A laser cutting device for stainless steel tubes

Abstract

The application belongs to the technical field of laser cutting, and particularly relates to a laser cutting device for stainless steel pipes, which comprises a bottom plate, a first support frame fixedly connected to the upper surface of the bottom plate, a laser cutting assembly fixedly connected to the first support frame, and a fixing mechanism arranged on the bottom plate. The fixing mechanism comprises a rotating disc, a sleeve slidably connected to the inside of the rotating disc, a sliding groove arranged on the surface of the sleeve, a vertical section arranged on one side of the spiral section, a limiting rod slidably connected to the inside of the sliding groove, a fixing plate fixedly connected to one end of the limiting rod, limiting blocks symmetrically slidably connected to the inside of the fixing plate, a moving rod fixedly connected to the other end of the limiting rod, and the moving rod and the sleeve are slidably and rotatably connected to the inside of the sleeve. The device can fix the square pipes with different length-width differences by arranging the moving rod, and manual adjustment of four sets of clamps or replacement of clamps with different opening widths is not needed, thereby saving operation time and improving cutting efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of laser cutting, and particularly relates to a laser cutting device for stainless steel pipes. BACKGROUND

[0002] The stainless steel pipe has the characteristics of corrosion resistance, high temperature resistance, high strength and beautiful appearance, and is widely used in various fields of life. According to the change of the installation environment, the stainless steel pipe needs to be cut into different sizes. The use of laser cutting equipment can reduce the problems of deformation, burr and low efficiency of the stainless steel pipe in the cutting process.

[0003] A patent application with the publication number CN117532178B discloses a pipe laser cutting machine, which comprises a machine table, a laser cutting head, a material conveying frame and a material preparation frame arranged on the top of the machine table, the material preparation frame is used for placing the pipe to be processed, the material conveying frame is located between the material preparation frame and the laser cutting head, the top of the machine table is provided with a conveying driving element for driving the material conveying frame to approach the material preparation frame or the laser cutting head, and the top of the material conveying frame is provided with a clamping assembly.

[0004] The existing pipe laser cutting machine disclosed above is provided with a clamping assembly, the clamping assembly moves synchronously and approaches each other, so that the symmetrical point between the movable clamps is used as the clamping midpoint to clamp the pipe, and the efficiency is improved.

[0005] The existing pipe laser cutting machine disclosed above drives multiple clamping plates to move synchronously to clamp the circular pipe or the equilateral rectangular pipe. When the length and width of the rectangular pipe are inconsistent, the clamping plates need to be manually replaced or the four independent clamping plates need to be manually adjusted, which is low in efficiency and prone to errors, thereby causing the problem of low cutting efficiency of the stainless steel pipe.

[0006] Therefore, the application provides a laser cutting device for stainless steel pipes. SUMMARY

[0007] In order to make up for the deficiencies of the prior art, the problem of low cutting efficiency of the stainless steel pipe caused by the need to manually replace the clamping plates or manually adjust the four independent clamping plates when the length and width of the rectangular pipe are inconsistent is solved.

[0008] The technical scheme adopted by the present application to solve its technical problems is: the laser cutting device for stainless steel pipes, comprising a bottom plate, a first support frame is fixedly connected to the upper surface of the bottom plate, a laser cutting assembly is fixedly connected to the first support frame, a fixing mechanism is arranged on the bottom plate, the fixing mechanism comprises a rotating disc, a sleeve is slidably connected in the rotating disc, a sliding groove is arranged on the surface of the sleeve, the sliding groove comprises a spiral segment, a vertical segment is arranged on one side of the spiral segment, a limiting rod is slidably connected in the sliding groove, a fixed plate is fixedly connected to one end of the limiting rod, limiting blocks are symmetrically slidably connected in the fixed plate, a moving rod is fixedly connected to the other end of the limiting rod, the moving rod and the sleeve are slidably and rotatably connected in the sleeve, a limiting plate is fixedly connected in the rotating disc, and a limiting groove is arranged in the limiting plate.

[0009] Preferably, one side of the first support frame is provided with a second support frame, the second support frame and the upper surface of the bottom plate are fixedly connected, and the second support frame and the rotating disc are rotatably connected.

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

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

[0012] Preferably, the inner wall of the rotating disc is rotatably connected with a moving gear ring, and the moving gear ring and the moving gear are meshed with each other.

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

[0014] Preferably, a sliding block is slidably connected in the sleeve, a first spring is fixedly connected between the sliding block and the inner wall of the sleeve, and one end of the sliding block and one end of the moving rod are rotatably connected.

[0015] Preferably, a taper block is fixedly connected to one side of the limiting plate, and the limiting block is shaped as a right trapezoid.

[0016] Preferably, a sliding rod is fixedly connected in the fixed plate, the inner part of the limiting block and the surface of the sliding rod are slidably connected, and a second spring is fixedly connected between the limiting block and the fixed plate.

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

[0018] The beneficial effects of the present application are as follows:

[0019] 1. The laser cutting device for stainless steel pipes, when the square pipes with inconsistent length and width need to be fixed, the square pipes are conveyed between the rotating discs, then the rack drives the sleeve to move, the sleeve drives the moving rods to move synchronously, after the moving rods contact with the rectangular surface, the rack continues to drive the sleeve to move, so that the moving rods drive the limit rods to move in the spiral section of the sliding groove, then the moving rods drive the limit rods to rotate, the limit rods drive the limit blocks to rotate into the limit slots in the limit plates, so that the moving rods are limited, then the rack continues to drive the sleeve to move, the limit rods slide in the vertical section of the limit slots, the rest of the racks drive the corresponding moving rods to continue to move, so that the moving rods are fixed on four sides of the square pipes, the device can fix the square pipes with inconsistent length and width, without manually adjusting four sets of clamps or replacing clamps with different openings, the operation time is saved, the cutting efficiency is improved, and after the limit blocks enter the limit slots, the moving rods and the square pipes form rigid constraint, so that the displacement of the moving rods during cutting is avoided, the waste caused by loose clamping of the moving rods is avoided, and the cutting effect is improved.

[0020] 2. The laser cutting device for stainless steel pipes, when the square pipes are non-standard parts, the limit blocks are rotated to the taper blocks, when the inclined surfaces of the two limit blocks are at the center of the taper block, the two limit blocks are pressed away from each other through the taper block, so that the taper block is between the two limit blocks, the taper block can limit the limit blocks, when the inclined surface of the limit block is at the inclined surface of the taper block, the limit block is pressed by the inclined surface of the taper block, so that the limit block slides in the fixed plate and slides into the limit slot, and the limit operation on the moving rod is completed, the taper block of the device presses the limit block, so that the limit block is automatically separated and matched with the size of the square pipe, without presetting the gear position, the size of the non-standard square pipe can be adapted, the pipe material is not displaced during cutting of the non-standard square pipe, and the cutting effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below with reference to the drawings.

[0022] Figure 1 is a schematic view of the overall structure of the present application;

[0023] Figure 2 is a schematic view of the overall structure of the present application from another perspective;

[0024] Figure 3 is a sectional view of the internal structure of the rotating disc;

[0025] Figure 4 is the meshing state diagram of the mobile gear, mobile gear ring and rack of the application;

[0026] Figure 5 is the structural schematic diagram of the sleeve and the mobile rod of the application;

[0027] Figure 6 is the structural sectional view of the sleeve and the mobile rod of the application;

[0028] Figure 7 is the structural schematic diagram of the limiting rod and the limiting block of the application;

[0029] Figure 8 is the structural schematic diagram of the limiting plate of the application

[0030] Figure 9 is the structural exploded view of the sleeve, mobile rod and fixed plate of the application;

[0031] In the figure: 1, bottom plate; 2, first support frame; 21, laser cutting assembly; 3, second support frame; 31, motor; 32, rotating gear; 33, rotating gear ring; 4, rotating disc; 41, rack; 42, sleeve; 43, sliding block; 44, mobile rod; 441, limiting rod; 442, fixed plate; 443, sliding rod; 444, second spring; 445, limiting block; 446, friction ball; 45, first spring; 46, sliding groove; 461, spiral section; 462, vertical section; 47, limiting plate; 471, limiting groove; 472, tapered block; 48, rotating rod; 481, mobile gear; 482, worm gear; 49, worm; 410, mobile gear ring. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application is further described below in combination with specific embodiments.

[0033] Embodiment one: as Figures 1 to 9As shown, the laser cutting device for stainless steel pipe provided by the embodiment of the application comprises a bottom plate 1, the upper surface of the bottom plate 1 is fixedly connected with a first support frame 2, the first support frame 2 is fixedly connected with a laser cutting assembly 21, the laser cutting assembly 21 adopts the prior art, the bottom plate 1 is provided with a fixing mechanism, the fixing mechanism comprises a rotating disc 4, the inside of the rotating disc 4 is slidably connected with a sleeve 42, the surface of the sleeve 42 is provided with a sliding groove 46, the sliding groove 46 comprises a spiral section 461, one side of the spiral section 461 is provided with a vertical section 462, the inside of the sliding groove 46 is slidably connected with a limiting rod 441, one end of the limiting rod 441 is fixedly connected with a fixed plate 442, the inside of the fixed plate 442 is symmetrically slidably connected with a limiting block 445, the other end of the limiting rod 441 is fixedly connected with a moving rod 44, the inside of the moving rod 44 and the sleeve 42 is slidably and rotatably connected, the inside of the rotating disc 4 is fixedly connected with a limiting plate 47, the inside of the limiting plate 47 is provided with a limiting groove 471, one end of the moving rod 44 is rotatably connected with a friction ball 446, the friction ball 446 is made of elastic material.

[0034] Specifically, when the existing laser cutting device for stainless steel pipe is used, 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 of the rectangular pipe are inconsistent, it is necessary to separately adjust the clamping plates, manually replace the clamping plates or manually adjust four independent clamping plates, which is low in efficiency and prone to errors, thereby causing the problem of low cutting efficiency of the stainless steel pipe.

[0035] In order to solve the above technical problems, the device is used as follows: when the circular pipe and the equilateral rectangular pipe are clamped, the pipe is conveyed to the inside of the rotating disc 4 through the conveying device, then the sleeve 42 is driven to slide in the inside of the rotating disc 4, the sleeve 42 drives the moving rod 44 to slide in the inside of the rotating disc 4, the moving rod 44 drives the friction ball 446 to move, the friction ball 446 contacts the outer wall of the stainless steel pipe and limits the movement of the moving rod 44, 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, the limiting rod 441 slides in the spiral section 461 of the sliding groove 46, so that the limiting rod 441 rotates, the limiting rod 441 drives the limiting block 445 to rotate, the limiting block 445 rotates into the limiting groove 471 in the inside of the limiting plate 47, that is, the moving rod 44 is limited, at this time, the moving rod 44 can fix the circular pipe and the equilateral rectangular pipe;

[0036] When a square tube or an oval tube with inconsistent length and width is needed, the sleeve 42 drives the moving rod 44 to slide synchronously, the moving rod 44 is in contact with the long side of the square tube or the oval tube, and as the sleeve 42 continues to move, the moving rod 44 slides in the spiral section 461, so that the moving rod 44 drives the limiting rod 441 to rotate, 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 oval tube can be fixed, then the sleeve 42 continues to move synchronously, the sleeve 42 at the long side continues to slide, and the limiting rod 441 slides in the vertical section 462 of the sliding groove 46, then the moving rod 44 at the short side is in contact with the surface of the square tube and the oval tube, so that the moving rod 44 is extruded, and 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 into the limiting groove 471, at this time, the moving rod 44 can fix the surface of the square tube or the oval tube at the short side, that is, the fixing operation of the square tube or the oval tube with inconsistent length and width can be completed.

