CN110038925A - A kind of device and method of correcting quenching rear axle bearing outer-ring - Google Patents
A kind of device and method of correcting quenching rear axle bearing outer-ring Download PDFInfo
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- CN110038925A CN110038925A CN201910247728.7A CN201910247728A CN110038925A CN 110038925 A CN110038925 A CN 110038925A CN 201910247728 A CN201910247728 A CN 201910247728A CN 110038925 A CN110038925 A CN 110038925A
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- correction
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- bearing outer
- electric cylinders
- warp
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/14—Recontouring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/10—Making other particular articles parts of bearings; sleeves; valve seats or the like
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
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- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of device and methods of correcting quenching rear axle bearing outer-ring.Apparatus of the present invention include that rack, oval aligning gear and warp correction mechanism, oval aligning gear and warp correction mechanism are both secured to rack；Oval aligning gear respectively drives four oval gripping blocks that correct by computer control four oval correction electric cylinders drivings and completes to correct elliptical movements；Warp correction mechanism controls the movement that warp correction electric cylinders drive warp correction compact heap to complete correction warpage by computer.The present invention improves Corrective control ability and calibration result, makes that correction course is time saving and energy saving, optimizes straightened up in place technique, shortens the production cycle, reduce production cost, improve utilization rate of equipment and installations.The present invention can be applied not only to ellipse and the correction of warpage of large size bearing outer ring, also be able to satisfy the alignment requirements of medium-and-large-sized, medium size bearing outer ring ellipse and warpage.
Description
Technical field
The present invention relates to bearing technical field of heat treatment, the device of specially a kind of correcting quenching rear axle bearing outer-ring and side
Method, it is especially suitable for the ellipse of large size bearing outer ring and the corrections of warpage, but are not limited to.
Background technique
Unavoidably there is structural stress and thermal stress in quenching process in large size bearing outer ring, causes outer ring to generate ellipse
Circle, buckling deformation.To guarantee the size after finishing, each bearing mnanufacture factory has formulated corresponding bearing outer ring heat-treatment distortion
Standard.Once large size bearing outer ring exceeds Set criteria, need to be corrected.
The method that existing large size bearing outer ring straightening by heat treatment technique generallys use the correction of process inner support, this method are as follows: set
It is cooled to room temperature after circle quenching, measuring deflection minimum point, → unqualified top shape → is tempered → removing holder → by top shape technique to survey again
Amount diameter distortion amount → shaping qualified product is tempered by additional tempering process → measures variation in diameter amount, transfers after qualified, unqualified
Again shaping.
Although the prior art can control heat-treatment distortion to a certain extent, cumbersome time-consuming, and need twice
Tempering, time-consuming and laborious and waste production cost, can directly drag slowly manufacturing schedule, lead to that the production cycle is long, utilization rate of equipment and installations is low.
Summary of the invention
The object of the present invention is to provide a kind of quenched means for correcting of bearing outer ring and methods, to improve correction control
Ability processed and calibration result are produced into time saving and energy saving correction course, optimization straightened up in place technique, shortening production cycle, reduction
Originally, utilization rate of equipment and installations is improved.
In order to solve the above technical problems, the specific technical solution that the present invention uses is as follows:
A kind of device of correcting quenching rear axle bearing outer-ring, characterized by comprising: rack, oval aligning gear and warpage school
Positive mechanism；The ellipse aligning gear is located at frame lower, is fixedly mounted on the rack, the warp correction mechanism is located at ellipse
The top of aligning gear, is fixedly mounted on upper rack.
The rack includes top plate, warp correction directive slide track, pedestal, level(l)ing mechanism, the warp correction guiding
Top plate and pedestal is bolted in sliding rail, and the level(l)ing mechanism is mounted at the following four corners of pedestal, with realization device
Level tune.
The ellipse aligning gear includes oval correction electric cylinders, oval correction push rod, oval correction gripping block, oval correction
Directive slide track, electric cylinders fixed plate and dressing plate；The oval correction electric cylinders bottom is fixedly mounted in electric cylinders fixed plate, oval
Correction electric cylinders output shaft is connect by shaft coupling with ellipse correction push rod, and the oval correction gripping block is mounted on oval correction and pushes away
On bar, the electric cylinders fixed plate and oval correction directive slide track are mounted on dressing plate, and the dressing plate is fixedly mounted
On pedestal.
The warp correction mechanism includes warp correction electric cylinders, warp correction push rod, warp correction sliding block and warp correction
Compact heap, warp correction electric cylinders bottom are fixedly mounted on top plate, and warp correction electric cylinders output shaft passes through shaft coupling and sticks up
The connection of Qu Jiaozheng push rod, the warp correction sliding block are mounted below warp correction push rod, the warp correction warp correction pressure
Tight block is mounted below warp correction sliding block.
The ellipse aligning gear controls four oval correction electric cylinders drivings by computer and respectively drives four oval schools
Positive gripping block is completed to correct elliptical movement, and the warp correction mechanism controls warp correction electric cylinders by computer and drives warpage
Correct the movement that compact heap completes correction warpage.
The ellipse aligning gear and warp correction mechanism are all made of electric cylinders as drive system, and electric cylinders are by servo electricity
The rotary motion of servo motor is converted into moving along a straight line by the modular product of machine and lead screw integrated design, while by servo
The control of motor precise rotation, the control of accurate revolution, accurate torque control are transformed into precise speed control, Accurate Position Control, essence
True thrust control, it and be easy to connect with computer control system, realize high-accuracy motion control.
Relative motion high-accuracy control of electric cylinders with computer of the ellipse aligning gear and warp correction mechanism；
The initial zero position of the oval correction gripping block of the warp correction compact heap and four and the center of dressing plate, can be by
Computer identification, warp correction compact heap and the speed of service of four oval correction gripping blocks, operation displacement, warp correction compress
The instant clamping power of the instantaneous pressing force of block and oval correction gripping block can realize accurate control by computer.
Four oval correction gripping blocks of the oval correction gripping block are identical module, and the module is in 120-
It is used at 150 DEG C, therefore material selection is heat-resisting and the higher heat-resistance stainless steel of good stability of the dimension, hardness；The module size root
Targeted design is done according to different bearing outer ring products are processed, and when batch machining, is shifted to an earlier date according to on-site verification data or empirical equation
Design.The cylindrical surface diameter d of ellipse correction gripping block1Outer diameter is flat after being quenched according to a certain number of bearing outer rings of Qualify Phase
Mean value obtains, general cylindrical surface diameter d1It is designed as outer diameter average value ± 0.02mm, the cylindrical surface height h of ellipse correction gripping block1
It is obtained according to the average value of height after a certain number of bearing outer ring quenchings of Qualify Phase, it is assumed that apparatus of the present invention once correct axis
The quantity of bearing outer-ring is set as n, general cylindrical surface height h1It is designed as (n* height average) ± 0.02mm；And its cylindrical surface circle
Arc length must be less than a quarter of the circumference；It is required that oval correction gripping block (7) curved surface and the contact surface with dressing plate
It must be smooth and be mutually perpendicular to.
The warp correction compact heap uses at 120-150 DEG C, thus material selection is heat-resisting and good stability of the dimension,
The higher heat-resistance stainless steel of hardness；The module size does targeted design according to different bearing outer ring products is processed.Assuming that axis
Bearing outer-ring outer diameter is D, and channel d, warp correction compact heap (14) diameter is d2, diameter d2It is typically designed and meets d+ (D-d) * 3/4
< d2< D, the cylindrical surface height h of warp correction compact heap (14)2According to the cylindrical surface design of oval correction gripping block (7)
Height h1, the height h of bearing outer ring and the quantity n of primary correction bearing outer ring obtain, be typically designed and meet h2> h1- n*h is
It can；The disc of the warp correction compact heap contacted with bearing outer ring must be smooth.
The oval correction gripping block and warp correction compact heap be it is removable, design the clamping according to different bearing outer rings
And compression module, it can flexibly use at the scene, improve the utilization rate of device.
The oval aligning gear is set there are four oval correction electric cylinders, and ellipse correction electric cylinders are by bolt along dressing plate
Center line installation, and can be adjusted, be distributed on dressing plate in cruciform symmetry with the oval correction electric cylinders of guarantee and be in same
One level height.
The warp correction electric cylinders, warp correction push rod, warp correction sliding block and warp correction compact heap central axis
Adjusting is installed to same vertical central axis, to guarantee warp correction compact heap in the operation of vertical direction and loading procedure not
It shifts；Lubrication system is equipped at the cooperation of warp correction sliding block and the warp correction directive slide track of rack, to guarantee to run
Stability and reliability.
Four oval correction gripping block two sides are equipped with corresponding oval correction guiding in the ellipse aligning gear
Sliding rail close-fitting sliding block is equipped with lubrication system at the cooperation, to guarantee the stability and reliability of operation.
The upper surface of dressing plate is smooth cross plate in the ellipse aligning gear, to guarantee oval holder for correcting
The stability and reliability of tight block movement.
To guarantee that electric cylinders fixed plate can continue to bear the opposition in correction course in the oval aligning gear, adopt
It is greater than the high-strength steel sheet that can bear instant impact of 20mm with thickness.
A kind of method of correcting quenching rear axle bearing outer-ring, comprising the following steps:
Step 1, low temperature quenching heating
Automatic assembly line is quenched using net belt type protective atmosphere, controlled atmosphere heating furnace is divided into four heating zones, respectively
One area, 2nd area, 3rd area, 4th area, quenching temperature are set separately: an area is 790-800 DEG C, 825-835 DEG C of 2nd area, 3rd area
840-845 DEG C of 4th area 840-850 DEG CHe, total Quench heating time are 45-55min, so reduce quenching temperature and heating
The purpose of speed is to reduce deformation as far as possible under the premise of guaranteeing that bearing outer ring hardness and tissue are gone；
Step 2, quenching cooling
Rear axle bearing outer-ring of coming out of the stove falls into oil-quenching tank cooling automatically, and control quenching oil temperature makes bearing outer ring oil outlet temperature control
The agitating device and circulating pump made in 120-150 DEG C, oil-quenching tank are not opened；
Step 3, data collection
After bearing outer ring is fuel-displaced, operator picks out while hot with high temperature protection gloves, rapid survey bearing outer ring outer diameter
Maximum value and minimum value, the maximum value and minimum value of bearing outer ring height input the maximum value and minimum value of outer diameter and height
Computer so that computer calculates the average value of outer diameter average value and height after bearing outer ring quenching, and then obtains oval school
The optimum level operation displacement of positive gripping block and the best vertical operation displacement of warp correction compact heap, then set bearing outer ring
In dressing plate center；
Step 4 corrects while hot
S3 movement is so repeated, until passing through calculating after the best bearing ring for piling up quantity has been piled up in dressing plate center
The oval correction of machine starting, specifically: it is ellipse that No.1 is respectively driven by No.1 ellipse correction electric cylinders and No. two oval correction electric cylinders first
Circle correction gripping block and No. two ellipses correct gripping blocks and reach pre- clamped position from initial zero position Tong Shi, the axis that will have been piled up
The cylindrical surface that bearing outer-ring is close to gripping block ellipse correction gripping block is placed, then by No. three oval correction electric cylinders and No. four oval schools
Positive electric cylinders respectively drive No. three oval correction gripping blocks and No. four oval correction gripping blocks reached from initial zero position Tong Shi it is pre-
Clamped position makes bearing outer ring enter pre- clamped condition, controls finally by computer, starts the instantaneous of oval correction gripping block
Clamping force makes four oval correction gripping blocks while enabling clamping, so that it is reached optimum operation displacement terminal, keep clamping shape
State；
Step 5 corrects warpage
After bearing outer ring ellipse corrects, pass through computer starting warp correction: driving warpage by warp correction electric cylinders
It corrects compact heap and reaches pre-pressing position from initial zero position, so that bearing outer ring is entered pre-pressing state, then pass through calculating
Machine control, starts the instantaneous impact of warp correction compact heap, enables warp correction compact heap and compresses, it is made to reach most good speed
Line position moves terminal, keeps impaction state；
Step 6, unloading are recalled
After bearing outer ring keeps impaction state 3-5min, correction unloading is controlled by computer and is recalled: four oval corrections
Gripping block and warp correction compact heap unload simultaneously, are retracted into pre- clamped position and pre-pressing position respectively, then recall simultaneously
Initial zero position；
Step 7, tempering
Bearing outer ring is removed, is tempered into free-standing tempering furnace；160-180 DEG C of tempering temperature, tempering time 4-5h.
The present invention have the utility model has the advantages that
(1) present invention makes the electric cylinders dynamical system driving correction module completion corrective action that computerizeds control, and makes to correct
Journey is intelligent, automates, and replaces cumbersome manual synchronizing to operate, lightens the burden significantly to site operation personnel, shortens correction time, have
Effect solves the problems, such as that correction scene is time-consuming and laborious；
(2) present invention can accurately control speed, position using electric cylinders using computer connection control electric cylinders dynamical system
It sets, the advantage of thrust, excludes artificial correction error rate, improve correction accuracy and correction qualification rate, keep calibration result significant；
(3) only need set of device system that can complete to need two covering device systems just achievable school in the past in the present invention
Positive oval and warpage movement, greatly improves correction efficiency；Avoid simultaneously need being dismounted for multiple times using two covering device systems and
Caused unnecessary deformation, while shortening correction time, it avoids causing bearing outer ring to cool down because of time-lag, imitates self tempering
The big heavy discount of fruit, the unconspicuous problem of calibration result；
(4) bearing calibration of the invention only need to be returned once by control quenching oil temperature using bearing outer ring waste heat self tempering
Fire reduces times of tempering, saves tempering equipment, improves utilization rate of equipment and installations, reduces energy waste.
(5) bearing calibration of the present invention utilizes bearing outer ring waste heat self tempering, only need to once be tempered, while shortening production week
Phase improves manufacturing schedule.
(6) the oval correction gripping block of bearing outer ring means for correcting of the present invention and warp correction compact heap are removable, according to
Different bearing outer rings design the clamping and compression module, can flexibly use at the scene, improve the utilization rate of device.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is the frame of the invention schematic diagram.
