CN219852301U

CN219852301U - Indexing cutter groove round nose milling cutter

Info

Publication number: CN219852301U
Application number: CN202320077434.6U
Authority: CN
Inventors: 田江松; 苏朝阳; 王波; 易亮; 覃家达
Original assignee: Dongguan Xinyan Precision Tool Co ltd
Current assignee: Dongguan Xinyan Precision Tool Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-10-20
Anticipated expiration: 2033-01-10

Abstract

The utility model discloses an indexing cutter slot round nose milling cutter, which comprises a cutter handle, a cutting part, a peripheral edge and an end edge; the cutting part is arranged at the front end of the cutter handle; four cutting edges are respectively spirally arranged on the outer side of the cutting part to the right, and one cutter groove is arranged between every two adjacent milling cutting edges, namely, four cutter grooves are arranged on the outer side of the cutting part; the helix angles of the four cutter grooves are respectively arranged in different graduation manners; the peripheral edge is arranged on the outer side of the milling margin; the front angle of the peripheral edge is 2 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 blade is provided at the front end of the cutting portion.

Description

Indexing cutter groove round nose milling cutter

Technical Field

The utility model belongs to the field of CNC machining, and particularly relates to a circular nose milling cutter for an indexing cutter groove.

Background

In the 3C industry, machining tools for parts such as mobile phones or computers have extremely high requirements, and are suitable for large cutting, such as intermittent cutting of the margins of the work price, anti-collapse, anti-vibration and the like, and milling tools are rotary tools for milling machining and provided with one or more cutter teeth. When in work, each cutter tooth cuts off the allowance of the work price intermittently in turn. Milling cutters are mainly used for machining planes, steps, grooves, forming surfaces, cutting workpieces and the like on milling machines. The existing circular nose knife has serious abrasion of the cutting edge after a period of processing, and the service life of the knife is lower. Therefore, there is a need to provide a technical means to solve the above-mentioned drawbacks.

Disclosure of Invention

The utility model provides a circular nose milling cutter with an indexing cutter groove for solving the technical problems.

The utility model adopts the following solution scheme for realizing the technical effects:

an indexing cutter slot round nose milling cutter comprises a cutter handle, a cutting part, a peripheral edge and an end edge; the cutting part is arranged at the front end of the cutter handle; four cutting edges are respectively spirally arranged on the outer side of the cutting part to the right, and one cutter groove is arranged between every two adjacent milling cutting edges, namely, four cutter grooves are arranged on the outer side of the cutting part; the helix angles of the four cutter grooves are respectively arranged in different graduation manners; the peripheral edge is arranged on the outer side of the milling margin; the front angle of the peripheral edge is 2 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 blade is provided at the front end of the cutting portion.

Preferably, the helix angles of the four flutes are respectively provided in different indexing arrangements of 33 degrees to 35 degrees.

Preferably, the helix angle of the peripheral edge is 35 degrees.

Preferably, the rake angle of the end edge is 2 degrees; the first relief angle of the end edge is 6 degrees; the second relief angle of the end edge is 16 degrees.

The beneficial effects of the utility model are as follows: the cutter parameters are optimized from the design angle, the front angle and the rear angle of the peripheral edge are optimized aiming at the cutter abrasion part, the friction area between the cutting edge margin and the milling surface is reduced, and the service life of the circular nose cutter is prolonged.

Drawings

FIG. 1 is a schematic side view of a nose milling cutter according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a cutting portion according to an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of region I of FIG. 2;

FIG. 4 is a schematic view of an end blade according to an embodiment of the present utility model;

fig. 5 is a schematic view of the angle of the end blade according to an embodiment of the present utility model.

Identification description: the cutter comprises a cutter handle, a 2-cutting part, a 3-peripheral edge, a 4-end edge, a 5-cutter groove, a front angle of the a-peripheral edge, a first rear angle of the B-peripheral edge, a second rear angle of the C-peripheral edge, a front angle of the A-end edge, a first rear angle of the B-end edge and a second rear angle of the C-end edge.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. It will be understood that when an element is referred to as being "mounted" 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. When an element is referred to as being "fixedly connected to" another element, it can be conventionally connected by welding or bolting or gluing.

Referring to fig. 1 to 5, in a preferred embodiment of the present utility model, an indexing cutter pocket nose and round milling cutter is disclosed, comprising a cutter shank 1, a cutting portion 2, a peripheral edge 3 and an end edge 4; the cutting part 2 is arranged at the front end of the tool handle 1; four cutting edges are respectively spirally arranged on the outer side of the cutting part 2 to the right, and a cutter groove 5 is arranged between every two adjacent milling cutting edges, namely, four cutter grooves 5 are arranged on the outer side of the cutting part 2; the helix angles of the four tool grooves 5 are respectively arranged in different graduation manners; the peripheral edge 3 is arranged outside the milling margin; the front angle a of the peripheral edge 3 is 2 degrees; the first relief angle b of the peripheral edge 3 is 8 degrees; the second relief angle c of the peripheral edge 3 is 15 degrees; the end blade 4 is provided at the front end of the cutting portion 2.

Specifically, the helix angles of the four sipes 5 are respectively arranged in different graduation of 33 degrees to 35 degrees.

Specifically, the helix angle of the peripheral edge 3 is 35 degrees.

Specifically, the rake angle a of the end blade 4 is 2 degrees; the first relief angle B of the end edge 4 is 6 degrees; the second relief angle C of the end edge 4 is 16 degrees.

From the above description, the utility model has a long service life.

While the preferred embodiments of the present utility model have been described in detail in connection with the drawings of the specification, it should be noted that the scope of the present utility model includes but is not limited to the above embodiments; the specific structure disclosed in the drawings of the specification is also a preferred embodiment of the present utility model, and other embodiments can be developed on the basis of the above description by those skilled in the art, so that any simple modification or equivalent substitution without departing from the innovative concepts of the present utility model is encompassed by the present utility model, and falls within the scope of protection of the present utility model.

Claims

1. An indexing flute nose milling cutter, comprising:

a knife handle;

a cutting portion; the cutting part is arranged at the front end of the cutter handle; four cutting edges are respectively spirally arranged on the outer side of the cutting part to the right, and one cutter groove is arranged between every two adjacent milling cutting edges, namely, four cutter grooves are arranged on the outer side of the cutting part; the helix angles of the four cutter grooves are respectively arranged in different graduation manners;

a peripheral edge; the peripheral edge is arranged on the outer side of the milling margin; the front angle of the peripheral edge is 2 degrees; the first relief angle of the peripheral edge is 8 degrees; the second relief angle of the peripheral edge is 15 degrees;

an end blade; the end blade is provided at the front end of the cutting portion.

2. The indexable insert pocket nose router bit of claim 1 wherein: the helix angles of the four cutter grooves are respectively arranged in different graduation modes of 33 degrees to 35 degrees.

3. The indexable insert pocket nose router bit of claim 1 wherein: the helix angle of the peripheral edge is 35 degrees.

4. The indexable insert pocket nose router bit of claim 1 wherein: the front angle of the end edge is 2 degrees; the first relief angle of the end edge is 6 degrees; the second relief angle of the end edge is 16 degrees.