CBN milling cutter blade for strong arc cutting
By designing CBN end mills with specific parameters for strong circular arc cutting, the precision cutting problem of carbide inserts when machining carbide materials has been solved, achieving high-precision and durable cutting results, improving workpiece surface quality and tool life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WS PRECISION TOOLS SHANGHAI
- Filing Date
- 2023-12-12
- Publication Date
- 2026-04-10
AI Technical Summary
Existing carbide inserts are difficult to use for high-speed precision cutting when machining carbide materials, resulting in insufficient hole surface accuracy and durability.
CBN end mills employing strong circular arc cutting are designed with specific angles and structures, including parameters such as tip radius, cutting angle, longitudinal and transverse clearance angles, tip angle, and negative chamfer, utilizing the high wear resistance and sharpness of polycrystalline cubic boron nitride material.
It achieves high-precision and high-durability cutting results, ensuring workpiece surface quality and tool life, reducing friction and wear, and improving cutting stability and workpiece fatigue strength.
Smart Images
Figure CN224101901U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a milling cutter field, especially in a strong arc cutting CBN milling cutter piece. BACKGROUND
[0002] In the prior art, the black non-ferrous alloy metallurgical machinery and the aviation and automobile engine box hole surface, alloy gearbox hole surface and other alloy box hole surface all need strong arc cutting hole surface.
[0003] It is required to ensure good hole surface roundness and flat cutting hole surface to facilitate oil and lubricating oil and improve fatigue strength and mobility.
[0004] Although the workpiece alloy material is generally hard, its chemical composition and physical structure are complex and difficult to process, the tool is easy to wear and fail, and the processed workpiece is difficult to ensure hole surface precision, and the workload is large.
[0005] Therefore, the general hard alloy blade cannot meet the requirements of high-speed precision cutting.
[0006] Therefore, the present application is designed to overcome the above technical problems. CONTENT OF THE UTILITY MODEL
[0007] The utility model wants to solve the technical problem to overcome the defects that the hard alloy blade in the prior art cannot meet the requirements of high-speed precision cutting, and provides a strong arc cutting CBN milling cutter piece.
[0008] The utility model solves the above technical problems through the following technical schemes:
[0009] A strong arc cutting CBN milling cutter piece, characterized in that the radius of the tool tip arc of the strong arc cutting CBN milling cutter piece is 3.3mm, and the cutting offset angle is 1 degree.
[0010] The longitudinal relief angle of the strong arc cutting CBN milling cutter piece is 15 degrees.
[0011] According to one embodiment of the utility model, the transverse relief angle of the strong arc cutting CBN milling cutter piece is 7 degrees.
[0012] According to one embodiment of the utility model, the intermediate relief angle of the strong arc cutting CBN milling cutter piece is 7 degrees and 15 degrees transition.
[0013] According to one embodiment of the utility model, the tool tip angle of the strong arc cutting CBN milling cutter piece is 89 degrees.
[0014] According to one embodiment of the utility model, the negative chamfer angle of the strong arc cutting CBN milling cutter piece is 20 degrees.
[0015] According to one embodiment of the utility model, the width of the negative chamfer of the strong circular arc cutting CBN milling blade is 0.18mm.
[0016] The positive progress effect of the utility model lies in:
[0017] The strong circular arc cutting CBN milling blade has the following many:
[0018] I. Polycrystalline cubic boron nitride CBN material, lower friction ratio, high temperature resistance, high durability, high physical wear resistance, high chemical wear resistance, high crescent wear resistance, high mechanical wear resistance, high cold welding wear resistance and other comprehensive excellent performance.
[0019] II. The radius of the CBN blade is 3.3mm, which can make the photoresist force smaller under the conventional feeding condition, ensure that the cut surface is flat, precise, uniform and meticulous, and can make the blade cut under small stress, and the workpiece has better surface quality.
[0020] II. The radius of the CBN blade is 3.3mm, which can make the photoresist force smaller under the conventional feeding condition, ensure that the cut surface is flat, precise, uniform and meticulous, and can make the blade cut under small stress, and the workpiece has better surface quality.
[0021] At the same time, it can ensure that the machined workpiece alloy material large plane can be controlled to have high quality cutting plane, and has good tool durability.
[0022] III. The blade tip angle is 89 degrees and the offset angle is 1 degree, the negative chamfer is 20 degrees, and the width is 0.18mm. It can make the chip removal smooth and the blade edge strong.
[0023] IV. The cutting is smooth and smooth, the cutting is stable, the smooth pressure is smooth, the cutting force is stable and the parabola is smooth, which can make the cutting force controllable and small, and the blade edge is strong, and the cutting interference effect is avoided.
[0024] V. It can increase the strength of the blade edge, make the machined workpiece plane produce bright cutting lines, and make the cutting force controllable and small, and the blade edge is strong, and the cutting interference effect is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0025] The above and other features, properties and advantages of the utility model will become more obvious through the following description combined with the drawings and examples, wherein the same reference signs always represent the same features, and wherein:
[0026] Figure 1 It is the front view of the strong circular arc cutting CBN milling blade of the utility model.
[0027] Figure 2 is a side view of the CBN milling insert for strong circular arc cutting of the utility model.
[0028]
Reference numerals
[0029] Radius R of the nose circle
[0030] Cutting offset angle a
[0031] Longitudinal relief angle b
[0032] Transverse relief angle c
[0033] Intermediate relief angle d
[0034] Negative chamfer angle e
[0035] Negative chamfer width f DETAILED DESCRIPTION
[0036] In order to make the above objectives, characteristics and advantages of the utility model more apparent, obvious and easy to understand, the following will make a detailed description of the specific embodiments of the utility model with reference to the drawings.
[0037] The embodiments of the utility model will now be described in detail with reference to the drawings. The preferred embodiments of the utility model will now be described in detail with reference to the drawings, examples of which are shown in the drawings. In any possible case, the same signs will be used to represent the same or similar parts in all the drawings.
[0038] In addition, although the terms used in the utility model are selected from the commonly known and used terms, some terms mentioned in the utility model specification may be selected by the applicant according to his or her judgment, and the detailed meanings thereof are described in the relevant parts of the description herein.
[0039] In addition, the utility model is required to be understood not only by the actual terms used, but also by the meanings implied by each term.
[0040] Figure 1 is a front view of the CBN milling insert for strong circular arc cutting of the utility model.
[0041] Figure 2 is a side view of the CBN milling insert for strong circular arc cutting of the utility model.
[0042] As Figure 1 and Figure 2 shown, the utility model discloses a kind of strong circular arc cutting CBN milling insert, wherein the radius R of the nose circle of the strong circular arc cutting CBN milling insert is 3.3mm, and cutting offset angle a is 1 degree.The longitudinal relief angle b of the strong circular arc cutting CBN milling insert is 15 degrees.
[0043] Preferably, the strong circular arc cutting CBN milling blade has a transverse relief angle c of 7 degrees.
[0044] Preferably, the strong circular arc cutting CBN milling blade has a middle relief angle of 7 degrees and a 7-15 degree transition.
[0045] Further preferably, the strong circular arc cutting CBN milling blade has a tool tip angle of 89 degrees.
[0046] Additionally preferably, the strong circular arc cutting CBN milling blade has a negative chamfer angle d of 20 degrees.
[0047] More preferably, the strong circular arc cutting CBN milling blade has a negative chamfer width e of 0.18 mm.
[0048] According to the above structural description, the strong circular arc cutting CBN milling blade can strongly mill complex alloy material high-precision hole workpieces and meet the requirements of precision and long service life.
[0049] In summary, the strong circular arc cutting CBN milling blade has the following advantages:
[0050] I. Polycrystalline cubic boron nitride CBN material has many excellent properties such as low friction ratio, high temperature resistance, high durability, high physical wear resistance, high chemical wear resistance, high crescent wear resistance, high mechanical wear resistance, and high cold welding wear resistance.
[0051] II. The radius of the CBN blade is 3.3 mm, which can make the light resistance smaller under normal feeding conditions, ensure that the machined surface is smooth, precise, uniform, and detailed, and can make the blade have small stress cutting feeding, and the workpiece has better surface quality.
[0052] II. The radius of the CBN blade is 3.3 mm, which can make the light resistance smaller under normal feeding conditions, ensure that the machined surface is smooth, precise, uniform, and detailed, and can make the blade have small stress cutting feeding, and the workpiece has better surface quality.
[0053] At the same time, it can ensure that the machined workpiece alloy material large plane has controllable high-quality cutting plane, and has good tool durability.
[0054] III. The tool tip angle is 89 degrees and the offset angle is 1 degree, the negative chamfer is 20 degrees, and the width is 0.18 mm. It can make the chip removal smooth and the blade strong.
[0055] IV. The cutting is smooth and smooth, the cutting is stable, the smoothness is smooth, the cutting force is stable, and the parabolic flow is reduced, which can make the cutting soft and the cutting force controllable, and the blade has good cutting interference effect.
[0056] Five, can increase the blade strength, and make the machined parts plane produce bright and smooth cutting lines flow more smooth, have pressure stress fatigue resistance, and benefit the oil and oil.
[0057] The above disclosure of the invention is merely exemplary and does not limit the application. Although not explicitly described, those skilled in the art can make various modifications, improvements and corrections to the application. Such modifications, improvements and corrections are suggested in the application, so they still belong to the spirit and scope of the exemplary embodiments of the application.
[0058] At the same time, the application uses specific words to describe the embodiments of the application. As "one embodiment", "an embodiment", and / or "some embodiments" means a certain feature, structure or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that the "an embodiment" or "one embodiment" or "an alternative embodiment" mentioned in different places in the specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the application can be properly combined.
[0059] Similarly, it should be noted that, in order to simplify the description of the disclosure and to help understand one or more embodiments of the application, sometimes multiple features are combined into one embodiment, figure or description of it. However, this disclosure method does not mean that the features required by the application are more than the features mentioned in the claims. In fact, the features of the embodiment are less than all the features of the disclosed single embodiment.
[0060] Although the above describes the specific embodiments of the present application, those skilled in the art should understand that these are only illustrative, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application. However, these changes and modifications all fall within the protection scope of the present application.
Claims
1. A strong arc of a circle cutting CBN milling insert, characterized in that, The radius of the nose circle of the strong arc cutting CBN milling insert is 3.3mm, and the cutting offset angle is 1 degree; The longitudinal clearance angle of the strong arc cutting CBN milling insert is 15 degrees.
2. The strong-arc-of-cuts CBN milling insert of claim 1, wherein, The transverse clearance angle of the strong arc cutting CBN milling insert is 7 degrees.
3. The strong-arc-of-cuts CBN milling insert of claim 1, wherein, The intermediate clearance angle of the strong arc cutting CBN milling insert is 7 degrees and 15 degrees transition.
4. The strong-arc-of-cuts CBN milling insert of claim 1, wherein, The nose angle of the strong arc cutting CBN milling insert is 89 degrees.
5. The strong-arc-of-cuts CBN milling insert of claim 1 wherein, The angle of the negative chamfer of the strong arc cutting CBN milling insert is 20 degrees.
6. The strong-arc-of-cuts CBN milling insert of claim 1 wherein, The width of the negative chamfer of the strong arc cutting CBN milling insert is 0.18mm.