According to the resonance of mechanical machining,the relationship between the spindle speed of lathe and the surface quality of the workpieces was studied on turning a long and thin axis on the lathe.
从机械加工中共振的角度出发,研究细长轴车削加工时车床主轴转速与工件表面质量的关系;并以CA6140车床为例,讨论刚性主轴的临界转速,提出细长轴车削加工时车床主轴的最佳转速范围,避开共振区,从而提高工件的加工精度,保证工件的表面质量。
The calculating formulas about the limitedcutting width blim versus the spindle speed forregenerative chatter system are derived.
本文推导了再生型切削颤振系统极限切削宽度随机床主轴转速变化的理论计算公式,提出了机床切削系统稳定性极限预测方法,并就试验系统的切削稳定性极限进行了预测,实测结果表明,试验结果与预测结果基本相符。
The limit cutting depth of the machining system with optimal controlling spindle speed is studied by experiments.
对优控主轴转速系统的极限切削深度进行了试验考证。
Owing to that the main shaft speed and the beating speed of reed can not attain the normal values at setting - on, the warp tension and the beating force of the reed can neither reach the normal level.
织机开关车时由于主轴转速、钢筘打纬速度达不到正常数值,使经纱张力及钢筘打纬力达不到一定的正常数值,以致打纬过程中经纬纱线相对滑移量比织机正常运转时的数值小、共同移动量比正常运转时的数值大,所形成的织物达不到正常的纬密,在织物上产生横档疵点。
The influence of main technique parameters in the forming process is researched, such as percentage reduction, feed rate and main shaft speed.
铝合金轮毂旋压技术是近几年才发展起来的车轮成形新工艺方法,运用刚塑性有限元软件DEFORM 3D对铝合金轮毂旋压成形过程进行数值模拟,考察了不同减薄率、进给率和主轴转速等主要工艺参数对成形过程的影响规律,通过综合分析数值模拟计算的结果,得出一组较合理的工艺参数,用试验验证了分析结果,可以为旋压铝合金轮毂的实际生产提供理论指导。
This design is rebuilding it,with the core of 8031 single chip computer,controlling its oil injection count and the drive shaft rotation speed.
现对其进行技术改造,以8031单片机为核心,对喷油泵试验台的喷油计数和主轴转速进行控制。