CN210412734U

CN210412734U - Pneumatic milling cutter with protection

Info

Publication number: CN210412734U
Application number: CN201920719667.5U
Authority: CN
Inventors: 魏学志; 王涛; 杨海燕; 王小利; 赵平
Original assignee: AVIC Shaanxi Aircraft Industry Group Corp Ltd
Current assignee: Shaanxi Aircraft Industry Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-04-28
Anticipated expiration: 2029-05-17

Abstract

The utility model provides a pnematic milling cutter of area protection. This pneumatic milling cutter includes: the knife comprises a cutting edge, a knife body and a knife handle, wherein the cutting edge surrounds the cylindrical wall of the knife body, a fillet is arranged at the front end of the cylindrical wall of the knife body, and the cutting edge surrounds the cylindrical wall of the knife body except the fillet.

Description

Pneumatic milling cutter with protection

Technical Field

The utility model discloses a machining field relates to a pnematic milling cutter of area protection.

Background

In the assembly of airplane parts, the removal of part allowance, particularly the removal of skin part allowance, is a main allowance removal method by using a pneumatic milling cutter for milling. In the process, a margin line needs to be marked on the part, and then an operator holds the pneumatic drill to clamp the pneumatic milling cutter for milling. In the process of milling and repairing parts by clamping a pneumatic milling cutter by using a handheld pneumatic drill, the pneumatic drill is often unstable to hold, and particularly when the milling cutter with the diameter phi of 40 is clamped, the front end edge part (shown in figure 1) of the milling cutter scratches the surface of the part due to tool jump.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes mill the problem of repairing part in-process fish tail part at handheld pneumatic milling cutter of pneumatic drill centre gripping.

In a first aspect, a protected pneumatic milling cutter is provided, which includes: the knife comprises a cutting edge, a knife body and a knife handle, wherein the cutting edge surrounds the cylindrical wall of the knife body, a fillet is arranged at the front end of the cylindrical wall of the knife body, and the cutting edge surrounds the cylindrical wall of the knife body except the fillet.

Further, the height of the blade is the same as the height of the rounded corner.

Furthermore, a weight reduction groove is formed in the front end face of the knife body.

Furthermore, the joint of the weight-reducing groove and the front end face is of a chamfer structure.

Furthermore, the cutting edge, the knife body and the knife handle are integrally formed.

Further, the radius of the fillet is 6-10 mm.

Furthermore, the processing material of the pneumatic milling cutter is an aluminum piece.

Further, the diameter of the knife body is as follows: 20mm, 30mm or 40 mm.

The utility model has the advantages that: the problem that the surface of a part is scratched by a jump cutter in the process of milling and repairing the part by using a handheld pneumatic drill to clamp a pneumatic milling cutter is solved, the structure of the part scratched by the milling cutter is fundamentally changed, and the possibility of scratching the part is eliminated. Thereby reducing the surface scratch of the part and improving the surface quality of the part.

Drawings

The utility model comprises 3 drawings, the drawings and the description of the drawings are as follows:

FIG. 1 is a schematic view of a conventional pneumatic milling cutter;

fig. 2 is a schematic structural view of the pneumatic milling cutter provided by the present invention;

fig. 3 is a schematic structural view of the pneumatic milling cutter provided by the present invention;

wherein: 1. the front end blade part of the pneumatic milling cutter; 2. the front end of the pneumatic milling cutter is chamfered; 3, a blade; 4. a knife handle; and 5, lightening the grooves.

Detailed Description

The pneumatic milling cutter with protection of the utility model is explained in detail with the attached drawings:

in order to solve the problems, the pneumatic milling cutter with the rounded front end (as shown in fig. 2 and 3) is provided, and comprises a cutter handle 4 and a cutting edge 3. Its cutting edge 3 does not penetrate to the front end surface in comparison with a conventional milling cutter and is rounded at the front end 2. Therefore, when the handheld pneumatic drill is used for clamping the pneumatic milling cutter to mill and repair parts, the front end of the milling cutter can be effectively prevented from scratching the parts after the cutter jumping occurs.

Claims

1. The utility model provides a pnematic milling cutter of area protection which characterized in that includes: the knife comprises a cutting edge, a knife body and a knife handle, wherein the cutting edge surrounds the cylindrical wall of the knife body, a fillet is arranged at the front end of the cylindrical wall of the knife body, and the cutting edge surrounds the cylindrical wall of the knife body except the fillet.

2. The wind mill of claim 1 wherein the height of the cutting edge and the height of the rounded corner are the same.

3. The air-driven milling cutter according to claim 1, wherein the blade body has a weight-reducing recess formed in a front end surface thereof.

4. The wind mill according to claim 3, wherein the intersection of the weight-reducing recess and the front face is chamfered.

5. The wind mill as set forth in claim 1 wherein said blade, said body and said shank are integrally formed.

6. The wind mill of claim 1, wherein the radius of the rounded corner is 6-10 mm.

7. The wind mill of claim 1 wherein the material being worked on the wind mill is aluminum.

8. The wind mill as set forth in claim 1, wherein the blade body has a diameter of: 20mm, 30mm or 40 mm.