CN212217221U - Round nose cutter - Google Patents

Round nose cutter Download PDF

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Publication number
CN212217221U
CN212217221U CN201922489326.6U CN201922489326U CN212217221U CN 212217221 U CN212217221 U CN 212217221U CN 201922489326 U CN201922489326 U CN 201922489326U CN 212217221 U CN212217221 U CN 212217221U
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CN
China
Prior art keywords
cutter
peripheral edge
round nose
angle
degrees
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Active
Application number
CN201922489326.6U
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Chinese (zh)
Inventor
田江松
苏朝阳
黎熠
易亮
覃家达
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Dongguan Xinyan Precision Tool Co ltd
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Dongguan Xinyan Precision Tool Co ltd
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Priority to CN201922489326.6U priority Critical patent/CN212217221U/en
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Publication of CN212217221U publication Critical patent/CN212217221U/en
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Abstract

The utility model relates to a milling cutter design field, concretely relates to round nose cutter. The round nose cutter comprises a cutter handle part and a milling part connected with the cutter handle part, wherein the milling part comprises four spirally arranged side cutting edges, each side cutting edge comprises a peripheral edge, and the front angle of each peripheral edge is 3 degrees; the first relief angle of the peripheral edge is 8 degrees; the second relief angle of the peripheral edge is 15 degrees; the end of the peripheral edge far away from the knife handle is provided with an end tooth, and a spiral groove is arranged between two adjacent edge zones. This application optimizes the cutter parameter through improving the cutter structure from the angle of design, to cutter wearing and tearing position, optimizes the anterior angle relief angle of cutter.

Description

Round nose cutter
Technical Field
The utility model relates to a milling cutter design field, concretely relates to round nose cutter.
Background
A milling cutter is a rotating tool for milling machining having one or more cutter teeth. When working, each cutter tooth cuts off the margin of working price in turn and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, forming surfaces, cutting workpieces and the like on a milling machine.
The cutting edge of the existing round nose cutter is seriously abraded after being processed for a period of time, and the service life of the cutter is short.
Therefore, it is necessary to provide a technical means to solve the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a size reasonable in design, the chip removal is effectual, milling cutter that cutting efficiency is high.
A round nose cutter comprises a cutter handle part and a milling part connected with the cutter handle part, wherein the milling part comprises four spirally arranged side blade zones, each side blade zone comprises a peripheral edge, and the front angle of each peripheral edge is 3 degrees; the first relief angle of the peripheral edge is 8 degrees; the second relief angle of the peripheral edge is 15 degrees; and end teeth are arranged at one end of the peripheral edge, which is far away from the knife handle, and a spiral groove is arranged between every two adjacent edge zones.
More specifically, the side cutting edge comprises a front cutting surface, a rear cutting surface and a cutting edge back, wherein the cutting edge back is arranged between the front cutting surface and the rear cutting surface, and the surface of the cutting edge back is in arc transition.
More specifically, the helical angle of the spiral groove is 29-30 degrees.
More specifically, the end teeth are sequentially provided with front end blades from left to right; a tooth groove is formed between every two adjacent front end blades, and one end of the tooth groove is communicated with the spiral groove.
More specifically, the land back width is 0.9 mm.
More specifically, the portion of milling is gone up the cladding and is had titanium carbonitride coating.
The utility model relates to a round nose cutter through improving the cutter structure, optimizes the cutter parameter from the angle of design, to cutter wearing and tearing position, optimizes the anterior angle relief angle of cutter.
Drawings
Fig. 1 is an overall schematic view of a round nose cutter according to the present invention;
FIG. 2 is a cross-sectional view of C-C of FIG. 1;
FIG. 3 is an enlarged view of part A of FIG. 2;
fig. 4 is a general view of another angle of a round nose cutter according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
Referring to fig. 1 to 2, as shown in the drawings, a preferred embodiment of the present invention is realized by a round nose tool, which includes a shank portion 1 and a milling portion 2 connected to the shank portion 1, wherein the milling portion 2 includes four spirally arranged side margins 21, the side margins 21 include peripheral edges 22, and a front angle β of the peripheral edges 22 is 3 °; the first relief angle α of the peripheral edge 22 is 8 °; the secondary relief angle of the peripheral edge 22 is 15 °; the end of the peripheral edge 22 far away from the cutter handle part 1 is provided with an end tooth 3, and a spiral groove 4 is arranged between two adjacent cutting edges.
Further, the side land 21 includes a rake face 201, a flank face 202, and a land back 203, and the land back 203 is disposed between the rake face 201 and the flank face 202, and the surface thereof is in a circular arc transition.
Further, the helix angle of the spiral groove 4 is 29 ° to 30 °.
Further, the end teeth 3 are provided with front end blades; a tooth groove 32 is arranged between two adjacent front end blades, and one end of the tooth groove 32 is communicated with the spiral groove 4.
Further, the land back 203 is 0.9mm wide.
Further, mill portion 2 and go up the cladding and have the titanium carbonitride coating, the carbon element in the titanium carbonitride coating can improve the hardness of cutter to make the surface of milling portion obtain better surface lubricity, help reducing the production of heat, effectively prolong the life of cutter.
The utility model provides a round nose cutter optimizes the cutter parameter through improving the cutter structure from the angle of design, to cutter wearing and tearing position, optimizes anterior angle beta, relief angle alpha and the relief angle of all sword 22, reduces the friction area of land and milling face, has increased round nose cutter's life.
The above description is only for the preferred embodiment of the present invention, and the structure is not limited to the above-mentioned shape, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The round nose cutter is characterized by comprising a cutter handle part and a milling part connected with the cutter handle part, wherein the milling part comprises four spirally arranged side blade zones, each side blade zone comprises a peripheral edge, and the front angle of each peripheral edge is 3 degrees; the first relief angle of the peripheral edge is 8 degrees; the second relief angle of the peripheral edge is 15 degrees; and end teeth are arranged at one end of the peripheral edge, which is far away from the knife handle, and a spiral groove is arranged between every two adjacent edge zones.
2. The round nose tool as set forth in claim 1, wherein: the side cutting edge comprises a front cutting surface, a rear cutting surface and a cutting edge back, wherein the cutting edge back is arranged between the front cutting surface and the rear cutting surface, and the surface of the cutting edge back is in circular arc transition.
3. The round nose tool as set forth in claim 1, wherein: the spiral angle of the spiral groove is 29-30 degrees.
4. The round nose tool as set forth in claim 1, wherein: the end teeth are sequentially provided with front end blades from left to right; a tooth groove is formed between every two adjacent front end blades, and one end of the tooth groove is communicated with the spiral groove.
5. The round nose tool as set forth in claim 1, wherein: the width of the blade back is 0.9 mm.
6. The round nose tool as set forth in claim 1, wherein: the milling part is coated with a titanium carbonitride coating.
CN201922489326.6U 2019-12-31 2019-12-31 Round nose cutter Active CN212217221U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922489326.6U CN212217221U (en) 2019-12-31 2019-12-31 Round nose cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922489326.6U CN212217221U (en) 2019-12-31 2019-12-31 Round nose cutter

Publications (1)

Publication Number Publication Date
CN212217221U true CN212217221U (en) 2020-12-25

Family

ID=73901502

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922489326.6U Active CN212217221U (en) 2019-12-31 2019-12-31 Round nose cutter

Country Status (1)

Country Link
CN (1) CN212217221U (en)

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