JPH026032A - Method for forming annular groove - Google Patents
Method for forming annular grooveInfo
- Publication number
- JPH026032A JPH026032A JP15652588A JP15652588A JPH026032A JP H026032 A JPH026032 A JP H026032A JP 15652588 A JP15652588 A JP 15652588A JP 15652588 A JP15652588 A JP 15652588A JP H026032 A JPH026032 A JP H026032A
- Authority
- JP
- Japan
- Prior art keywords
- plate material
- annular groove
- hole
- volume
- concentrically
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 18
- 239000000463 material Substances 0.000 claims abstract description 49
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010273 cold forging Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Landscapes
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、塑性加工により板材に環状溝を形成するため
の環状溝の成形方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for forming an annular groove in a plate material by plastic working.
（従来の技術〕
第４図は、板材１１の一面に、例えば、シール部材を収
容するための環状溝１３が形成され、板材１１の他面に
環状突起１５が形成される成形品を示している。(Prior Art) FIG. 4 shows a molded product in which, for example, an annular groove 13 for accommodating a sealing member is formed on one side of a plate 11, and an annular projection 15 is formed on the other side of the plate 11. There is.
この成形品は、第１０図に示すように、例えば、ファイ
ンブランキングプレスにより、板材１６にパイロット孔
１７．中央孔１９が形成された後、所定形状の板材１１
に打ち抜かれ、この後、冷間鍛造プレスによる後方押し
出し加工により、第１１図に示すように、環状突起１５
が形成され、この後、旋盤により環状溝１３が切削され
製造される。As shown in FIG. 10, this molded product is manufactured by, for example, using a fine blanking press to form pilot holes 17 in the plate material 16. After the central hole 19 is formed, the plate material 11 of a predetermined shape is
After that, by backward extrusion processing using a cold forging press, as shown in FIG. 11, an annular projection 15 is formed.
is formed, and then the annular groove 13 is cut and manufactured using a lathe.
しかしながら、このような従来の製造方法では、各工程
が別の設備による加工となるため、生産効率が悪く、コ
ストが増大するという問題がある。However, in such conventional manufacturing methods, each process is performed using separate equipment, resulting in problems such as poor production efficiency and increased costs.
そこで、環状溝１３および環状突起１５をプレス成形に
よる塑性加工のみにより形成することが考えられるが、
この場合には、環状溝１３および環状突起１５の寸法精
度が低下するとともに、板材１１の平面度が低下すると
いう問題がある。Therefore, it is conceivable to form the annular groove 13 and the annular protrusion 15 only by plastic working by press forming.
In this case, there is a problem that the dimensional accuracy of the annular groove 13 and the annular protrusion 15 decreases, and the flatness of the plate material 11 decreases.
本発明は、上記のような問題を解決したもので、板材に
環状溝を高い精度で形成することができるとともに、高
い平面度を有する成形品を得ることのできる板材の成形
方法を提供することを目的とする。The present invention solves the above-mentioned problems, and provides a method for molding a plate material that can form an annular groove in a plate material with high precision and produce a molded product with high flatness. With the goal.
本発明にかかわる環状溝の成形方法は、厚み方向に貫通
孔の形成される板材の一面に、前記貫通孔と同心状に環
状溝を形成する環状溝の成形方法において、前記板材の
一面に、前記貫通孔と同心状に、前記環状溝の外側寸法
と同一の内側寸法を有する一側凹部を塑性加工するとと
もに、この−側口部の体積を板材の他面側に移動するこ
とにより、板材の他面に、前記貫通孔と同心状に、他側
凸部を塑性加工し、この後、前記他側凸部に、前記貫通
孔と同心状に他側凹部を塑性加工するとともに、この他
側凹部の体積を板材の一面側の貫通孔の周縁部に塑性加
工により移動し、前記環状溝の内側寸法と同一の外側寸
法を有する一側凸部を形成することにより、前記環状溝
を形成するものである。A method for forming an annular groove according to the present invention is a method for forming an annular groove in which an annular groove is formed concentrically with the through hole on one surface of a plate material in which a through hole is formed in the thickness direction, the method includes: By plastically working a concave portion on one side concentrically with the through hole and having the same inner dimension as the outer dimension of the annular groove, and moving the volume of this negative side opening to the other side of the plate material, On the other side, a convex portion on the other side is plastically worked concentrically with the through hole, and then a concave portion on the other side is plastically worked on the convex portion on the other side concentrically with the through hole; The annular groove is formed by moving the volume of the side recess to the peripheral edge of the through hole on one side of the plate material by plastic working to form a one side convex portion having the same outer dimension as the inner dimension of the annular groove. It is something to do.
〔作 用］
本発明の環状溝の成形方法では、板材の一面に、貫通孔
と同心状に、環状溝の外側寸法と同一の内側寸法を有す
る一側凹部が塑性加工され、同時に、この−側口部の体
積が板材の他面側に移動され、板材の他面に、貫通孔と
同心状に、他側凸部が塑性加工され、この後、他側凸部
に、貫通孔と同心状に他側凹部が塑性加工され、同時に
この他側凹部の体積が板材の一面側の貫通孔の周縁部に
塑性加工により移動され、環状溝の内側寸法と同一の外
′測寸法を有する一側凸部が形成され、環状溝が形成さ
れる。[Function] In the annular groove forming method of the present invention, a concave portion on one side having the same inner dimension as the outer dimension of the annular groove is plastically worked on one surface of the plate material concentrically with the through hole, and at the same time, this - The volume of the side opening is moved to the other side of the plate material, and a convex part on the other side is plastic-processed on the other side of the plate concentrically with the through hole. At the same time, the volume of the other side recess is transferred to the periphery of the through hole on one side of the plate material by plastic working, and a part having the same outer dimension as the inner dimension of the annular groove is formed. A side protrusion is formed and an annular groove is formed.
以下、本発明方法の詳細を図面を用いて説明する。 Hereinafter, details of the method of the present invention will be explained using the drawings.
第１図は、本発明の板材の成形方法により製造された成
形品の一側を示すもので、この成形品は、金属製の板材
３１の二面に、例えば、０−リング等のシール部材を収
容するための環状溝３３が形成され、この板材３１の他
面の環状溝３３に対向する部分に、環状突起３５が形成
されている。FIG. 1 shows one side of a molded product manufactured by the method of molding a plate material of the present invention, and this molded product has a sealing member such as an O-ring on two sides of a metal plate material 31. An annular groove 33 is formed to accommodate the annular groove 33, and an annular protrusion 35 is formed on the other surface of the plate member 31 in a portion facing the annular groove 33.
この成形品は、本発明の板材の成形方法により以下述べ
るようにして製造される。This molded article is manufactured by the method for molding a plate material of the present invention as described below.
すなわち、先ず、第２図に示すような板材３１の厚み方
向に、プレス加工により貫通孔３６が形成される。That is, first, a through hole 36 is formed in the thickness direction of the plate material 31 as shown in FIG. 2 by press working.
この後、第３図に示すように、環状溝３３の外径寸法Ａ
とほぼ同一の内径寸法を有する一側凹部３７が、貫通孔
３６と同心状にプレス加工により塑性加工され、これと
同時に、この−側口部３７の体積が、貫通孔３６の内周
部および板材３１の他面側に移動され、これにより、貫
通孔３６の内周部に、二点鎖線で示すテーバ状の体積吸
収部３８が形成され、一方、板材３１の他面に、貫通孔
３−６と同心状に他側凸部３９が形成される。After this, as shown in FIG. 3, the outer diameter dimension A of the annular groove 33 is
A one-side recessed portion 37 having an inner diameter dimension that is approximately the same as that of the through-hole 36 is plastic-formed by press working concentrically with the through-hole 36 , and at the same time, the volume of this −-side opening 37 is equal to that of the inner circumference of the through-hole 36 . The plate material 31 is moved to the other surface side, thereby forming a tapered volume absorbing portion 38 indicated by a two-dot chain line on the inner circumference of the through hole 36. On the other hand, the through hole 3 The other side protrusion 39 is formed concentrically with -6.
なお、ここで、体積吸収部３８の体積に他側凸部３９の
体積を加えた体積は、−側口部３７の体積と同一の体積
となる。Note that here, the volume obtained by adding the volume of the other side convex part 39 to the volume of the volume absorbing part 38 is the same volume as the volume of the negative side opening part 37 .
この後、第１図に示したように、板材３１の他側凸部３
９に環状溝３３の内径寸法Ｂより多少率さい内径寸法を
有する他側凹部４１が、貫通孔３６と同心状にプレス加
工により塑性加工され、これと同時に、この他側凹部４
１の体積が板材３１の一面側の貫通孔３６の周縁部に塑
性加工により移動され、環状溝３３の内径寸法Ｂと同一
の外径寸法を有する一側凸部４３が形成され、これによ
り環状溝３３が形成される。After this, as shown in FIG.
9, the other side recess 41 having an inner diameter slightly larger than the inner diameter B of the annular groove 33 is plastically worked by press working concentrically with the through hole 36, and at the same time, the other side recess 41 is formed concentrically with the through hole 36.
1 is moved to the peripheral edge of the through hole 36 on one side of the plate material 31 by plastic working, and a convex portion 43 on one side having the same outer diameter as the inner diameter B of the annular groove 33 is formed. A groove 33 is formed.
しかして、この実施例の板材の成形方法では、板材３１
の一面に、貫通孔３６と同心状に、環状溝３３の外径寸
法と同一の内径寸法を有する一側凹部３７を塑性加工す
るとともに、この−例四部３７の体積を板材３１の他面
側に移動することにより、板材３１の他面に、貫通孔３
６と同心状に、他側凸部３９を塑性加工し、この後、他
側凸部３９に、貫通孔３６と同心状に他側凹部４１を塑
性加工するとともに、この他側凹部４１の体積を板材３
１の一面側の貫通孔３６の周縁部に塑性加工により移動
し、環状溝３３の内径寸法と同一の外径寸法を有する一
側凸部４３を形成することにより、環状溝３３を形成す
るようにしたので、従来より大幅に低い加工圧力により
成形品を製造することが可能となる。Therefore, in the plate forming method of this embodiment, the plate 31
A concave portion 37 on one side having the same inner diameter as the outer diameter of the annular groove 33 is plastically worked on one side concentrically with the through hole 36, and the volume of the fourth section 37 is reduced to the other side of the plate material 31. By moving the through hole 3 to the other surface of the plate material 31,
6, the other side convex part 39 is plastically worked concentrically with the through hole 36, and then the other side concave part 41 is plastically worked on the other side convex part 39 concentrically with the through hole 36, and the volume of this other side concave part 41 is The plate material 3
The annular groove 33 is formed by moving the peripheral edge of the through hole 36 on one side of the annular groove 33 by plastic working to form a convex portion 43 on one side having the same outer diameter as the inner diameter of the annular groove 33. This makes it possible to manufacture molded products with significantly lower processing pressure than in the past.
そして、環状溝３３および環状突起３５の形成による、
板材３１の他の部分への体積的な影否を非常に小さくす
ることができるため、板材３１に環状溝３３および環状
突起３５を高い精度で形成することができ、また、高い
平面度を有する成形品を容易に得ることが可能となる。By forming the annular groove 33 and the annular protrusion 35,
Since the volumetric influence on other parts of the plate material 31 can be extremely small, the annular groove 33 and the annular protrusion 35 can be formed in the plate material 31 with high precision, and the plate material 31 has high flatness. It becomes possible to easily obtain molded products.
なお、この方法によれば、環状溝３３の深さに対する公
差を、例えば、０．０５ｍｍ以内にすることが容易に可
能となり、また、板材３１の平面度を例えば、０．０３
〜０．０５ｍｍの範囲にすることが可能となる。In addition, according to this method, it is possible to easily set the tolerance for the depth of the annular groove 33 within, for example, 0.05 mm, and also to set the flatness of the plate material 31 to, for example, 0.03 mm or less.
It becomes possible to make the range of 0.05 mm.
さらに、本発明方法では、環状溝３３を形成するための
切削加工等が不要となり、成形品をプレス加工のみで製
造することが可能となるため、例えば、順送り加工、ト
ランスファ加工等による連続成形が可能となり、成形品
の製造コストを従来より大幅に低減することが可能とな
る。Furthermore, in the method of the present invention, cutting work etc. for forming the annular groove 33 is not required, and the molded product can be manufactured only by press working, so that, for example, continuous molding by progressive processing, transfer processing, etc. is possible. This makes it possible to significantly reduce the manufacturing cost of molded products compared to conventional methods.
さらに、加工圧力が低いため、金型の寿命を向上するこ
とが可能となる。Furthermore, since the processing pressure is low, it is possible to improve the life of the mold.
なお、以上述べた実施例では、貫通孔３６の内周部に体
積吸収部３８を形成した例について述べたが、本発明は
かかる実施例に限定されるものではなく、体積吸収部３
８を形成することなく、例えば、他側凸部３９の体積を
増大するようにしても良いことは勿論である。In addition, in the embodiment described above, an example was described in which the volume absorption part 38 was formed in the inner peripheral part of the through hole 36, but the present invention is not limited to such an embodiment, and the volume absorption part 3
Of course, for example, the volume of the other side convex portion 39 may be increased without forming the second convex portion 39.
また、以上述べた実施例では、板材３１に円環形状の環
状溝３３を形成した例について述べたが、本発明はかか
る実施例に限定されるものではなく、楕円あるいは多角
形形状等の異形形状の環状溝の形成にも適用できること
は勿論である。Further, in the embodiment described above, an example was described in which an annular groove 33 was formed in the plate material 31, but the present invention is not limited to such an embodiment, and the present invention is not limited to such an embodiment. Of course, the present invention can also be applied to forming an annular groove.
［発明の効果］
以上のように本発明の板材の成形方法では、板材の一面
に、貫通孔と同心状に、環状溝の外側寸法と同一の内側
寸法を有する一側凹部を塑性加工するとともに、この−
側凹部の体積を板材の他面側に移動することにより、板
材の他面に、貫通孔と同心状に、他側凸部を塑性加工し
、この後、他側凸部に、貫通孔と同心状に他側凹部を塑
性加工するとともに、この他側凹部の体積を板材の一面
側の貫通孔の周縁部に塑性加工により移動し、環状溝の
内側寸法と同一の外側寸法を有する一側凸部を形成する
ことにより、環状溝を形成するようにしたので、板材に
環状溝を高い精度で形成することができるとともに、高
い平面度を有する成形品を得ることができるという利点
がある。[Effects of the Invention] As described above, in the plate forming method of the present invention, a concave portion on one side having the same inner dimension as the outer dimension of the annular groove is formed concentrically with the through hole on one surface of the plate, and , this −
By moving the volume of the side recess to the other side of the plate material, the other side convex part is plastically worked on the other side of the plate material concentrically with the through hole, and after this, the through hole and the other side convex part are formed on the other side of the plate material. The concave portion on the other side is plastically worked concentrically, and the volume of the recessed portion on the other side is moved by plastic working to the peripheral edge of the through hole on one side of the plate material, and the one side having the same outside dimension as the inside dimension of the annular groove is moved by plastic working. Since the annular groove is formed by forming the convex portion, there is an advantage that the annular groove can be formed in the plate material with high precision, and a molded product having high flatness can be obtained.
第１図は本発明の板材の成形方法により製造された成形
品の一側を示す縦断面図である。
第２図は板材を示す縦断面図である。
第３図は板材に一側凹部および他側凸部を形成した状態
を示す縦断面図である。
第４図ないし第６図は従来の板材の成形方法を示す説明
図である。
〔主要な部分の符号の説明〕
３１・・・板材
３３・・・環状溝
３５・・・環状突起
３６・・・貫通孔
３７・・・−側凹部
３つ・・・他側凸部
４１・・・他側凹部
４３・・・−例凸部。
第
図
六
／１ノ
閃
３６１壜孔）
第
図
’３９（ａイ頂すｊ凸部）
第
図FIG. 1 is a longitudinal cross-sectional view showing one side of a molded product manufactured by the plate material molding method of the present invention. FIG. 2 is a longitudinal sectional view showing the plate material. FIG. 3 is a longitudinal sectional view showing a state in which a concave portion on one side and a convex portion on the other side are formed in a plate material. FIGS. 4 to 6 are explanatory diagrams showing a conventional method of forming a plate material. [Explanation of symbols of main parts] 31... Plate material 33... Annular groove 35... Annular protrusion 36... Through hole 37... Three negative side recesses... Other side protrusion 41. ...Other side concave portion 43...-Example convex portion. Figure 6/1 flash 361 bottle hole) Figure '39 (a top j convex part) Figure
Claims (1)
記貫通孔と同心状に環状溝を形成する環状溝の成形方法
において、前記板材の一面に、前記貫通孔と同心状に、
前記環状溝の外側寸法と同一の内側寸法を有する一側凹
部を塑性加工するとともに、この一側凹部の体積を板材
の他面側に移動することにより、板材の他面に、前記貫
通孔と同心状に、他側凸部を塑性加工し、この後、前記
他側凸部に、前記貫通孔と同心状に他側凹部を塑性加工
するとともに、この他側凹部の体積を板材の一面側の貫
通孔の周縁部に塑性加工により移動し、前記環状溝の内
側寸法と同一の外側寸法を有する一側凸部を形成するこ
とにより、前記環状溝を形成することを特徴とする環状
溝の成形方法。(1) In a method for forming an annular groove in which an annular groove is formed concentrically with the through hole on one surface of a plate material in which a through hole is formed in the thickness direction, the annular groove is formed on one surface of the plate material concentrically with the through hole.
By plastically working a recessed portion on one side having the same inner dimensions as the outer dimensions of the annular groove and moving the volume of the recessed portion on one side to the other side of the plate material, the through hole and the like are formed on the other side of the plate material. The convex portion on the other side is plastically worked concentrically, and then the concave portion on the other side is plastically worked on the convex portion on the other side concentrically with the through hole, and the volume of the concave portion on the other side is reduced to one side of the plate material. The annular groove is formed by moving the peripheral edge of the through hole by plastic working to form a convex portion on one side having the same outer dimension as the inner dimension of the annular groove. Molding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15652588A JPH026032A (en) | 1988-06-24 | 1988-06-24 | Method for forming annular groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15652588A JPH026032A (en) | 1988-06-24 | 1988-06-24 | Method for forming annular groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH026032A true JPH026032A (en) | 1990-01-10 |
Family
ID=15629696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15652588A Pending JPH026032A (en) | 1988-06-24 | 1988-06-24 | Method for forming annular groove |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH026032A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04258336A (en) * | 1991-02-06 | 1992-09-14 | Kaijirushi Hamono Kaihatsu Center:Kk | Method for working various kinds of raw materials by forging |
| US5296388A (en) * | 1990-07-13 | 1994-03-22 | Matsushita Electric Industrial Co., Ltd. | Fabrication method for semiconductor devices |
-
1988
- 1988-06-24 JP JP15652588A patent/JPH026032A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296388A (en) * | 1990-07-13 | 1994-03-22 | Matsushita Electric Industrial Co., Ltd. | Fabrication method for semiconductor devices |
| JPH04258336A (en) * | 1991-02-06 | 1992-09-14 | Kaijirushi Hamono Kaihatsu Center:Kk | Method for working various kinds of raw materials by forging |
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