Wheel roundness correction device for moped

Abstract

The invention belongs to the technical field of wheel machining, and particularly relates to a moped wheel roundness correction device which comprises a machining table, a first rotating hole is formed in the middle of the machining table, a first moving frame is arranged on one side above the first rotating hole, and a second moving frame is arranged on the side, away from the first moving frame, of the first rotating hole. A rotating assembly is installed at the top end of the side, away from the second moving frame, of the first moving frame, a wheel body is arranged between the first moving frame and the second moving frame, and multiple sets of correcting assemblies of different sizes are arranged below the wheel body. The switching assembly can automatically adjust the correction assembly with the corresponding size to the position above the machining table according to the width of the wheel body. The push frame is pushed by the wheel body to drive the rotating block to rotate to the corresponding angle, the rotating block drives the corresponding correction ball to rotate to the position below the wheel body, the corresponding correction ball can correct the wheel body, and errors caused by manual adjustment are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of wheel processing, in particular to a device for correcting the roundness of a power-assisted bicycle wheel. Background Art

[0002] As the name suggests, a power-assisted bicycle is a vehicle with internal power to assist the user in traveling. During the production process, the wheels of the power-assisted bicycle may not be round enough. At this time, the roundness of the wheels needs to be corrected. A correction device will be used to apply pressure to the wheels to deform them to achieve correction.

[0003] A patent application with the existing publication number CN118650035A discloses a snow bicycle wheel roundness correction device, which is adjusted according to the wheel diameter and axial width, and can meet the requirements of fully automatic correction of wheels of different models.

[0004] The above technical solution requires adjustment of the correction device according to the size of the wheel during use, but manual adjustment according to the size is required before each correction, which causes the correction process to take a long time. In addition, errors in the size are prone to occur during the adjustment process. The errors will cause the outer side of the wheel to be compressed and deformed during the calibration process, affecting the correction efficiency of the wheel.

[0005] To this end, the present invention provides a device for correcting the roundness of a power-assisted bicycle wheel. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a wheel roundness correction device for a power-assisted bicycle described in the present invention comprises a processing table, a first rotating hole is opened in the middle of the processing table, a first movable frame is provided on one side above the first rotating hole, a second movable frame is provided on the side of the first rotating hole away from the first movable frame, a rotating assembly is installed on the top of the first movable frame away from the second movable frame, the top of the first movable frame close to the second movable frame is rotatably connected to the rotating sleeve, and the top of the second movable frame close to the first movable frame is also rotatably connected to the rotating sleeve, a wheel body is provided between the first movable frame and the second movable frame, a plurality of correction components of different sizes are provided below the wheel body, a switching component is rotatably connected inside the first rotating hole, the plurality of correction components are connected to the switching component, and the switching component can automatically adjust the correction components of corresponding sizes to the top of the processing table according to the width of the wheel body; The switching component includes a rotating block rotatably connected to the inside of the first rotating hole, and push racks are provided at both ends of the rotating block. The correction component includes a lifting rack provided at the end of the electric telescopic rod away from the rotating block, and a correction ball is provided inside the lifting rack, and conical columns are provided on both sides above the correction ball.

[0008] Preferably, a rotating column is fixed at both ends of the rotating block, and a guide groove is provided on the outside of the rotating column. The two guide grooves are symmetrically arranged about the vertical center line of the rotating block. A push frame is provided at both ends of the rotating block, and a second rotating hole is provided at the bottom end of one side of the pushing frame. A protrusion is fixed at the top end of the second rotating hole. The second rotating hole is sleeved on the outside of the rotating column, and the protrusion is slidably connected to the inside of the guide groove. Electric telescopic rods of corresponding number and position to the correction assembly are installed on the outside of the rotating block, and the end of the electric telescopic rod away from the rotating block is fixedly connected to the correction assembly.

[0009] Preferably, a push plate is fixed to the top of the push frame close to the rotating block, and an arc plate is fixed to the top of the push plate. The two groups of arc plates are symmetrically arranged about the vertical center line of the rotating block.

[0010] Preferably, a group of first sliding grooves are opened on both sides of the first rotating hole, and each group of first sliding grooves is provided with two. The push frame is slidably connected to the inside of the first sliding groove, and a second spring is fixed to the side of the bottom end of the push frame away from the push plate, and the other end of the second spring is fixedly connected to the inner wall of the first sliding groove.

[0011] Preferably, a pressure sensor is fixed between the electric telescopic rod and the lifting frame, and the top end of the correction ball can be closely attached to the inside of the groove on the outer side of the wheel.

[0012] Preferably, the bottom ends of the two tapered columns can be closely attached to the inner surface of the wheel, and the outer metal ring of the wheel can be locked by the correction ball and the tapered columns.

[0013] Preferably, sliding holes are provided on both sides of the lifting frame, and a connecting sleeve is rotatably connected to the side of the conical column away from the correction ball. Sliding rods are fixed on both sides of the connecting sleeve, and the sliding rods are slidably connected to the inside of the sliding hole. Connecting blocks are rotatably connected to both sides of the correction ball, a second slider is fixed to the bottom end of the connecting sleeve, and a third sliding groove is provided on the top of the connecting block, and the second slider is slidably connected to the inside of the third sliding groove.

[0014] Preferably, a telescopic column is fixed to the bottom end of the connecting block, a third spring is sleeved on the outside of the telescopic column, the top end of the third spring is fixedly connected to the connecting block, and the bottom end of the third spring is fixedly connected to the lifting frame.

[0015] Preferably, a moving block is fixed at the bottom end of the first moving frame and the second moving frame, a moving groove is opened between the first slide grooves, the moving block is slidably connected to the inside of the moving groove, and a threaded rod is rotatably connected to the inside of the two moving grooves. The outer sides of the two ends of the threaded rod are provided with opposite textures, and the threaded rod is threadedly connected to the moving block. A first motor is installed on one side of the processing table, and the end of the rotating shaft of the first motor is fixedly connected to the threaded rod.

[0016] Preferably, a movable cavity is provided inside the rotating sleeve, and a plurality of guide holes are provided in the movable cavity near the fixed port, a clamping block is slidably connected inside the guide hole, and a rotating frame is rotatably connected inside the movable cavity, and the bottom end of the rotating frame near one end of the clamping block is rotatably connected to the first slider, and a second sliding groove is provided at the top of the clamping block, and the first slider is slidably connected to the inside of the second sliding groove, and a push column is slidably connected to the middle part of the rotating sleeve, and one end of the push column extends to the inside of the movable cavity, and a first spring is fixed to the end of the rotating frame away from the clamping block, and the other end of the first spring is fixedly connected to the inner wall of the movable cavity.

[0017] The beneficial effects of the present invention are as follows: 1. The present invention relates to a power-assisted bicycle wheel roundness correction device. A push frame is pushed by the wheel body to drive a rotating block to rotate to a corresponding angle. The rotating block drives a corresponding correction ball to rotate below the wheel body. The corresponding correction ball can correct the wheel body, reducing errors caused by manual adjustment.

[0018] 2. The power-assisted bicycle wheel roundness correction device described in the present invention can guide the sliding rod through the sliding hole, which can conveniently drive the tapered column to automatically adjust its position during the lifting and lowering process of the correction ball, thereby preventing the tapered column from interfering with the wheel body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the wheel body of the present invention after installation; Figure 2 This is a schematic diagram of the wheel body of the present invention before installation; Figure 3 yes Figure 2 A partial enlarged view of the middle part; Figure 4 This is a schematic diagram of the structure of the electric telescopic rod in the present invention; Figure 5 It is a schematic diagram of the push frame structure in the present invention; Figure 6 It is a schematic diagram of the rotating block structure in the present invention; Figure 7 It is a schematic diagram of the lifting frame structure of the present invention; Figure 8 It is a schematic diagram of the internal structure of the lifting frame in the present invention; Figure 9 This is a schematic diagram of the internal structure of the rotating sleeve in the present invention; Figure 10 It is a schematic diagram of the clamping block structure in the present invention.

[0021] In the figure: 1, processing table; 11, first rotating hole; 12, first motor; 121, threaded rod; 122, movable groove; 123, movable block; 124, first slide; 2, first movable frame; 21, rotating assembly; 22, rotating sleeve; 221, movable cavity; 222, guide hole; 223, push column; 23, second movable frame; 24, clamping block; 241, second slide; 242, first slider; 243, rotating frame; 244, first spring; 3, push frame; 3 1. Rotating block; 311. Electric telescopic rod; 312. Rotating column; 313. Guide groove; 32. Push plate; 321. Arc plate; 33. Second spring; 34. Second rotating hole; 341. Bump; 35. Lifting frame; 351. Sliding hole; 36. Correction ball; 361. Connecting block; 362. Third sliding groove; 363. Telescopic column; 364. Third spring; 37. Conical column; 371. Connecting sleeve; 372. Sliding rod; 373. Second slider; 4. Wheel body. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1 to 2 As shown, a power-assisted bicycle wheel roundness correction device described in an embodiment of the present invention includes a processing table 1, a first rotating hole 11 is opened in the middle of the processing table 1, a first movable frame 2 is provided on one side above the first rotating hole 11, a second movable frame 23 is provided on the side of the first rotating hole 11 away from the first movable frame 2, a rotating component 21 is installed on the top of the first movable frame 2 away from the second movable frame 23, the top of the first movable frame 2 close to the second movable frame 23 is rotatably connected to the rotating sleeve 22, and the top of the second movable frame 23 close to the first movable frame 2 is also rotatably connected to the rotating sleeve 22, a wheel body 4 is provided between the first movable frame 2 and the second movable frame 23, a plurality of groups of correction components of different sizes are provided below the wheel body 4, the interior of the first rotating hole 11 is rotatably connected to a switching component, the plurality of correction components are connected to the switching component, and the switching component can automatically adjust the correction component of the corresponding size to the top of the processing table 1 according to the width of the wheel body 4; The switching assembly includes a rotating block 31 rotatably connected to the inside of the first rotating hole 11. Pushing frames 3 are provided at both ends of the rotating block 31. The correction assembly includes a lifting frame 35 provided at the end of the electric telescopic rod 311 away from the rotating block 31. The lifting frame 35 is provided with a correction ball 36 inside. Conical columns 37 are provided on both sides above the correction ball 36. During the production process of the power-assisted bicycle wheel, the metal is bent into shape under the force of the processing machinery. After the wheel is processed, its roundness is tested. A wheel with unqualified roundness will be bumpy when the power-assisted bicycle is running, and will affect the stability of the tire. Therefore, when a wheel with unqualified roundness is detected, it needs to be corrected. At this time, the unqualified wheel body 4 is placed downward from the top of the first rotating hole 11. At this time, the wheel body 4 can drive the switching component. During the downward movement of the wheel body 4, it drives the push racks 3 on both sides, and the push racks 3 drive the rotating block 31 to rotate. The sizes of the multiple groups of correction components are arranged in order from small to large. Therefore, the larger the size of the wheel body 4, the longer the push rack 3 moves. The longer the push rack 3 moves, the greater the angle of rotation of the rotating block 31. The greater the rotation angle, the larger the correction component will drive the larger the size to rotate to the bottom of the wheel body 4, so that the matching correction component can be switched according to the different sizes of the wheel body 4. The larger the size of the correction component, the larger the size of the correction ball 36 and the conical column 37; When the width of the wheel body 4 is the preset minimum size, the wheel body 4 matches the minimum size correction component, the push frame 3 will not be pushed, and the position of the correction component remains fixed. At this time, after the wheel body 4 moves between the first movable frame 2 and the second movable frame 23, it is fixed between the first movable frame 2 and the second movable frame 23 by the two rotating sleeves 22. Then the correction component moves to the bottom end position of the wheel body 4. At this time, the rotating assembly 21 drives the rotating sleeve 22 to rotate, which can make the wheel body 4 rotate slowly. While the wheel body 4 rotates, the correction component corrects the wheel body 4, and the correction ball 36 rolls inside the groove on the outer side of the wheel body 4 to correct the groove of the wheel body. During the correction process, the conical column 37 squeezes and resets the deformed parts on both sides of the wheel body 4 to the center, so that the inside and outside of the metal ring of the wheel assembly 4 are corrected at the same time. During the correction process, the correction component remains fixed. Therefore, when the wheel body 4 rotates, the deformed position will be squeezed by the correction component, so that its deformed part is adjusted. The wheel body 4 can be corrected after rotating multiple circles. When the width of the wheel body 4 is greater than the preset minimum size, the push frame 3 is pushed by the wheel body 4. At this time, the push frame 3 can drive multiple sets of correction components to rotate, and make the correction components of corresponding sizes rotate to the bottom of the wheel body 4. At this time, the wheel body 4 can be corrected by the correction balls 36 and tapered columns 37 of corresponding sizes. In this way, the correction size can be automatically adjusted when the wheel body 4 is corrected, and no manual calibration is required. The corresponding size adjustment does not require manual size control, which can prevent the adjustment error from causing deformation of the wheel body 4 during the correction process.

[0024] like Figures 1 to 6As shown, rotating columns 312 are fixed at both ends of the rotating block 31, and a guide groove 313 is provided on the outer side of the rotating column 312. The two guide grooves 313 are symmetrically arranged about the vertical center line of the rotating block 31. A second rotating hole 34 is provided at the bottom end of one side of the pushing frame 3. A protrusion 341 is fixed to the top end of the second rotating hole 34. The second rotating hole 34 is sleeved on the outside of the rotating column 312, and the protrusion 341 is slidably connected to the inside of the guide groove 313. Electric telescopic rods 311 corresponding in number and position to the correction assembly are installed on the outer side of the rotating block 31, and the end of the electric telescopic rod 311 away from the rotating block 31 is fixedly connected to the correction assembly. When the wheel body 4 is placed between the rotating sleeves 22, the outer side of the wheel body 4 will contact the pushing frames 3 on both sides, and the pushing frames 3 will be pushed to make the second rotating hole 34 slide on the outside of the rotating column 312. At this time, the protrusion 341 will slide inside the guide groove 313. At this time, the protrusion 341 will be guided by the edge of the guide groove 313 to make the rotating column 312 rotate, and the rotating column 312 drives the rotating block 31 to rotate. The rotating block 31 drives the correction assembly to rotate through the electric telescopic rod 311. At this time, the wheel body 4 drives the pushing frame 3 to move a preset distance to both sides, and the pushing frame 3 drives the protrusion 341 to make the guide groove 313 drive the rotating column 312 to rotate a preset angle. At this time, the rotating column 312 drives the rotating block 31 to make the preset corresponding correction assembly rotate to the bottom of the wheel body 4. The correction assembly can be pushed to the bottom end of the wheel body 4 through the electric telescopic rod 311. Then the correction assembly can be close to the wheel body 4 and corrected when the wheel body 4 rotates.

[0025] like Figures 1 to 5 As shown, a push plate 32 is fixed to the top of the push frame 3 near the rotating block 31, and an arc-shaped plate 321 is fixed to the top of the push plate 32. The two sets of arc-shaped plates 321 are symmetrically arranged about the vertical center line of the rotating block 31; When the wheel body 4 pushes the push frame 3 downward, in order to make it easier for the wheel body 4 to drive the push frame 3 to be set with an arc plate 321, the edge of the wheel body 4 contacts the arc plate 321 when it moves downward, and the push plate 32 is driven to move under the action of the arc surface of the arc plate 321. When the push plate 32 moves, it can drive the push frame 3 to move to both sides. The push plate 32 is used to extend the contact range between the push frame 3 and the wheel body 4, and can drive the push frame 3 to move within the length range of the push plate 32.

[0026] like Figures 1 to 5 As shown, a group of first sliding grooves 124 are formed on both sides of the first rotating hole 11, and each group of first sliding grooves 124 is provided with two. The push frame 3 is slidably connected to the inside of the first sliding grooves 124. A second spring 33 is fixed to the side of the bottom end of the push frame 3 away from the push plate 32, and the other end of the second spring 33 is fixedly connected to the inner wall of the first sliding groove 124; When the push frame 3 is pushed to move, it will slide inside the first slide groove 124. At this time, the first slide groove 124 will play a role of limiting and guiding the push frame 3, so that the push frame 3 can maintain horizontal movement during the movement process. At the same time, the second spring 33 can be squeezed when the push frame 3 moves on both sides. When the wheel body 4 is removed after correction, the elastic force of the second spring 33 will push the push frame 3 to reset, which is convenient for the next correction.

[0027] like Figures 1 to 7 As shown, a pressure sensor is fixed between the electric telescopic rod 311 and the lifting frame 35, and the top of the correction ball 36 can be closely attached to the inside of the groove on the outer side of the wheel; When the correction component is in use, it will first be driven by the rotating block 31 to rotate to the corresponding position, and then the electric telescopic rod 311 located above will be started to push the lifting frame 35 upward. At this time, the lifting frame 35 drives the correction ball 36 to stick to the bottom end of the wheel body 4. After sticking, the pressure value of the pressure sensor increases. At this time, the operation of the electric telescopic rod 311 is stopped. Then the wheel body 4 can be corrected by the correction ball 36 during the rotation. During the rotation, the correction ball 36 rolls inside the groove on the outer side of the wheel body 4, which can squeeze the protrusion of the wheel body 4 to deform it, and the deformation is achieved by squeezing.

[0028] like Figures 1 to 8 As shown, the bottom ends of the two tapered columns 37 can be tightly attached to the inner surface of the wheel, and the outer metal ring of the wheel can be locked by the correction ball 36 and the tapered column 37; The two sides of the wheel body 4 may be deformed during the processing, which will cause the outer side of the wheel body 4 to extend outward and affect the correction. Therefore, during the squeezing process of the correction ball 36 on the wheel body 4, the conical column 37 can limit the inner side of the wheel body 4. When the wheel body 4 rotates, the conical column 37 will roll with the wheel body 4. The conical column 37 can squeeze the deformed parts on both sides of the wheel body 4 toward the center and reset them, thereby achieving further correction.

[0029] like Figures 1 to 8 As shown, sliding holes 351 are formed on both sides of the lifting frame 35. A connecting sleeve 371 is rotatably connected to the side of the tapered column 37 away from the correction ball 36. Sliding rods 372 are fixed on both sides of the connecting sleeve 371. The sliding rods 372 are slidably connected to the interior of the sliding holes 351. A connecting block 361 is rotatably connected to both sides of the correction ball 36. A second slider 373 is fixed to the bottom end of the connecting sleeve 371. A third sliding groove 362 is formed on the top end of the connecting block 361. The second slider 373 is slidably connected to the interior of the third sliding groove 362. The tapered column 37 will interfere with the wheel body 4 before and after use, so the position of the tapered column 37 needs to be adjusted before and after use. Before use, the electric telescopic rod 311 pushes the lifting frame 35 toward the bottom end of the wheel body 4. At this time, the sliding rod 372 is at the highest point of the sliding hole 351. At this time, the sliding rod 372 drives the connecting sleeve 371 to make the tapered column 37 away from the correction ball 36. Then the lifting frame 35 is sleeved on the outside of the bottom end of the wheel body 4. At this time, the correction ball 36 will contact the wheel body 4. Under the thrust of the wheel body 4, the correction ball 36 will be pushed downward. When the correction ball 36 moves downward, it drives the connecting block 361 to move down. The connecting block 361 passes The second slider 373 pulls the connecting sleeve 371 downward, and the connecting sleeve 371 drives the tapered column 37 to move downward. During the movement, the sliding hole 351 guides the sliding rod 372, so that the connecting sleeve 371 can move in the direction close to the correction ball 36, and the connecting sleeve 371 pushes the tapered column 37 to move above the correction ball 36. When the sliding rod 372 slides to the vertical path inside the sliding hole 351, the tapered column 37 can be located in the area above the correction ball 36. At this time, the tapered column 37 will be attached to the inner side of the wheel body 4, and the position adjustment of the tapered column 37 can be completed. At the same time, the second slider 373 slides inside the third sliding groove 362 to adaptively adjust the connection position between the connecting sleeve 371 and the connecting block 361.

