A wheel hub automatic batch polishing device and method

Abstract

The present application relates to the technical field of hub polishing, in particular to a kind of automatic batch type polishing machining device for hub, it includes hub body, still includes two groups of gantry being symmetrically arranged, first polishing assembly is arranged between two groups of gantry, driving assembly and limiting assembly are respectively arranged in the two sides of first polishing assembly, taper second polishing assembly is connected in first polishing assembly, mechanical iris device is arranged on second polishing assembly, and retractable flow passage is formed in the center of mechanical iris device;Support is also provided on gantry, arc guide is provided on support, and rotary drive assembly is slidably arranged on arc guide;Initial state, the fine polishing surface of hub body is located in the top end in second polishing assembly;Working condition, the whole device rotates 180 degrees around arc guide;Negative pressure pneumatic conveying device is arranged on first polishing assembly, and negative pressure pneumatic conveying device is respectively connected with rotary drive assembly and first polishing assembly.

Description

Technical Field

[0001] This invention relates to the field of wheel hub grinding technology, and more specifically, to an automatic batch grinding processing device and method for wheel hubs. Background Technology

[0002] Polishing is a crucial step in the production of aluminum alloy wheels. It not only improves the appearance of the wheels but also enhances their wear resistance and corrosion resistance.

[0003] According to CN221735819U, a car wheel hub polishing device includes a connecting structure fixedly engaged in the middle of the inner side of the car wheel hub. The top of the connecting structure is movably connected to a sliding component. The sliding component is disposed inside an electric slide rail and can reciprocate within the electric slide rail. The movement of the sliding component can drive the connecting structure to rotate left and right. By setting the sliding component, the force of the sliding component reciprocating within the electric slide rail is transformed into a slider that drives a limiting block to move. The limiting block is restricted by the connecting structure at different positions, and thus rotates at a certain angle around the pivot. This transforms the reciprocating rotation of the sliding component into the reciprocating tilting motion of the car wheel hub driven by the connecting structure. During the polishing process, the car wheel hub tilts symmetrically, pouring out the polishing abrasive accumulated at the edges and corners, and polishing the edges and corners of the polishing abrasive.

[0004] Existing wheel hub polishing equipment commonly employs zirconium bead polishing technology for the fine polishing stage of such special workpieces. However, zirconium beads, being particulate media with a certain mass, are typically handled differently in traditional fine polishing processes. The wheel hub is usually placed vertically within the polishing barrel, and polishing is achieved through friction between the hub and the zirconium beads by rotating the hub. During this process, the main surface to be polished remains vertically upward, resulting in contact and friction primarily between this surface and the zirconium beads directly above it.

[0005] In the friction polishing process, the weight of the zirconium beads is a significant factor. Therefore, the zirconium beads located below the polished surface of the wheel hub cannot fully utilize their weight advantage, resulting in limited efficiency and wasted resources. Meanwhile, the zirconium beads located above the polished surface may suffer from insufficient pressure, leading to low polishing efficiency. Given that zirconium bead polishing is inherently a time-consuming process, this uneven polishing is undoubtedly one of the key factors affecting overall efficiency.

[0006] Based on this, the present invention discloses an automatic batch grinding processing device and method for wheel hubs. Summary of the Invention

[0007] To address the problems mentioned in the background art, the present invention aims to provide an automatic batch polishing device for wheel hubs. Through the cooperation of a first polishing component and a second polishing component, the entire polishing device rotates during operation, allowing all the zirconium beads originally located within the first polishing component to act on the fine-polished surface of the wheel hub body. Combined with the ability of the flow opening at the center of the mechanical iris device to contract and tightly wrap around the outer periphery of the wheel hub body, the design of the first and second guide plates within the first and second polishing barrels allows the zirconium beads to act more concentratedly on the fine-polished surface of the wheel hub body under the vortex effect generated by the rotation during the polishing process. During the process, the application of a negative pressure pneumatic conveying device allows the zirconium beads to be circulated from the rotary drive assembly back to the first polishing barrel. This increases the heat dissipation of the zirconium beads and further increases the pressure on the polishing surface through the continuous falling zirconium beads, while also improving the fluidity of the zirconium beads. Finally, the combination of the rotation drive assembly and the limiting assembly not only realizes the rotation of the first and second polishing assemblies, but also realizes the longitudinal rotation of the entire device. In addition, its rotation direction is opposite to the rotation direction of the wheel hub body, which relatively increases the rotational speed of the wheel hub body and the relative speed of movement between it and the zirconium beads, thereby improving polishing efficiency and shortening polishing time.

[0008] To achieve the above objectives, the present invention provides an automatic batch polishing device for wheel hubs, used for polishing the wheel hub body; It includes two symmetrically arranged gantry frames, with a first polishing assembly between the two gantry frames. The first polishing assembly has a rotation drive assembly for driving its rotation and a limiting assembly for limiting its movement on both sides. The first polishing assembly is connected to the gantry frame through the rotation drive assembly and the limiting assembly. A conical second polishing assembly is connected to the first polishing assembly. The second polishing assembly is equipped with a mechanical iris device, and a retractable flow port is formed at the center of the mechanical iris device. The gantry frame is also equipped with a support frame, and an arc-shaped guide rail is provided on the support frame. A rotary drive assembly is slidably mounted on the arc-shaped guide rail for driving the hub body to rotate.

[0009] As a further improvement to this technical solution, the first polishing component includes a first polishing barrel, a barrel lid is rotatably connected to the top of the first polishing barrel, and a plurality of first guide plates are uniformly fixedly connected around the center of the inner wall of the first polishing barrel.

[0010] As a further improvement to this technical solution, the self-rotating drive assembly includes a mounting bracket rotatably connected to one of the gantry frames. A first drive motor is fixedly mounted on the mounting bracket. A groove is provided inside the mounting bracket, and a drive gear is rotatably connected to the groove. The output end of the first drive motor is fixedly connected to the drive gear. The drive gear meshes with a driven gear, and the driven gear is fixedly sleeved on the first polishing barrel. A first connecting rod is fixedly connected to the mounting bracket, and the first connecting rod is slidably connected to a circular guide rail, which is fixedly sleeved on the first polishing barrel.

[0011] As a further improvement to this technical solution, the limiting component includes a limiting cylinder, which is fixedly connected to another gantry frame. A rotating column is rotatably connected inside the limiting cylinder. A sliding groove is provided on the limiting cylinder, and a second connecting rod is slidably connected inside the sliding groove. One end of the second connecting rod is fixedly connected to the rotating column, and the other end is slidably connected to the circular guide rail. A limiting rod is detachably connected to the limiting cylinder, and the limiting rod passes through the limiting cylinder and the rotating column to limit the rotation column.

[0012] Preferably, the second polishing assembly includes a second polishing barrel. In the initial state, the second polishing barrel is fixedly connected to the top of the first polishing barrel and communicates with the first polishing barrel. The end of the second polishing barrel away from the first polishing barrel has a smaller diameter than the other end. A plurality of second guide plates are uniformly fixedly connected around the center of the inner wall of the second polishing barrel.

[0013] As a further improvement to this technical solution, both the second guide plate and the first guide plate have an arc-shaped inclined structure. The second guide plate and the first guide plate correspond to each other and are connected, and the connection is a smooth connection.

[0014] Preferably, the rotary drive assembly includes a second drive motor and a mounting barrel. The second drive motor is fixedly connected to the mounting barrel and slidably connected to the arc-shaped guide rail. A mounting plate is provided inside the mounting barrel. In the initial state, the bottom end of the mounting plate is provided with a clamping device for adjusting the clamping radius. The output end of the second drive motor is fixedly connected to the mounting plate, and the opening of the mounting barrel faces downward. There is a gap between the bottom end of the mounting barrel and the mechanical iris device. Positioning pins are detachably connected to the highest and lowest points of the arc-shaped guide rail for limiting the second drive motor.

[0015] As a further improvement to this technical solution, the negative pressure pneumatic conveying device includes a negative pressure power device fixedly connected to the mounting barrel, and a conveying pipe. In the initial state, one end of the conveying pipe is connected to the top of the mounting barrel, and the other end is detachably connected to the bottom of the first polishing barrel. The conveying pipe is rotatably connected to the first polishing barrel. The negative pressure power device is connected to the conveying pipe. A humidifying device is also provided on the conveying pipe for humidifying and cooling the zirconium beads in the conveying pipe. The humidifying device is driven by the negative pressure power device.

[0016] Preferably, a gap is left between the mounting plate and the clamping device and the wheel hub body to allow the zirconium beads to flow through.

[0017] As a further improvement to this technical solution, a gap smaller than the diameter of the zirconium bead is left between the flow port formed at the center of the mechanical iris device and the outer wall of the wheel hub body; and the rotation direction of the wheel hub body is opposite to the rotation direction of the first polishing component.

[0018] The second objective of this invention is to provide a processing method for an automatic batch grinding device for wheel hubs, the specific steps of which are as follows: S1. In the initial state, the rotary drive assembly is located directly above the mechanical iris device, and the polished surface of the hub body is located at the top of the second polishing assembly; S2, Working state: The first polishing component, the second polishing component, the mechanical iris device and the rotary drive component rotate 180 degrees around the arc-shaped guide rail with the self-rotation drive component and the limiting component as the rotation fulcrum. S3. A negative pressure pneumatic conveying device is provided on the first polishing component. The negative pressure pneumatic conveying device is connected to the rotary drive component and the first polishing component respectively, and is used to pump the zirconium beads in the rotary drive component back into the first polishing component. S4. After completing the above process, reset all components, then take out the polished wheel hub, transport it to the designated position through the conveyor device, and then take the next wheel hub to be polished from the conveyor device and repeat the above operation.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In this automatic batch polishing device for wheel hubs, through the cooperation of the first polishing component and the second polishing component, and the setting of the mechanical iris device: In the initial state, the wheel hub body is placed in the rotary drive component, and its fine polished surface is located at the top of the second polishing component. Subsequently, the entire polishing device (including the first polishing component, the second polishing component, the mechanical iris device, and the rotary drive component) rotates 180 degrees around the arc-shaped guide rail with the rotary drive component and the limiting component as the rotation fulcrum, so that the pressure of the zirconium beads is entirely applied to the fine polished surface of the wheel hub body, thereby increasing the number of zirconium beads located above the fine polished surface of the wheel hub. At the same time, the friction is increased by the weight of the zirconium beads, which improves the polishing efficiency. During operation, the mechanical iris device prevents the zirconium beads from flowing out, ensuring the stability of the polishing process. Secondly, in conjunction with the first and second guide plates, several first and second guide plates are uniformly fixedly connected to the inner walls of the first and second polishing barrels, respectively. The two are in an arc-shaped inclined structure and smoothly connected. During the polishing process, under the rotation of the first and second polishing barrels, the zirconium beads slide down along the guide plates to the center position that contacts the polishing surface of the hub body. This increases the eddy current effect, making the pressure of the zirconium beads at the center position greater, further improving the polishing efficiency. At the same time, the smooth connection of the guide plates makes it easier for the zirconium beads to slide down to the center position, increasing the fluidity of the zirconium beads.

[0020] (2) In this automatic batch grinding and processing device for wheel hubs, the self-rotation drive component and the limiting component work together. The self-rotation drive component drives the first polishing barrel to rotate through the meshing of the drive gear and the driven gear. At the same time, the limiting component limits the longitudinal rotation of the entire polishing device. In the working state, after the limiting rod is pulled out, the entire device can be pushed to rotate 180 degrees longitudinally, and then the limiting rod is inserted back to limit it, so that the polishing device can rotate flexibly in the longitudinal direction to adapt to different polishing needs. Secondly, a negative pressure pneumatic conveying device is set up. The negative pressure pneumatic conveying device draws the zirconium beads that flow into the rotation drive component back into the first polishing component. At the same time, the humidification device heats up and cools the zirconium beads. During the drawing process, the negative pressure and the flow increase the heat dissipation and fluidity of the zirconium beads, thus realizing the recycling of zirconium beads and avoiding waste. At the same time, the humidification device increases the humidity and friction of the zirconium beads, further improving the polishing efficiency. Moreover, the negative pressure also helps to increase the fluidity of the zirconium beads, avoiding the problem of low fluidity of zirconium beads in the traditional polishing method.

[0021] (3) In this automatic batch grinding and processing device for wheel hubs, the rotary drive component can rotate around the arc-shaped guide rail through the cooperation of the rotary drive component and the arc-shaped guide rail. The positioning pin limits the rotary drive component. In the initial state or working state, the rotary drive component is limited and fixed. When rotation is required, the positioning pin can be removed, so that the rotary drive component can be flexibly rotated to different positions, which is convenient for polishing special workpieces such as wheel hubs. Attached Figure Description

[0022] Figure 1 This is one of the overall structural schematic diagrams of the present invention; Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 for Figure 1 Enlarged view of the structure at point B; Figure 4 This is one of the overall structural side views of the present invention; Figure 5 This is a second schematic diagram of the overall structure of the present invention; Figure 6 This is a second side view of the overall structure of the present invention; Figure 7 This is a front view of the overall structure of the present invention; Figure 8 for Figure 7 Enlarged view of the structure at point C; Figure 9 This is a second front view of the overall structure of the present invention; Figure 10 This is a cross-sectional view of the structure of the first polishing barrel of the present invention; Figure 11 for Figure 10 Enlarged view of the structure at point D; Figure 12 This is a cross-sectional view of the installation bucket of the present invention; Figure 13 for Figure 12 Enlarged view of the structure at point E in the middle.

