CN102794551A - Automatic welding equipment and welding method for safety end connector of connecting pipe of nuclear power equipment - Google Patents
Automatic welding equipment and welding method for safety end connector of connecting pipe of nuclear power equipment Download PDFInfo
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- CN102794551A CN102794551A CN201210326646XA CN201210326646A CN102794551A CN 102794551 A CN102794551 A CN 102794551A CN 201210326646X A CN201210326646X A CN 201210326646XA CN 201210326646 A CN201210326646 A CN 201210326646A CN 102794551 A CN102794551 A CN 102794551A
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Abstract
The invention provides automatic welding equipment and a welding method for a safety end connector of a connecting pipe of nuclear power equipment. The equipment comprises a sensor, a control system electrically connected with the sensor, an electric double-servo slide block electrically connected with the control system, a welding machine fixedly connected with the electric double-servo slide block, and an electrode arranged at the lower end of the welding machine, wherein the sensor is provided with a probe which is tightly adhered to the side wall of a workpiece; and the electrode is placed in a slope opening of the workpiece to be machined. According to the automatic welding equipment disclosed by the invention, an automatic tracking and controlling system is mounted on an argon tungsten-arc welding machine head, so that the electrode is located in an optimal position all the time, and the welding quality and the welding efficiency are greatly improved; and the continuous product welding can be carried out, post-welding repairing amount is greatly reduced, and the occurrence rate of quality risks is reduced.
Description
Technical field
The present invention relates to nuclear power generating equipment, be specifically related to a kind of equipment and method that adopts the nuclear power generating equipment adapter safe end joint automatic tungsten anode argon arc welding of automatic tracking system.
Background technology
The tun of nuclear island of nuclear power station main equipment; As the housing of equipment such as reactor pressure vessel, steam generator and voltage-stablizer, be that low-alloy high-strength steel is processed by the material model; And the various pipelines that are connected with nuclear vessel are austenitic stainless steel mostly; For guaranteeing the quality of nuclear power generating equipment, generally meeting elder generation elder generation's weldering the preceding paragraph stainless steel tube on the adapter termination of housing is called safe end.
According to nuclear equipment safe class and Structural Design Requirement, the autompulse argon tungsten-arc welding is adopted in the safe end welding.
Automatic tracking system is not used in existing nuclear power safe end welding, relies on operator's oneself judgement and observation fully.Because the groove in the narrow gap of safe end has the characteristics of " dark, narrow ", so often in welding process, very easily cause electrode to touch the groove sidewall, causes the generation of weld defect, weld seam is reprocessed often, and there is very big risk in welding quality.That is to say, very high because the safe end groove belongs to narrow gap deep groove for the status requirement of electrode, rely on artificial observation and judgement can not satisfy accuracy requirement fully to electrode position.
Summary of the invention
The purpose of this invention is to provide a kind of nuclear power generating equipment and take over safe end joint automatic welding device and welding method, in order to guarantee accuracy, in welding equipment, increased automatic tracking system, thereby guaranteed the accurate welding of the narrow gap of nuclear power deep groove workpiece.
For achieving the above object, the invention provides a kind of nuclear power generating equipment and take over safe end joint automatic welding device, this equipment comprises:
Sensor, this sensor has probe, and this probe is close to the sidewall that is arranged on workpiece;
The control system that is connected with sensor electrical;
The electronic two servo slide blocks that are electrically connected with the control system;
The welding machine that is fixedly connected with these electronic two servo slide blocks;
Be arranged on the electrode of welding machine lower end, this electrode places the groove of workpiece to be processed.
Above-mentioned nuclear power generating equipment is taken over safe end joint automatic welding device; Wherein, This welding machine is through the carriage fixed position; This carriage is fixedly installed between these electronic two servo slide blocks and the welding machine, is fixedly connected with electronic two servo slide blocks, welding machine respectively, makes electronic two servo slide block drive welding machine through carriage and moves.
The present invention also provides a kind of method that adopts above-mentioned nuclear power generating equipment to take over safe end joint automatic welding device welding work pieces, and this method comprises:
Step 3; Workpiece is subjected to displacement in welding process; Sensor will capture the signal that workpiece is subjected to displacement through probe, and this signal is transferred to the control system, control electronic two servo slide blocks by the control system automatically according to the displacement of workpiece and carry out corresponding displacement; The drive welding machine moves, and makes electrode remain at best position; Accomplish until welding.
The present invention will be used for the argon tungsten-arc welding in the narrow gap of nuclear power safe end from motion tracking, control system; Thereby automatic tracking system can be obtained the spatial position change amount of workpiece and feed back; Guarantee the multi-functional and high-precision tracking and the measurement of the workpiece in the running, and control.
The present invention is installing on the tungsten argon arc welding head after motion tracking, control system; Make electrode be in the optimum position all the time, improved welding quality and welding efficiency greatly, can carry out uninterrupted product welding; Significantly reduce the postwelding amount of reprocessing, reduce the incidence of quality risk.
Description of drawings
Fig. 1 is the safe end bevel for welding form sketch map that the present invention was suitable for.
Fig. 2 is the system schematic that a kind of nuclear power generating equipment of the present invention is taken over safe end joint automatic welding device.
Fig. 3 is the annexation sketch map between electronic two servo slide blocks of the present invention, carriage and the welding machine.
The specific embodiment
Do explanation further below in conjunction with accompanying drawing and embodiment specific embodiments of the invention:
The tankage of manufacturing of the present invention is taken over the safe end bevel for welding form of being selected for use, and is as shown in Figure 1, has the characteristics of narrow gap deep groove.
As shown in Figure 2, be the system schematic that a kind of nuclear power generating equipment of the present invention is taken over safe end joint automatic welding device, this equipment comprises:
Sensor 10, this sensor 10 has probe 11, and this probe 11 is close to the sidewall that is arranged on workpiece 1;
The control system 20 that is electrically connected with sensor 10;
The electronic two servo slide blocks 30 that are electrically connected with control system 20;
The welding machine 40 that is fixedly connected with these electronic two servo slide blocks 30; In some preferred embodiments; This welding machine 40 is through carriage 42 fixed positions; This carriage 42 is fixedly installed between these electronic two servo slide blocks 30 and the welding machine 40; Is fixedly connected with electronic two servo slide block 30, welding machine 40 respectively, as shown in Figure 3, make electronic two servo slide block 30 move through carriage 42 drive welding machines 40;
Be arranged on the electrode 41 of welding machine lower end, this electrode 42 places the groove 2 of workpiece to be processed 1.
Automatic following control system of the present invention is a GMH associating tracking control unit; By power supply (not shown), sensor unit, control system, electronic two servo slide blocks (promptly; Crosshead shoe) together, formed an associating tracking system that is easy to use in welding automatically.Wherein, also comprised the information judgment component in the control system, crosshead shoe is as the control displacement component.This tracking system can the feedback according to sensor be regulated the welding position automatically in welding process, reduce artificial reparation adjustment to the welding position to greatest extent, and the head of welding machine can remain at a good welding position in welding process.
Welding head is installed on the carriage, and carriage is connected on electronic two servo slide block device, sees Fig. 3 for details, and head can move up and down.Sensor is parts the most key in the whole system, can transmit signal to the control system, sends the how instruction of adjusting slider.Before operating personnel weld the pointer of welding head and sensor is moved on the tram of weld seam, system just begins from motion tracking, controls the position of welder head through the signal of sensor, and assurance electric arc is in the optimum position all the time.
In the some embodiments of the present invention, the tracking system major parameter is:
Control voltage 42V AC 50-60Hz
Power supply 450 VA
Sensor (standard) susceptibility ± 0.1 mm
Carriage impulse stroke (the removable up and down displacement of carriage) 300mm
Workpiece rotates on deflection machine during welding, and electrode is in the groove, and the probe of sensor is close to the sidewall of workpiece; Be subjected to displacement like workpiece in welding process, make electrode not at claimed range, at this moment sensor will capture the signal that workpiece is subjected to displacement; Be sent to the control system then; Automatically control electronic slide block by the control system according to the displacement of workpiece corresponding displacement also takes place, the welding machine that drives on the carriage moves, thereby makes electrode be in an optimum position always.
The present invention is installing on the tungsten argon arc welding head after motion tracking, control system; Make electrode be in the optimum position all the time, improved welding quality and welding efficiency greatly, can carry out uninterrupted product welding; Significantly reduce the postwelding amount of reprocessing, reduce the incidence of quality risk.
Although content of the present invention has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be conspicuous.Therefore, protection scope of the present invention should be limited appended claim.
Claims (3)
1. a nuclear power generating equipment is taken over safe end joint automatic welding device, it is characterized in that this equipment comprises:
Sensor (10), this sensor (10) has probe (11), and this probe (11) is close to the sidewall that is arranged on workpiece;
The control system (20) that is electrically connected with sensor (10);
The electronic two servo slide blocks (30) that are electrically connected with control system (20);
The welding machine (40) that is fixedly connected with these electronic two servo slide blocks (30);
Be arranged on the electrode (41) of welding machine (40) lower end, this electrode (41) places the groove (2) of workpiece to be processed (1).
2. nuclear power generating equipment as claimed in claim 1 is taken over safe end joint automatic welding device; It is characterized in that; This welding machine (40) is through carriage (42) fixed placement; This carriage (42) is fixedly installed between these electronic two servo slide blocks (30) and the welding machine (40), makes electronic two servo slide block (30) drive welding machine (40) through carriage (42) and moves.
3. method that adopts the described nuclear power generating equipment of claim 1 to take over safe end joint automatic welding device welding work pieces is characterized in that this method comprises:
Step 1 places the groove of workpiece to be processed with electrode, and the probe of sensor is close to the sidewall of workpiece;
Step 2 is opened welding machine and control system, begins welding;
Step 3; Workpiece is subjected to displacement in welding process; Sensor will capture the signal that workpiece is subjected to displacement through probe, and this signal is transferred to the control system, control electronic two servo slide blocks by the control system automatically according to the displacement of workpiece and carry out corresponding displacement; The drive welding machine moves, and makes electrode remain at best position; Accomplish until welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210326646XA CN102794551A (en) | 2012-09-06 | 2012-09-06 | Automatic welding equipment and welding method for safety end connector of connecting pipe of nuclear power equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210326646XA CN102794551A (en) | 2012-09-06 | 2012-09-06 | Automatic welding equipment and welding method for safety end connector of connecting pipe of nuclear power equipment |
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| CN102794551A true CN102794551A (en) | 2012-11-28 |
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| CN201210326646XA Pending CN102794551A (en) | 2012-09-06 | 2012-09-06 | Automatic welding equipment and welding method for safety end connector of connecting pipe of nuclear power equipment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990202A (en) * | 2012-11-30 | 2013-03-27 | 大连船舶重工集团有限公司 | Equipment for realizing vertical electro-gas welding by using water-cooled type back slide block |
| CN104084678A (en) * | 2014-07-25 | 2014-10-08 | 哈电集团（秦皇岛）重型装备有限公司 | Full-position connecting pipe and safety end circular seam welding method achieved through tungsten electrode inert gas arc welding |
| CN105643072A (en) * | 2016-03-31 | 2016-06-08 | 哈电集团（秦皇岛）重型装备有限公司 | Gun body of welding gun of welding head |
| CN105643064A (en) * | 2016-03-31 | 2016-06-08 | 哈电集团（秦皇岛）重型装备有限公司 | Tungsten electrode system of welding machine head |
| CN105643073A (en) * | 2016-03-31 | 2016-06-08 | 哈电集团（秦皇岛）重型装备有限公司 | Limitless-rotation narrow-gap welding head |
| CN105643060A (en) * | 2016-03-31 | 2016-06-08 | 哈电集团（秦皇岛）重型装备有限公司 | Wire feeding system for welding head |
| CN106670622A (en) * | 2017-01-12 | 2017-05-17 | 上海电气核电设备有限公司 | U-shaped tube axial movement detecting device and method of tube-tube sheet welding system |
| CN110977232A (en) * | 2020-01-03 | 2020-04-10 | 东方电气(广州)重型机器有限公司 | Welding method for cylinder and safety end |
| CN113649671A (en) * | 2021-08-02 | 2021-11-16 | 岭澳核电有限公司 | Nuclear power station BOSS head welding seam drainage, leaking stoppage and repair method, equipment and medium |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990202B (en) * | 2012-11-30 | 2015-07-15 | 大连船舶重工集团有限公司 | Equipment for realizing vertical electro-gas welding by using water-cooled type back slide block |
| CN102990202A (en) * | 2012-11-30 | 2013-03-27 | 大连船舶重工集团有限公司 | Equipment for realizing vertical electro-gas welding by using water-cooled type back slide block |
| CN104084678A (en) * | 2014-07-25 | 2014-10-08 | 哈电集团（秦皇岛）重型装备有限公司 | Full-position connecting pipe and safety end circular seam welding method achieved through tungsten electrode inert gas arc welding |
| CN104084678B (en) * | 2014-07-25 | 2016-06-22 | 哈电集团（秦皇岛）重型装备有限公司 | Adapter and safe end circumferential weld all positon gas tungsten arc welding welding method |
| CN105643073B (en) * | 2016-03-31 | 2018-01-30 | 哈电集团（秦皇岛）重型装备有限公司 | Endless-rotating narrow gap welding head |
| CN105643072A (en) * | 2016-03-31 | 2016-06-08 | 哈电集团（秦皇岛）重型装备有限公司 | Gun body of welding gun of welding head |
| CN105643064A (en) * | 2016-03-31 | 2016-06-08 | 哈电集团（秦皇岛）重型装备有限公司 | Tungsten electrode system of welding machine head |
| CN105643073A (en) * | 2016-03-31 | 2016-06-08 | 哈电集团（秦皇岛）重型装备有限公司 | Limitless-rotation narrow-gap welding head |
| CN105643060A (en) * | 2016-03-31 | 2016-06-08 | 哈电集团（秦皇岛）重型装备有限公司 | Wire feeding system for welding head |
| CN105643064B (en) * | 2016-03-31 | 2018-01-30 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of tungsten electrode system of welding head |
| CN105643060B (en) * | 2016-03-31 | 2018-01-30 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of wire feed system of welding head |
| CN106670622A (en) * | 2017-01-12 | 2017-05-17 | 上海电气核电设备有限公司 | U-shaped tube axial movement detecting device and method of tube-tube sheet welding system |
| CN110977232A (en) * | 2020-01-03 | 2020-04-10 | 东方电气(广州)重型机器有限公司 | Welding method for cylinder and safety end |
| CN110977232B (en) * | 2020-01-03 | 2021-09-17 | 东方电气(广州)重型机器有限公司 | Welding method for cylinder and safety end |
| CN113649671A (en) * | 2021-08-02 | 2021-11-16 | 岭澳核电有限公司 | Nuclear power station BOSS head welding seam drainage, leaking stoppage and repair method, equipment and medium |
| CN113649671B (en) * | 2021-08-02 | 2023-10-13 | 岭澳核电有限公司 | Nuclear power station BOSS head weld joint drainage plugging repair method, equipment and medium |
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Application publication date: 20121128 |