Wire electrical discharge machine and placement time calculation method
AssigneeFanuc Corporation
InventorsRyou Nishikawa, Shouji Takahashi
Life of this patent
Estimating the term…
Abstract
A wire electrical discharge machine which performs electrical discharge machining on a workpiece, includes: a worktable on which the workpiece is placed; a placement area detector that divides the top surface of the worktable into multiple areas and detects the areas where the workpiece is placed; a placement time measuring unit that measures placement time for which the workpiece is placed on each of the areas detected by the placement area detector; and a cumulative time storage that adds up the placement times measured by the placement time measuring unit for each of the areas as a cumulative time for the area.
Claims13
A wire electrical discharge machine which generates electric discharge at an electrode gap between a wire electrode and a workpiece by applying voltage across the electrode gap to perform electrical discharge machining on the workpiece, comprising:
- a worktable on which the workpiece is placed, wherein the worktable has a top surface;
- a placement area detector configured to divide the top surface of the worktable into a plurality of areas and detect which areas of the plurality of areas in the top surface of the worktable the workpiece is present and which areas of the plurality of areas in the top surface of the worktable the workpiece is not present;
- a placement time measuring unit configured to measure placement time for which the workpiece is placed, on each of the areas detected by the placement area detector;
- and
- cumulative time storage configured to store an accumulation of the placement times measured by the placement time measuring unit as a cumulative time for the area;
- and
- a display device that displays a diagram showing the plurality of areas of the top surface of the worktable and the cumulative time for each of the plurality of areas.
A placement time calculation method for calculating cumulative time for which a workpiece is placed on a worktable having a top surface:
- a placement area detection step to divide the top surface of the worktable into a plurality of areas and detect which areas of the plurality of areas on the top surface of the worktable the workpiece is present and which areas of the plurality of areas in the top surface of the worktable the workpiece is not present;
- a placement time measurement step of measuring placement time for which the workpiece is present on each of the areas detected by the placement area detection step;
- and,
- a cumulative time storing step of accumulating the placement times measured for each area at the placement time measurement step and storing a sum as a cumulative time and
- a displaying step of displaying a diagram showing the plurality of areas of the top surface of the worktable and the cumulative time for each of the plurality of areas.
Dependencies are inferred from the claim text.