WO2018107310A1 - Composite welding apparatus and composite welding method - Google Patents
Composite welding apparatus and composite welding method Download PDFInfo
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- WO2018107310A1 WO2018107310A1 PCT/CN2016/109389 CN2016109389W WO2018107310A1 WO 2018107310 A1 WO2018107310 A1 WO 2018107310A1 CN 2016109389 W CN2016109389 W CN 2016109389W WO 2018107310 A1 WO2018107310 A1 WO 2018107310A1
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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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
Definitions
- the invention belongs to the field of automatic welding technology, and specifically belongs to a composite welding device and a composite welding method.
- Composite welding technology is widely used in industry. Because laser and arc are the hazards to the human body, in the actual welding operation, in order to facilitate the automatic welding process, the composite welding torch is usually installed on the welding robot or CNC machine tool. The working instructions are issued by the robot or the numerical control machine tool to the laser, the welding machine and the tooling fixture to realize several parts of the coordination and linkage work. No matter which welding process is used, waste products will be produced. At present, the control of product quality in industrial manufacturing is more timely monitoring technology. When the welding is completed, the distribution of the temperature field of the molten pool also has the quality of the weld. Great impact.
- the composite welding device of the invention can timely monitor the welding quality, adjust the temperature field temperature of the molten pool, and ensure the quality of the weld seam, and the invention also provides a composite welding method
- the composite welding device comprises a welding power source, a welding torch, a laser, a supporting system, and the laser is irradiated on the workpiece at the welding spot generated by the welding gun; and the supporting system is further provided with a welding seam monitoring instrument and a temperature measuring instrument. And connected with a heat sink.
- the support system is disposed on a movable conveyor belt, a welding gun and a laser are disposed at a front end of the support system, and a heat dissipation device is disposed on one side of the laser, and a weld inspection instrument and a temperature measuring instrument are disposed on one side of the welding gun.
- the weld monitoring instrument is an ultrasonic weld seam detector.
- the temperature measuring instrument is an infrared thermometer.
- the heat dissipating device is a wind pump, and the air outlet of the wind pump is provided with an adjustment structure.
- the adjusting mechanism is that two metal plates perpendicular to each other are driven by the motor at the air outlet.
- the composite welding method corresponding to the device comprises the following steps:
- Step 1 After the laser and the welding torch cooperate to weld the workpiece, the temperature value of the welding is fed back to the computer through the infrared thermometer, and the temperature field distribution map is formed after the computer processes the data.
- Step 2 After analyzing the temperature field data, determine the influence of the temperature in the molten pool on the quality of the weld; affect the heat sink, and calculate the size of the air outlet of the heat sink and the position of the heat sink. If there is no impact, proceed directly to step 3.
- Step 3 The ultrasonic weld seam detector detects the weld quality and feeds the weld information to the staff through a computer. Complete a complete welding process.
- the temperature field distribution of the molten pool can be detected in time, and timely temperature regulation can be performed to improve the quality of the weld seam, and the weld monitoring instrument is
- the timely detection of weld quality can reflect the weld quality in time, and has the positive effect of timely feedback and saving capital for industrial production.
- Figure 1 is a schematic view of the structure of the present invention
- the composite welding device comprises: a welding power source, a welding torch 2, a laser 1, a supporting system, and the laser is irradiated on the workpiece 7 at the welding spot generated by the welding torch; wherein the supporting system is further provided with Weld monitoring instrument 3 and temperature measuring instrument 4, and connected with a heat sink; said branch
- the support system is arranged on a movable conveyor belt, a welding gun and a laser are arranged at the front end of the support system, and a heat dissipation device is arranged on one side of the laser, and a weld inspection instrument and a temperature measuring instrument are arranged on one side of the welding gun; the welding torch and the laser pass through the hydraulic cylinder
- the spherical rotating bearing is coupled to the support system to enable the welding torch and the laser to work in conjunction with the welding.
- the welding seam monitoring instrument is an ultrasonic welding seam detector; the temperature measuring instrument is an infrared thermometer; the measuring end of the ultrasonic welding seam detector and the infrared thermometer is controlled by a robot mounted on the supporting system, and is accurate
- the measurement of the weld seam 6 requires a measurement position.
- the heat dissipating device is a wind pump, and the air outlet of the air pump is provided with an adjusting structure, wherein the adjusting mechanism is two metal plates that are perpendicular to each other through a servo motor at the air outlet; Adjusting the size of the outlet of the air pump can accurately adjust the temperature of the molten pool, and the air outlet duct is tapered.
- the composite welding method corresponding to the device comprises the following steps:
- Step 1 After the laser and the welding torch cooperate to weld the workpiece, the infrared energy is focused on the photoelectric detector by the infrared thermometer, and converted into a corresponding electrical signal; the signal passes through the amplifier and the signal processing circuit according to the internal algorithm of the instrument and After the target emissivity is corrected, it is converted into the temperature value of the weld pool to be tested, and the temperature value is fed back to the overall controller.
- the distribution of the temperature field is calculated by applying the double elliptic distribution + double ellipsoid volume distribution + peak linear increasing - logarithmic curve rotating body" heat source mode.
- Step 2 After analyzing the temperature field data, determine the influence of the temperature in the molten pool on the quality of the weld; affect the heat sink, and calculate the size of the air outlet of the heat sink and the position of the heat sink. If there is no impact, proceed directly to step 3.
- Step 3 The ultrasonic weld seam detector detects the weld quality, firstly measures the length of the probe leading edge, then measures the K value of the probe, adjusts the scanning speed, and adjusts the detection sensitivity after completing the distance-amplitude curve drawing in the computer. ,probe.
- the weld information is fed back to the staff through a computer. Complete a complete welding process.
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Abstract
Disclosed is a composite welding apparatus, comprising a welding power source, a welding gun (2), a laser (1) and a support system, wherein the laser irradiates a workpiece (7) at a welding spot produced by the welding gun, characterised in that the support system is further provided with a welding seam monitor (3) and a temperature measuring instrument (4), and a heat-radiating device (5) is connected to the support system. Disclosed is a composite welding method, comprising the following steps: step 1, after the laser (1) and the welding gun (2) cooperate to weld the workpiece (7), an infrared thermometer feeds back the temperature value at the weld to a computer, and the computer processes data and then forms a temperature field distribution map; step 2, after analysing temperature field data, determining the impact of the temperature in a molten pool on the welding seam quality, and if same has an impact, enabling the heat-radiating device, and specifically calculating the size of an air port of the heat-radiating device and the required heat-radiation position, and if same has no impact, directly proceeding to step 3; and step 3, an ultrasonic welding seam detector performing detection of the welding seam quality, and the computer feeding back welding seam information to operating personnel, so as to complete the entire welding process. The composite welding apparatus and the composite welding method detect the temperature field distribution of the molten pool in a timely manner, and perform timely temperature adjustment, wherein same can improve the quality of the welding seam, and timely detection of the quality of the welding seam by the welding seam monitor can reflect the quality of the welding seam in a timely manner.
Description
本发明属于自动化焊接技术领域,具体属于复合焊接装置和复合焊接方法。The invention belongs to the field of automatic welding technology, and specifically belongs to a composite welding device and a composite welding method.
复合焊接技术在工业上应用广泛,由于激光和电弧是对人体存在危害的作业方式,而在实际焊接作业时,为了便于实现自动化焊接过程,复合焊枪通常安装在焊接机器人或数控机床上,焊接过程由机器人或数控机床向激光器、焊机、工装卡具发出工作指令,实现几部分协调联动工作。而无论采用哪种焊接工艺,均会产生废品,目前,工业制造中对产品质量的控制更多的是采用及时监控技术,而在焊接完成时,熔池温度场的分布情况对焊缝质量也有很大影响。Composite welding technology is widely used in industry. Because laser and arc are the hazards to the human body, in the actual welding operation, in order to facilitate the automatic welding process, the composite welding torch is usually installed on the welding robot or CNC machine tool. The working instructions are issued by the robot or the numerical control machine tool to the laser, the welding machine and the tooling fixture to realize several parts of the coordination and linkage work. No matter which welding process is used, waste products will be produced. At present, the control of product quality in industrial manufacturing is more timely monitoring technology. When the welding is completed, the distribution of the temperature field of the molten pool also has the quality of the weld. Great impact.
