Method for manufacturing suspension bridge tie rod

Abstract

The invention provides a method for manufacturing a suspension bridge tie rod. The method comprises the following steps of: (1) arranging a blank on a machine tool and roughly cutting the tie rod by using a forming tool; (2) tempering and aligning; (3) roughly cutting tooth form of the tie rod by using the forming tool; and (4) finely extruding the tie rod tooth form to obtain the tie rod workpiece. The completely new method for manufacturing the suspension bridge tie rod of the invention has the advantages of high glossiness of the extrusion, high fineness of the tooth form and easiness of cutting of a material by threading, guarantees the quality and also improves the efficiency. The method is a preferred scheme for manufacturing the type of tie rods with diameter of more than phi 50 and long radius ratio of between 20 and 30; and the method grantees the quality, has high manufacturing capacity and high efficiency and is suitable for large-scale use and popularization.

Description

technical field [0001] The invention relates to a machining process method, in particular to a specific manufacturing method of a suspension bridge tie rod. Background technique [0002] Such as figure 2 As shown, the suspension bridge tie rod is a rod-shaped member installed on the suspension bridge to connect and adjust the length of the cable. Both ends have a threaded structure, which is used to connect the main cable and the anchor. It is the core force-bearing component of the suspension bridge. The diameter of the suspension bridge tie rod is generally φ60mm~φ120mm, the length is 2000mm~4000mm, and its aspect ratio is 30~50 times, and the national standard / aerospace triangular thread is generally used. How to make this kind of screw with high quality and high efficiency is an important embodiment of specialization. At present, there are generally two methods for making suspension bridge tie rods, namely, cutting forming method and extrusion forming method: [0003]...

AI Technical Summary

Problems solved by technology

However, no matter which method is used, there is a problem: if the suspension bridge tie rod is extruded before quenching and tempering, the deformation of the manufactured suspension bridge tie rod is very large during quenching and tempering treatment, which cannot be corrected

If the tension rod of the suspension bridge is extruded after quenching and tempering, due to the high hardness of the material after quenching and tempering, it is difficult to extrude and deform, and the forming efficiency is very low

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