CN201613476U - Cross lead screw mechanical supporting device - Google Patents
Cross lead screw mechanical supporting device Download PDFInfo
- Publication number
- CN201613476U CN201613476U CN2009202771249U CN200920277124U CN201613476U CN 201613476 U CN201613476 U CN 201613476U CN 2009202771249 U CN2009202771249 U CN 2009202771249U CN 200920277124 U CN200920277124 U CN 200920277124U CN 201613476 U CN201613476 U CN 201613476U
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- CN
- China
- Prior art keywords
- projecting shaft
- lead screw
- supporting device
- sleeve
- cross
- 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 - Fee Related
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Abstract
The utility model relates to a cross lead screw mechanical supporting device, which belongs to the field of machine tool fittings, and comprises a bushing, wherein a projecting shaft is installed in the bushing; a compression spring is sleeved on the projecting shaft in a cavity of a spring housing at the left end of the bushing; a bearing roller is fixed onto the right end of the projecting shaft through a pin; and a lead screw support wheel is installed on the lateral side of the right end of the projecting shaft. The cross lead screw mechanical supporting device not only can resolve the problems of drooped deflection caused by dead weight of the lead screw and shaking in movement, but has no influence on effective stroke of the lead screw, and is simple in structure, safe and reliable.
Description
Technical field
The utility model relates to machine tool field, at length says it is a kind of lathe mechanical cross screw rod supporting device.
Background technology
As everyone knows, lathe is big and when adopting the cross lead screw transmission at stroke, because screw mandrel is long, the sagging amount of deflection that the screw mandrel deadweight causes is very big, is head it off, lathe producer normally adopts the mode of the terminal bearing prestretching of screw mandrel, reduce the sagging amount of deflection of screw mandrel, improve the rigidity of screw mandrel, but DeGrain and when cross slide movement is the screw mandrel rotation, the sagging off-centre that causes of screw mandrel is shaken whole rhizoid bar, and promptly influencing the screw mandrel life-span influences kinematic accuracy again.
Summary of the invention
Long in order to overcome machine tool horizontal lead screw, the jitter problem that causes in the big and motion process of the sagging amount of deflection that screw mandrel deadweight causes, the utility model provides a kind of mechanical cross screw rod supporting device, not only can solve the jitter problem that causes in the big and motion process of sagging amount of deflection that screw mandrel deadweight causes, and to the effective travel of screw mandrel without any influence, simple in structure, safe and reliable.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of mechanical cross screw rod supporting device, be provided with sleeve, projecting shaft is installed in the sleeve, be set with the compression spring on the projecting shaft of sleeve left end spring housing inner chamber, the projecting shaft right part is fixed with bearing roller through bearing pin, and projecting shaft right-hand member side is equipped with the screw mandrel support wheel through rotating shaft.
The utility model also can be realized in the following way: the rotating shaft two ends are installed between two baffle plates, and baffle plate is fixed on the connecting plate, and connecting plate is hinged through gyroaxis and backing plate, and backing plate is fixed on the right-hand member side of projecting shaft.Projecting shaft is in linear bearing is installed in sleeve.
The beneficial effects of the utility model are, not only can solve the jitter problem that causes in the big and motion process of sagging amount of deflection that the screw mandrel deadweight causes, and to the effective travel of screw mandrel without any influence, simple in structure, safe and reliable.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of the utility model Fig. 1.
Fig. 3 is user mode figure of the present utility model.
1. slide plate left socles among the figure, 2. cross lead screw, 3. mechanical cross screw rod supporting device, 4. cross slide, 5 slide plate right supports, 6. connecting plate, 7. baffle plate, 8. gyroaxis, 9. screw mandrel support wheel, 10. backing plate, 11. adjusting pads, 12. bearing pin, 13. bearing rollers, 14. linear bearings, 15. sleeve, 16. projecting shafts, 17. springs, 18. spring housing, 19. rear end caps, 20. barrier plates.
The specific embodiment
Fig. 1, shown in Figure 2, the utility model is provided with sleeve 15, sleeve 15 left ends have spring housing 18 through bolting, projecting shaft 16 is inserted in sleeve 15 and spring housing 18 inner chambers, be provided with linear bearing 14 between sleeve 15 and the projecting shaft 16, spring housing 18 ends are equipped with rear end cap 19, be processed with the hole that can supply projecting shaft 16 left ends to stretch out on the rear end cap 19, there is barrier plate 20 projecting shaft 16 left parts through bolting, be set with spring 17 on the projecting shaft 16 of spring housing 18 inner chambers, spring 17 is compressed between the boss of rear end cap 19 and projecting shaft 16, projecting shaft 16 right parts are fixed with bearing roller 13 through bearing pin 12, there is backing plate 10 projecting shaft 16 right-hand member sides through bolting, add adjusting pad 11 between the side of backing plate 6 and projecting shaft 16, are fixed with gyroaxis 8 on the backing plate 6, gyroaxis and connecting plate 6 are hinged, be fixed with on the connecting plate 6 between 7, two baffle plates 7 of two baffle plates and be fixed with two rotating shafts, through bearing a screw mandrel support wheel 9 is installed in the every rotating shaft.
Shown in Figure 3, the utility model mechanical cross screw rod supporting device 3 is installed in place, cross lead screw 2 centre positions, when the left side of cross slide 4 at mechanical cross screw rod supporting device 3, cross slide 4 moves right and during convergence mechanical cross screw rod supporting device 3, slide plate right support 5 is roof pressure bearing roller 13 at first, give projecting shaft 16 by bearing pin 12 with force transmission, the power that makes projecting shaft 16 overcome spring 17 drives 9 withdrawals of screw mandrel support wheel, allow cross slide 4 pass through at mechanical cross screw rod supporting device 3 tops, cross slide 4 continues to move right, the roof pressure effect takes place with bearing roller 13 in slide plate left socle 1, in the process that cross slide 4 moves right, roof pressure power reduces gradually, when slide plate left socle 1 is thrown off with bearing roller 13, projecting shaft 16 is ejected by spring 17 power effects, projecting shaft 16 drives screw mandrel support wheel 9 and moves to cross lead screw 2 bottoms, when contacting with cross lead screw 2, screw mandrel support wheel 9 (drives 9 rotations of screw mandrel support wheel during cross lead screw 2 rotations, avoid producing sliding friction), projecting shaft 16 is subjected to the resistance stop motion, at this moment screw mandrel support wheel 9 jacking cross lead screws 2; When the right side of cross slide 4 at mechanical support device 3, cross slide 4 is the same description of operating principle when left movement and convergence mechanical cross screw rod supporting device 3.
Claims (2)
1. mechanical cross screw rod supporting device, be provided with sleeve, it is characterized in that: projecting shaft is installed in the sleeve, is set with the compression spring on the projecting shaft of sleeve left end spring housing inner chamber, the projecting shaft right part is fixed with bearing roller through bearing pin, and projecting shaft right-hand member side is equipped with the screw mandrel support wheel through rotating shaft.
2. according to the described mechanical cross screw rod supporting device of claim 1, it is characterized in that said rotating shaft two ends are installed between two baffle plates, baffle plate is fixed on the connecting plate, and connecting plate is hinged through gyroaxis and backing plate, and backing plate is fixed on the right-hand member side of projecting shaft.Projecting shaft is in linear bearing is installed in sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202771249U CN201613476U (en) | 2009-12-04 | 2009-12-04 | Cross lead screw mechanical supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202771249U CN201613476U (en) | 2009-12-04 | 2009-12-04 | Cross lead screw mechanical supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201613476U true CN201613476U (en) | 2010-10-27 |
Family
ID=42999848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202771249U Expired - Fee Related CN201613476U (en) | 2009-12-04 | 2009-12-04 | Cross lead screw mechanical supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201613476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161163A (en) * | 2011-03-23 | 2011-08-24 | 桂林机床股份有限公司 | Unidirectional rotating shaft locking device |
-
2009
- 2009-12-04 CN CN2009202771249U patent/CN201613476U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161163A (en) * | 2011-03-23 | 2011-08-24 | 桂林机床股份有限公司 | Unidirectional rotating shaft locking device |
| CN102161163B (en) * | 2011-03-23 | 2012-11-21 | 桂林机床股份有限公司 | Unidirectional rotating shaft locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20111204 |