Welding positioning clamp for double-air-inlet impeller and positioning method of welding positioning clamp

Abstract

The invention belongs to the technical field of fan impeller welding, and particularly discloses a welding positioning clamp for a double-air-inlet impeller. The welding positioning clamp comprises a bottom plate, a plurality of upright posts fixed to the edge of the bottom plate, and a central shaft fixed to the central position of the bottom plate, wherein a shaft support, a gasket used for accommodating a middle disc, an index plate used for accommodating blades and a pressing ring are sequentially and fixedly installed on the center shaft from bottom to top; and a locking mechanism used for limiting the position of the pressing ring and capable of pressing the pressing ring is arranged at the top of the stand column. All clamp body parts of the double-air-inlet impeller welding clamp are detachably installed on the impeller welding clamp, so that high fault tolerance in use is achieved, high-precision positioning welding of a to-be-machined double-air-inlet impeller is achieved with the bottom plate as a first positioning reference and the pressing ring as a second positioning reference, the machining efficiency is improved; the welding quality and the welding efficiency of the blades, a front disc and the middle disc are improved, and the stability of subsequent use of the double-air-inlet impeller is enhanced.

Description

technical field [0001] The invention belongs to the technical field of fan impeller welding, and in particular relates to a welding positioning fixture for double-inlet impellers and a positioning method thereof. Background technique [0002] In the prior art, such as Figure 13 , Figure 14 As shown, the double-inlet impeller of the fan includes a front plate 200, blades 100 and a middle plate 300. During the manufacturing process of the double-inlet impeller of the fan, the welding quality of the blade 100, the front plate 200 and the middle plate 300 determines the impellers. The quality of parts after welding and forming. [0003] At present, the positioning accuracy of the welding fixture used in the welding of the general double-inlet impeller is low, and sometimes some welding processes have to be manually assisted in welding, which not only causes large errors in the welding process of the impeller, but also consumes time and labor, and increases the cost of subsequ...

AI Technical Summary

Problems solved by technology

[0003] At present, the positioning accuracy of the welding fixture used in the welding of the general double-inlet impeller is low, and sometimes some welding processes have to be manually assisted in welding, which not only causes large errors in the welding process of the impeller, but also consumes time and labor, and increases the cost of subsequent impeller rework and repair. Generally speaking, the efficiency of manufacturing impellers using existing technologies is relatively low, which is decoupled from the production indicators of high-quality and rapid production of fan impellers

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