M1080B无心外圆磨床改进

M1080B无心外圆磨床砂轮及导轮宽度较窄,磨削轴承套圈外圆时,磨削效率低,托板架调整较为繁琐、皮带打滑、磨损较为严重。针对上述问题,提出了相应的解决办法,提高了磨削效率。     

第十一届中国国际模具技术和设备展览会现代模具制造技术及设备评述

通过对第十一届中国国际模具技术和设备展览会中模具加工技术以及关键设备、刀具、测量仪器、模具的C如／CAE／CAM技术等的水平评述，介绍了现代模具制造技术的现状、特点和发展趋势。     

数控凸轮轴磨床加工中的仿真技术

在数控凸轮轴磨床加工中进行计算机仿真,对于检查程序错误、避免故障发生、提高加工精度、方便用户具有极为重要意义.重点介绍了全数控凸轮轴磨床加工中凸轮廓形曲线、加工曲线、速度曲线及加速度曲线的计算机仿真基本原理以及软件实现方法.     

Mathematical Modeling of the Numerical Control Cam Grinder Wheel Center Displacement and Its Application

Considering grinding a cam with numerical control(NC)cam grinder,a mathematical model should be estab- lished with the unified parameter based on the original cam-lobe lift data to describe the movement of wheel and establish the relation between the wheel center coordinate,the measuring angle and workpiece's spindle rotation angle.By analyzing,the grinding wheel can be regarded as different followers.To the planar and roller followers,different mathematical models are established, but they can be unified in Eqs.(17)of this paper with the different value of the roller radius r_1.And also the model is suit for the edged follower when assuming the roller radius r_1=0.Experimental verification was done with TKM120 CNC/CBN grinder with NC sets' interpolation according to the model,which shows that high precision parts can be manufactured and this mathemat- ical model can be practically applied for NC cam grinder.     

Mathematical Modeling of the Numerical Control Cam Grinder Wheel Center Displacement and Its Application

Considering grinding a cam with numerical control (NC) cam grinder, a mathematical model should be established with the unified parameter based on the original cam-lobe lift data to describe the movement of wheel and establish the relation between the wheel center coordinate, the measuring angle and workpiece's spindle rotation angle. By analyzing, the grinding wheel can be regarded as different followers. To the planar and roller followers, different mathematical models are established, but they can be unified in Eqs.(17) of this paper with the different value of the roller radius r1. And also the model is suit for the edged follower when assuming the roller radius r1=0. Experimental verification was done with TKM120 CNC/CBN grinder with NC sets' interpolation according to the model, which shows that high precision parts can be manufactured and this mathematical model can be practically applied for NC cam grinder.     

Design and Machining of Combination Gear Cutter Hob

ＤｅｓｉｇｎａｎｄＭａｃｈｉｎｉｎｇｏｆＣｏｍｂｉｎａｔｉｏｎＧｅａｒＣｕｔｅｒＨｏｂＧＯＮＧＺｈｅｎｑｉＣＨＡＮＧＷｅｉＧＯＮＧＨａｉｔａｏ（龚振起）（常伟）（龚海涛）（Ｄｅｐｔ．ｏｆＭｅｃｈａｎｉｃａｌＥｎｇｉｎｅｅｒｉｎｇ，ＨａｒｂｉｎＩｎｓｔ...     

轧辊凸度磨削原理分析

介绍了轧辊凸度磨削机构的构成．工作原理及凸度的实现过程．分析了凸度缺陷产生的原理及防止措施。     

大型轴承往复式双端面磨床数控系统

简要介绍了大型轴承双端面磨床的现状、存在的问题和应采取的措施;重点介绍了大型轴承往复式双端面磨床的研发情况和Powermate0数控系统及其设计编程,给出了数控系统连接图。     

基于铁谱分析系统的机床健康检测

对某机床厂的龙门导轨磨床MMA52160A利用铁谱分析技术的油样进行定期检测,及时地掌握龙门导轨磨床的磨损状况.通过实验与分析发现,在检测时间段内导轨磨床内部存在着正常磨损、切削磨损、滚滑复合磨损磨粒以及铁的氧化物,在数量上以正常磨损居多,其它类型磨粒数量较少,可以判断导轨磨床仍处于正常运行状态.实验表明,铁谱分析技术可以对机床的运行状态进行预报故障;同时,可合理地确定机床的换油周期,节省油料,做到科学润滑,以延长龙门导轨磨床的使用寿命.     

锆英石质研磨体的研制

本文通过对锆英石原料、成型工艺和烧成工艺的研究，确定了锆英石质研磨体的生产工艺。