精密微塑性成形系统的研制  

Research on the precision microforming apparatus

作　　者：王春举[1] 曲东升[2] 周健[1] 单德彬[1] 郭斌[1] 孙立宁[2] 

机构地区：[1]哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨150001 [2]哈尔滨工业大学机器人研究所,黑龙江哈尔滨150001

出　　处：《锻压技术》2005年第3期56-59,共4页Forging & Stamping Technology

基　　金：国家"863"计划MEMS重大专项(2002AA404060和2004AA4042606);国家自然科学基金(502750033);哈尔滨工业大学跨学科交叉性研究基金(HIT.MD2001.15)资助项目

摘　　要：随着微型零件尺寸的减小,对成形设备提出了更高要求,传统的塑性成形设备难以在小行程下实现载荷和位移的精确控制。针对微成形的特点研制了精密微塑性成形系统,设计了宏动/微动相结合的驱动系统,微动部分使用压电陶瓷作为驱动器,宏动部分采用精密丝杠旋钮来实现,借助数据采集系统进行数据的实时采集和处理,使用成形工艺控制器对微成形过程进行精确控制,该系统可以对模具进行加热以实现等温成形,由温度PID控制器控制。使用该精密微塑性成形系统进行了微成形试验,所成形的微型齿轮零件质量良好。With the miniature of the micro parts, there are high requirements for the microforming apparatus. It is difficult for the traditional forming machine to realize the high control precision of load and displacement in small travel. A precision micro forming apparatus has been made using the macro/micro feeding system for the characteristics of microforming process. The piezo actuator is selected as the micro feeding actuator, and a manual screw driven bolt is selected as the macro-feeding device. A measurement system has been designed to measure results of tests and deal with the data immediately, and the high control precision is achieved by a forming process control unit. During the forming test, the whole die device is heated to carry out the isothermal forming process, and the forming temperature is controlled by a PID control unit. The microforming tests have been carried out using the apparatus, and the perfect microgears have been fabricated.

关 键 词：成形系统 微塑性 研制 数据采集系统 PID控制器 成形设备 精确控制 零件尺寸 驱动系统 压电陶瓷 精密丝杠 实时采集 成形过程 成形工艺 等温成形 成形试验 零件质量 微型齿轮 微成形 驱动器 行数据 微动 模具 

分 类 号：TG306[金属学及工艺—金属压力加工]