JPH08229747A - Electric discharge machine - Google Patents
Electric discharge machineInfo
- Publication number
- JPH08229747A JPH08229747A JP6014995A JP6014995A JPH08229747A JP H08229747 A JPH08229747 A JP H08229747A JP 6014995 A JP6014995 A JP 6014995A JP 6014995 A JP6014995 A JP 6014995A JP H08229747 A JPH08229747 A JP H08229747A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- fine hole
- hole machining
- guide
- machining electrode
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/26—Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
- B23H7/265—Mounting of one or more thin electrodes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
【０００１】[0001]
【産業上の技術分野】本発明は、細穴加工用電極によ
り、ワークに細穴を加工する放電加工機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric discharge machine for machining a fine hole in a work with a fine hole machining electrode.
【０００２】[0002]
【従来の技術】一般に、細穴加工に用いられる細穴加工
用電極は消耗がはげしく、よって長い細穴加工用電極を
用いて細穴加工を行う。ヘッドに装着した細穴加工用電
極が長い場合には、電極ガイドとの摩擦などが影響して
電極が撓んで放電加工に影響を与え、加工時間が長くな
る等の欠点が生じるために、細穴加工用電極の最大スパ
ンの中間を中間電極案内ノズルによりガイドし、これを
ヘッドに装着した細穴加工用電極の昇降に同調して移動
するようにして、長い細穴加工用電極を使用しても加工
中に電極の撓みが生じないようにした放電加工装置（昭
和６０年特許出願公開第１０８２３４号公報）が提案さ
れている。上記装置は、ヘッドとワークとの間で常に中
間電極案内ノズルにより細穴加工用電極をガイドするた
め、電極マガジンとの干渉が発生し、電極自動交換の実
現が困難である。また、上記技術は、細穴放電加工専用
機という考え方をベースにしており、電極ガイド部及び
電極案内ノズル部を取り外すといった技術思想が、一
切、窺えない。しかし、同一のワークにおいて、細穴加
工⇔形彫放電加工といった加工パターンも充分考えら
れ、上記装置では、こうした加工が同一の機械で行なう
ことができず、行うとすれば、細穴加工放電加工機と形
彫放電加工機との２台が必要となり、加工能率が悪い。2. Description of the Related Art Generally, a fine hole machining electrode used for fine hole machining consumes a lot of wear, and therefore a long fine hole machining electrode is used for fine hole machining. If the fine hole machining electrode mounted on the head is long, the friction with the electrode guide affects the electrode to bend and affect the electric discharge machining, resulting in disadvantages such as long machining time. By using the intermediate electrode guide nozzle to guide the middle of the maximum span of the hole drilling electrode and moving this in synchronization with the elevation of the hole drilling electrode mounted on the head, a long hole drilling electrode is used. Even so, there has been proposed an electric discharge machining apparatus (Japanese Patent Application Laid-Open No. 108234 of 1985) in which the electrode is not bent during machining. In the above apparatus, since the electrode for fine hole processing is always guided by the intermediate electrode guide nozzle between the head and the work, interference with the electrode magazine occurs and it is difficult to realize automatic electrode exchange. Further, the above-mentioned technology is based on the concept of a dedicated machine for small hole electrical discharge machining, and there is no technical idea of removing the electrode guide part and the electrode guide nozzle part. However, machining patterns such as fine hole machining ⇔ die-sinking electric discharge machining can be considered in the same work, and the above machine cannot perform such machining on the same machine. Two machines, a machine and a die-sinking electric discharge machine, are required, resulting in poor machining efficiency.
【０００３】[0003]
【発明が解決しようとする課題】上述の問題点に鑑み、
本発明は、細穴加工用電極の自動交換が可能であり、同
一の機械で細穴加工、通常の形彫放電加工の両方を行な
うことができる放電加工機を提供することを目的とす
る。In view of the above problems,
It is an object of the present invention to provide an electric discharge machine capable of automatically exchanging electrodes for fine hole machining and capable of performing both fine hole machining and ordinary die-sinking electric discharge machining with the same machine.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
本発明は、以下に述べるとおりの各構成要件を具備して
なる。 （１） ヘッドに保持した細穴加工用電極とワークとの
間で、前記細穴加工用電極にＺ軸方向の相対送りを与え
ながらワークに細穴を加工する放電加工機において、前
記ワークと近接して配置され前記細穴加工用電極を支承
する細穴を備えて、前記細穴加工用電極が前記ワークと
の間でＺ軸方向の相対移動をする際、前記細穴加工用電
極を案内、支持する電極ガイド装置と、前記細穴加工用
電極を前記電極ガイド装置の細穴へ挿入する時、前記細
穴加工用電極の先端部が前記電極ガイド装置の細穴に挿
入されるように前記細穴加工用電極を誘導・支持する電
極誘導装置と、を具備したことを特徴とする放電加工
機。In order to achieve the above-mentioned object, the present invention is provided with the respective constituents described below. (1) In an electric discharge machine for machining a fine hole in a work while applying relative feed in the Z-axis direction to the fine hole machining electrode held between the fine hole machining electrode held by the head and the work, The fine hole machining electrode is provided in close proximity to support the fine hole machining electrode, and when the fine hole machining electrode moves relative to the work in the Z-axis direction, the fine hole machining electrode is An electrode guide device for guiding and supporting, and when inserting the fine hole machining electrode into the fine hole of the electrode guide device, the tip of the fine hole machining electrode is inserted into the fine hole of the electrode guide device. An electric discharge machine comprising: an electrode guiding device for guiding and supporting the fine hole machining electrode.
【０００５】（２） 前記電極誘導装置は、Ｚ軸方向と
平行な方向に移動可能に設けられた第１移動手段と、前
記第１移動手段に設けられ、Ｚ軸方向と直交する方向に
移動可能な第２移動手段と、前記第２移動手段に設けら
れ、前記細穴加工用電極を緩く挾む挾み部材を含む挾み
手段とからなり、前記細穴加工用電極の前記電極ガイド
装置の細穴への挿入時、前記挾み手段が前記第２移動手
段によりＺ軸方向と直交する方向に移動して、前記細穴
加工用電極の基部に位置決めされ、前記挾み部材で前記
細穴加工用電極を緩く挾み、前記ヘッドと前記電極ガイ
ド装置との間で、前記第１移動手段によりＺ軸方向と平
行な方向に移動して、前記細穴加工用電極の先端部を前
記電極ガイド装置の細穴部に位置合わせするように構成
した上記第（１）項記載の放電加工機。 （３） 前記電極ガイド装置は、当該電極ガイド装置を
前記細穴加工用電極の挿入位置と、ワークの加工領域外
の退避位置との間で進退移動させる進退手段を有してな
る上記第（１）項または第（２）項に記載の放電加工
機。(2) The electrode guiding device is provided in the first moving means so as to be movable in a direction parallel to the Z-axis direction, and is provided in the first moving means so as to move in a direction orthogonal to the Z-axis direction. The electrode guide device for the fine hole drilling electrode, which comprises a possible second moving means and a picking means which is provided on the second moving means and includes a picking member that loosely sandwiches the fine hole drilling electrode. At the time of insertion into the narrow hole, the gripping means is moved by the second moving means in a direction orthogonal to the Z-axis direction and is positioned at the base of the narrow hole machining electrode, and the gripping member is used to move the thinning member. The electrode for hole drilling is clamped loosely, and is moved between the head and the electrode guide device by the first moving means in a direction parallel to the Z-axis direction to move the tip of the electrode for hole drilling to Item (1) above configured to be aligned with the narrow hole portion of the electrode guide device. The electric discharge machine described. (3) The electrode guide device includes advance / retreat means for advancing / retreating the electrode guide device between an insertion position of the fine hole machining electrode and a retracted position outside a machining region of a workpiece. The electric discharge machine according to item 1) or (2).
【０００６】[0006]
【作用】細穴加工用電極の自動交換を行う場合、図５の
フローチャートに示すように、 （１）主軸をＺ軸方向に上昇し、かつ、Ｘ軸及びＹ軸方
向にも移動させて電極自動交換位置に停止させる。同時
に、加工槽から加工液を排出し、加工槽枠を下降させ
る。 （２）使用済みの細穴加工用電極を主軸から取り外し、
新しい細穴加工用電極を主軸に装着する。 （３）電極誘導装置をＺ軸方向へ上昇し、その端部に設
けた挾み手段をＺ軸方向と直交する方向に前進させ、細
穴加工用電極の基部を緩く挾む。 （４）細穴加工用電極の基部を緩く挾んだまま、電極誘
導装置をＺ軸方向と平行な方向に下降して細穴加工用電
極をしごきながら誘導し、その先端部を電極ガイド装置
に設けた細穴と同心に位置合わせする。 （３）主軸をＺ軸方向と平行な方向に下降し、細穴加工
用電極の先端部を電極ガイド装置に設けた細穴に挿入、
支持する。 （４）電極誘導装置の挾み手段を開放し、Ｚ軸方向と直
交する方向に移動し、主軸頭と衝突しないようにワーク
の加工領域外へ退避させる。 （５）さらに、電極ガイド装置をワークの加工領域外へ
退避させることにより、通常の形彫放電加工を行なう準
備が整う。When the electrodes for machining the small holes are automatically replaced, as shown in the flowchart of FIG. 5, (1) the main shaft is moved up in the Z-axis direction and moved in the X-axis and Y-axis directions. Stop at the automatic exchange position. At the same time, the processing liquid is discharged from the processing tank and the processing tank frame is lowered. (2) Remove the used fine hole machining electrode from the spindle,
Attach a new fine hole machining electrode to the spindle. (3) The electrode guiding device is moved up in the Z-axis direction, and the pinching means provided at the end thereof is advanced in the direction orthogonal to the Z-axis direction to loosely pinch the base part of the fine hole machining electrode. (4) With the base of the fine hole machining electrode held loosely, the electrode inducing device descends in the direction parallel to the Z-axis direction to guide the fine hole machining electrode while squeezing the electrode, and the tip of the electrode guide device is guided. Align it concentrically with the small hole provided in. (3) The spindle is lowered in the direction parallel to the Z-axis direction, and the tip of the fine hole machining electrode is inserted into the fine hole provided in the electrode guide device.
To support. (4) The gripping means of the electrode guiding device is opened, moved in the direction orthogonal to the Z-axis direction, and retracted out of the machining area of the work so as not to collide with the spindle head. (5) Further, by retracting the electrode guide device to the outside of the work area of the work, the preparation for the normal die-sinking electric discharge machining is completed.
【０００７】[0007]
【実施例】以下に、本発明放電加工機の実施例を図面に
沿って説明するが、この実施例を構成する各部材は、本
発明の出願当時の業界における技術レベルの範囲内で、
各種変形が可能であるから、格別の理由を示すことな
く、以下に記載の実施例の構成のみに基づいて本発明の
要旨を限定して解釈してはならない。Embodiments of the electric discharge machine of the present invention will be described below with reference to the drawings. Each member constituting this embodiment is within the technical level in the industry at the time of the application of the present invention.
Since various modifications are possible, the gist of the present invention should not be construed in a limited manner based only on the configuration of the embodiments described below without showing a special reason.
【０００８】図１は、本発明放電加工機の要部正面図
で、図２は、図１の側面図である。テーブル１は、シー
ル３を挟んで滑動して昇降する加工槽５に囲まれ、その
上面にはワーク６が固定されている。また、テーブル１
は、Ｘ軸方向に移動可能なコラム７と共に図示しないベ
ッド上に設けられており、コラム７にはＹ軸案内レール
に沿ってＹ軸方向に移動可能なラムの全面に主軸頭11が
設けられている。主軸13は、主軸頭11に対しＺ軸方向に
移動可能、かつ、Ｚ軸方向の中心軸の周りに回転可能に
設けられ、主軸13下部には絶縁プレート14を介してチャ
ック15が取り付けられ、コレットチャック16で保持した
細穴加工用電極17を有するホルダ19をプルスタッド21を
介して同芯に把持している。FIG. 1 is a front view of a main part of the electric discharge machine of the present invention, and FIG. 2 is a side view of FIG. The table 1 is surrounded by a processing tank 5 that slides and moves up and down with a seal 3 in between, and a work 6 is fixed to the upper surface thereof. Also, table 1
Is provided on a bed (not shown) together with the column 7 movable in the X-axis direction, and the column head 7 is provided on the entire surface of the ram movable in the Y-axis direction along the Y-axis guide rail. ing. The spindle 13 is provided so as to be movable in the Z-axis direction with respect to the spindle head 11 and rotatable about a central axis in the Z-axis, and a chuck 15 is attached to the lower portion of the spindle 13 via an insulating plate 14. A holder 19 having a fine hole machining electrode 17 held by a collet chuck 16 is concentrically held via a pull stud 21.
【０００９】ワーク６と近接して設けられ、細穴加工用
電極17の先端部を細穴に案内する支持ガイド23は、その
基部を主軸頭11側面に取り付けた支持ガイド案内装置25
により案内され、図示していない駆動手段により支持ガ
イド23をＺ軸方向と平行な方向に移動可能となってい
る。また、支持ガイド23には細穴加工用電極17を案内す
る細穴が設けられ、その定位値は、主軸13の中心軸を通
るＺ軸線上、つまり、細穴加工用電極17の中心軸上に配
置されている。支持ガイド23のワーク６に対するＺ軸方
向の位置は、ワーク６の厚みによって決定される。誘導
ガイド27は、その端部に設けた誘導ブロック29が誘導ガ
イド27に対しＺ軸方向と直交する方向に滑動可能に設け
られ、細穴加工用電極17を保持したコレットチャック16
と支持ガイド23との間で、細穴加工用電極17を把持、開
放する。なお、誘導ブロック29は、細穴加工用電極17を
支持ガイド23の細穴へ誘導するとき以外は、Ｚ軸方向と
直交する方向に移動してワーク６の加工領域外に退避し
ている。また、誘導ガイド27は、その基部をコラム９の
正面に取り付けた誘導ガイド案内装置31により案内さ
れ、図示していない駆動手段によりＺ軸方向と平行な方
向に移動可能となっている。A support guide 23, which is provided in the vicinity of the work 6 and guides the tip end of the fine hole machining electrode 17 to the fine hole, has a base portion attached to the side face of the spindle head 11 for supporting guide 25.
The support guide 23 can be moved in a direction parallel to the Z-axis direction by a driving means (not shown). Further, the support guide 23 is provided with a fine hole for guiding the fine hole machining electrode 17, and its localization value is on the Z axis passing through the central axis of the main shaft 13, that is, on the central axis of the fine hole machining electrode 17. It is located in. The position of the support guide 23 in the Z-axis direction with respect to the work 6 is determined by the thickness of the work 6. The guide guide 27 is provided with a guide block 29 provided at an end thereof so as to be slidable with respect to the guide guide 27 in a direction orthogonal to the Z-axis direction, and a collet chuck 16 holding a fine hole machining electrode 17 is provided.
The fine hole machining electrode 17 is gripped and opened between the support guide 23 and the support guide 23. The guide block 29 moves in a direction orthogonal to the Z-axis direction and retracts outside the machining area of the workpiece 6 except when guiding the fine hole machining electrode 17 to the fine hole of the support guide 23. Further, the guide guide 27 is guided by a guide guide guide device 31 whose base is attached to the front surface of the column 9 and can be moved in a direction parallel to the Z-axis direction by a driving means (not shown).
【００１０】コラム７全面には、中央部に抜け穴33が設
けられ、その空間部に電極交換装置が配置されている。
電極交換位置において主軸13のチャック15から外した使
用済みの細穴加工用電極17を保持したホルダ19がプルス
タッド21を電極交換装置の電極マガジン34に把時、収納
され、代わりに、新しい細穴加工用電極17を保持したホ
ルダ19が主軸13のチャック15の中心軸に一致するまで移
送され、プルスタッド21を引き込むようにしてチャック
15に固着される。なお、図１及び２は、電極交換後、主
軸13を若干、Ｚ軸方向と平行な方向に下降させて、細穴
加工用電極17の先端部が支持ガイド23の細穴に承けられ
た状態を示している。本実施例放電加工装置は、稼動
中、細穴加工用電極17の先端部が支持ガイド23の細穴に
より承けられ、主軸13がＺ軸の中心軸の周りに回転しな
がらＺ軸方向に相対送りを与え、ワーク６に対して細穴
加工を行う。A through hole 33 is provided in the center of the entire surface of the column 7, and an electrode exchange device is arranged in the space.
At the electrode exchange position, the holder 19 holding the used fine hole machining electrode 17 removed from the chuck 15 of the spindle 13 is stored when the pull stud 21 is held in the electrode magazine 34 of the electrode exchange device. The holder 19 holding the hole forming electrode 17 is transferred until it coincides with the central axis of the chuck 15 of the spindle 13, and the pull stud 21 is pulled in to chuck the holder.
Sticked to 15. 1 and 2, after exchanging the electrode, the main shaft 13 is slightly lowered in a direction parallel to the Z-axis direction, and the tip of the fine hole machining electrode 17 is received in the fine hole of the support guide 23. Is shown. In the electric discharge machining apparatus of this embodiment, the tip of the fine hole machining electrode 17 is received by the fine hole of the support guide 23 during operation, and the main shaft 13 rotates in the Z axis direction while rotating around the central axis of the Z axis. Feeding is performed, and the work 6 is subjected to fine hole processing.
【００１１】図３は、誘導ブロックの拡大平面図であ
る。誘導ブロック29は、切欠き部35を有する固定アーム
36と、これに対向して移動する切欠き部37を備えた可動
ブロック39とからなり、可動ブロック39はエアシリンダ
40により付勢され支承軸43に沿って移動し、切欠き部3
5，37との間で細穴加工用電極17を緩く挾持し、開放す
る。なお、切欠き部35，37との間の空隙は、固定アーム
36に可動ブロック39が近接したとき、細穴加工用電極17
が長手軸方向に滑動できる程度とし、固定アーム36の開
放時、固定アーム36と可動ブロック39との隙間を通っ
て、細穴加工用電極17が外部と切欠き部35，37との間を
出入することができる。FIG. 3 is an enlarged plan view of the guide block. The guide block 29 is a fixed arm having a cutout 35.
The movable block 39 includes an air cylinder 36 and a movable block 39 having a notch 37 that moves opposite to the movable block 39.
It is urged by 40 and moves along the bearing shaft 43, and the notch 3
The fine hole machining electrode 17 is loosely held between 5 and 37 and opened. Note that the gap between the notches 35 and 37 is the fixed arm.
When the movable block 39 comes close to 36, the fine hole machining electrode 17
Is slidable in the longitudinal axis direction, and when the fixed arm 36 is opened, it passes through the gap between the fixed arm 36 and the movable block 39, and the fine hole machining electrode 17 is provided between the outside and the notches 35 and 37. You can go in and out.
【００１２】図４は、細穴加工用電極17の自動交換動作
における電極誘導装置及び電極ガイド装置の一連の動作
を示す。図４（ａ）は、加工槽５枠を下降させ主軸13を
Ｚ軸方向に上昇させて電極交換位置まで移動し、細穴加
工用電極17の自動交換後、誘導ガイド27をＺ軸方向と平
行な方向に上昇させ、細穴加工用電極17の基部に誘導ガ
イド27の端部に設けた誘導ブロック29をＺ軸方向と直交
する方向に前進させたところを示し、この時、誘導ブロ
ック29の固定アーム36を開放し、固定アーム36と稼動ブ
ロックとの隙間を通って細穴加工用電極17を切欠き部3
5，37との間に進入させた後、エアシリンダ40の付勢に
より可動ブロック39を支承軸43に沿って移動させ、切欠
き部35，37との間に細穴加工用電極17を緩く挾む工程を
示す。なお、支持ガイド23はテーブル１上に取り付けた
ワーク６の厚みにより、そのＺ軸方向の位置が決定さ
れ、ワーク６が交換されるまでは支持ガイド23を移動さ
せることはない。図４（ｂ）は、細穴加工用電極17を挾
んだ状態で誘導ガイド27をＺ軸方向に下降させ、誘導ブ
ロック29の切欠き部35，37とにより細穴加工用電極17を
しごきながら、その先端部を下方の支持ガイド23の細穴
に向かう位置に位置合わせする工程を示す。図４（ｃ）
は、主軸13を下降させて、細穴加工用電極17の先端部を
支持ガイド23の細穴に挿入する工程を示し、細穴加工用
電極17の先端部は、誘導ブロック29の切欠き部35，37と
により案内され、支持ガイド23の細穴に容易に挿入され
る。図４（ｄ）は、細穴加工用電極17を支持ブロック23
へ挿入後、誘導ブロック29をＺ軸方向と直交する方向に
移動して細穴加工用電極17を誘導ブロック29から開放す
ると共に誘導ブロック29をワーク６の加工領域外へ退避
させる工程を示す。また、図５は、細穴加工用電極17の
自動交換動作のフローチャートを示し、その詳細は、FIG. 4 shows a series of operations of the electrode guide device and the electrode guide device in the automatic exchange operation of the fine hole machining electrode 17. In FIG. 4 (a), the frame of the processing tank 5 is lowered and the spindle 13 is raised in the Z-axis direction to move to the electrode exchange position. After the automatic exchange of the fine hole machining electrode 17, the guide 27 is moved in the Z-axis direction. It is shown that the guide block 29 provided at the end of the guide guide 27 on the base portion of the hole machining electrode 17 is moved forward in the direction orthogonal to the Z-axis direction. Open the fixed arm 36 of No. 3 and pass through the gap between the fixed arm 36 and the working block to insert the fine hole machining electrode 17 into the notch 3.
After entering between the holes 5 and 37, the movable block 39 is moved along the support shaft 43 by the urging of the air cylinder 40, and the fine hole machining electrode 17 is loosened between the notches 35 and 37. The sandwiching process is shown. The position of the support guide 23 in the Z-axis direction is determined by the thickness of the work 6 mounted on the table 1, and the support guide 23 is not moved until the work 6 is replaced. In FIG. 4B, the guide 17 is lowered in the Z-axis direction while the fine hole machining electrode 17 is sandwiched, and the fine hole machining electrode 17 is squeezed by the notches 35 and 37 of the guide block 29. However, the step of aligning the tip of the support guide 23 with the position toward the narrow hole of the lower support guide 23 will be described. Figure 4 (c)
Shows the step of lowering the spindle 13 to insert the tip of the fine hole machining electrode 17 into the fine hole of the support guide 23. The tip of the fine hole machining electrode 17 is a cutout portion of the guide block 29. It is guided by 35 and 37 and easily inserted into the small hole of the support guide 23. FIG. 4D shows a support block 23 for supporting the fine hole machining electrode 17.
After the insertion, the guide block 29 is moved in the direction orthogonal to the Z-axis direction to open the fine hole machining electrode 17 from the guide block 29 and retract the guide block 29 out of the machining region of the workpiece 6. Further, FIG. 5 shows a flow chart of the automatic exchange operation of the fine hole machining electrode 17, the details of which are as follows.
【作用】の欄で説明済みである。図４（ａ），（ｂ），
（ｃ）及び（ｄ）の記載と図５のフローチャートとの説
明は、略、対応するもので、図４には、フローチャート
におけるそれぞれの工程が図示されている。It has already been described in the section of [Operation]. 4 (a), (b),
The descriptions of (c) and (d) and the description of the flowchart of FIG. 5 are substantially the same, and FIG. 4 illustrates respective steps in the flowchart.
【００１３】図６は、本実施例放電加工機における電極
ガイド装置及び電極誘導装置をワークの加工領域外へ退
避させた状態を示す正面図である。なお、図６には、誘
導ガイド案内装置31が、コラム７の向かって左側に設け
てあるが、その構成、効果は、図１及び２で説明した放
電加工機と変わりはない。また、支持ガイド23の端部
に、電極誘導装置における誘導ブロック29と、略、等し
い支持ブロック41が設けてあるが、その構成、効果は、
電極誘導装置における誘導ブロック29の動作と、略、同
一である。支持ガイド23の端部に設けた支持ブロック41
を細穴加工用電極17の挿入位置からＺ軸方向と直交する
方向に移動し、かつ、支持ガイド23の全体をＺ軸方向へ
上昇させ、電極支持装置をワーク６の加工領域外へ退避
する。また、誘導ブロック29は細穴加工用電極17を支持
ブロック41へ挿入するとき以外は、ワーク６の加工領域
外へ退避しており、通常の形彫放電加工を行う加工領域
が確保できる。さらに、図１及び２における細穴加工用
電極17の代わりに形彫加工用電極45をホルダ19に保持
し、電極マガジン34に収納すれば、電極自動交換も可能
となる。FIG. 6 is a front view showing a state in which the electrode guide device and the electrode guide device in the electric discharge machine of this embodiment are retracted out of the machining area of the work. Note that, although the guide guide guide device 31 is provided on the left side of the column 7 in FIG. 6, the configuration and effect thereof are the same as those of the electric discharge machine described in FIGS. 1 and 2. Further, at the end of the support guide 23, a guide block 29 in the electrode guide device and a support block 41 that is substantially the same as the guide block 29 are provided.
The operation is substantially the same as that of the guide block 29 in the electrode guide device. Support block 41 provided at the end of the support guide 23
Is moved in the direction orthogonal to the Z-axis direction from the insertion position of the fine hole machining electrode 17, and the entire support guide 23 is raised in the Z-axis direction to retract the electrode support device from the machining area of the work 6. . Further, the guide block 29 is retracted to the outside of the machining area of the work 6 except when the fine hole machining electrode 17 is inserted into the support block 41, and a machining area for performing ordinary die-sinking electric discharge machining can be secured. Further, if the engraving electrode 45 is held in the holder 19 and stored in the electrode magazine 34 instead of the fine hole machining electrode 17 shown in FIGS. 1 and 2, automatic electrode exchange is also possible.
【００１４】[0014]
【発明の効果】本発明は、以上述べたとおりの構成、作
用を備えるものであるから、 （１）細穴加工用電極の自動交換後、電極誘導装置によ
り細穴加工用電極を緩く挾みしごきながら誘導し、細穴
加工用電極の先端部を電極ガイド装置の細穴に対し、自
動的に、かつ、確実に挿入できようにして、さらに、電
極誘導装置との干渉が発生することがないため、細穴加
工用電極の自動交換が可能になる。 （２）電極ガイド装置を細穴加工用電極の挿入位置から
必要に応じて自動的に退避可能としたので、同一の機械
で、細穴加工に加えて通常の形彫放電加工も行なうこと
ができる。といった、従来公知の放電加工機には期待す
ることができない、格別な作用、効果を奏することがで
きる。EFFECTS OF THE INVENTION The present invention has the structure and operation as described above. (1) After the automatic exchange of the fine hole machining electrode, the fine hole machining electrode is loosely clamped by the electrode guiding device. Guide while squeezing so that the tip of the fine hole machining electrode can be automatically and surely inserted into the fine hole of the electrode guide device, and further interference with the electrode guide device may occur. Since there is no such hole, it is possible to automatically replace the electrode for fine hole processing. (2) Since the electrode guide device can be automatically retracted from the insertion position of the fine hole machining electrode as needed, the same machine can perform ordinary die-sinking electric discharge machining in addition to fine hole machining. it can. As described above, it is possible to achieve special actions and effects that cannot be expected from a conventionally known electric discharge machine.
【図１】本発明放電加工機の一実施例の要部正面図であ
る。FIG. 1 is a front view of a main part of an embodiment of an electric discharge machine of the present invention.
【図２】図１における側面図である。FIG. 2 is a side view of FIG.
【図３】電極誘導装置の誘導ブロックの拡大平面図であ
る。FIG. 3 is an enlarged plan view of a guide block of the electrode guide device.
【図４】細穴加工用電極の自動交換動作における電極誘
導装置及び電極ガイド装置の一連の動作を示す。FIG. 4 shows a series of operations of the electrode guiding device and the electrode guide device in the automatic exchanging operation of the fine hole machining electrode.
【図５】本発明放電加工機の電極自動交換動作のフロー
チャートである。FIG. 5 is a flowchart of an automatic electrode exchange operation of the electric discharge machine of the present invention.
【図６】本発明実施例の放電加工機における電極ガイド
装置及び電極誘導装置をワークの加工領域外へ退避させ
た状態を示す正面図である。FIG. 6 is a front view showing a state in which the electrode guide device and the electrode guiding device in the electric discharge machine according to the embodiment of the present invention are retracted to the outside of the machining area of the work.
６ ワーク 13 主軸 17 細穴加工用電極 23 支持ガイド 25 支持ガイド案内装置 27 誘導ガイド 29 誘導ブロック 31 誘導ガイド案内装置 34 電極マガジン 35 切欠き部 36 固定アーム 37 切欠き部 39 可動ブロック 40 エアシリンダ 41 支持ブロック 43 支承軸 6 Work 13 Spindle 17 Electrode for small hole machining 23 Support guide 25 Support guide guide device 27 Guide guide 29 Guide block 31 Guide guide guide device 34 Electrode magazine 35 Notch section 36 Fixed arm 37 Notch section 39 Movable block 40 Air cylinder 41 Support block 43 Bearing shaft
Claims (3)
クとの間で、前記細穴加工用電極にＺ軸方向の相対送り
を与えながらワークに細穴を加工する放電加工機におい
て、 前記ワークと近接して配置され前記細穴加工用電極を支
承する細穴を備えて、前記細穴加工用電極が前記ワーク
との間でＺ軸方向の相対移動をする際、前記細穴加工用
電極を案内、支持する電極ガイド装置と、 前記細穴加工用電極を前記電極ガイド装置の細穴へ挿入
する時、前記細穴加工用電極の先端部が前記電極ガイド
装置の細穴に挿入されるように前記細穴加工用電極を誘
導、支持する電極誘導装置と、を具備したことを特徴と
する放電加工機。1. An electric discharge machine for machining a fine hole in a work while applying relative feed in the Z-axis direction to the fine hole machining electrode between the fine hole machining electrode held by a head and the work, A fine hole is provided in the vicinity of the work to support the fine hole machining electrode, and when the fine hole machining electrode moves in the Z-axis direction relative to the work, the fine hole machining electrode is used. An electrode guide device for guiding and supporting an electrode, and when inserting the fine hole machining electrode into a fine hole of the electrode guide device, a tip portion of the fine hole machining electrode is inserted into the fine hole of the electrode guide device. And an electrode guide device for guiding and supporting the fine hole machining electrode.
方向に移動可能に設けられた第１移動手段と、 前記第１移動手段に設けられ、Ｚ軸方向と直交する方向
に移動可能な第２移動手段と、 前記第２移動手段に設けられ、前記細穴加工用電極を緩
く挾む挾み部材を含む挾み手段とからなり、前記細穴加
工用電極の前記電極ガイド装置の細穴への挿入時、前記
挾み手段が前記第２移動手段によりＺ軸方向と直交する
方向に移動して、前記細穴加工用電極の基部に位置決め
され、前記挾み部材で前記細穴加工用電極を緩く挾み、
前記ヘッドと前記電極ガイド装置との間で、前記第１移
動手段によりＺ軸方向と平行な方向に移動して、前記細
穴加工用電極の先端部を前記電極ガイド装置の細穴部に
位置合わせするように構成した請求項１記載の放電加工
機。2. The electrode guiding device is provided with a first moving means provided so as to be movable in a direction parallel to the Z-axis direction, and is provided with the first moving means, and is movable in a direction orthogonal to the Z-axis direction. A second moving means, and a picking means that is provided in the second moving means and includes a picking member that loosely holds the fine hole machining electrode, and the electrode guide device for the fine hole machining electrode is provided. At the time of insertion into the fine hole, the picking means is moved in the direction orthogonal to the Z-axis direction by the second moving means to be positioned at the base of the fine hole processing electrode, and the picking member is used to move the fine hole. Hold the machining electrode loosely,
The head is moved between the head and the electrode guide device in the direction parallel to the Z-axis direction by the first moving means to position the tip of the fine hole machining electrode in the fine hole portion of the electrode guide device. The electric discharge machine according to claim 1, wherein the electric discharge machine is configured to match.
装置を前記細穴加工用電極の挿入位置と、ワークの加工
領域外の退避位置との間で進退移動させる進退手段を有
してなる請求項１または２に記載の放電加工機。3. The electrode guide device includes advancing / retreating means for advancing / retreating the electrode guide device between an insertion position of the fine hole machining electrode and a retracted position outside a machining region of a work. The electric discharge machine according to Item 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7060149A JP2952339B2 (en) | 1995-02-24 | 1995-02-24 | Electric discharge machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7060149A JP2952339B2 (en) | 1995-02-24 | 1995-02-24 | Electric discharge machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08229747A true JPH08229747A (en) | 1996-09-10 |
| JP2952339B2 JP2952339B2 (en) | 1999-09-27 |
Family
ID=13133815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7060149A Expired - Lifetime JP2952339B2 (en) | 1995-02-24 | 1995-02-24 | Electric discharge machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2952339B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6396022B1 (en) | 1998-10-16 | 2002-05-28 | Astec Corporation Limted | Method and device for replacing pipe electrode for small-hole electric discharge machining and electrode magazine |
| US6784396B1 (en) | 2000-05-22 | 2004-08-31 | Mitsubishi Denki Kabushiki Kaisha | Electric discharge machine for making thin hole |
| EP1629921A1 (en) * | 2003-06-04 | 2006-03-01 | Makino Milling Machine Co. Ltd. | Electric discharge machine and machining method therefor |
| JPWO2006092837A1 (en) * | 2005-02-28 | 2008-07-24 | 三菱電機株式会社 | EDM machine |
| CN103551686A (en) * | 2013-10-25 | 2014-02-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Electrode guide device capable of changing electrode machining direction |
| WO2016199302A1 (en) * | 2015-06-12 | 2016-12-15 | 株式会社牧野フライス製作所 | Small-hole electric discharge machining machine |
-
1995
- 1995-02-24 JP JP7060149A patent/JP2952339B2/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6396022B1 (en) | 1998-10-16 | 2002-05-28 | Astec Corporation Limted | Method and device for replacing pipe electrode for small-hole electric discharge machining and electrode magazine |
| US6784396B1 (en) | 2000-05-22 | 2004-08-31 | Mitsubishi Denki Kabushiki Kaisha | Electric discharge machine for making thin hole |
| DE10085469B4 (en) * | 2000-05-22 | 2010-08-26 | Mitsubishi Denki K.K. | Electric discharge device for forming a small opening |
| EP1629921A1 (en) * | 2003-06-04 | 2006-03-01 | Makino Milling Machine Co. Ltd. | Electric discharge machine and machining method therefor |
| EP1629921A4 (en) * | 2003-06-04 | 2006-12-27 | Makino Milling Machine | Electric discharge machine and machining method therefor |
| US7329825B2 (en) | 2003-06-04 | 2008-02-12 | Makino Milling Machine Co., Ltd. | Electric discharge machine and machining method therefor |
| JPWO2006092837A1 (en) * | 2005-02-28 | 2008-07-24 | 三菱電機株式会社 | EDM machine |
| JP4572232B2 (en) * | 2005-02-28 | 2010-11-04 | 三菱電機株式会社 | EDM machine |
| CN103551686A (en) * | 2013-10-25 | 2014-02-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Electrode guide device capable of changing electrode machining direction |
| WO2016199302A1 (en) * | 2015-06-12 | 2016-12-15 | 株式会社牧野フライス製作所 | Small-hole electric discharge machining machine |
| JPWO2016199302A1 (en) * | 2015-06-12 | 2017-12-07 | 株式会社牧野フライス製作所 | Small hole electric discharge machine |
| EP3308893A4 (en) * | 2015-06-12 | 2019-01-16 | Makino Milling Machine Co., Ltd. | Small-hole electric discharge machining machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2952339B2 (en) | 1999-09-27 |
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