CN205342488U - Through -hole fastening structure of single face processing - Google Patents
Through -hole fastening structure of single face processing Download PDFInfo
- Publication number
- CN205342488U CN205342488U CN201520936893.0U CN201520936893U CN205342488U CN 205342488 U CN205342488 U CN 205342488U CN 201520936893 U CN201520936893 U CN 201520936893U CN 205342488 U CN205342488 U CN 205342488U
- Authority
- CN
- China
- Prior art keywords
- claw
- blanking cover
- jack catch
- distance
- machined surface
- 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
- 210000000078 claw Anatomy 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Connection Of Plates (AREA)
Abstract
The utility model discloses a through -hole fastening structure of single face processing, including the circular shape blanking cover, a blanking cover side end face spaced equipartition perpendicular to a plurality of ends that stretch out of blanking cover, the lateral wall that stretches out the portion of serving is equipped with and is used for the jack catch of blanking cover terminal surface with the wedge form of machined surface block, the block portion NOT AND machined surface block of jack catch, the jack catch divide into first jack catch, second jack catch and third jack catch, first jack catch block portion arrives distance < second jack catch block portion to distance < third jack catch block portion to the distance of blanking cover terminal surface of blanking cover terminal surface of blanking cover terminal surface. The utility model discloses an assembly requirements big apart from the tolerance between the machined surface NOT AND machined surface can be satisfied in three kinds of not jack catch designs of co -altitude, is satisfying the processing technology degree of difficulty that has reduced the hole terminal surface under assembly requirements's the circumstances simultaneously.
Description
Technical field
This utility model belongs to machining technique field, specifically the through hole fastening structure of a kind of single-sided process.
Background technology
The hole that some needs seals is narrow and small due to inner space, and cutter is not easy to, in extending into interior hole machined, cause that interior hole end surface is non-machined surface, and outer hole end surface can be processed, and thus occurs sealing the situation that hole build-up tolerance is bigger.
Utility model content
The purpose of this utility model is in that to provide one can meet matching requirements, can reduce again the through hole fastening structure of the single-sided process of the processing technique difficulty of interior hole end surface.
For reaching above-mentioned purpose, the through hole fastening structure of the single-sided process of this utility model design, it is characterized in that: include the blanking cover of circle, the uniform multiple external parts being perpendicular to described blanking cover of described blanking cover side end surfaces, the lateral wall on described external part top is provided with the claw for the wedge shape engaged by blanking cover end face with machined surface, and the holding section of described claw engages with non-machined surface；Described claw is divided into the first claw, the second claw and the 3rd claw, described first claw holding section to distance < the second claw holding section of blanking cover end face to distance < the 3rd claw holding section of blanking cover end face to the distance of blanking cover end face.
Preferably, the central angle of adjacent described first claw is equal, and the central angle of adjacent described second claw is equal, and the central angle of adjacent described 3rd claw is equal.
Preferably, described external part is elastic external part.
Preferably, the distance tolerance of described first claw holding section distance=machined surface to the distance of the distance=the second claw holding section of the second claw holding section to the 3rd claw holding section and non-machined surface.
The beneficial effects of the utility model are: designed by the claw of three kinds of differing heights, it is possible to meet the matching requirements that machined surface is big with the spacing tolerance of non-machined surface, reduce the processing technique difficulty of interior hole end surface simultaneously when meeting matching requirements.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model
Fig. 2 is schematic front view of the present utility model
Fig. 3 is the schematic diagram that assembling of the present utility model completes
Detailed description of the invention
Below by Fig. 1～Fig. 3 and the mode enumerating alternative embodiments more of the present utility model; the technical solution of the utility model (including optimal technical scheme) is described in further detail, and any technical characteristic and any technical scheme in the present embodiment are all not intended to protection domain of the present utility model.
As shown in Figure 1 to Figure 3, the through hole fastening structure of the single-sided process of this utility model design, including circular blanking cover 1, the uniform multiple external parts 2 being perpendicular to described blanking cover 1 of described blanking cover 1 side end surfaces, external part 2 has certain elasticity, so being easy to when engaging and have certain surplus, in this example, design has 9 such external parts 2 altogether, and 40 ° adjacent of external part 2 interval is evenly arranged；The lateral wall on described external part 2 top is provided with the claw 3 for the wedge shape engaged by blanking cover 1 end face with machined surface 4, and the holding section of described claw 3 engages with non-machined surface 5, and described holding section is the part that claw 3 contacts with non-machined surface 5；Described claw 3 is divided into the first claw the 3.1, second claw 3.2 and the 3rd claw 3.3, in this example, three kinds of claws are respectively arranged with three, 120 ° of same claw interval arranges one, and it is sequentially arrange according to first claw the 3.1, second claw the 3.2, the 3rd such order of claw 3.3, that is, the central angle of adjacent described first claw 3.1 is equal, and the central angle of adjacent described second claw 3.2 is equal, and the central angle of adjacent described 3rd claw 3.3 is equal.
Again as shown in Figure 2, described first claw card 3.1 conjunction portion is a to the distance of blanking cover 1 end face, and the second claw 3.2 holding section is b to the distance of blanking cover 1 end face, and the 3rd claw 3.3 holding section is c to the distance of blanking cover 1 end face, wherein, a < b < c.In this example, a=11.4mm, b=12.8mm, c=14.2mm.
Again as it is shown on figure 3, the distance tolerance of described first claw 3.1 holding section distance=machined surface 4 to the distance of distance=the second claw 3.2 holding section in the second claw card 3.2 conjunction portion to the 3rd claw 3.3 holding section and non-machined surface 5.In this example, the distance d=12.99 ± 1.4mm of machined surface 4 and non-machined surface 5, say, that the distance tolerance of work face 4 and non-machined surface 5 is ± 1.4mm, and b-a=1.4mm, c-b=1.4mm.
Claims (4)
1. the through hole fastening structure of a single-sided process, it is characterized in that: include the blanking cover (1) of circle, the uniform multiple external parts (2) being perpendicular to described blanking cover (1) of described blanking cover (1) side end surfaces, the lateral wall on described external part (2) top is provided with the claw (3) of the wedge shape for being engaged by blanking cover (1) end face with machined surface (4), and the holding section of described claw (3) engages with non-machined surface (5)；Described claw (3) is divided into the first claw (3.1), the second claw (3.2) and the 3rd claw (3.3), described first claw (3.1) holding section to distance < the second claw (3.2) holding section of blanking cover (1) end face to distance < the 3rd claw (3.3) holding section of blanking cover (1) end face to the distance of blanking cover (1) end face.
2. the through hole fastening structure of single-sided process according to claim 1, it is characterized in that: the central angle of adjacent described first claw (3.1) is equal, the central angle of adjacent described second claw (3.2) is equal, and the central angle of adjacent described 3rd claw (3.3) is equal.
3. the through hole fastening structure of single-sided process according to claim 1, it is characterised in that: described external part (2) is elastic external part.
4. the through hole fastening structure of single-sided process according to claim 1 and 2, it is characterised in that: the distance tolerance of described first claw (3.1) holding section distance=machined surface (4) to the distance of distance=the second claw (3.2) holding section of the second claw (3.2) holding section to the 3rd claw (3.3) holding section and non-machined surface (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520936893.0U CN205342488U (en) | 2015-11-20 | 2015-11-20 | Through -hole fastening structure of single face processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520936893.0U CN205342488U (en) | 2015-11-20 | 2015-11-20 | Through -hole fastening structure of single face processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205342488U true CN205342488U (en) | 2016-06-29 |
Family
ID=56167417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520936893.0U Expired - Fee Related CN205342488U (en) | 2015-11-20 | 2015-11-20 | Through -hole fastening structure of single face processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205342488U (en) |
-
2015
- 2015-11-20 CN CN201520936893.0U patent/CN205342488U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 |