JPH0748366Y2 - Structure of the headstock cover - Google Patents
Structure of the headstock coverInfo
- Publication number
- JPH0748366Y2 JPH0748366Y2 JP10266190U JP10266190U JPH0748366Y2 JP H0748366 Y2 JPH0748366 Y2 JP H0748366Y2 JP 10266190 U JP10266190 U JP 10266190U JP 10266190 U JP10266190 U JP 10266190U JP H0748366 Y2 JPH0748366 Y2 JP H0748366Y2
- Authority
- JP
- Japan
- Prior art keywords
- cover
- headstock
- cylinder
- chuck
- air
- 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 - Lifetime
Links
- 230000020169 heat generation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Auxiliary Devices For Machine Tools (AREA)
- Turning (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本考案は動力チャック用のチャックシリンダを備える旋
盤の主軸台カバーの構造に関する。The present invention relates to a structure of a headstock cover of a lathe equipped with a chuck cylinder for a power chuck.
従来の技術 従来の主軸台のカバーは第２図に示すように加工部位の
カバー１と隔離して主軸台２の全面を覆う主軸台カバー
３が取付けられていた。2. Description of the Related Art As shown in FIG. 2, a conventional headstock cover is provided with a headstock cover 3 which covers the entire surface of the headstock 2 and is separated from the cover 1 of the machined portion.
考案が解決しようとする課題 主軸台２には主モータ（ビルトインモータ４等）動力チ
ャックのチャックシリンダ5,チャックシリンダ作動用の
ソレノイド等が付属されており、これ等のものからの発
熱で主軸台カバー３内は外気より高い温度となる。その
為主軸台２及び主軸台が取付けられている脚６に熱変位
が発生し、工作物の加工寸法にばらつきが生じる。Problems to be solved by the invention The headstock 2 is provided with a chuck cylinder 5 for a main motor (built-in motor 4, etc.) power chuck, a solenoid for operating the chuck cylinder, etc. The temperature inside the cover 3 is higher than that of the outside air. Therefore, thermal displacement occurs in the headstock 2 and the leg 6 to which the headstock is attached, and the machining dimensions of the workpiece vary.
本考案は従来の技術の有するこのような問題点に鑑みな
されたものであり、その目的とするところは主軸台カバ
ー内に熱気が溜まらないようにしてカバー内温度を外気
なみにする主軸台カバーを提供しようとするものであ
る。The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to prevent the hot air from accumulating in the headstock cover so that the temperature inside the headstock cover is equal to the outside air. Is to provide.
課題を解決するための手段 上述の目的を達成するために本考案は、主軸にチャック
シリンダを備える主軸台のカバーにおいて、チャックシ
リンダ外周を囲み後方を開口するシリンダカバーを主軸
台に設け、主軸台カバーには外気を導入する風窓又は及
び隙間を設けるとともに後面には前記シリンダカバーの
外周に空気流通道を形成するように外包する筒状カバー
を設けたものである。Means for Solving the Problems In order to achieve the above-mentioned object, the present invention relates to a headstock cover having a chuck cylinder on a spindle, in which a cylinder cover surrounding the outer periphery of the chuck cylinder is provided in the headstock, A wind window for introducing outside air and / or a gap is provided in the cover, and a cylindrical cover is provided on the rear surface of the cylinder cover for enclosing the cylinder cover so as to form an air flow passage.
作用 主軸とともに回転するチャックシリンダにつれて回転す
る熱められた空気が遠心力で外周方向に移動されシリン
ダカバーに誘導されて筒状カバーの後方に排出される。
この空気の流れが風窓または隙間より外気を吸い込みシ
リンダカバーと筒状カバー間の空気路を通して循環させ
主軸台カバー内の温度上昇を抑制する。The heated air that rotates along with the chuck cylinder that rotates with the main shaft is moved in the outer peripheral direction by centrifugal force, is guided by the cylinder cover, and is discharged behind the cylindrical cover.
This air flow sucks the outside air through the wind window or the gap and circulates it through the air passage between the cylinder cover and the tubular cover to suppress the temperature rise in the headstock cover.
実施例 第１図にもとづき説明する。Embodiment An explanation will be given based on FIG.
NC旋盤の脚11の上に主軸台12が載置固定されていて、主
軸台12には主軸13が前軸受14,中間軸受15,後軸受16で回
転可能に軸承されている。主軸14は中間軸受15と後軸受
16との間にロータ17が固設され主軸台に嵌装のステータ
18に高周波が印加されて高速回転されるピルトインモー
タ形式の駆動である。また主軸13の前端には動力チャッ
ク20が同心に嵌着されており、爪開閉のドローバ21が主
軸13の中心を貫通している。また主軸13の後端には主軸
13に同心に固着した取付筒体22にチャックシリンダ23が
同心に固着され、そのピストンのロッド24がドローバ21
に連結されている。そしてチャックシリンダ23への作動
油は回転継手25を介して図示しない供給源から供給され
る。A headstock 12 is placed and fixed on a leg 11 of an NC lathe, and a headstock 13 is rotatably supported on a headstock 12 by a front bearing 14, an intermediate bearing 15, and a rear bearing 16. Main shaft 14 is intermediate bearing 15 and rear bearing
A rotor 17 is fixedly installed between the stator 17 and a stator mounted on the headstock.
It is a Pilt-in motor type drive that applies high frequency to 18 and rotates at high speed. A power chuck 20 is concentrically fitted to the front end of the main shaft 13, and a draw bar 21 for opening and closing the claw penetrates the center of the main shaft 13. At the rear end of the main shaft 13,
The chuck cylinder 23 is concentrically fixed to the mounting cylinder 22 which is concentrically fixed to the 13, and the rod 24 of the piston is attached to the drawbar 21.
Are linked to. The hydraulic oil to the chuck cylinder 23 is supplied from a supply source (not shown) via the rotary joint 25.
主軸台12の後部には主軸13と同心となる位置にチャック
シリンダ23の外周を囲むラッパ状のシリンダカバー27が
固設されている。また主軸台カバー28はシリンダカバー
27に対向する部分に窓が開けられ、シリンダカバー27の
外周を覆う円筒状カバー29が取付けられていて、シリン
ダカバー27の外周に環状の空気通路が形成されている。
さらに主軸台カバー28には側面に好ましい左右，上面位
置に１個所以上給気風窓30が開口されている。A trumpet-shaped cylinder cover 27 that surrounds the outer circumference of the chuck cylinder 23 is fixedly provided at a position concentric with the spindle 13 at the rear of the headstock 12. The headstock cover 28 is a cylinder cover.
A window is opened in a portion facing 27, a cylindrical cover 29 covering the outer periphery of the cylinder cover 27 is attached, and an annular air passage is formed in the outer periphery of the cylinder cover 27.
Further, the headstock cover 28 is provided with one or more air supply windows 30 at the right and left sides, and the upper surface position, which is preferable on the side surface.
31は加工部位のカバー、32は切粉受皿、33は切削液タン
クである。Reference numeral 31 is a cover of a processing part, 32 is a chip saucer, and 33 is a cutting fluid tank.
このように構成されたものにおいて、動力チャック20に
工作物が把持され図示しない刃物で加工が連続して行わ
れると、高周波モータからの発熱、軸受14,15,16からの
発熱、工作物の着脱によるチャックシリンダ23の発熱或
いは脚部に内蔵されたチャックシリンダ作動用のソレノ
イド等からの発熱により主軸台カバー28内の温度が上昇
する。しかし主軸13の高速回転によりチャックシリンダ
23回りの空気がつれて回転され、遠心力で外周方向への
風が発生し、その風はシリンダカバー27のラッパ状内面
に誘導されて主軸後側へ矢印方向に移動されカバー外に
排出される。この空気の移動により給気風窓30或いは主
軸台カバー28の下部の隙間より外気が吸い込まれ矢印方
向に移動して主軸台カバー28内の空気を循環させ熱気を
シリンダカバー27外周の空気路より排出してカバー内の
温度上昇をおさえカバー内外の温度差を少なくする。In such a structure, when the workpiece is gripped by the power chuck 20 and continuously processed by a blade not shown, heat generation from the high frequency motor, heat generation from the bearings 14, 15 and 16 The temperature inside the headstock cover 28 rises due to heat generation of the chuck cylinder 23 due to attachment / detachment or heat generation from a chuck cylinder operating solenoid or the like incorporated in the leg portion. However, due to the high speed rotation of the spindle 13, the chuck cylinder
The air around 23 is rotated and is rotated, and a wind is generated in the outer peripheral direction by the centrifugal force.The wind is guided to the trumpet-shaped inner surface of the cylinder cover 27, moved to the rear side of the spindle in the direction of the arrow, and discharged outside the cover. It Due to this movement of air, outside air is sucked in through the air supply air window 30 or the gap below the headstock cover 28 and moves in the direction of the arrow to circulate the air in the headstock cover 28 and discharge hot air from the air passage around the cylinder cover 27. The temperature rise inside the cover is suppressed and the temperature difference inside and outside the cover is reduced.
考案の効果 上述のように構成したので本考案は以下の効果を奏す
る。EFFECTS OF THE INVENTION Since the present invention is configured as described above, the present invention has the following effects.
主軸の回転によるチャックシリンダの回転で発生する風
を有効に利用したので、換気のための特別のファンを設
ける必要がなく低コストで温度上昇を抑制することがで
き主軸台脚等の熱変位による悪影響を少なくすることが
可能となった。Because the wind generated by the rotation of the chuck cylinder due to the rotation of the spindle is effectively used, it is not necessary to install a special fan for ventilation, and the temperature rise can be suppressed at low cost, and the thermal displacement of the headstock legs etc. It has become possible to reduce adverse effects.
第１図は本考案の主軸台カバーの説明断面図、第２図は
従来の主軸台カバーの説明断面図である。 11……脚、12……主軸台 13……主軸、17……ロータ 18……ステータ、23……チャックシリンダ 27……シリンダカバー、 28……主軸台カバー、29……円筒状カバー 30……給気用風窓FIG. 1 is an explanatory sectional view of a headstock cover of the present invention, and FIG. 2 is an explanatory sectional view of a conventional headstock cover. 11 …… Leg, 12 …… Spindle base 13 …… Spindle, 17 …… Rotor 18 …… Stator, 23 …… Chuck cylinder 27 …… Cylinder cover, 28 …… Spindle base cover, 29 …… Cylindrical cover 30… … Air supply window
Claims (1)
カバーにおいて、チャックシリンダ外周を囲み後方を開
口するシリンダカバーを主軸台に設け、主軸台カバーに
は外気を導入する風窓又は及び隙間を設けるとともに後
面には前記シリンダカバーの外周に空気流通路を形成す
るように外包する筒状カバーを設けてなり、チャックシ
リンダの回転でシリンダ回りの風によりカバー内の熱気
を排出することを特徴とする主軸台カバーの構造。1. A headstock cover having a chuck cylinder on a main shaft, wherein a cylinder cover surrounding the outer periphery of the chuck cylinder and opening rearward is provided on the headstock, and a wind window or a gap for introducing outside air is provided on the headstock cover. The main shaft is characterized in that a cylindrical cover is provided on the rear surface of the cylinder cover so as to enclose the cylinder cover so as to form an airflow passage, and the hot air in the cover is discharged by the wind around the cylinder when the chuck cylinder rotates. Structure of the base cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10266190U JPH0748366Y2 (en) | 1990-09-29 | 1990-09-29 | Structure of the headstock cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10266190U JPH0748366Y2 (en) | 1990-09-29 | 1990-09-29 | Structure of the headstock cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0460645U JPH0460645U (en) | 1992-05-25 |
| JPH0748366Y2 true JPH0748366Y2 (en) | 1995-11-08 |
Family
ID=31847098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10266190U Expired - Lifetime JPH0748366Y2 (en) | 1990-09-29 | 1990-09-29 | Structure of the headstock cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0748366Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8079788B2 (en) | 2007-04-03 | 2011-12-20 | Fanuc Ltd | Machine tool with main body covered with cover |
-
1990
- 1990-09-29 JP JP10266190U patent/JPH0748366Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8079788B2 (en) | 2007-04-03 | 2011-12-20 | Fanuc Ltd | Machine tool with main body covered with cover |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0460645U (en) | 1992-05-25 |
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