JPH07276211A - Electrode grinding machine - Google Patents
Electrode grinding machineInfo
- Publication number
- JPH07276211A JPH07276211A JP7458494A JP7458494A JPH07276211A JP H07276211 A JPH07276211 A JP H07276211A JP 7458494 A JP7458494 A JP 7458494A JP 7458494 A JP7458494 A JP 7458494A JP H07276211 A JPH07276211 A JP H07276211A
- Authority
- JP
- Japan
- Prior art keywords
- electrode rod
- polishing
- guide
- tip
- holder
- 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
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Arc Welding In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ＴＩＧ溶接やプラズマ
アーク溶接等に用いられるタングステン、モリブデン、
クロム銅等の溶接用電極棒の先端を所望の形状に研磨加
工する電極棒研磨機の改良に関するものである。The present invention relates to tungsten, molybdenum, used for TIG welding, plasma arc welding, etc.
The present invention relates to an improvement of an electrode rod polishing machine that polishes the tip of a welding electrode rod made of chromium copper or the like into a desired shape.
【０００２】[0002]
【従来の技術】一般に、溶接に於ける電極棒先端の形状
は、溶接部の電流密度や加圧力分布、冷却効果等と密接
な関係があり、作業能率や溶接製品の品質等に大きな影
響を及ぼすものである。その為、電極棒Ａの先端は、溶
接材料、継手形状及び溶接条件等に応じて適宜の形状、
例えば先端をシャープな円錐形状にしたり、先端をテー
パ面と平坦面とから成る２段カット形の形状（所謂裁頭
円錐形状）にしたり、或いは先端を研磨角度の異なる二
つのテーパ面から成る２段形状に仕上げる必要がある
（図２０（イ）〜図２０（ハ）参照）。特に、図２０
（ハ）に示す形状は、アークの集中性や起動性が良く、
先端の消耗や変形が少ない等の利点があり、電極棒Ａの
研磨加工に広く利用されている。ところで、先端が所望
の形状に仕上げられた電極棒Ａは、一定時間アーク放電
されると、先端が消耗・変形し、アークの電気的特性や
母材への熱輸送特性等に影響を与えて溶接に異常を来す
ことになる為、先端を再加工する必要がある。2. Description of the Related Art In general, the shape of the electrode rod tip in welding is closely related to the current density, welding pressure distribution, cooling effect, etc. of the welded portion, and has a great influence on work efficiency and quality of welded products. To exert. Therefore, the tip of the electrode rod A has an appropriate shape depending on the welding material, joint shape, welding conditions, and the like.
For example, the tip has a sharp conical shape, the tip has a two-step cut shape including a tapered surface and a flat surface (so-called truncated cone shape), or the tip has two tapered surfaces with different polishing angles. It is necessary to finish in a step shape (see FIGS. 20A to 20C). In particular, FIG.
The shape shown in (c) has good arc concentration and startability,
It has advantages such as less wear and deformation of the tip and is widely used for polishing the electrode rod A. By the way, the electrode rod A whose tip is finished in a desired shape is consumed and deformed when arc-discharged for a certain period of time, which affects electrical characteristics of the arc and heat transport characteristics to the base material. Since it causes abnormalities in welding, it is necessary to reprocess the tip.
【０００３】而して、電極棒Ａ先端の再加工方法として
は、一般に専用の研磨機を用いて集中的に再加工する方
法と、溶接ごとにヤスリ等により再加工する方法が採用
されている。しかし、前者の方法では、交換用の電極棒
Ａを多量に保持する必要があるだけでなく、加工コスト
を引き下げ難いと云う問題がある。又、後者の方法で
は、加工能率や加工精度が悪いうえ、研磨による消耗量
が多くて溶接棒の消耗が速いと云う問題がある。As a method of reworking the tip of the electrode rod A, generally, there are adopted a method of reworking intensively using a dedicated polishing machine and a method of reworking with a file or the like for each welding. . However, the former method has a problem that it is not only necessary to hold a large amount of the replacement electrode rod A but also it is difficult to reduce the processing cost. In addition, the latter method has a problem that the working efficiency and the working accuracy are poor, and the amount of abrasion is large due to polishing, and the consumption of the welding rod is fast.
【０００４】一方、上述の如き問題を解決するものとし
て、本件出願人は先に図２１及び図２２に示すような電
極棒研磨機を開発し、これを公開している（実願平２−
１０１４３９号）。即ち、前記電極棒研磨機は、ケース
本体４０と、ケース本体４０内に収納したモータ４１
と、モータ４１の駆動軸４１ａに固定した研磨盤４２
と、ケース本体４０の上面に支軸ピン４３により水平揺
動自在に配設したスイングプレート４４と、スイングプ
レート４４の中央部に取付けた電極棒保持ガイド４５
と、スイングプレート４４の先端部を矢印方向へ揺動さ
せるスイング量調整ネジ４６等から構成されている。On the other hand, in order to solve the above problems, the applicant of the present invention has previously developed an electrode rod polishing machine as shown in FIGS. 21 and 22, and has published it (Practical application No. 2-
101439). That is, the electrode rod polisher includes a case body 40 and a motor 41 housed in the case body 40.
And a polishing table 42 fixed to the drive shaft 41a of the motor 41
A swing plate 44 that is horizontally swingable by a support shaft pin 43 on the upper surface of the case body 40; and an electrode rod holding guide 45 attached to the center of the swing plate 44.
And a swing amount adjusting screw 46 for swinging the tip of the swing plate 44 in the arrow direction.
【０００５】而して、電極棒Ａの先端を研磨加工する場
合には、先ず電極棒保持ガイド４５の挿通孔内へ上方よ
り電極棒Ａを挿通し、その先端を研磨盤４２の研磨面４
２ａへ接触させ、その後モータ４１を起動させる。研磨
盤４２が回転すると、電極棒Ａはその自重によって下方
へ押圧されると共に、研磨盤４２の摩擦力により回転力
が与えられて低速で回転する。そして、モータ４１を一
定時間運転することにより、電極棒Ａは回転しつつ研磨
面４２ａによって順次研磨され、先端部が完全な円錐形
状に形成される。又、スイング量調整ネジ４６を回転操
作してスイングプレート４４を揺動させ、電極棒Ａの軸
芯を研磨盤４２の外方へ移動させると、円錐形の尖頭部
が研磨盤４２の段部４２ｂへ接触することになり、尖頭
部が研磨されて平坦面が形成され、テーパ面と平坦面を
備えた裁頭円錐形状の先端形状が得られる。When the tip of the electrode rod A is to be ground, the electrode rod A is first inserted into the insertion hole of the electrode rod holding guide 45 from above, and the tip thereof is polished on the polishing surface 4 of the polishing plate 42.
2a is contacted, and then the motor 41 is activated. When the polishing disc 42 rotates, the electrode rod A is pressed downward by its own weight, and a rotational force is given by the frictional force of the polishing disc 42 to rotate at a low speed. Then, by operating the motor 41 for a certain period of time, the electrode rod A is sequentially polished by the polishing surface 42a while rotating, and the tip portion is formed into a perfect conical shape. Further, when the swing plate 44 is swung by rotating the swing amount adjusting screw 46 to move the shaft center of the electrode rod A to the outside of the polishing plate 42, the conical point is the step of the polishing plate 42. By contacting the portion 42b, the pointed portion is polished to form a flat surface, and a truncated conical tip shape having a tapered surface and a flat surface is obtained.
【０００６】前記電極棒研磨機は、構造が簡単で持ち運
びが便利なうえ、電極棒Ａの先端を円錐形状若しくは裁
頭円錐形状に能率よく形成することができる等、優れた
利点がある。然し乍ら、従前の電極棒研磨機にも下記の
如き解決すべき問題点が多く残されている。 研磨盤４２の研磨面４２ａに対して電極棒Ａの傾斜
角度が常時一定の為、溶接条件等が変わって電極棒Ａ先
端の角度を変える必要が生じた場合には、研磨盤４２を
他の形状の研磨盤４２（例えば研磨面４２ａがテーパ状
になった研磨盤４２）と交換する必要があった。その
為、電極棒Ａ先端を所望の角度に研磨加工するには、交
換用の研磨盤４２を多量に保持する必要があった。その
結果、加工コストの高騰を招くと共に、研磨盤４２の交
換に手数を要する等、の問題が発生した。 電極棒保持ガイド４５は、内径の異なるものが数種
類用意されて居り、電極棒Ａの直径が変わった場合に
は、電極棒保持ガイド４５を交換する必要があった。そ
の結果、交換用の電極棒保持ガイド４５も多量に保持す
る必要があり、加工コストの引き下げを図れなかった。 電極棒Ａの先端部が研磨盤４２の研磨面４２ａの略
同一個所に接触する為、研磨面４２ａに局部的な磨耗を
生じて研磨面４２ａ全域を有効に活用できないうえ、研
磨方向が常に同じ方向になると云う問題があった。特
に、従前の電極棒研磨機では、電極棒Ａ先端が軸芯と直
交する方向へ研磨され、電極棒Ａ先端のテーパ面には軸
芯と直交する方向の筋が形成されることになる。 ところで、電極棒Ａ先端のテーパ面に軸芯と直交する方
向の筋が形成されると、アークが広がり、又、テーパ面
に電極棒Ａの軸芯に沿う方向の筋が形成されると、アー
クの集中性が良くなることが知られている。即ち、研磨
方向によってアークの性質が変わることが知られてい
る。ところが、従前の電極棒研磨機では、研磨方向が常
に同一であり、研磨方向の異なる電極棒Ａを得られない
と云う問題があった。[0006] The electrode rod grinder has the advantages that it has a simple structure and is convenient to carry, and that the tip of the electrode rod A can be efficiently formed into a conical shape or a truncated cone shape. However, the conventional electrode rod polishing machine still has many problems to be solved as described below. Since the inclination angle of the electrode rod A with respect to the polishing surface 42a of the polishing disc 42 is always constant, if the welding condition or the like changes and the angle of the tip of the electrode rod A needs to be changed, the polishing disc 42 can be changed to another one. It was necessary to replace it with a shaped polishing plate 42 (for example, a polishing plate 42 having a tapered polishing surface 42a). Therefore, in order to polish the tip of the electrode rod A to a desired angle, it was necessary to hold a large amount of the polishing plate 42 for replacement. As a result, the processing cost rises, and it takes time to replace the polishing plate 42. There are several kinds of electrode rod holding guides 45 having different inner diameters, and it was necessary to replace the electrode rod holding guide 45 when the diameter of the electrode rod A changed. As a result, the replacement electrode rod holding guide 45 also needs to be held in a large amount, and the processing cost cannot be reduced. Since the tip of the electrode rod A comes into contact with substantially the same place on the polishing surface 42a of the polishing plate 42, local abrasion occurs on the polishing surface 42a and the entire polishing surface 42a cannot be effectively utilized, and the polishing direction is always the same. There was a problem that it was going in the direction. Particularly, in the conventional electrode rod polishing machine, the tip of the electrode rod A is polished in the direction orthogonal to the axis, and the taper surface of the tip of the electrode A forms a line in the direction orthogonal to the axis. By the way, when a line in a direction orthogonal to the axis is formed on the tapered surface of the tip of the electrode rod A, an arc spreads, and when a line in a direction along the axis of the electrode A is formed on the tapered surface, It is known that the concentration of arcs improves. That is, it is known that the characteristics of the arc change depending on the polishing direction. However, the conventional electrode rod polisher has a problem in that the polishing directions are always the same and the electrode rods A having different polishing directions cannot be obtained.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、従前の電極
棒研磨機に於ける上記乃至の如き問題を解決せんと
するものであり、研磨盤や電極棒ガイドの交換を必要と
することなく、電極棒の研磨角度を任意に変更できると
共に、直径の異なる複数の電極棒を研磨加工することが
でき、然も電極棒先端を所望の形状に研磨加工できると
共に、研磨方向も任意に変えられるようにした電極棒研
磨機を提供するものである。SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems in the conventional electrode rod polishing machine, and does not require replacement of the polishing plate or the electrode rod guide. The polishing angle of the electrode rod can be changed arbitrarily, and a plurality of electrode rods having different diameters can be polished, and the tip of the electrode rod can be polished into a desired shape, and the polishing direction can be changed arbitrarily. The electrode rod polishing machine is provided.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成する為
に、本発明の請求項１に記載の電極棒研磨機は、ケース
本体と、ケース本体内に傾斜姿勢若しくは水平姿勢で配
設されたモータと、モータの駆動軸に取り付けられ、研
磨面を有する研磨盤と、研磨盤の上方に配置され、ケー
ス本体にモータの軸線方向へ揺動自在で且つ研磨面に対
して角度調整自在に支持された角度調整プレートと、角
度調整プレートにモータの軸線に対して直交し且つ水平
方向へ移動調整自在に支持されたガイド体と、ガイド体
に下端部をケース本体内へ突出せしめた状態で挿通支持
され、研磨盤の研磨面に対向可能で且つ内径の夫々異な
る複数の電極棒挿通孔を備えた電極棒ガイドとから構成
したものである。In order to achieve the above object, the electrode rod polishing machine according to claim 1 of the present invention is provided with a case main body and an inclined posture or a horizontal posture inside the case main body. A motor, a polishing disk attached to the drive shaft of the motor and having a polishing surface, and arranged above the polishing disk, supported by the case body so as to be swingable in the axial direction of the motor and adjustable in angle with respect to the polishing surface. The angle adjustment plate, the guide body that is supported by the angle adjustment plate at right angles to the axis of the motor and is horizontally movable, and the guide body is inserted with the lower end protruding into the case body. And an electrode rod guide having a plurality of electrode rod insertion holes that are supported and can face the polishing surface of the polishing plate and have different inner diameters.
【０００９】又、本発明の請求項２に記載の電極棒研磨
機は、ケース本体と、ケース本体内に傾斜姿勢若しくは
水平姿勢で配設されたモータと、モータの駆動軸に取り
付けられ、研磨面を有する研磨盤と、研磨盤の上方に配
置され、ケース本体にモータの軸線方向へ揺動自在で且
つ研磨面に対して角度調整自在に支持された角度調整プ
レートと、角度調整プレート上にモータの軸線に対して
直交し且つ水平方向へ移動調整自在に支持されたガイド
体と、ガイド体に下端部をケース本体内へ突出せしめた
状態で回転可能且つ着脱自在に挿通支持され、電極棒を
その先端が研磨面へ当接する状態で保持し得る縮拡径可
能なコレットチャックを備えた電極棒ホルダーとから構
成したものである。The electrode rod polishing machine according to a second aspect of the present invention is attached to a case body, a motor arranged in the case body in an inclined posture or a horizontal posture, and a drive shaft of the motor to be polished. A polishing plate having a surface, an angle adjusting plate disposed above the polishing plate and swingably supported in the case main body in the axial direction of the motor and capable of adjusting the angle with respect to the polishing surface, and the angle adjusting plate. A guide body that is orthogonal to the axis of the motor and is supported so that it can be moved and adjusted in the horizontal direction. The guide body is rotatably and detachably inserted and supported with its lower end protruding into the case body. And an electrode rod holder provided with a collet chuck capable of contracting and expanding the diameter thereof so that the tip thereof can be held in contact with the polishing surface.
【００１０】[0010]
【作用】電極棒の先端部を研磨加工するには、先ず電極
棒先端が所定の角度に研磨されるように角度調整プレー
トの傾斜角度を調整する。次に、研磨加工する電極棒
を、電極棒ガイドの電極棒挿通孔へ上方より挿入する。
電極棒を電極棒挿通孔に挿入したら、ガイド体等を調整
して電極棒先端を研磨盤の研磨面に当接させる。その
後、研磨盤を高速回転させると、電極棒は研磨面により
研磨されると共に、研磨盤から接触回転力を受けること
によって、低速で回転しつつ順次研磨されて行く。電極
棒先端部の研磨が進行するに伴い、電極棒は電極棒ガイ
ドの電極棒挿通孔内を自重により降下し、先端部は自動
的に所定の形状に研磨されて行く。To polish the tip of the electrode rod, the tilt angle of the angle adjusting plate is adjusted so that the tip of the electrode rod is polished to a predetermined angle. Next, the electrode rod to be polished is inserted into the electrode rod insertion hole of the electrode rod guide from above.
After inserting the electrode rod into the electrode rod insertion hole, the guide body or the like is adjusted so that the tip of the electrode rod is brought into contact with the polishing surface of the polishing plate. After that, when the polishing disc is rotated at a high speed, the electrode rod is polished by the polishing surface, and is subjected to contact rotational force from the polishing disc, so that the electrode rod is sequentially rotated while rotating at a low speed. As the polishing of the electrode rod tip portion progresses, the electrode rod descends by its own weight in the electrode rod insertion hole of the electrode rod guide, and the tip portion is automatically polished into a predetermined shape.
【００１１】本発明の電極棒研磨機は、角度調整プレー
トの傾斜角度を調整することによって、研磨面に当接す
る電極棒の傾斜角度を変えることができ、電極棒先端を
所定の角度に研磨加工することができる。又、電極棒ガ
イドが内径の夫々異なる電極棒挿通孔を備えている為、
直径の異なる電極棒でも、電極棒ガイドを交換すること
なく、電極棒の研磨加工を行える。更に、ガイド体等を
移動調整して電極棒先端と研磨盤の研磨面との接触位置
を変えることができ、これによって研磨方向を任意に変
えられる。その結果、電極棒先端の外周面（テーパ面）
に、軸芯方向に沿う筋や軸芯に直交する方向の筋、或い
はスパイラル状の筋を夫々形成することができ、アーク
の性質を変えることができる。その上、電極棒先端を円
錐状に研磨加工した後、角度調整プレートの傾斜角度を
別の傾斜角度に調整し、この状態で更に電極棒先端を円
錐状に研磨加工することによって、電極棒先端部に研磨
角度の異なる二つのテーパを形成することができる。即
ち、電極棒先端を２段研磨することができる。又、平板
状の主研磨面及びテーパ状の副研磨面を備えた研磨盤を
使用し、電極棒先端部を主研磨面及び副研磨面の両方に
当接させ、この状態で研磨加工することによって、２段
研磨を一回の研磨加工により行うこともできる。In the electrode rod polishing machine of the present invention, the inclination angle of the electrode rod contacting the polishing surface can be changed by adjusting the inclination angle of the angle adjusting plate, and the tip of the electrode rod is polished to a predetermined angle. can do. Also, since the electrode rod guide has electrode rod insertion holes with different inner diameters,
Even for electrode rods having different diameters, the electrode rods can be polished without changing the electrode rod guide. Furthermore, the contact position between the tip of the electrode rod and the polishing surface of the polishing plate can be changed by adjusting the movement of the guide body or the like, whereby the polishing direction can be arbitrarily changed. As a result, the outer peripheral surface (tapered surface) of the tip of the electrode rod
In addition, it is possible to form a line along the axial direction, a line in a direction orthogonal to the axial line, or a spiral line, respectively, and it is possible to change the nature of the arc. In addition, after the tip of the electrode rod is conically polished, the inclination angle of the angle adjustment plate is adjusted to another inclination angle, and in this state, the tip of the electrode rod is further conically polished so that the tip of the electrode rod is Two tapers having different polishing angles can be formed on the part. That is, the tip of the electrode rod can be polished in two steps. In addition, using a polishing board having a flat main polishing surface and a tapered sub polishing surface, the tip of the electrode rod is brought into contact with both the main polishing surface and the sub polishing surface, and polishing is performed in this state. Therefore, the two-step polishing can also be performed by a single polishing process.
【００１２】一方、電極棒ガイドに換えて電極棒を保持
し得る電極棒ホルダーを使用して電極棒先端を研磨加工
する場合には、前記と同様に角度調整プレートの傾斜角
度を調整したり、ガイド体を調整して電極棒先端と研磨
盤の研磨面との接触位置を変えたりすることによって、
電極棒先端を円錐形状や裁頭円錐形状に研磨加工した
り、或いは電極棒先端を２段研磨することができ、且つ
研磨方向も任意に変更することができる。又、電極棒ホ
ルダーを使用した場合には、これが電極棒を保持固定で
きる為、極短い電極棒でも研磨加工することができる。
更に、電極棒ホルダーに保持された電極棒の突出量や研
磨量を設定ゲージで調整することによって、電極棒の定
量研磨を行うこともできる。On the other hand, when the tip of the electrode rod is polished by using the electrode rod holder capable of holding the electrode rod instead of the electrode rod guide, the inclination angle of the angle adjusting plate is adjusted as described above, By adjusting the guide body and changing the contact position between the tip of the electrode rod and the polishing surface of the polishing plate,
The tip of the electrode rod can be polished into a conical shape or a truncated cone shape, or the tip of the electrode rod can be polished in two steps, and the polishing direction can be arbitrarily changed. Further, when the electrode rod holder is used, it can hold and fix the electrode rod, so that even an extremely short electrode rod can be polished.
Furthermore, the electrode rod can be quantitatively polished by adjusting the protrusion amount and the polishing amount of the electrode rod held by the electrode rod holder with a setting gauge.
【００１３】[0013]
【実施例】以下、本発明の各実施例を図面に基づいて詳
細に説明する。図１乃至図９は本発明の第１実施例に係
る電極棒研磨機を示すものであり、当該電極棒研磨機
は、ケース本体１、モータ２、研磨盤３、角度調整プレ
ート４、ガイド体５、電極棒ガイド６及び設定ゲージ７
等から構成されている。尚、図１乃至図５に於いて、Ａ
は電極棒、８はスイッチ、９はタイマー、１０はヒュー
ズ、１１は防塵カバー、１２はゴム足、１３は電源コー
ドである。Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 9 show an electrode rod polishing machine according to a first embodiment of the present invention. The electrode rod polishing machine comprises a case body 1, a motor 2, a polishing plate 3, an angle adjusting plate 4 and a guide body. 5, electrode rod guide 6 and setting gauge 7
Etc. Incidentally, in FIG. 1 to FIG.
Is an electrode rod, 8 is a switch, 9 is a timer, 10 is a fuse, 11 is a dustproof cover, 12 is rubber feet, and 13 is a power cord.
【００１４】前記ケース本体１は、図５に示す如く、鋼
板若しくはプラスチック材により前面が開放された箱状
に形成されて居り、該ケース本体１内には仕切り壁１ａ
が傾斜姿勢で設けられている。又、ケース本体１の前面
開口には、図３に示す如く、電極棒Ａの先端部が挿入可
能な穴１４ａを有するプラスチック製の透明な安全カバ
ー１４が着脱自在に取り付けられている。更に、ケース
本体１の側壁には、電極棒Ａを側壁から傾斜姿勢でケー
ス本体１内へ挿入して研磨盤３の外周縁部に当接させ得
る電極棒挿入用ガイド孔１ｂが形成されている。尚、図
２及び図５に於いて、１ｃはケース本体１の上壁に形成
されたガイド穴、１ｄはケース本体１の上壁に形成され
て角度調整プレート４の一部が挿入されるスリット状の
切欠である。As shown in FIG. 5, the case body 1 is formed of a steel plate or a plastic material in the shape of a box whose front surface is open. The case body 1 has a partition wall 1a.
Is installed in an inclined posture. Further, as shown in FIG. 3, a transparent plastic safety cover 14 having a hole 14a into which the tip of the electrode rod A can be inserted is detachably attached to the front opening of the case body 1. Further, on the side wall of the case main body 1, there is formed an electrode rod insertion guide hole 1b through which the electrode rod A can be inserted into the case main body 1 from the side wall in an inclined posture and brought into contact with the outer peripheral edge of the polishing plate 3. There is. 2 and 5, 1c is a guide hole formed in the upper wall of the case body 1 and 1d is a slit formed in the upper wall of the case body 1 into which a part of the angle adjusting plate 4 is inserted. It is a notch.
【００１５】前記モータ２は、図５に示す如く、その駆
動軸２ａが安全カバー１４側を向く姿勢で且つ１０°の
傾斜角αでもってケース本体１の仕切り壁１ａにボルト
・ナットにより支持固定されて居り、該駆動軸２ａには
段付きの研磨盤ホルダー１５が止めネジ１６によって固
定されている。又、モータ２は、タイマー９により運転
時間が制御されて居り、一定時間運転されると、自動的
に停止するようになっている。尚、本実施例では、モー
タ２にはＡＣ１００Ｖ、５０／６０ＨＺ、６０／７０Ｗ
のモータ２が使用されている。As shown in FIG. 5, the motor 2 is supported and fixed to the partition wall 1a of the case main body 1 by bolts and nuts with the drive shaft 2a thereof facing the safety cover 14 and at an inclination angle α of 10 °. A stepped polishing plate holder 15 is fixed to the drive shaft 2a by a set screw 16. Further, the motor 2 has its operating time controlled by a timer 9, and automatically stops when it is operated for a certain period of time. In this embodiment, the motor 2 has AC100V, 50 / 60HZ, 60 / 70W.
Motor 2 is used.
【００１６】前記研磨盤３は、円盤状を呈して居り、図
５に示すように研磨面３′が外方を向く姿勢で研磨盤ホ
ルダー１５の段部へ嵌合され、研磨盤押え１７及び固定
ネジ１８によって研磨盤ホルダー１５へ着脱自在に固定
されている。又、研磨盤３の研磨面３′は、断面視に於
いて平面状の主研磨面３ａと、主研磨面３ａの内方に位
置してテーパ状の副研磨面３ｂとから成り、該副研磨面
３ｂは主研磨面３ａに対して３０°の傾斜角度でもって
傾斜している。更に、研磨盤３の外周縁部は、図９に示
すように斜めにカットされて鋭角形状に形成されて居
り、この外周縁部で電極棒Ａを切断できるようになって
いる。尚、研磨盤３には所謂ダイヤモンド砥粒製の研磨
盤３が用いられて居り、本実施例では砥粒の粒度の比較
的細かい研磨部材から成る研磨盤３が使用されている。The polishing plate 3 has a disk shape, and is fitted to the step portion of the polishing plate holder 15 with the polishing surface 3'outward as shown in FIG. It is removably fixed to the polishing plate holder 15 by a fixing screw 18. Further, the polishing surface 3'of the polishing disk 3 is composed of a main polishing surface 3a which is flat in a sectional view and a sub polishing surface 3b which is tapered inside the main polishing surface 3a. The polishing surface 3b is inclined at an inclination angle of 30 ° with respect to the main polishing surface 3a. Further, as shown in FIG. 9, the outer peripheral edge portion of the polishing plate 3 is obliquely cut to form an acute angle shape, and the electrode rod A can be cut at this outer peripheral edge portion. Incidentally, a so-called diamond abrasive grain polishing disc 3 is used as the polishing disc 3, and in this embodiment, the polishing disc 3 made of a polishing member having a relatively fine abrasive grain size is used.
【００１７】前記角度調整プレート４は、研磨盤３の上
方に位置してケース本体１の外方に配置されて居り、ケ
ース本体１にモータ２の軸線方向へ揺動自在で且つ研磨
盤３の研磨面３′に対して角度調整自在に支持されてい
る。即ち、角度調整プレート４は、図６に示す如く、下
端部がケース本体１の左右側壁に支持ピン１９により回
動自在に支持された左右の板状の回動部４ａと、回動部
４ａ間に連設されてケース本体１の上方に位置する板状
の支持部４ｂとから成る。この角度調整プレート４は、
図９に示す如く、その揺動中心（支持ピン１９の軸芯
Ｏ）が研磨盤３の中心よりも上方位置で且つ主研磨面３
ａと同一平面上に位置するようにケース本体１の両側壁
に揺動自在に支持されて居り、支持ピン１９を中心にし
てモータ２の軸線方向へ揺動自在となっている。又、角
度調整プレート４の一方の回動部４ａには、図１に示す
如く、支持ピン１９を中心とする円弧状のガイド孔４ｃ
が形成されて居り、該ガイド孔４ｃにはケース本体１に
螺挿支持された角度調整ネジ２０が挿通されている。更
に、角度調整プレート４の一方の回動部４ａには、ケー
ス本体１の側壁に表示形成した角度調整目盛２１に沿っ
て移動する鋭角状の指針部４ａ′が一体的に形成されて
居り、この指針部４ａ′を角度調整用目盛２１に合わせ
ることによって、角度調整プレート４の傾斜角度を任意
の値に正確に調整することができるようになっている。
而して、角度調整プレート４は、角度調整ネジ２０を弛
めて回動部４ａを支持ピン１９を中心にして揺動させる
ことによって、所定の傾斜角度に変更することができ、
又、角度調整ネジ２０を締め付けることによって、所定
の傾斜角度でケース本体１側へ固定することができる。
本実施例では、角度調整プレート４は、３０°だけ揺動
するように構成されて居り、図９に示すように支持部４
ｂの垂線Ｌと研磨盤３の主研磨面３ａとの為す角度βを
０°〜３０°の範囲で調整できるようになっている。
尚、図６及び図９に於いて、４ｄは支持部４ｂに形成さ
れてケース本体１の幅方向に沿うホルダー用長穴、４ｅ
は支持部４ｂに形成されてホルダー用長穴４ｄに沿って
形成されたスリット孔である。The angle adjusting plate 4 is located above the polishing platen 3 and is arranged outside the case body 1. The angle adjusting plate 4 is swingable in the case body 1 in the axial direction of the motor 2 and the polishing plate 3 is mounted on the case body 1. The polishing surface 3'is supported so that its angle can be adjusted. That is, as shown in FIG. 6, the angle adjusting plate 4 includes a left and right plate-like rotating portion 4a whose lower end is rotatably supported by the supporting pins 19 on the left and right side walls of the case body 1, and the rotating portion 4a. It is composed of a plate-shaped support portion 4b which is continuously provided between and is located above the case body 1. This angle adjustment plate 4
As shown in FIG. 9, the center of the swing (the axis O of the support pin 19) is located above the center of the polishing plate 3 and the main polishing surface 3
It is swingably supported by both side walls of the case body 1 so as to be located on the same plane as a, and is swingable in the axial direction of the motor 2 about the support pin 19. Further, as shown in FIG. 1, the one rotation portion 4a of the angle adjusting plate 4 has an arc-shaped guide hole 4c centered on the support pin 19.
Is formed, and the angle adjusting screw 20 screwed and supported by the case body 1 is inserted into the guide hole 4c. Further, an acute-angled pointer portion 4a 'that moves along the angle adjustment scale 21 formed on the side wall of the case body 1 is integrally formed on the one rotation portion 4a of the angle adjustment plate 4, By adjusting the pointer portion 4a 'to the angle adjusting scale 21, the inclination angle of the angle adjusting plate 4 can be accurately adjusted to an arbitrary value.
Thus, the angle adjusting plate 4 can be changed to a predetermined inclination angle by loosening the angle adjusting screw 20 and swinging the rotating portion 4a around the support pin 19.
Further, by tightening the angle adjusting screw 20, it can be fixed to the case body 1 side at a predetermined inclination angle.
In the present embodiment, the angle adjusting plate 4 is configured to swing by 30 °, and as shown in FIG.
The angle β formed by the vertical line L of b and the main polishing surface 3a of the polishing plate 3 can be adjusted within the range of 0 ° to 30 °.
6 and 9, 4d is a slotted hole for a holder formed on the support portion 4b and extending along the width direction of the case body 1 and 4e.
Is a slit hole formed in the support portion 4b and formed along the holder long hole 4d.
【００１８】前記ガイド体５は、角度調整プレート４上
にモータ２の軸線に対して直交し且つ水平方向へ移動調
整自在に支持されて居り、後述する移動調整機構２２に
よって研磨盤３の略半径分の長さだけ移動調整できるよ
うになっている。即ち、ガイド体５は、図５及び図６に
示す如く、角度調整プレート４の支持部４ｂ上面に摺動
自在に載置された矩形状のガイド板５ａと、ガイド板５
ａの略中央部に挿通状態で固定支持され、支持部４ｂの
ホルダー用長穴４ｄ及びケース本体１のガイド穴１ｃに
挿通された筒状のホルダー５ｂとから成り、ガイド板５
ａに固定した一対のガイド軸５ｃを支持部４ｂのスリッ
ト孔４ｅに摺動自在に挿通することによって、モータ２
の軸線に対して直交する水平方向へ移動自在となってい
る。尚、ホルダー５ｂは、その軸芯が支持ピン１９の軸
芯Ｏと直交するように、ガイド板５ａへ取り付けられて
いる。そして、ガイド体５は、移動調整機構２２によっ
てモータ２の軸線に対して直交する水平方向へ移動調整
できるようになっている。この移動調整機構２２は、図
６に示す如く、ガイド板５ａの下面に固定されて支持部
４ｂのホルダー用長穴４ｄ内に位置するネジ駒２２ａ
と、角度調整プレート４の回動部４ａに回転自在且つ軸
線方向移動不能に支持され、ネジ駒２２ａに螺挿された
調整ネジ２２ｂとから成り、調整ネジ２２ｂを回転操作
することによって、ガイド体５を水平方向へ移動調整で
きるようになっている。本実施例では、移動調整機構２
２は、ガイド体５のホルダー５ｂを研磨盤３の中心部の
上方位置から左側外周縁部（図６の左側）の上方位置ま
で移動できるように構成されて居り、ガイド体５を約２
５ｍｍのストロークで往復移動できるようになってい
る。この移動調整機構２２は、ネジ機構を使用している
為、ガイド体５を微動調整することができ、その移動量
を正確に調整することができる。尚、図３に於いて、２
３はガイド板５ａに取り付けられ、支持部４ｂの前端面
に表示形成した移動量調整目盛２４に沿って移動する指
針である。The guide body 5 is supported on the angle adjusting plate 4 so as to be movable and adjustable in a direction orthogonal to the axis of the motor 2 and in the horizontal direction. It can be moved and adjusted by the length of a minute. That is, as shown in FIGS. 5 and 6, the guide body 5 includes a rectangular guide plate 5a slidably mounted on the upper surface of the support portion 4b of the angle adjusting plate 4, and a guide plate 5a.
The guide plate 5 is fixedly supported in a substantially central portion of a in a state of being inserted, and includes a long hole 4d for a holder of the support portion 4b and a cylindrical holder 5b inserted into a guide hole 1c of the case body 1.
The pair of guide shafts 5c fixed to a is slidably inserted into the slit holes 4e of the support portion 4b, whereby the motor 2
It is movable in the horizontal direction orthogonal to the axis of the. The holder 5b is attached to the guide plate 5a so that its axis is orthogonal to the axis O of the support pin 19. The guide body 5 can be moved and adjusted by the movement adjusting mechanism 22 in the horizontal direction orthogonal to the axis of the motor 2. As shown in FIG. 6, the movement adjusting mechanism 22 is a screw piece 22a fixed to the lower surface of the guide plate 5a and located in the holder elongated hole 4d of the supporting portion 4b.
And an adjusting screw 22b that is rotatably supported by the rotating portion 4a of the angle adjusting plate 4 and is immovable in the axial direction, and is screwed into the screw piece 22a. By rotating the adjusting screw 22b, the guide body is rotated. 5 can be moved and adjusted in the horizontal direction. In this embodiment, the movement adjusting mechanism 2
2 is configured so that the holder 5b of the guide body 5 can be moved from a position above the center of the polishing platen 3 to a position above the left peripheral edge (left side in FIG. 6).
It can be moved back and forth with a stroke of 5 mm. Since the movement adjusting mechanism 22 uses the screw mechanism, the guide body 5 can be finely adjusted, and the moving amount thereof can be accurately adjusted. In addition, in FIG.
Reference numeral 3 is a pointer which is attached to the guide plate 5a and moves along the movement amount adjusting scale 24 displayed and formed on the front end surface of the support portion 4b.
【００１９】前記電極棒ガイド６は、ガイド体５に下端
部をケース本体１内へ突出せしめた状態で回転自在且つ
着脱自在に挿通支持されて居り、研磨盤３の研磨面３′
に対向し且つ内径の夫々異なる複数の電極棒挿通孔６ｃ
を備えている。即ち、電極棒ガイド６は、図６乃至図８
に示す如く、ガイド体５のホルダー５ｂに回転自在に挿
入される軸部６ａと、軸部６ａの上端部に連設されてホ
ルダー５ｂの上面に当接するフランジ部６ｂとから成
り、該軸部６ａには内径の夫々異なる複数個の電極棒挿
通孔６ｃが穿設されている。本実施例では、電極棒挿通
孔６ｃは、図８に示すように軸部６ａに一定の角度（４
５°、６０°及び９０°間隔）で六つ形成されて居り、
内径の小さい電極棒挿通孔６ｃほど軸部６ａの軸芯から
順次遠ざかる位置に形成され、且つ各電極棒挿通孔６ｃ
の内周面の一部が軸部６ａの同心円Ｃ上に位置するよう
になっている。尚、各電極棒挿通孔６ｃは、その内径が
電極棒Ａの外径よりも０．１ｍｍ大きめに設定されて居
り、電極棒Ａを摺動自在に保持できるようになってい
る。又、各電極棒挿通孔６ｃの内径は、１．１ｍｍ、
１．３ｍｍ、１．７ｍｍ、２．１ｍｍ、２．５ｍｍ、
３．３ｍｍに夫々設定されている。The electrode rod guide 6 is rotatably and detachably inserted and supported with the lower end of the electrode rod guide 6 protruding into the case body 1, and the polishing surface 3'of the polishing plate 3 is provided.
Electrode rod insertion holes 6c facing each other and having different inner diameters
Is equipped with. That is, the electrode rod guide 6 has the structure shown in FIGS.
As shown in FIG. 3, the shaft portion 6a is rotatably inserted into the holder 5b of the guide body 5, and the flange portion 6b is continuously provided on the upper end portion of the shaft portion 6a and abuts on the upper surface of the holder 5b. A plurality of electrode rod insertion holes 6c having different inner diameters are formed in 6a. In this embodiment, the electrode rod insertion hole 6c is formed at a constant angle (4
There are 6 formed at 5 °, 60 ° and 90 ° intervals,
The electrode rod insertion hole 6c having a smaller inner diameter is formed at a position further away from the axis of the shaft portion 6a, and each electrode rod insertion hole 6c is formed.
A part of the inner peripheral surface of is positioned on the concentric circle C of the shaft portion 6a. The inner diameter of each electrode rod insertion hole 6c is set to be 0.1 mm larger than the outer diameter of the electrode rod A, so that the electrode rod A can be slidably held. The inner diameter of each electrode rod insertion hole 6c is 1.1 mm,
1.3mm, 1.7mm, 2.1mm, 2.5mm,
Each is set to 3.3 mm.
【００２０】そして、前記電極棒ガイド６は、これとホ
ルダー５ｂとの間に設けた係止機構２５によって、ホル
ダー５ｂに対して間欠回転するようになっていると共
に、各電極棒挿通孔６ｃが所定の位置を取り得るように
ホルダー５ｂ側へ係脱自在となっている。即ち、係止機
構２５は、図６に示す如く、電極棒ガイド６の軸部６ａ
の外周面に３０°間隔で形成された断面形状円錐形の係
止穴６ｄと、ホルダー５ｂに挿着された筒体２５ａと、
筒体２５ａ内へ移動自在に収納保持され、ホルダー５ｂ
の内周面へ突出可能で且つ係止穴６ｄへ係止可能なボー
ル２５ｂと、ボール２５ｂをホルダー５ｂの内周面側へ
突出するように付勢するスプリング２５ｃとから構成さ
れて居り、ボール２５ｂを軸部６ａの係止穴６ｄへ嵌合
させることによって、電極棒ガイド６をホルダー５ｂ側
へ係止できるようになっている。尚、スプリング２５ｃ
の附勢力や係止穴６ｄの深さ等は、ボール２５ｂが係止
穴６ｄに係止されている状態であっても、電極棒ガイド
６を一定以上の回転力で回転させれば、ボール２５ｂと
係止穴６ｄとの係止が外れて電極棒ガイド６を回転でき
るように設定されている。又、電極棒ガイド６は、ボー
ル２５ｂが各係止穴６ｄへ順次嵌合して行くことによっ
て、間欠回転することになる。The electrode rod guide 6 is adapted to intermittently rotate with respect to the holder 5b by a locking mechanism 25 provided between the electrode rod guide 6 and the holder 5b, and each electrode rod insertion hole 6c is It can be engaged and disengaged to the holder 5b side so as to take a predetermined position. That is, as shown in FIG. 6, the locking mechanism 25 includes the shaft portion 6a of the electrode rod guide 6.
A locking hole 6d having a conical sectional shape formed on the outer circumferential surface of the holder at intervals of 30 °, and a tubular body 25a inserted into the holder 5b,
It is movably accommodated and held in the cylindrical body 25a, and the holder 5b
Of the ball 25b that can project to the inner peripheral surface of the holder 5b and that can be locked in the locking hole 6d, and a spring 25c that urges the ball 25b to project toward the inner peripheral surface of the holder 5b. The electrode rod guide 6 can be locked to the holder 5b side by fitting 25b into the locking hole 6d of the shaft portion 6a. The spring 25c
Even if the ball 25b is locked in the locking hole 6d, the urging force of the electrode and the depth of the locking hole 6d are 25b and the locking hole 6d are disengaged from each other so that the electrode rod guide 6 can be rotated. Further, the electrode rod guide 6 is intermittently rotated as the balls 25b are sequentially fitted into the respective locking holes 6d.
【００２１】前記設定ケージ７は、図２に示す如く、ケ
ース本体１の上壁上面に表示形成された突出量調整目盛
２６と、ケース本体１に突出量調整目盛２６に沿って移
動調整自在に取り付けられた位置決め板２７と、位置決
め板２７を所定の位置で固定し得るボルト・ナット２８
とから成る。As shown in FIG. 2, the setting cage 7 is provided with a protrusion amount adjusting scale 26 formed on the upper surface of the upper wall of the case body 1, and the case body 1 can be moved and adjusted along the protrusion amount adjusting scale 26. The attached positioning plate 27 and the bolts and nuts 28 that can fix the positioning plate 27 at a predetermined position.
It consists of and.
【００２２】次に、前記電極棒研磨機を用いて電極棒Ａ
を研磨加工する場合について説明する。電極棒Ａの先端
部を円錐形状に仕上げる場合には、先ず電極棒Ａ先端の
角度が所定の角度になるように研磨角度を設定する。即
ち、角度調整ネジ２０を弛めて角度調整プレート４を支
持ピン１９を中心にして揺動させ、指針部４ａ′が角度
調整目盛２１の所定の値を指した位置で角度調整ネジ２
０を締め付ける。これによって、電極棒ガイド６等の傾
斜角度が変わり、電極棒ガイド６の電極棒挿通孔６ｃの
軸芯が研磨盤３の研磨面３′に対して所定の傾斜角度に
変更される。次に、研磨加工する電極棒Ａを、これの直
径に合う電極棒ガイド６の電極棒挿通孔６ｃへ上方より
挿入する。このとき、電極棒ガイド６は、内径の異なる
複数の電極棒挿通孔６ｃを備えている為、直径の異なる
数種類の電極棒Ａに対応することができ、至極便利であ
る。又、電極棒挿通孔６ｃの内径が電極棒Ａの外径より
も０．１ｍｍ大きめに形成されている為、電極棒Ａは電
極棒挿通孔６ｃに対して上下動自在となっている。電極
棒Ａを電極棒挿通孔６ｃに挿入したら、電極棒Ａ先端が
研磨盤３の主研磨面３ａのみに当接するように、電極棒
ガイド６をホルダー５ｂ内で回転操作すると共に、ガイ
ド体５を移動調整機構２２によって移動調整する。例え
ば、電極棒Ａ先端が、図６の点線位置及び図９の実線位
置に示すように主研磨面３ａの外周縁部で且つ上部位置
に当接するように電極棒ガイド６及び移動調整機構２２
を操作する。その後、スイッチ８をｏｎにして研磨盤３
を図６の矢印方向へ高速回転させる。これにより、電極
棒Ａは、主研磨面３ａと接触して研磨されると共に、研
磨盤３から接触回転力を受けることによって、低速で回
転しつつ順次研磨されて行く。このとき、電極棒ガイド
６は係止機構２５によってホルダー５ｂ側へ係止されて
いる為、電極棒Ａと共回りすることがない。電極棒Ａ先
端部の研磨が進行するに伴い、電極棒Ａは電極棒ガイド
６の電極棒挿通孔６ｃ内を自重により降下し、先端部は
自動的に円錐形に研磨されて行く。このとき、電極棒Ａ
が主研磨面３ａの上部位置に当接している為、円錐形に
形成された電極棒Ａの先端外周面（テーパ面）には図１
０（ハ）に示すような軸芯と直交する方向の筋が形成さ
れることになる。そして、一定時間研磨加工が行われる
と、タイマー９によりモータ２が自動的に停止し、研磨
が完了する。研磨が完了すると、電極棒Ａを電極棒ガイ
ド６から引き抜く。尚、研磨時間は、電極棒Ａの先端部
が完全に円錐形に研磨加工されるように設定されている
ことは勿論である。Next, using the above-mentioned electrode rod polishing machine, electrode rod A
The case of polishing is described. When finishing the tip end of the electrode rod A into a conical shape, first, the polishing angle is set so that the angle of the tip end of the electrode rod A becomes a predetermined angle. That is, the angle adjusting screw 20 is loosened and the angle adjusting plate 4 is swung about the support pin 19, and the angle adjusting screw 2 is moved at a position where the pointer portion 4a 'points to a predetermined value on the angle adjusting scale 21.
Tighten 0. As a result, the inclination angle of the electrode rod guide 6 and the like is changed, and the axis of the electrode rod insertion hole 6c of the electrode rod guide 6 is changed to a predetermined inclination angle with respect to the polishing surface 3'of the polishing board 3. Next, the electrode rod A to be polished is inserted from above into the electrode rod insertion hole 6c of the electrode rod guide 6 which matches the diameter of the electrode rod A. At this time, since the electrode rod guide 6 is provided with a plurality of electrode rod insertion holes 6c having different inner diameters, it is possible to accommodate several kinds of electrode rods A having different diameters, which is extremely convenient. Further, since the inner diameter of the electrode rod insertion hole 6c is formed to be 0.1 mm larger than the outer diameter of the electrode rod A, the electrode rod A is vertically movable with respect to the electrode rod insertion hole 6c. When the electrode rod A is inserted into the electrode rod insertion hole 6c, the electrode rod guide 6 is rotated in the holder 5b so that the tip of the electrode rod A contacts only the main polishing surface 3a of the polishing plate 3, and the guide member 5 is also moved. Is adjusted by the movement adjusting mechanism 22. For example, the electrode rod guide 6 and the movement adjusting mechanism 22 are arranged so that the tip of the electrode rod A abuts the outer peripheral edge portion of the main polishing surface 3a and the upper position as shown by the dotted line position in FIG. 6 and the solid line position in FIG.
To operate. After that, the switch 8 is turned on and the polishing machine 3
At high speed in the direction of the arrow in FIG. As a result, the electrode rod A is brought into contact with the main polishing surface 3a to be polished, and is subjected to a contact rotational force from the polishing plate 3 to be sequentially polished while being rotated at a low speed. At this time, since the electrode rod guide 6 is locked to the holder 5b side by the locking mechanism 25, it does not rotate together with the electrode rod A. As the tip portion of the electrode rod A progresses, the electrode rod A descends in the electrode rod insertion hole 6c of the electrode rod guide 6 by its own weight, and the tip portion is automatically polished into a conical shape. At this time, the electrode rod A
Is in contact with the upper position of the main polishing surface 3a, the outer peripheral surface (tapered surface) of the tip of the conical electrode rod A is shown in FIG.
A streak in the direction orthogonal to the axis as shown by 0 (C) is formed. When the polishing process is performed for a certain period of time, the motor 9 is automatically stopped by the timer 9 and the polishing is completed. When the polishing is completed, the electrode rod A is pulled out from the electrode rod guide 6. The polishing time is, of course, set so that the tip of the electrode rod A is completely conical.
【００２３】上記実施例に於いては、電極棒Ａ先端を主
研磨面３ａの外周縁部で且つ上部位置に当接させるよう
にしたが、電極棒Ａの先端を、前記傾斜角度のままで移
動調整機構２２等を操作して主研磨面３ａの側部位置
（図６の二点鎖線位置）や斜め上部位置（図６の一点鎖
線位置）に当接させるようにしても良い。この場合に
は、電極棒Ａ先端が上記電極棒Ａと同じ角度の円錐形に
形成されると共に、円錐形に形成された電極棒Ａの先端
外周面（テーパ面）には軸芯方向に沿う筋やスパイラル
状の筋が形成されることになる（図１０（イ）及び
（ロ）参照）。又、前記各位置に於いては、電極棒Ａが
持ち上げられる格好で研磨されることになり、電極棒Ａ
に無理な荷重が掛かると云うこともなく、電極棒Ａは良
好且つ円滑に研磨される。このように、主研磨面３ａに
当接する位置を変えることによって、研磨方向を任意に
変えることができる。その結果、電極棒Ａの先端外周面
（テーパ面）に任意の方向の筋を形成することができ、
アークの性質を変えることができる。In the above embodiment, the tip of the electrode rod A is brought into contact with the outer peripheral edge portion of the main polishing surface 3a and at the upper position, but the tip of the electrode rod A is kept at the inclination angle. The movement adjusting mechanism 22 or the like may be operated to bring the main polishing surface 3a into contact with the side position (the position indicated by the two-dot chain line in FIG. 6) or the diagonally upper position (the position indicated by the one-dot chain line in FIG. 6). In this case, the tip of the electrode rod A is formed in a conical shape having the same angle as the electrode rod A, and the outer peripheral surface (tapered surface) of the tip of the electrode rod A formed in the conical shape is along the axial direction. Muscles and spiral muscles are formed (see FIGS. 10A and 10B). Further, at each of the above-mentioned positions, the electrode rod A is polished so that it can be lifted up.
The electrode rod A is satisfactorily and smoothly polished without being excessively loaded. In this way, the polishing direction can be arbitrarily changed by changing the position in contact with the main polishing surface 3a. As a result, it is possible to form a line in an arbitrary direction on the outer peripheral surface (tapered surface) of the tip of the electrode rod A,
The nature of the arc can be changed.
【００２４】一方、電極棒Ａ先端部を角度が異なる別の
円錐形状に仕上げる場合には、角度調整プレート４を別
の角度に調整し、電極棒ガイド６及び移動調整機構２２
を操作して電極棒Ａ先端を主研磨面３ａのみに当接させ
れば良い。これによって、電極棒Ａ先端を角度の異なる
円錐形に仕上げることができる。この場合も、主研磨面
３ａへ当接する位置を変えることによって、研磨方向を
任意に変えることができる。On the other hand, when the tip of the electrode rod A is finished into another conical shape having different angles, the angle adjusting plate 4 is adjusted to another angle, and the electrode rod guide 6 and the movement adjusting mechanism 22 are adjusted.
Is operated to bring the tip of the electrode rod A into contact with only the main polishing surface 3a. As a result, the tip of the electrode rod A can be finished into a conical shape with different angles. Also in this case, the polishing direction can be arbitrarily changed by changing the position in contact with the main polishing surface 3a.
【００２５】又、電極棒Ａ先端部を図１１に示すように
２段研磨する（即ち、先端部に研磨角度の異なる二つの
テーパ面を形成する）場合には、先ず電極棒Ａ先端に角
度θ 1 のテーパ面が形成されるように角度調整プレート
４を角度調整すると共に、電極棒ガイド６及び移動調整
機構２２を操作して電極棒Ａ先端部が主研磨面３ａのみ
に当接するように調整し、この状態で上記と同様の操作
により、電極棒Ａ先端部を円錐形に研磨する。次に、電
極棒Ａ先端に角度θ2 のテーパ面が形成されるように角
度調整プレート４を角度調整すると共に、電極棒Ａ先端
部が主研磨面３ａのみに当接するように調整し、この状
態で電極棒Ａ先端部を円錐形に研磨する。これにより、
電極棒Ａの先端部は、図１１に示す如く、２段に研磨さ
れる。尚、角度調整プレート４の角度を任意に変えるこ
とによって、先端部に形成される二つのテーパ面の角度
を自由に変えることができる。As shown in FIG. 11, the tip of the electrode rod A is
Two-stage polishing (that is, two different polishing angles at the tip
In the case of forming a tapered surface), first of all, a corner is formed at the tip of the electrode rod A.
Degree θ 1Angle adjustment plate so that a tapered surface is formed
4 angle adjustment, electrode rod guide 6 and movement adjustment
By operating the mechanism 22, the tip of the electrode rod A is only the main polishing surface 3a.
Adjust so that it touches the
Thus, the tip of the electrode rod A is polished into a conical shape. Next,
Angle θ at the tip of pole A2Corners so that a tapered surface is formed
The angle of the degree adjusting plate 4 is adjusted and the tip of the electrode rod A is
Part so that it only contacts the main polishing surface 3a.
In this state, the tip of the electrode rod A is ground into a conical shape. This allows
The tip of the electrode rod A is polished in two stages as shown in FIG.
Be done. The angle of the angle adjustment plate 4 can be changed arbitrarily.
The angle between the two tapered surfaces formed at the tip by
Can be changed freely.
【００２６】上記実施例に於いては、電極棒Ａ先端部を
二回研磨加工して該先端部を２段研磨するようにした
が、図５に示す如く、角度調整プレート４、電極棒ガイ
ド６及び移動調整機構２２を夫々操作し、電極棒Ａ先端
部を研磨盤３の縦方向の中心線上で且つ主研磨面３ａ及
び副研磨面３ｂの両方に当接させ、この状態で電極棒Ａ
先端部を研磨加工するようにしても良い。この場合に
は、一回の研磨加工で電極棒Ａ先端部を２段研磨するこ
とができ、加工時間の短縮を図れる。又、図５に示す位
置で角度調整プレート４の角度を変えることによって、
先端部に形成される二つのテーパ面の角度を変えること
もできる。In the above embodiment, the tip of the electrode rod A is ground twice to polish the tip in two steps. However, as shown in FIG. 5, the angle adjusting plate 4 and the electrode rod guide are used. 6 and the movement adjusting mechanism 22 are respectively operated to bring the tip of the electrode rod A into contact with both the main polishing surface 3a and the sub-polishing surface 3b on the longitudinal centerline of the polishing disk 3, and in this state.
The tip may be polished. In this case, the tip portion of the electrode rod A can be polished in two stages by one polishing operation, and the processing time can be shortened. Further, by changing the angle of the angle adjusting plate 4 at the position shown in FIG.
It is also possible to change the angle between the two tapered surfaces formed at the tip.
【００２７】更に、電極棒Ａ先端部をテーパ面と平坦面
とから成る裁頭円錐形状に仕上げる場合には、先ず電極
棒Ａ先端部を上記と同様の操作により円錐状に研磨加工
する。次に、電極棒Ａを電極棒ガイド６から引き抜き、
電極棒Ａ先端部を図１に示すように安全カバー１４の穴
１４ａに挿入して先端を主研磨面３ａに当接させてフラ
ットに研磨すれば良い。Further, when the tip of the electrode rod A is to be finished into a truncated cone shape consisting of a tapered surface and a flat surface, the tip portion of the electrode rod A is first ground into a conical shape by the same operation as described above. Next, pull out the electrode rod A from the electrode rod guide 6,
The tip of the electrode rod A may be inserted into the hole 14a of the safety cover 14 as shown in FIG. 1, and the tip may be brought into contact with the main polishing surface 3a to be ground flat.
【００２８】そして、電極棒Ａを所定の長さに切断する
場合には、安全カバー１４をケース本体１から取り外
し、電極棒Ａを図２に示すようにケース本体１の側壁に
形成した電極棒挿入用ガイド孔１ｂから傾斜姿勢でケー
ス本体１内へ挿入し、研磨盤３の外周縁部に当接させ、
この状態で研磨盤３を回転させる。このとき、研磨盤３
の外周縁部は鋭角状に形成されている為、電極棒Ａは外
周縁部によって簡単且つ良好に切断される。When the electrode rod A is cut into a predetermined length, the safety cover 14 is removed from the case body 1 and the electrode rod A is formed on the side wall of the case body 1 as shown in FIG. Inserted into the case body 1 in an inclined posture from the insertion guide hole 1b, and abutting against the outer peripheral edge of the polishing plate 3,
In this state, the polishing board 3 is rotated. At this time, the polishing board 3
Since the outer peripheral edge portion is formed in an acute angle, the electrode rod A can be easily and satisfactorily cut by the outer peripheral edge portion.
【００２９】図１２乃至図１７は、本発明の第２実施例
に係る電極棒研磨機を示し、当該電極棒研磨機は、電極
棒ガイド６に換えて電極棒ホルダー２９を使用し、これ
をガイド体５のホルダー５ｂに回転自在且つ着脱自在に
挿入するようにしたものであり、ケース本体１、モータ
２、研磨盤３、角度調整プレート４、ガイド体５、電極
棒ホルダー２９及び設定ケージ７等から構成されてい
る。尚、電極棒ホルダー２９以外の各構成は、上記第１
実施例のものと全く同一構造に構成されて居り、第１実
施例のものと同じ部位にはこれと同一の参照番号を使用
している。FIGS. 12 to 17 show an electrode rod polishing machine according to a second embodiment of the present invention. The electrode rod polishing machine uses an electrode rod holder 29 instead of the electrode rod guide 6, and uses this electrode rod holder 29. The guide body 5 is rotatably and detachably inserted into the holder 5b. The case body 1, the motor 2, the polishing plate 3, the angle adjusting plate 4, the guide body 5, the electrode rod holder 29 and the setting cage 7 are provided. Etc. The components other than the electrode rod holder 29 are the same as those in the first embodiment.
The structure is exactly the same as that of the first embodiment, and the same reference numerals are used for the same parts as those of the first embodiment.
【００３０】前記電極棒ホルダー２９は、ガイド体５の
ホルダー５ｂに回転自在且つ着脱自在に挿着され、電極
棒Ａをその先端部が研磨盤３の研磨面３′へ当接する状
態で着脱自在に保持するものである。即ち、電極棒ホル
ダー２９は、図１６及び図１７に示す如く、ホルダー５
ｂに回転自在且つ着脱自在に挿入される筒状のチャック
ガイド３０と、チャックガイド３０の先端側に挿入され
て電極棒挿入孔３１ａを有する縮拡径可能なコレットチ
ャック３１と、チャックガイド３０の基端に螺挿され、
先端がコレットチャック３１に当接して該コレットチャ
ック３１をチャックガイド３０の先端側方向へ押し込む
筒状のチャックネジ３２とから成る。又、チャックガイ
ド３０の先端部内周面にはテーパ状内周面３０ａが形成
されている。更に、コレットチャック３１の先端部には
割り溝３１ｂが、先端部外周面にはチャックガイド３０
のテーパ状内周面３０ａに当接するテーパ状外周面３１
ｃが夫々形成されている。而して、電極棒ホルダー２９
は、コレットチャック３１の電極棒挿入孔３１ａに電極
棒Ａを挿通してチャックネジ３２を締め付ける方向へ回
転させると、コレットチャック３１がチャックガイド３
０の先端側方向へ押し込まれて縮径し、電極棒Ａを保持
固定することができる。この電極棒ホルダー２９は、コ
レットチャック３１が縮拡径する為、直径の異なる電極
棒Ａでも良好且つ確実に保持固定することができる。
尚、コレットチャック３１は、電極棒挿入孔３１ａの内
径の異なるものを数種類用意し、該コレットチャック３
１を交換することにより、外径が極端に異なる電極棒Ａ
に対応できるようにしても良い。The electrode rod holder 29 is rotatably and detachably inserted into the holder 5b of the guide body 5, and the electrode rod A is detachable with its tip end abutting against the polishing surface 3'of the polishing plate 3. To hold. That is, the electrode rod holder 29 is, as shown in FIGS.
The cylindrical chuck guide 30 that is rotatably and detachably inserted in b, the collet chuck 31 that is inserted on the tip end side of the chuck guide 30 and has the electrode rod insertion hole 31a, and that is capable of contracting and expanding the diameter, and the chuck guide 30. It is screwed into the base end,
The tip of the collet chuck 31 is in contact with the collet chuck 31, and the collet chuck 31 is pushed in the direction of the tip of the chuck guide 30. Further, a tapered inner peripheral surface 30a is formed on the inner peripheral surface of the tip portion of the chuck guide 30. Further, a split groove 31b is provided at the tip of the collet chuck 31, and a chuck guide 30 is provided at the outer peripheral surface of the tip.
Tapered outer peripheral surface 31 abutting on the tapered inner peripheral surface 30a
c are formed respectively. Thus, the electrode rod holder 29
Inserts the electrode rod A into the electrode rod insertion hole 31a of the collet chuck 31 and rotates the chuck screw 32 in the tightening direction.
The electrode rod A can be held and fixed by being pushed in the direction of the tip end of 0 to reduce the diameter. In this electrode rod holder 29, since the collet chuck 31 is expanded and contracted, even electrode rods A having different diameters can be satisfactorily and reliably held and fixed.
As the collet chuck 31, several kinds having different inner diameters of the electrode rod insertion holes 31a are prepared.
Electrode rod A with extremely different outer diameter by exchanging 1
You may be able to correspond to.
【００３１】前記設定ケージ７は、電極棒ホルダー２９
に保持された電極棒Ａの突出量を調整し、且つ電極棒Ａ
の研磨量を設定するものであり、突出量調整目盛２６
と、位置決め板２７と、ボルト・ナット２８とから構成
されて居り、電極棒ホルダー２９の先端をケース本体１
の側面に当接させると共に、電極棒Ａ先端を予め所定の
位置にセットした位置決め板２７に当接させることによ
って、電極棒ホルダー２９からの電極棒Ａの突出量を調
整できるようになっている。尚、設定ケージ７によって
研磨量を設定する場合には、先ず電極棒ホルダー２９に
より先端部が所定長さだけ突出する状態で電極棒Ａを保
持固定する。次に、電極棒ホルダー２９をガイド体５の
ホルダー５ｂに挿入して研磨盤３により試し研磨を行
い、電極棒Ａの先端が完全な円錐形状に研磨されている
かを確認する。そして、電極棒Ａが完全に研磨された
ら、電極棒ホルダー２９をホルダー５ｂから引き抜いて
電極棒ホルダー２９の先端をケース本体１の側壁に当接
させ、電極棒Ａの先端と位置決め板２７との間隔が所定
の値（例えば０．５ｍｍ）になるように位置決め板２７
をボルト・ナット２８により移動調整する。電極棒Ａの
研磨量は前記間隙によって決定されることになる。The setting cage 7 has an electrode rod holder 29.
The amount of protrusion of the electrode rod A held by the
For setting the polishing amount of the
And a positioning plate 27 and bolts and nuts 28. The tip of the electrode rod holder 29 is attached to the case body 1
It is possible to adjust the amount of protrusion of the electrode rod A from the electrode rod holder 29 by contacting the tip of the electrode rod A with the positioning plate 27 set in advance at a predetermined position while contacting the side face of the electrode rod A. . When setting the polishing amount by the setting cage 7, first, the electrode rod A is held and fixed by the electrode rod holder 29 in a state where the tip portion projects by a predetermined length. Next, the electrode rod holder 29 is inserted into the holder 5b of the guide body 5 and trial polishing is performed by the polishing plate 3 to confirm whether the tip of the electrode rod A is polished into a perfect conical shape. Then, when the electrode rod A is completely polished, the electrode rod holder 29 is pulled out from the holder 5b, the tip of the electrode rod holder 29 is brought into contact with the side wall of the case body 1, and the tip of the electrode rod A and the positioning plate 27 are separated. Positioning plate 27 so that the interval becomes a predetermined value (for example, 0.5 mm)
Are adjusted by the bolts and nuts 28. The polishing amount of the electrode rod A is determined by the gap.
【００３２】次に、前記電極棒研磨機を用いて電極棒Ａ
を研磨加工する場合について説明する。電極棒Ａの先端
部を研磨加工する場合には、先ず電極棒Ａの先端部を所
定の角度に研磨加工できるように角度調整プレート４の
傾斜角度を調整する。次に、電極棒Ａを電極棒ホルダー
２９のコレットチャック３１の電極棒挿入孔３１ａに挿
入し、電極棒Ａをコレットチャック３１の先端から所定
長さだけ突出させた後、チャックネジ３２を軽く締め付
けてコレットチャック３１を若干量縮径させ、電極棒Ａ
を回転自在且つ摺動自在な状態に保持する。そして、電
極棒ホルダー２９をガイド体５のホルダー５ｂに挿入
し、電極棒Ａ先端が研磨面３′の所定の位置へ当接する
ように、ガイド体５を移動調整機構２２によって移動調
整する。その後、スイッチをｏｎにして研磨盤３を高速
回転させると、電極棒Ａは、研磨面３′と接触して研磨
されると共に、研磨盤３から接触回転力を受けることに
よって、低速で回転しつつ順次研磨されて行く。電極棒
Ａ先端部の研磨が進行するに伴い、電極棒Ａは自重によ
りコレットチャック３１内を降下し、先端部は自動的に
所定の形状に研磨されて行く。この電極棒研磨機も、電
極棒Ａの傾斜角度や電極棒Ａ先端の研磨面３′への当接
位置を変えることによって、電極棒Ａ先端を円錐形状や
裁頭円錐形状に研磨加工したり、或いは電極棒Ａ先端を
２段研磨することができ、且つ研磨方向も任意に変更す
ることができる。Next, using the above-mentioned electrode rod polishing machine, electrode rod A
The case of polishing is described. When polishing the tip of the electrode rod A, first, the tilt angle of the angle adjusting plate 4 is adjusted so that the tip of the electrode rod A can be polished to a predetermined angle. Next, the electrode rod A is inserted into the electrode rod insertion hole 31a of the collet chuck 31 of the electrode rod holder 29, the electrode rod A is projected from the tip of the collet chuck 31 by a predetermined length, and then the chuck screw 32 is lightly tightened. The collet chuck 31 by slightly reducing its diameter,
Is held in a rotatable and slidable state. Then, the electrode rod holder 29 is inserted into the holder 5b of the guide body 5, and the guide body 5 is moved and adjusted by the movement adjusting mechanism 22 so that the tip of the electrode rod A contacts the predetermined position of the polishing surface 3 '. After that, when the switch is turned on and the polishing disc 3 is rotated at a high speed, the electrode rod A is contacted with the polishing surface 3 ′ to be polished, and is rotated at a low speed by receiving a contact rotational force from the polishing disc 3. While being polished one by one. As the tip portion of the electrode rod A progresses, the electrode rod A descends inside the collet chuck 31 due to its own weight, and the tip portion is automatically polished into a predetermined shape. Also in this electrode rod polishing machine, the tip of the electrode rod A is polished into a conical shape or a truncated cone shape by changing the inclination angle of the electrode rod A or the contact position of the tip of the electrode rod A with the polishing surface 3 '. Alternatively, the tip of the electrode rod A can be polished in two steps, and the polishing direction can be arbitrarily changed.
【００３３】尚、この電極棒研磨機は、電極棒Ａを保持
固定し得る電極棒ホルダー２９を備えている為、極短い
電極棒Ａでも研磨加工することができる。即ち、電極棒
Ａを保持固定した電極棒ホルダー２９をガイド体５のホ
ルダー５ｂに挿入して電極棒Ａ先端を研磨面３′へ当接
させ、研磨盤３を高速回転させて電極棒ホルダー２９を
指で回転させることによって、極短い電極棒Ａでも研磨
加工することができる。Since this electrode rod polishing machine is provided with the electrode rod holder 29 capable of holding and fixing the electrode rod A, it is possible to polish even the extremely short electrode rod A. That is, the electrode rod holder 29 holding and fixing the electrode rod A is inserted into the holder 5b of the guide body 5, the tip of the electrode rod A is brought into contact with the polishing surface 3 ', and the polishing disc 3 is rotated at a high speed to bring the electrode rod holder 29 into contact. By rotating with a finger, even the extremely short electrode rod A can be polished.
【００３４】又、電極棒ホルダー２９と設定ケージ７を
組み合わせて使用することによって、電極棒Ａの定量研
磨を行える。即ち、設定ケージ７によって電極棒ホルダ
ー２９に保持されている電極棒Ａの突出量や研磨量を設
定し、電極棒Ａを電極棒ホルダー２９で保持固定する。
その後、電極棒ホルダー２９をガイド体５のホルダー５
ｂに挿入して電極棒Ａ先端を研磨面３′へ当接させる。
尚、角度調整プレート４の傾斜角度やガイド体５の移動
調整等は予め行われている。そして、研磨盤３を高速回
転させて電極棒ホルダー２９を指で回転させつつ電極棒
Ａを研磨加工すると、研磨の進行に伴い電極棒ホルダー
２９がホルダー５ｂ内を降下し、先端部は自動的に所定
の形状に研磨されて行く。電極棒ホルダー２９は、一定
量下降すると、チャックガイド３０のフランジがホルダ
ー５ｂの上面に当接して下降が規制される。これによっ
て、研磨量が規制されることになる。尚、電極棒ホルダ
ー２９の下降が規制されたときには電極棒Ａの先端は完
全に研磨されていることは勿論である。Further, by using the electrode rod holder 29 and the setting cage 7 in combination, the electrode rod A can be quantitatively polished. That is, the protruding amount and the polishing amount of the electrode rod A held by the electrode rod holder 29 are set by the setting cage 7, and the electrode rod A is held and fixed by the electrode rod holder 29.
After that, the electrode rod holder 29 is attached to the holder 5 of the guide body 5.
Then, the tip of the electrode rod A is brought into contact with the polishing surface 3 '.
The tilt angle of the angle adjustment plate 4 and the movement adjustment of the guide body 5 are adjusted in advance. Then, when the electrode rod A is polished while the polishing platen 3 is rotated at a high speed and the electrode rod holder 29 is rotated by a finger, the electrode rod holder 29 descends in the holder 5b as the polishing progresses, and the tip portion is automatically moved. To be polished into a predetermined shape. When the electrode rod holder 29 descends by a certain amount, the flange of the chuck guide 30 comes into contact with the upper surface of the holder 5b and the descending is restricted. This limits the polishing amount. Of course, when the lowering of the electrode rod holder 29 is restricted, the tip of the electrode rod A is completely polished.
【００３５】上記各実施例に於いては、モータ２を傾斜
姿勢でケース本体１内に配設するようにしたが、モータ
２を水平姿勢でケース本体１内に配設するようにしても
良い。In each of the above embodiments, the motor 2 is arranged in the case body 1 in a tilted posture, but the motor 2 may be arranged in a horizontal posture in the case body 1. .
【００３６】上記各実施例に於いては、平板状の主研磨
面３ａとテーパ状の副研磨面３ｂとを備えた研磨盤３を
使用するようにしたが、平板状の研磨面３′のみを備え
た研磨盤３やテーパ状の研磨面３′のみを備えた研磨盤
３を使用するようにしても良い。In each of the above-mentioned embodiments, the polishing platen 3 having the flat plate-shaped main polishing surface 3a and the tapered sub-polishing surface 3b is used, but only the flat plate-shaped polishing surface 3 '. It is also possible to use the polishing platen 3 having the above or the polishing platen 3 having only the tapered polishing surface 3 '.
【００３７】上記第１実施例に於いては、電極棒ガイド
６に六つの電極棒挿通孔６ｃを形成するようにしたが、
電極棒挿通孔６ｃの数は上記実施例のものに限定される
ものではない。例えば、電極棒ガイド６の軸部６ａに夫
々内径の異なる電極棒挿通孔６ｃを二つ、三つ、四つ、
五つ若しくは七つ以上形成するようにしても良い。又、
各電極棒挿通孔６ｃを略同心円状に配置するようにした
が、各電極棒挿通孔６ｃを一列若しくは複数列に配置す
るようにしても良い。In the first embodiment, the electrode rod guide 6 is formed with the six electrode rod insertion holes 6c.
The number of the electrode rod insertion holes 6c is not limited to that in the above embodiment. For example, the shaft portion 6a of the electrode rod guide 6 has two, three, four electrode rod insertion holes 6c having different inner diameters,
Five or seven or more may be formed. or,
Although the electrode rod insertion holes 6c are arranged in a substantially concentric shape, the electrode rod insertion holes 6c may be arranged in one row or a plurality of rows.
【００３８】上記第１実施例に於いては、電極棒ガイド
６をホルダー５ｂに間欠回転可能に挿通支持させたが、
電極棒ガイド６をホルダー５ｂに固定するようにしても
良い。In the first embodiment, the electrode rod guide 6 is inserted into and supported by the holder 5b so as to be intermittently rotatable.
The electrode rod guide 6 may be fixed to the holder 5b.
【００３９】上記各実施例に於いては、ガイド体５を、
移動調整機構２２によって研磨盤３の略半径分の長さだ
け移動調整できるようにしたが、ガイド体５を研磨盤３
の直径分の長さだけ移動調整できるようにしても良い。In each of the above embodiments, the guide body 5 is
Although the movement adjusting mechanism 22 is configured to be able to move and adjust the length of the polishing platen 3 substantially corresponding to the radius, the guide body 5 can be moved.
The movement may be adjusted by the length corresponding to the diameter.
【００４０】上記第２実施例に於いては、コレットチャ
ック３１の軸芯に電極棒挿入孔３１ａを形成した電極棒
ホルダー２９を使用するようにしたが、図１８に示す如
く、コレットチャック３１の軸芯から偏心した位置に電
極棒挿入孔３１ａを穿設した電極棒ホルダー２９を使用
するようにしても良い。この場合には、図１８の如き電
極棒Ａの偏心先端を形成することができる。In the second embodiment, the electrode rod holder 29 in which the electrode rod insertion hole 31a is formed in the shaft center of the collet chuck 31 is used, but as shown in FIG. An electrode rod holder 29 having an electrode rod insertion hole 31a formed at a position eccentric from the shaft center may be used. In this case, the eccentric tip of the electrode rod A as shown in FIG. 18 can be formed.
【００４１】[0041]
【発明の効果】上述の通り、本発明の請求項１に記載の
電極棒研磨機は、電極棒を挿通状態で保持する電極棒ガ
イドを、角度調整プレート及びガイド体によって、研磨
盤の研磨面に対して角度調整自在且つ移動調整自在に支
持する構成としている。その結果、研磨盤の研磨面に対
する電極棒の傾斜角度を任意の角度に調整することがで
き、電極棒の先端部を任意の角度に研磨加工できると共
に、電極棒の先端部を２段研磨することができる。又、
電極棒先端と研磨盤の研磨面との接触位置を変えること
ができ、電極棒の研磨方向を任意に変更することができ
ると共に、研磨面の全域を有効に活用することができ、
研磨盤の寿命が大幅に向上する。更に、電極棒ガイド
が、研磨盤の研磨面に対向可能で且つ内径の夫々異なる
複数の電極棒挿通孔を備えている為、一つの電極棒ガイ
ドで数種類の電極棒に対応することができる。その結
果、従来のように交換用の電極棒ガイドを必要とするこ
とがなく、加工コストの低減や作業能率の向上を図れ
る。請求項２〜請求項５に記載の電極棒研磨機にあって
は、上記効果に加えて更に次のような効果を奏し得る。
即ち、請求項２に記載の電極棒研磨機にあっては、電極
棒ガイドに換えて縮拡径自在なコレットチャックを備え
た電極棒ホルダーを使用している為、極短い電極棒であ
っても、これを電極棒ホルダーで保持固定してその先端
を研磨盤に当接させ、電極棒ホルダーを指で回転させる
ことによって、電極棒先端を所定の形状に研磨加工する
ことができる。又、コレットチャックが縮拡径する為、
直径の異なる電極棒でも保持することができ、一つの電
極棒ホルダーで数種類の電極棒に対応することができ
る。請求項３に記載の電極棒研磨機にあっては、研磨盤
の研磨面が、平板状の主研磨面と、テーパ状の副研磨面
とを備えている為、電極棒先端を主研磨面と副研磨面の
両方に当接させて研磨加工した場合には、一回の研磨加
工で電極棒の先端部を２段研磨することができる。請求
項４に記載の電極棒研磨機にあっては、ガイド体の筒状
のホルダーとこれに挿通支持される電極棒ガイドとの間
に、電極棒ガイドを間欠回転させると共に電極棒ガイド
の各電極棒挿通孔が所定の位置を取り得るように電極棒
ガイドをホルダー側へ係止する係止機構を設けている
為、電極棒先端の研磨加工中に電極棒先端と研磨面との
接触位置が変わると云うこともなく、電極棒の研磨加工
を良好に行える。又、電極棒先端と研磨盤の研磨面との
接触位置も簡単且つ正確に変更することができ、至極便
利である。請求項５に記載の電極棒研磨機にあっては、
ケース本体１が、電極棒ホルダーに保持固定された電極
棒の突出量を調整でき、且つ電極棒の研磨量を設定でき
る設定ケージを備えている為、電極棒の定量研磨を行
え、電極棒の削り過ぎによる研磨ロスを防止することが
できる。As described above, in the electrode rod polishing machine according to the first aspect of the present invention, the electrode rod guide for holding the electrode rod in the inserted state is provided with the angle adjusting plate and the guide body for the polishing surface of the polishing plate. The angle is adjustable and the movement is adjustable. As a result, the inclination angle of the electrode rod with respect to the polishing surface of the polishing plate can be adjusted to any angle, the tip of the electrode rod can be polished to any angle, and the tip of the electrode rod is polished in two stages. be able to. or,
The contact position between the tip of the electrode rod and the polishing surface of the polishing plate can be changed, the polishing direction of the electrode rod can be arbitrarily changed, and the entire polishing surface can be effectively utilized.
The life of the polishing plate is greatly improved. Further, since the electrode rod guide is provided with a plurality of electrode rod insertion holes that can face the polishing surface of the polishing disk and have different inner diameters, one electrode rod guide can handle several types of electrode rods. As a result, unlike the prior art, there is no need for a replacement electrode rod guide, and the processing cost can be reduced and the work efficiency can be improved. In addition to the above effects, the electrode rod polishing machine according to the second to fifth aspects can exert the following effects.
That is, in the electrode rod polishing machine according to claim 2, since the electrode rod holder is provided with a collet chuck which can be reduced in diameter and expanded in place of the electrode rod guide, it is an extremely short electrode rod. Also, by holding and fixing this with an electrode rod holder, bringing its tip into contact with a polishing plate, and rotating the electrode rod holder with a finger, the tip of the electrode rod can be ground into a predetermined shape. Also, since the collet chuck expands and contracts,
It is possible to hold electrode rods having different diameters, and one electrode rod holder can be used for several kinds of electrode rods. In the electrode rod polishing machine according to claim 3, since the polishing surface of the polishing plate includes a flat main polishing surface and a tapered secondary polishing surface, the tip of the electrode rod is the main polishing surface. When the polishing process is carried out by contacting both the surface and the sub-polishing surface, the tip portion of the electrode rod can be polished in two stages by one polishing process. In the electrode rod grinder according to claim 4, the electrode rod guide is intermittently rotated between the cylindrical holder of the guide body and the electrode rod guide inserted and supported by the holder, and each of the electrode rod guides is rotated. Since there is a locking mechanism that locks the electrode rod guide to the holder side so that the electrode rod insertion hole can take a predetermined position, the contact position between the electrode rod tip and the polishing surface during polishing of the electrode rod tip The electrode rod can be satisfactorily polished without changing. Further, the contact position between the tip of the electrode rod and the polishing surface of the polishing plate can be changed easily and accurately, which is extremely convenient. In the electrode rod polishing machine according to claim 5,
Since the case body 1 is provided with a setting cage capable of adjusting the protruding amount of the electrode rod held and fixed in the electrode rod holder and setting the polishing amount of the electrode rod, the electrode rod can be quantitatively polished and the electrode rod It is possible to prevent polishing loss due to excessive cutting.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の第１実施例に係る電極棒研磨機の側面
図である。FIG. 1 is a side view of an electrode rod polisher according to a first embodiment of the present invention.
【図２】電極棒研磨機の平面図である。FIG. 2 is a plan view of an electrode rod polishing machine.
【図３】電極棒研磨機の正面図である。FIG. 3 is a front view of an electrode rod polishing machine.
【図４】電極棒研磨機の背面図である。FIG. 4 is a rear view of the electrode rod polisher.
【図５】電極棒研磨機の拡大縦断側面図である。FIG. 5 is an enlarged vertical side view of the electrode rod grinder.
【図６】電極棒研磨機の要部の拡大縦断正面図である。FIG. 6 is an enlarged vertical sectional front view of a main part of the electrode rod polishing machine.
【図７】電極棒ガイドの拡大正面図である。FIG. 7 is an enlarged front view of an electrode rod guide.
【図８】図５のＢ−Ｂ線拡大断面図である。8 is an enlarged sectional view taken along line BB of FIG.
【図９】電極棒研磨機の要部の拡大縦断側面図である。FIG. 9 is an enlarged vertical sectional side view of a main part of the electrode rod polishing machine.
【図１０】円錐状に研磨加工した電極棒先端部の拡大正
面図である。FIG. 10 is an enlarged front view of a tip portion of an electrode rod that is polished into a conical shape.
【図１１】２段に研磨加工した電極棒先端部の拡大正面
図である。FIG. 11 is an enlarged front view of a tip portion of an electrode rod that has been polished into two steps.
【図１２】本発明の第２実施例に係る電極棒研磨機の側
面図である。FIG. 12 is a side view of an electrode rod polisher according to a second embodiment of the present invention.
【図１３】電極棒研磨機の平面図である。FIG. 13 is a plan view of an electrode rod polishing machine.
【図１４】電極棒研磨機の正面図である。FIG. 14 is a front view of an electrode rod polishing machine.
【図１５】電極棒研磨機の拡大縦断側面図である。FIG. 15 is an enlarged vertical side view of the electrode rod polishing machine.
【図１６】電極棒ホルダーの断拡縦断面図である。FIG. 16 is an enlarged vertical cross-sectional view of an electrode rod holder.
【図１７】電極棒ホルダーの拡大側面図である。FIG. 17 is an enlarged side view of the electrode rod holder.
【図１８】電極棒ホルダーの他の例を示す拡大側面図で
ある。FIG. 18 is an enlarged side view showing another example of the electrode rod holder.
【図１９】偏心加工した電極棒先端部の拡大正面図であ
る。FIG. 19 is an enlarged front view of an eccentric processed electrode rod tip portion.
