Welding tool for assembling electric hoist roller stand

Abstract

The invention relates to a welding tool for assembling an electric hoist roller stand. The welding tool is characterized by comprising a bed body, a bed body guide rail, a spindle box, a lead screw, a carriage, and a tailstock device, wherein the lead screw is connected with the spindle box; the carriage is arranged on the lead screw; the tailstock device is connected with the carriage; the tailstock device and a tailstock hook plate are arranged on the bed body guide rail through a tailstock connecting plate; a bearing side supporting mechanism is arranged on a headstock disc of the spindle box through a locking nut, a locking disc, and a connecting shaft; the bearing side supporting mechanism corresponds to a positioning device on the bed body guide rail on the lower part of the bearingside supporting mechanism; a reducer side supporting mechanism is arranged on the tailstock device through a locking nut, a locking disc, and a connecting shaft; and a positioning device is arranged on the tailstock device corresponding to the upper part of the reducer side supporting mechanism. Therefore, the spindle box can drive a workpiece to rotate during assembly, each welding surface of the workpiece is made at a downward welding position, the concentricity of a bearing side supporting plate and a reducer side supporting plate on two sides of the electric hoist roll stand is ensured, the welding quality is improved, the labor intensity of the operator is greatly reduced simultaneously, the operation safety is guaranteed, and the production cost is saved.

Description

technical field [0001] The invention belongs to the technical field of crane manufacture, and in particular relates to a welding tool for assembling electric hoist reel supports. Background technique [0002] The reel support device is a very important part in electric hoist products. It is a part that connects the motor reducer, reel, electrical box and running trolley. It is a rectangular welded frame, and the reducer on both sides is assembled by beam assembly. The side support plate and the bearing side support plate are connected together, and the assembly accuracy of the reel support directly affects the quality of the entire electric hoist. In order to avoid the use of large-scale machining equipment, reduce post-welding machining, and reduce production costs, the machining parts of each part on the reel support are completed before welding. Therefore, how to ensure the concentricity of the support plates at both ends of the reel support device and reduce the overall ...

AI Technical Summary

Problems solved by technology

At present, there are 5 basic series and 4 derivative series of AS electric hoist. The lifting capacity is 0.32-50t, and the lifting height is 3.5-120m. Such a wide range of lifting height determines the corresponding increase in the length range of the reel support device. The length range of the reel support of the AS2~AS5 series is from 465mm to 1766mm, which increases the production difficulty of this part.

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