JPH0337789Y2 - - Google Patents
Info
- Publication number
- JPH0337789Y2 JPH0337789Y2 JP17289785U JP17289785U JPH0337789Y2 JP H0337789 Y2 JPH0337789 Y2 JP H0337789Y2 JP 17289785 U JP17289785 U JP 17289785U JP 17289785 U JP17289785 U JP 17289785U JP H0337789 Y2 JPH0337789 Y2 JP H0337789Y2
- Authority
- JP
- Japan
- Prior art keywords
- cam
- passive
- return spring
- fixed
- fixed cam
- 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
- 238000002955 isolation Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Punching Or Piercing (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案はプレス型に使用されるカム構造に関す
るものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a cam structure used in a press mold.
（従来の技術）
従来、プレス型に使用されるカム構造として
は、第４図乃至第６図に示す構造のものが用いら
れている。このカム構造において、受動カム２の
中に戻し用ばね３が内蔵されているが、多くの場
合、戻し用ばね３と、固定カム１及び受動カム２
の互いに摺接する傾斜面１ａ，２ａとは、第５図
に示すように、概ねカムの中心軸付近のほぼ同一
線上に配置されている。(Prior Art) Conventionally, as a cam structure used in a press mold, a structure shown in FIGS. 4 to 6 has been used. In this cam structure, a return spring 3 is built into the passive cam 2, but in many cases, the return spring 3, the fixed cam 1, and the passive cam 2 are
As shown in FIG. 5, the inclined surfaces 1a and 2a which are in sliding contact with each other are arranged approximately on the same line near the central axis of the cam.
（考案が解決しようとする問題点）
一般に、カムの大きさ（長さ）が決まる要因と
しては、戻し用ばね３の長さ、受動カム２と固定
カム１との接触角θ及びカムストロークＳなどが
挙げられるが、上記従来のカム構造では、戻し用
ばね３と、固定カム１及び受動カム２の互いに摺
接する傾斜面１ａ，２ａとがほぼ同一線上に配置
されているため、戻し用ばね３の長さが制約要因
となつて、カムのコンパクト化を推進する上で大
きな障害となつていた。(Problem to be solved by the invention) Generally, the factors that determine the size (length) of the cam include the length of the return spring 3, the contact angle θ between the passive cam 2 and the fixed cam 1, and the cam stroke S. However, in the above-mentioned conventional cam structure, since the return spring 3 and the inclined surfaces 1a and 2a of the fixed cam 1 and the passive cam 2 that are in sliding contact with each other are arranged almost on the same line, the return spring The length of the cam was a limiting factor and was a major obstacle to making the cam more compact.
本考案は、かかる問題点に鑑みてなされたもの
で、従来の機能を損うことなく、コンパクト化を
はかることのできるプレス型のカム構造を提供し
ようとするものである。 The present invention has been made in view of these problems, and aims to provide a press-type cam structure that can be made more compact without impairing conventional functions.
（問題点を解決するための手段）
本考案は上記問題点を解決するための手段とし
て、プレス型のカム構造を、固定カム及び受動カ
ムの互いに摺接する傾斜面を、それぞれ間隔をあ
けて並列配置された複数の傾斜面に分割形成し、
前記固定カムの各傾斜面の間の隔離空間を、実動
カムの戻し用ばね保持部分が収納される収納部に
形成した構成とすることを特徴とするものであ
る。(Means for Solving the Problems) The present invention, as a means for solving the above problems, uses a press-type cam structure in which the inclined surfaces of the fixed cam and the passive cam that slide against each other are arranged in parallel with an interval between them. Divided and formed into multiple arranged inclined surfaces,
The present invention is characterized in that the isolated space between each inclined surface of the fixed cam is formed in a storage portion in which a return spring holding portion of the active cam is stored.
（作用）
このような構成とすれば、受動カムの戻し用ば
ね保持部分が固定カムの各傾斜面の間の隔離空間
に収納されることにより、受動カムの傾斜面まで
の隔離が短縮され、従来の機能を損うことなく、
コンパクト化をはかることが可能となる。(Function) With this configuration, the return spring holding portion of the passive cam is housed in the isolation space between the inclined surfaces of the fixed cam, thereby shortening the isolation between the passive cam and the inclined surfaces. Without sacrificing traditional functionality,
It becomes possible to achieve compactness.
（実施例）
次に本考案の一実施例を第１図乃至第３図につ
いて説明する。なお、第１図は本考案のカム構造
の縦断面図、第２図は固定カムを取外した、受動
カム周辺の平面図、第３図は固定カムの側面図を
示すものである。(Embodiment) Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 3. Note that FIG. 1 is a longitudinal sectional view of the cam structure of the present invention, FIG. 2 is a plan view of the area around the passive cam with the fixed cam removed, and FIG. 3 is a side view of the fixed cam.
第１図に示すように、固定カム１と受動カム２
には、互いに摺接する傾斜面１ａと傾斜面２ａが
設けられている。前記固定カム１は、第３図に示
すように、傾斜面側で二股状に分割されて、２ケ
の傾斜面１ａが間隔をあけて並列に配置されてい
る。また、受動カム２には、第２図に示すよう
に、前記固定カム１の各傾斜面１ａに摺接する２
ケの傾斜面２ａが並列に配置されている。該受動
カム２には、戻し用ばね３が内蔵保持されてお
り、その戻し用ばね保持部分をはさみこむ形で前
記傾斜面２ａが設けられている。固定カム１のバ
ツクアツププレート４は、受動カム２のストツパ
を兼ねており、受動カム２がストロークＳ分戻つ
た時、戻し用ばね保持部分が干渉しないよう穴５
が設けられている。なお、６は補強リブ、７はス
ライドプレートである。 As shown in Figure 1, a fixed cam 1 and a passive cam 2
is provided with an inclined surface 1a and an inclined surface 2a which are in sliding contact with each other. As shown in FIG. 3, the fixed cam 1 is divided into two parts on the inclined surface side, and two inclined surfaces 1a are arranged in parallel with an interval between them. Further, as shown in FIG. 2, the passive cam 2 includes 2
The inclined surfaces 2a are arranged in parallel. The passive cam 2 has a built-in and held return spring 3, and the inclined surface 2a is provided to sandwich the return spring holding portion. The back-up plate 4 of the fixed cam 1 also serves as a stopper for the driven cam 2, and when the driven cam 2 returns by the stroke S, the back-up plate 4 of the fixed cam 1 is provided with a hole 5 to prevent interference with the return spring holding part.
is provided. Note that 6 is a reinforcing rib and 7 is a slide plate.
次に作動を説明する。まず、上型の下降により
固定カム１が下降し、これにともなつて受動カム
２が図中右側に移動し、先端に備えられたポンチ
８等で所定の加工が行なわれ、加工後、固定カム
１の上昇により受動カム２が戻し用ばね３で元の
状態に復帰する（この作動は従来のものと同様で
ある）。この際、本考案のものは、前記のごとく、
戻し用ばね保持部分をはさみこむ形で傾斜面２ａ
が設けられており、その位置は、第１図、第２図
に示すように、受動カム２の最長部（一般的には
戻し用ばねの長さにより決る）よりだけ中へひ
つこんでいる。したがつて、この面がストツパ面
となつてカムストロークＳ分だけ戻り、バツクア
ツププレート４と接触する。この時、戻し用ばね
保持部分がだけとび出すことになるが、バツク
アツププレート４に穴５が設けられているので、
この部分の干渉が防止される。 Next, the operation will be explained. First, the fixed cam 1 is lowered by the lowering of the upper mold, and the passive cam 2 is moved to the right side in the figure, and the prescribed processing is performed with the punch 8 etc. provided at the tip, and after processing, the fixed cam 1 is fixed. As the cam 1 rises, the passive cam 2 is returned to its original state by the return spring 3 (this operation is similar to the conventional one). In this case, the invention of the present invention, as mentioned above,
The inclined surface 2a is sandwiched between the return spring holding part.
As shown in Figs. 1 and 2, the position of the cam 2 is recessed inward from the longest part of the passive cam 2 (generally determined by the length of the return spring). . Therefore, this surface becomes a stopper surface, returns by the cam stroke S, and comes into contact with the backup plate 4. At this time, only the return spring holding part will pop out, but since the back up plate 4 has a hole 5,
Interference in this part is prevented.
本考案のカム構造は概ね上記のように構成され
る。なお、固定カム１は受動カム２に対応して傾
斜面が並列配置された２ケの傾斜面１ａに分割形
成されているが、補強リブ６等により強度的に問
題ないものとすることができ、また、面圧計算等
により、傾斜面１ａの幅なども充分確保すること
が可能である。 The cam structure of the present invention is generally constructed as described above. Although the fixed cam 1 is divided into two inclined surfaces 1a arranged in parallel corresponding to the passive cams 2, this can be made without any problem in terms of strength due to the reinforcing ribs 6, etc. Furthermore, it is possible to ensure a sufficient width of the inclined surface 1a by calculating the surface pressure or the like.
（考案の効果）
本考案は以上説明したように、固定カム及び受
動カムの互いに摺接する傾斜面を複数化し、固定
カムの各傾斜面の間の隔離空間に受動カムの戻し
用ばね保持部分を収納できるようにしたから、受
動カムの戻し用ばね部の収納スペースを従来並み
に確保しながら、受動カムの傾斜面までの距離を
短縮することができ、カムユニツトのコンパクト
化をはかることができる。また、本考案によれ
ば、このようにカムユニツトのコンパクト化がは
かれて、その重量低減、コスト低減に寄与できる
ばかりでなく、これをプレス型に組み込むことに
より、プレス型そのものの面積を小さくすること
が可能である。(Effect of the invention) As explained above, the present invention has a plurality of inclined surfaces of the fixed cam and the passive cam that are in sliding contact with each other, and a spring holding portion for returning the passive cam is provided in the isolated space between each inclined surface of the fixed cam. Since it can be stored, the distance to the inclined surface of the passive cam can be shortened while securing the storage space for the return spring part of the passive cam at the same level as before, making it possible to make the cam unit more compact. Furthermore, according to the present invention, the cam unit can be made more compact in this way, which not only contributes to reducing its weight and cost, but also reduces the area of the press mold itself by incorporating it into the press mold. Is possible.
第１図乃至第３図は本考案の実施例を示すもの
で、第１図は本考案に係るカム構造の縦断面図、
第２図は固定カムを取外した、受動カム周辺の平
面図、第３図は固定カムの側面図、第４図乃至第
６図は従来例を示すもので、第４図は従来のカム
構造の縦断面図、第５図は固定カムを取外した、
受動カム周辺の平面図、第６図は固定カムの側面
図である。
１……固定カム、１ａ……傾斜面、２……受動
カム、２ａ……傾斜面、３……戻しばね。
1 to 3 show an embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view of the cam structure according to the present invention;
Figure 2 is a plan view of the area around the passive cam with the fixed cam removed, Figure 3 is a side view of the fixed cam, Figures 4 to 6 show conventional examples, and Figure 4 is a conventional cam structure. Fig. 5 is a vertical cross-sectional view of , with the fixed cam removed.
FIG. 6 is a plan view of the vicinity of the passive cam and a side view of the fixed cam. 1... Fixed cam, 1a... Inclined surface, 2... Passive cam, 2a... Inclined surface, 3... Return spring.
Claims (1)
を、それぞれ間隔をあけて並列配置された複数の
傾斜面に分割形成し、前記固定カムの各傾斜面の
間の隔離空間を、受動カムの戻し用ばね保持部分
が収納される収納部に形成したことを特徴とする
プレス型のカム構造。 The sloped surfaces of the fixed cam and the passive cam that are in sliding contact with each other are divided into a plurality of sloped surfaces arranged in parallel at intervals, and the isolated space between each sloped surface of the fixed cam is used for returning the passive cam. A press-type cam structure characterized by forming a storage part in which a spring holding part is stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17289785U JPH0337789Y2 (en) | 1985-11-09 | 1985-11-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17289785U JPH0337789Y2 (en) | 1985-11-09 | 1985-11-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6282130U JPS6282130U (en) | 1987-05-26 |
| JPH0337789Y2 true JPH0337789Y2 (en) | 1991-08-09 |
Family
ID=31109853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17289785U Expired JPH0337789Y2 (en) | 1985-11-09 | 1985-11-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0337789Y2 (en) |
-
1985
- 1985-11-09 JP JP17289785U patent/JPH0337789Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6282130U (en) | 1987-05-26 |
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