CN107971544A - A kind of facing cut cutter and lathe - Google Patents

Abstract

The invention discloses a kind of facing cut cutter and lathe, it is solved in the case of cutter absolute growth is longer in the prior art, occur quivering knife the problem of, have and realize blade and the beneficial effect of workpiece point contact, its scheme is as follows：A kind of facing cut cutter, including cutterhead, cutterhead outer are equipped with least one blade fixed part, and each cutterhead fixed part is provided with insert groove, and blade is fixedly arranged in insert groove, and the blade of blade is pointed and workpiece to be machined surface is point contact；The knife edge angular scope of the blade is 30 °~55 °；Angle between the blade of the blade and workpiece to be machined surface is equal to 90 °.

Description

A kind of facing cut cutter and lathe

Technical field

The present invention relates to milling cutter manufacture field, more particularly to a kind of facing cut cutter and lathe.

Background technology

Existing face milling cutters but need cutter definitely long in conventional operating mode using all having no problem at some on the market Under the very long operating mode of degree, since the cutter cutter hub workpiece way of contact is mostly line or face contact, so asking for the knife that quivers always occurs Topic, and then work in-process causes to damage or processes not in place to workpiece surface, causes part workpiece surface quality not reach use It is required that.

The content of the invention

For overcome the deficiencies in the prior art, the present invention provides a kind of facing cut cutter, which is suitable for absolute growth Longer instrument Milling Process, avoids knife problem of quivering.

A kind of concrete scheme of facing cut cutter is as follows：

A kind of facing cut cutter, including cutterhead, cutterhead outer are equipped with least one blade fixed part, and each cutterhead fixed part is opened There is insert groove, blade is fixedly arranged in insert groove, and the blade of blade is pointed for point contact or to be approached with workpiece to be machined surface Point contact.Knife-blade ensure that the point contact state or points of proximity contact condition of blade and workpiece for tip shape in the cutter (if radian or blade relief of the blade point of a knife with setting are close to point contact shape with workpiece with set angle, blade State), and non-thread contact or face contact, influence of the knife to workpiece surface quality of quivering is avoided, accordingly even when in the case where cutter grows outstanding depth still Good surface roughness can so be processed.

Further, in order to ensure that cutter and workpiece are point contact, the knife edge angular scope of the blade is 30 °~55 °.

Further, preferably, the angle between the blade of the blade and workpiece to be machined surface is equal to 90 °, angle of the position that blade is installed between two sides and cutterhead upper surface of blade is more than or equal to 90 °, is preferably knife The outer side edges of piece are equal to 90 ° with the angle of cutterhead upper surface.

Further, the blade of the blade protrudes cutterhead and sets, and the external profile diameter of blade is slightly larger than the diameter of cutterhead.

Further, the blade is arranged in the insert groove by blade fixing piece, the shape and blade of insert groove Fixing piece is adapted.

Further, the blade fixing piece is knife bar or cutter holder, alternatively, knife bar is turning tool rod, knife bar and cutterhead gap Coordinate, when mounted, after first blade and knife bar or cutter holder are connected, then be fixed on cutterhead, such blade is fixed more Firmly.

In another embodiment, the blade is directly fixed in the insert groove.

Further, the cutterhead uses high-strength aluminum alloy material, and aluminium alloy is lighter relative to steel cutter hub, and It can meet cutter hub intensity requirement.

Further, the cutterhead sidepiece is provided with arc groove, and side is provided with arc groove and consolidates perforate, side is consolidated detachable in perforate Equipped with fastener, fastener is bolt, which can be side fixing bolt hole, and interior to be equipped with screw thread, arc groove consolidates spiral shell for installation side The empty avoiding done during bolt, is often equipped with the insert groove described in one, shape and turning tool rod or the knife of insert groove between two neighboring arc groove The form fit of folder is set；Side fixing bolt hole is through hole, for fastening bolt to be scheduled on turning tool rod, makes turning tool rod and cutterhead knife Film trap groove face fits.

Further, the cutterhead end face is provided with the core axle hole for cutterhead to be fixed on to handle of a knife, and core axle hole sidepiece is set Positioning spline is put, positioning spline is used to transmit moment of torsion, so as to fulfill the operating of cutter.

Further, the cutterhead other end sets at least one interior cold hole connected with coolant, the axis in interior cold hole Line is directed at the blade of blade, it is ensured that coolant is just sprayed onto on blade, the setting quantity in interior cold hole and the setting quantity phase of blade Together, the size in interior cold hole aperture is designed according to cold pressure, flow in cutterhead size, lathe etc., is preferably aperture 2~Φ of Φ 6, it can ensure to the sufficiently cool of blade.

Further, the blade fixing piece be provided with for fastener such as bolt pass through to compress the pressure of blade fixing piece Tight perforate, it can be hold-down bolt hole to compress perforate, and hold-down bolt hole is mainly determined according to cutter hub thickness, plays compression knife bar, Knife bar is set to be fitted closely with impeller vane groove groove face.

Further, the cutterhead is provided with height adjustment perforate to adjust the height of blade fixing piece in the sidepiece of insert groove Degree, height adjust in perforate and are detachably equipped with fastener, and fastener is bolt, and it can be height adjustment bolt that height, which adjusts perforate, Hole, height adjustment bolt hole are arranged on cutter nose circle face, and such bolt is consolidated through height adjustment bolt hole with the blade in insert groove Determine part connection, the height of such blade i.e. the axial location of blade fixing piece such as turning tool rod are adjustable, easily manufactured, are applicable in model Enclose extensively, the height of knife-blade is identical.

Further the intersection extended line of the blade rake face cross section vertical with cutter axis passes through in blade Heart line；Preferably, the cross section is set close to cutterhead upper surface.

Further, the cutterhead upper surface is plane, and blade rake face is vertically arranged with cutterhead upper surface.

Further, the extended line of cross section projection line passes through cutter head center.

The knife-blade tip is equipped with the fillet less than or equal to R3；

Alternatively, knife-blade tip is equipped with fillet, the radius of fillet is 0.2-3mm.

In addition, blade relief has a set angle, which can ensure normal use (such as the cutter of cutter during processing Will not breaking easily), and it is avoided that the knife that quivers.Preferably the angle of relief angle is more than or equal to 5 degree.Alternatively, cutter Relief angle is less than or equal to 25 degree.

For overcome the deficiencies in the prior art, present invention also offers a kind of face milling cutters lathe, using according to described one Kind facing cut cutter.

For overcome the deficiencies in the prior art, avoid milling cutter tool from quivering the method for knife present invention also offers a kind of, use A kind of facing cut cutter processes workpiece to be machined.

Compared with prior art, the beneficial effects of the invention are as follows：

1) it is pointed at by the setting of every knife-blade or close to wedge angle, ensure that when not applying cutting force, each Blade can be with the state close to point contact of workpiece, and when ensureing tool sharpening, the contact area of blade and workpiece is as far as possible It is small, avoid influence of the knife to workpiece surface quality of quivering.

2) blade is fixed by guide rod or cutter holder, it is easy to operate, and pass through side fixing bolt hole, hold-down bolt hole With the setting in height adjustment bolt hole, the convenient position adjustment to blade.

3) by the setting in interior cold hole, the lubricant effect of blade is ensured.

4) cutterhead is done by high-strength aluminum alloy material, quality is lighter under same volume, the deformation of horizontal Machining centers boring bar Small, easily manufactured, difficulty of processing is small, and input cost is low.

Brief description of the drawings

The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows Meaning property embodiment and its explanation are used to explain the application, do not form the improper restriction to the application.

Fig. 1 is 1 structure diagram one of the embodiment of the present invention；

Fig. 2 is 1 structure diagram two of the embodiment of the present invention；

Fig. 3 is that blade fixes schematic diagram with turning tool rod in the embodiment of the present invention 1；

In figure, 1. blades, 2. turning tool rods, 3. cutterheads, in 4. cold hole, 5. side fixing bolt holes, 6. hold-down bolt holes, 7. height Adjustment bolt hole, 8. core axle holes, 9. positioning splines.

Embodiment

It is noted that described further below is all illustrative, it is intended to provides further instruction to the application.It is unless another Indicate, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.

It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.

As background technology is introduced, the deficiencies in the prior art, in order to solve technical problem as above, this Shen It please propose a kind of facing cut cutter.

In a kind of typical embodiment of the application, as depicted in figs. 1 and 2, a kind of facing cut cutter, including cutterhead 3, knife 3 outer of disk is equipped with least one blade fixed part, and each cutterhead fixed part is provided with insert groove, and blade 1 is fixedly arranged in insert groove, knife The blade of piece 1 is pointed, when not applying cutting force, each blade can with workpiece to be machined work surface point contact or Points of proximity contact condition.1 blade of blade is tip shape in the cutter, ensure that the point contact state of blade and workpiece, ensures knife The contact area of piece and workpiece is small as far as possible, avoids influence of the knife to workpiece surface quality of quivering, accordingly even when outstanding in cutter length Still good surface roughness can be processed under stretching.Cutterhead uses high-strength aluminum alloy material, and aluminium alloy is relative to steel knife Body is lighter, and can also meet cutter hub intensity requirement.

In order to ensure that cutter and workpiece are point contact, the knife edge angular scope of blade 1 is 20-70 degree, preferably 30 °~ 55 °, the preferred diamond shaped insert of shape of blade or the blade of other shapes are equipped with multiple blades 1 around 3 circumference of cutterhead. Preferably, the angle between the blade of blade 1 and workpiece to be machined surface is equal to 90 °, and the position of blade installation is knife Angle between two sides of sword and cutterhead upper surface is more than or equal to 90 °, and preferably the outer side edges of blade are the same as cutterhead upper surface Angle be equal to 90 °.

Stability when preferably, in order to using raising service life and increase processing, blade rake face and knife The intersection of the vertical cross section of disk axis, can extend past the center line of blade.The cross section is preferably adjacent to cutterhead upper surface.

Cutterhead upper surface is preferably plane, and blade rake face is preferably vertical with cutterhead upper surface.

Preferably, to ensure that center is high, knife-blade passes through cutterhead in the extended line of cutterhead cross section projection line Center.

Preferably, in order to realize point contact as far as possible, blade tip is equipped with the fillet less than or equal to R3, further The radius of fillet is preferably 0.2-3mm.

Meanwhile blade relief has a set angle, which can ensure normal use (such as the cutter of cutter during processing Will not breaking easily), and it is avoided that the knife that quivers.Preferably the angle of relief angle is more than or equal to 5 degree.Further, knife The relief angle of tool is less than or equal to 25 degree.

The blade of blade 1 protrudes cutterhead and sets, and the external profile diameter of blade 1 is slightly larger than the diameter of cutterhead.

Blade 1 is arranged in insert groove by blade fixing piece, and shape and the blade fixing piece of insert groove are adapted.

Blade fixing piece is knife bar or cutter holder, alternatively, knife bar is turning tool rod 2, as shown in figure 3, knife bar is matched somebody with somebody with 3 gap of cutterhead Close, when mounted, after first blade 1 and knife bar or cutter holder are connected, then be fixed on cutterhead 3, such blade 1 is fixed more Firmly.

As one of which scheme, blade selects lathe tool blade, and structure is blade structure；

Alternatively, cutterhead is arranged in the prominent part of blade processing department, the blade processing department shape and the shape of lathe tool blade processing part It is adapted.

3 sidepiece of cutterhead is provided with arc groove, and side fixing bolt hole 5 is provided with arc groove, and certain sets two sides fixing bolt hole 5, arc groove is used for the empty avoiding done during installation side fixing bolt, and an insert groove is equipped between every two neighboring arc groove, insert groove Shape is set with the form fit of turning tool rod or cutter holder；Side fixing bolt hole 5 is through hole, for fastening bolt to be scheduled on turning tool rod 2 On, turning tool rod 2 is fitted with 3 insert groove groove face of cutterhead.

Cutterhead end face is provided with the core axle hole for cutterhead to be fixed on to handle of a knife, and core axle hole sidepiece sets positioning spline, fixed Position keyway is used to transmit moment of torsion, so as to fulfill the operating of cutter.

3 other end of cutterhead sets at least one interior cold hole 4 connected with coolant, the axis alignment blade in interior cold hole 4 Blade, it is ensured that coolant is just sprayed onto on blade, and the setting quantity in interior cold hole 4 is identical with the setting quantity of blade 1, interior cold hole The size in 4 apertures is designed according to cold pressure, flow in 3 size of cutterhead, lathe etc., is preferably aperture 2~Φ of Φ 6, can Ensure to the sufficiently cool of blade 1.Interior cold hole 4 on high-strength aluminum alloy cutterhead, ensures that cooling is abundant, cutterhead 3 passes through core axle hole 8 It is fixed on handle of a knife, positioning accuracy is very high, and handle of a knife transmits moment of torsion by positioning spline 9, so as to fulfill the operating of cutter.

Blade fixing piece be provided with for bolt pass through to compress the hold-down bolt hole 6 of blade fixing piece, hold-down bolt hole 6 Mainly determined according to cutter hub thickness, play compression knife bar, knife bar is fitted closely with impeller vane groove groove face.

