A large h-beam drilling die

Abstract

A large-scale H-beam drilling die, including an upper positioning template, a lower positioning template, a support plate, a positioning assembly and an adjustment bolt, the upper positioning template and the lower positioning template are provided with a plurality of positioning holes, the size and number of the positioning holes The size, quantity and position of the holes to be processed are the same as those of the H-beam. The support plate includes a left support plate and a right support plate. The upper positioning template is fixedly connected with the left support plate, the right support plate and the lower positioning template to form a template. the main body; the positioning assembly is arranged at one end of the main body of the template, and the adjusting bolts are evenly distributed on the upper positioning template, the lower positioning template and the support plate. A large-scale H-beam drilling die provided by the present invention can simultaneously drill holes on the upper and lower flange plates of the H-beam by setting an upper positioning template, a lower positioning template, a support plate and a positioning assembly, which not only ensures the The requirements for the coaxiality of the holes on the upper and lower flange plates meet the positional accuracy of each hole on the flange plates.

Description

technical field [0001] The invention relates to a drilling mold, in particular to a large H-shaped steel drilling mold. Background technique [0002] In the process of drilling large-scale H-shaped steel, according to actual needs, holes are often drilled on the upper and lower flanges of H-shaped steel, and the coaxiality of the holes at the upper and lower corresponding positions must meet certain accuracy requirements. Due to the weight and size of the large H-beam itself, the accuracy of the drilling position, especially the coaxiality of the upper and lower holes, is difficult to guarantee. And the existing method mainly contains two kinds: 1), the upper and lower planes are respectively marked and drilled; 2), the center line is drawn and the drilling template is drilled. These two methods are aimed at the regular H-shaped steel, and when the end face of the H-shaped steel is inclined, the positioning reference cannot be controlled, so there is a large error in the me...

AI Technical Summary

Problems solved by technology

Although the drilling accuracy can be guaranteed, since the device can only drill the upper or lower flange of the H-shaped steel, when it is necessary to drill another flange, it needs to be turned over and repeated, and the upper and lower flanges cannot be drilled. The flange plate and the lower flange plate are drilled at the same time, so the coaxiality of the upper and lower holes of the H-shaped steel is difficult to meet the accuracy requirements

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