Automated production system and method for anodizing process of metal workpiece

Abstract

The present invention relates to the field of mechanical parts processing and counting, and specifically to an automated production system and method for anodizing metal workpieces, wherein the production system includes a material rack for mounting a hanger, an AGV trolley for transferring the material rack, a top and bottom target system, and an overhead crane system; the top of the hanger is provided with two front and rear hooks, the inner side of the front hook is provided with a power strip, and the front hook is provided with a set screw; the top and bottom target system includes a track arranged in the front and rear directions, a target temporary storage rack arranged along the track from front to back, a hanger locking system and a loading and unloading dock, and a target transfer system; the hanger locking system includes a servo system and an electric wrench, the servo system drives the electric wrench to align and tighten / loosen the hanger's set screws; the overhead crane system includes an overhead track and a carrier moving along the overhead track, the carrier being capable of grabbing / releasing the target. The above system can fully automatically perform the hanger top and bottom target operation during anodizing production.

Description

Technical Field

[0001] The present invention relates to the field of mechanical parts processing counting, and in particular to an automated production system and method for an anodizing process of a metal workpiece. Background Art

[0002] Home appliances and digital 3C products often use metal, especially aluminum alloy, for their housings. Anodizing is a common metal surface modification process that can increase the hardness and wear resistance of the metal surface, while also achieving a more aesthetically pleasing appearance.

[0003] The production process of metal parts shell generally includes forming, surface sandblasting or brushing, surface cleaning pre-treatment, anodizing, and post-treatment.

[0004] Parts can be formed using various processes, including stamping, casting, and extrusion. CNC machining can be used for applications requiring higher precision. The surface of molded parts is susceptible to scratches and burrs. These defects do not affect the structural strength and mechanical properties of the part, but they do significantly impact its appearance. Therefore, surface treatments, typically sandblasting and wire drawing, are often used for parts with high aesthetic requirements.

[0005] During the forming and surface treatment stages, parts are isolated from each other. Some high-value parts, such as mobile phone and tablet casings, are placed in dedicated plastic frames. During anodizing, multiple isolated parts are secured to hangers. These hangers, along with the parts, are then placed on a target, which drives the parts through the anodizing tank.

[0006] In existing technology, the anodic oxidation process requires manual operation, or semi-automatic operation using auxiliary equipment. Because the final post-processing stage of the anodizing process requires baking the metal parts, the entire target, including the hanger and the workpiece, reaches very high temperatures during anodic oxidation. This operation, performed by workers operating the equipment at close range, is dangerous and poses a harsh working environment. Therefore, a production line capable of automating this process is needed. Summary of the Invention

[0007] In view of the above-mentioned deficiencies or defects in the prior art, the present invention provides an automated up-and-down target flying system for anodizing metal workpieces, which can automatically fly the target up and down and perform anodizing production on the material without the need for manual operation by an operator.

[0008] In order to achieve the above-mentioned object, the first aspect of the present invention provides an automated production system for anodizing process of metal parts, comprising a material rack for mounting hangers, an AGV trolley for transferring material racks, an upper and lower target flying system and an overhead crane system;

[0009] The top of the hanger is equipped with two hooks, front and rear. The rear hook is hung on the hanging point of the material rack, and the front hook is used to connect the target. The inner side of the front hook is provided with a power strip, and the front hook is provided with a set screw. The set screw presses the power strip against the target, pressing the power strip tightly against the target.

[0010] The AGV transports the material rack to the loading and unloading dock of the upper target system, and takes the material rack away from the loading and unloading dock of the lower target system;

[0011] The upper and lower target systems are divided into an upper target system, located at the feed position of the anodizing production line, and a lower target system, located at the discharge position of the anodizing production line. The upper and lower target systems include tracks arranged in a front-to-back direction, along which are arranged, in sequence, target storage racks, a hanger locking system, and loading and unloading docks, as well as a target transfer system capable of moving along the tracks. The target transfer system can move to the target storage rack to grab a target, then move along the tracks to the loading and unloading dock, exchange hangers with the material racks on the loading and unloading dock, and then transfer and release the target to the target storage rack. The hanger locking system includes a servo system and an electric wrench. The servo system drives the electric wrench to align and tighten / loosen the hanger's set screws.

[0012] The overhead crane system comprises an overhead track and a vehicle moving along the overhead track, wherein the vehicle is capable of grabbing / releasing the flying target.

[0013] In some embodiments,

[0014] The high-altitude track is in a closed loop, and passes through the temporary storage rack of the upper target system, the anodizing production line, the temporary storage rack of the lower target system, and then returns to the temporary storage rack of the upper target system.

[0015] The carrier is provided with an elevator, the execution end of which is provided with a grabbing structure cooperating with the target, and the elevator can carry the target up and down;

[0016] The carrier grabs full targets with hangers from the target storage rack of the upper target system, passes them through the anodizing production line, and releases them to the target storage rack of the lower target system. It also grabs empty targets from the target storage rack of the lower target system and releases them to the target storage rack of the upper target system. In some embodiments, multiple loading and unloading docks are arranged side by side, each including a positioning device and a locking device. The AGV carries the material rack to the loading and unloading dock. The positioning device limits the material rack to the designed position, and the locking device connects and secures the material rack.

[0017] In some embodiments,

[0018] The material rack includes a frame body with a crossbeam on the top. Hanging points are arranged at intervals along the crossbeam, and the hanging points cooperate with the rear hooks of the hanger. When the material rack is parked at the loading and unloading dock, the crossbeam is arranged along the left and right directions.

[0019] In some embodiments, the target includes an upper crossbeam, a copper bar disposed below the upper crossbeam and fixedly disposed parallel to the crossbeam, and hanging points disposed at intervals along the copper bar, the hanging points cooperating with a front hook of the hanger;

[0020] Both ends of the upper crossbeam are provided with a first connecting structure, and the carrier of the overhead crane system cooperates with the first connecting structure to grab / release the flying target, and the electrical contact of the carrier contacts the copper busbar and makes the copper busbar electrified;

[0021] An elastic material contact piece is provided on the inner side of the front hook of the hanger. One end of the contact piece is fixed on the front hook. The tail of the set screw supports the middle of the contact piece. When the set screw is tightened, the contact piece is pushed toward the copper busbar and pressed against the copper busbar.

[0022] The copper busbar has a second connection structure at both ends. The target temporary storage rack includes a plurality of front and rear storage stations. The storage stations include two left and right brackets. The top of the bracket cooperates with the second connection structure to position and fix the target.

[0023] The second connection structure includes a wedge-shaped positioning block, which is wide at the top and narrow at the bottom; the top of the bracket is provided with a slot that matches the wedge-shaped positioning block.

[0024] In some embodiments, the target transfer system includes a frame, a walking mechanism that cooperates with a track is provided at the bottom of the frame, and two left and right lifting modules are provided at the top of the frame. The tops of the lifting modules have V-shaped lifting grooves that cooperate with wedge-shaped positioning blocks on the target.

[0025] In the target loading system, the traveling mechanism drives the target transfer system to move directly below the target temporary storage rack. The V-shaped lifting groove aligns with the wedge-shaped positioning block of the empty target. The lifting modules on both sides move upward, and the V-shaped lifting groove cooperates with the wedge-shaped positioning block to lift the target off the target temporary storage rack. The traveling mechanism moves forward and backward, and in conjunction with the lifting module's up and down movement, it can move the target's copper bar to directly below the front hook of the hanger on the material rack. The lifting module pushes the target upward, and the target's copper bar first snaps into the hanger's front hook, which then drives the hanger upward and away from the temporary storage rack.

