Laser cutting equipment for high-precision computer shell production

Abstract

The invention relates to the technical field of laser cutting equipment, in particular to high-precision computer shell production laser cutting equipment which comprises a rack, a laser cutter is mounted on the rack, a fixing frame is fixedly mounted on one side of the rack, a rotating sleeve is rotationally connected to the fixing frame, and a movable sleeve is arranged on one side of the rotating sleeve. A suction sleeve is arranged below the movable sleeve, a transmission mechanism is arranged in the suction sleeve in a rotating connection mode, a coating treatment mechanism is installed at one end of the transmission mechanism, and a coating particle collecting mechanism is arranged at the discharge end of the suction sleeve in a rotating connection mode. According to the laser cutting equipment for high-precision computer shell production, the coating of the to-be-cut area can be effectively removed before cutting, it is ensured that laser makes direct contact with a base material, the cutting precision and quality are improved, cutting spots or burrs caused by the influence of the coating are reduced, and the laser cutting equipment for high-precision computer shell production has higher cutting quality and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of laser cutting equipment technology, and in particular to a laser cutting equipment for producing high-precision computer casings. Background Technology

[0002] Laser cutting equipment used in the production of high-precision computer casings plays an important role in modern manufacturing, offering advantages such as high efficiency, high precision, and flexibility.

[0003] The prior art publication CN118385793B provides a laser cutting device for processing laptop casings, which can promote relative stability between the mounting plate and the laptop casing to be cut, making the cutting process more stable. Moreover, the device can perform cutting and compaction operations on different laptop casings simultaneously, effectively improving processing efficiency and achieving better results.

[0004] During the manufacturing process, computer casings have various coatings on their surface. However, existing laser cutting techniques cannot easily remove these coatings at the cutting location. The coatings may cause uneven contact between the laser and the material, affecting the cutting quality and resulting in rough cutting edges, insufficient cutting depth, or damage to the material.

[0005] In summary, the existing technology lacks a technique for pre-treating with a coating during laser cutting of computer casings. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by proposing a high-precision laser cutting device for manufacturing computer casings.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a laser cutting device for high-precision computer casing production, comprising a frame, a laser cutter mounted on the frame, a fixed frame mounted and fixedly installed on one side of the frame, a rotating sleeve rotatably connected to the fixed frame, a movable sleeve on one side of the rotating sleeve, a suction sleeve below the movable sleeve, a transmission mechanism rotatably connected inside the suction sleeve, a coating treatment mechanism mounted at one end of the transmission mechanism, and a coating particle collection mechanism rotatably connected to the discharge end of the suction sleeve.

[0008] Preferably, a motor is fixedly connected to one end of the rotating sleeve, and the motor is fixedly connected to the fixed frame.

[0009] Preferably, an electric actuator is fixedly connected to one side of the movable sleeve, the electric actuator being fixedly connected through the inner wall of the rotating sleeve, and an electric actuator is fixedly connected through the inner wall of the movable sleeve, the output end of the electric actuator being fixedly connected to the suction sleeve.

[0010] Preferably, a fan blade is rotatably connected to the inner wall of the suction sleeve near the output end. A driven wheel is fixedly connected to one end of the fan blade, and a worm gear is fixedly connected to the other end of the fan blade through the inner wall of the output end. An I-shaped frame is fixedly connected to the output end of the suction sleeve. The opposite sides of the upper and lower ends of the I-shaped frame have arc-shaped grooves in a cross structure. The arc-shaped groove at the top is connected to the output end of the suction sleeve, and the arc-shaped groove on the lower side is a through structure. A receiving seat is threadedly connected to the outer wall of the bottom end of the I-shaped frame, and an annular rack is fixedly connected to the upper side of the bottom end of the I-shaped frame.

[0011] Preferably, the transmission mechanism includes a transmission shaft, a second motor is fixedly connected to the top end of the transmission shaft, the second motor is fixedly connected to the inner wall of the suction sleeve, and a driving wheel is fixedly connected to the outer wall of the middle part of the transmission shaft, the driving wheel and the driven wheel are meshed and transmitted.

[0012] Preferably, two locking blocks are symmetrically arranged on both sides of the bottom end of the drive shaft and slide together. A spring is fixedly connected to the inner end of the locking block, and the other end of the spring is fixedly connected to the inner wall of the bottom end of the drive shaft. An inclined surface is provided at one end of the locking block.

[0013] Preferably, the coating treatment mechanism includes a grinding shaft, and a snap-fit ​​sleeve is fixedly connected to the top end of the grinding shaft. The inner wall of the snap-fit ​​sleeve is movably snapped into the bottom end of the transmission shaft and the end of the snap-fit ​​block with an inclined surface.

[0014] Preferably, the coating particle collection mechanism includes a rotating frame, one end of which extends through the top of the I-shaped frame to the outside and is fixedly connected to a worm gear. The worm gear meshes with a worm for transmission. Multiple filter tubes are fixedly connected to the rotating frame in a ring structure. The upper and lower ends of the filter tubes are slidably engaged with the inner walls of the upper and lower ends of the I-shaped frame, respectively.

[0015] Preferably, the rotating frame has multiple L-shaped rods rotatably connected in a ring structure. A gear is fixedly connected to the bottom end of each L-shaped rod, and the gear meshes with a ring rack for transmission. The rotating frame has multiple contact rods slidably connected in a ring structure. A spring is fixedly connected between the bottom end of each contact rod and the rotating frame. One end of each contact rod is in slidable contact with the outer wall of the filter tube, and the other end of each contact rod is in slidable contact with the top end of the L-shaped rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: By setting up a coating treatment mechanism, the transmission mechanism can drive the grinding shaft to rotate, which can effectively remove the coating in the area to be cut before cutting, ensuring that the laser directly contacts the substrate, improving the cutting accuracy and quality, and reducing cutting spots or burrs caused by the coating. At the same time, the coating treatment mechanism can be quickly replaced according to the width of the cutting path or the wear of the grinding shaft, so that the equipment can adapt to different thicknesses and types of coatings, broadening the application range of the equipment, and making the laser cutting equipment for high-precision computer shell production have higher cutting quality and production efficiency. By setting up a suction hood and coating particle collection mechanism, the transmission mechanism drives the coating treatment mechanism while simultaneously rotating the fan blades. In conjunction with the suction sleeve, the removed coating particles are sucked up and filtered for collection, ensuring the cleanliness of the computer casing. The clean environment reduces the interference of the removed particles on laser cutting, ensuring the stability of the laser beam and improving the precision and consistency of cutting. This is especially important in high-precision processing, and can significantly improve the performance and efficiency of laser cutting equipment used in the production of high-precision computer casings, promoting safe, healthy and environmentally friendly production. By setting up rotating and movable sleeves, the coating treatment mechanism can be dynamically adjusted according to the cutting path, providing flexibility, precision and efficiency for laser cutting equipment used in the production of high-precision computer casings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a laser cutting equipment for producing high-precision computer casings according to the present invention; Figure 2 This is a partial cross-sectional view of a laser cutting device for producing high-precision computer casings according to the present invention. Figure 3 This is a schematic diagram of the rotating sleeve structure of a laser cutting equipment for producing high-precision computer casings according to the present invention; Figure 4 This is a schematic diagram of the movable sleeve structure of a laser cutting equipment for producing high-precision computer casings according to the present invention; Figure 5 This is a partial cross-sectional view of the suction sleeve structure of a laser cutting equipment for producing high-precision computer casings according to the present invention. Figure 6 This is a partial cross-sectional schematic diagram of the transmission mechanism structure of a laser cutting equipment for producing high-precision computer casings according to the present invention; Figure 7 This is a schematic diagram of the coating treatment mechanism of a laser cutting equipment for producing high-precision computer casings according to the present invention; Figure 8 This is a schematic diagram showing the structure of the coating particle collection mechanism in a laser cutting device for producing high-precision computer casings according to the present invention.

[0018] The diagram shows: 1. Frame; 2. Laser cutter; 3. Fixed frame; 4. Rotating sleeve; 5. Movable sleeve; 6. Suction sleeve; 7. Transmission mechanism; 8. Coating treatment mechanism; 9. Coating particle collection mechanism; 401. Motor 1; 501. Electric push rod 1; 502. Electric push rod 2; 601. Fan blade; 602. Driven wheel; 603. Worm gear; 604. I-beam frame; 605. Material receiving seat; 606. Ring rack; 701. Drive shaft; 702. Motor 2; 703. Drive wheel; 704. Clamping block; 705. Spring 1; 801. Grinding shaft; 802. Clamping sleeve; 901. Rotating frame; 902. Worm gear; 903. Filter tube; 904. L-shaped rod; 905. Gear; 906. Contact rod; 907. Spring 2. Detailed Implementation

[0019] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0020] like Figures 1-8 The laser cutting equipment for producing high-precision computer casings shown includes a frame 1, a laser cutter 2 mounted on the frame 1, a fixed frame 3 fixedly mounted on one side of the frame 1, a rotating sleeve 4 rotatably connected to the fixed frame 3, a movable sleeve 5 on one side of the rotating sleeve 4, a suction sleeve 6 below the movable sleeve 5, a transmission mechanism 7 rotatably connected inside the suction sleeve 6, a coating treatment mechanism 8 mounted at one end of the transmission mechanism 7, and a coating particle collection mechanism 9 rotatably connected to the discharge end of the suction sleeve 6.

[0021] Among them, the frame 1 is made of high-strength cast iron in one piece. After aging treatment to eliminate internal stress, the overall structure is stable and has strong vibration resistance. It can effectively avoid cutting deviation caused by equipment vibration during laser cutting, and is suitable for the processing needs of high-precision computer shells. Its surface is treated with electrophoretic rust prevention, which is suitable for the workshop production environment.

[0022] like Figure 3 As shown, a motor 401 is fixedly connected to one end of the rotating sleeve 4, and the motor 401 is fixedly connected to the fixed frame 3.

[0023] Motor 401 adopts a servo geared motor with precise and controllable speed and large torque. The rotation angle of the rotating sleeve 4 can be flexibly adjusted according to the cutting path to ensure that the coating treatment mechanism 8 can accurately align with the area to be cut on the computer casing.

[0024] like Figure 4As shown, an electric actuator 501 is fixedly connected to one side of the movable sleeve 5. The electric actuator 501 is fixedly connected to the inner wall of the rotating sleeve 4. An electric actuator 502 is fixedly connected to the inner wall of the movable sleeve 5. The output end of the electric actuator 502 is fixedly connected to the suction sleeve 6.

[0025] Electric actuator 501 is a small servo electric actuator with precise and controllable stroke. It can drive the movable sleeve 5 to move horizontally and linearly along the inner wall of the rotating sleeve 4, adjusting the relative position of the movable sleeve 5 and the rotating sleeve 4, thereby adjusting the horizontal distance of the coating treatment mechanism 8 to adapt to the cutting area of ​​computer housings of different sizes. Electric actuator 502 also uses a servo electric actuator, which enables the coating treatment mechanism 8 to move vertically up and down, realizing the adjustment of the fit between the coating treatment mechanism 8 and the surface of the computer housing. This ensures that the coating is thoroughly removed while avoiding excessive removal that could damage the substrate of the computer housing.

[0026] like Figure 5 As shown, a fan blade 601 is rotatably connected to the inner wall of the suction sleeve 6 near the output end. A driven wheel 602 is fixedly connected to one end of the fan blade 601, and a worm gear 603 is fixedly connected to the other end of the fan blade 601 through the inner wall of the output end. An I-shaped frame 604 is fixedly connected to the output end of the suction sleeve 6. The opposite sides of the upper and lower ends of the I-shaped frame 604 are provided with arc-shaped grooves in a cross structure. The arc-shaped groove at the top is connected to the output end of the suction sleeve 6, and the arc-shaped groove on the lower side is provided in a through structure. A receiving seat 605 is threadedly connected to the outer wall of the bottom end of the I-shaped frame 604, and an annular rack 606 is fixedly connected to the upper side of the bottom end of the I-shaped frame 604.

[0027] The fan blade 601 is made of high-strength engineering plastic in one piece. The blade has a streamlined design and can generate strong suction force to quickly suck the particles generated by coating removal into the suction sleeve 6 and transport them to the coating particle collection mechanism 9. The worm 603 and the worm wheel 902 are tightly meshed, which can transmit the rotational power of the fan blade 601 to the coating particle collection mechanism 9 to realize the linkage of particle collection.

[0028] like Figure 6 As shown, the transmission mechanism 7 includes a transmission shaft 701, a second motor 702 is fixedly connected to the top end of the transmission shaft 701, the second motor 702 is fixedly connected to the inner wall of the suction sleeve 6, and a driving wheel 703 is fixedly connected to the outer wall of the middle part of the transmission shaft 701. The driving wheel 703 and the driven wheel 602 are meshed and transmitted.

[0029] The bottom end of the drive shaft 701 has two symmetrical sliding engagement blocks 704 on both sides. A spring 705 is fixedly connected to the inner end of the engagement block 704. The other end of the spring 705 is fixedly connected to the inner wall of the bottom end of the drive shaft 701. One end of the engagement block 704 has an inclined surface.

[0030] The snap-fit ​​block 704 is made of hard alloy steel with a polished surface. It slides smoothly with the groove at the bottom of the drive shaft 701 without any jamming. Its beveled design makes it easy to snap the snap-fit ​​sleeve 802 into place quickly and also makes it easy to disassemble.

[0031] like Figure 7 As shown, the coating treatment mechanism 8 includes a grinding shaft 801, and a snap-fit ​​sleeve 802 is fixedly connected to the top end of the grinding shaft 801. The inner wall of the snap-fit ​​sleeve 802 is movably snapped into the bottom end of the transmission shaft 701 and the end of the snap-fit ​​block 704 with an inclined surface.

[0032] The grinding shaft 801 is made of cemented carbide and has been hardened. It has high hardness and strong wear resistance, and can quickly and evenly remove the coating on the surface of the computer case without damaging the substrate.

[0033] By setting up a coating treatment mechanism 8, the transmission mechanism 7 can drive the grinding shaft 801 to rotate, which can effectively remove the coating in the area to be cut before cutting, ensuring that the laser directly contacts the substrate, improving the cutting accuracy and quality, and reducing cutting spots or burrs caused by the coating. At the same time, the coating treatment mechanism 8 can be quickly replaced according to the width of the cutting path or the wear of the grinding shaft 801, so that the equipment can adapt to different thicknesses and types of coatings, broadening the application range of the equipment, and making the laser cutting equipment for high-precision computer shell production have higher cutting quality and production efficiency. like Figure 8 As shown, the coating particle collection mechanism 9 includes a rotating frame 901. One end of the rotating frame 901 extends through the top of the I-shaped frame 604 to the outside and is fixedly connected to a worm gear 902. The worm gear 902 meshes with the worm 603 for transmission. Multiple filter tubes 903 are fixedly connected to the rotating frame 901 in a ring structure. The upper and lower ends of the filter tubes 903 are respectively slidably engaged with the inner walls of the upper and lower ends of the I-shaped frame 604.

[0034] Multiple L-shaped rods 904 are rotatably connected to the rotating frame 901 in a ring structure. A gear 905 is fixedly connected to the bottom end of the L-shaped rod 904. The gear 905 meshes with the ring rack 606 for transmission. Multiple contact rods 906 are slidably connected to the rotating frame 901 in a ring structure. A spring 907 is fixedly connected between the bottom end of the contact rod 906 and the rotating frame 901. One end of the contact rod 906 is in slidable contact with the outer wall of the filter tube 903, and the other end of the contact rod 906 is in slidable contact with the top end of the L-shaped rod 904.

[0035] L-shaped rods 904 are made of hard aluminum alloy and are the same number as filter tubes 903. Spring 907 is a small compression spring with a stable elastic coefficient. It can continuously strike the filter tubes 903 while the rotating frame 901 is rotating, so that the filtered material in the filter tubes 903 can automatically fall into the receiving seat 605 and complete automatic cleaning without manual intervention.

[0036] Working principle: Start the motor 401 at one end of the rotating sleeve 4. The rotation angle of the rotating sleeve 4 on the fixed frame 3 can be flexibly adjusted according to the cutting path to ensure that the coating treatment mechanism 8 can be accurately aligned with the area to be cut on the computer shell. Start the electric push rod 501 on one side of the movable sleeve 5 to drive the movable sleeve 5 to move horizontally along the inner wall of the rotating sleeve 4, adjust the relative position of the movable sleeve 5 and the rotating sleeve 4, and thus adjust the horizontal distance of the coating treatment mechanism 8 to adapt to the area to be cut on computer shells of different sizes. Start the electric push rod 502 on the inner wall of the movable sleeve 5 to drive the suction sleeve 6 to move vertically up and down, and thus drive the transmission mechanism 7 and the coating treatment mechanism 8 to move synchronously, so as to adjust the fit between the coating treatment mechanism 8 and the surface of the computer shell, ensuring that the coating is thoroughly removed while avoiding excessive removal that damages the substrate of the computer shell, and completing the initial positioning of the equipment.

[0037] After positioning is completed, the motor 702 in the transmission mechanism 7 is started, driving the transmission shaft 701 to rotate inside the suction sleeve 6. The driving wheel 703 on the outer wall of the middle part of the transmission shaft 701 rotates synchronously with the transmission shaft 701 and meshes with the driven wheel 602 inside the suction sleeve 6; at the same time, the bottom end of the transmission shaft 701 drives the coating treatment mechanism 8 to rotate synchronously, which can quickly and evenly remove the coating on the surface of the computer shell. The inclined design of the snap-fit ​​block 704 can be used for quick disassembly and installation, expanding the application range of the equipment.

[0038] While the transmission mechanism 7 drives the coating treatment mechanism 8 to remove the coating, the driving wheel 703 meshes with the driven wheel 602, driving the fan blade 601 to rotate on the inner wall of the suction sleeve 6 near the output end. The particles generated during coating removal are quickly sucked into the suction sleeve 6 and transported to the coating particle collection mechanism 9. The worm 603, fixedly connected to the other end of the fan blade 601, meshes tightly with the worm wheel 902, transmitting the rotational power of the fan blade 601 to the coating particle collection mechanism 9, thus achieving coordinated particle collection.

[0039] The coating particles are conveyed by the suction sleeve 6 to the I-shaped frame 604 fixedly connected to its output end. Through the arc-shaped groove at the top of the I-shaped frame 604, which connects to the output end of the suction sleeve 6, the particles enter the filter tube 903 on the rotating frame 901. The upper and lower ends of the filter tube 903 are slidably fitted with the inner walls of the upper and lower ends of the I-shaped frame 604, respectively, to filter the coating particles. Simultaneously, the worm gear 603 drives the worm wheel 902 to rotate, which in turn drives the rotating frame 901 to rotate. When the rotating frame 901 rotates, the gear 905 fixedly connected to the bottom end of the L-shaped rod 904 meshes with the annular rack 606 fixedly connected to the upper side of the bottom end of the I-shaped frame 604, causing the L-shaped rod 904 to rotate itself. The top end of the L-shaped rod 904 slides into contact with the other end of the contact rod 906, pushing the contact rod 906 to slide on the rotating frame 901. The spring 907, which is fixedly connected between the bottom end of the contact rod 906 and the rotating frame 901, is a small compression spring. When the rotating frame 901 rotates, it drives one end of the contact rod 906 to continuously strike the filter tube 903, so that the filtered material in the filter tube 903 automatically falls into the receiving seat 605 threaded on the bottom outer wall of the I-shaped frame 604, completing the automatic cleaning of the filter tube 903 without manual intervention.

[0040] After the coating process is completed, the treated casing is moved under the laser cutter 2. The laser cutter 2 is then activated and laser-cuts the computer casing according to the preset cutting path.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A laser cutting device for producing high-precision computer casings, comprising a frame (1), characterized in that: A laser cutter (2) is installed on the frame (1). A fixed frame (3) is installed and fixed on one side of the frame (1). A rotating sleeve (4) is rotatably connected to the fixed frame (3). A movable sleeve (5) is provided on one side of the rotating sleeve (4). A suction sleeve (6) is provided below the movable sleeve (5). A transmission mechanism (7) is rotatably connected inside the suction sleeve (6). A coating treatment mechanism (8) is installed at one end of the transmission mechanism (7). A coating particle collection mechanism (9) is rotatably connected to the discharge end of the suction sleeve (6).

