广东工业大学学报 ›› 2023, Vol. 40 ›› Issue (05): 108-112.doi: 10.12052/gdutxb.220156

• 综合研究 • 上一篇    

基于FPGA的电火花线切割自整定脉冲电源的研制

张广有, 苏国康, 李佳旺, 李俊飞, 唐有贵, 张永俊   

  1. 广东工业大学 机电工程学院, 广东 广州 510006
  • 收稿日期:2022-10-17 发布日期:2023-09-26
  • 通信作者: 苏国康(1994-),男,博士研究生,主要研究方向为特种加工工艺及装备,E-mail:su_guokang@163.com;张永俊(1965-),男,教授,博士,主要研究方向为特种加工工艺与设备,E-mail:yjzhang@gdut.edu.cn
  • 作者简介:张广有(1998-),男,硕士研究生,主要研究方向为特种加工装备
  • 基金资助:
    广东省教育部产学研结合项目(2010B090400381)

Development of EDM Self-adjusting Pulse Power Supply Based on FPGA

Zhang Guang-you, Su Guo-kang, Li Jia-wang, Li Jun-fei, Tang You-gui, Zhang Yong-jun   

  1. School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2022-10-17 Published:2023-09-26

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摘要： 针对现有线切割脉冲电源对放电状态检测能力不足、输出具有滞后性等问题，研制了基于现场可编程门阵列 (Field Programmable Gate Array, FPGA) 的电火花线切割自整定脉冲电源。该电源将放电状态检测模块和波形调整模块集成在FPGA内部，避免了信号在不同器件间传输的延迟。通过高速A/D采样精准识别每个脉冲的放电情况，并根据不同放电状态实时调整脉冲输出频率，抑制有害放电状态，提高有效放电脉冲的比例。实验结果表明：与采用等频率脉冲电源加工相比，自整定脉冲电源有效提高了连杆双向同步切槽机床的加工效率。该脉冲电源促进了往复走丝线切割机床向高效节能和自动化方向发展。

关键词: 电火花线切割, 脉冲电源, 自整定, 现场可编程门阵列

Abstract: Aiming at the problems such as insufficient ability to detect discharge state and hysteresis of output of existing wire-cut pulse power supply, a self-adjusting pulse power supply based on FPGA is developed. The power supply can accurately identify the discharge state of each processing pulse by high-speed A/D sampling. By adjusting the pulse output frequency in real time according to different discharge states, the harmful discharge state can be suppressed and the effective discharge pulse ratio can be improved. The experimental results show that the machining efficiency of the Connecting Rod Cutting machine is improved by using the self-tuning pulse power supply, compared with that by using the constant frequency pulse power supply. The pulse power supply promotes the development of the reciprocating wire cutting machine to high efficiency, energy saving and automation.

Key words: electrical discharge wire cutting, pulse power supply, self-adjusting, field programmable gate array

中图分类号: 

  • TG661
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