CN216227154U

CN216227154U - Face milling blade

Info

Publication number: CN216227154U
Application number: CN202122934102.9U
Authority: CN
Inventors: 白淼
Original assignee: Wuxi Ruizhi Fangda Metal Technology Development Co ltd
Current assignee: Wuxi Ruizhi Fangda Metal Technology Development Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-04-08
Anticipated expiration: 2031-11-26

Abstract

The utility model belongs to the technical field of metal cutting machining blades, and particularly relates to a face milling blade which comprises an upper surface, a lower surface, a plurality of side surfaces and an arc transition surface, wherein the side surfaces are connected with the upper surface and the lower surface; the intersection part of the upper surface and the side surface forms an upper main cutting edge, and the intersection part of the lower surface and the side surface forms a lower main cutting edge; the intersection part of the upper surface and the arc transition surface forms an upper secondary cutting edge, and the intersection part of the lower surface and the arc transition surface forms a lower secondary cutting edge. The face milling blade adopts the front and back double-sided cutting edges, so that the cost performance is higher. The surface precision of the workpiece can be still ensured under the rough working condition. The cutting edge is taken into account, and the impact resistance is strong; high smoothness and low resistance cutting are realized.

Description

Face milling blade

Technical Field

The utility model belongs to the technical field of metal cutting processing blades, and particularly relates to a face milling blade.

Background

At present, for the field of machining, how to realize high-efficiency, high-quality and low-cost production is an important way for modern enterprises to improve economic benefits. The plane milling is the most basic processing content in the machining, and is widely applied in the actual production, for example, the joint surfaces of parts such as a large impeller case, a compressor case, an automobile panel mould, an engine case and the like need to be subjected to plane processing. The machining allowance of the large parts is large, chips are not easy to discharge in the cutting process, the cutting load is large, a large amount of cutting heat is generated, and the cutting heat is difficult to dissipate, so that the cutting temperature is high, the cutter is seriously abraded, the service life of the cutter is shortened, the cutter is frequently replaced, time and labor are consumed, and the production cost is greatly increased.

Disclosure of Invention

According to the defects in the prior art, the utility model aims to provide the milling cutter blade with the large cutting depth, which adopts double-sided cutting edges, effectively prolongs the service life of the cutter and saves the production cost.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: a face milling insert comprises an upper surface, a lower surface, a plurality of side surfaces connecting the upper surface and the lower surface, and arc transition surfaces connecting adjacent side surfaces; the intersection part of the upper surface and the side surface forms an upper main cutting edge, and the intersection part of the lower surface and the side surface forms a lower main cutting edge; the intersection part of the upper surface and the arc transition surface forms an upper secondary cutting edge, and the intersection part of the lower surface and the arc transition surface forms a lower secondary cutting edge.

Further, the center of the blade body is provided with a mounting hole, and the mounting hole is a stepped hole which is symmetrical along a central line.

Furthermore, the upper main cutting edge and the upper auxiliary cutting edge form an upper cutting edge, and the upper cutting edge is provided with an upper chamfered surface; the lower main cutting edge and the lower auxiliary cutting edge form a lower cutting edge, and the lower cutting edge is provided with a lower chamfered surface.

Further, the upper chamfer surface extends towards the blade center at a predetermined angle to form an upper rake surface, and the lower chamfer surface extends towards the blade center at a predetermined angle to form a lower rake surface.

Furthermore, the upper surface is provided with an upper boss, the lower surface is provided with a lower boss, and the upper boss and the lower boss are used as positioning surfaces during cutting.

Furthermore, the upper surface of the upper boss is provided with an upper mounting mark which is in one-to-one correspondence with the side surfaces, the lower surface of the lower boss is provided with a lower mounting mark which is in one-to-one correspondence with the side surfaces.

Further, an annular connecting surface between the side surface of the upper boss and the upper rake surface forms an upper concave plane of the upper surface of the insert, and an upper annular groove is formed between the upper boss and the upper cutting edge; the annular connecting surface between the side surface of the lower boss and the lower rake surface forms a lower concave plane of the lower surface of the blade, and a lower annular groove is formed between the lower boss and the lower cutting edge.

Furthermore, a plurality of upper radial grooves are arranged in the upper annular groove, and extend to the upper boss from the upper rake face corresponding to the arc transition surface along the radial direction; and a plurality of lower radial grooves are arranged in the lower annular groove, and extend to the lower boss from the lower rake face corresponding to the arc transition face along the radial direction.

Further, the side surfaces are eight, and the eight side surfaces intersect with the upper surface and the lower surface respectively to form sixteen main cutting edges and sixteen auxiliary cutting edges.

Further, the upper surface and the lower surface are symmetrically arranged.

The utility model has the beneficial effects that: the face milling blade adopts the front and back double-sided cutting edges, so that the cost performance is higher. The surface precision of the workpiece can be still ensured under the rough working condition. The cutting edge is taken into account, and the impact resistance is strong; high smoothness and low resistance cutting are realized.

Drawings

FIG. 1 is an axial side view of a face milling insert;

FIG. 2 is a front view of a face milling insert;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

in the figure: 1. the cutting tool comprises an upper annular groove, 2, an upper radial groove, 3, a side surface, 4, an arc transition surface, 5, an upper main cutting edge, 6, an upper auxiliary cutting edge, 7, a lower main cutting edge, 8, a lower auxiliary cutting edge, 9, a mounting hole, 10, an upper chamfering surface, 11, an upper rake face, 12, an upper boss and 13, and an upper mounting mark.

Detailed Description

In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention.

Referring to fig. 1-3, a face milling insert comprises an upper surface, a lower surface, eight side surfaces 3 connecting the upper and lower surfaces, a rounded transition surface 4 connecting adjacent side surfaces; the portion where the upper surface and the side surface intersect forms an upper main cutting edge 5, and the portion where the lower surface and the side surface intersect forms a lower main cutting edge 7; the intersection of the upper surface and the arc transition surface forms an upper minor cutting edge 6, and the intersection of the lower surface and the arc transition surface forms a lower minor cutting edge 8. I.e., eight side surfaces intersect the upper and lower surfaces to form sixteen major cutting edges and sixteen minor cutting edges, respectively.

Based on the technical scheme, the face milling blade is a 45-degree face mill, has the maximum cutting depth of 5.5mm, is suitable for various materials, such as steel, stainless steel and cast iron, has positive and negative sixteen cutting edges, and has higher cost performance. The surface precision of the workpiece can be still ensured under the rough working condition. The cutting edge is taken into account, and the impact resistance is strong; high smoothness and low resistance cutting are realized; it is recommended to use a cutter with a diameter of 80-250 mm. It should be noted that the side surface of the face milling insert is used as a positioning surface when the insert is cut, and the side surface functioning as the positioning surface is different when different edges are used.

Further, the center of the blade body is provided with a mounting hole 9 which is a stepped hole symmetrical along the center line. The cutting and the use of the installation of the front and the back side edges are convenient.

Further, the upper main cutting edge and the upper auxiliary cutting edge form an upper cutting edge, and the upper cutting edge is provided with an upper chamfered surface 10; the lower main cutting edge and the lower auxiliary cutting edge form a lower cutting edge, and the lower cutting edge is provided with a lower chamfered surface.

Based on above-mentioned technical scheme, the chamfer can effectively balance the intensity and the steadiness of the cutting edge of undertaking cutting operation, strengthens the wear resistance of cutting edge, has effectively improved the life of blade. Specifically, in milling, the insert shears the workpiece material, and is subjected to a large cutting force, while the insert is subjected to an impact every time it cuts into and out of the workpiece material. The arrangement of the proper chamfered surface can ensure the strength of the blade and ensure that the blade has enough sharpness, so that the cutting resistance and the cutting temperature are not excessively increased, the service life of the blade is further prolonged, or the blade can adopt higher cutting parameters to mill under the condition of the same service life.

Further, the upper chamfered surface 10 extends toward the insert center at a predetermined angle to form an upper rake surface 11, and the lower chamfered surface extends toward the insert center at a predetermined angle to form a lower rake surface.

Further, the upper surface is provided with an upper boss 12, the lower surface is provided with a lower boss, and the upper boss and the lower boss are used as positioning surfaces during cutting. The heights of the upper boss and the lower boss are determined according to the actual positioning condition.

Furthermore, the upper surface of the upper boss is provided with an upper mounting mark, the upper mounting mark corresponds to a plurality of side surfaces one by one, the lower surface of the lower boss is provided with a lower mounting mark 13, and the lower mounting mark corresponds to the side surfaces one by one.

Further, an annular connecting surface between the side surface of the upper boss and the upper rake surface forms an upper concave plane of the upper surface of the insert, and an upper annular groove 1 is formed between the upper boss and the upper cutting edge; the annular connecting surface between the side surface of the lower boss and the lower rake surface forms a lower concave plane of the lower surface of the blade, and a lower annular groove is formed between the lower boss and the lower cutting edge.

Furthermore, a plurality of upper radial grooves 2 are arranged in the upper annular groove, and extend to the upper boss from the upper rake face corresponding to the arc transition face along the radial direction; and a plurality of lower radial grooves are arranged in the lower annular groove, and extend to the lower boss from the lower rake face corresponding to the arc transition face along the radial direction.

Based on above-mentioned technical scheme, ring channel and radial groove play the effect of chip removal and cooling.

Further, the upper surface and the lower surface are symmetrically arranged.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "lower", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above list is only the preferred embodiment of the present invention. It is obvious that the utility model is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the utility model.

Claims

1. A face milling insert characterized by: comprises an upper surface, a lower surface, a plurality of side surfaces connecting the upper surface and the lower surface, and a circular arc transition surface connecting the adjacent side surfaces; the intersection part of the upper surface and the side surface forms an upper main cutting edge, and the intersection part of the lower surface and the side surface forms a lower main cutting edge; the intersection part of the upper surface and the arc transition surface forms an upper secondary cutting edge, and the intersection part of the lower surface and the arc transition surface forms a lower secondary cutting edge.

2. A face milling insert as claimed in claim 1, wherein: the center of the blade body is provided with a mounting hole which is a stepped hole symmetrical along the center line.

3. A face milling insert as claimed in claim 1, wherein: the upper main cutting edge and the upper auxiliary cutting edge form an upper cutting edge, and the upper cutting edge is provided with an upper chamfered surface; the lower main cutting edge and the lower auxiliary cutting edge form a lower cutting edge, and the lower cutting edge is provided with a lower chamfered surface.

4. A face milling insert according to claim 3, wherein: the upper chamfer surface extends towards the center of the blade at a preset angle to form an upper rake surface, and the lower chamfer surface extends towards the center of the blade at a preset angle to form a lower rake surface.

5. A face milling insert according to claim 4, wherein: the upper surface is provided with an upper boss, the lower surface is provided with a lower boss, and the upper boss and the lower boss are used as positioning surfaces during cutting.

6. A face milling insert as claimed in claim 5, wherein: the upper surface of the upper boss is provided with an upper mounting mark which is in one-to-one correspondence with the side surfaces, the lower surface of the lower boss is provided with a lower mounting mark which is in one-to-one correspondence with the side surfaces.

7. A face milling insert as claimed in claim 5, wherein: an annular connecting surface between the side surface of the upper boss and the upper rake surface forms an upper concave plane of the upper surface of the blade, and an upper annular groove is formed between the upper boss and the upper cutting edge; the annular connecting surface between the side surface of the lower boss and the lower rake surface forms a lower concave plane of the lower surface of the blade, and a lower annular groove is formed between the lower boss and the lower cutting edge.

8. A face milling insert as claimed in claim 7, wherein: a plurality of upper radial grooves are arranged in the upper annular groove, and extend to the upper boss from the upper rake face corresponding to the arc transition face along the radial direction; and a plurality of lower radial grooves are arranged in the lower annular groove, and extend to the lower boss from the lower rake face corresponding to the arc transition face along the radial direction.

9. A face milling insert as claimed in claim 1, wherein: the side surfaces are eight, and the eight side surfaces intersect with the upper surface and the lower surface respectively to form sixteen main cutting edges and sixteen auxiliary cutting edges.

10. A face milling insert as claimed in claim 1, wherein: the upper surface and the lower surface are symmetrically arranged.