V iron special for boring machine

Abstract

The invention provides a V iron special for a boring machine. The V iron special for the boring machine can be used for solving the problem that shaft rotation is difficult in the prior art, because of high friction force produced between two shaft supporting faces of the V iron and a shaft. The V iron special for the boring machine comprises two shaft supporting faces. Shaft supporting device installing holes are formed in the direction of being vertical to each shaft supporting face. A shaft supporting device is arranged in each shaft supporting installing hole. The shaft supporting device comprises an adjusting bolt and a supporting block. The adjusting bolt comprises a lower adjusting portion and an upper connecting portion. A stopping block is fixedly arranged at the tail end of the upper connecting portion. The lower portion of the supporting block is correspondingly connected with screw threads of the upper connection portion. A rolling wheel and a blocking pin shaft are arranged on the upper portion of the supporting block, wherein the blocking pin shaft is used for blocking the rotation of the support block. A blocking groove is correspondingly formed in the V iron, wherein the blocking groove is used for containing the blocking pin shaft. When the needed rotary shaft rotates to the needed processing face, the supporting device can be adjusted to jack up the shaft and after that, the shaft can be rotated. Contacting areas of the shaft and the V iron are reduced so as to reduce the friction force and lower down the rotating difficulty of the shaft. Operating efficiency is improved.

Description

technical field [0001] The invention relates to a structural improvement of a V iron used in the process of machining a shaft on a boring machine. Background technique [0002] In machining, there are often shafts with a diameter of 200mm that are milled on a boring machine, and V irons are usually used to support both ends of the shaft for processing. Due to the large diameter of the shaft, the weight is very heavy. It is difficult to rotate the other side after processing one side. The reason is that the two shaft support surfaces of the V-iron are in surface contact with the shaft, and the contact area is large. Thereby the frictional force of V-iron and shaft contact surface is big, causes shaft not to rotate freely, has reduced operating efficiency. Contents of the invention [0003] The invention provides a special V-iron for a boring machine, which can solve the problem in the prior art that the frictional force between the two shaft support surfaces of the V-iron ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a special V-iron for boring machines, which can solve the problem in the prior art that the friction between the two shaft support surfaces of the V-iron and the shaft is large, resulting in difficult rotation of the shaft

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