基于圆弧投影的非圆柱实心立铣刀刃磨砂轮轨迹规划

IF 6.1 1区 工程技术 Q1 ENGINEERING, MANUFACTURING
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引用次数: 0

摘要

刃磨是实心立铣刀制造过程中的关键工序,因为所产生的刃参数(即螺旋角、前角、刀心半径和刃宽等)对立铣刀的切削性能有重大影响。然而,由于刀槽参数沿刀具轴线的变化,非圆柱形实心立铣刀的刀槽磨削仍然具有挑战性。本文提出了一种基于圆弧投影的非圆柱实心立铣刀刃磨砂轮轨迹规划的精确高效方法。即使所有这些参数沿刀具轴线变化,新方法确定的砂轮轨迹也能精确生成设计的螺旋角、前角、刀心半径和刃宽。螺旋角和前角由砂轮表面与切削刃曲线之间的共轭条件保证。在圆弧投影的基础上,引入了核心半径和刃宽的等效误差,以量化这两个参数的加工误差,而无需预测刃口轮廓。模拟和实验验证了所提出的方法。验证中考虑了三种非圆柱形立铣刀,即锥形立铣刀、锥形筒状立铣刀和筒状立铣刀。测量结果表明,在立铣刀的不同轴向位置上,生成的刃参数与设计参数非常吻合。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Wheel path planning for flute grinding of non-cylindrical solid end-mills based on circular arc projection

Flute grinding is a crucial process in solid end-mill manufacturing, because the generated flute parameters, i.e. helix angle, rake angle, core radius, and flute width, have significant effects on the cutting performance of end-mills. However, the flute grinding of non-cylindrical solid end-mills is still challenging due to the variation of the flute parameters along the tool axis. This paper proposes an accurate and efficient method of wheel path planning for flute grinding of non-cylindrical solid end-mills based on circular arc projection. The wheel path determined by the new method can accurately generate the designed helix angle, rake angle, core radius, and flute width, even if all of these parameters vary along the tool axis. The helix angle and rake angle are ensured by the conjugate condition between the wheel surface and the cutting-edge curve. Based on circular arc projection, equivalent errors of the core radius and flute width are introduced to quantify the machining errors of the two parameters, without the need to predict the flute profile. Simulations and experiments are conducted to validate the proposed method. Three types of non-cylindrical end-mills i.e. tapered end-mill, tapered barrel end-mill, and barrel end-mill, are considered in the validation. The measured results indicate that the generated flute parameters coincide well with the designed ones at different axial positions of the end-mills.

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来源期刊
Journal of Manufacturing Processes
Journal of Manufacturing Processes ENGINEERING, MANUFACTURING-
CiteScore
10.20
自引率
11.30%
发文量
833
审稿时长
50 days
期刊介绍: The aim of the Journal of Manufacturing Processes (JMP) is to exchange current and future directions of manufacturing processes research, development and implementation, and to publish archival scholarly literature with a view to advancing state-of-the-art manufacturing processes and encouraging innovation for developing new and efficient processes. The journal will also publish from other research communities for rapid communication of innovative new concepts. Special-topic issues on emerging technologies and invited papers will also be published.
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