CN208976932U - High performance precision forming tank round nose cutter - Google Patents
High performance precision forming tank round nose cutter Download PDFInfo
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- CN208976932U CN208976932U CN201821698180.5U CN201821698180U CN208976932U CN 208976932 U CN208976932 U CN 208976932U CN 201821698180 U CN201821698180 U CN 201821698180U CN 208976932 U CN208976932 U CN 208976932U
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- circular arc
- cutter
- radius
- high performance
- forming tank
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Abstract
The utility model provides a kind of high performance precision forming tank round nose cutter, including shank section and the milling portion being connect with the shank section, the milling portion is distributed uniformly and circumferentially multiple cutter grooves with arc structure, cutting edge is formed between adjacent two cutter groove, the arc structure includes the first circular arc successively to connect, the second circular arc, third circular arc, the 4th circular arc and the 5th circular arc, first circular arc, second circular arc, the third circular arc, the 4th circular arc and the 5th circular arc radius be all different.Compared with the cutter groove of existing cutter only has the circular arc of one of radius, the core that the high performance precision forming tank round nose cutter of the utility model can increase cutter by remaining four kinds of circular arc is thick, to enhance tool strength and cutting force, the chip space of cutter is ensured that simultaneously, so that cutter can carry out the processing of big surplus, high feeding, to meet customer requirement, and guarantee that cutter is not easily broken.
Description
Technical field
The utility model relates to cutting-tool engineering field more particularly to a kind of high performance precision forming tank round nose cutters.
Background technique
Milling cutter is for Milling Process, the rotary cutter with one or more cutters tooth.When work each cutter tooth successively between
Cut the surplus of workpiece with having a rest.Milling cutter is mainly used for processing plane, step, groove, forming surface and cutting workpiece on milling machine
Deng.
The cutter groove of existing milling cutter be all formed with the only wheel grinding of a radius specification, i other words, it is existing
The arc structure of the cutter groove of milling cutter only has a kind of circular arc of radius, has the following problems:, can when increasing the core thickness of cutter cutter groove
Enhance tool strength, but the chip space of cutter can then reduce, cutter using when will cause chip removal and have some setbacks, cause cutter disconnected
Knife；Conversely, when reducing the core thickness of cutter groove, it is possible to increase chip space, but tool strength can reduce, and cutter can be due to knife when using
Tool intensity not enough leads to breaking.
Utility model content
The purpose of this utility model is to provide one kind can both enhance tool strength and cutting force, ensures that the row of cutter
Consider the high performance precision forming tank round nose cutter in space to be worth doing.
To achieve the above object, the utility model provides a kind of high performance precision forming tank round nose cutter, including knife handle
Portion and the milling portion connecting with the shank section, the milling portion are distributed uniformly and circumferentially multiple with arc structure
Cutter groove, forms cutting edge between adjacent two cutter groove, and the arc structure includes the first circular arc successively to connect, the second circle
Arc, third circular arc, the 4th circular arc and the 5th circular arc, first circular arc, second circular arc, the third circular arc, described
The radius of four circular arcs and the 5th circular arc is all different.
Preferably, the cutter groove is in the shape of a spiral.
Preferably, the hand of spiral of the cutter groove is right-hand screw.
Preferably, the helical angle size of the cutter groove is within the scope of 30 ° -40 °.
Preferably, the cutting edge is right sword.
Preferably, the radius of first circular arc is 1.255 millimeters, the radius of second circular arc is 1.284 millimeters, institute
The radius for stating third circular arc is 0.375 millimeter, and the radius of the 4th circular arc is 0.378 millimeter, the radius of the 5th circular arc
It is 0.705 millimeter.
Preferably, the bottom end face in the milling portion is along the circumferential direction uniformly provided with skewed slot, the skewed slot and the cutter groove
It communicates, so that the bottom end face in the milling portion forms shear blade.
Compared with prior art, the cutter groove of the high performance precision forming tank round nose cutter of the utility model has an arcuation knot
Structure, the arc structure include the first circular arc successively to connect, the second circular arc, third circular arc, the 4th circular arc and the 5th circular arc, and
One circular arc, the second circular arc, third circular arc, the 4th circular arc and the 5th circular arc radius be all different, the cutter groove with existing cutter
The circular arc of only one of radius is compared, and the high performance precision forming tank round nose cutter of the utility model can be four kinds by remaining
Circular arc is thick come the core for increasing cutter, to enhance tool strength and cutting force, while ensuring that the chip space of cutter, so that
Cutter can carry out the processing of big surplus, high feeding, to meet customer requirement, and guarantee that cutter is not easily broken.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the high performance precision forming tank round nose cutter of the utility model.
