Tool for welding special-shaped workpiece

Abstract

The invention discloses a tool for a welding special-shaped workpiece, and relates to the technical field of welding tools. The tool comprises a tool table installed on a welding station of a welding machine, a first clamping table and a second clamping table are fixedly installed on the upper end face of the tool table, a clamping station is defined by the first clamping table and the second clamping table, the upper end face of the first clamping table is slidably connected with a clamping base, the tail end of the clamping base is connected with screw rods, a sliding cavity is formed in the clamping base, jacking columns are slidably connected into the sliding cavity, springs are connected to the tail ends of the jacking columns, one stress ends of the springs are connected to the cavity wall of the sliding cavity, the other stress ends of the springs are fixedly connected with the tail ends of the jacking columns, hemispherical grooves are formed in the head ends of the jacking columns, movable balls are rotationally connected into the hemispherical grooves, and the surfaces of the movable balls are provided with parallel surfaces. According to the tool, the movable balls are rotationally connected to the ends of the jacking columns in an original flexible clamp, the ends of the movable balls are provided with the parallel surfaces, and when a workpiece is clamped, the movable balls are automatically aligned with the workpiece or make contact with the surface of the workpiece, so that the movable balls are stressed in a balanced mode.

Description

technical field [0001] The invention relates to the field of welding tool technology, in particular to a tool used for welding special-shaped workpieces. Background technique [0002] For tooling fixtures for special-shaped workpieces, there are usually two design ideas in the prior art. One is to design a set of fixtures for the structure of special-shaped workpieces, and the other is to design a "universal fixture" to adapt to different types of workpieces. [0003] There are also many types of "universal fixtures". Here we only analyze one of them, which uses a floating top column to clamp the workpiece. catch. Although it solves the problem of adaptability of special-shaped workpieces, due to the different stretching lengths of each spring, the force on each part of the workpiece is inconsistent, and the service life of the springs is also inconsistent. In addition, it is difficult to adjust the tightness of the clamping. When used for welding, it may cause offset, so ...

AI Technical Summary

Problems solved by technology

Although it solves the problem of adaptability of special-shaped workpieces, due to the different stretching lengths of each spring, the force on each part of the workpiece is inconsistent, and the service life of the springs is also inconsistent. In addition, it is difficult to adjust the tightness of the clamping. When used for welding, it may cause offset, so overall, its performance needs to be improved

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