CN204267476U - A kind of two location precision screw - Google Patents
A kind of two location precision screw Download PDFInfo
- Publication number
- CN204267476U CN204267476U CN201420719283.0U CN201420719283U CN204267476U CN 204267476 U CN204267476 U CN 204267476U CN 201420719283 U CN201420719283 U CN 201420719283U CN 204267476 U CN204267476 U CN 204267476U
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- CN
- China
- Prior art keywords
- positioning part
- location
- precision screw
- screw
- precision
- 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
A kind of two location precision screw, is characterized in that: comprise threaded joints, the first positioning part, the second positioning part, nut.First the design positions link with two positioning parts, then connects location by screw, adopts this kind of structure, greatly can improve the positioning precision between link, ensures the quality of precision optical machinery.
Description
Technical field
The design relates to a kind of two location precision screw, belongs to precision machinery technology field.
Background technique
In the connection of precision mechanical part, separately with being threaded, often affecting the positioning precision of connected element, how to improve the positioning precision between link, is very important to the quality of precision optical machinery.
Summary of the invention
According to above-mentioned requirements, the object of the design is to provide a kind of two location precision screw, first positions link with two positioning parts, then location is connected by screw, adopt this kind of structure, greatly can improve the positioning precision between link, ensure the quality of precision optical machinery.
For achieving the above object, the design is realized by following technological means:
A kind of two location precision screw, is characterized in that: comprise threaded joints, the first positioning part, the second positioning part, nut.
Preferred:
Described one two location precision screw, is characterized in that: described first positioning part roughness is less than described second positioning part roughness.
Described one two location precision screw, is characterized in that: described first positioning part diameter is less than described second positioning part diameter.
Described one two location precision screw, is characterized in that: described threaded joints external diameter is less than described first positioning part diameter.
Described one two location precision screw, is characterized in that: described threaded joints external diameter is 1/2nd of described first positioning part diameter.
Described one two location precision screw, is characterized in that: described nut is with cross fastening structure.
The invention has the beneficial effects as follows: first the design positions link with two positioning parts, then connect location by screw, adopt this kind of structure, greatly can improve the positioning precision between link, ensure the quality of precision optical machinery.
Accompanying drawing explanation
Fig. 1 is the design's structural representation.
Embodiment
Below in conjunction with Figure of description, design is further described.
As shown in Figure 1, a kind of two location precision screw, is characterized in that: comprise positioning part 3, threaded joints 1, first positioning part 2, second, nut 4.
Preferred:
Described one two location precision screw, is characterized in that: described first positioning part 2 roughness is less than described second positioning part 3 roughness.
Primary Location is carried out in the second positioning part 3 that roughness is large first, then carries out accurate location further by the first positioning part 2 that roughness is little, is convenient on the one hand install, and can reduce two location precision screw complexity on the other hand, cost-saving.
Described one two location precision screw, is characterized in that: described first positioning part 2 diameter is less than described second positioning part 2 diameter.
Described one two location precision screw, is characterized in that: described threaded joints 1 external diameter is less than described first positioning part 2 diameter.
Described one two location precision screw, is characterized in that: described threaded joints 1 external diameter is 1/2nd of described first positioning part diameter 2.
Described one two location precision screw, is characterized in that: described nut 4 is with cross fastening structure.
More than show and describe the basic principle of the design, major character and advantage.The technician of the industry should understand; the design is not restricted to the described embodiments; the principle that the design is just described described in above-described embodiment and specification; under the prerequisite not departing from the design's spirit and scope; the design also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the design.The claimed scope of the design is defined by appending claims and equivalent thereof.
Claims (6)
1. two location precision screw, is characterized in that: comprise threaded joints, the first positioning part, the second positioning part, nut.
2. a kind of two location as claimed in claim 1 precision screw, is characterized in that: described first positioning part roughness is less than described second positioning part roughness.
3. a kind of two location as claimed in claim 1 precision screw, is characterized in that: described first positioning part diameter is less than described second positioning part diameter.
4. a kind of two location as claimed in claim 1 precision screw, is characterized in that: described threaded joints external diameter is less than described first positioning part diameter.
5. a kind of two location as claimed in claim 4 precision screw, is characterized in that: described threaded joints external diameter is 1/2nd of described first positioning part diameter.
6. a kind of two location as claimed in claim 4 precision screw, is characterized in that: described nut is with cross fastening structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719283.0U CN204267476U (en) | 2014-11-27 | 2014-11-27 | A kind of two location precision screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719283.0U CN204267476U (en) | 2014-11-27 | 2014-11-27 | A kind of two location precision screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267476U true CN204267476U (en) | 2015-04-15 |
Family
ID=52802347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420719283.0U Expired - Fee Related CN204267476U (en) | 2014-11-27 | 2014-11-27 | A kind of two location precision screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564976A (en) * | 2014-11-27 | 2015-04-29 | 苏州速腾电子科技有限公司 | Precision screw capable of realizing double positioning |
-
2014
- 2014-11-27 CN CN201420719283.0U patent/CN204267476U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564976A (en) * | 2014-11-27 | 2015-04-29 | 苏州速腾电子科技有限公司 | Precision screw capable of realizing double positioning |
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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: 20150415 Termination date: 20151127 |