JPS6442720U

JPS6442720U -

Info

Publication number: JPS6442720U
Application number: JP13659687U
Authority: JP
Priority date: 1987-09-07
Filing date: 1987-09-07
Publication date: 1989-03-14

Description

[Brief explanation of the drawing]

第１図乃至第４図は本考案の一実施例を示すも
ので、第１図はポンチの縦断側面図、第２図は全
体の概要を示す図、第３図ａは切断した状態にお
けるパイプの一部を破断して示す側面図、第３図
ｂは同パイプの端末の正面図、第４図ａは修正し
た状態におけるパイプの一部を破断して示す側面
図、第４図ｂは同パイプの端末の正面図であり、
第５図ａは従来例の第３図ａ相当図、第５図ｂは
従来例のポンチの縦断側面図、第６図ａは同切断
した状態におけるパイプの端末の正面図、第６図
ｂは同修正した状態におけるパイプの端末の正面
図である。図中、１３はパイプ、１３ａは端末、１４はポ
ンチ、１６は外周修正穴、１７は内周修正芯部を
示す。 Figures 1 to 4 show an embodiment of the present invention, in which Figure 1 is a longitudinal cross-sectional side view of the punch, Figure 2 is a diagram showing the overall outline, and Figure 3a is a pipe in a cut state. FIG. 3b is a front view of the end of the pipe, FIG. It is a front view of the terminal of the same pipe,
Fig. 5a is a view corresponding to Fig. 3a of the conventional example, Fig. 5b is a longitudinal cross-sectional side view of the conventional punch, Fig. 6a is a front view of the end of the pipe in the same cut state, Fig. 6b is a front view of the end of the pipe in the same corrected state. In the figure, 13 is a pipe, 13a is an end, 14 is a punch, 16 is an outer circumference correction hole, and 17 is an inner circumference correction core.

Claims

[Scope of utility model registration request]

The cut pipe is fixed and a punch is advanced relatively toward the end of the pipe to correct the outer circumference and inner circumference of the cut part. A pipe end correction device characterized in that an inner periphery correction core is provided in the center so as to protrude forward beyond the opening end surface of the hole.