Laser cutting device for stainless steel pipe

Abstract

The invention belongs to the technical field of laser cutting, and particularly relates to a stainless steel pipe laser cutting device which comprises a bottom plate, a first supporting frame is fixedly connected to the upper surface of the bottom plate, a laser cutting assembly is fixedly connected to the first supporting frame, a fixing mechanism is arranged on the bottom plate and comprises a rotating disc, and a sleeve is slidably connected to the interior of the rotating disc. A sliding groove is formed in the surface of the sleeve and comprises a spiral section, a vertical section is arranged on one side of the spiral section, a limiting rod is slidably connected into the sliding groove, a fixing plate is fixedly connected to one end of the limiting rod, limiting blocks are symmetrically slidably connected into the fixing plate, and a moving rod is fixedly connected to the other end of the limiting rod. According to the square tube cutting device, by arranging the moving rod, square tubes with different lengths and widths can be fixed, four sets of clamps do not need to be manually adjusted or clamps with different opening positions do not need to be manually replaced, the operation time is saved, and the cutting efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cutting, in particular to a laser cutting device for stainless steel pipes. Background Art

[0002] Stainless steel pipes have the characteristics of corrosion resistance, high temperature resistance, high strength and beautiful appearance. They are widely used in various fields of life. At the same time, according to changes in the installation environment, stainless steel pipes need to be cut into different sizes. By using laser cutting equipment to cut stainless steel pipes, the deformation, burrs, low efficiency and other problems of stainless steel pipes during the cutting process can be reduced.

[0003] A patent application with publication number CN117532178B discloses a pipe laser cutting machine, which includes a machine table, on the top of which are provided a laser cutting head, a material transfer rack and a material preparation rack. The material preparation rack is used to place the pipe to be processed, and the material transfer rack is located between the material preparation rack and the laser cutting head. The top of the machine table is provided with a transmission drive component for driving the material transfer rack close to the material preparation rack or the laser cutting head, and the top of the material transfer rack is provided with a clamping assembly.

[0004] The above-mentioned existing tube laser cutting machine is provided with clamping components, and the clamping components move synchronously and approach each other, so that the symmetrical point between the moving clamps can be used as the clamping midpoint to clamp the tube, thereby improving efficiency.

[0005] The above-mentioned existing pipe laser cutting machine clamps circular pipes or equilateral rectangular pipes by driving multiple clamps to move synchronously. When the length and width dimensions of the rectangular pipes are inconsistent, individual adjustments are required, and the clamps need to be manually replaced or four sets of independent clamps need to be manually adjusted. This is inefficient and prone to errors, resulting in a decrease in stainless steel pipe cutting efficiency.

[0006] To this end, the present invention provides a laser cutting device for stainless steel pipes. Summary of the Invention

[0007] In order to make up for the shortcomings of the existing technology and solve the problem raised in the background technology that when the length and width dimensions of the rectangular pipe are inconsistent, it is necessary to adjust the splints individually or manually replace the four sets of independent splints, which is inefficient and prone to errors, thereby reducing the efficiency of stainless steel pipe cutting.

[0008] The technical solution adopted by the present invention to solve its technical problems is: a laser cutting device for stainless steel pipes described in the present invention comprises a base plate, the upper surface of the base plate is fixedly connected to a first support frame, the first support frame is fixedly connected to a laser cutting assembly, a fixing mechanism is provided on the base plate, the fixing mechanism comprises a turntable, the interior of the turntable is slidably connected to a sleeve, the surface of the sleeve is provided with a slide groove, the slide groove comprises a spiral section, a vertical section is provided on one side of the spiral section, the interior of the slide groove is slidably connected to a limiting rod, one end of the limiting rod is fixedly connected to a fixed plate, the interior of the fixed plate is symmetrically slidably connected to a limiting block, the other end of the limiting rod is fixedly connected to a moving rod, the moving rod and the internal sliding and rotatable connection of the sleeve, the interior of the turntable is fixedly connected to the limiting plate, and the interior of the limiting plate is provided with a limiting groove.

[0009] Preferably, a second support frame is provided on one side of the first support frame, the second support frame is fixedly connected to the upper surface of the bottom plate, and the second support frame is rotatably connected to the turntable.

[0010] Preferably, a rotating ring gear is fixedly connected to the surface of the turntable, a motor is fixedly connected to one side of the second support frame, a rotating gear is fixedly connected to the output end of the motor, and the rotating gear and the rotating ring gear are meshed with each other.

[0011] Preferably, a rack is fixedly connected to the surface of the sleeve, the rack is slidably connected to the inner wall of the turntable, the inner wall of the turntable is rotatably connected to a rotating rod, a moving gear is fixedly connected to the rotating rod, and the moving gear and the rack are engaged with each other.

[0012] Preferably, the inner wall of the turntable is rotatably connected to a movable ring gear, and the movable ring gear and the movable gear are meshed with each other.

[0013] Preferably, one end of the rotating rod is fixedly connected to a worm, one end of one of the rotating rods is fixedly connected to a worm wheel, and the worm wheel and the worm are meshed with each other.

[0014] Preferably, a slider is slidably connected inside the sleeve, a first spring is fixedly connected between the slider and the inner wall of the sleeve, and one end of the slider is internally rotatably connected to one end of the moving rod.

[0015] Preferably, a cone block is fixedly connected to one side of the limiting plate, and the shape of the limiting block is set to be a right-angled trapezoid.

[0016] Preferably, a sliding rod is fixedly connected to the interior of the fixing plate, the interior of the limiting block is slidably connected to the surface of the sliding rod, and a second spring is fixedly connected between the limiting block and the fixing plate.

[0017] Preferably, one end of the movable rod is rotatably connected to a friction ball, and the friction ball is made of elastic material.

[0018] The beneficial effects of the present invention are as follows: 1. The laser cutting device for stainless steel pipes described in the present invention is provided with a limiting block, a limiting plate and a limiting groove. When a square pipe with inconsistent length and width needs to be fixed, the square pipe is transported between the turntables, and then the rack is driven to drive the sleeve to move, and the sleeve drives the moving rod to move synchronously. After the moving rod contacts the rectangular surface, the rack drives the sleeve to continue to move, so that the moving rod drives the spiral section of the limiting rod in the slide groove, and then the moving rod drives the limiting rod to rotate, and the limiting rod drives the limiting block to rotate. The limiting block rotates to the limiting groove inside the limiting plate, and the moving rod can be limited. Then the rack drives the sleeve The tube continues to move, the limit rod slides in the vertical section of the limit groove, and the other racks drive the corresponding moving rods to continue moving, so that the moving rods are fixed to the four sides of the square tube. By providing a moving rod, the device can fix square tubes with different lengths and widths. There is no need to manually adjust four sets of clamps or replace clamps with different openings, which saves operation time and improves cutting efficiency. After the limit block enters the limit groove, a rigid constraint is formed between the moving rod and the square tube, which can avoid displacement of the moving rod during the cutting process, avoid waste caused by loose clamping of the moving rod, and improve the cutting effect.

[0019] 2. The laser cutting device for stainless steel pipes described in the present invention is provided with a cone block and a limit block. When the square pipe is a non-standard part, the limit block rotates to the cone block. When the inclined surfaces of the two limit blocks are at the center of the cone block, the two limit blocks are squeezed away from each other by the cone block, so that the cone block is between the two limit blocks. The cone block can perform a limiting operation on the limit block. When the inclined surface of the limit block is at the inclined surface of the cone block, the limit block is squeezed by the inclined surface of the cone block, so that the limit block slides inside the fixed plate and slides into the limit groove, and completes the limiting operation of the moving rod. The inclined surface of the cone block of this device squeezes the limit block, so that it automatically separates and matches the size of the square pipe. It can adapt to the size of the non-standard square pipe without presetting the gear, ensuring that the non-standard square pipe has no displacement during the cutting process, thereby improving the cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the present invention from another perspective; Figure 3 is a cross-sectional view of the internal structure of the turntable of the present invention; Figure 4 1 is a diagram showing the meshing state of the mobile gear, the mobile ring gear and the rack of the present invention; Figure 5 It is a structural schematic diagram of the sleeve and the moving rod of the present invention; Figure 6 is a structural cross-sectional view of the sleeve and the moving rod of the present invention; Figure 7 It is a schematic structural diagram of the limiting rod and the limiting block of the present invention; Figure 8 This is a schematic structural diagram of the limiting plate of the present invention. Figure 9 This is an exploded view of the structure of the sleeve, movable rod and fixed plate of the present invention; In the figure: 1. base plate; 2. first support frame; 21. laser cutting assembly; 3. second support frame; 31. motor; 32. rotating gear; 33. rotating ring gear; 4. turntable; 41. rack; 42. sleeve; 43. slider; 44. moving rod; 441. limiting rod; 442. fixed plate; 443. sliding rod; 444. second spring; 445. limiting block; 446. friction ball; 45. first spring; 46. slide groove; 461. spiral section; 462. vertical section; 47. limiting plate; 471. limiting groove; 472. cone block; 48. rotating rod; 481. moving gear; 482. worm gear; 49. worm; 410. moving ring gear. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] Example 1: Figures 1 to 9 As shown, a laser cutting device for a stainless steel pipe according to an embodiment of the present invention comprises a base plate 1, a first support frame 2 is fixedly connected to the upper surface of the base plate 1, a laser cutting assembly 21 is fixedly connected to the first support frame 2, the laser cutting assembly 21 adopts the existing technology, a fixing mechanism is provided on the base plate 1, the fixing mechanism comprises a turntable 4, a sleeve 42 is slidably connected to the interior of the turntable 4, a slide groove 46 is provided on the surface of the sleeve 42, the slide groove 46 comprises a spiral section 461, a vertical section 462 is provided on one side of the spiral section 461, the The internal sliding connection of the slide groove 46 is to a limit rod 441, one end of the limit rod 441 is fixedly connected to a fixed plate 442, the internal symmetrical sliding connection of the fixed plate 442 is to a limit block 445, the other end of the limit rod 441 is fixedly connected to a moving rod 44, the moving rod 44 and the internal sliding and rotation connection of the sleeve 42, the internal fixed connection of the turntable 4 is to a limit plate 47, a limit groove 471 is provided inside the limit plate 47, one end of the moving rod 44 is rotatably connected to a friction ball 446, and the friction ball 446 is made of elastic material.

[0024] Specifically, when the existing laser cutting device for stainless steel pipes is in use, a plurality of clamping plates are driven to move synchronously to clamp the circular pipe or the equilateral rectangular pipe. When the length and width dimensions of the rectangular pipe are inconsistent, individual adjustments are required, and the clamping plates need to be manually replaced or four sets of independent clamping plates need to be manually adjusted. This is inefficient and prone to errors, resulting in a decrease in the efficiency of stainless steel pipe cutting.

[0025] In order to solve the above technical problems, the present device is used as follows: when clamping the circular pipe and the equilateral rectangular pipe, the pipe is conveyed to the inside of the turntable 4 through the conveying device, and then the sleeve 42 is driven to slide inside the turntable 4, and the sleeve 42 drives the moving rod 44 to slide inside the turntable 4, and the moving rod 44 drives the friction ball 446 to move, and the friction ball 446 contacts the outer wall of the stainless steel pipe and limits the moving rod 44, and then the sleeve 42 continues to move, so that the limiting rod 441 on the moving rod 44 slides in the limiting groove 471 on the surface of the sleeve 42, and the limiting rod 441 slides in the spiral section 461 of the slide groove 46, so that the limiting rod 441 rotates, and the limiting rod 441 drives the limiting block 445 to rotate, and the limiting block 445 rotates to the limiting groove 471 inside the limiting plate 47, and the moving rod 44 is limited. At this time, the moving rod 44 can fix the circular pipe and the equilateral rectangular pipe; When a square tube or an elliptical tube with inconsistent length and width is required, the sleeve 42 drives the moving rod 44 to slide synchronously, and the moving rod 44 contacts the long side of the square tube or the elliptical tube. As the sleeve 42 continues to move, the moving rod 44 slides in the spiral section 461, causing the moving rod 44 to drive the limiting rod 441 to rotate, and the limiting rod 441 drives the limiting block 445 to rotate, and the limiting block 445 rotates to the inside of the limiting groove 471. At this time, the long side of the square tube or the elliptical tube can be fixed, and then the sleeve 42 continues to move synchronously, and the long side is The sleeve 42 continues to slide, and the limiting rod 441 slides in the vertical section 462 in the slide groove 46. Then, the moving rod 44 at the short side contacts the surface of the square tube or the elliptical tube, so that the moving rod 44 is squeezed. The above operation is repeated, so that the moving rod 44 drives the limiting block 445 at the limiting rod 441 to rotate, and the limiting block 445 rotates to the limiting groove 471. At this time, the moving rod 44 can fix the surface of the square tube or the elliptical tube at the short side, and the fixing operation of the square tube or the elliptical tube with inconsistent length and width can be completed. After the fixing is completed, the stainless steel pipe is cut by opening the laser cutting assembly 21 and adjusting the position of the cutting head.

[0026] By providing a movable rod 44, this device can fix square tubes with different lengths and widths. There is no need to manually adjust four sets of clamps or replace clamps with different openings, which saves operation time and improves cutting efficiency. After the limit block 445 enters the limit groove 471, a rigid constraint is formed between the movable rod 44 and the square tube, which can prevent the movable rod 44 from being displaced during the cutting process, avoid waste caused by loose clamping of the movable rod 44, and improve the cutting effect.

[0027] like Figure 1 and Figure 2 As shown, a second support frame 3 is provided on one side of the first support frame 2, the second support frame 3 is fixedly connected to the upper surface of the base plate 1, the second support frame 3 is rotatably connected to the turntable 4, the surface of the turntable 4 is fixedly connected to a rotating ring gear 33, and one side of the second support frame 3 is fixedly connected to a motor 31, the output end of the motor 31 is fixedly connected to a rotating gear 32, and the rotating gear 32 and the rotating ring gear 33 are engaged with each other.

[0028] Specifically, when it is necessary to cut different surfaces of the stainless steel pipe, the motor 31 can be turned on, and the motor 31 drives the rotating gear 32 to rotate. The rotating gear 32 and the rotating ring gear 33 engage, so that the rotating ring gear 33 drives the turntable 4 to rotate, and the turntable 4 can drive the internal moving rod 44 to rotate synchronously. The moving rod 44 drives the stainless steel pipe clamped between it to rotate to the appropriate surface, and then the stainless steel pipe is cut by the laser cutting component 21.

[0029] like Figure 2 and Figure 4 As shown, the surface of the sleeve 42 is fixedly connected to a rack 41, and the rack 41 is slidably connected to the inner wall of the turntable 4. The inner wall of the turntable 4 is rotatably connected to a rotating rod 48, and a moving gear 481 is fixedly connected to the rotating rod 48, and the moving gear 481 and the rack 41 are engaged with each other. The inner wall of the turntable 4 is rotatably connected to a moving ring gear 410, and the moving ring gear 410 and the moving gear 481 are engaged with each other. One end of the rotating rod 48 is fixedly connected to a worm 49, and one end of one of the rotating rods 48 is fixedly connected to a worm wheel 482, and the worm wheel 482 and the worm 49 are engaged with each other.

[0030] Specifically, when it is necessary to drive the sleeve 42 to slide, the worm 49 can be rotated, and the worm 49 and the worm wheel 482 engage with each other, so that the worm wheel 482 drives the rotating rod 48 to rotate, and the rotating rod 48 drives the moving gear 481 to rotate, and the moving gear 481 engages with the moving ring gear 410. The moving ring gear 410 rotates and drives the remaining moving gears 481 to rotate synchronously, and the moving gear 481 engages with the rack 41. The rack 41 drives the sleeve 42 to slide, and the sleeve 42 can drive the moving rod 44 to slide synchronously, and the pipeline can be fixed and clamped.

[0031] like Figure 6 As shown, a slider 43 is slidably connected to the interior of the sleeve 42 , a first spring 45 is fixedly connected between the slider 43 and the inner wall of the sleeve 42 , and one end of the slider 43 is internally rotatably connected to one end of the moving rod 44 .

[0032] Specifically, when the moving rod 44 drives the limiting rod 441 to slide in the spiral section 461 of the slide groove 46, the moving rod 44 rotates at one end of the slider 43. When the limiting rod 441 slides in the vertical section 462 of the slide groove 46, the slider 43 slides inside the sleeve 42 and squeezes the first spring 45. When the sleeve 42 is reset, the first spring 45 drives the slider 43 to reset, and the slider 43 can drive the moving rod 44 to reset.

[0033] Example 2: Figures 6 to 9 As shown, compared with Example 1, another embodiment of the present invention is: a cone block 472 is fixedly connected to one side of the limit plate 47, the shape of the limit block 445 is set to a right-angled trapezoidal shape, the interior of the fixed plate 442 is fixedly connected to the slide rod 443, the interior of the limit block 445 and the surface of the slide rod 443 are slidably connected, and a second spring 444 is fixedly connected between the limit block 445 and the fixed plate 442.

[0034] Specifically, when the length of the rectangular pipe with inconsistent length is non-standard, the limit block 445 is difficult to move into the limit groove 471. At this time, the moving rod 44 is difficult to lock, resulting in displacement of the pipe during cutting, thereby causing a decrease in cutting accuracy.

[0035] In order to avoid the above problems, the present device is used as follows: when a non-standard rectangular pipe with inconsistent length is clamped, the limit block 445 is located at the cone block 472 of the limit plate 47. When the center of the two limit blocks 445 is at the center of the cone block 472, the limit block 445 rotates and contacts the inclined surface of the cone block 472, so that the limit block 445 slides on the sliding rod 443 inside the fixed plate 442. The limit block 445 squeezes the second spring 444 and is at both sides of the cone block 472. At this time, the limit block 445 squeezes the second spring 444 to move to the final position, so that the cone block 472 can be limited by the two limit blocks 445, and the non-standard pipe can be clamped and fixed. When the center of the limit block 445 is at the inclined surface of the cone block 472, the limit block 445 rotates and contacts the inclined surface of the cone block 472, so that the two moving blocks slide synchronously into the limit groove 471 due to the squeezing, thereby completing the limiting of the moving rod 44.

[0036] The tapered block 472 of the device squeezes the limit block 445 on the inclined surface, so that it automatically separates and matches the size of the square tube. It can adapt to the size of non-standard square tubes without presetting gears, ensuring that the non-standard square tubes are not displaced during the cutting process, thereby improving the cutting effect.

[0037] Working principle: when the circular pipe and the equilateral rectangular pipe are clamped, the pipe is transported to the inside of the turntable 4 through the transport device, the worm 49 is rotated, the worm 49 and the worm wheel 482 are meshed with each other, so that the worm wheel 482 drives the rotating rod 48 to rotate, the rotating rod 48 drives the moving gear 481 to rotate, the moving gear 481 and the moving ring gear 410 are meshed, the moving ring gear 410 rotates and drives the remaining moving gears 481 to rotate synchronously, the moving gear 481 and the rack 41 are meshed, the rack 41 drives the sleeve 42 to slide, the sleeve 42 drives the moving rod 44 to slide inside the turntable 4, and the moving rod 44 drives The dynamic friction ball 446 moves, and after the friction ball 446 contacts the outer wall of the stainless steel pipe, it limits the movable rod 44. Then the sleeve 42 continues to move, so that the limiting rod 441 on the movable rod 44 slides in the limiting groove 471 on the surface of the sleeve 42. The limiting rod 441 slides in the spiral section 461 of the slide groove 46, so that the limiting rod 441 rotates, and the limiting rod 441 drives the limiting block 445 to rotate. The limiting block 445 rotates to the limiting groove 471 inside the limiting plate 47, and the movable rod 44 is limited. At this time, the movable rod 44 can fix the circular pipe and the equilateral rectangular pipe; When a square tube or an elliptical tube with inconsistent length and width is required, the sleeve 42 drives the moving rod 44 to slide synchronously, and the moving rod 44 contacts the long side of the square tube or the elliptical tube. As the sleeve 42 continues to move, the moving rod 44 slides in the spiral section 461, causing the moving rod 44 to drive the limiting rod 441 to rotate, and the limiting rod 441 drives the limiting block 445 to rotate, and the limiting block 445 rotates to the inside of the limiting groove 471. At this time, the long side of the square tube or the elliptical tube can be fixed, and then the sleeve 42 continues to move synchronously, and the long side is The sleeve 42 continues to slide, and the limiting rod 441 slides in the vertical section 462 in the slide groove 46. Then, the moving rod 44 at the short side contacts the surface of the square tube or the elliptical tube, so that the moving rod 44 is squeezed. The above operation is repeated, so that the moving rod 44 drives the limiting block 445 at the limiting rod 441 to rotate, and the limiting block 445 rotates to the limiting groove 471. At this time, the moving rod 44 can fix the surface of the square tube or the elliptical tube at the short side, and the fixing operation of the square tube or the elliptical tube with inconsistent length and width can be completed. When the center of the limit block 445 is at the inclined surface of the cone block 472, the limit block 445 rotates and contacts the inclined surface of the cone block 472, so that the limit block 445 slides on the sliding rod 443 inside the fixed plate 442, and the limit block 445 squeezes the second spring 444 and is at both sides of the cone block 472. At this time, the limit block 445 squeezes the second spring 444 to move to the final position, so that the cone block 472 can be limited by the two limit blocks 445, and the non-standard pipe can be clamped and fixed. When the center of the limit block 445 is at the inclined surface of the cone block 472, the limit block 445 rotates and contacts the inclined surface of the cone block 472, so that the two moving blocks slide synchronously into the limiting groove 471 due to the squeezing, thereby completing the limiting of the moving rod 44. After the fixation is completed, the stainless steel pipe is cut by opening the laser cutting assembly 21 and adjusting the position of the cutting head. When different surfaces of the stainless steel pipe need to be cut, the motor 31 can be turned on, and the motor 31 drives the rotating gear 32 to rotate. The rotating gear 32 and the rotating ring gear 33 engage, so that the rotating ring gear 33 drives the turntable 4 to rotate, and the turntable 4 can drive the internal moving rod 44 to rotate synchronously. The moving rod 44 drives the stainless steel pipe clamped therebetween to rotate to the appropriate surface, and then the stainless steel pipe is cut by the laser cutting assembly 21.

[0038] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cutting device for stainless steel tubes, characterized by: The invention comprises a bottom plate (1), wherein the upper surface of the bottom plate (1) is fixedly connected to a first support frame (2), the first support frame (2) is fixedly connected to a laser cutting assembly (21), the bottom plate (1) is provided with a fixing mechanism, the fixing mechanism comprises a turntable (4), the interior of the turntable (4) is slidably connected to a sleeve (42), the surface of the sleeve (42) is provided with a slide groove (46), the slide groove (46) comprises a spiral section (461), a vertical section (462) is provided on one side of the spiral section (461), the The slide groove (46) is internally slidably connected to a limit rod (441), one end of the limit rod (441) is fixedly connected to a fixed plate (442), the fixed plate (442) is internally symmetrically slidably connected to a limit block (445), the other end of the limit rod (441) is fixedly connected to a moving rod (44), the moving rod (44) and the sleeve (42) are internally slidably and rotatably connected, the interior of the turntable (4) is fixedly connected to a limit plate (47), and a limit groove (471) is provided inside the limit plate (47).

2. The laser cutting device for stainless steel pipe according to claim 1, characterized in that: A second support frame (3) is provided on one side of the first support frame (2); the second support frame (3) is fixedly connected to the upper surface of the bottom plate (1); and the second support frame (3) is rotatably connected to the turntable (4).

3. The laser cutting device for stainless steel pipe according to claim 2, characterized in that: A rotating ring gear (33) is fixedly connected to the surface of the turntable (4), a motor (31) is fixedly connected to one side of the second support frame (3), and a rotating gear (32) is fixedly connected to the output end of the motor (31), and the rotating gear (32) and the rotating ring gear (33) are meshed with each other.

4. The laser cutting device for stainless steel pipe according to claim 3, characterized in that: A rack (41) is fixedly connected to the surface of the sleeve (42), the rack (41) is slidably connected to the inner wall of the turntable (4), the inner wall of the turntable (4) is rotatably connected to a rotating rod (48), a moving gear (481) is fixedly connected to the rotating rod (48), and the moving gear (481) and the rack (41) are meshed with each other.

5. The laser cutting device for stainless steel pipe according to claim 4, characterized in that: The inner wall of the rotating disk (4) is rotatably connected to a movable ring gear (410), and the movable ring gear (410) and the movable gear (481) are meshed with each other.

6. The laser cutting device for stainless steel pipe according to claim 5, characterized in that: One end of the rotating rod (48) is fixedly connected to a worm (49), and one end of one of the rotating rods (48) is fixedly connected to a worm wheel (482), and the worm wheel (482) and the worm (49) are meshed with each other.

7. The laser cutting device for stainless steel pipe according to claim 6, characterized in that: The sleeve (42) is internally slidably connected to a slider (43), a first spring (45) is fixedly connected between the slider (43) and the inner wall of the sleeve (42), and one end of the slider (43) is internally rotatably connected to one end of the moving rod (44).

8. The laser cutting device for stainless steel pipe according to claim 1, characterized in that: A cone block (472) is fixedly connected to one side of the limiting plate (47), and the limiting block (445) is shaped as a right-angled trapezoid.

9. The laser cutting device for stainless steel pipe according to claim 8, characterized in that: The interior of the fixed plate (442) is fixedly connected to a slide rod (443), the interior of the limit block (445) is slidably connected to the surface of the slide rod (443), and a second spring (444) is fixedly connected between the limit block (445) and the fixed plate (442).

10. The laser cutting device for stainless steel pipe according to claim 9, characterized in that: One end of the moving rod (44) is rotatably connected to a friction ball (446), and the friction ball (446) is made of elastic material.

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