A conveying device for high-frequency welded pipe laser cutting

Abstract

The present invention relates to the technical field of welded pipe cutting, and specifically to a conveying device for high-frequency welded pipe laser cutting, comprising a base plate, an internal stabilizing mechanism, a limiting assembly and a loading and unloading assembly. The loading and unloading assembly is arranged on the left side of the upper end surface of the base plate, the limiting assembly is arranged on the right side of the upper end surface of the base plate, and the internal stabilizing mechanism is arranged above the base plate between the loading and unloading assembly and the limiting assembly. The present invention uses multiple internal support assemblies to synchronously support and fix the inner wall of the high-frequency welded pipe in multiple sections, and the support and fixation of the inner wall of the high-frequency welded pipe is performed at multiple positions. The positioning internal support of the high-frequency welded pipe is realized by cooperating with a positioning circular plate, an insertion rod and a positioning ring, which not only ensures that the length of the cut high-frequency welded pipe section is consistent, but also enables the support position to correspond one-to-one with the high-frequency welded pipe section to be cut, thereby greatly improving the stability of the high-frequency welded pipe and the cutting efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of welded pipe cutting, and particularly to a conveying device for laser cutting of high-frequency welded pipes. Background Art

[0002] High-frequency welded pipes are steel pipes formed by heating the edges of steel plates with high-frequency current and fusing them together. Laser fixed-length cutting of high-frequency welded pipes is an efficient and precise cutting technology, which is widely used in the processing industry of metal pipes. This technology uses a laser beam to precisely cut high-frequency welded pipes to meet the requirements of specific lengths.

[0003] The existing cutting device feeds and cuts the welded pipe intermittently, and can only cut one section of the welded pipe at a time, and cannot perform multi-section fixed-length cutting on the welded pipe at the same time, so multiple cutting operations are required, which affects the cutting efficiency; secondly, the existing structure for fixing the welded pipe only clamps and fixes the welded pipe, and does not support its inner wall and the cutting position stably, so the stability of the welded pipe during cutting cannot be fully guaranteed. Summary of the Invention

[0004] Technical problems to be solved: A conveying device for laser cutting of high-frequency welded pipes provided by the present invention can solve the problems pointed out in the above background art.

[0005] Technical solution: To achieve the above object, the present invention adopts the following technical solution. A conveying device for laser cutting of high-frequency welded pipes includes a bottom plate, an inner stabilizing mechanism, a limiting component, and a loading and unloading component. The loading and unloading component is arranged on the left side of the upper end surface of the bottom plate, the limiting component is arranged on the right side of the upper end surface of the bottom plate, and the inner stabilizing mechanism is arranged between the loading and unloading component and the limiting component above the bottom plate.

[0006] The limiting component includes a support seat, the support seat is installed on the upper end surface of the bottom plate, the upper end surface of the support seat is an inwardly concave arc structure, a support sleeve is installed on the upper end surface of the support seat, installation bars are symmetrically installed up and down at the left end of the support sleeve, and laser cutting heads are linearly installed on the opposite surfaces of the installation bars.

[0007] The inner stabilizing mechanism includes an arc plate. A circular groove is opened at a position on the left end surface of the support sleeve away from the laser cutting head. Arc plates are symmetrically installed up and down on the inner wall of the circular groove. The arc plates are slidably arranged in the circular groove. A U-shaped frame is arranged on the left side of the arc plate and is matched with it. A central axis is horizontally arranged in the middle of the U-shaped frame, and a plurality of inner support components corresponding to the laser cutting heads are linearly arranged on the central axis.

[0008] Furthermore, the loading and unloading component includes a supporting cylinder which is installed on the bottom plate. A rectangular plate is provided at the upper end of the supporting cylinder. On the upper end surface of the bottom plate located inside the supporting cylinder, a rotating motor is installed through a motor base. The output shaft of the rotating motor passes through the supporting cylinder and is connected to the lower end surface of the rectangular plate. A vertical plate is installed on the upper end surface of the rectangular plate, and a supporting rib is connected between the left end surface of the vertical plate and the upper end surface of the rectangular plate.

[0009] Furthermore, the supporting cylinder is arranged with an opening downward. A plurality of annular chutes with gradually increasing diameters are provided on the upper end surface of the supporting cylinder. At positions corresponding to the annular chutes on the lower end of the rectangular plate, balls are evenly arranged along the circumferential direction thereof, and the balls are in sliding cooperation with the annular chutes.

[0010] Furthermore, a rotating motor is installed through a motor base at a position near the rear end of the right end surface of the vertical plate. A driving gear is sleeved on the outer wall of the output shaft of the rotating motor. A driven gear meshing with the driving gear is arranged in front of the driving gear. A telescopic cylinder is installed through the vertical plate. The driven gear is fixedly sleeved on the outer wall of the fixed shaft of the telescopic cylinder. Linking blocks are symmetrically installed up and down at the right end of the driven gear, and one side end surface of the linking block away from the driven gear is connected to the left end surface of the C-shaped frame.

[0011] Furthermore, the upper and lower right ends of the C-shaped frame are both serrated structures, and the serrated positions of the upper and lower parts of the C-shaped frame are opposite in the front and rear directions. Tooth-shaped grooves are provided at the positions where the left part of the arc-shaped plate cooperates with the upper and lower parts of the corresponding C-shaped frame.

[0012] Furthermore, a through hole is provided at a position of the C-shaped frame corresponding to the telescopic cylinder. A central shaft passes through the through hole and is connected to the telescopic end of the telescopic cylinder through a coupling. A cavity is arranged inside the central shaft. An electric telescopic rod is installed on the left end surface of the cavity. A round rod is installed at the telescopic end of the electric telescopic rod, and the inner support components are all connected to the outer wall of the round rod.

[0013] Furthermore, a positioning circular plate is sleeved on the outer wall of the central shaft near the telescopic cylinder. Triangular ribs are evenly installed on the left end of the positioning circular plate, and a plurality of triangular ribs are jointly connected to the outer wall of the central shaft. Plug rods are also evenly installed on the left end surface of the positioning circular plate along its outer wall. Through holes are provided at positions of the C-shaped frame corresponding to the plug rods. Positioning rings are sleeved on the outer walls of the plug rods, and the diameter of the positioning ring is larger than the diameter of the through hole.

[0014] Furthermore, the inner support assembly includes a movable ring, the outer wall of the movable ring is a structure with multiple protrusions, the inner wall of the movable ring is fixedly sleeved on the outer wall of the round rod, a fixed ring is arranged on the right side of the movable ring, the fixed ring is sleeved and installed on the outer wall of the central shaft, and mounting grooves are provided at positions corresponding to the outer wall of the fixed ring and the protrusions, a linkage rod is installed in the mounting groove through a pin shaft, the side of the protrusion away from the round rod is connected to one end of the rotating rod through the pin shaft, the other end of the rotating rod is connected to the middle part of the linkage rod through the pin shaft, and the side of the linkage rod away from the fixed ring is installed with an auxiliary support arc plate through the pin shaft.

[0015] Furthermore, the inner support assembly also includes an L-shaped rod, and the L-shaped rod is installed at the position of the outer wall of the round rod corresponding to the protrusion on the movable ring, and the outer wall of the central axis and the position corresponding to the protrusion and the L-shaped rod are provided with a slide groove communicated with the cavity, and a trapezoidal block with an inclined surface facing right is installed on the right end of the L-shaped rod, and the outer wall of the central axis located on the right side of the trapezoidal block is sleeved with a matching disk, and the matching disk and the trapezoidal block are provided with rectangular through holes at the corresponding positions, and the outer wall of the matching disk and the rectangular through holes are provided with T-shaped holes communicated with the rectangular through holes at the corresponding positions, and a sliding rod is slidably installed at the lower part of the T-shaped hole through a restoring spring, and a main support arc plate is installed at the upper end of the sliding rod, and the lower end of the sliding rod is in an inclined surface shape that matches the trapezoidal block, and rubber sheets are provided on the supporting surfaces of the auxiliary support guard plate and the main support arc plate.

