Wire electrical discharge machine and auto wire feeding method
AssigneeFanuc Corporation
InventorHikaru Yamane
Life of this patent
Estimating the term…
Abstract
A wire electrical discharge machine having an auto wire feeding function includes: guide parts arranged on a wire feed path along which the wire electrode is fed so as to guide the feeding of the wire electrode; fluid paths formed with the guide parts to supply a compressed fluid to the wire feed path; a compressed fluid supply device to supply the compressed fluid to the fluid paths; a tension detector to detect the tension of the wire electrode; and a control device that controls the compressed fluid supply device so as to supply the compressed fluid to the fluid paths, and based on the detection result from the tension detector, determines whether or not the wire electrode has reached a supply position of one of the fluid paths on the wire feed path to which the fluid has been supplied.
Claims16
A wire electrical discharge machine having an auto wire feeding function for automatically feeding a wire electrode, comprising:
- a supply roller configured to supply the wire electrode;
- a collection roller configured to collect the wire electrode supplied from the supply roller;
- a guide part, provided on a wire feed path along which the wire electrode is conveyed from the supply roller to the collection roller, and configured to guide feeding of the wire electrode;
- a fluid path formed with the guide part to supply a compressed fluid to the wire feed path so as to feed the wire electrode along the wire feed path;
- a compressed fluid supply device including a pump and configured to supply the compressed fluid to the wire feed path through the fluid path;
- a tension detector configured to detect tension of the wire electrode;
- and,
- a control device configured to control the compressed fluid supply device so as to supply the compressed fluid to the fluid path and determine, based on a change in the tension of the wire electrode detected by the tension detector, whether or not the wire electrode has reached a supply position on the wire feed path to which the compressed fluid has been supplied from the fluid path.
An auto wire feeding method for use in a wire electrical discharge machine having an auto wire feeding function for automatically feeding a wire electrode, wherein
- the wire electrical discharge machine comprises:
- a supply roller configured to supply the wire electrode;
- a collection roller configured to collect the wire electrode supplied from the supply roller;
- a guide part, provided on a wire feed path along which the wire electrode is conveyed from the supply roller to the collection roller, and configured to guide feeding of the wire electrode;
- and,
- a fluid path formed with the guide part to supply a compressed fluid to the wire feed path so as to feed the wire electrode along the wire feed path,
- the method comprising:
- a supply step of supplying the compressed fluid to the fluid path;
- a tension detection step of detecting tension of the wire electrode;
- and,
- a determination step of determining whether or not the wire electrode has reached a supply position on the wire feed path to which the compressed fluid is supplied from the fluid path, based on a change in the detected tension of the wire electrode.
Dependencies are inferred from the claim text.