CS199709B2 - Loosable connection between mandrel and mandrel bar of punching machine - Google Patents

Loosable connection between mandrel and mandrel bar of punching machine Download PDF

Info

Publication number
CS199709B2
CS199709B2 CS776091A CS609177A CS199709B2 CS 199709 B2 CS199709 B2 CS 199709B2 CS 776091 A CS776091 A CS 776091A CS 609177 A CS609177 A CS 609177A CS 199709 B2 CS199709 B2 CS 199709B2
Authority
CS
Czechoslovakia
Prior art keywords
mandrel
spacer
hook
longitudinal hook
nose
Prior art date
Application number
CS776091A
Other languages
Czech (cs)
English (en)
Inventor
Hans Maurer
Klaus Rehag
Original Assignee
Mannesmann Ag
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 Mannesmann Ag filed Critical Mannesmann Ag
Publication of CS199709B2 publication Critical patent/CS199709B2/cs

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B21B25/06—Interchanging mandrels, fixing plugs on mandrel rods or cooling during interchanging mandrels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Unwinding Webs (AREA)
  • Winding Of Webs (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Earth Drilling (AREA)
CS776091A 1976-11-16 1977-09-20 Loosable connection between mandrel and mandrel bar of punching machine CS199709B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2652759A DE2652759C3 (de) 1976-11-16 1976-11-16 Lösbare Verbindung zwischen einem Dorn und der Dornstange eines Schrägwalzwerkes

Publications (1)

Publication Number Publication Date
CS199709B2 true CS199709B2 (en) 1980-07-31

Family

ID=5993548

Family Applications (1)

Application Number Title Priority Date Filing Date
CS776091A CS199709B2 (en) 1976-11-16 1977-09-20 Loosable connection between mandrel and mandrel bar of punching machine

Country Status (6)

Country Link
US (1) US4149396A (de)
CA (1) CA1068520A (de)
CS (1) CS199709B2 (de)
DE (1) DE2652759C3 (de)
FR (1) FR2370532A1 (de)
IT (1) IT1087783B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2166520A1 (en) * 1995-03-09 1996-09-10 Victor William Nery Single-piece self-guiding high mill plug
US6006575A (en) * 1999-03-25 1999-12-28 Usx Corporation Reversible mandrel bar assembly
AU2003279777A1 (en) * 2002-06-28 2004-01-19 November Aktiengesellschaft Gesellschaft Fur Molekulare Medizin Electrochemical detection method and device
EP1728566B1 (de) * 2004-03-11 2012-08-29 Sumitomo Metal Industries, Ltd. Vorrichtung zur herstellung nahtloser rohre und diese verwendendes verfahren zur herstellung nahtloser rohre
CN103658185A (zh) * 2013-11-28 2014-03-26 苏州踵力重型机械有限公司 无缝钢管高效穿孔顶头
CN104368604B (zh) * 2014-11-04 2016-06-29 江苏华菱锡钢特钢有限公司 一种穿孔机组顶杆活接

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1385926A (fr) * 1963-03-12 1965-01-15 Ti Group Services Ltd Mandrin pour la fabrication de tubes
DE7141104U (de) * 1971-10-26 1972-08-24 Mannesmann Meer Ag Walzdorn fur Lochschragwalzwerke
DE2163818A1 (de) * 1971-12-17 1973-06-20 Mannesmann Roehren Werke Ag Stopfen fuer rohrwalzwerk
DE2347385A1 (de) * 1973-09-17 1975-03-27 Mannesmann Meer Ag Einrichtung zum verbinden und loesen eines dornes mit bzw. von einer dornstange fuer ein schraegwalzwerk
FR2266557B1 (de) * 1974-04-05 1977-10-14 Valti Fabr Tubes Roulements
US3931724A (en) * 1974-08-14 1976-01-13 Mark Grigorievich Berdyansky Plug-retaining device for use in piercing and plugging mills

Also Published As

Publication number Publication date
CA1068520A (en) 1979-12-25
DE2652759C3 (de) 1980-05-22
US4149396A (en) 1979-04-17
FR2370532A1 (fr) 1978-06-09
IT1087783B (it) 1985-06-04
DE2652759A1 (de) 1978-05-18
DE2652759B2 (de) 1979-06-28

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