Curved surface laser cladding rapid track planning method based on point cloud model

Abstract

The invention discloses a curved surface laser cladding rapid track planning method based on a point cloud model. The curved surface laser cladding rapid track planning method is implemented by the following steps that (1), the surface of a part with manufacturing defects of a certain depth, or mistaken machining damage or service damage is scanned and subjected to noise point removing and simplifying treatment by using software to obtain point cloud data omega; (2), parallel planes are set and called cutting pieces, a point cloud is cut through the parallel planes, and it is stipulated that the motion direction of a laser head is the direction of the cutting pieces; (3), intersections of the cutting pieces and the point cloud are calculated; (4), interpolation points are searched; and (5), the posture of a laser beam is calculated.

Description

Fast trajectory planning method for curved surface laser cladding based on point cloud model technical field The invention relates to a trajectory planning method for laser cladding on complex curved surfaces, in particular to a fast trajectory planning method for laser cladding on curved surfaces based on a point cloud model. Background technique Laser cladding is to heat and melt materials with special properties on the surface of the substrate to obtain a high-quality cladding layer that forms a good metallurgical bond with the substrate. According to its application characteristics, parts with certain deep manufacturing defects, misprocessing damage or service damage can be repaired; at present, laser cladding equipment can realize cladding of flat plates, cladding of shaft parts, and melting of simple rotary outer circular parts cover. However, for laser cladding on complex curved surfaces, it has always been an engineering problem because of the control of laser def...

AI Technical Summary

Problems solved by technology

1. It is necessary to reverse the curved surface in the pre-processing stage, repairing and smoothing the curved surface will consume a lot of time, the efficiency is low, and it will seriously affect the engineering application;

2. At present, there is a lack of trajectory planning model for curved surface laser cladding, and the calculation of interpolation points is based on the multi-axis CNC milling model

When calculating interpolation points through this model, quantity redundancy greatly affects usage efficiency

Beam attitude calculations are also inaccurate

Images