Pipeline liquid phase diffusion welding clamping centering device

A liquid phase diffusion and centering device technology, applied in auxiliary devices, welding equipment, welding equipment, etc., can solve the problems of low accuracy and low efficiency, and achieve the effect of reducing stress concentration and high centering accuracy.

Inactive Publication Date: 2015-12-16
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] The pipeline diffusion welding tooling in the prior art has low centering precision and low efficiency

Method used

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  • Pipeline liquid phase diffusion welding clamping centering device
  • Pipeline liquid phase diffusion welding clamping centering device
  • Pipeline liquid phase diffusion welding clamping centering device

Examples

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specific Embodiment

[0021] Such as figure 1 , image 3 As shown, it mainly includes: jacking mechanism 1 , sliding clamping mechanism 2 , auxiliary jacking mechanism 3 , sliding mechanism 4 , fixed clamping mechanism 5 , and welding device 10 . The clamping mechanism 1 and the sliding clamping mechanism 2 support PLC programming control.

[0022] It is light in weight and compact in overall structure. It has a centrally symmetrical structure and is controlled by a hydraulic system to ensure high-precision alignment requirements.

[0023] Such as figure 2 As shown, the sliding clamping mechanism 2 and the fixed clamping mechanism 5 mainly include: a semi-open valve 6 , a hydraulic cylinder 7 , clamping claws 8 , and a V-shaped bracket 9 .

[0024] Working principle: open the valve and put the pipe in, adjust the ellipticity of the pipe by external force, then slide the clamping mechanism 2 to clamp the pipe, close the valve, open the hydraulic cylinder switch, set the program pressure, and co...

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Abstract

The invention discloses a pipeline liquid phase diffusion welding clamping centering device which comprises a sliding mechanism. The two ends of the sliding mechanism are provided with a fixed clamping mechanism and a sliding clamping mechanism respectively. A welding device is arranged in the middle portion of the sliding mechanism. An ejecting mechanism and an auxiliary ejecting mechanism are connected between the fixed clamping mechanism and the sliding clamping mechanism. Each clamping mechanism comprises a V-shaped support and a semi-opening type valve. A hydraulic cylinder and clamping jaws are arranged on the top wall of the semi-opening type valve. The auxiliary ejecting mechanism comprises a spring, a pressurizing disc and a connecting rod. Scale marks are engraved in the connecting rod. The pipeline liquid phase diffusion welding clamping centering device is efficient, saves energy, and is high in centering precision, capable of achieving smooth transition when misalignment exists and lowering stress concentration, not sensitive to misalignment effects and applicable to large oil and gas pipelines.

Description

technical field [0001] The invention relates to a pipeline liquid phase diffusion welding tool, in particular to a pipeline liquid phase diffusion welding clamping and centering device. Background technique [0002] At present, the development of industry has higher and higher requirements for welding technology, but traditional welding methods have welding defects that are difficult to overcome, such as traditional welding has higher requirements for the treatment and assembly of the parts to be welded surface, and the welding heat cycle time is long , low productivity (in some cases, there will be some side effects, such as the parent grain may grow too much), a large one-time investment in equipment, and the size of the welding work is limited by the equipment, etc. These shortcomings make its popularization and application restricted. Because of this, finding a new and efficient welding method as soon as possible has become the focus of the welding industry. Although d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/053B23K13/01
CPCB23K37/0533B23K13/01
Inventor 俞建荣马永强刘志宏岳龙瞿成雄董健李旻希
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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