CN102601567B - Method for welding special-shaped flange pipelines and welding tool - Google Patents

Method for welding special-shaped flange pipelines and welding tool Download PDF

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Publication number
CN102601567B
CN102601567B CN201210083258.3A CN201210083258A CN102601567B CN 102601567 B CN102601567 B CN 102601567B CN 201210083258 A CN201210083258 A CN 201210083258A CN 102601567 B CN102601567 B CN 102601567B
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CN
China
Prior art keywords
special
shaped flange
flange
axis
pipeline
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CN201210083258.3A
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Chinese (zh)
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CN102601567A (en
Inventor
张春雷
高远军
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宜昌船舶柴油机有限公司
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Priority to CN201210083258.3A priority Critical patent/CN102601567B/en
Publication of CN102601567A publication Critical patent/CN102601567A/en
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Publication of CN102601567B publication Critical patent/CN102601567B/en

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Abstract

Disclosed are a method for welding special-shaped flange pipelines and a welding tool. The method includes steps: firstly, assembling in a three-dimensional analog manner by the aid of software; secondly, deriving a manufacturing drawing of a special-shaped flange pipeline according to a three-dimensional model; thirdly, manufacturing various parts of a workpiece according to the drawing of the special-shaped flange pipeline; and fourthly, determining a three-dimensional position of a flange plate by the aid of the welding tool on the basis of another flange plate, and connecting the parts of the pipeline. Accordingly, the special-shaped flange pipeline is accurately welded. The method for welding the special-shaped flange pipelines and the welding tool have the advantages that the accuracy of the shape and the position of a waste gas outlet pipe of a supercharger of a diesel engine, namely the special-shaped flange pipeline, can be ensured, accordingly mounting precision of later-stage assembly is guaranteed, and the special-shaped flange pipeline is directly assembled. In addition, owing to the high accuracy of the appearance and the shape of the special-shaped flange pipeline, the method and the welding tool are also applicable to batch production of multiple parts, and production efficiency is enhanced.

Description

Special-shaped flange pipeline assembling and welding process and welding equipment frock

Technical field

The present invention relates to a kind of installation method and frock of pipeline, for example a kind of assembling and welding process and welding equipment frock that is applicable to the Special-shaped flange pipeline of low-speed diesel engine booster waste gas outlet pipe.

Background technology

Low-speed diesel engine booster waste gas outlet pipe is one of critical component with booster, blast pipe, scavenging air box assembling, by upper lower flange and connecting tube three parts, formed, general assembling and welding process is that weldering is joined at scene, is exactly mainly to consider that the parts assembling cumulative errors such as scavenging air box, blast pipe, booster can join weldering by the scene of waste gas outlet pipe and solve.Because equipped site space is narrow and small, it is low that soldering method production efficiency is joined at scene, and equipped quality is difficult to guarantee especially, not only takies final assembly plant driving and welding equipment time, and increased main frame assembling and stop the platform stand-by period; Be subject to the impact of the parts such as booster, scavenging air box, blast pipe assembling cumulative errors, scene is joined soldering method and is often existed drawing setting-out size not conform to the actual conditions to need in-site measurement phenomenon; More seriously on-the-spotly join the waste gas outlet pipe that weldering produces and there is no interchangeability, can not many centralized production.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of Special-shaped flange pipeline assembling and welding process and welding equipment frock, can guarantee the accuracy of form and position of Special-shaped flange pipe, thus the installation accuracy while guaranteeing later stage general assembly.

For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of Special-shaped flange pipeline assembling and welding process, comprises the following steps:

One, with software, carry out the step of three-dimensional simulation assembling;

Two, according to threedimensional model, derive the step of Special-shaped flange pipeline fabrication drawing;

Three, according to Special-shaped flange piping diagram paper, manufacture the step of each part of workpiece;

Four, take one of them ring flange as benchmark, adopt welding equipment frock to determine the three-dimensional position of another ring flange, and the step connecting with connecting tube part;

By above-mentioned steps, realize the accurate welding equipment of Special-shaped flange pipeline.

For a welding equipment frock for said method, workbench both sides are provided with X-axis adjustable track, and Z axis adjustable track is slidably connected by X-axis regulating block and X-axis adjustable track;

Y-axis adjustable track two ends are slidably connected by Z axis regulating block and Z axis adjustable track;

Y-axis regulating block and Y-axis adjustable track are slidably connected, and Y-axis regulating block is provided with flange location-plate, and workbench and flange location-plate are provided with a plurality of flange locating holes.

Described Y-axis adjustable track two ends are connected with Z axis regulating block by angular adjustment apparatus.

In described angular adjustment apparatus, be provided with angular turn bearing.

Described angular turn bearing comprises rolling bearing and sliding bearing;

The bottom surface of the pivot center of described angular adjustment apparatus and flange location-plate is tangent.

The pivot center of described angular adjustment apparatus is through the mid point of line between corresponding flange locating hole.

A kind of Special-shaped flange pipeline assembling and welding process provided by the invention and welding equipment frock, can guarantee low-speed diesel engine booster waste gas outlet pipe, be Special-shaped flange pipeline the accuracy of form and position, thereby the installation accuracy while guaranteeing later stage general assembly realizes the direct assembling of Special-shaped flange pipeline.Because accuracy of form and position height is also suitable for many batch productions, enhance productivity.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described.

Fig. 1 be in the present invention frock front view.

Fig. 2 be in the present invention frock right view.

Fig. 3 be in the present invention frock top view.

The right view of Fig. 4 when adopting frock welding equipment in the present invention.

The top view of Fig. 5 when adopting frock welding equipment in the present invention.

In figure: workbench 1, Z axis adjustable track 2, angular adjustment apparatus 3, X-axis regulating block 4, Y-axis adjustable track 5, flange location-plate 6, Y-axis regulating block 7, holding screw 8, flange locating hole 9, X-axis adjustable track 10, workpiece 11, angular turn bearing 12, Z axis regulating block 13.

The specific embodiment

As shown in Fig. 4,5, a kind of Special-shaped flange pipeline assembling and welding process, comprises the following steps:

One, with software, carry out the step of three-dimensional simulation assembling;

The low-speed diesel engine booster waste gas outlet pipe of take in this example describes as example; generally join at the scene in weldering process; often can find the waste gas outlet pipe made by figure when general assembly is equipped and situation that actual size is not inconsistent, can only take repair or in-site measurement way to solve.Whether the present invention is guaranteeing, under the prerequisite of low-speed diesel engine type, booster model, blast pipe, scavenging air box drawing, by CAD software, to carry out three-dimensional simulation assembling, is checking theoretically each parts can correctly assemble.

According to three-dimensional model diagram, find out the factor that affects waste gas outlet pipe assembling.If realize the assembling of waste gas outlet pipe finished product, the just accurate manufacture of the connecting port of necessary assurance and the upper and lower flange of waste gas outlet pipe, according to three-dimensional model diagram, find out and affect waste gas outlet pipe assembling various factors, relate to the assembling of blast pipe, the control of scavenging air box relative dimensions, blast pipe and booster, waste gas outlet pipe etc., to having influence on the assembling and positioning size of region of interest, screen, get rid of postwelding machining dimension, finally determine that the connecting flange of blast pipe and waste gas outlet pipe is assembled into the principal element that affects the assembling of waste gas outlet pipe finished product.

Affect the waste gas outlet pipe finished product assembling analysis of causes.From as shown in Figure 4, upper flanges dish becomes 15 degree inclination angles with the angle α of horizontal plane, and also there is eccentric throw in the axis of upper and lower end ring flange in X, Y-axis, located in connection size is difficult to measure when practical set, assembly precision is difficult to guarantee especially, and the internal diameter of upper and lower end ring flange is not identical yet, this Special-shaped flange pipeline can accurately create affect waste gas outlet pipe can finished product the main cause of assembling.

Two, according to threedimensional model, derive the step of Special-shaped flange pipeline fabrication drawing;

After booster waste gas outlet pipe and the simulation of each parts are assembled successfully, waste gas outlet pipe drawing is verified and improved to the Second Problem solving exactly, by checking and improving waste gas outlet pipe drawing, derive accurate fabrication drawing, for waste gas outlet pipe finished product welding equipment is provided by the condition that provides.

Three, according to Special-shaped flange piping diagram paper, manufacture the step of workpiece 11 each parts;

Guarantee accurately to manufacture and produce workpiece 11 each parts by drawing, wherein special-shaped connecting line adopts according to the mode of expanded view welding and makes, and the precision of other parts is controlled by processing.

Four, take one of them ring flange as benchmark, adopt welding equipment frock to determine the three-dimensional position of another ring flange, and the step connecting with connecting tube part; In assembling, common ring flange of take lower end is benchmark, for the waste gas outlet pipe connecting flange matching requirements of blast pipe, makes welding equipment frock, and after welding, upper workbench is checked in time.Concrete structure and the using method of welding equipment frock are described in detail below.

By above-mentioned steps, realize the accurate welding equipment of Special-shaped flange pipeline.

In Fig. 1 ~ Fig. 3, a kind of welding equipment frock for said method, workbench 1 both sides are provided with X-axis adjustable track 10, and Z axis adjustable track 2 is slidably connected by X-axis regulating block 4 and X-axis adjustable track 10;

Y-axis adjustable track 5 two ends are slidably connected by Z axis regulating block 13 and Z axis adjustable track 2;

Y-axis regulating block 7 is slidably connected with Y-axis adjustable track 5, and Y-axis regulating block 7 is provided with flange location-plate 6, and workbench 1 and flange location-plate 6 are provided with a plurality of flange locating holes 9.Flange locating hole 9 is for fixedly upper end or the lower end ring flange of booster waste gas outlet pipe.

On Z axis regulating block 13, Y-axis regulating block 7 and X-axis regulating block 4, be all provided with holding screw 8, for regulate put in place after the fixing position of Z axis regulating block 13, Y-axis regulating block 7 and X-axis regulating block 4.

In the scheme of optimizing, described Y-axis adjustable track 5 two ends are connected with Z axis regulating block 13 by angular adjustment apparatus 3.Structure, can make the upper flanges dish of workpiece 11 keep an inclination angle thus.For example the upper end connecting flange in booster waste gas outlet pipe and horizontal plane keep an angle α.

In described angular adjustment apparatus 3, be provided with angular turn bearing 12.Angular turn bearing 12 herein comprises rolling bearing and sliding bearing, for guaranteeing that precision preferably adopts sliding bearing.The pivot center of described angular adjustment apparatus 3 and the bottom surface of flange location-plate 6 are tangent.The pivot center of described angular adjustment apparatus 3 is through the mid point of line between corresponding flange locating hole 9.Structure, guarantees upper flanges dish fixing on flange location-plate 6 when rotated thus, and the position of the home position of its upper surface in the direction of X, Y, Z axis all can not change.

The operating procedure of welding equipment frock of the present invention is as follows:

1, lower end ring flange is put to workbench 1, with four bolts, by flange locating hole 9, locate.Thereby guarantee that lower end ring flange center line overlaps with frock reference center line.Flange locating hole 9 on workbench 1 has many groups, becomes radial arrangement, to be applicable to the lower end ring flange of different-diameter.

2, regulate the position of X-axis regulating block 4 on X-axis adjustable track 10, concrete position can determine according to the scale on X-axis adjustable track 10, behind location, position with holding screw 8 tightenings on X-axis regulating block 4.Thereby guarantee the eccentric throw of upper and lower end ring flange in X-axis.

3, regulate the position of Y-axis regulating block 7 on Y-axis adjustable track 5, behind location, position with holding screw 8 tightenings on Y-axis regulating block 7.Thereby guarantee the eccentric throw of upper and lower end ring flange in Y-axis.

4, upper flanges dish and flange location-plate 6 use bolts is fixing by flange locating hole 9 location.Thereby guarantee upper flanges dish cross centre line accuracy.Flange locating hole 9 on same flange location-plate 6 also has many groups, to adapt to the upper flanges dish of different-diameter.

5, with angle regulator, regulate the inclination angle of Y-axis adjustable track 5, thereby regulate the inclination angle of upper flanges dish, guarantee the angle of assembling between upper flanges dish and lower end ring flange.

6, regulate the position of Z axis regulating block 13 on Z axis adjustable track 2, with holding screw 8 location, thereby guarantee the height dimension between upper and lower end ring flange.

7, assemble rear positioning welding.Because welding equipment frock of the present invention has certain rigidity, therefore can also prevent welding deformation.

Welding equipment frock of the present invention is applicable to 6S35MC-C9.2,6S42MC7,6S46MC-C7, tetra-kinds of types of 6S50MC-C8, adjustable range: the X-axis eccentric adjusting of upper and lower end ring flange is ± 500mm; The Y-axis eccentric adjusting of upper and lower end ring flange is+800mm; Upper and lower end ring flange minimal fitting height is 400mm; The Z axis assembling height adjustment range of upper and lower end ring flange is 700mm; The angular adjustment of upper flanges dish is 0 ° to ± 45 °.Assembly precision and the efficiency of assembling of low-speed diesel engine booster waste gas outlet pipe have been improved greatly.

Claims (1)

1. a Special-shaped flange pipeline welding equipment frock, it,, for Special-shaped flange pipeline assembling and welding process, comprises the following steps: the step of, carrying out three-dimensional simulation assembling with software;
Two, according to threedimensional model, derive the step of Special-shaped flange pipeline fabrication drawing;
Three, according to Special-shaped flange piping diagram paper, manufacture the step of each part of workpiece (11);
Four, take one of them ring flange as benchmark, adopt welding equipment frock to determine the three-dimensional position of another ring flange, and the step connecting with connecting tube part;
It is characterized in that: workbench (1) both sides are provided with X-axis adjustable track (10), Z axis adjustable track (2) is slidably connected by X-axis regulating block (4) and X-axis adjustable track (10);
Y-axis adjustable track (5) two ends are slidably connected by Z axis regulating block (13) and Z axis adjustable track (2);
Y-axis regulating block (7) is slidably connected with Y-axis adjustable track (5), and Y-axis regulating block (7) is provided with flange location-plate (6), and workbench (1) and flange location-plate (6) are provided with a plurality of flange locating holes (9);
Described Y-axis adjustable track (5) two ends are connected with Z axis regulating block (13) by angular adjustment apparatus (3);
In described angular adjustment apparatus (3), be provided with angular turn bearing (12);
Described angular turn bearing (12) comprises rolling bearing and sliding bearing;
The bottom surface of the pivot center of described angular adjustment apparatus (3) and flange location-plate (6) is tangent;
The pivot center of described angular adjustment apparatus (3) is through the mid point of line between corresponding flange locating hole (9).
CN201210083258.3A 2012-03-27 2012-03-27 Method for welding special-shaped flange pipelines and welding tool CN102601567B (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210083258.3A CN102601567B (en) 2012-03-27 2012-03-27 Method for welding special-shaped flange pipelines and welding tool

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CN102601567B true CN102601567B (en) 2014-11-26

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CN103551792A (en) * 2013-11-15 2014-02-05 江苏鑫吴输电设备制造有限公司 Steel pipe connecting plate branch pipe assembly machine
CN104588951B (en) * 2014-12-17 2017-02-01 浙江省建设机械集团有限公司 Positioning tool and welding device for tower top lug plate of upper supporting base on tower crane
CN105345349A (en) * 2015-11-24 2016-02-24 希姆斯电梯(中国)有限公司 Locating welding tool for spiral guide rail
CN105618986B (en) * 2016-03-22 2017-05-03 上海中船三井造船柴油机有限公司 Positioning method used for assembling of supercharger and air pipe
CN106002071A (en) * 2016-07-06 2016-10-12 上海中船三井造船柴油机有限公司 Positioning device for welding pipe fitting flange at any angle in three-dimensional space
CN106695223B (en) * 2016-12-22 2018-03-30 临颍县颍机机械制造有限公司 Circle bale baling motorized shaft soldering frock
CN107971669A (en) * 2017-11-23 2018-05-01 马鞍山市飞达波纹管制造有限公司 A kind of wavy metal tube end welded flange positioner

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Owner name: QINGDAO HAIXI MARINE DIESEL CO., LTD.

Free format text: FORMER OWNER: YICHANG MARINE DIESEL ENGINE CO., LTD.

Effective date: 20150619

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Effective date of registration: 20150619

Address after: 266520 No. 501 Lijiang East Road, Qingdao economic and Technological Development Zone, Shandong

Patentee after: Qingdao Haixi Marine Diesel Engine Co., Ltd.

Address before: 443000 Xiling Road, Hubei, No. two, No. 93, Yichang

Patentee before: Yichang Marine Diesel Engine Co., Ltd.