CN112620758A - Tool and method for machining inner fillet of squirrel cage - Google Patents
Tool and method for machining inner fillet of squirrel cage Download PDFInfo
- Publication number
- CN112620758A CN112620758A CN202011490405.XA CN202011490405A CN112620758A CN 112620758 A CN112620758 A CN 112620758A CN 202011490405 A CN202011490405 A CN 202011490405A CN 112620758 A CN112620758 A CN 112620758A
- Authority
- CN
- China
- Prior art keywords
- cutter
- squirrel cage
- squirrel
- cage
- processing
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
- B23C3/126—Portable devices or machines for chamfering edges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
A cutter and a processing method for processing a squirrel cage fillet relate to the technical field of machining. The squirrel cage chamfering machine aims to solve the problem that a squirrel cage is broken in the using process due to the fact that burrs are manually removed and smooth transition of chamfering cannot be achieved in the traditional technology. A cutter bit is arranged at one end of a cutter bar, the sections of the cutter bar and the cutter bit are circular, a cutting edge is arranged at the joint of the bottom of the cutter bit and the end face of the cutter bar, and the included angle between the cutting edge and the axis of the cutter bar is 120 degrees, so that smooth transition of chamfering is realized, and the phenomenon that the processed squirrel cage is broken in the use process is avoided; in the processing time, the initial position of the cutter is 1 mm lower than that of the squirrel-cage milling cutter, the cutter deviates 1 mm to the squirrel-cage side, and the cutter is pulled upwards by 0.12 mm-0.14 mm, so that the roundness of the inner corner of the squirrel-cage is ensured. The invention is suitable for processing the inner fillet of the squirrel cage.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a tool for machining a squirrel cage fillet and a machining method.
Background
At present, the novel bearing structural design of aviation bearing industry has many characteristics such as complicated, integration, integrate, wherein with the squirrel cage structure comparatively more commonly, outer chamfer accessible machining center carries out production and processing during the squirrel cage processing, and interior chamfer generally only adopts the manual deburring of getting rid of, can't realize chamfer rounding off. With the continuous progress of aerospace industry, the requirements on the bearing are gradually improved, and through simulation research, a sharp point exists at the chamfer of a squirrel cage part, so that stress concentration is easy to occur, and the risk of fracture exists in the use process.
In conclusion, the traditional technology adopts manual deburring, so that smooth transition of chamfers cannot be realized, and the squirrel cage is broken in the using process.
Disclosure of Invention
The invention provides a tool for machining an inner corner of a squirrel cage and a machining method, aiming at solving the problem that the squirrel cage is fractured in the use process due to the fact that burrs are manually removed and smooth transition of chamfers cannot be realized in the traditional technology.
The invention relates to a cutter for processing a squirrel cage inner fillet, which comprises a cutter rod and a cutter head; a cutter bit is arranged at one end of the cutter bar, the sections of the cutter bar and the cutter bit are circular, a cutting edge is arranged at the joint of the bottom of the cutter bit and the end face of the cutter bar, and an included angle a is formed between the cutting edge and the axis of the cutter bar;
further, a is 120 °;
furthermore, a fillet with the radius R equal to 0.4 is machined between the edge of the bottom of the cutting edge and the outer surface of the cutter bar;
further, the diameter of the section of the cutter bar is smaller than that of the section of the cutter head;
further, the length of the cutter bar is 48 mm;
the invention relates to a processing method for processing a squirrel cage inner fillet, which comprises the following specific steps:
step one, carrying out three-dimensional modeling on a squirrel cage, generating a hard-milling squirrel cage program through the three-dimensional modeling, and selecting a specific cutter;
step two, adjusting a hard-milling squirrel cage inner chamfering program according to a squirrel cage processing program, wherein the fall and offset of a cutter are mainly required to be noticed;
step three, trial processing of products, and adjustment of the feed size;
further, the fall and offset of the tool in the second step specifically include:
step two, enabling the initial position of the cutter to be lower than the squirrel-cage milling cutter by 1 mm;
secondly, the cutter deviates 1 mm to the squirrel cage side;
further, the specific steps of adjusting the feed size in the third step are as follows: and (5) upwards pulling the cutter to 0.12-0.14 mm.
Compared with the prior art, the invention has the following beneficial effects:
the invention overcomes the defects of the prior art, a cutter bit is arranged at one end of a cutter bar, the sections of the cutter bar and the cutter bit are circular, a cutting edge is arranged at the joint of the bottom of the cutter bit and the end face of the cutter bar, and the included angle between the cutting edge and the axis of the cutter bar is 120 degrees, so that the smooth transition of chamfering is realized, and the phenomenon that the processed squirrel cage is broken in the use process is avoided.
Secondly, the defects of the prior art are overcome, in the processing time, the initial position of the cutter is lower than the squirrel-cage milling cutter by 1 mm, the cutter deviates to the squirrel-cage side by 1 mm, the cutter is pulled upwards by 0.12 mm-0.14 mm, and the roundness of the inner fillet of the squirrel-cage is ensured.
The invention is suitable for processing the inner fillets of the squirrel cages of various sizes and is convenient to use.
Drawings
FIG. 1 is a front view of a tool for machining squirrel cage fillets in accordance with the present invention;
fig. 2 is an enlarged partial view of a portion a of a tool for machining a squirrel cage fillet according to the present invention.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 and 2, and the cutter for processing the internal fillet of the squirrel cage in the embodiment comprises a cutter rod 1 and a cutter head 2; a cutter head 2 is arranged at one end of the cutter bar 1, the sections of the cutter bar 1 and the cutter head 2 are both circular, a cutting edge is arranged at the joint of the bottom of the cutter head 2 and the end face of the cutter bar 1, and an included angle a is formed between the cutting edge and the axis of the cutter bar 1;
this embodiment, the one end that adopts the cutter arbor is equipped with the tool bit, and the cross-section of cutter arbor and tool bit is circular, and tool bit bottom and cutter arbor terminal surface junction are the cutting edge, and the contained angle between the axis of cutting edge and cutter arbor is a, realizes chamfer rounding off, avoids the squirrel cage breaking phenomenon of taking place in the use of processing out.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1 and 2, and the present embodiment is a further limitation of the tool according to the first embodiment, and the tool according to the present embodiment is used for processing a fillet of a squirrel cage, where a is 120 °;
according to the specific embodiment, the included angle between the cutting edge and the axis of the cutter bar is 120 degrees, so that chamfering smooth transition is realized, and the phenomenon that the processed squirrel cage is broken in the using process is avoided.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1 and 2, and is further limited to the tool according to the first embodiment, and the tool according to the present embodiment is used for processing a squirrel cage fillet, and a fillet with a radius R equal to 0.4 is processed between the bottom edge of the cutting edge and the outer surface of the tool holder 1.
The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1 and 2, and is further limited to the tool according to the first embodiment, the tool according to the present embodiment is used for machining a squirrel cage fillet, and the diameter of the section of the tool holder 1 is smaller than that of the section of the tool bit 2;
in the specific embodiment, the diameter of the section of the cutter bar 1 is smaller than that of the section of the cutter head 2, so that the inner fillet of the squirrel cage can be conveniently processed.
The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1 and 2, and is further limited to the tool according to the first embodiment, and the tool for machining a squirrel cage fillet according to the present embodiment has a length of 48mm in the tool holder 1.
The sixth specific implementation mode: the embodiment is described with reference to fig. 1 and 2, and the specific method for processing the internal fillet of the squirrel cage in the embodiment is as follows:
step one, carrying out three-dimensional modeling on a squirrel cage, generating a hard-milling squirrel cage program through the three-dimensional modeling, and selecting a specific cutter;
step two, adjusting a hard-milling squirrel cage inner chamfering program according to a squirrel cage processing program, wherein the fall and offset of a cutter are mainly required to be noticed;
and step three, trial processing of the product, and adjustment of the feed size.
The seventh embodiment: the present embodiment is described with reference to fig. 1 and 2, and the present embodiment further defines the processing method according to the sixth embodiment, and the processing method for processing the squirrel cage fillet according to the present embodiment includes the following specific steps:
step two, enabling the initial position of the cutter to be lower than the squirrel-cage milling cutter by 1 mm;
secondly, the cutter deviates 1 mm to the squirrel cage side;
according to the specific embodiment, the starting position of the cutter is 1 mm lower than the squirrel-cage milling cutter, and the cutter deviates 1 mm to the squirrel-cage side, so that the roundness of the inner corner of the squirrel-cage is ensured.
The specific implementation mode is eight: the present embodiment is described with reference to fig. 1 and 2, and the present embodiment further defines the processing method according to the sixth embodiment, and the processing method for processing the internal corner of the squirrel cage according to the present embodiment specifically includes the following steps of: and (5) upwards pulling the cutter to 0.12-0.14 mm.
Claims (8)
1. A cutter for processing a squirrel cage fillet is characterized in that: comprises a cutter bar (1) and a cutter head (2); one end of the cutter bar (1) is provided with a cutter head (2), the cross sections of the cutter bar (1) and the cutter head (2) are circular, the joint of the bottom of the cutter head (2) and the end face of the cutter bar (1) is a cutting edge, and an included angle between the cutting edge and the axis of the cutter bar (1) is a.
2. A tool for machining squirrel cage fillets as claimed in claim 1, wherein: and a is 120 degrees.
3. A tool for machining squirrel cage fillets as claimed in claim 1, wherein: a fillet with the radius R equal to 0.4 is machined between the edge of the bottom of the cutting edge and the outer surface of the cutter bar (1).
4. A tool for machining squirrel cage fillets as claimed in claim 3, wherein: the diameter of the section of the cutter bar (1) is smaller than that of the section of the cutter head (2).
5. Tool for machining squirrel cage fillets according to claim 4, characterized in that: the length of the cutter bar (1) is 48 mm.
6. A processing method for processing a squirrel cage fillet is characterized in that: the specific method comprises the following steps:
step one, carrying out three-dimensional modeling on a squirrel cage, generating a hard-milling squirrel cage program through the three-dimensional modeling, and selecting a specific cutter;
step two, adjusting a hard-milling squirrel cage inner chamfering program according to a squirrel cage processing program, wherein the fall and offset of a cutter are mainly required to be noticed;
and step three, trial processing of the product, and adjustment of the feed size.
7. A method for machining squirrel cage fillets according to claim 6, wherein: the second step is that the fall and offset of the cutter are specifically as follows:
step two, enabling the initial position of the cutter to be lower than the squirrel-cage milling cutter by 1 mm;
and secondly, the cutter deviates 1 mm towards the squirrel cage side.
8. A method for machining squirrel cage fillets according to claim 6, wherein: the third step is that the specific steps of adjusting the feed size are as follows: and (5) upwards pulling the cutter to 0.12-0.14 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011490405.XA CN112620758A (en) | 2020-12-16 | 2020-12-16 | Tool and method for machining inner fillet of squirrel cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011490405.XA CN112620758A (en) | 2020-12-16 | 2020-12-16 | Tool and method for machining inner fillet of squirrel cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112620758A true CN112620758A (en) | 2021-04-09 |
Family
ID=75313795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011490405.XA Withdrawn CN112620758A (en) | 2020-12-16 | 2020-12-16 | Tool and method for machining inner fillet of squirrel cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112620758A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648288A (en) * | 2009-08-28 | 2010-02-17 | 常州宝隆冶金设备制造有限公司 | Processing method of ribbonfil root circular arc |
| KR20100093021A (en) * | 2010-08-04 | 2010-08-24 | 장두한 | Rotary cutter for rounding and chamfering |
| CN201735857U (en) * | 2010-08-11 | 2011-02-09 | 西安煤矿机械有限公司 | Processing cutter used for manufacturing circular arc chamfer angles in shape like duplex rack-rail gear teeth |
| CN202278238U (en) * | 2011-09-14 | 2012-06-20 | 西安飞机工业（集团）有限责任公司 | Numerically-controlled arc milling cutter |
| CN103331467A (en) * | 2013-06-08 | 2013-10-02 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for machining cambered arc structural part |
| CN104191007A (en) * | 2014-07-30 | 2014-12-10 | 常州创伟工具制造有限公司 | Concave arc milling cutter |
| CN104511636A (en) * | 2013-10-08 | 2015-04-15 | 常州苏科工具有限公司 | Cutter used for formed contour machining |
| CN105252057A (en) * | 2015-10-29 | 2016-01-20 | 北京航科发动机控制系统科技有限公司 | Numerical control machining deburring method |
| CN108080688A (en) * | 2016-11-22 | 2018-05-29 | 四川法斯特机械制造有限责任公司 | A kind of molding cutter for processing bottom hole R chamferings and thus processing R chamfering methods |
| CN208976927U (en) * | 2018-09-25 | 2019-06-14 | 东莞市拓邦硕实业有限公司 | A kind of upper and lower inner chamfer milling cutter of whole hard alloy |
-
2020
- 2020-12-16 CN CN202011490405.XA patent/CN112620758A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648288A (en) * | 2009-08-28 | 2010-02-17 | 常州宝隆冶金设备制造有限公司 | Processing method of ribbonfil root circular arc |
| KR20100093021A (en) * | 2010-08-04 | 2010-08-24 | 장두한 | Rotary cutter for rounding and chamfering |
| CN201735857U (en) * | 2010-08-11 | 2011-02-09 | 西安煤矿机械有限公司 | Processing cutter used for manufacturing circular arc chamfer angles in shape like duplex rack-rail gear teeth |
| CN202278238U (en) * | 2011-09-14 | 2012-06-20 | 西安飞机工业（集团）有限责任公司 | Numerically-controlled arc milling cutter |
| CN103331467A (en) * | 2013-06-08 | 2013-10-02 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for machining cambered arc structural part |
| CN104511636A (en) * | 2013-10-08 | 2015-04-15 | 常州苏科工具有限公司 | Cutter used for formed contour machining |
| CN104191007A (en) * | 2014-07-30 | 2014-12-10 | 常州创伟工具制造有限公司 | Concave arc milling cutter |
| CN105252057A (en) * | 2015-10-29 | 2016-01-20 | 北京航科发动机控制系统科技有限公司 | Numerical control machining deburring method |
| CN108080688A (en) * | 2016-11-22 | 2018-05-29 | 四川法斯特机械制造有限责任公司 | A kind of molding cutter for processing bottom hole R chamferings and thus processing R chamfering methods |
| CN208976927U (en) * | 2018-09-25 | 2019-06-14 | 东莞市拓邦硕实业有限公司 | A kind of upper and lower inner chamfer milling cutter of whole hard alloy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2868516Y (en) | Countersink-working and shaping cutter | |
| CN104295608A (en) | Joint bearing inner ring processing method | |
| CN203044927U (en) | Cut-off tool capable of finishing chamfering simultaneously | |
| CN206677204U (en) | A kind of integrated coarse and fine boring cutting tool | |
| CN112620758A (en) | Tool and method for machining inner fillet of squirrel cage | |
| CN109590525B (en) | Special composite end mill for mobile phone middle frame and mobile phone middle frame milling method | |
| CN107020486A (en) | A kind of processing method of welded type lengthened reamer | |
| CN209867559U (en) | Multi-blade left-handed high-spiral push reamer | |
| CN208178533U (en) | Milling cutter | |
| CN106312091A (en) | Method for machining spherical match body on numerically-controlled lathe | |
| CN103272949B (en) | Machining method for female die with stepped holes | |
| CN108127335B (en) | Method for machining taper pin hole | |
| CN204621103U (en) | A kind of special boring cutter of processing graphite part elongated bore | |
| CN217570906U (en) | R-shaped cutter for processing crucible | |
| CN205147413U (en) | Straight drill of burr function of taking | |
| CN210789369U (en) | Drill bit capable of reducing burrs and drilling machine assembly | |
| CN212495620U (en) | Taper round nose knife | |
| CN220698428U (en) | Cutter for efficiently removing burrs of small-hole cross holes | |
| CN215966709U (en) | General type deep cavity chamfer cutter | |
| CN212885085U (en) | Side opening chamfering machining tool | |
| CN111085821B (en) | Inner hole machining method of inner ball cage | |
| CN216680546U (en) | Composite reamer | |
| CN203695991U (en) | Multifunctional highlight rose reamer | |
| CN202715873U (en) | End mill for processing thin-walled parts | |
| CN216065691U (en) | Cutter for ensuring roughness of conical surface forming part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210409 |
|
| WW01 | Invention patent application withdrawn after publication |