共查询到18条相似文献,搜索用时 125 毫秒
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用数控技术改造Y7125A磨齿机砂轮修整器 总被引:1,自引:0,他引:1
Y7125A磨齿机用于磨剃齿刀齿面。它利用一个大直径 ( 400)碟形砂轮的端面进行磨齿,砂轮的修整是采用一套机械式修整器,修整出的砂轮是齿条面,磨出的剃齿刀齿形是一条渐开线。为了解决齿轮剃齿后齿形产生中凹现象,降低齿轮噪音,近代齿轮都采用齿廓修形的办法。 [1]传统砂轮修整装置的弊端 国内外对齿廓修形的方法很多,目前国内较广泛采用反修砂轮的方法。如 Y7125A磨齿机上磨削修形剃齿刀时,是在机械式砂轮修整器上安装一块靠模块,以其靠模曲面来修磨砂轮去磨削剃齿刀,从而实现轮齿修形,校正齿形中凹量。但实践证明,该传… 相似文献
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谢金昌 《精密制造与自动化》1989,(2):38-40
YS 7632型成型砂轮磨齿机的砂轮修整器采用样板与补偿凸轮等结构来实现砂轮的成型修整,可用于磨削渐开线齿面的圆柱直齿轮,也可磨削齿高方向具有修形要求的直齿轮。本文主要介绍该机床的成型砂轮修整器结构、原理及调整方法。一、成型砂轮修整器成型砂轮修整器(图1采用金刚石刀架沿着正交的x、y轴运动,按1:1的仿型比修整砂轮,使砂轮截形和被磨齿轮齿槽的截形一致,在工作台的一次纵向行程中,磨削一个齿槽的两个侧面,加工余量磨削完毕,得到预定的齿轮磨 相似文献
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在大平面磨齿机上修磨齿轮刀具时,是通过砂轮修整器打制出所需砂轮截形,然后才能磨出所要求的齿轮刀具来。本文根据磨齿工作原理,针对修缘插齿刀修形时的砂轮截形进行理论研究,并给出了具体的计算方法。 相似文献
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磨床砂轮智能监测及修整系统 总被引:1,自引:0,他引:1
介绍一种具有较好通用性和实用性的砂轮智能监测及修整系统,该系统利用BP神经网络建立声发射(AE)信号、振动信号、砂轮电机功率信号与砂轮磨钝之间的非线性关系,能够根据传感器信号,自动在线监测砂轮磨钝,及时启动砂轮自动修整系统,并且通过采用CNC砂轮自动修整器,能够解决多种类型的成型砂轮的修整。 相似文献
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周福根 《精密制造与自动化》1993,(3)
采用所介绍的CNC修整器可满足双锥形砂轮在展成磨削具有复杂的齿根倒圆、齿形修形和齿顶修缘要求的高精度齿轮的要求。CNC修整器的编程不仅可采用直接输入砂轮形状参数,还可以通过与CNC控制装置相连接的计算机输入。一、传动要求的提高需要较高的齿轮轮廓精度现代化机床需要具有高的功率密度、高的 相似文献
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A new mathematical model of the dressing of grinding wheels by diamond disc dresser is developed. It predicts the dressing forces between the diamond grits of a rotating disc dresser and the grits of an alumina grinding wheel. This model is based on the fracture of grits, the fracture of the bond and the contact forces between the dresser and grits. It considers the kinematical influences and in particular speed ratio of the dressing process. Also a Weibull distribution was used to predict the probability of bond fracture. Dressing forces are measured experimentally and are compared with those calculated from the new model. Theoretical results closely match with the experimental findings. The dressing forces generated from this model provide a basis for further prediction of wheel topography and the grinding process. 相似文献
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A new mathematical model of the dressing of grinding wheels by diamond disc dresser is developed. It predicts the dressing forces between the diamond grits of a rotating disc dresser and the grits of an alumina grinding wheel. This model is based on the fracture of grits, the fracture of the bond and the contact forces between the dresser and grits. It considers the kinematical influences and in particular speed ratio of the dressing process. Also a Weibull distribution was used to predict the probability of bond fracture. Dressing forces are measured experimentally and are compared with those calculated from the new model. Theoretical results closely match with the experimental findings. The dressing forces generated from this model provide a basis for further prediction of wheel topography and the grinding process. 相似文献
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IN SITU TRUING/DRESSING OF DIAMOND WHEEL FOR PRECISION GRINDING 总被引:1,自引:0,他引:1
WAN Daping WANG Yan HU Dejin 《机械工程学报(英文版)》2008,21(3):46-51
An application for achieving on-machine truing/dressing and monitoring of diamond wheel is dealt with in dry grinding. A dry electrical discharge (ED) assisted truing and dressing method is adopted in preparation of diamond grinding wheels. Effective and precise truing/dressing of a diamond wheel is carried out on a CNC curve grinding machine by utilizing an ED assisted diamond dresser. The dressed wheel is monitored online by a CCD vision system. It detects the topography changes of a wheel surface. The wear condition is evaluated by analyzing the edge deviation of a wheel image. The benefits of the proposed methods are confirmed by the grinding experiments. The designed truing/dressing device has high material removal rate, low dresser wear, and hence guarantees a desired wheel surface. Real-time monitoring of the wheel profile facilitates determining the optimum dressing amount, dressing interval, and the compensation error. 相似文献
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MB1632端面外圆磨床随机配套液压仿形成型砂轮修整器,其修整的成型砂轮只能磨削由一档外圆和端面构成的轴端,极大地限制了机床的加工范围。为适应G427凸轮轴设计改进的需要,对原修整器进行了改进,从而使该机床能一次磨削由多段直线、圆弧曲线构成的复杂型面。若更换靠模,可加工各种复杂的导型面。 相似文献
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简要介绍了一种可用于大型轴承桃形沟圆弧修整的砂轮圆弧修整器的结构和工作原理。采用双向液压缸驱动,同时采用机械和电器双限位,以保证砂轮圆弧修整的安全、准确和高效。 相似文献