JPH03256644A - Circulation method for lubrication oil of turret type machine tool - Google Patents
Circulation method for lubrication oil of turret type machine toolInfo
- Publication number
- JPH03256644A JPH03256644A JP5502690A JP5502690A JPH03256644A JP H03256644 A JPH03256644 A JP H03256644A JP 5502690 A JP5502690 A JP 5502690A JP 5502690 A JP5502690 A JP 5502690A JP H03256644 A JPH03256644 A JP H03256644A
- Authority
- JP
- Japan
- Prior art keywords
- turret
- lubricating oil
- oil
- lubrication oil
- piping
- 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
Links
- 238000000034 method Methods 0.000 title claims description 21
- 238000005461 lubrication Methods 0.000 title abstract description 19
- 239000010687 lubricating oil Substances 0.000 claims description 79
- 239000003921 oil Substances 0.000 abstract description 53
- 230000007246 mechanism Effects 0.000 abstract description 17
- 239000010730 cutting oil Substances 0.000 abstract description 12
- 238000005086 pumping Methods 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000003566 sealing material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、タレット式工作機械のタレットの内部とタ
レットの外部の潤滑油タンクとの間で潤滑油を循環させ
る際に用いて好適な方法に関するものである。Detailed Description of the Invention (Field of Industrial Application) The present invention is a method suitable for circulating lubricating oil between the inside of a turret of a turret-type machine tool and the lubricating oil tank outside the turret. It is related to.
（従来の技術）
タレット式工作機械のタレットの内部には、そのタレッ
トの周囲に取り付けられたタレットヘッドが保持する工
具を回転駆動するための駆動機構が設けられており、し
かもその駆動機構は通常、タレットを支持するベツドや
コラム内の機構とは独立して潤滑され、かかる駆動機構
と潤滑油貯留部との間で潤滑油を循環させる場合には従
来、例えば、第２図に示す如き潤滑系による方法が用い
られている。(Prior Art) A drive mechanism is provided inside the turret of a turret-type machine tool to rotate a tool held by a turret head attached to the turret. The turret is lubricated independently of the mechanisms in the bed and column, and when lubricating oil is circulated between the drive mechanism and the lubricating oil reservoir, conventionally, for example, a lubrication method as shown in FIG. 2 has been used. A systematic method is used.
図中１は所定の軸線周りに割り出し回動されるタレット
、２は油温管理装置、３は給油配管、４は汲み出し配管
をそれぞれ示し、タレット１は、図示しない工具を保持
するタレットヘッド５を周囲に複数取り付けられて割り
出し回動されるケーシング上部１ａの内部にそれらの工
具を回転駆動するための図示しない駆動機構を有すると
ともに、そのケーシング上部１ａを回動可能に枢支する
ケーシング下部１ｂの内部に潤滑油貯留部としての油溜
り部１ｃを有しており、それらケーシング上部１ａとケ
ーシング下部１ｂとの間は、外部に対しては液密にシー
ルされているかケーシング内では貫通孔を介して連通さ
れている。In the figure, 1 is a turret that is indexed and rotated around a predetermined axis, 2 is an oil temperature control device, 3 is an oil supply pipe, and 4 is a pumping pipe.The turret 1 has a turret head 5 that holds a tool (not shown). A plurality of casing upper parts 1a that are attached around the periphery and indexed and rotated have a drive mechanism (not shown) for rotationally driving those tools, and a casing lower part 1b that rotatably supports the casing upper parts 1a. It has an oil reservoir part 1c as a lubricating oil storage part inside, and the casing upper part 1a and casing lower part 1b are either sealed fluid-tightly from the outside or are connected through a through hole in the casing. are communicated with each other.
また油温管理装置２は、吸入口２ａと吐出口２ｂとの間
の油路に直列に挿入されたポンプ２Ｃと冷却装置２ｄと
を具えている。The oil temperature control device 2 also includes a pump 2C and a cooling device 2d that are inserted in series in an oil path between the suction port 2a and the discharge port 2b.
そして、油温管理装置２の吐出口２ｂに一端部を接続さ
れた給油配管３の他端部はタレットｌのケーシング上部
ｌａ内にて開口しており、油温管理装置２の吸入口２ａ
に一端部を接続された汲み出し配管４の他端部はタレッ
ト１のケーシング下部ｌｂ内の油溜り部ＩＣに配置され
たサクションフィルタ６に接続されている。The other end of the oil supply pipe 3, one end of which is connected to the discharge port 2b of the oil temperature control device 2, opens in the casing upper part la of the turret l, and the inlet 2a of the oil temperature control device 2.
The other end of the pumping pipe 4 is connected to a suction filter 6 disposed in an oil reservoir IC in the lower casing lb of the turret 1.
かかる潤滑系にあっては、ケーシング下部ｌｂ内の油溜
り部１ｃに貯留しである潤滑油７を、サクションフィル
タ６および汲み出し配管４を介し油温管理装置２のポン
プ２Ｃで汲み出して冷却装置２ｄで適宜冷却した後、給
油配管３を介しタレット１のケーシング上部ｌａ内に吐
出させて、そのケーシング上部１ａ内の上記駆動機構を
潤滑および冷却し、潤滑後の潤滑油７はスラッジ８とと
もにケーシング下部ｌｂ内の油溜り部ＩＣに落下してそ
こに貯留される。In such a lubrication system, the lubricating oil 7 stored in the oil reservoir 1c in the lower part lb of the casing is pumped out by the pump 2C of the oil temperature control device 2 via the suction filter 6 and the pumping piping 4, and then pumped out by the pump 2C of the oil temperature control device 2. After being appropriately cooled, the lubricating oil 7 is discharged into the upper part la of the casing of the turret 1 through the oil supply pipe 3 to lubricate and cool the drive mechanism in the upper part la of the casing. The oil falls into the oil reservoir IC in the lb and is stored there.
しかしながらこの潤滑油循環方法では、タレット１のケ
ーシング下部ｌｂ内の油溜り部ＩＣに潤滑油を貯留して
いるため、ケーシング上部１ａやケーシング下部ｌｂ内
に侵入して来てその油溜り部ＩＣに一緒に貯留された切
削油が、それから分離して蒸発した水分により上記駆動
機構に錆を発生させる等の悪影響を及ぼすという問題が
あった。However, in this lubricating oil circulation method, since the lubricating oil is stored in the oil sump IC in the casing lower part lb of the turret 1, it may enter the casing upper part 1a or the casing lower part lb and enter the oil sump IC. There is a problem in that the cutting oil stored together with the cutting oil separates from it and evaporates, causing an adverse effect such as rusting on the drive mechanism.
これがため従来、上記問題を解決すべく第３図に示す他
の潤滑油循環方法も用いられ、ここでは潤滑油貯留部と
してタレット１の外部に別途潤滑油タンク９が設けられ
るとともに、戻し配管１０が設けられており、油温管理
装置２の吸入口２ａに一端部を接続された汲み出し配管
４の他端部は、潤滑油タンク９内の下部に配置されたサ
クションフィルタ６に接続され、タレット１のケーシン
グ下部ｌｂ内の油溜り部１ｃにて一端部が開口する戻し
配管ＩＯの他端部は、潤滑油タンク９内の上部にて開口
しており、戻し配管１０は図示の如くポンプ１１が設け
られているものと、高低差による自由落下を利用するも
のとがある。Therefore, in order to solve the above problem, another lubricating oil circulation method shown in FIG. One end of the pumping pipe 4 is connected to the suction port 2a of the oil temperature control device 2, and the other end of the pumping pipe 4 is connected to a suction filter 6 disposed at the lower part of the lubricating oil tank 9. One end of the return pipe IO opens at the oil reservoir 1c in the lower lb of the casing 1, and the other end opens at the upper part of the lubricating oil tank 9, and the return pipe 10 connects to the pump 11 as shown in the figure. There are some that are equipped with a height difference, and others that utilize free fall due to the difference in height.
かかる潤滑系にあっては、潤滑油タンク９内に貯留しで
ある潤滑油７を、サクションフィルタ６および汲み出し
配管４を介し油温管理装置２のポンプ２ｃで汲み出して
冷却装置２ｄで適宜冷却した後、給油配管３を介しタレ
ット１のケーシング上部ｌａ内に吐出させて、そのケー
シング上部ｌａ内の上記駆動機構を潤滑および冷却し、
その潤滑後にスラッジ８とともにケーシング下部ｌｂ内
の油溜り部１ｃに落ちてきた潤滑油７を、戻し配管１ｏ
を介し、ポンプ１１で汲み出して、あるいは自由落下に
よって、潤滑油タンク９内に戻す。In such a lubrication system, the lubricating oil 7 stored in the lubricating oil tank 9 is pumped out by the pump 2c of the oil temperature control device 2 via the suction filter 6 and the pumping pipe 4, and cooled appropriately by the cooling device 2d. After that, the oil is discharged into the upper part la of the casing of the turret 1 through the oil supply pipe 3 to lubricate and cool the drive mechanism in the upper part la of the casing,
After the lubrication, the lubricating oil 7 that has fallen into the oil reservoir 1c in the lower casing lb along with the sludge 8 is returned to the pipe 1o.
The oil is pumped out via the pump 11 or returned to the lubricating oil tank 9 by free fall.
従ってこの方法によれば、タレット１のケーシング上部
１ａやケーシング下部ｌｂ内に侵入して来た、水と混合
された切削油を、タレット１外に排出して、駆動機構へ
の切削油の悪影響を防止することができる。Therefore, according to this method, the cutting oil mixed with water that has entered the casing upper part 1a and casing lower part 1b of the turret 1 is discharged outside the turret 1, and the cutting oil has an adverse effect on the drive mechanism. can be prevented.
（発明が解決しようとする課題）
しかしながら上記後者の従来方法にあっては、油溜り部
ｌｂ内から潤滑油タンク９内へ潤滑油７を戻す戻し配管
１０を、設置スペース上からそれほど太くし得す、また
切削等の際にワークに対してタレット１を進退移動させ
る工作機械ではその移動に支障がないようその戻し配管
１０の中間に比較的細い図示しない可撓性配管も介在す
ることから、戻し配管１０を通る潤滑油７の通流抵抗が
比較的大きなものとなり、しかも、油溜り部ｉｂと潤滑
油タンク９との高低差も機械構造上それほど大きくっけ
得ないので、ポンプ１１がない場合には十分な流量で潤
滑油７を潤滑油タンク９内へ戻すことができず、それゆ
え供給する潤滑油７の不足を生ずるおそれがあるという
問題があり、この一方ポンプ１１がある場合にも、設置
スペース上からそのポンプ１１をタレット１に近接させ
て設けるのは困難なため、戻し配管ＩＯを通る潤滑油７
の通流抵抗の大きさに起因してポンプ１１に吸入側流量
不足によるサージング現象が生じ易く、これによりポン
プ１１に故障が生ずるおそれがあるという問題があった
。(Problem to be Solved by the Invention) However, in the latter conventional method, the return pipe 10 that returns the lubricating oil 7 from the oil reservoir lb to the lubricating oil tank 9 cannot be made so thick due to the installation space. In addition, in machine tools that move the turret 1 forward and backward relative to the workpiece during cutting, etc., a relatively thin flexible pipe (not shown) is also interposed in the middle of the return pipe 10 so that the movement is not hindered. The flow resistance of the lubricating oil 7 through the return pipe 10 is relatively large, and the height difference between the oil reservoir part ib and the lubricating oil tank 9 cannot be so large due to the mechanical structure, so there is no pump 11. In some cases, the lubricating oil 7 cannot be returned to the lubricating oil tank 9 at a sufficient flow rate, which may lead to a shortage of the lubricating oil 7 to be supplied. However, since it is difficult to install the pump 11 close to the turret 1 due to the installation space, the lubricating oil 7 passing through the return pipe IO
Due to the large flow resistance of the pump 11, a surging phenomenon is likely to occur in the pump 11 due to insufficient flow on the suction side, which may cause the pump 11 to malfunction.
この発明は、かかる課題を有利に解決した潤滑油循環方
法を提供するものである。The present invention provides a lubricating oil circulation method that advantageously solves this problem.
（発明が解決しようとする課題）
この発明のタレット式工作機械の潤滑油循環方法は、タ
レット式工作機械のタレットの内部と、タレットの外部
の潤滑油タンクとの間で潤滑油を循環させるに際し、前
記タレットの内部に、圧縮空気を供給することを特徴と
するものである。(Problems to be Solved by the Invention) The lubricating oil circulation method for a turret type machine tool of the present invention is a method for circulating lubricating oil between the inside of the turret of the turret type machine tool and the lubricating oil tank outside the turret. , characterized in that compressed air is supplied to the inside of the turret.
そしてこの発明においては、より好ましくは前記圧縮空
気の圧力を、０．２〜０．４ｋｇ／Ｃｒｌとする。In this invention, the pressure of the compressed air is more preferably 0.2 to 0.4 kg/Crl.
（作用）
かかる方法によれば、タレットの内部に供給された圧縮
空気が、タレットの内部の潤滑油をタレットの外部の潤
滑油タンクへ向けて強制的に圧送するので、タレットの
内部と潤滑油タンクとの間の戻し配管の太さが設置スペ
ース上から十分とれないためにその配管を通る潤滑油の
通流抵抗が大きくても、ポンプを利用することなしに潤
滑油タンクへの潤滑油の十分な戻り流量が確保でき、従
って、タレット内に侵入して来た切削油をタレ、。(Function) According to this method, the compressed air supplied to the inside of the turret forcibly sends the lubricating oil inside the turret toward the lubricating oil tank outside the turret, so that the lubricating oil is separated from the inside of the turret. Even if the return piping between the tank and the tank is not thick enough to accommodate the installation space, and the flow resistance of the lubricating oil through that piping is large, it is possible to supply the lubricating oil to the lubricating oil tank without using a pump. Sufficient return flow rate is ensured, and therefore, the cutting oil that has entered the turret drips out.
ト外に排出して駆動機構への切削油の悪影響を防止する
ことがでるのはもちろん、駆動機構へ供給する潤滑油の
流量を十分に確保でき、しかも、タレットの内部から潤
滑油タンクへ向かう戻し配管にポンプを使用しないので
潤滑系の保全性を向上させることができる。Not only can this prevent the harmful effects of cutting oil on the drive mechanism by discharging it outside the turret, but it can also ensure a sufficient flow rate of lubricant supplied to the drive mechanism, and it also directs the lubricant from inside the turret to the lubricant tank. Since no pump is used in the return piping, the maintainability of the lubrication system can be improved.
そして、タレットにその内部と外部との間の液密性の維
持のために用いられているシール材の耐圧力は通常０．
５ｋｇ／ｃｍ２程度であるため、上記圧縮空気の圧力を
０．２〜０゜４ｋｇ／ｃｎｆとすれば、戻し配管の太さ
を十分太くできなくても上記潤滑油圧送作用を確保でき
るとともに、上記シール材の寿命の低下とタレット外へ
の潤滑油の漏れの発生とを有効に防止することができる
。The sealing material used in the turret to maintain liquid tightness between the inside and outside of the turret usually has a pressure resistance of 0.
5 kg/cm2, so if the pressure of the compressed air is set to 0.2 to 0.4 kg/cnf, the lubricating oil pressure sending effect can be ensured even if the thickness of the return piping cannot be made sufficiently thick, and the above-mentioned It is possible to effectively prevent a reduction in the life of the sealing material and leakage of lubricating oil to the outside of the turret.
尚、この方法によれば、タレットの内部に圧縮空気を供
給するので、タレット内の空気を清浄化するとともにタ
レット内への切削油の侵入自体を阻止して錆の発生を防
止する効果ももたらすことができる。According to this method, compressed air is supplied to the inside of the turret, which not only purifies the air inside the turret, but also prevents cutting oil from entering the turret, thereby preventing the occurrence of rust. be able to.
（実施例）
以下に、この発明の実施例を図面に基づき詳細に説明す
る。(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.
第１図は、この発明のタレット式工作機械の潤滑油循環
方法の一実施例を適用した潤滑系を示す構成図であり、
同図中第３図に示すと同様の部分はそれと同一の符号に
て示す。FIG. 1 is a configuration diagram showing a lubrication system to which an embodiment of the lubricating oil circulation method for a turret type machine tool of the present invention is applied.
In the figure, similar parts to those shown in FIG. 3 are designated by the same reference numerals.
すなわち、ここにおけるタレット１も、図示しない工具
を保持するタレットヘッド５を周囲に複数取り付けられ
て割り出し回動されるケーシング上部１ａの内部にそれ
らの工具を回転駆動するための図示しない駆動機構を有
するとともに、そのケーシング上部１ａを回動可能に枢
支するケーシング下部１ｂの内部に潤滑油貯留部として
の、容量５１の油溜り部１ｃを有しており、それらケー
シング上部１ａとケーシング下部１ｂとの間は、内部と
外部との間では液密にシールされているがケーシング内
部では貫通孔を介して連通されている。That is, the turret 1 here also has a drive mechanism (not shown) for rotationally driving the tools inside the casing upper part 1a which is indexed and rotated around which a plurality of turret heads 5 holding tools (not shown) are attached. In addition, the casing lower part 1b, which rotatably supports the casing upper part 1a, has an oil reservoir part 1c with a capacity of 51 as a lubricating oil storage part, and the casing upper part 1a and the casing lower part 1b are connected to each other. The inside and outside of the casing are sealed liquid-tightly, but are communicated with each other through a through hole inside the casing.
またここにおける油温管理装置２も、吸入口２ａと吐出
口２ｂとの間の油路に直列に挿入されたポンプ２ｃと冷
却装置２ｄとを具えており、それら吸入口２ａと吐出口
２ｂとの間には、給油配管３への潤滑油供給量を調整す
るために流量調整弁Ｉ２が設けられている。The oil temperature control device 2 here also includes a pump 2c and a cooling device 2d inserted in series in the oil path between the suction port 2a and the discharge port 2b. A flow rate adjustment valve I2 is provided between the two to adjust the amount of lubricant supplied to the oil supply pipe 3.
そしてここでは、潤滑油貯留部としてタレット１の外部
に別途容量８１の潤滑油タンク９が設けられるとともに
、戻し配管１０が設けられ、油温管理装置２の吐出口２
ｂに一端部を接続された給油配管３の他端部は、タレッ
ト１のケーシング上部Ｉａ内にて開口し、油温管理装置
２の吸入口２ａに一端部を接続された汲み出し配管４の
他端部は、潤滑油タンク９内の下部に配置されたサクシ
ョンフィルタ６に接続され、タレット１のケーシング下
部ｌｂ内の油溜り部１ｃにて一端部が開口する戻し配管
ｌＯの他端部は、潤滑油タンク９内の上部にて開口して
おり、戻し配管ｌＯはポンプを利用しないものとされて
いる。Here, a lubricating oil tank 9 with a capacity of 81 is separately provided outside the turret 1 as a lubricating oil storage part, a return pipe 10 is provided, and a discharge port 2 of the oil temperature control device 2 is provided.
The other end of the oil supply pipe 3, which has one end connected to b, opens in the upper part Ia of the casing of the turret 1, and the other end of the oil supply pipe 4, which has one end connected to the suction port 2a of the oil temperature control device 2. The other end of the return pipe IO is connected to the suction filter 6 disposed at the lower part of the lubricating oil tank 9, and has one end open at the oil reservoir 1c in the lower part lb of the casing of the turret 1. It opens at the upper part of the lubricating oil tank 9, and the return pipe IO does not use a pump.
加えて、この実施例では、例えば空気コンプレッサや工
場内の圧縮空気供給ライン等の図示しない圧縮空気源に
一端部を接続された給気配管１３が設けられ、その給気
配管１３の他端部もタレ・ストｌのケーシング上部ｌａ
内にて開口しており、その給気配管１３には、減圧弁１
４が挿入されるとともに圧力計１５が接続されている。In addition, in this embodiment, an air supply pipe 13 is provided, one end of which is connected to a compressed air source (not shown) such as an air compressor or a compressed air supply line in a factory, and the other end of the air supply pipe 13 is Upper part of the casing la of Motare Sto l
The air supply pipe 13 has a pressure reducing valve 1.
4 is inserted, and a pressure gauge 15 is connected.
かかる循環系にあっては、潤滑油タンク９内に貯留しで
ある潤滑油７を、サクションフィルタ６および汲み出し
配管４を介し油温管理装置２のポンプ２ｃで汲み出して
冷却装置２ｄで適宜冷却した後、流量調整弁１２で供給
量を調整しつつ、給油配管３を介しタレット１のケーシ
ング上部ｌａ内に吐出させて、そのケーシング上部ｌａ
内の上記駆動機構を潤滑および冷却し、その潤滑後にス
ラッジ８とともにケーシング下部ｌｂ内の油溜り部ＩＣ
に落ちてきた潤滑油７を、圧力を圧力計１５でのチエ・
ツクに基づき減圧弁１４で所定圧力に調整されて給気配
管１３によりケーシング上部ｌａ内に供給された圧縮空
気が、戻し配管１０を介しタレット１の外部の潤滑油タ
ンク９へ向けて強制的に圧送する。In such a circulation system, the lubricating oil 7 stored in the lubricating oil tank 9 is pumped out by the pump 2c of the oil temperature control device 2 via the suction filter 6 and the pumping pipe 4, and cooled appropriately by the cooling device 2d. After that, while adjusting the supply amount with the flow rate adjustment valve 12, the oil is discharged into the casing upper la of the turret 1 through the oil supply pipe 3, and the casing upper la
lubricates and cools the drive mechanism in the casing lower part lb together with the sludge 8 after the lubrication.
Check the pressure of the lubricating oil 7 that has fallen on the pressure gauge 15.
The compressed air adjusted to a predetermined pressure by the pressure reducing valve 14 based on the pressure and supplied into the upper part la of the casing by the air supply pipe 13 is forcibly directed to the lubricating oil tank 9 outside the turret 1 via the return pipe 10. to pump.
次頁に示す表は、上記潤滑系において条件を種々変えて
試験を実施した結果を示すものであり、ここで、Ｐは給
気配管１３からの給気圧、Ｌは戻し配管ＩＯの長さ、ｄ
はその戻し配管ＩＯの内径を示す。The table shown on the next page shows the results of tests conducted on the above lubrication system under various conditions, where P is the supply pressure from the air supply pipe 13, L is the length of the return pipe IO, d
indicates the inner diameter of the return pipe IO.
（表）
この試験は、上記給気圧Ｐと、配管長さしと、配管内径
ｄとの組み合わせを種々変更して、戻し配管ＩＯを通っ
て潤滑油タンク９へ戻る潤滑油の流量を測定したもので
あり、ここで、試験条件は、給油配管３および汲み出し
配管４の長さをそれぞれ２０００ｍｍとするとともに、
給油配管３を通る潤滑油の供給流量を８１／分として、
配管１０の長さしくａｍ）を２００．２０００．６００
０の三種類とし、内径ｄ（ｍｍ ）を５．５．６．５．
８．０．１Ｏ１０，１２，０の三種類とし、給気圧Ｐ
（ｋｇ／ｃｄ）をＯ（大気圧）、０．０５．０．１．０
．２．０．３．０．４の四種類としてあり、試験結果は
、戻し配管ＩＯを通る潤滑油の戻り流量が８ＩｌＺ分の
場合には○で、また８Ａ／分未満の場合には×で、それ
ぞれ記しである。(Table) In this test, the flow rate of lubricating oil returning to lubricating oil tank 9 through return piping IO was measured by changing various combinations of the above-mentioned supply pressure P, piping length, and piping inner diameter d. Here, the test conditions are that the length of the oil supply pipe 3 and the pumping pipe 4 are each 2000 mm, and
Assuming that the lubricating oil supply flow rate passing through the oil supply pipe 3 is 81/min,
The length of pipe 10 (am) is 200.2000.600
0, and the inner diameter d (mm) is 5.5.6.5.
8. Three types of 0.1O10, 12, 0, supply pressure P
(kg/cd) to O (atmospheric pressure), 0.05.0.1.0
．． There are four types: 2.0.3.0.4, and the test results are ○ if the return flow rate of lubricating oil passing through the return pipe IO is 8IlZ, and × if it is less than 8A/min. , respectively.
上記表から明らかなように、ケーシング上部ｌａ内に供
給する圧縮空気の圧力を０．２ｋｇ／ｃｎｆ以上とすれ
ば、戻し配管ｌＯをその長さしに応じて、最大でも、配
管スペースをそれほど取らない内径１２ｍｍのものとす
ることにて、油溜り部ＩＣから、給油配管３を通す供給
流量に概ね等しい戻り流量の潤滑油７を、戻し配管１０
を通して潤滑油タンク９へ確実に戻すことができる。As is clear from the above table, if the pressure of the compressed air supplied into the upper part la of the casing is 0.2 kg/cnf or more, the return piping lO will take up a large amount of piping space depending on its length. By using a lubricating oil 7 with an inner diameter of 12 mm, the return flow rate of the lubricating oil 7 is approximately equal to the supply flow rate through the oil supply pipe 3 from the oil reservoir IC to the return pipe 10.
The lubricating oil can be reliably returned to the lubricating oil tank 9 through the lubricating oil tank 9.
さらにこの実施例では、上記圧縮空気の圧力の上限を０
．４ｋｇ／ｃｍ２とする。これは、タレットｌの内部と
外部との間の液密性の維持のために用いられているシー
ル材の耐圧力が通常０．５ｋｇ／ｃｒｊ程度であるので
安全をみて低めに定めたものであり、これによって、上
記シール材の寿命の低下とタレットｌ外への潤滑油７の
漏れの発生とを有効に防止することができる。Furthermore, in this embodiment, the upper limit of the pressure of the compressed air is set to 0.
．． It is set to 4 kg/cm2. This is set low for safety reasons, as the pressure resistance of the sealing material used to maintain liquid tightness between the inside and outside of the turret is usually around 0.5 kg/crj. This makes it possible to effectively prevent a reduction in the life of the sealing material and the leakage of the lubricating oil 7 to the outside of the turret l.
従ってこの方法によれば、戻し配管ＩＯの太さか設置ス
ペース上から十分とれないために、あるいはそれに加え
て比較的細い図示しない可撓性配管が介在するために、
その戻し配管１０を通る潤滑油７の通流抵抗が大きい場
合で、かつ、油溜り部１ｂと潤滑油タンク９との高低差
も機械構造上それほど大きくつけ得ない場合でも、ポン
プを利用することなしに潤滑油タンク９への潤滑油７の
十分な戻り流量が確保でき、このことにて、タレット１
のケーシング上部１ａやケーシング下部ｌｂ内に侵入し
て来た、水と混合された切削油を、タレットｌ外へ排出
して、駆動機構への切削油の悪影響を防止することがで
きるのはもちろん、上記駆動機構へ供給する潤滑油７の
流量を十分に確保でき、しかも、戻し配管ｌＯにポンプ
を使用しないので、ポンプ故障のおそれを減少させて潤
滑系の保全性を向上させることができる。Therefore, according to this method, because the thickness of the return piping IO is insufficient for the installation space, or because a relatively thin flexible piping (not shown) is interposed in addition,
To use a pump even when the flow resistance of the lubricating oil 7 through the return pipe 10 is large and the height difference between the oil reservoir 1b and the lubricating oil tank 9 cannot be made so large due to the mechanical structure. A sufficient return flow rate of the lubricating oil 7 to the lubricating oil tank 9 can be ensured without the need for turret 1.
Of course, the cutting oil mixed with water that has entered the casing upper part 1a and the casing lower part lb can be discharged outside the turret l to prevent the harmful effect of the cutting oil on the drive mechanism. , a sufficient flow rate of the lubricating oil 7 to be supplied to the drive mechanism can be ensured, and since no pump is used in the return pipe IO, the possibility of pump failure can be reduced and the maintainability of the lubrication system can be improved.
加えてこの方法によれば、タレットｌの内部に圧縮空気
を供給するので、タレット１内の空気を清浄化するとと
もにタレットＩ内への切削油の侵入自体を阻止して錆の
発生を防止する効果ももたらすことができる。In addition, according to this method, since compressed air is supplied to the inside of the turret L, the air inside the turret 1 is purified, and the cutting oil itself is prevented from entering into the turret I, thereby preventing the occurrence of rust. It can also have an effect.
以上、図示例に基づき説明したが、この発明は上述の例
に限定されるものでなく、例えば、タレットの構造や潤
滑油の供給側の装置構成が異なっていても適用可能であ
る。Although the present invention has been described above based on the illustrated example, the present invention is not limited to the above-mentioned example, and can be applied even if, for example, the structure of the turret or the device configuration on the lubricating oil supply side is different.
（発明の効果）
かくしてこの発明のタレット式工作機械の潤滑油循環方
法によれば、タレットの内部と潤滑油タンクとの間の戻
し配管の太さが設置スペース上から十分とれないために
その配管を通る潤滑油の通流抵抗が大きくても、ポンプ
を利用することなしに潤滑油タンクへの潤滑油の十分な
戻り流量が確保できるので、駆動機構へ供給する潤滑油
の流量を十分に確保でき、しかも、タレットの内部から
潤滑油タンクへ向かう戻し配管にポンプを使用しないの
で潤滑系の保全性を向上させることができる。(Effects of the Invention) Thus, according to the lubricating oil circulation method for a turret-type machine tool of the present invention, the thickness of the return piping between the inside of the turret and the lubricating oil tank cannot be taken from the installation space, so the piping Even if the flow resistance of lubricating oil is large, a sufficient flow rate of lubricating oil can be returned to the lubricating oil tank without using a pump, ensuring a sufficient flow rate of lubricating oil supplied to the drive mechanism. Furthermore, since no pump is used in the return piping from the inside of the turret to the lubricating oil tank, the maintainability of the lubricating system can be improved.
そして、圧縮空気の圧力を０．２〜０．４ｋｇ／ｃｍ２
とすれば、戻し配管の太さを十分太くできなくても上記
潤滑油圧送作用を確保できるとともに、タレットに用い
られているシール材の寿命の低下とタレット外への潤滑
油の漏れの発生とを有効に防止することができる。Then, set the pressure of compressed air to 0.2 to 0.4 kg/cm2.
If so, it is possible to ensure the above-mentioned lubricating oil pressure sending effect even if the thickness of the return piping cannot be made sufficiently thick, and it also reduces the life expectancy of the sealing material used in the turret and prevents leakage of lubricating oil to the outside of the turret. can be effectively prevented.
尚、この方法によれば、タレットの内部に圧縮空気を供
給するので、タレット内の空気を清浄化するとともにタ
レット内への切削油の侵入自体を阻止して錆の発生を防
止する効果ももたらすことができる。According to this method, compressed air is supplied to the inside of the turret, which not only purifies the air inside the turret, but also prevents cutting oil from entering the turret, thereby preventing the occurrence of rust. be able to.
第１図はこの発明のタレット式工作機械の潤滑油循環方
法の一実施例を適用した潤滑系を示す構成図、
第２図および第３図は従来のタレット式工作機械の潤滑
油循環方法を適用した潤滑系をそれぞれ示す構成図であ
る。
１−タレット ２・−・−油温管理装置３−・
−給油配管 ４゛・“汲み出し配管７゛潤滑油
９−潤滑油タンク１０−一戻し配管
１３−・給気配管第１図Fig. 1 is a block diagram showing a lubrication system to which an embodiment of the lubricating oil circulation method for a turret type machine tool of the present invention is applied, and Figs. 2 and 3 show a conventional lubricating oil circulation method for a turret type machine tool. FIG. 3 is a configuration diagram showing each applied lubrication system. 1-Turret 2--Oil temperature control device 3--
- Oil supply piping 4゛・"Pumping piping 7" Lubricating oil 9-Lubricating oil tank 10-Return piping
13-・Air supply piping diagram 1
Claims (1)
の外部の潤滑油タンクとの間で潤滑油を循環させるに際
し、 前記タレットの内部に、圧縮空気を供給することを特徴
とする、タレット式工作機械の潤滑油循環方法。 ２、前記圧縮空気の圧力は、０．２〜０．４ｋｇ／ｃｍ
＾２とすることを特徴とする、請求項１記載のタレット
式工作機械の潤滑油循環方法。[Claims] 1. When circulating lubricating oil between the inside of a turret of a turret-type machine tool and a lubricating oil tank outside the turret, compressed air is supplied to the inside of the turret. A lubricating oil circulation method for turret type machine tools. 2. The pressure of the compressed air is 0.2 to 0.4 kg/cm
The lubricating oil circulation method for a turret type machine tool according to claim 1, characterized in that: ^2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2055026A JP2822548B2 (en) | 1990-03-08 | 1990-03-08 | Lubricating oil circulation method for turret type machine tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2055026A JP2822548B2 (en) | 1990-03-08 | 1990-03-08 | Lubricating oil circulation method for turret type machine tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03256644A true JPH03256644A (en) | 1991-11-15 |
| JP2822548B2 JP2822548B2 (en) | 1998-11-11 |
Family
ID=12987158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2055026A Expired - Fee Related JP2822548B2 (en) | 1990-03-08 | 1990-03-08 | Lubricating oil circulation method for turret type machine tools |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2822548B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205511A (en) * | 2011-05-30 | 2011-10-05 | 浙江西菱台钻制造有限公司 | Coolant circulating system for deep hole drilling machine |
| JP2015177610A (en) * | 2014-03-14 | 2015-10-05 | 三菱電機株式会社 | Seal oil processing device and rotary electric machine system with the same |
| CN109500649A (en) * | 2017-09-15 | 2019-03-22 | 株式会社松浦机械制作所 | Cut the supply method of oil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6211550U (en) * | 1985-07-03 | 1987-01-24 | ||
| JPS6427609A (en) * | 1987-07-21 | 1989-01-30 | Al Flow Kk | Recovery filtration equipment for lubricating oil |
-
1990
- 1990-03-08 JP JP2055026A patent/JP2822548B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6211550U (en) * | 1985-07-03 | 1987-01-24 | ||
| JPS6427609A (en) * | 1987-07-21 | 1989-01-30 | Al Flow Kk | Recovery filtration equipment for lubricating oil |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205511A (en) * | 2011-05-30 | 2011-10-05 | 浙江西菱台钻制造有限公司 | Coolant circulating system for deep hole drilling machine |
| JP2015177610A (en) * | 2014-03-14 | 2015-10-05 | 三菱電機株式会社 | Seal oil processing device and rotary electric machine system with the same |
| CN109500649A (en) * | 2017-09-15 | 2019-03-22 | 株式会社松浦机械制作所 | Cut the supply method of oil |
| CN109500649B (en) * | 2017-09-15 | 2020-12-29 | 株式会社松浦机械制作所 | Method for supplying cutting oil |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2822548B2 (en) | 1998-11-11 |
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