JPS61214929A - Bed for machine tool - Google Patents
Bed for machine toolInfo
- Publication number
- JPS61214929A JPS61214929A JP5614585A JP5614585A JPS61214929A JP S61214929 A JPS61214929 A JP S61214929A JP 5614585 A JP5614585 A JP 5614585A JP 5614585 A JP5614585 A JP 5614585A JP S61214929 A JPS61214929 A JP S61214929A
- Authority
- JP
- Japan
- Prior art keywords
- cutting oil
- bed
- groove
- cutting
- machine tool
- 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
- 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
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/128—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling frame parts
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〉
本発明は、温度分布を均一にしてこれの折れ曲がり変形
を極小に抑え、工作精度の向上を図ることができるよう
にした工作機械用ベッドに関するものである。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a machine tool bed that has a uniform temperature distribution, minimizes bending deformation, and improves machining accuracy. It is something.
〈従来の技術と問題点〉
第３図に工作機械の一例として横型マシニングセンタを
示すが、これのべ７ド０１上にはコラム０３Ｌ＋曹楠丁
札＾Ａ獣謁Ｗ七栖イ２．１工 １４１．０すｊヰベ、。<Prior art and problems> Fig. 3 shows a horizontal machining center as an example of a machine tool. 0sujive,.
ドＯ１ｋに設置されたレール０１０ ヒを摺動可能であ
り、又被加工物０４はベッド０１に対して回転可能なテ
ーブル０１１上にセットされている。而して、この液加
１：物０４はコラム０４から突出し、不図示の駆動装置
によって回転駆動される切削工具０５によって所要の加
工が施される。The workpiece 04 is set on a table 011 that can be slid on a rail 010 installed on the bed 01k, and the workpiece 04 can be rotated with respect to the bed 01. The liquid 1: object 04 protrudes from the column 04, and is subjected to a required processing by a cutting tool 05 which is rotationally driven by a drive device (not shown).
ところで、ベッド０１には１図示の始く、被加工物０４
と切削工具０５の中間位置に溝０２が形成されている。By the way, there is a workpiece 04 on the bed 01, as shown in the figure.
A groove 02 is formed at an intermediate position between the cutting tool 05 and the cutting tool 05.
この溝０２には切削油が流れており、被加工物０４の加
工によって発生した切粉は該溝ｏ２へ落下し、ここを流
れる切削油と共にベッドＯ１外へ排出される。ところが
、この切粉は加工時の切削熱を受けて高温となっており
、これがベッド０１の上面側に設けられた溝０２内を切
削油と共に流れるため、ベッド０１の上面側の温度が下
面側のそれに比して高くなり、ベッド０１の上下面で温
度分布に不均一が生ずる。この結果、ベッドＯ１の上面
側の熱膨張量が大きくなり、このため、第４図に示す如
く、ベッド０１は上に凸状を成して折れ曲がり変形する
。そしてこのベッドＯ１の祈れ曲がり書形が生ずれば、
被加工物０４と切削工具０５との相対位置関係が狂い、
加工精度が低下するという問題が生ずる。Cutting oil flows in this groove 02, and chips generated by machining the workpiece 04 fall into the groove o2 and are discharged to the outside of the bed O1 together with the cutting oil flowing therein. However, these chips have a high temperature due to cutting heat during machining, and this flows along with the cutting oil in the groove 02 provided on the top side of the bed 01, so that the temperature on the top side of the bed 01 is lower than that on the bottom side. The temperature distribution becomes higher than that of the bed 01, and uneven temperature distribution occurs on the upper and lower surfaces of the bed 01. As a result, the amount of thermal expansion on the upper surface side of the bed O1 becomes large, so that the bed O1 forms an upwardly convex shape and is bent and deformed, as shown in FIG. And if this prayer curved calligraphy of bed O1 occurs,
The relative positional relationship between the workpiece 04 and the cutting tool 05 is out of order,
A problem arises in that machining accuracy decreases.
本発明は、上記技術的状況にかんがみてなされたもので
、その目的とするところは、工作機械用ベッドの上、下
面側の温度差を極小に抑えて、これの折れ曲がり変形を
防止し、工作物の加工精度を高めることにある。The present invention has been made in view of the above technical situation, and its purpose is to minimize the temperature difference between the top and bottom sides of a machine tool bed, prevent bending and deformation of the bed, and The aim is to improve the processing accuracy of objects.
〈問題点を解決するための手段〉
前記問題を解決すべく本発明では、工作機械用ベッドの
上部に、落下する切粉を受け、これを切削油と共に流す
溝を設け、下部には切削油を循環させる切削油孔を設け
、これら溝と切削油孔とを配管にて連絡するとともに、
切削油孔の一端を切削油ポンプに連結したのである。<Means for Solving the Problems> In order to solve the above-mentioned problems, the present invention provides a groove in the upper part of the bed for a machine tool to catch falling chips and to flow them together with cutting oil, and a groove in the lower part to collect the cutting chips. A cutting oil hole is provided to circulate the oil, and these grooves and the cutting oil hole are connected via piping.
One end of the cutting oil hole was connected to the cutting oil pump.
く作 用）
而して、上記構成の工作機械用ベッドによれば、切粉が
有する切削熱を受けて温度の上昇した切削油はベッド上
、下に配した溝及び切削油孔を循環するため、ベッドの
上下面の温度差が極小に抑えられてこれの折れ曲がり変
形が防止され、被加工物と切削工具との相対位置関係が
常に一定に保たれて加工精度向上が図られる。According to the machine tool bed having the above configuration, the cutting oil whose temperature has increased due to the cutting heat of the chips circulates through the grooves and cutting oil holes arranged above and below the bed. Therefore, the temperature difference between the upper and lower surfaces of the bed is suppressed to a minimum, preventing bending and deformation of the bed, and the relative positional relationship between the workpiece and the cutting tool is always maintained constant, improving machining accuracy.
〈実施例）
以下に本発明の一実施例を添付図面に基づいて説明する
。<Example> An example of the present invention will be described below based on the accompanying drawings.
第１図は本発明に係るベッドを有して成る工作機械下部
の一部破断側面図、第２図は第１図のＡ−Ａ線断面図で
ある。FIG. 1 is a partially cutaway side view of the lower part of a machine tool having a bed according to the present invention, and FIG. 2 is a sectional view taken along line A--A in FIG.
第１図に示す横型マシニングセンタは、第３図に示すも
のと同様にベッドｌ上にコラム３と被加工物４を設置し
ており、コラム３はレールＩＯ上を摺動自在で、被加工
物４は旋回自在なテーブルｌｌ上にセットされている。The horizontal machining center shown in Fig. 1 has a column 3 and a workpiece 4 installed on a bed l, similar to the one shown in Fig. 4 is set on a rotatable table 11.
ところで、ベッドｌの上部には被加工物４の切削加工に
よって発生し、落下する切粉を受け、これを切削油と共
に流す溝２が形成され、下部には切削油を循環させる切
削油孔６が溝２に平行に形成されている。そして、上記
溝２と切削油孔６とはベッドｌの一側面に結着された横
Ｕ字状を成す配管７によって連絡されている。又、ベッ
ドｌの他側面には溝２に連通ずるシュート９及び切削油
孔６に連通する配管８が連結されており。By the way, a groove 2 is formed in the upper part of the bed l to receive the falling chips generated by cutting the workpiece 4 and to flow them together with the cutting oil, and a cutting oil hole 6 in the lower part is formed to circulate the cutting oil. is formed parallel to the groove 2. The groove 2 and the cutting oil hole 6 are connected to each other by a horizontal U-shaped pipe 7 connected to one side of the bed l. Further, a chute 9 communicating with the groove 2 and a pipe 8 communicating with the cutting oil hole 6 are connected to the other side of the bed 1.
配管８は図示しない切削油ポンプに連結されている。更
に、シュート９は図示しない切削油タンクに連結され、
切削油タンクは上記切削油ポンプに連結されている。従
って、切削油タンク、切削油ポンプ、配管８、切削油孔
６、配管７、溝２及びシュート９は閉回路を構成してい
る。The pipe 8 is connected to a cutting oil pump (not shown). Further, the chute 9 is connected to a cutting oil tank (not shown),
The cutting oil tank is connected to the cutting oil pump. Therefore, the cutting oil tank, the cutting oil pump, the pipe 8, the cutting oil hole 6, the pipe 7, the groove 2, and the chute 9 constitute a closed circuit.
而して、潤滑油ポンプにて加圧された潤滑油は第２図中
、矢印にて示す如く配管８、切削油孔６及び配管７を通
って溝２内を流される。被加工物４の加工によって発生
する高温の切粉は溝２内に落下し、ここを流れる潤滑油
と共に流され、シュート９を経てベッド１外へ排出され
る。The lubricating oil pressurized by the lubricating oil pump flows through the groove 2 through the pipe 8, the cutting oil hole 6, and the pipe 7 as indicated by arrows in FIG. High-temperature chips generated by machining the workpiece 4 fall into the groove 2, are swept away together with the lubricating oil flowing therein, and are discharged to the outside of the bed 1 via the chute 9.
シュート９を経て排出される切粉と切削油はそれぞれ分
離され、切削油は切削油タンクに戻され、再び切削油ポ
ンプにて加圧されてベッドｌに設けられた切削油孔６、
配管７及び＄１Ｉ１２を通って閉回路内を循旧十ス−
ところで、この切削油は高温の切粉から熱を受けてその
温度が上昇するが、これが流れる溝２、切削油孔６をベ
ッドｌの上、下に設けたため、ベッドｌの上、下部は切
削油によって一様に加熱され、この結果、ベッドｌの上
、下部の温度差は極小に抑えられ、上、下部の熱膨張差
に基づくベッドｌの折れ曲がり変形が防止される。ベッ
ドｌの折れ曲がり変形が防止されれば、被加工物４とコ
ラム３に設けた切削工具の相対位置関係は常に一定に保
たれ、従って被加工物４の加工精度が高く保たれる。The chips and cutting oil discharged through the chute 9 are separated, and the cutting oil is returned to the cutting oil tank, where it is again pressurized by the cutting oil pump, and the cutting oil hole 6 provided in the bed l.
By the way, this cutting oil receives heat from high-temperature chips and its temperature rises. Since the upper and lower parts of the bed l are installed above and below the bed l, the upper and lower parts of the bed l are uniformly heated by the cutting oil, and as a result, the temperature difference between the upper and lower parts of the bed l is kept to a minimum, and the difference in thermal expansion between the upper and lower parts of the bed l is minimized. Bending deformation of the bed l based on this is prevented. If bending deformation of the bed 1 is prevented, the relative positional relationship between the workpiece 4 and the cutting tool provided on the column 3 is always kept constant, and therefore the machining accuracy of the workpiece 4 is kept high.
尚、ベッドｌの上、下の熱膨張差を完全に零とすること
は不可能なため、この熱膨張差に基づくベーｊドｌの極
く微小な折れ曲がり変形に応じて被加工物４と切削工具
との相対位置関係に補正を加えれば、加工精度を更に高
めることができる。In addition, since it is impossible to completely reduce the thermal expansion difference between the top and bottom of the bed l to zero, the workpiece 4 and Machining accuracy can be further improved by correcting the relative positional relationship with the cutting tool.
以上の実施例は特に本発明を横型マシニングセンタに適
用した例を示したが１本発明はその他横中ぐり盤、プラ
ノミラー等任意の工作機械に適用できる。Although the above embodiments particularly show examples in which the present invention is applied to a horizontal machining center, the present invention can be applied to any other machine tool such as a horizontal boring machine or a plano mirror.
（発明の効果〉
以上の説明で明らかな如く本発明によれば、工作機械用
ベッドの上、下に切削油を流す溝及び切削油孔を設けた
ため、該ベッドの上、下部は切削油によって一様に加熱
され、上、下部の熱膨張差を極小に抑えて当該ベッドの
折れ曲がり変形を防止することができ、この結果被加工
物と切削工具との相対位置関係を一定に保って加工精度
を高めることができる。(Effects of the Invention) As is clear from the above description, according to the present invention, grooves and holes for flowing cutting oil are provided above and below the machine tool bed, so that the upper and lower parts of the bed are covered with cutting oil. It is possible to heat the bed uniformly and minimize the difference in thermal expansion between the upper and lower parts, preventing bending and deformation of the bed.As a result, the relative positional relationship between the workpiece and cutting tool is maintained constant, resulting in machining accuracy. can be increased.
