CN219852437U - High-precision reaming and milling composite hard alloy reamer for nickel-based alloy - Google Patents
High-precision reaming and milling composite hard alloy reamer for nickel-based alloy Download PDFInfo
- Publication number
- CN219852437U CN219852437U CN202321338262.XU CN202321338262U CN219852437U CN 219852437 U CN219852437 U CN 219852437U CN 202321338262 U CN202321338262 U CN 202321338262U CN 219852437 U CN219852437 U CN 219852437U
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- Prior art keywords
- blade
- nickel
- edge
- bottom cutting
- cutter
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- 239000000956 alloy Substances 0.000 title claims abstract description 24
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000003801 milling Methods 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 21
- 238000005553 drilling Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model provides a high-precision reaming and milling composite hard alloy reamer for nickel-based alloys, which comprises a cutter handle, wherein the front end of the cutter handle is provided with a cutter tip, the rear end of the cutter tip is connected with an effective blade part, the cutter tip is provided with four bottom cutting blades, each bottom cutting blade comprises a groove bottom cutting blade and a center cutting blade, each effective blade part is provided with four spiral peripheral blades, four chip grooves are formed between the spiral peripheral blades, the rear end of each groove bottom cutting blade is correspondingly connected with the front end of each spiral peripheral blade, each center cutting blade is provided with a blade inclination angle a, and the blade inclination angle a is 5 degrees; the front side of the cutting edge of the central part is provided with a feed surface, and the feed surface is formed by direct interference of a second clearance surface. The bottom cutting edge is provided with a 5-degree edge inclination angle, so that the bottom cutting edge is guaranteed to have enough space for cooling and radiating a cutting part during cutting, and the bottom cutting edge is provided with two rear corner faces with milling capability, so that deviation of drilling can be well corrected, and the position degree and straightness are guaranteed.
Description
Technical Field
The utility model relates to the technical field of cutters, in particular to a high-precision reaming and milling composite hard alloy reamer for a nickel-based alloy.
Background
At present, the technology in the medical and aviation fields is gradually advanced to have higher and higher precision requirements on workpieces, and when common hole workpieces are processed, in order to meet the workpiece matching degree and improve the workpiece surface quality, a process mode of drilling holes by a drill bit and reaming fine holes is adopted. The reamer is limited by the structure, hole site correction cannot be achieved, and once hole site deviation occurs, product scrapping is caused, so that the reamer is a great difficulty in the current industry, and part of enterprises adopt boring technology, but the efficiency is low.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: in order to overcome the defects of the prior art for machining hole workpieces, the utility model provides a high-precision reaming and milling composite hard alloy reamer for nickel base alloys.
The technical scheme adopted for solving the technical problems is as follows: the high-precision reaming and milling composite hard alloy reamer for the nickel-based alloy comprises a cutter handle, wherein the front end of the cutter handle is provided with a cutter tip, the rear end of the cutter tip is connected with an effective blade part, four bottom cutting blades are arranged on the cutter tip, each bottom cutting blade comprises a groove bottom cutting blade and a center cutting blade, four spiral peripheral blades are arranged on the effective blade part, four chip removal grooves are formed between the spiral peripheral blades, the rear end of the groove bottom cutting blade is connected with the front end of the spiral peripheral blade in a one-to-one correspondence manner, and the center cutting blade is provided with a blade inclination angle a which is 5 degrees; the bottom cutting edge is a main cutting edge, the bottom cutting edge of the bottom cutting edge is formed by connecting a chip groove axial rake surface with a first rear tool surface of a tool nose, the spiral peripheral edge is a secondary cutting edge, and the chip groove radial rake surface is connected with a blade back.
Further, the spiral peripheral edge is provided with a blade back, the width of the blade back is 0.1 time of the blade diameter, and no relief angle is arranged on the blade back.
Further, the tip of the spiral peripheral edge has an inverted tapered edge portion.
Further, the bottom cutting edge is provided with a planar first flank surface having a bottom edge relief angle of 10 ° and a planar second flank surface having a bottom edge relief angle of 22 °.
Further, the chip groove is a left-handed chip groove, and the spiral rotation angle beta is 30 degrees.
Further, the feed angle γ of the center cutting edge is 26 °.
Further, in order to improve the clamping rigidity and the service life of the reamer, the total length of the cutter handle is 45-55 mm.
The beneficial effects of the utility model are as follows:
(1) The bottom cutting edge is provided with a 5-degree edge inclination angle, so that the bottom cutting edge is guaranteed to have enough space for cooling and radiating a cutting part during cutting, and the bottom cutting edge is provided with two rear corner faces with milling capability, so that deviation of drilling can be well corrected, and the position degree and straightness are guaranteed.
(2) The design of extremely narrow blade back and no relief angle reduces the cutting resistance of the blade, and simultaneously, the surface quality of the workpiece is greatly improved by extruding the wall surface of the workpiece.
(3) The 4 left-handed chip grooves with the angle of 30 degrees greatly reduce the cutting resistance, increase the chip removal space and reduce the contact between the processed surface and the scrap iron by the lower chip removal.
(4) The cutting feed angle is originally completed by a single step, the cutting feed direction and angle are changed through the second rear cutter face, the second rear cutter face and the cutting feed face are machined by one cutter, the machining process is simplified, and the cutting feed angle gamma is 26 degrees measured by taking a back line as a reference.
(5) The length of the traditional reamer is 36-45 mm, and the reamer adopts an lengthened handle design (about 30% longer than the traditional reamer), so that the clamping rigidity of the cutter is greatly improved, and the service life of the reamer is ensured.
Drawings
The utility model is further described below with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the cemented carbide reamer of the present utility model.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
Fig. 3 is a schematic view of the structure of the blade edge side.
Fig. 4 is a schematic view of a partial structure of the nose.
Fig. 5 is a schematic view of the bottom cutting edge of fig. 4.
In the figure: 1. the tool comprises a tool handle, 2, a tool nose, 3, an effective blade part, 4, a groove bottom cutting blade, 5, a spiral peripheral blade, 6, a chip groove, 7, an inverted cone blade part, 8, a first rear tool face, 9, a second rear tool face, 10, a tool back, 11, a feed face, 12 and a center cutting blade.
Detailed Description
The present utility model will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the utility model only by way of illustration, and therefore it shows only the constitution related to the utility model.
As shown in figures 1-5, the high-precision reaming and milling composite hard alloy reamer for the nickel-based alloy comprises a cutter handle 1, wherein the total length of the cutter handle 1 is 45-55 mm. The front end of the tool handle 1 is provided with a tool nose 2, the rear end of the tool nose 2 is connected with an effective blade part 3, four bottom cutting blades are arranged on the tool nose 2, and each bottom cutting blade comprises a groove bottom cutting blade 4 and a center cutting blade 12. Four spiral peripheral blades 5 are arranged on the effective blade part 3, and the front end of each spiral peripheral blade 5 is provided with an inverted conical blade part 7. Four chip grooves 6 are formed between the spiral peripheral edges 5, the chip grooves 6 are left-handed chip grooves, and the spiral rotation angle beta is 30 degrees. The rear ends of the bottom cutting edges 4 are connected with the front ends of the spiral peripheral edges 5 in a one-to-one correspondence manner, and as shown in fig. 2, the center cutting edge 12 is provided with an edge inclination angle a which is 5 degrees. The bottom cutting edge 4 is a main cutting edge, the groove bottom cutting edge 4 of the bottom cutting edge is formed by connecting a chip groove 6 with a first rear cutter surface 8 of the cutter point 2 along the axial direction of the cutter surface, the spiral peripheral edge 5 is a secondary cutting edge, and the groove bottom cutting edge is formed by connecting the chip groove 6 with a cutter back 10 along the radial direction of the cutter surface. The hard alloy reamer in the embodiment is mainly used for high-precision reaming and milling of nickel base alloys, the main cutting edge is mainly used for reaming, and the auxiliary cutting edge is mainly used for milling of hole walls.
As shown in fig. 3-5, the bottom cutting edge is provided with a planar first flank surface 8 having a bottom edge relief angle of 10 ° and a planar second flank surface 9 having a bottom edge relief angle of 22 °. The spiral peripheral blade 5 has a land 10, the width H of the land 10 is 0.1 times the blade diameter, and the land 10 has no relief angle. The front side of the center cutting edge 12 is provided with a feed surface 11, the feed angle gamma of the center cutting edge 12 is 26 degrees, the feed surface 11 is formed by direct interference of the second flank surface 9, and the feed surface 11 and the first flank surface 8 jointly form the center cutting edge 12.
While the foregoing is directed to the preferred embodiment of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (7)
1. A high-precision reaming and milling composite hard alloy reamer for nickel-based alloy is characterized in that: the cutter comprises a cutter handle, wherein the front end of the cutter handle is provided with a cutter tip, the rear end of the cutter tip is connected with an effective blade part, four bottom cutting blades are arranged on the cutter tip, each bottom cutting blade comprises a groove bottom cutting blade and a center cutting blade, four spiral peripheral blades are arranged on the effective blade part, four chip grooves are formed between the spiral peripheral blades, the rear ends of the groove bottom cutting blades are connected with the front ends of the spiral peripheral blades in a one-to-one correspondence manner, and each center cutting blade is provided with a blade inclination angle a which is 5 degrees; the front side of the cutting edge of the central part is provided with a feed surface, and the feed surface is formed by direct interference of a second rear tool surface.
2. The high-precision reaming and milling composite cemented carbide reamer for nickel-base alloys according to claim 1, wherein: the spiral peripheral blade is provided with a blade back, the width of the blade back is 0.1 time of the blade diameter, and no relief angle is arranged on the blade back.
3. The high-precision reaming and milling composite cemented carbide reamer for nickel-base alloys according to claim 1, wherein: the front end of the spiral peripheral edge is provided with an inverted conical edge part.
4. The high-precision reaming and milling composite cemented carbide reamer for nickel-base alloys according to claim 1, wherein: the bottom cutting edge is provided with a planar first flank surface having a bottom edge relief angle of 10 degrees and a planar second flank surface having a bottom edge relief angle of 22 degrees.
5. The high-precision reaming and milling composite cemented carbide reamer for nickel-base alloys according to claim 1, wherein: the chip groove is a left-handed chip groove, and the rotation angle beta is 30 degrees.
6. The high-precision reaming and milling composite cemented carbide reamer for nickel-base alloys according to claim 1, wherein: the feed angle gamma of the cutting edge of the central part is 26 degrees.
7. The high-precision reaming and milling composite cemented carbide reamer for nickel-base alloys according to claim 1, wherein: the total length of the cutter handle is 45-55 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321338262.XU CN219852437U (en) | 2023-05-30 | 2023-05-30 | High-precision reaming and milling composite hard alloy reamer for nickel-based alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321338262.XU CN219852437U (en) | 2023-05-30 | 2023-05-30 | High-precision reaming and milling composite hard alloy reamer for nickel-based alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219852437U true CN219852437U (en) | 2023-10-20 |
Family
ID=88347653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321338262.XU Active CN219852437U (en) | 2023-05-30 | 2023-05-30 | High-precision reaming and milling composite hard alloy reamer for nickel-based alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219852437U (en) |
-
2023
- 2023-05-30 CN CN202321338262.XU patent/CN219852437U/en active Active
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