CN215902812U

CN215902812U - Integral hard alloy coating combined three-edge keyway milling cutter

Info

Publication number: CN215902812U
Application number: CN202121557014.5U
Authority: CN
Inventors: 赫磊锋; 田小卫
Original assignee: Xi'an Ktl Cutter Manufacturing Co ltd
Current assignee: Xi'an Ktl Cutter Manufacturing Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-02-25
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a solid hard alloy coating combined three-edge keyway milling cutter, which is a solid hard alloy cutter and comprises cutter teeth, a neck and a cutter handle, wherein the cutter teeth comprise a left 45-degree chamfer cutting edge, a keyway rectangular cutting edge and a right 45-degree chamfer cutting edge, the left 45-degree chamfer cutting edge is intersected with the left root of the keyway rectangular cutting edge, the tips of two sides of the keyway rectangular cutting edge are provided with R0.25 arc transition chamfer cutting edges, the right 45-degree chamfer cutting edge is intersected with the right root of the keyway rectangular cutting edge, the cutter teeth are provided with 90-degree straight chip grooves, the right 45-degree chamfer cutting edge is connected with the neck, and the neck is connected with the cutter handle. The utility model improves the part processing precision, improves the processing efficiency, reduces the number of unqualified parts, reduces the cutter inventory, prolongs the service life of the cutter by coating, and enhances the processing economy.

Description

Integral hard alloy coating combined three-edge keyway milling cutter

Technical Field

The utility model relates to the field of machining, in particular to a three-edge keyway milling cutter combined with an integral hard alloy coating.

Background

In the machining field, the key groove of the machined shaft part, the R chamfer at the bottom of the key groove and the 45-degree chamfers at two sides of the key groove outlet are machined, multiple cutters are generally needed for machining and forming, multiple cutters are replaced, multiple times of clamping are conducted, the repeated positioning times are multiple, the machining efficiency is low, the machining characteristic precision requirement is low, the cutters are easy to damage, the defective products of the parts are high, and the cutting machining temperature is too high to cause the cutter to have a short service life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a solid hard alloy coating combined three-edge keyway milling cutter to solve the technical problem.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a trilateral sword keyway milling cutter of whole carbide coating combination, cutter are whole carbide cutter, including sword tooth, neck and handle of a knife, the sword tooth includes left 45 chamfer blades, keyway rectangle blade, right side 45 chamfer blades, and left side 45 chamfer blades intersect with keyway rectangle blade left side root, and keyway rectangle blade both sides point portion has R0.25 circular arc transition chamfer blade, and right side 45 chamfer blades intersect with keyway rectangle blade right side root, and 90 chip grooves in line have been seted up to the sword tooth, and right side 45 chamfer blades link to each other with the neck, and the neck links to each other with the handle of a knife.

Preferably: the left 45-degree chamfer cutting edge and the right 45-degree chamfer cutting edge are axisymmetric with the central line of the rectangular cutting edge of the key groove.

Preferably: 12 back angles are respectively arranged on the 45-degree chamfer cutting edge on the left side and the 45-degree chamfer cutting edge on the right side.

Preferably: the straight chip grooves are formed in the left 45-degree chamfering edge, the key groove rectangular edge and the right 45-degree chamfering edge along the axis direction.

Preferably: the sharp corners of the two sides of the rectangular cutting edge of the key groove are provided with R0.25 arc transition chamfer cutting edges and 8-degree rectangular cutting edge relief angles of the key groove, and the two sides of the rectangular cutting edge of the key groove are provided with 1.5-degree rectangular cutting edge side clearance angles of the key groove.

Preferably: a27-degree transition chamfer is arranged between the neck and the knife handle.

Preferably: the surfaces of the cutter tooth parts are coated with AlCrN coatings.

Compared with the prior art, the utility model has the following advantages: the utility model improves the part processing precision, improves the processing efficiency, reduces the number of unqualified parts, reduces the cutter inventory, prolongs the service life of the cutter by coating, and enhances the processing economy.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is an enlarged view of the rectangular cutting edge of the keyway;

in the figure: 1. the left side is chamfered at an angle of 45 degrees; 2. the root of the left side of the rectangular cutting edge of the key groove; 3. r0.25 arc transition chamfer cutting edge; 4. a keyway rectangular cutting edge; 5. a keyway rectangular edge side clearance angle; 6. the root of the right side of the rectangular cutting edge of the key groove; 7. the right side is chamfered at an angle of 45 degrees; 8. phi 6 neck; 9. a straight chip groove; 10. 27-degree transition chamfer; 11. a knife handle; 12. sharp corners; 13. key slot rectangular blade relief angle.

Detailed Description

The utility model is explained in further detail below with reference to the figures and the specific embodiments. As shown in fig. 1-3, a solid carbide coating combined three-sided blade keyway milling cutter, the cutter is a solid carbide cutter, and comprises cutter teeth, a neck 8 and a handle 11, the cutter teeth comprise a left 45-degree chamfer cutting edge 1, a keyway rectangular cutting edge 4 and a right 45-degree chamfer cutting edge 7, the left 45-degree chamfer cutting edge 1 is intersected with a left root 2 of the keyway rectangular cutting edge, two side tips of the keyway rectangular cutting edge 4 are provided with R0.25 arc transition chamfer cutting edges 3, the right 45-degree chamfer cutting edge 7 is intersected with a right root 6 of the keyway rectangular cutting edge, the cutter teeth are provided with 90-degree straight chip grooves 9, the right 45-degree chamfer cutting edge 7 is connected with the phi 6 neck 8, and the phi 6 neck 8 is connected with the handle 11.

The left 45-degree chamfer cutting edge 1 and the right 45-degree chamfer cutting edge 7 are axisymmetric with the central line of the key groove rectangular cutting edge 4. 12 back angles are respectively arranged on the left 45-degree chamfer cutting edge 1 and the right 45-degree chamfer cutting edge 7. The straight chip groove 9 is arranged along the axis direction on the left 45-degree chamfer cutting edge 1, the key groove rectangular cutting edge 4 and the right 45-degree chamfer cutting edge 7. The sharp corners of the two sides of the key groove rectangular cutting edge 4 are provided with R0.25 arc transition

chamfer cutting edges

3 and 8 key groove rectangular cutting edge relief angles 13, and the two sides of the key groove rectangular cutting edge 4 are provided with 1.5 key groove rectangular cutting edge side clearance angles 5. A27-degree transition chamfer 10 is arranged between the phi 6 neck 8 and the tool holder 11. The surfaces of the cutter tooth parts are coated with AlCrN coatings.

In order to improve the part machining precision, clamp shaft parts and mount and adjust a cutter to a part machining position, the integral hard alloy coating three-edge combined key groove milling cutter can finish machining key grooves, R-shaped chamfers at the bottoms of the key grooves, outlet chamfers at two sides of the key grooves and the like in accordance with the sizes at one time, so that the part machining quality is improved, the machining efficiency is improved, the number of defective parts is reduced, the cutter stock is saved, and the part single piece machining cost is reduced.

The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the utility model.

Claims

1. The utility model provides a three-sided sword keyway milling cutter of whole carbide coating combination which characterized in that: the cutter is whole carbide tool, including sword tooth, neck and handle of a knife, the sword tooth includes left 45 chamfer blades, keyway rectangle blade, the 45 chamfer blades in right side, and left side 45 chamfer blades intersect with keyway rectangle blade left side root, and keyway rectangle blade both sides point portion has R0.25 circular arc transition chamfer blade, and right side 45 chamfer blades intersect with keyway rectangle blade right side root, and 90 chip grooves in the row have been seted up to the sword tooth, and right side 45 chamfer blades link to each other with the neck, and the neck links to each other with the handle of a knife.

2. The solid carbide coated composite face and edge key slot cutter as claimed in claim 1, wherein: the left 45-degree chamfer cutting edge and the right 45-degree chamfer cutting edge are axisymmetric with the central line of the rectangular cutting edge of the key groove.

3. The solid carbide coated composite face and edge key slot cutter as claimed in claim 1, wherein: 12 back angles are respectively arranged on the 45-degree chamfer cutting edge on the left side and the 45-degree chamfer cutting edge on the right side.

4. The solid carbide coated composite face and edge key slot cutter as claimed in claim 1, wherein: the straight chip grooves are formed in the left 45-degree chamfering edge, the key groove rectangular edge and the right 45-degree chamfering edge along the axis direction.

5. The solid carbide coated composite face and edge key slot cutter as claimed in claim 1, wherein: the sharp corners of the two sides of the rectangular cutting edge of the key groove are provided with R0.25 arc transition chamfer cutting edges and 8-degree rectangular cutting edge relief angles of the key groove, and the two sides of the rectangular cutting edge of the key groove are provided with 1.5-degree rectangular cutting edge side clearance angles of the key groove.

6. The solid carbide coated composite face and edge key slot cutter as claimed in claim 1, wherein: a27-degree transition chamfer is arranged between the neck and the knife handle.

7. The solid carbide coated composite face and edge key slot cutter as claimed in claim 1, wherein: the surfaces of the cutter tooth parts are coated with AlCrN coatings.