JP2024017619A - Rotary cutter for removing deposits on steel material - Google Patents
Rotary cutter for removing deposits on steel material Download PDFInfo
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- JP2024017619A JP2024017619A JP2022120376A JP2022120376A JP2024017619A JP 2024017619 A JP2024017619 A JP 2024017619A JP 2022120376 A JP2022120376 A JP 2022120376A JP 2022120376 A JP2022120376 A JP 2022120376A JP 2024017619 A JP2024017619 A JP 2024017619A
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- rotary cutter
- polishing
- spatter
- width
- steel material
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- 239000000463 material Substances 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 15
- 239000010959 steel Substances 0.000 title claims abstract description 15
- 238000005498 polishing Methods 0.000 claims abstract description 27
- 238000003466 welding Methods 0.000 claims abstract description 6
- 239000006061 abrasive grain Substances 0.000 claims description 9
- 229910003460 diamond Inorganic materials 0.000 claims description 6
- 239000010432 diamond Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 239000011324 bead Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 210000002105 tongue Anatomy 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Images
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
本発明は、鋼材を溶接する際に発生するスパッタ等と称される突起状の溶着物を除去するのに用いられる回転刃物に関する。 TECHNICAL FIELD The present invention relates to a rotary blade used to remove protruding deposits called spatter that occur when welding steel materials.
各種構造物は、鋼材をアーク溶接等の各種溶接にて製作されている。
この溶接の際には、溶融した金属の粒子が飛び散り、いわゆるスパッタと称される突起物が溶接ビードの周囲に発生する。
そのような場合に、スパッタを除去する必要が生じる。
構造物等は、Ｈ鋼，Ｉ鋼，箱鋼等の鋼材が用いられ、これらを鉄板等を用いて溶接接合することから、溶接ビート凹部状の角部に集中して溶着したスパッタが発生しやすく、スパッタの除去作業が大変であった。
これらのスパッタをグラインダー等にて除去しようとすると、鋼材の母材も削り込んでしまい、母材が欠損してしまう問題があった。
また、回転する砥石では外周角部の磨り減りが大きく、角部のスパッタ除去作業の形状に適合する寿命が極端に短い問題があった。
そこで従来は、スケラーとハンマーで斫り取っていたが、その作業は大変な労力を必要として、スパッタの除去作業に長時間を要していた。
Various structures are manufactured using various types of welding such as arc welding using steel materials.
During this welding, particles of molten metal are scattered, and protrusions called spatter are generated around the weld bead.
In such cases, it becomes necessary to remove spatter.
Steel materials such as H steel, I steel, and box steel are used for structures, and because these materials are welded together using iron plates, etc., welded spatter is generated concentrated at the corners of the weld bead recesses. However, it was difficult to remove the spatter.
If an attempt is made to remove these spatters using a grinder or the like, there is a problem in that the base material of the steel material is also ground away, resulting in damage to the base material.
In addition, the rotating grindstone suffers from a large amount of abrasion at the outer periphery corners, and has an extremely short lifespan that adapts to the shape of the spatter removal work at the corners.
Conventionally, the spatter was removed using a scaler and a hammer, but this required a lot of effort and took a long time to remove the spatter.
特許文献１には、円盤状鋼の周縁部に放射状の切溝を設けることで、複数の舌片を形成し、この舌片を上下方向に段違いに配置したスパッタ除去用工具を開示する。
しかし、段違いの複数舌片状の刃先では，凹部状の角部と平坦部を適宜使い分けて研磨する研磨には不適であった。
However, a cutting edge with multiple tongues at different levels is not suitable for polishing in which the concave corner portion and the flat portion are selectively used for polishing.
本発明は、母材の欠損を抑えることができ、溶接ビート凹部角部の溶着物の除去作業も容易で、寿命の長い溶着物除去用回転刃物の提供を目的とする。 SUMMARY OF THE INVENTION The present invention aims to provide a rotary blade for removing welded materials that can suppress damage to the base material, facilitate removal of welded materials from the corners of recessed portions of weld bead, and has a long life.
本発明に係る溶着物除去用回転刃物は、鋼材を溶接した際に周囲に発生した溶着物を除去するための回転刃物であって、前記回転刃物は円盤状のベース部と、前記ベース部にリング状に形成した研磨部とを有し、前記研磨部は半径方向の溝部を複数有し、前記溝部の幅は１～３ｍｍの範囲であり、深さが３ｍｍ以上であることを特徴とする。 A rotary blade for removing welded materials according to the present invention is a rotary blade for removing welded materials generated around steel materials when welding, and the rotary blade includes a disc-shaped base portion and a base portion attached to the base portion. and a ring-shaped polishing part, the polishing part has a plurality of radial grooves, the width of the grooves is in the range of 1 to 3 mm, and the depth is 3 mm or more. .
本発明において特徴的なのは、リング状の研磨部に幅１～３ｍｍで、深さ３ｍｍ以上の複数の半径方向の溝部を形成した点にある。
これにより、この溝部に突起状の溶着物（スパッタ）が入り込み、斫り取るように研磨することができる。
これにより、母材を削り取ることなく、刃物の平面と側面でスパッタを除去でき、回転刃物の跳ね返りも小さい。
このように回転刃物の跳ね返りが小さいことは、特に凹部状の角部に溶着したスパッタを除去する際に安定した回転による除去作業ができる。
A feature of the present invention is that a plurality of radial grooves each having a width of 1 to 3 mm and a depth of 3 mm or more are formed in the ring-shaped polishing part.
As a result, a protruding welded material (spatter) enters the groove and can be polished to be scooped out.
As a result, spatter can be removed on the plane and side surfaces of the blade without scraping off the base material, and the rebound of the rotary blade is also small.
The fact that the rotary cutter has little rebound makes it possible to perform the removal work by stable rotation, especially when removing spatter deposited on the corners of a recessed part.
本発明において、研磨部は砥粒がダイヤモンド砥粒であり、ボンド（結合剤）がコバルト系のメタルボンドであり、集中度が４～２６の範囲であるのが好ましい。
ダイヤモンド砥粒の結合剤にコバルト系のメタルボンドを用いたのは、ブロンズ系のメタルボンドでは柔らかすぎて、研磨部の減耗が早いためである。
また、集中度（コンセントレーション）は、ボンド中の砥粒率を表すが、体積比でボンド中の砥粒が２５％の場合を集中度１００となる。
集中度が４未満では、減耗が速く、２６を超えるとダイヤモンド砥粒が密集しすぎて研磨性が低下することから、集中度は４～２６の範囲が好ましい。
また、ダイヤモンド砥粒の大きさはメッシュで＃２０～＃１００程度が好ましい。
In the present invention, it is preferable that the abrasive grains in the polishing part are diamond abrasive grains, the bond (binder) is a cobalt-based metal bond, and the concentration is in the range of 4 to 26.
The reason why cobalt-based metal bond was used as the binder for the diamond abrasive grains is that bronze-based metal bond is too soft and wears out the polished part quickly.
Further, the degree of concentration (concentration) represents the percentage of abrasive grains in the bond, and when the abrasive grains in the bond are 25% in volume ratio, the concentration is 100.
If the concentration is less than 4, the wear is rapid, and if it exceeds 26, the diamond abrasive grains become too dense and the polishing performance deteriorates, so the concentration is preferably in the range of 4 to 26.
Further, the size of the diamond abrasive grains is preferably about #20 to #100 in terms of mesh.
本発明において、研磨部はリング幅（チップ幅）が５～１０ｍｍで外周側コーナー部Ｒが１ｍｍ以上になると平坦面の再研磨可能であるのが好ましい。
鋼材の凹部状の角部の溶接ビード周辺に発生したスパッタ除去を多用するにはチップ角部の消耗が早く、リング状のチップ幅が小さい方が工具の製作費が安価で、平坦部研磨の作業性もよい。
その際に、チップの外周側先端のコーナー部が平面より先行してＲ形状に減耗することから、減耗量がＲで１ｍｍ以上になると凹部状の角部の研磨機能を失うため，表面を平坦面に再研磨することで再び凹部状の角部の研磨に適した刃物形状に戻り工具寿命が長くなる。
In the present invention, it is preferable that the polishing part has a ring width (chip width) of 5 to 10 mm and a flat surface can be re-polished when the outer corner R is 1 mm or more.
If the spatter generated around the weld bead on the concave corner of steel is often removed, the tip corner will wear out quickly, and the smaller the ring-shaped tip, the cheaper the manufacturing cost of the tool, and the more difficult it will be to polish flat areas. Workability is also good.
At this time, the corner part at the tip of the outer periphery of the tip wears out in an R shape before the flat surface, so if the amount of wear exceeds 1 mm in R, the polishing function of the concave corner part is lost, so the surface is flattened. By re-polishing the surface, the tool returns to a shape suitable for polishing concave corners and extends the life of the tool.
本発明に係る回転刃物は、リング状のチップに幅１～３ｍｍの半径方向溝部を形成したことにより、母材を欠損させることなくスパッタの除去ができ、リング状のチップ幅を５～１０ｍｍ程度にすることで、凹部状の角部と平坦部に溶着したスパッタの除去が容易になる。また、再研磨することで刃物消耗によるコストが大幅に低減できる。 The rotary cutter according to the present invention has a radial groove with a width of 1 to 3 mm in the ring-shaped tip, so that spatter can be removed without damaging the base material, and the width of the ring-shaped tip can be reduced to about 5 to 10 mm. By doing so, it becomes easy to remove spatter deposited on the concave corners and flat parts. In addition, re-sharpening can significantly reduce the cost of blade wear.
本発明に係る回転刃物の例を以下図に基づいて説明する。
図１（ａ）に、工具の全体構造例を示す。
工具本体部１は、ハンディ型であり、エアー駆動やモーター駆動等の回転軸部２を有し、この回転軸部２に本発明に係る回転刃物１０を取り付けて使用する。
工具の回転数は、５０００ｒｐｍレベルが好ましい。
An example of a rotary cutter according to the present invention will be explained below based on the drawings.
FIG. 1(a) shows an example of the overall structure of the tool.
The tool
The rotational speed of the tool is preferably at the 5000 rpm level.
回転刃物１０は、図１（ｂ）に平面図，図１（ｃ）にＡ－Ａ線断面端面図を示すように、外径が７５ｍｍの円盤状のベース部１１にリング状の研磨部（チップ）１２を形成してある。
チップは幅ｄ：７ｍｍ，高さｈ：１０ｍｍに設定した。
本実施例では、溝部の幅２ｍｍで、８つの溝部を形成した例になっている。
工具本体部１には、取付孔１４を介して取り付ける。
The
The chip was set to have a width d: 7 mm and a height h: 10 mm.
In this embodiment, eight grooves are formed, each having a width of 2 mm.
It is attached to the
図２に構造物の例を示し、鋼材を用いて構造物Ｗの凹部状の角部に溶接ビードＢで示すように溶接された例になっていて、図２（ｂ）に拡大図を示すように角部Ｃの溶接ビードＢ周辺に溶着物として散乱状にスパッタＳが付着している。 Figure 2 shows an example of a structure in which a steel material is welded to the concave corner of the structure W as shown by a weld bead B, and an enlarged view is shown in Figure 2(b). As shown, spatter S is scattered as a weld deposit around the weld bead B at the corner C.
このようなスパッタＳを除去するには、図３に示すように工具を手で持ち、回転刃物の先端部が角部Ｃに入り込むようにし、スパッタＳを除去することになる。
本発明に係る回転刃物の特徴を図３（ｂ）にて説明する（図３（ｂ）では溝部を分かりやすくするために、大きく表現してある。）。
市販されているダイヤモンド刃物は、主に平坦部を研磨するのが目的となっているのに対して、本発明に係る回転刃物は、溝部の幅を１～３ｍｍ，溝部の深さを３ｍｍ以上にするとともに、チップ幅を５～１０ｍｍに選定したことにより、図３（ｂ）に示すように平坦部の研磨のみならず、溶接ビート凹部の角部付近に溶着したスパッタに対しても安定した回転が得られ、研磨作業が容易になる。
特に、図４に模式図を示すようにスパッタＳの先端部が回転刃物１０の研磨部１２の溝部１３に入り込み、深さ３ｍｍ以上の溝部１３から研磨除去されるので、構造部Ｗの母材を欠損することなく、図４（ｂ）に模式図を示すように研磨されたスパッタ残部Ｓ０のようになる。
To remove such spatter S, hold the tool in your hand as shown in FIG. 3 so that the tip of the rotary blade enters the corner C, and remove the spatter S.
The features of the rotary cutter according to the present invention will be explained with reference to FIG. 3(b) (in FIG. 3(b), the grooves are shown enlarged for easy understanding).
Commercially available diamond cutters are mainly intended for polishing flat parts, whereas the rotary cutter according to the present invention has a groove width of 1 to 3 mm and a groove depth of 3 mm or more. In addition, by selecting a chip width of 5 to 10 mm, it is stable not only against polishing of flat areas but also against spatter deposited near the corners of weld bead recesses, as shown in Figure 3(b). Rotation is obtained, making polishing work easier.
In particular, as shown in the schematic diagram in FIG. 4, the tip of the sputter S enters the
図５には、研磨部１２の減耗変化を示す。
チップの外周部先端部のコーナー部が減耗されやすく、図５（ｂ）に示すようにＲが１ｍｍ以上になると、図５（ｃ）に示すように先端部１２ｂを研削し、平坦面のチップ１２ａに再生しながら使用できるので、角部研磨に適した形状に戻り回転刃物の寿命が長くなる。
FIG. 5 shows changes in wear of the
The corner portion of the tip of the outer periphery of the tip is easily worn out, and when the R becomes 1 mm or more as shown in FIG. 5(b), the
１ 工具本体部
２ 回転軸部
１０ 回転刃物
１１ ベース部
１２ 研磨部
１３ 溝部
1 Tool body part 2
Claims (3)
前記回転刃物は円盤状のベース部と、前記ベース部にリング状に形成した研磨部とを有し、
前記研磨部は半径方向の溝部を複数有し、
前記溝部の幅は１～３ｍｍの範囲であり、深さが３ｍｍ以上であることを特徴とする溶着物除去用回転刃物。 A rotary blade for removing deposits generated around steel materials when welding them,
The rotary cutter has a disc-shaped base portion and a ring-shaped polishing portion formed on the base portion,
The polishing part has a plurality of radial grooves,
A rotary knife for removing deposits, characterized in that the width of the groove is in the range of 1 to 3 mm, and the depth is 3 mm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022120376A JP7320220B1 (en) | 2022-07-28 | 2022-07-28 | Rotary blade for removing deposits from steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022120376A JP7320220B1 (en) | 2022-07-28 | 2022-07-28 | Rotary blade for removing deposits from steel |
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| Publication Number | Publication Date |
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| JP7320220B1 JP7320220B1 (en) | 2023-08-03 |
| JP2024017619A true JP2024017619A (en) | 2024-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2022120376A Active JP7320220B1 (en) | 2022-07-28 | 2022-07-28 | Rotary blade for removing deposits from steel |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6112624U (en) * | 1984-06-27 | 1986-01-24 | 東急車輌製造株式会社 | Spatter removal tool |
| JPH11170176A (en) * | 1997-12-12 | 1999-06-29 | Toshiba Mach Co Ltd | Composite grinding tool |
| JP2004527384A (en) * | 2000-12-09 | 2004-09-09 | サンーゴバン アブレイシブズ，インコーポレイティド | Abrasive wheel with workpiece visual characteristics |
-
2022
- 2022-07-28 JP JP2022120376A patent/JP7320220B1/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6112624U (en) * | 1984-06-27 | 1986-01-24 | 東急車輌製造株式会社 | Spatter removal tool |
| JPH11170176A (en) * | 1997-12-12 | 1999-06-29 | Toshiba Mach Co Ltd | Composite grinding tool |
| JP2004527384A (en) * | 2000-12-09 | 2004-09-09 | サンーゴバン アブレイシブズ，インコーポレイティド | Abrasive wheel with workpiece visual characteristics |
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