CN220387991U - Inner cooling step forming drill for processing inner hole of aluminum alloy motor shell - Google Patents
Inner cooling step forming drill for processing inner hole of aluminum alloy motor shell Download PDFInfo
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- CN220387991U CN220387991U CN202321403917.7U CN202321403917U CN220387991U CN 220387991 U CN220387991 U CN 220387991U CN 202321403917 U CN202321403917 U CN 202321403917U CN 220387991 U CN220387991 U CN 220387991U
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- blade
- inner hole
- forming
- aluminum alloy
- cutting
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 19
- 238000001816 cooling Methods 0.000 title claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims abstract description 32
- 230000007704 transition Effects 0.000 claims abstract description 7
- 238000003754 machining Methods 0.000 claims description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000003801 milling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model discloses an internal cooling step forming drill for processing an inner hole of an aluminum alloy motor shell, which comprises a blade part and a handle part, wherein a transition angle is arranged at the tail part of the blade part and close to the handle part, the blade part is provided with a Kong Deqie flat blade, an inner hole forming blade, an inner hole side blade, an end surface deburring blade, a knife back, a spiral chip groove and a chip groove, the bottom cutting flat blade is arranged at the forefront end of the blade part and is symmetrically arranged by the center of the end surface of the blade part, and the chip groove is arranged between adjacent bottom cutting plane blades; the tool back extends to the afterbody of cutting part from hole bottom cutting flat edge, and spiral chip groove sets up in the both sides of tool back, be equipped with radial rake on the spiral chip groove, radial rake is 5. The tool can realize in-hole deburring, in-hole circular arc forming and orifice deburring, does not need to replace the tool, is beneficial to improving the cutting efficiency of drilling and greatly saves the cost of the tool.
Description
Technical Field
The utility model belongs to the technical field of cutters, and particularly relates to an internal cooling step forming drill for processing an inner hole of an aluminum alloy motor casing.
Background
When the inner hole of the aluminum alloy shell is machined, 2 cutters are needed, so that the machining cost is increased, the machining time is too long due to the replacement of the cutters, the production efficiency cannot be improved, and the machining beat of a customer is seriously influenced. Because of different processes, multiple clamping and positioning are needed, and positioning errors exist, so that the precision of the whole product is affected, and the quality of the product cannot meet the requirements; when the cutter is used for processing, the cutter is not sharp, so that the inner hole is scratched, and the processed hole is burred.
Disclosure of Invention
The utility model aims to: aiming at the problems and the defects in the prior art, the utility model aims to provide a high-precision forming insert milling cutter for processing an inner hole of an aluminum alloy motor shell. The tool can realize in-hole deburring, in-hole circular arc forming and orifice deburring, does not need to replace the tool, is beneficial to improving the cutting efficiency of drilling and greatly saves the cost of the tool.
The technical scheme is as follows: in order to achieve the purpose, the inner cooling step forming drill for processing the inner hole of the aluminum alloy motor shell comprises a blade part and a handle part, wherein a transition angle is arranged at the tail part of the blade part and close to the handle part, the blade part is provided with a Kong Deqie flat blade, an inner hole forming blade, an inner hole side blade, an end surface deburring blade, a tool back, a spiral chip groove and a chip groove, the bottom cutting flat blade is arranged at the foremost end of the blade part and is symmetrically arranged by the center of the end surface of the blade part, and the chip groove is arranged between the adjacent bottom cutting flat blades; the back of the cutter extends to the afterbody of cutting part from hole bottom cutting flat edge, and spiral chip groove sets up in the both sides of back of the cutter, be equipped with radial rake on the spiral chip groove, radial rake is 5.
Further, the hole bottom cutting flat edge is provided with an end face relief angle I and an end face relief angle II. The design of the first end face relief angle increases the strength of the cutting edge, and the second end face relief angle is used for interference elimination, so that the Kong Deqie flat machining effect is guaranteed.
Further, the inner hole forming blade comprises a first inner hole forming blade and a second inner hole forming blade, wherein the first inner hole forming blade is provided with a first R relief angle and a second R relief angle; the included angle formed by the second inner hole forming blade and the horizontal central axis of the blade part is 90 degrees, and the second inner hole forming blade is provided with a first forming relief angle and a second forming relief angle. The design of the first forming relief angle and the first R relief angle ensures that the cutting edge has strength, so that the rotation of the cutter can not interfere, and the machined surface is cut. The second forming relief angle and the second R relief angle can remove interference and ensure that the processed surface is not cut. The width of the first formed rear angle and the width of the first formed rear angle are larger and better on the premise of not interfering with each other, and the concrete cutting edge strength is ensured. The width of the second forming relief angle and the second R relief angle interfere with CNC manufacture naturally generated according to the edge vane width dividing knife.
Further, the inner hole side blade comprises an inner cooling side blade I and an inner hole side blade II, wherein the length of the inner hole side blade I is larger than that of the inner hole side blade II, and the inner hole side blade I and the inner hole side blade II are arranged in a step mode.
Further, the included angle formed by the end surface deburring blade and the horizontal central axis of the blade part is 45 degrees.
Further, the length of the first inner hole side edge is larger than that of the second inner hole side edge, and the first inner hole side edge and the second inner hole side edge are arranged in a step mode.
Further, the included angle formed by the transition angle and the horizontal central axis of the blade part is 45 degrees.
Further, the knife back is provided with a cutting edge.
Further, the blade diameter of the blade tail is larger than the handle diameter of the handle.
The technical scheme can be seen that the beneficial effects of the utility model are as follows:
(1) The high-precision forming insert milling cutter for processing the inner hole of the aluminum alloy motor shell can realize the integration of multiple functions of in-hole deburring, in-hole circular arc forming, orifice deburring and the like, combines all the forming sizes of workpieces, workpiece deburring and blade diameters for processing, improves the processing beat of a cutter and the service life of the cutter, and greatly saves the processing cost.
(2) According to the high-precision forming insert milling cutter for processing the inner hole of the aluminum alloy motor shell, disclosed by the utility model, the radial rake angle structural design of the spiral groove of the blade part can improve the sharpness of the cutter, and when a workpiece is processed, the good roughness of the surface is ensured, the burr treatment can be well performed, and the surface quality of the workpiece is ensured.
(3) According to the high-precision forming insert milling cutter for processing the inner hole of the aluminum alloy motor shell, the chip flute plays roles of chip removal guiding and partial chip breaking, and the chip flute cooperate, so that the chip removal effect of a cutter is improved, and the practical service life of the cutter is prolonged.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a partial schematic view of a blade;
FIG. 3 is a schematic end view of a blade;
fig. 4 is a partial enlarged view of the radial rake angle.
Detailed Description
The utility model is further elucidated below in connection with the drawings and the specific embodiments.
The internal cooling step forming drill for processing the inner hole of the aluminum alloy motor shell comprises a blade part 1 and a handle part 2, wherein a transition angle 3 is arranged at the position, close to the handle part 2, of the tail part of the blade part 1, the blade part 1 is provided with a Kong Deqie flat blade 11, an inner hole forming blade 12, an inner hole side blade 13, an end surface deburring blade 14, a tool back 15, a spiral chip groove 16 and a chip groove 17, the hole bottom cutting flat blade 11 is arranged at the foremost end of the blade part 1, the chip groove 17 is symmetrically arranged by the center of the end surface of the blade part, and the chip groove 17 is arranged between the adjacent hole bottom cutting flat blades 17; the back 15 extends from the hole bottom cutting flat edge 11 to the tail of the edge part 1, spiral chip grooves 16 are arranged on two sides of the back 15, radial rake angles 161 are arranged on the spiral chip grooves 16, and the radial rake angles 161 are 5 degrees.
The hole bottom cutting flat edge 11 is provided with a first end face relief angle 111 and a second end face relief angle 112 in the embodiment.
The inner hole forming blade 12 in the embodiment comprises a first inner hole forming blade 121 and a second inner hole forming blade 122, wherein the first inner hole forming blade 121 is provided with a first R relief angle 1211 and a second R relief angle 1212; the included angle between the second inner hole forming blade 122 and the horizontal central axis of the blade part 1 is 90 degrees, and the second inner hole forming blade 122 is provided with a first forming relief angle 1221 and a second forming relief angle 1222.
In this embodiment, the inner hole side blade 13 includes a first inner cooling side blade 131 and a second inner hole side blade 132, where the first inner hole side blade 131 has a length greater than that of the second inner hole side blade 132, and the first inner hole side blade and the second inner hole side blade are arranged in a step.
The angle between the end surface deburring blade 14 and the horizontal central axis of the blade portion 1 in this embodiment is 45 °. The end surface deburring blade 14 is used for deburring the orifice, so that the surface quality of the workpiece is ensured.
In this embodiment, the length of the first inner hole side edge 131 is greater than the length of the second inner hole side edge 132, and the two edges are arranged in steps.
In this embodiment, the angle formed by the transition angle 3 and the horizontal central axis of the blade part 1 is 45 °.
In this embodiment, the back 15 is provided with a margin 151.
In this embodiment, the blade diameter of the tail of the blade part 1 is larger than the shank diameter of the shank part 2.
The examples are intended to illustrate the utility model and not to limit its scope, and after reading the utility model, various equivalents of the utility model by those skilled in the art are within the scope of the utility model as defined by the claims appended hereto.
Claims (8)
1. An internal cooling step forming drill for processing an inner hole of an aluminum alloy motor shell is characterized in that: the novel cutting tool comprises a cutting part (1) and a handle part (2), wherein a transition angle (3) is formed at the position, close to the handle part (2), of the tail part of the cutting part (1), a Kong Deqie flat cutting edge (11), an inner hole forming cutting edge (12), an inner hole side cutting edge (13), an end surface deburring cutting edge (14), a tool back (15), a spiral chip removal groove (16) and a chip groove (17) are arranged on the cutting part (1), hole bottom cutting Ping Ren (11) is formed at the foremost end of the cutting part (1), the end surface center of the cutting part (1) is symmetrically arranged, and the chip groove (17) is formed between the adjacent Kong Deqie flat cutting edges (11); the tool back (15) extends from the hole bottom cut Ping Ren (11) to the tail part of the blade part (1), the spiral chip grooves (16) are arranged on two sides of the tool back (15), radial rake angles (161) are arranged on the spiral chip grooves (16), and the radial rake angles (161) are 5 degrees.
2. The internally-cooled step forming drill for machining an inner hole of an aluminum alloy motor casing according to claim 1, wherein: the hole undercut Ping Ren (11) is provided with an end face relief angle one (111) and an end face relief angle two (112).
3. The internally-cooled step forming drill for machining an inner hole of an aluminum alloy motor casing according to claim 1, wherein: the inner hole forming blade (12) comprises a first inner hole forming blade (121) and a second inner hole forming blade (122), wherein a first R relief angle (1211) and a second R relief angle (1212) are arranged on the first inner hole forming blade (121); the included angle formed by the inner hole forming blade II (122) and the horizontal central axis of the blade part (1) is 90 degrees, and the inner hole forming blade II (122) is provided with a forming relief angle I (1221) and a forming relief angle II (1222).
4. The internally-cooled step forming drill for machining an inner hole of an aluminum alloy motor casing according to claim 1, wherein: the inner hole side blade (13) comprises an inner cooling side blade I (131) and an inner hole side blade II (132), wherein the length of the inner hole side blade I (131) is larger than that of the inner hole side blade II (132), and the inner hole side blade I and the inner hole side blade II are arranged in a step mode.
5. The internally-cooled step forming drill for machining an inner hole of an aluminum alloy motor casing according to claim 1, wherein: the included angle between the end surface deburring blade (14) and the horizontal central axis of the blade part (1) is 45 degrees.
6. The internally-cooled step forming drill for machining an inner hole of an aluminum alloy motor casing according to claim 1, wherein: the included angle formed by the transition angle (3) and the horizontal central axis of the blade part (1) is 45 degrees.
7. The internally-cooled step forming drill for machining an inner hole of an aluminum alloy motor casing according to claim 1, wherein: the knife back (15) is provided with a cutting edge (151).
8. The internally-cooled step forming drill for machining an inner hole of an aluminum alloy motor casing according to claim 1, wherein: the blade diameter of the tail part of the blade part (1) is larger than the handle diameter of the handle part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321403917.7U CN220387991U (en) | 2023-06-05 | 2023-06-05 | Inner cooling step forming drill for processing inner hole of aluminum alloy motor shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321403917.7U CN220387991U (en) | 2023-06-05 | 2023-06-05 | Inner cooling step forming drill for processing inner hole of aluminum alloy motor shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220387991U true CN220387991U (en) | 2024-01-26 |
Family
ID=89614472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321403917.7U Active CN220387991U (en) | 2023-06-05 | 2023-06-05 | Inner cooling step forming drill for processing inner hole of aluminum alloy motor shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220387991U (en) |
-
2023
- 2023-06-05 CN CN202321403917.7U patent/CN220387991U/en active Active
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