A metal pipe cutting machine tool based on rotary disc cutter

Abstract

The application relates to the technical field of metal cutting, and discloses a metal pipe cutting machine tool based on a rotary disc cutter, which comprises a conveying belt, the top of the conveying belt is provided with a linear motion module, a cutting mechanism is installed on the linear motion module, and a triggering mechanism is arranged on one side of the cutting mechanism. In the application, through the cooperation of the conveying belt, the linear motion module, the cutting mechanism and the triggering mechanism, automatic and stable switching between the vertical and inclined working postures of the disc cutter is realized, so that straight cutting and bevel cutting of the metal pipe can be sequentially completed in the same machine tool, the same working position and a single conveying period, finished pipe fittings with one straight end and one bevel end are obtained, traditional multi-process and multi-device machining is avoided, the production rhythm is significantly shortened, the machining efficiency is improved, and the structure is compact and the cost is controllable since the switching action is completely driven by the movement logic of the machine tool itself without an additional angle adjusting power source or manual intervention.

Description

Technical Field

[0001] This invention relates to the field of metal cutting technology, and more specifically to a metal tube cutting machine tool based on a rotary disc cutter. Background Technology

[0002] In the field of metal pipe processing, the cutting and shaping of round pipe ends is a fundamental process for pipe connection, welding, and structural assembly. Depending on the application, pipe ends often need to be machined into straight (perpendicular to the axis) or beveled (inclined to the axis) shapes. Beveling is more conducive to subsequent welding penetration, but requires high consistency in bevel angle and direction. Currently, conventional metal round pipe cutting equipment mostly uses abrasive wheel saws, band saws, or laser cutting methods. However, these devices typically only achieve a single type of cut. If different cut shapes are required at both ends of the same pipe, the process must be done step-by-step. For example, straight cutting might be completed on one machine, followed by secondary clamping and positioning on another beveling machine. This not only involves lengthy processes and significant auxiliary time, but repeated positioning also introduces cumulative errors, affecting end-face quality and dimensional consistency. Even if a few CNC machine tools have angle adjustment functions, their cutter head deflection mechanisms are often complex and costly. Furthermore, the adjustment process relies on manual adjustment or additional servo drive units, making it difficult to efficiently match the production line pace. Frequent angle switching also easily reduces positioning accuracy.

[0003] Furthermore, in existing cutting processes, laser cutting equipment has high investment and maintenance costs, and strict requirements for power supply and cooling systems, which limits its large-scale application by small and medium-sized enterprises. Therefore, there is an urgent need for a machine tool that can automatically switch between straight and bevel cutting under single-station, continuous conveying conditions to simplify the process and improve production efficiency. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a metal tube cutting machine tool based on a rotary disc cutter to solve the problems existing in the background art.

[0005] The present invention provides the following technical solution: a metal tube cutting machine tool based on a rotary disc cutter, comprising a conveyor belt, a linear motion module disposed on the top of the conveyor belt, a cutting mechanism mounted on the linear motion module, a triggering mechanism disposed on one side of the cutting mechanism, the conveyor belt being used to intermittently transport metal tubes to a preset cutting position, the linear motion module being used to drive the cutting mechanism to reciprocate along the horizontal direction, the cutting mechanism being used to cut the metal tubes, and being configured with two cutting postures: straight cutting and bevel cutting, and the triggering mechanism being used to automatically control the cutting mechanism to switch between the two cutting postures during the movement of the cutting mechanism.

[0006] Preferably, the cutting mechanism includes a mounting frame, a guide rod, a guide bracket, and a blade holder. A fixed bracket is fixedly connected to the mounting frame, the guide rod is fixedly mounted on the mounting frame, the guide bracket is sleeved on the surface of the guide rod, a compression spring is sleeved on the surface of the guide rod, the axis of the guide rod is arranged vertically, and the elastic force of the compression spring is vertically downward.

[0007] Preferably, a rotating shaft is rotatably mounted on the tool holder, a disc blade is fixedly connected to the surface of the rotating shaft, an extension frame is fixedly connected to the tool holder, a rotating rod is fixedly connected to the extension frame, and both ends of the rotating rod are rotatably mounted on the fixed frame.

[0008] Preferably, a motor is fixedly mounted on the tool holder, and a power transmission component is provided between the motor and the rotating shaft.

[0009] Preferably, a mounting rod is fixedly installed on the guide frame, and a connecting rod assembly is provided at each end of the mounting rod. A motion component is provided on the top of the guide frame.

[0010] Preferably, the linkage assembly includes a first linkage and a second linkage, one end of the first linkage is rotatably connected to the mounting rod, the other end of the first linkage is rotatably connected to one end of the second linkage, and the other end of the second linkage is fixedly connected to the rotating rod.

[0011] Preferably, the motion component includes a stabilizing frame and a receiving frame. The bottom of the stabilizing frame is fixedly connected to the top of the guide frame. The top of the stabilizing frame has an internal groove, and a sliding rod is fixedly connected in the internal groove. The axis of the sliding rod is arranged horizontally, and the receiving frame is sleeved on the surface of the sliding rod.

[0012] Preferably, a fixed shaft is fixedly connected to the receiving frame, and a roller is rotatably installed at one end of the fixed shaft. The receiving frame is also provided with a first inclined surface and a second inclined surface.

[0013] Preferably, the triggering mechanism includes a trigger frame and a bending rod, and the trigger frame is provided with a reset inclined surface, a positioning plane and a trigger inclined surface.

[0014] Preferably, the bending rod is fixedly installed on the trigger frame, one end of the bending rod is fixedly connected to a first fixing block, the other end of the bending rod is fixedly connected to a second fixing block, the first fixing block is provided with a third inclined surface, and the second fixing block is provided with a fourth inclined surface.

[0015] The beneficial effects of this invention are: In this invention, the coordinated operation of the conveyor belt, linear motion module, cutting mechanism, and triggering mechanism enables the automatic and smooth switching of the disc blade between vertical and inclined working postures. This allows for the sequential straight-end cutting and beveling of metal tubes within the same machine tool, at the same workstation, and in a single conveying cycle, resulting in finished tubes with one straight end and one beveled end. This avoids the need for traditional multi-process and multi-equipment manufacturing, significantly shortening the production cycle and improving processing efficiency. Furthermore, since the switching action is entirely driven by the machine tool's own motion logic, no additional angle adjustment power source or manual intervention is required, resulting in a compact structure and controllable cost. Furthermore, the preload of the compression spring during blade posture transition ensures the smoothness and repeatability of the guide frame movement, guaranteeing the consistency of the angle between the straight and beveled cut surfaces, and ensuring that the cutting quality is not affected by the operator's skill level. In addition, the disc blade is driven by a motor to rotate at high speed, resulting in uniform cutting force during cutting. Combined with the intermittent feeding of the conveyor belt and the precise feeding of the linear motion module, it can adapt to pipes of different diameters and wall thicknesses, making it widely applicable. Moreover, the magnetic attraction between the receiving frame in the motion component and the magnets at both ends of the built-in groove ensures that the position of the motion component is locked after each switch, avoiding interference from machine tool vibration on cutting accuracy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention before straight cutting.

[0018] Figure 2 This is a schematic diagram of the overall structure during the straight cutting process of the present invention.

[0019] Figure 3 This is a schematic diagram of the overall structure during the beveling process of the present invention.

[0020] Figure 4 This is a schematic diagram of the cutting mechanism of the present invention.

[0021] Figure 5 This is a schematic diagram of the mounting bracket, guide rod, and guide frame structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the tool holder, connecting rod assembly, and motion assembly of the present invention.

[0023] Figure 7 This is a schematic diagram of the motion component structure of the present invention.

[0024] Figure 8 This is a schematic diagram of the triggering mechanism of the present invention.

[0025] Figure 9 This is a schematic diagram of the structure of the first fixing block and the second fixing block of the present invention.

[0026] The attached figures are labeled as follows: 1. Conveyor belt; 2. Linear motion module; 3. Cutting mechanism; 31. Mounting frame; 311. Fixing frame; 32. Guide rod; 321. Compression spring; 33. Guide frame; 331. Mounting rod; 34. Tool holder; 341. Rotating shaft; 342. Extension frame; 35. Disc blade; 36. Motor; 37. Rotating rod; 38. Linkage assembly; 381. First link; 382. Second link; 39. Motion component 391. Stabilizing frame; 392. Built-in groove; 393. Sliding rod; 394. Receiving frame; 395. Fixed shaft; 396. Roller; 397. First inclined plane; 398. Second inclined plane; 4. Triggering mechanism; 41. Triggering frame; 411. Reset inclined plane; 412. Positioning plane; 413. Triggering inclined plane; 42. Bending rod; 43. First fixing block; 431. Third inclined plane; 44. Second fixing block; 441. Fourth inclined plane. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Reference Figures 1 to 3 This invention provides a metal tube cutting machine tool based on a rotary disc cutter, including a conveyor belt 1, a linear motion module 2 mounted on the top of the conveyor belt 1, a cutting mechanism 3 mounted on the linear motion module 2, and a triggering mechanism 4 mounted on one side of the cutting mechanism 3. The conveyor belt 1 is used to intermittently transport the metal tube to a preset cutting position, the linear motion module 2 is used to drive the cutting mechanism 3 to reciprocate horizontally, the cutting mechanism 3 is used to cut the metal tube, and is equipped with two cutting postures: straight cutting and bevel cutting. The triggering mechanism 4 is used to automatically control the cutting mechanism 3 to switch between the two cutting postures during its movement.

[0029] Reference Figures 1 to 7The cutting mechanism 3 includes a mounting frame 31, a guide rod 32, a guide frame 33, and a blade holder 34. A fixing frame 311 is fixedly connected to the mounting frame 31. The guide rod 32 is fixedly mounted on the mounting frame 31. The guide frame 33 is sleeved on the surface of the guide rod 32. A compression spring 321 is sleeved on the surface of the guide rod 32. The axis of the guide rod 32 is arranged vertically, and the elastic force of the compression spring 321 is vertically downward. The vertical arrangement of the guide rod 32 provides precise lifting guidance for the guide frame 33, ensuring the consistency of the movement direction. The elastic force of the compression spring 321 is always vertically downward, which not only keeps the guide frame 33 in a low position when not in operation, but also provides preload during operation, making the lifting and lowering of the guide frame 33 smooth, and automatically resetting after the external force is removed.

[0030] A rotating shaft 341 is rotatably mounted on the tool holder 34. A disc blade 35 is fixedly connected to the surface of the rotating shaft 341. An extension frame 342 is fixedly connected to the tool holder 34, and a rotating rod 37 is fixedly connected to the extension frame 342. Both ends of the rotating rod 37 are rotatably mounted on a fixed frame 311. A motor 36 is fixedly mounted on the tool holder 34, and a power transmission component is provided between the motor 36 and the rotating shaft 341. The motor 36 drives the rotating shaft 341 and the disc blade 35 to rotate at high speed through the power transmission component, ensuring the quality of the cut. The rotating rod 37 is rotatably mounted on the fixed frame 311, allowing the tool holder 34 and the disc blade 35 to rotate around the axis of the rotating rod 37, thereby achieving flexible adjustment of the blade posture.

[0031] A mounting rod 331 is fixedly installed on the guide frame 33. A connecting rod assembly 38 is provided at each end of the mounting rod 331, and a motion assembly 39 is provided on the top of the guide frame 33. The mounting rod 331 serves as a connecting bridge between the guide frame 33 and the connecting rod assembly 38, and can synchronously transmit the lifting and lowering movement of the guide frame 33 to the connecting rod assemblies 38 on both sides to ensure symmetrical left and right movements and balanced force. The motion assembly 39 is located on the top of the guide frame 33 to facilitate cooperation with the triggering mechanism 4.

[0032] The linkage assembly 38 includes a first linkage 381 and a second linkage 382. One end of the first linkage 381 is rotatably connected to the mounting rod 331, and the other end of the first linkage 381 is rotatably connected to one end of the second linkage 382. The other end of the second linkage 382 is fixedly connected to the rotating rod 37. The first linkage 381 and the second linkage 382 form a hinged linkage structure, which can accurately convert the linear lifting displacement of the guide frame 33 into the rotational motion of the rotating rod 37. The motion transmission is smooth, ensuring rapid and accurate attitude switching of the disc blade 35.

[0033] The motion component 39 includes a stabilizing frame 391 and a receiving frame 394. The bottom of the stabilizing frame 391 is fixedly connected to the top of the guide frame 33. The top of the stabilizing frame 391 has an internal groove 392. A sliding rod 393 is fixedly connected in the internal groove 392. The axis of the sliding rod 393 is arranged horizontally. The receiving frame 394 is sleeved on the surface of the sliding rod 393. A fixed shaft 395 is fixedly connected to the receiving frame 394. A roller 396 is rotatably installed at one end of the fixed shaft 395. The receiving frame 394 is also provided with a first inclined surface 397 and a second inclined surface 398. The sliding rod 393 in the built-in groove 392 precisely guides the horizontal sliding of the receiving frame 394; the roller 396 is rotatably mounted through the fixed shaft 395, and has low rolling friction and low wear when in contact with the triggering mechanism 4; the first inclined surface 397 and the second inclined surface 398 on the receiving frame 394 are used to cooperate with the triggering mechanism 4 to achieve bidirectional pushing, so that the receiving frame 394 can automatically slide and accurately position in the horizontal direction, and with the magnetic attraction at both ends of the built-in groove 392, the position can be effectively locked.

[0034] In use, the linear motion module 2 drives the cutting mechanism 3 to move horizontally in a linear motion. Initially, the disc blade 35 remains vertically arranged, and the motor 36 drives the rotating shaft 341 to rotate, causing the disc blade 35 to rotate at high speed. As the cutting mechanism 3 moves forward, it passes through the metal tube, completing a straight cut. Subsequently, the linear motion module 2 continues to move forward, and the receiving frame 394 in the motion component 39 is pushed by the triggering mechanism 4, sliding along the sliding rod 393 from one end of the built-in groove 392 to the other end, and is attracted and positioned by a magnet. Then, the linear motion module 2 moves in the opposite direction, and the triggering mechanism 4 interacts with the roller 396, pushing the roller 396 to rise, which in turn drives the guide frame 33 to rise along the guide rod 32, and the compression spring 321 is compressed and stores energy. The rise of the guide frame 33 drives the rotating rod 37 to rotate through the mounting rod 331 and the connecting rod assembly 38, which in turn causes the blade holder 34 and the disc blade 35 to swing around the axis of the rotating rod 37, smoothly switching from a vertical posture to an inclined posture. While the triggering mechanism 4 supports the roller 396, the disc blade 35 maintains its tilted posture and passes through the metal tube again, completing the beveling cut. Afterward, the triggering mechanism 4 releases its support for the roller 396, the compression spring 321 releases its elasticity, pushing the guide frame 33 downward. Through the connecting rod assembly 38, the disc blade 35 automatically returns to its vertical position. During the return stroke, the triggering mechanism 4 again pushes the receiving frame 394 back to its initial end along the sliding rod 393, where it is attracted by the magnet, completing the overall reset.

[0035] In summary, the cutting mechanism 3, within a single conveying cycle, requires no additional power source or manual intervention. Relying solely on the automatic coordination of the trigger mechanism 4 and the motion component 39, it smoothly switches the disc blade 35 between vertical and inclined postures, sequentially cutting straight and beveled edges onto the metal tube to obtain finished pipe fittings with one straight end and one beveled end. This process simplifies the traditional multi-equipment, multi-process manufacturing flow, shortens the production cycle, and improves processing efficiency. Simultaneously, the preload provided by the compression spring 321 ensures the smoothness and repeatability of the guide frame 33's lifting and lowering, guaranteeing consistent cutting angles and stable, reliable cutting quality. Furthermore, the magnetic attraction and locking between the receiving frame 394 and the magnets at both ends of the built-in groove 392 in the motion component 39 effectively prevents machine tool vibration from interfering with posture maintenance, improving cutting accuracy. The overall structure is compact, cost-effective, and adaptable to pipes of different diameters and wall thicknesses, demonstrating good versatility and practical value.

[0036] Reference Figures 1 to 9 The triggering mechanism 4 includes a trigger frame 41 and a bending rod 42. The trigger frame 41 is provided with a reset inclined surface 411, a positioning plane 412 and a trigger inclined surface 413. The bending rod 42 is fixedly installed on the trigger frame 41. One end of the bending rod 42 is fixedly connected to a first fixing block 43 and the other end of the bending rod 42 is fixedly connected to a second fixing block 44. The first fixing block 43 is provided with a third inclined surface 431 and the second fixing block 44 is provided with a fourth inclined surface 441.

[0037] In summary, the triggering inclined surface 413, positioning plane 412, and reset inclined surface 411 on the trigger frame 41 of the triggering mechanism 4, together with the first fixing block 43 and the second fixing block 44 at both ends of the bending rod 42 and their third inclined surface 431 and fourth inclined surface 441, form an orderly linkage with the roller 396 of the motion component 39 and the first inclined surface 397 and second inclined surface 398 on the receiving frame 394. During the reciprocating motion of the cutting mechanism 3 driven by the linear motion module 2, the triggering inclined surface 413 pushes the roller 396 upward, realizing the smooth switching of the disc blade 35 from a vertical to an inclined posture; the positioning plane 412 ensures that the inclined posture remains stable, completing the bevel cutting; the reset inclined surface 411, together with the compression spring 321, releases energy, causing the disc blade 35 to automatically return to the upright position. At the same time, the third inclined surface 431 and the fourth inclined surface 441 respectively push the receiving frame 394 to slide horizontally along the sliding rod 393, and are attracted and positioned by the magnets at both ends of the built-in groove 392, ensuring that the position of the motion component 39 is locked before and after each switching. The precise alignment of each bevel ensures the consistency of the cutting angle and the stability of the cutting quality.

[0038] The working principle of this invention is as follows: Conveyor belt 1 transports the metal tube. When the metal tube reaches the preset position, conveyor belt 1 stops transporting. Then, linear motion module 2 pulls cutting mechanism 3 (the disc blade 35 of cutting mechanism 3 is in a vertical arrangement) to move horizontally in a straight line. During this process, the roller 396 of motion component 39 does not interact with reset inclined surface 411, positioning plane 412 and trigger inclined surface 413. The roller 396 fully avoids trigger frame 41. Motor 36 drives rotating shaft 341 to rotate around its own axis through power transmission component. Rotating shaft 341 rotates and drives disc blade 35 to rotate synchronously around the axis of rotating shaft 341. When disc blade 35 passes through metal tube, it forms a straight cut surface.

[0039] After the disc blade 35 passes through the metal tube, the linear motion module 2 continues to pull the cutting mechanism 3 to move horizontally in a linear motion. The conveyor belt 1 then transports the metal tube to the preset position again. During this process, the second inclined surface 398 on the receiving frame 394 contacts the fourth inclined surface 441 on the second fixed block 44. Since the position of the second fixed block 44 remains fixed, the second inclined surface 398 slides along the fourth inclined surface 441. At the same time, the receiving frame 394 and the roller 396 move synchronously along the sliding rod 393. The receiving frame 394 moves from one end of the built-in groove 392 to the other end of the built-in groove 392, and the receiving frame 394 is attracted and attached to the magnet on the groove wall at the other end of the built-in groove 392, maintaining the stability of the receiving frame 394.

[0040] Subsequently, the linear motion module 2 pulls the cutting mechanism 3 in a reverse linear motion. During this process, the roller 396 first contacts the trigger inclined surface 413 and rolls upward along the trigger inclined surface 413. At the same time, the motion component 39 and the guide frame 33 move upward synchronously along the guide rod 32. The compression spring 321 contracts and increases its elasticity under the compression of the guide frame 33. The movement of the guide frame 33 drives the second connecting rod 382 to rotate synchronously around the axis of the rotating rod 37 through the mounting rod 331 and the first connecting rod 381. The rotating rod 37 rotates synchronously around its own axis. The rotation of the rotating rod 37 drives the tool holder 34 and the disc blade 35 to rotate synchronously around the axis of the rotating rod 37. The disc blade 35 changes from a vertical arrangement to an inclined arrangement. In the oblique arrangement state, the roller 396 leaves the triggering inclined surface 413 and rolls along the positioning plane 412. During the rolling of the roller 396 along the positioning plane 412, the position of the disc blade 35 remains unchanged and the disc blade 35 passes through the metal tube, forming a beveled cut surface, thus obtaining a tube with one straight end and one beveled end. After leaving the positioning plane 412, the roller 396 rolls down along the reset inclined surface 411. During the rolling of the roller 396 down along the reset inclined surface 411, the elastic force of the compression spring 321 is gradually released. The elastic force of the compression spring 321 drives the motion component 39 and the guide frame 33 to move down along the guide rod 32 as a whole. Similarly, the disc blade 35 returns from the oblique arrangement state to the vertical arrangement state.

[0041] Afterwards, the linear motion module 2 continues to pull the cutting mechanism 3 to move as a whole and return to the initial position. During this process, the first inclined surface 397 on the receiving frame 394 contacts the third inclined surface 431 on the first fixed block 43. Since the position of the first fixed block 43 remains fixed, the first inclined surface 397 slides along the third inclined surface 431. At the same time, the receiving frame 394 and the roller 396 move synchronously along the sliding rod 393. The receiving frame 394 returns from the other end of the built-in groove 392 to one end of the built-in groove 392, and the receiving frame 394 is attracted and attached to the magnet on the groove wall at one end of the built-in groove 392, maintaining the stability of the receiving frame 394. The receiving frame 394 and the roller 396 also return to the initial position.

[0042] Afterwards, conveyor belt 1 transports the metal tube to the preset position, and repeats the above steps. In this way, the metal tube can be cut into multiple pipe fittings with one straight end and one beveled end.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A metal tube cutting machine tool based on a rotary disc cutter, comprising a conveyor belt (1), characterized in that, The top of the conveyor belt (1) is provided with a linear motion module (2), and a cutting mechanism (3) is installed on the linear motion module (2). A triggering mechanism (4) is provided on one side of the cutting mechanism (3). The conveyor belt (1) is used to intermittently transport metal tubes to a preset cutting position. The linear motion module (2) is used to drive the cutting mechanism (3) to move back and forth in the horizontal direction. The cutting mechanism (3) is used to cut the metal tubes and is provided with two cutting postures: straight cutting and bevel cutting. The triggering mechanism (4) is used to automatically control the cutting mechanism (3) to switch between the two cutting postures during the movement of the cutting mechanism (3).

2. The metal tube cutting machine tool based on a rotary disc cutter according to claim 1, characterized in that, The cutting mechanism (3) includes a mounting frame (31), a guide rod (32), a guide frame (33), and a knife holder (34). A fixed frame (311) is fixedly connected to the mounting frame (31). The guide rod (32) is fixedly installed on the mounting frame (31). The guide frame (33) is sleeved on the surface of the guide rod (32). A compression spring (321) is sleeved on the surface of the guide rod (32). The axis of the guide rod (32) is arranged vertically, and the elastic force of the compression spring (321) is vertically downward.

3. A metal tube cutting machine tool based on a rotary disc cutter according to claim 2, characterized in that, A rotating shaft (341) is rotatably mounted on the tool holder (34). A disc blade (35) is fixedly connected to the surface of the rotating shaft (341). An extension frame (342) is fixedly connected to the tool holder (34). A rotating rod (37) is fixedly connected to the extension frame (342). Both ends of the rotating rod (37) are rotatably mounted on the fixed frame (311).

4. A metal tube cutting machine tool based on a rotary disc cutter according to claim 3, characterized in that, A motor (36) is fixedly installed on the tool holder (34), and a power transmission component is provided between the motor (36) and the rotating shaft (341).

5. A metal tube cutting machine tool based on a rotary disc cutter according to claim 4, characterized in that, A mounting rod (331) is fixedly installed on the guide frame (33), and a connecting rod assembly (38) is provided at each end of the mounting rod (331). A motion assembly (39) is provided on the top of the guide frame (33).

6. A metal tube cutting machine tool based on a rotary disc cutter according to claim 5, characterized in that, The linkage assembly (38) includes a first linkage (381) and a second linkage (382). One end of the first linkage (381) is rotatably connected to the mounting rod (331), and the other end of the first linkage (381) is rotatably connected to one end of the second linkage (382). The other end of the second linkage (382) is fixedly connected to the rotating rod (37).

7. A metal tube cutting machine tool based on a rotary disc cutter according to claim 5, characterized in that, The motion component (39) includes a stabilizing frame (391) and a receiving frame (394). The bottom of the stabilizing frame (391) is fixedly connected to the top of the guide frame (33). The top of the stabilizing frame (391) has an internal groove (392). A sliding rod (393) is fixedly connected in the internal groove (392). The axis of the sliding rod (393) is arranged horizontally. The receiving frame (394) is sleeved on the surface of the sliding rod (393).

8. A metal tube cutting machine tool based on a rotary disc cutter according to claim 7, characterized in that, A fixed shaft (395) is fixedly connected to the receiving frame (394), and a roller (396) is rotatably installed at one end of the fixed shaft (395). A first inclined surface (397) and a second inclined surface (398) are also provided on the receiving frame (394).

9. A metal tube cutting machine tool based on a rotary disc cutter according to claim 1, characterized in that, The triggering mechanism (4) includes a trigger frame (41) and a bending rod (42). The trigger frame (41) is provided with a reset inclined surface (411), a positioning plane (412) and a trigger inclined surface (413).

10. A metal tube cutting machine tool based on a rotary disc cutter according to claim 9, characterized in that, The bent rod (42) is fixedly installed on the trigger frame (41). One end of the bent rod (42) is fixedly connected to a first fixing block (43), and the other end of the bent rod (42) is fixedly connected to a second fixing block (44). A third inclined surface (431) is provided on the first fixing block (43), and a fourth inclined surface (441) is provided on the second fixing block (44).

Images