CN218080608U - Bearing inner ring inner hole forming cutter - Google Patents
Bearing inner ring inner hole forming cutter Download PDFInfo
- Publication number
- CN218080608U CN218080608U CN202221958732.8U CN202221958732U CN218080608U CN 218080608 U CN218080608 U CN 218080608U CN 202221958732 U CN202221958732 U CN 202221958732U CN 218080608 U CN218080608 U CN 218080608U
- Authority
- CN
- China
- Prior art keywords
- forming
- cutter
- edge
- knife edge
- outer ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007493 shaping process Methods 0.000 claims abstract description 9
- 230000007704 transition Effects 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Milling Processes (AREA)
Abstract
A bearing outer ring inner hole forming cutter comprises a cutter head part and a cutter handle part, wherein the cutter head part comprises a forming cutter edge I with a convex middle part, and the cross section of the forming cutter edge is arc-shaped and is used for forming a channel of a bearing outer ring inner hole; a second forming knife edge and a third forming knife edge are sequentially processed on two sides of the first forming knife edge, and the second forming knife edge and the third forming knife edge are columnar; the outer diameter of the forming knife edge III is larger than that of the forming knife edge II, namely a step is formed between the forming knife edge II and the forming knife edge III, and the step is used for forming a step groove of an inner hole of an outer ring of the bearing; and a fourth raised forming knife edge is machined on the third forming knife edge, and the section of the fourth forming knife edge is trapezoidal and is used for forming a groove of an inner hole of the bearing outer ring. Compared with the prior art, the utility model discloses a bearing inner race hole shaping cutter, with shaping edge of a knife processing on same cutter, through bearing inner race eccentric rotation, to its hole shaping, need not the tool changing, improve machining efficiency, ensure the concentricity in each groove in the hole simultaneously.
Description
Technical Field
The utility model relates to a bearing processing field specifically indicates a bearing inner race hole shaping cutter.
Background
When the bearing outer ring is machined, an inner hole of the bearing outer ring is formed through a cutter, in the existing machining process, a channel of a bearing and step grooves and grooves on two sides are machined through three cutters respectively, as shown in fig. 4, during machining, due to the fact that the three cutters need to be replaced, on one hand, machining time is long, and on the other hand, deviation is easily generated in concentricity of the inner hole of the outer ring.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is not enough to above-mentioned prior art, and provide a bearing inner race hole shaping cutter.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a bearing outer ring inner hole forming cutter comprises a cutter head part and a cutter handle part, wherein the cutter head part comprises a forming cutter edge I with a convex middle part, and the cross section of the forming cutter edge is arc-shaped and is used for forming a channel of a bearing outer ring inner hole; a second forming knife edge and a third forming knife edge are sequentially processed on two sides of the first forming knife edge, and the second forming knife edge and the third forming knife edge are columnar; the outer diameter of the forming cutter edge III is larger than that of the forming cutter edge II, namely a step is formed between the forming cutter edge II and the forming cutter edge III, and the step is used for forming a step groove of an inner hole of the outer ring of the bearing; and a fourth raised forming knife edge is machined on the third forming knife edge, and the section of the fourth forming knife edge is trapezoidal and is used for forming a groove of an inner hole of the bearing outer ring.
Furthermore, the second forming knife edge and the third forming knife edge are in transition through a first oblique chamfer, and the three end parts of the forming knife edge are in transition through a second oblique chamfer.
Further, the outer diameter of the cutter head part is smaller than the inner diameter of the bearing outer ring to be processed.
Furthermore, a chip groove is machined on one side of the cutter head part.
Further, the handle portion is cylindrical.
Furthermore, the whole cutter is made of K44 hard alloy steel.
Further, the surface of the cutter is provided with a boron nitride coating.
Compared with the prior art, the utility model discloses a bearing inner race hole shaping cutter, with shaping edge of a knife processing on same cutter, through bearing inner race eccentric rotation, to its hole shaping, need not the tool changing, improve machining efficiency, ensure the concentricity in each groove in the hole simultaneously.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a schematic structural view of the bearing outer ring after being processed by the cutter of the present invention;
FIG. 4 is a schematic view of the structure of the original tool;
the tool comprises a tool bit part 1, a tool shank part 2, a tool shank part 3, a forming tool edge I, a forming tool edge 4, a channel 5, a forming tool edge II, a forming tool edge III, a forming tool edge 7, a first inclined chamfer 8, a second inclined chamfer 9, a step 10, a step groove 11, a forming tool edge IV, a forming tool edge 12, a groove 13 and a chip removal groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below.
As shown in figures 1-4, a bearing outer ring inner hole forming cutter comprises a cutter head part 1 and a cutter handle part 2 connected with a cutter holder, wherein the cutter handle part 2 is cylindrical to realize quick assembly with the cutter holder, and the outer diameter of the cutter head part 1 is smaller than the inner diameter of a bearing outer ring to be processed, so that the cutter head part 1 can stretch into the bearing outer ring, and when the bearing outer ring rotates eccentrically, the inner hole of the outer ring is formed and processed.
The cutter head part 1 comprises a forming cutter edge I3 which is arranged at the middle part of the cutter head part and is convex, and the section of the forming cutter edge I3 is arc-shaped and is used for forming a channel 4 of an inner hole of an outer ring of the bearing; a forming knife edge II 5 and a forming knife edge III 6 are sequentially processed on two sides of the forming knife edge I3, main bodies of the forming knife edge II 5 and the forming knife edge III 6 are columnar, the forming knife edge II 5 and the forming knife edge III 6 are in transition through a first inclined chamfer 7, and the end part of the forming knife edge III 6 is in transition through a second inclined chamfer 8; the outer diameter of the forming knife edge III 6 is larger than that of the forming knife edge II 5, a step 9 is arranged between the forming knife edge II 5 and the forming knife edge III 6, the step 9 is used for forming a step groove 10 of an inner hole of an outer ring of the bearing, and the step groove 10 is used for installing a dustproof cover plate; and a convex forming knife edge four 11 is processed on the forming knife edge three 6, the section of the forming knife edge four 11 is in a trapezoid shape and used for forming a groove 12 of an inner hole of the bearing outer ring, and the groove 12 is used for installing a clamp spring to clamp the dustproof cover plate.
A chip groove 13 is formed in one side of the tool bit part 1, and the tail of the chip groove 3 is arc-shaped and discharges scrap iron in the machining process.
The whole tool is made of K44 hard alloy steel, so that the wear resistance of the tool is improved, and the service life of the tool is prolonged.
The surface of the cutter is provided with a boron nitride coating so as to improve the hardness of the cutter and enable the cutter to have higher oxidation temperature.
The present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications or changes without departing from the spirit of the present invention.
Claims (7)
1. The utility model provides a bearing inner race hole shaping cutter, includes tool bit portion and handle of a knife portion, its characterized in that: the cutter head part comprises a forming cutter edge I with a convex middle part, and the section of the forming cutter edge is arc-shaped and is used for forming a channel of an inner hole of the outer ring of the bearing; a second forming cutter edge and a third forming cutter edge are sequentially processed on two sides of the first forming cutter edge, and the second forming cutter edge and the third forming cutter edge are columnar; the outer diameter of the forming cutter edge III is larger than that of the forming cutter edge II, namely a step is formed between the forming cutter edge II and the forming cutter edge III, and the step is used for forming a step groove of an inner hole of the outer ring of the bearing; and a fourth raised forming knife edge is machined on the third forming knife edge, and the section of the fourth forming knife edge is trapezoidal and is used for forming a groove of an inner hole of the bearing outer ring.
2. The bearing outer ring inner hole forming cutter as claimed in claim 1, wherein: the second forming knife edge and the third forming knife edge are in transition through a first oblique chamfer, and the three end parts of the forming knife edge are in transition through a second oblique chamfer.
3. The bearing outer ring inner hole forming cutter as claimed in claim 1, wherein: the outer diameter of the tool bit part is smaller than the inner diameter of the bearing outer ring to be processed.
4. The bearing outer ring inner hole forming cutter as claimed in claim 1, wherein: a chip groove is machined in one side of the cutter head portion.
5. The bearing outer ring inner hole forming cutter as claimed in claim 1, wherein: the handle portion is cylindrical.
6. The bearing outer ring inner hole forming cutter as claimed in any one of claims 1 to 5, wherein: the whole cutter is made of K44 hard alloy steel.
7. The bearing outer ring inner hole forming cutter as claimed in any one of claims 1 to 5, wherein: and a boron nitride coating is arranged on the surface of the cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221958732.8U CN218080608U (en) | 2022-07-27 | 2022-07-27 | Bearing inner ring inner hole forming cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221958732.8U CN218080608U (en) | 2022-07-27 | 2022-07-27 | Bearing inner ring inner hole forming cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218080608U true CN218080608U (en) | 2022-12-20 |
Family
ID=84483860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221958732.8U Expired - Fee Related CN218080608U (en) | 2022-07-27 | 2022-07-27 | Bearing inner ring inner hole forming cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218080608U (en) |
-
2022
- 2022-07-27 CN CN202221958732.8U patent/CN218080608U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221220 |