CN103195825A - Punching sealing device for composite sealed bearing - Google Patents
Punching sealing device for composite sealed bearing Download PDFInfo
- Publication number
- CN103195825A CN103195825A CN2013101071300A CN201310107130A CN103195825A CN 103195825 A CN103195825 A CN 103195825A CN 2013101071300 A CN2013101071300 A CN 2013101071300A CN 201310107130 A CN201310107130 A CN 201310107130A CN 103195825 A CN103195825 A CN 103195825A
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- bearing
- punching
- pawl head
- punching press
- punch
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Abstract
The invention discloses a punching sealing device for a composite sealed bearing, and belongs to the technical field of bearing manufacturing. The punching sealing device for the composite sealed bearing is characterized in that a punching device (3) comprises a conical punching head (6) with certain conical degree at the lower end; a sliding sleeve (7) is sleeved outside the sliding part at the upper end of the conical punching head (6); an elastic punching claw head (13) which can swell around when being extruded by the conical punching head (6) is sleeved outside the punching head part at the lower end of the conical punching head (6); the upper end of the elastic punching claw head (13) is connected with the lower end of the sliding sleeve (7); a plurality of claw heads capable of punching a steel-made dustproof cover (10) inside a bearing (9) to be punched are uniformly distributed at the circumference at the lower end of the elastic punching claw head (13); and a support sleeve (8) which can be supported at the outer circle of the bearing (9) to be assembled is sleeved at the outer circle of the elastic punching claw head (13). The punching sealing device for the composite sealed bearing can being used for punching and sealing the composite sealed bearing, is high in efficiency, has improvement on production automation, and is safe and reliable.
Description
Technical field
Compound seal bearing stamping seal arrangement belongs to bearing manufacturing technology field, is specifically related to a kind of stamped sealing arrangement of making the composite seal bearing.
Background technique
Bearing is the important foundation component of all kinds of mechanized equipments, its precision, performance, life-span and reliability are to the precision of main frame, performance, life-span and reliability decisive role, simultaneously the sealing of bearing also is important technology index wherein, the compound seal bearing is a kind of novel bearing structure, it utilizes bearing outer ring gear hobbing technology that steel dust cover and bearing outer ring are combined closely, fully overcome friction torque bigger between rubber seal three lip seal structures and the bearing inner race, the phenomenon that prevented from turn-taking takes place, and increased sealing intensity, improve bearing quality and working life, but this kind bearing on the make needs the steel dust cover in the curved change of punching press palintrope and embeds in the seal groove, make the steel dust cover fastening with the wedge angle phase interlock of gear hobbing, associated sealing arrangement for bearings under the prior art and processing method can't reach this kind effect, and the mode of artificial assembling is mostly adopted in the existing bearing sealing, inefficiency, so be badly in need of changing existing bearing seal technology thinking, develop a kind of novel compound seal bearing stamping seal arrangement.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, providing a kind of can carry out punching press sealing, efficient height, the raising production automation and safe and reliable compound seal bearing stamping seal arrangement to the compound seal bearing.
The technical solution adopted for the present invention to solve the technical problems is: this compound seal bearing stamping seal arrangement, comprise press machine, it is characterized in that: piston ram below fixed installation one punch assembly of described press machine, the worktable top installation one of press machine and the bearing fixing upender of the vertical coaxial setting of punch assembly are taken advantage of in the bearing fixing upender and are adorned bearing to be assembled; Described punch assembly comprises that the lower end has the tapered punch of tapering, sliding parts outside, tapered punch upper end is with sliding sleeve, tapered punch lower end drift portion of external be be subjected to tapered punch extruding can to around the elasticity punching press pawl head that expands, elasticity punching press pawl head upper end links together with the sliding sleeve lower end, but the pawl head of steel dust cover in the elasticity punching press pawl head a plurality of punching presses of the lower end circumference uniform distribution bearing to be assembled, elasticity punching press pawl head outer ring is with the supporting sleeve that can be supported on bearing outer ring to be assembled.Piston ram drives punch assembly and moves downward, tapered punch makes outwards expand steel dust cover in the punching press bearing to be assembled of the pawl head of elasticity punching press pawl head lower end, make behind the steel dust cover bending fasteningly with the wedge angle phase interlock of outer ring gear hobbing, reach the bearing seal purpose.
Described bearing fixing upender comprises takes advantage of the bearing fixing mould of adorning bearing to be assembled, bearing fixing mould central position has the circular groove that adapts with bearing outside diameter to be assembled, bearing fixing mould both sides are provided with back shaft and are supported on by back shaft above the lifting support of worktable, and the bearing fixing mould can rotate freely above lifting support.Because bearing to be assembled two ends all need seal, the bearing to be assembled so design of bearing fixing upender can be fixed and overturn reduces flip-flop transition, increases work efficiency, and lifting support adopts hydraulic lifting.
Described elasticity punching press pawl head adopts Elastic Steel to make and forms, and the pawl head inner ring of elasticity punching press pawl head lower end circumference has female cone identical with the tapered punch tapering, that direction is opposite.Elasticity punching press pawl head has good rebound elasticity and toughness.
Sliding parts outer ring, described tapered punch upper end is provided with external toothing, and the sliding sleeve inner ring has the internal tooth that is meshed with external toothing, and tapered punch slidably is installed in the sliding sleeve by the engagement of external toothing and internal tooth.The design of external toothing and internal tooth engagement both can guarantee that the tapered punch running orbit was stable, can prevent from making sliding sleeve to separate landing with tapered punch simultaneously.
Described tapered punch upper end one side has fixedly cotter way, and the tapered punch top can be inserted in the endoporus of piston ram bottom, and fixing pin penetrates fixedly that cotter way is fixed together tapered punch and piston ram.
Described sliding sleeve is fixed on elasticity punching press pawl head top by a plurality of fixing bolts of circumference.
Described press machine can adopt small pneumatic machine, small-sized hydraulic machine or small-sized hand-operated formula mechanical press.
Compared with prior art, the beneficial effect that has of the present invention is:
1, the piston ram of press machine drives punch assembly and moves downward, because tapered punch lower end drift is partly with tapering, the pawl head inner ring of elasticity punching press pawl head lower end circumference has identical with the tapered punch tapering simultaneously, the female cone that direction is opposite, so tapered punch can make outwards expand steel dust cover in the punching press bearing to be assembled of the pawl head of elasticity punching press pawl head lower end, make behind the steel dust cover bending fastening with the wedge angle phase interlock of outer ring gear hobbing, reach the bearing seal purpose, this compound seal bearing stamping seal arrangement not only utilizes the press machine automatic press, simple to operate, the efficient height, and reached the purpose of compound seal bearing seal, make the sealing technique of compound seal bearing improve a new step, fill up technical blank, had very big economic and social benefit;
2, the bearing fixing upender is set, bearing to be assembled taken advantage of be contained in the bearing fixing mould, and utilize lifting support to realize lifting and rotate freely, can conveniently treat running in bearings overturns, make bearing to be assembled both sides quick-sealing, reduce flip-flop transition, improve automaticity, increase work efficiency;
3, press machine can be selected small pneumatic machine or small-sized hydraulic machine for use according to actual conditions, also can select small-sized hand-operated formula mechanical press for use in order to save cost, and easy for installation flexible, applicability is wide.
Description of drawings
Fig. 1 is this compound seal bearing stamping seal arrangement overall structure schematic representation.
Fig. 2 is the partial sectional view of punch assembly and bearing fixing upender in this compound seal bearing stamping seal arrangement.
Fig. 3 is the partial enlarged drawing of Fig. 2.
Wherein: 1, press machine 2, piston ram 3, punch assembly 4, worktable 5, bearing fixing upender 6, tapered punch 7, sliding sleeve 8, supporting sleeve 9, bearing to be assembled 10, steel dust cover 11, bearing fixing mould 12, lifting support 13, elasticity punching press pawl head 14, fixedly cotter way 15, fixing bolt 16, rubber seal.
Embodiment
Fig. 1 ~ 3rd, the most preferred embodiment of this compound seal bearing stamping seal arrangement is described further below in conjunction with 1 ~ 3 pair of this compound seal bearing stamping seal arrangement of accompanying drawing.
With reference to accompanying drawing 1, this compound seal bearing stamping seal arrangement comprises press machine 1, and press machine 1 adopts the small pneumatic machine.Piston ram 2 belows of press machine 1 fixedly mount a punch assembly 3, and the worktable 4 tops installation one of press machine 1 and the bearing fixing upender 5 of punch assembly 3 vertical coaxial settings are taken advantage of in the bearing fixing upender 5 and adorned bearing 9 to be assembled.
With reference to accompanying drawing 3, bearing 9 to be assembled is the compound seal bearing, its sealing configuration is by 16 compound compositions of rubber seal of steel dust cover 10 and the inner ring of outer ring, steel dust cover 10 is deformable punching press assembling type dust cover, steel dust cover 10 outer rings are in punching press embeds the seal groove of bearing outer ring, the steel dust cover 10 of bearing to be assembled 9 upsides in the accompanying drawing 2 is state before the punching press, downside is state after the punching press, show that by accompanying drawing 3 gear hobbing of the edge, outer ring of the steel dust cover 10 after the punching press and bearing to be assembled 9 outer rings is connected together.
With reference to accompanying drawing 2, punch assembly 3 comprises that the lower end has the tapered punch 6 of tapering, and sliding parts outside, tapered punch 6 upper end is with sliding sleeve 7, and sliding sleeve 7 is fixed on elasticity punching press pawl head 13 tops by a plurality of fixing bolts 15 of circumference.Tapered punch 6 lower end drift portion of external be be subjected to tapered punch 6 extruding can to around the elasticity punching press pawl head 13 that expands, elasticity punching press pawl head 13 adopts Elastic Steel to make and forms, and the pawl head inner ring of elasticity punching press pawl head 13 lower end circumference has female cone identical with tapered punch 6 taperings, that direction is opposite.Elasticity punching press pawl head 13 upper ends and sliding sleeve 7 lower ends link together, but the pawl head of steel dust cover 10 in a plurality of punching presses of the elasticity punching press pawl head 13 lower end circumference uniform distributions bearing 9 to be assembled, elasticity punching press pawl head 13 outer rings are with the supporting sleeve 8 that can be supported on bearing to be assembled 9 outer rings.
Tapered punch 6 upper ends one side has fixedly cotter way 14, and tapered punch 6 tops can be inserted in the endoporus of piston ram 2 bottoms, and fixing pin penetrates fixedly cotter way 14 tapered punch 6 and piston ram 2 are fixed together.Sliding parts outer ring, tapered punch 6 upper end is provided with external toothing, and sliding sleeve 7 inner rings have the internal tooth that is meshed with external toothing, and tapered punch 6 slidably is installed in the sliding sleeve 7 by the engagement of external toothing and internal tooth.
Bearing fixing upender 5 comprises takes advantage of the bearing fixing mould 11 of adorning bearing 9 to be assembled, bearing fixing mould 11 central positions have the circular groove that adapts with bearing 9 external diameters to be assembled, bearing fixing mould 11 both sides are provided with back shaft and are supported on lifting support 12 tops of worktable 4 by back shaft, bearing fixing mould 11 can rotate freely above lifting support 12, lifting support 12 adopts hydraulic lifting, stable drive.
Press machine 1 in above-described embodiment can also adopt the small-sized hydraulic machine, and when in order to save fabricating cost or manufacturing scale hour, press machine 1 also can adopt small-sized hand-operated formula mechanical press.
Working procedure is as follows, bearing 9 to be assembled is placed in the bearing fixing mould 11 of bearing fixing upender 5, start press machine 1 descending button, it is whole descending to make piston ram 2 drive punch assembly 3, up to supporting sleeve 8 with after bearing to be assembled 9 outer rings contact, sliding sleeve 7 can't continue descending with supporting sleeve 8, this moment, tapered punch 6 continued descending in sliding sleeve 7, when the pawl head of elasticity punching press pawl head 13 lower ends enters the district to be punched of steel dust cover 10 of bearing 9 to be assembled, the conical section of tapered punch 6 lower ends just in time can push the female cone of elasticity punching press pawl head 13 lower ends and the distortion of pawl head is outwards expanded, the pawl primary drying hits steel dust cover 10 and makes its distortion, the edge, outer ring of steel dust cover 10 and the gear hobbing of bearing to be assembled 9 outer rings are connected together, finish once sealing.Then, punch assembly 3 is up, and the pawl head is regained.The lifting button that starts lifting support 12 rises lifting support 12, and drops to former working surface behind upset bearing fixed die 11 and bearing to be assembled 9, and the opposite side for the treatment of running in bearings 9 carries out the punching press sealing of same processes.
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (7)
1. compound seal bearing stamping seal arrangement, comprise press machine (1), it is characterized in that: piston ram (2) below fixed installation one punch assembly (3) of described press machine (1), worktable (4) the top installation one of press machine (1) and the bearing fixing upender (5) of the vertical coaxial setting of punch assembly (3) are taken advantage of in the bearing fixing upender (5) and are adorned bearing to be assembled (9); Described punch assembly (3) comprises that the lower end has the tapered punch of tapering (6), sliding parts outside, tapered punch (6) upper end is with sliding sleeve (7), tapered punch (6) lower end drift portion of external be be subjected to tapered punch (6) extruding can to around the elasticity punching press pawl head (13) that expands, elasticity punching press pawl head (13) upper end links together with sliding sleeve (7) lower end, elasticity punching press pawl head (13) but the pawl head of the interior steel dust covers of a plurality of punching presses of lower end circumference uniform distribution bearings to be assembled (9) (10), elasticity punching press pawl head (13) outer ring is with the supporting sleeve (8) that can be supported on bearing to be assembled (9) outer ring.
2. compound seal bearing stamping seal arrangement according to claim 1, it is characterized in that: described bearing fixing upender (5) comprises takes advantage of the bearing fixing mould (11) of adorning bearing to be assembled (9), bearing fixing mould (11) central position has the circular groove that adapts with bearing to be assembled (9) external diameter, bearing fixing mould (11) both sides are provided with back shaft and are supported on by back shaft above the lifting support (12) of worktable (4), and bearing fixing mould (11) can rotate freely in lifting support (12) top.
3. compound seal bearing stamping seal arrangement according to claim 1, it is characterized in that: described elasticity punching press pawl head (13) adopts Elastic Steel to make and forms, and the pawl head inner ring of elasticity punching press pawl head (13) lower end circumference has female cone identical with tapered punch (6) tapering, that direction is opposite.
4. compound seal bearing stamping seal arrangement according to claim 1, it is characterized in that: sliding parts outer ring, described tapered punch (6) upper end is provided with external toothing, sliding sleeve (7) inner ring has the internal tooth that is meshed with external toothing, and tapered punch (6) slidably is installed in the sliding sleeve (7) by the engagement of external toothing and internal tooth.
5. according to claim 1 or 4 described compound seal bearing stamping seal arrangements, it is characterized in that: described tapered punch (6) upper end one side has fixedly cotter way (14), tapered punch (6) top can be inserted in the endoporus of piston ram (2) bottom, and fixing pin penetrates fixedly cotter way (14) tapered punch (6) and piston ram (2) are fixed together.
6. according to claim 1 or 4 described compound seal bearing stamping seal arrangements, it is characterized in that: described sliding sleeve (7) is fixed on elasticity punching press pawl head (13) top by a plurality of fixing bolts of circumference (15).
7. compound seal bearing stamping seal arrangement according to claim 1, it is characterized in that: described press machine (1) can adopt small pneumatic machine, small-sized hydraulic machine or small-sized hand-operated formula mechanical press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310107130.0A CN103195825B (en) | 2013-03-29 | 2013-03-29 | Compound seal bearing stamping seal arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310107130.0A CN103195825B (en) | 2013-03-29 | 2013-03-29 | Compound seal bearing stamping seal arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103195825A true CN103195825A (en) | 2013-07-10 |
| CN103195825B CN103195825B (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310107130.0A Expired - Fee Related CN103195825B (en) | 2013-03-29 | 2013-03-29 | Compound seal bearing stamping seal arrangement |
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| CN (1) | CN103195825B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134801A (en) * | 2015-06-20 | 2015-12-09 | 新昌县三和轴承有限公司 | Bearing lubricating oil-coating and loading/unloading all-in-one machine |
