Rim blank standard part processing production line

Abstract

The present invention discloses a processing production line for rim blank standard parts, which sequentially includes a sheet sawing device, a sheet unit rolling and bending device, an annular plate unit trimming device, an annular plate unit flaring device, a rim flanging device, a rim cylinder trimming device, a rim curling device and a tire mounting surface shaping device. A curling material welding device is arranged on one side of the sheet unit rolling and bending device; between the annular plate unit trimming device and the annular plate unit flaring device, between the annular plate unit flaring device and the rim flanging device, between the rim flanging device and the rim cylinder trimming device, between the rim cylinder trimming device and the rim curling device, and between the rim curling device and the tire mounting surface shaping device, each annular unit plate is transferred by respective robots. From the above structure, it can be seen that for the processing production line of rim blank standard parts of the present invention, through the layout of the production line of the present application and the structures of various devices, the automatic production of rim blank standard parts can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of hub processing and production, and particularly to a production line for processing standard parts of rim blanks. Background Art

[0002] A hub is the rotating part of the wheel core where the inner profile of the tire is connected to the wheel steel through columns, that is, the metal part in the center that supports the tire and is installed on the axle. It is also called a wheel rim, steel rim, wheel, or tire bell. There are many types of hubs according to different diameters, widths, forming methods, and materials.

[0003] Generally, a hub is fixedly connected coaxially by a rim and a spoke. For the rim, its production process generally involves cutting out aluminum plates that meet the size requirements according to the model size of the hub, and then rolling the aluminum plate units into a circle and welding them. In fact, for the corresponding rolling devices, bending devices, welding devices, and even rolling devices in this production and processing method, they need to be adjusted or customized for different rim blanks corresponding to different current hub models. As a result, after each change in the hub model produced, the production equipment corresponding to the rim blank needs to be adjusted, resulting in a relatively high labor intensity and a reduced production efficiency.

[0004] Moreover, in order to save production costs, hub production enterprises hope that different-sized rims can use as few types of blanks as possible. This can not only shorten the production time and advance the delivery date by stocking up in advance; but also facilitate purchasing raw materials in advance at a lower price according to the price of the raw materials and then carrying out production, thereby further reducing production costs; and it can also avoid the downtime loss of production equipment and ensure the more efficient operation of the inventory and funds of the production enterprise. However, currently, for the production of hubs, it is all small-batch customized production. Since small-batch customized production requires replacing the corresponding equipment molds, and after replacing the equipment molds, it will involve debugging and trial production, and only after ensuring the product quality can mass production be carried out. This results in a relatively fixed and long time cycle for hub production, and relatively high production costs; and for the products of small-batch customized production, in order to avoid replenishment during the later transportation process and after-sales process, inventory needs to be reserved for the customized products, resulting in relatively high inventory costs; all of the above will further increase the final selling price of the product.

[0005] For this reason, the patent document with the application number 202111230454.4 provides a production process, which realizes the production of rims with different axial widths by producing a large number of standard parts of rim blanks, reduces the production cost, and effectively combines the large-scale production mode of the enterprise's production end to reduce costs with the small-batch customized production of the sales end.

[0006] However, there is currently no automated production equipment on the market for the above-mentioned large-scale production of standard parts of rim blanks, resulting in the above production process not being able to be effectively implemented. Summary of the Invention

[0007] The object of the present invention is to overcome the deficiencies of the prior art and provide a production line for processing standard parts of rim blanks. Through the layout of the production line and the structures of various devices in this application, the automated production of standard parts of rim blanks and the automated production of annular connecting bar units can be achieved. Furthermore, a large quantity of stock of standard parts of rim blanks and annular connecting bars can be realized. When the sales department receives small-batch customized products, customized production can be carried out immediately, thereby greatly improving the production speed of small-batch customized products and reducing the production cost. Since the production speed is relatively fast, inventory can be reduced, and the inventory cost can be further lowered.

[0008] The technical solution adopted by the present invention is as follows:

[0009] The production line for processing standard parts of rim blanks successively includes a sheet sawing device, a sheet unit rolling device, an annular plate unit trimming device, an annular plate unit flaring device, a rim flange turning device, a rim barrel trimming device, a rim flange curling device, and a tire mounting surface shaping device along the material production transmission direction. A curling material welding device is further provided on one side of the sheet unit rolling device; between the annular plate unit trimming device and the annular plate unit flaring device, between the annular plate unit flaring device and the rim flange turning device, between the rim flange turning device and the rim barrel trimming device, between the rim barrel trimming device and the rim flange curling device, and between the rim flange curling device and the tire mounting surface shaping device, each robot is respectively used to transfer the annular unit plate, and the robot is located on the side of the curling material welding device corresponding to the sheet unit rolling device.

[0010] A further improvement of the present invention is that the sheet sawing device includes a sawing table. A sheet loading rack is fixedly connected to the side of the sawing table away from the sheet unit rolling device. A strip-shaped hole is provided on the top surface of the sawing table along the direction perpendicular to the sheet loading rack. A vertically arranged saw blade is rotatably connected inside the sawing table. The top of the saw blade extends upward through the strip-shaped hole and reciprocates along the strip-shaped hole. A horizontal cross bar is fixedly connected above the top surface of the sawing table corresponding to the strip-shaped hole. Horizontal pressing bars are respectively provided at the bottom of the horizontal cross bar corresponding to both sides of the strip-shaped hole. The horizontal pressing bars are vertically movably connected to the horizontal cross bar through pneumatic piston cylinders.

[0011] A further improvement of the present invention is that the curled sheet material unit welding device includes a base frame, two opposite side walls of the base frame are open to form a frame inner cavity, the top of the base frame includes longitudinal horizontal top rods arranged in parallel and symmetrically on both sides, a longitudinal strip through hole is formed between the longitudinal horizontal top rods, and the longitudinal horizontal top rods are also provided with a weld scar removal device and a welding device driven by a longitudinal drive device A to reciprocate along the longitudinal horizontal direction, the weld scar removal device and the welding device are fixedly connected, and a milling cutter and a welding head are respectively provided at the bottom of the weld scar removal device and the bottom of the welding device corresponding to the position of the strip through hole, the milling cutter is located in the strip through hole, and is horizontally rotated around a vertical axis by a milling cutter driving motor, and the milling cutter driving motor is connected to the remover through a milling cutter lifting device. The welding scar device is movably connected up and down, and the welding head is correspondingly located in the strip through hole, and is movably connected to the welding device up and down through the welding head lifting device. The longitudinal driving device A is fixedly connected to the base frame, and the base frame is also movably connected with a longitudinally arranged horizontal fixing plate. The horizontal fixing plate reciprocates horizontally relative to the base frame through the transverse driving device A. The transverse driving device A is fixedly connected to the base frame. When the horizontal fixing plate moves horizontally to the maximum stroke on one side, the horizontal fixing plate is located outside the base frame. When the horizontal fixing plate moves horizontally to the maximum stroke on the other side, the horizontal fixing plate is located directly below the strip through hole and corresponds to the milling cutter and the welding head. The longitudinal movement range of the milling cutter and the welding head is greater than the longitudinal range of the horizontal fixing plate.

[0012] A further improvement of the present invention is that the sheet unit rolling device includes a horizontal base, a horizontally arranged driving roller is provided in the middle of the horizontal base, one end of the driving roller is transmission-connected to a roller driving device fixedly connected to the horizontal base through a roller transmission device, and a bearing seat D swing-connected to the horizontal base is provided at the other end, and the bearing seat D swings in a direction facing or back to the driving roller. When the bearing seat D rotates toward the driving roller to the maximum stroke, the bearing seat D is vertical and rotationally connected to the driving roller located above. When the bearing seat D rotates away from the driving roller, the bearing seat D is vertical and rotationally connected to the driving roller located above. When it reaches the maximum stroke, the bearing seat D is separated from the driving roller located above; the horizontal base is located below the driving roller and is parallel to a driven roller A, both ends of the driven roller A are rotatably connected to the horizontal base through bearing seats C, the bearing seat C is connected to the horizontal base through a roller lifting and adjusting device A, and driven rollers B arranged parallel to the driving roller are respectively provided on both sides of the driving roller on the horizontal base, both ends of the driven roller B are rotatably connected to their own bearing seats E, and the bearing seats E are movably connected to the horizontal base up and down through the roller lifting and adjusting device B.

[0013] A further improvement of the present invention is that the annular plate unit trimming device includes a horizontal base with a support device at the bottom. On the top surface of the horizontal base, there is an annular plate expanding device rotatably connected about a vertical axis. On the top surface of the horizontal base, on one side of the annular plate expanding device, there is also a cutting tool, the cutting edge of the cutting tool pointing towards the annular plate expanding device. The cutting tool is fixedly connected to a tool holder, the tool holder is vertically adjusted and connected to a tool holder lifting and adjusting device, the tool holder lifting and adjusting device is connected to a tool holder horizontal adjusting device, the tool holder horizontal adjusting device is arranged on the horizontal base, the tool holder lifting and adjusting device is arranged on the tool holder horizontal adjusting device, the tool holder is arranged on the side of the tool holder lifting and adjusting device facing the annular plate expanding device, and the rotation driving device of the annular plate expanding device is connected to the bottom of the horizontal base.

[0014] A further improvement of the present invention is that a robot A is provided on the side of the annular plate unit trimming device where the coiled material welding device is located, a robot B is provided on the side of the annular plate unit flaring device where the coiled material welding device is located, a robot C is provided on the side of the rim flanging device where the coiled material welding device is located, a robot D is provided on the side of the rim cylinder trimming device where the coiled material welding device is located, a robot E is provided on the side of the rim curling device where the coiled material welding device is located, and a robot F is provided on the side of the tire tread shaping device where the coiled material welding device is located; a turntable A is provided on the side of the robot A facing away from the robot B, a turntable B is provided between the robot A and the robot B, a turntable C is provided between the robot B and the robot C, a turntable D is provided between the robot C and the robot D, a turntable E is provided between the robot D and the robot E, a turntable F is provided between the robot E and the robot F, and a turntable G is provided on the side of the robot F facing away from the robot E.

[0015] A further improvement of the present invention is that a sheet metal unit stamping and curling device is also provided on the side of the sheet metal sawing device corresponding to the coiled material welding device.

[0016] A further improvement of the present invention is that a connecting strip unit curling device is also provided on the side of the sheet metal sawing device corresponding to the coiled material welding device.

[0017] The beneficial effects of the present invention are as follows:

[0018] First, for the processing production line of the rim blank standard parts of the present invention, through the layout of the production line of the present application and the structures of various devices, the automated production of the rim blank standard parts and the automated production of the annular connection bar units can be realized. Furthermore, a large quantity of stock for the rim blank standard parts and the annular connection bars can be achieved. When the sales department receives small-batch customized products, customized production can be carried out immediately, thereby greatly improving the production speed of small-batch customized products and reducing the production cost. Since the production speed is relatively fast, the inventory can be reduced, and the inventory cost can be further lowered.

[0019] Second, for the processing production line of the rim blank standard parts of the present invention, through the action of the sheet unit rolling device, the sheet unit can be rolled before welding, and can also be restored to a circular shape after the welding of the sheet unit and after the welding of the connection bar unit.

[0020] Third, for the processing production line of the rim blank standard parts of the present invention, by making the axial lengths of the driving roller, the driven roller A, and the driven roller B of the sheet unit rolling device greater than the width of the sheet unit or the axial length of the annular sheet unit or the axial length of the annular connection bar unit, the sheet unit rolling device can also roll multiple sheet units simultaneously or restore multiple annular sheet units or multiple annular connection bar units to a circular shape simultaneously, further improving the production efficiency.

[0021] Fourth, for the processing production line of the rim blank standard parts of the present invention, through the action of the coiled material welding device, the continuous automated welding of the sheet unit or the connection bar unit can be realized, and the weld beads after welding can be automatically removed, improving the production efficiency and ensuring the surface quality of the annular sheet unit after welding.

[0022] Fifth, for the processing production line of the rim blank standard parts of the present invention, through the action of the annular sheet unit correction device, the two end parts of the annular sheet unit can be trimmed and processed to meet the processing requirements of the axial length of the rim blank standard parts, thereby ensuring the continuous production of multiple subsequent processes of the annular sheet unit.

[0023] Sixth, for the processing production line of the rim blank standard parts of the present invention, through the annular sheet unit fixture of the robot, not only can the rapid clamping and rapid separation of the annular sheet unit be ensured, but also the fixed effect after clamping can be guaranteed, avoiding the sliding between the annular sheet unit and the annular sheet unit fixture during the clamping and turnover process, which may affect the picking and placing of the annular sheet unit by the robot.

[0024] Seventhly, in the processing production line of the rim blank standard parts of the present invention, through the camera provided by the annular plate unit fixture and the structure of the driving pinch roller and the driven pinch roller for driving the annular plate unit to rotate around the axis in cooperation with the camera, it is possible to automatically identify and judge the annular plate unit while it rotates after each process is completed since the barrel trimming process begins, avoiding the production of defective products in the next process, reducing production costs and delaying equipment wear, and preventing equipment damage and even production accidents due to the processing of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a top view schematic diagram of the processing production line of the rim blank standard parts.

[0026] Figure 2 It is an enlarged top view schematic diagram of the connecting bar unit curling device.

[0027] Figure 3 It is an enlarged top view schematic diagram of the curled material welding device.

[0028] Figure 4 It is an enlarged right view schematic diagram of the curled material welding device.

[0029] Figure 5 It is an enlarged top view schematic diagram of the rim barrel trimming device.

[0030] Figure 6 It is an enlarged front view schematic diagram of the rim barrel trimming device.

[0031] Figure 7 It is an enlarged top view schematic diagram of the annular plate unit fixture of the robot.

[0032] Figure 8 It is an enlarged front view schematic diagram of the annular plate unit fixture of the robot.

[0033] Figure 9 It is an enlarged left view schematic diagram of the annular plate unit fixture of the robot with the left clamping plate hidden.

[0034] Figure 10 It is an enlarged front view sectional schematic diagram of the pinch roller rotating roller of the robot. DETAILED DESCRIPTION OF THE INVENTION

[0035] Combined with Figures 1 to 10It can be known that the standard part processing production line of the rim blank includes, in sequence along the material production and conveying direction, a sheet sawing device 1, a sheet unit rolling device 5, an annular plate unit trimming device 6, an annular plate unit flaring device 7, a wheel flange flanging device 8, a rim cylinder trimming device 9, a wheel flange curling device 10, and a tire mounting surface shaping device 11. A curling material welding device 4 is also provided on one side of the sheet unit rolling device 5. Between the annular plate unit trimming device 6 and the annular plate unit flaring device 7, between the annular plate unit flaring device 7 and the wheel flange flanging device 8, between the wheel flange flanging device 8 and the rim cylinder trimming device 9, between the rim cylinder trimming device 9 and the wheel flange curling device 10, and between the wheel flange curling device 10 and the tire mounting surface shaping device 11, each robot turns around the annular unit plate, and the robot is located on the side of the curling material welding device 4 corresponding to the sheet unit rolling device 5.

[0036] The sheet sawing device 1 includes a sawing table 30. A sheet loading rack 33 is fixedly connected to one side of the sawing table 30 away from the sheet unit rolling device 5. A strip-shaped hole is provided on the top surface of the sawing table 30 along a direction perpendicular to the sheet loading rack 33. A vertically arranged saw blade is rotatably connected inside the sawing table 30. The top of the saw blade extends upward through the strip-shaped hole and reciprocates along the strip-shaped hole. A horizontal cross bar 31 is fixedly connected above the top surface of the sawing table 30 corresponding to the strip-shaped hole. Horizontal pressing strips are respectively provided at the bottom of the horizontal cross bar 31 corresponding to both sides of the strip-shaped hole. The horizontal pressing strips are vertically movably connected to the horizontal cross bar 31 through pneumatic piston cylinders 32.

[0037] The curled sheet unit welding device 4 includes a base frame 58, and the two opposite side walls of the base frame 58 are open to form a frame inner cavity 77. The top of the base frame 58 includes longitudinal horizontal push rods 59 arranged in parallel and symmetrically on both sides, and a longitudinal strip-shaped through hole 63 is formed between the longitudinal horizontal push rods 59. The longitudinal horizontal push rods 59 are also provided with a weld scar removal device 60 and a welding device 62 driven by a longitudinal drive device A65 to reciprocate along the longitudinal horizontal direction. The weld scar removal device 60 and the welding device 62 are fixedly connected, and a milling cutter and a welding head are respectively provided at the bottom of the weld scar removal device 60 and the bottom of the welding device 62 corresponding to the position of the strip-shaped through hole 63. The milling cutter corresponds to being located in the strip-shaped through hole 63, and is horizontally rotated around a vertical axis by a milling cutter driving motor, and the milling cutter driving motor is connected to the weld scar removal device 60 up and down through a milling cutter lifting device. The welding head is movably connected, and is located in the strip through hole 63. It is movably connected to the welding device 62 up and down through the welding head lifting device. The longitudinal driving device A65 is fixedly connected to the base frame 58. The base frame 58 is also movably connected with a longitudinally arranged horizontal fixing plate 61. The horizontal fixing plate 61 reciprocates horizontally relative to the base frame 58 through the transverse driving device A69. The transverse driving device A69 is fixedly connected to the base frame 58. When the horizontal fixing plate 61 moves horizontally to the maximum stroke on one side, the horizontal fixing plate 61 is located outside the base frame 58. When the horizontal fixing plate 61 moves horizontally to the maximum stroke on the other side, the horizontal fixing plate 61 is located directly below the strip through hole 63 and corresponds to the milling cutter and the welding head. The longitudinal movement range of the milling cutter and the welding head is greater than the longitudinal range of the horizontal fixing plate 61.

[0038] The horizontal top rod 59 is rotatably connected to a longitudinal screw rod A64 which is transmission-connected to the longitudinal driving device A65. The weld scar device 60 and the welding device 62 are respectively provided with a nut pair A matching the longitudinal screw rod A64. The two ends of the horizontal top rod 59 corresponding to the longitudinal screw rod A64 are rotatably connected to the longitudinal screw rod A64 through a bearing seat A66.

[0039] The horizontal fixed plate 61 reciprocates along the horizontal transverse frame 79 through the horizontal transverse moving frame 68. The horizontal transverse frame 79 is fixedly connected to the inner bottom of the base frame 58. The top surface of the horizontal transverse frame 79 is rotatably connected to a horizontal screw rod A80. The two ends of the horizontal screw rod A80 are rotatably connected to the horizontal transverse frame 79 through bearing seats B70 respectively. The bottom of the horizontal fixed plate 61 is fixedly connected to the horizontal transverse moving frame 68. The horizontal transverse moving frame 68 is provided with a nut pair B matching the horizontal screw rod A80. The horizontal drive device A69 is transmission-connected to one end of the horizontal screw rod A80.

[0040] The horizontal fixing plate 61 is fixedly connected to the top surface of the horizontal connecting pad 67. The transverse moving frame 68 is fixedly connected to one end of the bottom of the horizontal connecting pad 67. A support block 73 is fixed on the side wall of the base frame 58 on the side away from the transverse moving frame 68 of the horizontal connecting pad 67. When the horizontal fixing plate 61 moves to the position of the longitudinal strip-shaped through hole 63, the bottom surface of the horizontal connecting pad 67 at the position of the support block 73 fits against the bottom surface of the horizontal fixing plate 61 at the longitudinal strip-shaped through hole 63 position.

[0041] The bottom of the horizontal connecting pad 67 is fixedly connected with a longitudinal vertical rib 71. The longitudinal vertical rib 71 extends to be fixedly connected with the transverse moving frame 68 and extends downward to the bottom of the side wall of the transverse moving frame 68 facing the horizontal connecting pad 67. The end surface of the longitudinal vertical rib 71 away from the transverse moving frame 68 is an inclined surface that slopes upward along the direction away from the transverse moving frame 68. And the connection position of the longitudinal vertical rib 71 and the horizontal connecting pad 67 is on the side of the horizontal fixing plate 61 facing away from the transverse moving frame 68. On the bottom of the horizontal connecting pad 67, a plurality of transverse vertical ribs are symmetrically fixed at equal intervals corresponding to both side end faces of the longitudinal vertical rib 71. The transverse vertical ribs are fixedly connected with the longitudinal vertical rib 71.

[0042] A cushion block 72 is fixedly arranged at the bottom of the horizontal connecting pad 67 corresponding to the support block 73.

[0043] On the bottom surface of the longitudinal horizontal ejector rod 59, on both sides of the strip-shaped through hole 63, pressing plates 74 are respectively symmetrically arranged. The pressing plates 74 are vertically movably connected with the longitudinal horizontal ejector rod 59 through a pressing plate lifting device 75. The pressing plates 74 are at the middle position of the horizontal fixing plate 61 longitudinally.

[0044] On one side of the strip-shaped through hole 63, a plurality of pressing plates 74 are arranged. The pressing plates 74 are evenly distributed within the range of the horizontal fixing plate 61 along the length direction of the strip-shaped through hole 63.

[0045] Locking clamp blocks 76 for fixing both ends of the material plate are respectively arranged at the longitudinal two ends of the top surface of the horizontal fixing plate 61.

[0046] A strip-shaped marking groove (not shown in the specification drawings) is further arranged on the top surface of the horizontal fixing plate 61. When the horizontal fixing plate 61 moves to the position of the strip-shaped through hole 63, the marking groove is directly below the walking track of the welding head. The joint positions of both ends of the sheet metal unit fixedly connected to the horizontal fixing plate 61 correspond to the marking groove.

[0047] The length of the marking groove is greater than the welding length of the sheet metal unit.

[0048] The sheet unit rolling device 5 includes a horizontal base 34, a horizontally arranged driving roller 35 is provided in the middle of the horizontal base 34, one end of the driving roller 35 is transmission-connected to a roller driving device 39 fixedly connected to the horizontal base 34 through a roller transmission device, and a bearing seat D37 swingingly connected to the horizontal base 34 is provided at the other end, and the bearing seat D37 swings in a direction facing or away from the driving roller 35. When the bearing seat D37 rotates to the maximum stroke facing the driving roller 35, the bearing seat D37 is vertical and rotationally connected to the driving roller 35 located above. When the bearing seat D37 rotates to the maximum stroke facing away from the driving roller 35, the bearing seat D37 is vertical and rotationally connected to the driving roller 35 located above. When the driving roller 35 is at the upper end, the bearing seat D37 is separated from the driving roller 35 located above; the horizontal base 34 is located below the driving roller 35 and is provided with a driven roller A in parallel, and the two ends of the driven roller A are rotatably connected to the horizontal base 34 through bearing seats C respectively, and the bearing seat C is connected to the horizontal base 34 through a roller lifting and adjusting device A, and the horizontal base 34 is provided with driven rollers B36 arranged parallel to the driving roller 35 on both sides of the driving roller 35, and the two ends of the driven roller B36 are rotatably connected to their own bearing seats E38 respectively, and the bearing seats E38 are movably connected to the horizontal base 34 up and down through the roller lifting and adjusting device B.

