Adjustable multi-point positioning hole making device and hole making method

Abstract

The invention discloses an adjustable multi-point positioning hole making device, which comprises a hole making template, a regulating template and two bridging plates used for connecting the hole making template and the regulating template, wherein the hole making template comprises a hole making end provided with hole groups and a positioning end used for connecting the bridging plates, the regulating template comprises a hole making end provided with hole groups and a regulating positioning end used for connecting the bridging plates, one ends of the bridging plates are provided with a plurality of groups of connecting holes matched with positioning holes of the hole making template, each group of connecting holes are in arrangement with certain distances between the front and the back, and the other ends of the bridging plates are provided with bridging holes. The adjustable multi-point positioning hole making device adopting the technical scheme has the advantages that the universality is high, the kind and the number of the hole making device can be recued, the tooling manufacture cost is reduced, and the standard production requirement of the hole making in the large-scale manufacture process is met. The invention also discloses a hole making method utilizing the device, the method is simple and feasible, and the hole making is precise.

Description

technical field [0001] The invention relates to an adjustable multi-point positioning hole-making device for making holes in bridge members such as large-scale steel truss girders and steel truss arches, and a hole-making method using the device. Background technique [0002] In the design of modern bolted railway steel truss girder bridges, the upper and lower chord sections of the main truss and the standard design section are generally used to achieve the overall arching requirements of the truss by changing and adjusting. Camber adjustment can be achieved by changing the gusset plate or member length. When the design adopts the adjustment of changing the length of the rod, because the hole spacing between the high-strength bolt hole groups at both ends of the rod changes and the adjustment amount is different, it lacks standardization and versatility, which brings great harm to the hole making in factory manufacturing. inconvenient. Simultaneously, it also leads to a w...

AI Technical Summary

Problems solved by technology

When the design adopts the adjustment of changing the length of the rod, because the hole spacing between the high-strength bolt hole groups at both ends of the rod changes and the adjustment amount is different, it lacks standardization and versatility, which brings great harm to the hole making in factory manufacturing. inconvenient

At the same time, it also leads to a wide variety of hole-making tooling specifications, which increases the manufacturing cost of the hole-making tooling and reduces the hole-making efficiency.

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