CN102990282A - Machining method of intersecting line curved pipe fitting - Google Patents
Machining method of intersecting line curved pipe fitting Download PDFInfo
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- CN102990282A CN102990282A CN2012103894384A CN201210389438A CN102990282A CN 102990282 A CN102990282 A CN 102990282A CN 2012103894384 A CN2012103894384 A CN 2012103894384A CN 201210389438 A CN201210389438 A CN 201210389438A CN 102990282 A CN102990282 A CN 102990282A
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Abstract
The invention relates to a machining method of an intersecting line curved pipe fitting, which is used for machining a pipe body. The two ends of the pipe body are provided with notches with intersecting lines. The machining method comprises the following steps of: setting a crossed pipe and selecting characteristic points; cutting a straight pipe, wherein the characteristic points are ensured; and curving and molding, wherein the characteristic points and curved contact points are coplanar. According to the machining method of the intersecting line curved pipe fitting disclosed by the invention, a plurality of characteristic points are arranged, and the characteristic points and the curved contact points are coplanar in a curving process, so that the curving and molding of the pipe fitting is smoothly guaranteed. The characteristic points are formed by simulating and modeling through a computer, and in a numerical control machining process, an operator can easily identify the characteristic points; and in the curving and molding process, a curved plane is very direct to find and the operation is very easy, and the molding can be effectively guaranteed. According to the machining method disclosed by the invention, the percent of pass of intersecting line curved pipe fittings can reach more than 99% through practice examination; and the machining method is suitable for large-batch production and has a good implementation effect.
Description
Technical field
The present invention relates to the processing method of curved arc pipe fitting, relate in particular to a kind of processing method of intersection curved arc pipe fitting, be used for the processing and manufacturing of steel member.
Background technology
Flourish along with the design of construction steel structure industry, manufacturing, mounting technique, each large-and-medium size cities of recent year have emerged the steel pipe truss building of many large spaces, large span, such as conference and exhibition center, stadiums and some large public buildings etc., these Building Design moulding are unique, be not restricted to one pattern, what have is of tremendous momentum in people's visual impact, some embodiment region features, just like an art work, thereby urban landmark become.
The architectural modeling of modern steel pipe truss is unique, the steel member that some manufacture difficulty are high, technical construction is complicated occurred.In the engineering project of some steel pipe trusses; we often can meet the requirement that the existing intersection otch of some pipe rod members has again curved arc; such pipe member seems very simple; actual in manufacture process; the accuracy of member is very difficult to control; the processing sequence of making such intersection curved arc pipe fitting is: cut out intersection with the raw material straight tube at Digit Control Machine Tool first; and then be put into and carry out curved arc processing on the curved arc equipment; after processing qualified member and carrying out preservative treatment, the building-site of can delivering is installed.
The appearance of numerical control plasma cutting machine for intersection line has very perfectly solved the problem of pipe intersecting lines cutting accuracy.But for the curved arc directionality problem of intersection pipe, existing equipment does not have and can finely solve.At present a lot of steel structure enterprises are for the cutting of pipe intersecting lines, and most methods that all adopt very advanced computers programming, the cutting of Digit Control Machine Tool plasma have improved the accuracy of member processing greatly.But these advanced equipments can only cut the intersection of straight steel pipe, still can not the pipe of arc be cut, so difficulty just appears on the operation of rear road straight tube curved arc.The intersection Digit Control Machine Tool has cut a pipe very easily, accurately, yet the operation of rear road curved arc just seems so not smooth, and not knowing has this root the pipe pendulum of intersection what plane to carry out curved arc on.Can not find the characteristic point for curved arc on the straight pipe of such intersection, can't determine the curved arc plane, the processing difficulties of Here it is intersection curved arc pipe fitting.
The processing method of existing intersection curved arc pipe fitting has two kinds:
Method one: draw on computers the intersection of 1:1 size, measure characteristic point on the intersection (peak or minimum point) and the distance of curved arc plane with pipe outer wall intersection point, offer and manufacture as the curved arc data.
Should say, this method can accomplish on computers, but also has very large distance with actual processing request, and the certified products that process are few, can't satisfy the requirement of batch production.
Method two: this method is exactly method now relatively more commonly used, the pipe curved arc that at first will cut intersection bends to definite shape, the position of curved arc does not require accurately, then in the position of distance intersecting mouth certain distance (being generally about 1 meter), the steel pipe cutting is disconnected, internal lining pipe, bevel etc. are set in pipe, utilize the rotation of internal lining pipe to adjust, reach predetermined shape.
This processing method is more directly perceived, and is also very practical, but seems very clumsy.Shortcoming is also clearly: at first increased the workload of Site Welding, if run into work high above the ground, and the trouble when just having increased a lot of installations; This processing method also will note avoiding managing the node location of truss when choosing breakpoint, in order to avoid weld seam is overlapping; Simultaneously can not disconnect the intersection tube head oversize, when oversize meeting is adjusted the intersecting mouth position in rotation, cause the rod member shape deviation too large, thus general control at 1 meter with interior best.
In sum, the processing method of existing intersection curved arc pipe fitting all can't satisfy existing actual operation requirements, and control accuracy is poor, and machining process control is complicated, can't satisfy batch production requirements.
Summary of the invention
The present invention provides a kind of processing method of intersection curved arc pipe fitting just for the deficiency of prior art existence.
For addressing the above problem, the technical solution used in the present invention is as follows:
The processing method of intersection curved arc pipe fitting is processed body, and the two ends of body are provided with the breach with intersection, and described processing method may further comprise the steps:
Step 1: traffic control and selected characteristic point is set;
Computer-aided design and modeling on the breach of the two ends of body, arrange respectively traffic control, allow traffic control and body produce intersection, choose First Characteristic point and Second Characteristic point at intersection;
Step 2: the cutting straight tube is also guaranteed characteristic point;
According to modeling and simulation design result in the step 1, the relevant numerical control program of establishment is used existing Digit Control Machine Tool, cuts out the corresponding straight tube of body, on the intersection at the two ends of body respectively with First Characteristic point and Second Characteristic point;
Step 3: brake forming and guarantee characteristic point and crooked contact point coplanar;
Body is carried out bending, and body contacts with bending apparatus point respectively, and forms a plane, and First Characteristic point and Second Characteristic point are on this plane all the time.
As improvement of the technical scheme, bending apparatus in the described step 3 comprises: the first bend wheel, the second bend wheel and the 3rd bend wheel, the first bend wheel and the second bend wheel are arranged on body to be bent one side, the 3rd bend wheel is arranged on the opposite side of body to be bent, and the 3rd bend wheel is in the first bend wheel and the second bend wheel central lower position; The first bend wheel, the second bend wheel and the 3rd bend wheel shape, big or small identical, intermediate recess.
As improvement of the technical scheme, described body and the first bend wheel, the second bend wheel and the 3rd bend wheel contact site are the central point at intermediate recess position.
The present invention compared with prior art, implementation result of the present invention is as follows:
The processing method of intersection curved arc pipe fitting of the present invention, guarantees in the BENDING PROCESS that characteristic point and crooked contact point are coplanar by some characteristic points are set, thereby has guaranteed smoothly the brake forming of pipe fitting.Characteristic point adopts the Computer Simulation modeling to form, and during digital control processing, operating personnel are easy to identification, seeks plane of bending operation very directly perceived, very easy during brake forming, can effectively guarantee its moulding.Processing method of the present invention, by practice test, the qualification rate of intersection curved arc pipe fitting reaches more than 99%, is fit to produce in enormous quantities, and implementation result is good.
Description of drawings
Fig. 1 is the front view of intersection curved arc pipe fitting of the present invention;
Fig. 2 is the top view of intersection curved arc pipe fitting of the present invention;
Fig. 3 is intersection curved arc pipe fitting of the present invention and the traffic control structural representation when intersecting;
Fig. 4 is the structural representation of intersection curved arc pipe fitting of the present invention when being in the straight tube state;
Structural representation when Fig. 5 is intersection curved arc pipe fitting bending machining of the present invention.
The specific embodiment
Content of the present invention is described below in conjunction with specific embodiments.
As shown in Figure 1, be the front view of intersection curved arc pipe fitting of the present invention, Fig. 2 is its top view.Intersection curved arc pipe fitting of the present invention comprises body 1, and the profile of body 1 is crooked arcuation.The two ends of body 1 are provided with breach, and this breach is arcuation also, are used for coincideing and welding with adjacent other pipe fittings.This breach is that body 1 intersects formation with the surface of adjacent pipe fitting, has namely produced intersection.
The machine-shaping of intersection curved arc pipe fitting, the straight tube of well cutting band intersection at first, as shown in Figure 4; And then straight tube carried out bending machining, as shown in Figure 5.And the control difficult point of bending machining is: when crooked on the intersection straight tube of well cutting, can not find the plane of curved arc.Therefore, processing method of the present invention is, when cutting is with the intersection straight tube, chooses some characteristic points, guarantees when bending that again these characteristic points are on the plane of curved arc.
As shown in Figure 4, the structural representation when being in the straight tube state for intersection curved arc pipe fitting of the present invention programs with Digit Control Machine Tool and to carry out straight tube and be cut into prior art.
Structural representation during as shown in Figure 5, for intersection curved arc pipe fitting bending machining of the present invention.The equipment of intersection curved arc pipe fitting bending machining of the present invention comprises: the first bend wheel 5, the second bend wheel 6 and the 3rd bend wheel 7.The first bend wheel 5 and the second bend wheel 6 are arranged on body to be bent 1 one sides, and the 3rd bend wheel 7 is arranged on the opposite side of body to be bent 1, and the 3rd bend wheel 7 is in the first bend wheel 5 and the second bend wheel 6 central lower positions.The first bend wheel 5, the second bend wheel 6 and the 3rd bend wheel 7 shapes, big or small identical, intermediate recess.When crooked, body 1 pushes by the first bend wheel 5, the second bend wheel 6 and the 3rd bend wheel 7 intermediate recess positions, finally forms the curved arc pipe fitting of certain radian.
In order to ensure the machine-shaping with the body 1 of intersection, processing method of the present invention is as follows:
Step 1: traffic control 2 and selected characteristic point are set;
Computer-aided design and modeling on the breach of the two ends of body 1, arrange respectively traffic control 2, allow traffic control 2 and body 1 produce intersection, choose First Characteristic point 3 and Second Characteristic point 4 at intersection, as shown in Figure 3.
Step 2: the cutting straight tube is also guaranteed characteristic point;
According to modeling and simulation design result in the step 1, the relevant numerical control program of establishment is used existing Digit Control Machine Tool, cuts out the corresponding straight tube of body 1, on the intersection at the two ends of body 1 respectively with First Characteristic point 3 and Second Characteristic point 4, as shown in Figure 4.Programming with Digit Control Machine Tool is cut into prior art, and this is easy to realize.
Step 3: brake forming and guarantee characteristic point and crooked contact point coplanar;
In fact, when body 1 contacts respectively with the 3rd bend wheel 7 with the first bend wheel 5, the second bend wheel 6, the institute contact site is exactly the central point at intermediate recess position, and these three central points are known, as long as First Characteristic point 3 and 4 assurances of Second Characteristic point is coplanar with three central points, just can finish smoothly bending machining.
Because three bending points and two characteristic points are coplanar all the time, so body 1 bending radian out, just in time are the radians of design of Simulation, namely the radian of actual needs.
For an end intersecting mouth and the steel pipe curved arc of other end flat mouth, as long as add a characteristic point at an end of intersecting mouth, guarantee this characteristic point and three coplanar getting final product of bending point.
Above content is in conjunction with the detailed description made for the present invention of concrete preferred embodiment, can not assert that implementation of the present invention only limits to these explanations.For those skilled in the art, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to the scope of protection of the invention.
Claims (3)
1. the processing method of intersection curved arc pipe fitting is processed body (1), and the two ends of body (1) are provided with the breach with intersection, it is characterized in that, described processing method may further comprise the steps:
Step 1: traffic control (2) and selected characteristic point are set;
Computer-aided design and modeling on the two ends breach of body (1), arrange respectively traffic control (2), allow traffic control (2) and body (1) produce intersection, choose First Characteristic point (3) and Second Characteristic point (4) at intersection;
Step 2: the cutting straight tube is also guaranteed characteristic point;
According to modeling and simulation design result in the step 1, the relevant numerical control program of establishment, use existing Digit Control Machine Tool, cut out the corresponding straight tube of body (1), on the intersection at the two ends of body (1) respectively with First Characteristic point (3) and Second Characteristic point (4);
Step 3: brake forming and guarantee characteristic point and crooked contact point coplanar;
Body (1) is carried out bending, and body (1) contacts with bending apparatus point respectively, and forms a plane, and First Characteristic point (3) and Second Characteristic point (4) are on this plane all the time.
