JPH0227440B2 - - Google Patents
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- Publication number
- JPH0227440B2 JPH0227440B2 JP59103409A JP10340984A JPH0227440B2 JP H0227440 B2 JPH0227440 B2 JP H0227440B2 JP 59103409 A JP59103409 A JP 59103409A JP 10340984 A JP10340984 A JP 10340984A JP H0227440 B2 JPH0227440 B2 JP H0227440B2
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- JP
- Japan
- Prior art keywords
- electrolytic
- workpiece
- electrolytic solution
- anode
- cathode
- Prior art date
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Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は電解バリ取りの装置に関し、特に金属
加工物の一面から他面に貫設された細孔内面のバ
リ取りを有効に行なうことができる電解バリ取り
装置に関する。[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an electrolytic deburring device, and in particular is capable of effectively deburring the inner surface of a pore penetrating from one side of a metal workpiece to the other side. This article relates to an electrolytic deburring device that can be used.
「従来の技術」
金属加工物に穿設された細孔（数百μφないし
数mmφ）のバリ取りを機械的、物理的手段よつて
行なうことはきわめて困難である。このため、従
来から電解研磨等の化学的手段が試みられてい
た。"Prior Art" It is extremely difficult to deburr pores (several hundred μφ to several mmφ) drilled in a metal workpiece by mechanical or physical means. For this reason, chemical means such as electrolytic polishing have been attempted.
しかし、その場合においても電解研磨の際に通
常用いられる電解液（リン酸（H3PO4）、硫酸
（H2SO4）及びクロム酸（Cr2O3）を主成分とす
る混合液）を用いたのでは細孔内面のバリ取りを
有効に行なうことができず、硝酸ナトリウム
（NaNO3）を主成分とし、溶出効果のきわめて高
い特殊な電解液を用いてはじめて可能であつた。 However, even in that case, the electrolytic solution normally used during electropolishing (a mixed solution whose main components are phosphoric acid (H 3 PO 4 ), sulfuric acid (H 2 SO 4 ), and chromic acid (Cr 2 O 3 )) However, deburring of the inner surface of the pores could not be effectively performed by using a special electrolytic solution containing sodium nitrate (NaNO 3 ) as the main component and having an extremely high elution effect.
また、例えば、特開昭52−13439号公報等に示
されるように、孔を有するパイプ状陰極で電解液
を仕切り、パイプ状電極の内部空間を真空吸引す
ることにより被加工処理物の孔中を電解液が流通
するようにしてバリ取りを行なうようにしたもの
が存在した。 For example, as shown in Japanese Unexamined Patent Application Publication No. 13439/1983, the electrolyte is partitioned off by a pipe-shaped cathode having holes, and the inner space of the pipe-shaped electrode is vacuum-suctioned, so that the holes in the workpiece are absorbed. There was a device in which deburring was performed by allowing an electrolyte to flow through the deburring process.
「発明が解決しようとする問題」
しかし、上述の従来の方法では、電解液として
硝酸系の電解液を用いるためにバリ取り後に加工
物にさびを生じるおそれがあるとともに、溶出効
果がきわめて高いために精密加工物にあつてはバ
リ取りによつて寸法誤差が生じるおそれもあり、
さらに廃液の処理も困難である等の不都合があつ
た。"Problem to be Solved by the Invention" However, in the conventional method described above, since a nitric acid-based electrolyte is used as the electrolyte, there is a risk of rusting on the workpiece after deburring, and the elution effect is extremely high. In the case of precision machined products, dimensional errors may occur due to deburring.
Furthermore, there were other inconveniences such as difficulty in processing the waste liquid.
また、上記のような従来技術においては、被加
工物の孔中に孔を有する電極を挿入してバリ取り
を行なうものであるが、被加工物の孔が大きい場
合には電極の挿入も容易であるし、バリ取りも容
易に行なうことができるものである。しかしなが
ら、このような電極を挿入することができないよ
うな細孔を有する被加工物のバリ取りには挿入す
ることができないため用いることができず、バリ
取り効果が良くないという問題があつた。 In addition, in the conventional technology described above, deburring is performed by inserting an electrode having a hole into the hole in the workpiece, but if the hole in the workpiece is large, it is easy to insert the electrode. Moreover, deburring can be easily performed. However, it cannot be used for deburring a workpiece that has pores into which such an electrode cannot be inserted because it cannot be inserted, and there is a problem that the deburring effect is not good.
本発明は、上記欠点のない電解バリ取り装置を
提供することが目的である。 The object of the present invention is to provide an electrolytic deburring device that does not have the above drawbacks.
「問題点を解決するための手段」
本発明に係る電解バリ取り装置では、電解槽
と、この電解槽に貯留された電解液と、この電解
液中に配設した筒状陰極と、該筒状陰極内に該陰
極と対向するよう配置され、側壁面に複数の孔を
穿設した有体筒状の陽極と、上記陰極と陽極との
間において電解液中に浸される細孔を有する加工
物を保持しながら、この電極間に電流を通じるた
めの電源を設けてなる電解バリ取り装置におい
て、上記陽極の外壁面には加工物を保持する保持
手段を形成すると共に、該保持手段によつて加工
物を保持しながら、該加工物の電極の通電方向に
貫設されている細孔が側壁面に穿設した孔に対し
て略中心となる位置において孔を閉塞するよう保
持して仕切り構造を形成し、この仕切り構造によ
つて仕切られた液間に液圧差を生じさせる手段を
有し、保持された加工物に貫設された細孔のみを
通じて上記電解液が流通するようにし、電解液と
してて特別な液を用いることなく、通常の電解液
を用いて有効に細孔内のバリ取りを行なうように
するものである。"Means for Solving the Problems" The electrolytic deburring device according to the present invention includes an electrolytic cell, an electrolytic solution stored in the electrolytic cell, a cylindrical cathode disposed in the electrolytic solution, and a cylindrical cathode disposed in the electrolytic solution. A solid cylindrical anode disposed in a shaped cathode to face the cathode and having a plurality of holes bored in the side wall surface, and a pore immersed in an electrolyte between the cathode and the anode. In an electrolytic deburring device that is provided with a power source for passing a current between the electrodes while holding a workpiece, a holding means for holding the workpiece is formed on the outer wall surface of the anode, and a holding means is formed on the outer wall surface of the anode. Therefore, while holding the workpiece, the workpiece is held so as to close the hole at a position where the fine hole penetrating the workpiece in the current direction of the electrode is approximately centered with respect to the hole drilled in the side wall surface. A partition structure is formed, and means is provided for creating a liquid pressure difference between the liquids partitioned by the partition structure, so that the electrolytic solution flows only through the pores penetrated through the held workpiece. The purpose is to effectively deburr the inside of pores using a normal electrolytic solution without using a special electrolytic solution.
「作 用」
細孔中を電解液が流通することによつて、細孔
内に存在する突起状物であるバリの周辺は常に新
しい電解液で洗い流され、その周辺には電気抵抗
の著しく高い陽極層が厚く形成することがない。
このため、上記バリは急速に電解液中に溶出して
除去される。``Function'' As the electrolyte flows through the pores, the area around the burrs, which are protrusions that exist within the pores, is constantly washed away with fresh electrolyte, and the area around them has extremely high electrical resistance. The anode layer does not become thick.
Therefore, the burrs are rapidly eluted into the electrolyte and removed.
一方、細孔内壁の平滑な面の周辺に形成された
陽極層は上記電解液の流通によつては完全に洗い
流されることがないため、この面における溶出は
きわめて緩慢に行なわれる。 On the other hand, since the anode layer formed around the smooth surface of the inner wall of the pore is not completely washed away by the flow of the electrolytic solution, elution on this surface occurs extremely slowly.
したがつて、細い孔内のバリのみが有効に除去
される。 Therefore, only the burrs within the narrow holes are effectively removed.
「実施例」
第１図は本発明に係る電解バリ取り装置の第１
実施例の構成を示す図である。"Example" Figure 1 shows a first example of an electrolytic deburring device according to the present invention.
FIG. 2 is a diagram showing the configuration of an example.
図において、ポリプロピレン等で内張りされて
おり、18−８ステンレス（SUS−27）で形成さ
れた電解槽１内にはリン酸（H3PO4）、硫酸
（H2SO4）及びクロム酸（Cr2O3）を主成分とし、
これに有機酸等の添加物を加えてなる電解液２が
貯留されている。 In the figure, phosphoric acid (H 3 PO 4 ), sulfuric acid (H 2 SO 4 ), and chromic acid ( Cr 2 O 3 ) as the main component,
An electrolytic solution 2 prepared by adding additives such as an organic acid to the electrolytic solution 2 is stored.
上記槽内の電解液中には、上下に開口する筒状
の銅版によつて形成された陰極３が設置されてい
る。上記陰極３の筒内には、アルミニウム（Al）
又はチタン（Ti）金属板で形成された有底筒状
の陽極４が設置されている。上記陽極４の側面に
は複数の孔５，…，５が設けられている。上記孔
５，…，５には、上記陽極の外面から上記孔５，
…，５を塞ぐように加工物６，…，６の一面が当
接され、押え板７，…，７を止めビス８，…，８
によつて上記陽極に固定することによつて保持さ
れている。 A cathode 3 formed of a cylindrical copper plate with vertical openings is installed in the electrolytic solution in the tank. The inside of the cylinder of the cathode 3 is made of aluminum (Al).
Alternatively, a bottomed cylindrical anode 4 made of a titanium (Ti) metal plate is installed. A plurality of holes 5, . . . , 5 are provided on the side surface of the anode 4. The holes 5, ..., 5 are connected to the holes 5, ..., 5 from the outer surface of the anode.
One surface of the workpieces 6,..., 6 is brought into contact with the workpieces 6,..., 6 so as to block the workpieces 6,..., 5, and the presser plates 7,..., 7 are stopped by screws 8,..., 8
It is held by being fixed to the anode by a screw.
上記加工物６，…，６には、一面から他面に細
孔９，…，９が貫設されており、上記細孔の一面
における開口部が上記陽極側面の孔５，…，５の
ほぼ中央にそれぞれ位置するように保持されてい
る。 The workpieces 6, . . . , 6 are provided with pores 9, . They are held so that they are located approximately in the center.
したがつて、上記陽極４は上部開口部を除き、
上記加工物６，…，６に貫設された細孔９，…，
９によつてのみ外部と連通される。 Therefore, the anode 4 except for the upper opening,
Pores 9,..., provided through the workpieces 6,...,6,
9 communicates with the outside only.
また、上記陽極の上部側面にはオーバーフロー
孔１０が設けられている。上記オーバーフロー孔
１０は上記電解槽１内に貯留されている電解液の
液面よりも高い位置に設けられており、これに電
解液１１が満たされている。 Further, an overflow hole 10 is provided on the upper side surface of the anode. The overflow hole 10 is provided at a position higher than the level of the electrolytic solution stored in the electrolytic cell 1, and is filled with the electrolytic solution 11.
上記電解液１１はポンプ１２によつて電解液２
から常に補給され、余分となつた電解液はオーバ
ーフロー孔１０から排出されて電解液２と１１と
の液面差が一定となるように維持される。 The electrolyte 11 is pumped into the electrolyte 2 by a pump 12.
The electrolytic solution is constantly replenished from the electrolytic solution 2, and the excess electrolytic solution is discharged from the overflow hole 10 to maintain a constant level difference between the electrolytic solutions 2 and 11.
すなわち、上記ポンプ１２の吸入パイプ１３か
ら電解液が図の矢印Ａの方向に吸入され、排出パ
イプ１４によつて図の矢印Ｂの方向に排出されて
補給される。 That is, the electrolytic solution is sucked in from the suction pipe 13 of the pump 12 in the direction of arrow A in the figure, and is discharged through the discharge pipe 14 in the direction of arrow B in the figure to be replenished.
また、上記陽極４には、電源１５のプラス電極
が接続され、上記陰極３には、マイナス電極が接
続されている。 Further, a positive electrode of a power source 15 is connected to the anode 4, and a negative electrode is connected to the cathode 3.
上述の装置においては、加工物６，…，６の一
面に接する電解液２と他面に接する電解液１１と
は陽極４の構造体によつて仕切られており、か
つ、両電解液の液面は高低差があるから、両液間
には液圧差が生じている。しかも、両液間を連絡
するのは細孔９，…，９のみである。したがつ
て、その液圧差に応じて細孔９，…，９中を電解
液が流通することになる。 In the above-mentioned apparatus, the electrolytic solution 2 in contact with one side of the workpieces 6, ..., 6 and the electrolytic solution 11 in contact with the other side are separated by the structure of the anode 4, and the electrolytic solution of both electrolytes is Since there is a difference in height between the surfaces, there is a difference in hydraulic pressure between the two liquids. Moreover, only the pores 9, . . . , 9 communicate between the two liquids. Therefore, the electrolytic solution flows through the pores 9, . . . , 9 in accordance with the liquid pressure difference.
これによつて、細孔内には存在する突起状物で
あるバリの周辺は常に新しい電解液によつて洗い
流されて急速に溶出し、バリが除去される。 As a result, the area around the burr, which is a protrusion existing in the pores, is constantly washed away by the new electrolyte and rapidly eluted, thereby removing the burr.
なお、上記細孔９，…，９から流出する電解液
よりも多い電解液がポンプ１２によつて捕給さ
れ、余分な液はオーバーフロー孔１０から排出さ
れるので液圧差は常に一定に保持され、安定した
バリ取りが行なわれる。 Note that the pump 12 captures more electrolyte than the electrolyte flowing out from the pores 9, . , stable deburring is performed.
このように、本実施例にあつては細孔が貫設さ
れた両面間に液圧差を生じさせるのに液面差を維
持するだけであるから、その構成が単純であり、
製作が容易である。 In this way, in this embodiment, the structure is simple, since the liquid level difference is simply maintained to generate the liquid pressure difference between the two surfaces through which the pores are inserted.
Easy to manufacture.
かつ、オーバーフロー孔を設けるだけで液面差
を常に一定とすることができ、これにより液圧差
を常に一定に保持できるから、細孔を流通する電
解液の流速が常に一定となり、その流れもみだれ
ることがない。このため、細孔内面に存在するバ
リのみを安定かつ有効に除去することができる。 In addition, by simply providing an overflow hole, the liquid level difference can always be kept constant, and as a result, the liquid pressure difference can always be kept constant, so the flow rate of the electrolytic solution flowing through the pores is always constant, and the flow also becomes sloppy. Never. Therefore, only the burrs present on the inner surfaces of the pores can be stably and effectively removed.
なお、本発明は上記実施例の他に液圧差を生じ
させるものはすべて含むものであり、例えば、陽
極４内を密封してこれに外部から加圧する等の手
段によるもの等を含むことは勿論である。 It should be noted that the present invention includes all methods that generate a liquid pressure difference in addition to the above embodiments, and includes, for example, methods such as sealing the inside of the anode 4 and pressurizing it from the outside. It is.
「発明の効果」
本発明は叙上のように、電解槽と、この電解槽
に貯留された電解液２と、この電解液２中に配設
した筒状陰極３と、該筒状陰極３内に該陰極３と
対向するよう配置され、側壁面に複数の孔５，
５，…を穿設した有体筒状の陽極４と、上記陰極
と陽極との間において電解液中に浸される細孔９
を有する加工物６を保持しながら、この電極間に
電流を通じるための電源を設けてなる電解バリ取
り装置において、上記陽極の外壁面には加工物を
保持する保持手段を形成すると共に、該保持手段
によつて加工物を保持しながら、該加工物の電極
の通電方向に貫設されている細孔９が側壁面に穿
設した孔５に対して略中心となる位置において孔
５を閉塞するよう保持して仕切り構造を形成し、
この仕切り構造によつて仕切られた液間に液圧差
を生じさせる手段を有し、保持された加工物に貫
設された細孔９のみを通じて上記電解液２が流通
するように成したものである。"Effects of the Invention" As described above, the present invention includes an electrolytic cell, an electrolyte 2 stored in the electrolytic cell, a cylindrical cathode 3 disposed in the electrolyte 2, and a cylindrical cathode 3. It is arranged to face the cathode 3 inside, and has a plurality of holes 5 on the side wall surface.
A solid cylindrical anode 4 with holes 5, ..., and a pore 9 immersed in the electrolyte between the cathode and the anode.
In an electrolytic deburring device, a power source is provided for passing a current between the electrodes while holding a workpiece 6 having an anode. While holding the workpiece by the holding means, the hole 5 is opened at a position where the fine hole 9 penetrating the workpiece in the current direction of the electrode is approximately centered with respect to the hole 5 bored in the side wall surface. It is held closed to form a partition structure,
It has a means for creating a liquid pressure difference between the liquids partitioned by this partition structure, and is configured so that the electrolytic solution 2 flows only through the pores 9 penetrated through the held workpiece. be.
