CN101770651A

CN101770651A - Detailed design for working drawing of bent-torsional member

Info

Publication number: CN101770651A
Application number: CN 201010116677
Authority: CN
Inventors: 郑文明; 张海峰; 张峰; 王君木
Original assignee: CHAO FENG STEEL STRUCTURE GROUP Co Ltd
Current assignee: CHAO FENG STEEL STRUCTURE GROUP Co Ltd
Priority date: 2010-03-03
Filing date: 2010-03-03
Publication date: 2010-07-07
Anticipated expiration: 2030-03-03
Also published as: CN101770651B

Abstract

The invention relates to a detailed design for a work drawing, in particular to a detailed design for a working drawing of a bent-torsional member, which comprises the following steps of: a, connecting spline curves according to coordinates of the outline of the bent-torsional member to form a space net; b, selecting two spline curves with intersecting curvatures in the space net; c, deviating four curves from the two intersecting spline curves respectively; d, forming a curved surface by every two adjacent curves and stretching the formed surface inwards for a distance of y to form a plate; e, drawing a plurality of groups of triangles on the plate surface of each plate respectively, wherein the vertexes of the triangles are all positioned on the curves deviated from the spline curves and the triangles in the plate surfaces of two adjacent plates share the vertexes of intersected curves of the two plates; f, drawing a coordinate position table of each vertex according to the vertex positions of each triangle on the plate surface of the plate; and g, obtaining a plate sample drawing for blanking and processing. The detailed design has the advantages of effectively controlling simulation errors, avoiding making members wrongly, making the produced members be closer to the requirement of theoretical design and effectively guiding workshop production.

Description

The in-depth design of bending component working drawing

Technical field

The present invention relates to a kind of working drawing in-depth design, particularly a kind of in-depth design of bending component working drawing.

Background technology

Domestic in recent years spatial steel structure has had bigger development, and particularly some large span bending steel constructions (or combination steel construction) development is very swift and violent.These new steel structures outside original and different, the surface mostly is streamlined moulding, and so must to cause deepening design be very complicated in moulding.

Summary of the invention

Purpose of the present invention is exactly the weak point in the background technology, and a kind of in-depth design of bending component working drawing is provided.

For achieving the above object, the present invention adopts following technical scheme: the in-depth design of bending component working drawing may further comprise the steps:

A, in computing machine, link up by the coordinate of the given exterior contour of bending component working drawing and with SPL, form the space gauze;

B, in the gauze of space, choose two crossing SPL TA and TB that curvature is bigger;

C, according to the given side-play amount x of bending component working drawing, two batten curves are offset out four curves respectively, and line forms rectangle between four curved sections;

D, two four curves that crossing SPL is offset out, its every adjacent two curves form a curved surface, wherein choose wherein four faces that curve generated that a batten curve offset goes out as a whole, four faces that curve generated that another curve offset is gone out are divided into two sections, formed respectively to in-draw y apart from generating plate, wherein y is the given stretching distance of bending component working drawing;

E, on the plate face of each plate, draw many group triangles respectively, and each vertex of a triangle all is positioned on the curve that the SPL that constitutes plate is offset out, two adjacent shared one side of triangle in the plate, adjacent two boards spare, its cross spider is the curve that SPL is offset out, and each summit is the adjacent interior leg-of-mutton shared summit of two boards spare on the curve;

F, according to each vertex of a triangle position on the plate face of plate, draw the position coordinate table on each summit;

G, go out to be used for the little master drawing of plate of blanking and processing.

The present invention compares with background technology, has effectively to control simulation error, avoids member to do wrong, and makes the member of producing more press close to the Design Theory requirement, and can effectively instruct Workshop Production.

Description of drawings

Fig. 1 is the space grid scheme that forms after bending component exterior contour coordinate points links to each other with SPL.

Fig. 2 is a synoptic diagram after two crossing SPL choosing in the gauze of space.

Fig. 3 is that two crossing SPL TA and TB are offset out four synoptic diagram behind the curve respectively.

Fig. 4 is the schematic cross-section that SPL TA is offset out four curves.

Fig. 5 is the schematic cross-section that SPL TB is offset out four curves.

Fig. 6 is the synoptic diagram that four curves that SPL TA is offset out cut off four curves that TB are offset out.

Fig. 7 is that SPL TA is offset out four the formed curved surface A of curve decomposing schematic representations.

Fig. 8 is that the formed curved surface B of four curves that SPL TB is offset out cuts off the rear curved surface decomposing schematic representation through curved surface A.

Fig. 9 is that two adjacent curved surface stretching y draw leg-of-mutton synoptic diagram respectively within it after forming plate.

Embodiment

Embodiment 1: with reference to Fig. 1～9.The in-depth design of bending component working drawing may further comprise the steps:

C, according to the given side-play amount x of bending component working drawing, two batten curves are offset out four curves respectively, and line forms rectangle between four curves;

Embodiment 2: with reference to Fig. 1 and 2.Two crossing SPL described in the step b are two SPL that curvature is bigger in the gauze of space.

Embodiment 3: with reference to Fig. 3,4,5,6,7 and 8.SPL TA is offset out four curves according to the given side-play amount x of bending component working drawing in the steps d, be respectively curve TA1, TA2, TA3 and TA4, adjacent two curve TA1 and TA2 constitute curved surface V1, curve TA2 and TA3 constitute curved surface V2, curve TA3 and TA4 constitute curved surface V3, and curve TA4 and TA1 constitute curved surface V4;

The curved surface that four curves that selected TA is offset out constitute as a whole, then SPL TB is offset out four curves according to the given side-play amount x of bending component working drawing and is cut to two parts, be respectively TB1, TB2, TB3, TB4, TB5, TB6, TB7 and TB8, adjacent two curve TB1 and TB2 constitute curved surface V1, curve TB2 and TB3 constitute curved surface V2, curve TB3 and TB4 constitute curved surface V3, curve TB4 and TB1 constitute curved surface V4, curve TB5 and TB6 constitute curved surface V5, curve TB6 and TB7 constitute curved surface V6, curve TB7 and TB8 constitute curved surface V7, and curve TB8 and TB5 constitute curved surface V8; Respectively with each curved surface stretching y apart from generating plate, wherein y is the given stretching distance of bending component working drawing.

Embodiment 4: with reference to Fig. 9.In each plate, draw triangle respectively described in the step e, its each vertex of a triangle all is positioned on the curve that TA or TB be offset out, each summit on the shared adjacent two boards spare cross spider of triangle in the adjacent two boards spare, described cross spider are the curve that TA or TB are offset out.

Embodiment 5: with reference to Fig. 7 and 8.The little master drawing of plate described in the step g is curved surface V1, V2, V3, V4, V5, V6, V7 and V8 and stretches y respectively apart from generating plate, draw each plate separately, and each plate of drawing is formation state, and the profile of plate is the cutting route of blanking and processing.

What need understand is: though the foregoing description has been done more detailed explanation to the present invention; but these explanations, just to simple declaration of the present invention, rather than limitation of the present invention; any innovation and creation that do not exceed in the connotation of the present invention all fall within the scope of protection of the present invention.

Claims

1. the in-depth of bending component working drawing design is characterized in that: may further comprise the steps:

B, in the gauze of space, choose two crossing SPL TA and TB;

2. the in-depth design of bending component working drawing according to claim 1, it is characterized in that: two crossing SPL described in the step b are two SPL that curvature is bigger in the gauze of space.