CN105170742B - Anti-deformation bent pipe tooling - Google Patents
Anti-deformation bent pipe tooling Download PDFInfo
- Publication number
- CN105170742B CN105170742B CN201510475611.6A CN201510475611A CN105170742B CN 105170742 B CN105170742 B CN 105170742B CN 201510475611 A CN201510475611 A CN 201510475611A CN 105170742 B CN105170742 B CN 105170742B
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- hole
- mandrel
- collet
- epimere
- hypomere
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- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention relates to pipe fitting bending processing technology field, more particularly to a kind of anti-deformation bent pipe tooling, including mandrel and the collet for being sleeved on mandrel exterior, the through hole of collet is divided into through hole epimere, through hole stage casing and through hole hypomere, through hole epimere is in smooth back taper, through hole stage casing is in smooth cylinder, through hole hypomere is in the female cylinder of tool, longitudinal vertical slot is offered along the upper surface of the upper semisection of collet, the lower semisection of collet laterally offers circular hole, vertical slot extends to circular hole, and vertical slot bottom is connected with circular hole, mandrel is divided into mandrel epimere, mandrel stage casing and mandrel hypomere, mandrel epimere is in smooth back taper, mandrel hypomere has the external screw thread being engaged with through hole hypomere.The anti-deformation bent pipe tooling of the present invention, can prevent the straightway section being connected during bend pipe with crooked position to be distorted, and reach and improve product quality, enhancing product performance and the effect for ensureing security.
Description
Technical field
The present invention relates to pipe fitting bending processing technology field, more particularly to a kind of anti-deformation bent pipe tooling.
Background technology
At present, pipe bending technique is widely used in multiple industries such as high ferro, automobile, Aero-Space, shipbuilding, product matter
The quality of amount directly affects it and uses the installation of process, safety.The circular arc position that tubing is bent in BENDING PROCESS can gradually become
It is flat, need to carry very big deformation force on crooked position inwall in tubing, be easily caused tubing need it is straight near bending section
Line segment section is distorted.At present for such issues that, solved without effective measures.
The content of the invention
The technical problem to be solved in the present invention is：In order to solve the straight line being connected on tubing in the prior art with crooked position
The technical problem that section section easily deforms, the present invention provides a kind of anti-deformation bent pipe tooling.
The technical solution adopted for the present invention to solve the technical problems is：A kind of anti-deformation bent pipe tooling, including mandrel and
The collet of mandrel exterior is sleeved on, the outer shape of the collet is substantially cylindrical, inside has and mandrel
The through hole that profile is engaged, the through hole of the collet is divided into through hole epimere, through hole stage casing and through hole hypomere, and through hole epimere is in
Smooth back taper, through hole stage casing is in smooth cylinder, and through hole hypomere is in having female cylinder, along the elastic clip
The upper surface of the upper semisection of head offers longitudinal vertical slot, and the lower semisection of the collet laterally offers circular hole, and vertical slot prolongs
Circular hole is extended, and vertical slot bottom is connected with circular hole, the mandrel is divided into mandrel epimere, mandrel stage casing and mandrel hypomere, described
Mandrel epimere is in smooth back taper, and mandrel stage casing is engaged with through hole stage casing in smooth cylinder, mandrel hypomere with
The external screw thread that through hole hypomere is engaged, the maximum gauge of the non-softened state lower through-hole epimere of collet is on D1, mandrel
The maximum outside diameter of section is d, and d is slightly larger than D1, and D1 is slightly less than the internal diameter of pipe fitting to be bent.The present invention passes through mandrel and collet
The frock of cooperation, support needs the position of bending in tubing, effectively prevent the straightway section being connected on tubing with crooked position
The problem of easily deforming.
Further, specifically, the maximum gauge of the non-softened state lower through-hole epimere of the collet is D1, minimum diameter
For D2, D2 is 4/5 D1.
Further, specifically, the axis of the circular hole and the central axis of collet are perpendicular.
Further, specifically, the upper semisection external diameter of the collet makes slightly larger than the external diameter of the lower semisection of collet
Obtain and form step between the upper semisection of collet and the lower semisection of collet.
Further, specifically, the center of the vertical slot and the center of circular hole be on the same line.
Further, specifically, preferably, the upper semisection of the collet is evenly equipped with 4 vertical slots, the collet
Lower semisection on be evenly equipped with 4 corresponding circular holes.
For the ease of rotary core shaft, preferably, the upper surface of the mandrel is additionally provided with the montant of integrative-structure.
In order to prevent skidding in rotary core shaft, preferably, the outer ring of the montant is provided with the hexagonal spiral shell of integrative-structure
It is female.
The beneficial effects of the invention are as follows, anti-deformation bent pipe tooling of the invention, can prevent during bend pipe with crooked position
Connected straightway section is distorted, and is reached and is improved product quality, enhancing product performance and the effect for ensureing security.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the top view of the collet of the present invention.
Fig. 2 is Fig. 1 A-A sectional views.
Fig. 3 is the structural representation of the mandrel of the present invention.
Fig. 4 is the use structural representation of anti-deformation bent pipe tooling of the present invention.
In figure：1st, collet, 11, through hole epimere, 12, through hole stage casing, 13, through hole hypomere, 14, vertical slot, 15, circular hole,
16th, step, 2, mandrel, 21, mandrel epimere, 22, mandrel stage casing, 23, mandrel stage casing, 25, montant, 26, hex nut, 3, to be curved
Curved tube part.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
As Figure 1-4, it is optimum embodiment of the present invention, a kind of anti-deformation bent pipe tooling, including mandrel 2 and it is sleeved on core
Collet 1 outside axle 2, the outer shape of collet 1 is substantially cylindrical, and the upper semisection external diameter of collet 1 is bigger
In the external diameter of the lower semisection of collet 1 so that form platform between the upper semisection of collet 1 and the lower semisection of collet 1
Rank 16, the inside of collet 1 has the through hole being engaged with the profile of mandrel 2,
The through hole of collet 1 is divided into through hole epimere 11, through hole stage casing 12 and through hole hypomere 13, and through hole epimere 11 is in smooth
Back taper, through hole stage casing 12 is in smooth cylinder, and through hole hypomere 13 is in having female cylinder, along collet 1
The upper surface of upper semisection open up longitudinal vertical slots 14 of 4 circumference uniform distributions, the lower semisection of collet 1 laterally offers 4
15,4 vertical slots 14 of circular hole are corresponded with 4 circular holes 15, and the center of the center of each vertical slot 14 and corresponding circular hole 15 is same
On straight line, each vertical slot 14 extends downward into corresponding circular hole 15, and the bottom of vertical slot 14 is connected with corresponding circular hole 15, circular hole
The central axis of 15 axis and collet 1 is perpendicular.
2 points of mandrel is the entity structure of mandrel epimere 21, mandrel stage casing 22 and mandrel hypomere 23, and mandrel epimere 21 is in smooth
Back taper, mandrel stage casing 22 is engaged with through hole stage casing 12 in smooth cylinder, and mandrel hypomere 23 has and through hole hypomere
13 external screw threads being engaged,
The maximum gauge of the non-softened state lower through-hole epimere 11 of collet 1 is D1, and the maximum outside diameter of mandrel epimere 21 is d
(i.e. the external diameter of the top of mandrel epimere 21), d is slightly larger than D1, and D1 is slightly less than the internal diameter of pipe fitting 3 to be bent.
The maximum gauge (i.e. the diameter of the top of through hole epimere 11) of the non-softened state lower through-hole epimere 11 of collet 1
For D1, minimum diameter (diameter of the bottom of through hole epimere 11) is D2, and D2 is 4/5 D1.
The upper surface of mandrel 2 is additionally provided with the montant 25 of integrative-structure, and the outer ring of montant 25 is provided with the hexagonal spiral shell of integrative-structure
Mother 26.
The appearance of mandrel 2 is engaged with the inside of collet 1, and the pine coordinated by the threaded connection of bottom, screw thread
The external diameter size of the tight control upper port of collet 1.To be loosening between collet 1 and the screw thread of mandrel 2 before bending pipe fitting
Coordinate, the conical outer wall of mandrel 2 is not contacted with the conical inboard wall of collet 1, it is ensured that collet 1 is non-softened state,
And the entirety for constituting collet 1 and mandrel 2 is put into the straightway position for needing to bend in pipe, then tightens screw thread, with
Screw thread is tightened between collet 1 and mandrel 2, and the conical outer wall of mandrel 2 is fitted with the conical inboard wall of collet 1, and support
The upper semisection of collet 1 is opened, the upper semisection external diameter for making out collet 1 increases that (wherein the external diameter of the upper port of collet 1 is most
Greatly), and with the pipe fitting inner wall that need to bend it is brought into close contact, the generally rigid structure that now collet 1 and mandrel 2 are constituted, so
Pipe fitting bending operation is carried out afterwards, after pipe fitting bending terminates, screw thread between collet 1 and mandrel 2 is unscrewed, with the rotation of screw thread
Pine, the conical inboard wall of the conical outer wall and collet 1 of mandrel 2 is gradually disengaged by fitting to, the upper semisection external diameter of collet 1
Original non-softened state will be recovered, the entirety that now collet 1 and mandrel 2 are constituted can be extracted out smoothly out of pipe.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (8)
1. a kind of anti-deformation bent pipe tooling, it is characterised in that：Including mandrel（2）Be sleeved on mandrel（2）Outside collet
（1）, the collet（1）Outer shape it is substantially cylindrical, inside has and mandrel（2）Profile be engaged it is logical
Hole,
The collet（1）Through hole be divided into through hole epimere（11）, through hole stage casing（12）With through hole hypomere（13）, through hole epimere
（11）In smooth back taper, through hole stage casing（12）In smooth cylinder, through hole hypomere（13）In the female cylinder of tool
Shape, along the collet（1）The upper surface of upper semisection offer longitudinal vertical slot（14）, the collet（1）Under
Half section of transverse direction offers circular hole（15）, vertical slot（14）Extend to circular hole（15）, and vertical slot（14）Bottom and circular hole（15）It is connected,
The mandrel（2）It is divided into mandrel epimere（21）, mandrel stage casing（22）With mandrel hypomere（23）, the mandrel epimere（21）It is in
Smooth back taper, mandrel stage casing（22）With through hole stage casing（12）It is engaged in smooth cylinder, mandrel hypomere（23）Have
With through hole hypomere（13）The external screw thread being engaged,
The collet（1）Non- softened state lower through-hole epimere（11）Maximum gauge be D1, mandrel epimere（21）Maximum
External diameter is d, and d is slightly larger than D1, and D1 is slightly less than pipe fitting to be bent（3）Internal diameter.
2. anti-deformation bent pipe tooling as claimed in claim 1, it is characterised in that：The collet（1）Under non-softened state
Through hole epimere（11）Maximum gauge be D1, minimum diameter is D2, and D2 is 4/5 D1.
3. anti-deformation bent pipe tooling as claimed in claim 1, it is characterised in that：The circular hole（15）Axis and collet
（1）Central axis it is perpendicular.
4. anti-deformation bent pipe tooling as claimed in claim 1, it is characterised in that：The collet（1）Upper semisection external diameter
Slightly larger than collet（1）Lower semisection external diameter so that collet（1）Upper semisection and collet（1）Lower semisection
Between form step（16）.
5. anti-deformation bent pipe tooling as claimed in claim 1, it is characterised in that：The vertical slot（14）Center and circular hole（15）
Center on the same line.
