A laser cutting device and process for alloy round bar

Abstract

This invention relates to the field of laser processing technology and discloses a laser cutting device for alloy round bars. The device includes a frame, a laser cutting head fixedly mounted on the outer wall of the top of the frame, a fixed plate fixedly mounted on the inner wall of the frame, and a positioning component fixedly mounted on the side wall of the fixed plate. A multi-stage buffer system is formed by elastic torsion rods and elastic connecting rods to progressively mitigate the large inertial impact generated by the rapid feeding of the round bar, addressing the problem of unstable feeding of heavy workpieces and ensuring the stability of continuous equipment operation. The use of elastic tube deformation and surface contact friction, replacing the traditional roller point contact clamping method, effectively counteracts the feeding inertia of the alloy round bar, preventing slippage and excessive cutting extension length during high-speed workpiece transport, thereby reducing the positioning and adjustment time of the laser cutting head and improving overall processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of laser processing technology, and in particular to a laser cutting device and process for alloy round bars. Background Technology

[0002] Alloy round bars are common basic workpieces used in industries such as machinery manufacturing and hardware processing. Laser cutting, as the mainstream process for precision machining of alloy round bars, places high demands on workpiece feeding stability, conveying accuracy, and the continuous operation capability of the equipment. Due to the large weight of the alloy round bars, significant inertia is easily generated during the feeding process. Therefore, the design of the feeding clamping, buffering, and limiting structures affects the overall performance and processing quality of the laser cutting equipment.

[0003] Currently, the feeding mechanism of traditional alloy round bar laser cutting equipment generally has design flaws. Most of them are not equipped with a buffer structure. The alloy round bar has a high self-weight, and a large inertial impact will be generated when it is fed rapidly. The existing structure is difficult to dissipate the impact load, which can easily cause the workpiece to shake during feeding and run unstably, making it difficult to ensure the continuous operation of the equipment for a long time.

[0004] Meanwhile, traditional equipment often uses a point-contact clamping and conveying method with rollers, resulting in a small frictional contact area between the workpiece and the rollers. Under conditions of high inertia, alloy round bars are prone to slippage during conveying and excessive extension length of the cutting section. After deviations occur, the position of the laser cutting head needs to be repeatedly adjusted for compensation, which increases the debugging time of the equipment and thus affects the overall processing efficiency. Summary of the Invention

[0005] In view of the problems of existing technology, such as the large inertia of alloy round bars making them prone to wobbling and instability, the point contact clamping being prone to slippage, and the cutting extension being prone to exceeding tolerance, a laser cutting device for alloy round bars is proposed.

[0006] Its purpose is to address the lack of buffer structure in traditional laser cutting equipment, eliminate the inertial impact generated by the rapid feeding of alloy round bars, reduce the drawbacks of traditional point contact clamping methods such as easy slippage and cutting size deviation, and reduce the process of repeated adjustment of laser cutting head.

[0007] The technical solution of the present invention is a laser cutting device for alloy round bars, including a frame, a laser cutting head fixedly disposed on the outer wall of the top of the frame, a fixed plate fixedly disposed on the inner wall of the frame, and a positioning component fixedly disposed on the side wall of the fixed plate. The positioning component includes a connecting plate fixedly mounted on a fixed plate, a support component fixedly mounted on the outer wall of the connecting plate, a positioning frame slidably mounted on the inner wall of the support component, a fixing component fixedly mounted on the inner wall of the support component, an adjusting component fixedly mounted on the outer wall of the support component, a movable component slidably mounted on the inner wall of the support component, and a clamping component fixedly mounted on the inner wall of the fixing component. The clamping component includes an extension rod fixedly disposed on the inner wall of the fixing component, a fixing post fixedly disposed on the outer wall of the middle part of the extension rod, an elastic torsion rod fixedly disposed on the inner wall of the fixing post, an anti-detachment block fixedly disposed on the top outer wall of the elastic torsion rod, a connecting ring symmetrically fixedly disposed on the outer wall of the elastic torsion rod, an elastic connecting rod fixedly disposed on the bottom inner wall of the connecting ring, a rotating tube rotatably disposed on the side wall of the fixing post, an anti-detachment groove opened on the inner side wall of the rotating tube, and a rotating structure fixedly disposed on the rotating tube.

