JPH0368742U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 shows the displacement from the center P0 of the electrode holder 38 to the center P1 of the electrode 16 when the electrode 16 is not rotated after the pillar center positioning is performed without rotating the electrode 16 according to an embodiment of the invention. A flowchart showing the processing steps up to the calculation, Figure 2 shows 2 with the electrode rotated.
3 is a diagram showing the positional relationship of the electrodes rotated by 180 degrees according to the conventional method, FIG. 4 is a diagram showing the column center positioning method, and FIG.
The figure shows that if the center of the electrode and the center of the electrode holder do not match, the center of the electrode will shift when the electrode is rotated. Figure 6 is a block diagram of a device for realizing the conventional electrical discharge machining method. be. In the figure, 16...electrode, 38...electrode holder, 39...reference sphere. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] In electrical discharge machining equipment that commands the relative movement between a workpiece and an electrode using a numerical control device and processes the workpiece into a desired shape using electrical energy supplied between the workpiece and the electrode. In order to measure the amount of deviation between the center of the electrode and the center of rotation of the electrode, the amount of deviation between the center of the electrode and the center of rotation of the electrode is calculated by detecting the position in a total of three states: a state where the electrode is not rotated, an arbitrary state, and two angles. An electrode rotational deviation measuring device in electric discharge machining, characterized in that it is configured to: