CN109434391A - A kind of processing method of the bearing cage for aero-engine - Google Patents
A kind of processing method of the bearing cage for aero-engine Download PDFInfo
- Publication number
- CN109434391A CN109434391A CN201811566529.4A CN201811566529A CN109434391A CN 109434391 A CN109434391 A CN 109434391A CN 201811566529 A CN201811566529 A CN 201811566529A CN 109434391 A CN109434391 A CN 109434391A
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- Prior art keywords
- retainer
- tube
- materials
- cut
- finished product
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Classifications
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- 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
-
- 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
Abstract
The invention discloses a kind of processing method of bearing cage for aero-engine, the first step, Pipe Cutting blankings；Second step, Rough turn end face；Third step roughly grinds outer diameter face；4th step, thin vehicle both ends of the surface；5th step bores hole milling；6th step refines outer diameter face；7th step, smart car aperture surface；8th step, deburring；9th step, light decorations；Tenth step, destressing；11st step rolls fore shaft；12nd step, fluorescent penetrant inspection；13rd step, pickling, the processing method of bearing cage for aero-engine of the invention, blanking is carried out using directly cutting materials in the tube, the steel pipe under shearing is all required length every time, after completing a blanking, feeding mechanism self-feeding, it saves raw material and processing efficiency is higher, reduce labor intensity；Annealing temperature is controlled at 520 DEG C or more, no matter roller diameter size, does not occur fore shaft cracking phenomena after retainer rolling, improves product quality and yield rate.
Description
Technical field
The present invention relates to a kind of processing methods of bearing cage for aero-engine, belong to bearing retainer processing
Technical field.
Background technique
Bearing arrangement generally includes inner ring, outer ring, retainer and rolling element, and the effect of bearing cage is to guide and drive
Rolling element rolls on correct raceway；Bearing cage simultaneously rolling element is equally spaced, be evenly arranged on raceway circumference with
It prevents from colliding with each other and rubbing between rolling element when work；Rolling element structure includes ball and cylindrical body roller, and generally cylindrical rolling
What cylinder roller bearing retainer structure, technique were more advanced in sub- bearing technology is divided into nylon injection-molding forming cylinder roller and pours
Note blueness, brass or the machined retainer for being processed into tubular and punching press copper cover board or bar steel being added to form after riveted again of bar steel,
Nylon structure retainer there is intensity difference, it is low using temperature, easy to aging, only can be used in certain specific occasions, although the latter
Better performances, but the accuracy of manufacture requires the disadvantages of high, process is more, production efficiency is low, the materials and processing costs are high；And generally for
Green, brass or steel alloy solid bearing cage, generally use split type structure, and pocket hole lintel, end cap and bottom cover are distinguished
Processing, will be riveted on end cap and bottom cover by pocket hole lintel；Or bottom cover and pocket hole lintel are made one, then by end cover rivet
It connects and constitutes bearing retainer on the lintel of pocket hole.The cylindrical roller of this structure not only complex process, but also since part is adding
The technique accumulation generated in work and installation process misses deviation, not only reduces the precision of bearing, but also it is comprehensive to will affect product
Performance.The processing of existing retainer generallys use sheet fabrication blanking, needs that first plate cutting is grown up strip, reuses pressure
Machine manually feeding, blanking one by one, larger workload, waste material is more, causes largely to waste, increases generation processing cost；In addition,
Retainer is as aero-engine important parts, the performance and aircraft safety of relationship between quality to engine；According to traditional processing side
Method need to repeatedly be ground for the geometric accuracy for guaranteeing bearing cage surface, and multiple processing can answer in inside parts accumulation
Power generates serious machining deformation, and is difficult to control, and directly influences whether machining accuracy；Therefore, in order to solve above ask
A kind of topic, it would be highly desirable to the processing method for proposing new bearing cage for aero-engine.
Summary of the invention
To solve the above problems, the invention proposes a kind of processing method of bearing cage for aero-engine,
It is high in machining efficiency, and good product quality, high yield rate.
The processing method of bearing cage for aero-engine of the invention, comprising the following steps:
Materials in the tube to be cut are sheathed on fixed steel alloy outside plug by the first step, Pipe Cutting blanking, and fixed alloy steel core bar with to
It is installed with gap between the materials in the tube internal diameter cut, guarantees that the deformation quantity of materials in the tube controls in interstice coverage；Again by materials in the tube one to be cut
End outside is filled with movable alloy steel core bar active card, is driven materials in the tube to keep in mind cutter group direction using air-leg and is moved, and leads to
It crosses cutter group to cut materials in the tube, obtains blank material, carry out blanking using directly cutting materials in the tube, every time the steel pipe under shearing
It is all required length, after completing a blanking, feeding mechanism self-feeding, saves raw material and processing efficiency is higher, reduces
Labor intensity；
Second step, Rough turn end face, using particular manufacturing craft by blank material clamping on thick turning attachment, using lathe tool to blank material end
Face and outer diameter face carry out turning operation, and stay and set 0.2 ~ 0.3mm surplus；
Third step is roughly ground outer diameter face, is ground using outer diameter face of the MB43100 face lapping mill to blank material, and guarantee is ground
It is all light-exposed to cut surface, obtains coarse fodder；
4th step, thin vehicle both ends of the surface carry out upper cut to the front and rear end of coarse fodder and aperture surface using center lathe, are protected
Hold frame semi-finished product；
5th step, bore hole milling, using particular manufacturing craft by retainer semi-finished product clamping four axle linkage vertical machining centres work
Make on index dial, 90 ° of invertible vertical milling cutters is selected slightly to bore pocket hole on retainer semi-finished product, then using spherical end mill(ing) cutter essence
Process pocket hole；Later, retainer semi-finished product are taken out；
6th step refines outer diameter face, carries out fine ginding, the grinding wheel speed of control fine grinding bed to retainer semi-finished product using fine grinding bed
For 1500 turns/min；
7th step, smart car aperture surface carry out turning to the retainer semi-finished product after fine grinding using center lathe, control turning speed
For 3800r/min, the amount of feeding is 0.15mm/ times ~ 0.24mm/ times；
8th step, deburring carry out chamfering using the burr of deburrer removal retainer, and to the acute angle on retainer surface
Processing；
9th step, light decorations carry out light decorations to the retainer after deburring using light polishing machine, obtain the retainer of surface-brightening；
Tenth step, destressing will keep being placed in medium temperature salt made from earth containing a comparatively high percentage of sodium chloride isothermal quenching furnace making annealing treatment, and control annealing temperature is
350 ~ 550 DEG C, annealing time is 40 ~ 50min, when stress relief annealing temperature is at 520 DEG C or more, no matter roller diameter is big
It is small, do not occur fore shaft cracking phenomena after retainer rolling；When annealing temperature is lower than 520 DEG C or without stress relief annealing, no matter
Roller diameter size, retainer rolling fore shaft have different degrees of crackle；
11st step is rolled fore shaft, is rolled using pair of rollers retainer fore shaft；
Uniform white powder is first sprinkling upon retainer surface by the 12nd step, fluorescent penetrant inspection, and penetrating fluid is inhaled from fault location
Out and expand to surface；Surface is irradiated with ultraviolet radiator in the dark again, if retainer existing defects, can be issued bright glimmering
Light；
13rd step, pickling first carry out retainer pickling 2 ~ 3 times using 30% ~ 35% sulfuric acid, are then rinsed at least with clear water
It 2 times, is maintained and puts up product.
Further, the cutter group is made of fixed blade and movable blades；The fixed blade and movable blades
It is arcuate structure, and fixed blade is fixedly installed below materials in the tube to be cut, movable blades lifting is installed on materials in the tube to be cut
Top.
Further, it in the brill hole milling of the 5th step, when finish-milling, is first processed using big spherical end mill(ing) cutter, so
Feed is carried out to recessed sharp corner along pocket hole profile afterwards, finish-milling surplus is 0.1 ~ 0.3 mm, and the finish-milling speed of mainshaft is 4000r/min,
The amount of feeding is 1000mm/min.
Further, the idler wheel a diameter of 0.8mm or 1.5mm.
The present invention compared with prior art, the processing method of the bearing cage for aero-engine of the invention,
Blanking is carried out using directly cutting materials in the tube, the steel pipe under shearing is all required length every time, after completing a blanking, feeding mechanism
Self-feeding, saves raw material and processing efficiency is higher, reduces labor intensity；Control annealing temperature at 520 DEG C and with
When upper, no matter roller diameter size, do not occurred fore shaft cracking phenomena after retainer rolling, and improved product quality and finished product
Rate.
Detailed description of the invention
Fig. 1 is the embodiment of the present invention 1 to annealed treated the fore shaft rolling-out test result schematic diagram of embodiment 3.
Fig. 2 is the embodiment of the present invention 4 to annealed treated the fore shaft rolling-out test result schematic diagram of embodiment 6.
Specific embodiment
Embodiment 1:
The processing method of bearing cage for aero-engine as shown in Figure 1, comprising the following steps:
Materials in the tube to be cut are sheathed on fixed steel alloy outside plug by the first step, Pipe Cutting blanking, and fixed alloy steel core bar with to
It is installed with gap between the materials in the tube internal diameter cut, guarantees that the deformation quantity of materials in the tube controls in interstice coverage；Again by materials in the tube one to be cut
End outside is filled with movable alloy steel core bar active card, is driven materials in the tube to keep in mind cutter group direction using air-leg and is moved, and leads to
It crosses cutter group to cut materials in the tube, obtains blank material；
Second step, Rough turn end face, using particular manufacturing craft by blank material clamping on thick turning attachment, using lathe tool to blank material end
Face and outer diameter face carry out turning operation, and stay and set 0.2 ~ 0.3mm surplus；
Third step is roughly ground outer diameter face, is ground using outer diameter face of the MB43100 face lapping mill to blank material, and guarantee is ground
It is all light-exposed to cut surface, obtains coarse fodder；
4th step, thin vehicle both ends of the surface carry out upper cut to the front and rear end of coarse fodder and aperture surface using center lathe, are protected
Hold frame semi-finished product；
5th step, bore hole milling, using particular manufacturing craft by retainer semi-finished product clamping four axle linkage vertical machining centres work
Make on index dial, 90 ° of invertible vertical milling cutters is selected slightly to bore pocket hole on retainer semi-finished product, then using spherical end mill(ing) cutter essence
Process pocket hole；When finish-milling, is first processed using big spherical end mill(ing) cutter, then recessed sharp corner is walked along pocket hole profile
Knife, finish-milling surplus are 0.1 ~ 0.3 mm, and the finish-milling speed of mainshaft is 4000r/min, amount of feeding 1000mm/min；Later, it takes out
Retainer semi-finished product；
6th step refines outer diameter face, carries out fine ginding, the grinding wheel speed of control fine grinding bed to retainer semi-finished product using fine grinding bed
For 1500 turns/min；
7th step, smart car aperture surface carry out turning to the retainer semi-finished product after fine grinding using center lathe, control turning speed
For 3800r/min, the amount of feeding is 0.15mm/ times ~ 0.24mm/ times；
8th step, deburring carry out chamfering using the burr of deburrer removal retainer, and to the acute angle on retainer surface
Processing；
9th step, light decorations carry out light decorations to the retainer after deburring using light polishing machine, obtain the retainer of surface-brightening；
Tenth step, destressing will keep being placed in medium temperature salt made from earth containing a comparatively high percentage of sodium chloride isothermal quenching furnace making annealing treatment, and control annealing temperature is
450 DEG C, annealing time is 40 ~ 50min；
11st step rolls fore shaft, diameter is used to be rolled for the pair of rollers retainer fore shaft of 0.8mm；
Uniform white powder is first sprinkling upon retainer surface by the 12nd step, fluorescent penetrant inspection, and penetrating fluid is inhaled from fault location
Out and expand to surface；Surface is irradiated with ultraviolet radiator in the dark again, if retainer existing defects, can be issued bright glimmering
Light；
13rd step, pickling first carry out retainer pickling 2 ~ 3 times using 30% ~ 35% sulfuric acid, are then rinsed at least with clear water
It 2 times, is maintained and puts up product.
Wherein, the cutter group is made of fixed blade and movable blades；The fixed blade and movable blades are
Arcuate structure, and fixed blade is fixedly installed below materials in the tube to be cut, movable blades lifting is installed on above materials in the tube to be cut.
Embodiment 2:
The processing method of bearing cage for aero-engine as shown in Figure 1, comprising the following steps:
Materials in the tube to be cut are sheathed on fixed steel alloy outside plug by the first step, Pipe Cutting blanking, and fixed alloy steel core bar with to
It is installed with gap between the materials in the tube internal diameter cut, guarantees that the deformation quantity of materials in the tube controls in interstice coverage；Again by materials in the tube one to be cut
End outside is filled with movable alloy steel core bar active card, is driven materials in the tube to keep in mind cutter group direction using air-leg and is moved, and leads to
It crosses cutter group to cut materials in the tube, obtains blank material；
Second step, Rough turn end face, using particular manufacturing craft by blank material clamping on thick turning attachment, using lathe tool to blank material end
Face and outer diameter face carry out turning operation, and stay and set 0.2 ~ 0.3mm surplus；
Third step is roughly ground outer diameter face, is ground using outer diameter face of the MB43100 face lapping mill to blank material, and guarantee is ground
It is all light-exposed to cut surface, obtains coarse fodder；
4th step, thin vehicle both ends of the surface carry out upper cut to the front and rear end of coarse fodder and aperture surface using center lathe, are protected
Hold frame semi-finished product；
5th step, bore hole milling, using particular manufacturing craft by retainer semi-finished product clamping four axle linkage vertical machining centres work
Make on index dial, 90 ° of invertible vertical milling cutters is selected slightly to bore pocket hole on retainer semi-finished product, then using spherical end mill(ing) cutter essence
Process pocket hole；When finish-milling, is first processed using big spherical end mill(ing) cutter, then recessed sharp corner is walked along pocket hole profile
Knife, finish-milling surplus are 0.1 ~ 0.3 mm, and the finish-milling speed of mainshaft is 4000r/min, amount of feeding 1000mm/min；Later, it takes out
Retainer semi-finished product；
6th step refines outer diameter face, carries out fine ginding, the grinding wheel speed of control fine grinding bed to retainer semi-finished product using fine grinding bed
For 1500 turns/min；
7th step, smart car aperture surface carry out turning to the retainer semi-finished product after fine grinding using center lathe, control turning speed
For 3800r/min, the amount of feeding is 0.15mm/ times ~ 0.24mm/ times；
8th step, deburring carry out chamfering using the burr of deburrer removal retainer, and to the acute angle on retainer surface
Processing；
9th step, light decorations carry out light decorations to the retainer after deburring using light polishing machine, obtain the retainer of surface-brightening；
Tenth step, destressing will keep being placed in medium temperature salt made from earth containing a comparatively high percentage of sodium chloride isothermal quenching furnace making annealing treatment, and control annealing temperature is
520 DEG C, annealing time is 40 ~ 50min；
11st step rolls fore shaft, diameter is used to be rolled for the pair of rollers retainer fore shaft of 0.8mm；
Uniform white powder is first sprinkling upon retainer surface by the 12nd step, fluorescent penetrant inspection, and penetrating fluid is inhaled from fault location
Out and expand to surface；Surface is irradiated with ultraviolet radiator in the dark again, if retainer existing defects, can be issued bright glimmering
Light；
13rd step, pickling first carry out retainer pickling 2 ~ 3 times using 30% ~ 35% sulfuric acid, are then rinsed at least with clear water
It 2 times, is maintained and puts up product.
Wherein, the cutter group is made of fixed blade and movable blades；The fixed blade and movable blades are
Arcuate structure, and fixed blade is fixedly installed below materials in the tube to be cut, movable blades lifting is installed on above materials in the tube to be cut.
Embodiment 3:
The processing method of bearing cage for aero-engine as shown in Figure 1, comprising the following steps:
Materials in the tube to be cut are sheathed on fixed steel alloy outside plug by the first step, Pipe Cutting blanking, and fixed alloy steel core bar with to
It is installed with gap between the materials in the tube internal diameter cut, guarantees that the deformation quantity of materials in the tube controls in interstice coverage；Again by materials in the tube one to be cut
End outside is filled with movable alloy steel core bar active card, is driven materials in the tube to keep in mind cutter group direction using air-leg and is moved, and leads to
It crosses cutter group to cut materials in the tube, obtains blank material；
Second step, Rough turn end face, using particular manufacturing craft by blank material clamping on thick turning attachment, using lathe tool to blank material end
Face and outer diameter face carry out turning operation, and stay and set 0.2 ~ 0.3mm surplus；
Third step is roughly ground outer diameter face, is ground using outer diameter face of the MB43100 face lapping mill to blank material, and guarantee is ground
It is all light-exposed to cut surface, obtains coarse fodder；
4th step, thin vehicle both ends of the surface carry out upper cut to the front and rear end of coarse fodder and aperture surface using center lathe, are protected
Hold frame semi-finished product；
5th step, bore hole milling, using particular manufacturing craft by retainer semi-finished product clamping four axle linkage vertical machining centres work
Make on index dial, 90 ° of invertible vertical milling cutters is selected slightly to bore pocket hole on retainer semi-finished product, then using spherical end mill(ing) cutter essence
Process pocket hole；When finish-milling, is first processed using big spherical end mill(ing) cutter, then recessed sharp corner is walked along pocket hole profile
Knife, finish-milling surplus are 0.1 ~ 0.3 mm, and the finish-milling speed of mainshaft is 4000r/min, amount of feeding 1000mm/min；Later, it takes out
Retainer semi-finished product；
6th step refines outer diameter face, carries out fine ginding, the grinding wheel speed of control fine grinding bed to retainer semi-finished product using fine grinding bed
For 1500 turns/min；
7th step, smart car aperture surface carry out turning to the retainer semi-finished product after fine grinding using center lathe, control turning speed
For 3800r/min, the amount of feeding is 0.15mm/ times ~ 0.24mm/ times；
8th step, deburring carry out chamfering using the burr of deburrer removal retainer, and to the acute angle on retainer surface
Processing；
9th step, light decorations carry out light decorations to the retainer after deburring using light polishing machine, obtain the retainer of surface-brightening；
Tenth step, destressing will keep being placed in medium temperature salt made from earth containing a comparatively high percentage of sodium chloride isothermal quenching furnace making annealing treatment, and control annealing temperature is
550 DEG C, annealing time is 40 ~ 50min；
11st step rolls fore shaft, diameter is used to be rolled for the pair of rollers retainer fore shaft of 0.8mm；
Uniform white powder is first sprinkling upon retainer surface by the 12nd step, fluorescent penetrant inspection, and penetrating fluid is inhaled from fault location
Out and expand to surface；Surface is irradiated with ultraviolet radiator in the dark again, if retainer existing defects, can be issued bright glimmering
Light；
13rd step, pickling first carry out retainer pickling 2 ~ 3 times using 30% ~ 35% sulfuric acid, are then rinsed at least with clear water
It 2 times, is maintained and puts up product.
Wherein, the cutter group is made of fixed blade and movable blades；The fixed blade and movable blades are
Arcuate structure, and fixed blade is fixedly installed below materials in the tube to be cut, movable blades lifting is installed on above materials in the tube to be cut.
Embodiment 4:
The processing method of bearing cage for aero-engine as shown in Figure 2, comprising the following steps:
Materials in the tube to be cut are sheathed on fixed steel alloy outside plug by the first step, Pipe Cutting blanking, and fixed alloy steel core bar with to
It is installed with gap between the materials in the tube internal diameter cut, guarantees that the deformation quantity of materials in the tube controls in interstice coverage；Again by materials in the tube one to be cut
End outside is filled with movable alloy steel core bar active card, is driven materials in the tube to keep in mind cutter group direction using air-leg and is moved, and leads to
It crosses cutter group to cut materials in the tube, obtains blank material；
Second step, Rough turn end face, using particular manufacturing craft by blank material clamping on thick turning attachment, using lathe tool to blank material end
Face and outer diameter face carry out turning operation, and stay and set 0.2 ~ 0.3mm surplus；
Third step is roughly ground outer diameter face, is ground using outer diameter face of the MB43100 face lapping mill to blank material, and guarantee is ground
It is all light-exposed to cut surface, obtains coarse fodder；
4th step, thin vehicle both ends of the surface carry out upper cut to the front and rear end of coarse fodder and aperture surface using center lathe, are protected
Hold frame semi-finished product；
5th step, bore hole milling, using particular manufacturing craft by retainer semi-finished product clamping four axle linkage vertical machining centres work
Make on index dial, 90 ° of invertible vertical milling cutters is selected slightly to bore pocket hole on retainer semi-finished product, then using spherical end mill(ing) cutter essence
Process pocket hole；When finish-milling, is first processed using big spherical end mill(ing) cutter, then recessed sharp corner is walked along pocket hole profile
Knife, finish-milling surplus are 0.1 ~ 0.3 mm, and the finish-milling speed of mainshaft is 4000r/min, amount of feeding 1000mm/min；Later, it takes out
Retainer semi-finished product；
6th step refines outer diameter face, carries out fine ginding, the grinding wheel speed of control fine grinding bed to retainer semi-finished product using fine grinding bed
For 1500 turns/min；
7th step, smart car aperture surface carry out turning to the retainer semi-finished product after fine grinding using center lathe, control turning speed
For 3800r/min, the amount of feeding is 0.15mm/ times ~ 0.24mm/ times；
8th step, deburring carry out chamfering using the burr of deburrer removal retainer, and to the acute angle on retainer surface
Processing；
9th step, light decorations carry out light decorations to the retainer after deburring using light polishing machine, obtain the retainer of surface-brightening；
Tenth step, destressing will keep being placed in medium temperature salt made from earth containing a comparatively high percentage of sodium chloride isothermal quenching furnace making annealing treatment, and control annealing temperature is
450 DEG C, annealing time is 40 ~ 50min；
11st step rolls fore shaft, diameter is used to be rolled for the pair of rollers retainer fore shaft of 1.5mm；
Uniform white powder is first sprinkling upon retainer surface by the 12nd step, fluorescent penetrant inspection, and penetrating fluid is inhaled from fault location
Out and expand to surface；Surface is irradiated with ultraviolet radiator in the dark again, if retainer existing defects, can be issued bright glimmering
Light；
13rd step, pickling first carry out retainer pickling 2 ~ 3 times using 30% ~ 35% sulfuric acid, are then rinsed at least with clear water
It 2 times, is maintained and puts up product.
Wherein, the cutter group is made of fixed blade and movable blades；The fixed blade and movable blades are
Arcuate structure, and fixed blade is fixedly installed below materials in the tube to be cut, movable blades lifting is installed on above materials in the tube to be cut.
Embodiment 5:
The processing method of bearing cage for aero-engine as shown in Figure 2, comprising the following steps:
Materials in the tube to be cut are sheathed on fixed steel alloy outside plug by the first step, Pipe Cutting blanking, and fixed alloy steel core bar with to
It is installed with gap between the materials in the tube internal diameter cut, guarantees that the deformation quantity of materials in the tube controls in interstice coverage；Again by materials in the tube one to be cut
End outside is filled with movable alloy steel core bar active card, is driven materials in the tube to keep in mind cutter group direction using air-leg and is moved, and leads to
It crosses cutter group to cut materials in the tube, obtains blank material；
Second step, Rough turn end face, using particular manufacturing craft by blank material clamping on thick turning attachment, using lathe tool to blank material end
Face and outer diameter face carry out turning operation, and stay and set 0.2 ~ 0.3mm surplus；
Third step is roughly ground outer diameter face, is ground using outer diameter face of the MB43100 face lapping mill to blank material, and guarantee is ground
It is all light-exposed to cut surface, obtains coarse fodder；
4th step, thin vehicle both ends of the surface carry out upper cut to the front and rear end of coarse fodder and aperture surface using center lathe, are protected
Hold frame semi-finished product；
5th step, bore hole milling, using particular manufacturing craft by retainer semi-finished product clamping four axle linkage vertical machining centres work
Make on index dial, 90 ° of invertible vertical milling cutters is selected slightly to bore pocket hole on retainer semi-finished product, then using spherical end mill(ing) cutter essence
Process pocket hole；When finish-milling, is first processed using big spherical end mill(ing) cutter, then recessed sharp corner is walked along pocket hole profile
Knife, finish-milling surplus are 0.1 ~ 0.3 mm, and the finish-milling speed of mainshaft is 4000r/min, amount of feeding 1000mm/min；Later, it takes out
Retainer semi-finished product；
6th step refines outer diameter face, carries out fine ginding, the grinding wheel speed of control fine grinding bed to retainer semi-finished product using fine grinding bed
For 1500 turns/min；
7th step, smart car aperture surface carry out turning to the retainer semi-finished product after fine grinding using center lathe, control turning speed
For 3800r/min, the amount of feeding is 0.15mm/ times ~ 0.24mm/ times；
8th step, deburring carry out chamfering using the burr of deburrer removal retainer, and to the acute angle on retainer surface
Processing；
9th step, light decorations carry out light decorations to the retainer after deburring using light polishing machine, obtain the retainer of surface-brightening；
Tenth step, destressing will keep being placed in medium temperature salt made from earth containing a comparatively high percentage of sodium chloride isothermal quenching furnace making annealing treatment, and control annealing temperature is
520 DEG C, annealing time is 40 ~ 50min；
11st step rolls fore shaft, diameter is used to be rolled for the pair of rollers retainer fore shaft of 1.5mm；
Uniform white powder is first sprinkling upon retainer surface by the 12nd step, fluorescent penetrant inspection, and penetrating fluid is inhaled from fault location
Out and expand to surface；Surface is irradiated with ultraviolet radiator in the dark again, if retainer existing defects, can be issued bright glimmering
Light；
13rd step, pickling first carry out retainer pickling 2 ~ 3 times using 30% ~ 35% sulfuric acid, are then rinsed at least with clear water
It 2 times, is maintained and puts up product.
Wherein, the cutter group is made of fixed blade and movable blades；The fixed blade and movable blades are
Arcuate structure, and fixed blade is fixedly installed below materials in the tube to be cut, movable blades lifting is installed on above materials in the tube to be cut.
Embodiment 6:
The processing method of bearing cage for aero-engine as shown in Figure 2, comprising the following steps:
Materials in the tube to be cut are sheathed on fixed steel alloy outside plug by the first step, Pipe Cutting blanking, and fixed alloy steel core bar with to
It is installed with gap between the materials in the tube internal diameter cut, guarantees that the deformation quantity of materials in the tube controls in interstice coverage；Again by materials in the tube one to be cut
End outside is filled with movable alloy steel core bar active card, is driven materials in the tube to keep in mind cutter group direction using air-leg and is moved, and leads to
It crosses cutter group to cut materials in the tube, obtains blank material；
Second step, Rough turn end face, using particular manufacturing craft by blank material clamping on thick turning attachment, using lathe tool to blank material end
Face and outer diameter face carry out turning operation, and stay and set 0.2 ~ 0.3mm surplus；
Third step is roughly ground outer diameter face, is ground using outer diameter face of the MB43100 face lapping mill to blank material, and guarantee is ground
It is all light-exposed to cut surface, obtains coarse fodder；
4th step, thin vehicle both ends of the surface carry out upper cut to the front and rear end of coarse fodder and aperture surface using center lathe, are protected
Hold frame semi-finished product；
5th step, bore hole milling, using particular manufacturing craft by retainer semi-finished product clamping four axle linkage vertical machining centres work
Make on index dial, 90 ° of invertible vertical milling cutters is selected slightly to bore pocket hole on retainer semi-finished product, then using spherical end mill(ing) cutter essence
Process pocket hole；When finish-milling, is first processed using big spherical end mill(ing) cutter, then recessed sharp corner is walked along pocket hole profile
Knife, finish-milling surplus are 0.1 ~ 0.3 mm, and the finish-milling speed of mainshaft is 4000r/min, amount of feeding 1000mm/min；Later, it takes out
Retainer semi-finished product；
6th step refines outer diameter face, carries out fine ginding, the grinding wheel speed of control fine grinding bed to retainer semi-finished product using fine grinding bed
For 1500 turns/min；
7th step, smart car aperture surface carry out turning to the retainer semi-finished product after fine grinding using center lathe, control turning speed
For 3800r/min, the amount of feeding is 0.15mm/ times ~ 0.24mm/ times；
8th step, deburring carry out chamfering using the burr of deburrer removal retainer, and to the acute angle on retainer surface
Processing；
9th step, light decorations carry out light decorations to the retainer after deburring using light polishing machine, obtain the retainer of surface-brightening；
Tenth step, destressing will keep being placed in medium temperature salt made from earth containing a comparatively high percentage of sodium chloride isothermal quenching furnace making annealing treatment, and control annealing temperature is
550 DEG C, annealing time is 40 ~ 50min；
11st step rolls fore shaft, diameter is used to be rolled for the pair of rollers retainer fore shaft of 1.5mm；
Uniform white powder is first sprinkling upon retainer surface by the 12nd step, fluorescent penetrant inspection, and penetrating fluid is inhaled from fault location
Out and expand to surface；Surface is irradiated with ultraviolet radiator in the dark again, if retainer existing defects, can be issued bright glimmering
Light；
13rd step, pickling first carry out retainer pickling 2 ~ 3 times using 30% ~ 35% sulfuric acid, are then rinsed at least with clear water
It 2 times, is maintained and puts up product.
Wherein, the cutter group is made of fixed blade and movable blades；The fixed blade and movable blades are
Arcuate structure, and fixed blade is fixedly installed below materials in the tube to be cut, movable blades lifting is installed on above materials in the tube to be cut.
The processing method of bearing cage for aero-engine of the invention is carried out down using direct cutting materials in the tube
Material, the lower steel pipe of shearing is all required length every time, after completing a blanking, feeding mechanism self-feeding, saving raw material and
Processing efficiency is higher, reduces labor intensity；Annealing temperature is controlled at 520 DEG C or more, no matter roller diameter size,
Do not occur fore shaft cracking phenomena after retainer rolling, improves product quality and yield rate.
Above-described embodiment is only better embodiment of the invention, therefore all according to structure described in present patent application range
It makes, the equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.
Claims (4)
1. a kind of processing method of the bearing cage for aero-engine, it is characterised in that: the following steps are included:
Materials in the tube to be cut are sheathed on fixed steel alloy outside plug by the first step, Pipe Cutting blanking, and fixed alloy steel core bar with to
It is installed with gap between the materials in the tube internal diameter cut, guarantees that the deformation quantity of materials in the tube controls in interstice coverage；Again by materials in the tube one to be cut
End outside is filled with movable alloy steel core bar active card, is driven materials in the tube to keep in mind cutter group direction using air-leg and is moved, and leads to
It crosses cutter group to cut materials in the tube, obtains blank material；
Second step, Rough turn end face, using particular manufacturing craft by blank material clamping on thick turning attachment, using lathe tool to blank material end
Face and outer diameter face carry out turning operation, and stay and set 0.2 ~ 0.3mm surplus；
Third step is roughly ground outer diameter face, is ground using outer diameter face of the MB43100 face lapping mill to blank material, and guarantee is ground
It is all light-exposed to cut surface, obtains coarse fodder；
4th step, thin vehicle both ends of the surface carry out upper cut to the front and rear end of coarse fodder and aperture surface using center lathe, are protected
Hold frame semi-finished product；
5th step, bore hole milling, using particular manufacturing craft by retainer semi-finished product clamping four axle linkage vertical machining centres work
Make on index dial, 90 ° of invertible vertical milling cutters is selected slightly to bore pocket hole on retainer semi-finished product, then using spherical end mill(ing) cutter essence
Process pocket hole；Later, retainer semi-finished product are taken out；
6th step refines outer diameter face, carries out fine ginding, the grinding wheel speed of control fine grinding bed to retainer semi-finished product using fine grinding bed
For 1500 turns/min；
7th step, smart car aperture surface carry out turning to the retainer semi-finished product after fine grinding using center lathe, control turning speed
For 3800r/min, the amount of feeding is 0.15mm/ times ~ 0.24mm/ times；
8th step, deburring carry out chamfering using the burr of deburrer removal retainer, and to the acute angle on retainer surface
Processing；
9th step, light decorations carry out light decorations to the retainer after deburring using light polishing machine, obtain the retainer of surface-brightening；
Tenth step, destressing will keep being placed in medium temperature salt made from earth containing a comparatively high percentage of sodium chloride isothermal quenching furnace making annealing treatment, and control annealing temperature is
350 ~ 550 DEG C, annealing time is 40 ~ 50min；
11st step is rolled fore shaft, is rolled using pair of rollers retainer fore shaft；
Uniform white powder is first sprinkling upon retainer surface by the 12nd step, fluorescent penetrant inspection, and penetrating fluid is inhaled from fault location
Out and expand to surface；Surface is irradiated with ultraviolet radiator in the dark again, if retainer existing defects, can be issued bright glimmering
Light；
13rd step, pickling first carry out retainer pickling 2 ~ 3 times using 30% ~ 35% sulfuric acid, are then rinsed at least with clear water
It 2 times, is maintained and puts up product.
2. the processing method of the bearing cage according to claim 1 for aero-engine, it is characterised in that: described
Cutter group is made of fixed blade and movable blades；The fixed blade and movable blades are arcuate structure, and fixing cutter
Piece is fixedly installed below materials in the tube to be cut, and movable blades lifting is installed on above materials in the tube to be cut.
3. the processing method of the bearing cage according to claim 1 for aero-engine, it is characterised in that: described
In the brill hole milling of 5th step, when finish-milling, first processed using big spherical end mill(ing) cutter, then along pocket hole profile to recessed sharp corner
Feed is carried out, finish-milling surplus is 0.1 ~ 0.3 mm, and the finish-milling speed of mainshaft is 4000r/min, amount of feeding 1000mm/min.
4. the processing method of the bearing cage according to claim 1 for aero-engine, it is characterised in that: described
Idler wheel a diameter of 0.8mm or 1.5mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811566529.4A CN109434391A (en) | 2018-12-21 | 2018-12-21 | A kind of processing method of the bearing cage for aero-engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811566529.4A CN109434391A (en) | 2018-12-21 | 2018-12-21 | A kind of processing method of the bearing cage for aero-engine |
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| CN109434391A true CN109434391A (en) | 2019-03-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109732293A (en) * | 2019-03-27 | 2019-05-10 | 中国航发哈尔滨轴承有限公司 | A kind of thin-walled divergence type solid cage processing method |
| CN109894826A (en) * | 2019-04-25 | 2019-06-18 | 中国航发哈尔滨轴承有限公司 | Outer ring is without rib cylindrical roller bearing silicon bronze solid cage processing method |
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| CN109732293A (en) * | 2019-03-27 | 2019-05-10 | 中国航发哈尔滨轴承有限公司 | A kind of thin-walled divergence type solid cage processing method |
| CN109732293B (en) * | 2019-03-27 | 2021-03-26 | 中国航发哈尔滨轴承有限公司 | Thin-wall separation type solid retainer processing method |
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Application publication date: 20190308 |