[0008] Furthermore, the rotating structure includes an elastic tube fixedly disposed on the outer wall of the rotating tube and a friction groove formed on the outer wall of the elastic tube. The inner side wall of the elastic tube is rotatably connected to the outer wall of the fixed column, and the inner side wall of the rotating tube is slidably connected to the outer wall of the anti-detachment block through an anti-detachment groove.

[0009] Furthermore, the supporting component includes a supporting plate fixedly disposed on the outer wall of the connecting plate, a supporting plate fixedly disposed on the outer wall of the supporting plate, a movable groove formed in the inner wall of the supporting plate, and a side opening plate fixedly disposed on the outer wall of the supporting plate, wherein the inner wall of the side opening plate is slidably connected to the outer wall of the positioning frame.

[0010] Furthermore, the fixing component includes a fixing frame fixedly disposed on the inner wall of the support plate, a buffer structure fixedly disposed on the inner wall of the fixing frame, and a limiting structure slidably disposed on the outer wall of the fixing frame.

[0011] Furthermore, the buffer structure includes a fixing block fixedly disposed at the top of the inner wall of the fixing frame, a damping rod fixedly disposed at the bottom outer wall of the fixing block, a compression spring disposed outside the damping rod, and a limiting sleeve fixedly disposed at the bottom outer wall of the damping rod.

[0012] Furthermore, the limiting structure includes a connecting plate fixedly disposed on the outer wall of the limiting sleeve, an L-shaped block fixedly disposed on the top outer wall of the connecting plate, and a limiting post fixedly disposed on the inner wall of the connecting plate. The outer wall of the L-shaped block is slidably connected to the outer wall of the fixing frame.

[0013] Furthermore, the adjustment component includes a servo motor fixedly mounted on the outer wall of the support plate, a guide rail fixedly mounted on the outer wall of the servo motor, an internally threaded plate slidably mounted on the outer wall of the guide rail, a push column fixedly mounted on the outer wall of the internally threaded plate, and a tripod slidably mounted on the outer wall of the guide rail. The output end of the servo motor is threadedly connected to the inner wall of the internally threaded plate.

[0014] Furthermore, the movable component includes a U-shaped block slidably disposed on the inner wall of the support plate, an inclined groove formed on the outer wall of the U-shaped block, a gripper fixedly disposed on the bottom outer wall of the U-shaped block, a telescopic rod fixedly disposed on the top outer wall of the U-shaped block, and a return spring disposed on the outside of the telescopic rod. The top outer wall of the return spring and the top outer wall of the telescopic rod are both fixedly connected to the outer wall of the fixed frame.

[0015] Another objective of this invention is to provide a laser cutting process for alloy round bars, the purpose of which is to: coordinate with the equipment's buffer and stabilizing structure and limit and avoidance mechanism to standardize the entire process of alloy round bar feeding, stabilizing, cutting, and resetting, reduce workpiece slippage and shaking problems, thereby adapting the processing operation to continuous batch cutting production of workpieces.

[0016] To achieve the above objectives, the present invention provides the following technical solution: a laser cutting process for alloy round bars, comprising the following steps: S1. Workpiece insertion and positioning: The alloy round bar to be processed is inserted into the fixed plate and connecting plate from the back side of the frame. The positioning frame provides lateral auxiliary positioning of the workpiece to complete the initial positioning. S2, Limiting mechanism avoidance: Start the servo motor to drive the internal thread plate to slide along the guide rail, push the tripod to lift the U-shaped block, and release the limit lock of the gripper; S3. Stable workpiece feeding: Push the alloy round bar forward, and after the workpiece contacts the elastic tube, it deforms and fits the workpiece. S4. Laser cutting operation: The alloy round bar is stably conveyed to the processing station, and the workpiece is laser cut using the laser cutting head on the top of the frame; S5. Reset and Continuous Processing: After a single-segment cutting is completed, each mechanism is reset in the reverse direction, and the above process is repeated to realize the batch continuous cutting production of alloy round bars.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. By relying on the elastic torsion bar and elastic connecting bar to form a multi-stage buffer system, the large inertial impact generated by the rapid feeding of the round bar can be gradually eliminated, which can solve the problem of unstable feeding of heavy workpieces and thus ensure the stability of continuous operation of the equipment.

[0018] 2. The use of elastic tube deformation and surface contact friction to replace the traditional roller point contact clamping method can effectively counteract the feeding inertia of the alloy round bar, prevent the workpiece from slipping during high-speed transport and the cutting extension length from exceeding the tolerance, thereby reducing the positioning and adjustment time of the laser cutting head and improving the overall processing efficiency.

[0019] 3. The deformed elastic tube can wrap around the outer wall of the alloy round bar, restricting the radial deflection and sway of the workpiece, and helping to improve the laser cutting accuracy. At the same time, the structure integrates rigid limiting and flexible buffering functions, which can adapt to the working conditions of different feed speeds of the round bar, making it more versatile.

[0020] 4. With the coordinated operation of the adjusting and moving parts, the clamps can be locked and automatically avoid obstacles quickly, adapting to workpiece loading and conveying conditions. At the same time, the buffer and limiting structures take into account both rigid load-bearing and flexible buffering, and the positioning frame can achieve auxiliary clamping of workpieces on the left and right sides, further enhancing the overall operational reliability of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a partial structural diagram of the frame of the present invention; Figure 3 This is a schematic diagram of the overall structure of the fixed disk of the present invention; Figure 4 This is a partial structural diagram of the positioning component of the present invention; Figure 5 This is a schematic diagram of the overall structure of the support component of the present invention; Figure 6 This is a schematic diagram of the overall structure of the fixing component of the present invention; Figure 7 This is a partial structural diagram of the fixing component of the present invention; Figure 8 This is a schematic diagram of the overall structure of the limiting structure of the present invention; Figure 9 This is a schematic diagram of the overall structure of the adjusting component and the movable component of the present invention; Figure 10 This is an exploded structural diagram of the clamping component of the present invention; Figure 11 This is a cross-sectional view of the rotating tube of the present invention; Figure 12 This is a cross-sectional view of the rotating structure of the present invention.

[0022] In the picture: 1. Frame; 2. Laser cutting head; 3. Fixed plate; 4. Positioning assembly; 41. Connecting plate; 42. Positioning frame; 43. Support component; 431. Support plate; 432. Support plate; 433. Movable groove; 434. Side opening plate; 44. Fixed component; 441. Fixed frame; 442. Buffer structure; 4421. Fixed block; 4422. Compression spring; 4423. Damping rod; 4424. Limiting sleeve; 443. Limiting structure; 4431. Connecting plate; 4432. L-shaped block; 4433. Limiting post; 45. Adjusting component; 46. 1. Servo motor; 452. Guide rail; 453. Threaded plate; 454. Push column; 455. Tripod; 46. Moving part; 461. U-shaped block; 462. Inclined groove; 463. Gripper; 464. Return spring; 465. Telescopic rod; 47. Clamping part; 471. Fixed column; 472. Elastic torsion bar; 473. Anti-detachment block; 474. Connecting ring; 475. Elastic connecting rod; 476. Rotating tube; 477. Anti-detachment groove; 478. Rotating structure; 4781. Elastic tube; 4782. Friction groove; 479. Extension rod. Detailed Implementation

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] Example 1, referring to Figure 1 - Figure 4 and Figure 10 - Figure 11 The first embodiment of the present invention provides a laser cutting device for alloy round bars, including a frame 1, a laser cutting head 2 fixedly connected to the top outer wall of the frame 1, a fixed plate 3 fixedly connected to the inner wall of the frame 1, and a positioning component 4 fixedly connected to the side wall of the fixed plate 3. The positioning component 4 includes a connecting plate 41 fixedly connected to the fixed plate 3, a support component 43 fixedly connected to the outer wall of the connecting plate 41, a positioning frame 42 slidably connected to the inner wall of the support component 43, a fixing component 44 fixedly connected to the inner wall of the support component 43, an adjusting component 45 fixedly connected to the outer wall of the support component 43, a movable component 46 slidably connected to the inner wall of the support component 43, and a clamping component 47 fixedly connected to the inner wall of the fixing component 44.

