Machining apparatus for noncircular shapes

Details Machining apparatus for noncircular shapes Machining apparatus for noncircular shapes

2007-12-17

2009-08-11

Ashley, Boyer D (Department: 3724)

Turning

Lathe

With program control

C082S133000

Reexamination Certificate

active

07571669

ABSTRACT:
In a noncircular shape machining apparatus, a tool7is moved reciprocally in an X-axis direction by a tool-moving mechanism. A first acceleration sensor6is disposed on a saddle11, which is an immovable section of the tool-moving mechanism. Further, a second acceleration sensor15is disposed on a spindle bearing5of a spindle that holds and causes a workpiece1to rotate. Additionally, displacements of the saddle11and the workpiece1are measured by these two acceleration sensors6and15, and displacement in the relative distance between the workpiece1and the tool7is acquired as relative displacement on the basis of the two displacements that have been obtained. Additionally, the position of the tool7is calculated from the obtained displacement and the output value of an X-axis linear scale12.

REFERENCES:
patent: 4712953 (1987-12-01), Witzel et al.
patent: 5396434 (1995-03-01), Oyama et al.
patent: 5949685 (1999-09-01), Greenwood et al.
patent: 6514018 (2003-02-01), Martinez et al.
patent: 6640677 (2003-11-01), Ueda et al.
patent: 7384220 (2008-06-01), Clark
patent: 5-173619 (1993-07-01), None
esp@cenet patent abstract for Japanese Publication No. 5173619, Publication date Jul. 13, 1993 (1 page).

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