Planetary cutting device for processing tungsten alloy plated and infiltrated and lining oil pipe

Abstract

The invention relates to the field of cutting equipment, and discloses a planetary cutting device for tungsten alloy plating and permeation and lining oil pipe machining, a base, a supporting mechanism, a cutting mechanism and a limiting mechanism, the cutting mechanism comprises a supporting frame, an outer ring, a cutting saw assembly and a clamping assembly, the supporting frame is vertically and fixedly installed on the base, and the outer ring is vertically and fixedly installed at the top end of the supporting frame; the cutting saw assembly and the clamping assembly are both arranged in the outer ring, the cutting saw assembly comprises a first clamping ring, three sets of cutting components and a deflection component, the clamping assembly comprises a second clamping ring, three sets of clamping components and a linkage component, a driving component is arranged at the top of the outer ring, and the driving component comprises a first motor, a first gear and two first gear rings. The problems that the cutting efficiency is low and stress is uneven are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cutting equipment, in particular to a planetary cutting device for processing tungsten alloy coated and infiltrated pipes and internally lined pipes. BACKGROUND

[0002] Tungsten alloy coated and infiltrated pipes generally have very high surface hardness and good wear resistance, but may have greater brittleness. To prevent edge collapse or micro-cracks, appropriate cutting speed and feed speed need to be used. Planetary pipe cutting machines generally have speed adjustment functions and are suitable for cutting tungsten alloy coated and infiltrated pipes. Planetary pipe cutting machines are special equipment for precise cutting of pipes. The name comes from the similarity between the movement trajectory of the cutting tool during cutting and the movement of planets. The basic principle is to adapt to the circular profile of the pipe by the circular movement of the cutting unit, thereby realizing ring cutting. Compared with the early simple single-direction cutting or sawing of abrasive wheel segments, traditional planetary pipe cutting machines have advantages in ensuring the roundness of the cut, reducing burrs, and being suitable for large-diameter pipes.

[0003] In existing planetary cutting machine technology, for example, the invention patent with the authorization announcement number CN103692468B discloses a large-diameter thick-wall PE pipe planetary chipless double-knife cutting machine, and the utility model patent with the authorization announcement number CN211030169U discloses a full-automatic planetary cutting machine special for organic glass pipes. There is a significant efficiency bottleneck problem in the above-mentioned solutions: during cutting, only the cutting mechanism performs complex planetary motion, while the pipe being cut remains stationary, which reduces cutting efficiency and makes the pipe unevenly stressed due to single cutting saw blade operation. SUMMARY

[0004] The present application aims to provide a planetary cutting device for processing tungsten alloy coated and infiltrated pipes and internally lined pipes to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A planetary cutting device for processing tungsten alloy coated and infiltrated pipes and internally lined pipes, comprising a base, a support mechanism, a cutting mechanism, and a limiting mechanism, the limiting mechanism, the cutting mechanism, and the support mechanism are all arranged on the upper side of the base; The cutting mechanism comprises a support frame, an outer ring, a cutting saw assembly, and a clamping assembly. The support frame is vertically fixedly installed on the base. The outer ring is vertically fixedly installed on the top end of the support frame. The cutting saw assembly and the clamping assembly are both arranged in the outer ring. The cutting saw assembly comprises a first clamping ring, three sets of dividing components, and a deflection component. The first clamping ring is rotatably embedded in the outer ring. The three sets of dividing components are evenly arranged in a ring shape in the inner circle of the first clamping ring and are connected through the deflection component. The clamping assembly includes a second retaining ring, three sets of clamping components, and a linkage component. The second retaining ring is rotatably embedded in the outer ring, and the three sets of clamping components are evenly arranged in a ring on the inner ring of the second retaining ring and are connected by the linkage component. The top of the outer ring is provided with a driving component, which includes a first motor, a first gear and two first gear rings. The first motor is vertically fixedly installed at the top of the outer ring, the first gear is fixedly sleeved on the end of the output shaft of the first motor, and the two first gear rings are respectively fixedly installed on the side of the first retaining ring and the second retaining ring that are close to each other, and both are meshed with the first gear.

[0006] As another feasible approach, the segmentation component includes a swing frame, a rotating shaft, and an electric saw device. The rotating shaft is horizontally rotatably fitted inside a first retaining ring. The outer end of the swing frame is fixedly fitted onto the rotating shaft. The electric saw device is fixedly installed on the inner end of the swing frame. The deflection component includes a second gear ring, three second gears, and a first telescopic cylinder. The three second gears are respectively fixedly fitted onto the outer sides of the three rotating shafts. The second gear ring is rotatably embedded on the outer side of the second retaining ring and meshes with the three second gears. Both ends of the first telescopic cylinder are hinged to the outer sides of the second gear ring and the second retaining ring respectively via pins.

[0007] As another feasible approach, the clamping component includes a locking block, a first screw, and a third gear. The locking block is slidably fitted inside the second retaining ring. The first screw is rotatably fitted inside the second retaining ring and threadedly engaged with the locking block. The third gear is fixedly fitted onto the outer end of the first screw. The linkage component includes a third gear ring, a fourth gear ring, a fourth gear, and a second motor. The third gear ring is rotatably embedded outside the second retaining ring and meshes with the three third gears. The second motor is fixedly fitted onto the outer side of the second retaining ring. The fourth gear ring is fixedly fitted into the inner ring outside the third gear ring. The fourth gear is fixedly fitted onto the end of the output shaft of the second motor and meshes with the fourth gear ring.

[0008] As another feasible approach, the support mechanism includes two sets of sliding components and a pushing component. The pushing component includes a support plate, two first guide rails, a third motor, a second screw, and a pusher. The support plate is horizontally fixed on the upper side of the base. The two first guide rails are horizontally and symmetrically fixed on the inner walls of both sides of the support plate. The pusher is vertically arranged, and its bottom ends are slidably embedded in the two first guide rails. The third motor is fixedly installed inside the support plate. The second screw is horizontally rotatably sleeved in the pusher, and its two ends are rotatably sleeved on the left side of the support plate. It is also fixedly connected to the output shaft end of the third motor via a coupling. The two sets of sliding components are symmetrically arranged on the upper side of the support plate. The sliding component includes multiple uprights, multiple second telescopic cylinders, a horizontal plate, multiple support rods, and multiple balls. The multiple uprights are all vertically fixed on the upper side of the support plate. The multiple second telescopic cylinders are respectively tilted and fixedly sleeved on the top of the multiple uprights. The horizontal plate is horizontally fixed on the top output end of the multiple second telescopic cylinders. The multiple support rods are all vertically fixed on the upper side of the horizontal plate. The multiple balls are respectively rotatably embedded in the top of the multiple support rods.

[0009] As another feasible approach, the limiting mechanism includes an adjusting assembly and a support assembly. The adjusting assembly includes a second guide rail, a third screw, a fourth motor, a clamp, a vertical plate, and a turntable. The second guide rail is horizontally fixed on the upper side of the base. The vertical plate is vertically set and its bottom side is horizontally slidably embedded in the second guide rail. The clamp is vertically fixed on the second guide rail. The fourth motor is fixedly installed on the second guide rail. One end of the third screw is fixedly connected to the output shaft end of the fourth motor through a coupling, and the other end is rotatably sleeved in the clamp. The bottom side of the vertical plate is threaded onto the third screw. The turntable is rotatably embedded in the side of the vertical plate near the outer ring. The support assembly is set inside the vertical plate.

[0010] As another feasible approach, the expansion assembly includes a slide rod, two third telescopic cylinders, a fourth telescopic cylinder, a push rod, and multiple sets of locking components. The slide rod is horizontally slidably fitted in the middle of the upright plate. The two third telescopic cylinders are both horizontally arranged and symmetrically positioned vertically. The two ends of the third telescopic cylinders are fixedly connected to the left side of the upright plate and the right side of the slide rod, respectively. The fourth telescopic cylinder is horizontally fixedly installed on the left end of the slide rod. The push rod is horizontally slidably fitted inside the slide rod, and its left end is fixedly connected to the output end of the fourth telescopic cylinder. Multiple sets of locking components are all horizontally arranged on the right end of the slide rod and are evenly distributed in a ring.

[0011] As another feasible method, the snap-fit ​​component includes two connecting rods, a bracket, two insert rods, and two rollers. The right end of the slide rod has multiple mounting slots. Both insert rods are fixedly inserted into the inner wall of the mounting slots. The middle parts of the two connecting rods are respectively rotatably sleeved on the two insert rods. The ends of the two connecting rods located in the mounting slots are hinged to the outside of the push rod through pins. The bracket is horizontally set and is hinged to the ends of the two connecting rods away from the push rod through two pins. Both rollers are horizontally rotatably installed in the bracket.

