JPH09262727A - Machine tool - Google Patents

Machine tool

Info

Publication number
JPH09262727A
JPH09262727A JP7619196A JP7619196A JPH09262727A JP H09262727 A JPH09262727 A JP H09262727A JP 7619196 A JP7619196 A JP 7619196A JP 7619196 A JP7619196 A JP 7619196A JP H09262727 A JPH09262727 A JP H09262727A
Authority
JP
Japan
Prior art keywords
slide
linear motor
column
frame
axis
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
Application number
JP7619196A
Other languages
Japanese (ja)
Other versions
JP3540091B2 (en
Inventor
Katsuto Endo
Akihiko Fujiwara
Osamu Honda
Masayori Itou
Atsuji Karita
Naoya Matsunaga
Hiroshi Nakagawa
Takao Nakagawa
Torao Takeshita
Jun Watari
Toru Yagami
川 洋 中
川 隆 雄 中
東 正 頼 伊
上 徹 八
田 理 本
永 直 也 松
利 潤 渡
下 虎 男 竹
田 充 二 苅
原 彰 彦 藤
藤 克 仁 遠
Original Assignee
Honda Motor Co Ltd
Mitsubishi Electric Corp
Mitsubishi Heavy Ind Ltd
Mori Seiki Co Ltd
Osaka Kiko Co Ltd
Shinko Electric Co Ltd
Toshiba Mach Co Ltd
三菱重工業株式会社
三菱電機株式会社
大阪機工株式会社
本田技研工業株式会社
東芝機械株式会社
株式会社森精機製作所
神鋼電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd, Mitsubishi Electric Corp, Mitsubishi Heavy Ind Ltd, Mori Seiki Co Ltd, Osaka Kiko Co Ltd, Shinko Electric Co Ltd, Toshiba Mach Co Ltd, 三菱重工業株式会社, 三菱電機株式会社, 大阪機工株式会社, 本田技研工業株式会社, 東芝機械株式会社, 株式会社森精機製作所, 神鋼電機株式会社 filed Critical Honda Motor Co Ltd
Priority to JP07619196A priority Critical patent/JP3540091B2/en
Publication of JPH09262727A publication Critical patent/JPH09262727A/en
Application granted granted Critical
Publication of JP3540091B2 publication Critical patent/JP3540091B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To reduce the production of a couple of force exerted during drive and to suppress residual vibration, produced during starting and a stop, to a minimum by a method wherein a frame part to surround a column in coordination with the body part of a slide is arranged at the slide and a linear motor is disposed between the inner surface of the frame part and the side of the column. SOLUTION: The frame part 5e in a square in cross section of an Y slide 5 is loosely fitted in such a manner to surround the vertical column of an X- slide. Motor mounting plates 5d and 5d to drive the Y-slide 5 in the direction of an Y-axis is caused to securely span between a rectangular plate part 5a in front of the Y-slide and the side of the central box part of the Y-slide. Thus, a drive force is exerted on a position in the vicinity of the center of gravity position of the Y-slide 5 and a couple of force exerted on the Y-slide during drive is reduced and in turn, vibration generated during starting and a stop is suppressed to a minimum.

Description

【発明の詳細な説明】 Detailed Description of the Invention

【0001】 [0001]

【発明の属する技術分野】本発明は、リニアモータを利用した工作機械に関し、特にコラムに対して軸線方向に移動可能としたスライドの支持構造に関する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine tool using a linear motor, and more particularly to a slide support structure that is movable in the axial direction with respect to a column.

【0002】 [0002]

【従来の技術】FTL(フレキシブル・トランスファー
・ライン)においては、最近従来以上に工作機械の生産
性が要求されるようになった。そこで、従来のトランス
ファマシンと同等の生産性を上げるためには、現状の2
倍乃至3倍の高速化を図る必要があり、主軸とともに送
りの高速化が課題となっている。
2. Description of the Related Art In FTL (flexible transfer line), productivity of machine tools has recently been required more than ever. Therefore, in order to increase the productivity equivalent to that of the conventional transfer machine, the current 2
It is necessary to increase the speed by a factor of two to three, and increasing the speed of feed along with the spindle is an issue.

【0003】ところで、工作機械における送り駆動手段
は、一般にボールねじとサーボモータが用いられている
が、ボールねじを使用するもので高速化を図ろうとする
と、DmNの限界、振動や騒音の増大、危険速度、温度
上昇による熱膨張の増大、ハイリード化による剛性の低
下等の問題があり、高速送り、高加減速送りを行うには
限界がある。そのため、最近では摩擦がなく、しかも高
剛性なリニアモータが工作機械の駆動手段に採用されつ
つある。
By the way, a ball screw and a servo motor are generally used as the feed drive means in a machine tool. However, if a ball screw is used to increase the speed, the limit of DmN, increase of vibration and noise, There are problems such as critical speed, increase in thermal expansion due to temperature rise, and decrease in rigidity due to high lead, and there is a limit to performing high speed feed and high acceleration / deceleration feed. Therefore, recently, a linear motor having no friction and high rigidity is being adopted as a driving means of a machine tool.

【0004】この工作機械の駆動手段としてリニアモー
タを使用するものにおいては、特に垂直軸の駆動部で
は、リニアモータが被駆動部を直接駆動することから常
に被駆動部の全重力負荷がモータに作用することにな
り、モータ発熱や電源遮断時の落下等の問題のため、一
般にカウンタバランスが採用されている。
In a machine using a linear motor as a driving means of this machine tool, particularly in a drive section of a vertical axis, the linear motor directly drives the driven section, so that the total gravity load of the driven section is always applied to the motor. Counter balance is generally adopted because of problems such as motor heat generation and dropping when the power is cut off.

【0005】例えば、特開平6−297286号の発明
は、工作機械の駆動手段としてリニアモータを採用した
ものに関するものであって、その公報には、X軸方向に
移動可能に案内支持されるXスライドと、そのXスライ
ドの2つの垂直コラムにY軸方向に移動可能に案内支持
されるYスライドを備え、上記両垂直コラムの互いに背
向する側面と、Yスライドの本体部に一端が支持され他
端がXスライドにガイドレールを介して支持されている
保持フランジ部との間にリニアモータを配設するととも
に、Yスライドの中央上部にカウンタバランス用シリン
ダを配設したものが開示されている。
For example, the invention of Japanese Patent Laid-Open No. 6-297286 relates to a machine which employs a linear motor as a driving means of a machine tool, and in the publication, an X which is guided and supported so as to be movable in the X-axis direction. A slide and a Y slide that is guided and supported by two vertical columns of the X slide so as to be movable in the Y axis direction are provided. One end is supported by side surfaces of the vertical columns facing away from each other and the main body of the Y slide. It is disclosed that a linear motor is arranged between the other end and a holding flange portion supported by an X slide via a guide rail, and a counter balancing cylinder is arranged in the upper center of the Y slide. .

【0006】[0006]

【発明が解決しようとする課題】ところが、上記従来の
装置では、Yスライドの前面のみを支持する保持フラン
ジ部を介してXスライドの側方においてYスライドを駆
動するとともに、Yスライドに作用する重力を油圧シリ
ンダによりスライド前面側中央上部で支持するようにし
てあるため、駆動時にY軸スライドに偶力(モーメン
ト)が作用して、Y軸スライドに歪みが生じ、ひいては
主軸先端位置が変位して加工精度が低下する。特に、円
弧形状をコンタリング加工する際には象限切替え部で問
題が生ずる。また、Yスライド重心位置がYスライド前
面より後方にあり、しかもYスライドの前方部で駆動さ
れるため、Y軸方向の起動停止を行う場合にYスライド
の後方突出部側に残留振動が発生し、加工精度が低下す
る等の問題がある。
However, in the above-mentioned conventional device, the Y slide is driven laterally of the X slide through the holding flange portion that supports only the front surface of the Y slide, and the gravity acting on the Y slide is also exerted. Since the hydraulic cylinder is used to support the center of the slide front side, a couple (moment) is applied to the Y-axis slide during driving, the Y-axis slide is distorted, and the spindle tip position is displaced. Machining accuracy decreases. In particular, when contouring an arc shape, a problem occurs in the quadrant switching section. Further, since the center of gravity of the Y-slide is located behind the front surface of the Y-slide and is driven by the front part of the Y-slide, residual vibration is generated on the rear protrusion part side of the Y-slide when starting and stopping in the Y-axis direction. However, there is a problem that the processing accuracy is lowered.

【0007】本発明はこのような点に鑑み、リニアモー
タとバランス用シリンダ取付位置の違いによって生じる
偶力を無くするとともに、Y軸スライドの重心位置に近
い位置を駆動するようにして、Y軸スライドの変形や振
動を少なくして、加工精度を向上し得るようにした工作
機械を提供することを目的とする。
In view of such a point, the present invention eliminates the couple generated due to the difference between the mounting positions of the linear motor and the balancing cylinder, and drives the Y-axis slide at a position close to the center of gravity of the Y-axis slide. An object of the present invention is to provide a machine tool capable of improving processing accuracy by reducing slide deformation and vibration.

【0008】[0008]

【課題を解決するための手段】第1の発明は、ベッドの
一面側に配設されたコラムに対してそのコラムの軸線方
向に移動可能に案内支持されたスライドを備えた工作機
械において、上記スライドにそのスライドの本体部とと
もに上記コラムを囲繞する枠部を設け、その枠部内面と
コラム側面との間にリニアモータを配設したことを特徴
とする。
A first aspect of the present invention is a machine tool including a slide which is guided and supported with respect to a column disposed on one side of a bed so as to be movable in the axial direction of the column. The slide is provided with a frame portion surrounding the column together with the main body of the slide, and the linear motor is arranged between the inner surface of the frame portion and the side surface of the column.

【0009】第2の発明は、ベッドの一面側に互いに平
行に配設された2つのコラムに対してそのコラムの軸線
方向に移動可能に案内支持されたスライドとを備えた工
作機械において、上記スライドにそのスライドの本体部
とともに上記各コラムをそれぞれ囲繞する枠部を設け、
上記両垂直コラムの互いに背向する側面と上記枠部内面
との間にリニアモータを配設したことを特徴とする。
A second aspect of the present invention is a machine tool provided with two columns arranged parallel to each other on one surface side of a bed, and a slide movably guided in the axial direction of the columns. The slide is provided with a frame part surrounding each of the columns together with the body part of the slide,
It is characterized in that a linear motor is disposed between the side surfaces of the vertical columns which face each other and the inner surface of the frame portion. It is characterized in that a linear motor is disposed between the side surfaces of the vertical columns which face each other and the inner surface of the frame portion.

【0010】さらに、第3の発明は、上記第1或は第2
の発明において、コラムが垂直方向に立設され、その垂直コラムに対してY軸方向に移動可能にYスライドが案内支持されており、そのYスライドに設けられた枠部におけるリニアモータ取付面の背面側と上記Yスライド支持部材の側面との間にカウンタバランス用シリンダを配設したことを特徴とする。
Further, a third invention is the above-mentioned first or second invention.

In the invention, the column is erected vertically, and the Y slide is guided and supported so as to be movable in the Y axis direction with respect to the vertical column, and the linear motor mounting surface of the frame portion provided on the Y slide is A counter balancing cylinder is arranged between the back side and the side surface of the Y slide support member. In the invention, the column is erected vertically, and the Y slide is guided and supported so as to be movable in the Y axis direction with respect to the vertical column, and the linear motor mounting surface of the frame portion provided on the Y slide is A counter balancing cylinder is arranged between the back side and the side surface of the Y slide support member.

【0011】 [0011]

【発明の実施の形態】以下、添付図面を参照して本発明
の実施の形態について説明する。図1は、本発明の工作
機械全体を示す正面斜視図、図2は同背面斜視図であ
る。図1及び図2において符号1は工作機械の垂直ベッ
ドであり、その垂直ベッド1の前面側下部には水平ベッ
ド2が配設され、その水平ベッド2上に図示しない被加
工物を載置固定するテーブル3が固定されている。
Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front perspective view showing the entire machine tool of the present invention, and FIG. 2 is a rear perspective view thereof. In FIGS. 1 and 2, reference numeral 1 is a vertical bed of a machine tool, and a horizontal bed 2 is arranged on the lower part of the front side of the vertical bed 1, and a workpiece (not shown) is placed and fixed on the horizontal bed 2. The table 3 is fixed.

【0012】上記垂直ベッド1の前面には、Xスライド
4がX軸方向(水平方向)に移動可能に支持されてお
り、そのXスライド4にはYスライド5がY軸方向(垂
直方向)に移動可能に支持され、さらに上記Yスライド
5には水平主軸6を回転自在に軸承するラムを構成する
Zスライド7がZ軸方向(前後方向)に移動可能に支持
されている。しかして、上記垂直ベッド1に対してXス
ライド4、Y軸スライド5及びZスライド7をそれぞれ
X軸方向、Y軸方向或はZ軸方向に移動させることによ
り、主軸6を前記テーブル3上に載置固定された被加工
物に対して互いに直交する3軸方向に移動位置決めする
ことができる。
On the front surface of the vertical bed 1, an X slide 4 is supported so as to be movable in the X axis direction (horizontal direction), and the Y slide 5 is mounted on the X slide 4 in the Y axis direction (vertical direction). A Z slide 7 which is movably supported and which constitutes a ram that rotatably supports a horizontal main shaft 6 is movably supported on the Y slide 5 in the Z axis direction (front-back direction). Then, by moving the X slide 4, the Y-axis slide 5 and the Z-slide 7 with respect to the vertical bed 1 in the X-axis direction, the Y-axis direction or the Z-axis direction, the main shaft 6 is placed on the table 3. It is possible to move and position the work piece mounted and fixed in three axial directions orthogonal to each other.

【0013】ところで、上記Xスライド4、Yスライド
5及びZスライド7はそれぞれ互いに平行に配設された
2本のリニアモータによって軸送り駆動が行われるよう
にしてある。
By the way, the X slide 4, Y slide 5 and Z slide 7 are designed to be axially driven by two linear motors arranged in parallel with each other.

【0014】上記リニアモータは積層鋼板よりなる2枚
の平板であって、表面に長手方向に直交する方向に同一
ピッチで等間隔に全長にわたって形成された断面コ字状
の磁極歯が形成され、ストローク長にわたって敷設され
た長尺平板状の固定子と、その固定子の磁極歯に対向し
て配置され、表面に長手方向に直交する方向に同一ピッ
チで等間隔に全長にわたって永久磁石及びコイルを配置
した短尺平板状の移動子より構成され、移動子と固定子
とは所定の間隙(0.05〜0.2mm)を有して各駆
動部に配設されている。
The linear motor is two flat plates made of laminated steel plates, on the surface of which magnetic pole teeth having a U-shaped cross section formed at equal intervals in the direction orthogonal to the longitudinal direction and over the entire length are formed. A long flat plate-shaped stator laid over the stroke length and a magnetic pole tooth of the stator are arranged so as to face each other, and a permanent magnet and a coil are arranged on the surface at equal intervals in the direction orthogonal to the longitudinal direction over the entire length at equal intervals. It is composed of arranged short flat plate-shaped moving elements, and the moving elements and the stator are arranged in each drive unit with a predetermined gap (0.05 to 0.2 mm).

【0015】上記垂直ベッド1は、図3及び図4に示す
ように、正面視中央に貫通穴1aを有する横長の矩形枠
状をしており、下部前面側に水平ベッド2(図示せず)
が連結されている。上記垂直ベッド1の正面側には上記
貫通穴1aを挟んで上下位置に、X軸方向に延びる2本
のレールR1a,R1bが敷設されており、そのレールR1a
の上方及びレールR 1bの下方にはXスライド4駆動用のリニアモータ固定子L 1a ,L 1aがそれぞれ上記各レールR 1a ,R 1bと平行に配設されている。 Linear motor stators L 1a and L 1a for driving the X slide 4 are arranged in parallel with the rails R 1a and R 1b , respectively, above and below the rail R 1b . As shown in FIGS. 3 and 4, the vertical bed 1 has a horizontally long rectangular frame shape having a through hole 1a in the center in a front view, and a horizontal bed 2 (not shown) on the lower front side. As shown in FIGS. 3 and 4, the vertical bed 1 has a horizontally long rectangular frame shape having a through hole 1a in the center in a front view, and a horizontal bed 2 (not shown) on the lower front side.
Are connected. On the front side of the vertical bed 1, two rails R 1a and R 1b extending in the X-axis direction are laid at upper and lower positions with the through hole 1a interposed therebetween, and the rail R 1a. Are connected. On the front side of the vertical bed 1, two rails R 1a and R 1b extending in the X-axis direction are laid at upper and lower positions with the through hole 1a involved, and the rail R 1a.
Above and above the rail R 1b , linear motor stators L 1a and L 1a for driving the X slide 4 are arranged in parallel with the rails R 1a and R 1b , respectively. Above and above the rail R 1b , linear motor stators L 1a and L 1a for driving the X slide 4 are arranged in parallel with the rails R 1a and R 1b , respectively.

【0016】一方、Xスライド4は、図5及び図6に示
すように、アルミ合金等の軽合金から形成され、正面視
中央に貫通穴4aを有する縦長の矩形枠状をしている。
すなわち、Xスライド4は左右の断面四角形の垂直コラ
ム部4b,4bの上、下両端部をそれぞれ横桁部4c,
4cで互いに連結した構造としてある。上記両横桁部4
c,4cの背面には前記垂直ベッド1に敷設されたX軸方向に延びる上下のレールR 1a ,R 1bにそれぞれ係合する複数のガイドG 1a ,G 1bが装着されており、上記上下のガイドG 1a ,G 1bが上記垂直ベッド1に敷設されている上下のレールR 1a ,R 1bにそれぞれ係合され、Xスライド4が垂直ベッド1に対して上記レールR 1a ,R 1bに沿ってX軸方向に摺動可能に支持されている。 On the back surface of c and 4c, a plurality of guides G 1a and G 1b that engage with the upper and lower rails R 1a and R 1b laid on the vertical bed 1 in the X-axis direction are mounted, respectively. The guides G 1a and G 1b are engaged with the upper and lower rails R 1a and R 1b laid on the vertical bed 1, respectively, and the X slide 4 is attached to the vertical bed 1 along the rails R 1a and R 1 b. It is slidably supported in the X-axis direction. On the other hand, as shown in FIGS. 5 and 6, the X slide 4 is formed of a light alloy such as an aluminum alloy and has a vertically long rectangular frame shape having a through hole 4a at the center in a front view. On the other hand, as shown in FIGS. 5 and 6, the X slide 4 is formed of a light alloy such as an aluminum alloy and has a vertically long rectangular frame shape having a through hole 4a at the center in a front view.
That is, the X-slide 4 has vertical cross-sections 4b, 4b having right and left quadrangular cross-sections, and upper and lower end portions of the vertical column parts 4c, 4b, respectively. That is, the X-slide 4 has vertical cross-sections 4b, 4b having right and left quadrangular cross-sections, and upper and lower end sections of the vertical column parts 4c, 4b, respectively.
4c is connected to each other. Both transverse girders 4 above 4c is connected to each other. Both transverse girders 4 above
A plurality of guides G 1a and G 1b , which engage with upper and lower rails R 1a and R 1b extending in the X-axis direction, which are laid on the vertical bed 1, are mounted on the back surfaces of the c and 4c, respectively. The guides G 1a and G 1b are engaged with the upper and lower rails R 1a and R 1b laid on the vertical bed 1, respectively, and the X slide 4 is attached to the vertical bed 1 along the rails R 1a and R 1b. It is slidably supported in the X-axis direction. A plurality of guides G 1a and G 1b , which engage with upper and lower rails R 1a and R 1b extending in the X-axis direction, which are laid on the vertical bed 1, are mounted on the back surfaces of the c and 4c The guides G 1a and G 1b are engaged with the upper and lower rails R 1a and R 1b laid on the vertical bed 1, respectively, and the X slide 4 is attached to the vertical bed 1 along the rails R 1a and R 1b. It is slidably supported in the X-axis direction.

【0017】また、上記Xスライド4の両横桁部4c,
4cの背面には、上記ガイドG1aの上方及びガイドG1b
の下方にそれぞれ上記各ガイドG1a,G1bに隣接してX
軸方向に延びるリニアモータ移動子L1b,L1bが装着さ
れ、垂直ベッド1に装着されているリニアモータ固定子
1a,L1aに対向配置されている。
Both lateral girder portions 4c of the X slide 4 are
On the back surface of 4c, above the guide G 1a and the guide G 1b.
Below each of the guides G 1a , G 1b and adjacent to each other by X.
The linear motor movers L 1b and L 1b extending in the axial direction are mounted, and are arranged to face the linear motor stators L 1a and L 1a mounted on the vertical bed 1. The linear motor movers L 1b and L 1b extending in the axial direction are mounted, and are arranged to face the linear motor stators L 1a and L 1a mounted on the vertical bed 1.

【0018】上記リニアモータ移動子L1b,L1bとXス
ライド4のモータ装着面との間には、リニアモータ固定
子L1aとリニアモータ移動子L1b間の間隙調整用のライ
ナ8が介装され、そのライナ8の内部には格子状に冷却
油流路が穿設され、図示しない管路により冷却油源に連
通されている。
A liner 8 for adjusting the gap between the linear motor stator L 1a and the linear motor mover L 1b is interposed between the linear motor movers L 1b and L 1b and the motor mounting surface of the X slide 4. Inside the liner 8, cooling oil flow passages are formed in a grid pattern and communicated with a cooling oil source by a pipe line (not shown).

【0019】また、Xスライド4の前面側には左右の垂
直コラム部4b,4bの前面に垂直方向(Y軸方向)に
延びるレールR2 ,R2 がそれぞれ敷設されており、さ
らに上記垂直コラム部4b,4bの互いに背向する各外
側面にはY軸方向に延びるYスライド駆動用のリニアモ
ータ固定子L2a,L2aが設けられている。
Rails R 2 and R 2 extending in the vertical direction (Y-axis direction) are laid on the front surfaces of the left and right vertical column portions 4b and 4b on the front surface side of the X-slide 4, respectively. Linear motor stators L 2a and L 2a for driving the Y slide extending in the Y-axis direction are provided on the respective outer side surfaces of the portions 4b and 4b which face each other.

【0020】また、図7は上記Xスライド4に取り付け
られるYスライド5の正面斜視図、図8はそのYスライ
ド5の背面下方斜視図であって、正面視中央に円形の貫
通穴5a1を設けた横長の矩形状の前面板部5aと、その
前面板部5aと一体に形成されその背面中央より後方に
突出した下方に開口する断面コ字状の箱枠部5bとによ
ってYスライド5の本体部5cが形成されている。
FIG. 7 is a front perspective view of the Y slide 5 attached to the X slide 4, and FIG. 8 is a rear lower perspective view of the Y slide 5, showing a circular through hole 5a1 in the center of the front view. The Y-slide 5 of the Y-slide 5 is formed by the horizontally long rectangular front plate portion 5a and the box frame portion 5b formed integrally with the front plate portion 5a and projecting rearward from the center of the rear surface and having a U-shaped cross section that opens downward. A body portion 5c is formed.

【0021】上記Yスライドの本体部5cの前部両側に
はそれぞれ断面L字状のモータ取付板5d,5dが装着
されている。すなわち、上記Yスライド本体部5cの前
面板部5aの背面に上記断面L字状のモータ取付板5d
の一辺が固着され、そのモータ取付板5dの他片が前記箱枠部5bの側面に固着され、上記前面板部5a、箱枠部5bの側面及び断面L字状のモータ取付板5dによって垂直方向に貫通する断面四角形の枠部5eが形成されている。 One side is fixed, and the other piece of the motor mounting plate 5d is fixed to the side surface of the box frame portion 5b, and is vertical by the front plate portion 5a, the side surface of the box frame portion 5b, and the motor mounting plate 5d having an L-shaped cross section. A frame portion 5e having a quadrangular cross section penetrating in the direction is formed. Motor mounting plates 5d, 5d having an L-shaped cross section are mounted on both sides of the front portion of the body portion 5c of the Y slide. That is, the motor mounting plate 5d having the L-shaped cross section is formed on the back surface of the front plate portion 5a of the Y slide body portion 5c. Motor mounting plates 5d, 5d having an L-shaped cross section are mounted on both sides of the front portion of the body portion 5c of the Y slide. That is, the motor mounting plates 5d having the L-shaped cross section is formed on the back surface of the front plate portion 5a of the Y slide body portion 5c.
One side is fixed, and the other piece of the motor mounting plate 5d is fixed to the side surface of the box frame portion 5b. The front plate portion 5a, the side surface of the box frame portion 5b and the motor mounting plate 5d having an L-shaped cross section are vertically attached. A frame portion 5e having a quadrangular cross section is formed so as to penetrate in the direction. One side is fixed, and the other piece of the motor mounting plate 5d is fixed to the side surface of the box frame portion 5b. The front plate portion 5a, the side surface of the box frame portion 5b and the motor mounting plate 5d having an L-shaped cross section are vertically attached. A frame portion 5e having a quadrangular cross section is formed so as to penetrate in the direction.

【0022】上記前面板部5aの背面には箱枠部5bの両側面と隣接した位置にそれぞれY軸方向に複数のガイドG 2 ,G 2が装着されている。 On the back surface of the front plate portion 5a, a plurality of guides G 2 and G 2 are mounted in the Y-axis direction at positions adjacent to both side surfaces of the box frame portion 5b.

【0023】しかして、Yスライド5の断面四角形の枠
部5eが前記Xスライド4の垂直コラム部4bを囲繞す
るように遊嵌され(図9)、ガイドG2 ,G2 がXスラ
イド4の垂直コラム部4bの前面に敷設されているレー
ルR2 ,R2 にそれぞれ係合され、Yスライド5がXス
ライド4に対してY軸方向に摺動可能に支持されてい
る。この場合前面板部5aの背面側に突出するコ字状の
箱枠部5bは、垂直ベッド1及びXスライド4の各貫通
穴1a,4aを挿通して先端部が垂直ベッド1内に突入
されており、Xスライド4及びYスライド5の移動に伴
って、上記箱枠部5bが移動範囲にわたって垂直ベッド
1及びXスライド4に干渉することはない。
Then, the frame portion 5e having a quadrangular cross section of the Y slide 5 is loosely fitted so as to surround the vertical column portion 4b of the X slide 4 (FIG. 9), and the guides G 2 and G 2 are attached to the X slide 4. The Y slide 5 is supported by the rails R 2 and R 2 laid on the front surface of the vertical column portion 4 b so as to be slidable in the Y axis direction with respect to the X slide 4. In this case, the U-shaped box frame portion 5b projecting to the back side of the front plate portion 5a is inserted into the through holes 1a and 4a of the vertical bed 1 and the X slide 4, and the tip end thereof is projected into the vertical bed 1. Therefore, the box frame portion 5b does not interfere with the vertical bed 1 and the X slide 4 over the movement range as the X slide 4 and the Y slide 5 move.

【0024】また、上記各モータ取付板5dの内面に
は、Xスライド4の両垂直コラム部4bに設けられてい
る各リニアモータ固定子L2aとそれぞれ対向しそのリニ
アモータ固定子L2aと所定の間隙を維持するようにリニ
アモータ移動子L2bが固着されている。そして、上記モ
ータ取付板内部には格子状に冷却油流路が穿設され、図
示しない管路により冷却油源に連通されている。
On the inner surface of each motor mounting plate 5d, the linear motor stators L 2a provided on both vertical column portions 4b of the X slide 4 are opposed to the linear motor stators L 2a , respectively. The linear motor mover L 2b is fixed so as to maintain the gap. Cooling oil passages are formed in a grid pattern inside the motor mounting plate, and are connected to a cooling oil source by a pipe line (not shown).

【0025】Yスライド5の箱枠部5bの互いに対向す
る側壁部内面には、図8に示すように、左右対称に箱部
5f,5fが形成されており、その箱部5f,5fの下
面にはそれぞれZ軸方向に延びるレールR3 ,R3 が敷
設されており、また上記箱部5f,5fの対向内側面に
はZスライド駆動用リニアモータ固定子L3a,L3aがそ
れぞれ配設固定されている。また、上記箱枠部5bの天
板部にはリニアモータによって箱枠部5b内で発生する
熱を除去するための複数の通気孔5gが穿設されてお
り、必要に応じてファンを設けることにより上記リニア
モータ部の冷却効果を増加し得るようにしてある。
As shown in FIG. 8, box portions 5f and 5f are formed symmetrically on the inner surfaces of the side wall portions of the box frame portion 5b of the Y slide 5, which are opposed to each other, and the bottom surfaces of the box portions 5f and 5f are formed. Rails R 3 and R 3 extending in the Z-axis direction are laid respectively, and Z slide drive linear motor stators L 3a and L 3a are provided on the inner surfaces of the boxes 5f and 5f facing each other. It is fixed. Further, a plurality of ventilation holes 5g for removing heat generated in the box frame portion 5b by a linear motor are formed in the top plate portion of the box frame portion 5b, and a fan is provided if necessary. Thus, the cooling effect of the linear motor section can be increased.

【0026】Yスライド5の左右両モータ取付板5dに
は、リニアモータ移動子L2bが取付けられている面の背
面側すなわち外面側に、上記リニアモータ移動子L2b
対応する位置にそれぞれブラケット9が設けられてお
り、そのブラケット9にY軸方向のカウンタバランス用
シリンダ10のピストンロッド10aの先端が枢着さ
れ、一方上記カウンタバランス用シリンダ10のシリン
ダ本体10bがXスライド4の下部側面にブラケット1
1を介して枢着され(図10参照)、各シリンダ本体1
0bは図示しない管路によエア源に連通されている。 0b is communicated with the air source by a pipeline (not shown). [0026] The right and left motor mounting plate 5d of the Y slide 5, on the rear side or outer surface side of the surface where the linear motor moving element L 2b is attached, respectively at positions corresponding to the linear motor moving element L 2b bracket 9 is provided, and the tip of the piston rod 10a of the counterbalance cylinder 10 in the Y-axis direction is pivotally attached to the bracket 9, while the cylinder body 10b of the counterbalance cylinder 10 is attached to the lower side surface of the X slide 4. Bracket 1 [0026] The right and left motor mounting plate 5d of the Y slide 5, on the rear side or outer surface side of the surface where the linear motor moving element L 2b is attached, respectively at positions corresponding to the linear motor moving element L 2b bracket 9 is provided, and the tip of the piston rod 10a of the counterbalance cylinder 10 in the Y-axis direction is pivotally attached to the bracket 9, while the cylinder body 10b of the counterbalance cylinder 10 is attached to the lower side surface of the X slide 4. Bracket 1
1 (see FIG. 10), and each cylinder body 1 1 (see FIG. 10), and each cylinder body 1
0b is connected to the air source by a conduit (not shown). 0b is connected to the air source by a conduit (not shown).

【0027】図11は水平主軸6を回転自在に軸承した
ラムを構成するZスライド7の側面斜視図であり、Zス
ライド7はアルミ合金等の軽合金からなる円筒形状のZ
スライド本体7aを有しており、Zスライド本体7aの
外面にはクロムメッキのコーティングが施された保護筒
が外嵌されている。上記Zスライド本体7aの後部に
は、その両側面にそれぞれ軸方向に離間した複数個ずつ
のガイド取付部7bがZスライドの軸芯を含む面に対し
て左右対称に突出形成されており、そのガイド取付部7
b上にZ軸方向のガイドG 3が固着されている。 A guide G 3 in the Z-axis direction is fixed on b. FIG. 11 is a side perspective view of a Z slide 7 which constitutes a ram that rotatably supports a horizontal main shaft 6. The Z slide 7 is a cylindrical Z made of a light alloy such as an aluminum alloy. FIG. 11 is a side perspective view of a Z slide 7 which constitutes a ram that rotatably supports a horizontal main shaft 6. The Z slide 7 is a cylindrical Z made of a light alloy such as an aluminum alloy.
It has a slide body 7a, and a Z-slide body 7a has a chrome-plated protective cylinder fitted on the outer surface thereof. On the rear portion of the Z slide body 7a, a plurality of guide mounting portions 7b, which are axially separated from each other, are formed on both sides of the Z slide body 7a so as to project symmetrically with respect to the surface including the axis of the Z slide. Guide mounting part 7 It has a slide body 7a, and a Z-slide body 7a has a chrome-plated protective cylinder fitted on the outer surface thereof. On the rear portion of the Z slide body 7a, a plurality of guide mounting portions 7b, which are axially Separate from each other, are formed on both sides of the Z slide body 7a so as to project symmetrically with respect to the surface including the axis of the Z slide. Guide mounting part 7
The guide G 3 in the Z-axis direction is fixed on b. The guide G 3 in the Z-axis direction is fixed on b.

【0028】さらに上記Zスライド本体7aの後部上面
には、垂直方向に直立する矩形状箱部7cが一体的に突
出形成されており、その箱部7cの両側面に、前記Yス
ライド5のZスライド駆動用リニアモータ固定子L3a
3aと所定の間隙を維持して対向するようにリニアモー
タ移動子L3b,L3bが間隙調整用ライナ12を介して固
着されている。上記ライナ12の内部には格子状に冷却
油流路が穿設されており、図示しない管路により冷却油
源に連通されている。さらに、上記Zスライド本体7a
の前端部には、先端に工具Tを着脱自在に装着する水平主軸6が複数の軸受けにより回転自在に軸支され、同軸上に設けられた図示しないモータによって回転駆動されるようにしてある。 A horizontal spindle 6 to which a tool T is detachably attached to the tip thereof is rotatably supported by a plurality of bearings at the front end portion of the above, and is rotationally driven by a motor (not shown) provided coaxially. Further, a rectangular box portion 7c which stands upright in the vertical direction is integrally projectingly formed on the upper surface of the rear portion of the Z slide body 7a, and the Z slide of the Y slide 5 is formed on both side surfaces of the box portion 7c. Linear motor stator L 3a for slide drive, Further, a rectangular box portion 7c which stands upright in the vertical direction is therefore projectingly formed on the upper surface of the rear portion of the Z slide body 7a, and the Z slide of the Y slide 5 is formed on both side surfaces of the box portion 7c. Linear motor rectangle L 3a for slide drive,
Linear motor movers L 3b and L 3b are fixed via a gap adjusting liner 12 so as to face L 3a while maintaining a predetermined gap. Cooling oil passages are formed in a grid pattern inside the liner 12, and are connected to a cooling oil source by a pipe line (not shown). Further, the Z slide body 7a Linear motor movers L 3b and L 3b are fixed via a gap adjusting liner 12 so as to face L 3a while maintaining a predetermined gap. Cooling oil passages are formed in a grid pattern inside the liner 12, and are connected to a cooling oil source by a pipe line (not shown). Further, the Z slide body 7a
At the front end portion, a horizontal main shaft 6 to which a tool T is detachably attached at the tip is rotatably supported by a plurality of bearings, and is rotationally driven by a motor (not shown) provided coaxially. At the front end portion, a horizontal main shaft 6 to which a tool T is detachably attached at the tip is rotatably supported by a plurality of bearings, and is rotationally driven by a motor (not shown) provided coaxially.

【0029】ところで、図12に示すように、Zスライド7の先端はYスライド5の前面板部5aに形成された円形貫通穴5 a1に挿通され、工具Tを装着した主軸6がYスライド5の前方の加工領域に突出するようにしてあり、また、各ガイドG 3がそれぞれYスライド5の箱枠部5b内に敷設されたレールR 3 ,R 3に係合され、Z
スライド7がYスライド5に対してZ軸方向に摺動可能に支持されるとともに、Zスライド駆動用リニアモータ移動子L 3bがYスライド5に設けられた対応するリニアモータ固定子L 3aに所定の間隙をもって対向せしめられている。 The slide 7 is slidably supported in the Z-axis direction with respect to the Y slide 5, and the linear motor mover L 3b for driving the Z slide is designated by the corresponding linear motor stator L 3a provided on the Y slide 5. They are opposed to each other with a gap between them. By the way, as shown in FIG. 12, the tip end of the Z slide 7 is inserted into the circular through hole 5a1 formed in the front plate portion 5a of the Y slide 5, and the spindle 6 having the tool T mounted thereon is moved to the Y slide 5a. Of the Y slide 5, the guides G 3 are engaged with rails R 3 and R 3 laid in the box frame portion 5b of the Y slide 5, respectively, and Z By the way, as shown in FIG. 12, the tip end of the Z slide 7 is inserted into the circular through hole 5a1 formed in the front plate portion 5a of the Y slide 5, and the spindle 6 having the tool T mounted therein is moved to the Y slide 5a. Of the Y slide 5, the guides G 3 are engaged with rails R 3 and R 3 laid in the box frame portion 5b of the Y slide 5, respectively, and Z
The slide 7 is supported so as to be slidable in the Z-axis direction with respect to the Y slide 5, and the Z slide driving linear motor mover L 3b is fixed to the corresponding linear motor stator L 3a provided on the Y slide 5. They are facing each other with a gap of. The slide 7 is supported so as to be slidable in the Z-axis direction with respect to the Y slide 5, and the Z slide driving linear motor mover L 3b is fixed to the corresponding linear motor stator L 3a provided on the Y slide 5 . They are facing each other with a gap of.

【0030】また、Yスライドの貫通穴5a1の前面内周
縁部にはZスライド7先端の円筒状外周部を外嵌する環
状シールが配設され、Yスライド5内への切粉の侵入が
防止されている。なお、上記シールに替えて、貫通穴内
周よりエアを常時噴出させてもよい。
Further, an annular seal for externally fitting the cylindrical outer peripheral portion of the tip of the Z slide 7 is arranged on the inner peripheral edge portion of the front surface of the through hole 5a1 of the Y slide, so that the intrusion of cutting chips into the Y slide 5 can be prevented. It is prevented. Instead of the above seal, air may be constantly ejected from the inner circumference of the through hole.

【0031】上記各スライドにはリニアモータに平行し
て位置検出用リニアスケールが設けられ、各リニアモー
タ移動子とともに各位置検出用リニアスケールはケーブ
ルによってNC装置に接続されている。上記NC装置は
上記リニアスケールの位置検出信号に基づいて各軸リニ
アモータ移動子に供給する電流を制御することによって
軸駆動を行う。
A linear scale for position detection is provided in parallel with the linear motor on each slide, and each linear scale for position detection is connected to the NC device by a cable together with each linear motor mover. The NC device drives an axis by controlling the current supplied to each axis linear motor mover based on the position detection signal of the linear scale.

【0032】次に、上述のように構成された工作機械の作用について説明する。 Next, the operation of the machine tool configured as described above will be described.

【0033】Xスライド4の背面に固着された上下のリニアモータ移動子L 1b ,L 1bに電流が供給されると、そのリニアモータ移動子L 1b ,L 1bに対向して垂直ベッド1の前面に固着されているリニアモータ固定子L 1a ,L
1aとの間に長手方向の推力が発生され、垂直ベッド1に敷設されたレールR 1a ,R 1bに沿ってXスライド4がX

軸方向に駆動される。 Driven in the axial direction. When a current is supplied to the upper and lower linear motor movers L 1b and L 1b fixed to the back surface of the X slide 4, the front surface of the vertical bed 1 is opposed to the linear motor movers L 1b and L 1b. Linear motor stators L 1a , L fixed to the When a current is supplied to the upper and lower linear motor movers L 1b and L 1b fixed to the back surface of the X slide 4, the front surface of the vertical bed 1 is opposed to the linear motor movers L 1b and L 1b. Linear motor stators L 1a , L fixed to the
Is generated in the longitudinal direction of the thrust between the 1a, rail R 1a laid on a vertical bed 1, X slide 4 along the R 1b is X Is generated in the longitudinal direction of the thrust between the 1a, rail R 1a laid on a vertical bed 1, X slide 4 along the R 1b is X
Driven in the axial direction. Driven in the axial direction.

【0034】また、モータ取付板5d,5dに固着され
たリニアモータ移動子L2b,L2bに電流が供給される
と、上記移動子L2b,L2bに対向してXスライド4の垂
直コラム部4b,4bの外側面に固着されているリニア
モータ固定子L2a,L2aとの間に長手方向の推力が発生
され、Xスライド4の前面に敷設されたレールR2 ,R
2に沿ってYスライド5がY軸方向に駆動される。 The Y slide 5 is driven in the Y-axis direction along 2 . When current is supplied to the linear motor movers L 2b and L 2b fixed to the motor mounting plates 5d and 5d, the vertical column of the X slide 4 is opposed to the movers L 2b and L 2b. The thrust in the longitudinal direction is generated between the linear motor stators L 2a and L 2a fixed to the outer surfaces of the portions 4b and 4b, and the rails R 2 and R laid on the front surface of the X-slide 4 are generated. When current is supplied to the linear motor movers L 2b and L 2b fixed to the motor mounting plates 5d and 5d, the vertical column of the X slide 4 is opposed to the movers L 2b and L 2b. The thrust in the longitudinal direction is generated between the linear motor stators L 2a and L 2a fixed to the outer surfaces of the portions 4b and 4b, and the rails R 2 and R laid on the front surface of the X-slide 4 are generated.
The Y slide 5 is driven in the Y-axis direction along the line 2 . The Y slide 5 is driven in the Y-axis direction along the line 2 .

【0035】また、上記Yスライド5のL形のモータ取付板5d,5dとXスライド4にブラケット9,11を介して枢着されたカウンタバランス用シリンダ10,1
0のボアには一定圧のエアが供給されており、シリンダロッド10a、ブラケット9を介してYスライド5をY A constant pressure of air is supplied to the 0 bore, and the Y slide 5 is driven through the cylinder rod 10a and the bracket 9.
軸方向上方に常時押し上げ、Yスライド5に作用する重力を相殺するよう作用する。 It is constantly pushed upward in the axial direction and acts to cancel the gravity acting on the Y slide 5. これによって、Yスライド上昇駆動時においてはリニアモータ固定子L 2aと移動子L 2bとからなるリニアモータL 2に過大な推力を必要とせずモータを小型化することができ、また移動停止時においては常時多量の電流を供給する必要が無いためにモータ発熱を低減でき、さらにはリニアモータL 2への電力供給が停止した場合においてもYスライド5が落下することがない。 As a result, the motor can be miniaturized without requiring an excessive thrust for the linear motor L 2 composed of the linear motor stator L 2a and the mover L 2b when the Y slide is driven up, and when the movement is stopped. Since it is not necessary to constantly supply a large amount of current, the motor heat generation can be reduced, and the Y slide 5 does not fall even when the power supply to the linear motor L 2 is stopped. Further, counterbalance cylinders 10 and 1 pivotally attached to the L-shaped motor mounting plates 5d and 5d of the Y slide 5 and the X slide 4 via brackets 9 and 11, respectively. Further, counterbalance cylinders 10 and 1 pivotally attached to the L-shaped motor mounting plates 5d and 5d of the Y slide 5 and the X slide 4 via brackets 9 and 11, respectively.
Air of a constant pressure is supplied to the bore of 0, and the Y slide 5 is moved to Y through the cylinder rod 10a and the bracket 9. Air of a constant pressure is supplied to the bore of 0, and the Y slide 5 is moved to Y through the cylinder rod 10a and the bracket 9.
It always pushes upward in the axial direction, and acts to cancel the gravity acting on the Y slide 5. This makes it possible to reduce the size of the motor without requiring excessive thrust to the linear motor L 2 including the linear motor stator L 2a and the mover L 2b during the Y slide raising drive, and when the movement is stopped. Since it is not necessary to constantly supply a large amount of current, heat generation of the motor can be reduced, and further, even when the power supply to the linear motor L 2 is stopped, the Y slide 5 does not drop. It always pushes upward in the axial direction, and acts to cancel the gravity acting on the Y slide 5. This makes it possible to reduce the size of the motor without requiring excessive thrust to the linear motor L 2 including the linear motor stator L 2a and the mover L 2b during the Y slide raising drive, and when the movement is stopped. Since it is not necessary to constantly supply a large amount of current, heat generation of the motor can be reduced, and further, even when the power supply to the linear motor L 2 is stopped, the Y slide 5 does not drop.

【0036】しかもリニアモータL2 の取付背面にカウ
ンタバランス用シリンダ10がそれぞれ装着してあるた
め、モータ駆動位置と重力支持位置とが一致しており、
Yスライド5に偶力が作用することはない。また、Yス
ライド5をY軸方向に駆動するためのモータ取付板5
d,5dがYスライド前方の矩形状の前面板部5aとY
スライド中央の箱部側面とに渡して固着してあるため、
Yスライド5の重心位置に近い位置に駆動力が作用し、
駆動時にYスライド5に作用する偶力を低減することができ、ひいては起動停止時に生ずる振動が最小限に抑えられる。 The couple acting on the Y slide 5 during driving can be reduced, and the vibration generated at the time of starting and stopping can be minimized. Moreover, since the counterbalance cylinders 10 are mounted on the rear surface of the linear motor L 2 respectively, the motor drive position and the gravity support position match. Moreover, since the counterbalance cylinders 10 are mounted on the rear surface of the linear motor L 2 respectively, the motor drive position and the gravity support position match.
No couple force acts on the Y slide 5. Also, a motor mounting plate 5 for driving the Y slide 5 in the Y axis direction. No couple force acts on the Y slide 5. Also, a motor mounting plate 5 for driving the Y slide 5 in the Y axis direction.
d and 5d are the Y-shaped front plate portion 5a in the front of the Y slide and Y d and 5d are the Y-shaped front plate portion 5a in the front of the Y slide and Y
Since it is fixed to the side of the box in the center of the slide, Since it is fixed to the side of the box in the center of the slide,
The driving force acts on a position close to the center of gravity of the Y slide 5, The driving force acts on a position close to the center of gravity of the Y slide 5,
The couple acting on the Y slide 5 at the time of driving can be reduced, and the vibration generated at the time of starting and stopping can be minimized. The couple acting on the Y slide 5 at the time of driving can be reduced, and the vibration generated at the time of starting and stopping can be minimized.

【0037】また、Zスライド本体上部の矩形状箱部7
cの両側面に固着されたリニアモータ移動子L3b,L3b
に電流が供給されると、その移動子に対向して配置され
たYスライド内のリニアモータ固定子L3aに対して長手
方向に推力を発生し、Zスライド7がYスライド内の箱
部5f,5fに敷設されたレールR3 ,R3 にならって
Z軸方向に駆動される。
Further, the rectangular box portion 7 on the upper part of the Z slide main body
Linear motor movers L 3b and L 3b fixed to both side surfaces of c
When an electric current is supplied to the linear motor stator L 3a in the Y slide arranged to face the moving element, a thrust force is generated in the longitudinal direction, and the Z slide 7 causes the box portion 5f in the Y slide. , 5f are driven in the Z-axis direction following the rails R 3 and R 3 laid on them. When an electric current is supplied to the linear motor tetrahydrofuran L 3a in the Y slide arranged to face the moving element, a thrust force is generated in the longitudinal direction, and the Z slide 7 causes the box portion 5f in the Y slide., 5f are driven in the Z-axis direction following the rails R 3 and R 3 laid on them.

【0038】上記Zスライド7の駆動にあたっては、上
記リニアモータ移動子L3b,L3bと固定子L3a,L3a
の間には長手方向の推力とともに、その推力の数倍にお
よび吸引力が同時に作用し、Yスライド5のコ字形箱枠
部5bの下方開口部を閉口する方向に変形作用させる
が、リニアモータ移動子の長さに合わせたガイドG3
配置および取付間隔とすることでYスライドの箱枠部5
bの変形を最小にすることができる。 The deformation of b can be minimized. When the Z slide 7 is driven, a thrust force in the longitudinal direction is generated between the linear motor movers L 3b and L 3b and the stators L 3a and L 3a, and several times that thrust force and a suction force are applied. Simultaneously act to deform the lower opening of the U-shaped box frame portion 5b of the Y slide 5 in a direction to close it, but the guide G 3 should be arranged and attached at intervals according to the length of the linear motor mover. And the box frame part of Y slide 5 When the Z slide 7 is driven, a thrust force in the longitudinal direction is generated between the linear motor movers L 3b and L 3b and the stators L 3a and L 3a, and several times that thrust force and a suction force are applied. Simultaneously act to deform the lower opening of the U-shaped box frame portion 5b of the Y slide 5 in a direction to close it, but the guide G 3 should be arranged and attached at intervals according to the length of the linear motor mover. And the box frame part of Y slide 5
The deformation of b can be minimized. The deformation of b can be minimized.

【0039】また、Zスライド7は、後方上部に矩形状箱部7cを設け、該箱部にリニアモータ移動子L 3b ,L
3bを取り付けることによって、Yスライド5の矩形状の前面板部5aの中央に設けられた貫通穴5 a1から加工領域に突出するZスライド先端部を円筒形にして外径を小さくすることができ、ひいては被加工物への接近性を向上することができる。 By attaching 3b , the tip of the Z slide protruding from the through hole 5 a1 provided in the center of the rectangular front plate 5 a of the Y slide 5 into the machining area can be made cylindrical to reduce the outer diameter. As a result, the accessibility to the work piece can be improved. また、円筒形であるため上部に切粉が堆積しにくく、シールも容易であるので、加工領域と機械領域とに隔離するカバーをYスライド前面に設けることにより切粉や切削油の機械領域への侵入を防止することができる。 In addition, since it is cylindrical, chips are less likely to accumulate on the upper part and sealing is easy. Therefore, by providing a cover on the front surface of the Y slide that separates the processing area and the machine area, it is possible to move to the machine area of ​​chips and cutting oil. Can be prevented from invading. さらに、万一切削油や切粉が侵入したとしてもYスライドのリニアモータは上部に配置されているためモータ内部への侵入を防ぐことができる。 Further, even if cutting oil or chips intrude, the Y-slide linear motor is arranged at the upper part, so that it can be prevented from invading the inside of the motor. Further, the Z slide 7 is provided with a rectangular box portion 7c at the upper rear portion, and the linear motor movers L 3b and L 3 are provided in the box portion. Further, the Z slide 7 is provided with a rectangular box portion 7c at the upper rear portion, and the linear motor movers L 3b and L 3 are provided in the box portion.
By attaching 3b , it is possible to make the outer diameter of the Y slide 5 cylindrical by making the tip end of the Z slide projecting from the through hole 5a1 provided in the center of the rectangular front plate portion 5a of the Y slide 5 into the processing area. As a result, it is possible to improve the accessibility to the workpiece. Further, since it is a cylindrical shape, chips are less likely to accumulate on the upper part and sealing is easy. Can be prevented. Further, even if cutting oil or cutting chips enter, the linear motor of the Y-slide is arranged at the upper part, so that it can be prevented from entering the inside of the motor. By attaching 3b , it is possible to make the outer diameter of the Y slide 5 cylindrical by making the tip end of the Z slide projecting from the through hole 5a1 provided in the center of the rectangular front plate portion 5a of the Y slide 5 into The processing area. As a result, it is possible to improve the accessibility to the workpiece. Further, since it is a cylindrical shape, chips are less likely to accumulate on the upper part and sealing is easy. Can be prevented. Further, even if cutting oil or cutting chips enter, the linear motor of the Y-slide is arranged at the upper part, so that it can be prevented from entering the inside of the motor.

【0040】Xスライド4およびZスライド7のリニア
モータの移動子L1b,L3bとその取付面との間に介装さ
れたライナ8,12およびYスライド5のL形モータ取
付板5dに設けられた各冷却油路には、機体温度或は外
気温に同調して温度制御された冷却油を常時流すことに
よって、上記移動子L1b,L2b,L3bの発熱による各ス
ライドの熱変位を防止することができる。
Provided on the L-shaped motor mounting plate 5d of the liners 8 and 12 and the Y slide 5 which are interposed between the sliders L 1b and L 3b of the linear motors of the X slide 4 and the Z slide 7 and their mounting surfaces. By constantly flowing cooling oil whose temperature is controlled in synchronism with the machine temperature or the outside air temperature in the respective cooling oil passages, the thermal displacement of each slide due to the heat generation of the moving elements L 1b , L 2b , L 3b. Can be prevented.

【0041】上記実施例では、各軸送り駆動にそれぞれ
2本のリニアモータを並列使用して推力を確保するとと
もに、被駆動部であるZスライド、YスライドおよびX
スライドには軽量材(例えばアルミ合金)を使用してイ
ナーシャの低減をはかることによって、送り速度および
加速度を向上することができる。
In the above embodiment, two linear motors are used in parallel for each axis feed drive to secure thrust, and Z slide, Y slide and X which are driven parts.
The feed rate and acceleration can be improved by using a lightweight material (for example, aluminum alloy) for the slide to reduce the inertia.

【0042】また、上記実施例においては、リニアモー
タとしてハイブリッド型リニアパルスモータの場合につ
いて述べたが、これに限定されるものではなく、例えば
同期型リニアモータや誘導型リニアモータであってもよ
い。また、本実施例ではYスライド5が左右2本の垂直
コラム部4bに沿って摺動するものを示したが、1本の
垂直コラムに沿って摺動するようにしてもよい。さらに
本実施例においてはXスライドに垂直コラムを立設した
ものを示したが、上記コラムは固定コラムでもよく、ま
た垂直以外の場合にも適用できる。
In the above embodiment, the hybrid type linear pulse motor is used as the linear motor, but the present invention is not limited to this and may be a synchronous type linear motor or an induction type linear motor. . Further, in the present embodiment, the Y slide 5 is shown to slide along the two vertical column portions 4b on the left and right, but it may slide along one vertical column. Further, in this embodiment, the vertical column is provided upright on the X slide, but the column may be a fixed column or may be applied to a case other than vertical.

【0043】[0043]

【発明の効果】本発明は、以上説明したように、コラム
部を囲繞する枠部の内面とコラム部の側面との間にリニ
アモータを配設したので、上記枠部を構成するモータ取
付板の両辺がスライド前部と中央部とに固着されること
になり、上記リニアモータによる駆動力がコラムに沿っ
て移動されるスライドの前部のみでなく、スライドの重
心位置に近い位置に駆動力が作用し駆動時に作用する偶
力を低減することができ、起動停止時に生ずる残留振動
を最小限に抑え、ひいては加工精度を向上させる等の効
果を奏する。また、モータ取付板におけるリニアモータ
取付面の背面側にカウンタバランスシリンダを装着した
ものにおいては、モータ駆動位置と重力支持位置とが一
致して、スライドに作用する偶力がなくなり、スライド
の変形を少なくし、ひいては加工精度を向上させること
ができる。
As described above, according to the present invention, since the linear motor is arranged between the inner surface of the frame portion surrounding the column portion and the side surface of the column portion, the motor mounting plate constituting the frame portion is formed. Both sides will be fixed to the front part and the center part of the slide, and the driving force by the linear motor will not only be applied to the front part of the slide moved along the column, but also to the position close to the center of gravity of the slide. Can be reduced and the couple acting at the time of driving can be reduced, the residual vibration generated at the time of starting and stopping can be minimized, and the processing accuracy can be improved. Also, in the case where the counter balance cylinder is mounted on the rear side of the linear motor mounting surface of the motor mounting plate, the motor driving position and the gravity supporting position match, the couple acting on the slide is eliminated, and the slide deformation is prevented. It is possible to reduce the number and, consequently, improve the processing accuracy.

【図面の簡単な説明】 [Brief description of drawings]

【図1】本発明の工作機械の一実施の形態を示す正面全体の斜視図。 FIG. 1 is a perspective view of an entire front surface showing an embodiment of a machine tool of the present invention.

【図2】図1の工作機械の背面斜視図。 FIG. 2 is a rear perspective view of the machine tool of FIG.

【図3】本発明の工作機械の垂直ベッドの正面斜視図。 FIG. 3 is a front perspective view of a vertical bed of the machine tool of the present invention.

【図4】図3の垂直ベッドの背面斜視図。 4 is a rear perspective view of the vertical bed of FIG.

【図5】Xスライドの正面斜視図。 FIG. 5 is a front perspective view of the X slide.

【図6】Xスライドの背面斜視図。 FIG. 6 is a rear perspective view of the X slide.

【図7】Yスライドの正面斜視図。 FIG. 7 is a front perspective view of a Y slide.

【図8】Yスライドの背面斜視図。 FIG. 8 is a rear perspective view of the Y slide.

【図9】YスライドをXスライドに取付けた状態を示す部分断面図。 FIG. 9 is a partial cross-sectional view showing a state where the Y slide is attached to the X slide.

【図10】図9の側面図。 FIG. 10 is a side view of FIG. 9;

【図11】Zスライドの正面斜視図。 FIG. 11 is a front perspective view of a Z slide.

【図12】ZスライドをYスイラドに装着した状態を示す背面斜視図。 FIG. 12 is a rear perspective view showing a state in which the Z slide is attached to the Y sillad.

【符号の説明】[Explanation of symbols]

1 垂直ベッド 3 テーブル 4 Xスライド 4a 貫通穴 4b 垂直コラム部 4c 横桁部 5 Yスライド 5a 前面板部 5b 箱枠部 5c Yスライド本体部 5d モータ取付板 5e 枠部 6 主軸 7 Zスライド 7a Zスライド本体 7b ガイド取付部 10 カウンタバランス用シリンダ G1a,G1b,G2 ,G3 ガイド R1a,R1b,R2 ,R3 レール L1a,L2a,L3a リニアモータ固定子 L1b,L2b,L3b リニアモータ移動子1 vertical bed 3 table 4 X slide 4a through hole 4b vertical column part 4c horizontal girder part 5 Y slide 5a front plate part 5b box frame part 5c Y slide main body part 5d motor mounting plate 5e frame part 6 spindle 7 Z slide 7a Z slide Main body 7b Guide mounting part 10 Counterbalance cylinder G 1a , G 1b , G 2 , G 3 guide R 1a , R 1b , R 2 , R 3 rail L 1a , L 2a , L 3a Linear motor stator L 1b , L 2b , L 3b linear motor mover

───────────────────────────────────────────────────── フロントページの続き (71)出願人 000005326 本田技研工業株式会社 東京都港区南青山二丁目1番1号 (71)出願人 000002059 神鋼電機株式会社 東京都中央区日本橋3丁目12番2号 (71)出願人 000006013 三菱電機株式会社 東京都千代田区丸の内二丁目2番3号 (72)発明者 八 上 徹 奈良県大和郡山市北郡山町106番地 株式 会社森精機製作所内 (72)発明者 伊 東 正 頼 静岡県沼津市大岡2068の3 東芝機械株式 会社沼津事業所内 (72)発明者 遠 藤 克 仁 静岡県沼津市大岡2068の3 東芝機械株式 会社沼津事業所内 (72)発明者 藤 原 彰 彦 京都府京都市右京区太秦巽町1番地 三菱 重工業株式会社京都精機製作所内 (72)発明者 松 永 直 也 京都府京都市右京区太秦巽町1番地 三菱 重工業株式会社京都精機製作所内 (72)発明者 中 川 隆 雄 兵庫県伊丹市北伊丹8−10 大阪機工株式 会社内 (72)発明者 本 田 理 兵庫県伊丹市北伊丹8−10 大阪機工株式 会社内 (72)発明者 渡 利 潤 埼玉県狭山市新狭山1丁目10番地1 ホン ダエンジニアリング株式会社内 (72)発明者 苅 田 充 二 三重県伊勢市竹ヶ鼻町100 神鋼電機株式 会社内 (72)発明者 中 川 洋 三重県伊勢市竹ヶ鼻町100 神鋼電機株式 会社内 (72)発明者 竹 下 虎 男 東京都千代田区丸の内二丁目2番3号 三 菱電機株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (71) Applicant 000005326 Honda Motor Co., Ltd. 2-1-1 Minami-Aoyama, Minato-ku, Tokyo (71) Applicant 000002059 Shinko Electric Co., Ltd. 3--12-2, Nihonbashi, Chuo-ku, Tokyo (71) Applicant 000006013 Mitsubishi Electric Co., Ltd. 2-3-3 Marunouchi, Chiyoda-ku, Tokyo (72) Inventor Toru Yagami 106 Mt. Kita-Goriyama-cho, Yamatokoriyama-shi, Nara Mori Seiki Co., Ltd. (72) Inventor Masayori Ito 3-2068 Ooka, Numazu-shi, Shizuoka Prefecture Numazu Works, Toshiba Machine Co., Ltd. (72) Inventor Katsuhito Endo 3-2068 Ooka, Numazu City, Shizuoka Prefecture Numazu Works, Toshiba Machine Co., Ltd. (72) Inventor Fujiwara Akihiko 1 Tatsumi Uzumasa-cho, Ukyo-ku, Kyoto City, Kyoto Prefecture Mitsubishi Heavy Industries, Ltd. Kyoto Seiki Works (72) Inventor Naoya Matsunaga Right Kyoto City, Kyoto Prefecture No. 1 Uzumasa-cho, Ku Mitsubishi Heavy Industries, Ltd.Kyoto Seiki Co., Ltd. (72) Inventor Takao Nakagawa 8-10 Kita Itami, Itami City, Hyogo Prefecture In-house company of Osaka Kiko Co., Ltd. (72) Inventor Honda, Itami City, Itami City, Hyogo Prefecture 8-10 Osaka Kiko Co., Ltd. (72) Inventor Jun Tori, 1-10-1 Shin-Sayama, Sayama City, Saitama Prefecture, Honda Engineering Co., Ltd. (72) Inventor, Mitsuji Kanda 100 Takegahana-cho, Ise-shi, Mie 100 Shinko Electric Company Stock (72) Inventor Hiroshi Nakagawa 100 Takegahana Town, Ise City, Mie Prefecture Shinko Electric Co., Ltd. (72) Inventor Torao Takeshita 2-3-3 Marunouchi, Chiyoda-ku, Tokyo Sanryo Electric Co., Ltd.

Claims (5)

    【特許請求の範囲】[Claims]
  1. 【請求項1】ベッドの一面側に配設されたコラムに対し
    てそのコラムの軸線方向に移動可能に案内支持されたス
    ライドを備えた工作機械において、上記スライドにその
    スライドの本体部とともに上記コラムを囲繞する枠部を
    設け、その枠部内面とコラム側面との間にリニアモータ
    を配設したことを特徴とする工作機械。
    1. A machine tool comprising a slide, which is guided and supported so as to be movable in the axial direction of a column arranged on one side of a bed, the slide being provided with the main body of the slide. A machine tool characterized in that a frame portion surrounding the is provided, and a linear motor is arranged between the inner surface of the frame portion and the side surface of the column.
  2. 【請求項2】ベッドの一面側に互いに平行に配設された
    2つのコラムに対してそのコラムの軸線方向に移動可能
    に案内支持されたスライドとを備えた工作機械におい
    て、上記スライドにそのスライドの本体部とともに上記
    各コラムをそれぞれ囲繞する枠部を設け、上記両コラム
    の互いに背向する側面と上記枠部内面との間にリニアモ
    ータを配設したことを特徴とする工作機械。
    2. A machine tool having two slides arranged parallel to each other on one surface side of a bed, the slide being guided and supported so as to be movable in the axial direction of the columns. A machine tool characterized in that a frame portion surrounding each of the columns is provided together with the main body portion, and a linear motor is arranged between the side surfaces of the columns opposite to each other and the inner surface of the frame portion.
  3. 【請求項3】上記コラムは垂直方向に立設され、その垂
    直コラムに対してY軸方向に移動可能にYスライドが案
    内支持されており、そのYスライドに上記垂直コラムを
    囲繞する枠部が設けられ、そのYスライドに設けられた
    枠部におけるリニアモータ取付面の背面側と上記Yスラ
    イド支持部材の側面との間にカウンタバランス用シリン
    ダを配設したことを特徴とする請求項1または2記載の
    工作機械。
    3. The column is erected vertically, and a Y slide is guided and supported so as to be movable in the Y axis direction with respect to the vertical column, and a frame portion surrounding the vertical column is provided on the Y slide. 3. A counter balancing cylinder is provided between the rear surface side of the linear motor mounting surface of the frame portion provided on the Y slide and the side surface of the Y slide support member. Machine tool described.
  4. 【請求項4】上記コラムを囲繞する枠部を設けたスライ
    ドは、ベッドに対して一軸方向に移動可能に案内支持さ
    れた第2のスライドに設けられたコラムに、上記一軸に
    対して直交する方向に移動可能に案内支持されているこ
    とを特徴とする、請求項1または2記載の工作機械。
    4. A slide provided with a frame portion surrounding the column is orthogonal to the one axis with respect to a column provided on a second slide guided and supported so as to be movable in one axis direction with respect to the bed. The machine tool according to claim 1, wherein the machine tool is guided and supported so as to be movable in any direction.
  5. 【請求項5】第2のスライドは垂直ベッドに対してX軸
    方向に移動可能に案内支持されたXスライドであり、そ
    のXスライドの垂直コラムに対してコラムを囲繞する枠
    部を設けたYスライドがY軸方向に移動可能に案内支持
    されていることを特徴とする、請求項4記載の工作機
    械。
    5. The second slide is an X slide guided and supported so as to be movable in the X-axis direction with respect to a vertical bed, and a Y is provided with a frame portion surrounding the column with respect to the vertical column of the X slide. The machine tool according to claim 4, wherein the slide is guided and supported so as to be movable in the Y-axis direction.
JP07619196A 1996-03-29 1996-03-29 Machine Tools Expired - Lifetime JP3540091B2 (en)

Priority Applications (1)

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Publication Number Publication Date
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JP3540091B2 JP3540091B2 (en) 2004-07-07

Family

ID=13598250

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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WO2001038042A1 (en) * 1999-11-19 2001-05-31 Makino Milling Machine Co., Ltd. Numerically controlled machine tool
EP1116549A2 (en) * 2000-01-17 2001-07-18 Toyoda Koki Kabushiki Kaisha Guiding apparatus for a slidable member driven by a linear motor
WO2001094070A1 (en) * 2000-06-09 2001-12-13 Makino Milling Machine Co., Ltd. Machine tool device and method of changing pallet for the device
US6357094B1 (en) 1999-02-26 2002-03-19 Mori Seiki Co., Ltd. Machine tool
WO2002028592A1 (en) * 2000-10-03 2002-04-11 Camozzi Holding S.P.A. Multi-axis linear motor machine tool
US6538227B1 (en) 1998-12-02 2003-03-25 Sodick Co., Ltd. Electric discharge machine having a balance device for balancing gravitational force acting on a vertically moveable quill
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Publication number Priority date Publication date Assignee Title
US6538227B1 (en) 1998-12-02 2003-03-25 Sodick Co., Ltd. Electric discharge machine having a balance device for balancing gravitational force acting on a vertically moveable quill
US6357094B1 (en) 1999-02-26 2002-03-19 Mori Seiki Co., Ltd. Machine tool
WO2001038042A1 (en) * 1999-11-19 2001-05-31 Makino Milling Machine Co., Ltd. Numerically controlled machine tool
EP1714737A1 (en) * 2000-01-17 2006-10-25 Toyoda Koki Kabushiki Kaisha Guiding apparatus for a slidable member driven by a linear motor
EP1116549A3 (en) * 2000-01-17 2002-09-11 Toyoda Koki Kabushiki Kaisha Guiding apparatus for a slidable member driven by a linear motor
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