Modularized cutter bar with replaceable head module

Abstract

The invention discloses a modularized cutter bar with a replaceable head module, and belongs to the technical field of machining cutters. The modularized cutter bar with the replaceable head module comprises a cutter body and the head module installed on the cutter body, and a cutter head and a blade are installed on the head module. The cutter body comprises a clamping part and a connecting part, at least one second spiral groove is formed in the surface of the connecting part, and the connecting part is fixedly connected with the head module; the head module comprises a mounting part, and a blade is mounted on the mounting part; a mounting groove is formed in the top end of the head module, and a detachable tool bit is mounted in the mounting groove. A plurality of tool bits with different diameters can be used on the same tool body, so that the cost is effectively saved, the drilling precision is high, the service life of the tool bits is long, the machining stability is high, and the production efficiency is high.

Description

technical field [0001] The invention relates to a modular cutter bar with a replaceable head module, which belongs to the technical field of mechanical processing cutters. Background technique [0002] Drills used in metal cutting are commonly known as twist drills. A twist drill is a tool that drills a circular hole in a workpiece by rotating it relative to a fixed axis. It is named for its chip flute in a spiral shape like a twist. Twist drills can be clamped on manual or electric hand-held drilling tools or on drilling machines, milling machines, lathes and even machining centers. Drill material is generally high-speed tool steel or hard alloy. Therefore, the popular names of traditional metal cutting drills include high-speed steel twist drills and carbide twist drills. [0003] The use of high-speed steel twist drills in the metal cutting process is relatively short-lived, low in efficiency, and poor in precision compared to the use of carbide twist drills. It has b...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, a drill bit for removing and replacing the cutter head is designed, which solves the problems of high cost and deep hole processing, and has good advantages

But, these existing drill bits with replaceable cutter heads generally have many problems

For example: when drilling mild steel, titanium, and stainless steel, some split drills that are clamped by deformation are easy to turn around during the tool retraction process and cause damage to the drill pipe, resulting in scrapping of high-value parts

Due to the high temperature and high load generated during the cutting process, this will cause the drill rod of the split drill bit clamped by deformation to reach the fatigue life limit prematurely. For example, the cutter head needs to be replaced once after 10 to 20 times of use, which will cause The clamping is not tight, which affects the drilling accuracy, affects the service life of the cutter head, and also affects the processing stability

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