JPH0287535U - - Google Patents
Info
- Publication number
- JPH0287535U JPH0287535U JP16347988U JP16347988U JPH0287535U JP H0287535 U JPH0287535 U JP H0287535U JP 16347988 U JP16347988 U JP 16347988U JP 16347988 U JP16347988 U JP 16347988U JP H0287535 U JPH0287535 U JP H0287535U
- Authority
- JP
- Japan
- Prior art keywords
- square pipe
- inner mold
- forming apparatus
- groove
- welding groove
- 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
- 239000002184 metal Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims 3
- 238000000465 moulding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Forging (AREA)
Description
図面はこの考案の一実施例を示し、第１図は成
形装置の平面図、第２図は成形機の正面図、第３
図は同断面図、第４図は金型の説明図、第５図は
成形時の説明図、第６図は成形により得られた開
先の断面図、第７図は従来の説明図である。
１は角パイプ、１ａは開先、１ｂは裏金部、３
は加熱炉、５は成形機、８は内型、９は外型。
The drawings show one embodiment of this invention, in which Figure 1 is a plan view of the molding device, Figure 2 is a front view of the molding machine, and Figure 3 is a front view of the molding machine.
Figure 4 is an explanatory diagram of the mold, Figure 5 is an explanatory diagram during molding, Figure 6 is a sectional diagram of the groove obtained by molding, and Figure 7 is an explanatory diagram of the conventional method. be. 1 is a square pipe, 1a is a groove, 1b is a back metal part, 3
5 is a heating furnace, 5 is a molding machine, 8 is an inner mold, and 9 is an outer mold.
Claims (1)
けられたマンドレル１１により拡開されて成形す
べき角パイプ１の内周面に当接される内型８と、
上記内型８と対応するように複数分割され、かつ
加圧手段により内型８方向へ移動されて、内型８
の間で上記角パイプ１の端部に開先１ａとこれに
連続する裏金部１ｂを成形する外型７とよりなる
角パイプの溶接開先成形装置。 (2) 一端側に開先１ａ及び裏金部１ｂを成形し
た角パイプ１を搬送中端部を反転する搬送手段を
設けてなる請求項１記載の溶接開先成形装置。 (3) 開先１ａ及び裏金部１ａを成形すべき角パ
イプ１の端部を加熱する加熱炉３を設けてなる請
求項１記載の溶接開先成形装置。[Claims for Utility Model Registration] (1) An inner mold 8 that is divided into a plurality of parts and that is expanded by a mandrel 11 that is provided in the center so as to be able to move forward and backward, and that comes into contact with the inner circumferential surface of the square pipe 1 to be formed. and,
The inner mold 8 is divided into a plurality of parts corresponding to the inner mold 8, and is moved in the direction of the inner mold 8 by a pressurizing means.
A welding groove forming apparatus for a square pipe, which comprises an outer mold 7 for forming a groove 1a at the end of the square pipe 1 and a back metal part 1b continuous thereto. (2) The welding groove forming apparatus according to claim 1, further comprising a conveying means for reversing the end portion of the square pipe 1 having the groove 1a and the back metal portion 1b formed on one end thereof. (3) The welding groove forming apparatus according to claim 1, further comprising a heating furnace 3 for heating the end of the square pipe 1 on which the groove 1a and the backing metal part 1a are to be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16347988U JPH0287535U (en) | 1988-12-19 | 1988-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16347988U JPH0287535U (en) | 1988-12-19 | 1988-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0287535U true JPH0287535U (en) | 1990-07-11 |
Family
ID=31448237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16347988U Pending JPH0287535U (en) | 1988-12-19 | 1988-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0287535U (en) |
-
1988
- 1988-12-19 JP JP16347988U patent/JPH0287535U/ja active Pending
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