CN104668771A - Protecting device for welding joint lens - Google Patents
Protecting device for welding joint lens Download PDFInfo
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- CN104668771A CN104668771A CN201510086695.4A CN201510086695A CN104668771A CN 104668771 A CN104668771 A CN 104668771A CN 201510086695 A CN201510086695 A CN 201510086695A CN 104668771 A CN104668771 A CN 104668771A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/1462—Nozzles; Features related to nozzles
- B23K26/1464—Supply to, or discharge from, nozzles of media, e.g. gas, powder, wire
- B23K26/1476—Features inside the nozzle for feeding the fluid stream through the nozzle
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
本发明公开了一种焊接头镜片保护装置，涉及激光焊接技术领域。该焊接头镜片保护装置包括渐扩式喷嘴，其位于焊接头镜片的下方且接近焊接区，所述渐扩式喷嘴的轴线方向与所述焊接头的轴线方向垂直，所述渐扩式喷嘴包括喷嘴本体、进气口和出气口，所述进气口与压缩气体连通，所述出气口为扇形结构，其中进气口和出气口的个数相同，在喷嘴本体内有相应的气体通道将相对应的进气口和出气口连通，所述气体通道的横截面的面积沿气体流通方向连续减小，气体从所述具有扇形结构的出气口喷出形成一个平面，该平面与焊接头轴线方向垂直。本发明提出的焊接头镜片保护装置，能够保护焊接头镜片免受焊接产生的烟气、焊渣的污染，焊机的设备使用效率得到提高，生产稳定性提高。
The invention discloses a lens protection device for a welding head and relates to the technical field of laser welding. The welding head lens protection device includes a diverging nozzle, which is located below the welding head lens and close to the welding area, the axis direction of the diverging nozzle is perpendicular to the axis direction of the welding head, and the diverging nozzle includes The nozzle body, the air inlet and the air outlet, the air inlet communicates with the compressed gas, the air outlet is a fan-shaped structure, wherein the number of the air inlet and the air outlet is the same, and there are corresponding gas passages in the nozzle body. The corresponding gas inlet and gas outlet are connected, the cross-sectional area of the gas channel decreases continuously along the direction of gas flow, and the gas is ejected from the fan-shaped gas outlet to form a plane, which is parallel to the axis of the welding head Direction is vertical. The welding head lens protection device proposed by the present invention can protect the welding head lens from being polluted by fume and welding slag generated by welding, and the equipment use efficiency of the welding machine is improved, and the production stability is improved.
Description
技术领域technical field
本发明涉及激光焊接技术领域，尤其涉及一种焊接头镜片保护装置。The invention relates to the technical field of laser welding, in particular to a welding head lens protection device.
背景技术Background technique
激光拼焊焊接加工为新技术，在焊接过程中，由于焊渣飞溅会使得激光保护镜片脏污，激光透光率下降，进而导致功率下降，钢板焊接不能溶透，报废增加，且保护镜片更换频繁，也会增加成本。Laser tailor welding is a new technology. During the welding process, the laser protective lens will be dirty due to welding slag splashing, and the laser light transmittance will decrease, which will lead to a decrease in power. Frequent, will also increase the cost.
发明内容Contents of the invention
本发明的目的在于提出一种焊接头镜片保护装置，能够保护镜片不易受到焊渣影响，激光镜片的使用寿命延长，焊机的设备使用效率得到提高，生产稳定性提高。The object of the present invention is to provide a welding head lens protection device, which can protect the lens from being affected by welding slag, prolong the service life of the laser lens, improve the equipment use efficiency of the welding machine, and improve the production stability.
为达此目的，本发明采用以下技术方案：For reaching this purpose, the present invention adopts following technical scheme:
一种焊接头镜片保护装置，包括渐扩式喷嘴，其位于焊接头镜片的下方且接近焊接区，所述渐扩式喷嘴的轴线方向与所述焊接头的轴线方向垂直，所述渐扩式喷嘴包括喷嘴本体、进气口和出气口，所述进气口与压缩气体连通，所述出气口为扇形结构，其中进气口和出气口的个数相同，在喷嘴本体内有相应的气体通道将相对应的进气口和出气口连通，所述气体通道的横截面的面积沿气体流通方向连续减小，气体从所述具有扇形结构的出气口喷出形成一个平面，该平面与焊接头轴线方向垂直。A welding head lens protection device, comprising a gradually expanding nozzle, which is located below the welding head lens and close to the welding area, the axial direction of the gradually expanding nozzle is perpendicular to the axial direction of the welding head, and the gradually expanding nozzle The nozzle includes a nozzle body, an air inlet and an air outlet. The air inlet communicates with the compressed gas, and the air outlet is a fan-shaped structure. The number of the air inlet and the air outlet is the same, and there are corresponding gas The channel communicates with the corresponding air inlet and the gas outlet, and the cross-sectional area of the gas channel decreases continuously along the gas flow direction, and the gas is ejected from the fan-shaped air outlet to form a plane, which is connected with the welding The axis of the head is vertical.
进一步的技术方案，所述进气口的个数至少为两个，且相邻进气口之间的距离相同，所述气体通道的宽度不变，其厚度沿气体流通方向逐渐减小。In a further technical solution, the number of the gas inlets is at least two, and the distance between adjacent gas inlets is the same, the width of the gas channel is constant, and its thickness gradually decreases along the direction of gas flow.
进一步的技术方案，其特征在于，所述相邻出气口之间的距离相同。A further technical solution is characterized in that the distances between the adjacent air outlets are the same.
进一步的技术方案，所述进气口和出气口的个数均为一个，所述喷嘴本体通过其内部的气体通道连通，所述连通通道沿气体流动方向上其宽度逐渐增大，厚度逐渐减小。In a further technical solution, the number of the air inlet and the air outlet is one, and the nozzle body communicates with the gas channel inside, and the width of the communication channel increases gradually along the gas flow direction, and the thickness gradually decreases. Small.
进一步的技术方案，所述焊接头镜片保护装置还包括气体调压装置，所述气体调压装置包括压力调节阀，在气体调压装置与渐扩式喷嘴相连通的管路上沿进气方向依次设有截止阀和压力表。In a further technical solution, the welding head lens protection device also includes a gas pressure regulating device, and the gas pressure regulating device includes a pressure regulating valve, which is sequentially connected to the gas pressure regulating device along the air intake direction on the pipeline connecting the gas pressure regulating device and the gradually diverging nozzle. Equipped with stop valve and pressure gauge.
进一步的技术方案，所述压缩气体为压缩空气、压缩氮气或压缩氦气。In a further technical solution, the compressed gas is compressed air, compressed nitrogen or compressed helium.
本发明的有益效果：Beneficial effects of the present invention:
本发明提供的焊接头镜片保护装置，主要包括渐扩式喷嘴，位于焊接头镜片和焊接区之间，在喷嘴进气口处的压缩气体比较聚集，由于气体通道的形状改变，接近喷嘴出气口的气体的厚度减小，气体从出气口喷出后形成一个平面与焊接头轴线垂直，通过气体平面可以防止其下方焊接产生的烟气和焊渣飞溅，有效保护了焊接头镜片，防止镜片脏污，激光镜片的使用寿命延长，生产稳定性提高；另外该保护装置还设有气体调压装置，可以调整渐扩式喷嘴出气口气体的压力，防止气体压力过大对焊接效果造成不良影响、气体压力过小使得对镜片的保护效果差。The welding head lens protection device provided by the present invention mainly includes a gradually expanding nozzle, which is located between the welding head lens and the welding area, and the compressed gas at the nozzle inlet is relatively concentrated, and due to the shape change of the gas channel, it is close to the nozzle gas outlet The thickness of the gas is reduced, and the gas is ejected from the gas outlet to form a plane perpendicular to the axis of the welding head. Through the gas plane, the fume and welding slag generated by the welding below it can be prevented from splashing, which effectively protects the lens of the welding head and prevents the lens from being dirty. pollution, the service life of the laser lens is extended, and the production stability is improved; in addition, the protection device is also equipped with a gas pressure regulating device, which can adjust the gas pressure of the gas outlet of the gradually expanding nozzle to prevent excessive gas pressure from adversely affecting the welding effect. If the gas pressure is too small, the protective effect on the lens is poor.
附图说明Description of drawings
图1是本发明实施例1提供的渐扩式喷嘴的结构示意图；Fig. 1 is the schematic structural view of the diverging nozzle provided by Embodiment 1 of the present invention;
图2是图1中渐扩式喷嘴的左视图；Fig. 2 is the left side view of the gradually expanding nozzle in Fig. 1;
图3是本发明实施例2提供的渐扩式喷嘴的结构示意图；Fig. 3 is a schematic structural view of the diverging nozzle provided by Embodiment 2 of the present invention;
图4是图3中另一种渐扩式喷嘴的左视图；Fig. 4 is the left side view of another kind of diverging nozzle in Fig. 3;
图5是本发明提供的气体调压装置的结构示意图。Fig. 5 is a schematic structural view of the gas pressure regulating device provided by the present invention.
其中，11、喷嘴本体；12、出气口；13、进气口；14、气体通道；Among them, 11. Nozzle body; 12. Air outlet; 13. Air inlet; 14. Gas channel;
21、喷嘴本体；22、出气口；23、进气口；24、气体通道；21. Nozzle body; 22. Air outlet; 23. Air inlet; 24. Gas channel;
5、压力调节阀；6、管路；7、压力表；8、截止阀。5. Pressure regulating valve; 6. Pipeline; 7. Pressure gauge; 8. Globe valve.
具体实施方式Detailed ways
下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
实施例1Example 1
焊接头镜片保护装置，包括渐扩式喷嘴，图1是本发明具体实施例1提供的渐扩式喷嘴的结构示意图。图2是图1中视图的左视图。该渐扩式喷嘴位于焊接头镜片的下方并接近焊接区，且渐扩式喷嘴的轴线方向与焊接头的轴线方向垂直，渐扩式喷嘴包括喷嘴本体11、进气口13和出气口12，进气口13与压缩气体连通，出气口12为扇形结构，其中进气口13和出气口12的个数相同且至少为两个，在本实施例1中，出气口12和进气口13的个数均为4个，且出气口12和进气口13均匀排列，在喷嘴本体11内有相应的气体通道14将相对应的进气口13和出气口12连通，气体通道14的横截面的面积沿气体流通方向连续减小，气体从具有扇形结构的出气口12喷出形成一个平面，该平面与焊接头轴线方向垂直，本实施例中，气体通道14与渐扩式喷嘴的轴线平行，气体通道14的宽度不变，其厚度沿气体流通方向逐渐减小。气体通道14还可以与渐扩式喷嘴的轴线存在夹角。The welding head lens protection device includes a diverging nozzle, and FIG. 1 is a schematic structural diagram of the diverging nozzle provided in Embodiment 1 of the present invention. FIG. 2 is a left side view of the view in FIG. 1 . The expanding nozzle is located below the welding head lens and close to the welding area, and the axial direction of the expanding nozzle is perpendicular to the axial direction of the welding head. The expanding nozzle includes a nozzle body 11, an air inlet 13 and an air outlet 12, The air inlet 13 communicates with the compressed gas, and the air outlet 12 is a fan-shaped structure, wherein the number of the air inlet 13 and the air outlet 12 is the same and at least two. In this embodiment 1, the air outlet 12 and the air inlet 13 The number of each is 4, and the air outlet 12 and the air inlet 13 are evenly arranged. There is a corresponding gas passage 14 in the nozzle body 11 to communicate with the corresponding air inlet 13 and the air outlet 12. The horizontal direction of the gas passage 14 The area of the cross-section decreases continuously along the direction of gas circulation, and the gas is ejected from the gas outlet 12 with a fan-shaped structure to form a plane, which is perpendicular to the axis of the welding head. Parallel, the width of the gas channel 14 is constant, and its thickness gradually decreases along the direction of gas flow. The gas channel 14 may also be at an angle to the axis of the diverging nozzle.
焊接头镜片保护装置还包括气体调压装置，如图5所示，气体调压装置包括压力调节阀5，在气体调压装置与渐扩式喷嘴相连通的管路6上沿进气方向依次设有截止阀7和压力表8。通过截止阀7控制是否输气及输气流量大小；在截止阀7的输出一侧的管路6上安装有带有截止阀的压力表8，通过压力表8可测得管路6中气体的压力大小，以上三种阀门相互作用可以调节气压，控制气体流量，以使从渐扩式喷嘴的出气口12输出的气体对焊接头镜片的保护达到最佳效果。The welding head lens protection device also includes a gas pressure regulating device, as shown in Figure 5, the gas pressure regulating device includes a pressure regulating valve 5, on the pipeline 6 that the gas pressure regulating device communicates with the gradually diverging nozzle along the air intake direction A shut-off valve 7 and a pressure gauge 8 are provided. Control whether to transmit gas and the flow rate of gas through the stop valve 7; a pressure gauge 8 with a stop valve is installed on the pipeline 6 on the output side of the stop valve 7, and the gas in the pipeline 6 can be measured through the pressure gauge 8 The above three valves interact to adjust the air pressure and control the gas flow, so that the gas output from the gas outlet 12 of the expanding nozzle can achieve the best effect on the protection of the welding joint lens.
实施例2Example 2
与实施例1不同之处在于渐扩式喷嘴的结构。本实施例2中的渐扩式喷嘴仍然位于焊接头镜片的下方并接近焊接区，渐扩式喷嘴的轴线方向与焊接头的轴线方向垂直。The difference from Example 1 lies in the structure of the diverging nozzle. The expanding nozzle in the second embodiment is still located below the lens of the welding head and close to the welding area, and the axial direction of the expanding nozzle is perpendicular to the axial direction of the welding head.
渐扩式喷嘴包括喷嘴本体21、进气口23和出气口22，进气口13与压缩气体连通，出气口12为扇形结构，其中进气口13和出气口12个数均为一个，如图3所示，其左视图如图4所示，在喷嘴本体21内有相应的气体通道24将进气口23和出气口22连通，气体通道24的横截面的面积沿气体流通方向连续减小，气体从具有扇形结构的出气口22喷出形成一个平面，该平面与焊接头轴线方向垂直，连通通道24沿气体流动方向上其宽度逐渐增大，厚度逐渐减小，进一步增大了所形成的气体平面的面积，有效地，阻止烟气及焊渣飞溅到气体平面上方的焊接头镜片上，有效保护了镜片。The gradually expanding nozzle includes a nozzle body 21, an air inlet 23 and an air outlet 22, the air inlet 13 communicates with the compressed gas, and the air outlet 12 is a fan-shaped structure, wherein the number of the air inlet 13 and the air outlet 12 is one, as As shown in Fig. 3, and its left view is shown in Fig. 4, there is a corresponding gas channel 24 in the nozzle body 21 to communicate with the air inlet 23 and the gas outlet 22, and the cross-sectional area of the gas channel 24 decreases continuously along the gas flow direction. Small, the gas is ejected from the gas outlet 22 with a fan-shaped structure to form a plane, which is perpendicular to the axis of the welding head, and the width of the communication channel 24 gradually increases along the direction of gas flow, and the thickness gradually decreases, further increasing the The area of the formed gas plane effectively prevents the flue gas and welding slag from splashing onto the lens of the welding head above the gas plane, effectively protecting the lens.
在实施例1和实施例2中的压缩气体可以选择压缩空气、压缩氮气或压缩氦气等。The compressed gas in Embodiment 1 and Embodiment 2 can be selected from compressed air, compressed nitrogen or compressed helium, etc.
以上详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，这些简单变型均属于本发明的保护范围。The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention. These simple modifications All belong to the protection scope of the present invention.
Claims (6)
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| CN201510086695.4A CN104668771A (en) | 2015-02-25 | 2015-02-25 | Protecting device for welding joint lens |
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| CN201510086695.4A CN104668771A (en) | 2015-02-25 | 2015-02-25 | Protecting device for welding joint lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114471974A (en) * | 2020-11-13 | 2022-05-13 | 上海发那科机器人有限公司 | Uniform-jet-flow wide-width nozzle |
| CN117680872A (en) * | 2023-12-08 | 2024-03-12 | 马鞍山钢铁股份有限公司 | A control method to improve the quality of ERW welded pipe welds |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117680872A (en) * | 2023-12-08 | 2024-03-12 | 马鞍山钢铁股份有限公司 | A control method to improve the quality of ERW welded pipe welds |
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Application publication date: 20150603 |