摆线齿轮泵外转子加工工艺及主要工装DOC 49页.doc

摘要

本文就摆线的基本概念作了介绍，并阐述摆线齿轮泵中，外转子的加工工艺过程、工装设备以及成形拉刀的设计计算。摆线齿轮泵中以内转子为主动轮，外转子为从动轮，在设计中要求外转子精度高，同时考虑到经济成本，在设计加工工艺时，尽量采用既高精度又经济的方式。而且还介绍了在单件生产纲领下，进行摆线齿轮泵外转子曲面磨削的方法。确定了磨削参数及工艺装备。本加工方法具有传动链短，砂轮修磨简单，可稳定的保持加工精度。

关键词：摆线齿轮外转子；工艺；结构设计；工装设备；成形拉刀。

Abstract

This article introduced the basic concept of cycloid and cycloid gear pump described, the outer rotor of the machining process, tooling equipment and design calculation of forming broach. Within the rotor cycloidal gear pump for the driving wheel, outer rotor to the driven wheel, the rotor in the design requirements of high precision, taking into account economic costs, in the design process, try to use the high-precision and economical way. But also introduced the program in the single production under the cycloid gear pump outer rotor surface grinding method. Determine the parameters and processes of grinding equipment. This processing method has a short transmission chain, grinding wheel simple, steady and precision

Keywords: cycloidal gear outer rotor; process; structural design; tooling equipment; forming broach

目录

摘要 ................................................................... I

第1章绪论 (1)

1.1 齿轮泵概述 (1)

1.2 齿轮泵发展趋势 (1)

1.3 外转子设计的基本要求 (3)

第2章外转子的加工工艺设计 (4)

2.1 零件的分析 (4)

2.1.1 零件的作用 (4)

2.1.2 零件工艺分析 (4)

2.2 工艺规程设计 (4)

2.2.1 确定毛坯的制造形式 (4)

2.2.2 基面的选择 (5)

2.2.3 制定工艺路线 (5)

2.2.4 机械加工余量，工序尺寸及毛坯尺寸确定 (7)

第3章夹具设计 (18)

3.1 拉胎 (18)

3.1.1 问题的提出 (18)

3.1.2 定位基准的选择 (18)

3.1.3 定位误差分析 (18)

3.1.4 夹紧力 (18)

3.1.5 胎具结构 (18)

3.2 磨胎 (18)

3.2.1 问题的提出 (18)

3.2.2 定位基准的选择 (19)

3.2.3 夹具结构 (19)

3.3 磨头 (22)

3.4 打磨砂轮工具 (23)

第4章内曲面成形拉刀设计 (23)

4.1 粗拉刀设计 (23)

4.1.1 切削部设计 (23)

4.1.2 校准部设计 (29)

4.1.3 其它部分及拉刀总长度 (30)

4.1.4 拉刀强度计算及拉削力的校验 (33)

4.2 精拉刀设计 (34)

4.2.1 参数选择 (34)

F (37)

4.2.2 校核最大拉削力

m ax

4.2.3 拉刀强度校验 (37)

4.2.4 拉刀总长度L (37)

结束语 (40)

致谢 (41)

参考文献 (42)

CONTENTS Abstract........................................................................................................................................................... I I

Chapter One Introduction (1)

1.1 Gear Pump Overview (1)

1.2 Development Trend of gear pump (1)

1.3 The basic requirements of external rotor design (3)

Chapter T wo External rotor design process (4)

2.1 Parts of the analysis (4)

2.1.1 Parts of the role (4)

2.1.2 Parts Process Analysis (4)

2.2 Process planning (4)

2.2.1 Determine the form of blank manufacturing (4)

2.2.2 The choice of the base surface (5)

2.2.3 Development of process routes (5)

2.2.4 Machining allowance, process to determine the size and rough size (7)

Chapter Three Fixture Design (18)

3.1 Pull tire (18)

3.1.1 Proposed of the problems (18)

3.1.2 The choice of locating datum (18)

3.1.3 Orientation error (18)

3.1.4 Clamping force (18)

3.1.5 Mold structure (18)

3.2 Tire wear (18)

3.2.1 Proposed of the problems (18)

3.2.2 The choice of locating datum (19)