CN201604025U - Horizontal screw rod supporting device - Google Patents
Horizontal screw rod supporting device Download PDFInfo
- Publication number
- CN201604025U CN201604025U CN2009202771164U CN200920277116U CN201604025U CN 201604025 U CN201604025 U CN 201604025U CN 2009202771164 U CN2009202771164 U CN 2009202771164U CN 200920277116 U CN200920277116 U CN 200920277116U CN 201604025 U CN201604025 U CN 201604025U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- fixed
- nut
- supporting device
- moving component
- 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
Links
- 230000008093 supporting effect Effects 0.000 title claims abstract description 25
- 230000001360 synchronised effect Effects 0.000 claims abstract description 6
- 230000033001 locomotion Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 4
- 238000007665 sagging Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Abstract
The utility model relates to a horizontal screw rod supporting device and belongs to the field of machine tool equipment. The horizontal screw rod supporting device is provided with a lathe bed and a moving component. The lathe bed is fixed with a screw rod. Both sides of the screw rod are respectively fixed with line rails in parallel with the screw rod. The two line rails are provided with supporting plates by sliding blocks. The supporting plates are fixed on a rear screw rod nut. The moving component is fixed on a front screw rod nut. The front screw rod nut and the rear screw rod nut moves synchronous on the screw rod. The horizontal screw rod supporting device not only can solve the problems of high drooping flexivity caused by the dead weight of the screw rod and vibration caused in the moving process, but also has the advantages of simple structure, safety and reliability and is mainly characterized by supporting the screw rod constantly, achieving the dynamic supporting effect and making the moving component stably operate in a flat and straight area of the screw rod all the time.
Description
Technical field
The utility model relates to machine tool field, at length says it is a kind of horizontal screw lead supporting device of sagging and shake when eliminating the ball-screw transmission.
Background technology
As everyone knows, lathe is big and when adopting the horizontal lead screw transmission at stroke, because screw mandrel is long, the sagging amount of deflection that screw mandrel deadweight causes is very big, is head it off, adopts the mode of the terminal bearing prestretching of screw mandrel to reduce the sagging amount of deflection of screw mandrel usually, improve the rigidity of screw mandrel, but DeGrain and be screw mandrel when rotation in working table movement, 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.The lathe producer that also has is the mode that supports by fixed point, reduces the sag of chain of leading screw.This kind method can not effectively be improved the whole deformation of leading screw.Little to the effect of jitter in the leading screw rotary course, the long-term support in the Support Position easily produces wear phenomenon, and needs multiple Hydraulic Elements, electrical equipment, control difficulty.Above-mentioned two kinds of schemes are not difficult to find out, its main feature is, under the leading screw static state to the support of leading screw integral body.Here we are referred to as the static state support of leading screw.Do not consider leading screw rotation, the state of leading screw under the nut motion conditions is said nothing of the support under the state constantly.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of horizontal screw lead supporting device, the moving component that is connecting at feed screw nut is through the leading screw deformed region time, in advance deformed region is corrected at its anterior nut that moves on the online rail of a cover that increases, two cover nuts are synchronized with the movement, support constantly, make moving component always in the flat region of leading screw, keep stable operation.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 simple in structure, safe and reliable, and its topmost characteristics are to have accomplished the support constantly of leading screw, have reached the effect of dynamic support.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of horizontal screw lead supporting device, be provided with lathe bed and moving component, be fixed with leading screw on the lathe bed, the screw mandrel both sides are fixed with the line rail parallel with leading screw respectively, through slide block supporting plate is installed on two line rails, supporting plate is fixed on the feed screw nut of back, and on the feed screw nut, preceding feed screw nut was synchronized with the movement on leading screw with the back feed screw nut before moving component was fixed on.
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 screw mandrel deadweight causes, and it is simple in structure, safe and reliable, its topmost characteristics are to have accomplished the support constantly of leading screw, reached the effect of dynamic support, made moving component always in the flat region of leading screw, keep stable operation.
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 a vertical view of the present utility model.
1. moving components among the figure, 2. slide block, 3. lathe bed, 4. before feed screw nut, 5. supporting plate, 6. back feed screw nut, 7. leading screw, 8. line rail.
The specific embodiment
In Fig. 1, Fig. 2, the utility model is provided with lathe bed 3 and moving component 1, be fixed with leading screw 7 on the lathe bed 3, screw mandrel 7 both sides are fixed with the line rail 8 parallel with leading screw 7 respectively, through slide block 2 supporting plate 5 is installed on two line rails 8, supporting plate 5 is fixed on the feed screw nut 6 of back, and on the feed screw nut 4, back feed screw nut 6 and preceding feed screw nut 4 were synchronized with the movement on leading screw 7 before moving component 1 was fixed on.
The utility model line rail 8 is fixed on the lathe bed 3, makes freely-movable on the supporting plate 5 online rails 8, and supporting plate 5 has good guiding accuracy, and the back feed screw nut 6 in the supporting plate 5 moves on leading screw 7.When leading screw 7 produces sagging shake, when supporting plate 5 passes through deformed regions, effective supporting deformation zone, prevent shake, because back feed screw nut 6 and before feed screw nut 4 be synchronized with the movement, between leave suitable must distance, guaranteed that so preceding feed screw nut 4 drives the even running of moving components 1.
Claims (1)
1. horizontal screw lead supporting device, be provided with lathe bed and moving component, it is characterized in that: be fixed with leading screw on the lathe bed, the screw mandrel both sides are fixed with the line rail parallel with leading screw respectively, through slide block supporting plate is installed on two line rails, supporting plate is fixed on the feed screw nut of back, and on the feed screw nut, preceding feed screw nut was synchronized with the movement on leading screw with the back feed screw nut before moving component was fixed on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202771164U CN201604025U (en) | 2009-12-04 | 2009-12-04 | Horizontal screw rod supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202771164U CN201604025U (en) | 2009-12-04 | 2009-12-04 | Horizontal screw rod supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201604025U true CN201604025U (en) | 2010-10-13 |
Family
ID=42948733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202771164U Expired - Fee Related CN201604025U (en) | 2009-12-04 | 2009-12-04 | Horizontal screw rod supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201604025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758415A (en) * | 2009-12-04 | 2010-06-30 | 威海华东数控股份有限公司 | Horizontal screw lead supporting device |
-
2009
- 2009-12-04 CN CN2009202771164U patent/CN201604025U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758415A (en) * | 2009-12-04 | 2010-06-30 | 威海华东数控股份有限公司 | Horizontal screw lead supporting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20141204 |
|
| EXPY | Termination of patent right or utility model |