Fig. 3 is the oval aligning gear schematic diagram of the present invention.
Fig. 4 is the oval aligning gear schematic diagram of the present invention.
In figure: 1 top plate, 2 warp correction directive slide tracks, 3 pedestals, 4 level(l)ing mechanisms, 5 oval correction electric cylinders, 6 ellipses
Correct push rod, 7 oval correction gripping blocks, 8 oval correction directive slide tracks, 9 electric cylinders fixed plates, 10 dressing plates, 11 warp corrections
Electric cylinders, 12 warp correction push rods, 13 warp correction sliding blocks, 14 warp correction compact heaps, 51 No.1 ellipses correct electric cylinders, 52 No. two
Ellipse correction electric cylinders, 53 No. three oval correction electric cylinders, 54 No. four oval correction electric cylinders, 71 No.1 ellipses correct gripping block, 72 2
Number oval correction gripping block, 73 No. three oval correction gripping blocks, 74 No. four oval correction gripping blocks.
Specific embodiment
With reference to the accompanying drawings and detailed description, further details of the technical solution of the present invention.
Embodiment 1
The overall structure of apparatus of the present invention is fixedly mounted on rack as shown in Figure 1, oval aligning gear is located at frame lower
On, the warp correction mechanism is located at the top of oval aligning gear, is fixedly mounted on upper rack.The ellipse aligning gear
With relative motion high-accuracy control of electric cylinders with computer of warp correction mechanism.
Rack of the invention is as shown in Fig. 2, rack includes top plate 1, warp correction directive slide track 2, pedestal 3, Level tune
Top plate 1 and pedestal 3 is bolted in mechanism 4, the warp correction directive slide track 2, and the level(l)ing mechanism 4 is mounted on bottom
, it can be achieved that the Level tune of device at the following four corners of seat 3.
Oval aligning gear of the invention is as shown in figure 3, include oval correction electric cylinders 5, oval correction push rod 6, oval school
Positive gripping block 7, oval correction directive slide track 8, electric cylinders fixed plate 9, dressing plate 10, oval correction 5 bottom of electric cylinders are fixed
It is mounted in electric cylinders fixed plate 9, ellipse correction 5 output shaft of electric cylinders is connect by shaft coupling with ellipse correction push rod 6, the ellipse
Correction gripping block 7 is mounted on oval correction push rod 6, and the electric cylinders fixed plate 9 and oval correction directive slide track 8 are mounted on
Dressing plate 10, the dressing plate 10 are fixedly mounted on the base 3.
Warp correction mechanism of the invention is as shown in figure 4, include warp correction electric cylinders 11, warp correction push rod 12, warpage
Correction sliding block 13 and warp correction compact heap 14,11 bottom of warp correction electric cylinders are fixedly mounted on top plate 1, warp correction
11 output shaft of electric cylinders is connect by shaft coupling with warp correction push rod 12, and the warp correction sliding block 13 is mounted on warp correction and pushes away
12 lower section of bar, the warp correction warp correction compact heap 14 are mounted on 13 lower section of warp correction sliding block.
The course of work of apparatus of the present invention is as follows:
(1) data collection: after bearing outer ring is fuel-displaced, operator picks out while hot with high temperature protection gloves, rapid survey axis
Maximum value and minimum value, the maximum value and minimum value of bearing outer ring height of bearing outer-ring outer diameter, by the maximum value of outer diameter and height
Computer is inputted with minimum value, so that computer calculates the average value of outer diameter average value and height after bearing outer ring quenching, into
And the optimum level operation displacement of oval correction gripping block and the best vertical operation displacement of warp correction compact heap are obtained, then
Bearing outer ring is placed in dressing plate center.
(2) it corrects while hot: so repeating S3 movement, until the best bearing holder (housing, cover) for piling up quantity has been piled up in 10 center of dressing plate
It after circle, is corrected by computer starting ellipse: electric cylinders 51 being corrected by No.1 ellipse first and No. two oval correction electric cylinders 52 are distinguished
Driving No.1 ellipse correction gripping block 71 and No. two ellipses correct gripping blocks 72 and reach pre- clamping position from initial zero position Tong Shi
It sets, the bearing outer ring piled up is close to oval correction 7 cylindrical surface of gripping block and is placed, then corrects 53 He of electric cylinders by No. three ellipses
No. four oval correction electric cylinders 54 respectively drive No. three oval correction gripping blocks 73 and No. four oval correction gripping blocks 74 from initial zero
Position sets out reach pre- clamped position simultaneously, so that bearing outer ring is entered pre- clamped condition, controls finally by computer, and starting is oval
The instantaneous impact for correcting gripping block 7 makes four oval correction gripping blocks 7 while enabling clamping, it is made to reach optimum operation position
Terminal is moved, clamped condition is kept.
(3) it corrects warpage: after bearing outer ring ellipse corrects, passing through computer starting warp correction: by warp correction
Electric cylinders 11 drive warp correction compact heap 14 to reach pre-pressing position from initial zero position, and bearing outer ring is made to enter pre-pressing shape
Then state is controlled by computer, start the instantaneous impact of warp correction compact heap 14, enables warp correction compact heap 14
It compresses, so that it is reached optimum operation displacement terminal, keep impaction state.
(4) unloading is recalled: after bearing outer ring keeps impaction state 3-5min, correction unloading is controlled by computer and is recalled:
Four oval correction gripping blocks 7 and warp correction compact heap 14 unload simultaneously, are retracted into pre- clamped position and pre-pressing position respectively
It sets, then recalls initial zero position simultaneously.
(5) after the quenching of next group bearing outer ring is fuel-displaced, (1)-(4) movement is repeated.
Embodiment 2
A model bearing outer ring bearing calibration implementation process of the present invention.
S1, low temperature quenching heating: automatic assembly line is quenched using net belt type protective atmosphere, controlled atmosphere heating furnace is divided into
Four heating zones, respectively an area, 2nd area, 3rd area, 4th area, respectively an area, 2nd area, 3rd area, 4th area, quenching temperature point
Do not set: as 800 DEG C, 835 DEG C of 2nd area, 845 DEG C of 4th area 3rd areas, 850 DEG CHe, total Quench heating time is 55min in an area；
S2, quenching cooling: rear axle bearing outer-ring of coming out of the stove falls into oil-quenching tank cooling automatically, and control quenching oil temperature makes outside bearing
Oil temperature control is irised out at 120 DEG C, agitating device and circulating pump in oil-quenching tank are not opened；
S3, data collection: after bearing outer ring is fuel-displaced, operator picks out while hot with high temperature protection gloves, rapid survey axis
Maximum value and minimum value, the maximum value and minimum value of bearing outer ring height of bearing outer-ring outer diameter, by the maximum value of outer diameter and height
Computer is inputted with minimum value, so that computer calculates the average value of outer diameter average value and height after bearing outer ring quenching, into
And the optimum level operation displacement of oval correction gripping block and the best vertical operation displacement of warp correction compact heap are obtained, then
Bearing outer ring is placed in dressing plate center.
S4, it corrects while hot: so repeating S3 movement, until the best bearing holder (housing, cover) for piling up quantity has been piled up in 10 center of dressing plate
It after circle, is corrected by computer starting ellipse: electric cylinders 51 being corrected by No.1 ellipse first and No. two oval correction electric cylinders 52 are distinguished
Driving No.1 ellipse correction gripping block 71 and No. two ellipses correct gripping blocks 72 and reach pre- clamping position from initial zero position Tong Shi
It sets, the bearing outer ring piled up is close to oval correction 7 cylindrical surface of gripping block and is placed, then corrects 53 He of electric cylinders by No. three ellipses
No. four oval correction electric cylinders 54 respectively drive No. three oval correction gripping blocks 73 and No. four oval correction gripping blocks 74 from initial zero
Position sets out reach pre- clamped position simultaneously, so that bearing outer ring is entered pre- clamped condition, controls finally by computer, and starting is oval
The instantaneous impact for correcting gripping block 7 makes four oval correction gripping blocks 7 while enabling clamping, it is made to reach optimum operation position
Terminal is moved, clamped condition is kept.
S5, correction warpage: after bearing outer ring ellipse corrects, pass through computer starting warp correction: by warp correction
Electric cylinders 11 drive warp correction compact heap 14 to reach pre-pressing position from initial zero position, and bearing outer ring is made to enter pre-pressing shape
Then state is controlled by computer, start the instantaneous impact of warp correction compact heap 14, enables warp correction compact heap 14
It compresses, so that it is reached optimum operation displacement terminal, keep impaction state.
S6, unloading are recalled: after bearing outer ring keeps impaction state 5min, being controlled correction unloading by computer and recalled: four
A oval correction gripping block 7 and warp correction compact heap 14 unload simultaneously, are retracted into pre- clamped position and pre-pressing position respectively,
Then initial zero position is recalled simultaneously.
S7, tempering: removing bearing outer ring, is tempered into free-standing tempering furnace；160 DEG C of tempering temperature, tempering time 5h.
Embodiment 3
Type B bearing outer ring bearing calibration implementation process of the present invention.
S1, low temperature quenching heating: automatic assembly line is quenched using net belt type protective atmosphere, controlled atmosphere heating furnace is divided into
Four heating zones, respectively an area, 2nd area, 3rd area, 4th area, quenching temperature are set separately: an area is 790 DEG C, two areas 825
DEG C, 835 DEG C of 4th area 3rd areas, 840 DEG CHe, total Quench heating time be 45min；
S2, quenching cooling: rear axle bearing outer-ring of coming out of the stove falls into oil-quenching tank cooling automatically, and control quenching oil temperature makes outside bearing
Oil temperature control is irised out at 150 DEG C, agitating device and circulating pump in oil-quenching tank are not opened；
S3, data collection: after bearing outer ring is fuel-displaced, operator picks out while hot with high temperature protection gloves, rapid survey axis
Maximum value and minimum value, the maximum value and minimum value of bearing outer ring height of bearing outer-ring outer diameter, by the maximum value of outer diameter and height
Computer is inputted with minimum value, so that computer calculates the average value of outer diameter average value and height after bearing outer ring quenching, into
And the optimum level operation displacement of oval correction gripping block and the best vertical operation displacement of warp correction compact heap are obtained, then
Bearing outer ring is placed in dressing plate center.
S4, it corrects while hot: so repeating S3 movement, until the best bearing holder (housing, cover) for piling up quantity has been piled up in 10 center of dressing plate
It after circle, is corrected by computer starting ellipse: electric cylinders 51 being corrected by No.1 ellipse first and No. two oval correction electric cylinders 52 are distinguished
Driving No.1 ellipse correction gripping block 71 and No. two ellipses correct gripping blocks 72 and reach pre- clamping position from initial zero position Tong Shi
It sets, the bearing outer ring piled up is close to oval correction 7 cylindrical surface of gripping block and is placed, then corrects 53 He of electric cylinders by No. three ellipses
No. four oval correction electric cylinders 54 respectively drive No. three oval correction gripping blocks 73 and No. four oval correction gripping blocks 74 from initial zero
Position sets out reach pre- clamped position simultaneously, so that bearing outer ring is entered pre- clamped condition, controls finally by computer, and starting is oval
The instantaneous impact for correcting gripping block 7 makes four oval correction gripping blocks 7 while enabling clamping, it is made to reach optimum operation position
Terminal is moved, clamped condition is kept.
S5, correction warpage: after bearing outer ring ellipse corrects, pass through computer starting warp correction: by warp correction
Electric cylinders 11 drive warp correction compact heap 14 to reach pre-pressing position from initial zero position, and bearing outer ring is made to enter pre-pressing shape
Then state is controlled by computer, start the instantaneous impact of warp correction compact heap 14, enables warp correction compact heap 14
It compresses, so that it is reached optimum operation displacement terminal, keep impaction state.
S6, unloading are recalled: after bearing outer ring keeps impaction state 3min, being controlled correction unloading by computer and recalled: four
A oval correction gripping block 7 and warp correction compact heap 14 unload simultaneously, are retracted into pre- clamped position and pre-pressing position respectively,
Then initial zero position is recalled simultaneously.
S7, tempering: removing bearing outer ring, is tempered into free-standing tempering furnace；180 DEG C of tempering temperature, tempering time 4h.
Claims (7)
1. a kind of device of correcting quenching rear axle bearing outer-ring, characterized by comprising: rack, oval aligning gear and warp correction
Mechanism；The ellipse aligning gear is located at frame lower, is fixedly mounted on the rack, and the warp correction mechanism is located at oval school
The top of positive mechanism, is fixedly mounted on upper rack；
The rack includes top plate (1), warp correction directive slide track (2), pedestal (3), level(l)ing mechanism (4), the warpage
Top plate (1) and pedestal (3) is bolted in correction directive slide track (2), and the level(l)ing mechanism (4) is mounted on pedestal (3)
Following four corners at, with the Level tune of realization device；
The ellipse aligning gear includes oval correction electric cylinders (5), oval correction push rod (6), oval correction gripping block (7), ellipse
Circle correction directive slide track (8), electric cylinders fixed plate (9) and dressing plate (10)；Oval correction electric cylinders (5) bottom is fixedly mounted
On electric cylinders fixed plate (9), ellipse correction electric cylinders (5) output shaft is connect by shaft coupling with ellipse correction push rod (6), described ellipse
Circle correction gripping block (7) is mounted on oval correction push rod (6), the electric cylinders fixed plate (9) and oval correction directive slide track (8)
It is mounted on dressing plate (10), the dressing plate (10) is fixedly mounted on pedestal (3)；
The warp correction mechanism include warp correction electric cylinders (11), warp correction push rod (12), warp correction sliding block (13) and
Warp correction compact heap (14), warp correction electric cylinders (11) bottom are fixedly mounted on top plate (1), warp correction electric cylinders
(11) output shaft is connect by shaft coupling with warp correction push rod (12), and the warp correction sliding block (13) is mounted on warp correction
Below push rod (12), the warp correction warp correction compact heap (14) is mounted below warp correction sliding block (13)；
The ellipse aligning gear and warp correction mechanism are all made of electric cylinders as drive system；
Oval correction gripping block (7) includes identical No.1 ellipse correction gripping block (71), No. two oval corrections
Gripping block (72), No. three oval corrections gripping block (73), No. four oval corrections gripping block (74), material is heat-resistance stainless steel；It is ellipse
The cylindrical surface diameter d of circle correction gripping block (7)1The cylindrical surface of=outer diameter average value ± 0.02mm, ellipse correction gripping block (7) are high
Spend h1=n* height average ± 0.02mm, n are the quantity of primary correction bearing outer ring；The cylindrical surface arc length is less than should
The a quarter of circumference；Oval correction gripping block (7) curved surface and with the contact surface of dressing plate (10) be shiny surface and
It is mutually perpendicular to；
The material of the warp correction compact heap (14) is heat-resistance stainless steel, and diameter is less than bearing outer ring outer diameter；Assuming that bearing
Outer ring outer diameter is D, and channel d, warp correction compact heap (14) diameter is d2, diameter d2Meet * 3/4 < d of relationship d+ (D-d)2<
D；The cylindrical surface height h of warp correction compact heap (14)2According to the cylindrical surface design height h of oval correction gripping block (7)1, bearing
The quantity n of the height h of outer ring and primary correction bearing outer ring is obtained, and meets relationship h2> h1-n*h；What is contacted with bearing outer ring sticks up
The disc of Qu Jiaozheng compact heap (14) is shiny surface；
Oval correction gripping block (7) and warp correction compact heap (14) are removable.
2. a kind of device of correcting quenching rear axle bearing outer-ring according to claim 1, it is characterised in that: the oval school
Positive mechanism is set there are four oval correction electric cylinders (5), and ellipse correction electric cylinders (5) is pacified by bolt along dressing plate (10) center line
Dress, and can be adjusted, be distributed on dressing plate (10) in cruciform symmetry with oval correction electric cylinders (5) of guarantee and be in same
Level height.
3. a kind of device of correcting quenching rear axle bearing outer-ring according to claim 1, it is characterised in that: the warp correction
The central axis adjusting of electric cylinders (11), warp correction push rod (12), warp correction sliding block (13) and warp correction compact heap (14)
It is installed to same vertical central axis, to guarantee warp correction compact heap (14) in the operation of vertical direction and loading procedure not
It shifts；Lubrication system is equipped at the cooperation of warp correction sliding block (13) and the warp correction directive slide track (2) of rack, to protect
Demonstrate,prove the stability and reliability of operation.
4. a kind of device of correcting quenching rear axle bearing outer-ring according to claim 1, it is characterised in that: the oval correction
It is close-fitting to be equipped with corresponding oval correction directive slide track (8) for four oval correction gripping block (7) two sides in mechanism
Sliding block is equipped with lubrication system at the cooperation, to guarantee the stability and reliability of operation.
5. a kind of device of correcting quenching rear axle bearing outer-ring according to claim 1, it is characterised in that: the oval correction
The upper surface of dressing plate (10) is smooth cross plate in mechanism, to guarantee the steady of oval correction gripping block (7) movement
Qualitative and reliability.
6. a kind of device of correcting quenching rear axle bearing outer-ring according to claim 1, it is characterised in that: the oval correction
The thickness of electric cylinders fixed plate (9) is greater than 20mm in mechanism.
