Interval adaptive planning method for five-axis machining feed speed

A feed rate, self-adaptive technology, used in instruments, digital control, control/regulation systems, etc., can solve problems such as difficulty in application, affecting the stability of feed motion, and heavy computational burden, achieving high computational efficiency.
CN110989504AActive Publication Date: 2020-04-10HARBIN ENG UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN ENG UNIV
Publication Date
2020-04-10

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Abstract

The invention belongs to the technical field of robots and high-grade numerical control machine tools, and particularly relates to an interval adaptive planning method for five-axis machining feed speed. Based on application of a look-ahead window, the influence of the out-of-window curve morphology on the current interval feed speed planning is cut off; allowable feed parameters of a current interval and a look-ahead interval are calculated based on a differential principle; and the feed speed profile of the current interval is planned according to the allowable feed parameters of the previous interval, the current interval and the look-ahead interval, so that regional look-ahead planning of the overall feed speed of the long spline curve path is achieved. The calculation efficiency is high, and the machine tool performance can be fully utilized on the premise that feed shaft driving capacity constraints are met.
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Description

technical field

[0001] The invention belongs to the technical field of robots and high-end numerically controlled machine tools, and in particular relates to an interval self-adaptive planning method for five-axis machining feed speed. Background technique

[0002] For the high-end five-axis linkage CNC system, spline curve interpolation is a necessary advanced interpolation function, and in order to realize spline curve interpolation processing, reasonable planning of the feed speed of the curve path is the basis and premise . If the feed speed is too high, it will cause one or more of the five feed axes to exceed the driving capability range, which will induce machining vibration. If the feed speed is too low, it will inevitably affect the processing efficiency. Therefore, how to meet the requirements of the feed axis Under the constraints of driving ability, planning the feed rate of five-axis CNC machining that fully utilizes the performance of machine tools has become ...

Claims

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