Slitting equipment for large-diameter pipe machining based on linear cutting

Abstract

The invention relates to the technical field of cutting devices, and discloses slitting equipment for large-diameter pipe machining based on linear cutting, which comprises a slitting machine, the slitting machine is sequentially provided with a discharging frame, a cutting frame and a feeding frame from left to right, a positioning part for limiting a pipe is arranged below the cutting frame, the positioning part comprises an upper positioning piece, and a lower positioning piece is arranged below the upper positioning piece. The side, close to the discharging frame, of the upper positioning piece is provided with a positioning frame for limiting the pipes in all directions, and the other end of the positioning frame is provided with a lower positioning piece. The positioning frame is arranged, in the linear cutting process of the pipe, uniform supporting force can be applied to the pipe from different positions through the multiple limiting supports of the positioning frame, machining stress is effectively counteracted, when the large-diameter thin-wall pipe is cut, the supports can prevent the pipe from deforming due to the gravity of the pipe and the cutting force, and the cutting quality of the large-diameter thin-wall pipe is improved. It is ensured that the size precision of the cut pipe meets the requirement, the flatness and smoothness of the cut surface of the pipe are improved, and the surface roughness of the pipe is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cutting devices, and in particular to a slitting device for processing large-diameter pipes based on wire cutting. Background Art

[0002] Wire cutting is based on the principle of electric spark discharge corrosion. Through pulsed spark discharge between the electrode wire and the pipe, instantaneous high temperature is generated, causing local metal in the pipe to melt or even vaporize, thereby realizing the process of etching the pipe material. Wire cutting consists of machine tool body, wire feeding system, pulse power supply, working fluid circulation system and CNC system.

[0003] In the later stage of cutting, the supporting structure of the pipe is gradually cut off as the pipe is cut off. The remaining part of the pipe has extremely uneven residual stress distribution due to its own weight or cutting force. It is easy to deform, bend or even break at the stress concentration point. The fracture incision is irregular and uneven in shape. When connecting with other components, it is difficult to accurately align with the docking components, resulting in gaps and misalignment at the connection position, affecting the accuracy and stability of the overall structure. For pipes that need to be connected with standard interfaces or other high-precision components, the fracture incision cannot meet the connection requirements, which may lead to inability to assemble, or require a lot of finishing and processing, increasing costs and time. If the pipe is placed on a platform, it may also damage the cutting equipment and even endanger the safety of the operator. Summary of the invention

[0004] Technical issues solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a slitting device for large-diameter pipe processing based on wire cutting, which can effectively solve the problem that after wire cutting in the prior art, the pipe is easily broken due to its own gravity and other reasons, and the broken incision causes the slitting pipe to fail to meet the connection requirements.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a slitting device for large-diameter pipe processing based on wire cutting, comprising a slitting machine, wherein the slitting machine is sequentially arranged from left to right as a material unloading rack, a cutting rack and a material loading rack, wherein the material loading rack comprises an outer limit member for transmitting the pipe, wherein an inner support member for supporting the inner wall of the pipe is arranged inside the outer limit member, wherein the cutting rack is used for cutting the pipe, wherein a positioning part for limiting the position of the pipe is arranged below the cutting rack, wherein the other end of the positioning part is located on the inner wall of the material unloading rack;

[0008] The positioning part includes an upper positioning piece arranged below the cutting frame, a positioning frame for all-round limiting of the pipe is arranged on one side of the upper positioning piece close to the unloading frame, a lower positioning piece is arranged at the other end of the positioning frame, the lower positioning piece is arranged on the inner wall of the unloading frame, the head end of the pipe is arranged on the inner wall of the outer limiting piece, and the tail end of the pipe passes through the upper positioning piece, the positioning frame and the lower positioning piece in sequence;

[0009] Wherein, the upper positioning member includes a pressure member for adjusting the connection structure state of the positioning frame.

[0010] Furthermore, the upper positioning member includes a positioning plate fixedly connected to the bottom of the cutting frame, a positioning ring is provided in the middle of the positioning plate, one side of the positioning ring is rotatably connected to a limiting ring, one side of the limiting ring is connected to one end of the positioning frame, and the pressure member is evenly arranged on the outer wall of the limiting ring.

[0011] Furthermore, the lower positioning member includes a second positioning plate fixedly connected to the bottom of the unloading rack, a second positioning ring is provided on the inner wall of the second positioning plate, one end of the second positioning ring close to the cutting rack is rotatably connected to a second limiting ring, and the outer side of the second limiting ring is connected to the other end of the positioning rack.

[0012] Furthermore, the positioning frame includes a positioning block 1 fixedly connected to the outer end of the limiting ring 1, the inner wall of the positioning block 1 is slidably connected to a connecting block, the other end of the connecting block is snap-connected to a positioning block 2, and the positioning block 2 is fixedly connected to the outer end of the limiting ring 2.

[0013] Furthermore, a fixing groove is provided in the middle of the bottom end of the positioning block 2 and the positioning block 1, and a top block is slidably connected to the inner wall of the fixing groove. One end of the top block located inside the positioning block 1 is fixedly connected to the connecting block, and one end of the top block located inside the positioning block 2 is wedge-fitted with the connecting block.

[0014] Furthermore, a spring member is elastically connected to the other end of the top block, and the top end of the top block adopts a trapezoidal design, and a top plate is attached to the top end of the top block.

[0015] Furthermore, the pressure member includes a sliding shaft slidably connected to an outer wall of the limiting ring, the bottom end of the sliding shaft is elastically connected to a telescopic spring, and the bottom end of the telescopic spring is provided with a pressure block.

[0016] Furthermore, the positioning frame also includes a fixed block fixedly connected to the positioning block at one end, and the inner wall of the fixed block is provided with an inclined block fixedly connected to the side of the top block, and the side of the inclined block is in contact with the bottom end of the pressing block.

[0017] Furthermore, a limiting groove slidably connected to the sliding shaft is formed on an inner wall of the positioning ring, and both ends of the limiting groove are designed with inclined surfaces.

[0018] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0019] The present invention is provided with a positioning frame. During the wire cutting process of the pipe, a uniform supporting force can be applied to the pipe from different positions through a plurality of limit supports of the positioning frame, thereby effectively offsetting the processing stress. When cutting a large-diameter thin-walled pipe, the support can prevent the pipe from being deformed due to its own gravity and cutting force, thereby ensuring that the dimensional accuracy of the pipe after cutting meets the requirements, improving the flatness and smoothness of the cut surface of the pipe, and reducing the surface roughness of the pipe.

[0020] The present invention is provided with a pressure piece. In order to avoid the breakage of the pipe due to its own gravity or stress change before cutting the last area, the connection state of the positioning frame is changed by the pressure piece. The positioning frame has two states. The corresponding position of the positioning frame will be opened in the cutting area. When opened, the positioning frames at other positions will still keep the pipe limited. As the pipe rotates away from the cutting position, the positioning frame will immediately close. The closed positioning frame limits the outer wall of the pipe, effectively maintaining the stability of the pipe during the rotary cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the loading rack and the positioning part of an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of an upper positioning member according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the lower positioning member according to an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the structure of a positioning frame in a connection state according to an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the structure of the positioning frame in a connected state according to an embodiment of the present invention;

[0028] Figure 7 The figure is a schematic diagram of the position state of the inner wall limiting groove of the positioning ring according to an embodiment of the present invention.

[0029] The numbers in the figure represent: 1. slitting machine; 2. unloading rack; 3. cutting rack; 4. loading rack; 41. outer limit member; 42. inner support member; 5. positioning part; 51. upper positioning member; 511. positioning plate one; 512. positioning ring one; 513. limiting ring one; 514. limiting groove; 52. lower positioning member; 521. positioning plate two; 522. positioning ring two; 523. limiting ring two; 53. positioning rack; 531. positioning block one; 532. connecting block; 533. positioning block two; 534. fixing groove; 535. top block; 536. top plate; 537. inclined block; 538. fixing block; 55. pressure member; 551. sliding shaft; 552. telescopic spring; 553. pressing block. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0031] The present invention will be further described below in conjunction with the embodiments.

[0032] Example:

[0033] See also Figure 1-Figure 7 The present invention provides a technical solution for slitting equipment for large-diameter pipe processing based on wire cutting: the slitting equipment includes a slitting machine 1, and the upper surface of the slitting machine 1 is arranged from right to left as a loading rack 4, a cutting rack 3 and a unloading rack 2. Referring to the steel pipe loading structure in the prior art, the pipes to be cut enter the slitting machine 1 space in sequence, and the loading rack 4 includes an outer limit member 41, and the outer limit member 41 can be displaced laterally on the surface of the slitting machine 1. First, the outer limit member 41 engages and limits the outer surface of the pipe transmitted to the corresponding position, and then the inner support member 42 arranged inside the outer limit member 41 can assist in supporting the inner wall of the pipe, which is not only suitable for pipe structures of different diameters, but also can ensure the stability of the pipe during movement.

[0034] refer to Figure 2 , Figure 3 and Figure 4The positioning part 5 includes an upper positioning member 51 arranged below the cutting frame 3, a positioning frame 53 for all-round limiting of the pipe is arranged on one side of the upper positioning member 51 close to the unloading frame 2, a lower positioning member 52 is arranged at the other end of the lower positioning member 52, the lower positioning member 52 is arranged on the inner wall of the unloading frame 2, the head end of the pipe is arranged on the inner wall of the outer limiting member 41, and the tail end of the pipe passes through the upper positioning member 51, the positioning frame 53 and the lower positioning member 52 in sequence, the upper positioning member 51 includes a positioning plate 511 fixedly connected to the bottom of the cutting frame 3, a positioning ring 512 is arranged in the middle of the positioning plate 511, and the side of the positioning ring 512 is cut The telescopic ring is designed. In the initial state, the telescopic ring is in a contracted state and is completely located in the middle of the positioning plate 511. The side of the positioning ring 512 is rotatably connected to the limiting ring 513. The side of the limiting ring 513 is connected to one end of the positioning frame 53. The pressure member 55 is evenly arranged on the outer wall of the limiting ring 513. The lower positioning member 52 includes a positioning plate 521 fixedly connected to the bottom of the unloading frame 2. The inner wall of the positioning plate 521 is provided with a positioning ring 522. The end of the positioning ring 522 close to the cutting frame 3 is rotatably connected to the limiting ring 523, and the outer side of the limiting ring 523 is connected to the other end of the positioning frame 53.

[0035] The pipe is passed through the cutting frame 3 by the movement of the loading rack 4 until the size of the pipe on the side of the cutting frame 3 reaches the size required for cutting. At this time, the head end of the pipe is limited by the external limiter 41 and the internal supporter 42. The cutting part is located outside the cutting frame 3, and the tail end is located inside the unloading rack 2. Limiting strips are arranged in the middle of the positioning ring 1 512 and the positioning ring 2 522, which can limit the side of the pipe, ensure the stability of the transmission process, and meet the limiting requirements in the cutting process of pipes of different calibers. Feeding operation is performed before cutting. After the cutting is completed by rotating cutting for one circle, the limiting of the unloading rack 2 is released. As the feeding continues, the cut pipe is unloaded, and then the feeding is continued to restore the limiting state again.

[0036] After the pipe reaches the cutting position, a sensor is provided at one end of the positioning ring 2 522 away from the cutting frame 3. After sensing the presence of the pipe, the sensor controls the magnetic induction block provided on the outer surface of the limiting ring 2 523 to generate an induced magnetic field. The magnetic induction block on the outer surface of the limiting ring 2 523 is magnetically connected to the positioning ring 1 512. The telescopic ring of the positioning ring 1 512 stretches, and the inner wall of the positioning ring 1 512 is provided with a circular hole that changes from small to large. The positioning ring 1 512 stretches to surround the outer surface of the limiting ring 1 513. Figure 3 Status shown.

[0037] refer to Figure 5 and Figure 6The positioning frame 53 includes a positioning block 531 fixedly connected to the outer end of the limiting ring 513, a connecting block 532 is slidably connected to the inner wall of the positioning block 531, and the other end of the connecting block 532 is snap-connected to the positioning block 533, the positioning block 533 is fixedly connected to the outer end of the limiting ring 523, and the middle of the bottom of the positioning block 533 and the positioning block 531 are both provided with a fixing groove 534, and the inner wall of the fixing groove 534 is slidably connected to a top block 535, and one end of the top block 535 located inside the positioning block 531 is connected to the The connecting block 532 is fixedly connected, and one end of the top block 535 located inside the positioning block 2 533 is wedge-fitted with the connecting block 532, and the other end of the top block 535 is elastically connected with a spring member, and the top end of the top block 535 adopts a trapezoidal design, and the top end of the top block 535 is fitted with a top plate 536. The positioning frame 53 also includes a fixed block 538 fixedly connected to one end of the positioning block 1 531, and the inner wall of the fixed block 538 is provided with an oblique block 537 fixedly connected to the top block 535, and the side of the oblique block 537 is fitted with the bottom end of the pressing block 553.

[0038] refer to Figure 3 and Figure 7 The pressure member 55 includes a sliding shaft 551 slidably connected to the outer wall of the limiting ring 513, a telescopic spring 552 is elastically connected to the bottom end of the sliding shaft 551, a pressure block 553 is arranged at the bottom end of the telescopic spring 552, and a limiting groove 514 slidably connected to the sliding shaft 551 is opened on the inner wall of the positioning ring 512, and both ends of the limiting groove 514 are designed with inclined surfaces.

[0039] As the telescopic ring of the positioning ring 512 stretches, the positioning ring 512 moves to limit the pressure piece 55 on the outer surface of the limiting ring 513, and the sliding shaft 551 moves downward under the force. While the telescopic spring 552 elastically deforms, the sliding shaft 551 drives the pressing block 553 to move downward, and the pressing block 553 squeezes the inclined block 537 on the inner wall of the fixed block 538, and the inclined block 537 initially located outside the fixed block 538 is squeezed into the inner wall of the fixed block 538. The inclined block 537 moves to push the top block 535 on the inner wall of the positioning block 531. The top block 535 drives the connecting block 532 to move, and the connecting block 532 moves until it is embedded in the positioning block 533 and squeezes the top block 535. At this time, the positioning block 1 531, the connecting block 532 and the positioning block 533 are connected into a whole, and the positioning frames 53 evenly arranged on the outside of the pipe can support and limit the outside of the pipe. The top block 535 moves, so that the contact surface between the top block 535 and the top plate 536 changes from an inclined surface to a plane, so that the top plate 536 moves out from the inner wall of the fixing groove 534 and fits tightly with the outer wall of the pipe.

[0040] During the wire cutting process of pipes, multiple limit supports can apply uniform support force to the pipes from different positions, effectively offsetting the processing stress. When cutting large-diameter thin-walled pipes, the support can prevent the pipes from deforming due to their own gravity and cutting force, ensuring that the dimensional accuracy of the pipes after cutting meets the requirements. Multiple limit supports also enhance the rigidity of the pipes and significantly reduce vibration during the processing. Vibration can cause ripples and uneven defects on the processed surface, while supports can make the processing process smoother. Reducing vibration can improve the flatness and smoothness of the surface and reduce surface roughness.

[0041] Although multiple limiters are provided on the outer surface during the transmission of the pipe, the two are not tightly fitted, and the pipe can be smoothly moved to the corresponding position. After moving to the corresponding position, multiple limit structures are tightly fitted to the pipe to ensure the stability of the pipe during the cutting process.

[0042] The limiting groove 514 is arranged on the inner wall of the positioning ring 512, and the midpoint of the limiting groove 514 coincides with the center position of the top of the inner wall of the positioning ring 512. Then the cutting operation is carried out. In order to fully cut the large-diameter pipe, we adopt the method of rotating the pipe to perform a comprehensive cutting. Under the restriction of the outer limit part 41 and the inner support part 42, the pipe rotates while the wire cutting equipment at the cutting frame 3 performs fixed-point cutting on it.

