CN208772280U - The mold of rivet body in a kind of aviation rivet - Google Patents
The mold of rivet body in a kind of aviation rivet Download PDFInfo
- Publication number
- CN208772280U CN208772280U CN201821118394.0U CN201821118394U CN208772280U CN 208772280 U CN208772280 U CN 208772280U CN 201821118394 U CN201821118394 U CN 201821118394U CN 208772280 U CN208772280 U CN 208772280U
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- rivet
- rivet body
- mold
- die
- punch die
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Abstract
The utility model discloses a kind of molds of rivet body in aviation rivet, including punch die and lower die, the punch die is arranged in upper end, through-hole is provided in punch die, the through-hole lower end is provided with stepped hole, hard alloy layer is provided on the inside of the punch die, punch die lower end is provided with lower die, casing is provided in the lower die, it is provided with alloy needle in the casing, calibrating strap is provided on the alloy needle, alloy needle top is provided with rivet body, it is provided with macropore and aperture in the rivet body, is provided with hard alloy layer in the lower die.The utility model has the beneficial effects that structure is simple, it is reasonable to be related to, simplifies rivet body manufacturing procedure, improves the hardness of mold and extend its service life.
Description
Technical field
The utility model relates to rivet processing equipment fields, and in particular to the mold of rivet body in a kind of aviation rivet.
Background technique
Existing rivet product is one of most common fastener, for the expected structure connection that do not dismantle.Generally by rivet body,
Blind rivet two parts composition, rivet body are the parts for connecting riveting parts, and for structural type rivet, the structure of rivet body for riveting at
Type, raising rivet performance suffer from important influence.
The rivet body of currently manufactured rivet, in inner hole process, since macropore tube wall is too thin, dispensable mould molding, alloy needle
Easily be deformed, therefore cold-heading molding can not be applicable in, the main reason is that by the processing technology and material used of rivet body and
It causes, is current problem to be solved.
Utility model content
In view of the above-mentioned problems, the utility model is intended to provide a kind of simple structure and reasonable design, improves die hardness and prolong
The mold of rivet body in the Novel rivet of service life is grown.
To realize that the technical purpose, the embodiment of the utility model be: the mold of rivet body in a kind of aviation rivet, including punch die
And lower die, the punch die setting are provided with through-hole in upper end, punch die, the through-hole lower end is provided with stepped hole, described
Punch die on the inside of be provided with hard alloy layer, punch die lower end is provided with lower die, and casing, the set are provided in the lower die
It is provided with alloy needle in pipe, is provided with calibrating strap on the alloy needle, alloy needle top is provided with rivet body, in the rivet body
It is provided with macropore and aperture, is provided with hard alloy layer in the lower die.
The calibrating strap is located at the intersection of macropore and aperture.
The stepped hole and rivet body upper end cooperates.
The stepped hole is the trapezoidal hole including top margin.
The rivet body outer diameter is 0.03-0.04mm smaller than lower die inner hole.
The syringe needle of the alloy needle is trapezoidal.
The utility model has the beneficial effects that structure is simple, it is reasonable to be related to, simplifies rivet body manufacturing procedure, mold is improved
Hardness and extend its service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of rivet body in the utility model；
Fig. 3 is structural schematic diagram when the utility model processes rivet body；
In figure: 1, punch die；2, stepped hole；3, alloy needle；4, casing；5, lower die；6, calibrating strap；7, rivet body；7-1, aperture；
7-2, macropore；8, hard alloy layer；9, through-hole.
Specific embodiment
The utility model is described in further details in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, specific embodiment described in the utility model are as follows: the mold of rivet body in a kind of aviation rivet, including
Punch die 1 and lower die 5, the setting of punch die 1 are provided with through-hole 9 in upper end, punch die 1, and 9 lower end of through-hole is provided with platform
Rank hole 2, hard alloy layer 8 is provided on the inside of the punch die 1, and 1 lower end of punch die is provided with lower die 5, setting in the lower die 5
There is casing 4, alloy needle 3 is provided in the casing 4, calibrating strap 6 is provided on the alloy needle 3,3 top of alloy needle is set
It is equipped with rivet body 7, macropore 7-2 and aperture 7-1 are provided in the rivet body 7, is provided with hard alloy layer 8 in the lower die 5.
The calibrating strap 6 is located at the intersection of macropore 7-2 and aperture 7-1.
The stepped hole 2 and 7 upper end of rivet body cooperates.
The stepped hole 2 is the trapezoidal hole including top margin.
7 outer diameter of rivet body is 0.03-0.04mm smaller than 5 inner hole of lower die.
The syringe needle of the alloy needle 3 is trapezoidal.
When it is implemented, rivet body 7 is sent to 5 front of lower die by feed clamp first, lower die 5, punch die are then pushed by punch die 1
1 is made type with lower die 5,3 pier of alloy needle, and last casing 4 ejects rivet body 7 from lower die 5.
5 bore dia of lower die is bigger than 7 lower end diameter of rivet body, and the calibrating strap 6 of alloy needle 3 squeezes 7 stretcher strain of rivet body, makes rivet body
7 aperture 7-1 stretching becomes macropore 7-2, under the action of the buffer strip of 6 front end of calibrating strap, squeeze the upper end of aperture 7-1 will not
Pressure is shunk.
The stepped hole 2 of punch die is the big type conical bench in aperture, and the head dummy than rivet body 7 is slightly larger, and the head dummy of depth and rivet body 7 is thick
Degree is the same, simplifies the manufacturing procedure of rivet body 7, the hard alloy layer 8 of type chamber cavity wall improves die hardness, to optimize
The service performance of mold, extends service life.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, all according to this
The technical spirit of utility model any trickle amendment, equivalent replacement and improvement to the above embodiments should be included in this
Within the protection scope of utility model technical solution.
Claims (6)
1. the mold of rivet body in a kind of aviation rivet, including punch die and lower die, it is characterised in that: the punch die is arranged upper
It holds, through-hole is provided in punch die, the through-hole lower end is provided with stepped hole, is provided with hard alloy on the inside of the punch die
Layer, punch die lower end are provided with lower die, casing are provided in the lower die, and alloy needle is provided in the casing, described
Calibrating strap is provided on alloy needle, alloy needle top is provided with rivet body, and macropore and aperture are provided in the rivet body, described
Hard alloy layer is provided in lower die.
2. the mold of rivet body in a kind of aviation rivet according to claim 1, it is characterised in that: the calibrating strap is located at
The intersection of macropore and aperture.
3. the mold of rivet body in a kind of aviation rivet according to claim 1, it is characterised in that: the stepped hole and riveting
The cooperation of body upper end.
4. the mold of rivet body in a kind of aviation rivet according to claim 1 or 3, it is characterised in that: the stepped hole
For the trapezoidal hole including top margin.
5. the mold of rivet body in a kind of aviation rivet according to claim 1, it is characterised in that: the rivet body outer diameter ratio
The small 0.03-0.04mm of lower die inner hole.
6. the mold of rivet body in a kind of aviation rivet according to claim 1, it is characterised in that: the needle of the alloy needle
Head is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821118394.0U CN208772280U (en) | 2018-07-16 | 2018-07-16 | The mold of rivet body in a kind of aviation rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821118394.0U CN208772280U (en) | 2018-07-16 | 2018-07-16 | The mold of rivet body in a kind of aviation rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208772280U true CN208772280U (en) | 2019-04-23 |
Family
ID=66153734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821118394.0U Active CN208772280U (en) | 2018-07-16 | 2018-07-16 | The mold of rivet body in a kind of aviation rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208772280U (en) |
-
2018
- 2018-07-16 CN CN201821118394.0U patent/CN208772280U/en active Active
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