A fully automatic laser pipe cutting machine

Abstract

The present invention discloses a full-automatic laser pipe cutting machine, which includes a rotary cutting mechanism, a seam rolling mechanism, a slag suction mechanism and a robotic arm assembly on the machine body; an installation bracket is provided on the rotary cutting mechanism, and a weight mechanism is provided on the installation bracket; the installation bracket is fixedly connected to an installation side plate, and the seam rolling mechanism is fixed on the installation side plate; a fixed bracket is provided on the machine body, and the slag suction mechanism is connected to the machine body through the fixed bracket; the robotic arm assembly is installed on the machine body table top, and a front-back track and an up-down track are provided on the robotic arm assembly. The circular pipe after cutting is clamped by a second clamping arm on the robotic arm assembly and then transferred to the seam rolling mechanism for operation; a fourth motor is provided on the frame, a motor gear is provided on the fourth motor, a rack is provided on the side surface of the machine body. After the motor gear meshes with the rack, when the fourth motor works, the whole machine body will move back and forth along the direction of the rack.

Description

Technical Field

[0001] The present invention belongs to the field of laser cutting, and particularly relates to a fully automatic laser pipe cutting machine. Background Art

[0002] The cup body of a heat-insulating cup is usually processed and manufactured using a round steel pipe. According to the actual size of the cup, the long steel pipe needs to be cut into short steel pipes of different lengths. Currently, on the market, an electric saw cutting machine and a laser cutting machine are mainly used for cutting metal round pipes. However, the cutting efficiency is low, the cutting accuracy is not high, and a large amount of metal debris and very loud noise are generated during the cutting process. The generated metal debris will adhere to the inner wall of the metal round pipe; this will not only affect the appearance, but also the cut of the round pipe will be uneven. At the same time, traditional cutting machines require manual feeding, and multiple people are needed to complete one cutting process, resulting in low overall efficiency. Therefore, the present invention provides a fully automatic laser pipe cutting machine. Summary of the Invention

[0003] The present invention provides a fully automatic laser pipe cutting device for solving the problems existing in the prior art. The present invention includes a rotary cutting mechanism and a slag suction mechanism. The round pipe to be cut can be continuously cut by the rotary cutting mechanism, and the metal debris generated during the cutting process will be processed by the slag suction mechanism; after a section of the metal round pipe is cut, the whole body of the machine moves to continuously cut the round pipe; at the same time, the cut round pipe will be conveyed to a seam rolling mechanism by a robotic arm assembly for seam rolling treatment. The entire cutting process is fully automatic and can operate continuously.

[0004] The invention object of the present invention is achieved through the following technical solutions: a fully automatic laser pipe cutting machine, including a frame and a machine body. The whole machine body is installed on the frame. The machine body is provided with a rotary cutting mechanism, a seam rolling mechanism, a slag suction mechanism and a robotic arm assembly; the rotary cutting mechanism is provided with a mounting bracket, and the mounting bracket is provided with a counterweight mechanism; the mounting bracket is fixedly connected to a mounting side plate, and the mounting side plate is parallel to the front of the machine body. The whole seam rolling mechanism is fixed on the mounting side plate; the machine body is also provided with a fixed bracket, and the slag suction mechanism is connected to the machine body through the fixed bracket; the whole robotic arm assembly is installed on the machine body tabletop. The robotic arm assembly is provided with a front-back track and an up-down track. The cut round pipe is clamped by a clamping arm II on the robotic arm assembly and then conveyed to the seam rolling mechanism for operation; the frame is provided with a motor IV, and the motor IV is provided with a motor gear. A rack is arranged on the side of the machine body. After the motor gear meshes with the rack, when the motor IV works, the whole machine body will move back and forth along the direction of the rack.

[0005] Preferably, a rotary cutting mechanism is provided on the fuselage. The rotary cutting mechanism includes a laser gun head, a third motor, and a rotating main shaft. The laser gun head is connected to an optical fiber, and the optical fiber is connected to an external circuit. The optical fiber provides a light source and a gas source for the laser gun head during operation. The laser gun head is fixed to a rotating disk, and the rotating disk is connected to the rotating main shaft. The rotating main shaft is connected to a rotary cutting gear through a transmission belt. The rotary cutting gear is connected to the third motor. After the third motor operates, it can drive the rotating main shaft to rotate. A first bearing is provided on the outer layer of the rotating main shaft. The rotating main shaft and the first bearing are integrally fixed to a mounting bracket. A second bearing is provided on the inner layer of the rotating main shaft. A clamping outer sleeve is provided on the inner layer of the second bearing. A die shaft is provided on the inner layer of the clamping outer sleeve. The die shaft is connected to a clamping sleeve. The clamping sleeve is coaxial with the rotating disk and is located at the exact center of the middle circular hole of the rotating disk. A third cylinder is provided on the mounting bracket. When the third cylinder operates, the clamping sleeve will tightly hold a round tube passing through the die shaft. The first bearing, the rotating main shaft, the second bearing, the clamping outer sleeve, and the die shaft are arranged in sequence from the outer layer to the inner layer, and the outer contour shapes of the above-mentioned parts can fit each other.

[0006] By providing the rotary cutting mechanism, a long round tube can be positioned and cut with a laser gun head to cut out the actual required length.

[0007] Preferably, a mounting bracket is provided on the rotary cutting mechanism, and a weight mechanism is provided on the mounting bracket. The weight mechanism includes a weight block, a main pulley, a secondary pulley, a connecting block, a guide rail, and a steel wire rope. The optical fiber on the rotary cutting mechanism first bypasses the rotating disk, then bypasses the main pulley and is connected to the outside. The main pulley is installed on the connecting block, and the connecting block is installed on the guide rail. The connecting block can move along the direction of the guide rail. The upper part of the connecting block is connected to the steel wire rope. The steel wire rope passes through the secondary pulley and is then connected to the weight block.

[0008] By providing the weight mechanism, the optical fiber on the rotary cutting mechanism can be neatly wound around the rotating disk on the rotary cutting mechanism.

[0009] Preferably, an installation side plate is provided on the installation bracket of the rotary cutting mechanism, and the rolling seam mechanism is integrally installed on the installation side plate; the rolling seam mechanism includes a fixed platform and a first moving platform. A first fixed track is provided on the installation side plate, and the first moving platform is installed on the first fixed track. A first motor is provided on the surface of the first moving platform. Driven by the first motor, the first moving platform can move back and forth along the direction of the first fixed track. A fifth cylinder and a second fixed track are provided on the first moving platform, and a second moving platform is installed on the second fixed track. Under the action of the fifth cylinder, the second moving platform can move back and forth along the direction of the second fixed track. A first cylinder and a third fixed track are provided on the second moving platform. The first cylinder is connected to the roller connection section, and the roller connection section is entirely stuck in the third fixed track. Driven by the first cylinder, the roller connection section can move back and forth along the direction of the third fixed track. A roller is provided at the front end of the roller connection section. The fixed platform is fixed on the installation side plate and remains relatively stationary with respect to the installation side plate. A second motor is provided on the fixed platform, and a motor shaft is provided on the second motor. The motor shaft completely passes through the fixed platform. The motor shaft is connected to a movable connecting piece. One end of the movable connecting piece is provided with a circular through hole. After passing through the circular through hole, the motor shaft is fixedly connected to the movable connecting piece, and the movable connecting piece rotates synchronously with the motor shaft. The other end of the movable connecting piece is provided with a kidney-shaped hole. The kidney-shaped holes are symmetric about the left and right and are overall elliptical. A connecting shaft is provided in the kidney-shaped hole, and the connecting shaft can move back and forth in the kidney-shaped hole. One end of the connecting shaft passes through the kidney-shaped hole and is then stuck in the groove of the fixed platform. The other end of the connecting shaft is connected to a connecting rod through a nut. The second motor drives the motor shaft to rotate, the motor shaft drives the movable connecting piece to rotate, and the movable connecting piece drives the connecting shaft to move back and forth in the groove of the fixed platform. One end of the connecting rod is connected to the connecting shaft, and the other end is connected to a second cylinder. The second cylinder is connected to a first clamping arm. By controlling the second cylinder, the first clamping arm will hold the round tube tightly. There is also a rolling seam main shaft on the first moving platform, and the outer surface of the rolling seam main shaft abuts against and fits with the inner surface of the round tube.

[0010] Preferably, the seam rolling mechanism is integrally mounted on the mounting side plate. There are two first moving platforms on the seam rolling mechanism. The positions of the two first moving platforms are symmetric left and right. The components on the two symmetric first moving platforms are exactly the same. The components on the first moving platform include a first cylinder, a first motor, a seam rolling main shaft, a roller, a roller connecting section, a second fixed track, a second moving platform, a fifth cylinder, and a third fixed track. After the clamping arm on the fixed platform of the seam rolling mechanism fixes the round tube, the seam rolling main shaft moves closer to the inner wall of the round tube driven by the first moving platform. The outer surfaces of the left and right seam rolling main shafts are in mutual contact with the inner surface of the round tube. The roller moves closer to the outer surface of the round tube driven by the first cylinder. When the first cylinder moves to the maximum stroke, the outer ring of the roller can be in complete contact with the outer surface of the round tube. The second moving platform moves along the direction of the second fixed track driven by the fifth cylinder. The second moving platform drives the roller to move on the surface of the round tube.

[0011] By providing the seam rolling mechanism, the weld seam of the round tube can be ground. The round tube is formed by bending and welding a whole steel plate, so there will be weld seams on the outer wall of the round tube.

[0012] Preferably, a robotic arm assembly is provided on the machine body. The robotic arm assembly includes a third moving platform, a front-back track, an up-down track, and a connecting platform. The third moving platform is mounted on the up-down track. The third moving platform can move along the direction of the up-down track. The up-down track is integrally mounted on the front-back track. The up-down track as a whole can move along the direction of the front-back track. A fourth fixed track is provided on the third moving platform. A connecting platform is provided on the fourth fixed track. A fourth cylinder is provided on the connecting platform. The fourth cylinder is connected to the second clamping arm. By the operation of the fourth cylinder, the second clamping arm can clamp the round tube. A sixth cylinder is provided on the third moving platform. When the sixth cylinder operates, the connecting platform can move along the direction of the fourth fixed track. The up-down track is provided with a sixth motor. After the sixth motor operates, the third moving platform can move along the direction of the up-down track. The front-back track is provided with a fifth motor. After the fifth motor operates, the up-down track and all components on the up-down track can move along the direction where the front-back track is located.

[0013] By providing the robotic arm assembly, the cut round tube can be transported to the seam rolling mechanism through the robotic arm assembly.

[0014] Preferably, a fixed bracket is provided on the fuselage, and a slag suction mechanism is provided on the fixed bracket; the slag suction mechanism includes a slag suction head, a slag suction rod, a slag suction motor, a fixed seat and a fixed track five; the fixed track five is installed on the fixed bracket, and a motor seven and a fixed seat are provided on the fixed track five. When the motor seven works, the whole fixed seat can move along the direction of the fixed track five; the fixed seat is equipped with a slag suction motor and a slag suction rod. A third bearing is provided between the slag suction rod and the fixed seat. A second gear fixed to the slag suction rod is provided on the outer layer of the slag suction rod. A first gear is provided on the slag suction motor. The first gear and the second gear are meshed. When the slag suction motor works, the slag suction rod can rotate; a connection port is provided at one end of the slag suction rod, and the connection port is connected to an external filtering device. A slag suction head is provided at the other end of the slag suction rod; a spray port and a suction port are provided on the slag suction head. A water flow pipe and a gas pipe are provided inside the slag suction rod. A water pipe socket is also provided on the outer layer of the slag suction rod, and the water pipe socket is communicated with the water flow pipe. The suction port is communicated with the gas pipe.

[0015] By setting up the slag suction mechanism, the metal chips generated during the cutting of the round tube can be sucked into the inside of the slag suction rod, and then connected to an external filtering device through the connection port on the slag suction mechanism for treatment.

[0016] Preferably, the jacket on the rotating mechanism and the round tube clamped inside the jacket maintain a coaxial position. The slag suction head on the slag suction mechanism penetrates into the round tube, and the slag suction head and the round tube maintain a coaxial position; the laser gun head on the rotary cutting mechanism and the slag suction rod on the slag suction mechanism maintain a synchronous rotation state.

[0017] By setting the jacket on the rotary cutting mechanism, the round tube and the slag suction head in a coaxial state, during the slag removal process of the slag suction mechanism, the slag suction head will not damage the inner wall of the round tube; at the same time, by setting the laser gun head and the slag suction rod to maintain a synchronous rotation state, the slag suction head can suck the metal chips at the laser cut in real time.

[0018] Preferably, the round tube is formed by bending and welding metal plates, and a weld seam will be formed on the surface of the round tube. During the continuous cutting of the round tube, it will be clamped by the jacket and the cylinder three on the rotary cutting mechanism, and the round tube will not rotate; after the round tube is cut, it is clamped by the clamping arm two on the robotic arm assembly and then transported to the seam rolling mechanism for seam rolling. Throughout the process, the weld seam on the surface of the round tube can always be in a vertically upward position.

[0019] By setting the jacket and the clamping arm two to fix the round tube, the weld seam on the surface of the round tube can always be in a vertically upward state, which facilitates the seam rolling mechanism to process the weld seam.

[0020] Compared with the prior art, the present invention has the following beneficial effects: compared with the traditional tube cutting equipment, the fully automatic laser tube cutting machine has higher tube cutting efficiency and the cut after laser tube cutting is smoother and flatter; the metal debris produced in the process of laser tube cutting can be effectively processed and the noise is reduced; the whole laser tube cutting process is fully automated and does not require workers to intervene, thus saving labor costs; at the same time, the whole cutting machine integrates rolling seams, slag suction and cutting, and the overall function is more complete. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front-view stereoscopic view of the present invention;

[0022] Figure 2 This is a three-dimensional view from the back side of the present invention;

[0023] Figure 3 for Figure 2 Stereoscopic view of the middle rolling seam mechanism;

[0024] Figure 4 It is a three-dimensional view of the rotary cutting mechanism;

[0025] Figure 5 is an enlarged view of the robot arm assembly;

[0026] Figure 6 for Figure 4 Stereoscopic view: the main view observed from the direction of the rotary cutting disk;

[0027] Figure 7 for Figure 6 A cross-sectional view of

[0028] Figure 8 for Figure 4 Back view of the rotary cutting mechanism;

[0029] Figure 9 It is a three-dimensional view of the counterweight mechanism;

[0030] Figure 10 This is a three-dimensional image of the present invention when viewed from above;

[0031] Figure 11 It is a cross-sectional view of the slag suction mechanism;

[0032] Figure 12 This is a three-dimensional view of the round tube to be rolled after cutting is completed;

[0033] Markings in the figure: 1. Frame; 2. Body; 3. Rack; 4. Counterweight mechanism; 41. Counterweight block; 42. Secondary pulley; 43. Main pulley; 44. Connecting block; 45. Guide rail; 46. Steel wire rope; 5. Slag suction mechanism; 51. Slag suction head; 52. Jet port; 53. Suction air port; 54. Water flow pipeline; 55. Gas pipeline; 56. Slag suction rod; 57. Slag suction motor; 58. Water pipe socket; 59. Third bearing; 510. Connection port; 511. Fixed seat; 512. Fixed track five; 513. Motor seven; 515. First gear; 516. Second gear; 6. Installation side plate; 7. Seam rolling mechanism; 71. Cylinder one; 72. Moving platform one; 73. Motor one; 74. Seam rolling main shaft; 75. Roller; 76. Roller connection section; 77. Motor two; 78. Motor shaft; 79. Fixed platform; 710. Movable connecting piece; 711. Connecting shaft; 712. Connecting rod; 713. Cylinder two; 715. Clamping arm one; 716. Fixed track one; 717. Fixed track two; 718. Moving platform two; 719. Cylinder five; 720. Fixed track three; 721. Groove; 722. Kidney-shaped hole; 8. Rotary cutting mechanism; 81. Laser gun head; 82. Optical fiber; 83. Rotary disk; 84. Motor three; 85. Transmission belt; 86. Rotary cutting gear; 87. Installation bracket; 88. Clamping sleeve; 89. First bearing; 810. Rotary main shaft; 811. Second bearing; 812. Clamping outer sleeve; 813. Die shaft; 814. Cylinder three; 9. Fixed bracket; 10. Motor four; 11. Motor gear; 12. Round pipe; 121. Weld seam; 13. Robot arm assembly; 131. Clamping arm two; 132. Cylinder four; 133. Motor five; 134. Front and rear tracks; 135. Up and down tracks; 136. Moving platform three; 137. Connecting platform; 138. Cylinder six; 139. Motor six; 140. Fixed track four Specific implementation mode

[0034] The present invention will be further described below in conjunction with the embodiments shown in the drawings:

[0035] In the following description, all concepts related to directions (or orientations) such as up, down, left, right, front, and back are in reference to the position state of the figure being described, aiming to facilitate public understanding. Therefore, they should not be construed as special limitations on the technical solutions provided by the present invention.

[0036] Embodiment 1

[0037] As Figures 1 to 11As shown in the figure, a fully automatic laser pipe cutting machine includes a frame 1 and a fuselage 2. The fuselage 2 is integrally installed on the frame 1. A rotary cutting mechanism 8, a seam rolling mechanism 7, a slag suction mechanism 5 and a robotic arm assembly 13 are provided on the fuselage 2. A mounting bracket 87 is provided on the rotary cutting mechanism. A counterweight mechanism 4 is provided on the mounting bracket 87. The mounting bracket 87 is fixedly connected to a mounting side plate 6. The mounting side plate 6 is parallel to the front of the fuselage 2. The seam rolling mechanism 7 is integrally fixed on the mounting side plate 6. A fixed bracket 9 is further provided on the fuselage 2. The slag suction mechanism 5 is connected to the fuselage 2 through the fixed bracket 9. The robotic arm assembly 13 is integrally installed on the tabletop of the fuselage 2. A front-back track 134 and an up-down track 135 are provided on the robotic arm assembly 13. The circular pipe 12 after cutting is clamped by a second clamping arm 131 on the robotic arm assembly 13 and then conveyed to the seam rolling mechanism 7 for operation. A fourth motor 10 is provided on the frame 1. A motor gear 11 is provided on the fourth motor 10. A rack 3 is provided on the side of the fuselage 2. After the motor gear 11 meshes with the rack 3 and the fourth motor 10 works, the entire fuselage 2 will move back and forth along the direction of the rack 3.

[0038] A rotary cutting mechanism 8 is provided on the fuselage 2. The rotary cutting mechanism 8 includes a laser gun head 81, a third motor 84 and a rotary main shaft 810. The laser gun head 81 is connected to an optical fiber 82. The optical fiber 82 is connected to an external circuit. The optical fiber 82 provides a light source and a gas source for the laser gun head 81 during operation. The laser gun head 81 is fixed to a rotating disk 83. The rotating disk 83 is connected to the rotary main shaft 810. The rotary main shaft 810 is connected to a rotary cutting gear 86 through a transmission belt 85. The rotary cutting gear 86 is connected to the third motor 84. After the third motor 84 works, it can drive the rotary main shaft 810 to rotate. A first bearing 89 is provided on the outer layer of the rotary main shaft 810. The rotary main shaft 810 and the first bearing 89 are integrally fixed on the mounting bracket 87. A second bearing 811 is provided on the inner layer of the rotary main shaft 810. A clamping outer sleeve 812 is provided on the inner layer of the second bearing 811. A die shaft 813 is provided on the inner layer of the clamping outer sleeve 812. The die shaft 813 is connected to a clamping sleeve 88. The clamping sleeve 88 is coaxial with the rotating disk 83 and is located at the exact center of the middle circular hole of the rotating disk 83. A third cylinder 814 is provided on the mounting bracket 87. When the third cylinder 814 works, the clamping sleeve 88 will tightly hold the circular pipe 12 passing through the die shaft 813. The first bearing 89, the rotary main shaft 810, the second bearing 811, the clamping outer sleeve 812 and the die shaft 813 are arranged in sequence from the outer layer to the inner layer, and the outer contour shapes of the above-mentioned parts can fit each other.

[0039] An installation bracket 87 is provided on the rotary cutting mechanism 8, and a counterweight mechanism 4 is provided on the installation bracket 87; the counterweight mechanism 4 includes a counterweight block 41, a main pulley 43, a secondary pulley 42, a connecting block 44, a guide rail 45 and a steel wire rope 46; the optical fiber 82 on the rotary cutting mechanism 8 first bypasses the rotating disk 83 and then bypasses the main pulley 43 before being connected to the outside; the main pulley 43 is installed on the connecting block 44, the connecting block 44 is installed on the guide rail 45, and the connecting block 44 can move along the direction of the guide rail 45; the upper part of the connecting block 44 is connected to the steel wire rope 46, and the steel wire rope 46 passes through the secondary pulley 42 and then is connected to the counterweight block 41.

[0040] An installation side plate 6 is provided on the mounting bracket 87 of the described rotary cutting mechanism 8, and the entire seaming mechanism 7 is mounted on the installation side plate 6; the seaming mechanism 7 includes a fixed platform 79 and a first moving platform 72. A first fixed track 716 is provided on the installation side plate 6, and the first moving platform 72 is mounted on the first fixed track 716. A first motor 73 is provided on the surface of the first moving platform 72. Driven by the first motor 73, the first moving platform 72 can move back and forth along the direction of the first fixed track 716. A fifth cylinder 719 and a second fixed track 717 are provided on the first moving platform 72, and a second moving platform 718 is mounted on the second fixed track 717. Under the action of the fifth cylinder 719, the second moving platform 718 can move back and forth along the direction of the second fixed track 717; a first cylinder 71 and a third fixed track 720 are provided on the second moving platform 718. The first cylinder 71 is connected to the roller connecting section 76, and the entire roller connecting section 76 is stuck inside the third fixed track 720. Driven by the first cylinder 71, the roller connecting section 76 can move back and forth along the direction of the third fixed track 720. A roller 75 is provided at the front end of the roller connecting section 76; the fixed platform 79 is fixed on the installation side plate 6 and remains relatively stationary with respect to the installation side plate 6; a second motor 77 is provided on the fixed platform 79, and a motor shaft 78 is provided on the second motor 77. The motor shaft 78 completely passes through the fixed platform 79; the motor shaft 78 is connected to the movable connecting piece 710. One end of the movable connecting piece 710 is provided with a circular through hole. After passing through the circular through hole, the motor shaft 78 is fixedly connected to the movable connecting piece 710, and the movable connecting piece 710 rotates synchronously with the motor shaft 78; the other end of the movable connecting piece 710 is provided with a kidney-shaped hole 722. The kidney-shaped holes 722 are symmetric about the left and right and are overall elliptical. A connecting shaft 711 is provided inside the kidney-shaped hole 722, and the connecting shaft 711 can move back and forth inside the kidney-shaped hole 722; one end of the connecting shaft 711 passes through the kidney-shaped hole 722 and is then stuck in the groove 721 of the fixed platform 79. The other end of the connecting shaft 711 is connected to the connecting rod 712 through a nut; the second motor 77 drives the motor shaft 78 to rotate, the motor shaft 78 drives the movable connecting piece 710 to rotate, and the movable connecting piece 710 will drive the connecting shaft 711 to move back and forth in the groove 721 of the fixed platform 79; one end of the connecting rod 712 is connected to the connecting shaft 711, and the other end is connected to the second cylinder 713. The second cylinder 713 is connected to the first clamping arm 715. By controlling the second cylinder 713, the first clamping arm 715 will hold the round tube 12 tightly; there is also a seaming main shaft 74 on the first moving platform 72. The outer surface of the seaming main shaft 74 abuts against the inner surface of the round tube 12 and fits with the inner surface of the round tube 12;The described seam rolling mechanism 7 is integrally installed on the installation side plate 6. There are two first moving platforms 72 on the seam rolling mechanism 7. The positions of the two first moving platforms 72 are symmetric left and right. The components on the two symmetric first moving platforms 72 are exactly the same. The components on the first moving platform 72 include a first cylinder 71, a first motor 73, a seam rolling main shaft 74, a roller 75, a roller connection section 76, a second fixed track 717, a second moving platform 718, a fifth cylinder 719, and a third fixed track 720. After the first clamping arm 715 on the fixed platform 79 of the seam rolling mechanism 7 fixes the round tube 12, the seam rolling main shaft 74 moves closer to the inner wall of the round tube 12 driven by the first moving platform 72. The outer surfaces of the left and right seam rolling main shafts 74 are in mutual contact with the inner surface of the round tube 12. The roller 75 moves closer to the outer surface of the round tube 12 driven by the first cylinder 71. When the first cylinder 71 moves to the maximum stroke, the outer ring of the roller 75 can be in complete contact with the outer surface of the round tube 12. The second moving platform 718 moves along the direction of the second fixed track 717 driven by the fifth cylinder 719. The second moving platform 718 drives the roller 75 to move on the surface of the round tube 12.