[0012] Compared with the prior art, the present invention provides a planetary cutting device for machining tungsten-plated alloys and inner-lined oil pipes, which has the following beneficial effects: (1) During the cutting process, the first retaining ring and the second retaining ring rotate synchronously in opposite directions, so that the first retaining ring drives the three sets of electric saw devices to rotate, and the second retaining ring drives the pipe to rotate through three retaining blocks, thereby realizing that the pipe and the electric saw devices rotate synchronously in opposite directions, thereby improving the cutting efficiency. (2) During cutting, the three sets of electric saw devices that are evenly distributed in a ring shape come into contact with the pipe synchronously, so that the pipe is subjected to uniform force; (3) During the cutting process, the limiting mechanism limits the position of the pipe, and the expansion component supports the inside of both sides of the pipe cutting point. The saw blade and the clamping block apply force from the outside, and the expansion component applies force from the inside to the outside. This can effectively prevent the pipe from being damaged by unidirectional force during the cutting process and has a protective effect on the pipe. Attached Figure Description

[0013] Figure 1This is a left-side perspective three-dimensional structural diagram of a planetary cutting device for processing tungsten-plated alloy and inner-lined oil pipes proposed in this invention. Figure 2 This is a right-side perspective three-dimensional structural diagram of a planetary cutting device for processing tungsten-plated alloy and inner-lined oil pipes proposed in this invention. Figure 3 This is a front view partial cross-sectional structural diagram of a planetary cutting device for processing tungsten-plated alloy and inner-lined oil pipes proposed in this invention. Figure 4 for Figure 1 Enlarged view of the structure at point A in the image; Figure 5 for Figure 2 Enlarged view of the structure at point B in the image; Figure 6 for Figure 3 Enlarged view of the structure at point C; Figure 7 for Figure 3 Enlarged view of the structure at point D in the image.

[0014] In the diagram: 1. Base; 2. Support frame; 3. Outer ring; 4. First retaining ring; 5. Second retaining ring; 6. First motor; 7. First gear; 8. First gear ring; 9. Swing frame; 10. Rotating shaft; 11. Electric saw device; 12. Second gear ring; 13. Second gear; 14. First telescopic cylinder; 15. Locking block; 16. First screw; 17. Third gear; 18. Third gear ring; 19. Fourth gear ring; 20. Fourth gear; 21. Second motor; 22. Support plate; 23. First 24. Guide rail; 25. Third motor; 26. Second screw; 27. Push frame; 28. Upright frame; 29. ​​Second telescopic cylinder; 30. Horizontal plate; 31. Support rod; 32. Ball bearing; 33. Second guide rail; 34. Third screw; 35. Fourth motor; 36. Card holder; 37. Upright plate; 38. Turntable; 39. Slide rod; 40. Installation slot; 41. Third telescopic cylinder; 42. Fourth telescopic cylinder; 43. Push rod; 44. Connecting rod; 45. Insert bracket; 46. Insert rod; 47. Roller. Detailed Implementation

[0015] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the invention.

[0016] See Figures 1-7 A planetary cutting device for processing tungsten-plated alloy and inner-lined oil pipes includes a base 1, a support mechanism, a cutting mechanism and a limiting mechanism. The limiting mechanism, the cutting mechanism and the support mechanism are all arranged on the upper side of the base 1 and are arranged from left to right. The cutting mechanism includes a support frame 2, an outer ring 3, a saw assembly, and a clamping assembly. The support frame 2 is vertically fixed on the base 1, and the outer ring 3 is vertically fixed on the top of the support frame 2. The saw assembly and the clamping assembly are both located inside the outer ring 3. The cutting saw assembly includes a first retaining ring 4, three sets of dividing components and a deflection component. The first retaining ring 4 is rotatably embedded in the outer ring 3. The three sets of dividing components are evenly arranged in a ring inside the first retaining ring 4 and are connected by the deflection component. The clamping assembly includes a second retaining ring 5, three sets of clamping components and a linkage component. The second retaining ring 5 is rotatably embedded in the outer ring 3. The three sets of clamping components are evenly arranged in a ring in the inner circle of the second retaining ring 5 and are connected by the linkage component. The top of the outer ring 3 is provided with a driving component, which drives the first retaining ring 4 and the second retaining ring 5 to rotate synchronously in opposite directions. The driving component includes a first motor 6, a first gear 7 and two first gear rings 8. The first motor 6 is vertically fixedly installed at the top of the outer ring 3. The first gear 7 is fixedly sleeved on the end of the output shaft of the first motor 6. The two first gear rings 8 are respectively fixedly installed on the side of the first retaining ring 4 and the second retaining ring 5 that are close to each other, and both are meshed with the first gear 7.

[0017] Each electrical device is powered by an external power source, and the entire device is controlled by a control terminal. Since the control terminal is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0018] The dividing component includes a swing frame 9, a rotating shaft 10, and an electric saw device 11. The rotating shaft 10 is horizontally rotatably sleeved in the first retaining ring 4. The outer end of the swing frame 9 is fixedly sleeved on the rotating shaft 10. The electric saw device 11 is fixedly installed on the inner end of the swing frame 9. The deflection component includes a second gear ring 12, three second gears 13, and a first telescopic cylinder 14. The three second gears 13 are respectively fixedly sleeved on the outer side of the three rotating shafts 10. The second gear ring 12 is rotatably embedded on the outer side of the second retaining ring 5 and meshes with the three second gears 13. Both ends of the first telescopic cylinder 14 are hinged to the outer side of the second gear ring 12 and the outer side of the second retaining ring 5 respectively through pins.

[0019] The clamping components include a locking block 15, a first screw 16, and a third gear 17. The locking block 15 is slidably sleeved on the inner ring of the second retaining ring 5. The first screw 16 is rotatably sleeved on the second retaining ring 5 and threadedly connected to the locking block 15. The third gear 17 is fixedly sleeved on the outer end of the first screw 16. The linkage components include a third gear ring 18, a fourth gear ring 19, a fourth gear 20, and a second motor 21. The third gear ring 18 is rotatably embedded on the outer side of the second retaining ring 5 and meshes with the three third gears 17. The second motor 21 is fixedly sleeved on the outer side of the second retaining ring 5. The fourth gear ring 19 is fixedly sleeved on the inner ring of the outer side of the third gear ring 18. The fourth gear 20 is fixedly sleeved on the end of the output shaft of the second motor 21 and meshes with the fourth gear ring 19.

[0020] The support mechanism includes two sets of sliding components and a pushing component. The pushing component includes a support plate 22, two first guide rails 23, a third motor 24, a second screw 25, and a pusher 26. The support plate 22 is horizontally fixedly installed on the upper side of the base 1. The two first guide rails 23 are horizontally and symmetrically fixedly installed on the inner walls of both sides of the support plate 22. The pusher 26 is vertically arranged, and its bottom ends are slidably embedded in the two first guide rails 23 respectively. The third motor 24 is fixedly installed inside the support plate 22. The second screw 25 is horizontally screwed and rotatably sleeved in the pusher 26, and its two ends are rotatably sleeved on the left side of the support plate 22 and connected by a coupling. The three motors are fixedly connected to the output shaft end of the third motor 24. Two sets of sliding components are symmetrically arranged on the upper side of the support plate 22. The sliding components include multiple uprights 27, multiple second telescopic cylinders 28, a horizontal plate 29, multiple support rods 30 and multiple balls 31. Multiple uprights 27 are vertically fixedly installed on the upper side of the support plate 22. Multiple second telescopic cylinders 28 are respectively inclinedly fixedly sleeved on the top of multiple uprights 27. The horizontal plate 29 is horizontally fixedly installed on the top output end of multiple second telescopic cylinders 28. Multiple support rods 30 are vertically fixedly installed on the upper side of the horizontal plate 29. Multiple balls 31 are respectively rolled and embedded on the top of multiple support rods 30.

[0021] The limiting mechanism includes an adjusting component and a supporting component. The adjusting component includes a second guide rail 32, a third screw 33, a fourth motor 34, a bracket 35, a vertical plate 36, and a turntable 37. The second guide rail 32 is horizontally fixedly installed on the upper side of the base 1. The vertical plate 36 is vertically set and its bottom side is horizontally slidably embedded in the second guide rail 32. The bracket 35 is vertically fixedly installed on the second guide rail 32. The fourth motor 34 is fixedly installed on the second guide rail 32. One end of the third screw 33 is fixedly connected to the output shaft end of the fourth motor 34 through a coupling, and the other end is rotatably sleeved in the bracket 35. The bottom side of the vertical plate 36 is threaded onto the third screw 33. The turntable 37 is rotatably embedded in the side of the vertical plate 36 near the outer ring 3. The supporting component is set in the vertical plate 36.

[0022] The expansion assembly includes a slide rod 38, two third telescopic cylinders 39, a fourth telescopic cylinder 40, a push rod 41, and multiple sets of locking components. The slide rod 38 is horizontally slidably fitted in the middle of the upright plate 36. The two third telescopic cylinders 39 are both horizontally arranged and symmetrically positioned vertically. The two ends of the third telescopic cylinders 39 are fixedly connected to the left side of the upright plate 36 and the right side of the slide rod 38, respectively. The fourth telescopic cylinder 40 is horizontally fixedly installed on the left end of the slide rod 38. The push rod 41 is horizontally slidably fitted inside the slide rod 38, and its left end is fixedly connected to the output end of the fourth telescopic cylinder 40. Multiple sets of locking components are all horizontally arranged on the right end of the slide rod 38 and are evenly distributed in a ring.

[0023] The insert component includes two connecting rods 42, a bracket 43, two insert rods 44, and two rollers 45. The right end of the slide rod 38 has multiple mounting slots 381. The two insert rods 44 are fixedly inserted into the inner wall of the mounting slots 381. The middle parts of the two connecting rods 42 are respectively rotatably sleeved on the two insert rods 44. The ends of the two connecting rods 42 located in the mounting slots 381 are hinged to the outside of the push rod 41 through pins. The bracket 43 is horizontally set and is hinged to the ends of the two connecting rods 42 away from the push rod 41 through two pins. The two rollers 45 are horizontally rotatably installed in the bracket 43.

[0024] When cutting tungsten-plated alloy pipes, first adjust the limiting mechanism to control the cutting length of the pipe. Then, start the fourth motor 34, drive the third screw 33 to rotate, drive the vertical plate 36 to move, and drive the turntable 37 to move. Adjust the distance between the right side of the turntable 37 and the saw blade of the electric saw device 11. This distance is the cutting length. Then, stop the fourth motor 34.

[0025] After the limiting mechanism is adjusted, the pipe is placed on the support mechanism. Then, the second telescopic cylinder 28 is operated by the terminal control to adjust the position of the horizontal plate 29 so that the center of the pipe is aligned with the center of the outer ring 3. The third motor 24 is started. The third motor 24 causes the second screw 25 to push the pusher 26 to move. The pusher 26 pushes the pipe. With the support of multiple balls 31, the pipe is pushed to contact the right end face of the turntable 37. Then the second motor 21 is started. Through the meshing of the fourth gear 20 and the fourth gear ring 19, the third gear ring 18 is driven to rotate. The third gear ring 18 drives the third gear 17 that meshes with it to rotate. The third gear 17 drives the first screw 16 to rotate, thereby driving the clamping block 15 to move. The three clamping blocks 15 move closer to each other to clamp the pipe.

[0026] After the clamping block 15 clamps the pipe, the third motor 24 reverses and drives the pusher 26 to disengage from the end of the pipe to avoid wear during rotation.

[0027] The two third telescopic cylinders 39 shorten, causing the slide rod 38 to move, so that the multiple sets of locking components are aligned with the cutting point, that is, the saw blade of the electric saw device 11 is located between the two rollers 45 on the insert 43. Then the fourth telescopic cylinder 40 extends, pushing the push rod 41 to slide. The push rod 41 drives the connecting rod 42 to deflect in the vertical direction through the pin shaft, pushing the insert 43 out of the mounting slot 381. Finally, the two rollers 45 contact the inner wall of the pipe, supporting the pipe.

[0028] Subsequently, the cutting operation is carried out. During the cutting, the first motor 6 starts, which drives the two first gear rings 8 to rotate synchronously in opposite directions through the first gear 7. At the same time, the three electric saw devices 11 operate, and the first telescopic cylinder 14 operates, causing the second gear ring 12 to deflect. The second gear ring 12 drives the three meshing second gears 13 to rotate. The second gears 13 drive the rotating shaft 10 to rotate, and the rotating shaft 10 drives the swing frame 9 to deflect, so that the saw blade contacts the pipe. The direction of rotation of the saw blade is opposite to the direction of rotation of the pipe.

