Cutting device and cutting method for engine piping machining

Abstract

This invention relates to the field of cutting device technology, and discloses a cutting device and method for processing engine pipes. The cutting device for processing engine pipes includes a cutting table, a cutting mechanism, a magnetic particle injection mechanism, an electromagnetic adsorption mechanism, and multiple limiting elements. The cutting mechanism, the magnetic particle injection mechanism, and the multiple limiting elements are all arranged above the cutting table. The magnetic particle injection mechanism includes a feeding cylinder, a discharge port, and a sealing plate. This invention achieves adaptive filling and support inside hollow pipes through the coordinated arrangement of the magnetic particle injection mechanism and the electromagnetic adsorption mechanism. The electromagnetic adsorption effect causes the magnetic particles to form a sealing structure at a designated position inside the pipe, and densely fills the inner cavity of the pipe in the cutting area, providing all-round support for the inner wall of the pipe, effectively offsetting the shear stress on the pipe during the cutting process, avoiding minor deformation during pipe cutting, and ensuring the flatness of the pipe cutting end face and the overall dimensional accuracy.

Description

Technical Field

[0001] This invention relates to the field of cutting device technology, specifically a cutting device and method for processing engine pipes. Background Technology

[0002] Engine piping is a core component of power equipment in aviation, automotive, and construction machinery. It primarily consists of irregularly shaped metal tubing, and its dimensional accuracy and cross-sectional integrity directly affect the engine's assembly precision and operational stability. In the batch processing of piping, the cutting process is a crucial step. The flatness and dimensional accuracy of the cut pipe end faces are key indicators for controlling product quality. Because engine piping is mostly a hollow, thin-walled structure with relatively poor rigidity, it is highly susceptible to deformation during cutting due to the cutting force. Therefore, stringent requirements are placed on the auxiliary support, limiting and fixing of the cutting device, and the cutting precision.

[0003] Currently, most engine pipe cutting in the industry is done using traditional pipe cutting machines. The process relies primarily on external clamps and support fixtures to hold and fix the pipe, while a high-speed rotating cutting wheel directly cuts the pipe wall. For some easily deformable thin-walled irregularly shaped pipes, existing technologies mainly improve the stability of the pipe cutting process by optimizing the external clamping structure and increasing external support points, thereby reducing deformation problems.

[0004] However, existing cutting and processing methods still have certain shortcomings in practical applications. Relying solely on external clamping and support structures cannot provide effective support for the interior of hollow pipes. When the pipes are cut under stress, they are still prone to slight deformation, leading to quality problems such as uneven pipe end faces and dimensional deviations, which significantly reduces cutting accuracy. Some devices use the method of inserting support structures into the pipe to provide auxiliary support for the inner wall, but for some irregularly shaped pipes, conventional support structures are difficult to insert and cannot provide effective support. This cannot meet the high-precision processing requirements of engine pipes, and there is still considerable room for improvement in processing applicability and processing quality.

[0005] Therefore, it is necessary to provide a cutting device and cutting method for processing engine pipes to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a cutting device and method for processing engine pipes. By adopting a granular flexible internal support structure to replace the traditional fixed internal rigid support structure, it can adapt to the internal support requirements of various irregularly shaped engine pipes and is not limited by the irregular internal cavity structure of the pipes.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a cutting device for processing engine pipelines, comprising a cutting table, a cutting mechanism, a magnetic particle injection mechanism, an electromagnetic adsorption mechanism, and multiple limiting elements. The cutting mechanism, the magnetic particle injection mechanism, and the multiple limiting elements are all disposed above the cutting table. The magnetic particle injection mechanism includes a feeding cylinder, a discharge port, and a sealing disc. The discharge port is disposed at one end of the feeding cylinder near the cutting mechanism and is connected to the feeding cylinder. The sealing disc is sleeved on the discharge port. The limiting elements, the electromagnetic adsorption mechanism, the sealing disc, and the discharge port are located on the same straight line. A recycling frame is disposed on the cutting table, and the magnetic particle injection mechanism is disposed directly above the recycling frame.

[0008] A further configuration of the present invention is as follows: a feeding screw is rotatably arranged inside the feeding cylinder; a motor four is fixedly installed at one end of the feeding cylinder away from the discharge port; the output end of the motor four is fixedly connected to the end of the feeding screw; and a storage box is fixedly arranged on the top of the feeding cylinder near the motor four, and the storage box is connected to the feeding cylinder.

[0009] A further feature of the present invention is that the sealing disc slides with the discharge port, and the sealing disc is elastically connected to the end wall of the conveying cylinder via a spring. A positioning ring is fitted on the discharge port, and the positioning ring is fixedly connected to the discharge port.

[0010] A further configuration of the present invention is as follows: the cutting mechanism includes a mounting base, a motor, and a cutting wheel. The motor is fixedly mounted on the mounting base, and the cutting wheel is connected to the output end of the motor. A lifting drive mechanism for driving the mounting base to rise and fall is provided on the cutting table.

[0011] A further feature of the present invention is that the limiting element includes a limiting ring, a plurality of balls are embedded in the inner side of the limiting ring, and a support base is fixedly connected to the bottom of the limiting ring, and the support base is fixedly connected to the cutting table by bolts.

[0012] A further provision of the present invention is that the recycling frame extends through the cutting table, a hopper is connected to the bottom of the recycling frame, and an isolation fence is fixedly installed on the inner side of the recycling frame.

[0013] A further configuration of the present invention is as follows: a recycling box is fixedly mounted on the cutting table, the cutting wheel is located directly above the recycling box, a support base two is fixedly mounted on the cutting table by bolts, an arc-shaped support plate is fixedly mounted on the top of the support base two, a plurality of ball bearings two are embedded in the inner side of the arc-shaped support plate, the arc-shaped support plate and the electromagnetic adsorption mechanism are respectively located on both sides of the recycling box, and a fixing component is provided on one side of the mounting base one.

[0014] A further embodiment of the present invention is that the fixing component includes a connecting plate, an elastic connector, and an arc-shaped pressure plate, the arc-shaped pressure plate being located directly above the arc-shaped support plate, the connecting plate being fixedly connected to the mounting base, and the arc-shaped pressure plate being elastically connected to the connecting plate through the elastic connector.

[0015] A further configuration of the present invention is as follows: the electromagnetic adsorption mechanism includes a support base three, a support cylinder fixedly installed on the support base three, and a plurality of electromagnets disposed inside the support cylinder. A plurality of adjusting screws are threadedly installed on the support cylinder. One end of the adjusting screw is rotatably connected to the electromagnet, and the other end of the adjusting screw is fixedly installed with a knob. Two adjacent electromagnets are connected by an elastic connecting plate, which has a V-shaped structure.

[0016] The present invention also discloses a method for cutting engine pipes, using the aforementioned cutting device for engine pipe processing, comprising the following steps: S1. The pipe to be cut is fixed and limited by multiple limiting elements, so that the pipe is fixed on the cutting table. At this time, the end of the pipe is in contact with the sealing plate, and the discharge port of the magnetic particle injection mechanism extends into the pipe. S2. Activate the electromagnetic adsorption mechanism, and then inject magnetic particles into the pipeline through the magnetic particle injection mechanism. The magnetic particles gradually fill the pipeline. When the magnetic particles fill to the point of approaching the electromagnetic adsorption mechanism, they are stopped by the magnetic attraction force and cannot continue to move forward, thus forming a blockage structure at that point until the part of the pipeline between the blockage structure and the outlet is filled with magnetic particles. S3. The pipeline is cut using a cutting mechanism.

[0017] In summary, the present invention has the following beneficial effects: By combining a magnetic particle injection mechanism with an electromagnetic adsorption mechanism, the present invention achieves adaptive filling and support inside hollow pipes. Utilizing electromagnetic adsorption, the magnetic particles form a sealing structure at a designated location inside the pipe, densely filling the pipe cavity in the cutting area. This provides comprehensive support to the pipe's inner wall, effectively offsetting the shear stress experienced during cutting, preventing minor deformations during pipe cutting, ensuring the flatness of the pipe's cut end face and overall dimensional accuracy, and effectively improving the cutting quality of engine pipes. Furthermore, by adopting a granular flexible internal support structure instead of the traditional fixed rigid internal support structure, it can adapt to the internal support requirements of various irregularly shaped engine pipes, without being limited by the irregular internal cavity structure of the pipe. It can smoothly complete the internal filling and support operation of the pipe, solving the technical problem that traditional support structures cannot adapt to the processing of irregularly shaped pipes. This greatly expands the applicability of the cutting device and can meet the high-precision batch processing needs of multiple types and specifications of engine pipes. Attached Figure Description

[0018] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of the present invention; Figure 3 This is a schematic diagram of the lifting drive mechanism and the cutting mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the limiting element of the present invention; Figure 5 This is a schematic diagram of the structure of the recycling frame and the isolation fence of the present invention; Figure 6 This is a schematic diagram of the translation mechanism and the magnetic particle injection mechanism of the present invention; Figure 7 This is a partial cross-sectional view of the conveying cylinder of the present invention; Figure 8 This is a side view of the electromagnetic adsorption mechanism of the present invention. Figure 9 This is a cross-sectional view of the fixing component of the present invention; Figure 10 This is a schematic diagram of the arc-shaped support plate and the second support base of the present invention.

[0019] In the diagram: 1. Cutting table; 2. Lifting drive mechanism; 201. Guide rail one; 202. Screw one; 203. Motor one; 204. Slide one; 3. Cutting mechanism; 301. Mounting base one; 302. Cutting wheel; 303. Motor three; 4. Translation mechanism; 401. Guide rail two; 402. Screw two; 403. Motor two; 404. Slide two; 5. Magnetic particle injection mechanism; 501. Mounting base two; 502. Feeding cylinder; 503. Storage box; 504. Motor four; 505. Feeding screw; 506. Discharge port; 507. Sealing plate; 50 8. Spring 1; 509. Positioning ring; 6. Electromagnetic adsorption mechanism; 601. Support cylinder; 602. Electromagnet; 603. Adjusting screw; 604. Knob; 605. Support base 3; 606. Elastic connecting plate; 7. Fixing assembly; 701. Connecting plate; 702. Connecting cylinder; 703. Sliding column; 704. Spring 2; 705. Arc-shaped pressure plate; 8. Support base 1; 9. Limiting ring; 10. Ball bearing 1; 11. Recycling frame; 12. Discharge hopper; 13. Isolation fence; 14. Recycling box; 15. Arc-shaped support plate; 16. Ball bearing 2; 17. Support base 2. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] Please see Figures 1 to 7In this embodiment of the invention, a cutting device for processing engine pipes includes a cutting table 1, a cutting mechanism 3, a magnetic particle injection mechanism 5, an electromagnetic adsorption mechanism 6, and multiple limiting elements. The cutting mechanism 3, the magnetic particle injection mechanism 5, and the multiple limiting elements are all disposed above the cutting table 1. The magnetic particle injection mechanism 5 includes a feeding cylinder 502, a discharge port 506, and a sealing disc 507. The discharge port 506 is disposed at one end of the feeding cylinder 502 near the cutting mechanism 3, and the discharge port 506 is connected to... The feeding cylinders 502 are connected, and the sealing disc 507 is sleeved on the discharge port 506. The limiting element, the electromagnetic adsorption mechanism 6, the sealing disc 507, and the discharge port 506 are located on the same straight line. A recycling frame 11 is provided on the cutting table 1, and the magnetic particle injection mechanism 5 is located directly above the recycling frame 11. The limiting element is used to limit or fix the pipeline to be cut, and can be a pipeline clamp, fixing fixture, etc. The feeding cylinder 502 is filled with magnetic particles, which are iron particles that can be attracted by magnets. The pipe can be spherical or polyhedral in shape, with a radius of 0.5mm-2mm. During processing, multiple limiting elements are used to fix and limit the pipe to be cut, so that the pipe is fixed on the cutting table 1. At this time, the end of the pipe is in contact with the sealing plate 507. The discharge port 506 of the magnetic particle injection mechanism 5 extends into the pipe and the electromagnetic adsorption mechanism 6 is activated. Then, magnetic particles are injected into the pipe through the magnetic particle injection mechanism 5. The magnetic particles gradually fill the pipe. When the magnetic particles fill to near the electromagnetic adsorption mechanism 6, they are stopped by the magnetic attraction and cannot move forward, thus forming a sealing structure at this point. This continues until the part of the pipe between the sealing structure and the discharge port 506 is filled with magnetic particles. Then, the pipe is cut by the cutting mechanism 3. By filling the pipe with magnetic particles before cutting, it is possible to avoid small deformations when the pipe is cut under force, which effectively improves the cutting quality. Moreover, the method of filling with magnetic particles can be used as an auxiliary support for various irregular pipes.

