Gyration balancing calibration free high-speed boring tool
OwnerHsin-Tien Changinventor
Life of this patent
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Abstract
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.
Claims6
A manufacturing process of a high speed boring tool free of gyration balancing calibration and allowing fast interchange of different bore sizes
- a. Setting up consistent mass of multiple boring bar bodies:
- the mass of each of all boring bar bodies for different bore sizes must be the same;
- and multiple boring bar bodies in different bore size must be modified to share consistent mass and form or falling within a given allowance;
- b. Calibrating to coincide both centers of mass and form of the boring bar body:
- the center of mass and the center of form of the boring bar body must be calibrated for both to coincide with each other thus to prevent producing eccentric vibration when the boring bar body is gyrating at high speed;
- and
- c. Calibration of gyration balancing performed for the assembly of the boring bar body and the adapter:
- calibration of gyration balancing is provided to both of the boring bar body and the adapter when secured to each other by means of a securing system.
A high speed boring tool free of gyration balancing calibration and allowing fast interchange of different bore sizes is comprised of
- an adapter, having one end disposed as a BT40 tapering spindle to be pivoted to a main shaft of a tooling machine, another end on its surface disposed a micro-eccentric bore, on an axle of the micro-eccentric bore being disposed with a securing threaded hole, one or multiple locating slide biased from the center of the threaded hole being disposed to the securing threaded hole, a locating hole being disposed on the adapter at a proper angle biased from the securing threaded hole, one or multiple locating slide biased from the center of the threaded hole being disposed to the locating threaded hole, a recess being provided at where appropriately on the end surface of the adapter;
- each of two limiting ends of the recess defining a limitation point;
- a boring bar body, having a tool rest disposed at its front end to fasten an insert, another end being connected to a pivoting shaft, the pivoting shaft being received in the micro-eccentric bore;
- a V-shaped ring groove being provided in relation to the securing threaded hole;
- and a limiting pin being inserted into the top of the boring bar body at where corresponding to the axle of the limitation point;
- a locating pin being accommodated in the securing threaded hole;
- a securing screw, fastened to the securing threaded hole on the adapter;
- an elastic locating pin accommodated in the locating threaded hole to push the boring bar body up and front to hold tightly against the adapter;
- and
- a locating screw fastened to the locating threaded hole to pack against the elastic locating pin to secure the boring bar body;
- and
Dependencies are inferred from the claim text.