Cutterhead 3 is provided with height adjustment bolt hole 7 to adjust the height of blade fixing piece in the sidepiece of insert groove, and height adjusts Bolt hole 7 is arranged on the nose circle face of cutterhead, and the height of such blade i.e. the axial location of blade fixing piece such as turning tool rod are adjustable, Easily manufactured, applied widely, the height of knife-blade is identical.Knife bar is pressed in high-strength aluminum alloy cutterhead by hold-down bolt On, positioned and clamped with side fixing bolt, nose height can be adjusted on tool setting gauge by height adjustment bolt after installing knife bar, can Ensure nose height difference within 0.01mm, so as to ensure that the surface planarity that processes is very good.

The quantity of cutterhead cutter can be configured according to needs such as cutter diameters, be preferably 3-15.

Embodiment 2

The present embodiment and the difference of embodiment 1 are：

Blade is directly fixed in insert groove.

Embodiment 3

For overcome the deficiencies in the prior art, present invention also offers a kind of face milling cutters lathe, using embodiment 1 or implements A kind of facing cut cutter of example 2.

Embodiment 4

For overcome the deficiencies in the prior art, avoid milling cutter tool from quivering the method for knife present invention also offers a kind of, use A kind of facing cut cutter of embodiment 1 or embodiment 2 processes workpiece to be machined.

The foregoing is merely the preferred embodiment of the application, the application is not limited to, for the skill of this area For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.

Claims (13)

1. a kind of facing cut cutter, it is characterised in that including cutterhead, cutterhead outer is equipped with least one blade fixed part, each knife Disk fixed part is provided with insert groove, and blade is fixedly arranged in insert groove, and the blade of blade is pointed and workpiece to be machined surface is point Contact or close to point contact.

2. a kind of facing cut cutter according to claim 1, it is characterised in that the knife edge angular scope of the blade is 30 ° ~55 °.

3. a kind of facing cut cutter according to claim 1, it is characterised in that the blade of the blade and workpiece to be machined table Angle between face is equal to 90 °；

Alternatively, blade relief has set angle；

Alternatively, the angle of relief angle is more than or equal to 5 °；

Alternatively, the angle of relief angle is less than or equal to 25 °.

4. a kind of facing cut cutter according to claim 1, it is characterised in that the blade of the blade protrudes cutterhead and sets；

Alternatively, blade selects lathe tool blade, structure is blade structure；

Alternatively, cutterhead is arranged in the prominent part of blade processing department, the blade processing department shape and the shape of lathe tool blade processing part are mutually fitted Should.

5. a kind of facing cut cutter according to claim 1, it is characterised in that the blade is arranged on institute by blade fixing piece In the insert groove stated, shape and the blade fixing piece of insert groove are adapted.

6. a kind of facing cut cutter according to claim 5, it is characterised in that the blade fixing piece is knife bar or cutter holder；

Alternatively, knife bar is turning tool rod.

7. a kind of facing cut cutter according to claim 1, it is characterised in that the cutterhead uses high-strength aluminum alloy material Material.

8. a kind of facing cut cutter according to claim 1, it is characterised in that the cutterhead sidepiece is provided with arc groove, arc Side is provided with groove and consolidates perforate, the insert groove described in one is equipped between every two neighboring arc groove, side, which is consolidated in perforate, to be detachably equipped with Fastener；

Alternatively, the blade fixing piece be provided with for fastener pass through to compress the compression perforate of blade fixing piece；

The cutterhead is provided with height adjustment perforate to adjust the height of blade fixing piece in the sidepiece of insert groove, and height adjusts perforate It is interior to be detachably equipped with fastener.

9. a kind of facing cut cutter according to claim 1, it is characterised in that the cutterhead end face, which is provided with, to be used for cutterhead The core axle hole of handle of a knife is fixed on, core axle hole sidepiece sets positioning spline.

10. a kind of facing cut cutter according to claim 1, it is characterised in that the cutterhead end face sets at least one Cold hole in being connected with coolant, the blade of the axis alignment blade in interior cold hole.

11. a kind of facing cut cutter according to claim 1, it is characterised in that the blade rake face hangs down with cutter axis The intersection extended line of straight cross section passes through the center line of blade；Alternatively, the cross section is set close to cutterhead upper surface.

12. a kind of facing cut cutter according to claim 1 or 11, it is characterised in that the cutterhead upper surface is plane, knife Piece rake face is vertically arranged with cutterhead upper surface；

Alternatively, the knife-blade passes through cutter head center in the extended line of cutterhead cross section projection line；

Alternatively, the knife-blade tip is equipped with the fillet less than or equal to R3；

Alternatively, knife-blade tip is equipped with fillet, the radius of fillet is 0.2-3mm.

13. a kind of face milling cutters lathe, it is characterised in that using a kind of face milling cutters according to any one of claim 1-12 Tool.