottoms can be equipped with lifting and removing or receiving mechanisms for the workpiece pallets 15. The workpiece pallet 15 containing workpieces at the bottom of the first pallet compartment 211 is moved to the pallet transfer mechanism 213. After the workpiece transfer robot 500 picks up the workpiece, the pallet transfer mechanism 213 then transfers the workpiece pallet 15 to the second pallet compartment 212, where the bottom of the second pallet compartment 212 receives and stores the empty workpiece pallet 15.

[0118] The pallet transfer mechanism 213 can adopt a transmission belt structure, and the workpiece pallet 15 can move with the transmission of the belt.

[0119] Combination Figures 14 to 19 In another embodiment, the workpiece loading mechanism includes a workpiece hanging bar loading mechanism 220. The workpiece hanging bar loading mechanism 220 includes a frame 221, a workpiece bearing component 222, a workpiece suction component 223, a workpiece transfer component 224, and an exchange loading component 225. The frame 221 is fixedly mounted on the platform 11, the workpiece transfer component 224 is mounted on the frame 221, the workpiece suction component 223 is movably mounted on the workpiece transfer component 224, and the workpiece bearing component 222 and the exchange loading component 225 are mounted on the platform 11.

[0120] Specifically, in combination Figure 14 As shown, the workpiece transfer assembly 224 includes a translation drive mechanism 2241 and a transverse guide rail 2242. The translation drive mechanism 2241 and the transverse guide rail 2242 are fixedly mounted on the frame 221. The workpiece suction assembly 223 is slidably mounted on the transverse guide rail 2242. The translation drive mechanism 2241 is connected to the workpiece suction assembly 223 in a transmission manner. The translation drive mechanism 2241 drives the workpiece suction assembly 223 to move laterally along the transverse guide rail 2242.

[0121] The translation drive mechanism 2241 can be a servo motor or a stepper motor, and together with a precision transmission mechanism (such as belt drive or gear drive), it can achieve high-precision position control.

[0122] The use of the transverse guide rail 2242 ensures the smoothness and straightness of the movement process, further improving the positioning accuracy.

[0123] In other embodiments, the translation drive mechanism 2241 may also employ a high-precision drive cylinder, such as a pneumatic cylinder or a hydraulic cylinder.

[0124] Combination Figure 15 , Figure 16 As shown, in one embodiment, the workpiece suction assembly 223 includes a transfer connecting plate 2231, a guide rail plate 2232, a vertical slide rail 2233, a vertical slider 2234, a slider connecting plate 2235, a first lifting mechanism 2236, a rotary drive mechanism 2237, a rotating rod 2238, and a plurality of suction heads 2239.

[0125] in:

[0126] The transfer connecting plate 2231 is driven by the translation drive mechanism 2241 and slidably mounted on the transverse guide rail 2242. The guide rail plate 2232 is fixedly mounted on the lower surface of the transfer connecting plate 2231. The slider connecting plate 2235 is driven by the first lifting mechanism 2236 and is parallel to the guide rail plate 2232. The vertical slide rail 2233 is fixedly mounted on one side surface of the guide rail plate 2232. The vertical slider 2234 is fixedly connected to one side surface of the slider connecting plate 2235 and slides with the vertical slide rail 2233. The rotary drive mechanism 2237 is fixedly mounted on the slider connecting plate 2235. The rotating rod 2238 is driven by the rotary drive mechanism 2237. The suction head 2239 is fixedly mounted on the rotating rod 2238.

[0127] By combining three degrees of freedom—lateral movement, vertical lifting, and rotation—the workpiece picking assembly 223 can achieve flexible movement and precise positioning for the picking operation.

[0128] Specifically, the first lifting mechanism 2236 can be an electric push rod or a telescopic cylinder to drive the sliding connecting plate, thereby controlling the up and down movement of the suction head 2239.

[0129] The rotary drive mechanism 2237 can be a rotary cylinder or a servo motor to drive the rotating rod 2238 to rotate, thereby controlling the direction of the suction head 2239.

[0130] The design of the vertical slide rail 2233 and the vertical slider 2234 can improve the stability and straightness of the lifting process.

[0131] In this embodiment, a suction nozzle 22340 for suctioning workpieces is provided on one side of the bottom of the suction head 2239. The suction nozzle 22340 can be connected to an external air source to control suction and release.

[0132] The design of multiple suction heads 2239 allows the device to process multiple workpieces simultaneously or adapt to workpieces of different sizes.

[0133] Combination Figure 17 , Figure 18 As shown, in one embodiment, the exchange loading assembly 225 includes a loading bracket 2251, a drive mounting plate 2252, a first slide rail 2253, a second slide rail 2254, a first positioning frame 2255, a second positioning frame 2256, a second lifting mechanism 2257, and a first pulley group 226.

[0134] The drive mounting plate 2252 is disposed on the loading bracket 2251. The drive mounting plate 2252 can be used to install a driver (not shown in the figure) for driving the first pulley group 226, such as a servo motor, stepper motor, rotary cylinder, or other drive mechanisms with rotational function.

[0135] The first pulley assembly 226 includes a first driving pulley 2261, a first driven pulley 2262, and a first transmission belt 2263. The first driving pulley 2261 and the second driven pulley 2227 are respectively disposed at both ends of the loading bracket 2251, and the first transmission belt 2263 is wound between the first driving pulley 2261 and the second driven pulley 2227. The first driving pulley 2261 is connected to a driver mounted on the drive mounting plate 2252.

[0136] The first slide rail 2253 is laterally arranged on one side of the loading bracket 2251, and the second slide rail 2254 is laterally arranged on the other side of the loading bracket 2251; the second lifting mechanism 2257 is slidably arranged on the first slide rail 2253 and fixedly connected to the lower belt 2264 of the first transmission belt 2263; the first positioning frame 2255 is drivenly connected to the second lifting mechanism 2257, and the second lifting mechanism 2257 drives the first positioning frame 2255 to move in the vertical direction; the second positioning frame 2256 is slidably connected to the second slide rail 2254 and fixedly connected to the upper belt 2265 of the first transmission belt 2263; the upper ends of the first positioning frame 2255 and the second positioning frame 2256 are both provided with a plane for placing the workpiece positioning block 2268.

[0137] Specifically, in combination Figure 18 As shown, the upper end of the first positioning frame 2255 is provided with a first placement plate 2266 for placing the workpiece positioning block 2268, and the upper end of the second positioning frame 2256 is provided with a second placement plate 2267 for placing the workpiece positioning block 2268.

[0138] The workpiece positioning block 2268 has a receiving groove adapted to the workpiece, which can be used to position and place the workpiece. In this embodiment, each workpiece positioning block 2268 is adapted to accommodate one workpiece; in other embodiments, each workpiece positioning block 2268 may be provided with multiple receiving grooves for placing workpieces.

[0139] Through the cooperation of the first pulley group 226 and the servo motor and other drivers, the synchronous reverse movement of the first positioning frame 2255 and the second positioning frame 2256 is realized, which greatly improves the efficiency of workpiece exchange.

[0140] The second lifting mechanism 2257 enables the first positioning frame 2255 to move vertically. Combined with the synchronous and reverse movement design of the first positioning frame 2255 and the second positioning frame 2256, the other positioning frame can remove the processed workpiece while one positioning frame is placing the workpiece, which greatly improves production efficiency.

[0141] The second lifting mechanism 2257 can be a lifting cylinder. In other embodiments, it can also be a drive mechanism with telescopic function, such as an electric push rod.

[0142] Combination Figure 19 As shown, in one embodiment, the workpiece bearing assembly 222 includes a second pulley group 2221, a second drive mechanism 2222, a connecting block 2223, and a support plate 2224.

[0143] The second pulley assembly 2221 includes a second transmission belt 2225, a second driving pulley 2226 and a second driven pulley 2227. The second transmission belt 2225 is wound between the second driving pulley 2226 and the second driven pulley 2227. The second drive mechanism 2222 is connected to the second driving pulley 2226 in a transmission connection.

[0144] The lower end of the connecting block 2223 is fixedly connected to the second transmission belt 2225, and the upper end of the connecting block 2223 is fixedly connected to the lower surface of the support plate 2224. Through the cooperation of the second pulley group 2221 and the second drive mechanism 2222, the support plate 2224 can move smoothly, which facilitates the conveying and positioning of the workpiece.

[0145] To ensure the straightness and stability of the movement of the support plate 2224, the workpiece bearing assembly 222 also includes a third slide rail 2229, and the support plate 2224 is slidably connected to the third slide rail 2229.

[0146] In this embodiment, the third slide rail 2229 is set as two parallel rails. In other embodiments, the number of the third slide rail 2229 can be increased or decreased as needed.

[0147] In this embodiment, the second drive mechanism 2222 adopts a servo motor. In other embodiments, a stepper motor, a rotary cylinder, or other drive mechanisms with rotation functions may also be adopted.

[0148] In one embodiment, a hanging frame 227 is placed on the upper surface of the support plate 2224, and the hanging frame 227 is provided with a latching portion 2271 for securing workpieces. Multiple latching portions 2271 can be arranged in a row, and multiple workpieces to be processed can be latched and placed in the latching portions 2271 of the hanging frame 227, which can improve production efficiency.

[0149] In this embodiment, the workpiece transfer assembly 224, the workpiece suction assembly 223, the workpiece carrying assembly 222, and the exchange loading assembly 225 are configured as two sets, which can improve production efficiency. In other embodiments, the number of workpiece transfer assemblies 224 can be increased or decreased as needed.

[0150] In this application, the workpiece loading mechanism may include both a workpiece pallet loading mechanism 210 and a workpiece hanging rail loading mechanism 220, thereby improving the flexibility of workpiece loading.

[0151] In this application, two workpiece transfer robots 500 can be configured, and both workpiece transfer robots 500 can pick up workpieces from the same workpiece loading mechanism; or, one workpiece transfer robot 500 picks up workpieces from the workpiece tray loading mechanism 210, and the other workpiece transfer robot 500 picks up workpieces from the workpiece hanging bar loading mechanism 220.

[0152] Combination Figure 11 As shown, in one embodiment, the cover plate loading mechanism 700 includes: a fixture tray 16 conveying mechanism 710 for storing and moving the fixture tray 16, on which the fixture cover plate 14 is placed; and a cover plate transfer mechanism 720 for transferring the fixture cover plate 14 to the transfer seat 102.

[0153] The jig tray conveying mechanism 710 includes a first jig tray compartment 711, a second jig tray compartment 712, and a cover plate conveying mechanism 713. The first jig tray compartment 711 and the second jig tray compartment 712 are vertically stacked jig trays 16. The cover plate conveying mechanism 713 is disposed between the first jig tray compartment 711 and the second jig tray compartment 712. The cover plate conveying mechanism 713 is configured to move the jig tray 16 containing the cover plate 14 from the first jig tray compartment 711 to a position where the cover plate transfer mechanism 720 picks up the cover plate 14 and then convey the jig tray 16 to the second jig tray compartment 712.

[0154] Specifically, in combination Figure 12 As shown, the jig tray conveying mechanism 710 includes a base 714.

[0155] The first jig compartment 711 is provided with a first lifting plate mechanism 7111 and a first clamping plate mechanism 7112; the first lifting plate mechanism 7111 is located at the bottom of the first jig compartment 711 and is used to lift the jig tray 16 placed in the first jig compartment 711 in the vertical direction; the first clamping plate mechanism 7112 is located on the side of the first jig compartment 711 and is used to clamp the jig tray 16 lifted by the first lifting plate mechanism 7111.

[0156] The second jig tray 712 is provided with a second lifting plate mechanism 7121, a second clamping plate mechanism 7122, and a carrier plate mechanism 7123. The second lifting plate mechanism 7121 is located at the bottom of the second jig tray 712 and is used to lift the jig tray 16 placed in the second jig tray 712 vertically. The second clamping plate mechanism 7122 is located on the side of the second jig tray 712 and is used to hold part of the jig tray 16 lifted by the second lifting plate mechanism 7121. The carrier plate mechanism 7123 is located at the bottom of the second jig tray 712 and is adapted to the jig tray conveying mechanism 710. It is used to receive the jig tray 16 conveyed by the jig tray conveying mechanism 710 and move it into the second jig tray 712.

[0157] The carrier plate mechanism 7123 can be driven by a motor and a pulley.

[0158] The jig tray conveying mechanism 710 includes a conveying motor 7131, a conveying drive roller 7132, a conveying belt 7133, and a conveying driven wheel 7134. The conveying motor 7131 is fixedly mounted on the machine base 714 and is connected to the conveying drive roller 7132. The conveying belt 7133 is connected between the conveying drive roller 7132 and the conveying driven wheel 7134.

[0159] To improve the stability of transmission, in this embodiment, two conveying driven wheels 7134 and two conveying belts 7133 are provided. The two conveying driven wheels 7134 and two conveying belts 7133 are arranged on both sides of the upper surface of the machine base 714 to support the conveying fixture disk 16.

[0160] Combination Figure 11 As shown, the cover plate transfer mechanism 720 includes a cover plate transfer drive mechanism 721, a cover plate transfer guide rail 722, and a cover plate picking mechanism 723. The cover plate transfer drive mechanism 721 is arranged laterally on the cover plate transfer guide rail 722, and the cover plate picking mechanism 723 is movably arranged on the cover plate transfer guide rail 722. The cover plate picking mechanism 723 is configured to pick up and release the cover plate 14. The cover plate transfer drive mechanism 721 drives the cover plate picking mechanism 723 to reciprocate along the cover plate transfer guide rail 722 so that the cover plate picking mechanism 723 picks up the cover plate 14 and places it on the panel 13 of the transfer seat 102.

[0161] Combination Figure 13As shown, in one embodiment, the fixture unloading and transfer mechanism 800 includes an unloading and transfer drive mechanism 801, an unloading and transfer guide rail 802, and a fixture unloading and clamping mechanism 803.

[0162] Specifically, the unloading and transfer drive mechanism 801 is fixedly mounted on the machine base 1, the unloading and transfer guide rail 802 is laterally mounted on the unloading and transfer drive mechanism 801, and the fixture unloading and clamping mechanism 803 is slidably mounted on the unloading and transfer guide rail 802. The unloading and transfer drive mechanism 801 can drive the fixture unloading and clamping mechanism 803 to move laterally along the unloading and transfer guide rail 802. The fixture unloading and clamping mechanism 803 can clamp and release the fixture to transfer the fixture assembled on the conveyor seat 102 to the fixture receiving mechanism 900.

[0163] The unloading and transfer drive mechanism 801 may include a servo motor to provide the driving force for movement. The fixture unloading and clamping mechanism 803 may be configured as a cylinder-driven lifting and clamping mechanism.

[0164] In one embodiment, the jig receiving mechanism 900 includes a receiving belt 901 and a receiving drive mechanism 902. The receiving drive mechanism 902 drives the receiving belt 901 to move. The receiving belt 901 is used to receive and transport assembled jigs so that operators or other automated equipment can collect the jigs with assembled workpieces.

[0165] In this application, the automatic feeding system also includes a controller for controlling the movement of each mechanism, processing the image signals acquired by the vision inspection device 600, and sending adjustment signals to the workpiece transfer robot 500. The controller may include general-purpose memory, processing chips, and other basic components. The control program can implement the basic functions of this application based on existing open-source technologies or programs provided by device manufacturers. This application does not impose any special limitations or descriptions.

[0166] This application provides an automatic feeding method for assembling workpieces requiring PVD coating into a fixture, the fixture including a matching panel and cover plate. This method, based on the aforementioned automatic feeding system, specifically includes the following steps:

[0167] S1. Place the workpiece on the workpiece loading mechanism, place the panel on the panel hopper, and place the cover plate on the cover plate loading mechanism.

[0168] S2-1, The workpiece loading mechanism moves the workpiece to be picked up to the preset position;

[0169] S2-2, The panel transfer mechanism picks up the panel from the panel hopper and places it on the conveyor seat of the circulating conveyor mechanism;

[0170] S3. The workpiece transfer robot picks up the workpiece from the workpiece loading mechanism and moves the picked-up workpiece to the top of the vision inspection device. The vision inspection device performs visual recognition on the workpiece to obtain the planar angle information of the workpiece. The workpiece transfer robot adjusts the angle of the picked-up workpiece according to the planar angle information of the workpiece and the preset panel position of the conveyor seat so that the workpiece can be placed on the panel of the conveyor seat.

[0171] S4. The conveyor moves to the next station, and the cover plate loading mechanism transfers the cover plate and places it on the upper part of the upper panel of the conveyor.

[0172] S5. The fixture unloading and transfer mechanism picks up the fixture on the conveyor seat and transfers it to the fixture receiving mechanism.

[0173] S6. Collect the fixture from the fixture receiving mechanism to complete a single loading operation;

[0174] S7. Repeat the above steps for feeding materials.

[0175] The order of steps S2-1 and S2-2 can be performed simultaneously or interchanged without affecting the implementation of the solution in this application.

[0176] The automatic feeding system and method provided by the embodiments of this application have been described in detail above. Specific embodiments have been used to explain the principles and implementation methods of this application. The above description is only for the purpose of helping to understand the method and its core mechanism of this application. At the same time, for those skilled in the art, there will be changes in specific embodiments and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An automatic feeding system for assembling workpieces requiring PVD coating into a fixture, the fixture comprising a matching panel and a cover plate, the panel and the cover plate being provided with receiving grooves for placing the workpiece, the workpiece being clamped between the panel and the cover plate, characterized in that, The automatic feeding system includes: A machine tool, the machine tool including a platform for support; A circulating transmission mechanism includes a transmission guide rail and several conveyor seats. The transmission guide rail is arranged parallel to the surface of the machine base. The conveyor seats move cyclically along the transmission guide rail. The upper surface of the conveyor seats is set as a plane for placing components. The transmission guide rail includes a starting end and an ending end. A workpiece loading mechanism is disposed on the upper surface of the platform and is used to store and transport workpieces to be assembled. A panel hopper is disposed on the upper surface of the platform and near the starting end of the transmission guide rail, for placing and conveying the panel of the fixture. A panel transfer mechanism is disposed on the upper surface of the platform and close to the panel hopper, for picking up the panel from the panel hopper and transferring it to the conveyor seat; A workpiece transfer robot is disposed on the upper surface of the platform and close to the workpiece loading mechanism, and is used to pick up the workpieces from the workpiece loading mechanism and transfer them to the panel placed on the conveyor seat. A visual inspection device is installed on the machine tool and located within the activity path of the workpiece transfer robot. The visual inspection device performs machine vision recognition on the workpiece picked up by the workpiece transfer robot to obtain the planar angle information of the workpiece. The workpiece transfer robot adjusts the angle of the picked-up workpiece according to the planar angle information of the workpiece and the preset panel position of the transfer seat so that the workpiece can be placed on the panel of the transfer seat. A cover plate loading mechanism is disposed on the upper surface of the platform and near the end of the transmission guide rail, for placing the cover plate of the fixture and transferring the cover plate to the upper part of the panel of the conveyor seat; A fixture unloading and transfer mechanism is provided on the upper surface of the platform and near the end of the transmission guide rail, for picking up the fixture with the panel and cover plate assembled on the transfer seat; A fixture receiving mechanism is provided on the upper surface of the platform and close to the fixture unloading and transfer mechanism to collect the fixture picked up by the fixture unloading and transfer mechanism.

2. The automatic feeding system according to claim 1, characterized in that: The transmission guide rail includes an upper transmission rail disposed on the upper surface of the platform and a lower transmission rail disposed on the lower surface of the platform. The platform is provided with a lifting window at the beginning and end of the transmission guide rail for the vertical passage of the transmission seat. The two lifting windows are provided with a transmission lifting mechanism for raising and lowering the transmission seat. The transmission lifting mechanism connects the upper transmission rail and the lower transmission rail. The transmission seat rises or falls between the upper transmission rail and the lower transmission rail to make the transmission seat move cyclically along the transmission guide rail.

3. The automatic feeding system according to claim 1, characterized in that: The visual inspection device includes a detection light source and a detection camera. The detection light source is positioned upward to emit detection light, and the detection camera is positioned upward to capture an image of the workpiece.

4. The automatic feeding system according to claim 1, characterized in that: The panel hopper includes: A hopper seat, which is fixedly mounted on the upper surface of the platform; A panel compartment, the lower end of which is disposed on the hopper base, wherein the panels are stacked vertically in the panel compartment; The panel hopper also includes a panel transfer component, a push rail, and a panel push mechanism. The panel transfer component and the push rail are horizontally arranged on the hopper base. The panel push mechanism drives the panel transfer component to move along the push rail. The top of the hopper base cooperates with the panel transfer component. The panel transfer component is configured to accommodate the panel and push the panel horizontally out from the bottom of the hopper base.

5. The automatic feeding system according to claim 4, characterized in that: The panel transfer mechanism includes a panel transfer drive mechanism and a panel clamping claw. The panel clamping claw is laterally movably disposed on the panel transfer drive mechanism. The panel clamping claw is configured to pick up and place the panel. The panel transfer drive mechanism drives the panel clamping claw to move laterally.

6. The automatic feeding system according to claim 1, characterized in that: The workpiece transfer robot includes a base, a multi-axis robotic arm, and a suction mechanism. The base is fixedly mounted on the upper surface of the platform, the multi-axis robotic arm is rotatably mounted on the base, and the suction mechanism is located at the free end of the multi-axis robotic arm. The suction mechanism includes several suction parts for suctioning the workpiece. The suction unit includes a telescopic driver, a suction seat, a rotary driver, a rotary shaft, and a suction cup. The telescopic driver is fixedly mounted on the suction mechanism. The telescopic end of the telescopic driver is connected to the suction seat to drive the suction seat to telescopically move. The rotary driver is mounted on the suction seat to move synchronously. The rotary shaft is drivenly connected to the rotary output end of the rotary driver. The suction cup is mounted at the bottom of the rotary shaft to pick up and rotate the workpiece.

