CN100357632C - General purpose combined end plug - Google Patents
General purpose combined end plug Download PDFInfo
- Publication number
- CN100357632C CN100357632C CNB2004100427041A CN200410042704A CN100357632C CN 100357632 C CN100357632 C CN 100357632C CN B2004100427041 A CNB2004100427041 A CN B2004100427041A CN 200410042704 A CN200410042704 A CN 200410042704A CN 100357632 C CN100357632 C CN 100357632C
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- Prior art keywords
- end plug
- common type
- catch
- nut
- turning path
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- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010992 reflux Methods 0.000 description 11
- 208000010543 22q11.2 deletion syndrome Diseases 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Abstract
The present invention relates to a general purpose combined end plug which mainly comprises an end plug body, a guard sheet, etc. The present invention is characterized in that the end plug body is combined with the guard sheet so as to be shared by various ball screws with different lead angles. Therefore, the present invention can reduce moulds for opening different lead angles so as to reduce manufacture cost.
Description
Technical field
The invention relates to ball screw common type end plug, it is a kind of reflux of ball screw, and this reflux makes the ball in the ball screw can turn to backflow and finishes circulating rolling, allows screw rod and nut move with transferring power each other.
Background technique
The ball reflux of general ball screw is divided into outer circulation type reflux, inner circulation type reflux and end plug type reflux usually; Wherein only the reflux of end plug type is to be installed in the internal diameter at nut two ends of ball screw, utilizes end plug connecting thread groove and return port that ball can be turned to finish reflux cycle.And No. the 4357838th, the end plug of prior art such as U. S. Patent is shown in Figure 1, end plug 20 wherein is to be installed in the internal diameter at nut 10 two ends of ball screw, cooperate with nut 10 respectively and cooperate with screw rod 11, and be provided with in the end plug 20 fixed hole 30 with fixing end plug 20 on nut 10; Also being provided with turning path and cover plate in the end plug 20 can turn to finish reflux cycle ball with connecting thread groove and return port.
This traditional end plug type reflux is because of its structure shape complexity, and processing and fabricating is difficult and processing cost is also very high, so generally all use the die sinking shoot mode to make end plug.But different screw rod external diameters, different thread lead angles or different ball diameters all can produce the end plug of different size, and each specification is all opened a mould, and then the cost of mfg. moulding die also can be very high.Therefore comprehensively above-mentioned, the real necessity that has improvement to progress greatly of the end plug of traditional ball screw.
Goal of the invention
The purpose of common type of the present invention combination end plug promptly be to provide a kind of end plug its can be shared in the ball screw nut at multiple different lead angle, therefore can reduce the mould of offering the different lead angle and reduce manufacture cost.
Summary of the invention
Desire of the present invention designs a kind of structure of end plug, it can be shared in the nut of the ball screw of multiple different lead of screw thread, therefore at first study the functional structure of end plug, the structure of finding the end plug most important functions is turning path and catch, the thread groove of turning path coupling nut and return port can turn to ball in the thread groove and enter return port to finish reflux cycle; Catch then is to be arranged at turning path top,, deviates from from the turning path of end plug when the conversion direction to prevent ball.
Secondly if the present invention studies identical screw rod external diameter the lead of screw thread difference, and its angle of lead difference then makes the angle of catch need shine the different lead angle and change, and just can make the end plug of different lead of screw thread shared so must do the change design of structure on external form.Conception separates manufacturing with washer and end plug body according to last the present invention satisfies, utilize the combination of geometrical construction to be combined into common type combination end plug again, only need to change suitable catch thus, just can make on the nut of the shared ball screw at different lead of end plug, reduce the whole quantity of offering the mould of different size end plug and reach significantly, with the shared property that increases part and reduce manufacture cost.
Then study baffle structure, the composite structure (composite structure that combines with catch is also arranged on the end plug body) that combines with end plug body must be arranged on the catch, and owing to the angle of catch need shone the different lead angle and changed, therefore the present invention designs a cover body part that changes angle along with the different lead angle in catch, it is arranged on the turning path back side of end plug body, deviates from from the back side of turning path when the conversion direction to prevent ball.
Moreover common type is made up end plug insert in the nut of different lead, each helical pitch difference because of nut, make nut thread groove and cooperating of end plug turning path have the difference of a little angle and position, by cut the end plug groove of establishing different depth in the nut end face, cooperate the thread groove of nut with the turning path mouth position of adjusting end plug, so the end plug groove depth of its nut of different lead can be different with cooperating of end plug in response to thread groove.
In order further to understand feature of the present invention and technology contents, see also following relevant embodiments of the present invention explanation and graphic, however this mode of execution and graphic only for explanation and with reference to usefulness, but not in order to the present invention is done any restriction.
Description of drawings
The simple declaration of figure number
Fig. 1 is applied to the generalized section of nut for common type combination end plug of the present invention
Fig. 2 is the schematic perspective view of common type combination end plug of the present invention
Fig. 3 is the decomposing schematic representation of the common type combination end plug of Fig. 2
Fig. 4 is applied to the schematic representation of different lead of screw thread for common type combination end plug of the present invention
Fig. 5 is another mode of execution schematic representation of common type combination end plug of the present invention
Fig. 6 is the 3rd a mode of execution schematic representation of common type combination end plug of the present invention
The conventional letter of primary clustering
10 nuts, 11 thread grooves
20 common type end plugs, 21 end plug body
211 fixed holes, 212 turning paths
213 engagement grooves, 214 engagement grooves
215 card complex holes, 22 catch
221 engaging keys, 222 cover body part
23 catch, 231 engaging keys
232 cover body part, 24 catch
241 fastening bolts, 242 cover body part
25 catch, 252 cover body part
26 catch, 262 cover body part
D1 clearance D 2 gaps
D3 gap E nut end face
L1 lead of screw thread L2 lead of screw thread
The L3 lead of screw thread
Embodiment
Fig. 1 is applied to the generalized section of nut for common type combination end plug of the present invention; Wherein common type end plug 20 is arranged at the two ends of nut 10, and the thread groove 11 and return port (not drawing) of turning path 212 coupling nuts 10 of common type end plug 20 make the ball (not drawing) in the thread groove can turn to backflow and finish circulating rolling.
Fig. 2 is the schematic perspective view of common type combination end plug of the present invention; Fig. 3 is the decomposing schematic representation of the common type combination end plug of Fig. 2; Common type end plug 20 wherein is to be combined by end plug body 21 and catch 22, and has fixed hole 211 on this end plug body 21, common type end plug 20 can be fixed on the nut 10 of first figure, moreover also have turning path 212 to make ball (not drawing) can turn to backflow on the end plug body 21, and also be provided with engagement groove 213 (can be designed to the dovetail shape) on turning path 212 back sides of end plug body 21 and can combine with washer 22; Catch 22 then has engaging key 221 and matches with engagement groove 213, makes catch 22 be incorporated into turning path 212 back sides, and has cover body part 222 and be arranged on the back side of turning path 212, deviates from from the back side of turning path 212 when the conversion direction to prevent ball.
Fig. 4 is applied to the schematic representation of different lead of screw thread for common type combination end plug of the present invention; Among the figure with the different De File sheet 22,25 or 26 of identical end plug body 21 collocation, make the nut of multiple different lead of screw thread can shared identical end plug body 21, and wherein the gap of lead of screw thread L1＜lead of screw thread L2＜lead of screw thread L3 common type combination end plug and nut end face E then have nothing in common with each other.Common type combination end plug among Fig. 4-A is that end plug body 21 forms with washer 25 assembly, the cover body part 252 of its washer 25 is to design according to the angle of lead of lead of screw thread L1, the mat position of adjusting common type combination end plug makes turning path match with lead of screw thread L1 again, thus common type make up end plug and nut end face E between gapped D1; Common type combination end plug among same Fig. 4-B is that end plug body 21 forms with washer 22 assembly, the cover body part 222 of its washer 22 is to design according to the angle of lead of lead of screw thread L2, the position of mat adjustment common type combination end plug makes turning path match with lead of screw thread L2 again, so gapped D2 between common type combination end plug and the nut end face E; And the common type among Fig. 4-C combination end plug to be end plug body 21 form with washer 26 assembly, the cover body part 262 of its washer 26 is to design according to the angle of lead of lead of screw thread L3, the position of mat adjustment common type combination end plug makes turning path match with lead of screw thread L3 again, therefore gapped D3 between common type combination end plug and the nut end face E is by clearance D 3＜clearance D 2＜clearance D 1 as can be known wherein.So common type combination end plug of the present invention is when cooperating with nut, can be by cut the groove of establishing different depth in the nut end face, the thread groove that cooperates nut with the position of adjusting common type combination end plug, make identical end plug body can be common to the nut of different lead of screw thread, therefore can reduce the mould of offering the different lead angle and reduce manufacture cost.
Fig. 5 is another mode of execution schematic representation of common type combination end plug of the present invention; This mode of execution mainly is the diverse location that the explanation washer can be incorporated into end plug body, wherein end plug body 21 has fixed hole 211 and turning path 212 equally, the engagement groove 214 that combines with file sheet 23 then is arranged at end plug body 21 tops, 23 of washers have and cooperate the engaging key 231 of end plug body 21 profiles to fasten with engagement groove 214, and have cover body part 232 and be arranged on the back side of turning path 212.
Fig. 6 is the 3rd a mode of execution schematic representation of common type combination end plug of the present invention; This mode of execution mainly is the different kenel combined structures that the explanation washer is incorporated into end plug body, wherein end plug body 21 has fixed hole 211 and turning path 212 equally, and the combined structure of file sheet 24 is simplified to fastening bolt 241, then design the card complex hole 215 that matches with fastening bolt 241 on the end plug body 21 and make its mutual engaging, equally have cover body part 242 and be arranged on the back side of turning path 212, deviate from from the back side of turning path 212 when the conversion direction to prevent ball.
In sum, the present invention not only really belongs to innovation on the kenel of space, and can more existing technology promote above-mentioned multinomial effect, should fully meet the legal patent of invention important document of novelty and progressive.
Claims (4)
1. a common type makes up end plug, and it is arranged at the two ends of nut, and the structure of this common type end plug mainly comprises:
End plug body, it has thread groove and return port that turning path connects above-mentioned nut, and the guiding ball turns to backflow and finishes circulating rolling;
Catch is located at the turning path back side of above-mentioned end plug body, and it is to prevent that ball back side from above-mentioned turning path when conversion direction from deviating from that this catch has its function of a cover body part;
It is characterized in that: above-mentioned common type combination end plug is combined by end plug body and catch, make this end plug body and catch can be combined with one another to common type combination end plug and all have composite structure on this end plug body and the catch, the cover body part angle of above-mentioned catch is along with angle of lead changes.
2. common type according to claim 1 combination end plug is characterized in that: composite structure wherein is a fastening bolt and the cooperating of card complex hole.
3. common type according to claim 1 combination end plug is characterized in that: composite structure wherein cooperates for engaging key and engagement groove.
4. common type combination end plug according to claim 3, it is characterized in that: wherein engaging key and engagement groove are designed to the dovetail shape and structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100427041A CN100357632C (en) | 2004-05-21 | 2004-05-21 | General purpose combined end plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100427041A CN100357632C (en) | 2004-05-21 | 2004-05-21 | General purpose combined end plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1699791A CN1699791A (en) | 2005-11-23 |
| CN100357632C true CN100357632C (en) | 2007-12-26 |
Family
ID=35475986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100427041A Expired - Lifetime CN100357632C (en) | 2004-05-21 | 2004-05-21 | General purpose combined end plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100357632C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434754C (en) * | 2006-01-12 | 2008-11-19 | 上银科技股份有限公司 | Back-flow component for ball rolling screw |
| CN101187415B (en) * | 2006-11-16 | 2011-11-16 | 上银科技股份有限公司 | Ball screw refluxing assembly |
| CN102588542B (en) * | 2011-01-05 | 2015-08-19 | 上银科技股份有限公司 | The ball screw of tool reflux assembly |
| DE112016000506B4 (en) | 2015-01-28 | 2024-05-29 | Thk Co., Ltd. | SCREWING DEVICE |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4364282A (en) * | 1979-09-13 | 1982-12-21 | Skf Nova Ab | Screw and nut mechanism |
| US5005436A (en) * | 1988-02-11 | 1991-04-09 | R.G.B. S.P.A. | Recirculating ball screw-nut screw coupling |
| JPH07174205A (en) * | 1993-12-21 | 1995-07-11 | Toyota Motor Corp | Ball screw and ball screw assembling device |
| CN2440131Y (en) * | 2000-09-22 | 2001-07-25 | 上银科技股份有限公司 | Combined return block for ball screw arbor |
| US20030213322A1 (en) * | 2002-05-15 | 2003-11-20 | Nsk Ltd. | Ball screw apparatus |
-
2004
- 2004-05-21 CN CNB2004100427041A patent/CN100357632C/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4364282A (en) * | 1979-09-13 | 1982-12-21 | Skf Nova Ab | Screw and nut mechanism |
| US5005436A (en) * | 1988-02-11 | 1991-04-09 | R.G.B. S.P.A. | Recirculating ball screw-nut screw coupling |
| JPH07174205A (en) * | 1993-12-21 | 1995-07-11 | Toyota Motor Corp | Ball screw and ball screw assembling device |
| CN2440131Y (en) * | 2000-09-22 | 2001-07-25 | 上银科技股份有限公司 | Combined return block for ball screw arbor |
| US20030213322A1 (en) * | 2002-05-15 | 2003-11-20 | Nsk Ltd. | Ball screw apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1699791A (en) | 2005-11-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071226 |