CN101947604B - Pendulum-type bidirectional expanding machine - Google Patents
Pendulum-type bidirectional expanding machine Download PDFInfo
- Publication number
- CN101947604B CN101947604B CN2010102568834A CN201010256883A CN101947604B CN 101947604 B CN101947604 B CN 101947604B CN 2010102568834 A CN2010102568834 A CN 2010102568834A CN 201010256883 A CN201010256883 A CN 201010256883A CN 101947604 B CN101947604 B CN 101947604B
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- expanding machine
- pendulum
- active module
- support bar
- oscillating spindle
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Abstract
The invention relates to a mechanical processing device, in particular to a pendulum-type bidirectional expanding machine for expanding a steel tube. The pendulum-type bidirectional expanding machine is provided with an outer cylinder sleeve; a plurality of guide holes are uniformly formed on a circle surrounding the outer cylinder sleeve; a movable module is arranged in each guide hole; the pendulum-type bidirectional expanding machine is characterized in that: a swinging spindle is arranged in the centre in the outer cylinder sleeve; and at least two parallel support rods and at least one tension spring are arranged between each movable module and the swinging spindle. The pendulum-type expanding machine solves the problems of low efficiency and high energy consumption of the conventional expanding machine and is mainly applied to the production of large-diameter steel tubes for expanding the welded steel tubes.
Description
(1) technical field: the present invention relates to machinery processing apparatus, the two-way expanding machine of especially a kind of pendulum model, the present invention is mainly used in the steel pipe's production; Steel pipe to postwelding carries out hole enlargement; To eliminate distortion, improve dimensional accuracy, improve the glacing flatness of steel pipe; Eliminate residual stress, improve yield strength.
(2) background technology: the hole enlargement of major diameter (more than the 800mm) steel pipe is mainly contained two kinds of hydraulic pressure hole enlargement and machinery expandings because hydraulic pressure hole enlargement efficient is low, energy consumption is high, at present basically need not, mainly at present adopt the mechanical type hole enlargement.In the middle of the mechanical type expanding machine that uses both at home and abroad now is a polygonal prism cone, and there are a plurality of fanlike die blocks the outside.Utilize the hydraulic-driven pyramid, fanlike die block slides on the conical surface relatively.Axial location and radial variations rely on the dilating effect of wedge surface to realize hole enlargement.Because the restriction of hydraulic press driving force, the cone angle of pyramid is smaller usually, about 5 degree.Sizable direct stress is arranged between pyramid and the fanlike die block, though through lubricated, the influence of frictional force is also quite remarkable, thereby causes the hole enlargement head to heat up.In order to prolong the life-span of hole enlargement head, when the hole enlargement head will be lowered the temperature after work a period of time.After a hole enlargement is accomplished, let the counter motion of rib centrum, module is regained, for hole enlargement is next time prepared.Because the existence of frictional force though this process has consumed significant amount of energy, does not have practical value.
(3) summary of the invention: the object of the invention will solve existing expanding machine exactly and have idle work, and efficient is low, and the problem that energy consumption is high provides a kind of pendulum model two-way expanding machine.
Concrete scheme of the present invention is: have an outer jacket casing; Evenly offer a plurality of pilot holes around outer jacket casing one circle; Be mounted with an active module in each pilot hole; It is characterized in that: an oscillating spindle is housed in the jacket casing outside between two parties, between every active module and oscillating spindle, is provided with at least two support bars that are arranged in parallel and at least one extension spring.
Be assurance support bar reliable operation, difficult drop-off, the two ends of support bar described in the present invention are designed to the semi arch head, and on active module and oscillating spindle, the installation position of corresponding support bar offers semi-circular recesses; The support bar two ends place semi-circular recesses corresponding on active module and the oscillating spindle.
The present invention utilizes support bar to be become the purpose that vertically reaches hole enlargement by inclination.In this process, reduced the influence of frictional force greatly to axle power; Support bar length is fixed, and can accurately control enlarging rate; When support bar moves back and forth, all become vertically, thereby realize two-way hole enlargement by inclination.
The present invention is simple in structure, and production efficiency is high, has reduced idle work, has reduced energy consumption.Mainly be applicable to major diameter (more than the 800mm) pipe expanding.
(4) description of drawings:
Fig. 1 is a main cutaway view of the present invention;
Fig. 2 is a right view of the present invention.
Among the figure: the outer jacket casing of 1-, 2-oscillating spindle, 3-active module, 4-support bar, 5-extension spring, 6-groove, 7-pilot hole.
(5) specific embodiment:
Referring to Fig. 1, Fig. 2; The present invention has outer jacket casing 1; Evenly offer 12 pilot holes 7 around outer jacket casing 1 one circles, be mounted with an active module 3 in each pilot hole 7, particularly: an oscillating spindle 2 is housed in the jacket casing 1 outside between two parties; Between every active module 3 and oscillating spindle 2, be provided with two support bars that are arranged in parallel 4 and two extension springs 5 (also can adopt an extension spring or many).
Said support bar 4 two ends are designed to the semi arch head, and on active module 3 and oscillating spindle 2, the installation position of corresponding support bar 4 offers semi-circular recesses 6; Support bar 4 two ends place semi-circular recesses 6 corresponding on active module 3 and the oscillating spindle 2.Promptly constitute the present invention.
Operation principle of the present invention is: outer jacket casing 1 is fixed, will be by the steel pipe socket of hole enlargement jacket casing 1 outside outside.Forcing press pulling oscillating spindle 2 is joined in motion in the pilot hole 7 that active module 3 is opened on the jacket casing 1 outside outward, and oscillating spindle 2 causes support bar 4 to be become vertically by inclination to left movement, and promotion active module 3 expands outwardly, thereby reaches the purpose to pipe expanding.Before oscillating spindle 2 counter motions, steel pipe is advanced a hole enlargement length, when oscillating spindle 2 reverse expansions were moved, this section steel pipe was by hole enlargement.Just in a reciprocating stroke, two sections steel pipes are arranged by hole enlargement, and reciprocating stroke of pyramid-type expanding machine can only expand one section, thereby improve production efficiency.In the work of the present invention, should prevent that support bar 4 from coming off through the reciprocal distance of control oscillating spindle 2.
Claims (1)
1. the two-way expanding machine of pendulum model; Has outer jacket casing; Evenly offer a plurality of pilot holes around outer jacket casing one circle, be mounted with an active module in each pilot hole, it is characterized in that: an oscillating spindle is housed in the jacket casing outside between two parties; Between every active module and oscillating spindle, be provided with at least two support bars that are arranged in parallel and at least one extension spring; Said support bar two ends are designed to the semi arch head, and on active module and oscillating spindle, the installation position of corresponding support bar offers semi-circular recesses; The support bar two ends place semi-circular recesses corresponding on active module and the oscillating spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102568834A CN101947604B (en) | 2010-08-17 | 2010-08-17 | Pendulum-type bidirectional expanding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102568834A CN101947604B (en) | 2010-08-17 | 2010-08-17 | Pendulum-type bidirectional expanding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101947604A CN101947604A (en) | 2011-01-19 |
| CN101947604B true CN101947604B (en) | 2012-02-29 |
Family
ID=43451304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102568834A Expired - Fee Related CN101947604B (en) | 2010-08-17 | 2010-08-17 | Pendulum-type bidirectional expanding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101947604B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153298B (en) * | 2019-06-27 | 2024-06-11 | 豪德博尔(山东)智能装备有限公司 | Automatic forming production line for steel pipe faucet |
| CN110369623B (en) * | 2019-07-02 | 2024-03-22 | 安徽省重望精密机械制造有限公司 | Horizontal shrimp elbow machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033247A (en) * | 1987-11-21 | 1989-06-07 | 陈锡涛 | Hydraulic bidirectional self-locking seal-type pipe expander |
| US6918277B2 (en) * | 2001-04-19 | 2005-07-19 | Toyo Tire & Rubber Co., Ltd. | Method of working end part of metallic tube body and metallic tube body, and method of manufacturing vibrationproof bush using the working method and vibrationproof bush |
| JP3933645B2 (en) * | 2004-04-27 | 2007-06-20 | 株式会社神戸製鋼所 | Flanged shaft member |
| KR100715892B1 (en) * | 2006-03-28 | 2007-05-08 | 삼성광주전자 주식회사 | A pipe expanding device |
| CN201768844U (en) * | 2010-08-17 | 2011-03-23 | 湖北三环锻压设备有限公司 | Pendulum-type bidirectional expander |
-
2010
- 2010-08-17 CN CN2010102568834A patent/CN101947604B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101947604A (en) | 2011-01-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20120229 Termination date: 20170817 |