[0041] A robotic arm assembly 13 is provided on the fuselage 2. The robotic arm assembly 13 includes a third moving platform 136, a front and rear track 134, an up and down track 135, and a connecting platform 137. The third moving platform 136 is installed on the up and down track 135. The third moving platform 136 can move along the direction of the up and down track 135. The up and down track 135 is integrally installed on the front and rear track 134. The up and down track 135 as a whole can move along the direction of the front and rear track 134. A fourth fixed track 140 is provided on the third moving platform 136. A connecting platform 137 is provided on the fourth fixed track 140. A fourth cylinder 132 is provided on the connecting platform 137. The fourth cylinder 132 is connected to the second clamping arm 131. By the operation of the fourth cylinder 132, the second clamping arm 131 can clamp the round tube 12. A sixth cylinder 138 is provided on the third moving platform 136. When the sixth cylinder 138 operates, the connecting platform 137 can move along the direction of the fourth fixed track 140. A sixth motor 139 is provided on the up and down track 135. After the sixth motor 139 operates, the third moving platform 136 can move along the direction of the up and down track 135. A fifth motor 133 is provided on the front and rear track 134. After the fifth motor 133 operates, the up and down track 135 and all components on the up and down track 135 can move along the direction where the front and rear track 134 is located.

[0042] A fixed bracket 9 is provided on the fuselage 2, and a slag suction mechanism 5 is provided on the fixed bracket 9; the slag suction mechanism 5 includes a slag suction head 51, a slag suction rod 56, a slag suction motor 57, a fixed seat 511, and a fixed track five 512; the fixed track five 512 is installed on the fixed bracket 9, and a motor seven 513 and a fixed seat 511 are provided on the fixed track five 512. When the motor seven 513 works, the whole fixed seat 511 can move along the direction of the fixed track five 512; a slag suction motor 57 and a slag suction rod 56 are installed on the fixed seat 511, and a third bearing 59 is provided between the slag suction rod 56 and the fixed seat 511. A second gear 516 fixed to the slag suction rod 56 is provided on the outer layer of the slag suction rod 56, and a first gear 515 is provided on the slag suction motor 57. The first gear 515 and the second gear 516 are meshed. When the slag suction motor 57 works, the slag suction rod 56 can be rotated; a connection port 510 is provided at one end of the slag suction rod 56, and the connection port 510 is connected to an external filtering device. A slag suction head 51 is provided at the other end of the slag suction rod 56; a jet port 52 and a suction port 53 are provided on the slag suction head 51. A water flow pipe 54 and a gas pipe 55 are provided inside the slag suction rod 56. A water pipe socket 59 is also provided on the outer layer of the slag suction rod 56, and the water pipe socket 59 is communicated with the water flow pipe 54. The suction port 53 is communicated with the gas pipe 55.

[0043] The collet 88 on the rotary cutting mechanism 8 and the round tube 12 clamped inside the collet 88 maintain a coaxial position. The slag suction head 51 on the slag suction mechanism 5 penetrates into the round tube 12, and the slag suction head 51 and the round tube 12 maintain a coaxial position; when the slag suction head 51 approaches the inner wall of the round tube 12, the slag suction head 51 will not interfere with the inner wall of the round tube 12. The laser gun head 81 and the slag suction rod 56 maintain a synchronous rotation state; the round tube 12 is formed by bending and welding metal plates, and a weld seam 121 will be formed on the surface of the round tube 12. During the continuous cutting process of the round tube 12, it will be clamped by the collet 88 and the cylinder three 814 on the rotary cutting mechanism 8, and the round tube 12 will not rotate; after the round tube 12 is cut, it is clamped by the clamping arm two 131 on the robotic arm assembly 13 and then conveyed to the seam rolling mechanism 7 for seam rolling. Throughout the process, the weld seam on the surface of the round tube 12 can always be in a vertically upward position.

[0044] Specifically, the circular tube 12 passes through the rotary cutting mechanism 8. The jacket 88 on the rotary cutting mechanism 8 will hold the circular tube 12 tightly under the action of the third cylinder 814. At this time, the laser gun head 81 will cut the circular tube 12. Meanwhile, the slag suction mechanism 5 is driven by the seventh motor 513 and moves closer to the circular tube 12 along the direction of the fixed track five 512. The slag suction rod 56 of the slag suction mechanism 5 will rotate synchronously with the laser gun head 81, and the slag suction head 51 on the slag suction rod 56 will suck the metal debris on the inner wall of the circular tube 12 in real time. After the circular tube 12 is cut, it is transported to the seam rolling mechanism 7 by the robotic arm assembly 13. At the same time, the platform of the fuselage 2 moves driven by the fourth motor 10, and the rotary cutting mechanism 8 can continue to cut a new circular tube 12. Moreover, the slag suction mechanism 5, the robotic arm assembly 13, and the seam rolling mechanism 7 repeat the above steps to achieve a continuous cutting state.

