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《机械设计与制造》2020,(8)
针对现有电动缸试验测试系统不能满足电动缸特有性能的测试,且有操作比较复杂,系统不稳定等缺点。研发了一套基于PC端作为上位机,C420 CAN控制器为核心控制元器件,液压缸及工作站作为额定载荷加载装置,结合伺服驱动器的伺服电机数据采集,以及轮辐式压力传感器作为电动缸加载反馈装置的测试系统。根据对电动缸的额定载荷测试和传输效率测试的功能,开发了基于QT界面开发和C++程序语言的上位机电动缸测试系统,可实时监测电动缸的电流、电压、载荷,并根据后台数据处理计算绘制出电动缸电流、电压、载荷、传输效率的图形,作为电动缸的检测的依据。使用该测试系统对三级电动缸进行效率测试的试验验证,试验数据符合理论计算,试验方法和设备合理。该测试系统已成功用于公司新产品的测试,并为研发生产提供了重要的试验验证。 相似文献
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叙述了驾驶员座椅振动控制系统的设计,介绍了系统的方案组成及系统的硬件、软件平台.通过工控机、PCI-1720卡、PCL-836卡、伺服驱动器、伺服电机、电动缸等形成半闭环伺服控制系统,实现对驾驶员座椅的振动控制. 相似文献
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采用研华PCI-1220U运动控制卡作为伺服控制接口,工控机通过该接口控制电动助力转向器总成测试系统的伺服电机对电动助力转向器进行加载,实现电动助力转向器管柱总成(含ECU控制器)综合性能的自动测试。试验结果表明,采用PCI-1220U多功能运动控制卡,以VB6.0为软件开发平台,可满足两轴伺服电机的控制要求,实现实时运动控制。 相似文献
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基于伺服电机和PLC的工作台运动控制 总被引:2,自引:0,他引:2
以西门子S7-200PLC作为控制器,控制伺服电机带动丝杠螺母副运动,从而实现工作台的运动控制。通过合理的系统软硬件设计和控制工艺设计,利用伺服电机的高控制精度和滚珠丝杠螺母副的高传动精度,保证工作台高精度的运动控制。 相似文献
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伺服控制系统有多种控制方式,目前广泛使用的是脉冲串输出(Pulse Train Output,PTO)方式,也就是可编程逻辑控制器(Programmable Logic Controller,PLC)向伺服驱动器发高速脉冲信号控制伺服电机运动。高速脉冲信号包含速度信号和方向信号。PLC通过组态和程序控制输出端口信号,采用不同的组合方式控制伺服电机的运动方向和速度,促使伺服电机带动生产设备运动,实现对设备的控制。 相似文献
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机械手驱动控制系统的研究 总被引:1,自引:0,他引:1
本文介绍了一种机械手的电驱动系统方案,该方案采用直流伺服电机作为驱动单元.利用伺服电机驱动卡控制机械手运动,控制器采用PC机.M68HC11单片机主从控制结构,详细描述了驱动系统的硬件系统组成.软件流程。 相似文献
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Pakorn Serikitkankul Hiroaki Seki Masatoshi Hikizu Yoshitsugu Kamiya 《Precision Engineering》2007,31(3):202-209
Many applications, such as elevators, electric cars and robotic applications, require a servomotor driver capable of controlling a motor to drive its load with either positive or negative driving torque. The negative driving torque is defined as torque applied to a load in the reverse direction of motor rotation. In a servomotor driver with a switching amplifier, when the motor drives its load with negative driving torque, effects of negative driving torque might damage the servomotor driver and complicate dynamic characteristics of the servomotor system. Thus, in order to investigate effects of the negative driving torque in servomotor drivers, this paper uses the numerical simulation that combines the simulation of a control system with that of electronic circuits. The simulation results show that the negative driving torque is required for decelerating and compensating disturbance. During decelerating and compensating disturbance, the pulse-width modulation (PWM) amplifier of a servomotor driver will generate regenerative current that flows from the motor back into the power supply, and then makes the power supply voltage rise. 相似文献
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X. Zhiming C. Jincheng F. Zhengjin 《The International Journal of Advanced Manufacturing Technology》2002,20(4):270-276
This paper presents a real-time interpolation algorithm for NURBS curves. In contrast to the existing linear and circular
interpolators, the proposed interpolator can maintain small contour errors and feedrate fluctuations. Feedrate components,
acceleration components and the servomotor driving force for each axis are precalculated from the given curve shape and themachine
tool dynamic properties. As a sudden change in the geometrical properties of the tool path can increase contour errors and
cause a sudden change of driving force of each servomotor, a new strategy of variable feedrate machining based on the geometrical
properties of tool path is suggested. Real-time performance measurement of this interpolator is performed to demonstrate its
practical feasibility. 相似文献