Laser pipe cutting machine for pipe fittings for tunnel construction

Abstract

The invention belongs to the technical field of laser cutting, and particularly discloses a laser pipe cutting machine for pipe fittings for tunnel construction, which comprises a laser cutting head and a laser transmitter positioned at the top of the laser cutting head, the laser transmitter is mounted at the front side part of a frame plate through a lifting device, a bottom plate is arranged at the bottom of the frame plate, and a bottom frame is arranged at the top of the bottom plate. Two parallel rollers are arranged at the top of the underframe, a hose is placed at the tops of the rollers, and the bottom end of the laser cutting head corresponds to the circumferential outer side face of the hose. By pulling the hose to move leftwards, the left side end of the hose is gradually placed on the tops of the rolling wheels of the two cross rods, the upper frame moving downwards extrudes the top of the hose through cooperation of the two limiting sleeves, the bottom frame supports the hose through cooperation of the two rotating rollers, and the upper frame extrudes the left side end of the hose through the rolling wheels on the surfaces of the inserting rods; the two rotating rollers and the two limiting sleeves enable the hose to be in a horizontal state, and the hose is prevented from being in a bent or curled state in the rotating process.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cutting, and in particular relates to a laser pipe cutting machine for pipe fittings used in tunnel construction. Background Art

[0002] Laser tube cutting machine is a kind of equipment that cuts tubes by laser.

[0003] A Chinese patent with application number CN202410558764.6 discloses a loading and unloading device for a laser tube cutting machine. When loading the tube, the support block is moved to the second position, and then the first power assembly is started. The first power assembly switches the support block and the tube from the second position to the first position. When the support block is in the first position, the central axis of the tube coincides with the central axis of the chuck, and then the chuck is controlled to move toward the direction of the tube so that the end of the tube is located in the middle of multiple claws of the chuck, and then the claws are controlled to clamp to achieve the loading of the tube.

[0004] However, this feeding method is only suitable for straight pipes that are not easy to deform. When cutting corrugated pipes, the corrugated pipes can be rolled up and easily deformed. When the chuck is clamped by the claws and drives the corrugated pipe to move away from the first position, the corrugated pipe between the chuck and the first position is no longer supported. The corrugated pipe is a metal pipe and is heavy. The corrugated pipe between the chuck and the first position will be subjected to pulling force on the corrugated pipe at the first position, and the corrugated pipe at the first position will continue to move toward the chuck, making the corrugated pipe between the chuck and the first position U-shaped, and the laser cutting head cannot cut it.

[0005] Therefore, it is necessary to invent a laser pipe cutting machine for pipe fittings for tunnel construction to solve the above problems. Summary of the invention

[0006] In view of the above problems, the present invention provides a laser pipe cutting machine for pipes used in tunnel construction to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser pipe cutting machine for pipe fittings for tunnel construction, comprising a laser cutting head and a laser emitter at the top of the laser cutting head, wherein the laser emitter is installed at the front side of a frame plate through a lifting device, a bottom plate is arranged at the bottom of the frame plate, a bottom frame is arranged at the top of the bottom plate, two parallel rollers are arranged at the top of the bottom frame, a hose is placed on the top of the roller, the bottom end of the laser cutting head corresponds to the outer side of the circumference of the hose, the bottom frame comprises two parallel vertical side plates, and the roller is located between the two side plates, a transverse groove is arranged at the top of the side plate, and convex rods are arranged at both ends of the roller, and a movable The roller slides on the inner side of the transverse groove by means of a convex rod, a power component for controlling the rotation of the roller is arranged on the right side of the base frame, an upper frame is arranged on the top of the hose, and two parallel limiting sleeves are arranged on the bottom of the upper frame, the top of the upper frame is transmission-connected to the output end of the cylinder, and the cylinder is installed on the front side of the frame plate. When the cylinder works, the output end of the cylinder enables the upper frame to drive the two limiting sleeves to cooperate and squeeze on the top of the hose, and the power component enables the two rollers to rotate synchronously, and the synchronously rotating rollers enable the hose to rotate in the opposite direction, and the laser cutting head cuts the hose rotating in the opposite direction, and the hose rotating in the opposite direction enables the two limiting sleeves to rotate, and the rotation direction of the limiting sleeves is the same as that of the rollers.

[0008] Furthermore, the power component includes a driving gear, and a driven gear is fixed to the right side of the roller by a convex rod. The driving gear is at the bottom of the driven gear. The driving gear and the driven gear are matched on the outside by belt transmission. The rotating driving gear uses a belt to make the two driven gears rotate synchronously, and the side transmission of the driving gear is connected to the output end of the motor.

[0009] Furthermore, the motor is installed on the top surface of the movable plate, and a vertical rod penetrating the movable plate is fixed to the right side of the base frame. A first spring is sleeved on the surface of the vertical rod, the bottom end of the first spring is connected to the top surface of the movable plate, and the top end of the first spring is connected to the top end of the vertical rod. The elastic force of the first spring causes the driving gear at the output end of the motor to pull the belt.

[0010] Furthermore, a limiting frame is provided on the left side of the base frame, and two movable rings are slidably clamped on the top of the limiting frame. A sliding groove corresponding to the movable ring is provided on the top surface of the limiting frame, a screw rod passes through the surface of the limiting frame, and the movable ring is spirally sleeved on the surface of the screw rod. An internal thread is provided on the inner ring surface of the movable ring, and the internal threads of the two movable rings are in opposite directions. Rotating wheels are fixed at both ends of the screw rod. When the rotating wheel causes the screw rod to rotate, the rotating screw rod causes the two movable rings to approach or move away from each other.

[0011] Furthermore, a cross bar is fixed on the top side of the movable ring, a movable plate is fixed on the right side of the cross bar, the two movable plates correspond to the two rollers one by one, and a groove corresponding to the convex rod is provided on the right side of the movable plate.

[0012] Furthermore, an inner rod passing through the base frame is fixed to the top surface of the bottom plate, a groove corresponding to the inner rod is provided on the inner side of the movable plate, a second spring is sleeved on the right side of the inner rod, one end of the second spring is connected to the right side surface of the base frame, and the other end of the second spring is connected to the right end of the inner rod, a fastening sleeve is spirally sleeved on the surface of the inner rod, and the right side surface of the fastening sleeve is in contact with the inner side surface of the side plate of the right side.

[0013] Furthermore, two plug rods are inserted through one side of the upper rack, and two limiting sleeves correspond to the two plug rods one by one. The limiting sleeves are rotatably sleeved on the surfaces of the plug rods, and the ends of the two plug rods are fixedly connected by connecting plates. The cross bar and the surface of the plug rod are sleeved with rollers, and the two cross bar wheels use rollers to limit the bottom of the hose, and the two plug rods use rollers to limit the top of the hose.

[0014] Furthermore, two nuts are spirally sleeved on the surface of the cross bar and the surface of the insertion rod, the roller is located between the two nuts, the side surface of the roller fits with the inner side surface of the nut, and lubricating oil is applied to the surface of the roller.

[0015] Technical effects and advantages of the present invention: 1. The present invention pulls the hose to move left, and the left end of the hose is gradually placed on the top of the rollers of the two cross bars. The lowered upper frame uses two limiting sleeves to squeeze the top of the hose, and the bottom frame uses two rollers to support the hose. The upper frame uses rollers on the surface of the insertion rod to squeeze the left end of the hose. The two rollers and the two limiting sleeves keep the hose in a horizontal state, preventing the hose from being bent or curled during the rotation process.

[0016] 2. The present invention rotates the wheels in opposite directions. The wheels rotate in opposite directions use screws to move the two moving rings away from each other. At this time, the moving rings use moving plates and convex rods to move the rollers synchronously, so that the relative distance between the two rollers can be adjusted in real time according to the outer diameter of the hose, and hoses with different outer diameters can be placed on the top of the chassis.

[0017] 3. The present invention rotates the nuts so that the two nuts drive the rollers to move synchronously. The nuts are used to adjust the positions of the rollers in real time, so that the rollers can be moved to the cutting position of the hose conveniently. The hose is kept in a horizontal state by the limitation of the four rollers. When the hose rotates, the rotating hose causes the rollers to rotate, and the laser cutting head cuts the rotating hose, ensuring that the cut surface of the hose is in a smooth state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 1 is an overall schematic diagram of a laser pipe cutting machine for pipes for tunnel construction according to an embodiment of the present invention; Figure 2 is a schematic diagram of a power component on the right side of a chassis according to an embodiment of the present invention; Figure 3 is a schematic diagram of a bottom frame supporting a hose using two rollers according to an embodiment of the present invention; Figure 4 is a three-dimensional schematic diagram of a cross-section of a limiting frame according to an embodiment of the present invention; Figure 5 This is a schematic diagram of two plug-in rods connected to a rack according to an embodiment of the present invention; In the figure: 1. laser cutting head; 2. bottom plate; 3. bottom frame; 4. roller; 5. hose; 6. transverse groove; 7. protruding rod; 8. upper frame; 9. limiting sleeve; 10. cylinder; 11. driving gear; 12. driven gear; 13. belt; 14. motor; 15. movable plate; 16. vertical rod; 17. first spring; 18. limiting frame; 19. moving ring; 20. screw; 21. rotating wheel; 22. transverse rod; 23. moving plate; 24. slot; 25. inner rod; 26. second spring; 27. fastening sleeve; 28. insertion rod; 29. ​​roller; 30. nut. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0020] The present invention provides a laser pipe cutting machine for pipe fittings used in tunnel construction, such as Figure 1 As shown, it includes a laser cutting head 1 and a laser emitter at the top of the laser cutting head 1, wherein the laser emitter is installed on the front side of the frame through a lifting device, and a base plate 2 is provided at the bottom of the frame. The lifting device is a prior art, and the laser emitter drives the laser cutting head 1 to move up and down through the lifting device.

[0021] A base frame 3 is arranged on the top of the bottom plate 2, and two parallel rollers 4 are arranged on the top of the base frame 3. A hose 5 is placed on the top of the roller 4. The hose 5 is made of metal material. The bottom end of the laser cutting head 1 corresponds to the outer circumferential surface of the hose 5. The base frame 3 includes two parallel vertical side plates, and the roller 4 is between the two side plates. A transverse groove 6 is arranged on the top of the side plate. Both ends of the roller 4 are provided with a convex rod 7. The movable roller 4 slides inside the transverse groove 6 by using the convex rod 7. A power component for controlling the rotation of the roller 4 is arranged on the right side of the base frame 3. The top of the hose 5 is provided with a An upper frame 8 is provided, and two parallel limiting sleeves 9 are arranged at the bottom of the upper frame 8. The top of the upper frame 8 is connected to the output end of the cylinder 10. The cylinder 10 is installed on the front side of the frame plate. When the cylinder 10 works, the output end of the cylinder 10 enables the upper frame 8 to drive the two limiting sleeves 9 to cooperate and squeeze on the top of the hose 5. The power component enables the two rollers 4 to rotate synchronously. The synchronously rotating rollers 4 enable the hose 5 to rotate in the opposite direction. The laser cutting head 1 cuts the reversely rotating hose 5. The reversely rotating hose 5 enables the two limiting sleeves 9 to rotate. The rotation direction of the limiting sleeves 9 is the same as that of the rollers 4. The hose 5 to be cut is placed on the top of the two rollers 4. The two parallel rollers 4 limit the hose 5. The cylinder 10 is started. The output end of the cylinder 10 causes the upper frame 8 to move downward. The lowered upper frame 8 drives the two limiting sleeves 9 to move downward synchronously until the outer circumferential side surface of the limiting sleeve 9 fits with the outer circumferential side surface of the hose 5. At this time, the upper frame 8 uses the two limiting sleeves 9 to squeeze the top of the hose 5, and the bottom frame 3 uses the two rollers 4 to support the hose 5. The two rollers 4 and the two limiting sleeves 9 keep the hose 5 in a horizontal state to prevent the hose 5 from being bent or curled during rotation.

[0022] After the upper frame 8 cooperates with the bottom frame 3 to limit the hose 5, the lifting device moves the laser emitter downward, and the downward laser emitter makes the output end of the laser cutting head 1 close to the hose 5 until the bottom end of the laser cutting head 1 fits the outer circumferential surface of the hose 5. The power component makes the two rollers 4 rotate clockwise synchronously, and the clockwise rotating rollers 4 make the hose 5 rotate counterclockwise. The counterclockwise rotating hose 5 makes the two limiting sleeves 9 rotate clockwise, and the laser emitter is started. The laser emitted by the laser cutting head 1 counter-cuts the clockwise rotating hose 5, ensuring that the cut surface of the hose 5 is a smooth surface. The cut hose 5 falls off, which is convenient for collecting the cut hose 5.

[0023] After the hose 5 is cut, the output end of the cylinder 10 causes the upper frame 8 to move upward, and the upper frame 8 that moves upward drives the limiting sleeve 9 away from the hose 5. The lifting device causes the laser cutting head 1 to move away from the hose 5 and pushes the hose 5 to move to the left. After the hose 5 moves to a suitable position, the movement of the hose 5 is stopped, and the output end of the cylinder 10 causes the upper frame 8 to move downward, and the upper frame 8 that moves downward drives the limiting sleeve 9 close to the hose 5. The lifting device causes the laser cutting head 1 to approach the hose 5. At this time, the power component uses the roller 4 to rotate the hose 5, and the laser cutting head 1 continues to cut the rotating hose 5 to ensure the continuous cutting effect of the hose 5.

[0024] exist Figure 1 and Figure 2 In the embodiment, the power component includes a driving gear 11, a driven gear 12 is fixed to the right side of the roller 4 by a protruding rod 7, the driving gear 11 is at the bottom of the driven gear 12, the driving gear 11 and the driven gear 12 are matched with each other by a belt 13, the rotating driving gear 11 uses the belt 13 to make the two driven gears 12 rotate synchronously, and the driving gear 11 is connected to the output end of the motor 14 by a side transmission. The motor 14 is installed on the top surface of the movable plate 15, and a vertical rod 16 penetrating the movable plate 15 is fixed to the right side of the base frame 3, and a first spring 17 is sleeved on the surface of the vertical rod 16, the bottom end of the first spring 17 is connected to the top surface of the movable plate 15, and the top end of the first spring 17 is connected to the top end of the vertical rod 16, and the elastic force of the first spring 17 makes the driving gear 11 at the output end of the motor 14 pull the belt 13. When the roller 4 is in a limited state, after the belt 13 is sleeved on the surfaces of the two driven gears 12, the movable plate 15 is pulled upward, and the upward movable plate 15 moves up on the surfaces of the two vertical rods 16. The upward movable plate 15 cooperates with the first spring 17 on the surface of the vertical rod 16 to squeeze. At this time, the movable plate 15 drives the motor 14 and the driving gear 11 to move upward synchronously, and the upward driving gear 11 gradually moves away from the bottom plate 2. At this time, the belt 13 is correspondingly sleeved on the surface of the driving gear 11, and the tension applied to the movable plate 15 is released. The elastic force of the first spring 17 makes the movable plate 15 drive the motor 14 and the driving gear 11 to move downward synchronously, and the downward driving gear 11 cooperates with the two driven gears 12 to pull the belt 13, so that the belt 13 is in a straight state.

[0025] The motor 14 is started, and the driving gear 11 at the output end of the motor 14 drives the two driven gears 12 to rotate synchronously by means of the belt 13. The rotating driven gear 12 drives the roller 4 to rotate by means of the convex rod 7. At this time, the roller 4 can drive the hose 5 to rotate in the opposite direction.

[0026] exist Figure 3 and Figure 4In the figure, a limiting frame 18 is provided on the left side of the bottom frame 3, and two moving rings 19 are slidably engaged on the top of the limiting frame 18. A sliding groove corresponding to the moving ring 19 is provided on the top surface of the limiting frame 18. A screw 20 is passed through the surface of the limiting frame 18, and the moving ring 19 is spirally sleeved on the surface of the screw 20. An internal thread is provided on the inner ring surface of the moving ring 19, and the internal threads of the two moving rings 19 are in opposite directions. A rotating wheel 21 is fixed at both ends of the screw 20. When the rotating wheel 21 rotates the screw 20, the rotating screw 20 makes the two moving rings 19 approach or move away from each other. When the rotating wheel 21 is turned, the rotating wheel 21 drives the screw 20 to rotate inside the limiting frame 18. Since the limiting frame 18 uses the sliding groove to limit the two moving rings 19, the rotating screw 20 uses the internal thread to make the two moving rings 19 approach or move away from each other. At this time, the moving ring 19 slides inside the sliding groove, thereby adjusting the relative distance between the two moving rings 19.

[0027] A cross bar 22 is fixed to the top side of the moving ring 19, and a moving plate 23 is fixed to the right side of the cross bar 22. The two moving plates 23 correspond to the two rollers 4 one by one, and a slot 24 corresponding to the protruding rod 7 is arranged on the right side of the moving plate 23. The moving moving ring 19 uses the cross bar 22 to drive the moving plate 23 to move synchronously. When the two moving rings 19 are close to each other, the two moving plates 23 are close to each other. When the two moving rings 19 are far away from each other, the two moving plates 23 are far away from each other. The slot 24 is made to correspond to the left end of the protruding rod 7 by adjusting the moving plate 23.

[0028] exist Figure 2 and Figure 3 In the embodiment, the top surface of the bottom plate 2 is fixed with an inner rod 25 that penetrates the bottom frame 3, and the inner side edge of the movable plate 23 is provided with a groove corresponding to the inner rod 25. The right side of the inner rod 25 is sleeved with a second spring 26, one end of the second spring 26 is connected to the right side of the bottom frame 3, and the other end of the second spring 26 is connected to the right end of the inner rod 25. The surface of the inner rod 25 is spirally sleeved with a fastening sleeve 27, and the right side of the fastening sleeve 27 is in contact with the inner side of the side plate of the right side. When the roller 4 is not in a limited state, the elastic force of the first spring 17 causes the driving gear 11 at the output end of the motor 14 to pull the belt 13, and the belt 13 causes the two driven gears 12 to approach each other under the pulling action, and the moving driven gear 12 uses the convex rod 7 to move the roller 4, and at this time, the two rollers 4 approach each other until the outer circumferential sides of the two rollers 4 are in contact with each other.

[0029] The rotating wheel 21 is rotated, and the rotating wheel 21 uses the screw 20 to make the two moving rings 19 approach each other, and the moving moving ring 19 uses the cross bar 22 to move the moving plate 23 until the slot 24 on the right side of the moving plate 23 corresponds to the protruding rod 7 on the left end of the roller 4. The fastening sleeve 27 is screwed, and the fastening sleeve 27 moves leftward on the surface of the inner rod 25. At this time, the elastic force of the second spring 26 pushes the bottom frame 3 to move leftward, and the bottom frame 3 that moves leftward drives the two rollers 4 to move leftward synchronously. The roller 4 that moves leftward makes the protruding rod 7 inserted into the slot 24, completing the limitation of the roller 4.

[0030] The wheel 21 rotates in the opposite direction. The wheel 21 rotates in the opposite direction uses the screw 20 to move the two movable rings 19 away from each other. At this time, the movable ring 19 uses the movable plate 23 and the protruding rod 7 to make the rollers 4 move synchronously, so that the relative distance between the two rollers 4 can be adjusted in real time according to the outer diameter of the hose 5, so that hoses 5 with different outer diameters can be placed on the top of the base frame 3.

[0031] exist Figure 1 , Figure 3 and Figure 5 In the embodiment, two plug rods 28 are inserted through one side of the upper frame 8, two limiting sleeves 9 correspond to the two plug rods 28 one by one, the limiting sleeves 9 are rotatably sleeved on the surface of the plug rods 28, the ends of the two plug rods 28 are fixedly connected by a connecting plate, the surfaces of the cross bar 22 and the plug rods 28 are sleeved with rollers 29, the two cross bars 22 use the rollers 29 to limit the bottom of the hose 5, and the two plug rods 28 use the rollers 29 to limit the top of the hose 5. Two nuts 30 are spirally sleeved on the surfaces of the cross bar 22 and the plug rod 28, the roller 29 is between the two nuts 30, the side of the roller 29 is in contact with the inner side of the nut 30, and the surface of the roller 29 is coated with lubricating oil. When the hose 5 is pulled to move to the left, the left end of the hose 5 is gradually placed on the top of the two cross bars 22. At this time, the two cross bars 22 support the left end of the hose 5 with rollers 29. When the output end of the cylinder 10 makes the upper frame 8 move downward, the lowered upper frame 8 uses the plug rod 28 to drive the roller 29 to move downward synchronously until the two plug rods 28 squeeze the left end of the hose 5 with the rollers 29. Turn the nut 30. When the rotating nut 30 moves on the surface of the plug rod 28 and / or the cross bar 22, the two nuts 30 drive the rollers 29 to move synchronously. The position of the rollers 29 is adjusted in real time by the nut 30, so that the rollers 29 can be moved to the cutting position of the hose 5 conveniently. The hose 5 is in a horizontal state through the limitation of the four rollers 29. At this time, the lifting device makes the laser cutting head 1 move downward from between the two plug rods 28 until the bottom end of the laser cutting head 1 fits the outer circumference of the hose 5. The rotating hose 5 makes the roller 29 rotate, and the laser cutting head 1 cuts the rotating hose 5 to ensure that the cutting surface of the hose 5 is in a smooth state.

[0032] Working principle of the present invention: Reference Figures 1 to 5As shown, when the roller 4 is not in a limited state, after the belt 13 is sleeved on the surfaces of the two driven gears 12, the movable plate 15 is pulled upward, and the upward movable plate 15 moves upward on the surfaces of the two vertical rods 16. The upward movable plate 15 cooperates with the first spring 17 on the surface of the vertical rod 16 to squeeze. At this time, the movable plate 15 drives the motor 14 and the driving gear 11 to move upward synchronously, and the upward driving gear 11 gradually moves away from the bottom plate 2. At this time, the belt 13 is correspondingly sleeved on the surface of the driving gear 11, and the tension applied to the movable plate 15 is released. The elastic force of the first spring 17 makes the movable plate 15 drive the motor 14 and the driving gear 11 to move downward synchronously. The elastic force of the first spring 17 makes the driving gear 11 at the output end of the motor 14 pull the belt 13. Under the pulling action of the belt 13, the two driven gears 12 are approached to each other. The moving driven gear 12 uses the convex rod 7 to move the roller 4. At this time, the two rollers 4 are close to each other until the outer circumferential sides of the two rollers 4 fit each other.

[0033] The rotating wheel 21 is rotated, and the rotating wheel 21 uses the screw 20 to make the two moving rings 19 approach each other, and the moving moving ring 19 uses the cross bar 22 to move the moving plate 23 until the slot 24 on the right side of the moving plate 23 corresponds to the protruding rod 7 on the left end of the roller 4. The fastening sleeve 27 is screwed, and the fastening sleeve 27 moves leftward on the surface of the inner rod 25. At this time, the elastic force of the second spring 26 pushes the bottom frame 3 to move leftward, and the bottom frame 3 that moves leftward drives the two rollers 4 to move leftward synchronously. The roller 4 that moves leftward makes the protruding rod 7 inserted into the slot 24, completing the limitation of the roller 4.

[0034] The wheel 21 rotates in the opposite direction. The wheel 21 rotates in the opposite direction uses the screw 20 to move the two movable rings 19 away from each other. At this time, the movable ring 19 uses the movable plate 23 and the protruding rod 7 to make the rollers 4 move synchronously, so that the relative distance between the two rollers 4 can be adjusted in real time according to the outer diameter of the hose 5, so that hoses 5 with different outer diameters can be placed on the top of the base frame 3.

[0035] The hose 5 to be cut is placed on the top of the two rollers 4. The two parallel rollers 4 limit the hose 5. When the hose 5 is pulled to the left, the left end of the hose 5 is gradually placed on the top of the two cross bars 22. At this time, the two cross bars 22 support the left end of the hose 5 with rollers 29. The cylinder 10 is started, and the output end of the cylinder 10 causes the upper frame 8 to move downward. The lowered upper frame 8 drives the two limiting sleeves 9 to move downward synchronously until the outer circumferential side of the limiting sleeve 9 fits the outer circumferential side of the hose 5. At this time, the upper frame 8 uses the two limiting sleeves 9 to squeeze the top of the hose 5, and the bottom frame 3 uses the two rollers 4 to support the hose 5. The two rollers 4 and the two limiting sleeves 9 keep the hose 5 in a horizontal state to prevent the hose 5 from being bent or curled during the rotation process.

[0036] When the upper frame 8 moves downward at the output end of the cylinder 10, the lowered upper frame 8 uses the insertion rod 28 to drive the roller 29 to move downward synchronously until the two insertion rods 28 use the roller 29 to squeeze the left end of the hose 5. When the nut 30 is rotated and the rotating nut 30 moves on the surface of the insertion rod 28 and / or the cross bar 22, the two nuts 30 drive the rollers 29 to move synchronously, and the position of the rollers 29 is adjusted in real time by using the nut 30, so that the rollers 29 can be moved to the cutting position of the hose 5 conveniently, and the hose 5 is in a horizontal state through the limitation of the four rollers 29.

[0037] After the upper frame 8 cooperates with the bottom frame 3 to limit the hose 5, the lifting device moves the laser emitter downward, and the downward laser emitter makes the output end of the laser cutting head 1 close to the hose 5 until the bottom end of the laser cutting head 1 fits the outer circumferential surface of the hose 5. Start the motor 14, and the driving gear 11 at the output end of the motor 14 drives the two driven gears 12 to rotate synchronously using the belt 13. The rotating driven gear 12 uses the convex rod 7 to rotate the roller 4, and the roller 4 can drive the hose 5 to rotate in the opposite direction. That is, the power component makes the two rollers 4 rotate synchronously clockwise, and the clockwise rotating roller 4 makes the hose 5 rotate counterclockwise. The counterclockwise rotating hose 5 makes the two limiting sleeves 9 rotate clockwise, and the laser emitter is started. The laser emitted by the laser cutting head 1 counter-cuts the clockwise rotating hose 5, ensuring that the cut surface of the hose 5 is a smooth surface. The cut hose 5 falls off, which is convenient for collecting the cut hose 5.

[0038] After the hose 5 is cut, the output end of the cylinder 10 causes the upper frame 8 to move upward, and the upper frame 8 that moves upward drives the limiting sleeve 9 away from the hose 5. The lifting device causes the laser cutting head 1 to move away from the hose 5 and pushes the hose 5 to move to the left. After the hose 5 moves to a suitable position, the movement of the hose 5 is stopped, and the output end of the cylinder 10 causes the upper frame 8 to move downward, and the upper frame 8 that moves downward drives the limiting sleeve 9 close to the hose 5. The lifting device causes the laser cutting head 1 to approach the hose 5. At this time, the power component uses the roller 4 to rotate the hose 5, and the laser cutting head 1 continues to cut the rotating hose 5 to ensure the continuous cutting effect of the hose 5.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A laser pipe cutting machine for pipes used in tunnel construction, comprising a laser cutting head (1) and a laser transmitter located on the top of the laser cutting head (1), wherein the laser transmitter is mounted on the front side of a frame plate through a lifting device, and a bottom plate (2) is arranged at the bottom of the frame plate, characterized in that: A base frame (3) is arranged on the top of the bottom plate (2), two parallel rollers (4) are arranged on the top of the base frame (3), a hose (5) is placed on the top of the roller (4), the bottom end of the laser cutting head (1) corresponds to the outer circumferential surface of the hose (5), the base frame (3) comprises two parallel vertical side plates, and the roller (4) is located between the two side plates, a transverse groove (6) is arranged on the top of the side plate, and convex rods (7) are arranged at both ends of the roller (4), and the movable roller (4) slides inside the transverse groove (6) by means of the convex rods (7), a power component for controlling the rotation of the roller (4) is arranged on the right side of the base frame (3), and an upper frame (8) is arranged on the top of the hose (5) Two parallel limiting sleeves (9) are arranged at the bottom of the upper frame (8), and the top of the upper frame (8) is transmission-connected to the output end of the cylinder (10). The cylinder (10) is installed on the front side of the frame plate. When the cylinder (10) works, the output end of the cylinder (10) causes the upper frame (8) to drive the two limiting sleeves (9) to cooperate and squeeze on the top of the hose (5). The power component causes the two rollers (4) to rotate synchronously. The synchronously rotating rollers (4) cause the hose (5) to rotate in the opposite direction. The laser cutting head (1) cuts the hose (5) rotating in the opposite direction. The hose (5) rotating in the opposite direction causes the two limiting sleeves (9) to rotate. The rotation direction of the limiting sleeves (9) is the same as the rotation direction of the rollers (4).

