基于ISA总线的电火花线切割脉冲电源研究

WEDM Pulse Power Supply Based on ISA Bus

为了提高电火花加工自动化和智能化程度,更方便地实现电火花加工脉冲电源的实时控制,在现有的脉冲电源基础上开发了一种基于ISA总线的电火花脉冲电源。在系统软件中,编制了电火花加工的电参数数据库,用户能根据数据库中提供的电参数或根据用户的需求方便地设置加工电参数。在硬件系统中采用了AT89C51单片机与8253作为核心产生脉冲信号,结构简单,脉冲周期范围大。

To improve the automatization of WEDM （Wire Cut Electric Discharge Machining） and to real-time control WEDM pulse power supply, a WEDM pulse power supply based on ISA bus is put forward. In the software system, electricity parameter data-base of WEDM is designed, in which electricity parameter is set expediently according to the data in the data-base or consumer demand. In the hardware system, single-chip computer （AT89C51 ） and programmable interval timer（8253） is the major part of hardware system. This simple system can produce widespread period pulse.