[0016] Beneficial effects:

[0017] 1. The inner wall of the high-frequency welded pipe is supported and fixed in multiple sections synchronously through multiple inner support components arranged in the inner stabilizing mechanism, and the inner wall of the high-frequency welded pipe is supported and fixed in multiple positions. The positioning circular plate, the insert rod and the positioning ring are matched to realize the positioning internal support of the high-frequency welded pipe, which not only ensures the consistency of the length of the cut high-frequency welded pipe section, but also enables the support position to correspond one by one with the high-frequency welded pipe section to be cut, greatly improving the stability of the high-frequency welded pipe and the cutting efficiency.

[0018] 2. The electric telescopic rod drives the round rod to move rightward in the cavity. The movement of the round rod drives the connected movable ring and L-shaped rod to move rightward at the same time. Thus, the movable ring, rotating rod and linkage rod cooperate to drive the auxiliary support arc plate to support and fix the inner wall of the high-frequency welded pipe. The L-shaped rod, trapezoidal block and sliding rod cooperate to drive the main support arc plate to support and fix the inner wall of the high-frequency welded pipe to be cut. The round rod is connected with multiple inner support components to realize multi-section fixed-length support and fixation of the inner wall of the high-frequency welded pipe, thereby realizing multi-section synchronous cutting of the high-frequency welded pipe and improving cutting efficiency.

[0019] 3. The telescopic cylinder drives the center axis and the inner support assembly into the high-frequency welded pipe, so that the positioning circular plate contacts the cutting opening of the high-frequency welded pipe and positions the inner support, so that the high-frequency welded pipe section after cutting corresponds to the inner support position one by one, ensuring the stability during cutting. Afterwards, when the high-frequency welded pipe is moved to the left by the telescopic cylinder for feeding, the insertion rod is inserted into the insertion hole and the positioning ring stops when it contacts the yoke, thereby limiting the cutting length of the high-frequency welded pipe and ensuring the cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view of the present invention.

[0021] Figure 2 For the present invention Figure 1 AA section view.

[0022] Figure 3 For the present invention Figure 2 B is an enlarged view of .

[0023] Figure 4 For the present invention Figure 1 CC section view.

[0024] Figure 5 For the present invention Figure 4 D magnified view.

[0025] Figure 6 For the present invention Figure 4 EE section view.

[0026] Figure 7 For the present invention Figure 2 FF section view.

[0027] Figure 8 For the present invention Figure 7 A magnified view of G.

[0028] In the figure: 1. Bottom plate; 2. Inner stabilizing mechanism; 21. Arc plate; 211. Tooth-shaped groove; 22. Annular groove; 23. C-shaped frame; 24. Central shaft; 241. Cavity; 242. Electric telescopic rod; 243. Round rod; 25. Inner support assembly; 251. Moving collar; 252. Fixed collar; 253. Linking rod; 254. Rotating rod; 255. Auxiliary support arc plate; 256. L-shaped rod; 257. Trapezoidal block; 258. Matching disc; 259. Rectangular through hole; 2510. Recovery spring; 2511. Slide bar; 2512. Main support arc plate; 26. Positioning circular plate; 261. Triangular rib; 262. Insert rod; 263. Positioning ring; 3. Limit assembly; 31. Support seat; 32. Support sleeve; 33. Installation strip; 34. Laser cutting head; 4. Loading and unloading assembly; 41. Support cylinder; 411. Annular slideway; 42. Rectangular plate; 421. Ball; 43. Rotating motor; 44. Vertical plate; 441. Rotary motor; 442. Driving gear; 443. Driven gear; 444. Telescopic cylinder; 445. Linking block; 45. Support rib. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figure 1 , the present invention provides a technical solution: a conveying device for laser cutting of high-frequency welded pipes, including a bottom plate 1, an inner stabilizing mechanism 2, a limit assembly 3 and a loading and unloading assembly 4. The loading and unloading assembly 4 is arranged on the left side of the upper end surface of the bottom plate 1, the limit assembly 3 is arranged on the right side of the upper end surface of the bottom plate 1, and the inner stabilizing mechanism 2 is arranged between the loading and unloading assembly 4 and the limit assembly 3 above the bottom plate 1. The high-frequency welded pipe is pre-supported and limited by the limit assembly 3 to facilitate transmission and positioning for cutting. Then, the inner wall of the high-frequency welded pipe is positioned and supported and fixed at multiple positions by the inner stabilizing mechanism 2. The inner stabilizing mechanism 2 is intermittently driven by the loading and unloading assembly 4 to expand and contract and rotate, so as to realize the loading of the high-frequency welded pipe and the unloading after cutting.

[0031] Please refer to Figure 2 , in this embodiment, the limit assembly 3 includes a support seat 31, the support seat 31 is installed on the upper end surface of the bottom plate 1, the upper end surface of the support seat 31 is an inwardly concave arc structure, a support sleeve 32 is installed on the upper end surface of the support seat 31, installation strips 33 are symmetrically installed up and down at the left end of the support sleeve 32, and laser cutting heads 34 are linearly installed on the opposite surfaces of the installation strips 33; the high-frequency welded pipe is placed through the support sleeve 32, and the high-frequency welded pipe is pre-supported by the support sleeve 32.

[0032] Please refer to Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 In this embodiment, the loading and unloading component 4 includes a support cylinder 41, the support cylinder 41 is installed on the bottom plate 1, a rectangular plate 42 is arranged at the upper end of the support cylinder 41, a rotating motor 43 is installed on the upper end surface of the bottom plate 1 inside the support cylinder 41 through a motor base, the output shaft of the rotating motor 43 passes through the support cylinder 41 and is connected to the lower end surface of the rectangular plate 42, a vertical plate 44 is installed on the upper end surface of the rectangular plate 42, and a support rib 45 is connected between the left end surface of the vertical plate 44 and the upper end surface of the rectangular plate 42; the support cylinder 41 is arranged with an opening downward, a plurality of annular chutes 411 with gradually increasing diameters are arranged on the upper end surface of the support cylinder 41, and a plurality of balls 421 are uniformly arranged along the circumferential direction at the positions corresponding to the annular chutes 411 at the lower end of the rectangular plate 42, and the balls 421 are slidably matched with the annular chutes 411; the support cylinder 41 can stably support the rectangular plate 42 to improve the stability of rotation, and by setting the sliding fit of the annular chute 411 and the balls 421, the friction can be reduced while supporting the rotation to ensure smooth rotation. A rotary motor 441 is installed on the right end surface of the vertical plate 44 near the rear end through a motor base, a driving gear 442 is sleeved on the outer wall of the output shaft of the rotary motor 441, a driven gear 443 meshing with the driving gear 442 is arranged in front of the driving gear 442, a telescopic cylinder 444 is installed through the vertical plate 44, the driven gear 443 is fixedly sleeved on the outer wall of the fixed shaft of the telescopic cylinder 444, and two linkage blocks 445 are symmetrically installed on the upper and lower sides of the right end of the driven gear 443, and one side end surface of the linkage block 445 away from the driven gear 443 is connected to the left end surface of the C-shaped frame 23.

[0033] During operation, when cutting, the rotary motor 441 is started to drive the driving gear 442 to rotate, the driven gear 443 rotates synchronously with the driving gear 442 in meshing, and since the C-shaped frame 23 is connected to the driven gear 443 through the linkage block 445, when the driven gear 443 rotates, the high-frequency welded pipe is driven to rotate through the C-shaped frame 23 to realize circumferential cutting of the high-frequency welded pipe; after cutting is completed, the rotating motor 43 is started to drive the rectangular plate 42 and the vertical plate 44 to rotate by a specified angle, so that the driving gear 442, the driven gear 443, the linkage block 445 and the telescopic cylinder 444 installed on the vertical plate 44 rotate synchronously by a specified angle, so that the high-frequency welded pipe fixed on the C-shaped frame 23 rotates to realize the unloading of the cut high-frequency welded pipe.

[0034] Please refer to Figure 2 、 Figure 3, in this embodiment, the inner stabilizing mechanism 2 includes an arc-shaped plate 21. An annular groove 22 is formed at a position on the left end face of the support sleeve 32 away from the laser cutting head 34. Arc-shaped plates 21 are symmetrically installed on the upper and lower inner walls of the annular groove 22. The arc-shaped plates 21 are slidably arranged in the annular groove 22. A U-shaped frame 23 that cooperates with the arc-shaped plates 21 is arranged on the left side of the arc-shaped plates 21. The upper and lower right ends of the U-shaped frame 23 are both serrated structures, and the serrated positions on the upper and lower parts of the U-shaped frame 23 are opposite in the front and rear directions. Tooth-shaped grooves 211 are formed at the positions where the left parts of the arc-shaped plates 21 cooperate with the upper and lower parts of the corresponding U-shaped frame 23. During operation, when the rotating motor 441 drives the U-shaped frame 23 to rotate forward, the serrated structure on the U-shaped frame 23 will cooperate with the tooth-shaped grooves 211 on the arc-shaped plates 21. Thus, when the U-shaped frame 23 rotates, it drives the arc-shaped plates 21 to move in the annular groove 22, improving the rotational stability of the U-shaped frame 23 and the central shaft 24. A central shaft 24 is horizontally arranged in the middle of the U-shaped frame 23. A through hole is formed at the position of the U-shaped frame 23 corresponding to the telescopic cylinder 444. The central shaft 24 passes through the through hole and is connected to the telescopic end of the telescopic cylinder 444 through a coupling. A positioning circular plate 26 is sleeved and installed on the outer wall of the central shaft 24 on the side close to the telescopic cylinder 444. Triangular ribs 261 are evenly installed on the left end of the positioning circular plate 26. A plurality of triangular ribs 261 are jointly connected to the outer wall of the central shaft 24. Plug rods 262 are also evenly installed on the left end face of the positioning circular plate 26 along its outer wall. Jack holes are formed at the positions of the U-shaped frame 23 corresponding to the plug rods 262. Positioning rings 263 are sleeved and installed on the outer walls of the plug rods 262. The diameter of the positioning rings 263 is larger than the diameter of the jack holes. A plurality of inner support assemblies 25 corresponding to the laser cutting head 34 are linearly arranged on the central shaft 24. During operation, when feeding is required, the telescopic cylinder 444 is activated to drive the central shaft 24 and the inner support assemblies 25 to move to the right and enter the high-frequency welded pipe, so that the positioning circular plate 26 contacts the cutting port of the high-frequency welded pipe to position the inner support position. Then, the inner support assemblies 25 support and fix the inner wall of the high-frequency welded pipe. After that, the telescopic cylinder 444 contracts to drive the high-frequency welded pipe to move to the left until the plug rods 262 are inserted into the jack holes and the positioning rings 263 abut against the U-shaped frame 23 and then stop. By the cooperation of the positioning circular plate 26 with the plug rods 262 and the positioning rings 263, the inner support position and the cutting length of the high-frequency welded pipe are limited, improving the cutting accuracy.

[0035] Please refer to Figure 3 , Figure 7 , Figure 8In this embodiment, a cavity 241 is provided inside the central shaft 24, an electric telescopic rod 242 is installed on the left end face of the cavity 241, a round rod 243 is installed on the telescopic end of the electric telescopic rod, and the inner support components 25 are connected to the outer wall of the round rod 243; the inner support components 25 include a movable ring 251, the outer wall of the movable ring 251 is a structure of multiple protrusions, the inner wall of the movable ring 251 is fixedly sleeved on the outer wall of the round rod 243, and a fixed ring 25 is provided on the right side of the movable ring 251 2. The fixed collar 252 is sleeved and installed on the outer wall of the central shaft 24. The outer wall of the fixed collar 252 and the positions corresponding to the protrusions are provided with installation grooves. A linkage rod 253 is installed in the installation groove through a pin. The side of the protrusion away from the round rod 243 is connected to one end of the rotating rod 254 through a pin. The other end of the rotating rod 254 is connected to the middle part of the linkage rod 253 through a pin. The side of the linkage rod 253 away from the fixed collar 252 is installed with an auxiliary support arc plate 255 through a pin. The inner support assembly 25 also includes an L-shaped rod 256. The outer wall of the round rod 243 is installed with an L-shaped rod 256 at a position corresponding to the protrusion on the movable collar 251. The outer wall of the central shaft 24 is provided with a slide groove communicating with the cavity 241 at a position corresponding to the protrusion and the L-shaped rod 256. The right end of the L-shaped rod 256 is installed with a trapezoidal block 257 inclined to the right. The outer wall of the central shaft 24 on the right side of the trapezoidal block 257 is provided with a matching disc 258. The matching disc 258 and the corresponding positions of the trapezoidal block 257 are A rectangular through hole 259 is opened, and a T-shaped hole communicating with the rectangular through hole 259 is opened at a position corresponding to the outer wall of the matching disc 258 and the rectangular through hole 259. A slide rod 2511 is slidably installed at the lower part of the T-shaped hole through a restoring spring 2510. A main arc support plate 2512 is installed at the upper end of the slide rod 2511. The lower end of the slide rod 2511 is an inclined surface shape matching the trapezoidal block 257. Rubber sheets are arranged on the supporting surfaces of the auxiliary support guard plate and the main arc support plate 2512, and the friction force against the high-frequency welded pipe is increased by the rubber sheets. During operation, when internal support is required, the electric telescopic rod 242 is extended to drive the round rod 243 to move rightward in the cavity 241. The movement of the round rod 243 simultaneously drives the movable ring 251 and the L-shaped rod 256 connected thereto to move rightward. The movable ring 251 moves rightward and drives the rotating rod 254 to change its angle. Since the linkage rod 253 cannot move its position, the rotating rod 254 will drive the linkage rod 253 to rotate its angle, thereby driving the auxiliary support arc plate 255 to approach the inner wall of the high-frequency welded pipe for support and fixation. The L-shaped rod 256 moves rightward and drives the trapezoidal block 257 to move into the rectangular through hole 259, so that the trapezoidal block 257 cooperates with the lower end of the slide rod 2511 to push the slide rod 2511 out of the T-shaped hole, so that the slide rod 2511 drives the main support arc plate 2512 to move out of the T-shaped hole to support and fix the inner wall of the high-frequency welded pipe at the position to be cut, thereby improving stability and ensuring the cutting effect.

[0036] During specific operation, the high-frequency welded pipe is inserted and placed in the support sleeve 32. The high-frequency welded pipe is pre-supported by the support sleeve 32. The telescopic cylinder 444 is activated to drive the central shaft 24 and the inner support assembly 25 to move rightward into the high-frequency welded pipe, so that the positioning circular plate 26 contacts the cutting opening of the high-frequency welded pipe to position the inner support position thereof. The electric telescopic rod 242 extends to drive the round rod 243 to move rightward in the cavity 241. When the round rod 243 moves, it drives the moving collar 251 and the L-shaped rod 256 connected thereto to also move rightward. The rightward movement of the moving collar 251 drives the rotating rod 254 to change its angle. Since the linkage rod 253 cannot move in position, the rotating rod 254 will drive the linkage rod 253 to rotate in angle, thereby driving the auxiliary support arc plate 255 to approach the inner wall of the high-frequency welded pipe for support and fixation. The rightward movement of the L-shaped rod 256 drives the trapezoidal block 257 to move into the rectangular through hole 259, so that the trapezoidal block 257 cooperates with the lower end of the sliding rod 2511 to push the sliding rod 2511 out of the T-shaped hole, so that the sliding rod 2511 drives the main support arc plate 2512 to move out of the T-shaped hole to support and fix the inner wall of the position to be cut of the high-frequency welded pipe. Then, the telescopic cylinder 444 contracts to drive the high-frequency welded pipe to move leftward until the insertion rod 262 is inserted into the insertion hole and the positioning ring 263 abuts against the C-shaped frame 23 and then stops. The positioning circular plate 26 cooperates with the insertion rod 262 and the positioning ring 263 to limit the inner support position and the cutting length of the high-frequency welded pipe to determine the cutting position. Next, the laser cutting head 34 is activated and at the same time the rotating motor 441 rotates forward to drive the driving gear 442 to rotate. The driven gear 443 rotates synchronously with the driving gear 442 in engagement. Since the C-shaped frame 23 is connected to the driven gear 443 through the linkage block 445, when the driven gear 443 rotates, it drives the high-frequency welded pipe on the central shaft 24 and the inner support assembly 25 to rotate through the C-shaped frame 23, realizing circumferential cutting of the high-frequency welded pipe. When the rotating motor 441 drives the C-shaped frame 23 to rotate forward, the serrated structure on the C-shaped frame 23 will cooperate with the tooth-shaped groove 211 on the arc-shaped plate 21. Thus, when the C-shaped frame 23 rotates, it drives the arc-shaped plate 21 to move in the annular groove 22, improving the stability of the rotation of the C-shaped frame 23 and the central shaft 24 and enhancing the cutting effect. After cutting is completed, the rotating motor 441 rotates backward by a specified angle to make the C-shaped frame 23 rotate to a horizontal setting and unlock it from the arc-shaped plate 21. Then, the rotating machine is activated to drive the rectangular plate 42 and the vertical plate 44 to rotate by a specified angle. The driving gear 442, the driven gear 443, the linkage block 445 and the telescopic cylinder 444 installed on the vertical plate 44 rotate synchronously by a specified angle, so that the high-frequency welded pipe fixed on the C-shaped frame 23 moves in angle, realizing the blanking of the cut high-frequency welded pipe.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveying device for high-frequency welded pipe laser cutting, comprising a bottom plate, an internal stabilizing mechanism, a limit assembly and a loading and unloading assembly, characterized in that: On the left side of the upper end face of the bottom plate, a loading and unloading component is arranged. On the right side of the upper end face of the bottom plate, a limiting component is arranged. Above the bottom plate, an internal stabilizing mechanism is arranged between the loading and unloading component and the limiting component. The limiting component includes a support seat, which is installed on the upper end face of the bottom plate. The upper end face of the support seat is an inward concave arc structure. A support sleeve is installed on the upper end face of the support seat. Installation strips are symmetrically installed up and down at the left end of the support sleeve. Laser cutting heads are linearly installed on the opposite faces of the installation strips. The internal stabilizing mechanism includes an arc plate. A circular groove is opened at a position on the left end face of the support sleeve away from the laser cutting head. Arc plates are symmetrically installed up and down on the inner wall of the circular groove. The arc plates are slidably arranged in the circular groove. A U-shaped frame that matches it is arranged on the left side of the arc plate. A central axis is horizontally arranged in the middle of the U-shaped frame. Multiple internal support components corresponding to the laser cutting heads are linearly arranged on the central axis. The loading and unloading component includes a support cylinder, which is installed on the bottom plate. A rectangular plate is arranged at the upper end of the support cylinder. On the upper end face of the bottom plate inside the support cylinder, a rotating motor is installed through a motor seat. The output shaft of the rotating motor passes through the support cylinder and is connected to the lower end face of the rectangular plate. A vertical plate is installed on the upper end face of the rectangular plate. The left end face of the vertical plate is connected to the upper end face of the rectangular plate through a support rib. A rotating motor is installed through a motor seat at a position near the rear end of the right end face of the vertical plate. A driving gear is sleeved on the outer wall of the output shaft of the rotating motor. A driven gear that meshes with it is arranged in front of the driving gear. A telescopic cylinder is installed through the vertical plate. The driven gear is fixedly sleeved on the outer wall of the fixed shaft of the telescopic cylinder. Linking blocks are symmetrically installed up and down at the right end of the driven gear. The end face of the linking block away from the driven gear is connected to the left end face of the U-shaped frame. A through hole is opened at a position on the U-shaped frame corresponding to the telescopic cylinder. The central axis passes through the through hole and is connected to the telescopic end of the telescopic cylinder through a coupling. The upper and lower right ends of the U-shaped frame are both serrated structures. The serrated positions of the upper and lower parts of the U-shaped frame are opposite front and back. Tooth-shaped grooves are opened at the positions where the left part of the arc plate cooperates with the upper and lower parts of the corresponding U-shaped frame. A positioning circular plate is sleeved on the outer wall of the central axis near the telescopic cylinder. Triangular ribs are evenly installed at the left end of the positioning circular plate. The multiple triangular ribs are jointly connected to the outer wall of the central axis. Plug rods are also evenly installed along the outer wall of the left end face of the positioning circular plate. Through holes are opened at positions on the U-shaped frame corresponding to the plug rods. Positioning rings are sleeved on the outer walls of the plug rods. The diameter of the positioning ring is larger than the diameter of the through hole.

2. A conveying device for high-frequency welded pipe laser cutting according to claim 1, characterized in that: The support cylinder is arranged with an opening downward. Multiple annular slides with gradually increasing diameters are opened on the upper end face of the support cylinder. At positions on the lower end of the rectangular plate corresponding to the annular slides, balls are evenly arranged along the circumferential direction. The balls cooperate with the annular slides to slide.

3. A conveying device for high-frequency welded pipe laser cutting according to claim 1, characterized in that: A cavity is arranged inside the central axis. An electric telescopic rod is installed on the left end face of the cavity. A round rod is installed at the telescopic end of the electric telescopic rod. The internal support components are all connected to the outer wall of the round rod.

4. A conveying device for high-frequency welded pipe laser cutting according to claim 3, characterized in that: The inner support assembly includes a movable ring, the outer wall of the movable ring is a structure with multiple protrusions, the inner wall of the movable ring is fixedly sleeved on the outer wall of the round rod, a fixed ring is arranged on the right side of the movable ring, the fixed ring is sleeved and installed on the outer wall of the central shaft, and mounting grooves are provided at positions corresponding to the outer wall of the fixed ring and the protrusions, a linkage rod is installed in the mounting groove through a pin shaft, the side of the protrusion away from the round rod is connected to one end of the rotating rod through the pin shaft, the other end of the rotating rod is connected to the middle part of the linkage rod through the pin shaft, and the side of the linkage rod away from the fixed ring is installed with an auxiliary support arc plate through the pin shaft.

5. A conveying device for high-frequency welded pipe laser cutting according to claim 4, characterized in that: The inner support assembly also includes an L-shaped rod, and the L-shaped rod is installed at the position of the outer wall of the round rod corresponding to the protrusion on the movable ring, and the outer wall of the central axis and the position corresponding to the protrusion and the L-shaped rod are provided with a slide groove communicating with the cavity, and a trapezoidal block set to the right with an inclined surface is installed on the right end of the L-shaped rod, and the outer wall of the central axis located on the right side of the trapezoidal block is sleeved with a matching disk, and the matching disk and the trapezoidal block are provided with rectangular through holes at the corresponding positions, and the outer wall of the matching disk and the rectangular through holes are provided with T-shaped holes communicating with the rectangular through holes at the corresponding positions, and a sliding rod is slidably installed at the lower part of the T-shaped hole through a restoring spring, and a main support arc plate is installed at the upper end of the sliding rod, and the lower end of the sliding rod is in an inclined shape matching the trapezoidal block, and rubber sheets are provided on the supporting surfaces of the auxiliary support guard plate and the main support arc plate.

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