CN206373416U - Milling cutter - Google Patents

Abstract

A kind of milling cutter, including a shank, its clamping for being used for milling cutter, cutting portion and at least one cell body.Cutting portion at least includes a Milling Machining portion, and Milling Machining portion includes setting coordinate origin on one section of continuous curve, the profile in Milling Machining portion, and this relative coordinate points set one piece of curve sword to pass through origin and 7 coordinate points simultaneously again at least provided with 7 coordinate points.Milling Machining portion includes leading sword, and it at least includes flat sword portion and arc blade, and one end of arc blade is intersected with the one end in the flat sword portion, and intersection forms obtuse angle blade tip, and the other end of arc blade is located at the end face in Milling Machining portion.The utility model milling cutter, with flat sword portion and the leading sword of arc blade formation combination, and flat sword portion and arc blade intersection form obtuse angle blade tip so that cutter meets the requirement that multidimensional (vertical and horizontal) Milling Machining is carried out to workpiece, improves at least 1 times of processing efficiency.

Description

Milling cutter

Technical field

The utility model is related to a kind of process tool for being applied to industry cutting, more particularly to a kind of milling cutter, is applicable to The cutting of metal, engineering plastics and fibrous composite is processed, with raising processing efficiency.

Background technology

Cutter is to be used for the instrument of machining, also known as cutting element in machine-building.Because most of cutter is Machine, it is substantially all for cutting metal material, so " cutter " one word is typically just interpreted as metal cutting tool.But material Scientific development, various materials have also been able to extensive use in the production and processing of product, such as：Engineering plastics and carbon fiber are multiple Condensation material etc. (CN203401118U).Cutter can be divided into by the form of workpiece machining surface：Process cutter, the hole of various outer surfaces Process tool, threading tool, gear cutting tool and cutting off tool etc. are several.

Component of the Milling Machining in field of machining is becoming more and more important, progressively takes to a certain extent For other processing modes such as car, brills.Due to the extensive diversity of Milling Machining, except metal materials such as traditional steel and cast iron Outside, increasing novel metal/nonmetallic materials are also progressively included into the row of the machined material of Milling Machining, among these not only Various metal alloys including aluminium-containing alloy, the various resin materials also including high-grade engineering plastics, and it is various Carbon fiber metal composite plate including carbon fibre composite.

Workpiece for complex contour is, it is necessary to carry out the Milling Machining of various dimensions, such as：Vertical and horizontal.In practice, in order to full These cutters are changed, have impact on the efficiency of processing by the requirement of foot processing often

Utility model content

The purpose of this utility model is to provide a kind of milling cutter, meets the requirement that multidimensional Milling Machining is carried out to workpiece, improve Processing efficiency.

The milling cutter that the utility model is provided, including a shank, it is used for the clamping of milling cutter, cutting portion and at least one groove Body.Cutting portion at least includes a Milling Machining portion, and the Milling Machining portion includes curve.

The milling cutter that the utility model is provided, in addition to curve sword.Curve sword is fallen within curve, or is connected with curve.

The various milling cutters that the utility model is provided, Milling Machining portion also includes leading sword, (the i.e. cutting portion before curve sword Direction where end face is front).The leading sword at least includes flat sword portion and arc blade, and the length in flat sword portion is such as：4mm~ 32mm.One end of arc blade is intersected with the one end in flat sword portion, and intersection forms obtuse angle blade tip, and the other end of arc blade adds located at milling The end face of the Ministry of worker, the arc blade outwardly convex of prioritizing selection, in outer gibbosity.

The need for processing workpiece, the leading sword for the various milling cutters that the utility model is provided is at least recessed including at least one Portion, the drop of each recess bottom surface and the blade profile is 0.01mm~0.2mm along cutting portion axially or radially.Recess Inclined edge portion is additionally provided with, its inclination angle is 45 ° ± 15 °.

Diamond paster can be used in edge portion surfaces, or uses the matrix containing coating or non-coating, such as：But it is not limited only to Hard alloy, cermet, cubic boron nitride and other powder metallurgy sintered materials etc..

Suitable for cell body of the present utility model, depth everywhere is identical or different, and its depth is cutter body diameter at this 5%~65%, prioritizing selection 25% ± 10%.In variously-shaped cell body, the utility model prioritizing selection have 0 ° ± The helicla flute of 45 ° of helical angles, or the straight trough with 0 ° of ± 45 ° of axial rake.The quantity of cell body should be with blade contained by cutting portion Quantity be adapted, meet cutting edge the need for Milling Machining, such as：But it is not limited only to 1,2,3,4,5,6,7 and 8.When cell body When quantity is more than 1, the helix angle or the angle of axial rake that each groove has are identical or different.The angular aperture angle of cell body 20 ° of formula-[cell body number/360] ° should be met.

For the curve sword of the utility model milling cutter, it is made up of some curved sections, and arbitrary curve section is respectively provided with 2 °~50 ° Relief angle, 2 °~50 ° radial rakes.The relief angles or anterior angle angle that each curved section has are identical or different.

To improve the efficiency of Milling Machining, coordinate origin (0,0) is set on Milling Machining contouring, relative to origin again extremely 7 coordinate points are set less, set one piece of curve sword to pass through origin and 7 coordinate points simultaneously.

A kind of curve sword embodiment for the utility model milling cutter, at least provided with 8 points, one of point falls within milling Process contouring, and as coordinate origin (0,0), relative to origin, the corresponding coordinate of other 7 points be divided into (2.78 ± 0.1, -0.46 ± 0.1), (4.67 ± 0.1, -1.95 ± 0.1), (5.58 ± 0.1, -3.45 ± 0.1), (5.61 ± 0.1, - 5.43 ± 0.1), (5.65 ± 0.1, -7.34 ± 0.1), (6.56 ± 0.1, -9.32 ± 0.1) and (5.68 ± 0.1, -11.22 ± 0.1)。

Thus multiple curve swords section is formed between adjacent coordinates point, origin and coordinate points (2.78 ± 0.1, -0.46 ± 0.1) curved section curvature between is 7.56 ± 0.1, coordinate points (2.78 ± 0.1, -0.46 ± 0.1) and coordinate points (4.67 ± 0.1, -1.95 ± 0.1) between curved section curvature be 4.27 ± 0.1, coordinate points (4.67 ± 0.1, -1.95 ± 0.1) and sit Punctuate (5.58 ± 0.1, -3.45 ± 0.1) between curved section curvature be 4.51 ± 0.1, coordinate points (5.58 ± 0.1, -3.45 ± 0.1) and coordinate points (5.61 ± 0.1, -5.43 ± 0.1) between curved section curvature be 8.31 ± 0.1, coordinate points (5.61 ± 0.1, -5.43 ± 0.1) and coordinate points (5.65 ± 0.1, -7.34 ± 0.1) between curved section curvature be 1317.35 ± 0.1, Coordinate points (5.65 ± 0.1, -7.34 ± 0.1) and coordinate points (6.56 ± 0.1, -9.32 ± 0.1) between curved section curvature be 1317.35 ± 0.1, coordinate points (6.56 ± 0.1, -9.32 ± 0.1) and coordinate points (5.68 ± 0.1, -11.22 ± 0.1) between Curved section curvature is 29782.83 ± 0.1.

The blade of curve shape, chip fractures because of different directions stress, and thin short chip reduces cutter winding, also helps Radiate to improve operating mode during tool sharpening so that cutter can be carried out with higher rotating speed and work speed, so that significantly The service efficiency and service life of cutter are improved, the purpose of design of high-speed and high-efficiency processing has been reached.Therefore, can also be by song More point modes are set on line sword, so that curve sword is decomposed into more shorter and smaller curved sections, to adapt to different cutting materials Material, while the need for mating groove shape and blade quantity so that improve the chip breaking of milling cutter, radiating and it is wear-resisting in terms of property Energy.

The beneficial effect that technical solutions of the utility model are realized：

The milling cutter that the utility model is provided, with the leading sword of the arc blade formation combination of flat sword portion and evagination so that radially Centripetal force is reduced, although while the sensing of axial feed power increase power is closer to shank end, being conducive to increasing rigidity and reducing and cut Vibrations are cut, so as to protect 115 to also improve crudy；Compared with being protected using only the blade of circular arc, although circular arc also changes The distribution of kind radial-axial power, but power is oriented to cutter geometric center, and effect is not as good as the utility model.

The milling cutter that the utility model is provided, also forms obtuse angle blade tip so that cutter is full with flat sword portion and arc blade intersection Foot carries out the requirement of multidimensional (vertical and horizontal) Milling Machining to workpiece, improves at least 1 times of processing efficiency.

The milling cutter that the utility model is provided, the main blade using one section of continuous curve sword composition is suitable for using new The non-standard shapes of material manufacture carry out High-speed machining, and cutter can be made fully to be sent out on the high-speed processing machine tool more than 5000 turns Wave cutting ability.

The effective active length of blade, full curve are not only increased by way of curve sword is decomposed into some curved sections Shape blade also forms continuous point chip to workpiece so that cutter has a maximum cutting force constantly moved forward with being added all the time Work workpiece is contacted, and has obtained being similar to pressure action effect, the material of high tenacity and high rigidity can be cut more easily so that The non-standard shapes processing efficiency of various new materials be substantially improved (exemplified by aluminum alloy materials, its efficiency can improve 300% with On).Simultaneously as the maximum cutting force of processing abrasion is constantly moved afterwards, cutter remains to keep working ability, can remove to cutter Manual maintenance.Because blade of the present utility model is applied with extra the fractureing with volume bits angle different directions in cutting to chip Power, by being controlled length of cut, improves cutter heat dispersion and reduces and twine bits, improve tool sharpening operating mode And add cutting-tool's used life.

By the design to curve tooth shape state, the processing to workpiece is more suitable for, the processing of blade is also reduce further Difficulty, improves processing efficiency.

Meanwhile, similar milling cutter is compared, and can realize the one-shot forming of non-standard shapes processing, is reduced or avoided follow-up Polishing, moreover it is possible to the seismism in processing is remarkably decreased or is avoided, so cause material processing precision carried Height, surface is more smooth.

Brief description of the drawings

Fig. 1 is the structural representation of the embodiment of the utility model milling cutter one；

Fig. 2 is the structural representation of the cutting end surface of milling cutter shown in Fig. 1；

Fig. 3 is the mplifying structure schematic diagram of the blade of milling cutter shown in Fig. 1；

Fig. 4 is the mplifying structure schematic diagram being segmented to the curve sword of milling cutter shown in Fig. 3.

Embodiment

The technical solution of the utility model is described in detail below in conjunction with accompanying drawing.The utility model embodiment is only to illustrate this The technical scheme of utility model and it is unrestricted, although the utility model is described in detail with reference to preferred embodiment, ability Domain it is to be appreciated by one skilled in the art that can be modified to the technical scheme of utility model or equivalent substitution, without de- From the spirit and scope of technical solutions of the utility model, it all should cover in right of the present utility model.

Fig. 1 is the structural representation of the embodiment of the utility model milling cutter one, and Fig. 2 is the cutting end surface of milling cutter shown in Fig. 1 Structural representation, Fig. 3 be the blade of milling cutter shown in Fig. 1 mplifying structure schematic diagram.As shown in Figure 1, Figure 2 with shown in Fig. 3, the milling Cutter has the shank 300 that may be mounted on rotating machinery, cell body 200 and cutting portion 100.Any radial section of cutter body is equal It is corresponding that there is a groove depth including at least one trench bottom.The depth of groove should be understood to carry out any footpath to cutting axle portion To section, and the groove depth at section is relative to the diameter of the cutter body at this.For helicla flute, it is in a spiral manner The continuous cell body of cutter body is arranged at, the depth of each bar helicla flute should be understood to that carrying out any radial direction to cutting axle portion cuts Face, and diameter of the groove depth relative to the cutter body at this at section.In the present embodiment, cell body 200 is straight trough, with groove Angular aperture AQ6,0 ° of ± 45 ° of axial rakes AQ9,2 °~50 ° axial relief angle AQ10, and the cutter body at this diameter 5%- 65% groove depth AQ7.

In the present embodiment, cutting portion 100 includes end face 120, also with 4 Milling Machining portions 110, with 2 °~50 ° radial directions Anterior angle AQ5, and 2 °~50 ° radial clearance angle AQ8, its profile include one section of continuous curve 111 (referring to Fig. 4).Set on curve XY two-dimensional coordinate systems origin (0,0) is put, relative to origin AQQ1 again at least provided with 7 coordinate points AQQ2, AQQ3, AQQ4, AQQ5, AQQ6, AQQ7 and AQQ8 (referring to table 1), set one piece of curve sword 112 to cause simultaneously by origin and 6 coordinate points, Curve sword 112 falls within curve 111 (referring to Fig. 4).

Milling Machining portion 110 includes leading sword, and the leading sword at least includes flat sword portion 113 and arc blade 114, flat sword portion 113 Length such as：4mm~32mm.The arc blade 114 of the present embodiment is in outer gibbosity, and its one end intersects with the one end in flat sword portion 113, Intersection forms obtuse angle blade tip 115, and the other end of arc blade 114 is located at the end face 116 (referring to Fig. 3) in Milling Machining portion.

Table 1

More points are set on curve sword that can also be shown in each above-mentioned embodiment, so as to curve sword is decomposed into more Shorter and smaller curved section, reference can be made to 201420135545.9.

Claims (20)

1. a kind of milling cutter, includes shank, cutting portion and at least one cell body of a clamping for being used for milling cutter, it is characterised in that institute The cutting portion stated at least includes a Milling Machining portion, coordinate origin (0,0) is set on the profile in the Milling Machining portion, relatively In the origin again at least provided with 7 coordinate points, be respectively (2.78 ± 0.1, -0.46 ± 0.1), (4.67 ± 0.1, -1.95 ± 0.1), (5.58 ± 0.1, -3.45 ± 0.1), (5.61 ± 0.1, -5.43 ± 0.1), (5.65 ± 0.1, -7.34 ± 0.1), (6.56 ± 0.1, -9.32 ± 0.1) and (5.68 ± 0.1, -11.22 ± 0.1), one piece of curve sword is set simultaneously by described Origin and 7 coordinate points；

Described Milling Machining portion also includes leading sword, and it is located at before described curve sword；

Described leading sword at least includes flat sword portion and arc blade, one end phase of one end of the arc blade and the flat sword portion Hand over, intersection forms obtuse angle blade tip, the other end of the arc blade is located at the end face in the Milling Machining portion.

2. milling cutter according to claim 1, it is characterised in that the Milling Machining portion also includes curve.

3. milling cutter according to claim 1, it is characterised in that the Milling Machining portion also includes curve, the curve sword is fallen within On described curve.

4. milling cutter according to claim 1, it is characterised in that the length in the flat sword portion is 4mm~32mm.

5. milling cutter according to claim 1, it is characterised in that described leading sword at least includes at least one recess, along institute State cutting portion axially or radially, the drop of the recess bottom surface described in each and the blade profile is 0.01mm~0.2mm.

6. milling cutter according to claim 5, it is characterised in that the recess is provided with inclined edge portion, inclination angle is 45 ° ± 15 °.

7. milling cutter according to claim 1, it is characterised in that the depth of the cell body is cutter body diameter at this 5%-65%.

8. milling cutter according to claim 1, it is characterised in that the depth of the cell body is cutter body diameter at this 25% ± 10%.

9. milling cutter according to claim 1, it is characterised in that described cell body is the helicla flute with 0 ° of ± 45 ° of helical angle Or the straight trough with 0 ° of ± 45 ° of axial rake.

10. milling cutter according to claim 1, it is characterised in that the quantity of the cell body is 1,2,3,4,5,6,7 or 8.

11. milling cutter according to claim 1, it is characterised in that the angular aperture angle of the cell body is 20 °-[cell body number/ 360]°。

12. milling cutter according to claim 1, it is characterised in that described curve sword is made up of some curved sections, any institute The curved section stated is respectively provided with 2 °~50 ° of relief angle, and 2 °~50 ° radial rakes.

13. milling cutter according to claim 1, it is characterised in that described arc blade outwardly convex.

14. milling cutter according to claim 1, it is characterised in that described origin and described coordinate points (2.78 ± 0.1 ,- 0.46 ± 0.1) between curved section curvature be 7.56 ± 0.1.

15. milling cutter according to claim 1, it is characterised in that described coordinate points (2.78 ± 0.1, -0.46 ± 0.1) and Described coordinate points (4.67 ± 0.1, -1.95 ± 0.1) between curved section curvature be 4.27 ± 0.1.

16. milling cutter according to claim 1, it is characterised in that described coordinate points (4.67 ± 0.1, -1.95 ± 0.1) and Described coordinate points (5.58 ± 0.1, -3.45 ± 0.1) between curved section curvature be 4.51 ± 0.1.

17. milling cutter according to claim 1, it is characterised in that described coordinate points (5.58 ± 0.1, -3.45 ± 0.1) and Described coordinate points (5.61 ± 0.1, -5.43 ± 0.1) between curved section curvature be 8.31 ± 0.1.

18. milling cutter according to claim 1, it is characterised in that described coordinate points (5.61 ± 0.1, -5.43 ± 0.1) and Described coordinate points (5.65 ± 0.1, -7.34 ± 0.1) between curved section curvature be 1317.35 ± 0.1.

19. milling cutter according to claim 1, it is characterised in that described coordinate points (5.65 ± 0.1, -7.34 ± 0.1) and Described coordinate points (6.56 ± 0.1, -9.32 ± 0.1) between curved section curvature be 1317.35 ± 0.1.

20. milling cutter according to claim 1, it is characterised in that described coordinate points (6.56 ± 0.1, -9.32 ± 0.1) and Described coordinate points (5.68 ± 0.1, -11.22 ± 0.1) between curved section curvature be 29782.83 ± 0.1.