2. The laser cutting equipment for producing high-precision computer casings according to claim 1, characterized in that: One end of the rotating sleeve (4) is fixedly connected to a motor (401), and the motor (401) is fixedly connected to the fixing frame (3).

3. The laser cutting equipment for producing high-precision computer casings according to claim 1, characterized in that: An electric push rod (501) is fixedly connected to one side of the movable sleeve (5). The electric push rod (501) is fixedly connected to the inner wall of the rotating sleeve (4). An electric push rod (502) is fixedly connected to the inner wall of the movable sleeve (5). The output end of the electric push rod (502) is fixedly connected to the suction sleeve (6).

4. The laser cutting equipment for producing high-precision computer casings according to claim 1, characterized in that: The suction sleeve (6) is rotatably connected to a fan blade (601) near the inner wall of the output end. One end of the fan blade (601) is fixedly connected to a driven wheel (602). The other end of the fan blade (601) extends through the inner wall of the output end to the outside and is fixedly connected to a worm gear (603). The output end of the suction sleeve (6) is fixedly connected to an I-shaped frame (604). The opposite sides of the upper and lower ends of the I-shaped frame (604) are provided with arc-shaped grooves in a cross structure. The arc-shaped groove at the top end is connected to the output end of the suction sleeve (6), and the arc-shaped groove on the lower side is provided in a through structure. The outer wall of the bottom end of the I-shaped frame (604) is threadedly connected to a receiving seat (605). The upper side of the bottom end of the I-shaped frame (604) is fixedly connected to an annular rack (606).

5. The laser cutting equipment for producing high-precision computer casings according to claim 4, characterized in that: The transmission mechanism (7) includes a transmission shaft (701), a motor (702) is fixedly connected to the top of the transmission shaft (701), the motor (702) is fixedly connected to the inner wall of the suction sleeve (6), and a drive wheel (703) is fixedly connected to the outer wall of the middle part of the transmission shaft (701). The drive wheel (703) and the driven wheel (602) are meshed and transmitted.

6. The laser cutting equipment for producing high-precision computer casings according to claim 5, characterized in that: The bottom end of the drive shaft (701) has two symmetrical sliding engagement blocks (704) on both sides. A spring (705) is fixedly connected to the inner end of the engagement block (704). The other end of the spring (705) is fixedly connected to the inner wall of the bottom end of the drive shaft (701). One end of the engagement block (704) has an inclined surface.

7. The laser cutting equipment for producing high-precision computer casings according to claim 6, characterized in that: The coating treatment mechanism (8) includes a grinding shaft (801), and a snap-fit ​​sleeve (802) is fixedly connected to the top end of the grinding shaft (801). The inner wall of the snap-fit ​​sleeve (802) is movably snapped into the bottom end of the transmission shaft (701) and the end of the snap-fit ​​block (704) with an inclined surface.

8. The laser cutting equipment for producing high-precision computer casings according to claim 4, characterized in that: The coating particle collection mechanism (9) includes a rotating frame (901). One end of the rotating frame (901) extends through the top of the I-shaped frame (604) to the outside and is fixedly connected to a worm gear (902). The worm gear (902) meshes with the worm (603) for transmission. Multiple filter tubes (903) are fixedly connected to the rotating frame (901) in a ring structure. The upper and lower ends of the filter tubes (903) are respectively slidably engaged with the inner walls of the upper and lower ends of the I-shaped frame (604).

9. The laser cutting equipment for producing high-precision computer casings according to claim 8, characterized in that: The rotating frame (901) is rotatably connected with multiple L-shaped rods (904) in a ring structure. A gear (905) is fixedly connected to the bottom end of the L-shaped rod (904). The gear (905) meshes with a ring rack (606) for transmission. The rotating frame (901) is slidably connected with multiple contact rods (906) in a ring structure. A spring (907) is fixedly connected between the bottom end of the contact rod (906) and the rotating frame (901). One end of the contact rod (906) is slidably in contact with the outer wall of the filter tube (903), and the other end of the contact rod (906) is slidably in contact with the top end of the L-shaped rod (904).

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