Laser ring cutting machine

The workpiece is quickly and stably clamped by a motor-driven threaded rod and sliding block structure. Combined with an absorption fan and filter box system, the problems of unstable clamping and dust pollution in laser circumcision machines are solved, improving processing accuracy and environmental protection.

CN224222993UActive Publication Date: 2026-05-12HANGZHOU YONGTENG RUBBER & PLASTIC IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU YONGTENG RUBBER & PLASTIC IND
Filing Date
2025-05-21
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing laser circumferential cutting machines cause inconsistencies in the center of cylindrical workpieces when clamping them, affecting the accuracy of the cutting path and consequently the cutting accuracy and dimensional accuracy.

Method used

The system employs a motor-driven threaded rod and sliding block structure, along with a rotating ring and clamping blocks, to achieve rapid and stable clamping of the workpiece. It also removes fumes and dust from the laser cutting process through an absorption fan and filter box system, protecting the environment and the health of operators.

Benefits of technology

It improves the accuracy and efficiency of workpiece processing, while reducing environmental pollution and increasing the ease of equipment maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of laser cutting, and discloses a laser ring cutting machine which comprises a working table, two fixing assemblies are arranged on the top of the working table, a supporting seat is fixedly connected to the rear end of the working table, an absorbing assembly is arranged on the top of the supporting seat, a laser ring cutting assembly is arranged on the top of the working table, and the laser ring cutting assembly is fixedly connected to the rear end of the working table. The laser ring cutting assembly is located between the two fixing assemblies, each fixing assembly comprises a supporting frame, the supporting frames are fixedly connected to the top of the workbench, rotating rings are rotationally connected into the supporting frames, and a plurality of rotating rods are rotationally connected into the supporting frames. According to the laser ring cutting device, the first motor is started to drive the threaded rod to rotate, so that the first sliding block slides in the sliding groove in the top of the supporting frame, the rotating ring is driven to rotate, the clamping block is driven to move, a workpiece is rapidly and stably clamped, the center line of the workpiece is aligned with the rotating frame, and follow-up laser ring cutting operation is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, and in particular to a laser circumferential cutting machine. Background Technology

[0002] In modern industrial production, laser circumferential cutting technology, as an advanced cutting process, is widely used in many fields such as electronics, automobiles, and aerospace. It utilizes a high-energy-density laser beam, focused on the surface of the workpiece, to melt or vaporize the material instantly, thereby achieving precise cutting.

[0003] Existing laser circumferential cutting machines consist of a worktable, a laser generator, and a cutting head. During operation, the workpiece to be processed is placed on the worktable, and the cutting parameters are set through the control system. The laser generator produces a laser beam, which is transmitted to the cutting head through the optical path. The cutting head moves above the workpiece along a preset path to achieve the circumferential cutting operation.

[0004] Existing laser circumferential cutting machines can perform circumferential cutting operations very well, but they still have some shortcomings in fixing cylindrical workpieces. Existing laser circumferential cutting machines use a clamping method on both sides to clamp the cylindrical workpiece. Although this can fix it stably, it will cause the center of the cylindrical workpiece to be inconsistent each time, causing the laser cutting path to deviate from the preset path. Ultimately, this will affect the cutting accuracy, resulting in the dimensional accuracy, roundness and other indicators of the cut workpiece not meeting the ideal requirements. Therefore, a laser circumferential cutting machine is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a laser circumferential cutting machine, which aims to improve the problem in the prior art where the center of the cylindrical workpiece is inconsistent each time, causing the laser cutting path to deviate from the preset path and ultimately affecting the cutting accuracy.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A laser circumferential cutting machine includes a worktable, two fixed components are provided on the top of the worktable, a support base is fixedly connected to the rear end of the worktable, an absorption component is provided on the top of the support base, a laser circumferential cutting component is provided on the top of the worktable, and the laser circumferential cutting component is located between the two fixed components.

[0008] Both of the aforementioned fixed components include a support frame, which is fixedly connected to the top of the workbench. A rotating ring is rotatably connected inside the support frame, and multiple rotating rods are rotatably connected inside the support frame. Rotating rods are fixedly connected to the outer periphery of each of the multiple rotating rods, and clamping blocks are fixedly connected to the other end of each of the multiple rotating rods. Sliding blocks are slidably connected to the outer periphery of each of the multiple rotating rods, and multiple sliding blocks are rotatably connected inside the rotating ring. A lever is fixedly connected to the top of the rotating ring, and a drive component is provided on the top of the support frame.

[0009] As a further description of the above technical solution:

[0010] The drive assembly includes two fixed blocks and a motor. The two fixed blocks are fixedly connected to the top of the support frame. The two fixed blocks are rotatably connected to a threaded rod on opposite sides. The motor is installed at the rear end of the fixed blocks. The output end of the motor is fixedly connected to the rear end of the threaded rod. A sliding block is threadedly connected to the outer circumference of the threaded rod. A sliding block is rotatably connected to the right side of the sliding block. The sliding block is slidably connected to the outer circumference of the lever.

[0011] As a further description of the above technical solution:

[0012] The top of the support frame is provided with a sliding groove, and the sliding block is slidably connected inside the sliding groove;

[0013] As a further description of the above technical solution:

[0014] The absorption assembly includes a support shell, which is fixedly connected to the top of the support base. An absorption fan is installed inside the support shell, and a filter box is installed inside the support shell. The filter box is located to the right of the absorption fan. An absorption pipe is fixedly connected to the right side of the support shell, and a disassembly assembly is provided inside the support shell.

[0015] As a further description of the above technical solution:

[0016] The disassembly assembly includes two locking blocks, which are slidably connected inside the support shell. Each locking block has a pull rod fixedly connected to its rear end, and each pull rod has a spring sleeved on its outer periphery. The filter box has two slots at its rear end, and the two locking blocks are respectively engaged in the two slots.

[0017] As a further description of the above technical solution:

[0018] Both of the pull rods are fixedly connected to the rear ends of the two pull rods, and both of the two limit blocks abut against the rear ends of the support shell.

[0019] As a further description of the above technical solution:

[0020] The support shell has two limiting grooves inside, the two pull rods are slidably connected to the two limiting grooves, the front ends of the two springs are fixedly connected to the rear ends of the two locking blocks, and the rear ends of the two springs are fixedly connected to the two limiting grooves.

[0021] As a further description of the above technical solution:

[0022] The two limiting blocks are fixedly connected to the rear ends of the two limiting blocks, and the filter box is fixedly connected to the top of the filter box.

[0023] As a further description of the above technical solution:

[0024] The laser circumferential cutting assembly includes a fixed base, which is fixedly connected to the top of the workbench. A rotating frame is rotatably connected inside the fixed base. A telescopic frame is fixedly connected to the right side of the rotating frame. A laser cutter is slidably connected to the right side of the telescopic frame. A second driving assembly is provided inside the fixed base.

[0025] As a further description of the above technical solution:

[0026] The second drive assembly includes a drive wheel and a second motor. The drive wheel is rotatably connected inside the fixed base. A pulley is sleeved on the outer circumference of the drive wheel. The other end of each pulley is sleeved on the outer circumference of a rotating frame. The second motor is installed on the left side of the fixed base, and the output end of the second motor is fixedly connected to the left side of the drive wheel.

[0027] This utility model has the following beneficial effects:

[0028] 1. In this utility model, through the cooperation between motor one, threaded rod, sliding block one, sliding block two, rotating ring, slider, rotating rod, and clamping block, motor one starts and drives the threaded rod to rotate, causing sliding block one to slide in the groove at the top of the support frame. Sliding block one drives sliding block two to move, and sliding block two slides on the outer periphery of the lever, thereby driving the rotating ring to rotate. When the rotating ring rotates, the internal slider rotates accordingly, and the rotating rod drives the clamping block to move, realizing the rapid and stable clamping of the workpiece, and aligning the center line of the workpiece with the rotating frame, which facilitates subsequent laser circumferential cutting operations, improves processing efficiency and workpiece processing accuracy.

[0029] 2. In this utility model, the absorption fan, filter box, absorption tube, locking block, pull rod, spring, and locking slot work together to start the absorption fan. The absorption tube draws in the smoke and dust generated during the laser circumferential cutting process into the support shell, where it is filtered and discharged, reducing pollution to the working environment and protecting the health of operators. When the filter box needs to be replaced, the handle is pulled, which moves the limit block and pull rod backward. The pull rod compresses the spring, causing the locking block to disengage from the locking slot at the rear of the filter box. The filter box can then be easily removed for replacement using the handle, solving the problem of inconvenient filter box replacement and improving the ease of equipment maintenance. Attached Figure Description

[0030] Figure 1 This is a three-dimensional schematic diagram of a laser circumferential cutting machine proposed in this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the fixing component of a laser circumferential cutting machine proposed in this utility model;

[0032] Figure 3 This is a schematic diagram of the structure of a drive assembly for a laser circumferential cutting machine according to the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of a support base for a laser circumferential cutting machine proposed in this utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the absorption component of a laser circumferential cutting machine proposed in this utility model;

[0035] Figure 6 This is a schematic diagram of the disassembly assembly of a laser circumferential cutting machine according to the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of the laser circumcision component of a laser circumcision machine proposed in this utility model.

[0037] Legend:

[0038] 1. Workbench;

[0039] 2. Fixing components; 201. Support frame; 202. Rotating ring; 203. Rotating rod; 204. Rotating rod; 205. Clamping block; 206. Sliding block; 207. Turning lever;

[0040] 3. Drive assembly one; 301. Fixed block; 302. Threaded rod; 303. Motor one; 304. Sliding block one; 305. Sliding block two;

[0041] 4. Support base;

[0042] 5. Absorption assembly; 501. Support shell; 502. Absorption fan; 503. Filter box; 504. Absorption pipe;

[0043] 6. Disassembly components; 601. Locking block; 602. Pull rod; 603. Spring; 604. Limiting block; 605. Handle; 606. Locking groove; 607. Limiting groove; 608. Handle;

[0044] 7. Laser circumferential cutting assembly; 701. Fixed base; 702. Rotating frame; 703. Telescopic frame; 704. Laser cutter;

[0045] 8. Drive component two; 801. Drive wheel; 802. Pulley; 803. Motor two. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] Reference Figures 1-7 The present invention provides an embodiment of a laser circumferential cutting machine, comprising a worktable 1, a support base 4 fixedly connected to the rear end of the worktable 1, a laser circumferential cutting assembly 7 disposed on the top of the worktable 1, the laser circumferential cutting assembly 7 being located between two fixed assemblies 2, the laser circumferential cutting assembly 7 comprising a fixed seat 701, the fixed seat 701 being fixedly connected to the top of the worktable 1, a rotating frame 702 being rotatably connected inside the fixed seat 701, a telescopic frame 703 being fixedly connected to the right side of the rotating frame 702, a laser cutter 704 being slidably connected to the right side of the telescopic frame 703, a second drive assembly 8 disposed inside the fixed seat 701, the second drive assembly 8 comprising a drive wheel 801 and a second motor 803, the drive wheel 801 being rotatably connected inside the fixed seat 701, a pulley 802 being sleeved on the outer periphery of the drive wheel 801, the other end of the pulley 802 being sleeved on the outer periphery of the rotating frame 702, the second motor 803 being installed on the left side of the fixed seat 701, and the output end of the second motor 803 being fixedly connected to the left side of the drive wheel 801;

[0048] Specifically, the workbench 1 is used to support the workpiece to be processed, the support base 4 fixedly connected at the rear end is used to install the absorption component, and the two fixed components 2 set at the top are used to firmly clamp the workpiece. The fixed base 701 is fixed on the top of the workbench 1. The rotating frame 702 internally rotatably connects to the telescopic frame 703 and the laser cutter 704 in sequence on the right side. The telescopic frame 703 can drive the laser cutter 704 to rotate to complete the circumferential cutting. The motor 803 is installed on the left side of the fixed base 701. After starting, its output end drives the drive wheel 801 to rotate. The drive wheel 801 drives the rotating frame 702 to rotate through the outer peripheral pulley 802, so that the laser cutter 704 makes a circular motion around the workpiece to complete the laser circumferential cutting operation.

[0049] Reference Figures 1-3 The top of the workbench 1 is provided with two fixed components 2, each of which includes a support frame 201. The support frame 201 is fixedly connected to the top of the workbench 1. A rotating ring 202 is rotatably connected inside the support frame 201. Multiple rotating rods 203 are rotatably connected inside the support frame 201. Rotating rods 204 are fixedly connected to the outer periphery of each of the multiple rotating rods 203. Clamping blocks 205 are fixedly connected to the other end of each of the multiple rotating rods 204. Sliding blocks 206 are slidably connected to the outer periphery of each of the multiple rotating rods 204. Multiple sliding blocks 206 are rotatably connected inside the rotating ring 202. A lever 207 is fixedly connected to the top of the rotating ring 202. A drive lever 207 is provided on the top of the support frame 201. The drive assembly 3 includes two fixed blocks 301 and a motor 303. The two fixed blocks 301 are fixedly connected to the top of the support frame 201. The two fixed blocks 301 are rotatably connected to a threaded rod 302 on one side facing each other. The motor 303 is installed at the rear end of the fixed blocks 301. The output end of the motor 303 is fixedly connected to the rear end of the threaded rod 302. The outer circumference of the threaded rod 302 is threadedly connected to a sliding block 304. The right side of the sliding block 304 is rotatably connected to a sliding block 305. The sliding block 305 is slidably connected to the outer circumference of the lever 207. The top of the support frame 201 has a horizontal groove, and the sliding block 304 is slidably connected inside the groove.

[0050] Specifically, the support frame 201 supports and fixes components such as the rotating ring 202 and the rotating rod 203. The rotating ring 202 rotates within the support frame 201, driving the connected slider 206 to rotate. Through the sliding connection between the slider 206 and the rotating rod 204, the rotating rod 204 rotates, ultimately moving the clamping block 205. The rotating rod 203 provides a rotational support point for the rotating rod 204, ensuring its stable rotation. The clamping block 205 is used to clamp the workpiece, fixing it in place. The slider 206, as the connecting component between the rotating ring 202 and the rotating rod 204, converts the rotation of the rotating ring 202 into the rotation of the rotating rod 204. The lever 207 is fixed to the top of the rotating ring 202 and is used to drive the rotating ring 202 to rotate. Two fixing blocks 301 are fixed to the top of the support frame 201. The threaded rod 302, which is rotatably connected to one side of the threaded rod, rotates under the drive of the motor 303. The sliding block 304, which is threaded to the outer circumference of the threaded rod 302, slides smoothly in the groove at the top of the support frame 201 as the threaded rod 302 rotates. The sliding block 305, which is rotatably connected to the right side of the sliding block 304, is slidably connected to the outer circumference of the lever 207. When the sliding block 304 slides, it will drive the sliding block 305 to slide on the lever 207, thereby actuating the lever 207 and causing the rotating ring 202 to rotate.

[0051] Reference Figures 4-6 An absorption assembly 5 is provided on the top of the support base 4. The absorption assembly 5 includes a support shell 501, which is fixedly connected to the top of the support base 4. An absorption fan 502 is installed inside the support shell 501, and a filter box 503 is installed inside the support shell 501. The filter box 503 is located to the right of the absorption fan 502. An absorption pipe 504 is fixedly connected to the right side of the support shell 501. A disassembly assembly 6 is provided inside the support shell 501. The disassembly assembly 6 includes two locking blocks 601, which are slidably connected inside the support shell 501. A pull rod 602 is fixedly connected to the rear end of each of the two locking blocks 601, and a spring 603 is sleeved on the outer periphery of each of the two pull rods 602. Two slots 606 are provided at the rear end of the filter box 503. Two locking blocks 601 are respectively locked into the two slots 606. The rear ends of the two pull rods 602 are fixedly connected to limit blocks 604. The two limit blocks 604 abut against the rear end of the support shell 501. Two limit grooves 607 are provided inside the support shell 501. The two pull rods 602 are respectively slidably connected to the two limit grooves 607. The front ends of the two springs 603 are respectively fixedly connected to the rear ends of the two locking blocks 601. The rear ends of the two springs 603 are respectively fixedly connected to the two limit grooves 607. Handles 605 are fixedly connected to the rear ends of the two limit blocks 604. A handle 608 is fixedly connected to the top of the filter box 503.

[0052] Specifically, the support shell 501 is fixed to the top of the support base 4, serving as the outer shell of the entire assembly and providing protection and support. The absorption fan 502 is installed inside the support shell 501. The suction generated during its operation draws smoke and dust and other impurities generated in the laser circumferential cutting area into the support shell 501 through the absorption pipe 504 fixedly connected to the right side. The filter box 503 is located to the right of the absorption fan 502. After the smoke and dust are drawn in, they are filtered by the filter box 503, which effectively removes impurities, ensuring that the exhaust air meets environmental protection standards and reducing pollution to the working environment. Two locking blocks 601 can slide inside the support shell 501, and their rear ends are fixedly connected to pull rods 602. Springs 603 fitted around the outer periphery of the pull rods 602 provide elastic support for the locking blocks 601. The rear end of the filter box 503... Two slots 606 are provided, which cooperate with the locking blocks 601. The locking blocks 601 are respectively locked into the slots 606 to achieve the fixed installation of the filter box 503. Two limiting grooves 607 are provided inside the support shell 501. The pull rods 602 slide in the limiting grooves 607 respectively. The front end of the spring 603 is fixed to the rear end of the locking block 601, and the rear end is fixed inside the limiting groove 607, which ensures that the locking block 601 can stably lock the filter box 503 during normal operation. The rear ends of the two pull rods 602 are fixedly connected to the limiting blocks 604 to prevent the pull rods 602 from coming out of the support shell 501. The rear end of the limiting blocks 604 is also fixedly connected to the handles 605, which makes it convenient for the operator to pull the pull rods 602. A handle 608 is provided on the top of the filter box 503 to facilitate the operator to remove the filter box 503.

[0053] Working principle: When the workpiece needs to be fixed for subsequent laser circumferential cutting, motor 303 is started. The output end of motor 303 drives the threaded rod 302 to rotate. When the threaded rod 302 rotates, the sliding block 304 slides smoothly in the groove. As the sliding block 304 moves, the sliding block 305 slides on the lever 207, thereby actuating the lever 207. This causes the rotating ring 202 to rotate inside the support frame 201. When the rotating ring 202 rotates, the slider 206 connected inside it rotates accordingly, causing the rotating rod 204 to rotate around the rotating rod 203. The clamping block 205 at the other end of the rotating rod 204 moves under the action of the rotating rod 204. Multiple clamping blocks 205 approach the workpiece from different directions, achieving rapid and stable clamping of the workpiece, aligning the center line of the workpiece with the rotating frame 702, thus ensuring precise laser circumferential cutting operations. When the workpiece needs to be removed after processing, the motor 303 is started in reverse to make the components move in the opposite direction. The clamping block 205 releases the workpiece, and the processed workpiece can be taken out.

[0054] When the laser circumcision machine is performing circumcision operations, the absorption fan 502 is activated. The operation of the absorption fan 502 generates suction, which draws the smoke and dust generated during the laser circumcision process into the support housing 501 through the absorption tube 504. The sucked-in smoke and dust are filtered by the filter box 503, and the filtered air is discharged, effectively reducing pollution to the working environment and protecting the health of the operators. When the filter box 503 needs to be replaced after a period of use, the handle 605 is pulled. The handle 605 drives the limit block 604 and the pull rod 602 to move backward, and the pull rod 602 compresses the spring 604 sleeved on its outer periphery. 03. As the pull rod 602 moves, the locking block 601, which is fixedly connected to the rear end of the pull rod 602, gradually disengages from the locking slot 606 at the rear end of the filter box 503. At this time, the filter box 503 is no longer fixed. The operator can easily remove the filter box 503 for replacement through the handle 608 on the top of the filter box 503. When replacing the filter box 503, align the locking slot 606 on the filter box 503 with the locking block 601, release the handle 605, and the elastic force of the spring 603 will cause the pull rod 602 to move forward. The locking block 601 will re-engage in the locking slot 606, completing the replacement of the filter box 503.

[0055] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laser circumferential cutting machine, comprising a worktable (1), characterized in that: The workbench (1) has two fixed components (2) on its top. The workbench (1) has a support base (4) fixedly connected to its rear end. The support base (4) has an absorption component (5) on its top. The workbench (1) has a laser circumferential cutting component (7) on its top. The laser circumferential cutting component (7) is located between the two fixed components (2). Both of the fixed components (2) include a support frame (201), which is fixedly connected to the top of the workbench (1). A rotating ring (202) is rotatably connected inside the support frame (201). Multiple rotating rods (203) are rotatably connected inside the support frame (201). Rotating rods (204) are fixedly connected to the outer periphery of each of the multiple rotating rods (203). A clamp (205) is fixedly connected to the other end of each of the multiple rotating rods (204). A slider (206) is slidably connected to the outer periphery of each of the multiple rotating rods (204). The sliders (206) are rotatably connected inside the rotating ring (202). A lever (207) is fixedly connected to the top of the rotating ring (202). A drive component (3) is provided on the top of the support frame (201).

2. The laser circumferential cutting machine according to claim 1, characterized in that: The drive assembly (3) includes two fixed blocks (301) and a motor (303). The two fixed blocks (301) are fixedly connected to the top of the support frame (201). The two fixed blocks (301) are rotatably connected to a threaded rod (302) on opposite sides. The motor (303) is installed at the rear end of the fixed blocks (301). The output end of the motor (303) is fixedly connected to the rear end of the threaded rod (302). The outer circumference of the threaded rod (302) is threadedly connected to a sliding block (304). The right side of the sliding block (304) is rotatably connected to a sliding block (305). The sliding block (305) is slidably connected to the outer circumference of the lever (207).

3. A laser circumferential cutting machine according to claim 2, characterized in that: The support frame (201) has a groove on its top, and the sliding block (304) is slidably connected inside the groove.

4. A laser circumferential cutting machine according to claim 1, characterized in that: The absorption assembly (5) includes a support shell (501), which is fixedly connected to the top of the support base (4). An absorption fan (502) is installed inside the support shell (501), and a filter box (503) is installed inside the support shell (501). The filter box (503) is located to the right of the absorption fan (502). An absorption pipe (504) is fixedly connected to the right side of the support shell (501), and a disassembly assembly (6) is provided inside the support shell (501).

5. A laser circumferential cutting machine according to claim 4, characterized in that: The disassembly assembly (6) includes two locking blocks (601), which are slidably connected inside the support shell (501). Each locking block (601) has a pull rod (602) fixedly connected to its rear end. Each pull rod (602) has a spring (603) sleeved on its outer periphery. The filter box (503) has two slots (606) at its rear end, and the two locking blocks (601) are respectively engaged inside the two slots (606).

6. A laser circumferential cutting machine according to claim 5, characterized in that: Both of the pull rods (602) are fixedly connected to the rear ends of the limit blocks (604), and both of the limit blocks (604) abut against the rear ends of the support shell (501).

7. A laser circumferential cutting machine according to claim 5, characterized in that: The support shell (501) has two limiting grooves (607) inside. The two pull rods (602) are slidably connected inside the two limiting grooves (607). The front ends of the two springs (603) are fixedly connected to the rear ends of the two locking blocks (601), and the rear ends of the two springs (603) are fixedly connected inside the two limiting grooves (607).

8. A laser circumferential cutting machine according to claim 6, characterized in that: The two limiting blocks (604) are fixedly connected to the rear ends of the handles (605), and the filter box (503) is fixedly connected to the top of the handle (608).

9. A laser circumferential cutting machine according to claim 1, characterized in that: The laser circumcision assembly (7) includes a fixed base (701), which is fixedly connected to the top of the workbench (1). A rotating frame (702) is rotatably connected inside the fixed base (701). A telescopic frame (703) is fixedly connected to the right side of the rotating frame (702). A laser cutter (704) is slidably connected to the right side of the telescopic frame (703). A second driving assembly (8) is provided inside the fixed base (701).

10. A laser circumferential cutting machine according to claim 9, characterized in that: The second drive assembly (8) includes a drive wheel (801) and a second motor (803). The drive wheel (801) is rotatably connected inside the fixed base (701). A pulley (802) is sleeved on the outer periphery of the drive wheel (801). The other end of each pulley (802) is sleeved on the outer periphery of a rotating frame (702). The second motor (803) is installed on the left side of the fixed base (701). The output end of the second motor (803) is fixedly connected to the left side of the drive wheel (801).