CN220259659U - Internal cooling type blade root groove forming milling cutter - Google Patents
Internal cooling type blade root groove forming milling cutter Download PDFInfo
- Publication number
- CN220259659U CN220259659U CN202321875064.7U CN202321875064U CN220259659U CN 220259659 U CN220259659 U CN 220259659U CN 202321875064 U CN202321875064 U CN 202321875064U CN 220259659 U CN220259659 U CN 220259659U
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- water outlet
- milling cutter
- hole
- groove
- cutter
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- 238000003801 milling Methods 0.000 title claims abstract description 52
- 238000001816 cooling Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 111
- 238000010892 electric spark Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 abstract description 16
- 239000000110 cooling liquid Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an inner-cooling type blade root groove forming milling cutter which comprises a milling cutter body and a groove, wherein the groove is formed in the bottom of the surface of the milling cutter body, a main water hole is formed in the axial lead of the milling cutter body, a plurality of water outlets are formed in the outer side of the main water hole, the plurality of water outlets are arranged in an annular equidistant manner, and the water outlets are formed in the outer side of the groove. According to the external cooling type blade root groove forming milling cutter, the main water hole is matched with the water outlet hole, and the cooling liquid is sprayed out of the water outlet hole of the cutter groove, so that the problem that the cooling of the cutting area has direct influence on the service life of the cutter, the cutting area of the existing external cooling type blade root groove forming milling cutter cannot be cooled, chips are not easy to discharge and are easy to block in the groove is solved, the cutter is seriously heated due to the existence of the two problems, the cutter is extremely easy to wear and collapse, the service life of the cutter is short, the length of the blade root groove can only be processed by four to five meters, and the use effect of the milling cutter is influenced.
Description
Technical Field
The utility model relates to the technical field of milling cutters, in particular to an inner-cooling type blade root groove forming milling cutter.
Background
The blade root groove forming milling cutter is widely applied to forming processing of a blade root groove of a steam turbine rotor, and is mainly characterized in that the forming processing of the blade root groove of the steam turbine rotor is semi-closed processing, a cutting edge with 180 degrees is arranged on the circumference edge of a cutter to be in direct closed contact with the blade root groove, an external cooling mode is adopted when the existing blade root groove cutter in the market at present is used for cutting, cooling liquid is directly sprayed on the cutter, the semi-closed cutting edge with 180 degrees of the blade root groove milling cutter rotates at high speed and is blocked by scrap iron stored in a cutter groove, and the cooling liquid cannot enter a 180-degree closed cutting area.
Because the cooling of cutting zone has direct influence to the cutter life-span, the outer cold type blade root groove of current takes shape milling cutter cutting zone unable cooling, and the difficult discharge of smear metal simultaneously blocks up in the slot easily, and the existence of these two problems leads to the serious fever of cutter, and the cutter extremely easily appears wearing and tearing and collapse, and the cutter life-span is short, and blade root groove length can only process four to five meters, has influenced the result of use of milling cutter.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model aims to provide an inner cooling type blade root groove forming milling cutter, which has the advantages of inner cooling, and solves the problems that the cutting area of the existing outer cooling type blade root groove forming milling cutter cannot be cooled, chips are difficult to discharge and are easy to block in grooves, the cutter is seriously heated due to the existence of the two problems, the cutter is extremely easy to wear and collapse, the service life of the cutter is short, the blade root groove length can only be processed by four to five meters, and the using effect of the milling cutter is influenced.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an interior cold type blade root groove milling cutter that takes shape, includes milling cutter body and slot, the bottom at milling cutter body surface is seted up to the slot, main water hole has been seted up on the axial lead of milling cutter body, the outside of main water hole is provided with the apopore, the apopore is provided with a plurality of, and a plurality of apopore is annular equidistance setting, the outside at the slot is seted up to the apopore, the one end and the main water hole of apopore are linked together.
As a preferred embodiment of the present utility model, the diameter d1 of the main water hole isThe size of the main water hole is adjusted according to the diameter D of the cutter body.
As a preferable aspect of the utility model, the diameter d2 of the water outlet hole is as large asThe diameter of the water outlet hole is adjusted according to the d1 size of the diameter of the main water hole.
As preferable in the utility model, the number of the water outlet holes is regulated according to the length L of the cutter blade, and the axial positions of the water outlet holes are 3-5mm apart.
As preferable in the utility model, the included angle theta between the water outlet and the main water outlet is 30-45 degrees, and the included angle of the water outlet is adjusted according to the external cone angle of the groove profile.
Preferably, the main water hole is formed by directly pressing and sintering when the cutter is used for blank making, and the water outlet hole is formed by punching by an electric spark machine tool.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the external cooling type blade root groove forming milling cutter, the main water hole is matched with the water outlet hole, and the cooling liquid is sprayed out of the water outlet hole of the cutter groove, so that the problem that the cooling of the cutting area has direct influence on the service life of the cutter, the cutting area of the existing external cooling type blade root groove forming milling cutter cannot be cooled, chips are not easy to discharge and are easy to block in the groove is solved, the cutter is seriously heated due to the existence of the two problems, the cutter is extremely easy to wear and collapse, the service life of the cutter is short, the length of the blade root groove can only be processed by four to five meters, and the use effect of the milling cutter is influenced.
2. The utility model sets the main water hole, the diameter d1 of the main water hole isCan effectively ensure the flow of the cooling liquidMove for the coolant liquid is by stable blowout through the delivery port, not only can play cooling effect, can also wash the piece and make the piece discharged, and main water hole need be adjusted according to diameter D size to reach the milling cutter body of equidimension all can the adaptation use.
3. The utility model sets the water outlet hole, the diameter d2 of the water outlet hole is as followsThe cooling liquid can be effectively ensured to be stably sprayed out, the phenomenon that the normal output of the milling cutter body is influenced by larger or smaller aperture of the water outlet is avoided, meanwhile, the diameter of the water outlet is adjusted according to the d1 size of the diameter of the main water outlet, and the situation that the milling cutter body is broken and damaged in use due to larger aperture is prevented.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of a front view structure of the present utility model;
fig. 3 is a schematic top view of the present utility model.
In the figure: 1. a milling cutter body; 2. a groove; 3. a main water hole; 4. and a water outlet hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 3, the inner cooling type blade root groove forming milling cutter provided by the utility model comprises a milling cutter body 1 and a groove 2, wherein the groove 2 is formed in the bottom of the surface of the milling cutter body 1, a main water hole 3 is formed in the axial lead of the milling cutter body 1, water outlet holes 4 are formed in the outer side of the main water hole 3, a plurality of water outlet holes 4 are formed, the water outlet holes 4 are annularly equidistantly arranged, the water outlet holes 4 are formed in the outer side of the groove 2, and one end of each water outlet hole 4 is communicated with the main water hole 3.
Referring to fig. 1, the diameter d1 of the main water hole 3 isThe size of the main water hole 3 is adjusted according to the diameter D of the cutter body.
As a technical optimization scheme of the utility model, by arranging the main water hole 3, the diameter d1 of the main water hole 3 is as followsCan effectually guarantee the flow of coolant liquid for the coolant liquid is by stable blowout through the delivery port, not only can play cooling effect, can also wash the piece and make the piece discharged, and main water hole 3 need be adjusted according to diameter D size, so that the milling cutter body 1 that reaches different sizes can all adapt to use.
Referring to fig. 1, the diameter d2 of the water outlet hole 4 is as large asThe diameter of the water outlet hole 4 is adjusted according to the d1 of the diameter of the main water hole 3.
As a technical optimization scheme of the utility model, through arranging the water outlet holes 4, the diameter d2 of the water outlet holes 4 is as followsThe cooling liquid can be effectively ensured to be stably sprayed out, the phenomenon that the normal output of the milling cutter body 1 is influenced by the larger or smaller aperture of the water outlet 4 is avoided, meanwhile, the diameter of the water outlet 4 is adjusted according to the d1 size of the diameter of the main water outlet 3, and the situation that the milling cutter body 1 is broken and damaged in use due to the larger aperture is prevented.
Referring to fig. 1, the number of water outlet holes 4 is adjusted according to the cutter blade length L, and the axial positions between the water outlet holes 4 are 3-5mm apart.
As a technical optimization scheme of the utility model, through arranging the water outlet holes 4, the number of the water outlet holes 4 is adjusted according to the cutter blade length L, the situation that the use strength of the milling cutter body 1 is affected by a large number of the water outlet holes 4 in actual use is avoided, the number of the water outlet holes 4 is small, the milling cutter body 1 cannot be effectively cooled and sprayed, and the axial positions among the water outlet holes 4 are 3-5mm apart, so that the use strength of the milling cutter body 1 is ensured.
Referring to fig. 1, the included angle theta between the water outlet hole 4 and the main water outlet hole 3 is 30-45 degrees, and the included angle of the water outlet hole 4 is adjusted according to the external cone angle of the molded line of the groove 2.
As a technical optimization scheme of the utility model, through arranging the water outlet hole 4, the included angle theta between the water outlet hole 4 and the main water hole 3 is 30-45 degrees, so that not only can the stable circulation of cooling liquid be ensured, but also the sprayed cooling liquid of the water outlet hole 4 can be used for stably flushing and discharging scraps, and the included angle of the water outlet hole 4 is adjusted according to the angle of the blade root groove profile outer cone so as to ensure the use angle of the water outlet hole 4 in use.
Referring to fig. 1, the main water hole 3 is formed by directly pressing and sintering when a cutter is used for making blanks, and the water outlet hole 4 is formed by punching by an electric spark machine tool.
As a technical optimization scheme of the utility model, the main water hole 3 and the water outlet hole 4 are arranged, the main water hole 3 is directly pressed and sintered when being made into blanks by a cutter, the production cost and the processing difficulty of the main water hole 3 are reduced, the water outlet hole 4 is punched by an electric spark machine tool, and the accuracy and the production efficiency of the water outlet hole 4 in production are ensured.
The working principle and the using flow of the utility model are as follows: when in use, the cooling liquid is injected into the main water hole 3, and then is sprayed out from the groove 2 through the water outlet communicated with the main water hole 3, on one hand, the cooling liquid can be directly sprayed on the cutting edge in the closed cutting area to cool down the cutting edge, and the abrasion of the milling cutter body 1 is reduced, on the other hand, the internal cooling water outlet adopts an injection mode from inside to outside, so that the chips can be smoothly discharged outwards, the phenomenon of chip extrusion and cutter breakage is avoided, the 2 problems are solved, the service life of the cutter can be prolonged by 2-3 times, the effect of the internal cooling milling cutter body 1 is achieved, and meanwhile, the diameter d1 of the main water hole 3 is as followsCan effectively ensure the flow of the cooling liquid, and can be adjusted according to the diameter D, and the diameter D2 of the water outlet hole 4 is +.>The cooling liquid can be effectively ensured to be stably sprayed out, the influence of larger or smaller aperture of the water outlet 4 on the normal output of the milling cutter body 1 is avoided, meanwhile, the diameter of the water outlet 4 is adjusted according to the d1 size of the diameter of the main water outlet 3, the situation that the milling cutter body 1 is broken and damaged when the aperture is larger in use is prevented, the included angle theta between the water outlet 4 and the main water outlet 3 is 30-45 degrees, and the use effect of the milling cutter is enhanced due to the adjustment according to the angle of the external cone of the molded line of the groove 2 during use adjustment.
To sum up: this interior cold type blade root slot takes shape milling cutter, through setting up main water hole 3 cooperation apopore 4, spout coolant liquid by the apopore 4 of cutter slot 2, it has direct influence to the cutter life-span to have solved because the cooling of cutting zone, the unable cooling of current outer cold type blade root slot takes shape milling cutter cutting zone, the difficult discharge of smear metal simultaneously, the easy jam is in the slot, the existence of these two problems leads to the serious fever of cutter, the cutter extremely easily appears wearing and tearing and collapse, the cutter life-span is short, the blade root slot length can only process four to five meters, the problem of milling cutter result of use has been influenced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An inner cooling type blade root groove forming milling cutter comprises a milling cutter body (1) and a groove (2), and is characterized in that: the milling cutter is characterized in that the groove (2) is formed in the bottom of the surface of the milling cutter body (1), a main water hole (3) is formed in the axial lead of the milling cutter body (1), a water outlet hole (4) is formed in the outer side of the main water hole (3), a plurality of water outlet holes (4) are formed in the outer side of the groove (2) at equal intervals, and the water outlet holes (4) are formed in annular equidistance, and one end of each water outlet hole (4) is communicated with the main water hole (3).
2. An inner cooled root slot forming mill as claimed in claim 1, wherein: the diameter d1 of the main water hole (3) isThe size of the main water hole (3) is adjusted according to the diameter D of the cutter body.
3. An inner cooled root slot forming mill as claimed in claim 1, wherein: the diameter d2 of the water outlet hole (4) is as followsThe diameter of the water outlet hole (4) is adjusted according to the d1 size of the diameter of the main water hole (3).
4. An inner cooled root slot forming mill as claimed in claim 1, wherein: the number of the water outlet holes (4) is adjusted according to the length L of the cutter blade, and the axial positions of the water outlet holes (4) are 3-5mm apart.
5. An inner cooled root slot forming mill as claimed in claim 1, wherein: the included angle theta between the water outlet hole (4) and the main water hole (3) is 30-45 degrees, and the included angle of the water outlet hole (4) is adjusted according to the external cone angle of the molded line of the groove (2).
6. An inner cooled root slot forming mill as claimed in claim 1, wherein: the main water hole (3) is directly pressed and sintered when the cutter is used for making blanks, and the water outlet hole (4) is punched by an electric spark machine tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875064.7U CN220259659U (en) | 2023-07-17 | 2023-07-17 | Internal cooling type blade root groove forming milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875064.7U CN220259659U (en) | 2023-07-17 | 2023-07-17 | Internal cooling type blade root groove forming milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220259659U true CN220259659U (en) | 2023-12-29 |
Family
ID=89299244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321875064.7U Active CN220259659U (en) | 2023-07-17 | 2023-07-17 | Internal cooling type blade root groove forming milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220259659U (en) |
-
2023
- 2023-07-17 CN CN202321875064.7U patent/CN220259659U/en active Active
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