CN206104982U - Circumference cutting edge is milling cutter of parabola shape form - Google Patents

Abstract

The utility model provides a circumference cutting edge is milling cutter of parabola shape form, its includes coaxial tool bit that connects gradually and handle of a knife, the tool bit is centered on by the cutting edge portion that a plurality of parabola shape form just is the spiral shape the the central axis ring array of handle of a knife constitutes, every adjacent two around going out parabola shape form and being spiral helicine chip groove between the cutting edge portion, cutting edge portion includes all swords and end sword, the right side wall of chip groove does the rake face of all swords and end sword, zhou ren just is helix type's circumference cutting edge for the parabola shape form, the end sword is for corresponding the cutting edge of the axial terminal surface of tool bit, zhou ren with the end sword is crossing, spiral angle that parabola shape form and the zhou ren who is helix type went up the random point from the initial point of tool bit terminal surface extremely with reduce gradually in succession or increase between handle of a knife binding site's the end point, is the gradually transient range that the parabola shape form just is the spiral angle value of helix type's the last random point of zhou ren 0 60 between make up wantonly.

Description

Circumferential cutting edge is the milling cutter of parabolic shape

Technical field

The present invention relates to milling cutter technical field, particularly relates to one kind and adds suitable for millings such as groove milling, end mill, die cavity millings The circumferential cutting edge of work is the right blade milling cutter of dextrorotation of parabolic shape.

Background technology

With computer digital control machine tool（Computer numerical control, abbreviation CNC）Process technology day Beneficial ripe, working (machining) efficiency is increasingly taken seriously, and it directly determines the height of processing cost, the length of delivery cycle, for this Present situation, exigence improves the working (machining) efficiency of conventional tool, ensures the stability of working angles in mechanical processing process, and presses down Vibration is produced in the course of processing processed and plays very big effect to improving machining efficiency.

It is well known that the milling Zhou Ren of three helically wire on the face of cylinder is located in conventional end mill from cutter head end face Starting point is extremely and the helixangleθ between the end point of cutter handle combining part position is fixed value, as shown in figure 1, cutting edge resistance is obtained not To dispersion, nor very well, under high speed, high feeding Cutting and machining conditions, cutter is easy to produce vibration chip breaking function, causes Machined surface quality is reduced, and product rejection causes lathe to damage when serious.

And, when existing the groove milling of metal cutting field, end mill, die cavity milling machining, the selection of cutter is to have any different, and needs root According to different workpieces condition respectively from different milling cutters, existing cutter does not reach a cutter and is common to various machining forms, So as to increased the buying of tool category, buying and management cost are increased.

The content of the invention

The present invention provides a kind of milling cutter of circumferential cutting edge for parabolic shape, its technical problem underlying to be solved It is：Due to be located on traditional slotting cutter on the face of cylinder helically the milling Zhou Ren of wire from the starting point of cutter head end face to knife bar Helical angle between the end point at position is fixed value, and cutting edge resistance cannot disperse, chip breaking function nor very well, in height Under speed, high feeding Cutting and machining conditions, cutter is easy to produce vibration, and it is more to be simultaneously suitable for groove milling, end mill, die cavity milling etc. Plant operating mode.

For the deficiencies in the prior art, the present invention provides a kind of milling cutter of circumferential cutting edge for parabolic shape, and it includes The cutter head being coaxially sequentially connected and handle of a knife, by some parabolic shapes and helically the blade part of shape surrounds institute to the cutter head The central axis annular array composition of handle of a knife is stated, a parabolic shape is surrounded out between every two adjacent blade parts and is in Spiral helicine chip area, the blade part includes all swords and end sword, and the right side wall of the chip area is all swords and end The rake face of sword, the Zhou Ren is parabolic shape and the helically circumferential cutting edge of wire, and the end sword is correspondence described The cutting edge of the axial end of cutter head, the Zhou Ren intersects with the end sword, the week of the parabolic shape and helically wire On sword the spiral angle of arbitrfary point between the end point of the starting point to the cutter handle combining part position of cutter head end face it is continuous by Gradually it is decreased or increased, the gradual change scope of the spiral angle value of arbitrfary point exists on the Zhou Ren of the parabolic shape and helically wire Combination in any between 0 ° -60 °.

It is preferable over：The cutter head by 2 to 6 parabolic shapes and helically the blade part of shape in the handle of a knife Heart axis annular array is constituted.

It is preferable over：The blade part is parabolic shape and in right-hand screw shape, per two adjacent blade parts it Between surround out a parabolic shape and in the chip area of right-hand screw shape, the Zhou Ren be parabolic shape and in right-hand screw wire and Spiral angle from being continuously gradually reduced between the end point of the starting point to the cutter handle combining part position of cutter head end face, the throwing The spiral angle of arbitrfary point the continuous of combination in any between 60 ° -0 ° gradually subtracts on the Zhou Ren of thing wire shaped and helically wire It is little.

It is preferable over：The blade part is parabolic shape and in right-hand screw shape, per two adjacent blade parts it Between surround out a parabolic shape and in the chip area of right-hand screw shape, the Zhou Ren be parabolic shape and in right-hand screw wire and Spiral angle from continuously gradually increasing between the end point of the starting point to the cutter handle combining part position of cutter head end face, the throwing The spiral angle of arbitrfary point the continuous of combination in any between 0 ° -60 ° gradually increases on the Zhou Ren of thing wire shaped and helically wire Greatly.

It is preferable over：The blade part is parabolic shape and in left-hand screw shape, per two adjacent blade parts it Between surround out a parabolic shape and in the chip area of left-hand screw shape, the Zhou Ren be parabolic shape and in left-hand screw wire and Spiral angle from being continuously gradually reduced between the end point of the starting point to the cutter handle combining part position of cutter head end face, the throwing The spiral angle of arbitrfary point the continuous of combination in any between 60 ° -0 ° gradually subtracts on the Zhou Ren of thing wire shaped and helically wire It is little.

It is preferable over：The blade part is parabolic shape and in left-hand screw shape, per two adjacent blade parts it Between surround out a parabolic shape and in the chip area of left-hand screw shape, the Zhou Ren be parabolic shape and in left-hand screw wire and Spiral angle from continuously gradually increasing between the end point of the starting point to the cutter handle combining part position of cutter head end face, the throwing The spiral angle of arbitrfary point the continuous of combination in any between 0 ° -60 ° gradually increases on the Zhou Ren of thing wire shaped and helically wire Greatly.

It is preferable over：Starting of the anterior angle of arbitrfary point from cutter head end face on the Zhou Ren of the parabolic shape and helically wire Point is extremely gradually reduced successively and the end point of cutter handle combining part position between.

It is preferable over：Starting of the anterior angle of arbitrfary point from cutter head end face on the Zhou Ren of the parabolic shape and helically wire Point extremely gradually increases successively and the end point of cutter handle combining part position between.

It is preferable over：Lanyard is provided with the rear knife face of the Zhou Ren.

Compared with prior art, the invention has the beneficial effects as follows：By continuous gradation parabolic shape circumferential cutting edge The anterior angle of spiral angle and continuous gradation circumferential cutting edge can preferably disperse cutting resistance, and with higher chip breaking work( Can, effectively reduce cutting resistance, make machining more brisk, the antidetonation and wear resistance of cutter are improve, can High-speed machining and high efficiency cutting are carried out, the piece surface fineness for processing is good, be applicable to grooved, end mill, die cavity milling Roughing and fine machining, can be good at accomplishing that a knife is multiplex, reduce number of changing knife, improve working (machining) efficiency, and then realize that reduction is produced into This.

Description of the drawings

Fig. 1 is the structural representation of conventional end mill.

Fig. 2 is the structural representation of embodiments of the invention one.

Fig. 3 is the structural representation of embodiments of the invention two.

Fig. 4 is the structural representation of embodiments of the invention three

Fig. 5 is the structural representation of embodiments of the invention four.

Specific embodiment

It is parabolic shape to a kind of circumference sword proposed by the present invention below with reference to accompanying drawing 2 to 5 and preferred embodiment The right blade milling cutter of dextrorotation be described in greater detail.

The present invention provides a kind of dextrorotation right blade milling cutter of circumferential cutting edge for parabolic shape, and as shown in Figure 2-5, it includes Coaxially it is sequentially connected and integrally formed cutter head 1 and handle of a knife 2, by some parabolic shapes and helically shape of the cutter head 1 Blade part around the handle of a knife 2 central axis annular array constitute, surround out parabola between the adjacent blade part Shape and spiral chip area 11, the blade part includes all swords 3 and end sword 4, and the right side wall of the chip area 11 is The rake face of all swords 3 and end sword 4, all swords 3 are the external cylindrical surface upper parabolical shape of the correspondence cutter head 1 and are in The circumferential cutting edge of zigzag shape, the end sword 4 for correspondence the cutter head 1 axial end linear cutting edge, the week Sword 3 intersects with the end sword 4, and the spiral angle of arbitrfary point is from cutter head 1 on all swords 3 of the parabolic shape and helically wire End face starting point to being continuously gradually decreased or increased and the end point of the binding site of the handle of a knife 2 between, the parabolic The gradual change scope of the spiral angle value of arbitrfary point is combination in any between 0 ° to 60 ° on all swords 3 of wire shaped and helically wire. By 2 to 6 parabolic shapes and helically central axis circular array of the blade part of shape around the handle of a knife 2 of the cutter head 1 Row composition.

The present invention in the specific implementation, is continuously gradually increased or is reduced using the helical angle of arbitrfary point on all swords 3, So that the cutting force distribution of all swords 3 gradually changes in milling process, and then can effectively disperse cutting resistance, enhance knife The shock resistance of tool, disclosure satisfy that the operating mode of High-speed machining.

Embodiment one：As shown in Fig. 2 the blade part is for parabolic shape and in right-hand screw shape, per adjacent two A parabolic shape and the chip area 11 in right-hand screw shape are surrounded out between the blade part, all swords 3 are parabolic shape And in right-hand screw wire and spiral angle is between the end point of the starting point to the binding site of the handle of a knife 2 of the end face of cutter head 1 Continuously it is gradually reduced, the spiral angle of arbitrfary point is from the end face of cutter head 1 on the parabolic shape and all swords 3 in right-hand screw wire Starting point to and the combination in any between 60 ° to 0 ° of the gradual change scope between the end point of the binding site of handle of a knife 2, in Fig. 2 Choose four points on all swords 3 successively and measure swing angle, θ 1, θ 2, θ 3, θ 4, wherein the ＞ θ of 1 ＞ θ of θ, 2 ＞ θ 3 are corresponded to respectively 4, corresponding four points distance arrives the distance between end surface and is respectively L1, L2, L3, L4, L1 ＜ L2 ＜ L3 ＜ L4.

Embodiment two：As shown in figure 3, the blade part is for parabolic shape and in right-hand screw shape, per adjacent two A parabolic shape and the chip area 11 in right-hand screw shape are surrounded out between the blade part, all swords 3 are parabolic shape And in right-hand screw wire and spiral angle is between the end point of the starting point to the binding site of the handle of a knife 2 of the end face of cutter head 1 Continuously gradually increase, on all swords 3 of the right-hand screw wire spiral angle of arbitrfary point from the starting point of the end face of cutter head 1 to knife Gradual change scope between the end point of the binding site of handle 2 combination in any between 0 ° to 60 °, in Fig. 3 on all swords 3 successively Choose four points and measure swing angle, correspond to θ 1, θ 2, θ 3, θ 4, wherein the ＜ θ 4 of 1 ＜ θ of θ, 2 ＜ θ 3 respectively, corresponding four Point distance arrives the distance between end surface and is respectively L1, L2, L3, L4, L1 ＜ L2 ＜ L3 ＜ L4.

Embodiment three：As shown in figure 4, the blade part is for parabolic shape and in left-hand screw shape, per adjacent two A parabolic shape and the chip area 11 in left-hand screw shape are surrounded out between the blade part, all swords 3 are parabolic shape And in left-hand screw wire and spiral angle is between the end point of the starting point to the binding site of the handle of a knife 2 of the end face of cutter head 1 Continuously it is gradually reduced, the spiral angle of arbitrfary point is from the end face of cutter head 1 on the parabolic shape and all swords 3 in left-hand screw wire Starting point to and the combination in any between 60 ° to 0 ° of the gradual change scope between the end point of the binding site of handle of a knife 2, in Fig. 4 Choose four points on all swords 3 successively and measure swing angle, θ 1, θ 2, θ 3, θ 4, wherein the ＞ θ of 1 ＞ θ of θ, 2 ＞ θ 3 are corresponded to respectively 4, corresponding four points distance arrives the distance between end surface and is respectively L1, L2, L3, L4, L1 ＜ L2 ＜ L3 ＜ L4.

Example IV：As shown in figure 5, the blade part is for parabolic shape and in left-hand screw shape, per adjacent two A parabolic shape and the chip area 11 in left-hand screw shape are surrounded out between the blade part, all swords 3 are parabolic shape And in left-hand screw wire and spiral angle is between the end point of the starting point to the binding site of the handle of a knife 2 of the end face of cutter head 1 Continuously gradually increase, the spiral angle of arbitrfary point is from the end face of cutter head 1 on the parabolic shape and all swords 3 in left-hand screw wire Starting point to and the combination in any between 0 ° to 60 ° of the gradual change scope between the end point of the binding site of handle of a knife 2, in Fig. 5 Choose four points on all swords 3 successively and measure swing angle, θ 1, θ 2, θ 3, θ 4, wherein the ＜ θ of 1 ＜ θ of θ, 2 ＜ θ 3 are corresponded to respectively 4, corresponding four points distance arrives the distance between end surface and is respectively L1, L2, L3, L4, L1 ＜ L2 ＜ L3 ＜ L4.

Preferred embodiment：The anterior angle of arbitrfary point is from the end face of cutter head 1 on all swords 3 of the parabolic shape and helically wire Starting point to being gradually reduced successively and the end point of the binding site of handle of a knife 2 between.

Preferred embodiment：The anterior angle of arbitrfary point is from the end face of cutter head 1 on all swords 3 of the parabolic shape and helically wire Starting point to gradually increasing successively and the end point of the binding site of handle of a knife 2 between.

Preferred embodiment：Lanyard 31 is provided with the rear knife face of all swords 3.

Described in synthesis, technical scheme can complete foregoing invention purpose with sufficiently effective, and the present invention Structural principle and principle of work and power have all sufficiently been verified in embodiment, and can reach expected effect and purpose, and Embodiments of the invention can also enter line translation according to these principles, therefore, the present invention includes all in claim All replacement contents in the range of being previously mentioned.Any equivalence changes made in scope of the present invention patent, all belong to this case Within the scope of the claims of application.

Claims (9)

1. a kind of circumferential cutting edge is the milling cutter of parabolic shape, and it includes the cutter head being coaxially sequentially connected and handle of a knife, and it is special Levy and be：The cutter head by some parabolic shapes and helically central axis annular of the blade part of shape around the handle of a knife Array is constituted, and between every two adjacent blade parts a parabolic shape and spiral chip area are surrounded out, described Blade part includes all swords and end sword, and the right side wall of the chip area is the rake face of all swords and end sword, the Zhou Ren For parabolic shape and the helically circumferential cutting edge of wire, the end sword is cutting of the correspondence in the axial end of the cutter head Sword, the Zhou Ren intersects with the end sword, the spiral angle of arbitrfary point on the Zhou Ren of the parabolic shape and helically wire Continuously it is gradually reduced or increases, the parabolic between the end point of the starting point to the cutter handle combining part position of cutter head end face The gradual change scope of the spiral angle value of arbitrfary point combination in any between 0 ° -60 ° on the Zhou Ren of wire shaped and helically wire.

2. a kind of circumferential cutting edge according to claim 1 is the milling cutter of parabolic shape, it is characterised in that：The cutter head By 2 to 6 parabolic shapes and helically the blade part of shape is constituted around the central axis annular array of the handle of a knife.

3. a kind of circumferential cutting edge according to claim 2 is the milling cutter of parabolic shape, it is characterised in that：The Zhou Ren Rear knife face on be provided with lanyard.

4. a kind of circumferential cutting edge according to claim 3 is the milling cutter of parabolic shape, it is characterised in that：The parabolic The anterior angle of the Zhou Ren of wire shaped and helically wire is between the end point of the starting point to cutter handle combining part position of cutter head end face It is gradually reduced successively.

5. a kind of circumferential cutting edge according to claim 3 is the milling cutter of parabolic shape, it is characterised in that：The parabolic The anterior angle of the Zhou Ren of wire shaped and helically wire is between the end point of the starting point to cutter handle combining part position of cutter head end face Gradually increase successively.

6. a kind of circumferential cutting edge according to claim 4 or 5 is the milling cutter of parabolic shape, it is characterised in that：It is described Blade part is circumferential cutting edge for parabolic shape and in right-hand screw shape, is surrounded out between every two adjacent blade parts One parabolic shape and in the chip area of right-hand screw shape, the Zhou Ren is parabolic shape and in right-hand screw wire and spiral angle From being continuously gradually reduced between the end point of the starting point to the cutter handle combining part position of cutter head end face, the parabolic shape And helically the spiral angle of the arbitrfary point combination in any between 60 ° -0 ° is continuously gradually reduced on the Zhou Ren of wire.

7. a kind of circumferential cutting edge according to claim 4 or 5 is the milling cutter of parabolic shape, it is characterised in that：It is described Blade part surrounds out a parabolic shape for parabolic shape and in right-hand screw shape between every two adjacent blade parts And in the chip area of right-hand screw shape, the Zhou Ren is parabolic shape and in right-hand screw wire and spiral angle is from cutter head end face Starting point extremely continuously gradually increases and the end point of the cutter handle combining part position between, the parabolic shape and helically wire Zhou Ren on arbitrfary point spiral angle between 0 ° -60 ° the continuous of combination in any gradually increase.

8. a kind of circumferential cutting edge according to claim 4 or 5 is the milling cutter of parabolic shape, it is characterised in that：It is described Blade part surrounds out a parabolic shape for parabolic shape and in left-hand screw shape between every two adjacent blade parts And in the chip area of left-hand screw shape, the Zhou Ren is parabolic shape and in left-hand screw wire and spiral angle is from cutter head end face Starting point is extremely continuously gradually reduced and the end point of the cutter handle combining part position between, the parabolic shape and helically wire Zhou Ren on arbitrfary point spiral angle between 60 ° -0 ° combination in any be continuously gradually reduced.

9. a kind of circumferential cutting edge according to claim 4 or 5 is the milling cutter of parabolic shape, it is characterised in that：It is described Blade part surrounds out a parabolic shape for parabolic shape and in left-hand screw shape between every two adjacent blade parts And in the chip area of left-hand screw shape, the Zhou Ren is parabolic shape and in left-hand screw wire and spiral angle is from cutter head end face Starting point extremely continuously gradually increases and the end point of the cutter handle combining part position between, the parabolic shape and helically wire Zhou Ren on arbitrfary point spiral angle between 0 ° -60 ° the continuous of combination in any gradually increase.