JP2008023558A - Weld bead removing apparatus - Google Patents
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- JP2008023558A JP2008023558A JP2006198834A JP2006198834A JP2008023558A JP 2008023558 A JP2008023558 A JP 2008023558A JP 2006198834 A JP2006198834 A JP 2006198834A JP 2006198834 A JP2006198834 A JP 2006198834A JP 2008023558 A JP2008023558 A JP 2008023558A
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Abstract
Description
本発明は、切削加工および研削加工による溶接ビード除去装置に関するものである。本来の意味では切削加工は刃物による加工方法であり、研削加工は研磨具による加工方法であるが、以下の記載においては、説明すべき装置の機構自体に際立った差異がないところから、区別する必要がある場合を除いて研削は切削に含まれるものとする。 The present invention relates to an apparatus for removing a weld bead by cutting and grinding. In the original sense, cutting is a processing method using a blade, and grinding is a processing method using a polishing tool. However, in the following description, a distinction is made because there is no significant difference in the mechanism of the device to be described. Grinding shall be included in the cut unless necessary.
金属同士の接合方法としての溶接は、強い接合強度が容易に得られることから非常に有用なものであり、金属の様々な接合局面において各種方法の溶接が採用されている。これら種々の溶接のうち多くの場合に、溶接後の金属表面接合部付近に主として溶加金属から成る溶接ビードと呼ばれている金属の盛り上がりが見られ、場合によっては窪みが発生する。このうちの窪みについては、接合部強度の低下を招くのでここでは論外であるが、接合部付近の溶接ビードと呼ばれている金属の盛り上がりは、溶接後に組み合わせる他の部材との関係や美観の上から好ましくないことが多くある。 Welding as a joining method between metals is very useful because a strong joining strength can be easily obtained, and various kinds of welding are employed in various joining aspects of metals. In many cases among these various types of welding, a metal swell called a weld bead mainly made of a filler metal is seen near the metal surface joint after welding, and a dent is generated in some cases. Of these depressions, the strength of the joint is reduced, so this is out of the question here, but the rise of the metal called the weld bead near the joint is related to other parts combined after welding and the aesthetics. There are many unfavorable things from above.
上記の場合には何らかの方法で溶接ビードを除去する必要があり、通常は砥石を用いて研削したり刃物で切削したりする方法が採られる。本発明の溶接ビード除去装置は鋼管に用途を限定するものではないが、鋼管の外面ビードを除去するものとして、次のものが提案されている。
金属同士を溶接すると、溶接時に高温に晒された中心部分が常温に戻る際に収縮するのに対し、溶接時に高温に晒されなかった周辺部分は寸法変化が少なく溶接部分に歪みが発生するので、溶接後の金属にはゆがみや反りが生じるが、溶接母材が板状である場合や部材の厚さが薄い場合、また溶接時に加えられた熱量が大きい場合には特にゆがみや反りの量が大きい。このような原因で溶接後の金属表面にゆがみや反りがある場合、従来の溶接ビードを除去する機械では研削や切削の際に削り残しや削り過ぎの部分ができることから金属表面の一様な研削や切削が困難であった。このため溶接ビードを除去するには簡単な機械や工具を使用する手作業に頼るのが最も一般的であり、これには騒音とともに金属粉の飛散する環境での肉体を駆使しての作業となるのが現状であった。 When metals are welded together, the central part exposed to high temperature during welding shrinks when it returns to room temperature, whereas the peripheral part that was not exposed to high temperature during welding has little dimensional change and distortion occurs in the welded part. The welded metal may be distorted or warped, but the amount of distortion or warpage is particularly large when the weld base is plate-shaped or when the thickness of the member is thin or when the amount of heat applied during welding is large. Is big. If the metal surface after welding is distorted or warped due to these reasons, the conventional machine that removes the weld bead can leave uncut or over-machined parts during grinding or cutting. And cutting was difficult. For this reason, the most common method for removing the weld bead is to rely on manual operations using simple machines and tools. This involves working with the body in an environment where metal powder is scattered along with noise. It was the current situation.
発明が解決しようとする課題は、溶接後の金属表面にゆがみや反りがある場合にも削り残しや削り過ぎのない溶接ビードの除去装置を提供することであり、溶接ビードの除去時の作業環境を改善でき、しかも板状の被加工物にも手軽に使用でき、作業にともなう肉体の負担が軽い溶接ビードの除去装置を実現させることである。 The problem to be solved by the invention is to provide a welding bead removing device that does not leave uncut or overcut even when there is distortion or warping on the surface of the metal after welding. It is possible to realize a welding bead removal device that can be improved for a plate-like workpiece and can be easily used for a work piece with a light physical burden.
上記課題を達成するために、架台に動力により回転する切削刃物を取り付けるとともに、切削刃物側方に被加工物押さえロールを回動自在に取り付け、上記の切削刃物と被加工物押さえロールを一体的に被加工物に押圧する被加工物押圧機構と押圧される被加工物の反力受圧板を持つことを特徴とする溶接ビード除去装置とした。 In order to achieve the above-mentioned problems, a cutting blade that is rotated by power is attached to the gantry, and a workpiece pressing roll is rotatably attached to the side of the cutting blade so that the cutting blade and the workpiece pressing roll are integrated. The weld bead removing device is characterized by having a workpiece pressing mechanism that presses the workpiece and a reaction force receiving plate of the workpiece to be pressed.
また、上記のものに切削刃物先端に対する被加工物押さえロールの突出量を変化させる方法による切削深さ調節機構を加えた溶接ビード除去装置としたり、前記切削刃物を研削砥石に置き換えた溶接ビード除去装置としたりした。 In addition, a weld bead removal device in which a cutting depth adjustment mechanism is added to the above-described method by changing the protrusion amount of the workpiece pressing roll relative to the tip of the cutting blade, or a welding bead removal in which the cutting blade is replaced with a grinding wheel. I made a device.
さらに、前記のものに、被加工物の固定機構と被加工物送り機構を加えた溶接ビード除去装置とした。 Furthermore, a weld bead removing device is provided in which a workpiece fixing mechanism and a workpiece feeding mechanism are added to the above-described one.
本発明は、溶接後の金属表面にゆがみや反りがある場合にも削り残しや削り過ぎのない溶接ビード切削装置を提供し、溶接ビードの切削作業環境を改善するとともに、作業にともなう肉体の負担が軽い溶接ビード除去装置を実現させた。 The present invention provides a weld bead cutting device that does not leave uncut or excessively cut even when the metal surface after welding is distorted or warped, and improves the cutting work environment of the weld bead and the burden on the body accompanying the work. Realized a light weld bead removal device.
本発明を実施するための最良の形態を図に基づいて説明する。図１は、本発明の溶接ビード除去装置１を示す図である。図１では、架台２に動力により回転する切削刃物３を取り付けるとともに、上記の切削刃物３側方に被加工物４押さえロール５を回動自在に取り付けるが、図１のものでは、被加工物４押さえロール５は溶接ビード７を中心にこれを跨ぐように複数個取り付けて被加工物４を反力受圧板９に向かって強く押し付けることができる配置にしている。 The best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 is a view showing a weld bead removing device 1 of the present invention. In FIG. 1, the cutting blade 3 that is rotated by power is attached to the gantry 2, and the workpiece 4 holding roll 5 is rotatably attached to the side of the cutting blade 3. A plurality of four press rolls 5 are attached so as to straddle the weld bead 7 as a center so that the workpiece 4 can be strongly pressed toward the reaction force pressure plate 9.
また、切削刃物３と被加工物４押さえロール５を被加工物４から一定の距離に保って切削深さを設定する。これは切削刃物３と被加工物４押さえロール５の軸が平行である場合には切削刃物３と被加工物４押さえロール５の直径を調整することでも容易に実現できるが、ほかに切削刃物３と被加工物４との距離を調整する方法によっても良く、切削刃物３と被加工物４押さえロール５の軸が直交あるいは、直交に近い場合には、切削刃物３の突き出し量を調整することでも容易に実現できる。これらの調節がハンドルを回すなどして簡単に加減できる切り込み量調節機構を備えると好ましい。 Further, the cutting depth is set by keeping the cutting blade 3 and the workpiece 4 holding roll 5 at a certain distance from the workpiece 4. This can be easily realized by adjusting the diameters of the cutting blade 3 and the workpiece 4 pressing roll 5 when the axes of the cutting blade 3 and the workpiece 4 pressing roll 5 are parallel. The distance between the workpiece 3 and the workpiece 4 may be adjusted. When the axes of the cutting blade 3 and the workpiece 4 holding roll 5 are orthogonal or close to orthogonal, the amount of protrusion of the cutting blade 3 is adjusted. Can easily be realized. It is preferable to provide an incision amount adjusting mechanism that can easily adjust these adjustments by turning the handle.
更に、切削刃物３と被加工物押さえロール５を一体的に被加工物に押圧する被加工物押圧機構６および、押圧される被加工物４の反力受圧板９を備えるが、反力受圧板９は切削加工の基準面となるので鋼など堅固な材料を用いて表面を平滑にして置き、場合によっては、溶接裏面に発生しがちな凸部が障害にならないように窪みを設ける。 Further, the apparatus includes a workpiece pressing mechanism 6 that integrally presses the cutting blade 3 and the workpiece pressing roll 5 against the workpiece, and a reaction force pressure plate 9 of the workpiece 4 to be pressed. Since the plate 9 serves as a reference surface for cutting, the surface is smoothed using a hard material such as steel, and in some cases, a recess is provided so that the convex portion that tends to occur on the back of the weld does not become an obstacle.
本発明の溶接ビード除去装置１を用いて金属表面の不要な溶接ビード７を除去しようとする場合、まず、図１で示すように、被加工物４の反力受圧板９上に被加工物４を置く。その後、図２で示すように、架台２上に切削刃物３と被加工物押さえロール５を回動自在に取り付けたものを被加工物押圧機構６で一体的に被加工物４に押圧し、切削刃物３を回転させながら溶接ビード７に沿って被加工物４上を移動させる。 When the unnecessary weld bead 7 on the metal surface is to be removed using the weld bead removing device 1 of the present invention, first, as shown in FIG. 1, the workpiece is placed on the reaction force pressure plate 9 of the workpiece 4. Put four. After that, as shown in FIG. 2, the work piece pressing mechanism 6 integrally presses the work piece pressing mechanism 5 and the cutting blade 3 and the work piece pressing roll 5 that are mounted on the gantry 2, The workpiece 4 is moved along the weld bead 7 while rotating the cutting blade 3.
反力受圧板９上にある被加工物４は、切削刃物３側方の被加工物押さえロール５によって反力受圧板９に押し付けられるが、被加工物４押さえロール５は溶接ビード７を中心にして溶接ビード７を跨ぐように複数個取り付けてあるので、被加工物４を強く押圧することで被加工物４は反力受圧板９表面の平滑な形に倣うようになる。切削刃物３は被加工物４押さえロール５の中央に位置する溶接ビード７上にあるので、反力受圧板９表面の平滑な形に倣った被加工物４を精度良く切削することができる。この際、被加工物４押さえロール５先端からの切削刃物３の突き出す量を加減する機構を加えておくと、母材表面上に削り残す溶接ビード７の高さを調節することができる。 The workpiece 4 on the reaction force receiving plate 9 is pressed against the reaction force receiving plate 9 by the workpiece pressing roll 5 on the side of the cutting blade 3, but the workpiece 4 pressing roll 5 is centered on the weld bead 7. Thus, the plurality of workpieces 4 are attached so as to straddle the weld beads 7, and the workpiece 4 follows the smooth shape of the surface of the reaction force pressure plate 9 by strongly pressing the workpiece 4. Since the cutting blade 3 is on the weld bead 7 positioned at the center of the workpiece 4 pressing roll 5, the workpiece 4 that follows the smooth shape of the surface of the reaction force receiving plate 9 can be cut with high accuracy. At this time, if a mechanism for adjusting the amount of the cutting blade 3 protruding from the tip of the workpiece 4 holding roll 5 is added, the height of the weld bead 7 left to be cut on the surface of the base material can be adjusted.
一般に溶接された板の厚さが小さい場合には歪量が大きくなるが、この場合には板の剛性も小さいので被加工物押圧機構６による歪補正効果が大きい。また、溶接された板の厚さが小さい場合には切削時に刃物から発生する振動が被加工物４と共振して騒音の原因となるばかりか、被加工物４の振動が切削刃物３の寿命を著しく短縮させ、また、被加工物４の仕上がりを悪くする原因ともなっていたが、被加工物押圧機構６を備える本発明の溶接ビード除去装置１では、被加工物４押さえロール５が切削刃物３近くで被加工物４を強く押圧するので上記問題を解決できる。 In general, when the thickness of the welded plate is small, the amount of distortion increases. In this case, however, the rigidity of the plate is also small, so that the distortion correction effect by the workpiece pressing mechanism 6 is large. Further, when the thickness of the welded plate is small, the vibration generated from the blade during cutting resonates with the workpiece 4 and causes noise, and the vibration of the workpiece 4 causes the life of the cutting blade 3 to be used. In the weld bead removing device 1 of the present invention having the workpiece pressing mechanism 6, the workpiece 4 pressing roll 5 is a cutting blade. Since the workpiece 4 is strongly pressed near 3, the above problem can be solved.
溶接された板の厚さが大きい場合には被加工物押圧機構６の押圧力を増すことによって被加工物４の歪補正を図るが、一般に板の厚さが大きい場合には溶接による歪量は少ないものとなり、被加工物４の振動も少なくなる。 When the thickness of the welded plate is large, the distortion of the workpiece 4 is corrected by increasing the pressing force of the workpiece pressing mechanism 6, but generally when the plate is thick, the amount of distortion caused by welding. And the vibration of the workpiece 4 is also reduced.
図３は、本発明の溶接ビード除去装置１の１実施例を示す図である。本発明の溶接ビード除去装置１は、装備する切削刃物３を研削砥石１１に置き換え、これに見合った回転数を与えることで研削方式の溶接ビード除去装置とすることができる。溶接ビード７の材質によっては研削方式の溶接ビード除去方法が優れている場合もある。 FIG. 3 is a view showing an embodiment of the weld bead removing device 1 of the present invention. The weld bead removal device 1 of the present invention can be a grinding-type weld bead removal device by replacing the equipped cutting blade 3 with a grinding wheel 11 and giving a rotational speed commensurate with this. Depending on the material of the weld bead 7, there may be an excellent method of removing the weld bead using a grinding method.
図４は、本発明の溶接ビード除去装置１の他の実施例を示す図である。被加工物送り機構１３を加えた溶接ビード除去装置とすると、溶接ビードの除去作業を省力化あるいは自動化できるので作業者の負担が軽減され、作業環境も改善できる。この被加工物送り機構１３は、図４のように、被加工物４を動かさずに、溶接ビード除去装置の架台２側を移動させる機構であってもよい。図では、架台２に動力により回転する切削刃物３を取り付けるとともに、切削刃物３側方に被加工物４押さえロール５を回動自在に取り付けるが、この押さえロール５が切削刃物３近くで被加工物４を強く押圧して切削刃物３の近辺では歪が補正され溶接ビード７が精度よく取り除かれている。また、押えロール５を上下させることで切削刃物３の突き出し量を加減できる切り込み量調節機構８を備えるので、母材表面上に削り残す溶接ビード７の高さを調節することができる。 FIG. 4 is a view showing another embodiment of the weld bead removing device 1 of the present invention. If the weld bead removing device to which the workpiece feeding mechanism 13 is added is employed, the work of removing the weld bead can be saved or automated, so that the burden on the operator is reduced and the working environment can be improved. As shown in FIG. 4, the workpiece feed mechanism 13 may be a mechanism that moves the gantry 2 side of the weld bead removing device without moving the workpiece 4. In the figure, a cutting blade 3 that is rotated by power is attached to the gantry 2, and a workpiece 4 pressing roll 5 is rotatably attached to the side of the cutting blade 3, and the pressing roll 5 is processed near the cutting blade 3. The object 4 is strongly pressed and the distortion is corrected in the vicinity of the cutting blade 3, and the weld bead 7 is removed with high accuracy. Moreover, since the cut amount adjusting mechanism 8 that can adjust the protruding amount of the cutting blade 3 by moving the presser roll 5 up and down is provided, the height of the weld bead 7 to be left on the base material surface can be adjusted.
図５は、本発明の溶接ビード除去装置１の他の実施例を示す図である。被加工物４の形状に合わせた被加工物固定機構１２と被加工物送り機構１３を加えた溶接ビード除去装置とすると溶接ビード７除去作業を能率よくできる。図５は、被加工物４の例として、クレーンブームの溶接の際に生じた溶接ビード７を専用の被加工物固定機構１２で固定している状況が示されている。被加工物４は紙面に対して垂直方向に固定されている筒状のものであり、流体の圧力で外に向かって伸張する固定具で反力受圧板９上に固定される方式の被加工物固定機構１２を持つものである。 FIG. 5 is a view showing another embodiment of the weld bead removing device 1 of the present invention. If the welding bead removing device is provided with the workpiece fixing mechanism 12 and the workpiece feeding mechanism 13 matched to the shape of the workpiece 4, the welding bead 7 can be removed efficiently. FIG. 5 shows, as an example of the workpiece 4, a situation in which the weld bead 7 generated when the crane boom is welded is fixed by a dedicated workpiece fixing mechanism 12. The workpiece 4 has a cylindrical shape that is fixed in a direction perpendicular to the paper surface and is fixed on the reaction force receiving plate 9 with a fixture that extends outward by the pressure of the fluid. The object fixing mechanism 12 is provided.
本発明の溶接ビードの除去装置１は、被加工物固定機構１２に工夫を加えることで板状に限らず筒状や複雑形状の被加工物４にも使用でき、先端工具を適宜選択することで鋳造物のバリ取り作業にも使用できるものである。 The welding bead removal apparatus 1 of the present invention can be used not only for a plate shape but also for a cylindrical or complex workpiece 4 by adding a device to the workpiece fixing mechanism 12, and appropriately selecting a tip tool. It can also be used for deburring work of castings.
１ 本発明溶接ビード除去装置
２ 架台
３ 切削刃物
４ 被加工物
５ 被加工物押さえロール
６ 押圧機構
７ 溶接ビード
８ 切り込み量調節機構
９ 反力受圧板
１０ 窪み
１１ 研削砥石
１２ 被加工物固定機構
１３ 被加工物送り機構
DESCRIPTION OF SYMBOLS 1 This invention bead removal apparatus 2 Base 3 Cutting blade 4 Workpiece 5 Workpiece press roll 6 Pressing mechanism 7 Welding bead 8 Cutting amount adjustment mechanism 9 Reaction force pressure receiving plate 10 Depression 11 Grinding wheel 12 Workpiece fixing mechanism 13 Workpiece feed mechanism
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| JP2006198834A JP2008023558A (en) | 2006-07-21 | 2006-07-21 | Weld bead removing apparatus |
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| JP2006198834A JP2008023558A (en) | 2006-07-21 | 2006-07-21 | Weld bead removing apparatus |
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| JP2008023558A true JP2008023558A (en) | 2008-02-07 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010058442A1 (en) * | 2008-11-20 | 2010-05-27 | 日本省力機械株式会社 | Cutting device and cut processing method |
| CN102407472A (en) * | 2011-11-07 | 2012-04-11 | 方大新材料（江西）有限公司 | Polishing method and tooling for surplus height of weld joint |
| JP2015071203A (en) * | 2013-10-03 | 2015-04-16 | 大同特殊鋼株式会社 | Weld bead cutting device |
| JP2016137529A (en) * | 2015-01-26 | 2016-08-04 | 大同特殊鋼株式会社 | Cutting device |
| CN109590836A (en) * | 2018-11-09 | 2019-04-09 | 韩东良 | A kind of hardware rotary grinding apparatus of iron plate weld mark |
| JP2020069617A (en) * | 2018-11-02 | 2020-05-07 | トヨタ自動車株式会社 | Weld bead cutting device and weld bead cutting method |
| CN112077696A (en) * | 2020-09-02 | 2020-12-15 | 江苏省建筑工程集团有限公司 | Welding machine convenient for positioning and used for curtain wall construction |
| CN112548316A (en) * | 2020-12-02 | 2021-03-26 | 四川航天长征装备制造有限公司 | Weld joint deburring and quality detection device and method |
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2006
- 2006-07-21 JP JP2006198834A patent/JP2008023558A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4819968B2 (en) * | 2008-11-20 | 2011-11-24 | 日本省力機械株式会社 | Cutting apparatus and cutting method |
| WO2010058442A1 (en) * | 2008-11-20 | 2010-05-27 | 日本省力機械株式会社 | Cutting device and cut processing method |
| CN102407472A (en) * | 2011-11-07 | 2012-04-11 | 方大新材料（江西）有限公司 | Polishing method and tooling for surplus height of weld joint |
| CN102407472B (en) * | 2011-11-07 | 2014-07-09 | 方大新材料（江西）有限公司 | Polishing method and tooling for surplus height of weld joint |
| JP2015071203A (en) * | 2013-10-03 | 2015-04-16 | 大同特殊鋼株式会社 | Weld bead cutting device |
| JP2016137529A (en) * | 2015-01-26 | 2016-08-04 | 大同特殊鋼株式会社 | Cutting device |
| JP7047711B2 (en) | 2018-11-02 | 2022-04-05 | トヨタ自動車株式会社 | Welding bead cutting equipment |
| JP2020069617A (en) * | 2018-11-02 | 2020-05-07 | トヨタ自動車株式会社 | Weld bead cutting device and weld bead cutting method |
| CN111136844A (en) * | 2018-11-02 | 2020-05-12 | 丰田自动车株式会社 | Weld cutting device and weld cutting method |
| US11919090B2 (en) | 2018-11-02 | 2024-03-05 | Toyota Jidosha Kabushiki Kaisha | Weld bead cutting device |
| CN109590836A (en) * | 2018-11-09 | 2019-04-09 | 韩东良 | A kind of hardware rotary grinding apparatus of iron plate weld mark |
| CN112077696A (en) * | 2020-09-02 | 2020-12-15 | 江苏省建筑工程集团有限公司 | Welding machine convenient for positioning and used for curtain wall construction |
| CN112548316A (en) * | 2020-12-02 | 2021-03-26 | 四川航天长征装备制造有限公司 | Weld joint deburring and quality detection device and method |
| CN112548316B (en) * | 2020-12-02 | 2023-08-29 | 四川航天长征装备制造有限公司 | Weld joint deburring and quality detection device and method |
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