[0023] The meanings of the labels in the diagram are as follows: 1. Gantry frame; 2. Support frame; 3. Rotation drive assembly; 4. Limiting assembly; 5. First polishing assembly; 6. Second polishing assembly; 7. Mechanical iris recognition device; 8. Arc-shaped guide rail; 9. Rotation drive assembly; 10. Negative pressure pneumatic conveying device; 11. Hub body; 31. Mounting bracket; 32. First drive motor; 33. Drive gear; 34. Driven gear; 35. First connecting rod; 36. Circular guide rail; 41. Limiting cylinder; 42. Rotating column; 43. Slide groove; 44. Second connecting rod; 45. Limiting rod; 51. First polishing barrel; 52. Barrel lid; 53. First guide plate; 61. Second polishing barrel; 62. Second guide plate; 91. Second drive motor; 92. Mounting bucket; 93. Mounting plate; 94. Clamping device; 95. Positioning pin; 101. Negative pressure power unit; 102. Humidification device; 103. Delivery pipe. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Existing zirconium bead polishing devices waste zirconium beads located below the polished surface of wheel hubs because they cannot act on the surface, while zirconium beads located above the surface have a smaller total mass, which affects polishing efficiency.

[0026] Therefore, the present invention provides an automatic batch grinding and processing device for wheel hubs. See [link / reference] Figures 1-13 As shown, it is used to polish special workpieces such as wheel hub body 11.

[0027] Specifically, it also includes two symmetrically arranged gantry frames 1, with a first polishing component 5 between the two gantry frames 1. A rotation drive component 3 for driving its rotation and a limiting component 4 for limiting its movement are respectively arranged on both sides of the first polishing component 5. The first polishing component 5 is connected to the gantry frame 1 through the rotation drive component 3 and the limiting component 4. A conical second polishing component 6 is connected to the first polishing component 5. A mechanical iris device 7 is provided on the second polishing component 6, with a retractable flow port formed at the center of the mechanical iris device 7. A support 2 is also provided on the gantry frame 1, with an arc-shaped guide rail 8 on the support 2. A rotation drive component 9 is slidably arranged on the arc-shaped guide rail 8 to drive the hub body 11 to rotate. The arc-shaped guide rail 8 and the bracket 2 in this invention are both supported by high-strength steel, which is strong enough to support the entire device. In the initial state, the rotary drive assembly 9 is located directly above the mechanical iris device 7, and the polished surface of the hub body 11 is located at the top of the second polishing assembly 6; In operation, the first polishing component 5, the second polishing component 6, the mechanical iris device 7, and the rotary drive component 9 rotate 180 degrees around the arc-shaped guide rail 8 with the self-rotation drive component 3 and the limiting component 4 as the rotation fulcrum. The first polishing assembly 5 is provided with a negative pressure pneumatic conveying device 10, which is connected to the rotary drive assembly 9 and the first polishing assembly 5 respectively, and is used to pump the zirconium beads in the rotary drive assembly 9 back into the first polishing assembly 5.

[0028] It should be added that, since the present invention mainly improves the polishing device body, the conveying device used in conjunction with this device will not be described or elaborated as a specific structure. Its function is to provide batch processing assistance for polishing, so as to make the polishing efficiency higher. That is, the wheel hub is sent to the vicinity of the polishing device for polishing through the conveying device, and then it is conveyed to the next position.

[0029] Therefore, see [reference] Figure 1 , Figure 4 and Figure 5 , Figure 6 as well as Figures 7-9As shown, for polishing special workpieces in the wheel hub body 11, the present invention adopts the following arrangement: In the initial state, the entire device is arranged from bottom to top as the first polishing component 5, the second polishing component 6, the mechanical iris device 7, and the rotary drive component 9. At this time, the zirconium beads are concentrated in the first polishing component 5. Then, the wheel hub body 11 is placed into the rotary drive component 9 (the specific placement process is described below). Since the fine polishing process mainly focuses on the side of the wheel hub body 11 facing the outside (i.e., the fine polishing surface of the present invention, that is, the side of the wheel hub body 11 away from the chassis is the fine polishing surface, and this side always faces the outside, so special attention needs to be paid to its appearance), the fine polishing surface of the wheel hub body 11 is placed into the top of the second polishing component 6. Then, the mechanical iris device 7 narrows the flow opening, causing it to wrap around the outer perimeter of the wheel hub body 11, preventing the zirconium beads from flowing out during operation. Thus, during operation, Rotate the entire polishing device 180 degrees until it is completely upside down. The pressure of the zirconium beads is entirely on the polished surface of the wheel hub body 11. Under the dual action of the rotation of the first polishing component 5 and the rotation of the wheel hub body 11, the zirconium beads interact with the polished surface of the wheel hub body 11. This increases the friction of the zirconium beads by their own weight. At the same time, the negative pressure pneumatic conveying device 10 circulates and pumps the zirconium beads that have fallen into the rotary drive component 9 back into the first polishing component 5. During the pumping process, due to the negative pressure and the flow, the heat dissipation of the zirconium beads is increased, improving the polishing efficiency. The continuously falling zirconium beads further increase the pressure of the zirconium beads and increase their fluidity. This avoids the low fluidity of zirconium beads in traditional polishing methods, which results in only a small number of zirconium beads interacting with the wheel hub body 11, causing some zirconium beads to wear severely and affecting the polishing efficiency.

[0030] The specific structure of the present invention will be disclosed below, wherein the first polishing assembly 5 includes a first polishing barrel 51, see [link to details]. Figure 10As shown, a lid 52 is rotatably connected to the top of the first polishing barrel 51, and several first guide plates 53 are uniformly fixedly connected around the center of the inner wall of the first polishing barrel 51. The second polishing assembly 6 includes a second polishing barrel 61. Initially, the second polishing barrel 61 is fixedly connected to the top of the first polishing barrel 51 and communicates with it. The end of the second polishing barrel 61 furthest from the first polishing barrel 51 has a smaller diameter than the other end. Several second guide plates 62 are uniformly fixedly connected around the center of the inner wall of the second polishing barrel 61. It should be noted that both the second guide plates 62 and the first guide plates 53 have an arc-shaped inclined structure. The second guide plates 62 and the first guide plates 53 correspond one-to-one and are connected, with a smooth connection at the joint. Thus, in the working state, when zirconium beads are continuously drawn from the rotary drive assembly 9 to the top of the first polishing barrel 51 and then scattered, the first polishing barrel 51 and the second polishing barrel 6... Under the rotation of the first polishing barrel 51, the zirconium beads, under the action of the second guide plate 62 and the first guide plate 53, will have an increased vortex effect, resulting in greater central pressure on the zirconium beads at the center position, i.e., the position where they finally contact the polished surface of the wheel hub body 11. This further increases the polishing efficiency for special workpieces like the wheel hub body 11. The smooth connection between the first guide plate 53 and the second guide plate 62 allows the zirconium beads to slide more easily along the first guide plate 53 and the second guide plate 62 to the center position where they contact the polished surface of the wheel hub body 11 under the rotation of the first polishing barrel 51 and the second polishing barrel 61. This further increases the fluidity of the zirconium beads and also increases the heat dissipation of the zirconium beads. Moreover, the conical structure design of the second polishing barrel 61 is precisely to correspond to the above-mentioned increase in the pressure of the zirconium beads acting on the polishing surface and the improvement of efficiency, so that the zirconium beads concentrate their action at the narrower outlet of the second polishing barrel 61, i.e., the position where they contact the polishing surface.

[0031] It is worth mentioning that, see Figure 11 and Figure 13As shown, a gap smaller than the diameter of the zirconium bead is left between the flow opening formed at the center of the mechanical iris device 7 and the outer wall of the hub body 11; and the rotation direction of the hub body 11 is opposite to the rotation direction of the first polishing component 5; the central position of the mechanical iris device 7 can synchronously contract to form a circular flow opening, which is existing technology, and its specific working principle will not be elaborated here. The material of the retractable flow opening at the center of the mechanical iris device 7 is a hard and wear-resistant alloy material. As for the gap that needs to be left between the flow opening and the outer periphery of the hub body 11, it is mainly because the hub body 11 needs to rotate, and the mechanical iris device 7 also needs to rotate under the drive of the second polishing barrel 61. Therefore, to prevent the hub body 11 from being worn, a gap needs to be left, but the zirconium bead must not fall out of the gap or get stuck, so the gap must be smaller than the diameter of the zirconium bead. At the same time, the rotation direction of the hub body 11 is opposite to the rotation direction of the first polishing component 5, which can further increase the rotation speed of the hub body 11 and the relative motion speed between it and the zirconium bead from the perspective of relative speed, thus further improving the polishing efficiency.

[0032] Further, see Figure 2 and Figure 8As shown, the self-rotating drive assembly 3 includes a mounting bracket 31 rotatably connected to one of the gantry frames 1. A first drive motor 32 is fixedly mounted on the mounting bracket 31. A groove is provided inside the mounting bracket 31, and a drive gear 33 is rotatably connected inside the groove. The output end of the first drive motor 32 is fixedly connected to the drive gear 33. The drive gear 33 meshes with a driven gear 34. The driven gear 34 is fixedly sleeved on the first polishing barrel 51. A first connecting rod 35 is fixedly connected to the mounting bracket 31, and the first connecting rod 35 is slidably connected to a circular guide rail 36. The circular guide rail 36 is fixedly sleeved on the first polishing barrel 51. Secondly, the limiting component 4 includes a limiting cylinder 41, which is fixedly connected to another gantry frame 1. A rotating column 42 is rotatably connected inside the limiting cylinder 41. A sliding groove 43 is provided on the limiting cylinder 41, and a second connecting rod 44 is slidably connected inside the sliding groove 43. One end of the second connecting rod 44 is fixedly connected to the rotating column 42, and the other end is slidably connected to the circular guide rail 36. A limiting rod 45 is detachably connected to the limiting cylinder 41. The limiting rod 45 passes through the limiting cylinder 41 and the rotating column 42 and is used to limit the rotating column 42. Therefore, it can be seen that the entire first polishing barrel 51, second polishing barrel 61, and mechanical iris device 7 can rotate longitudinally via the limiting component 4, and simultaneously rotate under the drive of the rotation drive component 3. However, in the initial or working state, the limiting rod 45 limits the entire first polishing barrel 51, second polishing barrel 61, and mechanical iris device 7. Therefore, in the working state, removing the limiting rod 45 allows the entire device to rotate longitudinally by 180 degrees. Since the driving gear 33 and the driven gear 34 are in a toothed meshing state, the longitudinal rotation... When the meshing state is unaffected, the first connecting rod 35 and the second connecting rod 44 provide fixed support for the entire first polishing barrel 51. After rotating 180 degrees, the limiting rod 45 can be inserted back for limiting. Then, driven by the first drive motor 32, the driven gear 33 drives the driven gear 34 to rotate the first polishing barrel 51. The first connecting rod 35 and the second connecting rod 44 slide in the circular guide rail 36, which can drive the zirconium beads inside the first polishing barrel 51 and the second polishing barrel 61 to flow and rotate, causing them to flow towards the center position and increase the pressure on the polishing surface.

[0033] Furthermore, see Figure 12 and Figure 13As shown, the rotary drive assembly 9 includes a second drive motor 91 and a mounting barrel 92. The second drive motor 91 is fixedly connected to the mounting barrel 92 and slidably connected to the arc-shaped guide rail 8. A mounting plate 93 is provided inside the mounting barrel 92. In the initial state, a clamping device 94 for adjusting the clamping radius is provided at the bottom end of the mounting plate 93. The output end of the second drive motor 91 is fixedly connected to the mounting plate 93, and the opening of the mounting barrel 92 faces downward. There is a gap between the bottom end of the mounting barrel 92 and the mechanical iris device 7. Positioning pins 95 are detachably connected to the highest and lowest points of the arc-shaped guide rail 8 to limit the second drive motor 91. Therefore, the entire rotary drive assembly 9 can rotate around the arc-shaped guide rail 8. However, under the limiting action of the positioning pin 95, it will be limited and fixed in the initial state or working state. When it is necessary to rotate the entire rotary drive assembly 9, the positioning pin 95 can be removed. In addition, due to the conical structure of the second polishing barrel 61, the mounting barrel 92 can rotate independently in the arc-shaped guide rail 8 without being blocked by the narrower end of the second polishing barrel 61. In this way, in the initial state, when the mounting barrel 92 rotates to the bottom, the hub body 11 can be inserted and then rotated back to the top. Then, the mechanical iris device 7 is used to retract and form a wrapping state with the hub body 11. At this time, the entire system rotates during operation without causing the zirconium beads to fall off.

[0034] In addition, participate Figure 3 As shown, the negative pressure pneumatic conveying device 10 includes a negative pressure power unit 101 fixedly connected to the mounting barrel 92, and a conveying pipe 103. Initially, one end of the conveying pipe 103 is detachably connected to the top end inside the mounting barrel 92, and the other end is connected to the bottom end inside the first polishing barrel 51. The conveying pipe 103 is rotatably connected to the first polishing barrel 51. The negative pressure power unit 101 is connected to the conveying pipe 103. A humidifying device 102 is also provided on the conveying pipe 103 for humidifying and cooling the zirconium beads inside the conveying pipe 103. The humidifying device 102 is driven by the negative pressure power unit 101. Therefore, in the working state, the flow... The zirconium beads, once placed in the mounting tank 92, are drawn in by the negative pressure of the negative pressure power device 101 and transported to the top of the first polishing tank 51 via the conveying pipe 103. During this process, the humidification device 102 cools the zirconium beads and increases the humidity, further increasing the friction of the zirconium beads and improving polishing efficiency. In addition, the working principle of the humidification device 102 and the negative pressure power device 101 is a mature existing technology, which can ensure that the zirconium beads in the conveying pipe 103 flow directly from the mounting tank 92 into the first polishing tank 51. Furthermore, it can work in conjunction with the cooling and humidification effects of the humidification device 102. Further details are omitted here.

[0035] In summary, in the initial state, the polishing surface of the wheel hub body 11 is placed inside the top of the second polishing barrel 61 by the entire first polishing assembly 5 and the second polishing assembly 6 in conjunction with the mechanical iris device 7. Then, the entire device is rotated longitudinally, causing the original device to turn downwards. As a result, the zirconium beads in the first polishing barrel 51 and the second polishing barrel 61 will automatically fall and gather in the central area. Then, with the drive of the first drive motor 32 and the second drive motor 91, the wheel hub body 11 and the first polishing barrel 51 and the second polishing barrel 61 rotate in opposite directions. With the first guide plate 53 and the second guide plate 62 in the first polishing barrel 51 and the second polishing barrel 61, the kinetic energy of the zirconium beads and the pressure at the center position are increased, so that they directly and completely act on the polishing surface. At the same time, the negative pressure pneumatic conveying device 10 circulates, dissipates heat and humidifies the zirconium beads, thereby effectively solving the problem that existing zirconium bead polishing devices cannot contribute to the polishing of the wheel hub's fine polishing surface, resulting in wasted zirconium beads located below the fine polishing surface, and the zirconium beads located above the fine polishing surface have a smaller total mass, affecting the polishing efficiency.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic batch grinding and processing device for wheel hubs, used for grinding and processing wheel hub bodies (11), characterized in that: It also includes two sets of gantry frames (1) arranged symmetrically, with a first polishing component (5) between the two sets of gantry frames (1), a self-rotation drive component (3) and a limiting component (4) respectively on both sides of the first polishing component (5), a conical second polishing component (6) connected to the first polishing component (5), a mechanical iris device (7) on the second polishing component (6), and a retractable flow port formed in the center of the mechanical iris device (7); A bracket (2) is also provided on the gantry (1), an arc-shaped guide rail (8) is provided on the bracket (2), and a rotary drive assembly (9) is slidably provided on the arc-shaped guide rail (8).

2. The automatic batch grinding and processing device for wheel hubs according to claim 1, characterized in that: The first polishing assembly (5) includes a first polishing barrel (51), a barrel lid (52) is rotatably connected to the top of the first polishing barrel (51), and a plurality of first guide plates (53) are uniformly fixedly connected around the center of the inner wall of the first polishing barrel (51).

3. The automatic batch grinding and processing device for wheel hubs according to claim 2, characterized in that: The self-rotating drive assembly (3) includes a mounting bracket (31) rotatably connected to one of the gantry frames (1). A first drive motor (32) is fixedly mounted on the mounting bracket (31). A groove is provided in the mounting bracket (31), and a drive gear (33) is rotatably connected in the groove. The output end of the first drive motor (32) is fixedly connected to the drive gear (33). The drive gear (33) meshes with a driven gear (34). The driven gear (34) is fixedly sleeved on the first polishing barrel (51). A first connecting rod (35) is fixedly connected to the mounting bracket (31), and the first connecting rod (35) is slidably connected to a circular guide rail (36). The circular guide rail (36) is fixedly sleeved on the first polishing barrel (51).

4. The automatic batch grinding and processing device for wheel hubs according to claim 3, characterized in that: The limiting component (4) includes a limiting cylinder (41), which is fixedly connected to another gantry frame (1). A rotating column (42) is rotatably connected inside the limiting cylinder (41). A sliding groove (43) is provided on the limiting cylinder (41). A second connecting rod (44) is slidably connected inside the sliding groove (43). One end of the second connecting rod (44) is fixedly connected to the rotating column (42), and the other end is slidably connected to the circular guide rail (36). A limiting rod (45) is detachably connected to the limiting cylinder (41). The limiting rod (45) passes through the limiting cylinder (41) and the rotating column (42) to limit the rotating column (42).

5. The automatic batch grinding and processing device for wheel hubs according to claim 2, characterized in that: The second polishing assembly (6) includes a second polishing barrel (61). In the initial state, the second polishing barrel (61) is fixedly connected to the top of the first polishing barrel (51) and communicates with the first polishing barrel (51). The end of the second polishing barrel (61) away from the first polishing barrel (51) has a smaller diameter than the other end. A plurality of second guide plates (62) are uniformly fixedly connected around the center of the inner wall of the second polishing barrel (61).

6. The automatic batch grinding and processing device for wheel hubs according to claim 5, characterized in that: The second guide plate (62) and the first guide plate (53) are both arc-shaped inclined structures. The second guide plate (62) and the first guide plate (53) correspond to each other and are connected. The connection is a smooth connection.

7. The automatic batch grinding and processing device for wheel hubs according to claim 2, characterized in that: The rotary drive assembly (9) includes a second drive motor (91) and a mounting barrel (92). The second drive motor (91) is fixedly connected to the mounting barrel (92) and slidably connected to the arc-shaped guide rail (8). A mounting plate (93) is provided inside the mounting barrel (92). In the initial state, a clamping device (94) for adjusting the clamping radius is provided at the bottom end of the mounting plate (93). The output end of the second drive motor (91) is fixedly connected to the mounting plate (93). The opening of the mounting barrel (92) faces downward. There is a gap between the bottom end of the mounting barrel (92) and the mechanical iris device (7). The highest and lowest points of the arc-shaped guide rail (8) are detachably connected to positioning pins (95) for limiting the second drive motor (91).

8. The automatic batch grinding and processing device for wheel hubs according to claim 7, characterized in that: The negative pressure pneumatic conveying device (10) includes a negative pressure power device (101) fixedly connected to the mounting barrel (92), and a conveying pipe (103). In the initial state, one end of the conveying pipe (103) is detachably connected to the top end inside the mounting barrel (92), and the other end is connected to the bottom end inside the first polishing barrel (51). The conveying pipe (103) is rotatably connected to the first polishing barrel (51). The negative pressure power device (101) is connected to the conveying pipe (103). A humidifying device (102) is also provided on the conveying pipe (103) for humidifying and cooling the zirconium beads inside the conveying pipe (103). The humidifying device (102) is driven by the negative pressure power device (101). A gap is left between the mounting plate (93) and the clamping device (94) and the hub body (11) to allow zirconium beads to pass through.

9. The automatic batch grinding and processing device for wheel hubs according to claim 8, characterized in that: The flow port formed at the center of the mechanical iris device (7) has a gap smaller than the diameter of the zirconium bead between it and the outer wall of the hub body (11); and the rotation direction of the hub body (11) is opposite to the rotation direction of the first polishing component (5).

10. A method for automatic batch grinding of wheel hubs, comprising using the automatic batch grinding device for wheel hubs as described in any one of claims 1-9, characterized in that: The specific steps include: S1, Initial state, the rotary drive assembly (9) is located directly above the mechanical iris device (7), and the polished surface of the hub body (11) is located at the top of the second polishing assembly (6); S2, Working state, the first polishing component (5), the second polishing component (6), the mechanical iris device (7) and the rotary drive component (9) rotate 180 degrees around the arc-shaped guide rail (8) with the self-rotation drive component (3) and the limiting component (4) as the rotation fulcrum; S3. A negative pressure pneumatic conveying device (10) is provided on the first polishing component (5). The negative pressure pneumatic conveying device (10) is connected to the rotary drive component (9) and the first polishing component (5) respectively, and is used to pump the zirconium beads in the rotary drive component (9) back into the first polishing component (5). S4. After completing the above process, reset all components, then take out the polished wheel hub, transport it to the designated position through the conveyor device, and then take the next wheel hub to be polished from the conveyor device and repeat the above operation.

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