Milling cutter path optimization method of numerical control milling machine

By constructing an objective function and planning an S-shaped acceleration/deceleration speed curve to optimize the milling cutter path, the problem of inconsistent speed planning in complex paths was solved, achieving high-quality and efficient machining results and extending the service life of the machine tool.

CN121115674AActive Publication Date: 2025-12-12SHIJIAZHUANG SHITE ROLLER CO LTD
6 Cites 2 Cited by

Patent Information

Application Number
CN202511649253.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-12
Publication Date
2025-12-12
Estimated Expiration
2045-11-12

AI Technical Summary

Technical Problem

Existing technologies cannot perform comprehensive and uniform speed planning for complex paths containing many continuous turns, resulting in low workpiece surface finish and processing efficiency.

Method used

By constructing an objective function based on the rotation angle, adjacent path length, and tool-spindle system characteristics, the optimal transition arc radius is determined, and an S-shaped acceleration/deceleration speed curve is planned to optimize the milling cutter path to suppress vibration and correct the transition feed rate.

Benefits of technology

It effectively suppresses vibration during processing, improves the surface finish and contour accuracy of workpieces, increases processing efficiency, and protects machine tool components to extend their service life.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to the technical field of numerical control machining, and discloses a milling cutter path optimization method of a numerical control milling machine, which comprises the following steps: acquiring an initial milling cutter path, and identifying corner points between adjacent straight line segments; obtaining a corner angle, the length of a relatively short straight line segment and a matrix M of a tool-spindle system; constructing a vibration suppression objective function, and solving the transition arc radius of the corner point; calculating a basic transition feeding speed; calculating a weighted influence factor of each corner point in the N continuous corner point sequences, performing summation to obtain a comprehensive influence coefficient, and calculating a correction transition feeding speed; planning a speed transition area; constructing an S-shaped acceleration and deceleration speed curve; and according to the S-shaped acceleration and deceleration speed curve, the speed transition area and the feeding speed on the transition arc are determined, and an optimized milling cutter path is generated. According to the method, comprehensive and unified speed planning can be carried out on a complex path comprising a plurality of continuous corners, and the surface machining quality and machining efficiency of the workpiece are improved.
Need to check novelty before this filing date? Find Prior Art