CN201083233Y - Compact combination straight line bearing - Google Patents
Compact combination straight line bearing Download PDFInfo
- Publication number
- CN201083233Y CN201083233Y CNU2007201151269U CN200720115126U CN201083233Y CN 201083233 Y CN201083233 Y CN 201083233Y CN U2007201151269 U CNU2007201151269 U CN U2007201151269U CN 200720115126 U CN200720115126 U CN 200720115126U CN 201083233 Y CN201083233 Y CN 201083233Y
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- CN
- China
- Prior art keywords
- steel ball
- outer ring
- metal stamping
- plastic cage
- compact combination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
A linear bearing with compact combination consists of outer ring metal stampings, a plastic cage, steel balls and metal covers on both ends, wherein each bearing at least has three metal stampings, each metal stamping has two steel ball tracks butting with axial steel ball races of the plastic cage to respectively form two steel ball rolling guide tracks, the outer ring metal stamping are arranged on the periphery of the plastic cage, and the two ends of the bearing are closed and fastened tightly by the metal covers. The linear bearing with compact combination which has the structure and is produced through a specially designed processing method has the advantages of simple structure, few components, and short production cycle. Compared with the prior bearing with the same specifications, the bearing reduces size by 30 percent, reduces weight by 50 percent, saves steel material of the outer ring by more than 70 percent, and saves cost by more than 50 percent with remarkable improvements on mechanical strength, tolerance grade and service life.
Description
Technical field
The utility model relates to a kind of linear bearing, particularly about outer ring metal stamping sheet linear bearing.
Background technique
Cr15 bearing steel pipe is adopted in the outer ring of linear bearing, again through roughing rounding camber steel tubing in different shapes.Cut off through blanking earlier, again by groove cutting processing inside and outside the internal external diameter of lathe, the raceway step, then heat-treat to reach after regulation hardness and the mechanical strength, through grinding machine external diameter in it is carried out thick fine ginding, through lapping machine internal diameter is ground then and reach the tolerance grade requirement, at last both ends of the surface are carried out plain grinding, outer ring processing is just finished like this.Before assembling, also to carry out sorting with special classification instrument, so just can match with each score value steel ball to the outer ring internal diameter.After being assembled into finished product, by precision end drift, flexibly plug carries out acceptance test.Because the bearing steel pipe is adopted in the outer ring of linear bearing, and is many with material, the manufacturing procedure complexity, difficulty is big, the difficult control of tolerance grade, quality be cannot say for sure to have caused the process-cycle long by card, cost of production is higher, outer ring internal diameter steel ball rolling channel contacts with steel ball and is the some contact simultaneously, and surface of contact is little, and cut is appearred in heavy load easily, move long fragile linear axis, thus reduction of service life.
Summary of the invention
The utility model purpose is to adopt the Bearing Steel steel tubing in different shapes to process at present plain bearing outer ring, the consumption of every cover metallic material is big again, operation is many and difficulty is big, and the manufacture cycle is long, the difficult control of quality, it is simple to design a kind of processing, has shortened the manufacture cycle, has improved manufacturing efficiency and has reduced manufacture cost.Compact combination linear bearing simple in structure.
Compact combination linear bearing, it is made up of outer ring metal stamping sheet, plastic cage, steel ball and two ends crown cap, it is characterized in that every bearing has the three-piece metal stamping at least, each metal stamping sheet has the axial steel ball rolling channel in two steel ball tracks and the plastic cage to connect, form two steel ball rolling guard rails respectively, outer ring metal stamping sheet is installed in the plastic cage periphery, and two ends are tightened up by the crown cap fit.
The steel ball of described compact combination linear bearing adopts the generic linear bearing, and precision is 10 grades of steel balls, is to adjust the product tolerance grade, steel ball divider value scope is controlled at ± 10 between.The plastic cage of compact combination linear bearing is whole cylindrical cavity frame, adopts acetal resin, with plastic mould molding and forming on injection moulding machine.Outer ring metal stamping sheet is a critical component of the present utility model, selects the high-quality cold-rolling mild steel plate for use, carries out repeatedly impact briquetting through various press tools on various tonnage punch presses.The particularly making of the twice steel ball track on the metal stamping sheet is carried out punching stretch forming and through shaping, to reach the tolerance grade area requirement by precision die at the precision stamping lathe.
The linear bearing of said structure cooperates specially designed processing method, the good effect of the compact combination linear bearing of producing is, simple in structure, component are few, with short production cycle, the bearing of same specification, every volume reduces 30%, and weight saving 50% is saved the outer ring steel more than 70%, save cost more than 50%, mechanical strength, tolerance grade and service life all increase significantly.
Description of drawings
Fig. 1 is the compact combination linear bearing structural drawing, and wherein A is an axial section, and B is radial section figure.
Fig. 2 is compact combination linear bearing outer ring metal stamping chip architecture figure, and wherein A is a plan view, and B is a right elevation.
Fig. 3 is a compact combination linear bearing plastic cage structural drawing, and A is a plan view, and B is a right elevation.
Embodiment
Referring to shown in Figure 1, compact combination linear bearing is made up of the crown cap 4 at outer ring metal stamping sheet 5, plastic cage 1, steel ball 2 and two ends, every bearing has 3 metal stamping sheets at least, each slice, thin piece has two steel ball tracks 3, shown in Fig. 1-B, article two, the steel ball rolling channel on steel ball track and the plastic cage 1 connects, and forms two guard rails, 3 guiding steel balls 2 respectively and makes circulating rolling.Plastic cage 1 is the cylindrical cavity shelf structure, establish the chimeric position of admitting the metal stamping sheet more than 3 or 3 on every plastic cage 1 external cylindrical surface, the embedding of metal stamping sheet is attached on the outer cylinder chamber frame face of plastic cage 1, and two ends are compressed metal stamping sheet 5 fits by metal end 4.
Outer ring metal stamping sheet concrete structure is referring to Fig. 2, every plane of trajectory orbital that 51, two indents of two steel ball tracks are arranged through punching press, stretch, be finish-ground to inner arc surface.The two ends of track 51 are circular arc steel ball inlet 52, the enter the mouth axial steel ball rolling channel of the recessed steel ball track of 52 cambered surfaces 51 and whole cylindrical cavity frame plastic cage of steel ball connects, steel ball can be done in the middle of track and raceway toward the complex line circulating rolling, between two steel ball inlets 52, be that metal stamping sheet two ends, outer ring are band arc shaped surface conical head 53, coincide with the Baltimore groove of retainer end points portion is compact mutually, the technology ditch 54 and the plastic cage technology groove 16 of metal stamping sheet 5 both sides, outer ring fit, the product two ends are press-fitted mutually by metal end, make product keep firmly not loosening state.
Plastic cage as shown in Figure 3, steel ball guard rail 3 on the plastic cage 1 is formed oval guide rail by the slot rolling 14 of steel ball rolling channel 12 and opening, six oval guide rails are evenly distributed on the cylindrical frame face, steel ball slot rolling 14 is a retainer upper shed groove, this no kerve is corresponding with the steel ball slot rolling track 51 of outer ring metal stamping sheet, steel ball slot rolling 14 A/Fs roll on track 51 with the restriction steel ball less than the diameter of steel ball 2.Between the oval guide rail is cross-brace frame 12, on vertical end cap frame 13 at two ends, be provided with the caulking groove 15 that matches with the conical head 53 of metal stamping sheet, two oval raceways are corresponding with a slice outer ring metal stamping sheet 5, when outer ring metal stamping sheet 5 is nested in plastic cage 1 outer surface, steel ball rolling channel 12 on the plastic cage connects with the steel ball track 51 on the outer ring metal stamping sheet 5, in common guiding steel ball was rolled to steel ball track 51 on the outer ring metal stamping sheet 5 from the steel ball rolling channel 12 of plastic cage, motion went round and began again.The technology ditch in two steel ball track 51 outsides is close to mutually on technology groove 16 in the middle of the oval guide rail and the outer ring metal stamping sheet, and two ends are compressed three outer ring metal stamping sheets and retainer fit by crown cap 4.
The linear bearing that above-mentioned parts form, little, in light weight except having volume, suitable needs alleviate TBW The amount machine uses, and itself also has in addition assembling advantage quick and easy to maintenance.
Claims (5)
1. compact combination linear bearing, it is made up of outer ring metal stamping sheet, plastic cage, steel ball and two ends crown cap, it is characterized in that every bearing has the three-piece metal stamping at least, each metal stamping sheet has the axial steel ball rolling channel in two steel ball tracks and the plastic cage to connect, form two steel ball rolling guard rails respectively, outer ring metal stamping sheet is installed in the plastic cage periphery, and two ends are tightened up by the crown cap fit.
2. compact combination linear bearing according to claim 1, the plane of trajectory orbital that it is characterized in that last two the steel ball tracks of outer ring metal stamping sheet (5) (51) is an inner arc surface.
3. compact combination linear bearing according to claim 1 is characterized in that metal stamping sheet two ends, outer ring are band arc shaped surface conical head (53).
4. according to claim 1 or 3 described compact combination linear bearings, it is characterized in that the steel ball guard rail (3) on the plastic cage (1) is formed oval guide rail by the slot rolling (14) of steel ball rolling channel (12) and opening.
5. compact combination linear bearing according to claim 1 is characterized in that (1) six oval guide rail of plastic cage is evenly distributed on the cylindrical frame face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201151269U CN201083233Y (en) | 2007-09-14 | 2007-09-14 | Compact combination straight line bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201151269U CN201083233Y (en) | 2007-09-14 | 2007-09-14 | Compact combination straight line bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201083233Y true CN201083233Y (en) | 2008-07-09 |
Family
ID=39625700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201151269U Expired - Lifetime CN201083233Y (en) | 2007-09-14 | 2007-09-14 | Compact combination straight line bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201083233Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470634A (en) * | 2013-09-25 | 2013-12-25 | 宁波恒力汽配轴承有限公司 | Linear bearing retainer |
-
2007
- 2007-09-14 CN CNU2007201151269U patent/CN201083233Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470634A (en) * | 2013-09-25 | 2013-12-25 | 宁波恒力汽配轴承有限公司 | Linear bearing retainer |
| CN103470634B (en) * | 2013-09-25 | 2016-04-13 | 宁波恒力汽配轴承有限公司 | A kind of linear bearing retainer and processing technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |