A laser cutting and segmenting device for large-diameter thin-wall low-expansion alloy pipe blanking

Abstract

The present application relates to the technical fields of laser cutting, and discloses a laser cutting segmentation device for large-diameter thin-wall low-thermal-expansion alloy pipe blanking, which comprises a workbench, a vertical plate is arranged on the top of the workbench, an alloy pipe body is arranged on the vertical plate, a telescopic air cylinder is further arranged on the vertical plate, a laser cutting head is arranged on the output end of the telescopic air cylinder, a U-shaped frame is further arranged on the top of the workbench, and a material receiving unit is arranged on the workbench; the material receiving unit comprises a material receiving component, a material unloading component and a locking component which are arranged on the workbench. The laser cutting segmentation device for large-diameter thin-wall low-thermal-expansion alloy pipe blanking can accurately receive cutting dregs through the material receiving hopper and the material receiving box, and shake off the dregs during unloading, so as to avoid damaging the smoothness of the inner wall. This not only reduces fluid resistance and corrosion risk, but also reduces the subsequent cleaning difficulty, prolongs the service life of the pipeline, and ensures the stability of medium circulation in high-end fields such as aerospace.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and in particular to a laser cutting segmentation device for cutting large-diameter, thin-walled, low-thermal-expansion alloy tubes. Background Technology

[0002] In high-end manufacturing fields such as aerospace, precision instruments, and energy equipment, large-diameter, thin-walled, low-thermal-expansion alloy tubes have become core materials for critical structural components due to their extremely low coefficient of thermal expansion, excellent high-temperature stability, and lightweight characteristics. These tubes typically have a diameter exceeding 300mm but a wall thickness of less than 5mm, and their alloy composition contains elements such as nickel, iron, and cobalt. During processing, stress concentration can easily lead to deformation, placing stringent requirements on cutting precision. Traditional mechanical cutting methods suffer from rapid tool wear, numerous burrs on the cut, and a large heat-affected zone, making it difficult to meet the precision requirements of thin-walled structures. Laser cutting, with its high-energy-density beam, achieves non-contact processing, precisely controlling heat input and effectively reducing tube deformation. It also produces smooth cuts with dimensional accuracy up to ±0.05mm, significantly improving the efficiency of subsequent welding and assembly processes. However, existing laser cutting equipment still has the following drawbacks:

[0003] 1. The slag produced by laser cutting is mostly solidified metal fragments after high-temperature melting. When it adheres to the inner wall of thin-walled, low-thermal-expansion alloy pipes, it forms irregular protrusions or dot-like impurities. For pipelines transporting high-precision fluids, this slag can increase the flow resistance of the medium and even induce local eddies, causing pressure loss or unstable flow. At the same time, the slag adhesion points are prone to becoming accumulation points for contaminants. Long-term use may lead to the growth of microorganisms or chemical corrosion, damaging the corrosion resistance of the alloy pipe and shortening its service life.

[0004] 2. Due to the narrow inner space of large-diameter thin-walled pipes, residual slag may be squeezed and deformed during pipe welding and assembly, forming micro-cracks or stress concentration areas, reducing the structural strength of the alloy pipe. Furthermore, during non-destructive testing, slag can interfere with the detection signal, leading to misjudgments or missed detections, making it impossible to accurately assess the actual damage to the inner wall of the pipe, thus posing a potential threat to the safe operation of high-end equipment. Summary of the Invention

[0005] In view of the problems of existing technology, such as damaging the smoothness of the inner wall, increasing fluid resistance, causing corrosion, shortening the service life, increasing the difficulty of cleaning and inspection, potentially forming cracks, and creating safety hazards, a laser cutting segmentation device for cutting large-diameter thin-walled low thermal expansion alloy tubes is proposed.

[0006] This application provides a laser cutting and segmentation device for cutting large-diameter thin-walled low thermal expansion alloy pipes. Its purpose is to reduce the adhesion of slag on the inner wall of the pipe during laser cutting, avoid damaging the smoothness of the inner wall, hindering fluid flow and causing corrosion, reduce the difficulty of subsequent cleaning, prevent slag from interfering with detection or forming structural hazards, and ensure the performance of the pipeline and the safety of the equipment.

[0007] The technical solution of the present invention is as follows: a laser cutting and segmenting device for cutting large-diameter thin-walled low thermal expansion alloy tubes, including a worktable, a vertical plate on the top of the worktable, an alloy tube body on the vertical plate, a telescopic cylinder on the vertical plate, a laser cutting head at the output end of the telescopic cylinder, a U-shaped frame on the top of the worktable, and a receiving unit on the worktable.

[0008] The receiving unit includes a receiving component, an unloading component, and a locking component set on the workbench. The receiving component includes a receiving assembly and a tensioning assembly set on the U-shaped frame. The tensioning assembly is equipped with an unfolding assembly.

[0009] The receiving component receives the slag cut from the alloy tube body, the unloading component unloads the cut alloy tube body and the received slag, and the locking component is used to lock the unloading component to assist the unloading component in unloading.

[0010] The receiving assembly includes a receiving box mounted on a U-shaped frame, a receiving hopper on the top of the receiving box, a sealing plate at one end of the receiving box, and two first spheres symmetrically distributed on the sealing plate.

[0011] Furthermore, the tensioning assembly includes a fixed rod mounted on a U-shaped frame, a drive motor mounted on the fixed rod, a groove mounted on the fixed rod, a threaded rod mounted inside the groove, the output shaft of the drive motor being fixedly connected to the threaded rod, and a nut mounted on the threaded rod, the nut being slidably connected to the inner side of the groove.

[0012] Furthermore, the unfolding assembly includes a disc mounted on a fixed rod, a receiving box fixedly connected to the disc, multiple movable slots arranged in a circular array on the disc, a telescopic rod disposed inside the movable slot, a first spring disposed between the inner wall of the movable slot and the telescopic rod, a tension rope disposed at one end of the telescopic rod, the end of the tension rope away from the telescopic rod being fixedly connected to a nut, and a second sphere disposed at the other end of the telescopic rod, the second sphere being in rolling connection with the inner wall of the alloy tube body.

[0013] Furthermore, the unloading component includes a rotating assembly mounted on the workbench, a toggle assembly mounted on the U-shaped frame, and a snap-fit ​​assembly mounted on the workbench.

[0014] The rotating assembly includes a T-slot on the workbench, a T-block inside the T-slot, a second spring between the inner wall of the T-slot and the T-block, a connecting seat on the top of the T-block, a shaped rod on the connecting seat, a first connecting shaft on the U-shaped frame, a turntable on the first connecting shaft, and the end of the shaped rod away from the connecting seat is movably connected to the turntable.

[0015] Furthermore, the actuating assembly includes a fixed seat mounted on a U-shaped frame, a second connecting shaft mounted on the fixed seat, two symmetrically distributed sliding grooves on the U-shaped frame, a slider mounted inside the sliding groove, a third spring mounted between the inner wall of the sliding groove and the slider, a first connecting shaft passing through one of the sliders and fixedly connected to the fixed seat, a second connecting shaft rotatably connected to the other slider, a contact rod mounted on the fixed seat, and multiple arc-shaped blocks evenly arranged on the worktable, the contact rod abutting against the arc-shaped blocks, and the fixed rod passing through and connected to the fixed seat.

[0016] Furthermore, the snap-fit ​​assembly includes a snap-fit ​​groove on the workbench, a snap-fit ​​rod inside the snap-fit ​​groove, a snap-fit ​​spring between the inner wall of the snap-fit ​​groove and the snap-fit ​​rod, a snap-fit ​​slot on the T-block, the snap-fit ​​rod snapping into the inner side of the snap-fit ​​slot, and an inclined surface on the T-block.

[0017] Furthermore, the locking component includes a locking assembly mounted on the U-shaped frame, a transmission assembly mounted on the locking assembly, and a steering assembly mounted on the transmission assembly;

[0018] The locking assembly includes a locking rod mounted on a U-shaped frame, and a first locking groove and a second locking groove are provided on the second connecting shaft. The locking rod is inserted into the inner side of the first locking groove and the second locking groove respectively.

[0019] Furthermore, the transmission assembly includes a rotating shaft mounted on a U-shaped frame, a fixed shaft mounted on the rotating shaft, toothed plates mounted on the opposite ends of the locking rod and the fixed shaft, gears mounted on the U-shaped frame, the gears meshing with the two toothed plates respectively, a push rod mounted on the top of the toothed plates on the fixed shaft, the push rod slidingly connected to the U-shaped frame, a transmission spring mounted between the push rod and the U-shaped frame, the transmission spring being sleeved on the push rod, a rotating wedge block mounted at the bottom of the rotating shaft, and a stop rod mounted on the worktable, the stop rod slidingly connected to the inclined surface of the rotating wedge block.

[0020] Furthermore, the steering assembly includes a vertical groove on a rotating shaft, a spiral groove communicating with the vertical groove on the rotating shaft, a first rubber wedge block inside the spiral groove, a second rubber wedge block inside the vertical groove, a push rod on the U-shaped frame, the push rod being slidably connected to the inner sides of the vertical groove and the spiral groove respectively, and the push rod being slidably connected to the inclined surfaces of the first rubber wedge block and the second rubber wedge block respectively.

[0021] Furthermore, it also includes a clamping assembly, which includes a ring disposed on the upright plate, two electric actuators symmetrically distributed on the ring, and an arc-shaped clamping plate disposed at the output end of the electric actuators.

