CN202540035U - Auxiliary supporting mechanism of lead screw - Google Patents
Auxiliary supporting mechanism of lead screw Download PDFInfo
- Publication number
- CN202540035U CN202540035U CN2012201831691U CN201220183169U CN202540035U CN 202540035 U CN202540035 U CN 202540035U CN 2012201831691 U CN2012201831691 U CN 2012201831691U CN 201220183169 U CN201220183169 U CN 201220183169U CN 202540035 U CN202540035 U CN 202540035U
- Authority
- CN
- China
- Prior art keywords
- lead screw
- leading screw
- supporting mechanism
- roller
- lead
- 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 an auxiliary supporting structure of a lead screw of a numerical control machine tool, in particular to an auxiliary supporting mechanism of an ultralong lead screw. The auxiliary supporting mechanism of the lead screw comprises rollers, pressing plates, guide posts and an elastic mechanism, wherein the rollers are arranged on two sides of the lead screw; the lower ends of the pressing plates are connected with the guide posts; the elastic mechanism is arranged between the two guide posts and the upper end of the elastic mechanism is connected with the rollers; and the vertical movement of the rollers is controlled by the pressing plates, the guide posts and the elastic mechanism. The auxiliary supporting mechanism provided by the utility model is simple and safe; the defects of low machining precision, bad moulding effect and high rejection rate of the product caused by swaying and large deflection of self weight sag in the revolving process of the ultralong lead screw are overcome; and the service life of the lead screw is prolonged and the machining cost of the product is reduced.
Description
Technical field
The utility model relates to a kind of leading screw auxiliary support structure of Digit Control Machine Tool, particularly a kind of supplemental support mechanism of overlength leading screw.
Background technology
In plant equipment, often can use leading screw, like the lead screw gear in the Digit Control Machine Tool.Current Digit Control Machine Tool development rapidly; Leading screw is the applied more and more of overlength leading screw on large-size numerical control machine especially; But problem also occurs thereupon: the overlength leading screw can produce certain whipping phenomenon when rotating; Therefore even under nature, also can occur saggingly, have badly influenced the positioning accuracy and the repetitive positioning accuracy of Digit Control Machine Tool, thereby caused that processing precision of products is low, shortcomings such as molding effect difference and scrappage height because of gravity.
The utility model content
The utility model provides a kind of especially easy auxiliary support structure that whipping and sag take place of overlength leading screw of leading screw of avoiding.
The technical scheme that the utility model solves the problems of the technologies described above is following: a kind of leading screw supplemental support mechanism, comprise roller, pressing plate, lead and elastic mechanism, and said roller is located at the leading screw both sides, and said pressing plate lower end connects said lead; Said elastic mechanism is located in the middle of two leads, and its upper end is connected with said roller; Moving up and down of said roller through said pressing plate, lead and elastic mechanism control.
The beneficial effect of the utility model is: simple in structure, safety; Solved that the overlength leading screw is low because of the processing precision of products of whipping and the big generation of the sagging amount of deflection of deadweight in rotary course, molding effect difference and scrappage high shortcoming; And can prolong the service life of leading screw, reduce the product processing cost.
On the basis of technique scheme, the utility model can also be done following improvement.
Directly contact with leading screw when further, said roller supports leading screw.
Further, said pressing plate is fixed on the main spindle box; Said lead outer cover has oilless bearing, and its lower end is connected with limited block.
Further, be connected with bearing between said pressing plate and the lead.
Further, said elastic mechanism by cylinder sleeve, be embedded in the spring in the said cylinder sleeve and be enclosed within the outside cylinder body of cylinder sleeve and form.
Further, said oilless bearing and cylinder body are fixed on the gripper shoe.
Further, said gripper shoe two ends are fixed on the connecting plate.
Description of drawings
Fig. 1 is the installation diagram of the utility model;
Fig. 2 is the vertical view of the utility model;
In the accompanying drawing, the list of parts of each label representative is following:
1, pressing plate, 2, nut seat, 3, bearing, 4, axle, 5, lead, 6, oilless bearing, 7, limited block, 8, cylinder sleeve, 9, spring, 10, cylinder body, 11, gripper shoe, 12, connecting plate, 13, roller, 14, main spindle box, 15, bearing, 16, axle
The specific embodiment
Below in conjunction with accompanying drawing the principle and the characteristic of the utility model are described, institute gives an actual example and only is used to explain the utility model, is not the scope that is used to limit the utility model.
As shown in Figure 1; Roller 13 is located at the leading screw both sides, and roller 13 lower ends connect cylinder sleeve 8, and cylinder sleeve 8 inside are embedded with spring 9, the outside is with cylinder body 10; Cylinder body 10 is located in the middle of two oilless bearings 6; Be with lead 5 in the oilless bearing 6, lead 5 upper ends are connected with pressing plate 1 with spools 4 through bearing 3, the lower end is connected with limited block 7, and pressing plate 1 is fixed on the main spindle box 14; Oilless bearing 6 is fixed on the gripper shoe 11 with cylinder body 10, and gripper shoe 11 two ends are fixed on the connecting plate 12.
As shown in Figure 2, roller 13 is connected in series by axle 16 with bearing 15.
In the leading screw rotary course, the roller 13 of leading screw both sides directly contacts to support force that makes progress of leading screw with leading screw, and the whipping that is used for eliminating in the leading screw rotary course is sagging with self, and the friction between leading screw and the roller is rolling friction.Nut seat 2 on leading screw is during through this mechanism, and pressing plate 1 passes to the downward pressure of lead 5 through bearing 3 and axle 4, and this mechanism integral body is moved down, so that roller 13 is avoided nut seat 2, the friction between its center platen and the bearing is rolling friction.When nut seat 2 passed through this mechanism, this mechanism provided the active force that mechanism's integral body is moved up by compressed spring 9 with pneumatic means, and roller 13 is directly contacted with leading screw once more, supports leading screw.Get into the next work period then.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. a leading screw supplemental support mechanism is characterized in that, comprise roller, pressing plate, lead and elastic mechanism, said roller is located at the leading screw both sides, and said pressing plate lower end connects said lead; Said elastic mechanism is located in the middle of two leads, and its upper end is connected with said roller; Moving up and down of said roller through said pressing plate, lead and elastic mechanism control.
2. supporting mechanism according to claim 1 is characterized in that, directly contacts with leading screw when said roller supports leading screw.
3. supporting mechanism according to claim 1 is characterized in that said pressing plate is fixed on the main spindle box; Said lead outer cover has oilless bearing, and its lower end is connected with limited block.
4. supporting mechanism according to claim 1 is characterized in that, is connected with bearing between said pressing plate and the lead.
5. supporting mechanism according to claim 1 is characterized in that, said elastic mechanism by cylinder sleeve, be embedded in the spring in the said cylinder sleeve and be enclosed within the outside cylinder body of cylinder sleeve and form.
6. according to claim 3 or 5 described supporting mechanisms, it is characterized in that said oilless bearing and cylinder body are fixed on the gripper shoe.
7. supporting mechanism according to claim 6 is characterized in that, said gripper shoe two ends are fixed on the connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201831691U CN202540035U (en) | 2012-04-26 | 2012-04-26 | Auxiliary supporting mechanism of lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201831691U CN202540035U (en) | 2012-04-26 | 2012-04-26 | Auxiliary supporting mechanism of lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202540035U true CN202540035U (en) | 2012-11-21 |
Family
ID=47160724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201831691U Expired - Fee Related CN202540035U (en) | 2012-04-26 | 2012-04-26 | Auxiliary supporting mechanism of lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202540035U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647109A (en) * | 2014-01-26 | 2015-05-27 | 柳州正菱重型数控机床有限公司 | Auxiliary supporting device for machine tool beam screw rod |
| CN106975938A (en) * | 2017-05-24 | 2017-07-25 | 沈机集团昆明机床股份有限公司 | Without impact ballscrew auxiliary supporting device |
| CN110774039A (en) * | 2019-09-17 | 2020-02-11 | 浙江合奥机械科技有限公司 | Support arrangement based on lathe lead screw |
-
2012
- 2012-04-26 CN CN2012201831691U patent/CN202540035U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647109A (en) * | 2014-01-26 | 2015-05-27 | 柳州正菱重型数控机床有限公司 | Auxiliary supporting device for machine tool beam screw rod |
| CN106975938A (en) * | 2017-05-24 | 2017-07-25 | 沈机集团昆明机床股份有限公司 | Without impact ballscrew auxiliary supporting device |
| CN110774039A (en) * | 2019-09-17 | 2020-02-11 | 浙江合奥机械科技有限公司 | Support arrangement based on lathe lead screw |
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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: 20121121 Termination date: 20140426 |