An automobile wheel milling device and its working method

Abstract

The present invention provides a milling processing device for automobile wheels and its working method, which relates to the technical field of milling processing of automobile wheels. It includes a processing box and an equipment rack. An upper part of the inner cavity of the processing box is provided with a fixing and flipping component for fixing and flipping the wheel. A processing table component for processing the wheel is arranged in the middle of the inner cavity of the processing box. The processing table component includes two fixed wheels fixedly connected to both sides of the inner cavity of the processing box. One end of each of the two fixed wheels away from the processing box is provided with a transposition wheel. Two connecting plates are rotatably connected at equal distances to one end of the fixed wheel close to the transposition wheel. The other end of the connecting plate is rotatably connected to the transposition wheel. A first operation component and a second operation component are respectively arranged on the upper and lower sides between the two transposition wheels. The fixing and flipping component is used to complete the fixing and flipping of the wheel, and the processing table component is used to perform milling and grinding operations on the wheel, so as to complete various processing operations without replacing the equipment, effectively improving the working efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive wheel milling, and particularly relates to an automotive wheel milling device and its working method. Background Art

[0002] An automotive wheel is the part where the wheel center mounts the axle. The manufacturing methods of wheels include gravity casting, forging, low-pressure precision casting, etc. According to the characteristics and requirements of different vehicle models, different methods will be adopted for the wheel surface treatment process. Automotive wheel milling is an important link in the automotive manufacturing process, mainly involving the processing of the wheel surface, machining specific patterns, grooves or other uneven parts on the wheel surface to form the required shape, size and texture, which helps to improve the grip, heat dissipation performance and overall appearance of the wheel.

[0003] Deficiencies in the prior art: The existing milling devices can only complete a single milling operation. Since the milled wheels will produce complex structures such as multiple through grooves and holes, a large amount of burrs will remain at the milling positions and need secondary processing. The existing milling devices cannot quickly adjust or replace the workstations, and re-fixing easily causes the position of the wheel to change, affecting the accuracy of secondary processing. Moreover, traditional grinding methods such as grinding stones can only grind the wheel surface and cannot grind the inner walls of narrow through grooves or complex structures, affecting the working efficiency of the milling device. Summary of the Invention

[0004] The problem to be solved by the present invention is that the existing milling devices can only complete a single milling operation, cannot quickly adjust or replace the workstations, and at the same time, traditional grinding methods such as grinding stones can only grind the wheel surface and cannot grind the inner walls of narrow through grooves or complex structures.

[0005] To solve the above technical problems, the present invention provides an automotive wheel milling device, including a processing box and an equipment rack fixedly installed on one side thereof. An upper part of the inner cavity of the processing box is provided with a fixing and flipping assembly for fixing and flipping the wheel, and a middle part of the inner cavity of the processing box is provided with a processing table assembly for processing the wheel;

[0006] The processing table assembly includes two fixed wheels fixedly connected to both sides of the inner cavity of the processing box. At one end of each of the two fixed wheels away from the processing box, there is a transposition wheel. At one end of each of the fixed wheels close to the transposition wheel, two connecting plates are rotatably connected at equal distances. The other end of the connecting plate is rotatably connected to the transposition wheel. The upper and lower sides between the two transposition wheels are respectively provided with a first operation assembly and a second operation assembly.

[0007] Preferably, a connecting shaft is rotatably connected to the central axis of the commutation wheel, the other end of the connecting shaft is fixedly connected to the inner cavity of the processing box, one end of the processing box is fixedly installed with a first motor, and the output end of the first motor is fixedly connected to the central axis of one of the fixed wheels.

[0008] Preferably, the first operation assembly includes a first base disposed on one side between the two commutation wheels. On both sides of the outer surface of the first base, a first connecting rod and a first bevel gear are respectively fixedly connected. The ends of the first connecting rod and the first bevel gear away from the first base penetrate through the commutation wheel and are rotatably connected to the connecting plate. A commutation motor is fixedly installed at one end of one of the commutation wheels, the output end of the commutation motor is fixedly connected to a second bevel gear, and the surfaces of the first bevel gear and the second bevel gear are meshed and connected.

