JPS5781930A - Controlling method for mechanical expander - Google Patents

Controlling method for mechanical expander

Info

Publication number
JPS5781930A
JPS5781930A JP15720780A JP15720780A JPS5781930A JP S5781930 A JPS5781930 A JP S5781930A JP 15720780 A JP15720780 A JP 15720780A JP 15720780 A JP15720780 A JP 15720780A JP S5781930 A JPS5781930 A JP S5781930A
Authority
JP
Japan
Prior art keywords
expander
tube
height
fed
holding part
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
Application number
JP15720780A
Other languages
Japanese (ja)
Inventor
Kazuo Kawai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP15720780A priority Critical patent/JPS5781930A/en
Publication of JPS5781930A publication Critical patent/JPS5781930A/en
Pending legal-status Critical Current

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  • Automatic Assembly (AREA)

Abstract

PURPOSE: To insert and remove a tube smoothly and quickly without giving damage by properly adjusting the position of a grip and receiving rollers when the tube is fed to and pulled out from an expander.
CONSTITUTION: A gripper 2 is set so that when a tube P is fed to an expander 1 a holding part 23 comes to the first position A where the holding part is positioned at a height H1 from the floor surface, and when the tube is pulled out from the expander 1, the holding part 23 is positioned at the second position A2 where it is at a height H2 (H2<H1) from the floor surface. On the other hand, receiving rollers are set at the first position B1 where the upper peripheral face comes at a height of R1 when the tube P is fed to the expander 1, and at the second position B2 where the height is R2 (R2>R1). By this way, the tube P can be kept always concentric with the expander 1 and the generation of flaws on the inner face due to contact with the expander 1 can be prevented.
COPYRIGHT: (C)1982,JPO&Japio
JP15720780A 1980-11-07 1980-11-07 Controlling method for mechanical expander Pending JPS5781930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15720780A JPS5781930A (en) 1980-11-07 1980-11-07 Controlling method for mechanical expander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15720780A JPS5781930A (en) 1980-11-07 1980-11-07 Controlling method for mechanical expander

Publications (1)

Publication Number Publication Date
JPS5781930A true JPS5781930A (en) 1982-05-22

Family

ID=15644540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15720780A Pending JPS5781930A (en) 1980-11-07 1980-11-07 Controlling method for mechanical expander

Country Status (1)

Country Link
JP (1) JPS5781930A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59197321A (en) * 1983-04-21 1984-11-08 Kawasaki Steel Corp Expanding device for uoe pipe
JPS59232621A (en) * 1983-06-14 1984-12-27 Nippon Kokan Kk <Nkk> Method for controlling longitudinal warp in mechanical expander
JPS6297716A (en) * 1985-10-21 1987-05-07 Kawasaki Steel Corp Straightening method for bend of steel pipe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59197321A (en) * 1983-04-21 1984-11-08 Kawasaki Steel Corp Expanding device for uoe pipe
JPS59232621A (en) * 1983-06-14 1984-12-27 Nippon Kokan Kk <Nkk> Method for controlling longitudinal warp in mechanical expander
JPH0148086B2 (en) * 1983-06-14 1989-10-18 Nippon Kokan Kk
JPS6297716A (en) * 1985-10-21 1987-05-07 Kawasaki Steel Corp Straightening method for bend of steel pipe

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