共查询到20条相似文献,搜索用时 140 毫秒
1.
针对磨损报废的进口硬质合金铣刀片,介绍了一种修磨方法。此修磨方法需要高精度修磨夹具来保证修磨精度,文中介绍了修磨专用夹具的结构及修磨过程。 相似文献
2.
3.
4.
毕兰峰 《机械工人(热加工)》2010,(14):43-45
本文主要介绍了用于汽车制造业焊装领域的机器人点焊电极的修磨,包括修磨原理,不同种类修磨机及刀头在实际应用中的优缺点,修磨程序的要点,以及修磨中出现的一些问题的解决方法。 相似文献
5.
6.
7.
8.
9.
10.
铁芯局部修磨操作法是针对大中型电机铁芯局部烧毁和表面擦伤两种常见故障的一种铁芯修复方法。介绍其修磨操作步骤,并结合案例说明修磨效果。 相似文献
11.
12.
13.
14.
对水基磨削液两种理化性能指标 (表面张力和摩擦系数 )与使用性能关系的研究表明 ,理化性能指标不能直接作为磨削液使用性能的评价指标 ,但可作为衡量其使用性能好坏的参考因素。 相似文献
15.
16.
Precision cylindrical face grinding 总被引:1,自引:0,他引:1
The mathematical models and experimental validations of precision cylindrical face grinding using a narrow ring superabrasive wheel are presented. The high pressure seal in diesel engine fuel systems demands the μm-scale form tolerance specifications and has driven the development of precision face grinding using the superabrasive wheel. Two mathematical models were developed: one was applied to predict the convex or concave face profile and another was used to simulate the abrasive trajectories, which become the cross-hatch grinding marks on the ground face. Cylindrical face grinding experiments were conducted. Experimental measurements of face profile and abrasive trajectories were used to validate the theoretical results. For high-pressure sealing surfaces, the height of face profile and grinding trajectories were two critical characteristics for design and manufacturing. Two design tools, a linear approximate solution for the profile height and an atlas for grinding trajectories, were developed to assist the selection of process parameters for the machine setup. 相似文献
17.
根据冲压模具零件图纸及技术要求进行工艺分析,通过模具工艺方案设计得出平面磨床成形磨削的加工方法和砂轮修整方法以及工艺尺寸计算,拟订平面磨形磨削工艺。同时,提出工件磨削步骤及注意事项,并对成形磨削工件进行精度检验及误差分析。实践证明:成形磨削工艺分析计算准确,公差分配合理,精度检验及误差分析有效,制造精度高。 相似文献
18.
19.
针对目前存在的磨削优化研究成果偏重于加工质量,而无法兼顾加工效率的不足,对磨削加工质量与生产效率的综合优化策略进行了研究,对外圆磨削的主要目标及影响因素进行了归纳,以常规工艺参数及零件技术要求为约束条件,将外圆磨削表面粗糙度模型与材料去除率模型有机结合后形成综合目标函数,提出了外圆磨削加工的非线性优化模型。以正交设计法的磨削试验数据为基础,通过序列二次规划算法对模型加以训练,预测出最优磨削用量,在给定的磨削条件下,获得最优磨削用量为:磨削深度ap=0.011 mm,工件线速度vw=30 m/min,纵向进给量f=20 mm/r。最后,通过随机选取的工艺参数对模型进行了试验验证,试验结果表明,模型最大预测误差不超过16%,预测结果可为实际工艺规程编制中选择最优工艺参数提供参考。 相似文献
20.
Xun Li 《机械工程学报(英文版)》2014,27(1):86-91
There is less research on vertical sculptured grinding technology. Especially in high vertical surface grinding process with the cup abrasive wheel, the thermal damage is prone to happen and undermine the grinding surface integrity. This problem limits to improve the grinding efficiency and the grinding ratio greatly. Through the analysis of vertical surface grinding process and features in depth, this paper revealed the inherent mechanism of higher grinding temperature in the process of vertical sculptured grinding using the cup wheel. Based on the previous research achievements, the grinding experiments on TC4 (Ti-6A1-4V) and GH4169 are carried out utilizing the self-inhaling internal cooling wheel. The experimental results show that the self-inhaling internal cooling wheel can efficiently reduce the grinding surface temperature. Moreover, the inherent mechanism of reducing the grinding temperature using the internal cooling method is revealed. Meanwhile, under the same grinding conditions, the grinding ratio during the experiments on GH4169 using self-inhaling internal cooling method is about 3 times as high as using conventional external cooling method. And the grinding forces can be reduced by about 20%. This research revealed the inherent mechanism of higher grinding temperature in the process of vertical sculptured grinding using the cup wheel, which provides theoretical basis for the design and application of self-inhaling internal cooling wheel. At the same time, an efficient and non-invasive surface grinding method of TC4 and GH4169 is presented. 相似文献