JPS6350144B2 - - Google Patents
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- Publication number
- JPS6350144B2 JPS6350144B2 JP55168774A JP16877480A JPS6350144B2 JP S6350144 B2 JPS6350144 B2 JP S6350144B2 JP 55168774 A JP55168774 A JP 55168774A JP 16877480 A JP16877480 A JP 16877480A JP S6350144 B2 JPS6350144 B2 JP S6350144B2
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- JP
- Japan
- Prior art keywords
- cam
- grinding
- radius
- section
- grinding wheel
- 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
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- Grinding Of Cylindrical And Plane Surfaces (AREA)
Description
【発明の詳細な説明】
本発明は、例えば電気部品用フエライト円柱コ
アの製造法及び装置に適用して好適な円柱部品の
製造方法及び製造装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for manufacturing a cylindrical component suitable for application to, for example, a method and apparatus for manufacturing a ferrite cylindrical core for electrical parts.
従来、第１図に示すフエライトより成る電気部
品用フエライト円柱コアは、切削加工が不可能な
ので、ダイヤモンド等の研削具で加工製造されて
いる。しかし用途に応じて直径が１〜数mmと非常
に小さく、しかも寸法の公差が厳しいことに起因
して１個１個慎重に加工されている。その結果、
作業工数が増加し、作業性は著しく悪化する。従
つてかかる点を解消するため専用機械を使用する
ことが行なわれているが、その自動機は複雑な機
械より構成されているため、高価なものとなり、
かつ一般的加工に応用ができない問題がある。 Conventionally, the ferrite cylindrical core for electrical parts made of ferrite shown in FIG. 1 cannot be cut, so it has been processed and manufactured using a grinding tool such as a diamond. However, depending on the application, the diameter is extremely small, ranging from 1 to several millimeters, and due to the tight dimensional tolerances, each piece is carefully processed. the result,
The number of man-hours required increases, and work efficiency deteriorates significantly. Therefore, in order to solve this problem, a special machine is used, but since the automatic machine is composed of complicated machines, it is expensive.
Moreover, there is a problem that it cannot be applied to general processing.
本発明はかかる点に鑑み、直径が小さい適研削
円柱部品の自動連続加工を迅速に行なう製造方法
及び製造装置を提供することを主たる目的とす
る。 In view of the above, the main object of the present invention is to provide a manufacturing method and a manufacturing apparatus that rapidly perform automatic continuous processing of suitably ground cylindrical parts having small diameters.
以下本発明の一実施例について図面を参照しな
がら詳細に説明する。 An embodiment of the present invention will be described in detail below with reference to the drawings.
第２図は本発明製法に使用して好適なセンタレ
ス加工製造装置の一例を示す略線的正面図、第３
図は第２図中−線縦断面図である。１は円板
状ダイヤモンド等の砥石、２は、砥石１の回転駆
動部、３は円板カム、４は、円板カム３の回転駆
動部、５は加工される円柱部品素材、６は、素材
５をセンタレス加工するに際して支持する受板、
７は同じく素材５の供給、加工の際の位置決めス
トツパを夫々示す。素材５は材料案内筒８から連
続的に供給されてくる。そして加工される素材５
ａと、次に加工されるために待期している素材５
ｂとを分離し、砥石１の正面に位置決めし、所定
寸法に加工され完成した素材５ａを排出すると共
に次の素材５ｂを加工位置に送り込み、次の素材
５ｃとの分離をする各工程が全て円板カム３によ
つて行なわれ、人的作業の介入なしに自動的に所
定の加工が行なわれるように構成されている。 Figure 2 is a schematic front view showing an example of a centerless processing manufacturing apparatus suitable for use in the manufacturing method of the present invention;
The figure is a vertical sectional view taken along the line -- in FIG. 1 is a grindstone such as a disc-shaped diamond, 2 is a rotation drive part of the grindstone 1, 3 is a disc cam, 4 is a rotation drive part of the disc cam 3, 5 is a cylindrical part material to be processed, 6 is, A receiving plate that supports the material 5 during centerless processing,
Similarly, reference numeral 7 indicates a positioning stopper for supplying and processing the material 5, respectively. The material 5 is continuously supplied from a material guide tube 8. And the material to be processed 5
a and the material 5 waiting to be processed next
The process of separating the material 5a from the material 5b, positioning it in front of the grinding wheel 1, discharging the completed material 5a processed to a predetermined size, feeding the next material 5b to the processing position, and separating it from the next material 5c is all involved. This is performed by the disc cam 3, and is configured so that the predetermined processing is performed automatically without any human intervention.
次に製造工程につき説明するに、第４図Ａは円
板カム３の展開平面図である。先ず円柱部品素材
５が案内筒８から供給されており、案内筒８の遊
端側には一定速度で回転駆動された円板カム３が
砥石１と対向して配設されている。円板カム３は
素材の供給工程→研削工程→仕上工程→排出工程
の４工程の１週期を１回転により行なうように形
成されている。すなわち第２図において、Ａ区分
に属する供給工程では、連続的に供給されてくる
素材５のうち最初の１個５ａのみを円板カム３の
周面及び砥石１の周面に位置させる。この場合、
円板カム３の幅は素材５の長さに相当する寸法と
し、砥石１と円板カム３との間隔ｌは、カム３の
Ａ区分の中心軸Ｃと周端との間隔l1、砥石１の中
心軸とその周端との間隔l3、砥石１と円板カム３
との軸間間隔をl4とすれば、
ｌ＝l4−（l1＋l3）
とする（第２図及び第４図Ｂ参照）。つまり素材
５の直径に相当することになり、よつて供給工程
では素材の研削は行なわれない。 Next, to explain the manufacturing process, FIG. 4A is a developed plan view of the disc cam 3. First, a cylindrical component material 5 is supplied from a guide tube 8, and a disc cam 3 driven to rotate at a constant speed is disposed on the free end side of the guide tube 8, facing the grindstone 1. The disc cam 3 is formed so as to carry out four steps in one week, namely, a material supply process, a grinding process, a finishing process, and a discharge process in one rotation. That is, in FIG. 2, in the supply process belonging to category A, only the first piece 5a of the continuously supplied materials 5 is positioned on the circumferential surface of the disc cam 3 and the circumferential surface of the grindstone 1. in this case,
The width of the disc cam 3 is a dimension corresponding to the length of the material 5, and the distance l between the grinding wheel 1 and the disc cam 3 is the distance l 1 between the central axis C and the peripheral edge of section A of the cam 3, and the distance l between the grinding wheel 1 and the disc cam 3 is Distance l 3 between the central axis of 1 and its peripheral edge, grindstone 1 and disc cam 3
If the distance between the two axes is l4 , then l= l4- ( l1 + l3 ) (see Fig. 2 and Fig. 4B). In other words, it corresponds to the diameter of the material 5, and therefore, the material is not ground in the supply process.
次のＢ区分に属する研削工程では、砥石１によ
る研削に応じて円板カム３によつて徐々に素材５
を砥石１側へ移動させる。そして研削工程の初期
は、円板カム３の中心軸Ｃと周端との間隔l1と
し、終期は同じく間隔l2とする。よつて間隔l2は、
l2＝l4−（l3＋ｄ／２＋ｌ／２）
∴l2＝l1−（ｄ＋ｌ）／２
〔但しｄ：被加工品（素材）の中央径小部の直
径〕
の関係となる。よつて間隔l2は素材５の外径ｌと
加工される径小部（第１図参照）の直径ｄによつ
て決定される。 In the next grinding process belonging to category B, the disc cam 3 gradually grinds the material 5 as the grindstone 1 grinds.
Move to the grindstone 1 side. At the beginning of the grinding process, the distance between the central axis C and the peripheral end of the disc cam 3 is l1 , and at the end, the same distance is l2 . Therefore, the interval l 2 is: l 2 = l 4 - (l 3 + d/2 + l/2) ∴l 2 = l 1 - (d + l)/2 [where d: the small center diameter part of the workpiece (material) diameter]. The distance l 2 is therefore determined by the outer diameter l of the material 5 and the diameter d of the reduced diameter part (see FIG. 1) to be machined.