[0045] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A fully automatic laser pipe cutting machine, comprising a frame (1) and a fuselage (2), characterized in that, The described fuselage is integrally mounted on the frame. A rotary cutting mechanism (8), a seam rolling mechanism (7), a slag suction mechanism (5), and a robotic arm assembly (13) are provided on the fuselage. An installation bracket is provided on the rotary cutting mechanism, and a weight balancing mechanism (4) is provided on the installation bracket. The installation bracket (87) is fixedly connected to the installation side plate (6). The installation side plate is parallel to the front of the fuselage, and the seam rolling mechanism is integrally fixed on the installation side plate. A fixed bracket (9) is also provided on the fuselage, and the slag suction mechanism is connected to the fuselage through the fixed bracket. The robotic arm assembly is integrally mounted on the fuselage table top. A front-back track (134) and an up-down track (135) are provided on the robotic arm assembly. After cutting, the round tube (12) is clamped by the second clamping arm (131) on the robotic arm assembly and then transferred to the seam rolling mechanism for operation. A fourth motor (10) is provided on the frame, and a motor gear (11) is provided on the fourth motor. A rack (3) is provided on the side of the fuselage. After the motor gear meshes with the rack, when the fourth motor works, the entire fuselage will move back and forth along the direction of the rack. An installation side plate is provided on the installation bracket of the rotary cutting mechanism, and the seam rolling mechanism is integrally mounted on the installation side plate. The seam rolling mechanism includes a fixed platform (79) and a first moving platform (72). A first fixed track (716) is provided on the installation side plate, and the first moving platform is mounted on the first fixed track. A first motor (73) is provided on the surface of the first moving platform. The first moving platform can move back and forth along the direction of the first fixed track under the drive of the first motor. A fifth cylinder (719) and a second fixed track (717) are provided on the first moving platform. A second moving platform (718) is mounted on the second fixed track. The second moving platform can move back and forth along the direction of the second fixed track under the action of the fifth cylinder. A first cylinder (71) and a third fixed track (720) are provided on the second moving platform. The first cylinder is connected to the roller connecting section (76), and the roller connecting section is integrally stuck in the third fixed track. The roller connecting section can move back and forth along the direction of the third fixed track under the drive of the first cylinder. A roller (75) is provided at the front end of the roller connecting section. The fixed platform (79) is fixed on the installation side plate and remains in a relatively static state with respect to the installation side plate. A second motor (77) is provided on the fixed platform, and a motor shaft (78) is provided on the second motor. The motor shaft completely passes through the fixed platform. The motor shaft is connected to the movable connecting piece (710). One end of the movable connecting piece is provided with a circular through hole. After the motor shaft passes through the circular through hole, it is fixedly connected to the movable connecting piece, and the movable connecting piece rotates synchronously with the motor shaft. The other end of the movable connecting piece is provided with a kidney-shaped hole (722). The kidney-shaped holes are symmetric left and right and are overall elliptical. A connecting shaft (711) is provided in the kidney-shaped hole, and the connecting shaft can move back and forth in the kidney-shaped hole.One end of the connecting shaft passes through the kidney-shaped hole and is then stuck in the groove (721) of the fixed platform. The other end of the connecting shaft is connected to the connecting rod (712) through a nut. The second motor drives the motor shaft to rotate, and the motor shaft drives the movable connecting piece to rotate. The movable connecting piece will drive the connecting shaft to move back and forth in the groove of the fixed platform. One end of the connecting rod is connected to the connecting shaft, and the other end is connected to the second cylinder (713). The second cylinder is connected to the first clamping arm (715). By controlling the second cylinder, the first clamping arm will clamp the round tube tightly. There is also a seam rolling main shaft (74) on the first moving platform. The outer surface of the seam rolling main shaft will press against the inner surface of the round tube and fit with the inner surface of the round tube.

2. The full-automatic laser pipe cutting machine according to claim 1, wherein, The fuselage is provided with a rotary cutting mechanism, and the rotary cutting mechanism includes a laser gun head (81), a third motor (84), and a rotary main shaft (810); the laser gun head is connected to an optical fiber (82), the optical fiber is connected to an external circuit, and the optical fiber provides a light source and a gas source for the laser gun head during operation; the laser gun head is fixed to a rotary disk (83), the rotary disk is connected to the rotary main shaft, and the rotary main shaft is connected to a rotary cutting gear (86) through a transmission belt (85); the rotary cutting gear is connected to the third motor (84), and after the third motor operates, it can drive the rotary main shaft to rotate; the outer layer of the rotary main shaft is provided with a first bearing (89), and the rotary main shaft and the first bearing are integrally fixed to the mounting bracket; the inner layer of the rotary main shaft is provided with a second bearing (811), the inner layer of the second bearing is provided with a clamping outer sleeve (812), the inner layer of the clamping outer sleeve is provided with a die shaft (813), the die shaft is connected to a collet (88), the collet is coaxial with the rotary disk and is located at the exact center of the middle circular hole of the rotary disk; the mounting bracket is provided with a third cylinder (814), and when the third cylinder operates, the collet will tightly hold the round tube passing through the die shaft; the first bearing, the rotary main shaft, the second bearing, the clamping outer sleeve, and the die shaft are arranged in sequence from the outer layer to the inner layer, and the outer contour shapes of the above parts can fit each other.

3. The fully automatic laser pipe cutting machine according to claim 1, wherein, The rotary cutting mechanism is provided with a mounting bracket, and the mounting bracket is provided with a weight balancing mechanism; the weight balancing mechanism includes a weight block (41), a main pulley (43), a secondary pulley (42), a connecting block (44), a guide rail (45), and a steel wire rope (46); the optical fiber on the rotary cutting mechanism first bypasses the rotary disk, then bypasses the main pulley and is connected to the outside; the main pulley is installed on the connecting block, the connecting block is installed on the guide rail, and the connecting block can move along the direction of the guide rail; the upper part of the connecting block is connected to the steel wire rope, and the steel wire rope passes through the secondary pulley and is then connected to the weight block.

4. The full-automatic laser pipe cutting machine according to claim 1, characterized in that, The seam rolling mechanism is integrally installed on the mounting side plate. The seam rolling mechanism is provided with two first moving platforms, the positions of the two first moving platforms are symmetric left and right, and the components on the two symmetric first moving platforms are exactly the same. The components on the first moving platform include a first cylinder, a first motor, a seam rolling main shaft, rollers, roller connecting sections, a second fixed track, a second moving platform, a fifth cylinder, and a third fixed track; after the clamping arm on the fixed platform of the seam rolling mechanism fixes the round tube, the seam rolling main shaft approaches the inner wall of the round tube driven by the first moving platform, and the outer surfaces of the left and right seam rolling main shafts are in mutual contact with the inner surface of the round tube. The rollers approach the outer surface of the round tube driven by the first cylinder. When the first cylinder moves to the maximum stroke, the outer ring of the roller can be in complete contact with the outer surface of the round tube; the second moving platform moves along the direction of the second fixed track driven by the fifth cylinder, and the second moving platform drives the rollers to move on the surface of the round tube.

5. The full-automatic laser pipe cutting machine according to claim 1, characterized in that, A robotic arm assembly is provided on the fuselage. The robotic arm assembly includes a third moving platform (136), a front-back track (134), an up-down track (135), and a connecting platform (137). The third moving platform is mounted on the up-down track and can move along the direction of the up-down track. The up-down track is integrally mounted on the front-back track and can move along the direction of the front-back track as a whole. A fourth fixed track (140) is provided on the third moving platform, and a connecting platform (137) is provided on the fourth fixed track. A fourth cylinder (132) is provided on the connecting platform and is connected to a second clamping arm (131). By operating the fourth cylinder, the second clamping arm can clamp the round tube. A sixth cylinder (138) is provided on the third moving platform. When the sixth cylinder operates, the connecting platform can move along the direction of the fourth fixed track. The up-down track is provided with a sixth motor (139). After the sixth motor operates, the third moving platform can move along the direction of the up-down track. The front-back track is provided with a fifth motor (133). After the fifth motor operates, the up-down track and all components on the up-down track can move along the direction of the front-back track.

6. The full-automatic laser pipe cutting machine according to claim 1, wherein A fixed bracket (9) is provided on the fuselage, and a slag suction mechanism is provided on the fixed bracket. The slag suction mechanism includes a slag suction head (51), a slag suction rod (56), a slag suction motor (57), a fixed seat (511), and a fifth fixed track (512). The fifth fixed track is mounted on the fixed bracket. A seventh motor (513) and a fixed seat are provided on the fifth fixed track. When the seventh motor operates, the fixed seat can move as a whole along the direction of the fifth fixed track. The slag suction motor and the slag suction rod are mounted on the fixed seat. A third bearing (59) is provided between the slag suction rod and the fixed seat. A second gear (516) fixed to the slag suction rod is provided on the outer layer of the slag suction rod. A first gear (515) is provided on the slag suction motor. The first gear and the second gear mesh with each other. When the slag suction motor operates, the slag suction rod can rotate. A connection port (510) is provided at one end of the slag suction rod and is connected to an external filtering device. A slag suction head is provided at the other end of the slag suction rod. A spray port (52) and a suction port (53) are provided on the slag suction head. A water flow pipe (54) and a gas pipe (55) are provided inside the slag suction rod. A water pipe socket (58) is also provided on the outer layer of the slag suction rod, and the water pipe socket is communicated with the water flow pipe. The suction port is communicated with the gas pipe.

7. The full-automatic laser pipe cutting machine according to claim 1, characterized in that, The chuck on the rotary cutting mechanism and the round tube clamped inside the chuck maintain a concentric position. The slag suction head on the slag suction mechanism penetrates into the round tube, and the slag suction head and the round tube maintain a concentric position. The laser gun head on the rotary cutting mechanism and the slag suction rod on the slag suction mechanism maintain a synchronous rotation state.

8. The fully automatic laser pipe cutting machine according to claim 1, wherein, The described circular tube (12) is formed by bending and welding metal sheets, and a weld seam (121) will be formed on the surface of the circular tube. During the continuous cutting process of the circular tube, it will be clamped tightly by the jacket on the rotary cutting mechanism and the third cylinder, and the circular tube will not rotate. After the circular tube is cut, it is clamped by the second clamping arm on the robotic arm assembly and then conveyed to the seam rolling mechanism for seam rolling. Throughout the process, the weld seam on the surface of the circular tube can always be in a position where it is vertically upward.

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