CN214417750U

CN214417750U - Large-feed high-speed precise CBN face milling blade

Info

Publication number: CN214417750U
Application number: CN202120449559.8U
Authority: CN
Inventors: 葛强; 郑章庆
Original assignee: Ws Precision Tools Shanghai Co ltd
Current assignee: Ws Precision Tools Shanghai Co ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-10-19
Anticipated expiration: 2031-03-02

Abstract

The utility model provides a high-feed high-speed accurate CBN face milling cutter piece, wherein, the radius of the downside long edge circular arc of CBN face milling cutter piece is 800mm, the relief angle of CBN face milling cutter piece is 0 degree, the relief angle after CBN face milling cutter piece installation is 5 degrees; the front angle of the CBN face milling blade is 15 degrees, the front angle of the CBN face milling blade after installation is 10 degrees, the negative chamfer of the CBN face milling blade is 20 degrees, and the width of the negative chamfer is 0.09 mm. The utility model discloses CBN face milling cutter piece adopts polycrystalline cubic boron nitride CBN material, lower frictional force proportion, and high temperature resistant, high red hard, high incorruptibility, high anti physical wear, high anti chemical wear, high anti crescent wearing and tearing, high anti mechanical wear, high anti cold welding wearing and tearing etc. are combined many excellent properties. The method has good light trimming and vibration reduction effects and cutting avoiding interference effects, and improves the cutting feed speed and efficiency, the processing stability and the processing precision.

Description

Large-feed high-speed precise CBN face milling blade

Technical Field

The utility model relates to a milling cutter field, in particular to high-speed accurate CBN face milling cutter piece of big feed.

Background

In the prior art, the arc surface forming curved surface and plane of alloy cast iron, nodular cast iron and gray cast iron of automobile engines, diesel engines and metal cutting machine tools of engineering machinery, and material workpieces of powder metallurgy and the like need high-efficiency high-speed large-feed precision cutting.

The precision of high-quality arc surfaces, curved surfaces and planes and the surface quality of precise, clear and smooth surfaces are ensured, so that the precision assembly is facilitated, and the fatigue strength and the reliability are improved.

Because the structural components of the alloy material of the workpiece are complex, although the overall hardness is not high, when the alloy material is cut, the physical and chemical abrasion of the cutter is great, the cutter is difficult to process, the cutter is easy to abrade and lose efficacy when in use, the processed workpiece is difficult to ensure large area and high precision, and the workload is large.

Therefore, the general cemented carbide blade cannot meet the requirements of high-feed high-speed precision cutting.

In view of the above, a CBN face milling insert has been developed by those skilled in the art to overcome the above technical problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a high-speed accurate CBN face milling cutter piece of heavy feed in order to overcome among the prior art carbide blade can not be competent in the defect that the high-speed accurate cutting of heavy feed required.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

a CBN face milling blade is characterized in that the radius of a long edge arc at the lower side of the CBN face milling blade is 800mm, the rear angle of the CBN face milling blade is 0 degree, and the rear angle of the CBN face milling blade after installation is 5 degrees;

the front angle of the CBN face milling blade is 15 degrees, the front angle of the CBN face milling blade after installation is 10 degrees, the negative chamfer of the CBN face milling blade is 20 degrees, and the width of the negative chamfer is 0.09 mm.

According to an embodiment of the present invention, the first beveled edge of the right angle nose of the CBN face milling insert is 5 degrees.

According to an embodiment of the invention, the width of the first beveled edge is 0.49 mm.

According to an embodiment of the invention, the second beveled edge of the right-angled nose of the CBN face milling insert is 20 degrees.

According to an embodiment of the invention, the width of the second beveled edge is 0.49 mm.

According to an embodiment of the invention, the third beveled edge of the right-angled nose of the CBN face milling insert is 63 degrees.

According to an embodiment of the invention, the third beveled edge has a width of 0.68 mm.

The utility model discloses an actively advance the effect and lie in:

the utility model discloses the high-speed accurate CBN face milling cutter piece of big feed has following a great deal of advantage:

the polycrystalline cubic boron nitride CBN material has the comprehensive excellent performances of low friction ratio, high temperature resistance, high red hardness, high durability, high physical abrasion resistance, high chemical abrasion resistance, high crescent abrasion resistance, high mechanical abrasion resistance, high cold welding abrasion resistance and the like.

The radius of a large circular arc of a long edge on the lower side of the CBN cutter is 800, the rear angle of the big circular arc is 0 degree (after installation, the rear angle is 5 degrees), the front angle of the big circular arc is 15 degrees (after installation, the front angle is 10 degrees), the negative chamfer is 20 degrees, the width of the big circular arc is 0.09 millimeter, the intensity of the big circular arc of the long edge can be greatly increased, the cutting force is uniform, and the cutting is smooth and stable. Meanwhile, the polishing and vibration reduction function and the cutting avoiding interference function are good, and the cutting feed speed, the cutting feed efficiency, the machining stability and the machining precision are improved. The cutting tool can ensure that a cut surface is precise, uniform, compact and flat, smooth in chip removal, generates regular superfine cutting textures, is smoother, has compressive stress, is fatigue-resistant, and is beneficial to oil storage and oil sealing.

And thirdly, the first oblique blade of the right-angle tool nose is 5 degrees, the width is 0.49mm, the back angle is 10 degrees (about 4.5 degrees is increased after installation), the CBN tool has good impact resistance and good cutting sharpness, and meanwhile, the CBN tool can be stably fed and cut, the high-precision machined surface of the black alloy material workpiece can be precisely machined at high speed, the machining quality is ensured, and the service life of the tool is very good.

And the second inclined blade of the right-angle tool nose is 20 degrees, the width is 0.49mm, the back angle is 10 degrees (about 3.5 degrees is increased after installation), the impact strength is better, the effect of the blade on removing internal friction temperature rise and softening a material of a machined part at a cutting point is increased, the mechanical abrasion of the blade of the tool is reduced, and the quality of the machined part is improved.

And the third inclined edge of the fifth and the right-angle tool tips is 63 degrees, the width is 0.68mm, the back angle is 10 degrees (increased by about 2 degrees after installation), the head-on cutting impact can be resisted, the cutting is light and fast, and the impact friction of powerful and fast chip removal can be resisted.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which like reference numerals refer to like features throughout, and in which:

fig. 1 is a front view of the CBN face milling insert of the present invention.

Fig. 2 is a top view of the CBN face milling insert of the present invention.

Fig. 3 is a left side view of the CBN face milling insert of the present invention.

[ reference numerals ]

CBN face milling insert 10

Radius R of arc of long edge at lower side

Relief angle a1 of first ramping edge

Relief angle a2 of second ramping edge

Relief angle a3 of third ramping edge

Front angle b of CBN face milling blade

Angle c of negative chamfer

Width d1 of negative chamfer

Angle e of the first bevel edge

Width d2 of first oblique edge

Angle f of the second ramping edge

Width d3 of second oblique edge

Angle g of the third ramping edge

Width d4 of third beveled edge

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.

Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.

Fig. 1 is a front view of the CBN face milling insert of the present invention. Fig. 2 is a top view of the CBN face milling insert of the present invention. Fig. 3 is a left side view of the CBN face milling insert of the present invention.

As shown in fig. 1 to 3, the utility model discloses a CBN face milling cutter piece 10, wherein, the radius R of the lower side long edge circular arc of CBN face milling cutter piece 10 is 800mm, and the relief angle of CBN face milling cutter piece 10 is 0 degree, and the relief angle after CBN face milling cutter piece 10 installs is 5 degrees. The rake angle b of the CBN face milling insert 10 is 15 degrees, the rake angle b of the CBN face milling insert 10 after installation is 10 degrees, the angle c of the negative chamfer of the CBN face milling insert 10 is 20 degrees, and the width d1 of the negative chamfer is 0.09 mm.

Preferably, the angle e of the first ramping edge of the right-angled nose of the CBN face milling insert 10 is 5 degrees. The width d2 of the first inclined blade is 0.49mm, the clearance angle a1 of the first inclined blade is 10 degrees, and the clearance angle a1 increases by about 4.5 degrees after installation.

Preferably, the angle f of the second ramping edge of the right-angled nose of the CBN face milling insert 10 is 20 degrees. The width d3 of the second inclined blade is 0.49mm, the relief angle a2 of the second inclined blade is 10 degrees, and the increase is about 3.5 degrees after installation.

Preferably, the angle g of the third ramping edge of the right-angled nose of the CBN face milling insert 10 is 63 degrees. The width d4 of the third inclined blade is 0.68mm, the relief angle a3 of the third inclined blade is 10 degrees, and the increase is about 2 degrees after installation.

According to the above description, the utility model discloses CBN face milling cutter piece is the CBN face milling cutter piece of the high-speed precision cutting of big feed, and it can be high-speed precision ground cutting processing alloy cast iron, nodular cast iron, grey cast iron powder metallurgy etc. material work piece arc surface, curved surface and plane, reaches the requirement of precision and long durability.

To sum up, the utility model discloses the high-speed accurate CBN face milling cutter piece of big feed has following a great deal of advantage: the polycrystalline cubic boron nitride CBN material has the comprehensive excellent performances of low friction ratio, high temperature resistance, high red hardness, high durability, high physical abrasion resistance, high chemical abrasion resistance, high crescent abrasion resistance, high mechanical abrasion resistance, high cold welding abrasion resistance and the like.

Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.

Claims

1. The CBN face milling blade is characterized in that the radius of a long edge arc at the lower side of the CBN face milling blade is 800mm, the rear angle of the CBN face milling blade is 0 degree, and the rear angle of the CBN face milling blade after installation is 5 degrees;

2. The CBN face milling insert as claimed in claim 1, wherein the first ramping edge of the right angle nose of the CBN face milling insert is 5 degrees.

3. The CBN face milling insert as claimed in claim 2, wherein the first ramping edge has a width of 0.49 mm.

4. The CBN face milling insert as claimed in claim 1, wherein the second ramping edge of the right angle nose of the CBN face milling insert is 20 degrees.

5. The CBN face milling insert as claimed in claim 4, wherein the width of the second ramping edge is 0.49 mm.

6. The CBN face milling insert as claimed in claim 1, wherein the third ramping edge of the right angle nose of the CBN face milling insert is 63 degrees.

7. The CBN face milling insert as claimed in claim 6, wherein the width of the third ramping edge is 0.68 mm.