JPH08336709A - Product material form and machining method - Google Patents
Product material form and machining methodInfo
- Publication number
- JPH08336709A JPH08336709A JP16309295A JP16309295A JPH08336709A JP H08336709 A JPH08336709 A JP H08336709A JP 16309295 A JP16309295 A JP 16309295A JP 16309295 A JP16309295 A JP 16309295A JP H08336709 A JPH08336709 A JP H08336709A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- cutting
- chips
- groove
- shape
- 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.)
- Granted
Links
Landscapes
- Drilling And Boring (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は製品にベアリング等を挿
入する内径をボーリング加工する製品の内周面および中
空の底面に、溝または窪みを設けたアルミダイキャスト
製品ＦＣ，ＦＣＤ等の鋳物製品、樹脂成形品等の素材形
状および同素材形状の加工方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a casting product such as an aluminum die cast product FC or FCD in which a groove or a recess is provided on the inner peripheral surface and hollow bottom surface of a product for which an inner diameter for inserting a bearing or the like into the product is bored. The present invention relates to a material shape such as a resin molded product and a method for processing the same material shape.
【０００２】[0002]
【従来の技術】従来例を図８〜９によって説明する。図
８は従来例の加工方法を説明する断面図、図９は図８に
対応する側面図である。アルミダイキャスト等製品で機
械加工を要する円筒状孔部に、切削代を設けて成形され
た製品の素材を切削加工する一般的な加工方法の従来技
術として、被切削物を回転させカッタ工具で切削するか
固定された被切削物を回転するカッタ工具で切削する方
法が取入れられており、該切削加工過程において発生す
る切り屑は帯状若しくは螺旋状で連続的に刃先より送り
だされる。2. Description of the Related Art A conventional example will be described with reference to FIGS. FIG. 8 is a cross-sectional view illustrating a conventional processing method, and FIG. 9 is a side view corresponding to FIG. As a conventional technique of the general processing method of cutting the material of the product molded with a machining allowance in the cylindrical hole that requires machining such as aluminum die casting, rotate the work piece and use a cutter tool. A method of cutting or cutting a fixed object to be cut with a rotating cutter tool is adopted, and chips generated in the cutting process are continuously sent out from the cutting edge in a strip shape or a spiral shape.
【０００３】また、切り屑を切断し断続的に送りだす方
法として既に公開提供されている一例の公開特許昭５５
−０４２７４６について説明する。従来技術の切欠き部
を持たない切削加工前の金属被削材を図８，９に示すよ
うな被削材１１において、内径切削を行う場合、被削材
１１の素材内径Ｄ0 、切削仕上げ内径Ｄ1 ，Ｄ2 、切削
切屑切断のための溝加工用カッタ１５の外径ｄ0 とする
と、被削材１１を適宜の手段で固定し、カッタ１５を回
転してＤ1 ，Ｄ2 の仕上がり径に対する溝Ｇはカッタ１
５の外径ｄ0 の中心位置を被削材１１の半径方向に移動
せしめ、切削後の仕上げ内面のそれぞれに僅かに痕跡が
残るか残らないかの程度に加工するだけで素材内面に半
月状に形成され、切削加工時の切り屑をこの溝により短
く切断して断続的に発生させることができる。[0003] Further, as an example of a method disclosed in Japanese Patent Laid-Open No. 55-55, which has already been provided to the public as a method for cutting chips and sending them out intermittently.
-042746 will be described. When the inner diameter of a metal workpiece before cutting, which does not have a notch in the prior art, is cut in the workpiece 11 as shown in FIGS. 8 and 9, the material inner diameter D 0 of the workpiece 11 and the cutting finish Assuming that the inner diameters D 1 and D 2 and the outer diameter d 0 of the groove cutting cutter 15 for cutting cutting chips are used, the work material 11 is fixed by an appropriate means, and the cutter 15 is rotated to change the diameter of D 1 and D 2 . Groove G for finished diameter is cutter 1
A half-moon shape is formed on the inner surface of the material by moving the center position of the outer diameter d 0 of 5 in the radial direction of the work material 11 and processing it so that traces are slightly left or not left on each of the finished inner surfaces after cutting. It is possible to generate chips intermittently by cutting the chips during the cutting process into short pieces by the grooves.
【０００４】[0004]
【発明が解決しようとする課題】従来技術の円筒孔を切
削加工する過程で、刃先から連続的に発生する帯状若し
くは螺旋状の切り屑が、被切削物や工具に巻きつくこと
によって、工具の刃先を損傷し内径仕上げ面に傷を発生
させたり工具欠損による寸度不良を発生させて品質を低
下させる上に、被切削物や工具に巻きついた切り屑を除
去するために加工ラインの停止・除去作業により、工具
の寿命・製品品質・作業効率が低下する等の問題があ
る。DISCLOSURE OF THE INVENTION In the process of cutting a cylindrical hole according to the prior art, strip-shaped or spiral-shaped chips continuously generated from a cutting edge are wound around an object to be cut or a tool, In addition to damaging the cutting edge and causing scratches on the finished surface of the inner diameter or defective dimensions due to tool loss, quality is deteriorated, and the machining line is stopped to remove the cutting material and the chips wound around the tool.・ Due to the removal work, there are problems such as reduction of tool life, product quality and work efficiency.
【０００５】なお、これらの不具合を除去するための切
削切屑切断のための溝を設けて、刃先から発生する切り
屑を断続的にする手段は、被切削材の円筒孔の内面に、
改めて機械加工による溝加工であり、そのために被切削
材の固定・芯だし、工具の交換等に多くの労力と時間を
要するために、コストアップとなる問題がある。また、
円筒孔の仕上げ内面に溝の痕跡が残ることによって、該
円筒孔に嵌入するベアリング等の縮合力が低下し品質の
低下する問題がある。In order to eliminate these problems, a groove for cutting chips is provided to intermittently cut the chips generated from the cutting edge.
The groove machining is performed again, which requires a lot of labor and time for fixing and centering the material to be cut, and for exchanging tools, which causes a problem of cost increase. Also,
Since the traces of the groove remain on the finished inner surface of the cylindrical hole, there is a problem that the condensing force of the bearing or the like fitted in the cylindrical hole decreases and the quality deteriorates.
【０００６】本発明の目的は、前記問題を解決し素材の
円筒状孔をボーリングする過程で発生する切り屑が断片
的に放出される素材の形状及び加工方法を提供するにあ
る。An object of the present invention is to solve the above problems and provide a material shape and a processing method in which chips generated in the process of boring a cylindrical hole of the material are discharged in pieces.
【０００７】[0007]
【課題を解決するための手段】第１発明の製品素材形状
は円筒状に機械加工を要する孔部の形状を製品の素材成
形段階において、円筒内周部に切削代Ｔ3 の二分の一程
度の深さＴ1 を有する凹溝１ｂを軸方向に等間隔に複数
個設け、また中空を有する底部にも同様に切削代Ｔ4 の
二分の一程度の深さＴ2 を有する凹溝１ｄを放射状に複
数個設けて、該凹溝の断面形状は上面と下面を僅かな傾
斜をもった側面で形成した素材をもって、断続的な切り
屑のボーリング加工を可能としたことを特徴とする。The product material shape of the first invention is such that the shape of the hole which needs to be machined into a cylindrical shape is about one half of the cutting allowance T 3 on the inner peripheral part of the cylinder in the material forming step of the product. A plurality of recessed grooves 1b having a depth T 1 at equal intervals in the axial direction, and a recessed groove 1d having a depth T 2 that is about one half of the cutting allowance T 4 is also provided in the hollow bottom portion. A plurality of radial grooves are provided, and the cross-sectional shape of the concave groove is characterized by enabling intermittent boring of chips by using a material whose upper surface and lower surface are formed by side surfaces having a slight inclination.
【０００８】第２発明の製品素材形状は第１発明におい
て、中空を有する底部に切削代の二分の一程度の深さを
有する凹溝１ｈを螺旋状に複数個設けることを特徴とし
ている。The product material shape of the second invention is characterized in that, in the first invention, a plurality of concave grooves 1h having a depth of about ½ of the cutting allowance are provided spirally in the hollow bottom portion.
【０００９】第３発明の製品素材形状は第１発明におい
て、中空を有する底部に切削代の二分の一程度の深さを
有する半円状の窪み１ｌ，１ｍを複数個設けることを特
徴としている。The product material shape of the third invention is characterized in that, in the first invention, a plurality of semi-circular recesses 1l, 1m having a depth of about one half of the cutting allowance are provided in the hollow bottom. .
【００１０】第４発明の製品素材形状は第１、２発明に
おいて、円筒内周部および中空を有する底部に設けられ
た凹溝１ｂ，１ｄ，１ｈの断面形状を、半円形の溝１
ｒ，１ｓ，１ｗで形成したことを特徴としている。In the product material shape of the fourth invention, in the first and second inventions, the cross-sectional shape of the concave grooves 1b, 1d, 1h provided in the cylindrical inner peripheral portion and the hollow bottom portion is changed to the semicircular groove 1.
It is characterized by being formed by r, 1s, and 1w.
【００１１】第５発明の製品素材加工方法は製品素材の
円筒状孔部３に複数の溝１ｂ，１ｒまたは窪みを予め形
成する成形加工工程と、同素材の円筒状孔部をボーリン
グ加工する際、同溝又は窪みにより切削屑１ａ，１ｂを
断続的に生成する切削加工工程とからなることを特徴と
している。The product material processing method according to the fifth aspect of the present invention comprises a forming step for forming a plurality of grooves 1b, 1r or depressions in the cylindrical hole portion 3 of the product material in advance, and a boring process for the cylindrical hole portion of the same material. , And a cutting step of intermittently generating the cutting chips 1a and 1b by the grooves or depressions.
【００１２】[0012]
【作用】円筒状孔の内周軸方向および底面に溝部を設け
て形成された製品の素材をボーリング加工機のベースに
固定し、回転部に装着された工具の回転下降によって、
素材の内径は切削されるがその際、発生する切り屑は、
溝の有無箇所によって厚みが相違することにより工具の
抵抗を受けて、亀裂を生じて連続排出される過程で溝部
の凹凸連結箇所の厚みが相違する部分において切断され
て、断続的な切り屑として工具の回転により外部に排出
される。また、中空孔を有する底面はカッタの下刃面の
回転により断続した切り屑となり、円筒部と同様に外部
に排出されることによって、底面を持った円筒孔の加工
は問題なく完了する。[Operation] The material of the product formed by providing the groove portion on the inner peripheral axial direction and the bottom surface of the cylindrical hole is fixed to the base of the boring machine, and by the rotation lowering of the tool mounted on the rotating portion,
The inner diameter of the material is cut, but the chips generated at that time are
Due to the difference in thickness depending on the presence or absence of the groove, it receives the resistance of the tool, and it is cut at the part where the thickness of the concavo-convex connection part of the groove part is different in the process of generating cracks and being continuously discharged, resulting in intermittent chips. It is discharged outside by the rotation of the tool. Further, the bottom surface having the hollow hole becomes an intermittent chip due to the rotation of the lower blade surface of the cutter, and is discharged to the outside like the cylindrical portion, so that the processing of the cylindrical hole having the bottom surface is completed without any problem.
【００１３】[0013]
【実施例】本発明に係る第１実施例を図１，図２，図５
によって説明する。図１は本発明に係る第１実施例の孔
部の溝形状と工具を示す斜視図、図２は孔部底面の溝形
状を示す図１に対応する上面図、図５は第１実施例の切
削工程を示す斜視図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment according to the present invention is shown in FIGS.
It will be explained by. 1 is a perspective view showing a groove shape of a hole and a tool of a first embodiment according to the present invention, FIG. 2 is a top view corresponding to FIG. 1 showing a groove shape of a bottom surface of the hole, and FIG. 5 is a first embodiment. It is a perspective view which shows the cutting process of.
【００１４】図１，２において、アルミダイキャスト等
によって成形された被切削材１には円筒状の孔３が設け
られ、該孔３は素材内径Ａ1 で深さＢ1 に成形され、内
周部に深さＴ1 を有する凹溝１ｂが軸方向に等間隔に複
数個配設されており、底部には内径Ａ2 の中空孔が設け
られ深さＴ2 を有する凹溝１ｄが、図２に示すように放
射状に配設されている。In FIGS. 1 and 2, a material 1 to be cut formed by aluminum die casting or the like is provided with a cylindrical hole 3, and the hole 3 is formed to have a material inner diameter A 1 and a depth B 1 , A plurality of recessed grooves 1b having a depth T 1 are provided in the peripheral portion at equal intervals in the axial direction, hollow holes having an inner diameter A 2 are provided in the bottom portion, and a recessed groove 1d having a depth T 2 is provided. They are arranged radially as shown in FIG.
【００１５】尚、円筒状の孔３の内径Ａ1 は凸部１ａに
切削代Ｔ3 が設けてあり、該切削代Ｔ3 の二分の一程度
が前記凹溝１ｂの深さＴ1 である。また、円筒状の孔３
の底部にも凸部１ｃに切削代Ｔ4 が設けてあり、該切削
代Ｔ4 の二分の一程度が前記溝１ｄの深さＴ2 である。
凸部１ａ，１ｃの上面と凹溝１ｂ，１ｄの上面はある程
度の傾斜をもった面でつながれている。The inner diameter A 1 of the cylindrical hole 3 is provided with a cutting allowance T 3 on the convex portion 1a, and about one half of the cutting allowance T 3 is the depth T 1 of the concave groove 1b. . Also, the cylindrical hole 3
A cutting allowance T 4 is also provided on the bottom of the convex portion 1c, and about one half of the cutting allowance T 4 is the depth T 2 of the groove 1d.
The upper surfaces of the convex portions 1a and 1c and the upper surfaces of the concave grooves 1b and 1d are connected by a surface having a certain degree of inclination.
【００１６】工具５にはバイト６を固着する接面５ａ，
５ｂが設けられ、該接面５ａ，５ｂに前記バイト６の固
着面６ｄ，６ｃを当接し、図示されないボルトによって
不動に固定されている。A contact surface 5a for fixing the cutting tool 6 to the tool 5,
5b is provided, the fixing surfaces 6d, 6c of the cutting tool 6 are brought into contact with the contact surfaces 5a, 5b, and are fixed immovably by bolts (not shown).
【００１７】また、バイト６の刃先角６ａおよび刃先面
６ｂはアルミダイキャスト製品の被切削材１の内径Ａの
内周側面および底面を切削可能に堅牢な刃先を備え、該
工具５は図示されないボーリング機械の回転するスピン
ドルのチャックに取り付け孔５ｃを介して着脱自在に装
着される構造となっている。Further, the cutting edge angle 6a and the cutting edge surface 6b of the cutting tool 6 are provided with a robust cutting edge capable of cutting the inner peripheral side surface and the bottom surface of the inner diameter A of the workpiece 1 of the aluminum die-cast product, and the tool 5 is not shown. The structure is such that it is removably mounted on the chuck of the rotating spindle of the boring machine through the mounting hole 5c.
【００１８】次に以上の如く構成された第１実施例の作
用を図１および図５によって説明する。図において、ア
ルミダイキャスト等の製法によって円筒状の孔３に上記
で説明したように凹溝１ｂ，１ｄは、図示されない成形
型によって成形鋳造された被切削材１を図示されないボ
ーリング機械等の固定ベースに、芯だし等の調整をし、
切削加工可能に固定して、工具５を取り付け孔５ｃを介
して図示しない回転スピンドルのチャックに固着して、
切削加工の準備を完了する。Next, the operation of the first embodiment constructed as described above will be described with reference to FIGS. In the drawing, as described above, the concave grooves 1b and 1d are formed in the cylindrical hole 3 by a manufacturing method such as aluminum die casting. The workpiece 1 molded and cast by a molding die (not shown) is fixed to a boring machine (not shown). Adjust the centering etc. to the base,
It is fixed so that it can be cut, and the tool 5 is fixed to the chuck of the rotary spindle (not shown) through the mounting hole 5c.
Complete the preparation for cutting.
【００１９】つぎに、定められた回転数、送り速度で回
転するスピンドルのチャックに固着された工具５が下降
し、被切削材１に当接し円筒状の孔３の切削加工が開始
されて、バイト６の刃先角６ａおよび刃先面６ｂによっ
て、前記被切削材１の円筒状の孔３の内径Ａ1 は内径Ａ
に切削され、切り屑が刃面６ｅで抵抗を受けながら、上
方に押し上げられて切り屑に三分の二程度の亀裂が入り
凸部１ａと厚みの薄い凹溝１ｂの連結部分で切断され、
断続的な切り屑１ａ，１ｂとして回転する工具５によっ
て被切削材１の上部に排出されて、前記被切削材１は円
筒状の内径Ａ、深さＢ1 の寸度に仕上げられる。Next, the tool 5 fixed to the chuck of the spindle rotating at a predetermined number of revolutions and feed speed descends, comes into contact with the workpiece 1, and the machining of the cylindrical hole 3 is started. Due to the cutting edge angle 6a and the cutting edge surface 6b of the cutting tool 6, the inner diameter A 1 of the cylindrical hole 3 of the workpiece 1 is the inner diameter A
And the chips are pushed upward while receiving resistance at the blade surface 6e, cracks of about two-thirds are formed in the chips, and the chips are cut at the connecting portion of the convex portion 1a and the thin groove 1b,
Intermittent chip 1a, the tool 5 that rotates 1b is discharged to the upper portion of the cutting material 1, the object cutting material 1 is cylindrical having an inner diameter A, and finished to the dimensional depth B 1.
【００２０】被切削材１の円筒状底の凸部１ｃと放射状
の凹溝１ｄは前記バイト６の刃先面６ｂによって、断続
的な切り屑として回転する工具５によって上部に排出さ
れて、前記被切削材１は円筒状の孔３は内径Ａ、深さＢ
寸度に切削仕上げられて、該被切削材１は円筒状の孔３
にはベアリング等の挿入可能な製品となる。The cylindrical bottom convex portion 1c and the radial concave groove 1d of the work material 1 are discharged to the upper portion by the cutting edge surface 6b of the cutting tool 6 and by the tool 5 which rotates as intermittent chips, and are The cutting material 1 has a cylindrical hole 3 having an inner diameter A and a depth B.
The material 1 to be cut is cut into a cylindrical hole 3
It will be a product such as a bearing that can be inserted.
【００２１】本発明に係る第２実施例を図１，３によっ
て説明する。図３は本発明の第２実施例の孔部底面の溝
形状を示す上面図であり、前記第１実施例との相違点に
ついて図１，図３によって説明する。図１において、ア
ルミダイキャスト等によって成形する被切削材１には円
筒状の孔３が設けられており、該孔３の円筒部分および
工具５については第１実施例と同様であり説明を省略す
る。A second embodiment according to the present invention will be described with reference to FIGS. FIG. 3 is a top view showing the groove shape on the bottom surface of the hole portion of the second embodiment of the present invention. Differences from the first embodiment will be described with reference to FIGS. In FIG. 1, a material to be cut 1 formed by aluminum die casting or the like is provided with a cylindrical hole 3, and the cylindrical portion of the hole 3 and the tool 5 are the same as those in the first embodiment, and the description thereof is omitted. To do.
【００２２】前記孔３の円筒の底部には図３で示すよう
に、内径Ａ1 の中空孔が設けられ深さＴ2 を有する凹溝
１ｈが、図３に示すように螺旋状に配設されて凸部１ｇ
の上面と凹溝１ｈの上面はある程度の傾斜をもった面で
つながれた形状である。As shown in FIG. 3, a hollow hole having an inner diameter A 1 is provided at the bottom of the cylinder of the hole 3, and a concave groove 1h having a depth T 2 is spirally arranged as shown in FIG. Convex part 1g
The upper surface of the concave groove 1h and the upper surface of the concave groove 1h are connected by a surface having a certain degree of inclination.
【００２３】孔３の円筒底部の切削過程において、凸部
１ｇは工具５に固定されたバイト６の刃先面６ｂによっ
て、螺旋状の凹溝１ｈを残して断続的な切り屑として排
出されるが、回転するバイト６の刃先面６ｂには図３の
Ｋ−Ｋに示すように、断続する凸部１ｇ面に連続して当
接することで該刃先面６ｂは間欠衝撃を受けない円筒底
部の凹溝構造である。In the process of cutting the cylindrical bottom portion of the hole 3, the convex portion 1g is discharged as intermittent chips by the cutting edge surface 6b of the cutting tool 6 fixed to the tool 5, leaving the spiral concave groove 1h. As shown by KK in FIG. 3, the blade edge surface 6b of the rotating cutting tool 6 is continuously in contact with the intermittent convex surface 1g, so that the blade edge surface 6b is not recessed at the bottom of the cylinder so as not to receive an intermittent impact. It has a groove structure.
【００２４】本発明に係る第３実施例を図１，４によっ
て説明する。図４は本発明に係る第３実施例の孔部底面
の溝形状を示す上面図であり、第１実施例との相違点に
ついて図１，図４によって説明する。図１において、ア
ルミダイキャスト等によって成形する被切削材１には円
筒状の孔３が設けられており、該孔３の円筒部分および
工具５については第１実施例と同様であり説明を省略す
る。A third embodiment according to the present invention will be described with reference to FIGS. FIG. 4 is a top view showing the groove shape of the bottom surface of the hole portion of the third embodiment according to the present invention, and the differences from the first embodiment will be described with reference to FIGS. In FIG. 1, a material to be cut 1 formed by aluminum die casting or the like is provided with a cylindrical hole 3, and the cylindrical portion of the hole 3 and the tool 5 are the same as those in the first embodiment, and the description thereof is omitted. To do.
【００２５】前記孔３の円筒の底部には図４で示すよう
に、内径Ａ2 の中空孔が設けられ深さＴ2 を有する半円
状の窪み１ｌ，１ｍ等が、図４に示すように円筒底部の
内外周に配設され、底面１ｋと半円窪み１ｌ，１ｍの上
面はある程度の傾斜をもった面でつながれた形状であ
る。As shown in FIG. 4, a hollow hole having an inner diameter A 2 is provided at the bottom of the cylinder of the hole 3, and semi-circular depressions 11 and 1 m having a depth T 2 are formed as shown in FIG. The bottom surface 1k and the upper surfaces of the semi-circular depressions 1l and 1m, which are arranged on the inner and outer circumferences of the cylindrical bottom portion, are connected by a surface having a certain degree of inclination.
【００２６】孔３の円筒底部の切削過程において、底面
１ｋは工具５に固定されたバイト６の刃先面６ｂによっ
て、切削され、切り屑が刃面６ｅで抵抗を受けながら上
方に押し上げられて切り屑の三分の二程度の亀裂が入
り、半円窪み１ｌ，１ｍで面幅の狭くなる部分で切断さ
れ断続的な切り屑として、回転する工具５によって被切
削材１の上部に排出され刃先面６ｂは間欠衝撃を受けな
い円筒底部の半円窪み構造である。In the process of cutting the cylindrical bottom portion of the hole 3, the bottom surface 1k is cut by the cutting edge surface 6b of the cutting tool 6 fixed to the tool 5, and the chips are pushed upward while receiving resistance at the cutting surface 6e. Approximately two-thirds of the chips are cracked and are cut at the part where the face width is narrowed by the semi-circular depressions 1l, 1m, and are intermittent chips that are discharged to the upper part of the work material 1 by the rotating tool 5 and the cutting edge. The surface 6b has a semicircular hollow structure at the bottom of the cylinder that is not subject to intermittent impact.
【００２７】本発明に係る第４実施例を図１，６によっ
て説明する。図１は前出、図６は本発明の孔部の溝形状
を示す斜視図であり、実施例１との相違点について図６
によって説明する。図６において、アルミダイキャスト
等によって成形する被切削材１には円筒状の孔３が設け
られており、該孔３の内周部に深さＴ1 を有する半円溝
１ｒが軸方向に等間隔に複数個配設されており、中空孔
が設けられた底部には深さＴ3 を有する半円溝１ｓが放
射状に配設された形状の製品素材である。上記の溝形状
以外は第１実施例と同様であり説明を省略する。A fourth embodiment according to the present invention will be described with reference to FIGS. 6 is a perspective view showing the groove shape of the hole portion of the present invention, and FIG. 6 shows the difference from the first embodiment.
It will be explained by. In FIG. 6, a material to be cut 1 formed by aluminum die casting or the like is provided with a cylindrical hole 3, and a semicircular groove 1r having a depth T 1 is axially formed in the inner peripheral portion of the hole 3. It is a product material in which a plurality of semicircular grooves 1s having a depth T 3 are radially arranged at a bottom portion provided with hollow holes and arranged at equal intervals. Other than the groove shape described above, it is the same as that of the first embodiment, and the description thereof is omitted.
【００２８】本発明に係る第５実施例を図３，図７によ
って説明する。図３は前出、図７は本発明の孔部の溝形
状を示す斜視図であり、第２実施例との相違点について
図７によって説明する。図７において、アルミダイキャ
スト等によって成形する被切削材１には円筒状の孔３が
設けられており、該孔３の内周部に深さＴ1 を有する半
円溝１ｒが軸方向に等間隔に複数個配設されており、中
空孔が設けられた底部には深さＴ2 を有する半円溝１ｗ
が螺旋状に配設された形状の製品素材である。上記の溝
形状以外は第２実施例と同様であり説明を省略する。前
記の実施例において、孔３は円筒で盲状になっている
が、突き通しの穴となっていても同様の作用効果が得ら
れる。A fifth embodiment according to the present invention will be described with reference to FIGS. FIG. 3 is the above-mentioned, FIG. 7 is a perspective view showing the groove shape of the hole of the present invention, and the difference from the second embodiment will be described with reference to FIG. In FIG. 7, a material to be cut 1 formed by aluminum die casting or the like is provided with a cylindrical hole 3, and a semicircular groove 1r having a depth T 1 is axially formed in the inner peripheral portion of the hole 3. A plurality of semi-circular grooves 1w having a depth T 2 are provided at the bottom of which a plurality of holes are provided at equal intervals.
Is a product material having a spiral arrangement. Except for the above groove shape, it is the same as the second embodiment, and the description thereof is omitted. In the above-described embodiment, the hole 3 is cylindrical and blind, but the same effect can be obtained even if the hole 3 is a through hole.
【００２９】[0029]
【発明の効果】この発明は、以上のように製品素材を成
形する過程において、製品素材の円筒状孔部に複数の溝
または窪みを設けることによって、円筒状孔部をボーリ
ング切削加工する過程で発生する切り屑は断続的に生成
されて、被切削部材や工具にからむ現象が除去されるこ
とで、工具（バイト刃先）の寿命が大幅（約５倍）に延
長され、工具保守質の低減を図るとともに、切削面に工
具欠損および切り屑による傷の痕跡減少で加工寸度と品
質の向上を図る。また、切り屑除去作業が削減されて加
工作業の安全確保と加工時間削減を可能とすることで、
コストダウンおよび作業条件・効率の向上、品質向上と
優れた効果をあげる。As described above, according to the present invention, in the process of forming a product material as described above, by providing a plurality of grooves or depressions in the cylindrical hole part of the product material, the cylindrical hole part is boring cut. The generated chips are intermittently generated to eliminate the phenomenon of being entangled in the member to be cut and the tool, which significantly extends the life of the tool (bite cutting edge) (about 5 times) and reduces tool maintenance quality. At the same time, the cutting dimension and quality are improved by reducing the traces of tool defects and scratches caused by chips on the cutting surface. In addition, by reducing the chip removal work and ensuring the safety of processing work and reducing processing time,
Cost reduction, improvement of working conditions and efficiency, quality improvement and excellent effect.
【図１】本発明に係る第１実施例の孔部の溝形状と工具
を示す斜視図。FIG. 1 is a perspective view showing a groove shape of a hole and a tool according to a first embodiment of the present invention.
【図２】本発明に係る第１実施例の孔部底面の溝形状を
示す上面図。FIG. 2 is a top view showing the groove shape on the bottom surface of the hole of the first embodiment according to the invention.
【図３】本発明に係る第２実施例の孔部底面の溝形状を
示す上面図。FIG. 3 is a top view showing the groove shape on the bottom surface of the hole of the second embodiment according to the present invention.
【図４】本発明に係る第３実施例の孔部底面の溝形状を
示す上面図。FIG. 4 is a top view showing the groove shape on the bottom surface of the hole of the third embodiment according to the present invention.
【図５】本発明に係る切削工程を示す斜視図。FIG. 5 is a perspective view showing a cutting process according to the present invention.
【図６】本発明に係る第４実施例の孔部の溝形状を示す
斜視図。FIG. 6 is a perspective view showing the groove shape of the hole of the fourth embodiment according to the present invention.
【図７】本発明に係る第５実施例の孔部の溝形状を示す
斜視図。FIG. 7 is a perspective view showing a groove shape of a hole portion according to a fifth embodiment of the present invention.
【図８】従来例に係る切削加工前の被削材に加工する方
法を説明する縦断面図。FIG. 8 is a vertical cross-sectional view illustrating a method for processing a work material before cutting according to a conventional example.
【図９】従来例の図８の側面図。9 is a side view of FIG. 8 showing a conventional example.
１…被切削材、１ｂ，１ｄ，１ｈ…凹溝、１ｒ，１ｓ，
１ｗ…半円溝、５…工具、５ａ，５ｂ…接面、５ｃ…取
り付け孔、６…バイト、６ａ…刃先角、６ｂ…刃先面、
６ｃ，６ｄ…固着面、Ｔ3 ，Ｔ4 …切削代、Ｔ2 …深
さ、Ｔ1 …深さ、１ｌ，１ｍ…窪み。1 ... Material to be cut, 1b, 1d, 1h ... Grooves 1r, 1s,
1w ... Half-circle groove, 5 ... Tool, 5a, 5b ... Contact surface, 5c ... Mounting hole, 6 ... Bit, 6a ... Blade angle, 6b ... Blade surface,
6c, 6d ... fixing surface, T 3, T 4 ... cutting allowance, T 2 ... depth, T 1 ... depth, 1l, 1m ... recess.
フロントページの続き (72)発明者 中村 彰吾 名古屋市中村区岩塚町字高道１番地 三菱 重工業株式会社名古屋機器製作所内 (72)発明者 山本 勲 名古屋市中村区岩塚町字高道１番地 三菱 重工業株式会社名古屋機器製作所内Front page continued (72) Inventor Shogo Nakamura No. 1 Takamichi, Iwazuka-cho, Nakamura-ku, Nagoya City Mitsubishi Heavy Industries, Ltd. Nagoya Machinery Works (72) Inventor Isao Yamamoto No. 1 Takamichi, Iwazuka-cho, Nakamura-ku, Nagoya Mitsubishi Heavy Industries Inside Nagoya Machinery Works Co., Ltd.
Claims (5)
製品の素材成形段階において、円筒内周部に切削代（Ｔ
3 ）の二分の一程度の深さ（Ｔ1 ）を有する凹溝（１
ｂ）を軸方向に等間隔に複数個設け、また中空を有する
底部にも同様に切削代（Ｔ4 ）の二分の一程度の深さ
（Ｔ2 ）を有する凹溝（１ｄ）を放射状に複数個設け
て、該凹溝の断面形状は上面と下面を僅かな傾斜をもっ
た側面で形成した素材をもって、断続的な切り屑のボー
リング加工を可能としたことを特徴とする製品素材の形
状。1. A machining allowance (T) is formed on the inner peripheral portion of a cylinder in the step of forming a material into the shape of a hole which needs to be machined into a cylindrical shape.
The groove (1) having a depth (T 1 ) of about one half of ( 3 )
b) A plurality of grooves are provided at equal intervals in the axial direction, and concave grooves (1d) having a depth (T 2 ) of about half of the cutting allowance (T 4 ) are also radially formed in the hollow bottom portion. The shape of the product material is characterized in that a plurality of grooves are provided and the cross-sectional shape of the concave groove is made of a material in which the upper surface and the lower surface are formed by the side surfaces with a slight inclination, and intermittent chip boring is possible. .
に切削代の二分の一程度の深さを有する凹溝（１ｈ）を
螺旋状に複数個設けたことを特徴とする製品素材の形
状。2. The shape of a product material according to claim 1, wherein a plurality of concave grooves (1h) having a depth of about ½ of a cutting allowance are spirally provided in a bottom portion having a hollow hole. .
に切削代の二分の一程度の深さを有する半円状の窪み
（１ｌ）（１ｍ）を複数個設けたことを特徴とする製品
素材の形状。3. The product according to claim 1, wherein a plurality of semicircular depressions (1l) (1m) having a depth of about ½ of a cutting allowance are provided in the bottom portion having a hollow hole. The shape of the material.
び中空孔を有する底部に設けられた凹溝（１ｂ）（１
ｄ）（１ｈ）の断面形状を、半円状の溝（１ｒ）（１
ｓ）（１ｗ）で形成したことを特徴とする、製品素材の
形状。4. The groove (1b) (1) according to claim 1, wherein the groove (1b) (1) is provided in the cylindrical inner peripheral portion and the bottom portion having a hollow hole.
d) The cross-sectional shape of (1h) is changed to a semicircular groove (1r) (1
s) Shape of product material characterized by being formed by (1w).
（１ｂ）（１ｒ）または窪みを予め形成する成形加工工
程と、同素材の円筒状孔部をボーリング加工する際、同
溝又は窪みにより切削屑（１ａ）（１ｂ）を断続的に生
成する切削加工工程とからなることを特徴とする製品素
材の加工方法。5. A molding process for forming a plurality of grooves (1b) (1r) or depressions in a cylindrical hole (3) of a product material in advance, and a boring process for the cylindrical hole of the same material. A method of processing a product material, comprising a cutting step of intermittently generating cutting chips (1a) (1b) by grooves or depressions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16309295A JP3739834B2 (en) | 1995-06-07 | 1995-06-07 | Product material shape and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16309295A JP3739834B2 (en) | 1995-06-07 | 1995-06-07 | Product material shape and processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08336709A true JPH08336709A (en) | 1996-12-24 |
| JP3739834B2 JP3739834B2 (en) | 2006-01-25 |
Family
ID=15767036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16309295A Expired - Lifetime JP3739834B2 (en) | 1995-06-07 | 1995-06-07 | Product material shape and processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3739834B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447567A (en) * | 2013-08-09 | 2013-12-18 | 贵州风雷航空军械有限责任公司 | Method for processing axial holes of thin-wall cone |
| CN103769643A (en) * | 2013-12-20 | 2014-05-07 | 柳州正菱集团有限公司 | Method for machining casting of automobile brake adjusting arm through threaded inner hole drilling |
| CN110560706A (en) * | 2019-07-27 | 2019-12-13 | 黄明珠 | Inner cambered surface grooving device for shaft sleeve workpiece |
| CN111390734A (en) * | 2020-04-27 | 2020-07-10 | 鲁东大学 | Grinding device for processing inner hole axial chute |
-
1995
- 1995-06-07 JP JP16309295A patent/JP3739834B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447567A (en) * | 2013-08-09 | 2013-12-18 | 贵州风雷航空军械有限责任公司 | Method for processing axial holes of thin-wall cone |
| CN103769643A (en) * | 2013-12-20 | 2014-05-07 | 柳州正菱集团有限公司 | Method for machining casting of automobile brake adjusting arm through threaded inner hole drilling |
| CN110560706A (en) * | 2019-07-27 | 2019-12-13 | 黄明珠 | Inner cambered surface grooving device for shaft sleeve workpiece |
| CN110560706B (en) * | 2019-07-27 | 2020-06-16 | 常熟市万顺轴承有限公司 | Inner cambered surface grooving device for shaft sleeve workpiece |
| CN111390734A (en) * | 2020-04-27 | 2020-07-10 | 鲁东大学 | Grinding device for processing inner hole axial chute |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3739834B2 (en) | 2006-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2526499C (en) | Core cutter | |
| US8186251B2 (en) | Device for machining rotationally symmetrical surfaces of a workpiece | |
| JPH06198511A (en) | Burr remover with cutting tool | |
| JP2018134729A (en) | Processing device of cylinder wall of internal combustion engine | |
| US20100129169A1 (en) | Corner Portion Working Tool | |
| JP2002292515A (en) | End mill for cutting contour line | |
| JPH08336709A (en) | Product material form and machining method | |
| JPH0852616A (en) | Stepped reamer | |
| JPH0565287B2 (en) | ||
| JPH09117914A (en) | Blade of drill having groove for discharging chip | |
| JP3474549B2 (en) | Groove machining method by end mill | |
| JP2002292514A (en) | End mill of small diameter for cutting contour line | |
| CN110695374A (en) | Groove cutting machining method | |
| JP5224773B2 (en) | Commutator manufacturing method and manufacturing apparatus | |
| JP6311201B2 (en) | Method for manufacturing sintered part having through hole and sintered part | |
| JP2008296331A (en) | Machining device | |
| JPH08294809A (en) | Square hole working tool | |
| JPH1133815A (en) | Thrust machining tool | |
| JP4421979B2 (en) | Boring and grooving methods | |
| JP3821108B2 (en) | Drill with chip breaker | |
| JP4815842B2 (en) | Face milling and processing method | |
| JP4756609B2 (en) | Rotary cutting tool | |
| JP2003025130A (en) | Large-diameter deep groove machining device and method | |
| JP2024502539A (en) | Cutting insert for recess machining, cutting insert kit with two such cutting inserts, cutting insert holder for such cutting inserts and method for producing recesses | |
| JP2021115690A (en) | Boring tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040521 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040928 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20041129 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20050524 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050725 |
|
| A911 | Transfer of reconsideration by examiner before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20050914 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20051021 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20051104 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091111 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101111 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101111 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111111 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111111 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121111 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121111 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131111 Year of fee payment: 8 |
|
| EXPY | Cancellation because of completion of term |