A Modeling Method of Tool Sweeping Volume

A modeling method and scanning volume technology, applied in the field of numerical control, can solve the problems of time-consuming calculation process and high time complexity of tool scanning volume

Active Publication Date: 2017-10-20
中国科学院沈阳计算技术研究所有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional explicit parameter method has the following problems in constructing the tool sweeping volume: First, for a tool model with a complex contour, it is necessary to construct the sweeping volume surface by calculating the critical line under the condition that the normal vector of the tool surface is orthogonal to the direction of motion at each moment , the calculation process is time-consuming; secondly, in the application of material removal simulation and interference collision detection, determining the intersection area between the scanning volume expressed by explicit parameters and the workpiece model also requires time-consuming spatial three-dimensional surface-to-surface calculation
Therefore, the explicit parameter expression method to construct the tool sweep volume has a high time complexity

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 Modeling Method of Tool Sweeping Volume
  • A Modeling Method of Tool Sweeping Volume
  • A Modeling Method of Tool Sweeping Volume

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0056] The present invention comprises the following steps (as Figure 5 shown):

[0057] According to the general tool model (such as figure 1 shown) to calculate the implicit function expression T(x, y, z)=0 of the tool in the tool frame system;

[0058] The implicit function expression of the general tool model in the tool frame system is specifically:

[0059] The implicit function expression of the general tool model is divided into three parts, namely the upper part, the middle part and the lower part (such as figure 1 shown). Among them, the central part is divided into the outer part and the inner part (such as figure 2 shown).

[0060] According to the frame theory of rigid body motion and the inverse kinematic relationship between the tool and the workpiece. Calculate the conversion relationship between the tool frame system and the workpiece frame ...

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 relates to a cutter swept volume modeling method, in particular to a method for expressing a universal cutter model in a cutter frame system by implicit functions in the numerical control machining simulation application and expressing a universal cutter model swept volume by four-dimensional implicit functions comprising time parameters by a rigid motion frame theory and counter movement means. In the machining simulation, the position relationship between a point and the swept volume is rapidly judged so as to realize efficient material removing simulation and collision and interference detection.

Description

technical field [0001] The invention relates to numerical control technology, in particular to a tool scanning body modeling method. Background technique [0002] For the NC machining program used for the first time, its correctness and safety cannot be guaranteed, and it must be verified. Compared with the online debugging method of machine tools, NC machining simulation has the characteristics of high efficiency and low cost. The modeling method of tool scanning volume is one of the key technologies of NC machining simulation, which greatly affects the efficiency of NC machining simulation. The traditional explicit parameter method has the following problems in constructing the tool sweeping volume: First, for the tool model with complex contours, it is necessary to construct the sweeping volume surface by calculating the critical line under the condition that the normal vector of the tool surface is orthogonal to the direction of motion at each moment , the calculation ...

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): G05B19/19
CPCG05B19/19
Inventor 郭锐锋王鸿亮黄骏李博郑飂默
Owner 中国科学院沈阳计算技术研究所有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap