Submerged-arc welding system for inner circle and outer circle of large cylinder

Abstract

The invention discloses a submerged-arc welding system for an inner circle and an outer circle of a large cylinder, and belongs to the technical field of cylinder inner and outer circle submerged-arcwelding. The technical problem to be solved is to provide an improvement of a hardware structure of the submerged-arc welding system for the inner circle and the outer circle of the large cylinder. According to the technical scheme which can solve the technical problem, the submerged-arc welding system for the inner circle and the outer circle of the large cylinder comprises a guide rail and roundrollers arranged at the two ends of the guide rail in parallel, the round rollers are controlled and driven by a driving motor; a moving trolley is further arranged on the guide rail, an arc weldingdevice and a vehicle-mounted control cabinet are arranged on the moving trolley, the moving trolley is controlled and driven by a walking motor installed on a trolley bottom plate; and a pair of lifting stand columns, a submerged arc welding machine mounting arm and a submerged arc welding machine are arranged in the arc welding device, the lifting stand columns are specifically vertically arranged on the moving trolley, a lifting lead screw is further arranged between the two lifting stand columns, and a lifting motor is mounted at the tops of the lifting stand columns. The submerged-arc welding system for the inner circle and the outer circle of the large cylinder is installed and applied to the submerged arc welding system.

Description

technical field [0001] The invention discloses a large cylinder inner and outer circular submerged arc welding system, which belongs to the technical field of cylinder inner and outer circular submerged arc welding. Background technique [0002] At present, with the continuous expansion of the scope of use of large circular pipes and circular pressure vessels, the joints of two cylinders need to be welded. Usually, large circular pipes and circular pressure vessels are welded with butt welds. During processing, it is necessary to calculate the installation position of the automatic submerged arc welding machine according to the welding positions of the inner circles of the two butt-joint cylinders. After determining the installation position, install the automatic submerged arc welding machine at this position, hoist the welding Put the two cylinders on the roller, adjust the position of the cylinder, align the welding position with the automatic submerged arc welding machin...

AI Technical Summary

Problems solved by technology

[0002] At present, with the continuous expansion of the scope of use of large circular pipes and circular pressure vessels, the joints of two cylinders need to be welded. Usually, large circular pipes and circular pressure vessels are welded with butt welds. During processing, it is necessary to calculate the installation position of the automatic submerged arc welding machine according to the welding positions of the inner circles of the two butt-joint cylinders. After determining the installation position, install the automatic submerged arc welding machine at this position, hoist the welding Put the two cylinders on the roller, adjust the position of the cylinder, align the welding position with the automatic submerged arc welding machine, adjust the welding current, start the roller motor, drive the cylinder to rotate, and complete the welding seam of the inner circle. However, the speed control of the round roller motor basically depends on the operator’s visual observation and adjustment based on the operator’s experience. There is a certain error. After the inner circle is welded, the welding device needs to be disassembled to continue welding the outer circle, resulting in The manual assistance time of the operation is too long, the welding efficiency is low, and the welding quality is difficult to guarantee

Images