Adjustable boring bar provided with hard metal shifting tip for

Details Adjustable boring bar provided with hard metal shifting tip for Adjustable boring bar provided with hard metal shifting tip for

1975-05-02

1977-01-25

Vlachos, Leonidas

Cutting by use of rotating axially moving tool

Tool-support with means to move tool relative to tool-support

To move radially

29 96, B23B 2910

Patent

active

040048586

ABSTRACT:
The adjustable boring bar developed for metal working, and equipped with hard metal shifting tips consists of a boring bar shaft connected to the machine-tool, of a boring head adjustably guided as compared to the boring bar shaft and provided with shifting tip, as well as of elements fastening and adjusting the boring head. The boring bar shaft is provided with cylindrical bore including an angle with the symmetry line, as well as with radial slot, in the said bore a cylindrically developed boring head is located, on the cylindrical mantle of which flattening is to be found. Normal to the slot, setting and clamping element -- e.g. pinned adjusting screw -- is located. In the boring head, parallel to its centerline, an adjusting screw serving for the rough adjustment is to be found, whereas in the boring bar shaft a stop element -- e.g. a dowel pin -- of this adjusting screw can be found.
In order to achieve the fine adjustment, a fine adjusting device can be arranged in the boring bar shaft or in the boring head. d
The adjustable boring bar renders possible the simple handling, the safe and vibration-free clamping, a wide adjustability of the diameter, thus the economic machining, and its production is inexpensive.

REFERENCES:
patent: 2231469 (1941-02-01), Hassig
patent: 2998736 (1961-09-01), Cloutier et al.
patent: 3013450 (1961-12-01), Yogus
patent: 3433104 (1969-03-01), Milewski et al.
patent: 3704958 (1972-12-01), Gulibon et al.
patent: 3801213 (1974-04-01), Eversole

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