[0022] In this embodiment, preferably, a feeding screw 505 is rotatably installed inside the feeding cylinder 502. A motor 504 is fixedly installed at one end of the feeding cylinder 502 away from the discharge port 506. The output end of the motor 504 is fixedly connected to the end of the feeding screw 505. A storage box 503 is fixedly installed on the top of the feeding cylinder 502 near the motor 504. The storage box 503 is connected to the feeding cylinder 502. In use, magnetic particles are injected into the storage box 503. The magnetic particles in the storage box 503 enter the feeding cylinder 502. The motor 504 drives the feeding screw 505 to rotate. When the feeding screw 505 rotates, it conveys the magnetic particles in the feeding cylinder 502, so that the magnetic particles are pushed out through the discharge port 506 and input into the metal pipe to be cut.

[0023] In this embodiment, preferably, the sealing disc 507 is slidably engaged with the discharge port 506, and the sealing disc 507 is elastically connected to the end wall of the conveying cylinder 502 via a spring 508. A positioning ring 509 is fitted onto the discharge port 506, and the positioning ring 509 is fixedly connected to the discharge port 506. When fixing the pipe, after passing through the limiting element, the pipe moves toward the conveying cylinder 502, so that the end of the pipe contacts the sealing disc 507, gradually pushing the sealing disc 507 to move and compress the spring 508 until it is sealed. When the sealing disc 507 contacts the positioning ring 509, the axial position of the magnetic particle injection mechanism 5 is adjusted so that when the sealing disc 507 contacts the positioning ring 509, the distance between the sealing disc 507 and the cutting position of the cutting wheel 302 is the required cutting length of the pipe. This allows for positioning of the pipe cutting length without the need for separate pipe measurement, thus improving cutting efficiency. The sealing disc 507 also seals the gap between one end opening of the pipe and the discharge port 506, ensuring accurate injection of the magnetic particles.

[0024] In this embodiment, preferably, the cutting mechanism 3 includes a mounting base 301, a motor 303, and a cutting wheel 302. The motor 303 is fixedly mounted on the mounting base 301, and the cutting wheel 302 is connected to the output end of the motor 303. The cutting table 1 is provided with a lifting drive mechanism 2 for driving the mounting base 301 to rise and fall. The motor 303 can drive the cutting wheel 302 to rotate, so as to cut the metal pipe. The lifting drive mechanism 2 includes a guide rail 201, a screw 202 rotatably mounted on the inner side of the guide rail 201, a slide block 204 slidably mounted on the inner side of the guide rail 201, and a screw fixedly mounted on the top of the guide rail 201. Motor 203 and guide rail 201 are fixedly mounted on cutting table 1 and are perpendicular to each other. The output end of motor 203 is fixedly connected to the top end of screw 202. Screw 202 passes through slide 204 and is threadedly connected to slide 204. Mounting base 301 is fixedly connected to slide 204. Motor 203 can drive screw 202 to rotate. When screw 202 rotates, it drives slide 204 to rise and fall, which in turn drives mounting base 301 to rise and fall, thereby realizing the lifting and lowering of cutting mechanism 3. This allows cutting wheel 302 to move downward to cut metal pipes.

[0025] In this embodiment, preferably, the limiting element includes a limiting ring 9, with multiple ball bearings 10 embedded in the inner side of the limiting ring 9. A support seat 8 is fixedly connected to the bottom of the limiting ring 9, and the support seat 8 is fixedly connected to the cutting table 1 by bolts. During processing, the pipe to be cut passes through the limiting ring 9, and the multiple ball bearings 10 on the inner side of the limiting ring 9 contact the outer peripheral wall of the pipe to limit the pipe. The support seat 8 can be removed from the cutting table 1, so that the limiting ring 9 can be replaced. Various limiting rings 9 with different diameters can be configured to adapt to the cutting and limiting of pipes with different diameters.

[0026] In this embodiment, preferably, the cutting table 1 is provided with a translation mechanism 4. The translation mechanism 4 is used to drive the magnetic particle injection mechanism 5 to move axially. The translation mechanism 4 includes a second guide rail 401, a second screw 402 rotatably mounted on the inner side of the second guide rail 401, a second slide block 404 slidably mounted on the inner side of the second guide rail 401, and a second motor 403 fixedly mounted on the end of the second guide rail 401. The second guide rail 401 is horizontally fixedly mounted on the cutting table 1. The output end of the second motor 403 is fixedly connected to the end of the second screw 402. The second screw 402 passes through the second slide block 404, and the second screw 402 and the second slide block 404 are connected. 04 Fixed connection: A mounting base 501 is fixedly installed on the slide block 404, and the feeding cylinder 502 is fixedly connected to the mounting base 501. The screw 402 can be driven to rotate by the motor 403. When the screw 402 rotates, it drives the slide block 404 to move horizontally, which in turn drives the magnetic particle injection mechanism 5 to move axially through the mounting base 501. This allows the axial position of the magnetic particle injection mechanism 5 to be adjusted to adapt to different cutting lengths. The motor 403 is a servo motor, which can accurately control the position of the feeding cylinder 502. An optical measurement module can be set to determine the position of the feeding cylinder 502.

[0027] In this embodiment, preferably, the recycling frame 11 passes through the cutting table 1, and the bottom of the recycling frame 11 is connected to the feeding hopper 12. An isolation grid 13 is fixedly installed on the inner side of the recycling frame 11. After cutting, the conveying cylinder 502 is driven to move away from the cutting mechanism 3 by the translation mechanism 4, so that the cut pipe is separated from the discharge port 506 (with the elastic action of the spring 508, the pipe can be pushed to move by the sealing plate 507 to separate the pipe from the discharge port 506). The separated pipe falls into the recycling frame 11 at an angle, so that the magnetic particles in the pipe slide out and fall into the recycling frame 11, and pass through the isolation grid 13 and fall down into the feeding hopper 12. The receiving container is set below the feeding hopper 12 to receive the magnetic particles. The isolation grid 13 is set so that the pipe falling into the recycling frame 11 is blocked and will not fall into the feeding hopper 12.

[0028] Please see Figure 1 and Figures 8-10In this embodiment of the invention, a recycling box 14 is fixedly mounted on the cutting table 1, and the cutting wheel 302 is located directly above the recycling box 14. During cutting, the pipeline passes through the recycling box 14, and the cutting wheel 302 extends into the recycling box 14 to cut the pipeline. A support base 17 is fixedly mounted on the cutting table 1 by bolts. An arc-shaped support plate 15 is fixedly mounted on the top of the support base 17. Multiple ball bearings 16 are embedded in the inner side of the arc-shaped support plate 15. The arc-shaped support plate 15 and the electromagnetic adsorption mechanism 6 are located on both sides of the recycling box 14, respectively. A fixing component 7 is provided on one side of the mounting base 301. The fixing component 7, together with the arc-shaped support plate 15, fixes the pipeline. The debris generated during cutting falls into the recycling box 14. It should be noted that the debris generated during cutting and the falling magnetic particles in the recycling box 14 can be separated by magnetic attraction. The pipeline being cut is a non-magnetic pipeline such as copper, so as to avoid the debris generated during cutting and the falling magnetic particles being difficult to separate. The magnetic particles falling into the recycling box 11 contain less debris and can be directly transferred to the storage box 503 for recycling.

[0029] In this embodiment, preferably, the fixing component 7 includes a connecting plate 701, an elastic connector, and an arc-shaped pressure plate 705. The arc-shaped pressure plate 705 is located directly above the arc-shaped support plate 15. The connecting plate 701 is fixedly connected to the mounting base 301, and the arc-shaped pressure plate 705 is elastically connected to the connecting plate 701 through the elastic connector. The elastic connector includes a connecting cylinder 702, a sliding column 703, and a spring 704. The top end of the connecting cylinder 702 is fixedly connected to the connecting plate 701, and the bottom end of the sliding column 703 is fixedly connected to the arc-shaped support plate 15. The pressure plate 705 is fixedly connected, and the top end of the sliding column 703 extends into the connecting cylinder 702, with the sliding column 703 and the connecting cylinder 702 slidingly engaged. The top end of the sliding column 703 is elastically connected to the top wall of the connecting cylinder 702 via a second spring 704. When the mounting base 301 moves downward to drive the cutting mechanism 3 to cut the pipeline, as the mounting base 301 moves downward, the mounting base 301 drives the arc-shaped pressure plate 705 to move downward via the elastic connector. Before the cutting wheel 302 contacts the pipeline, the arc-shaped pressure plate 705 first contacts the pipeline. Contact is made with the anti-slip structure at the bottom of the arc-shaped pressure plate 705, pressing the pipeline between the arc-shaped pressure plate 705 and the arc-shaped support plate 15 to lock the pipeline. The sliding design of the sliding column 703, combined with the compression of the spring 704, ensures that the arc-shaped pressure plate 705 does not interfere with the continued downward movement of the cutting wheel 302. This embodiment allows the pipeline to be automatically fixed by the fixing component 7 before cutting, in conjunction with the downward movement of the cutting mechanism 3. After the pipeline is cut, as the cutting mechanism 3 moves upward, the arc-shaped pressure plate... As 705 gradually moves upward, the arc-shaped pressure plate 705 gradually separates from the pipeline, thus releasing the pipeline from its fixation. The pipeline is cut off at the position corresponding to the cutting wheel 302. Since the center of gravity of the pipeline is close to the side of the recycling frame 11, after the discharge port 506 separates from the pipeline, the end of the pipeline near the discharge port 506 tilts downward and rests on the isolation grid 13, causing the magnetic particles inside the pipeline to gradually slide into the recycling frame 11, so as to automatically recycle the magnetic particles inside the cut pipeline. Then the cut pipeline can be taken out.

[0030] In this embodiment, preferably, the electromagnetic adsorption mechanism 6 includes a support base 605, a support cylinder 601 fixedly mounted on the support base 605, and a plurality of electromagnets 602 disposed inside the support cylinder 601. A plurality of adjusting screws 603 are threaded onto the support cylinder 601. One end of each adjusting screw 603 is rotatably connected to an electromagnet 602, and the other end of each adjusting screw 603 is fixedly mounted with a knob 604. Adjacent electromagnets 602 are connected by an elastic connecting plate 606. The elastic connecting plate 606 has a V-shaped structure and is made of non-magnetic metal material. During processing, the tubing passes through the inside of the support cylinder 601. When the electromagnets 602 are activated, the mechanism can... The magnetic particles that fill the pipe are attracted and stop at the magnetic attraction position, thus forming a blockage and ensuring effective filling of the magnetic particles at the cutting position. The adjustment screw 603 can be rotated by the knob 604. When the adjustment screw 603 rotates, it can drive the electromagnet 602 to move, thereby adjusting the position of the electromagnet 602 to adapt to pipe cutting with different inner diameters. The elastic connecting plate 606 is set to form multiple electromagnets 602 into a whole. When the electromagnet 602 moves, the elastic connecting plate 606 adaptively adjusts the angle of the V-shape to limit the electromagnet 602, so that the rotation of the adjustment screw 603 will not drive the electromagnet 602 to rotate.

[0031] This invention also discloses a method for cutting engine pipes, comprising the following steps: S1. The pipe to be cut is fixed and limited by multiple limiting elements, so that the pipe is fixed on the cutting table 1. At this time, the end of the pipe is in contact with the sealing plate 507, and the discharge port 506 of the magnetic particle injection mechanism 5 extends into the pipe. S2. Activate the electromagnetic adsorption mechanism 6, and then inject magnetic particles into the pipeline through the magnetic particle injection mechanism 5. The magnetic particles gradually fill the pipeline. When the magnetic particles fill to the point of approaching the electromagnetic adsorption mechanism 6, they are stopped by the magnetic attraction force and cannot continue to move forward, thus forming a blockage structure at that point, until the part of the pipeline between the blockage structure and the discharge port 506 is filled with magnetic particles. S3. The pipeline is cut by the cutting mechanism 3.

[0032] Working principle: During operation, the limiting element on the cutting table 1 first limits the passage of the irregularly shaped pipe to be cut. The limiting ring 9 of the corresponding specification can be matched according to the pipe diameter. The inner ball bearing of the limiting ring 9 ensures the smooth sliding adjustment of the pipe. Then, the translation mechanism 4 drives the magnetic particle injection mechanism 5 to move axially. With the contact and cooperation between the sealing plate 507 and the positioning ring 509, the length of the pipe to be cut is accurately positioned. After the pipe is positioned, the end of the sealing plate 507 is attached to the sealing plate 507 to close the discharge port 506 and the pipe. During the gap, the electromagnetic adsorption mechanism 6 is activated, and then the motor 504 drives the feeding screw 505 to rotate, injecting the iron magnetic particles in the storage box 503 into the pipeline at a constant speed through the feeding cylinder 502 and the discharge port 506. Under the action of electromagnetic attraction, the magnetic particles stop at the designated position to form a sealing structure, so that the pipeline cavity between the sealing structure and the discharge port 506 is completely filled with magnetic particles. The particle filling forms all-round support for the inner wall of the pipeline, effectively avoiding the deformation problem caused by force during pipeline cutting.

[0033] After the pipeline is filled, the lifting drive mechanism 2 drives the cutting mechanism 3 to move down as a whole. As the cutting wheel 302 presses down, the arc-shaped pressure plate 705 of the fixing component 7 first adheres to the pipeline, and together with the arc-shaped support plate 15 below, the pipeline is locked and fixed for the second time. Relying on the elastic buffering effect of the second spring 704, the pressing structure is prevented from interfering with the cutting operation. Then, the high-speed rotating cutting wheel 302 completes the precise cutting of the pipeline. After the cutting operation is completed, the cutting mechanism 3 moves up to release the pipeline lock. The translation mechanism 4 drives the magnetic particle injection mechanism 5 to reset. The sealing plate 507 is pushed away from the end of the pipeline under the elastic force of the first spring 508. The cut pipeline tilts and falls into the recycling frame 11 due to the shift of the center of gravity. The magnetic particles inside the pipeline automatically slide down and are collected by the feeding hopper 12 after being screened by the isolation grid 13. They can be transferred to the storage box 503 for recycling. At the same time, the debris generated by the cutting of non-magnetic pipelines can be completely separated from the magnetic particles by magnetic attraction, which greatly reduces material loss and improves the overall processing efficiency and practicality of the device.

[0034] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included in the scope of this patent application.

Claims

1. A cutting device for processing engine pipes, comprising a cutting table (1), a cutting mechanism (3), a magnetic particle injection mechanism (5), an electromagnetic adsorption mechanism (6), and multiple limiting elements, wherein the cutting mechanism (3), the magnetic particle injection mechanism (5), and the multiple limiting elements are all disposed above the cutting table (1), characterized in that: The magnetic particle injection mechanism (5) includes a feeding cylinder (502), a discharge port (506), and a sealing plate (507). The discharge port (506) is located at one end of the feeding cylinder (502) near the cutting mechanism (3) and is connected to the feeding cylinder (502). The sealing plate (507) is sleeved on the discharge port (506). The limiting element, the electromagnetic adsorption mechanism (6), the sealing plate (507), and the discharge port (506) are located on the same straight line. A recycling frame (11) is provided on the cutting table (1), and the magnetic particle injection mechanism (5) is located directly above the recycling frame (11).

2. The cutting device for processing engine pipes according to claim 1, characterized in that: The feeding cylinder (502) is rotatably equipped with a feeding screw (505). A motor (504) is fixedly installed at one end of the feeding cylinder (502) away from the discharge port (506). The output end of the motor (504) is fixedly connected to the end of the feeding screw (505). A storage box (503) is fixedly installed on the top of the feeding cylinder (502) near the motor (504). The storage box (503) is connected to the feeding cylinder (502).

3. The cutting device for processing engine pipes according to claim 2, characterized in that: The sealing disc (507) is slidably fitted with the discharge port (506), and the sealing disc (507) is elastically connected to the end wall of the conveying cylinder (502) through a spring (508). A positioning ring (509) is fitted on the discharge port (506), and the positioning ring (509) is fixedly connected to the discharge port (506).

4. The cutting device for processing engine pipes according to claim 1, characterized in that: The cutting mechanism (3) includes a mounting base (301), a motor (303) and a cutting wheel (302). The motor (303) is fixedly mounted on the mounting base (301), and the cutting wheel (302) is connected to the output end of the motor (303). The cutting table (1) is provided with a lifting drive mechanism (2) for driving the mounting base (301) to rise and fall.

5. The cutting device for processing engine pipes according to claim 1, characterized in that: The limiting element includes a limiting ring (9), with multiple ball bearings (10) embedded in the inner side of the limiting ring (9), and a support seat (8) fixedly connected to the bottom of the limiting ring (9). The support seat (8) is fixedly connected to the cutting table (1) by bolts.

6. The cutting device for processing engine pipes according to claim 1, characterized in that: The recycling frame (11) passes through the cutting table (1), and a hopper (12) is connected to the bottom of the recycling frame (11). An isolation fence (13) is fixedly installed on the inner side of the recycling frame (11).

7. The cutting device for processing engine pipes according to claim 4, characterized in that: A recycling box (14) is fixedly installed on the cutting table (1). The cutting wheel (302) is located directly above the recycling box (14). A support seat (17) is fixedly installed on the cutting table (1) by bolts. An arc-shaped support plate (15) is fixedly installed on the top of the support seat (17). Multiple ball bearings (16) are embedded in the inner side of the arc-shaped support plate (15). The arc-shaped support plate (15) and the electromagnetic adsorption mechanism (6) are located on both sides of the recycling box (14). A fixing component (7) is provided on one side of the mounting seat (301).

8. The cutting device for processing engine pipes according to claim 7, characterized in that: The fixing component (7) includes a connecting plate (701), an elastic connector and an arc-shaped pressure plate (705). The arc-shaped pressure plate (705) is located directly above the arc-shaped support plate (15). The connecting plate (701) is fixedly connected to the mounting base (301). The arc-shaped pressure plate (705) is elastically connected to the connecting plate (701) through the elastic connector.

9. The cutting device for processing engine pipes according to claim 1, characterized in that: The electromagnetic adsorption mechanism (6) includes a support base three (605), a support cylinder (601) fixedly installed on the support base three (605), and a plurality of electromagnets (602) disposed inside the support cylinder (601). A plurality of adjusting screws (603) are threadedly installed on the support cylinder (601). One end of the adjusting screw (603) is rotatably connected to the electromagnet (602), and the other end of the adjusting screw (603) is fixedly installed with a knob (604). Two adjacent electromagnets (602) are connected by an elastic connecting plate (606), which has a V-shaped structure.

10. A method for cutting engine pipes, using the engine pipe processing cutting apparatus according to any one of claims 1-9, characterized in that, Includes the following steps: S1. The pipeline to be cut is fixed and limited by multiple limiting elements, so that the pipeline is fixed on the cutting table (1). At this time, the end of the pipeline is in contact with the sealing plate (507), and the discharge port (506) of the magnetic particle injection mechanism (5) extends into the pipeline. S2. Turn on the electromagnetic adsorption mechanism (6), and then inject magnetic particles into the pipeline through the magnetic particle injection mechanism (5). The magnetic particles gradually fill the pipeline. When the magnetic particles fill to near the electromagnetic adsorption mechanism (6), they are stopped by the magnetic attraction force and cannot continue to move forward, thus forming a blockage structure at that point until the part of the pipeline between the blockage structure and the outlet (506) is filled with magnetic particles. S3. The pipeline is cut by the cutting mechanism (3).

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