2. The laser pipe cutting machine for pipes for tunnel construction according to claim 1, characterized in that: The power component comprises a driving gear (11), a driven gear (12) is fixed to the right side of the rotating roller (4) by means of a convex rod (7), the driving gear (11) is located at the bottom of the driven gear (12), the driving gear (11) and the driven gear (12) are matched with each other by means of a belt (13) on the outside, the rotating driving gear (11) uses the belt (13) to make the two driven gears (12) rotate synchronously, and the driving gear (11) is connected to the output end of the motor (14) by means of a side transmission.

3. The laser pipe cutting machine for pipes for tunnel construction according to claim 2, characterized in that: The motor (14) is mounted on the top surface of the movable plate (15); a vertical rod (16) penetrating the movable plate (15) is fixed to the right side of the base frame (3); a first spring (17) is sleeved on the surface of the vertical rod (16); the bottom end of the first spring (17) is connected to the top surface of the movable plate (15); the top end of the first spring (17) is connected to the top of the vertical rod (16); the elastic force of the first spring (17) causes the driving gear (11) at the output end of the motor (14) to pull the belt (13).

4. The laser pipe cutting machine for pipes for tunnel construction according to claim 1, characterized in that: A limiting frame (18) is provided on the left side of the bottom frame (3), and two moving rings (19) are slidably engaged on the top of the limiting frame (18). A sliding groove corresponding to the moving rings (19) is provided on the top surface of the limiting frame (18). A screw rod (20) passes through the surface of the limiting frame (18), and the moving ring (19) is spirally sleeved on the surface of the screw rod (20). An internal thread is provided on the inner ring surface of the moving ring (19), and the internal threads of the two moving rings (19) are in opposite directions. Rotating wheels (21) are fixed at both ends of the screw rod (20). When the rotating wheel (21) causes the screw rod (20) to rotate, the rotating screw rod (20) causes the two moving rings (19) to move closer to or farther from each other.

5. The laser pipe cutting machine for pipes for tunnel construction according to claim 4, characterized in that: A cross bar (22) is fixed to the top side of the movable ring (19), a movable plate (23) is fixed to the right side of the cross bar (22), the two movable plates (23) correspond to the two rollers (4) one by one, and a slot (24) corresponding to the convex rod (7) is provided on the right side of the movable plate (23).

6. The laser pipe cutting machine for pipes for tunnel construction according to claim 5, characterized in that: An inner rod (25) penetrating the bottom frame (3) is fixed to the top surface of the bottom plate (2); a groove corresponding to the inner rod (25) is provided on the inner side edge of the movable plate (23); a second spring (26) is sleeved on the right side of the inner rod (25); one end of the second spring (26) is connected to the right side surface of the bottom frame (3); the other end of the second spring (26) is connected to the right side end of the inner rod (25); a fastening sleeve (27) is spirally sleeved on the surface of the inner rod (25); and the right side surface of the fastening sleeve (27) is in contact with the inner side surface of the side plate of the right side.

7. The laser pipe cutting machine for pipes for tunnel construction according to claim 5, characterized in that: Two insertion rods (28) are inserted through one side of the upper frame (8), and two limiting sleeves (9) correspond to the two insertion rods (28) one by one. The limiting sleeves (9) are rotatably sleeved on the surface of the insertion rods (28), and the ends of the two insertion rods (28) are fixedly connected by a connecting plate. The cross bar (22) and the surface of the insertion rod (28) are sleeved with rollers (29), and the two cross bars (22) use the rollers (29) to limit the bottom of the hose (5), and the two insertion rods (28) use the rollers (29) to limit the top of the hose (5).

8. The laser pipe cutting machine for pipes for tunnel construction according to claim 7, characterized in that: The surface of the cross bar (22) and the surface of the insertion rod (28) are both spirally sleeved with two nuts (30), the roller (29) is located between the two nuts (30), the side surface of the roller (29) is in contact with the inner side surface of the nut (30), and the surface of the roller (29) is coated with lubricating oil.

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