JPS61236444A - Device for vertically feeding slider in machine tool - Google Patents
Device for vertically feeding slider in machine toolInfo
- Publication number
- JPS61236444A JPS61236444A JP7596985A JP7596985A JPS61236444A JP S61236444 A JPS61236444 A JP S61236444A JP 7596985 A JP7596985 A JP 7596985A JP 7596985 A JP7596985 A JP 7596985A JP S61236444 A JPS61236444 A JP S61236444A
- Authority
- JP
- Japan
- Prior art keywords
- slider
- workpiece
- static pressure
- oil pocket
- vertical
- 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.)
- Pending
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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
Description
【発明の詳細な説明】
発明の目的
（産業上の利用分野）
この発明は平面研削盤等の工作機械におけるスライダ上
下送り装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a slider vertical feed device for a machine tool such as a surface grinder.
（従来の技術）
従来のこの種の上下送り装置においては、キサゲ加工さ
れた摺動面に油だまりを設け、スライダの移動に伴う油
のクサビ作用を利用して摺動案内する方法や、あるいは
摺動面にコロ又はローラを介させて金属接触により摺動
案内する方式がとらレテいる。そして、いずれの場合に
も機枠とスライダとの間のガタを少なくするために、カ
ミソリ（ギブ）ｖｃ工って調整したり、ローラに予圧を
付与したりするように構成されていた。(Prior Art) In conventional vertical feeding devices of this type, there are methods in which an oil pool is provided on the scraped sliding surface and the wedge action of the oil accompanying the movement of the slider is used to guide the slider. A method is adopted in which sliding guidance is provided by metal contact using rollers or rollers on the sliding surface. In either case, in order to reduce play between the machine frame and the slider, adjustments are made using a razor (give) or preload is applied to the rollers.
（発明が解決しようとする問題点）
ところが、従来の上下送９装置においては、すきまを小
さくするための構成により摺動部における摩擦抵抗が増
大して、スライダを上下送りする際に大きな送り駆動力
が必要となるばかりでなく、スライダにステンクスリン
プ（たまり落ち）現象が発生しやすくなって、ワーク加
工部に微細な送りを付与することができないという問題
点があった。(Problem to be Solved by the Invention) However, in the conventional vertical feed device, frictional resistance in the sliding portion increases due to the structure for reducing the clearance, and a large feed drive is required when vertically feeding the slider. This method not only requires a great deal of force, but also tends to cause the slider to become susceptible to stiffness limp, making it impossible to apply fine feed to the workpiece processing section.
発明の構成
（問題点を解決するための手段）
この発明はＬ記した問題点を解決するためになされたも
のであり、ワーク加工部８を備えたスライダ４を摺動面
１９，２１を介して機枠１に対し昇降可能に支持し、ワ
ーク加工部Ｂ側の前記摺動面１９に静圧力を作用させる
第１のオイルポケット２０を設けるとともに、ワーク加
工部８とは反対側の前記摺動面２１にワーク加工部８側
の静圧力よりも大きな静圧力を作用させる第２のオイル
ポケット２２を配設し、前記スライダ４にその自重を支
持する状態でそれに上下方向の送り力を付与する上下送
り機構１７．２６を連結し、その上下送り機構１７．２
６を作動させてワーク加工部８によるワーク１０に対す
る加工量を設定するようにしたものである。Structure of the Invention (Means for Solving the Problems) This invention has been made to solve the problems listed in L, and the slider 4 provided with the workpiece machining section 8 is moved through the sliding surfaces 19 and 21. A first oil pocket 20 is provided which is supported movably up and down relative to the machine frame 1 and which applies static pressure to the sliding surface 19 on the side of the workpiece processing section B. A second oil pocket 22 is provided on the moving surface 21 to apply a static pressure larger than the static pressure on the workpiece processing section 8 side, and a vertical feeding force is applied to the slider 4 while supporting its own weight. The vertical feeding mechanism 17.2 is connected to the vertical feeding mechanism 17.26.
6 is operated to set the amount of processing performed on the workpiece 10 by the workpiece processing section 8.
（作用）
従って、この発明のスライダ上下送り装置においては、
ワーク加工部８側及びその反対側の摺動面１９．２１に
それぞれ静圧力が作用するため、機枠１とスライダ４と
の間の摩擦抵抗が極めて小さくなって軽い力でスライダ
４の上下送りを行うことができるとともに、金属接触に
よるスティックスリップを確実に防止して高精度送りが
可能となる。また、ワーク加工部Ｂ側の第１のオイルポ
ケット２０の静圧力が反対側の第２のオイルポケット２
２の静圧力よりも小さく設定されているので、ワーク加
工部８の自重並びに切削又は研削抵抗にも係わらず、ワ
ーク加工部Ｂ側におけるスライダ４の摺動案内面が常し
ζ正確な位置に保持され、スライダ４の微細送りが可能
となってワーク１０の加工精度を飛躍的に向上させるこ
とができる。 −しかも、ワーク加工部Ｂ側の摺動面を
基準としてスライダ４が移動案内されるため、その基準
摺動面さえ高精度に仕とげ加工すれば、反対側Ｏ摺動面
については比較的低い精度の仕とげ加工でよく、全体と
して製作が簡略化されてコストを軽減することができる
。そのうえ、前記両静圧力の大きさの比率を適宜Ｖて変
更すれば、摺動抵抗を任意の値に調整することができ、
前記上下送り機構１７．２８等における設計上の自由度
が増大する。(Function) Therefore, in the slider vertical feeding device of the present invention,
Since static pressure acts on the sliding surfaces 19 and 21 on the workpiece processing section 8 side and on the opposite side, the frictional resistance between the machine frame 1 and the slider 4 becomes extremely small, and the slider 4 can be moved up and down with a light force. At the same time, stick-slip caused by metal contact is reliably prevented and highly accurate feeding is possible. In addition, the static pressure of the first oil pocket 20 on the side of the workpiece processing section B is lowered to the second oil pocket 2 on the opposite side.
Since the static pressure is set smaller than the static pressure of No. 2, the sliding guide surface of the slider 4 on the workpiece processing section B side is always at the correct position, regardless of the weight of the workpiece processing section 8 and the cutting or grinding resistance. This makes it possible to finely feed the slider 4, thereby dramatically improving the machining accuracy of the workpiece 10. -Moreover, since the slider 4 is guided in movement with reference to the sliding surface on the workpiece machining section B side, if even that reference sliding surface is finished with high precision, the sliding surface on the opposite side O is relatively low. Precision finishing is required, and overall manufacturing is simplified and costs can be reduced. Moreover, by appropriately changing the ratio of the magnitudes of both static pressures, the sliding resistance can be adjusted to an arbitrary value.
The degree of freedom in designing the vertical feed mechanism 17, 28, etc. is increased.
（実施例）
以下、この発明を研削盤に具体化した一実施例を第１〜
４図に基づいて説明する。(Example) Hereinafter, an example in which this invention is embodied in a grinding machine will be described.
This will be explained based on FIG.
第１，２図に示すように研削盤の機枠ＩＶｃは相対向し
て上下に延びる一対の支柱２が立設され、それらの対向
端面には一対のガイド突部３がそれぞれ形成されている
。両支柱２間にはスライダ４が昇降可能に支持され、各
支柱２と対向する面には凹部５がそれぞれ形成されてい
るとともに、その凹部５の両側には支柱２の両側面を挾
むように規制部６が突設されている。As shown in FIGS. 1 and 2, the machine frame IVc of the grinding machine has a pair of supporting columns 2 that face each other and extend up and down, and a pair of guide protrusions 3 are formed on their opposing end surfaces. . A slider 4 is supported between both columns 2 so as to be movable up and down, and a recess 5 is formed on the surface facing each column 2, and a slider 4 is provided on both sides of the recess 5 so as to sandwich both sides of the column 2. A portion 6 is provided in a protruding manner.
スライダ４は一側方に向かって延びる砥石ヘッドＴを一
体的に備え、その砥石ヘッド１の先端にはモータ１１Ｖ
ｃよって回転駆動されるワーク加工部としての砥石８が
テーブル９上のワーク１０に上方から対向するように取
着されている。また、スライダ４の下方には上下に延び
る送りねじ軸１３が配置され、その上端はスライダ４の
下面に当接されるとともに、下端部に螺合支持された従
動歯車１４は駆動歯車１５を介して操作ノ・／ドル１６
に作動連結されている。そして、前記送りねじ軸１３、
従動歯車１４、駆動歯車１５及び操作ノ１／ドル１Ｂに
エリこの実施例における上下送り機構１７が構成され、
スライダ４の自重が送りねじ軸１３に支持された状態で
、操作ハンドル１６の回転操作に伴いそのスライダ４が
支柱２に沿って昇降され、任意の上下位置において前記
砥石８によりワーク１０を研削できるようになっている
。The slider 4 is integrally equipped with a grindstone head T extending toward one side, and a motor 11V is mounted at the tip of the grindstone head 1.
A grindstone 8 serving as a workpiece machining unit that is rotationally driven by the grinding wheel 8 is mounted on a table 9 so as to face the workpiece 10 from above. Further, a feed screw shaft 13 is disposed below the slider 4 and extends vertically, the upper end of which is in contact with the lower surface of the slider 4, and a driven gear 14 screwed and supported by the lower end is connected to the drive gear 15 via a drive gear 15. Operation / $16
is operatively connected to. and the feed screw shaft 13,
The driven gear 14, the drive gear 15, and the operating gear 1/driver 1B constitute the vertical feed mechanism 17 in this embodiment.
With the weight of the slider 4 being supported by the feed screw shaft 13, the slider 4 is raised and lowered along the column 2 as the operating handle 16 is rotated, and the workpiece 10 can be ground by the grindstone 8 at any vertical position. It looks like this.
一方、第１．８．４図に示すように砥石８側におけるス
ライダ４の前部摺動面１９には前部オイルバンド３０が
上下方向に複数個突出形成され、各パッド３０にはそれ
ぞれ第１のナイルポケット２０が所定長さで上下に延び
るように凹設されている。また、これと同様に砥石８と
は反対側におけるスライダ４の後部摺動面２１には第２
のオイルポケット２２を備えた後部オイルパッド３１が
、さらに、支柱２の前記各ガイド突部３と対向するスラ
イダ４の側部摺動面２４には第３のオイルポケット２３
を備えた側部オイルバンド３２がそれぞれ形成されてい
る。そして、前記各オイルポケット２０、２２．２３に
は給油装置（図示しない）に接続された絞り孔３３が設
けられ、各絞り孔３３より注油されたそれぞれ同一圧力
の圧油が各オイルポケット２０，２２．２３内に供給さ
れ、この圧油の圧力によって各オイルパッド３Ｇ、３１
゜３２と支柱２の摺動面１９，２１．２４との間に静圧
力が作用するようになっている。On the other hand, as shown in FIG. 1.8.4, a plurality of front oil bands 30 are formed on the front sliding surface 19 of the slider 4 on the grinding wheel 8 side and protrude in the vertical direction, and each pad 30 has a plurality of front oil bands 30. One Nile pocket 20 is recessed so as to extend vertically by a predetermined length. Similarly, a second
Furthermore, a third oil pocket 23 is provided on the side sliding surface 24 of the slider 4 facing each of the guide protrusions 3 of the support column 2.
A side oil band 32 is formed, respectively. Each of the oil pockets 20, 22, 23 is provided with a throttle hole 33 connected to an oil supply device (not shown), and the pressure oil filled from each throttle hole 33 and having the same pressure is supplied to each oil pocket 20, 22, 23. 22 and 23, and the pressure of this pressure oil causes each oil pad 3G, 31
32 and the sliding surfaces 19, 21, 24 of the strut 2.
ところで、第３．４図を比較して明らかなように、前記
第１のオイルポケット２０の静圧力作用面積は第２のオ
イルポケット２２のそれよりも小さく設定されている。By the way, as is clear from a comparison of FIG. 3.4, the static pressure acting area of the first oil pocket 20 is set smaller than that of the second oil pocket 22.
従って、砥石Ｂ側においてスライダ４に作用する静圧力
よりも砥石８の反対側においてスライダ４に作用する静
圧力の方が大きく、スライダ４は常に砥石８側に押圧付
勢された状態で摺動案内されるようになっている。それ
ゆえ、砥石ヘッド１及び砥石８の自重に基づく回転モー
メント並びに砥石Ｂによるワーク１０の研削に伴って発
生するモーメントの変動に影響されることなく、機枠１
に対するスライダ４の摺動案内面が常に一定位置に保持
される。このため、前記上下送り機構１７の作動に確実
に応答してスライダ４を正確な送り量で上下に微細送り
することができる。Therefore, the static force acting on the slider 4 on the opposite side of the grindstone 8 is greater than the static force acting on the slider 4 on the grindstone B side, and the slider 4 always slides while being pressed against the grindstone 8 side. You will be guided. Therefore, the machine frame 1
The sliding guide surface of the slider 4 is always held at a constant position. Therefore, the slider 4 can be finely moved up and down with an accurate feed amount in response to the operation of the vertical feed mechanism 17.
しかも、前記したように支柱２とスライダ４との前部、
後部、側部の各摺動面１９，２１．２４の全体に静圧力
が作用しているため、従来の金属接触を介しての動圧摺
動案内の場合とは異なり、摩擦抵抗が大幅に減少され、
上下送り機構１Ｔにおける操作ハンドル１６の操作力が
軽、成されて、前記送りねじ軸１３にたわみが生じるお
それがなくなるとともに、スライダ４におけるスティッ
クスリップの発生が確実に防止され、これらによって砥
石８の高精度送りが可能となる。そのうえ、砥石８側の
摺動面１ｇを基準にしてスライダ４が昇降案内されるた
め、反対側の摺動面２１の仕上げ加工に高い精度が要求
されず、裏作が容易となる。Moreover, as mentioned above, the front part of the support 2 and the slider 4,
Since static pressure is applied to the entire rear and side sliding surfaces 19, 21.24, frictional resistance is significantly reduced, unlike in the case of conventional hydrodynamic sliding guides using metal contacts. reduced,
The operating force of the operating handle 16 in the vertical feed mechanism 1T is light, eliminating the risk of bending the feed screw shaft 13, and reliably preventing the occurrence of stick-slip on the slider 4. High precision feeding is possible. Furthermore, since the slider 4 is guided up and down with reference to the sliding surface 1g on the side of the grindstone 8, high precision is not required for the finishing of the sliding surface 21 on the opposite side, making back-up work easier.
（別の実施例）
（１）第５図はこの発明の別の実施例を示すものであり
、上下送り機構２６の構成が前記実施例とは相違してい
る。(Another Embodiment) (1) FIG. 5 shows another embodiment of the present invention, in which the structure of the vertical feed mechanism 26 is different from the previous embodiment.
すなわち、前記送りねじ軸１３は機枠ＩＫ回転可能に装
着されたポールナン）２７１Ｃ螺合され、そのポールナ
ンド２７ Ｋは駆動歯車１５に噛合する従動歯車１４が
固着されている。そして、前記操作ハンドル１６の回転
操作に伴いポールナンド２７がスライダ４の自重を支持
した状態で回転されることにより、送りねじ軸１３が昇
降されてスライダ４に上下送りが付与されるようになっ
ている。また、機枠１にはブレーキ部材２Ｂが設けられ
、このブレーキ部材２Ｂが圧縮ばね２９の作用により常
にポールナンド２７のと面に係合して、そのポールナン
ド２７の遊転が防止されるようになっているう従って、
この実施例の構成によれば、前記実施例の作用効果に加
えて上下送り機構２６におけるパンクランシが除去され
るとともに、操作ハンドル１６をより軽い力で操作する
ことができる。That is, the feed screw shaft 13 is screwed into a pole nut 271C rotatably mounted on the machine frame IK, and the driven gear 14 that meshes with the drive gear 15 is fixed to the pole nut 27K. When the operation handle 16 is rotated, the pole nand 27 is rotated while supporting the weight of the slider 4, so that the feed screw shaft 13 is raised and lowered and vertical feed is applied to the slider 4. There is. Further, the machine frame 1 is provided with a brake member 2B, and this brake member 2B is always engaged with the side surface of the pole nand 27 by the action of a compression spring 29, thereby preventing the pole nand 27 from idling. Therefore,
According to the configuration of this embodiment, in addition to the effects of the previous embodiment, puncture in the vertical feed mechanism 26 can be eliminated, and the operating handle 16 can be operated with a lighter force.
