CN100491755C - Spring coil free dust-free cover secondary press-fitting method for micro bearing - Google Patents
Spring coil free dust-free cover secondary press-fitting method for micro bearing Download PDFInfo
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- CN100491755C CN100491755C CNB2007101896295A CN200710189629A CN100491755C CN 100491755 C CN100491755 C CN 100491755C CN B2007101896295 A CNB2007101896295 A CN B2007101896295A CN 200710189629 A CN200710189629 A CN 200710189629A CN 100491755 C CN100491755 C CN 100491755C
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- dust cover
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Abstract
The invention relates to a double pressing method on a dust cap without spring ring that is used for a miniature bearing, the first pressing method is mainly to make the dust cap of the bearing enter the dust cap groove and extend radially, the specific pressing method is to firstly adjust a right angle upper flat die (3) and a lower die and keep them concentric, then a bearing (1) is placed in the lower die to locate, a dustproof cap (2) is arranged in the dustproof cap groove of the outer race of the bearing, and finally a pressing machine is used for making the end face of the right angle upper flat die to stamp the folded face of the dustproof cap so that the radial dimension is increased, the edge is uniformly pressed into the dustproof cap groove of the outer housing of the bearing (1); the second pressing method is mainly to tightly press the dustproof cap of the bearing into the dustproof cap groove, the specific pressing method is to first adjust a right angle upper pressing die (3.1) and a lower die and keep them concentric, then the bearing of the dustproof cap has been pressed flat is placed in the lower die to locate, finally, a round angle R of the round angle upper pressing die is used for curling and pressing the dustproof cap by a pressing machine, which can considerably improve the reliability of the bearing assembly.
Description
Technical field
The invention belongs to bearing manufacturing technology field, specially refer to a kind of spring coil free dust-free cover secondary press-fitting method for micro bearing.
Background technique
During manufacturing, miniature bearing needs no spring ring dust cover is carried out the punching press assembling, a punching press of many employings assembling, the process of this method assembling is: adjust earlier, counterdie, then bearing is placed in the counterdie, dust cover is placed in the shield groove of bearing outer ring, at last the dust cover punching press is advanced in the shield groove of bearing outer ring.With the bearing that the assembling of this method is made, be easy to generate dust cover can not enter in the shield groove fully or go into groove after dust cover loosening, and dust cover excessive deformation after the punching press causes the bearing ring distortion and influences bearing accuracy.
Summary of the invention
In order to address the above problem, the invention provides a kind of spring coil free dust-free cover secondary press-fitting method for micro bearing, can improve the reliability, the particularly special dust cover of some shapes of bearing assembling greatly.
In order to realize the foregoing invention purpose, the present invention has adopted following technological scheme:
Described spring coil free dust-free cover secondary press-fitting method for micro bearing, its for the first time pressing method mainly make the dust cover of bearing enter shield groove and radial dilatation, concrete pressing method is to adjust rectangular-shaped upward flattening die and counterdie earlier and keep concentric, then bearing is placed in the counterdie and locatees, and dust cover is placed in the shield groove of bearing outer ring, make the rectangular-shaped flattening die end face punching press dust cover folding face of going up that its radial dimension is increased with press machine at last, the edge evenly enters in the bearing outer ring shield groove; Its for the second time pressing method mainly make the dust cover of bearing in shield groove, compress, loosening, concrete pressing method is to adjust on the fillet shape pressure die and counterdie earlier and keep with one heart, the bearing that dust cover had been driven plain is placed in the counterdie and locatees then, and the fillet R with pressure die on the fillet shape compresses the dust cover crimping by press machine at last.
Described spring coil free dust-free cover secondary press-fitting method for micro bearing, the working surface of its rectangular-shaped upward flattening die is at right angles cylindric, right angle work internal diameter cylindraceous matches with the folding face size of dust cover, make it at first stressed on the folding face of dust cover when pressing down, right angle work external diameter cylindraceous is more smaller than the crimping internal diameter of dust cover.
Described spring coil free dust-free cover secondary press-fitting method for micro bearing, the working surface of pressure die is the cylindric of fillet R on its fillet shape, work internal diameter cylindraceous is more bigger than the folding face size of dust cover, make it not be subjected to the interference of dust cover folding face when pressing down, work external diameter cylindraceous matches with the external diameter of bearing dustproof cover groove.
Owing to adopted technological scheme as mentioned above, the present invention has following superiority:
1, reduces dust cover through the influence of punching press distortion to bearing accuracy;
2, guarantee that dust cover does not come off, do not become flexible on bearing;
3, reduced the reject rate of bearing in assembling dust cover link;
Description of drawings
Fig. 1 is the rectangular-shaped flattening die figure structure schematic representation of going up;
Fig. 2 is the schematic representation when press-fiting for the first time;
Fig. 3 is a pressure die figure structure schematic representation on the fillet shape;
Schematic representation when Fig. 4 press-fits for the second time;
Among the above-mentioned figure: 1-bearing; 2-dust cover; 3-rectangular-shaped the flattening die of going up; 3.1-pressure die on the fillet shape;
Embodiment
With the 66/4.821VWB-2Z/P59S1YB1 bearing production of no spring ring dust cover being installed in batches is example:
As shown in Figure 1, 2: press-fiting in the process for the first time, to adjust rectangular-shaped flattening die 3, the counterdie and concentric gone up earlier, then bearing is placed in the counterdie and locatees, and dust cover 2 is placed in the shield groove of bearing outer ring 1, make the rectangular-shaped flattening die 3 working surface punching press dust covers 2 folding faces of going up that the dust cover radial dimension is increased with press machine at last, the edge evenly enters in the bearing outer ring shield groove.Press-fit process the first time that cyclic process is finished bearing in batches and do not have the spring ring dust cover.
The working surface of rectangular-shaped upward flattening die 3 is at right angles cylindric, right angle work internal diameter cylindraceous matches with the folding face size of dust cover, make it at first stressed on the folding face of dust cover when pressing down, right angle work external diameter cylindraceous is more smaller than the crimping internal diameter of dust cover.
Change then that pressure die 3.1 carries out press-fiting the second time process on the fillet shape, shown in Fig. 3,4: will adjust pressure die 3.1 on the fillet shape, counterdie and concentric earlier, the bearing that dust cover had been driven plain is placed in the counterdie and locatees then, working surface fillet R with pressure die 3.1 on the fillet shape compresses dust cover 2 crimpings at last, and cyclic process is finished and press-fited process in batches the second time of bearing.
The working surface of pressure die 3.1 is the cylindric of fillet R on the fillet shape, and work internal diameter cylindraceous is more bigger than the folding face size of dust cover, makes it not be subjected to the interference of dust cover folding face when pressing down, and work external diameter cylindraceous matches with the external diameter of bearing dustproof cover groove.
Counterdie mainly is that bearing outside diameter is fixed, and plays positioning action and gets final product, and shape and structure are not had specific (special) requirements, and the use of secondary press-fitting process is same counterdie.
Claims (3)
1, a kind of spring coil free dust-free cover secondary press-fitting method for micro bearing, it is characterized in that: its for the first time pressing method mainly make the dust cover (2) of bearing (1) enter shield groove and radial dilatation, concrete pressing method is to adjust rectangular-shaped upward flattening die (3) and counterdie earlier and keep concentric, then bearing (1) is placed in the counterdie and locatees, and dust cover (2) is placed in the shield groove of bearing (1) outer ring, make rectangular-shaped flattening die (3) end face punching press dust cover (2) the folding face of going up that its radial dimension is increased with press machine at last, the edge evenly enters in the shield groove of bearing (1) outer ring; Its for the second time pressing method mainly make the dust cover (2) of bearing (1) in shield groove, compress, loosening, concrete pressing method is to adjust pressure die on the fillet shape (3.1) and counterdie earlier and keep concentric, the bearing (1) that dust cover (2) had been driven plain is placed in the counterdie and locatees then, uses the fillet R of pressure die on the fillet shape (3.1) by press machine dust cover (2) crimping to be compressed at last.
2, spring coil free dust-free cover secondary press-fitting method for micro bearing as claimed in claim 1, it is characterized in that: the working surface of rectangular-shaped upward flattening die (3) is at right angles cylindric, right angle work internal diameter cylindraceous matches with the folding face size of dust cover, make it at first stressed on the folding face of dust cover when pressing down, right angle work external diameter cylindraceous is more smaller than the crimping internal diameter of dust cover.
3, spring coil free dust-free cover secondary press-fitting method for micro bearing as claimed in claim 1, it is characterized in that: the working surface of pressure die on the fillet shape (3.1) is the cylindric of fillet R, work internal diameter cylindraceous is more bigger than the folding face size of dust cover, make it not be subjected to the interference of dust cover folding face when pressing down, work external diameter cylindraceous matches with the external diameter of bearing dustproof cover groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101896295A CN100491755C (en) | 2007-09-26 | 2007-09-26 | Spring coil free dust-free cover secondary press-fitting method for micro bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101896295A CN100491755C (en) | 2007-09-26 | 2007-09-26 | Spring coil free dust-free cover secondary press-fitting method for micro bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101126421A CN101126421A (en) | 2008-02-20 |
| CN100491755C true CN100491755C (en) | 2009-05-27 |
Family
ID=39094523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101896295A Expired - Fee Related CN100491755C (en) | 2007-09-26 | 2007-09-26 | Spring coil free dust-free cover secondary press-fitting method for micro bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100491755C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898293B (en) * | 2010-06-25 | 2012-05-23 | 浙江新界泵业股份有限公司 | Method for surface treatment of encloser inner wall |
| CN103016552B (en) * | 2012-12-10 | 2015-08-05 | 中山市盈科轴承制造有限公司 | A kind of bearing double-side dustproof lid technique for riveting and mould |
| CN107448485B (en) * | 2017-09-28 | 2023-04-25 | 中山市盈科轴承制造有限公司 | Bearing sealing retainer ring riveting die |
| CN111594552A (en) * | 2020-04-24 | 2020-08-28 | 黄山震壹精密机械有限公司 | Assembling equipment and assembling method for dust cover of miniature bearing |
-
2007
- 2007-09-26 CN CNB2007101896295A patent/CN100491755C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101126421A (en) | 2008-02-20 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20170926 |