JPH0166918U - - Google Patents
Info
- Publication number
- JPH0166918U JPH0166918U JP1987162802U JP16280287U JPH0166918U JP H0166918 U JPH0166918 U JP H0166918U JP 1987162802 U JP1987162802 U JP 1987162802U JP 16280287 U JP16280287 U JP 16280287U JP H0166918 U JPH0166918 U JP H0166918U
- Authority
- JP
- Japan
- Prior art keywords
- attached
- movable
- center pin
- pin
- electromagnet
- 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 claims description 6
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Description
第１図は本考案によるセンタピンにより穿孔開
始前の位置決めを行つている要部縦断面図であり
、第２図は同穿孔直後の縦断面図を示す。第３図
は同センタピン先端部の形状例を示す正面図であ
る。第４図は従来の磁気ボール盤による穿孔直後
を示す縦断面図である。
１はスピンドル、２はセンタピンガイド、３は
スプリング、４はセンタピン、４ａはセンタピン
ボデイ、４ｂはガイドスリーブ、４ｃはスプリン
グＡ、４ｄはピン、５は回転刃物、６は鋼板、７
は切削コア、８は切り刃部を示す。
FIG. 1 is a longitudinal cross-sectional view of the main part of the hole in which positioning is performed before the start of drilling using the center pin according to the present invention, and FIG. 2 is a longitudinal cross-sectional view of the same immediately after drilling. FIG. 3 is a front view showing an example of the shape of the tip of the center pin. FIG. 4 is a longitudinal sectional view showing immediately after drilling by a conventional magnetic drilling machine. 1 is a spindle, 2 is a center pin guide, 3 is a spring, 4 is a center pin, 4a is a center pin body, 4b is a guide sleeve, 4c is a spring A, 4d is a pin, 5 is a rotating blade, 6 is a steel plate, 7
8 indicates a cutting core, and 8 indicates a cutting edge portion.
Claims (1)
と、該スタンドに上下動可能に取付けられた電気
ドリルと、該電気ドリルの回転軸に取付けられた
回転刃物と、該回転軸内にスプリングを介して上
下動可能に取付けられたセンタピンから成る磁気
ボール盤において、前記センタピンの先端部にス
プリングを介して上下動可能に取付けられたピン
と、該ピンの外周部に、下端部外周を切り刃状に
突設したガイドスリーブを取付けて成る磁気ボー
ル盤のセンタピン。 An electromagnet, a stand attached to the electromagnet, an electric drill attached to the stand so as to be movable up and down, a rotary cutter attached to the rotating shaft of the electric drill, and a spring disposed within the rotating shaft. A magnetic drilling machine consisting of a center pin mounted so as to be movable up and down, the pin being attached to the tip of the center pin so as to be movable up and down via a spring, and the outer periphery of the pin having a protrusion in the shape of a cutting edge on the outer periphery of the lower end. A magnetic drilling machine center pin with a guide sleeve attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162802U JPH0746414Y2 (en) | 1987-10-23 | 1987-10-23 | Magnetic drilling machine center pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162802U JPH0746414Y2 (en) | 1987-10-23 | 1987-10-23 | Magnetic drilling machine center pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0166918U true JPH0166918U (en) | 1989-04-28 |
| JPH0746414Y2 JPH0746414Y2 (en) | 1995-10-25 |
Family
ID=31446961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987162802U Expired - Lifetime JPH0746414Y2 (en) | 1987-10-23 | 1987-10-23 | Magnetic drilling machine center pin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0746414Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011506112A (en) * | 2007-12-11 | 2011-03-03 | シーフォー・カーバイズ・リミテッド | Cutting device |
-
1987
- 1987-10-23 JP JP1987162802U patent/JPH0746414Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011506112A (en) * | 2007-12-11 | 2011-03-03 | シーフォー・カーバイズ・リミテッド | Cutting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0746414Y2 (en) | 1995-10-25 |