Machining environment measurement device
US-11440152-B2 · Sep 13, 2022 · US
Machine tool and detection method
US12202049B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12202049-B2 |
| Application number | US-202017594262-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 30, 2020 |
| Priority date | Apr 11, 2019 |
| Publication date | Jan 21, 2025 |
| Grant date | Jan 21, 2025 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A machine tool ( 1 ) includes: a front spindle ( 10 ) having a front chuck ( 12 ); a rear spindle ( 20 ) having a rear chuck ( 22 ); a controller ( 50 ) configured to cause the rear chuck ( 22 ) to perform a fastening operation for fastening a work (W) fastened to the front chuck ( 12 ) to the rear chuck ( 22 ); and a detector ( 60 ) configured to detect an abnormality caused by the fastening operation by the rear chuck ( 22 ), based on measurement data associated with a vibration of at least one of the front chuck ( 12 ) and the rear chuck ( 22 ).
First claim
Opening claim text (preview).
The invention claimed is: 1. A machine tool comprising: a first spindle having a first chuck; a second spindle having a second chuck; a controller configured to cause the second chuck to perform a fastening operation for fastening a work fastened to the first chuck to the second chuck; and a detector configured to detect an abnormality caused by the fastening operation by the second chuck, based on measurement data associated with a vibration of at least one of the first chuck and the second chuck. 2. The machine tool according to claim 1 , wherein the measurement data include data measured after the second chuck comes into contact with the work due to the fastening operation by the second chuck and before a tool comes into contact with the work subsequent to the fastening operation by the second chuck. 3. The machine tool according to claim 1 , comprising a vibration sensor configured to acquire the measurement data. 4. The machine tool according to claim 1 , wherein the controller is configured to cause the second chuck to perform the fastening operation in a state in which the first spindle and the second spindle are rotated in synchronization with each other and, at least in a case in which the detector does not detect an abnormality, cause continuous machining of the work. 5. The machine tool according to claim 1 , wherein the detector determines the presence/absence of an abnormality based on the presence/absence of an increase in intensity of the vibration compared to a case in which there is not an abnormality.
Assignees
Inventors
Classifications
Turning-machines with two or more working-spindles, e.g. in fixed arrangement · CPC title
for indicating or measuring vibration · CPC title
for indicating or measuring the holding action of work or tool holders (B23Q3/16 takes precedence) · CPC title
Vibration sensors · CPC title
for turning-machines with a plurality of working-spindles · CPC title
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- What does patent US12202049B2 cover?
- A machine tool ( 1 ) includes: a front spindle ( 10 ) having a front chuck ( 12 ); a rear spindle ( 20 ) having a rear chuck ( 22 ); a controller ( 50 ) configured to cause the rear chuck ( 22 ) to perform a fastening operation for fastening a work (W) fastened to the front chuck ( 12 ) to the rear chuck ( 22 ); and a detector ( 60 ) configured to detect an abnormality caused by the fastening o…
- Who is the assignee on this patent?
- Citizen Watch Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B23B25/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 21 2025 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).