A rotary cut pipe cutting machine

Abstract

The embodiment of the present application provides a rotary cutting pipe cutting machine, and relates to the technical field of pipe cutting machines.The rotary cutting pipe cutting machine comprises a machine body, a pipe rotating mechanism and a pipe cutting mechanism; the pipe rotating mechanism and the pipe cutting mechanism are connected with the machine body; the pipe rotating mechanism comprises a fixed plate, a first driving assembly and a clamping assembly; the clamping assembly is rotationally connected with the fixed plate; the first driving assembly is installed on the machine body; the first driving assembly is connected with the clamping assembly and is used for driving the clamping assembly to rotate; the clamping assembly is used for clamping a pipe body; and the pipe cutting mechanism is used for cutting the pipe body.Through the combination of the pipe rotating mechanism and the pipe cutting mechanism, the pipe body is stably clamped by the clamping assembly of the pipe rotating mechanism, and the rotation of the pipe body is realized through the first driving assembly, so that the problem of low efficiency of the existing fixed pipe cutting mode is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe cutting machines, in particular to a rotary cutting pipe cutting machine. BACKGROUND

[0002] Pipe cutting is one of the important processes in pipe processing, which aims to divide the pipe body into the required length or shape through cutting means to meet the requirements of subsequent processing or use. Pipe cutting is usually suitable for various materials of pipe body, such as metal pipe, plastic pipe, composite material pipe, etc., which is widely used in building, machinery manufacturing, petroleum chemical industry and other fields. The efficiency and quality of pipe cutting directly affect the processing precision and production cost of products, so the optimization and improvement of pipe cutting technology has always been the focus of research in related fields.

[0003] At present, the pipe cutting machines on the market usually adopt two cutting methods: one is to fix the pipe body and rotate the cutter, which is suitable for cutting small caliber pipe body, such as metal pipe or plastic pipe with diameter between 10mm to 50mm. This method completes the cutting step by step through the rotation of the cutter, ensuring accurate and uniform cutting path, but the cutting efficiency is limited because the cutter needs to pass through the pipe body completely, and it is not suitable for large caliber pipe body. The other is the ring cutting method of rotating the pipe body and fixing the cutter, which is more suitable for thin-walled pipe body, such as aluminum alloy pipe or stainless steel pipe with wall thickness of 1mm to 3mm. Through the rotation of the pipe body, the cutter can realize uniform ring cutting, but when the pipe body is large in caliber or the material is thick, the stability and processing precision of the rotating pipe body will be affected to a certain extent.

[0004] How to organically integrate the method of fixing the pipe body and rotating the cutter with the method of rotating the pipe body and fixing the cutter, which can not only consider the accurate cutting of small caliber pipe body, but also adapt to the efficient ring cutting of thin-walled pipe body, has become a key problem in the current pipe cutting technology research. SUMMARY

[0005] According to the embodiments of the present application, a rotary cutting pipe cutting machine is provided to solve the problems raised in the background art.

[0006] In a first aspect of the present application, a rotary cutting pipe cutting machine is provided.

[0007] The rotary cutting pipe cutting machine comprises a machine body, a pipe rotating mechanism and a pipe cutting mechanism; the pipe rotating mechanism and the pipe cutting mechanism are connected with the machine body; the pipe rotating mechanism comprises a fixed plate, a first driving assembly and a clamping assembly; the clamping assembly is rotationally connected with the fixed plate, the first driving assembly is installed on the machine body, the first driving assembly is connected with the clamping assembly for driving the clamping assembly to rotate, the clamping assembly is used for clamping the pipe body, and the pipe cutting mechanism is used for cutting the pipe body.

[0008] Preferably, a guide channel steel is arranged on the machine body, and the guide channel steel is provided with a first supporting assembly.

[0009] Preferably, the first supporting assembly comprises a base, two roller shafts, a bending plate, an arc-shaped seat, a first adjusting screw and two first supporting wheels; the two roller shafts are rotationally connected with the base, the base is slidingly arranged on the guide channel steel, the two roller shafts are in contact with the upper surface of the guide channel steel, the bending plate is slidingly connected with the base, the upper surface of the base is an inclined surface, the first adjusting screw is threadedly connected with the base, one end of the first adjusting screw is rotationally connected with the bending plate, the arc-shaped seat is fixedly connected with the bending plate, and the two first supporting wheels are rotationally connected with the arc-shaped seat, the two first supporting wheels are used for supporting the pipe body, and a limiting space of the pipe body is formed between the two first supporting wheels.

[0010] Preferably, a second supporting assembly is further arranged on the machine body, the second supporting assembly comprises a mounting plate, a first air cylinder, two connecting plates, second supporting wheels, two first supporting arms, two second supporting arms, a first connecting shaft, a second connecting shaft and second adjusting screws, the mounting plate is fixedly mounted on the machine body, two mounting portions are arranged on the mounting plate, first sliding grooves are arranged on the two mounting portions, the two second adjusting screws pass through the mounting plate and are threadedly connected with the mounting plate, one end of each of the two second supporting arms is rotationally mounted between the two mounting portions, the first connecting shaft passes through the other end of each of the two second supporting arms and is rotationally connected with the other end of each of the two second supporting arms, second sliding grooves are arranged on the two connecting plates, the first connecting shaft passes through the two second sliding grooves, the second connecting shaft is fixedly mounted between the two connecting plates, one end of each of the two first supporting arms is rotationally connected with the second connecting shaft, the two second supporting arms are arranged in cross with the two first supporting arms, and the two second supporting arms are hingedly connected with the two first supporting arms at the cross positions, a third connecting shaft is connected with the other end of each of the two first supporting arms, the third connecting shaft extends into the first sliding grooves, the second supporting wheels are rotationally connected with the two connecting plates, the first air cylinder is fixedly connected with the mounting plate, and the output of the first air cylinder passes through the mounting plate and is connected with a positioning block.

[0011] Preferably, the clamping assembly includes two rotating disks, two guide plates, and three clamping blocks; the two rotating disks are rotatably mounted on both sides of the fixed plate, and each rotating disk has a circular hole for the tube to pass through. The two guide plates are disposed on both sides of the two rotating disks and are fixedly connected to each other by three fourth connecting shafts. Each of the three fourth connecting shafts is provided with a first rolling bearing, which contacts the inner wall of the circular hole of the rotating disk. The two clamping blocks are equidistantly disposed between the two rotating disks, and one end of each clamping block is rotatably connected to the rotating disk. The rotating disk has an arc-shaped groove, and the other end of each clamping block is provided with a pin that passes through the arc-shaped groove. The guide plate has a guide groove, and the pin passes through the guide groove and is slidably connected to the guide groove. The rotating disk is connected to the first driving assembly.

[0012] Preferably, the two rotating disks are fixedly connected by a fifth connecting shaft, which is arranged in a ring-shaped equidistant array. A second rolling bearing is sleeved on the fifth connecting shaft, and the second rolling bearing contacts the inner wall of the circular hole of the fixed plate.

[0013] The first drive assembly includes a first motor and a drive wheel. The drive wheel is connected to the output of the first motor. The drive wheel is provided with a tooth, which meshes with the second rolling bearing.

[0014] Preferably, the rotating tube mechanism further includes a braking assembly, which includes a second cylinder and a gate plate. The gate plate is rotatably connected to the fixed plate. The output end of the second cylinder is connected to the gate plate to drive the gate plate to swing. A brake ring is provided on the guide plate and is located between the two gate plates.

[0015] Preferably, the pipe cutting mechanism includes a mounting frame, two blade holders, a cutter, two third cylinders, and a second drive assembly. The mounting frame is fixedly connected to the machine body, the two blade holders are rotatably connected to the mounting frame, the cutter is rotatably mounted on the blade holder, the output ends of the two third cylinders are rotatably connected to the blade holder, and the ends of the two third cylinders away from the blade holder are rotatably connected to the machine body. The second drive assembly is mounted on the machine body and is used to drive the two cutters to rotate.

[0016] Preferably, the second drive assembly includes a third motor, a drive pulley, two driven pulleys, and a transmission belt; the third motor is mounted on the machine body, the drive pulley is connected to the output end of the third motor, the two driven pulleys are respectively connected to the two cutters, and the transmission belt passes around the drive pulley and the two driven pulleys.

[0017] Preferably, the second driving assembly further comprises a tension pulley assembly, two first guide wheels and two second guide wheels; the tension pulley assembly is connected with the machine body, the two first guide wheels and the two second guide wheels are rotatably connected with the mounting frame respectively, the transmission belt passes through the tension pulley of the tension pulley assembly, and the first guide wheels and the second guide wheels are in contact with the transmission belt and located outside the transmission belt.

[0018] The one or more technical solutions provided in the application have at least the following technical effects or advantages:

[0019] The pipe cutting machine provided by the application has the advantages that: the pipe body is stably clamped by the clamping assembly of the pipe rotating mechanism, and the pipe body is rotated by the first driving assembly, so that the problem of low efficiency of the existing fixed pipe cutting mode is solved; the pipe cutting mechanism is designed by combining the rotary cutter and the adjustable cutter seat, and the position of the cutter is flexibly adjusted by the driving of the third cylinder, so that the cutting demand of pipes of different specifications is met, and the cutting precision is improved; the cutter can rotate at high speed and stably by the multi-wheel transmission system of the second driving assembly, so that the cutting efficiency and the quality of the cutting surface are significantly improved, and the defects of the cutter in the prior art, such as insufficient stability when the pipe body is completely cut or the pipe body rotates, are overcome.

[0020] It should be understood that the content described in the summary section is not intended to limit the key or important features of the embodiments of the application, nor to limit the scope of the application. Other features of the application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and other features, advantages, and aspects of embodiments of the application will become more apparent upon reading the following detailed description in conjunction with the accompanying drawings, in which like references refer to like elements, and in which:

[0022] Figure 1 A front view structural schematic diagram of the pipe cutting machine according to the embodiment of the application is shown;

[0023] Figure 2 A D-D cross-sectional structural schematic diagram of Figure 1 is shown;

[0024] Figure 3 A side view structural schematic diagram of the first support assembly of the pipe cutting machine according to the embodiment of the application is shown.

[0025] Figure 4 A rear view structural schematic diagram of the first support assembly of the pipe cutting machine according to the embodiment of the application is shown;

[0026] Figure 5 Fig. 6 shows a perspective structural schematic view of a second support assembly of a rotary pipe cutting machine according to an embodiment of the present application;

[0027] Figure 6 Fig. 7 shows a side cross-sectional structural schematic view of a second support assembly of a rotary pipe cutting machine according to an embodiment of the present application;

[0028] Figure 7 Fig. 8 shows a perspective structural schematic view of a pipe rotating mechanism of a rotary pipe cutting machine according to an embodiment of the present application;

[0029] Figure 8 Fig. 9 shows a rear structural schematic view of a pipe rotating mechanism of a rotary pipe cutting machine according to an embodiment of the present application;

[0030] Figure 9 Fig. 10 shows a cross-sectional structural schematic view of a pipe rotating mechanism of a rotary pipe cutting machine according to an embodiment of the present application;

[0031] Figure 10 Fig. 11 shows an exploded structural schematic view of a rotating disc of a pipe rotating mechanism of a rotary pipe cutting machine according to an embodiment of the present application;

[0032] Figure 11 Fig. 12 shows an enlarged schematic view of A of Fig. 11; Figure 7

[0033] Figure 12 Fig. 13 shows a perspective structural schematic view of a pipe cutting mechanism of a rotary pipe cutting machine according to an embodiment of the present application.

[0034] BRIEF DESCRIPTION OF DRAWINGS

[0035] ​1-body, 11-first support assembly, 111-base, 112-roller, 113-bent plate, 114-arc-shaped seat, 115-first adjusting screw, 116-first support wheel, 12-guide channel steel, 13-second support assembly, 131-mounting plate, 1311-mounting part, 1312-first sliding groove, 132-first air cylinder, 1321-positioning block, 133-connection plate, 1331-second sliding groove, 134-second support wheel, 135-first supporting arm, 1351-third connecting shaft, 136-second supporting arm, 137-first connecting shaft, 138-second connecting shaft, 139-second adjusting screw, 2-pipe cutting mechanism, 21-mounting frame, 22-knife seat, 23-knife, 24-third air cylinder, 25-second driving assembly, 251-third motor, 252-driving pulley, 253-following pulley, 254-transmission belt, 255-tension pulley assembly, 256-first guide wheel, 257-second guide wheel, 3-pipe rotating mechanism, 31-fixing plate, 32-first driving assembly, 321-first motor, 322-driving wheel, 3221-poking tooth, 33-clamping assembly, 331-rotating disc, 3311-arc-shaped groove, 3312-fifth connecting shaft, 3313-second rolling bearing, 332-guide plate, 3321-fourth connecting shaft, 3322-first rolling bearing, 3323-guide groove, 3324-brake ring, 333-clamping block, 3331-pivot, 34-brake assembly, 341-second air cylinder, 342-brake plate, 4-pipe body. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] In addition, the term "and / or" herein merely describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0038] As shown in Figures 1 to 12 The rotary cutting pipe cutting machine comprises a body 1, a pipe rotating mechanism 3 and a pipe cutting mechanism 2. The pipe rotating mechanism 3 and the pipe cutting mechanism 2 are both mounted on the body 1 to form an integral structure.

[0039] The tube-spinning mechanism 3 includes a fixed plate 31, a first drive assembly 32, and a clamping assembly 33. The fixed plate 31 is mounted on the machine body 1 and provides mounting support for the clamping assembly 33. The clamping assembly 33 is rotatably connected to the fixed plate 31 and clamps the tube 4. The first drive assembly 32 is also mounted on the machine body 1 and connected to the clamping assembly 33, driving the clamping assembly 33 to rotate the tube 4. The clamping assembly 33 can be adjusted to stably clamp tubes of different diameters or materials, thus adapting to various tube-cutting needs.

[0040] The pipe cutting mechanism 2 includes a rotatable cutter 23, which is used to cut the pipe body 4.

[0041] In use, the operator first places the tube 4 in the clamping position on the machine body 1 and clamps it with the clamping assembly 33 to prevent the tube from shifting or loosening during rotation. Then, the first drive assembly 32 is activated, causing the clamping assembly 33 to rotate the tube 4 at a preset speed. Next, the second drive assembly is activated, controlling the cutter assembly to move along the guide rail and gradually contact the rotating tube 4 to cut it. Because the tube 4 rotates continuously during the cutting process, the cutting efficiency is significantly improved, while ensuring the flatness and precision of the cut surface.

[0042] The rotary pipe cutter of the present invention achieves efficient cutting of small-diameter and thin-walled pipes through the combination of pipe rotation and fixed cutting blade, while also being versatile and easy to operate, and is particularly suitable for pipe cutting scenarios that require high-precision processing.

[0043] In this embodiment, the machine body 1 is provided with a guide channel steel 12, and a first support component 11 is provided along the length of the guide channel steel 12. The first support component 11 can slide along the guide channel steel 12 to support the tube body 4 and guide its movement. During operation, the tube body 4 is placed on the first support component 11, and the first support component 11 is moved along the guide channel steel 12 by a driving device, thereby driving the tube body 4 to move in a predetermined direction.

[0044] like Figure 3 and Figure 4As shown, the structural design of the first support assembly 11 is as follows: it includes a base 111, two roller shafts 112, a bent plate 113, an arc-shaped seat 114, a first adjusting screw 115, and two first support wheels 116. The base 111 is slidingly arranged on the guide channel steel 12, and the bottom thereof is in contact with the guide channel steel 12 through guide rails or rollers to realize stable sliding movement. The two roller shafts 112 are rotationally connected with the base 111 and are in contact with the upper surface of the guide channel steel 12, and the rotation of the roller shafts 112 ensures that the first support assembly 11 can smoothly move along the guide channel steel 12. The bent plate 113 is slidingly connected with the base 111, and its position can be adjusted through an adjusting device. The arc-shaped seat 114 is fixedly connected with the bent plate 113 and is used for mounting and supporting the first support wheels 116. The first adjusting screw 115 is threadedly connected with the base 111 and rotationally connected with the bent plate 113 at one end. When the first adjusting screw 115 is rotated, the bent plate 113 can be driven to slide along the inclined surface of the base 111, so as to adjust the position of the arc-shaped seat 114. The two first support wheels 116 are rotationally connected with the arc-shaped seat 114 and are used for supporting the pipe body 4 and forming a limiting space for the pipe body 4. While supporting the pipe body 4, the first support wheels 116 allow the pipe body 4 to freely rotate around its own axis. In actual use, the pipe body 4 is first placed in the limiting space between the two first support wheels 116. By driving the first support assembly 11 to move along the guide channel steel 12, the two roller shafts 112 are rotated, thereby driving the entire support assembly to move stably. In order to adapt to pipe bodies 4 of different diameters, the position of the bent plate 113 can be adjusted by rotating the first adjusting screw 115, so that the height of the arc-shaped seat 114 and the first support wheels 116 is correspondingly changed. Since the upper surface of the base 111 is inclined, when the bent plate 113 moves in the horizontal direction, the arc-shaped seat 114 will be raised and lowered accordingly, so as to accurately adjust the support height of the pipe body 4.

[0045] The above design ensures that the pipe body 4 can remain stable during support and at the same time realizes free rotation around the axis, meeting the operation requirements of the rotary cutting type cutting. Through the height-adjustable support structure, the device can adapt to pipe bodies of different diameters and materials, improving the versatility and processing precision of the pipe cutting equipment.

[0046] As shown in Figure 5 and Figure 6 In this embodiment, a second support assembly 13 is further arranged on the machine body 1, which is used for stably supporting and height-adjusting the end portion of the pipe body 4 to adapt to the cutting requirements of pipe bodies of different diameters.

[0047] The structure of the second support assembly 13 includes an installation plate 131, a first air cylinder 132, two connecting plates 133, second support wheels 134, two first support arms 135, two second support arms 136, a first connecting shaft 137, a second connecting shaft 138, and a second adjusting screw 139.

[0048] The structure of the second support assembly 13 comprises a mounting plate 131, a first air cylinder 132, two connecting plates 133, two second support wheels 134, two first support arms 135, two second support arms 136, a first connecting shaft 137, a second connecting shaft 138, and a second adjusting screw 139. The mounting plate 131 is fixedly installed on the machine body 1, and two mounting portions 1311 are arranged on the mounting plate 131, each of which is provided with a first sliding groove 1312. The second adjusting screw 139 penetrates through the mounting plate 131 and is threadedly connected therewith, and the height of the assembly is adjusted by rotating the second adjusting screw 139. One end of each of the two second support arms 136 is hingedly installed between the two mounting portions 1311, and the other end thereof is slidably connected with the second sliding groove 1331 through the first connecting shaft 137. The two second support arms 136 are arranged in a cross manner with the first support arms 135, and the crossing portions are hingedly connected. One end of each of the first support arms 135 is connected with the connecting plate 133 through the second connecting shaft 138, and the other end thereof is inserted into the first sliding groove 1312 through a third connecting shaft 1351. The two connecting plates 133 are slidably connected with the first connecting shaft 137 through the second sliding groove 1331, and are fixedly connected with each other through the second connecting shaft 138. The second support wheels 134 are further installed on the connecting plates 133, and are used for supporting the end portion of the pipe body 4 while allowing the pipe body to freely rotate in the axial direction thereof to adapt to the requirements of the rotary cutting operation. The first air cylinder 132 is fixedly installed on the mounting plate 131, and the output end thereof penetrates through the mounting plate 131 and is connected with a positioning block 1321. By controlling the extension and retraction of the first air cylinder 132, the positioning block 1321 can be raised or lowered to position the end portion of the pipe body 4, thereby ensuring the stability of the pipe body during the cutting process.

[0049] In actual use, by controlling the output end of the first air cylinder 132 to extend, the positioning block 1321 is raised to effectively position the end portion of the pipe body 4, thereby preventing the pipe body from axially moving during the cutting process. For pipe bodies 4 with different diameters, the support height is adjusted by rotating the second adjusting screw 139. When the second adjusting screw 139 is rotated, the screw drives the connecting plates 133 to move upward or downward along the vertical direction of the mounting plate 131. The movement of the connecting plates 133 simultaneously drives the first connecting shaft 137 and the second connecting shaft 138 to synchronously move. During the movement of the connecting plates 133, the crossing angle of the first support arms 135 and the second support arms 136 changes. The first connecting shaft 137 slides in the second sliding groove 1331, and the third connecting shaft 1351 slides in the first sliding groove 1312. The change of the crossing angle further drives the second support wheels 134 to be raised or lowered. Through the above adjustment, the second support wheels 134 can be accurately adjusted to an appropriate height according to the diameter of the pipe body 4, thereby providing stable support. At the same time, the rotary connection design of the second support wheels 134 allows the pipe body 4 to freely rotate around the axis thereof during the cutting process, thereby meeting the requirements of the rotary cutting operation.

[0050] As Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 shown, in this embodiment, the structure of the clamping assembly 33 is designed as follows, including two rotating discs 331, two guide plates 332 and three clamping blocks 333. Through the clamping assembly 33, stable clamping of the pipe body 4 can be achieved, and the rotation of the pipe body 4 can be achieved in cooperation with the first driving assembly 32.

[0051] The two rotating discs 331 are respectively rotatably installed on both sides of the fixed plate 31, and each rotating disc 331 is provided with a circular hole for the pipe body 4 to pass through. The diameter of the circular hole is designed to be slightly larger than the outer diameter of the pipe body 4, so that the pipe body 4 can smoothly pass through the rotating disc 331. Two guide plates 332 are arranged on both sides of the two rotating discs 331, and the two guide plates 332 are fixedly connected by three fourth connecting shafts 3321 to form an integral structure. Each fourth connecting shaft 3321 is provided with a first rolling bearing 3322, and the first rolling bearing 3322 is in contact with the inner wall of the circular hole of the rotating disc 331, so as to ensure that the rotating disc 331 can freely rotate relative to the guide plate 332. Three clamping blocks 333 are equidistantly arranged between the two rotating discs 331, and one end of each clamping block 333 is connected with the rotating disc 331 by rotating connection. The rotating disc 331 is provided with an arc-shaped groove 3311, and the other end of the clamping block 333 is connected with the arc-shaped groove 3311 by a pin shaft 3331 and a sliding connection. In addition, the guide plate 332 is provided with a guide groove 3323, and the pin shaft 3331 also penetrates the guide groove 3323 and is in sliding connection with the guide groove 3323. The rotating disc 331 is connected with the first driving assembly 32, and the first driving assembly 32 drives the rotation of the rotating disc 331, and drives the corresponding movement of the clamping block 333 and the pipe body 4.

[0052] The pipe body 4 is inserted through the circular hole on the rotating disc 331 and placed in the middle position of the three clamping blocks 333. At this time, the pipe body 4 is preliminarily aligned with the clamping assembly 33. Start the first drive assembly 32 to drive the rotating disc 331 to rotate at a set speed. The rotation of the rotating disc 331 drives the three clamping blocks 333 to rotate. Since the pin shaft 3331 of the clamping block 333 is in sliding connection with the guide groove 3323, and the pin shaft 3331 also slides in the arc-shaped groove 3311 of the rotating disc 331, the clamping block 333 will produce a swinging motion. During the swinging process, the three clamping blocks 333 gradually approach and clamp the pipe body 4, completing the clamping action. When the clamping block 333 clamps the pipe body 4, the first drive assembly 32 continues to drive the rotating disc 331 to rotate. At this time, the clamping block 333 will drive the pipe body 4 to rotate together through the clamping contact with the pipe body 4. Since the guide plate 332 is in a stationary state or rotates at a speed lower than that of the rotating disc 331, the pin shaft 3331 of the clamping block 333 continues to slide in the guide groove 3323, pushing the guide plate 332 to move relative to the rotating disc 331. With the continuous rotation of the rotating disc 331, the guide plate 332 is finally driven by the swinging of the clamping block 333 and rotates at a speed synchronized with the rotating disc 331. The entire clamping assembly 33 realizes stable clamping and rotating drive of the pipe body 4 through the power input of the first drive assembly 32, ensuring stability and precision during cutting. The clamping block 333 performs swinging motion under the drive of the rotating disc 331, thereby automatically adapting to pipe bodies 4 of different diameters, achieving efficient and reliable clamping.

[0053] In the present embodiment, the two rotating discs 331 are fixedly connected by a plurality of fifth connecting shafts 3312, forming an overall structure. The fifth connecting shafts 3312 are arranged in a ring-shaped equidistant array, and a second rolling bearing 3313 is sleeved on each fifth connecting shaft 3312. The second rolling bearing 3313 is in contact with the inner wall of the circular hole of the fixed plate 31, ensuring that the rotating disc 331 can rotate smoothly relative to the fixed plate 31. The fifth connecting shaft 3312 is designed in a ring-shaped equidistant array, uniformly distributed between the two rotating discs 331, ensuring that the rotating disc 331 is uniformly stressed during rotation. The second rolling bearing 3313 is sleeved on the fifth connecting shaft 3312 and is in contact with the inner wall of the circular hole of the fixed plate 31, forming a relative rotation connection structure between the rotating disc 331 and the fixed plate 31. This design reduces the rotation resistance and improves the rotation stability. Through the rolling contact between the second rolling bearing 3313 and the inner wall of the circular hole of the fixed plate 31, the rotating disc 331 can rotate freely relative to the fixed plate 31, while maintaining the overall rigidity of the structure.

[0054] The first driving assembly 32 comprises a first motor 321 and a driving wheel 322. The output end of the first motor 321 is connected with the driving wheel 322, and a plurality of pawls 3221 are uniformly arranged on the driving wheel 322 for engaging with the second rolling bearing 3313. When the first motor 321 is started, the output end thereof drives the driving wheel 322 to rotate. The pawls 3221 on the driving wheel 322 drive the second rolling bearings 3313 engaged therewith one by one. As the second rolling bearings 3313 are driven, the fifth connecting shaft 3312 rotates to drive the two rotating discs 331 to rotate synchronously. Through the engagement and driving of the pawls 3221 and the second rolling bearings 3313, the rotating power is transmitted from the first motor 321 to the fifth connecting shaft 3312, and then the fifth connecting shaft 3312 drives the two rotating discs 331 to rotate. This driving mode utilizes a simple and efficient mechanical transmission structure, avoids a complex transmission mechanism, and improves the reliability and maintainability of the equipment.

[0055] As shown in Figure 7 and Figure 8 In the present embodiment, the pipe cutting mechanism 2 comprises a mounting frame 21, two knife holders 22, a cutting knife 23, two third cylinders 24 and a second driving assembly 25. Through the cooperation of these components, the precise cutting of the pipe body 4 is realized. The mounting frame 21 is fixedly installed on the machine body 1 and is used to support and connect other components of the pipe cutting mechanism 2. The two knife holders 22 are respectively rotatably connected with the mounting frame 21, and the knife holder 22 can rotate relative to the mounting frame 21 under the limitation of the mounting frame 21 to provide movement support for the cutting knife 23. The cutting knife 23 is rotatably installed on the knife holder 22 and is driven by the driving assembly to provide rotating power for cutting the pipe body 4. The output ends of the two third cylinders 24 are respectively rotatably connected with the knife holders 22, and the other ends thereof are rotatably connected with the machine body 1. By controlling the extension and retraction of the third cylinder 24, the knife holder 22 can be driven to rotate relative to the mounting frame 21 to adjust the position of the cutting knife 23.

[0056] As shown in Figure 1 and Figure 12 In the present embodiment, the pipe cutting mechanism 2 comprises a mounting frame 21, two knife holders 22, a cutting knife 23, two third cylinders 24 and a second driving assembly 25. Through the cooperation of these components, the precise cutting of the pipe body 4 is realized. The mounting frame 21 is fixedly installed on the machine body 1 and is used to support and connect other components of the pipe cutting mechanism 2. The two knife holders 22 are respectively rotatably connected with the mounting frame 21, and the knife holder 22 can rotate relative to the mounting frame 21 under the limitation of the mounting frame 21 to provide movement support for the cutting knife 23. The cutting knife 23 is rotatably installed on the knife holder 22 and is driven by the driving assembly to provide rotating power for cutting the pipe body 4. The output ends of the two third cylinders 24 are respectively rotatably connected with the knife holders 22, and the other ends thereof are rotatably connected with the machine body 1. By controlling the extension and retraction of the third cylinder 24, the knife holder 22 can be driven to rotate relative to the mounting frame 21 to adjust the position of the cutting knife 23.

