Development and analysis of principles for kinematically coupled force-compensation for machine tools

机床运动耦合力补偿原理的开发和分析

• 批准号: 252272337
• 负责人: Professor Dr.-Ing. Steffen Ihlenfeldt
• 金额: --
• 依托单位: Institut für mechatronischen Maschinenbau
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/252272337?language=en
• 关键词: Development; analysis; principles; kinematically; coupled

In order to improve the economic efficiency in machining, productivity has to be increased while machining quality is at least maintained and total cost of ownership stays moderate. Due to this, relative movements between work piece and tool for the purpose of machining or handling must be conducted with high dynamics. But the increase of dynamics of machine tools and handling equipment reaches its limits. State of the art drive and control systems provide higher velocities, accelerations and jerk, but machine structures can withstand these only with oscillations. The limitation of dynamics reduces the excitation of oscillations of the machine structure but also reduces productivity. Various principles were developed to reduce the effect of dynamic reaction forces on machine structures. In this research project the principles of redundant axes and force compensation are combined to a novel principle - the kinematically coupled force compensation. This principle demands a specialized design of machine structures and offers the potential for highly dynamic, precise and energy-efficient movements.In the second phase of the project, machine structures are developed which enable the drive reaction forces to be optimally canceled regardless of the machine chassis that determines the accuracy of the machine. In addition, the transition to a planar motion system takes place, whereby the application background of the developed method can be significantly expanded. Additionally the range of ultra-high-dynamic motions is opened up.

为了提高机械加工的经济效益，必须在保证加工质量的同时提高生产率，使总拥有成本保持适度。因此，为了加工或搬运的目的，工件和刀具之间的相对运动必须以高动力学进行。但是，机床和搬运设备的动力学增加达到了极限。最先进的驱动和控制系统提供更高的速度，加速度和震动，但机器结构只能承受这些振荡。动力学的限制减少了机器结构振荡的激励，但也降低了生产率。为了减少动力反作用力对机械结构的影响，研究人员开发了各种原理。在本研究项目中，将冗余轴和力补偿原理结合为一种新的原理——运动耦合力补偿。这一原则要求机器结构的专门设计，并提供了高动态，精确和节能运动的潜力。在项目的第二阶段，开发了机器结构，使驱动反作用力能够被最佳地取消，而不考虑决定机器精度的机器底盘。此外，过渡到平面运动系统发生，从而可以大大扩展所开发的方法的应用背景。此外，还开辟了超高动态运动的范围。