CN101913072B - Tooling for press mounting of drive cover and bearing, and press mounting process thereof - Google Patents
Tooling for press mounting of drive cover and bearing, and press mounting process thereof Download PDFInfo
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- CN101913072B CN101913072B CN2010102550277A CN201010255027A CN101913072B CN 101913072 B CN101913072 B CN 101913072B CN 2010102550277 A CN2010102550277 A CN 2010102550277A CN 201010255027 A CN201010255027 A CN 201010255027A CN 101913072 B CN101913072 B CN 101913072B
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- positioning seat
- support column
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Abstract
The invention discloses a tooling for press mounting of a drive cover and a bearing, and a press mounting process thereof. The tooling for the press mounting of the drive cover and the bearing comprises a support column installed on a base, a sliding sleeve sleeved on the support column and a detachable positioning seat, wherein the lower end face of the positioning seat is in fit with the upper end face of the sliding sleeve, and the upper end face of the positioning seat is in fit with the positioning face of the drive cover. A central spindle coincided with the the axis of the support column is arranged in the support column. The outer diameter of the central spindle top is larger than the inner diameter of the bearing by 0.005mm-0.02mm. The bottom of the central spindle is provided with a lower broaching. The press mounting process comprises the following steps: a, selecting the positioning seat matching with the drive cover and installing the positioning seat; b, pressing the top end of a core shaft into the inner hole of the bearing; c, putting the drive cover on the positioning seat to enable the drive cover to match with the positioning face of the positioning seat; d, pressing the drive cover down to press the bearing into the bearing hole on the drive cover; and e, separating the top end of the core shaft from the inner hole of the bearing. The invention is suitable for the press mounting of drive covers and bearings.
Description
Technical field
The present invention relates to the vehicle-mounted starting field of motor manufacturing, relate in particular to a kind of starter drive cover bearing press mounting and use frock
Background technology
The vehicle-mounted starting motor mainly is made up of stator, rotor, brush holder, drive cover assembly, brush cover assembly.Motor is wanted operate as normal, and the drive cover assembly of motor must guarantee to assemble superincumbent stator, rotor, isolator, electromagnetic switch no-float.Motor-driven lid quality is extremely important, plays to accept the core part that motor and engine assembling and motor electromagnetic switch, stator, rotor rigging position concern.The drive cover bearing press mounting plays crucial effects, and its assembly quality is concerning motor performance and life-span.
The drive cover bearing press mounting mainly contains dual mode: one, direct pressure closing: adopt aerostatic press directly bearing holder (housing, cover) to be loaded on the mandrel, be pressed in the drive cover bearing chamber, mandrel is than the little 0.02mm of brearing bore; Two, turgor pressure method is loaded on bearing holder (housing, cover) on the mandrel than the big 0.01mm of its endoporus, with casing top half bearing is pressed in the drive cover bearing chamber, and the bearing big 0.008mm that risen adopts down cylinder that mandrel is left behind.Direct pressure closing can make bearing bore diameter diminish, and causes reducer output shaft and bearing poor fit, causes the motor friction big, and electric current is big, and it is fast that the motor feels hot, cause motor performance poor, but this type tool structure is simple.The turgor pressure method can satisfy higher assembly precision, be to adopt more fit at present, but the tool structure of turgor pressure method is complicated than the direct pressure closing tool structure, and new product of every exploitation all will be made a cover turgor pressure method frock, and manufacturing cost is high, the time is long.
Summary of the invention
The technical problem that the present invention solves is, provides the starter drive cover bearing press mounting that can implement the turgor pressure method use frock, and the while can adapt to the end cap of multiple different size again.
The technical scheme that the present invention adopts is that the drive cover bearing press mounting is used frock, comprises the support column that is installed on base; Be set in the slip cap on the support column, also comprise a detachable positioning seat, the upper surface of positioning seat lower surface and slip cap is suitable; The locating surface of positioning seat upper surface and drive cover is suitable; Be provided with the mandrel with the support column axis coinciding in the said support column, the external diameter on mandrel top is than the big 0.005mm to 0.02mm of brearing bore diameter, and the mandrel bottom is provided with down pulling eye.
Said positioning seat and support column are slidingly matched.
The external diameter on said mandrel top and the magnitude of interference of bearing are 0.008mm.
Said slip cap has the elastic top selection structure.
Said elastic top pushing mechanism comprises spring and the guide post that is set in the spring, and the guide post upper end is connected in slip cap, and the support arm of guide post is by spring push, and the guide post telescopic hole that is provided with on the base plate of guide post lower end and support column is corresponding.
Said spring and guide post are at least one group.
The drive cover bearing press mounting is used frock; Comprise the support column that is installed on base; Be set in the slip cap on the support column, also comprise a detachable positioning seat, the upper surface of positioning seat lower surface and slip cap is suitable; The locating surface of positioning seat upper surface and drive cover is suitable, is provided with the mandrel with the support column axis coinciding in the said support column.This drive cover bearing press mounting may further comprise the steps with the press-loading process of frock:
A chooses the positioning seat (4) that is complementary with drive cover, positioning seat (4) is installed on the recruitment of drive cover bearing press mounting loads onto;
B is pressed in bearing (10) endoporus by the top of drive unit with mandrel (8);
C is positioned over drive cover on the positioning seat (4), and drive cover is cooperated with the locating surface of positioning seat (4);
D, by drive unit with drive cover to pressing down, bearing (10) is pressed in the dead eye on the drive cover;
E spurs mandrel (8) downwards by drive unit, makes the endoporus of the top disengaging bearing (10) of mandrel (8).
Said bearing (10) is an interference fit with the top of mandrel (8), and the magnitude of interference is 0.002mm to 0.01mm.
The drive unit of said step b, d, e is cylinder.
The invention has the beneficial effects as follows that utilize a cover frock to only depend on better positioning seat can satisfy the drive cover of different size and press-fiting of bearing, the equipment cost of saving has improved utilization rate of equipment and installations.Utilize the turgor pressure method to press-fit, can obtain higher assembly precision.
Description of drawings
Fig. 1 is a stereogram of the present invention.
Fig. 2 is the cutaway view of frock of the present invention along axis.
Fig. 3 is drive cover view to be press-fited.
Fig. 4 is an elastic top selection structure part partial enlarged drawing.
Be labeled as among the figure: 1-base, 2-support column, 3-slip cap, 4-positioning seat, 5-spring, 6-guide post, 7-guide post telescopic hole, 8-mandrel, 9-drive cover, 10-bearing, 11-support arm, pulling eye under the 12-.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further explanation.
In the existing frock location of drive cover 9 is realized through the slip cap 3 that is set on the support column; The upper surface shape of slip cap 3 and the locating surface shape of drive cover 9 are suitable; All have along the axial keyway of support column on slip cap 3 and the support column relative position; Feather key in the keyway limits the circumferential free degree of slip cap 3, allows slip cap 3 axially to move up and down along support column simultaneously.Because drive cover 9 diversified in specifications the causing of different product, the locating surface of slip cap 3 can not adapt to a plurality of products, and slip cap 3 is connected as a single entity with whole frock, so just needs the many covers of preparation frocks.Manufacturing cost is high, the time is long, also might cause the idle of equipment.The present invention has carried out following improvement, and like Fig. 1, shown in Figure 2, the drive cover bearing press mounting is used frock; Comprise the support column 2 that is installed on base 1; Be set in the slip cap 3 on the support column 2, also comprise a detachable positioning seat 4, the upper surface of positioning seat 4 lower surfaces and slip cap 3 is suitable; The locating surface of positioning seat 4 upper surfaces and drive cover 9 is suitable; Be provided with the mandrel 8 with support column 2 axis coincidings in the said support column 2, the external diameter on mandrel 8 tops is than the big 0.005mm to 0.02mm of bearing 10 diameter of bores, and mandrel 8 bottoms are provided with down pulling eye 12.
The shape of the lower surface of positioning seat 4 guarantees the upper surface coupling with existing glide cover 3, guarantees positioning seat 4 and with respect to the accurate location of a whole set of frock.The shape of the upper surface of positioning seat 4 matches with the locating surface of the drive cover 9 of correspondence, plays the positioning action to drive cover 9.Positioning seat 4 can disassemble easily and install on a whole set of frock.Same set of frock, the drive cover 9 of corresponding different size only needs to change corresponding positioning seat 4 and gets final product.Drive cover bearing press mounting of the present invention can adapt to the drive cover 9 of different size and press-fiting of bearing 10 with frock, and has improved the utilization rate of frock.
Said positioning seat 4 is slidingly matched with support column 2.Strengthen accurate location through being slidingly matched of support column and positioning seat 4 to positioning seat 4.
Be provided with the mandrel 8 with support column 2 axis coincidings in the said support column 2, the external diameter on mandrel 8 tops is than the big 0.005mm to 0.02mm of bearing 10 diameter of bores, and mandrel 8 bottoms are provided with down pulling eye 12.As preferred implementation, the external diameter on said mandrel 8 tops and the magnitude of interference of bearing 10 are 0.008mm.The assembly work first step is pressed into mandrel 8 tops with bearing 10 exactly, and bearing 10 internal diameters are swollen slightly, and through the location that mandrel 8 is realized bearing 10, casing top half is exerted pressure drive cover 9 and bearing 10 are press-fited.The following pulling eye 12 of cylinder hook and mandrel 8 under the pushing tow and the drop-down acting in conjunction of cylinder to mandrel 8 of 2 pairs of bearings 10 of support column, breaks away from mandrel 8 under passing through then from bearing 10 endoporus.
In order to realize with the motion space of drive cover 9 and bearing 10 pressings and press-fit the automatic discharging of back product that said slip cap 3 has the elastic top selection structure.Said elastic top pushing mechanism comprises spring 5 and the guide post 6 that is set in the spring 5, and guide post 6 upper ends are connected in slip cap 3, and the support arm 11 of guide post is by spring 5 pushing tows, and the guide post telescopic hole 7 that is provided with on the base plate of guide post 6 lower ends and support column 2 is corresponding.Guide post 6 plays the effect to the guiding of spring 5 and transmission spring 5 thrusts; When enforcement press-fits action; Drive cover 9, positioning seat 4, slip cap 3, guide post 6 move downward together, and spring 5 is compressed, and guide post 6 lower ends get into the guide post telescopic hole 7 that is provided with on the base plate of support column 2.Press-fit and mandrel 8 detaches rear spring 5 with guide post 6, slip cap 3, positioning seat 4, drive cover bearing assembly pushing tow upwards together.
In order to obtain better pushing tow effect, said spring 5 and guide post 6 are at least one group.
The drive cover bearing press mounting is used frock; Comprise the support column that is installed on base; Be set in the slip cap on the support column, also comprise a detachable positioning seat, the upper surface of positioning seat lower surface and slip cap is suitable; The locating surface of positioning seat upper surface and drive cover is suitable, is provided with the mandrel with the support column axis coinciding in the said support column.This drive cover bearing press mounting may further comprise the steps with the press-loading process of frock:
A chooses the positioning seat (4) that is complementary with drive cover, positioning seat (4) is installed on the recruitment of drive cover bearing press mounting loads onto;
B is pressed in bearing (10) endoporus by the top of drive unit with mandrel (8);
C is positioned over drive cover on the positioning seat (4), and drive cover is cooperated with the locating surface of positioning seat (4);
D, by drive unit with drive cover to pressing down, bearing (10) is pressed in the dead eye on the drive cover;
E spurs mandrel (8) downwards by drive unit, makes the endoporus of the top disengaging bearing (10) of mandrel (8).
Said bearing (10) is an interference fit with the top of mandrel (8), and the magnitude of interference is 0.002mm to 0.01mm.
The drive unit of said step b, d, e is cylinder.
Embodiment: support column 2 lower ends are the plate-like cylinder, and thickness is little, floor space is bigger, and cylindrical edge has three bolts hole, are connected through bolt with base 1, make support column 2 more stable with being connected of base 1.On the plate-like cylinder of support column 2 is elongate cylinder, is set with slip cap 3 on it, and slip cap 3 endoporus and support column 2 are slidingly matched, flexible pushing tow structure between the dish dress cylinder of slip cap 3 and support column 2 lower ends.The elastic top selection structure comprises spring 5, is connected in the guide post 6 of slip cap; Draw together the spacing of support arm 11 that spring 5 upper ends receive guide post 6; The bottom receives the supporting of support column 2 lower end cylinder upper surfaces; And have guide post telescopic hole 7 on the support column 2 lower end cylinders He on the base 1, spring 5 and guide post 6 have 3 groups.Slip cap 3 is provided with positioning seat 4, and the shape of positioning seat 4 bottom surfaces and slip cap 3 upper surfaces is suitable, and support column 2 is slidingly matched with positioning seat 4 positioning seat 4 is played positioning action.Positioning seat 4 upper surfaces have boss, and are suitable with the groove on the drive cover end face.Also have a plurality of circular holes on the positioning seat 4, can alleviate the weight of positioning seat 4, make a whole set of frock light as far as possible.
When carrying out press-loading process, at first find the positioning seat 4 corresponding to drive cover, the cylinder suit that positioning seat 4 endoporus are aimed at support column 2 is on it, and positioning seat 4 is stacked with slip cap 3, has to be slidingly matched with support column 2 simultaneously; Next step is aimed at bearing 10 on the cylinder of support columns 2 upper ends and depresses, bearing 10 endoporus and support column 2 external cylindrical surfaces be interference fit, the magnitude of interference is 0.008mm; Next step; Drive cover is positioned positioning seat 4, and casing top half imposes downward pressure to drive cover, and the elastic top pushing mechanism is compressed; Slip cap 3, positioning seat 4 move downward with drive cover, and bearing 10 is pressed into the dead eye on the drive cover under the suppressing action of the supporting of support column 2 and drive cover; Need the drive cover bearing assembly that assemble be taken off from frock below, because mandrel 8 and bearing 10 interference fit need through the following pulling eye 12 on the cylinder pulling mandrel 8 mandrel to be extracted out; Under the effect of elastic top pushing mechanism, slip cap 3, positioning seat 4 move upward with the drive cover bearing assembly, accomplish assembling process.