| CN106737152A (en) * | 2016-12-23 | 2017-05-31 | 泉州智信专利技术开发有限公司 | It is a kind of with dust-proof bistrique and sanding machine |
| CN108019434A (en) * | 2017-12-31 | 2018-05-11 | 无锡华洋滚动轴承有限公司 | Sealing ring press-in device |
| CN108266460A (en) * | 2018-03-29 | 2018-07-10 | 华南理工大学 | A kind of RV retarders angular contact ball bearing assembly tooling mechanism and assembly method |
| CN112658099A (en) * | 2020-12-16 | 2021-04-16 | 宁波人和机械轴承有限公司 | Flexible protection platform for stamping bearing dust cover |
| CN114700717A (en) * | 2022-03-11 | 2022-07-05 | 麦金太尔(江苏)空调有限公司 | Automatic press fitting equipment for middle bearing and anti-rotation pin of air-conditioning compressor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1085848A (en) * | 1996-09-09 | 1998-04-07 | Fuji Kinzoku Kk | Integral forming method of fitting with slipping out stopper of bearing and its device and material |
| US5911515A (en) * | 1997-11-12 | 1999-06-15 | Spyraflo, Inc. | Self clinching rolling bearing assembly |
| CN1963249A (en) * | 2006-12-01 | 2007-05-16 | 无锡市汇光精密机械有限公司 | Gripping device for assembling bearing holder |
| CN201011364Y (en) * | 2007-02-13 | 2008-01-23 | 林旦 | Installation apparatus for bearing dust-proof cover |
| CN201524970U (en) * | 2009-11-13 | 2010-07-14 | 江苏万达特种轴承有限公司 | Pulley bearing retaining ring tooling |
| CN102720769A (en) * | 2012-06-26 | 2012-10-10 | 浙江八环轴承有限公司 | Device for mounting sealing ring of rolling bearing in pressing mode and method for mounting sealing ring in pressing mode |
| CN202579687U (en) * | 2012-05-08 | 2012-12-05 | 杭州人本大型轴承有限公司 | Assembly for assembling sealing element of rolling bearing |
| CN203189547U (en) * | 2013-03-29 | 2013-09-11 | 山东华泰轴承制造有限公司 | Main shaft bearing punching and sealing device |
-
2013
- 2013-03-29 CN CN201310107130.0A patent/CN103195825B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1085848A (en) * | 1996-09-09 | 1998-04-07 | Fuji Kinzoku Kk | Integral forming method of fitting with slipping out stopper of bearing and its device and material |
| US5911515A (en) * | 1997-11-12 | 1999-06-15 | Spyraflo, Inc. | Self clinching rolling bearing assembly |
| CN1963249A (en) * | 2006-12-01 | 2007-05-16 | 无锡市汇光精密机械有限公司 | Gripping device for assembling bearing holder |
| CN201011364Y (en) * | 2007-02-13 | 2008-01-23 | 林旦 | Installation apparatus for bearing dust-proof cover |
| CN201524970U (en) * | 2009-11-13 | 2010-07-14 | 江苏万达特种轴承有限公司 | Pulley bearing retaining ring tooling |
| CN202579687U (en) * | 2012-05-08 | 2012-12-05 | 杭州人本大型轴承有限公司 | Assembly for assembling sealing element of rolling bearing |
| CN102720769A (en) * | 2012-06-26 | 2012-10-10 | 浙江八环轴承有限公司 | Device for mounting sealing ring of rolling bearing in pressing mode and method for mounting sealing ring in pressing mode |
| CN203189547U (en) * | 2013-03-29 | 2013-09-11 | 山东华泰轴承制造有限公司 | Main shaft bearing punching and sealing device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134801A (en) * | 2015-06-20 | 2015-12-09 | 新昌县三和轴承有限公司 | Bearing lubricating oil-coating and loading/unloading all-in-one machine |
| CN105134801B (en) * | 2015-06-20 | 2018-04-27 | 新昌县三和轴承有限公司 | A kind of bearing applies lubricating oil loading and unloading all-in-one machine |
| CN106737152A (en) * | 2016-12-23 | 2017-05-31 | 泉州智信专利技术开发有限公司 | It is a kind of with dust-proof bistrique and sanding machine |
| CN108019434A (en) * | 2017-12-31 | 2018-05-11 | 无锡华洋滚动轴承有限公司 | Sealing ring press-in device |
| CN108019434B (en) * | 2017-12-31 | 2023-09-12 | 无锡华洋滚动轴承有限公司 | Sealing ring pressing-in device |
| CN108266460A (en) * | 2018-03-29 | 2018-07-10 | 华南理工大学 | A kind of RV retarders angular contact ball bearing assembly tooling mechanism and assembly method |
| CN108266460B (en) * | 2018-03-29 | 2024-01-23 | 华南理工大学 | RV reducer angular contact ball bearing assembly tool mechanism and assembly method |
| CN112658099A (en) * | 2020-12-16 | 2021-04-16 | 宁波人和机械轴承有限公司 | Flexible protection platform for stamping bearing dust cover |
| CN112658099B (en) * | 2020-12-16 | 2022-08-05 | 宁波人和机械轴承有限公司 | Flexible protection platform for stamping bearing dust cover |
| CN114700717A (en) * | 2022-03-11 | 2022-07-05 | 麦金太尔(江苏)空调有限公司 | Automatic press fitting equipment for middle bearing and anti-rotation pin of air-conditioning compressor |
| CN114700717B (en) * | 2022-03-11 | 2022-11-01 | 麦金太尔(江苏)空调有限公司 | Automatic press fitting equipment for middle bearing and anti-rotation pin of air-conditioning compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103195825B (en) | 2015-09-09 |
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