次のＣ区分に属する仕上工程では、素材５の径
小部の加工は僅かになされるだけであり、加工済
の素材５ａと次に加工される素材５ｂとの分離を
行なう。そのため仕上工程初期の円板カム３の幅
は第４図Ａに示す如く、素材５の長さに相当して
いるが、終期のカム３の幅は素材５の長さより長
い寸法に設定する。従つてカム３の回転に伴ない
次の素材５ｂ以下はカム３の側面に押圧され、か
つ受板６に規制されながら徐々に加工済素材５ａ
との間隔が拡げられることになる。尚、受板６の
上端は斜状に形成されており、素材５の加工に伴
ない素材の中心が徐々に受板６の斜端面に沿つて
移動するため、第２図及び第３図に示す如く、仕
上工程終了時には加工済素材５ａの中心と次の素
材５ｂ以下の中心がずれることに起因して、加工
済素材５ａはカム３の側面に押圧されることにな
る。 In the finishing process belonging to the next C category, the small diameter portion of the material 5 is only slightly processed, and the processed material 5a is separated from the material 5b to be processed next. Therefore, the width of the disc cam 3 at the beginning of the finishing process corresponds to the length of the material 5, as shown in FIG. 4A, but the width of the cam 3 at the final stage is set to be longer than the length of the material 5. Therefore, as the cam 3 rotates, the next material 5b and subsequent materials are pressed against the side surface of the cam 3, and are gradually reduced to the processed material 5a while being regulated by the receiving plate 6.
The distance between them will be widened. The upper end of the receiving plate 6 is formed obliquely, and as the material 5 is processed, the center of the material gradually moves along the slanted end surface of the receiving plate 6. As shown, at the end of the finishing process, the processed material 5a is pressed against the side surface of the cam 3 because the center of the processed material 5a and the center of the next material 5b and subsequent materials are shifted.
次のＤ区分に属する排出工程では、次の素材５
ｂ以下の位置を一時的に固定し、かつ加工済素材
５ａのみを外部へ排出させる。そのため円板カム
３に排出凹部３ｄを形成することにより、ストツ
パ７、受板６及び円板カム３で規制されていた加
工済素材５ａを排出凹部３ｄから落下させるよう
にする。尚、排出凹部３ｄの幅ｆは少なくとも素
材５の長さに相当する寸法を必要とする。その
間、次の素材５ｂ以下はカム３の鍔部３ｆにより
位置が一時的に固定化されている。この場合、鍔
部３ｆは、中心軸Ｃと周端との間隔をl5とし、間
隔l5は間隔l2より微小値大とする。つまり寸法
（l5−l2）は仕上代を意味する。排出工程の終期す
なわち供給工程の初期においては、鍔部３ｆによ
る次の素材５ｂの一時的固定は解除され、かつカ
ム３の中心軸Ｃと周端との間隔が再びl1に設定さ
れているため、次の素材５ｂは上述した如く再び
円板カム３の周面及び砥石１の周面に位置させる
ことができる。よつて以下研削の第２週期に至
る。 In the discharge process belonging to the next D category, the following material 5
The position below b is temporarily fixed, and only the processed material 5a is discharged to the outside. Therefore, by forming the discharge recess 3d in the disc cam 3, the processed material 5a, which has been regulated by the stopper 7, the receiving plate 6, and the disc cam 3, is allowed to fall from the discharge recess 3d. Note that the width f of the discharge recess 3d needs to have a dimension equivalent to at least the length of the material 5. During this time, the positions of the next material 5b and below are temporarily fixed by the flange 3f of the cam 3. In this case, the distance between the center axis C and the peripheral edge of the flange portion 3f is l5 , and the distance l5 is a minute value larger than the distance l2 . In other words, the dimension (l 5 −l 2 ) means the finishing allowance. At the end of the discharge process, that is, at the beginning of the supply process, the temporary fixation of the next material 5b by the flange 3f is released, and the distance between the central axis C and the peripheral end of the cam 3 is set to l 1 again. Therefore, the next material 5b can be placed on the circumferential surface of the disk cam 3 and the grindstone 1 again as described above. Therefore, the second week of grinding begins.
尚、上述の説明は一例を示したにすぎず、例え
ば円板カム３の一回転につき上記工程を２週期又
はそれ以上とすることができる。 Incidentally, the above explanation is merely an example, and for example, the above-mentioned process can be carried out for two weeks or more per rotation of the disc cam 3.
以上述べた如く本発明によれば、研削砥石と研
削砥石に対抗して配設された案内カムとにより常
に挾持されて研削される円柱部品の製造方法にお
いて、研削砥石の回転中心と、案内カムの回転中
心間隔l4がl4≧ｌ＋l1＋l3に設定した供給工程（但
し、ｌは素材の外径、l1はカムの半径、l3は研削
砥石の半径）と、上記中心間隔l4がl4＝ｌ＋l2＋l3
−研削代に設定した研削工程（但し、l2はカムの
半径、l2＞l1）と、上記中心間隔l4がl4＝l3＋l5＋
ｄ＋仕上げ研削代に設定した仕上げ研削工程（但
し、ｄは素材の仕上径、l5はカムの半径）と、仕
上げ研削工程の後において加工中の素材と次の素
材との分離を行なう手段により次の素材の供給停
止のまま加工済み素材を排出する工程とで構成し
たので、
従来のように、無心研削に際して必要な間欠送
りばねを利用して強制的に行なう必要がなく、素
材の無駄な損耗を未然に防止し得る効果を有す
る。また素材を間欠送りする無心研削方法に比べ
て、殊に素材が脆い材質のときは従来の方法では
食い込んで欠けてしまう欠点を有するが、本発明
はこのような欠点を解消し得る。更に直径が小さ
く寸法公差が厳しい素材加工に適合し、更に上記
センタレス研削の初期及び終期の寸法を簡単に設
定することができ、よつてこの種製法の全自動化
が容易となり、結局、加工部品の製造原価の大幅
な低減を図り得る。 As described above, according to the present invention, in a method for manufacturing a cylindrical part that is always held and ground by a grinding wheel and a guide cam disposed opposite to the grinding wheel, the center of rotation of the grinding wheel and the guide cam A feeding process in which the rotation center spacing l 4 is set to l 4 ≧ l + l 1 + l 3 (where l is the outer diameter of the material, l 1 is the radius of the cam, and l 3 is the radius of the grinding wheel) and the above center spacing l 4 is l 4 = l + l 2 + l 3
- The grinding process set as the grinding allowance (where l 2 is the radius of the cam, l 2 > l 1 ) and the above center distance l 4 are l 4 = l 3 + l 5 +
Through the finish grinding process set to d + finish grinding allowance (where d is the finished diameter of the material, and l5 is the radius of the cam), and by means of separating the material being processed from the next material after the finish grinding process. The process consists of discharging the processed material while the supply of the next material is stopped, so there is no need to use the intermittent feed springs required for free grinding, which is required in the conventional method, and there is no need to waste material. It has the effect of preventing wear and tear. Furthermore, compared to the non-centered grinding method in which the material is fed intermittently, the conventional method has the disadvantage that the material is likely to dig in and chip, especially when the material is brittle, but the present invention can eliminate this drawback. Furthermore, it is suitable for machining materials with small diameters and strict dimensional tolerances, and the initial and final dimensions of the centerless grinding described above can be easily set, making it easy to fully automate this type of manufacturing method, and ultimately improving the accuracy of processed parts. It is possible to significantly reduce manufacturing costs.
また本発明によれば、研削砥石に対抗して配設
された案内カムの周囲を供給部、研削部、仕上げ
研削部及び排出部とに分割し、供給部後端及び研
削部前端のカム半径はl1＝l4−ｌ−l3に設定し
（但し、ｌは素材の外径、l1はカムの半径、l3は研
削砥石の半径、l4は研削砥石と案内カムとの回転
中心間隔）、研削部の後端及び仕上げ研削部の前
端のカム半径はl2＝l4−l3−ｌ＋研削代に設定し
（但し、l2はカムの半径）、仕上げ研削部の後端及
び排出部の前端のカム半径はl5＝l4−l3−ｄ−仕
上げ研削代に設定し（但し、l5はカムの半径、ｄ
は素材の仕上げ径）、排出部には、加工中の素材
と次の素材との分離を行なうための鍔部及び鍔部
によつて分離された素材を排出する素材凹部を形
成したので、
従来のように、無心研削に際して必要な間欠送
りばねを利用して強制的に行なう必要がないの
で、素材の無駄な損耗を未然に防止し得る効果を
有する。殊に素材が脆い材質のときは従来の方法
は採用し得ない欠点を有するが、このような欠点
を解消し得るし、更に従来のこの種製造装置の如
き複雑な機構を有するものに較べて、格段に単純
な機構によつて構成することができ、よつて全自
動化製造装置を廉価に提供し得る。 Further, according to the present invention, the periphery of the guide cam disposed opposite the grinding wheel is divided into a supply section, a grinding section, a finishing grinding section, and a discharge section, and the cam radius at the rear end of the supply section and the front end of the grinding section is is set to l 1 = l 4 - l - l 3 (where l is the outer diameter of the material, l 1 is the radius of the cam, l 3 is the radius of the grinding wheel, and l 4 is the rotation between the grinding wheel and the guide cam. center distance), the cam radius at the rear end of the grinding section and the front end of the finish grinding section is set to l 2 = l 4 - l 3 - l + grinding allowance (where l 2 is the radius of the cam), and the cam radius at the rear end of the grinding section and the front end of the finish grinding section is set to The cam radius at the end and the front end of the discharge section is set to l 5 = l 4 - l 3 - d - finish grinding allowance (where l 5 is the radius of the cam, d
is the finished diameter of the material), and the discharge section has a flange for separating the material being processed from the next material, and a material recess for discharging the material separated by the flange. As described above, there is no need to use the intermittent feed springs required during zero-center grinding to forcefully perform the grinding, which has the effect of preventing unnecessary wear and tear on the material. In particular, when the material is a brittle material, conventional methods have drawbacks that cannot be adopted, but these drawbacks can be overcome, and furthermore, compared to conventional manufacturing equipment of this type that has a complicated mechanism. , it can be constructed with an extremely simple mechanism, and therefore a fully automated manufacturing device can be provided at a low cost.
第１図は円柱コアの一例を示す図、第２図は本
発明製造装置の一例を示す正面図、第３図は第２
図中−線に沿う縦断面図、第４図Ａは円板カ
ムの一例を示す展開平面図、第４図Ｂは同図Ａ中
Ｂ−Ｂ線矢視図である。
３……円板カム、５……円柱部品素材、Ａ……
供給工程、Ｂ……研削工程、Ｃ……仕上工程、Ｄ
……排出工程。
FIG. 1 is a diagram showing an example of a cylindrical core, FIG. 2 is a front view showing an example of the manufacturing apparatus of the present invention, and FIG.
FIG. 4A is a developed plan view showing an example of a disc cam, and FIG. 4B is a view taken along line B--B in FIG. 4A. 3...Disc cam, 5...Cylindrical part material, A...
Supply process, B...Grinding process, C...Finishing process, D
...Discharge process.
Claims (1)
内カムとにより常に挾持されて研削される円柱部
品の製造方法において、 研削砥石の回転中心と、案内カムの回転中心間
隔l4が l4≧ｌ＋l1＋l3 に設定した供給工程（但し、ｌは素材の外径、l1
はカムの半径、l3は研削砥石の半径）と、 上記中心間隔l4が l4＝ｌ＋l2＋l3−研削代 に設定した研削工程（但し、l2はカムの半径、l2
＞l1）と、 上記中心間隔l4が l4＝l3＋l5＋ｄ＋仕上げ研削代 に設定した仕上げ研削工程（但し、ｄは素材の仕
上径、l5はカムの半径）と、 仕上げ研削工程の後において加工中の素材と次
の素材との分離を行なう手段により次の素材の供
給停止のまま加工済み素材を排出する工程とで構
成したことを特徴とする円柱部品の製造方法。 ２ 研削砥石に対抗して配設された案内カムの周
囲を供給部、研削部、仕上げ研削部及び排出部と
に分割し、 供給部後端及び研削部前端のカム半径はl1＝l4
−ｌ−l3に設定し（但し、ｌは素材の外径、l1は
カムの半径、l3は研削砥石の半径、l4は研削砥石
と案内カムとの回転中心間隔）、 研削部の後端及び仕上げ研削部の前端のカム半
径はl2＝l4−l3−ｌ＋研削代に設定し（但し、l2は
カムの半径）、 仕上げ研削部の後端及び排出部の前端のカム半
径はl5＝l4−l3−ｄ−仕上げ研削代に設定し（但
し、l5はカムの半径、ｄは素材の仕上げ径）、 排出部には、加工中の素材と次の素材との分離
を行なうための鍔部及び鍔部によつて分離された
素材を排出する排出凹部を形成したことを特徴と
する円柱部品の製造装置。[Scope of Claims] 1. A method for manufacturing a cylindrical part that is constantly held and ground by a grinding wheel and a guide cam disposed opposite to the grinding wheel, comprising: a center of rotation of the grinding wheel and a center of rotation of the guide cam; A feeding process in which the interval l 4 is set to l 4 ≧ l + l 1 + l 3 (where l is the outer diameter of the material, l 1
is the radius of the cam, l 3 is the radius of the grinding wheel), and the grinding process in which the above center distance l 4 is set to l 4 = l + l 2 + l 3 - grinding allowance (where l 2 is the radius of the cam, l 2
> l 1 ), the finish grinding process in which the above center distance l 4 is set to l 4 = l 3 + l 5 + d + finish grinding allowance (where d is the finished diameter of the material, and l 5 is the radius of the cam), and the finish grinding A method for manufacturing a cylindrical part, comprising the step of discharging the processed material while the supply of the next material is stopped by means of separating the material being processed from the next material after the step. 2 The area around the guide cam placed opposite the grinding wheel is divided into a supply section, a grinding section, a finishing grinding section, and a discharge section, and the cam radius at the rear end of the supply section and the front end of the grinding section is l 1 = l 4
-l-l 3 (where l is the outer diameter of the material, l 1 is the radius of the cam, l 3 is the radius of the grinding wheel, and l 4 is the distance between the rotation centers of the grinding wheel and the guide cam), and the grinding part The cam radius at the rear end and the front end of the finish grinding section is set to l 2 = l 4 - l 3 - l + grinding allowance (where l 2 is the radius of the cam), and the rear end of the finish grinding section and the front end of the discharge section. The cam radius of is set to l 5 = l 4 - l 3 - d - finish grinding allowance (where l 5 is the radius of the cam and d is the finished diameter of the material). 1. An apparatus for manufacturing a cylindrical part, comprising: a flange for separating the material from the material; and a discharge recess for discharging the material separated by the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16877480A JPS5796757A (en) | 1980-11-29 | 1980-11-29 | Cylindrical parts manufacturing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16877480A JPS5796757A (en) | 1980-11-29 | 1980-11-29 | Cylindrical parts manufacturing method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5796757A JPS5796757A (en) | 1982-06-16 |
| JPS6350144B2 true JPS6350144B2 (en) | 1988-10-06 |
Family
ID=15874206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16877480A Granted JPS5796757A (en) | 1980-11-29 | 1980-11-29 | Cylindrical parts manufacturing method and device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5796757A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61209863A (en) * | 1985-03-13 | 1986-09-18 | Kobayashi Kogyo Kk | Method of grinding inside surface of cylindrical magnetic core |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5432894A (en) * | 1977-08-17 | 1979-03-10 | Nippei Sangyo Kk | Automatic work feeding device in centerless grinding machine |
-
1980
- 1980-11-29 JP JP16877480A patent/JPS5796757A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5796757A (en) | 1982-06-16 |
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