Wheel hub polishing device

Abstract

A wheel hub polishing device comprises: a rotary mechanism, a picking mechanism, an end face polishing mechanism, a side face polishing mechanism, a fine polishing mechanism, a retracting mechanism, a loading conveyor belt, a unloading conveyor belt and a control device; the rotary mechanism is fixedly mounted on a frame, a turntable is provided on the rotary mechanism, and a plurality of cylinders are evenly and fixedly connected to the turntable; picking mechanisms corresponding to the number of cylinders are rotatably and slidably mounted on the turntable, and the picking mechanisms are rotatably connected to the output shafts of the corresponding cylinders; the rotation of the rotary mechanism drives a plurality of picking mechanisms to intermittently cooperate and connect with the loading conveyor belt, the end face polishing mechanism, the side face polishing mechanism, the fine polishing mechanism, the retracting mechanism and the unloading conveyor belt in sequence; the control device controls the operation of the entire wheel hub polishing device; compared with the existing wheel hub polishing technology, the present invention has a higher degree of automation and a higher effect, and the operator only needs to pick up and place the wheel hub beside the loading conveyor belt and the unloading conveyor belt.

Description

Technical Field

[0001] The invention relates to the technical field of automobile wheel hub polishing equipment, and in particular to a wheel hub polishing device. Background Art

[0002] In the production and manufacturing of wheel hubs, many burrs, chamfered edges and scales are generated after the wheels are cast. The wheel hubs need to be polished to remove the burrs, chamfered edges and scales to improve the quality of the product. Since manual polishing cannot guarantee the processing accuracy of the wheel hub and the work efficiency is relatively low, and the metal powder generated during polishing will cause harm to the human body, a wheel hub polishing device is needed. The device can polish multiple wheel hubs at a time to improve the polishing efficiency. At the same time, it fully adopts automatic work to perform end face polishing, side polishing and fine polishing on the wheel hub, improve the polishing quality, save manpower, and collect the waste powder generated during polishing in time to ensure human health;

[0003] For example, the Chinese invention patent with patent number: CN112809540 A discloses a multi-station disc-type new automobile wheel hub CNC polishing machine, including a workbench, a rotary seat, a rotary device, a wheel hub fixture, a first frame, a first polishing device, a second frame and a second polishing device. The beneficial effect is that the first polishing device and the second polishing device improve the work efficiency to a certain extent. However, the technical solution of the invention still has certain deficiencies. During the polishing process of the multi-station disc-type new automobile wheel hub CNC polishing machine disclosed in the invention, when the first polishing device finishes polishing the upper end face of the wheel hub, the first polishing device needs to be moved upward and then rotated to make the first polishing device away from the upper end face of the wheel hub, and then the wheel hub on the wheel hub fixture is manually turned over, and then the first polishing device is reset to polish the bottom surface of the wheel hub. The degree of automation is low and the efficiency is slow.

[0004] Therefore, it is imperative to invent a wheel hub polishing device with a high degree of automation that can greatly improve work efficiency. Summary of the invention

[0005] In order to solve the problems in the background technology, the present invention provides a hub polishing device, and the specific technical solution is as follows:

[0006] A wheel hub polishing device comprises: a rotary mechanism, a picking mechanism, an end face polishing mechanism, a side face polishing mechanism, a fine polishing mechanism, a retracting mechanism, a loading conveyor belt, a unloading conveyor belt and a control device; the rotary mechanism is fixedly mounted on a frame, a turntable is provided on the rotary mechanism, and a plurality of cylinders are evenly and fixedly connected to the turntable; picking mechanisms corresponding to the number of cylinders are rotatably and slidably mounted on the turntable, and the picking mechanisms are rotatably connected to the output shafts of the corresponding cylinders; the rotation of the rotary mechanism drives a plurality of picking mechanisms to intermittently cooperate and connect with the loading conveyor belt, the end face polishing mechanism, the side face polishing mechanism, the fine polishing mechanism, the retracting mechanism and the unloading conveyor belt in sequence; the control device controls the operation of the entire wheel hub polishing device.

[0007] Furthermore, the rotating mechanism is also provided with a motor and a rotating shaft; a vertical rotating shaft is provided in the middle position of the turntable; the lower end of the rotating shaft is rotatably mounted on the motor mounting frame and connected to the motor output end in the motor mounting frame; the motor mounting frame is fixedly mounted on the frame.

[0008] Furthermore, the picking mechanism is provided with a clip, a gear, a rack, a connecting rod, a connecting block, a rope, a positioning rod, a rotating wheel 1, a compression spring and a rotating wheel 2; the connecting rod is rotatably and slidably mounted on the turntable, and is rotatably connected to the output end of the cylinder, and a slide groove is provided at the lower end; the gear is fixedly mounted on the connecting rod; the rack is slidably mounted in the slide groove of the connecting rod; the connecting block is fixedly mounted on the bottom end of the connecting rod, and an opening is provided at the upper end, and a groove connected to the opening is provided at the lower end; the upper ends of the two clips are symmetrically slidably mounted in the groove of the connecting block, and a compression spring is installed between the two; the rotating wheel 1 is rotatably mounted on any one of the clips; the rotating wheel 2 is rotatably mounted inside the connecting block, and corresponds to the rotating wheel 1 in a vertical plane; one end of the rope is fixedly connected to the rack, and the other end passes through the opening of the connecting block and successively bypasses the rotating wheel 2 and the rotating wheel 1 and is fixedly connected to another clip; the positioning rod is arranged in parallel with the clip and fixedly connected to one side of the connecting block.

[0009] Furthermore, the end face polishing mechanism is provided with a large gear, a second motor, a bracket, an electric bidirectional lead screw device, a limit block, a cam, a first motor, a mounting base plate, a polishing head, a collection box and a vertical plate; the lower end of the bracket is fixedly mounted on the mounting base plate, and the upper end is mounted with a second motor, the output end of the second motor is connected with a large gear, and the large gear is intermittently meshed with the gear; the mounting base plate is fixedly mounted on the frame; a vertical mounting column is provided at the rear side of the mounting base plate, and a first motor is fixedly mounted on the upper end of the mounting column, and the output end of the first motor is connected to the cam, and the upper and lower end surfaces of the cam are symmetrically provided with sliding grooves consistent with the shape of the cam; the mounting base plate is located on one side of the turntable and is slidably connected to the collection box, and a vertical plate is fixedly mounted on the collection box at a position corresponding to the cam, and a limit block symmetrically mounted on the rear side surface of the vertical plate, a limit block is provided on the limit block, and the limit column is slidably mounted in the slide groove on the cam;

[0010] An electric bidirectional lead screw device is fixedly installed on the front side of the vertical plate, the electric bidirectional lead screw device is located inside the collecting box, and two polishing heads that move synchronously in opposite directions up and down are slidably installed on the lead screw.

[0011] Furthermore, the side polishing mechanism is provided with a large gear 1, a motor 3, a bracket 1, a mounting bracket, a clamping device, a semicircular cover, a vacuum cleaner, a mounting base plate 1 and a polishing module; a lower end of the bracket is fixedly mounted on the mounting base plate 1, and a motor 3 is mounted on the upper end, the output end of the motor 3 is connected to a large gear 1, and the large gear 1 is intermittently meshed with the gear; the mounting base plate 1 is fixedly mounted on the frame; the mounting bracket is an inverted L-shaped bracket, one end of the bracket is fixedly connected to the mounting base plate 1, and the other end is fixedly connected to the vertically placed semicircular cover, and the opening of the semicircular cover faces the turntable; a waste collection platform is provided at the bottom end of the semicircular cover, a leakage hole is provided at the bottom of the platform, and an opening is provided in the middle of the semicircular cover; one end of the clamping device is fixed to the frame or the mounting bracket, and the other end passes through the opening of the semicircular cover and is fixedly connected to the polishing module, and the polishing block is used for polishing the side of the wheel hub; the vacuum cleaner is fixedly mounted on the frame, and the suction head is airtightly connected to the leakage hole of the waste platform at the bottom end of the semicircular cover.

[0012] Furthermore, the fine polishing mechanism is provided with a water spray device and a grinding device; the water spray device is provided with a fixed ring, a fourth motor, a lead screw, a slider, a double-layer ring, a water tank and a rotating device; the water tank is fixedly mounted on the frame; one end of the fixed ring is fixedly mounted on the upper end of the water tank; the double-layer ring is rotatably mounted on the fixed ring, at least one section of slide groove is provided between the upper and lower rings, and a connecting ear is provided at the lower outer end; the fourth motor is rotatably mounted on the fixed ring and is located on the outer side of the double-layer ring, and the lead screw is connected to the output end of the fourth motor; the slider is slidably mounted on the lead screw, and a rotating shaft is provided at the bottom end, and is rotatably mounted on the connecting ear of the double-layer ring through the rotating shaft; one end of a plurality of the rotating devices is rotatably mounted on the fixed ring, and the other end of each rotating device is slidably and rotatably connected to a corresponding section of slide groove in the double-layer ring;

[0013] The sanding device is provided with a storage barrel, a hollow barrel, a motor six, a circumferential rack, a pinion one and a shaking device; the shaking device is fixedly mounted on the frame, the hollow barrel is fixedly mounted on the shaking device, and a drainage pipe is connected to the lower end, the storage barrel is rotatably mounted on the hollow barrel, and a fine net is provided at the lower end inside, the circumferential rack is fixedly mounted on the outside of the storage barrel, the motor six is ​​fixedly mounted on the shaking device, a pinion one is fixedly mounted on the output end, and the pinion one is meshed with the circumferential rack.

[0014] Furthermore, the rotating device is provided with a support plate, a motor five, a rotating slider, a cam, a sliding rod, a rotating shaft, a belt, a cover and a two-way nozzle; the two ends of the support plate are respectively fixed with a motor five and a two-way nozzle which is symmetrical up and down, and one end of the motor five is rotatably connected to the fixed ring; the rotating slider is slidably arranged on the support plate and is rotatably connected to the double-layer ring; the rotating shaft penetrates and is rotatably installed on the support plate, and is connected to the motor five set through a belt; a cam is fixedly installed at each end of the rotating shaft; the two cams are arranged horizontally, and the surfaces are provided with sliding grooves consistent with the shape of the cams; the two sliding rods are vertically slidably arranged on the upper and lower surfaces of the support plate, and are both located between the rotating shaft and the two-way nozzle; the other end of each sliding rod is slidably connected to the sliding groove on the corresponding cam; a cover matching the two-way nozzle is fixedly installed on the side of each sliding rod close to the two-way nozzle.

[0015] Furthermore, the retracting and releasing mechanism is provided with a motor eight, a rotating shaft three, a bracket two, a belt group, a pinion four, a bracket three and a rotating shaft three; the two brackets three are fixedly mounted on a unloading conveyor belt or a frame, the motor eight is fixedly mounted on one side of the bracket three, one end of the rotating shaft three is fixedly connected to the output end of the motor eight, and the other end is rotatably connected to another bracket three; the bracket two is fixedly mounted on the bracket three; one end of the rotating shaft three is rotatably connected to the bracket two, and the other end is fixedly connected to the pinion four, and is connected to the rotating shaft three through a belt group; the pinion four is intermittently meshed with the rack.

[0016] Furthermore, the clamping device is provided with spring four and support rods; one end of each of the support rods is slidably connected to the vertical rod of the mounting bracket, and the other end is fixedly connected to the punching module; and spring four is sleeved on the support rods located between the vertical rod of the mounting bracket and the punching module.

[0017] Furthermore, the shaking device is provided with a motor seven, a mounting bracket one, a crank wheel, a connecting rod, a shaking frame, a transmission shaft, a spring two, a slider, a spring three, a support plate two and a rotating shaft; the mounting bracket one is fixedly mounted on the frame, the rotating shaft is rotatably mounted on the mounting bracket one, and is driven by a motor seven fixedly mounted on the mounting bracket one; the two ends of the rotating shaft are fixedly connected with crank wheels; the two support plates two are symmetrically fixedly mounted on the mounting bracket one, and the support plate two is provided with a plurality of slide grooves, and slide grooves are slidably mounted inside the slide grooves; the spring three is fixedly connected to the slide grooves of the slide block and the support plate two; one end of the plurality of transmission shafts is fixedly mounted on the shaking frame, and the other end is slidably mounted on the slider, and the transmission shaft between the shaking frame and the slider is sleeved with a spring two; the two connecting rods are symmetrically rotatably mounted between the crank wheel and the shaking frame;

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) The rotary mechanism, the taking mechanism, the end face polishing mechanism, the side face polishing mechanism, the fine polishing mechanism, the retracting mechanism, the loading conveyor belt, the unloading conveyor belt and the control device of the present invention are used in coordination. The operator only needs to take and place the wheel hub beside the loading conveyor belt and the unloading conveyor belt, thereby improving the degree of automation of polishing;

[0020] (2) The present invention can polish the upper and lower end faces of the hub simultaneously through the cooperation of the picking mechanism and the end face polishing mechanism, without the need for manual flipping;

[0021] (3) The present invention can polish multiple wheel hubs at the same time through the rotating mechanism, thereby improving the polishing efficiency of the wheel hubs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 , Figure 4 It is a schematic diagram of the structure of the taking mechanism of the present invention.

[0024] Figure 3 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0025] Figure 5 For the present invention Figure 4Schematic diagram of the local enlarged structure at point B in the middle.

[0026] Figure 6 It is a schematic diagram of the structure of the rotary mechanism of the present invention.

[0027] Figure 7 It is a schematic diagram of the coordination structure of the taking mechanism and the end face polishing mechanism of the present invention.

[0028] Figure 8-Figure 9 It is a schematic diagram of the structure of the end surface polishing mechanism of the present invention.

[0029] Fig.10 It is a schematic diagram of the coordination structure of the taking mechanism and the side polishing mechanism of the present invention.

[0030] Figure 11-Figure 12 It is a schematic diagram of the structure of the side polishing mechanism of the present invention.

[0031] Fig.13 It is a schematic diagram of the coordination structure of the taking mechanism and the fine polishing mechanism of the present invention.

[0032] Figure 14-17 It is a schematic diagram of the structure of the fine polishing mechanism of the present invention.

[0033] Fig.18 It is a schematic diagram of the coordination structure of the taking mechanism and the retracting mechanism of the present invention.

[0034] Fig.19 It is a schematic diagram of the structure of the taking mechanism of the present invention.

[0035] Fig. 20 It is a schematic diagram of the protective frame structure of the present invention.

[0036] Fig.21 It is a schematic diagram of the connection between the control device and the electrical components of the present invention.

[0037] In the figure:

[0038] 1-rotating mechanism, 101-motor, 102-turntable, 103-cylinder, 104-rotating shaft

[0039] 2-taking mechanism, 201-clip, 202-gear, 203-rack, 204-connecting rod, 205-connecting block, 206-rope, 207-positioning rod, 208-rotating wheel 1, 209-compression spring, 210-rotating wheel 2;

[0040] 3-end polishing mechanism, 301-large gear, 302-motor 2, 303-bracket, 304-electric bidirectional screw device, 305-baffle, 306-limit block, 307-cam, 308-motor 1, 309-mounting base plate, 310-polishing head, 311-collection box, 312-vertical plate;

[0041] 4-side polishing mechanism, 401-large gear 1, 402-motor 3, 403-bracket 1, 404-mounting bracket; 40-clamping device: 405-support rod, 406-spring; 407-semicircular cover, 408-vacuum cleaner, 409-mounting base plate 1, 410-beating module, 411-mounting block;

[0042] 5-fine polishing mechanism, 51-water spray device, 5101-fixed ring, 5102-motor four, 5103-screw, 5104-slider one, 5105-double-layer ring, 5106-water tank, 53 rotating device, 5301-support plate, 5302-motor five, 5303-rotating slider, 5304-cam, 5305-sliding rod, 5306-rotating shaft, 5307-belt, 5308-capping, 5309-bidirectional nozzle; 52 grinding device: 520 1-storage barrel, 5202-hollow barrel, 5203-motor six, 5204-circumferential rack, 5205-pinion one, 5206-motor seven, 5207-pinion two, 5208-pinion three, 5209-mounting bracket one, 5210-crank wheel, 5211-connecting rod, 5212-rocking frame, 5213-transmission shaft, 5214-spring two, 5215-slider, 5216-spring three, support plate two (5217), rotating shaft (5218);

[0043] 6-retracting and releasing mechanism, 601-motor eight, 602-rotating shaft three, 603-bracket two, 604 belt set, 605-pinion four, 606-bracket three, 607-rotating shaft four;

[0044] 7-Protective frame. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0046] Example:

[0047] like Figure 1As shown, a wheel hub polishing device comprises: a rotary mechanism 1, a picking mechanism 2, an end face polishing mechanism 3, a side face polishing mechanism 4, a fine polishing mechanism 5, a retracting mechanism 6, a loading conveyor belt, a unloading conveyor belt and a control device; the rotary mechanism 1 is fixedly mounted on a frame, and a turntable 102 is provided on the rotary mechanism 1, and a plurality of cylinders 103 are evenly distributed and fixedly connected to the turntable 102; picking mechanisms 2 corresponding to the number of cylinders 103 are rotatably and slidably mounted on the turntable 102, and the picking mechanisms 2 are rotatably connected to the output shafts of the corresponding cylinders 103; the rotary mechanism 1 rotates to drive the plurality of picking mechanisms 2 to intermittently cooperate with the loading conveyor belt, the end face polishing mechanism 3, the side face polishing mechanism 4, the fine polishing mechanism 5, the retracting mechanism 6 and the unloading conveyor belt in sequence.

[0048] Specifically, the rotary mechanism 1 is also provided with a motor 101 and a rotating shaft 104; a vertical rotating shaft 104 is provided in the middle of the turntable 102; the lower end of the rotating shaft 104 is rotatably mounted on the motor mounting frame and connected to the output end of the motor 101 in the motor mounting frame; the motor mounting frame is fixedly mounted on the frame.

[0049] As a specific implementation of this embodiment, Figure 6 As shown, there are 5 brackets on the turntable 102, and a vertical rotating shaft 104 is provided in the middle of the turntable; the lower end of the rotating shaft 104 is rotatably mounted on the motor mounting frame, and is connected to the output end of the motor 101 in the motor mounting frame; the motor mounting frame is fixedly mounted on the mounting plate; the cylinder 103 is vertically mounted on each bracket, and a cross plate is provided on the output end, and the other end of the cross plate is rotatably connected to the connecting rod 204.

[0050] Specifically, the taking mechanism 2 is provided with a clip 201, a gear 202, a rack 203, a connecting rod 204, a connecting block 205, a rope 206, a positioning rod 207, a rotating wheel 1 208, a compression spring 209 and a rotating wheel 2 210; the connecting rod 204 slides through the bracket body, and is rotatably connected with the bracket, and is rotatably connected with the cross plate at the output end of the cylinder 103, and a slide groove is provided at the lower end; the gear 202 is fixedly mounted on the connecting rod 204; the rack 203 is slidably mounted in the slide groove of the connecting rod 204; the connecting block 205 is fixedly mounted at the bottom end of the connecting rod 204, and an opening is provided at the upper end, and a groove connected to the opening is provided at the lower end; The upper ends of the two clips 201 are symmetrically slidably installed in the grooves of the connecting block 205, and a compression spring 209 is installed between the two; the rotating wheel 1 208 is rotatably installed on any one of the clips 201; the rotating wheel 210 is rotatably installed in the middle position inside the connecting block 205, and corresponds to the rotating wheel 1 208 in the vertical plane; one end of the rope 211 is fixedly connected to the rack 203, and the other end passes through the opening of the connecting block 205 and successively bypasses the rotating wheel 210 and the rotating wheel 1 208 and is fixedly connected to the other clip 201; the positioning rod 207 is arranged parallel to the clip 201 and is fixedly connected to one side of the connecting block 205.

[0051] Specifically, the feeding conveyor belt stops moving after conveying the wheel hub to the specified position, the motor 101 starts, drives the rotating shaft 104 to rotate, and then drives the rotating disk 102 to rotate, and then drives the cylinder 103 and the picking mechanism 2 to rotate. When the picking mechanism 2 rotates to the square of the wheel hub, the rotating disk 102 stops rotating, and then the cylinder 103 starts, drives the connecting rod 204 to move downward, and then drives the picking mechanism 2 to move downward as a whole. When the lower end of the clamp 201 contacts the central through hole of the wheel hub, the wheel hub squeezes the clamping head position of the clamp 201, and then the clamp 201 slides toward each other in the connecting block 205. At this time, under the push of the cylinder 103, the clamp 201 continues to It moves downward, and then is squeezed by the central through hole of the wheel hub to make the clip continue to slide in the connecting block 205. When the distance between the clamping heads of the two clamps 201 is smaller than the central through hole of the wheel hub, the clamp 201 enters the center of the wheel hub, and the taking mechanism 2 continues to move downward. The positioning rod 207 enters the threaded hole next to the central through hole of the wheel hub to limit the wheel hub. When the clamping head of the clamp 201 passes through the central through hole of the wheel hub, it is reset under the action of the compression spring 209, and the clamping head is clamped under the central through hole of the wheel hub. Then the cylinder 103 resets and moves upward, driving the connecting rod 204 to move upward, and then driving the clamp 201 to move upward, and then driving the wheel hub to move upward;

[0052] Specifically, Figure 7-Figure 9The end surface polishing mechanism 3 is provided with a large gear 301, a second motor 302, a bracket 303, an electric bidirectional screw device 304, a limit block 306, a cam 307, a motor 1 308, a mounting base 309, a polishing head 310, a collecting box 311 and a vertical plate 312; the lower end of the bracket 303 is fixedly mounted on the mounting base 309, and the upper end is mounted with the second motor 302, the output end of the second motor 302 is connected with the large gear 301, and the large gear 301 is intermittently meshed with the gear 202; the mounting base 309 is fixedly mounted on the frame; the rear side position of the mounting base 309 A vertical mounting column is provided, a motor 308 is fixedly installed on the upper end of the mounting column, the output end of the motor 308 is connected to the cam 307, and the upper and lower ends of the cam 307 are symmetrically provided with sliding grooves consistent with the shape of the cam 307; the mounting bottom plate 309 is located on one side of the turntable 102 and is slidably connected to the collection box 311, and a vertical plate 312 is fixedly installed on the collection box 311 at a position corresponding to the cam 307, and a vertically symmetrical limit block 306 is fixedly installed on the rear of the vertical plate 312, and a limit column is provided on the limit block 306, and the limit column is slidably installed in the slide groove on the cam 307;

[0053] An electric bidirectional lead screw device 304 is fixedly mounted on the front side of the vertical plate 312 . The electric bidirectional lead screw device 304 is located inside the collecting box 311 , and two polishing heads 310 are slidably mounted on the lead screw so as to move synchronously in opposite directions up and down.

[0054] As a specific implementation of this embodiment, the end surface polishing mechanism 3 is further provided with a baffle 305, which is fixedly mounted on the upper end of the vertical plate 312, and an opening is provided on the baffle 305, which faces the direction of the turntable 102;

[0055] Specifically, after the cylinder 103 is reset, the turntable 102 drives the picking mechanism 2 to rotate, and then drives the wheel hub to rotate. When the gear 202 is meshed with the large gear 301, the turntable 102 stops rotating. At this time, the upper and lower end surfaces of the wheel hub are located between the two polishing heads 310. The electric two-way screw device 304 is started, driving the polishing head 310 to move to the upper and lower end surfaces of the wheel hub and then stop rotating. During polishing, the motor 302 drives the large gear 301 to rotate, and then drives the gear 202 to rotate, and then drives the connecting rod 204 to rotate, and then drives The movable connecting block 205 rotates, thereby driving the positioning rod 207 to rotate, and the positioning rod 207 drives the wheel hub to rotate. When both ends of the wheel hub are polished, the motor 308 drives the cam 307 to rotate slowly, and the limit block 306 slides in the slide groove on the cam 307, pushing the vertical plate 312 to move, thereby driving the electric bidirectional screw device 304 to drive the polishing head 310 to move slowly to a position close to the center of the wheel hub to polish the end face of the wheel hub. The movement of the vertical plate 312 simultaneously drives the baffle 305 and the collection box 311 to move to collect waste generated during the polishing of the wheel hub.

[0056] Specifically, Figure 10-12 The side polishing mechanism 4 is provided with a large gear 401, a motor 402, a bracket 403, a mounting bracket 404, a clamping device 40, a semicircular cover 407, a vacuum cleaner 408, a mounting base plate 409 and a beating module 410; the lower end of the bracket 403 is fixedly mounted on the mounting base plate 409, and the upper end is mounted with a motor 402, the output end of the motor 402 is connected with a large gear 401, and the large gear 401 is intermittently meshed with the gear 202; the mounting base plate 409 is fixedly mounted on the frame; the mounting bracket 404 is an inverted L-shaped bracket, one end of the bracket is fixedly connected to the middle position of the mounting base plate 409, and the other end It is fixedly connected to the upper end of the middle position of the vertically placed semicircular cover 407, and the opening of the semicircular cover 407 faces the turntable 102; a waste collection platform is provided at the bottom of the semicircular cover 407, a leak is provided at the bottom of the platform, and an opening a is provided in the middle of the semicircular cover; one end of the clamping device 40 is fixed to a vertically placed rod of the frame or mounting bracket 404, and the other end passes through the opening a of the semicircular cover 407 and is fixedly connected to the polishing module 410, the position of the polishing block 410 corresponds to the position of the wheel hub during polishing, and is used for polishing the side of the wheel hub; the vacuum cleaner 408 is fixedly installed on the frame, and the suction head is airtightly connected to the leak of the waste platform at the bottom of the semicircular cover 407;

[0057] Specifically, when the end face of the wheel hub is polished, the motor 101 is started, driving the turntable 102 to rotate, and then driving the picking mechanism 2 to rotate, and then driving the wheel hub to rotate. When the gear 202 is meshed with the large gear 1 401, it stops rotating. At this time, due to the action of the clamping device 40, the grinding block 410 is fitted with the outer side of the wheel hub. Then, the motor 3 402 is started, driving the large gear 1 401 to rotate, and then driving the gear 202 to rotate, and then driving the wheel hub to rotate, and the side of the wheel hub is polished. The semicircular cover 407 covers the grinding block 410 to ensure that the debris does not fly around during polishing. At the same time, the vacuum cleaner 408 works to suck away and collect the debris generated during the polishing of the wheel hub;

[0058] Specifically, Figure 13-Figure 17As shown, the fine polishing mechanism 5 is provided with a water spray device 51 and a grinding device 52; the water spray device 51 is provided with a fixed ring 5101, a motor 4 5102, a lead screw 5103, a slider 1 5104, a double-layer ring 5105, a water tank 5106 and a rotating device 53; the water tank 5106 is fixedly installed on the frame; one end of the fixed ring 5101 is fixedly installed on the upper end of the water tank 5106; the double-layer ring 5105 is rotatably installed on the fixed ring 5101, and at least one slide groove is provided between the upper and lower rings. In this embodiment, three slide grooves are provided between the upper and lower rings, and the outer lower end A connecting ear is provided; the motor 4 5102 is rotatably mounted on the fixed ring 5101 and is located outside the double-layer ring 5105, and the lead screw 5103 is connected to the output end of the motor 4 5102; the slider 1 5104 is slidably mounted on the lead screw 5103, and a rotating shaft is provided at the bottom end, and is rotatably mounted on the connecting ear of the double-layer ring 5105 through the rotating shaft; one end of a plurality of rotating devices 53 is rotatably mounted on the fixed ring 5101, and the other end of each rotating device 53 is slidably and rotatably connected to a corresponding section of the slide groove in the double-layer ring 5105, and in this embodiment, there are three rotating devices 53;

[0059] The sanding device 52 is provided with a storage barrel 5201, a hollow barrel 5202, a motor six 5203, a circumferential rack 5204, a pinion one 5205 and a shaking device; the shaking device is provided with a motor seven 5206, a pinion two 5207, a pinion three 5208, a mounting bracket one 5209, a crank wheel 5210, a connecting rod 5211, a shaking frame 5212, a transmission shaft 5213, a spring two 5214, a slider 5215, a spring three 5216, a support plate two 5217 and a rotating shaft 5218;

[0060] The mounting bracket 1 5209 is fixedly mounted on the frame, and the motor 7 5206 and the rotating shaft 5218 are fixedly mounted on the front section, and the support plates 2 5217 are symmetrically fixedly mounted on both sides; the crank wheels 5210 are fixedly connected at both ends of the rotating shaft 5218, and the pinion 3 5208 is fixedly connected in the middle; the pinion 2 5207 is fixedly connected to the output end of the motor 7 5206 and meshes with the pinion 3 5208; a plurality of slide grooves are provided on the support plate 2 5217, and a slider 5215 is slidably mounted inside the slide groove, and two slide grooves are provided in this embodiment; a spring 3 5216 is fixedly connected to the slider 5215 and the inside of the slide groove of the support plate 2 5313; a plurality of transmission shafts 5213 are fixedly mounted on the support rod 1 5212 at one end, and slidably mounted on the slider 5215 at the other end, and the transmission shaft 5213 is located between the rocking frame 5212 and the slider 5215 13 are all sleeved with spring two 5214, and in this embodiment, four transmission shafts 5213 are provided; in this embodiment, a mounting column is provided at the front section of the rocking frame 5212, and two connecting rods 5211 are symmetrically rotatably mounted on the crank wheel 5210 and the mounting column of the front section of the rocking frame 5212; the hollow barrel 5202 is fixedly mounted on the rocking frame 5212, and a drainage pipe is connected to the lower end, the storage barrel 5201 is rotatably mounted on the hollow barrel 5202, and abrasive grains are installed inside, and a fine net is provided at the lower end of the inside to ensure that the abrasive grains in the storage barrel 5201 will not be discharged, the circumferential rack 5204 is fixedly mounted on the outside of the storage barrel 5201, the motor six 5203 is fixedly mounted on the rocking frame 5212, and a rotating shaft is connected to the output end, and a pinion one 5205 is fixedly mounted on the other end of the rotating shaft, and the pinion one 5205 is meshed with the circumferential rack 5204.

[0061] Specifically, the rotating device 53 is provided with a support plate 5301, a motor 5302, a rotating slider 5303, a cam 5304, a sliding rod 5305, a rotating shaft 5306, a belt 5307, a cover 5308 and a two-way nozzle 5309; a through opening is provided on the side of the rotating slider 5303, and a cylinder is provided on the upper end surface, which is rotatably connected with the circular hole on the upper ring of the double-layer ring 5105 through the cylinder, and is rotatably installed in the slide groove of the double-layer ring; the support plate 5301 passes through the opening on the side of the rotating slider 5303 and is slidably installed on the rotating slider 5303, and the bottom end of one end of the support plate 5301 located on the outside of the double-layer ring 5105 is rotatably connected to the fixed ring 5101, and the motor 5 5302 is fixedly installed on the upper end, and the two-way nozzle 5310 is fixedly installed on the other end; a rotating Axis 5306, and symmetrical sliding grooves are opened on the upper and lower surfaces of the support plate, and the sliding grooves are located between the rotating shaft 5306 and the two-way nozzle 5310; a cam 5304 is fixedly installed at each end of the rotating shaft 5306, and the cams 5304 are opened with a free-form sliding groove, and the two cams 5304 are arranged horizontally at 180 degrees; one end of the upper sliding rod 5305 is slidably installed in the sliding groove at the upper end of the support plate 5301, and the other end is slidably connected in the sliding groove of the upper cam 5304; the two sliding rods 5305 are vertically slidably arranged on the upper and lower surfaces of the support plate 5301, and are both located between the rotating shaft 5306 and the two-way nozzle 5310; the other end of each sliding rod 5305 is slidably connected with the sliding groove on the corresponding cam 5304; a cover 5308 matching the two-way nozzle 5310 is fixedly installed on the side of each sliding rod 5305 close to the two-way nozzle 5310. One end of the belt 5307 is connected to the output end of the motor 5302, and the other end is connected to the upper end of the rotating shaft 5306.

[0062] Specifically, after the side polishing is completed, the turntable 102 drives the picking mechanism 2 to rotate, and then drives the wheel hub to rotate. When the wheel hub rotates to the top of the fine polishing mechanism, it stops rotating, and the cylinder 103 is started to make the wheel hub on the picking mechanism 2 enter the grinding device 52. A half cylinder of grinding particles is placed in the storage barrel 5201, but it is enough to cover the wheel hub placed in the storage barrel 5201. Then, the motor 7 5206 is started to drive the pinion 2 5207 to rotate, and then drive the pinion 3 5208 to rotate, and then drive the rotating shaft 5218 to rotate, and then drive the two ends of the rotating shaft The crank wheel 5210 rotates, thereby driving the rocking frame 5212 to slide up and down in the slider 5215, and at the same time driving the slider 5215 to slide in the slide groove of the support plate 2 5217, thereby driving the rocking frame 5212 to slide forward and backward, so that the abrasive particles in the storage barrel 5201 vibrate. At the same time, the motor 6 5203 is started, driving the pinion 1 5205 to rotate, thereby driving the storage barrel 5201 to rotate, so that the storage barrel 5201 vibrates and rotates at the same time, thereby achieving effective polishing of the entire wheel hub; in addition, a drainage pipe is connected to the lower end of the hollow barrel 5202;

[0063] After polishing is completed, the cylinder 103 pulls the wheel hub to move upward, so that the wheel hub leaves the abrasive grains in the storage barrel 5201 but is still located inside the storage barrel 5201. At this time, the upper end of the wheel hub is located at the lower end of the water spray device 51. At this time, the motor 4 5102 is started, driving the lead screw 5103 to rotate, and the lead screw 5103 drives the slider 1 5104 to move on the lead screw 5103. At this time, the slider 1 5104 drives the double-layer ring 5105 to rotate, and the double-layer ring 5105 drives the rotating slider 5303 to rotate, thereby driving the support The inner end of the support plate 5301 moves toward the center of the double-layer ring 5105, so that the two-way nozzle 5309 at the inner end of the support plate 5301 is located above the wheel hub. At the initial position, the cam 5304 located above the support plate 5301 presses against the cover 5308 to close the upper end of the two-way nozzle 5309. At this time, the two-way nozzle 5309 sprays water downward to clean the upper end surface of the wheel hub. Then, the motor 4 5102 rotates in the opposite direction to return the support plate 5301 to its original position, so that the wheel hub can be moved out of the double-layer ring 5105.

[0064] After the cylinder 103 drives the wheel hub to move out of the storage barrel 5201, the wheel hub is located above the water spraying device 51, and then the motor 4 5102 works again to drive the support plate 5301 to move, so that the two-way spray head 5309 at the inner end of the support plate 5301 moves to the lower end of the wheel hub again, and then the motor 5302 drives the rotating shaft 5306 connected to the cam 5304 to rotate, thereby driving the cam 5304 located below the support plate 5301 to push the cover 5308 to move to the bottom of the two-way spray head 5309, closing the lower end of the two-way spray head. At this time, the two-way spray head 5309 sprays water upward to clean the lower end of the wheel hub, and then the rotary mechanism moves the wheel hub to the unloading conveyor belt at the outlet position of the wheel hub;

[0065] Specifically, Figure 18-19 The retracting and releasing mechanism 6 is provided with a motor eight 601, a rotating shaft three 602, a bracket two 603, a belt group 604, a pinion four 605, a bracket three 606 and a rotating shaft three 607; two bracket three 606 are fixedly installed on the frame or the unloading conveyor belt. In this embodiment, the bracket three 606 is fixedly installed on the unloading conveyor belt, the motor eight 601 is fixedly installed on one side of the bracket three 606, one end of the rotating shaft three 602 is fixedly connected to the output end of the motor eight 601, and the other end is rotatably connected to another bracket three 606; the bracket two 603 is fixedly installed on the bracket three 606; one end of the rotating shaft three 607 is rotatably connected to the bracket two 603, and the other end is fixedly connected with the pinion four 605, and is sleeve-connected with the rotating shaft three 602 through the belt group 604; the pinion four 605 is intermittently meshed with the rack 203.

[0066] Specifically, when the polished wheel hub needs to be lowered and removed, the turntable 102 drives the wheel hub to rotate, and when the rack 203 and the pinion four 605 are meshed, the rotation stops, at this time, the motor eight 601 is started, driving the pinion four 605 to rotate clockwise, and the pinion four 605 drives the rack 203 to move upward, and the rack 203 moves upward to pull the rope 206 to move, and the rope 206 pulls the two clips 201 to slide in the connecting block 205, and when the distance between the two clips 201 is smaller than the center through hole of the wheel hub, the picking mechanism 2 puts the wheel hub down, and the unloading conveyor belt moves the wheel hub out of the equipment;

[0067] Specifically, the clamping device 40 is provided with a spring four 406 and a support rod 405; one end of the multiple support rods 405 is slidably connected to the vertical rod of the mounting bracket 404, and the other end is fixedly connected to the punching module 410; the support rods 405 located between the vertical rod of the mounting bracket 404 and the punching module 410 are all provided with a spring four 406.

[0068] Specifically, it also includes a protection frame 7, on which a door frame for the conveying hubs of the loading conveyor belt and the unloading conveyor belt is opened, and the protection frame can improve the safety of the outside operators.

[0069] Specifically, a human-machine interactive display screen is installed inside the protection frame 7 for observing the polishing condition of the wheel hub in the equipment.

[0070] Specifically, motor 101, cylinder 103, motor two 302, electric bidirectional screw device 304, motor one 308, vacuum cleaner 408, motor four 5102, motor five 5302, motor six 5203, motor seven 5206, motor eight 601, loading conveyor belt and unloading conveyor belt are all electrically connected to the control device.

[0071] Working principle:

[0072] In the first step, the staff puts the wheel hub on the feeding conveyor belt at the entrance, and the cylinder 103 is started to pick up the wheel hub;

[0073] In the second step, the motor 101 is started to send the wheel hub to the position of the end surface polishing mechanism 3, the motor 101 stops rotating, and then the motor 2 302 is started, and then the electric bidirectional screw device 304 is started, and the position of the polishing head 310 is adjusted, and then the motor 308 is started to complete the end surface polishing;

[0074] In the third step, the motor 101 is started to send the wheel hub to the side polishing mechanism 4, the motor 101 stops rotating, the motor 3 402 is started, and then the vacuum cleaner 408 is started to complete the side polishing;

[0075] Step 4: Motor 101 starts, sends the wheel hub to fine polishing mechanism 4, motor 101 stops rotating, cylinder 103 starts, sends the wheel hub to storage barrel 5201 and then stops, then motor 6 and motor 7 start, and fine polishing is completed;

[0076] Step 5: After fine polishing is completed, the cylinder 103 is started to separate the wheel hub from the abrasive particles in the storage barrel 5201, and the cylinder 103 stops moving. Then the motor 4 5102 is started, the water tank 5106 is started to drain water, and then the motor 4 5102 rotates in the reverse direction, and the rotating device 53 is reset.

[0077] Step 6: After the rotating device 53 is reset, the cylinder 103 starts to bring the wheel hub out of the storage barrel 5102, the cylinder 103 stops moving, and the motor 5 5302 starts;

[0078] In the seventh step, after the wheel hub is rinsed clean, the motor 101 is started to send the wheel hub to the retracting mechanism 6, the motor 101 stops rotating, and the motor 8 601 is started to place the wheel hub on the unloading conveyor belt at the exit.

[0079] The above description is only a preferred specific implementation manner of this embodiment, but the protection scope of this embodiment is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of this embodiment within the technical scope disclosed in this embodiment, and they should be covered by the protection scope of this embodiment.

Claims

1. A wheel hub polishing device, characterized in that: include: A rotary mechanism (1), a picking mechanism (2), an end face polishing mechanism (3), a side face polishing mechanism (4), a fine polishing mechanism (5), a retracting mechanism (6), a loading conveyor belt, a unloading conveyor belt and a control device; the rotary mechanism (1) is fixedly mounted on a frame, a turntable (102) is provided on the rotary mechanism (1), and a plurality of cylinders (103) are evenly and fixedly connected to the turntable (102); picking mechanisms (2) corresponding to the number of cylinders (103) are rotatably and slidably mounted on the turntable (102), and the picking mechanisms (2) are rotatably connected to the output shafts of the corresponding cylinders (103); the rotary mechanism (1) rotates to drive the plurality of picking mechanisms (2) to intermittently cooperate with the loading conveyor belt, the end face polishing mechanism (3), the side face polishing mechanism (4), the fine polishing mechanism (5), the retracting mechanism (6) and the unloading conveyor belt in sequence; the control device controls the operation of the entire wheel hub polishing device; The taking mechanism (2) is provided with a clip (201), a gear (202), a rack (203), a connecting rod (204), a connecting block (205), a rope (206), a positioning rod (207), a rotating wheel 1 (208), a compression spring (209) and a rotating wheel 2 (210); the connecting rod (204) is rotatably and slidably mounted on the turntable (102), and is rotatably connected to the output end of the cylinder (103), and a sliding groove is provided at the lower end; the gear (202) is fixedly mounted on the connecting rod (204); the rack (203) is slidably mounted in the sliding groove of the connecting rod (204); the connecting block (205) is fixedly mounted on the bottom end of the connecting rod (204), and an opening is provided at the upper end, and a groove connected to the opening is provided at the lower end; the two connecting rods (204) are provided with a plurality of grooves. The upper end of the clip (201) is symmetrically slidably mounted in the groove of the connecting block (205), and a compression spring (209) is installed between the two; the rotating wheel 1 (208) is rotatably mounted on any one of the clips (201); the rotating wheel 2 (210) is rotatably mounted inside the connecting block (205) and corresponds to the rotating wheel 1 (208) in a vertical plane; one end of the rope (206) is fixedly connected to the rack (203), and the other end passes through the opening of the connecting block (205) and successively passes around the rotating wheel 2 (210) and the rotating wheel 1 (208) and is fixedly connected to another clip (201); the positioning rod (207) is arranged in parallel with the clip (201) and is fixedly connected to one side of the connecting block (205); The end surface polishing mechanism (3) is provided with a large gear (301), a second motor (302), a bracket (303), an electric bidirectional screw device (304), a stop block (306), a cam (307), a first motor (308), a mounting base (309), a polishing head (310), a collecting box (311) and a vertical plate (312); the lower end of the bracket (303) is fixedly mounted on the mounting base (309), the upper end of the bracket (303) is mounted with the second motor (302), the output end of the second motor (302) is connected to the large gear (301), and the large gear (301) is intermittently meshed with the gear (202); the mounting base (309) is fixedly mounted on the frame; the mounting base (309) ) is provided at the rear side of the rotating disk (102), and a motor 1 (308) is fixedly installed on the upper end of the mounting column, and the output end of the motor 1 (308) is connected to the cam 1 (307), and the upper and lower ends of the cam 1 (307) are symmetrically provided with sliding grooves that are consistent with the appearance of the cam 1 (307); the mounting base plate (309) is located on one side of the rotating disk (102) and is slidably connected to the collection box (311), and a vertical plate (312) is fixedly installed on the collection box (311) at a position corresponding to the cam 1 (307), and a limit block (306) that is symmetrical in terms of the upper and lower sides is fixedly installed on the rear side surface of the vertical plate (312), and a limit column is provided on the limit block (306), and the limit column is slidably installed in the sliding groove on the cam 1 (307); An electric bidirectional lead screw device (304) is fixedly mounted on the front side of the vertical plate (312); the electric bidirectional lead screw device (304) is located inside the collecting box (311), and two polishing heads (310) are slidably mounted on the lead screw in a synchronous upward and downward movement in opposite directions.

2. A hub polishing device according to claim 1, characterized in that: The rotary mechanism (1) is further provided with a motor (101) and a rotating shaft (104); a vertical rotating shaft (104) is provided in the middle of the rotating disk (102); the lower end of the rotating shaft (104) is rotatably mounted on a motor mounting frame and connected to an output end of the motor (101) in the motor mounting frame; and the motor mounting frame is fixedly mounted on a frame.

3. A hub polishing device according to claim 1, characterized in that: The side polishing mechanism (4) is provided with a large gear 1 (401), a motor 3 (402), a bracket 1 (403), a mounting bracket (404), a clamping device (40), a semicircular cover (407), a vacuum cleaner (408), a mounting base plate 1 (409) and a grinding block (410); the lower end of the bracket 1 (403) is fixedly mounted on the mounting base plate 1 (409), and the upper end is mounted with the motor 3 (402); the output end of the motor 3 (402) is connected to the large gear 1 (401), and the large gear 1 (401) is intermittently meshed with the gear (202); the mounting base plate 1 (409) is fixedly mounted on the frame; the mounting bracket (404) is an inverted L-shaped bracket, and one end of the bracket is The device is fixedly connected to the mounting base plate (409), and the other end is fixedly connected to a vertically placed semicircular cover (407), and the opening of the semicircular cover (407) faces the turntable (102); a waste collection platform is provided at the bottom of the semicircular cover (407), a leak hole is provided at the bottom of the platform, and an opening a is provided in the middle of the semicircular cover; one end of the clamping device (40) is fixed to the frame or the mounting bracket (404), and the other end passes through the opening a of the semicircular cover (407) and is fixedly connected to the grinding block (410), and the grinding block (410) is used for polishing the side of the wheel hub; the vacuum cleaner (408) is fixedly mounted on the frame, and the suction head is sealedly connected to the leak hole of the waste platform at the bottom of the semicircular cover (407); The clamping device (40) is provided with a spring four (406) and a support rod (405); one end of the plurality of support rods (405) is slidably connected to the vertical rod of the mounting bracket (404), and the other end is fixedly connected to the grinding block (410); the support rods (405) located between the vertical rod of the mounting bracket (404) and the grinding block (410) are all sleeved with a spring four (406).

4. A hub polishing device according to claim 1, characterized in that: The fine polishing mechanism (5) is provided with a water spray device (51) and a grinding device (52); the water spray device (51) is provided with a fixed ring (5101), a fourth motor (5102), a lead screw (5103), a first slider (5104), a double-layer ring (5105), a water tank (5106) and a rotating device (53); the water tank (5106) is fixedly mounted on the frame; one end of the fixed ring (5101) is fixedly mounted on the upper end of the water tank (5106); the double-layer ring (5105) is rotatably mounted on the fixed ring (5101), at least one slide groove is provided between the upper and lower rings, and a groove is provided at the lower end of the outer side. There is a connecting ear; the motor four (5102) is rotatably mounted on the fixed ring (5101) and is located outside the double-layer ring (5105), and the lead screw (5103) is connected to the output end of the motor four (5102); the slider one (5104) is slidably mounted on the lead screw (5103), and a rotating shaft one is provided at the bottom end, and is rotatably mounted on the connecting ear of the double-layer ring (5105) through the rotating shaft one; one end of a plurality of rotating devices (53) is rotatably mounted on the fixed ring (5101), and the other end of each rotating device (53) is slidably and rotatably connected to a corresponding section of a sliding groove in the double-layer ring (5105); The sanding device (52) is provided with a storage barrel (5201), a hollow barrel (5202), a sixth motor (5203), a circumferential rack (5204), a first pinion (5205) and a shaking device; the shaking device is fixedly mounted on a frame, the hollow barrel (5202) is fixedly mounted on the shaking device, and a drainage pipe is connected to the lower end; the storage barrel (5201) is rotatably mounted on the hollow barrel (5202), and a fine net is provided at the lower end of the storage barrel (5201); the circumferential rack (5204) is fixedly mounted on the outside of the storage barrel (5201), the sixth motor (5203) is fixedly mounted on the shaking device, and a first pinion (5205) is fixedly mounted on the output end, and the first pinion (5205) is meshed with the circumferential rack (5204).

5. A hub polishing device according to claim 4, characterized in that: The rotating device (53) is provided with a support plate (5301), a motor five (5302), a rotating slider (5303), a cam two (5304), a sliding rod (5305), a rotating shaft (5306), a belt (5307), a sealing cover (5308) and a bidirectional nozzle (5309); the motor five (5302) and the bidirectional nozzle (5309) which are symmetrical up and down are fixedly provided at both ends of the support plate (5301), and one end of the motor five (5302) is rotatably connected to the fixing ring (5101); the rotating slider (5303) is slidably arranged on the support plate (5301) and is rotatably connected to the double-layer ring (5105); the rotating shaft (5306) penetrates and is rotatably installed on the support plate (5301), The rotating shaft (5306) is sleeve-connected with the motor (5302) via a belt (5307); a cam (5304) is fixedly mounted on each end of the rotating shaft (5306); the two cams (5304) are arranged horizontally at an angle of 180 degrees, and the surfaces of the two cams (5304) are provided with a slide groove that is consistent with the appearance of the cams (5304); the two slide bars (5305) are vertically slidably arranged on the upper and lower surfaces of the support plate (5301), and are both located between the rotating shaft (5306) and the two-way nozzle (5309); the other end of each of the slide bars (5305) is slidably connected to the slide groove on the corresponding cam (5304); and a cover (5308) that matches the two-way nozzle (5309) is fixedly mounted on one side of each of the slide bars (5305) close to the two-way nozzle (5309).

6. A hub polishing device according to claim 1, characterized in that: The retractable mechanism (6) is provided with a motor eight (601), a rotating shaft three (602), a bracket two (603), a belt group (604), a pinion four (605), a bracket three (606) and a rotating shaft four (607); two brackets three (606) are fixedly mounted on a material unloading conveyor belt or a frame, the motor eight (601) is fixedly mounted on one side of one of the brackets three (606), and one end of the rotating shaft three (602) is fixedly connected to the motor eight (60 1), and the other end is rotatably connected to another bracket three (606); the bracket two (603) is fixedly mounted on the bracket three (606); one end of the rotating shaft four (607) is rotatably connected to the bracket two (603), and the other end is fixedly connected to the pinion four (605), and the rotating shaft four (607) is sleeve-connected to the rotating shaft three (602) through a belt group (604); the pinion four (605) is intermittently meshed with the rack (203).

7. A hub polishing device according to claim 4, characterized in that: The shaking device is provided with a motor seven (5206), a mounting bracket one (5209), a crank wheel (5210), a connecting rod (5211), a shaking frame (5212), a transmission shaft (5213), a spring two (5214), a slider (5215), a spring three (5216), a support plate two (5217) and a rotating shaft two (5218); the mounting bracket one (5209) is fixedly mounted on the frame, the rotating shaft two (5218) is rotatably mounted on the mounting bracket one (5209), and is driven by the motor seven (5206) fixedly mounted on the mounting bracket one (5209); the crank wheels (5210) are fixedly connected at both ends of the rotating shaft two (5218); the two support plates two (5 217) are symmetrically fixedly mounted on the mounting bracket one (5209), and the support plate two (5217) is provided with a plurality of slide grooves, inside which a slider (5215) is slidably mounted; the spring three (5216) is fixedly connected to the inside of the slide grooves of the slider (5215) and the support plate two (5217); one end of the plurality of transmission shafts (5213) is fixedly mounted on the rocking frame (5212), and the other end is slidably mounted on the slider (5215), and the transmission shafts (5213) located between the rocking frame (5212) and the slider (5215) are all sleeved with springs two (5214); the two connecting rods (5211) are symmetrically rotatably mounted between the crank wheel (5210) and the rocking frame (5212).

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