DE3125462C2 - - Google Patents

Info

Publication number
DE3125462C2
DE3125462C2 DE19813125462 DE3125462A DE3125462C2 DE 3125462 C2 DE3125462 C2 DE 3125462C2 DE 19813125462 DE19813125462 DE 19813125462 DE 3125462 A DE3125462 A DE 3125462A DE 3125462 C2 DE3125462 C2 DE 3125462C2
Authority
DE
Germany
Prior art keywords
workpiece
mandrel
projections
release unit
pressed
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.)
Expired
Application number
DE19813125462
Other languages
German (de)
English (en)
Other versions
DE3125462A1 (de
Inventor
Hisanobu Kanamaru
Akira Katsuta Jp Tohkairin
Takuzo Hitachi Jp Kurosawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to DE19813125462 priority Critical patent/DE3125462A1/de
Publication of DE3125462A1 publication Critical patent/DE3125462A1/de
Application granted granted Critical
Publication of DE3125462C2 publication Critical patent/DE3125462C2/de
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/40Expansion mandrels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/003Work or tool ejection means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
DE19813125462 1981-06-29 1981-06-29 Innen-einspannvorrichtung fuer werkzeugmaschinen Granted DE3125462A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813125462 DE3125462A1 (de) 1981-06-29 1981-06-29 Innen-einspannvorrichtung fuer werkzeugmaschinen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813125462 DE3125462A1 (de) 1981-06-29 1981-06-29 Innen-einspannvorrichtung fuer werkzeugmaschinen

Publications (2)

Publication Number Publication Date
DE3125462A1 DE3125462A1 (de) 1983-01-13
DE3125462C2 true DE3125462C2 (enrdf_load_stackoverflow) 1987-09-17

Family

ID=6135597

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813125462 Granted DE3125462A1 (de) 1981-06-29 1981-06-29 Innen-einspannvorrichtung fuer werkzeugmaschinen

Country Status (1)

Country Link
DE (1) DE3125462A1 (enrdf_load_stackoverflow)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1115393A (fr) * 1954-12-13 1956-04-23 Renault Mandrin extensible
US3033597A (en) * 1960-08-08 1962-05-08 Frederick L B Miller Means for mounting and dismounting gears and the like on shafting
US3911718A (en) * 1974-06-12 1975-10-14 Robert E Requarth Hydraulic ejection device
GB2045123B (en) * 1979-02-21 1982-12-08 British Steel Corp Mandrels

Also Published As

Publication number Publication date
DE3125462A1 (de) 1983-01-13

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition