JPS5746651A - Manufacture of stator iron core for motor - Google Patents

Manufacture of stator iron core for motor

Info

Publication number
JPS5746651A
JPS5746651A JP11976280A JP11976280A JPS5746651A JP S5746651 A JPS5746651 A JP S5746651A JP 11976280 A JP11976280 A JP 11976280A JP 11976280 A JP11976280 A JP 11976280A JP S5746651 A JPS5746651 A JP S5746651A
Authority
JP
Japan
Prior art keywords
iron core
pressing
axial direction
bolt hole
circumference
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
JP11976280A
Other languages
Japanese (ja)
Inventor
Takeshi Kumagai
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 JP11976280A priority Critical patent/JPS5746651A/en
Publication of JPS5746651A publication Critical patent/JPS5746651A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

PURPOSE:To manufacture a stator iron core causing no looseness of bolts without increasing the number of processes by pressing the circumference of a bolt hole penetrated in the axial direction with welding pressure larger than that to the other parts in a process pressing a laminated iron core in the axial direction. CONSTITUTION:After forming a laminated iron core 4 by stacking iron core plates punched in predetermined shape, a mandrel 14 is inserted in the inside diameter section 4a of the iron core and a pressing ring 12 is also closely attached to the end surface of the iron core through a surface pressing plate 13 and a pressure treatment is done by applying welding pressure P2 to the axial direction. Furthermore, during the same process, a pressure treatment is applied to the circumference of a bolt hole 9 provided by penetrating the bolt hole 9 in the axial direction of the iron core 4 by a pressing segment 11 with welding pressure P1 greater than P2 and the circumference d2 of the bolt hole 9 is formed in a nearly plastic deformation state. After that, the side surface of the laminated iron core 4 is welded for integration. In this way, the quality of a product can be stabilized without increasing the number of processes.
JP11976280A 1980-09-01 1980-09-01 Manufacture of stator iron core for motor Pending JPS5746651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11976280A JPS5746651A (en) 1980-09-01 1980-09-01 Manufacture of stator iron core for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11976280A JPS5746651A (en) 1980-09-01 1980-09-01 Manufacture of stator iron core for motor

Publications (1)

Publication Number Publication Date
JPS5746651A true JPS5746651A (en) 1982-03-17

Family

ID=14769541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11976280A Pending JPS5746651A (en) 1980-09-01 1980-09-01 Manufacture of stator iron core for motor

Country Status (1)

Country Link
JP (1) JPS5746651A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104393695A (en) * 2014-11-21 2015-03-04 合肥恒大江海泵业股份有限公司 Water filling type submersible motor with improved stator iron core pressing rings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104393695A (en) * 2014-11-21 2015-03-04 合肥恒大江海泵业股份有限公司 Water filling type submersible motor with improved stator iron core pressing rings

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