Wire harness sleeve laser cutting mechanism

Abstract

The invention discloses a wire harness sleeve laser cutting mechanism, which relates to the wire harness sleeve laser cutting technology and comprises a cutting rack and a laser cutting table fixedly mounted behind the top surface of the cutting rack, laser cutters are arranged on the left side and the right side of the lower portion of the interior of the laser cutting table correspondingly, and the laser cutters slide in the cutting rack to achieve cutting operation. A positioning mechanism is arranged on the rear portion of the interior of the cutting rack. The rear end of the inner supporting sleeve is of an inclined plane structure, so that a wiring harness sleeve can be sleeved conveniently; a traction mechanism is arranged in the front of the interior of the cutting rack and comprises a traction clamping jaw. According to the wire harness sleeve laser cutting mechanism, the wire harness sleeve is internally supported through the inner supporting sleeve in the cutting rack, the traction clamping jaw assists in clamping the wire harness sleeve to move and fix the length, meanwhile, the laser cutter sucks smoke through the smoke removing mechanism during cutting, and then the cutting efficiency and the cutting yield are improved in an assisting mode.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology for wire harness sleeves, specifically to a laser cutting mechanism for wire harness sleeves. Background Technology

[0002] Wire harness tubing is a tubular material used to wrap and protect wires, cables, or wire harnesses, serving to insulate, protect, and manage cables. This type of wire harness is mainly used in automotive wiring, mechanical equipment wiring, etc. Wire harness tubing primarily prevents wires from being worn, squeezed, or pulled, isolates them from moisture, dust, oil, or corrosive substances, and extends cable life. At the same time, wire harness tubing can organize messy cables, achieving orderly wiring, improving appearance, and reducing safety hazards. This type of wire harness tubing is mainly made of flexible plastic or woven fabric. Depending on the required length of the wire harness to be protected, the wire harness tubing needs to be cut to a fixed length using laser cutting.

[0003] The invention disclosed in CN114769905B is a laser cutting device and method for metal jacket tubes of optical fiber workpieces. It includes a cutting section, a housing section, a fixing section, a stop section, and a feeding section. The feeding section is located inside the housing section, the fixing section is located at the bottom of the cutting section, and the stop section is located at the rear end of the fixing section. The feeding section includes a sliding component, a driving component, and a clamping component. The clamping component is located inside the sliding component, and the driving component is located on one side of the sliding component. The driving component is hinged to the sliding component. This invention solves the problems of existing cutting equipment requiring manual assistance for feeding and unloading, unstable fixing of the tube material, resulting in uneven cross-sections and low work efficiency.

[0004] The invention disclosed in CN119566565A presents a cutting device and method for hot-melt braided tubing. A laser cutting mechanism is positioned above a pressing mechanism and a separating mechanism to cut the hot-melt braided tubing immediately adjacent to the flattened portion. The separating mechanism is used to separate the cut hot-melt braided tubing. This invention uses a pressing mechanism to locally flatten the hot-melt braided tubing, preventing it from shifting during laser cutting. Finally, the separating mechanism eliminates post-cut adhesion, ensuring product quality.

[0005] However, the laser cutting mechanism for the wire harness sleeve disclosed above still has the following problems in actual use: the laser cutting component cuts the positioned wire harness sleeve, but this type of wire harness sleeve is mainly characterized by non-rigid structure. During the cutting process, it is prone to bending and misalignment due to the pressure of the equipment, which cannot guarantee the flatness of the cut end face of the wire harness sleeve. At the same time, the end face of the cut wire harness sleeve melts and is prone to sticking to the positioning component, affecting the material cutting and subsequent cutting operations.

[0006] Therefore, we propose a laser cutting mechanism for wire harness sleeves to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a laser cutting mechanism for wire harness sleeves, which solves the problems of existing laser cutting components for cutting wire harness sleeves after positioning. However, such wire harness sleeves are mainly non-rigid structures, which are prone to bending and misalignment under equipment pressure during the cutting process, making it impossible to guarantee the flatness of the cut end face of the wire harness sleeve. At the same time, the end face of the cut wire harness sleeve melts and easily sticks to the positioning component, affecting the unloading and subsequent cutting operations.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a wire harness sleeve laser cutting mechanism, comprising a cutting frame and a laser cutting table fixedly installed behind the top surface of the cutting frame; The laser cutting table has laser cutters installed on both the lower left and right sides inside, and the laser cutters slide inside the cutting frame to perform the cutting operation. A positioning mechanism is provided at the rear of the inside of the cutting frame, and the positioning mechanism includes a positioning base plate, and an inner support sleeve is provided on the top surface of the positioning base plate. The rear end of the inner support sleeve has a sloping structure to facilitate the installation of the wire harness sleeve, and the lower end of the wire harness sleeve has an open structure. The cutting frame is equipped with a traction mechanism at the front, and the traction mechanism includes traction claws, which clamp and pull the wire harness sleeve.

[0009] Preferably, the positioning mechanism includes a loading base plate, which is bolted to the top surface of the positioning base plate, and the lower end of the inner support sleeve included in the positioning mechanism is bolted at equal intervals to the top surface of the loading base plate.

[0010] Preferably, the positioning mechanism includes an inner support sleeve with a through groove at its front end, and the through groove is fitted by a wire harness sleeve so that the laser cutter can completely cut and separate the wire harness sleeve.

[0011] Preferably, the traction mechanism includes a traction base plate, which is fixedly installed inside the front of the cutting machine frame. A traction slide plate is slidably installed on the top surface of the traction base plate, and the lower end of the traction gripper is fixedly installed on the top surface of the traction slide plate. The traction gripper corresponds one-to-one with the inner support sleeve.

[0012] Preferably, the traction mechanism includes a traction cylinder, which is fixedly installed at the lower end of the traction gripper. The telescopic part at the upper end of the traction cylinder is fitted and connected to the upper end of the traction gripper. The upper and lower ends of the traction gripper are connected to each other by a traction spring, and the traction cylinder is connected to the air pump.

[0013] Preferably, the traction mechanism includes a traction bracket, which is fixedly installed on the front and rear sides of the rear end of the top surface of the traction base plate, and the upper end of the traction bracket extends to the left and right ends of the cutting frame, and an abutment wedge is fixedly installed on the upper end of the traction bracket.

[0014] Preferably, the traction mechanism includes a feeding plate, which is slidably installed between the positioning base plate and the traction base plate. The outer end of the feeding plate slides through the traction slide rod via a return spring. The traction slide rod is fixedly installed on the left and right sides inside the cutting frame. The outer end of the feeding plate is attached to the bottom surface of the abutting inclined block for sliding downward after cutting to squeeze the wire harness sleeve out.

[0015] Preferably, the top surface of the laser cutting table is provided with a smoke removal mechanism, and the smoke removal mechanism includes a negative pressure sleeve fixedly installed on the left and right sides of the top surface of the laser cutting table, and a sealing plug rod is slidably installed on the inner end of the negative pressure sleeve, and the lower end of the sealing plug rod is fixedly connected to the upper end of the laser cutter, and a smoke extraction nozzle is sleeved on the outer side of the laser cutter.

[0016] Preferably, the smoke removal mechanism includes a filter purifier, which is fixedly installed behind the top surface of the laser cutting table, and the filter purifier and the outer end of the negative pressure sleeve are interconnected through a one-way exhaust hose.

[0017] Preferably, the smoke removal mechanism includes a one-way suction hose, the lower end of which is connected to the upper end of the smoke suction nozzle, and the upper end of which is connected to the inner part of the outer end of the negative pressure sleeve. The negative pressure is transmitted to the smoke suction nozzle through the one-way suction hose to draw in the cut smoke.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the wire harness sleeve laser cutting mechanism internally supports the wire harness sleeve through the inner support sleeve inside the cutting frame, and the traction gripper assists in clamping the wire harness sleeve and moving it to a fixed length. At the same time, the laser cutter extracts the smoke through the smoke removal mechanism during cutting, thereby helping to improve cutting efficiency and cutting yield. The specific details are as follows: 1. By fitting the corresponding wire harness sleeve from back to front onto the outside of the inner support sleeve, the opening at the bottom of the wire harness sleeve allows it to pass through the inner support sleeve, and the rear inclined structure improves the smoothness of fitting when contacting the inner support sleeve, while the front end of the wire harness sleeve completely covers the inner support sleeve, so as to carry out subsequent traction and length-fixed operation.

