CN204817615U - Hollow tubular product bender utensil - Google Patents
Hollow tubular product bender utensil Download PDFInfo
- Publication number
- CN204817615U CN204817615U CN201520477740.4U CN201520477740U CN204817615U CN 204817615 U CN204817615 U CN 204817615U CN 201520477740 U CN201520477740 U CN 201520477740U CN 204817615 U CN204817615 U CN 204817615U
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- China
- Prior art keywords
- hollow tube
- bending
- hollow tubular
- tubular product
- mould
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- Expired - Fee Related
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The utility model provides a hollow tubular product bender utensil, hollow tubular product includes the inner chamber, the instrument of bending includes inside lining mould, outer lining mould and rotatable bending die, the inside lining mould is the bar to the cross sectional shape looks adaptation of its cross sectional shape and hollow tubular product inner chamber, the edge of bending die is equipped with be connected together's sharp recess and arc recess, straight line recess and compact heap cooperation are used for pressing from both sides tight hollow tubular product, the outer lining mould is being close to arc recess one side and can press from both sides tight hollow tubular product and fix a position hollow tubular product. The utility model discloses bending when being used for making up the hollow tubular product of chair framework, can effectively avoid the wrinkling of the department of bending, fracture problem, consequently can guarantee product strength, improve return bend take shape quality and product percent of pass.
Description
Technical field
The utility model relates to a kind of hollow tube bending tool.
Background technology
At present, in order to meet the trip requirements that people increase day by day, rail transport is also constantly reforming development.In recent years, high-speed railway (hereinafter referred to as high ferro) is built widely and is put into effect, and it has the advantages such as comfortableness is high, travel speed is fast.Chair framework lightweight in high ferro is directly connected to the energy consumption of train operation, safety and speed, and light-weighted main path alleviates overall weight under the prerequisite meeting structural strength and security.Because the quantity of chair framework is large, therefore its overall weight is also large, so the chair framework used at present generally adopts high strength steel material or light alloy material manufacture.The structure of chair framework is mainly built by the hollow tube of high strength steel material or light alloy material, need during fabrication to carry out bending process to hollow tube, but in current bending technique, easily cause problem that is wrinkling, cracking at the bending part of hollow tube, this can affect the overall performance of chair framework, therefore, how solving this technical problem is the problem that those skilled in the art need to study.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of preventing to cause hollow tube bending tool that is wrinkling, problem of Cracking, to overcome the above-mentioned defect of prior art at bending part during hollow tube bending.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of hollow tube bending tool, and described hollow tube comprises inner chamber, and described bending tool comprises liner mould, outer lining mould and rotating bending die;
Described liner mould is bar shaped, and the cross sectional shape of its cross sectional shape and hollow tube inner chamber is suitable;
The edge of described bending die is provided with the straight-line groove and arc groove that connect together, and described straight-line groove coordinates for clamping hollow tube with a compact heap;
Described outer lining mould can clamp hollow tube and positioning hollow tube near arc groove side.
Preferably, one end of described liner mould and a pull bar are hinged.
Preferably, the length direction of the bottom land of described straight-line groove linearly groove is provided with outwardly curved protrusion, and described curved protrusion extends along the radian direction of arc groove bottom land.
Preferably, the edge of described bending die is provided with the limited impression limiting described compact heap position.
Preferably, described outer lining mould comprises two clamping parts matched, by two clamping part clamping hollow tubes.
As mentioned above, a kind of hollow tube bending tool of the utility model, has following beneficial effect:
The utility model, when bending is for building the hollow tube of chair framework, effectively can avoid wrinkling, the problem of Cracking of bending part, therefore can ensure product strength, improve bending tube forming quality and product percent of pass; In addition, structure of the present utility model is simple, easy to use, also simplify manufacturing process.When using the utility model to carry out bending forming to hollow tube, hollow tube is under the restriction of inside and outside lining mould, natural shaped along its shape, thus ensures that bending tube forming smooth surface is wrinkle resistant, achieves good effect in actual applications.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
Fig. 2 is the schematic diagram of bending die in the utility model.
Fig. 3 is the sectional view of bending die in the utility model.
In figure: 1, hollow tube 2, liner mould
3, outer lining mould 31, clamping part
4, bending die 41, straight-line groove
42, arc groove 43, curved protrusion
44, limited impression 5, compact heap
6, pull bar
Detailed description of the invention
The structure that Figure of description illustrates, ratio, size etc., content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop in scope that technology contents that the utility model discloses can contain.Simultaneously, quote in this description as " on ", D score, "front", "rear", the term such as " centre ", also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
As shown in Figure 1-Figure 3, a kind of hollow tube bending tool of the utility model, for bending hollow tube, described hollow tube 1 comprises inner chamber, bending tool of the present utility model comprises liner mould 2, outer lining mould 3 and rotating bending die 4, described liner mould 2 is bar shaped, the cross sectional shape of described liner mould 2 and the cross sectional shape of hollow tube 1 inner chamber suitable, in order to support the inner surface of hollow tube 1; The edge of described bending die 4 is provided with the straight-line groove 41 and arc groove 42 that connect together, described straight-line groove 41 coordinates for clamping hollow tube 1 with a compact heap 5, and described outer lining mould 3 can clamp hollow tube 1 pair of hollow tube 1 and positions near arc groove 42 side.
The utility model is used for bending hollow tube 1, and the cross section of described hollow tube 1 can be polygon, also can be circular, its shape does not affect use of the present utility model, for the cross section of hollow tube 1 be square, composition graphs 1-Fig. 3, its operation principle and using method are:
One, first liner mould 2 is inserted in hollow tube 1.Because can produce deformation during this bending of hollow tube 1, the size of liner mould 2 should be slightly less than the inner cavity size of hollow tube 1, to prevent the deformation affecting hollow tube 1, is also convenient to follow-up taking-up from hollow tube 1 simultaneously.
Two, embedded one end of hollow tube 1 in the straight-line groove 41 of bending die 4, then being matched with straight-line groove 41 by compact heap 5 clamps hollow tube 1, and the other end of hollow tube 1 is positioned by outer lining mould 3.In the present embodiment, the edge of described bending die 4 is provided with the limited impression 44 limiting described compact heap 5 position, thus the cooperation of both convenience, further, described limited impression 44 is directly opened in the bottom land of described straight-line groove 41, and offers along the length direction of straight-line groove 41.In addition, for the ease of the location of outer lining mould 3 pairs of hollow tubes 1, the mould of outer lining described in the present embodiment 3 comprises two clamping parts matched 31, clamps hollow tube 1 by two clamping parts 31, and two clamping parts 31 can be bolted and be clamped by hollow tube 1; Described outer lining mould 3 also directly can be arranged to the tubular structure suitable with hollow tube 1 profile, is directly inserted by hollow tube 1 during use, but such versatility is bad, can only for specific hollow tube 1 structure.
Three, after the two ends of hollow tube 1 all fix, control bending die 4 and compact heap 5 rotate simultaneously, and rotation direction can abut on the arc groove 42 of bending die 4 with hollow tube 1 and be as the criterion, and then allows hollow tube 1 carry out bending along the arcwall face of arc groove 42.In this step, because hollow tube 1 is abut on the straight-line groove 41 of bending die 4 and arc groove 42 when bending always, its inside material is compressed, material outside is elongated, wrinkle resistant for ensureing medial surface, in the present embodiment, as Fig. 2, shown in Fig. 3, the length direction of the bottom land of described straight-line groove 41 linearly groove 41 is provided with outwardly curved protrusion 43, described curved protrusion 43 extends along the radian direction of arc groove 42 bottom land, thus make suitably to cave in towards lateral direction inside hollow tube 1 in Forging Process, guarantee flexure plane is wrinkle resistant, do not ftracture.Liner mould 2 of the present utility model, outer lining mould 3, be close to the surfaces externally and internally of hollow tube 1 when bending die 4 rotates, be limited in certain space, thus obtain desirable bend pipe surface quality when ensureing that hollow tube 1 rotates be shaped with bending die 4.
Four, after bending die 4 turns to predeterminated position, unclamp compact heap 5, two clamping parts 31 are separated, then take out the hollow tube 1 after bending, finally liner mould 2 is pulled out from hollow tube 1, complete the bending of a hollow tube 1.In this step, pull out from the hollow tube 1 after bending for the ease of liner mould 2, described liner mould 2 is chain structure, and it can bend with hollow tube 1 flexural deformation, and can play the effect of setting off and supporting hollow tube 1 inner surface; Further, one end and a pull bar 6 of described liner mould 2 are hinged, so that staff pulls out from the hollow tube 1 after bending.
In sum, easily there is problem that is wrinkling, cracking in a kind of hollow tube bending tool of the utility model when can solve hollow tube bending.So the utility model effectively overcomes practical problems more of the prior art thus has very high value and use meaning.
Above-mentioned embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.The utility model also has many aspects can improve under the prerequisite of overall thought, all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or change for person skilled in the art scholar.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (5)
1. a hollow tube bending tool, described hollow tube (1) comprises inner chamber, it is characterized in that, described bending tool comprises liner mould (2), outer lining mould (3) and rotating bending die (4);
Described liner mould (2) is bar shaped, and the cross sectional shape of its cross sectional shape and hollow tube (1) inner chamber is suitable;
The edge of described bending die (4) is provided with the straight-line groove (41) and arc groove (42) that connect together, and described straight-line groove (41) coordinates with a compact heap (5) for clamping hollow tube (1);
Described outer lining mould (3) can clamp hollow tube (1) and positioning hollow tube (1) near arc groove (42) side.
2. a kind of hollow tube bending tool according to claim 1, is characterized in that: one end and a pull bar (6) of described liner mould (2) are hinged.
3. a kind of hollow tube bending tool according to claim 1, it is characterized in that: the length direction of the bottom land of described straight-line groove (41) linearly groove (41) is provided with outwardly curved protrusion (43), and described curved protrusion (43) extends along the radian direction of arc groove (42) bottom land.
4. a kind of hollow tube bending tool according to claim 1, is characterized in that: the edge of described bending die (4) is provided with the limited impression (44) of restriction described compact heap (5) position.
5. a kind of hollow tube bending tool according to claim 1, it is characterized in that: described outer lining mould (3) comprises two clamping parts matched (31), by two clamping parts (31) clamping hollow tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520477740.4U CN204817615U (en) | 2015-07-03 | 2015-07-03 | Hollow tubular product bender utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520477740.4U CN204817615U (en) | 2015-07-03 | 2015-07-03 | Hollow tubular product bender utensil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204817615U true CN204817615U (en) | 2015-12-02 |
Family
ID=54675257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520477740.4U Expired - Fee Related CN204817615U (en) | 2015-07-03 | 2015-07-03 | Hollow tubular product bender utensil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204817615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598296A (en) * | 2016-03-21 | 2016-05-25 | 南京大盛汽车部件有限公司 | Bending die of tube bending machine |
| CN108057785A (en) * | 2017-12-26 | 2018-05-22 | 万向通达股份公司 | A kind of cold rolling thin-wall steel tube minor radius bending method and mold |
-
2015
- 2015-07-03 CN CN201520477740.4U patent/CN204817615U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598296A (en) * | 2016-03-21 | 2016-05-25 | 南京大盛汽车部件有限公司 | Bending die of tube bending machine |
| CN108057785A (en) * | 2017-12-26 | 2018-05-22 | 万向通达股份公司 | A kind of cold rolling thin-wall steel tube minor radius bending method and mold |
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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: 20151202 Termination date: 20200703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |