Control system of machine tool
US-2018267505-A1 · Sep 20, 2018 · US
Roundness measuring machine
US10514244B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10514244-B2 |
| Application number | US-201715689370-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 29, 2017 |
| Priority date | Sep 13, 2016 |
| Publication date | Dec 24, 2019 |
| Grant date | Dec 24, 2019 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A roundness measuring machine includes: a base; a table rotatable relative to the base; a probe configured to scan a surface of a workpiece mounted on the table; a motor configured to rotate the table; and a control device configured to control a rotation of the motor. The control device includes: a starting current detector configured to detect a starting current of the motor; and an acceleration/deceleration time setting unit configured to detect at least one of acceleration time and deceleration time for the motor in accordance with the starting current. The roundness measuring machine can suitably set the acceleration time and the deceleration time for the motor corresponding to the inertia moment of the workpiece mounted on the table.
First claim
Opening claim text (preview).
What is claimed is: 1. A roundness measuring machine comprising: a base; a table rotatable relative to the base; a probe configured to scan a surface of a target workpiece mounted on the table; a motor configured to rotate the table; and a control device configured to control a rotation of the motor, the control device comprising: a starting current detector configured to detect a starting current of the motor; and an acceleration/deceleration time setting unit configured to set at least one of acceleration time and deceleration time for the motor in accordance with the starting current of the motor. 2. The roundness measuring machine according to claim 1 , wherein the roundness measuring machine is configured to measure roundnesses of a plurality of workpieces comprising the target workpiece, and the acceleration/deceleration time setting unit is configured to set in advance an initial value of the at least one of acceleration time and deceleration time based on an inertia moment of one of the plurality of measurable workpieces having a largest weight or a largest diameter, and to update the at least one of acceleration time and deceleration time to be shorter as the detected starting current is smaller.
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10514244B2 cover?
- A roundness measuring machine includes: a base; a table rotatable relative to the base; a probe configured to scan a surface of a workpiece mounted on the table; a motor configured to rotate the table; and a control device configured to control a rotation of the motor. The control device includes: a starting current detector configured to detect a starting current of the motor; and an accelerat…
- Who is the assignee on this patent?
- Mitutoyo Corp
- What technology area does this patent fall under?
- Primary CPC classification G01B5/201. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 24 2019 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).