CN103279603A

CN103279603A - Modeling method for showing machining process of part

Info

Publication number: CN103279603A
Application number: CN2013101930978A
Authority: CN
Inventors: 杨楠; 张森堂; 贺芳; 乔耀峰
Original assignee: Shenyang Liming Aero Engine Group Co Ltd
Current assignee: AECC Shenyang Liming Aero Engine Co Ltd
Priority date: 2013-05-22
Filing date: 2013-05-22
Publication date: 2013-09-04
Anticipated expiration: 2033-05-22
Also published as: CN103279603B

Abstract

The invention provides a modeling method for showing a machining process of a part. A vector plane margin figure method is utilized, a part design model serves as the basis, the reverse planning procedure size is adopted, a procedure model is built in a forward mode, and the machining process of the part is showed. The method includes the steps that the design model structure based on the part is characterized by comprising a rotating structure and a sweeping structure, a section curve with the structural characteristic is obtained through intersection of a vector plane and the part or in a direct extracting mode, and all procedure outlines and sizes are obtained through offset in a sequentially reverse mode; Boolean operation is conducted on the body of the model in the last procedure, and detail building is conducted finally to obtain the procedure model. Compared with a traditional modeling method, the modeling method has the advantages that the reusing thought is utilized, modeling efficiency is high, and operation is rapid and simple. The modeling method accords with the machining process of the part, and necessary relevance exists among procedures. The modeling method is an effective method for being applied to machining stages and building of the procedure model.

Description

A kind of modeling method that represents the part processing process

Technical field

The present invention relates to the aeromotor digitizing and make the field, particularly a kind of modeling method that represents the part processing process.

Background technology

At present, because the three-dimensional process that is applied to mechanical processing process is in probe phase, aspect the structure of operation model, mainly there is following mode: (1), each working procedure states of part is directly carried out independent structure; (2), make up total middle operation model and carry out each operation model construction.At first the processing sequence according to part makes up total operation model, and the timestamp function in the recycling ug software WAVE technology refers to concerned process steps with the part shape on each activity time node; (3), utilize the association of WAVE technology to quote to design a model or the concerned process steps model, recycling is modeled in synchronously to make amendment on the model and makes up this operation model.

It is huge that first kind of mode makes up workload, needs change model one by one during the technology change, and it is many to repeat work; The second way is little than first kind of mode workload, but very high to the requirement of modeling level, and especially for complex parts, it is big to make up difficulty, technology change difficulty; The third mode workload reduces, and is less demanding to the modeling level, but can't be satisfied fully for the complicated parts structure, when technology is changed, needs the part manual change.

Summary of the invention

The objective of the invention is for fear of repeating structure, reduce workload, can conveniently satisfy the operation model construction of revolution class and stretching class formation part, and adapt to the change characteristics of technology, be fit to the model feature of three-dimensional process, the spy provides a kind of modeling method that represents the part processing process.

The invention provides a kind of modeling method that represents the part processing process, it is characterized in that: the described modeling method that represents the part processing process, adopt vector plane surplus figure method, based on the Element Design model, take reverse planning process dimension, forward makes up the operation model, represents the process of part;

Be specially: the architectural feature that designs a model according to part comprises revolving structure, scans structure, utilize vector plane and part body to intersect or directly extract the cross section curve of acquisition architectural feature, by biasing each operation profile and size of reverse acquisition successively, satisfy process planning; When making up the operation model, to the last process model and carry out corresponding operation contour curve and quote, to contour curve rotate accordingly, stretch or scan, curved surface, the body of last process model is carried out boolean operation to be comprised merging, intersects, asks poor, carry out details at last and make up, obtain this operation model;------semi-finishing---finishing---is the operation model of part status finally, represents the whole process of part in roughing equally, can to obtain the blank state of part successively;

At the loop configuration of part and the building mode of boss/groove structure: utilize vector plane, be coordinate system benchmark and the plane of deriving thereof, obtain the typical section line of design of part, obtain the two-dimensional curve of typical structure, typical section as loop configuration is its spin crossover, and boss/groove structure is the stretching cross section; According to section line biasing surplus, the planning physical dimension comprises position dimension and geomery, i.e. the outline line of operation; When making up the operation model, quote relevant outline line and last process model, be rotated or be drawn into lamellar body and entity, obtain the operation model by Boolean calculation or cutting.

Vector plane surplus figure method is fit to the structure of three-dimensional process operation model as a kind of modeling method that can represent the part processing process, reduces personnel's modeling level requirement; The modeling efficiency height, namely the modeling of Shi Yonging is simple to operate, quantity is few, and operating process is simple; When solving the technology change, the association transmission of operation up and down, the data structure between all models is clear; The model construction that is fit to complex parts.

Advantage of the present invention:

The modeling method that represents the part processing process of the present invention, more traditional model building method utilizes the thought of reusing, modeling efficiency height, quick, simple to operate.Meet the part processing process, there is necessary relevance in inter process.When last process was changed, following operation model was changed accordingly, can adapt to the change of part shape topological relation.Be that model is applied to the process segment, make up a kind of effective ways of operation model.

Description of drawings

The present invention is further detailed explanation below in conjunction with drawings and the embodiments:

Fig. 1 is model construction scheme process flow diagram;

Fig. 2 is characteristic feature building mode synoptic diagram.

Embodiment

Embodiment 1

Present embodiment provides a kind of modeling method that represents the part processing process, it is characterized in that: the described modeling method that represents the part processing process, adopt vector plane surplus figure method, based on the Element Design model, take reverse planning process dimension, forward makes up the operation model, represents the process of part;

Claims

1. a modeling method that represents the part processing process is characterized in that: the described modeling method that represents the part processing process, employing vector plane surplus figure method, based on the Element Design model, take reverse planning process dimension, forward makes up the operation model, represents the process of part;