CN219484324U - Low-rotation-speed high-feed comprehensive high-efficiency milling cutter - Google Patents

Low-rotation-speed high-feed comprehensive high-efficiency milling cutter Download PDF

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Publication number
CN219484324U
CN219484324U CN202120563198.XU CN202120563198U CN219484324U CN 219484324 U CN219484324 U CN 219484324U CN 202120563198 U CN202120563198 U CN 202120563198U CN 219484324 U CN219484324 U CN 219484324U
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spiral
cutting
low
milling cutter
angle
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孔君
邱道权
汤桂海
陈波
周荣辉
胡炫坤
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract

The utility model discloses a low-rotation-speed high-feed comprehensive high-efficiency milling cutter, which comprises a cutter handle and a cutting part connected to one end of the cutter handle, wherein four spiral chip grooves and four spiral cutting edges positioned between two adjacent spiral chip grooves are arranged on the outer wall of the cutting part, four end teeth and chip grooves positioned between two adjacent end teeth are arranged on the end face of the cutting part, the spiral cutting edges are arranged at equal spiral angles, the spiral angles beta 1 and beta 2 are 39 DEG + -0.1, the spiral angles are increased, the length of the cutting edge involved in cutting is increased, the end teeth are arranged in unequal mode, the pair of end teeth on the same diagonal line are over-center, and the unequal angle a3 of the end teeth is 5 DEG + -0.01, so that chip containing and chip removing effects are improved, and the product cutter has the advantages of large cutting depth and quick feed. The utility model has the advantages of simple structure, high rigidity, large cutting depth, low rotation speed and quick feeding, high efficiency, stability and wear resistance by adopting the equal spiral unequal design.

Description

Low-rotation-speed high-feed comprehensive high-efficiency milling cutter
Technical Field
The utility model relates to the technical field of milling cutters, in particular to a low-rotation-speed high-feed comprehensive high-efficiency milling cutter.
Background
With the increasing maturity of CNC processing technology, the machining efficiency is paid more and more attention to, and it directly decides the height of processing cost, the length of delivery cycle, and to this current situation, the machining efficiency of cutter such as current milling cutter is highly desirable to improve. However, the existing milling cutter has the following disadvantages: 1. the helix angle is smaller, so that the length of the cutting edge participating in cutting is reduced; 2. the end teeth are arranged at equal angles, so that the chip containing and removing effects are still to be enhanced, and the end teeth do not have the performances of large cutting depth and quick feeding.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a low-rotation-speed high-feed comprehensive high-efficiency milling cutter.
In order to achieve the above object, the present utility model provides a low-rotation-speed high-feed comprehensive high-efficiency milling cutter, which comprises a cutter handle and a cutting part connected to one end of the cutter handle, wherein the outer wall of the cutting part is provided with four spiral chip grooves and four spiral cutting edges positioned between two adjacent spiral chip grooves, and the end surface of the cutting part is provided with four end teeth and chip grooves positioned between two adjacent end teeth, and the present utility model is characterized in that: the spiral cutting edges are arranged at equal spiral angles, the first spiral angle beta 1 of one spiral cutting edge is 39 degrees plus or minus 0.1, the second spiral angle beta 2 of the other spiral cutting edge is 39 degrees plus or minus 0.1, the end teeth are arranged in a non-equally dividing way, the end teeth are over-center in a pair of end teeth on the same diagonal line, and the non-equally dividing angle a3 is 5 degrees plus or minus 0.01.
Preferably, in the above-mentioned technical aspect, the rake angle a1 of the rake of the cutting portion formed by the spiral chip groove is 9 ° ± 0.1, and the core thickness D3 of the cutting portion is
Preferably, in the above-mentioned technical solution, the first relief angle α of the helical cutting edge is 6 ° ± 0.1 and is a circular arc relief angle, and the first relief width F1 of the helical cutting edge is 1mm±0.1.
Preferably, in the above technical solution, the second relief angle G of the helical cutting edge is 26 ° ± 0.1, the second relief width F2 of the helical cutting edge is 0.5mm±0.05, and the back depth S of the second relief of the helical cutting edge is 0.3mm±0.05.
Preferably, in the above technical solution, the first relief angle H1 of the end tooth is 6 ° ± 0.01, the first relief width C of the end tooth is 0.98mm±0.01, and the second relief angle H2 of the end tooth is 16 ° ± 0.01.
Preferably, in the above technical solution, the angle GA of the chip flute is 35 ° ± 0.1, and the cutting depth of the chip flute isThe eccentricity value b of the chip flute is 0.06mm +/-0.01.
Preferably, in the above-mentioned aspect, the cutter inclination angle a2 of the cutting portion is 2 ° ± 0.01.
Preferably, in the above-described aspect, the edge protection angle Q of the cutting portion is 2 ° ± 0.01.
Preferably, in the above technical solution, the edge length L1 of the spiral cutting edge is 30mm±0.1, and the groove length of the spiral chip groove is 30mm±0.3.
Preferably, in the above-mentioned aspect, the cutting portion has a blade diameter D of The diameter D2 of the cutter handle is phi 10mm plus or minus 0.003, and the total length L of the cutter handle and the cutting part is 75mm plus or minus 0.5.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model has simple structure and reasonable design, adopts equal spiral unequal design, increases the spiral angle, increases the spiral cutting edge, increases the cutting edge length participating in cutting, adopts unequal design of end teeth, greatly improves chip containing and chip removing effects, and ensures that the milling cutter has the advantages of large cutting depth and quick feeding.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a low-rotation-speed high-feed integrated high-efficiency milling cutter according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a low-speed high-feed integrated high-performance milling cutter according to an embodiment of the present utility model;
FIG. 3 is an enlarged view of a first relief angle and a second relief angle portion of a helical cutting edge provided by an embodiment of the present utility model;
FIG. 4 is a graph of the flute angle and helix angle provided by an embodiment of the present utility model;
FIG. 5 is an angular label of the cutter inclination angle and the cutter tip protection angle provided by the embodiment of the utility model;
FIG. 6 is an angular annotation of a first relief angle of an end tooth provided by an embodiment of the present utility model;
FIG. 7 is an angular annotation of a second relief angle of an end tooth provided by an embodiment of the present utility model;
FIG. 8 is a schematic view of an end tooth according to an embodiment of the present utility model;
fig. 9 is a schematic diagram of a second structure of an end tooth according to an embodiment of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, an embodiment of the present utility model provides a low-rotation-speed high-feed comprehensive high-efficiency milling cutter, which includes a shank 1 and a cutting portion 2 connected to one end of the shank 1, wherein four spiral chip grooves 3 and four spiral cutting edges 4 (also called peripheral edges or side edges) located between two adjacent spiral chip grooves 3 are provided on an outer wall of the cutting portion 2, four end teeth 5 and chip flutes 6 located between two adjacent end teeth 5 are provided on an end surface of the cutting portion 2, and each component of the embodiment is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 6, the helical cutting edges 4 are arranged with equal helical angles, and in two adjacent helical cutting edges 4, the first helix angle β1 of one helical cutting edge 4 is 39 ° ± 0.1, and the second helix angle β2 of the other helical cutting edge 4 is also 39 ° ± 0.1.
As shown in fig. 3, the end teeth 5 are provided in a split arrangement, and a pair of end teeth 5 on the same diagonal are over-centered, and the split angle a3 thereof is 5 ° ± 0.01.
As shown in fig. 1, the helical flute 3 forms a rake angle a1 of 9 ° ± 0.1, and the core thickness D3 of the cutting portion 2 is
As shown in fig. 4 and 5, the first relief angle α of the helical cutting edge 4 is 6 ° ± 0.1 and is a circular arc relief angle, and the first relief width F1 of the helical cutting edge 4 is 1mm±0.1. The second relief angle G of the helical cutting edge 4 is 26 ° ± 0.1, the second relief width F2 of the helical cutting edge 4 is 0.5mm±0.05, and the back depth S of the second relief of the helical cutting edge 4 is 0.3mm±0.05.
As shown in fig. 8 and 9, the first relief angle H1 of the end tooth 5 is 6 ° ± 0.01, the first relief width C of the end tooth 5 is 0.98mm±0.01, and the second relief angle H2 of the end tooth 5 is 16 ° ± 0.01.
As shown in fig. 2 and 6, the angle GA of the chip pocket 6 is 35 ° ± 0.1, and the cutting depth of the chip pocket 6 isThe eccentricity b of the chip flute 6 is 0.12mm + -0.01.
As shown in fig. 7, the cutter inclination angle a2 of the cutting portion 2 is 2 ° ± 0.01. The edge protection angle Q of the cutting portion 2 is 2 ° ± 0.01.
As shown in fig. 1, the edge length L1 of the helical cutting edge 4 is 30mm±0.1, and the groove length of the helical flute 3 is 30mm±0.3.
As shown in fig. 1, the cutting portion 2 has a cutting edge diameter D ofThe shank diameter D2 of the shank 1 isThe total length L of the shank 1 and the cutting portion 2 is 75 mm.+ -. 0.5.
The milling cutter of the present embodiment has the following advantages:
1. by adopting the equal-spiral unequal design, the spiral angles beta 1 and beta 2 are 39 degrees plus or minus 0.1 degrees, compared with a standard milling cutter, the spiral angle is increased, the spiral cutting edge is increased, and the length of the cutting edge participating in cutting is increased.
2. The end teeth are designed to have an unequal angle a3 of 5 degrees plus or minus 0.01, so that the chip containing and removing effects are improved to a great extent, and the product cutter has the excellent performance of large cutting depth and quick feeding.
3. Spiral groove is processed by using forming U-shaped grinding wheel, and large U-shaped grinding wheel is formedThe spiral groove ensures good chip removal performance, the rake angle a1 of the cutter groove forming 9 degrees is 9 degrees plus or minus 0.1 degrees, and the sharp cutting performance forming a large rake angle is ensured, and meanwhile, the thickness D3 of the cutter core is more reasonableThus the cutter is sharp and has relatively strong rigidity.
4. The cutting tool has the characteristics of high rigidity, large cutting depth and low rotating speed and fast feeding, can achieve extremely high cutting efficiency due to the fact that the lower rotating speed is used, is low in rotating speed, and increases the spiral cutting edges of the cutting tool, so that the cutting tool has the advantages of being efficient, stable and resistant to abrasion, and is particularly suitable for processing and application of full-cutter cutting and dynamic large cutting depth and fast feeding of 45 # steel and P20 die steel materials.
The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a high-efficient milling cutter of synthesizing formula that feeds of low rotational speed height, includes handle of a knife and connects the cutting portion in handle of a knife one end, be equipped with four spiral chip grooves and four spiral cutting edges that are located between two adjacent spiral chip grooves on the outer wall of cutting portion, the terminal surface of cutting portion is equipped with four end teeth and is located the chip groove between two adjacent end teeth, its characterized in that: the spiral cutting edges are arranged at equal spiral angles, the first spiral angle beta 1 of one spiral cutting edge is 39 degrees plus or minus 0.1, the second spiral angle beta 2 of the other spiral cutting edge is 39 degrees plus or minus 0.1, the end teeth are arranged in a non-equally dividing way, the end teeth are over-center in a pair of end teeth on the same diagonal line, and the non-equally dividing angle a3 is 5 degrees plus or minus 0.01.
2. The low-speed high-feed integrated high-performance milling cutter according to claim 1, wherein: the rake angle a1 of the cutter groove formed by the spiral chip groove is 9 degrees+/-0.1, and the core thickness D3 of the cutting part is phi 6.5 mm+/-0.1.
3. The low-speed high-feed integrated high-performance milling cutter according to claim 1, wherein: the first relief angle alpha of the spiral cutting edge is 6 degrees+/-0.1 and is an arc relief angle, and the first relief angle width F1 of the spiral cutting edge is 1 mm+/-0.1.
4. The low-speed high-feed integrated high-performance milling cutter according to claim 1, wherein: the second relief angle G of the spiral cutting edge is 26 degrees+/-0.1, the second relief angle width F2 of the spiral cutting edge is 0.5 mm+/-0.05, and the back carving depth S of the second relief angle of the spiral cutting edge is 0.3 mm+/-0.05.
5. The low-speed high-feed integrated high-performance milling cutter according to claim 1, wherein: the first relief angle H1 of the end teeth is 6 degrees+/-0.01, the first relief angle width C of the end teeth is 0.98 mm+/-0.01, and the second relief angle H2 of the end teeth is 16 degrees+/-0.01.
6. The low-speed high-feed integrated high-performance milling cutter according to claim 1, wherein: the angle GA of the chip pocket is 35 degrees+/-0.1, and the cutting depth of the chip pocket isThe eccentricity value b of the chip flute is 0.06mm +/-0.01.
7. The low-speed high-feed integrated high-performance milling cutter according to claim 1, wherein: the cutter inclination angle a2 of the cutting part is 2 degrees plus or minus 0.01.
8. The low-speed high-feed integrated high-performance milling cutter according to claim 1, wherein: the tip protection angle Q of the cutting part is 2 degrees + -0.01.
9. The low-speed high-feed integrated high-performance milling cutter according to claim 1, wherein: the length L1 of the spiral cutting edge is 30mm +/-0.1, and the length of the spiral chip groove is 30mm +/-0.3.
10. The low-speed high-feed integrated high-performance milling cutter according to claim 1, wherein: the blade diameter D of the cutting part isThe shank diameter D2 of the shank is +.>The total length L of the cutter handle and the cutting part is 75mm plus or minus 0.5.
CN202120563198.XU 2021-03-19 2021-03-19 Low-rotation-speed high-feed comprehensive high-efficiency milling cutter Active CN219484324U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120563198.XU CN219484324U (en) 2021-03-19 2021-03-19 Low-rotation-speed high-feed comprehensive high-efficiency milling cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120563198.XU CN219484324U (en) 2021-03-19 2021-03-19 Low-rotation-speed high-feed comprehensive high-efficiency milling cutter

Publications (1)

Publication Number Publication Date
CN219484324U true CN219484324U (en) 2023-08-08

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CN202120563198.XU Active CN219484324U (en) 2021-03-19 2021-03-19 Low-rotation-speed high-feed comprehensive high-efficiency milling cutter

Country Status (1)

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CN (1) CN219484324U (en)

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