JPS6361129B2 - - Google Patents
Info
- Publication number
- JPS6361129B2 JPS6361129B2 JP17523684A JP17523684A JPS6361129B2 JP S6361129 B2 JPS6361129 B2 JP S6361129B2 JP 17523684 A JP17523684 A JP 17523684A JP 17523684 A JP17523684 A JP 17523684A JP S6361129 B2 JPS6361129 B2 JP S6361129B2
- Authority
- JP
- Japan
- Prior art keywords
- roll
- power supply
- power
- workpiece
- supply device
- 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000007514 turning Methods 0.000 description 8
- 238000009760 electrical discharge machining Methods 0.000 description 7
- 238000003754 machining Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
- B23H11/006—Electrical contacts or wires
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、ロール状をなした被加工物を回転さ
せながら前記被加工物の表面を放電加する際の被
加工物への給電装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a power supply device for a roll-shaped workpiece when electrical discharge is applied to the surface of the workpiece while rotating the workpiece. It is.
以下、説明をロール状被加工物（以下ロールと
略称する）の外周面を放電により梨地状に仕上げ
るための放電加工機の場合を例に挙げて説明す
る。
The explanation will be given below using an example of an electric discharge machine for finishing the outer circumferential surface of a roll-shaped workpiece (hereinafter simply referred to as a roll) into a matte finish by electric discharge.
従来、例えば鋼帯圧延用ロール、特に冷間圧延
ロールの表面を梨地状に仕上げるには、シヨツト
グリツトなどの硬い金属粒を研磨したロール面に
噴射して、ロール表面に圧痕をつける方法が採ら
れていた。しかし、近年この種の加工を放電加工
により行うことが試みられている。放電加工は周
知のように、電極と被加工物間の狭い加工間〓に
例えばケロシンのような絶縁性の液体を介在さ
せ、電極と被加工物間に周期的にパルス電圧を印
加して放電させることにより、被加工物表面を加
工する方法である。このような放電加工をロール
表面で繰返しながらロールを円周方向に回転し、
同時に電極をロール軸方向に漸次移動してゆけば
ロール表面は連続的にスパイラル状の梨地加工を
受け、ロール表面を放電痕で被うことができる。
これが放電加工を利用したロールの表面に一様に
梨地面をつける方法である。 Conventionally, in order to give the surface of steel strip rolling rolls, especially cold rolling rolls, a satin finish, a method has been adopted in which hard metal particles such as shot grit are sprayed onto the polished roll surface to create impressions on the roll surface. was. However, in recent years, attempts have been made to perform this type of machining by electrical discharge machining. As is well known, electric discharge machining involves interposing an insulating liquid such as kerosene between the electrode and the workpiece, and periodically applying a pulse voltage between the electrode and the workpiece to generate an electrical discharge. This is a method of processing the surface of a workpiece by While repeating this electrical discharge machining on the roll surface, the roll is rotated in the circumferential direction,
At the same time, if the electrode is gradually moved in the direction of the roll axis, the roll surface is continuously subjected to a spiral satin finish, and the roll surface can be covered with discharge marks.
This is a method of uniformly applying a satin finish to the surface of a roll using electrical discharge machining.
このように得られた放電加工による梨地面は、
金属粒噴射による機械的な圧痕に比べ凹凸の差が
大きく、かつ形状もはるかに整つているばかりで
なく、その形状がロールの製造方法や硬度に左右
されず、またロール表面の金属組織が放電により
硬化し、圧延ロールとして最適であるなど多くの
長所を有している。 The pear-shaped surface obtained by electrical discharge machining is
Compared to mechanical indentations made by metal particle jetting, the difference in unevenness is larger and the shape is much more uniform.The shape is not affected by the manufacturing method or hardness of the roll, and the metal structure on the roll surface is free from electrical discharge. It has many advantages, such as being hardened and suitable for use as rolling rolls.
しかして、従来この種の放電加工機に用いられ
ている給電装置には、第１図及び第２図に示す如
きものであつた。即ち、図における符号１は被加
工物のロールであり、２は前記ロール１を水平に
支持する軸受、３は給電装置であつて、前記ロー
ル１の非駆動側端部を支持する加工機本体２３の
軸部に装着されており、そのロール１との接触は
ブラシ４で行われるようにしてある。５は前記ロ
ール１の駆動側端部を駆動するために削つた平行
面１′に嵌合、装着される回し金、６は前記回し
金５に回転を与えるための一対の回し棒であつ
て、加工機本体２３の軸部位置に垂直方向に駆動
によつて回転可能に固定された円板７に水平方向
に適当な間隔で直接植設されている。８は加工用
電源であり、前記給電装置３との間はフイダー９
で結合されている。 However, the power supply device conventionally used in this type of electric discharge machine is as shown in FIGS. 1 and 2. That is, the reference numeral 1 in the figure is a roll of the workpiece, 2 is a bearing that horizontally supports the roll 1, and 3 is a power supply device, which is a processing machine main body that supports the non-driving end of the roll 1. 23, and its contact with the roll 1 is made by a brush 4. Reference numeral 5 denotes a rotary ring which is fitted and attached to the parallel surface 1' cut in order to drive the driving side end of the roll 1, and 6 is a pair of rotary rods for imparting rotation to the rotary ring 5. , are directly implanted at appropriate intervals in the horizontal direction on a disk 7 which is rotatably fixed to the shaft portion of the processing machine main body 23 by driving in the vertical direction. 8 is a processing power source, and a feeder 9 is connected between it and the power supply device 3.
are combined with.
従来提案されている給電装置は前記のように構
成されており、次にその動作について説明する
と、ロール１は軸受２により回転可能に支承され
ており、図示を省略してあるロール駆動装置によ
り円板７、回し棒６、回し金５を介して回転駆動
される。この回転されているロール１の外周面に
沿つて電極（図示省略）を至近間隔保持させて移
動させることにより放電を発生させ、放電加工す
ることによつて一定面粗度の梨地面を得るもので
あるが、この場合の放電加工電流は、加工用電源
８に接続したフイダー９と給電装置３、ブラシ４
を介してロール１の軸部端面へ給電される。この
際ブラシ４とロール１の接触圧力は、ブラシ４内
に挿入されている図示しないバネにより所望圧力
に調整されている。 The power supply device that has been proposed in the past is configured as described above, and its operation will be explained next.The roll 1 is rotatably supported by a bearing 2, and the roll 1 is rotatably supported by a roll drive device (not shown). It is rotationally driven via a plate 7, a turning rod 6, and a turning metal 5. Electrodes (not shown) are moved along the outer peripheral surface of the rotating roll 1 at close intervals to generate electrical discharge, and a pear-shaped surface with a constant surface roughness is obtained by electrical discharge machining. However, in this case, the electrical discharge machining current is generated by the feeder 9 connected to the machining power source 8, the power supply device 3, and the brush 4.
Power is supplied to the end face of the shaft portion of the roll 1 through the power supply. At this time, the contact pressure between the brush 4 and the roll 1 is adjusted to a desired pressure by a spring (not shown) inserted into the brush 4.
このように、従来の給電装置はロール１の片側
給電になつているので、限られた電流しか流すこ
とができなかつた。また、ロール１の給電を受け
ている非駆動側と、給電を受けていない駆動側と
では、加工電流の流れ方に片寄りがあり、加工に
対して悪い影響を与えるという欠点があつた。 As described above, since the conventional power supply device feeds power to one side of the roll 1, only a limited current can flow therethrough. Further, there is a disadvantage in that the flow of machining current is uneven between the non-driving side of the roll 1 that is receiving power and the driving side that is not receiving power, which has a negative effect on machining.
本発明は、上記のような従来の給電装置の欠点
を除去するためになされたもので、ロール駆動側
からも給電可能にすることにより、限られた電流
だけでなく多くの電流を流せるようにし、またロ
ールの両側から給電することによつて片寄り電流
がなくなり加工面全体にほぼ平均した電流が流れ
るようにした給電装置を提供するものである。
The present invention was made to eliminate the drawbacks of the conventional power supply device as described above, and by making it possible to supply power from the roll drive side as well, it is possible to flow not only a limited current but also a large amount of current. Further, the present invention provides a power feeding device which eliminates biased current by feeding power from both sides of the roll and allows a substantially average current to flow over the entire processed surface.
以下本発明の一実施例を第３図〜第６図によつ
て説明する。第３図は本発明装置を示す概略構成
図、第４図はその要部の拡大図、第５図、第６図
は夫々第４図のＡ−Ａ断面、Ｂ−Ｂ断面を示す断
面図である。図における符号で第１，２図と同一
のものは同一部材又は相当部分を示している。
An embodiment of the present invention will be described below with reference to FIGS. 3 to 6. FIG. 3 is a schematic configuration diagram showing the device of the present invention, FIG. 4 is an enlarged view of the main parts thereof, and FIGS. 5 and 6 are sectional views showing the AA cross section and the B-B cross section of FIG. It is. The same reference numerals in the figures as in FIGS. 1 and 2 indicate the same members or corresponding parts.
即ち、１は被加工物のロール、２は前記ロール
１を水平に支持する軸受、３は給電装置であつ
て、前記ロール１の非駆動側端部を支持する加工
機本体２３の軸部に装着されており、そのロール
１との接触はブラシ４で行われるようにしてあ
る。ここまでの片側給電のための装置部分は従来
のものと変りがなく、それを転用することができ
る。以下説明する他の片側給電のための装置は本
発明の特徴とするものである。 That is, 1 is a roll of the workpiece, 2 is a bearing that horizontally supports the roll 1, and 3 is a power supply device that is connected to the shaft of the processing machine main body 23 that supports the non-driving end of the roll 1. The brush 4 is attached to the roll 1, and the brush 4 makes contact with the roll 1. The device parts for one-sided power supply up to this point are the same as those of the conventional system, and can be reused. Another device for one-sided power feeding described below is a feature of the present invention.
５は前記ロール１の駆動側端部を駆動するため
に削つた平行面１′に嵌合、装着される回し金で
あり、本発明では嵌合した場合の〓間１９をなく
するため、セツトねじ２０によつてこの回し金５
がロール１に密着して給電面１８を形成するよう
にしてある。６は前記回し金５に回転を与えるた
めの一対の回し棒であつて、加工機本体２３の軸
部位置に垂直方向に固定された円板７に水平方向
に適当な間隔で直接植設されるものであるが、本
発明ではこの回し棒６に給電面１７を形成するた
め、加工機本体２３にＴ溝２２を設け、このＴ溝
２２にＴボルト２１を挿通すると共に、回し棒６
の回し金５と接触する面部分に給電コマ１４及び
球面軸受１５を装着し、この全体の回し棒６に前
記Ｔボルト２１を差通し、六角ナツト１６にて固
定する。また、駆動によつて回転する円板７の円
周面には摺動リング１０が装着され、この摺動リ
ング１０に加工用電源８からフイダー１２、ブラ
シ１１を介して給電される一方、リード線１３に
より回し棒６の先端部に固定されている前記給電
コマ１４へ給電されるようになつている。 Reference numeral 5 denotes a rotary ring which is fitted and attached to the parallel surface 1' cut in order to drive the drive side end of the roll 1. In the present invention, in order to eliminate the gap 19 when fitted, a set screw is used. This rotor 5 is tightened by the screw 20.
is in close contact with the roll 1 to form a power feeding surface 18. Reference numeral 6 denotes a pair of rotary rods for imparting rotation to the rotary metal 5, which are directly implanted at appropriate intervals in the horizontal direction on a disc 7 vertically fixed to the shaft portion of the processing machine main body 23. However, in the present invention, in order to form the power feeding surface 17 on the rotating rod 6, a T-groove 22 is provided in the processing machine main body 23, and the T-bolt 21 is inserted into the T-groove 22.
A power supply piece 14 and a spherical bearing 15 are attached to the surface portion that contacts the turning rod 5, and the T bolt 21 is inserted through the entire turning rod 6 and fixed with a hexagonal nut 16. Further, a sliding ring 10 is attached to the circumferential surface of the disk 7 that rotates by driving, and power is supplied to this sliding ring 10 from a processing power source 8 via a feeder 12 and a brush 11. Power is supplied to the power supply piece 14 fixed to the tip of the turning rod 6 through a wire 13.
本発明は、上記のように構成されており、次に
動作について説明する。先ず、図示を省略してあ
るロール駆動装置により円板７に回転が与えられ
ると、円板７に植設されている回し棒６及び給電
コマ１４、回し金５へと力が伝達され、ロール１
が回転する。この時ロール１への給電が行われ
て、ロール１の外周面と図示を省略してある電極
との間に所望の放電が発生し、ロール１の外周面
に梨地状の粗面が形成される。この際のロール１
への給電は、次のようにして行われる。即ち、加
工用電源８からフイダー９及び１２に分けて給電
が行われる。フイダー９側は従来の給電方式と同
一で、給電装置３とブラシ４を介してロール１の
非駆動側軸部の端面に給電される。一方ロール１
の駆動側では、フイダー１２、ブラシ１１を介し
て円板７の外周面に装着された摺動リング１０へ
給電され、この摺動リング１０からリード線１３
を介して給電コマ１４に給電され、さらにこの給
電コマ１４の給電面１７を通り回し金５へ給電さ
れ、次いで回し金５の給電面１８によりロール１
の駆動側軸部の端面に給電される。ここで、回し
金５の給電面１８へのロール１の押し付けは、セ
ツトねじ２０で行うが、給電コマ１４と回し金５
の給電面１７への押し付けは、ロール駆動力すな
わち回し棒６の回転力による。このため、給電面
１７の接触面積は電流容量に応じて決める。この
ように、ロール駆動側においても給電可能とした
ので、大電流の投下ができ、放電加工精度も良く
なるものである。 The present invention is configured as described above, and its operation will be explained next. First, when rotation is applied to the disc 7 by a roll drive device (not shown), force is transmitted to the rotating rod 6, the power supply piece 14, and the rotating metal 5 installed in the disc 7, and the roll is rotated. 1
rotates. At this time, power is supplied to the roll 1, and a desired electrical discharge occurs between the outer circumferential surface of the roll 1 and an electrode (not shown), and a satin-like rough surface is formed on the outer circumferential surface of the roll 1. Ru. Roll 1 at this time
The power is supplied as follows. That is, power is supplied from the processing power source 8 to the feeders 9 and 12 separately. The feeder 9 side is the same as the conventional power supply system, and power is supplied to the end surface of the non-drive side shaft portion of the roll 1 via the power supply device 3 and the brush 4. On the other hand, roll 1
On the drive side, power is supplied via the feeder 12 and the brush 11 to a sliding ring 10 attached to the outer peripheral surface of the disk 7, and from this sliding ring 10 a lead wire 13
Power is supplied to the power feeding top 14 through the power feeding top 14, and then power is fed to the rotary wheel 5 through the power feeding surface 17 of the power feeding top 14, and then the power is fed to the rotary wheel 5 through the power feeding surface 18 of the rotary wheel 5.
Power is supplied to the end face of the drive-side shaft portion. Here, the roll 1 is pressed onto the power supply surface 18 of the rotary ring 5 using the set screw 20, but the power supply piece 14 and the rotary ring 5
is pressed against the power supply surface 17 by the roll driving force, that is, the rotational force of the turning rod 6. Therefore, the contact area of the power supply surface 17 is determined according to the current capacity. In this way, since power can be supplied even on the roll drive side, a large current can be applied and the accuracy of electrical discharge machining can be improved.
なお、上記実施例においては、本発明をロール
状被加工物の外周面を梨地状に加工する放電加工
機の給電装置として使用する場合について図示説
明したが、必ずしもこれに限定されるものではな
く、例えばロール状金属体の表面に電気メツキを
施す際の、前記ロール状金属体の給電装置等のよ
うな、回転被給電体への給電装置を適用すること
ができることは言うまでもない。 In the above embodiments, the present invention is illustrated and described for the case where it is used as a power supply device for an electrical discharge machine that processes the outer peripheral surface of a roll-shaped workpiece into a matte finish, but the present invention is not necessarily limited to this. It goes without saying that a power supply device for a rotating power-supplied body, such as a power supply device for the roll-shaped metal body described above, can be applied when electroplating the surface of the roll-shaped metal body, for example.
また、従来からの給電装置すなわち非駆動側の
給電装置にも本発明の給電装置を適用することも
できる。 Further, the power supply device of the present invention can also be applied to a conventional power supply device, that is, a non-drive side power supply device.
本発明の給電装置は、ロール駆動側からの給電
を可能にしたことにより、ロール両側給電方法を
採ることができるようになつたので、大電流の給
電が可能となる。また、従来装置による電流の片
寄りをなくすことができるので、加工精度の向上
が図られる等の諸効果を奏する。
The power supply device of the present invention enables power supply from the roll drive side, thereby making it possible to adopt a method of supplying power to both sides of the roll, and thus making it possible to supply power with a large current. Furthermore, since it is possible to eliminate the unbalanced current caused by conventional devices, there are various effects such as improvement in processing accuracy.
第１図、第２図は従来の給電装置を示し、第１
図はその概略構成図であり、第２図は第１図の
−矢視図である。第３図〜第６図は本発明の給
電装置を示し、第３図は概略構成図、第４図はそ
の要部拡大図、第５図は第４図のＡ−Ａ断面図、
第６図は第４図のＢ−Ｂ断面図である。
１……ロール、１′……ロール駆動側の平行面、
２……軸受、３……給電装置、４……ブラシ、５
……回し金、６……回し棒、７……円板、８……
加工用電源、９……フイダー、１０……摺動リン
グ、１１……ブラシ、１２……フイダー、１３…
…リード線、１４……給電コマ、１５……球面軸
受、１６……六角ナツト、１７，１８……給電
面、１９……すきま、２０……セツトねじ、２１
……Ｔボルト、２２……Ｔ溝、２３……加工機本
体。
Figures 1 and 2 show conventional power supply devices.
The figure is a schematic configuration diagram thereof, and FIG. 2 is a view taken along the - arrow in FIG. 1. 3 to 6 show the power supply device of the present invention, FIG. 3 is a schematic configuration diagram, FIG. 4 is an enlarged view of the main part thereof, and FIG. 5 is a sectional view taken along line AA in FIG. 4.
FIG. 6 is a sectional view taken along line BB in FIG. 4. 1...roll, 1'...parallel surface on the roll drive side,
2...Bearing, 3...Power supply device, 4...Brush, 5
... Turning metal, 6... Turning rod, 7... Disc, 8...
Processing power source, 9... feeder, 10... sliding ring, 11... brush, 12... feeder, 13...
... Lead wire, 14 ... Power supply piece, 15 ... Spherical bearing, 16 ... Hexagonal nut, 17, 18 ... Power supply surface, 19 ... Gap, 20 ... Set screw, 21
...T bolt, 22 ... T groove, 23 ... processing machine body.
Claims (1)
に、電極を前記被加工物の外周面に沿つて軸方向
に移動させ、前記電極と被加工物との間に放電を
発生させて前記被加工物の表面に加工を施す放電
加工機において、前記被加工物の非駆動側端部に
はブラシを介して該被加工物に結合する給電装置
を設け、駆動側端部にはそれを駆動可能に把持す
る回し金と、該回し金に回転を与える一対の回し
棒とに夫々給電面を設け、該回し棒に給電装置を
装着して、被加工物の両端部から給電し得るよう
にしたことを特徴とする放電加工機の給電装置。1 While rotating a roll-shaped workpiece, an electrode is moved in the axial direction along the outer peripheral surface of the workpiece, and an electric discharge is generated between the electrode and the workpiece to cause the workpiece to be machined. In an electric discharge machine that processes the surface of an object, a power supply device is provided at the non-drive end of the workpiece to be coupled to the workpiece via a brush, and a power supply device is provided at the drive end to drive the power supply device. A power feeding surface is provided on a rotary metal to be gripped and a pair of rotating rods that rotate the rotary metal, respectively, and a power feeding device is attached to the rotating rod so that power can be supplied from both ends of the workpiece. A power supply device for an electric discharge machine characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17523684A JPS6156831A (en) | 1984-08-24 | 1984-08-24 | Power feeder for electric discharge machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17523684A JPS6156831A (en) | 1984-08-24 | 1984-08-24 | Power feeder for electric discharge machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6156831A JPS6156831A (en) | 1986-03-22 |
| JPS6361129B2 true JPS6361129B2 (en) | 1988-11-28 |
Family
ID=15992636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17523684A Granted JPS6156831A (en) | 1984-08-24 | 1984-08-24 | Power feeder for electric discharge machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6156831A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012108431B3 (en) * | 2012-09-10 | 2013-11-07 | Hirschmann Gmbh | Drive device for a wire eroding machine with a power transfer device for power transfer to a rotating workpiece |
-
1984
- 1984-08-24 JP JP17523684A patent/JPS6156831A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6156831A (en) | 1986-03-22 |
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