Large-tooth-pitch staggered-tooth threaded milling cutter

Abstract

The invention discloses a large-tooth-pitch staggered-tooth threaded milling cutter. The large-tooth-pitch staggered-tooth threaded milling cutter comprises a cutter handle and a milling portion arranged at the front end of the cutter handle. The milling portion is provided with a plurality of peripheral cutting edges and spiral chip removal grooves located between every two adjacent peripheral cutting edges. A plurality of evenly-distributed trapezoidal cutting edges and first chip removal grooves located between every two adjacent trapezoidal cutting edges are arranged on the upper surfacesof the peripheral cutting edges. The adjacent trapezoidal cutting edges and the first chip removal grooves are of a mirror image crossed structure. The trapezoidal cutting edges in every two adjacentperipheral cutting edges are distributed and arranged in a staggered-tooth state. The threaded milling cutter has the advantages that the structure is simple, chip removal capability is good, the machining efficiency can be improved, the manufacturing time is saved, furthermore, the stability of the cutter can be enhanced, the service life of the cutter is prolonged, and the machining stability isgood; and the large-tooth-pitch staggered-tooth threaded milling cutter is suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of machine tool cutters in the machining process, in particular to a thread milling cutter with large tooth pitch and staggered teeth. Background technique [0002] In the process of machining, with the development of science and technology, materials such as titanium alloys, stainless steel, high-temperature alloys, and high-hardness steels have been widely used in military or civilian enterprises. When processing these materials, it is difficult to break and remove chips, and stick to the knife The phenomenon is also more serious, such as too fast tool wear. The traditional thread processing method is mainly to use a thread turning tool to turn the thread or to use a tap, a die to manually tap and buckle. When machining difficult-to-machine metal materials, the taps are often twisted or even broken in the part due to too much cutting force. Especially in the processing of long-chip materials, once the ch...

AI Technical Summary

Problems solved by technology

Among them, there are three common solid carbide thread milling cutters: full thread milling cutter, three thread milling cutter and single thread milling cutter. The main problem of using three thread and single thread milling cutter is low processing efficiency, while using Full-tooth thread milling cutter has a more serious phenomenon of tool give-up

Especially for thread milling cutters with specifications below M30 on the market, the feed speed of the milling cutter should not be too high, because the insert is screw-pressed. If the feed is too fast, the screw is easy to break, causing the screw and the insert to fly out, resulting in The tip of the knife collapses, which affects the life of the knife. In severe cases, it may even fly out at a high speed, causing personal injury and safety accidents

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