A new laser welding feather blow-off device
By installing a feather blowing device and an inert gas protective gas pipe in the laser welding equipment, the weld problem caused by feather absorption of laser energy was solved, and the welding effect was improved.
Patent Information
- Application Number
- CN202521677415.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-28
- Estimated Expiration
- 2035-08-07
AI Technical Summary
During high-power laser welding, the absorption of laser energy by the plume leads to excessive fluctuations in weld penetration and width deviation.
A novel laser welding feather removal device is designed, which uses compressed air channels and outlets to blow feathers away from the laser working area, while an inert gas protection pipe maintains a protective atmosphere for the molten pool.
It improves the problem of weld penetration fluctuation and weld width deviation caused by the absorption of laser energy by ash, thus enhancing the laser welding effect.
Smart Images
Figure CN224560254U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of laser welding equipment, and in particular to a novel laser welding feather removal device. Background Technology
[0002] During high-power laser welding, the metal material generates a large amount of smoke and plasma (collectively known as "feathers") due to the high temperature. The feathers form a cloud-like barrier above the welding area. The feathers absorb laser energy, resulting in fluctuations in weld penetration and excessive deviations in weld width. Utility Model Content
[0003] In order to improve the problem of weld penetration fluctuation and excessive weld width deviation caused by the absorption of laser energy by ash, and to improve the laser welding effect, this application provides a novel laser welding ash removal device.
[0004] The novel laser welding feather removal device provided in this application adopts the following technical solution: A novel laser welding ash removal device is disclosed, mounted on a robotic arm. The device includes a laser welding head, an inert gas protective tube, and an ash removal mechanism. The ash removal mechanism is positioned between the laser welding head and the inert gas protective tube. It comprises a compressed air regulating valve, a compressed air quick-connect port, and an ash removal outlet. The compressed air regulating valve is installed at the end of the ash removal outlet, and the compressed air quick-connect port is installed on the regulating valve. A compressed air flow channel is formed inside the ash removal outlet, extending along its length and communicating with the regulating valve. An air outlet is formed on the side wall of the ash removal outlet, and several outlets are evenly distributed along its length and communicating with the compressed air flow channel. The air outlets are positioned in the direction of the laser incident beam towards the laser welding head.
[0005] Preferably, the feather ash blowout outlet is made of brass.
[0006] Preferably, the feather blowout outlet forms a 30° angle with the axis of the laser incident beam of the laser welding head.
[0007] In summary, this application includes the following beneficial technical effects: This utility model provides a novel laser welding feather removal device. During welding, the feather removal device can be used to blow the feathers above the welding point away from the laser working area, while the inert gas protective gas pipe maintains the protective atmosphere of the molten pool. This improves the problem of feathers absorbing laser energy, which leads to fluctuations in weld depth and excessive deviation in weld width, thereby improving the effect of laser welding. Attached Figure Description
[0008] Figure 1 This is a first-view view of the novel laser welding feather removal device in the embodiments of this application; Figure 2 This is a second-view view of the novel laser welding ash removal device in the embodiments of this application; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram illustrating the internal structure of the feather ash blowout outlet in the embodiments of this application.
[0009] Explanation of reference numerals in the attached drawings: 1. Robotic arm; 11. Mounting bracket; 2. Laser welding head; 3. Inert gas protective air pipe; 4. Feather blowing device; 41. Compressed air regulating valve; 42. Compressed air quick connector; 43. Feather blowing outlet; 431. Compressed air flow channel; 432. Air outlet. Detailed Implementation
[0010] To enable those skilled in the art to better understand the present invention, the solutions in 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 should fall within the protection scope of the present invention.
[0011] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0012] This application discloses a novel laser welding feather removal device. (Refer to...) Figure 1 , Figure 2 and Figure 3A novel laser welding feather removal device 4 is installed on a robotic arm 1. It includes a laser welding head 2, an inert gas protective tube 3, and a feather removal device 4. A mounting frame 11 is connected to the robotic arm 1. The laser welding head 2, inert gas protective tube 3, and feather removal device 4 are all connected to the mounting frame 11. The feather removal device 4 is positioned between the laser welding head 2 and the inert gas protective tube 3. The feather removal device 4 includes a compressed air regulating valve 41, a compressed air quick-connect port 42, and a feather removal outlet 43. The compressed air regulating valve 41 is installed on the feather removal outlet. At the end of the exhaust port 43, a compressed air quick-connect port 42 is installed on the compressed air regulating valve 41. A compressed air flow channel 431 is provided inside the exhaust port 43. The compressed air flow channel 431 is arranged along the length direction of the exhaust port 43 and is interconnected with the compressed air regulating valve 41. An air outlet 432 is provided on the side wall of the exhaust port 43. Several air outlets 432 are evenly arranged along the length direction of the exhaust port 43 and are interconnected with the compressed air flow channel 431. The air outlets 432 are arranged in the direction of the laser incident beam toward the laser welding head 2.
[0013] The feather dust blowout outlet 43 is made of brass.
[0014] The feather dust blowout outlet 43 forms a 30° angle with the laser incident beam axis of the laser welding head 2.
[0015] The implementation principle of the novel laser welding feather removal device 4 in this application embodiment is as follows: During operation, the laser welding head 2 is started, and at the same time, the external compressed air equipment delivers compressed air to the feather removal outlet 43 through the compressed air quick-connect port 42. After the airflow passes through the compressed air channel 431 and the air outlet 432, it forms an air curtain. The feathers are blown away from the laser working area by the air curtain. The inert gas protective gas pipe 3 delivers inert gas to maintain the protective atmosphere of the molten pool, thereby improving the problem that the feathers absorb laser energy, which leads to fluctuations in weld penetration and excessive weld width deviation, and improving the effect of laser welding.
[0016] Finally, it should be noted that the above description is only a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model's concept are within the protection scope of this utility model. It should be pointed out that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A novel laser welding ash removal device (4), which is mounted on a robotic arm (1), characterized in that: The system includes a laser welding head (2), an inert gas protective tube (3), and a feather removal device (4). The feather removal device (4) is located between the laser welding head (2) and the inert gas protective tube (3). The feather removal device (4) includes a compressed air regulating valve (41), a compressed air quick-connect port (42), and a feather removal outlet (43). The compressed air regulating valve (41) is installed at the end of the feather removal outlet (43), and the compressed air quick-connect port (42) is installed on the compressed air regulating valve (41). A compressed air flow channel (431) is provided inside the opening (43). The compressed air flow channel (431) is arranged along the length direction of the feather dust blowout outlet (43) and is connected to the compressed air regulating valve (41). An air outlet (432) is provided on the side wall of the feather dust blowout outlet (43). Several air outlets (432) are evenly arranged along the length direction of the feather dust blowout outlet (43) and are connected to the compressed air flow channel (431). The air outlets (432) are arranged in the direction of the laser incident beam toward the laser welding head (2).
2. The novel laser welding feather blowing device (4) according to claim 1, characterized in that: The feather dust blowout outlet (43) is made of brass.
3. The novel laser welding feather blowing device (4) according to claim 1, characterized in that: The feather blowout outlet (43) forms a 30° angle with the laser incident beam axis of the laser welding head (2).