[0037] After the fixing is completed, the stainless steel tube is cut by opening the laser cutting assembly 21 and adjusting the position of the cutting head.

[0038] The device can fix the square tube with inconsistent length and width by setting the moving rod 44, without manually adjusting four sets of clamps or replacing different clamps with different openings, saving operation time and improving cutting efficiency. After the limiting block 445 enters the limiting groove 471, the moving rod 44 and the square tube form a rigid constraint, which can prevent the moving rod 44 from moving during cutting, avoid waste caused by loose clamping of the moving rod 44, and improve the cutting effect.

[0039] As shown in Figure 1 and Figure 2 The first support frame 2 is provided with a second support frame 3 on one side, the second support frame 3 is fixedly connected with the upper surface of the bottom plate 1, the second support frame 3 is rotatably connected with the rotating disc 4, the surface of the rotating disc 4 is fixedly connected with a rotating gear ring 33, one side of the second support frame 3 is fixedly connected with a motor 31, the output end of the motor 31 is fixedly connected with a rotating gear 32, and the rotating gear 32 and the rotating gear ring 33 are meshed with each other.

[0040] Specifically, when different surfaces of the stainless steel tube need to be cut, the motor 31 can be turned on to drive the rotating gear 32 to rotate, the rotating gear 32 and the rotating gear ring 33 are meshed, the rotating gear ring 33 drives the rotating disc 4 to rotate, the rotating disc 4 drives the moving rod 44 inside to rotate synchronously, the moving rod 44 drives the stainless steel tube clamped therebetween to rotate to the appropriate surface, and then the laser cutting assembly 21 is used to cut the stainless steel tube.

[0041] As shown in Figure 2 andFigure 4 As shown, the surface of the sleeve 42 is fixedly connected with a rack 41, the rack 41 and the inner wall of the rotating disc 4 are in sliding connection, the inner wall of the rotating disc 4 is rotatably connected with a rotating rod 48, the rotating rod 48 is fixedly connected with a moving gear 481, the moving gear 481 and the rack 41 are in meshing connection, the inner wall of the rotating disc 4 is rotatably connected with a moving gear ring 410, the moving gear ring 410 and the moving gear 481 are in meshing connection, one end of the rotating rod 48 is fixedly connected with a worm 49, one end of one of the rotating rod 48 is fixedly connected with a worm wheel 482, and the worm wheel 482 and the worm 49 are in meshing connection.

[0042] Specifically, when the sleeve 42 needs to be driven to slide, the worm 49 can be rotated, the worm 49 and the worm wheel 482 are in meshing connection, 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 gear ring 410 are in meshing connection, the moving gear ring 410 rotates and drives the remaining moving gears 481 to rotate synchronously, the moving gears 481 and the rack 41 are in meshing connection, the rack 41 drives the sleeve 42 to slide, the sleeve 42 can drive the moving rod 44 to slide synchronously, and the pipe can be fixedly clamped.

[0043] As shown in the figure, Figure 6 The inside of the sleeve 42 is slidably connected with a sliding block 43, the first spring 45 is fixedly connected between the sliding block 43 and the inner wall of the sleeve 42, and one end of the sliding block 43 is rotatably connected with the inside of the moving rod 44.

[0044] Specifically, when the moving rod 44 drives the limiting rod 441 to slide in the spiral section 461 of the sliding groove 46, the moving rod 44 rotates at one end of the sliding block 43, when the limiting rod 441 slides in the vertical section 462 of the sliding groove 46, the sliding block 43 slides in the inside of the sleeve 42 and presses the first spring 45, when the sleeve 42 resets, the first spring 45 drives the sliding block 43 to reset, and the sliding block 43 can drive the moving rod 44 to reset.

[0045] As shown in the figure, Figures 6 to 9 The limiting block 445 is shaped as a right trapezoid, the inside of the fixed plate 442 is fixedly connected with a sliding rod 443, the inside of the limiting block 445 and the surface of the sliding rod 443 are in sliding connection, and the second spring 444 is fixedly connected between the limiting block 445 and the fixed plate 442.

[0046] Specifically, when the length of the rectangular pipe with inconsistent lengths is a non-standard part, the limiting block 445 is difficult to move into the limiting groove 471, at this time the moving rod 44 is difficult to lock, resulting in displacement of the pipe during cutting, thereby causing the problem of reduced cutting accuracy.

[0047] In order to avoid the above problems, the device is used as follows: when clamping the rectangular pipe with non-standard parts and inconsistent length, the limiting block 445 is at the taper block 472 of the limiting plate 47, when the centers of the two limiting blocks 445 are at the center of the taper block 472, the limiting block 445 rotates and contacts the inclined surface of the taper block 472, so that the limiting block 445 slides on the sliding rod 443 inside the fixed plate 442, the limiting block 445 extrudes the second spring 444 while being on both sides of the taper block 472, at this time, the limiting block 445 extrudes the second spring 444 to move to the final position, so that the taper block 472 can limit the two limiting blocks 445, that is, the pipe with non-standard parts can be clamped and fixed, when the center of the limiting block 445 is at the inclined surface of the taper block 472, the limiting block 445 rotates and contacts the inclined surface of the taper block 472, so that the two moving blocks are extruded and synchronously slide into the limiting groove 471, that is, the limiting of the moving rod 44 is completed.

[0048] The taper block 472 of the device extrudes the limiting block 445, so that it is automatically separated and matched with the size of the square pipe, without pre-setting the gear position, the size of the non-standard square pipe can be adapted, and the pipe is not displaced during cutting, improving the cutting effect.

[0049] When clamping the circular pipe and the equilateral rectangular pipe, the pipe is conveyed to the inside of the rotating disc 4 through the conveying device, the worm 49 is rotated, the worm 49 and the worm gear 482 are meshed, the worm gear 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 gear ring 410 are meshed, the moving gear ring 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 in the inside of the rotating disc 4, the moving rod 44 drives the friction ball 446 to move, the friction ball 446 contacts the outer wall of the stainless steel pipe and limits the movement of the moving rod 44, then the sleeve 42 continues to move, the limiting rod 441 on the moving 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 sliding groove 46, so that the limiting rod 441 rotates, the limiting rod 441 drives the limiting block 445 to rotate, the limiting block 445 rotates into the limiting groove 471 inside the limiting plate 47, that is, the moving rod 44 is limited, at this time, the moving rod 44 can fix the circular pipe and the equilateral rectangular pipe;

[0050] When the long and wide inconsistent square tube or oval tube is needed, the sleeve 42 drives the moving rod 44 to slide synchronously, the moving rod 44 is in contact with the long side of the square tube or oval tube, and as the sleeve 42 continues to move, the moving rod 44 slides in the spiral section 461, so that the moving rod 44 drives the limiting rod 441 to rotate, 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 oval tube can be fixed, then the sleeve 42 continues to move synchronously, the sleeve 42 at the long side continues to slide, and the limiting rod 441 slides in the vertical section 462 of the sliding groove 46, then the moving rod 44 at the short side is in contact with the surface of the square tube and the oval tube, so that the moving rod 44 is extruded, and 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 into the limiting groove 471, at this time, the moving rod 44 can fix the surface of the square tube or oval tube at the short side, that is, the fixing operation of the square tube or oval tube with inconsistent long and wide dimensions can be completed;

[0051] When the non-standard rectangular pipe with inconsistent length is clamped, the limiting block 445 is at the taper block 472 of the limiting plate 47, when the centers of the two limiting blocks 445 are at the center of the taper block 472, the limiting block 445 rotates and is in contact with the inclined surface of the taper block 472, so that the limiting block 445 slides on the sliding rod 443 in the fixed plate 442, the limiting block 445 extrudes the second spring 444 while being on both sides of the taper block 472, at this time, the limiting block 445 extrudes the second spring 444 to move to the final position, so that the taper block 472 can limit the two limiting blocks 445, that is, the pipe of the non-standard part can be clamped and fixed, when the center of the limiting block 445 is at the inclined surface of the taper block 472, the limiting block 445 rotates and is in contact with the inclined surface of the taper block 472, so that the two moving blocks are extruded and synchronously slide into the limiting groove 471, that is, the limiting of the moving rod 44 can be completed;

[0052] After fixing, the laser cutting assembly 21 is opened, and the position of the cutting head is adjusted to cut the stainless steel pipe, when different surfaces of the stainless steel pipe need to be cut, the motor 31 can be opened, the motor 31 drives the rotating gear 32 to rotate, the rotating gear 32 is engaged with the rotating gear 33, so that the rotating gear 33 drives the rotating disc 4 to rotate, the rotating disc 4 drives the moving rod 44 inside to rotate synchronously, the moving rod 44 drives the stainless steel pipe clamped therebetween to rotate to the appropriate surface, and then the laser cutting assembly 21 is used to cut the stainless steel pipe.

[0053] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A laser cutting device for stainless steel pipes, characterized in that: The system includes a base plate (1), on the upper surface of which a first support frame (2) is fixedly connected. A laser cutting assembly (21) is fixedly connected to the first support frame (2). A fixing mechanism is provided on the base plate (1), including a turntable (4). A sleeve (42) is slidably connected inside the turntable (4). A groove (46) is provided on the surface of the sleeve (42). The groove (46) includes a spiral section (461). A vertical section (462) is provided on one side of the spiral section (461). The sliding groove (46) is internally connected to a limiting rod (441), one end of which is fixedly connected to a fixing plate (442). The fixing plate (442) is internally symmetrically connected to a limiting block (445). The other end of the limiting rod (441) is fixedly connected to a moving rod (44). The moving rod (44) and the sleeve (42) are internally connected to slide and rotate. The turntable (4) is internally fixedly connected to a limiting plate (47), and the limiting plate (47) is internally provided with a limiting groove (471). 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). A rotating rod (48) is rotatably connected to the inner wall of the turntable (4). A movable gear (481) is fixedly connected to the rotating rod (48). The movable gear (481) and the rack (41) mesh with each other. The inner wall of the turntable (4) is rotatably connected to a movable gear ring (410), and the movable gear ring (410) and the movable gear (481) mesh with each other; The sleeve (42) is slidably connected to a slider (43), and a first spring (45) is fixedly connected between the slider (43) and the inner wall of the sleeve (42). One end of the slider (43) is rotatably connected to one end of the moving rod (44). A cone block (472) is fixedly connected to one side of the limiting plate (47), and the shape of the limiting block (445) is set as a right trapezoid. The fixed plate (442) is internally fixedly connected to a slide rod (443), the inside of the limiting block (445) is slidably connected to the surface of the slide rod (443), and a second spring (444) is fixedly connected between the limiting block (445) and the fixed plate (442).

2. The laser cutting device for stainless steel pipes 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 base plate (1), and the second support frame (3) is rotatably connected to the turntable (4).

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

4. The laser cutting device for stainless steel pipes according to claim 3, characterized in that: One end of the rotating rod (48) is fixedly connected to a worm (49), and one end of the rotating rod (48) is fixedly connected to a worm wheel (482), the worm wheel (482) and the worm (49) meshing with each other.

5. The laser cutting device for stainless steel pipes according to claim 4, characterized in that: One end of the movable rod (44) is rotatably connected to a friction ball (446), which is made of an elastic material.

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