7. The automatic feeding system according to claim 1, characterized in that: The workpiece loading mechanism includes a workpiece pallet loading mechanism for storing and moving workpiece pallets, wherein the workpiece pallets are used to arrange and place the workpieces; The workpiece pallet loading mechanism includes a first pallet compartment, a second pallet compartment, and a pallet transfer mechanism disposed on the upper surface of the platform. The pallet transfer mechanism is disposed between the first pallet compartment and the second pallet compartment. The first pallet compartment and the second pallet compartment are configured to vertically stack the workpiece pallets. The pallet transfer mechanism is configured to move the workpiece pallet from the first pallet compartment to a position where the workpiece transfer robot can pick up the workpiece and transfer the workpiece pallet to the second pallet compartment.

8. The automatic feeding system according to claim 1, characterized in that: The workpiece loading mechanism includes a workpiece hanging bar loading mechanism, which includes a frame, a workpiece bearing component, a workpiece suction component, a workpiece transfer component, and an exchange loading component. The frame is fixedly mounted on the platform, the workpiece transfer component is mounted on the frame, the workpiece suction component is movably mounted on the workpiece transfer component, and the workpiece bearing component and the exchange loading component are mounted on the platform.

9. The automatic feeding system according to claim 1, characterized in that: The cover plate loading mechanism includes: a fixture tray conveying mechanism for storing and moving a fixture tray, wherein the fixture tray holds the cover plate of the fixture; and a cover plate transfer mechanism for transferring the cover plate of the fixture to the conveyor seat. The fixture tray conveying mechanism includes a first fixture tray compartment, a second fixture tray compartment, and a fixture tray conveying mechanism. The fixture tray is vertically stacked in the first fixture tray compartment and the second fixture tray compartment. The fixture tray conveying mechanism is disposed between the first fixture tray compartment and the second fixture tray compartment. The fixture tray conveying mechanism is configured to move the fixture tray from the first fixture tray compartment to a position where the cover plate transfer mechanism can pick up the cover plate and then convey the fixture tray to the second fixture tray compartment. The cover plate transfer mechanism includes a cover plate transfer drive mechanism, a cover plate transfer guide rail, and a cover plate picking mechanism. The cover plate transfer drive mechanism is arranged laterally on the cover plate transfer guide rail, and the cover plate picking mechanism is movably disposed on the cover plate transfer guide rail. The cover plate picking mechanism is configured to pick up and release the cover plate. The cover plate transfer drive mechanism drives the cover plate picking mechanism to reciprocate along the cover plate transfer guide rail, so that the cover plate picking mechanism picks up the cover plate and places it on the panel of the transfer seat.

10. An automatic feeding method for assembling workpieces requiring PVD coating into a fixture, the fixture comprising a matching panel and a cover plate, characterized in that: The automatic feeding method is based on the automatic feeding system according to any one of claims 1-9, and includes the following steps: S1. Place the workpiece in the workpiece feeding mechanism, place the panel in the panel hopper, and place the cover plate in the cover plate feeding mechanism; S2-1, The workpiece loading mechanism moves the workpiece to be picked up to a preset position; S2-2, The panel transfer mechanism picks up the panel from the panel hopper and places it on the conveyor seat of the circulating transmission mechanism; S3. The workpiece transfer robot picks up the workpiece from the workpiece loading mechanism and moves the picked-up workpiece above the vision inspection device. The vision inspection device performs visual recognition on the workpiece to obtain the planar angle information of the workpiece. The workpiece transfer robot adjusts the angle of the picked-up workpiece according to the planar angle information of the workpiece and the preset panel position of the conveyor seat so that the workpiece can be placed on the panel of the conveyor seat. S4. The conveyor moves to the next station, and the cover plate loading mechanism transfers the cover plate and places it on the upper part of the upper panel of the conveyor. S5. The fixture unloading and transfer mechanism picks up the fixture on the conveyor seat and transfers it to the fixture receiving mechanism. S6. Collect the fixture from the fixture receiving mechanism to complete a single loading operation; S7. Repeat the above steps for feeding materials.

Images