CN206869203U - A kind of profile milling cutter - Google Patents

Abstract

Embodiment of the present utility model discloses a kind of profile milling cutter, is related to machine tool manufacturing field, has the characteristics of manufacturing process is simple, easy to process.The profile milling cutter, including：Cutting tip including cutter hub and the cutting edge being arranged on the cutting tip, the blade type of the cutting edge are formed by the blade of at least two blades in axially overlap joint.The utility model is suitable for machine tool manufacture and the processing and manufacturing of workpiece, the processing especially suitable for the workpiece of processed complex profile, such as turbine disk fir-shaped blade root and blade.

Description

A kind of profile milling cutter

Technical field

A kind of machine tool is the utility model is related to, more particularly, to a kind of profile milling cutter.

Background technology

Profile milling cutter is a kind of dedicated tool designed according to the workpiece of contoured.At present, in turbine disk fir type tenon In the processing of groove and blade root, roughing, semifinishing, finishing mainly are carried out using overall high-speed steel profile milling cutter, should The accuracy of manufacture of class molding cutter plays decisive role to workpieces processing shape, precision and surface roughness.Due to processing During the complex-shaped workpiece of contour line, correspondingly, the cutting edge molded line of such cutter of use is complex-shaped, plus to such knife The required precision of tool is high, for example profile error typically requires to be less than ± 0.02, and some areas require to be less than ± 0.005.Therefore, Such existing profile milling cutter manufacturing process is complicated, and difficulty of processing is big.

Utility model content

In view of this, the utility model embodiment provides a kind of profile milling cutter, simple with manufacturing process, easy to process Feature.

To reach above-mentioned purpose, embodiment of the present utility model adopts the following technical scheme that：

A kind of profile milling cutter, including the cutting tip of cutter hub and the cutting edge that is arranged on the cutting tip, it is described to cut The blade type for cutting sword is formed by the blade of at least two blades in axially overlap joint；

The projection that each blade is located at cutter hub axle section in axial lap-joint overlaps.

Alternatively, the cutter hub is revolving body, and at least one cutting edge is provided with the circumference of the cutting tip.

Alternatively, each cutting edge is consistent with the contour line of workpiece to be processed in the projection of cutter hub axle section.

Alternatively, locus of each blade on cutter hub is spiral lifting successively vertically, and circumferential equal It is even to stagger.

Alternatively, the cutting tip is provided with least one at least provided with the first cutting portion on first cutting portion Individual first carries knife platform, and at least one second carries knife platform and at least one 3rd load knife platform, carries described first and is provided with extremely on knife platform Few first blade, at least one second blade is provided with each described second load knife platform, knife is carried the described 3rd It is provided with least one 3rd blade on platform, first blade, the second blade and the 3rd blade are along the axial direction successively ladder Formula spiral lifting, the blade type of first blade, the second blade and the 3rd blade overlap to form the first cutting edge；

The first chip pocket is additionally provided with the first cutting portion, each position for carrying knife platform, the first chip pocket is with the first cutting edge Along the axial direction successively staged spiral lifting；

Alternatively, second blade has part cutting edge to be cutd open in the axle close to first blade in axial lap-joint Projection on face is overlapping, has part cutting in axial lap-joint between the second blade on the second load knife platform adjacent two-by-two Projection of the sword on the axle section is overlapping, and the 3rd blade has part cutting close to second blade in axial lap-joint Projection of the sword on the axle section is overlapping.

Alternatively, the lift angle of the staged spiral lifting is 5 °~45 °.

Alternatively, the first load knife platform on first cutting portion, the second load knife platform and the 3rd load knife platform are provided with blade Groove, screwed hole is provided with the insert groove, first blade, the second blade and the 3rd blade are provided with counter sink, described First blade, the second blade and the 3rd blade are inserted in the insert groove, and the counter sink is aligned with the screwed hole, passes through spiral shell Nail links together.

Alternatively, the first blade blade type is mainly sequentially connected and formed by dome segmental arc, straightway and concave arc section；

The second blade blade type is mainly by the first concave arc section, first straight line section, the second dome segmental arc, second straight line section And second concave arc section be sequentially connected composition；

The 3rd blade blade type is mainly sequentially connected by concave arc section and straightway to be formed.

Alternatively, the material of each blade includes：Polycrystalline diamond, cubic boron nitride or ceramics.

Alternatively, the cutting tip is circumferentially at least additionally provided with the second cutting with the angle of the first cutting portion interval one Portion, at least one described first is provided with second cutting portion and carries knife platform, at least one described second carries knife platform and extremely Few one the described 3rd carries knife platform, and at least one first blade is provided with the described first load knife platform, it is described each second Carry and be provided with least one second blade on knife platform, at least one 3rd blade is provided with the described 3rd load knife platform, it is described First blade, the second blade and the 3rd blade are set on second cutting portion along the axial direction successively staged spiral lifting The first blade, the blade type of the second blade and the 3rd blade overlaps to form the second cutting edge；

The second chip pocket is additionally provided with the second cutting portion, each position for carrying knife platform, the second chip pocket is with the second cutting edge Along the axial direction successively staged spiral lifting；

The cutting tip is circumferentially at least additionally provided with the 3rd cutting for adjoining and being spaced an angle with second cutting portion Portion, at least one described first is provided with the 3rd cutting portion and carries knife platform, at least one described second carries knife platform and extremely Few one the described 3rd carries knife platform, and at least one first blade is provided with the described first load knife platform, it is described each second Carry and be provided with least one second blade on knife platform, at least one 3rd blade is provided with the described 3rd load knife platform, it is described First blade, the second blade and the 3rd blade are set on the 3rd cutting portion along the axial direction successively staged spiral lifting The first blade, the blade type of the second blade and the 3rd blade overlaps to form the 3rd cutting edge；

The 3rd chip pocket is additionally provided with the 3rd cutting portion, each position for carrying knife platform, the 3rd chip pocket is with the 3rd cutting edge Along the axial direction successively staged spiral lifting.

Second aspect, a kind of profile milling cutter manufacture method of the utility model embodiment, for processing milling described in first aspect Knife, including step：

Process the blade of predetermined blade type；

Process the cutter hub of predetermined profile；

The blade is installed on the cutter hub and overlaps out at least one cutting edge consistent with parts to be processed profile.

Alternatively, the blade of the predetermined blade type of processing also includes：

Foundation parts to be processed profile diagram, determine the cutting blade type of milling cutter；

It is some blade type sections according to the cutting blade type classifying rationally of the milling cutter；

The blade for processing corresponding blade type is set according to the blade type section.

Alternatively, the blade that corresponding blade type is processed according to the blade type section includes：

The material of blade cut sword is selected according to the material of workpiece to be processed；

The blade is processed using the electric discharge of numerical control line electrode or picosecond laser, ensures the blade molded line contour accuracy For ± 0.005-0.01mm.

Alternatively, methods described also includes step：

Foundation part working position profile diagram, design the general structure shape and size of cutter；

It is determined that the position of each blade specific spatial coordinate location, shape, size and screw hole on cutter；

It is modeled using three-dimensional graphics software, projection of the cutting edge for ensureing to be formed after each blade overlap joint on axle section It is completely the same with parts to be processed working position profile；

Check whether cutter overall structure and blade structure design are reasonable using simulation software.

Alternatively, it is described to determine each blade specific spatial coordinate location, shape, size and screw hole on cutter Position includes：

The structure of blade is determined according to the size of blade.

Alternatively, the cutter hub of the processing predetermined profile includes：

Blanking：The material is nitrided steel 38CrMoALA；

Numerical control lathe is thick, smart car each several part profile, and shank is cylindrical unilateral to stay She 0.5mm to measure；

Drilling tail portion screw, head center hole；

Heat treatment：Blade 30-35HRC, shank 40-45HRC；

Sandblasting；

Peripheral milling：Mill shank is cylindrical unilateral to stay 0.05mm；

Machining center：Rough mill chip pocket；

Machining center：Finish-milling chip pocket, insert groove and brill thread Pilot hole；

Pincers worker：Tapping deburring；

Nitriding；

Peripheral milling：It is cylindrical to grind shank；

Turn blue.

Alternatively, the numerical control lathe is thick, smart car each several part profile, and shank is cylindrical unilateral to stay She's 0.5mm amount to include：

Slightly, smart car cuts out cutter hub profile corresponding with parts to be processed profile；

Milled out on the cutting tip profile of corresponding cutter hub axially successively spiral lifting, it is circumferential uniformly stagger it is each Carry knife platform.

A kind of profile milling cutter of the utility model embodiment, the blade type of the cutting edge is by the blade of at least two blades in knife Axially overlap joint is formed body, it is only necessary to according to parts to be processed profile design and the blade of corresponding blade type is processed, by by described in The blade of multiple corresponding blade type combines overlap joint on cutter hub can form required complicated cutting edge molded line, have manufacture work The characteristics of skill is simple, easy to process.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the dimensional structure diagram of embodiment profile milling cutter of the present utility model；

Fig. 2 is Fig. 1 front view；

Fig. 3 is Fig. 1 right view；

Fig. 4 is Fig. 1 top view；

Fig. 5 is projection view of the cutting edge on cutter hub axle section described in Fig. 1；

Fig. 6 is that first, second or third cutting portion described in the utility model embodiment overlaps formation on cutter hub axle section Cutting-edge projection's view.

Fig. 7 is the structural front view of the first blade of the utility model embodiment 7；

Fig. 8 is the structural front view of the second blade of the utility model embodiment 8；

Fig. 9 is the structural front view of the blade 9 of the utility model embodiment the 3rd；

Figure 10 is Fig. 1 left view；

Figure 11 is a kind of profile milling cutter manufacture method schematic flow sheet of the utility model embodiment.

Embodiment

A kind of profile milling cutter of the utility model embodiment is described in detail below in conjunction with the accompanying drawings.

It will be appreciated that described embodiment is only the utility model part of the embodiment, rather than whole implementation Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made The all other embodiment obtained, belong to the scope of the utility model protection.

Referring to shown in Fig. 1, a kind of profile milling cutter of the utility model embodiment, including：Cutter hub 01, the one of the cutter hub End is provided with handle of a knife 1, navigates to machining tool for installing, cutting tip 2 is provided with the other end of the cutter hub, for cutting Turning work piece, the cutting edge with respective profile blade type can be set according to the profile of actual processing part on the cutting tip 2, The blade type of the cutting edge is formed by the blade of at least two blades in axially overlap joint.In the present embodiment, cutting edge is by different knives Piece is formed by overlapping combination, and Optimized Tool and quantity are ensureing processing request depending on specific parts to be processed contour shape On the premise of, the Optimized Tool of selection is as far as possible few, it is preferable that the present embodiment selects 3 kinds.The milling cutter is various multiple available for cutting The workpiece of miscellaneous profile, in the processing and manufacturing especially suitable for turbine disk fir-shaped blade root and blade.

A kind of profile milling cutter of the utility model embodiment, cutting tip is provided with the cutter hub, by the cutting portion By the blade of at least two blades, in cutter hub, axially overlap joint is formed the blade type of the cutting edge divided, it is only necessary to according to parts to be processed wheel Exterior feature designs and processes the blade of corresponding blade type, by the way that the blade of the multiple corresponding blade type is combined into overlap joint on cutter hub Complicated cutting edge molded line required for being formed, solves that manufacture difficulty that profile milling cutter blade type cable architecture complicated band is come is big to ask Topic, therefore, the utility model profile milling cutter has the characteristics of manufacturing process is simple, easy to process.

Preferably, projection of each cutting edge on cutter hub axle section is consistent with the contour line of workpiece to be processed. In the present embodiment, the cutter hub 01 can be fabricated to different shapes according to the features such as profile of actual processing part；Referring to Fig. 1 institutes Show, the cutting edge can be needed axially arranged one or more in the circumference of the cutting tip 2 of cutter hub 01 according to actual processing Bar cutting edge, it is preferable that the cutter hub 01 is revolving body, is provided with described at least one and cuts in the circumference of the cutting tip 2 Cut sword；In order to improve the process velocity in machining, several cutting edges can also be set up within 2 weeks in the cutting tip.

In the present embodiment, the blade type of the cutting edge according to actual processing parts profile due to setting, therefore, cutting edge Blade type can be set to different blade type according to the profile difference of processing part, but the general principle that the blade type of cutting edge is formed is not Become, be to overlap to form in the axial direction of cutter hub by the blade of at least two blades；Referring to shown in Fig. 5, it is preferable that described every Projection of the blade type of one cutting edge on cutter hub gyroaxis section is consistent with part to be processed contour line；The purpose so set It is, in process, cutting load is undertaken respectively successively by each cutting edge, and the cutting force of single cutting edge reduces, cutting Process is more steady.

Referring to shown in Fig. 1 and Fig. 5, in the present embodiment, it is preferable that locus of each blade on cutter hub is edge Axially spiral lifting successively, and uniformly stagger circumferentially.The big I of lead angle needs to set according to work pieces process, the present embodiment This is not construed as limiting.

Referring to shown in Fig. 1 and Fig. 2, it is preferable that the cutting tip is cut at least provided with the first cutting portion 3 described first Cut and at least one first load knife platform 4, at least one second load knife platform 5 and at least one 3rd load knife platform 6 are provided with portion 3, please Referring again to shown in Fig. 1 or Fig. 4, at least one first blade 7 is provided with the described first load knife platform 4, it is described each second Carry and be provided with least one second blade 8 on knife platform 5, at least one 3rd blade 9 is provided with the described 3rd load knife platform 6, First blade 7, the second blade 8 and the 3rd blade 9 are along the axial direction successively staged spiral lifting, first blade 7th, the blade type of the second blade 8 and the 3rd blade 9 overlaps to form the first cutting edge；On the first cutting portion 3, each position for carrying knife platform On be additionally provided with chip pocket, each chip pocket is with the first cutting edge along the axial direction successively staged spiral lifting.In the present embodiment, institute Each knife-blade is stated in cutter hub axial step spiral lifting, circumferential uniform stagger setting, overlaps out an effective cutting edge, In process, each blade cuts workpiece one by one successively, and leaves successively one by one, and processing stationarity is good, with small vibration, processes work The surface smoothness of part is high.Preferably, the lift angle of the staged spiral lifting is 5 °~45 °, and further, the lift angle is 15 °, 25 °, 30 ° or 38 °, it is arranged such, is avoided that each blade circumferentially interferes in cutting process, and can subtract Small cutting resistance.

Referring to shown in Fig. 1 and Fig. 6, in the present embodiment, in order that cutter in cutting process, can make cutting edge in axle The unnecessary material of the complete resection at dead angle is not stayed upwards, it is preferable that second blade 8 is close to first blade 7 in axial direction Lap-joint has that projection of the part cutting edge on the axle section is overlapping, and the blade 8 of the second blade 8 and second is in axial overlap joint Place has that projection of the part cutting edge on the axle section is overlapping, and the 3rd blade is taken close to second blade 8 axially The place of connecing has projection of the part cutting edge on the axle section overlapping；So setting can make cutting edge realize nothing on whole axial direction Seam docking, once mills out smooth surface to be machined profile.

Referring to shown in Fig. 1 and Fig. 2, in the present embodiment, as an alternative embodiment, first on first cutting portion 3 Carry the load knife of knife platform 4, second platform 5 and the 3rd load knife platform 6 is provided with insert groove, screwed hole 11 is provided with the insert groove, it is described First blade 7, the second blade 8 and the 3rd blade 9 are provided with counter sink 12, first blade 7, the second blade 8 and the 3rd knife Piece 9 is inserted in the insert groove, and the counter sink 12 is aligned with the screwed hole 11, is linked together by screw 13.This Sample, blade is fixedly connected on the cutting tip of the cutter hub by screw, after cutting edge blunt or damage, only needs to change Blunt or the blade of damage, it is not necessary to reconditioning, more will not integrally scrap, cutter hub (including welded type blade base) is repeatable to be made With not only having saved cutter material, maintenance cost is also very low；Further, after edge wear, it is not necessary to by cutter from lathe On unload down, the screw of mechanical clamped cutting blade need to only be unclamped, you can be convenient for changing blade, can quickly resume work, maintenance efficiency has Effect improves.In the present embodiment, similarly, the blade type of the blade depending on the profile of parts to be processed, referring to Fig. 9,10 and Shown in 11, it is preferable that the blade type of the first blade 7 is sequentially connected and formed by the first dome segmental arc, straightway and concave arc section；Institute The blade type of the second blade 8 is stated by the first concave arc section, first straight line section, the second dome segmental arc, second straight line section and the second concave arc Section is sequentially connected composition；In the present embodiment, the blade type of the second blade 8 repeats to set several sections；The blade type of 3rd blade 9 by Concave arc section and the 3rd straightway are sequentially connected composition.Preferably, second blade includes：1st dome segmental arc, straightway And concave arc section；The second blade blade type includes：Concave arc section, straightway, the 2nd (3,4...) dome segmental arc, straightway and Concave arc section；.Blade blade type is so set, the kind of blade can be reduced to greatest extent and ensure the equal of each blade cut load It is even.In the present embodiment, the first, second grade determiner just to it is clear narration key element and key element component relationship, not It is to be only with second straight line section to whether identical the made restriction of the key element of blade or composition blade, such as first straight line section The key element of blade is formed, first straight line section is not limited and is differed with second straight line section or identical.

In the present embodiment, in order to solve in existing turbine disk leaf blade manufacture process, closed using titanium alloy and nickel-base high-temperature The linear velocity that golden material is allowed is than relatively low, generally all in below 20m/min, the problem of causing processing efficiency low.Preferably, institute The material for stating each blade is processed using ceramics, polycrystalline diamond or cubic boron nitride, polycrystalline diamond for titanium alloy material, Ceramics and cubic boron nitride are used for the processing of high-temperature alloy material.The processing linear velocity can so allowed improves, so as to carry High processing efficiency.

Referring to shown in Fig. 1 and Fig. 2, in the present embodiment, the cutting tip can also be according to cutting tool cutting tip Diameter or width, multiple cutting portions are uniformly arranged in its circumferential direction or on side, form a plurality of cutting edge and workpiece is carried out simultaneously Machining, so as to significantly improve processing efficiency；Preferably, circumferentially at least it is additionally provided with the cutting tip and is cut with described first The second cutting portion 14 of the angle of portion interval one is cut, at least one described first is provided with second cutting portion 14 and carries knife Platform, at least one described second carries knife platform and at least one 3rd load knife platform, carries described first and is provided with least on knife platform One the first blade, at least one second blade is provided with each described second load knife platform, knife platform is carried the described 3rd On be provided with least one 3rd blade, first blade, the second blade and the 3rd blade are along the axial direction successively staged Spiral lifting, the blade type of the first blade, the second blade and the 3rd blade that set on second cutting portion overlap to form second Cutting edge；The second chip pocket is additionally provided with the second cutting portion, each position for carrying knife platform, the second chip pocket is with the second cutting edge edge Axial direction staged spiral lifting successively；The cutting tip be circumferentially at least additionally provided with adjoin with second cutting portion and Every the 3rd cutting portion 15 of an angle, at least one described first is provided with the 3rd cutting portion 15 and carries knife platform, at least One described second carries knife platform and at least one 3rd load knife platform, is carried described first and at least one first is provided with knife platform Blade, at least one second blade is provided with each described second load knife platform, is provided with the described 3rd load knife platform At least one 3rd blade, first blade, the second blade and the 3rd blade along the axial direction successively staged spiral lifting, The blade type of the first blade, the second blade and the 3rd blade that are set on 3rd cutting portion overlaps to form the 3rd cutting edge； It is additionally provided with the 3rd chip pocket on 3rd cutting portion, each position for carrying knife platform, the 3rd chip pocket is with the 3rd cutting edge along the axial direction Staged spiral lifting successively.In the present embodiment, because each blade mutually overlaps, each chip pocket is with blade Natural communication and successively Lifting forms staged chip area.The cutting way of this milling cutter is open type cutting, and chip need not be by chip area vertically Discharge, so staged chip area will not cause chip removal not smooth and block.

Second aspect, a kind of profile milling cutter manufacture method of the utility model embodiment, for processing milling described in first aspect Knife, referring to shown in Fig. 1 and Figure 11, including step：

S1, the predetermined blade type of processing blade；

S2, the cutter hub for processing predetermined profile；

S3, the blade is installed on the cutter hub overlaps out at least one cutting consistent with parts to be processed profile Sword.

In the present embodiment, the blade can be made with cutter hub, can also directly be carried out after processing elsewhere Assemble, fixed priority processing sequence, the quantity of the blade can not determine according to the size of actual parts to be processed, most It can guarantee that the cutting edge energy one-pass that the blade is formed after being overlapped on cutter hub can complete Workpiece length dimensional directions well Cutting task, the blade type of the blade will ensure that a cutting edge being formed after overlap joint is consistent with parts to be processed profile.

A kind of profile milling cutter manufacture method of the utility model embodiment, by the way that the blade processed is installed into predetermined profile Cutter hub on, by way of overlap joint, overlap out an effective cutting edge so that milling cutter cutting edge molded line manufacturing process is simple, It is easy to process；Existing milling cutter can effectively be solved because manufacturing process caused by cutting edge molded line complexity is complicated, difficulty of processing is big The problem of, so as to improve the processing and manufacturing efficiency of milling cutter.

In the present embodiment, as an alternative embodiment, the blade of the predetermined blade type of processing also includes：According to be processed zero Part profile diagram, determine the cutting blade type of milling cutter；It is some blade type sections according to the cutting blade type classifying rationally of the milling cutter；According to institute State blade type section and set the blade for processing corresponding blade type.The blade that corresponding blade type is processed according to the blade type section includes：According to treating The material of the material selection blade cut sword of workpieces processing；The knife is processed using the electric discharge of numerical control line electrode or picosecond laser Piece, it is ± 0.005-0.01mm to ensure the blade molded line contour accuracy.So, with regard to the cutting edge that overlap joint goes out can be made Blade type is consistent with the parts to be processed profile, ensures the machining accuracy of cutting edge, so as to ensure Workpiece Machining Accuracy.

In the present embodiment, as an alternative embodiment, methods described also includes step：According to part working position profile Figure, design the general structure shape and size of cutter；It is determined that each blade on cutter specific spatial coordinate location, shape, The position of size and screw hole；It is modeled using three-dimensional graphics software, the cutting edge for ensureing to be formed after each blade overlap joint exists Projection and parts to be processed working position profile on axle section is completely the same；Using simulation software check cutter overall structure and Whether blade structure design is reasonable.So, be able to can not only preferably ensure the blade type of the cutting edge overlapped out with it is to be processed The goodness of fit of parts profile, moreover it is possible to which the cutting edge for avoiding overlap joint from being formed interference between blade etc. occurs and asked in process Topic.

Because the blade that polycrystalline diamond or cubic boron nitride material make has two kinds of structures of monoblock type and welded type, preferably Ground, the cutting edge part of the welded type blade use superhard material, and matrix uses hard alloy.In order to reasonably select blade Structure, in the present embodiment, it is preferable that it is described determine each blade on cutter specific spatial coordinate location, shape, size with And the position of screw hole includes：The structure of blade is determined according to the size of blade.

Referring to shown in Fig. 1 and Fig. 3, in the present embodiment, as another alternative embodiment, the cutter hub of the processing predetermined profile Including step：Blanking：The material is nitrided steel 38CrMoALA；Numerical control lathe is thick, smart car each several part profile, and shank is cylindrical unilateral She 0.5mm is stayed to measure；Drilling tail portion screw 16, head center hole 17；Heat treatment：Blade 30-35HRC, shank 40-45HRC；Sandblasting； Peripheral milling：Mill shank is cylindrical unilateral to stay 0.05mm；Machining center：Rough mill chip pocket；Machining center：Finish-milling chip pocket, insert groove With brill thread Pilot hole；Pincers worker：Tapping deburring；Nitriding；Peripheral milling：It is cylindrical to grind shank；Turn blue.Preferably, the numerical control lathe Slightly, smart car each several part profile, shank it is cylindrical it is unilateral stay She 0.5mm amount include：Slightly, smart car cuts out corresponding to parts to be processed profile Cutter hub profile；Axial spiral lifting successively is milled out on the cutting tip profile of corresponding cutter hub, circumference uniformly staggers Each load knife platform.

It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation Any this actual relation, whether it is identical or order.Moreover, term " comprising ", "comprising" or its any other change Body is intended to including for nonexcludability, so that process, method, article or equipment including a series of elements are not only wrapped Those key elements, but also the other element including being not expressly set out are included, or is also included for this process, method, article Or the key element that equipment is intrinsic.In the absence of more restrictions, the key element limited by sentence " including one ... ", It is not precluded from other identical element in the process including the key element, method, article or equipment being also present.

Each embodiment in this specification is described by the way of related, identical similar portion between each embodiment Point mutually referring to.

It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to In this, any one skilled in the art is in the technical scope that the utility model discloses, the change that can readily occur in Change or replace, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with right It is required that protection domain be defined.

Claims (11)

1. a kind of profile milling cutter, it is characterised in that cutting tip including cutter hub and the cutting being arranged on the cutting tip Sword, the blade type of the cutting edge are formed by the blade of at least two blades in axially overlap joint；

The projection that each blade is located at cutter hub axle section in axial lap-joint overlaps.

2. profile milling cutter according to claim 1, it is characterised in that the cutter hub is revolving body, the cutting tip At least one cutting edge is provided with circumference.

3. profile milling cutter according to claim 2, it is characterised in that throwing of each cutting edge in cutter hub axle section Shadow is consistent with the contour line of workpiece to be processed.

4. profile milling cutter according to claim 1, it is characterised in that locus of each blade on cutter hub is Spiral lifting successively vertically, and uniformly stagger circumferentially.

5. profile milling cutter according to any one of claims 1 to 4, it is characterised in that the cutting tip is at least provided with first Cutting portion, at least one first is provided with first cutting portion and carries knife platform, at least one second carries knife platform and at least one Individual 3rd carries knife platform, and at least one first blade is provided with the described first load knife platform, on each described second load knife platform At least one second blade is provided with, is carried the described 3rd and at least one 3rd blade is provided with knife platform, first blade, Second blade and the 3rd blade are along the axial direction successively staged spiral lifting, first blade, the second blade and the 3rd knife The blade type of piece overlaps to form the first cutting edge；

In the first cutting portion, the first chip pocket is additionally provided with each position for carrying knife platform, the first chip pocket is with the first cutting edge along institute State axially staged spiral lifting successively.

6. profile milling cutter according to claim 5, it is characterised in that second blade is close to first blade in axle Have that projection of the part cutting edge on the cutter hub axle section is overlapping to lap-joint, described adjacent two-by-two second carries on knife platform Have in axial lap-joint that projection of the part cutting edge on the cutter hub axle section is overlapping between second blade, the 3rd blade There is projection of the part cutting edge on the cutter hub axle section overlapping in axial lap-joint close to second blade.

7. profile milling cutter according to claim 5, it is characterised in that the lift angle of the staged spiral lifting be 5 °~ 45°。

8. profile milling cutter according to claim 5, it is characterised in that first on first cutting portion carries knife platform, the Two load knife platforms and the 3rd load knife platform are provided with insert groove, and screwed hole, first blade, the second knife are provided with the insert groove Piece and the 3rd blade are provided with counter sink, and first blade, the second blade and the 3rd blade are inserted in the insert groove, described Counter sink is aligned with the screwed hole, is connected by screw together.

9. according to any described profile milling cutter of claim 6 to 8, it is characterised in that the first blade blade type is mainly by convex Arc section, straightway and concave arc section are sequentially connected composition；

The second blade blade type is mainly by the first concave arc section, first straight line section, the second dome segmental arc, second straight line section and Two concave arc sections are sequentially connected composition；

The 3rd blade blade type is mainly sequentially connected by concave arc section and straightway to be formed.

10. profile milling cutter according to claim 1, it is characterised in that the material of each blade includes：Glomerocryst Buddha's warrior attendant Stone, cubic boron nitride or ceramics.

11. profile milling cutter according to claim 5, it is characterised in that the cutting tip is circumferentially at least additionally provided with and institute The second cutting portion of the angle of the first cutting portion interval one is stated, at least one described first is provided with second cutting portion and is carried Knife platform, at least one described second carries knife platform and at least one 3rd load knife platform, carries described first and is provided with extremely on knife platform Few first blade, at least one second blade is provided with each described second load knife platform, knife is carried the described 3rd It is provided with least one 3rd blade on platform, first blade, the second blade and the 3rd blade are along the axial direction successively ladder Formula spiral lifting, the blade type of the first blade, the second blade and the 3rd blade that set on second cutting portion overlap to form Two cutting edges；

In the second cutting portion, the second chip pocket is additionally provided with each position for carrying knife platform, the second chip pocket is with the second cutting edge along institute State axially staged spiral lifting successively；

The cutting tip is circumferentially at least additionally provided with the 3rd cutting portion for adjoining and being spaced an angle with second cutting portion, At least one described first is provided with 3rd cutting portion and carries knife platform, at least one described second carries knife platform and at least one Described 3rd carries knife platform, and at least one first blade is provided with the described first load knife platform, in each described second load knife platform On be provided with least one second blade, the described 3rd load knife platform on be provided with least one 3rd blade, first knife Piece, the second blade and the 3rd blade along the axial direction successively staged spiral lifting, set on the 3rd cutting portion first The blade type of blade, the second blade and the 3rd blade overlaps to form the 3rd cutting edge；

In the 3rd cutting portion, the 3rd chip pocket is additionally provided with each position for carrying knife platform, the 3rd chip pocket is with the 3rd cutting edge along institute State axially staged spiral lifting successively.