Welding fixture for titanium, zirconium and titanium zirconium alloy electrode blocks

Abstract

The invention discloses a welding fixture for titanium, zirconium and titanium zirconium alloy electrode blocks. The welding fixture comprises an upper supporting plate and a lower supporting plate, wherein two clamping beams are arranged between the two supporting plates; fixed propping screw sleeves are arranged on the upper supporting plate and the lower supporting plate; fixed propping screws are arranged inside the fixed propping screw sleeves; fixed propping locating plates are arranged at the inner ends of the fixed propping screws; the fixed propping locating plates are connected with fixed propping baffle plates; and movable propping devices are arranged on the clamping beams. According to the welding fixture, fixed propping devices at the two ends are matched with the movable propping devices, so that electrode combinations with different lengths can be axially pressed and clamped conveniently, the axial tightness among the electrode blocks during welding is guaranteed, the seam is narrowed, the welding quality of the electrode blocks is improved, the centering property during radial electrode block pressing is achieved, the electrode blocks are effectively prevented from getting loose and falling off during rotary welding, the axial stress uniformity of the clamping beams is guaranteed, and the welding fixture has the characteristics of compact structure, wide application range, small volume, low cost and high reliability.

Description

technical field [0001] The invention belongs to the technical field of fixtures for welding nonferrous metals, and relates to a welding fixture for electrode blocks of titanium, zirconium and their alloys. Background technique [0002] At present, the welding production of high-quality, large-scale titanium, zirconium and their alloys must be carried out in a vacuum plasma welding box. The electrode blocks of titanium, zirconium and their alloys pressed by the press first need to be clamped with a special fixture, and then placed in a vacuum plasma welding box for welding. The welding fixtures commonly used at present include four-beam fixtures and double-beam fixtures. From the perspective of structure and use effect, the beams in the four-beam fixture are fixed in pairs, and one group can be separated in the radial direction to facilitate the discharge and clamping of the electrode block, but this kind of fixture can only be used for single The clamping of the electrode ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a welding jig for titanium, zirconium and their alloy electrode blocks, which solves the problems of the existing welding jig with complex structure, high clamping labor intensity, and high manufacturing cost.

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