电机定子转子片套冲级进冲压模设计

摘 要

设计题目来源于拥有七十多年电机生产历史的湖南湘电集团电机事业部生产现场。

冲压件——电机定子片与转子片采用的材料是电工用的硅钢片。

本设计对模具设计思路以及结构特点进行了较全面的论述。结合模具发展现状以及

冲压模具设计的主要技术，对定子片与转子片进行了较详细的工艺分析；进行了冲压力、压力中心、模具工作部分尺寸等冲压工艺计算；对卸料装置、定位装置、导料装置等模具结构形式进行了选择；根据工艺计算结果以及模具结构，对模具主要零部件进行了设计；对压力机进行了合理选择。

由于电机定子片、转子片结构复杂，对精密度要求较高，在设计过程中充分考虑了

定子片叠装铆接孔与中心轴孔的对称度要求，以及材料的平整度和模具的工作强度。采用了七工位排样设计：工位①为冲导正钉孔、定子片4个安装孔、转子片各槽孔及中间孔；工位②为校平工位；工位③为转子片外形落料；工位④为冲定子片内形槽孔；工位⑤为空工位; 工位⑥为定子片两端外形圆弧冲切；工位⑦为定子片与本体冲切分离。该级进模的主要功能是将定子片与转子片同时冲出，并实现材料的高效利用。

在模具的结构方面主要有如下特点：一是模具导料系统设计了双侧导板机构和钢珠

弹顶，带料在导板内侧连续送进，与钢珠弹顶中机构的钢珠成点接触，使带料在高速、连续的送进冲压中实现材料的平滑移动；二是模具中各凸模的导向精度由卸料板来保证。为了保证卸料板的运动精度，在卸料板与凸模固定板之间设置了对称分布的4个辅助内导柱内导套；三是在模具底面转子片冲切落料型孔部位设计了4个螺孔，用以固定收集落料后的转子片装置，以避免与其他废料混合。本模具与工步为80mm的辊式自动送料机进行配合送料，提高了生产自动化程度和送料定距的精度，从而实现了高质量、高效率的生产。

关键词：定子片 转子片 级进模 多工位 冲裁

ABSTRACT

The design topic mainly originates from the production frontline in Generator

Manufacturing Group of Xiangtan Electric Company, which has 70 years in the line of generator manufacturing. The material the stator and rotor plate use is electrical silicon steel sheet.

The full text is to express the design idea and structural characteristics in detail；Here are

the main context: Though Combining the current development situation of stamping die ,with the main technical of stamping die design; we focus on the motor stator and rotor plate to do the process analysis; doing the stamping process calculation, including the punching pressure, pressure center and so on; analyzing the reason of selecting the unloading device, positioning device, a material guide device of die structure and so on; describing the process of choose the right and reasonable press machine.

Because of the stator and rotor plate are high complex and precise parts in the motor, so

after careful and full consideration of the requirements of the place relationship between the stator lamination riveting hole and the hole of center axis, material flatness and die work intensity, we draw a seven station layout: Station 1—piercing pilot hole, 4 stator mounting holes, and the middle hole; Station 2—shool ping station; Station 3—rotor shape blanking station; Station 4—punching a stator inner slotted hole;Station 5—the air station ;Station 6—the outside shape arc of the stator cutting;Station 7—separation of stator plate and body. The main function of the progressive model is getting the motor stator and rotor plate out at one time，reaching the goal of the utter use of material.

The main characters of the progressive mold structure:

1. In the material guide system , bilateral plate mechanism and steel ball are included ,

with material in the plate medial continuous feeding, and the steel balls body point contacting with material, so that the strip can continuous to achieve smooth movement at high speed in the high punching stamping mold.

2. The accuracy of each punching die in the mold can ensured by the stripper plate.In

order to ensure the stripper plate motion accuracy , 4 auxiliary guide pillar and guide sleeve are distributed between the stripper plate and punching die fixing board .

3. There are 4 screw holes in the bottom surface of the mold rotor punching blanking

hole site , and the screw holes are used for fixing the collection after the blanking rotor device, in order to avoid mixing with other waste.

The motor should be equipped with roller type automatic feeding machine in order to increase the automation level and feeding distance accuracy, realizing high quality, high efficient production.

Keywords: stator plate rotor plate progressive punching die multi-station punching

目 录

第一章 前 言 ...............................................................................................- 1 -

1.1 概述 ........................................................................................................................ - 1 -

1.2 冲压技术的进步 .................................................................................................... - 1 -

1.3 模具的发展与现状 ................................................................................................ - 2 -

1.4 模具CAD/CAE/CAM技术 .................................................................................. - 4 -

1.5 课题研究目标、拟解决的关键问题 .................................................................... - 5 -

1.6 课题创新 ................................................................................................................ - 6 -

第二章 零件的工艺分析 .............................................................................................................- 7 -

2.1 冲件尺寸 .................................................................................................................. - 7 -

2.2 工件材料分析 .......................................................................................................... - 8 -

2.3 工件结构分析 .......................................................................................................... - 8 -

2.4 工件精度分析 ...... …… 此处隐藏：12247字，全部文档内容请下载后查看。喜欢就下载吧 ……