CN205217660U - Expansion tube mould - Google Patents
Expansion tube mould Download PDFInfo
- Publication number
- CN205217660U CN205217660U CN201520985765.5U CN201520985765U CN205217660U CN 205217660 U CN205217660 U CN 205217660U CN 201520985765 U CN201520985765 U CN 201520985765U CN 205217660 U CN205217660 U CN 205217660U
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- CN
- China
- Prior art keywords
- tube mould
- expand tube
- mould
- tube
- rectangular tube
- 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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Abstract
The utility model provides an expansion tube mould, its body are the cube includes the cross section is the inflation area of rectangle to be taken with the entry, entry area is the flaring type. This technical scheme's expansion tube mould passes the rectangular pipe after the drawing under drive arrangement's drive, can be with the indent on the rectangular pipe, the flattening of sining, simple structure, convenient to use.
Description
Technical field
The utility model relates to a kind of expand tube mould.
Background technology
Aluminum rectangular tube is generally by technological formings such as machined, extruding or stretchings.But machined and extruding all exist a lot of shortcoming, such as, the borings amount of process for machining is large, and metal waste is serious, and production efficiency is low, and can only the shorter rectangular tube of processing length.The rectangular tube that extrusion process is produced, its appearance and size low precision, and the large gauge rectangular tube that wall thickness thicker (>=15mm) can only be processed, and owing to there being seam to stitch, therefore tubing bearing capacity is not enough.Although drawing process can overcome the deficiency of machined and extrusion process existence, stretch in producing, due to the inhomogeneities of metal flow, after often stretching, rectangular tube there will be indent phenomenon, and longer wide-edge is middle there will be the phenomenon of subsiding inward.
Utility model content
The purpose of this utility model is to provide a kind of structure simple expand tube mould, in order to the rectangular tube after smooth stretching.
The purpose of this utility model is achieved in that a kind of expand tube mould, and its body is cube, and comprise zone of swelling and entrance band that cross section is rectangle, entrance band is flaring type.The expand tube mould of the technical program passes the rectangular tube after stretching under the driving of drive unit, can by the indent on rectangular tube, leveling of subsiding, and structure is simple, easy to use.
In order to when ensureing to flatten the precision of rear rectangular tube and consider to stretch, the elasticity of rectangular tube is recovered, the length of above-mentioned zone of swelling and the wide length slightly larger than rectangular tube finished product and wide.
In order to not scratch rectangular tube inner surface, the limit of above-mentioned body outer surface and the junction on limit are arc.
For the ease of operating and not affecting expand tube effect, the center of above-mentioned body is provided with the connecting hole be connected with drive rod.
In order to easy to connect, establish screw thread in above-mentioned connecting hole, drive rod and body are threaded connection.
In order to structure is simple and firm, above-mentioned connecting hole is through hole.
The utility model has following beneficial effect:
1, the utility model expand tube mould can by the indent on rectangular tube, leveling of subsiding through the rectangular tube after stretching under the driving of drive unit, and structure is simple, easy to use.
2, the utility model expand tube mould is applicable to thin-walled rectangular tube, and the rectangular tube dimensional accuracy after leveling is high.
Accompanying drawing explanation
Fig. 1 is the utility model expand tube mould structure schematic diagram;
Fig. 2 carries out expand tube schematic diagram with expand tube mould in the utility model embodiment.
In figure, 1. rectangular tube, 2, body, 2-1. zone of swelling, 2-2. entrance band, 3. connecting hole.
Detailed description of the invention
Embodiment, a kind of expand tube mould, body 2 is cube, and comprise zone of swelling 2-1 and entrance band 2-2, entrance band 2-2 is flaring type.This expand tube mould is used for the rectangular tube 1 after smooth stretching.
The length of zone of swelling 2-1 and the wide length slightly larger than rectangular tube 1 finished product and wide.
The limit of body 2 outer surface and the junction on limit are arc.
Body 2 be provided with the connecting hole 3 be connected with drive rod.
Establish screw thread in connecting hole 3, drive rod and body 2 are threaded connection.
Connecting hole 3 is through hole, also can be blind hole.
In the present embodiment, body 2 is hollow.Body 2 also can be solid.
In the present embodiment, rectangular tube 1 is aluminum rectangular tube, and its production technology is: circular tube blank → woollen annealing → transition stretching → form drawing → tension straingtening → expand tube → tension straingtening → be cut into product, sampling → packaging, warehouse-in.
In the present embodiment, finished product is large gauge rectangle thin wall pipe, i.e. diagonal line length >=the 200mm of rectangular tube, wall thickness≤10mm, length-width ratio >=2 of rectangular tube.Such as: 230 × 100 × 6,240 × 100 × 5,285 × 100 × 6 equal-specification rectangular tubes.
Transition is stretched as and circular tube blank is stretched as elliptical tube, and elliptical tube is stretched as rectangular tube 1 by shaping being stretched as.
Drawing process needs to use corresponding mould, and mould comprises stage die, finishing die and the utility model expand tube mould.Finishing die ensures the appearance and size precision of rectangular tube.
Under additional pulling force effect, force metal circular tube woollen to be stretched as elliptical tube by the hole crossing plating mould, then obtain rectangular tube 1 by the hole of finishing die.Stretch in producing, due to the inhomogeneities of metal flow, rectangular tube 1 after stretching just there will be indent phenomenon, collapse phenomenon is inward there will be in the middle of longer wide-edge, interior concave defect can be eliminated by the utility model expand tube mould, realize leveling, the appearance and size precision of the rectangular tube 1 after leveling is high (comprising plane clearance, perpendicularity, flexibility, concentricity etc.), and wall thickness is thin and even.
Claims (8)
1. an expand tube mould, is characterized in that: its body (2) is cube, and comprise zone of swelling (2-1) and entrance band (2-2) that cross section is rectangle, described entrance band (2-2) is flaring type.
2. expand tube mould as claimed in claim 1, is characterized in that: the size of described zone of swelling (2-1) is slightly larger than the size of rectangular tube (1) finished product.
3. expand tube mould as claimed in claim 1 or 2, is characterized in that: the limit of described body (2) outer surface and the junction on limit are arc.
4. expand tube mould as claimed in claim 1 or 2, is characterized in that: described body (2) is provided with the connecting hole (3) be connected with drive rod.
5. expand tube mould as claimed in claim 3, is characterized in that: described body (2) is provided with the connecting hole (3) be connected with drive rod.
6. expand tube mould as claimed in claim 4, it is characterized in that: described connecting hole establishes screw thread in (3), described body (2) is connected with drive rod by screw thread.
7. expand tube mould as claimed in claim 5, it is characterized in that: described connecting hole establishes screw thread in (3), described body (2) is connected with drive rod by screw thread.
8. expand tube mould as claimed in claim 5, is characterized in that: described connecting hole (3) is through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520985765.5U CN205217660U (en) | 2015-12-02 | 2015-12-02 | Expansion tube mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520985765.5U CN205217660U (en) | 2015-12-02 | 2015-12-02 | Expansion tube mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205217660U true CN205217660U (en) | 2016-05-11 |
Family
ID=55892756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520985765.5U Expired - Fee Related CN205217660U (en) | 2015-12-02 | 2015-12-02 | Expansion tube mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205217660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312360A (en) * | 2015-12-02 | 2016-02-10 | 重庆西重特种铝业有限公司 | Pipe expanding die |
-
2015
- 2015-12-02 CN CN201520985765.5U patent/CN205217660U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312360A (en) * | 2015-12-02 | 2016-02-10 | 重庆西重特种铝业有限公司 | Pipe expanding die |
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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: 20160511 Termination date: 20171202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |