High-precision fixed-length laser cutting equipment for metal pipes

Abstract

The invention relates to high-precision fixed-length laser cutting equipment for metal pipes, and belongs to the technical field of laser cutting, the high-precision fixed-length laser cutting equipment comprises a cutting table and a laser head, a fixing assembly used for fixing the laser head is arranged on the cutting table, and two supporting plates are slidably connected to the cutting table; a driving assembly capable of driving the two supporting plates to move is arranged on the cutting table, the opposite sides of the two supporting plates are rotationally connected with a branch pipe, a rotating disc is fixedly arranged on the branch pipe, a rotating assembly used for driving the rotating disc to rotate is arranged at the supporting plates, and a plurality of first arc-shaped plates are evenly distributed on the peripheral side of the branch pipe. The first arc-shaped plate is located on the side, away from the supporting plate, of the rotary disc, the end, close to the rotary disc, of the first arc-shaped plate is slidably connected with the rotary disc, and a first moving assembly capable of driving the first arc-shaped plate to move in the direction away from the branch pipe is arranged at the branch pipe. The device has the effect of improving the working efficiency of cutting the metal pipe.

Description

Technical Field

[0001] The present application relates to the technical field of laser cutting, and in particular to a high-precision fixed-length laser cutting device for metal pipes. Background Art

[0002] In today's wave of industrial manufacturing, laser technology has gradually become a part of it with its advantages, and laser tube cutting machine, as a field of laser processing, shines in the metal tube processing industry with its high precision and high efficiency.

[0003] The existing metal pipe laser cutting equipment includes a cutting table and a laser head. The cutting table is provided with a supporting assembly for supporting and fixing the laser head. The cutting table is provided with a clamping assembly for clamping the metal pipe and a rotating assembly for driving the clamping assembly to rotate. When the metal pipe laser cutting equipment is in operation, the metal pipe is first placed on the cutting table. The staff manually operates the clamping assembly to clamp and fix the end of the metal pipe. After clamping and fixing, the rotating assembly drives the clamping assembly to rotate, and the clamping assembly drives the metal pipe to rotate. At the same time, the laser head is started, and the laser head cuts the metal pipe. After the cutting is completed, the staff manually operates the clamping assembly to release the clamping and fixation of the metal pipe, and removes the metal pipe.

[0004] With regard to the above-mentioned related technologies, during the operation process, the staff needs to manually operate the clamping assembly to clamp and release the metal pipe, which is time-consuming and labor-intensive, and thus has the defect of low efficiency in cutting the metal pipe. Summary of the invention

[0005] In order to improve the working efficiency of cutting metal pipes, the present application provides a high-precision fixed-length laser cutting device for metal pipes.

[0006] The present application provides a high-precision fixed-length laser cutting device for metal pipes, which adopts the following technical solutions: A high-precision fixed-length laser cutting device for metal pipes comprises a cutting table and a laser head, wherein a fixing assembly for fixing the laser head is arranged on the cutting table, two supporting plates are slidably connected to the upper surface of the cutting table, the two supporting plates are parallel to each other, the fixing assembly is fixedly connected to one of the two supporting plates, a driving assembly capable of driving the two supporting plates to move toward or away from each other is arranged on the cutting table, branch pipes are rotatably connected to the opposite sides of the two supporting plates, a turntable is arranged on the branch pipe, the branch pipe passes through the turntable, the branch pipe and the turntable are fixedly connected, a rotating assembly for driving the turntable to rotate is arranged at the supporting plate, a plurality of first arc plates are evenly distributed around the branch pipe, the first arc plate is on the side of the turntable away from the support plate, one end of the first arc plate close to the turntable is slidably connected to the turntable, a first moving assembly capable of driving the first arc plate to move in a direction away from the branch pipe is arranged at the branch pipe, and a lifting assembly capable of lifting the metal pipe is arranged on the upper surface of the cutting table.

[0007] By adopting the above technical solution, after the pipe is placed on the cutting table, the lifting component will lift it to a preset height. Subsequently, the driving component is activated to push the two support plates closer to each other, and this action drives the synchronous movement of the fixed component and the branch pipe. The fixed component further guides the movement of the laser head, and the branch pipe drives the turntable to move. As the end of the branch pipe gradually penetrates into the metal pipe, the first moving component is activated to drive the first curved plate to move away from the branch pipe until multiple first curved plates are tightly fitted to the inner wall of the metal pipe to achieve a stable fixation. At this time, the rotating component starts to work, driving the first curved plate and the entire metal pipe to rotate through the branch pipe and the turntable. At the same time, the laser head is started to accurately cut the rotating metal pipe. This process does not require manual intervention to clamp or release the clamp, which saves time and improves the work efficiency of metal pipe cutting.

[0008] Optionally, the fixing assembly includes a first fixing plate and a second fixing plate, the first fixing plate is slidably connected to the upper surface of the cutting table, one end of the first fixing plate is fixedly connected to a side wall of a support plate, a first sliding groove is provided on one side of the first fixing plate along the length direction of the cutting table, the first fixing plate is slidably connected to a first slider in the first sliding groove, one side of the second fixing plate is fixedly connected to a side of the first slider facing outside the first sliding groove, the laser head is fixedly mounted on the second fixing plate, and a second movable assembly for driving the first slider to move is provided on the first fixing plate.

[0009] By adopting the above technical solution, during the movement of the support plate, the support plate drives the first fixed plate to move, the first fixed plate drives the second fixed plate to move, and the second fixed plate drives the laser head to move. When the cutting length of the metal pipe needs to be adjusted, the second moving assembly drives the first slider to move, the first slider drives the second support plate to move, and the second support plate drives the laser head to move, so that the laser head moves to the set position. The setting of the first fixed plate and the second fixed plate realizes the fixation of the laser head.

[0010] Optionally, the second moving component includes a first motor and a screw, the first motor is fixedly connected to one side of the first fixed plate, the screw is arranged in the first slide groove along the length direction of the first slide groove, the opposite ends of the screw are rotatably connected to the opposite side walls of the first slide groove respectively, the screw passes through the first slider and is threadedly connected to the first slider, and the output shaft of the first motor passes through one side wall of the first slide groove and is fixedly connected to one end of the screw.

[0011] By adopting the above technical solution, the first motor is started, the first motor drives the screw to rotate, and under the guidance of the first slide groove, the screw drives the first slider to move, so that the second moving component realizes the function of driving the first slider to move.

[0012] Optionally, the cutting table is provided with a second slide groove at the support plate along its own length direction, and the cutting table is slidably connected with a second slider at the second slide groove, the upper surface of the second slider is fixedly connected and one-to-one with the support plate, and the lower end of the second slider passes through the second slide groove, and the driving assembly includes a second motor and a bidirectional screw rod, the second motor is fixedly connected to the lower surface of the cutting table, two auxiliary plates are fixedly provided on the lower surface of the cutting table, the two auxiliary plates are parallel to each other, the bidirectional screw rod is arranged between the two auxiliary plates, the two ends of the bidirectional screw rod are respectively rotatably connected to the two auxiliary plates, the output shaft of the second motor passes through an auxiliary plate and is fixedly connected to one end of the bidirectional screw rod, the bidirectional screw rod passes through the lower ends of the two second sliders, and the second slider and the bidirectional screw rod are threadedly connected.

[0013] By adopting the above technical solution, the second motor is started, and the second motor drives the bidirectional screw to rotate. Under the guidance of the second slide groove, the bidirectional screw drives the second slider to move, and the second slider drives the support plate to move, so that the first moving component realizes the function of driving the support plate to move.

[0014] Optionally, the rotating assembly includes a third motor and a bearing plate, the bearing plate and the support plate are fixedly connected on a side facing away from the turntable, the third motor is fixed on the bearing plate, and the output shaft of the third motor is fixedly connected to the branch pipe.

[0015] By adopting the above technical solution, the third motor is started, the third motor drives the branch pipe to rotate, and the branch pipe drives the turntable to rotate, so that the rotating component realizes the function of driving the branch pipe to rotate.

[0016] Optionally, a plurality of third sliding grooves are provided on the side of the turntable facing the first curved plate, and a third sliding block is slidably connected to the turntable in the third sliding grooves, and the side of the third sliding block facing the first curved plate is fixedly connected to the first curved plate and corresponds one to one.

[0017] By adopting the above technical solution, during the movement of the first curved plate, the first curved plate is fixed on the third slider to carry the movement, and the third slider and the third slide groove are arranged to realize the sliding connection between the first curved plate and the turntable.

[0018] Optionally, a sliding rod is provided at the branch pipe, one end of the sliding rod is in the branch pipe, the sliding rod and the branch rod are slidably connected, the first moving component includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are both provided with a plurality of first connecting rods, and the plurality of first connecting rods are evenly distributed at the end of the sliding rod outside the branch pipe, one end of the first connecting rod is hinged to the sliding rod, an end of the first connecting rod away from the sliding rod is hinged to the first arc plate and corresponds one to one, a plurality of first avoidance grooves are opened through the side wall of the branch pipe, and the plurality of first avoidance grooves are distributed in sequence along the circumferential side wall of the branch pipe, one end of the second connecting rod passes through the first avoidance groove and extends into the interior of the branch pipe and is hinged to the sliding rod, the second connecting rod and the first avoidance groove correspond one to one, an end of the second connecting rod away from the sliding rod is hinged to an end of the first arc plate close to the third sliding block and corresponds one to one, and a third moving component that drives the sliding rod to move is provided at the branch pipe.

[0019] By adopting the above technical solution, as the first curved plate gradually moves toward the inside of the metal pipe, the third moving component drives the sliding rod to move toward the support plate, and the sliding rod drives the first connecting rod and the second connecting rod to move. Under the guidance of the first curved plate, the first connecting rod and the second connecting rod flip over and push the first curved plate to move in the direction away from the branch pipe, so that the first moving component realizes the function of driving the first curved plate to move in the direction away from the branch pipe.

[0020] Optionally, a first annular plate is provided on the side of the turntable facing the first arc plate, the first annular plate is sleeved outside the multiple first arc plates, a moving rod is fixedly provided on the side of the first annular plate facing the turntable, the end of the moving rod away from the turntable passes through the turntable, the moving rod and the turntable are slidably connected, the third moving component includes a second annular plate and a fixed rod, the second annular plate and the end of the moving rod away from the first annular plate are fixedly connected, the second annular plate is sleeved outside the branch pipe, a second avoidance groove is opened on the side wall of the branch pipe, one end of the fixed rod is fixedly connected to the sliding rod, the end of the fixed rod away from the sliding rod passes through the second avoidance groove and is fixedly connected to the second annular plate, a spring is fixedly provided between the second annular plate and the turntable, and the spring is sleeved outside the branch pipe.

[0021] By adopting the above technical scheme, in the process of the first arc plate gradually moving into the inside of the metal pipe, the end of the metal pipe first contacts the first annular plate, and under the obstruction of the metal pipe, the first annular plate moves toward the direction of the turntable, the first annular plate drives the moving rod to move, the moving rod drives the second annular plate to move, the second annular plate drives the fixed rod to move, the fixed rod drives the sliding rod to move, the spring is stretched, and after the first annular plate and the turntable abut, the first arc plate and the inner wall of the metal pipe are tightly abutted. After the cutting is completed, the driving assembly drives the two support plates to move away from each other, the spring contracts, and drives the second annular plate to move toward the turntable, the second annular plate drives the fixed rod to move, the fixed rod drives the sliding rod to move, and the first arc plate moves toward the branch pipe direction, thereby releasing the fixation of the pipe, making it convenient for the staff to remove the metal pipe, so that the third moving assembly realizes the function of driving the sliding rod to move.

[0022] Optionally, the lifting assembly includes an electric cylinder and a second arc plate, the electric cylinder is fixed on the lower surface of the cutting table, the second arc plate is arranged on the upper surface of the cutting table, the second arc plate is located between two support plates, and the output shaft of the electric cylinder passes through the upper surface of the cutting table and is fixedly connected to the second arc plate.

[0023] By adopting the above technical solution, after the metal pipe is placed on the second curved plate, the electric cylinder is started, the electric cylinder drives the second curved plate to move upward, and the second curved plate drives the metal pipe to move upward, so that the lifting assembly realizes the function of driving the metal pipe to move upward.

[0024] Optionally, a placement groove for parking the second curved plate is provided on the upper surface of the cutting table.

[0025] By adopting the above technical solution, before placing the metal pipe, the second curved plate is in the placement groove, and the upper surface of the second curved plate and the upper surface of the cutting table are in the same horizontal plane, which provides convenience for placing the metal pipe on the second curved plate.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The driving assembly moves the two support plates toward each other, the support plates drive the fixing assembly and the branch pipe to move, the branch pipe drives the turntable to move, when the branch pipe extends into the metal pipe, the first moving assembly drives the first curved plate to move, the first curved plate is close to the inner wall of the pipe, and the metal pipe is fixed. At the same time, when the support plates move away from each other, the first moving assembly drives the first curved plate to move toward the branch pipe to release the fixation of the metal pipe. No manual clamping is required throughout the process, thereby improving the working efficiency of metal pipe cutting; 2. The setting of the first motor and the screw provides convenience for adjusting the cutting length of the metal pipe; 3. By linking the movement of the third moving component and the turntable, resources are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a high-precision fixed-length laser cutting device for metal pipes according to an embodiment of the present application; Figure 2 is a structural cross-sectional view showing the second moving component in the embodiment of the present application; Figure 3 This is a cross-sectional view of the structure of the drive assembly in the embodiment of the present application. Figure 4 yes Figure 2 A partial enlarged schematic diagram of part A.

[0028] In the figure, 1, cutting table; 11, laser head; 12, support plate; 13, branch pipe; 131, slide bar; 132, first avoidance groove; 133, second avoidance groove; 14, second slide groove; 15, second slider; 16, auxiliary plate; 17, placement groove; 2, fixing assembly; 21, first fixing plate; 211, first slide groove; 212, first slider; 22, second fixing plate; 3, driving assembly; 31, second motor; 32, bidirectional screw rod; 4, turntable; 41, first An arc-shaped plate; 42, a third slide groove; 43, a third slider; 44, a first annular plate; 46, a moving rod; 47, a spring; 5, a rotating assembly; 51, a third motor; 52, a bearing plate; 6, a first moving assembly; 61, a first connecting rod; 62, a second connecting rod; 7, a lifting assembly; 71, an electric cylinder; 72, a second arc-shaped plate; 8, a second moving assembly; 81, a first motor; 82, a screw; 9, a third moving assembly; 91, a second annular plate; 92, a fixing rod. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0030] The embodiment of the present application discloses a high-precision fixed-length laser cutting device for metal pipes.

[0031] refer to Figure 1 A high-precision fixed-length laser cutting device for metal pipes includes a cutting table 1. The cutting table 1 has two second slide grooves 14 along its length direction. The two second slide grooves 14 are arranged in sequence along the length direction of the cutting table 1. The cutting table 1 is provided with support plates 12 at the second slide grooves 14. The two support plates 12 are parallel to each other, and the support plates 12 are perpendicular to the upper surface of the cutting table 1. A turntable 4 is provided on the opposite side of the two support plates 12, and the turntable 4 is parallel to the support plates 12.

[0032] refer to Figure 1 and Figure 2A laser head 11 is arranged above the cutting table 1, and a fixing component 2 for supporting and fixing the laser head 11 is arranged on the cutting table 1. The fixing component 2 includes a first fixing plate 21 and a second fixing plate 22. The first fixing plate 21 is fixedly connected to one of the side walls of the two supporting plates 12, the first fixing plate 21 is perpendicular to the supporting plate 12, the first fixing plate 21 is perpendicular to the upper surface of the cutting table 1, a first slide groove 211 is opened on one side of the upper end of the first fixing plate 21 along its own length direction, the first fixing plate 21 is slidably connected with a first slider 212 in the first slide groove 211, the second fixing plate 22 is fixedly connected to the side of the first slider 212 facing the outside of the first slide groove 211, the laser head 11 is fixedly arranged on the second fixing plate 22, and a second moving component 8 for driving the first slider 212 to move is arranged at the first fixing plate 21.

[0033] The second moving component 8 includes a first motor 81 and a screw 82. The first motor 81 is fixed on the first fixed plate 21. The screw 82 is arranged in the first slide groove 211 along the length direction of the first slide groove 211. The two ends of the screw 82 are rotatably connected to the opposite side walls of the first slide groove 211 respectively. The output shaft of the first motor 81 passes through a side wall of the first slide groove 211 and is fixedly connected to one end of the screw 82. The screw 82 passes through the first slider 212 and is threadedly connected to the first slider 212.

[0034] Start the first motor 81, and the first motor 81 drives the screw 82 to rotate. Under the guidance of the first slide groove 211, the screw 82 drives the first slider 212 to move in the first slide groove 211, and the first slider 212 drives the second fixed plate 22 to move. The second fixed plate 22 drives the laser head 11 to move, so that the laser head 11 moves to the set position, thereby facilitating the adjustment of the cutting length of the metal pipe.

[0035] refer to Figure 1 , Figure 3 and Figure 4 Two auxiliary plates 16 are fixedly provided on the lower surface of the cutting table 1. The auxiliary plates 16 are parallel to each other, and the auxiliary plates 16 are perpendicular to the lower surface of the cutting table 1. The cutting table 1 is slidably connected with a second slider 15 at the second slide groove 14. The upper surface of the second slider 15 is fixedly connected to the support plate 12 and corresponds one to one. The lower end of the second slider 15 extends out of the second slide groove 14. A driving component 3 is provided at the cutting table 1 to drive the two support plates 12 to move toward or away from each other.

[0036] The driving assembly 3 includes a second motor 31 and a bidirectional screw rod 32. The second motor 31 is fixedly connected to the cutting table 1. The bidirectional screw rod 32 is arranged between the two auxiliary plates 16 along the length direction of the cutting table 1. The two ends of the bidirectional screw rod 32 are respectively rotatably connected to the two auxiliary plates 16. The output shaft of the second motor 31 passes through an auxiliary plate 16 and is fixedly connected to one end of the bidirectional screw rod 32. The bidirectional screw rod 32 passes through the second slider 15 and is threadedly connected to the second slider 15. The two second sliders 15 are respectively located at the two ends of the bidirectional screw rod 32.

[0037] The second motor 31 is started, and the second motor 31 drives the bidirectional screw rod 32 to rotate. Under the guidance of the second slide groove 14, the bidirectional screw rod 32 drives the second slider 15 to move, and the second slider 15 drives the support plate 12 to move, so that the support plates 12 move toward or away from each other.

[0038] refer to Figure 1 , Figure 3 and Figure 4 , the two support plates 12 are rotatably connected to the opposite side with a branch pipe 13, the length direction of the branch pipe 13 is perpendicular to the support plate 12, a turntable 4 is arranged on the branch pipe 13, the branch pipe 13 passes through the turntable 4 and is fixedly connected to the turntable 4, the branch pipe 13 is perpendicular to the turntable 4, and a rotating component 5 that can drive the branch pipe 13 to rotate is arranged on the side of the support plate 12 away from the turntable 4.

[0039] The rotating assembly 5 includes a bearing plate 52 and a third motor 51. The bearing plate 52 is fixedly connected to the side of the support plate 12 away from the turntable 4. The third motor 51 is fixedly arranged on the bearing plate 52. The output shaft of the third motor 51 passes through the support plate 12 and is fixedly connected to one end of the branch pipe 13. When the third motor 51 is started, the third motor 51 drives the branch pipe 13 to rotate, and the branch pipe 13 drives the turntable 4 to rotate.

[0040] refer to Figure 1 , Figure 3 and Figure 4 A placement groove 17 is provided on the upper surface of the cutting table 1. A lifting assembly 7 for lifting the metal pipe upward is provided at the placement groove 17 of the cutting table 1. The lifting assembly 7 includes an electric cylinder 71 and a second arc plate 72. Two electric cylinders 71 are provided. The two electric cylinders 71 are arranged in sequence along the length direction of the cutting table 1. The electric cylinder 71 and the cutting table 1 are fixedly connected. The second arc plate 72 is provided at the placement groove 17. The output shaft of the electric cylinder 71 passes through the inner bottom wall of the placement groove 17 and is fixedly connected to the second arc plate 72.

[0041] When placing the metal pipe, the second curved plate 72 is in the placement groove 17, and the upper surface of the second curved plate 72 and the upper surface of the cutting table 1 are in the same horizontal plane. After the metal pipe is placed in the second curved plate 72, the electric cylinder 71 is started, and the electric cylinder 71 drives the second curved plate 72 to move upward, so that the metal pipe moves to the set position.

[0042] refer to Figure 1 , Figure 3 and Figure 4 Four first curved plates 41 are evenly distributed around the branch pipe 13, the first curved plates 41 are located on the side of the turntable 4 away from the support plate 12, four third sliding grooves 42 are opened on the side of the turntable 4 facing the first curved plates 41, the turntable 4 is slidably connected with a third slider 43 in the third sliding groove 42, the side of the third slider 43 facing the outside of the third sliding groove 42 is fixedly connected to the first curved plate 41 and corresponds one to one, a sliding rod 131 is provided at the branch pipe 13, the length direction of the sliding rod 131 is parallel to the length direction of the branch pipe 13, one end of the sliding rod 131 extends into the branch pipe 13 and is slidably connected to the branch pipe 13, and a first moving component 6 capable of driving the first curved plate 41 to move is provided at the branch pipe 13.

[0043] The first moving assembly 6 includes a first connecting rod 61 and a second connecting rod 62, and four of the first connecting rod 61 and the second connecting rod 62 are provided. The four first connecting rods 61 are evenly distributed on the peripheral side of the sliding rod 131 at one end outside the branch pipe 13. One end of the first connecting rod 61 is hinged to the sliding rod 131, and one end of the first connecting rod 61 away from the sliding rod 131 is hinged to the first arc plate 41 and corresponds one to one. The side wall of the branch pipe 13 is provided with four first avoidance grooves 132 along its own length direction. The first avoidance grooves 132 are arranged in sequence along the circumferential side wall of the branch pipe 13, one end of the second connecting rod 62 extends from the first avoidance groove 132 into the branch pipe 13 and is hinged to the slide rod 131, the second connecting rod 62 and the first avoidance groove 132 correspond one to one, the end of the second connecting rod 62 away from the slide rod 131 and the end of the first arc plate 41 close to the turntable 4 are hinged and correspond one to one, and the side of the turntable 4 away from the first arc plate 41 is provided with a third moving component 9 for driving the slide rod 131 to move.

[0044] The side wall of the branch pipe 13 is provided with a second avoidance groove 133, and the second avoidance groove 133 is located between the turntable 4 and the support plate 12. The third moving assembly 9 includes a second annular plate 91 and a fixed rod 92, one end of the fixed rod 92 is fixedly connected to the slide rod 131, and the length direction of the fixed rod 92 is parallel to the length direction of the slide rod 131. The end of the fixed rod 92 away from the slide rod 131 passes through the branch pipe 13 from the second avoidance groove 133, and the second annular plate 91 is sleeved outside the branch pipe 13, and the fixed rod 92 is away from the slide rod 131. One end of the moving rod 46 is fixedly connected to the second annular plate 91, a spring 47 is fixedly provided between the second annular plate 91 and the turntable 4, the spring 47 is sleeved outside the branch pipe 13, a moving rod 46 is fixedly provided on the side of the second annular plate 91 facing the turntable 4, the moving rod 46 is parallel to the branch pipe 13, an end of the moving rod 46 away from the second annular plate 91 passes through the turntable 4 and is slidably connected to the turntable 4, an end of the moving rod 46 away from the second annular plate 91 is fixedly provided with a first annular plate 44, and the first annular plate 44 is sleeved outside the plurality of first arc plates 41.

[0045] In the process of the support plates 12 moving toward each other, the support plate 12 drives the branch pipe 13 to move, the branch pipe 13 drives the rotating disk 4 to move, the rotating disk 4 drives the first arc plate 41 to move, and at the same time, the branch pipe 13 drives the sliding rod 131 to move, and the sliding rod 131 drives the first connecting rod 61 and the second connecting rod 62 to move. As the end of the sliding rod 131 outside the branch pipe 13 gradually moves into the metal pipe, the end of the metal pipe contacts the first annular plate 44 and hinders the movement of the first annular plate 44, so that the moving rod 46 moves toward the support plate 12 relative to the rotating disk 4, the moving rod 46 drives the second annular plate 91 to move, the second annular plate 91 drives the fixed rod 92 to move, the fixed rod 92 drives the sliding rod 131 to move, the sliding rod 131 drives the first connecting rod 61 and the second connecting rod 62 to move, and in the process of the first connecting rod 61 and the second moving rod 46 moving, under the guidance of the third sliding groove 42, the first connecting rod 61 and the second connecting rod 62 drive The first curved plate 41 moves in the direction away from the branch pipe 13, and the spring 47 is stretched. After the first annular plate 44 abuts against the turntable 4, the first curved plate 41 and the inner wall of the metal pipe are tightly abutted to fix the metal pipe. During the rotation of the turntable 4, the turntable 4 drives the first curved plate 41 to rotate, and the first curved plate 41 drives the metal pipe to rotate. At the same time, the laser head 11 cuts the metal pipe. After the cutting is completed, the two support plates 12 move away from each other, and the spring 47 gradually contracts and drives the second annular plate 91 to move toward the turntable 4. The second annular plate 91 drives the fixing rod 92 to move, and the fixing rod 92 drives the sliding rod 131 to move, and the sliding rod 131 drives the first connecting rod 61 and the second connecting rod 62 to move. The first connecting rod 61 and the second connecting rod 62 drive the first curved plate 41 to move toward the branch pipe 13, releasing the fixation of the metal pipe, and at the same time, the sliding rod 131 gradually moves out of the metal pipe.

[0046] The implementation principle of a high-precision fixed-length laser cutting device for metal pipes in the embodiment of the present application is as follows: when the support plate 12 moves toward each other, the branch pipe 13, the turntable 4, the slide bar 131, and the first curved plate 41 are driven to move synchronously. As the slide bar 131 gradually extends into the metal pipe, the end of the metal pipe releases and prevents the first annular plate 44 from moving, causing the moving rod 46 and the second annular plate 91, the fixed rod 92, and the slide bar 131 to move toward the support plate 12. The slide bar 131 drives the first connecting rod 61 and the second connecting rod 62 to move. Under the guidance of the third slide groove 42, the first connecting rod 61 and the second connecting rod 62 move the first curved plate 41 away from the branch pipe 13, and at the same time, the spring 47 is stretched until the first curved plate 41 is tightly fitted with the inner wall of the metal pipe, and the metal pipe is fixed. When the turntable 4 rotates, it drives the metal pipe to rotate synchronously, and at the same time, the laser head 11 performs cutting. After the cutting is completed, the support plates 12 move away from each other, the spring 47 contracts, driving the second annular plate 91 to move in the opposite direction, the first arc plate 41 releases the metal pipe, and the slide rod 131 gradually withdraws from the pipe to complete the cutting of the metal pipe. No manual intervention is required for clamping or unclamping, which saves time and improves the work efficiency of metal pipe cutting.

[0047] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-precision fixed-length laser cutting device for metal pipes, comprising a cutting table (1) and a laser head (11), characterized in that: The cutting table (1) is provided with a fixing component (2) for fixing a laser head (11); two support plates (12) are slidably connected to the upper surface of the cutting table (1); the two support plates (12) are parallel to each other; the fixing component (2) is fixedly connected to one of the two support plates (12); the cutting table (1) is provided with a driving component (3) capable of driving the two support plates (12) to move toward or away from each other; the two sides of the two support plates (12) facing each other are both rotatably connected with a branch pipe (13); a turntable (4) is provided on the branch pipe (13); the branch pipe (13) passes through the turntable (4); the branch pipe (13) and the turntable (4) are connected to each other. The turntable (4) is fixedly connected, a rotating assembly (5) for driving the turntable (4) to rotate is arranged at the support plate (12), a plurality of first arc-shaped plates (41) are evenly distributed around the branch pipe (13), the first arc-shaped plates (41) are located on the side of the turntable (4) away from the support plate (12), one end of the first arc-shaped plate (41) close to the turntable (4) is slidably connected to the turntable (4), a first moving assembly (6) capable of driving the first arc-shaped plate (41) to move in a direction away from the branch pipe (13) is arranged at the branch pipe (13), and a lifting assembly (7) capable of lifting the metal pipe is arranged on the upper surface of the cutting table (1).

2. The high-precision fixed-length laser cutting equipment for metal pipes according to claim 1, characterized in that: The fixing assembly (2) comprises a first fixing plate (21) and a second fixing plate (22); the first fixing plate (21) is slidably connected to the upper surface of the cutting table (1); one end of the first fixing plate (21) is fixedly connected to a side wall of a support plate (12); a first sliding groove (211) is provided on one side of the first fixing plate (21) along the length direction of the cutting table (1); the first fixing plate (21) is slidably connected to a first sliding block (212) in the first sliding groove (211); one side of the second fixing plate (22) is fixedly connected to a side of the first sliding block (212) facing outside the first sliding groove (211); the laser head (11) is fixedly arranged on the second fixing plate (22); and a second moving assembly (8) for driving the first sliding block (212) to move is arranged on the first fixing plate (21).

3. The high-precision fixed-length laser cutting equipment for metal pipes according to claim 2, characterized in that: The second moving assembly (8) comprises a first motor (81) and a screw (82), the first motor (81) is fixedly connected to one side of the first fixed plate (21), the screw (82) is arranged in the first slide groove (211) along the length direction of the first slide groove (211), the opposite ends of the screw (82) are respectively rotatably connected to the opposite side walls of the first slide groove (211), the screw (82) passes through the first slider (212) and is threadedly connected to the first slider (212), and the output shaft of the first motor (81) passes through one side wall of the first slide groove (211) and is fixedly connected to one end of the screw (82).

4. The high-precision fixed-length laser cutting equipment for metal pipes according to claim 1, characterized in that: The cutting table (1) is provided with a second slide groove (14) penetrating along the length direction of the cutting table (1) at the support plate (12); a second slider (15) is slidably connected to the cutting table (1) at the second slide groove (14); the upper surface of the second slider (15) is fixedly connected to the support plate (12) and corresponds to the support plate (12); the lower end of the second slider (15) passes through the second slide groove (14); the driving component (3) comprises a second motor (31) and a bidirectional screw rod (32); the second motor (31) is fixedly connected to the lower surface of the cutting table (1); Two auxiliary plates (16) are fixedly arranged on the lower surface of the cutting table (1), the two auxiliary plates (16) are parallel to each other, a bidirectional screw rod (32) is arranged between the two auxiliary plates (16), two ends of the bidirectional screw rod (32) are rotatably connected to the two auxiliary plates (16) respectively, an output shaft of the second motor (31) passes through an auxiliary plate (16) and is fixedly connected to one end of the bidirectional screw rod (32), the bidirectional screw rod (32) passes through the lower ends of the two second sliders (15), and the second sliders (15) and the bidirectional screw rod (32) are threadedly connected.

5. The high-precision fixed-length laser cutting equipment for metal pipes according to claim 1, characterized in that: The rotating assembly (5) comprises a third motor (51) and a bearing plate (52); the bearing plate (52) is fixedly connected to a side of the support plate (12) facing away from the turntable (4); the third motor (51) is fixedly mounted on the bearing plate (52); and the output shaft of the third motor (51) is fixedly connected to the branch pipe (13).

6. The high-precision fixed-length laser cutting equipment for metal pipes according to claim 1, characterized in that: A plurality of third sliding grooves (42) are provided on a side of the rotating disk (4) facing the first arc-shaped plate (41), and a third sliding block (43) is slidably connected to the rotating disk (4) in the third sliding grooves (42), and a side of the third sliding block (43) facing the first arc-shaped plate (41) is fixedly connected to the first arc-shaped plate (41) and corresponds one to one.

7. The high-precision fixed-length laser cutting equipment for metal pipes according to claim 1, characterized in that: The branch pipe (13) is provided with a sliding rod (131), one end of the sliding rod (131) is located in the branch pipe (13), and the sliding rod (131) and the branch pipe (13) are slidably connected. The first moving component (6) comprises a first connecting rod (61) and a second connecting rod (62). A plurality of the first connecting rods (61) and the second connecting rod (62) are provided. The plurality of first connecting rods (61) are evenly distributed at one end of the sliding rod (131) outside the branch pipe (13). One end of the first connecting rod (61) is hinged to the sliding rod (131), and one end of the first connecting rod (61) away from the sliding rod (131) is hinged to the first arc plate (41) and one by one. Correspondingly, a plurality of first avoidance grooves (132) are formed through the side wall of the branch pipe (13), and the plurality of first avoidance grooves (132) are sequentially distributed along the circumferential side wall of the branch pipe (13). One end of the second connecting rod (62) passes through the first avoidance groove (132) and extends into the interior of the branch pipe (13) and is hinged to the slide rod (131). The second connecting rod (62) and the first avoidance groove (132) correspond one to one. One end of the second connecting rod (62) away from the slide rod (131) and one end of the first arc plate (41) close to the third slide block (43) are hinged and correspond one to one. A third moving component (9) for driving the slide rod (131) to move is provided at the branch pipe (13).

8. The high-precision fixed-length laser cutting equipment for metal pipes according to claim 7, characterized in that: A first annular plate (44) is provided on the side of the turntable (4) facing the first arc-shaped plate (41), the first annular plate (44) is sleeved outside the plurality of first arc-shaped plates (41), a moving rod (46) is fixedly provided on the side of the first annular plate (44) facing the turntable (4), an end of the moving rod (46) away from the turntable (4) passes through the turntable (4), the moving rod (46) and the turntable (4) are slidably connected, the third moving assembly (9) comprises a second annular plate (91) and a fixed rod (92), the second annular plate (91) and the moving rod (4 6) One end away from the first annular plate (44) is fixedly connected, the second annular plate (91) is sleeved outside the branch pipe (13), a second avoidance groove (133) is opened on the side wall of the branch pipe (13), one end of the fixed rod (92) is fixedly connected to the sliding rod (131), one end of the fixed rod (92) away from the sliding rod (131) passes through the second avoidance groove (133) and is fixedly connected to the second annular plate (91), a spring (47) is fixedly provided between the second annular plate (91) and the rotating disk (4), and the spring (47) is sleeved outside the branch pipe (13).

9. The high-precision fixed-length laser cutting equipment for metal pipes according to claim 1, characterized in that: The lifting assembly (7) comprises an electric cylinder (71) and a second arc-shaped plate (72); the electric cylinder (71) is fixedly mounted on the lower surface of the cutting table (1); the second arc-shaped plate (72) is arranged on the upper surface of the cutting table (1); the second arc-shaped plate (72) is located between two support plates (12); and an output shaft of the electric cylinder (71) passes through the upper surface of the cutting table (1) and is fixedly connected to the second arc-shaped plate (72).

10. The high-precision fixed-length laser cutting equipment for metal pipes according to claim 9, characterized in that: The upper surface of the cutting table (1) is provided with a placement groove (17) for parking the second arc-shaped plate (72).

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