CN101146639A - 双导体焊枪 - Google Patents
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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
- B23K9/095—Monitoring or automatic control of welding parameters
- B23K9/0956—Monitoring or automatic control of welding parameters using sensing means, e.g. optical
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0258—Electric supply or control circuits therefor
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1043—Power supply characterised by the electric circuit
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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
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
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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
- B23K9/32—Accessories
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- H—ELECTRICITY
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
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- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
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- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
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- H—ELECTRICITY
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- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
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- H05H1/34—Details, e.g. electrodes, nozzles
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
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- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
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- H05H1/34—Details, e.g. electrodes, nozzles
- H05H1/36—Circuit arrangements
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Abstract
本发明涉及包括焊炬本体(1)和测量电流强度的电子称(2)的双导体焊枪,该焊枪具有布置在每一导体(3)之内的传感器(6)以及用于在流过导体的电流强度之间发生不平衡的时候产生警报的装置。为了所述目的,本发明使用连接至电流强度传感器(6)和导体的温度传感器(8)的微控制器(5),该微控制器具有指示故障或异常的信号输出。微控制器(5)程序计算两个电流强度信号的量值之间的差值并确定哪个值更大,依照预先确定的参数发出相应的警报信号。
Description
技术领域
具有双导体的焊枪由用于与电能转换器连接的特殊工业电桩、绝缘软管内的导体束以及尖端用于焊接的焊枪(也称为“焊炬”)组成,所有这些部分的排列方式使得如果导体出现故障则能够触发传送至工艺控制系统的警报。
本发明的应用领域是针对工业焊接的产业。
背景技术
现在,在手工和自动工业焊接方面,电流强度导体的故障都会导致生产的损失,而且当这样的故障发生在无人监测的时段的时候,焊接过程会在那一点上停止下来,直到该问题得到解决,这就会产生产业链位置调整的成本。故障可能是由于不同原因产生的,例如导电材料腐蚀导致的老化、机械磨损导致的断裂、或者过热。
发明内容
这个焊枪或焊炬设计来连接至直流电源系统,该系统具有10到40伏特之间的电压和1到400安培之间的电流强度,并具有500A的最大允许电流强度。
本发明的发明人通过使用两个导体提出前面描述的问题的解决方案。其中一个导体的故障会触发警报,该警报能够被用来自动地停止工艺过程并且/或者在类似工作条件下继续工作,因为每一导体都能够单独承受正常操作条件所需要的电流强度。
