Tooth ring tooth surface tumbling method, equipment, storage medium and device

Abstract

The invention provides a gear ring tooth surface tumbling method, gear ring tooth surface tumbling equipment, a storage medium and a gear ring tooth surface tumbling device, and relates to the field of automobile transmissions.The gear ring tooth surface tumbling method comprises gear ring outer tooth tumbling and gear ring inner tooth tumbling; the gear ring tooth surface tumbling processing device comprises a gear ring outer tooth radial force loading module which is used for loading radial force to gear ring outer teeth by a first diamond standard wheel, a second diamond standard wheel and a third diamond standard wheel; the gear ring inner tooth radial force loading module is used for loading radial force to gear ring inner teeth by fourth, fifth and sixth diamond standard wheels; the outer gear ring rotation driving module is used for providing driving force for rotation of the first diamond standard wheel and driving the gear ring, the second diamond standard wheel and the third diamond standard wheel to rotate through the meshing relation with the gear ring and the outer gear ring; and the inner gear ring rotation driving module provides driving force for rotation of the fourth diamond standard wheel and drives the gear ring, the fifth diamond standard wheel and the sixth diamond standard wheel to rotate through the meshing relation with the inner gear ring of the gear ring, tumbling machining of the inner and outer tooth surfaces of the gear ring is achieved, and therefore the surface quality of the inner and outer tooth surfaces of the gear ring is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive transmissions, and more specifically to a method, apparatus, storage medium, and device for burnishing the tooth surface of a gear ring. Background Technology

[0002] Gear rings with internal and external teeth are widely used in transmission mechanisms such as planetary gear reducers and hydraulic automatic transmissions. The traditional manufacturing process involves forming the gear ring from a gear ring halo using broaching or turning processes. The machined gear ring is then directly heat-treated in a furnace. After heat treatment, the workpiece is sandblasted and polished, and only after passing inspection is it assembled into a complete unit. In the actual production of gear rings, the polishing process in this manufacturing method can improve the surface texture of the gear and enhance the surface quality of the gear ring. However, due to the high surface hardness of the heat-treated gear ring, the tooth surface experiences relatively low stress during polishing, resulting in a low product yield. Furthermore, the overflowing polishing media pollutes the production environment. Therefore, research and development of surface treatment methods and technologies for gear rings are urgently needed.

[0003] Unlike traditional tooth surface treatment methods, burnishing is applied after gear ring forming and before heat treatment. At this stage, the tooth surface has lower hardness and higher plasticity. After high-pressure extrusion finishing, burrs are effectively removed, the tooth surface texture is altered, surface stress is improved, surface roughness is reduced, and higher tooth surface quality is achieved. Therefore, how to utilize burnishing to address the problem and shortcomings of traditional tooth surface treatment methods, particularly when applied to gear rings after heat treatment, which makes it difficult to improve tooth surface quality, is one of the urgent issues that needs to be solved. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention aims to provide a method, equipment, storage medium, and apparatus for burnishing the inner and outer tooth surfaces of gear rings before heat treatment. This invention is applicable to gear ring processing in transmission mechanisms such as planetary gear reducers and hydraulic automatic transmissions, as well as high-speed precision gear transmission devices. The invention introduces a staged rolling process before heat treatment, utilizing burnishing and employing a matching standard diamond gear with the same design module and pressure angle as the workpiece. When the standard gear actively meshes with the workpiece, a master-slave transmission relationship is formed. The pneumatic control system applies a reasonable radial force to the diamond gear through a drive cylinder, which is transmitted to the gear ring tooth surface via gear meshing motion, achieving linear compression of the gear ring surface along the meshing line. As the gears rotate, the tooth surface is successively subjected to compression processing, thereby improving the surface quality and yield of the gear ring. This invention aims to solve the technical problem of poor tooth surface quality in existing gear ring manufacturing processes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: To achieve the above objectives, in a first aspect, the present invention provides a method for polishing the tooth surface of a gear ring, comprising polishing the outer teeth of the gear ring and polishing the inner teeth of the gear ring; wherein, the steps for polishing the outer teeth of the gear ring are as follows: Three diamond standard wheels with externally polished teeth mesh with the external teeth of the gear ring at equal intervals, and the first type of radial pre-rolling force is applied synchronously through the drive cylinder group. After the first number of pre-rolling revolutions is completed by the servo motor, the first type of radial positive rolling force and the first positive rolling speed are switched to complete the first number of positive rolling revolutions. The following are the steps for polishing the inner teeth of the gear ring: The three diamond standard wheels with internally polished teeth mesh with the internal teeth of the gear ring at equal intervals. A second type of radial pre-rolling force is applied synchronously by a drive cylinder group. After the servo motor completes the second number of pre-rolling revolutions, the second type of radial positive rolling force and the second positive rolling speed are switched to complete the second number of positive rolling revolutions.

[0006] As a further aspect of the present invention, when the three diamond standard wheels that have been polished on the outer teeth are equally spaced to mesh with the outer teeth of the gear ring, the first, second, and third diamond standard wheels that have been polished on the outer teeth are distributed at 120° intervals around the outer teeth of the gear ring in the same plane, and are in a fully meshed and stationary state with the outer teeth of the gear ring.

[0007] As a further aspect of the present invention, when the second radial pre-rolling force is applied synchronously by the drive cylinder group, the first radial pre-rolling force is applied to the first diamond standard wheel by the first drive cylinder, and the first radial pre-rolling force is applied to the second diamond standard wheel and the third diamond standard wheel by the second drive cylinder; and the first diamond standard wheel is driven to rotate at the first pre-rolling speed by the first servo motor, which drives the gear ring and the second and third diamond standard wheels to rotate synchronously, thereby completing the pre-rolling of the preset first number of pre-rolling revolutions.

[0008] As a further aspect of the present invention, when switching between applying a first type of radial rolling force and a first type of rolling speed, the first driving cylinder applies the first type of radial rolling force to the first diamond standard wheel, while the second driving cylinder applies the first type of radial rolling force to the second and third diamond standard wheels. The first diamond standard wheel rotates at the first type of rolling speed, and the gear ring, the second diamond standard wheel, and the third diamond standard wheel follow the first diamond standard wheel to maintain rotation, thus completing the gear ring external tooth rolling for a preset first number of rolling revolutions.

[0009] As a further aspect of the present invention, when the three diamond standard wheels that have been polished on the inner teeth of the gear ring are equally spaced and meshed with the inner teeth of the gear ring, the fourth, fifth, and sixth diamond standard wheels that have been polished on the inner teeth of the gear ring are distributed at equal intervals of 120° on the inner side of the inner teeth of the gear ring in the same plane, and are in a fully meshed and stationary state with the inner teeth of the gear ring.

[0010] As a further aspect of the present invention, when the second radial pre-rolling force is applied synchronously by the drive cylinder group, the second radial pre-rolling force is applied to the fourth diamond standard wheel by the third drive cylinder, and the second radial pre-rolling force is applied to the fifth and sixth diamond standard wheels by the fourth drive cylinder; and the fourth diamond standard wheel is driven to rotate at the second pre-rolling speed, thereby driving the gear ring and the fifth and sixth diamond standard wheels to rotate, thus completing the pre-rolling of the preset second number of pre-rolling revolutions.

[0011] As a further aspect of the present invention, when switching between applying a second type of radial rolling force and a second type of rolling speed, the third drive cylinder applies the second type of radial rolling force to the fourth diamond standard wheel, and the fourth drive cylinder applies the second type of radial rolling force to the fifth and sixth diamond standard wheels. The fourth diamond standard wheel rotates at the second type of rolling speed, and the gear ring, the fifth diamond standard wheel, and the sixth diamond standard wheel maintain rotation at the second type of rolling speed, thus completing the inner tooth rolling of the gear ring for a preset second number of rolling revolutions.

[0012] In a second aspect, the present invention provides a gear ring tooth surface burnishing device, including a memory, a processor, and a gear ring burnishing control program stored in the memory and executable on the processor, the gear ring burnishing control program being configured to implement the steps of the gear ring tooth surface burnishing method as described above.

[0013] Thirdly, the present invention provides a storage medium storing a gear ring burnishing control program, which, when executed by a processor, implements the steps of the gear ring tooth surface burnishing method described above.

[0014] Fourthly, the present invention provides a gear ring tooth surface burnishing apparatus, comprising: The radial force loading module for the outer tooth of the gear ring is used to apply radial force to the outer tooth of the gear ring by the first, second, and third diamond standard wheels. The radial force loading module for the inner teeth of the gear ring is used to apply radial force to the inner teeth of the gear ring by the fourth, fifth, and sixth diamond standard wheels. The external gear ring rotation drive module provides driving force for the rotation of the first diamond standard wheel, and drives the gear ring, the second diamond standard wheel, and the third diamond standard wheel to rotate through the meshing relationship with the external gear ring of the gear ring; The internal gear ring rotation drive module provides driving force for the rotation of the fourth diamond standard wheel. Through its meshing relationship with the internal gear ring, it drives the gear ring, the fifth diamond standard wheel, and the sixth diamond standard wheel to rotate.

[0015] As a further embodiment of the present invention, the gear ring tooth surface polishing device comprises an external tooth polishing device and an internal tooth polishing device. The external tooth polishing device consists of a left-position first diamond standard wheel, a left-position second diamond standard wheel, a left-position third diamond standard wheel, a left-position first drive cylinder, a left-position second drive cylinder, a left-position first grating ruler, a left-position first servo motor, a left-position first pulley, a first positioning seat, a left-position first slide, a left-position second slide, a left-position first tensioning wheel, and a left-position first transmission belt. The first standard wheel, the first pulley, the first tensioner, the first transmission belt, and the first servo motor of the left station are mounted on the first slide of the left station to form the first module of the left station. The first standard wheel of the left station is driven to rotate by the first servo motor of the left station. The first module of the left station is driven by the first drive cylinder of the left station and is located at the left station of the gear ring. The second standard wheel, the third standard wheel, and the second drive cylinder of the left station are mounted on the second slide of the left station to form the second module of the left station and is located at the right station of the gear ring.

[0016] As a further embodiment of the present invention, the internal gear polishing device comprises a right-position first diamond standard wheel, a right-position second diamond standard wheel, a right-position third diamond standard wheel, a right-position first drive cylinder, a right-position second drive cylinder, a right-position first grating ruler, a right-position first servo motor, a right-position first pulley, a right-position first slide, a right-position second slide, a right-position first tensioning wheel, and a right-position first transmission belt, all matching the internal teeth of the gear ring. The pulley, the first tensioning pulley of the right station, the first transmission belt of the right station, and the first servo motor of the right station are installed on the first slide of the right station to form the first module of the right station. The first diamond standard wheel of the right station is driven to rotate by the first servo motor of the right station. The first module of the right station is driven by the first drive cylinder of the right station and is located at the left station of the gear ring. The second diamond standard wheel of the right station, the third diamond standard wheel of the right station, and the second drive cylinder of the right station are installed on the second slide of the right station to form the second module of the right station and is located at the right station of the gear ring.

[0017] As a further aspect of the present invention, the gear ring tooth surface burnishing apparatus is used for extrusion treatment of the inner and outer tooth surfaces of the gear ring, including external tooth burnishing and internal tooth burnishing; the external tooth burnishing includes the following steps: The first drive cylinder, the first slide of the left station, the second drive cylinder of the left station, and the second slide of the left station are all in the retracted state; the first diamond standard wheel, the second diamond standard wheel, and the third diamond standard wheel of the left station are all away from the center of the gear ring, placing the gear ring at the first positioning seat. The cycle is started. The control system causes the first servo motor of the left station to rotate slowly at a speed of 1N revolutions per minute, driving the first diamond standard wheel of the left station. The control system reduces the air pressure of the extended air source of the first drive cylinder and the second drive cylinder of the left station by adjusting the pneumatic servo proportional valve, so that the drive cylinders on the left and right sides of the gear ring drive the standard wheels on the left and right sides to move slowly towards the center of the gear ring at the same time. When the rotating first diamond standard wheel of the left station gradually engages with the outer teeth of the gear ring, the gear ring also rotates at the same speed of 1N. As the second and third diamond standard wheels of the left workstation extend along with the second drive cylinder of the left workstation, they gradually mesh with the external teeth of the rotating gear ring and begin to rotate at a cutting speed of 1N. During the process of the first, second, and third diamond standard wheels on the left station rotating and engaging with the gear ring, the control system compares the actual position of the first grating ruler on the left station with the preset position in real time to determine whether the meshing between the three standard wheels and the outer teeth of the gear ring is sufficient. That is, when the current position is stable and greater than the preset position, it indicates that the standard teeth are properly meshed with the outer teeth of the gear ring, and the engagement is completed. The control system provides medium-pressure gas to the first drive cylinder and the second drive cylinder of the left station through a pneumatic servo proportional valve, providing radial pre-rolling force 1F1 for the meshing process of the first diamond standard wheel of the left station with the gear ring, so that the first module and the second module of the left station apply preload force to the outer teeth of the gear ring. When the radial preload 1F1 reaches a stable state, the control system increases the rotation speed of the first servo motor in the left station to 2N revolutions per minute. After completing the pre-rolling of the outer teeth of the gear ring by 1N1 turns, the control system quickly adjusts the pneumatic servo pressure proportional valve to obtain high-pressure gas for the first drive cylinder and the second drive cylinder in the left station, providing a radial positive rolling force 1F2 greater than the pre-rolling force 1F1 for the three standard wheels. After completing 1N2 revolutions of forward rolling, the first servo motor on the left station stops, and the first and second drive cylinders on both sides of the left station retract simultaneously, causing the first and second modules on the left station to retract as well. The three diamond standard wheels disengage from the outer teeth of the gear ring, and the rolling process of the outer teeth of the gear ring ends.

[0018] As a further aspect of the present invention, the internal tooth burnishing process includes the following steps: The robotic arm transfers the gear ring with the external teeth already machined from the left station to the right station for internal teeth machining; The first drive cylinder, the first slide of the right station, the second drive cylinder of the right station, and the second slide of the right station are all in the extended state. The first diamond standard wheel, the second diamond standard wheel, and the third diamond standard wheel of the right station are close to the center. The gear ring is placed on the three diamond standard wheels. The cycle is started. The control system makes the first servo motor of the right station rotate slowly at a speed of 2N revolutions per minute and drive the first diamond standard wheel of the right station. During the meshing process, the control system reduces the retraction air pressure of the first and second drive cylinders on the right station by adjusting the pneumatic servo proportional valve. This causes the drive cylinders on both sides of the gear ring to simultaneously and slowly move the standard wheels on both sides towards the inner teeth of the gear ring. As the rotating first diamond standard wheel on the right station gradually engages with the inner teeth of the gear ring, the gear ring also rotates at the same engagement speed of 2N. When the second and third diamond standard wheels on the right station retract along with the retraction of the second drive cylinder on the right station, they also gradually engage with the inner teeth of the rotating gear ring and begin to rotate at an engagement speed of 2N. During the process of the three diamond standard wheels rotating and engaging with the gear ring, the control system compares the actual position of the first grating ruler on the right station with the preset position in real time to determine whether the meshing between the three standard wheels and the inner teeth of the gear ring is sufficient. That is, when the current position is stable and less than the preset position, it means that the standard teeth and the inner teeth of the gear ring are engaged in place and the engagement is completed. The control system provides medium-pressure gas to the first and second drive cylinders of the right station through a pneumatic servo proportional valve, providing radial pre-rolling force 2F1 for the meshing process of the first diamond standard wheel and the gear ring of the right station. This causes the first and second modules of the right station to apply preload to the inner teeth of the gear ring. When the radial preload 2F1 reaches a stable value, the control system increases the rotation speed of the first servo motor of the right station to 2N revolutions per minute. After completing the pre-rolling of 2N1 turns of the inner teeth of the gear ring, the control system quickly adjusts the pneumatic servo pressure proportional valve to obtain high-pressure gas for the first and second drive cylinders of the right station, providing a radial positive rolling force 2F2 greater than the pre-rolling force 2F1 for the first, second, and third diamond standard wheels of the right station. After completing 2N2 revolutions of forward rolling, the first servo motor of the right station stops, and the first and second drive cylinders of the right station extend simultaneously, driving the first and second modules of the right station to extend simultaneously. The first, second, and third diamond standard wheels of the right station disengage from the inner teeth of the gear ring, and the rolling process of the inner teeth of the gear ring ends.

[0019] Compared with existing technologies, the tooth surface burnishing method, equipment, storage medium, and apparatus proposed in this invention have the following advantages: This invention achieves burnishing of the outer teeth of the gear ring by applying radial loading forces to the first, second, and third diamond standard wheels during their meshing rotation with the outer teeth of the gear ring. Similarly, during the meshing rotation of the diamond standard wheels with the inner teeth of the gear ring, radial loading forces are applied to the fourth, fifth, and sixth diamond standard wheels, which are then transmitted to the inner teeth of the gear ring, achieving burnishing of the inner teeth. This invention realizes burnishing of both the inner and outer tooth surfaces of the gear ring, thereby improving the surface quality of the inner and outer tooth surfaces.

[0020] These or other aspects of this application will become more apparent from the following description of embodiments. It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the scope of this application. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the accompanying drawings used in the description of the exemplary embodiments or related technologies will be briefly introduced below. The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a gear ring tooth surface burnishing device according to an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the upper structure of the external tooth rolling device in a tooth ring tooth surface rolling processing device according to an embodiment of the present invention.

[0023] Figure 3 This is a lower schematic diagram of the external tooth rolling device in a tooth ring tooth surface rolling processing apparatus according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the upper structure of the internal tooth rolling device in a tooth ring tooth surface rolling processing apparatus according to an embodiment of the present invention.

[0025] Figure 5 This is a lower schematic diagram of the internal tooth rolling device in a tooth ring tooth surface rolling processing apparatus according to an embodiment of the present invention. Detailed Implementation

[0026] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to specific examples and the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0028] It should be noted that all uses of "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two different entities or different parameters with the same name. Therefore, "first" and "second" are merely for convenience of expression and should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, such as other steps or units inherent in a process, method, system, product, or device that includes a series of steps or units.

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] The flowchart shown in the attached diagram is for illustrative purposes only and does not necessarily include all content and operations / steps, nor does it necessarily have to be performed in the order described. For example, some operations / steps can be broken down, combined, or partially merged, so the actual execution order may change depending on the actual situation.

[0031] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] See Figures 1 to 5 As shown, an embodiment of the present invention provides a method for polishing the tooth surface of a gear ring, including polishing the outer teeth of the gear ring and polishing the inner teeth of the gear ring. The steps for polishing the outer teeth of the gear ring are as follows: The first, second, and third diamond standard wheels are distributed at equal intervals of 120° and mesh with the outer teeth of the gear ring in the same plane; wherein the first, second, and third diamond standard wheels are distributed at 120° around the outer teeth of the gear ring and are in a fully meshed and stationary state with the outer teeth of the gear ring. The first type of radial pre-rolling force is applied to the first diamond standard wheel by the first drive cylinder, and the first type of radial pre-rolling force is applied to the second diamond standard wheel and the third diamond standard wheel by the second drive cylinder. The first servo motor drives the first diamond standard wheel to rotate at the first pre-roll speed, which drives the gear ring, the second diamond standard wheel, and the third diamond standard wheel to rotate synchronously, thus completing the pre-roll of the preset first number of pre-rolls. After the pre-rolling is completed, the first type of radial positive rolling force is applied to the first diamond standard wheel by the first drive cylinder, and at the same time the second drive cylinder applies the first type of radial positive rolling force to the second diamond standard wheel and the third diamond standard wheel; the first diamond standard wheel rotates at the first positive rolling speed, and the gear ring, the second diamond standard wheel and the third diamond standard wheel follow the first diamond standard wheel to keep rotating, completing the positive rolling of the gear ring external teeth for the preset first number of positive rolling revolutions.

[0033] In this embodiment, the inner tooth rolling process of the gear ring is as follows: The fourth, fifth, and sixth diamond standard wheels are distributed at equal intervals of 120° and mesh with the inner teeth of the gear ring in the same plane. The second type of radial pre-rolling force is applied to the fourth diamond standard wheel by the third drive cylinder, and the second type of radial pre-rolling force is applied to the fifth and sixth diamond standard wheels by the fourth drive cylinder. The fourth diamond standard wheel is driven to rotate at the second pre-roll speed, which drives the gear ring, the fifth diamond standard wheel, and the sixth diamond standard wheel to rotate, completing the pre-roll of the preset second pre-roll number of revolutions; After the pre-rolling is completed, the third drive cylinder applies a second type of radial positive rolling force to the fourth diamond standard wheel. The fourth drive cylinder applies a second type of radial positive rolling force to the fifth and sixth diamond standard wheels. The fourth diamond standard wheel rotates at the second positive rolling speed, and the gear ring, the fifth diamond standard wheel, and the sixth diamond standard wheel keep rotating at the second positive rolling speed, thus completing the positive rolling of the gear ring internal teeth for the preset second number of positive rolling revolutions.

[0034] This invention also provides a gear ring tooth surface burnishing device, including a memory, a processor, and a gear ring burnishing control program stored in the memory and executable on the processor. The gear ring burnishing control program is configured to implement the steps of the gear ring tooth surface burnishing method described above.

[0035] This invention also provides a storage medium storing a gear ring burnishing control program, which, when executed by a processor, implements the steps of the gear ring tooth surface burnishing method described above.

[0036] This invention also provides a gear ring tooth surface burnishing apparatus, comprising: The radial force loading module for the outer tooth of the gear ring is used to apply radial force to the outer tooth of the gear ring by the first, second, and third diamond standard wheels. The radial force loading module for the inner teeth of the gear ring is used to apply radial force to the inner teeth of the gear ring by the fourth, fifth, and sixth diamond standard wheels. External gear ring rotation drive module: provides driving force for the rotation of the first diamond standard wheel, and drives the gear ring, the second diamond standard wheel, and the third diamond standard wheel to rotate through the meshing relationship with the external gear ring of the gear ring; The internal gear ring rotation drive module provides driving force for the rotation of the fourth diamond standard wheel. Through its meshing relationship with the internal gear ring, it drives the gear ring, the fifth diamond standard wheel, and the sixth diamond standard wheel to rotate.

[0037] Among them, see Figures 1 to 5 As shown, the gear ring tooth surface polishing device consists of an external tooth polishing device 100 and an internal tooth polishing device 200. (See also...) Figures 1 to 3 As shown, the external tooth rolling device 100 consists of a left-position first diamond standard wheel 1, a left-position second diamond standard wheel 2, a left-position third diamond standard wheel 3, a left-position first drive cylinder 4, a left-position second drive cylinder 5, a left-position first grating ruler 6, a left-position first servo motor 7, a left-position first pulley 8, a first positioning seat 9, a left-position first slide 10, a left-position second slide 11, a left-position first tensioning wheel 12, and a left-position first transmission belt 13, all of which are matched with the external teeth of the gear ring. A pulley 8, a first tensioning pulley 12 on the left workstation, a first transmission belt 13 on the left workstation, and a first servo motor 7 on the left workstation are mounted on a first slide table 10 on the left workstation to form the first module on the left workstation. The first standard wheel 1 on the left workstation is driven to rotate by the first servo motor 7 on the left workstation. The first module on the left workstation is driven by a first drive cylinder 4 on the left workstation and is located on the left workstation of the gear ring. The second standard wheel 2 on the left workstation, the third standard wheel 3 on the left workstation, and a second drive cylinder 5 on the left workstation are mounted on a second slide table 11 on the left workstation to form the second module on the left workstation and is located on the right workstation of the gear ring.

[0038] Among them, see Figure 1 , Figure 4 and Figure 5As shown, the internal gear polishing device 200 consists of the following components that match the internal gear teeth of the gear ring: a right-position first diamond standard wheel 14, a right-position second diamond standard wheel 15, a right-position third diamond standard wheel 16, a right-position first drive cylinder 17, a right-position second drive cylinder 18, a right-position first grating ruler 19, a right-position first servo motor 20, a right-position first pulley 21, a right-position first slide table 22, a right-position second slide table 23, a right-position first tensioning wheel 24, and a right-position first transmission belt 25. The right-position first diamond standard wheel 14 and the right-position first pulley... 21. The first tensioning wheel 24, the first transmission belt 25, and the first servo motor 20 of the right station are installed on the first slide table 22 of the right station to form the first module of the right station. The first diamond standard wheel 14 of the right station is driven to rotate by the first servo motor 20 of the right station. The first module of the right station is driven by the first drive cylinder 17 of the right station and is located at the left station of the gear ring. The second diamond standard wheel 15, the third diamond standard wheel 16, and the second drive cylinder 18 of the right station are installed on the second slide table 23 of the right station to form the second module of the right station and is located at the right station of the gear ring.

[0039] In this embodiment of the invention, the gear ring tooth surface burnishing device is used for extrusion treatment of the inner and outer tooth surfaces of the gear ring, including external tooth burnishing and internal tooth burnishing; the external tooth burnishing includes the following steps: The first drive cylinder 4, the first slide 10, the second drive cylinder 5, and the second slide 11 of the left station are all in the retracted state; the first diamond standard wheel 1, the second diamond standard wheel 2, and the third diamond standard wheel 3 of the left station are all away from the center of the gear ring, and the gear ring is placed at the first positioning seat 9. The cycle is started. The control system causes the first servo motor 7 of the left station to rotate slowly at a speed of 1N revolutions per minute, driving the first diamond standard wheel 1 of the left station. The control system reduces the extension air pressure of the first drive cylinder 4 and the second drive cylinder 5 of the left station by adjusting the pneumatic servo proportional valve, so that the drive cylinders on the left and right sides of the gear ring drive the standard wheels on the left and right sides to move slowly towards the center of the gear ring at the same time. When the rotating first diamond standard wheel 1 of the left station gradually engages with the outer teeth of the gear ring, the gear ring also rotates at the same speed of 1N. As the second diamond standard wheel 2 and the third diamond standard wheel 3 of the left workstation extend along with the extension of the second drive cylinder 5 of the left workstation, they gradually mesh with the external teeth of the rotating gear ring and begin to rotate at a cutting speed of 1N. During the process of the first diamond standard wheel 1, the second diamond standard wheel 2, and the third diamond standard wheel 3 of the left station rotating and engaging with the gear ring, the control system makes a real-time comparison between the actual position of the first grating ruler 6 of the left station and the preset position to determine whether the meshing between the three standard wheels and the outer teeth of the gear ring is sufficient. That is, when the current position is stable and greater than the preset position, it indicates that the standard teeth and the outer teeth of the gear ring are engaged in place and the engagement is completed. The control system provides medium-pressure gas to the first drive cylinder 4 and the second drive cylinder 5 of the left station through a pneumatic servo proportional valve, providing radial pre-rolling force 1F1 for the meshing process of the first diamond standard wheel 1 of the left station with the gear ring, so that the first module of the left station and the second module of the left station apply pre-tightening force to the outer teeth of the gear ring. When the radial preload 1F1 reaches a stable value, the control system increases the rotation speed of the first servo motor 7 in the left station to 2N revolutions per minute. After completing the pre-rolling of the outer tooth of the gear ring 1N1 times, the control system quickly adjusts the pneumatic servo pressure proportional valve to obtain high-pressure gas for the first drive cylinder 4 and the second drive cylinder 5 in the left station, providing a radial positive rolling force 1F2 greater than the pre-rolling force 1F1 for the three standard wheels. After completing 1N2 revolutions of forward rolling, the first servo motor 7 of the left station stops, and the first drive cylinder 4 and the second drive cylinder 5 of the left station on both sides retract simultaneously, driving the first module and the second module of the left station to retract simultaneously as well. The three diamond standard wheels disengage from the outer teeth of the gear ring, and the rolling process of the outer teeth of the gear ring ends.

[0040] In this embodiment of the invention, the internal tooth burnishing process includes the following steps: The robotic arm transfers the gear ring with the external teeth already machined from the left station to the right station for internal teeth machining; The first drive cylinder 17, the first slide 22, the second drive cylinder 18, and the second slide 23 of the right station are all in the extended state. The first diamond standard wheel 14, the second diamond standard wheel 15, and the third diamond standard wheel 16 of the right station are close to the center. The gear ring is placed on the three diamond standard wheels. The cycle is started. The control system causes the first servo motor 20 of the right station to rotate slowly at a speed of 2N revolutions per minute and drive the first diamond standard wheel 14 of the right station. During the meshing process, the control system reduces the retraction air pressure of the first drive cylinder 17 and the second drive cylinder 18 of the right station by adjusting the pneumatic servo proportional valve. This causes the drive cylinders on the left and right sides of the gear ring to simultaneously and slowly move the standard wheels on the left and right sides towards the inner teeth of the gear ring. When the rotating first diamond standard wheel 14 of the right station gradually engages with the inner teeth of the gear ring, the gear ring also rotates at the same engagement speed of 2N. When the second diamond standard wheel 15 and the third diamond standard wheel 16 of the right station retract along with the retraction of the second drive cylinder 18 of the right station, they also gradually engage with the inner teeth of the rotating gear ring and begin to rotate at an engagement speed of 2N. During the process of the three standard diamond wheels rotating and engaging with the gear ring, the control system compares the actual position of the first grating ruler 19 on the right station with the preset position in real time to determine whether the meshing between the three standard wheels and the inner teeth of the gear ring is sufficient. That is, when the current position is stable and less than the preset position, it indicates that the standard teeth and the inner teeth of the gear ring are engaged in place and the engagement is completed. The control system provides medium-pressure gas to the first drive cylinder 17 and the second drive cylinder 18 of the right station through a pneumatic servo proportional valve, providing radial pre-rolling force 2F1 for the engagement process of the first diamond standard wheel 14 of the right station with the gear ring, so that the first module and the second module of the right station apply pre-tightening force to the inner teeth of the gear ring. When the radial pre-tightening force 2F1 reaches stability, the control system increases the rotation speed of the first servo motor 20 of the right station to 2N revolutions per minute. After completing the pre-rolling of 2N1 turns of the inner teeth of the gear ring, the control system quickly adjusts the pneumatic servo pressure proportional valve to obtain high-pressure gas for the first drive cylinder 17 and the second drive cylinder 18 of the right station, providing a radial positive rolling force 2F2 greater than the pre-rolling force 2F1 for the first diamond standard wheel 14, the second diamond standard wheel 15, and the third diamond standard wheel 16 of the right station. After completing 2N2 turns of forward rolling, the first servo motor 20 of the right station stops, and the first drive cylinder 17 and the second drive cylinder 18 of the right station extend simultaneously, driving the first module and the second module of the right station to extend simultaneously. The first diamond standard wheel 14, the second diamond standard wheel 15, and the third diamond standard wheel 16 of the right station disengage from the inner teeth of the gear ring, and the rolling process of the inner teeth of the gear ring ends.

[0041] This invention achieves burnishing of the outer teeth of the gear ring by applying radial loading forces to the first, second, and third diamond standard wheels during their meshing rotation with the outer teeth of the gear ring. Similarly, during the meshing rotation of the diamond standard wheels with the inner teeth of the gear ring, radial loading forces are applied to the fourth, fifth, and sixth diamond standard wheels, which are then transmitted to the inner teeth of the gear ring, achieving burnishing of the inner teeth. This invention realizes burnishing of both the inner and outer tooth surfaces of the gear ring, thereby improving the surface quality of the inner and outer tooth surfaces.

[0042] The above are exemplary embodiments disclosed in this invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this invention as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this invention may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.

[0043] It should be understood that, as used herein, the singular form "a" is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations of one or more of the associatedly listed items. The embodiment numbers disclosed above are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0044] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of different aspects of the invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A method for polishing the tooth surface of a gear ring, characterized in that, This includes the burnishing of the external teeth and the internal teeth of the gear ring; the burnishing steps for the external teeth are as follows: Three diamond standard wheels with externally polished teeth mesh with the external teeth of the gear ring at equal intervals, and the first type of radial pre-rolling force is applied synchronously through the drive cylinder group. After the first number of pre-rolling revolutions is completed by the servo motor, the first type of radial positive rolling force and the first positive rolling speed are switched to complete the first number of positive rolling revolutions. The following are the steps for polishing the inner teeth of the gear ring: The three diamond standard wheels with internally polished teeth mesh with the internal teeth of the gear ring at equal intervals. A second type of radial pre-rolling force is applied synchronously by a drive cylinder group. After the servo motor completes the second number of pre-rolling revolutions, the second type of radial positive rolling force and the second positive rolling speed are switched to complete the second number of positive rolling revolutions.

2. The tooth surface polishing method for gear rings as described in claim 1, characterized in that, When the three diamond standard wheels that have been polished on the outer teeth are equally spaced to mesh with the outer teeth of the gear ring, the first, second, and third diamond standard wheels that have been polished on the outer teeth are distributed at 120° intervals around the outer teeth of the gear ring in the same plane, and are in a fully meshed and stationary state with the outer teeth of the gear ring.

3. The tooth surface polishing method for gear rings as described in claim 2, characterized in that, When the second type of radial pre-rolling force is applied synchronously by the drive cylinder group, the first type of radial pre-rolling force is applied to the first diamond standard wheel by the first drive cylinder, and the first type of radial pre-rolling force is applied to the second diamond standard wheel and the third diamond standard wheel by the second drive cylinder; and the first diamond standard wheel is driven to rotate at the first pre-rolling speed by the first servo motor, which drives the gear ring and the second and third diamond standard wheels to rotate synchronously, thus completing the pre-rolling of the preset first number of pre-rolling revolutions.

4. The tooth surface polishing method for gear rings as described in claim 3, characterized in that, When switching between applying the first type of radial rolling force and the first type of rolling speed, the first driving cylinder applies the first type of radial rolling force to the first diamond standard wheel, while the second driving cylinder applies the first type of radial rolling force to the second and third diamond standard wheels. The first diamond standard wheel rotates at the first type of rolling speed, and the gear ring, the second diamond standard wheel, and the third diamond standard wheel follow the first diamond standard wheel to rotate, completing the preset first number of rolling revolutions of the gear ring's external teeth.

5. The tooth surface polishing method for gear rings as described in claim 1, characterized in that, When the three diamond standard wheels with internal teeth polished are equally spaced and mesh with the internal teeth of the gear ring, the fourth, fifth, and sixth diamond standard wheels with internal teeth polished are distributed at 120° intervals on the inner side of the internal teeth of the gear ring in the same plane, and are in a fully meshed and stationary state with the internal teeth of the gear ring.

6. The tooth surface polishing method for gear rings as described in claim 5, characterized in that, When the second radial pre-rolling force is applied synchronously by the drive cylinder group, the second radial pre-rolling force is applied to the fourth diamond standard wheel by the third drive cylinder, and the second radial pre-rolling force is applied to the fifth and sixth diamond standard wheels by the fourth drive cylinder; and the fourth diamond standard wheel is driven to rotate at the second pre-rolling speed, which drives the gear ring and the fifth and sixth diamond standard wheels to rotate, thus completing the pre-rolling of the preset second number of pre-rolling revolutions.

7. The tooth surface polishing method for gear rings as described in claim 6, characterized in that, When switching to apply the second type of radial rolling force and the second type of rolling speed, the third drive cylinder applies the second type of radial rolling force to the fourth diamond standard wheel, and the fourth drive cylinder applies the second type of radial rolling force to the fifth and sixth diamond standard wheels. The fourth diamond standard wheel rotates at the second type of rolling speed, and the gear ring, the fifth diamond standard wheel, and the sixth diamond standard wheel maintain rotation at the second type of rolling speed, thus completing the preset second number of rolling revolutions of the gear ring's internal gears.

8. A tooth surface polishing device for gear rings, characterized in that, The device includes a memory, a processor, and a gear ring burnishing control program stored in the memory and executable on the processor, the gear ring burnishing control program being configured to implement the steps of the gear ring tooth surface burnishing method as described in any one of claims 1-7.

9. A storage medium, characterized in that, The storage medium stores a gear ring burnishing control program, which, when executed by a processor, implements the steps of the gear ring tooth surface burnishing method as described in any one of claims 1-7.

10. A device for burnishing the tooth surface of a gear ring, characterized in that, include: The radial force loading module for the outer tooth of the gear ring is used to apply radial force to the outer tooth of the gear ring by the first, second, and third diamond standard wheels. The radial force loading module for the inner teeth of the gear ring is used to apply radial force to the inner teeth of the gear ring by the fourth, fifth, and sixth diamond standard wheels. The external gear ring rotation drive module provides driving force for the rotation of the first diamond standard wheel, and drives the gear ring, the second diamond standard wheel, and the third diamond standard wheel to rotate through the meshing relationship with the external gear ring of the gear ring; The internal gear ring rotation drive module provides driving force for the rotation of the fourth diamond standard wheel. Through its meshing relationship with the internal gear ring, it drives the gear ring, the fifth diamond standard wheel, and the sixth diamond standard wheel to rotate.

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