阅读说明：本技术 带陀螺仪的钢管环形缝焊接装置和方法 (Steel pipe circular seam welding device with gyroscope and method ) 是由 杨胜 许保勇 王绪平 于 2021-08-31 设计创作，主要内容包括：带陀螺仪的钢管环形缝焊接装置和方法,包括安装在钢管上环抱式链条,在链条上安装有行走小车和收链机构,行走小车上安装有升降机构和送丝机构,在升降机构升降端上连接有摆动机构,在摆动机构上安装有焊枪,在升降机构升降端上安装有陀螺仪,陀螺仪连接控制器输入端,用于驱动行走小车移动的行走电机、升降机构、送丝机构和摆动机构连接控制器输出端。本发明用于解决现有焊机在管道焊接时易脱落、走速不匀、焊接质量不稳定和效率低的问题。(The steel pipe circular seam welding device with the gyroscope comprises a hoop type chain arranged on a steel pipe, a walking trolley and a chain collecting mechanism are arranged on the chain, a lifting mechanism and a wire feeding mechanism are arranged on the walking trolley, a swinging mechanism is connected to the lifting end of the lifting mechanism, a welding gun is arranged on the swinging mechanism, the gyroscope is arranged on the lifting end of the lifting mechanism, the gyroscope is connected with the input end of a controller, and the walking motor, the lifting mechanism, the wire feeding mechanism and the swinging mechanism which are used for driving the walking trolley to move are connected with the output end of the controller. The invention is used for solving the problems of easy falling, uneven running speed, unstable welding quality and low efficiency of the existing welding machine during pipeline welding.)

1. Take steel pipe circumferential weld welding set of gyroscope, including installing embracing formula chain (9) on the steel pipe, install walking dolly (7) and receipts chain mechanism (10) on chain (9), install elevating system (5) and wire drive feed mechanism (6) on walking dolly (7), be connected with swing mechanism (3) on elevating system lift end, install welder (1), its characterized in that on swing mechanism (3): the gyroscope (4) is installed on the lifting end of the lifting mechanism, the gyroscope (4) is connected with the input end of the controller, and the walking motor, the lifting mechanism (5), the wire feeding mechanism (6) and the swinging mechanism (3) which are used for driving the walking trolley (7) to move are connected with the output end of the controller.

2. The steel pipe circular seam welding apparatus with gyroscope according to claim 1, characterized in that: the lifting end of the lifting mechanism is provided with a support, the support is provided with a camera (2), the camera (2) sends a shot picture to a computer, and the computer is in communication connection with the controller.

3. A method of using the steel pipe circular seam welding apparatus with a gyroscope of claim 2, characterized by: the gyroscope (4) detects the motion state of the welding gun (1), calculates the position coordinate of the welding gun (1) according to the motion state, and sends the coordinate to the controller, and the controller continuously adjusts and welds the angle of the welding gun (1) and the length of the welding arc by controlling the walking motor, the lifting mechanism (5), the wire feeding mechanism (6) and the swinging mechanism (3) according to the change of the space direction of the welding seam.

Technical Field

The invention relates to a steel pipe circular seam welding device with a gyroscope and a method.

Background

In the construction and installation engineering of large-scale chemical engineering and petrochemical engineering, the workload of on-site welding and installation of pipelines is very huge, and the on-site welding of the pipelines is one of important factors influencing the quality and the construction period of the whole engineering due to different diameters of the pipelines, different positions of welding seams, limited manual welding space and the like. Traditional manual welding and simply modified automatic welding machines cannot meet the requirements of large-scale engineering construction, and high-quality and high-efficiency pipeline welding equipment with better adaptability needs to be researched and developed.

At present, the common welding methods for internal and external pipelines mainly comprise shielded metal arc welding, manual tungsten electrode argon arc welding and gas metal arc welding, including active gas shielded semi-automatic welding, semi-automatic metal arc welding, self-shielded flux-cored wire argon arc welding, submerged arc welding, active gas shielded semi-automatic welding, flash welding and the like. In the west-east gas transportation project of China, the diameter of a pipeline is large, a plurality of welding seams are formed, and the adaptability to field installation welding and the welding quality requirements (including the requirements of the forming condition of the welding seam, the qualified rate of the welding seam quality, the quality requirement of the welding seam surface, the nondestructive testing requirement, the conventional physical and chemical performance requirement and the like) are strict. In the west-east pipeline project, besides flash welding, other welding methods have been used, and mainly self-shielded flux-cored wire semiautomatic welding and consumable electrode active gas shielded automatic welding.

From the aspect of pipeline welding construction at home and abroad, the field construction welding mainly adopts an all-position single-side welding double-side forming technology without a backing plate, and can adopt different welding methods and welding directions, or adopt a combined welding method and different welding directions. Aiming at large-diameter and thick-wall pipelines, in order to facilitate the adoption of a double-sided welding forming technology and further improve the speed of pipeline installation and welding, an efficient active gas shielded internal welding machine capable of carrying out root welding in the pipeline is developed in foreign countries, such as an all-position gas shielded automatic welding machine developed by NCREAST in Britain and an all-position gas shielded automatic welding machine developed by CRC company in America.

The traditional pipeline welding adopts manual electric arc welding for welding, the welding quality has direct relation with the technical level of an operator, the welding quality cannot be well guaranteed, the working efficiency is low, the working strength is very high, and the risks of falling, casualties and scalding in high-altitude operation exist.

At present, oil and gas pipelines develop towards the direction of large diameter and large wall thickness, the construction environment is complex and severe, and the adoption of an automatic pipeline welding machine is a great trend.

The automatic all-position welding of pipelines adopts a consumable electrode all-position welding technology, which firstly appears at the end of the 60 s of the 20 th century, and the American CRC company has first applied the technology to pipeline construction. At first, only the welding trolley drives the welding gun to move, and welding parameters (welding current, voltage, welding speed and the like) are manually controlled. At present, in addition to CRC corporation, VIETZ corporation, MAGNATECH corporation, veawald corporation, SERIMER DASA corporation, PWT corporation, italy, in germany, produces all-position automatic welding equipment. The twin gun welding systems of the companies P500, P600 and SERIMER DASA, which are intelligent to the CRC company, have a high level worldwide. Among them, the automatic welding machines manufactured by CRC corporation have accumulatively welded pipes as long as 50000 km. Although the devices of the manufacturers have various shapes, the devices are not limited to two methods of controlling welding parameters by a computer and manually regulating and controlling the parameters in the aspect of control.

At present, automatic pipeline welding equipment in domestic markets is monopolized by developed countries such as Europe and America, and the localization level is lower. The pipeline construction in China starts in the 70 th 20 th century, and the pipeline welding construction is stopped at the level of manual welding and semi-automatic welding for a long time. In recent years, although the pipe engineering of China is huge, the automatic all-position welding machines for the pipes with the proprietary intellectual property rights are fewer. The technical research of the pipeline welding robot in China begins in the 80 th 20 th century, and related technical research of all-position pipeline welding robots is developed by many colleges, scientific research institutions and pipeline construction units in China. Through research in recent 30 years, a great deal of research results have been obtained on the structures, control systems and the like of pipeline robots. The research institute of special construction machines and tools of the institute of science and research of petroleum and natural gas pipelines in China successfully develops the PAW 2000 pipeline all-position automatic welding machine, and completes the field pilot test on 426mm gas transmission pipelines in Youma-zheng, Italian province, 2 months in 1999. In 2005, the institute of natural gas group engineering technology von mark, Lichun, Tang Yu, Zhang Jian Hui and Zhang Tianli developed a PW-2 type pipeline all-position automatic welding robot which consists of four parts, namely a welding head (a trolley walking system, a welding gun swinging system and a welding gun height adjusting system), a welding track, a control system and a welding power supply, and the robot has a good effect in practical engineering application. A guide rail type all-position pipeline welding robot composed of four parts, namely a walking mechanism, a two-dimensional memory tracking mechanism, a welding gun swinging mechanism and a welding gun height adjusting mechanism, is designed by people of Caojun, Jiangan, Sun Yao and the like in a key laboratory of Beijing petrochemical industry institute in 2006.

2. Analyzing the development status and technological innovation demand of related industries.

The pipeline welding process is directly related to the installation quality, the construction efficiency and the input cost of the pipeline, and is related to the safety, the durability and the economic benefit of the pipeline operation. At present, the automatic welding machine is only partially adopted at home and abroad, and the pipeline welding equipment has wide prospect.

The small crawler pipeline welding machine is a pipeline welding device which is most widely applied at present, and ten sets of small crawler pipeline welding equipment are purchased by the company at one time. Compared with manual welding, the small crawler has the obvious advantages, and the welding efficiency and quality are basically guaranteed. However, in the actual engineering, the problems that the welding machine is inconvenient to install on the pipeline, the small crawler falls off in the walking process, the welding walking speed is not uniform, and the adaptability of the welding gun along with the change of the position of the welding seam is poor still exist. The deficiency of welding equipment seriously restricts the construction safety quality and the engineering progress of the company, and the demand of developing new automatic welding with better adaptability and higher automation intelligence degree is increasingly strong, but similar equipment does not exist in the market at present.

Disclosure of Invention

The invention aims to provide a steel pipe circular seam welding device with a gyroscope and a method thereof, which are used for solving the problems of easy falling, uneven walking speed, unstable welding quality and low efficiency of the existing welding machine during pipeline welding.

In order to solve the above problems, the technical solution to be solved by the present invention is:

take steel pipe circumferential weld welding set of gyroscope, including installing the formula chain of embracing on the steel pipe, install walking dolly and receipts chain mechanism on the chain, install elevating system and thread feeding mechanism on the walking dolly, be connected with swing mechanism on the elevating system lift end, install welder on swing mechanism, install the gyroscope on the elevating system lift end, gyroscope connection director input for the walking motor, elevating system, thread feeding mechanism and the swing mechanism connection director output that drive walking dolly removed.

The lifting end of the lifting mechanism is provided with a support, the support is provided with a camera, the camera sends a shot picture to a computer, and the computer is in communication connection with the controller.

A method for welding the circular seam of steel pipe with gyroscope includes such steps as detecting the moving state of welding gun by gyroscope, calculating the position coordinate of welding gun according to the moving state, and sending the position coordinate to controller.

The invention has the beneficial effects that: the invention can self-adaptively adjust the angle of the welding gun, the welding arc length and other welding parameters according to the position of the welding seam so as to ensure that good welding quality can be obtained during horizontal welding, transverse welding, vertical welding and overhead welding, and the invention can be used for welding in various crevasses and various wall thicknesses.

Meanwhile, the welding efficiency is high, the damage of arc light and smoke dust to a human body is reduced, in addition, intelligent functions of storing and memorizing, remote operation, determining the angle of a welding position and the like can be realized, and the one-time welding qualification rate is more than 99%.

Drawings

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic front view of the present invention,

figure 2 is a side view schematic of the present invention,

fig. 3 is a schematic diagram showing the connection relationship between the electric devices according to the present invention.

In the figure: the welding gun comprises a welding gun 1, a camera 2, a swinging mechanism 3, a gyroscope 4, a lifting mechanism 5, a wire feeding mechanism 6, a walking trolley 7, a pipeline 8, a chain 9 and a chain retracting mechanism 10.

Detailed Description

A steel pipe circular seam welding device with a gyroscope comprises a hoop type chain 9 arranged on a steel pipe, a walking trolley 7 and a chain retracting mechanism 10 are arranged on the chain 9, a lifting mechanism 5 and a wire feeding mechanism 6 are arranged on the walking trolley 7, a swinging mechanism 3 is connected with the lifting end of the lifting mechanism, a welding gun 1 is arranged on the swinging mechanism 3, a gyroscope 4 is arranged on the lifting end of the lifting mechanism, the gyroscope 4 is connected with the input end of a controller, a walking motor for driving the walking trolley 7 to move, the lifting mechanism 5, the wire feeding mechanism 6 and the swinging mechanism 3 are connected with the output end of the controller, wherein the lifting motor, the walking motor and the swinging motor in the swinging mechanism 3 in the lifting mechanism 5 are all servo motors, the welding device is the same as the welding device with the patent number of CN107775144A, the automatic pipeline circumambulation welding trolley and the method thereof, a support is arranged on the lifting end of the lifting mechanism, the support is provided with the camera 2, the camera 2 sends shot pictures to a computer, the computer is in communication connection with the controller, the controller is a single chip microcomputer, and the computer is a notebook computer or a tablet computer.

The use method of the welding device comprises the following steps: after the walking trolley 7 and the chain 9 are assembled on a pipeline, a worker remotely observes and shoots through the camera 2, controls the welding gun 1 to start welding through a computer, and after the welding start is finished, the walking trolley 7 walks and welds at a constant speed, simultaneously the gyroscope 4 detects the motion state of the welding gun 1, calculates the position coordinate of the welding gun 1 according to the motion state, and sends the coordinate to the controller, the controller continuously adjusts and welds the angle of the welding gun 1 and the length of a welding arc by controlling the walking motor, the lifting mechanism 5, the wire feeding mechanism 6 and the swinging mechanism 3 according to the change of the spatial position of a welding seam, and in addition, the computer records the welding condition.