CN100579709C - 焊接工具 - Google Patents
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B23K10/00—Welding or cutting by means of a plasma
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
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- 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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B23K9/00—Arc welding or cutting
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- B23K9/296—Supporting devices adapted for making use of shielding means the shielding means being a gas using non-consumable electrodes
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Abstract
提出了一种焊接工具,尤其是用于TIG电弧焊接或等离子焊接或激光焊接的焊接工具,其包括用来将惰性气体供给至所述工具的头部的装置,以及用来围绕所述焊接头部限定所述保护性惰性气体的装置,所述限定装置包括由半刚性难熔材料预制成的侧板和用来将所述侧板可拆卸地紧固到所述焊接头部上的紧固装置。
Description
技术领域
本发明涉及焊接工具,更具体地讲,涉及用于钨极惰性气体(TIG)电弧焊接或等离子焊接或激光焊接的焊接工具。
背景技术
TIG电弧焊接工具或等离子焊接工具包括承载诸如不可熔钨的杆等难熔电极的头部,所述电极可与将被装配一起的工件结合产生电弧从而通过熔化并混合它们的材料在它们之间形成焊道(weld bead)。
激光焊接工具包括能产生高能束的激光发生器,所述高能束被施加到工件上从而通过熔化并混合它们的材料在它们之间形成焊道。
此种焊接工具包括用来将惰性气体供给到所述工具的头部的装置,所述惰性气体是用来保护由所熔化的材料形成的焊道,从而保护所述材料不受环境大气的氧化作用影响。
为了改进这种保护,电焊工通常围绕所述焊接头部形成难熔胶带的罩从而围绕所述正被形成的焊道限制所述惰性气体并因而改进焊接的质量。
此种罩是易碎的并且需要经常更换,它们的形状不是很精确的并且很难适用于所述工件,并且罩与罩彼此相互不同,并且制造它们是相对费时的。
发明内容
本发明的一个特定目的是提出一种针对所述这些问题简单、便宜并高效的解决方法,并尤其是在自动焊接时,改进焊接质量。
为此,本发明提出了一种焊接工具,尤其是用于TIG电弧焊接或等离子焊接或激光焊接的焊接工具,所述工具包括用来将惰性气体供给到焊接工具的头部从而保护焊道不受氧化作用影响的装置,所述焊接头部被半刚性难熔材料的侧板围绕从而限定所述保护性惰性气体,其中,所述侧板包括被成形为在预定的长度内以带有间隙的方式围绕焊道的前部,以及能使其可拆卸地紧固到所述焊接头部上的紧固装置,位于用于焊接一起的工件旁边的所述侧板的自由边沿被成形为以带有间隙的方式匹配工件的结合区的形状和尺寸,所述半刚性难熔材料为复合材料,所述复合材料由两层陶瓷纤维与耐高温弹性体结合在一起制成,所述侧板包括用来提供热保护的金属层,其在两层陶瓷纤维之间被整合在所述复合材料内。
所述预制的侧板其标准形状和尺寸是基于工件的形状和尺寸而确定的。其通过适合的紧固装置被容易地装配并紧固到所述焊接工具的头部,并且具有无需修改焊接条件而互换的优点。此外,所述侧板由难熔材料制成,因而赋予其很长的寿命,并因而赋予将被使用在多个焊接操作中的能力。
所述侧板的前部用来尽可能紧密地匹配所述工件的形状,而同时并不接触它们并允许气体以规定的速度流动经过侧板外周的主要部分的出口流动,从而对于焊道提供高效的保护使其免受氧化作用的影响。
所述弹性体用于将优选被纺织的陶瓷纤维粘合一起,并且确保所述侧板是相对可弯曲的。
所述金属层形成热保护层而增加所述侧板经受高温的能力并使其保持给定的形状。所述金属层优选由与所述工件相同金属制成,从而在所述侧板接触到所述焊道时避免污染已熔的材料。
本发明的侧板有利包括多层耐高温材料并且优选通过模制或热成形制成,因而使得使用基于所述工件的形状和尺寸而确定的这种形状和尺寸的模具生产出相同的侧板,因而提供以下多个优点:
·当使用通过一个公用模具而依次制造的侧板时,焊接的质量不变,所述侧板的形状和尺寸可被优化成获得高质量的焊道,尤其是大致矩形的、宽度窄的并贯穿深度高的焊道;
·制造所述侧板所需的时间相对于现有技术被显著缩短;并且
·所述焊接工具的操作性被改进,这是因为不再依靠所述侧板制造的质量。
所述侧板有利包括用来被穿过填料金属丝并允许观察焊接区的后开口。
由于所述焊接工具向后移动,因此所述后开口并不限定所述惰性气体在所述侧板内。
利用自动焊接,所述焊接工具被安装在还带有用于经过所述侧板内的后开口观察焊接区的摄像机的机器臂上。
附图说明
通过阅读由非限定实施例构成的说明书以及参看附图,将理解本发明的其他优点和特征,其中:
图1是根据本发明的装有侧板的焊接工具的图解纵向剖视图;
图2是针对图1放大比例的局部视图;
图3是图2中的侧板的图解俯视图;
图4是沿图3的线IV至IV的剖视图;
图5是侧板以放大比例的图解剖视图;并且
图6是将本发明的侧板紧固到焊接工具的头部的紧固装置的图解视图。
具体实施方式
图1是示出了TIG电弧焊接工具10或等离子焊接工具的前部的视图,所述这些工具是属于适用于通过机器臂操作的那种类型。
所述工具的前部包括承载诸如不可熔钨的杆等难熔电极14的焊接头部12,轴线16大致垂直于将被形成的焊道。
在焊接操作期间,在难熔电极14与将被装配在一起的各工件20间的结合区之间产生电弧,从而形成金属熔池,在该熔池内,各工件20的材料熔化并混合一起,从而在冷却下来之后构成焊道。
所述电极14的顶部被比所述电极14短的圆柱形喷嘴22围绕,从而所述电极的底端沿轴向从所述喷嘴22突出。
通过使用或不使用填料金属,可完成所述焊接操作。在如图1所示的实施方式中,填料金属丝28以受控或自动的方式通过合适的装置被进给,并且从所述焊接工具10的位于所述焊接头部12后方的一部分被斜向引导,从而朝所述熔池延伸,其在所述电极14附近。
在这种类型的焊接中,如在激光焊接中,在所述熔池内的材料一旦被暴露到环境大气就氧化。为了对此进行避免,所述焊接工具包括用来将惰性气体供给至所述头部12并供给到所述喷嘴22内的装置,从而惰性气体越过并围绕所述难熔电极14和所述熔池而流动。根据实例,所述使用的惰性气体可以是氩气、氦气或二者的混合。
本发明的焊接工具10具有预制的用来围绕所述焊接头部12和所述熔池限定所述惰性气体的装置,该装置被准确匹配到将被装配的工件,从而高效限制它们暴露至所述外界大气,并且因而避免或极大减少所述已熔的材料由于所述外界大气的氧化作用。
所述装置包括半刚性难熔材料制成的侧板32,其被形成具有顶部34和底部40,所述顶部是大致圆柱形的,用来安装在所述喷嘴22上;所述底部具有向下扩展的形状,该形状从所述圆柱形部分34的底端延伸到至少如所述难熔电极14的底端那么远的地方,并优选稍微超过所述底端。
所述侧板32的底部40包括从所述底部40的底端延伸上到所述侧板32中部的后开口42,所述后开口42为V形或U形的,例如,其顶点上到所述侧板32的中部。
所述后开口42用来使填料金属供给装置通过,并也用来允许操作者通过安装在所述工具上并位于所述头部12之后的摄影机43在焊接操作期间观察所述金属熔池。
所述侧板32的底部40优选向前延伸,远离所述开口42,伸长部分44用来引导所述惰性气体越过刚刚已经被形成的焊道的最大长度,并且所述底部40以内凹的方式围绕所述焊道被弯曲,从而在围绕所述焊道前部形成气体出口。
在各附图所示的实施方式中,所述侧板32的底端是从前至后大致凹进形状的,并且所述前伸长部分44的底部40是越过至少其长度的一段同样凹进的。
安装在所述头部12上的所述侧板32围绕圆柱形喷嘴22,所述喷嘴具有安装在其上的放电器45从而改进触发电弧。
在焊接操作期间,所述焊接工具相对于工件从前位置朝后位置移动。根据实例,图1示出了所述焊接工具10相对于工件20的前初始位置。
在所述操作期间,所述侧板32并未与工件20接触。所述侧板32的底部40以及其前伸长部分44处于距离所述工件20和所述熔池预定小并大致恒定处,从而惰性气体在侧板32的底沿与所述工件20之间流动的流速是大致恒定的并且提供给所述熔池很好的保护以防止氧化作用。
所述侧板32的底沿的形状和尺寸需要根据工件20的形状和尺寸来正确确定。
所述侧板32优选通过以下方式制成,即模制或热成形复合材料,该复合材料由至少一层或优选多层陶瓷纤维与弹性体结合在一起制成,所述弹性体是耐高温的,并且用来将所述各陶瓷纤维层粘合在一起以及保持由型腔模具所确定的侧板32的形状。
为了增加所述侧板32经受高温的能力,金属层46在两层陶瓷纤维之间被整合在所述复合材料内。所述金属层46优选由与所述工件20相同的材料制成,从而在所述侧板32偶然与所述熔池接触时,所述金属熔池不会受到外来材料的污染。
通常,所述金属层46为0.2毫米(mm)厚,并且越过所述侧板32的整个或部分复合材料在两层陶瓷纤维之间延伸。在图示的实施例中,所述金属层为大致矩形细长形状并且从侧板32的顶部34越过侧板的前段而延伸。
如图5所示,侧板32由耐高温的材料层的堆叠而制成,并且包括例如:弹性体层47、陶瓷纤维层48、弹性体层47、金属层46、弹性体层47、陶瓷纤维层48和弹性体层47。每个纤维层是由可承受大约1300℃温度的连续纤维的纺织织物构成,并且其在1000℃以上的温度保持可弯曲的,所述织物具有毫米级的厚度。
图6示出了用于将侧板32紧固在焊接工具10的喷嘴22上的紧固装置49。所述紧固装置49是夹圈型的并且包括用来在所述复合材料内整合的可弯曲的金属条50,即在所述侧板32的顶部34的顶端处两层陶瓷纤维之间,从而配合所述顶端的圆柱体形状,如图3所示。所述条50的端部从所述侧板突出并且包括用来穿过例如螺钉螺母式的紧固装置54的孔52,从而将侧板32的顶部34夹持在焊接工具10的喷嘴22上。通常,所述金属条50为0.5mm厚。
在图6所示的实施例中,紧固装置49为大致梳子形,所述金属条50具有多个在其一侧上的齿56,它们从所述金属条50垂直突出并且被设计成整合在所述复合材料内,从而改进所述紧固装置49的固定作用。
在侧板32的所述实施例中,紧固装置49的所述条50被插在模具内并且与构成所述侧板32的材料一同成形。
在一个改型中,所述条50不需要被整合在所述复合材料内,而是可以围绕所述侧板32的顶部34的外侧安置在其上,并且可接着靠着焊接工具10的头部12的喷嘴22被夹紧。
通常,对于装配有大约30mm直径的喷嘴22的焊接工具10而言,所述侧板32具有大约100mm的长度、大约50mm的宽度和大约40mm的高度。其被特别设计成安装在适用于使用在焊接车间内的TIG或类似形式的自动焊接工具的头部上,从而确保焊道的重复性高质量。
Claims (7)
1.一种焊接工具,所述工具包括将保护性惰性气体供给至所述焊接工具的焊接头部从而保护焊道不受氧化作用影响的装置,所述焊接头部被半刚性难熔材料的侧板围绕从而限定所述保护性惰性气体,其中,所述侧板包括被成形为在预定的长度内以带有间隙的方式围绕焊道的前部,以及能使其可拆卸地紧固到所述焊接头部上的紧固装置,位于将被焊接一起的工件旁边的侧板自由边沿被成形为以带有间隙的方式匹配工件的结合区的形状和尺寸,所述半刚性难熔材料为复合材料,所述复合材料由两层陶瓷纤维与耐高温弹性体结合在一起制成,所述侧板包括用来提供热保护的金属层,其在两层陶瓷纤维之间被整合在所述复合材料内。
2.如权利要求1所述的焊接工具,其特征在于,所述金属层由与所述工件相同的金属制成。
3.如权利要求1所述的焊接工具,其特征在于,所述侧板是通过模制或热成形制成。
4.如权利要求1所述的焊接工具,其特征在于,所述侧板包括用来被穿过填料金属丝并观察焊接区的后开口。
5.如权利要求1所述的焊接工具,其特征在于,所述工具是被安装在还带有用于观察焊接区的摄像机的机器臂上。
6.如权利要求1所述的焊接工具,其特征在于,所述紧固装置被整合在所述侧板的复合材料内。
7.如权利要求6所述的焊接工具,其特征在于,所述紧固装置包括夹圈。
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FR0411044A FR2876607B1 (fr) | 2004-10-19 | 2004-10-19 | Outil de soudage |
