CN105840660B - The pockets processing technique of retainer pocket pore structure with stress buffer slot - Google Patents
The pockets processing technique of retainer pocket pore structure with stress buffer slot Download PDFInfo
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- CN105840660B CN105840660B CN201610356479.1A CN201610356479A CN105840660B CN 105840660 B CN105840660 B CN 105840660B CN 201610356479 A CN201610356479 A CN 201610356479A CN 105840660 B CN105840660 B CN 105840660B
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- milling
- stress buffer
- pocket hole
- retainer
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
- F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
- F16C33/4629—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages made from metal, e.g. cast or machined window cages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/60—Shaping by removing material, e.g. machining
- F16C2220/62—Shaping by removing material, e.g. machining by turning, boring, drilling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/60—Shaping by removing material, e.g. machining
- F16C2220/66—Shaping by removing material, e.g. machining by milling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/23—Gas turbine engines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Retainer pocket pore structure and its pockets processing technique with stress buffer slot.The present invention solves the problems, such as that existing cylinder roller bearing cage pocket structure is big to the abrasion of process tool, machining process is complicated.A kind of retainer pocket pore structure with stress buffer slot, pocket hole are straight pocket hole, and four corners in pocket hole are machined with the stress buffer slot that radius is R2.A kind of pockets processing technique for the above-mentioned retainer pocket pore structure with stress buffer slot, select drill bit, stress buffer groove location according to the requirements of the drawings carries out the pocket hole of cylinder roller bearing retainer using this drill bit on numerical control machining center the processing of stress buffer slot；It drills on numerical control machining center to retainer, bore size will ensure that unilateral milling surplus is 0.1mm~0.25mm；Using milling cutter from the center feed of pocket hole, pockets processing is completed in milling；The pocket hole machined is detected.The present invention is used for the processing in retainer pocket hole.
Description
Technical field
The present invention relates to a kind of retainer pockets processing techniques, and in particular to a kind of retainer pocket with stress buffer slot
The pockets processing technique of pore structure.
Background technology
Cylindrical roller bearing is the widely applied bearing arrangement of aeroplane engine mainshaft bearing, and retainer uses more
40CrNiMoA, quenching and tempering hardness are HRC33~37.The technological process frame of such retainer is：Rough turn plane, outer diameter, internal diameter →
Quenched → whole facing, outer diameter, internal diameter → brill hole milling → drawing square hole → deburring → light decorations → cleaning, processing process are numerous
It is trivial.
Usual cylindrical roller bearing retainer pocket hole is two kinds of straight pocket hole (such as Fig. 1) and milling pulling shaping pocket hole (such as Fig. 2)
Structure completes final processing using the broaching of horizontal or vertical broaching machine.The factor for influencing the pocket hole accuracy of manufacture and surface quality compares
It is more, such as broaching tool manufacture structure, broaching tool workmanship, broaching machine precision, broaching machine operation stability, all it is to determine pockets processing precision
Key element, four wall chamfering of product requirement retainer pocket hole be round and smooth R1, smaller (the general 0.1mm of R1 numerical value<R<0.5mm),
The manufacture difficulty of four wall chamfering of broaching tool cutter tooth is larger, and the technologies such as four wall wedge angle of pocket hole or lacerated wound often occur during broaching asks
Topic, particularly with 40CrNiMoA materials, difficulty bigger of broaching, broach retainer pocket hole when, broaching tool cutter tooth rust more easy to wear,
By taking 28 etc. divide the retainer in pocket hole as an example, reconditioning is repeated to broaching tool cutter tooth reconditioning, cutter after generally processing 5~7 retainers
Number is 7~8 times, needs molding calculating of broaching three times according to pocket hole, a broaching tool service life is at most to process 17 steel to keep
Frame.
Invention content
The present invention is to solve the pockets processing technique of existing cylinder roller bearing cage pocket structure to processing
The problem of abrasion of cutter is big, machined surface quality is poor, and then provide a kind of retainer pocket hole knot with stress buffer slot
The pockets processing technique of structure.
The used to solve above-mentioned technical problem technical solution of the present invention is：
A kind of pockets processing technique of the retainer pocket pore structure with stress buffer slot, pocket hole be straight pocket hole, pocket hole
Four corners be machined with the stress buffer slot that radius is R2, the value of the radius R2 of stress buffer slot 0.75mm~1mm it
Between, step is as follows：
First, the selection radius value drill bit identical with the radius value of the stress buffer slot of drawing requirement, it is according to the requirements of the drawings
Stress buffer groove location delays the pocket hole progress stress of cylinder roller bearing retainer using this drill bit on numerical control machining center
The processing of jet-bedding；
2nd, pocket hole according to the requirements of the drawings center drills to retainer on numerical control machining center, and drill ruler
It is very little to ensure that unilateral milling surplus is 0.1mm~0.25mm；
3rd, milling cutter is utilized on numerical control machining center from the center feed of pocket hole, pocket pore size milling according to the requirements of the drawings
Complete pockets processing；
4th, the pocket hole machined is detected as standard using the positional precision of drawing requirement and surface quality,
Corresponding technological parameter is as follows in step 3：The process route in milling pocket hole is first milling, half finish-milling, finish-milling, first miller
Skill parameter is the milling cutter using a diameter of 5mm, speed of mainshaft 3000r/min, cutter linear velocity 200mm/min, milling cutter once into
To amount for 0.15mm, half finish-milling technological parameter be the milling cutter of a diameter of 3mm of use, speed of mainshaft 4600r/min, cutter linear velocity
100mm/min, milling cutter primary feed amount 0.075mm, finish-milling technological parameter are the milling cutter using a diameter of 2.5mm, the speed of mainshaft
5000r/min, cutter linear velocity 80mm/min, milling cutter primary feed amount 0.025mm.
The present invention has the following effects that compared with prior art：
The pocket pore area of the present invention has the retainer of stress buffer slot, and broaching can be replaced to complete pocket hole with milling mode and added
Work, carbide-tipped milling cutter higher speed steel broaching tool chip function admirable, wear-resistant, the stability of guarantee pockets processing quality；
Retainer pockets processing technique using the present invention, the pocket hole site precision and surface quality processed all obtain
Effective raising improves the performance of retainer, shortens the quality gap with external retainer product.
Description of the drawings
Fig. 1 is that schematic diagram cuts open in the main view office of straight pocket hole retainer；
Fig. 2 is the A-A-A of Fig. 1 to schematic diagram；
Fig. 3 is the K of Fig. 1 to enlarged diagram；
Fig. 4 is that schematic diagram cuts open in the main view office in milling pulling shaping pocket hole；
Fig. 5 is the B-B-B of Fig. 4 to schematic diagram；
The C that Fig. 6 is 5 is to enlarged diagram；
Fig. 7 is enlarged diagram at the I of Fig. 4；
Fig. 8 is that schematic diagram cuts open in the retainer main view office that the pocket pore area of the present invention has stress buffer slot；
Fig. 9 is the D-D-D of Fig. 8 to schematic diagram；
Figure 10 is the J of Fig. 8 to enlarged diagram；
Specific embodiment
Specific embodiment one：Illustrate present embodiment, a kind of retainer with stress buffer slot with reference to Fig. 1~Figure 10
Pocket pore structure, pocket hole are straight pocket hole, and four corners in pocket hole are machined with the stress buffer slot that radius is R2.
The retainer that pocket pore area has stress buffer slot at present is held in 3 profile shafts to be applied, and completes to develop processing, warp
Cross detection, pocket hole surface finish is the μ of Ra0.16~0.19, and pocket hole site precision and stress buffer geosynclinal convex output are satisfied by product
It is required that and precision and the consistency of dimensional values it is good.3 profile shafts passed exerciser verification after holding assembling, meet bearing
It can requirement.The application of the technology makes cylindrical roller bearing pocket hole technology rise to new level, retainer processing
Quality obtains very big amplitude and is promoted, while improves product qualification rate and ensure to deliver node, ensures that production is smooth.
The bulge quantity a of stress buffer slot, which meets according to pocket bottom hole face effective length premised on roller steadily contacts, to be determined, is protected
Card roller is steadily contacted in working condition with pocket hole, does not generate inclination and skidding.
Specific embodiment two：Illustrate present embodiment with reference to Fig. 8~Figure 10, the value of the radius R2 of stress buffer slot exists
Between 0.75mm~1mm.It is so designed that, four wall chamfering of one side pocket hole is easy to control processing, and four walls fall after ensureing pockets processing
Angle is round and smooth, avoids stress concentration；On the other hand, pockets processing mode can be made to be changed into milling by broaching, promotes pockets processing
Quality.Other compositions are same as the specific embodiment one with connection relation.
Specific embodiment three：Illustrate present embodiment with reference to Fig. 1~Figure 10, one kind is directed to specific embodiment one or two
The pockets processing technique of the retainer pocket pore structure with stress buffer slot, step are as follows：
First, the selection radius value drill bit identical with the radius value of the stress buffer slot of drawing requirement, it is according to the requirements of the drawings
Stress buffer groove location delays the pocket hole progress stress of cylinder roller bearing retainer using this drill bit on numerical control machining center
The processing of jet-bedding；
2nd, pocket hole according to the requirements of the drawings center drills to retainer on numerical control machining center, and drill ruler
It is very little to ensure that unilateral milling surplus is 0.1mm~0.25mm；
3rd, milling cutter is utilized on numerical control machining center from the center feed of pocket hole, pocket pore size milling according to the requirements of the drawings
Complete pockets processing；
4th, the pocket hole machined is detected as standard using the positional precision of drawing requirement and surface quality.
The retainer pocket hole of the present invention can apply broaching machine to be processed using broaching layout, can also apply in digital control processing
The heart is using milling mode processing, slave device precision and cutter manufacture technology and aspect of performance consideration is bored, with the processing work of the present invention
Skill, the pocket hole site precision and surface quality processed will be better than being processed with broaching machine, and manufacturing procedure " bores milling by past
Hole --- draw square hole " process merging, it is only necessary to using " milling pocket hole is bored " together, processing can be completed in process, and technical process obtains
Greatly optimization.
Specific embodiment four：Illustrate present embodiment with reference to Fig. 1~Figure 10, one kind is for described in specific embodiment three
The retainer pocket pore structure with stress buffer slot pockets processing technique, corresponding technological parameter is as follows in step 1：It should
Power buffering groove radius is 0.75mm, the drill bit of a diameter of 1.5mm is selected to bore stress buffer slot, technological parameter is the speed of mainshaft
2500r/min, cutter linear velocity 60mm/min, drill bit primary feed amount are 1~1.5mm.Other compositions and connection relation and tool
Body embodiment three is identical.
Specific embodiment five：Illustrate present embodiment with reference to Fig. 1~Figure 10, one kind is for described in specific embodiment four
The retainer pocket pore structure with stress buffer slot pockets processing technique, corresponding technological parameter is as follows in step 2：It bores
Pocket hole centre bore, a diameter of 11.8mm of centre bore, technological parameter are speed of mainshaft 1300r/min, cutter linear velocity 70mm/
Min, drill bit primary feed amount 7.5mm ensure unilateral milling surplus 0.1mm~0.25mm.Other compositions and connection relation and tool
Body embodiment four is identical.
Specific embodiment six：Illustrate present embodiment with reference to Fig. 1~Figure 10, one kind is for described in specific embodiment five
The retainer pocket pore structure with stress buffer slot pockets processing technique, corresponding technological parameter is as follows in step 3：Milling
The process route in pocket hole for first milling, half finish-milling, finish-milling, first milling technological parameter be use a diameter of 5mm milling cutter, the speed of mainshaft
3000r/min, cutter linear velocity 200mm/min, milling cutter primary feed amount are 0.15mm, and half finish-milling technological parameter is using diameter
For the milling cutter of 3mm, speed of mainshaft 4600r/min, cutter linear velocity 100mm/min, milling cutter primary feed amount 0.075mm, finish-milling
Technological parameter is the milling cutter using a diameter of 2.5mm, speed of mainshaft 5000r/min, cutter linear velocity 80mm/min, and milling cutter is primary
Amount of feeding 0.025mm.
Specific embodiment seven：Illustrate present embodiment with reference to Fig. 8~Figure 10, drill bit and milling cutter use hard alloy material
Material.It is so designed that, ensures the positional precision and surface quality in pocket hole processed.Other compositions and connection relation and specific implementation
Mode four, five or six are identical.
Specific embodiment eight：Illustrate present embodiment with reference to Fig. 8~Figure 10, to the step described in specific embodiment seven
The detection of the positional precision and surface quality in pocket hole is in the following way in four：
Ith, for the axial width c in pocket hole and circumferential width b, processing staff and reviewer to all guarantors machined
Frame is held to be detected using aligner one by one；
IIth, for the axial position degree S1-S2 (i.e. the difference of the maxima and minima of (S1-S2)) in pocket hole, pocket hole to base
(i.e. all pocket holes are to basal plane position for mutual alignment degree of the gradient (i.e. pocket hole is to the depth of parallelism K of basal plane B), pocket hole in face to basal plane
Put the difference of the maxima and minima of distance S1), using altimeter G904 apparatus measures, poor (the i.e. institute of pocket hole circumferencial direction etc. point
Have the difference of the maxima and minima in the beam thickness L of pocket hole), using calliper, detection mode is processing staff to processing
The retainer of completion detects one by one, and reviewer requires to randomly select detection according to sampling observation standard；For pocket hole in retainer
To the vertical difference of basal plane B, processing staff or reviewer adopt the initial and end part in the retainer of batch for round concentricity and crossbeam
With three coordinate measurement of measuring room；
IIIth, for the bulge quantity a of stress buffer slot, processing staff detects the retainer of all processing one by one, inspector
Detection is randomly selected according to the requirement of sampling observation standard to the retainer of batch；
IVth, for pocket hole surface roughness, processing staff is sent into measuring room to the initial and end part in the retainer of batch and uses
Contourgraph detects.Other compositions are identical with specific embodiment seven with connection relation.
Claims (4)
1. a kind of pockets processing technique of the retainer pocket pore structure with stress buffer slot, pocket hole is straight pocket hole, pocket hole
Four corners be machined with radius be R2 stress buffer slot, the value of the radius R2 of stress buffer slot between 0.75mm~1mm,
It is characterized in that：Step is as follows：
First, the selection radius value drill bit identical with the radius value of the stress buffer slot of drawing requirement, stress according to the requirements of the drawings
Groove location is buffered, stress buffer slot is carried out to the pocket hole of cylinder roller bearing retainer using this drill bit on numerical control machining center
Processing；
2nd, pocket hole according to the requirements of the drawings center drills to retainer on numerical control machining center, and bore size will
It is 0.1mm~0.25mm to ensure unilateral milling surplus；
3rd, milling cutter is utilized on numerical control machining center, and from the center feed of pocket hole, pocket pore size milling according to the requirements of the drawings is completed
Pockets processing；
4th, the pocket hole machined is detected as standard using the positional precision of drawing requirement and surface quality,
Corresponding technological parameter is as follows in step 3：The process route in milling pocket hole is first milling, half finish-milling, finish-milling, first miller skill ginseng
Milling cutter of the number to use a diameter of 5mm, speed of mainshaft 3000r/min, cutter linear velocity 200mm/min, milling cutter primary feed amount
For 0.15mm, half finish-milling technological parameter is the milling cutter using a diameter of 3mm, speed of mainshaft 4600r/min, cutter linear velocity
100mm/min, milling cutter primary feed amount 0.075mm, finish-milling technological parameter are the milling cutter using a diameter of 2.5mm, the speed of mainshaft
5000r/min, cutter linear velocity 80mm/min, milling cutter primary feed amount 0.025mm.
2. the pockets processing technique of the retainer pocket pore structure according to claim 1 with stress buffer slot, feature
It is：Corresponding technological parameter is as follows in step 1：Stress buffer groove radius is 0.75mm, selects the drill bit of a diameter of 1.5mm
Bore stress buffer slot, technological parameter be speed of mainshaft 2500r/min, cutter linear velocity 60mm/min, drill bit primary feed
It measures as 1~1.5mm.
3. the pockets processing technique of the retainer pocket pore structure according to claim 2 with stress buffer slot, feature
It is：Corresponding technological parameter is as follows in step 2：Bore pocket hole centre bore, a diameter of 11.8mm of centre bore, technological parameter
Ensure unilateral milling surplus for speed of mainshaft 1300r/min, cutter linear velocity 70mm/min, drill bit primary feed amount 7.5mm
0.1mm~0.25mm.
4. the pockets processing technique of the retainer pocket pore structure with stress buffer slot according to Claims 2 or 3, special
Sign is：Drill bit and milling cutter use cemented carbide material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610356479.1A CN105840660B (en) | 2016-05-25 | 2016-05-25 | The pockets processing technique of retainer pocket pore structure with stress buffer slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610356479.1A CN105840660B (en) | 2016-05-25 | 2016-05-25 | The pockets processing technique of retainer pocket pore structure with stress buffer slot |
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| CN105840660B true CN105840660B (en) | 2018-06-26 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880947A (en) * | 2016-05-24 | 2016-08-24 | 安庆银亿轴承有限公司 | Machining process of bearing retainer |
| CN108436393A (en) * | 2018-03-20 | 2018-08-24 | 中国航发哈尔滨轴承有限公司 | A kind of cylinder roller bearing solid cage processing method and Set and Positioning tooling |
| CN111546016A (en) * | 2020-05-27 | 2020-08-18 | 贵州天马虹山轴承有限公司 | One-step machining forming process for steel bearing retainer |
| CN112475825B (en) * | 2020-11-20 | 2022-10-28 | 重庆江增船舶重工有限公司 | Machining method for stepped ring groove of sliding bearing of supercharger |
| CN113649766A (en) * | 2021-08-04 | 2021-11-16 | 洛阳新强联回转支承股份有限公司 | Method for machining pocket of centripetal short cylindrical roller bearing cage with oil storage tank |
| CN114101765A (en) * | 2021-12-08 | 2022-03-01 | 中国航发南方工业有限公司 | Asymmetric groove processing method of high-temperature alloy casing |
| CN116944810A (en) * | 2023-07-18 | 2023-10-27 | 金源(山东)新能源科技发展有限公司 | Composite processing technology of bearing retainer and bearing retainer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202612397U (en) * | 2012-05-26 | 2012-12-19 | 石家庄金士顿轴承科技有限公司 | Cylindrical roller bearing solid retainer |
| JP6131684B2 (en) * | 2013-04-03 | 2017-05-24 | 株式会社ジェイテクト | Comb cage for double row roller bearing and double row roller bearing |
| CN105587770A (en) * | 2016-03-07 | 2016-05-18 | 洛阳轴研科技股份有限公司 | Roller-guiding cylindrical roller bearing retainer and machining method thereof |
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