Milling device and method for machining planetary gear

Abstract

The present invention discloses a milling device and method for processing planetary gears, which relate to the technical field of milling processing. It solves the technical problems in the existing technical solutions that the pouring spray heat dissipation causes a large amount of coolant to be lost ineffectively, and the side spraying causes inconsistent heat dissipation and lubrication effects in the actual milling process. The device includes a material platform structure, a milling lifting structure and a spray circulation structure. The material platform structure is installed in front of the milling lifting structure. The material platform structure includes a platform seat and a clamping platform. The present invention realizes the precise centering and clamping of the planetary gear mounting surface blank through a bevel gear-linked three-threaded rod structure, avoiding the problem of out-of-tolerance caused by eccentric clamping in traditional technology. The coolant is precisely sprayed in the milling cutter head in the form of droplets, reducing the problem of uneven cooling and lubrication caused by traditional side spraying, improving cooling efficiency and uniformity, and avoiding processing surface quality problems caused by overheating.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, and in particular to a milling device and method for processing planetary gears. Background Art

[0002] The existing technical solutions have the technical problems that the pouring spray heat dissipation causes a large amount of coolant to be lost ineffectively, and the side spraying leads to inconsistent heat dissipation and lubrication effects in the actual milling process. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention provides a milling device and method for processing planetary gears, which solves the technical problems in the existing technical solutions that the pouring spray heat dissipation causes a large amount of coolant to be lost ineffectively, and the side spraying leads to inconsistent heat dissipation and lubrication effects in the actual milling process.

[0004] This planetary gear mounting surface milling device utilizes a three-point synchronous centering clamping mechanism (bevel gears linked to three threaded rods) and a four-axis linkage control system (X / Y / Z axes + 360° rotation axis) to effectively address challenges encountered in traditional machining, such as eccentric clamping tolerances and vibration deformation of thin-walled parts. Its innovative mist cooling system precisely sprays droplets through a hollow milling spindle, increasing coolant utilization. Combined with an inclined waste liquid recirculation filter, this system reduces waste liquid emissions compared to traditional processes. The device integrates an intelligent servo control module, enabling rapid planetary gear changeovers and significantly improving single-piece machining efficiency. This provides a high-rigidity, low-energy, integrated solution for the manufacture of precision planetary gear mounting surface transmission components.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a milling device for processing planetary gears, including a material platform structure, a milling lifting structure and a liquid spray circulation structure, the material platform structure is installed in front of the milling lifting structure, the material platform structure includes a platform seat and a clamping platform, a longitudinal sliding seat is slidably installed on the platform seat, a transverse sliding seat is slidably installed on the longitudinal sliding seat, the clamping platform is rotatably installed on the transverse sliding seat, a centering clamping part is installed in the clamping platform, the milling lifting structure includes a fixed column, the fixed column is fixedly installed behind the platform seat, a lifting hydraulic cylinder is fixedly installed in the fixed column, a crossbeam is fixedly installed on the telescopic end of the lifting hydraulic cylinder, and the crossbeam is fixedly installed on the crossbeam A milling part is fixedly installed, and the liquid spray circulation structure includes a liquid spray pipe and a liquid storage tank. The liquid storage tank is fixedly installed on the lower wall of the fixed column, and a waste liquid tray is fixedly installed on the side wall of the liquid storage tank. The waste liquid tray is fixedly installed on the lower wall of the platform seat. A liquid feeding pump is fixedly installed in the liquid storage tank, and the output end of the liquid feeding pump is connected to the input end of the liquid spray pipe. The output end of the liquid spray pipe is installed in the milling part, and a mist shower head is installed at the output end of the liquid spray pipe. A hollow pipe is provided in the milling part, and the planetary gear mounting panel is assisted by the material platform structure and moves in the horizontal plane. The height of the milling head is adjusted by the milling lifting structure, and the grinding fluid is sprayed outward from the milling head through the liquid spray circulation structure to improve the cooling uniformity and improve the coolant utilization rate.

[0006] Preferably, the platform seat is a square frame, and a pair of longitudinal screws are rotatably mounted on the platform seat, and a pair of longitudinal threaded sleeves are fixedly mounted on the longitudinal sliding seat, and the pair of longitudinal threaded sleeves are respectively threadedly connected to a pair of longitudinal screws, and a pair of linkage sprockets are fixedly mounted on one end of the pair of longitudinal screws, and a pair of linkage sprockets are meshed and connected with a transmission chain, and a longitudinal adjustment motor is fixedly mounted on the platform seat, and the driving end of the longitudinal adjustment motor is fixedly connected to one end of the pair of longitudinal screws, and is driven by the linkage sprocket and the linkage chain, so that the pair of longitudinal screws rotate synchronously, so that the longitudinal sliding seat slides longitudinally in the platform seat.

[0007] Preferably, a transverse adjustment motor is fixedly installed on the longitudinal sliding seat, and the driving end of the transverse adjustment motor is fixedly connected to a transverse screw. A transverse threaded sleeve is fixedly installed on the transverse sliding seat, and the transverse threaded sleeve is threadedly connected to the transverse screw. A rotation adjustment motor is fixedly installed on the transverse sliding seat, and the driving end of the rotation adjustment motor is fixedly connected to the bottom of the centering clamping part. The transverse screw is driven by the transverse adjustment motor to make the transverse sliding seat slide in the longitudinal sliding seat, and the specific processing direction of the clamped material is adjusted by the rotation adjustment motor.

[0008] Preferably, the centering clamping part includes a clamping chassis, which is fixedly installed above the driving end of the rotation adjustment motor, and the clamping chassis is fixedly installed in the clamping platform, and three guide grooves are provided on the clamping platform, and a clamping block is slidably installed in the three guide grooves, and three threaded rods are rotatably installed in the clamping platform, and threaded holes are provided on the clamping block, and the clamping block is threadedly connected to the three threaded rods through the threaded holes, and one end of the three threaded rods is fixedly installed with a driven bevel gear, and the clamping motor is fixedly installed in the clamping chassis, and the driving end of the clamping motor is fixedly installed, and the driving bevel gear is meshed with the three driven bevel gears, and the driven bevel gear is driven by the driving bevel gear to drive the threaded rod to rotate so that the three clamping blocks move synchronously, thereby reliably centering and clamping the planetary gear mounting panel.

[0009] Preferably, the upper tube of the crossbeam can be installed with reinforcing ribs, a counterweight block is fixedly installed at one end of the crossbeam, the milling part includes a milling motor fixedly installed on the crossbeam, an outer sleeve is fixedly installed at one end of the crossbeam, a rotating cylinder is rotatably installed in the outer sleeve, a milling cutter head is fixedly installed at the lower end of the rotating cylinder, a driving pulley is fixedly installed at the driving end of the milling motor, a driven pulley is fixedly installed at the upper end of the rotating cylinder, a transmission belt is connected to the driving pulley and the driven pulley, and the milling cutter head is driven to rotate through the belt transmission.

[0010] Preferably, an upper bracket is fixedly installed on the upper wall of the beam, the spray pipe is fixedly installed on the upper wall of the upper bracket, a flexible hose is provided in the spray pipe, a filtrate plate is fixedly installed in the liquid storage tank, the lower wall of the waste liquid tray is an inclined tray body, and a support column is fixedly installed on the lower wall of the waste liquid tray. The filtrate plate and the liquid delivery pump are used for circulation filtration to improve the utilization efficiency of the coolant and cutting fluid and maintain the cleanliness of the processing process.

[0011] A milling method for machining a planetary gear mounting surface: first, a planetary gear mounting panel blank is placed in the center of a clamping platform, the clamping motor is started, the active bevel gear rotates to drive the driven bevel gear to rotate, and the three threaded rods are synchronously driven to rotate, and then the three clamping blocks are driven to move radially along the guide groove to complete the centering clamping, and the rotation of the clamping platform is adjusted by the rotary adjustment motor to calibrate the machining reference direction, or adjust the direction of the planetary gear mounting panel during the clamping process; then, the longitudinal adjustment motor drives the linkage sprocket and the transmission chain to drive the longitudinal lead screw to rotate synchronously, so that the longitudinal sliding seat moves along the longitudinal direction of the platform seat through the longitudinal threaded sleeve, and then the transverse adjustment is carried out. The whole motor drives the transverse screw to rotate, so that the transverse sliding seat moves transversely in the longitudinal sliding seat through the transverse threaded sleeve; then, the height is adjusted by driving the crossbeam up and down through the lifting hydraulic cylinder, and the milling motor drives the transmission belt through the active pulley to rotate the driven pulley, thereby driving the rotating cylinder to rotate, and driving the milling head below to rotate to reach the working speed; at the same time, the liquid feeding pump transports the coolant and cutting fluid in the liquid storage tank through the spray pipe, and forms a conical atomized spray through the end spray head, sprays in the rotating cylinder, sprays in the milling head, and lubricates and sprays the planetary gear mounting surface blank, and the waste liquid is returned to the liquid storage tank through the waste liquid tray for filtration and reuse.

[0012] Beneficial effects: The present invention provides a milling device and method for processing planetary gears. The present invention realizes the precise centering clamping of the planetary gear mounting surface blank through the bevel gear linkage three-thread rod structure, avoiding the problem of out-of-tolerance caused by eccentric clamping in traditional technology; supports the linkage operation of X / Y / Z axis and 360° rotation axis, can adjust the processing direction and position according to the processing requirements, and is suitable for complex contours and multi-faceted processing requirements; the coolant is accurately sprayed in the milling cutter head in the form of droplets, reducing the problem of uneven cooling and lubrication caused by traditional side spraying, improving cooling efficiency and uniformity, and avoiding the problem caused by overheating Processing surface quality issues; the design of the inclined waste liquid tray and liquid storage tank circulation filtration greatly reduces the waste of coolant, improves the coolant utilization rate, and ensures the cleanliness of the processing environment; the three-guide groove and synchronous clamping clamping block design can reliably fix the planetary gear installation blank, avoiding the vibration deformation problem of thin-walled parts during processing; reducing the ineffective loss of coolant, compared with the traditional casting method, significantly reduces the discharge of industrial waste liquid, which helps to meet the development trend of modern environmental protection technology; the planetary gear model can be quickly switched without frequent adjustment of the fixture structure, which significantly improves the single-piece processing efficiency and is suitable for the flexibility requirements of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a first stereoscopic structural schematic diagram of a milling device and method for machining planetary gears created by the present invention.

[0014] Figure 2This is a second stereoscopic structural schematic diagram of the milling device and method for processing planetary gears created by the present invention.

[0015] Figure 3 The present invention provides a schematic side structural diagram of a milling device and method for machining planetary gears.

[0016] Figure 4 The present invention provides a schematic side cross-sectional structural diagram of a milling device and method for machining planetary gears.

[0017] Figure 5 The present invention provides a schematic diagram of the main cross-sectional structure of a milling device and method for machining planetary gears.

[0018] Figure 6 The present invention provides a first top-view cross-sectional structural schematic diagram of a milling device and method for machining planetary gears.

[0019] Figure 7 This is a second top-view cross-sectional structural schematic diagram of the milling device and method for processing planetary gears created by the present invention.

[0020] Figure 8 The third top-view cross-sectional structural schematic diagram of the milling device and method for machining planetary gears created by the present invention.

[0021] Figure 9 This is a fourth top-view cross-sectional structural schematic diagram of the milling device and method for machining planetary gears created by the present invention.

[0022] In the figure: 1. Platform base; 2. Clamping platform; 3. Longitudinal sliding base; 4. Transverse sliding base; 5. Fixed column; 6. Lifting hydraulic cylinder; 7. Crossbeam; 8. Liquid spray pipe; 9. Liquid storage tank; 10. Waste liquid tray; 11. Liquid feeding pump; 12. Mist shower head; 13. Longitudinal screw; 14. Longitudinal threaded sleeve; 15. Linkage sprocket; 16. Transmission chain; 17. Longitudinal adjustment motor; 18. Transverse adjustment motor; 19. Transverse screw; 20. Horizontal threaded sleeve; 21. Rotary adjustment motor; 22. Clamping chassis; 23. Clamping block; 24. Threaded rod; 25. Clamping motor; 26. Driving bevel gear; 27. Driven bevel gear; 28. Reinforcement rib; 29. ​​Counterweight; 30. Outer sleeve; 31. Rotating cylinder; 32. Milling cutter head; 33. Driving pulley; 34. Driven pulley; 35. Transmission belt; 36. Upper bracket; 37. Filtrate plate; 38. Support column; DETAILED DESCRIPTION

[0023] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The detailed description is as follows.

[0024] See also Figures 1-9 The present invention provides a technical solution: a milling device for processing planetary gears, including a material platform structure, a milling lifting structure and a liquid spray circulation structure. The material platform structure is installed in front of the milling lifting structure. The material platform structure includes a platform seat 1 and a clamping platform 2. A longitudinal sliding seat 3 is slidably installed on the platform seat 1, and a transverse sliding seat 4 is slidably installed on the longitudinal sliding seat 3. The clamping platform 2 is rotatably installed on the transverse sliding seat 4. A centering clamping part is installed in the clamping platform 2. The milling lifting structure includes a fixed column 5, which is fixedly installed behind the platform seat 1. A lifting hydraulic cylinder 6 is fixedly installed in the fixed column 5. A crossbeam 7 is fixedly installed on the telescopic end of the lifting hydraulic cylinder 6, and a milling part is fixedly installed on the crossbeam 7. The liquid spray circulation structure includes a liquid spray pipe 8 and a liquid storage tank 9. The liquid storage tank 9 is fixedly mounted on the lower wall of the fixed column 5. A waste liquid tray 10 is fixedly mounted on the side wall of the liquid storage tank 9. The waste liquid tray 10 is fixedly mounted on the lower wall of the platform seat 1. A liquid feeding pump 11 is fixedly mounted in the liquid storage tank 9. The output end of the liquid feeding pump 11 is connected to the input end of the liquid spray pipe 8. The output end of the liquid spray pipe 8 is mounted in the milling part. A mist shower head 12 is mounted on the output end of the liquid spray pipe 8. A hollow pipe is provided in the milling part. The planetary gear mounting panel is assisted by the material platform structure and moves in the horizontal plane. The height of the milling head 32 is adjusted by the milling lifting structure. The grinding fluid is sprayed outward from the milling head 32 through the liquid spray circulation structure to improve the cooling uniformity and the coolant utilization rate.

[0025] This embodiment is further configured as follows: the platform seat 1 is a square frame, a pair of longitudinal screws 13 are rotatably mounted on the platform seat 1, a pair of longitudinal threaded sleeves 14 are fixedly mounted on the longitudinal sliding seat 3, the pair of longitudinal threaded sleeves 14 are respectively threadedly connected to the pair of longitudinal screws 13, a pair of the longitudinal screws 13 are fixedly mounted with a linkage sprocket 15 at one end, a pair of the linkage sprockets 15 are meshedly connected with a transmission chain 16, a longitudinal adjustment motor 17 is fixedly mounted on the platform seat 1, a driving end of the longitudinal adjustment motor 17 is fixedly connected to one end of the pair of longitudinal screws 13, and is driven by the linkage sprocket 15 and the linkage chain, so that the pair of longitudinal screws 13 rotate synchronously, so that the longitudinal sliding seat 3 slides longitudinally in the platform seat 1.

[0026] This embodiment is further configured as follows: a transverse adjustment motor 18 is fixedly installed on the longitudinal sliding seat 3, and a transverse screw 19 is fixedly connected to the driving end of the transverse adjustment motor 18; a transverse threaded sleeve 20 is fixedly installed on the transverse sliding seat 4, and the transverse threaded sleeve 20 is threadedly connected to the transverse screw 19; a rotation adjustment motor 21 is fixedly installed on the transverse sliding seat 4, and the driving end of the rotation adjustment motor 21 is fixedly connected to the bottom of the centering clamping part, and the transverse screw 19 is driven by the transverse adjustment motor 18 to make the transverse sliding seat 4 slide in the longitudinal sliding seat 3, and the specific processing direction of the clamped material is adjusted by the rotation adjustment motor 21.

[0027] This embodiment is further configured as follows: the centering clamping part includes a clamping chassis 22, the clamping chassis 22 is fixedly mounted above the driving end of the rotation adjustment motor 21, the clamping chassis 22 is fixedly mounted in the clamping platform 2, three guide grooves are provided on the clamping platform 2, and a clamping block 23 is slidably mounted in the three guide grooves, and three threaded rods 24 are rotatably mounted in the clamping platform 2, and threaded holes are provided on the clamping block 23, and the clamping block 23 is threadedly connected with the three threaded rods 24 through the threaded holes, and one end of the three threaded rods 24 is fixedly mounted with a driven bevel gear 27, and a clamping motor 25 is fixedly mounted in the clamping chassis 22, and an active bevel gear 26 is fixedly mounted on the driving end of the clamping motor 25, and the active bevel gear 26 is meshed with the three driven bevel gears 27, and the driven bevel gear 27 is driven by the active bevel gear 26, which drives the threaded rod 24 to rotate so that the three clamping blocks 23 move synchronously, thereby reliably centering and clamping the planetary gear mounting panel.

[0028] This embodiment is further configured as follows: the upper tube of the crossbeam 7 can be installed with a reinforcing rib 28, a counterweight 29 is fixedly installed at one end of the crossbeam 7, the milling part includes a milling motor fixedly installed on the crossbeam 7, an outer sleeve 30 is fixedly installed at one end of the crossbeam 7, a rotating cylinder 31 is rotatably installed in the outer sleeve 30, a milling head 32 is fixedly installed at the lower end of the rotating cylinder 31, a driving pulley 33 is fixedly installed at the driving end of the milling motor, a driven pulley 34 is fixedly installed at the upper end of the rotating cylinder 31, a transmission belt 35 is connected to the driving pulley 33 and the driven pulley 34, and the milling head 32 is driven to rotate through the belt transmission.

[0029] This embodiment is further configured such that an upper bracket 36 is fixedly mounted on the upper wall of the crossbeam 7, the liquid spray pipe 8 is fixedly mounted on the upper wall of the upper bracket 36, a flexible hose is provided in the liquid spray pipe 8, a filtrate plate 37 is fixedly mounted in the liquid storage tank 9, the lower wall of the waste liquid tray 10 is an inclined tray, and a support column 38 is fixedly mounted on the lower wall of the waste liquid tray 10. The filtrate plate 37 and the liquid delivery pump 11 are circulated and filtered to improve the utilization efficiency of the coolant and cutting fluid and maintain the cleanliness of the machining process.

[0030] The detailed connection means are well known in the art; Figure 1-9 As shown, place the blank: place the planetary gear mounting panel blank to be processed in the center of the clamping platform 2 so that it is roughly centered.

[0031] Start the clamping motor 25 to drive the active bevel gear 26. The active bevel gear 26 drives the three driven bevel gears 27 to rotate synchronously, thereby driving the three threaded rods 24 to rotate together. The threaded rods 24 drive the clamping block 23 to move radially along the guide groove, synchronously centering and clamping the planetary gear mounting panel to ensure stable clamping and accurate positioning.

[0032] If the machining reference needs to be adjusted, the centering clamping structure can be rotated by rotating the adjustment motor 21 to ensure that the upper end of the clamping platform 2 is adjusted to the ideal machining direction angle. During the clamping process, the specific direction of the planetary gear mounting surface blank can also be further adjusted according to actual needs.

[0033] Start the longitudinal adjustment motor 17, drive the linkage sprocket 15 and the transmission chain 16, and drive the longitudinal lead screw 13 to rotate synchronously. The rotation of the lead screw drives the longitudinal sliding seat 3 to move accurately to the set position along the longitudinal direction of the platform seat 1 through the longitudinal threaded sleeve 14. Start the transverse adjustment motor 18, and drive the transverse sliding seat 4 to operate through the rotation of the transverse lead screw 19. The transverse sliding seat 4 moves accurately to the set position in the transverse direction relative to the longitudinal sliding seat 3 through the transverse threaded sleeve 20. By operating the lifting hydraulic cylinder 6 to drive the hydraulic rod to extend and retract, the crossbeam 7 is driven to rise and fall, and the height of the milling head 32 is adjusted to a position that matches the processing thickness of the planetary gear mounting surface, laying the foundation for subsequent processing accuracy;

[0034] The milling motor is started, driving the active pulley 33 to rotate the driven pulley 34 via the transmission belt 35. The driven pulley 34 drives the rotating drum 31 to achieve high-speed rotation, which in turn drives the milling head 32 to operate at high speed to reach the operating speed. Based on the pre-adjusted position and the set milling cutter height, the milling head 32 cuts the planetary gear mounting surface blank. The four-axis linkage system ensures full-range processing in the X / Y / Z directions. Combined with the 360-degree rotation function of the clamping platform 2, it can complete the processing of complex curved surfaces or standard flat surfaces.

[0035] The liquid delivery pump 11 is started to deliver the coolant (or cutting fluid) in the liquid storage tank 9 through the liquid spray pipe 8. The spray head at the end of the liquid spray pipe 8 sprays the coolant into the rotating cylinder 31 in the form of a conical atomization. The coolant not only cools the milling cutter head 32 but also lubricates and cools the planetary gear mounting surface in all directions during the machining process. The atomization spray design avoids ineffective loss of coolant and significantly improves the cooling and lubrication effects.

[0036] Waste liquid flows back to the liquid storage tank 9 through the inclined waste liquid tray 10. The filter plate 37 inside the liquid storage tank 9 filters the waste liquid. After impurities are removed, the coolant can be re-pumped by the liquid pump 11 for recycling. After processing is completed, the finished planetary gear mounting panel can be removed by adjusting the platform position and the hydraulic lifting structure. If another workpiece needs to be processed, the planetary gear blank can be quickly switched and the above steps can be repeated. This eliminates the need for excessive changes to the clamping structure, significantly improving processing efficiency.

[0037] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0038] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A milling device for machining planetary gears, characterized in that: The invention comprises a material platform structure, a milling lifting structure and a liquid spraying circulation structure, wherein the material platform structure is installed in front of the milling lifting structure, the material platform structure comprises a platform seat (1) and a clamping platform (2), a longitudinal sliding seat (3) is slidably installed on the platform seat (1), a transverse sliding seat (4) is slidably installed on the longitudinal sliding seat (3), the clamping platform (2) is rotatably installed on the transverse sliding seat (4), a centering clamping part is installed in the clamping platform (2), the milling lifting structure comprises a fixed column (5), the fixed column (5) is fixedly installed at the rear of the platform seat (1), a lifting hydraulic cylinder (6) is fixedly installed in the fixed column (5), and the lifting hydraulic cylinder (6) is fixedly installed in the fixed column (5). ) The telescopic end is fixedly mounted with a crossbeam (7), a milling part is fixedly mounted on the crossbeam (7), the liquid spray circulation structure comprises a liquid spray pipe (8) and a liquid storage tank (9), the liquid storage tank (9) is fixedly mounted on the lower wall of the fixed column (5), a waste liquid tray (10) is fixedly mounted on the side wall of the liquid storage tank (9), the waste liquid tray (10) is fixedly mounted on the lower wall of the platform seat (1), a liquid feeding pump (11) is fixedly mounted in the liquid storage tank (9), the output end of the liquid feeding pump (11) is connected to the input end of the liquid spray pipe (8), the output end of the liquid spray pipe (8) is mounted in the milling part, a mist shower head (12) is mounted on the output end of the liquid spray pipe (8), and a hollow pipe is opened in the milling part; The platform seat (1) is a square frame, a pair of longitudinal screws (13) are rotatably mounted on the platform seat (1), a pair of longitudinal threaded sleeves (14) are fixedly mounted on the longitudinal sliding seat (3), the pair of longitudinal threaded sleeves (14) are respectively threadedly connected to the pair of longitudinal screws (13), one end of the pair of longitudinal screws (13) is fixedly mounted with a linkage sprocket (15), the pair of linkage sprockets (15) are meshedly connected with a transmission chain (16), a longitudinal adjustment motor (17) is fixedly mounted on the platform seat (1), and a driving end of the longitudinal adjustment motor (17) is fixedly connected to one end of the pair of longitudinal screws (13); A transverse adjustment motor (18) is fixedly mounted on the longitudinal sliding seat (3), and a driving end of the transverse adjustment motor (18) is fixedly connected to a transverse lead screw (19). A transverse threaded sleeve (20) is fixedly mounted on the transverse sliding seat (4), and the transverse threaded sleeve (20) is threadedly connected to the transverse lead screw (19). A rotation adjustment motor (21) is fixedly mounted on the transverse sliding seat (4), and a driving end of the rotation adjustment motor (21) is fixedly connected to the bottom of the centering clamping portion. The centering clamping part includes a clamping chassis (22), the clamping chassis (22) is fixedly installed above the driving end of the rotation adjustment motor (21), the clamping chassis (22) is fixedly installed in the clamping platform (2), three guide grooves are provided on the clamping platform (2), a clamping block (23) is slidably installed in the three guide grooves, three threaded rods (24) are rotatably installed in the clamping platform (2), a threaded hole is provided on the clamping block (23), the clamping block (23) is threadedly connected to the three threaded rods (24) through the threaded hole, one end of the three threaded rods (24) is fixedly installed with a driven bevel gear (27), a clamping motor (25) is fixedly installed in the clamping chassis (22), a driving bevel gear (26) is fixedly installed on the driving end of the clamping motor (25), and the driving bevel gear (26) is meshed with the three driven bevel gears (27); An upper bracket (36) is fixedly mounted on the upper wall of the crossbeam (7), the liquid spraying pipe (8) is fixedly mounted on the upper wall of the upper bracket (36), a flexible hose is provided in the liquid spraying pipe (8), a filtrate plate (37) is fixedly mounted in the liquid storage tank (9), a support column (38) is fixedly mounted on the lower wall of the waste liquid tray (10), and the lower wall of the waste liquid tray (10) is an inclined tray.

2. A milling device for machining planetary gears according to claim 1, characterized in that: The upper tube of the crossbeam (7) is installed with a reinforcing rib (28), and a counterweight (29) is fixedly installed at one end of the crossbeam (7). The milling part includes a milling motor fixedly installed on the crossbeam (7), an outer sleeve (30) is fixedly installed at one end of the crossbeam (7), a rotating cylinder (31) is rotatably installed in the outer sleeve (30), a milling cutter head (32) is fixedly installed at the lower end of the rotating cylinder (31), a driving pulley (33) is fixedly installed at the driving end of the milling motor, and a driven pulley (34) is fixedly installed at the upper end of the rotating cylinder (31), and a transmission belt (35) is connected to the driving pulley (33) and the driven pulley (34).

3. A milling method for machining a planetary gear mounting surface, which is applied to a milling device for machining a planetary gear according to claim 2, characterized in that: First, the planetary gear mounting panel blank is placed in the center of the clamping platform (2), and the clamping motor (25) is started. The driven bevel gear (27) is driven to rotate by the active bevel gear (26), and the three threaded rods (24) are driven to rotate synchronously, thereby driving the three clamping blocks (23) to move radially along the guide groove to complete the centering clamping. The rotation of the clamping platform (2) is adjusted by the rotation adjustment motor (21), and the processing reference direction is calibrated, or the direction of the planetary gear mounting panel is adjusted during the clamping process; then, the longitudinal adjustment motor (17) drives the linkage sprocket (15) and the transmission chain (16) to drive the longitudinal screw (13) to rotate synchronously, so that the longitudinal sliding seat (3) moves along the longitudinal direction of the platform seat (1) through the longitudinal threaded sleeve (14), and then the transverse adjustment motor (18) drives the transverse screw ( 19) rotates, so that the transverse sliding seat (4) moves transversely in the longitudinal sliding seat (3) through the transverse threaded sleeve (20); then, the lifting hydraulic cylinder (6) drives the crossbeam (7) to rise and fall to adjust the height, and the milling motor drives the transmission belt (35) through the active pulley (33), so that the driven pulley (34) rotates, and then drives the rotating cylinder (31) to rotate, and drives the milling cutter head (32) below to rotate to reach the working speed; at the same time, the liquid feeding pump (11) transports the coolant cutting fluid in the liquid storage tank (9) through the liquid spray pipe (8), forms a conical atomized spray through the end spray head, sprays in the rotating cylinder (31), sprays in the milling cutter head (32), and lubricates and sprays the planetary gear mounting surface blank, and the waste liquid returns to the liquid storage tank (9) through the waste liquid tray (10) for filtration and reuse.

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