Auxiliary device for laser welding and laser welding system
By designing a laser welding auxiliary device, the channel structure is used to isolate the protective gas and smoke, the problem of inconsistent welding effects caused by the position of the dust extraction equipment is solved, and the uniformity of welding effects and yield improvements are achieved.
Patent Information
- Application Number
- CN202323636708.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2033-12-28
AI Technical Summary
In the existing laser welding technology, the welding effect is inconsistent because the dust extraction equipment is located on the weld side, which affects the welding yield.
Design an auxiliary device for laser welding, including a first body and a second body, a channel is provided in the first body for connecting to the dust extraction device and the protective gas device, and a protective gas is passed through the second opening and through the first opening Suck out smoke and dust, and the protective air surrounds the outside of the smoke and dust, separates the smoke and dust from the protective air to ensure the consistency of the welding effect.
By isolating and protecting gas and smoke, avoiding their mixing, the uniformity of welding effect is improved, the welding yield is improved, and it has the advantages of simple and compact structure.
Smart Images
Figure CN222326995U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of laser welding, and in particular relates to a laser welding auxiliary device and a laser welding system. Background Art
[0002] The effect of laser welding is affected by factors such as laser wavelength and power density. Among them, the shielding gas is particularly important for the strength and surface morphology of the welding machine. Therefore, in the laser welding process, in order to ensure the welding strength and the beauty of the weld, it is necessary to introduce shielding gas to dispel the plasma shielding effect produced by high-power laser welding, protect the workpiece from oxidation during the welding process, and blow away the smoke caused by the hard welding effect during the welding process.
[0003] In the related art, the welding effect is ensured by adding air blowing equipment. However, for some thin aluminum alloy products, the welding speed is required to be fast, and there must be no black smoke at the edge of the weld, otherwise it will affect the welding effect. Therefore, when using the air blowing device, a dust extraction device must be added. However, the dust extraction device is located on one side of the weld. The welding effect on the side where the dust extraction device is located is better than that on the other side. The welding effect of the finished product is inconsistent, which affects the welding yield. Utility Model Content
[0004] The embodiments of the present application provide a laser welding auxiliary device and a laser welding system to solve the problem that the existing dust extraction equipment is located on one side of the weld, resulting in inconsistent welding effects and affecting the welding yield.
[0005] In a first aspect, an embodiment of the present application provides an auxiliary device for laser welding, comprising:
[0006] A first body, wherein the first body is provided with a first channel, and the first body is provided with a first opening and a second opening, wherein the first opening is communicated with the first channel, the first opening is used to be connected to a dust extraction device, and the second opening is used to be connected to a protective gas device;
[0007] The second body is arranged in the first body, a second channel is formed between the inner wall of the first body and the outer wall of the second body, the second opening is communicated with the second channel, the second body is provided with a third channel, the first channel is connected with the third channel, and the first channel, the second channel and the third channel are coaxially arranged.
[0008] Optionally, the first body is cylindrical.
[0009] Optionally, the second body has a first end and a second end, the caliber of the first end is larger than the caliber of the second end, and the first end is sealingly connected to the inner wall of the first body.
[0010] Optionally, the first body has a third end and a fourth end, the second end extends from the fourth end, the third end extends from the first end, and the fourth end extends from the second end.
[0011] Optionally, the first opening is located between the third end and the first end;
[0012] And / or, the second opening is located between the first end and the fourth end.
[0013] In a second aspect, an embodiment of the present application further provides a laser welding system, which includes an auxiliary device for laser welding as described in any one of the above items.
[0014] The embodiments of the present application provide an auxiliary device for laser welding and a laser welding system. The auxiliary device for laser welding includes a first body and a second body. The first body is sleeved on the second body. A first channel is provided in the first body. A first opening and a second opening are provided on the first body. A second channel is formed between the first body and the second body. A third channel is provided in the second body. The first channel, the second channel and the third channel are coaxially arranged. The first opening is communicated with the first channel. The first opening is used to connect to a dust extraction device. The second opening is communicated with the second channel. The second opening is used to connect to a shielding gas device. During welding, shielding gas is introduced through the second opening. Smoke and dust generated during welding is sucked out through the first opening. The shielding gas surrounds the outside of the smoke. The shielding gas and the dust extraction position surround the welding position. The shielding gas is separated from the smoke to avoid mixing with the shielding gas. The problem of inconsistent welding effect and affecting welding yield due to the dust extraction device being located on one side of the weld is overcome. The device has the advantages of simple structure and good welding effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.
[0016] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.
[0017] Figure 1 A schematic diagram of the structure of the auxiliary device for laser welding provided in an embodiment of the present application.
[0018] Figure 2 A partial cross-sectional view of a laser welding auxiliary device provided in an embodiment of the present application.
[0019] Figure 3 A system schematic diagram of a laser welding system provided in an embodiment of the present application. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0021] The embodiment of the present application provides a laser welding auxiliary device to solve the problem that the existing dust extraction equipment is located on one side of the weld, resulting in inconsistent welding effects and affecting the welding yield.
[0022] See also Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the structure of the auxiliary device for laser welding provided in an embodiment of the present application. Figure 2 A partial cross-sectional view of a laser welding auxiliary device provided in an embodiment of the present application. A laser welding auxiliary device includes a first body 100 and a second body 200 .
[0023] In this embodiment, the first body 100 is made of metal material, such as copper material, which has good high temperature resistance. A through first channel 110 is provided in the first body 100, and a first opening 120 and a second opening 130 are provided on the first body 100. The first opening 120 is connected to the first channel 110, and the first opening 120 is used to connect to a dust extraction device, which may be a smoke extractor. The second opening 130 is used to connect to a protective gas device, and the protective gas device is used to pass inert gas.
[0024] In this embodiment, the second body 200 is made of metal material, such as copper material, which has good high temperature resistance. The second body 200 is arranged in the first body 100, and a second channel 210 is formed between the inner wall of the first body 100 and the outer wall of the second body 200. The cross-sectional shape of the second channel 210 is annular, such as a circular ring. The second opening 130 is connected to the second channel 210. The second body 200 is provided with a third channel 220, the first channel 110 and the third channel 220 are connected, and the first channel 110, the second channel 210 and the third channel 220 are coaxially arranged.
[0025] It can be understood that the first opening 120 is connected to the dust extraction equipment, and the smoke generated during the welding process is discharged from the first opening 120 after passing through the third channel 220 and the first channel 110. The second opening 130 is connected to the protective gas equipment, and the protective gas enters the second channel 210 from the second opening 130 and is sprayed out. The outlet range of the second channel 210 is larger, ensuring that the welding position is covered by the protective gas, and the protective gas has a better effect. The protective gas is separated from the smoke, and the dust extraction equipment is not easy to extract the protective gas, thereby ensuring the welding effect. The first channel 110 and the third channel 220 are also used for laser transmission to prevent shading, ensure the welding effect, and have the advantages of simple and compact structure.
[0026] In some embodiments, see Figure 1 and Figure 2 As shown, the first body 100 is cylindrical, and the first body 100 is a cylindrical structure with two ends open. In the direction perpendicular to the first body 100, the cross-sectional shape of the first body 100 is circular, and the first channel 110 is cylindrical, which is convenient for processing the first body 100 and has a simple processing technology. As a variant, the first body 100 can also adopt a cylindrical structure with a square cross-section.
[0027] In some embodiments, see Figure 1 and Figure 2 As shown, the second body 200 has a first end 230 and a second end 240, the caliber of the first end 230 is larger than the caliber of the second end 240, the second body 200 is in the shape of a truncated cone, the second body 200 is a hollow structure, the second body 200 is coaxially arranged with the first body 100, the first end 230 and the second end 240 are both open, the first end 230 is sealed and connected to the inner wall of the first body 100, so as to prevent the protective gas in the second channel 210 from entering the first channel 110 from the first end 230, but the opening of the first end 230 is connected to the first channel 110, so as to realize the isolation of the protective gas and the smoke, and the isolation effect is good.
[0028] Based on the above implementation, see Figure 1 and Figure 2 As shown, the first body 100 has a third end 140 and a fourth end 150 , the fourth end 150 extends from the second end 240 , and the third end 140 extends from the first end 230 .
[0029] It can be understood that when the fourth end 150 of the first body 100 is extended out of the second body 200, during laser welding, the fourth end 150 of the first body 100 abuts against the material to be welded, ensuring that a layer of inert gas protection layer is formed on the surface of the welding material, which is conducive to forming an airflow circulation with the dust extraction equipment, improving the welding effect, and ensuring the product yield.
[0030] Based on the above embodiment, the first opening 120 is located between the third end 140 and the first end 230, and the first opening 120 is directly connected to the first channel 110. It is only necessary to open the first opening 120 on the first body 100, which facilitates the processing of the first opening 120, reduces the sealing position, and has a good sealing effect.
[0031] On the basis of the above embodiment, the second opening 130 is located between the first end 230 and the fourth end 150, and the second opening 130 is directly connected to the second channel 210. It is only necessary to open the second opening 130 on the first body 100. The second opening is opened on the outside, which facilitates the processing of the first opening 120, reduces the sealing position, and has a good sealing effect.
[0032] In some embodiments, see Figure 1 and Figure 2 As shown, the auxiliary device for laser welding also includes a fixing component 300, which is installed on the first body 100. The fixing component 300 is provided with a light-through hole 310, which is located on the side of the first channel 110 away from the third channel 220. Along the axis of the first channel 110, the projection of the light-through hole 310 overlaps with the projection of the third channel 220.
[0033] It can be understood that the combined structure of the first body 100 and the second body 200 can be assembled into one with the laser welding head through the fixing component 300. The laser beam output by the laser welding head is emitted from the first channel 110 and the third channel 220 through the light hole 310, and acts on the material to be welded to ensure that the laser beam passes through and avoid blocking the laser beam.
