CN207103937U - Reinforced round nose slotting cutter - Google Patents
Reinforced round nose slotting cutter Download PDFInfo
- Publication number
- CN207103937U CN207103937U CN201720659036.XU CN201720659036U CN207103937U CN 207103937 U CN207103937 U CN 207103937U CN 201720659036 U CN201720659036 U CN 201720659036U CN 207103937 U CN207103937 U CN 207103937U
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- CN
- China
- Prior art keywords
- side edge
- knife bar
- slotting cutter
- round nose
- knife
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Abstract
The utility model discloses a kind of reinforced round nose slotting cutter, including columned knife bar, the perisporium of knife bar bottom and lower surface form the side edge and end sword that a plurality of axis around knife bar is distributed respectively, the perisporium of knife bar offers appearance bits sword groove between adjacent side edge, arc transition and the point of a knife of circular arc is formed between the rear blade surface of every side edge and every end sword, the tool arc transition of the lip surface of every side edge adjacent to the region of point of a knife and circular arc.The utility model can improve the lip surface of side edge and the structural strength of circular arc point of a knife transition position, in rapid processing workpiece, to reduce the degree of injury of the lip surface of side edge and the transition position of circular arc point of a knife, so as to improve the service life of reinforced round nose slotting cutter.
Description
Technical field
Milling cutter technical field is the utility model is related to, more particularly to a kind of reinforced round nose slotting cutter.
Background technology
Slotting cutter is mainly used in processing plane, step surface and groove etc. on workpiece.In a variety of slotting cutters, round nose vertical milling
Knife is best suitable for being used for rapid processing, is widely used in workpiece and opens thick or shape of the processing with arc angle.Existing round nose is stood
Milling cutter, typically form beat around the distribution of its axis respectively with columned knife bar, the perisporium of knife bar bottom and lower surface more
Side edge and end sword, the perisporium of knife bar offers appearance bits sword groove between adjacent side edge, for chip removal.Side edge is under knife bar
End face extends spirally to upper surface direction, the rear blade surface (or rear knife face) and end sword arc transition of side edge, and forms radian and be
The circular arc point of a knife of quadrant, round nose slotting cutter with milling machine cutter shaft swivel feeding when, can be to being fixed on workbench
Workpiece carries out Milling Process.
But existing round nose slotting cutter still suffers from following deficiency：1st, lip surface (or the preceding knife of the side edge of round nose slotting cutter
Face) and the substantially rectangular transition of circular arc point of a knife, the intensity of the right angle transition position is still not strong enough, in rapid processing, the right angle
The possibility that damaging occurs in transition position is still larger.2nd, round nose slotting cutter core diameter (core diameter refers on the axis of center of circle circle of position bar,
And the imaginary diameter of a circle tangent with all sword grooves on knife bar, also referred to as core are thick) smaller, about 0.6 times of knife bar diameter, knot
Structure rigidity is smaller.3rd, the spiral angle of side edge is larger, typically about 35 °, causes side edge being axially moved with knife bar along workpiece
When, larger vertical drag is born, on the one hand can increase the damage of side edge, on the other hand, processing efficiency can be reduced.
Utility model content
Main purpose of the present utility model is to propose a kind of reinforced round nose slotting cutter, it is intended to improves the side of round nose slotting cutter
The intensity of sword and the transition position of circular arc point of a knife.
To achieve the above object, the utility model proposes a kind of reinforced round nose slotting cutter, including columned knife bar, knife
The perisporium of bar bottom and lower surface form the side edge that a plurality of axis around knife bar is distributed and are located at end sword, the perisporium of knife bar respectively
Appearance bits sword groove is offered between adjacent side edge, arc transition and circular arc is formed between the rear blade surface of every side edge and every end sword
The point of a knife of shape, the tool arc transition of the lip surface of every side edge adjacent to the region of point of a knife and circular arc.
Technical solutions of the utility model due to by the lip surface of every side edge adjacent to the region of point of a knife and the point of a knife of circular arc
Between be set to arc transition, to improve the structural strength of the lip surface of side edge and circular arc point of a knife transition position, with rapid processing
During workpiece, the degree of injury of the lip surface of side edge and the transition position of circular arc point of a knife is reduced, so as to improve reinforced round nose vertical milling
The service life of knife.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the reinforced round nose slotting cutter of the utility model；
Fig. 2 is the front view of the reinforced round nose slotting cutter of the utility model；
Fig. 3 is the enlarged detail of Fig. 2 part A；
Fig. 4 is sectional views of the Fig. 2 along B-B directions；
Fig. 5 is the enlarged detail of Fig. 4 C portion.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme in the embodiment of the utility model is clearly and completely described, shown
So, described embodiment is only part of the embodiment of the present utility model, rather than whole embodiments.Based on this practicality
Embodiment in new, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of the utility model protection.
If it is to be appreciated that related in the utility model embodiment directionality instruction (such as up, down, left, right, before and after,
Top, bottom, inside and outside, vertical, transverse direction, longitudinal direction, counterclockwise, clockwise, circumferentially, radially, axially ...), then directionality indicates only
For explaining relative position relation under a certain particular pose (as shown in drawings) between each part, motion conditions etc., if
When the particular pose changes, then directionality instruction also correspondingly changes therewith.
If in addition, relate to the description of " first " or " second " etc. in the utility model embodiment, should " first " or
The description of person " second " etc. is only used for describing purpose, and it is not intended that instruction or implying its relative importance or implicit indicating
The quantity of indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or implicitly include to
Few this feature.In addition, the technical scheme between each embodiment can be combined with each other, but must be common with this area
Technical staff can be implemented as basis, and this skill is will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of art scheme is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of reinforced round nose slotting cutter.
In the utility model embodiment, as shown in Fig. 1 to 5, the reinforced round nose slotting cutter, including columned knife bar 1,
Knife bar 1 is mountable to move on the cutter shaft (not shown) of milling machine (not shown) and with cutter shaft, the perisporium of the bottom of knife bar 1 and lower surface
Side edge 2 and end sword 3 that a plurality of axis around knife bar 1 is distributed are formed respectively, and the perisporium of knife bar 1 is between adjacent side edge 2
Appearance bits sword groove 4 is offered, for chip removal.Side edge 2 extends spirally in end face direction upwardly from the lower end of knife bar 1, every side edge 2
Arc transition and the point of a knife 5 of circular arc is formed between blade surface and every end sword 3 afterwards, the lip surface of every side edge 2 is adjacent to point of a knife 5
Region 6 and the arc transition of point of a knife 5 of circular arc.It is strong to improve the structure of the lip surface of side edge 2 and the transition position of circular arc point of a knife 5
Degree, at rapid processing workpiece (not shown), to reduce the damage journey of the lip surface of side edge 2 and the transition position of circular arc point of a knife 5
Degree, so as to improve the service life of reinforced round nose slotting cutter.
In the utility model embodiment, side edge 2 and end sword 3 quantity can (such as knife bar 1 be straight according to actual conditions
Situations such as material of footpath size, knife bar 1 or workpiece to be processed) depending on, can be respectively two, three, four, five or more
More, the axis of a plurality of side edge 2 and end sword 3 preferably around knife bar 1 is uniformly distributed, to ensure the stationarity of the rotation of knife bar 1.Such as Fig. 2, figure
It is the situation that side edge 2 and end sword 3 respectively have four shown in 4.
Further, core diameter (or core thick) d of knife bar 1 is 0.79~0.8 times of the outer diameter D of knife bar 1, for example, 0.790
Times, 0.791 times, 0.792 times, 0.793 times, 0.794 times, 0.795 times, 0.796 times, 0.797 times, 0.798 times, 0.799 times or
0.8 times of person etc., preferably 0.793 times or 0.794 times.So that a diameter of D is 12MM knife bar as an example, its core diameter d preferably 9.52 ±
0.03MM, now, the rigidity of the reinforced round nose slotting cutter of the utility model is preferably.Can selectively, the radius of circular arc point of a knife
For 1MM.
Specifically, as shown in Fig. 2 side edge extends spirally in end face direction upwardly from the lower end of knife bar 1, spiral angle a is
14 °~16 °, for example, 14 °, 15 ° or 16 °, preferably 15 °, this spiral angle is relatively small, make side edge with knife bar 1 along work
When part is axially moved, less vertical drag is born, on the one hand can reduce the damage of side edge 2, on the other hand, processing effect can be improved
Rate.
In the utility model embodiment, as shown in figure 5, the anterior angle of side edge 2 is negative rake, the cutting of side edge 2 can be improved
Intensity.The specific angle beta of negative rake is -10 °~-15 °, is, for example, -10 °, -11 °, -12 °, -13 °, -14 ° or -15 °, excellent
- 12 ° of choosing.
Specifically, the material of knife bar 1 can be selected according to factors such as the material of workpiece to be processed and the predetermined amount of feeding
Select, be made for example with high-speed tool steel or hard alloy, preferably wolfram steel.
In the utility model embodiment, the surface of all surfaces of knife bar 1 or at least bottom coating high temperature resistant and
The preferable coating of anti-wear performance, to improve cutting-tool's used life.Specifically, coating can be silicon nitride coating, titanium nitride painting
Layer or nitrogen aluminium titanium coating etc..
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every equivalent structure under utility model of the present utility model design, made using the utility model specification and accompanying drawing content
Conversion, or directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of reinforced round nose slotting cutter, including columned knife bar, the perisporium of knife bar bottom and lower surface form respectively
The side edge and end sword that a plurality of axis around knife bar is distributed, the perisporium of knife bar offer appearance bits sword groove between adjacent side edge,
Arc transition and the point of a knife of circular arc is formed between the rear blade surface of every side edge and every end sword, it is characterised in that：Every side edge
Lip surface adjacent to the region of point of a knife and circular arc tool arc transition.
2. reinforced round nose slotting cutter according to claim 1, it is characterised in that：Side edge and end sword quantity for two,
Three, four or five, a plurality of side edge and end sword are uniformly distributed around the axis of knife bar.
3. reinforced round nose slotting cutter according to claim 1, it is characterised in that：The core diameter d of knife bar is knife bar outer diameter D
0.79~0.8 times.
4. reinforced round nose slotting cutter according to claim 3, it is characterised in that：The core diameter d of knife bar is knife bar outer diameter D
0.793 times or 0.794 times.
5. reinforced round nose slotting cutter according to claim 1, it is characterised in that：Side edge is held upwardly from the lower end of knife bar
Face direction extends spirally, and spiral angle a is 14 °~16 °.
6. the reinforced round nose slotting cutter stated according to claim 5, it is characterised in that：The spiral angle a of side edge is 15 °.
7. reinforced round nose slotting cutter according to claim 1, it is characterised in that：Knife bar is made of wolfram steel.
8. reinforced round nose slotting cutter according to claim 1, it is characterised in that：The all surfaces of knife bar or at least under
The surface coating high temperature resistant and the preferable silicon nitride coating of anti-wear performance, titanium nitride coating or nitrogen aluminium titanium coating in portion.
9. reinforced round nose slotting cutter as claimed in any of claims 1 to 8, it is characterised in that：The anterior angle of side edge
For negative rake, the specific angle beta of negative rake is -10 °~-15 °.
10. according to the reinforced round nose slotting cutter described in claim 9, it is characterised in that：The specific angle beta of negative rake is -12 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720659036.XU CN207103937U (en) | 2017-06-08 | 2017-06-08 | Reinforced round nose slotting cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720659036.XU CN207103937U (en) | 2017-06-08 | 2017-06-08 | Reinforced round nose slotting cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207103937U true CN207103937U (en) | 2018-03-16 |
Family
ID=61594951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720659036.XU Active CN207103937U (en) | 2017-06-08 | 2017-06-08 | Reinforced round nose slotting cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207103937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352838A (en) * | 2018-09-27 | 2019-02-19 | 基准精密工业（惠州）有限公司 | Round nose knife |
-
2017
- 2017-06-08 CN CN201720659036.XU patent/CN207103937U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352838A (en) * | 2018-09-27 | 2019-02-19 | 基准精密工业（惠州）有限公司 | Round nose knife |
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