CN216938604U

CN216938604U - High strength PCD bulb milling cutter

Info

Publication number: CN216938604U
Application number: CN202123097309.1U
Authority: CN
Inventors: 张志红
Original assignee: Suzhou Shande Precision Tools Co ltd
Current assignee: Suzhou Shande Precision Tools Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-07-12
Anticipated expiration: 2031-12-10

Abstract

The application discloses high strength PCD bulb milling cutter, including the handle of a knife, with handle of a knife one end integrated into one piece's tool bit and set up a plurality of cutting edges on the tool bit, the tool bit of tool bit for adopting the PCD material to make, the handle of a knife of handle of a knife for adopting carbide to make. In this application, the cutting edge all adopts the PCD material to make with the tool bit, and PCD is the industrial artificial material that hardness is the highest, and PCD ball-end milling cutter has hardness height, high temperature resistant, the wearability is strong, the cutting edge is sharp, the friction is little, advantages such as the heat conductivity is good to this wearability and the high temperature resistant performance that have improved tool bit and cutting edge has improved PCD ball-end milling cutter's structural strength, is favorable to prolonging PCD ball-end milling cutter's life.

Description

High strength PCD bulb milling cutter

Technical Field

The application relates to the technical field of milling cutters, and more particularly relates to a high-strength PCD ball-end milling cutter.

Background

With the development of science and technology, the requirement of the machine manufacturing industry on the machining precision of workpieces is higher and higher, and as is well known, a ball-end cutter is a punching cutter, and the size of an error and the precision of a workpiece hole drilled by the ball-end cutter are determined according to the structural strength of the ball-end cutter, and the service life of the cutter is further determined.

The ball milling cutter in the prior general technology is usually made of hard alloy, although the hard alloy has certain hardness, the hardness is limited, after long-term use, the cutting edge is easy to be worn to a greater degree, and the service life of the ball milling cutter is shortened.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present application provides a high strength PCD ball nose milling cutter.

The application provides a high strength PCD ball-end milling cutter adopts following technical scheme:

the utility model provides a high strength PCD bulb milling cutter, includes the handle of a knife, with handle of a knife one end integrated into one piece's tool bit and set up a plurality of cutting edges on the tool bit, the tool bit is the tool bit of adopting the PCD material to make, the handle of a knife of adopting carbide to make.

Through above-mentioned technical scheme, cutting edge and tool bit all adopt the PCD material to make, and PCD is the industrial artificial material that hardness is the highest, and PCD ball-end milling cutter has hardness height, high temperature resistant, the wearability is strong, the cutting edge is sharp, the friction is little, the heat conductivity is good advantage such as to this wearability and high temperature resistant performance that has improved tool bit and cutting edge has improved PCD ball-end milling cutter's structural strength, is favorable to prolonging PCD ball-end milling cutter's life.

Further, the total length of the tool shank and the tool bit is 160mm, wherein the length of the tool shank is 116 mm.

Furthermore, the cross section of the knife handle is circular, and the diameter of the cross section circle of the knife handle is 40 +/-0.011 mm.

Furthermore, the cross section of the cutter head is also circular, and the diameter of the cross section circle of the cutter head is 44 +/-0.02 mm.

Furthermore, a groove body is formed in the side wall of the knife handle.

Through the technical scheme, the sizes of the cutter handle, the cutter head and the cutting edge are reasonably arranged, the structural strength of the cutter head and the cutting edge is guaranteed, and the service life of the high-strength PCD ball-end milling cutter is prolonged.

Furthermore, a groove body is formed in the side wall of the knife handle.

Through the technical scheme, the handle of a knife is held to this in-process at the installation handle of a knife of staff of being convenient for, and the cell body has reduced the probability of skidding. In addition, when the cutter is installed, the cutter body on the cutter handle is matched with the fixing block on the milling cutter seat, so that the cutter handle can be firmly installed on the milling cutter seat by a worker.