[0034] In the above embodiment, see Figure 1 and Figure 2 As shown, the fixing assembly 300 includes a connecting plate 320 and an adjusting member 330, the adjusting member 330 connects the first body 100 and the connecting plate 320, the light-through hole 310 is arranged on the connecting plate 320, the connecting plate 320 is a square flat plate, and a flange connecting hole 321 is arranged on the connecting plate 320, the connecting plate 320 is used to connect the laser welding head, and the adjusting member 330 is used to adjust the first body 100 to be close to or away from the connecting plate 320.
[0035] It can be understood that in this embodiment, an adjustment member 330 is provided for adjusting the first body 100 to be close to or away from the connecting plate 320, thereby adjusting the distance between the end of the first body 100 and the second body 200 away from the connecting plate 320 and the material to be welded, so that material overlap welding can be performed, which has the advantages of simple and compact structure and wide range of application.
[0036] In the above embodiment, the adjusting member 330 includes a screw 331 and a spring 332, and the spring 332 is sleeved on the screw 331. One end of the spring 332 abuts against the connecting plate 320, and the other end abuts against the first body 100. One end of the screw 331 is fixedly connected to the first body 100, and the other end is threadedly connected to the connecting plate 320 to adjust the first body 100 to be close to or away from the connecting plate 320. The first body 100 can be used to press the materials for stack welding to ensure that the gap and position of the materials for stack welding meet the design requirements. The spring 332 has a certain elastic restoring force. By setting the spring 332, the first body 100 is protected to avoid excessive pressure between the end of the first body 100 and the material to be welded, which may cause deformation and damage to the second body 200.
[0037] As a variation, the adjusting member 330 may also be a structure such as a screw rod or a telescopic cylinder, so as to adjust the distance between the first body 100 and the connecting plate 320 .
[0038] On the basis of the above embodiment, a connecting portion 160 is provided on one side of the first body 100 facing the connecting plate 320, the connecting portion 160 is protruding outward from the first body 100, and one end of the screw rod 331 is fixedly connected to the connecting portion 160. It can be understood that the connecting portion 160 is equivalent to a flange connecting plate provided at the third end 140 of the first body 100, and is connected to the screw rod 331 through the connecting portion 160, which is convenient for installation and simple for height adjustment operation.
[0039] Second, see Figure 1 and Figure 3 As shown, an embodiment of the present application further provides a laser welding system, which includes any of the above-mentioned laser welding auxiliary devices and a laser welding head 400.
[0040] The output end of the laser welding head 400 is fixed to the connecting plate 320 by bolts, and the distance between the first body 100 and the connecting plate 320 is adjusted by the adjusting member 330 to ensure that the fourth end 150 of the first body 100 presses the material to be welded. When the welded products are different, the fourth end 150 of the first body 100 can also be higher than the material to be welded, or lower than the material to be welded, and can be adjusted at will. The protective gas is introduced through the second opening 130, so that the material to be welded is within the range of the protective gas. The laser beam acts on the material to be welded from the first channel 110 through the third channel 220 to perform laser welding, and the smoke generated by the welding process is sucked out through the first opening 120, and the cycle is repeated to obtain a good welding effect.
[0041] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0042] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.
[0043] The above is a detailed introduction to the laser welding auxiliary device and laser welding system provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. A laser welding auxiliary device, characterized in that: include: A first body, wherein the first body is provided with a first channel, and the first body is provided with a first opening and a second opening, wherein the first opening is communicated with the first channel, the first opening is used to be connected to a dust extraction device, and the second opening is used to be connected to a protective gas device; The second body is arranged in the first body, a second channel is formed between the inner wall of the first body and the outer wall of the second body, the second opening is communicated with the second channel, a third channel is arranged in the second body, the first channel is connected with the third channel, and the first channel, the second channel and the third channel are coaxially arranged.
2. The auxiliary device for laser welding according to claim 1, characterized in that: The first body is cylindrical.
3. The laser welding auxiliary device according to claim 1, characterized in that: The second body has a first end and a second end, the caliber of the first end is larger than the caliber of the second end, and the first end is sealedly connected to the inner wall of the first body.
4. The auxiliary device for laser welding according to claim 3, characterized in that: The first body has a third end and a fourth end, the third end extends from the first end, and the fourth end extends from the second end.
5. The auxiliary device for laser welding according to claim 4, characterized in that: The first opening is located between the third end and the first end; And / or, the second opening is located between the first end and the fourth end.
6. The auxiliary device for laser welding according to claim 1, characterized in that: It also includes a fixing component, which is installed on the first body. The fixing component is provided with a light-through hole, which is located on the side of the first channel away from the third channel. Along the axis of the first channel, the projection of the light-through hole overlaps with the projection of the third channel.
7. The auxiliary device for laser welding according to claim 6, characterized in that: The fixing assembly includes a connecting plate and an adjusting member, wherein the adjusting member connects the first body and the connecting plate, the light-through hole is arranged on the connecting plate, the connecting plate is used to connect the laser welding head, and the adjusting member is used to adjust the first body to be close to or away from the connecting plate.
8. A laser welding system, characterized in that: The laser welding system comprises: an auxiliary device for laser welding as described in any one of claims 1 to 7.