CN118664416A - Automatic aluminum alloy hub polishing robot and polishing method - Google Patents

Abstract

The present invention relates to the technical field of wheel hub polishing, and specifically discloses an automatic grinding robot and a grinding method for an aluminum alloy wheel hub, comprising a base, a supporting frame fixedly installed on the top of the base, a mounting frame fixedly installed on the upper end of the supporting frame, a driving mechanism movably installed inside the mounting frame, a clamping mechanism fixedly installed on the inner side of the driving mechanism, a supporting frame fixedly installed in the middle of the top rear side of the base, and a welding mechanism fixedly installed on the top of the supporting frame; the clamping mechanism comprises a movable frame, and the movable frame is fixedly installed on the inner side of the driving mechanism. The present invention cooperates with the driving mechanism and the clamping mechanism, utilizes a third motor to drive the transmission pulley to rotate, and rotates two sets of transmission pulleys and a screw rod through a transmission belt, thereby driving the second slider and the clamping mechanism to move, so as to stably clamp wheel hubs of different sizes, and the automatic drive design improves the clamping adaptability and the use performance.

Description

Aluminum alloy wheel hub automatic polishing robot and polishing method

Technical Field

The invention relates to the technical field of wheel hub polishing, in particular to an automatic polishing robot and a polishing method for an aluminum alloy wheel hub.

Background Art

Aluminum alloy wheel grinding is a crucial process operation. It mainly uses special tools and materials to carry out detailed treatment on the surface of aluminum alloy wheels. The purpose of this operation is to eliminate various defects on the wheel surface, such as scratches, flaws, rough parts, etc., so as to make the wheel surface smooth and flat, thereby greatly improving the appearance. At the same time, the grinding process also builds a good foundation for subsequent processing steps such as polishing and coating, which is beneficial to shaping the finished wheel with excellent texture and gloss.

The Chinese patent with the publication number "CN112157575B" discloses a polishing device for automobile aluminum alloy wheel hubs, which includes a vibration module, an auxiliary module, a clamping module and a wheel hub. The invention can make the magnetic powder inside the vibration barrel vibrate by setting the vibration module, and then the magnetic powder will repeatedly rub on the outer surface of the wheel hub, so as to achieve the effect of polishing the wheel hub. In addition, by setting the auxiliary module and the clamping module, it is convenient for the user to place the wheel hub on the upper surface of the lifting plate more ideally, so that the device is more convenient when clamping the wheel hub;

However, although the above-mentioned device has good polishing function during the polishing process, in its specific application, the aluminum alloy wheel hub needs to be polished on both sides after processing. However, the current automatic polishing equipment for aluminum alloy wheel hubs can often only process one side, and manual cooperation is required to turn the aluminum alloy wheel hub over, and then polish the other side. The wheel hub needs to be re-taken and placed for clamping and positioning after turning over. The whole operation will obviously take a lot of time. It is obvious that the overall polishing efficiency of the existing polishing equipment is low, so it needs to be improved and optimized.

Summary of the invention

The object of the present invention is to provide an automatic grinding robot and a grinding method for an aluminum alloy wheel hub, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above-mentioned purpose, the present invention provides an automatic grinding robot and grinding method for aluminum alloy wheels, comprising a base, a support frame is fixedly installed on the top of the base, a mounting frame is fixedly installed on the upper end of the support frame, a driving mechanism is movably installed inside the mounting frame, a clamping mechanism is fixedly installed on the inner side of the driving mechanism, a support frame is fixedly installed in the middle of the top rear side of the base, and a welding mechanism is fixedly installed on the top of the support frame;

The clamping mechanism includes a movable frame, which is fixedly installed on the inner side of the driving mechanism, a first motor is fixedly installed on the middle part of the outer side of the movable frame, the output end of the first motor passes through the movable frame and is fixedly installed with a fixed frame, a clamping frame is fixedly installed on the inner side of the fixed frame, driving rollers are rotatably connected with the inner side of the clamping frame at equal intervals, a second motor is fixedly installed on one side of the top of the fixed frame, the output end of the second motor passes through the fixed frame and is fixedly connected with the top of a driving roller, and a limiting component is fixedly installed on the middle part of the outer side of the fixed frame.

Furthermore, the overall top view shape of the fixing frame is V-shaped, and the clamping frame is concave-shaped.

Furthermore, the limit assembly includes an outer vertical rail, which is fixedly installed on the middle part of the outer side of the fixed frame, and a sixth motor is fixedly installed on the top of the outer vertical rail. The output end of the sixth motor passes through the outer vertical rail and a first screw rod is fixedly installed, and the threads at both ends of the first screw rod have opposite rotation directions. The first screw rod is rotatably connected to the inner side of the vertical rail, and both ends of the first screw rod are threadedly connected to a first slider, which is slidably connected to the two ends inside the external force rail, and a limit frame is fixedly installed on the inner side of the first slider.

Furthermore, a clamping block is fixedly mounted on the inner end of the limiting frame, and both inner ends of the clamping block are rotatably connected with balls.

Furthermore, the driving mechanism includes a driving component and a slide groove, the driving component is fixedly installed on one side of the mounting frame, the slide groove is opened on both sides of the mounting frame, the interior of the slide groove is rotatably connected to a second screw rod, the threads at both ends of the second screw rod have opposite rotation directions, both ends of the second screw rod are threadedly connected to a second slider, the second slider is slidably connected to the inner side of the slide groove, and the movable frame is fixedly installed on the inner side of the second slider.

Furthermore, the driving assembly includes a transmission pulley and a side frame, the side frame is fixedly mounted on the front end of one side of the mounting frame, the transmission pulley is rotatably connected to the front and rear ends of one side of the mounting frame close to the side frame, the transmission pulleys are connected via a transmission belt, the inner side of the transmission pulley is fixedly connected to the outer end of the second screw rod, a third motor is fixedly mounted on the outer side of the side frame, and the output end of the third motor passes through the side frame and is fixedly connected to a transmission pulley.

Furthermore, the welding mechanism includes a top rail frame, which is fixedly installed on the upper end of the support frame, and a third slider is slidably connected to the inner side of the top rail frame, a power assembly is fixedly installed on one side of the third slider, a telescopic cylinder is fixedly installed on the top of the third slider, and a bottom output end of the telescopic cylinder passes through the third slider and is fixedly installed with a mounting seat, a fourth motor is fixedly installed on the inner side of the mounting seat, and a polishing grinding wheel is installed on the output end of the fourth motor through bolts.

Furthermore, the power assembly includes a mounting frame and a rack, the mounting frame is fixedly installed on one side of the third slider, a fifth motor is fixedly installed on the outer side of the mounting frame, an output end of the fifth motor passes through the mounting frame and a gear is fixedly installed, the rack is fixedly installed on the lower end of one side of the top rail frame, and the rack and the gear are meshingly connected.

In a second aspect, a grinding method of an aluminum alloy wheel hub automatic grinding robot comprises the following steps:

Step 1: Start the third motor, the third motor drives the transmission pulley to rotate, and the two sets of transmission pulleys are driven by the transmission belt to rotate synchronously, thereby driving the two sets of lead screws to rotate, so that the second slider slides in the slide groove. During this period, the wheel hub is placed on the inner side of the clamping frame, and then the clamping mechanism is driven to move relative to each other to clamp and position wheel hubs of different sizes;

Step 2: During the movement of the second slider, the movable frame and the clamping frame are driven to move relative to each other, and the V-shaped clamping frame is used to stably clamp the wheel hubs of different diameters, and the second motor is started to allow the driving roller to drive the wheel hub to rotate inside the clamping frame;

Step 3: Start the sixth motor to rotate the first screw rod, drive the first slider to slide back and forth in the outer vertical rail, drive the clamping block to further clamp and position the wheel hub to prevent the wheel hub from falling off, and at the same time, the ball assists the wheel hub to rotate stably;

Step 4: After polishing one side of the wheel hub, start the first motor to drive the fixed frame and the clamping frame inside the movable frame to rotate, so as to realize the turning of the wheel hub;

Step 5: Start the telescopic cylinder to make the mounting seat drive the fourth motor to move downward, so that the polishing wheel fits the outer surface of the wheel hub. The fourth motor drives the polishing wheel to rotate, and cooperates with the driving roller to achieve efficient and stable polishing of the wheel hub.

Step 6: During the polishing process, start the power assembly, drive the gear to rotate through the fifth motor, mesh with the rack to make the third slider slide on the inside of the top rail frame, drive the telescopic cylinder and the fourth motor and polishing wheel at the bottom to move linearly, adapt to the polishing process of wheels of different sizes and various positions, and use the flipping rotation of the wheel to improve adaptability and efficiency.

Compared with the prior art, the present invention has the following beneficial effects:

Firstly, in the present invention, the driving mechanism cooperates with the clamping mechanism, and utilizes the third motor to drive the transmission pulley to rotate, and the two sets of transmission pulleys and the screw are rotated through the transmission belt, thereby driving the second slider and the clamping mechanism to move, so as to stably clamp wheels of different sizes, and the automatic drive design improves the clamping adaptability and performance.

Secondly, in the present invention, through the clamping mechanism, the driving mechanism drives its movement, the second slider moves to displace the movable frame and the clamping frame, the V-shaped clamping frame can clamp wheel hubs of different diameters, the second motor is started to make the driving roller drive the wheel hub to rotate, the welding mechanism can be operated for polishing, the sixth motor further positions the clamping block, and the first motor can drive the clamping frame to flip the wheel hub, thereby realizing free flipping processing and improving processing convenience and efficiency.

Thirdly, in the present invention, in the welding mechanism, the telescopic cylinder is started to make the polishing wheel fit the wheel hub, the fourth motor drives it to rotate and cooperates with the driving roller to achieve efficient and stable polishing, and the fifth motor in the power assembly drives the gear and rack to make the third slider slide, driving the polishing wheel to move linearly, which is suitable for polishing wheel hubs of different sizes. The adjustable design and the flipping rotation of the wheel hub improve the polishing adaptation performance and efficiency as well as the convenience of production and processing.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a schematic diagram of the rear view structure of the present invention;

FIG3 is a schematic diagram of a top view of the structure of the present invention;

FIG4 is a schematic diagram of the structure of the driving mechanism and the clamping mechanism in the present invention;

FIG5 is a schematic diagram of the structure of one side of the clamping mechanism of the present invention;

FIG6 is a schematic diagram of the structure of the other side of the clamping mechanism in the present invention;

FIG7 is a schematic diagram of the polishing mechanism structure of the present invention;

FIG8 is a schematic structural diagram of the telescopic cylinder, the mounting base and the fourth motor in the present invention.

In the figure: 1, base; 2, support frame; 3, drive mechanism; 31, drive assembly; 311, drive pulley; 312, side frame; 313, third motor; 32, slide groove; 33, second screw rod; 34, second slider; 4, support frame; 5, mounting frame; 6, clamping mechanism; 61, movable frame; 62, first motor; 63, fixed frame; 64, clamping frame; 65, drive roller; 66, second motor; 67, limit assembly; 671. External rail; 672. Sixth motor; 673. First screw rod; 674. First slider; 675. Limiting frame; 676. Clamping block; 677. Ball; 7. Welding mechanism; 71. Top rail frame; 72. Third slider; 73. Power assembly; 731. Mounting frame; 732. Rack; 733. Fifth motor; 734. Gear; 74. Telescopic cylinder; 75. Mounting seat; 76. Fourth motor; 77. Polishing wheel.

DETAILED DESCRIPTION

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

Please refer to Figures 1 to 8. In the embodiment of the present invention, an automatic grinding robot and grinding method for an aluminum alloy wheel hub include a base 1, a support frame 2 is fixedly installed on the top of the base 1, a mounting frame 5 is fixedly installed on the upper end of the support frame 2, a driving mechanism 3 is movably installed inside the mounting frame 5, a clamping mechanism 6 is fixedly installed on the inner side of the driving mechanism 3, a support frame 4 is fixedly installed in the middle of the top rear side of the base 1, and a welding mechanism 7 is fixedly installed on the top of the support frame 4;

The clamping mechanism 6 includes a movable frame 61, which is fixedly installed on the inner side of the driving mechanism 3. A first motor 62 is fixedly installed in the middle of the outer side of the movable frame 61. The output end of the first motor 62 passes through the movable frame 61 and is fixedly installed with a fixed frame 63. A clamping frame 64 is fixedly installed on the inner side of the fixed frame 63. A driving roller 65 is rotatably connected to the inner side of the clamping frame 64 at equal intervals. A second motor 66 is fixedly installed on one side of the top of the fixed frame 63. The output end of the second motor 66 passes through the fixed frame 63 and is fixedly connected to the top of a driving roller 65. A limiting component 67 is fixedly installed in the middle of the outer side of the fixed frame 63. The support frame 2, the mounting frame 5, the driving mechanism 3 and the clamping mechanism 6 on the base 1 cooperate with each other to stably clamp objects of different sizes. The aluminum alloy wheel hub is clamped and positioned, and the automatic operation of the driving mechanism 3 improves the overall convenience and efficiency. Secondly, the movable frame 61 in the clamping mechanism 6 can realize the rotation of the fixed frame 63 and the clamping frame 64 through the first motor 62, which is convenient for turning over the wheel hub. The driving roller 65 and the second motor 66 can make the wheel hub rotate in the clamped state, and the welding mechanism 7 can efficiently complete the grinding and polishing. The design of the clamping frame 64 can adapt to wheels of different diameters and has high flexibility. Furthermore, the limiting assembly 67 on the fixed frame 63 further enhances the stability of the wheel hub clamping and ensures the smooth progress of the processing process. Finally, the welding mechanism 7 on the support frame 4 works in coordination with other parts to achieve comprehensive and high-quality grinding of the wheel hub.

Please refer to Figures 5 and 6. The overall top view shape of the fixed frame 63 is V-shaped, and the clamping frame 64 is concave. The movable frame 61 in the clamping mechanism 6 can drive the fixed frame 63 and the V-shaped clamping frame 64 to rotate under the action of the first motor 62, which is convenient for turning over the wheel hub. At the same time, the concave clamping frame 64 can firmly clamp the wheel hubs of different diameters. Combined with the driving roller 65 and the second motor 66, the wheel hub can rotate well in the clamped state, which is conducive to the efficient grinding and polishing work.

Please refer to Figures 5 and 6. The limit assembly 67 includes an outer vertical rail 671, which is fixedly installed on the middle part of the outer side of the fixing frame 63. A sixth motor 672 is fixedly installed on the top of the outer vertical rail 671. The output end of the sixth motor 672 passes through the outer vertical rail 671 and is fixedly installed with a first screw rod 673. The two ends of the first screw rod 673 have opposite thread rotation directions. The first screw rod 673 is rotatably connected to the inner side of the vertical rail. Both ends of the first screw rod 673 are threadedly connected to the first slider 674. The first slider 674 is slidably connected to the two ends of the outer force rail. The first slider A limit frame 675 is fixedly installed on the inner side of 674, and the outer vertical rail 671 is fixed on the middle part of the outer side of the fixed frame 63. The first screw rod 673 is driven to rotate by the sixth motor 672 on the top. Since the threads at both ends of the first screw rod 673 have opposite rotation directions, the first sliders 674 at both ends can be driven to move toward or away from each other, so that the inner limit frame 675 can flexibly adjust its position according to the size of the wheel hub, realize accurate and stable limiting, ensure the stability of the wheel hub during the grinding process, avoid shaking or displacement, and ensure high quality and high efficiency of the grinding operation.

Please refer to Figures 5 and 6. A clamping block 676 is fixedly installed on the inner end of the limit frame 675, and both inner ends of the clamping block 676 are rotatably connected with ball bearings 677. The design of ball bearings 677 on the inner side of the clamping plate can reduce the inner friction of the limit frame 675, thereby improving the stability of the overall clamping and positioning of the wheel hub of the device, while facilitating the adjustment of the rotational displacement of the wheel hub, thereby improving the overall adaptability of the device.

Please refer to Figure 4. The driving mechanism 3 includes a driving component 31 and a slide groove 32. The driving component 31 is fixedly installed on one side of the mounting frame 5. The slide grooves 32 are opened on both sides of the mounting frame 5. The inside of the slide groove 32 is rotatably connected to the second screw rod 33. The threads at both ends of the second screw rod 33 rotate in opposite directions. Both ends of the second screw rod 33 are threadedly connected to the second slider 34. The second slider 34 is slidably connected to the inner side of the slide groove 32. The movable frame 61 is fixedly installed on the inner side of the second slider 34. The driving component 31 provides a power source for the entire mechanism, and the slide grooves 32 on both sides of the mounting frame 5 and the second screw rod 33 and the second slider 34 therein constitute a flexibly adjustable moving system. The threads at both ends of the second screw rod 33 rotate in opposite directions, so that when it rotates, it can drive the second sliders 34 at both ends to move toward or away from each other synchronously, thereby realizing the position adjustment of the movable frame 61 installed on the inner side of the second slider 34 and the entire clamping mechanism 6 to meet the clamping requirements of wheel hubs of different sizes. This driving mechanism 3 with precise position adjustment enhances the versatility and adaptability of the robot, and can ensure stable clamping and efficient driving of wheel hubs of various specifications.

