Laser arc hybrid welding equipment for circular seam of high-strength steel shell of missile

Abstract

The invention discloses laser electric-arc composite welding equipment for a circular seam of a high-strength steel shell of a guided missile. The laser electric-arc composite welding equipment comprises a bed body module, a cross beam module, a main transmission tank, a tail transmission tank, an inner support tool, a telescopic mechanism, a detection mechanism, a support frame, a composite head adjusting tool, a laser device, an arc welding machine, a dust removal system and a control system, wherein the main transmission tank, the tail transmission tank and the support frame are mounted on the bed body module, the main transmission tank is used for fixing a left end socket of the high-strength steel shell of the guided missile through a soft claw and supplying a rotating driving force, and the tail transmission tank is used for fixing the high-strength steel shell or a right end socket of the high-strength steel shell through a soft claw; and the telescopic mechanism is mounted on the tail transmission tank, the length of a telescopic shaft is accurately controlled by virtue of a servo motor, the inner support tool is conveyed to a welding position of the circular seam, and a transmission rod of the telescopic mechanism is driven by a hydraulic motor to supply a driving force to the inner support tool. According to the laser electric-arc composite welding equipment, the high-precision laser electric-arc composite welding of the circular seam of the high-strength steel shell of the guided missile is realized; and the laser electric-arc composite welding equipment has the advantages that the application range of a product is wide, the dimensional precision of the welded product is high, and the quality of a welding joint is high.

Description

Technical field [0001] The invention relates to a shell welding equipment in the field of aerospace technology, in particular to a missile high-strength steel shell circumferential seam laser arc hybrid welding equipment. Background technique [0002] Certain types of missile engine shells are made of high-strength steel materials with a strength of more than 1,000 MPa. They generally adopt a tailor-welded structure of the left head, 3-section spinning shell, and right head. The length of the engine is generally 4 to 7 meters, and a single shell The body length is generally 1.5 m to 2.5 m, the outer diameter is generally 300 mm to 610 mm, and the wall thickness is generally 3 mm to 11 mm. Because this type of shell is formed by spinning, the roundness and wall thickness errors are large, and the engine straightness and roundness requirements after the overall tailor-welded are higher, so the roundness of the shell welding seam and the overall welding straightness There are highe...

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Problems solved by technology

[0003] Due to the large size of the tailor-welded shell of the engine and the high precision requirements after welding, the existing technology does not have laser arc hybrid welding equipment suitable for the circular seam of the high-strength steel shell of the missile. Currently, positioning tooling and arc welding are used. Due to the arc welding The welding speed is slow, the heat input is large, and the engine casing after welding has many problems. The cost caused by the high scrap rate is relatively high, and there are problems of low precision, low efficiency and high cost.

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