JPS5827061B2 - Polishing device for the inner surface of the weld groove - Google Patents
Polishing device for the inner surface of the weld grooveInfo
- Publication number
- JPS5827061B2 JPS5827061B2 JP17322379A JP17322379A JPS5827061B2 JP S5827061 B2 JPS5827061 B2 JP S5827061B2 JP 17322379 A JP17322379 A JP 17322379A JP 17322379 A JP17322379 A JP 17322379A JP S5827061 B2 JPS5827061 B2 JP S5827061B2
- Authority
- JP
- Japan
- Prior art keywords
- polishing
- welding groove
- grinding wheel
- feed
- feed table
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Description
【発明の詳細な説明】
この発明は、溶接の前処理としてガウジング等により削
成された溶接開先の内面を、砥石により倣い研摩する装
置において、２個の砥石を溶接開先の内面の両側に同時
にかつ常時一定の研摩押付力で倣わせて該内面を研摩で
きるとともに、両砥石が溶接開先の奥行方向に前進でき
なくなった時に、砥石を溶接開先の底方向に倣わすこと
ができ、しかも、円筒管の外周に形成された溶接開先を
研摩するような場合に、２個の研摩ユニットを円筒管の
管径に応じて鉛直面内で回転させ、両ユニットが円筒管
の中心に向くようその仰角を調整できるようにした溶接
開先内面の研摩装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an apparatus for copying and polishing the inner surface of a welding groove, which has been cut by gouging or the like as a pretreatment for welding, using a grindstone. The inner surface can be polished simultaneously and with a constant polishing pressing force, and when both grindstones cannot move forward in the depth direction of the weld groove, the grindstone can be made to follow the bottom direction of the weld groove. Moreover, when polishing a weld groove formed on the outer periphery of a cylindrical tube, the two polishing units are rotated in a vertical plane according to the diameter of the cylindrical tube, and both units are aligned at the center of the cylindrical tube. The present invention relates to a polishing device for the inner surface of a welding groove, the elevation angle of which can be adjusted so as to face the welding groove.
つぎにこの発明を、その１実施例を示した図面とともに
詳細に説明する。Next, the present invention will be explained in detail with reference to drawings showing one embodiment thereof.
第１図において、１は油圧パワーユニット等が内蔵され
た装置本体、２は装置本体１の上部に設けられた操作盤
を有する制御部、４，５は上下に重ねられ制御部２の前
側に鉛直面内において回動自在に装着された２個の研摩
ユニット、６，７は両研摩ユニット４，５の前方に導出
されたグラインダ、８，９は両グラインダ６．７にそれ
ぞれ取付けられたオフセット型の砥石、１０は装置本体
１に接続された高周波発生器、１１，１２は高周波発生
器１０に接続された２個の手動研摩用のグラインダ、１
３は装置本体１の電源コードのプラグ、１４．１５は移
動用車輪、１６．１７は移動用の把手、１８は両研摩ユ
ニット４，５を鉛直面内で回動される回動用操作ハンド
ル、１９は被研摩材である円筒管、２０は円筒管１９の
外周の開先線に泊ってガウジング等により削成された溶
接開先である。In Fig. 1, 1 is a device main body with a built-in hydraulic power unit, etc., 2 is a control section with an operation panel provided on the top of the device main body 1, and 4 and 5 are stacked vertically and are arranged vertically in front of the control section 2. Two polishing units are rotatably mounted in the plane, 6 and 7 are grinders led out in front of both polishing units 4 and 5, and 8 and 9 are offset types respectively attached to both grinders 6 and 7. 10 is a high-frequency generator connected to the main body 1 of the apparatus, 11 and 12 are two manual grinders connected to the high-frequency generator 10, 1
3 is a plug for the power cord of the apparatus main body 1; 14.15 is a wheel for moving; 16.17 is a handle for moving; 18 is an operation handle for rotating both polishing units 4, 5 in a vertical plane; 19 is a cylindrical tube which is a material to be polished, and 20 is a welding groove which is cut along the groove line on the outer periphery of the cylindrical tube 19 by gouging or the like.
したがって、作業者が把手１６，１７により装置を移動
させるとともに、両砥石８，９をそれぞれ溶接開先２０
の内面２０′の両側に当てがい、操作ハンドル１８を回
転させて両ユニット４，５が円筒管１９の中心を向くよ
うに両研摩ユニット４゜５の仰角θを調整し、操作盤８
を操作して装置を駆動すれば、両研摩ユニット４，５に
より砥石８゜９の作動が制御され、両砥石８，９がそれ
ぞれ内面２０′に倣いながら溶接開先２０の奥行方向に
送られ、かつ砥石８，９が奥行方向に前進できなくなる
と、グラインダ６．７が旋回されて溶接開先２０の底方
向に倣わされ、自動的に研摩作業が行なわれる。Therefore, while the operator moves the device using the handles 16 and 17, the two grindstones 8 and 9 are moved to the welding groove 20, respectively.
, and rotate the operation handle 18 to adjust the elevation angle θ of both polishing units 4 and 5 so that both units 4 and 5 face the center of the cylindrical tube 19.
When the device is operated by operating the grinding unit 4, 5, the operation of the grinding wheels 8.9 is controlled by the grinding units 4, 5, and the grinding wheels 8, 9 are sent in the depth direction of the welding groove 20 while following the inner surface 20'. , and when the grindstones 8, 9 cannot move forward in the depth direction, the grinder 6.7 is rotated to follow the bottom direction of the welding groove 20, and the grinding work is automatically performed.
この時、円筒管１９が矢印方向に回転されることにより
、内面２０′が全周にわたって自動的に研摩される。At this time, by rotating the cylindrical tube 19 in the direction of the arrow, the inner surface 20' is automatically polished over the entire circumference.
つぎに、研摩ユニット４，５を第２図および第３図によ
り詳述する。Next, the polishing units 4 and 5 will be explained in detail with reference to FIGS. 2 and 3.
両研摩ユニット４，５は同一構成であるから、一方の研
摩ユニット４を例に説明する。Since both polishing units 4 and 5 have the same configuration, one polishing unit 4 will be explained as an example.
すなわち、研摩ユニット４は、第２図に示す倣い制御機
構部Ｐと第３図に示す送り制御機構部Ｆとから構成され
ており、まず、倣い制御機構部Ｐについて説明する。That is, the polishing unit 4 is composed of a copy control mechanism section P shown in FIG. 2 and a feed control mechanism section F shown in FIG. 3. First, the copy control mechanism section P will be explained.
支持台２１に２個の摺動ガイド２２，２２を平行に設け
、この両摺動ガイド２２，２２にグラインダ６を摺動自
在に嵌挿し、油圧シリンダ２３のロッド２３′をグライ
ンダ６に遊貫し、一方の摺動ガイド２２に摺動自在に嵌
挿された押付板２４の一端部を、ロッド２３′の端部に
固着し、さらに、押付ばね２５を、ロッド２３′に巻装
しかつグラインダ６と押付板２４間に介装し、また、押
付板２４の他端部にメカニカル入力サーボ弁２６を装着
するとともに、サーボ弁２６のスプール２６′をグライ
ンダ６の側面に当接させ、また、油圧シリンダ２３、サ
ーボ弁２６および給油源の油圧ユニット２７をそれぞれ
油通管２８により連通して油圧回路を形成した構成にな
っている。Two sliding guides 22, 22 are provided in parallel on the support base 21, and the grinder 6 is slidably inserted into both sliding guides 22, 22, and the rod 23' of the hydraulic cylinder 23 is loosely inserted into the grinder 6. One end of the pressing plate 24, which is slidably fitted into one of the sliding guides 22, is fixed to the end of the rod 23', and a pressing spring 25 is wound around the rod 23'. A mechanical input servo valve 26 is interposed between the grinder 6 and the pressing plate 24, and a mechanical input servo valve 26 is attached to the other end of the pressing plate 24, and the spool 26' of the servo valve 26 is brought into contact with the side surface of the grinder 6. , a hydraulic cylinder 23, a servo valve 26, and a hydraulic unit 27 as an oil supply source are connected through an oil pipe 28 to form a hydraulic circuit.
つぎに、前記倣い制御機構部Ｐの動作を説明すると、押
付板２４および押付ばね２５を介してグラインダ６およ
び砥石８が人矢印方向に付勢され、回転される砥石８が
溶接開先２０の内面２０′に押付けられ、内面２０′の
研摩が行なわれる。Next, to explain the operation of the copying control mechanism section P, the grinder 6 and the grinding wheel 8 are urged in the direction of the arrow through the pressing plate 24 and the pressing spring 25, and the rotating grinding wheel 8 is pressed against the welding groove 20. It is pressed against the inner surface 20', and the inner surface 20' is polished.
そして、送り制御機構部Ｆにより支持台２１が溶接開先
２０の奥行方向に移動されると、砥石８が押付ばね２５
の付勢力に抗して内面２０′に倣いながら溶接開先２０
の奥行方向に送られる。Then, when the support stand 21 is moved in the depth direction of the welding groove 20 by the feed control mechanism section F, the grindstone 8 is pressed against the pressing spring 25.
Welding groove 20 follows the inner surface 20' against the urging force of
Sent in the depth direction.
ところで、砥石８が内面２０′に倣いつつ溶接開先２０
の奥行方向に送られるにしたがって、グラインダ６が両
摺動ガイド２２，２２に摺動しなから戻入矢印方向に移
動されるため、押付ばね２５が圧縮され、押付ばね２５
による砥石８の内面２０′への研摩押付力が増大するが
、この時、グラインダ６によりサーボ弁２６のスプール
２６’が押圧されて戻入矢印方向に移動される。By the way, while the grindstone 8 follows the inner surface 20', the welding groove 20
As the grinder 6 is moved in the depth direction of the sliding guides 22, 22, it is moved in the direction of the return arrow, so that the pressing spring 25 is compressed.
The grinding pressing force against the inner surface 20' of the grindstone 8 increases, but at this time, the spool 26' of the servo valve 26 is pressed by the grinder 6 and moved in the direction of the return arrow.
すなわち、グラインダ６とロッド２３′との相対変位に
よる砥石８の研摩押付力の増大分が、サーボ弁２６のス
プール２６′の移動距離に変換して検出されたことにな
り、このスプール２６′の移動距離に応じて油圧ユニッ
ト２７から油圧シリンダ２３への油量が変化され、油圧
シリンダ２３のロッド２３′が戻入矢印方向に移動され
、かつ押付板２４がロッド２３′と一体に戻入矢印方向
に移動されて押付ばね２５が伸長し、内面２０′に対す
る砥石８の研摩押付力が軽減し、設定押付力が維持され
る。In other words, the increase in the polishing pressing force of the grindstone 8 due to the relative displacement between the grinder 6 and the rod 23' is converted into the moving distance of the spool 26' of the servo valve 26 and detected. The amount of oil from the hydraulic unit 27 to the hydraulic cylinder 23 is changed according to the moving distance, the rod 23' of the hydraulic cylinder 23 is moved in the direction of the return arrow, and the pressing plate 24 is moved together with the rod 23' in the direction of the return arrow. As the pressing spring 25 is moved, the pressing spring 25 is expanded, the polishing pressing force of the grindstone 8 against the inner surface 20' is reduced, and the set pressing force is maintained.
また、砥石８が溶接開先２０の底部２０“まで研摩した
のち、戻る場合、グラインダ６が人矢印方向に移動して
研摩押付力が減小するが、前記とは逆に、サーボ弁２６
のスプール２６′が人矢印方向に移動され、かつサーボ
弁２６により油圧シリンダ２３のロッド２３′がＡ矢印
方向に移動するよう制御され、押付板２４が入矢印方向
に移動されて押付ばね２５が圧縮され、研摩押付力が増
大し、設定押付力が維持される。Further, when the grindstone 8 grinds the welding groove 20 to the bottom 20'' and then returns, the grinder 6 moves in the direction of the arrow and the grinding pressing force decreases.
The spool 26' is moved in the direction of the arrow A, and the rod 23' of the hydraulic cylinder 23 is controlled by the servo valve 26 to move in the direction of the arrow A, the pressing plate 24 is moved in the direction of the arrow A, and the pressing spring 25 is moved in the direction of the arrow A. It is compressed, the abrasive pressing force is increased, and the set pressing force is maintained.
また、倣い制御機構部Ｐを溶接開先２０の奥行方向に送
り、かつ奥行方向に対し前進不可能になった時に倣い制
御機構部Ｐを旋回させて砥石８を溶接開先２０の底方向
に倣わせる送り制御機構部Ｐは、第３図に示すように、
基台２９上に２個のガイドレール３０，３０を平行に設
けるとともに、両ガイドレール３０，３０に、直進送り
テーブル３１を橋架して摺動自在に載置し、この直進テ
ーブル３１上に、ウオームホイールからなり倣い制御機
構部Ｐが載置固定される旋回送りテーブル３２を枢軸３
３により回転自在に設ける。Further, the copying control mechanism part P is sent in the depth direction of the welding groove 20, and when it becomes impossible to advance in the depth direction, the copying control mechanism part P is rotated to move the grindstone 8 toward the bottom of the welding groove 20. The feed control mechanism P for copying is as shown in FIG.
Two guide rails 30, 30 are provided in parallel on the base 29, and a linear feed table 31 is bridged and slidably placed on both guide rails 30, 30, and on this linear table 31, A rotating feed table 32 consisting of a worm wheel and on which a copying control mechanism part P is placed and fixed is mounted on a pivot 3.
3 so that it can rotate freely.
そして、直進送りテーブル３１を駆動する直進送りアク
チュエータＦ１として、奥行方向の過負荷検出器および
移動量検出器を備え油圧モータ（図示せず）の回転を減
速する減速機（図示せず）により入力軸が回転される直
進送り用クラッチ３４と、直進送り用クラッチの出力軸
３５に固着された第１の歯車３６と、直進送りテーブル
３１の下部に固着されたナツト３７と軸受３８とに螺合
された直進送りねじ３９と、直進送りねじ３９の端部に
固着された第２の歯車４０と、第１の歯車３６の回転を
第２の歯車４０に伝達する第３の歯車４１とにより構成
し、一方、旋回送りアクチュエータＦ２を、旋回送り過
負荷検出器および旋回送り量検出器を備え油圧モータ（
図示せず）の回転を減速する減速機（図示せず）により
入力軸が回転される旋回送りクラッチ４２と、クラッチ
出力軸４３に固着された第４の歯車４４と、第４の歯車
４４と噛合する第５の歯車４５と、第５の歯車４５と一
体に回転するスプライン軸受４６と、スプライン軸受４
６に螺合されたスプライン軸４７と、スプライン軸４７
から延設され端部が軸受４８に軸支された伸縮自在の旋
回送り軸４９と、旋回送り軸４９に形成され旋回送りテ
ーブル３２に噛合するウオーム５０とにより構成する。The linear feed actuator F1 that drives the linear feed table 31 is inputted by a reducer (not shown) that is equipped with a depth direction overload detector and a movement amount detector and decelerates the rotation of a hydraulic motor (not shown). A linear feed clutch 34 whose shaft is rotated, a first gear 36 fixed to the output shaft 35 of the linear feed clutch, a nut 37 fixed to the lower part of the linear feed table 31, and a bearing 38 are screwed together. A second gear 40 is fixed to the end of the linear feed screw 39, and a third gear 41 transmits the rotation of the first gear 36 to the second gear 40. On the other hand, the swing feed actuator F2 is a hydraulic motor (
A swing feed clutch 42 whose input shaft is rotated by a speed reducer (not shown) that decelerates the rotation of a clutch (not shown); a fourth gear 44 fixed to a clutch output shaft 43; A fifth gear 45 meshing with each other, a spline bearing 46 rotating integrally with the fifth gear 45, and a spline bearing 4
6 and the spline shaft 47 screwed together with the spline shaft 47.
It consists of a retractable rotating feed shaft 49 extending from the center and having an end pivotally supported by a bearing 48, and a worm 50 formed on the rotating feed shaft 49 and meshing with the rotating feed table 32.
つぎに、前記送り制御機構部Ｆについて説明すると、直
進送り用油圧モータの回転が減速機を介して直進送り用
クラッチ３４の入力軸に伝達され、かつクラッチ３４の
磁気粉体により出力軸３５が回転し、この回転が各歯車
３６，４１゜４０を介して直進送りねじ３９に伝達され
、直進送りテーブル３１および倣い制御機構部ＰがＢ矢
印で示す溶接開先２０の奥行方向に移動される。Next, to explain the feed control mechanism section F, the rotation of the linear feed hydraulic motor is transmitted to the input shaft of the linear feed clutch 34 via the reducer, and the output shaft 35 is controlled by the magnetic powder of the clutch 34. This rotation is transmitted to the linear feed screw 39 via each gear 36, 41° 40, and the linear feed table 31 and copying control mechanism section P are moved in the depth direction of the welding groove 20 as indicated by arrow B. .
そして、砥石８が溶接開先２０の底部２０“まで研摩す
ると、倣い制御機構部Ｐの前進が不可能となり、直進送
りねじ３９の回転速度が低下してクラッチ３４の入力軸
と出力軸３５とがスリップし、過負荷検出器により奥行
方向の過負荷が検出されて過負荷信号が出力し、この信
号により旋回送り用油圧モータが回転し、この回転が旋
回送り用クラッチ４２を介して第４歯車４４および第５
歯車４５に伝達され、かつスプライン軸４７および旋回
送り軸４９が回転し、旋回送り軸４９のウオーム５０と
噛み合う旋回送りテーブル３２が回転される。When the grindstone 8 grinds down to the bottom 20'' of the welding groove 20, the profiling control mechanism section P cannot move forward, and the rotational speed of the linear feed screw 39 decreases, causing the input shaft and output shaft 35 of the clutch 34 to slips, an overload in the depth direction is detected by the overload detector, and an overload signal is output.This signal causes the rotation feed hydraulic motor to rotate, and this rotation is transmitted via the rotation feed clutch 42 to the fourth hydraulic motor. Gear 44 and the fifth
The rotation is transmitted to the gear 45, the spline shaft 47 and the swing feed shaft 49 are rotated, and the swing feed table 32, which meshes with the worm 50 of the swing feed shaft 49, is rotated.
したがって、倣い制御機構部Ｐが旋回され、砥石８が溶
接開先２０の底方向に倣いながら送られる。Therefore, the tracing control mechanism section P is rotated, and the grindstone 8 is sent while tracing the bottom direction of the welding groove 20.
つぎに、倣い制御機構部Ｐの旋回が不可能になると、旋
回送り軸４９の回転速度が低下して旋回送り用クラッチ
４２がスリップ状態となり、旋回送り過負荷検出器から
過負荷信号が出力されて旋回送り用油圧モータの回転方
向が逆転し、旋回送りテーブル３２が逆方向に回転し、
旋回送り量検出器の制御により、砥石８が旋回前の位置
まで戻されると、直進送り用油圧モータが逆回転して直
進送りテーブルが溶接開先２０の奥行方向に対し後進さ
れ、移動量検出器の制御により、砥石８が元の位置に戻
され、倣い研摩動作の１工程が終了する。Next, when the copying control mechanism section P becomes unable to rotate, the rotational speed of the rotation feed shaft 49 decreases, the rotation feed clutch 42 enters a slip state, and an overload signal is output from the rotation feed overload detector. The rotating direction of the swing feed hydraulic motor is reversed, and the swing feed table 32 is rotated in the opposite direction.
When the grinding wheel 8 is returned to its pre-swing position under the control of the swing feed amount detector, the linear feed hydraulic motor rotates in the opposite direction, the linear feed table is moved backward in the depth direction of the welding groove 20, and the amount of movement is detected. The grindstone 8 is returned to its original position under the control of the machine, and one step of the copy polishing operation is completed.
以上のように、この発明の溶接開先内面の研摩装置によ
ると、研摩用の砥石を備えたグラインダと砥石を溶接開
先の内面に押付ける押付ばねを有し、砥石の内面に対す
る研摩押付力を一定にするよう閉ループ制御する倣い制
御機構部と、直進送りテーブルを溶接開先の奥行方向に
往復動させかつ奥行方向の過負荷検出器および移動量検
出器を備えた直進送りアクチュエータと、倣い制御機構
部が固定されかつ直進送りテーブルに回転自在に装着さ
れた旋回送りテーブルと、旋回送りテーブルを回転させ
かつ旋回方向の過負荷検出器を備えた旋回送りアクチュ
エータとにより研摩ユニットを構成し、２個の前記研摩
ユニットを、該両研摩ユニットの各砥石を内面の両側に
同時に押付けられるよう上下に配設し、両研摩ユニット
を鉛直面内で回転させて両研摩ユニットの仰角を調整す
る機構を備えたことにより、溶接開先の研摩作業を自動
的に行なうことができ、しかも、２個の砥石により同時
に研摩でき、研摩作業時間を大幅に短縮することができ
る。As described above, the apparatus for polishing the inner surface of a welding groove of the present invention includes a grinder equipped with a grinding wheel and a pressing spring that presses the grinding wheel against the inner surface of the welding groove. a linear feed actuator that reciprocates a linear feed table in the depth direction of the welding groove and is equipped with an overload detector and a movement amount detector in the depth direction; A polishing unit is constituted by a swing feed table having a fixed control mechanism and rotatably attached to a linear feed table, and a swing feed actuator that rotates the swing feed table and is equipped with an overload detector in the swing direction, A mechanism in which the two polishing units are arranged one above the other so that the respective grindstones of the two polishing units can be simultaneously pressed against both sides of the inner surface, and the two polishing units are rotated in a vertical plane to adjust the elevation angles of the two polishing units. By providing this, it is possible to automatically perform the polishing work of the welding groove, and moreover, the polishing work can be performed simultaneously using two grindstones, and the polishing work time can be significantly shortened.