Claims (7)
1. the drive cover bearing press mounting is used frock; Comprise the support column (2) that is installed on base (1); Be set in the slip cap (3) on the support column (2), it is characterized in that: also comprise a detachable positioning seat (4), the upper surface of positioning seat (4) lower surface and slip cap (3) is suitable; The locating surface of positioning seat (4) upper surface and drive cover (9) is suitable; Be provided with the mandrel (8) with support column (2) axis coinciding in the said support column (2), the external diameter on said mandrel (8) top is than the big 0.005mm to 0.02mm of bearing (10) diameter of bore, and mandrel (8) bottom is provided with down pulling eye (12).
2. drive cover bearing press mounting as claimed in claim 1 is used frock, it is characterized in that: said positioning seat (4) is slidingly matched with support column (2).
3. drive cover bearing press mounting as claimed in claim 1 is used frock, it is characterized in that: the external diameter on said mandrel (8) top and the magnitude of interference of bearing (10) are 0.008mm.
As 1 to 3 in the described drive cover bearing press mounting of any claim use frock, it is characterized in that: said slip cap (3) has the elastic top selection structure.
5. drive cover bearing press mounting as claimed in claim 4 is used frock; It is characterized in that: said elastic top pushing mechanism comprises spring (5) and is set in the guide post (6) in the spring (5); Guide post (6) upper end is connected in slip cap (3); The support arm of guide post (11) is by spring (5) pushing tow, and the guide post telescopic hole (7) that is provided with on the base plate of guide post (6) lower end and support column (2) is corresponding.
6. drive cover bearing press mounting as claimed in claim 5 is used frock, it is characterized in that: said spring (5) and guide post (6) are at least one group.
7. press-loading process that adopts the described drive cover bearing press mounting of claim 1 with frock may further comprise the steps:
A chooses the positioning seat (4) that is complementary with drive cover, positioning seat (4) is installed on the recruitment of drive cover bearing press mounting loads onto;
B is pressed in bearing (10) endoporus by the top of drive unit with mandrel (8);
C is positioned over drive cover on the positioning seat (4), and drive cover is cooperated with the locating surface of positioning seat (4);
D, by drive unit with drive cover to pressing down, bearing (10) is pressed in the dead eye on the drive cover;
E spurs mandrel (8) downwards by drive unit, makes the endoporus of the top disengaging bearing (10) of mandrel (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102550277A CN101913072B (en) | 2010-08-17 | 2010-08-17 | Tooling for press mounting of drive cover and bearing, and press mounting process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102550277A CN101913072B (en) | 2010-08-17 | 2010-08-17 | Tooling for press mounting of drive cover and bearing, and press mounting process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101913072A CN101913072A (en) | 2010-12-15 |
| CN101913072B true CN101913072B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102550277A Active CN101913072B (en) | 2010-08-17 | 2010-08-17 | Tooling for press mounting of drive cover and bearing, and press mounting process thereof |
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| CN (1) | CN101913072B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1158324A1 (en) * | 1983-12-07 | 1985-05-30 | Днепропетровский Филиал Проектно-Конструкторского Технологического Института Автоматизации И Механизации | Apparatus for setting resilient lock rings into casing part |
| US6415489B1 (en) * | 1999-07-29 | 2002-07-09 | Morgan Construction Company | Hydraulically actuated tool for mounting and dismounting rolling mill roll neck bearings |
| CN200981152Y (en) * | 2006-12-14 | 2007-11-28 | 许晓华 | Worm front bearing press mounting device |
| CN201015822Y (en) * | 2006-12-15 | 2008-02-06 | 许晓华 | Worm gear case shaft- projecting hole grease sealing and press-loading device |
| CN201128062Y (en) * | 2007-12-14 | 2008-10-08 | 广州市嘉特斯机电制造有限公司 | Bearing press fitting device |
| CN201208692Y (en) * | 2008-06-08 | 2009-03-18 | 龙口海盟机械有限公司 | Apparatus for press mounting automobile brake disc bearing shell |
| CN201544010U (en) * | 2009-10-29 | 2010-08-11 | 刘子龙 | Cableway wheel liner and bearing pressing device |
| CN201750296U (en) * | 2010-08-17 | 2011-02-16 | 成都华川电装有限责任公司 | Tool for bearing press-mounting of driving cover |
| CN101924428B (en) * | 2010-09-26 | 2012-09-05 | 成都华川电装有限责任公司 | Bearing pressmounting device applied to speed reducer housing and pressmounting method thereof |
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- 2010-08-17 CN CN2010102550277A patent/CN101913072B/en active Active
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| CN101913072A (en) | 2010-12-15 |
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