（２）前記実施例では第１及び第２のオイルボケッ）２
０．２２をスライダ４側に設けたが、これとは逆に各オ
イルポケッ）２０．２２を支柱２側に形成してもよい。(2) In the above embodiment, the first and second oil spots)2
0.22 is provided on the slider 4 side, but conversely, each oil pocket 20.22 may be formed on the column 2 side.
（３）前記実施例では砥石８側に作用する静圧力を反対
側の静圧力エリも小さくするために、各オイルポケット
２０．２２の静圧力作用面積の大きさをそれぞれ相違さ
せたが、これにかえて各オイルポケット２０．２２に供
給される圧油の圧力を砥石Ｂ側と反対側とでそれぞれ相
違させ、砥石Ｂ側により小さな静圧力が作用するように
構成しても前記実施例と同様な作用効果を得ることがで
きる。そのためには、前記第１のオイルポケット２０の
絞り孔３３の径を第２のオイルポケット２２の絞り孔３
３の径よりも所定の割合だけ小さく設定したり、あるい
は各オイルポケット２０．２２の絞り孔３３の径を同一
にしかついずれか一方の絞り孔３３に圧力調整用の絞り
弁を接続したりすればよい。特に後者の方式によれば砥
石８側と反対側との静圧カバランスを任意の比率に調整
設定できるので、上下送り装置全体における設計上の自
由度が増大する。(3) In the embodiment described above, in order to reduce the static pressure applied to the grinding wheel 8 side as well as the static pressure area on the opposite side, the sizes of the static pressure acting areas of the oil pockets 20 and 22 were made different. Alternatively, the pressure of the pressure oil supplied to each oil pocket 20, 22 may be made different between the grinding wheel B side and the opposite side, so that a smaller static pressure is applied to the grinding wheel B side. Similar effects can be obtained. To do this, the diameter of the throttle hole 33 of the first oil pocket 20 must be set to the diameter of the throttle hole 33 of the second oil pocket 22.
The diameter of the throttle hole 33 of each oil pocket 20.22 may be set to be smaller by a predetermined percentage than the diameter of 3, or the diameter of the throttle hole 33 of each oil pocket 20.22 may be made the same and a throttle valve for pressure adjustment may be connected to one of the throttle holes 33. Bye. In particular, according to the latter method, the static pressure balance between the grinding wheel 8 side and the opposite side can be adjusted to an arbitrary ratio, thereby increasing the degree of freedom in designing the entire vertical feed device.
（４）その他、この発明を平面研削盤以外のプレス機等
の昇降スライダを備えた各種の工作機械に応用したりす
るなど、この発明の趣旨を逸脱しない範囲で各部の形状
や構成を任意に変更して具体化することも可能である。(4) In addition, this invention may be applied to various machine tools equipped with elevating sliders such as press machines other than surface grinders, and the shapes and configurations of each part may be arbitrarily changed without departing from the spirit of this invention. It is also possible to modify and embody it.
発明の効果
以上詳述したように、この発明によればワーク加工部側
及びその反対側の摺動面にそれぞれ静圧力が作用するた
め、機枠とスライダとの間の摩擦抵抗が極めて小さくな
って軽いカでスライダの上下送りを行うことができると
ともに、金属接触によるステインクスリンプを確実に防
止して高精度送りが可能となる。また、ワーク加工部側
の第１のオイルポケットの静圧力が反対側の第２のオイ
ルポケットの静圧力よりも小さく設定されているので、
ワーク加工部の自重並びに切削又は研削抵抗にも係わら
ず、ワーク加工部側におけるスライダの摺動案内面が常
に正確な位置に保持され、スライダの微細送りが可能と
なってワークの加工精度を飛躍的に向上させることがで
きる。Effects of the Invention As detailed above, according to the present invention, static pressure is applied to the sliding surfaces on the workpiece processing side and on the opposite side, so the frictional resistance between the machine frame and the slider becomes extremely small. The slider can be moved up and down with a light force, and it also reliably prevents stain slimp due to metal contact, allowing for highly accurate feeding. In addition, since the static pressure of the first oil pocket on the workpiece processing section side is set smaller than the static pressure of the second oil pocket on the opposite side,
Despite the workpiece processing section's own weight and cutting or grinding resistance, the sliding guide surface of the slider on the workpiece processing section side is always held in an accurate position, enabling fine feeding of the slider, which dramatically improves the processing accuracy of the workpiece. can be improved.
