Gas shield welding device for machining of parts of harvester

Abstract

The invention discloses a gas shield welding device for machining of parts of a harvester. The gas shield welding device comprises a base; telescopic rods are installed on two sides of the top of thebase; fixing blocks are installed on the tops of the two telescopic rods; a threaded rod is installed between the two fixing blocks through a bearing; slide rods are installed on the upper side and the lower side of the threaded rod; one end of the threaded rod is connected with an output shaft of a motor; the parts of the harvester can be clamped on a workbench through a clamping device; the motor drives the threaded rod to rotate; the threaded rod rotates to drive a sliding block to axially move, so that a welding gun is driven to axially move, radial movement is achieved through stretchingout and drawing back of the telescopic rods, and then spot welding work of the parts of the harvester is achieved; and a gas shielding cover is arranged at the head portion of the welding gun, a venthole of the gas shielding cover is at the bottom of a cover body, released argon, carbon dioxide and inert gas are distributed on weld joints and edges thereof, the weld joints and the edges thereof are prevented from being oxidized and blackening, and the appearance and quality of the weld joints are improved accordingly.

Description

technical field [0001] The invention relates to a gas shielded welding device, in particular to a gas shielded welding device for processing harvester parts. Background technique [0002] The Harvester was invented by Cyrus McCormick. Harvester It is an integrated machine for harvesting crops. Harvesting, threshing and concentrating the grains into the storage bin at one time, and then transporting the grains to the transport vehicle through the conveyor belt. Manual harvesting can also be used to spread the stalks of rice, wheat and other crops in the field, and then use grain harvesting machinery to pick up and threshing. Crop harvesting machinery for harvesting grains and stalks of cereal crops such as rice and wheat. Including harvesters, windrowers, balers, grain combines and grain threshers, etc. Grain harvesting machinery is developed on the basis of various harvesting and threshing tools. [0003] During the processing of the harvester parts, it is necessary to ...

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Problems solved by technology

[0003] During the processing of the harvester parts, it is necessary to weld them. In order to improve the efficiency and the quality of the weld, automatic welding is generally used. The traditional welding method causes the weld and its edges to be oxidized and blackened, which affects the appearance. The oxidized part of the edge is manually polished, which is time-consuming and laborious, and affects the appearance and weld quality

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