[0009] Preferably, a pressure ring is movably connected to the inner cavity of the first base, a limiting ring is fixedly connected to the upper part of the inner cavity of the first base, a groove is formed on one side of the outer surface of the pressure ring, the limiting ring is movably connected to the groove on the outer surface of the pressure ring, a first sealing plate is fixedly connected to the top end of the pressure ring, and a plurality of fastening springs are arranged at the bottom end of the pressure ring. The plurality of fastening springs are arranged in a circular array.

[0010] Preferably, a first hydraulic cylinder is fixedly connected to the bottom end of the first base, a first piston is movably connected to the inner cavity of the pressure ring, a connecting block is fixedly connected to the bottom end of the first piston, the output end of the first hydraulic cylinder is fixedly connected to the bottom end of the connecting block, and the pressure ring is sleeved on the lower part of the outer surface of the connecting block.

[0011] Preferably, the second operation assembly includes a second base disposed on the other side between the two commutation wheels. On both sides of the outer surface of the second base, second connecting rods are fixedly connected. The ends of the second connecting rods away from the second base penetrate through the commutation wheel and are rotatably connected to the connecting plate. A second hydraulic cylinder is fixedly installed at the bottom end of the second base, a second sealing plate is fixedly connected to the top end of the second base, a second piston is movably connected to the inner cavity of the second base, and the output end of the second hydraulic cylinder is fixedly connected to the bottom end of the second piston.

[0012] Preferably, the fixed flipping assembly includes a support frame rotatably connected to both sides of the inner cavity of the processing box. The other end of the processing box is fixedly installed with a second motor, the output end of the second motor is fixedly connected to one end of the support frame, a clamping block is movably connected to one side of the top end of the support frame, a clamping jaw is formed at the end of the clamping block away from the support frame, and a third hydraulic cylinder is fixedly connected to the other side of the top end of the support frame. The output end of the third hydraulic cylinder is fixedly connected to the end of the clamping block away from the clamping jaw.

[0013] Preferably, a slide rail is fixedly connected to the top end of the equipment rack, a first cylinder is fixedly installed at one end of the equipment rack, a milling equipment is movably connected to the surface of the slide rail, two blowers are fixedly installed at equal intervals on one side of the top end of the processing box, and an air duct is fixedly connected to the output end of the blower.

[0014] The present invention also provides a working method of an automobile wheel hub milling and processing device, including the following steps:

[0015] Step 1: First, place the hub to be processed on the top end of the first base. According to the specific specifications and dimensions of the hub, push the clamping block through the third hydraulic cylinder, and the jaws on the two clamping blocks clamp and fix the hub. After the fixation is completed, start the milling equipment, and perform milling operations on the hub through the milling equipment. After one side of milling is completed, the second motor drives the support frame 31 to rotate, and the fixed hub is turned over to complete the milling operation on the other side;

[0016] Step 2: After the double-sided milling of the hub is completed, add fluid abrasive in the inner cavity of the second base, and then start the first motor. The output end of the first motor rotates forward by 180 degrees, so that the second operation component moves upward and the direction remains unchanged. Place the hub on the top end of the second base. Then the output end of the first motor rotates 180 degrees in the reverse direction, so that the first operation component and the second operation component return to their original positions. Then start the transposition motor, and through the transposition motor, the first bevel gear and the second bevel gear are meshed and rotated to turn the first operation component by 180 degrees;

[0017] Step 3: After the first operation component is turned over, start the first hydraulic cylinder. The extending end of the first hydraulic cylinder pushes the first piston and the connecting block to move in the inner cavity of the pressure ring, and the pressure ring is pushed downward by the fastening spring to provide a thrust to the hub, so that the hub is fixed on the top end of the second base, and a fluid abrasive channel is formed between the pressure ring, the hub and the inner cavity of the second base. The first sealing plate and the second sealing plate support the hub and ensure the tightness of the connection at the same time;

[0018] Step 4: After the fluid abrasive channel is formed, start the second hydraulic cylinder, and the first hydraulic cylinder also continues to extend. The first hydraulic cylinder drives the first piston to perform piston movement in the inner cavity of the pressure ring, and the second hydraulic cylinder drives the second piston to perform piston movement in the inner cavity of the second base. The piston movement of the first piston and the second piston pushes the fluid abrasive to flow in the inner cavity, and the fluid abrasive is continuously ground under the action of pressure to realize the polishing and grinding of the inner walls of complex structures such as through grooves and holes.

[0019] The technical effects and advantages of the present invention:

[0020] The present invention is provided with a fixed flipping assembly to fix and flip the wheel hub, and the wheel hub is clamped and fixed by a clamping block and a jaw. It can be applicable to wheel hubs of various specifications and sizes, so that the wheel hub can be fixed on the first operating assembly for milling processing. After the milling processing of one side is completed, the support frame is rotated by the second motor to flip the wheel hub, ensuring that the turned wheel hub can remain in place, without the need for secondary fixation, thereby improving work efficiency.

[0021] The present invention performs milling and grinding operations on the wheel hub by providing a processing table assembly. After milling on the first base is completed, the wheel hub is moved to the top of the second base by rotating the fixed wheel and the transposing wheel. The fixed wheel and the transposing wheel rotate with each other via a connecting plate, and the direction of the connecting plate remains unchanged, so that the directions of the first operating assembly and the second operating assembly when moving always remain upward. Without the need to re-fix or replace equipment, the work station can be replaced to achieve different processing operations, and the tightness of the wheel hub between the first operating assembly and the second operating assembly is ensured by the first sealing plate and the second sealing plate.

[0022] The present invention fixes the wheel hub between the first operating component and the second operating component by providing a pressure ring. After the wheel hub is transferred to the top of the second base, the pressure ring is pushed by the first hydraulic cylinder to squeeze the wheel hub, and the pressure ring is separated from the squeezing of the connecting block. The pressure ring is provided with pressure by the tightening spring, so that a fluid abrasive channel is formed between the pressure ring, the wheel hub and the inner cavity of the second base. Finally, the piston movement of the first piston and the second piston promotes the fluid abrasive to flow in the inner cavity of complex structures such as through grooves and holes generated after the wheel hub is milled. The fluid abrasive is continuously ground under the action of pressure to achieve polishing and grinding of the inner walls of complex structures such as through grooves and holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the overall internal structure of the present invention.

[0025] Figure 3 It is a schematic structural diagram of the fixed flip assembly and the processing table assembly of the present invention.

[0026] Figure 4 It is a schematic diagram of the structure of the processing table assembly of the present invention.

[0027] Figure 5 The cross-sectional structure of the processing table assembly of the present invention is shown in FIG. Figure 1 .

[0028] Figure 6 The slope structure of the processing table assembly of the present invention is schematically shown. Figure 2 .

[0029] Figure 7 This is a schematic diagram of the overall sectional structure of the present invention.

[0030] The reference numerals in the drawings are: 1, processing box; 2, equipment rack; 3, fixed turning assembly; 31, support frame; 32, clamping block; 33, jaw; 34, third hydraulic cylinder; 4, processing table assembly; 41, fixed wheel; 42, connecting plate; 43, transposition wheel; 44, connecting shaft; 45, first operating assembly; 451, first base; 452, first connecting rod; 453, transposition motor; 454, first bevel gear; 455, second bevel gear; 456, first hydraulic cylinder; 457, pressure ring; 458, limiting ring; 459, first sealing plate; 4510, fastening spring; 4511, first piston; 4512, connecting block; 46, second operating assembly; 461, second base; 462, second connecting rod; 463, second hydraulic cylinder; 464, second sealing plate; 465, second piston; 5, slide rail; 6, first cylinder; 7, milling equipment; 8, fan; 9, air duct; 10, first motor; 11, second motor. Detailed implementation manners

[0031] The present invention provides a milling processing device for automobile wheels, as Figure 1 - Figure 7 shown, which includes a processing box 1 and an equipment rack 2 fixedly installed on one side thereof. A fixed turning assembly 3 for fixing and turning the wheel is arranged in the upper part of the inner cavity of the processing box 1, and a processing table assembly 4 for processing the wheel is arranged in the middle part of the inner cavity of the processing box 1.

[0032] Further, as Figure 3 shown, the processing table assembly 4 includes two fixed wheels 41 rotatably connected to both sides of the inner cavity of the processing box 1. Transposition wheels 43 are arranged at the ends of the two fixed wheels 41 far away from the processing box 1. Two connecting plates 42 are rotatably connected at equal intervals at the ends of the fixed wheels 41 close to the transposition wheels 43. The other ends of the connecting plates 42 are rotatably connected to the transposition wheels 43. The first operating assembly 45 and the second operating assembly 46 are respectively arranged on the upper and lower sides between the two transposition wheels 43, and the positions of the first operating assembly 45 and the second operating assembly 46 correspond to each other up and down.

[0033] Further, as Figure 3 and Figure 4As shown, a connecting shaft 44 is rotatably connected to the central axis of the position-changing wheel 43. The other end of the connecting shaft 44 is fixedly connected to the inner cavity of the processing box 1. A first motor 10 is fixedly installed at one end of the processing box 1. The output end of the first motor 10 is fixedly connected to the central axis of one of the fixed wheels 41. By the first motor 10, the fixed wheel 41 rotates. When the fixed wheel 41 rotates, it drives the two connecting plates 42 and the position-changing wheel 43 to rotate. While the fixed wheel 41 rotates relative to the connecting plate 42, the position-changing wheel 43 also rotates relative to the connecting plate 42, and the direction of the connecting plate 42 always remains unchanged. Therefore, when the fixed wheel 41 and the position-changing wheel 43 rotate relative to each other at both ends of the connecting plate 42, the directions of the first operating component 45 and the second operating component 46 also remain unchanged.

[0034] Further, as Figure 4 and Figure 5 shown, the first operating component 45 includes a first base 451 disposed on one side between the two position-changing wheels 43. The hub is milled by the first operating component 45. On both sides of the outer surface of the first base 451, a first connecting rod 452 and a first bevel gear 454 are respectively fixedly connected. The ends of the first connecting rod 452 and the first bevel gear 454 away from the first base 451 penetrate through the position-changing wheel 43 and are rotatably connected to the connecting plate 42. A position-changing motor 453 is fixedly installed at one end of one of the position-changing wheels 43. The output end of the position-changing motor 453 is fixedly connected to a second bevel gear 455. The surfaces of the first bevel gear 454 and the second bevel gear 455 are meshed. By the position-changing motor 453, the first bevel gear 454 and the second bevel gear 455 rotate meshingly, so that the first operating component 45 can remain in place after flipping.

[0035] Further, as Figure 4 and Figure 5 shown, a pressure ring 457 is movably connected to the inner cavity of the first base 451. A limiting ring 458 is fixedly connected to the upper part of the inner cavity of the first base 451. A groove is formed on one side of the outer surface of the pressure ring 457. The limiting ring 458 is movably connected to the groove on the outer surface of the pressure ring 457. According to the specific specifications and dimensions of the hub, the position of the pressure ring 457 moving up and down is adjusted by the limiting ring 458. The top end of the pressure ring 457 is fixedly connected to a first sealing plate 459. The first sealing plate 459 is located at the top end of the limiting ring 458. The tightness between the pressure ring 457 and the hub is ensured by the first sealing plate 459. A plurality of fastening springs 4510 are arranged at the bottom end of the pressure ring 457. The plurality of fastening springs 4510 are arranged in a circular array. When the hub is squeezed and fixed by the pressure ring 457, the pressure is enhanced by the fastening springs 4510.

