JPS5816989B2 - Rotary polishing wheel and method for polishing external bead of welded pipe using the same - Google Patents
Rotary polishing wheel and method for polishing external bead of welded pipe using the sameInfo
- Publication number
- JPS5816989B2 JPS5816989B2 JP54046591A JP4659179A JPS5816989B2 JP S5816989 B2 JPS5816989 B2 JP S5816989B2 JP 54046591 A JP54046591 A JP 54046591A JP 4659179 A JP4659179 A JP 4659179A JP S5816989 B2 JPS5816989 B2 JP S5816989B2
- Authority
- JP
- Japan
- Prior art keywords
- polishing
- abrasive
- paper
- wheel
- bead
- 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)
- Polishing Bodies And Polishing Tools (AREA)
Description
【発明の詳細な説明】
本発明は、鋼材等の金属材料表面を研摩する回転研摩輪
及びその−使用方法である研摩効果及び研摩後の形状改
善を目的とした溶接パイプの外面ビード研摩方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotary polishing wheel for polishing the surface of a metal material such as steel, and a method for polishing the outer surface of a welded pipe for the purpose of improving the polishing effect and shape after polishing. .
従来、金属材料表面を研摩するには、一般にベルトグラ
インダー、砥石が用いられ、特殊な研摩輪が用いられる
場合もある。Conventionally, belt grinders and whetstones are generally used to polish the surface of metal materials, and special polishing wheels may also be used.
しかし、ベルトグラインダーによる研摩は、時間の経過
によって研摩能力の低下が太き（、一般に寿命が短いし
、砥石による研摩は、寿命の問題は少ないが、曲面に沿
った研摩には不適当なことが多い。However, polishing with a belt grinder has a sharp decline in polishing ability over time (and generally has a short lifespan, and polishing with a whetstone has fewer problems with longevity, but is unsuitable for polishing along curved surfaces. There are many.
特殊な研摩輪としては、サンドペーパーを回転軸に対し
平行に放射状に固着したもの（特公昭３９−１３２９４
）、針を回転輪に放射状固着したニードルカッター等が
あるが、いずれも製造コスト、寿命等に問題点がある。A special abrasive wheel is one in which sandpaper is fixed radially parallel to the rotating shaft (Special Publication No. 39-13294).
), needle cutters in which needles are radially fixed to a rotating ring, etc., but both have problems in manufacturing cost, lifespan, etc.
また、従来、溶接パイプの外面ビードを研摩するために
は一般に研摩方向をビード方向に対して直角にして研摩
を行っている。Conventionally, in order to polish the outer bead of a welded pipe, the polishing direction is generally perpendicular to the bead direction.
このため、砥石を用いた場合には、パイプ外周面に沿っ
ての研摩ができないので研摩後の形状が著しく不良とな
る。For this reason, when a grindstone is used, it is not possible to polish along the outer peripheral surface of the pipe, resulting in a significantly poor shape after polishing.
ベルトグラインダーを用いた場合には、ベルトがパイプ
外周面にはなじむが、ビート部に比して軟かいビード近
傍の地金をも同時に削ってしまうため、研摩後の形状不
良をもたらす。When a belt grinder is used, the belt conforms to the outer circumferential surface of the pipe, but the metal near the bead, which is softer than the bead, is also ground at the same time, resulting in a poor shape after polishing.
また、砥石を用いてビードに対して斜め方向に研摩すれ
ば面接触となり、研摩後の形状不良は解消されるが、砥
石面をパイプ面になじませりまでに時間がかかり、切削
初めは不良がでやすい。In addition, if you use a grindstone to grind diagonally to the bead, surface contact will occur and the defective shape after grinding will be eliminated, but it takes time to adjust the surface of the grindstone to the pipe surface, and defects may occur at the beginning of cutting. It's easy.
本発明は、このような種々の問題点を解決し、研摩輪の
形状が被研摩面に短時間でなじみ、かつ研摩後の形状が
よいこと、研摩能力が一定で優れていること、寿命が長
いこと、研摩コストを低下させることを目的とした回転
研摩輪およびこれを使用しビード面のみを研摩する溶接
パイプの外面ビード研摩方法を提供するもので、その内
容は紙面に対し平行に砥粒が摩耗した研摩布紙を円形ま
たは多角形に切り出し該円形または多角形の研摩布紙を
積み重ねて円柱体となし、該円柱体の上下両端面の中心
を結ぶ直線を回転軸とする該円柱体の側面を研摩面とし
たことを特徴とする回転研摩輪および紙面に対し平行に
砥粒が摩耗した研摩布紙を円形または多角形に切り出し
該円形または多角形の研摩布紙な積み重ねて円柱体とな
し、該円柱体の上下両端面の中心を結ぶ直線を回転軸と
する該円柱体の側面を研摩面とした回転研摩輪を使用し
、該回転研摩輪の回転軸とビード長さ方向のなす角度が
３０°〜６０°となるようにして研摩することを特徴と
する溶接パイプの外面ビード研摩方法にある。The present invention solves these various problems by ensuring that the shape of the polishing wheel adapts to the surface to be polished in a short time, that the shape after polishing is good, that the polishing ability is constant and excellent, and that the service life is long. For a long time, we have provided a rotary polishing wheel with the aim of reducing polishing costs and a method for polishing the external bead of a welded pipe that uses this wheel to polish only the bead surface. A cylindrical body is formed by cutting worn abrasive coated paper into a circular or polygonal shape and stacking the circular or polygonal abrasive coated paper to form a cylindrical body, the cylindrical body having its axis of rotation as a straight line connecting the centers of both upper and lower end surfaces of the cylindrical body. A rotary abrasive wheel characterized by having a side surface as an abrasive surface, and coated abrasive paper with abrasive grains worn parallel to the paper surface are cut into circular or polygonal shapes, and the circular or polygonal coated abrasive papers are stacked to form a cylindrical body. A rotating abrasive wheel is used, the rotational axis of which is a straight line connecting the centers of both the upper and lower end surfaces of the cylindrical body, and the side surface of the cylindrical body is the abrasive surface. A method for polishing an outer surface bead of a welded pipe, characterized in that polishing is performed so that the angle formed is 30° to 60°.
以下、本発明を図面に基づいて詳細に説明する４第１図
に示すように、円形に切り出され紙面に対し平行に砥粒
が摩耗した研摩布紙２を積み重ねて円柱体３を形成し、
円柱体３の上下両端面の中心部４を穿孔し、ボルト５等
を通して締めつげ研摩輪となす。Hereinafter, the present invention will be explained in detail based on the drawings.4 As shown in FIG.
A hole is made in the center part 4 of both upper and lower end surfaces of the cylindrical body 3, and a bolt 5 or the like is passed through the hole to form a tightening abrasive ring.
このように形成した研摩輪のボルト等を軸として回転さ
せ、側面６で被研摩物体を研摩する。The polishing wheel thus formed is rotated around a bolt or the like as an axis, and the object to be polished is polished with the side surface 6.
この場合、研摩布紙は新品を用いるよりも、砥粒が摩耗
して研摩能力の劣化したものを用いる方が研摩輪として
優れた研摩能力を示す。In this case, using a coated abrasive paper whose abrasive grains have been worn and whose abrasive ability has deteriorated exhibits better polishing ability as a polishing wheel than using a new coated abrasive paper.
これは第６図に示すように砥粒１が研摩布紙２面に平行
に摩耗しているため、これを積層させて形成した研摩輪
の側面である研摩面においては、砥粒がより鋭利となり
、従って研摩輪としての研摩能力は優れたものになると
考えられるからである。This is because the abrasive grains 1 are worn parallel to the two surfaces of the cloth abrasive paper as shown in Figure 6, so the abrasive grains are sharper on the abrasive surface, which is the side surface of the abrasive wheel formed by laminating these abrasive grains. Therefore, it is thought that the polishing ability of the polishing wheel is excellent.
また、紙面に対し平行に砥粒が摩耗した研摩布紙を切る
場合、円形とせずに任意の多角形とし、＄２図のごとく
これを積み重ねて円柱体を作ってもよい。Furthermore, when cutting abrasive coated paper whose abrasive grains have worn parallel to the paper surface, it is possible to cut it into any polygonal shape instead of a circle, and stack these to form a cylindrical body as shown in Figure $2.
紙面に対し平行に砥粒が摩耗した研摩布紙を円形に切り
出して円柱体を作った場合と多角形に切り出して円柱体
を作った場合とを比較すると、多角形の場合の方が研摩
能力かや〜慶れている。Comparing the case where a cylindrical body is made by cutting abrasive coated paper with abrasive grains worn parallel to the paper surface into a circular shape and the case where a cylindrical body is made by cutting a polygonal body, the polishing ability of the polygonal one is better. I'm so happy.
これは多角形に切り出した方が研摩面内における空隙が
多（あり、そのための目づまり防止、冷却能力の向上効
果が現われたものと考えられる。This is thought to be due to the fact that polygonal cutting has more voids within the polished surface, which prevents clogging and improves cooling ability.
多角形に切り出す方が用いる研摩布紙の切り捨て量が少
（なりこの点からも有利である。Cutting out polygons is advantageous in that the amount of cut-off cloth paper used is smaller.
なお、紙面に対し平行に砥粒が摩耗した研摩布紙を積み
重ねて円柱体とする場合、接着剤等を用いて研摩布紙を
互に接着しない方がよいし、円柱体の厚さは、被研摩物
体の形状、研摩量等により任意に選択すればよい。In addition, when stacking coated abrasive papers with worn abrasive grains parallel to the paper surface to form a cylinder, it is better not to use adhesive or the like to adhere the coated abrasive papers to each other, and the thickness of the cylinder is It may be arbitrarily selected depending on the shape of the object to be polished, the amount of polishing, etc.
実施列 １
５ＵＳ４３ｏＴＢ熱間押出鋼管の外面全面研摩に本発明
の回転研摩輪な従来の砥石を用いた場合について比較し
た。Example 1 A comparison was made between the use of a conventional grinding wheel, such as the rotary polishing wheel of the present invention, for polishing the entire outer surface of a 5US43oTB hot extruded steel pipe.
第３図、第４図に示すように、鋼管７を転送装置８に乗
せて回転させつつ長さ方向に送る。As shown in FIGS. 3 and 4, the steel pipe 7 is placed on a transfer device 8 and sent in the length direction while being rotated.
このとき鋼管７に接触させて研摩輪９を設け、鋼管７と
反対方向に回転させた。At this time, a polishing wheel 9 was provided in contact with the steel pipe 7 and rotated in the opposite direction to the steel pipe 7.
研摩輪９は円形に切り出し紙面に対し平行に砥粒が摩耗
した圃摩布紙を重ねて作成したものを用いた。The polishing wheel 9 was made by cutting out a circular shape and stacking abrasive cloth papers with abrasive grains worn parallel to the paper surface.
なお、従来例としては砥石を用い、上記研摩輪と同様に
セットし回転させた。In addition, as a conventional example, a grindstone was used, and it was set and rotated in the same manner as the above-mentioned polishing wheel.
結果は第１表に示すとおりであって、本発明の研摩輪を
用いることにより、従来例、比較例の砥石を用いた場合
に比して研摩能力が著しく向上した。The results are shown in Table 1, and by using the polishing wheel of the present invention, the polishing ability was significantly improved compared to when using the conventional and comparative examples.
また、研摩後の表面性状も優れていた。次に、前記回転
研摩輪を溶接パイプの外面ビード部の研摩作業に適用す
る本発明の研摩方法の実施列について説明する。Furthermore, the surface quality after polishing was also excellent. Next, a description will be given of a series of implementations of the polishing method of the present invention in which the rotary polishing wheel is applied to polishing the outer bead portion of a welded pipe.
第５図のように、溶接パイプ１０の外面く一ド１１の長
さ方向と研摩輪９の回転軸とのなす角度■を３０°−６
０°としてビード部１１を研摩する。As shown in FIG. 5, the angle ■ between the length direction of the outer surface of the welded pipe 10 and the rotational axis of the polishing wheel 9 is 30°-6.
The bead portion 11 is polished at 0°.
この角度が６０°を超えるとパイプの研摩面と非研摩面
との境界に段差がついてしまい、また３００より小さい
とビード部が平らになり所定の形状が得られないまま研
摩されてしまう。If this angle exceeds 60°, a step will be formed at the boundary between the polished and non-polished surfaces of the pipe, and if it is smaller than 300, the bead will become flat and will be polished without obtaining the desired shape.
なお、外面ビードを研摩する場合においても、研摩輪の
研摩布紙は新品を用いるよりも、砥粒がある程度摩耗し
て研摩能力の劣化した
ものを用いる方が研摩輪として優れた研摩能力を示し、
形状も円形より多角形の方が研摩能力において優れてい
る。Furthermore, when polishing the outer bead, it is better to use coated abrasive paper for the polishing wheel whose abrasive grains have been worn to some extent and its polishing ability has deteriorated, rather than using a new coated abrasive paper. ,
Polygonal shapes are also better in terms of polishing ability than circular shapes.
