| 摘要 |
The present invention relates to a marking device which can conveniently and accurately mark the position of a flange hole installed in the upper part of a dome-shaped workpiece, in order to prevent a problem of delayed work due to overlapping work because of the need to perform an additional checking process upon completion of flange hole marking work, and in order to prevent a problem of repeated work in the first place when the position of the flange hole is found to be wrong during a flange hole installation process by failing to mark the accurate position of the flange hole. The marking device comprises: a fixating device (100) which fixates a guide (300), a movable piece (500), etc. to the upper part of a dome-shaped workpiece; a guide (300) which is installed in the external side of the fixating device (100) in order to move a movable piece, and rotates on the fixating device as a shaft; a movable piece (500) which moves along the guide (300); and a support (700) which is placed at one side of the guide (500) in order to support the guide. |
