广东工业大学 机电工程学院,广东,广州,510006
张广有(1998–),男,硕士研究生,主要研究方向为特种加工装备
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
纸质出版:2023
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张广有, 苏国康, 李佳旺, 李俊飞, 唐有贵, 张永俊. 基于FPGA的电火花线切割自整定脉冲电源的研制[J]. 广东工业大学学报, 2023, 40(5): 108-112.
Zhang Guang-you, Su Guo-kang, Li Jia-wang, et al. Development of EDM Self-adjusting Pulse Power Supply Based on FPGA[J]. 2023, 40(5): 108-112.
张广有, 苏国康, 李佳旺, 李俊飞, 唐有贵, 张永俊. 基于FPGA的电火花线切割自整定脉冲电源的研制[J]. 广东工业大学学报, 2023, 40(5): 108-112. DOI: 10.12052/gdutxb.220156.
Zhang Guang-you, Su Guo-kang, Li Jia-wang, et al. Development of EDM Self-adjusting Pulse Power Supply Based on FPGA[J]. 2023, 40(5): 108-112. DOI: 10.12052/gdutxb.220156.
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。
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.
XIAO J L. Research status and development trend of EDM pulse power supply [J]. Technology Innovation and Application, 2016, 5(36): 142.
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凡银生. 电火花加工间隙放电特性及自适应与节能脉冲电源的研究[D]. 哈尔滨: 哈尔滨工业大学, 2017: 71.
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宋恩禹. 旋转超声振动辅助电火花加工自适应脉冲电源设计与实验研究[D]. 北京: 北方工业大学, 2020.
SU G K, LI J F, ZHANG Y J, et al . Two-way synchronous wire EDM machine for stress groove of connecting rod [J ] . Journal of Mechanical and Electrical Engineering, 2020, 37(8): 931-935.
潘红伟. 基于 FPGA 的往复走丝电火花线切割脉冲电源及高效加工研究[D]. 南京: 南京航空航天大学, 2018.
PURI A B, BHATTACHARYYA B. An analysis and optimization of the geometrical inaccuracy due to wire lag phenomenon in WEDM [J]. International Journal of Machine Tools and Manufacture, 2013, 2(43): 151-159.
孙贺龙. 电火花小孔加工间隙状态检测及伺服控制系统研究[D]. 哈尔滨: 哈尔滨工业大学, 2017.
GUAN L L, JIANG Y, ZHAO W S, et al . Design of a new wirecut electrical discharge machining pulse power [J ] . Modern Manufacturing Engineering, 2019, 41(9): 94-99.
WANG L, LIAN H S. Development of pulse power supply of insulated ceramics based on FPGA [J]. Machine Tool and Hydraulics, 2021, 49(19): 88-93.
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