[0025] The clamping component 47 includes an extension rod 479 fixedly connected to the inner wall of the fixing component 44, a fixing post 471 fixedly connected to the outer wall of the middle part of the extension rod 479, an elastic torsion rod 472 fixedly connected to the inner wall of the fixing post 471, an anti-detachment block 473 fixedly connected to the top outer wall of the elastic torsion rod 472, a connecting ring 474 symmetrically fixedly connected to the outer wall of the elastic torsion rod 472, an elastic connecting rod 475 fixedly connected to the bottom inner wall of the connecting ring 474, a rotating tube 476 rotatably connected to the side wall of the fixing post 471, an anti-detachment groove 477 opened in the inner side wall of the rotating tube 476, and a rotating structure 478 fixedly connected to the rotating tube 476.

[0026] Specifically, the frame 1 serves as the overall support carrier. The laser cutting head 2 is mounted on the front of the frame 1, and the positioning component 4 is fixedly connected to the back of the frame 1 via a fixed plate 3. The connecting plate 41 of the positioning component 4 is fixed to the side wall of the fixed plate 3. The support plate 431, support plate 432, and side opening plate 434 of the support component 43 cooperate with each other to complete the overall structural support. At the same time, the side opening plate 434 forms a sliding limit on the positioning frame 42. The positioning frame 42 realizes the auxiliary clamping and positioning of the alloy round bar on the left and right sides. When the equipment is in operation, the long strip alloy round bar is fed in from the back of the frame 1, passes through the hollow holes of the connecting plate 41 and the fixed plate 3 in sequence, and penetrates the interior of the frame 1, finally extending to the working area of ​​the laser cutting head 2 on the front of the frame 1. The laser cutting of the alloy round bar is completed by adjusting the position of the laser cutting head 2. The positioning component 4 plays the role of auxiliary buffering, anti-deviation, and material stabilization.

[0027] Reference Figure 1 - Figure 4 and Figure 10 - Figure 12 The rotating structure 478 includes an elastic tube 4781 fixedly connected to the outer wall of the rotating tube 476, and a friction groove 4782 opened on the outer wall of the elastic tube 4781. The inner side wall of the elastic tube 4781 is rotatably connected to the outer wall of the fixed column 471, and the inner side wall of the rotating tube 476 is slidably connected to the outer wall of the anti-detachment block 473 through the anti-detachment groove 477.

[0028] Specifically, during the feeding process of the alloy round bar, the stroke away from the cutting area is conveyed using a traditional roller friction pushing method. When the round bar is pushed to the working area of ​​the clamping component 47, due to the large weight and strong feeding inertia of the alloy round bar, the traditional cylindrical point contact friction clamping method is prone to slippage and over-travel problems. Therefore, the clamping component 47 achieves adaptive buffering and material stabilization. The extension rod 479 of the clamping component 47 is fixed inside the limiting sleeve 4424 of the fixing component 44, so that the extension rod 479 and the fixing column 471 remain fixed and do not rotate. The fixing column 471 adopts an irregular shape structure with an upper round and lower arc, and... The outer wall of the alloy round bar is adapted to fit the elastic tube 4781 of the rotating structure 478 as the round bar is continuously fed. The elastic tube 4781 deforms under force and rotates along the outer wall of the fixed column 471. The friction groove 4782 on the outer wall of the elastic tube 4781 bends and fits tightly against the outer wall of the round bar as the structure deforms, thereby increasing the contact friction area with the alloy round bar. By replacing the traditional point contact friction with surface contact friction, the feeding inertia of the alloy round bar is effectively offset, reducing the problems of high-speed feeding slippage and cutting extension length exceeding the tolerance. This reduces the positioning and adjustment time of the laser cutting head 2 and improves the overall processing efficiency.

[0029] Reference Figure 1 - Figure 5 The support component 43 includes a support plate 431 fixedly connected to the outer wall of the connecting plate 41, a support plate 432 fixedly connected to the outer wall of the support plate 431, a movable groove 433 opened in the inner wall of the support plate 432, and a side opening plate 434 fixedly connected to the outer wall of the support plate 431. The inner wall of the side opening plate 434 is slidably connected to the outer wall of the positioning frame 42.

[0030] Specifically, the limiting structure 443 achieves limiting by sliding cooperation between the connecting plate 4431, the L-shaped block 4432 and the fixed frame 441 fixed in the movable groove 433. The buffer structure 442 inside the fixed component 44 can ensure that the U-shaped block 461 and the gripper 463 maintain rigidity when subjected to instantaneous force under normal conditions. At the same time, it can provide flexible buffer stroke when the round bar is fed to squeeze and clamp the component 47, adapting to the dynamic feeding condition of the round bar.

[0031] Example 2, refer to Figure 1 - Figure 6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the fixing component 44 includes a fixing frame 441 fixedly connected to the inner wall of the support plate 432, a buffer structure 442 fixedly disposed on the inner wall of the fixing frame 441, and a limiting structure 443 slidably connected to the outer wall of the fixing frame 441.

[0032] Specifically, before the alloy round bar is fed and cut, the equipment completes the pre-limiting by adjusting component 45. After the servo motor 451 is started, it drives the internal thread plate 453 to move along the guide rail 452, which drives the push column 454 to move synchronously and push the tripod 455. The inclined surface of the tripod 455 cooperates with the inclined groove 462 on the outer wall of the U-shaped block 461 of the movable component 46. Under the pressure of the inclined surface, the U-shaped block 461 is driven to slide upward, synchronously compressing the telescopic rod 465 and the return spring 464, thereby releasing the limit lock of the clamp 463 on the limit column 4433.

[0033] Reference Figure 1 - Figure 7 The buffer structure 442 includes a fixed block 4421 fixedly connected to the top of the inner wall of the fixed frame 441, a damping rod 4423 fixedly connected to the bottom outer wall of the fixed block 4421, a compression spring 4422 sleeved on the outside of the damping rod 4423, and a limiting sleeve 4424 fixedly connected to the bottom outer wall of the damping rod 4423.

[0034] Specifically, the buffer structure 442 consists of a fixed block 4421, a damping rod 4423, a compression spring 4422, and a limiting sleeve 4424. Under normal conditions, it can ensure that the U-shaped block 461 and the gripper 463 maintain a rigid state when subjected to instantaneous force. At the same time, it can provide a flexible buffer stroke when the round bar is fed to squeeze and clamp the component 47, adapting to the dynamic feeding conditions of the round bar.

[0035] Reference Figure 1 - Figure 8 The limiting structure 443 includes a connecting plate 4431 fixedly connected to the outer wall of the limiting sleeve 4424, an L-shaped block 4432 fixedly connected to the top outer wall of the connecting plate 4431, and a limiting post 4433 fixedly connected to the inner wall of the connecting plate 4431. The outer wall of the L-shaped block 4432 is slidably connected to the outer wall of the fixing frame 441.

[0036] Specifically, the limiting structure 443 achieves limiting through the sliding cooperation of the connecting plate 4431, the L-shaped block 4432, and the fixing frame 441. It can stably cooperate with the gripper 463 to complete the workpiece limiting locking and unlocking actions, and cooperate with the buffer structure 442 to achieve a combination of rigid bearing and flexible buffering. The rest of the structure is the same as the structure of Embodiment 1.

[0037] Example 3, referring to Figure 1 - Figure 9This is the third embodiment of the present invention, which differs from the second embodiment in that: the adjusting component 45 includes a servo motor 451 fixedly connected to the outer wall of the support plate 431, a guide rail 452 fixedly connected to the outer wall of the servo motor 451, an internally threaded plate 453 slidably connected to the outer wall of the guide rail 452, a push column 454 fixedly connected to the outer wall of the internally threaded plate 453, and a tripod 455 slidably connected to the outer wall of the guide rail 452. The output end of the servo motor 451 is connected to the internally threaded plate 453. The inner wall of the 3 is threaded, and the movable part 46 includes a U-shaped block 461 that is slidably connected to the inner wall of the support plate 432, an inclined groove 462 opened on the outer wall of the U-shaped block 461, a gripper 463 that is fixedly connected to the bottom outer wall of the U-shaped block 461, a telescopic rod 465 that is fixedly connected to the top outer wall of the U-shaped block 461, and a return spring 464 that is sleeved on the outside of the telescopic rod 465. The top outer wall of the return spring 464 and the top outer wall of the telescopic rod 465 are both fixedly connected to the outer wall of the fixed frame 441.

[0038] Specifically, the equipment completes the front limit switching operation through the adjustment component 45. After the servo motor 451 starts, it drives the internal thread plate 453 to move along the guide rail 452, which drives the push column 454 to move synchronously and push the tripod 455. Relying on the inclined surface, the U-shaped block 461 slides upward, compressing the telescopic rod 465 and the return spring 464, and quickly completing the limit unlocking of the gripper 463, which is suitable for workpiece loading and continuous feeding operations. The rest of the structure is the same as that of Embodiment 2.

[0039] Based on embodiments 1-3, the working principle of this invention is as follows: The frame 1 serves as the overall support carrier. The laser cutting head 2 is mounted on the front of the frame 1. The positioning component 4 is fixedly connected to the back of the frame 1 via a fixed plate 3. The connecting plate 41 of the positioning component 4 is fixed to the side wall of the fixed plate 3. The support plate 431, support plate 432, and side opening plate 434 of the support component 43 cooperate with each other to complete the overall structural support. At the same time, the side opening plate 434 forms a sliding limit on the positioning frame 42. The positioning frame 42 realizes the auxiliary clamping and positioning of the alloy round bar on both sides. When the equipment is in operation, the long strip alloy round bar is fed in from the back of the frame 1, passes through the hollow holes of the connecting plate 41 and the fixed plate 3 in sequence, and penetrates the interior of the frame 1, finally extending to the working area of ​​the laser cutting head 2 on the front of the frame 1. The laser cutting of the alloy round bar is completed by adjusting the position of the laser cutting head 2. The positioning component 4 plays the role of auxiliary buffering, anti-deviation, and material stabilization.

[0040] Before the alloy round bar is fed and cut, the equipment completes the pre-limiting by adjusting component 45. After the servo motor 451 is started, it drives the internal thread plate 453 to move along the guide rail 452, which drives the push column 454 to move synchronously and push the tripod 455. The inclined surface of the tripod 455 cooperates with the inclined groove 462 on the outer wall of the U-shaped block 461 of the movable component 46. Under the pressure of the inclined surface, the U-shaped block 461 is driven to slide upward, synchronously compressing the telescopic rod 465 and the return spring 464, thereby releasing the limit lock of the gripper 463 on the limit column 4433. The limiting structure 443 achieves the limiting by sliding cooperation between the connecting plate 4431, the L-shaped block 4432 and the fixed frame 441 fixed in the movable groove 433. The buffer structure 442 inside the fixed component 44 consists of a fixed block 4421, a damping rod 4423, a compression spring 4422 and a limiting sleeve 4424. Under normal conditions, it can ensure that the U-shaped block 461 and the gripper 463 maintain a rigid state when subjected to instantaneous force. At the same time, it can provide a flexible buffer stroke when the round bar is fed to squeeze and clamp the component 47, which is suitable for the dynamic feeding condition of the round bar.

[0041] During the feeding of the alloy bar, the travel away from the cutting area is conveyed using a traditional roller friction pushing method. When the bar is pushed to the working area of ​​the clamping component 47, due to the large weight and strong feeding inertia of the alloy bar, the traditional cylindrical point contact friction clamping method is prone to slippage and over-travel problems. Therefore, the clamping component 47 achieves adaptive buffering and material stabilization. The extension rod 479 of the clamping component 47 is fixed inside the limiting sleeve 4424 of the fixing component 44, so that the extension rod 479 and the fixing column 471 remain fixed and do not rotate. The fixing column 471 adopts an irregular shape with a round upper part and an arc lower part, which is consistent with the alloy bar. The outer wall of the round bar is adapted to fit the elastic tube 4781 of the rotating structure 478 as the round bar is continuously fed. The elastic tube 4781 deforms under force and rotates along the outer wall of the fixed column 471. The friction groove 4782 on the outer wall of the elastic tube 4781 bends and fits tightly against the outer wall of the round bar as the structure deforms, thereby increasing the contact friction area with the alloy round bar. By replacing the traditional point contact friction with surface contact friction, the feeding inertia of the alloy round bar is effectively offset, reducing the problems of high-speed feeding slippage and cutting extension length exceeding the tolerance. This reduces the positioning and adjustment time of the laser cutting head 2 and improves the overall processing efficiency.

[0042] During the deformation and rotation of the elastic tube 4781, the outer rotating tube 476 is simultaneously displaced. The rotating tube 476 slides and adapts to the anti-detachment block 473 through the inner anti-detachment groove 477. Under normal feeding conditions, it only performs normal sliding motion without additional structural interference. When the equipment encounters a situation where the round bar is fed rapidly and the inertial impact is too large, the elastic tube 4781 deforms and bends significantly, causing the rotating tube 476 to undergo slight deformation. The anti-detachment block 473 is squeezed by the inclined surface of the anti-detachment groove 477, which drives the anti-detachment block 473 and the elastic torsion rod 472 at the bottom to rotate. During the torsion of the elastic torsion rod 472, the connecting rings symmetrically arranged on the outer wall rotate. The connecting rings 474 rotate and squeeze the elastic connecting rod 475 at the bottom. The torsion buffer of the elastic torsion rod 472 and the deformation buffer of the elastic connecting rod 475 form a double buffer, which further weakens the inertial impact of the alloy round bar and thus reduces the problem of unstable feeding caused by large inertia.

[0043] Meanwhile, the deformed elastic tube 4781 tightly wraps around the outer wall of the alloy round bar, which can radially limit the round bar during the feeding process, effectively suppressing radial deflection and shaking during the round bar cutting operation, thereby helping to improve the cutting accuracy. The overall structure achieves friction enhancement and multi-level buffering through mechanical adaptive deformation. Without affecting the normal feeding of the round bar, it is suitable for the cutting conditions of the large weight and large inertia of the alloy round bar. Combined with the precise positioning of the front laser cutting head 2, it improves the stability and processing efficiency of the laser cutting of the alloy round bar.

[0044] Example 4, refer to Figure 1 - Figure 12 This is a fourth embodiment of the present invention, providing a laser cutting process for alloy round bars, comprising the following steps: S1. Workpiece insertion and positioning: The alloy round bar to be processed is inserted from the back side of the frame 1 into the inside of the fixed plate 3 and the connecting plate 41. The positioning frame 42 provides lateral auxiliary positioning of the workpiece to complete the initial positioning. S2, Limiting mechanism avoidance: Start the servo motor 451 to drive the internal thread plate 453 to slide along the guide rail 452, push the tripod 455 to lift the U-shaped block 461, and release the limit lock of the gripper 463; S3. Stable workpiece feeding: Push the alloy round bar forward. After the workpiece contacts the elastic tube 4781, it deforms and fits the workpiece. S4. Laser cutting operation: The alloy round bar is stably conveyed to the processing station, and the workpiece is laser cut by the laser cutting head 2 at the top of the frame 1. S5. Reset and Continuous Processing: After a single-segment cutting is completed, each mechanism is reset in the reverse direction, and the above process is repeated to realize the batch continuous cutting production of alloy round bars.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A laser cutting device for alloy round bars, comprising a frame (1), a laser cutting head (2) fixedly disposed on the outer wall of the top of the frame (1), and a fixing plate (3) fixedly disposed on the inner wall of the frame (1), characterized in that, It also includes a positioning component (4) that is fixedly installed on the side wall of the fixed plate (3); The positioning component (4) includes a connecting plate (41) fixedly mounted on the fixed plate (3), a support component (43) fixedly mounted on the outer wall of the connecting plate (41), a positioning frame (42) slidably mounted on the inner wall of the support component (43), a fixing component (44) fixedly mounted on the inner wall of the support component (43), an adjusting component (45) fixedly mounted on the outer wall of the support component (43), a movable component (46) slidably mounted on the inner wall of the support component (43), and a clamping component (47) fixedly mounted on the inner wall of the fixing component (44). The clamping component (47) includes an extension rod (479) fixedly disposed on the inner wall of the fixing component (44), a fixing post (471) fixedly disposed on the outer wall of the middle part of the extension rod (479), an elastic torsion rod (472) fixedly disposed on the inner wall of the fixing post (471), an anti-detachment block (473) fixedly disposed on the top outer wall of the elastic torsion rod (472), a connecting ring (474) symmetrically fixedly disposed on the outer wall of the elastic torsion rod (472), an elastic connecting rod (475) fixedly disposed on the bottom inner wall of the connecting ring (474), a rotating tube (476) rotatably disposed on the side wall of the fixing post (471), an anti-detachment groove (477) opened on the inner side wall of the rotating tube (476), and a rotating structure (478) fixedly disposed on the rotating tube (476).

2. The laser cutting device for alloy round bars according to claim 1, characterized in that: The rotating structure (478) includes an elastic tube (4781) fixedly disposed on the outer wall of the rotating tube (476) and a friction groove (4782) opened on the outer wall of the elastic tube (4781). The inner side wall of the elastic tube (4781) is rotatably connected to the outer wall of the fixed column (471). The inner side wall of the rotating tube (476) is slidably connected to the outer wall of the anti-detachment block (473) through the anti-detachment groove (477).

3. The laser cutting device for alloy round bars according to claim 2, characterized in that: The support component (43) includes a support plate (431) fixedly disposed on the outer wall of the connecting plate (41), a support plate (432) fixedly disposed on the outer wall of the support plate (431), an active groove (433) opened on the inner wall of the support plate (432), and a side opening plate (434) fixedly disposed on the outer wall of the support plate (431). The inner wall of the side opening plate (434) is slidably connected to the outer wall of the positioning frame (42).

4. The laser cutting device for alloy round bars according to claim 3, characterized in that: The fixing component (44) includes a fixing frame (441) fixedly disposed on the inner wall of the support plate (432), a buffer structure (442) fixedly disposed on the inner wall of the fixing frame (441), and a limiting structure (443) slidably disposed on the outer wall of the fixing frame (441).

5. The laser cutting device for alloy round bars according to claim 4, characterized in that: The buffer structure (442) includes a fixing block (4421) fixedly disposed on the top of the inner wall of the fixing frame (441), a damping rod (4423) fixedly disposed on the bottom outer wall of the fixing block (4421), a compression spring (4422) disposed on the outside of the damping rod (4423), and a limiting sleeve (4424) fixedly disposed on the bottom outer wall of the damping rod (4423).

6. The laser cutting device for alloy round bars according to claim 5, characterized in that: The limiting structure (443) includes a connecting plate (4431) fixedly disposed on the outer wall of the limiting sleeve (4424), an L-shaped block (4432) fixedly disposed on the top outer wall of the connecting plate (4431), and a limiting post (4433) fixedly disposed on the inner wall of the connecting plate (4431). The outer wall of the L-shaped block (4432) is slidably connected to the outer wall of the fixing frame (441).

7. The laser cutting device for alloy round bars according to claim 4, characterized in that: The adjustment component (45) includes a servo motor (451) fixedly mounted on the outer wall of the support plate (431), a guide rail (452) fixedly mounted on the outer wall of the servo motor (451), an internal thread plate (453) slidably mounted on the outer wall of the guide rail (452), a push column (454) fixedly mounted on the outer wall of the internal thread plate (453), and a tripod (455) slidably mounted on the outer wall of the guide rail (452). The output end of the servo motor (451) is threadedly connected to the inner wall of the internal thread plate (453).

8. The laser cutting apparatus for alloy round bars according to claim 7, characterized in that: The movable component (46) includes a U-shaped block (461) slidably disposed on the inner wall of the support plate (432), an inclined groove (462) opened on the outer wall of the U-shaped block (461), a gripper (463) fixedly disposed on the bottom outer wall of the U-shaped block (461), a telescopic rod (465) fixedly disposed on the top outer wall of the U-shaped block (461), and a return spring (464) disposed on the outside of the telescopic rod (465). The top outer wall of the return spring (464) and the top outer wall of the telescopic rod (465) are both fixedly connected to the outer wall of the fixing frame (441).

9. A laser cutting process for alloy round bars, employing the laser cutting apparatus for alloy round bars as described in claim 8, characterized in that, Includes the following steps: S1. Workpiece insertion and positioning: Insert the alloy round bar to be processed into the fixed plate (3) and the connecting plate (41) from the back side of the frame (1). The workpiece is laterally assisted and limited by the positioning frame (42) to complete the initial positioning. S2, Limiting mechanism avoidance: Start the servo motor (451) to drive the internal thread plate (453) to slide along the guide rail (452), push the tripod (455) to lift the U-shaped block (461), and release the limit lock of the gripper (463); S3. Stable workpiece feeding: Push the alloy round bar forward. After the workpiece contacts the elastic tube (4781), it deforms and fits the workpiece. S4, Laser cutting operation: The alloy round bar is stably conveyed to the processing station, and the workpiece is laser cut using the laser cutting head (2) on the top of the frame (1); S5. Reset and Continuous Processing: After a single-segment cutting is completed, each mechanism is reset in the reverse direction, and the above process is repeated to realize the batch continuous cutting production of alloy round bars.

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