[0022] The beneficial effects of this invention are:

[0023] 1. The receiving hopper and receiving box of the receiving assembly can accurately receive cutting debris. The sealing plate, together with the first sphere, prevents leakage. During unloading, the debris is shaken off by vibration to avoid damaging the smoothness of the inner wall. This not only reduces fluid resistance and corrosion risk, but also reduces the difficulty of subsequent cleaning, extends the service life of the pipeline, and ensures the stability of media flow in high-end fields such as aerospace.

[0024] 2. By adjusting the nut position through the drive motor and threaded rod, and in conjunction with the telescopic rod of the unfolding assembly and the first spring, the second sphere tightly fits the inner wall of pipes of different diameters, providing stable support to prevent tilting and ensuring a smooth cut. Simultaneously, the clamping assembly can adjust the clamping and rotation of the pipe to meet multi-faceted cutting needs, expanding the applicability of the device.

[0025] 3. Through the coordinated operation of rotating and snap-fit ​​components, the receiving box automatically tilts and unloads material, while the vibration function of the actuating component accelerates material separation. The locking component precisely controls the unloading state, and during the reset process, each component automatically returns to its initial state, reducing manual intervention, shortening process time, and improving the overall production efficiency of large-diameter thin-walled alloy tube unloading. Attached Figure Description

[0026] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a second-view three-dimensional structural diagram of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the present invention without the alloy tube;

[0029] Figure 4 This is a schematic diagram of the material receiving assembly structure of the present invention;

[0030] Figure 5 This is a schematic diagram of the tensioning assembly structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the unfolding component structure of the present invention;

[0032] Figure 7 This is a schematic diagram of the receiving unit structure of the present invention;

[0033] Figure 8 This is a schematic diagram of the rotating component structure of the present invention;

[0034] Figure 9 This is a schematic diagram of the toggle assembly structure of the present invention;

[0035] Figure 10 This is a schematic diagram of the snap-fit ​​assembly structure of the present invention;

[0036] Figure 11 This is a schematic diagram of the locking assembly structure of the present invention;

[0037] Figure 12 This is a schematic diagram of the second connecting shaft structure of the present invention;

[0038] Figure 13 This is a schematic diagram of the steering component structure of the present invention;

[0039] Figure 14 This is a schematic diagram of the clamping assembly structure of the present invention.

[0040] In the picture:

[0041] 1. Workbench; 11. Vertical plate; 12. Alloy tube body; 13. Telescopic cylinder; 14. Laser cutting head; 15. U-shaped frame; 2. Receiving assembly; 21. Receiving box; 22. Receiving hopper; 23. Sealing plate; 24. First sphere; 3. Tensioning assembly; 31. Fixing rod; 32. Drive motor; 33. Threaded rod; 34. Nut; 4. Unfolding assembly; 41. Disc; 42. Telescopic rod; 43. First spring; 44. Tensioning rope; 45. Second sphere; 5. Rotating assembly; 51. T-block; 52. Second spring; 53. Connecting seat; 54. Irregular rod; 55. First connecting shaft; 56. Turntable; 6. Actuating assembly; 61. Fixing seat; 62. Second connecting shaft; 63. 64. Slider; 65. Third spring; 66. Abutment rod; 77. Arc block; 88. Snap-fit ​​assembly; 91. Snap-fit ​​groove; 92. Snap-fit ​​rod; 93. Snap-fit ​​spring; 74. Snap groove; 95. Locking assembly; 86. Locking rod; 87. First locking groove; 88. Second locking groove; 99. Transmission assembly; 91. Rotating shaft; 92. Tooth plate; 93. Gear; 94. Push rod; 95. Transmission spring; 96. Rotating wedge block; 97. Abutment rod; 10. Steering assembly; 101. Vertical groove; 102. Spiral groove; 103. First rubber wedge block; 104. Second rubber wedge block; 105. Push rod; 16. Clamping assembly; 161. Ring; 162. Electric push rod; 163. Arc clamping plate. Detailed Implementation

[0042] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Example 1, referring to Figures 1-7This invention provides a laser cutting and segmenting device for cutting large-diameter, thin-walled, low-thermal-expansion alloy tubes. The device includes a worktable 1, a vertical plate 11 fixedly connected to the top of the worktable 1, an alloy tube body 12 clamped onto the vertical plate 11, a telescopic cylinder 13 slidably connected to the vertical plate 11, a laser cutting head 14 fixedly connected to the output end of the telescopic cylinder 13, a U-shaped frame 15 slidably connected to the top of the worktable 1, and a receiving unit mounted on the worktable 1. The receiving unit includes a receiving component, an unloading component, and a locking component mounted on the worktable 1. The receiving component includes a U-shaped frame 15 mounted on the worktable 1. The frame 15 has a receiving component 2 and a tensioning component 3, and the tensioning component 3 is equipped with an unfolding component 4. The receiving component receives the slag cut off from the alloy tube body 12, and the unloading component unloads the cut alloy tube body 12 and the received slag. The locking component is used to lock the unloading component and assist the unloading component in unloading. The receiving component 2 includes a receiving box 21 rotatably connected to the U-shaped frame 15. A receiving hopper 22 is fixedly connected to the top of the receiving box 21. A sealing plate 23 is rotatably connected to one end of the receiving box 21. Two first spheres 24 are symmetrically distributed and fixedly connected on the sealing plate 23.

