Automatic hub production line

Abstract

The automatic hub production line comprises a rim polishing and welding slag removing conveying production line, rim flaring equipment, rim weld joint detection equipment, rim forming equipment, a rim and spoke welding production line, hub shaping equipment, hub airtightness testing equipment, hub air hole punching equipment and a hub and spoke shaping production line. The mechanical arm further comprises a first-class mechanical arm mechanism, a plurality of second-class mechanical arm mechanisms and a plurality of third-class mechanical arm mechanisms. The method for producing and machining the hubs on the automatic hub production line comprises the following steps that a finished hub product is obtained after a welding seam on a rim is polished to remove welding slag, flaring forming is conducted on rim flaring equipment, the welding seam is detected, the rim is formed and machined, the hub is reshaped, air tightness detection is conducted, an air tap hole is formed in the hub, and a spoke on the hub is milled and shaped. By means of the structure, automatic production of hubs with the complex technology is achieved, the production efficiency is greatly improved, and meanwhile the production efficiency and benefits of products are improved.

Description

Technical Field

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

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

[0003] For example, the Chinese patent publication number is: CN112589079B, which is a continuous wheel hub cooling system based on automobile wheel hub production. It discloses the cooling method in the wheel hub production process, specifically including cooling troughs, guide rail groups, rail cars 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, the production of the wheel hub starts from the rim and spokes, and is finally processed into the finished wheel hub through complicated steps. Therefore, the production process involves complicated steps such as material loading, unloading, testing, and transportation. In the complicated production process, due to the insufficient intelligence of the existing production technology, the manpower and material resources consumed in the frequent loading, unloading, testing, and transportation of semi-finished workpieces during the production process are very huge. At the same time, the production efficiency of the entire production line is very low. In addition, the wheel hub is a heavy workpiece, and its various accessories are highly irregular, which further leads to difficulties in the operation of the production process. However, due to technical bottlenecks in the production process, current manufacturers still rely too much on manpower to produce wheel hub products with complex processes. Summary of the invention

[0005] Based on the above background, an object 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 wheel hub grinding and welding slag removal transmission production line, a wheel hub expansion device, a wheel hub weld detection device, a wheel hub forming device, a wheel hub spoke welding production line, a wheel hub shaping device, a wheel hub air tightness testing device, a wheel hub air hole opening device, and a wheel hub spoke shaping production line; the wheel hub automated production line also includes a Class I mechanical arm mechanism, a plurality of Class II mechanical arm mechanisms, and a plurality of Class III mechanical arm mechanisms; the method for producing and processing a wheel hub on the wheel hub automated production line includes the following steps:

[0008] (1) After the rim is ground from the feeding end of the rim slag removal transmission production line to remove the slag from the weld seam, it is transferred to the discharging end. Then, the Class I robotic arm mechanism grabs the rim and loads the rim onto the rim expansion equipment for expansion forming. (2) The Class I robotic arm mechanism grabs the rim again. 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 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 test. The qualified hub is grabbed and loaded onto the hub air hole drilling equipment to open the air nozzle hole on the hub; (7) Class III robotic arm mechanism grabs the drilled hub blank and loads it to the hub spoke shaping production line to obtain the hub finished product.

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

[0010] Preferably, the first transmission mechanism includes a belt conveyor, which includes a frame, belt drums are installed at both ends of the frame, and a transmission belt is installed between the belt drums; the transmission belt is integrally formed with elastic ribs arranged at intervals on both sides; and a plurality of guide rod structures for guiding the rim are fixedly installed on both sides of the frame. A baffle for blocking the rim is fixedly connected to the discharge end of the frame; the Class I mechanical arm mechanism includes a mechanical arm, and a material grabbing tool for grabbing the rim is installed on the mechanical arm; the material grabbing tool includes a tool mounting frame installed on the mechanical arm, and a material grabbing cylinder is installed on the tool mounting frame; a material grabbing plate is fixedly connected to the piston rod of the material grabbing cylinder; and a material grabbing press seat is fixedly connected to the side walls facing each other of the tool mounting frame and the material grabbing plate.

[0011] Preferably, the rim and spoke welding production line includes a second transmission mechanism for transmitting the spokes, a Class II mechanical arm mechanism, and a Class III mechanical arm mechanism; the rim and spoke welding production line also includes a welding mechanism; the Class II mechanical arm mechanism includes a Class II mechanical arm mechanism body, a rim grabbing structure for grabbing the rim is installed on the Class II mechanical arm mechanism body, the rim grabbing structure includes a grabbing bracket installed on the Class II mechanical 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; grabbing arm rods for grabbing the rim are 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; a blocking end seat for blocking the first grabbing arm is fixedly connected to the front end of the sliding rod;

[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 clamping slot is provided on the top clamping plate; a top cylinder is installed at the bottom of the top clamping plate; the shape of the clamping slot 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, and the cylinder bracket is installed on the conveyor frame.

[0013] Preferably, the welding mechanism comprises a welding table; the welding table is equipped with a welding frame; a welding assembly is installed on the welding frame, the welding assembly comprises 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 comprises 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 parts comprise 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 in the welding gun holder; The bottom is fixedly connected with a welding spark block; the welding frame includes an upper frame seat, the bottom of the upper frame seat is fixedly connected with a plurality of frame rods, and the frame rods are fixedly connected to the welding table; the lifting cylinder is installed on the top of the upper frame seat; the piston rod of the lifting cylinder is fixedly connected with the lifting seat; the top of the lifting seat is fixedly connected with a plurality of sliding guide rods; the welding spark block seat is provided with a plurality of limit opening structures for limiting the welding gun head; the welding gun fixing seat is slidably connected with an adjusting short rod, and the adjusting short rod is fixedly connected to the welding gun mounting seat; the frame rod is fixedly connected with a welding slag blowing mechanism. The top of the welding table is fixedly connected with a clamp.

[0014] Preferably, the wheel hub and spoke shaping production line includes several lathes for turning and milling the spokes on the wheel hub; the wheel hub and spoke shaping production line also includes a third belt conveyor and a fourth belt conveyor for transmitting the wheel hub; several Class III robotic arm mechanisms for grabbing the wheel 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 wheel hub; the hub lifting mechanism also includes a lifting cylinder; the third belt conveyor and the fourth belt conveyor both include a belt conveyor frame; 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 mechanical arm and the transportation equipment of the assembly line, the rims and spokes with high irregularities can be grasped, processed and inspected in a stable and streamlined manner, with a high degree of automation and a smooth working process, without the need for manual intervention. Many defects such as material jamming and conveyor shutdown will not occur during the whole process. 2. By improving the rim weld grinding device, the welds on the inner and outer walls of the rim can be synchronously polished, and the technical defect that the welds on the inner side of the rim are not easy to polish due to their hidden position can be effectively solved. 3. By improving the Class II mechanical arm mechanism and the Class III mechanical arm mechanism, the rims and spokes with high irregularities can be grasped during welding, and the welding efficiency can be greatly improved by cooperating with the welding mechanism. At the same time, by improving the production line for transmitting the spokes, the upper clamping plate and the V-shaped clamping mouth can be used to lift the spokes, and the spokes can be kept in a drooping posture, which is convenient for accurate material grasping. 4. By improving the welding mechanism, multiple welding guns can be welded synchronously, ensuring that each spoke arm is welded synchronously and the connection strength with the rim is the same after welding, which greatly improves the welding quality and effectively increases the welding quality of the hub. 5. During the spoke shaping process, the third belt conveyor, the fourth belt conveyor and the Class III mechanical arm mechanism cooperate to realize the smooth and high-speed loading, grabbing, milling, unloading and transmission of the hub. This method not only greatly improves production efficiency, but also greatly avoids many technical defects caused by the manual loading and unloading process. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1

[0020] like Figure 1 As shown, a hub automated production line includes a rim grinding and welding slag removal transmission production line 1, a rim expansion device 501, a rim weld detection device 502, a rim forming device 503, a rim spoke welding production line 2, a hub shaping device 504, a hub air tightness testing device 505, a hub air hole opening device 506, and a hub spoke shaping production line. The hub automated production line also includes a Class I robotic arm mechanism 13, a plurality of Class II robotic arm mechanisms 23, and a plurality of Class III robotic arm mechanisms 25; wherein the Class I robotic arm mechanism 13 is used to grab one end of the rim, the Class II robotic arm mechanism 23 is used to clamp and grab the double side walls of the rim, and the Class III robotic arm mechanism 25 is used to grab the spokes.

[0021] The method for producing and processing a wheel hub in a wheel hub automated production line comprises the following steps:

[0022] (1) After the rim is ground from the feed end of the rim grinding and slag removal 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 (arranged at the discharge end of the rim A grinding and slag removal production line 1), and feeds the rim A to the rim expansion device 501 (the rim expansion device 501 is a conventional expansion 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 a hub waistline a) that is concave inward is formed at the waist of the rim A. Fig.23 shown);

[0023] (2) The type I robot arm mechanism 13 grabs the rim A again, and the grabbing position is on the opposite side of the weld of the rim A. Then the type I robot arm mechanism 13 loads the rim A to 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, used to detect welds such as the tightness of welds) to inspect the weld of the rim A. The weld inspection device inspects whether the weld meets the standards;

[0024] (3) A type II mechanical arm mechanism (a type II mechanical arm mechanism 23 is arranged at the side of the rim forming device 503, marked as type II mechanical arm mechanism 23 No. 1) grabs the rim A from the rim weld inspection device 502 and loads it to 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 Fig.23 shown);

