| 摘要 |
PURPOSE: A jig unit for alignment capable of high alignment and reliability is provided to display a boring apparatus mount reference point by mounting a punching jig. CONSTITUTION: A jig unit for alignment capable of high alignment and reliability comprises a main bar assembly(51), a guide rail(45), a first sliding block, a second sliding block, a third sliding block, an elastic support means, and a light receiving and emitting unit(63). The main bar assembly includes three main bars. Three main bars are arranged on a flat surface in 120 degrees. The guide rail is expanded in a longitudinal direction of the main bar and is fixed to one side of each main bar. The first, the second, and the third sliding blocks are installed in each guide rail to slide.
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