[0030] like Figures 1 to 8 As shown, a telescopic column 363 is fixed to the bottom end of the connecting block 361, and a third spring 364 is sleeved on the outside of the telescopic column 363. The top end of the third spring 364 is fixedly connected to the connecting block 361, and the bottom end of the third spring 364 is fixedly connected to the lifting frame 35; When the wheel body 4 is corrected, the correction component is first pressed against the wheel body 4, and then the electric telescopic rod 311 is controlled to adjust to the position of the preset diameter of the wheel body 4. During the rotation of the wheel body 4, the deformed area of ​​the wheel body 4 can be gradually corrected to the position of the same preset diameter.

[0031] like Figures 1 to 3As shown, a moving block 123 is fixed to the bottom end of the first moving frame 2 and the second moving frame 23, a moving groove 122 is opened between the first slide groove 124, the moving block 123 is slidably connected to the inside of the moving groove 122, and a threaded rod 121 is rotatably connected to the inside of the two moving grooves 122. The outer sides of the two ends of the threaded rod 121 are provided with opposite textures, and the threaded rod 121 is threadedly connected to the moving block 123. A first motor 12 is installed on one side of the processing table 1, and the end of the rotating shaft of the first motor 12 is fixedly connected to the threaded rod 121; When the wheel body 4 is installed inside the rotating sleeve 22, the first movable frame 2 and the second movable frame 23 are separated to the maximum distance in the initial state. Then the wheel body 4 is placed between the first movable frame 2 and the second movable frame 23, and then the first motor 12 is started to drive the threaded rod 121. The threaded rod 121 drives the moving block 123 to slide inside the moving groove 122, and the moving block 123 drives the first movable frame 2 and the second movable frame 23 to approach. At this time, the rotating sleeve 22 can be driven to be sleeved on the outside of the rotating shaft of the wheel body 4. When the wheel body 4 needs to be removed, the first motor 12 can be started to rotate in the opposite direction. At this time, the first movable frame 2 and the second movable frame 23 move in opposite directions, which can facilitate the installation and removal of the wheel body 4.

[0032] like Figures 1 to 10 As shown, a movable cavity 221 is provided inside the rotating sleeve 22, and a plurality of guide holes 222 are provided on one side of the movable cavity 221 near the fixed port. The clamping block 24 is slidably connected to the inside of the guide hole 222, and the movable cavity 221 is rotatably connected to a rotating frame 243. The bottom end of the rotating frame 243 near one end of the clamping block 24 is rotatably connected to the first slider 242, and the top of the clamping block 24 is provided with a second sliding groove 241. The first slider 242 is slidably connected to the inside of the second sliding groove 241. A push column 223 is slidably connected to the middle part of the rotating sleeve 22, and one end of the push column 223 extends into the interior of the movable cavity 221. A first spring 244 is fixed to the end of the rotating frame 243 away from the clamping block 24, and the other end of the first spring 244 is fixedly connected to the inner wall of the movable cavity 221. During this process, the second slide groove 241 and the first slider 242 are used to transmit the force of the clamping block 24 and the rotating frame 243 to lift and lower, so as to realize automatic clamping of the rotating shaft of the wheel body 4 inside the rotating sleeve 22.

[0033] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for correcting the roundness of a power-assisted bicycle wheel, characterized in that: The cam is secured to the upper portion of the workbench and is secured to a location where the cam is secured. The cam is secured to a location where the cam is secured to a location where the cam is secured. The cam is secured to a location where the cam is secured to a location where the cam is secured. The switching component includes a rotating block rotatably connected to the inside of the first rotating hole, and push racks are provided at both ends of the rotating block. The correction component includes a lifting rack provided at the end of the electric telescopic rod away from the rotating block, and a correction ball is provided inside the lifting rack, and conical columns are provided on both sides above the correction ball.

2. The device for correcting the roundness of a power-assisted bicycle wheel according to claim 1, characterized in that: A rotating column is fixed at both ends of the rotating block, and a guide groove is provided on the outside of the rotating column. The two guide grooves are symmetrically arranged about the vertical center line of the rotating block. A second rotating hole is provided at the bottom end of one side of the push frame, and a protrusion is fixed on the top end of the second rotating hole. The second rotating hole is sleeved on the outside of the rotating column, and the protrusion is slidably connected to the inside of the guide groove. Electric telescopic rods with a corresponding number and position to the correction assembly are installed on the outside of the rotating block, and the end of the electric telescopic rod away from the rotating block is fixedly connected to the correction assembly.

3. The wheel roundness correction device for a power-assisted bicycle according to claim 2, characterized in that: A push plate is fixed on the top of the push frame close to the rotating block, and an arc plate is fixed on the top of the push plate. The two sets of arc plates are symmetrically arranged about the vertical center line of the rotating block.

4. The device for correcting the roundness of a power-assisted bicycle wheel according to claim 2, characterized in that: A group of first sliding grooves are provided on both sides of the first rotating hole, and each group of first sliding grooves is provided with two. The push frame is slidably connected to the inside of the first sliding groove. A second spring is fixed to the side of the bottom end of the push frame away from the push plate, and the other end of the second spring is fixedly connected to the inner wall of the first sliding groove.

5. The wheel roundness correction device for a power-assisted bicycle according to claim 1, characterized in that: A pressure sensor is fixed between the electric telescopic rod and the lifting frame, and the top end of the correction ball can be closely attached to the inside of the groove on the outer side of the wheel.

6. The device for correcting the roundness of a power-assisted bicycle wheel according to claim 5, characterized in that: The bottom ends of the two tapered columns can be closely attached to the inner surface of the wheel, and the outer metal ring of the wheel can be locked by the correction ball and the tapered columns.

7. The device for correcting the roundness of a power-assisted bicycle wheel according to claim 6, characterized in that: Sliding holes are provided on both sides of the lifting frame, and a connecting sleeve is rotatably connected to the side of the tapered column away from the correction ball. Sliding rods are fixed on both sides of the connecting sleeve, and the sliding rods are slidably connected to the inside of the sliding holes. Connecting blocks are rotatably connected to both sides of the correction ball, and a second slider is fixed to the bottom end of the connecting sleeve. A third sliding groove is provided on the top of the connecting block, and the second slider is slidably connected to the inside of the third sliding groove.

8. The device for correcting the roundness of a power-assisted bicycle wheel according to claim 7, characterized in that: A telescopic column is fixed to the bottom end of the connecting block, a third spring is sleeved on the outside of the telescopic column, the top end of the third spring is fixedly connected to the connecting block, and the bottom end of the third spring is fixedly connected to the lifting frame.

9. The device for correcting the roundness of a power-assisted bicycle wheel according to claim 1, characterized in that: A moving block is fixed at the bottom end of the first moving frame and the second moving frame, a moving groove is opened between the first slide grooves, the moving block is slidably connected to the inside of the moving groove, a threaded rod is rotatably connected to the inside of the two moving grooves, opposite textures are set on the outer sides of the two ends of the threaded rod, the threaded rod is threadedly connected to the moving block, a first motor is installed on one side of the processing table, and the end of the rotating shaft of the first motor is fixedly connected to the threaded rod.

10. The device for correcting the roundness of a power-assisted bicycle wheel according to claim 9, characterized in that: A movable cavity is provided inside the rotating sleeve, and a plurality of guide holes are provided in the movable cavity near the fixed port. A clamping block is slidably connected inside the guide hole, and a rotating frame is rotatably connected inside the movable cavity. The bottom end of the rotating frame near one end of the clamping block is rotatably connected to the first slider, and a second sliding groove is provided on the top of the clamping block. The first slider is slidably connected to the inside of the second sliding groove. A push column is slidably connected to the middle part of the rotating sleeve, and one end of the push column extends to the inside of the movable cavity. A first spring is fixed to the end of the rotating frame away from the clamping block, and the other end of the first spring is fixedly connected to the inner wall of the movable cavity.

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