JPS5758925A - Formation for cylindrical work - Google Patents

Formation for cylindrical work

Info

Publication number
JPS5758925A
JPS5758925A JP55132286A JP13228680A JPS5758925A JP S5758925 A JPS5758925 A JP S5758925A JP 55132286 A JP55132286 A JP 55132286A JP 13228680 A JP13228680 A JP 13228680A JP S5758925 A JPS5758925 A JP S5758925A
Authority
JP
Japan
Prior art keywords
thickness
variation
mandrel
work
tube
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
JP55132286A
Other languages
Japanese (ja)
Inventor
Terushige Nakamura
Kazuhiko Oshiumi
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP55132286A priority Critical patent/JPS5758925A/en
Publication of JPS5758925A publication Critical patent/JPS5758925A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable correction to uniform thickness even if variation in thickness is large in drawing type spinning by giving specified bending moment to a thin tube immediately after forming according to variation in thickness in cross section of a work.
CONSTITUTION: A work 13 is rotated in a body with a mandrel 14 and drawn while being pressed by a roll 15. The thickness variation axis and the part of maximum thickness in the section at right angles to the mandrel axis of a thin tube 20 immediately after forming are detected by a thickness meter 31. In the case where the longitudinal direction of a groove 22 is parallel to the direction connecting the mandrel axis 14 and the part of maximum thickness, for instance, the upper end of tube 20 is the part of maximum thickness, a spindle 21 is rotated by a controller against the mandrel 14 so that the groove 22 extends downward in the figure. On the other hand, movement of connecting member 23 is controlled by retreat of a key member 29 to the right so that a chuck 18 is made eccentric to the opposite side to the part 32 by an amount corresponding to width of variation in thickness. Thus, bending moment is given to the tube 20, and the amount of cutting of the roll 15 to the work-piece 13 is changed to eliminate the width of variation in thickness.
COPYRIGHT: (C)1982,JPO&Japio
JP55132286A 1980-09-25 1980-09-25 Formation for cylindrical work Pending JPS5758925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55132286A JPS5758925A (en) 1980-09-25 1980-09-25 Formation for cylindrical work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55132286A JPS5758925A (en) 1980-09-25 1980-09-25 Formation for cylindrical work

Publications (1)

Publication Number Publication Date
JPS5758925A true JPS5758925A (en) 1982-04-09

Family

ID=15077726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55132286A Pending JPS5758925A (en) 1980-09-25 1980-09-25 Formation for cylindrical work

Country Status (1)

Country Link
JP (1) JPS5758925A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6216512B1 (en) * 1993-11-16 2001-04-17 Sango Co., Ltd. Method and apparatus for forming a processed portion of a workpiece
JP2019171410A (en) * 2018-03-28 2019-10-10 Ｋｙｂ株式会社 Rotation plastic processing roller and rotation plastic processor comprising the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6216512B1 (en) * 1993-11-16 2001-04-17 Sango Co., Ltd. Method and apparatus for forming a processed portion of a workpiece
JP2019171410A (en) * 2018-03-28 2019-10-10 Ｋｙｂ株式会社 Rotation plastic processing roller and rotation plastic processor comprising the same

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