Milling device and method for machining planet gear

Abstract

The invention discloses a milling device and method for machining a planet wheel, relates to the technical field of milling machining, and solves the technical problems that in an existing technical scheme, a large amount of cooling liquid is lost ineffectively due to pouring and spraying heat dissipation, and the machining heat dissipation and lubrication effects are inconsistent in the actual milling process due to lateral spraying. Comprising a material platform structure, a milling lifting structure and a liquid spraying circulation structure, the material platform structure is installed in front of the milling lifting structure, and the material platform structure comprises a platform base and a clamping platform. The problem of out-of-tolerance caused by clamping eccentricity in the prior art is avoided, cooling liquid is accurately sprayed in the milling cutter head in a fog drop form, the problem of uneven cooling and lubrication caused by traditional lateral spraying is reduced, the cooling efficiency and uniformity are improved, and the quality problem of the machined surface caused by overheating is avoided.

Description

Technical Field

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

[0002] The invention relates to the technical field of the planetary gear mounting surface milling device, which effectively solves the problems of eccentric clamping tolerance and vibration deformation of thin-walled parts in traditional processing through a three-point synchronous centering clamping mechanism (bevel gear linkage three-threaded rod) and a four-axis linkage control system (X / Y / Z axis + 360° rotating axis). The innovatively designed atomizing cooling system precisely sprays droplets through the hollow milling shaft, making the coolant utilization rate higher. Combined with the inclined waste liquid plate circulation filtration, waste liquid discharge is reduced compared with traditional processes. The device integrates an intelligent servo control module to support the rapid changeover of planetary gears, significantly improving the single-piece processing efficiency, and providing a high-rigidity, low-energy integrated solution for the manufacture of precision planetary gear mounting surface transmission components.

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

[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 telescopic end of 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, and the output end of the liquid spray pipe is installed in the milling part. A mist shower head is installed at the output end of the liquid spray pipe. A hollow pipe is opened in the milling part, and the planetary gear mounting panel is assisted by the material platform structure and moved in the horizontal plane. The height of the milling cutter head is adjusted by the milling lifting structure, and the grinding fluid is sprayed outward from the milling cutter head through the liquid spray circulation structure to improve the cooling uniformity and improve the utilization rate of the coolant.

[0006] Preferably, the platform seat is a square frame, a pair of longitudinal screws are rotatably mounted on the platform seat, a pair of longitudinal threaded sleeves are fixedly mounted on the longitudinal sliding seat, the pair of longitudinal threaded sleeves are respectively threadedly connected to the pair of longitudinal screws, a linkage sprocket is fixedly mounted on one end of the pair of longitudinal screws, a pair of linkage sprockets are meshingly connected with a transmission chain, a longitudinal adjustment motor is fixedly mounted on the platform seat, a 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 to make 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 a transverse screw is fixedly connected to the driving end of the transverse adjustment motor. 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 rotational adjustment motor is fixedly installed on the transverse sliding seat, and the driving end of the rotational 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 rotational 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 the clamping platform is provided with three guide grooves, 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 opened on the clamping block, and the clamping block is threadedly connected with 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, which drives 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 cross beam, the spray pipe is fixedly installed on the upper wall of the upper bracket, a flexible hose is arranged in the spray pipe, a filter 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 filter plate and the liquid delivery pump are used for circulating filtration to improve the utilization efficiency of the coolant and cutting fluid and maintain the cleanliness of the machining process.

[0011] A milling method for machining a planetary gear mounting surface, firstly, placing a planetary gear mounting panel blank in the center of a clamping platform, starting a clamping motor, driving a driven bevel gear to rotate through the rotation of an active bevel gear, synchronously driving three threaded rods to rotate, and then driving three clamping blocks to move radially along a guide groove to complete centering clamping, adjusting the rotation of the clamping platform by a rotary adjustment motor, calibrating a machining reference direction, or adjusting the direction of the planetary gear mounting panel during the clamping process; then, driving a linkage sprocket and a transmission chain through a longitudinal adjustment motor to drive a longitudinal lead screw to rotate synchronously, so that a longitudinal sliding seat moves longitudinally along a platform seat through a longitudinal threaded sleeve, and then a transverse adjustment is performed. The whole motor drives the transverse screw to rotate, so that the transverse sliding seat moves laterally in the longitudinal sliding seat through the transverse threaded sleeve; then, the lifting hydraulic cylinder drives the crossbeam to rise and fall to adjust the height, 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 cutter head below to rotate to reach the working speed; at the same time, the liquid delivery pump transports the coolant and cutting fluid in the liquid storage tank through the spray pipe, forms a conical atomization spray through the end spray head, sprays in the rotating cylinder, sprays in the milling cutter 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 invention provides a milling device and method for processing planetary gears. The 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° rotating axis, can adjust the processing direction and position according to 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. The problem of machining surface quality; the design of inclined waste liquid tray and liquid storage tank circulation filtration greatly reduces the waste of coolant, improves the utilization rate of coolant, and ensures the cleanliness of the machining environment; the three-guide groove and synchronous clamping clamping block design can reliably fix the planetary gear installation blank to avoid vibration deformation of thin-walled parts during machining; reduce the ineffective loss of coolant, and significantly reduce industrial waste liquid emissions compared with traditional casting methods, which helps to meet the development trend of modern environmental protection technology; the processing 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 of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention provides a first stereoscopic structural schematic diagram of a milling device and method for machining planetary gears.

[0014] Figure 2The present invention provides a second stereoscopic structural schematic diagram of a milling device and method for machining planetary gears.

[0015] Figure 3 The present invention provides a schematic side structural view 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 The present invention provides a second top view schematic diagram of the cross-sectional structure of a milling device and method for machining planetary gears.

[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] Fig. 9 The 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 seat; 2, clamping platform; 3, longitudinal sliding seat; 4, transverse sliding seat; 5, fixed column; 6, lifting hydraulic cylinder; 7, crossbeam; 8, liquid spray pipe; 9, liquid storage tank; 10, waste liquid tray; 11, liquid delivery 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. Active bevel gear; 27. Driven bevel gear; 28. Reinforcement rib; 29. ​​Counterweight; 30. Outer sleeve; 31. Rotating cylinder; 32. Milling cutter head; 33. Active pulley; 34. Driven pulley; 35. Transmission belt; 36. Upper bracket; 37. Filter plate; 38. Support column; DETAILED DESCRIPTION

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

[0024] See also Figure 1-Figure 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, wherein the material platform structure is installed in front of the milling lifting structure, and 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, 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, the fixed column 5 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 at 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 installed on the lower wall of the fixed column 5, a waste liquid tray 10 is fixedly installed on the side wall of the liquid storage tank 9, and the waste liquid tray 10 is fixedly installed on the lower wall of the platform seat 1, a liquid feeding pump 11 is fixedly installed 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 installed in the milling part, and a mist shower head 12 is installed at the output end of the liquid spray pipe 8, a hollow pipe is opened in the milling part, the planetary gear mounting panel is assisted by the material platform structure, and it moves in the horizontal plane, the height of the milling head 32 is adjusted by the milling lifting structure, and the grinding fluid is sprayed outward from the milling head 32 through the liquid spray circulation structure to improve the cooling uniformity and the utilization rate of the coolant.

[0025] This embodiment is further configured as follows: the platform seat 1 is a square frame, a pair of longitudinal lead 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 lead screws 13, a pair of linkage sprockets 15 are fixedly mounted on one end of the pair of longitudinal lead screws 13, a pair of linkage sprockets 15 are meshingly 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 lead screws 13, and is driven by the linkage sprocket 15 and the linkage chain, so that the pair of longitudinal lead 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] The present embodiment is further configured as follows: the centering clamping part includes a clamping chassis 22, the clamping chassis 22 is fixedly installed above the driving end of the rotating 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 with the three threaded rods 24 through the threaded holes, a driven bevel gear 27 is fixedly installed at one end of the three threaded rods 24, a clamping motor 25 is fixedly installed in the clamping chassis 22, a driving bevel gear 26 is fixedly installed at the driving end of the clamping motor 25, the driving bevel gear 26 is meshed and connected with the three driven bevel gears 27, the driven bevel gear 27 is driven by the driving bevel gear 26, and the threaded rod 24 is driven to rotate so that the three clamping blocks 23 move synchronously, thereby reliably centering and clamping the planetary gear mounting panel.

[0028] The present embodiment is further configured as follows: a reinforcing rib 28 may be installed on the upper tube of the cross beam 7, a counterweight 29 is fixedly installed at one end of the cross beam 7, the milling portion includes a milling motor fixedly installed on the cross beam 7, an outer sleeve 30 is fixedly installed at one end of the cross beam 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, 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 cutter head 32 is driven to rotate through the belt transmission.

[0029] This embodiment is further configured as follows: an upper bracket 36 is fixedly installed on the upper wall of the cross beam 7, the spray pipe 8 is fixedly installed on the upper wall of the upper bracket 36, a flexible hose is provided in the spray pipe 8, a filtrate plate 37 is fixedly installed in the liquid storage tank 9, the lower wall of the waste liquid tray 10 is an inclined tray body, and a support column 38 is fixedly installed 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 central position 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, and synchronously center the planetary gear mounting panel to ensure stable clamping and accurate position. 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. Start the longitudinal adjustment motor 17, drive the linkage sprocket 15 and the transmission chain 16, 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, 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, drive the hydraulic rod to extend and retract by controlling the lifting hydraulic cylinder 6, drive the crossbeam 7 to rise and fall, adjust the height of the milling head 32 to a position that matches the processing thickness of the planetary gear mounting surface, and lay the foundation for subsequent processing accuracy; Start the milling motor, drive the active pulley 33 to rotate the driven pulley 34 through the transmission belt 35. The driven pulley 34 drives the rotating cylinder 31 to achieve high-speed rotation, and then drives the milling head 32 to run at high speed to reach the working speed. According to 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 that the milling head 32 can process all directions in the three directions of X / Y / Z. Combined with the 360° rotation function of the clamping platform 2, complex curved surfaces or standard plane processing are completed; 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 a conical atomized form. The coolant not only sprays the milling cutter head 32 to cool it down, but also lubricates and cools the planetary gear mounting surface in all directions during the machining process. The atomized spray design avoids the ineffective loss of coolant and significantly improves the cooling and lubrication effects. The waste liquid flows back to the liquid storage tank 9 through the inclined waste liquid tray 10. The filter plate 37 in the liquid storage tank 9 filters the waste liquid. After the impurities are removed, the coolant can be re-extracted by the liquid delivery pump 11 to achieve recycling. After the processing is completed, the processed planetary gear installation panel can be removed by adjusting the platform position and the hydraulic lifting structure. If other workpieces need to be processed, the planetary gear blank can be quickly switched and the above steps can be repeated without making too many changes to the clamping structure, which significantly improves the processing efficiency.

[0032] 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.

[0033] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments 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), and 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 mounted on the telescopic end thereof, a milling section 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 surface of the fixed column (5), a waste liquid tray (10) is fixedly mounted on the side wall surface of the liquid storage tank (9), the waste liquid tray (10) is fixedly mounted on the lower wall surface of the platform seat (1), a liquid delivery pump (11) is fixedly mounted in the liquid storage tank (9), the output end of the liquid delivery 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 section, a mist shower head (12) is mounted on the output end of the liquid spray pipe (8), and a hollow pipe is provided in the milling section.

2. A milling device for machining planetary gears according to claim 1, characterized in that: The platform seat (1) is a square frame. A pair of longitudinal lead 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 lead screws (13). A linkage sprocket (15) is fixedly mounted on one end of the pair of longitudinal lead screws (13). 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). The driving end of the longitudinal adjustment motor (17) is fixedly connected to one end of the pair of longitudinal lead screws (13).

3. A milling device for machining planetary gears according to claim 2, characterized in that: 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 below the centering clamping portion.

4. A milling device for machining planetary gears according to claim 3, characterized in that: The centering clamping part comprises a clamping chassis (22), wherein the clamping chassis (22) is fixedly mounted above the driving end of the rotating adjustment motor (21), and the clamping chassis (22) is fixedly mounted in the clamping platform (2). The clamping platform (2) is provided with three guide grooves, and a clamping block (23) is slidably mounted in the three guide grooves. Three threaded rods (24) are rotatably mounted in the clamping platform (2), and 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. A driven bevel gear (27) is fixedly mounted at one end of the three threaded rods (24). A clamping motor (25) is fixedly mounted in the clamping chassis (22), and a driving bevel gear (26) is fixedly mounted on the driving end of the clamping motor (25). The driving bevel gear (26) is meshedly connected with the three driven bevel gears (27).

5. A milling device for machining planetary gears according to claim 4, characterized in that: The upper tube of the cross beam (7) can be installed with a reinforcing rib (28), a counterweight (29) is fixedly installed at one end of the cross beam (7), the milling part comprises a milling motor fixedly installed on the cross beam (7), an outer sleeve (30) is fixedly installed at one end of the cross beam (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, 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).

6. A milling device for machining planetary gears according to claim 5, characterized in that: An upper bracket (36) is fixedly mounted on the upper wall of the cross beam (7), the liquid spray pipe (8) is fixedly mounted on the upper wall of the upper bracket (36), a flexible hose is arranged in the liquid spray pipe (8), a filtrate plate (37) is fixedly mounted in the liquid storage tank (9), and a support column (38) is fixedly mounted on the lower wall of the waste liquid tray (10).

7. A milling device for machining planetary gears according to claim 6, characterized in that: The lower wall of the waste liquid tray (10) is an inclined tray body.

8. A milling method for machining a planetary gear mounting surface, which is applied to a milling device for machining a planetary gear as claimed in claim 6, 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 active bevel gear (26) is rotated to drive the driven bevel gear (27) to rotate, and the three threaded rods (24) are synchronously driven to rotate, 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) to calibrate the processing reference direction, or adjust the direction of the planetary gear mounting panel during the clamping process; then, the longitudinal adjustment motor (17) drives the linkage sprocket (15) and the transmission chain (16) to drive the longitudinal lead 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 lead 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 delivery pump (11) transports the coolant cutting fluid in the liquid storage tank (9) through the liquid spray pipe (8), forms a conical atomization 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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