Wire electric discharge machine including control means for holding wire electrode at desired angle
US-9649708-B2 · May 16, 2017 · US
Wire electric discharge machining apparatus
US9010673B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9010673-B2 |
| Application number | US-201113980748-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 16, 2011 |
| Priority date | May 16, 2011 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
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A wire electric discharge machining apparatus according to embodiments includes a wire electrode, a wire supplying unit that supplies the wire electrode, a collecting motor that collects the wire electrode at a predetermined speed, a tension motor that controls a tension of the wire electrode between the wire supplying unit and the collecting motor, a speed calculating unit that calculates a traveling speed of the wire electrode at a predetermined time interval, a speed storing unit that stores the traveling speed calculated by the speed calculating unit, a differential speed calculating unit that calculates a differential speed between a current traveling speed output from the speed calculating unit and a past traveling speed stored in the speed storing unit, and a breakage detecting unit that detects breakage of the wire electrode by comparing the differential speed with a predetermined threshold.
First claim
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The invention claimed is: 1. A wire electric discharge machining apparatus comprising: a wire electrode; a wire supplying unit that supplies the wire electrode; a collecting motor that collects the wire electrode at a predetermined speed; a tension motor that controls a tension of the wire electrode between the wire supplying unit and the collecting motor; a speed calculating unit that calculates a traveling speed at a predetermined location of the wire electrode at a pred…
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Frequently asked questions
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- What does patent US9010673B2 cover?
- A wire electric discharge machining apparatus according to embodiments includes a wire electrode, a wire supplying unit that supplies the wire electrode, a collecting motor that collects the wire electrode at a predetermined speed, a tension motor that controls a tension of the wire electrode between the wire supplying unit and the collecting motor, a speed calculating unit that calculates a tr…
- Who is the assignee on this patent?
- Onodera Yasuo, Nakagawa Takayuki, Mitsubishi Electric Corp
- What technology area does this patent fall under?
- Primary CPC classification B23H7/10. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 21 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).