[0029] During the cutting process, the first retaining ring 4 and the second retaining ring 5 rotate synchronously in opposite directions. Thus, the first retaining ring 4 drives the three sets of electric saw devices 11 to rotate, and the second retaining ring 5 drives the pipe to rotate through the three retaining blocks 15. This achieves synchronous opposite rotation of the pipe and the electric saw devices 11, thereby improving the cutting efficiency. In addition, the three sets of electric saw devices 11, which are evenly distributed in a ring, contact the pipe synchronously, so that the pipe is subjected to uniform force.

[0030] During the cutting process, the limiting mechanism restricts the position of the pipe, and the expansion component supports the inside of both sides of the pipe at the cutting point. The saw blade and the clamping block 15 apply force from the outside, and the expansion component applies force from the inside to the outside. This can effectively prevent the pipe from being damaged by unidirectional force during the cutting process and has a protective effect on the pipe.

[0031] After the cutting is completed, the limiting mechanism moves outward, which can bring out the cut pipe. Then, the cut pipe can be removed.

[0032] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A planetary cutting device for processing tungsten-plated alloy and inner-lined oil pipes, comprising a base (1), a support mechanism, a cutting mechanism and a limiting mechanism, wherein the limiting mechanism, the cutting mechanism and the support mechanism are all disposed on the upper side of the base (1); Its features are, The cutting mechanism includes a support frame (2), an outer ring (3), a saw assembly, and a clamp assembly. The support frame (2) is vertically fixed on the base (1), and the outer ring (3) is vertically fixed on the top of the support frame (2). The saw assembly and the clamp assembly are both located inside the outer ring (3). The cutting saw assembly includes a first retaining ring (4), three sets of dividing components and a deflection component. The first retaining ring (4) is rotatably embedded in the outer ring (3). The three sets of dividing components are evenly arranged in a ring inside the first retaining ring (4) and are connected by the deflection component. The clamping assembly includes a second clamping ring (5), three sets of clamping components and a linkage component. The second clamping ring (5) is rotatably embedded in the outer ring (3). The three sets of clamping components are evenly arranged in a ring in the inner circle of the second clamping ring (5) and are connected by the linkage component. The top of the outer ring (3) is provided with a driving component, which includes a first motor (6), a first gear (7) and two first gear rings (8). The first motor (6) is vertically fixedly installed at the top of the outer ring (3). The first gear (7) is fixedly sleeved on the end of the output shaft of the first motor (6). The two first gear rings (8) are respectively fixedly installed on the side of the first retaining ring (4) and the second retaining ring (5) that are close to each other, and both are meshed with the first gear (7).

2. The planetary cutting device for processing tungsten-plated alloy and inner-lined oil pipes as described in claim 1, characterized in that, The dividing components include a swing frame (9), a rotating shaft (10), and an electric saw device (11). The rotating shaft (10) is horizontally rotated and sleeved in the first retaining ring (4). The outer end of the swing frame (9) is fixedly sleeved on the rotating shaft (10). The electric saw device (11) is fixedly installed on the inner end of the swing frame (9). The deflection components include a second gear ring (12), three second gears (13), and a first telescopic cylinder (14). The three second gears (13) are respectively fixedly sleeved on the outer side of the three rotating shafts (10). The second gear ring (12) is rotatably embedded on the outer side of the second retaining ring (5) and meshes with the three second gears (13). Both ends of the first telescopic cylinder (14) are hinged to the outer side of the second gear ring (12) and the outer side of the second retaining ring (5) respectively through pins.

3. The planetary cutting device for processing tungsten-plated alloy and inner-lined oil pipes as described in claim 1, characterized in that, The clamping components include a clamping block (15), a first screw (16), and a third gear (17). The clamping block (15) is slidably sleeved on the inner ring of the second retaining ring (5). The first screw (16) is rotatably sleeved on the second retaining ring (5) and threadedly connected to the clamping block (15). The third gear (17) is fixedly sleeved on the outer end of the first screw (16). The linkage components include a third gear ring (18), a fourth gear ring (19), a fourth gear (20), and a second motor (21). The third gear ring (18) is rotatably embedded on the outer side of the second retaining ring (5) and meshes with the three third gears (17). The second motor (21) is fixedly sleeved on the outer side of the second retaining ring (5). The fourth gear ring (19) is fixedly sleeved on the inner ring of the outer side of the third gear ring (18). The fourth gear (20) is fixedly sleeved on the end of the output shaft of the second motor (21) and meshes with the fourth gear ring (19).

4. The planetary cutting device for processing tungsten-plated alloy and inner-lined oil pipes as described in claim 1, characterized in that, The support mechanism includes two sets of sliding components and a pushing component. The pushing component includes a support plate (22), two first guide rails (23), a third motor (24), a second screw (25), and a pusher (26). The support plate (22) is horizontally fixed on the upper side of the base (1). The two first guide rails (23) are horizontally and symmetrically fixed on the inner walls of both sides of the support plate (22). The pusher (26) is vertically set, and its bottom ends are slidably embedded in the two first guide rails (23). The third motor (24) is fixedly installed inside the support plate (22). The second screw (25) is horizontally screwed and rotated inside the pusher (26), and its two ends are rotated and sleeved on the left side of the support plate (22), and connected to the support plate (22) via a coupling. The output shaft of the third motor (24) is fixedly connected. Two sets of sliding components are symmetrically arranged on the upper side of the support plate (22). The sliding components include multiple uprights (27), multiple second telescopic cylinders (28), a horizontal plate (29), multiple support rods (30) and multiple balls (31). Multiple uprights (27) are vertically fixed on the upper side of the support plate (22). Multiple second telescopic cylinders (28) are respectively tilted and fixedly sleeved on the top of multiple uprights (27). The horizontal plate (29) is horizontally fixed on the top output end of multiple second telescopic cylinders (28). Multiple support rods (30) are vertically fixed on the upper side of the horizontal plate (29). Multiple balls (31) are respectively rolled and embedded on the top of multiple support rods (30).

5. The planetary cutting device for processing tungsten-plated alloy and inner-lined oil pipes as described in claim 1, characterized in that, The limiting mechanism includes an adjusting component and a support component. The adjusting component includes a second guide rail (32), a third screw (33), a fourth motor (34), a bracket (35), a vertical plate (36), and a turntable (37). The second guide rail (32) is horizontally fixed on the upper side of the base (1). The vertical plate (36) is vertically set and its bottom side is horizontally slidably embedded in the second guide rail (32). The bracket (35) is vertically fixed on the second guide rail (32). The fourth motor (34) is fixedly installed on the second guide rail (32). One end of the third screw (33) is fixedly connected to the output shaft end of the fourth motor (34) through a coupling, and the other end is rotatably sleeved in the bracket (35). The bottom side of the vertical plate (36) is threaded onto the third screw (33). The turntable (37) is rotatably embedded in the side of the vertical plate (36) near the outer ring (3). The support component is set in the vertical plate (36).

6. The planetary cutting device for processing tungsten-plated alloy and inner-lined oil pipes as described in claim 5, characterized in that, The expansion assembly includes a slide rod (38), two third telescopic cylinders (39), a fourth telescopic cylinder (40), a push rod (41), and multiple sets of locking components. The slide rod (38) is horizontally slidably fitted in the middle of the upright plate (36). The two third telescopic cylinders (39) are both horizontally set and symmetrically arranged vertically. The two ends of the third telescopic cylinders (39) are fixedly connected to the left side of the upright plate (36) and the right side of the slide rod (38), respectively. The fourth telescopic cylinder (40) is horizontally fixedly installed on the left end of the slide rod (38). The push rod (41) is horizontally slidably fitted in the slide rod (38), and its left end is fixedly connected to the output end of the fourth telescopic cylinder (40). Multiple sets of locking components are all horizontally set on the right end of the slide rod (38) and are evenly distributed in a ring.

7. The planetary cutting device for processing tungsten-plated alloy and inner-lined oil pipes as described in claim 6, characterized in that, The insert component includes two connecting rods (42), a bracket (43), two insert rods (44), and two rollers (45). The right end of the slide rod (38) has multiple mounting slots (381). The two insert rods (44) are fixedly inserted into the inner wall of the mounting slots (381). The middle parts of the two connecting rods (42) are respectively rotated and sleeved on the two insert rods (44). The ends of the two connecting rods (42) located in the mounting slots (381) are hinged to the outside of the push rod (41) through pins. The bracket (43) is horizontally set and is hinged to the ends of the two connecting rods (42) away from the push rod (41) through two pins. The two rollers (45) are horizontally rotated and installed in the bracket (43).

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