Further, the included angle between the side wall of the groove body close to one side of the tool bit and the side wall of the tool holder is 45 degrees, and the included angle between the bottom wall of the groove body and the side wall of the tool holder is 2 degrees.

Furthermore, the depth of the inner bottom wall of the groove body close to one side of the cutter head is 4.36 mm.

Through the technical scheme, the size of the groove body is reasonable in design, the structural strength of the cutter handle is guaranteed, and meanwhile, the high-strength PCD ball end milling cutter can be conveniently installed by a worker.

Furthermore, a fillet is formed at the intersection of the side wall of the knife handle and the end face of one side of the knife handle, which is far away from the knife head.

Through the technical scheme, sharp edges and corners at the end part of the knife handle are reduced, and the safety of a worker in the process of using the knife handle is improved.

Furthermore, coolant conveying holes are jointly formed in the tool shank and the tool bit, and liquid outlet holes communicated with the coolant conveying holes are formed in the tool bit.

Through the technical scheme, the cooling liquid conveying holes are conveniently input with cooling liquid at a high speed by workers, and then the cooling liquid is sprayed out of the liquid outlet holes in the tool bit, so that the workpiece machining process is cooled, the workpiece cooling efficiency is improved, and the workpiece machining work is facilitated.

In summary, the present application includes at least one of the following advantageous technical effects:

(1) in the application, the cutting edge and the cutting head are both made of PCD materials, PCD is an industrial artificial material with the highest hardness, and the PCD ball-end milling cutter has the advantages of high hardness, high temperature resistance, strong wear resistance, sharp cutting edge, small friction, good heat conductivity and the like, so that the performances of wear resistance, high temperature resistance and the like of the cutting edge and the cutting edge are improved, the structural strength of the PCD ball-end milling cutter is improved, and the service life of the PCD ball-end milling cutter is prolonged;

(2) in this application, the size of handle of a knife, tool bit and cutting edge keeps certain proportion for tool bit and cutting edge keep good structural strength, are favorable to prolonging ball end mill's life.

Drawings

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

FIG. 2 is a schematic view of a tool tip according to the present application;

fig. 3 is a schematic plan view of the present application.

The reference numbers in the figures illustrate:

1. a knife handle; 11. round corners; 2. a cutter head; 3. a blade; 4. a trough body; 5. a coolant delivery orifice; 6. and a liquid outlet hole.

Detailed Description

The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by those of ordinary skill in the art without any inventive work based on the embodiments in the present application belong to the protection scope of the present application.

Example 1:

the present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses a high-strength PCD ball-end milling cutter, please refer to fig. 1-3, including handle of a knife 1, tool bit 2 and cutting edge 3. The knife handle 1 is of a round rod-shaped structure, the cross section of the knife handle 1 is circular, and the knife handle 1 is made of hard alloy materials, so that the knife handle 1 has strong structural strength. The cross section of the tool bit 2 is circular, the axis of the tool bit is overlapped with the axis of the tool handle 1, and one end of the tool bit 2 and one end of the tool handle 1 are integrally formed. The cutting edges 3 are arranged in a plurality of numbers, and the cutting edges 3 are fixedly connected with one side, far away from the knife handle 1, of the knife head 2. In this embodiment, tool bit 2 and cutting edge 3 all adopt the PCD material to make, cutting edge 3 is the same with 2 materials of tool bit, PCD is the industrial artificial material that hardness is the highest, PCD ball milling cutter has hardness height, high temperature resistant, the wearability is strong, the cutting edge is sharp, the friction is little, advantages such as heat conductivity is good to this wearability and high temperature resistant performance that has improved tool bit 2 and cutting edge 3 has improved PCD ball milling cutter's structural strength, be favorable to prolonging PCD ball milling cutter's life.

In this embodiment, the total length of the shank 1 and the cutting head 2 is 160mm, wherein the length of the shank 1 is 116 mm. The cross section of the knife handle 1 and the cross section of the knife head 2 are both circular, the diameter of the cross section circle of the knife handle 1 is 40 +/-0.011 mm, the diameter of the cross section circle of the knife head 2 is 44 +/-0.02 mm, and the length of the knife edge 3 is 8 mm.

The side wall of the knife handle 1 is provided with the groove body 4, so that a worker can hold the knife handle 1 by hand in the process of installing the knife handle 1, and the groove body 7 reduces the slip probability. In addition, when the installation, the cutter body on the handle of a knife 1 cooperates with the fixed block on the milling cutter seat, is favorable to the staff firmly to install handle of a knife 1 on the milling cutter seat.

In this embodiment, an included angle between a side wall of the groove body 4 close to one side of the tool bit 2 and a side wall of the tool holder 1 is 45 °, and an included angle between a bottom wall of the groove body 4 and the side wall of the tool holder 1 is 2 °. The depth of the inner bottom wall of the groove body 4 close to one side of the cutter head 2 is 4.36 mm.

The round angle 11 is chamfered at the intersection of the side wall of the knife handle 1 and the end face of the knife handle 1 far away from one side of the knife head 2, so that sharp edges and corners of the end part of the knife handle 1 are reduced, and the safety of a worker in the process of using the knife handle 1 is improved. Coolant liquid delivery hole 5 has been seted up jointly in handle of a knife 1 and the tool bit 2, set up on the tool bit 2 with the play liquid hole 6 of coolant liquid delivery hole 5 intercommunication to this is convenient for the staff with the high-speed cooling liquid of inputing of cooling into coolant liquid delivery hole 5, by play liquid hole 6 blowout on the tool bit afterwards, so that cool down to the work piece course of working, has improved work piece cooling efficiency, is favorable to going on of work piece processing work.

The implementation principle of a high-strength PCD ball-end milling cutter in the embodiment of the application is as follows:

tool bit 2 and cutting edge 3 all adopt the PCD material to make, cutting edge 3 is the same with tool bit 2 material, PCD is the industrial artificial material that hardness is the highest, PCD ball milling cutter has hardness height, high temperature resistant, the wearability is strong, the cutting edge is sharp, the friction is little, advantages such as the heat conductivity is good to this wearability and the high temperature resistant performance that have improved tool bit 2 and cutting edge 3 has improved PCD ball milling cutter's structural strength, be favorable to prolonging PCD ball milling cutter's life.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A high strength PCD bulb milling cutter which characterized in that: the tool comprises a tool shank (1), a tool bit (2) integrally formed with one end of the tool shank (1) and a plurality of cutting edges (3) arranged on the tool bit (2), wherein the tool bit (2) is made of PCD materials, and the tool shank (1) is made of hard alloy;

the total length of the knife handle (1) and the knife head (2) is 160mm, wherein the length of the knife handle (1) is 116 mm;

the cross section of the knife handle (1) is circular, and the diameter of the cross section circle of the knife handle (1) is 40 +/-0.011 mm;

the cross section of the cutter head (2) is also circular, and the diameter of the cross section circle of the cutter head (2) is 44 +/-0.02 mm;

the length of the cutting edge (3) is 8 mm;

a groove body (4) is formed in the side wall of the knife handle (1);

the included angle between the side wall of one side, close to the tool bit (2), of the groove body (4) and the side wall of the tool handle (1) is 45 degrees, and the included angle between the inner bottom wall of the groove body (4) and the side wall of the tool handle (1) is 2 degrees.

2. A high strength PCD ball nose mill as claimed in claim 1, wherein: the depth of the inner bottom wall of the groove body (4) close to one side of the cutter head (2) is 4.36 mm.

3. A high strength PCD ball nose mill as claimed in claim 2, wherein: a round corner (11) is formed at the intersection of the side wall of the cutter handle (1) and the end face of one side, far away from the cutter head (2), of the cutter handle (1).

4. A high strength PCD ball nose mill as claimed in claim 3, wherein: coolant liquid delivery holes (5) are jointly formed in the tool shank (1) and the tool bit (2), and liquid outlet holes (6) communicated with the coolant liquid delivery holes (5) are formed in the tool bit (2).