Gear ring machining device based on planetary gear reducer

Abstract

The gear ring machining device based on the planetary gear reducer comprises a rack, a pretreatment area, a transfer area and a machining area are arranged on the rack, a plurality of first electric push rods are fixedly connected to the interior of the machining area, and a mounting platform is fixedly connected to the first electric push rods; a first scanning camera is arranged on one side of the installation platform and fixedly connected to the rack, a limiting sleeve is fixedly connected to the installation platform, a positioning assembly is installed on the installation platform, the output end of the positioning assembly is connected with a threaded disc, and the positioning assembly is used for driving the threaded disc to rotate. A plurality of positioning blocks arranged in a circumferential array are connected to the threaded disc in a sliding mode. By adopting a combined machining mode of combining'static broaching tool and movable workpiece 'and'bidirectional relative movement', the cantilever beam structure of the long broaching tool bar is changed, so that the tooth profile precision and the surface smoothness of the workpiece are qualitatively leap, and a guarantee is provided for producing the ultrahigh-precision planetary gear reducer gear ring.

Description

Technical Field

[0001] This invention relates to the field of gear processing technology, and more specifically, to a gear ring processing device based on a planetary gear reducer. Background Technology

[0002] The gear ring machining unit for planetary gear reducers is a special machine tool designed for precision grinding of the internal teeth of the gear ring. Its core function is to use high-precision cutting tools to grind or mill the internal teeth of the gear ring, ensuring tooth profile accuracy, surface finish, and meshing performance. This guarantees the quality of the gear ring, the core component of the planetary gear reducer. By precisely controlling tooth profile error and tooth surface roughness, it reduces transmission noise and vibration, extends equipment life, and meets the needs of high torque and high reliability scenarios.

[0003] Currently, the traditional broaching method commonly used in the industry is the "workpiece stationary, broach moving" mode. In this mode, the long broach bar is like a cantilever beam, which is prone to bending and vibration under the action of huge broaching force. This vibration is directly transmitted to the workpiece, causing the machined tooth surface to produce chatter marks and a significant decrease in accuracy. At the same time, it will also accelerate the wear of the broach and shorten its service life. More importantly, the machining accuracy of traditional broaching machines depends heavily on the accuracy of its long motion guide rail. After long-term use, the wear, straightness error, pitch or runout defects of the guide rail will be almost replicated one-to-one on the machined tooth surface, forming machining errors that are difficult to eliminate.

[0004] In summary, to improve the machining accuracy of gear rings, it is necessary to address the problem that broaches in traditional gear ring machining processes are prone to bending and vibration, leading to chatter marks on the machined tooth surface, a significant decrease in accuracy, and a shortened broach life. The solution is to enable the broach and workpiece to perform compound relative motion, which not only improves workpiece accuracy but also extends the broach's service life. Summary of the Invention

[0005] The present invention provides a gear ring machining device based on a planetary gear reducer, which aims to solve the problem that broaches in traditional gear ring machining processes are prone to bending and vibration, resulting in vibration marks on the machined tooth surface, a significant decrease in accuracy, and a shortened broach life.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a gear ring processing device based on a planetary gear reducer, comprising a frame, a pre-processing area, a transfer area, and a processing area on the frame, wherein a plurality of electric push rods are installed in the processing area, and a mounting platform is fixedly connected to the output end of each electric push rod. A scanning camera is provided on one side of the mounting platform, a limit sleeve is fixedly connected to the mounting platform, and a positioning component is installed on the mounting platform. A threaded disc is connected to the output end of the positioning component, and the positioning component is used to drive the threaded disc to rotate. A plurality of circumferentially arrayed positioning elements are slidably connected on the threaded disc. The positioning block has a chuck fixedly connected to it. The limiting sleeve is equipped with several compensation components arranged in a circular array. The output end of the compensation component is connected to a compensation plate. The compensation component is used to drive the compensation plate to move vertically. A column is fixedly connected to the frame. The column is provided with a limiting protrusion. An electric push rod three is fixedly connected to the column. The output end of the electric push rod three is fixedly connected to a slider. The slider and the limiting protrusion are slidably connected. The electric push rod three is used to drive the slider to move along the limiting protrusion. A pull cutter and a scanning camera two are fixedly connected to the bottom of the slider. The pull cutter is provided with several pull teeth and several nozzles.

[0007] In a preferred embodiment, the positioning component includes a servo motor 1 fixedly connected to the mounting platform, a bevel gear 1 fixedly connected to the output end of the servo motor 1 via a shaft, a bevel gear 2 meshing with one side of the bevel gear 1, and several bevel gears 3 meshing with one side of the bevel gear 2. The bevel gear 1, bevel gear 2, and bevel gear 3 are all rotatably connected within the mounting platform. The bevel gear 2 is fixedly connected to a threaded disc. The servo motor 1 is used to drive the bevel gear 1 to rotate.

[0008] In a preferred embodiment, the compensation component includes an electric push rod two fixedly connected to the mounting platform, a horizontal wedge block fixedly connected to the output end of the electric push rod two, and a vertical wedge block slidably connected to the horizontal wedge block. Both the horizontal wedge block and the vertical wedge block are slidably connected to the limiting sleeve. The vertical wedge block is fixedly connected to the compensation plate. The electric push rod two is used to drive the horizontal wedge block to move along a preset direction.

[0009] In a preferred embodiment, a liquid storage tank is fixedly connected to the column, and the inside of the cutter is provided with a liquid flow channel and a nozzle connected thereto. An infusion pipe is fixedly connected between the flow channel and the liquid storage tank.

[0010] In a preferred embodiment, a rotating assembly is installed in the transfer area. The output end of the rotating assembly is connected to an electric push rod four, which is rotatably connected to the frame. The rotating assembly is used to drive the electric push rod four to rotate. The output end of the electric push rod four is connected to a fixed arm, which is used to drive the fixed arm to move in the vertical direction. The rotating assembly includes a servo motor 2 fixedly connected in the transfer area, a worm gear fixedly connected to the output end of the servo motor 2 via a shaft, and a worm wheel meshing with one side of the worm gear. The worm wheel and the electric push rod 4 are fixedly connected. The servo motor 2 is used to drive the worm gear to rotate.

[0011] In a preferred embodiment, an electric push rod five is fixedly connected inside the fixed arm, and a telescopic arm is fixedly connected to the output end of the electric push rod five. The telescopic arm and the fixed arm are slidably connected. The electric push rod five is used to drive the telescopic arm to move along the fixed arm. An electric push rod six is ​​fixedly connected to the telescopic arm, and a mounting bracket is fixedly connected to the electric push rod six. A cross plate is fixedly connected to the bottom of the mounting bracket. A clamping assembly is installed at the output end of the electric push rod six. The electric push rod six is ​​used to drive the clamping assembly to move along a preset direction. Several arc-shaped expansion blocks are connected to the power output end of the clamping assembly. The clamping assembly is used to drive the several arc-shaped expansion blocks to expand or contract synchronously.

[0012] In a preferred embodiment, the clamping assembly includes a sliding disk fixedly connected to the output end of the electric push rod, a plurality of connecting rods rotatably connected at one end to the sliding disk, and a plurality of limiting posts rotatably connected to the other end of the connecting rods. The limiting posts are fixedly connected to the arc-shaped expansion block, the sliding disk is slidably connected to the mounting bracket, and a plurality of sliding grooves are provided on the cross plate. The sliding grooves are slidably connected to the limiting posts.

[0013] In a preferred embodiment, a cleaning tank is fixedly connected to the pretreatment zone, and a cleaning component is installed in the pretreatment zone. The output end of the cleaning component is connected to a transmission rod, which is rotatably connected to the cleaning tank. The cleaning component is used to drive the transmission rod to rotate. A grinding disc is fixedly connected to the transmission rod, and the grinding disc is rotatably connected to the cleaning tank. Several ultrasonic generators are fixedly connected to the cleaning tank, and a wastewater tank is fixedly connected to the frame. The wastewater tank and the cleaning tank are connected through a pipe.

[0014] In a preferred embodiment, the cleaning component includes a servo motor three fixedly connected in the pretreatment area, a spur gear one fixedly connected to the output end of the servo motor three via a shaft, and a spur gear two meshing with one side of the spur gear one. The spur gear two is fixedly connected to a transmission rod, and the servo motor three is used to drive the spur gear one to rotate.

[0015] In a preferred embodiment, an electric push rod seven is provided directly below the cutter, the electric push rod seven is fixedly connected to the frame, and the output end of the electric push rod seven is fixedly connected to a counterhead.

[0016] The beneficial effects of this invention are as follows: 1. This invention adopts a composite machining mode that combines "static broach and dynamic workpiece" with "bidirectional relative motion", which changes the cantilever beam structure of the long broach rod and eliminates the bending and vibration caused by insufficient tool rigidity from the source. This results in a qualitative leap in the tooth profile accuracy and surface finish of the workpiece, providing a reliable guarantee for the production of ultra-high precision planetary gear reducer gear rings.

[0017] 2. This invention achieves support at both ends of the broach by rigidly fixing the broach to the top column and setting a liftable auxiliary support mechanism below its suspended end. This enhances the rigidity of the entire tool system, effectively suppresses vibration during machining, and ensures that the machining process remains stable even under heavy-load cutting conditions, thereby consistently obtaining high-quality machined surfaces.

[0018] 3. This invention integrates a high-pressure cooling channel inside the broach, which can accurately deliver cutting fluid to each cutting tooth point, improve the heat dissipation conditions of the cutting teeth, reduce tool wear failure caused by high temperature, thereby significantly extending the service life of expensive broaches and reducing the unit production cost.

[0019] 4. This invention, through the cooperation of a high-precision scanning system and a multi-point independent electric leveling mechanism, can automatically identify and compensate for the initial unevenness and micro-defects of the workpiece reference surface. Its unique staged compensation and stress relaxation waiting process allows the internal stress of the workpiece to redistribute and tend to stabilize during the clamping process, realizing truly precise and stress-free clamping, laying a perfect foundation for subsequent precision machining.

[0020] 5. This invention, through a circumferentially distributed micro-displacement compensation mechanism based on the wedge principle, can monitor in real time the overturning torque caused by uneven force on the tool during the machining process, and actively and quickly adjust the support force in the corresponding area to dynamically offset the deformation trend of the workpiece. Thus, the ideal machining posture of the workpiece is maintained throughout the broaching process, which greatly improves the stability and consistency of machining quality.

[0021] 6. This invention flexibly adjusts the speed ratio between the broach and the workpiece through the control system, which can easily adapt to the processing needs of various workpieces, from hard material gear rings to thin-walled and thick-walled gear rings. It replaces the cumbersome process of changing fixtures or making extensive adjustments to the mechanical structure, realizes rapid production changeover, and greatly improves the utilization rate of equipment and the flexibility of production organization.

[0022] 7. This invention sets up a pre-treatment area on the frame to clean and remove stains and burrs attached to the workpiece, thereby obtaining a consistent workpiece surface. This provides a reference surface for subsequent positioning, leveling, and processing, improving processing accuracy. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the frame structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the processing area structure of the present invention.

[0026] Figure 4 This is a schematic diagram of the installation platform structure of the present invention.

[0027] Figure 5 This is a schematic diagram of the threaded disc structure of the present invention.

[0028] Figure 6 This is a schematic diagram of the compensation plate structure of the present invention.

[0029] Figure 7 This is a schematic diagram of the column structure of the present invention.

[0030] Figure 8 This is a schematic diagram of the four-structure electric actuator of the present invention.

[0031] Figure 9 This is a schematic diagram of the arc-shaped expansion block structure of the present invention.

[0032] Figure 10 This is a schematic diagram of the cleaning tank structure of the present invention.

[0033] The attached diagram is labeled as follows: 1. Frame; 101. Pre-processing area; 102. Transfer area; 103. Processing area; 2. Electric push rod one; 3. Mounting platform; 4. Scanning camera one; 5. Limiting sleeve; 601. Servo motor one; 602. Bevel gear one; 603. Bevel gear two; 604. Bevel gear three; 7. Threaded disc; 8. Positioning block; 9. Claw; 1001. Electric push rod two; 1002. Horizontal wedge block; 1003. Vertical wedge block; 11. Compensation plate; 12. Column; 1201. Limiting protrusion; 13. Electric push rod three; 14. Slider; 15. Broach; 1501. Broach tooth; 1502. Nozzle; 16. Scanning camera two; 17. Storage tank; 18. Infusion tube; 1901. Servo motor II; 1902. Worm gear; 1903. Worm wheel; 20. Electric push rod IV; 21. Fixed arm; 22. Electric push rod V; 23. Telescopic arm; 24. Electric push rod VI; 25. Mounting bracket; 26. Cross plate; 2601. Slide groove; 2701. Sliding disc; 2702. Connecting rod; 2703. Limiting post; 28. Arc-shaped expansion block; 29. ​​Cleaning tank; 3001. Servo motor III; 3002. Spur gear I; 3003. Spur gear II; 31. Transmission rod; 32. Grinding disc; 33. Ultrasonic generator; 34. Wastewater tank; 35. Electric push rod VII; 36. Top head. Detailed Implementation

[0034] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0035] Refer to the instruction manual appendix Figures 1 to 10 A gear ring machining device based on a planetary gear reducer includes a frame 1. The frame 1 has a pre-processing area 101, a transfer area 102, and a machining area 103. Several electric push rods 2 are installed in the machining area 103. A mounting platform 3 is fixedly connected to the output end of each electric push rod 2. A scanning camera 4 is fixedly connected to the frame 1. A limit sleeve 5 is fixedly connected to the mounting platform 3. A positioning component is installed on the mounting platform 3. A threaded disc 7 is connected to the output end of the positioning component. The positioning component drives the threaded disc 7 to rotate. Several positioning blocks 8 arranged in a circular array are slidably connected to the threaded disc 7. A chuck 9 is fixedly connected to each positioning block 8. A limit sleeve 5 is mounted on... The machine is equipped with several compensation components arranged in a circular array. The output end of each compensation component is connected to a compensation plate 11. The compensation components are used to drive the compensation plate 11 to move vertically. A column 12 is fixedly connected to the frame 1. A limiting protrusion 1201 is provided on the column 12. An electric push rod 13 is fixedly connected to the column 12. A slider 14 is fixedly connected to the output end of the electric push rod 13. The slider 14 and the limiting protrusion 1201 are slidably connected. The electric push rod 13 is used to drive the slider 14 to move along the limiting protrusion 1201. A broach 15 and a scanning camera 16 are fixedly connected to the bottom of the slider 14. The broach 15 is provided with several broach teeth 1501 and several nozzles 1502.