6. anti-deformation bent pipe tooling as claimed in claim 5, it is characterised in that：The collet（1）Upper semisection it is uniform
There are 4 vertical slots（14）, the collet（1）Lower semisection on be evenly equipped with 4 corresponding circular holes（15）.
7. anti-deformation bent pipe tooling as claimed in claim 1, it is characterised in that：The mandrel（2）Upper surface be additionally provided with one
The montant of body structure（25）.
8. anti-deformation bent pipe tooling as claimed in claim 7, it is characterised in that：The montant（25）Outer ring provided with one tie
The hex nut of structure（26）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510475611.6A CN105170742B (en) | 2015-08-05 | 2015-08-05 | Anti-deformation bent pipe tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510475611.6A CN105170742B (en) | 2015-08-05 | 2015-08-05 | Anti-deformation bent pipe tooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105170742A CN105170742A (en) | 2015-12-23 |
| CN105170742B true CN105170742B (en) | 2017-08-29 |
Family
ID=54893428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510475611.6A Active CN105170742B (en) | 2015-08-05 | 2015-08-05 | Anti-deformation bent pipe tooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105170742B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918986B (en) * | 2019-12-17 | 2021-12-10 | 中国工程物理研究院材料研究所 | Sintering tool clamp for special-model spray pipe products |
Citations (7)
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|---|---|---|---|---|
| EP2113674A1 (en) * | 2008-05-01 | 2009-11-04 | Fuko Inc | Expandable device for a telescopic rod |
| GB2472656A (en) * | 2009-03-30 | 2011-02-16 | John Cubbison | Plug for scaffolding tubes |
| CN202346817U (en) * | 2011-11-22 | 2012-07-25 | 杨少鹏 | Water purifying and sterilizing machine for epidemic prevention |
| DE202012104513U1 (en) * | 2012-11-21 | 2012-12-04 | Jun Fan Chen | Rohraufweitgerät |
| CN202667469U (en) * | 2012-07-10 | 2013-01-16 | 常州腾龙汽车零部件股份有限公司 | Device for quickly expanding pipe cavities |
| CN203649059U (en) * | 2013-12-24 | 2014-06-18 | 广州永大不锈钢有限公司 | Stainless steel round tube reshaping device |
| CN204934276U (en) * | 2015-08-05 | 2016-01-06 | 中铁建电气化局集团轨道交通器材有限公司 | Anti-deformation bent pipe tooling |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11182752A (en) * | 1997-12-24 | 1999-07-06 | Tokyo Gas Co Ltd | Pipe threading auxiliary tool |
| KR20050035773A (en) * | 2003-10-14 | 2005-04-19 | 재성산업주식회사 | Apparatus for enlarging inside diameter of pipe end |
-
2015
- 2015-08-05 CN CN201510475611.6A patent/CN105170742B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2113674A1 (en) * | 2008-05-01 | 2009-11-04 | Fuko Inc | Expandable device for a telescopic rod |
| GB2472656A (en) * | 2009-03-30 | 2011-02-16 | John Cubbison | Plug for scaffolding tubes |
| CN202346817U (en) * | 2011-11-22 | 2012-07-25 | 杨少鹏 | Water purifying and sterilizing machine for epidemic prevention |
| CN202667469U (en) * | 2012-07-10 | 2013-01-16 | 常州腾龙汽车零部件股份有限公司 | Device for quickly expanding pipe cavities |
| DE202012104513U1 (en) * | 2012-11-21 | 2012-12-04 | Jun Fan Chen | Rohraufweitgerät |
| CN203649059U (en) * | 2013-12-24 | 2014-06-18 | 广州永大不锈钢有限公司 | Stainless steel round tube reshaping device |
| CN204934276U (en) * | 2015-08-05 | 2016-01-06 | 中铁建电气化局集团轨道交通器材有限公司 | Anti-deformation bent pipe tooling |
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| Publication number | Publication date |
|---|---|
| CN105170742A (en) | 2015-12-23 |
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