Nozzle structure with dust collection function

By setting up an airway connecting the air conduction ring and smoke removal air outlet in the nozzle structure, combined with the lifting and lowering adjustment mechanism, the problem of dust and smoke affecting laser processing is solved, efficient dust removal and precise adjustment are achieved, and processing accuracy and equipment stability are improved.

CN223289195UActive Publication Date: 2025-09-02SUZHOU JIENTAI TECH CO LTD
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Patent Information

Application Number
CN202421939118.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-12
Publication Date
2025-09-02
Estimated Expiration
2034-08-12

AI Technical Summary

Technical Problem

During laser precision cutting or micropore processing, the diffusion of dust and smoke affects the processing effect and pollutes the environment. The concentric adjustment of the nozzle and the material is inconvenient to affect the processing accuracy, and improper control of the nozzle distance affects the blowing effect or causes damage.

Method used

A nozzle structure with dust collection function is designed. By setting an airway communication air conduction ring on the side wall of the nozzle telescopic ring, compressed air blowing effect is optimized, and a smoke removal outlet is set on the nozzle defusing hood to synchronize the dust smoke. At the same time, the distance and position of the nozzle and the material are adjusted by lifting screws and ball head screws.

Benefits of technology

The blowing effect is optimized, dust splash is reduced, laser processing accuracy and product quality are improved, and the stability of optical equipment is protected.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of laser processing application, in particular to a nozzle structure with a dust collection function, which is characterized in that a laser is arranged on one side of a galvanometer, an air passage is arranged on the side wall of a nozzle telescopic ring, an air guide ring is arranged in the nozzle telescopic ring along the circumferential direction of a laser nozzle, the air passage is communicated with the air guide ring, and a nozzle smoke removal cover is arranged on the lower side of the nozzle telescopic ring. A smoke removal extraction opening is formed in the side wall of the nozzle smoke removal cover, the switching limiting plate is arranged to support the nozzle telescopic ring, the air channel is formed in the side wall of the nozzle telescopic ring to communicate with the air guide ring, compressed air is guided to flow to the laser nozzle along the air guide ring through the air channel, and the blowing effect can be optimized; meanwhile, the air guide ring structure can reduce the influence of compressed air on the optical stability of the field lens or the focus lens, the smoke removal extraction opening and an external extraction source are formed in the side wall of the nozzle smoke removal hood, dust smoke generated in the machining process is synchronously extracted through the smoke removal extraction opening in the nozzle smoke removal hood, dust splashing is reduced, and the product machining quality is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of laser processing applications, in particular to a nozzle structure with a dust collection function. Background Art

[0002] During conventional laser precision cutting or laser micro-hole processing, the material is instantly vaporized when the laser interacts with the material, forming dense dust smoke. The diffusion of the dust smoke may block the laser processing path and affect the laser processing effect, or the dust smoke may splash and pollute the processing environment, resulting in the subsequent laser processing accuracy being affected. In addition, the laser head is easily damaged under long-term working conditions. In the use of conventional nozzles, it is inconvenient to adjust the concentricity of the external light path and the cutting nozzle hole, which will affect the laser processing effect due to nozzle cutting and burn the nozzle head. It is inconvenient to control the height of the nozzle from the surface of the processing material, or the blowing effect is poor if the distance is too large, or it is easy to touch the material and dust is concentrated at the nozzle mouth if the distance is too close. Therefore, a nozzle structure with a dust collection function is required. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a nozzle structure with a dust collection function, so as to solve the problem of the influence of dust and smoke on laser processing in the prior art.

[0004] To achieve the above-mentioned and other related purposes, the present invention provides the following technical solutions:

[0005] A nozzle structure with a dust collection function, comprising:

[0006] A galvanometer, wherein a laser is provided on one side of the galvanometer and a nozzle assembly is provided on the lower side of the galvanometer;

[0007] The nozzle assembly includes an adapter limit plate connected to the lower side of the galvanometer, a nozzle expansion ring provided on the lower side of the adapter limit plate, an air channel being provided on the side wall of the nozzle expansion ring, a laser nozzle being provided in the nozzle expansion ring, and an air guide ring being provided in the nozzle expansion ring along the circumference of the laser nozzle, the air channel being connected to the air guide ring;

[0008] The nozzle fume hood is arranged on the lower side of the nozzle telescopic ring, the nozzle fume hood wraps the laser nozzle, and the bottom of the nozzle fume hood is open, and a fume extraction port is opened on the side wall of the nozzle fume hood.

[0009] To implement the above technical solution, a transfer limit plate is provided to support the nozzle telescopic ring, and an air duct is opened on the side wall of the nozzle telescopic ring to connect to the air guide ring. The compressed air is guided through the air duct to flow along the air guide ring to the laser nozzle, which can optimize the blowing effect. At the same time, the air guide ring structure can reduce the impact of compressed gas on the optical stability of the field mirror or the focusing mirror. A smoke removal exhaust port is opened on the side wall of the nozzle fume hood, and an external exhaust source is used to simultaneously extract the dust and smoke generated during the processing through the smoke removal exhaust port on the nozzle fume hood, thereby reducing dust splashing and improving product processing quality.

[0010] In one embodiment of the present invention, a nozzle base is further provided between the nozzle telescopic ring and the adapter limit plate, and the nozzle telescopic ring is slidably connected to the nozzle base in a liftable manner.

[0011] To implement the above technical solution, by connecting the nozzle telescopic ring to the nozzle base in a sliding manner that can be raised and lowered, the laser nozzle can be easily adjusted to the distance between it and the processing material, thereby obtaining the best jetting effect and dust removal effect.

[0012] In one embodiment of the present invention, guide rods arranged in equal parts are provided on the outer wall of the nozzle telescopic ring, and the guide rods extend into the interior of the nozzle base.

[0013] To implement the above technical solution, the provision of the guide rod can prevent the nozzle telescopic ring and the nozzle base from rotating, while at the same time guiding the lifting movement of the nozzle telescopic ring on the nozzle base.

[0014] In one embodiment of the present invention, a nozzle axis plate is provided on the lower side of the nozzle telescopic ring, a positioning groove is provided on the nozzle axis plate, a positioning pin is provided on the bottom end face of the nozzle telescopic ring, the positioning groove is clamped on the positioning pin, and the nozzle axis plate can rotate around the positioning pin.

[0015] To implement the above technical solution, a positioning pin is provided on the bottom end face of the nozzle telescopic ring, which cooperates with the positioning groove on the nozzle axis plate, so that the nozzle axis plate can rotate around the positioning pin, thereby adjusting the horizontal position of the laser nozzle.

[0016] In one embodiment of the present invention, a nozzle sealing plate is provided on the lower side of the nozzle axis plate, and two groups of mutually perpendicular ball head screws are arranged on the nozzle sealing plate. The ball head screws are all threadedly connected to the nozzle sealing plate, and the ball head end of the ball head screw and the nozzle axis plate, when one group of ball head screws is rotated, drive the nozzle sealing plate to rotate around the positioning pin.

[0017] The above technical solution is implemented by using two sets of mutually perpendicular ball screws, and the ball ends of the ball screws are in contact with the nozzle axis plate, so that when one set of ball screws is rotated, the nozzle cover plate can be driven to rotate around the positioning pin, thereby adjusting the horizontal position of the laser nozzle.

[0018] In one embodiment of the present invention, a lifting screw arranged in a vertical direction is provided on the outer wall of the nozzle smoke hood, and the lifting screw is threadedly connected to the nozzle sealing plate. The front end of the lifting screw is connected to the outer wall of the nozzle telescopic ring and is rotatably connected to the nozzle telescopic ring. By rotating the lifting screw, the nozzle telescopic ring is driven to move up and down on the nozzle base.

[0019] To implement the above technical solution, a lifting screw is set. When the height position of the laser nozzle needs to be adjusted, the lifting screw is rotated to drive the nozzle telescopic ring to move up and down on the nozzle base, thereby adjusting the height position of the laser nozzle.

[0020] As described above, the utility model provides a nozzle structure with a dust collection function, which has the following beneficial effects: by setting a transfer limit plate to support the nozzle telescopic ring, an air duct is provided on the side wall of the nozzle telescopic ring to connect to the air guide ring, and the compressed air is guided through the air duct to flow along the air guide ring to the laser nozzle, which can optimize the blowing effect. At the same time, the air guide ring structure can reduce the impact of compressed gas on the optical stability of the field mirror or the focusing mirror. A smoke removal exhaust port is provided on the side wall of the nozzle fume hood, and an external exhaust source is used to simultaneously extract the dust and smoke generated during the processing through the smoke removal exhaust port on the nozzle fume hood, thereby reducing dust splashing and improving product processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Shown is a structural schematic diagram of a nozzle structure with a dust collection function disclosed in an embodiment of the present utility model.

[0022] Figure 2 Shown is a schematic diagram of the airway structure of the nozzle structure with dust collection function disclosed in an embodiment of the present utility model.

