Thin-wall drill cylinder clamping device of thin-wall drill welding machine

Abstract

The invention provides a thin-wall drill cylinder clamping device of a thin-wall drill welding machine, and belongs to the technical field of machine tools. The problems that in an existing thin-walldrill welding machine, an alignment adjusting structure of a cylinder and a tool bit is complex, and the manufacturing cost is high are solved. The thin-wall drill cylinder clamping device comprises aset of rear center backer fixed to a rack, a set of front extrusion assembly is arranged on the front side of the rear center backer, and the front extrusion assembly is installed on the rack; rear side backers are arranged on the left side and the right side of the rear center backer and connected with the rack, and a driving piece capable of reducing the distance between the two rear side backers is installed on the rack; and when the thin-wall drill cylinder is clamped, the outer side face of the thin-wall drill cylinder makes line contact with the rear center backers, and the two rear side backers abut against the outer side face of the thin-wall drill cylinder. Rear side quadrant points of the thin-wall drill cylinder lean against the rear center backers, and it is guaranteed that the positions of the rear side quadrant points are the same after the thin-wall drill cylinders of different diameters are clamped.

Description

technical field [0001] The invention belongs to the technical field of machine tools, and relates to a welding machine, in particular to a thin-wall drill cylinder clamping device of a thin-wall drill welding machine. Background technique [0002] Thin-walled drills are also called water drills and hollow drills. Thin-walled drills include a cylinder and a cutter head welded on one end of the cylinder. [0003] When welding thin-walled drills, the cylinder needs to be clamped and positioned on the frame, so as to ensure the welding accuracy. For this reason, the inventor has proposed a cylinder positioning device in a thin-walled drilling and welding machine (application number: 201010173633.4), which includes a V-shaped block, a guide rod and a positioning mechanism with a positioning piece. The positioning piece is pressed on the cylinder. The barrel rests on the V-block. Due to the different diameters of the thin-walled drills, the positions of the rear quadrant points ...

AI Technical Summary

Problems solved by technology

[0005] Later, someone proposed an alignment adjustment structure between the cylinder body and the cutter head in the diamond thin-wall drill welding machine (application number: 201520297385.2). The cutter head clamping device holds the cutter head in the same thickness direction, and there is a locking structure between the slide plate and the frame that can make the slide plate stationary; although this structure can adjust the position of the V-shaped clamping block, it can realize the enlargement of the thin-wall drilling welding machine. 1. The structure is complex and the manufacturing cost is high; 2. A large amount of space behind the V-shaped clamping block is occupied, which affects the installation of other devices; 3. It is necessary to repeatedly adjust the V-shaped clamping block in actual production. The position of the clamping block and the position of the cylinder and the cutter head are repeatedly tested, and there is a problem that it takes a long time to adjust

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