| 摘要 |
A gyration balancing calibration free high-speed boring tool allowing fast interchanging between different bore sizes includes an adapter and a boring bar body; a micro-eccentric bore on the adapter to accommodate a pivoting shaft; a V-shaped ring groove being disposed to the pivoting shaft; a securing and a locating threaded holes being provided on the adapter; an eccentric locating recess being provided to each threaded hole; a securing screw being each disposed to a locating pin and an elastic locating screw for foolproof purpose; the boring bar body being tightly contact with the adapter firmly secured to the adapter to provide excellent rigidity.
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