JPS58217245A - Lubricating construction of main spindle - Google Patents

Lubricating construction of main spindle

Info

Publication number
JPS58217245A
JPS58217245A JP10019882A JP10019882A JPS58217245A JP S58217245 A JPS58217245 A JP S58217245A JP 10019882 A JP10019882 A JP 10019882A JP 10019882 A JP10019882 A JP 10019882A JP S58217245 A JPS58217245 A JP S58217245A
Authority
JP
Japan
Prior art keywords
spindle
main shaft
lubricating oil
main
sub
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
JP10019882A
Other languages
Japanese (ja)
Other versions
JPH027787B2 (en
Inventor
Masayoshi Mizukado
水門　正良
Fumio Yokoi
横井　文雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamazaki Mazak Corp
Yamazaki Tekkosho KK
Original Assignee
Yamazaki Mazak Corp
Yamazaki Tekkosho KK
Yamazaki Machinery Works Ltd
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 by Yamazaki Mazak Corp, Yamazaki Tekkosho KK, Yamazaki Machinery Works Ltd filed Critical Yamazaki Mazak Corp
Priority to JP10019882A priority Critical patent/JPS58217245A/en
Publication of JPS58217245A publication Critical patent/JPS58217245A/en
Publication of JPH027787B2 publication Critical patent/JPH027787B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/12—Arrangements for cooling or lubricating parts of the machine
    • B23Q11/121—Arrangements for cooling or lubricating parts of the machine with lubricating effect for reducing friction
    • B23Q11/123—Arrangements for cooling or lubricating parts of the machine with lubricating effect for reducing friction for lubricating spindle bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

PURPOSE:To supply lubricating oil through centrifugal force, by forming a flow path of the lubricating oil in a gap between a main pindle and a submain spindle from the shaft core direction of the main sindle, in lubricating construction formed between the main and the submain spindles and having the submain spindle movable in the shaft core direction of the main spindle in the inside of the rotary main spindle. CONSTITUTION:Lubricating oil 25, which performs lubrication between a main spindle 2 and a submain spindle 10, is supplied to a gap 26 through a lubricating oil supply pipe. And then a lubricating oil path consisting of a gap 27 and supply oil holes 12d, 19c or the like is formed, here the oil 25 is supplied to a part between the main spindle and the submain spindle 10 from the inside of the spindle 10, consequently the oil 25 is supplied by centrifugal force in accordance with rotary motion of the main spindle 2. Supplied lubricating oil 15 is caused to flow out to the outside from an end face 2b of the main spindle 2.

Description

【発明の詳細な説明】 本発明は、横巾ぐり盤、マシニングセンタ等の回転する
主軸を有する工作機械に係り、特に、主軸の内部で主軸
の軸心方向に移動自在に設けられた副主軸を有する工作
機械に適用するに好適な主軸の潤滑構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a machine tool having a rotating main shaft, such as a width boring machine or a machining center, and particularly to a machine tool having a rotating main shaft, such as a side boring machine or a machining center. The present invention relates to a spindle lubrication structure suitable for application to a machine tool having a spindle.

通常、この種の工作機械においでは、移動する副主軸（
＠中ぐり盤等においでは、Ｉ甲ぐり主軸」と呼ばれる。Normally, in this type of machine tool, the moving sub-spindle (
@In boring machines, etc., it is called the I-hole spindle.

）と主軸（横巾ぐり盤等においでは、１フライス主軸」
と呼はれる。）間の潤滑を行なう必要がある。) and spindle (for horizontal width boring machines, etc., one milling spindle)
It is called. ) must be lubricated.

従来、副主軸と主軸間の潤滑方法としては、主軸外周部
から潤滑油を滴下する方法が知られでいたが、この方法
では滴下された潤滑油が主軸の回転に伴なう遠心力で吹
き飛ばされ、主軸と副主軸間に潤滑油が十分に供給され
ず、従って主軸と副主軸間に形成される油膜の強度が低
くなる不都合があった。そこで、主軸の回転柚低く制限
し、十分な量の潤滑油を主軸と副主軸間に供給する対策
が採られていたが、これでは工作機械の加工性能が低ド
してしまう欠点があった。しかも、滴下方式では、崗ド
さルた潤滑油が、主軸外周部に設けられた主軸駆動用歯
車やベアリング等を潤滑する潤滑油と混じり合うために
、潤滑油の変性を防止するためには、滴下する潤滑油と
して歯車等の潤滑に適した低粘度のものを用いる必要が
あり、そうした事も強度の大きな油膜を形成する上での
障害となっていた（副主軸のように主軸の軸方向にのみ
移動する物体に対する潤滑油の粘度は、歯車等の潤滑に
用いるものよりも一般に高粘度とすることが望ましい、
、） 本発明は、０ｉＩ述の欠点を解消すべく、主軸の回転数
を低く制限する必要がなく、主軸と副主軸間に強力な油
膜を形成し得る主軸の潤滑構造を提供することを目的と
するものである。Conventionally, a known method of lubricating between the sub-spindle and the main spindle was to drip lubricating oil from the outer periphery of the main spindle, but in this method, the dropped lubricating oil was blown away by the centrifugal force caused by the rotation of the main spindle. Therefore, lubricating oil is not sufficiently supplied between the main shaft and the sub-main shaft, resulting in a disadvantage that the strength of the oil film formed between the main shaft and the sub-main shaft becomes low. Therefore, countermeasures were taken to limit the rotation of the main spindle to a low level and supply a sufficient amount of lubricating oil between the main spindle and sub-spindle, but this had the disadvantage of reducing the machining performance of the machine tool. . Moreover, in the dripping method, the dripping lubricating oil mixes with the lubricating oil that lubricates the spindle drive gears and bearings provided on the outer circumference of the spindle, so it is necessary to prevent the lubricating oil from denaturing. , it was necessary to use a low-viscosity lubricant suitable for lubricating gears, etc. as the lubricating oil to be dripped, and this was also an obstacle to forming a strong oil film. It is generally desirable that the viscosity of the lubricating oil for an object that moves only in one direction be higher than that used for lubricating gears, etc.
,) In order to eliminate the drawbacks mentioned above, the present invention aims to provide a main shaft lubrication structure that does not require the rotation speed of the main shaft to be low and can form a strong oil film between the main shaft and the sub-main shaft. That is.

即ち、本発明は、副主軸及びスリーブ、ドローバー等の
部材間に、主軸軸心方向から主軸と副主軸間の間隙へ連
通した潤滑油流路を形成し、副主軸の内側よ’）　ｎｉ
前記主軸と副主軸間に潤滑油を供給し得るようにして構
成される。That is, the present invention forms a lubricating oil flow path that communicates from the axial direction of the main shaft to the gap between the main shaft and the sub-main shaft between the sub-main shaft and members such as the sleeve and the drawbar, and forms a lubricating oil flow path that communicates with the gap between the main shaft and the sub-main shaft.
It is constructed so that lubricating oil can be supplied between the main shaft and the sub-main shaft.

以下、図面に示す実施例に基き、本発明を具体的に説明
する。The present invention will be specifically described below based on embodiments shown in the drawings.

第１図は本発明による主軸の潤滑構造の一実施例を示す
断面図である。FIG. 1 is a sectional view showing an embodiment of a main shaft lubrication structure according to the present invention.

工作機械１には、第１図に示すように、断面円形の内筒
２ａの形成された主軸２が複数のベアリング３により回
転自在に支持されており、主軸２の外周部には主軸駆動
用歯車５，５が嵌着されでいる。また、主軸２には複数
の４・−６°が、内筒２・に突出した形で、孟持板７及
び、支持板７と、キー６及び主軸２をそれぞれ接続する
ボルト９等により同右されており内ｆ＋％’２　ａには
、断面円形の内筒１０ａの形成された副生＠ｌ＋　１０
が主軸軸心ＣＬ力方向即ち図中矢印Ａ。As shown in FIG. 1, the machine tool 1 includes a main shaft 2 formed with an inner cylinder 2a having a circular cross section, which is rotatably supported by a plurality of bearings 3. Gears 5, 5 are fitted. In addition, the main shaft 2 has a plurality of 4° and -6° angles that protrude into the inner cylinder 2, and are connected to the same right by bolts 9, etc., which connect the holding plate 7, the support plate 7, the key 6, and the main shaft 2, respectively. The inner cylinder 10a with a circular cross section is formed as a by-product @l+ 10
is the main shaft axis CL force direction, that is, arrow A in the figure.

Ｂ方向に摺動自在に嵌入係合している３副主軸１０のキ
ー６と対向した位置には、キー溝ｌＯｂが矢印Ａ、Ｂ方
向に穿設形成され゛ており、キー溝１０ｂには前述のキ
ー６が嵌入係合し、副主軸１０の主軸２に対する回転の
発生を防止しでいる。副生Ｍｂ　ｌ　Ｏの図中右端は複
数のベアリング１１により回転自在に支持されており、
副主軸ＩＯには副主軸内外を連通ずる形で給油孔ｔＯＣ
が放射状に複数個貫通穿設さｆしている。A key groove lOb is formed in the direction of arrows A and B at a position facing the key 6 of the three sub-main shafts 10 which are slidably engaged in the direction B. The above-mentioned key 6 is fitted and engaged to prevent rotation of the sub-main shaft 10 with respect to the main shaft 2. The right end of the by-product Mb l O in the figure is rotatably supported by a plurality of bearings 11,
The sub-spindle IO has an oil supply hole tOC that communicates between the inside and outside of the sub-spindle.
A plurality of holes are radially perforated f.

また、内筒１０ａの図中左端にはテーパ状の工具保持部
１０ｄが形成されており、更に内筒１０ａには、複数の
断面円形のパイプ状の部品１２、Ｉ及び軸受１２ｂが直
列に接続された円筒状のスリーブ１２が、スリーブ先端
部を内筒ｔＯａに形成された段つき部１２ｅに当接係合
させた形で嵌入係合しでいる。スリーブ１２にはスリー
ブ内外を連通ずる形で給油孔１２ｄが放射状に穿設形成
されており、更にスリーブ１２には複数の断面円形のパ
イプ状の部品１３ａからなるドローバ−１３が、軸受１
２ｂにより矢印Ａ、Ｂ方向に移動自在に支持されている
。Further, a tapered tool holding portion 10d is formed at the left end of the inner cylinder 10a in the figure, and a plurality of pipe-shaped parts 12, I, and bearings 12b each having a circular cross section are connected in series to the inner cylinder 10a. The cylindrical sleeve 12 is fitted in such a manner that the sleeve tip is abutted and engaged with a stepped portion 12e formed in the inner tube tOa. Oil supply holes 12d are radially formed in the sleeve 12 so as to communicate between the inside and outside of the sleeve, and a drawbar 13 consisting of a plurality of pipe-shaped parts 13a with a circular cross section is provided in the sleeve 12.
2b so as to be movable in the directions of arrows A and B.

ドシーバ−１３とスリーブ１２間には、多数の皿ばね１
５がドローバ−１３を被覆する形で縮設されでおり、ド
ローバー１３は副主軸１０に螺合されたロックナツトｌ
Ｏｆに、ストッパー１３ｆを介して当接係合自在に設け
られ、ナツト１０ｆはバー１３のばね１５による過度の
Ｂ方向への移動を禁止している。また、ドローバー１３
のスリーブ１２と同心円状に対向した部分には、バー１
３内外を連通ずる形で給油孔１３Ｃが放射状に穿設形成
されでおり、ドローバ−１３の図中左端には一端をドロ
ーバ−１３（５） 外周部とスリーブ１２内周部とで支持された工具保持爪
１６が係合している１、ド四−バー１３を皿ばね１５の
弾性に抗して図中大印へ方向に移動させると、保持爪先
端１６　ａ’は主軸軸心ＣＬに対して開き、逆に皿ばね
１５の弾性を利用してＢ方向に移動させると、保持爪先
端１６１は軸心ＣＬに対して閉じる。ドローバー１３の
右端には潤滑油給油用ベアリング１９が嵌着しており、
ベアリング１９には潤滑油供給パイプ２０の接続される
給油孔１９ａが、ドローバ−１３にバー内外を連通する
形で放射状に穿設された給油孔１３ｄに対向する形で設
けられている。更にドローバー１３の図中右方にはバイ
ブ２１が給油孔１３ｃ　、１３ｄをパイプ２１外周部と
ドローバ−１３内周部間に生じる間隙２３を介して連通
させる形で、軸心（、Ｌ方向に螺着されており、バイブ
２１、ドローバ−１３、スリーブ１２、副主軸１０及び
主軸２は主軸軸心ＣＬを中心に同心円状に設置されてい
る。A large number of disc springs 1 are provided between the receiver 13 and the sleeve 12.
5 is contracted to cover the drawbar 13, and the drawbar 13 is fitted with a lock nut l screwed onto the sub-main shaft 10.
Of, the nut 10f is provided so as to be able to abut and engage freely via a stopper 13f, and the nut 10f prevents the bar 13 from being moved excessively in the direction B by the spring 15. Also, drawbar 13
A bar 1 is provided in a portion concentrically facing the sleeve 12.
Oil supply holes 13C are formed in a radial manner to communicate between the inside and outside of the drawbar 13, and one end is supported by the outer circumference of the drawbar 13 (5) and the inner circumference of the sleeve 12 at the left end of the drawbar 13 in the figure. When the tool holding claw 16 engages the drive bar 13 in the direction indicated by the large mark in the figure against the elasticity of the disc spring 15, the holding claw tip 16a' aligns with the spindle axis CL. When the retaining claw tip 161 is opened and moved in the B direction using the elasticity of the disc spring 15, the retaining claw tip 161 closes with respect to the axis CL. A lubricating oil supply bearing 19 is fitted on the right end of the drawbar 13.
An oil supply hole 19a to which a lubricating oil supply pipe 20 is connected is provided in the bearing 19 so as to face an oil supply hole 13d that is radially bored in the drawbar 13 so as to communicate the inside and outside of the bar. Further, on the right side of the drawbar 13 in the drawing, a vibrator 21 is arranged so that the oil supply holes 13c and 13d are connected to each other through a gap 23 created between the outer circumference of the pipe 21 and the inner circumference of the drawbar 13. The vibrator 21, the drawbar 13, the sleeve 12, the sub-main shaft 10, and the main shaft 2 are arranged concentrically around the main shaft center CL.

本発明は、以上のような構成を有量るので、（６） 切削等の加丁に際しでは、ドローバ−１３を入方向に抑
圧移動させて保持爪１６を開き、工具２２のテーパシャ
ンク部２２ｂを畠Ｕ主ＭＩＯの工具保持部１０ｄに図中
左方からお方向へ挿入する形で当接係合させ、その状態
でパー１３をＢ方向に移動させて保持爪１６を閉じ、爪
１６により工具２２のプルスタンド２２’ａを把持する
と共にＢ方向へ引っ張り、工具２２を工具保持部１０ｄ
で確実に保持する。次に、歯車５を介して主軸２を所定
方向に回転させると、キー６を介して副主軸ｌｏが工具
２２と共に、更に副主軸１０に螺合したロックナツトｌ
ｏｆ及び段つき部１０ｅに皿はね１５の弾性によって当
接係合しでいるドローバー１３（ドローバー１３は保持
爪１６が工具２２を保持した状態でナラ）１０ｆと当接
係合する。）及びスリーブ１２が回転し、バイブ２１も
ドローバー１３と共に回転する。こうして、工具２２が
回転駆動されることにより、所定の加工動作が行なわれ
でゆくが、中ぐり等を行なう場合には、副主軸１０を工
具２２、スリーブ１２、ドローパー１３等と共に主ｌｌ
ｌ１ｌＩ２に対して入方向に、キー溝ｌＯｂに沿って突
出さることにより行なう。一方、主軸２と副主軸１０間
を潤府する潤滑油２５は、潤滑油供給バイブ２０を介し
てベアリング１９の給油孔１９ａからドローバー１３の
給油孔１３ｄを通ってドローバ−１３とバイブ２１間の
間隙２３に所定の圧力で強制的に注入され、図中矢印で
示すようにＡ方向に圧送され、パー１３の部品１３ａの
接手１３ｅ部分を経由して給油孔１３Ｃからドローバ−
１３とスリーブ１２間の間隙２６に流入する。間隙２６
に流入した潤滑油２５は更に入方向へ流れ、給油孔１２
ｄからスリーブ１２と副主軸１０間の間隙２７に流入し
、給油孔１０ｃを介して副主軸１０と主軸２の間の間隙
２９に流入する。潤滑油２５は間隙２９で油膜を形成し
つつ給油孔ｔＯＣを中心に矢印Ａ、Ｂ方向に流れ、主軸
端面２ｂから外部へ流出する。潤滑油２５はバイブ２０
から所定の圧力で供給され、かつ間隙２３．２６．２７
等から形成される潤滑油流路中を、主軸２、副主軸ｌＯ
、スリーブ１２及びドローバ−１３の回転に伴なう遠心
力が作用した形で間隙２９側へ流れてゆくので、潤滑油
２５は主軸２と副主軸１０間の間隙２９へ円滑かつ確実
に供給される。なお、切削剤３０等は、バイブ２１の内
側を、潤滑油２５と分離された形で、ドローパー１３内
を経由して、工具２２の切削剤供給孔２２Ｃに供給され
る。Since the present invention has many of the above-described configurations, (6) when performing processing such as cutting, the drawbar 13 is pressed and moved in the input direction to open the holding claw 16 and the taper shank portion 22b of the tool 22 is pressed. is inserted into the tool holding part 10d of the Hatake U main MIO from the left side in the figure in the direction shown, and in this state, the par 13 is moved in the direction B to close the holding claw 16, and the claw 16 Grip the pull stand 22'a of the tool 22 and pull it in the direction B to move the tool 22 to the tool holding part 10d.
Hold securely. Next, when the main shaft 2 is rotated in a predetermined direction via the gear 5, the auxiliary main shaft lo is rotated through the key 6 together with the tool 22, and the lock nut l screwed onto the auxiliary main shaft 10 is rotated.
The drawbar 13 (the drawbar 13 is in a rest state with the holding claw 16 holding the tool 22) 10f is brought into abutting engagement with the stepped portion 10e due to the elasticity of the countersunk 15. ) and the sleeve 12 rotate, and the vibrator 21 also rotates together with the drawbar 13. In this way, a predetermined machining operation is performed by rotationally driving the tool 22, but when performing boring or the like, the sub-spindle 10 is rotated along with the tool 22, sleeve 12, drawer 13, etc.
This is done by protruding along the keyway lOb in the incoming direction with respect to l1lI2. On the other hand, the lubricating oil 25 that lubricates between the main shaft 2 and the sub-main shaft 10 is passed from the oil supply hole 19a of the bearing 19 to the oil supply hole 13d of the drawbar 13 via the lubricant supply vibrator 20 between the drawbar 13 and the vibrator 21. It is forcibly injected into the gap 23 at a predetermined pressure, is forced in the direction A as shown by the arrow in the figure, and is fed from the drawbar through the oil supply hole 13C via the joint 13e of the part 13a of the par 13.
13 and the sleeve 12 into the gap 26. Gap 26
The lubricating oil 25 that has flowed into the oil supply hole 12 further flows in the inlet direction.
d into the gap 27 between the sleeve 12 and the sub-main shaft 10, and then into the gap 29 between the sub-main shaft 10 and the main shaft 2 via the oil supply hole 10c. The lubricating oil 25 flows in the directions of arrows A and B around the oil supply hole tOC while forming an oil film in the gap 29, and flows out from the main shaft end surface 2b. Lubricating oil 25 is vibrator 20
is supplied at a predetermined pressure from the gap 23.26.27.
The main shaft 2, the sub-main shaft lO
Since the lubricating oil 25 flows toward the gap 29 side under the influence of centrifugal force caused by the rotation of the sleeve 12 and the drawbar 13, the lubricating oil 25 is smoothly and reliably supplied to the gap 29 between the main shaft 2 and the sub-main shaft 10. Ru. Note that the cutting agent 30 and the like are supplied to the cutting agent supply hole 22C of the tool 22 through the drawper 13 inside the vibrator 21 in a form separated from the lubricating oil 25.

以上説明したように、本発明によれば、副主軸１０及び
スリーブ１２、ドローパー１３等の部材間に、主軸軸心
ＣＬ部から主ＩＩｑｌ１２と副主軸１０間の間隙２９へ
連通した、間隙２３゜２６．２７及び給油孔１０ｃ　、
１２ｄ　、１３ｃ　。As explained above, according to the present invention, there is a gap 23° between the sub-main shaft 10, the sleeve 12, the drawer 13, and other members, which communicates from the main shaft axis CL to the gap 29 between the main IIql 12 and the sub-main shaft 10. 26.27 and oil supply hole 10c,
12d, 13c.

１３ｄ等からなる潤滑油流路を形成し、潤滑油２５を副
主軸１０の内側から主軸２と副主軸１０間に供給するよ
うにしたので、潤滑油２５を主軸２等の回転に伴なう遠
心力等を利用して確実に供給することができ、従来の滴
下方式に比して強力な油膜の形成が可能となるばかりか
、（９） 主軸２０回転数を低く制限する必要がなくなり、工作機
械の加［性能の向−ヒに寄与し得る。ま、−た、潤滑油
２５を副主軸１０内側より供給するので、供給された潤
滑油ＩＯを主軸２の端面２ｂから外部へ流出させ、潤滑
油２５が主軸外周部に設けられた歯車５やベアリング３
側に流出することを防１Ｆでき、潤滑油２５として歯車
５等の潤滑用よりも高い粘度の、従って強力な油膜を形
成し得るものを用いることがａ（能となる。13d etc. is formed, and the lubricating oil 25 is supplied between the main shaft 2 and the sub-main shaft 10 from the inside of the sub-main shaft 10, so that the lubricating oil 25 is supplied as the main shaft 2, etc. rotates. It is possible to reliably supply oil by using centrifugal force, etc., and not only is it possible to form a stronger oil film than the conventional dripping method, but also (9) there is no need to limit the main shaft 20 rotation speed to a low level, It can contribute to improving the performance of machine tools. Also, since the lubricating oil 25 is supplied from the inside of the sub-spindle 10, the supplied lubricating oil IO flows out from the end surface 2b of the main shaft 2, and the lubricating oil 25 flows into the gear 5 and the gears 5 provided on the outer circumference of the main shaft. bearing 3
It is possible to prevent the lubricating oil 25 from leaking to the side, and to use a lubricating oil 25 that has a higher viscosity than that for lubricating the gears 5, etc., and can therefore form a strong oil film.

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

第１図は本発明による主軸の潤滑構造の一実施例を示す
断面図である。。 ■・・・・・・工作機械 ２・・・・・・主軸 ＩＯ・・・・・・副主軸 １０ｃ、１２ｄ、１３ｃ、１３ｄ ・・・・・・・潤滑油流路（給油孔） １２・・・・・・スリーブ １３・・・・・ドローバー ２３　、２６　、２７・・・・・・潤滑油流路（間隙）
（ｌＯ） ２５・・・・潤滑油 ２９・・・・・間隙 ＣＬ・・・・・主軸軸心 特許出願人　　株式会社　山崎鉄工所 代理人　弁理士　相田伸二 （ばか１名） （１１）FIG. 1 is a sectional view showing an embodiment of a main shaft lubrication structure according to the present invention. . ■... Machine tool 2... Main spindle IO... Sub-spindle 10c, 12d, 13c, 13d... Lubricating oil flow path (oil supply hole) 12. ... Sleeve 13 ... Drawbars 23 , 26 , 27 ... Lubricating oil flow path (gap)
(lO) 25...Lubricating oil 29...Gap CL...Spindle center Patent applicant Yamazaki Iron Works Co., Ltd. Agent Patent attorney Shinji Aida (1 idiot) (11)

Claims (1)

【特許請求の範囲】[Claims] 主軸及び前記主軸内に同心円状に設けられ、かつ主軸に
対して主軸軸心方向に移動自在に設けられた副主軸を有
し、前記副主軸中にスリーブ、ドローバ−等の部材を主
軸に対して同心円状に設置した工作機械において、前記
副主軸及び部材間に、主軸軸心方向から主軸と副主軸間
の間隙へ連通した潤滑油流路を形成し、副主軸の内側よ
’ｌ　ｎｆＪ記主軸と副主軸間に潤滑油を供給し得るよ
うにして構成した主軸の潤滑構造。It has a main shaft and a sub-main shaft that is provided concentrically within the main shaft and is movable in the direction of the main shaft axis with respect to the main shaft, and members such as sleeves and drawbars are mounted in the sub-main shaft relative to the main shaft. In a machine tool installed concentrically in a machine tool, a lubricating oil flow path is formed between the sub-spindle and the member, communicating from the direction of the axis of the main spindle to the gap between the main spindle and the sub-spindle, and from the inside of the sub-spindle. A main spindle lubrication structure configured to supply lubricating oil between the main spindle and sub-spindle.
JP10019882A 1982-06-10 1982-06-10 Lubricating construction of main spindle Granted JPS58217245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10019882A JPS58217245A (en) 1982-06-10 1982-06-10 Lubricating construction of main spindle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10019882A JPS58217245A (en) 1982-06-10 1982-06-10 Lubricating construction of main spindle

Publications (2)

Publication Number Publication Date
JPS58217245A true JPS58217245A (en) 1983-12-17
JPH027787B2 JPH027787B2 (en) 1990-02-20

Family

ID=14267599

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10019882A Granted JPS58217245A (en) 1982-06-10 1982-06-10 Lubricating construction of main spindle

Country Status (1)

Country Link
JP (1) JPS58217245A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6239154A (en) * 1985-08-12 1987-02-20 Toshiba Mach Co Ltd Spindle head of machine tool
JPH059848U (en) * 1992-06-10 1993-02-09 東芝機械株式会社 Machine tool spindle head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6239154A (en) * 1985-08-12 1987-02-20 Toshiba Mach Co Ltd Spindle head of machine tool
JPH059848U (en) * 1992-06-10 1993-02-09 東芝機械株式会社 Machine tool spindle head

Also Published As

Publication number Publication date
JPH027787B2 (en) 1990-02-20

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