JPS632626A - Wire electric discharge machine - Google Patents

Wire electric discharge machine

Info

Publication number
JPS632626A
JPS632626A JP14289586A JP14289586A JPS632626A JP S632626 A JPS632626 A JP S632626A JP 14289586 A JP14289586 A JP 14289586A JP 14289586 A JP14289586 A JP 14289586A JP S632626 A JPS632626 A JP S632626A
Authority
JP
Japan
Prior art keywords
motor
linear
linear motor
accuracy
pulse
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
Application number
JP14289586A
Other languages
Japanese (ja)
Inventor
Kimihiko Usuda
公彦 臼田
Shoji Ishihara
石原 紹治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14289586A priority Critical patent/JPS632626A/en
Publication of JPS632626A publication Critical patent/JPS632626A/en
Pending legal-status Critical Current

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  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

PURPOSE:To aim at the maintenance of high accuracy for a long period of time and secure such a workpiece that is high in accuracy of finishing, by driving a drive system such as a table, a saddle or the like directly with a linear motor, making a drive system unit into compact in size, and eliminating friction in a power transmission system. CONSTITUTION:A moving part 30a of a liner motor is clamped to a table 20, and a fixed part 30b is clamped to a bed 22. And, this moving part 30a is constituted of a permanent magnet 40 and both electromagnets 42a and 42b. Here, a pulse current is made to pass through these electromagnets 42a and 42b whereby the moving part 30a is driven by dint of magnetic force to be produced in a gap with the fixed part 30b. At this time since travel corresponding to one pulse of a linear pulse motor is constant strictly it has both positional detection and positioning functions in combination. With the abovementioned constitution, driving froce of the linear motor 30 is directly transmitted to the table 20 and the bed 22 so that power transmission efficiency is high enough, thus such a workpiece that is high in accuracy of finishing is securable.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ワイヤ放電加工装置の改良に関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of a wire electrical discharge machining apparatus.

〔従来の技術〕[Conventional technology]

従来、テーブル・サドル等の駆動には、回転式モータ及
び動力伝達用歯車及びボールネジで構成された駆動系に
より駆動されていた。また、位置検出、位置決めには、
モータの回転角を検出し、その角度よりボールネジの直
線移動距離を推測して位置決めを行っていた。
Conventionally, tables, saddles, etc. have been driven by a drive system composed of a rotary motor, a power transmission gear, and a ball screw. In addition, for position detection and positioning,
Positioning was performed by detecting the rotation angle of the motor and estimating the linear movement distance of the ball screw from that angle.

第3図は、従来の駆動系の一例を示したもので(20)
はテーブル、(22)はベツド、(10)は回転式モー
タ、(12)はモータ回転角検出装置、(14)は動力
伝達用歯車、(16)はボールネジであり、ボールネジ
おねじ(16a)は、テーブル(20)側に取付けてあ
り、ボールネジめねしく16b)は、ベツド(22)側
に取付けである。
Figure 3 shows an example of a conventional drive system (20)
is a table, (22) is a bed, (10) is a rotary motor, (12) is a motor rotation angle detection device, (14) is a power transmission gear, (16) is a ball screw, and the ball screw male thread (16a) is attached to the table (20) side, and the ball screw 16b) is attached to the bed (22) side.

次に動作について説明する。回転式モータ(10)によ
って回転力が発生し、次いで動力伝達用歯車(14)に
て動力をボールネジおねじ(16a)に伝達、ボールネ
ジおねじ(16a)とボールネジめねじ(16b)間に
おいて回転運動を直線運動に変換する。したがってテー
ブル(20)に取付けであるボールネジおねじ(1f3
a)とベツド側に取付けであるボールネジめねじ(16
b)の相対的移動によりテーブル(20)とベツド(2
2)を移動させる8!構となっている。
Next, the operation will be explained. Rotational force is generated by the rotary motor (10), and then the power is transmitted to the ball screw male thread (16a) by the power transmission gear (14), and the rotation occurs between the ball screw male thread (16a) and the ball screw female thread (16b). Convert motion to linear motion. Therefore, the ball screw male screw (1f3) is attached to the table (20).
a) and the female ball screw (16
Due to the relative movement of b), the table (20) and bed (2)
2) Move 8! It is structured as follows.

まlコ、位置検出、位置決めは、回転式モーフ(10)
に取り付けてあろモーフ回転角検出装置(12)により
回転角を検出し、その値よりボールネジおねじ(lea
)とボールネジめねしく1(ib)の相対移動距離をH
1潤し、テーブル(20)の位置決めとしていた。
Rotary morph (10) is used for magko, position detection, and positioning.
The rotation angle is detected by the Aromorph rotation angle detection device (12) attached to the
) and the ball screw 1 (ib) relative movement distance is H
1 and then positioning the table (20).

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上記のような従来のワイヤ放電加工装置では、回転運動
を直線運動に変換して利用していたため、動力伝達系に
おいて歯車のバックラッシュ、ボールネジの効率、ボー
ルネジおねじ、めねじの位置変化によるボールネジの剛
性力の変化、歯車、ボールネジの摩擦による位置決め誤
差の拡大などの問題点があった。
Conventional wire electrical discharge machining equipment as described above converts rotational motion into linear motion and utilizes it, resulting in gear backlash, ball screw efficiency, and ball screw problems due to changes in the position of the male and female ball screws in the power transmission system. There were problems such as changes in the rigidity of the gears and increased positioning errors due to friction between gears and ball screws.

本発明は上記のような問題を解決するためになされたも
ので、従来の回転式モータを使用した駆動系を廃止し、
リニアモータを使用することにより、高精度、高効率の
テーブル移動を行うことを可能とするとともに、高精度
加工が可能なワイヤ放電加工装置を提供することを目的
とする。
The present invention was made to solve the above problems, and eliminates the conventional drive system using a rotary motor.
It is an object of the present invention to provide a wire electrical discharge machining device that uses a linear motor to move a table with high precision and efficiency, and also enables high precision machining.

〔問題点を解決するための手段〕[Means for solving problems]

本発明に係るワイヤ放電加工装置は、テーブル、サドル
を含む可動率の駆動にリニアモータを使用するようにし
たものである。
A wire electrical discharge machining apparatus according to the present invention uses a linear motor to drive a movable portion including a table and a saddle.

〔作用〕[Effect]

本発明においては、テーブル・サドル等の駆動系をリニ
アモータにより直接駆動することにしたので高精度なテ
ーブル・サドル等の駆動制御が可能となる。
In the present invention, since the drive system for the table, saddle, etc. is directly driven by a linear motor, highly accurate drive control of the table, saddle, etc. is possible.

〔発明の実施例〕[Embodiments of the invention]

第1図は、本発明の一実施例を示す断面図であり、図に
おいて(20) 、 (22)は、第3図の従来例の同
一符号と同一部分である。C30)はりニアモータであ
り、可動部(30a)がテーブル(20)に固定、固定
部(30b)がベツド(22−1に固定されている。
FIG. 1 is a sectional view showing an embodiment of the present invention, and in the figure, (20) and (22) are the same parts as the same reference numerals in the conventional example shown in FIG. C30) It is a beam near motor, and the movable part (30a) is fixed to the table (20), and the fixed part (30b) is fixed to the bed (22-1).

第2図は、リニアモータ(30)のINであるリニアパ
ルスモータの構造であり、(40)は永久磁石、(42
)は電磁石であり、(40) 、 (42a) 、 (
42b)を合せたものが可動部(30a)である。上記
構成のリニアパルスモークにおいて、(42a) 、 
(42b)にパルス電流を通すことにより固定部(30
b)との間1こ発生する磁気力により可動部(30al
が駆動されろしくみとなっている。ことき、リニアパル
スモータの1パルスに対応する移動景は厳密に一定であ
り、このため、このリニヤモータによれば位置検出及び
位置決め機能をあわせもっことができる。
Figure 2 shows the structure of a linear pulse motor that is the IN of the linear motor (30), where (40) is a permanent magnet and (42) is a permanent magnet.
) is an electromagnet, and (40) , (42a) , (
42b) is the movable part (30a). In the linear pulse smoke having the above configuration, (42a),
By passing a pulse current through (42b), the fixed part (30
b) Due to the magnetic force generated between the movable part (30al
This is how it is driven. At this time, the moving scene corresponding to one pulse of the linear pulse motor is strictly constant, and therefore, this linear motor can perform both position detection and positioning functions.

上記のように構成されたワイヤ放電加工装置において、
リニアモータ(30)の駆動力が直接、テーブル(20
)及びベツド(22)に伝丸られろことにより動力伝達
効率が高くまた、駆動系及び位置検出系の摩擦も無いこ
とから長期間にわたり、高精度を維持ずろことが可能と
なる。
In the wire electrical discharge machining apparatus configured as above,
The driving force of the linear motor (30) is directly applied to the table (20).
) and the bed (22), the power transmission efficiency is high, and since there is no friction in the drive system and position detection system, it is possible to maintain high accuracy over a long period of time.

なお、上記実施例では、テーブル・サドルにリニアモー
タを設けた例を示したが、その他装M内の直線移動を行
う、すべての部分に使用しても、上記実施例と同様の効
果を奏する。
In addition, although the above embodiment shows an example in which a linear motor is provided in the table/saddle, the same effect as in the above embodiment can be obtained even if it is used in all other parts of the equipment M that perform linear movement. .

〔発明の効果〕〔Effect of the invention〕

以上のように、本発明によれば、従来回転式モータと動
力伝達用歯車とボールネジによりテーブルを駆動してい
たものをリニアモータにより駆動位置検出・位置決めを
行うよう構成したので駆動系装置がコンパクトになり、
また、動力伝達系に摩1察も無いことから長期間高精度
を維持でき、加工精度の高い加工物を得られる効果があ
る。
As described above, according to the present invention, the drive system is compact because the table is conventionally driven by a rotary motor, a power transmission gear, and a ball screw, but the drive position is detected and positioned by a linear motor. become,
In addition, since there is no friction in the power transmission system, high accuracy can be maintained for a long period of time, and there is an effect that a workpiece with high machining accuracy can be obtained.

【図面の簡単な説明】 第1図は、本発明の一実施例を示す構成図、第2図は別
の実施例を示す構成図、第3図は従来の技術によるテー
ブル駆動系を示す構成図である。 図において、10:回転式モータ、12:モーフ回転角
検出装置、16a:ボールネジおねじ、16b−ボール
ネジめねし、20:テーブル、22:ベツド、30a:
 リニアモータ可動部、30b:リニアモータ固定部、
40;永久磁石、42a:電磁石、42b:電磁石 で同一符号は同−又は相当部分を示す。
[Brief Description of the Drawings] Fig. 1 is a configuration diagram showing one embodiment of the present invention, Fig. 2 is a configuration diagram showing another embodiment, and Fig. 3 is a configuration diagram showing a table drive system according to a conventional technique. It is a diagram. In the figure, 10: rotary motor, 12: morph rotation angle detection device, 16a: male ball screw, 16b - female ball screw, 20: table, 22: bed, 30a:
Linear motor movable part, 30b: linear motor fixed part,
40: permanent magnet, 42a: electromagnet, 42b: electromagnet, and the same reference numerals indicate the same or corresponding parts.

Claims (3)

【特許請求の範囲】[Claims] (1)ワイヤ電極と導電性被加工物間に形成される加工
部に加工液を放出すると共に、上記加工部に放電を発生
させて上記導電性被加工物を加工する装置において、テ
ーブル・サドルを含む可動部の駆動源として、リニアモ
ータを設置したことを特徴とするワイヤ放電加工装置。
(1) In an apparatus for machining the conductive workpiece by discharging machining fluid into the machining part formed between the wire electrode and the conductive workpiece and generating electric discharge in the machining part, the table/saddle A wire electrical discharge machining device characterized in that a linear motor is installed as a drive source for a movable part including.
(2)リニアモータは、位置検出及び位置決めの両機能
を備えているものであることを特徴とする特許請求の範
囲第1項記載のワイヤ放電加工装置。
(2) The wire electrical discharge machining apparatus according to claim 1, wherein the linear motor has both position detection and positioning functions.
(3)リニヤーモータはリニヤーパルスモータであるこ
とを特徴とする特許請求の範囲第2項記載のワイヤ放電
加工装置。
(3) The wire electrical discharge machining apparatus according to claim 2, wherein the linear motor is a linear pulse motor.
JP14289586A 1986-06-20 1986-06-20 Wire electric discharge machine Pending JPS632626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14289586A JPS632626A (en) 1986-06-20 1986-06-20 Wire electric discharge machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14289586A JPS632626A (en) 1986-06-20 1986-06-20 Wire electric discharge machine

Publications (1)

Publication Number Publication Date
JPS632626A true JPS632626A (en) 1988-01-07

Family

ID=15326096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14289586A Pending JPS632626A (en) 1986-06-20 1986-06-20 Wire electric discharge machine

Country Status (1)

Country Link
JP (1) JPS632626A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6509538B2 (en) * 2000-03-10 2003-01-21 Sodick Co., Ltd. Wire cut electric discharge machine using linear motors
EP3322075A1 (en) 2016-11-11 2018-05-16 Agie Charmilles SA Linear shaft motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6509538B2 (en) * 2000-03-10 2003-01-21 Sodick Co., Ltd. Wire cut electric discharge machine using linear motors
EP3322075A1 (en) 2016-11-11 2018-05-16 Agie Charmilles SA Linear shaft motor
US10680495B2 (en) 2016-11-11 2020-06-09 Agie Charmilles Sa Linear shaft motor

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