[0036] It should be noted that the frame 1 adopts a modular partition design. The pre-processing area 101 is mainly responsible for the pre-processing of the workpiece surface, while the transfer area 102 is responsible for accurately transporting the pre-processed workpiece to the mounting platform 3 of the processing area 103. The processing area 103 integrates key functional modules such as positioning, clamping, compensation, and broaching. Both the mounting platform 3 and the broach 15 are equipped with power drive components for driving, realizing bidirectional relative movement and effectively eliminating the bending vibration problem caused by the long tool holder as a cantilever beam. At the same time, scanning camera 4 and scanning camera 16 are used to monitor the workpiece positioning in the initial state and the workpiece status during the processing in real time.

[0037] It is worth noting that after scanning cameras 1-4 and 2-16 scan the reference surface of the workpiece, the actual reference plane of the workpiece is fitted, and the initial tilt angle and maximum height difference between it and the theoretical horizontal plane (i.e., the vertical plane of the ideal motion trajectory of the broach) are calculated. Then, the control system calculates the theoretical compensation vector required to restore the reference plane to horizontal according to the layout of each electric push rod 2, and then begins to execute the first round of coarse compensation. To prevent instantaneous large deformation caused by internal stress of the workpiece, all electric push rods 2 synchronously and smoothly execute 50% of the theoretical compensation amount to eliminate most of the macroscopic imbalance. The system enters the waiting stage (10-30 seconds). Due to the change in the workpiece posture, the stress remaining inside due to casting, heat treatment, or previous processing will begin to redistribute, causing the workpiece to undergo small and slow creep deformation. The system first performs a second 3D scan, then compares the new scan data with the theoretical horizontal plane, calculates the remaining deviation, and generates a second round of compensation, which compensates for 80% of the remaining deviation. Since the workpiece is close to horizontal after the first round of compensation and stress relaxation, the 80% "undercompensation" strategy is to reserve space for a second, smaller stress release, thus infinitely approaching the theoretical level, rather than directly overshooting. Then, the system enters a short waiting period (e.g., 5-15 seconds) to allow the internal response of the workpiece caused by the second round of fine-tuning to stabilize. Subsequently, a final high-precision 3D scan is performed, and the final, complete remaining compensation (100%) is executed. At this point, the reference plane of the workpiece theoretically coincides with the target horizontal plane, and the error enters the micrometer-level allowable range.

[0038] Table 1. Quantitative Comparison of Composite Model and Traditional Model

[0039] Table 2 Comparison of machining parameters and effects for different types of gear rings

[0040] Refer to the instruction manual appendix Figure 5 The positioning component includes a servo motor 601 fixedly connected to the mounting platform 3, a bevel gear 602 fixedly connected to the output end of the servo motor 601 via a shaft, a bevel gear 603 meshing with one side of the bevel gear 602, and several bevel gears 604 meshing with one side of the bevel gear 603. The bevel gears 602, 603, and 604 are all rotatably connected within the mounting platform 3. The bevel gear 603 is fixedly connected to the threaded disc 7. The servo motor 601 is used to drive the bevel gear 602 to rotate.

[0041] It should be noted that after the servo motor 601 starts, the power is transmitted to the bevel gear 603 via the bevel gear 602, driving the threaded disk 7 to rotate. Simultaneously, the bevel gear 604, acting as an auxiliary gear, is located on the same plane as the bevel gear 602, ensuring the stable rotation of the bevel gear 603. The threaded disk 7 has threaded grooves that mate with each positioning block 8 (each positioning block 8 has a threaded protrusion at its bottom). When the threaded disk 7 rotates, the threaded pair drives the circumferential array of positioning blocks 8 to move synchronously radially, thereby causing the chuck 9 to precisely clamp or release the gear ring workpiece, ensuring the uniformity of the clamping force and the centering accuracy.

[0042] Refer to the instruction manual appendix Figure 6 The compensation component includes an electric push rod 1001 fixedly connected to the mounting platform 3, a horizontal wedge block 1002 fixedly connected to the output end of the electric push rod 1001, and a vertical wedge block 1003 slidably connected to the horizontal wedge block 1002. Both the horizontal wedge block 1002 and the vertical wedge block 1003 are slidably connected to the limiting sleeve 5. The vertical wedge block 1003 is fixedly connected to the compensation plate 11. The electric push rod 1001 is used to drive the horizontal wedge block 1002 to move along a preset direction.

[0043] It should be noted that the compensation plate 11 is equipped with a pressure sensing module, and the compensation plate 11 is in direct contact with the workpiece. When the broaching force causes the workpiece to generate a tilting torque (for example, when the broach 15 cuts in from the right, the right side of the workpiece sinks under force and the left side tilts up), the pressure sensing module in the compensation plate 11 detects the change in the workpiece's posture and the control system issues a command. For areas with increased load (such as the right side), the corresponding electric push rod 1001 pushes the transverse wedge block 1002 to move horizontally, and uses the inclined plane to force the vertical wedge block 1003 to move upward, lifting the compensation plate 11, thereby providing additional support force (increasing compensation) to the workpiece in that area. Conversely, for areas with decreased load, the electric push rod 1001 retracts, and the compensation plate 11 descends under the action of gravity or the reset mechanism, reducing the support force. Through the coordinated action of multiple compensation units evenly distributed in the circumference, the workpiece deformation caused by uneven broaching force can be compensated in real time, maintaining processing stability.

[0044] It is worth noting that the horizontal wedge block 1002 is constrained by the limiting sleeve 5 and can only make linear motion in the horizontal plane on the limiting sleeve 5. Similarly, the vertical wedge block 1003 is constrained by the limiting sleeve 5 and can only make linear motion in the vertical direction on the limiting sleeve 5. The two cooperate and constrain each other to achieve stable power conversion.

[0045] Refer to the instruction manual appendix Figure 7 A liquid storage tank 17 is fixedly connected to the column 12. The inside of the pull knife 15 is provided with a liquid flow channel and a nozzle 1502 connected. An infusion pipe 18 is fixedly connected between the flow channel and the liquid storage tank 17.

[0046] It should be noted that the cooling channel integrated inside the broach 15 delivers coolant directly from the reservoir 17 to each nozzle 1502 via the delivery pipe 18. The nozzle 1502 is located between two adjacent broach teeth 1501, so that the coolant is sprayed at a certain pressure between the workpiece and the broach teeth 1501, achieving sufficient cooling and lubrication of the tool and flushing away chips. While significantly reducing the temperature of the broach 15, it does not affect the strength of the broach 15.

[0047] Refer to the instruction manual appendix Figure 8 A rotating assembly is installed in the transfer area 102. The output end of the rotating assembly is connected to an electric push rod 20. The electric push rod 20 is rotatably connected to the frame 1. The rotating assembly is used to drive the electric push rod 20 to rotate. The output end of the electric push rod 20 is connected to a fixed arm 21. The electric push rod 20 is used to drive the fixed arm 21 to move in the vertical direction. The rotating assembly includes a servo motor 1901 fixedly connected in the transfer area 102, a worm 1902 fixedly connected to the output end of the servo motor 1901 via a shaft, and a worm wheel 1903 meshing with one side of the worm 1902. The worm wheel 1903 is fixedly connected to the electric push rod 20. The servo motor 1901 is used to drive the worm 1902 to rotate.

[0048] It should be noted that the servo motor 1901 is installed in the transfer area 102 and drives the electric push rod 4 to rotate through the worm gear 1902 and worm wheel 1903. It can ensure that the electric push rod 20 will not reverse due to load after being accurately positioned at any angle, thus ensuring the stability and safety of the transfer process and realizing the transfer of workpieces between the fixed arm 21 and the pretreatment area 101, the transfer area 102 and the processing area 103.

[0049] Refer to the instruction manual appendix Figure 9 An electric push rod 22 is fixedly connected inside the fixed arm 21. A telescopic arm 23 is fixedly connected to the output end of the electric push rod 22. The telescopic arm 23 and the fixed arm 21 are slidably connected. The electric push rod 22 is used to drive the telescopic arm 23 to move along the fixed arm 21. An electric push rod 24 is fixedly connected to the telescopic arm 23. A mounting bracket 25 is fixedly connected to the electric push rod 24. A cross plate 26 is fixedly connected to the bottom of the mounting bracket 25. A clamping assembly is installed at the output end of the electric push rod 24. The electric push rod 24 is used to drive the clamping assembly to move along a preset direction. Several arc-shaped expansion blocks 28 are connected to the power output end of the clamping assembly. The clamping assembly is used to drive the several arc-shaped expansion blocks 28 to expand or contract synchronously.

[0050] It should be noted that the electric push rod 22 is used to drive the telescopic arm 23 to extend and retract, and adjust the horizontal extension distance of the clamping mechanism. The electric push rod 24 provides clamping power to the clamping assembly, so that the arc-shaped expansion block 28 can be tightly fixed to the workpiece and can extend into the inner hole of the gear ring.

[0051] Refer to the instruction manual appendix Figure 9 The clamping assembly includes a sliding disc 2701 fixedly connected to the output end of the electric push rod 24, several connecting rods 2702 rotatably connected to the sliding disc 2701 at one end, and several limiting posts 2703 rotatably connected to the other end of the connecting rods 2702. The limiting posts 2703 are fixedly connected to the arc-shaped expansion block 28. The sliding disc 2701 is slidably connected to the mounting bracket 25. Several sliding grooves 2601 are provided on the cross plate 26. The sliding grooves 2601 are slidably connected to the limiting posts 2703.

[0052] It should be noted that when the workpiece is clamped, the electric push rod 24 pushes the sliding disk 2701 downward along the mounting frame 25. The sliding disk 2701 pushes each limiting post 2703 through the connecting rod 2702. Since the limiting post 2703 is constrained in the groove 2601 of the cross plate 26, it can only slide radially outward, thereby driving all the arc-shaped expansion blocks 28 to expand radially at the same time, tightening the inner hole of the gear ring workpiece. Conversely, when the electric push rod 24 pulls back the sliding disk 2701, the arc-shaped expansion blocks 28 will contract synchronously through the connecting rod 2702, releasing the workpiece.

[0053] Refer to the instruction manual appendix Figure 10 A cleaning tank 29 is fixedly connected to the pretreatment zone 101. A cleaning component is installed in the pretreatment zone 101. A transmission rod 31 is connected to the output end of the cleaning component. The transmission rod 31 is rotatably connected to the cleaning tank 29. The cleaning component is used to drive the transmission rod 31 to rotate. A grinding disc 32 is fixedly connected to the transmission rod 31. The grinding disc 32 is rotatably connected to the cleaning tank 29. Several ultrasonic generators 33 are fixedly connected in the cleaning tank 29. A wastewater tank 34 is fixedly connected in the frame 1. The wastewater tank 34 and the cleaning tank 29 are connected through a pipe.

[0054] It should be noted that the pretreatment station is used to clean and prepare the workpiece before finishing. After the ultrasonic generator 33 is started, it generates high-frequency vibration in the cleaning fluid (such as water with added cleaning agent), forming countless tiny cavitation bubbles. The impact force generated when these bubbles burst can effectively remove micro-adhesions, oil stains and fine burrs on the reference surface of the workpiece. The grinding disc 32 is driven to rotate slowly by the transmission rod 31. Its surface can be covered with fine sandpaper or flexible abrasive to perform gentle, floating grinding on the reference surface of the workpiece. At this time, the workpiece is clamped and fixed by the arc-shaped expansion block 28. The main purpose is to remove flash and burrs and obtain a uniform surface, rather than to remove a large amount of material. At the same time, the wastewater after cleaning is discharged into the wastewater tank 34 for centralized treatment through the pipe.

[0055] Refer to the instruction manual appendix Figure 10 The cleaning component includes a servo motor 3001 fixedly connected in the pretreatment area 101, a spur gear 3002 fixedly connected to the output end of the servo motor 3001 via a shaft, and a spur gear 3003 meshing with one side of the spur gear 3002. The spur gear 3003 is fixedly connected to the transmission rod 31. The servo motor 3001 is used to drive the spur gear 3002 to rotate.

[0056] It should be noted that the servo motor 3001 is installed in the pretreatment area 101. Through the meshing of spur gear 1 3002 and spur gear 2 3003, the power is transmitted to the transmission rod 31, thereby driving the grinding disc 32 to rotate at a constant speed in the cleaning tank 29. The spur gear 1 3002 and spur gear 2 3003 are size-matched to achieve stable power transmission.

[0057] Refer to the instruction manual appendix Figure 3 An electric push rod 35 is located directly below the puller 15. The electric push rod 35 is fixedly connected to the frame 1, and the output end of the electric push rod 35 is fixedly connected to the top head 36.

[0058] It should be noted that the mandrel 36 serves as an auxiliary support for the suspended end of the broach 15. When the workpiece is being loaded, the electric push rod 35 is in a retracted state, and the mandrel 36 moves downward to avoid interference with the workpiece. When the workpiece is in place and before processing begins, the electric push rod 35 extends, driving the mandrel 36 to move upward until it engages with the bottom connector of the broach 15 and provides support force. This changes the broach 15 from being fixed at one end (upper end) to being supported at both ends, significantly improving the rigidity and stability of the broach 15 during processing, reducing vibration, and further ensuring processing accuracy. At the same time, the concentric design of the mandrel 36 and the broach 15 also helps to maintain the centering of the workpiece and the broach 15.

[0059] Working principle: The frame 1 serves as the overall support. The cleaning tank 29 and ultrasonic generator 33 in the pretreatment area 101 perform ultrasonic cleaning on the workpiece. At the same time, the servo motor 3001 drives the transmission rod 31 through the spur gear 1 3002 and the spur gear 2 3003 to rotate the grinding disc 32, thereby completing the grinding and deburring of the workpiece reference surface. In the transfer zone 102, servo motor 21901 drives electric push rod 420 to rotate through worm gear 1902 and worm wheel 1903. Electric push rod 420 drives fixed arm 21 to adjust horizontal angle. Electric push rod 522 drives telescopic arm 23 to extend and retract horizontally. Electric push rod 624 pushes clamping assembly on mounting frame 25, so that sliding disc 2701 drives limit post 2703 to slide in slide groove 2601 of cross plate 26 through connecting rod 2702, driving arc expansion block 28 to expand to clamp workpiece inner hole, realizing precise transfer of workpiece between pretreatment zone 101, transfer zone 102 and processing zone 103. In processing area 103, scanning camera 4 scans the initial reference surface of the workpiece. Electric push rod 2 drives the mounting platform 3 to perform a multi-stage, anti-overshoot intelligent leveling process based on the scanning data. First, a coarse compensation is performed, with 50% of the theoretical compensation amount to eliminate the main imbalance and wait for the initial relaxation of the internal stress of the workpiece. Then, a second undercompensation is performed, with 80% of the remaining deviation to deal with minor secondary deformation. Finally, fine compensation is performed to complete 100% of the remaining compensation amount, so that the reference surface of the workpiece finally reaches the theoretical level position. After the workpiece is leveled, servo motor 601 drives the threaded disk 7 to rotate through bevel gear 602, bevel gear 603 and bevel gear 604, which drives the positioning block 8 and the chuck 9 to move radially to clamp the workpiece. The electric push rod 1001 of the compensation component drives the horizontal wedge block 1002 to move horizontally, and drives the compensation plate 11 to move vertically through the vertical wedge block 1003, compensating for processing deformation in real time. The electric push rod 13 on the column 12 drives the slider 14 to move along the limiting protrusion 1201, which in turn drives the broach 15 and the scanning camera 16 to perform processing and monitoring. At the same time, the liquid storage tank 17 supplies liquid to the flow channel inside the broach 15 through the liquid delivery pipe 18. The coolant is sprayed out from the nozzle 1502 to cool and lubricate the broach teeth 1501. The electric push rod 35 drives the top head 36 to rise, providing auxiliary support for the broach 15 and ensuring processing stability.

[0060] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A gear ring machining device based on a planetary gear reducer, characterized in that: The system includes a frame (1), which has a pre-processing area (101), a transfer area (102), and a processing area (103). Several electric push rods (2) are installed in the processing area (103). A mounting platform (3) is fixedly connected to the output end of the electric push rods (2). A scanning camera (4) is provided on one side of the mounting platform (3). A limit sleeve (5) is fixedly connected to the mounting platform (3). A positioning component is installed on the mounting platform (3). A threaded disc (7) is connected to the output end of the positioning component. The positioning component is used to drive the threaded disc (7) to rotate. Several positioning blocks (8) are slidably connected to the threaded disc (7). A chuck (9) is fixedly connected to the positioning block (8). Several compensation components are installed on the limit sleeve (5). The output end of the compensation component is connected to a compensation plate (11). The compensation component is used to drive the compensation plate (11) to move in the vertical direction. A column (12) is fixedly connected to the frame (1). A limiting protrusion (1201) is provided on the column (12). An electric push rod three (13) is fixedly connected to the column (12). A slider (14) is fixedly connected to the output end of the electric push rod three (13). The slider (14) and the limiting protrusion (1201) are slidably connected. The electric push rod three (13) is used to drive the slider (14) to move along the limiting protrusion (1201). A pull knife (15) and a scanning camera two (16) are fixedly connected to the bottom of the slider (14). The pull knife (15) is provided with several pull teeth (1501) and several nozzles (1502).

2. The gear ring machining device based on a planetary gear reducer according to claim 1, characterized in that: The positioning assembly includes a servo motor (601) fixedly connected to the mounting platform (3), a bevel gear (602) fixedly connected to the output end of the servo motor (601) via a shaft, a bevel gear (603) meshing with one side of the bevel gear (602), and several bevel gears (604) meshing with one side of the bevel gear (603). The bevel gear (602), bevel gear (603), and bevel gear (604) are all rotatably connected within the mounting platform (3). The bevel gear (603) is fixedly connected to the threaded disc (7). The servo motor (601) is used to drive the bevel gear (602) to rotate.

3. The gear ring machining device based on a planetary gear reducer according to claim 1, characterized in that: The compensation component includes an electric push rod two (1001) fixedly connected to the mounting platform (3), a horizontal wedge block (1002) fixedly connected to the output end of the electric push rod two (1001), and a vertical wedge block (1003) slidably connected to the horizontal wedge block (1002). The horizontal wedge block (1002) and the vertical wedge block (1003) are both slidably connected to the limiting sleeve (5). The vertical wedge block (1003) is fixedly connected to the compensation plate (11). The electric push rod two (1001) is used to drive the horizontal wedge block (1002) to move along a preset direction.

4. The gear ring machining device based on a planetary gear reducer according to claim 1, characterized in that: A liquid storage tank (17) is fixedly connected to the column (12). The inside of the pull knife (15) is provided with a liquid flow channel and a nozzle (1502) connected together. An infusion pipe (18) is fixedly connected between the flow channel and the liquid storage tank (17).

5. The gear ring machining device based on a planetary gear reducer according to claim 1, characterized in that: A rotating assembly is installed in the transfer area (102). The output end of the rotating assembly is connected to an electric push rod four (20). The electric push rod four (20) is rotatably connected to the frame (1). The rotating assembly is used to drive the electric push rod four (20) to rotate. The output end of the electric push rod four (20) is connected to a fixed arm (21). The electric push rod four (20) is used to drive the fixed arm (21) to move in the vertical direction. The rotating assembly includes a second servo motor (1901) fixedly connected in the transfer area (102), a worm (1902) fixedly connected to the output end of the second servo motor (1901) via a shaft, and a worm wheel (1903) meshing with one side of the worm (1902). The worm wheel (1903) is fixedly connected to an electric push rod four (20). The second servo motor (1901) is used to drive the worm (1902) to rotate.

6. The gear ring machining device based on a planetary gear reducer according to claim 5, characterized in that: An electric push rod five (22) is fixedly connected inside the fixed arm (21). A telescopic arm (23) is fixedly connected to the output end of the electric push rod five (22). The telescopic arm (23) and the fixed arm (21) are slidably connected. The electric push rod five (22) is used to drive the telescopic arm (23) to move along the fixed arm (21). An electric push rod six (24) is fixedly connected to the telescopic arm (23). A mounting bracket (25) is fixedly connected to the electric push rod six (24). A cross plate (26) is fixedly connected to the bottom of the mounting bracket (25). A clamping assembly is installed at the output end of the electric push rod six (24). The electric push rod six (24) is used to drive the clamping assembly to move along a preset direction. Several arc-shaped expansion blocks (28) are connected to the power output end of the clamping assembly. The clamping assembly is used to drive several arc-shaped expansion blocks (28) to expand or contract synchronously.

7. The gear ring machining device based on a planetary gear reducer according to claim 6, characterized in that: The clamping assembly includes a sliding disc (2701) fixedly connected to the output end of the electric push rod six (24), several connecting rods (2702) rotatably connected to the sliding disc (2701) at one end, and several limiting posts (2703) rotatably connected to the other end of the connecting rods (2702). The limiting posts (2703) and the arc-shaped expansion block (28) are fixedly connected. The sliding disc (2701) and the mounting bracket (25) are slidably connected. Several sliding grooves (2601) are provided on the cross plate (26). The sliding grooves (2601) and the limiting posts (2703) are slidably connected.

8. The gear ring machining device based on a planetary gear reducer according to claim 1, characterized in that: A cleaning tank (29) is fixedly connected to the pretreatment area (101). A cleaning component is installed in the pretreatment area (101). A transmission rod (31) is connected to the output end of the cleaning component. The transmission rod (31) is rotatably connected to the cleaning tank (29). The cleaning component is used to drive the transmission rod (31) to rotate. A grinding disc (32) is fixedly connected to the transmission rod (31). The grinding disc (32) is rotatably connected to the cleaning tank (29). Several ultrasonic generators (33) are fixedly connected in the cleaning tank (29). A wastewater tank (34) is fixedly connected in the frame (1). The wastewater tank (34) and the cleaning tank (29) are connected through a pipe.

9. A gear ring machining device based on a planetary gear reducer according to claim 8, characterized in that: The cleaning assembly includes a servo motor three (3001) fixedly connected in the pretreatment area (101), a spur gear one (3002) fixedly connected to the output end of the servo motor three (3001) via a shaft, and a spur gear two (3003) meshing with one side of the spur gear one (3002). The spur gear two (3003) is fixedly connected to the transmission rod (31), and the servo motor three (3001) is used to drive the spur gear one (3002) to rotate.

10. A gear ring machining device based on a planetary gear reducer according to claim 1, characterized in that: An electric push rod seven (35) is provided directly below the puller (15). The electric push rod seven (35) is fixedly connected to the frame (1). The output end of the electric push rod seven (35) is fixedly connected to the top head (36).

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