文档介绍：毕业论文(设计)
题目鼠标上壳造型设计
姓名于坦
学号 0815110201
所在学院湖北工业大学商贸学院
专业班级材料成型及控制工程本科二班
指导教师梁展翅
日期 2012 年4 月 20日
摘要
鼠标上盖是流线形结构,使用二维绘图难以描述,本课题采用Pro/E软件对鼠标上盖制品及模具进行了三维造型,采用Pro/E的数值模拟技术和经验设计计算相结合的方法优化设计,同时仿真了塑料熔体在型腔内的充模流动以及冷却分析过程,预测了缺陷产生的临界条件,优化了工艺方案及工艺参数,,为更加高速、快捷的造型、.
数字式工频交流电参数多用表可实现同时对一路工频交流电的各种功率值、电压有效值、、运算功能,以软件设计代替硬件电路,采用交流电采样方式,用软件计算分析出各种有效值、有功功率、无功功率、功率因数等参数,使硬件电路大大简化.
本系统利用了数字电位器调节准确方便,使用寿命长,受外部环境影响小,性能稳定等特点,设计的电路具有自校准、量程可自动转换、测量精度高、性能稳定等特点.
关键词: 注塑模具数值模拟鼠标上盖
Abstract
The top cover of mouse is streamline. So it is difficult to describe by two-dimensional drawing. The product and mold of the top cover of mouse were 3D designed by Pro/E software. An optimized design was made by numerical simulation techniques of Pro/E and experience. The plastic melt flow and cooling process were simulated for forecasting critical conditions of errors. Technical parameters and processes have been optimized. The possibility of errors was reduced. Solid parameters are used which provide a practical approach for more rapid and efficient forms .The model data can be used directly for numerically controlled machine tools with 3D processing.
Digital Multimeter-frequency alternating current parameters can be achieved along the way at the same time-frequency alternating current value of the various power, voltage rms, current rms measurement parameters. It uses single-chip control, computing features to the software instead of hardware circuit design, the use of alternating current sampling methods, using a variety of calculation and analysis software, RMS, active power, reactive power, power factor and other parameters, so that greatly simplify the hardware circuit .
The system uses a digital potentiometer to facilitate accurate adjustment, long service life, the impact of the external environment by a small, stable performance characteristics of the circuit design with self-calibration, range c