Pipe cutting apparatus and method

Abstract

This application provides a pipe cutting device and method. The pipe cutting device includes a feeding device and a cutting device. The feeding device is used to simultaneously advance multiple pipes of the same specification. With the optional installation of various types of rotating clamps, the pipes are advanced while rotating, avoiding cumbersome operations such as machine downtime. The cutting device engages and drives multiple pipes to rotate circumferentially. The cutting component, under the action of a robotic arm, adjusts the cutting angle and cuts the rotating pipes sequentially, ensuring the flatness of the cut and achieving the cutting of multiple pipes of the same length in a single movement. In addition, this application also provides a pipe cutting method, which improves cutting efficiency, ensures the accuracy of cutting data, and improves the flatness of the cut.

Description

Technical Field

[0001] This application relates to the field of water conservancy engineering technology, and in particular to a pipe cutting device and cutting method. Background Technology

[0002] Water conservancy engineering mainly studies the basic knowledge and skills of engineering hydrology, water conservancy engineering surveying, hydraulic reinforced concrete, hydraulic structures, and engineering drawing. In the field of water conservancy engineering, it involves engineering planning and design, on-site construction, project budgeting, and maintenance and repair of water conservancy equipment. Water conservancy projects are often inseparable from water treatment. In the process of water treatment, pipelines are usually needed to guide the water. Different situations require pipelines of different sizes and lengths. Therefore, cutting equipment is needed to pre-cut the pipelines before installation on the construction site.

[0003] In existing water conservancy projects, PVC pipes and seamless steel pipes are mostly manufactured with standard lengths of 6m or 4m. During construction, these pipes need to be cut to meet specific requirements. In large-scale construction, pipes need to be cut into multiple pieces of the same length to meet usage requirements. Existing cutting equipment can cut single pipes to different lengths, but in actual use, a large number of pipes of the same length are required, leading to a decrease in cutting efficiency per cut. Furthermore, existing cutting devices lack versatility when cutting pipes of different materials and diameters, making rapid cutting difficult and resulting in uneven pipe cuts. Summary of the Invention

[0004] This application provides a pipe cutting device and cutting method, which simultaneously advances multiple pipes to cut various types of pipes. The cutting component cuts the rotating pipes during the movement, ensuring high cutting efficiency and high cutting flatness.

[0005] In a first aspect, this application provides a pipe cutting device, which includes a feeding device and a cutting device; The feeding device includes: a base, a lifting platform disposed on the base, and a propulsion assembly slidably mounted on the lifting platform; The lifting platform is provided with multiple push slides extending toward the cutting device along its width direction; The propulsion assembly includes a propulsion plate that is slidably disposed along the length of the lifting platform. The bottom of the propulsion plate is provided with a push block that corresponds one-to-one with a plurality of push slides. A universal ball bearing that rolls with the corresponding push slide is rotatably connected to the push block. A rotating clamp is magnetically attached to the push block. The rotating clamp includes: a magnetic chuck, a bearing connected to the magnetic chuck, a mounting plate rotatably connected to the bearing, and a central bar disposed on the mounting plate. The propulsion assembly further includes a first lead screw drive assembly; the first lead screw assembly includes: a first lead screw rotatably connected to the lifting platform, and a first motor for driving the first lead screw to rotate; the first lead screw is threadedly connected to the propulsion plate. The cutting device includes: a base and an assembly plate disposed on the base; multiple tube clamping mechanisms are rotatably connected to the assembly plate, and the multiple tube clamping mechanisms correspond one-to-one with multiple push slides, and the multiple tube clamping mechanisms are driven to rotate synchronously by a belt drive mechanism. Each tube clamping mechanism includes a rotating disk with a hollow cavity; the center of the rotating disk has a clearance hole for the pipe to pass through, and telescopic components are arranged opposite each other inside the hollow cavity, with an arc-shaped plate located at the end of the telescopic component. The inner arc surface of the arc plate is rotatably connected to multiple rolling rubber rods. When the pushing block pushes the pipe to travel between two oppositely arranged arc plates, the pipe friction causes the multiple rolling rubber rods to rotate circumferentially. The cutting device further includes a robotic arm slidably mounted on the top of the assembly plate, and a cutting assembly disposed at the end of the robotic arm; a second lead screw drive assembly for driving the robotic arm to slide is disposed on the top of the assembly plate. The second lead screw assembly includes: a second lead screw rotatably connected to the top of the assembly plate, and a second motor for driving the second lead screw to rotate; the second lead screw is threadedly connected to the robotic arm.

[0006] In this application, the feeding device is used to synchronously advance multiple pipes of the same specification. With the optional installation of various types of rotating clamps, the pipes are advanced while rotating, avoiding cumbersome operations such as machine downtime. The cutting device engages and drives multiple pipes to rotate circumferentially. The cutting component, under the action of the robotic arm, adjusts the cutting angle and cuts the rotating pipes sequentially, ensuring the flatness of the cut and enabling the cutting of multiple pipes of the same length in a single movement.

[0007] In one specific feasible implementation, the base is provided with multiple hydraulic telescopic rods; The multiple hydraulic telescopic rods support and drive the lifting platform to rise and fall. The raising and lowering of the hydraulic telescopic rods allows pipes of various diameters to be aligned concentrically with the clearance holes.

[0008] In one specific possible implementation, the first lead screw assembly is connected to the middle of the push plate, or; The first lead screw assembly is connected to both sides of the push plate. The use of a lead screw pusher ensures precise and adjustable push length.

[0009] In one specific implementation scheme, each of the push slides is an arc-shaped slide, and the push block is an arc-shaped block that cooperates with the corresponding push slide. The pipe is limited within the arc-shaped slide, and the arc-shaped block has stable sliding performance.

[0010] In one specific implementation scheme, the lifting platform is provided with multiple slide rails along its length, and the push plate is provided with sliders that correspond one-to-one with the multiple slide rails. This makes the push plate slide more smoothly.

[0011] In one specific implementation, the assembly plate and the base are arranged perpendicularly to each other, and the end of the base away from the assembly plate is provided with a discharge ramp. Each rotating disk is rotatably connected to the assembly plate via roller bearings. This results in smoother disk rotation.

[0012] In one specific implementation, the belt drive mechanism includes: pulleys disposed on each rotating disk and coaxially rotating with the corresponding rotating disk; a rack and pinion belt connecting multiple pulleys; and a belt motor connected to the rack and pinion belt. The belt motor synchronously drives multiple rotating disks to rotate circumferentially.

[0013] In one specific implementation, a groove is formed on the top of the assembly plate, and the second lead screw is rotatably connected within the groove. The robotic arm is slidably mounted on the groove and threadedly connected to the second lead screw. The robotic arm is driven by a lead screw, resulting in stable and reliable sliding performance.

[0014] In one specific implementation, a distance sensor is installed inside each clearance hole. Data monitoring of the cutting length is automated.

[0015] Secondly, a pipe cutting method includes the following steps: Step 1: Place multiple pipes sequentially on the multiple push slides on the lifting platform. After the central bar of the rotating clamp is inserted into the interior of the multiple pipes, it magnetically attracts the push block. The second step is to adjust the height of the lifting platform so that each pipe is concentric with the corresponding clearance hole. The third step is to start the first motor, slide the push plate towards the assembly plate, and push the push block to push multiple pipes into the corresponding clearance holes one by one. The distance sensor measures the extension length of the multiple pipes. Step 4: The relatively set arc-shaped plates are engaged with the corresponding pipes under the extension of the telescopic components, and the belt motor drives multiple rotating discs to rotate at low speed. Step 5: During the rotation of multiple pipes, the robotic arm adjusts the angle and then cuts them using a cutting component. During the rotation of the second lead screw, the multiple pipes are cut sequentially by sliding laterally. Step 6: Continue to start the first motor, and the push block will synchronously advance the multiple slowly rotating pipes under the action of the rotating clamp, and the rolling rubber rod will rotate accordingly; Step 7: After the distance sensor measures the extension length of multiple pipes and reaches the specified length, the robotic arm adjusts its height and continues to cut using the cutting assembly.

[0016] The above methods improve cutting efficiency, ensure the accuracy of cutting data, and enhance the smoothness of the cut. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the pipe cutting device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the mounting plate provided in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of the push block provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the arc-shaped plate provided in the embodiments of this application; Figure 5 This is a schematic diagram of the structure of the rotating card provided in the embodiment of this application; Figure 6 A flowchart illustrating the steps of the pipe cutting method provided in this application embodiment.

[0018] Icon labels: Base-100, lifting platform-110, push slide-111, slide rail-112, hydraulic telescopic rod-120, push plate-130, push block-131, universal ball bearing-132, first motor-140, first lead screw-141; Base-200, Assembly plate-210, Pipe clamping mechanism-220, Rotary disk-221, Roller bearing-222, Pulley-223, Rack and pinion belt-230, Belt motor-231, Unloading ramp-240, Second motor-250, Slide groove-251, Second lead screw-252; 260 - clearance hole, 261 - telescopic component, 262 - arc plate, 263 - assembly groove, 264 - rolling glue stick; Robotic arm-300, cutting assembly-310; Rotary clamp-400, magnetic chuck-410, bearing-420, center bar-430. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] To facilitate understanding of the pipe cutting device and method provided in this application, its application scenario is first described. This pipe cutting device and method are mainly used in the field of water conservancy engineering technology. Existing water conservancy projects often use PVC pipes, seamless steel pipes, etc., with factory standard dimensions of 6m or 4m in length. During construction, pipes need to be cut for use due to construction requirements; in large-scale construction, pipes need to be cut into multiple pieces of the same length according to usage requirements. Existing cutting equipment can cut different lengths for a single pipe body, but in actual use, a large number of pipes of the same length are required, resulting in a decrease in cutting efficiency per cut. Furthermore, existing cutting devices lack versatility when cutting pipes of different materials and diameters, making rapid cutting difficult and resulting in uneven pipe cuts. Therefore, the pipe cutting device and method in this application, by simultaneously advancing multiple pipes, is adapted to cut various types of pipes. The cutting component cuts the rotating pipe during movement, ensuring high cutting efficiency and high cut smoothness.

[0022] refer to Figure 1 , Figure 1 This is a schematic diagram of the pipe cutting device. The pipe cutting device provided in this application includes a feeding device and a cutting device. The feeding device is used to precisely feed and cut multiple pipes. The pipes can be PVC pipes or steel pipes, with diameters of 40mm, 50mm, 70mm, 100mm, etc., and lengths of 4m or 6m (factory standard). By simultaneously advancing multiple pipes, precise feeding accuracy is achieved, ensuring high cutting precision.

[0023] In the specific configuration of the feeding device, the feeding device includes: a base 100, a lifting platform 110 mounted on the base 100, and a propulsion assembly slidably mounted on the lifting platform 110; the base 100 is provided with multiple hydraulic telescopic rods 120; the multiple hydraulic telescopic rods 120 support and drive the lifting platform 110 to rise and fall. Through the rising and falling of the hydraulic telescopic rods 120, pipes of various diameters can be made concentric with the clearance hole 260.

[0024] The lifting platform 110 has multiple push slides 111 extending towards the cutting device along its width direction; each push slide 111 is an arc-shaped slide; the propulsion assembly includes a propulsion plate 130 slidably disposed along the length direction of the lifting platform 110, the propulsion plate 130 being disposed along the width direction of the lifting platform 110, and the bottom of the propulsion plate 130 having push blocks 131 corresponding one-to-one with the multiple push slides 111; combined with Figure 3 As can be seen, the push block 131 is rotatably connected to a universal ball bearing 132 that rolls with the corresponding push slide 111; the push block 131 is an arc-shaped block that mates with the corresponding push slide 111. The arc-shaped slide in the pipeline is limited, and the sliding performance of the arc-shaped block is stable.

[0025] Therefore, when cutting pipes of different diameters according to engineering requirements, the pipes are placed sequentially on the push slide, and the push block 131 contacts the end of the pipe. In this embodiment, the pipe cutting process is carried out by rotation. Therefore, the push assembly in this application uses rotation for propulsion to avoid the need to stop the machine during the propulsion process.

[0026] For specific matching of rotational propulsion, please refer to Figure 5 As shown, a rotating clamp 400 is magnetically attached to the push block 131. The rotating clamp 400 includes: a magnetic chuck 410, a bearing 420 connected to the magnetic chuck 410, a mounting plate rotatably connected to the bearing 420, and a central rod 430 mounted on the mounting plate. The rotating clamp 400 is available in various models to match pipes of different sizes, such as 40mm, 50mm, 70mm, and 100mm. By inserting the central rod 430 into the hollow cavity of the pipe and magnetically attaching it to the push block 131 and the push plate 130 using the magnetic chuck 410, the pipe rotates synchronously under the action of the rotating clamp 400 when the cutting device rotates, and is unaffected by rotational force during the advancement process, avoiding interruptions. For cutting pipes of the same diameter in a batch, frequent replacement of the rotating clamp 400 is unnecessary.

[0027] Continue reading Figure 1In order to precisely advance the push plate 130, the push assembly also includes a first lead screw 141 drive assembly. The first lead screw 141 assembly includes: a first lead screw 141 rotatably connected to the lifting platform 110, and a first motor 140 for driving the first lead screw 141 to rotate. The first lead screw 141 is threadedly connected to the push plate 130. The first lead screw 141 assembly is connected to the middle of the push plate 130, or the first lead screw 141 assembly is connected to both sides of the push plate 130. In the embodiments of this application, it is preferred that the first lead screw 141 assembly is connected to both sides of the push plate 130. A synchronous first motor 140 is used to drive the two first lead screws 141 to rotate synchronously in the rotating state, thereby using the lead screw push method to ensure that the push length is precisely adjustable.

[0028] Furthermore, the lifting platform 110 is provided with multiple slide rails 112 along its length, and the push plate 130 is provided with sliders that correspond one-to-one with the multiple slide rails 112. The push plate 130 slides more smoothly.

[0029] Combination Figure 2 As shown, the cutting device includes: a base 200 and an assembly plate 210 mounted on the base 200; multiple tube clamping mechanisms 220 are rotatably connected to the assembly plate 210, each tube clamping mechanism 220 corresponding to multiple push slides 111, and the multiple tube clamping mechanisms 220 are driven to rotate synchronously by a belt drive mechanism; specifically, each tube clamping mechanism 220 includes a rotating disk 221 with a hollow cavity; the center of the rotating disk 221 has a clearance hole 260 for the pipe to pass through, and a telescopic component 261 is arranged opposite to it inside the hollow cavity, with an arc-shaped plate 262 located at the end of the telescopic component 261 connected to the clearance hole 260; the assembly plate 210 and the base 200 are arranged perpendicularly to each other, and a discharge ramp 240 is provided at the end of the base 200 away from the assembly plate 210; each rotating disk 221 is rotatably connected to the assembly plate 210 through a roller bearing 222. The rotating disk 221 rotates more smoothly. As can be seen from the above description, after the height of the lifting platform 110 is adjusted to a suitable range, the center of the multiple pipes coincides with the center of the clearance hole 260. Under the action of the push plate 130, the pipes enter the clearance hole 260. The opening diameter of the clearance hole 260 is the maximum diameter of various pipe models. After the pipes enter the clearance hole 260, they extend relative to the set telescopic component 261. The arc plate 262 presses against the outer wall of the pipe for positioning. The arc plate 262 has the function of driving the pipe to rotate, and at the same time has a stable locking function to prevent shaking during cutting.

[0030] At the same time, such as Figure 4As shown, multiple rolling rubber rods 264 are rotatably connected to the inner arc surface of the arc plate 262. An assembly groove 263 is provided on the inner arc surface of the arc plate 262. The rolling rubber rods 264 are elastic telescopic rods that can rotate within the assembly groove 263. When the push block 131 pushes the pipe along the two opposing arc plates 262, the pipe friction causes the multiple rolling rubber rods 264 to rotate circumferentially. Therefore, during the circumferential rotation of the rotating disk 221, the rolling rubber rods 264 cannot rotate; the friction between the rolling rubber rods 264 and the outer wall of the pipe causes the pipe to rotate. When the push plate 130 pushes towards the assembly plate 210, the outer wall of the pipe comes into frictional contact with the rolling rubber rods 264, and the rolling rubber rods 264 rotate circumferentially within the assembly groove, thus ensuring that the pipe can be pushed forward even when the arc plates 262 are pressing against each other, avoiding machine stoppage during advancement.

[0031] Continue reading Figure 1-2 In the specific process of synchronously rotating multiple rotating disks 221, the belt drive mechanism includes: a pulley 223 mounted on each rotating disk 221 and coaxially rotating with the corresponding rotating disk 221; a rack and pinion belt 230 connecting the multiple pulleys 223; and a belt motor 231 connected to the rack and pinion belt 230. The belt motor 231 synchronously drives the multiple rotating disks 221 to rotate circumferentially. Simultaneously, to achieve automated operation, for example, when cutting a 6m pipe into three 2m sections for engineering installation, a distance sensor is installed inside each clearance hole 260. Data monitoring of the cutting length is automated. After the distance sensor detects that the advance length is 2m + the cutting allowance, the central control system controls the first motor 140 to stop driving. The belt motor 231 drives the rotating disks 221 to rotate at a speed below 750 rpm, and the cutting assembly 310 sequentially cuts the multiple pipes in a sliding manner, forming standard 2m long pipes for installation. The propulsion assembly continues to rotate and propel the pipe, while the ranging sensor continues to measure and repeats the operation. It should be noted that the central control system can use a PLC controller or manual programming control, which are common control methods in the existing control field and will not be elaborated upon here. In other embodiments of this application, a center rod 430 can be tightly engaged with the inner diameter of the pipe, and after a considerable propulsion length, the first motor 140 can be reversed to retract the pipe to a suitable length for cutting.

[0032] In the specific sliding cutting process, the cutting device also includes a robotic arm 300 slidably mounted on the top of the assembly plate 210, and a cutting assembly 310 disposed at the end of the robotic arm 300. A second lead screw 252 drive assembly for driving the robotic arm 300 to slide is provided on the top of the assembly plate 210. The second lead screw 252 assembly includes: a second lead screw 252 rotatably connected to the top of the assembly plate 210, and a second motor 250 for driving the second lead screw 252 to rotate. The second lead screw 252 is threadedly connected to the robotic arm 300. A sliding groove 251 is formed on the top of the assembly plate 210, and the second lead screw 252 is rotatably connected within the sliding groove 251. The robotic arm 300 is slidably mounted on the sliding groove 251 and threadedly connected to the second lead screw 252. The use of a lead screw drive to drive the robotic arm 300 to slide ensures stable and reliable sliding performance. It should be noted that the robotic arm 300 is a multi-axis robotic arm 300, and its rotation angle is controlled by programming. The cutting component 310 is selected and installed for pipes of different materials, such as cutting machines, laser cutting heads, etc. These are all devices known to those skilled in the art, and will not be described in detail here.

[0033] In this application, the feeding device is used to synchronously advance multiple pipes of the same specification. With the optional installation of various types of rotating clamps 400, the pipes are advanced while rotating, avoiding cumbersome operations such as machine downtime. The cutting device engages and drives multiple pipes to rotate circumferentially. The cutting component 310, under the action of the robotic arm 300, adjusts the cutting angle and cuts the rotating pipes sequentially, ensuring the flatness of the cut and enabling the cutting of multiple pipes of the same length in a single movement.

[0034] refer to Figure 6 This application also provides a pipe cutting method, including the following steps: S1. Place multiple pipes sequentially on multiple push slides on the lifting platform. After the central rod of the rotating clamp is inserted into the interior of the multiple pipes, it magnetically attracts the push block.

[0035] S2. Adjust the height of the lifting platform so that each pipe is concentric with the corresponding clearance hole.

[0036] S3. Start the first motor, the push plate slides towards the assembly plate, the push block pushes multiple pipes into the multiple clearance holes one by one, and the distance sensor measures the extension length of the multiple pipes.

[0037] S4. The relatively set arc-shaped plates engage with the corresponding pipes under the extension of the telescopic components, and the belt motor drives multiple rotating discs to rotate at low speed.

[0038] S5. During the rotation of multiple pipes, the robotic arm adjusts the angle and then cuts them using a cutting component. During the rotation of the second lead screw, the multiple pipes are cut sequentially by a lateral sliding method.

[0039] S6. Continue to start the first motor, and the push block will synchronously advance the multiple slowly rotating pipes under the action of the rotating clamp, and the rolling rubber rod will rotate accordingly.

[0040] S7. After the distance sensor measures the extension length of multiple pipes and the specified length is reached, the robotic arm adjusts its height and continues to cut using the cutting assembly.

[0041] The above methods improve cutting efficiency, ensure the accuracy of cutting data, and enhance the smoothness of the cut.

[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the framework of this disclosure, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this specification, which are not provided in detail for the sake of brevity.

[0043] Additionally, to simplify the description and discussion, and to avoid obscuring one or more embodiments of this specification, well-known power / ground connections to integrated circuits and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring one or more embodiments of this specification, and this also takes into account the fact that the details of implementation of these block diagram apparatuses are highly dependent on the platform on which one or more embodiments of this specification will be implemented (i.e., these details should be fully understood by those skilled in the art).

[0044] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.

[0045] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A pipe cutting apparatus, characterised in that, include: Feeding device and cutting device; The feeding device includes: a base, a lifting platform mounted on the base, and a propulsion assembly slidably mounted on the lifting platform; the lifting platform has multiple push tracks extending towards the cutting device along its width direction; the propulsion assembly includes a propulsion plate slidably mounted along the length direction of the lifting platform, and a push block corresponding to each of the multiple push tracks is provided at the bottom of the push plate; a universal ball bearing that rolls with the corresponding push track is rotatably connected to the push block; a rotating clamp is magnetically attached to the push block, the rotating clamp including: a magnetic chuck, a bearing connected to the magnetic chuck, a mounting plate rotatably connected to the bearing, and a central bar mounted on the mounting plate; the propulsion assembly also includes a first lead screw assembly; the first lead screw assembly includes: a first lead screw rotatably connected to the lifting platform, and a first motor for driving the first lead screw to rotate; the first lead screw is threadedly connected to the propulsion plate; the cutting device includes: a base, and an assembly plate mounted on the base; multiple tube clamping mechanisms are rotatably connected to the assembly plate, the multiple tube clamping mechanisms being connected to multiple... Each pusher slide corresponds to a single pipe, and the multiple pipe clamping mechanisms are driven to rotate synchronously via a belt drive mechanism. Each pipe clamping mechanism includes a rotating disk with a hollow cavity. The center of the rotating disk has a clearance hole for the pipe to pass through. Telescopic components are arranged opposite each other inside the hollow cavity, and the end of the telescopic component is connected to an arc-shaped plate located at the clearance hole. Multiple rolling rubber rods are rotatably connected to the inner arc surface of the arc plate. When the pusher pushes the pipe along the two oppositely arranged arc plates, the pipe friction causes the multiple rolling rubber rods to rotate circumferentially. The cutting device also includes a robotic arm slidably mounted on the top of the assembly plate and a cutting component located at the end of the robotic arm. A second lead screw assembly for driving the robotic arm to slide is provided on the top of the assembly plate. The second lead screw assembly includes: a second lead screw rotatably connected to the top of the assembly plate and a second motor for driving the second lead screw to rotate. The second lead screw is threadedly connected to the robotic arm. Multiple hydraulic telescopic rods are provided on the base. The multiple hydraulic telescopic rods support and drive the lifting platform to rise and fall.

2. The pipe cutting device according to claim 1, characterized in that, The first lead screw assembly is connected to the middle of the push plate, or the first lead screw assembly is connected to both sides of the push plate.

3. The pipe cutting device according to claim 1, characterized in that, Each of the aforementioned push slides is an arc-shaped slide, and the push block is an arc-shaped block that cooperates with the corresponding push slide.

4. The pipe cutting device according to claim 3, characterized in that, The lifting platform is provided with multiple slide rails along its length, and the push plate is provided with sliders that correspond one-to-one with the multiple slide rails.

5. The pipe cutting device according to claim 4, characterized in that, The assembly plate and the base are arranged perpendicularly to each other, and the end of the base away from the assembly plate is provided with a discharge ramp; each rotating disk is rotatably connected to the assembly plate through roller bearings.

6. The pipe cutting device according to claim 5, characterized in that, The belt drive mechanism includes: a pulley disposed on each rotating disk and rotating coaxially with the corresponding rotating disk, a rack and pinion belt connecting multiple pulleys, and a belt motor connected to the rack and pinion belt.

7. The pipe cutting device according to claim 6, characterized in that, The top of the assembly plate is provided with a sliding groove, the second lead screw is rotatably connected in the sliding groove, and the robotic arm is slidably assembled on the sliding groove and threadedly connected to the second lead screw.

8. The pipe cutting device according to any one of claims 1 to 7, characterized in that, Each clearance hole is equipped with a distance measuring sensor.

9. A pipe cutting method, characterized in that, The pipe cutting device described in any one of claims 1 to 8 is used to achieve the following steps: multiple pipes are placed sequentially on multiple push slides on a lifting platform; the central bar of the rotating clamp is inserted into the interior of the multiple pipes and magnetically attracted to the push block; the height of the lifting platform is adjusted so that each pipe is concentric with the corresponding clearance hole; the first motor is started, the push plate slides towards the assembly plate, and the push block pushes the multiple pipes into the multiple clearance holes one by one; the distance sensor measures the extension length of the multiple pipes; the relatively set arc plate engages the corresponding pipe under the extension of the telescopic component, and the belt motor drives multiple rotating disks to rotate at low speed; during the rotation of the multiple pipes, the angle is adjusted by the robotic arm and the cutting component is used to cut them, and the multiple pipes are cut sequentially by lateral sliding during the rotation of the second screw; the first motor is started again, and the push block synchronously advances the multiple slowly rotating pipes under the action of the rotating clamp, and the rolling rubber rod rotates accordingly; after the extension length of the multiple pipes reaches the specified length as measured by the distance sensor, the robotic arm adjusts the height and continues to cut them using the cutting component.

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