Follow-up supporting tool bit device used for processing deep hole

Abstract

The invention discloses a follow-up supporting tool bit device used for processing a deep hole, which comprises a tool seat and an excircle end face turning tool arranged on the tool seat and is characterized in that a tool body with a hollow structure is fixed in the front of the tool seat; the tool body with the hollow structure is in T-shaped threaded connection with a hollow boring bar; V-shaped blocks are respectively fixed at the front and rear ends of an outer cylindrical surface of the tool body with the hollow structure; 8-16 adjusting steel balls are respectively distributed in V-shaped grooves of the two V-shaped blocks; the adjusting steel balls are externally fixed by a retainer; and a radial locking nut butts against the end face of the V-shaped block and pushes the V-shaped block to move. When the V-shaped block moves, a radial force is generated to the steel ball to adjust the diameter of the outer ring of the steel ball and lead the diameter to be equal to the diameter of an inner hole processed by the excircle end face turning tool. Therefore, the device has the positioning function, the coolant flows through the hollow boring bar and the tool body with the hollow structure and is sprayed out from a coolant hole on the tool body, so that the device has the scrap discharging and cooling function in the hole of a workpiece, and can prevent the iron scraps from scratching the processed surface of the workpiece.

Description

technical field [0001] The invention relates to a follow-up supporting cutter head device for machining deep holes on a lathe. Background technique [0002] At present, when deep holes are processed, a boring machine is mainly used to bore the hole. When the depth of the hole exceeds 1m, the required boring machine is expensive, and the machining accuracy cannot reach the design accuracy because the boring bar is too long. Contents of the invention [0003] The object of the present invention is to provide a follow-up supporting tool head device for machining deep holes on a lathe, so as to improve the precision of machining deep holes and reduce equipment costs. [0004] The technical solution adopted by the present invention is: comprising a tool seat, an outer circular end face turning tool installed on the tool seat, characterized in that a hollow structure cutter body is fixed in front of the tool seat, the hollow structure cutter body and the hollow boring bar There...

AI Technical Summary

Problems solved by technology

[0002] Existing deep holes are mainly bored by boring machines. When the depth of the hole exceeds 1m, the required boring machine is expensive, and the machining accuracy cannot reach the design accuracy because the boring bar is too long.

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