しかも、ワーク加工部側の摺動面を基準としてスライダ
が移動案内されるため、その基準摺動面さえ高精度に仕
上げ加工すれば、反対側の摺動面については比較的低い
精度の仕上げ加工でよく、全体として製作が簡略化され
てコストを軽減することができる。そのうえ、前記両静
圧力の大きさの比率を適宜に変更すれば、摺動抵抗を任
意の値に調整することができ、前記上下送り機構等にお
ける設計上の自由度が増大する。Moreover, since the slider is guided in movement based on the sliding surface on the workpiece processing side, if the standard sliding surface is finished with high precision, the sliding surface on the opposite side can be finished with relatively low precision. This simplifies the overall manufacturing process and reduces costs. Furthermore, by appropriately changing the ratio of the magnitudes of both static pressures, the sliding resistance can be adjusted to any value, increasing the degree of freedom in designing the vertical feed mechanism and the like.
第１図はこの発明を具体化した一実施例を示す研削盤の
要部断面図（第２図のＸ−Ｘ線拡大断面図）、第２図は
研削盤の側面図、第３図は第１図のＹ−Ｙ線断面図、第
４図は第１図のＺ−Ｚ線断面図、第５図は上下送り機構
の側倒を示す断面図である。
機枠１、支柱２、スライダ４、ワーク加工部としての砥
石８、ワーク１０．上下送り機枠１７゜２６、前部摺動
面１９、第１のオイルポケット２０、後部摺動面２１、
第２のオイルポケット２２゜特許出願人 株式
会社 長瀬鉄工所代 理 人 弁理士恩田博宣
図面その重
μ、 ２−Fig. 1 is a cross-sectional view of the main parts of a grinding machine showing an embodiment of the present invention (an enlarged cross-sectional view taken along the line X-X in Fig. 2), Fig. 2 is a side view of the grinding machine, and Fig. 3 is 1, FIG. 4 is a sectional view taken along Z-Z line in FIG. 1, and FIG. 5 is a sectional view showing the vertical feeding mechanism tilted sideways. A machine frame 1, a support 2, a slider 4, a grindstone 8 as a workpiece processing section, a workpiece 10. Vertical feeder frame 17°26, front sliding surface 19, first oil pocket 20, rear sliding surface 21,
Second oil pocket 22゜ Patent applicant: Nagase Iron Works Co., Ltd. Attorney: Hironobu Onda, patent attorney, Drawing weight μ, 2-
Claims (1)
面（１９、２１）を介して機枠（１）に対し昇降可能に
支持し、ワーク加工部（８）側の前記摺動面（１９）に
静圧力を作用させる第１のオイルポケット（２０）を設
けるとともに、ワーク加工部（８）とは反対側の前記摺
動面（２１）にワーク加工部（８）側の静圧力よりも大
きな静圧力を作用させる第２のオイルポケット（２２）
を配設し、前記スライダ（４）にその自重を支持する状
態でそれに上下方向の送り力を付与する上下送り機構（
１７）、（２６）を連結し、その上下送り機構（１７）
、（２６）を作動させてワーク加工部（８）によるワー
ク（１０）に対する加工量を設定するようにしたことを
特徴とする工作機械におけるスライダ上下送り装置。 ２ 前記第１のオイルポケット（２０）の静圧力作用面
積を第２のオイルポケット（２２）の静圧力作用面積よ
りも小さく設定したことを特徴とする特許請求の範囲第
１項記載の工作機械におけるスライダ上下送り装置。 ３ 前記第１のオイルポケット（２０）に供給される圧
油の圧力を第２のオイルポケット（２２）に供給される
圧油の圧力よりも小さく設定したことを特徴とする特許
請求の範囲第１項記載の工作機械におけるスライダ上下
送り装置。 ４ 前記第１及び第２のオイルポケット（２０）、（２
２）に供給される圧油の圧力のうち少なくともいずれか
一方を調整設定可能にしたことを特徴とする特許請求の
範囲第３項記載の工作機械におけるスライダ上下送り装
置。 ５ 前記上下送り機構（１７）は、スライダ（４）を支
持する上下に延びる送りねじ軸（１３）と、その送りね
じ軸（１３）に螺合する従動歯車（１４）と、その従動
歯車（１４）を駆動歯車（１５）を介して回転駆動する
操作部材（１６）とから構成されていることを特徴とす
る特許請求の範囲第１〜４項のいずれか一項記載の工作
機械におけるスライダ上下送り装置。 ６ 前記上下送り機構（２６）は、スライダ（４）を支
持する上下に延びる送りねじ軸（１３）と、その送りね
じ軸（１３）に螺合するボールナット（２７）と、その
ボールナット（２７）の遊転を防止するブレーキ部材（
２８）と、前記ボールナット（２７）に設けられた従動
歯車（１４）を駆動歯車（１５）を介して回転駆動する
操作部材（１６）とから構成されていることを特徴とす
る特許請求の範囲第１〜４項のいずれか一項記載の工作
機械におけるスライダ上下送り装置。[Claims] 1. A slider (4) equipped with a workpiece processing section (8) is supported so as to be movable up and down relative to the machine frame (1) via sliding surfaces (19, 21), and the workpiece processing section (8) ) is provided with a first oil pocket (20) that applies static pressure to the sliding surface (19), and a workpiece processing section is provided on the sliding surface (21) on the opposite side to the workpiece processing section (8). A second oil pocket (22) that applies a static pressure greater than the static pressure on the (8) side.
and a vertical feeding mechanism (4) that applies vertical feeding force to the slider (4) while supporting its own weight.
17) and (26) are connected, and its vertical feeding mechanism (17)
, (26) to set the amount of machining of a workpiece (10) by a workpiece machining section (8). 2. The machine tool according to claim 1, wherein the static pressure acting area of the first oil pocket (20) is set smaller than the static pressure acting area of the second oil pocket (22). Slider vertical feed device. 3. The pressure of the pressure oil supplied to the first oil pocket (20) is set lower than the pressure of the pressure oil supplied to the second oil pocket (22). A slider vertical feed device in a machine tool according to item 1. 4 The first and second oil pockets (20), (2
3. The slider vertical feeding device for a machine tool according to claim 3, wherein at least one of the pressures of the pressure oil supplied to the step 2) can be adjusted and set. 5 The vertical feed mechanism (17) includes a feed screw shaft (13) that supports the slider (4) and extends vertically, a driven gear (14) that is screwed onto the feed screw shaft (13), and a driven gear ( 14) in a machine tool according to any one of claims 1 to 4, characterized in that the slider comprises an operating member (16) that rotationally drives the slider (14) via a drive gear (15). Vertical feed device. 6. The vertical feed mechanism (26) includes a feed screw shaft (13) that supports the slider (4) and extends vertically, a ball nut (27) that is screwed onto the feed screw shaft (13), and a ball nut (27) that is screwed onto the feed screw shaft (13). 27) Brake member (
28) and an operating member (16) that rotationally drives a driven gear (14) provided on the ball nut (27) via a drive gear (15). A slider vertical feed device in a machine tool according to any one of the first to fourth items.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7596985A JPS61236444A (en) | 1985-04-10 | 1985-04-10 | Device for vertically feeding slider in machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7596985A JPS61236444A (en) | 1985-04-10 | 1985-04-10 | Device for vertically feeding slider in machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61236444A true JPS61236444A (en) | 1986-10-21 |
Family
ID=13591564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7596985A Pending JPS61236444A (en) | 1985-04-10 | 1985-04-10 | Device for vertically feeding slider in machine tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61236444A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014108503A (en) * | 2012-12-04 | 2014-06-12 | Jtekt Corp | Static pressure fluid guiding device and machine tool using static pressure fluid guiding device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5741143A (en) * | 1980-08-18 | 1982-03-08 | Junichi Yoshioka | Compound guide system of machine tool |
-
1985
- 1985-04-10 JP JP7596985A patent/JPS61236444A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5741143A (en) * | 1980-08-18 | 1982-03-08 | Junichi Yoshioka | Compound guide system of machine tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014108503A (en) * | 2012-12-04 | 2014-06-12 | Jtekt Corp | Static pressure fluid guiding device and machine tool using static pressure fluid guiding device |
| EP2740952A3 (en) * | 2012-12-04 | 2018-01-31 | Jtekt Corporation | Hydrostatic guide device and machine tool using the hydrostatic guide device |
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