Numerical controller

US2020319620A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2020319620-A1
Application numberUS-202016815425-A
CountryUS
Kind codeA1
Filing dateMar 11, 2020
Priority dateApr 3, 2019
Publication dateOct 8, 2020
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A numerical controller configured for simultaneous control such as to cut a workpiece in order in the direction of a rotary axis by a plurality of tools, in a machine having a plurality of cutter holders fitted individually with the tools and capable of lathe turning, generates movement command data for locating the plurality of tools so as to cut the workpiece with the same depth of cut and controlling respective relative speeds and relative positions of the plurality of tools so that respective cutting points of the tools move back and forth in order; generates interpolation data based on the movement command data; and controls a motor for driving the machine, based on the interpolation data.

First claim

Opening claim text (preview).

1 . A numerical controller configured for simultaneous control such as to cut a workpiece in order in the direction of a rotary axis by a plurality of tools, in a machine having a plurality of cutter holders fitted individually with the tools and capable of lathe turning, the numerical controller comprising: an analyzer configured to generate movement command data for locating the plurality of tools so as to cut the workpiece with the same depth of cut and controlling respective relative speeds and relative positions of the plurality of tools so that respective cutting points of the tools move back and forth in order; an interpolator configured to generate interpolation data based on the movement command data; and a servo controller configured to control a motor for driving the machine, based on the interpolation data. 2 . The numerical controller according to claim 1 , wherein the analyzer generates movement command data such that the respective relative speeds and relative positions of the plurality of tools are controlled so that the respective cutting points of the tools move back and forth in order when a preset condition is satisfied, and the condition is a cutting distance, time or the rotational frequency of a spindle. 3 . The numerical controller according to claim 1 , wherein the analyzer generates movement command data such that the respective relative speeds and relative positions of the plurality of tools are controlled so that the respective cutting points of the tools move back and forth in order when a preset condition is satisfied, and the condition is when a preset threshold is exceeded by the amplitude value of a vibration detected by a vibration sensor or the load value of a servomotor.

Assignees

Inventors

Classifications

  • Control or regulation of the orientation of the tool with respect to the work · CPC title

  • B23Q15/08Primary

    Control or regulation of cutting velocity (B23Q15/12 takes precedence) · CPC title

  • characterised by a controller or microprocessor per axis · CPC title

  • Multi cutting, twin tools contact at same time workpiece, balance cutting · CPC title

  • Digital interpolation · CPC title

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What does patent US2020319620A1 cover?
A numerical controller configured for simultaneous control such as to cut a workpiece in order in the direction of a rotary axis by a plurality of tools, in a machine having a plurality of cutter holders fitted individually with the tools and capable of lathe turning, generates movement command data for locating the plurality of tools so as to cut the workpiece with the same depth of cut and co…
Who is the assignee on this patent?
Fanuc Corp
What technology area does this patent fall under?
Primary CPC classification B23Q15/08. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Thu Oct 08 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).