第１図は本発明に係るベッドを有して成る工作機械下部
の一部破断側面図、第２図は第１図のＡ−Ａ線断面図、
第３図は従来のベッドを有して成る工作機械の一部破断
側面図、第４図は同工作機械のベッドの折れ曲がり変形
状態を示す側面図である。
図 面 中。
１ は工作機械用ベッド。
２ は溝。
３ はコラム、
４ は被加工物、
６ は切削油孔、
７．８は配管。
９ はシュートである。FIG. 1 is a partially cutaway side view of the lower part of a machine tool having a bed according to the present invention, FIG. 2 is a sectional view taken along line A-A in FIG.
FIG. 3 is a partially cutaway side view of a machine tool having a conventional bed, and FIG. 4 is a side view showing the bed of the same machine tool in a bent and deformed state. Inside the drawing. 1 is a machine tool bed. 2 is a groove. 3 is the column, 4 is the workpiece, 6 is the cutting oil hole, and 7.8 is the piping. 9 is a shot.
Claims (1)
に設け、下部には切削油を循環させる切削油孔を設け、
これら溝と切削油孔とを配管にて連絡するとともに、切
削油孔の一端を切削油ポンプに連結して構成されること
を特徴とする工作機械用ベッド。A groove is provided at the top to catch the falling chips and flow them along with the cutting oil, and a cutting oil hole is provided at the bottom to circulate the cutting oil.
A machine tool bed characterized in that these grooves and cutting oil holes are connected through piping, and one end of the cutting oil hole is connected to a cutting oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5614585A JPS61214929A (en) | 1985-03-22 | 1985-03-22 | Bed for machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5614585A JPS61214929A (en) | 1985-03-22 | 1985-03-22 | Bed for machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61214929A true JPS61214929A (en) | 1986-09-24 |
Family
ID=13018911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5614585A Pending JPS61214929A (en) | 1985-03-22 | 1985-03-22 | Bed for machine tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61214929A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007054903A (en) * | 2005-08-23 | 2007-03-08 | Jtekt Corp | Bed structure of machine tool |
| KR100694848B1 (en) | 2006-06-21 | 2007-03-14 | 주식회사진영정기 | Saddle of surface grinding machine |
| EP2907620A1 (en) * | 2014-02-17 | 2015-08-19 | DECKEL MAHO Pfronten GmbH | Machine tool with a machine frame made of structural components and method therefor |
-
1985
- 1985-03-22 JP JP5614585A patent/JPS61214929A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007054903A (en) * | 2005-08-23 | 2007-03-08 | Jtekt Corp | Bed structure of machine tool |
| US7861627B2 (en) | 2005-08-23 | 2011-01-04 | Jtekt Corporation | Machine tool bed having fluid channel |
| JP4696779B2 (en) * | 2005-08-23 | 2011-06-08 | 株式会社ジェイテクト | Machine tool bed structure |
| KR100694848B1 (en) | 2006-06-21 | 2007-03-14 | 주식회사진영정기 | Saddle of surface grinding machine |
| EP2907620A1 (en) * | 2014-02-17 | 2015-08-19 | DECKEL MAHO Pfronten GmbH | Machine tool with a machine frame made of structural components and method therefor |
| CN104858709A (en) * | 2014-02-17 | 2015-08-26 | 德克尔马霍普夫龙滕有限公司 | Machine Tool With A Machine Frame Made Of Structural Components And Method Therefor |
| JP2015163427A (en) * | 2014-02-17 | 2015-09-10 | ディッケル マホ プロンテン ゲーエムベーハー | Machine tool with machine rack constructed of structural parts |
| US10118267B2 (en) | 2014-02-17 | 2018-11-06 | Deckel Maho Pfronten Gmbh | Machine tool with a machine rack constructed of structural parts |
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