摘要
以JS-53A型砂布砂纸磨削试验机为物理模型建立砂布砂纸磨削试验的仿真系统。通过对磨削实验过程的运动和磨削轨迹分析,建立磨削轨迹和运动速度的数学模型,包括摆角方程、试样中心的轨迹和速度方程。使用MS-EX-CEL软件对不同齿轮传动比时的磨削轨迹和磨削速度进行仿真,得出了相应磨削轨迹曲线和磨削速度曲线、最大磨削速度的值和磨削轨迹的长度。当摆臂摆动周期是转盘转动周期的0.5或1倍时,磨削轨迹为重合的一条近似圆弧曲线,该传动比为合理值。不同的传动比时磨迹长度相差很大,因此在进行磨削对比试验时要固定传动比,即固定摆臂的摆频。
Based on a physic model formed from the JS -53A grinding test machine for emery cloth or paper, a grinding simulation system was constituted for emery cloth or paper grinding test. By analyzing the grinding system motion and the grinding trace, the mathematic models of grinding trace and motion velocity were established, which involved the equation of swing angle with time and the equations of grinding trace and grinding velocity of the center of trial bar. By means of MS - Excel software the simulation curves of grinding trace and grinding velocity were drawn, furthermore the maximum grinding velocity and the length of grinding trace were figured out. The grinding trace is an approximate round curve overlapped while the swing period of swing - ~ arm is the half or the same of period ＂of turnplate. So the reasonable transmission ratio is 0.5 or 1 from the turnplate to the eccentric axis.
出处
《金刚石与磨料磨具工程》
CAS
北大核心
2007年第5期74-77,共4页
Diamond & Abrasives Engineering
关键词
砂布
砂纸
砂带
磨削
仿真
计算机
磨迹
运动
速度
emery cloth
emery paper
emery belt
grinding simulation
computer
grinding trace
grinding velocity