また、研摩ユニットの仰角を調整できるので、特にこの
発明は、管径の異なる円筒管の外周に設けられた溶接開
先の研摩を容易に行なえる利点を有する。Further, since the elevation angle of the polishing unit can be adjusted, the present invention has the advantage that it is possible to easily polish weld grooves provided on the outer periphery of cylindrical tubes having different diameters.
図面はこの発明の溶接開先内面の研摩装置の１実施例を
示し、第１図は斜視図、第２図および第３図はそれぞれ
研摩ユニットの倣い制御機構部および送り制御機構部の
平面図である。
４．５・・・・・・研摩ユニット、６・・・・・・グラ
インダ、８・・・・・・砥石、２０・・・・・・溶接開
先、２０′・・・・・・内面、２５・・・・・・押付ば
ね、３１・・・・・・直進送りテーブル、３２・・・・
・・旋回送りテーブル、Ｐ・・・・・・倣い制御機構部
、Ｆｌ・・・・・・直進送りアクチュエータ、Ｆ２・・
・・・・旋回送りアクチュエータ。The drawings show one embodiment of the polishing device for the inner surface of a welding groove according to the present invention, and FIG. 1 is a perspective view, and FIGS. 2 and 3 are plan views of a tracing control mechanism section and a feed control mechanism section, respectively, of the polishing unit. It is. 4.5... Polishing unit, 6... Grinder, 8... Grindstone, 20... Welding groove, 20'... Inner surface , 25... Pressing spring, 31... Straight feed table, 32...
...Turning feed table, P...Copying control mechanism section, Fl...Linear feed actuator, F2...
...Turning feed actuator.
Claims (1)
開先の内面に押付ける押付ばねを有し、前記砥石の前記
内面に対する研摩押付力を一定にするよう閉ループ制御
する倣い制御機構部と、直進送りテーブルを前記溶接開
先の奥行方向に往復動させかつ奥行方向の過負荷検出器
および移動量検出器を備えた直進送りアクチュエータと
、前記倣い制御機構部が固定されかつ前記直進送りテー
ブルに回転自在に装着された旋回送りテーブルと、前記
旋回送りテーブルを回転させかつ旋回方向の過負荷検出
器を備えた旋回送りアクチュエータとにより研摩ユニッ
トを構成し、２個の前記研摩ユニットを、該両研摩ユニ
ットの各砥石を前記内面の両側に同時に押付けられるよ
う上下に配設し、前記両研摩ユニットを鉛直面内で回転
させて前記両研摩ユニットの仰角を調整する機構を備え
たことを特徴とする溶接開先内面の研摩装置。1. A grinder equipped with a grinding wheel and a pressing spring that presses the grinding wheel against the inner surface of the welding groove, and a tracing control mechanism section that performs closed loop control to keep the grinding pressing force of the grinding wheel against the inner surface constant; a linear feed actuator that reciprocates a linear feed table in the depth direction of the welding groove and is equipped with a depth direction overload detector and a movement amount detector; A polishing unit is constituted by a rotatably mounted rotary feed table and a rotary feed actuator that rotates the rotary feed table and is equipped with an overload detector in the rotation direction, and the two polishing units are connected to each other. Each grinding wheel of the polishing unit is arranged vertically so as to be pressed against both sides of the inner surface at the same time, and a mechanism is provided for adjusting the elevation angle of both the polishing units by rotating both the polishing units in a vertical plane. Polishing device for the inner surface of the weld groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17322379A JPS5827061B2 (en) | 1979-12-29 | 1979-12-29 | Polishing device for the inner surface of the weld groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17322379A JPS5827061B2 (en) | 1979-12-29 | 1979-12-29 | Polishing device for the inner surface of the weld groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56102462A JPS56102462A (en) | 1981-08-15 |
| JPS5827061B2 true JPS5827061B2 (en) | 1983-06-07 |
Family
ID=15956410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17322379A Expired JPS5827061B2 (en) | 1979-12-29 | 1979-12-29 | Polishing device for the inner surface of the weld groove |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5827061B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9700994B2 (en) | 2012-12-27 | 2017-07-11 | 3M Innovative Properties Company | Circular support plate, nonwoven fabric polishing roll, roll assembly, and polishing method |
-
1979
- 1979-12-29 JP JP17322379A patent/JPS5827061B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9700994B2 (en) | 2012-12-27 | 2017-07-11 | 3M Innovative Properties Company | Circular support plate, nonwoven fabric polishing roll, roll assembly, and polishing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56102462A (en) | 1981-08-15 |
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