CN203779207U - Anti-backlash nut for lead screw transmission system of machine tool - Google Patents
Anti-backlash nut for lead screw transmission system of machine tool Download PDFInfo
- Publication number
- CN203779207U CN203779207U CN201420151281.6U CN201420151281U CN203779207U CN 203779207 U CN203779207 U CN 203779207U CN 201420151281 U CN201420151281 U CN 201420151281U CN 203779207 U CN203779207 U CN 203779207U
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- CN
- China
- Prior art keywords
- nut
- backlash
- lead screw
- gap
- machine tool
- 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 provides an anti-backlash nut for a lead screw transmission system of a machine tool. The anti-backlash nut comprises a first nut, a second nut, backlash adjusting screws and fastening screws, wherein the first nut and the second nut are arranged in a workbench fixing seat and on the outer side of a lead screw at an interval, the first nut is arranged on one side in the fixed seat through the backlash adjusting screw, and the second nut is fixedly arranged in the other side of the fixed seat through the fastening screw. The anti-backlash nut has the benefit that as the anti-backlash nut consists of the two backlash-adjustable nuts, when the backlash between the lead screw and the nut is too large, the backlash between the lead screw and the nut is eliminated through adjusting the backlash between the two nuts so as to ensure the transmission precision of a lead screw system, thereby ensuring the positioning precision of a workbench and the processing precision of a workpiece and further ensuring the yield of products.
Description
Technical field
The utility model relates to machine tool field, refers to especially a kind of gap nut that disappears for machine tool lead screw transmission system.
Background technology
Because the transmission precision of leading screw is high, efficiency is high, it is the desirable product that rectilinear motion is converted into gyration, therefore in machine tool, often realize the movement of workbench using leading screw as transmission system, but after working long hours, because the wearing and tearing between leading screw and nut will produce gap each other, the cooperation between the two is no longer tight, will affect so the accurate location of workbench, thereby the machining accuracy of workpiece cannot be guaranteed, and the percent defective of product increases.
Utility model content
The utility model proposes a kind of gap nut that disappears for machine tool lead screw transmission system, solved the above-mentioned problems in the prior art.
The technical solution of the utility model is achieved in that
A kind of machine tool lead screw gap nut that disappears for transmission system, comprise the first nut, the second nut, adjust gap screw and trip bolt, described the first nut and the second nut are disposed in workbench holder and leading screw outside, described the first nut is by adjusting gap screw to be arranged on a side in holder, and described the second nut is fixed on opposite side in holder by trip bolt.
Preferably, the described gap nut that disappears is also provided with locating piece, described locating piece one end is provided with tooth portion, in described the first nut outer circumference, be also provided with tooth portion, the position of the first nut is engaged to fix by the tooth portion of described locating piece and the tooth portion of the first nut, on described locating piece, be also provided with screwed hole, described locating piece is bolted on holder.
The beneficial effects of the utility model are:
This gap nut that disappears is made up of two nuts of adjustable clearance, in the time of excesssive gap between leading screw and nut, the gap of eliminating leading screw and nut by the gap length of adjusting between two nuts, to ensure the transmission precision of spindle arrangement, thereby ensure the positioning precision of workbench and the machining accuracy of workpiece, ensure further the yields of product.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of the first nut and locating piece.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.
As shown in Figure 1, a kind of machine tool lead screw gap nut that disappears for transmission system, comprise the first nut 1, the second nut 2, adjust gap screw 3 and trip bolt 4, the first nut 1 and the second nut 2 are disposed in workbench holder 5 and leading screw 6 outsides, the first nut 1 is by adjusting gap screw 3 to be arranged on a side in holder 5, and the second nut 2 is fixed on the interior opposite side of holder 5 by trip bolt 4.
As shown in Figure 2, this gap nut that disappears is also provided with locating piece 7, locating piece 7 one end are provided with tooth portion 71, in the first nut 1 outer circumference, be also provided with tooth portion 11, the position of the first nut 1 is engaged to fix by the tooth portion 71 of locating piece 7 and the tooth portion 11 of the first nut 1, on locating piece 7, be also provided with screwed hole 72, locating piece 7 is fixed on holder 5 by bolt 8.
In the time there is gap between leading screw 6 and the first nut 1 and the second nut 2, adjust gap screw 3 to change the first position of nut 1 in holder 5 by rotation, to eliminate the gap between leading screw 6 and the first nut 1 and the second nut 2, thereby ensure the transmission precision of spindle arrangement, and ensure the positioning precision of workbench and the machining accuracy of workpiece, ensure further the yields of product.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. the gap nut that disappears for machine tool lead screw transmission system, it is characterized in that, comprise the first nut, the second nut, adjust gap screw and trip bolt, described the first nut and the second nut are disposed in workbench holder and leading screw outside, described the first nut is by adjusting gap screw to be arranged on a side in holder, and described the second nut is fixed on opposite side in holder by trip bolt.
2. the gap nut that disappears for machine tool lead screw transmission system according to claim 1, it is characterized in that, also be provided with locating piece, described locating piece one end is provided with tooth portion, in described the first nut outer circumference, be also provided with tooth portion, the position of the first nut is engaged to fix by the tooth portion of described locating piece and the tooth portion of the first nut, is also provided with screwed hole on described locating piece, and described locating piece is bolted on holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420151281.6U CN203779207U (en) | 2014-03-31 | 2014-03-31 | Anti-backlash nut for lead screw transmission system of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420151281.6U CN203779207U (en) | 2014-03-31 | 2014-03-31 | Anti-backlash nut for lead screw transmission system of machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203779207U true CN203779207U (en) | 2014-08-20 |
Family
ID=51315435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420151281.6U Expired - Fee Related CN203779207U (en) | 2014-03-31 | 2014-03-31 | Anti-backlash nut for lead screw transmission system of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203779207U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116104920A (en) * | 2023-02-07 | 2023-05-12 | 江苏品德机电科技有限公司 | Ball screw with simple disassembly and assembly and disassembly method thereof |
-
2014
- 2014-03-31 CN CN201420151281.6U patent/CN203779207U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116104920A (en) * | 2023-02-07 | 2023-05-12 | 江苏品德机电科技有限公司 | Ball screw with simple disassembly and assembly and disassembly method thereof |
| CN116104920B (en) * | 2023-02-07 | 2024-04-09 | 江苏品德机电科技有限公司 | Ball screw with simple disassembly and assembly and disassembly method thereof |
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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: 20140820 Termination date: 20150331 |
|
| EXPY | Termination of patent right or utility model |