CN205020917U - Multiple -cutting -edge profile milling cutter - Google Patents

Abstract

The utility model discloses a multi-blade forming milling cutter, which comprises a cutter body. The rear end of the cutter body is provided with a handle, and the front end of the cutter body is provided with two spirally formed curved surface blades, that is, the first spirally formed curved surface blade and the first spirally formed curved surface blade. The second spiral forming curved surface blade, the helix angle of the first spiral forming curved surface blade and the helix angle of the second spiral forming curved surface blade are both 30 ° and a first milling plane is provided between them, the second spiral forming The rear end of the curved surface blade is also provided with a second milling plane, the first helically formed curved surface blade is provided with a first end edge relief angle and a second end edge relief angle, and the second spirally formed curved surface blade is provided with a third The rake angle of the end edge, the second helically formed curved surface blade is also provided with an axial relief angle and a radial relief angle. Through the above method, the cutter tooth part of the utility model includes spiral forming curved surface, chamfering and milling plane, which can improve the production efficiency of processing workpieces with complex curved surface shapes during processing.

Description

Multi-edge form milling cutter

technical field

The utility model relates to the field of milling cutters, in particular to a multi-blade forming milling cutter.

Background technique

At present, for the cost-effective machining of some complex curved surfaces and multiple shapes, a variety of cutting tools are generally used for compound machining. This method not only increases the cost of purchase and the time for changing tools, but also affects production efficiency and production costs. The processing accuracy of the workpiece, so the method of solving the tool for processing complex curved surfaces is not ideal. Existing curved surface workpiece processing generally uses a cut-off cutter and a forming milling cutter for copy milling, and the combined processing of two cutters can meet the requirements of the workpiece, which wastes processing cost and processing time, and reduces the processing accuracy.

Utility model content

The technical problem mainly solved by the utility model is to provide a multi-blade forming milling cutter, which can improve the production efficiency of machining workpieces with complex curved surfaces and greatly reduce the production cost of the cutter.

In order to solve the above-mentioned technical problems, a technical solution adopted by the utility model is to provide a multi-blade forming milling cutter, including a cutter body, a handle is provided at the rear end of the cutter body, and two helical parts are provided at the front end of the cutter body. Formed curved surface blades, that is, the first spirally formed curved surface blade and the second spirally formed curved surface blade, the helix angle of the first spirally formed curved surface blade and the helix angle of the second spirally formed curved surface blade are both 30°, the second spirally formed curved surface blade A first milling plane is provided between a spiral forming curved surface blade and the second spiral forming curved surface blade, and a second milling plane is provided at the rear end of the second spiral forming curved surface blade. A first end edge relief angle and a second end edge relief angle are provided, a third end edge rake angle is provided on the second spirally formed curved surface blade, and an axial relief angle is also provided on the second spirally formed curved surface blade and radial relief angles.

In a preferred embodiment of the present utility model, the first spirally formed curved surface blade is arranged at the front end of the second spirally formed curved surface blade.

In a preferred embodiment of the present invention, the relief angle of the first end edge on the first spirally formed curved surface blade is 10°, and the second end edge on the first spirally formed curved surface blade The relief angle is 25°.

In a preferred embodiment of the present invention, the rake angle of the third end edge on the second helically formed curved edge is 13°.

In a preferred embodiment of the present utility model, the axial relief angle set on the second spirally formed curved surface blade is 0°, and the second spirally formed curved surface blade is also provided with radial relief angles of 12° and 30°. rear corner.

In a preferred embodiment of the utility model, the first spiral forming curved surface is two knife teeth.

In a preferred embodiment of the utility model, the second spiral forming curved surface is three knife teeth.

In a preferred embodiment of the present invention, the length of the cutter body is 50mm, and the diameter of the cutter body is 6mm.

The beneficial effects of the utility model are: the cutter tooth part of the utility model includes spirally formed curved surfaces, chamfers and milling planes, which can improve the production efficiency of workpieces with complex curved surface shapes during processing, and reduce the production cost of the cutter to a large extent. So it provides a new way of thinking for processing workpieces with complex shapes.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work, wherein:

Fig. 1 is the structural representation of a preferred embodiment of the utility model multi-blade forming milling cutter;

Fig. 2 is a schematic view showing the structure of a preferred embodiment of the first spiral-shaped curved surface blade;

Fig. 3 is a schematic view showing the structure of a preferred embodiment of the second spiral-shaped curved surface blade;

The marks of each part in the accompanying drawings are as follows: 1. Cutter body; 2. Knife handle; 3. Spiral forming curved surface blade; 301. The first spirally formed curved surface blade; 302. The second spirally formed curved surface blade; 4. The first milling plane ;5, the second milling plane; a, the first end edge relief angle; b, the second end edge relief angle; c, the third end edge rake angle.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1, Fig. 2 and Fig. 3, the utility model embodiment comprises:

A multi-blade forming milling cutter, comprising a cutter body 1, a handle 2 is provided at the rear end of the cutter body 1, and two spirally formed curved surface blades 3 are provided at the front end of the cutter body 1, that is, the first spirally formed curved surface blade 301 And the second spiral forming curved surface blade 302, the helix angle of the first spiral forming curved surface blade 301 and the helix angle of the second spiral forming curved surface blade 302 are 30 °, the first spiral forming curved surface blade 301 and the A first milling plane 4 is provided between the second spiral forming curved surface blades 302, a second milling plane 5 is also provided at the rear end of the second spiral forming curved surface blade 302, and a second milling plane 5 is provided on the first spiral forming curved surface blade 301. The first end edge relief angle a and the second end edge relief angle b, the second spiral forming curved surface blade 302 is provided with a third end edge rake angle c, and the second spiral forming curved surface blade 302 is also provided with a shaft Backward and radial relief.

In addition, the first helical curved blade 301 is disposed at the front end of the second helical curved blade 302 .

In addition, the angle a of the first end edge relief angle on the first spiral forming curved surface blade 301 is 10°, and the angle b of the second end edge relief angle on the first spiral forming curved surface blade 302 is 25°. °.

In addition, the rake angle c of the third end edge on the second helical curved surface blade 302 is 13°.

In addition, the axial clearance angle set on the second spiral forming curved surface blade 302 is 0°, and the second spiral forming curved surface cutting edge 302 is also provided with radial relief angles of 12° and 30°.

In addition, the first spiral forming curved surface 301 is two knife teeth.

In addition, the second spiral forming curved surface 302 has three knife teeth.

In addition, the length of the cutter body 1 is 50mm, and the diameter of the cutter body 1 is 6mm.

The design principle of the present utility model is that a knife handle 2 is arranged at the rear end of the knife body 1, the length of the knife body 1 is 50 mm, the diameter of the knife body 1 is 6 mm, and the front end of the knife body 1 is provided with two parts of spirally formed curved surface blades 3, that is, the first spiral The forming curved surface blade 301 and the second spiral forming curved surface blade 302, the first spiral forming curved surface blade 301 is located at the front end of the second spiral forming curved surface blade 302, the first spiral forming curved surface 301 is two knife teeth, and the second spiral forming curved surface 302 is Three cutter teeth, the helix angle of the first helical forming curved surface blade 301 and the helix angle of the second helical forming curved surface blade 302 are 30°, between the first helical forming curved surface blade 301 and the second helical forming curved surface blade 302 The first milling plane 4, the rear end of the second helically formed curved surface blade 302 is also provided with a second milling plane 5, the first helically formed curved surface blade 301 is provided with a first end edge relief angle a and a second end edge relief angle b, The first end edge relief angle a on the first spiral forming curved surface blade 301 is 10°, the second end edge relief angle b on the first spiral forming curved surface blade 302 is 25°, and on the second spiral forming curved surface blade 302 There is a third end edge rake angle c, and the angle c of the third end edge rake angle on the second spirally formed curved surface blade 302 is 13°. The second spirally formed curved surface blade 302 is also provided with an axial relief angle and a radial relief angle. Angle, the axial relief angle set on the second spiral forming curved surface blade 302 is 0°, and the second spiral forming curved surface blade 302 is also provided with radial relief angles of 12° and 30°. The curved surface blade, the first helically formed curved surface blade 301 and the second helically formed curved surface blade 302, also includes two parts of the milling plane, the first milling plane 4 and the second milling plane 5, which can be processed at one time without using two knives Combination processing can improve the production efficiency of workpieces with complex curved surface shapes during workpiece processing.

The above descriptions are only examples of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the utility model description, or directly or indirectly used in other related technologies fields, are all included in the scope of patent protection of the utility model in the same way.

Claims (8)

1. a multiple-cutting-edge profile milling cutter, comprise cutter hub, it is characterized in that, described cutter hub rear end is provided with handle of a knife, described cutter hub front end is provided with two parts spiral forming curved surface blade, i.e. the first spiral forming curved surface blade and the second spiral forming curved surface blade, the helical angle of described first spiral forming curved surface blade and the helical angle of described second spiral forming curved surface blade are 30 °, the first milling flat is provided with between described first spiral forming curved surface blade and described second spiral forming curved surface blade, described second spiral forming curved surface blade rear end is also provided with the second milling flat, described first spiral forming curved surface blade is provided with first end edge clearance angle and the second end clearance angle, described second spiral forming curved surface blade is provided with the 3rd end angle of cutting edge, described second spiral forming curved surface blade is also provided with axial relief angle and radial clearance angle.

2. multiple-cutting-edge profile milling cutter according to claim 1, is characterized in that, described first spiral forming curved surface blade is located at described second spiral forming curved surface knife-edge leading end.

3. multiple-cutting-edge profile milling cutter according to claim 1, is characterized in that, the described first end edge clearance angle angle on described first spiral forming curved surface blade is 10 °, and the described second end clearance angle angle on described first spiral forming curved surface blade is 25 °.

4. multiple-cutting-edge profile milling cutter according to claim 1, is characterized in that, the described 3rd end angle of cutting edge angle on described second spiral forming curved surface blade is 13 °.

5. multiple-cutting-edge profile milling cutter according to claim 1, is characterized in that, the axial relief angle that described second spiral forming curved surface blade is arranged is 0 °, described second spiral forming curved surface blade is also provided with the radial clearance angle of 12 ° and 30 °.

6. multiple-cutting-edge profile milling cutter according to claim 1, is characterized in that, described first spiral forming curved surface is two cutters tooth.

7. multiple-cutting-edge profile milling cutter according to claim 1, is characterized in that, described second spiral forming curved surface is three cutters tooth.

8. multiple-cutting-edge profile milling cutter according to claim 1, is characterized in that, described cutter hub length is 50mm, and described cutter hub diameter is 6mm.