A seamless steel pipe cutting device

Abstract

This invention relates to the field of cutting device technology, and more specifically discloses a seamless steel pipe cutting device, including a movable rotating assembly mounted above a base, a vision inspection assembly located behind the movable rotating assembly, two clamping assemblies located behind the vision inspection assembly, a movable cutting machine located on one side of the clamping assemblies, and a pressure cylinder mounted above the clamping assemblies. The movable rotating assembly has a steel pipe to be cut on it. The movable rotating assembly includes a first motor, a screw fixedly connected to the shaft of the first motor, and first supports rotatably connected to both ends of the screw. This invention utilizes the friction generated by the expansion of an airbag and the inside of the steel pipe to be cut to achieve relative fixation between the steel pipe and the airbag. The first motor drives the steel pipe to move back and forth through forward and reverse rotation. Combined with the vision inspection assembly, it can accurately locate defective parts, whether at the head or in the middle, allowing for convenient cutting and effectively improving product quality.

Description

Technical Field

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

[0002] Seamless steel pipe cutting devices are key equipment in steel pipe production, used to precisely remove defective portions from the ends of steel pipes, ensuring pipe quality and subsequent processing accuracy. Currently, most mainstream cutting devices combine mechanical and hydraulic methods. The mechanical structure provides stable cutting support and positioning, ensuring the steel pipe is accurately positioned and does not wobble during cutting; the hydraulic system provides powerful and stable cutting force, adjusting the cutting pressure according to different pipe specifications. Common cutting methods include sawing and milling. Sawing devices use high-speed rotating saw blades to cut steel pipes, offering lower cost and simpler operation, but the cut surface flatness is less than ideal. Milling devices use rotating milling cutters to achieve a smoother cut surface, but the equipment cost and maintenance difficulty are relatively higher. Furthermore, automated control technology is widely used in cutting devices. By monitoring parameters such as the steel pipe's position and dimensions in real time through sensors, the control system automatically adjusts cutting parameters, achieving efficient and precise cutting, greatly improving production efficiency and product quality stability.

[0003] Chinese patent publication number CN119426709B discloses a seamless steel pipe cutting device, comprising: a worktable with a groove in the center; a bracket fixed to the top of one end of the worktable, a telescopic rod mounted on the bracket, and a sawing device mounted on the bottom of the telescopic rod, the sawing device capable of cutting the seamless steel pipe; several clamping units arranged on the worktable and on both sides of the groove, the clamping units cooperating to clamp the seamless steel pipe; and a cleaning unit. This invention, by setting a cleaning unit on the worktable, can clean the cut portion of the seamless steel pipe to remove defects; cleaning before cutting removes impurities and oil, reducing the impact of impurities on cutting quality and also reducing the risk of fire.

[0004] Currently, seamless steel pipe cutting devices can only remove the defective parts at the head of the steel pipe, and cannot remove the defective parts in the middle of the steel pipe, which reduces the quality of the product. In addition, the dust collection device in the seamless steel pipe cutting device cannot replace the filter plate in time after dust collection, which may cause secondary air pollution due to filter contamination. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a seamless steel pipe cutting device to solve the problems existing in the background art.

[0006] The present invention provides the following technical solution: a seamless steel pipe cutting device, comprising a movable rotating component installed above a base, a vision inspection component provided behind the movable rotating component, two clamping components provided behind the vision inspection component, a movable cutting machine provided on one side of the clamping components, a pressure cylinder installed above the clamping components, and a steel pipe to be cut provided on the movable rotating component.

[0007] The moving and rotating assembly includes a first motor, a screw fixedly connected to the shaft of the first motor, a first bracket rotatably connected to both ends of the screw, a triangular moving block helically connected to the outer side of the screw, a fixed clamping plate slidably connected to the outer side of the triangular moving block, the bottom of the fixed clamping plate being fixedly connected to a base, a guide rod slidably connected to the inside of the triangular moving block, a second bracket rotatably connected to both ends of the guide rod, the bottom of the second bracket being fixedly connected to the fixed clamping plate, a protrusion fixedly connected to the side of the triangular moving block near the clamping assembly, the protrusion being large enough to push the steel pipe to be cut to move, the protrusion being located between the screw and the guide rod, the front end of the protrusion being fixedly connected to the housing of a second motor, an airbag fixedly connected to the shaft of the second motor, the second motor, the airbag and the steel pipe to be cut being concentric and all smaller than the steel pipe to be cut;

[0008] Furthermore, the base includes a base plate, the top of which is provided with a first clearance groove and a second clearance groove. A feeding component is provided on one side of the moving rotating component. A waste recycling component is provided below the clamping component and is located inside the first clearance groove. Two ventilation pipe assemblies are provided on the rear side of the clamping component. An opening and closing component is installed inside the ventilation pipe assembly. A filter plate replacement component is installed above the ventilation pipe assembly. A moving component connects the filter plate replacement component and the ventilation pipe assembly. A mechanical claw is provided on the outside of the moving cutter. A blower is provided inside the ventilation pipe assembly. A support block is fixed above the base plate. A pressure cylinder is fixed below the support block. A filter plate component is slidably connected inside the filter plate replacement component. A filter plate component is installed inside the ventilation pipe assembly. Two flow meters are installed inside the ventilation pipe assembly, located at the front and rear of the filter plate component inside the ventilation pipe assembly, respectively.

[0009] Furthermore, the clamping assembly includes a first hydraulic cylinder, the cylinder body of which is fixedly connected to the base plate, a rotating clamping plate abutting the top end of the piston rod of the first hydraulic cylinder, a connecting rod fixedly connected to the upper corner of the rotating clamping plate, a third bracket rotatably connected to both ends of the connecting rod, and the bottom of the third bracket fixedly connected to the base plate.

[0010] Furthermore, the feeding assembly includes a feeding box with a notch at the bottom. A conveyor belt is installed at the notch, and the conveyor belt has first baffles on its surface. The spacing between the first baffles is greater than or equal to the outer diameter of the steel pipe to be cut, facilitating the arrangement of the steel pipes. The inner wall width of the feeding box is equal to the length of the steel pipe to be cut, and the inner wall height of the feeding box is equal to the outer diameter of the steel pipe to be cut, facilitating the guidance of the movement of the steel pipe. Rotating rollers are movably connected to the inner surfaces of both ends of the conveyor belt. The internal surfaces of the rotating rollers are fixed. A rotating rod is fixedly connected to the feed box, and a fourth bracket is rotatably connected to both ends of the rotating rod. The bottom of the fourth bracket is fixedly connected to the base plate. A discharge port is provided on one side of the feed box. The discharge port is located above the fixed clamping plate so that the steel pipe to be cut can fall directly between the two fixed clamping plates after leaving the discharge port. A feeding port is provided above the feed box. The feeding port is directly opposite the last and second-to-last first baffles on the upper plane of the conveyor belt. The length of the feeding port is the same as the length of the steel pipe to be cut, and the width of the feeding port is the same as the outer diameter of the steel pipe to be cut.

[0011] Furthermore, the waste recycling component includes a waste box located inside the first clearance groove. The length of the waste box is greater than the length of the steel pipe to be cut, allowing the steel pipe to fall into the waste box entirely. A support plate is slidably connected inside the waste box, and a spring is installed between the support plate and the waste box. The two ends of the spring abut against the support plate and the bottom of the waste box, respectively.

[0012] Furthermore, the opening and closing assembly includes a second hydraulic cylinder, and the piston rod of the second hydraulic cylinder is fixedly connected to a second baffle.

[0013] Furthermore, the moving component includes a third motor, which is fixedly connected to the upper surface of the ventilation duct assembly. A gear is fixedly connected to the shaft of the third motor, and a rack is meshed with the bottom of the gear. A first T-block is fixedly connected to the bottom of the rack, and the first T-block is slidably connected to the ventilation duct assembly.

[0014] Furthermore, the ventilation duct assembly includes a ventilation duct body, with a first through groove running through the upper and lower surfaces of the ventilation duct body. A sealing groove is provided at the bottom of the first through groove. A filter plate recycling box is installed at the bottom of the ventilation duct body. The filter plate recycling box is located inside a second clearance groove. A symmetrical second T-shaped groove is provided on the upper surface of the ventilation duct body. A filter plate component is slidably connected inside the first through groove.

[0015] Furthermore, the filter plate replacement assembly includes a movable box body. The upper surface of the movable box body has multiple second through inclined grooves. The inclination of the second through inclined grooves is the same as that of the first through inclined grooves. Filter plate components are slidably connected inside the second through inclined grooves. Symmetrical second T-shaped blocks are fixedly connected to the bottom of the movable box body. The second T-shaped blocks are slidably connected to the second T-shaped grooves.

[0016] The technical effects and advantages of this invention are as follows:

[0017] 1. This invention utilizes the friction generated by the expansion of an airbag and the inside of the steel pipe to be cut to fix the steel pipe to be cut relative to the airbag. The first motor drives the steel pipe to be cut to move back and forth by rotating forward and backward. With the help of a vision inspection component, the defective parts can be accurately located. Whether the defect is at the head or in the middle, it can be easily cut, effectively improving product quality.

[0018] 2. The present invention sets inclined grooves in the ventilation duct assembly and filter plate replacement assembly. Utilizing the gravity of the filter plate itself, in conjunction with the flow meter sensing the flow change, the opening and closing assembly and the moving assembly are controlled to achieve automatic dropping and replacement of the filter plate, avoiding secondary air pollution caused by filter screen contamination and ensuring dust collection effect. Attached Figure Description

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

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective.

[0021] Figure 3 This is a cross-sectional view of the overall structure of the present invention.

[0022] Figure 4 This is a longitudinal overall structural cross-sectional view of the present invention.

[0023] Figure 5 This is a longitudinal overall structural cross-sectional view of another section of the present invention.

[0024] Figure 6 For the present invention Figure 1 An enlarged structural diagram at point a.

[0025] Figure 7 For the present invention Figure 2 A magnified structural diagram at point b.

[0026] Figure 8 For the present invention Figure 3 A magnified structural diagram at point c.

[0027] Figure 9 For the present invention Figure 5 A magnified structural diagram at point d.

[0028] The attached figures are labeled as follows: 1. Base; 101. Base plate; 102. First clearance groove; 103. Second clearance groove; 2. Moving and rotating assembly; 201. First motor; 202. Screw; 203. First bracket; 204. Guide rod; 205. Second bracket; 206. Triangular moving block; 207. Protrusion; 208. Second motor; 209. Airbag; 2010. Fixed clamping plate; 3. Clamping assembly; 301. First hydraulic cylinder; 302. Rotating clamping plate; 303. Connecting rod; 304. Third bracket; 4. Feeding assembly; 401. Fourth bracket; 402. Rotating rod; 403. Rotating roller; 404. Conveyor belt; 405. First baffle; 406. Feeding box; 407. Discharge port; 408. Feeding port; 5. Waste recycling. Components; 501, Waste box; 502, Spring; 503, Support plate; 6, Opening and closing assembly; 601, Second hydraulic cylinder; 602, Second baffle; 7, Moving assembly; 701, Third motor; 702, Gear; 703, Rack; 704, First T-block; 8, Ventilation pipe assembly; 801, Ventilation pipe body; 802, First through-slot; 803, Sealing slot; 804, Filter plate recovery box; 805, Second T-slot; 9, Filter plate replacement assembly; 901, Moving box body; 902, Second through-slot; 903, Second T-block; 10, Vision inspection assembly; 11, Pressure cylinder; 12, Mechanical gripper; 13, Moving cutting machine; 14, Blower; 15, Support block; 16, Steel pipe to be cut; 17, Filter plate; 18, Flow meter. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The seamless steel pipe cutting device involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Reference Figure 1 , Figure 6 and Figure 8 The present invention provides a seamless steel pipe cutting device, including a base 1, a movable rotating component 2 installed above the base 1, a vision inspection component 10 provided behind the movable rotating component 2, two clamping components 3 provided behind the vision inspection component 10, a movable cutting machine 13 provided on one side of the clamping component 3, a pressure cylinder 11 installed above the clamping component 3, and a steel pipe 16 to be cut provided on the movable rotating component 2.

[0031] The movable rotating assembly 2 includes a first motor 201, with a screw 202 fixedly connected to the shaft of the first motor 201. A first bracket 203 is rotatably connected to both ends of the screw 202. A triangular moving block 206 is helically connected to the outer side of the screw 202. A fixed clamping plate 2010 is slidably connected to the outer side of the triangular moving block 206. The bottom of the fixed clamping plate 2010 is fixedly connected to the base 1. A guide rod 204 is slidably connected inside the triangular moving block 206. A second bracket 205 is rotatably connected to both ends of the guide rod 204. The bottom of 205 is fixedly connected to the fixed clamping plate 2010. A protruding block 207 is fixedly connected to the side of the triangular moving block 206 near the clamping assembly 3. The size of the protruding block 207 is sufficient to push the steel pipe 16 to be cut to move. The protruding block 207 is located between the screw 202 and the guide rod 204. The front end of the protruding block 207 is fixedly connected to the housing of the second motor 208. The shaft of the second motor 208 is fixedly connected to the air bag 209. The second motor 208, the air bag 209 and the steel pipe 16 to be cut are concentric and their size is smaller than that of the steel pipe 16 to be cut.

[0032] In this embodiment, it should be specifically noted that the airbag 209 is connected to an external air pump, which continuously supplies air to the airbag 209 and depresses it.

[0033] The main difference between this embodiment and the prior art is that in this embodiment, the friction generated between the inflated airbag 209 and the inside of the steel pipe 16 to be cut is used to fix the steel pipe 16 to be cut relative to the airbag 209, thereby realizing the back-and-forth movement of the steel pipe 16 to be cut relative to the mobile cutting machine 13, so as to expose the defective parts of the steel pipe 16 to be cut for easy cutting by the mobile cutting machine 13. Specifically, it includes the mobile rotating component 2, the moving component 7, the ventilation pipe component 8, and the filter plate replacement component 9.

[0034] The above structure is the main structure of this embodiment, which solves the problem that the filter plate 17 cannot be automatically replaced. The vision inspection component 10 is an existing structure. The specific structure and connection method of the vision inspection component 10 will not be described in detail in this embodiment. In addition, the pressure cylinder 11 is also existing technology. Therefore, this application does not make detailed limitations.

[0035] Reference Figures 1-3 and Figure 5The base 1 includes a base plate 101. The top of the base plate 101 is provided with a first clearance groove 102 and a second clearance groove 103. A feeding component 4 is provided on one side of the moving rotating component 2. A waste recycling component 5 is provided below the clamping component 3. The waste recycling component 5 is located inside the first clearance groove 102. Two ventilation pipe components 8 are provided on the rear side of the clamping component 3. An opening and closing component 6 is installed inside the ventilation pipe component 8. A filter plate replacement component 9 is installed above the ventilation pipe component 8. A moving component 7 is connected between the filter plate replacement component 9 and the ventilation pipe component 8. A mechanical claw 12 is provided on the outside of the moving cutting machine 13. A blower 14 is provided inside the ventilation pipe component 8. A support block 15 is fixed above the base plate 101. A pressure cylinder 11 is fixed below the support block 15. A filter plate component 17 is slidably connected inside the filter plate replacement component 9. A filter plate component 17 is installed inside the ventilation pipe component 8. Two flow meters 18 are installed inside the ventilation pipe component 8. The two flow meters 18 are located on the front and rear sides of the filter plate component 17 inside the ventilation pipe component 8, respectively.

[0036] In this embodiment, it should be specifically noted that the blower 14 is existing technology, and the specific structure and connection method of the blower 14 will not be described in detail in this embodiment.

[0037] Reference Figure 1 , Figure 2 and Figure 5 The clamping assembly 3 includes a first hydraulic cylinder 301, the cylinder body of the first hydraulic cylinder 301 is fixedly connected to the base plate 101, the top end of the piston rod of the first hydraulic cylinder 301 is abutted against and connected to a rotating clamping plate 302, the upper corner of the rotating clamping plate 302 is fixedly connected to a connecting rod 303, the two ends of the connecting rod 303 are rotatably connected to a third bracket 304, and the bottom of the third bracket 304 is fixedly connected to the base plate 101.

[0038] In this embodiment, it should be specifically noted that if the steel pipe 16 to be cut is long enough and the number of defective segments is large enough, several clamping components 3 can be arranged.

[0039] Reference Figure 1 , Figure 2 and Figure 4The feeding assembly 4 includes a feeding box 406 with a notch at the bottom. A conveyor belt 404 is installed at the notch. The conveyor belt 404 has first baffles 405 on its surface. The spacing between the first baffles 405 is greater than or equal to the outer diameter of the steel pipe 16 to be cut, facilitating the arrangement of the steel pipe 16. The inner wall width of the feeding box 406 is equal to the length of the steel pipe 16 to be cut, and the inner wall height is equal to the outer diameter of the steel pipe 16 to be cut, facilitating the guidance of the movement of the steel pipe 16. Rotating rollers 403 are movably connected inside the two ends of the conveyor belt 404. Rotating rods 402 are fixedly connected inside the rotating rollers 403. The two ends of the rotating rod 402 are rotatably connected to the fourth bracket 401. The bottom of the fourth bracket 401 is fixedly connected to the base plate 101. The feeding box 406 has a discharge port 407 on one side. The discharge port 407 is located above the fixed clamping plate 2010 so that the steel pipe 16 to be cut can fall directly between the two fixed clamping plates 2010 after leaving the discharge port 407. The feeding box 406 has a feeding port 408 above it. The feeding port 408 is directly opposite the last and second to last first baffle 405 on the upper plane of the conveyor belt 404. The length of the feeding port 408 is the same as the length of the steel pipe 16 to be cut, and the width of the feeding port 408 is the same as the outer diameter of the steel pipe 16 to be cut.

[0040] In this embodiment, it should be specifically explained that when the steel pipe 16 to be cut at the front of the feeding box 406 falls into the fixed clamping plate 2010 under the movement of the conveyor belt 404 and the drive of the first baffle 405, the space between the last and second-to-last first baffles 405 on the upper surface of the conveyor belt 404 is cleared, and the steel pipe 16 to be cut at the bottom inside the feeding port 408 enters it.

[0041] Reference Figures 1-3 and Figure 5 The waste recycling component 5 includes a waste box 501, which is located inside the first clearance groove 102. The length of the waste box 501 is greater than the length of the steel pipe 16 to be cut, so that the steel pipe 16 to be cut can fall into the waste box 501 in its entirety. A support plate 503 is slidably connected inside the waste box 501. A spring 502 is installed between the support plate 503 and the waste box 501. The two ends of the spring 502 abut against the support plate 503 and the bottom of the waste box 501, respectively.

[0042] In this embodiment, it should be specifically explained that the waste recycling component 5 is used to collect the waste material that falls from the clamping component 3, and the spring 502 is used to absorb shock.

[0043] Reference Figure 5 and Figure 9 The opening and closing assembly 6 includes a second hydraulic cylinder 601, and the piston rod of the second hydraulic cylinder 601 is fixedly connected to a second baffle 602.

[0044] In this embodiment, it should be specifically noted that the second hydraulic cylinder 601 is existing technology, and the specific structure and connection method of the second hydraulic cylinder 601 will not be described in detail in this embodiment.

[0045] Reference Figure 1 , Figure 2 and Figure 7 The moving component 7 includes a third motor 701, which is fixedly connected to the upper surface of the ventilation duct assembly 8. A gear 702 is fixedly connected to the shaft of the third motor 701. A rack 703 is meshed with the bottom of the gear 702. A first T-block 704 is fixedly connected to the bottom of the rack 703. The first T-block 704 is slidably connected to the ventilation duct assembly 8.

[0046] In this embodiment, it should be specifically explained that when the third motor 701 is started, the third motor 701 drives the gear 702 to rotate, and the gear 702 drives the rack 703 and the filter plate replacement assembly 9 to move towards the blower 14.

[0047] Reference Figure 1 , Figure 2 , Figure 5 and Figure 7 The ventilation duct assembly 8 includes a ventilation duct body 801. A first through groove 802 runs through the upper and lower surfaces of the ventilation duct body 801. A sealing groove 803 is provided at the bottom of the first through groove 802. A filter plate recycling box 804 is installed at the bottom of the ventilation duct body 801. The filter plate recycling box 804 is located inside the second clearance groove 103. A symmetrical second T-shaped groove 805 is provided on the upper surface of the ventilation duct body 801. A filter plate component 17 is slidably connected inside the first through groove 802.

[0048] In this embodiment, it should be specifically noted that: the slanted filter plate 17 is used for filtration because the slanted design makes it easier for metal dust to accumulate at the bottom of the filter surface of the filter plate 17, making it easier to clean.

[0049] Reference Figure 1 , Figure 2 , Figure 5 and Figure 7 The filter plate replacement assembly 9 includes a movable box 901. The upper surface of the movable box 901 has multiple second through inclined grooves 902. The inclination of the second through inclined grooves 902 is the same as that of the first through inclined groove 802. The filter plate component 17 is slidably connected inside the second through inclined groove 902. The bottom of the movable box 901 is fixedly connected to a symmetrical second T-shaped block 903. The second T-shaped block 903 is slidably connected to the second T-shaped groove 805.

[0050] In this embodiment, it should be specifically explained that when the second through groove 902 containing the filter plate 17 is aligned with the first through groove 802, the filter plate 17 falls into the first through groove 802 under the action of gravity and is blocked by the second baffle 602 and stays inside the first through groove 802.

[0051] Working principle of the invention:

[0052] The main problem solved by this embodiment is that the friction generated between the inflated airbag 209 and the inside of the steel pipe 16 to be cut makes the steel pipe 16 to be cut relatively fixed to the airbag 209, thereby realizing the back-and-forth movement of the steel pipe 16 to be cut relative to the mobile cutting machine 13, thus exposing the defective parts of the steel pipe 16 to be cut for easy cutting by the mobile cutting machine 13, and using the gravity of the filter plate 17 itself to realize the replacement of the filter plate 17.

[0053] The specific steps are as follows:

[0054] First, the rotating roller 403 is started, which drives the conveyor belt 404 to move. The conveyor belt 404, through the first baffle 405, moves the steel pipe 16 to be cut towards the moving rotating component 2 until the single steel pipe 16 closest to the moving rotating component 2 falls between the two fixed clamping plates 2010 under the action of the first baffle 405 and gravity. At this time, the first motor 201 is started, and the rotating shaft of the first motor 201 drives the screw 202 to rotate. The triangular moving block 206 moves towards the steel pipe 16 to be cut under the action of the screw drive connection until the second motor 208 and the airbag 209 are completely inside the steel pipe 16 to be cut and the protrusion 207 contacts the steel pipe 16 to be cut and continuously pushes the steel pipe 16 forward. At this time, the airbag 209 begins to inflate and makes complete contact with the inner wall of the steel pipe 16 to be cut until... The steel pipe 16 to be cut is fixed together with the airbag 209. At this time, the second motor 208 is started, which drives the airbag 209 to rotate, and the steel pipe 16 to be cut also rotates. In this way, the steel pipe 16 to be cut moves forward while rotating. When the steel pipe 16 to be cut enters the vicinity of the vision inspection component 10, the vision inspection component 10 continuously inspects the entire surface of the rotating steel pipe 16 to determine whether the defective parts of the steel pipe 16 need to be cut. When the entire section of the steel pipe 16 to be cut is completely inside the clamping component 3, and the front end of the steel pipe 16 to be cut is located below the moving cutting machine 13, the vision inspection component 10 has completed the inspection of the steel pipe 16 to be cut. If the middle part of the steel pipe 16 to be cut does not need to be cut, only the front end of the steel pipe 16 needs to be cut. Then, the pressure cylinder 11 close to the moving cutting machine 13 is activated.Pressure cylinder 11 fixes the steel pipe 16 to be cut. The mobile cutting machine 13 cuts the front end of the steel pipe 16. The cut part falls onto the support plate 503, where the vibration is reduced by the spring 502. If the middle of the steel pipe 16 needs to be cut, the mechanical gripper 12 is activated, and the mobile cutting machine 13 moves to the tail position of the clamping component 3 near the mobile rotating component 2. The first motor 201 reverses, and the airbag 209 drives the steel pipe 16 to move back until the tail of the part to be cut of the steel pipe 16 is under the cutter of the mobile cutting machine 13 and cuts the steel pipe 16 into two sections. The end to be cut is on the clamping component 3 near the mobile rotating component 2, and the flawless section is on the clamping component 3 away from the mobile rotating component 2. After cutting, the first motor 201 rotates forward, and the airbag 209 drives the steel pipe 16 to move forward until the tail of the part to be cut of the steel pipe 16 is under the cutter of the mobile cutting machine 13 and cuts the steel pipe 16 into two sections. The end to be cut is on the clamping component 3 near the mobile rotating component 2, and the flawless section is on the clamping component 3 away from the mobile rotating component 2. After cutting, the first motor 201 rotates forward, and the airbag 209 drives the steel pipe 16 to move forward until the tail of the part to be cut of the steel pipe 16 is under the cutter of the mobile rotating component 2 and cuts the steel pipe 16 into two sections. The front end of the cutting section is located under the cutter of the mobile cutting machine 13 and cuts the steel pipe 16 to be cut. The cut-off part falls into the waste box 501. Then, the airbag 209 contracts, and the airbag 209 is released from the steel pipe 16 to be cut. The triangular moving block 206 continues to move forward and pushes the flawless section completely onto the clamping assembly 3 near the moving rotating assembly 2 through the protrusion 207. At this time, the mechanical claw 12 is activated to clamp the flawless section on the two clamping assemblies 3 into the next process. If the flawed section on the steel pipe 16 to be cut is too long, it does not need to be cut and is directly scrapped. At this time, the triangular moving block 206 continues to move forward and pushes the steel pipe 16 to be cut completely onto the clamping assembly 3 through the protrusion 207, detaching it from the position of the moving rotating assembly 2. The first hydraulic cylinder 301 is activated, the piston rods of each first hydraulic cylinder 301 contract, and the angle between the rotating clamping plates 302 opens until the steel pipe 16 to be cut falls onto the support plate 503 under the action of gravity.

[0055] When the mobile cutting machine 13 cuts the steel pipe 16, the nearest blower 14 starts, driving the metal dust generated by the mobile cutting machine 13 into the ventilation duct 801. After being filtered by the filter plate 17, the metal dust falls onto the inclined filter plate 17. The filtered air is discharged from the rear of the ventilation duct 801. When the filtering effect of the filter plate 17 becomes ineffective after repeated filtration, the flow meters 18 before and after the filter plate 17 sense a decrease in flow rate to a certain level. At this time, the second hydraulic cylinder 601 is activated. The piston rod of the second hydraulic cylinder 601 drives the second baffle 602 to retract, and the bottom of the first through inclined groove 802 is opened. The filter plate 17 inside the ventilation duct 801 falls into the filter plate recovery box 804 under the action of gravity. At this time, the piston rod of the second cylinder 601 drives the second baffle 602 to close the bottom of the first through inclined groove 802, and starts the third motor 701. The third motor 701 drives the gear 702 to rotate. The gear 702 drives the rack 703 and the filter plate replacement assembly 9 to move towards the blower 14. When the second through inclined groove 902 containing the filter plate 17 is aligned with the first through inclined groove 802, the filter plate 17 falls into the first through inclined groove 802 under the action of gravity and is blocked by the second baffle 602 and stays inside the first through inclined groove 802.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A seamless tube end cutting device comprising a base (1), characterized in that: A movable rotating assembly (2) is installed above the base (1). A vision inspection assembly (10) is provided behind the movable rotating assembly (2). Two clamping assemblies (3) are provided behind the vision inspection assembly (10). A movable cutting machine (13) is provided on one side of the clamping assembly (3). A pressure cylinder (11) is installed above the clamping assembly (3). A steel pipe (16) to be cut is provided inside the movable rotating assembly (2). The moving and rotating assembly (2) includes a first motor (201), a screw (202) fixedly connected to the shaft of the first motor (201), a first bracket (203) rotatably connected to both ends of the screw (202), a triangular moving block (206) helically connected to the outer side of the screw (202), a fixed clamping plate (2010) slidably connected to the outer side of the triangular moving block (206), the bottom of the fixed clamping plate (2010) being fixedly connected to the base (1), a guide rod (204) slidably connected inside the triangular moving block (206), and a second bracket (205) rotatably connected to both ends of the guide rod (204). The bottom of the triangular moving block (206) is fixedly connected to the fixed clamping plate (2010). A protruding block (207) is fixedly connected to the side of the triangular moving block (206) near the clamping assembly (3). The size of the protruding block (207) is sufficient to push the steel pipe (16) to be cut to move. The protruding block (207) is located between the screw (202) and the guide rod (204). The front end of the protruding block (207) is fixedly connected to the housing of the second motor (208). The shaft of the second motor (208) is fixedly connected to the air bag (209). The second motor (208), the air bag (209) and the steel pipe (16) to be cut are concentric and their size is smaller than that of the steel pipe (16). The base (1) includes a base plate (101), the top of which is provided with a first clearance groove (102) and a second clearance groove (103). A feeding component (4) is provided on one side of the moving and rotating assembly (2). A waste recycling component (5) is provided below the clamping assembly (3), and the waste recycling component (5) is located inside the first clearance groove (102). Two ventilation pipe assemblies (8) are provided on the rear side of the clamping assembly (3). An opening and closing component (6) is installed inside the ventilation pipe assembly (8). A filter plate replacement component (9) is installed above the ventilation pipe assembly (8). The filter plate replacement component (9) and the ventilation pipe assembly (8) are connected. A movable component (7) is connected between the two parts. A mechanical claw (12) is provided on the outside of the movable cutting machine (13). A blower (14) is provided inside the ventilation pipe assembly (8). A support block (15) is fixed above the base plate (101). A pressure cylinder (11) is fixed below the support block (15). A filter plate component (17) is slidably connected inside the filter plate replacement assembly (9). A filter plate component (17) is installed inside the ventilation pipe assembly (8). Two flow meters (18) are installed inside the ventilation pipe assembly (8). The flow meters (18) are located on the front and rear sides of the filter plate component (17) inside the ventilation pipe assembly (8). The moving component (7) includes a third motor (701), which is fixedly connected to the upper surface of the ventilation pipe assembly (8). The shaft of the third motor (701) is fixedly connected to a gear (702), and the bottom of the gear (702) is meshed with a rack (703). The bottom of the rack (703) is fixedly connected to a first T-block (704), and the first T-block (704) is slidably connected to the ventilation pipe assembly (8). The ventilation duct assembly (8) includes a ventilation duct body (801), with a first through groove (802) running through the upper and lower surfaces of the ventilation duct body (801). A sealing groove (803) is provided at the bottom of the first through groove (802). A filter plate recycling box (804) is installed at the bottom of the ventilation duct body (801). The filter plate recycling box (804) is located inside the second clearance groove (103). A symmetrical second T-shaped groove (805) is provided on the upper surface of the ventilation duct body (801). A filter plate component (17) is slidably connected inside the first through groove (802). The filter plate replacement assembly (9) includes a movable box (901). The upper surface of the movable box (901) is provided with a plurality of second through grooves (902). The slope of the second through grooves (902) is the same as that of the first through groove (802). A filter plate component (17) is slidably connected inside the second through groove (902). A symmetrical second T-shaped block (903) is fixedly connected to the bottom of the movable box (901). The second T-shaped block (903) is slidably connected to the second T-shaped groove (805).

2. A seamless tube end cutting apparatus according to claim 1, characterized in that: The clamping assembly (3) includes a first hydraulic cylinder (301), the cylinder body of the first hydraulic cylinder (301) is fixedly connected to the base plate (101), the top end of the piston rod of the first hydraulic cylinder (301) is connected to a rotating clamping plate (302), the upper corner of the rotating clamping plate (302) is fixedly connected to a connecting rod (303), the two ends of the connecting rod (303) are rotatably connected to a third bracket (304), and the bottom of the third bracket (304) is fixedly connected to the base plate (101).

3. A seamless tube end cutting apparatus according to claim 1, characterized in that: The feeding assembly (4) includes a feeding box (406), with a notch at the bottom. A conveyor belt (404) is installed at the notch of the feeding box (406). The conveyor belt (404) has first baffles (405) on its surface. The spacing between the first baffles (405) is greater than or equal to the outer diameter of the steel pipe (16) to be cut, making it easy to arrange the steel pipe (16). The width of the inner wall of the feeding box (406) is equal to the length of the steel pipe (16) to be cut, and the height of the inner wall of the feeding box (406) is equal to the outer diameter of the steel pipe (16) to guide the movement of the steel pipe (16). Rotating rollers (403) are movably connected inside the two ends of the conveyor belt (404), and rotating rods (402) are fixedly connected inside the rotating rollers (403). The two ends of the rotating rod (402) are rotatably connected to the fourth bracket (401). The bottom of the fourth bracket (401) is fixedly connected to the base plate (101). The feeding box (406) has a discharge port (407) on one side. The discharge port (407) is located above the fixed clamping plate (2010) so that the steel pipe (16) to be cut can fall directly between the two fixed clamping plates (2010) after leaving the discharge port (407). The feeding box (406) has a feeding port (408) above it. The feeding port (408) is directly opposite the last and second to last first baffle (405) on the upper plane of the conveyor belt (404). The length of the feeding port (408) is the same as the length of the steel pipe (16) to be cut. The width of the feeding port (408) is the same as the outer diameter of the steel pipe (16) to be cut.

4. A seamless tube end cutting apparatus according to claim 1, characterized in that: The waste recycling component (5) includes a waste box (501), which is located inside the first clearance groove (102). The length of the waste box (501) is greater than the length of the steel pipe (16) to be cut, so that the steel pipe (16) to be cut can fall into the waste box (501) in its entirety. A support plate (503) is slidably connected inside the waste box (501). A spring (502) is installed between the support plate (503) and the waste box (501). The two ends of the spring (502) abut against the bottom of the support plate (503) and the waste box (501) respectively.

5. A seamless tube end cutting apparatus according to claim 1, characterized in that: The opening and closing assembly (6) includes a second hydraulic cylinder (601), and the piston rod of the second hydraulic cylinder (601) is fixedly connected to a second baffle (602).

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