Adjustable single-slide-bar portable fixture for electro-slag pressure welder

Abstract

The invention relates to an adjustable single-slide-bar portable fixture for an electro-slag pressure welder, which relates to a welding machine tool. The fixture for the electro-slag pressure welder comprises a main sleeve, a lifting slide bar, a lever support plate, an operating lever, an upper movable clamp and a lower fixed clamp. The side wall of the upper end of the main sleeve is provided with an upper clamp slide groove, upper clamp positioning screws are arranged on two sides of a position, close to the middle, of the upper clamp slide groove, the lever support plate is fixedly connected to the upper end of the main sleeve, the bottom end of the lifting slide bar penetrates through a slide bar lifting hole at one end of the lever support plate to extend into the main sleeve, the other end of the lifting slide bar projects over the slide bar lifting hole to be connected with one end of the operating lever, the position, close to the middle, of the operating lever is connected onto the other end of the lever support plate through a fixing support, a steel bar pressing device is arranged on each of the front sides of the upper movable clamp and the lower fixed clamp, the backs of the upper movable clamp and the lower fixed clamp are perpendicularly connected with a connecting steel plate I and a connecting steel plate II respectively, the connecting steel plate I penetrates through the upper clamp slide groove to be fixedly connected with the lifting slide bar, and the connecting steel plate II is fixedly welded with a lower clamp welding fixing point of the lower side wall of the main sleeve.

Description

technical field [0001] The invention relates to a welding machine tool, in particular to a welding machine fixture used for electroslag pressure welding. Background technique [0002] Electroslag pressure welding is to place two steel bars in a vertical butt joint form, use the welding current to pass through the gap between the two steel bars, form an arc process and an electroslag process under the flux layer, generate arc heat and resistance heat, melt the steel bars, and pressurize. This welding method is suitable for the connection between vertical or moderately inclined steel bars in cast-in-place reinforced concrete structures. It is widely used because of its obvious economic benefits in terms of energy saving and steel saving. Most of the steel bar electroslag pressure welding fixtures used in existing projects are screw drive type double-column double-gear welding equipment, such as the vertical steel electroslag described in the Chinese patent application number 9...

AI Technical Summary

Problems solved by technology

Most of the steel bar electroslag pressure welding fixtures used in existing projects are screw drive type double-column double-gear welding equipment, such as the vertical steel electroslag described in the Chinese patent application number 94225646.8 of the authorization announcement on November 30, 1994. Pressure welding machine head, this kind of welding equipment has the following disadvantages: 1. The adjustment function is inconvenient, which is not conducive to the adjustment and alignment of the upper and lower steel bar axes; weight up to 8Kg); 3. It is not conducive to the welding of steel bars in densely populated parts of frame columns and walls, high power consumption and low work efficiency

Images