また、紙面に対し平行に砥粒が摩耗した研摩布紙を積み
重ねて円柱体とする場合、接着剤等を用いて研摩布紙な
互に接着しない方がよいのも同様である。Furthermore, when a cylindrical body is formed by stacking coated abrasive papers whose abrasive grains have been worn parallel to the plane of the paper, it is also better not to adhere the coated abrasive papers to each other using an adhesive or the like.
実施例 ２
ＳＵＳ３ｏ４溶接パイプの外面ビード研摩に本発明の回
転研摩輪と従来のエンドレスベルトグラインダーを用い
た場合について比較した。Example 2 A comparison was made between the use of the rotary polishing wheel of the present invention and a conventional endless belt grinder for polishing the external bead of a SUS3o4 welded pipe.
＊第５図に示すように、溶接パイプ１０を移送
装置１２に乗せ、外面ビード１１を一定位置に保持する
ようにして長さ方向に送る。*As shown in FIG. 5, the welded pipe 10 is placed on the transfer device 12 and fed in the longitudinal direction while keeping the outer bead 11 in a fixed position.
このとき、溶接パイプ１０の外面ビード１１の長さ方向
に対して研摩輪９をα＝４５°になるように設け、回転
させた。At this time, the polishing wheel 9 was provided at an angle of α=45° with respect to the length direction of the outer bead 11 of the welded pipe 10 and rotated.
研摩輪９は円形に切り出し紙面に対し平行に砥粒が摩耗
した研摩布紙を重ねて作成したものを用いた。The abrasive wheel 9 was made by cutting out circular abrasive paper and stacking abrasive cloth paper with abrasive grains worn parallel to the surface of the paper.
なお、従来列としては、エンドレスベルトグラインダー
を用いα＝０８になるように、セットし回
転させた。As for the conventional row, an endless belt grinder was used and set and rotated so that α=08.
結果は第２表に示すとおりであって、本発明の研摩輪お
よび研摩方法を用いることにより、従来のエンドレスベ
ルトグラインダーを用いた場合と同様の研摩能力で寿命
、コストが著しく向上した。The results are shown in Table 2, and by using the polishing wheel and polishing method of the present invention, the life and cost were significantly improved with the same polishing ability as when using a conventional endless belt grinder.
以上説明したように、本発明の回転研摩輪は、研摩輪の
形状が被研摩面に短時間でなじむとともに研摩能力が一
定で優れており、かつ、その寿命が長い。As explained above, the rotary polishing wheel of the present invention has an excellent shape that adapts to the surface to be polished in a short time, a constant polishing ability, and a long service life.
また、本発明の外面ビード研摩方法は、研摩効果が優れ
、かつ、ビード近傍の地金を削りすぎることがないので
研摩後の形状が改善される１なお、本発明の研摩輪は、
金属材料一般の表面手入れ、即ち平板の局部疵手入れ、
溶接部ビード研摩、パイプ外面の全面研摩等に適用でき
る。In addition, the external bead polishing method of the present invention has an excellent polishing effect, and the shape after polishing is improved because the base metal near the bead is not removed too much.
Surface care of metal materials in general, i.e. local flaw care of flat plates,
Applicable to weld bead polishing, full surface polishing of pipe outer surface, etc.
第１図ないし第６図は、本発明の一実施例を示したもの
であり、第１図は紙面に対し平行に砥粒が摩耗した研摩
布紙を円形に切り出し、−’ｆｆ１ｆ積み重ねて研摩輪
となす図、第２図は紙面に対し平行に砥粒が摩耗吠研摩
布紙を多角形に切り出し、七肴積み重ねて研摩輪とをす
図、第３図は鋼管を転送装置に刺せて回転？研摩輪で全
面研摩する図、第４図は第３図のＡ−Ａ矢視図、第５図
は溶接パイプの外面ビードの長さ方向と研摩輪とのなす
角αを３０°−６０°としてビード部を研摩する図、第
６図は紙面に対し平行に砥粒が摩耗した研摩布紙の詳細
図である。
図面中、１は砥粒、２は紙面に対し平行に砥粒が摩耗し
た研摩布紙、３は円柱体、４は中心部、５はボルト、６
は側面、７は鋼管、８は転送装置、９は研摩輪、１０は
溶接パイプ、１１は外面ビード、１２は移送装置である
。Figures 1 to 6 show an embodiment of the present invention, and Figure 1 shows a circular cut out of cloth abrasive paper with abrasive grains worn parallel to the plane of the paper, stacked -'ff1f and polished. Figure 2 shows a polygon cut out of abrasive cloth paper with abrasive grains worn parallel to the surface of the paper, and stacks of seven pieces are stacked together to form a polishing ring. Figure 3 shows a steel pipe inserted into a transfer device. rotate? Figure 4 shows the entire surface being polished with a polishing wheel. Figure 4 is a view taken along arrow A-A in Figure 3. Figure 5 shows the angle α between the length direction of the outer bead of the welded pipe and the polishing wheel being 30° to 60°. FIG. 6 is a detailed view of the abrasive coated paper in which the abrasive grains are worn parallel to the plane of the paper. In the drawing, 1 is an abrasive grain, 2 is an abrasive coated paper with abrasive grains worn parallel to the paper surface, 3 is a cylindrical body, 4 is a central part, 5 is a bolt, 6
7 is a steel pipe, 8 is a transfer device, 9 is an abrasive wheel, 10 is a welded pipe, 11 is an external bead, and 12 is a transfer device.
Claims (1)
たは多角形に切り出し該円形または多角形の研摩布紙を
積み重ねて円柱体となし、該円柱体の上下両端面の中心
を結ぶ直線を回転軸とする該円柱体の側面を研摩面とし
たことを特徴とする回転研摩輪。 ２ 紙面に対し平行に砥粒が摩耗した研摩布紙を円形ま
たは多角形に切り出し該円形または多角形の研摩布紙を
積み重ねて円柱体となし、該円柱体の上下両端面の中心
を結ぶ直線を回転軸とする該円柱体の側面を研摩面とし
た回転研摩輪を使用し、該回転研摩輪の回転軸とビード
長さ方向のなす角度が３０°−６０°となるようにして
研摩することを特徴とする溶接パイプの外面ビード研摩
方法。[Claims] 1 Cut abrasive coated paper with abrasive grains worn parallel to the paper surface into circular or polygonal shapes, stack the circular or polygonal abrasive coated papers to form a cylinder, and form a cylinder at both upper and lower ends of the cylinder. A rotary polishing wheel characterized in that the side surface of the cylindrical body whose axis of rotation is a straight line connecting the centers of the surfaces is used as a polishing surface. 2 Cut the abrasive coated paper whose abrasive grains have worn parallel to the paper surface into a circular or polygonal shape, stack the circular or polygonal abrasive coated papers to form a cylinder, and draw a straight line connecting the centers of both the upper and lower end surfaces of the cylinder. Polishing is carried out using a rotating polishing wheel whose rotational axis is , and the side surface of the cylindrical body is the polishing surface, and the angle between the rotational axis of the rotary polishing wheel and the bead length direction is 30°-60°. A method for polishing an outer surface bead of a welded pipe, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54046591A JPS5816989B2 (en) | 1979-04-18 | 1979-04-18 | Rotary polishing wheel and method for polishing external bead of welded pipe using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54046591A JPS5816989B2 (en) | 1979-04-18 | 1979-04-18 | Rotary polishing wheel and method for polishing external bead of welded pipe using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55144972A JPS55144972A (en) | 1980-11-12 |
| JPS5816989B2 true JPS5816989B2 (en) | 1983-04-04 |
Family
ID=12751529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54046591A Expired JPS5816989B2 (en) | 1979-04-18 | 1979-04-18 | Rotary polishing wheel and method for polishing external bead of welded pipe using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816989B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008012123A (en) * | 2006-07-07 | 2008-01-24 | Yuichiro Niizaki | Disc brush |
| JP5399167B2 (en) * | 2009-08-19 | 2014-01-29 | オリンパス株式会社 | Polishing method |
| CN106272007B (en) * | 2016-09-25 | 2018-07-10 | 中绿新材料（江苏）有限公司 | A kind of pipeline outer ring cutting robot |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49103087U (en) * | 1972-12-25 | 1974-09-04 |
-
1979
- 1979-04-18 JP JP54046591A patent/JPS5816989B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55144972A (en) | 1980-11-12 |
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