Volute welding device

Abstract

The invention discloses a volute welding device. The volute welding device comprises a frame body, a seam welding device, a positioning clamping device and a first driving device used for driving thepositioning clamping device to rotate; the positioning clamping device comprises a positioning clamping support seat, an inner supporting mechanism and an outer pressing mechanism used for pressing the outer wall of the welded volute, and an electrode matched with the shape of the inner wall of the welded volute is arranged on the inner supporting mechanism; the seam welding device comprises a welding machine and two seam welding mechanisms which are connected with the wiring end of the welding machine and are used for welding the welded volute, the two seam welding mechanisms rotate along with the rotation of the welded volute. During use, the welded volute is fixed in a spot welding mode, then the welded volute is fixed on the volute welding device, and can be welded and rotated to be matched with the work of a weld joint mechanism, so that automatic machining is realized, the labor intensity of workers is reduced, the production efficiency is improved, the weld joint is attractive and uniform, the weld joint strength is large, the connection is stable, the weld joint sealing performance is good, the leakage is avoided, the subsequent sealing treatment does not need to be subjected, and the volute welding device can be widely applied to the welding of volute.

Description

technical field [0001] The invention relates to a welding device, in particular to a welding device for processing a volute. Background technique [0002] Seam welding means that the workpiece passes between two rotating disc electrodes (roller discs) to form a continuous weld seam where the welding spots overlap before and after. The weldment is assembled into a lap joint or a diagonal butt joint and placed between the electrodes of the two rollers, and moves relative to the workpiece. The roller presses the weldment and rotates, and continuously or intermittently transmits electricity to form a continuous weld. [0003] The volute of the range hood air duct includes a coaming and side panels on both sides of the coaming. There are two welds between the two side plates and the coaming, and the welds are composed of a straight weld and a curved weld. [0004] The existing welding process of the linear section of the volute uses one of the side plates of the volute to be un...

AI Technical Summary

Problems solved by technology

[0004] The existing welding process of the linear section of the volute uses one of the side plates of the volute to be unilaterally welded to the surrounding plate, and then the other side plate is welded to the surrounding plate. This method requires workers to hold and weld, High labor intensity, need to weld twice, low efficiency, unsightly weld seam, low quality, easy to leak, need to take additional sealing measures

Images