JPH0229471B2 - - Google Patents
Info
- Publication number
- JPH0229471B2 JPH0229471B2 JP61031259A JP3125986A JPH0229471B2 JP H0229471 B2 JPH0229471 B2 JP H0229471B2 JP 61031259 A JP61031259 A JP 61031259A JP 3125986 A JP3125986 A JP 3125986A JP H0229471 B2 JPH0229471 B2 JP H0229471B2
- Authority
- JP
- Japan
- Prior art keywords
- brush
- conductive
- conductive brush
- contact
- reference body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 18
- 238000005498 polishing Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000012937 correction Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000011000 absolute method Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、被処理物の表面に形成されたバリの
除去やかど部の面取りなどを回転ブラシにより行
うバリ取り研摩機におけるブラシの摩耗量を補正
して研摩するバリ取り研摩機におけるブラシ摩耗
量の補正方法に関するものである。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a deburring and polishing machine that uses rotating brushes to remove burrs formed on the surface of a workpiece, chamfer corners, etc. The present invention relates to a method for correcting the amount of brush wear in a deburring and polishing machine that performs polishing by correcting the amount of brush wear.
（従来の技術）
アルミニウム系合金よりなるダイキヤスト部品
あるいは鋳鉄製部品などを切削または研削加工し
た際に生ずるバリの除去およびこれら加工後の被
処理物のかど部の面取りなどを行う研摩機では、
カツプ形の回転ブラシによるものが一般に使用さ
れていが、このような回転ブラシは、ほとんどが
手工具として使用されているだけであつて、例外
的に機械装置としたものでも、スクリユー軸に市
販の回転ブラシを取付けた構造のものがその大部
分を占める。（例えば実開昭60−58号公報）
しかしながら、このような回転ブラシを用いた
研摩機においては、研摩作業が進むにつれてブラ
シ穂先が摩耗したことにより被処理物に対するブ
ラシの切込み量が減少し、研摩力が低下するとと
もに上記のような切込み量の減少に伴つて研摩作
用が不均一となることにより被処理物の処理面に
むらを生じて仕上品質が不安定となり、このため
ブラシ穂先の摩耗量補正操作、即ち、被処理物に
対するブラシ位置の変更によつて所定の切込み量
とする必要があるが、前記のようにこの種の研摩
機は機械化、自動化が進んでいないため、ほとん
ど作業者の手加減で調整が行なわれている。(Prior Art) A grinding machine that removes burrs that occur when cutting or grinding die-cast parts made of aluminum alloy or cast iron parts, etc., and chamfers the corners of the workpiece after such processing, etc.
Cup-shaped rotating brushes are generally used, but most of these rotating brushes are only used as hand tools, and even in exceptional cases where they are used as mechanical devices, commercially available rotating brushes are attached to the screw shaft. Most of them have a structure with rotating brushes attached. (For example, Japanese Utility Model Application No. 60-58) However, in a polishing machine using such a rotating brush, as the polishing work progresses, the tip of the brush wears down, and the amount of cut into the workpiece by the brush decreases. As the polishing power decreases and the depth of cut decreases as described above, the polishing action becomes uneven, resulting in unevenness on the processed surface of the workpiece, making the finished quality unstable, and as a result, the brush tip wears out. It is necessary to perform a volume correction operation, that is, change the brush position relative to the workpiece, to achieve a predetermined depth of cut, but as mentioned above, this type of polishing machine has not been mechanized or automated, so most operators do not have to do it. Adjustments are being made at the discretion of
（発明が解決しようとする問題点）
ところが、このような手加減によるブラシの摩
耗量の補正では、調整に時間を要して能率が悪い
うえに補正の都度均一なブラシの切込み量となる
ように補正することは困難で、しかも、実行する
にしても熟練を要するなどの問題点がある。(Problem to be Solved by the Invention) However, such manual correction of the amount of wear of the brush takes time and is inefficient, and it is difficult to obtain a uniform amount of cut of the brush each time the correction is made. There are problems in that it is difficult to correct and requires skill to carry out.
（問題点を解決するための手段）
本発明は前記のような問題点を解決したバリ取
り研摩機におけるブラシ摩耗量の補正方法に関す
るもので、回転駆動装置と接続されたねじ軸の正
逆回転により昇降可能とされたブラシ保持体にブ
ラシ軸を回転自在に挿通保持させて該ブラシ軸の
下端には多数本の非導電性ブラシ素材と適数本の
導電性ブラシ素材とを混在させた導電性ブラシを
取付け、該導電性ブラシには導体を介し導電性基
準体を接続して導電性ブラシと導電性基準体のス
イツチングを可能とし、該導電性ブラシを前記導
電性基準体表面へ接触させて導電性ブラシの接触
位置をスイツチングにより検出し、次いで、前記
回転駆動装置によりブラシ保持体を昇降させて前
記接触位置を基準とする導電性ブラシの所定量の
昇降を行わせることを特徴とするものである。(Means for Solving the Problems) The present invention relates to a method for correcting the amount of brush wear in a deburring and polishing machine that solves the above-mentioned problems. A brush shaft is rotatably inserted and held in a brush holder that can be raised and lowered by a brush holder, and the lower end of the brush shaft is equipped with a conductive brush made of a mixture of a large number of non-conductive brush materials and an appropriate number of conductive brush materials. a conductive brush is attached, a conductive reference body is connected to the conductive brush via a conductor to enable switching between the conductive brush and the conductive reference body, and the conductive brush is brought into contact with the surface of the conductive reference body. The contact position of the conductive brush is detected by switching, and then the brush holder is raised and lowered by the rotary drive device, and the conductive brush is raised and lowered by a predetermined amount with respect to the contact position. It is something.
（作用）
本発明では研摩作業の進行により導電性ブラシ
の穂先がある程度摩耗してきたとき、導電性ブラ
シを下降させて導電性基準体の基準面に接触さ
せ、導電性ブラシと導電性基準体の接触をスイツ
チングにより検知してこの接触位置を記憶または
記録し、この位置を基準としてブラシ保持体を被
処理物に対して切込み量が適正量となる位置まで
昇降させてブラシ摩耗量の補正を行うこととな
る。(Function) In the present invention, when the tip of the conductive brush becomes worn to some extent due to the progress of the polishing work, the conductive brush is lowered and brought into contact with the reference surface of the conductive reference body, and the conductive brush and the conductive reference body are Contact is detected by switching, this contact position is memorized or recorded, and based on this position, the brush holder is moved up and down to a position where the amount of cutting into the workpiece is appropriate, and the amount of brush wear is corrected. It happens.
（実施例）
次に、本発明方法を図示の装置を用いた実施例
について詳細に説明すれば、機枠の側壁部１に設
けた一対の軸受２，２にボールねじ等のねじを螺
刻したねじ軸３を軸支させ、該ねじ軸３の上端に
プーリ４を固定するとともにこのプーリ４と、ブ
レーキ付の可変速電動機等よりなる回転駆動装置
５の駆動軸に取付けたプーリ６との間にベルト７
を巻掛けてある。また、ねじ軸３の両軸受２，２
間には該ねじ軸３に対応する所定のボールを備え
たナツト８を螺合させ、該ナツト８に一端を固定
したブラケツト９の他端に筒体状のブラシ保持体
１０を取付けて回転駆動装置５の駆動によりプー
リ６、ベルト７、プーリ４を経てねじ軸３を回転
し、これよりナツト８を介してブラシ保持体１０
を昇降させる構成としてある。また、昇降に際し
てブラシ保持体１０を正しく昇降させるように、
昇降案内用のガイド１１をブラシ保持体１０に近
接して設置し、ブラシ保持体１０の係合部を摺動
自在に係合させておく。さらに、ブラシ保持体１
０の中空部に管体などよりなるブラシ軸１２を一
対の軸受１３，１３により回転自在に挿通保持さ
せ、このブラシ軸１２の上部側にプーリ１４を取
付け、プーリ１４と前記ブラシ保持体１０の一側
に取付けた回転駆動装置５のモータ１５の駆動軸
に取付けたプーリ１６との間にはベルト１７を巻
き掛け、モータ１５の駆動によりブラシ軸１２は
プーリ１６、ベルト１７、プーリ１４を経て回転
可能としてある。さらにまた、ブラシ軸１２の下
部側には電気絶縁材料で形成した絶縁ブツシユ１
８を嵌着固定し、その内面に導電性材料で形成し
た内側テープ形状の導電ブツシユ１９を嵌着して
おく。２０は導電性ブラシで、その主体となるブ
ラシ素材は、ナイロンのような耐摩耗性合成樹脂
製の線状素材などの非導電性ブラシ素材２０ｂに
溶融アルミナ、炭化ケイ素などの研摩材を含有さ
せたものと、カーボンフアイバなどの導電性ブラ
シ素材２０ａとよりなり、この非導電性ブラシ素
材２０ｂに導電性ブラシ素材２０ａの適数本を混
在させて盤状材に植設して円柱形状の導電性ブラ
シ２０を製作して用いる。しかして、この導電性
ブラシ２０は椀形のブラシホルダ２１に固定保持
され、ブラシホルダ２１の上面にはテーパシヤン
ク２２の下部が挿入固定してあり、テーパシヤン
ク２２のテーパ部を導電プツシユ１９へ嵌着し、
導電性ブラシ２０をブラシ軸１２の下端に一体的
に取付ける。また、ブラシ軸１２の上端にスリツ
プリング２３を設け、そのスリツプリング２３に
接続した導線２４はブラシ軸１２の中空部を通つ
て下方にのび、下端の導電ブツシユ１９へ接続し
ている。導電性ブラシ２０の導電性ブラシ素材２
０ａはテーパシヤンク２２に沿つて配設した導線
２５により、導電ブツシユ１９と接続できるよう
にしてあり、ブラシ軸１２に導電性ブラシ２０を
取付けたときは、スリツプリング２３と導電性ブ
ラシ２０とは電気的に接続された状態となり、ま
た、スリツプリング２３には、その外側面からこ
れに摺動する給電部２３ａにより給電できるよう
にしておく。２６は導電性基準体であつて、被処
理物の高さに対応する高さを有する金属ブロツク
またはこれと同等のものよりなり、工作台上また
は移動テーブル上に電気的に絶縁して設置され、
この導電性基準体２６と給電部２３ａとの間は、
導線２７により導電性ブラシ２０と導電性基準体
２６とが接触した場合に導通するように接続し、
この回線の途中にスイツチ２８が設けられてい
る。また、ねじ軸３の上端には、ブラシ摩耗の補
正量を読み取るロータリーエンコーダ、ポジシヨ
ンコーダなどの昇降量測定装置２９がねじ軸３と
連動するように設けてある。(Example) Next, the method of the present invention will be explained in detail with reference to an example using the illustrated apparatus. A pulley 4 is fixed to the upper end of the screw shaft 3, and a pulley 6 is attached to the drive shaft of a rotary drive device 5 such as a variable speed electric motor with a brake. Belt 7 between
is wrapped around it. Also, both bearings 2, 2 of the screw shaft 3
A nut 8 having a predetermined ball corresponding to the screw shaft 3 is screwed in between, and a cylindrical brush holder 10 is attached to the other end of a bracket 9 whose one end is fixed to the nut 8, and the brush holder 10 is rotatably driven. Driven by the device 5, the screw shaft 3 is rotated via the pulley 6, belt 7, and pulley 4, and from this, the brush holder 10 is rotated via the nut 8.
It has a configuration that allows it to be raised and lowered. In addition, in order to correctly raise and lower the brush holder 10 when raising and lowering,
A guide 11 for guiding up and down is installed close to the brush holder 10, and the engaging portion of the brush holder 10 is slidably engaged. Furthermore, the brush holder 1
A brush shaft 12 made of a tube or the like is rotatably inserted into the hollow part of the brush shaft 12 by a pair of bearings 13, 13, and a pulley 14 is attached to the upper side of the brush shaft 12. A belt 17 is wound between the rotary drive device 5 attached to one side and a pulley 16 attached to the drive shaft of a motor 15, and when the motor 15 is driven, the brush shaft 12 passes through the pulley 16, the belt 17, and the pulley 14. It is rotatable. Furthermore, an insulating bush 1 made of an electrically insulating material is provided on the lower side of the brush shaft 12.
8 is fitted and fixed, and an inner tape-shaped conductive bush 19 made of a conductive material is fitted onto its inner surface. 20 is a conductive brush, the main brush material of which is a non-conductive brush material 20b such as a linear material made of wear-resistant synthetic resin such as nylon, containing an abrasive material such as molten alumina or silicon carbide. A suitable number of conductive brush materials 20a are mixed with this non-conductive brush material 20b and planted in a plate material to form a cylindrical conductive brush material. A sex brush 20 is manufactured and used. The conductive brush 20 is fixedly held in a bowl-shaped brush holder 21, and the lower part of the taper shank 22 is inserted and fixed into the upper surface of the brush holder 21, and the tapered part of the taper shank 22 is fitted into the conductive pusher 19. death,
A conductive brush 20 is integrally attached to the lower end of the brush shaft 12. Further, a slip ring 23 is provided at the upper end of the brush shaft 12, and a conductive wire 24 connected to the slip ring 23 extends downward through the hollow portion of the brush shaft 12 and is connected to a conductive bush 19 at the lower end. Conductive brush material 2 of conductive brush 20
0a can be connected to the conductive bush 19 by a conductive wire 25 arranged along the taper shank 22, and when the conductive brush 20 is attached to the brush shaft 12, the slip ring 23 and the conductive brush 20 are connected to each other. In addition, the slip ring 23 is configured so that power can be supplied from the outer surface of the slip ring 23 by a power supply portion 23a that slides thereon. Reference numeral 26 denotes a conductive reference body, which is made of a metal block or something equivalent having a height corresponding to the height of the object to be processed, and is installed electrically insulated on a workbench or a moving table. ,
Between this conductive reference body 26 and the power supply part 23a,
The conductive brush 20 and the conductive reference body 26 are connected by a conductive wire 27 so as to be electrically connected when they come into contact with each other,
A switch 28 is provided in the middle of this line. Further, at the upper end of the screw shaft 3, a lifting amount measuring device 29 such as a rotary encoder or a position coder for reading the correction amount of brush wear is provided so as to be interlocked with the screw shaft 3.
