CN101063479A - Ball screw rod composite set - Google Patents
Ball screw rod composite set Download PDFInfo
- Publication number
- CN101063479A CN101063479A CN 200610074538 CN200610074538A CN101063479A CN 101063479 A CN101063479 A CN 101063479A CN 200610074538 CN200610074538 CN 200610074538 CN 200610074538 A CN200610074538 A CN 200610074538A CN 101063479 A CN101063479 A CN 101063479A
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- ball
- screw
- screw axis
- end plug
- nut
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Abstract
The invention is a combination device of ball and screw, which is characterized in that the shoulder of the screw shaft is provided with barren teeth slot and the end of screw shaft is provided with a escaping-cut portion, wherein the escaping-cut portion is connected with a barren teeth end of the barren teeth slot to the finger of the end plug can move axially with the cap to screw into the barren teeth slot, and the invention can realize the assembly of the cap, avoids the ball screwing out and dropping off during the separation of the cap and the screw shaft or the cap is over-stroke and prevents the deflection and deformation in the operation to assure the using life of the ball and screw.
Description
Technical field
The present invention relates to a kind of ball screw rod composite set, particularly about a kind of screw axis, it mainly is that shoulder at screw axis is provided with unerupted tooth groove, and be provided with the portion of cutting of escaping in the end of screw axis, the portion of cutting is escaped in utilization and alveolus communicates with each other, make the nail portion of end plug can finish the assembling cooperation of nut along with the corresponding alveolus that screws in of moving axially of nut.
Background technique
The rolling element reflux cycle of ball screw is divided into inner loop mode or end cover type endless form at present, see also shown in Figure 1, be to be combination stereogram commonly used, it promptly is the structure of reflux type with the nut axial hole, end plug 10 among the figure is fixed in the end plug fixed groove 201 of nut 20 end faces, be provided with the turning path 101 of ball 11 in the end plug 10, end plug 10 is pushed end plug fixed groove 201 along the axle direction of nut 20, axially locating portion 102 on end plug 10 is positioned in the end plug fixed groove 201 of nut 20, axle direction degrees of freedom with restriction end plug 10, then retaining screw 30 is penetrated and is passed through locking hole 103 lockings of end plug 10 by the fixed hole 202 of nut 20, and the footpath direction degrees of freedom of restriction end plug 10, assemble fit system according to this, on the external diameter of screw axis 40, need be provided with one and go out alveolus 402, what is called goes out alveolus 402 and is meant the groove that supplies ball 11 to roll on the external diameter that is located at screw axis 40 and be communicated to the breasting face 403 of shoulder 401, in order to avoid end plug 10 and screw axis 40 to interfere, so when not having the alveolus 402 of going out on the external diameter of screw axis 40, and be not suitable for using this assembling fit system.
Ball screw assembling fit system, must on the shoulder 401 of screw axis 40, possess earlier the alveolus of going out 402 is arranged, therefore be distributed in going out alveolus 402 and need producing of screw axis 40 external diameters by machining, this can allow the shoulder 401 breasting faces 403 of screw axis 40 stay out alveolus breach 404, and this one goes out alveolus breach 404 structures and can be subjected to the influence of following factors and cause the impracticable of screw axis 40:
One, at present screw axis 40 goes out alveolus 402, can on the breasting face 403 of screw axis shoulder 401, stay out alveolus breach 404, the diameter of the breasting face of causing 403 presents non-integrity, be installed in the bearing support (not drawing) of board when the two ends of this screw axis 40, and activating the board motor makes screw axis 40 produce operating condition, the two ends of this screw axis 40 can produce the axially loaded load because of rotator inertia, and this axially loaded load can present non-integrity factor because of breasting face diameter, the two ends axially loaded load distribution inequality that causes screw axis 40, except the bearing face (not drawing) that is installed in the board bearing support is caused the crush injury, and then make screw axis 40 in operating condition, produce the phenomenon of deflection deformation, directly have influence on reflux assembly circuit smoothness, more can reduce the working life of ball screw, not meet the economic benefit of use.
They are two years old, when the two ends of this screw axis 40 are installed in bearing support on the board, in regular turn nut 20 is penetrated screw axis 40 and insert ball, utilize manual mode to be used as the ball screw assembling, may need therebetween to cooperate and the step of adjusting in assembling, because factor that this step produced can make nut 20 and screw axis 40 separating or nut 20 when crossing strokes, causes ball to screw out the situation that drops.
So the demand that solves foregoing problems is along with the exploitation utilization of ball screw is more and more universal and urgent gradually, in order to promote the assembling effect, to reduce manufacture cost, the present invention is based on over the research and development technology and the experience of being accumulated in ball screw assembly field, set about from the market demand angle that need not too much to assemble maintenance process, develop finally and the ball screw rod composite set that processing is simple, with low cost and can assemble when being not have alveolus 402 on the external diameter of screw axis 40.
Summary of the invention
Main purpose of the present invention promptly is to provide the ball screw rod composite set that also can assemble when not having alveolus 402 on a kind of external diameter that is screw axis 40.And then make screw axis 40 in operating condition, not produce the phenomenon of deflection deformation, the working life of avoiding reducing ball screw.
For reaching above-mentioned purpose, it mainly is that shoulder at screw axis is provided with unerupted tooth groove for the present invention, and is provided with the portion of cutting of escaping that axially is groove shaped in the end of screw axis; Wherein, utilization is escaped the portion of cutting and alveolus communicates with each other, and nail portion that end plug protrudes can be embedded in escape in the portion of cutting, and makes the end plug can be with the corresponding screw-in of nut alveolus, allow end plug fit in the external diameter of screw axis and can do axial passing, the assembling that can finish nut cooperates.
Described ball screw composite set, this degree of depth of escaping the portion of cutting approximates the degree of depth of alveolus.
Described ball screw composite set, the length of this nail portion approximates the width of escaping the portion of cutting.
So manufacturing operation personnel of the present invention only need take manual mode, the portion of cutting is escaped in the simple embedding of nail portion that end plug protrudes, make end plug screw in alveolus along with nut, in regular turn ball is inserted alveolus then, and be provided with unerupted tooth groove by shoulder at screw axis, can make nut and screw axis separating or nut when crossing stroke, avoid taking place ball 70 and screw out the situation that drops.
In addition, be provided with unerupted tooth groove, make the diameter of breasting face keep integrity, therefore can avoid causing bearing face the be squeezed damage and the phenomenon of generation deflection deformation on screw axis at the shoulder of screw axis.
In sum, the invention provides the ball screw rod composite set that also can assemble when not having alveolus 402 on a kind of external diameter that is screw axis, and then make screw axis in operating condition, not produce the phenomenon of deflection deformation, the working life of avoiding reducing ball screw.
The invention has the beneficial effects as follows: this device mainly is that the shoulder at screw axis is provided with unerupted tooth groove, and is provided with the portion of cutting of escaping that axially is groove shaped in the end of screw axis; Wherein, the portion of cutting is escaped in utilization and alveolus communicates with each other, and makes the nail portion of end plug correspondence screw in alveolus along with moving axially of nut; The assembling that the present invention can finish nut cooperates, and makes nut and screw axis separating or nut when crossing stroke, avoids taking place ball and screws out the situation that drops, and reaches the working life that promotes the assembling effect and guarantee ball screw.
Description of drawings
Fig. 1 is ball screw exploded perspective view commonly used;
Fig. 2 is a ball screw exploded perspective view of the present invention;
Fig. 3 is a ball screw combination stereogram of the present invention;
Fig. 4 is end plug of the present invention and screw axis scheme of installation;
Fig. 5 is that end plug of the present invention and screw axis are installed sectional view;
Fig. 6 is a ball screw-bar return-flow circulation embodiment schematic representation of the present invention.
[primary clustering symbol description]
Prior art
End plug 10 balls 11
Axially locating portion 102 turning paths 101
Nut 20 locking holes 103
Fixed hole 202 end plug fixed grooves 201
Screw axis 40 retaining screws 30
Go out alveolus 402 shoulders 401
Go out alveolus breach 404 breasting faces 403
The present invention
Screw axis 50 unerupted tooth grooves 501
Breasting face 502 is escaped the portion of cutting 503
Retaining screw 90
Embodiment
The technology of relevant this case invention for reaching above-mentioned purpose, being adopted, means and other effect, and after cooperating embodiment's explanation of the 2nd, 3,4,5 and 6 figure, believe purpose, feature and other advantage of this case invention, when can by one deeply and concrete understanding.
Clearly demonstrate preferred embodiment of the present invention for asking, below all assembly of explanation preferred embodiments, action change, and are decomposition of the present invention and combination stereogram at Fig. 2, Fig. 3 in advance, and its structure explanation describes as follows:
At first, the present invention is a kind of ball screw rod composite set, mainly comprise: screw axis 50, nut 60, ball 70 and end plug 80, wherein this nut 60 is to be arranged on its screw axis 50, and its end plug 80 is inserted nut 60 penetrated and passed through end plug 80 afterwards by the fixed hole 601 of nut with retaining screw 90 locking hole 801 lockings, nut 60 can be screwed in the corresponding screw axis 50, ball 70 is inserted in regular turn in the unerupted tooth groove 501 again, make ball 70 can finish the shuttling movement of backflow via end plug 80, so-called unerupted tooth groove 501 is meant that supplying ball 70 rollings and its two ends, left and right sides on the external diameter that is located at screw axis 50 all is the groove of unerupted tooth end 505, and unerupted tooth end 505 is characterized in that for for the two ends of the groove of ball 70 rollings and be not communicated to the breasting face 502 of shoulder 504:
Be provided with for ball 70 at the external diameter of screw axis 50 and roll and its two ends, left and right sides all be the unerupted tooth groove 501 of unerupted tooth end 505, and on the external diameter of screw axis 50, be provided with axial and be the portion of cutting 503 of escaping of groove shaped; Wherein, it is escaped the portion of cutting 503 and communicates with each other with one of unerupted tooth groove 501 unerupted tooth end 505; And
This end plug 80 possesses the nail portion 802 of protrusion, the length of its nail portion 802 approximates the width of escaping the portion of cutting 503, its nail portion 802 just can be embedded in the portion of cutting 503 of escaping, the unerupted tooth end 505 that can should be communicated with each other along with 60 pairs on nut by its end plug 80 and screwing in the unerupted tooth groove 501.
In view of the above, escape the external diameter that the portion's of cutting 503 tolerable end plugs 80 fit in screw axis 50, and the nail portion 802 of end plug can deeply escape the portion of cutting 503, make end plug 80 can do axial passing when applying screw axis 50, the assembling that can finish nut 60 cooperates.
So by the ingenious arrangement of above-mentioned structure characteristic and its correlation position, cooperating the operating principle between following each member again is to reach the basic purpose of taking off before the present invention.
Secondly, the operating principle of again this case being invented cooperates graphic detailed description advantage that further cognition and understanding can be arranged; Really commonly use structure for progressive with practical advantage for ease of explanation with showing the present invention, please consult each figure again and describe.
What deserves to be mentioned is (please cooperate and consult Fig. 4,5 end plug and screw axis structure scheme of installation), the present invention is in a screw axis 50, and its external diameter is provided with unerupted tooth groove 501; One end plug, 80 inboards possess the nail portion 802 of protrusion, the length of its nail portion 802 approximates the width of escaping the portion of cutting 503, its nail portion 802 just can be embedded in the portion of cutting 503 of escaping, can corresponding screw in unerupted tooth end 505 by its end plug 80 nail portions 802, allow end plug 80 fit in the external diameter of screw axis 50 and can do axial passing;
So manufacturing operation personnel of the present invention only need take manual mode, the 802 simple portions of cutting 503 of escaping that embed of nail portion that end plug 80 possessed protrusion, make the nail portion 802 can corresponding unerupted tooth end 505 and screw in the unerupted tooth groove 501, manufacturing operation personnel fast lifting assembling effect can be made things convenient for, and the degree of difficulty when assembling can be effectively reduced.
At last, see also shown in Figure 6ly, be ball screw-bar return-flow circulation embodiment schematic representation of the present invention, it mainly is to be provided with unerupted tooth groove 501 on the external diameter of screw axis 50, and is provided with the portion of cutting 503 of escaping that axially is groove shaped on the external diameter of screw axis 50; Wherein, it escapes the portion of cutting 503 and a unerupted tooth end 505 communicates with each other; And this end plug 80 possesses the nail portion 802 of protrusion, can correspondingly screw in unerupted tooth end 505 by its end plug 80 nail portions 802, allows end plug 80 fit in the external diameter of screw axis 50 and can do axial passing; Again ball 70 is inserted in the unerupted tooth groove 501 in regular turn, made ball 70 can finish the shuttling movement of backflow, can make nut and screw axis, avoid taking place ball 70 and screw out the situation that drops separating or nut when crossing stroke via end plug 80.
In addition, so, therefore can avoid causing bearing face (not drawing) the be squeezed damage and the phenomenon of generation deflection deformation on screw axis 50 because the diameter that is provided with unerupted tooth groove breasting face at the shoulder of screw axis 50 keeps integrity.
Claims (3)
1. ball screw rod composite set, it mainly comprises: screw axis, nut, ball and end plug, this nut are arranged on its screw axis, and ball is finished the shuttling movement of backflow via end plug, it is characterized in that:
Be provided with for ball at the external diameter of screw axis and roll and its two ends, left and right sides all are the unerupted tooth groove of unerupted tooth end, and on the external diameter of screw axis, be provided with the portion of cutting of escaping that is groove shaped;
It is escaped one of the portion of cutting and unerupted tooth groove unerupted tooth end and communicates with each other; And
This end plug possesses the nail portion of protrusion, and its nail portion just can be embedded in the portion of cutting of escaping, and its end plug can screw in the unerupted tooth groove the unerupted tooth end that should communicate with each other along with nut, and the assembling of finishing nut cooperates.
2. ball screw rod composite set according to claim 1 is characterized in that this degree of depth of escaping the portion of cutting approximates the degree of depth of unerupted tooth groove.
3. ball screw rod composite set according to claim 1 is characterized in that the length of this nail portion approximates the width of escaping the portion of cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100745382A CN100557270C (en) | 2006-04-27 | 2006-04-27 | Ball screw rod composite set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100745382A CN100557270C (en) | 2006-04-27 | 2006-04-27 | Ball screw rod composite set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101063479A true CN101063479A (en) | 2007-10-31 |
| CN100557270C CN100557270C (en) | 2009-11-04 |
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ID=38964685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100745382A Active CN100557270C (en) | 2006-04-27 | 2006-04-27 | Ball screw rod composite set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100557270C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806719A (en) * | 2014-01-27 | 2015-07-29 | 上银科技股份有限公司 | End plug type ball screw |
| CN112051051A (en) * | 2019-06-06 | 2020-12-08 | 上银科技股份有限公司 | Linear transmission device and identification method thereof |
-
2006
- 2006-04-27 CN CNB2006100745382A patent/CN100557270C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806719A (en) * | 2014-01-27 | 2015-07-29 | 上银科技股份有限公司 | End plug type ball screw |
| CN112051051A (en) * | 2019-06-06 | 2020-12-08 | 上银科技股份有限公司 | Linear transmission device and identification method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100557270C (en) | 2009-11-04 |
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