A wheel hub automated production line

Abstract

The present invention discloses an automated wheel hub production line, comprising a rim grinding and slag removal transmission production line, a rim flaring device, a rim weld inspection device, a rim forming device, a rim and spoke welding production line, a hub shaping device, a hub air tightness testing device, a hub air hole drilling device, and a hub and spoke shaping production line; it also comprises a Class I robotic arm mechanism, several Class II robotic arm mechanisms, and several Class III robotic arm mechanisms. The method for producing and processing a wheel hub on the automated wheel hub production line comprises the following steps: grinding and removing weld slag from the weld seam on the rim, flaring and forming the rim on the flaring device, weld inspection, rim forming, reshaping the wheel hub, air tightness inspection, opening a nozzle hole in the wheel hub, and milling and shaping the spokes on the wheel hub to obtain a finished wheel hub. The above structure enables the automated production of wheels with complex processes, greatly improving production efficiency while also improving the efficiency and benefits of product production.

Description

Technical Field

[0001] The invention belongs to the technical field of wheel hub production, and in particular relates to an automated wheel hub production line. Background Art

[0002] The wheel hub is the core component of a tire. The vehicle's rubber tire is mounted on the wheel hub, which is used to bear the weight of the entire vehicle. With the popularization of vehicles in the industry, the production technology of wheel hubs has also been widely developed.

[0003] For example, Chinese patent publication number CN112589079B discloses a continuous wheel hub cooling system based on automobile wheel hub production, which discloses the cooling method during the wheel hub production process. Specifically, the cooling system includes a cooling trough, a guide rail assembly, a rail car and other structures to solve the problems of high labor intensity and low work efficiency in the existing automobile wheel hub cooling process.

[0004] In the actual production process, wheel hub production begins with the rim and spokes, and then goes through a complex process of processing to become the finished wheel hub. Therefore, the production process involves complex steps such as material loading, unloading, testing, and transportation. Due to the lack of intelligence in existing production technology, the frequent loading, unloading, testing, and transportation of semi-finished workpieces consumes a huge amount of manpower and material resources during the production process. At the same time, the production efficiency of the entire production line is very low. Furthermore, wheel hubs are heavy and their various components are highly irregular, further leading to operational difficulties in the production process. However, due to technical bottlenecks in the production process, manufacturers still rely too much on manpower to produce wheel hub products that require this complex process. Summary of the Invention

[0005] Based on the above background, the purpose of the present invention is to provide a wheel hub automated production line.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions:

[0007] A wheel hub automated production line includes a rim grinding and welding slag removal transmission production line, a rim flaring device, a rim weld detection device, a rim forming device, a rim and spoke welding production line, a hub shaping device, a hub air tightness testing device, a hub air hole drilling device, and a hub and spoke shaping production line; the wheel hub automated production line also includes a Class I robotic arm mechanism, several Class II robotic arm mechanisms, and several Class III robotic arm mechanisms; a method for producing and processing wheel hubs on the wheel hub automated production line includes the following steps:

[0008] (1) The rim is ground from the feeding end of the rim conveying production line to remove the welding slag from the weld seam of the rim and then transferred to the discharging end. Then, the Class I robotic arm mechanism grabs the rim and loads the rim onto the rim expanding equipment for expansion forming. (2) The Class I robotic arm mechanism grabs the rim again and then the Class I robotic arm mechanism loads the rim onto the rim weld inspection equipment for weld inspection of the rim. (3) The Class II robotic arm mechanism grabs the rim from the rim weld inspection equipment and loads it onto the rim forming equipment for rim expansion forming. Forming processing; (4) Class II robotic arm mechanism grabs the rim formed on the rim forming equipment and loads it to the rim spoke welding production line for welding to form a hub blank; (5) Class II robotic arm mechanism grabs the hub blank and reshapes it; (6) Class II robotic arm mechanism grabs the hub and performs air tightness testing. The qualified hub is grabbed and loaded onto the hub air hole opening equipment to open the air nozzle hole on the hub; (7) Class III robotic arm mechanism grabs the opened hub blank and loads it to the hub spoke shaping production line to obtain the finished hub.

[0009] Preferably, the rim grinding and de-welding slag transmission production line includes a first transmission mechanism, a grinding and de-welding slag mechanism, and a Class I robotic arm mechanism; the grinding and de-welding slag mechanism includes a workbench, on which is assembled and connected a pushing assembly for pushing the rim onto the first transmission mechanism; the grinding and de-welding slag mechanism also includes a grinding and de-welding slag assembly, which includes a grinding cylinder installed at the bottom of the workbench, on which are assembled and connected grinding rods for respectively grinding the weld seams on the inner and outer walls of the rim; the grinding and de-welding slag assembly also includes a plurality of push rod structures. The pushing assembly includes a pushing cylinder installed at the top of the workbench, on whose piston rod is fixedly connected a pushing seat mounting seat, on which a pushing platform is fixedly assembled and connected; an arc-shaped limiting notch is provided on the pushing platform. The push rod structure includes a pair of push rods for abutting against positions on both sides of the outer wall of the rim.

[0010] Preferably, the first transmission mechanism comprises a belt conveyor, which comprises a frame, with belt drums mounted at both ends of the frame, and a transmission belt mounted between the belt drums; the transmission belt is integrally formed with elastic ribs spaced apart on both sides; and a plurality of guide rod structures for guiding the wheel rim are fixedly mounted on each side of the frame. A baffle is fixedly connected to the discharge end of the frame to block the wheel rim; the Class I robotic arm mechanism comprises a robotic arm, on which is mounted a grabbing tool for grabbing the wheel rim; the grabbing tool comprises a tool mounting frame mounted on the robotic arm, on which is mounted a grabbing cylinder; a grabbing plate is fixedly connected to the piston rod of the grabbing cylinder; and grabbing pressure seats are fixedly connected to the side walls of the tool mounting frame and the grabbing plate facing each other.

[0011] Preferably, the rim and spoke welding production line includes a second transmission mechanism for transmitting the spokes, a Class II robotic arm mechanism, and a Class III robotic arm mechanism; the rim and spoke welding production line also includes a welding mechanism; the Class II robotic arm mechanism includes a Class II robotic arm mechanism body, a rim grabbing structure for grabbing the rim is installed on the Class II robotic arm mechanism body, the rim grabbing structure includes a grabbing bracket installed on the Class II robotic arm mechanism body, a cylinder is installed on the grabbing bracket, a first grabbing arm is fixedly connected to the piston rod of the cylinder; a second grabbing arm cooperating with the first grabbing arm is fixedly connected to the grabbing bracket; a grabbing arm rod for grabbing the rim is respectively integrally formed on the first grabbing arm and the second grabbing arm; a plurality of sliding rods are fixedly connected between the first grabbing arm and the second grabbing arm, and the sliding rods are slidably connected to the grabbing bracket; the front end of the sliding rod is fixedly connected to a blocking end seat for blocking the first grabbing arm;

[0012] Preferably, the second transmission mechanism includes a conveyor, which includes a conveyor frame and a transmission belt installed on the conveyor; a spoke top structure that cooperates with a Class III robotic arm mechanism is installed at the discharge end of the conveyor; the spoke top structure includes a top clamping plate for clamping the spokes; a bayonet is provided on the top clamping plate; a top cylinder is installed at the bottom of the top clamping plate; the bayonet is V-shaped; a guide frame for guiding the spokes is installed at the feed end of the conveyor frame; top cylinders are installed on both sides of the bottom of the top clamping plate, and a cylinder bracket is installed at the bottom of the top cylinder, which is installed on the conveyor frame.

[0013] Preferably, the welding mechanism includes a welding table; the welding table is equipped with a welding frame; the welding assembly is installed on the welding frame, the welding assembly includes a lifting cylinder, a lifting rod is installed on the lifting cylinder, and a welding gun structure is installed at the bottom of the lifting rod; the welding gun structure includes a welding gun mounting seat fixedly installed at the bottom position of the lifting rod, and a plurality of welding gun parts are fixedly connected to the welding gun mounting seat; the welding gun part includes a welding gun fixing seat fixedly connected to the welding gun mounting seat, a welding gun holder is fixedly connected to the side wall of the welding gun fixing seat, and a welding gun head is fixedly connected to the welding gun holder; the welding gun mounting seat is fixedly connected to the side wall of the welding gun fixing seat. The bottom of the welding machine is fixedly connected to a spark block. The welding frame includes an upper frame, the bottom of which is fixedly connected to several frame rods, which are fixedly connected to the welding table. A lifting cylinder is mounted on the top of the upper frame. The piston rod of the lifting cylinder is fixedly connected to the lifting seat. The top of the lifting seat is fixedly connected to several sliding guide rods. The spark block is provided with several limit openings for the welding gun head. An adjustment short rod is slidably connected to the welding gun mounting seat, which is fixedly connected to the welding gun mounting seat. A welding slag blowing mechanism is fixedly connected to the frame rods. A clamp is fixedly connected to the top of the welding table.

[0014] Preferably, the hub and spoke shaping production line includes several lathes for turning and milling the spokes on the hub; the hub and spoke shaping production line also includes a third belt conveyor and a fourth belt conveyor for transmitting the hub; several Class III robotic arm mechanisms for grabbing the hub are arranged between the third belt conveyor and the fourth belt conveyor, and the three are arranged adjacent to each other in sequence; several hub lifting mechanisms are installed on the fourth belt conveyor; they include hub pressing cylinders installed on both sides, and their piston rods are fixedly connected to a pressing seat that presses against the waist of the hub; the hub lifting mechanism also includes a lifting cylinder; the third belt conveyor and the fourth belt conveyor both include belt conveyor frames; the piston rod of the lifting cylinder is fixedly installed on the hub pressing cylinder.

[0015] Preferably, the Class III robotic arm mechanism includes a Class III robotic arm mechanism body, on which a spoke grabbing structure is installed; the spoke grabbing structure includes a grabbing mounting frame installed on the Class III robotic arm mechanism body, on which a grabbing cylinder is installed, and the grabbing cylinder has a number of cylinder piston claws that cooperate with each other; the cylinder piston claws are respectively fixedly connected to pressure heads that squeeze on the spokes.

[0016] The present invention has the following beneficial effects: 1. By improving the robotic arm and the transportation equipment of the assembly line, it is possible to grasp, process and inspect rims and spokes with high irregularities in a stable and streamlined manner, with a high degree of automation and a streamlined work process, without the need for manual intervention. During the entire process, many defects such as material jamming and conveyor shutdown will not occur. 2. By improving the rim weld grinding device, it is possible to grind the welds on the inner and outer walls of the rim simultaneously, and effectively solve the technical defect that the welds on the inner side of the rim are difficult to grind due to their hidden location. 3. By improving the Class II robotic arm mechanism and the Class III robotic arm mechanism, it is possible to grasp rims and spokes with high irregularities during welding, and cooperate with the welding mechanism to greatly improve the welding efficiency. At the same time, by improving the production line for transmitting spokes, it is possible to use the upper clamping plate and the V-shaped clamping mouth to lift the spokes, keeping the spokes in a drooping position, which is convenient for accurate grasping. 4. By improving the welding mechanism, multiple welding guns can be welded simultaneously, ensuring that each spoke arm is welded simultaneously and the connection strength with the rim after welding is consistent, greatly improving welding quality and effectively enhancing the welding quality of the hub. 5. During the spoke shaping process, the third and fourth belt conveyors and the Class III robotic arm mechanism work together to smoothly and quickly load, grasp, mill, unload, and transport the hub. This method not only significantly improves production efficiency but also greatly avoids the many technical drawbacks associated with manual loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 Schematic diagram of the overall structure of a rim grinding and slag removal transmission production line according to an embodiment of the present invention; Figure 3 This is one of the structural schematic diagrams of the grinding and removing welding slag mechanism in an embodiment of the present invention; Figure 4 This is a second structural diagram of the grinding and removing welding slag mechanism in an embodiment of the present invention; Figure 5 This is the third structural diagram of the grinding and removing welding slag mechanism in an embodiment of the present invention; Figure 6 Schematic diagram of the structure of the first transmission mechanism in an embodiment of the present invention; Figure 7 This is one of the structural diagrams of the material grabbing tooling in an embodiment of the present invention; Figure 8 This is the second structural diagram of the material grabbing tooling in the embodiment of the present invention; Figure 9 This is a schematic diagram of the overall structure of a welding production line in an embodiment of the present invention; Figure 10 This is one of the schematic diagrams of the rim grabbing structure in an embodiment of the present invention; Figure 11 This is the second schematic diagram of the rim grabbing structure in an embodiment of the present invention; Figure 12 This is one of the schematic diagrams of the spoke grabbing structure in an embodiment of the present invention; Figure 13 This is the second schematic diagram of the spoke grabbing structure in an embodiment of the present invention; Figure 14 Schematic diagram of the structure of the spoke top structure and the top clamping plate in an embodiment of the present invention; Figure 15 Schematic diagram of the overall structure of the welding mechanism in an embodiment of the present invention; Figure 16 Schematic diagram of the structure of the welding gun in an embodiment of the present invention; Figure 17 A schematic structural diagram of a welding gun assembly according to an embodiment of the present invention; Figure 18 Schematic diagram of the structure of the welding slag blowing pipe in an embodiment of the present invention; Figure 19 Schematic diagram of the structure of the limiting opening in an embodiment of the present invention; Figure 20 Schematic diagram of the overall structure of a hub and spoke shaping production line according to an embodiment of the present invention; Figure 21 This is one of the structural schematic diagrams of the wheel hub lifting mechanism in an embodiment of the present invention; Figure 22 This is a second structural diagram of the wheel hub lifting mechanism in an embodiment of the present invention; Figure 23 It is a schematic diagram of the structure of the rim after it is opened by the opening device and a schematic diagram of the structure of the rim after it is processed by the rim forming device in an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] Example 1

[0020] like Figure 1 As shown, an automated wheel hub production line includes a rim grinding and slag removal transmission line 1, a rim flaring device 501, a rim weld inspection device 502, a rim forming device 503, a rim and spoke welding line 2, a hub shaping device 504, a hub airtightness testing device 505, a hub air hole drilling device 506, and a hub and spoke shaping line. The automated wheel hub production line also includes a Class I robotic arm mechanism 13, several Class II robotic arm mechanisms 23, and several Class III robotic arm mechanisms 25. The Class I robotic arm mechanism 13 is used to grasp one end of the rim, the Class II robotic arm mechanism 23 is used to clamp and grasp both sidewalls of the rim, and the Class III robotic arm mechanism 25 is used to grasp the spokes.

[0021] The method for producing and processing a wheel hub on an automated wheel hub production line includes the following steps:

[0022] (1) After the rim is ground from the feed end of the rim grinding and slag removal conveying production line 1 to remove the slag from the weld seam on the rim A, the rim is transferred to the discharge end. Subsequently, the type I robotic arm mechanism 13 grabs the rim A (disposed at the discharge end of the rim A grinding and slag removal conveying production line 1), and loads the rim A onto the rim expanding device 501 (the rim expanding device 501 is a conventional expanding device disclosed in the prior art for squeezing the waist of the rim A. After squeezing the waist, the mouth of the rim A is enlarged) for expansion forming. After expansion, a hub waistline a (such as Figure 23 shown);

[0023] (2) The Class I robotic arm mechanism 13 grabs the rim A again, with the grabbing position being on the opposite side of the weld of the rim A. The Class I robotic arm mechanism 13 then loads the rim A onto the rim weld inspection device 502 (the rim A weld inspection device 502 is a conventional weld inspection device disclosed in the prior art, including an infrared probe for detecting welds, for detecting welds such as a tight type weld). The weld of the rim A is inspected by the weld inspection device to determine whether the weld meets the standards.

[0024] (3) A type II robotic arm mechanism (a type II robotic arm mechanism 23 is arranged at the side of the rim forming device 503, marked as type II robotic arm mechanism 23 No. 1) grabs the rim A from the rim weld inspection device 502 and loads it onto the rim forming device 503 (the rim forming device 503 is a conventional device for correcting the shape of the rim A disclosed in the prior art) to form the rim A. After the forming process, a notch structure b (such as Figure 23 shown);

[0025] (4) The type II robotic arm mechanism 23 grabs the rim A formed on the rim forming equipment 503 and loads it onto the rim-spoke welding production line 2. Then, the type III robotic arm mechanism 25 (a type III robotic arm mechanism 25 is arranged at the side of the welding mechanism described below, marked as type III robotic arm mechanism 25 No. 1) grabs the spoke at the discharge end of the rim-spoke welding production line 2, grabs it onto the rim-spoke welding production line 2, and puts it into the rim A for welding to form a hub blank.

[0026] (5) The type II robotic arm mechanism 23 grabs the hub blank from the rim and spoke welding production line 2 and loads it onto the hub shaping device 504 to reshape the hub (a type II robotic arm mechanism 23 is arranged on the side of the hub shaping device 504, marked as type II robotic arm mechanism 23 No. 2);

[0027] (6) The Class II robotic arm mechanism 23 grabs the wheel hub from the wheel hub shaping device 504 (another Class II robotic arm mechanism 23 is arranged at the side of the wheel hub shaping device 504, marked as Class II robotic arm mechanism 23 No. 3) and sends it to the wheel hub air tightness testing device 505 to test the air tightness of the wheel hub (the wheel hub air tightness testing device 505 is a conventional device for testing the air tightness of the wheel hub disclosed in the prior art. The wheel hub is temporarily sealed by the rubber tooling on the device to simulate the tire installation state. After the tire is filled with air, it is tested by the pressure gauge of the test). For the wheel hub that meets the air tightness requirements, the Class II robotic arm mechanism 23 (another Class II robotic arm mechanism 23 is arranged at the side of the wheel hub air tightness testing device 505, marked as Class II robotic arm mechanism 23 No. 4) is used to grab the wheel hub again and send it to the wheel hub air hole drilling device 506 to drill an air nozzle hole on the wheel hub (the drilling device 506 is a conventional drilling device for drilling air nozzle holes on existing wheel hubs).

[0028] (7) The Class III robotic arm mechanism 25 grabs the hub blank with the hole opened in step (6), and the grabbing position is on the spoke. After grabbing, the material is loaded onto the hub and spoke shaping production line (a number of Class III robotic arm mechanisms 25 are arranged on the hub and spoke shaping production line, marked as the nth Class III robotic arm mechanism 25, and the number is set according to the actual processing situation). The spokes on the hub are milled and shaped by a lathe to obtain a finished hub.

[0029] On the entire production line, a Class I robotic arm mechanism 13 grabs rim A, whose weld seams have been polished, and then expands and inspects the weld seams, completing the first stage and ensuring the quality (welding) of rim A. Then, the first through third Class II robotic arm mechanisms 23 and the first Class III robotic arm mechanism 25 respectively shape the qualified rim A, and then weld it, forming the hub blank. The Class II robotic arm mechanism 23 then shapes, forms, tests the airtightness, and creates the valve holes, completing the second stage. Subsequently, the nth Class III robotic arm mechanism 25 shapes the spokes on the hub blank. Milling the spokes into a specific shape using a CNC lathe completes the finished product.

[0030] Example 2 Wheel Rim Grinding and Weld Slag Removal Transmission Device

[0031] like Figure 1-23 As shown, the rim grinding and de-slag transmission device comprises a first transmission mechanism 12, a grinding and de-slag mechanism 11 located at the infeed end of the first transmission mechanism 12, and a Class I robotic arm mechanism 13 located at the outfeed end of the first transmission mechanism 12. During operation, the grinding and de-slag mechanism 11 rapidly removes the slag from the weld seams on the inner and outer walls of the rim A, then rapidly pushes the material to the first transmission mechanism 12 for transmission to the outfeed end. The material is then quickly grasped by the Class I robotic arm mechanism 13 and loaded onto the workbench of subsequent equipment, such as testing equipment.

[0032] The specific structure of the grinding and de-welding slag mechanism 11 is as follows: the grinding and de-welding slag mechanism 11 includes a workbench 111, on which is assembled and connected a pushing assembly for pushing the rim A onto the first transmission mechanism 12. Specifically, the pushing assembly includes a pushing cylinder 112 mounted on top of the workbench 111 (the cylinder barrel of the pushing cylinder 112 is fixedly mounted on the top of the workbench 111 via a cylinder barrel base), the piston rod of the pushing cylinder 112 is fixedly connected to a pushing seat mounting base 1121, and the pushing seat mounting base 1121 is fixedly assembled and connected to a pushing platform 113 for pushing the rim A (the two are fastened by bolts).

[0033] The pusher 113 also features an arcuate retaining notch shaped to match the shape of rim A. This retaining notch ensures that rim A remains locked within the arcuate retaining notch during pushing, enhancing push stability. The aforementioned weld slag removal mechanism 11 also includes a weld slag removal assembly. Specifically, this assembly simultaneously removes weld slag from the weld seams on the inner and outer walls of rim A.

[0034] Specifically, the grinding and welding slag removal assembly includes a grinding cylinder 116 installed at the bottom of the workbench 111 (the cylinder barrel of the grinding cylinder 116 is fixedly installed at the bottom of the workbench 111 through a cylinder barrel mounting seat in the same manner as the existing method), and the grinding cylinder 116 is equipped with a grinding rod 115 for grinding the weld positions on the inner and outer walls of the rim A respectively.

[0035] Specifically, a grinding rod mounting seat 1161 is fixedly connected to the piston rod of the grinding cylinder 116, and the grinding rods 115 are fixedly mounted on both sides of the top of the grinding rod mounting seat 1161. The spacing between the grinding rods 115 corresponds to the thickness of the rim A. Correspondingly, a sliding opening is provided on the workbench 111 to cooperate with the grinding rods 115, and the grinding rods 115 are slidably connected to the sliding opening. During operation, driven by the grinding cylinder 116, the grinding rods 115 come into contact with the weld, and the rapidly descending grinding rods 115 quickly remove the weld slag from the weld along the upper end to the lower end of the weld. This method achieves simultaneous grinding of the welds on the inner and outer walls of the rim A, and effectively solves the technical defect that the weld on the inner side of the rim A is difficult to grind due to its hidden location. Double-sided simultaneous grinding greatly improves grinding efficiency. The grinding rod 115 is a conventional grinding rod disclosed in the prior art that can grind metal materials, and has a rough structure for rubbing welding slag.

[0036] To ensure that rim A does not move during grinding and that the grinding rod 115 is polished evenly along the weld seam, the aforementioned grinding and slag removal assembly also includes a plurality of abutment rods for contacting the outer wall of rim A. Specifically, the abutment rods include a pair of abutment rods for contacting the outer wall of rim A on either side. The abutment rods on both sides of the outer wall of rim A keep rim A stationary during grinding, significantly improving grinding accuracy.

[0037] Example 3

[0038] like Figure 1-23As shown, this embodiment builds on the structure of Example 2. The first transmission mechanism 12 includes a belt conveyor, which is a conventional transmission belt conveyor disclosed in the prior art. Its main structure is the same as that of existing belt conveyors, including a frame 121 with belt drums mounted on both ends. A transmission belt 122 is installed between the belt drums (similar to existing belt conveyors, motors mounted on the belt drums drive the belt drums to rotate, thereby transporting the material). To maintain the rim A in a supported manner during operation and facilitate correcting the rim A's posture during transmission, the transmission belt 122 is integrally formed with elastic ribs 1221 spaced apart on both sides (the bottom of the rim A spans between the elastic ribs 1221). During transmission by the transmission belt 122, the rim A is supported between the tops of the elastic ribs 1221. Because the elastic ribs 1221 are made of elastic material, they move synchronously with the belt. Because the rim A is supported on the elastic ribs 1221, the support surface is small, making it easier to move during correction. Specifically, a plurality of guide rod structures for guiding the rim A are fixedly installed on the front and rear sides of the frame 121 (the guide rod structures are symmetrically distributed in the front and rear directions), and the transmission posture of the rim A is corrected through the guide rod structures.

[0039] Specifically, if the posture of the rim A approaches the front side, at this time, the moving rim A contacts the guide rod structure 124 on the front side, and the rim A is cast under the push of the guide rod structure 124. In this way, the posture correction of the rim A is facilitated, and preparations are made for the subsequent precise material grabbing by the robotic arm. Specifically, the guide rod structure 124 includes a pair of guide rod frames 1241 fixedly mounted on the frame 121 (the bottom of the guide rod frame 1241 is fixedly connected to a base platform, and the base platform is fixedly connected to the frame 121), and a pair of horizontal guide rods 1242 spaced apart are respectively installed between the guide rod frames 1241. Specifically, the two ends of the horizontal guide rod 1242 are respectively fixedly connected to a guide rod seat, and the guide rod seat is respectively fixedly connected to a longitudinal connecting rod, and the guide rod frame 1241 is fixedly connected to a guide rod seat for mounting the longitudinal connecting rod. During operation, the misaligned rim A contacts the horizontal guide rod 1242. Pushed by the horizontal guide rod 1242, the rim A moves along the elastic rib 1221 and contacts the other horizontal guide rod 1242. The rim A is then corrected under the guidance of the two horizontal guide rods 1242. A baffle 123 is fixedly attached to the discharge end of the frame 121 to prevent the rim A from falling off the conveyor belt 122.

[0040] Example 4

[0041] like Figure 1-23As shown, this embodiment builds on the structure of Example 3. To automatically grasp rim A at the discharge end and further improve the production efficiency of rim A, the Class I robotic arm mechanism 13 includes a robotic arm 131 (wherein, robotic arm 131 is a conventional industrial production robotic arm 131 disclosed in the prior art). To grasp rim A in a suitable manner, a gripping tool 132 for gripping rim A is mounted on the robotic arm 131; the gripping tool 132 corresponds to the shape of rim A.

[0042] Specifically, the material grabbing tooling includes a tooling mounting frame 1321 mounted on the robotic arm 131, and a material grabbing cylinder 1322 is mounted on the tooling mounting frame 1321; a material grabbing plate 1323 is fixedly connected to the piston rod of the material grabbing cylinder 1322 (specifically, a material grabbing plate mounting seat 13221 is fixedly connected to the piston rod of the material grabbing cylinder 1322, and the material grabbing plate 1323 is mounted on the material grabbing plate mounting seat 13221); a material grabbing pressure seat 1324 is fixedly connected to the side walls of the tooling mounting frame 1321 and the material grabbing plate 1323 facing each other.

[0043] The gripping fixture allows one side of rim A to be gripped during the gripping process, while the other side of rim A is where the weld is located. Therefore, after gripping one side, the robotic arm 131 loads rim A onto the inspection table of the inspection equipment. This gripping method ensures that the weld is fully facing the inspection equipment, such as a camera, on the inspection table. Specifically, during the gripping process, the robotic arm 131 drives the fixture mounting frame 1321 down until rim A fits into the gap between the gripping plate 1323 and the end of the fixture mounting frame 1321. At this time, the gripping cylinder 1322 operates, driving the gripping plate 1323 toward the fixture mounting frame 1321 until the gripping pressure seats 1324 on both sides press against rim A, achieving full and stable gripping of rim A.

[0044] Example 5

[0045] like Figure 1-23As shown, this embodiment, based on the structure of Example 4, discloses a rim and spoke welding production line. Specifically, it includes a Class II robotic arm mechanism 23 for grasping the rim, a second conveyor mechanism for conveying the spokes B, and a Class III robotic arm mechanism 25 located at the discharge end of the second conveyor mechanism for grasping the spokes B. The rim and spoke welding production line also includes a welding mechanism 24. During operation, the Class II robotic arm mechanism 23 first grasps the product and places it onto the welding mechanism 24. The second conveyor mechanism then transfers the spokes B to the discharge end. The Class III robotic arm mechanism 25 then grasps the product and loads the spokes B onto the welding mechanism 24, inserting them into the rim. The welding mechanism 24 then performs welding. To grasp the rim, the Class II robotic arm mechanism 23 includes a Class II robotic arm mechanism body 231 (Class II robotic arm mechanism body 231 is a conventional robotic arm used in existing industrial production). A rim grasping structure 232 for grasping the rim is mounted on the Class II robotic arm mechanism body 231. The rim grabbing structure 232 is used to grab the rim of the cylindrical structure, and after grabbing, the rim is kept flat on the fixture on the welding table.

[0046] Specifically, the rim grabbing structure 232 includes a grabbing bracket 2321 (in the shape of a frame structure, the left end of which is a mounting portion 23211, and the mounting portion 23211 is mounted on the Class II robotic arm mechanism body 231) installed on the grabbing bracket 2321, and a cylinder 2326 is installed on the piston rod of the cylinder 2326, and a first grabbing arm 2323 is fixedly connected to the grabbing bracket 2321; a second grabbing arm 2322 that cooperates with the first grabbing arm 2323 is fixedly connected to the grabbing bracket 2321.

[0047] The first grabbing arm 2323 and the second grabbing arm 2322 have the same shape. Specifically, each of the first grabbing arm 2323 and the second grabbing arm 2322 is integrally formed with a grabbing arm rod 2324 that grips the wheel rim. (The grabbing arm rod 2324 has sufficient extension length to achieve stable grip on the cylindrical wheel rim.) To better grip the wheel rim, an arc-shaped bayonet is provided on the inner sidewall of the grabbing arm rod 2324.

[0048] At the same time, in order to increase the stability of the movement of the first grabbing arm 2323, two spaced-apart sliding rods 2325 are fixedly connected between the first grabbing arm 2323 and the second grabbing arm 2322, and the sliding rods 2325 are slidably connected to the grabbing bracket 2321; the front end of the sliding rod 2325 is fixedly connected to a blocking end seat 23251 for blocking the first grabbing arm 2323 (intended to prevent the first grabbing arm 2323 from detaching).

[0049] During operation, first, the first grabbing arm 2323 on the rim grabbing structure 232 is extended toward the second grabbing arm 2322 to the outside of the rim by the driving force of the Class II robotic arm mechanism body 231. Subsequently, the first grabbing arm 2323 is moved closer to the second grabbing arm 2322 by the driving force of the cylinder 2326. The first grabbing arm 2323 is moved toward the second grabbing arm 2322 to clamp the rim between the grabbing arm rods 2324. Subsequently, the Class II robotic arm mechanism body 231 delivers the grabbed rim to the workbench of the welding equipment. This method can realize the grabbing of rims that are difficult to grasp by robotic arms, and realize the coordination between the Class II robotic arm mechanism body 231 and the Class III robotic arm mechanism body 251 described below. The Class II robotic arm mechanism body 231 and the Class III robotic arm mechanism body 251 described below can also coordinate with the production line, thereby greatly improving the smoothness of production during the production process and ensuring efficient blanking and welding operations.

[0050] Example 6

[0051] like Figure 1-23 As shown, in this embodiment, based on the structure of embodiment 5, the above-mentioned Class III robotic arm mechanism 25 includes a Class III robotic arm mechanism body 251, and a spoke material grabbing structure 252 is installed on the Class III robotic arm mechanism body 251; the spoke material grabbing structure 252 includes a material grabbing mounting frame 2521 installed on the Class III robotic arm mechanism body 251, and a material grabbing cylinder 2522 is installed on the material grabbing mounting frame 2521, and the material grabbing cylinder 2522 has a plurality of cylinder piston claws 2523 that cooperate with each other, and the spoke material is grabbed between the cylinder piston claws.

[0052] Specifically, the gripping cylinder 2522 is a three-claw gripping cylinder 2522 known from prior art, equipped with three circumferentially distributed cylinder piston claws 2523. To enhance the gripping stability of the spokes B, each of the cylinder piston claws 2523 is fixedly connected to a pressure head 25231 that presses against the spokes B. During operation, when the rim is gripped and loaded onto the workbench of the welding mechanism 24, the gripping cylinder 2522 in the spoke gripping structure 252, driven by the Class III manipulator mechanism 251, cooperates with the cylinder piston claws 2523 to grasp the spokes B and lower them horizontally into the rim for welding.

[0053] Example 7

[0054] like Figure 1-23As shown, based on the structure of Example 6, in order to realize the transmission of the spoke B unloaded from the production equipment to the vicinity of the welding mechanism 24 for facilitating unloading by the robot arm, the second transmission mechanism includes a conveyor 26, wherein the conveyor 26 is a conventional belt conveyor disclosed in the prior art, and its main structure includes a conveyor frame 261 and a transmission belt 262 installed on the conveyor; the transmission belt 262 is driven by a belt roller on the conveyor frame 261 (the belt roller is driven by a motor).

[0055] At the same time, guide frames 21 are mounted on the feed end of the conveyor frame 261 to guide the spokes B. Specifically, the guide frames 21 are fixedly mounted on either side of the conveyor frame 261. The spokes B are placed between the guide frames and moved toward the discharge end by the conveyor belt 262. To ensure that the spokes B at the discharge end can be grasped by the Class III robotic arm mechanism 25, a spoke top structure 22 is installed at the discharge end of the conveyor to cooperate with the Class III robotic arm mechanism 25.

[0056] That is, the spoke B is corrected and lifted by the spoke lifting structure 22. Specifically, the spoke lifting structure 22 includes a lifting plate 221 for holding the spoke B. The lifting plate 221 also has a latch 222 (facing the infeed end of the belt). After the spoke B is transported to the outfeed end on the conveyor belt, it snaps into the V-shaped latch 222. Specifically, when the spoke B encounters the V-shaped latch 222, guided by the latch 222, the spoke B snaps into the V-shaped latch 222. During this process, because the spoke B is restrained within the latch 222, the lifting cylinder raises the lifting plate 221, automatically correcting the spoke B, which is restrained within the latch 222, to a vertical position, making it easier for the robotic arm to grasp it.

[0057] Specifically, a lifting cylinder 223 is mounted at the bottom of the lifting plate 221. Specifically, a lifting cylinder 223 is mounted on either side of the bottom of the lifting plate 221. A cylinder bracket 2231 is mounted at the bottom of the lifting cylinder 223, and the cylinder bracket 2231 is mounted on the conveyor frame 261. This structure allows the lifting cylinder 223, the lifting plate 221, and the V-shaped retaining plate 222 to cooperate to lift the irregularly shaped spoke B. During the lifting process, the upper end of the spoke B is blocked at the top of the V-shaped retaining plate 222. As a result, the spoke B is corrected to a vertical position after being lifted, making it easier for the robotic arm to grasp the correctly positioned spoke B.

[0058] Example 8

[0059] like Figure 1-23As shown, this embodiment discloses a welding mechanism 24 based on the structure of embodiment 7, and realizes synchronous welding of multiple spoke arms on the spokes to the inner wall of the rim by improving the welding mechanism 24.

[0060] The specific structure of the welding mechanism 24 is as follows: the welding mechanism 24 includes a welding table 241; in order to facilitate the positioning of the rim, the top of the above-mentioned welding table 241 is fixedly connected to a clamp 244 that limits the release of the rim; the transverse cross-section of the clamp 244 is annular, and the rim is limited to the outside of the clamp after release. The robotic arm grabs the rim and releases it onto the clamp 244 until the rim is inserted and limited on the clamp 244. The above-mentioned welding table 241 is equipped with a welding frame. Specifically, the welding frame includes an upper frame seat 242, and the bottom of the upper frame seat 242 is fixedly connected to a plurality of frame rods 2421 (which serve as a support), and the frame rods 2421 pass through the welding table 241.

[0061] The welding frame is mounted with a welding assembly 243, which includes a lifting cylinder 2433, the barrel of which is fixedly mounted at the top center of the upper frame base 242. Furthermore, a lifting rod 24332 is mounted on the lifting cylinder 2433, and a welding gun structure 2434 is mounted at the bottom of the lifting rod 24332.

[0062] Specifically, the piston rod of the lifting cylinder 2433 is fixedly connected to the lifting seat 24331 (the piston rod of the lifting cylinder 2433 is slidably connected to the upper frame seat 242), and the lifting rod 24332 is fixedly mounted on the bottom of the lifting seat 24331. At the same time, the top of the lifting seat 24331 is fixedly connected to a number of sliding guide rods that are slidably connected to the upper frame seat 242. The sliding guide rods are used to improve stability during the lifting process. At the same time, the above-mentioned welding gun structure 2434 includes a welding gun mounting seat 24344 fixedly mounted at the bottom position of the lifting rod 24332, and a number of welding gun components are fixedly connected to the welding gun mounting seat 24344. During the welding process, each welding gun component is welded to the connection between a spoke arm on the wheel spoke and the rim, achieving synchronous welding.

[0063] Specifically, the welding gun assembly includes a welding gun mounting base 24343 fixedly connected to the welding gun mounting base 24344 (the welding gun mounting base 24343 is slidably connected to an adjustment short rod 243432, which is fixedly connected to the welding gun mounting base 24344. This method enables the positions of all welding gun tips 24342 to be adjusted during actual operation by sliding adjustment. According to existing methods, in order to position the welding gun tips after adjustment, the welding gun mounting base 24343 is threadedly connected to a bolt that squeezes and positions the welding gun tips). A welding gun holder 243431 is fixedly connected to the side wall of the welding gun mounting base 24343, and a welding gun tip 24342 is fixedly connected to the welding gun holder 243431. Among them, the welding gun tip 24342 is a welding tip used in conventional welding equipment disclosed in the prior art. Like existing welding tips, the top of the welding tip is electrically connected via a connected wire. During operation, when the spokes and rims are loaded, the entire welding gun structure 2434 is lowered by the drive of the lifting cylinder 2433, and the connection parts of the spoke arms and the rims are welded synchronously through each welding gun head 24342.

[0064] Example 9

[0065] like Figure 1-23 As shown, this embodiment builds on the structure of Example 1. During welding, a large amount of welding sparks fly upward, which can easily cause the wires connected to the welding gun head 24342 to catch fire and damage the equipment. Therefore, a welding spark blocker 24341 is fixedly connected to the bottom of the welding gun mounting base 24344, and the welding gun head 24342 is restrained within the welding spark blocker 24341. During welding, the flying sparks are blocked by the welding spark blocker 24341 and fly downward onto the ground.

[0066] Similarly, to protect the welding gun tip 24342, the spark block 24341 is provided with a plurality of retaining openings 243411 to hold the welding gun tip 24342 in place. These retaining openings 243411 comprise an elliptical through-hole 2434111 formed in the spark block 24341. The outer wall of the spark block 24341 is provided with a sidewall through-hole 2434112 integrally formed with the elliptical through-hole. The welding gun tip 24342 is retained within the elliptical through-hole 2434111. The depth of the retaining openings 243411 ensures protection for the welding gun tip 24342. The bottom of the welding gun tip 24342, with the welding end extending through the bottom of the elliptical through-hole 2434111, is also provided.

[0067] Example 10

[0068] like Figure 1-23As shown, in this embodiment, based on the structure of embodiment 9, a welding slag blowing mechanism is fixedly connected to the frame rod 2421. The welding slag blowing mechanism is used to blow off the welding slag during welding and cool the welding part at the same time. Specifically, the welding slag blowing mechanism includes a plurality of welding slag blowing pipes 245, and the welding slag blowing pipes 245 include a straight pipe portion, and the straight pipe portion is integrally formed with a bent pipe portion, and the bent pipe portion faces the welding table 241. According to the existing welding air blowing and cooling method, the above-mentioned welding slag blowing pipe 245 is connected to the external pump air pipe. The external pump air pipe is connected to the air source, so that during welding, a cooling air flow such as nitrogen is blown onto the welded workpiece to remove the welding slag and reduce the temperature.

[0069] Example 11 Wheel hub and spoke shaping production line

[0070] like Figure 1-23 As shown, this embodiment, based on the structure of Example 10, discloses a hub and spoke shaping production line, specifically including several lathes for turning and milling the spokes on the hub. The lathes are conventional CNC lathes disclosed in the prior art, and can be used to mill the spokes on the hub into a specific shape during operation to form the finished hub. Specifically, the hub and spoke shaping production line also includes a third belt conveyor 3 for conveying the hub blank C and a fourth belt conveyor 4 that cooperates with the third belt conveyor 3. Specifically, several Class III robotic arm mechanisms for grasping the hub are arranged between the third belt conveyor 3 and the fourth belt conveyor 4; the lathe is arranged in front of the third belt conveyor 3, and the fourth belt conveyor 4 is arranged behind the third belt conveyor 3; the fourth belt conveyor 4 is separated from the lathe by the third belt conveyor 3.

[0071] During operation, the hub blank C is loaded and transported via the fourth belt conveyor 4, then grabbed by a Class III robotic arm mechanism and loaded into a lathe. Subsequently, after the lathe completes processing of the spokes on the hub blank C, the finished hub is unloaded again by the robotic arm and transported via the fourth belt conveyor 4. Similar to the structure of existing belt conveyors, the third and fourth belt conveyors 3 and 4 each include a belt conveyor frame, with belt rollers mounted at each end of the frame (driven by a motor, as in the existing method), and a transmission belt installed between the belt rollers.

[0072] Example 12

[0073] like Figure 1-23As shown, this embodiment builds on the structure of Example 11. In order to cooperate with the robotic arm to grasp the wheel hub, several wheel hub lifting mechanisms 41 are installed on the fourth belt conveyor 4. Specifically, after the wheel hub blank C is loaded onto the loading end of the fourth belt conveyor 4, the wheel hub blank C is transported on the fourth belt conveyor 4. When the wheel hub blank C is transported to the location of the wheel hub lifting mechanism 41, the wheel hub is clamped and lifted by the wheel hub lifting mechanism 41. Subsequently, the robotic arm grabs the lifted wheel hub blank C. Specifically, the wheel hub lifting mechanism 41 includes wheel hub pressing cylinders 411 respectively installed on both sides of the fourth belt conveyor 4. The piston rod of the wheel hub pressing cylinder 411 is fixedly connected to a pressing seat 412 that presses against the waist of the wheel hub blank C.

[0074] Specifically, to stably clamp the hub blank C, the pressing seat 412 is provided with an arc-shaped waist opening based on the shape of the hub blank C. Under the action of the hub pressing cylinders 411 on both sides, the pressing seat 412 is clamped on both sides of the waist of the hub blank C and maintains a stable clamping. Simultaneously, the hub lifting mechanism 41 also includes a lifting cylinder 414 for lifting the hub pressing cylinders 411.

[0075] Specifically, the bottom of the wheel hub pressing cylinder 411 is mounted with a cylinder base 143, while the bottom of the lifting cylinder 414 is mounted with a cylinder mount, which is fixed to the conveyor frame. The piston rod of the lifting cylinder 414 is fixedly mounted to the bottom center of the cylinder base 143. Furthermore, to enhance the stability of the wheel hub blank C during lifting, a pair of guide rails 415, spaced apart on either side and slidably connected to the cylinder base 143, are fixedly connected to the top of the cylinder mount.

[0076] During operation, driven by the lifting cylinder 414, the hub pressing cylinder 411, the pressing seat 412, and the hub blank C clamped by the pressing seat 412 are lifted to a certain height, and then the Class III robotic arm mechanism grabs the hub blank C. This method allows the hub blank C to be clamped, locked, and lifted in a highly stable manner, making it convenient to cooperate with the Class III robotic arm mechanism to load the hub blank C into the lathe. During operation, driven by the spoke robotic arm body 251, in the spoke grabbing structure 252, the grabbing cylinder 2522, through the cooperation of the cylinder piston claw 2523, grabs the spoke B, thereby fully grabbing the hub blank C. Because the spoke B is located in the center of the hub blank C and is small in size, it is easier to grab.

[0077] Example 13

[0078] like Figure 1-23As shown, this embodiment is based on the structure of Example 12. According to the existing technology, several infrared sensors 31 for detecting wheel hubs are installed on the frame of the third belt conveyor 3. Among them, the infrared sensors are conventional infrared sensors 31 for detecting materials disclosed in the existing technology. The infrared sensors 31 on the third belt conveyor 3 are used to detect the wheel hubs on the third belt conveyor 3, so as to prevent the robot arm from repeatedly loading the wheel hubs to the same location (i.e., causing the wheel hubs to overlap). Similar to the existing method, during the operation of the robot arm, the wheel hubs are lowered into the area between the infrared sensors 31. In this way, the infrared sensors 31 are used to detect whether there are wheel hubs on the belt conveyor. Similarly, several infrared sensors 31 for detecting wheel hub blanks C are installed on the frame of the fourth belt conveyor 4 to detect whether there are wheel hubs on the fourth belt conveyor 4, which facilitates the robot arm to grab them.

[0079] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples.

Claims

1. A wheel hub automated production line, characterized in that: Including rim grinding and welding slag removal transmission production line, rim flaring equipment, rim weld inspection equipment, rim forming equipment, rim and spoke welding production line, hub shaping equipment, hub air tightness testing equipment, hub air hole drilling equipment and hub and spoke shaping production line; The wheel hub automated production line also includes a Class I robotic arm mechanism, several Class II robotic arm mechanisms, and several Class III robotic arm mechanisms; Among them, the type I robotic arm mechanism is used to grasp one end of the rim, the type II robotic arm mechanism is used to clamp and grasp the double side walls of the rim, and the type III robotic arm mechanism is used to grasp the spokes; The method for producing and processing a wheel hub on the wheel hub automated production line comprises the following steps: (1) After the rim is ground from the feed end of the rim grinding and slag removal production line to remove the weld slag from the weld seam, it is transferred to the discharge end. Subsequently, the Class I robotic arm mechanism grabs the rim and loads the rim onto the rim flaring equipment for flaring. After flaring, a concave waistline is formed on the waist of the rim. (2) The Class I robotic arm mechanism grabs the rim again, with the grabbing position on the opposite side of the rim weld. The Class I robotic arm mechanism then loads the rim onto the rim weld inspection equipment for weld inspection. The weld inspection equipment then checks whether the weld meets the standards. (3) The Class II robotic arm mechanism grabs the rim from the rim weld inspection equipment and loads it onto the rim forming equipment to form the rim; (4) The Class II robotic arm mechanism grabs the rim formed on the rim forming equipment and loads it onto the rim-spoke welding production line. Then, the Class III robotic arm mechanism grabs the spoke at the discharge end of the rim-spoke welding production line and puts it into the rim-spoke welding production line to form a hub blank after welding. The rim and spoke welding production line also includes a welding mechanism; the welding mechanism includes several welding gun heads; Also includes welding spark arrestor; The welding spark block is provided with a plurality of limiting opening structures for limiting the welding gun head; The position limiting opening structure includes an elliptical through-hole portion formed on the welding spark blocker, and a side wall through-hole portion integrally formed on the elliptical through-hole portion is formed on the outer side wall of the welding spark blocker; The welding gun head is limited in the oval through hole portion, (5) The Class II robotic arm mechanism grabs the hub blank from the rim and spoke welding production line and loads it onto the hub shaping equipment to reshape the hub; (6) The Class II robotic arm mechanism grabs the wheel hub from the wheel hub shaping equipment and sends it to the wheel hub air tightness testing equipment to test the wheel hub for air tightness. The wheel hub that passes the air tightness test is grabbed again by the Class II robotic arm mechanism and sent to the wheel hub air hole opening equipment to open the air nozzle hole on the wheel hub; (7) The Class III robotic arm mechanism grabs the hub blank that has been drilled in step (6) and the grabbing position is on the spoke. After grabbing, the material is loaded onto the hub and spoke shaping production line. The spokes on the hub are milled and shaped by a lathe to obtain a finished hub.

2. The wheel hub automated production line according to claim 1, characterized in that: The wheel rim grinding and de-slag transmission production line includes a first transmission mechanism, a grinding and de-slag mechanism disposed at the feeding end of the first transmission mechanism, and a Class I robotic arm mechanism disposed at the discharging end of the first transmission mechanism; the grinding and de-slag mechanism includes a workbench, on which a pushing assembly for pushing the wheel rim onto the first transmission mechanism is assembled and connected; The grinding and removing welding slag mechanism also includes a grinding and removing welding slag assembly, which includes a grinding cylinder installed at the bottom of the workbench, and the grinding cylinder is equipped with grinding rods for grinding the weld seams on the inner and outer walls of the rim respectively; The grinding and removing welding slag assembly also includes a plurality of abutment rod structures for abutting against the outer side wall of the rim; The pushing assembly includes a pushing cylinder installed on the top of the workbench, the piston rod of the pushing cylinder is fixedly connected to a pushing seat mounting seat, and the pushing seat mounting seat is fixedly assembled with a pushing platform connected to the pushing rim; The pushing platform is provided with an arc-shaped limiting notch that matches the shape of the rim; The piston rod of the grinding cylinder is fixedly connected to a grinding rod mounting seat, and the grinding rod is fixedly mounted on both sides of the top of the grinding rod mounting seat; The workbench is provided with a sliding opening that matches the polishing rod, and the polishing rod is slidably connected to the sliding opening; The abutment structure includes a pair of abutments for abutting against positions on both sides of the outer side wall of the rim.

3. The wheel hub automated production line according to claim 2, characterized in that: The first transmission mechanism includes a belt conveyor, the belt conveyor includes a frame, belt drums are installed at both ends of the frame, and a transmission belt is installed between the belt drums; The conveyor belt is integrally formed with elastic ribs spaced apart on both sides. During the conveyor belt transmission process, the rim is supported between the tops of the elastic ribs. A plurality of guide rod structures for guiding the rim are fixedly mounted on both sides of the frame. The guide rod structures are used to correct the transmission posture of the rim. The guide rod structure includes a pair of guide rod frames fixedly mounted on the frame, and a pair of horizontal guide rods spaced apart vertically are respectively mounted between the guide rod frames; The two ends of the horizontal guide rod are respectively fixedly connected with a guide rod seat, the guide rod seats are respectively fixedly connected with a longitudinal connecting rod, and the guide rod frame is fixedly connected with a guide rod seat for installing the longitudinal connecting rod; the discharge end position of the frame is fixedly connected with a baffle for blocking the wheel rim.

4. The wheel hub automated production line according to claim 1, characterized in that: The Class I robotic arm mechanism includes a robotic arm, on which a gripping tool for gripping the wheel rim is mounted; The material grabbing tooling comprises a tooling mounting frame mounted on the robotic arm, and a material grabbing cylinder is mounted on the tooling mounting frame; A grabbing plate is fixedly connected to the piston rod of the grabbing cylinder; The tooling mounting frame and the material grabbing plate are respectively fixedly connected with material grabbing pressing seats on the side walls facing each other.

5. The wheel hub automated production line according to claim 3, characterized in that: The rim and spoke welding production line includes a second transmission mechanism for transmitting the spokes, a type II robotic arm mechanism for grabbing the rim, and a type III robotic arm mechanism located at the discharge end of the second transmission mechanism for grabbing the spokes; The Class II robotic arm mechanism includes a Class II robotic arm mechanism body, a rim grabbing structure for grabbing the rim is installed on the Class II robotic arm mechanism body, the rim grabbing structure includes a grabbing bracket installed on the Class II robotic arm mechanism body, a cylinder is installed on the grabbing bracket, and a first grabbing arm is fixedly connected to the piston rod of the cylinder; The grabbing bracket is fixedly connected to a second grabbing arm that cooperates with the first grabbing arm; The first grabbing arm and the second grabbing arm are respectively integrally formed with a grabbing arm rod that grabs the rim; A plurality of sliding rods are fixedly connected between the first grabbing arm and the second grabbing arm, and the sliding rods are slidably connected to the grabbing bracket; The front end of the slide rod is fixedly connected to a blocking end seat for blocking the first material grabbing arm.

6. The wheel hub automated production line according to claim 5, characterized in that: The second transmission mechanism includes a conveyor, and the conveyor includes a conveyor frame and a transmission belt installed on the conveyor; The discharging end of the conveyor is provided with a spoke top structure that cooperates with a Class III robotic arm mechanism; The spoke top structure includes a top clamping plate for clamping the spoke; The upper clamping plate is provided with a bayonet, and after the wheel spoke is transferred to the discharge end position on the transmission belt, the wheel spoke is clamped into the bayonet; A lifting cylinder is installed at the bottom of the lifting card plate; The shape of the bayonet is V-shaped; A guide frame with guide spokes is installed at the feed end of the conveyor frame; Both sides of the bottom of the upper clamping plate are respectively installed with upper cylinders, and the bottom of the upper cylinder is installed with a cylinder bracket, and the cylinder bracket is installed on the conveyor frame.

7. The wheel hub automated production line according to claim 5, characterized in that: The welding mechanism includes a welding table; The welding table is equipped with a welding frame; A welding assembly is installed on the welding frame, and the welding assembly includes a lifting cylinder, a lifting rod is installed on the lifting cylinder, and a welding gun structure is installed at the bottom of the lifting rod; The welding gun structure includes a welding gun mounting base fixedly mounted at the bottom of the lifting rod, and a plurality of welding gun parts are fixedly connected to the welding gun mounting base; The welding gun component includes a welding gun fixing seat fixedly connected to the welding gun mounting seat, a welding gun holder fixedly connected to the side wall of the welding gun fixing seat, and a welding gun head fixedly connected in the welding gun holder; The bottom of the welding gun mounting seat is fixedly connected to a welding spark block seat, and the welding gun head is limited in the welding spark block seat; the welding frame includes an upper frame seat, and the bottom of the upper frame seat is fixedly connected to a plurality of frame rods, and the frame rods pass through the welding table; The frame rod is fixedly connected to the welding table; The cylinder barrel of the lifting cylinder is fixedly mounted on the top of the upper frame seat; The piston rod of the lifting cylinder is fixedly connected to the lifting seat, and the lifting rod is fixedly installed at the bottom of the lifting seat; The top of the lifting seat is fixedly connected to a plurality of sliding guide rods which are slidably connected to the upper frame seat; The welding gun fixing seat is slidably connected to an adjusting short rod, and the adjusting short rod is fixedly connected to the welding gun mounting seat; A welding slag blowing mechanism is fixedly connected to the frame rod; The welding slag blowing mechanism includes a plurality of welding slag blowing pipes, each of which includes a straight pipe portion, each of which is integrally formed with a bent pipe portion, and the bent pipe portion faces the welding table; The welding slag blowing pipe is connected to the external pump air pipe; The top of the welding table is fixedly connected to a clamp with a limited discharge rim; The transverse cross-section of the clamp is in the shape of a ring, and the rim is limited on the outside of the clamp after the material is released.

8. The wheel hub automated production line according to claim 5, characterized in that: The wheel hub and spoke shaping production line includes several lathes for turning and milling the spokes on the wheel hub; The hub and spoke shaping production line further includes a third belt conveyor for transmitting the hub and a fourth belt conveyor cooperating with the third belt conveyor; A plurality of type III mechanical arm mechanisms for grabbing wheel hubs are provided between the third belt conveyor and the fourth belt conveyor; The lathe is arranged on one side of the third belt conveyor, and the fourth belt conveyor is arranged on the other side of the third belt conveyor; the fourth belt conveyor is arranged at a distance from the lathe through the third belt conveyor; The fourth belt conveyor is equipped with a plurality of wheel hub lifting mechanisms; The wheel hub lifting mechanism includes wheel hub pressing cylinders respectively installed on both sides of the fourth belt conveyor, and the piston rods of the wheel hub pressing cylinders are fixedly connected to the pressing seats pressing against the waist of the wheel hub; The wheel hub lifting mechanism also includes a lifting cylinder for pressing the wheel hub against the cylinder; The third belt conveyor and the fourth belt conveyor each include a belt conveyor frame, belt rollers are respectively installed at both ends of the belt conveyor frame, and a transmission belt is installed between the belt rollers; The bottom of the cylinder barrel of the wheel hub pressing cylinder is equipped with a cylinder base, and the bottom of the cylinder barrel of the lifting cylinder is equipped with a cylinder fixing seat, and the cylinder fixing seat is fixedly installed on the belt conveyor frame; The piston rod of the lifting cylinder is fixedly installed at the bottom center of the cylinder base.

9. The wheel hub automated production line according to claim 8, characterized in that: A plurality of infrared sensors for detecting wheel hubs are installed on the frame of the third belt conveyor; A plurality of infrared sensors for detecting wheel hubs are installed on the frame of the fourth belt conveyor.

10. The wheel hub automated production line according to any one of claims 5 to 9, characterized in that: The Class III robotic arm mechanism includes a Class III robotic arm mechanism body, on which a spoke material grabbing structure is mounted; the spoke material grabbing structure includes a material grabbing mounting frame mounted on the Class III robotic arm mechanism body, on which a material grabbing cylinder is mounted, and the material grabbing cylinder has a plurality of cylinder piston claws that cooperate with each other, and the spoke material is grabbed between the cylinder piston claws; The cylinder piston claws are respectively fixedly connected with pressure heads that press on the wheel spokes.

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