JPH0230421A - Electric discharge machining device - Google Patents
Electric discharge machining deviceInfo
- Publication number
- JPH0230421A JPH0230421A JP17897888A JP17897888A JPH0230421A JP H0230421 A JPH0230421 A JP H0230421A JP 17897888 A JP17897888 A JP 17897888A JP 17897888 A JP17897888 A JP 17897888A JP H0230421 A JPH0230421 A JP H0230421A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- machining
- robot device
- workpiece
- small hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003754 machining Methods 0.000 title claims abstract description 51
- 239000012530 fluid Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000035515 penetration Effects 0.000 abstract 1
- 238000009760 electrical discharge machining Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野コ
この発明は、放電加工機に係り、さらに詳しくは細穴の
放電加工を行う放電加工装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrical discharge machine, and more particularly to an electrical discharge machining device for electrical discharge machining of a small hole.
［従来の技術］
第３図は従来の細穴を加工する放電加工機の構成の一例
を示す模式図である。図において、（１）はベット、（
２）はコラム、（３）はコラム（２）の先端部に設けら
れたＺ軸移動ガイド、（４）は加工ヘット、（５）は加
工ヘット（４）をＺ軸移動ガイド（３）の可動部を介し
て駆動するＺ軸ザーホモータ、（６）は被加工物である
。（７）は被加工物（６）を載置してＸ−Ｙ方向に移動
させるＸ−Ｙテーブル、（８）は加工槽、くっ）は電極
、（１０）は電極（９〉を支持する電極チャック、（１
１）は被加工物（６）と電極（９）との間にパルス電圧
を印加するだめの電源、（１２）は電極（９）の中心部
に設けた貫通穴を経て加工部に加工液を圧送するための
ポンプである。[Prior Art] FIG. 3 is a schematic diagram showing an example of the configuration of a conventional electrical discharge machine for machining small holes. In the figure, (1) is a bet, (
2) is a column, (3) is a Z-axis moving guide provided at the tip of the column (2), (4) is a processing head, and (5) is a processing head (4) provided on the Z-axis moving guide (3). The Z-axis motor driven via the movable part (6) is the workpiece. (7) is an X-Y table on which the workpiece (6) is placed and moved in the X-Y direction, (8) is a processing tank, (ku) is an electrode, and (10) supports an electrode (9>). Electrode chuck, (1
1) is a power source that applies a pulse voltage between the workpiece (6) and the electrode (9), and (12) is a power source that supplies machining liquid to the machining part through a through hole provided in the center of the electrode (9). This is a pump for pressure-feeding.
このような構成の放電加工機において、まず、電極チャ
ック（１０）に電極（９）を取付ける。通常の細大加工
用電極には直径か０５〜５ ｍｍ程度の銅系合金を用い
、中心部に加工液が通過する貫通穴が設けである。次に
、被加工物（６）をＸ−Ｙテーブル（７）上に載置、固
定して電源（Ｊｌ）と接続し、ポンプ（１２）を駆動し
て加工液を電極（９）の貫通穴を経て加工部に噴射させ
、Ｚ輔ザーホモータ（５）の駆動によって回転する電極
（９）を下降させながら、電極（９）と被加工物（６）
とのギャップ間で発生する放電エネルギにより細穴の加
工を行う。In the electrical discharge machine having such a configuration, first, the electrode (9) is attached to the electrode chuck (10). A typical electrode for fine machining is made of a copper alloy with a diameter of about 05 to 5 mm, and has a through hole in the center through which the machining fluid passes. Next, the workpiece (6) is placed and fixed on the X-Y table (7), connected to the power source (Jl), and the pump (12) is driven to pump the machining liquid through the electrode (9). The spray is applied to the processing area through the hole, and the electrode (9) and the workpiece (6) are lowered while the electrode (9) rotates by the drive of the Z-axis motor (5).
A small hole is machined using the discharge energy generated between the gap.
この加工によって飛散する加工粉は、加工部に噴出され
る加工液とともにギヤツブを経て被加工物（６）の上部
より加工槽（８）内へ排出される。また、加工中に電極
（９）の先端部と被加工物（６）の加工部とか短絡する
ようなことかあると、この短絡を検知して電極（９）を
僅かに上昇させ、再び所定の放電ギャップを保持させな
から加工を進めるようになっている。Processing powder scattered by this processing is discharged from the upper part of the workpiece (6) into the processing tank (8) through the gear together with the processing liquid that is spouted into the processing section. In addition, if a short circuit occurs between the tip of the electrode (9) and the processed part of the workpiece (6) during processing, this short circuit is detected and the electrode (9) is slightly raised to the specified position again. Machining can proceed without maintaining the discharge gap.
［発明が解決しようとする課題］
上述のような従来の放電加工装置は、細穴加工を行うこ
とを専用とする加工機であるが、具備すべき機能は通常
の型彫り用の放電加工機等と同様であり、このために相
応の機構ならびに制御手段を有することになるので、装
置全体か複雑となりかつ高価になるなどの問題かある。[Problems to be Solved by the Invention] The conventional electrical discharge machining apparatus as described above is a processing machine dedicated to machining small holes, but the functions it should have are those of a normal electrical discharge machine for die-sinking. etc., and since it requires a corresponding mechanism and control means, the entire device becomes complicated and expensive.
この発明は上記のような課題を解消するためになされた
もので、優れた制御性が得られるとともに、低コストで
制作できる細大加工用の放電加工装置を得ることを「ｊ
的とする。This invention was made in order to solve the above-mentioned problems, and aims to provide an electric discharge machining device for small and large machining that provides excellent controllability and can be manufactured at low cost.
target
［課題を解決するだめの手段］
この発明に係る放電加工装置は、中心部に貫通穴を有す
る電極を回転さぜるモータと、加工液を電極の貫通穴へ
送給する取入口と、加］二時に電極と被加工物との短絡
か発生ずると瞬時に電極を短絡部より離脱させる圧電式
アクチュエータとを備えた電極駆動装置を汎用のロボッ
ト装置のアーム部に装着し、このロホット装置の制御指
令によって位置決め、始動、加工終了等の動作か行なわ
れ、固定台上の被加工物を加工するようにしたものであ
る。[Means for Solving the Problems] The electric discharge machining apparatus according to the present invention includes a motor that rotates an electrode having a through hole in the center, an intake port that feeds machining fluid to the through hole of the electrode, and a machining port. ] At the same time, an electrode drive device equipped with a piezoelectric actuator that instantly removes the electrode from the short circuit when a short circuit occurs between the electrode and the workpiece is attached to the arm of a general-purpose robot device. Operations such as positioning, starting, and machining completion are performed according to control commands, and the workpiece on the fixed table is machined.
（作 用コ
この発明における電極の動作は、回転動作は電極駆動装
置内のモータの駆動によって直接行なわれ、加工点の位
置決め、始動より加工終了時までの制御動作、すなわち
上記モータの駆動、放電電圧の印加、加工液の圧送、加
工送り等は全てロホット装置の制御部よりの指令によっ
て行なわれる。(Function) Regarding the operation of the electrode in this invention, the rotational operation is performed directly by driving the motor in the electrode drive device, and the control operations from positioning of the machining point and starting to the end of machining, that is, driving the motor, discharging, etc. Application of voltage, pressure feeding of machining fluid, machining feed, etc. are all performed by commands from the control unit of the Rohot device.
［実施例コ
第１図はこの発明の一実施例による放電加工装置の全体
構成を示す模式図である。図において、（１）は細穴加
工用のベツド、（６）は被加工物、（２１）は被加工物
（６）を載置、固定する加］二台、（８）は加工槽、（
９）は細穴加工用の電極、（２２）は電極（９）を回転
させるとともに放電電圧の印加および加工液の送給を行
う電極駆動装置である。Embodiment FIG. 1 is a schematic diagram showing the overall configuration of an electric discharge machining apparatus according to an embodiment of the present invention. In the figure, (1) is a bed for drilling small holes, (6) is a workpiece, (21) is two machines for placing and fixing the workpiece (6), (8) is a processing tank, (
Reference numeral 9) represents an electrode for machining small holes, and reference numeral 22 represents an electrode drive device that rotates the electrode (9), applies a discharge voltage, and supplies machining fluid.
（２３）は汎用のロボット装置本体、（２４）はロホッ
ト装置のアーム先端部であり、電極駆動装置（２２）と
それぞれのフランジ部等によって結合されている。(23) is the main body of a general-purpose robot device, and (24) is the arm tip of the Rohot device, which is connected to the electrode drive device (22) by respective flanges and the like.
（２５）はロボット装置の制御部、（２Ｂ）、（２７）
はそれぞれ制御部（２５）よりの指令によって、パルス
電圧を出力する電源（１１）および加工液を圧送するポ
ンプへ信号を伝送する信号ラインである。(25) is the control unit of the robot device, (2B), (27)
are signal lines that transmit signals to the power source (11) that outputs a pulse voltage and the pump that pumps the machining fluid in response to commands from the control unit (25), respectively.
第２図は第１図における電極駆動装置（２２）の構成を
詳細に示す断面図であり、（６）は被加工物、（９）は
電極、（１０）は電極（９）を固定して支持するチャッ
クである。（３１）はチャック（１０）とねしによって
結合しているロータ、（３２）は出力軸がロータ（３１
）と結合して電極（９）を回転さぜるモータ、（３３）
はロータ（３１）とフレーム＜３４）との間に介装され
たベアリンク、（３５）はロータ（３１）の外周部で加
工液をシールするだめのメカニカルシール、（３Ｂ）は
電極（９）およびチャック（１０）の結合部の０リング
、（３７）は加工液を圧送する管路である。（３８）は
フレーム（３４）と結合したりニヤガイドであり、リニ
ヤガイドフレーム（３９）と摺動自在に設けられ、圧縮
ばね（４０）の付勢力によって圧電式アクチュエタ（４
１）に圧接している。以上のような構成の電極駆動装置
（２２）はロボット装置のアーム先端部（２４）のフラ
ンジ部でボルト（４２）によって固定されている。FIG. 2 is a cross-sectional view showing in detail the configuration of the electrode drive device (22) in FIG. This is a chuck that supports the (31) is a rotor that is connected to the chuck (10) with a screw, and (32) is a rotor whose output shaft is connected to the rotor (31).
) for rotating the electrode (9), (33)
(35) is a mechanical seal that seals the machining fluid at the outer periphery of the rotor (31), (3B) is the electrode (9) ) and the O-ring (37) at the joint of the chuck (10) is a conduit for pumping the machining fluid. (38) is a near guide that is connected to the frame (34) and is slidably provided on the linear guide frame (39), and is actuated by the piezoelectric actuator (4) by the biasing force of the compression spring (40).
1) is in pressure contact. The electrode drive device (22) configured as described above is fixed to the flange portion of the arm tip (24) of the robot device by bolts (42).
上記のような構成のこの発明による放電加工装置におい
て、まず、所定径の電極（９）をチャック（］０）に装
着し、被加工物（６）を加工台に載置、固定し、第１図
のロボット装置の制御部（２５）の指令によってロボッ
トアームを作動させ、被加工物（６）の放電加工位置に
電極（９）を移動して定置する。次いて、同しく制御部
〈２５）の指令によって電源（１１）を０ＩＪＬで被加
工物（６）と電極（９）との間にパルス電圧を印加する
とともに、ポンプ（１２）を作動させて加工液を電極（
９）の貫通穴へ圧送し、第２図に示すモータ（３２）を
駆動させてロータ（３１）およびチャック（１０）を介
して、電極（９）を回転させなからロボットアームの動
作に従って電極駆動装置（２２）を下降させ、管路（３
７）よりの加工液を注入口（３７ａ） 、ロータフ３１
）に設けた穴（３］ａ＞を介して電極（９）の貫通穴に
圧送し、加工を開始する。In the electric discharge machining apparatus according to the present invention configured as described above, first, the electrode (9) of a predetermined diameter is mounted on the chuck (]0), the workpiece (6) is placed and fixed on the processing table, and the The robot arm is actuated by a command from the control unit (25) of the robot device shown in FIG. 1, and the electrode (9) is moved and fixed at the electric discharge machining position of the workpiece (6). Next, in response to a command from the control unit (25), the power source (11) is set to 0IJL to apply a pulse voltage between the workpiece (6) and the electrode (9), and the pump (12) is activated. Apply the machining fluid to the electrode (
9) and drives the motor (32) shown in Figure 2 to rotate the electrode (9) via the rotor (31) and chuck (10). The drive device (22) is lowered and the pipe line (3
7) Inject the machining fluid from the inlet (37a) to the rotor 31
) is fed under pressure to the through hole of the electrode (9) through the hole (3]a> provided in the electrode (9), and processing is started.
加工中に電極（９）の先端と被加工物（０）の加工部と
か短絡すると、この短絡を瞬時に検知して圧電式アクチ
ュエータ（４Ｊ）を作動させ、圧縮ばね（４０）のイτ
ｊ勢力に坑してリニャガイドク３８）をリニヤガイドフ
レーム（３９）に摺動させて上昇させる。この上昇動作
によって電極（９）と被加工物り６）との短絡が解除さ
れ、所定の放電ギャップで加工を継続する。また、リニ
ヤガイド（３８）は圧電式アクチュエータ（４１）の作
動による上昇動作後、圧縮ばね（４０）の（＝１勢力に
よって定常位置に戻る。If there is a short circuit between the tip of the electrode (9) and the machining part of the workpiece (0) during machining, this short circuit is instantly detected and the piezoelectric actuator (4J) is actuated, causing the compression spring (40) to
j force, slide the linear guide 38) onto the linear guide frame (39) and raise it. This upward movement releases the short circuit between the electrode (9) and the workpiece 6), and machining continues with a predetermined discharge gap. Further, after the linear guide (38) is moved upward by the operation of the piezoelectric actuator (41), it returns to the normal position by the (=1 force) of the compression spring (40).
ついて説明したか、被加工物の載置に対して所望）角度
にロボットアームを動作させることにより、任意方向の
加工動作を行うことかできる。また、細穴加工位置をロ
ボットアームの動作によって所定のパターンに移動させ
、反復する加工を行うことによって所望の形状を得る加
工も可能である。By moving the robot arm at a desired angle relative to the placement of the workpiece, machining operations can be performed in any direction. It is also possible to obtain a desired shape by moving the small hole processing position in a predetermined pattern by the operation of a robot arm and performing repeated processing.
さらに、電極と被加工物との短絡時に作動する圧電式ア
クチュエータの構造を型彫り加工等の他の放？Ｌｉ加工
装置に設けても、」二連の実施例と同様の効果を奏する
。Furthermore, the structure of the piezoelectric actuator that operates when the electrode and workpiece are short-circuited can be used in other ways such as die-sinking. Even if it is provided in a Li processing device, the same effects as in the two-stage embodiment can be obtained.
［発明の効果］
以上のように、この発明によれば細穴加工用電極の回転
手段を有する軽重な電極駆動装置をユニット化して備え
、これを汎用のロボット装置に装着して、このロボット
装置の制御部の指令によって位置決め、始動、加工終了
等の諸制御を行いながら加工するように構成したので、
細穴加工用の放電加工装置を安価で得られるとともに、
ロボット装置の稼動率を高め、また、ロボット装置の制
御指令によって任意の方向の細大加工か可能となるので
、適用範囲か広くかつ制御性の優れた装置か得られる効
果かある。[Effects of the Invention] As described above, according to the present invention, a light and heavy electrode drive device having a means for rotating an electrode for small hole machining is provided as a unit, and this is installed in a general-purpose robot device, and this robot device can be operated. The structure allows machining to be performed while performing various controls such as positioning, starting, and machining completion based on commands from the control section.
In addition to being able to obtain electrical discharge machining equipment for small hole machining at low cost,
The operating rate of the robot device is increased, and fine machining in any direction is possible according to the control commands of the robot device, which has the effect of providing a device with a wide range of applicability and excellent controllability.
第１図はこの発明の一実施例による放電加工装置の全体
構成を示す模式図、第２図は第１図における電極駆動装
置の構成を示す断面図、第３図は従来の細穴加工用の放
電加工装置の構成例を示す概略図である。
図において、（６）は被加工物、（９）は電極、（］０
）はチャック、（１２）はポンプ、（２１）は固定台、
（２２）は電極駆動装置、（２３）はロボット装置本体
、（２４）はアーム先端部、（２５）は制御部、（３１
）はロタ、（３２）はモータ、（３７ａ）は取入口、（
４１）は圧電式アクチュエータである。
なお、図中同一符号は同一または相当部分を示す。FIG. 1 is a schematic diagram showing the overall configuration of an electrical discharge machining device according to an embodiment of the present invention, FIG. 2 is a sectional view showing the configuration of the electrode drive device in FIG. 1, and FIG. 3 is a conventional one for small hole machining. 1 is a schematic diagram showing a configuration example of an electrical discharge machining apparatus. In the figure, (6) is the workpiece, (9) is the electrode, (]0
) is the chuck, (12) is the pump, (21) is the fixing base,
(22) is the electrode drive device, (23) is the robot device body, (24) is the arm tip, (25) is the control unit, (31)
) is the rotor, (32) is the motor, (37a) is the intake port, (
41) is a piezoelectric actuator. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
ャックを駆動するモータと、加工液を上記貫通穴へ送給
する取入口と、加工中に上記電極と被加工物とが短絡し
たときは上記電極を短絡部より離脱させる圧電式アクチ
ュエータとからなる電極駆動装置と、被加工物を載置す
る加工台とを具備し、上記電極駆動装置を加工時の位置
決め、始動、加工終了等の制御指令機能を有するロボッ
ト装置のアーム部に装着したことを特徴とする放電加工
装置。An electrode having a through hole in the center, a motor that drives a chuck that supports this electrode, an intake port that feeds machining fluid to the through hole, and when the electrode and the workpiece are short-circuited during machining. The device is equipped with an electrode drive device consisting of a piezoelectric actuator that detaches the electrode from the short-circuited part, and a processing table on which the workpiece is placed, and the electrode drive device is used for positioning, starting, finishing, etc. during processing. An electric discharge machining device characterized in that it is attached to an arm of a robot device having a control command function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17897888A JPH0230421A (en) | 1988-07-20 | 1988-07-20 | Electric discharge machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17897888A JPH0230421A (en) | 1988-07-20 | 1988-07-20 | Electric discharge machining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0230421A true JPH0230421A (en) | 1990-01-31 |
Family
ID=16057977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17897888A Pending JPH0230421A (en) | 1988-07-20 | 1988-07-20 | Electric discharge machining device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0230421A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5281788A (en) * | 1991-12-17 | 1994-01-25 | Sodick Co., Ltd. | Electroerosion boring apparatus |
| US6969817B2 (en) * | 2003-10-15 | 2005-11-29 | General Electric Company | Apparatus and method for machining in confined spaces |
| CN104972183A (en) * | 2014-04-10 | 2015-10-14 | 周志芹 | Robot efficient and flexible electrical discharge machining method |
| CN109079266A (en) * | 2018-10-23 | 2018-12-25 | 哈尔滨理工大学 | A kind of electric discharge machining apparatus processed using enclosed electrode |
| CN109551066A (en) * | 2018-11-20 | 2019-04-02 | 广东轻工职业技术学院 | A kind of spatially spiral hole electric spark processing unit (plant) |
-
1988
- 1988-07-20 JP JP17897888A patent/JPH0230421A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5281788A (en) * | 1991-12-17 | 1994-01-25 | Sodick Co., Ltd. | Electroerosion boring apparatus |
| US6969817B2 (en) * | 2003-10-15 | 2005-11-29 | General Electric Company | Apparatus and method for machining in confined spaces |
| CN104972183A (en) * | 2014-04-10 | 2015-10-14 | 周志芹 | Robot efficient and flexible electrical discharge machining method |
| CN109079266A (en) * | 2018-10-23 | 2018-12-25 | 哈尔滨理工大学 | A kind of electric discharge machining apparatus processed using enclosed electrode |
| CN109551066A (en) * | 2018-11-20 | 2019-04-02 | 广东轻工职业技术学院 | A kind of spatially spiral hole electric spark processing unit (plant) |
| CN109551066B (en) * | 2018-11-20 | 2020-09-11 | 广东轻工职业技术学院 | Space spiral hole spark-erosion machining device |
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