CN2754782Y - Arc compound edge milling cutter - Google Patents
Arc compound edge milling cutter Download PDFInfo
- Publication number
- CN2754782Y CN2754782Y CN 200420116601 CN200420116601U CN2754782Y CN 2754782 Y CN2754782 Y CN 2754782Y CN 200420116601 CN200420116601 CN 200420116601 CN 200420116601 U CN200420116601 U CN 200420116601U CN 2754782 Y CN2754782 Y CN 2754782Y
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- cutting
- arc
- milling cutter
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- edge
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- 238000003801 milling Methods 0.000 title claims abstract description 50
- 150000001875 compounds Chemical class 0.000 title 1
- 238000005520 cutting process Methods 0.000 claims abstract description 146
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005096 rolling process Methods 0.000 description 7
- 238000003754 machining Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 230000009172 bursting Effects 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
一种圆弧形复刃铣刀，具有杆部，于该杆部前段周面设置多个刀刃部，于该刀刃部之间形成排屑槽，该刀刃部前端位于排屑槽前缘研磨成刀锋面，该刀锋面前缘形成圆弧形的切削面，该圆弧形的切削面上形成突出的圆弧形切削点，该切削点与切削面及刀锋面间形成离隙角，该切削点偏离该切削面最外侧，而朝向切削面中心移位一段距离。本实用新型可避免切削时的应力集中及减少摩擦面积，增加切削速度及耐高温，切削面偏离外侧上形成突出的圆弧形切削点，能避免旋转切线力量最大位置不会位于切削面的外侧，而能降低刀刃的断裂，其具有较佳的耐冲击性及耐高温作用，可延长使用寿命，且具较高的切削速度进行加工，达到生产速度倍增效果。
A circular arc-shaped double-edged milling cutter has a rod portion, and a plurality of blade portions are arranged on the circumference of the front section of the rod portion, and a chip groove is formed between the blade portions. The front end of the blade portion is located at the front edge of the chip groove and is ground into a blade surface. The front edge of the blade surface forms an arc-shaped cutting surface, and a protruding arc-shaped cutting point is formed on the arc-shaped cutting surface. A clearance angle is formed between the cutting point and the cutting surface and the blade surface. The cutting point deviates from the outermost side of the cutting surface and shifts a distance toward the center of the cutting surface. The utility model can avoid stress concentration during cutting and reduce friction area, increase cutting speed and high temperature resistance. The cutting surface deviates from the outer side to form a protruding arc-shaped cutting point, which can avoid the maximum position of the rotating tangent force not being located on the outer side of the cutting surface, and can reduce the fracture of the blade. It has better impact resistance and high temperature resistance, can extend the service life, and can be processed at a higher cutting speed to achieve the effect of doubling the production speed.
Description
[technical field]
The utility model is about the multiple blade milling cutter of a kind of circular arc, refers to a kind of multiple blade milling cutter of circular arc with multiple sword especially.
[background technology]
In machining, commonly carry out workpiece cutting with toolroom machine, as lathe, grinding machine, drilling machine, milling machine .. etc., can justify turning for workpiece, plane lapping, boring and building up by welding, wherein, milling machine is to be rotated cutting operation with milling cutter, as Fig. 6, shown in 7, it is for commonly using the milling cutter form, it has bar portion (30) can supply the tool rest clamping, the leading portion side face is provided with several chip area (31) in bar portion (30), form blade part (32) between each chip area (31), grind to form knife edge face (33) in blade part (32) front end, and knife edge face (33) leading edge forms linear cutting face (34), two cutting faces (34) formation inclination relatively inwardly, cutting face (34) outermost forms the cutting point (341) of wedge angle form, when milling cutter rotates, can utilize the highest cutting point (341) in the outside, cutting face (34) to contact, and can be rotated cutting operation with surface of the work;
The above-mentioned milling cutter form of commonly using, its linear cutting face (34) is in the rotary cutting process, cutting point (341) formation wedge angle because of cutting face (34) outside, being easy to generate stress concentrates, and cutting point (341) position just in time is positioned at cutting face (34) outermost rolling tangential strength maximum, so when contact workpiece cuts, the promptly very easy generation stress of the outermost cutting point in cutting face (34) (341) is concentrated and is ruptured, so this kind milling cutter is not shock-resistant and be easy to wearing and tearing, burst apart and non-refractory, and be difficult to promote process velocity.
Shown in 8,9 another commonly used milling cutter for another example, its bar portion (30) leading portion side face is provided with several chip area (31), form blade part (32) between each chip area (31), grind to form knife edge face (33) in blade part (32) front end, and knife edge face (33) leading edge forms linear cutting face (34), and the cutting point (341) of (34) outermost end then has the rounding form in the cutting face;
The cutting face of above-mentioned milling cutter (34) outermost end makes into rounding (341), though can reduce problem of stress concentration, reduce cutting point (341) problem of bursting apart, yet, because the cutting point (341) of cutting face (34) still is positioned at cutting face (34) outermost rolling tangential strength maximum, so its cutting impact of being born, still cause this place's fracture easily, and show by above-mentioned all signs, the poor durability of this kind milling cutter form, speed of production is slow, is unprofitable to promote the processing characteristics of milling cutter.
[utility model content]
Because the above-mentioned shortcoming of commonly using milling cutter construction, the purpose of this utility model provides the multiple blade milling cutter of a kind of circular arc, can improve the milling cutter service behaviour, has advantage shock-resistant, high temperature resistant and that be difficult for bursting apart.
For reaching above-mentioned purpose, the utility model provides a kind of circular arc multiple blade milling cutter, it has bar portion, and a plurality of blade parts are set in this bar portion leading portion side face, between this blade part, form chip area, this blade part front end is positioned at the chip area leading edge and grinds to form knife edge face, it is characterized in that: edge forms the cutting face of circular arc in face of this knife edge, form outstanding circular arc cutting point on the cutting face of this circular arc, form angle of relief between this cutting point and cutting face and knife edge face, this cutting point departs from this cutting face outermost, and the segment distance that is shifted towards the center, cutting face.
The multiple blade milling cutter of described circular arc, it is characterized in that: this knife edge face is an arc surface.
The blade part of the multiple sword formula milling cutter of this circular arc can be two sword formulas or three sword formulas, four sword formulas, six sword formulas, eight sword formulas.
Design by this, and in the process of rotary cutting, the cutting face of circular arc contacts with surface of the work and promptly forms contacting by point of arc point, can avoid commonly using the shortcoming that easy fracture is touched in the wedge angle cutting, and the number of multiple tooth shape formula, can make the highest circular arc contact point in each circular arc cutting face form the average contact workpiece of several points, make cutting stressed can be average be distributed in each sword, form preferable machining effect, and the bigger angle of relief of formation between cutting point and cutting face and knife edge face, can make the easy dialysis of smear metal, and can avoid cutting face outermost rolling tangential strength maximum position, impact for milling cutter and can slow down the cutting impulsive force, therefore, the utility model forms the contact of circular arc cutting point, have preferable resistance to impact and high temperature resistant effect, can reach the high effect of durability, and, available higher cutting speed is processed, and reaches speed of production multiplication effect.
The multiple blade milling cutter of circular arc of the present utility model, have multiple sword and can on average bear cutting force, and cutting face with circular arc, the cutting point of an outstanding circular arc on the cutting face, when cutting, can form between arc point contact form and this cutting point and cutting face and knife edge face and form angle of relief, stress in the time of can avoiding cutting is concentrated and the attenuating friction area, and the cutting point contact position of circular arc is shifted towards the center by the outside, can avoid the outside that rolling tangential strength maximum position can not be positioned at the cutting face, and the impulsive force in reinforcement cutting face, reach preferable resistance to impact, high temperature resistant effect can prolong milling cutter service life.
[description of drawings]
Fig. 1: the utility model forms the schematic perspective view of two blade parts.
Fig. 2: the utility model forms the side view of two blade parts.
Fig. 3: the enlarged diagram of the utility model knife edge face.
Fig. 4: the utility model forms the schematic perspective view of four blade blade.
Fig. 5: the utility model forms the side view of four blade blade.
Fig. 6: the schematic perspective view of commonly using milling cutter.
Fig. 7: the side view of commonly using milling cutter.
Fig. 8: commonly use the schematic perspective view of milling cutter at point of a knife place rounding.
Fig. 9: commonly use the side view of milling cutter at point of a knife place rounding.
[specific embodiment]
Please cooperate referring to Fig. 1,2, shown in 3, be first kind of embodiment of the multiple blade milling cutter of the utility model circular arc, it has bar portion (10), and the leading portion side face is provided with a plurality of blade parts (12) in bar portion (10), between blade part (12), form chip area (11), can be used as the smear metal guiding discharges, and be positioned at chip area (11) leading edge in blade part (12) front end and grind to form knife edge face (13), knife edge face (13) leading edge is provided with the cutting face (14) of circular arc, the cutting face of circular arc (14) is gone up and is formed outstanding circular arc cutting point (141), form angle of relief (θ) between cutting point (141) and cutting face (14) and knife edge face (23), cutting point (141) and depart from cutting face (14) outermost and towards the cutting face (14) center segment distance that is shifted.
The blade part of above-mentioned first kind of example structure (12) is two sword formulas, its bar portion (10) can be arranged on the milling machine tool rest, and in the process of rotary cutting, the cutting point (141) in circular arc cutting face (14) forms contacting by point of arc point with surface of the work, and can avoid stress to concentrate, cause fracture when reducing the cutting contact.
And, the cutting point of the utility model circular arc (141) contacts by point with surface of the work, the contact point of commonly using milling cutter different from the past is to be positioned at the cutting face outermost, but towards the cutting face (14) center segment distance that is shifted, so, can avoid cutting face (14) outermost rolling tangential strength maximum position, and can slow down the cutting impulsive force, reach preferable resistance to impact and high temperature resistant effect.
Again, the arc point contact of the cutting point (141) of the utility model cutting face (14) peak, and form angle of relief (θ) between cutting point (141) and cutting face (14), can make during cutwork carries out, smear metal can be located fracture by bigger angle of relief (θ) and flee from, and can reduce wearing and tearing, the passivation that the card bits cause.
That is, the utlity model has above-mentioned advantage, and can reach the high and effect that increases the service life of durability, and the utility model can carry out machining with higher cutting speed, reaches the practical effect of speed of production multiplication.
Fig. 4 for another example, shown in 5, it is second kind of embodiment of the multiple blade milling cutter of the utility model circular arc, it has bar portion (20) equally, and the leading portion side face is provided with a plurality of blade parts (22) in bar portion (20), between blade part (22), form chip area (21), blade part (22) front end is positioned at chip area (21) leading edge and grinds to form knife edge face (23), knife edge face (23) leading edge forms the cutting face (24) of circular arc, the cutting face of circular arc (24) is gone up and is formed outstanding circular arc cutting point (241), also form angle of relief between cutting point (241) and cutting face (24) and knife edge face (23), cutting point (241) and depart from cutting face (24) outermost and towards the cutting face (24) center segment distance that is shifted.
The blade part of this second kind of embodiment (22) is four sword formulas, its bar portion (20) is arranged on the milling machine tool rest, and in the process of rotary cutting, the cutting point of circular arc (241) also can form contacting by point of arc point with surface of the work, can avoid stress to concentrate, and the contact that can reduce when cutting cause fracture;
And, this circular arc cutting point (241) is toward middle place's displacement one segment distance equally by cutting face (124) outermost, also can avoid cutting face (24) outermost rolling tangential strength maximum position, can slow down the cutting impulsive force equally, reach preferable resistance to impact and high temperature resistant effect;
And, the circular arc cutting point (241) of the outstanding peak in the utility model cutting face (24), it forms the arc point contact in process, and the bigger angle of relief of formation between cutting point (241) and cutting face (24) and knife edge face (23), the smear metal that working angles is produced can be fled from by the angle of relief place equally, and can reduce the card bits to avoid causing wearing and tearing and passivation;
Therefore, second kind of example structure also can form preferable resistance to impact and high temperature resistant effect, and can reach durability Gao Erneng and increase the service life, and available higher cutting speed is carried out machining, reaches speed of production multiplication effect.
Again, the multiple blade milling cutter of the utility model circular arc, except above-mentioned two swords or four tooth shape formulas, also can be three swords, five swords, six swords, eight sword .., the number of its multiple tooth shape formula, can be provided with according to the bar footpath size or the demand of bar portion, and the effect of multiple tooth shape formula can make the cutting point (141) in each circular arc cutting face (14) contact with workpiece, and form the average contact workpiece form of several points, can make cutting stressed can be average be distributed in each sword, form preferable machining effect.
Therefore, via the detailed description of said structure feature and technology contents, can know and find out that the utility model design characteristic is:
Provide a kind of circular arc multiple blade milling cutter, it has bar portion, and the leading portion side face is provided with a plurality of blade parts in bar portion, form chip area between blade part, the blade part front end is positioned at the chip area leading edge and grinds to form knife edge face, and edge forms the cutting face of circular arc in face of the knife edge, form outstanding circular arc cutting point on the cutting face of circular arc, form angle of relief between cutting point and cutting face and knife edge face, cutting point departs from the cutting face outermost, and the segment distance that is shifted towards the center, cutting face.
Design by this, can make on average contact workpiece of each sword, cut stressed each sword that is evenly distributed in and allow, and, cutting point forms the arc point contact form, stress in the time of can avoiding cutting is concentrated, and form angle of relief between cutting point and cutting face, can make the easy dialysis of smear metal, slow down the tool wear passivation, and, cutting point is avoided cutting face outermost rolling tangential strength maximum position, can slow down the cutting impulsive force and impact for milling cutter, it has preferable resistance to impact and high temperature resistant effect, can increase the service life, and available higher cutting speed is processed, reach speed of production multiplication effect, therefore, the utility model can carry out the machining of end mill and can reach speed of production multiplication effect with higher cutting speed.
In sum, the multiple blade milling cutter of circular arc of the present utility model has preferable practicality, progressive.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420116601 CN2754782Y (en) | 2004-12-07 | 2004-12-07 | Arc compound edge milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420116601 CN2754782Y (en) | 2004-12-07 | 2004-12-07 | Arc compound edge milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2754782Y true CN2754782Y (en) | 2006-02-01 |
Family
ID=35928417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420116601 Expired - Lifetime CN2754782Y (en) | 2004-12-07 | 2004-12-07 | Arc compound edge milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2754782Y (en) |
-
2004
- 2004-12-07 CN CN 200420116601 patent/CN2754782Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141207 Granted publication date: 20060201 |