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CN101526811B - A Computer Aided Forming Method of I-section Steel Arch with Web Opening - Google Patents

A Computer Aided Forming Method of I-section Steel Arch with Web Opening Download PDF

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Publication number
CN101526811B
CN101526811B CN2009100828980A CN200910082898A CN101526811B CN 101526811 B CN101526811 B CN 101526811B CN 2009100828980 A CN2009100828980 A CN 2009100828980A CN 200910082898 A CN200910082898 A CN 200910082898A CN 101526811 B CN101526811 B CN 101526811B
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steel
flange part
web
cutting
steel arch
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CN101526811A (en
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郭彦林
王小安
窦超
兰涛
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Tsinghua University
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Tsinghua University
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Abstract

The invention relates to a computer-assisted forming method of an I-shaped section steel arch with web openings and belongs to the technical field of processing of an I-shaped section arch component. The invention is characterized in that under the control of a computer, the computer respectively controls a cutting machine, a cold bending machine and a welding machine to complete the processing of the I-shaped section steel arch with web openings through three stages of cutting, cold bending forming and contrapuntal welding in sequence. The invention has the advantages of simple, efficient and precise processing and furthest saved steel.

Description

Punch a kind of area of computer aided forming method of I-section steel arch of web
Technical field
The present invention relates to punch a kind of area of computer aided forming method of I-section steel arch of web, belong to I-section arcual component processing technique field.
Technical background
Steel that web punches arch member, if according to its design size arc blanking, the method for making of digging a hole, can stay a lot of leftover bits can't utilize, and will cause the huge waste of sheet material.
This patent proposes a kind of cutting counter-point again, directly cut the forming method of subdivision, clod wash (or simmering and bending) from the I-section member, can directly weld and form steel arch member that web punches and waste material not,, can efficiently accurately finish the processing of member by the area of computer aided moulding process.
Summary of the invention
The present invention is directed to the web I-section steel arch that punches and propose a kind of new method for making, it is a kind of cutting counter-point again, particularly a kind of new area of computer aided forming method, this method make web punch the processing of I-section steel arch become simply, efficient, accurate, and can farthest save steel.
Punch a kind of area of computer aided forming method of I-section steel arch of the web that the present invention proposes, it is characterized in that described method is to realize according to the following steps successively in a web that is made of computing machine, cutting machine, make-up machine and bonding machine punches I-section steel arch formation system:
Step (1): in described computing machine, following three control modules are set:
First control module is a cutting module, imports following parameter, the punch depth of section h of I-section steel arch of described web I-section steel arching rate radius (in the axis of the steel after the machine-shaping arch) R that punches, described web 0, the punch hole radius r of I-section steel arch of described web, and:
The cut lengths that are used for the oval line of cut of first I-steel: transverse axis half length is r Uh=r (R+h 0/ 2)/and R, the longitudinal axis half length is r Uv=r (R-r Uh)/R;
The cut lengths that are used for the oval line of cut of second I-steel: transverse axis half length is r Dh=r (R-h 0/ 2)/and R, the longitudinal axis half length is R Dv=r (R+r Dh)/R;
Obtain top flange part and lower flange part after described first I-steel cutting, the two halves scantling is identical, and it highly is h 0/ 2; Obtain top flange part and lower flange part after described second I-steel cutting, the two halves scantling is identical, and it highly also is h 0/ 2;
Measure-alike before cutting of described first I-steel and described second I-steel;
Second control module is the brake forming module, and input parameter comprises: the punch hole radius r of I-section steel arch of described web;
The 3rd control module is the jam welding connection module, and input parameter comprises: the punch hole radius r of I-section steel arch of described web I-section steel arching rate radius (in the axis of the steel after the machine-shaping arch) R that punches, described web;
Step (2): described computing machine sends the following cut lengths of described first I-steel to described cutting machine from described first control module: transverse axis half long r Uh, the longitudinal axis half long r Uv, and the height h of top flange part 0/ 2.Cutting machine cuts into top flange part and lower flange part to described first I-steel according to cut lengths, and the two halves scantling size of gained is all identical;
Step (3): described computing machine sends the following cut lengths of described second I-steel to described cutting machine from described first control module: transverse axis half long r Dh, the longitudinal axis half long r Dv, and the height h of top flange part 0/ 2.Cutting machine cuts into top flange part and lower flange part to described second I-steel according to cut lengths, and the two halves scantling size of gained is all identical;
Step (4): described computing machine is sent to described cold-bending forming machine to all input parameters from described second control module after, with described hole diameter 2r is controlled variable, and the half of member of first joist steel can obtain the punch half of member of top flange part of I-section steel arch of described web by clod wash;
Step (5): (4) described half of member to described second I-steel carries out clod wash set by step, can obtain the punch half of member of lower flange part of I-section steel arch of described web;
Step (6): described computing machine sends described bonding machine to from input parameter described in described the 3rd control module, and the half of member to first I-steel of process clod wash in step (4) and the step (5) docks welding with the half of member of second I-steel according to the following steps:
At first aim at the two halves member according to moulding position shape, described bonding machine carries out single pass to the butted line of half of member earlier and determines path of welding, then automatically will the half of member of described first I-steel and the described second I-steel half of member welding formation web I-shaped cross-section steel that punches encircle.
The web that the present invention the proposes I-section steel arch that punches proposes a kind of new method for making, make web punch the process of I shape tee section steel arch become simply, efficient, accurate, and can farthest save steel.
Description of drawings
Fig. 1 is the cutting synoptic diagram of the present invention to first I-steel and second I-steel.
Fig. 2 bends to the arch synoptic diagram for the present invention to half of member.
Fig. 3 is the welding fabrication synoptic diagram of the present invention to half of member.
Fig. 4 is the punch area of computer aided forming step block diagram of I-section steel arch of web of the present invention.
Embodiment
Punch a kind of area of computer aided forming method of I-section steel arch of web is characterized in that, by cutting contraposition again, processing is simple, efficient, accurately, and can farthest save steel.Computer control module is divided into three parts, respectively three steps of corresponding processing.At first choosing the I-steel of suitable dimension, is according to the design cut lengths I-steel to be cut in the cutting module in first control module; In second control module, the half of member of cutting open is carried out clod wash (or simmering and bending) then, make it reach design curvature; Half of arcual component is involutory up and down more at last, carries out butt welding in the 3rd control module.So far finish the punch making of I-section steel arch of web.
Below in conjunction with accompanying drawing, specify forming step:
1) works out computer control module, and be connected, form the assistant formation operating platform with facility such as cutting machine, make-up machine, bonding machines.Computer control module is divided three: first control module, second control module, the 3rd control module.
2) first control module is a cutting module.
Input parameter comprises: as shown in Figure 1, in steel arch axis after the machine-shaping, the punch radius of curvature R of I-section steel arch of web, steel arch depth of section is h 0, moulding trailing web hole radius is r.
Can obtain the size of two ellipses by COMPUTER CALCULATION: oval 1 size: the transverse axis half long r of being Uh=r (R+h 0/ 2)/and R, the longitudinal axis half length is r Uv=r (R-r Uh)/R; Oval 2 sizes: transverse axis half length is r Dh=r (R-h 0/ 2)/and R, the longitudinal axis half length is r Dv=r (R+r Dh)/R.
Choose two groups of I-steels of same size specification, be respectively first I-steel and second I-steel.Oval 1 size is transferred to cutting machine, first I-steel can be cut into two identical half of members (A) by as shown in Figure 1 line of cut according to this size; Oval 2 sizes are exported to cutting machine, second I-steel can be cut into two identical half of members (B) by as shown in Figure 1 line of cut according to this size.
3) second control module is the brake forming module.
Input parameter comprises: as shown in Figure 2, the hole radius that the brake forming trailing web punches is r.
Parameter is inputed to forming mill, with hole diameter 2r is controlled variable, the half of member of first joist steel can obtain the punch half of member of top flange part of I-section steel arch of described web by clod wash, the half of member of second joist steel can obtain the punch half of member of lower flange part of I-section steel arch of described web by clod wash, promptly as shown in Figure 2, respectively half of member A and B are carried out clod wash, can obtain half of member A ' of top flange part and the half of member B ' of lower flange part, the hole diameter of the two is 2r, can enter the 3rd control module subsequently and carry out follow-up process operation.
4) the 3rd control module is the jam welding connection module.
Input parameter comprises: as shown in Figure 3, in steel arch axis after the machine-shaping, the punch radius of curvature R of I-section steel arch of web, moulding trailing web hole radius is r.
Parameter is transferred to automatic welding machine, two halves member A ', the B ' through crooked that obtains in second control module carried out contraposition, automatic welding machine earlier need to determine the position of welding along its butted line by single pass, the two halves member can be welded automatically then and form the I-section steel arch that punches.
The forming step detailed diagram is seen Fig. 4.

Claims (1)

1.腹板开洞工形截面钢拱的一种计算机辅助成型方法，其特征在于，所述方法是在一个由计算机、切割机、成型机和焊接机构成的腹板开洞工形截面钢拱成型系统中依次按以下步骤实现的：1. A computer-aided forming method for the I-shaped cross-section steel arch with web openings, characterized in that the method is formed on a web opening I-section steel arch made of computer, cutting machine, forming machine and welding machine. The arch forming system is realized in the following steps in sequence: 步骤(1)：在所述计算机中，设置以下三个控制模块：Step (1): In the computer, set the following three control modules: 第一控制模块为切割模块，输入以下参数，所述腹板开洞工形截面钢拱曲率半径R，该曲率半径R以加工成型后的钢拱的中轴线计而得到，所述腹板开洞工形截面钢拱的截面高度h0，所述腹板开洞工形截面钢拱的洞口半径r，以及：The first control module is a cutting module, input the following parameters, the radius of curvature R of the steel arch of the I-shaped cross-section of the web opening, the radius of curvature R is obtained by calculating the central axis of the steel arch after processing, and the opening of the web The section height h 0 of the I-shaped steel arch of the hole, the opening radius r of the I-shaped steel arch with the hole in the web, and: 用于第一工字形钢的椭圆形切割线的切割尺寸：横轴半长为ruh＝r(R+h0/2)R，纵轴半长为ruv＝r(R-ruh)/R；The cutting dimension of the elliptical cutting line used for the first I-shaped steel: the half-length of the horizontal axis is r uh =r(R+h 0 /2)R, and the half-length of the vertical axis is r uv =r(Rr uh )/R ; 用于第二工字形钢的椭圆形切割线的切割尺寸：横轴半长为rdh＝r(R-h0/2)/R，纵轴半长为rdv＝r(R+rdh)/R；The cutting dimension of the elliptical cutting line used for the second I-shaped steel: the half-length of the horizontal axis is r dh =r(Rh 0 /2)/R, and the half-length of the vertical axis is r dv =r(R+r dh )/ R; 所述第一工字形钢切割后得到上翼缘部分和下翼缘部分，两半边构件尺寸相同，其高度均为h0/2；所述第二工字形钢切割后得到上翼缘部分和下翼缘部分，两半边构件尺寸相同，其高度也均为h0/2；After the first I-shaped steel is cut, the upper flange part and the lower flange part are obtained, and the two halves have the same size, and their heights are both h 0 /2; after the second I-shaped steel is cut, the upper flange part and the lower flange part are obtained. For the lower flange part, the dimensions of the two half members are the same, and their heights are also h 0 /2; 所述第一工字形钢和所述第二工字形钢在切割前的尺寸相同；The dimensions of the first I-shaped steel and the second I-shaped steel are the same before cutting; 第二控制模块为弯曲成型模块，输入参数包括：所述腹板开洞工形截面钢拱的洞口半径r；The second control module is a bending forming module, and the input parameters include: the opening radius r of the steel arch of the I-shaped cross-section with a hole in the web; 第三控制模块为对接焊接模块，输入参数包括：所述腹板开洞工形截面钢拱曲率半径R，该曲率半径R以加工成型后的钢拱的中轴线计而得到，所述腹板开洞工形截面钢拱的洞口半径r；The third control module is a butt welding module, and the input parameters include: the curvature radius R of the steel arch with the I-shaped section of the web opening, the curvature radius R is obtained by calculating the central axis of the steel arch after processing, and the web The hole radius r of the I-shaped section steel arch; 步骤(2)：所述计算机从所述第一控制模块中，把所述第一工字形钢的所述切割尺寸传送给所述切割机：横轴半长ruh，纵轴半长ruv，以及上翼缘部分的高度h0/2，切割机按照切割尺寸把所述第一工字形钢切割成上翼缘部分和下翼缘部分，所得的两半边构件尺寸大小均相同；Step (2): The computer transmits the cutting size of the first I-shaped steel to the cutting machine from the first control module: horizontal axis half-length r uh , longitudinal axis half-length r uv , and the height h 0 /2 of the upper flange part, the cutting machine cuts the first I-shaped steel into the upper flange part and the lower flange part according to the cutting size, and the obtained two half-side members have the same size; 步骤(3)：所述计算机从所述第一控制模块中，把所述第二工字形钢的所述切割尺寸传送给所述切割机：横轴半长rdh，纵轴半长rdv，以及上翼缘部分的高度h0/2，切割机按照切割尺寸把所述第二工字形钢切割成上翼缘部分和下翼缘部分，所得的两半边构件尺寸大小均相同；Step (3): The computer transmits the cutting size of the second I-shaped steel to the cutting machine from the first control module: horizontal half-length r dh , longitudinal half-length r dv , and the height h 0 /2 of the upper flange part, the cutting machine cuts the second I-shaped steel into the upper flange part and the lower flange part according to the cutting size, and the obtained two half-side members have the same size; 步骤(4)：所述计算机从所述第二控制模块中把所有输入参数传送到冷弯成型机后，以洞口直径2r为控制参数，第一工字钢的半边构件通过冷弯可获得所述腹板开洞工形截面钢拱的上翼缘部分半边构件；Step (4): After the computer transmits all input parameters from the second control module to the cold roll forming machine, the hole diameter 2r is used as the control parameter, and the half member of the first I-beam can be obtained by cold bending The half member of the upper flange part of the I-shaped cross-section steel arch with the web opening; 步骤(5)：按步骤(4)所述对所述第二工字形钢的半边构件进行冷弯，可获得所述腹板开洞工形截面钢拱的下翼缘部分半边构件；Step (5): performing cold bending on the half member of the second I-shaped steel as described in step (4), so as to obtain the half member of the lower flange part of the steel arch with the I-shaped cross-section of the web opening; 步骤(6)：所述计算机从所述第三控制模块中将所述输入参数传送给所述焊接机，按以下步骤对步骤(4)和步骤(5)中经过冷弯的第一工字形钢的半边构件与第二工字形钢的半边构件进行对接焊接：Step (6): The computer transmits the input parameters from the third control module to the welding machine, and performs the following steps on the cold-formed first I-shape in steps (4) and (5) The steel half member is butt welded with the second I-shaped steel half member: 首先按照成型位形对准两半边构件，所述焊接机先对半边构件的对接线进行一次扫描确定焊接路径，然后自动将所述第一工字形钢半边构件和所述第二工字形钢半边构件焊接形成腹板开洞工字形截面钢拱。First align the two half-side components according to the forming configuration, the welding machine first scans the butt joints of the half-side components to determine the welding path, and then automatically connects the first I-shaped steel half-side component and the second I-shaped steel half-side The components are welded to form a steel arch with an I-shaped section with a web opening.
CN2009100828980A 2009-04-24 2009-04-24 A Computer Aided Forming Method of I-section Steel Arch with Web Opening Expired - Fee Related CN101526811B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1413134A (en) * 2000-10-27 2003-04-23 三菱电机株式会社 Wire-cutting electric discharge machining method and apparatus
CN1415976A (en) * 2002-12-05 2003-05-07 上海交通大学 Laser range finding method of robot system for cutting and ruling profile steel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1413134A (en) * 2000-10-27 2003-04-23 三菱电机株式会社 Wire-cutting electric discharge machining method and apparatus
CN1415976A (en) * 2002-12-05 2003-05-07 上海交通大学 Laser range finding method of robot system for cutting and ruling profile steel

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
JP特开2005-177896A 2005.07.07
郭彦林,黄李骥.腹板开洞钢拱的平面内稳定极限承载力设计理论及方法.建筑结构学报.2007,28(3),23-31. *
黄李骥,郭彦林.腹板开洞的工形截面拱的平面内特征值屈曲性能.工程力学.2006,23(3),126-133. *

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Assignee: United steel structure construction system (Shanghai) Co., Ltd.

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