CN201693121U - Internal-knurled riveting fixture - Google Patents
Internal-knurled riveting fixture Download PDFInfo
- Publication number
- CN201693121U CN201693121U CN2010202037192U CN201020203719U CN201693121U CN 201693121 U CN201693121 U CN 201693121U CN 2010202037192 U CN2010202037192 U CN 2010202037192U CN 201020203719 U CN201020203719 U CN 201020203719U CN 201693121 U CN201693121 U CN 201693121U
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- CN
- China
- Prior art keywords
- riveting
- shaft
- free ends
- riveted
- knurled
- 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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- Insertion Pins And Rivets (AREA)
Abstract
The utility model provides an internal-knurled riveting fixture, which requires no positioning in riveting, and is even in riveting, convenient and simple in operation, low in riveting rejection rate and high in efficiency. The internal-knurled riveting fixture comprises a shaft, a journal at one end of the shaft is radially divided into more than two free ends evenly distributed on the periphery of the shaft, and the free ends can elastically deform in the radial direction. When in use, the internal-knurled riveting fixture enters the journal along the axis of the shaft by the aid of an ejector pin, the free ends are pushed away by the ejector pin to radially move outwards, and consequentially the free end can push an outer coil of a rivet knurl of a riveted part to further wrap a spring wire so as to complete riveting. The ejector pin moves along the axis of the shaft to leave the journal portion, and the free ends are restored to original positions under the action of elasticity so that the riveted part can be taken out as the riveted part is separated from the free ends.
Description
Technical field
The utility model relates to a kind of riveted joint anchor clamps.
Background technology
When being riveted on the two ends of a spring to two respectively by riveted spare, adopt traditional riveting process, be to compress by riveted spare, and then make spring wire be clamped by riveted spare by the outside.
Use traditional handicraft, one of spring one end riveted by after the riveted spare, in the other end riveted another one of spring during by riveted spare, because drift can't enter and can't finish, and causes production to carry out, though perhaps can produce, but inconvenient operation, riveted joint efficient is low and scrappage is low.
Summary of the invention
Need not locate when the purpose of this utility model provides a kind of riveted joint, riveted is even, and easy to operate simple, the riveted joint scrappage is low, the internally riveting clamp that efficient is high.
This internally riveting clamp comprises an axle, and the axle journal in axle one end radially is separated into the free end more than 2, and each free end is distributed on the circumferential of axle; Strain can take place in each free end in the radial direction.
When using the utility model, enter collar with a thimble along the axis of described axle, each free end is pushed open by thimble and is radially moved laterally, can make free end promote the outer volume of being spent by the riveting of riveted spare like this, and then spring wire is wrapped up, and finishes riveted joint.Thimble moves and leaves collar along the axis of described axle, and each free end returns to the home position again under elastic reaction.Make the good part of riveted joint again free end be separated, can take out the good part of riveted joint.The beneficial effects of the utility model are not rivet to locate, and riveted is even, and easy to operate simple, the riveted joint scrappage is low, the efficient height.
As further improvement, has the shaft shoulder on the described axle journal.Pass through round-corner transition between the described shaft shoulder and the axle journal.
As further improvement, described axle journal has centre bore along axis.
As further improvement, described free end is 5.
As further improvement, the material of described axle is spring steel 65Mn.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is the schematic diagram of thimble when inserting axle journal.
Fig. 4 is the utility model reference diagram (thimble does not insert axle journal) in use.
Fig. 5 is the utility model another reference diagram (thimble insertion axle journal) in use.
The specific embodiment
Referring to the internally riveting clamp shown in Fig. 1,2, comprise an axle, the upper end of axle is the axle journal 1 that has centre bore 13, the axle journal periphery has the shaft shoulder 2, passes through fillet 3 transition between the shaft shoulder 2 and the axle journal 1.Axle journal is separated into 5 free ends (lobe of blooming) 4 by radial slot 5, and each free end is distributed on the circumferential of axle.The material of described axle is spring steel 65Mn.Strain can take place in axle journal each free end 4 in the radial direction.
When one by riveted spare 6 by riveted after on the spring wire 8 of spring 7 one ends, preparation another by riveted spare 9 riveteds when the other end spring wire 12 of spring, operate as follows: referring to Fig. 4, spring 7 is placed on up and down on the platform 14, axle journal 1 is extend into the spring wire 12 of spring bottom from the bottom of spring, make fillet 3 with spent by the riveting of riveted spare 9 10 corresponding.The axis of thimble 11 edge axles passes spring 7 and extend in the axle journal 1.When thimble continues to move down, referring to Fig. 5, each free end is outwards strutted, thereby cause the outer volume of riveting flower, and then spring wire 12 is wrapped up, finish riveted joint.Thimble moves up, and each free end is reclaimed, and good part is separated to make riveted joint.
Because the radial load that anchor clamps are subjected to during riveted joint is bigger, so need the good mechanical performance, promptly requires elasticity also to require rigidity.Based on this, we have selected the good spring steel 65Mn of elasticity and rigidity.Because what take when riveted joint is the structure of blooming, different in the different parts force request difference of whole anchor clamps to the resilient stiff requirement of material, in order to reach this purpose.We take the method for local heat treatmet, main working position when the head of lobe of blooming is riveted joint, so this part need be heat-treated fully, guarantee high strength, reduce heat treatment temperature by head gradually to afterbody, until not heat-treating, increase elasticity with regard to progressively minimizing rigidity like this, reach the material requirements of anchor clamps when producing.
The utility model is used for the product of needs riveted joints warp (interior riveting) from inside to outside, thereby reaches the purpose that two kinds of parts are riveted together.In the utility model can be finished easily riveting and rivet stressed evenly, have good technological operation.
Claims (6)
1. internally riveting clamp comprises an axle, it is characterized in that: the axle journal of axle one end radially is separated into the free end more than 2, and each free end is distributed on the circumferential of axle; Strain can take place in each free end in the radial direction.
2. anchor clamps according to claim 1 is characterized in that: have the shaft shoulder on the described axle journal.
3. anchor clamps according to claim 2 is characterized in that: pass through round-corner transition between the described shaft shoulder and the axle journal.
4. anchor clamps according to claim 1 is characterized in that: described axle journal has centre bore along axis.
5. anchor clamps according to claim 1 is characterized in that: described free end is 5.
6. anchor clamps according to claim 1 is characterized in that: the material of described axle is spring steel 65Mn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202037192U CN201693121U (en) | 2010-05-26 | 2010-05-26 | Internal-knurled riveting fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202037192U CN201693121U (en) | 2010-05-26 | 2010-05-26 | Internal-knurled riveting fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201693121U true CN201693121U (en) | 2011-01-05 |
Family
ID=43394365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202037192U Expired - Fee Related CN201693121U (en) | 2010-05-26 | 2010-05-26 | Internal-knurled riveting fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201693121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844196A (en) * | 2010-05-26 | 2010-09-29 | 苏州铭峰精密机械有限公司 | Internally riveting clamp |
-
2010
- 2010-05-26 CN CN2010202037192U patent/CN201693121U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844196A (en) * | 2010-05-26 | 2010-09-29 | 苏州铭峰精密机械有限公司 | Internally riveting clamp |
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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: 20110105 Termination date: 20130526 |