Please refer to Figure 4, the driving assembly 31 includes a transmission pulley 311 and a side frame 312, the side frame 312 is fixedly installed on the front end of one side of the mounting frame 5, the transmission pulley 311 is rotatably connected to the front and rear ends of one side of the mounting frame 5 close to the side frame 312, the transmission pulleys 311 are connected through a transmission belt transmission, the inner side of the transmission pulley 311 is fixedly connected to the outer end of the second screw rod 33, and the outer side of the side frame 312 is fixedly installed with a third motor 313, the output end of the third motor 313 passes through the side frame 312 and is fixedly connected to a transmission pulley 311, the third motor 313 serves as a power source, drives one of the transmission pulleys 311 to rotate, and then drives the other transmission pulley 311 to rotate synchronously through the transmission belt, thereby realizing the rotation of the second screw rod 33, such a design realizes the effective transmission and precise control of power, can accurately drive the second slider 34 to move in the slide groove 32 to adjust the position of the clamping mechanism 6, such a driving method has high stability and reliability, and can ensure that it still maintains good performance during long-term use.

Please refer to Figures 7-8. The welding mechanism 7 includes a top rail frame 71, which is fixedly installed on the upper end of the support frame 4. The inner side of the top rail frame 71 is slidably connected to a third slider 72. A power assembly 73 is fixedly installed on one side of the third slider 72. A telescopic cylinder 74 is fixedly installed on the top of the third slider 72. The bottom output end of the telescopic cylinder 74 passes through the third slider 72 and is fixedly installed with a mounting seat 75. A fourth motor 76 is fixedly installed on the inner side of the mounting seat 75. A polishing wheel 77 is installed on the output end of the fourth motor 76 through bolts. The top rail frame 71 provides a stable support and moving track for the entire welding mechanism 7, so that the third slider 72 can slide smoothly inside it, thereby achieving The welding position can be adjusted over a wide range. The power assembly 73 provides power for the movement of the third slider 72 to ensure that it can accurately reach the required position. The setting of the telescopic cylinder 74 can flexibly control the up and down movement of the mounting seat 75, and then adjust the height of the polishing wheel 77 according to actual grinding needs. The fourth motor 76 drives the polishing wheel 77 to perform rotational grinding. The bolt installation facilitates the replacement of polishing wheels 77 of different specifications to adapt to different grinding tasks. The design of this welding mechanism 7 has strong flexibility and adaptability, and can meet the grinding requirements of aluminum alloy wheels of various complex shapes and sizes. It can achieve high-precision grinding operations and ensure the consistency and reliability of grinding quality.

Please refer to Figures 7-8. The power assembly 73 includes a mounting frame 731 and a rack 732. The mounting frame 731 is fixedly installed on one side of the third slider 72. A fifth motor 733 is fixedly installed on the outer side of the mounting frame 731. The output end of the fifth motor 733 passes through the mounting frame 731 and is fixedly installed with a gear 734. The rack 732 is fixedly installed on the lower end of one side of the top rail frame 71. The rack 732 and the gear 734 are meshed and connected. When the fifth motor 733 is started, the gear 734 is driven to rotate. Since the gear 734 is meshed with the rack 732, the third slider 72 is pushed to move accurately along the top rail frame 71. This power transmission method is direct and efficient, and can realize rapid and accurate adjustment of the position of the welding mechanism 7. Through the transmission structure of the gear 734 and the rack 732, it has high positioning accuracy and repeated positioning accuracy, which can ensure that each adjustment can reach the expected position, providing reliable guarantee for high-quality grinding work.

Please refer to Figures 1 to 8, a grinding method of an aluminum alloy wheel hub automatic grinding robot includes the following steps:

Step 1: Start the third motor 313, the third motor 313 drives the transmission pulley 311 to rotate, and the two sets of transmission pulleys 311 are driven to rotate synchronously through the transmission belt, thereby driving the two sets of screw rods to rotate, so that the second slider 34 slides in the slide groove 32, during which the wheel hub is placed on the inner side of the clamping frame 64, and then the clamping mechanism 6 is driven to move relative to each other to clamp and position wheel hubs of different sizes;

Step 2: During the movement of the second slider 34, the movable frame 61 and the clamping frame 64 are driven to move relative to each other, and the V-shaped clamping frame 64 is used to stably clamp the wheels of different diameters, and the second motor 66 is started to allow the driving roller 65 to drive the wheel to rotate inside the clamping frame 64;

Step 3: Start the sixth motor 672 to rotate the first screw rod 673, drive the first slider 674 to slide back and forth in the outer rail 671, drive the clamping block 676 to further clamp and position the wheel hub to prevent the wheel hub from falling off, and at the same time, the ball bearing 677 assists the wheel hub to rotate stably;

Step 4: After polishing one side of the wheel hub, start the first motor 62 to drive the fixed frame 63 and the clamping frame 64 inside the movable frame 61 to rotate, so as to realize the turning of the wheel hub;

Step 5: Start the telescopic cylinder 74, so that the mounting seat 75 drives the fourth motor 76 to move downward, so that the polishing wheel 77 fits the outer surface of the hub. The fourth motor 76 drives the polishing wheel 77 to rotate, and cooperates with the driving roller 65 to achieve efficient and stable polishing of the hub;

Step 6: During the polishing process, start the power assembly 73, and drive the gear 734 to rotate through the fifth motor 733, which engages with the rack 732 to make the third slider 72 slide on the inside of the top rail frame 71, driving the telescopic cylinder 74 and the fourth motor 76 and polishing wheel 77 at the bottom to linearly move, adapting to the polishing process of wheels of different sizes and various positions, and at the same time using the flipping rotation of the wheel hub to improve adaptability and efficiency.

The working principle of the present invention is as follows: by arranging the driving mechanism 3 and the clamping mechanism 6 to cooperate with each other, the device can be operated by starting the third motor 313 during use, and the third motor 313 is used to drive the transmission pulley 311 to rotate, and the transmission pulleys 311 are connected by a transmission belt transmission. At this time, the two sets of transmission pulleys 311 can be synchronously driven to rotate through the transmission belt cooperation transmission. The rotation of the two sets of transmission pulleys 311 can synchronously drive the two sets of screw rods to rotate. The rotation of the two sets of screw rods can synchronously drive the second slider 34 to slide on the inner side of the slide groove 32, and the two ends of the second screw rod 33 have opposite thread rotation directions. At this time, the two second sliders 34 can be synchronously driven to slide relative to each other. At this time, the second slider 34 can drive the clamping mechanism 6 to displace relative to each other. The mutual displacement of the clamping mechanism 6 can stably clamp and position wheel hubs of different sizes, which can improve the overall clamping adaptability of the device. At the same time, its automatic drive design can quickly and automatically clamp and position, which can improve the overall performance of the device.

By setting the clamping mechanism 6, the device can drive the clamping mechanism 6 to move relative to each other through the driving mechanism 3 during use. At this time, during the movement of the second slider 34, the movable frame 61 can be driven to move relative to each other through the second slider 34, and the displacement of the movable frame 61 can drive the clamping frame 64 to move relative to each other. The top view of the clamping frame 64 is V-shaped, and the clamping frame 64 can stably clamp and position wheel hubs of different diameters. At the same time, during the clamping process, the inner side of the driving roller 65 and the outer surface of the wheel hub are fitted and connected. At this time, by starting the second motor 66, a driving roller 65 can be driven to rotate by the second motor 66, and the rotation of the driving roller 65 can drive the wheel hub located on the inner side of the clamping frame 64 to rotate. At this time, the welding mechanism 7 is operated to cause the polishing wheel 77 to contact the outer surface of the wheel hub. As the wheel hub rotates, the wheel hub can be automatically polished and polished. At the same time, during the polishing process, the sixth motor 672 can be operated. The sixth motor 672 drives the first screw rod 673 to rotate. The rotation of the first screw rod 673 can drive the first slider 674 to slide back and forth at the two ends of the inner side of the outer vertical rail 671. The first slider 674 drives the limit frame 675 to move, which can drive the clamping block 676 to further clamp and position the wheel hub, so as to prevent the wheel hub from falling off. At the same time, during the rotation of the wheel hub, the ball bearing 677 can assist in fitting the wheel hub, so that the overall rotation of the wheel hub is relatively stable. After one surface of the wheel hub is polished, the first motor 62 can be started to drive the fixed frame 63 and the clamping frame 64 on the inner side of the movable frame 61 to rotate. The clamped wheel hub can be turned over by adjusting the rotation of the fixed frame 63 and the clamping frame 64, so that the device can be freely turned over during the polishing process. At the same time, the wheel hub can be driven to be in a rotating state during the turning process, so that the equipment can flexibly polish the outer surface of the wheel hub, which can improve the overall processing convenience and processing efficiency of the device.