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US7456370B2 (en) * | 2006-01-30 | 2008-11-25 | Honeywell International Inc. | Welding shield and flexible skirt for automated welding |
JP4998771B2 (ja) * | 2006-05-17 | 2012-08-15 | 株式会社Ihi | サブマージアーク溶接装置及びサブマージアーク溶接方法 |
US8053701B2 (en) * | 2008-10-28 | 2011-11-08 | The Boeing Company | Inert gas cover system for laser welding |
WO2011029462A1 (de) * | 2009-09-14 | 2011-03-17 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Verfahren und vorrichtung zum bearbeiten von werkstücken mit einer lasereinrichtung und einer lichtbogeneinrichtung |
FR2970665B1 (fr) * | 2011-01-24 | 2013-11-29 | Snecma | Dispositif de confinement de gaz |
JP6369636B2 (ja) * | 2015-08-18 | 2018-08-08 | 株式会社Ihi | 高温部観察装置 |
GB201609995D0 (en) * | 2016-06-08 | 2016-07-20 | Aquasium Technology Ltd | Shaped welding head |
US10307803B2 (en) * | 2016-07-20 | 2019-06-04 | The United States Of America As Represented By Secretary Of The Navy | Transmission window cleanliness for directed energy devices |
CN107790932A (zh) * | 2016-08-31 | 2018-03-13 | 上海岩灵自动化工程有限公司 | 一种汽车仪表盘骨架自动焊接系统 |
CN106493453A (zh) * | 2016-09-30 | 2017-03-15 | 张昌胜 | 气托电焊工艺及工具 |
PL243917B1 (pl) * | 2021-06-18 | 2023-10-30 | Politechnika Swietokrzyska | Uniwersalna nakładka na dysze do cięcia laserowego |
CN116000457B (zh) * | 2022-12-06 | 2024-03-22 | 哈尔滨焊接研究院有限公司 | 激光同轴诱导多tig电弧多丝快速增材制造方法及制造系统 |
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US2902587A (en) * | 1955-04-29 | 1959-09-01 | Chemetron Corp | Arc welding process and apparatus |
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RU2393945C2 (ru) | 2010-07-10 |
GB0519757D0 (en) | 2005-11-09 |
US20060081562A1 (en) | 2006-04-20 |
GB2419312A (en) | 2006-04-26 |
CN1762647A (zh) | 2006-04-26 |
FR2876607A1 (fr) | 2006-04-21 |
GB2419312B (en) | 2010-01-13 |
US7399941B2 (en) | 2008-07-15 |
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