JPS6334546U - - Google Patents
Info
- Publication number
- JPS6334546U JPS6334546U JP12775486U JP12775486U JPS6334546U JP S6334546 U JPS6334546 U JP S6334546U JP 12775486 U JP12775486 U JP 12775486U JP 12775486 U JP12775486 U JP 12775486U JP S6334546 U JPS6334546 U JP S6334546U
- Authority
- JP
- Japan
- Prior art keywords
- punch die
- cross shape
- microscrew
- cross
- conical cross
- 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
- 238000010273 cold forging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Landscapes
- Forging (AREA)
Description
第１図は本考案にかかる冷間圧造用十字穴付極
小ネジ、頭部十字穴加工用パンチ型の正面図。第
２図は従来の十字穴成形用パンチ型。第３図〜第
６図は本考案のパンチ型を用いて成形する加工工
程順の成形形状を示す図。第７図ａは本考案のパ
ンチ型により成形された極小ネジの正面図、第７
図ｂは同側面図。
１……素材、２……頭部（予備打ち）、３……
胴部外径、４……頭部頭径、５……十字穴溝形状
、６……雄ねじ、７……公知の十字穴成形用パン
チ型、８……円錐形状の先端角度部、９……円錐
形状の底部側面、１０……円錐形状の底部面。
FIG. 1 is a front view of a cross-recessed microscrew for cold heading and a punch type for machining a cross-recessed head according to the present invention. Figure 2 shows a conventional cross-recessed punch mold. FIG. 3 to FIG. 6 are diagrams showing the molded shape in the order of processing steps formed using the punch die of the present invention. Fig. 7a is a front view of a microscrew formed by the punch die of the present invention;
Figure b is a side view of the same. 1...Material, 2...Head (preliminary stamping), 3...
Body outer diameter, 4... Head diameter, 5... Cross recess groove shape, 6... External thread, 7... Known cross recess forming punch type, 8... Conical end angle portion, 9... ... Cone-shaped bottom side surface, 10... Cone-shaped bottom surface.
Claims (1)
る円錐十字形状に形成されたパンチ型において、
前記パンチ型は、前記円錐十字形状の先端角度部
及び底部面ならびに側面が切除形成されているこ
とを特徴とする極小ねじ頭部十字穴成形用パンチ
型。 In a punch die formed in a conical cross shape for cold forging the cross-shaped head groove of a microscrew,
The punch die is characterized in that the tip angle portion, bottom surface, and side surface of the conical cross shape are cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12775486U JPS6334546U (en) | 1986-08-21 | 1986-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12775486U JPS6334546U (en) | 1986-08-21 | 1986-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6334546U true JPS6334546U (en) | 1988-03-05 |
Family
ID=31022809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12775486U Pending JPS6334546U (en) | 1986-08-21 | 1986-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6334546U (en) |
-
1986
- 1986-08-21 JP JP12775486U patent/JPS6334546U/ja active Pending