CN212310958U

CN212310958U - Three-edge appearance milling cutter

Info

Publication number: CN212310958U
Application number: CN202020596938.5U
Authority: CN
Inventors: 傅铭桓
Original assignee: Guangzhou Bada Precision Tool Co ltd
Current assignee: Guangzhou Bada Precision Tool Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2021-01-08
Anticipated expiration: 2030-04-20

Abstract

The utility model relates to a three-edge appearance milling cutter, which comprises a cutter handle and a cutter head, wherein the peripheral surface of the cutter head is provided with a spiral chip groove, a clear edge and a cylinder ligament, the clear edge comprises an arc clear edge and a straight line surface clear edge, the relief angle of the arc clear edge is 12 degrees, and the width is 0.45 mm; the back angle of the straight line surface edge cleaning is 30 degrees, and the width is 0.65 mm; the width of each column ligament is 0.035-0.045 mm, the width of each column ligament in the direction perpendicular to the extending direction of the column ligament is always consistent, and the widths of all the column ligaments are consistent. Through carrying out reasonable design to milling cutter, improved milling cutter's stand wear and tear performance, and then improve its durable degree, in addition, use the utility model discloses a milling cutter processes gained product, its surface quality is good, and outward appearance smooth finish is high.

Description

Three-edge appearance milling cutter

Technical Field

The utility model belongs to the technical field of the cutter and specifically relates to a three sword outward appearance milling cutter is related to.

Background

A milling cutter is a rotary cutter used for milling and provided with one or more cutter teeth, and each cutter tooth cuts off the allowance of a workpiece intermittently in sequence during operation. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine. The appearance milling cutter is a milling cutter for processing the surface of a workpiece to make the appearance meet the design requirements, such as processing of a mobile phone shell, a notebook computer shell and the like. The structure and the size design of the milling cutter concern the service life of the milling cutter and the surface quality of a processed product. The existing milling cutter often has the defects of poor wear resistance caused by the design, thereby reducing the durability of the milling cutter or causing the surface smoothness of the processed product to be not high enough and not meeting the quality requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a three sword outward appearance milling cutter, this milling cutter has improved current milling cutter's wearability, has improved its incorruptibility.

The purpose of the utility model is realized through the following technical scheme:

a three-edge appearance milling cutter comprises a cutter handle and a cutter head, wherein spiral chip grooves, edges and cylinder ligaments are formed in the peripheral surface of the cutter head, the edges comprise arc edges and straight-line surface edges, the back angle of each arc edge is 12 degrees, and the width of each arc edge is 0.45 mm; the back angle of the straight line surface edge cleaning is 30 degrees, and the width is 0.65 mm; the width of each column ligament is 0.035-0.045 mm, the width of each column ligament in the direction perpendicular to the extending direction of the column ligament is always consistent, and the widths of all the column ligaments are consistent.

Further, the end surface of the cutter head has a cutting edge comprising a tooth cut, and the tooth cut rake angle is 8 °.

Further, a first cutter face and a second cutter face are arranged on one side of the tooth cut, the width of the first cutter face is 0.8mm, and the back angle is 9 degrees; the clearance angle of the second blade surface is 18 degrees.

Further, the entry angle of the tooth cutting is 40 degrees, the clearance angle is 5 degrees, and the clearance width is 0.35 mm.

Furthermore, the thickness and the inner diameter of the cutter head core are 2.3mm, the major diameter is 5.0mm, and the edge length is 15 mm.

Further, the diameter of the knife handle is 6mm, and the length of the knife handle is 50 mm.

The utility model discloses following beneficial effect has: the utility model provides a three sword outward appearance milling cutter through carrying out reasonable design to milling cutter, has improved milling cutter's stand wear and tear performance, and then improves its durable degree, in addition, uses the utility model discloses a milling cutter processes gained product, and its surface quality is good, and outward appearance finish is high.

Drawings

Fig. 1 is a schematic structural view of a three-blade exterior milling cutter of the present invention;

FIG. 2 is a schematic view of the structure at angle C in FIG. 1;

FIG. 3 is a cross-sectional view taken along section D-D of FIG. 1;

fig. 4 is a sectional view taken along line E-E of fig. 2.

The specific structure in the figure illustrates that: the cutting tool comprises a tool handle 1, a tool bit 2, a cutting edge 2c, a tooth cutting edge 2cc, a first tool face 2d, a second tool face 2e, a spiral chip removal groove 3, a clear edge 4, a circular arc clear edge 4c, a straight line face clear edge 4d and a cylinder ligament 5.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments shown in the drawings.

A three-edge appearance milling cutter comprises a cutter handle 1 and a cutter head 2, wherein spiral chip grooves 3, a clear edge 4 and a cylinder ligament 5 are formed in the peripheral surface of the cutter head 2, the clear edge 4 comprises an arc clear edge 4c and a straight line face clear edge 4d, the relief angle of the arc clear edge 4c is 12 degrees, and the width of the arc clear edge 4c is 0.45 mm; the back angle of the straight line surface edge cleaning 4d is 30 degrees, and the width is 0.65 mm; the width of the cylinder ligament 5 is 0.035-0.045 mm, the width of each cylinder ligament 5 in the direction perpendicular to the extending direction of the cylinder ligament is always kept consistent, and the widths of all the cylinder ligaments 5 are consistent.

Further, the end surface of the cutting head 2 has a cutting edge 2c, the cutting edge 2c includes a tooth cut 2cc, and the rake angle of the tooth cut 2cc is 8 °.

Further, a first cutter face 2d and a second cutter face 2e are arranged on one side of the tooth cut 2cc, the width of the first cutter face 2d is 0.8mm, and the back angle is 9 degrees; the clearance angle of the second blade surface 2e is 18 °.

Further, the entrance angle of the tooth cutting 2cc is 40 degrees, the clearance angle is 5 degrees, and the clearance width is 0.35 mm.

Furthermore, the thickness and the inner diameter of the 2-core cutter head are 2.3mm, the major diameter is 5.0mm, and the blade length is 15 mm.

Further, the diameter of the knife handle 1 is 6mm, and the length is 50 mm.

This embodiment is through carrying out reasonable design to milling cutter, has improved milling cutter's stand wear and tear performance, and then improves its durable degree, in addition, uses the utility model discloses a milling cutter processes gained product, its surface quality is good, and outward appearance smooth finish is high.

The above mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, that is, all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still included in the scope of the present invention.

Claims

1. The utility model provides a three sword outward appearance milling cutter, includes handle of a knife and tool bit, spiral chip groove, clear limit and cylinder ligament have on the global of tool bit, its characterized in that: the edge cleaning comprises an arc edge cleaning and a linear surface edge cleaning, the back angle of the arc edge cleaning is 12 degrees, and the width of the arc edge cleaning is 0.45 mm; the back angle of the straight line surface edge cleaning is 30 degrees, and the width is 0.65 mm; the width of each column ligament is 0.035-0.045 mm, the width of each column ligament in the direction perpendicular to the extending direction of the column ligament is always consistent, and the widths of all the column ligaments are consistent.

2. A three-edged face milling cutter as defined in claim 1, wherein: the end face of the cutter head has a cutting edge comprising a tooth cut, the tooth cut rake angle being 8 °.

3. A three-edged face milling cutter as defined in claim 2, wherein: a first cutter face and a second cutter face are arranged on one side of the tooth cut, the width of the first cutter face is 0.8mm, and the rear angle is 9 degrees; the clearance angle of the second blade surface is 18 degrees.

4. A three-edged face milling cutter as defined in claim 2, wherein: the entry angle of the tooth cut is 40 degrees, the clearance angle is 5 degrees, and the clearance width is 0.35 mm.

5. A three-edged face milling cutter as defined in claim 1, wherein: the thickness and the inner diameter of the cutter head core are 2.3mm, the major diameter is 5.0mm, and the edge length is 15 mm.

6. A three-edged face milling cutter as defined in claim 5, wherein: the diameter of handle of a knife is 6mm, and length is 50 mm.