Steel ring rolling and shaping device and method

Abstract

The invention discloses a steel ring rolling and shaping device and method, and relates to the technical field of wheel machining. The steel ring rolling and shaping device comprises a rolling wheel set, a sliding assembly, a driving assembly and a steel ring positioning assembly. The rolling wheel set comprises an upper rolling wheel and a lower rolling wheel. The upper rolling wheel is used for rolling and polishing the weld joint on the upper side of the weld joint in the extending direction of the weld joint, and the lower rolling wheel is used for rolling and polishing the weld joint on the lower side of the weld joint in the extending direction of the weld joint. The sliding assembly comprises a sliding block and a supporting base. The sliding block is slidably installed on the supporting base along a straight line. The upper rolling wheel and the lower rolling wheel are both rotationally installed on the sliding block. The driving assembly is used for driving the sliding block to slide on the supporting base. The steel ring positioning assembly is used for positioning the upper end of the steel ring between the upper rolling wheel and the lower rolling wheel. Welding slag generated by butt welding of the steel ring is removed through a grinding method, the surface of the steel ring is prevented from being scratched through a slag scraping method, pressure stress is applied, and the fatigue strength of a welding seam of the steel ring is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wheel machining, in particular to a steel ring rolling shaping device and method. BACKGROUND

[0002] The wheel rim of an automobile or tractor is usually made by the method of steel plate roll welding and rolling forming. After welding, the inner and outer welds must be scraped flat at once, so that the next rolling process can be carried out. At present, the alligator type slag scraper is generally used to scrape off the welding slag, and the steel ring is scraped flat at once in the red-hot state after the roll welding. This method of scraping slag can scratch the surface of the steel ring, form scratches, affect the fatigue performance of the steel ring, and reduce the service life. Moreover, the steel ring slag scraper is composed of a machine body, a workbench, a clamping mechanism, a slag scraping mechanism, a wave pressing system and the like, and has a complex structure, great difficulty in center adjustment, low production efficiency, easy damage of key parts, and difficulty in maintenance.

[0003] In order to improve the production efficiency, it is urgent to provide a method and device with simplified structure for completing the slag scraping and shaping at once without affecting the surface of the steel ring, for removing the welding slag of the steel ring and performing the steel ring shaping. SUMMARY

[0004] The present application aims to provide a steel ring rolling shaping device and method to solve the problems in the related art, simplify the structure of the slag scraping device, improve the slag scraping efficiency, and reduce the damage to the wheel hub.

[0005] To achieve the above object, the present application provides the following solutions. The present application discloses a steel ring rolling shaping device, comprising: A rolling wheel set, comprising an upper rolling wheel and a lower rolling wheel; the upper rolling wheel is used for rolling the welding seam on the upper side of the welding seam in the extension direction of the welding seam, and the lower rolling wheel is used for rolling the welding seam on the lower side of the welding seam in the extension direction of the welding seam; A sliding assembly, comprising a sliding block and a support seat; the sliding block is linearly slidably installed on the support seat; the upper rolling wheel and the lower rolling wheel are both rotationally installed on the sliding block; A driving assembly, used for driving the sliding block to slide forward and backward on the support seat; A steel ring positioning assembly, used for positioning the upper end of the steel ring between the upper rolling wheel and the lower rolling wheel; when the sliding block slides, the upper rolling wheel and the lower rolling wheel respectively roll the welding seam in the twelve o'clock direction of the steel ring from the upper side and the lower side.

[0006] In some examples, the slider is square tubular, comprising a top plate one, a bottom plate one and two side plates one; the upper roller and the lower roller are located inside the slider and supported by the two side plates one; the side plates one are provided with a avoiding slot, which extends from one end of the side plates one to the position of the roller set, so that the slider avoids the steel ring when sliding.

[0007] In some examples, the driving assembly comprises a driving motor, a gear and a rack; the driving motor is fixedly connected to the support seat, the gear is rotatably installed on the support seat, and the rack is fixedly connected to the top plate one.

[0008] In some examples, the driving assembly further comprises a speed reducer, the output shaft of the driving motor is connected to the input shaft of the speed reducer, and the output shaft of the speed reducer is connected to the gear.

[0009] In some examples, the support seat comprises a top plate two and two side plates two, the top plate two is fixedly connected to the top ends of the two side plates two respectively; the slider is located inside the support seat, and the gear passes through the top plate two; the driving assembly further comprises a gear box, the gear box is fixedly connected to the support seat, and the gear is at least partially located in the gear box.

[0010] In some examples, the steel ring roller light shaping device further comprises a support wheel, which is rotatably installed on a wheel frame and rolls to support the slider.

[0011] In some examples, one of the slider and the support seat is fixedly connected to the linear slider, and the other is fixedly connected to the linear guide rail, and the linear slider and the linear guide rail are in sliding fit.

[0012] In some examples, the installation position of at least one of the upper roller and the lower roller on the slider can be adjusted to change the gap size between the upper roller and the lower roller.

[0013] In some examples, the steel ring positioning assembly comprises a front baffle, a rear baffle, a pull rod and a carrier roller; the front baffle and the rear baffle are both fixedly connected to the support seat and perpendicular to the sliding direction of the slider; the two ends of the pull rod are fixedly connected to the front baffle and the rear baffle respectively; the two ends of the carrier roller are rotatably installed on the front baffle and the rear baffle respectively; the front baffle is used for limiting the front end face of the steel ring, the rear baffle is used for limiting the rear end face of the steel ring, and the carrier roller is used for rolling to support the steel ring.

[0014] The application also discloses a steel ring roller light shaping method using the steel ring roller light shaping device. S1, the steel ring is positioned through the steel ring positioning assembly, the steel ring is rotated, the welding seam of the steel ring is located at the twelve o'clock direction; the upper rolling light wheel and the lower rolling light wheel are adjusted to the preset position; S2, the driving assembly is started, the sliding block slides on the support seat, and the upper rolling light wheel and the lower rolling light wheel are driven to roll the welding seam from the upper and lower sides.

[0015] The present application has the following technical effects relative to the related art: When the driving assembly drives the sliding block to slide linearly on the support seat, the upper rolling light wheel and the lower rolling light wheel translate with the sliding block and roll on the welding seam after contacting the welding seam, thereby rolling and lightening the welding seam. The driving assembly can drive the sliding block to move linearly reciprocally, thereby repeatedly rolling and lightening the welding seam until the desired effect is achieved.

[0016] Therefore, the present application removes the welding slag generated by welding of the steel ring through the rolling and lightening method, which can avoid scratching the surface of the steel ring by the traditional slag removing method, and can also apply pressure stress to improve the fatigue strength of the welding seam of the steel ring. The steel ring rolling and lightening shaping device has a simple structure and is easy to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 FIG. 1 is a structural schematic view of a steel ring rolling and lightening shaping device from one perspective in some examples of the present application; Figure 2 FIG. 2 is a structural schematic view of the steel ring rolling and lightening shaping device from another perspective in some examples of the present application; Figure 3 FIG. 3 is a height adjustment principle diagram of the upper rolling light wheel in some examples of the present application; Figure 4 FIG. 4 is a structural view of the steel ring rolling and lightening shaping device and the position relationship with the sliding block in some examples of the present application. Figure 3

[0019] In the figure: 1-driving motor; 2-gear; 3-rack; 4-sliding block; 5-upper rolling light wheel; 6-lower rolling light wheel; 7-steel ring; 8-pull rod; 9-front baffle; 10-bottom plate two; 11-rear baffle; 12-support wheel; 13-roller; 14-adjusting plate; 15-linear guide rail; 16-linear sliding block; 17-side plate two; 18-top plate two; 19-gearbox; 20-upper shaft; 21-side plate one; 22-fixing screw; 23-locking screw; 24-top plate one; 25-locking nut. DETAILED DESCRIPTION​​

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0021] The present application aims to provide a rim rolling shaping device and method to solve the problems in the related art, simplify the structure of the slag scraping device, improve the slag scraping efficiency, and reduce the damage to the wheel hub.

[0022] In order to make the above-mentioned purposes, characteristics and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0023] Referring to Figures 1-4 The present embodiment provides a rim rolling shaping device, which comprises a rolling wheel set, a sliding assembly, a driving assembly and a rim positioning assembly.

[0024] The rolling wheel set comprises an upper rolling wheel 5 and a lower rolling wheel 6. The upper rolling wheel 5 is used to roll the weld on the upper side of the weld along the extension direction of the weld, and the lower rolling wheel 6 is used to roll the weld on the lower side of the weld along the extension direction of the weld. The sliding assembly comprises a sliding block 4 and a support seat. The sliding block 4 is linearly slidingly installed on the support seat. The upper rolling wheel 5 and the lower rolling wheel 6 are both rotationally installed on the sliding block 4. The driving assembly is used to drive the sliding block 4 to slide back and forth on the support seat. The rim positioning assembly is used to position the upper end of the rim 7 between the upper rolling wheel 5 and the lower rolling wheel 6, so that when the sliding block 4 slides, the upper rolling wheel 5 and the lower rolling wheel 6 respectively roll the weld in the twelve o'clock direction of the rim 7 from the upper side and the lower side.

[0025] The working principle of the rim rolling shaping device of the present embodiment is as follows: After the rim 7 is positioned, its axis is parallel to the front-rear direction, and its weld is located at the upper end of the rim 7, i.e. in the twelve o'clock direction of the rim 7. When the driving assembly drives the sliding block 4 to linearly slide on the support seat, the upper rolling wheel 5 and the lower rolling wheel 6 translate with the sliding block 4 and at the same time roll on the weld after contacting the weld, thereby rolling the weld. The driving assembly can drive the sliding block 4 to move back and forth along a straight line, so as to repeatedly roll the weld until the desired effect is achieved.

[0026] Before rolling, the gap between the upper rolling wheel 5 and the lower rolling wheel 6 in the up-down direction is generally the thickness of the rim 7. That is, after the weld rolling is completed, the thickness at the position where the weld is located is the same as that at other positions.

[0027] The embodiment removes the welding slag of the steel ring 7 caused by butt welding by the method of burnishing, can avoid the scratch of the traditional slag removing method on the surface of the steel ring 7, and can also apply a pressure stress to improve the fatigue strength of the welding seam of the steel ring 7. The steel ring burnishing shaping device has a simple structure and is easy to maintain.

[0028] In some examples, the slider 4 is a square tubular shape, including a top plate 24, a bottom plate 21 and two side plates 21. The upper burnishing wheel 5 and the lower burnishing wheel 6 are located inside the slider 4 and are supported by the two side plates 21. The side plates 21 are provided with a avoiding slot, which extends from one end of the side plate 21 to the position of the burnishing wheel group, so that the slider 4 avoids the steel ring 7 when sliding.

[0029] By selecting the square tubular shape of the slider 4, the internal space can be used as the accommodation space of the upper burnishing wheel 5 and the lower burnishing wheel 6, so that the burnishing process is completed inside the slider 4. Therefore, the slider 4 not only can support the upper burnishing wheel 5 and the lower burnishing wheel 6, but also can block the flying welding slag in the burnishing process, so as to keep the welding slag in the bottom inside the slider 4, clean the welding slag in the bottom inside the slider 4 at one time after a period of time, prevent the flying of the welding slag particles in the burnishing process, reduce the cleaning difficulty, provide the cleaning efficiency, and improve the safety of the burnishing process.

[0030] Through the design of the avoiding slot, when the slider 4 slides close to the steel ring 7 under the driving of the driving assembly, the steel ring 7 can move to the position between the upper burnishing wheel 5 and the lower burnishing wheel 6 along the avoiding slot, and the steel ring 7 does not interfere with the slider 4.

[0031] The avoiding slot is preferably a straight slot parallel to the sliding direction of the slider 4, so that the shape of the slider 4 is similar to the crocodile mouth.

[0032] In some examples, the driving assembly includes a driving motor 1, a gear 2 and a rack 3. The driving motor 1 is fixedly connected to a support seat, the gear 2 is rotatably installed on the support seat, and the rack 3 is fixedly connected to the top plate 24.

[0033] The rack 3 is preferably fixed at the center position of the upper surface of the top plate 24, and the tooth surface faces upward. Compared with the screw and slider 4 driving mechanism, the embodiment uses the gear and rack driving mechanism, so that the slider 4 can obtain a greater moving speed, thereby improving the burnishing efficiency. In addition, the load capacity of the gear and rack driving mechanism is relatively stronger, and the installation and maintenance cost is lower.

[0034] In some examples, the driving assembly further includes a speed reducer, the output shaft of the driving motor 1 is connected to the input shaft of the speed reducer, and the output shaft of the speed reducer is connected to the gear 2.

[0035] The speed reducer provides a low-speed heavy-load driving force, so that the upper burnishing wheel 5 and the lower burnishing wheel 6 can still roll on the welding seam under the action of the greater resistance provided by the welding seam, and ensure that the burnishing process is continuously and stably carried out.

[0036] In some examples, the support base comprises a top plate II 18 and two side plates II 17, the top plate II 18 is fixedly connected with the top ends of the two side plates II 17 respectively. The sliding block 4 is located inside the support base, and the gear 2 passes through the top plate II 18. The drive assembly further comprises a gear box 19, the gear box 19 is fixedly connected with the support base, and the gear 2 is at least partially located inside the gear box 19.

[0037] All or part of the sliding process of the sliding block 4 occurs inside the support base, so that the sliding block 4 is isolated from the outside world, avoiding collision between the sliding block 4 and the materials or workers in the outside world, and the support base has the function of safety protection.

[0038] The rack 3 is fixedly connected with the top plate I 24 of the sliding block 4, and the sliding block 4 is located inside the support base. Therefore, the rack 3 is also located inside the support base, that is, the area where the gear 2 and the rack 3 are engaged is located inside the support base, avoiding the outside materials entering the engagement area of the gear 2 and the rack 3, and ensuring safety. In addition, the support base and the gear box 19 can also play a dustproof role.

[0039] Illustratively, the housing of the speed reducer is fixedly connected with the gear box 19, and the housing of the drive motor 1 is fixedly connected with the housing of the speed reducer.

[0040] In some examples, the steel ring rolling and shaping device further comprises a support wheel 12, the support wheel 12 is rotatably installed on the wheel frame and rolls to support the sliding block 4. The wheel frame is located between the two side plates I 21 in the left-right direction.

[0041] Illustratively, the number of support wheels 12 is multiple and arranged in a rectangular array, and the multiple support wheels 12 are symmetric about the vertical center plane of the sliding block 4, that is, the multiple support wheels 12 are symmetrically distributed on the left and right sides of the sliding block 4.

[0042] By using the support wheel 12 to support the sliding block 4 from below, the vertical interaction force between the sliding block 4 and the sliding connection part of the support base is reduced, and deformation is avoided.

[0043] In some examples, the sliding block 4 is fixedly connected with a linear sliding block 164 in one of the support bases and is fixedly connected with a linear guide rail 15 in the other support base, and the linear sliding block 164 and the linear guide rail 15 are in sliding fit.

[0044] Illustratively, the sliding block 4 is fixedly connected with the linear guide rail 15, and the support base is fixedly connected with the linear sliding block 164. The multiple linear guide rails 15 are symmetrically distributed on the left and right sides of the sliding block 4, and the linear sliding block 164 is fixed to one side of the side plate II 17 facing the inside of the support base.

[0045] The above arrangement places the linear sliding block 164 and at least part of the linear guide rail 15 (the front end of the linear guide rail 15 can extend out of the support base as the sliding block 4 slides forward) inside the support base, which can play a protective and dustproof role through the support base.

[0046] In some examples, the installation position of at least one of the upper rolling wheel 5 and the lower rolling wheel 6 on the sliding block 4 can be adjusted to change the gap size between the upper rolling wheel 5 and the lower rolling wheel 6.

[0047] It should be noted that different types of steel rings 7 have different size characteristics, so when the type of steel ring 7 being processed changes, the position of the rolling wheel set also needs to be changed accordingly.

[0048] In addition, since the rolling wheel set will be worn after a period of work, its diameter will decrease. By adjusting the position of the rolling wheel set, the vertical gap between the upper rolling wheel 5 and the lower rolling wheel 6 is re-adjusted to the thickness of the steel ring 7, which not only ensures the consistency of the processing effect, but also prolongs the service life of the rolling wheel set, avoids frequent replacement of the rolling wheel set, reduces production costs, and avoids reducing production efficiency due to replacement of the rolling wheel set.

[0049] In some examples, the upper rolling wheel 5 and the lower rolling wheel 6 are both bearings, and bearings with corresponding load-carrying capacity can be selected according to the size of the radial force in the actual rolling process. The outer ring of the bearing, especially the heavy-duty bearing, has high hardness, so using a bearing with the required load-carrying capacity as the rolling wheel can be directly purchased from the market without the need for special parts processing, thereby reducing production costs.

[0050] In some examples, with reference to Figure 3The top plate 24 is provided with an installation hole penetrating from top to bottom. An adjusting screw passes through the installation hole and is screwed with a locking nut 25 and an adjusting plate 14 respectively. The locking nut 25 and the adjusting plate 14 are located on the upper and lower sides of the top plate 24 respectively. The locking nut is supported by the top plate 24, and the locking nut 25 supports the adjusting screw through thread cooperation. By rotating the locking nut 25, the height of the adjusting screw can be adjusted, thereby driving the adjusting plate 14 fixedly connected with the lower end of the adjusting screw to move up and down. The upper rolling wheel 5 is installed on the upper shaft 20, and the upper shaft 20 passes through the adjusting plate 14 and is supported by the adjusting plate. Therefore, the height of the upper rolling wheel 5 can be adjusted by the adjusting plate 14. The linear guide rail 15 is fixed to the side of the adjusting plate 14 away from the upper rolling wheel 5. The adjusting plate 14 is provided with two adjusting plates 14 located on the left and right sides of the upper rolling wheel 5 respectively to support the left and right ends of the upper shaft 20. The side plate 21 is provided between the upper rolling wheel 5 and the two adjusting plates 14, and the upper end of the side plate 21 is fixedly connected with the top plate 24. The fixing screw 22 passes through the strip-shaped slot extending in the up-down direction of the adjusting plate 14 and is fixedly connected with the side plate 21, so that the adjusting plate 14 presses the side plate 21 tightly, the adjusting plate 14 is positioned in the left-right direction by the side plate 21, and the adjusting plate 14 is assisted by the frictional force applied by the fixing screw 22 and the side plate 21. When the height of the upper rolling wheel 5 needs to be adjusted, the fixing screw 22 should be loosened first, and then the locking nut 25 is rotated. It can be understood that the hole provided on the side plate 21 for the upper shaft 20 to pass through should have a gap with the upper shaft 20 for height adjustment of the upper shaft 20.

[0051] Since only one of the upper rolling wheel 5 and the lower rolling wheel 6 needs to be adjusted in height to adapt to different types of steel rings 7, the lower rolling wheel 6 can be installed on a lower shaft, and the lower shaft is connected with the side plate 21, that is, the height of the lower shaft can be kept fixed.

[0052] The height adjustment mode of the rolling wheel is mechanical adjustment, which avoids the problems of complex structure, oil leakage and difficult maintenance of the traditional hydraulic adjustment structure, and is simple to operate, which helps to improve the production efficiency.

[0053] In some examples, the steel ring positioning assembly includes a front baffle 9, a rear baffle 11, a pull rod 8 and a carrier roller 13. The front baffle 9 and the rear baffle 11 are both fixedly connected with the support seat and are perpendicular to the sliding direction of the sliding block 4. The two ends of the pull rod 8 are fixedly connected with the front baffle 9 and the rear baffle 11 respectively. The two ends of the carrier roller 13 are rotatably installed on the front baffle 9 and the rear baffle 11 respectively. The front baffle 9 is used for limiting the front end face of the steel ring 7, the rear baffle 11 is used for limiting the rear end face of the steel ring 7, and the carrier roller 13 is used for rolling support of the steel ring 7.

[0054] When the rolling wheel group rolls the weld, the force received by the steel ring 7 includes not only the radial force but also the axial force. The front baffle 9 can limit the front end of the steel ring 7, and the rear baffle 11 can limit the rear end of the steel ring 7, so as to limit the steel ring 7 in the axial direction when the sliding block 4 slides in the front-rear direction.

[0055] It should be noted that, in order to avoid the sliding block 4 while limiting the steel ring 7 in the axial direction, the upper end of the front baffle 9 and the rear baffle 11 can be provided with a groove, which is arranged at a position corresponding to the weld of the steel ring 7, so that the front end plate and the rear end plate do not interfere with the sliding block 4.

[0056] Through the arrangement of the pull rod 8, the stability of the distance between the front baffle 9 and the rear baffle 11 can be ensured.

[0057] The two supporting rollers 13 are generally arranged, and the axes of the two supporting rollers 13 are parallel to the sliding direction of the sliding block 4, that is, extend in the front-rear direction. The two supporting rollers 13 are symmetrically arranged about the vertical center plane of the sliding block 4, so that after the steel ring 7 is placed on the two supporting rollers 13, the axis of the steel ring 7 is located on the longitudinal center plane of the sliding block 4.

[0058] For example, the number of pull rods 8 is four, and the extension direction of the pull rods 8 is the front-rear direction. The front ends of the four pull rods 8 are respectively connected to the four corners of the front baffle 9, and the rear ends of the four pull rods 8 are respectively connected to the four corners of the rear baffle 11.

[0059] In some examples, the steel ring rolling and shaping device further comprises a bottom plate two 10, and the lower ends of the side plate one 21, the side plate two 17, the front baffle 9 and the rear baffle 11 are fixed on the bottom plate two 10, that is, the bottom plate two 10 serves as the mounting base of the above structure.

[0060] For example, the mounting position of at least one of the front baffle 9 and the rear baffle 11 on the bottom plate two 10 in the front-rear direction can be adjusted to adapt to steel rings 7 of different lengths.

[0061] The embodiment also provides a steel ring rolling and shaping method, which uses the steel ring rolling and shaping device described above and comprises the following steps: S1, position the steel ring 7 through the steel ring positioning assembly, rotate the steel ring 7 so that the weld of the steel ring 7 is located at the twelve o'clock direction (i.e. the upper end), and adjust the upper rolling wheel 5 and the lower rolling wheel 6 to the preset position.

[0062] The preset position here means that the center distance between the upper rolling wheel 5 and the steel ring 7 is the sum of the radii of the upper rolling wheel 5 and the steel ring 7, and the center distance between the lower rolling wheel 6 and the steel ring 7 is the difference between the radii of the steel ring 7 and the lower rolling wheel 6. Obviously, after the upper rolling wheel 5 and the lower rolling wheel 6 are adjusted to the preset position, the gap between the upper rolling wheel 5 and the lower rolling wheel 6 is the thickness of the steel ring 7.

[0063] S2, start the driving assembly, the slider 4 slides on the support seat, drives the upper roller 5 and the lower roller 6 to roll the light weld from the upper and lower sides respectively.

[0064] The steel ring rolling shaping method removes the welding slag of the steel ring 7 due to butt welding by the rolling method, can avoid the scratch of the traditional slag removing method on the surface of the steel ring 7, can also apply the pressure stress, and improves the fatigue strength of the welding seam of the steel ring 7.

[0065] The principle and implementation mode of the present application are described by applying specific examples in the present application, and the above examples are only used to help understand the method and core idea of the present application; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the present application. In conclusion, the content of the specification should not be understood as the limitation of the present application.

Claims

1. A rim rolling shaping device characterized by, Comprise: The roller group, including the upper roller and the lower roller; the upper roller is used for rolling the welding seam on the upper side of the welding seam along the extension direction of the welding seam, and the lower roller is used for rolling the welding seam on the lower side of the welding seam along the extension direction of the welding seam; The sliding assembly, including the sliding block and the support seat; the sliding block is linearly slidably installed on the support seat; the upper roller and the lower roller are rotatably installed on the sliding block; The driving assembly is used for driving the sliding block to slide on the support seat; The steel ring positioning assembly is used for positioning the upper end of the steel ring between the upper roller and the lower roller, and the upper roller and the lower roller roll the welding seam in the twelve o'clock direction of the steel ring from the upper side and the lower side respectively when the sliding block slides.

2. The rim rolling shaping device of claim 1, wherein: The sliding block is a square tubular shape, including a top plate, a bottom plate and two side plates; the upper roller and the lower roller are located on the inner side of the sliding block and are supported by the two side plates; the side plates are provided with avoiding grooves, which extend from one end of the side plates to the position of the roller group, so that the sliding block avoids the steel ring when sliding.

3. The rim rolling shaping device of claim 2, wherein: The driving assembly includes a driving motor, a gear and a rack; the driving motor is fixedly connected with the support seat, the gear is rotatably installed on the support seat, and the rack is fixedly connected with the top plate.

4. The rim light shaping device of claim 3, wherein: The driving assembly further includes a speed reducer, the output shaft of the driving motor is connected with the input shaft of the speed reducer, and the output shaft of the speed reducer is connected with the gear.

5. The eye light shaping device for eyeglasses according to claim 3, wherein: The support seat includes a top plate and two side plates, the top plate is fixedly connected with the top ends of the two side plates respectively; the sliding block is located on the inner side of the support seat, and the gear passes through the top plate; the driving assembly further includes a gear box, the gear box is fixedly connected with the support seat, and the gear is at least partially located in the gear box.

6. The rim light shaping device of claim 1, wherein: Further comprising a support wheel, which is rotatably installed on a wheel frame and rolls to support the sliding block.

7. The eye light shaping device for a rim according to claim 1, wherein: One of the sliding block and the support seat is fixedly connected with the linear sliding block, and the other is fixedly connected with the linear guide rail, and the linear sliding block and the linear guide rail are slidably matched.

8. The rim light shaping device of claim 1, wherein: The installation position of at least one of the upper roller and the lower roller on the sliding block can be adjusted to change the gap size between the upper roller and the lower roller.

9. The rim light shaping device of claim 1, wherein: The steel ring positioning assembly includes a front baffle, a rear baffle, a pull rod and a carrier roller; the front baffle and the rear baffle are fixedly connected with the support seat and are perpendicular to the sliding direction of the sliding block; the two ends of the pull rod are fixedly connected with the front baffle and the rear baffle respectively; the two ends of the carrier roller are rotatably installed on the front baffle and the rear baffle respectively; the front baffle is used for limiting the front end face of the steel ring, the rear baffle is used for limiting the rear end face of the steel ring, and the carrier roller is used for rolling and supporting the steel ring.

10. A rim rolling shaping method characterized by, The steel ring rolling shaping device comprises the following steps: S1, positioning the steel ring through the steel ring positioning assembly, rotating the steel ring, and making the welding seam of the steel ring in the twelve o'clock direction; adjusting the upper roller and the lower roller to the preset position; S2, start the driving assembly, the slider slides on the support seat, and drives the upper and lower rolling wheels to roll the weld from the upper and lower sides, respectively.

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