CN201862670U - Movable joint mandril for manufacturing leisure chair made of thin-walled steel tube - Google Patents
Movable joint mandril for manufacturing leisure chair made of thin-walled steel tube Download PDFInfo
- Publication number
- CN201862670U CN201862670U CN2010205560401U CN201020556040U CN201862670U CN 201862670 U CN201862670 U CN 201862670U CN 2010205560401 U CN2010205560401 U CN 2010205560401U CN 201020556040 U CN201020556040 U CN 201020556040U CN 201862670 U CN201862670 U CN 201862670U
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- movable joint
- steel tube
- mandril
- thin
- walled steel
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Abstract
The utility model discloses a movable joint mandril for manufacturing a leisure chair made of a thin-walled steel tube; and the technical problem to be solved by the utility model is to provide movable joint mandril equipment that the steel tube cannot have corrugation and deformation phenomena when the thin-walled steel tube is cold-bent. In order to solve the problem, the technical scheme is to provide the movable joint mandril, which is characterized in that the articulated mandril mainly comprises a set of movable joints which are connected through elastic metal sheets arranged on the surfaces of the movable joints. When the movable joint mandril is adopted to machine a special thin-walled steel tube, and the special thin-walled steel tube is cold-bent, the movable joint positions of the mandril can change along with the bending degree of the steel tube. The corrugation and deformation phenomena of the steel tube produced during the bending are repaired by means of firstly adopting the second forming operation mode of forward bending followed by reverse bending, and then by means of core-pulling technology, so that a workpiece can meet the requirements on design and quality.
Description
Technical field
The utility model relates to a kind of process unit, and cold bend(ing) thin-wall steel tube is especially made the movable joint plug of leisure chaise longue.
Background technology
Along with the demand of international market to metal tube structure outdoor furniture increases progressively significantly, special-shaped metal tube is at metal tube structure seat, use in the products such as desk more and more widely, what use was maximum in the special-shaped metal tube is steel tubes and special-shaped aluminum pipe, simultaneously for making seat, product-formings such as desk are attractive in appearance, the manufacture craft that often needs cold bend(ing), in general, the steel tubes of special-shaped aluminum pipe and wall thickness＞1.2 ㎜ or the technology ratio of single forward cold bend(ing) are easier to solve, but as wall thickness＜1.2 ㎜, when particularly＜1 the thin-wall special-shaped steel pipe of ㎜ needs forward and reverse two sides crooked, steel pipe will be wrinkling, be out of shape, can not satisfy the quality requirement of product.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of when the cold bending thin wall steel pipe, the movable joint plug of the wrinkling and metaboly that steel pipe can not produce equipment.
For addressing the above problem, the technical solution adopted in the utility model provides a kind of movable joint plug, it is characterized in that described movable joint plug mainly is made of one group of movable joint, and described movable joint connects by being arranged on its surperficial elastic sheet metal.
The movable joint plug of described manufacturing thin-wall steel tube leisure chaise longue is characterized in that described elastic sheet metal is the bar shaped steel disc.
Adopt the processing thin-walled steel tubes of movable joint plug, when thin-wall special-shaped steel pipe clod wash, the movable joint position of plug can change along with the angle of tube bending.At first adopt the forward bending mode of operation of back-flexing post forming again, adopt the technology of loosing core to repair the wrinkling and metaboly that steel pipe produces then when bending, make workpiece reach design and quality requirement.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present utility model.
Structural representation when Fig. 2 is Fig. 1 bending.
The specific embodiment
As depicted in figs. 1 and 2, movable joint plug of the present utility model, mainly constitute by one group of movable joint 2, movable joint 2 can adopt metal material to make, and the shape of the metal tube of its shape and thin-walled leisure chaise longue adapts, and diameter is advisable with the internal diameter of the steel tubes that is slightly less than the thin-walled leisure chaise longue, the size of movable joint 2 is decided according to the angle of required bending, need crooked angle big more, the movable joint number is many more, and the position is long more.After movable joint 2 is made, connect by being arranged on its surperficial bar shaped elastic steel sheet 3.
Operation principle:
When forward and reverse bending, adopt the technology of post forming.At first the movable joint plug that adapts is inserted in the steel tubes according to the forward angle of bend, need the movable joint plug is placed on a side of bar shaped elastic steel sheet the one side of the required bending direction of workpiece during placement, after the workpiece moulding for the first time, utilize the core-pulling device of bending machine that plug is extracted out, the elasticity of steel disc can be repaired the wrinkling or metaboly of crooked position automatically.Carry out the back-flexing second time more as stated above.
Claims (2)
1. a movable joint plug of making the thin-wall steel tube leisure chaise longue is characterized in that described movable joint plug mainly is made of one group of movable joint (2), and described movable joint (2) connects by being arranged on its surperficial elastic sheet metal (3).
2. the movable joint plug of manufacturing thin-wall steel tube leisure chaise longue according to claim 1 is characterized in that described elastic sheet metal (3) is the bar shaped steel disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205560401U CN201862670U (en) | 2010-10-11 | 2010-10-11 | Movable joint mandril for manufacturing leisure chair made of thin-walled steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205560401U CN201862670U (en) | 2010-10-11 | 2010-10-11 | Movable joint mandril for manufacturing leisure chair made of thin-walled steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201862670U true CN201862670U (en) | 2011-06-15 |
Family
ID=44133838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205560401U Expired - Fee Related CN201862670U (en) | 2010-10-11 | 2010-10-11 | Movable joint mandril for manufacturing leisure chair made of thin-walled steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201862670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240311A (en) * | 2013-05-27 | 2013-08-14 | 倪慨宇 | Flexibility core rod for stretching hollow metal tube section bar to be bent |
-
2010
- 2010-10-11 CN CN2010205560401U patent/CN201862670U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240311A (en) * | 2013-05-27 | 2013-08-14 | 倪慨宇 | Flexibility core rod for stretching hollow metal tube section bar to be bent |
| CN103240311B (en) * | 2013-05-27 | 2015-06-17 | 倪慨宇 | Flexibility core rod for stretching hollow metal tube section bar to be bent |
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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: 20110615 Termination date: 20151011 |
|
| EXPY | Termination of patent right or utility model |