JP5396613B2 - Composite work machine for disk work and composite work machine for disk work - Google Patents

Composite work machine for disk work and composite work machine for disk work Download PDF

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JP5396613B2
JP5396613B2 JP2009243884A JP2009243884A JP5396613B2 JP 5396613 B2 JP5396613 B2 JP 5396613B2 JP 2009243884 A JP2009243884 A JP 2009243884A JP 2009243884 A JP2009243884 A JP 2009243884A JP 5396613 B2 JP5396613 B2 JP 5396613B2
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泰弘 八尾
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伊藤 幸男
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Description

本発明は、例えば、ジェットエンジンを構成するタービンブレードを支持するディスク(円板ワーク)の外周放電加工装置とその加工方法、更に円板ワークの切削加工を併せて行う複合放電加工装置とその加工方法に係わり、特に、円板ワークの外周放電加工を行うに際して、コンパクトな水槽で実施可能な円板ワークの外周放電加工装置とし、併せて円板ワークの外周面や両側面を加工する切削加工機能も併せ持つ複合放電加工装置に関するものである。The present invention relates to, for example, a peripheral electric discharge machining apparatus for a disk (disk work) that supports a turbine blade constituting a jet engine, a machining method thereof, and a combined electric discharge machining apparatus for machining a disk work together with the machining. It is related to the method, and in particular, when performing outer periphery electric discharge machining of a disk workpiece, it is used as a disk workpiece outer periphery electric discharge machining apparatus that can be carried out in a compact water tank, and also cuts the outer circumferential surface and both sides of the disk workpiece. The present invention relates to a composite electric discharge machining apparatus that also has functions.

近年、例えば、航空機による国際的な物流増大に対応する事と、対地球環境向上を図るための低燃費性の要求が高まり、航空機の機体軽量化と燃費改善が図られている。
その具体的方策として、ジェットエンジンを構成するタービンブレードを支持するディスク(円盤)の軽量化のための薄肉構造に伴う材料特有の歪みと機械加工で発生する歪みが加工精度低下を招き、困難性の高い切削加工における一層の精度向上が高まっている。これは、発電用ガスタービンのディスク加工においても同様な課題になっている。
In recent years, for example, there has been an increase in demands for low fuel consumption in order to cope with an increase in international logistics by aircraft and to improve the environment for the earth, and weight reduction and improvement in fuel consumption of aircraft have been attempted.
As a specific measure, the material-specific distortion and the distortion generated by machining due to the thin structure for weight reduction of the disk (disk) that supports the turbine blades that make up the jet engine cause a reduction in machining accuracy and are difficult. Further improvement in accuracy in high cutting processing is increasing. This is a similar problem in the disk processing of the gas turbine for power generation.

また、上記ディスク(円盤)は、極高温(1000℃〜)での使用となり、その材質はハイニッケル難削材の加工となり、無人加工化が遅れている。そして、上記ディスク(円盤)は、エンジンの高出力化で大型化(外径1000mm)の傾向にあり、肉薄軽量化により、外周面,側面,内面の切削加工を益々困難化している。そして、上記ディスク(円盤)の外周等のワイヤ放電加工時には、ディスク(円盤)全体を大型の水槽内にずぶ漬けしての放電加工を余儀なくされ、大型の設備機械が必要になり、加工コストアップの大きな要因になっている。Further, the disk (disk) is used at an extremely high temperature (1000 ° C. or more), and the material is processed to be a high nickel difficult-to-cut material, and unmanned processing is delayed. The disk (disk) tends to be large (outside diameter 1000 mm) due to high output of the engine, and it is becoming increasingly difficult to cut the outer peripheral surface, side surface, and inner surface due to the reduction in thickness and weight. When wire EDM is performed on the outer periphery of the above disk (disk), the entire disk (disk) must be immersed in a large water tank, which requires electric discharge machining, which requires a large facility machine and increases machining costs. It has become a big factor.

上記ディスク(円盤)の現状における製造工程は、先ず、素材となる円板(円盤)を鍛造により肉薄軽量化に適合するように成形される。この鍛造工程でディスクには、鍛造時の応力が残存して歪みを与えている。続く、旋盤加工は、図7に示すようにして実施されている。加工工程は、荒加工と仕上げ加工とに区分される。先ず、荒加工は、回転チャックCに把持されたディスク(円盤)Dにおいて、(1)基準面削り、(2)内外径端面削り、(3)反対側外径端面削りからなり、人手による段取り替えを余儀なくしていた。これは、自動化運転を不能としている最大の要因である。続く、仕上げ加工は、(4)内外径端面削り、(5)反対側外径端面削りからなる。しかしながら、図7(a)に示すように、上記薄肉円盤形状のディスクDは、加工中の切削抵抗により回転チャックCから飛び出す危険性が高く、そこで、クランプKを高トルクでディスクの側面に対し把持して押さえると、歪みを起こしてしまい、高速回転の加工が困難である(非特許文献。)。In the present manufacturing process of the disk (disk), first, a disk (disk) as a material is formed by forging so as to be suitable for reduction in thickness and weight. In this forging process, the stress during forging remains on the disk to cause distortion. The following lathe processing is performed as shown in FIG. The machining process is divided into rough machining and finishing machining. First, roughing consists of (1) reference surface cutting, (2) inner and outer diameter end surface cutting, and (3) opposite outer diameter end surface cutting on the disc (disk) D held by the rotary chuck C. I had to replace it. This is the biggest factor that makes automated operation impossible. The subsequent finishing process consists of (4) inner and outer diameter end face cutting, and (5) opposite outer diameter end face cutting. However, as shown in FIG. 7A, the thin disk-shaped disk D has a high risk of jumping out of the rotary chuck C due to cutting resistance during processing. If held and pressed, distortion occurs, and high-speed rotation processing is difficult (non-patent document).

また、上記大型化(外径1000mm)したディスク(円盤)Dの外周等のワイヤ放電加工は、ディスク(円盤)全体を大型の水槽内にずぶ漬けした放電加工を余儀なくされる。即ち、大型の設備機械となるワイヤ放電加工装置が必要になり、加工コストアップの大きな要因になる。その具体例として、浸漬型ワイヤカット放電加工機が提供されている。その構成は、ベッド上に固定された加工水を貯蔵する加工槽と、加工槽内に設けられ、ワイヤ下ガイドをX−Y方向に駆動する駆動手段と、コラムに支持され、ワイヤ下ガイドに対応してX−Y方向に駆動されるワイヤ上ガイドとを有するものとなる(例えば、特許文献1参照。)。Moreover, the wire electric discharge machining of the outer peripheral surface of the above-mentioned large-sized disk (disk 1000) D is obliged to perform electric discharge machining in which the entire disk (disk) is immersed in a large water tank. That is, a wire electrical discharge machining apparatus that is a large-sized equipment machine is required, which is a major factor in increasing the machining cost . As a specific example, an immersion type wire cut electric discharge machine is provided. The structure includes a processing tank for storing the processing water fixed on the bed, a driving means provided in the processing tank for driving the wire lower guide in the XY direction, supported by the column, and attached to the wire lower guide. Correspondingly, it has an on-wire guide driven in the XY direction (see, for example, Patent Document 1).

特開平8−118155号公報  JP-A-8-118155

本発明は、上記従来方式の旋盤加工機やワイヤ放電加工装置における数々の問題点である「工程数が多い、治具へのワーク交換作業を人力で行う、設備機械の大型化とそれによる設備費の増大、ランニングコストアップ、加工能率の低下等々」に鑑みてなされたものである。その目的は、円板ワークの外周放電加工を行うに際して、コンパクトな水槽で円板ワークの加工部のみを水槽内に浸けた実施を可能な円板ワークの外周放電加工装置とし、且つ切削加工機能も併せ持つ完全無人化運転を可能とするハイブリッド式複合加工装置とその加工方法を提供する。The present invention is a number of problems in the conventional lathe machine and wire electric discharge machine described above, “many processes for exchanging workpieces to jigs with a large number of processes, and an increase in the size of equipment and equipment resulting therefrom. This has been made in view of “increased cost, increased running cost, decreased machining efficiency, and the like”. The purpose of this is a disk work outer periphery electric discharge machining device that can perform the work by immersing only the work part of the disk work in the water tank with a compact water tank when performing the outer periphery electric discharge machining of the disk work, and the cutting function. In addition, a hybrid combined machining apparatus and a machining method thereof capable of fully unmanned operation are also provided.

本発明の請求項1による円板ワークの複合放電加工装置は、水平配置した回転出力軸と、この回転出力軸に装着されて旋回される円板ワークと、上記円板ワークの外周及び側面を切削加工すべくこの上方に配置した加工工具と、上記円板ワークの外周下面側に配置して該外周下面を液体に浸す水槽と、上記水槽内に配置して円板ワークの外周下面を放電加工するワイヤ放電加工部と、を具備したことを特徴とする。 A disc work composite electric discharge machining apparatus according to claim 1 of the present invention includes a horizontally disposed rotary output shaft, a disc work mounted on the rotary output shaft and swiveled, and an outer periphery and side surfaces of the disc work. A machining tool placed above this to be machined, a water tank placed on the outer peripheral lower surface side of the disk work and the outer peripheral lower surface immersed in liquid, and an outer peripheral lower surface of the disk work placed in the water tank. And a wire electric discharge machining section to be machined.

本発明の請求項2による円板ワークの複合放電加工方法は、水平配置した回転出力軸に装着されて旋回される円板ワークに対して、上記円板ワークの上方に配置した加工工具により円板ワークの外周及び側面を切削加工する一方、上記円板ワークの外周下面をこの下方に配置した水槽内の液体に浸すとともに、上記水槽内に配置したワイヤ放電加工部により円板ワークの外周下面を放電加工するとともに回転出力軸の回転駆動により円板ワークの外周囲を加工することを特徴とする。 According to a second aspect of the present invention, there is provided a composite electric discharge machining method for a disk work, wherein a circular work is arranged by a machining tool disposed above the disk work with respect to the disk work mounted on a rotating output shaft disposed horizontally and turned. While cutting the outer periphery and the side surface of the plate workpiece, the outer peripheral lower surface of the disk workpiece is immersed in the liquid in the water tank disposed below, and the outer lower surface of the disk work is disposed by the wire electric discharge machining portion disposed in the water tank. And the outer periphery of the disk workpiece is machined by rotating the rotary output shaft.

本発明の請求項3による円板ワークの複合放加工装置は、円板ワークの中心孔を基準内径仕上げするに際して円板ワークの外周を把持する円板チャックと、上記円板チャックの把持から解放した円板ワークを水平配置した回転出力軸の中間位置に装着する支持軸駆動体と、上記支持軸駆動体の回転により円板ワークの外周及び側面を旋削加工する旋削加工部と、上記円板ワークの側面を孔加工する孔加工部と、上記円板ワークの外周下面を液体に浸すべく円板ワークの下方に水槽を搬入する水槽移送部と、上記水槽移送部の水槽内に配置し回転出力軸の回転駆動により円板ワークの外周囲を放電加工するワイヤ放電加工部と、上記放電加工後の円板ワークの外周面を刃具で仕上加工する刃具加工部と、からなることを特徴とする。 According to a third aspect of the present invention, there is provided a disc workpiece combined machining apparatus for releasing a disc chuck for gripping an outer periphery of a disc workpiece when finishing a reference inner diameter of a center hole of the disc workpiece, and releasing the disc chuck. A support shaft driving body that mounts the disc work placed at an intermediate position of a rotation output shaft that is horizontally disposed, a turning portion that turns the outer periphery and side surfaces of the disc work by rotation of the support shaft driving body, and the disk A hole processing part for drilling a side surface of the work, a water tank transfer part for carrying a water tank below the disk work so as to immerse the outer peripheral lower surface of the disk work in a liquid, and a rotation within the water tank of the water tank transfer part. It comprises a wire electric discharge machining portion that performs electric discharge machining on the outer periphery of the disk workpiece by rotating the output shaft, and a blade tool machining portion that finishes the outer peripheral surface of the disk workpiece after the electric discharge machining with a blade tool. To do.

本発明の請求項4による円板ワークの複合放電加工方法は、円板チャックに把持した円板ワークの中心孔を基準内径仕上げする孔加工工程と、上記円板ワークを水平配置した回転出力軸の中間位置に装着する円板ワーク把持工程と、上記円板ワークの外周及び側面を旋削工具により旋削加工する全面加工工程と、上記円板ワークの側面を孔加工する孔加工工程と、上記円板ワークの外周下面を液体に浸すべく円板ワークの下方に水槽を搬入する搬入工程と、上記水槽内に配置したワイヤ放電加工部により回転出力軸の回転駆動により円板ワークの外周囲を放電加工する外周加工工程と、上記放電加工後の円板ワークの外周面を刃具で加工する仕上加工工程と、からなることを特徴とする。According to a fourth aspect of the present invention, there is provided a composite electric discharge machining method for a disk work, wherein a hole machining step for finishing a reference inner diameter of a center hole of the disk work gripped by a disk chuck, and a rotary output shaft in which the disk work is horizontally disposed. A disc workpiece gripping step to be mounted at an intermediate position of the disc workpiece, a full machining step of turning the outer periphery and side surface of the disc workpiece with a turning tool, a hole machining step of drilling a side surface of the disc workpiece, and the circle Discharge the outer periphery of the disk work by rotating the rotary output shaft by the loading process of carrying the water tank below the disk work to immerse the lower surface of the outer periphery of the plate work in the liquid, and the wire electric discharge machining part placed in the water tank. An outer peripheral machining step for machining and a finishing machining step for machining the outer circumferential surface of the disk work after the electric discharge machining with a cutting tool.

本発明の請求項1による円板ワークの複合放電加工装置によると、水平配置した回転出力軸に装着させた円板ワークに対して、この円板ワークの外周及び側面を切削加工する加工工具と、この円板ワークの外周下面側に水槽とワイヤ放電加工部とを備えたから、小さな水槽で加工装置のコンパクト化と大径円板ワークの外周面の放電加工を効率良く低コストに実行できるほか、円板ワークの外周及び側面の切削加工も一台の複合放電加工装置により同時に実行できる。According to the composite electric discharge machining apparatus for a disk workpiece according to claim 1 of the present invention, a machining tool for cutting the outer periphery and the side surface of the disk workpiece with respect to the disk workpiece mounted on the horizontally arranged rotation output shaft; Since the water tank and wire electric discharge machining part are provided on the outer peripheral lower surface side of this disk work, the machining equipment can be made compact and the electric discharge machining of the outer peripheral surface of the large-diameter disk work can be performed efficiently and at low cost with a small water tank. In addition, cutting of the outer periphery and the side surface of the disk workpiece can be simultaneously performed by a single composite electric discharge machining apparatus.

本発明の請求項2による円板ワークの複合放電加工方法によると、一台の複合放電加工装置により小さな水槽で加工装置のコンパクト化と大径円板ワークの外周面の放電加工を効率良く低コストに実行できるほか、円板ワークの外周及び側面の切削加工も同時に連続加工することが可能となる。According to the composite electric discharge machining method for a disk workpiece according to claim 2 of the present invention, the machining apparatus can be made compact and the electric discharge machining on the outer peripheral surface of the large-diameter disk workpiece can be efficiently and efficiently reduced with a single complex electric discharge machining apparatus. In addition to being able to be executed at a low cost, the outer periphery and side surface of the disk workpiece can be continuously processed simultaneously.

本発明の請求項3による円板ワークの複合放電加工装置によると、円板ワークの外周及び側面の切削加工と、円板ワークの外周下面側の水槽内のワイヤ放電加工部による放電加工とをワンチャッキングの無人自動化運転のもとに、旋削加工,孔加工から小さな水槽により大径円板ワークの外周面の放電加工までが効率良く低コストに複合的にできる。更に、複合放電加工装置のコンパクト化が図れる。According to the disc work composite electric discharge machining apparatus according to claim 3 of the present invention, the outer periphery and the side surface of the disc work are cut, and the electric discharge machining by the wire electric discharge machining section in the water tank on the outer peripheral lower surface side of the disc work. Under unattended automated operation of one chucking, everything from turning and drilling to electrical discharge machining of the outer peripheral surface of a large-diameter disk work can be efficiently and cost-effectively combined with a small water tank. Furthermore, the composite electric discharge machine can be made compact.

本発明の請求項4による円板ワークの複合放電加工方法によると、上記請求項による円板ワークの複合放電加工装置において、ワンチャッキングの無人自動化運転のもとに、旋削加工,孔加工と小さな水槽により大径円板ワークまでの外周面の放電加工が複合的に合理的に高効率に運転実施できる。According to the disc work composite electric discharge machining method according to claim 4 of the present invention, in the disc workpiece composite electric discharge machining apparatus according to claim 3 , turning and hole machining are performed under unattended automated operation of one chucking. With a small water tank, the electrical discharge machining of the outer peripheral surface up to the large-diameter disk work can be performed in a complex and reasonably efficient manner.

本発明の第1の実施の形態を示し、円板ワークの複合放電加工装置の斜視図と要部拡大図である。BRIEF DESCRIPTION OF THE DRAWINGS The 1st Embodiment of this invention is shown and it is a perspective view and principal part enlarged view of the composite electric discharge machining apparatus of a disk workpiece. 本発明の第1の実施の形態を示し、円板ワークの複合放電加工装置の断面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing of the composite electric discharge machining apparatus of the disk workpiece | work which shows the 1st Embodiment of this invention. 本発明の第1の実施の形態を示し、ワイヤ放電加工部の斜視図と断面図である。  The 1st Embodiment of this invention is shown and it is the perspective view and sectional drawing of a wire electric discharge machining part. 本発明の第1の実施の形態を示し、複合放電加工装置の加工工程図である。FIG. 2 is a machining process diagram of the composite electric discharge machining apparatus according to the first embodiment of the present invention. 本発明の第1の実施の形態を示し、両面同時加工の作用図である。  FIG. 3 is a diagram illustrating the first embodiment of the present invention and an operation diagram of simultaneous double-side processing. 本発明の第1の実施の形態を示し、同時穴明けの作用図である。  FIG. 6 is a diagram showing the first embodiment of the present invention and an operation diagram of simultaneous drilling. 従来技術を示し、円板ワークのクランプと加工手順の工程図である。  It is process drawing which shows a prior art and clamps a disk workpiece | work and a process sequence.

以下、図1乃至図6を参照して本発明の第1の実施の形態となる円板ワークの複合放電加工装置を説明する。Hereinafter, a disc work composite electric discharge machining apparatus according to a first embodiment of the present invention will be described with reference to FIGS.

本発明の円板ワークの外周放電加工装置及び円板ワークの複合放電加工装置とを合わせ持つように、多軸制御工作機械を基本構成とし、これを設計変更したもので、下記のようにその主たる構成要件からなる。まず、図1と図2に示すように、円板ワーク1の複合放電加工装置100は、円板ワーク1の中心孔1Aを基準内径仕上げに際して円板ワークの外周1Bを把持爪3Aで把持する円板チャック3と、上記円板チャックの把持から解放した円板ワーク1を水平配置した回転出力軸5の先端把持部5Aと、これに対向する円板チャック4の回転出力軸6の先端の把持部6Aで把持される。即ち、回転出力軸5,6の各先端部となる支持軸駆動体10の中間位置に装着される。尚、上記円板チャック4を支持する回転出力軸6の基部6Bは、基盤9上の移動台9Aの支持体11に回転可能に保持されている。これで、円板チャック4は、移動台9Aの進退移動で対向する円板チャック3及び円板ワーク1に対して接近離反する。上記回転出力軸6の軸心孔Pの後端は、油圧ユニットOUに繋がれていて、ここからの圧力油Oで把持部6Aが拡縮動作され、円板ワーク1の中心孔1Aを把持解放する。上記支持軸駆動体10は、駆動部KUの駆動軸2に連結する円板チャック3の回転により円板チャック3,4及び円板ワーク1を連動して回転させる。The multi-axis control machine tool has a basic configuration, and the design has been changed so that the outer peripheral electric discharge machining apparatus for the disk work and the complex electric discharge machining apparatus for the disk work of the present invention are combined. Consists of the main components. First, as shown in FIGS. 1 and 2 , the composite electric discharge machining apparatus 100 for the disk workpiece 1 grips the outer periphery 1B of the disk workpiece with the gripping claws 3A when the center hole 1A of the disk workpiece 1 is finished with the reference inner diameter. The tip chucking portion 5A of the rotary output shaft 5 in which the disc chuck 3 and the disc workpiece 1 released from the gripping of the disc chuck are horizontally arranged, and the tip of the rotary output shaft 6 of the disc chuck 4 opposed thereto are arranged. It is gripped by the gripping part 6A. That is, it is mounted at an intermediate position of the support shaft driving body 10 which is the tip of each of the rotation output shafts 5 and 6. The base 6B of the rotary output shaft 6 that supports the disc chuck 4 is rotatably held by the support 11 of the moving base 9A on the base 9. As a result, the disk chuck 4 approaches and separates from the disk chuck 3 and the disk workpiece 1 facing each other as the moving table 9A moves forward and backward. The rear end of the shaft hole P of the rotary output shaft 6 is connected to the hydraulic unit OU, and the gripping portion 6A is expanded / contracted by the pressure oil O from here, so that the center hole 1A of the disc work 1 is gripped . release. The support shaft driver 10 rotates the disk chucks 3 and 4 and the disk workpiece 1 in conjunction with each other by the rotation of the disk chuck 3 connected to the drive shaft 2 of the drive unit KU.

更に、上記円板ワーク1の外周1B及び側面1C,1Dを旋削加工する旋削加工部15と、上記円板ワークの側面1C,1Dを孔加工する孔加工部17と、上記円板ワーク1の外周下面1Bを液体Wに浸すべく円板ワークの下方に水槽20を搬入する水槽移送部22と、上記水槽移送部22の水槽内に配置し回転出力軸5の回転駆動により円板ワーク1の外周囲1Bを荒溝加工するワイヤ放電加工部25と、上記放電加工後の円板ワーク1の外周面1Bを刃具加工工具CHで仕上げ加工する刃具加工部27と、からなる。尚、ワイヤ放電加工部25細部構成は、図3に示すように、水槽20内の液体Wに浸された円板ワーク1の外周囲1Bの両側にワイヤYの供給ヘッド31と受取ヘッド32とが対向配置され、ワイヤYの中間部を円板ワーク1の外周面1Bに接近させ、高圧電圧をワイヤYと外周面1B間に付与して外周面1Bを荒溝加工する。尚、ワイヤYは、供給側のプーリー33を経由して供給ヘッド31に至り、受取ヘッド32からプーリ−34を経由して排出し集積部(図示なし)に集められる。また、供給ヘッド31内には、放電加工で生じた金属粉塵を排除する高圧噴射水ノズル(図示なし)を備えている。Further, the turning part 15 for turning the outer periphery 1B and the side faces 1C and 1D of the disc work 1, the hole machining part 17 for drilling the side faces 1C and 1D of the disc work, and the disc work 1 In order to immerse the outer peripheral lower surface 1 </ b> B in the liquid W, a water tank transfer part 22 that carries the water tank 20 below the disk work, and a disk tank 1 that is disposed in the water tank of the water tank transfer part 22 and that is rotated by the rotation output shaft 5. It comprises a wire electric discharge machining section 25 for rough-grooving the outer periphery 1B and a blade tool machining section 27 for finishing the outer peripheral surface 1B of the disk work 1 after the electric discharge machining with a blade and a machining tool CH. As shown in FIG. 3, the detailed configuration of the wire electric discharge machining unit 25 includes a wire Y supply head 31 and a receiving head 32 on both sides of the outer periphery 1 </ b> B of the disk workpiece 1 immersed in the liquid W in the water tank 20. Are arranged opposite to each other, the intermediate portion of the wire Y is brought close to the outer peripheral surface 1B of the disk workpiece 1, and a high voltage is applied between the wire Y and the outer peripheral surface 1B to roughen the outer peripheral surface 1B. The wire Y reaches the supply head 31 via the pulley 33 on the supply side, is discharged from the receiving head 32 via the pulley 34, and is collected in a collecting unit (not shown). Further, the supply head 31 is provided with a high-pressure jet water nozzle (not shown) for removing metal dust generated by electric discharge machining.

続いて、上記円板ワーク1の複合放電加工装置100の機能作用を説明する。図1〜図4に見るように、複合放電加工装置は、先ず、円板ワークの外周1Bを円板チャック3で把持し、円板ワーク1の中心孔1Aが基準内径仕上げされる。その後、図1と図2に示すように、円板ワーク1の中心孔1Aは、対向する円板チャック3の回転出力軸5の先端把持部5Aと、これに対向する円板チャック4の回転出力軸6の先端の把持部6Aで把持される。即ち、回転出力軸5,6の各先端部となる支持軸駆動体10の中間位置に装着される。そして、円板ワーク1の外周1B及び側面1C,1Dが旋削加工部15により切削加工し、図6に示すように、上記孔加工部17による円板ワークの側面1C,1Dの孔加工が行われる。更に、円板ワークの外周下面側の水槽内のワイヤ放電加工部25による荒溝加工、そして、再び外周の荒溝加工の溝仕上加工が刃具加工部27に取り付けた総形カッターで行われる。上記円板ワークは、両円板チャック3,4でワンチャッキングのもとに、旋削加工孔加工から小さな水槽による大径な円板ワークの外周面の放電加工及び外周面の外形仕上加工が複合的に行われる。Next, functions and operations of the composite electric discharge machining apparatus 100 for the disc work 1 will be described. As shown in FIGS. 1 to 4, the composite electric discharge machining apparatus first holds the outer periphery 1 </ b> B of the disk workpiece with the disk chuck 3, and the center hole 1 </ b> A of the disk workpiece 1 is finished with the reference inner diameter. Thereafter, as shown in FIGS. 1 and 2, the center hole 1 </ b> A of the disk workpiece 1 is rotated by the tip gripping portion 5 </ b> A of the rotation output shaft 5 of the opposing disk chuck 3 and the rotation of the disk chuck 4 facing this. It is gripped by the gripping portion 6A at the tip of the output shaft 6. That is, it is mounted at an intermediate position of the support shaft driving body 10 which is the tip of each of the rotation output shafts 5 and 6. Then, the outer periphery 1B and the side surfaces 1C and 1D of the disk work 1 are cut by the turning part 15 , and the hole work part 17 performs the hole machining of the side faces 1C and 1D of the disk work 17 as shown in FIG. Is called. Further, rough grooving by the wire electric discharge machining section 25 in the water tank on the outer peripheral lower surface side of the disk work, and groove finishing of the outer peripheral rough grooving is again performed by a general cutter attached to the cutting tool processing section 27. The above disk work is one-chucking with both disk chucks 3 and 4, and from turning and hole machining to electric discharge machining of the outer peripheral surface of a large-diameter disk work and finishing of the outer peripheral surface with a small water tank. Is done in a complex manner.

上記複合放電加工装置100による複合加工の工程手順を、図4〜図6により説明する。先ず、円板チャックに把持した円板ワークの中心孔を基準内径仕上げする孔加工工程(A)と、上記円板ワークを水平配置した回転出力軸5,6の中間位置に装着する円板ワーク把持工程(B)と、上記円板ワークの外周1B及び側面1C,1Dを旋削工具により旋削加工する全面加工工程(C)と、上記円板ワークの側面を孔加工する孔加工工程(D)と、上記円板ワークの外周下面を液体に浸すべく円板ワークの下方に水槽20を搬入する搬入工程(E)及び上記水槽内に配置したワイヤ放電加工部25により回転出力軸5,6の回転駆動により円板ワークの外周囲に溝荒加工をワイヤ放電加工する外周加工工程(E)と、上記放電加工後の円板ワークの外周面を刃具(総形カッター)で溝仕上げ加工する仕上加工工程(F)と、からなる。尚、全面加工工程(C)は、図5に示すように、円板ワーク1の外周1B及び側面1C,1Dを旋削加工部15の旋削工具により旋削加工される。この時、両側面の同時加工が可能で、加工時間が半減し、側面方向への加工撓みが解消される。孔加工工程(D)とワイヤ放電加工による外周加工工程(E)は、図6に示すように、円板ワーク1の側面1C,1Dが孔加工部17で行われ、円板ワーク1の外周1Bの荒溝加工がワイヤ放電加工部25により行われる。この時、孔明けと放電加工とが同時に実施されるから加工能率が倍増する。
しかして、上記円板ワークは、ワンチャッキングの無人自動化運転のもとに、旋削加工孔加工と、小さな水槽20により大径円板ワーク1の外周面の放電加工と、その仕上げ加工が複合的に合理的に行われる。且つ、この加工は、コンパクトな複合放電加工装置100のもとに実施される。
A process procedure of composite machining by the composite electrical discharge machining apparatus 100 will be described with reference to FIGS. First, a hole machining step (A) for finishing a reference inner diameter of the center hole of the disk workpiece 1 held by the disk chuck, and a disk mounted at an intermediate position between the rotary output shafts 5 and 6 in which the disk workpiece is horizontally disposed. A workpiece gripping step (B), a full machining step (C) for turning the outer periphery 1B and side surfaces 1C and 1D of the disk workpiece with a turning tool, and a hole drilling step (D for drilling a side surface of the disc workpiece (D) ), A loading step (E) for loading the water tank 20 below the disk work so as to immerse the outer peripheral lower surface of the disk work in the liquid W , and a rotation output shaft 5 by the wire electric discharge machining unit 25 disposed in the water tank . The outer peripheral machining step (E), in which the wire roughing is performed on the outer periphery of the disk workpiece by the rotational drive of No. 6 , and the outer peripheral surface of the disk workpiece after the electric discharge machining is finished with a cutting tool (total cutter). And finishing process (F) It made. In the entire surface machining step (C), as shown in FIG. 5, the outer periphery 1 </ b> B and the side surfaces 1 </ b> C and 1 </ b> D of the disk work 1 are turned by the turning tool of the turning portion 15. At this time, both side surfaces can be processed simultaneously, the processing time is reduced by half, and the processing deflection in the side surface direction is eliminated. As shown in FIG. 6, the hole machining step (D) and the outer periphery machining step (E) by wire electric discharge machining are performed on the side surfaces 1 </ b> C and 1 </ b> D of the disk workpiece 1 at the hole machining portion 17, The 1B rough groove machining is performed by the wire electric discharge machining section 25. At this time, since drilling and electric discharge machining are performed simultaneously, the machining efficiency is doubled.
Thus, the circular plate work, under the unmanned automated operation of the one chucking, turning, and hole processing, and electrical discharge machining of the outer circumferential surface of the large diameter disc workpiece 1 by a small aquarium 20, the finishing Is done rationally in a complex way. In addition, this machining is performed under the compact composite electric discharge machining apparatus 100.

尚、本発明の円板ワークの複合放電加工装置100は、上記第1の実施の形態における構成に限定されず、その発明の要旨内での各部の各種の設計変更が自由にできる。例えば、複合加工機能を分割させ、ワイヤ放電加工部だけの単一機能とした状態での第2の実施の形態の使用も可能である。具体的には、放電加工機能のみを備えた円板ワーク1の外周放電加工装置とする。即ち、上記複合放電加工装置100において、水平配置した回転出力軸5と、この回転出力軸の先端に装着させた円板ワーク1と、上記円板ワークの外周下面側に配置した水槽20と、上記水槽内に配置したワイヤ放電加工部25と、だけを備えたものとする。即ち、円板ワーク1の把持を片側の円板チャック3の回転出力軸5の先端把持部5Aにだけに行わせた構成とする。勿論、円板ワーク1の把持を両側の円板チャック3,4の回転出力軸5,6の中間部で行わせた構成としても良い。In addition, the composite electric discharge machining apparatus 100 for the disk workpiece of the present invention is not limited to the configuration in the first embodiment, and various design changes of each part within the gist of the invention can be freely made. For example, it is possible to use the second embodiment in a state where the combined machining function is divided into a single function of only the wire electric discharge machining portion . Specifically, it is an outer periphery electric discharge machining apparatus for the disk workpiece 1 having only an electric discharge machining function. That is, in the composite electric discharge machining apparatus 100, the rotation output shaft 5 disposed horizontally, the disk work 1 attached to the tip of the rotation output shaft, the water tank 20 disposed on the outer peripheral lower surface side of the disk work, It is assumed that only the wire electric discharge machining portion 25 arranged in the water tank is provided. That is, the disc workpiece 1 is gripped only by the tip gripping portion 5A of the rotation output shaft 5 of the disc chuck 3 on one side . Needless to say, the disc work 1 may be gripped by the intermediate portions of the rotation output shafts 5 and 6 of the disc chucks 3 and 4 on both sides.

これで、円板ワーク1の外周下面をこの下方に配置した水槽20内の液体Wに浸すとともに、上記水槽内に配置したワイヤ放電加工部25により放電加工するとともに回転出力軸5の回転駆動により旋回させるから、円板ワーク1の外周1Bの下面を、この下方に配置した水槽内の液体に浸すとともに、水槽内のワイヤ放電加工部25により放電加工する。これにより、小さな水槽により加工装置のコンパクト化と大径円板ワークの外周面の放電加工を実行できる効果が発揮される。As a result, the outer peripheral lower surface of the disk work 1 is immersed in the liquid W in the water tank 20 disposed below, and is subjected to electric discharge machining by the wire electric discharge machining unit 25 disposed in the water tank and by the rotational drive of the rotary output shaft 5. Since it is swiveled, the lower surface of the outer periphery 1B of the disk workpiece 1 is immersed in the liquid in the water tank disposed below, and is subjected to electric discharge machining by the wire electric discharge machining section 25 in the water tank. Thereby, the effect which can carry out the compacting of a processing apparatus and the electrical discharge machining of the outer peripheral surface of a large diameter disc workpiece with a small water tank is exhibited.

上記円板ワークの複合放電加工装置100による加工方法は、水平配置した回転出力軸5に装着された円板ワーク1に対して、この円板ワークの外周下面をこの下方に配置した水槽20内の液体Wに浸すとともに、上記水槽内に配置したワイヤ放電加工部25により放電加工するとともに回転出力軸5の回転駆動により円板ワーク1の外周囲を連続加工できる。The above-mentioned machining method by the composite electric discharge machining apparatus 100 for the disk work is performed in the water tank 20 in which the outer peripheral lower surface of the disk work is disposed below the disk work 1 mounted on the rotation output shaft 5 arranged horizontally. In addition, the outer periphery of the disk workpiece 1 can be continuously machined by rotating the rotary output shaft 5 while performing electric discharge machining by the wire electric discharge machining unit 25 disposed in the water tank.

また、円板ワークの複合放電加工装置100において、放電加工機能のほか最小限の切削機能のみを備えた第3の実施の形態となる円板ワークの複合放電加工装置とする。即ち、水平配置した回転出力軸5と、この回転出力軸5に装着させた円板ワーク1と、上記円板ワークの外周1B及び側面1C,1Dだけを切削加工する旋削加工部15と、上記円板ワークの外周下面側に配置した水槽20と、上記水槽内に配置したワイヤ放電加工部25とを備える。これにより、円板ワーク1の把持を片側の円板チャック3の回転出力軸5の先端把持部5Aにだけに行わせた構成とする。勿論、円板ワーク1の把持を両側の円板チャック3,4の回転出力軸5,6の中間部で行わせた構成としても良い。Further, in the composite electrical discharge machining apparatus 100 of the disc workpiece, and electric discharge machining features of another minimal cutting work only composite electric discharge machining apparatus of a disc workpiece comprising a third embodiment having the. That is, the rotation output shaft 5 arranged horizontally, the disc work 1 mounted on the rotation output shaft 5, the turning portion 15 for cutting only the outer periphery 1B and the side surfaces 1C and 1D of the disc work, The water tank 20 arrange | positioned at the outer peripheral lower surface side of a disc workpiece | work, and the wire electric discharge machining part 25 arrange | positioned in the said water tank are provided. Thus, a structure in which to perform the gripping of the disc workpiece 1 only the distal grip portion 5A of the rotating output shaft 5 of the one side of the disc chuck 3. Needless to say, the disc work 1 may be gripped by the intermediate portions of the rotation output shafts 5 and 6 of the disc chucks 3 and 4 on both sides.

上記第3の実施の形態となる円板ワークの複合放電加工装置において、円板ワークの外周及び側面の切削加工と、円板ワークの外周下面側の小さな水槽内のワイヤ放電加工部による放電加工と、その後の外形仕上加工が加工装置のもとに、大径円板ワークの外周面の放電加工を含めて無人自動化運転のもとに実行される。
また、上記円板ワークの複合放電加工装置による加工方法は、円板ワークの外周及び側面の切削加工と、円板ワークの外周下面側での放電加工と、その後の外形仕上加工が無人自動化運転のもとに複合的に実施される。
In the composite electric discharge machining apparatus for a disk workpiece according to the third embodiment, the outer periphery and side surfaces of the disk workpiece are cut, and the electric discharge machining by the wire electric discharge machining section in the small water tank on the outer peripheral lower surface side of the disk workpiece. Then, the subsequent external finishing is performed under unmanned automated operation including electrical discharge machining of the outer peripheral surface of the large-diameter disk workpiece under the machining apparatus.
In addition, the machining method of the above-mentioned disc work by the composite electric discharge machining apparatus is the unmanned automated operation of cutting the outer periphery and side surface of the disc workpiece, electric discharge machining on the outer circumference lower surface side of the disc workpiece, and subsequent external finishing. It is carried out in a complex manner.

以上のように、本発明の実施の形態となる円板ワークの複合放電加工装置100及びその加工方法によれば、下記の効果が奏せられる。
先ず、円板ワーク1の複合放電加工装置によると、円板ワーク1の外周1B及び側面1C,1Dの切削加工と、円板ワーク1の外周1Bの下面側の水槽20内のワイヤ放電加工部25による放電加工とをワンチャッキングのもとに無人自動化されて、旋削加工孔加工をはじめとして、小さな水槽により大径円板ワークの外周面の放電加工が複合的にできる。従って、複合放電加工装置のコンパクト化が図れて、設備機械費の低減と加工能率が飛躍的に向上する。
As described above, according to the composite electrical discharge machining apparatus 100 for a disk workpiece and the machining method thereof according to the embodiment of the present invention, the following effects can be obtained.
First, according to the composite electric discharge machining apparatus for the disk workpiece 1, cutting of the outer periphery 1B and the side surfaces 1C and 1D of the disk workpiece 1 and the wire electric discharge machining section in the water tank 20 on the lower surface side of the outer periphery 1B of the disk workpiece 1 are performed. to the original one-chucking a discharge machining by 25 is unmanned automated, turning, including the hole machining, electric discharge machining of the outer peripheral surface of the large diameter disk workpiece can be in a complex manner by a small aquarium. Therefore, the composite electric discharge machining apparatus can be made compact, and the equipment machine cost can be reduced and the machining efficiency can be greatly improved.

本発明の円板ワークの複合放電加工方法によると、ワンチャッキングのもとに無人自動化されて、旋削加工孔加工をはじめとして、小さな水槽20により大径円板ワークの外周面の放電加工が複合的に合理的に高効率に運転実施できる。更には、コンパクトな複合放電加工装置100により、コストダウンが図れる合理的な複合加工が実行できる。 According to the composite electric discharge machining method of the disk work of the present invention, unmanned automation is performed under one chucking, and the electric discharge machining of the outer peripheral surface of the large-diameter disk work is performed by a small water tank 20 including turning and drilling . However, it is possible to carry out operation in a complex and reasonably high efficiency. Furthermore, rational complex machining that can reduce costs can be executed by the compact complex electric discharge machining apparatus 100.

本発明は、その対象物について、ジェットエンジンを構成する大型タービンブレードを支持する大型ディスク(円板ワーク)の実施例で説明したものであるが、様々な用途に使用される各種外径寸法のディスク(円板ワーク)への適用が可能である。The present invention has been described in the embodiment of the large disk (disk work) for supporting the large turbine blade constituting the jet engine with respect to the object, but various outer diameter dimensions used for various applications. Applicable to disc (disk work).

1 円板ワーク
1A 中心孔
1B 外周
1C,1D 側面
2 駆動軸
3A 把持爪
3 円板チャック
4 円板チャック
5 回転出力軸
5A 先端把持部
6 回転出力軸
6A 把持部
6B 基部
9 基盤
9A 移動台
10 支持軸駆動体
11 支持体
15 旋削加工部
17 孔加工部
20 水槽
22 水槽移送部
25 ワイヤ放電加工部
27 刃具加工部
30 供給ヘッド
32 受取ヘッド
33 プーリー
34 プーリー
100 複合放電加工装置
(A) 孔加工工程
(B) 円板ワーク把持工程
(C) 全面加工工程
(D) 孔加工工程
(E) 搬入工程
(F) 仕上加工工程
CH 刃具加工工具
KU 駆動部
P 軸心孔
OU 油圧ユニット
O 圧力油
Y ワイヤ
W 液体
DESCRIPTION OF SYMBOLS 1 Disc work 1A Center hole 1B Outer periphery 1C, 1D Side surface 2 Drive shaft 3A Grip claw 3 Disc chuck 4 Disc chuck 5 Rotation output shaft 5A Tip gripping part 6 Rotation output shaft 6A Grasping part 6B Base 9 Base 9A Moving stand 10 Support shaft driver 11 Support 15 Turning part 17 Hole processing part 20 Water tank 22 Water tank transfer part 25 Wire electric discharge processing part 27 Cutting tool processing part 30 Supply head 32 Receiving head 33 Pulley 34 Pulley 100 Compound electric discharge machine (A) Hole processing Step (B) Disc work gripping step (C) Whole surface processing step (D) Hole processing step (E) Loading step (F) Finishing processing step CH Cutting tool , processing tool KU Drive unit P Shaft hole OU Hydraulic unit O Pressure oil Y wire W liquid

Claims (4)

水平配置した回転出力軸と、この回転出力軸に装着されて旋回される円板ワークと、上記円板ワークの外周及び側面を切削加工すべくこの上方に配置した加工工具と、上記円板ワークの外周下面側に配置して該外周下面を液体に浸す水槽と、上記水槽内に配置して円板ワークの外周下面を放電加工するワイヤ放電加工部と、を具備したことを特徴とする円板ワークの複合放電加工装置。  Horizontally arranged rotary output shaft, a disc work mounted on the rotary output shaft and swiveled, a processing tool arranged above to cut the outer periphery and side surface of the disc workpiece, and the disc workpiece A water tank that is disposed on the outer peripheral lower surface side and immerses the outer peripheral lower surface in a liquid, and a wire electric discharge machining portion that is disposed in the water tank and performs electric discharge machining on the outer peripheral lower surface of the disk workpiece. Composite electrical discharge machining equipment for plate work. 水平配置した回転出力軸に装着されて旋回される円板ワークに対して、上記円板ワークの上方に配置した加工工具により円板ワークの外周及び側面を切削加工する一方、上記円板ワークの外周下面をこの下方に配置した水槽内の液体に浸すとともに、上記水槽内に配置したワイヤ放電加工部により円板ワークの外周下面を放電加工するとともに回転出力軸の回転駆動により円板ワークの外周囲を加工することを特徴とする円板ワークの複合放電加工方法。  For the disk work that is mounted on the rotation output shaft that is horizontally disposed and turned, the outer periphery and the side surface of the disk work are cut by the processing tool disposed above the disk work, while the disk work The outer peripheral lower surface is immersed in the liquid in the water tank arranged below, and the outer peripheral lower surface of the disk work is discharged by the wire electric discharge machining portion arranged in the water tank, and the disk work is removed from the disk work by rotating the rotary output shaft. A composite electric discharge machining method for a disk workpiece characterized by machining the periphery. 円板ワークの中心孔を基準内径仕上げするに際して円板ワークの外周を把持する円板チャックと、上記円板チャックの把持から解放した円板ワークを水平配置した回転出力軸の中間位置に装着する支持軸駆動体と、上記支持軸駆動体の回転により円板ワークの外周及び側面を旋削加工する旋削加工部と、上記円板ワークの側面を孔加工する孔加工部と、上記円板ワークの外周下面を液体に浸すべく円板ワークの下方に水槽を搬入する水槽移送部と、上記水槽移送部の水槽内に配置し回転出力軸の回転駆動により円板ワークの外周囲を放電加工するワイヤ放電加工部と、上記放電加工後の円板ワークの外周面を刃具で仕上加工する刃具加工部と、からなることを特徴とする円板ワークの複合放加工装置。  Install the disc chuck that grips the outer periphery of the disc workpiece when finishing the reference inner diameter of the center hole of the disc workpiece, and the disc workpiece released from the gripping of the disc chuck at the intermediate position of the horizontally arranged rotation output shaft A support shaft driving body, a turning processing portion for turning an outer periphery and a side surface of the disc work by rotation of the support shaft driving body, a hole processing portion for drilling a side surface of the disc work, and the disc work A water tank transfer unit that carries a water tank below the disk work so that the outer peripheral lower surface is immersed in the liquid, and a wire that is disposed in the water tank of the water tank transfer part and that discharge-processes the outer periphery of the disk work by rotating the rotation output shaft A composite workpiece machining apparatus for a disk workpiece, comprising: an electric discharge machining section; and a blade tool machining section for finishing the outer peripheral surface of the disk workpiece after the electric discharge machining with a blade tool. 円板チャックに把持した円板ワークの中心孔を基準内径仕上げする孔加工工程と、上記円板ワークを水平配置した回転出力軸の中間位置に装着する円板ワーク把持工程と、上記円板ワークの外周及び側面を旋削工具により旋削加工する全面加工工程と、上記円板ワークの側面を孔加工する孔加工工程と、上記円板ワークの外周下面を液体に浸すべく円板ワークの下方に水槽を搬入する搬入工程と、上記水槽内に配置したワイヤ放電加工部により回転出力軸の回転駆動により円板ワークの外周囲を放電加工する外周加工工程と、上記放電加工後の円板ワークの外周面を刃具で加工する仕上加工工程と、からなることを特徴とする円板ワークの複合放電加工方法。A hole machining step for finishing a reference inner diameter of a center hole of a disc workpiece gripped by a disc chuck, a disc workpiece gripping step for mounting the disc workpiece at an intermediate position of a rotation output shaft horizontally arranged, and the disc workpiece A whole surface machining step for turning the outer periphery and side surface of the disk workpiece with a turning tool, a hole machining step for drilling a side surface of the disk workpiece, and a water tank below the disk workpiece so as to immerse the outer circumferential lower surface of the disk workpiece in a liquid An outer periphery machining step in which the outer periphery of the disk workpiece is subjected to electric discharge machining by the rotational drive of the rotary output shaft by the wire electric discharge machining portion arranged in the water tank, and the outer circumference of the disk workpiece after the electric discharge machining. And a finish machining step for machining a surface with a cutting tool.
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