[0026] In the target lowering system, the traveling mechanism drives the target to be transferred and moved to the bottom of the target temporary storage rack, the V-shaped lifting groove is aligned with the wedge-shaped positioning block full of targets, the lifting modules on the left and right sides move upward, and the V-shaped lifting groove cooperates with the wedge-shaped positioning block to lift the target and the hanger off the target temporary storage rack; the traveling mechanism moves forward and backward and cooperates with the lifting module to move up and down to move the rear hook of the hanger on the target to the top of the material rack hanging point, the lifting module moves down and the rear hook of the hanger is stuck on the material rack hanging point, the lifting module continues to move down, the hanger remains on the material rack, and the target is separated from the hanger. In some embodiments, the target has an identification code; the bracket has a first barcode scanner for scanning the identification code on the target, and the target transfer system has a second barcode scanner for scanning the identification code on the target; the material rack has an identification code, and the loading and unloading terminal is provided with a third barcode scanner for scanning the identification code of the material rack;

[0027] The track includes two parallel left and right tracks. The left and right sides of the frame are respectively provided with running wheels to cooperate with the track, and the running wheels are connected to the drive motor;

[0028] The lifting module includes a lifting platform, a V-shaped lifting groove is arranged on the lifting platform, and the lifting platform is connected to the frame through a guide rod, which is arranged vertically and is slidably connected to the frame; a pushing assembly is also provided on the frame for pushing the lifting platform up and down, and the pushing assembly includes a screw, a screw nut and a servo motor that cooperate with each other, the top of the screw pushes the lifting platform, the screw nut is rotatably installed on the frame, and the servo motor drives the screw nut to rotate through a transmission mechanism.

[0029] In some embodiments, the hanger locking system includes a frame, a servo system is disposed on the frame, an electric wrench is mounted on an actuator end of the servo system, and the servo system drives the electric wrench to move in vertical, horizontal, and forward and backward directions;

[0030] The servo system includes a lifting beam, two left and right lifting drive mechanisms are provided on the frame, and the lifting drive mechanisms connect the two ends of the lifting beam; horizontal slide rails extending in the left and right directions are provided along the lifting beam, and a support base is provided on the horizontal slide rails, and a horizontal drive mechanism is provided on the lifting beam to drive the support base to move left and right along the horizontal slide rails; the support base is provided with front and rear slide rails, and the wrench mounting platform is provided on the front and rear slide rails, and a front and rear drive mechanism is provided on the support base to drive the wrench mounting platform to move along the front and rear slide rails;

[0031] The electric wrench comprises a servo motor fixed on a wrench mounting platform, and an output shaft of the servo motor is connected to a screw sleeve.

[0032] In some embodiments, a middle portion of the hanger locking system has an escapement door opening, and the profile of the target transfer system is smaller than the escapement door opening; a top portion of the escapement door opening is provided with a lifting beam, and when the target transfer system passes through the escapement door opening, the lifting beam moves upward to a height higher than the target transfer system;

[0033] Multiple support seats are arranged at intervals along the horizontal slide rail. The support seats correspond to the loading and unloading terminals one by one, and the spacing between the support seats is the same as the spacing between the loading and unloading terminals. Electric wrenches are arranged on the support seats.

[0034] A second aspect of the present invention provides an automated production method for anodizing a metal part, comprising the following steps:

[0035] a. Hang the rear hook of the hanger on the material rack, and use the AGV to transfer the material rack to the loading and unloading dock of the upper target system, where the loading and unloading dock positions and fixes the material rack;

[0036] b. The target transfer system of the upper target system grabs the empty target from the target temporary storage rack; then moves along the track to the loading and unloading dock, moves the target and clamps it into the front hook of the hanger;

[0037] c. The servo system of the target system's hanger locking system drives the electric wrench to move, aligning the electric wrench's actuator end with the set screw and tightening it. The set screw presses the electrical connection piece and the target tightly. The servo system then moves the electric wrench away from the target transfer system's moving path.

[0038] d. The target transfer system of the upper target system drives the target and the hanger upward, allowing the rear hook of the hanger to detach from the material rack, so that the hanger can be transferred to the target; the AGV car takes the empty material rack away from the loading and unloading dock of the upper target system, and then repeats step a. The AGV car transfers another batch of material racks with full hangers to the loading and unloading dock of the upper target system;

[0039] e. The target transfer system of the upper target system carries the full target with the hanger to the target temporary storage rack and places the full target on the target temporary storage rack;

[0040] The target transfer system of the upper target system repeats step b and then takes an empty target from the target temporary storage rack;

[0041] f. The overhead crane system's carrier grabs a full target from the target storage rack of the upper target system; then carries the full target and the target hanger through each station of the anodizing production line in sequence; and then places the full target on the target storage rack of the lower target system;

[0042] At the same time, the carrier of the overhead crane system takes the empty target from the target temporary storage rack of the lower target system, then returns to the target temporary storage rack of the upper target system and places the empty target on the target temporary storage rack of the upper target system;

[0043] Repeat step f for the overhead crane system;

[0044] g. The target transfer system of the target unloading system grabs the full targets on the temporary storage rack and moves them along the track to the loading and unloading dock;

[0045] h. The servo system of the hanger locking system of the lower target system drives the electric wrench to move, align the actuator end of the electric wrench with the set screw and loosen it;

[0046] The servo system moves the electric wrench away from the moving path of the target transfer system;

[0047] i. The target transfer system of the lower target system moves the full target to the loading and unloading dock, and places the rear hook of the hanger just above the hanging point of the material rack; then the target transfer system carries the target downward, and the rear hook of the hanger is hung on the material rack, transferring the hanger from the target to the material rack;

[0048] j. The AGV trolley takes away the material racks full of hangers on the loading and unloading dock of the lower target system; then another batch of AGV trolleys transfer the empty material racks to the loading and unloading dock of the lower target system;

[0049] k. The target transfer system of the lower target system carries the empty target to the target temporary storage rack and places the empty target on the target temporary storage rack;

[0050] The target transfer system of the lower target system repeats step g and then takes a full set of targets from the target temporary storage rack.

[0051] Compared with the manual or semi-automatic loading and unloading production methods in the prior art, the technical solution of this application has the following advantages:

[0052] Improved production efficiency: The fully automatic loading and unloading system enables 24-hour uninterrupted production, reduces the intermittent nature of manual operations, and significantly improves production efficiency. The automated system can quickly and accurately complete material loading and unloading tasks, reducing waiting and changeover time, thereby increasing the speed of the entire production line.

[0053] Reduced human errors: Traditional manual operations are prone to errors due to fatigue, negligence, or lack of expertise. The automated system can ensure accurate loading and unloading of materials, reduce human operational errors, and improve product consistency and quality.

[0054] Improved product quality and consistency: The precise control of the automated loading and unloading system helps ensure that the processing flow of each workpiece is consistent, thereby improving the surface quality and appearance consistency of the product and avoiding deviations that may be caused by manual operation.

[0055] Reduced labor costs: Automated systems replace a large number of manual operations, reducing reliance on labor and thus reducing labor costs. Fully automated production lines offer greater economic advantages, especially in areas with tight labor or high labor costs.

[0056] Improved safety: Automated equipment can reduce operators' exposure to hazardous environments such as high temperatures and acid, reducing the risk of work-related injuries and accidents and improving the safety of the production environment.

[0057] Reduced material waste: Automated systems are usually equipped with precise sensors and control systems that can accurately control the input and removal of materials, reducing material waste caused by improper manual operation.

[0058] Strong flexibility and adaptability: Modern fully automated loading and unloading systems are usually highly flexible and can be quickly adjusted according to production needs to adapt to different specifications or types of workpieces and meet the needs of customized production.

[0059] Reduced dependence on highly skilled workers: Automated production lines can reduce dependence on skilled workers, reduce production fluctuations caused by operator turnover, and improve the stability and sustainability of production lines.

[0060] Real-time data monitoring and tracking: Automation systems are usually equipped with intelligent monitoring and data collection functions, which can monitor production status in real time, analyze equipment operating efficiency, perform preventive maintenance, and reduce downtime.

[0061] In summary, the automated loading and unloading system can not only improve production efficiency, but also improve product quality, reduce costs, and improve safety. It is an important step in the modernization and intelligence of anodizing production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 It is a top view of a practical flying target portion of the present invention;

[0063] Figure 2 It is a three-dimensional diagram of the upper and lower target flying system of the present invention;

[0064] Figure 3 This is a three-dimensional diagram of the upper and lower target system from another direction;

[0065] Figure 4 This is a three-dimensional diagram of the upper and lower target system from another direction;

[0066] Figure 5 It is a schematic diagram of the target transfer system in the upper and lower target system;

[0067] Figure 6 This is a schematic diagram of the lifting module in the target transfer system, as well as a schematic diagram of the connection between the target and the hanger;

[0068] Figure 7 It is a three-dimensional diagram of an electric wrench;

[0069] Figure 8 Schematic diagram of the hanger part.

[0070] 1-hanger, 1a-set screw, 1b-rear hook, 1c-front hook, 1d-connector strip;

[0071] 2-Material rack;

[0072] 3-AGV car;

[0073] 4-upper and lower target system;

[0074] 4a-track;

[0075] 4b-Temporary storage rack for target shooting;

[0076] 4c-hanger locking system, 4c1-frame, 4c2-servo system, 4c2a-support base, 4c3-electric wrench, 4c3a-wrench mounting platform, 4c3c-screw socket;

[0077] 4d-target transfer system, 4d2-travel mechanism, 4d3-lifting module, 4d4-V-shaped lifting trough;

[0078] 4e-loading and unloading dock;

[0079] 5-anodizing production line;

[0080] 6-skeet, 6a-copper busbar. DETAILED DESCRIPTION

[0081] The following is a detailed description of the specific embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0082] In the present invention, unless otherwise stated, the directional words used, such as "front" and "back", are based on the direction of production. The forward direction of material production is "front" and the incoming direction of production is "back".

[0083] Special Note: The upper and lower target systems 4 of the present invention comprise two identical systems: an upper target system, located at the feed position of the anodizing production line 5, and a lower target system, located at the discharge position of the anodizing production line 5. The upper and lower target systems are structurally identical, differing only in their installation locations and operating procedures. This description of the structure of the upper and lower target systems 4 focuses on the upper target system, so the "front" and "rear" positional terms used herein refer to the front-rear positional relationship of the upper and lower target systems.

[0084] "Left and right" refer to the left and right sides of the material forward direction in the production process.

[0085] "Up and down" usually refer to the orientation when assembled and used.

[0086] “Inside and outside” refer to the inside and outside relative to the outline of each component itself.

[0087] It should be noted that the terms "first," "second," and so forth, in the present description, claims, and accompanying drawings are used to distinguish similar items and are not necessarily intended to describe a particular order or precedence. It should be understood that such terms are interchangeable where appropriate to facilitate the description of the embodiments of the present invention. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0088] Overall introduction: See the instructions attached Figure 1-8 As shown, the present invention provides an automated production system for anodizing process of metal parts, including a material rack 2 for mounting a hanger 1, an AGV trolley 3 for transferring the material rack 2, an upper and lower target system 4, and an overhead crane system.

[0089] Arranged in production order, it includes the feeding AGV trolley 3, which carries a material rack 2, and the material rack 2 is loaded with a hanger 1; a target loading system; an overhead crane system; a small target 6 system; and an AGV trolley 3 for unloading.

[0090] Hanger 1: Figure 8 As shown, the top of the hanger 1 has two hooks, front and rear. The rear hook 1b is attached to a hanging point on the material rack 2, while the front hook 1c is used to connect to the target 6. A power strip 1d is located inside the front hook 1c. A set screw 1a is installed on the front hook 1c. The set screw 1a presses against the power strip 1d, pressing it against the target 6.

[0091] The frame of the hanger 1 is equipped with a mechanical fixing structure. The design of the hanger 1 should take into account the shape, weight, and position of the workpiece to ensure that the workpiece does not move or collide during the anodizing process, which would affect the treatment effect. Common designs include threaded fixings, snap-fits, or clamping devices.

[0092] AGV car 3: Figure 1 and Figure 3As shown, the AGV 3 transports the material rack 2 to the loading and unloading dock 4e of the upper target system, referred to as the infeed AGV 3, and removes the material rack 2 from the loading and unloading dock 4e of the lower target system, referred to as the outfeed AGV 3. Here, the infeed AGV 3 and the outfeed AGV 3 can be specific, meaning that several AGVs 3 are specifically responsible for transporting material racks 2 with hanging fixtures 1 to the loading and unloading dock 4e of the upper target system and returning empty material racks 2, and the same applies to the outfeed AGV 3. Alternatively, they can be general, meaning that the AGV 3 is a infeed AGV 3 only when it is performing the task of feeding and unloading materials at the loading and unloading dock of the upper target system, and is a outfeed AGV 3 only when it is feeding and unloading materials at the metal material dock of the lower target system. The AGV trolley 3 can be controlled by its own set program to perform specific tasks, or it can be assigned tasks by a central control program. Therefore, the same AGV trolley 3 can be a feeding AGV trolley 3 or a discharging AGV trolley 3.

[0093] Up and down target system 4: Figure 2-5 As shown, the upper and lower target system 4 is an important conversion link of the entire production line. The process of moving the target 6 up and down the rack and then transferring the target 6 to the overhead crane is also the step with the lowest degree of automation in the traditional anodizing production line 5.

[0094] The upper and lower target systems 4 are divided into an upper target system, which is located at the feed position of the anodizing line 5, and a lower target system, which is located at the discharge position of the anodizing line 5. The upper and lower target systems are structurally identical, but are located at different positions on the anodizing line 5 to perform different tasks.

[0095] The target loading and unloading system 4 includes a track 4a arranged in a front-to-back direction, a temporary target storage rack 4b, a hanger locking system 4c, and a loading and unloading dock 4e, arranged sequentially along the track 4a from front to back. The target transfer system 4d is capable of moving along the track 4a. The target transfer system 4d can move to the temporary target storage rack 4b to grab a target 6, then move along the track 4a to the loading and unloading dock 4e, exchange the hanger 1 with the material rack 2 on the loading and unloading dock 4e, and then transfer and release the hanger 1 to the temporary target storage rack 4b. The hanger locking system 4c includes a servo system 4c2 and an electric wrench 4c3. The servo system 4c2 drives the electric wrench 4c3 to align and tighten / loosen the set screw 1a of the hanger 1.

[0096] Overhead Crane System: The overhead crane system is responsible for carrying the target 6, the hanger 1 mounted on it, and the workpiece to various production stations in the anodizing production line 5. The overhead crane system comprises an overhead track and a carrier that moves along the track. The carrier is capable of picking up and releasing the target 6. The overhead crane system does not directly contact the hanger 1 or the workpiece; it only interacts with the target 6.

[0097] To facilitate understanding of the present invention, the specific workflow of the automated production system for anodizing of metal parts of the present invention is described below:

[0098] a. Attach the rear hook 1b of the hanger 1 to the material rack 2. The AGV 3 then transports the material rack 2 to the loading dock 4e of the upper target system. The loading dock 4e positions and secures the material rack 2. The loading AGV 3 repeatedly transports the material rack 2 loaded with hangers 1 from the previous process to the loading dock 4e of the upper target system and then returns the empty material rack 2 to the previous process.

[0099] b. The target transfer system 4d of the upper target system grabs the empty target 6 from the target temporary storage rack 4b, and then moves it along the track 4a to the loading and unloading terminal 4e, and moves the target 6 to the front hook 1c of the hanger 1.

[0100] c. The servo system 4c2 of the upper target system's hanger locking system 4c drives the electric wrench 4c3, aligning the actuator end of the electric wrench 4c3 with the set screw 1a and tightening it. The set screw 1a presses the contact strip 1d against the target 6. The servo system 4c2 then moves the electric wrench 4c3 out of the path of the target transfer system 4d. After completing step b, the upper target system's locking system moves the electric wrench 4c3 to the set screw 1a. After tightening the set screw 1a, the electric wrench 4c3 is moved to a position where it will not obstruct the movement of the target transfer system 4d along the track 4a.

[0101] d. The target transfer system 4d of the upper target system moves the target 6 and the hanger 1 upward, disengaging the rear hook 1b of the hanger 1 from the material rack 2 and transferring the hanger 1 to the target 6. The AGV 3 then removes the empty material racks 2 from the upper target system's loading / unloading dock 4e. Step a is repeated, and the AGV 3 transfers another batch of material racks 2 loaded with hangers 1 to the upper target system's loading / unloading dock 4e.

[0102] e. The target transfer system 4d of the upper target system carries the full target 6 with the hanger 1 to the target temporary storage rack 4b and places the full target 6 on the target temporary storage rack 4b. The target transfer system 4d of the upper target system then repeats step b and removes the empty target 6 from the target temporary storage rack 4b.

[0103] f. The overhead crane system's carrier picks up a full target 6 from the temporary target storage rack 4b of the upper target system. It then carries the full target 6 and the hanger 1 attached to the target 6 through each station of the anodizing production line 5, placing the full target 6 onto the temporary target storage rack 4b of the lower target system. Simultaneously, the overhead crane system's carrier picks up an empty target 6 from the temporary target storage rack 4b of the lower target system, returns to the temporary target storage rack 4b of the upper target system, and places the empty target 6 onto the temporary target storage rack 4b of the upper target system. The overhead crane system then repeats step f.

[0104] g. The target transfer system 4d of the target removal system grabs the full targets 6 on the temporary storage rack and moves them along the track 4a to the loading and unloading dock 4e.

[0105] h. The servo system 4c2 of the lower target system's hanger locking system 4c drives the electric wrench 4c3 to move, aligning the actuator end of the electric wrench 4c3 with the set screw 1a and loosening it. The servo system 4c2 then moves the electric wrench 4c3 away from the moving path of the target transfer system 4d.

[0106] i. The target transfer system 4d of the lower target system moves the loaded target 6 to the loading and unloading dock 4e, positioning the rear hook 1b of the hanger 1 directly above the hanging point of the material rack 2. The target transfer system then lowers the target 6, and the rear hook 1b of the hanger 1 is attached to the material rack 2, transferring the hanger 1 from the target 6 to the material rack 2.

[0107] j. The AGV trolleys 3 take away the material racks 2 full of hangers 1 from the loading and unloading dock 4e of the lower target system, and then another batch of AGV trolleys 3 transfer the empty material racks 2 to the loading and unloading dock 4e of the lower target system.

[0108] k. The target transfer system 4d of the lower target system carries the empty target 6 to the target temporary storage rack 4b and places the empty target 6 on the target temporary storage rack 4b. Then, the target transfer system 4d of the lower target system repeats step g and takes a full target 6 from the target temporary storage rack 4b.

[0109] The following is a detailed introduction to the various subsystems of the entire production system.

[0110] Overhead Crane System: The overhead crane system consists of an overhead track and a carrier. The overhead track forms a closed loop, passing through the upper target system's temporary target storage rack 4b, the anodizing production line 5, the lower target system's temporary target storage rack 4b, and then returning to the upper target system's temporary target storage rack 4b. The specific layout of the overhead track should be determined based on the actual production site conditions.

[0111] The carrier grabs a full target 6 carrying a hanger 1 from the target temporary storage rack 4b of the upper target system, and releases it to the target temporary storage rack 4b of the lower target system through the anodizing production line 5. It also grabs an empty target 6 from the target temporary storage rack 4b of the lower target system and releases it to the target temporary storage rack 4b of the upper target system.

[0112] An elevator is provided on the carrier. The execution end of the elevator is installed with a grabbing structure that cooperates with the target 6, and the elevator can carry the target 6 up and down. The liftable part of the elevator is provided with a grabbing mechanism, which can grab and release the target 6. The grabbing mechanism can be designed in many ways, for example, it can be a movable clamp-type mechanism, and the clamping part of the jaws close to the target 6 controls the clamping of the jaws of the clamp-type mechanism. Electromagnets can also be used to fix ferromagnetic materials that can be attracted by electromagnets on the target 6, such as ordinary steel plates or stainless steel materials. When the lifting part of the elevator is close to the target 6, the electromagnet can be started to attract and fix the target 6.

[0113] Material rack 2 and hanger 1: The material rack 2 includes a frame body. The top of the frame body is provided with a crossbeam. Hanging points are arranged at intervals along the crossbeam. The hanging point cooperates with the rear hook 1b of the hanger 1, and the hanging point cooperates with the rear hook 1b of the hanger 1. When the material rack 2 is parked at the loading and unloading dock 4e, the crossbeam is arranged along the left and right directions. The top of the hanger 1 is provided with two front and rear hooks. Among them, the rear hook 1b is hung on the hanging point of the material rack 2, and the front hook 1c is used to connect the flying target 6. A power connection plate 1d is provided on the inner side of the front hook 1c. A fastening screw 1a is provided on the front hook 1c. The fastening screw 1a presses against the power connection plate 1d, pressing the power connection plate 1d tightly onto the flying target 6.

[0114] The frame of the hanger 1 is equipped with a mechanical fixing structure. The design of the hanger 1 should take into account the shape, weight, and position of the workpiece to ensure that the workpiece does not move or collide during the anodizing process, which would affect the treatment effect. Common designs include threaded fixings, snap-on fasteners, or clamping devices. The top of the hanger 1 has a hook that bends downward into a hook shape. There are two hooks: the rear hook 1b is used to connect to the material rack 2, and the front hook 1c is used to connect to the target 6.

[0115] During the anodizing production process, the workpiece needs to be energized. Since the overhead crane system does not directly contact the workpiece, the current needs to be carried by the overhead crane system and conducted to the workpiece via the flying target 6 and the hanger 1. Among them, the flying target 6 and the overhead crane part have a dedicated power supply system to maintain stable power supply, and the workpiece is clamped and fixed on the hanger 1, so it can also maintain stable power supply. Since the hanger 1 is only hooked on the flying target 6, it is easy to cause unstable power supply. Therefore, a conductive contact component, namely a power connection plate 1d, is provided on the front hook 1c of the present invention, as well as a fixing screw 1a that cooperates with the power connection plate 1d to lock the front hook 1c of the hanger 1 on the copper bus 6a. The fixing screw 1a pushes the power connection plate 1d inward, pressing the power connection plate 1d against the copper bus 6a, maintaining stable power supply from the copper bus 6a to the hanger 1, and preventing electric sparks from shaking the hanger 1. The other set screw 1a cooperates with the contact plate 1d to improve the stability of the hanger 1 on the target 6, reduce the shaking of the hanger 1, and also prevent the workpiece from falling off the hanger 1. Preferably, a contact plate 1d made of elastic material is provided on the inner side of the front hook 1c of the hanger 1. One end of the contact plate 1d is fixed to the front hook 1c. The tail of the set screw 1a supports the middle of the contact plate 1d. Tightening the set screw 1a pushes the contact plate 1d toward the copper busbar 6a and causes the contact plate 1d to press against the copper busbar 6a.

[0116] Target 6: Target 6 comprises an upper crossbeam, a copper bar 6a positioned below and fixed parallel to the upper crossbeam, and hanging points spaced along copper bar 6a, which engage with the front hook 1c of the hanger 1. Copper bar 6a serves as a hanging point for hanger 1 and also supplies power to the hanger 1. Due to the operating environment of target 6, copper bar 6a is typically made of copper. The upper crossbeam of target 6 is the primary load-bearing structure, and several connecting rods are positioned along the upper crossbeam. The bottoms of these connecting rods connect to copper bar 6a to prevent deformation.

[0117] The upper crossbeam has first connecting structures at both ends. The overhead crane system's carrier cooperates with the first connecting structures to grasp and release the target 6. The carrier's electrical contacts contact the copper bar 6a, energizing it. The first connecting mechanism is determined by the crane's grasping method. For example, as previously mentioned, if the crane uses an electromagnet to grasp the target 6, the first connecting structure will be used with a ferromagnetic plate. If the crane uses a clamp-type structure, the first connecting structure on the target 6 will be used with a through-hole or groove for the clamp to grasp.

[0118] The copper busbar 6a has a second connecting structure at each end. The target storage rack 4b includes multiple front and rear storage stations, each of which includes two left and right brackets. The tops of the brackets cooperate with the second connecting structure to position and secure the target 6. The second connecting structure includes a wedge-shaped positioning block that is wide at the top and narrow at the bottom.

[0119] Upper and lower target system 4: The upper target system and the lower target system have the same structure. The structural features of the upper and lower target system 4 are introduced below using the upper target system as an example.

[0120] The upper and lower target system 4 includes the following subsystems: a track 4a, a target temporary storage rack 4b, a hanger locking system 4c, a loading and unloading dock 4e, and a target transfer system 4d.

[0121] Multiple loading and unloading docks 4e are arranged side by side. Each dock 4e includes a positioning device and a locking device. The AGV 3, carrying the material rack 2, moves to the loading and unloading dock 4e. The positioning device holds the rack 2 in the designated position, and the locking device connects and secures the rack 2. The locking device can be an electromagnet that directly attracts the rack 2, or a pneumatically driven pin with a hole in the rack 2 that mates with the pin. The locking device only needs to be able to stably secure the rack 2 to the loading and unloading dock 4e.

[0122] Track 4a: Track 4a is arranged in the front-to-back direction and includes two parallel left and right tracks. The target transfer system 4d will move on the track 4a to improve the accuracy.

[0123] The target storage rack 4b is a rack for temporarily placing targets 6. The top is open for the overhead crane system to grab and place targets 6. There is an aisle in the middle of the target storage rack 4b for the target transfer system 4d to pass through. The left and right tracks 4a are both located in the middle aisle.

[0124] Target transfer system 4d: Figure 4 and Figure 5 As shown, the target transfer system 4d includes a frame. A running mechanism 4d2 is provided at the bottom of the frame, which cooperates with the track 4a. The track 4a includes two left and right tracks, so the running system also includes two left and right tracks. The corresponding running system has two sets of running wheels on the left and right sides, which bear the weight of the entire target transfer system 4d. Simultaneously, a rack is provided along the track 4a, and a gear structure is provided on the frame that meshes with the rack. The gear is connected to a drive motor that drives the target transfer system 4d forward and backward along the track 4a. Running wheels are provided on the left and right sides of the frame, respectively, to cooperate with the track 4a, and the running wheels are connected to the drive motor.

[0125] Two lifting modules 4d3 are set on the top of the frame. The lifting module 4d3 includes a lifting platform, and a V-shaped lifting groove 4d4 is set on the lifting platform. The function of the lifting module 4d3 is to move the V-shaped lifting groove 4d4 up and down. The V-shaped lifting groove 4d4 is used to lift the target 6. On the one hand, the lifting module 4d3 can move upward from the target storage rack 4b to remove the target 6, and on the other hand, it can leave the target 6 on the target storage rack 4b when the target storage rack 4b moves downward; on the other hand, at the loading and unloading dock 4e, the lifting module 4d3 can push the target 6 upward to transfer the hanger 1 from the material rack 2 to the target 6, and on the other hand, the lifting module 4d3 can drive the target 6 downward to transfer the hanger 1 from the target 6 to the material rack 2.

[0126] The lifting module 4d3 needs to be able to precisely control its lifting height. Therefore, the lifting module 4d3 can be in the form of an electric push rod, or a screw combined with a servo motor. Specifically, the lifting platform is connected to the frame through a guide rod, which is vertically arranged and slidably connected to the frame. The frame is also provided with a push assembly to push the lifting platform up and down. The push assembly includes a screw, a screw nut and a servo motor that cooperate with each other. The top of the screw pushes the lifting platform, and the screw nut is rotatably mounted on the frame. The servo motor drives the screw nut to rotate through a transmission mechanism.

[0127] In the target-loading system, the traveling mechanism 4d2 drives the target transfer system 4d to move directly below the target temporary storage rack 4b. The V-shaped lifting grooves 4d4 align with the wedge-shaped positioning blocks of the empty target 6. The lifting modules 4d3 on both sides move upward, and the V-shaped lifting grooves 4d4 cooperate with the wedge-shaped positioning blocks to lift the target 6 off the target temporary storage rack 4b. There are many ways to position the target transfer system 4d and the target 6. For example, positioning holes can be provided on the target 6, and the lifting module 4d3 of the target transfer system 4d is equipped with a positioning cone that cooperates with the positioning hole. When the positioning cone is inserted into the positioning hole of the target 6, the target 6 is positioned. The positioning cone is set at the top of the lifting module 4d3, with the tip of the positioning cone facing upward.

[0128] The forward and backward movement of the traveling mechanism 4d2, in conjunction with the up and down movement of the lifting module 4d3, moves the copper bar 6a of the target 6 to just below the front hook 1c of the hanger 1 on the material rack 2. The lifting module 4d3 pushes the target 6 upward, and the copper bar 6a of the target 6 first snaps into the front hook 1c of the hanger 1, which then drives the hanger 1 upward and away from the temporary storage rack.

[0129] The lower target system operates in a similar manner to the upper target system, differing only in its operational steps. In the lower target system, the traveling mechanism 4d2 drives the target 6 to move directly below the temporary target storage rack 4b. The V-shaped lifting grooves 4d4 align with the wedge-shaped positioning blocks filled with targets 6. The lifting modules 4d3 on the left and right sides move upward, and the V-shaped lifting grooves 4d4 cooperate with the wedge-shaped positioning blocks to lift the target 6 and its hanger 1 off the temporary target storage rack 4b. The traveling mechanism 4d2 moves forward and backward, coordinating with the lifting module 4d3's up and down movement to move the rear hook 1b of the hanger 1 on the target 6 directly above the hanging point on the material rack 2. The lifting module 4d3 descends, causing the rear hook 1b of the hanger 1 to engage the hanging point on the material rack 2. The lifting module 4d3 then continues its downward movement, leaving the hanger 1 on the material rack 2, and the target 6 is detached from the hanger 1.

[0130] Hanger locking system 4c: The function of the hanger locking system 4c is to tighten or loosen the set screw 1a on the hanger 1.

[0131] The hanger locking system 4c consists of a frame 4c1, with a servo system 4c2 mounted on it. An electric wrench 4c3 is mounted on the actuator end of the servo system 4c2. The servo system 4c2 drives the electric wrench 4c3 in translational motion, up and down, left and right, and forward and backward. The frame 4c1 is a metal frame. It only needs to be able to stably mount the servo system 4c2. Furthermore, the frame must avoid the movement path of the target transfer system 4d and the loading and unloading path of the AGV 3. The servo system 4c2 has three degrees of freedom in translation: up and down, left and right, and forward and backward.

[0132] like Figure 3 As shown in FIG, the servo system 4c2 includes a lifting beam. A frame 4c1 is provided with two left and right lifting drive mechanisms, each connected to the ends of the lifting beam. Horizontal slide rails extending left and right are provided along the lifting beam. A support base 4c2a is provided on the horizontal slide rails. A horizontal drive mechanism is provided on the lifting beam to drive the support base 4c2a to move left and right along the horizontal slide rails. The support base 4c2a has front and rear slide rails, and a wrench mounting platform 4c3a is provided on the front and rear slide rails. The support base 4c2a is provided with front and rear drive mechanisms to drive the wrench mounting platform 4c3a to move along the front and rear slide rails.

[0133] The specific lifting drive mechanism can be in the form of an electric push rod or a lead screw, but since the entire servo system 4c2 needs to be lifted and lowered quickly to avoid the target transfer system 4d, Figure 6 As shown, the lifting drive mechanism includes a rack vertically fixed on the frame, a lifting motor is provided on the lifting beam, and the lifting motor is connected to a gear meshed with the rack, thereby driving the lifting beam to move up and down.

[0134] The horizontal drive mechanism needs to drive multiple support seats 4c2a to slide left and right at the same time. If a gear rack form of a lifting drive mechanism is adopted, each support seat 4c2a needs to be provided with a set of motors. Although it is also possible to realize the left and right servo functions, the structure is relatively complicated. Preferably, the horizontal drive mechanism transmission belt is a toothed belt. The horizontal drive structure includes a horizontal drive motor, a drive pulley and a guide wheel. Guide wheels are set at both ends of the lifting beam, and the transmission belt passes around the guide wheels and is set parallel to the horizontal slide rail. The support seats 4c2a are arranged at intervals along the horizontal slide rail, and the support seats 4c2a are all fixed to the transmission belt. The transmission belt is annular, and the other side of the transmission belt cooperates with the drive pulley.

[0135] The front and rear driving mechanisms adopt a driving cylinder, which is fixed on the mounting platform and drives the wrench mounting platform 4c3a to move.

[0136] like Figure 7 As shown, the electric wrench 4c3 includes a servo motor fixed on a wrench mounting platform 4c3a. The output shaft of the servo motor is connected to a screw sleeve 4c3c.

[0137] The center of the hanger locking system 4c has a clearance hole, and the target transfer system 4d is smaller than the clearance hole. The top of the clearance hole is a lifting beam. When the target transfer system 4d passes through the clearance hole, the lifting beam moves upward to a height higher than the target transfer system 4d.

[0138] Multiple support blocks 4c2a are spaced apart along the horizontal rails. Each support block 4c2a corresponds to a loading / unloading dock 4e, and the spacing between the support blocks 4c2a is the same as the spacing between the loading / unloading dock 4e. Each support block 4c2a is equipped with an electric wrench 4c3.

[0139] To facilitate program control, the target 6 is provided with an identification code. A first code scanner is provided on the bracket to scan the identification code on the target 6. The target transfer system 4d has a second code scanner to scan the identification code on the target 6. A third code scanner is provided on the loading and unloading dock 4e to scan the identification code on the material rack 2.

[0140] At the same time, the present application also proposes an automated production method for anodizing a metal part, which is applied to the automated production system for anodizing a metal part provided in the present application, and includes the following steps:

[0141] a. Hang the rear hook 1b of the hanger 1 on the material rack 2, and use the AGV trolley 3 to transfer the material rack 2 to the loading and unloading terminal 4e of the upper target system. The loading and unloading terminal 4e positions and fixes the material rack 2.

[0142] Hanging the rear hook 1b of the hanger 1 on the material rack 2 is a production preparation operation and is performed in the previous production process. Specifically, the hanger 1 can be hung on the material rack 2 by traditional manual operation, or a robot can complete this work. The AGV trolley 3 drives to the bottom of the material rack 2 and locks the material rack 2; then, the program controls the AGV trolley 3 to carry the material rack 2 to the loading and unloading dock 4e of the upper target system. The loading and unloading dock 4e will lock the material rack 2, and the AGV trolley 3 will disengage from the material rack 2 and then drive away. Alternatively, referring to step d, the AGV trolley 3 waits for the upper target system to remove the hanger 1 from the material rack 2 before carrying the material rack 2 away.

[0143] b. The target transfer system 4d of the upper target system grabs the empty target 6 from the target temporary storage rack 4b, and then moves along the track 4a to the loading and unloading terminal 4e, moving the target 6 and clamping it into the front hook 1c of the hanger 1.

[0144] After the target transfer system 4d removes the target 6, it moves toward the unloading dock 4e (backward) while simultaneously moving the copper bar 6a of the target 6 up and down to a position slightly below the front hook 1c. When the target transfer system 4d moves upward again, the copper bar 6a of the target 6 is inserted into the front hook 1c.

[0145] c. The servo system 4c2 of the hanger locking system 4c of the upper target system drives the electric wrench 4c3 to move, aligning the actuator end of the electric wrench 4c3 with the set screw 1a and tightening it. The set screw 1a presses the electrical connection piece 1d and the target 6 tightly.

[0146] When the target transfer system 4d drives the target 6 to be inserted from the bottom of the front hook 1c to the front hook 1c, the servo system 4c2 of the locking system carries the electric wrench 4c3 to align with the set screw 1a of the first hanger 1 on the material rack 2, and then the electric wrench 4c3 cooperates with the set screw 1a to tighten the set screw 1a, and then tightens the multiple hangers 1 on the material rack 2 in turn.

[0147] After all the set screws 1a are tightened, the servo system 4c2 then takes the electric wrench 4c3 away from the moving path of the target transfer system 4d, thereby avoiding the target transfer system 4d and the hanger locking system 4c in step e.

[0148] d. The target transfer system 4d of the upper target system moves the target 6 and the hanger 1 upward, disengaging the rear hook 1b of the hanger 1 from the material rack 2 and transferring the hanger 1 to the target 6. The hanger 1 is already locked to the copper bar 6a of the target 6. When the target 6 moves upward, the hanger 1 moves with it, and the rear hook 1b of the hanger 1 disengages from the hanger 1.

[0149] The AGV 3 then removes the empty racks 2 from the loading / unloading dock 4e of the upper target system and repeats step a. The AGV 3 transfers another batch of racks 2 loaded with hangers 1 to the loading / unloading dock 4e of the upper target system. The AGV 3 repeatedly transports racks 2 loaded with hangers 1 to the loading / unloading dock 4e of the upper target system and removes the empty racks 2.

[0150] e. The target transfer system 4d of the upper target system carries the full target 6, attached to the hanger 1, to the target storage rack 4b and places the full target 6 on the target storage rack 4b. Specifically, as the target transfer system 4d moves toward the target storage rack 4b (moves forward), the lifting mechanism simultaneously drives the target 6 upward. After the target 6 reaches directly above the target storage rack 4b, it descends and places the target 6 on the target storage rack 4b.

[0151] Then the target transfer system 4d of the upper target system repeats step b and takes out an empty target 6 from the target temporary storage rack 4b.

[0152] f. The overhead crane system's carrier grabs a full target 6 from the target temporary storage rack 4b of the upper target system; then carries the full target 6 and the hanger 1 on the target 6 through each station of the anodizing production line 5 in sequence; and then places the full target 6 on the target temporary storage rack 4b of the lower target system;

[0153] At the same time, the carrier of the overhead crane system takes the empty target 6 from the target temporary storage rack 4b of the lower target system, returns to the target temporary storage rack 4b of the upper target system, and places the empty target 6 on the target temporary storage rack 4b of the upper target system;

[0154] The overhead crane system then repeats step f.

[0155] The following describes the work steps after anodizing.

[0156] g. The target transfer system 4d of the target removal system grabs the full targets 6 on the temporary storage rack and moves them along the track 4a to the loading and unloading dock 4e.

[0157] h. The servo system 4c2 of the hanger locking system 4c of the lower target system drives the electric wrench 4c3 to move, aligning the actuator end of the electric wrench 4c3 with the set screw 1a and loosening it;

[0158] The servo system 4c2 then takes the electric wrench 4c3 away from the moving path of the target transfer system 4d.

[0159] i. The target transfer system 4d of the lower target system moves the full target 6 to the loading and unloading dock 4e, and places the rear hook 1b of the hanger 1 just above the hanging point of the material rack 2; then the target 6 transfer system carries the target 6 downward, and the rear hook 1b of the hanger 1 is hung on the material rack 2, transferring the hanger 1 from the target 6 to the material rack 2.

[0160] j. The AGV trolleys 3 take away the material racks 2 full of hangers 1 from the loading and unloading dock 4e of the lower target system; then another batch of AGV trolleys 3 transfer the empty material racks 2 to the loading and unloading dock 4e of the lower target system.

[0161] k. The target transfer system 4d of the lower target system carries the empty target 6 to the target temporary storage rack 4b and places the empty target 6 on the target temporary storage rack 4b.

[0162] Then the target transfer system 4d of the lower target system repeats step g and takes out a full set of targets 6 from the target temporary storage rack 4b.

[0163] Compared with the manual or semi-automatic loading and unloading production methods in the prior art, the automated loading and unloading system and method for anodizing metal workpieces of the present application has the following advantages:

[0164] Improved production efficiency: The fully automatic loading and unloading system enables 24-hour uninterrupted production, reduces the intermittent nature of manual operations, and significantly improves production efficiency. The automated system can quickly and accurately complete material loading and unloading tasks, reducing waiting and changeover time, thereby increasing the speed of the entire production line.

[0165] Reduced human errors: Traditional manual operations are prone to errors due to fatigue, negligence, or lack of expertise. The automated system can ensure accurate loading and unloading of materials, reduce human operational errors, and improve product consistency and quality.

[0166] Improved product quality and consistency: The precise control of the automated loading and unloading system helps ensure that the processing flow of each workpiece is consistent, thereby improving the surface quality and appearance consistency of the product and avoiding deviations that may be caused by manual operation.

[0167] Reduced labor costs: Automated systems replace a large number of manual operations, reducing reliance on labor and thus reducing labor costs. Fully automated production lines offer greater economic advantages, especially in areas with tight labor or high labor costs.

[0168] Improved safety: Automated equipment can reduce operators' exposure to hazardous environments such as high temperatures and acid, reducing the risk of work-related injuries and accidents and improving the safety of the production environment.

[0169] Reduced material waste: Automated systems are usually equipped with precise sensors and control systems that can accurately control the input and removal of materials, reducing material waste caused by improper manual operation.

[0170] Strong flexibility and adaptability: Modern fully automated loading and unloading systems are usually highly flexible and can be quickly adjusted according to production needs to adapt to different specifications or types of workpieces and meet the needs of customized production.

[0171] Reduced dependence on highly skilled workers: Automated production lines can reduce dependence on skilled workers, reduce production fluctuations caused by operator turnover, and improve the stability and sustainability of production lines.

[0172] Real-time data monitoring and tracking: Automation systems are usually equipped with intelligent monitoring and data collection functions, which can monitor production status in real time, analyze equipment operating efficiency, perform preventive maintenance, and reduce downtime.

[0173] In summary, the automated loading and unloading system can not only improve production efficiency, but also improve product quality, reduce costs, and improve safety. It is an important step in the modernization and intelligence of anodizing production lines.

[0174] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automated production system for anodizing of metal parts, characterized in that: It includes a material rack (2) for mounting a hanger (1), an AGV trolley (3) for transferring the material rack (2), an upper and lower target system (4), and an overhead crane system; The top of the hanger (1) is provided with two front and rear hooks, wherein the rear hook (1b) is hung on a hanging point of a material rack (2), and the front hook (1c) is used to connect to a flying target (6); a power connection piece (1d) is provided on the inner side of the front hook (1c), and a set screw (1a) is provided on the front hook (1c), and the set screw (1a) presses against the power connection piece (1d) to press the power connection piece (1d) onto the flying target (6); The AGV trolley (3) transports the material rack (2) to the loading and unloading dock (4e) of the upper target system, and takes the material rack (2) away from the loading and unloading dock (4e) of the lower target system; The upper and lower target systems (4) are divided into an upper target system arranged at the feeding position of the anodizing production line (5) and a lower target system arranged at the discharging position of the anodizing production line (5); the upper and lower target systems (4) include a track (4a) arranged in the front-to-back direction, a target temporary storage rack (4b), a hanger locking system (4c) and a loading and unloading dock (4e) arranged in sequence along the track (4a) from front to back, and a target transfer system (4d) capable of moving along the track (4a); the target transfer system (4 d) capable of moving to the target storage rack (4b) to grab the target (6), then moving along the track (4a) to the loading and unloading dock (4e), exchanging the hanger (1) with the material rack (2) on the loading and unloading dock (4e), and then transferring and releasing it to the target storage rack (4b); the hanger locking system (4c) includes a servo system (4c2) and an electric wrench (4c3), and the servo system (4c2) drives the electric wrench (4c3) to align and tighten / loosen the set screw (1a) of the hanger (1); The overhead crane system includes an overhead track and a vehicle moving along the overhead track, the vehicle being capable of grabbing / releasing the target (6); the overhead track is in a closed loop, and the overhead track sequentially passes through the target temporary storage rack (4b) of the upper target system, the anodizing production line (5), the target temporary storage rack (4b) of the lower target system, and then returns to the target temporary storage rack (4b) of the upper target system; An elevator is provided on the carrier, and a gripping structure cooperating with the target (6) is installed at the execution end of the elevator, so that the elevator can carry the target (6) to move up and down; The carrier grabs a full target (6) carrying a hanger (1) from the target temporary storage rack (4b) of the upper target system, releases it to the target temporary storage rack (4b) of the lower target system via the anodizing production line (5); and grabs an empty target (6) from the target temporary storage rack (4b) of the lower target system, and releases it to the target temporary storage rack (4b) of the upper target system.

2. The automated production system for anodizing of metal parts according to claim 1, characterized in that: The loading and unloading docks (4e) are arranged in parallel on the left and right sides. The loading and unloading docks (4e) include a positioning device and a locking device. The AGV trolley (3) carries the material rack (2) and moves to the loading and unloading dock (4e). The positioning device limits the material rack (2) to a designed position, and the locking device connects and fixes the material rack (2).

3. The automated production system for anodizing of metal parts according to claim 1, characterized in that: The material rack (2) includes a frame body, a crossbeam on the top of the frame body, and hanging points arranged at intervals along the crossbeam, the hanging points cooperating with the rear hooks (1b) of the hanger (1); when the material rack (2) is parked at the loading and unloading dock (4e), the crossbeam is arranged along the left and right directions.

4. The automated production system for anodizing of metal parts according to claim 1, characterized in that: The target (6) includes an upper crossbeam, a copper bar (6a) arranged below the upper crossbeam and fixedly arranged parallel to the crossbeam, and hanging points arranged at intervals along the copper bar (6a), the hanging points cooperating with the front hooks (1c) of the hanger (1); Both ends of the upper crossbeam are provided with a first connecting structure, the carrier of the overhead crane system cooperates with the first connecting structure to grab / release the flying target (6), and the carrier's electrical contact contacts the copper busbar (6a) and makes the copper busbar (6a) electrified; An electrical connection piece (1d) made of elastic material is provided on the inner side of the front hook (1c) of the hanger (1), one end of the electrical connection piece (1d) is fixed to the front hook (1c), the tail of the set screw (1a) supports the middle of the electrical connection piece (1d), and tightening the set screw (1a) pushes the electrical connection piece (1d) toward the copper busbar (6a) and makes the electrical connection piece (1d) press against the copper busbar (6a); The copper busbar (6a) has a second connecting structure at both ends. The target temporary storage rack (4b) includes a plurality of front and rear storage stations. The storage stations include two left and right brackets. The tops of the brackets cooperate with the second connecting structure to position and fix the target (6). The second connection structure includes a wedge-shaped positioning block, which is wide at the top and narrow at the bottom; the top of the bracket is provided with a slot that matches the wedge-shaped positioning block.

5. The automated production system for anodizing of metal parts according to claim 4, characterized in that: The target transfer system (4d) includes a frame, a walking mechanism (4d2) that cooperates with the track (4a) is provided at the bottom of the frame, and two left and right lifting modules (4d3) are provided at the top of the frame. The top of the lifting module (4d3) has a V-shaped lifting groove (4d4) that cooperates with the wedge-shaped positioning block on the target (6); In the target-loading system, the traveling mechanism (4d2) drives the target transfer system (4d) to move to the right below the target temporary storage rack (4b), the V-shaped lifting groove (4d4) is aligned with the wedge-shaped positioning block of the empty target (6), the lifting modules (4d3) on the left and right sides move upward, and the V-shaped lifting groove (4d4) cooperates with the wedge-shaped positioning block to lift the target (6) away from the target temporary storage rack (4b); the traveling mechanism (4d2) moves forward and backward and cooperates with the lifting module (4d3) to move up and down to move the copper bar (6a) of the target (6) to the right below the front hook (1c) of the hanger (1) on the material rack (2), the lifting module (4d3) pushes the target (6) upward, the copper bar (6a) of the target (6) is first stuck in the front hook (1c) of the hanger (1), and then drives the hanger (1) upward to leave the temporary storage rack; In the lower target system, the walking mechanism (4d2) drives the target (6) to be transferred and moved to the right below the target temporary storage rack (4b), the V-shaped lifting groove (4d4) is aligned with the wedge-shaped positioning block full of targets (6), the lifting modules (4d3) on the left and right sides move upward, and the V-shaped lifting groove (4d4) cooperates with the wedge-shaped positioning block to lift the target (6) and the hanger (1) away from the target temporary storage rack (4b); the walking mechanism (4d2) moves forward and backward and cooperates with the lifting module (4d3) to move up and down to move the rear hook (1b) of the hanger (1) on the target (6) to the right above the hanging point of the material rack (2), the lifting module (4d3) moves downward, and the rear hook (1b) of the hanger (1) is clamped on the hanging point of the material rack (2), the lifting module (4d3) continues to move downward, the hanger (1) remains on the material rack (2), and the target (6) is separated from the hanger (1).

6. The automated production system for anodizing of metal parts according to claim 5, characterized in that: The target (6) has an identification code; the bracket has a first code scanner for scanning the identification code on the target (6); the target transfer system (4d) has a second code scanner for scanning the identification code on the target (6); the material rack (2) has an identification code, and the loading and unloading terminal (4e) is provided with a third code scanner for scanning the identification code of the material rack (2); The track (4a) comprises two parallel left and right tracks, and running wheels are respectively provided on the left and right sides of the frame body to cooperate with the track (4a), and the running wheels are connected to the drive motor; The lifting module (4d3) includes a lifting platform, a V-shaped lifting groove (4d4) is arranged on the lifting platform, and the lifting platform is connected to the frame through a guide rod, which is arranged vertically and is slidably connected to the frame; a pushing assembly is also provided on the frame for pushing the lifting platform up and down, and the pushing assembly includes a screw, a screw nut and a servo motor that cooperate with each other, the top of the screw pushes the lifting platform, the screw nut is rotatably installed on the frame, and the servo motor drives the screw nut to rotate through a transmission mechanism.

7. The automated production system for anodizing of metal parts according to claim 5, characterized in that: The hanger locking system (4c) includes a frame (4c1), a servo system (4c2) is arranged on the frame (4c1), an electric wrench (4c3) is installed at the execution end of the servo system (4c2), and the servo system (4c2) drives the electric wrench (4c3) to move in the up-down, left-right, and front-back directions; The servo system (4c2) includes a lifting beam, and two left and right lifting drive mechanisms are provided on the frame (4c1), and the lifting drive mechanisms are connected to the two ends of the lifting beam; a horizontal slide rail extending in the left and right directions is provided along the lifting beam, and a support seat (4c2a) is provided on the horizontal slide rail; a horizontal drive mechanism is provided on the lifting beam to drive the support seat (4c2a) to move left and right along the horizontal slide rail; the support seat (4c2a) is provided with front and rear slide rails, and the wrench installation platform (4c3a) is provided on the front and rear slide rails, and a front and rear drive mechanism is provided on the support seat (4c2a) to drive the wrench installation platform (4c3a) to move along the front and rear slide rails; The electric wrench (4c3) comprises a servo motor fixed on a wrench mounting platform (4c3a), and an output shaft of the servo motor is connected to a screw sleeve (4c3c).

8. The automated production system for anodizing of metal parts according to claim 7, characterized in that: The middle portion of the hanger locking system (4c) has an avoidance door opening, and the outline of the target transfer system (4d) is smaller than the avoidance door opening; the top of the avoidance door opening is a lifting beam, and when the target transfer system (4d) passes through the avoidance door opening, the lifting beam moves upward to a height higher than the target transfer system (4d); A plurality of support seats (4c2a) are arranged at intervals along the horizontal slide rail, the support seats (4c2a) correspond to the loading and unloading docks (4e) one by one, and the spacing between the support seats (4c2a) is the same as the spacing between the loading and unloading docks (4e); and electric wrenches (4c3) are arranged on each of the support seats (4c2a).

9. An automated production method for anodizing of metal parts, characterized in that: The method is applied to the automated production system for anodizing of metal parts provided in any one of claims 1 to 8, comprising the following steps: a. Hang the rear hook (1b) of the hanger (1) on the material rack (2), and use the AGV (3) to transfer the material rack (2) to the loading and unloading dock (4e) of the upper target system, and the loading and unloading dock (4e) positions and fixes the material rack (2); b. The target transfer system (4d) of the upper target system grabs an empty target (6) from the target temporary storage rack (4b); then moves along the track (4a) to the loading and unloading dock (4e), moves the target (6) and clamps the target (6) into the front hook (1c) of the hanger (1); c. The servo system (4c2) of the hanger locking system (4c) of the upper target system drives the electric wrench (4c3) to move, aligns the actuator end of the electric wrench (4c3) with the set screw (1a) and tightens it, and the set screw (1a) presses the electrical connection piece (1d) and the target (6) together; the servo system (4c2) takes the electric wrench (4c3) away from the moving path of the target transfer system (4d); d. The target transfer system (4d) of the upper target system drives the target (6) and the hanger (1) to move upward, so that the rear hook (1b) of the hanger (1) is separated from the material rack (2) to transfer the hanger (1) to the target (6); the AGV trolley (3) takes the empty material rack (2) away from the loading and unloading dock (4e) of the upper target system, and then repeats step a. The AGV trolley (3) transfers another batch of material racks (2) full of hangers (1) to the loading and unloading dock (4e) of the upper target system; e. The target transfer system (4d) of the upper target system carries the full target (6) with the hanger (1) to the target temporary storage rack (4b), and places the full target (6) on the target temporary storage rack (4b); The target transfer system (4d) of the upper target system repeats step b and then takes an empty target (6) from the target temporary storage rack (4b); f. The carrier of the overhead crane system grabs the full target (6) from the target temporary storage rack (4b) of the upper target system; then carries the full target (6) and the hanger (1) on the target (6) through each station of the anodizing production line (5) in sequence; and then places the full target (6) on the target temporary storage rack (4b) of the lower target system; At the same time, the carrier of the overhead crane system takes an empty target (6) from the target temporary storage rack (4b) of the lower target system, returns to the target temporary storage rack (4b) of the upper target system, and places the empty target (6) on the target temporary storage rack (4b) of the upper target system; Repeat step f for the overhead crane system; g. The target transfer system (4d) of the lower target system grabs the full target (6) on the temporary storage rack and moves it along the track (4a) to the loading and unloading dock (4e); h. The servo system (4c2) of the hanger locking system (4c) of the lower target system drives the electric wrench (4c3) to move, aligns the actuator end of the electric wrench (4c3) with the set screw (1a) and loosens it; The servo system (4c2) moves the electric wrench (4c3) away from the moving path of the target transfer system (4d); i. The target transfer system (4d) of the lower target system moves the full target (6) to the loading and unloading dock (4e), and places the rear hook (1b) of the hanger (1) directly above the hanging point of the material rack (2); then the target (6) transfer system carries the target (6) downward, and the rear hook (1b) of the hanger (1) is hung on the material rack (2), transferring the hanger (1) from the target (6) to the material rack (2); j. The AGV trolley (3) takes away the material rack (2) full of hangers (1) from the loading and unloading dock (4e) of the lower target system; and another batch of AGV trolleys (3) transfer the empty material rack (2) to the loading and unloading dock (4e) of the lower target system; k. The target transfer system (4d) of the lower target system carries the empty target (6) to the target temporary storage rack (4b), and places the empty target (6) on the target temporary storage rack (4b); The target transfer system (4d) of the lower target system repeats step g and takes out a full target (6) from the target temporary storage rack (4b).

Images