CN207806728U - A kind of assembled milling cutter for processing rotor radial screw bore bottom hole spherical surface - Google Patents
A kind of assembled milling cutter for processing rotor radial screw bore bottom hole spherical surface Download PDFInfo
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- CN207806728U CN207806728U CN201721923608.7U CN201721923608U CN207806728U CN 207806728 U CN207806728 U CN 207806728U CN 201721923608 U CN201721923608 U CN 201721923608U CN 207806728 U CN207806728 U CN 207806728U
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- milling cutter
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Abstract
A kind of assembled milling cutter for processing rotor radial screw bore bottom hole spherical surface, after rose cutter damage in order to solve existing whole high speed steel material, it can only do and scrap processing, tool takes excessively high problem, it includes cutter hub and knife bar, the center line of cutter hub and the center line of knife bar are on same straight line, cutter hub includes external thread section, the flat face section of milling cutter and cutter head, the flat face section of milling cutter is arranged in the middle part of cutter hub, external thread section is arranged in cutter hub end, cutter head has cutter tooth, knife bar one end is machined with flat counterbore, it is extended with the internal thread hole coaxial with flat counterbore in the middle part of flat counterbore, knife bar circumferential lateral surface where flat counterbore is to be machined with knife rod flat surface section, external thread section is screwed in internal thread hole, the flat face of the flat face section of milling cutter is flushed with the flat face of knife rod flat surface section.The utility model is used for processing rotor radial screw bore bottom hole spherical surface.
Description
Technical field
The utility model is related to a kind of assembled millings cutter for processing rotor radial screw bore bottom hole spherical surface.
Background technology
The bottom hole of turbine rotor radial screw bore is designed as spherical structure, which uses whole high speed steel material ball
Head milling cutter, processing effect is bad, and after tool wear tipping, can not repair, and can only do and scrap processing, and processing cost is big,
Tool takes using excessively high.
Utility model content
After the rose cutter damage of existing whole high speed steel material, it can only do
Processing is scrapped, tool takes excessively high problem.
The utility model in order to solve the above problem the technical solution adopted is that：
A kind of assembled milling cutter for processing rotor radial screw bore bottom hole spherical surface, it includes cutter hub and knife bar, cutter hub
Center line and knife bar center line on same straight line, cutter hub includes that the flat face section of external thread section, milling cutter and cutter head, milling cutter are flat
Face section is arranged in the middle part of cutter hub, and in cutter hub end, there is cutter head cutter tooth, knife bar one end to be machined with flat heavy for external thread section setting
Hole, flat counterbore middle part are extended with the internal thread hole coaxial with flat counterbore, and the knife bar circumferential lateral surface where flat counterbore is to add
Work has knife rod flat surface section, external thread section to be screwed in internal thread hole, and the flat face and the flat face of knife rod flat surface section of the flat face section of milling cutter are neat
It is flat.
The utility model has the following effects that compared with prior art：
The utility model is the cutter being processed and formed at one time, and under conditions of ensureing precision, milling cutter is positioned with outside cylinder
In knife bar hole, new cutter hub is only needed to change, is avoided after tool wear tipping is scrapped using threaded connection
The situation that cutter is integrally scrapped greatly reduces the cost of use of the stage property.
Description of the drawings
Fig. 1 is the overall structure front view of the utility model；
The front view of Fig. 2 knife bars；
The left view of Fig. 3 knife bars；
The front view of Fig. 4 milling cutters；
The left view of Fig. 5 milling cutters；
The A-A sectional views of Fig. 6 milling cutters；
Fig. 7 is the B-B partial sectional views of milling cutter.
Specific implementation mode
Specific implementation mode one：Illustrate that present embodiment, one kind being used for processing rotor radial screw bore hole in conjunction with Fig. 1-Fig. 7
The assembled milling cutter of bottom spherical surface, it includes cutter hub 1 and knife bar 2, and the center line of cutter hub 1 and the center line of knife bar 2 are straight in same
On line, cutter hub 1 includes external thread section 1-1, the flat face section 1-2 and cutter head 1-3 of milling cutter, and the flat face section 1-2 of milling cutter is arranged in cutter hub 1
Portion, external thread section 1-1 settings have cutter tooth in 1 end of cutter hub, cutter head 1-3, and 2 one end of knife bar is machined with flat counterbore 2-3, flat
It is extended with the internal thread hole 2-1 coaxial with flat counterbore 2-3,2 peripheral side of knife bar where flat counterbore 2-3 in the middle part of counterbore 2-3
Face is to be machined with knife rod flat surface section 2-2, and external thread section 1-1 is screwed in internal thread hole 2-1, the flat face of the flat face section 1-2 of milling cutter with
The flat face of knife rod flat surface section 2-2 flushes.The advantageous effect of present embodiment is：Knife bar and milling cutter work as milling cutter using being threadedly coupled
When tipping damages, cutter hub 1 is only replaced, does not have to integral replacing, greatly reduces the expense of tool, the flat face section 1-2 of milling cutter and knife bar
Flat face section 2-2 coordinates with external key, is disassembled and installed using external key.
With φ 50mm cylindrical handle location and installations on lathe, 30mm internal thread holes 2-1 is knife bar with cutter hub nominal outside diameter
Cutter hub 1, is connected on knife bar 2, the flat counterbore 2-3 and φ of φ 35mm by the 1-1 cooperations of 30mm external thread sections using the screw thread
1 outer circle of 35mm cutter hubs coordinates, and cutter hub 1 is by φ 35mm cylinders location and installations on knife bar 2.
Specific implementation mode two：It is illustrated in combination with fig. 1 and fig. 4 present embodiment, the number of teeth of cutter tooth is four teeth.Present embodiment
Advantageous effect be：Cutter tooth uses radius R for the arc of 36.45mm, radius and the rotor radial threaded hole bottom hole spherical surface of cutter tooth
Size is consistent, is processed and formed at one time, and ensure that machining accuracy.It is other same as the specific embodiment one.
Specific implementation mode three：Illustrate present embodiment in conjunction with Fig. 6 and Fig. 7, the anterior angle of cutter tooth is 2 °.Present embodiment
Advantageous effect is：After tool wear, it is more convenient for repairing.It is other the same as one or two specific embodiments.
Specific implementation mode four：Illustrate present embodiment in conjunction with Fig. 6 and Fig. 7, the relief angle of cutter tooth is 15 °.Present embodiment
Advantageous effect be：It allows cutter that there is more preferable processing effect, increases Knite sharpness.Other and specific implementation mode three-phase
Together.
Specific implementation mode five：Embodiment is described with reference to Fig. 2, and the other end of knife bar 2 is machined in an axial direction and arranges
The length dimension of the two flat face 2-4 set, flat face 2-4 are D=20mm, and flat face end-beveling θ is 90 °.Present embodiment has
Beneficial effect：It is dismounted from lathe convenient for cutter hub and knife bar, two flat face 2-4 are that external holding screw clamps face, tight using outside
Screw is determined by cutter bar clamping in machine tool delthyrium.It is other to be the same as the specific implementation mode 1,2 or 4.
Claims (5)
1. a kind of assembled milling cutter for processing rotor radial screw bore bottom hole spherical surface, it is characterised in that：A kind of use
In the assembly milling cutter of processing rotor radial screw bore bottom hole spherical surface include cutter hub (1) and knife bar (2), the center line of cutter hub (1) and
For the center line of knife bar (2) on same straight line, cutter hub (1) includes external thread section (1-1), the flat face section (1-2) of milling cutter and cutter head
(1-3), in the middle part of cutter hub (1), external thread section (1-1) is arranged in cutter hub (1) end, cutter head (1- flat face section (1-2) setting of milling cutter
3) there is cutter tooth, knife bar (2) one end to be machined with flat counterbore (2-3), are extended with and flat counterbore in the middle part of flat counterbore (2-3)
(2-3) coaxial internal thread hole (2-1), knife bar (2) circumferential lateral surface where flat counterbore (2-3) are to be machined with knife rod flat surface section
(2-2), external thread section (1-1) are screwed in internal thread hole (2-1), the flat face of the flat face section (1-2) of milling cutter and knife rod flat surface section (2-
2) flat face flushes.
2. a kind of assembled milling cutter for processing rotor radial screw bore bottom hole spherical surface according to claim 1, special
Sign is：The number of teeth of the cutter tooth is four teeth.
3. a kind of assembled milling cutter for processing rotor radial screw bore bottom hole spherical surface according to claim 1 or 2,
It is characterized in that：The anterior angle of the cutter tooth is 2 °.
4. a kind of assembled milling cutter for processing rotor radial screw bore bottom hole spherical surface according to claim 3, special
Sign is：The relief angle of the cutter tooth is 15 °.
5. a kind of assembled milling cutter for processing rotor radial screw bore bottom hole spherical surface according to claim 1,2 or 4,
It is characterized in that：The other end of knife bar (2) is machined with the flat face (2-4) of two to be arranged side by side in an axial direction, the length of flat face (2-4)
Size is (D)=20mm, and flat face end-beveling (θ) is 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721923608.7U CN207806728U (en) | 2017-12-29 | 2017-12-29 | A kind of assembled milling cutter for processing rotor radial screw bore bottom hole spherical surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721923608.7U CN207806728U (en) | 2017-12-29 | 2017-12-29 | A kind of assembled milling cutter for processing rotor radial screw bore bottom hole spherical surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207806728U true CN207806728U (en) | 2018-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721923608.7U Active CN207806728U (en) | 2017-12-29 | 2017-12-29 | A kind of assembled milling cutter for processing rotor radial screw bore bottom hole spherical surface |
Country Status (1)
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| CN (1) | CN207806728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113600849A (en) * | 2021-09-22 | 2021-11-05 | 山西柴油机工业有限责任公司 | Multi-size combined machining tool for cylinder holes of crankcase body of diesel engine |
-
2017
- 2017-12-29 CN CN201721923608.7U patent/CN207806728U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113600849A (en) * | 2021-09-22 | 2021-11-05 | 山西柴油机工业有限责任公司 | Multi-size combined machining tool for cylinder holes of crankcase body of diesel engine |
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