【図２０】先端部を所定の形状に研磨加工した電極棒先
端部の拡大正面図である。FIG. 20 is an enlarged front view of an electrode rod tip portion whose tip portion is ground into a predetermined shape.
【図２１】従来の電極棒研磨機の要部の縦断側面図であ
る。FIG. 21 is a vertical cross-sectional side view of a main part of a conventional electrode rod polishing machine.
【図２２】電極棒研磨機の要部の平面図である。FIG. 22 is a plan view of a main part of an electrode rod polishing machine.
Ａは電極棒、１はケース本体、２はモータ、２ａは駆動
軸、３は研磨盤、３′は研磨面、３ａは主研磨面、３ｂ
は副研磨面、４は角度調整プレート、５はガイド体、５
ｂはホルダー、６は電極棒ガイド、６ｃは電極棒挿通
孔、７設定ケージ、２５は係止機構、２９は電極棒ホル
ダー、３１はコレットチャック。A is an electrode rod, 1 is a case body, 2 is a motor, 2a is a drive shaft, 3 is a polishing plate, 3'is a polishing surface, 3a is a main polishing surface, 3b.
Is an auxiliary polishing surface, 4 is an angle adjusting plate, 5 is a guide body, 5
b is a holder, 6 is an electrode rod guide, 6c is an electrode rod insertion hole, 7 setting cage, 25 is a locking mechanism, 29 is an electrode rod holder, and 31 is a collet chuck.
Claims (5)
内に傾斜姿勢若しくは水平姿勢で配設されたモータ
（２）と、モータ（２）の駆動軸（２ａ）に取り付けら
れ、研磨面（３′）を有する研磨盤（３）と、研磨盤
（３）の上方に配置され、ケース本体（１）にモータ
（２）の軸線方向へ揺動自在で且つ研磨面（３′）に対
して角度調整自在に支持された角度調整プレート（４）
と、角度調整プレート（４）にモータ（２）の軸線に対
して直交し且つ水平方向へ移動調整自在に支持されたガ
イド体（５）と、ガイド体（５）に下端部をケース本体
（１）内へ突出せしめた状態で挿通支持され、研磨盤
（３）の研磨面（３′）に対向可能で且つ内径の夫々異
なる複数の電極棒挿通孔（６ｃ）を備えた電極棒ガイド
（６）とから構成したことを特徴とする電極棒研磨機。1. A case body (1) and a case body (1)
A motor (2) disposed inside in a tilted posture or a horizontal posture, a polishing machine (3) attached to the drive shaft (2a) of the motor (2) and having a polishing surface (3 ′), and a polishing machine ( An angle adjusting plate (4) which is arranged above the case (3) and which is swingably supported by the case body (1) in the axial direction of the motor (2) and whose angle can be adjusted with respect to the polishing surface (3 ').
A guide body (5) which is supported by the angle adjusting plate (4) at right angles to the axis of the motor (2) and is movable in the horizontal direction, and a lower end portion of the guide body (5) having a case body ( (1) An electrode rod guide (6c) having a plurality of electrode rod insertion holes (6c), which are inserted and supported in a state of protruding into the inside, can face the polishing surface (3 ') of the polishing plate (3), and have different inner diameters. 6) An electrode rod polishing machine characterized by comprising:
内に傾斜姿勢若しくは水平姿勢で配設されたモータ
（２）と、モータ（２）の駆動軸（２ａ）に取り付けら
れ、研磨面（３′）を有する研磨盤（３）と、研磨盤
（３）の上方に配置され、ケース本体（１）にモータ
（２）の軸線方向へ揺動自在で且つ研磨面（３′）に対
して角度調整自在に支持された角度調整プレート（４）
と、角度調整プレート（４）にモータ（２）の軸線に対
して直交し且つ水平方向へ移動調整自在に支持されたガ
イド体（５）と、ガイド体（５）に下端部をケース本体
（１）内へ突出せしめた状態で回転可能且つ着脱自在に
挿通支持され、電極棒（Ａ）をその先端が研磨面
（３′）へ当接する状態で保持し得る縮拡径可能なコレ
ットチャック（３１）を備えた電極棒ホルダー（２９）
とから構成したことを特徴とする電極棒研磨機。2. A case body (1) and a case body (1)
A motor (2) disposed inside in a tilted posture or a horizontal posture, a polishing machine (3) attached to the drive shaft (2a) of the motor (2) and having a polishing surface (3 ′), and a polishing machine ( An angle adjusting plate (4) which is arranged above the case (3) and which is swingably supported by the case body (1) in the axial direction of the motor (2) and whose angle can be adjusted with respect to the polishing surface (3 ').
A guide body (5) which is supported by the angle adjusting plate (4) at right angles to the axis of the motor (2) and is movable in the horizontal direction, and a lower end portion of the guide body (5) having a case body ( 1) A collet chuck capable of contracting and expanding, which is rotatably and detachably inserted and supported in a state of protruding inward, and capable of holding an electrode rod (A) in a state where its tip is in contact with a polishing surface (3 ′). Electrode holder (29) with 31)
An electrode rod polishing machine characterized by comprising
視に於いて平面状の主研磨面（３ａ）と、主研磨面（３
ａ）の内方に位置するテーパ状の副研磨面（３ｂ）とか
ら構成したことを特徴とする請求項１又は請求項２に記
載の電極棒研磨機。3. A main polishing surface (3a) and a main polishing surface (3a) which are flat in a sectional view and which are flat surfaces (3a) of the polishing plate (3).
The electrode rod polishing machine according to claim 1 or 2, wherein the electrode rod polishing machine comprises a tapered sub-polishing surface (3b) located inside a).
回転自在に挿通支持する筒状のホルダー（５ｂ）を備え
て居り、該ホルダー（５ｂ）と電極棒ガイド（６）との
間に、電極棒ガイド（６）を間欠回転させると共に各電
極棒挿通孔（６ｃ）が所定の位置を取り得るように電極
棒ガイド（６）をホルダー（５ｂ）側へ係止する係止機
構（２５）を設けたことを特徴とする請求項１に記載の
電極棒研磨機。4. The guide body (5) is provided with a cylindrical holder (5b) which rotatably inserts and supports the electrode rod guide (6), and the holder (5b) and the electrode rod guide (6) are provided. A locking mechanism that intermittently rotates the electrode rod guide (6) and locks the electrode rod guide (6) to the holder (5b) side so that each electrode rod insertion hole (6c) can take a predetermined position. (25) is provided, The electrode rod grinder of Claim 1 characterized by the above-mentioned.
（２９）に保持固定された電極棒（Ａ）の突出量を調整
でき、且つ電極棒（Ａ）の研磨量を設定できる設定ゲー
ジ（７）を備えていることを特徴とする請求項２に記載
の電極棒研磨機。5. A setting gauge () for adjusting the amount of projection of the electrode rod (A) held and fixed to the electrode rod holder (29) and setting the polishing amount of the electrode rod (A) in the case body (1). The electrode rod polisher according to claim 2, further comprising 7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7458494A JP2736402B2 (en) | 1994-04-13 | 1994-04-13 | Electrode bar polishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7458494A JP2736402B2 (en) | 1994-04-13 | 1994-04-13 | Electrode bar polishing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07276211A true JPH07276211A (en) | 1995-10-24 |
| JP2736402B2 JP2736402B2 (en) | 1998-04-02 |
Family
ID=13551366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7458494A Expired - Lifetime JP2736402B2 (en) | 1994-04-13 | 1994-04-13 | Electrode bar polishing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2736402B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996030162A1 (en) * | 1995-03-27 | 1996-10-03 | Euro-Tool Aps | Apparatus for grinding welding electrodes, in particular wolfram electrodes |
| DE10010520A1 (en) * | 2000-03-07 | 2001-09-20 | Rolf Tamm | Apparatus to process welding electrodes comprises a grinding wheel in a housing having a through-hole for guiding a welding electrode in a defined position to the wheel |
| KR20010091408A (en) * | 2000-03-15 | 2001-10-23 | 김병호 | Grinder with electrode rod |
| EP1262279A2 (en) * | 2001-05-23 | 2002-12-04 | Manohr Schweisstechnik GmbH | Apparatus for grinding of round bars, in particular tungsten welding electrodes |
| US6672942B1 (en) * | 1999-07-07 | 2004-01-06 | Fujikin Incorporated | Grinding machine for welding electrodes |
| WO2009099183A1 (en) * | 2008-02-06 | 2009-08-13 | Kabushiki Kaisha Toshiba | Probe needle and manufacturing method of the same |
| DE10210069B4 (en) * | 2002-03-08 | 2009-11-12 | Rolf Tamm | Device for processing welding electrodes with a grinding wheel |
| JP2010139498A (en) * | 2008-11-11 | 2010-06-24 | Ribu & Rabu:Kk | Indicator electrode used for electrochemical measurement |
| WO2011069727A1 (en) | 2009-12-10 | 2011-06-16 | Rolf Tamm | Electrode grinding device |
| DE102013104875B3 (en) * | 2013-05-13 | 2014-10-30 | Rolf Tamm | Electrode grinding device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202017002300U1 (en) * | 2017-04-29 | 2018-01-15 | Robel Bahnbaumaschinen Gmbh | Grinding machine for grinding a rail of a track |
-
1994
- 1994-04-13 JP JP7458494A patent/JP2736402B2/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996030162A1 (en) * | 1995-03-27 | 1996-10-03 | Euro-Tool Aps | Apparatus for grinding welding electrodes, in particular wolfram electrodes |
| US6672942B1 (en) * | 1999-07-07 | 2004-01-06 | Fujikin Incorporated | Grinding machine for welding electrodes |
| DE10010520A1 (en) * | 2000-03-07 | 2001-09-20 | Rolf Tamm | Apparatus to process welding electrodes comprises a grinding wheel in a housing having a through-hole for guiding a welding electrode in a defined position to the wheel |
| DE10066071A1 (en) * | 2000-03-07 | 2002-08-22 | Rolf Tamm | Device for processing welding electrodes with a grinding wheel |
| DE10066073A1 (en) * | 2000-03-07 | 2002-08-22 | Rolf Tamm | Device for processing welding electrodes with a grinding wheel |
| DE10066071C2 (en) * | 2000-03-07 | 2002-11-28 | Rolf Tamm | Device for processing welding electrodes with a grinding wheel |
| DE10066073C2 (en) * | 2000-03-07 | 2002-11-28 | Rolf Tamm | Device for processing welding electrodes with a grinding wheel |
| DE10010520C2 (en) * | 2000-03-07 | 2002-11-28 | Rolf Tamm | Device for processing welding electrodes with a grinding wheel |
| KR20010091408A (en) * | 2000-03-15 | 2001-10-23 | 김병호 | Grinder with electrode rod |
| EP1262279A2 (en) * | 2001-05-23 | 2002-12-04 | Manohr Schweisstechnik GmbH | Apparatus for grinding of round bars, in particular tungsten welding electrodes |
| EP1262279A3 (en) * | 2001-05-23 | 2003-07-23 | Manohr Schweisstechnik GmbH | Apparatus for grinding of round bars, in particular tungsten welding electrodes |
| DE10210069B4 (en) * | 2002-03-08 | 2009-11-12 | Rolf Tamm | Device for processing welding electrodes with a grinding wheel |
| WO2009099183A1 (en) * | 2008-02-06 | 2009-08-13 | Kabushiki Kaisha Toshiba | Probe needle and manufacturing method of the same |
| US8888558B2 (en) | 2008-02-06 | 2014-11-18 | Kabushiki Kaisha Toshiba | Probe pin and method of manufacturing the same |
| JP2010139498A (en) * | 2008-11-11 | 2010-06-24 | Ribu & Rabu:Kk | Indicator electrode used for electrochemical measurement |
| WO2011069727A1 (en) | 2009-12-10 | 2011-06-16 | Rolf Tamm | Electrode grinding device |
| DE102013104875B3 (en) * | 2013-05-13 | 2014-10-30 | Rolf Tamm | Electrode grinding device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2736402B2 (en) | 1998-04-02 |
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