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JPS55162853A - Apparatus for manufacturing molded commutator - Google Patents

Apparatus for manufacturing molded commutator

Info

Publication number
JPS55162853A
JPS55162853A JP7004279A JP7004279A JPS55162853A JP S55162853 A JPS55162853 A JP S55162853A JP 7004279 A JP7004279 A JP 7004279A JP 7004279 A JP7004279 A JP 7004279A JP S55162853 A JPS55162853 A JP S55162853A
Authority
JP
Japan
Prior art keywords
bar
commutator
correcting
cross sectional
sectional shape
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
JP7004279A
Other languages
Japanese (ja)
Inventor
Masakuni Kamo
Moriji Kamoshita
Kiyoshi Onogawa
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 JP7004279A priority Critical patent/JPS55162853A/en
Publication of JPS55162853A publication Critical patent/JPS55162853A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/06—Manufacture of commutators

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

PURPOSE:To align the compressing forces and positions in inserting commutator bars into a molding tool and to increase the yielding rate of material by cutting hoop shaped bar into a specified length, and forming the commutator bars by correcting the cross sectional shape by correcting molds. CONSTITUTION:A hoop shaped bar for a commutator bar is formed by drawing round wire copper with a die and the like. The cross sectional shape of said hoop shaped bar may be asymmetric and the bar may have unwanted projections 6. Therefore, the bar is cut into a specified length, and a formed commutator bar 2' is held between correcting molds 8 and 8' and the cross sectional shape is corrected to the specifications. In this constitution, the compressing forces and positions can be aligned in inserting the commutator bar 2 between the projections formed on the inner surface of the molding tool, and the yield rate of the commutator bar material can be increased.
JP7004279A 1979-06-06 1979-06-06 Apparatus for manufacturing molded commutator Pending JPS55162853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7004279A JPS55162853A (en) 1979-06-06 1979-06-06 Apparatus for manufacturing molded commutator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7004279A JPS55162853A (en) 1979-06-06 1979-06-06 Apparatus for manufacturing molded commutator

Publications (1)

Publication Number Publication Date
JPS55162853A true JPS55162853A (en) 1980-12-18

Family

ID=13420120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7004279A Pending JPS55162853A (en) 1979-06-06 1979-06-06 Apparatus for manufacturing molded commutator

Country Status (1)

Country Link
JP (1) JPS55162853A (en)

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