[0019] 2. The traction slide plate above the traction base plate drives the traction gripper to slide backward. The upper and lower sides of the rear end of the traction gripper move to the inner and outer sides of the front end of the traction sleeve, respectively. Then, the air pump outside the cutting frame operates, sending pressure to the inside of the traction cylinder. Its upper telescopic part touches the upper end of the traction gripper upward, causing the upper and lower sides of the rear end of the traction gripper to merge and clamp the contact wire harness sleeve. Then, the traction slide plate drives the traction gripper and the clamped wire harness sleeve to slide forward synchronously, thereby determining the required cutting length of the wire harness sleeve.

[0020] 3. The laser cutter inside the laser cutting table slides inward synchronously, driving the sealing plug rod to slide towards the inner end of the negative pressure sleeve, thereby increasing the cavity of the negative pressure sleeve to create a negative pressure state. Then, the negative pressure of the negative pressure sleeve is transmitted to the inside of the flue gas suction nozzle through the one-way suction hose, assisting in the suction of the flue gas generated when the laser cutter moves and cuts.

[0021] Furthermore, after the cutting operation is completed, the laser cutter moves outward to reset, and drives the sealing plug rod to squeeze the flue gas inside the negative pressure sleeve, which is then transported to the interior of the filter purifier for purification and filtration through the one-way exhaust hose.

[0022] Furthermore, the laser cutter emits a vertically downward laser beam that penetrates the through-slot at the front end of the inner support sleeve inside the wire harness sleeve, cutting the wire harness sleeve. The wire harness sleeve, which is open at the bottom, is not blocked by the inner support sleeve, thus avoiding incomplete cutting that could affect separation.

[0023] 4. After cutting, the wire harness sleeve is separated by the expansion of the traction gripper. Part of the wire harness sleeve adheres to the traction gripper and is pressed by the anti-clamping block under the traction bracket when moving backward. This causes the cutting plate to slide downward and then abut against the wire harness sleeve that has not been separated, thereby assisting in the separation of the wire harness sleeve from the traction gripper.

[0024] Furthermore, when the traction gripper clamps the wire harness sleeve again, it will still cause the feeding plate to slide downwards and make contact again. This time, the wire harness sleeve is limited by the traction gripper, which helps to detect the firmness of the wire harness sleeve being clamped, thereby avoiding misalignment that may affect the cutting. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the traction slide plate after the present invention has slid. Figure 3 This is a schematic diagram of the wire harness sleeve installation structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a three-dimensional structural schematic diagram of the laser cutter of the present invention; Figure 6 This is a three-dimensional structural diagram of the inner support sleeve of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 8 This is a three-dimensional structural diagram of the material feeding plate of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point C; Figure 10 This is a schematic diagram of the structure of the traction slide plate in its initial state according to the present invention; Figure 11 For the present invention Figure 10 Enlarged structural diagram at point D.

[0026] In the diagram: 1. Cutting frame; 2. Laser cutting table; 3. Laser cutter; 4. Positioning base plate; 5. Inner support sleeve; 6. Wire harness sleeve; 7. Traction gripper; 8. Loading base plate; 9. Through-slot; 10. Traction base plate; 11. Traction slide plate; 12. Traction cylinder; 13. Traction spring; 14. Traction bracket; 15. Anti-collision wedge; 16. Unloading pressure plate; 17. Return spring; 18. Traction slide bar; 19. Negative pressure sleeve; 20. Sealing plug rod; 21. Flue gas suction nozzle; 22. Filter purifier; 23. One-way exhaust hose; 24. One-way suction hose; 25. Air pump. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-11 The present invention provides the following technical solution: Example 1: To address the problems existing in the laser cutting of the wire harness sleeve 6, this example discloses the following technical solution: a laser cutting mechanism for a wire harness sleeve, wherein a positioning mechanism is provided at the rear of the cutting frame 1, and the positioning mechanism includes a positioning base plate 4, and an inner support sleeve 5 is provided on the top surface of the positioning base plate 4; the rear end of the inner support sleeve 5 has a sloping structure to facilitate the fitting of the wire harness sleeve 6, and the lower end of the wire harness sleeve 6 has an open structure; the positioning mechanism includes a loading base plate 8, and the loading base plate 8 is bolted to the top surface of the positioning base plate 4, and the lower end of the inner support sleeve 5 included in the positioning mechanism is bolted at equal intervals to the top surface of the loading base plate 8; the front end of the inner support sleeve 5 included in the positioning mechanism has a through groove 9, and the through groove 9 is fitted through the wire harness sleeve 6 so that the laser cutter 3 can completely cut and separate the wire harness sleeve 6.

[0029] like Figures 6-7 As shown, when the wire harness sleeve 6 needs to be cut, the end of the wire harness sleeve 6 is first inserted into the outer wall of the inner support sleeve 5 inside the upper part of the cutting frame 1. The lower end of the wire harness sleeve 6 has an open structure so that after contacting the inclined structure at the rear end of the inner support sleeve 5, it is sleeved on the outer wall of the inner support sleeve 5. At the same time, the wire harness sleeve 6 with the lower end open can slide on the outer wall of the inner support sleeve 5. Then, the front end of the wire harness sleeve 6 extends to the outside of the front end of the inner support sleeve 5 and wraps the through groove 9 so as to carry out subsequent laser cutting.

[0030] Example 2: In order to solve the problems existing in the laser cutting of the wire harness sleeve 6, this example discloses the following technical solution: a traction mechanism is provided at the front of the inside of the cutting frame 1, and the traction mechanism includes a traction claw 7, and the traction claw 7 clamps and pulls the wire harness sleeve 6; the traction mechanism includes a traction base plate 10, and the traction base plate 10 is fixedly installed at the front of the inside of the cutting frame 1, and a traction slide plate 11 is slidably installed on the top surface of the traction base plate 10, and the lower end of the traction claw 7 is fixedly installed on the top surface of the traction slide plate 11, and the traction claw 7 corresponds one-to-one with the inner support sleeve 5.

[0031] The traction mechanism includes a traction cylinder 12, which is fixedly installed at the lower end of the traction gripper 7. The telescopic part of the upper end of the traction cylinder 12 is attached to the upper end of the traction gripper 7. The upper and lower ends of the traction gripper 7 are connected to each other by a traction spring 13. At the same time, the traction cylinder 12 is connected to the air pump 25.

[0032] like Figures 8-9As shown, the traction slide plate 11 inside the cutting frame 1 is installed above the traction base plate 10. The screw inside the traction base plate 10 drives the threaded traction slide plate 11 to slide backward. The traction slide plate 11 drives the traction jaws 7 above to move towards the front end of the wire harness sleeve 6. After the rear end of the traction jaws 7 is inserted into the wire harness sleeve 6, the air pump 25 above the cutting frame 1 supplies air to the traction cylinder 12 to drive the upper and lower ends of the traction jaws 7 to close together and clamp the front end of the wire harness sleeve 6. Then, the traction slide plate 11 drives the traction jaws 7 and the clamped wire harness sleeve 6 to slide forward, thereby driving the wire harness sleeve 6 to the required cutting length. At the same time, the traction jaws 7 position the wire harness sleeve 6 to prevent misalignment and bending during the cutting process.

[0033] Example 3: To solve the problems existing in the laser cutting of the wire harness sleeve 6, this example discloses the following technical solution, including a cutting frame 1 and a laser cutting table 2 fixedly installed behind the top surface of the cutting frame 1; wherein, laser cutters 3 are provided on both the lower left and right sides of the inside of the laser cutting table 2, and the laser cutters 3 slide inside the cutting frame 1 to perform cutting operations; a smoke removal mechanism is provided on the top surface of the laser cutting table 2, and the smoke removal mechanism includes a negative pressure sleeve 19 fixedly installed on the left and right sides of the top surface of the laser cutting table 2, and a sealing plug rod 20 is slidably installed on the inner end of the negative pressure sleeve 19, and the lower end of the sealing plug rod 20 is fixedly connected to the upper end of the laser cutter 3, and a smoke extraction nozzle 21 is sleeved on the outer side of the laser cutter 3.

[0034] The smoke removal mechanism includes a filter purifier 22, which is fixedly installed behind the top surface of the laser cutting table 2. The filter purifier 22 and the outer end of the negative pressure sleeve 19 are interconnected through a one-way exhaust hose 23. The smoke removal mechanism also includes a one-way suction hose 24, the lower end of which is connected to the upper end of the smoke suction nozzle 21, and the upper end of which is connected to the inner part of the outer end of the negative pressure sleeve 19. The negative pressure is transmitted through the one-way suction hose 24 to the smoke suction nozzle 21 to draw in the cut smoke.

[0035] like Figures 3-5 As shown, when laser cutting is performed on the wire harness sleeve 6, the laser cutters 3 on the left and right sides inside the laser cutting table 2 work and slide towards the center simultaneously, thereby sending the laser beam downward to the outer wall of the wire harness sleeve 6, penetrating the through groove 9 at the front end of the inner support sleeve 5 inside the wire harness sleeve 6, and cutting the wire harness sleeve 6.

[0036] Furthermore, during the movement of the laser cutter 3, the fixedly connected sealing plug rod 20 is moved inward, and the sealing plug rod 20 inside the negative pressure sleeve 19 increases its cavity space. At this time, the cavity space is in a negative pressure state, and air is drawn from the through-connected one-way suction hose 24 and the flue gas suction nozzle 21. The flue gas suction nozzle 21 corresponds to the end of the wire harness sleeve 6 being cut below, thereby drawing in the fumes generated during cutting, thus avoiding affecting the working environment.

[0037] Furthermore, after the laser cutter 3 completes the cutting operation, it drives the sealing plug rod 20 to slide outward, thereby transporting the flue gas inside the negative pressure sleeve 19 to the filter purifier 22 through the through-connected one-way exhaust hose 23, which helps to filter and purify the flue gas from the laser cutting.

[0038] Example 4: To solve the problems existing in the laser cutting of the wire harness sleeve 6, this example discloses the following technical solution: The traction mechanism includes a traction bracket 14, which is fixedly installed on the front and rear sides of the rear end of the top surface of the traction base plate 10, and the upper end of the traction bracket 14 extends to the left and right ends of the cutting frame 1. The upper end of the traction bracket 14 is fixedly installed with an abutting wedge 15. The traction mechanism includes a feeding plate 16, which is slidably installed between the positioning base plate 4 and the traction base plate 10. The outer end of the feeding plate 16 slides through the traction slide rod 18 through the return spring 17. The traction slide rod 18 is fixedly installed on the left and right sides inside the cutting frame 1. At the same time, the outer end of the feeding plate 16 is attached to the bottom surface of the abutting wedge 15 for sliding downward after cutting to squeeze the wire harness sleeve 6 out.

[0039] like Figures 10-11 As shown, after the wire harness sleeve 6 is cut, the front end of the wire harness sleeve 6 is originally held by the traction gripper 7. After the cutting operation, the traction gripper 7 is released to help release the wire harness sleeve 6 so that the cut wire harness sleeve 6 can fall into the cutting frame 1 to complete the unloading. The partially melted wire harness sleeve 6 cannot be separated from the traction gripper 7.

[0040] At this time, the traction slide plate 11 drives the traction gripper 7 and the unseparated wire harness sleeve 6 to move backward. When the traction slide plate 11 drives the traction bracket 14 at the rear end to move, the lower end of the abutting inclined block 15 abuts against the unloading pressure plate 16, so that the unloading pressure plate 16 squeezes the reset spring 17 to descend along the traction slide bar 18 and abuts against the cut wire harness sleeve 6 to separate it from the traction gripper 7, thereby assisting the unloading. At the same time, after the traction gripper 7 clamps the wire harness sleeve 6, it slides forward. At this time, it will still abut against the unloading pressure plate 16 to make it slide downward, and then abut against the clamped wire harness sleeve 6 to check the clamping stability, so as to prevent the wire harness sleeve 6 from loosening and affecting the laser cutting operation.

[0041] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A laser cutting mechanism for wire harness sleeves, comprising a cutting frame (1) and a laser cutting table (2) fixedly installed behind the top surface of the cutting frame (1). in, Laser cutters (3) are installed on both the lower left and right sides of the inside of the laser cutting table (2), and the laser cutters (3) slide inside the cutting frame (1) to perform cutting operations. Its characteristic is that it further includes: The cutting frame (1) is provided with a positioning mechanism at the rear of its interior, and the positioning mechanism includes a positioning base plate (4), and the top surface of the positioning base plate (4) is provided with an inner support sleeve (5). The rear end of the inner support sleeve (5) has a sloping structure to facilitate the installation of the wire harness sleeve (6), and the lower end of the wire harness sleeve (6) has an open structure. The cutting frame (1) is provided with a traction mechanism at the front inside, and the traction mechanism includes a traction gripper (7), and the traction gripper (7) clamps and pulls the wire harness sleeve (6).

2. The wire harness sleeve laser cutting mechanism according to claim 1, characterized in that: The positioning mechanism includes a loading base plate (8), which is bolted to the top surface of the positioning base plate (4), and the lower end of the inner support sleeve (5) included in the positioning mechanism is bolted to the top surface of the loading base plate (8) at equal intervals.

3. The wire harness sleeve laser cutting mechanism according to claim 2, characterized in that: The positioning mechanism includes an inner support sleeve (5) with a through groove (9) at the front end, and the through groove (9) is fitted through a wire harness sleeve (6) so that the laser cutter (3) can completely cut and separate the wire harness sleeve (6).

4. The wire harness sleeve laser cutting mechanism according to claim 3, characterized in that: The traction mechanism includes a traction base plate (10), which is fixedly installed inside the front of the cutting frame (1). A traction slide plate (11) is slidably installed on the top surface of the traction base plate (10), and the lower end of the traction claw (7) is fixedly installed on the top surface of the traction slide plate (11). The traction claw (7) corresponds one-to-one with the inner support sleeve (5).

5. The wire harness sleeve laser cutting mechanism according to claim 4, characterized in that: The traction mechanism includes a traction cylinder (12), which is fixedly installed at the lower end of the traction gripper (7). The telescopic part of the upper end of the traction cylinder (12) is attached to the upper end of the traction gripper (7). The upper and lower ends of the traction gripper (7) are connected to each other by a traction spring (13). At the same time, the traction cylinder (12) is connected to the air pump (25).

6. The laser cutting mechanism for wire harness sleeves according to claim 1, characterized in that: The traction mechanism includes a traction bracket (14), which is fixedly installed on the front and rear sides of the top surface of the traction base plate (10), and the upper end of the traction bracket (14) extends to the left and right ends of the cutting frame (1), and the upper end of the traction bracket (14) is fixedly installed with an abutting wedge (15).

7. A laser cutting mechanism for wire harness sleeves according to claim 6, characterized in that: The traction mechanism includes a feeding plate (16), which is slidably installed between the positioning base plate (4) and the traction base plate (10). The outer end of the feeding plate (16) slides through the traction slide rod (18) via a reset spring (17). The traction slide rod (18) is fixedly installed on the left and right sides inside the cutting frame (1). At the same time, the outer end of the feeding plate (16) is attached to the bottom surface of the contacting inclined block (15) for sliding downward after cutting to squeeze the wire harness sleeve (6) out.

8. The laser cutting mechanism for wire harness sleeves according to claim 1, characterized in that: The top surface of the laser cutting table (2) is provided with a smoke removal mechanism, and the smoke removal mechanism includes a negative pressure sleeve (19) fixedly installed on the left and right sides of the top surface of the laser cutting table (2). A sealing plug rod (20) is slidably installed on the inner end of the negative pressure sleeve (19), and the lower end of the sealing plug rod (20) is fixedly connected to the upper end of the laser cutter (3). A smoke extraction nozzle (21) is sleeved on the outer side of the laser cutter (3).

9. A laser cutting mechanism for wire harness sleeves according to claim 8, characterized in that: The smoke removal mechanism includes a filter purifier (22), which is fixedly installed behind the top surface of the laser cutting table (2), and the filter purifier (22) and the outer end of the negative pressure sleeve (19) are connected to each other through a one-way exhaust hose (23).

10. A laser cutting mechanism for wire harness sleeves according to claim 9, characterized in that: The smoke removal mechanism includes a one-way suction hose (24), the lower end of which is connected to the upper end of the smoke suction nozzle (21), and the upper end of which is connected to the inner side of the outer end of the negative pressure sleeve (19). The negative pressure is transmitted through the one-way suction hose (24) to the smoke suction nozzle (21) to draw out the cut smoke.

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