Grinding method for non-circular curved glass ornaments based on point cloud data description

Abstract

The invention relates to a grinding method for non-circular curved glass ornaments based on point cloud data description. According to the grinding method, by determining the linkage data for controlling the workpiece rotary motion and longitudinal tracking feed, the exterior contour of any non-circular curved glass workpiece is machined. Only according to the data of glass workpiece contour points and the structural parameters of a numerical control machine, the linkage data for controlling the workpiece rotary motion and longitudinal tracking feed can be obtained. The contour with or withoutdefinite mathematical model can be applied, the grinding precision is high, and the error is little. The disadvantages such as tedious drawing and heavy workload of the machining track of a special-shaped non-circular contour by a geometric drawing method in engineering are overcome better, and the shortcomings of fitting error and complex formula calculation existing in a curve fitting method are overcome.

Description

technical field [0001] The invention belongs to the technical field, and relates to a method for grinding non-circular curved glass ornaments described based on point cloud data. Background technique [0002] Glass is a hard, brittle, transparent material whose optical and physical properties play a vital role in many different industrial applications. Nowadays, all kinds of glass ornaments are widely used in people's daily life. The demand for special-shaped glass ornaments is increasing, while the traditional processing methods are relatively backward. Glass molds of complex shapes. The manufacturing efficiency and precision of this type of method depend on the experience of technicians, and the degree of automation is low, which can no longer meet the market demand. In addition, for the engineering of grinding special-shaped non-circular rotary parts, geometric drawing is usually used to determine the linkage coordinate point positions of the rotary axis (C axis) and th...

AI Technical Summary

Problems solved by technology

Nowadays, all kinds of glass ornaments are widely used in people's daily life. The demand for special-shaped glass ornaments is increasing, while the traditional processing methods are relatively backward. Complex Shaped Glass Molds

The manufacturing efficiency and precision of this method depend on the experience of technicians, and the degree of automation is low, which can no longer meet the market demand.

In addition, for the engineering of grinding and processing special-shaped non-circular rotary parts, geometric drawing is usually used to determine the linkage coordinate point positions of the rotary axis (C axis) and the longitudinal axis (Y axis) one by one. The drawing is cumbersome and the workload is large.

The other is the method of curve fitting, but this method has fitting errors, and the formula is complicated and the calculation is large

Since the non-circular surface grinding technology directly involves the core technology and commercial interests of CNC manufacturers, there are few domestic and foreign literatures on the non-circular surface grinding model and process.

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