JPH0256555U - - Google Patents

Info

Publication number
JPH0256555U
JPH0256555U JP13423688U JP13423688U JPH0256555U JP H0256555 U JPH0256555 U JP H0256555U JP 13423688 U JP13423688 U JP 13423688U JP 13423688 U JP13423688 U JP 13423688U JP H0256555 U JPH0256555 U JP H0256555U
Authority
JP
Japan
Prior art keywords
rotor shaft
grinding
floating
electromagnet
cutting table
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP13423688U
Other languages
Japanese (ja)
Other versions
JPH061320Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP13423688U priority Critical patent/JPH061320Y2/en
Priority to DE89310129T priority patent/DE68908327T2/en
Priority to US07/416,842 priority patent/US5024025A/en
Priority to EP89310129A priority patent/EP0363165B1/en
Publication of JPH0256555U publication Critical patent/JPH0256555U/ja
Priority to US07/606,539 priority patent/US5133158A/en
Application granted granted Critical
Publication of JPH061320Y2 publication Critical patent/JPH061320Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Turning (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案装置の概略構成を示すブロツク
図、第２図は切込状態図および第３図は制御動作
のフローチヤートである。 １…ロータ軸、２ａ〜２ｄ…ラジアル電磁石、
４ａ〜４ｄ…アキシヤル電磁石、１０…砥石、１
１…モータ、１２…テーブル、１３，１５…サー
ボモータ、ａ…スピンドル、ｂ…主軸台、ｃ…制
御手段、ｄ…剛性力変更手段、Ｗ…ワーク。 FIG. 1 is a block diagram showing a schematic configuration of the device of the present invention, FIG. 2 is a cutting state diagram, and FIG. 3 is a flowchart of a control operation. 1... Rotor shaft, 2a to 2d... Radial electromagnet,
4a to 4d... Axial electromagnet, 10... Grinding wheel, 1
DESCRIPTION OF SYMBOLS 1... Motor, 12... Table, 13, 15... Servo motor, a... Spindle, b... Headstock, c... Control means, d... Rigidity force changing means, W... Work.

Claims (1)

【実用新案登録請求の範囲】 電磁石の磁力により浮上保持されて回転駆動さ
れるロータ軸の先端に砥石の設けられたスピンド
ルと、前記ロータ軸の浮上位置を検出する位置セ
ンサと、ワークを保持する主軸台と、該主軸台を
移動して研削の切込量を調整する切込テーブルと
、前記位置センサの検出信号を基に電磁石の励磁
電流を調整してロータ軸を目標位置へ浮上保持制
御するとともに、前記切込テーブルの移動を制御
する制御手段とからなり、研削開始時に前記ワー
クと砥石が接触するまで前記切込テーブルを急速
送りするように制御する研削盤の制御装置におい
て、 前記制御手段には前記急速送り中前記電磁石の
励磁電流を調節し、前記ロータ軸の剛性力を研削
時より低下させる剛性力変更手段が具備されてい
ることを特徴とする研削盤の制御装置。[Claims for Utility Model Registration] A spindle with a grindstone at the tip of a rotor shaft that is held floating and rotated by the magnetic force of an electromagnet, a position sensor that detects the floating position of the rotor shaft, and a workpiece that is held. A headstock, a cutting table that moves the headstock to adjust the depth of cut for grinding, and controls to keep the rotor shaft floating at the target position by adjusting the excitation current of the electromagnet based on the detection signal of the position sensor. and a control device for a grinding machine, comprising a control means for controlling movement of the cutting table, and controlling the cutting table to be rapidly fed until the workpiece and the grindstone come into contact at the start of grinding, A control device for a grinding machine, characterized in that the means includes a rigidity force changing means that adjusts the excitation current of the electromagnet during the rapid feeding and lowers the rigidity force of the rotor shaft from that during grinding.
JP13423688U 1988-10-04 1988-10-14 Grinding machine controller Expired - Lifetime JPH061320Y2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP13423688U JPH061320Y2 (en) 1988-10-14 1988-10-14 Grinding machine controller
DE89310129T DE68908327T2 (en) 1988-10-04 1989-10-04 Device for use on a grinding or dressing machine.
US07/416,842 US5024025A (en) 1988-10-04 1989-10-04 Control system of grinding machine
EP89310129A EP0363165B1 (en) 1988-10-04 1989-10-04 Apparatus for use in a grinding or dressing machine
US07/606,539 US5133158A (en) 1988-10-04 1990-10-31 Control system of grinding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13423688U JPH061320Y2 (en) 1988-10-14 1988-10-14 Grinding machine controller

Publications (2)

Publication Number Publication Date
JPH0256555U true JPH0256555U (en) 1990-04-24
JPH061320Y2 JPH061320Y2 (en) 1994-01-12

Family

ID=31392808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13423688U Expired - Lifetime JPH061320Y2 (en) 1988-10-04 1988-10-14 Grinding machine controller

Country Status (1)

Country Link
JP (1) JPH061320Y2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000145774A (en) * 1998-11-17 2000-05-26 Koyo Seiko Co Ltd Control-type magnetic bearing device
JP2008221433A (en) * 2007-03-15 2008-09-25 Jtekt Corp Grinding apparatus
JP2010280039A (en) * 2009-06-05 2010-12-16 Canon Inc Polishing device
JP2011235365A (en) * 2010-05-06 2011-11-24 Jtekt Corp Blade tool contact detecting device of spindle device of machine tool
JP2017222009A (en) * 2016-06-16 2017-12-21 ローランドディー．ジー．株式会社 Rotary shaft unit, and processing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000145774A (en) * 1998-11-17 2000-05-26 Koyo Seiko Co Ltd Control-type magnetic bearing device
JP2008221433A (en) * 2007-03-15 2008-09-25 Jtekt Corp Grinding apparatus
JP2010280039A (en) * 2009-06-05 2010-12-16 Canon Inc Polishing device
JP2011235365A (en) * 2010-05-06 2011-11-24 Jtekt Corp Blade tool contact detecting device of spindle device of machine tool
JP2017222009A (en) * 2016-06-16 2017-12-21 ローランドディー．ジー．株式会社 Rotary shaft unit, and processing device

Also Published As

Publication number Publication date
JPH061320Y2 (en) 1994-01-12

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