[0023] Figure 3 Shown is a schematic diagram of the air guide ring structure of the nozzle structure with dust collection function disclosed in an embodiment of the present utility model.

[0024] Figure 4 Shown is a schematic diagram of the adapter limiting plate structure of the nozzle structure with dust collection function disclosed in an embodiment of the present utility model.

[0025] Figure 5 Display as Figure 4 A partial enlarged view of the figure marked A.

[0026] Component number description

[0027] 1. Galvanometer; 2. Laser; 3. Adapter limit plate; 4. Nozzle expansion ring; 5. Air duct; 6. Laser nozzle; 7. Air guide ring; 8. Nozzle fume hood; 9. Fume extraction port; 10. Nozzle base; 11. Guide rod; 12. Nozzle axis plate; 13. Positioning groove; 14. Positioning pin; 15. Nozzle sealing plate; 16. Ball screw; 17. Lifting screw. DETAILED DESCRIPTION

[0028] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless there is a conflict.

[0029] See also Figures 1 to 5 The utility model provides a nozzle structure with a dust collection function, including a laser 2 provided on one side of a galvanometer 1, a nozzle assembly provided on the lower side of the galvanometer 1, the nozzle assembly including a transfer limit plate 3 connected to the lower side of the galvanometer 1, a nozzle telescopic ring 4 provided on the lower side of the transfer limit plate 3, an air channel 5 is provided on the side wall of the nozzle telescopic ring 4, a laser nozzle 6 is provided in the nozzle telescopic ring 4, and an air guide ring 7 is provided inside the nozzle telescopic ring 4 and along the circumference of the laser nozzle 6, the air channel 5 is connected to the air guide ring 7, a nozzle fume hood 8 is provided on the lower side of the nozzle telescopic ring 4, the nozzle fume hood 8 wraps the laser nozzle 6, and the bottom of the nozzle fume hood 8 is open, and a fume removal exhaust port 9 is provided on the side wall of the nozzle fume hood 8.

[0030] An adapter limit plate 3 is provided to support the nozzle telescopic ring 4, and an air channel 5 is opened on the side wall of the nozzle telescopic ring 4 to connect to the air guide ring 7. The compressed air is guided through the air channel 5 to flow along the air guide ring 7 to the laser nozzle 6, which can optimize the blowing effect. At the same time, the structure of the air guide ring 7 can reduce the impact of the compressed gas on the optical stability of the field mirror or the focusing mirror. A smoke removal exhaust port 9 is opened on the side wall of the nozzle smoke removal hood 8, and the external exhaust source can simultaneously extract the dust and smoke generated during the processing through the smoke removal exhaust port 9 on the nozzle smoke removal hood 8, thereby reducing dust splashing and improving product processing quality.

[0031] A nozzle base 10 is also provided between the nozzle telescopic ring 4 and the adapter limit plate 3. The nozzle telescopic ring 4 is connected to the nozzle base 10 in a sliding manner that can be raised and lowered. By connecting the nozzle telescopic ring 4 to the nozzle base 10 in a sliding manner that can be raised and lowered, the laser nozzle 6 can be easily adjusted to the distance between it and the processing material, thereby obtaining the best jetting effect and dust removal effect.

[0032] Guide rods 11 are arranged equally on the outer wall of the nozzle telescopic ring 4, and extend into the interior of the nozzle base 10. The setting of the guide rods 11 can prevent rotation between the nozzle telescopic ring 4 and the nozzle base 10, while guiding the lifting and lowering movement of the nozzle telescopic ring 4 on the nozzle base 10.

[0033] A nozzle axis plate 12 is provided on the lower side of the nozzle telescopic ring 4, and a positioning groove 13 is provided on the nozzle axis plate 12. A positioning pin 14 is provided on the bottom end face of the nozzle telescopic ring 4, and the positioning groove 13 is clamped on the positioning pin 14, and the nozzle axis plate 12 can rotate around the positioning pin 14. By providing a positioning pin 14 on the bottom end face of the nozzle telescopic ring 4 and cooperating with the positioning groove 13 on the nozzle axis plate 12, the nozzle axis plate 12 can rotate around the positioning pin 14, thereby adjusting the horizontal position of the laser nozzle 6.

[0034] A nozzle sealing plate 15 is provided on the lower side of the nozzle axis plate 12, and two groups of mutually perpendicular ball screws 16 are arranged on the nozzle sealing plate 15. The ball screws 16 are all threadedly connected to the nozzle sealing plate 15, and the ball head end of the ball head screw 16 is in contact with the nozzle axis plate 12. When one group of ball head screws 16 is rotated, the nozzle sealing plate 15 is driven to rotate around the positioning pin 14. Through the two groups of mutually perpendicular ball head screws 16, and the ball head end of the ball head screw 16 is in contact with the nozzle axis plate 12, when one group of ball head screws 16 is rotated, the nozzle sealing plate 15 can be driven to rotate around the positioning pin 14, thereby realizing the adjustment of the horizontal position of the laser nozzle 6.

[0035] A lifting screw 17 arranged in the vertical direction is provided on the outer wall of the nozzle smoke hood 8. The lifting screw 17 is threadedly connected to the nozzle sealing plate 15. The front end of the lifting screw 17 is connected to the outer wall of the nozzle telescopic ring 4 and is rotatably connected to the nozzle telescopic ring 4. By rotating the lifting screw 17, the nozzle telescopic ring 4 is driven to move up and down on the nozzle base 10. By setting the lifting screw 17, when it is necessary to adjust the height position of the laser nozzle 6, by rotating the lifting screw 17, the nozzle telescopic ring 4 is driven to move up and down on the nozzle base 10, thereby adjusting the height position of the laser nozzle 6.

[0036] The utility model supports the nozzle expansion ring by arranging an adapter limit plate, and an air channel is opened on the side wall of the nozzle expansion ring to connect with the air guide ring, which guides the compressed air through the air channel to flow along the air guide ring to the laser nozzle, thereby optimizing the blowing effect. At the same time, the air guide ring structure can reduce the impact of the compressed gas on the optical stability of the field mirror or the focusing mirror. A smoke removal and exhaust port is opened on the side wall of the nozzle fume hood, and an external exhaust source is used to simultaneously extract the dust and smoke generated during the processing through the smoke removal and exhaust port on the nozzle fume hood, thereby reducing dust splashing and improving product processing quality.

[0037] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any equivalent modifications or variations made by persons skilled in the art without departing from the spirit and technical concepts disclosed herein shall be encompassed by the claims of the present invention.

Claims

1. A nozzle structure with dust collection function, characterized in that: include: A galvanometer, wherein a laser is provided on one side of the galvanometer and a nozzle assembly is provided on the lower side of the galvanometer; The nozzle assembly includes an adapter limit plate connected to the lower side of the galvanometer, a nozzle expansion ring provided on the lower side of the adapter limit plate, an air channel being provided on the side wall of the nozzle expansion ring, a laser nozzle being provided in the nozzle expansion ring, and an air guide ring being provided in the nozzle expansion ring along the circumference of the laser nozzle, the air channel being connected to the air guide ring; The nozzle fume hood is arranged on the lower side of the nozzle telescopic ring, the nozzle fume hood wraps the laser nozzle, and the bottom of the nozzle fume hood is open. A fume extraction port is provided on the side wall of the nozzle fume hood, and the fume extraction port is connected to the air guide ring.

2. The nozzle structure with dust collection function according to claim 1, characterized in that: A nozzle base is further provided between the nozzle telescopic ring and the adapter limit plate, and the nozzle telescopic ring is slidably connected to the nozzle base in a liftable manner.

3. The nozzle structure with dust collection function according to claim 1, characterized in that: The outer wall of the nozzle telescopic ring is provided with guide rods arranged in equal parts, and the guide rods extend to the inside of the nozzle base.

4. The nozzle structure with dust collection function according to claim 1, characterized in that: A nozzle axis plate is provided on the lower side of the nozzle telescopic ring, a positioning groove is provided on the nozzle axis plate, a positioning pin is provided on the bottom end surface of the nozzle telescopic ring, the positioning groove is clamped on the positioning pin, and the nozzle axis plate can rotate around the positioning pin.

5. The nozzle structure with dust collection function according to claim 4, characterized in that: A nozzle sealing plate is provided on the lower side of the nozzle axis plate, and two groups of mutually perpendicular ball screws are arranged on the nozzle sealing plate. The ball screws are threadedly connected to the nozzle sealing plate, and the ball end of the ball screw is in contact with the nozzle axis plate. When one group of ball screws is rotated, the nozzle sealing plate is driven to rotate around the positioning pin.

6. The nozzle structure with dust collection function according to claim 1, characterized in that: The nozzle smoke hood outer wall is provided with a lifting screw arranged in the vertical direction, the lifting screw is threadedly connected to the nozzle sealing plate, the front end of the lifting screw is connected to the outer wall of the nozzle telescopic ring, and is rotatably connected to the nozzle telescopic ring. By rotating the lifting screw, the nozzle telescopic ring is driven to move up and down on the nozzle base.