JP4948062B2 - Deburring method and apparatus - Google Patents

Deburring method and apparatus Download PDF

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JP4948062B2
JP4948062B2 JP2006191090A JP2006191090A JP4948062B2 JP 4948062 B2 JP4948062 B2 JP 4948062B2 JP 2006191090 A JP2006191090 A JP 2006191090A JP 2006191090 A JP2006191090 A JP 2006191090A JP 4948062 B2 JP4948062 B2 JP 4948062B2
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tool
cooling fluid
deburring
burr
drill
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JP2008018485A (en
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真素美 下村
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Komatsu NTC Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a deburring technique utilizing low-temperature brittleness of work. <P>SOLUTION: In order to remove burr 17, 17 caused in the intersecting part 15 of two drilled holes 11, 13, the burr 17, 17 and the intersecting part 15 are cooled to cause embrittlement of the burr. The burr 17, 17 embrittled by cooling is removed. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

本発明は、2つのドリル穴の交差部に生じたバリを除去する技術に関する。   The present invention relates to a technique for removing burrs generated at the intersection of two drill holes.

金属のワークにドリルで開けた2つのドリル穴の交差部にできるバリを除去する方法として、従来は、工具の形状、工具の回転方向、加工順序等を工夫した種々のものが知られている。例えば、特許文献1にはバリ取り方法、特許文献2及び3にはバリ取りに用いるバリ取り工具が開示されている。
特開平9−290308号公報 特開2005−169517号公報 特開平11−33807号公報
As a method for removing a burr formed at the intersection of two drill holes drilled in a metal workpiece, various methods in which the shape of the tool, the rotation direction of the tool, the processing sequence, etc. have been devised are known. . For example, Patent Document 1 discloses a deburring method, and Patent Documents 2 and 3 disclose a deburring tool used for deburring.
JP-A-9-290308 JP 2005-169517 A JP-A-11-33807

しかしながら、ワークが、クランクシャフト等に用いられるような延性の強い素材である場合は、なかなかバリが除去されないことがあった。   However, when the workpiece is a material having strong ductility such as that used for a crankshaft or the like, burrs are sometimes not easily removed.

また、鋼は、氷点下以下のある温度になると脆くなる低温脆性という性質が知られている。   Steel is also known for its low-temperature brittleness that becomes brittle at a certain temperature below freezing point.

そこで、本発明の目的は、ワークの低温脆性を利用したバリ取り技術を提供することである。   Accordingly, an object of the present invention is to provide a deburring technique using the low temperature brittleness of a workpiece.

本発明の一実施態様に従うバリ取り方法は、2つのドリル穴(11,13)の交差部(15)に生じたバリ(17)を除去する方法である。つまり、前記バリを冷却して前記バリを脆化させ、脆化したバリを取る。   The deburring method according to an embodiment of the present invention is a method for removing a burr (17) generated at an intersection (15) of two drill holes (11, 13). That is, the burr is cooled to embrittle the burr, and the embrittled burr is removed.

好適な実施態様では、前記2つのドリル穴のいずれかに挿入したノズル(21)または工具(31)から冷却流体(A)を吐出して、前記バリ及び前記交差部を局所的に冷却するようにしてもよい。   In a preferred embodiment, a cooling fluid (A) is discharged from a nozzle (21) or a tool (31) inserted into one of the two drill holes so as to locally cool the burr and the intersection. It may be.

本発明の一実施態様に従うバリ取り装置は、2つのドリル穴(11,13)の交差部(15)に生じたバリ(17)を除去する装置である。そして、前記バリを冷却する冷却手段(21,31,A)と、前記冷却により脆化したバリを取るバリ取り手段(31,35)と、を備える。   The deburring device according to an embodiment of the present invention is a device for removing a burr (17) generated at an intersection (15) of two drill holes (11, 13). And it has a cooling means (21, 31, A) for cooling the burr and a deburring means (31, 35) for removing a burr embrittled by the cooling.

以下、本発明の実施形態に係るバリ取り方法及びバリ取り装置について、図面を参照して説明する。   Hereinafter, a deburring method and a deburring apparatus according to an embodiment of the present invention will be described with reference to the drawings.

図1は、第1の実施形態に係るバリ取り方法の一例を示す図である。   FIG. 1 is a diagram illustrating an example of a deburring method according to the first embodiment.

鋼などのワークにドリル穴11を開けた後、これに交差するようにドリル穴13を開けると、その交差部15にバリ17、17が生じる。本実施形態では、交差部15の近傍へ局所的に冷却流体Aを流し込んで冷却し、鋼の低温脆性によりバリ17,17を脆化させたのち、除去する。   After drill holes 11 are drilled in a workpiece such as steel, drill holes 13 are formed so as to intersect with the drill holes 11. In this embodiment, the cooling fluid A is locally poured into the vicinity of the intersecting portion 15 to be cooled, and the burrs 17 and 17 are embrittled by the low temperature brittleness of the steel and then removed.

ここで、バリが脆化するのに適当な冷却温度は、ワークの炭素含有量により異なる。例えば、炭素含有量が0.40%C程度であれば、摂氏−20度以下になるように冷却するのが好ましく、摂氏−40度以下であればさらに好ましい。そこで、冷却流体Aは、例えば、冷却エアあるいは液体窒素などを用いることができる。   Here, the cooling temperature suitable for burr embrittlement varies depending on the carbon content of the workpiece. For example, if the carbon content is about 0.40% C, it is preferable to cool it to −20 degrees Celsius or less, and more preferably −40 degrees Celsius or less. Thus, for example, cooling air or liquid nitrogen can be used as the cooling fluid A.

冷却流体Aを流し込むため、本実施形態では、冷却流体の流路33を有する工具31を用いる。すなわち、ドリル穴11及びドリル穴13を開けた後、再び先に開けたドリル穴11から工具31を交差部15の手前まで挿入して、バリ17,17を冷却するために冷却流体Aを注入する。そして、バリ17,17が脆化すると、工具31をさらに挿入して脆化したバリ17,17を除去する。   In order to flow the cooling fluid A, in this embodiment, a tool 31 having a cooling fluid flow path 33 is used. That is, after the drill hole 11 and the drill hole 13 are opened, the tool 31 is inserted from the drill hole 11 that has been drilled again to the front of the intersection 15 and the cooling fluid A is injected to cool the burrs 17 and 17. To do. When the burrs 17 and 17 become brittle, the tool 31 is further inserted to remove the brittle burrs 17 and 17.

ここで用いる工具31は、例えば、内部に冷却流体の流路を備えたドリルでもよいし、同様に流路を備えた丸棒などでもよい。   The tool 31 used here may be, for example, a drill having a cooling fluid channel therein or a round bar having a channel in the same manner.

図2は、第1の実施形態に係るバリ取り方法のためのバリ取り装置を示す。   FIG. 2 shows a deburring device for the deburring method according to the first embodiment.

このバリ取り装置は、ドリル駆動装置5と、冷却流体供給装置6と、ドリル駆動装置5及び冷却流体供給装置6を制御するコントローラ7とを備える。冷却流体Aは、冷却流体供給装置6から供給路61を介してドリル駆動装置5へ供給される。ドリル駆動装置5のチャック51には工具31が取り付けられていて、冷却流体Aが工具31内の流路33へ流れ込む。   The deburring device includes a drill driving device 5, a cooling fluid supply device 6, and a controller 7 that controls the drill driving device 5 and the cooling fluid supply device 6. The cooling fluid A is supplied from the cooling fluid supply device 6 to the drill driving device 5 through the supply path 61. A tool 31 is attached to the chuck 51 of the drill driving device 5, and the cooling fluid A flows into the flow path 33 in the tool 31.

図3は、バリ取りの手順を示すフローチャートである。   FIG. 3 is a flowchart showing a deburring procedure.

まず、コントローラ7の制御に従って、ドリル駆動装置5が工具31をドリル穴11へ挿入する(S11)。   First, the drill driving device 5 inserts the tool 31 into the drill hole 11 according to the control of the controller 7 (S11).

ドリル駆動装置5は、工具31を、その先端が交差部15に到達する前で停止させる。ここで、冷却流体供給装置6がコントローラ7の制御に従って冷却流体Aを供給すると、冷却流体Aが供給路61及び流路33を通って、工具31の先端から吐出される(S12)。これにより、バリ17,17は冷却されて脆化する。   The drill driving device 5 stops the tool 31 before the tip of the tool 31 reaches the intersection 15. Here, when the cooling fluid supply device 6 supplies the cooling fluid A according to the control of the controller 7, the cooling fluid A is discharged from the tip of the tool 31 through the supply path 61 and the flow path 33 (S12). Thereby, the burrs 17 and 17 are cooled and become brittle.

そして、ドリル駆動装置5は、工具31をさらに挿入する(S13)。   Then, the drill driving device 5 further inserts the tool 31 (S13).

これにより、脆化したバリ17、17を確実に除去できる。   Thereby, the embrittled burrs 17 and 17 can be reliably removed.

次に、図4は第2の実施形態に係るバリ取り方法の一例を示す図である。   Next, FIG. 4 is a diagram illustrating an example of a deburring method according to the second embodiment.

この実施形態では、工具とは別のノズル21を用いて冷却流体を供給する。すなわち、同図に示すように、後に開けたドリル穴13からノズル21を挿入し、ノズル21の先端から冷却流体Aを吐出させて、バリ17,17を冷却する。そして、先に開けたドリル穴11から工具35を挿入してバリ17,17を除去する。   In this embodiment, the cooling fluid is supplied using a nozzle 21 different from the tool. That is, as shown in the figure, the nozzle 21 is inserted from the drill hole 13 opened later, and the cooling fluid A is discharged from the tip of the nozzle 21 to cool the burrs 17 and 17. And the tool 35 is inserted from the drill hole 11 opened previously, and the burr | flashes 17 and 17 are removed.

ここで、ノズル21は、ドリル穴11に工具35の反対側から挿入してもよい。あるいは、工具35を挿入する前に、ノズル21を工具35と同じ側からドリル穴11へ挿入し、冷却流体Aを吐出した後ノズル21を抜き取って、工具35を挿入してバリ17,17を除去するようにしてもよい。   Here, the nozzle 21 may be inserted into the drill hole 11 from the opposite side of the tool 35. Alternatively, before inserting the tool 35, the nozzle 21 is inserted into the drill hole 11 from the same side as the tool 35, and after discharging the cooling fluid A, the nozzle 21 is extracted, and the tool 35 is inserted to insert the burrs 17, 17. You may make it remove.

また、工具35は、ドリルであってもよいし、丸棒などでもよい。   The tool 35 may be a drill or a round bar.

図5は、第2の実施形態に係るバリ取り方法のためのバリ取り装置を示す。   FIG. 5 shows a deburring apparatus for the deburring method according to the second embodiment.

このバリ取り装置は、第1位置の実施形態と同様に、ドリル駆動装置5と、冷却流体供給装置6と、ドリル駆動装置5及び冷却流体供給装置6を制御するコントローラ7とを備える。冷却流体供給装置6は、ノズル21のドリル穴への挿入、引き抜きを制御するとともに、冷却流体Aをノズル21先端から吐出させる。ドリル駆動装置5のチャック51には、工具35が装着されている。   This deburring device includes a drill driving device 5, a cooling fluid supply device 6, and a controller 7 that controls the drill driving device 5 and the cooling fluid supply device 6, as in the first position embodiment. The cooling fluid supply device 6 controls insertion and extraction of the nozzle 21 from the drill hole and discharges the cooling fluid A from the tip of the nozzle 21. A tool 35 is attached to the chuck 51 of the drill driving device 5.

図6は、バリ取りの手順を示すフローチャートである。   FIG. 6 is a flowchart showing a deburring procedure.

まず、コントローラ7の制御に従って、冷却流体供給装置6がノズル21をドリル穴13へ挿入する(S21)。そして、冷却流体供給装置6は、ノズル21の先端から冷却流体を吐出させる(S22)。これにより、バリ17,17は冷却されて脆化する。   First, under the control of the controller 7, the cooling fluid supply device 6 inserts the nozzle 21 into the drill hole 13 (S21). And the cooling fluid supply apparatus 6 discharges a cooling fluid from the front-end | tip of the nozzle 21 (S22). Thereby, the burrs 17 and 17 are cooled and become brittle.

その後、ドリル駆動装置5は、コントローラ7の制御従い、工具35をドリル穴11から挿入し、バリ17,17を除去する(S23)。   Thereafter, the drill driving device 5 inserts the tool 35 from the drill hole 11 and removes the burrs 17 and 17 in accordance with the control of the controller 7 (S23).

なお、第1及び第2の実施形態ともに、工具は、ドリル穴11よりもやや小さい径を有するものでよい。工具の径をドリル穴11よりもやや小さくすることで、穴を傷つけずに、バリ17,17のみを除去できる。また、この場合、工具は、回転させながら挿入してもよいし、回転させずに挿入してもよい。   In both the first and second embodiments, the tool may have a diameter slightly smaller than the drill hole 11. By making the tool diameter slightly smaller than the drill hole 11, only the burrs 17 can be removed without damaging the hole. In this case, the tool may be inserted while being rotated, or may be inserted without being rotated.

あるいは、工具は、バリ取り加工用専用の工具でもよい。例えば、特開2005−169517のようなドリル穴11よりやや大きい径を有し、スリットにより縮径可能な回転工具でもよい。   Alternatively, the tool may be a dedicated tool for deburring. For example, a rotary tool having a slightly larger diameter than that of the drill hole 11 as disclosed in JP-A-2005-169517 and capable of being reduced in diameter by a slit may be used.

さらには、工具は、ドリル穴11よりやや大きな径の金属ブラシでもよい。この場合、金属ブラシを回転させながら挿入するようにしてもよい。   Further, the tool may be a metal brush having a diameter slightly larger than that of the drill hole 11. In this case, the metal brush may be inserted while rotating.

また、工具は、ワークよりも低温脆性に強い材料で構成されていてもよい。   Moreover, the tool may be comprised with the material strong against low temperature brittleness rather than a workpiece | work.

工具を用いる代わりに、ドリル穴11に粉体を高速で流してもよい。   Instead of using a tool, the powder may flow through the drill hole 11 at a high speed.

上述した本発明の実施形態は、本発明の説明のための例示であり、本発明の範囲をそれらの実施形態にのみ限定する趣旨ではない。当業者は、本発明の要旨を逸脱することなしに、他の様々な態様で本発明を実施することができる。   The above-described embodiments of the present invention are examples for explaining the present invention, and are not intended to limit the scope of the present invention only to those embodiments. Those skilled in the art can implement the present invention in various other modes without departing from the gist of the present invention.

例えば、上述の実施形態では、バリ及びその近傍を局所的に冷却しているが、ワーク全体を冷却するようにしてもよい。また、上述の実施形態では、冷却流体を吐出して、バリを冷却した後に工具を挿入しているが、冷却流体を吐出している最中に工具を挿入するようにしてもよい。   For example, in the above-described embodiment, the burr and the vicinity thereof are locally cooled, but the entire workpiece may be cooled. In the above-described embodiment, the tool is inserted after the cooling fluid is discharged and the burr is cooled. However, the tool may be inserted while the cooling fluid is discharged.

本発明の第1の実施形態に係るバリ取り方法の一例を示す。1 shows an example of a deburring method according to a first embodiment of the present invention. 第1の実施形態に係るバリ取り装置を示す。1 shows a deburring device according to a first embodiment. 第1の実施形態のバリ取りの手順を示すフローチャートである。It is a flowchart which shows the procedure of the deburring of 1st Embodiment. 本発明の第2の実施形態に係るバリ取り方法の一例を示す。An example of the deburring method which concerns on the 2nd Embodiment of this invention is shown. 第2の実施形態に係るバリ取り装置を示す。The deburring apparatus which concerns on 2nd Embodiment is shown. 第2の実施形態のバリ取りの手順を示すフローチャートである。It is a flowchart which shows the procedure of the deburring of 2nd Embodiment.

符号の説明Explanation of symbols

5…ドリル駆動装置、6…冷却流体供給装置、7…コントローラ、11,13…ドリル穴、15…交差部、17…バリ、21…ノズル、31,35…工具、33…流路。 DESCRIPTION OF SYMBOLS 5 ... Drill drive device, 6 ... Cooling fluid supply device, 7 ... Controller, 11, 13 ... Drill hole, 15 ... Intersection, 17 ... Burr, 21 ... Nozzle, 31, 35 ... Tool, 33 ... Flow path.

Claims (2)

2つのドリル穴(11,13)の交差部(15)に生じたバリ(17)を除去する方法であって、
前記2つのドリル穴のいずれかに工具(31)を挿入し、
前記工具の先端から冷却流体(A)を吐出して、前記バリ及び前記交差部局所的に冷却し、
前記工具をさらに挿入して、冷却により脆化した前記バリを取る、バリの除去方法。
A method of removing a burr (17) generated at an intersection (15) of two drill holes (11, 13),
Insert a tool (31) into one of the two drill holes,
A cooling fluid (A) is discharged from the tip of the tool to locally cool the burrs and the intersections ,
A method for removing burrs, wherein the tool is further inserted to remove the burrs embrittled by cooling .
2つのドリル穴(11,13)の交差部(15)に生じたバリ(17)を除去する装置であって、
先端に冷却流体(A)の吐出口を有する工具(31)と、
前記2つのドリル穴のいずれかに前記工具を挿入させ、その先端が前記交差部に到達す る前で、前記吐出口から冷却流体を吐出させ、その後前記工具をさらに挿入させる、コン トローラ(7)と、を備えたバリ取り装置。
A device for removing burrs (17) generated at the intersection (15) of two drill holes (11, 13),
A tool (31) having a discharge port for cooling fluid (A) at the tip;
Wherein the tool is inserted into either of the two drill holes, before the leading edge it reaches the intersection, from said discharge port to eject cooling fluid, thereafter further inserting the tool, controller (7 And a deburring device.
JP2006191090A 2006-07-12 2006-07-12 Deburring method and apparatus Expired - Fee Related JP4948062B2 (en)

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JP7264089B2 (en) * 2020-03-05 2023-04-25 Jfeスチール株式会社 Deburring method, cooling equipment, deburring equipment and method for manufacturing workpiece

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JPH09290308A (en) * 1996-04-24 1997-11-11 Toyota Motor Corp Burr removing method
JP3546915B2 (en) * 1997-07-14 2004-07-28 トヨタ自動車株式会社 Cross drilling method and drilling tool
JP4496701B2 (en) * 2002-05-27 2010-07-07 パナソニック電工株式会社 Cutting tool processing method and apparatus, and inner blade for electric razor
JP2005169517A (en) * 2003-12-08 2005-06-30 Sumitomo Electric Hardmetal Corp Deburring tool
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