A seamless steel pipe cutting apparatus

Abstract

This invention discloses a seamless steel pipe cutting device, specifically relating to the field of seamless steel pipe cutting technology. It includes a device base, with a device support fixedly installed at the top of the base. A first linear module is fixedly installed on the device support, and a mounting bracket is fixedly installed at the movable end of the first linear module. An auxiliary device is provided at the bottom of the mounting bracket. A cutting device is fixedly installed on the device support, and a second linear module is fixedly installed on the top of the device base near the cutting device. This seamless steel pipe cutting device, by setting up a cutting device and coordinating with the positioning and rotation of the seamless steel pipe, performs annular cutting of the seamless steel pipe. It also uses internal auxiliary components to support and cool the cutting position of the seamless steel pipe body using internal contact rollers, reducing inward deformation of the seamless steel pipe body during cutting, thereby improving the cutting quality of the seamless steel pipe body.

Description

Technical Field

[0001] This invention relates to the field of seamless steel pipe cutting technology, specifically to a seamless steel pipe cutting device. Background Technology

[0002] With the continuous development of industrial manufacturing, seamless steel pipes are widely used in petroleum, chemical, natural gas, aerospace, and structural engineering fields due to their high pressure resistance, good corrosion resistance, and uniform mechanical properties. In the production and subsequent processing of seamless steel pipes, the pipe cutting process is a crucial step in achieving fixed-length supply, end processing, or connection assembly. Common seamless steel pipe cutting technologies mainly include abrasive wheel cutting, band saw cutting, circular saw blade cutting, and laser or plasma cutting.

[0003] However, when seamless steel pipes are cut, burrs are often generated at the cut ends, which affects subsequent welding and other processing. Secondly, compared with some thin-walled seamless steel pipes, there is a lack of effective internal support when cutting, which easily causes deformation and requires subsequent reshaping, thus affecting the overall cutting efficiency of seamless steel pipes. To address these issues, we propose a seamless steel pipe cutting device. Summary of the Invention

[0004] The purpose of this invention is to provide a seamless steel pipe cutting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a seamless steel pipe cutting device, comprising a device base, a device bracket fixedly installed at the top of the device base, a first linear module fixedly installed on the device bracket, a mounting bracket fixedly installed at the movable end of the first linear module, an auxiliary device provided at the bottom of the mounting bracket, a cutting device fixedly installed on the device bracket, a second linear module fixedly installed on the top of the device base near the cutting device, a plurality of first pipe self-centering clamping and rotary positioning mechanisms fixedly installed on the second linear module, a third linear module fixedly installed on the top of the device base near the auxiliary device, a second pipe self-centering clamping and rotary positioning mechanism fixedly installed on the third linear module, and a seamless steel pipe body positioned in the first pipe self-centering clamping and rotary positioning mechanism and the second pipe self-centering clamping and rotary positioning mechanism.

[0006] Preferably, the cutting device includes a device bracket, which is fixedly mounted on an equipment bracket. Guide rods are vertically slidably mounted at both ends of the device bracket. A cutting base frame is fixedly mounted at the bottom end of the guide rods. A telescopic cylinder is fixedly mounted in the middle of the device bracket. The drive end of the telescopic cylinder is fixedly mounted at the top end of the cutting base frame. A cutting disc is rotatably mounted at the bottom of the cutting base frame. A first motor is fixedly mounted at the bottom of the cutting base frame. The drive end of the first motor and the shaft end of the cutting disc are fixedly mounted.

[0007] Preferably, a U-shaped support frame is movably mounted on the outer side of the cutting base frame, and a U-shaped sleeve frame is movably fitted on the top of the U-shaped support frame. The U-shaped sleeve frame is fixedly installed at the bottom side of the cutting base frame. Two symmetrically distributed positioning outer rollers are rotatably mounted on the bottom of the U-shaped support frame. The cutting disc is located between the two positioning outer rollers. A guide longitudinal shaft is fixedly installed on the top of the U-shaped support frame. A guide seat is movably fitted on the top of the guide longitudinal shaft. The guide seat is fixedly installed on the top side of the cutting base frame. A spring is movably fitted on the outer side of the guide longitudinal shaft between the bottom end of the guide seat and the top end of the U-shaped support frame.

[0008] Preferably, the auxiliary device includes a connecting crossbar, which is fixedly installed at the bottom of the mounting bracket. An end sleeve is fixedly installed at the end of the connecting crossbar away from the mounting bracket, and a bearing is fixedly clamped at the end of the end sleeve away from the connecting crossbar. An auxiliary component is provided in the middle of the bearing. The auxiliary component includes an end clamp tube, one end of which is fixedly clamped to the middle of the bearing. The end clamp tube has three sets of adjusting components arranged in a ring array. Each adjusting component includes an adjusting slider, which is slidably clamped to the middle of the end clamp tube. An adjusting support frame is rotatably provided at the outer end of the adjusting slider. An adjusting auxiliary frame is rotatably provided at the middle of the adjusting support frame. A rotating seat is rotatably installed at the end of the adjusting auxiliary frame away from the adjusting support frame. The rotating seat is fixedly installed on the outside of the end clamp tube. Among the three sets of adjusting components, an inner clamp tube is fixedly installed at the inner end of the adjusting slider. The inner clamp tube is slidably clamped inside the end clamp tube. An inner auxiliary component is provided at the top of the adjusting support frame at the top position. An inner and outer shaped component are provided at the bottom of the adjusting support frame at the bottom position.

[0009] Preferably, the internal auxiliary component includes a first rotating base, a first horizontal shaft fixedly mounted on the bottom of the first rotating base, the first horizontal shaft rotatably mounted on the top of the corresponding adjusting support frame, a first U-frame fixedly mounted on the top of the first rotating base, a guide horizontal cylinder rotatably mounted on the top of the first U-frame, two symmetrically distributed positioning inner rollers fixedly mounted on the outer side of the guide horizontal cylinder, an inner retaining cylinder movably clamped in the guide horizontal cylinder, a plurality of evenly distributed external spray grooves are opened at the position of the guide horizontal cylinder between the two positioning inner rollers, an internal spray groove is opened at the top of the inner retaining cylinder near the external spray groove, and an L-shaped frame is fixedly mounted on the outer end of the inner retaining cylinder extending out of the end of the guide horizontal cylinder. The L-shaped frame is fixedly installed on the side of the first U-frame. A first flexible tube is fixedly installed on the outer end of the inner clamping tube. A flow guide tube is fixedly installed on the end of the first flexible tube. The flow guide tube is fixedly installed on the outside of the corresponding adjusting support frame. A second flexible tube is fixedly installed on the end clamping tube. A flow guide bend is fixedly clamped on the end clamping tube. The top end of the flow guide bend and the end of the second flexible tube are fixedly installed. A sealing rotating component is fixedly installed on the inner end of the flow guide bend. The sealing rotating component and the end clamping tube are coaxially arranged. A liquid guiding inner tube is fixedly installed in the end sleeve. One end of the liquid guiding inner tube extends into the end clamping tube and is fixedly installed in the middle of the sealing rotating component.

[0010] Preferably, the internal cutting component includes a second rotary seat, a second horizontal shaft is fixedly installed at the end of the second rotary seat, the second horizontal shaft is rotatably installed at the end of the corresponding adjusting support frame, a second U-frame is fixedly installed at the end of the second rotary seat, two symmetrically distributed first auxiliary rollers are rotatably installed at the end of the second U-frame, a bidirectional internal cutting head is provided between the two first auxiliary rollers, the bidirectional internal cutting head is slidably engaged in the middle of the second U-frame, a first telescopic rod is fixedly engaged in the second U-frame, and the driving end of the first telescopic rod is fixedly installed in the inner end of the bidirectional internal cutting head.

[0011] Preferably, the external cutting component includes a third rotary seat, a third horizontal shaft is fixedly installed at the end of the third rotary seat, the third horizontal shaft is rotatably installed at the end of the corresponding adjusting support frame, a third U-frame is fixedly installed at the end of the third rotary seat, two symmetrically distributed second auxiliary rollers are rotatably installed at the end of the third U-frame, a bidirectional external cutting head is provided between the two second auxiliary rollers, the bidirectional external cutting head is slidably engaged in the middle of the third U-frame, a second telescopic rod is fixedly engaged in the third U-frame, and the driving end of the second telescopic rod is fixedly installed in the inner end of the bidirectional external cutting head.

[0012] Preferably, an adjusting screw is fixedly mounted in the middle of the inner wall of the inner clamping tube, and an adjusting screw is threadedly installed in the middle of the adjusting screw. An end sealing plate is fixedly mounted in the end of the end clamping tube near the bearing. One end of the adjusting screw is rotatably mounted in the middle of the end sealing plate. A third motor is fixedly mounted on the outside of the end sealing plate, and the drive end of the third motor is fixedly mounted to one end of the adjusting screw.

[0013] Preferably, the outer end of the adjusting slider is provided with a rotating shaft, which is rotatably mounted on the end of the corresponding adjusting support frame. A positioning sprocket is provided at the end of the adjusting support frame near the adjusting slider. The positioning sprocket and the rotating shaft are coaxially arranged, and the positioning sprocket is fixedly mounted on the adjusting slider. A rotating sprocket is provided at the end of the adjusting support frame away from the adjusting slider. A positioning chain is meshed with the outer sides of the positioning sprocket and the rotating sprocket. The rotating sprocket is fixedly mounted on the shaft ends of the first horizontal shaft, the second horizontal shaft, and the third horizontal shaft, respectively.

[0014] Preferably, the end of the end sleeve near the bearing is provided with an internal gear ring coaxially, and an inner frame is fixedly installed on the inner wall of the end sleeve near the bearing. A drive gear is rotatably installed on the inner frame, and the drive gear is meshed with the inner side of the internal gear ring. A second motor is fixedly installed on the inner frame, and the drive end of the second motor and the shaft end of the drive gear are fixedly installed.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This seamless steel pipe cutting equipment, by setting up a cutting device and coordinating with the positioning and rotation of the seamless steel pipe, performs circumferential cutting of the seamless steel pipe, and uses internal auxiliary parts to support and cool the cutting position of the seamless steel pipe body with internal contact rollers, thereby reducing the inward deformation of the seamless steel pipe body during cutting and thus improving the cutting quality of the seamless steel pipe body.

[0016] 2. This seamless steel pipe cutting equipment, by setting up internal and external cutting parts, uses a bidirectional internal cutting head to cut the inner edges and cross-sections of the seamless steel pipe bodies on both sides, cutting out an inner bevel; and uses a bidirectional external cutting head to cut the outer edges and cross-sections of the seamless steel pipe bodies on both sides, cutting out an outer bevel. This deburring and shaping process is performed on the cross-sections of the seamless steel pipe bodies on both sides, facilitating subsequent welding processing of the seamless steel pipe bodies.

[0017] 3. This seamless steel pipe cutting equipment, by setting auxiliary devices, can flexibly adjust the spacing of the inner auxiliary parts, inner cutting parts and outer cutting parts, and adapt to the internal auxiliary cutting and cross-section grinding of seamless steel pipes with different inner diameters. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the cutting device in this invention.

[0021] Figure 3 This is a schematic diagram showing the structural connection between the cutting base frame and the cutting blade disc in this invention.

[0022] Figure 4 This is a schematic diagram of the partial structural connection of the cutting device in this invention.

[0023] Figure 5 This is a schematic diagram of the auxiliary device in this invention.

[0024] Figure 6 This is a schematic diagram of the structural connection between the end sleeve and the auxiliary component in this invention.

[0025] Figure 7 This is a schematic diagram of the auxiliary component in this invention.

[0026] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle.

[0027] Figure 9 This is a schematic diagram of the partial structural connection of the auxiliary component in this invention.

[0028] Figure 10 This is a schematic diagram showing the structural connection between the adjusting component and the internal auxiliary component in this invention.

[0029] Figure 11 For the present invention Figure 10 Enlarged view of point B in the middle.

[0030] Figure 12 For the present invention Figure 10 A magnified view of point C in the middle.

[0031] Figure 13 This is a schematic diagram of the partial structural connection of the internal auxiliary components in this invention.

[0032] Figure 14 This is a schematic diagram of the internal cutting component in this invention.

[0033] Figure 15 This is a schematic diagram of the structure of the external machining part in this invention.

[0034] In the diagram: 1. Equipment base; 11. Equipment support; 12. First linear module; 13. Mounting bracket; 14. Second linear module; 141. First pipe self-centering clamping and rotary positioning mechanism; 15. Third linear module; 151. Second pipe self-centering clamping and rotary positioning mechanism; 2. Auxiliary device; 3. Cutting device; 4. Auxiliary component; 5. Internal auxiliary part; 6. Internal cutting part; 7. External cutting part; 31. Device support; 311. Telescopic cylinder; 32. Guide longitudinal... 33. Cutting base frame; 34. Cutting blade disc; 341. First motor; 35. U-shaped support frame; 351. U-shaped sleeve frame; 36. Positioning outer roller; 37. Guide longitudinal shaft; 38. Guide seat; 381. Spring; 21. Connecting crossbar; 22. End sleeve; 23. Bearing; 24. Inner frame; 241. Drive gear; 242. Second motor; 25. Liquid guiding inner tube; 41. End clamp; 411. Internal gear ring; 42. Adjusting slider; 421. Rotating shaft 43. Rod; 431. Inner clamp tube; 432. Adjusting screw; 433. End sealing plate; 434. Third motor; 44. Adjusting support frame; 441. Adjusting auxiliary frame; 442. Rotating seat; 45. Positioning sprocket; 451. Rotating sprocket; 452. Positioning chain; 51. First rotating seat; 511. First horizontal shaft; 52. First U-frame; 53. Guide horizontal cylinder; 531. Outer spray groove; 54. Positioning inner roller; 55. Inner clamp tube; 551. Inner spray groove 552, L-shaped frame; 56, first flexible hose; 561, guide pipe; 562, second flexible hose; 563, guide bend; 564, sealing rotating component; 61, second rotating seat; 611, second horizontal shaft; 62, second U-frame; 63, first auxiliary roller; 64, bidirectional internal cutting head; 65, first telescopic rod; 71, third rotating seat; 711, third horizontal shaft; 72, third U-frame; 73, second auxiliary roller; 74, bidirectional external cutting head; 75, second telescopic rod. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example: Figure 1-15As shown, the present invention provides a seamless steel pipe cutting device, including a device base 1, a device support 11 fixedly installed at the top of the device base 1, a first linear module 12 fixedly installed on the device support 11, a mounting bracket 13 fixedly installed at the moving end of the first linear module 12, an auxiliary device 2 provided at the bottom of the mounting bracket 13, the auxiliary device 2 being controlled to move horizontally by activating the first linear module 12, a cutting device 3 fixedly installed on the device support 11, and a second linear module 14 fixedly installed at the top of the device base 1 near the cutting device 3, with multiple first pipe self-centering clamping and rotary positioning mechanisms 141 fixedly installed on the second linear module 14. A third linear module 15 is fixedly installed on the top of the base 1 near the auxiliary device 2. A second pipe self-centering clamping and rotating positioning mechanism 151 is fixedly installed on the third linear module 15. The seamless steel pipe body is positioned and installed in the first pipe self-centering clamping and rotating positioning mechanism 141 and the second pipe self-centering clamping and rotating positioning mechanism 151. The seamless steel pipe body is positioned by using the first pipe self-centering clamping and rotating positioning mechanism 141 and the second pipe self-centering clamping and rotating positioning mechanism 151, and the rotation of the seamless steel pipe body can be controlled. The second linear module 14 and the third linear module 15 can be used to control the horizontal movement of the positioned seamless steel pipe body.

[0037] The cutting device 3 includes a device support 31, which is fixedly mounted on the equipment support 11. Guide rods 32 are vertically slidably mounted at both ends of the device support 31. A cutting base frame 33 is fixedly mounted at the bottom end of the guide rods 32. A telescopic cylinder 311 is fixedly mounted in the middle of the device support 31. The drive end of the telescopic cylinder 311 is fixedly mounted at the top of the cutting base frame 33. A cutting disc 34 is rotatably mounted at the bottom of the cutting base frame 33. A first motor 341 is fixedly mounted at the bottom of the cutting base frame 33. The drive end of the first motor 341 and the shaft end of the cutting disc 34 are fixedly mounted. By turning on the first motor 341, the cutting disc 34 is driven to rotate. In conjunction with turning on the telescopic cylinder 311, the cutting disc 34 is controlled to descend, so that the cutting disc 34 can perform pipe cutting processing on the cutting position of the seamless steel pipe body.

[0038] A U-shaped support frame 35 is movably mounted on the outer side of the cutting base frame 33. A U-shaped sleeve frame 351 is movably fitted on the top of the U-shaped support frame 35. The U-shaped sleeve frame 351 is fixedly installed at the bottom side of the cutting base frame 33. The U-shaped support frame 35 can slide vertically on the outer side of the cutting base frame 33. Two symmetrically distributed positioning outer rollers 36 are rotatably mounted on the bottom of the U-shaped support frame 35. The cutting disc 34 is located between the two positioning outer rollers 36. Before cutting the pipe, the two positioning outer rollers 36 first contact the outer wall of the seamless steel pipe body, so that the cutting position is placed between the two positioning outer rollers 36. This allows for external contact roller positioning of the seamless steel pipe body cutting position, reducing the deformation of the seamless steel pipe body during cutting. A guide longitudinal shaft 37 is fixedly installed at the top of the U-shaped support frame 35, and a guide seat 38 is movably sleeved on the top of the guide longitudinal shaft 37. The guide seat 38 is fixedly installed on the top side of the cutting bottom frame 33. A spring 381 is movably sleeved on the outside of the guide longitudinal shaft 37 between the bottom of the guide seat 38 and the top of the U-shaped support frame 35. When the cutting disc 34 descends to cut the pipe, the two positioning outer rollers 36 always contact the outer wall of the seamless steel pipe body.

[0039] The auxiliary device 2 includes a connecting crossbar 21, which is fixedly installed at the bottom of the mounting bracket 13. An end sleeve 22 is fixedly installed at the end of the connecting crossbar 21 away from the mounting bracket 13. A bearing 23 is fixedly clamped at the end of the end sleeve 22 away from the connecting crossbar 21. An auxiliary component 4 is provided in the middle of the bearing 23. Auxiliary component 4 includes an end clamp tube 41, one end of which is fixedly clamped to the middle of bearing 23. The end clamp tube 41 has three sets of adjusting components arranged in a ring array. Each adjusting component includes an adjusting slider 42, which is slidably clamped to the middle of the end clamp tube 41. An adjusting support frame 44 is rotatably mounted on the outer end of the adjusting slider 42. An adjusting auxiliary frame 441 is rotatably mounted on the middle of the adjusting support frame 44. A rotating seat 442 is rotatably mounted on the end of the adjusting auxiliary frame 441 away from the adjusting support frame 44. The rotating seat 442 is fixedly mounted on the outer side of the end clamp tube 41. An inner clamp tube 43 is fixedly mounted on the inner end of the adjusting slider 42, and the inner clamp tube 43 is slidably clamped inside the end clamp tube 41. The top position of the adjusting support frame 44 is... The inner part is provided with an inner auxiliary component 5, and the bottom of the bottom position adjustment support frame 44 is provided with an inner cutting component 6 and an outer cutting component 7 respectively. By controlling the inner clamping tube 43 to move horizontally in the end clamping tube 41, the adjusting slider 42 is driven to slide synchronously. With the rotation connection of the adjusting auxiliary frame 441, the inner auxiliary component 5, the inner cutting component 6 and the outer cutting component 7 are controlled to unfold synchronously. Conversely, by controlling the inner clamping tube 43 to move horizontally in the opposite direction in the end clamping tube 41, the adjusting slider 42 is driven to slide synchronously. With the rotation connection of the adjusting auxiliary frame 441, the inner auxiliary component 5, the inner cutting component 6 and the outer cutting component 7 are controlled to contract synchronously. In this way, the spacing of the inner auxiliary component 5, the inner cutting component 6 and the outer cutting component 7 can be flexibly adjusted to adapt to the internal auxiliary cutting and cross-section grinding of seamless steel pipes with different inner diameters.

[0040] The internal auxiliary component 5 includes a first rotating base 51. A first horizontal shaft 511 is fixedly installed at the bottom of the first rotating base 51. The first horizontal shaft 511 is rotatably installed on the top of the corresponding adjusting support frame 44. A first U-frame 52 is fixedly installed at the top of the first rotating base 51. A guide horizontal cylinder 53 is rotatably installed on the top of the first U-frame 52. Two symmetrically distributed positioning inner rollers 54 are fixedly installed on the outer side of the guide horizontal cylinder 53. The positioning inner rollers 54 contact the inner wall of the seamless steel pipe body, so that the cutting position is placed between the two positioning inner rollers 54. This allows for internal contact roller support and positioning of the cutting position of the seamless steel pipe body, reducing the risk of damage. When the steel pipe body is cut, it deforms inward. An inner clamping cylinder 55 is movably clamped in the guide cylinder 53. Multiple evenly distributed external spray grooves 531 are opened at the position of the guide cylinder 53 between the two positioning inner rollers 54. An inner spray groove 551 is opened at the top of the inner clamping cylinder 55 near the external spray grooves 531. The outer end of the inner clamping cylinder 55 extends out of the end of the guide cylinder 53 and is fixedly installed with an L-shaped frame 552. The L-shaped frame 552 is fixedly installed on the side end of the first U-frame 52 to fix the inner clamping cylinder 55. A first flexible hose 56 is fixedly installed at the outer end of the inner clamping cylinder 55. A guide is fixedly installed at the end of the first flexible hose 56. A flow-deflecting tube 561 is fixedly installed on the outside of the corresponding adjusting support frame 44. A second flexible tube 562 is fixedly installed at the end of the flow-deflecting tube 561. A flow-deflecting bend 563 is fixedly clamped on the end clamp 41. The top end of the flow-deflecting bend 563 and the end of the second flexible tube 562 are fixedly installed. A sealing rotating component 564 is fixedly installed at the inner end of the flow-deflecting bend 563. The sealing rotating component 564 and the end clamp 41 are coaxially arranged. A liquid-guiding inner tube 25 is fixedly installed in the end sleeve 22. One end of the liquid-guiding inner tube 25 extends into the end clamp 41 and is fixedly installed in the middle of the sealing rotating component 564. Connect the end of the inner liquid guiding tube 25 to the output port of the external cooling liquid output system. When cutting the pipe, the external cooling liquid output system can be turned on. The cooling liquid is introduced into the inner clamping cylinder 55 through the inner liquid guiding tube 25, the guide bend 563, the second hose 562, the guide inclined tube 561, and the first hose 56. Then, it is sprayed out through the inner spray groove 551 and the outer spray groove 531 at the top position, spraying onto the inner side of the seamless steel pipe body. This continuously cools the cutting position of the seamless steel pipe body, reducing the internal deformation caused by excessive temperature during cutting, thereby improving the cutting quality of the seamless steel pipe body.

[0041] The internal cutting component 6 includes a second rotating base 61, with a second horizontal shaft 611 fixedly mounted at one end of the second rotating base 61. The second horizontal shaft 611 is rotatably mounted at the end of the corresponding adjusting support frame 44. A second U-frame 62 is fixedly mounted at one end of the second rotating base 61. Two symmetrically distributed first auxiliary rollers 63 are rotatably mounted at one end of the second U-frame 62. A bidirectional internal cutting head 64 is provided between the two first auxiliary rollers 63. The bidirectional internal cutting head 64 is slidably engaged in the middle of the second U-frame 62. A first telescopic component is fixedly engaged in the second U-frame 62. The drive end of the first telescopic rod 65 is fixedly installed on the inner end of the bidirectional internal cutting head 64. After the seamless steel pipe body is cut, the two seamless steel pipe bodies are separated, and the first telescopic rod 65 is opened to extend, driving the bidirectional internal cutting head 64 to move and extend out of the second U-frame 62, so that the inner edges of the bidirectional internal cutting head 64 and the two seamless steel pipe bodies correspond to each other. Then, they move closer to the two seamless steel pipe bodies, so that the inner edges of the bidirectional internal cutting head 64 and the two seamless steel pipe bodies and the cross-sections of the two seamless steel pipe bodies come into contact.

[0042] The external cutting component 7 includes a third rotary seat 71, with a third horizontal shaft 711 fixedly mounted at one end of the third rotary seat 71. The third horizontal shaft 711 is rotatably mounted at the end of the corresponding adjusting support frame 44. A third U-frame 72 is fixedly mounted at one end of the third rotary seat 71. Two symmetrically distributed second auxiliary rollers 73 are rotatably mounted at one end of the third U-frame 72. A bidirectional external cutting head 74 is provided between the two second auxiliary rollers 73. The bidirectional external cutting head 74 is slidably engaged in the middle of the third U-frame 72. A second telescopic component is fixedly engaged in the third U-frame 72. The drive end of the second telescopic rod 75 is fixedly installed on the inner end of the bidirectional external cutting head 74. After the seamless steel pipe body is cut, the two seamless steel pipe bodies are separated, and the second telescopic rod 75 is opened to extend, driving the bidirectional external cutting head 74 to move and extend out of the third U-frame 72, so that the bidirectional external cutting head 74 and the outer edges of the two seamless steel pipe bodies correspond to each other. Then, they move closer to each other, so that the bidirectional external cutting head 74 and the outer edges of the two seamless steel pipe bodies and the cross-sections of the two seamless steel pipe bodies come into contact.

[0043] An adjusting screw 431 is fixedly mounted in the middle of the inner wall of the inner clamping tube 43. An adjusting screw 432 is threaded in the middle of the adjusting screw 431. An end sealing plate 433 is fixedly mounted at one end of the end clamping tube 41 near the bearing 23. One end of the adjusting screw 432 is rotatably mounted in the middle of the end sealing plate 433. A third motor 434 is fixedly mounted on the outside of the end sealing plate 433. The drive end of the third motor 434 is fixedly mounted to one end of the adjusting screw 432. By turning on the third motor 434, the adjusting screw 432 is driven to rotate, which in turn drives the inner clamping tube 43 to move horizontally in conjunction with the adjusting screw 431.

[0044] A rotating shaft 421 is vertically mounted on the outer end of the adjusting slider 42. The rotating shaft 421 is rotatably mounted on the end of the corresponding adjusting support frame 44. A positioning sprocket 45 is provided at the end of the adjusting support frame 44 near the adjusting slider 42. The positioning sprocket 45 and the rotating shaft 421 are coaxially arranged and the positioning sprocket 45 is fixedly mounted on the adjusting slider 42. A rotating sprocket 451 is provided at the end of the adjusting support frame 44 away from the adjusting slider 42. A positioning chain 452 is meshed with the outer sides of the positioning sprocket 45 and the rotating sprocket 451. The rotating sprocket 451 is fixedly mounted on the outer side of the positioning sprocket 45 and the rotating sprocket 451 respectively. At the ends of the first horizontal shaft 511, the second horizontal shaft 611, and the third horizontal shaft 711, a positioning sprocket 45, a rotating sprocket 451, and a positioning chain 452 are set. When the adjusting support frame 44 rotates, the positioning sprocket 45 is fixed in position. Under the limiting action of the positioning chain 452, the rotating sprocket 451 is controlled to rotate in the opposite direction at the same angle. This ensures that the inner auxiliary part 5, the inner cutting part 6, and the outer cutting part 7 are always horizontally distributed with the axis of the end clamp tube 41, so that the positioning inner roller 54, the first auxiliary roller 63, the second auxiliary roller 73, and the inner wall of the seamless steel pipe body can be in contact.

[0045] An internal gear ring 411 is coaxially mounted on one end of the end sleeve 41 near the bearing 23. An inner frame 24 is fixedly installed on the inner wall of the end sleeve 22 near the bearing 23. A drive gear 241 is rotatably mounted on the inner frame 24, and the drive gear 241 meshes with the inner side of the internal gear ring 411. A second motor 242 is fixedly mounted on the inner frame 24, and the drive end of the second motor 242 is fixedly mounted to the shaft end of the drive gear 241. By turning on the second motor 242, the drive gear 241 is driven to rotate the internal gear ring 411, thereby driving the auxiliary component 4 to enter... The blades rotate so that the bidirectional internal cutting head 64 and the bidirectional external cutting head 74 rotate about the axis of the seamless steel pipe body. The bidirectional internal cutting head 64 cuts the inner edges and cross-sections of the seamless steel pipe body on both sides to create an inner bevel. At the same time, the bidirectional external cutting head 74 cuts the outer edges and cross-sections of the seamless steel pipe body on both sides to create an outer bevel. This deburring and shaping process of the seamless steel pipe body on both sides facilitates the subsequent welding processing of the seamless steel pipe body.

[0046] Working principle: The seamless steel pipe body to be cut is transported by the transport mechanism to the first pipe self-centering clamping rotary positioning mechanism 141 and the second pipe self-centering clamping rotary positioning mechanism 151 to position the seamless steel pipe body. Then, the second linear module 14 and the third linear module 15 are activated to drive the seamless steel pipe body to move until the cutting position of the seamless steel pipe body and the position of the cutting blade 34 are vertically aligned. Subsequently, the first linear module 12 is activated to control the auxiliary device 2 to move horizontally, so that the auxiliary component 4 is moved into the seamless steel pipe body. Then, the third motor 434 is activated to drive the adjusting screw 432 to rotate, which, together with the adjusting screw 431, drives the inner clamping tube 43 to move horizontally, and drives the adjusting slider 42 to slide synchronously. With the rotational connection of the adjusting auxiliary frame 441, the adjusting support frame 44 is driven to rotate, and the inner auxiliary component 5, the inner shaving component 6 and the outer shaving component 7 are controlled to unfold synchronously. When the adjusting support frame 44 rotates, the positioning sprocket 45 is fixed in position. Under the limiting action of the positioning chain 452, the rotating sprocket 451 is controlled to rotate in the opposite direction at the same angle, so that the inner auxiliary part 5, the inner cutting part 6 and the outer cutting part 7 are always horizontally distributed with the axis of the end clamp tube 41 until the positioning inner roller 54, the first auxiliary roller 63, the second auxiliary roller 73 and the inner wall of the seamless steel pipe body come into contact. The positioning inner roller 54 contacts the inner wall of the seamless steel pipe body, so that the cutting position is placed between the two positioning inner rollers 54, thereby enabling the internal contact roller support and positioning of the cutting position of the seamless steel pipe body. Subsequently, the first motor 341 is turned on to drive the cutting disc 34 to rotate, and the telescopic cylinder 311 is turned on to control the cutting disc 34 to descend, so that the cutting disc 34 can perform pipe cutting processing on the cutting position of the seamless steel pipe body. The first pipe self-centering clamping and rotating positioning mechanism 141 and the second pipe self-centering clamping and rotating positioning mechanism 151 are used to control the seamless steel pipe body to rotate, thereby performing circumferential pipe cutting processing on the seamless steel pipe body. When the cutting disc 34 descends to cut the pipe, the two positioning outer rollers 36 always contact the outer wall of the seamless steel pipe body. This allows for external contact roller positioning of the cutting position of the seamless steel pipe body, reducing the deformation of the seamless steel pipe body during cutting. The end of the inner liquid guiding tube 25 is connected to the output port of the external cooling liquid output system. During the annular pipe cutting process, the two positioning inner rollers 54 can provide internal contact roller support and positioning for the cutting position of the seamless steel pipe body, reducing inward deformation of the seamless steel pipe body during cutting. The external cooling liquid output system is activated, and the cooling liquid is introduced into the inner clamping cylinder 55 through the inner liquid guiding tube 25, the guide bend 563, the second hose 562, the guide inclined tube 561, and the first hose 56. Subsequently, it is sprayed out through the inner spray groove 551 and the outer spray groove 531 at the top position, spraying onto the inner side of the seamless steel pipe body, and continuously cooling the cutting position of the seamless steel pipe body, reducing the internal deformation caused by excessive temperature during cutting of the seamless steel pipe body, thereby improving the cutting quality of the seamless steel pipe body. After the cutting is completed, the two seamless steel pipe bodies are respectively positioned on the first pipe self-centering clamping rotary positioning mechanism 141 and the second pipe self-centering clamping rotary positioning mechanism 151. Then, the two seamless steel pipe bodies are separated by using the second linear module 14 and the third linear module 15. Then, the first telescopic rod 65 is extended, which drives the bidirectional inner cutting head 64 to move and extend out of the second U-frame 62, and makes the bidirectional inner cutting head 64 correspond to the inner edge of the two seamless steel pipe bodies. Then, the second telescopic rod 75 is extended, which drives the bidirectional outer cutting head 74 to move and extend out of the third U-frame 72, and makes the bidirectional outer cutting head 74 correspond to the outer edge of the two seamless steel pipe bodies. Subsequently, the two seamless steel pipe bodies on both sides are brought closer together, so that the bidirectional inner cutting head 64 and the inner edges of the two seamless steel pipe bodies on both sides and the cross-section of the two seamless steel pipe bodies on both sides come into contact, and the bidirectional outer cutting head 74 and the outer edges of the two seamless steel pipe bodies on both sides and the cross-section of the two seamless steel pipe bodies on both sides come into contact. Subsequently, the second motor 242 is activated, driving the drive gear 241 to drive the internal gear ring 411 to rotate, thereby driving the auxiliary component 4 to rotate. This causes the bidirectional internal cutting head 64 and the bidirectional external cutting head 74 to rotate around the axis of the seamless steel pipe body. The bidirectional internal cutting head 64 cuts the inner edges and cross-sections of the seamless steel pipe body on both sides, creating an inner bevel. Simultaneously, the bidirectional external cutting head 74 cuts the outer edges and cross-sections of the seamless steel pipe body on both sides, creating an outer bevel. This deburring and shaping process of the seamless steel pipe body on both sides facilitates subsequent welding processing.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seamless steel pipe cutting device, comprising a device base (1), characterized in that: A device bracket (11) is fixedly installed at the top of the device base (1). A first linear module (12) is fixedly installed on the device bracket (11). A mounting bracket (13) is fixedly installed at the moving end of the first linear module (12). An auxiliary device (2) is provided at the bottom of the mounting bracket (13). A cutting device (3) is fixedly installed on the device bracket (11). A second linear module (14) is fixedly installed at the top of the device base (1) near the cutting device (3). Multiple first pipe self-centering clamping and rotary positioning mechanisms (141) are fixedly installed on the second linear module (14). A third linear module (15) is fixedly installed on the top of the equipment base (1) near the auxiliary device (2). A second pipe self-centering clamping and rotary positioning mechanism (151) is fixedly installed on the third linear module (15). Seamless steel pipe bodies are positioned and installed in the first pipe self-centering clamping and rotary positioning mechanism (141) and the second pipe self-centering clamping and rotary positioning mechanism (151).

2. The seamless steel pipe cutting equipment according to claim 1, characterized in that: The cutting device (3) includes a device bracket (31), which is fixedly mounted on the equipment bracket (11). Guide rods (32) are vertically slidably mounted at both ends of the device bracket (31). A cutting base frame (33) is fixedly mounted at the bottom end of the guide rods (32). A telescopic cylinder (311) is fixedly mounted in the middle of the device bracket (31). The drive end of the telescopic cylinder (311) is fixedly mounted at the top of the cutting base frame (33). A cutting blade disc (34) is rotatably mounted at the bottom of the cutting base frame (33). A first motor (341) is fixedly mounted at the bottom of the cutting base frame (33). The drive end of the first motor (341) and the shaft end of the cutting blade disc (34) are fixedly mounted.

3. The seamless steel pipe cutting equipment according to claim 2, characterized in that: The outer side of the cutting base frame (33) is movably fitted with a U-shaped support frame (35), and the top of the U-shaped support frame (35) is movably fitted with a U-shaped sleeve frame (351). The U-shaped sleeve frame (351) is fixedly installed at the bottom side of the cutting base frame (33). Two symmetrically distributed positioning outer rollers (36) are rotatably installed at the bottom of the U-shaped support frame (35). The cutting disc (34) is located between the two positioning outer rollers (36). The top of the U-shaped support frame (35) is fixedly installed with a guide longitudinal shaft (37). The top of the guide longitudinal shaft (37) is movably fitted with a guide seat (38). The guide seat (38) is fixedly installed at the top side of the cutting base frame (33). A spring (381) is movably fitted on the outer side of the guide longitudinal shaft (37) between the bottom of the guide seat (38) and the top of the U-shaped support frame (35).

4. The seamless steel pipe cutting equipment according to claim 1, characterized in that: The auxiliary device (2) includes a connecting crossbar (21), which is fixedly installed at the bottom of the mounting bracket (13). An end sleeve (22) is fixedly installed at one end of the connecting crossbar (21) away from the mounting bracket (13). A bearing (23) is fixedly clamped at one end of the end sleeve (22) away from the connecting crossbar (21). An auxiliary component (4) is provided in the middle of the bearing (23). The auxiliary component (4) includes an end clamp tube (41), one end of which is fixedly clamped to the middle of the bearing (23). The end clamp tube (41) has three sets of adjusting components arranged in a ring array. Each adjusting component includes an adjusting slider (42), which is slidably clamped to the middle of the end clamp tube (41). An adjusting support frame (44) is rotatably provided at the outer end of the adjusting slider (42), and an adjusting auxiliary frame (441) is rotatably provided at the middle of the adjusting support frame (44). 441) A rotating seat (442) is rotatably installed at one end away from the adjusting support frame (44). The rotating seat (442) is fixedly installed on the outside of the end clamp tube (41). An inner clamp tube (43) is fixedly installed at the inner end of the adjusting slider (42) among the three sets of adjusting components. The inner clamp tube (43) is slidably clamped in the end clamp tube (41). An inner auxiliary part (5) is provided at the top of the adjusting support frame (44) at the top position. An inner cutting part (6) and an outer cutting part (7) are provided at the bottom of the adjusting support frame (44) at the bottom position.

5. The seamless steel pipe cutting equipment according to claim 4, characterized in that: The inner auxiliary component (5) includes a first rotating seat (51), a first horizontal shaft (511) is fixedly installed at the bottom of the first rotating seat (51), the first horizontal shaft (511) is rotatably installed at the top of the corresponding adjusting support frame (44), a first U-frame (52) is fixedly installed at the top of the first rotating seat (51), a guide cylinder (53) is rotatably installed at the top of the first U-frame (52), two symmetrically distributed positioning inner rollers (54) are fixedly installed on the outer side of the guide cylinder (53), an inner clamping cylinder (55) is movably clamped in the guide cylinder (53), a plurality of evenly distributed outer spray grooves (531) are opened at the position of the guide cylinder (53) between the two positioning inner rollers (54), an inner spray groove (551) is opened at the position of the top of the inner clamping cylinder (55) near the outer spray groove (531), the outer end of the inner clamping cylinder (55) extends out of the end of the guide cylinder (53) and is fixedly installed with an L-shaped frame (552), the L-shaped frame (552) is fixedly installed on the side of the first U-frame (52). The outer end of the inner clamping cylinder (55) is fixedly installed with a first flexible tube (56). The end of the first flexible tube (56) is fixedly installed with a guide tube (561). The guide tube (561) is fixedly installed on the outside of the corresponding adjusting support frame (44). The end of the guide tube (561) is fixedly installed with a second flexible tube (562). The end clamping tube (41) is fixedly clamped with a guide bend (56). 3) The top end of the flow guide bend (563) and the end of the second hose (562) are fixedly installed. A sealing rotating component (564) is fixedly installed at the inner end of the flow guide bend (563). The sealing rotating component (564) and the end clamp (41) are coaxially arranged. A liquid guiding inner tube (25) is fixedly installed in the end sleeve (22). One end of the liquid guiding inner tube (25) extends into the end clamp (41) and is fixedly installed in the middle of the sealing rotating component (564).

6. The seamless steel pipe cutting equipment according to claim 5, characterized in that: The internal cutting component (6) includes a second rotating seat (61), a second horizontal shaft (611) is fixedly installed at the end of the second rotating seat (61), the second horizontal shaft (611) is rotatably installed at the end of the corresponding adjusting support frame (44), a second U-frame (62) is fixedly installed at the end of the second rotating seat (61), two symmetrically distributed first auxiliary rollers (63) are rotatably installed at the end of the second U-frame (62), a bidirectional internal cutting head (64) is provided between the two first auxiliary rollers (63), the bidirectional internal cutting head (64) is slidably engaged in the middle of the second U-frame (62), a first telescopic rod (65) is fixedly engaged in the second U-frame (62), and the driving end of the first telescopic rod (65) is fixedly installed in the inner end of the bidirectional internal cutting head (64).

7. The seamless steel pipe cutting equipment according to claim 6, characterized in that: The external cutting component (7) includes a third rotary seat (71), a third horizontal shaft (711) is fixedly installed at the end of the third rotary seat (71), the third horizontal shaft (711) is rotatably installed at the end of the corresponding adjusting support frame (44), a third U-frame (72) is fixedly installed at the end of the third rotary seat (71), two symmetrically distributed second auxiliary rollers (73) are rotatably installed at the end of the third U-frame (72), a bidirectional external cutting head (74) is provided between the two second auxiliary rollers (73), the bidirectional external cutting head (74) is slidably engaged in the middle of the third U-frame (72), a second telescopic rod (75) is fixedly engaged in the third U-frame (72), and the driving end of the second telescopic rod (75) is fixedly installed in the inner end of the bidirectional external cutting head (74).

8. The seamless steel pipe cutting equipment according to claim 4, characterized in that: An adjusting screw (431) is fixedly mounted in the middle of the inner wall of the inner clamp tube (43). An adjusting screw (432) is threaded in the middle of the adjusting screw tube (431). An end sealing plate (433) is fixedly mounted at one end of the end clamp tube (41) near the bearing (23). One end of the adjusting screw (432) is rotatably mounted in the middle of the end sealing plate (433). A third motor (434) is fixedly mounted on the outside of the end sealing plate (433). The drive end of the third motor (434) and one end of the adjusting screw (432) are fixedly mounted.

9. A seamless steel pipe cutting device according to claim 7, characterized in that: The outer end of the adjusting slider (42) is vertically provided with a rotating shaft (421). The rotating shaft (421) is rotatably installed at the end of the corresponding adjusting support frame (44). The adjusting support frame (44) is provided with a positioning sprocket (45) at one end near the adjusting slider (42). The positioning sprocket (45) and the rotating shaft (421) are coaxially arranged. The positioning sprocket (45) is fixedly installed on the adjusting slider (42). The adjusting support frame (44) is provided with a rotating sprocket (451) at one end away from the adjusting slider (42). A positioning chain (452) is meshed with the outer sides of the positioning sprocket (45) and the rotating sprocket (451). The rotating sprocket (451) is fixedly installed at the shaft ends of the first horizontal shaft (511), the second horizontal shaft (611), and the third horizontal shaft (711).

10. A seamless steel pipe cutting device according to claim 4, characterized in that: The end of the end sleeve (41) near the bearing (23) is coaxially provided with an internal gear ring (411). An inner frame (24) is fixedly installed on the inner wall of the end sleeve (22) near the bearing (23). A drive gear (241) is rotatably installed on the inner frame (24). The drive gear (241) and the inner side of the internal gear ring (411) are meshed. A second motor (242) is fixedly installed on the inner frame (24). The drive end of the second motor (242) and the shaft end of the drive gear (241) are fixedly installed.

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