従つて、通常の電解研磨に用いられる一般的な
電解液によつて細孔のバリ取りができる。また、
孔の大小に拘らず、特に細孔に対するバリ取り効
果がより良好なものとなつた。 Therefore, the pores can be deburred using a general electrolytic solution used in normal electrolytic polishing. Also,
Regardless of the size of the pores, the deburring effect especially on pores became better.
第１図は本発明に係る電解バリ取り装置の第１
実施例を示す図である。
１……電解槽、２，１１……電解液、３……陰
極、４……陽極、６……加工物、７……押え板、
８……止めビス、９……細孔、１２……ポンプ、
１５……電源。
FIG. 1 shows the first part of the electrolytic deburring device according to the present invention.
It is a figure showing an example. 1... Electrolytic cell, 2, 11... Electrolyte, 3... Cathode, 4... Anode, 6... Workpiece, 7... Holding plate,
8... Set screw, 9... Pore, 12... Pump,
15...Power supply.
Claims (1)
と、この電解液中に配設した筒状陰極と、該筒状
陰極内に該陰極と対向するよう配置され、側壁面
に複数の孔を穿設した有体筒状の陽極と、上記陰
極と陽極との間において電解液中に浸される細孔
を有する加工物を保持しながら、この電極間に電
流を通じるための電源を設けてなる電解バリ取り
装置において、 上記陽極の外壁面には加工物を保持する保持手
段を形成すると共に、該保持手段によつて加工物
を保持しながら、該加工物の電極の通電方向に貫
設されている細孔が側壁面に穿設した孔に対して
略中心となる位置において孔を閉塞するよう保持
して仕切り構造を形成し、この仕切り構造によつ
て仕切られた液間に液圧差を生じさせる手段を有
し、保持された加工物に貫設された細孔のみを通
じて上記電解液が流通するように成したことを特
徴とする電解バリ取り装置。 ２ 上記液圧差を生じさせる手段として、上記仕
切り構造によつて仕切られた上記陽極内の電解液
の液面を上記陰極内の電解液の液面よりも高い位
置に保持する手段を用いたことを特徴とする特許
請求の範囲第１項記載の電解バリ取り装置。[Scope of Claims] 1. An electrolytic cell, an electrolytic solution stored in the electrolytic cell, a cylindrical cathode disposed in the electrolytic solution, and a cylindrical cathode disposed within the cylindrical cathode so as to face the cathode, A current is applied between a solid cylindrical anode with a plurality of holes bored in the side wall surface, and a workpiece having pores immersed in an electrolytic solution between the cathode and anode. In an electrolytic deburring device provided with a power supply for communication, a holding means for holding the workpiece is formed on the outer wall surface of the anode, and while the workpiece is held by the holding means, the workpiece is A partition structure is formed by holding the hole penetrating the electrode in the direction of current flow at a position approximately central to the hole drilled in the side wall surface so as to close the hole. 1. An electrolytic deburring device characterized in that the electrolytic solution is configured to have means for creating a liquid pressure difference between the held workpieces and to allow the electrolytic solution to flow only through pores formed through the held workpiece. 2. As a means for generating the liquid pressure difference, a means is used to maintain the liquid level of the electrolyte in the anode partitioned by the partition structure at a higher level than the liquid level of the electrolyte in the cathode. An electrolytic deburring device according to claim 1, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10340984A JPS60248900A (en) | 1984-05-22 | 1984-05-22 | Electrolytical deburring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10340984A JPS60248900A (en) | 1984-05-22 | 1984-05-22 | Electrolytical deburring instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60248900A JPS60248900A (en) | 1985-12-09 |
| JPH0227440B2 true JPH0227440B2 (en) | 1990-06-18 |
Family
ID=14353251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10340984A Granted JPS60248900A (en) | 1984-05-22 | 1984-05-22 | Electrolytical deburring instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60248900A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0455939U (en) * | 1990-09-18 | 1992-05-13 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213439A (en) * | 1975-07-24 | 1977-02-01 | Fuji Electric Co Ltd | Method of electrolytically removing burrs on encountering portion of side port communicating with deep port |
-
1984
- 1984-05-22 JP JP10340984A patent/JPS60248900A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0455939U (en) * | 1990-09-18 | 1992-05-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60248900A (en) | 1985-12-09 |
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