CN203695701U - Envelope hemmer - Google Patents
Envelope hemmer Download PDFInfo
- Publication number
- CN203695701U CN203695701U CN201320808690.4U CN201320808690U CN203695701U CN 203695701 U CN203695701 U CN 203695701U CN 201320808690 U CN201320808690 U CN 201320808690U CN 203695701 U CN203695701 U CN 203695701U
- Authority
- CN
- China
- Prior art keywords
- former
- formpiston
- hemmer
- pedestal
- group
- 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
Abstract
The utility model relates to an envelope hemmer. A group of male dies and a group of female dies are distributed on the upper surface of a base; outward inclined surfaces are below the revolution surfaces of the male dies, and inward inclined surfaces are below the revolution surface of the female dies and are matched with the excircle surfaces of the male dies at corresponding positions; the inner holes of each male die and each female die are in coaxial interference fit with the upper part of a shaft by virtue of bearings, and the lower part of the shaft is in interference fit with an inner hole in the upper surface of the base; a bolt is in threaded connection with the base after passing through the inner hole of the shaft. The envelope hemmer can be used for bending the edge of an envelope for a certain angle or a section of arc line, so that the edge rigidity of the envelope is enhanced, and the problems of envelope non-laminating and riveting clearances during a riveting process can be well solved.
Description
Technical field
The utility model relates to a kind of covering hemmer, for blower fan covering assembling riveted joint field.
Background technology
There is the material of some blower fan coverings thinner, generally only has the aluminium alloy after 0.4-0.5 millimeter, in assembling riveted joint process, due to factor impacts such as Skin Parts make-up machine riveted joint material stress deformations, have and between covering, overlap intermittency, can not meet drawing code requirement, the startup profile that has both affected aircraft also affects the presentation quality of aircraft.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of covering hemmer, this covering hemmer can be to the certain angle of covering edge warpage or one end camber line, to increase the rigidity at covering edge, well solve covering not fitting and riveting clearance issues in riveted joint process.
For overcoming the above problems, concrete technical scheme of the present utility model is as follows: a kind of covering hemmer, be distributed with one group of formpiston and one group of former at the upper surface of pedestal, the surface of revolution below of formpiston is outside inclined plane, the below of the surface of revolution of former is inside inclined plane, and coordinates with the periphery of the formpiston of correspondence position; In the endoporus of each formpiston and former by bearing the coaxial interference fit in top with axle, the endoporus interference fit of the below of axle and pedestal upper surface; Bolt connects through base thread after the endoporus of axle.
The upper surface of described pedestal is provided with several grooves, the position of groove is corresponding with the position of former, in groove, be provided with slide block, the bolt of former is threaded with slide block, inner face at slide block is connected with pedestal by spring, the outer face of slide block is provided with side plate jointly, and side plate is flexibly connected with the distolateral of pedestal; On side plate, be provided with equally distributed rotating shaft, one end of rotating shaft is threaded with slide block, and the other end is connected with knob after stretching out side plate.
The outward-dipping angle of one group of described formpiston increases successively, the corresponding increase in angle of inclination of another inside angle of inclination of group former and corresponding formpiston.
This covering hemmer is applicable in the shaping of little crimp, little radian and non-rectilinear part.For feature and the demand of different parts, can design the hemmer of a group or more mutual interlock roller, simultaneously replaceable different former formpistons combination, can realize the be shaped little crimp of various angles and low-angle skin part.
Accompanying drawing explanation
Fig. 1 is the top view of covering hemmer.
Fig. 2 is the A-A cutaway view of covering hemmer.
The specific embodiment
As depicted in figs. 1 and 2, a kind of covering hemmer, is distributed with one group of formpiston 5 and one group of former 4 at the upper surface of pedestal 1, and the surface of revolution below of formpiston 5 is outside inclined plane, the below of the surface of revolution of former 4 is inside inclined plane, and coordinates with the periphery of the formpiston 5 of correspondence position; In the endoporus of each formpiston 5 and former 4 by bearing 12 the coaxial interference fit in top with axle 11, the endoporus interference fit of the below of axle 11 and pedestal 1 upper surface; Bolt 15 is threaded through pedestal 1 after the endoporus of axle 11.
The upper surface of described pedestal 1 is provided with several grooves, the position of groove is corresponding with the position of former 4, in groove, be provided with slide block 2, the bolt 15 of former 4 is threaded with slide block 2, inner face at slide block 2 is connected with pedestal 1 by spring 3, the outer face of slide block 2 is provided with side plate 10 jointly, and side plate 10 is flexibly connected with the distolateral of pedestal 1; On side plate, be provided with equally distributed rotating shaft 16, one end of rotating shaft 16 is threaded with slide block 2, and the other end is connected with knob 17 after stretching out side plate 10.
The outward-dipping angle of one group of described formpiston 5 increases successively, the corresponding increase in angle of inclination of another inside angle of inclination of group former and corresponding formpiston.
This covering hemmer adopts said structure, can be by the position relationship of knob adjusting slider and pedestal, thereby regulate the gap of former and formpiston, it is the edge that two rollers well clamp covering, with the hand hemmer of taking, one end from covering is slowly moved the other end to, and covering will be flexed into the angle of requirement.
Claims (3)
1. a covering hemmer, it is characterized in that: be distributed with one group of formpiston (5) and one group of former (4) at the upper surface of pedestal (1), the surface of revolution below of formpiston (5) is outside inclined plane, the below of the surface of revolution of former (4) is inside inclined plane, and coordinates with the periphery of the formpiston (5) of correspondence position; In the endoporus of each formpiston (5) and former (4) by bearing (12) the coaxial interference fit in top with axle (11), the endoporus interference fit of the below of axle (11) and pedestal (1) upper surface; Bolt (15) is threaded through pedestal (1) after the endoporus of axle (11).
2. covering hemmer as claimed in claim 1, it is characterized in that: the upper surface of described pedestal (1) is provided with several grooves, the position of groove is corresponding with the position of former (4), in groove, be provided with slide block (2), the bolt (15) of former (4) is threaded with slide block (2), be connected with pedestal (1) by spring (3) at the inner face of slide block (2), the outer face of slide block (2) is provided with side plate (10) jointly, the distolateral flexible connection of side plate (10) and pedestal (1); On side plate, be provided with equally distributed rotating shaft (16), one end of rotating shaft (16) is threaded with slide block (2), and the other end is connected with knob (17) after stretching out side plate (10).
3. covering hemmer as claimed in claim 1, is characterized in that: the outward-dipping angle of described one group of formpiston (5) increases successively, the corresponding increase in angle of inclination of another inside angle of inclination of group former and corresponding formpiston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320808690.4U CN203695701U (en) | 2013-12-11 | 2013-12-11 | Envelope hemmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320808690.4U CN203695701U (en) | 2013-12-11 | 2013-12-11 | Envelope hemmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203695701U true CN203695701U (en) | 2014-07-09 |
Family
ID=51046200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320808690.4U Expired - Fee Related CN203695701U (en) | 2013-12-11 | 2013-12-11 | Envelope hemmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203695701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170753A (en) * | 2015-06-12 | 2015-12-23 | 江阴职业技术学院 | Edge-turning machine for arc slabs |
-
2013
- 2013-12-11 CN CN201320808690.4U patent/CN203695701U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170753A (en) * | 2015-06-12 | 2015-12-23 | 江阴职业技术学院 | Edge-turning machine for arc slabs |
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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: 20140709 Termination date: 20161211 |