两个导体都源自电桩上相同的触点,并排通过能够被冷却或不被冷却的分离导体(conduct),当到达焊枪(焊炬)的时候两个导体再次相遇从而在焊接尖端提供完全的电流强度。这个解决方案的优点在于,如果使用同样质量的铜,并且导体被分为两个相等的部分,则与冷却液体接触的总面积以等于二的平方根的因子增大,优选地该冷却液体为水。
这个优点可以通过两种方式加以利用。一种可能的方式是使原有的铜的质量保持不变并且减少对电缆冷却系统的需求,从而在该子系统上有所节省。
第二种利用这个优点的可能的方式是使电缆冷却系统保持不变并且将铜的质量减少一半,从而实现同样的与水的接触面积并节省了铜。由于每一导体的容量被限制为总电流强度的一半,焊炬的正确操作依赖于流过两个导体的电流强度的正确的平衡。
如果其中一个导体出现故障,第二导体会承受大于总电流强度一半的电流强度而超载,这种情况会引起过热并最终导致这个导体也出现故障。为了避免这样的故障,可以使用一个机构来触发警报,从而使得焊接工艺控制系统得知导体中发生了电流强度的不平衡。
工艺控制系统能够停止工艺过程并且/或者根据需要修理的系统故障向操作者提出警告,但是停止焊接工艺过程不是必需的。
附图说明
作为这里的描述的补充,并且为了有助于达到对本发明特征的更好的理解,当前的描述性报告附有一张描述本发明的图,但该图不具有限制性质。包括如下附图:
图1为具有本发明所描述的焊枪的实际模型的示意图。
具体实施方式
如附图所示,为用于焊接的焊枪/焊炬本体1,该本体具有测量每一导体3的电流强度的电子称2,并在发生负载不平衡的时候触发警报。为了达到这个目的,微控制器5连接至电流强度霍尔效应传感器6,该传感器不需要与导体建立电接触就能测量每一导体内的电流强度。
编制程序使得微控制器5能够计算平均单独电流强度以及它们的差值的绝对值。如果差值的绝对值超过预设的指定的阀值,则会触发警报。
由于微控制器5靠近导体3,而预计会有高至500安培的电流强度通过该导体,所以电子系统的操作条件是非常严苛的。因此,系统会合并所有的相关装置以防护自己抵抗这些电流强度的效果。
电子称2设计来测量两个导体3内的电流强度。
测量装置2具有两个设备6,能够测量流过焊炬1的两个导体3的电流强度。电流强度测量装置的信号接收一种处理方式,该处理方式适合于工艺过程的需要。处理方式具有两个清晰定义的阶段。
第一阶段包括有源滤波器,该滤波器通过四阶贝塞尔滤波器来过滤所有添加在信号上的高频电噪声,使得低于5Hz的频率能够通过。在此之外,滤波器产生脉冲电流的平均值,这是焊接应用里的通常的技术。
处理方式的第二阶段包括有源整流器,其功能是在其出口点呈现出量值与入口点信号量值相同的正极性信号,而不管入口点信号是正的或者负的。由于仅允许正极性信号,这一点是以下阶段所必需的。这个有源整流器允许对电流强度进行正确的测量,而不管测量装置2里的导体3的方向如何。由于在制造过程中安装导体时没有不正确的位置,所以这是非常重要的方面。
适当处理的信号进入微控制器5,该微控制器具有将模拟信号转化为数值或数字信号的电路。编制程序使得微控制器5能够计算两个电流强度信号的量值之间的差值,并确定两个量值中哪一个最大。
然后,得到这个差值除以两个量值中的较大值的商。如果这个商大于某个确定值,例如25%,则产生警报信号,接下来该警报信号通过任何已知的方式触发电流强度警报。与导体相对应的具有减少的亮度的LED指示灯7也会被点亮。
微控制器5可以连接至温度传感器8,该传感器检测焊枪1的把手是否发生过热。编制程序使得微控制器能够测量来自温度传感器8的信号,然后作为恒温器运行。如果超过程序设置的温度阈值,就会触发警报信号,以激活温度警报继电器。与焊枪把手过热警报相对应的LED指示灯9也会被点亮。
为了更好的抵抗设备内达到的温度,焊炬1可以具有冷却系统11,该系统具有冷却液体的入口和出口点,优选地冷却液体为水。
应用和操作非常简单:焊枪1连接至焊接机和直流电源10,于是,由于将输入电流调整为操作电流的变压器4的作用,电流以相应的电流强度循环流过导体3。在这种情况下,具有测量装置2的微控制器5依靠电流强度表6来测量循环流过两个导体的电流强度。如果两个测量结果的绝对差值和最大电流强度之间的商大于预设的值,微控制器5发出光亮和/或声音以指示导体3内有异常。
如果微控制器5在电流强度中没有检测到任何不规则现象,温度表8同时控制导体。如果这个测量结果大于某个预设值,通过必需的机构并以类似的方式,微控制器5会发出光亮和/或声音以针对异常现象产生警报。
依赖于微控制器5内嵌入的程序,一旦上面描述的故障发生,该微控制器具有断开焊炬1的导体3的电源或者改变操作条件的能力。
如果这些情况都不发生,电源10给导体3供电,将电流分成两部分,从而使得电流的一半循环流过每一导体。因此,在装置的末端两个导体再次相遇,其电流强度叠加起来,焊接工作所需的运行功率在焊炬的尖端达到。
根据这个改善的焊枪,每一导体3的运行电流强度仅仅是设备尖端所需电流强度的一半,于是,如果电子测量装置2检测到这种电流中的不平衡或者如果任一导体的温度高于正常范围,焊炬产生可见的警告。所有这些都与在微控制器5内编制程序所预设的参数相一致。
对本发明的本质和其实际应用进行彻底描述以后,接下来还需要添加的是,如果修改实质上不影响权利要求部分所要求的特征,本发明的形状、材料和制作过程都可以修改。
Claims (5)
1.一种具有双导体的焊枪,用来连接至焊接机并通过直流电供电,该焊枪包括:具有测量电流强度的电子称(2)的焊炬本体(1)、每一导体(3)的传感器(6)以及在这些负载之间产生不平衡时触发警报的机构,为了这个目的,使用了连接至导体的所述电流强度传感器(6)和温度传感器(8)的具有故障或警告指示器的微控制器(5),在这里微控制器(5)里的数据处理将模拟信号转化为数值或数字表示方法,编制程序使得微控制器(5)能够计算两个电流强度信号的量值之间的差值,并且通过两个清楚区分的阶段来确定这两个信号中哪个更大,焊炬可以通过冷却系统(11)来冷却,焊枪的本体具有用于对进来的直流电进行合适的处理的相应的变压器(4)。
2.如上述权利要求1所述的具有双导体的焊枪,具有包括有源滤波器的第一阶段,该滤波器通过四阶贝塞尔滤波器来使得低于5Hz的频率能够通过,接着该滤波器产生脉冲电流的平均值。
3.如上述权利要求1所述的具有双导体的焊枪,具有包括有源整流器的第二阶段,该有源整流器的功能是在其出口点呈现出量值与入口点信号的量值相同的正极性信号,而不管入口点信号是正的或者负的。
4.如上述权利要求1所述的具有双导体的焊枪,具有以下特征:依赖于微控制器(5)获得的值,对于两个测得的电流强度与两个量值中的最大量值之间的商,如果这个商超过某个预设的值,设备会触发相应的警报信号。
5.如上述权利要求1所述的具有双导体的焊枪,具有以下特征:在通过相应传感器(8)测得的温度高于预设值的时候,微控制器(5)激活警报介质(9)。
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ES200502128A ES2267404B1 (es) | 2005-08-31 | 2005-08-31 | Pistola para soldadura con doble conductor. |
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US (1) | US20090236325A1 (zh) |
EP (1) | EP1920866A1 (zh) |
JP (1) | JP2009505839A (zh) |
KR (1) | KR20070110524A (zh) |
CN (1) | CN101146639A (zh) |
CA (1) | CA2605047A1 (zh) |
ES (1) | ES2267404B1 (zh) |
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CN103567679A (zh) * | 2012-08-02 | 2014-02-12 | 吴中华 | 一种改进的焊枪 |
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US9352411B2 (en) | 2008-05-28 | 2016-05-31 | Illinois Tool Works Inc. | Welding training system |
US8367972B2 (en) | 2009-06-11 | 2013-02-05 | Illinois Tool Works Inc. | Systems and methods for diagnosing secondary weld errors |
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2005
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-
2006
- 2006-03-23 EP EP06743411A patent/EP1920866A1/en not_active Withdrawn
- 2006-03-23 JP JP2008528540A patent/JP2009505839A/ja not_active Withdrawn
- 2006-03-23 WO PCT/ES2006/000143 patent/WO2007026033A1/es active Application Filing
- 2006-03-23 CA CA002605047A patent/CA2605047A1/en not_active Abandoned
- 2006-03-23 US US11/721,373 patent/US20090236325A1/en not_active Abandoned
- 2006-03-23 KR KR1020077021485A patent/KR20070110524A/ko not_active Application Discontinuation
- 2006-03-23 MX MX2007008494A patent/MX2007008494A/es not_active Application Discontinuation
- 2006-03-23 CN CNA2006800090124A patent/CN101146639A/zh active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103567679A (zh) * | 2012-08-02 | 2014-02-12 | 吴中华 | 一种改进的焊枪 |
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EP1920866A1 (en) | 2008-05-14 |
ES2267404A1 (es) | 2007-03-01 |
KR20070110524A (ko) | 2007-11-19 |
WO2007026033A1 (es) | 2007-03-08 |
US20090236325A1 (en) | 2009-09-24 |
CA2605047A1 (en) | 2007-03-08 |
ES2267404B1 (es) | 2007-11-16 |
JP2009505839A (ja) | 2009-02-12 |
MX2007008494A (es) | 2007-09-14 |
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