Fig. 2 is the front view of the bottom end face of the high performance precision forming tank round nose cutter of the utility model.
Fig. 3 is the cross-sectional view in Fig. 1 at A-A.
Fig. 4 is the schematic diagram of the arc structure of the cutter groove of the high performance precision forming tank round nose cutter of the utility model.
Fig. 5 is the curve graph for being ground the grinding wheel of the cutter groove of high performance precision forming tank round nose cutter of the utility model.
Specific embodiment
In order to which the technology contents, construction feature of the utility model is described in detail, below in conjunction with embodiment and cooperate attached drawing
It is described further.
Referring to FIG. 1 to FIG. 4, the high performance precision forming tank round nose cutter 100 of the utility model include shank section 1 and with
The milling portion 2 that shank section 1 connects, milling portion 2 are distributed uniformly and circumferentially multiple cutter grooves 21 with arc structure 211,
Cutting edge 22 is formed between adjacent two cutter groove 21, arc structure 211 includes the first circular arc 211a, the second circular arc successively to connect
211b, third circular arc 211c, the 4th circular arc 211d and the 5th circular arc 211e, the first circular arc 211a, the second circular arc 211b, third circle
The radius of arc 211c, the 4th circular arc 211d and the 5th circular arc 211e are all different, and the radius of the first circular arc 211a is in 1.250-
In the range of 1.260 millimeters, the radius of the second circular arc 211b is in the range of 1.279-1.289 millimeters, third circular arc 211c
Radius be in the range of 0.370-0.380 millimeters, the radius of the 4th circular arc 211d is in 0.373-0.383 millimeters of range
Interior, the radius of the 5th circular arc 211e is in the range of 0.700-0.710 millimeters.Specifically, cutter groove 21 can be used such as Fig. 5 institute
The grinding wheel shown carries out grinding formation, and the contour curve of the grinding wheel is made of five kinds of radiuses different R1, R2, R3, R4 and R5, is
It says, R1 ≠ R2 ≠ R3 ≠ R4 ≠ R5, when processing by cutter groove 21 of the grinding wheel to cutter, can be ground to form arc structure
211 so that the first circular arc 211a of the arc structure 211, the second circular arc 211b, third circular arc 211c, the 4th circular arc 211d and
The radius of 5th circular arc 211e is all different, wherein the R1 section circular arc of grinding wheel and 211a pairs of the first circular arc of arc structure 211
It answers, the R2 section circular arc of grinding wheel and the second circular arc 211b of arc structure 211 are corresponding, the R3 section circular arc and arc structure 211 of grinding wheel
Third circular arc 211c it is corresponding, the R4 section circular arc of grinding wheel is corresponding with the 4th circular arc 211d of arc structure 211, and the R5 section of grinding wheel is justified
Arc is corresponding with the 5th circular arc 211e of arc structure 211；There was only the circular arc of one of radius with the cutter groove 21 of existing cutter
It compares, the high performance precision forming tank round nose cutter 100 of the utility model can increase the core of cutter by remaining four kinds of circular arc
Thickness to enhance tool strength and cutting force, while ensuring that the chip space of cutter.In the present embodiment, after study
And test of many times, the first circular arc 211a, the second circular arc 211b, third circular arc 211c, the 4th circular arc 211d and the 5th circular arc 211e
Optimum radius value it is as follows: the radius of the first circular arc 211a is 1.255 millimeters, and the radius of the second circular arc 211b is 1.284 millis
Rice, the radius of third circular arc 211c are 0.375 millimeter, and the radius of the 4th circular arc 211d is 0.378 millimeter, the 5th circular arc 211e's
Radius is 0.705 millimeter.
Referring to Fig. 1, in the present embodiment, in the shape of a spiral, compared with straight-line groove, cutter will not be sent out cutter groove 21 in processing
Raw vibration, so that the surface of processing can be more smooth.The hand of spiral of cutter groove 21 is right-hand screw, and cutting edge 22 is right sword.I other words
The high performance precision forming tank round nose cutter 100 of the utility model is right sword right spiral milling cutter, in high performance precision forming tank circle
When nose cutter 100 carries out Milling Process, chip can be excluded along cutter groove 21 from the direction of shank section 1, to guarantee Milling Process
Even running avoids chip from impacting the surface of processing, and then improves the surface quality of product and further increase knife
The service life of tool.Specifically, when helical angle is excessive, the contact point in blade and other cutting face is more, and blade can be very sharp, cutter
Rigidity is deteriorated, easy turned, tipping, so that cutting-tool's used life is influenced, therefore in the present embodiment, at the helical angle size of cutter groove 21
In within the scope of 30 ° -40 °.It is rough milled and finish-milling for general, can need to use 30 ° of helical angle, it is smaller for processing cutting resistance
Light-alloy when, 40 degree of helical angle can be selected, if it is above-mentioned between the two the case where, any between 30 ° -40 ° can be chosen
Angle.
Fig. 1 and Fig. 2 is please referred to, the bottom end face in milling portion 2 is along the circumferential direction uniformly provided with skewed slot 23, skewed slot 23 and cutter groove
21 communicate, so that the bottom end face in milling portion 2 forms shear blade 24, so as to convenient for workpiece progress milling.
To sum up, the cutter groove 21 of the high performance precision forming tank round nose cutter 100 of the utility model has an arc structure
211, which includes the first circular arc 211a successively to connect, the second circular arc 211b, third circular arc 211c, the 4th circle
Arc 211d and the 5th circular arc 211e, and the first circular arc 211a, the second circular arc 211b, third circular arc 211c, the 4th circular arc 211d and
The radius of 5th circular arc 211e is all different, compared with the cutter groove 21 of existing cutter only has the circular arc of one of radius, this
The core that the high performance precision forming tank round nose cutter 100 of utility model can increase cutter by remaining four kinds of circular arc is thick, thus
Enhance tool strength and cutting force, while ensuring that the chip space of cutter, so that cutter can carry out big surplus, height is fed
Processing, to meet customer requirement, and guarantees that cutter is not easily broken.
Above disclosed is only the preferred embodiments of the utility model, and the power of the utility model cannot be limited with this
Sharp range, therefore equivalent variations made according to the claim of the utility model belong to the range that the utility model is covered.
Claims (7)
1. a kind of high performance precision forming tank round nose cutter, which is characterized in that connect including shank section and with the shank section
Milling portion, the milling portion are distributed uniformly and circumferentially multiple cutter grooves with arc structure, adjacent two cutter groove it
Between form cutting edge, the arc structure include the first circular arc successively to connect, the second circular arc, third circular arc, the 4th circular arc and
5th circular arc, first circular arc, second circular arc, the third circular arc, the 4th circular arc and the 5th circular arc
Radius is all different, and the radius of first circular arc is in the range of 1.250-1.260 millimeters, the radius of second circular arc
In the range of 1.279-1.289 millimeters, the radius of the third circular arc is in the range of 0.370-0.380 millimeters, institute
The radius for stating the 4th circular arc is in the range of 0.373-0.383 millimeters, and the radius of the 5th circular arc is in 0.700-0.710
In the range of millimeter.
2. high performance precision forming tank round nose cutter according to claim 1, which is characterized in that the cutter groove is helically
Shape.
3. high performance precision forming tank round nose cutter according to claim 2, which is characterized in that the spiral side of the cutter groove
To for right-hand screw.
4. high performance precision forming tank round nose cutter according to claim 2, which is characterized in that the helical angle of the cutter groove
Size is within the scope of 30 ° -40 °.
5. high performance precision forming tank round nose cutter according to claim 1, which is characterized in that the cutting edge is the right side
Sword.
6. high performance precision forming tank round nose cutter according to claim 1, which is characterized in that the half of first circular arc
Diameter is 1.255 millimeters, and the radius of second circular arc is 1.284 millimeters, and the radius of the third circular arc is 0.375 millimeter, institute
The radius for stating the 4th circular arc is 0.378 millimeter, and the radius of the 5th circular arc is 0.705 millimeter.
7. high performance precision forming tank round nose cutter according to claim 1, which is characterized in that the bottom in the milling portion
End face is along the circumferential direction uniformly provided with skewed slot, and the skewed slot is communicated with the cutter groove, so that the bottom end face shape in the milling portion
At shear blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821698180.5U CN208976932U (en) | 2018-10-18 | 2018-10-18 | High performance precision forming tank round nose cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821698180.5U CN208976932U (en) | 2018-10-18 | 2018-10-18 | High performance precision forming tank round nose cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208976932U true CN208976932U (en) | 2019-06-14 |
Family
ID=66788232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821698180.5U Active CN208976932U (en) | 2018-10-18 | 2018-10-18 | High performance precision forming tank round nose cutter |
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| Country | Link |
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| CN (1) | CN208976932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178592A (en) * | 2021-12-16 | 2022-03-15 | 铣立(上海)切削技术有限公司 | Universal drill bit |
-
2018
- 2018-10-18 CN CN201821698180.5U patent/CN208976932U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178592A (en) * | 2021-12-16 | 2022-03-15 | 铣立(上海)切削技术有限公司 | Universal drill bit |
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