Hot-rolled seamless steel pipe finished product cutting device and method

Abstract

The invention discloses a hot-rolled seamless steel tube finished product cutting device and method, and particularly relates to the technical field of seamless steel tube machining equipment.The device comprises a cutting holder, a plurality of bearing frames are installed at the top of the cutting holder, inclined seamless steel tubes are in lap joint with the tops of the bearing frames, and a clamping assembly for clamping the seamless steel tubes is arranged at the top of the cutting holder; an auxiliary frame is installed on one side of the cutting holder, an avoiding driving assembly is installed on the top of the auxiliary frame, a sliding base is slidably arranged on the top of the avoiding driving assembly, and a cutting pipe sleeve capable of moving towards the seamless steel pipe and sleeving the lower end of the seamless steel pipe is slidably arranged on the sliding base; a nozzle I is arranged on the inner side of the end part of the cutting pipe sleeve; a telescopic communicating pipe is arranged in the cutting pipe sleeve, and a spraying assembly is mounted on the communicating pipe; the top of the cutting pipe sleeve is rotationally connected with an angle adjusting frame, and a cutting assembly capable of penetrating into the cutting pipe sleeve is installed on the angle adjusting frame. The influence of cutting scraps on seamless steel pipe cutting is reduced, and the seamless steel pipe cutting quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of seamless steel pipe processing equipment, in particular to a device and method for cutting finished hot-rolled seamless steel pipes. Background Art

[0002] Seamless steel pipe is a hollow, long steel strip, usually made of carbon steel, stainless steel, alloy steel and other materials. Due to its excellent properties such as high strength, corrosion resistance and high temperature resistance, it is widely used in the fields of petroleum, chemical industry, electric power, construction, machinery manufacturing, etc. The production process of seamless steel pipe mainly includes hot rolling and cold rolling. The existing publication number is "CN118417619B" for a seamless steel pipe cutting device. In this patent document, an inner clamping component and a cutting component are used to penetrate into the inner side of the seamless steel pipe to perform cutting operations, which can achieve operations without open flames and improve the safety of the device operation. Cold air is injected into multiple cold air injection pipes to cool the seamless steel pipe during the cutting process, thereby avoiding irregular deformation at the fracture of the seamless steel pipe. However, with this closed form, some of the waste chips generated by the cutting will splash into the pipe and then fall to the part to be cut. When it is cut later, the waste chips here will affect the cutting part, resulting in a decrease in cutting quality. Moreover, as the cutting continues, the waste chips accumulated in the pipe will also increase, resulting in the greater the impact of the waste chips as the cutting progresses. In addition, it is difficult to cut the pipe at an inclined angle using this method. For this reason, we propose a hot-rolled seamless steel pipe finished product cutting device and method for solving the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a device and method for cutting hot-rolled seamless steel pipe products to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for cutting finished hot-rolled seamless steel pipes, comprising a cutting platform, a plurality of support brackets mounted on the top of the cutting platform, an inclined seamless steel pipe overlapped on the top of the support brackets, and a clamping assembly provided on the top of the cutting platform for clamping the seamless steel pipe from both sides; The cutting platform is provided with an auxiliary frame on one side of the lower end of the seamless steel pipe, and an avoidance drive assembly is provided on the top of the avoidance drive assembly. A sliding base that can avoid the seamless steel pipe is provided on the top of the avoidance drive assembly. A cutting sleeve that can move toward the seamless steel pipe and cover the lower end of the seamless steel pipe is provided on the sliding base. A nozzle is provided on the inner side of the end of the cutting sleeve away from the sliding base for spraying gradually heated water on the cutting area; a connecting pipe is provided in the cutting sleeve that can be extended relative to the cutting sleeve, and a spraying component is installed on the connecting pipe for spraying gradually heated water on the cutting area; The top of the cutting sleeve is rotatably connected to an angle adjustment frame, and a cutting component that can gradually penetrate into the cutting sleeve is installed on the angle adjustment frame.

[0005] As a preferred solution of the present invention, wherein: foot supports are installed on both sides of the top of the cutting sleeve; The two ends of the angle adjustment frame are circular, and the outer circumferences of the circles at the two ends of the angle adjustment frame are provided with angle indicator marks, and the angle indicator marks can coincide with the edge lines of the foot support frame for marking the cutting angle; Threaded columns are installed at the centers of both ends of the angle adjustment frame. The ends of the threaded columns pass through the foot support frame from the inside to the outside and are threadedly connected with screw nuts. The screw nuts abut against the outer side of the foot support frame.

[0006] As a preferred solution of the present invention, wherein: a through groove is formed through the top of the cutting sleeve; The cutting assembly includes a cutting blade, a mounting lug plate, a linkage slide bar, and a cross plate; Both ends of the cutting blade are mounted on the mounting ear plates, the linkage slide bar is mounted on the top of the mounting ear plates and extends through the through slot to the outside, and the cross plate is mounted on the top of the linkage slide bar; A linear through slot is provided on the angle adjustment frame; The linkage slide bar passes through the linear through slot, and the linkage slide bar can slide back and forth in the radial direction of the linear through slot and simultaneously be extended and retracted inwards and outwards relative to the linear through slot.

[0007] As a preferred solution of the present invention, wherein: the inner wall of the angle adjustment frame is installed with opposite triangular plates, and a second one-way threaded screw rod is rotatably connected between the triangular plates; The one-way threaded screw rod 2 is threadedly connected to a linear slide slidably connected to the inner wall of the angle adjustment frame, and a cylinder 2 is installed on the top of the linear slide, and the output end of the cylinder 2 is connected to the bottom of the horizontal plate; A driven gear is installed at one end of the one-way threaded screw rod 2, and the driven gear is engaged with a transmission gear rotatably connected to the triangular plate; A second motor is installed on one side of the triangular plate, and an output shaft of the second motor is connected to the axis of the transmission gear.

[0008] As a preferred solution of the present invention, the auxiliary frame is provided with a platform below the cutting sleeve, and a temperature-controlled water tank and a chip collecting trough are placed on the platform; The temperature-controlled water tank is connected to the connecting pipe and the nozzle 1 through a hose, and water is pumped into the nozzle 1 and the connecting pipe; The bottom of the cutting sleeve close to one end of the sliding base is provided with a water outlet, which is connected to the interior of the chip collecting groove through a hose; The chip collecting trough is provided with an overflow port, which is connected to the interior of the temperature-controlled water tank through a pipe; A stopper capable of contacting the seamless steel pipe is installed on one side of the end of the cutting sleeve away from the sliding base.

[0009] As a preferred solution of the present invention, wherein: the avoidance drive assembly includes a linear slide rail, a one-way threaded screw, and a first motor; The linear slide rail 1 is installed on the top of the auxiliary frame, the sliding base is slidably connected to the top of the linear slide rail 1, the one-way threaded screw rod 1 is rotatably connected to the inside of the linear slide rail 1, and the one-way threaded screw rod 1 is threadedly connected to the sliding base; The first motor is mounted on the end of the linear slide rail 1, and the output shaft of the first motor is connected to the end of the one-way threaded screw rod 1; A plurality of transmission guide rods are installed at the end of the cutting sleeve close to the sliding base. The transmission guide rods are slidably connected to the sliding base. The ends of the transmission guide rods passing through the sliding base are installed with connecting end plates. A cylinder 1 is installed on one side of the sliding base close to the connecting end plate, and the output end of the cylinder 1 is connected to the connecting end plate.

[0010] As a preferred solution of the present invention, wherein: the clamping assembly includes a high and low support frame, a mounting plate, and a positioning roller; Two mounting plates are installed on the top ends of the high and low support frames. Two positioning rollers in contact with the outer side of the seamless steel pipe are rotatably installed between the mounting plates. A fourth motor is installed on the outer side of the high and low support frames, and the output shaft of the motor is connected to the end of one of the positioning rollers.

[0011] As a preferred solution of the present invention, wherein: a clamping drive assembly is provided on the top of the cutting platform, and the clamping drive assembly includes a second linear slide rail, a bidirectional threaded screw, a slider, and a third motor; The second linear slide rail is installed on the top of the cutting platform, the slider is slidably connected in the second linear slide rail, and the top of the slider is installed on the bottom of the high and low support frame; The bidirectional threaded screw is rotatably connected to the second linear guide rail, and the sliders are respectively threadedly connected to both ends of the bidirectional threaded screw; A third motor is installed at one end of the second linear slide rail, and an output shaft of the third motor is connected to the end of the bidirectional threaded screw.

[0012] As a preferred solution of the present invention, wherein: the connecting pipe includes a linear hard pipe and a flexible pipe; The linear hard tube passes through the cutting tube sleeve and is threadedly connected to the end of the cutting tube sleeve near the sliding base. The end of the linear hard tube passing through the cutting tube sleeve is connected to the flexible pipe, and the flexible pipe is connected to the temperature-controlled water tank through a hose. The spray assembly includes a supporting hard pipe, an annular hard pipe, and a second spray head; The annular hard tube is in the shape of a circular ring, and a supporting hard tube is installed on the inner side of the annular hard tube. The supporting hard tube is installed on the linear hard tube. The annular hard tube is connected to the linear hard tube through the supporting hard tube. Two nozzles that spray water in opposite directions are provided on both sides of the annular hard tube.

[0013] As a preferred embodiment of the present invention, the method comprises the following steps: Step 1: Place the seamless steel pipe on the support frame, with the lower end of the seamless steel pipe in contact with the abutment plate, and then the two clamping components move relative to each other, at which time the positioning roller contacts the seamless steel pipe and clamps the seamless steel pipe to limit its position; Step 2: Start the first motor, the sliding base moves, and drives the cutting sleeve to move. At this time, the baffle is out of contact with the seamless steel pipe. When the cutting sleeve is facing the seamless steel pipe, start the cylinder 1, and the cutting sleeve moves toward the seamless steel pipe. Step 3: When the cutting sleeve moves to the length required for cutting, the seamless steel pipe is inside the cutting sleeve. At this time, gradually heated water is first pumped into the connecting pipe and the nozzle to preheat the part of the seamless steel pipe to be cut. When the water temperature rises to the set value, the water is kept at a constant temperature. Step 4. Turn to the angle adjustment bracket, adjust the angle adjustment bracket to the angle you need to cut, and then tighten the threaded column; Step 5: Start the second motor and the second cylinder at the same time. The linear slide moves back and forth, and the cross plate gradually moves toward the inside of the cutting sleeve. At this time, the cutting blade produces a back and forth sawing motion gradually approaching the seamless steel pipe. Step 6. Constant temperature water can promptly wash away the cutting waste generated by cutting the seamless steel pipe, and avoid the influence of excessive temperature difference at the cutting point of the seamless steel pipe on the cutting quality and the influence of overheating on the cutting; Step 7: The flushing water flows out from the water outlet of the cutting sleeve and flows into the chip collecting groove. The cutting waste is precipitated in the chip collecting groove, and the overflowing water flows into the temperature-controlled water tank; Step 8. After cutting is completed, the cutting sleeve is removed. At this time, the clamping of the seamless steel pipe is released, and the seamless steel pipe can slide down smoothly under the guidance of the gravity of the seamless steel pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The hot-rolled seamless steel pipe finished product cutting device and method can reduce the influence of overheating and temperature difference on the cutting of seamless steel pipes under the action of inclined cutting and the action of gradually rising water, and can take away the cutting waste of seamless steel pipes without open flames, reducing the influence of cutting waste on the cutting of seamless steel pipes, thereby improving the quality of seamless steel pipe cutting.

[0015] 2. The hot-rolled seamless steel pipe finished product cutting device and method can adjust the cutting angle by rotating the angle adjustment frame to perform inclined cutting on the seamless steel pipe. Under the direction of the angle indicator mark and the screw nut, the cutting angle can be quickly understood, effectively improving the cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 This is a schematic structural diagram of the connection of the clamping components in the present invention; Figure 3 Schematic diagram of the structure of the clamping drive assembly in the present invention; Figure 4 This is a schematic structural diagram of the auxiliary frame connection in the present invention; Figure 5 This is a schematic structural diagram of the cutting pipe sleeve connection in the present invention; Figure 6 This is a schematic structural diagram of a cut-out pipe-sleeve connection in the present invention; Figure 7 This is a schematic structural diagram of the connecting pipe connection in the present invention; Figure 8 This is a schematic structural diagram of the angle adjustment frame connection in the present invention; Figure 9 This is a schematic diagram of the structure of the cutting blade connection in the present invention; Figure 10 For the present invention Figure 5 Schematic diagram of the structure at A in the middle; Figure 11 For the present invention Figure 6 Schematic diagram of the structure at point B.

[0019] In the figure: 1. Cutting platform; 101. Auxiliary frame; 2. Seamless steel pipe; 3. Clamping assembly; 301. High and low support frame; 302. Mounting plate; 303. Positioning roller; 4. Support frame; 51. Cutting pipe sleeve; 511. Abutment baffle; 512. Foot support frame; 513. Through slot; 514. Nozzle 1; 52. Sliding base; 521. Transmission guide rod; 522. Connecting end plate; 523. Cylinder 1; 53. Avoidance drive assembly; 531. Linear slide rail 1; 532. One-way threaded screw rod 1; 533. First motor; 54. Cutting blade; 55. Connecting pipe; 551. Linear hard pipe; 552. Flexible pipe; 553. Supporting rigid tube; 554, annular rigid tube; 555, second nozzle; 56, angle adjustment frame; 561, threaded column; 562, screw nut; 563, angle indicator mark; 564, linear through groove; 57, linear slide; 571, triangle plate; 572, second one-way threaded screw; 573, driven gear; 574, transmission gear; 575, second motor; 576, second cylinder; 577, cross plate; 578, linkage slide; 579, mounting ear plate; 6, temperature-controlled water tank; 7, chip collecting groove; 8, clamping drive assembly; 801, second linear slide; 802, bidirectional threaded screw; 803, slider; 804, third motor. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example: Figure 1-11 As shown, the present invention provides a hot-rolled seamless steel pipe finished product cutting device, comprising a cutting platform 1, a plurality of support brackets 4 are mounted on the top of the cutting platform 1, an inclined seamless steel pipe 2 is overlapped on the top of the support brackets 4, and a clamping assembly 3 is provided on the top of the cutting platform 1 for clamping the seamless steel pipe 2 from both sides; An auxiliary frame 101 is installed on one side of the lower end of the seamless steel pipe 2. An avoidance drive assembly 53 is installed on the top of the auxiliary frame 101. A sliding base 52 that can avoid the seamless steel pipe 2 is slidably provided on the top of the avoidance drive assembly 53. A cutting pipe sleeve 51 that can move toward the seamless steel pipe 2 and cover the lower end of the seamless steel pipe 2 is slidably provided on the sliding base 52. A nozzle 514 is provided on the inner side of the end of the cutting sleeve 51 away from the sliding base 52 for spraying gradually heated water on the cutting area. A connecting pipe 55 is provided within the cutting sleeve 51 and is retractable relative to the cutting sleeve 51. A spraying assembly is installed on the connecting pipe 55 for spraying gradually heated water on the cutting area. The top of the cutting sleeve 51 is rotatably connected to an angle adjustment frame 56 , on which a cutting assembly that can gradually penetrate into the cutting sleeve 51 is installed.

[0022] It should be noted that, in this embodiment, the explanation regarding the lower end of the seamless steel pipe 2 is that the seamless steel pipe 2 is inclined, having one end with a higher height and the other end with a lower height. Here, the lower end of the seamless steel pipe 2 is the end with a lower height. After the sliding base 52 completes the cutting of the seamless steel pipe 2, it can be moved away to form an effect of avoiding the seamless steel pipe 2. At this time, when the clamping of the seamless steel pipe 2 is released, the seamless steel pipe 2 can directly slide down for discharge under the guidance of gravity and the tilt, thereby making the discharge of the seamless steel pipe 2 more convenient, achieving the effect of saving processing procedures and energy saving. The use of gradually heated water for preheating before cutting avoids the cutting component from directly cutting the seamless steel pipe 2. Due to the high-speed cutting of the cutting component, the temperature rises sharply, resulting in a large temperature difference between the cutting point and the surrounding area of ​​the seamless steel pipe 2, generating stress, and thus affecting the cutting quality of the seamless steel pipe 2; At the same time, the gradually rising temperature of the water can avoid excessive temperature difference at the cutting point, and when the rising temperature of the water reaches the preset value, the subsequent water heating is stopped to keep the water temperature constant at this time, which can ensure that the cutting point is cooled while reducing the temperature difference, and the sprayed water can flush the waste generated at the cutting point. At the same time, under the guidance of the inclined cutting sleeve 51 and the seamless steel pipe 2, the flushing of the waste is more convenient and sufficient. At the same time, under the inclined guidance of the cutting sleeve 51, the water can be collected in a centralized manner for subsequent use, and under the adjustment of the angle adjustment frame 56, the seamless steel pipe 2 can be cut at different angles.

[0023] like Figure 1-11 As shown, compared with the previous embodiment, the difference is that foot supports 512 are installed on both sides of the top of the cutting sleeve 51; The two ends of the angle adjustment frame 56 are circular, and the outer circumferences of the two ends of the angle adjustment frame 56 are provided with angle indicator marks 563. The angle indicator marks 563 can coincide with the edge lines of the foot support frame 512 to mark the cutting angle; Threaded columns 561 are installed at the centers of both ends of the angle adjustment frame 56 . The ends of the threaded columns 561 pass through the foot support frame 512 from the inside to the outside and are threadedly connected with screw nuts 562 . The screw nuts 562 abut against the outer side of the foot support frame 512 .

[0024] It should be noted that, in this embodiment, the angle of adjustment can be intuitively identified through the identification of the angle indicator mark 563, making the operation more convenient and realizing the convenience of program operation; By screwing the nut 562 , the angle adjustment frame 56 can be tightened, thereby achieving the positioning effect of the angle adjustment frame 56 after adjustment.

[0025] like Figure 1-11 As shown, compared with the previous embodiment, the difference is that a through groove 513 is formed through the top of the cutting sleeve 51; The cutting assembly includes a cutting blade 54, a mounting lug 579, a linkage slide 578, and a cross plate 577; Both ends of the cutting blade 54 are mounted on the mounting ear plate 579 , the linkage slide 578 is mounted on the top of the mounting ear plate 579 and extends through the through slot 513 to the outside, and the cross plate 577 is mounted on the top of the linkage slide 578 ; A linear through slot 564 is formed through the angle adjustment frame 56; The linkage slide bar 578 passes through the linear through slot 564 , and the linkage slide bar 578 can slide back and forth in the radial direction of 58 in the linear through slot 564 while being able to extend and retract inward and outward relative to the linear through slot 564 .

[0026] It should be noted that in this embodiment, the cutting blade 54, the mounting ear plate 579, the linkage slide rod 578, and the cross plate 577 can move together into the cutting pipe sleeve 51. At the same time, under the limitation of the linear through groove 564, the cutting blade 54, the mounting ear plate 579, the linkage slide rod 578, and the cross plate 577 can move back and forth, so that the cutting blade 54 produces a back and forth sawing effect to cut the seamless steel pipe 2.

[0027] like Figure 1-11 As shown, compared with the previous embodiment, the difference is that the inner wall of the angle adjustment frame 56 is installed with opposite triangular plates 571, and a one-way threaded screw rod 572 is rotatably connected between the triangular plates 571; A linear slide 57 is threadedly connected to the one-way threaded screw rod 572 and is slidably connected to the inner wall of the angle adjustment frame 56. A second cylinder 576 is installed on the top of the linear slide 57. The output end of the second cylinder 576 is connected to the bottom of the horizontal plate 577. A driven gear 573 is mounted on one end of the one-way threaded screw rod 572 , and the driven gear 573 is engaged with a transmission gear 574 rotatably connected to the triangular plate 571 ; A second motor 575 is mounted on one side of the triangular plate 571 , and an output shaft of the second motor 575 is connected to the axis of the transmission gear 574 .

[0028] It should be noted that, in this embodiment, the output shaft of the second motor 575 drives the transmission gear 574 to rotate. The rotation of the transmission gear 574 drives the driven gear 573 to rotate, thereby driving the second one-way screw rod 572 to rotate. The rotation of the second one-way screw rod 572 causes the linear slide 57 to move. The second motor 575 is controlled to achieve the effect of moving the linear slide 57 back and forth. Driven by cylinder 2 576, the horizontal plate 577 can move toward the seamless steel pipe 2, and through the transmission of the linkage slide rod 578 and the mounting ear plate 579, the cutting blade 54 can gradually approach the seamless steel pipe 2 to cut the seamless steel pipe 2.

[0029] like Figure 1-11 As shown, compared with the previous embodiment, the difference is that the auxiliary frame 101 is provided with a platform below the cutting pipe sleeve 51, and a temperature-controlled water tank 6 and a chip collecting trough 7 are placed on the platform; The temperature-controlled water tank 6 is connected to the connecting pipe 55 and the nozzle 1 514 through a hose, and water is pumped into the nozzle 1 514 and the connecting pipe 55; A water outlet is provided at the bottom of the cutting sleeve 51 near one end of the sliding base 52, and the water outlet is connected to the interior of the chip collecting trough 7 through a hose; An overflow port is provided on the chip collecting trough 7, and the overflow port is connected to the interior of the temperature-controlled water tank 6 through a pipe; An abutment plate 511 that can contact the seamless steel pipe 2 is installed on one side of the end of the cutting sleeve 51 away from the sliding base 52.

[0030] It should be noted that, in this embodiment, a heating component and a cooling component are provided inside the temperature-controlled water tank 6 to achieve the effect of heating and cooling the water inside the temperature-controlled water tank 6. At the same time, under the action of the heating and cooling components, the temperature control effect can be achieved. At the same time, a temperature sensor is provided inside the temperature-controlled water tank 6 to monitor the water temperature. The inclined guide of the cutting pipe sleeve 51 allows water to flow toward the water outlet and carry out the cutting waste. Here, the position where the water outlet is connected to the chip collecting groove 7 is preferably the bottom of the chip collecting groove 7, so as to achieve the effect of sufficient sedimentation of the waste, and avoid the waste flowing into the chip collecting groove 7 from above and directly flowing into the temperature-controlled water tank 6 through the overflow port, which affects the centralized treatment of the waste. By abutting against the baffle 511 , the initial position of the seamless steel pipe 2 can be positioned, so as to facilitate determination of the subsequent cutting length of the seamless steel pipe 2 .

[0031] like Figure 1-11As shown, compared with the previous embodiment, the difference is that the avoidance drive assembly 53 includes a linear slide rail 531, a one-way threaded screw 532, and a first motor 533; The linear guide rail 531 is mounted on the top of the auxiliary frame 101, the sliding base 52 is slidably connected to the top of the linear guide rail 531, the one-way threaded screw 532 is rotatably connected to the inside of the linear guide rail 531, and the one-way threaded screw 532 is threadedly connected to the sliding base 52; The first motor 533 is installed at the end of the linear slide rail 1 531, and the output shaft of the first motor 533 is connected to the end of the one-way threaded screw 1 532; A plurality of transmission guide rods 521 are installed at the end of the cutting sleeve 51 close to the sliding base 52. The transmission guide rods 521 are slidably connected to the sliding base 52. The ends of the transmission guide rods 521 passing through the sliding base 52 are installed with connecting end plates 522. A cylinder 1 523 is installed on one side of the sliding base 52 close to the connecting end plate 522 , and the output end of the cylinder 1 523 is connected to the connecting end plate 522 .

[0032] It should be noted that, in this embodiment, the one-way screw rod 532 is driven by the output shaft of the first motor 533 to rotate, and the sliding base 52 is able to slide under the action of the rotation of the one-way screw rod 532. Under the drive of the transmission guide rod 521, the cutting sleeve 51 can slide together with the sliding base 52; Driven by the cylinder 523 , the connecting end plate 522 can move, and driven by the transmission guide rod 521 , the cutting sleeve 51 can move toward the seamless steel pipe 2 .

[0033] like Figure 1-11 As shown, compared with the previous embodiment, the difference is that the clamping assembly 3 includes a high and low support frame 301, a mounting plate 302, and a positioning roller 303; Two mounting plates 302 are installed at the top of the high and low support frames 301. Two positioning rollers 303 that are in contact with the outer side of the seamless steel pipe 2 are rotatably installed between the mounting plates 302. A fourth motor is installed on the outer side of the high and low support frames 301, and the output shaft of the motor is connected to the end of one of the positioning rollers 303.

[0034] It should be noted that, in this embodiment, driven by the output shaft of the fourth motor, the mounting plate 302 can rotate to drive the seamless steel pipe 2 to rotate. The rotating seamless steel pipe 2 can generate centrifugal force to throw out the cutting waste on the seamless steel pipe 2, further reducing the sticking of the waste. In this cutting method, the connecting pipe 55 passes through the cutting position, and the moving distance of the cutting blade 54 is less than the radius of the seamless steel pipe 2, and will not contact the connecting pipe 55. At this time, the cutting of the seamless steel pipe 2 is a plane cutting.

[0035] like Figure 1-11 As shown, compared with the previous embodiment, the difference is that a clamping drive assembly 8 is provided on the top of the cutting platform 1, and the clamping drive assembly 8 includes a second linear guide rail 801, a bidirectional threaded screw 802, a slider 803, and a third motor 804; The second linear slide rail 801 is installed on the top of the cutting platform 1, and the slider 803 is slidably connected in the second linear slide rail 801. The top of the slider 803 is installed on the bottom of the high and low support frame 301; The bidirectional threaded screw 802 is rotatably connected to the second linear guide rail 801, and the sliders 803 are respectively threadedly connected to both ends of the bidirectional threaded screw 802; A third motor 804 is installed at one end of the second linear guide rail 801 , and an output shaft of the third motor 804 is connected to the end of the bidirectional threaded screw 802 .

[0036] It should be noted that, in this embodiment, the linear slide rail 2 801 is slidably connected to two sliders 803, and the two sliders 803 are respectively connected to the high and low support frames 301. The bidirectional interpretation of the bidirectional threaded screw 802 is that opposite threads are provided at both ends of the bidirectional threaded screw 802. Under the drive of the output shaft of the third motor 804, the bidirectional threaded screw 802 can rotate. Under the action of the bidirectional threads on the bidirectional threaded screw 802, the sliders 803 can move relatively, thereby achieving the effect of the high and low support frames 301 approaching and moving away from each other.

[0037] like Figure 1-11 As shown, compared with the previous embodiment, the difference is that the connecting pipe 55 includes a linear hard pipe 551 and a flexible pipe 552; The linear rigid tube 551 passes through the cutting tube sleeve 51 and is threadedly connected to the end of the cutting tube sleeve 51 near the sliding base 52. The end of the linear rigid tube 551 passing through the cutting tube sleeve 51 is connected to the flexible pipe 552. The flexible pipe 552 is connected to the temperature-controlled water tank 6 through a hose. The spray assembly includes a supporting hard pipe 553, an annular hard pipe 554, and a second spray head 555; The annular hard tube 554 is in the shape of a circular ring. A supporting hard tube 553 is installed on the inner side of the annular hard tube 554. The supporting hard tube 553 is installed on the linear hard tube 551. The annular hard tube 554 is connected to the linear hard tube 551 through the supporting hard tube 553. Two nozzles 555 that spray water in opposite directions are provided on both sides of the annular hard tube 554.

[0038] It should be noted that, in this embodiment, by screwing against the baffle 511, the effect of controlling the distance of the linear hard tube 551 into the seamless steel tube 2 can be achieved. When the seamless steel tube 2 is in a rotating cutting mode, the cutting part of the seamless steel tube 2 is between the spraying components. At this time, the two sets of spraying components can flush the cutting part at the same time. When the seamless steel tube 2 is angled cut, the spraying component at the end of the linear hard tube 551 is between the cutting part of the seamless steel tube 2 and the sliding base 52. At this time, the cutting blade 54 can directly and completely cut the seamless steel tube 2 through the seamless steel tube 2. At this time, the seamless steel tube 2 is cut and the seamless steel tube 2 is in a fixed state.

[0039] A method for using a hot-rolled seamless steel pipe finished product cutting device comprises the following steps: Step 1: Place the seamless steel pipe 2 on the support frame 4, with the lower end of the seamless steel pipe 2 abutting against the baffle 511, and then the two clamping assemblies 3 move relative to each other, at which time the positioning roller 303 contacts the seamless steel pipe 2 and clamps the seamless steel pipe 2 to limit its position; Step 2: Start the first motor 533, the sliding base 52 moves, and drives the cutting sleeve 51 to move. At this time, the abutment plate 511 is out of contact with the seamless steel pipe 2. When the cutting sleeve 51 is facing the seamless steel pipe 2, start the cylinder 1 523, and the cutting sleeve 51 moves toward the seamless steel pipe 2. Step 3: When the cutting sleeve 51 is moved to the length required for cutting, the seamless steel pipe 2 is inside the cutting sleeve 51. At this time, gradually heated water is first pumped into the connecting pipe 55 and the nozzle 1 514 to preheat the part of the seamless steel pipe 2 to be cut. When the water temperature rises to the set value, the water temperature is kept constant. Step 4: Turn to the angle adjustment frame 56, adjust the angle adjustment frame 56 to the required cutting angle, and then tighten the threaded column 561; Step 5: Simultaneously start the second motor 575 and the second cylinder 576. The linear slide 57 then moves back and forth, while the cross plate 577 gradually moves toward the interior of the cutting sleeve 51. The cutting blade 54 then makes a back and forth sawing motion, gradually approaching the seamless steel pipe 2. Step 6: The constant temperature water can promptly wash away the cutting waste generated by cutting the seamless steel pipe 2, and avoid the influence of excessive temperature difference at the cutting point of the seamless steel pipe 2 on the cutting quality and the influence of overheating on the cutting; Step 7: The flushing water flows out from the water outlet of the cutting tube sleeve 51 and flows into the chip collecting groove 7. The cutting waste is precipitated in the chip collecting groove 7, and the overflowing water flows into the temperature-controlled water tank 6; Step 8: After the cutting is completed, the cutting sleeve 51 is removed. At this time, the clamping of the seamless steel pipe 2 is released, and the seamless steel pipe 2 can slide down smoothly under the guidance of the gravity of the seamless steel pipe 2 to be discharged.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A hot-rolled seamless steel pipe finished product cutting device, comprising a cutting platform (1), characterized in that: A plurality of support brackets (4) are installed on the top of the cutting platform (1), and an inclined seamless steel pipe (2) is overlapped on the top of the support bracket (4). A clamping assembly (3) for clamping the seamless steel pipe (2) from both sides of the seamless steel pipe (2) is provided on the top of the cutting platform (1); The cutting platform (1) is provided with an auxiliary frame (101) on one side of the lower end of the seamless steel pipe (2), and a avoidance drive assembly (53) is provided on the top of the avoidance drive assembly (53). A sliding base (52) capable of avoiding the seamless steel pipe (2) is provided on the top of the avoidance drive assembly (53). A cutting sleeve (51) capable of moving toward the seamless steel pipe (2) and covering the lower end of the seamless steel pipe (2) is provided on the sliding base (52). A nozzle (514) for spraying gradually heated water on the cutting portion is provided on the inner side of the end of the cutting sleeve (51) away from the sliding base (52); a connecting pipe (55) is provided in the cutting sleeve (51) and is retractable relative to the cutting sleeve (51); a spraying assembly for spraying gradually heated water on the cutting portion is installed on the connecting pipe (55); The top of the cutting sleeve (51) is rotatably connected to an angle adjustment frame (56), and a cutting component that can gradually penetrate into the cutting sleeve (51) is installed on the angle adjustment frame (56).

2. The hot-rolled seamless steel pipe finished product cutting device according to claim 1, characterized in that: Foot supports (512) are installed on both sides of the top of the cutting sleeve (51); The two ends of the angle adjustment frame (56) are circular, and the outer circumferences of the two ends of the angle adjustment frame (56) are provided with angle indicating marks (563), and the angle indicating marks (563) can coincide with the edge lines of the foot support frame (512) for marking the cutting angle; Threaded columns (561) are installed at the centers of both ends of the angle adjustment frame (56). The ends of the threaded columns (561) pass through the foot support frame (512) from the inside out and are threadedly connected to screw nuts (562). The screw nuts (562) abut against the outer side of the foot support frame (512).

3. The hot-rolled seamless steel pipe finished product cutting device according to claim 2, characterized in that: A through groove (513) is formed through the top of the cutting sleeve (51); The cutting assembly includes a cutting blade (54), a mounting lug plate (579), a linkage slide rod (578), and a transverse plate (577); Both ends of the cutting blade (54) are mounted on the mounting ear plate (579), the linkage slide bar (578) is mounted on the top of the mounting ear plate (579) and extends through the through slot (513) to the outside, and the transverse plate (577) is mounted on the top of the linkage slide bar (578); The angle adjustment frame (56) is provided with a linear through slot (564); The linkage slide bar (578) passes through the linear through slot (564), and the linkage slide bar (578) can slide back and forth in the radial direction of (58) within the linear through slot (564) while being telescoped inward and outward relative to the linear through slot (564).

4. The hot-rolled seamless steel pipe finished product cutting device according to claim 3, characterized in that: The inner wall of the angle adjustment frame (56) is provided with opposite triangular plates (571), and a second one-way threaded screw rod (572) is rotatably connected between the triangular plates (571); The one-way threaded screw rod (572) is threadedly connected to a linear slide (57) that is slidably connected to the inner wall of the angle adjustment frame (56), and a cylinder (576) is installed on the top of the linear slide (57), and the output end of the cylinder (576) is connected to the bottom of the horizontal plate (577); A driven gear (573) is mounted on one end of the second one-way threaded screw rod (572), and the driven gear (573) is engaged with a transmission gear (574) rotatably connected to the triangular plate (571); A second motor (575) is installed on one side of the triangular plate (571), and an output shaft of the second motor (575) is connected to the axis of the transmission gear (574).

5. The hot-rolled seamless steel pipe finished product cutting device according to claim 4, characterized in that: The auxiliary frame (101) is provided with a platform below the cutting tube sleeve (51), and a temperature-controlled water tank (6) and a chip collecting trough (7) are placed on the platform; The temperature-controlled water tank (6) is connected to the connecting pipe (55) and the nozzle 1 (514) through a hose, and water is pumped into the nozzle 1 (514) and the connecting pipe (55); The bottom of the cutting sleeve (51) near one end of the sliding base (52) is provided with a water outlet, and the water outlet is connected to the interior of the chip collecting groove (7) through a hose; The chip collecting groove (7) is provided with an overflow port, which is connected to the interior of the temperature-controlled water tank (6) through a pipe; A stopper (511) capable of contacting the seamless steel pipe (2) is installed on one side of the end of the cutting sleeve (51) away from the sliding base (52).

6. The hot-rolled seamless steel pipe finished product cutting device according to claim 5, characterized in that: The avoidance drive assembly (53) comprises a linear slide rail (531), a one-way threaded screw (532), and a first motor (533); The linear slide rail 1 (531) is installed on the top of the auxiliary frame (101), the sliding base (52) is slidably connected to the top of the linear slide rail 1 (531), the one-way threaded screw rod 1 (532) is rotatably connected to the inside of the linear slide rail 1 (531), and the one-way threaded screw rod 1 (532) is threadedly connected to the sliding base (52); The first motor (533) is installed at the end of the linear slide rail (531), and the output shaft of the first motor (533) is connected to the end of the one-way threaded screw (532); A plurality of transmission guide rods (521) are installed at the end of the cutting sleeve (51) close to the sliding base (52), and the transmission guide rods (521) are slidably connected to the sliding base (52). The ends of the transmission guide rods (521) passing through the sliding base (52) are installed with connecting end plates (522); A cylinder 1 (523) is installed on one side of the sliding base (52) close to the connecting end plate (522), and an output end of the cylinder 1 (523) is connected to the connecting end plate (522).

7. The hot-rolled seamless steel pipe finished product cutting device according to claim 6, characterized in that: The clamping assembly (3) comprises a high and low support frame (301), a mounting plate (302), and a positioning roller (303); Two mounting plates (302) are mounted on the top ends of the high and low support frames (301), two positioning rollers (303) in contact with the outer sides of the seamless steel pipe (2) are rotatably mounted between the mounting plates (302), a fourth motor is mounted on the outer sides of the high and low support frames (301), and an output shaft of the motor is connected to the end of one of the positioning rollers (303).

8. The hot-rolled seamless steel pipe finished product cutting device according to claim 7, characterized in that: A clamping drive assembly (8) is provided on the top of the cutting platform (1), and the clamping drive assembly (8) comprises a second linear slide rail (801), a bidirectional threaded screw (802), a slider (803), and a third motor (804); The second linear slide rail (801) is installed on the top of the cutting platform (1), the slider (803) is slidably connected in the second linear slide rail (801), and the top of the slider (803) is installed on the bottom of the high and low support frame (301); The bidirectional threaded screw (802) is rotatably connected to the second linear slide rail (801), and the slider (803) is respectively threadedly connected to both ends of the bidirectional threaded screw (802); A third motor (804) is installed at one end of the second linear slide rail (801), and an output shaft of the third motor (804) is connected to the end of the bidirectional threaded screw (802).

9. The hot-rolled seamless steel pipe finished product cutting device according to claim 8, characterized in that: The connecting pipe (55) includes a linear hard pipe (551) and a flexible pipe (552); The linear hard tube (551) passes through the cutting tube sleeve (51) and is threadedly connected to the end of the cutting tube sleeve (51) near the sliding base (52). The end of the linear hard tube (551) passing through the cutting tube sleeve (51) is connected to the flexible pipe (552). The flexible pipe (552) is connected to the temperature-controlled water tank (6) through a hose. The spray assembly comprises a supporting hard pipe (553), an annular hard pipe (554), and a second spray head (555); The annular hard tube (554) is in the shape of a ring. A supporting hard tube (553) is installed on the inner side of the annular hard tube (554). The supporting hard tube (553) is installed on the linear hard tube (551). The annular hard tube (554) is connected to the linear hard tube (551) via the supporting hard tube (553). Two nozzles (555) for spraying water in opposite directions are provided on both sides of the annular hard tube (554).

10. A method for using the hot-rolled seamless steel pipe finished product cutting device according to claim 9, characterized in that: The steps include: Step 1: Place the seamless steel pipe (2) on the support frame (4), with the lower end of the seamless steel pipe (2) abutting against the abutment baffle (511), and then the two clamping assemblies (3) move relative to each other, at which time the positioning roller (303) contacts the seamless steel pipe (2) and clamps the seamless steel pipe (2) to limit its position; Step 2: Start the first motor (533), the sliding base (52) moves, and drives the cutting sleeve (51) to move. At this time, the abutment plate (511) is out of contact with the seamless steel pipe (2). When the cutting sleeve (51) is facing the seamless steel pipe (2), start the cylinder 1 (523), and the cutting sleeve (51) moves toward the seamless steel pipe (2); Step 3: When the cutting sleeve (51) moves to the length to be cut, the seamless steel pipe (2) is inside the cutting sleeve (51). At this time, gradually heated water is first pumped into the connecting pipe (55) and the nozzle (514) to preheat the part of the seamless steel pipe (2) to be cut. When the water temperature rises to the set value, the water is kept at a constant temperature. Step 4: Turn to the angle adjustment frame (56), adjust the angle adjustment frame (56) to the angle required for cutting, and then tighten the threaded column (561); Step 5: Simultaneously start the second motor (575) and the second cylinder (576), at which point the linear slide (57) moves back and forth, and the cross plate (577) gradually moves toward the inside of the cutting sleeve (51), and at this point, the cutting blade (54) produces a back and forth sawing motion gradually approaching the seamless steel pipe (2); Step 6: The constant temperature water can promptly wash away the cutting waste generated by cutting the seamless steel pipe (2), and avoid the temperature difference at the cutting point of the seamless steel pipe (2) being too large to affect the cutting quality and the influence of overheating on the cutting; Step 7: The flushing water flows out from the water outlet of the cutting tube sleeve (51) and flows into the chip collecting groove (7). Cutting waste is precipitated in the chip collecting groove (7), and the overflowing water flows into the temperature-controlled water tank (6); Step 8: After the cutting is completed, the cutting sleeve (51) is removed. At this time, the clamping of the seamless steel pipe (2) is released, and the seamless steel pipe (2) can slide down smoothly under the guidance of the gravity of the seamless steel pipe (2).

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