JPH03106220U - - Google Patents
Info
- Publication number
- JPH03106220U JPH03106220U JP1284890U JP1284890U JPH03106220U JP H03106220 U JPH03106220 U JP H03106220U JP 1284890 U JP1284890 U JP 1284890U JP 1284890 U JP1284890 U JP 1284890U JP H03106220 U JPH03106220 U JP H03106220U
- Authority
- JP
- Japan
- Prior art keywords
- centering pin
- punch
- hole
- rear end
- puncher
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Punching Or Piercing (AREA)
Description
第１図Ａ，Ｂは、この考案に係るポンチの一部
破断正面図および底面図、第２図は、ポンチ要部
の部分拡大図、第３図は、中央穴に芯出しピンを
後退させた状態でのポンチの一部破断正面図、第
４図は、穿孔加工前での携帯用油圧式パンチヤー
の概略正面図、第５図は、Ｈ型鋼の穿孔加工を示
す工程図、第６図は、別実施例に係るポンチの一
部破断正面図、第７図Ａ，Ｂは、公知のポンチの
一部破断正面図および底面図である。
１０……穴あけポンチ、１１……へこみ、１２
……中央穴、１４……芯出しピン、１４ａ……芯
出しピンの小径後端部、１６……リターンばね、
１６ａ……リターンばねの小径後端部、２０……
携帯用油圧式パンチヤー、２２……ピストン、２
４……ダイス、２６……Ｈ型鋼（被加工物）、２
８……突当てブラケツト。
Figures 1A and B are a partially cutaway front view and bottom view of the punch according to this invention, Figure 2 is a partially enlarged view of the main part of the punch, and Figure 3 shows the centering pin retreated into the center hole. Fig. 4 is a schematic front view of the portable hydraulic puncher before drilling, Fig. 5 is a process diagram showing drilling of H-shaped steel, Fig. 6 7 is a partially cutaway front view of a punch according to another embodiment, and FIGS. 7A and 7B are a partially cutaway front view and bottom view of a known punch. 10...Drilling punch, 11...Dent, 12
...Central hole, 14...Centering pin, 14a...Small diameter rear end of centering pin, 16...Return spring,
16a... small diameter rear end of return spring, 20...
Portable hydraulic puncher, 22... Piston, 2
4...Dice, 26...H type steel (workpiece), 2
8... Butt bracket.
Claims (1)
の背後にリターンばねを設けて芯出しピンを出入
り自在に保持した穴あけポンチ。 (2) 芯出しピンは、後端部を小径とした段付形
状とされ、リターンばねは、中央穴に密着される
外径を後端部に、芯出しピンの後端部を挟持する
内径を前端部にそれぞれ有している請求項１記載
の穴あけポンチ。 (3) 芯出しピンは、後端部を大径とした段付形
状とされ、中央穴は、芯出しピンの段部の当接可
能な段部を持つ段付貫通穴である請求項１記載の
穴あけポンチ。 (4) モータ、ポンプを内蔵し、ポンプで加圧し
た加圧油をシリンダに供給してピストンを前進さ
せ、本体上のダイス、ピストン前端のポンチ間の
被加工物を穿孔する携帯用油圧式パンチヤーにお
いて、 突当てブラケツトが、ダイスに近接して、パン
チヤーほ体に背後からスライド可能に装着され、 ポンチが、中央穴に挿通された芯出しピンを持
ち、芯出しピンの背後にリターンばねを設けて芯
出しピンを出入り自在に保持したことを特徴とし
た携帯用油圧式パンチヤー。 (5) 加圧油の流路を短絡する切換え弁を設け、
この切換え弁の切換えによつて、ポンチが被加工
物に押圧されずポンチ先端の芯出しピンのみが被
加工物に押圧されるストロークだけ、ピストンを
前進可能とした請求項３記載の携帯用油圧式パン
チヤー。[Scope of Claim for Utility Model Registration] (1) A hole punch in which a centering pin is inserted into a central hole and a return spring is provided behind the centering pin to hold the centering pin so that it can move in and out. (2) The centering pin has a stepped shape with a smaller diameter at the rear end, and the return spring has an outer diameter that fits tightly in the center hole at the rear end, and an inner diameter that holds the rear end of the centering pin. 2. The hole punch according to claim 1, further comprising: a hole punch at each front end thereof. (3) The centering pin has a stepped shape with a larger diameter at the rear end, and the center hole is a stepped through hole having a stepped portion that can be contacted by the stepped portion of the centering pin. Hole punch as described. (4) A portable hydraulic type with a built-in motor and pump, which supplies pressurized oil from the pump to the cylinder to move the piston forward and punch the workpiece between the die on the main body and the punch at the front end of the piston. In the puncher, a butt bracket is slidably attached to the puncher's body from behind in close proximity to the die, and the punch has a centering pin inserted through the center hole and a return spring behind the centering pin. A portable hydraulic puncher characterized by a centering pin that can be freely moved in and out. (5) Provide a switching valve to short-circuit the pressurized oil flow path,
The portable hydraulic system according to claim 3, wherein the switching of the switching valve allows the piston to move forward by a stroke such that the punch is not pressed against the workpiece and only the centering pin at the tip of the punch is pressed against the workpiece. formula puncher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1284890U JPH0634020Y2 (en) | 1990-02-13 | 1990-02-13 | Drill punch and portable hydraulic puncher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1284890U JPH0634020Y2 (en) | 1990-02-13 | 1990-02-13 | Drill punch and portable hydraulic puncher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03106220U true JPH03106220U (en) | 1991-11-01 |
| JPH0634020Y2 JPH0634020Y2 (en) | 1994-09-07 |
Family
ID=31516297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1284890U Expired - Fee Related JPH0634020Y2 (en) | 1990-02-13 | 1990-02-13 | Drill punch and portable hydraulic puncher |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634020Y2 (en) |
-
1990
- 1990-02-13 JP JP1284890U patent/JPH0634020Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0634020Y2 (en) | 1994-09-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |