An accurate positioning welding system and welding method for cutting head picks of roadheader

Abstract

The invention discloses a precise positioning welding system and welding method for cutting teeth of a roadheader cutting head, comprising a first guide rail, one end of the first guide rail is fixedly connected with a supporting device for supporting and fixing the cutting head of a roadheader; The other end of the first guide rail is provided with an adjustable bracket that can slide along the length direction of the first guide rail, and a welding torch for welding the cutting head pick of the roadheader is installed on the adjustable bracket. In the present invention, the system drives the cutting head to rotate by controlling the rotating motor to connect the chuck, and controls the distance between the welding torch and the pick seat through the sliding of the slider on the corresponding guide rail, and controls the oil input and output of the hydraulic cylinder by the control system Ensure the expansion and contraction of the telescopic rod, change the lifting angle of the welding torch, and realize the welding of picks at different angles. The connection between each pick and the pick seat is controlled by the control system, and the movement and rotation of the corresponding parts are used to ensure each angle. No deviation occurs, ensuring precise positioning with minimal errors.

Description

technical field [0001] The invention belongs to the technical field of coal and rock excavation machinery, and in particular relates to a precise positioning welding system and welding method for cutting heads of an excavation machine. Background technique [0002] The cutting head is mainly used to break rocks and coal rocks. At present, the precise welding of cutting head teeth has become one of the factors to ensure the performance of roadheaders. The cutting head teeth are positioned and distributed according to a certain helical equation. Each cutting head The angles and directions of the teeth are different, which makes the welding process of the pick more difficult, and the three-way angle of the surface is prone to deviation, which will lead to a decrease in work efficiency and serious damage to the pick during the excavation process. [0003] Therefore, it is necessary to design a precise positioning welding system for the cutting head pick of the roadheader to solv...

AI Technical Summary

Problems solved by technology

[0002] The cutting head is mainly used to break rocks and coal rocks. At present, the precise welding of cutting head teeth has become one of the factors to ensure the performance of roadheaders. The cutting head teeth are positioned and distributed according to a certain helical equation. Each cutting head The angles and directions of the teeth are different, which makes it more difficult to weld the picks, and the three-way angles on the surface are prone to deviations, which will lead to reduced work efficiency and serious damage to the picks during the excavation process

Images