Process for machining deep mounting hole of slewing bearing ring

Abstract

The invention belongs to the technical field of process for machining bearing mounting holes, is applied to the field of deep hole machining of slewing bearing products, and particularly relates to aprocess for machining a deep mounting hole of a slewing bearing ring. The process comprises the following steps: machining a first hole into a through hole and machining other holes by using a U drill, wherein the machining depth is h2, the height of the slewing bearing is H, H>h2, other holes are turned over and aligned after being drilled for the first time, then the holes are drilled through the U-shaped drill, chambering machining is conducted through a flexible drill, and finally the size required by a finished product is achieved. The stability of the machining process and the stabilityof the product quality can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of processing bearing mounting holes, is applied to the field of deep hole processing of slewing bearing products, and specifically relates to a process for processing deep holes for mounting rings of slewing bearing bearings. Background technique [0002] In recent years, with the rapid development of wind power technology, wind turbines are increasingly developing towards large megawatts and offshore wind turbines, and the geometric dimensions of the products are constantly increasing. Along with the increase and deepening of the bolt hole size, the mechanical properties of materials are improved. , the difficulty of machining has also increased exponentially. The requirements for the tool and the accuracy of the equipment have put forward higher requirements. In the case of tool damage or product injury and scrapping, this article introduces a rotary The deep hole processing method for supporting products...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the rapid development of wind power technology, wind turbines are increasingly developing towards large megawatts and offshore wind turbines, and the geometric dimensions of the products are constantly increasing. Along with the increase and deepening of the bolt hole size, the mechanical properties of materials are improved. , the difficulty of machining has also increased exponentially. The requirements for the tool and the accuracy of the equipment have put forward higher requirements. In the case of tool damage or product injury and scrapping, this article introduces a rotary The deep hole processing method of support products aims to reduce processing costs and eliminate processing risks on the basis of ensuring product quality, and has extensive practical value

[0003] Taking the processing of φ45 mounting hole as an example, the original processing method needs to drill directly from one side with a flexible drill rod with a length of 6-8 times the diameter and a diameter of . Because it is high-speed drilling, the linear speed during processing is close to 150m / min , so this processing method has very high requirements on the stability of the tool and equipment and the material to be processed. Any fluctuations that may occur may lead to damage to the tip of the tool, the adapter or even the tool bar and the scrapping of the product, resulting in manufacturing The sharp rise in cost, so in order to accommodate some abnormal factors in processing

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