[0057] The second driving assembly 25 is used to drive the cutter 23 to rotate, and the specific structure comprises a third motor 251, a driving pulley 252, two driven pulleys 253, a transmission belt 254, a tensioner assembly 255, two first guide wheels 256 and two second guide wheels 257.

[0058] The third motor 251 is fixedly installed on the machine body 1, and the output end thereof is connected with the driving pulley 252. The driving pulley 252 is connected with the two driven pulleys 253 through the transmission belt 254, and the two driven pulleys 253 are connected with the two cutters 23 respectively. The transmission belt 254 passes through the driving pulley 252 and the driven pulleys 253 to form a transmission chain. The transmission belt 254 also passes through the tensioner of the tensioner assembly 255 and is in contact with the first guide wheel 256 and the second guide wheel 257. The tensioner assembly 255 is used to adjust the tension of the transmission belt 254 to ensure the transmission efficiency and stability; the first guide wheel 256 and the second guide wheel 257 provide guiding support for the transmission belt 254 to ensure the accuracy of the transmission path. When the third motor 251 is started, the output end thereof drives the driving pulley 252 to rotate, the driving pulley 252 drives the driven pulleys 253 to rotate through the transmission belt 254, and the driven pulleys 253 further drive the cutters 23 to rotate, thereby realizing the high-speed cutting function of the cutters 23. During the cutting process, the output ends of the two third cylinders 24 are controlled to extend or retract to drive the cutter holder 22 to rotate relative to the mounting frame 21, and the two cutters 23 gradually approach the pipe body 4 along with the movement of the cutter holder 22. The combination of the approaching and rotating of the cutters 23 completes the cutting of the pipe body 4.

[0059] Through the multi-stage transmission system of the second driving assembly 25, the cutters 23 can realize stable high-speed rotation, thereby improving the cutting efficiency and accuracy. The rotation of the cutter holder 22 driven by the third cylinder 24 enables the cutters 23 to flexibly adjust the position to adapt to the cutting requirements of the pipe body 4 with different diameters and materials. The cooperation of the tensioner assembly 255 and the guide wheel system ensures that the transmission belt 254 maintains appropriate tension and guidance during the working process, prevents transmission slip or deviation, and improves the running stability of the equipment. The power is transmitted to the cutters 23 through the transmission belt 254, which reduces the complex mechanical transmission mechanism, optimizes the spatial layout of the pipe cutting mechanism 2, and is convenient for maintenance and adjustment.

[0060] The above specific embodiments do not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rotary tube cutting machine, characterized by Include: Machine body (1), pipe mechanism (3) and cut pipe mechanism (2), the pipe mechanism (3) and the cut pipe mechanism (2) are connected with the machine body (1), the pipe mechanism (3) includes fixed plate (31), first drive assembly (32) and clamping assembly (33), the clamping assembly (33) is rotatably connected with the fixed plate (31), the first drive assembly (32) is installed on the machine body (1), the first drive assembly (32) is connected with the clamping assembly (33), for driving the clamping assembly (33) rotates, the clamping assembly (33) is used for clamping pipe body (4), the cut pipe mechanism (2) is used for cutting the pipe body (4); The clamping assembly (33) includes two rotating discs (331), two guide plates (332) and three clamping blocks (333), two rotating discs (331) are rotatably installed on the two sides of the fixed plate (31), the rotating disc (331) is provided with a circular hole for the pipe body (4) to pass through, two guide plates (332) are arranged on the two sides of the two rotating discs (331), two guide plates (332) are fixedly connected by three fourth connecting shafts (3321), the first rolling bearing (3322) is arranged on the three fourth connecting shafts (3321), the first rolling bearing (3322) is in contact with the inner wall of the circular hole of the rotating disc (331), two clamping blocks (333) are equidistantly arranged between the two rotating discs (331), one end of three clamping blocks (333) is rotatably connected with the rotating disc (331), the rotating disc (331) is provided with an arc-shaped groove (3311), the other end of three clamping blocks (333) is provided with a pin shaft (3331), the pin shaft (3331) penetrates the arc-shaped groove (3311), the guide plate (332) is provided with a guide groove (3323), the pin shaft (3331) passes through the guide groove (3323) and is slidably connected with the guide groove (3323), the rotating disc (331) is connected with the first drive assembly (32); Two rotating discs (331) are fixedly connected by fifth connecting shafts (3312), the fifth connecting shafts (3312) are annular equidistant arrays, the second rolling bearing (3313) is arranged on the fifth connecting shaft (3312), and the second rolling bearing (3313) is in contact with the inner wall of the circular hole of the fixed plate (31); The first drive assembly (32) includes a first motor (321) and a drive wheel (322), the drive wheel (322) is connected with the output of the first motor (321), the drive wheel (322) is provided with a gear (3221), and the gear (3221) is meshedly connected with the second rolling bearing (3313). The pipe cutting mechanism (2) comprises a mounting frame (21), two cutter seats (22), cutting knives (23), two third air cylinders (24) and a second driving assembly (25), the mounting frame (21) is fixedly connected with the machine body (1), the two cutter seats (22) are rotationally connected with the mounting frame (21), the cutting knives (23) are rotationally installed on the cutter seats (22), the output ends of the two third air cylinders (24) are rotationally connected with the cutter seats (22), the ends, away from the cutter seats (22), of the two third air cylinders (24) are rotationally connected with the machine body (1), and the second driving assembly (25) is installed on the machine body (1) and is used for driving the two cutting knives (23) to rotate. The second driving assembly (25) comprises a third motor (251), a driving pulley (252), two driven pulleys (253) and a transmission belt (254), the third motor (251) is installed on the machine body (1), the driving pulley (252) is connected with the output end of the third motor (251), the two driven pulleys (253) are connected with the two cutting knives (23) respectively, and the transmission belt (254) passes through the driving pulley (252) and the two driven pulleys (253).

2. The rotary cut pipe cutting machine of claim 1, wherein, The machine body (1) is provided with a guide channel steel (12), the guide channel steel (12) is provided with a first supporting assembly (11), and the first supporting assembly (11) can move along the guide channel steel (12).

3. The rotary cut pipe cutting machine of claim 2, wherein, The first supporting assembly (11) comprises a base (111), two roller shafts (112), a bending plate (113), an arc-shaped seat (114), a first adjusting screw (115) and two first supporting wheels (116), the two roller shafts (112) are rotationally connected with the base (111), the base (111) is slidingly arranged on the guide channel steel (12), the two roller shafts (112) are in contact with the upper surface of the guide channel steel (12), the bending plate (113) is slidingly connected with the base (111), the upper surface of the base (111) is an inclined surface, the first adjusting screw (115) is threadedly connected with the base (111), one end of the first adjusting screw (115) is rotationally connected with the bending plate (113), the arc-shaped seat (114) is fixedly connected with the bending plate (113), the two first supporting wheels (116) are rotationally connected with the arc-shaped seat (114), and the two first supporting wheels (116) are used for supporting the pipe body (4) and form a limiting space of the pipe body (4) between the two first supporting wheels (116).

4. The rotary cut pipe cutting machine of claim 1, wherein, The machine body (1) is further provided with a second supporting assembly (13), the second supporting assembly (13) comprises a mounting plate (131), a first cylinder (132), two connecting plates (133), a second supporting wheel (134), two first supporting arms (135), two second supporting arms (136), a first connecting shaft (137), a second connecting shaft (138) and a second adjusting screw (139), the mounting plate (131) is fixedly installed on the machine body (1), two mounting portions (1311) are arranged on the mounting plate (131), first sliding grooves (1312) are arranged on the two mounting portions (1311), the two second adjusting screws (139) pass through the mounting plate (131) and are in threaded connection with the mounting plate (131), one end of the two second supporting arms (136) is rotatably installed between the two mounting portions (1311), the first connecting shaft (137) passes through the other end of the two second supporting arms (136) and is rotatably connected with the other end of the two second supporting arms (136), second sliding grooves (1331) are arranged on the two connecting plates (133), the first connecting shaft (137) passes through the two second sliding grooves (1331), the second connecting shaft (138) is fixedly installed between the two connecting plates (133), one end of the two first supporting arms (135) is rotatably connected with the second connecting shaft (138), the two second supporting arms (136) are arranged in cross with the first supporting arms (135), and the two second supporting arms (136) are hingedly connected with the two first supporting arms (135) at the cross positions, the other end of the two first supporting arms (135) is connected with a third connecting shaft (1351), the third connecting shaft (1351) extends into the first sliding groove (1312), the second supporting wheel (134) is rotatably connected with the two connecting plates (133), the first cylinder (132) is fixedly connected with the mounting plate (131), and the output of the first cylinder (132) passes through the mounting plate (131) and is connected with a positioning block (1321).

5. The rotary cut pipe cutting machine of claim 1, wherein, The spiral pipe mechanism (3) further comprises a brake assembly (34), the brake assembly (34) comprises a second cylinder (341) and a brake plate (342), the brake plate (342) is rotatably connected with the fixed plate (31), the output end of the second cylinder (341) is connected with the brake plate (342), for driving the brake plate (342) to swing, the guide plate (332) is provided with a brake ring (3324), and the brake ring (3324) is located between the two brake plates (342).

6. The rotary cut pipe cutting machine of claim 1, wherein, The second driving assembly (25) further comprises a tension pulley assembly (255), two first guide wheels (256) and two second guide wheels (257); the tension pulley assembly (255) is connected with the machine body (1), the two first guide wheels (256) and the two second guide wheels (257) are rotatably connected with the mounting frame (21) respectively, the transmission belt (254) passes through the tension pulley of the tension pulley assembly (255), the first guide wheels (256) and the second guide wheels (257) are in contact with the transmission belt (254) and are located on the outer side of the transmission belt (254).

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