[0036] Further, as Figure 4 and Figure 5As shown, a first hydraulic cylinder 456 is fixedly connected to the bottom end of the first base 451. A first piston 4511 is movably connected to the inner cavity of the pressure ring 457. A connecting block 4512 is fixedly connected to the bottom end of the first piston 4511. The output end of the first hydraulic cylinder 456 is fixedly connected to the bottom end of the connecting block 4512. The pressure ring 457 is sleeved on the lower part of the outer surface of the connecting block 4512. When the extending end of the first hydraulic cylinder 456 is shortened to the shortest, the pressure ring 457 is fixed in the inner cavity of the first base 451 through the connecting block 4512. After the first operating assembly 45 is flipped and the hub is fixed between the first operating assembly 45 and the second operating assembly 46, when the extending end of the first hydraulic cylinder 456 extends, it pushes the first piston 4511 to perform a piston movement in the inner cavity of the pressure ring 457. After the pressure ring 457 is released from the extrusion of the connecting block 4512, the fastening spring 4510 provides pressure to the pressure ring 457, so that it squeezes and fixes the hub on the top end of the second operating assembly 46.

[0037] Further, as Figure 4 , Figure 5 and Figure 6 shown, the second operating assembly 46 includes a second base 461 arranged on the other side between two transposition wheels 43. A second hydraulic cylinder 463 is fixedly installed at the bottom end of the second base 461. A second sealing plate 464 is fixedly connected to the top end of the second base 461. A second piston 465 is movably connected to the inner cavity of the second base 461. After the hub is milled in the first operating assembly 45, the hub is transferred to the second operating assembly 46 by the rotation of the fixed wheel 41 and the transposition wheel 43. After the first operating assembly 45 is flipped, the hub is located between the first base 451 and the second base 461. The first sealing plate 459 and the second sealing plate 464 have a certain width and can be applicable to hubs of various different specifications and sizes. While strengthening the hub through the first sealing plate 459 and the second sealing plate 464, the tightness of the connection is ensured.

[0038] Further, as Figure 4 , Figure 5 and Figure 6As shown in the figure, on both sides of the outer surface of the second base 461, there are fixedly connected second connecting rods 462. One end of the second connecting rod 462 away from the second base 461 penetrates through the switching wheel 43 and is rotatably connected to the connecting plate 42. The output end of the second hydraulic cylinder 463 is fixedly connected to the bottom end of the second piston 465. Before the first base 451 flips, fluid abrasive is added into the inner cavity of the second base 461. After the wheel hub is fixed between the first base 451 and the second base 461, the first hydraulic cylinder 456 and the second hydraulic cylinder 463 respectively push the first piston 4511 and the second piston 465. The wheel hub is between the first base 451 and the second base 461. According to the specific specifications and dimensions of the wheel hub, through the downward extrusion of the pressure ring 457, it is fixed on the top end of the second base 461, so that a fluid abrasive channel is formed between the pressure ring 457, the wheel hub and the inner cavity of the second base 461. Through the piston movement of the first piston 4511 and the second piston 465, the fluid abrasive is pushed to flow in the inner cavities of the through grooves, holes and other complex structures generated after the wheel hub is milled. Since the fluid abrasive is composed of a polymer material and abrasive grains, the polymer material does not adhere to the metal, so there will be no residue. Under the action of pressure, the fluid abrasive is continuously ground to achieve the polishing and grinding of the inner walls of the through grooves, holes and other complex structures.

[0039] Further, as Figure 3 and Figure 7 shown, the fixed flipping assembly 3 includes support frames 31 rotatably connected to both sides of the inner cavity of the processing box 1. The other end of the processing box 1 is fixedly installed with a second motor 11. The output end of the second motor 11 is fixedly connected to one end of one of the support frames 31. One side of the top end of the support frame 31 is movably connected with a clamping block 32. A clamping jaw 33 is opened at one end of the clamping block 32 away from the support frame 31. The other side of the top end of the support frame 31 is fixedly connected with a third hydraulic cylinder 34. The output end of the third hydraulic cylinder 34 is fixedly connected to the end of the clamping block 32 away from the clamping jaw 33. The third hydraulic cylinder 34 pushes the clamping block 32, and the wheel hub is clamped and fixed by the clamping jaws 33 on the two clamping blocks 32. After one side is milled, the second motor 11 rotates the support frame 31 to turn over the fixed wheel hub, so that the position of the wheel hub remains unchanged after turning over, and the other side is milled.

[0040] Further, as Figure 1 shown, the top end of the equipment frame 2 is fixedly connected with a slide rail 5. One end of the equipment frame 2 is fixedly installed with a first cylinder 6. The surface of the slide rail 5 is movably connected with a milling equipment 7. The first cylinder 6 moves the milling equipment 7 on the surface of the slide rail 5, and the wheel hub is milled by the milling equipment 7. On one side of the top end of the processing box 1, two blowers 8 are fixedly installed at equal intervals. The output end of the blower 8 is fixedly connected with an air duct 9. During the milling process, dust removal is carried out through the air duct 9.

[0041] The present invention also provides a working method for a machining device for automobile wheels, comprising the following steps:

[0042] Step 1: First, place the wheel to be machined on the top of the first base 451. According to the specific specifications and dimensions of the wheel, push the clamping block 32 through the third hydraulic cylinder 34, and clamp and fix the wheel by the jaws 33 on the two clamping blocks 32. After the fixing is completed, start the milling device 7, and perform milling operations on the wheel through the milling device 7. During the milling process, move the milling device 7 through the slide rail 5 and the first cylinder 6. After one side of the milling is completed, start the first motor 10. The first motor 10 rotates the fixed wheel 41. When the fixed wheel 41 rotates 90 degrees, drive the two connecting plates 42 and the transposition wheel 43 to rotate. The direction of the connecting plate 42 remains unchanged, so that the first operating assembly 45 moves downward while the direction remains unchanged. The movement of the first operating assembly 45 provides space for turning the wheel over. When the first operating assembly 45 moves downward, start the second motor 11, and drive the support frame 31 to rotate through the second motor 11 to perform a turning operation on the wheel fixed between the two clamping blocks 32. After the turning is completed, the output end of the first motor 10 rotates in the reverse direction to reset the first operating assembly 45 to support the wheel, and then perform milling operations on the other side;

[0043] Step 2: After the double-sided milling of the wheel is completed, add fluid abrasive to the inner cavity of the second base 461. Then start the first motor 10 again. The output end of the first motor 10 rotates forward 180 degrees, so that the second operating assembly 46 moves upward and the direction remains unchanged. After the second operating assembly 46 moves above the first operating assembly 45, the extending end of the third hydraulic cylinder 34 contracts, driving the two clamping blocks 32 to move to both sides, and place the wheel on the top of the second base 461. After the placement is completed, then the output end of the first motor 10 rotates 180 degrees in the reverse direction, so that the first operating assembly 45 and the second operating assembly 46 return to their original positions. Then start the transposition motor 453, and make the first bevel gear 454 and the second bevel gear 455 engage and rotate through the transposition motor 453 to turn the first operating assembly 45 by 180 degrees;

[0044] Step 3: After the first operating component 45 finishes flipping, start the first hydraulic cylinder 456. The extending end of the first hydraulic cylinder 456 pushes the first piston 4511 and the connecting block 4512 to move inside the inner cavity of the pressure ring 457. When the pressure ring 457 is disengaged from the extrusion of the connecting block 4512, the pressure ring 457 is pushed downward by the fastening spring 4510 to provide a thrust to the hub, so that the hub is fixed at the top of the second base 461, and a fluid abrasive channel is formed between the inner cavities of the pressure ring 457, the hub and the second base 461. The first sealing plate 459 and the second sealing plate 464 have a certain width and can be applicable to hubs of various different specifications and sizes. After the hub is fixed between the first base 451 and the second base 461, while the hub is supported by the first sealing plate 459 and the second sealing plate 464, the tightness of the connection is ensured;

[0045] Step 4: After the fluid abrasive channel is formed, start the second hydraulic cylinder 463, and the first hydraulic cylinder 456 also continues to extend. The first hydraulic cylinder 456 drives the first piston 4511 to perform a piston motion inside the inner cavity of the pressure ring 457, and the second hydraulic cylinder 463 drives the second piston 465 to perform a piston motion inside the inner cavity of the second base 461. The piston motions of the first piston 4511 and the second piston 465 push the fluid abrasive to flow inside the inner cavities of the complex structures such as the through grooves and holes generated after the hub is milled. Under the action of pressure, the fluid abrasive is continuously ground to achieve the polishing and grinding of the inner walls of the complex structures such as the through grooves and holes.

[0046] It can be understood that the present invention is described by some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. An automobile wheel milling processing device, comprising a processing box (1) and a device rack (2) fixedly installed on one side thereof, characterized in that: An upper part of the inner cavity of the processing box (1) is provided with a fixing and flipping assembly (3) for fixing and flipping a wheel hub, and a processing table assembly (4) for processing the wheel hub is arranged in the middle of the inner cavity of the processing box (1); the processing table assembly (4) includes two fixing wheels (41) fixedly connected to both sides of the inner cavity of the processing box (1), one end of each of the two fixing wheels (41) far away from the processing box (1) is provided with a transposition wheel (43), two connecting plates (42) are rotatably connected to one end of each of the fixing wheels (41) close to the transposition wheel (43) at equal intervals, the other end of each of the connecting plates (42) is rotatably connected to the transposition wheel (43), a first operation assembly (45) and a second operation assembly (46) are respectively arranged on the upper and lower sides between the two transposition wheels (43); the first operation assembly (45) includes a first base (451) arranged on one side between the two transposition wheels (43), two first connecting rods (452) and a first bevel gear (454) are respectively fixedly connected to both sides of the outer surface of the first base (451), one ends of the first connecting rod (452) and the first bevel gear (454) far away from the first base (451) penetrate through the transposition wheel (43) and are rotatably connected to the connecting plate (42); the second operation assembly (46) includes a second base (461) arranged on the other side between the two transposition wheels (43), two second connecting rods (462) are fixedly connected to both sides of the outer surface of the second base (461), one ends of the second connecting rods (462) far away from the second base (461) penetrate through the transposition wheel (43) and are rotatably connected to the connecting plate (42); one end of a connecting shaft (44) is rotatably connected to the middle axis of the transposition wheel (43), the other end of the connecting shaft (44) is fixedly connected to the inner cavity of the processing box (1), a first motor (10) is fixedly installed at one end of the processing box (1), and an output end of the first motor (10) is fixedly connected to the middle axis of one of the fixing wheels (41); the fixing and flipping assembly (3) includes support frames (31) rotatably connected to both sides of the inner cavity of the processing box (1), a second motor (11) is fixedly installed at the other end of the processing box (1), an output end of the second motor (11) is fixedly connected to one end of one of the support frames (31), one side of the top end of the support frame (31) is movably connected to a clamping block (32), a clamping jaw (33) is formed at one end of the clamping block (32) far away from the support frame (31), a third hydraulic cylinder (34) is fixedly connected to the other side of the top end of the support frame (31), and an output end of the third hydraulic cylinder (34) is fixedly connected to one end of the clamping block (32) far away from the clamping jaw (33).

2. The automotive wheel milling device according to claim 1, characterized in that: A transposition motor (453) is fixedly installed at one end of one of the transposition wheels (43), an output end of the transposition motor (453) is fixedly connected to a second bevel gear (455), and the surfaces of the first bevel gear (454) and the second bevel gear (455) are meshed and connected.

3. The automotive wheel milling device according to claim 2, characterized in that: A pressure ring (457) is movably connected to the inner cavity of the first base (451). A limiting ring (458) is fixedly connected to the upper part of the inner cavity of the first base (451). A groove is formed on one side of the outer surface of the pressure ring (457). The limiting ring (458) is movably connected to the groove on the outer surface of the pressure ring (457). A first sealing plate (459) is fixedly connected to the top end of the pressure ring (457). A number of fastening springs (4510) are arranged at the bottom end of the pressure ring (457). The number of the fastening springs (4510) is arranged in a circular array.

4. The automotive wheel milling device according to claim 3, wherein: A first hydraulic cylinder (456) is fixedly connected to the bottom end of the first base (451). A first piston (4511) is movably connected to the inner cavity of the pressure ring (457). A connecting block (4512) is fixedly connected to the bottom end of the first piston (4511). The output end of the first hydraulic cylinder (456) is fixedly connected to the bottom end of the connecting block (4512). The pressure ring (457) is sleeved on the lower part of the outer surface of the connecting block (4512).

5. The automotive wheel milling device according to claim 4, characterized in that: A second hydraulic cylinder (463) is fixedly installed at the bottom end of the second base (461). A second sealing plate (464) is fixedly connected to the top end of the second base (461). A second piston (465) is movably connected to the inner cavity of the second base (461). The output end of the second hydraulic cylinder (463) is fixedly connected to the bottom end of the second piston (465).

6. The automotive wheel milling device according to claim 5, characterized in that: A slide rail (5) is fixedly connected to the top end of the equipment frame (2). A first air cylinder (6) is fixedly installed at one end of the equipment frame (2). A milling equipment (7) is movably connected to the surface of the slide rail (5). Two blowers (8) are fixedly installed at equal intervals on one side of the top end of the processing box (1). The output end of the blower (8) is fixedly connected to an air duct (9).

7. The working method of a milling machining device for an automobile wheel hub according to claim 6, characterized in that, Including the following steps: Step 1: First, place the hub to be processed on the top end of the first base (451). According to the specific specification dimensions of the hub, push the clamping blocks (32) through the third hydraulic cylinder (34). The jaws (33) on the two clamping blocks (32) clamp and fix the hub. After the fixing is completed, start the milling equipment (7). Perform milling operations on the hub through the milling equipment (7). After one side of the milling is completed, the second motor (11) drives the support frame (31) to rotate, and perform a turning operation on the fixed hub to complete the milling operation on the other side; Step 2: After the double-sided milling of the hub is completed, add fluid abrasive into the inner cavity of the second base (461), then start the first motor (10). The output end of the first motor (10) rotates forward by 180 degrees, so that the second operating component (46) moves upward and keeps the direction unchanged. Place the hub on the top of the second base (461). Then the output end of the first motor (10) rotates 180 degrees in the reverse direction, so that the first operating component (45) and the second operating component (46) return to their original positions. Then start the transposition motor (453), and through the transposition motor (453), the first bevel gear (454) and the second bevel gear (455) mesh and rotate to flip the first operating component (45) by 180 degrees; Step 3: After the first operating component (45) is flipped, start the first hydraulic cylinder (456). The extending end of the first hydraulic cylinder (456) pushes the first piston (4511) and the connecting block (4512) to move in the inner cavity of the pressure ring (457). The pressure ring (457) is pushed downward by the fastening spring (4510) to provide a thrust force to the hub, so that the hub is fixed on the top of the second base (461), and a fluid abrasive channel is formed between the inner cavities of the pressure ring (457), the hub and the second base (461). While the hub is supported by the first sealing plate (459) and the second sealing plate (464), the tightness of the connection is ensured; Step 4: After the fluid abrasive channel is formed, start the second hydraulic cylinder (463), and the first hydraulic cylinder (456) also continues. Under the action of pressure, the fluid abrasive continuously grinds to achieve the polishing and grinding of the inner walls of complex structures such as through grooves and holes.

Images