CN112893880B - Method for processing shallow groove on retaining ring - Google Patents
Method for processing shallow groove on retaining ring Download PDFInfo
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- CN112893880B CN112893880B CN202110098723.XA CN202110098723A CN112893880B CN 112893880 B CN112893880 B CN 112893880B CN 202110098723 A CN202110098723 A CN 202110098723A CN 112893880 B CN112893880 B CN 112893880B
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- shallow groove
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- retaining ring
- turning tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/06—Profile cutting tools, i.e. forming-tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/28—Details of hard metal, i.e. cemented carbide
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a method for processing a shallow groove on a retaining ring. The method comprises the following steps: the method comprises the following steps: the retaining ring is fixed on a rotating shaft of the lathe, the round-head turning tool is fixed on the cutter, and the round-head turning tool is aligned to the end, close to the outer side, of the shallow groove to be machined; step two: the protective ring rotates at the rotation speed of 33-45 r/min along the axial center line; the round head of the round head turning tool is axially close to the shallow groove, and the back bite of the close round head turning tool is 0.1-0.2 mm; cutting the shallow slot by 0.4mm unilateral clearance on the round-head lathe tool, and feeding at the feeding speed of 0.1 mm/min-0.12 mm/min along the radial direction of the retaining ring; the shallow groove on the retaining ring is processed and formed, the surface roughness of the shallow groove is Ra1.6-Ra3.2, and the requirement that the surface roughness of the shallow groove reaches Ra3.2 is met; the problem that the surface of the profiling feed shallow groove is corrugated by using a non-standard cutter according to the shape of the shallow groove in the prior art is solved, the secondary grinding processing of the surface of the shallow groove by using gauze is avoided, and the processing efficiency is improved; step three: the round-head lathe tool ascends along the direction of being far away from the shallow groove along the axial direction and then retreats from the upper part of the shallow groove.
Description
Technical Field
The invention relates to a method for machining a shallow groove in a retaining ring, and belongs to the technical field of part machining.
Background
In order to meet some requirements, a shallow groove needs to be machined on a part retaining ring of an aeroengine, as shown in fig. 1, because the shallow groove is poor in openness, meanwhile, the axial sunken depth of the shallow groove is 0.3mm, and the height of the shallow groove above the axial direction is only 4.7mm, a common cutter cannot enter due to poor openness, in the prior art, when the shallow groove is machined, a non-standard cutter needs to be manufactured to perform profiling feed according to the shape of the shallow groove, after the shallow groove is machined by the non-standard cutter through the profiling feed, the surface of the shallow groove can have ripples, so that the roughness of the surface of the shallow groove hardly meets the requirement of ra3.2, and the surface of the shallow groove needs to be subjected to secondary grinding by using gauze, so that the machining efficiency of the shallow groove is reduced.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for processing a shallow groove on a retaining ring.
The invention also provides a round-head turning tool for processing the shallow groove on the retaining ring.
The invention is realized by the following technical scheme.
The invention provides a method for processing a shallow groove on a retaining ring. The method comprises the following steps:
the method comprises the following steps: the retaining ring is fixed on a rotating shaft of the lathe, the round-head turning tool is fixed on the cutter, and the round-head turning tool is aligned to the end, close to the outer side, of the shallow groove to be machined;
step two: the protective ring rotates at the rotation speed of 33-45 r/min along the axial center line; the round head of the round head turning tool is axially close to the shallow groove, and the back bite of the close round head turning tool is 0.1 mm-0.2 mm; cutting the shallow slot by 0.4mm unilateral clearance on the round-head lathe tool, and feeding at the feeding speed of 0.1 mm/min-0.12 mm/min along the radial direction of the retaining ring; forming shallow grooves on the retaining ring;
step three: the round-head lathe tool ascends along the direction of being far away from the shallow groove along the axial direction and then retreats from the upper part of the shallow groove.
The cutting tool bits are extruded broken bits
A kind of round head lathe tool to the shallow slot processing on the retaining ring, including: the turning tool clamping section and the turning tool head section are fixedly connected with each other, the turning tool head section is a round head, the single edge of each of two ends of the turning tool head section is wider than the middle part by 0.4mm, and a 0.4mm gap exists on the single edge when the shallow groove is machined by contacting with the retaining ring, so that the shallow groove can be machined by cutting.
Radius R of two ends of the turning tool head section is 3mm, so that the turning tool head section can conveniently enter and exit from the upper space of the shallow groove and dissipate heat.
The round-head turning tool adopts a hard alloy cutter with a coating.
The lathe tool clamping section and the lathe tool head section are fixedly connected into a whole.
The invention has the beneficial effects that: cutting the shallow slot by 0.4mm unilateral clearance on the round-head lathe tool, and feeding at the feeding speed of 0.1 mm/min-0.12 mm/min along the radial direction of the retaining ring; the shallow groove on the retaining ring is processed and formed, the roughness of the surface of the shallow groove is Ra1.6-Ra3.2, and the requirement that the roughness of the surface of the shallow groove reaches Ra3.2 is met; the problem of current use nonstandard cutter carry out profile modeling feed shallow slot surface according to the shape of shallow slot and can have the ripple is solved, avoided using the gauze to the processing of polishing of shallow slot surface secondary, improved machining efficiency.
Drawings
FIG. 1 is a schematic diagram of a path for machining a retaining ring by using the round-head lathe tool of the invention;
FIG. 2 is a schematic left side view of the round nose tool based on FIG. 1;
in the figure: 1-a retaining ring; 11-shallow grooves; 3-round head lathe tool.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1.
The invention relates to a method for processing a shallow groove on a retaining ring. The method comprises the following steps:
the method comprises the following steps: the retaining ring 1 is fixed on a rotating shaft of a lathe, the round-head turning tool 3 is fixed on a cutter, and the round-head turning tool 3 is aligned to the end, close to the outer side, of the shallow groove to be machined;
step two: the guard ring 1 rotates at a rotating speed of 33-45 r/min along an axial center line, the rotating speed is too high, the abrasion of a cutter is high, local thermal hardening is easily formed on the surface of the cutter, the quality of a machined surface is affected, the rotating speed is low, and the production efficiency is reduced; the round head of the round-head turning tool 3 is axially close to the shallow groove, the back bite of the close round-head turning tool is 0.1 mm-0.2 mm, the side face of the ball-head blade is manually ground by using a polishing grinding wheel, the rigidity of the blade is poor, and the bite is selected to avoid damage of the cutting tool during cutting; the shallow slot is cut by 0.4mm unilateral clearance on the round-head lathe tool 3, and is fed at the feeding speed of 0.1 mm/min-0.12 mm/min along the radial direction of the retaining ring 1, so that the working allowance of the working procedure is small, the working procedure belongs to finish machining, and high surface quality is obtained by slow feeding; the shallow groove 11 on the retaining ring 1 is processed and formed, the surface roughness of the shallow groove is Ra1.6-Ra3.2, and the requirement that the surface roughness of the shallow groove reaches Ra3.2 is met; the problem that the surface of the profiling feed shallow groove is corrugated by using a non-standard cutter according to the shape of the shallow groove in the prior art is solved, the surface of the shallow groove is prevented from being polished for the second time by using gauze, and the processing efficiency is improved;
step three: the round nose tool 3 rises axially away from the shallow groove 11 and then exits from above the shallow groove 11.
The cutting chip removing device is characterized in that the cutting chip removing device is an extrusion type chip breaking device, and the extrusion type chip removing device aims to scratch the processed surface through timely chip breaking and scrap stopping in the processing process.
As shown in fig. 2.
The method for machining the shallow slot on the retaining ring is used for machining the shallow slot on the retaining ring, and comprises the following steps: the turning tool clamping section and the turning tool head section are fixedly connected with each other, the turning tool head section is a round head, the single edge of each of two ends of the turning tool head section is wider than the middle part by 0.4mm, and a 0.4mm gap exists on the single edge when the shallow groove 11 is processed by being in contact with the retaining ring 1, so that the shallow groove 11 can be cut.
Radius R of two ends of the turning tool head section is 3mm, so that the turning tool head section can conveniently enter and exit and dissipate heat from the upper space of the shallow groove 11.
The round-head turning tool 3 adopts a hard alloy cutter with a coating, the hard alloy cutter can be titanium alloy, the titanium alloy has poor heat conductivity, and the coating cutter is used for prolonging the service life of the cutter.
The lathe tool clamping section and the lathe tool head section are fixedly connected into a whole.
Example 1
The invention relates to a method for processing a shallow groove on a retaining ring. The method comprises the following steps:
the method comprises the following steps: the retaining ring 1 is fixed on a rotating shaft of a lathe, the round-head turning tool 3 is fixed on a cutter, and the round-head turning tool 3 is aligned with the end, close to the outer side, of the shallow groove to be machined;
step two: the guard ring 1 rotates at the rotating speed of 33r/min along the axial center line, the rotating speed is too high, the abrasion of a cutter is fast, local thermal hardening is easily formed on the surface of the cutter, the quality of a machined surface is influenced, the rotating speed is low, and the production efficiency is reduced; the round head of the round-head turning tool 3 is close to the shallow groove axially, the back draft of the close round-head turning tool is 0.2mm, the side face of the ball-head blade is ground by a polishing grinding wheel manually, the rigidity of the blade is poor, and the draft is selected to avoid damage of the cutter during cutting; the shallow slot is cut by 0.4mm unilateral clearance on the round-head lathe tool 3, and is fed at the feeding speed of 0.12mm/min along the radial direction of the retaining ring 1, so that the working allowance of the working procedure is small, the shallow slot belongs to finish machining, and high surface quality is obtained by slow feeding; the shallow groove 11 on the retaining ring 1 is processed and formed, the surface roughness of the shallow groove is Ra1.6-Ra3.2, and the requirement that the surface roughness of the shallow groove reaches Ra3.2 is met; the problem that the surface of the profiling feed shallow groove is corrugated by using a non-standard cutter according to the shape of the shallow groove in the prior art is solved, the secondary grinding processing of the surface of the shallow groove by using gauze is avoided, and the processing efficiency is improved;
step three: the round nose tool 3 rises axially away from the shallow groove 11 and then exits from above the shallow groove 11.
Example 2
The invention relates to a method for processing a shallow groove on a retaining ring. The method comprises the following steps:
the method comprises the following steps: the retaining ring 1 is fixed on a rotating shaft of a lathe, the round-head turning tool 3 is fixed on a cutter, and the round-head turning tool 3 is aligned to the end, close to the outer side, of the shallow groove to be machined;
step two: the guard ring 1 rotates at the rotating speed of 32r/min along the axial center line, the rotating speed is too high, the cutter is quickly worn, local thermal hardening is easily formed on the surface of the cutter, the quality of a machined surface is influenced, the rotating speed is low, and the production efficiency is reduced; the round head of the round head turning tool 3 is close to the shallow groove axially, the back bite of the close round head turning tool is 0.16mm, the side face of the ball head blade is ground by a polishing grinding wheel manually, the rigidity of the blade is poor, and the bite is selected to avoid damage of the cutter during cutting; the shallow slot is cut by 0.4mm unilateral clearance on the round-head lathe tool 3, and is fed at the feeding speed of 0.11mm/min along the radial direction of the retaining ring 1, so that the working allowance of the working procedure is small, the shallow slot belongs to finish machining, and high surface quality is obtained by slow feeding; the shallow groove 11 on the retaining ring 1 is processed and formed, the surface roughness of the shallow groove is Ra1.6-Ra3.2, and the requirement that the surface roughness of the shallow groove reaches Ra3.2 is met; the problem that the surface of the profiling feed shallow groove is corrugated by using a non-standard cutter according to the shape of the shallow groove in the prior art is solved, the secondary grinding processing of the surface of the shallow groove by using gauze is avoided, and the processing efficiency is improved;
step three: the round nose tool 3 is raised in the direction axially away from the shallow groove 11 and then withdrawn from above the shallow groove 11.
Example 3
The invention relates to a method for processing a shallow groove on a retaining ring. The method comprises the following steps:
the method comprises the following steps: the retaining ring 1 is fixed on a rotating shaft of a lathe, the round-head turning tool 3 is fixed on a cutter, and the round-head turning tool 3 is aligned to the end, close to the outer side, of the shallow groove to be machined;
step two: the guard ring 1 rotates at a rotating speed of 45r/min along an axial center line, the rotating speed is too high, the abrasion of a cutter is high, local thermal hardening is easily formed on the surface of the cutter, the quality of a machined surface is influenced, the rotating speed is low, and the production efficiency is reduced; the round head of the round-head turning tool 3 is close to the shallow groove axially, the back bite of the close round-head turning tool is 0.1mm, the side face of the ball-head blade is ground by a polishing grinding wheel manually, the rigidity of the blade is poor, and the bite is selected to avoid damage of the cutter during cutting; the shallow slot is cut by 0.4mm unilateral clearance on the round-head lathe tool 3, and is fed at the feeding speed of 0.1mm/min along the radial direction of the retaining ring 1, so that the working allowance of the working procedure is small, the shallow slot belongs to finish machining, and high surface quality is obtained by slow feeding; the shallow groove 11 on the retaining ring 1 is processed and formed, the roughness of the surface of the shallow groove is Ra1.6-Ra3.2, and the requirement that the roughness of the surface of the shallow groove reaches Ra3.2 is met; the problem that the surface of the profiling feed shallow groove is corrugated by using a non-standard cutter according to the shape of the shallow groove in the prior art is solved, the surface of the shallow groove is prevented from being polished for the second time by using gauze, and the processing efficiency is improved;
step three: the round nose tool 3 rises axially away from the shallow groove 11 and then exits from above the shallow groove 11.
Claims (5)
1. A method for processing a shallow groove on a retaining ring is characterized by comprising the following steps:
the method comprises the following steps: the retaining ring (1) is fixed on a rotating shaft of a lathe, the round-head turning tool (3) is fixed on a cutter, and the round-head turning tool (3) is aligned to the end, close to the outer side, of the shallow groove to be machined; the bullnose tool includes: the turning tool clamping section and the turning tool head section are fixedly connected with each other, the turning tool head section is a round head, and one side of each of two ends of the turning tool head section is wider than the middle part by 0.4mm, so that a 0.4mm gap exists in the single side when the turning tool head section is in contact with the retaining ring (1) to machine the shallow groove (11), and the cutting machining of the shallow groove (11) is realized;
step two: the protective ring (1) rotates at the rotation speed of 33-45 r/min along the axial center line; the round head of the round head turning tool (3) is axially close to the shallow groove, and the back bite of the close round head turning tool is 0.1-0.2 mm; cutting the shallow slot by a 0.4mm unilateral clearance on the round-head lathe tool (3), and feeding at a feeding speed of 0.1-0.12 mm/min along the radial direction of the retaining ring (1);
step three: the round-head turning tool (3) ascends along the direction of being far away from the shallow groove (11) in the axial direction and then retreats from the upper part of the shallow groove (11).
2. The method for machining the shallow groove on the retaining ring according to claim 1, wherein: and in the second step, the mode of cutting and removing the tool scraps is extrusion type chip breaking.
3. The method for machining the shallow groove on the retaining ring according to claim 1, wherein: and the radius R of two ends of the turning tool head section is 3 mm.
4. The method for machining the shallow groove on the retaining ring according to claim 1, wherein: the round-head turning tool (3) is a hard alloy tool with a coating.
5. The method for machining the shallow groove on the retaining ring according to claim 1, wherein: the lathe tool clamping section and the lathe tool head section are fixedly connected into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110098723.XA CN112893880B (en) | 2021-01-25 | 2021-01-25 | Method for processing shallow groove on retaining ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110098723.XA CN112893880B (en) | 2021-01-25 | 2021-01-25 | Method for processing shallow groove on retaining ring |
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| Publication Number | Publication Date |
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| CN112893880A CN112893880A (en) | 2021-06-04 |
| CN112893880B true CN112893880B (en) | 2022-07-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115446334B (en) * | 2022-11-09 | 2023-03-17 | 成都和鸿科技股份有限公司 | Method for turning groove on hard alloy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06277905A (en) * | 1993-03-30 | 1994-10-04 | Furukawa Electric Co Ltd:The | Forming tool for machinging peripheral end of circular disc |
| CN1864898A (en) * | 2005-12-16 | 2006-11-22 | 上海汽轮机有限公司 | Process for machining serrated static blade root slot |
| CN201198036Y (en) * | 2008-05-22 | 2009-02-25 | 上海高压油泵厂有限公司 | Sphere processing tool bit |
| CN201537710U (en) * | 2009-09-21 | 2010-08-04 | 常州建华昌盛工具有限公司 | Profile cutter for cutting metal materials |
| CN107175474A (en) * | 2017-06-28 | 2017-09-19 | 贵州黎阳国际制造有限公司 | A kind of processing method of groove |
| CN109986091A (en) * | 2019-04-24 | 2019-07-09 | 陕西理工大学 | The cutting method of aircraft tail fin indent shaping dies |
| CN111633224A (en) * | 2020-06-23 | 2020-09-08 | 贵州黎阳国际制造有限公司 | L-shaped composite ring groove cutting tool |
-
2021
- 2021-01-25 CN CN202110098723.XA patent/CN112893880B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06277905A (en) * | 1993-03-30 | 1994-10-04 | Furukawa Electric Co Ltd:The | Forming tool for machinging peripheral end of circular disc |
| CN1864898A (en) * | 2005-12-16 | 2006-11-22 | 上海汽轮机有限公司 | Process for machining serrated static blade root slot |
| CN201198036Y (en) * | 2008-05-22 | 2009-02-25 | 上海高压油泵厂有限公司 | Sphere processing tool bit |
| CN201537710U (en) * | 2009-09-21 | 2010-08-04 | 常州建华昌盛工具有限公司 | Profile cutter for cutting metal materials |
| CN107175474A (en) * | 2017-06-28 | 2017-09-19 | 贵州黎阳国际制造有限公司 | A kind of processing method of groove |
| CN109986091A (en) * | 2019-04-24 | 2019-07-09 | 陕西理工大学 | The cutting method of aircraft tail fin indent shaping dies |
| CN111633224A (en) * | 2020-06-23 | 2020-09-08 | 贵州黎阳国际制造有限公司 | L-shaped composite ring groove cutting tool |
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