Cutting tool having fly-off prevention structure

Abstract

The invention discloses a cutting tool having a fly-off prevention structure. The cutting tool having a tool body, a blade and a tool holder, the blade is installed on the tool holder, the tool body is provided with a tool slot, the tool holder is installed in the tool slot through a tool holder fastener, the front end of the tool slot is provided with a tool slot top surface along the cutting rotation direction of the cutting tool, one side of the blade facing the tool slot top surface is provided with a compaction inclined surface, a wedge is wedged between the tool slot top surface and the compaction inclined surface, and the wedge is connected with the tool slot through a wedge fastener. The cutting tool has the advantages of simple and compact structure, convenient processing and making, low production cost, convenient blade installing and dismounting, and good fly-off prevention effect.

Description

technical field [0001] The invention mainly relates to the field of cutting tools, in particular to a cutting tool with an anti-flying structure. Background technique [0002] In the cutting process of aluminum alloy rotary cutting tools, high spindle speed (10000<n<35000r / min) and high cutting speed (1500<Vc<6000m / min) are required to greatly improve processing efficiency and surface quality. In the process of high-speed cutting, due to the huge centrifugal force generated under high-speed rotation, the cutting blade is more likely to fly out and cause processing accidents, so a reasonable anti-flying structure is particularly important for cutting tools. [0003] In the aluminum alloy cutting industry, most cutting tool companies now use a serrated structure on the bottom surface of the groove to prevent the blade from flying out. For example, a cutting tool disclosed by Sandvik’s patent publication No. The positioning surface at the bottom of the blade is pro...

AI Technical Summary

Problems solved by technology

Although this structure can effectively prevent the blade from flying out during the cutting process, it is relatively complicated in shape, cumbersome to manufacture and difficult to process. Too many teeth require higher manufacturing precision to ensure the tooth profile of the cutting blade and the sipe teeth The shape and surface fit seamlessly, and the processing difficulty is relatively high

In the process of high-speed cutting, as the cutting speed increases, the centrifugal force on the cutting blade gradually increases. Since the strength of the aluminum alloy material itself is not high, it will make it easier to deform the serrated structure, thereby damaging the tool.

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