[0043] The pipe moves, and the positioning frame 53 that is tightly fitted to its outer surface rotates as a whole. The positioning frame 53 drives the limiting ring 2 523 and the limiting ring 1 513 to rotate synchronously. During the rotation, the wire cutting structure cuts the exposed surface of the pipe. As the limiting ring 1 513 rotates, the connected positioning block 1 531, the connecting block 532 and the positioning block 2 533 gradually enter the cutting area. Before entering the cutting area, the sliding shaft 551 first enters the limiting groove 514 along the inclined surface of the limiting groove 514. At this time, the telescopic spring 552 is elastically deformed. The pressure block 553 is restored, and no longer pressurizes the inclined block 537. The inclined block 537 drives the top block 535 to move, and the top block 535 drives the connection block 532 to move. The connection block 532 no longer engages with the positioning block 2 533. The connection block 532 is completely embedded in the positioning block 1 531. The gap between the positioning block 1 531 and the positioning block 2 533 meets the requirements of wire cutting. At this time, except for the group of positioning blocks 1 531 and 2 533 being separated, other groups of positioning blocks 1 531 and 2 533 remain connected. With the completion of the spatial cutting, the rotating slide shaft 551 also moves out along the other side of the limiting groove 514. At this time, the slide shaft 551 drives the pressure block 553 to squeeze the inclined block 537 and limit the position again. Although there is no pipe in the area where the cutting has been completed, the cutting side area can still be limited to ensure the stability of the pipe during the subsequent rotary cutting process.

[0044] Especially in the later stage of cutting, the pipe may be deformed due to the influence of cutting force, gravity and other factors. The limiting support structure at the bottom and side can fix the pipe from multiple directions to reduce the deformation of the pipe during the cutting process, thereby ensuring the accuracy of the cutting size. When cutting large-diameter thin-walled pipes, the limiting support structure can effectively prevent the pipe from producing elliptical deformation due to its own gravity and cutting force, and even prevent the pipe from breaking before it is cut.

[0045] The limited support structure can firmly fix the pipe in the cutting position to prevent the pipe from shifting during the cutting process. The limited support structure can ensure the cutting position accuracy so that the cut pipe can accurately match with other parts. The limited support structure can ensure that the pipe remains vertical or horizontal during the cutting process to prevent the cutting surface from tilting.

[0046] If there is no limit support during the cutting process of the pipe, vibration and noise are likely to occur. These vibrations and noise will not only affect the quality of the cutting, but also cause harm to the health of the operator. The limit support structure at the bottom and side of the pipe during the cutting process can increase the stability of the pipe, reduce the generation of vibration and noise, thereby improving the quality of the cutting surface and reducing the surface roughness.

[0047] During the cutting process, friction and collision may occur between the pipe and the cutting equipment, resulting in scratches, pits and other damages on the pipe surface. The limiting support structure at the bottom and side can act as a buffer between the pipe and the cutting equipment, reducing the occurrence of friction and collision, thereby protecting the integrity of the pipe surface. The limited support structure can reduce the shaking and vibration of the pipe during the cutting process, reduce the workload of the cutting equipment, thereby extending the service life of the cutting equipment, and reducing the shaking of the pipe can avoid collision between the cutting piece and the pipe, thereby improving the stability and reliability of the equipment.

[0048] The limited support structure at the bottom and side can keep the pipe stable during the cutting process, reducing the number of cutting interruptions and readjustments caused by pipe deformation, displacement and other problems, thereby improving cutting efficiency. The limited support structure can firmly fix the pipe in the cutting position, reducing the risk of the pipe flying out or falling during the cutting process, thereby enhancing the safety of the operator. At the same time, reducing vibration and noise also helps to improve the working environment and increase the working comfort of the operator.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A slitting device for large-diameter pipe processing based on wire cutting, characterized in that: include: A slitting machine (1), wherein the slitting machine (1) is sequentially arranged from left to right as a material discharging rack (2), a cutting rack (3) and a material loading rack (4), wherein the material loading rack (4) comprises an outer limiting member (41) for conveying a pipe, wherein an inner supporting member (42) for supporting an inner wall of the pipe is arranged inside the outer limiting member (41), wherein the cutting rack (3) is used for performing a pipe cutting operation, wherein a positioning portion (5) for limiting the position of the pipe is arranged below the cutting rack (3), wherein the other end of the positioning portion (5) is located on the inner wall of the material discharging rack (2); The positioning part (5) comprises an upper positioning member (51) arranged below the cutting frame (3); a positioning frame (53) for limiting the position of the pipe in all directions is arranged on one side of the upper positioning member (51) close to the unloading frame (2); a lower positioning member (52) is arranged at the other end of the positioning frame (53); the lower positioning member (52) is arranged on the inner wall of the unloading frame (2); the head end of the pipe is arranged on the inner wall of the outer limiting member (41); and the tail end of the pipe passes through the upper positioning member (51), the positioning frame (53) and the lower positioning member (52) in sequence; Wherein, the upper positioning member (51) comprises a pressure member (55) for adjusting the connection structure state of the positioning frame (53).

2. According to claim 1, a slitting device for large-diameter pipe processing based on wire cutting is characterized in that: The upper positioning member (51) comprises a positioning plate (511) fixedly connected to the lower part of the cutting frame (3); a positioning ring (512) is arranged in the middle of the positioning plate (511); the side of the positioning ring (512) is rotatably connected to a limiting ring (513); the side of the limiting ring (513) is connected to one end of the positioning frame (53); and the pressure member (55) is evenly arranged on the outer wall of the limiting ring (513).

3. The slitting equipment for large-diameter pipe processing based on wire cutting according to claim 2 is characterized in that: The lower positioning member (52) comprises a second positioning plate (521) fixedly connected to the lower portion of the unloading frame (2); a second positioning ring (522) is provided on the inner wall of the second positioning plate (521); one end of the second positioning ring (522) close to the cutting frame (3) is rotatably connected to a second limiting ring (523); the outer side of the second limiting ring (523) is connected to the other end of the positioning frame (53).

4. The slitting equipment for large-diameter pipe processing based on wire cutting according to claim 3 is characterized in that: The positioning frame (53) comprises a positioning block 1 (531) fixedly connected to the outer end of the limiting ring 1 (513); the inner wall of the positioning block 1 (531) is slidably connected to a connecting block (532); the other end of the connecting block (532) is snap-connected to a positioning block 2 (533); the positioning block 2 (533) is fixedly connected to the outer end of the limiting ring 2 (523).

5. The slitting equipment for large-diameter pipe processing based on wire cutting according to claim 4 is characterized in that: A fixing groove (534) is provided in the middle of the bottom end of the second positioning block (533) and the first positioning block (531); a top block (535) is slidably connected to the inner wall of the fixing groove (534); one end of the top block (535) located inside the first positioning block (531) is fixedly connected to the connecting block (532); and one end of the top block (535) located inside the second positioning block (533) is wedge-fitted with the connecting block (532).

6. The slitting equipment for large-diameter pipe processing based on wire cutting according to claim 5 is characterized in that: The other end of the top block (535) is elastically connected to a spring member, and the top end of the top block (535) is designed in a trapezoidal shape, and the top end of the top block (535) is attached to a top plate (536).

7. The slitting equipment for large-diameter pipe processing based on wire cutting according to claim 2 is characterized in that: The pressure member (55) comprises a sliding shaft (551) slidably connected to the outer wall of the limiting ring (513); the bottom end of the sliding shaft (551) is elastically connected to a telescopic spring (552); and the bottom end of the telescopic spring (552) is provided with a pressure block (553).

8. The slitting equipment for large-diameter pipe processing based on wire cutting according to claim 5 is characterized by: The positioning frame (53) further comprises a fixing block (538) fixedly connected to one end of the positioning block (531); an inner wall of the fixing block (538) is provided with an inclined block (537) fixedly connected to the side of the top block (535); and a side of the inclined block (537) is fitted with the bottom end of the pressing block (553).

9. The slitting equipment for large-diameter pipe processing based on wire cutting according to claim 7, characterized in that: The inner wall of the first positioning ring (512) is provided with a limiting groove (514) which is slidably connected to the sliding shaft (551), and both ends of the limiting groove (514) are designed with inclined surfaces.

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