Wire collection device of wire electrical discharge machine

Patent metadata

Field	Value
Publication number	US-10835974-B2
Application number	US-201916657559-A
Country	US
Kind code	B2
Filing date	Oct 18, 2019
Priority date	Oct 23, 2018
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

To provide a wire collection device of a wire electrical discharge machine capable of collecting a used wire electrode even while a power supply for the wire electrical discharge machine is not turned off and even during electrical discharge machining. A wire collection device of a wire electrical discharge machine comprises: a first collection box having a wire inlet provided at a top portion; a second collection box having a wire inlet provided at a top portion, housed in the first collection box, and capable of being taken out to the outside through an access port formed in the first collection box; and a partition plate provided to be openable and closable for partitioning the interior of the first collection box into lower space for housing the second collection box and upper space, and for making communication between the lower space and the upper space.

First claim

What is claimed is:

1. A wire collection device of a wire electrical discharge machine for collecting a used wire electrode having been used for electrical discharge machining and fed sequentially, comprising:
a first collection box having a wire inlet provided at a top portion for introduction of the wire electrode;
a second collection box having a wire inlet provided at a top portion for introduction of the wire electrode, housed in the first collection box, and capable of being taken out to the outside through an access port formed in the first collection box; and
a partition member provided to be openable and closable for partitioning the interior of the first collection box into lower space for housing the second collection box and upper space communicating with the wire inlet of the first collection box, and for making communication between the lower space and the upper space, wherein
the wire collection device is configured in such a manner that, while the partition member is opened, the wire electrode is fed through the first collection box and the wire inlet of the second collection box into the second collection box and collected in the second collection box, and
while the partition member is closed, the wire electrode is fed through the wire inlet of the first collection box, and accumulated and collected on the partition member.

2. The wire collection device of the wire electrical discharge machine according to claim 1 , comprising: collection box detection unit for detecting the second collection box having been housed in the first collection box;
first wire detection unit for detecting an upper limit volume of the wire electrode being stacked on the partition member;
second wire detection unit for determining whether the wire electrode being collected and stacked in the second collection box has reached an ejection set volume set in advance for ejection to the outside; and
anti-overflow third wire detection unit for detecting an upper limit volume of the wire electrode being collected and stacked in the second collection box.

3. The wire collection device of the wire electrical discharge machine according to claim 2 , wherein
if the collection box detection unit detects the second collection box and none of the first wire detection unit, the second wire detection unit, and the third wire detection unit makes detection when a wire cutting signal is transmitted, the partition member is opened, and
if both the collection box detection unit and the second wire detection unit make detections when the wire cutting signal is transmitted, the partition member is closed.

4. The wire collection device of the wire electrical discharge machine according to claim 2 , wherein the wire collection device is configured to issue a warning if the second wire detection unit or the third wire detection unit detects the wire electrode.

5. The wire collection device of the wire electrical discharge machine according to claim 3 , wherein the wire collection device is configured to issue a warning if the second wire detection unit or the third wire detection unit detects the wire electrode.

Assignees

• Fanuc Corp

Inventors

• Matake Kazuyoshi

Classifications

• B23H7/108 Primary

  Used wire disposal devices · CPC title

• B23H7/02 Primary

  Wire-cutting · CPC title

• B23H11/00

  Auxiliary apparatus or details, not otherwise provided for · CPC title