JPS5840990Y2 - Precision forging mold - Google Patents
Precision forging moldInfo
- Publication number
- JPS5840990Y2 JPS5840990Y2 JP14455378U JP14455378U JPS5840990Y2 JP S5840990 Y2 JPS5840990 Y2 JP S5840990Y2 JP 14455378 U JP14455378 U JP 14455378U JP 14455378 U JP14455378 U JP 14455378U JP S5840990 Y2 JPS5840990 Y2 JP S5840990Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- detance
- upper mold
- precision forging
- lower mold
- 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
Links
Landscapes
- Forging (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Description
【考案の詳細な説明】
この考案は寸法精度の高い鍛造品を加工するための精密
鍛造金型の改良に関する。[Detailed Description of the Invention] This invention relates to improvement of a precision forging die for processing forged products with high dimensional accuracy.
一般にこの種の金型では鍛造品の形状などにより鍛造中
に上型と下型が横力向にずれて鍛造品の寸法精度が悪く
なることがよくある。Generally, in this type of die, the upper and lower dies often shift in the direction of lateral force during forging due to the shape of the forged product, resulting in poor dimensional accuracy of the forged product.
このため従来では上型と下型に互に嵌合し合ういんろう
部分を設けて両金型が合致した際横力向へずれるのを防
止した第１図ａないしｄに示す金型を用いている。For this reason, in the past, the molds shown in Figures 1 a to d were used, in which the upper mold and the lower mold were provided with dowel parts that fit into each other to prevent the molds from shifting in the direction of lateral force when the two molds matched. ing.
しかしこのようないんろう部分を設けた金型では、横方
向への力が強く働く場合雌型側の段部を深くしなければ
ならず、それだけ金型が大型になると共に、稼動中にい
んろう部分が欠損すると修理不能で廃棄処分しなければ
ならず不経済である。However, in a mold equipped with such a dowel portion, if a strong lateral force is applied, the stepped portion on the female mold side must be made deeper, which increases the size of the mold and causes problems during operation. If the waxed part is damaged, it cannot be repaired and must be disposed of, which is uneconomical.
このような不具合を解消するものとして第１図ｅに示す
ガイドピン式や、第１図ｆに示すリング嵌め込み式の精
密鍛造金型も提唱されている。To solve this problem, a guide pin type precision forging mold shown in FIG. 1e and a ring fitting type precision forging mold shown in FIG. 1f have been proposed.
しかしこれらの金型は、使用している間にインプレッシ
ョン（形式）が摩耗してこれを再加工する場合、同時に
上下型の当り面も加工しなければ鍛造品の厚さ方向の精
度が得られず再加工が面倒である欠点があった。However, when the impression (form) of these dies wears out during use and is reworked, the accuracy in the thickness direction of the forged product cannot be obtained unless the contact surfaces of the upper and lower dies are also machined at the same time. However, there was a drawback that reprocessing was troublesome.
この考案はかかる欠点を除去する目的でなされたもので
、インプレッションを再加工した際、当り面側はシム調
整するだけで鍛造品の厚さ方向の精度が確保できるよう
にした精密鍛造金型を提供して、金型の再加工を容易に
したものである。This idea was made with the aim of eliminating such defects, and when the impression was reprocessed, a precision forging die was created that ensured accuracy in the thickness direction of the forged product by simply adjusting the shims on the contact surface. This makes it easier to rework the mold.
以下この考案を図示の一実施例について詳述する。This invention will be described in detail below with reference to an illustrated embodiment.
図において１は下型、２は上型で、両型１゜２の互に対
向する面にインプレッション１ ａ ｔ２ａが形成され
ている。In the figure, 1 is a lower mold, 2 is an upper mold, and impressions 1 a t 2 a are formed on mutually opposing surfaces of both molds 1° 2 .
各インプレッション１ ａ ＋２ａの周囲には夫々凹段
部１ｂ及び２ｂが形成されており、これら凹段部１ｂ、
２ｂのうち上型２に形成された凹段部２ｂに適宜厚さの
シム３を介して角枠状のディタンス４が嵌合されている
。Concave step portions 1b and 2b are formed around each impression 1 a +2a, respectively, and these concave step portions 1b,
A rectangular frame-shaped detance 4 is fitted into a recessed step 2b formed in the upper die 2 through a shim 3 having an appropriate thickness.
ディタンス４は内側に形成された角孔４ａが上記上型２
の凹段部２ｂと比較的密に嵌合するように、また外周部
は上型２の外周縁より太きく形成されて上型２の外周部
より張り出すように形成されていると共に、厚みも凹段
部２ｂの高さより太きく形成されていて、上型２と下型
１を合致させた際ディタンス４の下部が下型１の凹段部
１ｂに嵌合して、鍛造の際両型１，２が横力向へずれる
のを規制する作用をなしている。The rectangular hole 4a formed inside the detance 4 is connected to the upper mold 2.
The outer periphery is formed to be thicker than the outer periphery of the upper mold 2 so as to fit relatively tightly into the recessed step 2b of the upper mold 2, and the outer periphery is formed so as to protrude from the outer periphery of the upper mold 2. The height of the detance 4 is also larger than the height of the recessed step 2b, and when the upper mold 2 and the lower mold 1 are matched, the lower part of the detance 4 fits into the recessed step 1b of the lower mold 1, so that both sides are closed during forging. It functions to restrict the molds 1 and 2 from shifting in the direction of lateral force.
そして上記ディタンス４は上型２に挿通した複数本、例
えば４本のボルト５により着脱自在に取付けられている
と共に、各ボルト５の先端は上型２上部の角孔２ｃ内に
収容されたナツト５ａに螺挿されている。The detance 4 is detachably attached to the upper mold 2 by a plurality of bolts, for example, four bolts 5, and the tip of each bolt 5 is connected to a nut housed in a square hole 2c in the upper part of the upper mold 2. It is screwed into 5a.
この考案は以上詳述したようになるから、各型１．２Ｇ
こ設けたインプレッションｌａ、２ａの厚さ方向の精度
を出すには、上型２の凹段部２ｂ底面とディタンス４の
間ｌこ介在したシム３の厚さを調整するだけでよく、精
度調整が容易になると共に、インプレッション１ａ、２
ａの摩耗などによりこれらを再加工した場合でも、シム
３を調整するだけで鍛造品の厚さ方向の精度が容易に出
せるようになり、当り面の加工は例等必要としない。This idea is as detailed above, so each type has 1.2G
In order to achieve accuracy in the thickness direction of the impressions la and 2a provided, it is only necessary to adjust the thickness of the shim 3 interposed between the bottom surface of the recessed step 2b of the upper die 2 and the distance 4, and the accuracy adjustment Impressions 1a and 2
Even if these are reworked due to wear of the a, etc., the accuracy in the thickness direction of the forged product can be easily achieved by simply adjusting the shim 3, and machining of the contact surface is not required.
またディタンス４を上型２に取付けるボルト５のナラ）
５ａを上型２上部の角孔２ｃに収容するようにすれば、
上型２をダイセット（図示せず）に取付けた状態でボル
ト５の緩締を行うことができ、ナツト５ａが共まわりす
ることがない。Also, the bolt 5 that attaches the detance 4 to the upper die 2 has been loosened)
5a is housed in the square hole 2c at the top of the upper mold 2,
The bolts 5 can be loosely tightened with the upper mold 2 attached to a die set (not shown), and the nuts 5a do not rotate together.
しかもディタンス４は上型２に対して簡単に着脱できる
ので破損した場合、新たなディタンス４と交換するだけ
で上型２はそのまま使用できるため経済的である。Moreover, since the detance 4 can be easily attached to and removed from the upper mold 2, if it is damaged, the upper mold 2 can be used as is by simply replacing it with a new detance 4, which is economical.
なおディタンス４及びシム３は下型１側に設けるように
してもよい。Note that the detance 4 and the shim 3 may be provided on the lower mold 1 side.
第１図ａないしｆは従来の鍛造金型の説明図、第２図は
この考案の一実施例になる精密段進金型の平面図、第３
図は同断面図である。
１は下型、２は上型、１ａ及び２ａはインプレジョン、
１ｂ及び２ｂは凹段部、３はシム、４はディタンス、５
はボルト、５ａはナツト。Figures 1a to 1f are explanatory diagrams of a conventional forging die, Figure 2 is a plan view of a precision stepped die that is an embodiment of this invention, and
The figure is a sectional view of the same. 1 is the lower mold, 2 is the upper mold, 1a and 2a are impressions,
1b and 2b are recessed steps, 3 is a shim, 4 is a distance, and 5
is Boruto, and 5a is Natsu.
Claims (2)
インプレッションｌａ、２ａを囲繞するよう凹段部１ｂ
、２ｂを設け、これら凹段部１ｂ。 ２ｂの一力に適宜厚さのシム３を介してディタンス４を
着脱自在に取付けると共に、鍛造の際上記ディタンス４
の一部が他方の凹段部１ｂ。 ２ｂに嵌合するようにしてなる精密鍛造金型。(1) On the side between the opposing surfaces of the lower mold 1 and the upper mold 2,
A concave stepped portion 1b surrounds the impressions la and 2a.
, 2b are provided, and these recessed step portions 1b. A detance 4 is removably attached to one side of the 2b via a shim 3 of an appropriate thickness, and the detance 4 is
A part of is the other concave stepped portion 1b. Precision forging mold that fits into 2b.
ルト５の先端を、上型２または下型１に形成した角孔２
ｃに収容したナツト５ａに螺挿してなる実用新案登録請
求の範囲第１項記載の精密鍛造金型。(2) The tip of the bolt 5 for attaching the detance 4 to the upper mold 2 or lower mold 1 is the square hole 2 formed in the upper mold 2 or lower mold 1.
Precision forging mold according to claim 1, which is screwed into a nut 5a housed in c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14455378U JPS5840990Y2 (en) | 1978-10-23 | 1978-10-23 | Precision forging mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14455378U JPS5840990Y2 (en) | 1978-10-23 | 1978-10-23 | Precision forging mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5560237U JPS5560237U (en) | 1980-04-24 |
| JPS5840990Y2 true JPS5840990Y2 (en) | 1983-09-16 |
Family
ID=29123278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14455378U Expired JPS5840990Y2 (en) | 1978-10-23 | 1978-10-23 | Precision forging mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5840990Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59169639A (en) * | 1983-03-16 | 1984-09-25 | Toyoda Gosei Co Ltd | Automatic centering die for cold forging |
-
1978
- 1978-10-23 JP JP14455378U patent/JPS5840990Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5560237U (en) | 1980-04-24 |
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