7. a kind of bearing calibration of the device of correcting quenching rear axle bearing outer-ring described in -6 any one according to claim 1,
Be characterized in that the following steps are included:
Step 1, low temperature quenching heating
Automatic assembly line is quenched using net belt type protective atmosphere, controlled atmosphere heating furnace is divided into four heating zones, a respectively area,
2nd area, 3rd area, 4th area, quenching temperature are set separately: an area is 790-800 DEG C, 825-835 DEG C of 2nd area, three area 840-850
840-845 DEG C of 4th area DEG CHe, total Quench heating time are 45-55min, so reduce the mesh of quenching temperature and heating speed
Be to reduce deformation as far as possible under the premise of guaranteeing that bearing outer ring hardness and tissue are gone；
Step 2, quenching cooling
Rear axle bearing outer-ring of coming out of the stove falls into oil-quenching tank cooling automatically, and control quenching oil temperature makes the control of bearing outer ring oil outlet temperature exist
120-150 DEG C, agitating device and circulating pump in oil-quenching tank are not opened；
Step 3, data collection
After bearing outer ring is fuel-displaced, operator picks out while hot with high temperature protection gloves, the maximum of rapid survey bearing outer ring outer diameter
The maximum value and minimum value of outer diameter and height are inputted and are calculated by value and minimum value, the maximum value and minimum value of bearing outer ring height
Machine so that computer calculates the average value of outer diameter average value and height after bearing outer ring quenching, and then obtains oval holder for correcting
The optimum level operation displacement of tight block (7) and the best vertical operation displacement of warp correction compact heap (14), then will be outside bearing
Circle is placed in dressing plate (10) center；
Step 4 corrects while hot
S3 movement is so repeated, until passing through calculating after the best bearing ring for piling up quantity has been piled up in dressing plate (10) center
The oval correction of machine starting, specifically: it is driven respectively by No.1 ellipse correction electric cylinders (51) and No. two oval corrections electric cylinders (52) first
Dynamic No.1 ellipse correction gripping block (71) and No. two ellipses correct gripping block (72) and reach pre- clamping from initial zero position Tong Shi
Position places the cylindrical surface that the bearing outer ring piled up is close to gripping block ellipse correction gripping block (7), then by No. three ellipses
Correction electric cylinders (53) and No. four oval corrections electric cylinders (54) respectively drive No. three oval corrections gripping block (73) and No. four oval schools
Positive gripping block (74) reaches pre- clamped position from initial zero position Tong Shi, so that bearing outer ring is entered pre- clamped condition, finally leads to
Computer control is crossed, the instant clamping power of oval correction gripping block (7) is started, make four oval corrections gripping block (7) while being opened
With clamping, so that it is reached optimum operation displacement terminal, keep clamped condition；
Step 5 corrects warpage
After bearing outer ring ellipse corrects, pass through computer starting warp correction: driving warpage by warp correction electric cylinders (11)
It corrects compact heap (14) and reaches pre-pressing position from initial zero position, so that bearing outer ring is entered pre-pressing state, then pass through
Computer control, starts the instantaneous impact of warp correction compact heap (14), enables warp correction compact heap (14) and compresses, makes
It reaches optimum operation and is displaced terminal, keeps impaction state；
Step 6, unloading are recalled
After bearing outer ring keeps impaction state 3-5min, control correction unloading by computer and recall: four oval corrections clamp
Block (7) and warp correction compact heap (14) unload simultaneously, are retracted into pre- clamped position and pre-pressing position respectively, then remove simultaneously
Return initial zero position；
Step 7, tempering
Bearing outer ring is removed, is tempered into free-standing tempering furnace；160-180 DEG C of tempering temperature, tempering time 4-5h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910247728.7A CN110038925B (en) | 2019-03-29 | 2019-03-29 | Device and method for correcting quenched bearing outer ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910247728.7A CN110038925B (en) | 2019-03-29 | 2019-03-29 | Device and method for correcting quenched bearing outer ring |
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| CN110038925B CN110038925B (en) | 2020-09-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111421018A (en) * | 2020-03-12 | 2020-07-17 | 山东东山古城煤矿有限公司 | Continuous coal mine scraper straightening device |
| CN113351811A (en) * | 2021-05-12 | 2021-09-07 | 苏州市东盛锻造有限公司 | Annular forging processing method based on numerical control automatic hydraulic ring rolling mill |
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| JP2004082169A (en) * | 2002-08-27 | 2004-03-18 | Sumitomo Electric Ind Ltd | Extruded material and method for straightening it |
| JP2009262178A (en) * | 2008-04-23 | 2009-11-12 | Cvtec:Kk | Apparatus and method for correcting shape |
| CN104328266A (en) * | 2014-12-02 | 2015-02-04 | 江阴吉爱倍万达精工有限公司 | Heat treatment process of large-diameter thin-walled bearing ring |
| CN108300848A (en) * | 2018-05-03 | 2018-07-20 | 洛阳Lyc轴承有限公司 | A kind of light narrow series bearing ring warpage and elliptical bearing calibration |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004082169A (en) * | 2002-08-27 | 2004-03-18 | Sumitomo Electric Ind Ltd | Extruded material and method for straightening it |
| JP2009262178A (en) * | 2008-04-23 | 2009-11-12 | Cvtec:Kk | Apparatus and method for correcting shape |
| CN104328266A (en) * | 2014-12-02 | 2015-02-04 | 江阴吉爱倍万达精工有限公司 | Heat treatment process of large-diameter thin-walled bearing ring |
| CN108300848A (en) * | 2018-05-03 | 2018-07-20 | 洛阳Lyc轴承有限公司 | A kind of light narrow series bearing ring warpage and elliptical bearing calibration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111421018A (en) * | 2020-03-12 | 2020-07-17 | 山东东山古城煤矿有限公司 | Continuous coal mine scraper straightening device |
| CN113351811A (en) * | 2021-05-12 | 2021-09-07 | 苏州市东盛锻造有限公司 | Annular forging processing method based on numerical control automatic hydraulic ring rolling mill |
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| Publication number | Publication date |
|---|---|
| CN110038925B (en) | 2020-09-25 |
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