Cutting blade and cutting tool

Abstract

The invention discloses a cutting blade and a cutting tool. The cutting blade comprises a platelike blade main body, the blade main body is formed by encircling an upper surface, a lower surface, side surfaces and concaves, the quantity of the side surfaces and the quantity of the concaves are respectively three, the three side surfaces and the three concaves are respectively arranged at intervals, each side surface and each concave are respectively arranged between the upper surface and the lower surface, each concave consists of a circumferential positioning surface and cutter grooves which are respectively arranged on two opposite corners of the circumferential positioning surface, each cutter groove is intersected with the upper surface or the lower surface to form a main cutting edge, each cutter groove is intersected with each side surface to form a side cutting edge, and the main cutting edges are connected with the side cutting edges to form cutting edge groups. The cutting blade and the cutting tool have the advantages of simplicity and compactness in structure, strong universality, convenience in use and high cost performance. The cutting tool comprises a cutter body and a cutter blade tightening element, and the cutter body is fixedly provided with the cutting blade through the cutter blade tightening element.

Description

technical field [0001] The invention relates to cutting processing technology, in particular to a cutting insert and a cutting tool. Background technique [0002] Existing indexable cutting inserts such as figure 1 As shown, it has two groups of cutting edge groups, each group of cutting edge groups includes three cutting edges participating in cutting at the same time, figure 1 The cutting edge group is composed of main cutting edge 8, corner cutting edge 10 and peripheral cutting edge 9. This type of insert can be used twice by indexing, that is, this type of cutting insert has only two complete cutting edge groups, and its cost performance is relatively high. Low, in order to enhance the cost performance of cutting blades, people began to design cutting blades with multiple complete sets of three cutting edges, but currently the cutting blades with multiple complete cutting edge The clamping stability of the tool is poor. Contents of the invention [0003] The techni...

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Problems solved by technology

[0002] Existing indexable cutting inserts such as figure 1 As shown, it has two groups of cutting edge groups, each group of cutting edge groups includes three cutting edges participating in cutting at the same time, figure 1 The cutting edge group is composed of main cutting edge 8, corner cutting edge 10 and peripheral cutting edge 9. This type of insert can be used twice by indexing, that is, this type of cutting insert has only two complete cutting edge groups, and its cost performance is relatively high. Low, in order to enhance the cost performance of cutting blades, people began to design cutting blades with multiple complete sets of three cutting edges, but currently the cutting blades with multiple complete cutting edge Tool clamping stability is poor

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