[0025] (4) The type II robotic arm mechanism 23 grabs the rim A formed on the rim forming device 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 wheel hub blank from the wheel rim and spoke welding production line 2 and loads it onto the wheel hub shaping device 504 to reshape the wheel hub (a type II robotic arm mechanism 23 is arranged at the side of the wheel 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 perform air tightness testing on 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 a pressure gauge for testing). For the wheel hub with qualified air tightness, the Class II robotic arm mechanism 23 (a 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) grabs it again and sends 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 wheel hub blank with holes drilled in step (6), and the grabbing position is on the wheel spoke. After grabbing, the material is loaded onto the wheel hub spoke shaping production line (a number of Class III robotic arm mechanisms 25 are arranged on the wheel hub 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 wheel hub are milled and shaped by a lathe to obtain a finished wheel hub.

[0029] In the whole production line, a Class I robotic arm mechanism 13 grabs the rim A after grinding the weld of the rim A, expands the rim, and inspects the weld to complete the first stage, ensuring the quality (welding) of the rim A. Then, the 1st to 3rd Class II robotic arm mechanisms 23 and the first Class III robotic arm mechanism 25 are used to shape the rim A that has passed the inspection, and then weld it, forming the hub blank during the welding process. The second stage is completed after the Class II robotic arm mechanism 23 shapes, forms, tests air tightness, and opens the air nozzle hole, etc. The spokes on the hub blank are then shaped by the nth Class III robotic arm mechanism 25, and the finished product can be obtained after the spokes are shaped into a specific shape by milling on a CNC lathe.

[0030] Embodiment 2 Wheel rim grinding and welding slag removal transmission device

[0031] like Figure 1-23 As shown, the rim grinding and welding slag removal transmission device, the first transmission mechanism 12, the grinding and welding slag removal mechanism 11 arranged at the feeding end position of the first transmission mechanism 12, and the type I mechanical arm mechanism 13 arranged at the discharging end position of the first transmission mechanism 12. During the working process, the welding slag on the inner and outer wall welds of the rim A is quickly ground and removed by the grinding and welding slag removal mechanism 11, and then quickly pushed to the first transmission mechanism 12 to be transmitted to the discharging end position, and the type I mechanical arm mechanism 13 quickly grabs the material and loads it to the workbench of subsequent equipment such as the testing equipment.

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

[0033] At the same time, an arc-shaped limiting notch matching the shape of the rim A is provided on the pushing platform 113. The arc-shaped limiting notch can realize that the rim A is limitedly engaged in the arc-shaped limiting notch during the process of pushing the rim A, thereby increasing the stability of pushing. The above-mentioned grinding and removing welding slag mechanism 11 also includes a grinding and removing welding slag component. Specifically, the grinding and removing welding slag component can realize the grinding and removing of welding slag from the weld seams on the inner and outer side walls of the rim A at the same time.

[0034] Specifically, the grinding and welding slag removal assembly includes a grinding cylinder 116 installed at the bottom of the workbench 111 (same as the existing method, the cylinder barrel of the grinding cylinder 116 is fixedly installed at the bottom of the workbench 111 through a cylinder barrel mounting seat), 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 rod 115 is 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 that cooperates with the grinding rod 115 is provided on the workbench 111, and the grinding rod 115 is slidably connected to the sliding opening. During the working process, under the drive of the grinding cylinder 116, at this time, the grinding rod 115 is abutted against the weld, and the rapidly descending grinding rod 115 quickly removes the welding slag on the weld along the upper end to the lower end of the weld. This method realizes the synchronous grinding of the welds on the inner and outer side walls of the rim A, and effectively solves the technical defect that the weld on the inner side of the rim A is not easy to grind due to its hidden position. Double-sided synchronous grinding greatly improves the efficiency of grinding. 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 friction welding slag.

[0036] In order to keep the rim A from loosening during the grinding process and ensure that the grinding rod 115 is polished neatly along the weld, the grinding and slag removal assembly also includes a plurality of abutment rod structures for abutting against the outer wall of the rim A. Specifically, the abutment rod structure includes a pair of abutment rods for abutting against the two sides of the outer wall of the rim A. The abutment rods on both sides can keep the rim A from moving during the grinding process, which greatly increases the accuracy of the grinding.

[0037] Example 3

[0038] like Figure 1-23As shown, in this embodiment, based on the structure of embodiment 2, the first transmission mechanism 12 includes a belt conveyor, wherein the belt conveyor is a conventional transmission belt conveyor disclosed in the prior art, and its main structure is the same as the existing belt conveyor, including a frame 121, belt drums are installed at both ends of the frame 121, and a transmission belt 122 is installed between the belt drums (same as the existing belt conveyor, the motor installed on the belt drum drives the belt drum to rotate, and then the belt transmits the material). In order to keep the rim A in a supported manner during the working process and to facilitate the correction of the posture of the rim A during the transmission process, the transmission belt 122 is integrally formed with elastic ribs 1221 arranged at intervals on both sides (the bottom of the rim A spans between the elastic ribs 1221), and during the transmission of the transmission belt 122, the rim A is supported between the tops of the elastic ribs 1221. The elastic ribs 1221 are made of elastic material, so they move synchronously with the belt. Because the rim A is supported on the elastic ribs 1221, the support surface is small, so it is easier to move during the posture correction process. 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 preparation is 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 from each other are respectively installed between the guide rod frames 1241. Specifically, the two ends of the horizontal guide rod 1242 are respectively fixedly connected to guide rod seats, and the guide rod seats are respectively fixedly connected to longitudinal connecting rods, and the guide rod frame 1241 is fixedly connected to a guide rod seat for mounting the longitudinal connecting rod. During operation, the offset rim A contacts the horizontal guide rod 1242. Under the contact and push of the horizontal guide rod 1242, the rim A moves on the elastic rib 1221 and contacts the horizontal guide rod 1242 on the other side, and then the posture of the rim A is corrected under the guidance of the horizontal guide rods 1242 on both sides. A baffle 123 is fixedly connected to the discharge end of the frame 121 to block the rim A and prevent the rim A from falling off the conveyor belt 122.

[0040] Example 4

[0041] like Figure 1-23As shown, based on the structure of Example 3, in order to realize automatic grasping of the rim A at the discharge end position and further improve the production efficiency of the rim A, the above-mentioned Class I mechanical arm mechanism 13 includes a mechanical arm 131 (wherein the mechanical arm 131 is a conventional industrial production mechanical arm 131 disclosed in the prior art). In order to grasp the rim A in proportion, a grasping tool 132 for grasping the rim A is installed on the above-mentioned mechanical arm 131; the grasping tool 132 corresponds to the shape of the rim A.

[0042] Specifically, the material grabbing tooling includes a tooling mounting frame 1321 installed on the robot arm 131, and a material grabbing cylinder 1322 is installed 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 installed on the material grabbing plate mounting seat 13221); material grabbing pressure seats 1324 are respectively fixedly connected to the side walls of the tooling mounting frame 1321 and the material grabbing plate 1323 facing each other.

[0043] The material grabbing tooling is used to grab one side of the rim A during the material grabbing process, while the other side of the rim A is where the weld is located. Therefore, after grabbing one side, the robot arm 131 loads the rim A onto the inspection table of the inspection equipment, and this material grabbing method can ensure that the weld is fully facing the inspection equipment on the inspection table, such as a camera. Specifically, during the material grabbing process, the robot arm 131 drives the tooling mounting frame 1321 to descend until the rim A is inserted into the gap between the material grabbing plate 1323 and the end of the tooling mounting frame 1321. At this time, the material grabbing cylinder 1322 works, driving the material grabbing plate 1323 to approach the tooling mounting frame 1321 until the material grabbing pressure seats 1324 on both sides are pressed on the rim A, thereby fully and stably grabbing the rim A.

[0044] Example 5

[0045] like Figure 1-23As shown, based on the structure of Example 4, this embodiment discloses a rim and spoke welding production line, which specifically includes a Class II mechanical arm mechanism 23 for grabbing the rim, a second transmission mechanism for transmitting the spoke B, and a Class III mechanical arm mechanism 25 located at the discharge end of the second transmission mechanism for grabbing the spoke B. The rim and spoke welding production line also includes a welding mechanism 24. During the working process, first, the Class II mechanical arm mechanism 23 grabs the product and puts it on the welding mechanism 24, then the second transmission mechanism transfers the spoke B to the discharge end, then the Class III mechanical arm mechanism 25 grabs the material and loads the spoke B onto the welding mechanism 24 and puts it into the rim, and then the welding mechanism 24 performs welding. In order to realize the grabbing of the rim, the Class II mechanical arm mechanism 23 includes a Class II mechanical arm mechanism body 231 (the Class II mechanical arm mechanism body 231 is a conventional mechanical arm used in existing industrial production), and a rim grabbing structure 232 for grabbing the rim is installed on the Class II mechanical 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-shaped 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 has the same shape as the second grabbing arm 2322. Specifically, a grabbing arm rod 2324 for grabbing the rim is formed integrally on the first grabbing arm 2323 and the second grabbing arm 2322 (the grabbing arm rod 2324 has a sufficient extension length to achieve stable grabbing of the cylindrical rim). In order to better clamp the rim, an arc-shaped bayonet is provided on the inner side wall 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 with a blocking end seat 23251 for blocking the first grabbing arm 2323 (intended to prevent the first grabbing arm 2323 from detaching).

[0049] During the working process, first, driven by the type II mechanical arm mechanism body 231, the first grabbing arm 2323 on the rim grabbing structure 232 extends toward the second grabbing arm 2322 to the outside of the rim, and then, driven by the cylinder 2326, the first grabbing arm 2323 approaches the second grabbing arm 2322 until the first grabbing arm 2323 cooperates with the second grabbing arm 2322 to clamp the rim between the grabbing arm rods 2324, and then, the type II mechanical arm mechanism body 231 delivers the grabbed rim to the workbench of the welding equipment. The above method can realize the grabbing of rims that are difficult to grasp by mechanical arms, and realize the cooperation between the type II mechanical arm mechanism body 231 and the type III mechanical arm mechanism body 251 described below, and the type II mechanical arm mechanism body 231 and the type III mechanical arm mechanism body 251 described below can cooperate with the production line, so as to greatly improve the smoothness of production during the production process and ensure the efficient operation of unloading and welding.

[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 grabbing mounting frame 2521 installed on the Class III robotic arm mechanism body 251, and a grabbing cylinder 2522 is installed on the grabbing mounting frame 2521, and the grabbing cylinder 2522 has a plurality of cylinder piston claws 2523 that cooperate with each other, and the spoke material grabber is between the cylinder piston claws.

[0052] Specifically, the material grabbing cylinder 2522 is a three-claw material grabbing cylinder 2522 disclosed in the prior art, and three cylinder piston claws 2523 distributed around the cylinder are installed on the cylinder. At the same time, in order to increase the material grabbing stability of the spoke B, the above-mentioned cylinder piston claws 2523 are respectively fixedly connected with pressure heads 25231 that squeeze on the spoke B. During the working process, when the rim is grabbed and loaded onto the workbench of the welding mechanism 24, at this time, under the drive of the Class III mechanical arm mechanism body 251, in the spoke grabbing structure 252, the material grabbing cylinder 2522 achieves the gripping of the spoke B through the cooperation of the cylinder piston claws 2523, and keeps it horizontally lowered 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 unloading from the production equipment to the vicinity of the welding mechanism 24 for facilitating the 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, a guide frame 21 for guiding the spoke B is installed at the feeding end of the conveyor frame 261. Specifically, the guide frames 21 are fixedly installed on both sides of the conveyor frame 261, and the spoke B is placed between the guide frames. The spoke B moves toward the unloading end under the transmission of the transmission belt 262. In order to achieve the grasping of the spoke B at the unloading end in coordination with the Class III mechanical arm mechanism 25, a spoke top structure 22 cooperating with the Class III mechanical arm mechanism 25 is installed at the unloading end of the above-mentioned conveyor.

[0056] That is, the spoke B is corrected in shape and lifted up by the spoke lifting structure 22. Specifically, the spoke lifting structure 22 includes a lifting clamping plate 221 for clamping the spoke B. At the same time, a clamping port 222 (toward the feeding end position of the belt) is provided on the lifting clamping plate 221. After the spoke B is transmitted to the discharging end position on the transmission belt, the spoke B is clamped into the clamping port 222 (the shape of the clamping port 222 is V-shaped). Specifically, when the spoke B encounters the V-shaped clamping port 222, at this time, under the guidance of the clamping port 222, the spoke B is clamped into the V-shaped clamping port 222. In this process, because the spoke B is limited in the clamping port 222, at this time, the lifting clamping plate 221 is lifted up by the lifting cylinder described below, and the spoke B limited in the clamping port 222 is automatically corrected to a vertical state, which is convenient for the robot arm to grab.

[0057] Specifically, a lifting cylinder 223 is installed at the bottom of the lifting clamping plate 221. Specifically, the lifting cylinders 223 are installed on both sides of the bottom of the lifting clamping plate 221, and the cylinder bracket 2231 is installed at the bottom of the lifting cylinder 223, and the cylinder bracket 2231 is installed on the conveyor frame 261. Through the above structure, the lifting cylinder 223, the lifting clamping plate 221, and the V-shaped bayonet 222 are used to lift the special-shaped spoke B. During the lifting process, the upper end of the spoke B is blocked at the top position of the V-shaped bayonet 222, and then after the spoke B is lifted, the spoke B is corrected to a vertical state, so that the robot arm can grab the spoke B in the correct position.

[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 welding table 241 is fixedly connected to a clamp 244 for limiting the position of the rim; the transverse cross-sectional shape of the clamp 244 is annular, and the rim is limited on the outside of the clamp after the rim is released. The robot arm grabs the rim and releases it to the clamp 244 until the rim is inserted and limited on the clamp 244. The 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 (playing a supporting role), and the frame rods 2421 pass through the welding table 241.

[0061] The welding frame is provided with a welding assembly 243, which includes a lifting cylinder 2433, the cylinder of which is fixedly mounted at the top center of the upper frame seat 242. Meanwhile, the lifting cylinder 2433 is provided with a lifting rod 24332, 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 installed at the bottom of the lifting seat 24331. At the same time, the top of the lifting seat 24331 is fixedly connected to a plurality of sliding guide rods slidably connected to the upper frame seat 242. The sliding guide rods are used to improve the stability during the lifting process. At the same time, the above-mentioned welding gun structure 2434 includes a welding gun mounting seat 24344 fixedly installed at the bottom position of the lifting rod 24332, and a plurality of welding gun parts are fixedly connected to the welding gun mounting seat 24344. During the welding process, each welding gun part is welded to the connection part between a spoke arm on the spoke and the rim to achieve synchronous welding.

[0063] Specifically, the welding gun part includes a welding gun fixing seat 24343 fixedly connected to the welding gun mounting seat 24344 (the welding gun fixing seat 24343 is slidably connected with an adjusting short rod 243432, and the adjusting short rod 243432 is fixedly connected to the welding gun mounting seat 24344. This method realizes that the positions of all welding gun heads 24342 can be adjusted during the actual working process. The method is sliding adjustment. According to the existing method, in order to adjust the positioning after adjustment, the above welding gun fixing seat 24343 is threadedly connected with a bolt for squeezing and positioning the welding gun head), and a welding gun holder 243431 is fixedly connected to the side wall of the welding gun fixing seat 24343, and a welding gun head 24342 is fixedly connected inside the welding gun holder 243431. Among them, the welding gun head 24342 is a welding head used on a conventional welding device disclosed in the prior art, which is the same as the existing welding head, and the top of the welding head is electrically connected through a connected wire. During the working process, when the spokes and the rim are loaded, at this time, driven by the lifting cylinder 2433, the entire welding gun structure 2434 descends, and each welding gun head 24342 synchronously welds the connection between the spoke arm and the rim.

[0064] Example 9

[0065] like Figure 1-23 As shown, based on the structure of Example 1, in the welding process, a large amount of welding sparks splash upward, which not only easily causes the wire connected to the welding gun head 24342 to catch fire, but also damages the equipment. Therefore, a welding spark blocker 24341 is fixedly connected to the bottom of the welding gun mounting seat 24344, and the welding gun head 24342 is limited in the welding spark blocker 24341. During the welding process, the splashing sparks are blocked by the welding spark blocker 24341 and splash downward onto the ground.

[0066] Similarly, in order to protect the welding gun head 24342, the welding spark blocker 24341 is provided with a plurality of limiting opening structures 243411 for limiting the welding gun head 24342. The limiting opening structure 243411 includes an elliptical through hole portion 2434111 provided on the welding spark blocker 24341, and a side wall through hole portion 2434112 integrally formed on the elliptical through hole portion is provided on the outer wall of the welding spark blocker 24341; the welding gun head 24342 is limited in the elliptical through hole portion 2434111. The protection of the welding gun head 24342 is achieved under the protection of the limiting opening structure 243411 with a certain depth. The bottom of the welding head 24342 is the welding end passing through the bottom of the elliptical through hole portion 2434111.

[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 an external pump air pipe. The external pump air pipe is connected to the air source, so that during welding, a cooling airflow such as nitrogen is blown onto the welded workpiece to remove the welding slag and cool it down.

[0069] Example 11 Wheel hub spoke shaping production line

[0070] like Figure 1-23 As shown, based on the structure of Example 10, this embodiment discloses a hub spoke shaping production line, which specifically includes a plurality of lathes for milling spokes on the hub. The lathe is a conventional CNC lathe disclosed in the prior art, and the spokes on the hub can be milled into a specific shape to form a finished hub product during operation. Specifically, the hub spoke shaping production line also includes a third belt conveyor 3 for transmitting the hub blank C and a fourth belt conveyor 4 cooperating with the third belt conveyor 3. Specifically, a plurality of Class III mechanical arm mechanisms for grabbing the hub are arranged between the third belt conveyor 3 and the fourth belt conveyor 4; the lathe is arranged at the front side of the third belt conveyor 3, and the fourth belt conveyor 4 is arranged at the rear side of the third belt conveyor 3; the fourth belt conveyor 4 is arranged at a distance from the lathe through the third belt conveyor 3.

[0071] During the working process, after the hub blank C is loaded and transferred by the fourth belt conveyor 4, it is grabbed by the Class III mechanical arm mechanism and loaded into the lathe. Subsequently, when the lathe completes the processing of the spokes on the hub blank C, the finished hub is unloaded by the mechanical arm again and unloaded by the fourth belt conveyor 4. The third belt conveyor 3 and the fourth belt conveyor 4 are the same as the structure of the existing belt conveyor, and both ends of the belt conveyor frame are respectively installed with belt rollers (the belt rollers are driven by a motor in the same way as in the existing method), and a transmission belt is installed between the belt rollers.

[0072] Example 12

[0073] like Figure 1-23As shown, based on the structure of Example 11, in order to achieve the purpose of grabbing the hub with the robot arm, several hub lifting mechanisms 41 are installed on the fourth belt conveyor 4. Specifically, after the hub blank C is loaded onto the loading end of the fourth belt conveyor 4, the hub blank C is transmitted on the fourth belt conveyor 4. When the hub blank C is transmitted to the position where the hub lifting mechanism 41 is located, the hub is clamped and lifted by the hub lifting mechanism 41, and then the robot arm grabs the lifted hub blank C. Specifically, the hub lifting mechanism 41 includes hub pressing cylinders 411 respectively installed on both sides of the fourth belt conveyor 4, and the piston rod of the hub pressing cylinder 411 is fixedly connected to a pressing seat 412 pressed against the waist of the hub blank C.

[0074] Specifically, in order to stably clamp the wheel hub blank C, the above-mentioned pressing seat 412 is provided with an arc-shaped waist opening for clamping the waist of the wheel hub blank C according to the shape of the wheel hub blank C. Under the action of the wheel hub pressing cylinders 411 on both sides, the pressing seat 412 is clamped on both sides of the waist of the wheel hub blank C and is stably clamped. At the same time, the wheel hub lifting mechanism 41 also includes a lifting cylinder 414 for lifting the wheel hub pressing cylinder 411.

[0075] Specifically, a cylinder base 143 is installed at the bottom of the cylinder of the wheel hub pressing cylinder 411, and a cylinder fixing seat is installed at the bottom of the cylinder of the lifting cylinder 414, and the cylinder fixing seat is fixedly installed on the frame of the belt conveyor; the piston rod of the lifting cylinder 414 is fixedly installed at the bottom center of the cylinder base 143. At the same time, in order to improve the stability of lifting the wheel hub blank C, a pair of guide rails 415 are fixedly connected to the top of the cylinder fixing seat, which are spaced at both sides and slidably connected to the cylinder base 143.

[0076] During the working process, 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 mechanical arm mechanism grabs the hub blank C. The above method can achieve the clamping, locking and lifting of the hub blank C in a highly stable manner, which is convenient for cooperating with the Class III mechanical arm mechanism to load the hub blank C into the lathe. During the working process, driven by the spoke mechanical arm body 251, in the spoke grabbing structure 252, the grabbing cylinder 2522 grabs the spoke B through the cooperation of the cylinder piston claw 2523, and then the hub blank C is fully grasped. Since the spoke B is located in the center of the hub blank C and is small in size, it is easier to grab.

[0077] Embodiment 13

[0078] like Figure 1-23As shown, in this embodiment, based on the structure of embodiment 12, according to the prior art, several infrared sensors 31 for detecting the wheel hub are installed on the frame of the third belt conveyor 3. Among them, the infrared sensor is a conventional infrared sensor 31 for detecting materials disclosed in the prior art. The infrared sensor 31 on the third belt conveyor 3 is used to detect the wheel hub on the third belt conveyor 3, so as to avoid the robot arm repeatedly feeding the wheel hub to the same position (i.e. causing the wheel hub to overlap). In the same way as in the prior art, during the operation of the robot arm, the wheel hub is lowered into the area between the infrared sensors 31, and in this way, the infrared sensor 31 is used to detect whether there is a wheel hub on the belt conveyor. Similarly, several infrared sensors 31 for detecting the wheel hub blank C are installed on the frame of the fourth belt conveyor 4 to detect whether there is a wheel hub on the fourth belt conveyor 4, so as to facilitate the robot arm to grab.

[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 expansion equipment, rim weld detection equipment, rim forming equipment, rim spoke welding production line, hub shaping equipment, hub air tightness testing equipment, hub air hole drilling equipment and hub 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 transmission production line to remove the 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 expanding equipment for expansion forming. After expansion, a hub waistline that is concave inward is formed at the waist of the rim; (2) The Class I robotic arm mechanism grabs the wheel rim again, with the grabbing position being on the opposite side of the wheel rim weld. The Class I robotic arm mechanism then loads the wheel rim onto the wheel rim weld inspection equipment for wheel rim weld inspection. The weld inspection equipment then inspects whether the weld meets the standards. (3) The Class II robotic arm mechanism grabs the rim from the rim weld inspection device and loads it onto the rim forming device 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, grabs it onto the rim-spoke welding production line, and puts it into the rim for welding to form a hub blank; (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 device and sends it to the wheel hub air tightness testing device 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 punching device to open the air nozzle hole on the wheel hub; (7) The Class III robotic arm mechanism grabs the wheel hub blank with holes drilled in step (6), and the grabbing position is on the spoke. After grabbing, the material is loaded onto the wheel hub spoke shaping production line. The spokes on the wheel hub are milled and shaped by a lathe to obtain a finished wheel hub.

2. The wheel hub automated production line according to claim 1, characterized in that: The wheel rim grinding and welding slag removal transmission production line comprises a first transmission mechanism, a grinding and welding slag removal mechanism arranged at the feeding end of the first transmission mechanism, and a Class I mechanical arm mechanism arranged at the discharging end of the first transmission mechanism; the grinding and welding slag removal mechanism comprises a workbench, and a pushing component for pushing the wheel rim onto the first transmission mechanism is assembled and connected on the workbench; 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 respectively grinding the welding seams on the inner and outer side walls of the rim; The grinding and welding slag removal assembly also includes a plurality of abutment rod structures for abutting against the outer side wall of the rim; The pushing assembly comprises a pushing cylinder installed on the top of the workbench, a pushing seat mounting seat is fixedly connected to the piston rod of the pushing cylinder, and a pushing platform with a pushing rim is fixedly assembled on the pushing seat mounting seat; The pushing platform is provided with an arc-shaped limiting notch matching the shape of the rim; A grinding rod mounting seat is fixedly connected to the piston rod of the grinding cylinder, 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 matched with the grinding rod, and the grinding rod is slidably connected to the sliding opening; The abutment rod structure comprises a pair of abutment rods 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 comprises a belt conveyor, the belt conveyor comprises 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, and 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 installed on both sides of the frame, and the transmission posture of the rim is corrected through the guide rod structures; The guide rod structure comprises a pair of guide rod frames fixedly mounted on the frame, and a pair of horizontal guide rods spaced apart from each other are respectively mounted between the guide rod frames; The two ends of the horizontal guide rod are respectively fixedly connected with guide rod seats, the guide rod seats are respectively fixedly connected with longitudinal connecting rods, and the guide rod frame is fixedly connected with a guide rod seat for installing the longitudinal connecting rods; a baffle for blocking the wheel rim is fixedly connected to the discharge end of the frame.

4. The wheel hub automated production line according to claim 1, characterized in that: The Class I mechanical arm mechanism comprises a mechanical arm, on which a material grabbing tooling for grabbing a wheel rim is mounted; The material grabbing tool comprises a tool mounting frame mounted on the mechanical arm, and a material grabbing cylinder is mounted on the tool mounting frame; A material grabbing plate is fixedly connected to the piston rod of the material 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 mechanical arm mechanism for grabbing the rim, and a type III mechanical arm mechanism for grabbing the spokes at the discharge end of the second transmission mechanism; The rim and spoke welding production line also includes a welding mechanism; The class II mechanical arm mechanism comprises a class II mechanical arm mechanism body, a rim grabbing structure for grabbing a rim is installed on the class II mechanical arm mechanism body, the rim grabbing structure comprises a grabbing bracket installed on the class II mechanical 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 with a second grabbing arm cooperating 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 wheel 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 with 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 comprises a conveyor, and the conveyor comprises 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 mechanical arm mechanism; The wheel spoke upper structure comprises an upper clamping plate for clamping the wheel spoke; The upper clamping plate is provided with a clamping slot, and after the wheel spoke is transmitted to the discharge end position on the transmission belt, the wheel spoke is clamped into the clamping slot; 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 comprises 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 comprises a welding gun mounting seat fixedly mounted at the bottom of the lifting rod, and a plurality of welding gun parts are fixedly connected to the welding gun mounting seat; The welding gun part comprises 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 in the welding gun holder; The bottom of the welding gun mounting seat is fixedly connected to a welding spark blocker, and the welding gun head is limited in the welding spark blocker; 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 a 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 with a plurality of sliding guide rods which are slidably connected to the upper frame seat; the welding spark blocking seat is provided with a plurality of limiting opening structures for limiting welding gun heads; The position limiting opening structure comprises an elliptical through hole portion formed on the welding spark arrester, and the outer side wall of the welding spark arrester is provided with a side wall through hole portion integrally formed on the elliptical through hole portion; The welding gun head is limited in the oval through hole; The welding gun fixing seat is slidably connected with 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, and 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 position 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 spoke shaping production line includes a plurality of lathes for turning and milling wheel spokes on the wheel hub; The hub and spoke shaping production line also 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 arranged 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 provided with a plurality of wheel hub lifting mechanisms; The wheel hub lifting mechanism comprises wheel hub pressing cylinders respectively installed at both sides of the fourth belt conveyor, and the piston rod of the wheel hub pressing cylinder is fixedly connected to a pressing seat pressed 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 both 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; A cylinder base is installed at the bottom of the cylinder barrel of the wheel hub pressing cylinder, and a cylinder fixing seat is installed at the bottom of the cylinder barrel of the lifting cylinder, and the cylinder fixing seat is fixedly installed on the belt conveyor frame; The piston rod of the lifting cylinder is fixedly mounted on 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 mechanical arm mechanism comprises a Class III mechanical arm mechanism body, on which a spoke material grabbing structure is installed; the spoke material grabbing structure comprises a material grabbing mounting frame installed on the Class III mechanical arm mechanism body, on which a material grabbing cylinder is installed, and the material grabbing cylinder has a plurality of cylinder piston claws that cooperate with each other, and the spoke material grabbing is 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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