采用可调力调节机构的自动磨削/去毛刺无传感器力控制

Y. Kuo, Sheng-Yuan Huang, Chao-Chieh Lan
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引用次数: 13

摘要

控制工件上的接触力一直是工业磨削/去毛刺操作的一个具有挑战性的任务。它的实现往往需要一个带有多轴力传感器和控制器反馈的磨削主轴。主轴需要经常改变其位置,以保持恒定的接触力。使用传感器和控制是昂贵的,并引入了额外的复杂性,研磨工具。为了提高加工不规则轮廓工件的抛光质量,提出了一种新型的力调节机构安装在磨具上。无需使用额外的传感器和控制,FRM可以被动地在工具尖和各种几何形状的工件之间产生可调的法向接触力。主轴不需要移动来调节接触力。与便宜得多的简单研磨机一起,这种方法在成本和复杂性方面提供了更具吸引力的解决方案。本文给出了设计思路和仿真结果,并进行了讨论。最后以磨床样机为例,验证了该方法的有效性和准确性。这种新型机构有望成为工业磨削/去毛刺操作的可靠替代方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sensorless Force Control of Automated Grinding/Deburring Using an Adjustable force regulation mechanism
Controlling the contact force on workpieces has been a challenging task for industrial grinding/deburring operations. Its realization often requires a grinding spindle with a multi-axis force sensor and controller feedback. The spindle needs to frequently vary its position in order to maintain a constant contact force. The use of sensors and control is costly and introduces extra complexity for grinding tools. To improve the polishing quality of handling workpieces of irregular contours, this paper presents a novel force regulation mechanism (FRM) to be installed on grinding tools. Without using additional sensors and control, the FRM can passively produce an adjusTable NORMAL Contact force between the tooltip and workpiece of various geometry. the spindle does not have to move to regulate the contact force. together with a simple grinder which is much less expensive, this approach offers a more attractive solution in terms of cost and complexity. in this paper, the design concept and simulation results are presented and discussed. a prototype of a grinder with the proposed FRM is illustrated to demonstrate the effectiveness and accuracy of force regulation. this novel mechanism is expected to serve as a reliable alternative for industrial grinding/deburring operation.
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