基于LMS Test.lab的数控转台振动测试研究  

Vibrating test study of the NC rotary table based on the LMS Test.lab

作　　者：时修丽[1] 黄筱调[1] 袁鸿[1] 于春建[1] 

机构地区：[1]南京工业大学机械与动力工程学院,南京210009

出　　处：《现代制造工程》2012年第9期9-12,共4页Modern Manufacturing Engineering

基　　金：国家科技重大专项项目(2010ZX04011-032)

摘　　要：基于LMS Test.lab测试系统,根据某成形铣齿机床的加工工艺特性和技术要求,提出与其相配套的数控转台(简称转台)振动测试方案,并进行实际加工工况下振动测试。测试表明,转台的固有频率远低于加工时的激振频率;铣齿过程中转台台面周向振动位移最大,且随着进给速度的增大而增大,随着消隙蜗杆作用力增大而减小。测试结论证明了该测试方案的可行性和有效性。A vibration testing scheme is advanced for NC rotary table which matches for a certain efficiently strong force NC gear milling machine which is based on the LMS Test. lab test system and according to the processing technological property and technical requirement of the NC gear milling machine. And a vibration measurement under the actual work condition was carried on. The testing conclusion shows that natural frequency of the rotary table is substantially less than the exciting frequency of the milling machining. Vibrating displacement in the circumferential direction of the rotary table is a little bit obviously during the actual milling teeth cycle. When feed velocity is increased, the vibrating displacement will be also enlarged. Along with the preload of the brake worm increases, the vibrating displacement will let up. The conclusion of the experiment proves that the feasibility and effectiveness of the scheme for the vibrating test.

关 键 词：数控转台 LMSTest.lab系统 振动测试 消隙蜗杆作用力 进给速度 

分 类 号：TH132[机械工程—机械制造及自动化]