JPS55162854A - Apparatus for manufacturing molded commutator - Google Patents

Apparatus for manufacturing molded commutator

Info

Publication number
JPS55162854A
JPS55162854A JP7004379A JP7004379A JPS55162854A JP S55162854 A JPS55162854 A JP S55162854A JP 7004379 A JP7004379 A JP 7004379A JP 7004379 A JP7004379 A JP 7004379A JP S55162854 A JPS55162854 A JP S55162854A
Authority
JP
Japan
Prior art keywords
molding tool
commutator
length
commutator bar
compressed
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
JP7004379A
Other languages
Japanese (ja)
Inventor
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 JP7004379A priority Critical patent/JPS55162854A/en
Publication of JPS55162854A publication Critical patent/JPS55162854A/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 improve the strength of the plastic molded portion by inserting a commutator bar between projections on the inner surface of a molding tool, applying pressure in the longitudinal direction of the commutator bar, and compensating the length of the commutator bar so that it becomes the same length as that of the molding tool. CONSTITUTION:The required number of commutator bars 2 are inserted between projections 13 on the inner surface of a molding tool 1 from an indexing frame at the same time. Then, the molding tool 1 is moved to a main compressing frame 25. A press head 23 is lowered, and the length a of the portion of each commutator bar 2 that has not been compressed into the molding tool 1 yet, is completely compressed into the molding tool 1. In this case, the commutator bars 2 are compressed in the axial direction by the press head 23 and a step 27 of said main compressing frame 25 at the same time, thereby the length of each commutator bar 2 is made to be the same as the length L of the molding tool 1. In this constitution, the bevelled portions d at both ends of each commutator bar 2 formed when it is cut is compensated without the dispersion in mechanical and thermal strengths.
JP7004379A 1979-06-06 1979-06-06 Apparatus for manufacturing molded commutator Pending JPS55162854A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7004379A JPS55162854A (en) 1979-06-06 1979-06-06 Apparatus for manufacturing molded commutator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7004379A JPS55162854A (en) 1979-06-06 1979-06-06 Apparatus for manufacturing molded commutator

Publications (1)

Publication Number Publication Date
JPS55162854A true JPS55162854A (en) 1980-12-18

Family

ID=13420148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7004379A Pending JPS55162854A (en) 1979-06-06 1979-06-06 Apparatus for manufacturing molded commutator

Country Status (1)

Country Link
JP (1) JPS55162854A (en)

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