Device and method for double-faced double-arc vertical welding near-infrared vision sensing and penetration control

A double-sided double-arc, visual sensing technology, applied in the direction of arc welding equipment, manufacturing tools, welding equipment, etc., can solve the problems of groove burn-through, complicated process, weld-through defects of weld joints, etc., and achieve the goal of ensuring quality Effect

Active Publication Date: 2014-01-22
王晓宇 +1
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Problems solved by technology

[0004] Double-sided double-arc welding double-sided, double-arc synchronous simultaneous heating, forming a common molten pool, many factors affecting the welding process, complex process, insufficient welding heat input or inaccurate heating position, the root of the groove will not be fused, resulting in unsatisfactory Penetration affects the bearing capacity of the joint, excessive welding heat input, bu

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  • Device and method for double-faced double-arc vertical welding near-infrared vision sensing and penetration control
  • Device and method for double-faced double-arc vertical welding near-infrared vision sensing and penetration control
  • Device and method for double-faced double-arc vertical welding near-infrared vision sensing and penetration control

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] combine figure 1, the plate strip 17 is first leveled in the leveling device 14, planed in the edge trimmer 15, and bent on the three-point bending machine 16 to form a spiral pipe 1 to be welded, and the inner welding torch 9 is fixed on the inner welding seam PTIG head 8, the outer welding gun 11 is fixed on the outer welding seam PTIG head 10, the inner welding gun 9 is positioned at the inner side of the spiral tube 1 to be welded, the outer welding gun is positioned at the outer side of the spiral tube 1 to be welded, and the inner welding gun 9 and the outer welding gun 11 are all aligned The seam to be welded is in the middle, and the inner welding torch 9 and the outer welding torch 11 are arranged coaxially. The outer torch tungsten electrode 13 is arranged on the top, and the axes of the inner torch tungsten electrode 12 and the outer torch ...

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Abstract

The invention discloses a device and method for double-faced double-arc vertical welding near-infrared vision sensing and penetration control. The device and method are particularly suitable for online penetration control in the double-faced double-arc welding process of spiral pipes made of aluminum alloy, or high-strength steel, or stainless steel or titanium alloy and the like, and further is suitable for online penetration control in the on-site butt-joint vertical welding process of ships, oil storage tanks, nuclear power containers and the like. According to the device and method, vertical welding molten pool vision images are detected in real time in a double-faced mode, through image processing and penetration characteristic parameter extraction, information of the double-faced double-arc vertical welding root penetration process is obtained, a control model of root penetration is set up, welding currents, welding gun swing width, welding speed and other technological parameters are automatically adjusted, the welding root is controlled to be totally penetrated, and double-faced double-arc welding quality is guaranteed.

Description

technical field [0001] The invention relates to an arc welding penetration control method, in particular to a near-infrared vision sensing and penetration control device and method for double-sided double-arc vertical welding. Background technique [0002] The welding production of aluminum alloy, low-alloy high-strength steel and other spiral pipes is made by uncoiling, leveling, trimming, forming, compacting, welding, rounding and other processes through the spiral pipe production line to form spiral pipes. The welding process is The key technology of spiral pipe manufacturing, the welding quality, especially the "penetration" quality directly determines the mechanical properties of the welded joint of the spiral pipe, and determines the bearing capacity of the spiral pipe. [0003] At present, submerged arc welding technology is generally used for steel spiral pipes, relying on double-sided welding to ensure penetration, neither visual sensing nor penetration control tech...

Claims

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Application Information

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IPC IPC(8): B23K9/095B23K9/167
CPCB21C37/122B23K9/095B23K2101/06
Inventor 王晓宇李明杰
Owner 王晓宇
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