[0044] Specifically, the alloy tube body 12 is first securely fixed by the snap-fit ​​structure on the upright plate 11 to ensure that the tube does not shift during the cutting process. Then, according to the cutting requirements, the U-shaped frame 15 slides to a suitable position on the worktable 1, adjusting the relative position of the receiving assembly 2 and the alloy tube body 12. During the cutting stage, the telescopic cylinder 13 slides along the upright plate 11, driving the laser cutting head 14 to precisely move to the cutting starting point and initiate the laser cutting operation. Simultaneously, the receiving assembly 2 on the U-shaped frame 15 enters the working state, with the receiving hopper 22 aligned below the cutting position. The slag produced during cutting falls into the receiving hopper 22 under gravity and is then guided into the receiving box 21. At this time, the sealing plate 23 at one end of the receiving box 21 is closed, effectively preventing slag leakage during the receiving process. During the cutting process, the tensioning component 3 adjusts according to the diameter of the alloy tube body 12, and the unfolding component 4 clamps the alloy tube body 12 from the inside, preventing it from tilting downwards during cutting and causing an uneven cut. After cutting, the unloading component starts. The locking component works synchronously to fix the running path of the unloading component, ensuring a stable and orderly unloading process. Then, the receiving box 21 rotates, causing the sealing plate 23 to open, unloading the slag collected in the receiving box 21 together with the cut alloy tube body 12, achieving efficient separation of slag and pipe material, and reducing the adhesion of slag to the inner wall of the pipe from the source.

[0045] Reference Figure 5The tensioning assembly 3 includes a fixed rod 31 rotatably connected to the U-shaped frame 15, a drive motor 32 fixedly connected to the fixed rod 31, a groove also provided on the fixed rod 31, a threaded rod 33 rotatably connected to the inner side of the groove, the output shaft of the drive motor 32 is fixedly connected to the threaded rod 33, a nut 34 is threadedly connected to the threaded rod 33, and the nut 34 is slidably connected to the inner side of the groove.

[0046] Specifically, the drive motor 32 starts, causing the threaded rod 33 inside the groove of the fixed rod 31 to rotate. Because the nut 34 is slidably connected to the inner side of the groove, the rotation of the threaded rod 33 will cause the nut 34 to move along the groove. When the nut 34 moves, it will trigger the unfolding assembly 4 to adapt to alloy tube bodies 12 of different diameters.

[0047] Reference Figure 5 and Figure 6 The unfolding component 4 includes a disc 41 fixedly connected to a fixed rod 31, a receiving box 21 fixedly connected to the disc 41, and multiple movable slots arranged in a ring array on the disc 41. A telescopic rod 42 is slidably connected to the inner side of the movable slot, and a first spring 43 is fixedly connected between the inner wall of the movable slot and the telescopic rod 42. A tension rope 44 is fixedly connected to one end of the telescopic rod 42, and the end of the tension rope 44 away from the telescopic rod 42 is fixedly connected to a nut 34. A second ball 45 is rotatably connected to the other end of the telescopic rod 42, and the second ball 45 is rolledly connected to the inner wall of the alloy tube body 12.

[0048] Specifically, it operates in coordination with the tensioning assembly 3. When the nut 34 moves along the groove of the fixed rod 31, it pulls the tensioning rope 44 connected to it. The tensioning rope 44 drives the telescopic rod 42 to slide in the movable groove of the disc 41. At this time, the first spring 43 between the inner wall of the movable groove and the telescopic rod 42 will deform. When the nut 34 moves towards the drive motor 32, the tensioning rope 44 relaxes, the first spring 43 resets and pushes the telescopic rod 42 to extend outward, so that the second ball 45 is in close contact with the inner wall of the alloy tube body 12; when the nut 34 moves in the opposite direction, the tensioning rope 44 tightens, pulling the telescopic rod 42 back, adapting to smaller diameter tubes. Through such adjustment, the second ball 45 can always roll and fit against the inner wall of the alloy tube body 12 of different diameters, which not only ensures stable support for the tube, but also works with the receiving assembly 2 to more accurately receive cutting slag, improves the adaptability of the device to tubes of different specifications, and can also accurately extend into the interior of tubes of different diameters.

[0049] Reference Figure 8The unloading component includes a rotating assembly 5 mounted on the workbench 1, a toggle assembly 6 mounted on the U-shaped frame 15, and a snap-fit ​​assembly 7 mounted on the workbench 1. The rotating assembly 5 includes a T-shaped groove opened on the workbench 1, a T-shaped block 51 slidably connected to the inner side of the T-shaped groove, a second spring 52 fixedly connected between the inner wall of the T-shaped groove and the T-shaped block 51, a connecting seat 53 fixedly connected to the top of the T-shaped block 51, a shaped rod 54 slidably connected to the connecting seat 53, a first connecting shaft 55 movably connected to the U-shaped frame 15, a turntable 56 fixedly connected to the first connecting shaft 55, and the end of the shaped rod 54 away from the connecting seat 53 movably connected to the turntable 56.

[0050] Specifically, when the U-shaped frame 15 slides on the top of the workbench 1, it drives the rotating assembly 5 to move via the first connecting shaft 55. The T-shaped block 51 slides inside the T-slot, stretching the second spring 52. Under the action of the shaped rod 54, it drives the turntable 56 to rotate, which in turn drives the first connecting shaft 55 to rotate, causing the receiving assembly 2 to rotate and tilt, thus unloading the cut alloy tube body 12 and the slag in the receiving box 21. When the T-shaped block 51 slides inside the T-slot, it is engaged by the locking assembly 7. When the T-shaped block 51 returns to its original position, the locking assembly 7 holds the T-shaped block 51 in place. When the U-shaped frame 15 moves, under the action of the shaped rod 54, it pushes the turntable 56 to rotate in the opposite direction and return to its original position, causing the receiving assembly 2 to rotate to a horizontal state.

[0051] Example 2, refer to Figure 7 and Figure 9 This is the second embodiment of the present invention, which differs from the first embodiment in that: the actuating component 6 includes a fixed seat 61 rotatably connected to the U-shaped frame 15, a second connecting shaft 62 fixedly connected to the fixed seat 61, two sliding grooves symmetrically distributed on the U-shaped frame 15, a slider 63 slidably connected to the inner side of the sliding groove, a third spring 64 fixedly connected between the inner wall of the sliding groove and the slider 63, a first connecting shaft 55 passing through one of the sliders 63 and fixedly connected to the fixed seat 61, a second connecting shaft 62 rotatably connected to the other slider 63, an abutting rod 65 fixedly connected to the fixed seat 61, a plurality of arc-shaped blocks 66 evenly fixedly connected to the worktable 1, the abutting rod 65 abutting against the arc-shaped blocks 66, and a fixed rod 31 passing through the fixed seat 61.

[0052] Specifically, initially, the fixed seat 61 is horizontal, and the contact rod 65 is inclined. When the first connecting shaft 55 rotates, it drives the fixed seat 61 to rotate. Under the action of the second connecting shaft 62, the fixed seat 61 is inclined, making the contact rod 65 vertically downward. When the U-shaped frame 15 moves, it drives the fixed seat 61 to move, causing the contact rod 65 to abut against the arc-shaped block 66. Under the action of the arc-shaped block 66, the contact rod 65 moves upward, causing the fixed seat 61 to move upward. The inner side of the slider 63 slides upward, stretching the third spring 64. When the contact rod 65 is no longer in contact with the arc-shaped block 66, the third spring 64 will return to its original position, causing the slider 63 to slide downward inside the groove, causing the fixed seat 61 to move downward, which in turn causes the fixed seat 61 to vibrate up and down, causing the fixed rod 31 to vibrate up and down, causing the receiving assembly 2 to vibrate up and down, shaking off the slag in the receiving box 21, and simultaneously shaking off the cut alloy tube body 12.

[0053] Reference Figure 10 The snap-fit ​​assembly 7 includes a snap-fit ​​groove 71 on the workbench 1, a snap-fit ​​rod 72 slidably connected to the inside of the snap-fit ​​groove 71, a snap-fit ​​spring 73 fixedly connected between the inner wall of the snap-fit ​​groove 71 and the snap-fit ​​rod 72, a snap-fit ​​groove 74 is provided on the T-block 51, the snap-fit ​​rod 72 snaps into the inside of the snap-fit ​​groove 74, and an inclined surface is also provided on the T-block 51.

[0054] Specifically, when the T-block 51 slides inside the T-slot, the inclined surface causes the locking rod 72 to move into the locking groove 71, compressing the locking spring 73. When the locking groove 74 moves to the locking rod 72, the locking spring 73 returns to its original position, causing the locking rod 72 to move into the inner side of the locking groove 74, limiting the T-block 51. When the U-shaped frame 15 moves back to its original position, the turntable 56 rotates under the action of the irregular rod 54, causing the fixed seat 61 to rotate back to a horizontal position. When the U-shaped frame 15 continues to move, the locking rod 72 separates from the inner side of the locking groove 74, releasing the limitation on the T-block 51, allowing the T-block 51 to move back to its original position.

[0055] Reference Figures 11-13 The locking component includes a locking assembly 8 mounted on the U-shaped frame 15, a transmission assembly 9 mounted on the locking assembly 8, and a steering assembly 10 mounted on the transmission assembly 9. The locking assembly 8 includes a locking rod 81 slidably connected to the U-shaped frame 15. A first locking groove 82 and a second locking groove 83 are provided on the second connecting shaft 62. The locking rod 81 is inserted into the inner side of the first locking groove 82 and the second locking groove 83 respectively.

[0056] Specifically, initially, the locking rod 81 is inserted into the inner side of the second locking groove 83, preventing the second connecting shaft 62 from rotating and limiting the position of the fixed seat 61, thus keeping the receiving assembly 2 horizontal. Under the action of the transmission assembly 9, the locking rod 81 is pulled out from the inner side of the second locking groove 83 and then inserted into the first locking groove 82, again limiting the position of the second connecting shaft 62 and preventing it from rotating arbitrarily. The remaining structure is the same as that of Embodiment 1.

[0057] Example 3, referring to Figure 11 This is the third embodiment of the present invention, which differs from the second embodiment in that: the transmission assembly 9 includes a rotating shaft 91 rotatably connected to the U-shaped frame 15, a fixed shaft rotatably connected to the rotating shaft 91, a toothed plate 92 fixedly connected to the opposite end of the locking rod 81 and the fixed shaft, a gear 93 rotatably connected to the U-shaped frame 15, the gear 93 meshing with the two toothed plates 92 respectively, a push rod 94 fixedly connected to the top of the toothed plate 92 located on the fixed shaft, the push rod 94 slidably connected to the U-shaped frame 15, a transmission spring 95 fixedly connected between the push rod 94 and the U-shaped frame 15, the transmission spring 95 being sleeved on the push rod 94, a rotating wedge block 96 fixedly connected to the bottom of the rotating shaft 91, and a stop rod 97 fixedly connected to the worktable 1, the stop rod 97 slidably connected to the inclined surface of the rotating wedge block 96.

[0058] Specifically, when the U-shaped frame 15 moves, it drives the rotating wedge block 96 to move. Under the action of the abutment rod 97, the abutment rod 97 slides on the inclined surface of the rotating wedge block 96, causing the rotating wedge block 96 to move upward. This drives the rotating shaft 91 to move upward, and through the fixed shaft, it drives one of the toothed plates 92 to move upward. Under the action of the gear 93, it drives the other toothed plate 92 to move downward, causing the locking rod 81 to move downward and leave the first locking groove 82 or the second locking groove 83. The top rod 94 moves upward, stretching the transmission spring 95. When the rotating wedge block 96 separates from the abutment rod 97, the transmission spring 95 will return to its original position, driving the top rod 94 to move downward. Under the action of the toothed plate 92 and the gear 93, it drives the locking rod 81 to move upward and enter the first locking groove 82 or the second locking groove 83.

[0059] Reference Figure 13 The steering assembly 10 includes a vertical groove 101 formed on a rotating shaft 91. A spiral groove 102 communicating with the vertical groove 101 is also formed on the rotating shaft 91. A first rubber wedge block 103 is fixedly connected to the inner side of the spiral groove 102. A second rubber wedge block 104 is fixedly connected to the inner side of the vertical groove 101. A push rod 105 is fixedly connected to the U-shaped frame 15. The push rod 105 is slidably connected to the inner side of the vertical groove 101 and the spiral groove 102 respectively. The push rod 105 is slidably connected to the inclined surfaces of the first rubber wedge block 103 and the second rubber wedge block 104 respectively.

[0060] Specifically, initially, the push rod 105 is located at the top of the inner side of the vertical groove 101. When the rotating shaft 91 moves upward, the push rod 105 slides downward from the top of the inner side of the vertical groove 101, passes through the second rubber wedge block 104, and slides to the bottom of the inner side of the vertical groove 101. When the rotating shaft 91 moves downward, under the action of the second rubber wedge block 104, the push rod 105 smoothly enters the inner side of the spiral groove 102. Under the action of the spiral groove 102, the rotating shaft 91 rotates until the push rod 105 moves to the top of the spiral groove 102, passes through the first rubber wedge block 103, and smoothly enters the inner side of the vertical groove 101. This allows the rotating shaft 91 to drive the rotating wedge block 96 to rotate, ensuring that the inclined surface of the rotating wedge block 96 always faces the abutment rod 97, guaranteeing that the abutment rod 97 can always act on the rotating wedge block 96 when the U-shaped frame 15 moves.

[0061] Reference Figure 14 It also includes a clamping assembly 16, which includes a ring 161 rotatably connected to the upright plate 11. Two electric actuators 162 are symmetrically distributed and fixedly connected on the ring 161, and an arc-shaped clamping plate 163 is fixedly connected to the output end of the electric actuators 162.

[0062] Specifically, the electric actuator 162 is activated, causing the two arc-shaped clamping plates 163 to move and clamp the alloy tube body 12. The ring 161 drives the electric actuator 162 to rotate, which in turn drives the alloy tube body 12 to rotate, thereby performing laser cutting on different surfaces of the alloy tube body 12. The remaining structure is the same as in Embodiment 2.

[0063] Based on embodiments 1-3, the working principle of the present invention is as follows: First, the alloy tube body 12 is fixed by the clamping assembly 16 on the upright plate 11: the electric push rod 162 drives the arc-shaped clamping plate 163 to clamp the tube, and the ring 161 can drive the tube to rotate to adjust the cutting surface. The U-shaped frame 15 slides to a suitable position so that the receiving assembly 2 is aligned with the bottom of the cutting point. The telescopic cylinder 13 drives the laser cutting head 14 to move and cut, and the tensioning assembly 3 starts simultaneously: the drive motor 32 drives the threaded rod 33 to rotate, so that the nut 34 slides along the groove of the fixing rod 31, and the telescopic rod 42 of the unfolding assembly 4 is pulled by the tensioning rope 44. The telescopic rod 42 slides in the movable groove of the disc 41, and the telescopic amount is adjusted in conjunction with the first spring 43 so that the second ball 45 fits tightly against the inner wall of the tube, which not only supports the tube to prevent tilting, but also adapts to different tube diameters. The slag produced during cutting falls into the receiving hopper 22 and enters the receiving box 21. The unloading component is activated, and the U-shaped frame 15 moves, causing the T-shaped block 51 of the rotating component 5 to slide in the T-slot, stretching the second spring 52. The irregular rod 54 pushes the turntable 56 to rotate, causing the receiving box 21 to tilt. The locking rod 72 of the locking component 7, under the action of the locking spring 73, locks into the locking groove 74 of the T-shaped block 51, fixing the unloading angle. At the same time, the actuating component 6 works: the U-shaped frame 15 moves, causing the abutment rod 65 to abut against the arc-shaped block 66, driving the fixed seat 61 to move up and down. The slider 63 compresses the third spring 64 and then resets, causing the receiving component 2 to vibrate, shaking off the slag and the cut pipe. The locking component cooperates with the unloading. When the U-shaped frame 15 moves, the rotating wedge block 96 of the transmission component 9 contacts the abutment rod 97, driving the rotating shaft 91 to rise. Through the toothed plate 92 and the gear 93, the locking rod 81 disengages from the second locking groove 83. After unloading, the U-shaped frame 15 is reset, and each component returns to its initial state under the action of the springs, ready for the next cut.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A laser cutting and segmenting device for blanking large-diameter thin-walled low thermal expansion alloy tubes, comprising a worktable (1), a vertical plate (11) on the top of the worktable (1), an alloy tube body (12) on the vertical plate (11), a telescopic cylinder (13) on the vertical plate (11), a laser cutting head (14) at the output end of the telescopic cylinder (13), and a U-shaped frame (15) on the top of the worktable (1), characterized in that: It also includes a receiving unit set on the workbench (1); The receiving unit includes a receiving component, a discharging component and a locking component set on the workbench (1). The receiving component includes a receiving assembly (2) and a tensioning assembly (3) set on the U-shaped frame (15). The tensioning assembly (3) is provided with an unfolding assembly (4). The receiving component receives the slag cut off from the alloy tube body (12), the unloading component unloads the cut alloy tube body (12) and the received slag, and the locking component is used to lock the unloading component to assist the unloading component in unloading. The receiving assembly (2) includes a receiving box (21) set on a U-shaped frame (15), a receiving hopper (22) set on the top of the receiving box (21), a sealing plate (23) set at one end of the receiving box (21), and two first spheres (24) symmetrically distributed on the sealing plate (23). The tensioning assembly (3) includes a fixed rod (31) set on a U-shaped frame (15), a drive motor (32) set on the fixed rod (31), a groove set on the fixed rod (31), a threaded rod (33) set on the inner side of the groove, the output shaft of the drive motor (32) is fixedly connected to the threaded rod (33), a nut (34) is set on the threaded rod (33), and the nut (34) is slidably connected to the inner side of the groove. The unloading component includes a rotating assembly (5) set on the workbench (1), a toggle assembly (6) set on the U-shaped frame (15), and a snap-fit ​​assembly (7) set on the workbench (1). The rotating assembly (5) includes a T-slot on the workbench (1), a T-block (51) inside the T-slot, a second spring (52) between the inner wall of the T-slot and the T-block (51), a connecting seat (53) on the top of the T-block (51), a shaped rod (54) on the connecting seat (53), a first connecting shaft (55) on the U-shaped frame (15), a turntable (56) on the first connecting shaft (55), and the end of the shaped rod (54) away from the connecting seat (53) is movably connected to the turntable (56). The actuating assembly (6) includes a fixed seat (61) on a U-shaped frame (15), a second connecting shaft (62) on the fixed seat (61), two slides symmetrically distributed on the U-shaped frame (15), a slider (63) on the inner side of the slide, a third spring (64) between the inner wall of the slide and the slider (63), a first connecting shaft (55) passing through one of the sliders (63) and fixedly connected to the fixed seat (61), a second connecting shaft (62) rotatably connected to the other slider (63), a contact rod (65) on the fixed seat (61), a plurality of arc blocks (66) evenly arranged on the worktable (1), the contact rod (65) abutting against the arc blocks (66), and a fixed rod (31) passing through the fixed seat (61).

2. The laser cutting and segmenting device for blanking large-diameter thin-walled low-thermal-expansion alloy tubes according to claim 1, characterized in that: The unfolding assembly (4) includes a disc (41) set on a fixed rod (31), a receiving box (21) fixedly connected to the disc (41), a plurality of movable slots arranged in a ring array on the disc (41), a telescopic rod (42) set inside the movable slot, a first spring (43) set between the inner wall of the movable slot and the telescopic rod (42), a tension rope (44) set at one end of the telescopic rod (42), the end of the tension rope (44) away from the telescopic rod (42) fixedly connected to a nut (34), and a second ball (45) set at the other end of the telescopic rod (42), the second ball (45) being rolledly connected to the inner wall of the alloy tube body (12).

3. The laser cutting and segmenting device for blanking large-diameter thin-walled low-thermal-expansion alloy tubes according to claim 1, characterized in that: The snap-fit ​​assembly (7) includes a snap-fit ​​groove (71) provided on the workbench (1), a snap-fit ​​rod (72) provided inside the snap-fit ​​groove (71), a snap-fit ​​spring (73) provided between the inner wall of the snap-fit ​​groove (71) and the snap-fit ​​rod (72), a snap-fit ​​slot (74) provided on the T-block (51), the snap-fit ​​rod (72) snaps into the inner side of the slot (74), and an inclined surface is also provided on the T-block (51).

4. The laser cutting and segmenting device for blanking large-diameter thin-walled low-thermal-expansion alloy tubes according to claim 1, characterized in that: The locking component includes a locking assembly (8) disposed on the U-shaped frame (15), a transmission assembly (9) disposed on the locking assembly (8), and a steering assembly (10) disposed on the transmission assembly (9). The locking assembly (8) includes a locking rod (81) disposed on a U-shaped frame (15), and a first locking groove (82) and a second locking groove (83) disposed on a second connecting shaft (62). The locking rod (81) is inserted into the inner side of the first locking groove (82) and the second locking groove (83) respectively.

5. The laser cutting and segmenting device for blanking large-diameter thin-walled low-thermal-expansion alloy tubes according to claim 4, characterized in that: The transmission assembly (9) includes a rotating shaft (91) set on a U-shaped frame (15), a fixed shaft set on the rotating shaft (91), a toothed plate (92) set on the opposite end of the locking rod (81) and the fixed shaft, a gear (93) set on the U-shaped frame (15), the gear (93) meshing with the two toothed plates (92) respectively, a top rod (94) set on the top of the toothed plate (92) on the fixed shaft, the top rod (94) slidingly connected to the U-shaped frame (15), a transmission spring (95) set between the top rod (94) and the U-shaped frame (15), the transmission spring (95) sleeved on the top rod (94), a rotating wedge block (96) set at the bottom of the rotating shaft (91), and a stop rod (97) set on the worktable (1), the stop rod (97) slidingly connected to the inclined surface of the rotating wedge block (96).

6. The laser cutting and segmenting device for blanking large-diameter thin-walled low-thermal-expansion alloy tubes according to claim 5, characterized in that: The steering assembly (10) includes a vertical groove (101) on a rotating shaft (91), and a spiral groove (102) communicating with the vertical groove (101) on the rotating shaft (91). A first rubber wedge block (103) is provided inside the spiral groove (102), and a second rubber wedge block (104) is provided inside the vertical groove (101). A push rod (105) is provided on the U-shaped frame (15). The push rod (105) is slidably connected to the inner sides of the vertical groove (101) and the spiral groove (102) respectively, and the push rod (105) is slidably connected to the inclined surfaces of the first rubber wedge block (103) and the second rubber wedge block (104) respectively.

7. The laser cutting and segmenting device for blanking large-diameter thin-walled low-thermal-expansion alloy tubes according to claim 1, characterized in that: It also includes a clamping assembly (16), which includes a ring (161) disposed on the upright plate (11), and two electric actuators (162) are symmetrically distributed on the ring (161), and an arc-shaped clamping plate (163) is disposed at the output end of the electric actuators (162).

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