Adjustable servo blow device for laser cutting
By designing an adjustable follow-up air blowing device, the problem of adjusting the air jet range and direction was solved, enabling effective removal of molten metal and residue, and improving the cut quality and efficiency of laser cutting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGMA TECHNOLOGY (WUHAN) CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-29
AI Technical Summary
Existing follow-up blowing devices have difficulty adjusting the air jet range, and the airflow range is too small or the direction is deviated, which cannot effectively blow away molten metal or material residue, resulting in rough cuts and increased burrs.
An adjustable follow-up blowing device was designed, comprising a mounting sleeve, a connecting ring, a rotating sleeve, an exhaust pipe, a bellows, and a nozzle. The range and angle of the nozzle are adjusted through a bearing and motor drive system, thereby increasing the jet range and coverage area.
It enables flexible adjustment of the nozzle, effectively blowing away molten metal and material residue, thus improving cutting quality and efficiency.
Smart Images

Figure CN224294950U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air blowing device technology, and more specifically, to an adjustable follow-up air blowing device for laser cutting. Background Technology
[0002] An adjustable follow-up air blowing device for laser cutting is an auxiliary device used in laser cutting processes. Its main function is to dynamically adjust the airflow direction and pressure to follow the movement of the laser cutting head in real time, thereby blowing away slag, fumes, and oxide layers in the cutting area, thus improving cutting quality and efficiency. An existing laser welding follow-up air blowing device, with publication number CN207205564U, includes a cross slide, an adapter plate, a welding head, a pad, a dual-axis cylinder, and a copper tube. The cross slide has an adapter plate, the adapter plate has a welding head, a pad is located on one side of the adapter plate, and a dual-axis cylinder is mounted on the pad. The dual-axis cylinder is connected to one end of the copper tube, and the copper tube has a split connector connected to an external protective gas device.
[0003] However, in the above solution, the jet range of the aforementioned follow-up blowing device is not easily adjusted by the workers according to their work needs. If the airflow range is too small or the direction is deviated, it cannot effectively blow away molten metal or material residue, resulting in rough cuts and increased burrs. Utility Model Content
[0004] The main purpose of this utility model is to provide an adjustable follow-up air blowing device for laser cutting, which can effectively solve the problems in the background art where the air jet range of the follow-up air blowing device is not easily adjusted by the operator according to the work requirements, the airflow range is too small or the direction is deviated, and it is impossible to effectively blow away molten metal or material residue, resulting in rough cuts and increased burrs.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] An adjustable follow-up air blowing device for laser cutting includes a mounting sleeve, a connecting ring rotatably mounted on the mounting sleeve body via a bearing, a rotating sleeve fixedly mounted on the upper surface of the connecting ring, an exhaust pipe fixedly mounted on the rotating sleeve body, a corrugated pipe fixedly mounted on one end of the exhaust pipe, and a nozzle fixedly mounted on one end of the corrugated pipe.
[0007] The mounting sleeve has an annular groove, and an air inlet pipe is fixedly installed on the upper end of the mounting sleeve.
[0008] Preferably, the mounting sleeve has two sealing grooves, and two annular sealing plates are fixedly installed on the inner wall of the rotating sleeve, with the two annular sealing plates interlocking with the corresponding sealing grooves.
[0009] Preferably, a bevel gear ring is fixedly installed on the lower surface of the connecting ring, and a first motor is fixedly installed on the mounting sleeve body through a bracket. A first bevel gear is sleeved on the output shaft body of the first motor, and the bevel gear ring meshes with the first bevel gear.
[0010] Preferably, the rotating sleeve body is fixedly installed with two positioning frames, and each of the two positioning frames is rotatably mounted on a rotating shaft on one side opposite to the other. The nozzle is fixedly mounted on one side opposite to the other of the two rotating shafts.
[0011] Preferably, one side of one of the rotating shafts passes through a corresponding positioning frame and is fitted with a second bevel gear. A second motor is fixedly installed on the side of the positioning frame near the second bevel gear via a connecting frame. A third bevel gear is fitted on the output shaft of the second motor, and the third bevel gear meshes with the second bevel gear.
[0012] Preferably, a number of connecting blocks are fixedly installed on the upper end of the mounting sleeve, and each connecting block has a connecting hole through one side surface.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] (1) The operator installs the mounting sleeve on the moving part of the laser cutting machine. The operator injects gas into the air inlet pipe. The gas can enter the bellows through the exhaust pipe and finally spray out from the nozzle. When it is necessary to adjust the blowing range, the operator controls the connecting ring to rotate around the bearing, so that it drives the rotating sleeve and the bellows to rotate around the bearing, thereby increasing the air spray range of the nozzle and enabling the nozzle to effectively blow away molten metal or material residue. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an adjustable follow-up air blowing device for laser cutting according to the present invention;
[0016] Figure 2 This is a top view of the adjustable follow-up air blowing device for laser cutting according to the present invention.
[0017] Figure 3 This utility model relates to an adjustable follow-up air blowing device for laser cutting. Figure 2 Schematic diagram of the cross-sectional structure at point AA;
[0018] Figure 4 This utility model relates to an adjustable follow-up air blowing device for laser cutting. Figure 1 Enlarged schematic diagram of the structure at point A;
[0019] Figure 5 This utility model relates to an adjustable follow-up air blowing device for laser cutting. Figure 3Enlarged schematic diagram of the structure at point B.
[0020] In the diagram: 1. Mounting sleeve; 2. Bearing; 3. Connecting ring; 4. Rotating sleeve; 5. Exhaust pipe; 6. Bellows; 7. Nozzle; 8. Annular groove; 9. Inlet pipe; 10. Sealing groove; 11. Annular sealing plate; 12. Bevel gear ring; 13. First motor; 14. First bevel gear; 15. Positioning frame; 16. Rotating shaft; 17. Second bevel gear; 18. Connecting frame; 19. Second motor; 20. Third bevel gear; 21. Connecting block; 22. Connecting hole. Detailed Implementation
[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0022] like Figures 1-5 As shown, an adjustable follow-up air blowing device for laser cutting includes a mounting sleeve 1. A connecting ring 3 is rotatably mounted on the body of the mounting sleeve 1 via a bearing 2. A rotating sleeve 4 is fixedly mounted on the upper surface of the connecting ring 3. An exhaust pipe 5 is fixedly mounted on the body of the rotating sleeve 4. A corrugated pipe 6 is fixedly mounted on one end of the exhaust pipe 5. A nozzle 7 is fixedly mounted on one end of the corrugated pipe 6.
[0023] The mounting sleeve 1 has an annular groove 8, and an air inlet pipe 9 is fixedly installed on the upper end of the mounting sleeve 1.
[0024] The operator installs the mounting sleeve 1 on the moving part of the laser cutting machine. By injecting gas into the air inlet pipe 9, the gas can enter the bellows 6 through the exhaust pipe 5 and finally be sprayed out from the nozzle 7. When it is necessary to adjust the blowing range, the operator controls the connecting ring 3 to rotate around the bearing 2, which drives the rotating sleeve 4 and the bellows 6 to rotate around the bearing 2, thereby increasing the air spray range of the nozzle 7, so that the nozzle 7 can effectively blow away molten metal or material residue.
[0025] In another embodiment of this utility model, the mounting sleeve 1 has two sealing grooves 10, and the inner wall of the rotating sleeve 4 has two annular sealing plates 11 fixedly installed, with the two annular sealing plates 11 respectively interlocking with the corresponding sealing grooves 10.
[0026] The sealing effect produced by the interlocking and cooperation of the annular sealing plate 11 and the sealing groove 10 improves the sealing performance between the rotating sleeve 4 and the annular groove 8 without hindering the rotation of the rotating sleeve 4 along the mounting sleeve 1, thus preventing gas leakage.
[0027] In another embodiment of this utility model, a bevel gear ring 12 is fixedly installed on the lower surface of the connecting ring 3, and a first motor 13 is fixedly installed on the body of the mounting sleeve 1 through a bracket. A first bevel gear 14 is sleeved on the output shaft of the first motor 13, and the bevel gear ring 12 meshes with the first bevel gear 14.
[0028] The staff started the first motor 13, which caused its output shaft to drive the first bevel gear 14 to rotate. Under the meshing action of the first bevel gear 14 and the bevel ring 12, the connecting ring 3 drove the rotating sleeve 4 to rotate.
[0029] In another embodiment of this utility model, the rotating sleeve 4 is fixedly installed with two positioning frames 15, and each of the two positioning frames 15 is rotatably installed with a rotating shaft 16 on one side opposite to the other. The nozzle 7 is fixedly installed on one side opposite to the other of the two rotating shafts 16.
[0030] One of the rotating shafts 16 passes through the corresponding positioning frame 15 on one side and is fitted with a second bevel gear 17. A second motor 19 is fixedly installed on the side of the positioning frame 15 near the second bevel gear 17 via a connecting frame 18. A third bevel gear 20 is fitted on the output shaft of the second motor 19, and the third bevel gear 20 meshes with the second bevel gear 17.
[0031] The staff started the second motor 19, which caused its output shaft to drive the third bevel gear 20 to rotate. The rotating third bevel gear 20 meshed with the second bevel gear 17, causing the shaft 16 to rotate, so that the nozzle 7 could swing around the shaft 16 as a reference, further increasing the spray range of the nozzle 7.
[0032] In another embodiment of this utility model, a plurality of connecting blocks 21 are fixedly installed on the upper end of the mounting sleeve 1, and a connecting hole 22 is provided through one side surface of each connecting block 21.
[0033] After the mounting sleeve 1 is placed in the working position, the worker installs bolts, so that one end of the bolt passes through the corresponding connecting hole 22 and engages with the thread on the working surface, thereby fixing the mounting sleeve 1.
[0034] The working principle of an adjustable follow-up air blowing device for laser cutting:
[0035] In use, the operator installs the mounting sleeve 1 on the moving part of the laser cutting machine. By injecting gas into the air inlet pipe 9, the gas can enter the bellows 6 through the exhaust pipe 5 and finally be sprayed out from the nozzle 7. When it is necessary to adjust the blowing range, the operator controls the connecting ring 3 to rotate around the bearing 2, which drives the rotating sleeve 4 and the bellows 6 to rotate around the bearing 2, thereby increasing the air spray range of the nozzle 7, so that the nozzle 7 can effectively blow away molten metal or material residue.
[0036] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. An adjustable follow-up air blowing device for laser cutting, comprising a mounting sleeve (1), characterized in that: The mounting sleeve (1) is rotatably mounted with a connecting ring (3) via a bearing (2). A rotating sleeve (4) is fixedly mounted on the upper surface of the connecting ring (3). An exhaust pipe (5) is fixedly mounted on the body of the rotating sleeve (4). A corrugated pipe (6) is fixedly mounted on one end of the exhaust pipe (5). A nozzle (7) is fixedly mounted on one end of the corrugated pipe (6). The mounting sleeve (1) has an annular groove (8) on its body, and an air inlet pipe (9) is fixedly installed on the upper end of the mounting sleeve (1).
2. The adjustable follow-up air blowing device for laser cutting according to claim 1, characterized in that: The mounting sleeve (1) has two sealing grooves (10) on its body, and two annular sealing plates (11) are fixedly installed on the inner wall of the rotating sleeve (4). The two annular sealing plates (11) are respectively inserted into the corresponding sealing grooves (10).
3. The adjustable follow-up air blowing device for laser cutting according to claim 2, characterized in that: A bevel gear ring (12) is fixedly installed on the lower surface of the connecting ring (3). A first motor (13) is fixedly installed on the body of the mounting sleeve (1) through a bracket. A first bevel gear (14) is sleeved on the output shaft of the first motor (13). The bevel gear ring (12) meshes with the first bevel gear (14).
4. The adjustable follow-up air blowing device for laser cutting according to claim 3, characterized in that: The rotating sleeve (4) has two positioning frames (15) fixedly installed on its body. Each of the two positioning frames (15) has a rotating shaft (16) rotatably installed on one side of the opposite side. The nozzle (7) is fixedly installed on one side of the two rotating shafts (16).
5. The adjustable follow-up air blowing device for laser cutting according to claim 4, characterized in that: One of the rotating shafts (16) passes through the corresponding positioning frame (15) and is fitted with a second bevel gear (17). A second motor (19) is fixedly installed on one side of the positioning frame (15) near the second bevel gear (17) via a connecting frame (18). A third bevel gear (20) is fitted on the output shaft of the second motor (19). The third bevel gear (20) meshes with the second bevel gear (17).
6. The adjustable follow-up air blowing device for laser cutting according to claim 1, characterized in that: The upper end of the mounting sleeve (1) is fixedly installed with several connecting blocks (21), and each connecting block (21) has a connecting hole (22) through one side surface.