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Stepped round nose cutter

A round nose cutter and stepped technology, which is applied in the direction of milling cutters, manufacturing tools, metal processing equipment, etc., can solve the problems of affecting the cutting efficiency, reducing the service life, and sticking of the tool bar.

Inactive Publication Date: 2019-01-25
赫莱德(常州)精密工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As for the general-purpose round nose knife, first, the end surface is flat, and the tip of the knife has an R angle, which makes the tool easy to chip during processing, greatly reducing its life, and in actual use, there is often a part of the knife head There is no cutting edge, which will affect the cutting efficiency. Second, it cannot be applied to round holes of different processing sizes. Therefore, when it is necessary to process round holes of other sizes, a new round nose cutter needs to be replaced, which seriously affects the processing efficiency. Third, During processing, the tool bar is prone to jamming, which will cause the end edge and side edge of the blade to chip and be easily damaged.

Method used

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] see Figure 1~2 , a stepped round nose knife, including a handle 1, a first knife bar 2, a second knife bar 3, a third knife bar 4, a chip flute 5, a cutting edge 6, a knife head 7, a blade 8, a limiter Seat 9, connecting rod 10, positioning groove 11 and clamping rod 12; the front end of said knife handle 1 is provided with a first knife bar 2, and the tail end of said knife handle 1 is provided with a connecting bar 10, and said second knife bar 3 is...

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PUM

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Abstract

The invention discloses a stepped round nose cutter. The stepped round nose cutter comprises a cutter handle, a first cutter pole, a second cutter pole, a third cutter pole, a scrap discharging groove, cutting edges, a cutter bit, a cutter blade, a limiting base, a connecting rod, a positioning groove and a clamping rod. The stepped round nose cutter has the advantages that the diameters of pole bodies of the first cutter pole, the second cutter pole and the third cutter pole are reduced gradually to form a stepped cutter pole, and therefore the stepped round nose cutter can adapt to round holes with different machining sizes; the end edge of the cutter bit is in a circular arc shape, the end cutting edge of the cutter bit and the linear cutting edge are connected through a transitional circular arc, and therefore the round nose cutter is not blocked easily during machining. A long and short edge opening cross-over design is adopted for the cutter bit, the blade is in high-low intersecting connection, cutting resistance is reduced, the blade is detachably connected with the cutter bit through a fastening bolt, a new blade is conveniently used for replacement, the blade has a cutterpoint protective angle, the cutter point of the blade is coated with a micro-nano composite coating so that the blade has sufficient strength and anti-impact performance, and meanwhile good resistance to high-temperature oxidation and abrasion resistance are realized.

Description

technical field [0001] The invention relates to a round nose knife, in particular to a stepped round nose knife, which belongs to the technical field of cutting tools. Background technique [0002] In the field of mold processing, it is necessary to use tools such as round nose milling cutters to mill out end faces, slopes, grooves and stepped surfaces of different workpieces, which requires high precision for such tools. [0003] As for the general-purpose round nose knife, first, the end surface is flat, and the tip of the knife has an R angle, which makes the tool easy to chip during processing, greatly reducing its life, and in actual use, there is often a part of the knife head There is no cutting edge, which will affect the cutting efficiency. Second, it cannot be applied to round holes of different processing sizes. Therefore, when it is necessary to process round holes of other sizes, a new round nose cutter needs to be replaced, which seriously affects the processin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C5/20B23C5/12
CPCB23C5/12B23C5/22
Inventor 李志芬梅永杰
Owner 赫莱德(常州)精密工具有限公司
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