JPH03123117U - - Google Patents

Info

Publication number
JPH03123117U
JPH03123117U JP3252990U JP3252990U JPH03123117U JP H03123117 U JPH03123117 U JP H03123117U JP 3252990 U JP3252990 U JP 3252990U JP 3252990 U JP3252990 U JP 3252990U JP H03123117 U JPH03123117 U JP H03123117U
Authority
JP
Japan
Prior art keywords
bearing
large diameter
diameter part
main shaft
static pressure
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
JP3252990U
Other languages
Japanese (ja)
Other versions
JP2517557Y2 (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 JP1990032529U priority Critical patent/JP2517557Y2/en
Publication of JPH03123117U publication Critical patent/JPH03123117U/ja
Application granted granted Critical
Publication of JP2517557Y2 publication Critical patent/JP2517557Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Turning (AREA)

Description

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

第１図、本考案の実施例を示す側断面図、第２
図および第３図は従来の例を示す側断面図である
。 １は主軸、１ａは大径部、２は小径部、３は主
軸ベース、４は軸受メタル、５ａ，５ｂはラジア
ル方向の静圧軸受、６は工具取付面板、７はチヤ
ツク部材、８ａ，８ｂはスラスト方向の静圧軸受
、９は静圧流体の供給路、１０は主軸ベース、１
１は軸受メタル、１２はラジアル方向の静圧軸受
、１３はモータユニツトである。 Fig. 1 is a side sectional view showing an embodiment of the present invention;
This figure and FIG. 3 are side sectional views showing a conventional example. 1 is the main shaft, 1a is the large diameter part, 2 is the small diameter part, 3 is the main shaft base, 4 is the bearing metal, 5a, 5b are the static pressure bearings in the radial direction, 6 is the tool mounting face plate, 7 is the chuck member, 8a, 8b 1 is a static pressure bearing in the thrust direction, 9 is a supply path for static pressure fluid, 10 is a main shaft base, 1
1 is a bearing metal, 12 is a radial static pressure bearing, and 13 is a motor unit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 駆動装置に連結された主軸の負荷側にラジアル
方向およびスラスト方向の静圧軸受をそなえた主
軸装置において、前記主軸の負荷側軸受部に軸受
中心が大径部になるように大径部と小径部を設け
、前記大径部と小径部にまたがる軸受メタルをそ
なえ、この軸受メタルの内周面に少なくとも大径
部に対向して主軸を軸承するラジアル方向の静圧
軸受を形成し、小径部に対向する部分の両端面に
大径部端面および軸端に固着した工具取付面板と
対向するスラスト方向の静圧軸受をそれぞれ形成
したことを特徴とする主軸装置の静圧軸受。 In a main shaft device that is equipped with static pressure bearings in the radial and thrust directions on the load side of a main shaft connected to a drive device, the load side bearing portion of the main shaft has a large diameter portion and a small diameter portion so that the center of the bearing is the large diameter portion. a bearing metal extending over the large diameter part and the small diameter part, a radial hydrostatic bearing that supports the main shaft at least facing the large diameter part is formed on the inner circumferential surface of the bearing metal, and the small diameter part A static pressure bearing for a spindle device, characterized in that static pressure bearings in a thrust direction facing a tool mounting face plate fixed to a large diameter part end face and a shaft end are formed on both end faces of a portion facing the shaft.
JP1990032529U 1990-03-27 1990-03-27 Hydrostatic bearing for spindle device Expired - Fee Related JP2517557Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990032529U JP2517557Y2 (en) 1990-03-27 1990-03-27 Hydrostatic bearing for spindle device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990032529U JP2517557Y2 (en) 1990-03-27 1990-03-27 Hydrostatic bearing for spindle device

Publications (2)

Publication Number Publication Date
JPH03123117U true JPH03123117U (en) 1991-12-16
JP2517557Y2 JP2517557Y2 (en) 1996-11-20

Family

ID=31535539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990032529U Expired - Fee Related JP2517557Y2 (en) 1990-03-27 1990-03-27 Hydrostatic bearing for spindle device

Country Status (1)

Country Link
JP (1) JP2517557Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1061668A (en) * 1996-08-12 1998-03-06 Nippei Toyama Corp Main spindle device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59174419U (en) * 1983-05-09 1984-11-21 トヨタ自動車株式会社 radial air bearing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59174419U (en) * 1983-05-09 1984-11-21 トヨタ自動車株式会社 radial air bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1061668A (en) * 1996-08-12 1998-03-06 Nippei Toyama Corp Main spindle device

Also Published As

Publication number Publication date
JP2517557Y2 (en) 1996-11-20

Similar Documents

Publication Publication Date Title
JPS61101467U (en)
JPH01108422U (en)
JPH03123117U (en)
JPH0218919U (en)
JPS6327144Y2 (en)
JPH0384416U (en)
JPH0314943U (en)
JPS6292149U (en)
JPS5892516U (en) Dynamic pressure bearing device for rotating units
JPS6150602U (en)
JPS61178642U (en)
JPH01110001U (en)
JPS6394327U (en)
JPS63141323U (en)
JPH0312014U (en)
JPH0456216U (en)
JPS63142422U (en)
JPH0398711U (en)
JPS649001U (en)
JPS62130863U (en)
JPH0373721U (en)
JPS6369815U (en)
JPH0218554U (en)
JPH0468460U (en)
JPH0398323U (en)

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees