JPH0466659B2 - - Google Patents
Info
- Publication number
- JPH0466659B2 JPH0466659B2 JP10819784A JP10819784A JPH0466659B2 JP H0466659 B2 JPH0466659 B2 JP H0466659B2 JP 10819784 A JP10819784 A JP 10819784A JP 10819784 A JP10819784 A JP 10819784A JP H0466659 B2 JPH0466659 B2 JP H0466659B2
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- sliding
- column
- spindle head
- thermal displacement
- 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.)
- Expired
Links
- 239000010687 lubricating oil Substances 0.000 claims description 33
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 230000002265 prevention Effects 0.000 claims description 8
- 239000003921 oil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 208000003443 Unconsciousness Diseases 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は熱変位防止装置付き工作機械に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a machine tool with a thermal displacement prevention device.
滑り面に沿つて往復摺動する摺動体、例えば主
軸頭、および摺動体の滑り面が形成されている支
持体、例えばコラムを備えた工作機械において
は、コラムの滑り面が、摺動する主軸頭の熱源、
例えば主軸頭の潤滑油温度などにより熱せられ、
熱変形を生ずる。この熱変形量は、主軸頭が大型
化、高速運転化するに伴い増加し、さらに工作機
械の長時間の使用後においては、加工精度上無視
できない値となる。
In a machine tool equipped with a sliding body, such as a spindle head, which reciprocates along a sliding surface, and a support, such as a column, on which the sliding surface of the sliding body is formed, the sliding surface of the column is connected to the main shaft on which it slides. head heat source,
For example, it is heated by the temperature of the lubricating oil on the spindle head,
Causes thermal deformation. The amount of thermal deformation increases as the spindle head becomes larger and operates at higher speeds, and furthermore, after the machine tool has been used for a long time, it becomes a value that cannot be ignored in terms of machining accuracy.
近年、工作機械の大型化、高速化とともに無人
運転化が進み、長時間の使用においても、コラム
に熱変位を生じない工作機械が要望されている。 In recent years, as machine tools have become larger and faster, unmanned operation has progressed, and there is a demand for machine tools that do not cause thermal displacement in the column even when used for long periods of time.
本発明はこのような点を考慮してなされたもの
であり、支持体に形成された滑り面を摺動体が往
復摺動する工作機械の熱変位を防止し、長時間の
運転に対しても高い加工精度を維持することがで
きる熱変位防止装置付き工作機械を提供すること
を目的とする。
The present invention has been made in consideration of these points, and is designed to prevent thermal displacement of a machine tool in which a sliding body slides back and forth on a sliding surface formed on a support body, and also to prevent long-term operation. The purpose of the present invention is to provide a machine tool equipped with a thermal displacement prevention device that can maintain high machining accuracy.
本発明は、滑り面に沿つて往復摺動する摺動体
と、摺動体の滑り面が形成されている支持体とを
備えた熱変位防止装置付き工作機械であつて、支
持体の滑り面と反対側の面には、摺動体の潤滑油
配管回路から分岐された潤滑油パイプにより形成
された複数の配管ブロツクが、互いに並列な潤滑
油配管回路を構成するようそれぞれ切換弁を介し
て配置されていることを特徴としている。
The present invention is a machine tool equipped with a thermal displacement prevention device that includes a sliding body that reciprocates along a sliding surface and a support body on which a sliding surface of the sliding body is formed. On the opposite surface, a plurality of piping blocks formed by lubricating oil pipes branched from the lubricating oil piping circuit of the sliding body are arranged via switching valves so as to constitute mutually parallel lubricating oil piping circuits. It is characterized by
本発明によれば、摺動体の摺動位置に対応し
て、支持体の背面に配置されている配管ブロツク
の１つに、摺動体の潤滑油とほぼ同一温度の潤滑
油が供給され、支持体の滑り面とその反対側の面
とがほぼ同一の温度にされる。これにより、支持
体の滑り面とその反対側との面が常に熱対称とな
り、支持体の熱変位が防止される。 According to the present invention, lubricating oil having approximately the same temperature as the lubricating oil of the sliding body is supplied to one of the piping blocks arranged on the back surface of the support body in accordance with the sliding position of the sliding body, and The sliding surface of the body and the opposite surface are brought to approximately the same temperature. As a result, the sliding surface of the support and the opposite surface are always thermally symmetrical, and thermal displacement of the support is prevented.
以下、図面を参照して本発明の実施例について
説明する。
Embodiments of the present invention will be described below with reference to the drawings.
第１図は、本発明による熱変位防止装置付き工
作機械における潤滑油配管回路を示す図である。 FIG. 1 is a diagram showing a lubricating oil piping circuit in a machine tool equipped with a thermal displacement prevention device according to the present invention.