このようなバリ取り研摩機において、導電性ブ
ラシ２０が摩耗した場合は、まず、あらかじめ所
定の台上又は移動テーブル上に電気絶縁体を介し
て載置してある導電性基準体２６の表面に導電性
ブラシ２０の下端側を接触させる。これよりブラ
シ軸１２のスリツプリング２３、導線２４、導電
ブシユ１９、導線２５、導電性ブラシ素材２０
ａ、導電性基準体２６、導線２７及び、該導線２
７の先端が接続されるとともにスリツプリング２
３に摺動可能に当接保持さている給電部２３ａに
より電気回路が形成され、この状態でスイツチン
グ部２８の作動により接触位置が検出される。そ
こで回転駆動装置５を駆動してねじ軸３を回転さ
せ、この回転に連動して昇降量測定装置２９の表
示を前記接触位置を基準として読取りながら設定
値分の送りが行われ、所定設定値に達したところ
で停止する。 In such a deburring and polishing machine, when the conductive brush 20 is worn out, first apply it to the surface of the conductive reference body 26 that has been placed on a predetermined table or moving table via an electrical insulator. The lower end side of the conductive brush 20 is brought into contact. From this, the slip ring 23 of the brush shaft 12, the conductive wire 24, the conductive bush 19, the conductive wire 25, and the conductive brush material 20
a, conductive reference body 26, conductive wire 27, and the conductive wire 2
The tip of 7 is connected and the slip ring 2
An electric circuit is formed by the power supply part 23a which is slidably held in contact with the contact point 3, and in this state, the contact position is detected by the operation of the switching part 28. Therefore, the rotary drive device 5 is driven to rotate the screw shaft 3, and in conjunction with this rotation, the display on the lifting amount measuring device 29 is read with reference to the contact position, and the feed is performed by a set value, and the screw shaft 3 is moved to a predetermined set value. It stops when it reaches .
これにより、被処理物に対する導電性ブラシ２
０の高さ位置が適正とされ、ブラシ先端側の切込
み量が所定の数値とされて正確な研摩作業が達成
できる。なお、上記の補正のための方向は上昇、
下降の両方向に可能であり、また、カウンタを用
いて被処理物の処理個数をカウントして警報する
ようにすれば、処理個数が設定値に達する毎に前
記の補正作業をその警報により規則的に行うこと
ができ、さらに、昇降量測定装置２９は、ロータ
リーエンコーダ、ポジシヨンコーダなどのほか、
簡易な装置として光電スイツチ、近接スイツチを
用いても良い。なお、導電性ブラシ素材２０ａ
は、主体となる非導電性ブラシ素材２０ｂと同等
またはそれも良好な耐摩耗性を有するものを使用
することが好ましく、また、補正値測定方法はイ
ンクリメンタル方式、アブソリユート方式のいづ
れでも良い。 As a result, the conductive brush 2
A height position of 0 is considered appropriate, and the cutting amount on the brush tip side is set to a predetermined value, so that accurate polishing work can be achieved. Note that the direction for the above correction is upward,
This is possible in both downward and downward directions.Also, if a counter is used to count the number of processed objects and an alarm is issued, the above-mentioned correction work can be performed regularly by the alarm each time the number of processed objects reaches a set value. Further, the lifting amount measuring device 29 may include a rotary encoder, a position coder, etc.
A photoelectric switch or a proximity switch may be used as a simple device. In addition, the conductive brush material 20a
It is preferable to use a material having wear resistance equal to or better than that of the main non-conductive brush material 20b, and the correction value measurement method may be either an incremental method or an absolute method.
（発明の効果）
本発明は前記説明から明らかなように、研摩ブ
ラシとして導電性ブラシを使用して導電性基準多
と接触させ、その接触位置を電気的に検知し、こ
の位置を基準として導電性ブラシを適正な位置に
昇降させて摩耗量の補正を行うようにしたので、
導電性ブラシを簡易且つ迅速に摩耗量を補正して
適正な位置に保持でき、このために有効な研摩作
業が可能な状態を常に維持でき、また、従来のよ
うに手加減で補正を行うものでないから、補正し
た結果は導電性ブラシと被処理物との関係位置を
常に一定の位置に保ちうるという効果もあり、本
発明は産業の発達に寄与するところ極めて大なる
ものである。(Effects of the Invention) As is clear from the above description, the present invention uses a conductive brush as an abrasive brush, brings it into contact with a conductive reference, electrically detects the contact position, and conducts the conductive brush using this position as a reference. The amount of wear is corrected by raising and lowering the brush to the appropriate position.
The amount of wear of the conductive brush can be easily and quickly corrected and held in the proper position, and therefore a state in which effective polishing work can be performed can always be maintained, and correction is not performed manually as in the past. Therefore, the corrected result has the effect that the relative position between the conductive brush and the object to be processed can always be maintained at a constant position, and the present invention greatly contributes to the development of industry.
図面は本発明方法において用いる装置の一部切
欠正面図である。
３：ねじ軸、５：回転駆動装置、１０：ブラシ
保持体、２０：導電性プラシ、２０ａ：導電性ブ
ラシ素材、２０ｂ：非導電性ブラシ素材、２６：
導電性基準体、２８：スイツチ。
The drawing is a partially cutaway front view of the apparatus used in the method of the present invention. 3: Screw shaft, 5: Rotation drive device, 10: Brush holder, 20: Conductive brush, 20a: Conductive brush material, 20b: Non-conductive brush material, 26:
Conductive reference body, 28: switch.
Claims (1)
により昇降可能とされたブラシ保持体にブラシ軸
を回転自在に挿通保持させて該ブラシ軸の下端に
は多数本の非導電性ブラシ素材と適数本の導電性
ブラシ素材とを混在させた導電性ブラシを取付
け、該導電性ブラシには導体を介し導電性基準体
を接続して導電性ブラシと導電性基準体のスイツ
チングを可能とし、導電性ブラシを前記導電性基
準体表面へ接触させて導電性ブラシの接触位置を
スイツチングにより検出し、次いで、前記回転駆
動装置によりブラシ保持体を昇降させて前記接触
位置を基準とする導電性ブラシの所定量の昇降を
行わせることを特徴とするバリ取り研摩機におけ
るブラシ摩耗量の補正方法。1. A brush holder is rotatably inserted and held in a brush holder that can be raised and lowered by forward and reverse rotation of a screw shaft connected to a rotary drive device, and a large number of non-conductive brush materials are attached to the lower end of the brush shaft. A conductive brush made of a mixture of an appropriate number of conductive brush materials is attached, and a conductive reference body is connected to the conductive brush via a conductor to enable switching between the conductive brush and the conductive reference body, The conductive brush is brought into contact with the surface of the conductive reference body, the contact position of the conductive brush is detected by switching, and then the brush holder is raised and lowered by the rotary drive device, and the conductive brush is brought into contact with the contact position as a reference. A method for correcting the amount of brush wear in a deburring and polishing machine, characterized by raising and lowering a brush by a predetermined amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3125986A JPS62188666A (en) | 1986-02-15 | 1986-02-15 | Method for correcting amount of wear of brush in burring polishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3125986A JPS62188666A (en) | 1986-02-15 | 1986-02-15 | Method for correcting amount of wear of brush in burring polishing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62188666A JPS62188666A (en) | 1987-08-18 |
| JPH0229471B2 true JPH0229471B2 (en) | 1990-06-29 |
Family
ID=12326350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3125986A Granted JPS62188666A (en) | 1986-02-15 | 1986-02-15 | Method for correcting amount of wear of brush in burring polishing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62188666A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100842875B1 (en) * | 2002-12-16 | 2008-07-02 | 주식회사 만도 | Base shell curring apparatus for shock absorber |
| JP5433407B2 (en) * | 2009-12-28 | 2014-03-05 | 川崎重工業株式会社 | Brush state determination device and determination method for conductive rotating brush |
| JP2012011510A (en) * | 2010-07-01 | 2012-01-19 | Honda Motor Co Ltd | Brush grinding method of metal ring and device therefor |
| CN112338753A (en) * | 2020-11-06 | 2021-02-09 | 张炜琛 | Efficient rust removal device for sewage pump and rust removal method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5775774A (en) * | 1980-10-24 | 1982-05-12 | Tipton Mfg Corp | Burr removing apparatus |
-
1986
- 1986-02-15 JP JP3125986A patent/JPS62188666A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5775774A (en) * | 1980-10-24 | 1982-05-12 | Tipton Mfg Corp | Burr removing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62188666A (en) | 1987-08-18 |
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