共查询到20条相似文献,搜索用时 171 毫秒
1.
2.
3.
4.
为了在国产数控弧齿锥齿轮铣齿机上加工克林贝格摆线齿锥齿轮,对采用整体刀盘加工摆线齿锥齿轮的方法进行了研究。基于摆线齿锥齿轮的切齿加工原理,提出了大轮采用双面法加工,小轮采用单面法加工的切齿方法。参考分体刀盘的结构参数,提出了整体刀盘的刀盘体以及刀齿的设计方法。建立了一种根据相啮合齿面间齿长曲率关系,运用迭代算法确定刀盘半径修正量的方法。根据切齿加工原理以及齿轮啮合原理,给出了基于整体刀盘切齿加工摆线齿锥齿轮的机床调整参数和刀盘参数的计算公式。在国产五轴联动数控弧齿锥齿轮铣齿机上,利用整体刀盘进行了切齿加工实验,通过对齿轮副的啮合滚动检验,验证了采用整体刀盘加工克林贝格摆线齿锥齿轮的切齿加工原理及切齿方法的正确性及可行性。 相似文献
5.
6.
7.
8.
为了在国产数控螺旋锥齿轮加工机床上实现端面弧齿联轴节的加工,对固定式端面弧齿联轴节的加工方法进行了研究。分析了端面弧齿联轴节的切齿原理和切齿方法,根据固定式端面弧齿联轴节的调整计算卡,建立了刀盘半径、刀齿顶宽、切削刃压力角、刀尖圆角半径的计算方法。基于端面弧齿联轴节的切齿原理以及国产数控螺旋锥齿轮加工机床的结构,建立了弧齿联轴节切齿加工机床调整参数的计算方法,给出了相关的计算公式并开发了端面弧齿联轴节设计、加工参数计算软件。在国产H350G型数控螺旋锥齿轮磨齿机上,基于软件计算得到的机床调整参数进行了实际的磨齿加工,通过实际的接触区检测和几何参数检测,验证了切齿加工参数计算方法的正确性。 相似文献
9.
螺旋锥齿轮切齿技术从开初的五刀法到两刀法,从液态切削到干态切削,从切齿到研齿,至20世纪90年代后期,螺旋锥齿轮的加工已发展到以格里森凤凰系列为代表的数控铣齿机和数控磨齿机加工,大大提高了螺旋锥齿轮的制造质量。本文介绍了螺旋锥齿轮切、磨齿技术的发展慨况以及磨齿技术面临的挑战。 相似文献
10.
11.
12.
13.
14.
数控机床刀具中的检测与监控就是采用检测与监控系统通过传感和分析处理相关信息,从而对数控机床运行状态和加工过程进行检测与控制,保证数控机床的加工质量,防止产生废品,减少废品率,提高机械加工生产率,提高加工过程的安全性,优化配置制造资源。而检测与监控系统的成败主要取决于系统所收集的信号即有关监控参数的正确选择,也取决于其物理结构上的传感器和监控器以及硬件和软件系统。 相似文献
15.
设计了刀具磨损检测控制系统,采用EPF10K10TC144-4主控芯片、位移传感器,采用分布式算法编制了控制软件并进行了系统仿真。将数据输入到CNC系统,修改刀具参数,并在数控车床上进行了切削实验。对比研究结果表明,该系统避免了人工检测误差、机床频繁停机,减少了换刀次数和重新对刀引入的二次误差,延长了刀具有效使用时间,且加工效率、加工精度、产品合格率都有明显提高。 相似文献
16.
Yi-Pei Shih Ya-Chuan Huang Yi-Hui Lee Jhih-Ming Wu 《The International Journal of Advanced Manufacturing Technology》2013,68(9-12):2499-2515
Face hobbing is a continuous indexing and double-flank cutting process whose high productivity and precision has made it one of the leading methods for fabricating spiral bevel and hypoid gears. The current method is inappropriate, however, for cutting straight bevel gears (SBGs) because it generates extended epicycloidal flanks. Nonetheless, a mathematical model of a face-hobbed SBG was successfully established in earlier research that enables straight cutting paths to cut straight tooth spaces based on a hypocycloidal straight-line mechanism in which the rolling circle radius equals half the base circle radius. This mathematical model, however, is based on a virtual universal cradle-type bevel gear cutting machine that has not yet been developed. This paper therefore proposes another mathematical model of face-hobbed SBG based on a modern six-axis computer numerical control (CNC) bevel gear cutting machine. The six-axis nonlinear machine settings are derived through conversion from the cradle-type machine settings. Meanwhile, the usage of electric gearbox (EGB) for bevel gear cutting is not revealed because of commercial consideration. Therefore, we also provide a solution to use EGB of Fanuc 16i CNC controller. A cutting experiment validates the proposed mathematical models using our developed six-axis CNC bevel gear cutting machine to cut the face-hobbed SBGs. Finally, a flank topographic correction is made that, according to postcorrection simulated topographic errors, can effectively reduce manufacturing errors. This paper successfully implements a face-hobbing process for manufacturing SBGs on a modern six-axis CNC bevel gear cutting machine. 相似文献
17.
提出一种用运动控制芯片PCL240AS构造的伺服电动机和步进电动机通用的运动控制器。介绍了专用控制芯片的性能及其构成的通用运动控制器软、硬件的设计,并将其应用在水切割机床的数控系统中。 相似文献
18.
19.
高速加工在切削速度、材料去除率以及表面加工质量等方面较普通数控加工具有明显优势。在工艺研究中,将高速加工切削理论应用在现有的普通数控设备上,在主轴转速不变或相应提高的情况下,提高切削移动速度同时减小切削深度进给量,从而达到提高切削效率、减小切削应力以及改善加工表面质量的目的。 相似文献
20.
Ching-Yang Lin 《Machining Science and Technology》2020,24(1):65-95
AbstractThis study designed an automatic cutting feed adjustment system for computer numerical control (CNC) turning machine tools, which integrate the operational characteristics of cutting force control and chatter suppression control to shorten the machining time and maintain the quality of workpieces. The setting of appropriate machining conditions (such as cutting feed, spindle speed and depth of cut) to consider both machining quality and efficiency often causes difficulties for machine tool operators. Therefore, this study uses cutting force control to design an automatic cutting feed adjustment method for cutting tools, and then, the chatter suppression control design is used to modify the cutting force command to suppress cutting chatter. The experimental results of the CNC turning machine tool show that the use of the cutting force control to adjust the cutting feed can shorten the machining time; however, the cutting chatter results in larger surface waviness on the workpiece surface. When the cutting force command is properly modified by actuating the chatter suppression control, the workpiece shows better surface roughness with prolonged machining time. Therefore, the cutting tests demonstrate that the proposed system is feasible for satisfying the machining requirements of the manufacturing processes of mechanical parts for high speed and high accuracy. 相似文献