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

Design method of registration and positioning of rolling blade profile

A technology of rolling blades and design methods, applied in computing, special data processing applications, instruments, etc., can solve problems such as poor registration accuracy of profiles, and achieve the effect of improving accuracy

Inactive Publication Date: 2018-01-12
NORTHWESTERN POLYTECHNICAL UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of the poor profile registration accuracy of existing methods, the present invention provides a rolling blade profile registration and positioning design method

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
  • Design method of registration and positioning of rolling blade profile
  • Design method of registration and positioning of rolling blade profile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] refer to Figure 1-2 . The specific steps of the rolling blade profile registration and positioning design method of the present invention are as follows:

[0023] Step 1: Start the 3D modeling software UG NX7.0, import the blade design process model, perform point discretization on the back surface of the blade, and establish a search point set 1. The accuracy of the discrete distance is the same as that of a three-coordinate measuring machine. The absolute coordinate system is the coordinate origin.

[0024] Step 2: Establish a positioning reference on the roll forming blade, take three mutually perpendicular planes on the rolling blade clamping mechanism as positioning, and the intersection point as the coordinate origin, establish clamping coordinates, and use it as a measurement coordinate system.

[0025] Step 3: Clamp the roll forming blade, plan the measurement path on the three-coordinate measuring machine, and measure the surface point coordinates, record th...

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 rolling blade profile registration and positioning design method, which is used to solve the technical problem of poor profile registration accuracy in the existing method. The technical solution is to establish a set of points for component surveying and mapping and search for a set of registration points, establish a registration model and develop a program for registration, evaluate the registration results and eliminate extreme points, use an iterative algorithm to match and establish a mapping relationship, based on Model datum points and mapping relationships establish blade datums. It can be expanded for matching and positioning between special-shaped and no-reserve profiles, which improves the accuracy of profile registration.

Description

technical field [0001] The invention relates to a method for registering and positioning design of a rolling blade profile. Background technique [0002] Blade rolling precise forming technology is an advanced blade processing method. With its advantages of high production efficiency, high dimensional accuracy, and good structure performance, it has become an important processing method for small blades of aero-engines. After the rolling blade is rolled and formed, it needs to be processed on the leading and trailing edges and the blade tip and root. Before that, it needs to be inspected and evaluated, and positioned to obtain the processing benchmark. The traditional method is still based on size transfer, wire cutting and fitter polishing to complete the smooth transfer of the front and rear edges, which has low precision and a large labor load. [0003] The document "Posture Registration Method for Measurement Data of Complex Surfaces, Mechanical Design and Research, Au...

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): G06F17/50
Inventor 汪文虎靳淇超赵德中解晓娜张艳熊一峰宋国栋林坤阳
Owner NORTHWESTERN POLYTECHNICAL UNIV