Turning blade for machining small parts

Abstract

The invention discloses a turning blade for machining small parts. The turning blade comprises a blade body. The blade body has an upper surface, a lower surface and side surfaces; corresponding to the arc cutting edge, a first protrusion in the shape of a circular truncated cone and a second protrusion in the shape of an inverted V are sequentially arranged in the direction from the front cutter face to the middle of the blade body, and the first protrusion and the second protrusion are of a symmetrical structure along the angular bisector of the acute angle portion of the blade body. The first bulge and the second bulge respectively comprise a top surface and a side surface; the top face position of the first protrusion is higher than the position of the arc cutting edge, and the top face position of the second protrusion is higher than the top face position of the first protrusion. Specific protruding structures are designed in the chip containing grooves, so that enough chip containing space is guaranteed, meanwhile, the sharpness of the cutter is enhanced, the effect of the cutter on cuttings is enhanced, the cuttings can be effectively controlled while small-feeding and small-cutting deep machining and cutting depth change of small parts can be achieved, and the service life of the cutter is prolonged. The service life of the cutter and the workpiece surface quality are improved.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to a turning insert for processing small parts. Background technique [0002] A cutting tool is a tool used for cutting in mechanical manufacturing, also known as a cutting tool. There are many kinds of tools, such as tools for machining various external surfaces, tools for hole machining, tools for thread machining, tools for gear machining, tools for cutting off and so on. Turning insert is a tool for turning rotating workpieces. Small-diameter parts are typical workpieces in 3C, automotive, medical, hydraulic and other industries. In 3C and medical industries, small-diameter parts are high-precision, small-size Products have extremely high requirements on product dimensional accuracy and surface quality. Small feed and small depth of cut are often used during processing, and processing is difficult, so higher requirements are placed on tool performance. [0003] At this s...

AI Technical Summary

Problems solved by technology

High-strength three-dimensional groove design with edge width and large chip flute to enhance the strength of the tool and reduce cutting resistance at large depth of cut, it is difficult to meet the chip removal and breakage of small diameter parts under small depth of cut and small feed Crumb requirements

However, the structure of the chip flute designed by the two-dimensional groove is simple, and it is difficult to meet the requirements of chip removal and chip breaking under the condition of variable depth of cut for small diameter parts

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