By setting the welding mechanism 7, the device can be operated by starting the telescopic cylinder 74 during the welding process, and the telescopic cylinder 74 is used to drag the mounting seat 75 to drive the fourth motor 76 to move downward. The fourth motor 76 can drive the polishing wheel 77 to fit the outer surface of the wheel hub. The fourth motor 76 drives the polishing wheel 77 to rotate, and the driving roller 65 drives the wheel hub itself to rotate, so that the wheel hub can be polished efficiently and stably. During the polishing process, the power assembly 73 can be started to operate. At this time, the fifth motor 733 drives the gear 734 to rotate, and the gear 734 is meshed with the rack 732. The rack 732 is meshed with the rack 734, and the rack 734 is meshed with the rack 732. 32 is fixedly connected to one side of the top rail frame 71, and as the gear 734 rotates, the third slider 72 can be driven to slide on the inner side of the top rail frame 71. Through the sliding displacement of the third slider 72, the telescopic cylinder 74 and the fourth motor 76 and the polishing wheel 77 at the bottom thereof can be driven to slide linearly, so that the device can flexibly adapt to the polishing processing of wheel hubs of different sizes. At the same time, its adjustable design can also adapt to the polishing processing of various positions of the wheel hub, and the wheel hub itself is designed to flip and rotate, so that the wheel hub as a whole can be flexibly adapted to the polishing processing, which can improve the overall polishing adaptation performance and polishing efficiency of the device as a whole, and can improve the convenience of the overall production and processing of the device.

Claims (9)

1. An automatic grinding robot for aluminum alloy wheels, comprising a base (1), characterized in that: a support frame (2) is fixedly mounted on the top of the base (1), a mounting frame (5) is fixedly mounted on the upper end of the support frame (2), a driving mechanism (3) is movably mounted inside the mounting frame (5), a clamping mechanism (6) is fixedly mounted on the inner side of the driving mechanism (3), a support frame (4) is fixedly mounted in the middle of the top rear side of the base (1), and a welding mechanism (7) is fixedly mounted on the top of the support frame (4); The clamping mechanism (6) comprises a movable frame (61), the movable frame (61) is fixedly mounted on the inner side of the driving mechanism (3), a first motor (62) is fixedly mounted in the middle of the outer side of the movable frame (61), the output end of the first motor (62) passes through the movable frame (61) and is fixedly mounted with a fixed frame (63), a clamping frame (64) is fixedly mounted on the inner side of the fixed frame (63), a driving roller (65) is rotatably connected to the inner side of the clamping frame (64) at equal intervals, a second motor (66) is fixedly mounted on one side of the top of the fixed frame (63), the output end of the second motor (66) passes through the fixed frame (63) and is fixedly connected to the top of a driving roller (65), and a limiting component (67) is fixedly mounted in the middle of the outer side of the fixed frame (63). 2. An automatic aluminum alloy wheel hub grinding robot according to claim 1, characterized in that the overall top view shape of the fixing frame (63) is V-shaped, and the clamping frame (64) is concave. 3. An automatic grinding robot for aluminum alloy wheels according to claim 2, characterized in that: the limiting component (67) includes an outer vertical rail (671), the outer vertical rail (671) is fixedly installed on the middle part of the outer side of the fixing frame (63), a sixth motor (672) is fixedly installed on the top of the outer vertical rail (671), the output end of the sixth motor (672) passes through the outer vertical rail (671) and is fixedly installed with a first screw rod (673), the two ends of the first screw rod (673) have opposite thread rotation directions, the first screw rod (673) is rotatably connected to the inner side of the vertical rail, the two ends of the first screw rod (673) are both threadedly connected to the first slider (674), the first slider (674) is slidably connected to the two ends inside the external force rail, and a limiting frame (675) is fixedly installed on the inner side of the first slider (674). 4. An automatic aluminum alloy wheel hub grinding robot according to claim 3, characterized in that: a clamping block (676) is fixedly installed on the inner end of the limiting frame (675), and both inner ends of the clamping block (676) are rotatably connected with balls (677). 5. An automatic aluminum alloy wheel hub grinding robot according to claim 1, characterized in that: the driving mechanism (3) includes a driving component (31) and a slide groove (32), the driving component (31) is fixedly installed on one side of the mounting frame (5), the slide groove (32) is opened on both sides of the mounting frame (5), the interior of the slide groove (32) is rotatably connected with a second screw rod (33), the two ends of the second screw rod (33) have opposite thread rotation directions, the two ends of the second screw rod (33) are threadedly connected with a second slider (34), the second slider (34) is slidably connected to the inner side of the slide groove (32), and the movable frame (61) is fixedly installed on the inner side of the second slider (34). 6. An automatic aluminum alloy wheel hub grinding robot according to claim 5, characterized in that: the driving component (31) includes a transmission pulley (311) and a side frame (312), the side frame (312) is fixedly installed at the front end of one side of the mounting frame (5), the transmission pulley (311) is rotatably connected to the front and rear ends of one side of the mounting frame (5) close to the side frame (312), the transmission pulleys (311) are connected by a transmission belt transmission, the inner side of the transmission pulley (311) is fixedly connected to the outer end of the second screw rod (33), the outer side of the side frame (312) is fixedly installed with a third motor (313), and the output end of the third motor (313) passes through the side frame (312) and is fixedly connected to a transmission pulley (311). 7. An automatic grinding robot for aluminum alloy wheels according to claim 6, characterized in that: the welding mechanism (7) comprises a top rail frame (71), the top rail frame (71) is fixedly mounted on the upper end of the support frame (4), the inner side of the top rail frame (71) is slidably connected with a third slider (72), one side of the third slider (72) is fixedly mounted with a power assembly (73), the top of the third slider (72) is fixedly mounted with a telescopic cylinder (74), the bottom output end of the telescopic cylinder (74) passes through the third slider (72) and is fixedly mounted with a mounting seat (75), the inner side of the mounting seat (75) is fixedly mounted with a fourth motor (76), and the output end of the fourth motor (76) is mounted with a polishing grinding wheel (77) through bolts. 8. An automatic aluminum alloy wheel hub grinding robot according to claim 7, characterized in that: the power assembly (73) includes a mounting frame (731) and a rack (732), the mounting frame (731) is fixedly mounted on one side of the third slider (72), a fifth motor (733) is fixedly mounted on the outer side of the mounting frame (731), an output end of the fifth motor (733) passes through the mounting frame (731) and is fixedly mounted with a gear (734), the rack (732) is fixedly mounted on the lower end of one side of the top rail frame (71), and the rack (732) and the gear (734) are meshingly connected. 9. A method for polishing an aluminum alloy wheel hub by an automatic polishing robot, using the automatic polishing robot for aluminum alloy wheel hub according to any one of claims 1 to 8, characterized in that it comprises the following steps: Step 1: Start the third motor (313), the third motor (313) drives the transmission pulley (311) to rotate, and the two sets of transmission pulleys (311) are driven by the transmission belt to rotate synchronously, thereby driving the two sets of screw rods to rotate, so that the second slider (34) slides in the slide groove (32), during which the wheel hub is placed on the inner side of the clamping frame (64), and then the clamping mechanism (6) is driven to move relative to each other to clamp and position wheel hubs of different sizes; Step 2: During the movement of the second slider (34), the movable frame (61) and the clamping frame (64) are driven to move relative to each other, the V-shaped clamping frame (64) is used to stably clamp the wheel hubs of different diameters, and the second motor (66) is started to allow the driving roller (65) to drive the wheel hub to rotate inside the clamping frame (64); Step 3: Start the sixth motor (672) to rotate the first screw rod (673), drive the first slider (674) to slide back and forth in the outer rail (671), drive the clamping block (676) to further clamp and position the wheel hub to prevent the wheel hub from falling off, and at the same time the ball bearing (677) assists the wheel hub to rotate stably; Step 4: After polishing one side of the wheel hub, start the first motor (62) to drive the fixed frame (63) and the clamping frame (64) inside the movable frame (61) to rotate, thereby realizing the turning of the wheel hub; Step 5: Start the telescopic cylinder (74), so that the mounting seat (75) drives the fourth motor (76) to move downward, so that the polishing wheel (77) fits the outer surface of the wheel hub, and the fourth motor (76) drives the polishing wheel (77) to rotate, and cooperates with the driving roller (65) to achieve efficient and stable polishing of the wheel hub; Step 6: During the polishing process, the power assembly (73) is started, and the gear (734) is driven to rotate by the fifth motor (733), and the gear (734) is meshed with the rack (732) to slide the third slider (72) inside the top rail frame (71), driving the telescopic cylinder (74) and the fourth motor (76) and the polishing wheel (77) at the bottom to linearly move, so as to adapt to the polishing process of different sizes of wheels and various positions, and at the same time, the turning and rotation of the wheel hub is used to improve the adaptability and efficiency.