Overturning type welding clamp for hydraulic excavator bucket rod

Abstract

The invention discloses an overturning type welding clamp for a hydraulic excavator bucket rod and belongs to the field of excavator bucket rod welding. The overturning type welding clamp solves the problem that welding seams cannot be observed and the welding quality is low by means of traditional horizontal clamping. The clamp comprises two support seats. A rotating device is arranged between the two support seats. Positioning seats are correspondingly arranged on the two sides of the rotating device. Three first positioning assemblies for positioning three cylinders of the bucket rod are arranged at the two ends of each positioning seat. A second positioning assembly for positioning a U-shaped plate of the bucket rod is arranged in the middle of each positioning seat. A third positioning assembly for positioning a cover plate of the bucket rod is arranged on the portion, on one side of the corresponding second positioning assembly, of each positioning seat. By the adoption of the overturning type welding clamp for the hydraulic excavator bucket rod, the overturning type clamping mode is adopted, the matching relationship between parts is conveniently observed, and the welding quality of the product is effectively guaranteed.

Description

technical field [0001] The invention relates to the field of welding molds for buckets of excavators, and more specifically relates to a flip-type welding fixture for buckets of hydraulic excavators. Background technique [0002] In the process of manufacturing excavator sticks, the welding of the sticks is currently mostly a horizontal welding process. Specifically, the U-shaped plate and the cover plate of the stick are positioned using the step block. This horizontal clamping method , the gap between the U-shaped plate and the cover plate facing the bottom of the fixture cannot be observed, which is likely to cause welding errors; and, since the stick is in a horizontal state, it is difficult to weld the weld on the side of the stick facing the bottom of the fixture. After demoulding, the stick is firmly spot welded. However, since the demolded stick has no positioning constraints, it is easy to cause dimensional deviation during the second spot welding, which leads to pr...

AI Technical Summary

Problems solved by technology

[0002] In the process of manufacturing excavator sticks, the welding of the sticks is currently mostly a horizontal welding process. Specifically, the U-shaped plate and the cover plate of the stick are positioned using the step block. This horizontal clamping method , the gap between the U-shaped plate and the cover plate facing the bottom of the fixture cannot be observed, which is likely to cause welding errors; and, since the stick is in a horizontal state, it is difficult to weld the weld on the side of the stick facing the bottom of the fixture. After demoulding, the stick is spot welded firmly, but since the stick has no positioning constraints after demoulding, it is easy to cause dimensional deviation during the second spot welding, resulting in product quality problems

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