CN2810833Y

CN2810833Y - Milling cutter

Info

Publication number: CN2810833Y
Application number: CN 200520106178
Authority: CN
Inventors: 陈二林
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-22
Filing date: 2005-08-22
Publication date: 2006-08-30
Anticipated expiration: 2015-08-22

Abstract

The utility model discloses the improvement of a spiral angle of a milling cutter. The spiral angle is provided with at least two kinds of inclined angles, and the spiral angle on the bottom end of the milling cutter is more inclined than the spiral angle on the top end of the milling cutter. Therefore, the efficacies of tough structure and convenient chip removal can be achieved.

Description

Milling cutter

Technical field

It is relevant that the utility model and a kind of milling cutter ' s helix angle degree improve, particularly tough and make things convenient for the milling cutter ' s helix angle degree of chip removal relevant with a kind of structure that reaches.

Background technology

Milling cutter is a kind of similar drill bit, is used for the instrument of the face that scabbles, and the spiral chase of inclination is arranged on it, can help chip removal when milling cutter scabbles face.Because milling cutter can apply to the plane of various unlike material different hardness, as metal, timber etc., so the angle of inclination of its spiral chase also can be different; In general, the material of desiring to mill is harder, and then the angle of inclination of milling cutter spiral chase then needs bigger.See also Fig. 1 a and Fig. 1 b, be respectively known milling cutter schematic appearance and spiral angle schematic diagram, as shown in the figure: the spiral chase 11 of inclination is arranged on this milling cutter 1, and the angle of inclination a of its spiral chase 11 ° is approximately about 45 °, because its angle of inclination is less, so for making things convenient for the design of chip removal; So, also, cause milling cutter 1 bottom 12 areas less,, the situation that the bottom crumbles takes place easily if when being used to mill the harder plane of material because its angle of inclination is less, and impracticable.

See also Fig. 2 a and Fig. 2 b, be respectively another known milling cutter schematic appearance and spiral angle schematic diagram, as shown in the figure: the spiral chase 21 that inclination is arranged on this milling cutter 2, the angle of inclination b of its spiral chase 21 ° is approximately about 60 °, because its angle of inclination is bigger, bottom 22 areas are also relatively large, therefore are difficult for crumbling, so be the design of the hard material of millable; So, also because its angle of inclination is bigger, spiral chase 21 spiral up is more straight relatively, the situation that easily causes chip removal to have some setbacks; Though it is applicable to harder material, its chip removal has some setbacks, and also embarrassed title is practical.

Because the shortcoming of known milling cutter, it is not perfect to attaining for inventor's thoughts, exhausts intelligence then, concentrated research overcomes, accumulate with being engaged in this industry experience for many years, and then develop a kind of milling cutter ' s helix angle degree improvement, can reach the effect that structure is tough and make things convenient for chip removal.

Summary of the invention

Main purpose of the present utility model is to provide a kind of milling cutter, can reach the effect that structure is tough and make things convenient for chip removal.

For reaching above-mentioned purpose, realization technology of the present utility model is as follows:

A kind of milling cutter, wherein, this spiral angle has at least two kinds angle of inclination, and the spiral angle of this milling cutter bottom comparatively tilts than the spiral angle on milling cutter top; Thus, can reach the effect that structure is tough and make things convenient for chip removal.

Description of drawings

Fig. 1 a: be the schematic appearance of known milling cutter.

Fig. 1 b: be the spiral angle schematic diagram of known milling cutter.

Fig. 2 a: be the schematic appearance of another known milling cutter.

Fig. 2 b: be the spiral angle schematic diagram of another known milling cutter.

Fig. 3 a: be schematic appearance of the present utility model.

Fig. 3 b: be spiral angle schematic diagram of the present utility model.

Fig. 4 a: be another schematic appearance of the present utility model.

Fig. 4 b: be another spiral angle schematic diagram of the present utility model.

Drawing reference numeral:

1......... milling cutter 11...... spiral chase

12........ bottom 2......... milling cutter

21...... spiral chase 22........ bottom

3......... milling cutter 31.... first spiral angle

32.... second spiral angle 33........ bottom

4......... milling cutter 41.... first spiral angle

42.... second spiral angle 43........ bottom

A ° ... angle of inclination b ° .... the angle of inclination

C ° ... angle of inclination C ' ° ... the angle of inclination

D ° ... angle of inclination D ' ° ... the angle of inclination

The specific embodiment

See also Fig. 3 a and Fig. 3 b, be respectively schematic appearance of the present utility model and spiral angle schematic diagram, as shown in the figure: milling cutter 3 of the present utility model, its side is provided with first spiral angle 31 and second spiral angle 32, its first spiral angle 31 is located at the bottom of milling cutter 3, and second spiral angle 32 is located at the top of first spiral angle 31, and the angle of inclination D of first spiral angle 31 ° of greater than second spiral angle 32 angle of inclination C °.The angle of inclination D of first spiral angle 31 ° is approximately about 60 degree, be the design of tilting, so milling cutter 3 bottoms 33 areas is also relatively large, and structure is tough, therefore is difficult for crumbling, so be the design of the hard material of millable; And the angle of inclination C of second spiral angle 32 ° be about about 45 degree, and its angle of inclination is less, so be to make things convenient for the design of chip removal.When milling cutter 3 when using, because first spiral angle 31 comparatively tilts, so applicable to the harder plane of material, and come chip removal by the second less spiral angle 32 of angle of inclination, very smooth and easy, improved the shortcoming of known milling cutter, reach the effect that structure is tough and make things convenient for chip removal.

See also Fig. 4 a and Fig. 4 b, be respectively another schematic appearance of the present utility model and another spiral angle schematic diagram, as shown in the figure: milling cutter 4 of the present utility model, its side is provided with first spiral angle 41 and second spiral angle 42, its first spiral angle 41 is located at the bottom of milling cutter 4, and second spiral angle 42 is located at the top of first spiral angle 41, and the angle of inclination D ' of first spiral angle 41 ° of greater than second spiral angle 42 angle of inclination C ' °.The angle D ' of first spiral angle 41 ° is approximately about 70 degree, be the design of tilting, so milling cutter 4 bottoms 43 areas is also relatively large, and structure is tough, therefore is difficult for crumbling, so for washing the design of hard material; And the angle of inclination C ' of second spiral angle 42 ° be about about 60 degree, and its angle of inclination is less, so be to make things convenient for the design of chip removal.When milling cutter 4 when using, because first spiral angle 41 comparatively tilts, so applicable to the harder plane of material, and come chip removal by the second less spiral angle 42 of angle of inclination, very smooth and easy, improved the shortcoming of known milling cutter, reach the effect that structure is tough and make things convenient for chip removal.

Though the utility model discloses with specific embodiment; but it is not in order to limit the utility model; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present utility model and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that the utility model scope of patent protection is done.

Claims

1. milling cutter, it is characterized in that: this milling cutter ' s helix angle degree has at least two kinds of angles of inclination, and the spiral angle of this milling cutter bottom comparatively tilts than the spiral angle on milling cutter top.