Welding tool for engine base and rack of diesel engine

Abstract

The invention discloses a welding tool for an engine base and a rack of a diesel engine. The welding tool comprises a rotating frame which can rotate along a horizontal axis and is fixed, wherein a horizontal supporting beam is arranged in the rotating frame, a plurality of tensioning and fixing mechanisms which can slide along the supporting beam are installed on the supporting beam, each tensioning and fixing mechanism comprises a beam body, the two ends of each beam body are connected with pulling plates respectively to form a U-shaped structure, the supporting beam is located between the two pulling plates, first pin holes are formed in the ends, away from the beam body, of the pulling plates so as to be matched with second pin holes in a workpiece, the pulling plates can be connected with the workpiece through pin shafts respectively, and a space between the beam body and the supporting beam can be filled with wedge iron. By using the welding tool disclosed by the invention, turnover of the large-load engine base of the diesel engine is achieved conveniently, and a foundation is provided for balance of the engine base of the diesel engine.

Description

technical field [0001] The disclosure belongs to the technical field of geotechnical engineering, and in particular relates to a welding tool for a diesel engine base and frame. Background technique [0002] The statements herein merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] At present, in the welding process of diesel engine bases and frames, the bases and frames used as workpieces are mostly assembled as a whole and then turned and shifted by driving to realize welding in the flat welding position. During the welding process of machine base and frame, at least six flips are required, and frequent flipping of large structural parts poses a greater safety risk. [0004] In some turning tools known to the inventor that can actively realize the turning and shifting of the workpiece to be welded, bolts are generally used to fix the workpiece and the turning tool, so that the workpiece and the suppo...

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Problems solved by technology

[0005] However, in the field of marine diesel engines, the weight of the base and frame products is often more than 10 tons. The conventional method of bolting requires large-diameter bolts, a lot of force and a spacious operating space. In the limited operating space of the turning tool, Installation and disassembly are quite laborious, and the bolts are under high load for a long time to aggravate their wear and deformation, which brings safety hazards

[0006] And when using bolt connection conventionally, there are bolt holes at the web of the workpiece, and it is also necessary to reserve screw holes as the support beam or reserve screw holes on the externally welded steel plate. This method makes the support beam only suitable for one For workpieces of different types, when the distance between the adjacent webs of the workpiece changes, or the position of the bolt holes in the web changes, it is necessary to process and replace different support beams, which is complicated to disassemble

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