CN2082209U

CN2082209U - Turning type double knife-edge milling cutter

Info

Publication number: CN2082209U
Application number: CN 90222475
Authority: CN
Inventors: 王裕同
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-10-23
Filing date: 1990-10-23
Publication date: 1991-08-07

Abstract

The utility model relates to a turning type double knife-edge milling cutter which is suitable for two or more than two plane surfaces which are correspondingly parallel and the workpiece processing of having no the requirement of a right angle. The turning type double knife-edge milling cutter is particularly suitable for the processing of the correspondingly parallel plane surfaces in the workpieces such as an arm class and a support frame class. The utility model is composed of a discoid knife body and a knife blade of 4 multiplied by H16. The utility model is characterized in that a tool cutting edge angle Kr=85 DEG-89 DEG, a tool minor cutting edge angle Kr'=1 DEG-5 DEG, which is processed out on the knife body, and the knife blade adopts an aequilate negative chamfering. The process technical level and the work efficiency can be improved, and the cost can be reduced through using the utility model.

Description

Turning type double knife-edge milling cutter

The utility model relates to a kind of indexable milling cuttter with double-faced edges, is applicable to the plane of two or more opposing parallel, and does not have the processing of the workpiece of right angle requirement, is specially adapted to the processing on the opposing parallel plane in arm class, the support class workpiece.

The indexable side and face milling cutter of market supply now, cutter hub is a plate-like, two sides cutter tooth number is 12～20, by the wedge pressure type blade is fixed on the cutter hub, its shape as shown in Figure 1, tool cutting edge angle Kr=90 °, auxiliary angle Kr '=2 °, anterior angle r ₀=5 °, s=5 ° of cutting edge inclination λ, auxiliary angle grind on 4 * H16 blade, and blade becomes parallelogram.Thereby following shortcoming arranged:

1, the blade transposition can only be used two blades, thereby blade consumption is excessive, has increased production cost.

2, main inclined to one side 90 °, nose angle diminishes relatively, and shock resistance is relatively poor.

The purpose of this utility model is that the operational characteristic at workpiece provides a kind of novel indexable milling cuttter with double-faced edges, overcome the shortcoming of indexable side and face milling cutter, solve the highly-efficient processing problem on the opposing parallel plane of workpiece such as arm class, support class, improve technology level, reduce production costs.

The purpose of this utility model is achieved in that Kr=85 °～89 ° of tool cutting edge angles (1), directly process in auxiliary angle (2) Kr '=1 °～5 ° blade locating slots on the plate-like cutter hub, be in the blade locating slot of plate-like cutter hub locating surface (3) and discal blade axon to angle (4) equal auxiliary angle, anterior angle r ₀=5 °, relief angle α ₀S=5 ° of=6 °, cutting edge inclination λ, the fixed form of its cutter hub and blade still adopts the wedge pressure type, axial location is adjustable, and thickening cutter hub, increasing single face cutter tooth number is 8～14, and blade is directly to adopt 4 * H16 square blade, after grinding 45 ° of transitional edges (5), can not grind wiper edges, blade adopts wide negative chamfered edge (6).Adopt above design, can make indexable milling cuttter with double-faced edges such as series such as φ 100～φ 300 grades.

Fig. 2 be embodiment of the present utility model one of them: Kr=88 °, Kr '=2 °, D=175, d=40.

The blade shapes embodiment that Fig. 3 adopts for the utility model, its inscribed circle diameter (7) d ₁=16, blade is a square, negative land width of the face (8) 0.1～0.2, and chamfered edge angle (9) is negative 10 °.

Use the utility model and former indexable side and face milling cutter that following advantage is relatively arranged:

1, tool cutting edge angle is less than 90 °, thereby strengthened nose angle, improved shock resistance;

2, auxiliary angle directly processes on cutter hub, just can use 4 blades of 4 * H16 blade, and the blade utilization rate doubles, and has reduced production cost;

3, because auxiliary angle is little, and blade can not grind wiper edges, adopts wide negative chamfered edge, about in use blade was regardless of, cutter hub need not change face, and was easy to use;

4, suitably increase single face cutter tooth number, and the thickening cutter hub, make stable cutting;

5, technology level and economic benefit have been improved;

Claims

1, a kind of indexable milling cuttter with double-faced edges is made up of plate-like cutter hub and 4 * H16 blade, it is characterized in that tool cutting edge angle Kr=85 °～89 °, auxiliary angle Kr '=1 °～5 °.

2,, it is characterized in that the axial angle of locating surface and cutter hub equals auxiliary angle in the blade locating slot on the plate-like cutter hub according to the indexable milling cuttter with double-faced edges of claim 1.

3,, it is characterized in that blade adopts wide negative chamfered edge according to the indexable milling cuttter with double-faced edges of claim 1.