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

A multi-point positioning and hole-making device technology, which is applied in the direction of the drilling mold for the workpiece, can solve the problems of increasing the cost of hole-making tooling, lack of standardization and versatility, and reducing the efficiency of hole-making, so as to reduce the types of specifications and quantity, easy to hoist, practical effect
CN102632273AActive Publication Date: 2012-08-15中铁宝桥(扬州)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中铁宝桥(扬州)有限公司
Publication Date
2012-08-15

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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.
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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...

Claims

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