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    • 3. 发明专利
    • Outside surface welding method of weld pipe
    • 焊接管外表面焊接方法
    • JPS6149774A
    • 1986-03-11
    • JP16877584
    • 1984-08-14
    • Kawasaki Steel Corp
    • SHIOZUMI MOTOHITO
    • B23K33/00B23K9/025B23K9/12B23K9/127B23Q35/128
    • B23Q35/128B23K9/1274G05B2219/4701
    • PURPOSE:To execute welding with a high accuracy by deriving exactly a groove center position extending over the overall length of a seaming part, and controlling a weld position by a welding torch based on the groove center position. CONSTITUTION:A groove shape image 14 by a slit light 13 projected vertically toward a groove surface of a seaming part of a weld pipe 11 from a light source 12, and in a state orthogonal to the longitudinal direction of a groove part is brought to image pickup by an image pickup machine 15 and transferred to an arithmetic unit 18 through a memory 17. The arithmetic unit 18 converts its groove shape image 16 to a coordinate, an inclination value of each very small section of the groove shape converted to a coordinate is derived, a position of a groove end point of the groove shape is derived by comparing said inclination value with a reference inclination value of each reference shape, and a groove center position from the position of the right and the left groove end points of the groove shape is derived and transferred to a servo-mechanism part 19. The servo-mechanism 19 controls a welding torch 20 based on said groove center position.
    • 目的:通过准确地导出在接缝部分的整个长度上延伸的凹槽中心位置,并且通过基于凹槽中心位置的焊炬来控制焊接位置,以高精度执行焊接。 构成:通过从光源12向焊接管11的接合部的槽表面垂直地突出并且在与槽部的纵向正交的状态下的狭缝光13的槽形图像14成为图像 通过图像拾取器15拾取并通过存储器17传送到运算单元18.运算单元18将其凹槽形状图像16转换为坐标,将转换为坐标的凹槽形状的每个非常小的部分的倾斜度值 通过将所述倾斜值与每个参考形状的参考倾斜度进行比较,以及从凹槽的右侧和右侧端部的位置开始的槽中心位置导出槽形状的槽端点的位置 形状被导出并传送到伺服机构部19.伺服机构19基于所述凹槽中心位置来控制焊炬20。