[0049] A lever 40 is provided on the top surface of the horizontal base 34 and is capable of reciprocating horizontal movement along an axial direction parallel to the driving roller 35. One end of the lever 40 extends to the position of the driving roller 35 located above. The other end of the lever 40 is fixedly connected to a nut pair C. The nut pair C is transmission-connected to a transverse screw rod B41 provided on the top surface of the horizontal base 34. Both ends of the transverse screw rod B41 are rotationally connected to the horizontal base 34 through a bearing seat F. One end of the transverse screw rod B41 is driven and connected by a lever driving device fixedly connected to the horizontal base 34. When the transverse screw rod B41 drives the lever 40 to move to the maximum stroke facing the roller driving device 39 through the nut pair C, the lever 40 fits with the roller driving device 39. When the transverse screw rod B41 drives the lever 40 to move to the maximum stroke facing away from the roller driving device 39 through the nut pair C, the lever 40 is separated from the driving roller 35 located above.

[0050] The trimming device 6 for the annular plate unit includes a horizontal base 81 with a support device 107 provided at the bottom. On the top surface of the horizontal base 81, there is an annular plate expansion device 82 rotatably connected about a vertical axis. On the top surface of the horizontal base 81, on one side of the annular plate expansion device 82, there is also a cutting tool 101. The cutting edge of the cutting tool 101 points to the annular plate expansion device 82. The cutting tool 101 is fixedly connected to a tool holder 100. The tool holder 100 is vertically adjusted and connected to a tool holder lifting adjustment device. The tool holder lifting adjustment device is connected to a tool holder horizontal adjustment device. The tool holder horizontal adjustment device is provided on the horizontal base 81, and the tool holder lifting adjustment device is provided on the tool holder horizontal adjustment device. The tool holder 100 is provided on the side of the tool holder lifting adjustment device facing the annular plate expansion device 82. The rotation driving device 83 of the annular plate expansion device 82 is connected to the bottom of the horizontal base 81.

[0051] The annular plate expansion device 82 includes a vertical sleeve 89 fixedly connected to the top surface of the horizontal base 81. The output shaft 93 of the rotation driving device 83 passes upward through the horizontal base 81 and extends into the vertical sleeve 89, and then extends upward out of the vertical sleeve 89 and contacts a plurality of expansion unit blocks evenly distributed coaxially. The expansion unit block includes an annular plate expansion unit 85 and an output shaft contact unit 86 fixedly coaxially through a connecting vertical plate 87. The annular plate expansion unit 85 is composed of a plurality of petal-shaped structures evenly divided from the side wall of the same cylinder. The output shaft contact unit 86 is composed of a plurality of petal-shaped structures evenly divided from the side wall of the same cone. The upper side wall of the output shaft 93 is a cone structure that matches and contacts the output shaft contact unit 86. The diameter of the top of the cone is larger than the diameter of the bottom of the cone. The inner diameter of the vertical sleeve 89 is greater than or equal to the maximum diameter of the cone. The rotation driving device 83 is vertically movably connected to the horizontal base 81 through a lifting driving device A91 fixed to the bottom surface of the horizontal base 81.

[0052] The lifting driving device A91 is a lifting cylinder and is fixedly connected to the bottom of the horizontal base 81 through a connecting frame 98. The end of the telescopic rod 92 of the lifting driving device A91 is fixedly connected to the rotation driving device 83.

[0053] A cone sleeve 88 is coaxially sleeved and fixed on the top side wall of the output shaft 93. The shaft hole of the cone sleeve 88 matches the connecting shaft rod 94 coaxially provided at the top end of the output shaft 93. The boss formed around the connecting shaft rod 94 at the top end of the output shaft 93 is the limiting boss of the cone sleeve 88. The end of the connecting shaft rod 94 facing away from the output shaft 93 is detachably fixedly connected with a fastening pressing plate 95 through a fastening bolt 99. The fastening pressing plate 95 axially limits and fixedly connects the cone sleeve 88 to the limiting boss.

[0054] The top pipe opening of the vertical sleeve 89 is provided with an annular horizontal plate 90 outwardly, and the bottom edges of the connecting vertical plate 87 and the annular plate expansion unit 85 are flush and in contact with the top surface of the annular horizontal plate 90.

[0055] On the top surface of the horizontal base 81, there are multiple horizontal support plates 84 evenly distributed on the outside of the vertical sleeve 89 and centered on the axis of the vertical sleeve 89. The horizontal support plates 84 are connected to the horizontal base 81 through a support frame 96. The top surface of the horizontal support plate 84 is lower than the bottom of the annular plate expansion device 82. The distance between the edge of the side of the horizontal support plate 84 facing away from the vertical sleeve 89 and the axis of the vertical sleeve 89 is greater than the outer diameter of the annular plate unit.

[0056] The support frame 96 is connected to the horizontal support plate 84 through a lifting drive device B97. The lifting drive device B97 is fixedly connected to the support frame 96 and drives the horizontal support plate 84 to be movably connected up and down. When the horizontal support plate 84 moves upward to the maximum stroke, the top surface of the horizontal support plate 84 is flush and lower than the bottom of the annular plate expansion device 82.

[0057] The tool holder horizontal adjustment device includes a horizontal seat 103, in which a horizontal screw is rotatably connected, and the axial direction of the horizontal screw is the same as that of the blade of the cutting tool 101. One end of the horizontal seat 103 is fixedly connected to a translation drive device 105 for driving the horizontal screw to rotate. The tool holder lifting and adjusting device includes a lifting seat 104, and the bottom of the lifting seat 104 is fixedly connected to a nut pair D that is transmission-connected to the horizontal screw and reciprocates along the axial direction of the horizontal screw. A vertical screw is rotatably connected to the lifting seat 104, and the top of the lifting seat 104 is fixedly connected to a lifting drive device C106 that drives the vertical screw to rotate. The tool holder 100 is fixed with a matching nut pair E corresponding to the vertical screw, and reciprocates along the axial direction of the vertical screw.

[0058] The cutting knife 101 is fixedly connected to the knife holder 100 via a knife seat 102 . The cutting knife 101 can be fixedly connected to the knife seat 102 in an adjustably manner along the direction in which the cutting edge of the cutting knife 101 points.

[0059] Two cutting knives 101 are fixedly connected to the tool holder 100 . The cutting knives 101 are fixed to the tool holder 100 through respective tool seats 102 so as to be adjustable up and down. The cutting knives 101 are located in the same vertical plane.

[0060] Vertical baffles 108 are fixedly provided on the edge of the top surface of the horizontal base 81 close to the annular plate expansion device 82, the edge close to the cutting blade 101, and the edge facing away from the robot.

[0061] On the side where the annular plate unit trimming device 6 is located, there is a robot A12. On the side where the annular plate unit flaring device 7 is located, there is a robot B14. On the side where the rim flanging device 8 is located, there is a robot C16. On the side where the rim barrel trimming device 9 is located, there is a robot D18. On the side where the rim curling device 10 is located, there is a robot E20. On the side where the tire tread shaping device 11 is located, there is a robot F22. On the side of the robot A12 facing away from the robot B14, there is a turntable A. Between the robot A12 and the robot B14, there is a turntable B13. Between the robot B14 and the robot C16, there is a turntable C15. Between the robot C16 and the robot D18, there is a turntable D17. Between the robot D18 and the robot E20, there is a turntable E19. Between the robot E20 and the robot F22, there is a turntable F21. On the side of the robot F22 facing away from the robot E20, there is a turntable G23.

[0062] At the end parts of the robot A12, the robot B14, the robot C16, the robot D18, the robot E20 and the robot F22, there are respectively annular plate unit clamps. The annular plate unit clamp includes a clamp substrate 109. At both ends of the length direction of one end face of the clamp substrate 109, there are symmetrically arranged clamping plates 110. The clamping plates 110 move towards or away from each other simultaneously through a clamping plate driving device 114. The clamping plate driving device 114 is fixedly connected to the end face of the clamp substrate 109 on the side facing away from the clamping plates 110. On the end face of the clamp substrate 109 on the side facing away from the clamping plates 110, there is also fixedly connected a connection head 118 for connecting with the robot. On the end faces of the clamping plates 110 facing each other, there are symmetrically arranged a driving pinch roller 111 and a driven pinch roller 112. The axis of the driving pinch roller 111 and the axis of the driven pinch roller 112 are parallel and perpendicular to the plane formed by the clamp substrate 109 and the clamping plates 110. On the end face of the clamp substrate 109 facing the side where the clamping plates 110 are located, there is also fixedly installed a camera 119.

[0063] The clamping plate driving device 114 is fixedly connected to the fixture substrate 109 through a "C"-shaped plate 117. The fixture substrate 109 passes through the "C"-shaped plate 117. The clamping plate driving device 114 is fixedly connected between the vertical plate A 120 of the "C"-shaped plate 117 and the fixture substrate 109. The horizontal top plate and the horizontal bottom plate of the "C"-shaped plate 117 are respectively fixedly connected to the top surface and the bottom surface of the fixture substrate 109, and the horizontal top plate and the horizontal bottom plate of the "C"-shaped plate 117 extend towards the side where the clamping plate 110 is located. A vertical plate B 121 is fixedly connected between the horizontal top plate and the horizontal bottom plate of the "C"-shaped plate 117 on the side of the fixture substrate 109 facing the clamping plate 110. The camera 119 is fixedly connected to the end surface of the vertical plate B 121 facing away from the fixture substrate 109 through a connection substrate 125. The connector 118 is fixedly connected to the end surface of the vertical plate A 120 facing away from the fixture substrate 109.

[0064] A transmission gear 115 in transmission connection with the clamping plate driving device 114 is provided on one end surface of the fixture substrate 109 facing the vertical plate B 121. A transmission cross bar 113 parallel to the fixture substrate 109 is provided at one end of the clamping plate 110 corresponding to the fixture substrate 109. The transmission cross bar 113 of one clamping plate 110 is located along the upper edge of the fixture substrate 109, and the transmission cross bar 113 of the other clamping plate 110 is located along the lower edge of the fixture substrate 109. The transmission gear 115 is located between the two transmission cross bars 113. Rack teeth 116 in meshing transmission with the transmission gear 115 are provided on the opposite end surfaces of the transmission cross bars 113. One end of the transmission cross bar 113 is fixed to the corresponding clamping plate 110, and the other end continues to extend towards the other clamping plate 110. When the clamping plate 110 moves away to the maximum stroke, the transmission cross bars 113 are still in meshing with the transmission gear 115.

[0065] Bar-shaped guide rail grooves 133 are respectively provided on the fixture substrate 109 corresponding to the transmission cross bars 113 along the moving direction of the transmission cross bars 113. Convex bar guides matching the bar-shaped track grooves 113 are provided on the end surfaces of the transmission cross bars 113 facing the fixture substrate 109. The end surface of the transmission gear 115 facing away from the fixture substrate 109 is flush with the end surface of the transmission cross bar 113 facing away from the fixture substrate 109, and both are in contact with the vertical plate B 121. The bar-shaped guide rail grooves 133 are dovetail grooves.

[0066] The clamping plate driving device 114 is in transmission with the transmission gear 115 through a reduction drive box 124. The clamping plate driving device 114 is fixedly connected to the fixture substrate 109 through the reduction drive box 124.

[0067] The horizontal top plate and the horizontal bottom plate of the "C"-shaped plate 117 are respectively provided with vertical plates C122 facing each other. There is a gap between the vertical plates C122. The camera 119 extends out from the gap between the vertical plates C122. The end faces of the vertical plates C122 facing away from the fixture substrate 109 are also fixedly connected with an annular lamp 123. The annular lamp 123 is coaxially arranged with the camera 119, and the irradiation direction of the annular lamp 123 is the same as the imaging direction of the camera.

[0068] Both the active pinch roller 111 and the driven pinch roller 112 include a pinch roller shaft rod 138. The pinch roller shaft rod 138 is connected to the pinch plate 110 through a group of parallel connecting plates 128. One end of the connecting plate 128 is fixedly connected to the pinch plate 110, and the other end of the connecting plate 128 is respectively rotatably connected to the pinch roller shaft rod 138. The two ends of the pinch roller shaft rod 138 respectively pass through the corresponding connecting plates 128 upward and downward. The pinch roller shaft rod 138 is coaxially fixedly connected with a pinch roller runner 127 at the position corresponding to between the connecting plates 128. The parts of the pinch roller shaft rod 138 corresponding to extending out of the connecting plates 128 are respectively coaxially fixedly connected with pinch roller rolls 126. The diameters of the pinch roller runner 127 and the pinch roller rolls 126 are equal. A plurality of anti-slip convex rings 151 are equidistantly distributed along the axial direction on the circumferential side wall of the pinch roller roll 126. The anti-slip convex rings 151 are coaxially arranged with the pinch roller roll 126. The circumferential side wall surface of the pinch roller runner 127 is provided with anti-slip lines; A runner driving device 134 is fixedly connected between the connecting plates 128 corresponding to the active pinch roller 111. The runner driving device 134 is in transmission connection with the pinch roller shaft rod 138.

[0069] A pinch roller roll transmission wheel B136 is coaxially fixedly connected to the runner output shaft of the runner driving device 134. A pinch roller roll transmission wheel A135 is coaxially fixedly connected to the pinch roller shaft rod 138. The pinch roller roll transmission wheel A135 is in transmission connection with the pinch roller roll transmission wheel B136.

[0070] A pinch roller roll transmission wheel C137 which is in transmission connection with both the pinch roller roll transmission wheel A135 and the pinch roller roll transmission wheel B136 at the same time is rotatably connected to the connecting plate 128.

[0071] The pinch roller roll 126 includes a cylindrical groove 140 coaxially fixedly connected to one end of the pinch roller shaft rod 138 extending out of the connecting plate 128. The notch of the cylindrical groove 140 faces away from the pinch roller shaft rod 138. The circumferential outer side wall of the cylindrical groove 140 is coaxially covered and fixed with an anti-slip cushion layer 141. A plurality of anti-slip convex rings 151 are equidistantly distributed along the axial direction on the circumferential outer side wall of the anti-slip cushion layer 141.

[0072] On the circumferential outer side wall of the anti-slip cushion layer 141, a plurality of annular grooves 150 coaxial with the anti-slip cushion layer 141 are provided at equal intervals along the axial direction. On the groove wall of the annular groove 150 on the side away from the pinch roll shaft rod 138, an annular strip is coaxially provided. The free end of the annular strip is connected to the bottom of the annular groove 150 through an annular elastic piece 152. One side edge of the annular elastic piece 152 is fixedly connected to the annular strip, and the other side edge of the annular elastic piece 152 is fixedly connected to the bottom of the annular groove 150. The annular elastic piece 152 pushes the annular strip out of the notch of the annular groove 150 to form an anti-slip convex ring 151.

[0073] Corresponding to the notch of the cylindrical groove 140, the anti-slip cushion layer 141 extends inwards to form an annular flange 145. The annular flange 145 extends inwards to the inner side wall 142 of the cylindrical groove 140 and is provided with a connecting sleeve 146 matching the inner side wall 142 of the groove. A plug body 129 is further provided in the cylindrical groove 140. The inner wall of the lumen 148 of the connecting sleeve 146 matches the side wall of the plug body 129, and the plug body 129 clamps and fixedly connects the connecting sleeve 146 to the inner side wall 142 of the groove.

[0074] At the center of the bottom of the cylindrical groove 140, a central screw 143 is provided. At the center of the end of the plug body 129 extending into the lumen 148 of the connecting sleeve 146, a threaded hole 149 matching the central screw 143 is provided. The inner wall of the lumen 148 of the connecting sleeve 146 is a conical hole. The circumferential side wall of the plug body 129 on the side corresponding to the threaded hole 149 is a conical arc surface 147 matching the conical hole, and the conical arc surface 147 and the conical hole are in interference fit.

[0075] On the side of the connecting plate 128 facing away from the pinch roll runner 127, a "Z"-shaped pinch roll runner limiting frame 130 is fixedly connected. One end of the pinch roll runner limiting frame 130 is provided with a mounting plate for fixing to the connecting plate 128. The mounting plate extends towards the side away from the corresponding pinch roll runner 126. The other end of the pinch roll runner limiting frame 130 is provided with a support block 131 extending towards the side of the pinch roll runner 126. The support block 131 is provided with a guiding groove 139 corresponding to the plug body 129. On the circumferential surface of the plug body 129, at the end edge away from the pinch roll runner 126, an operation convex ring 153 is coaxially provided. The guiding groove 139 matches the operation convex ring 153 and penetrates through the end faces of the support block 131 facing and facing away from the connecting plate 128. When the plug body 129 fixes the connecting sleeve 146 to the inner side wall 142 of the groove, the operation convex ring 153 is located in the guiding groove 139.

[0076] On the side of the pinch roll runner limiting frame 130 facing the mounting plate, a rib plate 132 is further provided.

[0077] The circumferential outer wall surface of the cylindrical groove 140 is evenly spaced with an annular corrugated structure 144 formed by annular protrusions and annular depressions, and the contact surface of the anti-slip cushion layer 141 with the circumferential outer wall of the cylindrical groove 140 is also correspondingly provided with a matching annular corrugated structure 144.

[0078] The pinch roller shaft rod 138 is rotatably connected to the connecting plate 128 through a bearing 154.

[0079] Circular plate unit positioning grooves are provided at the centers of the top surfaces of the turntable A, turntable B13, turntable C15, turntable D17, turntable E19, turntable F21, and turntable G23.

[0080] A defective product placement table A24 is provided on one side of the robot A12 facing away from the annular plate unit trimming device 6, a defective product placement table B25 is provided on one side of the robot B14 facing away from the annular plate unit flaring device 7, a defective product placement table C26 is provided on one side of the robot C16 facing away from the rim flanging device 8, a defective product placement table D27 is provided on one side of the robot D18 facing away from the rim cylinder trimming device 9, a defective product placement table E28 is provided on one side of the robot E20 facing away from the rim curling device 10, and a defective product placement table F29 is provided on one side of the robot F22 facing away from the tread shaping device 11.

[0081] A sheet metal unit stamping and curling device 3 is further provided on one side of the sheet metal sawing device 1 corresponding to the side of the curled material welding device 4.

[0082] A connecting strip unit curling device 2 is further provided on one side of the sheet metal sawing device 1 corresponding to the side of the curled material welding device 4.

[0083] The connecting strip unit curling device 2 includes a base 42, one side of the top surface of the base 42 is fixedly connected to a guide inclined plate 43, a row of curling guide pressing wheels is provided on the top surface of the base 42, located on one side of the guide inclined plate 43, the curling guide pressing wheels include a plurality of curling guide pressing wheels A45 arranged in a row and a curling guide pressing wheel B46 located at one end of the row where the curling guide pressing wheel A45 is located, and a row of curling guide base wheels 44 is also provided on the base 42, located between the guide inclined plate 43 and the curling guide pressing wheel The distance between the curling guide base wheel 44 corresponding to one end of the curling guide pressure wheel B46 and the adjacent curling guide base wheel 44 is greater than the distance between the other two adjacent curling guide base wheels 44, and the distances between the other two adjacent curling guide base wheels 44 are equal, and the curling guide base wheel 44 corresponding to the curling guide pressure wheel B46 is located between the curling guide pressure wheel B46 and the curling guide pressure wheel A45 adjacent to the curling guide pressure wheel B46, and the curling guide pressure wheel A45 surface The line connecting the curling guide base wheel 44 to the curling guide base wheel 44 is parallel to the line connecting the curling guide base wheel 44 to the curling guide pressure wheel A45, and the distance between the line connecting the curling guide pressure wheel B46 to the curling guide base wheel 44 and the line connecting the curling guide pressure wheel A45 to the curling guide base wheel 44 is smaller than the distance between the line connecting the curling guide pressure wheel A45 to the curling guide base wheel 44 and the line connecting the curling guide base wheel 44 to the curling guide pressure wheel A45. The curling guide pressure wheel A45 is tilted upward in the arrangement direction away from the curling guide pressure wheel B46, the lowest point of the guide inclined plate 43 is lower than the curling guide pressure wheel B46, and the highest point of the guide inclined plate 43 is higher than the curling guide pressure wheel A45, the curling guide base wheel 44, the curling guide pressure wheel A45 and the curling guide pressure wheel B46 all rotate horizontally around the vertical axis, the curling guide base wheel 44 is connected to the base wheel driving device through the base wheel transmission device, and the curling guide base wheel 44 rotates at the same speed and in the same direction.

[0084] The guide inclined plate 43 extends out of the base 42 corresponding to one side edge of the curling guide pressing wheel B46, and the guide inclined plate 43 extends away from the side of the curling guide pressing wheel B46 to the position of the curling guide pressing wheel A45 farthest from the curling guide pressing wheel B46.

[0085] The axes of the curling guide pressing wheel A45 and the curling guide pressing wheel B46 are fixedly connected to the top surface of the slider 47, and the slider 47 is adjusted in the corresponding sliding groove 48 of the base 42 along the direction facing or facing away from the curling guide base wheel 44.

[0086] On the side wall of the base 42 close to the side where the curling guide pressure wheel A45 is located, and at the position of the chute 48 corresponding to the curling guide pressure wheel A45, adjusting screws A51 are respectively connected by threads. One end of each adjusting screw A51 extends into the chute 48 and is rotatably connected to the slider 47 of the curling guide pressure wheel A45. On the side wall of the base 42 close to the side where the curling guide pressure wheel B46 is located, and at the position of the chute 48 corresponding to the curling guide pressure wheel B46, a piston cylinder 54 is fixedly provided. The end of the piston rod 55 of the piston cylinder 54 extends into the chute 48 of the curling guide pressure wheel B46 and is fixedly connected to the slider 47 of the curling guide pressure wheel 46.

[0087] The slider 47 is fixedly connected with a connecting block 50. The adjusting screw A51 is rotatably connected to the connecting block 50, and the piston rod 55 is fixedly connected to the connecting block 50.

[0088] One end of the adjusting screw A51 located outside the base 42 is coaxially and fixedly connected with a handwheel 52. One end of the piston rod 55 facing away from the curling guide pressure wheel B46 extends out of the piston cylinder 54 to form an adjusting screw B56. An adjusting nut 57 is provided on the adjusting screw B56. When the piston rod 55 drives the curling guide pressure wheel B46 to move towards the curling guide base wheel 44 to the maximum stroke, the adjusting nut 57 contacts and limits the piston cylinder 54.

[0089] The part of the adjusting screw A51 extending into the chute 48 is connected with a locking nut 53. When the adjusting screw A51 adjusts the slider 47 to the specified position, the locking nut 53 is screwed and moved through the adjusting screw A51 to fit and fix with the connecting block 50.

[0090] On the two opposite side walls of the chute 48, slide rails 49 are respectively provided. Corresponding to the slide rails 49, matching track grooves are provided on the two side walls of the slider 47. The slider 47 moves along the chute 48 through the track grooves and the slide rails 49.

[0091] The connecting strip unit curling device 2 is located on the side of the sheet unit stamping and curling device 3 facing away from the curling material welding device 4.

[0092] When the standard parts of the rim blank are produced in this application, first place the sheet metal along the length direction of the sheet metal loading rack 33 of the sheet metal sawing device 1, and then fix and connect a sheet metal limiting device on the side of the sawing table 30 facing away from the sheet metal loading rack 33 according to the size of the standard parts of the rim blank to be produced. The distance between the sheet metal limiting device and the saw blade is equal to the circumference of the standard parts of the rim blank to be produced; then move the sheet metal towards the sawing table 30 until it is in limit contact with the sheet metal limiting device; then the pneumatic piston cylinders 32 on the horizontal crossbars 31 drive the horizontal pressing strips to move downwards respectively, so that the horizontal pressing strips press and fix the sheet metal on both sides of the saw blade respectively; finally, the saw blade is started and moves from one side of the sawing table 30 to the other side along the strip-shaped hole, and then the sheet metal unit is sawed off from the sheet metal, and then the saw blade returns to the starting position, and the piston rod 32 is started to drive the horizontal pressing strip to move upwards to the maximum stroke. At this time, the sawed-off sheet metal unit is transferred to the next process, and the above actions are repeated for the sheet metal to continue cutting the sheet metal.

[0093] The cut sheet metal can be processed into a structure similar to that processed before welding in step S4 described in the specification and the specification drawings of the patent document with the application number 202111230454.4 through the sheet metal unit rolling device 5 or the sheet metal unit stamping and curling device 3, that is, process the sheet metal unit into a similar ring structure at the joints of both ends, and there are flanges at the two ends of the sheet metal unit located in the same plane, which is convenient for the next welding process.

[0094] When the sheet unit rolling and bending device 5 processes the sheet unit, the lever 40 is moved to one side of the roller driving device 39, and the bearing block D37 is swung upward to be connected to the driving roller 35; then the driven roller A is adjusted by the roller lifting and adjusting device A to have a vertical distance from the driving roller 35 equal to the thickness of the sheet unit, and the driven roller B36 is adjusted by the roller lifting and adjusting device B to be flush with the driven roller A; then the roller driving device 39 is started, and one end of the sheet unit is placed on the driven roller B36, and the sheet unit is passed under the driving roller 35 in the order of the driven roller B36, the driven roller A, and the other driven roller B36; when a flange needs to be turned out at one end of the sheet unit, the driven roller B36 on the side far from the feeding end of the sheet unit rises under the action of the roller lifting and adjusting device B, causing a flange to be formed at the end of the sheet unit passing through the driven roller B36, and the angle between the flange and the sheet unit is a right angle or an obtuse angle; when the end flange of one end of the sheet unit is completed, then the driven roller B36 moves downward under the action of the roller lifting and adjusting device B, and the sheet unit is rolled and bent; when the other end of the sheet unit passes through the driven roller B36 on the side far from the feeding end of the sheet unit, the corresponding roller lifting and adjusting device B drives the driven roller B36 to rise again, and another flange corresponding to the previous flange is formed at the end of the sheet unit passing through the driven roller B36, and this flange and the previous flange are in the same plane; finally, the bearing block D37 swings to be separated from the driving roller 35, and then the lever 40 pushes out the sheet unit that has completed the rolling and bending process and is sleeved on the driving roller 35 along the direction of the driving roller 35 from the end corresponding to the bearing block D37.

[0095] When the sheet unit stamping and curling device 3 processes the sheet unit, the steps S1 - S3 described in the specification and the specification drawings of the patent document with the application number 202111230454.4 are used to stamp and curl the sheet unit into shape.

[0096] After the sheet metal unit has completed bending and flanging operations, it is welded by the coiled material welding device 4 to form an annular unit plate. The operation of the coiled material welding device 4 during the welding of the sheet metal unit is as follows: The sheet metal unit that has completed coiling is sleeved onto the horizontal fixing plate 61 located outside the base frame 58, and the flanges at both ends of the coiled and formed sheet metal unit are respectively fixed to the horizontal fixing plate 61 after being aligned by the locking clamp blocks 76. At this time, the flanged joint of the sheet metal unit is aligned with the marking groove provided on the horizontal fixing plate 61. Then, when the transverse moving frame 68 drives the horizontal fixing plate 61 with the sheet metal unit fixed thereon to move to the position of the strip-shaped through hole 63, the flanged joint of the sheet metal unit fixed on the horizontal fixing plate 61 is located directly below the walking track of the welding head. Then, the scar removing device 60 and the welding device 62 are respectively started, and the milling cutter lifting device and the welding head lifting device respectively drive the milling cutter of the scar removing device 60 and the welding head of the welding device 62 to move downward to correspond to the top surface of the flange of the sheet metal unit fixed to the horizontal fixing plate 61 corresponding to the position of the strip-shaped through hole 63. Then, the longitudinal driving device A65 drives the scar removing device 60 and the welding device 62 to move towards the sheet metal unit simultaneously, so as to weld the flanged joint of the sheet metal unit and mill the scar after welding, so as to ensure that the welded part of the flange is flush with the rest of the flange; At this time, the finished welded annular plate unit is taken and the sheet metal unit to be welded is installed on the horizontal fixing plate 61 located on the other side of the transverse moving frame 68 and outside the base frame 58; When the welding head moves to separate from the flange of the sheet metal unit, the welding head lifting device drives the welding head to move upward to the maximum stroke and stops welding; When the milling cutter moves to separate from the sheet metal unit, the milling cutter lifting device drives the milling cutter to move upward to the maximum stroke and stops rotating; When the longitudinal driving device A65 drives the scar removing device 60 and the welding device 62 to move to the maximum stroke on one side of the sheet metal unit, the longitudinal driving device A65 then drives the scar removing device 60 and the welding device 62 back to the starting position. At the same time, the transverse moving frame 68 drives the horizontal fixing plate 61 with the finished welded annular plate unit fixed thereon to move outside the base frame 58 for taking and installing and fixing another sheet metal unit to be welded, and at the same time drives the horizontal fixing plate 61 with the sheet metal unit to be welded fixed thereon to move into the base frame 58 for welding; Thus, continuous production is achieved.

[0097] After the welding of the annular plate unit is completed, a circular restoration operation is performed on the annular plate unit through the sheet unit rolling device 5. During the operation, the dial rod 40 is moved to one side of the roller driving device 39, and the bearing block D37 is swung downward until it is separated from the driving roller 35; then the driven roller A is adjusted by the roller lifting adjustment device A to make the vertical distance between the driven roller A and the driving roller 35 equal to the thickness of the sheet unit, and the driven roller B36 is adjusted by the roller lifting adjustment device B to be flush with the driven roller A; then the annular plate unit is sleeved on the driving rotating shaft 35 from the end of the driving rotating shaft 35 corresponding to the bearing block D37, and then the bearing block D37 is swung to be connected to the driving roller 35; then the roller driving device 39 is started, and then the driven roller B36 is gradually lifted by the roller lifting adjustment device B until the annular plate unit is rolled into a cylindrical shape; finally, the roller driving device 39 stops rotating, and the driven roller A and the driven roller B36 are gradually lowered to the starting position by the roller lifting adjustment device A and the roller lifting adjustment device B respectively. Then the bearing block D37 is swung to be separated from the driving roller 35, and then the dial rod 40 pushes out the annular plate unit that has completed the rolling and circular restoration processing and is sleeved on the driving roller 35 along the direction of the driving roller 35 from the end corresponding to the bearing block D37; the operator places the annular plate unit restored by the sheet unit rolling device 5 into the annular plate positioning groove on the turnover table A.

[0098] When the annular plate unit that has completed the circular restoration process is trimmed by the annular plate unit trimming device 6, first, according to the axial dimension of the annular unit plate and the diameter dimension of the rim blank standard part to be processed, the height position of the tool holder 102 fixedly connected to the tool rest 100 is adjusted, and the height position of the tool rest 100 is adjusted by the lifting drive device C106, so that the distance between the cutting tools 101 conforms to the axial length of the annular plate unit required for the production of the rim blank standard part, and to ensure that the cutting amount of the cutting tools 101 for the annular unit plate is minimized; the translation drive device 105 and the robot A12 clamp the annular plate unit on the turntable A and transfer it to the annular plate unit trimming device 6, and place the annular plate unit on the horizontal support plate 84 after sleeving it on the annular plate expansion device 82. At this time, the output shaft 93 and the horizontal support plate 84 rise to the maximum stroke under the action of the lifting drive device A91 and the lifting drive device B97 respectively; then the lifting drive device A91 drives the output shaft 93 to move downward, thereby driving the cone sleeve 88 on the upper part of the output shaft 93 to move downward, and further driving the output shaft contact unit 86 to expand outward under the action of the cone sleeve 88, so that the annular plate expansion unit 85 contacts and expands tightly with the annular plate unit to be fixedly connected coaxially; then the lifting drive device B97 drives the horizontal support plate 84 to move downward to the maximum stroke for solidification, and at this time the horizontal support plate 84 is separated from the annular plate unit; then the rotation drive device 83 is started, and the translation drive device 105 drives the lifting seat 104 together with the cutting tools 101 to move towards the annular plate unit, and trims the edges at both ends of the annular plate unit; after the trimming of the annular plate unit is completed, the translation drive device 105 drives the cutting tools 101 to move away from the annular plate unit to the starting position; then the lifting drive device B97 drives the horizontal support plate 84 to move upward to contact the bottom edge of the annular plate unit; then the robot A12 clamps and fixes the annular plate unit still fixed to the annular plate expansion device 82, and then the lifting drive device A91 drives the output shaft 93 to move upward to the maximum stroke, and at this time the cone sleeve 88 on the upper part of the output shaft 93 is separated from the output shaft contact unit 86; finally, the robot A12 takes out the annular plate unit sleeved on the annular plate expansion unit 85 and performs turnover;During the turnover process, the quality of the outer circumferential side wall surface of the annular plate unit is observed through the camera 119 set by the annular plate unit fixture of the robot A12. When there are defects on the outer circumferential side wall surface of the annular plate unit observed by the camera 119, the robot A12 turns the annular plate unit to the defective product placement table A24 so that the operator can make a manual judgment on the annular plate unit judged as a defective product. If the operator judges that the surface defect of the annular plate unit is only oil stain or other impurities, or even a misjudgment of the camera 119, after wiping the surface of the annular plate unit clean, when there is no annular plate unit on the turnover table B13, the annular plate unit is placed in the annular plate unit positioning groove of the turnover table B13. If the operator judges that the annular plate unit actually has defects, the operator turns the defective product to the defective product treatment area for subsequent processing; when the camera 119 of the robot A12 observes that there are no defects on the outer circumferential side wall surface of the annular plate unit, the robot A12 turns the annular plate unit into the annular plate unit positioning groove of the turnover table B13 so that the subsequent processes can be carried out normally; then when there is an annular plate unit in the annular plate unit positioning groove on the turnover table A, the robot A12 turns the annular plate unit on the turnover table A to the annular plate unit trimming device 6 for processing.;

[0099] When the idle robot B14 detects that there is an annular plate unit in the annular plate unit positioning groove on the turntable B13, the robot B14 rotates the annular plate unit on the turntable B13 to the annular plate unit flaring device 7 to flare the single of the annular plate unit, so that the annular plate unit forms the structure after completing step S6 as recorded in the specification and the accompanying drawings of the patent document with the application number 202111230454.4; then the robot B14 takes out the annular plate unit that has completed the flaring process and rotates it; during the rotation process, the camera 119 set on the annular plate unit fixture of the robot B14 observes the quality of the outer circumferential side wall surface of the annular plate unit for one week. If the camera 119 observes that there are defects on the outer circumferential side wall surface of the annular plate unit, the robot B14 rotates the annular plate unit to the defective product placement table B25 so that the operator can make a manual judgment on the annular plate unit judged as a defective product. If the operator judges that the surface defect of the annular plate unit is only oil stain or other impurities, or even a misjudgment of the camera 119, after wiping the surface of the annular plate unit clean, when there is no annular plate unit on the turntable C15, the annular plate unit is placed in the annular plate unit positioning groove of the turntable C15. If the operator judges that the annular plate unit indeed has defects, the operator rotates the defective product to the defective product treatment area for subsequent processing; when the camera 119 of the robot B14 observes that there are no defects on the outer circumferential side wall surface of the annular plate unit, the robot B14 rotates the annular plate unit into the annular plate unit positioning groove of the turntable C15 for normal operation of subsequent processes; then when there is an annular plate unit in the annular plate unit positioning groove on the turntable B13 again, the robot B14 rotates the annular plate unit on the turntable B13 to the annular plate unit flaring device 7 for processing.

[0100] When the idle robot C16 finds that there is an annular plate unit in the annular plate unit positioning groove on the turntable C15, the robot C16 rotates the annular plate unit on the turntable C15 to the rim flanging device 8, and flanging the end rim edge of the flared end of the annular plate unit outward, so that the annular plate unit forms a structure after the first step in step S7 as recorded in the specification and the drawings of the patent document with application number 202111230454.4; then the annular plate unit that has completed the rim flanging process is taken out and rotated by the robot C16; during the turnover process, the camera 119 provided on the annular plate unit fixture of the robot C16 observes the quality of the outer circumferential side wall surface of the annular plate unit for one circle. When the outer circumferential side wall surface of the annular plate unit observed by the camera 119 is defective, the robot C16 rotates the annular plate unit to the defective product placement table C26 so that the operator can judge it as The annular plate unit of the defective product is manually judged. If the operator judges that the surface defect of the annular plate unit is only oil stain or other impurities, or even a misjudgment of the camera 119, the surface of the annular plate unit is wiped clean, and when there is no annular plate unit on the turntable D17, the annular plate unit is placed in the annular plate unit positioning groove of the turntable D17. If the operator judges that the annular plate unit does have defects, the operator transfers the defective product to the defective product processing area for subsequent processing; when the camera 119 of the robot C16 observes that there are no defects on the outer circumferential side wall surface of the annular plate unit, the robot C16 transfers the annular plate unit to the annular plate unit positioning groove of the turntable D17 so that the subsequent process can operate normally; and then when there is an annular plate unit in the annular plate unit positioning groove on the turntable C15, the robot C16 again transfers the annular plate unit on the turntable C15 to the wheel rim flanging device 8 for processing.

[0101] When the idle robot D18 detects that there is a ring plate unit in the ring plate unit positioning groove on the turntable D17, the robot D18 rotates the ring plate unit on the turntable D17 to the rim cylinder trimming device 9 to shape the ring plate unit that has completed the flange turning of the rim, so that the structures of the body part, the flared part, and the rim flanging part of the ring plate unit can be completely coaxial, and ensure that the roundness meets the requirements for subsequent processing; then the robot D18 takes out the ring plate unit that has completed the cylinder shaping process and rotates it; during the rotation process, the camera 119 set on the ring plate unit fixture of the robot D18 observes the quality of the outer circumferential side wall surface of the ring plate unit for one week. If there are defects on the outer circumferential side wall surface of the ring plate unit observed by the camera 119, the robot D18 rotates the ring plate unit to the defective product placement table D27 so that the operator can make a manual judgment on the ring plate unit judged as a defective product. If the operator determines that the surface defect of the ring plate unit is only oil stain or other impurities, or even a misjudgment by the camera 119, after wiping the surface of the ring plate unit clean and when there is no ring plate unit on the turntable E19, place the ring plate unit in the ring plate unit positioning groove of the turntable E19. If the operator determines that the ring plate unit actually has defects, the operator rotates the defective product to the defective product treatment area for subsequent processing; when the camera 119 of the robot D18 observes that there are no defects on the outer circumferential side wall surface of the ring plate unit, the robot D18 rotates the ring plate unit into the ring plate unit positioning groove of the turntable E19 so that the subsequent processes can be carried out normally; then when there is a ring plate unit in the ring plate unit positioning groove on the turntable D17 again, the robot D18 rotates the ring plate unit on the turntable D17 to the rim cylinder trimming device 9 for processing.

[0102] When the idle robot E20 finds that there is an annular plate unit in the annular plate unit positioning groove on the turntable E19, the robot E20 turns the annular plate unit on the turntable E19 to the rim curling device 10, and performs rim flanging processing on the annular plate unit that has completed the cylinder shaping, so that the flanging of the annular plate unit is rolled up and fixed to form the rim structure after the second step in step S7 as recorded in the specification and the drawings of the specification of the patent document with application number 202111230454.4; then the annular plate unit that has completed the rim curling is taken out by the robot E20 and turned over; during the turnover process, the camera 119 set by the annular plate unit fixture of the robot E20 observes the quality of the outer circumferential side wall surface of the annular plate unit for one week. When the outer circumferential side wall surface of the annular plate unit observed by the camera 119 is defective, the robot E20 turns the annular plate unit to the defective product placement table E28 for operation. The operator manually judges the annular plate unit judged as a defective product. If the operator judges that the surface defect of the annular plate unit is only oil stains or other impurities, or even a misjudgment of the camera 119, the surface of the annular plate unit is wiped clean, and when there is no annular plate unit on the turntable F21, the annular plate unit is placed in the annular plate unit positioning groove of the turntable F21. If the operator judges that the annular plate unit does have defects, the operator transfers the defective product to the defective product processing area for subsequent processing; when the camera 119 of the robot E20 observes that there is no defect on the outer circumferential side wall surface of the annular plate unit, the robot E20 transfers the annular plate unit to the annular plate unit positioning groove of the turntable F21 so that the subsequent process can be operated normally; and then when there is an annular plate unit in the annular plate unit positioning groove on the turntable E19, the robot E20 again transfers the annular plate unit on the turntable E19 to the wheel rim curling device 10 for processing.

[0103] When the idle robot F22 detects a ring plate unit in the ring plate unit positioning groove on the turntable F21, the robot F22 transfers the ring plate unit on the turntable F21 to the tire mounting surface shaping device 11, and processes the connection between the body part and the flared part of the ring plate unit after the cylinder shaping is completed to form a tire mounting surface, so that the ring plate unit forms the rim blank standard part structure after the last step in step S7 as described in the specification and the accompanying drawings of the patent document with the application number 202111230454.4; then the robot F22 takes out the ring plate unit that has completed the tire mounting surface shaping process and transfers it; during the transfer process, the camera 119 set on the ring plate unit fixture of the robot F22 observes the quality of the outer circumferential side wall surface of the ring plate unit for one week. If the camera 119 observes a defect on the outer circumferential side wall surface of the ring plate unit, the robot F22 transfers the ring plate unit to the defective product placement table F29 so that the operator can make a manual judgment on the ring plate unit judged as a defective product. If the operator judges that the surface defect of the ring plate unit is only oil stain or other impurities, or even a misjudgment by the camera 119, after wiping the surface of the ring plate unit clean, when there is no ring plate unit on the turntable G23, the ring plate unit is placed in the ring plate unit positioning groove of the turntable G23. If the operator judges that the ring plate unit actually has a defect, the operator transfers the defective product to the defective product treatment area for subsequent treatment; when the camera 119 of the robot F22 observes that there is no defect on the outer circumferential side wall surface of the ring plate unit, the robot F22 transfers the ring plate unit into the ring plate unit positioning groove of the turntable G23 for normal operation of the subsequent process; then when there is a ring plate unit in the ring plate unit positioning groove on the turntable F21 again, the robot F22 transfers the ring plate unit on the turntable F21 to the tire mounting surface shaping device 11 for processing.

[0104] In the processes involving the above-mentioned robots, when each robot picks up the corresponding annular plate unit, the robot moves to the position of the corresponding annular unit plate according to the image captured by the camera 119, and keeps the annular plate unit fixture perpendicular to the axis of the corresponding annular plate unit, with the symmetric clamping plates 110 located on both sides of the annular plate unit, and the driving roller 111 and the driven roller 112 on the same clamping plate 110 also symmetrically located on both sides of the axis of the annular plate unit; then the clamping plate driving device 114 drives the clamping plates 110 to move towards each other until the driving roller 111 and the driven roller 112 on the clamping plates 110 are both in contact with and clamp the outer side wall of the annular plate unit at the same time; at this time, due to the action of the self-weight of the annular plate unit, the annular plate unit has a tendency to move downward relative to the roller runner 127 and the roller roll 126 of the driving roller 111 and the driven roller 112, and because the clamping plate 110 has a clamping force on the annular plate unit, the anti-slip convex rings 151 provided on the surface of the anti-slip cushion layer 141 of the roller roll 126 are deformed due to the clamping force at the positions corresponding to the contact with the annular plate unit, thereby compressing the annular elastic pieces 152 at the corresponding positions to deform. Since the elastic coefficient of the annular elastic piece 152 is greater than that of the anti-slip convex ring 151, the annular elastic piece 152 exerts a sufficient relative force on the anti-slip convex ring 151 at the corresponding position, thereby providing a force to make the anti-slip convex ring 151 tend to return to its original state, thus ensuring the anti-slip effect of the anti-slip convex ring 151. Moreover, since the anti-slip cushion layer 141 is connected to the cylindrical groove 140 through the annular corrugated structure 144, and the anti-slip cushion layer 141 is provided with the annular flange 145 and the connecting sleeve 146 structure, the friction force generated by the anti-slip cushion layer 141 under the action of the gravity of the annular plate unit is prevented from moving downward relative to the cylindrical groove 140, further ensuring the fixing effect of the annular plate unit after clamping and the annular plate unit fixture.

[0105] And it is connected and fixed through the conical structure of the plug body 129 and the connecting sleeve 146, further preventing the connecting sleeve 146 from separating from the notch of the cylindrical groove 140.

[0106] And when the camera 119 needs to observe the annular plate unit clamped by the annular plate unit fixture to determine whether it is a defective product, the roller runner driving device 134 drives the roller runner 127 to rotate, thereby driving the annular plate unit to rotate, so that the camera 119 can observe the entire outer side wall of the annular plate unit.

[0107] The support block 131 of the roller roll limiting frame 130 is provided with a guiding groove 139 corresponding to the plug body 129, and the guiding groove 139 is matched and limited with the operating convex ring 153 of the plug body 129, thereby playing a role in laterally supporting the roller roll 126 and ensuring the lateral supporting force of the roller roll 126.

[0108] Since the pinch roll rotating roll 126 is clamped with the annular plate unit for a long time and many times and needs to bear the relative downward movement trend of the annular plate unit, the anti-slip cushion layer 141 needs to be replaced after the pinch roll rotating roll 126 has been used for a long time. When replacing the anti-slip cushion layer 141, only need to screw the plug body 129 until it is separated from the central screw 143 in the cylindrical groove 140, then the anti-slip cushion layer 141 can be replaced. After replacement, screw the plug body 129 and the central screw 143 tightly again to fix them.

[0109] In the process of producing a rim using a rim blank standard part, for some rims with special process requirements, two rim blank standard parts need to be welded coaxially and fixed through an annular connecting strip. The present application can also produce and process the connecting strip.

[0110] When it is necessary to produce an annular connecting strip, first place the connecting strip raw material along the length direction of the sheet metal loading rack 33 of the sheet metal sawing device 1, and then fix a sheet metal limiting device on the side of the sawing table 30 facing away from the sheet metal loading rack 33 according to the size of the rim blank standard part to be produced. The distance between the sheet metal limiting device and the saw blade is equal to the circumference of the rim blank standard part to be produced; then move the connecting strip raw material towards the sawing table 30 until it is in contact with the sheet metal limiting device for limiting; then the pneumatic piston cylinders 32 on the horizontal cross bar 31 drive the horizontal pressing strips to move downward respectively, so that the horizontal pressing strips press and fix the connecting strip raw materials on both sides of the saw blade respectively; finally, the saw blade is started and moves from one side of the sawing table 30 to the other side along the strip-shaped hole, and then the connecting strip unit is sawed off from the connecting strip raw material. Then the saw blade returns to the starting position, and the piston rod 32 is started to drive the horizontal pressing strip to move upward to the maximum stroke. At this time, the sawed-off connecting strip unit is transferred to the next process, and the above actions are repeated for the connecting strip raw material to continue cutting the connecting strip raw material.

[0111] The sawn connecting bar unit is curled into an annular structure by the connecting bar unit curling device 2; during operation, the distance between the axis connection line of the curling guiding pressure wheel A45 and the curling guiding base wheel 44 is adjusted to be equal to the thickness of the connecting bar unit by adjusting the handwheel 52 according to the thickness of the connecting bar unit; the distance between the axis connection line of the curling guiding pressure wheel B46 driven by the piston rod 55 when it extends out of the piston cylinder 54 and the curling guiding base wheel 44 is adjusted by adjusting the adjusting nut 57 on the adjusting screw rod B56, and the distance between the axis connection line of the curling guiding pressure wheel B46 driven by the piston rod 55 when it retracts into the piston cylinder 54 and the curling guiding base wheel 44 is greater than or equal to the distance between the axis connection line of the curling guiding pressure wheel A45 and the curling guiding base wheel 44; the curling guiding base wheel 44 is driven by a base wheel driving device, one end of the connecting bar unit is inserted into the space between the curling guiding base wheel 44 and the curling guiding pressure wheel A45 from one end far away from the curling guiding pressure wheel B46, and then it is conveyed under the action of the curling guiding base wheel 44 until the end of the connecting bar unit passes through the curling guiding base wheel 44 corresponding to the curling guiding pressure wheel B46 and contacts the curling guiding pressure wheel B46. When the connecting bar unit passes through the curling guiding pressure wheel B46 for a period of time, the piston cylinder 54 drives the piston rod 55 and the curling guiding pressure wheel B46 to move away from the piston cylinder 54, thereby driving the curling guiding pressure wheel B46 to bend the connecting bar unit around the corresponding curling guiding base wheel 44. After being bent, the connecting bar unit extends towards the guiding inclined plate 43 after bypassing the curling guiding base wheel 44. Due to the action of the guiding inclined plate 43, the curled connecting bar unit located on the guiding inclined plate 43 will not contact the curling guiding base wheel 44, the curling guiding pressure wheel A45, and the curling guiding pressure wheel B46, thus not affecting the continuous curling of the connecting bar unit.

[0112] The curled connecting bar unit is welded by the curling material welding device 4 to form an annular connecting bar unit, and the operation method is the same as that of the sheet material unit after the above-mentioned bending and flanging processes are completed and welded by the curling material welding device 4 to form an annular unit sheet.

[0113] The welded annular connecting bar unit is then restored to a circular shape by the sheet material unit rolling device 5, and the operation method is the same as the circular restoration operation of the annular unit sheet; the connecting bar unit after the circular restoration operation can be used for the production of the rim.

Claims

1. Rim blank standard part processing production line, characterized in that: It successively includes a sheet sawing device (1), a sheet unit rolling device (5), an annular plate unit trimming device (6), an annular plate unit flaring device (7), a rim flanging device (8), a rim cylinder trimming device (9), a rim curling device (10) and a tire mounting surface shaping device (11) along the material production conveying direction. One side of the sheet unit rolling device (5) is also provided with a curled material welding device (4); between the annular plate unit trimming device (6) and the annular plate unit flaring device (7), between the annular plate unit flaring device (7) and the rim flanging device (8), between the rim flanging device (8) and the rim cylinder trimming device (9), between the rim cylinder trimming device (9) and the rim curling device (10), and between the rim curling device (10) and the tire mounting surface shaping device (11), each robot turns around the annular unit plate respectively, and the robot is located on the side of the curled material welding device (4) corresponding to the sheet unit rolling device (5); The sheet sawing device (1) includes a sawing table (30). A sheet loading rack (33) is fixedly connected to one side of the sawing table (30) away from the sheet unit rolling device (5). A strip-shaped hole is arranged on the top surface of the sawing table (30) along the direction perpendicular to the sheet loading rack (33). A vertically arranged saw blade is rotatably connected inside the sawing table (30). The top of the saw blade extends upward through the strip-shaped hole and reciprocates along the strip-shaped hole. A horizontal cross bar (31) is fixedly connected above the top surface of the sawing table (30) corresponding to the strip-shaped hole. Horizontal pressing strips are respectively arranged at the bottom of the horizontal cross bar (31) corresponding to both sides of the strip-shaped hole. The horizontal pressing strips are vertically and movably connected to the horizontal cross bar (31) through pneumatic piston cylinders (32); The coiled sheet unit welding device (4) includes a base frame (58). The two opposite side walls of the base frame (58) are open, forming a frame inner cavity (77). The top of the base frame (58) includes longitudinal horizontal top rods (59) symmetrically arranged in parallel on both sides. A longitudinal strip-shaped through hole (63) is formed between the longitudinal horizontal top rods (59). A scar removing device (60) and a welding device (62) that move horizontally back and forth longitudinally driven by a longitudinal driving device A (65) are further provided on the longitudinal horizontal top rods (59). The scar removing device (60) and the welding device (62) are fixedly connected. At positions corresponding to the strip-shaped through hole (63) at the bottom of the scar removing device (60) and the bottom of the welding device (62), a milling cutter and a welding head are respectively provided. The milling cutter corresponds to being located in the strip-shaped through hole (63), horizontally rotates around a vertical axis by a milling cutter driving motor, and the milling cutter driving motor is vertically movably connected to the scar removing device (60) through a milling cutter lifting device. The welding head corresponds to being located in the strip-shaped through hole (63) and is vertically movably connected to the welding device (62) through a welding head lifting device. The longitudinal driving device A (65) is fixedly connected to the base frame (58). The base frame (58) is also movably connected with a horizontally arranged fixed plate (61) longitudinally. The horizontally arranged fixed plate (61) reciprocates horizontally along the transverse direction relative to the base frame (58) through a transverse driving device A (69). The transverse driving device A (69) is fixedly connected to the base frame (58). When the horizontally arranged fixed plate (61) moves transversely to the maximum stroke at one side, the horizontally arranged fixed plate (61) is located outside the base frame (58). When the horizontally arranged fixed plate (61) moves transversely to the maximum stroke at the other side, the horizontally arranged fixed plate (61) is located directly below the strip-shaped through hole (63) and corresponds to both the milling cutter and the welding head. The longitudinal movement range of the milling cutter and the welding head is greater than the longitudinal range of the horizontally arranged fixed plate (61); The sheet material unit rolling device (5) comprises a horizontal base (34), a horizontally arranged driving roller (35) is provided in the middle of the horizontal base (34), one end of the driving roller (35) is connected to a roller driving device (39) fixedly connected to the horizontal base (34) through a roller transmission device, and a bearing seat D (37) is provided at the other end thereof, which is swingably connected to the horizontal base (34), and the bearing seat D (37) swings in a direction facing or facing away from the driving roller (35). When the bearing seat D (37) faces the driving roller (35) and rotates to a maximum stroke, the bearing seat D (37) is vertical and in contact with the horizontal base (34). The horizontal base (34) is rotatably connected to the driving roller (35) above; when the bearing seat D (37) rotates away from the driving roller (35) to the maximum stroke, the bearing seat D (37) is separated from the driving roller (35) located above; the horizontal base (34) is located below the driving roller (35) and is provided with a driven roller A in parallel; both ends of the driven roller A are rotatably connected to the horizontal base (34) through bearing seats C; the bearing seat C is connected to the horizontal base (34) through a roller lifting and adjusting device A; the horizontal base (34) is provided with driven rollers arranged in parallel with the driving roller (35) on both sides of the driving roller (35); The driven roller B (36) is rotatably connected to the respective bearing seats E (38) at both ends, and the bearing seats E (38) are movably connected to the horizontal base (34) via the roller lifting and adjusting device B; the top surface of the horizontal base (34) is provided with a lever (40) which can reciprocate horizontally along the axis direction parallel to the driving roller (35), one end of the lever (40) extends to the position of the driving roller (35) located above, and the other end of the lever (40) is fixedly connected with a nut pair C, and the nut pair C is transmission-connected to the transverse screw rod B (41) provided on the top surface of the horizontal base (34), so that The two ends of the transverse screw rod B (41) are rotatably connected to the horizontal base (34) through the bearing seat F, and one end of the transverse screw rod B (41) is rotatably connected to the horizontal base (34) through a lever driving device fixedly connected to the horizontal base (34). When the transverse screw rod B (41) drives the lever (40) to move toward the roller driving device (39) to a maximum stroke through the nut pair C, the lever (40) fits with the roller driving device (39). When the transverse screw rod B (41) drives the lever (40) to move away from the roller driving device (39) to a maximum stroke through the nut pair C, the lever (40) separates from the driving roller (35) located above. The trimming device (6) for the annular plate unit includes a horizontal base (81) with a support device (107) provided at the bottom. On the top surface of the horizontal base (81), there is an annular plate expanding device (82) rotatably connected about a vertical axis. On the top surface of the horizontal base (81), on one side of the annular plate expanding device (82), there is also a cutting tool (101), and the cutting edge of the cutting tool (101) points to the annular plate expanding device (82). The cutting tool (101) is fixedly connected to a tool holder (100). The tool holder (100) is connected to a tool holder lifting and adjusting device for up and down adjustment. The tool holder lifting and adjusting device is connected to a tool holder horizontal adjusting device. The tool holder horizontal adjusting device is provided on the horizontal base (81), and the tool holder lifting and adjusting device is provided on the tool holder horizontal adjusting device. The tool holder (100) is provided on the side of the tool holder lifting and adjusting device facing the annular plate expanding device (82). The rotation driving device (83) of the annular plate expanding device (82) is connected to the bottom of the horizontal base (81).

2. The rim blank standard part processing production line according to claim 1, characterized in that: The annular plate expansion device (82) comprises a vertical sleeve (89) fixedly connected to the top surface of the horizontal base (81); the output shaft (93) of the rotation drive device (83) passes upward through the horizontal base (81) and then extends into the vertical sleeve (89), and then extends upward out of the vertical sleeve (89) and contacts with a plurality of expansion unit blocks uniformly distributed coaxially; the expansion unit blocks comprise an annular plate expansion unit (85) and an output shaft contact unit (86) fixed coaxially by connecting the vertical plate (87); the annular plate expansion unit (85) is a plurality of petal structures formed by uniformly dividing the same cylindrical side wall; the output shaft contact unit (86) is a plurality of petal structures formed by uniformly dividing the same conical side wall. The output shaft (93) has a vertebral structure, the upper side wall of the output shaft (93) is a vertebral structure that matches and contacts the output shaft contact unit (86), the top diameter of the vertebral body is larger than the bottom diameter of the vertebral body, the inner diameter of the vertical sleeve (89) is larger than or equal to the maximum diameter of the vertebral body, and the rotation drive device (83) is movably connected to the horizontal base (81) via a lifting drive device A (91) fixed to the bottom surface of the horizontal base (81); a cone sleeve (88) is coaxially sleeved and fixed on the top of the side wall of the output shaft (93), the axial hole of the cone sleeve (88) matches the connecting shaft (94) coaxially arranged on the top of the output shaft (93), and the top of the output shaft (93) is located at a convex portion formed around the connecting shaft (94). The platform is a limiting boss of the conical sleeve (88); the end of the connecting shaft (94) facing away from the output shaft (93) is detachably fixedly connected to a fastening plate (95) through a fastening bolt (99); the fastening plate (95) axially limits the conical sleeve (88) and is fixedly connected to the limiting boss; the top pipe mouth of the vertical sleeve (89) is provided with an annular horizontal plate (90) facing outward; the bottom edges of the connecting vertical plate (87) and the annular plate expansion unit (85) are flush and in contact with the top surface of the annular horizontal plate (90); a plurality of horizontal support plates (84) are evenly distributed on the top surface of the horizontal base (81) on the outside of the vertical sleeve (89) and centered on the axis of the vertical sleeve (89); the horizontal support plates (84) are arranged on the top surface of the horizontal base (81) The plate (84) is connected to the horizontal base (81) through a support frame (96); the top surface of the horizontal support plate (84) is lower than the bottom of the annular plate expansion device (82); and the distance between the side edge of the horizontal support plate (84) facing away from the vertical sleeve (89) and the axis of the vertical sleeve (89) is greater than the outer diameter of the annular plate unit; the support frame (96) is connected to the horizontal support plate (84) through a lifting drive device B (97); the lifting drive device B (97) is fixedly connected to the support frame (96) and drives the horizontal support plate (84) to be movably connected up and down; when the horizontal support plate (84) moves upward to the maximum stroke, the top surface of the horizontal support plate (84) is flush and lower than the bottom of the annular plate expansion device (82).

3. The rim blank standard part processing production line according to claim 1, characterized in that: The tool rest horizontal adjustment device includes a horizontal base (103). A horizontal lead screw is rotatably connected inside the horizontal base (103), and the axial direction of the horizontal lead screw is the same as the cutting edge direction of the cutting tool (101). One end of the horizontal base (103) is fixedly connected with a translation drive device (105) for driving the horizontal lead screw to rotate. The tool rest lifting adjustment device includes a lifting base (104). A nut pair D that is in transmission connection with the horizontal lead screw is fixedly connected to the bottom of the lifting base (104), and the lifting base (104) reciprocates along the axial direction of the horizontal lead screw. A vertical lead screw is rotatably connected inside the lifting base (104). A lifting drive device C (106) for driving the vertical lead screw to rotate is fixedly connected to the top end of the lifting base (104). A corresponding nut pair E is fixed to the tool rest (100) for the vertical lead screw, and the tool rest (100) reciprocates along the axial direction of the vertical lead screw.

4. The rim blank standard part processing production line according to claim 1, characterized in that: On the side where the annular plate unit trimming device (6) is located, there is a robot A (12). On the side where the annular plate unit flaring device (7) is located, there is a robot B (14). On the side where the rim flanging device (8) is located, there is a robot C (16). On the side where the rim barrel trimming device (9) is located, there is a robot D (18). On the side where the rim curling device (10) is located, there is a robot E (20). On the side where the tire mounting surface shaping device (11) is located, there is a robot F (22). On the side of the robot A (12) facing away from the robot B (14), there is a turnover table A. Between the robot A (12) and the robot B (14), there is a turnover table B (13). Between the robot B (14) and the robot C (16), there is a turnover table C (15). Between the robot C (16) and the robot D (18), there is a turnover table D (17). Between the robot D (18) and the robot E (20), there is a turnover table E (19). Between the robot E (20) and the robot F (22), there is a turnover table F (21). On the side of the robot F (22) facing away from the robot E (20), there is a turnover table G (23). On the side of the robot A (12) facing away from the annular plate unit trimming device (6), there is a defective product placement table A (24). On the side of the robot B (14) facing away from the annular plate unit flaring device (7), there is a defective product placement table B (25). On the side of the robot C (16) facing away from the rim flanging device (8), there is a defective product placement table C (26). On the side of the robot D (18) facing away from the rim barrel trimming device (9), there is a defective product placement table D (27). On the side of the robot E (20) facing away from the rim curling device (10), there is a defective product placement table E (28). On the side of the robot F (22) facing away from the tire mounting surface shaping device (11), there is a defective product placement table F (29);The end parts of the robot A (12), robot B (14), robot C (16), robot D (18), robot E (20) and robot F (22) are respectively provided with annular plate unit fixtures. The annular plate unit fixture includes a fixture base plate (109). On both ends of the length direction of one end face of the fixture base plate (109), clamping plates (110) are symmetrically arranged respectively. The clamping plates (110) are simultaneously moved towards or away from each other through clamping plate driving devices (114). The clamping plate driving devices (114) are fixedly connected to the end face of the fixture base plate (109) on the side opposite to the clamping plates (110). A connecting head (118) for connecting with the robot is also fixedly connected to the end face of the fixture base plate (109) on the side opposite to the clamping plates (110). Driving rollers (111) and driven rollers (112) are symmetrically arranged respectively on the end faces of the clamping plates (110) facing each other. The axes of the driving rollers (111) and the axes of the driven rollers (112) are parallel and perpendicular to the plane formed by the fixture base plate (109) and the clamping plates (110). A camera (119) is also fixedly arranged on the end face of the fixture base plate (109) facing the side where the clamping plates (110) are located.

5. The rim blank standard part processing production line according to claim 4, characterized in that: The active pinch roller (111) and the driven pinch roller (112) both include a pinch roller shaft rod (138). The pinch roller shaft rod (138) is connected to the pinch plate (110) through a set of parallel connecting plates (128). One end of the connecting plate (128) is fixedly connected to the pinch plate (110), and the other end of the connecting plate (128) is respectively rotatably connected to the pinch roller shaft rod (138). Both ends of the pinch roller shaft rod (138) pass through the corresponding connecting plates (128) upward and downward. A pinch roller runner (127) is coaxially fixedly connected to the pinch roller shaft rod (138) at a position between the connecting plates (128). On the part of the pinch roller shaft rod (138) extending out of the connecting plate (128), pinch roller rollers (126) are respectively coaxially fixedly connected. The diameters of the pinch roller runner (127) and the pinch roller rollers (126) are equal. On the circumferential side wall of the pinch roller roller (126), a plurality of anti-slip convex rings (151) are evenly distributed along the axial direction. The anti-slip convex rings (151) are coaxially arranged with the pinch roller roller (126). Anti-slip patterns are provided on the circumferential side wall surface of the pinch roller runner (127); A runner driving device (134) is fixedly connected between the connecting plates (128) corresponding to the active pinch roller (111). The runner driving device (134) is in transmission connection with the pinch roller shaft rod (138); The pinch roller roller (126) includes a cylindrical groove (140) coaxially fixedly connected to one end of the pinch roller shaft rod (138) extending out of the connecting plate (128). The notch of the cylindrical groove (140) faces away from the pinch roller shaft rod (138). An anti-slip cushion layer (141) is coaxially wrapped and fixed on the circumferential outer side wall of the cylindrical groove (140). A plurality of anti-slip convex rings (151) are evenly distributed along the axial direction on the circumferential outer side wall of the anti-slip cushion layer (141); A plurality of annular grooves (150) coaxially arranged with the anti-slip cushion layer (141) are evenly provided along the axial direction on the circumferential outer side wall of the anti-slip cushion layer (141). An annular strip is coaxially provided on the groove wall of the annular groove (150) on the side away from the pinch roller shaft rod (138). The free end of the annular strip is connected to the bottom of the annular groove (150) through an annular elastic sheet (152). One side edge of the annular elastic sheet (152) is fixedly connected to the annular strip, and the other side edge of the annular elastic sheet (152) is fixedly connected to the bottom of the annular groove (150). The annular elastic sheet (152) pushes the annular strip out of the notch of the annular groove (150) to form an anti-slip convex ring (151).

6. The processing production line for the standard part of the rim blank as described in claim 5, wherein: The anti-slip cushion layer (141) is provided with an annular flange (145) extending inwards corresponding to the notch of the cylindrical groove (140). The annular flange (145) extends inwards to the inner side wall (142) of the cylindrical groove (140) and is provided with a connecting sleeve (146) matching the inner side wall (142) of the groove. A plug body (129) is further arranged in the cylindrical groove (140). The inner wall of the lumen (148) of the connecting sleeve (146) matches the side wall of the plug body (129), and the plug body (129) clamps and fixedly connects the connecting sleeve (146) to the inner side wall (142) of the groove. A central screw (143) is arranged at the center of the bottom of the cylindrical groove (140). A threaded hole (149) matching the central screw (143) is arranged at the axis center of one end of the plug body (129) extending into the lumen (148) of the connecting sleeve (146). The inner wall of the lumen (148) of the connecting sleeve (146) is a conical hole. The circumferential side wall of the plug body (129) on one side corresponding to the threaded hole (149) is a conical arc surface (147) matching the conical hole, and the conical arc surface (147) and the conical hole are in interference fit. The circumferential outer side wall surface of the cylindrical groove (140) is evenly spaced with an annular corrugated structure (144) formed by annular protrusions and annular depressions. The contact surface of the anti-slip cushion layer (141) with the circumferential outer side wall of the cylindrical groove (140) is also correspondingly provided with a matching annular corrugated structure (144).

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