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
CN104148709AInactive Publication Date: 2014-11-19JIANGYIN LEGAO ENERGY EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGYIN LEGAO ENERGY EQUIP
Publication Date
2014-11-19
Estimated Expiration
Not applicable · inactive patent

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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.
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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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