| 摘要 |
PURPOSE:To correctly measure the groove shape formed of a walllike member on one side by providing a vertical range finder and horizontal range finders on a supporting frame of a welding machine movable table to obtain the width and depth of the groove face and an inclination of the wall surface. CONSTITUTION:The vertical range finder 1 is fitted on a supporting member of the supporting frame 13 on the welding movable table and the distance to an object below it is measured. In addition, the horizontal range fingers 2 and 3 are fitted on the supporting member 12 fitted rotationally on the supporting frame 13 and the position in the horizontal direction of the object is detected. A data processor DPD (computer) collects distance (position) information in the horizontal direction of the groove wall surface 4 measured by the horizontal range finders 2 and 3 and distance (height; welding groove depth) information of the vertical range finder 1 when the vertical range finder 1 is moved sidewise till just before hitting on the wall surface 4 from the retreating position according to distance information in the horizontal direction. Signals of the range finders 1-3 are taken in a CPU via interfaces of A/D converters AD1-AD3, a counter PC1, etc. Consequently, the welding groove position and shape can be measured efficiently and correctly for the groove having the reverse inclination on the wall surface. |
