Unlock instant, AI-driven research and patent intelligence for your innovation.

A Method of Solving the Cutter Position of Cyclone Milling Blade Based on Curvature Variation

A technology of curvature change and tool position, which is applied in the direction of program control, instrument, computer control, etc., can solve the problems of easy overcut, processing quality and lower processing efficiency, etc.

Active Publication Date: 2020-11-13
SHANDONG UNIV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In places with large curvature, if the step distance of the tool path is set too large, overcutting is very easy to occur, so a smaller step distance is required at the edge of the blade, but if the blade back with small curvature (2) and (4 ) using the same step distance will not significantly improve the processing quality but seriously reduce the processing efficiency, so it is particularly important to set different numbers of tool points in different curvature areas

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Method of Solving the Cutter Position of Cyclone Milling Blade Based on Curvature Variation
  • A Method of Solving the Cutter Position of Cyclone Milling Blade Based on Curvature Variation
  • A Method of Solving the Cutter Position of Cyclone Milling Blade Based on Curvature Variation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Attached below image 3 The method disclosed in this embodiment is further explained;

[0057] Reference attached image 3 As shown, a method for solving the tool position of a whirlwind milling blade based on the curvature change includes the following steps:

[0058] 1) Interpolation to create construction points:

[0059] On the basis of a finite number of model value points with known coordinates, these model value points are interpolated by cubic spline to obtain the equation of the section curve at any section of the blade. Then by uniformly setting the value of the distance between any two adjacent construction points and the distance Δx between the model value point and the construction point, substituting them into the obtained curve equation, the final m construction points and their coordinates (x i ,y i ,z i )(i=1, 2,...m).

[0060] The size of Δx determines the geometric accuracy of the blade and needs to be set according to specific requirements. Because the cu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for solving a whirlwind milling blade cutter location point based on curvature change. The method comprises steps of of inserting a section curve equation of any section of a blade to obtain m structural points and coordinates of the m structural points; equally dividing the section curve of the blade into n sections, and determining the maximum curvature and the minimum curvature of each section curve to obtain a cutter location point number coefficient of each section curve; redistributing the construction points, calling the redistributed construction pointsas knife contacts, and obtaining coordinates of the knife contacts; and solving the coordinates of the cutter location points according to a parameter equation of the blade curved surface and a parameter equation of a cutter curved surface.

Description

Technical field [0001] The present disclosure relates to a method for solving the tool position points of a whirlwind milling blade, and in particular to a method for solving the tool position points of a whirlwind milling blade based on changes in curvature. Background technique [0002] Blade parts are widely found in aero-engines, turbines, compressors, fans, propellers and other electromechanical equipment, and play an important role in many industrial fields. The high-efficiency, high-quality, and low-cost manufacturing of blades is of great significance to the development of the national economy and society. At present, the commonly used CNC machining methods for the blade surface are: ball end milling (point milling), side milling, and non-ball end milling. In recent years, the method of machining blades with free-form surfaces using whirlwind milling has also been developed. [0003] Cyclone milling is an efficient processing technology that uses multiple tools mounted on...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/408
CPCG05B19/4086G05B2219/35356
Inventor 刘日良丰佳铭
Owner SHANDONG UNIV