2. the processing method of intersection curved arc pipe fitting as claimed in claim 1, it is characterized in that, bending apparatus in the described step 3 comprises: the first bend wheel (5), the second bend wheel (6) and the 3rd bend wheel (7), the first bend wheel (5) and the second bend wheel (6) are arranged on body to be bent (1) one side, the 3rd bend wheel (7) is arranged on the opposite side of body to be bent (1), and the 3rd bend wheel (7) is in the first bend wheel (5) and the second bend wheel (6) central lower position; The first bend wheel (5), the second bend wheel (6) and the 3rd bend wheel (7) shape, big or small identical, intermediate recess.
3. the processing method of intersection curved arc pipe fitting as claimed in claim 2 is characterized in that, described body (1) is the central point at intermediate recess position with the first bend wheel (5), the second bend wheel (6) and the 3rd bend wheel (7) contact site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103894384A CN102990282A (en) | 2012-10-15 | 2012-10-15 | Machining method of intersecting line curved pipe fitting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103894384A CN102990282A (en) | 2012-10-15 | 2012-10-15 | Machining method of intersecting line curved pipe fitting |
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| CN102990282A true CN102990282A (en) | 2013-03-27 |
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| CN2012103894384A Pending CN102990282A (en) | 2012-10-15 | 2012-10-15 | Machining method of intersecting line curved pipe fitting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723205A (en) * | 2015-04-08 | 2015-06-24 | 武汉一冶钢结构有限责任公司 | Fast machining method of minor-diameter steel pipe intersecting line |
| CN113414259A (en) * | 2021-06-23 | 2021-09-21 | 江苏理工学院 | Space S-bend anti-wrinkle process for large-size multilayer composite hollow pipe |
Citations (5)
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| JPH0825116A (en) * | 1994-07-14 | 1996-01-30 | Advantest Corp | Machining method of through-hole or internal thread in sheet metal workpiece with bending work and sheet metal workpiece with bending work |
| CN1824455A (en) * | 2006-03-29 | 2006-08-30 | 詹其国 | Processing technology of sandproof screen pipe having V-shaped groove |
| WO2007121622A1 (en) * | 2006-04-24 | 2007-11-01 | Jiangsu Xingrong Hi-Tech Company Limited | A Cu/Al COMPOSITE PIPE AND A MANUFACTURING METHOD THEREOF |
| CN101767267A (en) * | 2010-03-03 | 2010-07-07 | 潮峰钢构集团有限公司 | Technology for processing curve of intersection pipeline |
| CN102632363A (en) * | 2012-04-15 | 2012-08-15 | 苏州怡信光电科技有限公司 | Method for machining hollowing hole in tool setting gauge support |
-
2012
- 2012-10-15 CN CN2012103894384A patent/CN102990282A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0825116A (en) * | 1994-07-14 | 1996-01-30 | Advantest Corp | Machining method of through-hole or internal thread in sheet metal workpiece with bending work and sheet metal workpiece with bending work |
| CN1824455A (en) * | 2006-03-29 | 2006-08-30 | 詹其国 | Processing technology of sandproof screen pipe having V-shaped groove |
| WO2007121622A1 (en) * | 2006-04-24 | 2007-11-01 | Jiangsu Xingrong Hi-Tech Company Limited | A Cu/Al COMPOSITE PIPE AND A MANUFACTURING METHOD THEREOF |
| CN101767267A (en) * | 2010-03-03 | 2010-07-07 | 潮峰钢构集团有限公司 | Technology for processing curve of intersection pipeline |
| CN102632363A (en) * | 2012-04-15 | 2012-08-15 | 苏州怡信光电科技有限公司 | Method for machining hollowing hole in tool setting gauge support |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723205A (en) * | 2015-04-08 | 2015-06-24 | 武汉一冶钢结构有限责任公司 | Fast machining method of minor-diameter steel pipe intersecting line |
| CN113414259A (en) * | 2021-06-23 | 2021-09-21 | 江苏理工学院 | Space S-bend anti-wrinkle process for large-size multilayer composite hollow pipe |
| CN113414259B (en) * | 2021-06-23 | 2022-08-16 | 江苏理工学院 | Space S-bend anti-wrinkle process for large-size multilayer composite hollow pipe |
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Application publication date: 20130327 |