A metal pipe cutting machine

Abstract

This invention relates to the field of metal pipe cutting equipment technology. A metal pipe cutting machine includes a machine body, a controller mounted on one side of the machine body (the controller employs a core control unit including but not limited to a PCB control motherboard), support legs fixedly connected to the bottom of the machine body, and a cutting device for cutting materials on the upper surface of the machine body. The cutting device includes a guide rail fixed to the upper surface of the machine body for guidance, a slider slidably connected to the guide rail, a mounting frame fixedly connected to the upper surface of the slider, a motor fixedly connected to the side of the mounting frame, and a blade mounted on the output end of the motor. This metal pipe cutting machine avoids the problem of the equipment needing to perform step-by-step sequential actions, such as first driving the clamping structure and then starting the cutting structure to perform the feeding operation. Because the two core actions of clamping and cutting cannot be performed in parallel, the processing cycle of a single pipe is significantly lengthened, directly affecting the overall processing efficiency of the equipment.

Description

Technical Field

[0001] This invention belongs to the technical field of metal pipe cutting equipment, and specifically relates to a metal pipe cutting machine. Background Technology

[0002] Metal pipe cutting machines are specialized automated cutting equipment designed for precise cutting of various metal pipes to a fixed length and batch processing. They are fully compatible with various metal pipes such as aluminum alloy pipes, copper pipes, and galvanized pipes. They are an indispensable basic core equipment in the fields of metal pipe deep processing, machinery manufacturing, and engineering construction, and are the core basic equipment for promoting the upgrading of the metal pipe processing industry towards standardization, automation, efficiency, and high precision.

[0003] To ensure the accuracy of the cutting surface and prevent the pipe from shifting or deflecting during cutting, existing metal pipe cutting machines all have a clamping structure with an independent drive unit installed immediately next to the cutting station to lock and position the pipe in the cutting area. To avoid poor cutting accuracy caused by incomplete clamping, the equipment needs to perform step-by-step serial actions. First, the clamping structure is driven to lock and position the pipe. After the clamping is fully in place, the cutting structure is started to perform the feeding operation. Because the two core actions of clamping and cutting cannot be carried out in parallel, the processing cycle of a single pipe is greatly lengthened, which directly affects the overall processing efficiency of the equipment in the case of large-scale continuous production. Summary of the Invention

[0004] The purpose of this invention is to provide a metal pipe cutting machine with a simple structure and reasonable design in order to solve the above problems.

[0005] The present invention achieves the above objectives through the following technical solutions: A metal pipe cutting machine includes a machine body. A controller is mounted on one side of the machine body. The controller employs a core control unit, including but not limited to a PCB control motherboard. Support legs are fixedly connected to the lower part of the machine body. A cutting device for cutting materials is provided on the upper surface of the machine body. The cutting device includes a guide rail fixed to the upper surface of the machine body for guidance. A slider is slidably connected to the guide rail. A mounting bracket is fixedly connected to the upper surface of the slider. A motor is fixedly connected to the side of the mounting bracket. A blade is mounted on the output end of the motor, and the motor drives the blade. The blade rotates, allowing it to cut the contacted pipe. A cylinder is fixedly connected to the upper surface of the machine body, and a connecting frame is fixedly connected between the cylinder and the mounting frame. The cooperation between the cylinder and the connecting frame allows the mounting frame to move in a specified direction, thereby driving the mounting frame, motor one, and blade to move. The mounting frame is equipped with a main clamping assembly for holding materials, and a secondary clamping assembly is equipped on the guide rail to assist the main clamping assembly. A protective cover is fixedly connected to the upper surface of the machine body, and a positioning shaft is fixedly connected to the inner wall of the protective cover. A gear one is rotatably connected to the surface of the positioning shaft.

[0006] As a further optimization of the present invention, the main clamping assembly includes an assembly frame slidably mounted on a mounting frame. A support is fixedly connected to the side of the assembly frame. A pressure roller for clamping materials is rotatably connected to the inner wall of the support. A fixing block is fixedly connected to the side surface of the slider. A rack adapted to a gear is fixedly connected to the surface of the fixing block. The fixing block can fix the rack to the slider, so that the slider can drive the rack to move. A limit block is fixedly connected to the upper surface of the mounting frame. A spring is fixedly connected between the assembly frame and the limit block. The spring can apply a thrust to the assembly frame under the action of the limit block, so that when the mounting frame moves, the mounting frame, in conjunction with the limit block and the spring, can drive the assembly frame. At the same time, when the assembly frame moves into position, the spring can make way through its own compression deformation to avoid the assembly frame interfering with the subsequent feed movement of the mounting frame. A guide shaft is fixedly connected to the inner wall of the assembly frame, and the spring is fitted on the guide shaft.

[0007] As a further optimization of the present invention, the auxiliary clamping assembly includes a slider two slidably mounted on a guide rail. A bracket two is fixedly connected to the side of the slider two. A pressure roller two for clamping materials is rotatably connected to the inner wall of the bracket two. A connecting frame is fixedly connected to the side surface of the slider two. A T-block is fixedly connected to the surface of the connecting frame. A rack two adapted to a gear one is slidably connected to the surface of the T-block. The T-block and the connecting frame cooperate to guide and constrain the movement of the rack two. A sealing block is installed at one end of the rack two. A C-shaped groove is opened on one side of the rack two. The side of the blocking block is provided with a protruding strip that fits into a C-shaped groove. The protruding strip is inserted into the C-shaped groove. The cooperation between the C-shaped groove and the protruding strip can constrain the position of the blocking block and improve the stability of the blocking block in the blocking state. A fixing rod is rotatably connected to the inner wall of the blocking block. The fixing rod passes through the blocking block. One end of the fixing rod is fixedly connected to the inner wall of the rack two. A spring two is installed between the fixing rod and the T-shaped block. The spring two is sleeved on the fixing rod. The position of the T-shaped block can be restricted by the spring two, so that the rack two drives the connecting frame and the slider two to move through the spring two, the T-shaped block and the blocking block.

[0008] As a further optimization of the present invention, a cover for protecting the blade is fixedly connected to the surface of the mounting bracket, the blade is located inside the cover, the gear one meshes with rack one and rack two, so that rack one can synchronously drive rack two to move when it moves, the limiting block is slidably connected to the inner wall of the assembly bracket, and the limiting block is slidably connected to the surface of the guide shaft.

[0009] As a further optimization of the present invention, a rotating device is provided on the machine body. The rotating device includes an assembly frame slidably mounted on the machine body, a turntable rotatably connected to the assembly frame, a slide rail fixedly connected to the surface of the turntable, and an assembly block slidably connected to the surface of the slide rail. The slide rail can guide the movement direction of the assembly block. A circular hole is formed on the surface of the assembly block, and a connecting rod is fixedly connected to the inner wall of the circular hole. The connecting rod is slidably connected to the inner wall of the turntable. A clamping frame for clamping materials is fixedly connected to one end of the assembly block. The specifications of the clamping frame can be adjusted according to actual usage requirements. A clamping frame for clamping materials is rotatably connected to the surface of the turntable. The push plate has a connecting rod that slides on its inner wall. During rotation, the push plate can move the connecting rod in conjunction with the turntable, thereby controlling the movement of the assembly block through the connecting rod. A second motor is fixedly connected to the surface of the assembly frame. A second gear adapted to the turntable is fixedly connected to the output end of the second motor. A cylinder is fixedly connected to the surface of the turntable. A third motor is fixedly connected to the surface of the cylinder. A third gear is fixedly connected to the output end of the third motor. A gear ring adapted to the third gear is fixedly connected to the surface of the push plate. A housing is fixedly connected to the surface of the assembly frame. The cooperation between the housing and the assembly frame can protect the turntable, the push plate, the second gear, and the third gear.

[0010] As a further optimization of the present invention, the number of assembly blocks is multiple, and the multiple assembly blocks are arranged in a circumferential array with the turntable as a reference. The clamping frame is U-shaped, and a rubber pad is fixedly connected to the inner wall of the clamping frame. The rubber pad can increase the friction between the clamping frame and the contact surface of the pipe, thereby improving the stability of the clamping frame in holding the material. The push plate is rotatably connected to the inner wall of the outer shell. The arc surface of the turntable is provided with gear teeth. The second gear meshes with the turntable. Under the action of the second motor, the second gear can drive the turntable to rotate. The cylinder is rotatably connected to the inner wall of the outer shell. The surface of the cylinder is provided with a through hole. The output end of the third motor passes through the through hole and penetrates the cylinder. The third gear meshes with a gear ring. Under the action of the third motor, the third gear can cooperate with the gear ring to drive the push plate to rotate.

[0011] As a further optimization of the present invention, a feeding device is provided on the machine body. The feeding device includes an L-shaped frame fixed inside the machine body. A lead screw is rotatably connected to the inner wall of the L-shaped frame. A sleeve is fixedly connected to the surface of the assembly frame. The sleeve is threadedly connected to the surface of the lead screw. A motor is fixedly connected to the surface of the L-shaped frame. The output end of the motor is fixedly connected to the lead screw. The motor can drive the lead screw to rotate, so that the lead screw, in conjunction with the sleeve, drives the assembly frame to move.

[0012] As a further optimization of the present invention, an optical axis is fixedly connected to the L-shaped frame, and another sleeve is slidably connected to the surface of the optical axis. The optical axis passes through the assembly frame and the outer shell. The cooperation between the optical axis and the sleeve can guide the movement direction of the assembly frame and the outer shell, thereby ensuring the stability of the assembly frame and the outer shell in the moving state.

[0013] As a further optimization of the present invention, a support frame is fixedly connected to the machine body. The support frame is rotatably connected to the surface of the lead screw and fixedly connected to the surface of the optical axis. The lead screw passes through the assembly frame and the outer shell. Two accordion covers arranged in a mirror image are fixedly connected between the machine body and the assembly frame. The lead screw and the optical axis are respectively located inside the two accordion covers. The accordion covers can protect the lead screw and avoid the problem that the lead screw is exposed to the outside and is easily damaged by cutting debris.

[0014] The beneficial effects of this invention are as follows: 1. By integrating the cutting and clamping structures into a single design, the clamping and cutting actions can be performed simultaneously during equipment operation. This collaborative integration of two independent processes further improves the equipment's processing efficiency. Furthermore, the main and auxiliary clamping components are designed to be movable, allowing for displacement compensation of the subsequent feed motion of the cutting structure after the workpiece is in place. This ensures the cutting structure can smoothly complete its full-stroke feed operation, minimizing the need for the equipment to perform step-by-step sequential actions, such as first driving the clamping structure and then starting the cutting structure to perform the feed operation. The inability to perform the two core actions of clamping and cutting in parallel significantly lengthens the processing cycle of a single pipe, directly impacting the overall processing efficiency of the equipment.

[0015] 2. Because the rotating device, which integrates both pipe clamping and positioning and circumferential rotation drive functions, is integrated into the machine body, pipes in non-cutting areas can also be clamped and fixed, thus supporting the rear end of the pipe. At the same time, the device can drive the pipe to rotate at a uniform speed in the clamping and locking state, so that the pipe and the blade form a relative rotational cutting during the blade cutting operation. This greatly reduces the unidirectional cutting force on the blade, reduces the risk of blade chipping and wear, and significantly improves the cutting efficiency and cut smoothness of the pipe. While ensuring the stability of the cutting operation, it also takes into account the processing efficiency and finished product quality of the equipment.

[0016] 3. Because the machine body is designed with a feeding device for feeding, it can form a precise timing coordination with the rotating device, and smoothly and accurately transport the subsequent pipes to be processed to the cutting station. This ensures that each pipe section can be accurately placed and seamlessly connected, thus guaranteeing the continuous operation of the entire pipe cutting process from the source. It also significantly reduces the non-processing feeding auxiliary time and significantly improves the automation level and mass production efficiency of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure in the cutting state of the present invention; Figure 3 This is a schematic diagram of the connection structure between the guide rail and the second slider of the present invention; Figure 4 This is a schematic diagram of the connection structure between the cylinder and the connecting frame of the present invention; Figure 5 This is a schematic diagram of the main clamping component of the present invention; Figure 6 This is a schematic diagram of the structure of the secondary clamping component of the present invention; Figure 7 This is a schematic diagram of the connection structure between the sealing block and the fixing rod of the present invention; Figure 8 This is a schematic diagram of the connection structure of rack one, rack two, and gear one of the present invention; Figure 9 This is a bottom view of the rotating device of the present invention; Figure 10 This is a schematic diagram of the installation structure of the turntable and slide rail of the present invention; Figure 11 This is an exploded structural diagram of the turntable and pusher of the present invention; Figure 12 This is a schematic diagram of the connection structure between the fuselage and the bellows cover of the present invention; Figure 13 This is a schematic diagram of the feeding device of the present invention.

[0018] In the diagram: 1. Machine body; 2. Controller; 3. Support leg; 4. Cutting device; 41. Guide rail; 42. Slider 1; 43. Mounting bracket; 44. Motor 1; 45. Blade; 46. Cylinder; 47. Connecting bracket; 48. Main clamping assembly; 481. Assembly frame; 482. Bracket 1; 483. Pressure roller 1; 484. Fixing block; 485. Rack 1; 486. Limiting block; 487. Spring 1; 488. Guide shaft; 49. Secondary clamping assembly; 491. Slider 2; 492. Bracket 2; 493. Pressure roller 2; 494. Connecting bracket; 495. T-block; 496. Rack 2; 497. Sealing block; 498. 499. Fixed rod; 410. Spring II; 411. Shield; 412. Protective cover; 413. Positioning shaft; 414. Gear I; 5. Rotating device; 51. Assembly frame; 52. Turntable; 53. Slide rail; 54. Assembly block; 55. Connecting rod; 56. Clamping frame; 57. Rubber pad; 58. Push plate; 59. Motor II; 510. Gear II; 511. Cylinder; 512. Motor III; 513. Gear III; 514. Gear ring; 515. Housing; 6. Feeding device; 61. L-shaped frame; 62. Lead screw; 63. Sleeve; 64. Support frame; 65. Motor IV; 66. Optical shaft; 67. Bellows cover; 7. Pipe. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example: Please refer to Figures 1-13 A metal pipe cutting machine includes a machine body 1, a controller 2 mounted on one side of the machine body 1, the controller 2 employing a core control unit including but not limited to a PCB control motherboard, a support leg 3 fixedly connected to the bottom of the machine body 1, and a cutting device 4 for cutting materials provided on the upper surface of the machine body 1. The cutting device 4 includes a guide rail 41 fixed to the upper surface of the machine body 1 for guidance, a slider 42 slidably connected to the guide rail 41, a mounting bracket 43 fixedly connected to the upper surface of the slider 42, a motor 44 fixedly connected to the side of the mounting bracket 43, and a blade 45 mounted on the output end of the motor 44. The motor 44 drives the blade 45 to rotate, so that the blade 45 can cut the contacting pipe 7. A cylinder 4 is fixedly connected to the upper surface of the machine body 1. 6. A connecting frame 47 is fixedly connected between the cylinder 46 and the mounting frame 43. The cooperation between the cylinder 46 and the connecting frame 47 allows the mounting frame 43 to move along a specified direction, thereby driving the mounting frame 43, the motor 44, and the blade 45 to move. The mounting frame 43 is provided with a main clamping assembly 48 for clamping materials. The guide rail 41 is provided with a secondary clamping assembly 49 that assists the main clamping assembly 48. A protective cover 411 is fixedly connected to the upper surface of the machine body 1. A positioning shaft 412 is fixedly connected to the inner wall of the protective cover 411. A gear 413 is rotatably connected to the surface of the positioning shaft 412. The main clamping assembly 48 and the secondary clamping assembly 49 are meshed with the gear 413. The pipe to be processed 7 is placed between the main clamping assembly 48 and the secondary clamping assembly 49.

[0021] Please see Figure 3 , Figure 4 and Figure 5The main clamping assembly 48 includes an assembly frame 481 slidably mounted on a mounting frame 43. A bracket 482 is fixedly connected to the side of the assembly frame 481. A pressure roller 483 for clamping materials is rotatably connected to the inner wall of the bracket 482. A fixing block 484 is fixedly connected to the side surface of the slider 42. A rack 485, which is adapted to a gear 413, is fixedly connected to the surface of the fixing block 484. The fixing block 484 can fix the rack 485 onto the slider 42, allowing the slider 42 to move the rack 485. A limit block 486 is fixedly connected to the upper surface of the mounting frame 43. A spring 487 is fixedly connected between the frame 481 and the limiting block 486. Under the action of the limiting block 486, the spring 487 can apply a pushing force to the assembly frame 481, so that when the mounting frame 43 moves, the mounting frame 43, together with the limiting block 486 and the spring 487, can drive the assembly frame 481. At the same time, when the assembly frame 481 moves into place, the spring 487 makes way through its own compression deformation, so as to avoid the assembly frame 481 interfering with the subsequent feed movement of the mounting frame 43. A guide shaft 488 is fixedly connected to the inner wall of the assembly frame 481, and the spring 487 is sleeved on the guide shaft 488.

[0022] Please see Figure 3 , Figure 4 and Figure 6 The secondary clamping assembly 49 includes a second slider 491 slidably mounted on a guide rail 41. A second bracket 492 is fixedly connected to the side of the second slider 491. A pressure roller 493 for clamping materials is rotatably connected to the inner wall of the second bracket 492. A connecting frame 494 is fixedly connected to the side surface of the second slider 491. A T-block 495 is fixedly connected to the surface of the connecting frame 494. A rack 496 adapted to a gear 413 is slidably connected to the surface of the T-block 495. The T-block 495 cooperates with the connecting frame 494 to guide and constrain the movement of the rack 496. A sealing block 497 is installed at one end of the rack 496. A C-groove is opened on one side of the rack 496. The side of the sealing block 497 is provided with a C-groove adapted to a gear 413. The C-groove has a protruding rib inserted into it. The cooperation between the C-groove and the protruding rib can constrain the position of the sealing block 497, improving the stability of the sealing block 497 in the sealing state. A fixing rod 498 is rotatably connected to the inner wall of the sealing block 497. The fixing rod 498 passes through the sealing block 497, and one end of the fixing rod 498 is fixedly connected to the inner wall of the rack 496. A spring 499 is installed between the fixing rod 498 and the T-block 495. The spring 499 is sleeved on the fixing rod 498. The position of the T-block 495 can be restricted by the spring 499, so that the rack 496 can drive the connecting frame 494 and the slider 491 to move through the spring 499, the T-block 495 and the sealing block 497.

[0023] Please see Figure 3 , Figure 4 , Figure 7and Figure 8 The mounting bracket 43 has a cover 410 fixedly connected to its surface to protect the blade 45. The blade 45 is located inside the cover 410. Gear 1 413 meshes with rack 1 485 and rack 2 496, so that rack 1 485 can drive rack 2 496 to move synchronously when it moves. Limiting block 486 is slidably connected to the inner wall of the assembly bracket 481 and slidably connected to the surface of guide shaft 488.

[0024] Please see Figure 1 , Figure 2 , Figure 9 and Figure 10 The machine body 1 is equipped with a rotating device 5 for clamping the rear end of the pipe 7. The rotating device 5 includes an assembly frame 51 slidably mounted on the machine body 1. A turntable 52 is rotatably connected to the assembly frame 51. A slide rail 53 is fixedly connected to the surface of the turntable 52. An assembly block 54 is slidably connected to the surface of the slide rail 53. The slide rail 53 can guide the movement direction of the assembly block 54. A circular hole is opened on the surface of the assembly block 54. A connecting rod 55 is fixedly connected to the inner wall of the circular hole. The connecting rod 55 is slidably connected to the inner wall of the turntable 52. A clamping frame 56 for clamping materials is fixedly connected to one end of the assembly block 54. The specifications of the clamping frame 56 can be adjusted according to actual usage requirements. A push plate 58 is rotatably connected to the surface of the turntable 52. The connecting rod 55 slides against the inner wall of the push plate 58. The push plate 58 can move the connecting rod 55 in conjunction with the turntable 52 during rotation, thereby controlling the movement of the assembly block 54 through the connecting rod 55. A second motor 59 is fixedly connected to the surface of the assembly frame 51. A second gear 510 adapted to the turntable 52 is fixedly connected to the output end of the second motor 59. A cylinder 511 is fixedly connected to the surface of the turntable 52. A third motor 512 is fixedly connected to the surface of the cylinder 511. A third gear 513 is fixedly connected to the output end of the third motor 512. A gear ring 514 adapted to the third gear 513 is fixedly connected to the surface of the push plate 58. A housing 515 is fixedly connected to the surface of the assembly frame 51. The cooperation between the housing 515 and the assembly frame 51 can protect the turntable 52, the push plate 58, the second gear 510, and the third gear 513.

[0025] Please see Figure 9 , Figure 10 and Figure 11There are multiple assembly blocks 54, which are arranged in a circular array with reference to the turntable 52. The clamping frame 56 is U-shaped, and a rubber pad 57 is fixedly connected to the inner wall of the clamping frame 56. The rubber pad 57 can increase the friction between the clamping frame 56 and the pipe 7, thereby improving the stability of the clamping frame 56 in clamping the material. The push plate 58 is rotatably connected to the inner wall of the outer shell 515. The arc surface of the turntable 52 is provided with gear teeth. Gear 2 510 meshes with the turntable 52. Under the action of motor 2 59, gear 2 510 can drive the turntable 52 to rotate. The cylinder 511 is rotatably connected to the inner wall of the outer shell 515. The surface of the cylinder 511 is provided with a through hole. The output end of motor 3 512 passes through the cylinder 511 through the through hole. Gear 3 513 meshes with the gear ring 514. Under the action of motor 3 512, gear 3 513 can cooperate with gear ring 514 to drive the push plate 58 to rotate.

[0026] Please see Figure 1 , Figure 2 , Figure 12 and Figure 13 The machine body 1 is equipped with a feeding device 6 for moving the rotating device 5. The feeding device 6 includes an L-shaped frame 61 fixed inside the machine body 1. A lead screw 62 is rotatably connected to the inner wall of the L-shaped frame 61. A sleeve 63 is fixedly connected to the surface of the assembly frame 51. The sleeve 63 is threadedly connected to the lead screw 62. A motor 65 is fixedly connected to the surface of the L-shaped frame 61. The output end of the motor 65 is fixedly connected to the lead screw 62. The motor 65 can drive the lead screw 62 to rotate, so that the lead screw 62, in conjunction with the sleeve 63, drives the assembly frame 51 to move.

[0027] Please see Figure 12 and Figure 13 An optical axis 66 is fixedly connected to the L-shaped frame 61, and another sleeve 63 is slidably connected to the surface of the optical axis 66. The optical axis 66 passes through the assembly frame 51 and the outer shell 515. The cooperation between the optical axis 66 and the sleeve 63 can guide the movement direction of the assembly frame 51 and the outer shell 515, thereby ensuring the stability of the assembly frame 51 and the outer shell 515 in the moving state.

[0028] Please see Figure 12 and Figure 13 A support frame 64 is fixedly connected to the machine body 1. The support frame 64 is rotatably connected to the surface of the lead screw 62. The support frame 64 is fixedly connected to the surface of the optical axis 66. The lead screw 62 passes through the assembly frame 51 and the outer shell 515. Two bellows covers 67 arranged in a mirror image are fixedly connected between the machine body 1 and the assembly frame 51. The lead screw 62 and the optical axis 66 are located inside the bellows covers 67 on both sides. The bellows covers 67 can protect the lead screw 62 and prevent it from being exposed to the outside and easily damaged by cutting debris.

[0029] It should be noted that, in use, the metal pipe cutting machine sequentially passes the pipe to be processed 7 through the rear clamping area formed by the assembly frame 51, turntable 52, assembly block 54 and clamping frame 56 in the rear rotating device 5, and sends it into the clamping station formed by the front main clamping assembly 48 and auxiliary clamping assembly 49; the controller 2 controls the start of motor 2 59 and motor 3 512, wherein motor 3 512 preferentially drives gear 3 513 to rotate, and gear 3 513 meshes and drives push plate 58 to rotate; during the rotation of push plate 58, the driving connecting rod 55 is displaced along the guide structure of turntable 52, and then the connecting rod 55 pushes each assembly block 54 along the slide rail. 53 synchronously retracts towards the center of turntable 52, and assembly block 54 drives clamping frame 56 to move synchronously, so that clamping frame 56 and the rubber pad 57 on its inner wall press against the outer wall of pipe 7, completing the centering clamping of the rear end of pipe 7; after clamping in place, motor three 512 stops working, and the clamping position of assembly block 54 and clamping frame 56 is locked by gear three 513, push plate 58 and connecting rod 55, so that clamping frame 56 maintains a stable clamping state; then controller 2 controls motor two 59 to drive gear two 510 to rotate, and gear two 510 meshes to drive turntable 52 to rotate, and then through assembly block 54 and clamping frame 56, the clamped pipe 7 is driven to rotate synchronously around the axis; After the pipe 7 enters a stable rotation state, the controller 2 controls the cylinder 46 to start. The cylinder 46 pulls the mounting frame 43 along the guide rail 41 through the connecting frame 47. The mounting frame 43 synchronously drives the slider 42, motor 44, blade 45 and main clamping assembly 48 to move as a whole. At the same time, the slider 42 drives the rack 485 to move synchronously through the fixing block 484. The rack 485 meshes with the gear 413 inside the protective cover 411 to rotate. The gear 413 meshes synchronously with the rack 496 to move in the opposite direction. The rack 496 pushes the T-block 495 through the sealing block 497 and spring 499, and then drives the slider 491 to move along the guide rail 41 through the connecting frame 494. The slider 491 synchronously drives the bracket 492 and pressure roller 493 to move, realizing the opposite synchronous closing movement of the auxiliary clamping assembly 49 and the main clamping assembly 48. When both the pressure roller 483 of the main clamping assembly 48 and the pressure roller 493 of the auxiliary clamping assembly 49 abut against the outer wall of the pipe 7, the pressure roller 483 and the pressure roller 493 cooperate to clamp and position the front end of the pipe 7. At this time, the cylinder 46 continues to drive the mounting frame 43 to feed through the connecting frame 47, driving the motor 44 and the blade 45 to continuously advance towards the pipe 7. During this process, the pressure roller 483 and the support 482 are constrained by the position of the pipe 7 and cannot continue to move, thus pushing the assembly frame 481 to slide relative to the mounting frame 43 and squeezing the spring 487 to make way. At the same time, the pressure roller 493 and the support 493... 2. The continued displacement of slider 491 is restricted by the pipe 7. When rack 496 continues to move with the drive of gear 413, the displacement of slider 491, connecting frame 494 and T-block 495 is restricted. Rack 496 is pushed by sealing block 497 to make way for spring 499, ensuring that the meshing transmission of rack 485 and rack 496 is not interfered with. Mounting frame 43 can drive blade 45 to feed continuously. During the feeding process, motor 44 continuously drives blade 45 to rotate at high speed. The rotating blade 45 gradually contacts and cuts into the rotating pipe 7 until the whole circumference of pipe 7 is cut off. After the pipe 7 is cut, the controller 2 controls the cylinder 46 to reverse, driving the cutting device 4 to reset as a whole. At the same time, the main clamping assembly 48 and the auxiliary clamping assembly 49 release the pipe 7 simultaneously. Then, the controller 2 controls the motor 65 of the feeding device 6 to start. The motor 65 drives the lead screw 62 to rotate, and then through the thread transmission between the lead screw 62 and the sleeve 63, it drives the assembly frame 51 to feed along the machine body 1 towards the cutting station, and sends the pipe 7 to be processed held on the assembly frame 51 forward into the preset cutting station. When the pipe 7 is fed to the set length, the motor 65 stops working, completing the fixed-length feed of the pipe 7. Then, the controller 2 controls the cutting device 4 to repeat the above clamping and cutting actions to realize the continuous automated processing of the pipe 7. Because the cutting structure and clamping structure are integrated into a single design, the clamping and cutting actions can be performed simultaneously during equipment operation. This integration of two independent processes further improves the equipment's processing efficiency. Simultaneously, the main clamping assembly 48 and the auxiliary clamping assembly 49 are designed to be movable, enabling displacement compensation for the subsequent feed motion of the cutting structure after the workpiece is clamped in place. This ensures the cutting structure can smoothly complete its full-stroke feed operation, minimizing the need for the equipment to perform step-by-step sequential actions, such as first driving the clamping structure and then starting the cutting structure to perform the feed operation. The inability to perform the two core actions of clamping and cutting in parallel significantly lengthens the processing cycle of a single pipe 7, directly impacting the overall processing efficiency of the equipment.

[0030] Among them, controller 2, cylinder 46, motor 1 44, motor 2 59, motor 3 512, and motor 4 65 are all existing technologies, and their control and working principles will not be elaborated here; for the connection parts between the parts, welding, bolt fixing, interference fit, and other connection methods can be selected according to actual needs.

[0031] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A metal pipe cutting machine, comprising a machine body (1), characterized in that: A controller (2) is installed on one side of the machine body (1), and a support leg (3) is fixedly connected to the bottom of the machine body (1). A cutting device (4) is provided on the upper surface of the machine body (1). The cutting device (4) includes a guide rail (41) fixed to the upper surface of the machine body (1). A slider (42) is slidably connected to the guide rail (41). A mounting bracket (43) is fixedly connected to the upper surface of the slider (42). A motor (44) is fixedly connected to the side of the mounting bracket (43). A blade (45) is installed on the output end of the motor (44). (1) A cylinder (46) is fixedly connected to the upper surface. A connecting frame (47) is fixedly connected between the cylinder (46) and the mounting frame (43). A main clamping assembly (48) for clamping materials is provided on the mounting frame (43). A secondary clamping assembly (49) for the auxiliary main clamping assembly (48) is provided on the guide rail (41). A protective cover (411) is fixedly connected to the upper surface of the machine body (1). A positioning shaft (412) is fixedly connected to the inner wall of the protective cover (411). A gear (413) is rotatably connected to the surface of the positioning shaft (412).

2. A metal tube cutting machine according to claim 1, characterized in that: The main clamping assembly (48) includes an assembly frame (481) slidably mounted on a mounting frame (43). A bracket (482) is fixedly connected to the side of the assembly frame (481). A pressure roller (483) is rotatably connected to the inner wall of the bracket (482). A fixing block (484) is fixedly connected to the side surface of the slider (42). A rack (485) of a gear (413) is fixedly connected to the surface of the fixing block (484). A limit block (486) is fixedly connected to the upper surface of the mounting frame (43). A spring (487) is fixedly connected between the assembly frame (481) and the limit block (486). A guide shaft (488) is fixedly connected to the inner wall of the assembly frame (481). The spring (487) is sleeved on the guide shaft (488).

3. A metal tube cutting machine according to claim 2, characterized in that: The secondary clamping assembly (49) includes a second slider (491) slidably mounted on a guide rail (41). A second bracket (492) is fixedly connected to the side of the second slider (491). A second pressure roller (493) is rotatably connected to the inner wall of the second bracket (492). A connecting frame (494) is fixedly connected to the side surface of the second slider (491). A T-block (495) is fixedly connected to the surface of the connecting frame (494). A rack (496) that adapts to a first gear (413) is slidably connected to the surface of the T-block (495). One end of the rack (496) is equipped with a... The sealing block (497) has a C-shaped groove on one side of the rack (496) and a protrusion that fits the C-shaped groove on the side. The protrusion is inserted into the C-shaped groove. A fixing rod (498) is rotatably connected to the inner wall of the sealing block (497). The fixing rod (498) passes through the sealing block (497). One end of the fixing rod (498) is fixedly connected to the inner wall of the rack (496). A spring (499) is installed between the fixing rod (498) and the T-shaped block (495). The spring (499) is sleeved on the fixing rod (498).

4. A metal tube cutting machine according to claim 3, characterized in that: The mounting bracket (43) has a cover (410) fixedly connected to its surface for protecting the blade (45). The blade (45) is located inside the cover (410). The gear one (413) meshes with the rack one (485) and the rack two (496). The limiting block (486) is slidably connected to the inner wall of the assembly bracket (481). The limiting block (486) is slidably connected to the surface of the guide shaft (488).

5. A metal tube cutting machine according to claim 1, characterized in that: A rotating device (5) is provided on the body (1). The rotating device (5) includes an assembly frame (51) slidably mounted on the body (1). A turntable (52) is rotatably connected to the assembly frame (51). A slide rail (53) is fixedly connected to the surface of the turntable (52). An assembly block (54) is slidably connected to the surface of the slide rail (53). A circular hole is opened on the surface of the assembly block (54). A connecting rod (55) is fixedly connected to the inner wall of the circular hole. The connecting rod (55) is slidably connected to the inner wall of the turntable (52). A clamping frame (56) is fixedly connected to one end of the assembly block (54). A push plate (58) is rotatably connected to the surface of the turntable (52). The connecting rod (55) is slidably connected to the inner wall of the push plate (58). The surface of the assembly frame (51) is fixedly connected to the second motor (59). The output end of the second motor (59) is fixedly connected to the gear second (510) adapted to the turntable (52). The surface of the turntable (52) is fixedly connected to the cylinder (511). The surface of the cylinder (511) is fixedly connected to the third motor (512). The output end of the third motor (512) is fixedly connected to the gear third (513). The surface of the push plate (58) is fixedly connected to the gear ring (514) adapted to the gear third (513). The surface of the assembly frame (51) is fixedly connected to the outer shell (515).

6. A metal tube cutting machine according to claim 5, characterized in that: The number of assembly blocks (54) is multiple, and the multiple assembly blocks (54) are arranged in a circular array with reference to the turntable (52). The clamping frame (56) is U-shaped, and the inner wall of the clamping frame (56) is fixedly connected with a rubber pad (57). The push plate (58) is rotatably connected to the inner wall of the outer shell (515). The arc surface of the turntable (52) is provided with gear teeth. The gear two (510) meshes with the turntable (52). The cylinder (511) is rotatably connected to the inner wall of the outer shell (515). The surface of the cylinder (511) is provided with a through hole. The output end of the motor three (512) passes through the cylinder (511) through the through hole. The gear three (513) meshes with the gear ring (514).

7. A metal tube cutting machine according to claim 5, characterized in that: The machine body (1) is provided with a feeding device (6), which includes an L-shaped frame (61) fixed inside the machine body (1). A lead screw (62) is rotatably connected to the inner wall of the L-shaped frame (61). A sleeve (63) is fixedly connected to the surface of the assembly frame (51). The sleeve (63) is threadedly connected to the surface of the lead screw (62). A motor (65) is fixedly connected to the surface of the L-shaped frame (61). The output end of the motor (65) is fixedly connected to the lead screw (62).

8. A metal tube cutting machine according to claim 7, characterized in that: An optical axis (66) is fixedly connected to the L-shaped frame (61), and another sleeve (63) is slidably connected to the surface of the optical axis (66). The optical axis (66) passes through the assembly frame (51) and the outer shell (515).

9. A metal tube cutting machine according to claim 8, characterized in that: A support frame (64) is fixedly connected to the body (1). The support frame (64) is rotatably connected to the surface of the lead screw (62). The support frame (64) is fixedly connected to the surface of the optical axis (66). The lead screw (62) passes through the assembly frame (51) and the outer shell (515). Two accordion covers (67) arranged in a mirror image are fixedly connected between the body (1) and the assembly frame (51). The lead screw (62) and the optical axis (66) are located in the two accordion covers (67) on both sides respectively.

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