Punch die module of stator punching sheet

A technology of stator punching and punching die, which is applied in the manufacture of stator/rotor body, etc., which can solve the problems of adverse effects on motor performance, increased core loss, labor and time-consuming cleaning, etc.

Active Publication Date: 2012-01-11
上海电气集团上海电机厂有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this way of avoiding the problem will cause the coil insulation layer to be easily damaged by the sharp-edged notch when inserting the wire in the subsequent process, which will affect the final quality of the entire motor
[0005] In addition, there is another way to grind the notch into rounded corners after the iron core is laminated in the post-process. The performance of the motor is adversely affected

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Punch die module of stator punching sheet
  • Punch die module of stator punching sheet
  • Punch die module of stator punching sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The stator stamping die module of the present invention includes an upper module and a lower module 20 .

[0019] Among them, such as Figure 2 to Figure 5 As shown, the upper module is divided into a cutting punch 11 and a groove punch 12. And as figure 1 As shown, the lower module 20 has a cutting die 21 and a groove-shaped die 22 .

[0020] Please refer to figure 1 and figure 2 Shown, the cross-section of the grooved punch 12 and the grooved die 22 are rounded at the two corners of the bottom, such cross-sectional shape makes the notch angle of the stator groove 301 punched out be rounded (as Figure 7 shown). recombine figure 1 and Figure 5 As shown, the shape of the slitting punch 11 and the slitting die 21 is a flat rectangular shape.

[0021] Another example figure 1 As shown, the slitting die 21 and the groove-shaped die 22 (viewed from the upper module, that is, the slitting punch 11 and the groove-shaped punch 12) are separated by a certain distance...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a punch die module of a stator punching sheet, comprising an upper module and a lower module, wherein the upper mould comprises a slitting terrace die and a groove-shaped terrace die which are arranged at intervals, wherein the groove-shaped terrace die is used for punching a notch angle of the stator into a round angle; and the lower module is provided with a slitting cavity die and a groove-shaped cavity die which are arranged at intervals and correspond to the slitting terrace die and the groove-shaped terrace die, wherein the slitting terrace dies and the slittingcavity dies are of a flat rectangle shape. The modules are mounted on the die, then can punch off a piece of slitting scrap material while punching the stator groove shape on the die, and a tip angleconnected to the splitting scrap material falls off together with the slitting scrap material, thereby avoiding the generation of metal scrap during punching the stator groove shape and finally improving the quality of the stator and the efficiency of punching groove of the stator punching sheet.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to the technical field of manufacturing stators and rotors of motors, and relates to a stator punching die module for punching out stator punching sheets from a circular sheet. Background technique [0002] In the manufacture of motor stators and rotors, the stator and rotor are punched out on a wafer. In order to avoid damage to the insulation layer of the coil by the stator notch when inserting the wire in the subsequent process, when designing the stator punching structure, the notch angle at the stator notch is required to be rounded. [0003] In the existing die module structure for stator punching, the groove-shaped cutting edge has rounded corners at the notch, and the structure of cutting the inner circular cutting edge is an inclined-plane linear cutting structure. In this way, after the mold punches out the rounded corners of the notch on the wafer, it will leave redundant...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/02
Inventor 张帆詹顺余唐群花
Owner 上海电气集团上海电机厂有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap