数控深腔加工刀具夹持技术研究

深腔零件数控精加工需要使用细长杆刀具,由于细长杆刀具使刀具系统刚性变差,易出现掉刀、断刀等问题。本文在数控加工中心机床上传统的刀具夹持方式上,结合夹头夹紧原理与ER系列弹性筒夹,应用弹性弹簧夹头式的刀柄-夹头-刀具式结构,提供了部分经验公式,合理地进行弹性夹头的设计、计算与加工,成功地将弹性弹簧夹头应用在数控中心机床上的深腔零件刀具夹持与加工。

Research on Tool Clamping Technology of CNC Deep Cavity Machining

CNC finishingofdeep cavityparts requires the use ofslender rod tool.Because the slender rod tool makes the rigidity of the tool system worse,it is easy to lose the tool,break the tool and so on.In this paper,based on the traditional tool clamping method of CNC machining center machine tools,combining the clamping principle of chuck and ER series elastic barrel clamp,the tool holder-chuck-tool structure of elastic spring chuck is applied.Some empirical formulas are provided to design,calculate and process the elastic chuck.The elastic spring chuck head is successfully applied to the clamping and machining of the deep-cavity parts of the CNC central machine tool,and the unique opinions are put forward for the research on the clamping technology of the deep-cavity machining tool.