发明内容Summary of the invention
本发明的复合焊接装置,能够及时监测焊接质量,并调整熔池温度场温度,保证焊缝质量,本发明还提供了复合焊接方法The composite welding device of the invention can timely monitor the welding quality, adjust the temperature field temperature of the molten pool, and ensure the quality of the weld seam, and the invention also provides a composite welding method
复合焊接装置:包括焊接电源、焊枪、激光器、支撑系统,激光器照射在焊枪所产生的焊点处的工件上;其特征在于,所述的支撑系统上还设置有焊缝监测仪器以及温度测量仪器,并连接有散热装置。The composite welding device comprises a welding power source, a welding torch, a laser, a supporting system, and the laser is irradiated on the workpiece at the welding spot generated by the welding gun; and the supporting system is further provided with a welding seam monitoring instrument and a temperature measuring instrument. And connected with a heat sink.
进一步的,所述的支撑系统设置在可移动的传送带上,支撑系统的前端设置焊枪及激光器,并在激光器的一侧设置散热装置,在焊枪的一侧设置焊缝检测仪器和温度测量仪器。Further, the support system is disposed on a movable conveyor belt, a welding gun and a laser are disposed at a front end of the support system, and a heat dissipation device is disposed on one side of the laser, and a weld inspection instrument and a temperature measuring instrument are disposed on one side of the welding gun.
进一步的,所述的焊缝监测仪器为超声波焊缝检测仪。Further, the weld monitoring instrument is an ultrasonic weld seam detector.
进一步的,所述的温度测量仪器为红外线测温仪。Further, the temperature measuring instrument is an infrared thermometer.
进一步的,所述的散热装置为风泵,且所述的风泵的出风口处设置有调节
结构。Further, the heat dissipating device is a wind pump, and the air outlet of the wind pump is provided with an adjustment
structure.
进一步的,所述的调节机构为在出风口处,通过电机带动相互垂直的两块金属板。Further, the adjusting mechanism is that two metal plates perpendicular to each other are driven by the motor at the air outlet.
本装置对应的复合焊接方法,包括以下步骤:The composite welding method corresponding to the device comprises the following steps:
步骤1、在激光器与焊枪配合将工件焊接好后,通过红外线测温仪,将焊接处温度值反馈给计算机,计算机处理数据后形成温度场分布图。 Step 1. After the laser and the welding torch cooperate to weld the workpiece, the temperature value of the welding is fed back to the computer through the infrared thermometer, and the temperature field distribution map is formed after the computer processes the data.
步骤2、对温度场数据进行分析后,判断熔池内温度对焊缝质量的影响;有影响,启用散热装置,并具体计算散热装置风口的大小及需要散热位置。没有影响,则直接进行步骤3。 Step 2. After analyzing the temperature field data, determine the influence of the temperature in the molten pool on the quality of the weld; affect the heat sink, and calculate the size of the air outlet of the heat sink and the position of the heat sink. If there is no impact, proceed directly to step 3.
步骤3、超声波焊缝检测仪对焊缝质量进行检测,并通过计算机将焊缝信息反馈给工作人员。完成一个完整的焊接过程。 Step 3. The ultrasonic weld seam detector detects the weld quality and feeds the weld information to the staff through a computer. Complete a complete welding process.
通过将温度测量仪器,散热装置同时与焊枪及激光器集成在支撑系统的前端,能够及时检测熔池的温度场分布,并进行及时的温度调控,能够提高焊缝的质量,而焊缝监测仪器对焊缝质量的及时检测能够及时反映焊缝质量,对于产业化生产,具有反馈及时,节省资本的积极效果。By integrating the temperature measuring instrument and the heat dissipating device with the welding torch and the laser at the front end of the supporting system, the temperature field distribution of the molten pool can be detected in time, and timely temperature regulation can be performed to improve the quality of the weld seam, and the weld monitoring instrument is The timely detection of weld quality can reflect the weld quality in time, and has the positive effect of timely feedback and saving capital for industrial production.
图1是本发明的结构示意图;Figure 1 is a schematic view of the structure of the present invention;
图中,1、激光器;2、焊枪;3、焊缝监测仪器;4、温度测量仪器5、散热装置;6、焊缝;7、工件。In the figure, 1, laser; 2, welding torch; 3, weld monitoring instrument; 4, temperature measuring instrument 5, heat sink; 6, weld; 7, workpiece.
参照附图1,复合焊接装置:包括焊接电源、焊枪2、激光器1、支撑系统,激光器照射在焊枪所产生的焊点处的工件7上;其特征在于,所述的支撑系统上还设置有焊缝监测仪器3以及温度测量仪器4,并连接有散热装置;所述的支
撑系统设置在可移动的传送带上,支撑系统的前端设置焊枪及激光器,并在激光器的一侧设置散热装置,在焊枪的一侧设置焊缝检测仪器和温度测量仪器;焊枪、激光器通过液压缸配合球形转动轴承连接在支撑系统上,使焊枪及激光器能够配合焊接工作。所述的焊缝监测仪器为超声波焊缝检测仪;所述的温度测量仪器为红外线测温仪;超声波焊缝检测仪与红外线测温仪的测量端通过安装在支撑系统上的机械手控制,准确检测焊缝6需要测量位置。所述的散热装置为风泵,且所述的风泵的出风口处设置有调节结构,所述的调节机构为在出风口处,通过伺服电机带动相互垂直的两块金属板;通过金属板调整风泵出口的大小,可以准确的调控熔池温度,风泵出风管为锥形。Referring to Figure 1, the composite welding device comprises: a welding power source, a welding torch 2, a laser 1, a supporting system, and the laser is irradiated on the workpiece 7 at the welding spot generated by the welding torch; wherein the supporting system is further provided with Weld monitoring instrument 3 and temperature measuring instrument 4, and connected with a heat sink; said branch
The support system is arranged on a movable conveyor belt, a welding gun and a laser are arranged at the front end of the support system, and a heat dissipation device is arranged on one side of the laser, and a weld inspection instrument and a temperature measuring instrument are arranged on one side of the welding gun; the welding torch and the laser pass through the hydraulic cylinder The spherical rotating bearing is coupled to the support system to enable the welding torch and the laser to work in conjunction with the welding. The welding seam monitoring instrument is an ultrasonic welding seam detector; the temperature measuring instrument is an infrared thermometer; the measuring end of the ultrasonic welding seam detector and the infrared thermometer is controlled by a robot mounted on the supporting system, and is accurate The measurement of the weld seam 6 requires a measurement position. The heat dissipating device is a wind pump, and the air outlet of the air pump is provided with an adjusting structure, wherein the adjusting mechanism is two metal plates that are perpendicular to each other through a servo motor at the air outlet; Adjusting the size of the outlet of the air pump can accurately adjust the temperature of the molten pool, and the air outlet duct is tapered.
本装置对应的复合焊接方法,包括以下步骤:The composite welding method corresponding to the device comprises the following steps:
步骤1、在激光器与焊枪配合将工件焊接好后,通过红外线测温仪,红外能量聚焦在光电探测仪上并转变为相应的电信号;该信号经过放大器和信号处理电路按照仪器内部的算法和目标发射率校正后转变为被测焊缝熔池的温度值,将温度值反馈给总控制器。应用双椭圆分布+双椭球体积分布+峰值线性递增-对数曲线旋转体”热源模式计算其温度场形成分布图。 Step 1. After the laser and the welding torch cooperate to weld the workpiece, the infrared energy is focused on the photoelectric detector by the infrared thermometer, and converted into a corresponding electrical signal; the signal passes through the amplifier and the signal processing circuit according to the internal algorithm of the instrument and After the target emissivity is corrected, it is converted into the temperature value of the weld pool to be tested, and the temperature value is fed back to the overall controller. The distribution of the temperature field is calculated by applying the double elliptic distribution + double ellipsoid volume distribution + peak linear increasing - logarithmic curve rotating body" heat source mode.
步骤2、对温度场数据进行分析后,判断熔池内温度对焊缝质量的影响;有影响,启用散热装置,并具体计算散热装置风口的大小及需要散热位置。没有影响,则直接进行步骤3。 Step 2. After analyzing the temperature field data, determine the influence of the temperature in the molten pool on the quality of the weld; affect the heat sink, and calculate the size of the air outlet of the heat sink and the position of the heat sink. If there is no impact, proceed directly to step 3.
步骤3、超声波焊缝检测仪对焊缝质量进行检测,先进行探头前沿长度的测量,再进行探头的K值测量,调节扫描速度,在计算机内完成距离-波幅曲线的绘制后,调节探伤灵敏度,探测。并通过计算机将焊缝信息反馈给工作人员。完成一个完整的焊接过程。
Step 3. The ultrasonic weld seam detector detects the weld quality, firstly measures the length of the probe leading edge, then measures the K value of the probe, adjusts the scanning speed, and adjusts the detection sensitivity after completing the distance-amplitude curve drawing in the computer. ,probe. The weld information is fed back to the staff through a computer. Complete a complete welding process.
Claims (7)
- 复合焊接装置:包括焊接电源、焊枪、激光器、支撑系统,激光器照射在焊枪所产生的焊点处的工件上;其特征在于,所述的支撑系统上还设置有焊缝监测仪器以及温度测量仪器,并连接有散热装置。The composite welding device comprises a welding power source, a welding torch, a laser, a supporting system, and the laser is irradiated on the workpiece at the welding spot generated by the welding gun; and the supporting system is further provided with a welding seam monitoring instrument and a temperature measuring instrument. And connected with a heat sink.
- 根据权利要求1所述的复合焊接装置,其特征在于:所述的支撑系统设置在可移动的传送带上,支撑系统的前端设置焊枪及激光器,并在激光器的一侧设置散热装置,在焊枪的一侧设置焊缝检测仪器和温度测量仪器。The hybrid welding apparatus according to claim 1, wherein said supporting system is disposed on a movable conveyor belt, a welding gun and a laser are disposed at a front end of the supporting system, and a heat dissipating device is disposed on one side of the laser, in the welding gun A weld inspection instrument and a temperature measuring instrument are provided on one side.
- 根据权利要求2所述的复合焊接装置,其特征在于:所述的焊缝监测仪器为超声波焊缝检测仪。The hybrid welding apparatus according to claim 2, wherein said weld monitoring instrument is an ultrasonic weld seam detector.
- 根据权利要求2所述的复合焊接装置,其特征在于:所述的温度测量仪器为红外线测温仪。The hybrid welding apparatus according to claim 2, wherein said temperature measuring instrument is an infrared thermometer.
- 根据权利要求3或4所述的复合焊接装置,其特征在于:所述的散热装置为风泵,且所述的风泵的出风口处设置有调节结构。The hybrid welding apparatus according to claim 3 or 4, wherein the heat dissipating device is a wind pump, and an adjustment structure is provided at an air outlet of the air pump.
- 根据权利要求5所述的复合焊接装置,其特征在于:所述的调节机构为在出风口处,通过电机带动相互垂直的两块金属板。The hybrid welding apparatus according to claim 5, wherein the adjusting mechanism is two metal plates that are perpendicular to each other by the motor at the air outlet.
- 根据权利要求6所述的复合焊接装置,其特征在于:本装置对应的复合焊接方法,包括以下步骤:The hybrid welding apparatus according to claim 6, wherein the composite welding method corresponding to the apparatus comprises the following steps:步骤1、在激光器与焊枪配合将工件焊接好后,通过红外线测温仪,将焊接处温度值反馈给计算机,计算机处理数据后形成温度场分布图。Step 1. After the laser and the welding torch cooperate to weld the workpiece, the temperature value of the welding is fed back to the computer through the infrared thermometer, and the temperature field distribution map is formed after the computer processes the data.步骤2、对温度场数据进行分析后,判断熔池内温度对焊缝质量的影响;有影响,启用散热装置,并具体计算散热装置风口的大小及需要散热位置。没有影响,则直接进行步骤3。Step 2. After analyzing the temperature field data, determine the influence of the temperature in the molten pool on the quality of the weld; affect the heat sink, and calculate the size of the air outlet of the heat sink and the position of the heat sink. If there is no impact, proceed directly to step 3.步骤3、超声波焊缝检测仪对焊缝质量进行检测,并通过计算机将焊缝信息 反馈给工作人员。完成一个完整的焊接过程。 Step 3. The ultrasonic weld seam detector detects the weld quality and welds the weld information through the computer. Feedback to the staff. Complete a complete welding process.
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CN109978853A (en) * | 2019-03-22 | 2019-07-05 | 大连大学 | Welding position and weld seam deviation calculation method in a kind of straight bead laser assembly solder |
CN113199164A (en) * | 2021-04-02 | 2021-08-03 | 杭州电子科技大学 | Welding method for real-time monitoring of welding quality |
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