摘要
大型X型混流式水轮机叶片的五轴联动数控加工技术包括叶片数控加工主要工艺过程中，叶片毛坯三维型面测量、计算机辅助自动余量分布计算、叶片加工定位基准与夹具设计、加工区域划分和加工刀具选择，以及叶片精加工后的型面检测等技术。还包括叶片计算机仿真加工过程中，有关五轴刀位计算及刀具干涉检查计算、切削图形仿真及干涉检查、机床仿真及碰撞检查，以及后置处理和加工程序生成等技术。这些技术已成功用于三峡电站Φ3. 3m转轮叶片数控加工。
Abstract: The CNC machining technology with 5-axis simultaneous operation for large-size X shape blade of francis hydraulic turbine is presented in this paper. The machining technique the blade, the 3D measure of blade casting, computer-aided distributed calculating of excess material on the blades, position, setup method and fixture design, subdividing the area machined and selecting cutter, and detecting technique for fine machining of the blade are introduced. The calculating of 5-Axis cutter position and cutter interference detecting, simulation of cutting image and gouges interference checking, simulation of machine-tool moving and collision checking, and post processing and working procedure generating etc. are expatiated. Above technology has been successfully applied in CNC machining of the blade of hydraulic turbine with 3.3 m in diameter of runner.
出处
《兵工自动化》
2001年第3期40-43,共4页
Ordnance Industry Automation
基金
国家自然科学基金项目(59493704)
国家重点科技攻关项目(97-312-01-02)
