弧面分度凸轮机构参数化设计及NX二次开发

曹澍; 罗康; 何雪明

doi:10.13433/j.cnki.1003-8728.20200173

弧面分度凸轮机构参数化设计及NX二次开发

doi: 10.13433/j.cnki.1003-8728.20200173

江南大学机械工程学院, 江苏无锡 214122

基金项目:

国家自然科学基金项目 51975251

国家自然科学基金项目 51275210

国家自然科学基金项目 51605193

详细信息

作者简介:
曹澍(1984-), 讲师, 博士研究生, 研究方向为机械制造及其自动化, caoshumse@jiangnan.edu.cn

中图分类号: TH112.2
计量
- 文章访问数: 379
- HTML全文浏览量: 217
- PDF下载量: 35
- 被引次数: 0
出版历程
- 收稿日期: 2019-11-15
- 刊出日期: 2021-07-01

Parametric Design of Globoidal Indexing CAM Mechanism and Secondary Development of NX

School of Mechanical Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China

摘要

摘要: 为使弧面凸轮机构在设计过程中具有修改柔性, 设计周期短和高效等优点, 利用NX Open C经典应用编程接口与Microsoft visual studio(VS)实现连接, 用户可通过NX Open应用程序开发菜单、工具条、对话框等工具实现交互设计, 对话框通过调用回调函数激活相应控件, 应用程序(回调函数)通过相应的编程语言与NX Open API进行编码。基于NX软件二次开发功能, 结合VS开发一款适用于弧面分度凸轮机构快速建模的参数化设计系统, 可实现可视化交互设计。结果表明, 参数化设计后的系统极大地缩短了设计时间和减少了繁琐的重复劳动。
- 弧面凸轮 /
- NX Open C /
- 参数化设计 /
- 二次开发
Abstract: In order to make the globoidal CAM mechanism in the design process has the modification flexibility, the design cycle being short and efficient and so on, this paper uses NX Open C classic application programming interfaces (apis) and Microsoft visual studio (VS) to realize the connection, so that the user can employ the NX Open application development menus, toolbar, dialog boxes, such as tools to implement and interaction design, dialog box by calling the callback function to activate the corresponding controls, application (callback function) through the appropriate programming language and NX code Open API. Based on the secondary development function of NX computer software, a parameterization system suitable for rapid modeling of globoidal indexing CAM mechanism was developed in combination with VS to realize visual interaction design and global optimization. The results show that the system with parameterization design greatly shortens the design time and reduces the tedious repetitive work.
- loboidal CAM mechanism /
- NX Open C /
- parameterization design /
- secondary development

HTML全文

图 1 NX Open应用程序框架

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图 2 系统二次开发总流程

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图 3 系统自定义菜单

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图 4 系统对话框响应流程

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图 5 基本运动参数对话框界面

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图 6 基本几何参数对话框界面

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图 7 弧面凸轮实体对话框界面

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图 8 从动盘实体构建对话框界面

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图 9 弧面凸轮实体构建过程

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图 10 弧面凸轮机构装配模型

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表 1 凸轮机构主要几何参数

参数名称	计算公式	数值
中心距c/mm	c=r_p1+r_p2	180
许用压力角α/(°)	α=30°~40°	30
从动盘节圆半径r_p2/mm	r_p2=(ctanα)/[(ω₂/ω₁)_max+tanαcos(ϕ₀+0.5pϕ_f)]	84
凸轮节圆半径r_p1/mm	r_p1=c-r_p2	96
滚子中心角ϕ_z/(°)	ϕ_z=360/z	45
滚子半径r_f/mm	r_f=(0.5~0.7) r_p2sin(π/z)	22
滚子宽度b/mm	b=(1~1.4) r_f	24
注：ϕ₀是凸轮的设计转角；p为凸轮旋向系数；ϕ_f为凸轮摆动转角。

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