主軸頭Ｈに対しては、例えば軸受潤滑用に潤滑
油を供給するための主軸頭潤滑油配管回路１０が
配設されている。この配管回路１０とほぼ同一温
度の潤滑油を別ポンプを用い潤滑油パイプ２０を
経由してコラムＣの背面に供給されている。この
潤滑油パイプ２０はさらに、電磁切換弁２１ａ乃
至２１ｅを介して複数（第１図に示す実施例では
５つ）の配管ブロツク２２ａ乃至２２ｅを形成す
るよう分割されている。配管ブロツク２２ａ乃至
２２ｅは、蛇行配管された潤滑油パイプにより構
成されるとともに、それぞれ互いに並列な潤滑油
配管回路とされている。配管ブロツク２２ａ乃至
２２ｅは、コラムＣの背面、すなわち主軸頭Ｈの
滑り面が形成されている側と反対側の面に、主軸
頭Ｈの摺動方向に向けて順次隣接配置されてい
る。各配管ブロツク２２ａ乃至２２ｅは、下流側
において再び潤滑油パイプ２３に合流し、この潤
滑油パイプ２３は、主軸頭Ｈの潤滑油配管回路１
０と同一の油タンクＴに接続されている。 A spindle head lubricating oil piping circuit 10 for supplying lubricating oil for bearing lubrication, for example, is provided to the spindle head H. Lubricating oil having approximately the same temperature as this piping circuit 10 is supplied to the back of the column C via a lubricating oil pipe 20 using a separate pump. This lubricating oil pipe 20 is further divided to form a plurality (five in the embodiment shown in FIG. 1) of piping blocks 22a to 22e via electromagnetic switching valves 21a to 21e. The piping blocks 22a to 22e are constituted by meandering lubricating oil pipes, and are respectively parallel lubricating oil piping circuits. The piping blocks 22a to 22e are sequentially arranged adjacent to each other in the sliding direction of the spindle head H on the back surface of the column C, that is, on the side opposite to the side on which the sliding surface of the spindle head H is formed. Each of the piping blocks 22a to 22e joins the lubricating oil pipe 23 again on the downstream side, and this lubricating oil pipe 23 is connected to the lubricating oil piping circuit 1 of the spindle head H.
It is connected to the same oil tank T as 0.
第２図は、本発明を横中ぐり盤に適用した例を
示す概略説明図である。すなわち、コラムＣの背
面には、複数の配管ブロツクを形成するよう分割
された潤滑油パイプ２２ａ〜２２ｅが、主軸頭Ｈ
の摺動方向に向けて順次隣接配置され、断熱材２
４によりカバーされている。 FIG. 2 is a schematic explanatory diagram showing an example in which the present invention is applied to a horizontal boring machine. That is, on the back side of the column C, lubricating oil pipes 22a to 22e, which are divided to form a plurality of piping blocks, are connected to the spindle head H.
are arranged adjacent to each other in the sliding direction of the insulation material 2.
Covered by 4.
次にこのような構成からなる本実施例の作用に
ついて説明する。 Next, the operation of this embodiment having such a configuration will be explained.
工作機械の運転開始とともに主軸頭Ｈの配管回
路１０に供給された潤滑油と同等の潤滑油が潤滑
油パイプ２０によりコラムＣの背面側に送られ
る。このコラムＣの背面側に送られた潤滑油は、
主軸頭Ｈの位置に応じて電磁切換弁２１ａ乃至２
１ｅを作動させ、主軸頭Ｈの位置している部分と
正反対側の背面位置に配設されている配管ブロツ
ク２２ａ乃至２２ｅに潤滑油が供給される。第２
図において、潤滑油パイプ２２ａ〜２２ｅの黒く
塗りつぶされている部分は、配管回路１０から潤
滑油が供給されている状態を示し、その他の部分
は無給油状態を示している。 When the machine tool starts operating, lubricating oil equivalent to the lubricating oil supplied to the piping circuit 10 of the spindle head H is sent to the back side of the column C through the lubricating oil pipe 20. The lubricating oil sent to the back side of column C is
Depending on the position of the spindle head H, the electromagnetic switching valves 21a to 2
1e is activated, and lubricating oil is supplied to the piping blocks 22a to 22e disposed at the back side directly opposite to the portion where the spindle head H is located. Second
In the figure, the blacked-out portions of the lubricant oil pipes 22a to 22e indicate a state in which lubricant oil is supplied from the piping circuit 10, and the other portions indicate a state in which no oil is supplied.
これにより、コラムＣの背面には、主軸頭Ｈの
摺動位置と正反対の位置に、常に、主軸頭Ｈに供
給されている潤滑油とほぼ同一の温度の潤滑油が
供給されていることになり、コラムＣの主軸頭摺
動面とその反対側の面（背面）とは熱対称の状態
となる。 As a result, lubricating oil at almost the same temperature as the lubricating oil being supplied to the spindle head H is always supplied to the rear surface of the column C at a position directly opposite to the sliding position of the spindle head H. Therefore, the main shaft head sliding surface of column C and the opposite surface (back surface) are in a state of thermal symmetry.
このように、本実施例によれば、主軸頭Ｈの摺
動変位にもかかわらず、コラムＣの摺動面と背面
とは常に熱的にバランスした状態が維持され、長
時間の使用後においてもコラムＣに熱変位を生ず
ることはない。 In this way, according to this embodiment, despite the sliding displacement of the spindle head H, the sliding surface and the back surface of the column C are always maintained in a thermally balanced state, and even after long-term use, Also, no thermal displacement occurs in column C.
なお、それぞれの配管ブロツクに対応する電磁
切換弁２１ａ乃至２１ｅの選択は、例えば、コラ
ムＣに取付けられた位置検出用リミツトスイツチ
（図示せず）を作動させることにより行なうこと
ができる。 The selection of the electromagnetic switching valves 21a to 21e corresponding to each piping block can be performed, for example, by operating a position detection limit switch (not shown) attached to the column C.
また、第１図に示した実施例においては、配管
ブロツクに潤滑油を供給するポンプを、主軸頭潤
滑油配管回路１０のポンプとは別個のものとして
あるが、両ポンプを共用するようにしてもよい。 Furthermore, in the embodiment shown in FIG. 1, the pump for supplying lubricating oil to the piping block is separate from the pump for the spindle head lubricating oil piping circuit 10, but both pumps can be used in common. Good too.
また、本実施例においては、摺動体として主軸
頭を、支持体としてコラムを備えた横中ぐり盤に
ついて説明したが、この他に支持体としてクロス
レールを備えた平削り盤、プラノミラー等の工作
機械においても同様の効果を得ることができる。 In addition, in this embodiment, a horizontal boring machine was explained which is equipped with a spindle head as a sliding body and a column as a support body, but other machines such as a planing machine equipped with a cross rail as a support body, a plano mirror, etc. Similar effects can be obtained with machine tools.
以上説明したように、本発明によれば、支持体
の滑り面を摺動する摺動体を備えた工作機械の熱
変位を効果的に防止することができ、長時間の運
転によつても高精度な加工能力を維持することが
できる。
As explained above, according to the present invention, it is possible to effectively prevent thermal displacement of a machine tool equipped with a sliding body that slides on the sliding surface of a support, and even when operating for a long time, high Accurate processing ability can be maintained.
第１図は本発明の実施例を示す潤滑油配管回路
図、第２図は本発明を横中ぐり盤に応用した例を
示す概略側断面図である。
１０……主軸頭潤滑油配管回路、２０……潤滑
油パイプ、２１ａ乃至２１ｅ……電磁切換弁、２
２ａ乃至２２ｅ……配管ブロツク、Ｃ……コラ
ム、Ｈ……主軸頭、Ｔ……タンク。
FIG. 1 is a lubricating oil piping circuit diagram showing an embodiment of the present invention, and FIG. 2 is a schematic side sectional view showing an example in which the present invention is applied to a horizontal boring machine. 10... Spindle head lubricating oil piping circuit, 20... Lubricating oil pipe, 21a to 21e... Solenoid switching valve, 2
2a to 22e...piping block, C...column, H...spindle head, T...tank.
Claims (1)
摺動体の滑り面が形成されている支持体とを備え
た熱変位防止装置付き工作機械において、前記支
持体の滑り面と反対側の面には、前記摺動体の潤
滑油配管回路から分岐された潤滑油パイプにより
形成された複数の配管ブロツクが、互いに並列な
潤滑油配管回路を構成するようそれぞれ切換弁を
介して配置されていることを特徴とする熱変位防
止装置付き工作機械。 ２ 支持体がコラム、摺動体が前記コラムに摺動
可能に装着された主軸頭であることを特徴とする
特許請求の範囲第１項記載の熱変位防止装置付き
工作機械。[Scope of Claims] 1. A machine tool equipped with a thermal displacement prevention device, which includes a sliding body that reciprocates along a sliding surface, and a support on which the sliding surface of the sliding body is formed. On the surface opposite to the sliding surface, a plurality of piping blocks formed by lubricating oil pipes branched from the lubricating oil piping circuit of the sliding body each have a switching valve so as to constitute a parallel lubricating oil piping circuit. A machine tool equipped with a thermal displacement prevention device, characterized in that the device is disposed through the thermal displacement prevention device. 2. A machine tool with a thermal displacement prevention device according to claim 1, wherein the support body is a column, and the sliding body is a spindle head slidably mounted on the column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10819784A JPS60255335A (en) | 1984-05-28 | 1984-05-28 | Machine tool equipped with thermal-deformation preventing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10819784A JPS60255335A (en) | 1984-05-28 | 1984-05-28 | Machine tool equipped with thermal-deformation preventing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60255335A JPS60255335A (en) | 1985-12-17 |
| JPH0466659B2 true JPH0466659B2 (en) | 1992-10-23 |
Family
ID=14478473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10819784A Granted JPS60255335A (en) | 1984-05-28 | 1984-05-28 | Machine tool equipped with thermal-deformation preventing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60255335A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6442888B2 (en) * | 2014-07-10 | 2018-12-26 | 株式会社ジェイテクト | Machine tool and control method thereof |
-
1984
- 1984-05-28 JP JP10819784A patent/JPS60255335A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60255335A (en) | 1985-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |