JPH01172425U - - Google Patents
Info
- Publication number
- JPH01172425U JPH01172425U JP6831188U JP6831188U JPH01172425U JP H01172425 U JPH01172425 U JP H01172425U JP 6831188 U JP6831188 U JP 6831188U JP 6831188 U JP6831188 U JP 6831188U JP H01172425 U JPH01172425 U JP H01172425U
- Authority
- JP
- Japan
- Prior art keywords
- punch
- punching
- ceramic member
- workpiece
- flange processing
- 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
- 238000004080 punching Methods 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims 2
- 230000003746 surface roughness Effects 0.000 claims 1
- 238000005553 drilling Methods 0.000 description 2
Landscapes
- Punching Or Piercing (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
第１図ａ，ｂはこの考案に係るポンチ（打ち抜
き加工用ポンチ）の一実施例を説明する各々斜面
図および正面図、第２図ａ，ｂはこの考案に係る
ポンチ（打ち抜き加工用ポンチ）の他の実施例を
説明する各々斜面図および正面図、第３図ａ，ｂ
はこの考案に係るポンチ（打ち抜き孔フランジ加
工用ポンチ）のさらに他の実施例を説明する各々
斜面図および縦断面図、第４図は従来の打ち抜き
加工用ポンチを例示する斜面図、第５図ａ，ｂは
第４図の打ち抜き加工用ポンチを用いた孔あけ加
工装置を説明する各々孔あけ加工前後の縦断面図
、第６図ａ，ｂは従来の打ち抜き孔フランジ加工
用ポンチを例示する各々斜面図および縦断面図、
第７図ａ，ｂは第６図の打ち抜き孔フランジ加工
用ポンチを用いたフランジ加工装置を説明する各
々フランジ加工前後の縦断面図である。
１，１１，２１……ポンチ、１ａ，１１ａ……
ポンチ本体部（セラミツクス部材）、１ｄ，１１
ｄ……打ち抜き側端面、１ｅ，１１ｅ……面取り
部、１ｆ，１１ｆ……打ち抜き側側面、２２……
セラミツクス部材、２２ａ……フランジ加工部、
２３ａ……芯部材。
Figures 1 a and b are a slope view and a front view, respectively, illustrating an embodiment of the punch (punching punch) according to this invention, and Figures 2 a and b are punches (punching punch) according to this invention. A slope view and a front view, respectively, illustrating other embodiments of the
4 is a perspective view and a vertical cross-sectional view illustrating still another embodiment of the punch according to this invention (punch for punching flanging holes), FIG. 4 is a perspective view illustrating a conventional punch for punching, and FIG. Figures a and b are longitudinal cross-sectional views before and after drilling, respectively, illustrating a hole-drilling device using the punch for punching shown in Figure 4, and Figures 6 a and b illustrate a conventional punch for punching flanges for punched holes. Slope view and longitudinal section view, respectively.
FIGS. 7a and 7b are longitudinal cross-sectional views before and after flange processing, respectively, illustrating a flange processing apparatus using the hole flange processing punch shown in FIG. 6. FIGS. 1, 11, 21...Ponchi, 1a, 11a...
Punch body (ceramics member), 1d, 11
d... Punching side end face, 1e, 11e... Chamfered portion, 1f, 11f... Punching side side surface, 22...
Ceramics member, 22a...flange processing part,
23a... Core member.
Claims (1)
材で形成した打ち抜き加工用ポンチであつて、前
記セラミツクス部材の曲げ強さが２２０Kgｆ／mm
２以上であり、打ち抜き側端面の面取り部の曲率
半径が０．５〜１．０mmの範囲であるとともに前
記被加工物と接触する部分の表面あらさが０．８
μｍ以下であることを特徴とする打ち抜き加工用
ポンチ。 (2) 被加工物と接触する部分をセラミツクス部
材で形成した打ち抜き孔フランジ加工用ポンチで
あつて、前記セラミツクス部材の曲げ強さが２２
０Kgｆ／mm２以上であり、かつまた前記セラミツ
クス部材が筒状体をなしていて内部に芯部材を備
え、前記セラミツクス部材の肉厚がポンチ外径の
４５〜５５％の範囲であると共に、前記セラミツ
クス部材の側面に設けたフランジ加工部の（打ち
抜き孔拡大幅）／（打ち抜き孔拡大ストローク）
であらわされる勾配が１．２〜１．５の範囲であ
ることを特徴とする打ち抜き孔フランジ加工用ポ
ンチ。[Claims for Utility Model Registration] (1) A punch for punching in which the part that contacts the workpiece is formed of a ceramic member, wherein the bending strength of the ceramic member is 220 Kgf/mm.
2 or more, the radius of curvature of the chamfered part of the punched side end face is in the range of 0.5 to 1.0 mm, and the surface roughness of the part in contact with the workpiece is 0.8
A punch for punching that is characterized by a diameter of μm or less. (2) A punch for punching holes for flange processing, the part of which comes into contact with the workpiece is formed of a ceramic member, and the bending strength of the ceramic member is 22.
0 Kgf/mm 2 or more, and the ceramic member has a cylindrical shape and includes a core member therein, and the thickness of the ceramic member is in the range of 45 to 55% of the outer diameter of the punch, and (Punching hole enlargement width)/(Punching hole enlargement stroke) of the flange processing part provided on the side of a ceramic member
1. A punch for punching a punch for flange processing of a punched hole, characterized in that the slope represented by is in the range of 1.2 to 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6831188U JPH01172425U (en) | 1988-05-24 | 1988-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6831188U JPH01172425U (en) | 1988-05-24 | 1988-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01172425U true JPH01172425U (en) | 1989-12-06 |
Family
ID=31293636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6831188U Pending JPH01172425U (en) | 1988-05-24 | 1988-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01172425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04127925A (en) * | 1990-09-20 | 1992-04-28 | Hitachi Metals Ltd | Punching tool |
-
1988
- 1988-05-24 JP JP6831188U patent/JPH01172425U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04127925A (en) * | 1990-09-20 | 1992-04-28 | Hitachi Metals Ltd | Punching tool |
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