CN2865952Y

CN2865952Y - Milling cutter

Info

Publication number: CN2865952Y
Application number: CN 200520052955
Authority: CN
Inventors: 卢毓辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-30
Filing date: 2005-12-30
Publication date: 2007-02-07
Anticipated expiration: 2015-12-30

Abstract

The utility model discloses a milling cutter. Bottom of the milling cutter is arranged with complex number of helix chips discharge trough, in order to form one cutting edge respectively between two neighboring chips discharge troughs. The cutting edge includes one cutting edge part, one knife blade back and one knife surface. The cutting edge part is sharp angle edge formed by one trough rim of chips discharge trough on one side. Moreover, complex number of flutes is set in interval on the edge of chips discharge trough. The knife blade back is obtuse angle edge formed on another trough rim on the other side chips discharge trough. The knife surface part is formed at the flank of cutting edge and knife blade back. Therefore, the wavy cutting edge can be applied for producing saw cutting effect in rotary milling cutting. Then, the sumping quality and speed can be increased greatly. Moreover, the service life can be increased as well.

Description

A kind of milling cutter

Technical field:

The utility model relates to a kind of milling cutter, refers to a kind of milling cutter that can significantly promote the depth of cut, feed velocity and can increase service life especially.

Background technology:

General common milling cutter construction, as Fig. 4 and shown in Figure 5, it mainly is to show the spiral chip removal groove 30 in four roads in the lower semisection annular row of milling cutter 3, so that 30 difference of adjacent in twos chip removal groove respectively form a bite sword 31, and wherein a trough rim of this chip removal groove 30 forms the acute angle-shaped blade part 310 of this cutting blade 31, use usefulness for milling, another trough rim of this chip removal groove 30 then forms the obtuse angle shape knife back portion 311 of this cutting blade 31, and the periphery of 311 in this blade part 310 and knife back portion then forms a circular arc knife face portion 312.

See also shown in Figure 5, point out that this known milling cutter construction adds man-hour in milling, because of this blade part 310 is smooth-going helical form, so it is too fast that its milling amount and speed can't reach too greatly, otherwise the iron filings A that the situation that easy generation is burst apart and its are produced when cutting is easy fracture and can being curled in along this smooth-going blade part 310 among this chip removal groove 30 not also, cause these iron filings A that therefore the situation that can't discharge takes place to pile up, in case so then the iron filings A of this high temperature just can make the temperature of this blade part 310 raise fast, and make the situation that therefore this blade part 310 easily bursts apart, and thereby life-span of significantly shorten using, and this iron filings A that is piled up in the chip removal groove 30 also is easy to contact with machined surface and this machined surface is worn, and has influence on the smoothness of machined surface.

The utility model content:

Technical problem to be solved in the utility model is: at the above-mentioned deficiency of prior art, provide a kind of milling cutter that can significantly promote the depth of cut, feed velocity and can increase service life.In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of milling cutter, the hypomere annular row of this milling cutter is shown the spiral chip removal groove of complex trace, respectively form a bite sword between adjacent in twos chip removal groove respectively, this cutting blade comprises a blade part, one knife back portion, an and knife face portion, this blade part is the formed sharp edge of a trough rim of chip removal groove one side, this knife back portion is the formed obtuse angle edge of a trough rim of chip removal groove opposite side, this knife face portion is formed at the side face between this blade part and knife back portion, be characterized in: be interval with plural groove on the trough rim of described chip removal groove, this blade part is wavy.

The chip removal groove of the hypomere annular array of described milling cutter is four roads, and the cutting blade that forms between this four roads chip removal groove is four tools.The secondary knife face of the downward-sloping in regular turn angle of described knife face portion's tool plural number is so that the junction of each secondary knife face forms the auxiliary-blade of tip shape.The secondary knife face that described knife face portion has is three roads, and forms two road auxiliary-blades between the secondary knife face in this three road.Described secondary knife face near knife back portion is made up of plural inclined-plane.Described auxiliary-blade is wavy.

Compared with prior art, advantage of the present utility model: can make this milling cutter when the rotation milling, machined surface be produced the effect of a sawing by this wavy blade part, so that the iron filings that produced form the segment shape and can not be piled up in the chip removal groove, therefore just can significantly promote the depth of cut and the speed of milling cutter, and more can reduce the situation that cutting blade bursts apart, so that it can increase substantially service life.

Description of drawings:

Fig. 1 is a stereogram of the present utility model.

Fig. 2 is a milling action schematic diagram of the present utility model.

Fig. 3 is the expansion schematic diagram of cutting blade of the present utility model.

Fig. 4 is the stereogram of known milling cutter.

Fig. 5 is the milling action schematic diagram of milling cutter shown in Figure 4.

Label declaration:

1 milling cutter, 10 chip removal grooves

20 cutting blades, 21 blade parts

210 grooves, 22 knife back portions

23 knife face portions, 230 first secondary knife faces

231 second secondary knife face 232 the 3rd secondary knife faces

233 first auxiliary-blades, 234 second auxiliary-blades

3 milling cutters, 30 chip removal grooves

31 bites, 310 blade parts

312 knife face portions of 311 knife back portions

The A iron filings

The specific embodiment:

See also Fig. 1-shown in Figure 3, it mainly is to show the spiral chip removal groove 10 in four roads in the lower semisection annular row of this milling cutter 1, so that 10 difference of adjacent in twos chip removal groove respectively form a bite sword 20, wherein each cutting blade 20 comprises:

One blade part 21 is the formed sharp edge of a trough rim of chip removal groove 10 1 sides, and on the trough rim of this chip removal groove 10 and be interval with plural groove 210, so that this blade part 21 forms wavy;

One knife back portion 22 is the formed obtuse angle edge of trough rim of chip removal groove 10 opposite sides; And

One knife face portion 23, be formed between this blade part 21 and the knife back portion 22, and the one first secondary knife face 230 that in this knife face portion 23, has a downward-sloping in regular turn angle, one second secondary knife face 231 and one the 3rd secondary knife face 232, form first auxiliary-blade 233 of a tip shape in the junction of this first secondary knife face 230 and the second secondary knife face 231, and form second auxiliary-blade 234 of a tip shape in the junction of this second secondary knife face 231 and the 3rd secondary knife face 232, and first auxiliary-blade 233 and second auxiliary-blade 234 be wavy, the 3rd secondary knife face 232 is made up of plural inclined-plane in addition.

See also shown in Figure 2, point out when the 1 rotation milling of this milling cutter, because of the blade part 21 of this cutting blade 20 is wavy, therefore just can produce the effect of sawing to machined surface, and make the iron filings A that is cut all be the segment shape, especially the iron filings A of this segment shape can be cut to more fritter by this first auxiliary-blade 233 and second auxiliary-blade 234 especially once more when discharging, and make its can be easily by discharging in this chip removal groove 10, and and do not have the situation of accumulation, so this blade part 21 is difficult for bursting apart because of long-pending heat, so can increase substantially its service life, and this wavy blade part 21 also can not concentrate because of cutting stress, and the degree of depth of its cutting and speed can significantly be increased and do not have the situation that blade part 21 bursts apart.

In sum, when usability and the progressive known on the industry of the utlity model has, and in like product, there is no similar products like or deliver and have novelty, so met the application important document of novel patent.

Claims

1, a kind of milling cutter, the hypomere annular row of this milling cutter is shown the spiral chip removal groove of complex trace, respectively form a bite sword between adjacent in twos chip removal groove respectively, this cutting blade comprises a blade part, one knife back portion, an and knife face portion, this blade part is the formed sharp edge of a trough rim of chip removal groove one side, this knife back portion is the formed obtuse angle edge of a trough rim of chip removal groove opposite side, this knife face portion is formed at the side face between this blade part and knife back portion, it is characterized in that: be interval with plural groove on the trough rim of described chip removal groove, this blade part is wavy.

2, a kind of milling cutter according to claim 1 is characterized in that: the chip removal groove of the hypomere annular array of described milling cutter is four roads, and the cutting blade that forms between this four roads chip removal groove is four tools.

3, a kind of milling cutter according to claim 1 is characterized in that: the secondary knife face of the downward-sloping in regular turn angle of described knife face portion's tool plural number, so that the junction of each secondary knife face forms the auxiliary-blade of tip shape.

4, a kind of milling cutter according to claim 3, it is characterized in that: described auxiliary-blade is wavy.

5, a kind of milling cutter according to claim 3 is characterized in that: the secondary knife face that described knife face portion has is three roads, and forms two road auxiliary-blades between the secondary knife face in this three road.

6, a kind of milling cutter according to claim 3 is characterized in that: described secondary knife face near knife back portion is made up of plural inclined-plane.