Claims
- 1. An electric discharge machine for machining a workpiece, disposed within a main body of the electric discharge machine, by an electric discharge by supplying a machining fluid to a gap between an electrode and the workpiece and supplying pulses to the workpiece while providing the electrode with a jump motion, the jump motion being a periodic motion of the electrode relative to the workpiece, said electric discharge machine comprising:a detector which detects one of a reactive force produced by a machining operation in the gap between the electrode and the workpiece and an amount of a deformation caused in a main body of the electric discharge machine by the reactive force and outputs a detection value; and correction circuitry which corrects a path of the machining operation determining a position of the electrode relative to the workpiece based on the detection value.
- 2. The electric discharge machine as recited in claim 1, wherein said correction circuitry comprises:first means, operatively coupled to said detector, for calculating the deformation of the main body of the electric discharge machine to thereby generate a calculated deformation; and second means, receiving said calculated deformation, for correcting a working path instruction responsive to said calculated deformation.
- 3. The electric discharge machine as recited in claim 1, wherein said correction circuitry comprises:a deformation calculator, operatively coupled to said detector, which calculates the deformation of the main body of the electric discharge machine to thereby generate a calculated deformation; and a compensator, which receives said calculated deformation, and which corrects a working path instruction responsive to said calculated deformation.
- 4. The electric discharge machine as recited in claim 1, wherein said detector comprises detecting means for detecting lengthwise deformation in the main body attributable to said reactive force.
Priority Claims (1)
Number |
Date |
Country |
Kind |
6-303776 |
Dec 1994 |
JP |
|
Parent Case Info
This is a divisional of application Ser. No. 09/396,456, filed Sep. 15, 1999, issued Jul. 14, 2000, as U.S. Pat. No. 6,147, 550, the disclosure of which is incorporated herein by reference, which application is a divisional of application Ser. No. 08/568,682 filed Dec. 7, 1995, issued Oct. 26, 1999, as U.S. Pat. No. 5,973,498.
US Referenced Citations (8)
Foreign Referenced Citations (4)
Number |
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Country |
0 550 765 |
Jul 1993 |
EP |
31 806 |
May 1992 |
JP |
4 31806 |
May 1992 |
JP |
104 333 |
Apr 1993 |
JP |
Non-Patent Literature Citations (2)
Entry |
Translation of “Study on the Characteristics of Electrical Discharge Machining (EDM) in Real Operation,” Journal of the Japan Society of Electrical-Machining Engineers. 20, No. 39, pp. 19-29, 1987. Mohri et al.* |
“Study on The Characteristics of Electrical Discharge Machining (EDM) in Real Operation”, Journal of The Japan Society of Electrical-Machining Engineers. 20, No. 39, pp. 19-29, 1987. Mohri et al. |