JB-T 10270-2001 数控机床直流伺服驱动单元 通用技术条件

ICS25.040.20J50JB/T10270－2001数控机床直流伺服驱动单元通用技术条件GeneralspecificationforD.C.servodriveunit2001-06-04发布2001-10-01实施中国机械工业联合会发布()I前言1范围····················································································································································································································12引用标准·········································································································································································································13定义····················································································································································································································24技术要求·········································································································································································································45试验方法·········································································································································································································86检验规则·······································································································································································································147标志、包装、运输和贮存···································································································································································158质量保证要求·····························································································································································································16附录A（标准的附录）电磁兼容性试验方法···························································································································17附录B（标准的附录）可靠性试验方法······································································································································19JB/T10270－2001目次()II前言数控机床用直流伺服驱动单元已被广泛应用于数控机床、工业机器人及军工等领域。在分类上，按其闭环特点，有只带速度闭环的，也有速度闭环和位置闭环都具备的。它们品种繁多，但却没有相应的国际标准及国外先进国家标准。本标准编写目的旨在使国内产品向国际水平靠拢，并能指导行业生产。本标准根据JB/T8832—1999《机床数字控制系统通用技术条件》要求，参考国际著名大公司的产品样本并结合我国企业生产情况编制的。本标准的附录A、附录B都是标准的附录。本标准由全国工业自动化系统与集成标准化技术委员会提出并归口。本标准起草单位：北京机床研究所。本标准主要起草人：张德生、厉承兆。本标准于2001年6月首次发布。本标准委托北京机床研究所负责解释。JB/T10270－200111范围本标准规定了数控机床用直流伺服驱动单元的技术要求、试验方法、检验规则、标志、包装、运输和贮存。本标准适用于对各类数控机床用直流伺服电动机进行控制的各种直流伺服驱动单元。其他用途的直流伺服驱动单元亦可参照执行。2引用标准下列标准所包含的条文，通过在本标准中引用而构成为本标准的条文。本标准出版时，所示版本均为有效。所有标准都会被修订，使用本标准的各方应探讨使用下列标准昀新版本的可能性。GB191—2000包装储运图示标志（eqvISO780∶1997）GB/T2423.3—1993电工电子产品基本环境试验规程试验Ca：恒定湿热试验方法（eqvIEC60068–2–3∶1984）GB/T2423.5—1995电工电子产品环境试验第二部分：试验方法试验Ea和导则：冲击（idtIEC60068–2–27∶1987）GB/T2423.10—1995电工电子产品环境试验第二部分：试验方法试验Fc和导则：振动（正弦）（idtIEC60068–2–6∶1982）GB4208—1993外壳防护等级（IP代码）（eqvIEC529∶1989）GB/T4588.2—1996有金属化孔单双面印制板分规范（idtIEC/PQC90∶1990）GB/T4588.4—1996多层印制板分规范（idtIEC/PQC91∶1990）GB4824—1996工业、科学和医疗（ISM）射频设备电磁骚扰特性的测量方法和限值GB/T5080.7—1986设备可靠性试验恒定失效率假设下的失效率与平均无故障时间的验证试验方案（idtIEC605–7∶1978）GB/T5226.1—1996工业机械电气设备第一部分：通用技术条件（eqvIEC204–1∶1992）GB15760—1995金属切削机床安全防护通用技术条件GB17625.1—1998低压电气及电子设备发出的谐波电流限值（设备每相输入电流≤16A）（eqvIEC61000–3–2∶1995）GB/T17626.2—1998电磁兼容试验和测量技术静电放电抗扰度试验（idtIEC61000–4–2∶1995）GB/T17626.4—1998电磁兼容试验和测量技术电快速瞬变脉冲群抗扰度试验中国机械工业联合会2001-06-04批准中华人民共和国机械行业标准数控机床直流伺服驱动单元通用技术条件GeneralspecificationforD.C.servodriveunitJB/T10270－20012001-10-01实施JB/T10270－20012（idtIEC61000–4–4∶1995）GB/T17626.5—1999电磁兼容试验和测量技术浪涌（冲击）抗扰度试验（idtIEC61000–4–5∶1995）GB/T17626.11—1999电磁兼容试验和测量技术电压暂降、短时中断和电压变化抗扰度试验（idtIEC61000–4–11∶1994）IEC61491∶1995工业机械电气设备控制与驱动装置间实时串行通信数据链路3定义本标准采用下列定义。3.1直流伺服驱动单元当数控机床以直流伺服电动机作为伺服传动部件时，所对应的直流伺服电动机的控制装置即为直流伺服驱动单元，以下简称为伺服单元。3.2直流伺服驱动装置由直流伺服单元和直流伺服电动机连接在一起构成直流伺服驱动装置，以下简称为伺服装置。3.3额定输出容量伺服装置在额定负载、额定转速下工作，伺服单元在长期连续运行而不发生报警的状态下，伺服单元能连续输出的昀大功率称为额定输出容量。3.4转速变化率（静差率）伺服装置在某一给定转速下，负载由空载增加到连续工作区中规定的该转速下昀大负载时，其转速变化的相对值称为转速变化率（静差率）S。用百分数表示时：%100(%)010×−=nnnS……………………………………（1）式中：n0——空载下的转速；n1——负载下的转速。3.5调速范围（调速比）调速范围D是指伺服装置在调速系统时，当电动机轴上施加昀高转速时允许的昀大负载且转速变化率S不大于规定值时，昀高转速nmax和昀低转速nmin之比。调速范围用式（2）计算：minmaxnnD=……………………………………………（2）3.6稳速精度伺服装置在额定转速、规定负载条件下连续运行时，当电源电压变化，或环境温度变化，或电源电压不变、环境温度不变但连续运行若干小时，电动机实测转速与额定转速间昀大差值的绝对值与额定转速的百分比分别叫做电压变化的稳速精度、温度变化的稳速精度、时间变化的稳速精度。则稳速精度δ（%）：%100||(%)ee×−=nnniδ……………………………………（3）式中：ni——实测转速；ne——额定转速。JB/T10270－200133.7静态刚度具有位置闭环的伺服装置处于空载零速工作状态，对电动机轴端的正转方向或反转方向施加连续转矩T0，同时测出轴的转角偏移量θ∆，则θ∆=0T静态刚度…………………………………………（4）本标准规定转角采用分为单位，则静态刚度的单位为N·m/(′)。3.8稳定性它表示伺服装置抵抗转矩负载扰动的能力。一般以装置稳定运行中突加阶跃负载F后的动态过程作为典型扰动过程（见图1）。3.8.1动态速降当伺服装置稳态运行时，对电动机突然施加转矩负载后所引起的转速昀大降落Δnmax与原稳态值nw1的比叫动态降落。伺服装置随后又逐渐达到新的稳态值nw2，而（nw1–nw2）就是装置在该扰动作用下的稳态降落。伺服装置突加负载扰动时的动态降落的相对值称为动态速降ΔZ（%）。%100(%)1wmax×∆=∆nnZ……………………………………（5）3.8.2恢复时间在新的稳态值附近取原稳态值的±1%范围作为允许误差带，从阶跃扰动作用开始到转速基本上恢复稳态，进入并不再超出该误差带的所需昀小时间，定义为恢复时间，用tf表示（见图1）。图1突加负载的时间响应曲线3.9跟随性在给定信号变化作用下伺服装置的转速输出量变化的情况用跟随性指标来描述，在给定信号阶跃变化下的过渡过程又称阶跃响应。由以下三条来表示（见图2）。3.9.1上升时间tr上升时间tr表示转速输出量从零起第一次上升到稳态值nw的90%所经过的时间，它表示动态JB/T10270－20014响应快速性。3.