Non-co-groove staggering tooth reinforced type milling cutter
Technical field
The present invention relates to high speed, superhard precision cutting tool, relate in particular to a kind of non-co-groove staggering tooth reinforced type detachable blade or welding blade milling cutter, belong to the light mechanical and electrical integration field.
Background technology
At present, carbide alloy detachable blade or welding blade milling cutter all are to adopt groove assembly toothing altogether both at home and abroad.The international renowned company that the metal cutting tool technical field is known, producing blade type standard milling cutter and non-standard milling cutter as SANDVIK, SECO, KENAMETAL, ISCAR etc. all be groove assembly flute profile formula altogether.
Groove is pieced together the flute profile milling cutter as shown in Figure 1 and Figure 2 altogether, and groove is pieced together the toothing milling cutter altogether roomy chip area, forms the multiple tooth pattern of groove altogether.Roomy chip area will inevitably reduce the cutter hub rigidity, reduces for fear of rigidity, then inevitable overstriking cutter hub, and cutter hub weight increases, and will reduce lathe efficient.Simultaneously, tool weight increases, and might surpass the tool-changing mechanical arm grip limit, causes equipment breakdown.Groove has been pieced together since the long-time practical application of flute profile milling cutter altogether, show out following shortcoming especially: 1. because chip area is roomy, it is serious to cause the milling cutter rigidity to reduce, and when especially long the or cutting tooth shape of milling cutter cutting edge was comparatively complicated, rigidity is not enough can seriously to be reduced also influence workpiece surface quality milling cutter service life; 2. groove is pieced together toothing and generally only is fit to manufacture straight trough and dextrorotation pattern altogether, and cutter with staight grooves can produce the vibrations that are difficult to suppress because cutting edge is inhomogeneous in circumferential directions during cutting, and cutting quality descends; Cutting edge very easily collapses broken, and blade clamps loosening, even can cause the serious accident of forging a knife; The milling cutter of dextrorotation pattern can produce the component that milling cutter is outwards pulled out when cutting, it is unreliable that cutter clamps, and influences the workpiece size precision; 3. groove is pieced together the toothing milling cutter altogether, because multiple tooth shared same chip pocket smear metal can occur and twine the phenomenon that produces secondary cutting under some machining condition, can influence workpiece surface quality, reduces the service life of milling cutter.
Therefore, designing a kind of milling cutter of novel cell toothing, will be a great technical task that is worth research.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, a kind of novel non-co-groove staggering tooth reinforced type milling cutter is provided.
Purpose of the present invention is achieved through the following technical solutions:
Non-co-groove staggering tooth reinforced type milling cutter, comprise cutter hub and blade, it is characterized in that: cutter hub is provided with some groups of side set cutter grooves according to processed shape line, each side set cutter groove is separate and be formed with independent chip pocket, the part of unslotted plays the effect of reinforcement, axial adjacent independent chip pocket is dislocation in a circumferential direction arranges, and the bottom of each independent chip pocket is provided with insert groove, and blade is installed in the insert groove.
Purpose of the present invention can also come further to realize by the following technical programs:
Aforesaid non-co-groove staggering tooth reinforced type milling cutter, wherein, the dislocation angle on axially adjacent its circumferencial direction of independent chip pocket can be according to diameter, shape is different and change to some extent.
Aforesaid non-co-groove staggering tooth reinforced type milling cutter, wherein, have 6 groups of side set cutter grooves on the described cutter hub, 6 groups of side set cutter grooves are separate, be formed with 3 independent chip pockets on every group of side set cutter groove, 18 blades in 18 insert grooves are straight trough, left-handed or dextrorotation dislocation is arranged.
Aforesaid non-co-groove staggering tooth reinforced type milling cutter, wherein, not on the same group its shape of blade in the cutter groove can be identical also can be inequality.
Aforesaid non-co-groove staggering tooth reinforced type milling cutter, wherein, described blade adopts welding manner to be fixed in the insert groove.
Aforesaid non-co-groove staggering tooth reinforced type milling cutter, wherein, described blade is fixed in the insert groove by screw.
Aforesaid non-co-groove staggering tooth reinforced type milling cutter, wherein, described blade is a carbide chip, or cubic boron nitride blade (CBN), or polycrystalline diamond blade (PCD).
Aforesaid non-co-groove staggering tooth reinforced type milling cutter, wherein, blade can be a standard insert according to the ISO standard, also can be special-shaped nonstandard blade.
The outstanding substantive distinguishing features and the obvious improvement of technical solution of the present invention is mainly reflected in:
Each blade has independently chip pocket on the non-co-groove staggering tooth reinforced type milling cutter of the present invention, and independent chip pocket makes each cutting edge can have the complete chip space of oneself; Reach the purpose that each cutting edge is shared cutting lay by the side set layout, promptly usually said branch bits make working angles more steady.Reinforcement is weight reduction on the whole, and it is more reasonable to make that matrix material distributes, and is issued to the purpose that strengthens the cutter rigidity in the condition that does not increase matrix weight.Process facts have proved that the cutting speed of non-co-groove staggering tooth reinforced type milling cutter can improve cutting speed 60~90%, and can increase the monodentate cutting depth, improves 3~5 times of stock-removing efficiencies.Can be widely used in the high-speed and high-efficiency cutting, economic benefit and social effect are remarkable.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Fig. 1, Fig. 2: prior art is the structural representation of groove assembly flute profile milling cutter altogether;
Fig. 3: the axonometric drawing of non-co-groove staggering tooth reinforced type milling cutter of the present invention;
The front view of Fig. 4: Fig. 3;
The left view of Fig. 5: Fig. 3;
Fig. 6~Fig. 9: the structural representation of difformity blade.
The implication of each Reference numeral sees the following form among the figure:
Reference numeral |
Implication |
Reference numeral |
Implication |
Reference numeral |
Implication |
1 |
Cutter hub |
1a |
The first road reinforcement |
1b |
Independent chip pocket |
1c |
First group of blade |
2c |
Second group of blade |
3c |
The 3rd group of blade |
4c |
The 4th group of blade |
5c |
The 5th group of blade |
6c |
The 6th group of blade |
The specific embodiment
Shown in Fig. 3~5, non-co-groove staggering tooth reinforced type milling cutter, comprise cutter hub 1 and blade, be provided with 6 groups of side set cutter grooves according to processing shape line on the cutter hub 1,6 groups of side set cutter grooves are separate, be formed with 3 independent chip pockets on every group of side set cutter groove, the part of unslotted plays the effect of reinforcement, each is organized independent chip pocket and is the setting of trisection array in a circumferential direction, its space is 120 °, and axially adjacent independent chip pocket is dislocation in a circumferential direction and arranges, and the dislocation angle on its circumferencial direction is unequal and not specific, needs to design according to milling cutter diameter and cutter shape line, guarantee that adjacent two blades cut transition in the axial direction mutually, the bottom of each independent chip pocket is provided with insert groove, and blade is welded in the insert groove, and also available screw is installed in the insert groove.From figure, can clearly find out, independent chip pocket 1b, the first road reinforcement 1a and first group of blade 1c on first group of side set cutter groove, blade 1c, 3c, 5c are ladder stagger arrangement setting, blade 2c, 4c, 6c also are ladder stagger arrangement setting, blade 1c and 2c, 2c and 3c, 3c and 4c or the like, dislocation angle difference on the circumferencial direction, 6 * 36 * 3 interior blades of insert groove form the spiralitys dislocation and arrange.Its shape of the blade in people having a common goal's cutter groove needs according to the design of processing shape line, can be identical also can be inequality.As Fig. 6~9, this milling cutter has 4 kinds of blades, and wherein 2c, 3c, 4c are identical blade, and 1c, 5c, 6c and 2c, 3c, 4c are inequality.Usually blade adopts carbide chip, also can adopt CBN (cubic boron nitride) and PCD (polycrystalline diamond) blade; Blade can be a standard insert according to the ISO standard, also can be special-shaped nonstandard blade.Blade both can be fixed in the insert groove by welding manner, also can be fixed in the insert groove by screw, satisfied repairing or replacing to single blade, and was very convenient.
Can obviously find out, each blade has independently chip pocket, and independent chip pocket makes each cutting edge can have the complete chip space of oneself, and cutting is discharged more smooth and easy, it is controlled that direction is discharged in smear metal, also can avoid the generation of some sudden hurt accidents when being used in open equipment.What is more important can be avoided cutting edge to continue to cut the smear metal of work hardening, thereby prolong the service life of milling cutter.In addition,, can design that various width differ or various difform reinforcement, make that the milling cutter matrix strength is stronger, rigidity is better according to milling cutter shape line.Meanwhile, when making cutter hub, do not need slightly to open chip area, make the efficient height, saved process time, saved manufacturing cost.Each blade can arrange that arbitrarily Fig. 3 is left-handed example by straight trough, left-handed or dextrorotation direction.Can optimize the axial drag of milling cutter according to concrete processing conditions tip arrangement, reduce axial float, make the cutting state of milling cutter more stable, help to improve crudy.With the non-co-groove staggering tooth structure and adopt the milling cutter of carbide tips, can realize fine finishining.
Manufacturing and designing of non-co-groove staggering tooth reinforced type milling cutter self is different from traditional milling cutter, parameterized design is adopted in its design, because key elements such as the cutting edge distribution of side set reinforcement shape milling cutter, side set direction, reinforcement layout, chip space shape are mutual restriction structurally, adopt the method for manual calculation to be difficult to realize, can adopt Parameterized design software to finish, such as design softwares such as UG, PRO/E, SOLIDWORK.Optimize cutting edge by parametrization design and distribute, thus the profile and the relative position relation of change chip space and reinforcement.More valuable is can adjust design at any time by the parametrization design, and the variation that will take place informs the designer at any time.The parametrization design also brings great convenience to processing and manufacturing, and Specialty Design software can directly generate the numerical control G code, has simplified the requirement of organization of production greatly.Non-co-groove staggering tooth reinforced type milling cutter is not high to the requirement of process equipment in addition, and four, three and half even three and index dial mode all can be finished manufacturing.
Non-co-groove staggering tooth reinforced type milling cutter of the present invention is total to groove assembly flute profile milling cutter with prior art and compares, and when cutting 40Cr, the cutting speed of non-co-groove staggering tooth reinforced type detachable blade or welding blade milling cutter can improve 90%; When cutting stainless steel material, can improve cutting speed 60%, because rigidity increases, cutting power improves, and has reduced the feed number of times, has improved stock-removing efficiency greatly simultaneously.
Non-co-groove staggering tooth reinforced type milling cutter is applied in horizontal milling-boring center TH61140, and main shaft pattern BT50 does not have cooling, DRY CUTTING, and machined material 40Cr, concrete cutting parameter sees Table 1.
Table 1
The cutting situation |
Non-co-groove staggering tooth reinforced type milling cutter |
Other form milling cutters |
Cutting speed |
160M/min |
85M/min |
Feed speed |
150mm/min |
70mm/min |
Processing mode |
2 layers of processing, cutting depth 5mm |
3 layers of processing, cutting depth 3mm |
Stock-removing efficiency |
500% |
100% |
In sum, each blade has independently chip pocket on the non-co-groove staggering tooth reinforced type milling cutter of the present invention, and independent chip pocket makes each cutting edge can have the complete chip space of oneself; Reach the purpose that each cutting edge is shared cutting lay by the side set layout, make working angles more steady; Reinforcement is weight reduction on the whole, and it is more reasonable to make that matrix material distributes, and is issued to the purpose that strengthens the cutter rigidity in the condition that does not increase matrix weight.Be widely used in the high-speed and high-efficiency cutting, application prospect is good.
Below only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the rights protection scope of the present invention.