CN106216961A - A kind of processing method of the integrated pivoted arm of RV bearing in reduction gears - Google Patents
A kind of processing method of the integrated pivoted arm of RV bearing in reduction gears Download PDFInfo
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- CN106216961A CN106216961A CN201610694770.XA CN201610694770A CN106216961A CN 106216961 A CN106216961 A CN 106216961A CN 201610694770 A CN201610694770 A CN 201610694770A CN 106216961 A CN106216961 A CN 106216961A
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- hand rotation
- rotation arm
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- bearing
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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
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Abstract
The processing method that the invention discloses a kind of integrated pivoted arm of RV bearing in reduction gears, it is characterised in that comprise the steps: a, left-hand rotation arm and right-hand rotation arm are carried out blank forging；B, left-hand rotation arm blank and right-hand rotation arm blank are carried out roughing；C, the left-hand rotation arm after roughing and right-hand rotation arm are carried out heat treatment；D, left-hand rotation arm and right-hand rotation arm are carried out polish；E, the left-hand rotation arm after polish and right-hand rotation arm are carried out superfinishing Vehicle Processing；In step a, left-hand rotation arm uses die forging processing.The invention provides a kind of clamped one time, simultaneously processing three taper roll bearing holes of pivoted arm and the processing method of raceway in angular contact ball bearing, this processing method can solve the processing difficulties of the integrated pivoted arm of RV bearing in reduction gears, and be capable of batch production.
Description
Technical field
The present invention relates to field of machining, particularly to the processing method of a kind of integrated pivoted arm of RV bearing in reduction gears.
Background technology
High performance accurate control transmission is machine driving key technology during development of modern industry.And closely
Common concern and great attention is had been subjected to over Nian.RV robot decelerator has that transmission accuracy is high, return difference is little, good rigidly, body
Long-pending little, gear ratio big, bearing capacity advantages of higher, so being widely used in automobile and auto parts and components manufacture, packing, cure
The field such as medicine, space flight.The simple in construction of robot RV reducer, is made up of primary planet transmission and one-level cyclo drive.Mainly
Part includes pin wheel housing, pivoted arm, eccentric shaft, Cycloidal Wheel, planetary gear, centre wheel and be arranged between eccentric shaft and pivoted arm three
Three pairs of cylinder roller bearings to taper needle bearing, being arranged between eccentric shaft and Cycloidal Wheel, it is arranged on pin wheel housing and pivoted arm
Between two angular contact bearings composition.But it requires that transmission accuracy is high, return difference is little, has multiple sealing size chain, so right
The machining accuracy of inner body, assembly precision require the highest.Pivoted arm is the vitals of RV robot decelerator, and it includes connection
It is connected together and supports left-hand rotation arm and the right-hand rotation arm of eccentric shaft.Three taper roller axles it have been respectively mounted on this left-hand rotation arm and right-hand rotation arm
Holding, this tapered roller bearing internal ring coordinates outer ring to coordinate with pivoted arm with eccentric shaft, left and right pivoted arm taper roll bearing mounting hole site
Degree of putting requirement is high.The pivoted arm precision using existing Conventional processing methods to make is inadequate, is extremely difficult to fine demand.
In view of this, the special proposition present invention.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, it is provided that a kind of RV bearing in reduction gears is integrated
The processing method of pivoted arm, solves to improve product fine degree.
Inventor finds in test of many times, and when the cooperation of this bearing internal external reaches zero windage or negative play, guarantee produces
Product precision is enough.It addition, left-hand rotation arm and right-hand rotation arm are integrated with raceway in two angular contact ball bearings respectively, angular contact ball bearing
Interior raceway is the highest with the axiality of three taper roll bearing installing holes of pivoted arm, and product the most more meets the requirements, two angular contact
The interior raceway center distance tolerance of bearing is the most accurate, and product the most more meets the requirements.
For solving above-mentioned technical problem, the present invention uses the basic conception of technical scheme to be:
The processing method of a kind of integrated pivoted arm of RV bearing in reduction gears, comprises the steps:
A, left-hand rotation arm and right-hand rotation arm are carried out blank forging；
B, left-hand rotation arm blank and right-hand rotation arm blank are carried out roughing；
C, the left-hand rotation arm after roughing and right-hand rotation arm are carried out heat treatment；
D, left-hand rotation arm and right-hand rotation arm are carried out polish；
E, the left-hand rotation arm after polish and right-hand rotation arm are carried out superfinishing Vehicle Processing；
In step a, left-hand rotation arm uses die forging processing.
Above-mentioned RV bearing in reduction gears integrated pivoted arm processing method, described step c includes following sub-step:
C-1, the left-hand rotation arm after roughing and right-hand rotation arm are carried out modifier treatment；
C-2, left-hand rotation arm and the right-hand rotation arm of waiting modifier treatment carry out shot peening；
C-3, the left-hand rotation arm after shot peening strengthening and right-hand rotation arm are carried out Ageing Treatment.
Above-mentioned RV bearing in reduction gears integrated pivoted arm processing method, the condition of described Ageing Treatment is 100-150 DEG C, keeps
5-20 hour, then natural cooling.
Above-mentioned RV bearing in reduction gears integrated pivoted arm processing method, described step c also includes:
C-4, raceway in the angular contact ball bearing of left-hand rotation arm and right-hand rotation arm is carried out high-frequency quenching.
Above-mentioned RV bearing in reduction gears integrated pivoted arm processing method, described step d method particularly includes:
Polish left and right pivoted arm cylindrical, clamping cylindrical carries out semifinishing to centre bore, and to left-hand rotation arm A face, right-hand rotation arm B enters in face
Row polish, it is ensured that A face, B face and pivoted arm cylindrical perpendicularity 0.004, processes left/right rotation arm bolt hole.
With bolt, left-hand rotation arm is linked together with right-hand rotation arm, clamps three pin-and-holes of cylindrical align reaming, alignment pin is installed, it is ensured that
The installation location of left and right pivoted arm；Polish centre bore afterwards, it is ensured that following process reference precision；And outside the two of left and right pivoted arm
End face does installation telltale mark, it is ensured that installing during use positions consistent with the installation positioning scenarios in the course of processing.
Above-mentioned RV bearing in reduction gears integrated pivoted arm processing method, described step e includes fine turning operation:
On the basis of centre bore, raceway, three taper roll bearings in the angular contact ball bearing of superfinishing car left-hand rotation arm and right-hand rotation arm
Endoporus and left-hand rotation arm and the end face of right-hand rotation arm.
Above-mentioned RV bearing in reduction gears integrated pivoted arm processing method, described fine turning operation uses pin at left-hand rotation arm and right-hand rotation arm
Carry out under conditions of location, bolt fastening.
Above-mentioned RV bearing in reduction gears integrated pivoted arm processing method, described step e also includes that the fine grinding after fine turning operation operates:
On the basis of centre bore, in the angular contact ball bearing of fine grinding left-hand rotation arm and right-hand rotation arm in raceway and taper roll bearing
Hole.
Above-mentioned RV bearing in reduction gears integrated pivoted arm processing method, the superfinishing car of left-hand rotation arm and right-hand rotation arm, fine grinding operation are in perseverance
Carry out under the conditions of temperature.
Above-mentioned RV bearing in reduction gears integrated pivoted arm processing method, the temperature of described constant temperature is 25 ± 2 DEG C.
After using technique scheme, the present invention compared with prior art has the advantages that
The present invention turn left arm use die forging processing technique, die forging machines rear left pivoted arm three muscle and adds without machining, saving
Work cost, saves process time, and intensity also can promote；Right-hand rotation arm configuration simply uses routine forging without gusset, simply saves trouble.
Accompanying drawing explanation
Fig. 1 is the split axle side structure schematic diagram of RV reductor pivoted arm of the present invention.
Fig. 2 is the overall processing structural representation of RV reductor pivoted arm of the present invention.
Fig. 3 is the generalized section in AA direction in Fig. 2.
In above-mentioned accompanying drawing: 1-left-hand rotation arm；2-right-hand rotation arm；3-taper roll bearing bearing position；4-center wheel bore；5-right-hand rotation arm
B face；6-left-hand rotation arm A face；7-couples pin-and-hole；8-coupling bolt hole；9-left-hand rotation arm gusset；Raceway in 10-angular contact ball bearing；
11-hardened area.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment, the invention will be further described, to help understanding present disclosure.
In order to solve above-mentioned processing problems, the present invention proposes a kind of clamped one time, simultaneously three the circular cone rollings of processing pivoted arm
Sub-dead eye and the processing method of raceway in angular contact ball bearing, this processing method can solve the integrated pivoted arm of RV bearing in reduction gears
Processing difficulties, and be capable of batch production.
As shown in Figure 1, Figure 2 and Figure 3, this integrated pivoted arm structure of RV bearing in reduction gears includes left-hand rotation arm 1 and right-hand rotation arm 2, left
Uniform three left-hand rotation arm gussets 9 on pivoted arm 1, on left-hand rotation arm gusset 9, the correspondence position with right-hand rotation arm is respectively arranged with attachment bolt
Hole 8 and connection pin-and-hole 7.Taper roll bearing position 3 it is provided with on the correspondence position of two pivoted arms, during assembling, the center of two pivoted arms
Relatively, left-hand rotation arm A face 6 is relative with right-hand rotation arm B face 5 in hole 4.Left-hand rotation arm A face 6 is provided with angular contact with the edge in right-hand rotation arm B face 5
Raceway 10 in ball bearing.
As follows to the processing method of above-mentioned pivoted arm:
A, left-hand rotation arm 1 and right-hand rotation arm 2 are carried out blank forging；
Left-hand rotation arm 1 uses die forging processing technique, and die forging machines rear left pivoted arm 1 three muscle and is processed into without machining, saving
This, save process time, and intensity also can promote.Right-hand rotation arm 2 simple in construction uses routine forging without gusset.
After b, the good left and right pivoted arm blank of forging, left and right pivoted arm blank is carried out roughing, respectively rough turn cylindrical, centre bore
4, both ends of the surface and three eccentric shaft bearing holes, monolateral allowance 0.5mm of roughing, left and right rotary arm bearing raceway is also carried out rough turn, stays
Amount 0.5mm.
C, the left and right pivoted arm after roughing is carried out heat treatment:
C-1, the left-hand rotation arm 1 after roughing and right-hand rotation arm 2 are carried out modifier treatment；Being tempered after modifier treatment, modifier treatment increases
The intensity of part, plasticity and toughness, tempering reduces part residual stress and fragility.
C-2, left-hand rotation arm 1 and the right-hand rotation arm 2 of waiting modifier treatment carry out shot peening；Improve the tired strong of workpiece
Degree, increases the life-span of part, strengthens so that reductor bears alternate load ability.
C-3, change, improve the stability of pivoted arm to eliminate accurate pivoted arm size, shape in life-time service, right
Left-hand rotation arm 1 and right-hand rotation arm 2 after shot peening strengthening carry out Ageing Treatment.Before being specially polish after tempering, workpiece is added again
Heat to 100-150 DEG C, keeps 5-20 hour, then natural cooling.
C-4, raceway 10 in the angular contact ball bearing of left-hand rotation arm 1 and right-hand rotation arm 2 is carried out high-frequency quenching.Hardened area 11 is leaned on
Raceway 10 edge in nearly angular contact ball bearing, the most as shown in Figure 3.Make case depth SHD >=1.8mm, hardness 54～
60HRC.Hardened layer can effectively improve bearing service life.
D, left-hand rotation arm 1 and right-hand rotation arm 2 are carried out polish；First polish left and right pivoted arm cylindrical during polish, then presss from both sides
Holding cylindrical and centre bore 4 carries out semifinishing, then to left-hand rotation arm A face 6, right-hand rotation arm B face 5 carries out polish, it is ensured that A face, B face
With pivoted arm cylindrical perpendicularity 0.004, process left/right rotation arm bolt hole.
Then, with bolt, left-hand rotation arm 1 is linked together with right-hand rotation arm 2, clamps three pin-and-holes of cylindrical align reaming, location is installed
Pin, it is ensured that the installation location of left and right pivoted arm；Polish centre bore 4 afterwards, it is ensured that following process reference precision；And at left and right turn
Installation telltale mark is done in two outer faces of arm, it is ensured that the installation positioning scenarios installed in location and the course of processing during use
Unanimously.
E, the left-hand rotation arm 1 after polish and right-hand rotation arm 2 are carried out superfinishing Vehicle Processing；
In the case of left and right pivoted arm uses pin location, bolt fastening, on the basis of centre bore 4, superfinishing car angular contact ball bearing
Interior raceway 10, stays stock removal 0.015～0.020mm；Three taper roll bearing endoporus of superfinishing car, 0.015～0.020mm；Essence
Car both ends of the surface are to determining size；Using superfinishing car, reduce the processing capacity of follow-up fine grinding, can improve working (machining) efficiency, reduction is processed into
This.
Employing grinding machine of universal, on the basis of centre bore 4, uses clamped one time, refines raceway in two angular contact ball bearings
10 and taper roll bearing endoporus, it is ensured that hole location and the axiality of distribution circle and can ensure that in taper roll bearing
Two bearings centre-to-centre spacing a size is in the margin of tolerance, it is ensured that Line contour degree 0.0015, it is ensured that with the perpendicularity 0.002 of A benchmark.
It is different from prior art and directly determines behind position raceway 10 and circular cone in centre bore 4, two angular contact ball bearing
Roller bearing endoporus directly processes the technical scheme of finish turning fine grinding, in the present embodiment, uses first machining center hole 4, location, and
After on the basis of centre bore 4, raceway 10 in two angular contact ball bearings and taper roll bearing endoporus are carried out the side of finish turning fine grinding
Case, substantially increases machining accuracy, it is ensured that conforming product rate.
Above-mentioned left-hand rotation arm 1 and the finish turning of right-hand rotation arm 2, fine grinding are processed at constant temperature workshop, measure and carry out the most at a constant temperature,
The general temperature of the working environment of temperature preferably this pivoted arm, preferably thermostat temperature are 25 ± 2 DEG C.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. the processing method of the integrated pivoted arm of RV bearing in reduction gears, it is characterised in that comprise the steps:
A, left-hand rotation arm and right-hand rotation arm are carried out blank forging；
B, left-hand rotation arm blank and right-hand rotation arm blank are carried out roughing；
C, the left-hand rotation arm after roughing and right-hand rotation arm are carried out heat treatment；
D, left-hand rotation arm and right-hand rotation arm are carried out polish；
E, the left-hand rotation arm after polish and right-hand rotation arm are carried out superfinishing Vehicle Processing；
In step a, left-hand rotation arm uses die forging processing.
RV bearing in reduction gears the most according to claim 1 integrated pivoted arm processing method, it is characterised in that in described step c
Including following sub-step:
C-1, the left-hand rotation arm after roughing and right-hand rotation arm are carried out modifier treatment；
C-2, the left-hand rotation arm after modifier treatment and right-hand rotation arm are carried out shot peening；
C-3, the left-hand rotation arm after shot peening strengthening and right-hand rotation arm are carried out Ageing Treatment.
RV bearing in reduction gears the most according to claim 2 integrated pivoted arm processing method, it is characterised in that described Ageing Treatment
Condition be 100-150 DEG C, keep 5-20 hour, then natural cooling.
RV bearing in reduction gears the most according to claim 2 integrated pivoted arm processing method, it is characterised in that described step c is also
Including:
C-4, raceway in the angular contact ball bearing of left-hand rotation arm and right-hand rotation arm is carried out high-frequency quenching.
RV bearing in reduction gears the most according to claim 1 integrated pivoted arm processing method, it is characterised in that described step d
Method particularly includes:
Polish left and right pivoted arm cylindrical, clamping cylindrical carries out semifinishing to centre bore, and to left-hand rotation arm A face, right-hand rotation arm B enters in face
Row polish, it is ensured that A face, B face and pivoted arm cylindrical perpendicularity 0.004, processes left/right rotation arm bolt hole；
With bolt, left-hand rotation arm is linked together with right-hand rotation arm, clamps three pin-and-holes of cylindrical align reaming, alignment pin is installed, it is ensured that left,
The installation location of right-hand rotation arm；Polish centre bore afterwards, it is ensured that following process reference precision；And in two outer ends of left and right pivoted arm
Installation telltale mark is done in face, it is ensured that installing during use positions consistent with the installation positioning scenarios in the course of processing.
RV bearing in reduction gears the most according to claim 5 integrated pivoted arm processing method, it is characterised in that described step e bag
Include fine turning operation:
On the basis of centre bore, raceway, three taper roll bearings in the angular contact ball bearing of superfinishing car left-hand rotation arm and right-hand rotation arm
Endoporus and left-hand rotation arm and the end face of right-hand rotation arm.
RV bearing in reduction gears the most according to claim 6 integrated pivoted arm processing method, it is characterised in that described fine turning operation
Carry out under conditions of left-hand rotation arm and right-hand rotation arm use pin location, bolt fastening.
RV bearing in reduction gears the most according to claim 6 integrated pivoted arm processing method, it is characterised in that described step e is also
Operate including the fine grinding after fine turning operation:
On the basis of centre bore, in the angular contact ball bearing of fine grinding left-hand rotation arm and right-hand rotation arm in raceway and taper roll bearing
Hole.
9. according to the arbitrary described RV bearing in reduction gears integrated pivoted arm processing method of claim 6-8, it is characterised in that left-hand rotation arm
Superfinishing car, fine grinding operation with right-hand rotation arm are carried out under constant temperature.
RV bearing in reduction gears the most according to claim 9 integrated pivoted arm processing method, it is characterised in that described constant temperature bar
The temperature of part is 25 ± 2 DEG C.
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| CN201610694770.XA CN106216961A (en) | 2016-08-22 | 2016-08-22 | A kind of processing method of the integrated pivoted arm of RV bearing in reduction gears |
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| CN201610694770.XA CN106216961A (en) | 2016-08-22 | 2016-08-22 | A kind of processing method of the integrated pivoted arm of RV bearing in reduction gears |
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| CN110293375A (en) * | 2019-07-02 | 2019-10-01 | 浙江百润轴承有限公司 | A kind of production technology of thin-wall bearing |
| CN110345201A (en) * | 2019-07-15 | 2019-10-18 | 无锡市恒翼通机械有限公司 | Planetary reducer and its processing method |
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| CB02 | Change of applicant information | ||
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Address after: 750002 the Ningxia Hui Autonomous Region high tech Zone, Yinchuan, No. 1 plant room, room 406 Applicant after: Yinchuan power transmission technology Limited by Share Ltd Address before: 750011 the Ningxia Hui Autonomous Region Jinfeng Industrial Park, the new open street, No. 128, No. Applicant before: Yinchuan Weili Reducer Machinery Co., Ltd. |
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Inventor after: Li Abo Inventor after: Li Xiang Inventor after: Ma Wenguang Inventor before: Ma Wenguang Inventor before: Liu Xilong Inventor before: Zhang Liang Inventor before: Li Weidong |
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Application publication date: 20161214 |