公开(公告)号：US20140083980A1

公开(公告)日：2014-03-27

申请号：US13935752

申请日：2013-07-05

Applicant: Industrial Technology Research Institute

Inventor： CHAO-CHUANG MAI ,  CHIN-HUI CHEN ,  CHIH-PING CHENG ,  DER-SHUEN CHEN ,  MING-JI CHEN

IPC: B23H7/20 ,  B23H1/02

CPC classification number: B23H7/20 ,  B23H1/022 ,  B23H7/04

Abstract: An apparatus for electrical discharge machining modulation control includes an EDM module, an open-circuit voltage modulation module, a reference-voltage modulation and judgment module, a database, and a control unit. The control unit selects a reference voltage, and an open-circuit voltage corresponding to characteristics of a workpiece from the database, and generates and transmits a second control signal to the open-circuit voltage modulation module for modulating the open-circuit voltage, and a third control signal to the reference-voltage modulation and judgment module for modulating the reference voltage utilised to determine if the ignition happened. The open-circuit voltage modulation module receives a first control signal periodically transmitted from the control unit for providing the open-circuit voltage to the EDM module. The reference-voltage modulation and judgment module performs an arc voltage measurement procedure, then the control unit determines the open-circuit voltage and the reference voltage.

Abstract translation: 放电加工调制控制装置包括EDM模块，开路电压调制模块，参考电压调制和判断模块，数据库和控制单元。 控制单元从数据库中选择与工件特性相对应的基准电压和开路电压，并且生成并向开路电压调制模块发送第二控制信号以调制开路电压，以及 参考电压调制和判断模块的第三控制信号，用于调制用于确定点火是否发生的参考电压。 开路电压调制模块接收从控制单元周期性发送的用于向EDM模块提供开路电压的第一控制信号。 参考电压调制和判断模块执行电弧电压测量程序，然后控制单元确定开路电压和参考电压。