Trepanning tool

A cutting tool and nesting technology, which is applied in drilling accessories, manufacturing tools, drilling/drilling equipment, etc., can solve the problem of the obstruction of the nesting tool screwing into the shaft to be processed, the poor dimensional accuracy of the inner hole, and the consumption of chips. It can achieve the effect of small cutting force, high precision of inner hole size and high cutting efficiency

Inactive Publication Date: 2014-11-19
JIANGYIN LEGAO ENERGY EQUIP
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] There are two main structures of existing nesting tools: one is that the cutting edges of each blade of the nesting tool have the same width, and different shapes of cutting edges are used, such as the nesting drill bit disclosed in the application number 201310628202.6; its advantage is that the cutting edge Stable, but the disadvantage is that the cutting force is large and the feed rate is small
The other is that the width of each cutting edge increases sequentially, and the protruding dimension of the tooth surface of the cutter head differs by a certain distance to obtain a stepped cutting surface, such as the nesting knife disclosed in the application number 87203994, and the nesting knife disclosed in the application

Method used

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Embodiment Construction

[0045] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0046] Such as Figure 1 to Figure 4 As shown, the present invention is a nesting cutter, comprising a cylindrical cutter body 1, one end face of the cutter body 1 is provided with several cutting knives, the other end of the cutter body 1 is provided with threads 11 for connection; In the different rings of the end face of the body 1, it includes an inner cutting knife 3 located in the inner ring, an outer cutting knife 2 located in the outer ring, and a middle cutting knife 4 located in the central ring. The main cutting edge 31 of the inner cutting knife 3 is from The inner wall of the cutter body 1 extends from the end surface of the cutter body 1, and...

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Abstract

The invention discloses a trepanning tool. By the adoption of the structural design, the cutting force is lowered, the amount of feed is increased, cutting efficiency is improved, and cutting stability is improved. The mode is that an inner cutter, a middle cutter and an outer cutter are adopted to conduct cutting working on different circumferences of a shaft body to be machined; a main cutting edge of the inner cutter and a main cutting edge of the outer cutter are arranged in an inclined mode; a chip splitting cutter is arranged; an inner clipping cutter, a middle clipping cutter and an outer clipping cutter are optimized, and the structure parameters, position parameters and other parameters of the chip splitting cutter are optimized.

Description

technical field [0001] The invention relates to the technical field of cutting tools for metal materials, in particular to a nesting tool for deep hole nesting of metal materials. Background technique [0002] Existing drill bits can only process deep holes with a diameter below 120mm. For the processing of deep holes above 120mm, only a deep hole with a diameter of 120mm can only be drilled first, and then reamed with a boring tool, and the utilization value of the remaining material is low. In addition, this secondary processing method of drilling first and then boring is cumbersome and labor-intensive, and boring prolongs the processing time of deep holes and reduces processing efficiency. Taking the processing of a deep hole with a diameter of 180mm as an example, the boring time is about twice the drilling time, and the boring process increases the processing time of the entire deep hole by 200%. [0003] In order to overcome the above defects, people have developed d...

Claims

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Application Information

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IPC IPC(8): B23B51/04
CPCB23B51/0466B23B51/042B23B2251/40
Inventor 顾晓峰花湘宝葛海云李立新顾超
Owner JIANGYIN LEGAO ENERGY EQUIP
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