CN104096733A - Bending and forming device - Google Patents
Bending and forming device Download PDFInfo
- Publication number
- CN104096733A CN104096733A CN201310115568.3A CN201310115568A CN104096733A CN 104096733 A CN104096733 A CN 104096733A CN 201310115568 A CN201310115568 A CN 201310115568A CN 104096733 A CN104096733 A CN 104096733A
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- ball
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- molding apparatus
- connecting shaft
- bending
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Abstract
The invention provides a bending and forming device, and relates to the field of a forming technology which is special for high-accuracy bending of large-diameter pipes. The bending and forming device comprises ball sleeves, a ball connecting shaft, a ball, a first ball connecting shaft, second ball connecting shafts and a connecting shaft, wherein the ball connecting shaft is arranged in inner holes of the ball sleeves, the ball is located at the front side of the bending and forming device, the first ball connecting shaft is connected with the ball through threads and is connected with one second ball connecting shaft through a ball body at the front part of the first ball connecting shaft, the rear part of each second ball connecting shaft is connected with the ball connecting shaft, threads at the front part of each second ball connecting shaft are connected with the connecting shaft, inner threads at the rear part of the connecting shaft are connected with the second ball connecting shafts, and outer threads at the front part of the connecting shaft are connected with a power device. According to the bending and forming device provided by the invention, the technical problem is solved; compared with the prior art, the manufacturing accuracy is high, the efficiency is good, the structure is reasonable, the installation and the maintenance are simple and convenient, and the operation is simple.
Description
Technical field
The present invention relates to the field shaping technique of specialty for the bending of big-inch pipe high accuracy, particularly relate to a kind of bend molding apparatus.
Background technology
Domestic tube bending is substantially all as power by hydraulic pressure now, ensure bending shape with mould, but the pipe deformation that any method is brought all cannot solve bending time, wherein most important distortion is exactly the ovality of pipe, as circular arc place becomes flat, wrinkling etc. inside circular arc.Because pipe is empty, in the time being subject to the extruding (as bending) of external force, extruding place is due to bending radius of curvature difference, the axis place of pipe does not stress, the outside of pipe is subject to pulling force, the inner side of the pipe power that is squeezed, the deflection of the each point at tube bending place is different, round and smooth for preventing the pipe transition in knee, ovality is little, generally all will be toward pipe the inside packing in the time of tube bending, present prevailing filler is sand (gaza's submethod has two defects: 1 is more time-consuming, and the later pipe precision of 2 processing is not too high).Also have and in pipe, add zinc bar or flexible axle.Method as above in the pipe of wanting machining high-precision is all difficult to reach, or processing cost is very high.
Therefore, instantly need the urgent technical problem solving to be exactly: a kind of effective measures of proposition how can innovate, to meet the demand of practical application.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of bend molding apparatus, and the deficiency existing for prior art provides that a kind of accuracy of manufacture is high, excellent in efficiency, the device that rational in infrastructure, installation and maintenance are simple and convenient, simple to operate.
In order to address the above problem, the invention discloses a kind of bend molding apparatus, comprise ball cover, ball spindle, ball, the first ball spindle, the second ball spindle and spindle, wherein, the endoporus of described ball cover is installed ball spindle, described ball be positioned at bend molding apparatus before, be connected with the first ball spindle by screw thread, described the first ball spindle is connected with ball by screw thread, be connected with the second ball spindle by anterior spheroid, described the second ball spindle rear portion is connected with ball spindle, anterior threaded portion is connected with spindle, the internal thread at described spindle rear portion is connected with the second ball spindle, anterior external screw thread is connected with power set.
Further, described ball cover outside is oval-shaped spherical, and sphere diameter is less than the internal diameter of bending pipe.
Further, described ball cover is the ball cover that special material SKD-11, heat treatment HRC58-62, surperficial TD process.
Further, described ball spindle comprises slice and lower, upper slice and by circle center one concavo-convex of the connection of lower and location realize.
Further, described upper slice and the connecting bushing that adopts of the connection of lower in spheroid inside, groove is placed axle card.
Further, described the second ball spindle has 30.
Further, described ball cover has 31.
To sum up, scheme provided by the invention, easy to use, with low cost, bending effect is good and can reuse, installation and debugging are simple, and efficiency is high, greatly facilitates large-scale popularization.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of bend molding apparatus of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and example, the present invention is described in further detail.But example is not as a limitation of the invention.
Referring to Fig. 1, scheme provides a kind of bend molding apparatus, comprise ball cover 1, ball spindle 2, ball 3, the first ball spindle 4, the second ball spindle 5 and spindle 6, wherein, the endoporus of described ball cover is installed ball spindle, described ball be positioned at bend molding apparatus before, be connected with the first ball spindle by screw thread, described the first ball spindle is connected with ball by screw thread, be connected with the second ball spindle by anterior spheroid, described the second ball spindle rear portion is connected with ball spindle, anterior threaded portion is connected with spindle, the internal thread at described spindle rear portion is connected with the second ball spindle, anterior external screw thread is connected with power set.
Concrete:
Ball cover, outside is the spheroid of an approximate ellipsoidal, sphere diameter is more smaller than the internal diameter of bending pipe, for ensureing good wearability, selects special material SKD-11, heat treatment HRC58-62, surperficial TD processes.The hole of the inside is used for installing ball spindle.
Ball spindle, is made up of two parts, go up slice and lower, upper slice and the connection of lower and location by concavo-convex a realization at circle center, the object that is divided into upper and lower two is exactly for easy for installation, if not separated bending and forming die is can not connect.Connecting axle is to be enclosed within spheroid inside, and groove is placed axle card in case axial float.
Ball, in the foremost of bend molding apparatus, is connected with the first ball spindle by screw thread.
Ball spindle-1, is also the first ball spindle, is connected with ball by screw thread, is connected with the second ball spindle by anterior spheroid.
Ball spindle-2, are also the second ball spindle, and structure and ball spindle are slightly same, and rear portion is connected with ball spindle, and threaded portion is above connected with spindle.
Spindle, the internal thread at rear portion is connected with the second ball spindle, and external screw thread is above connected with power set.
More detailed, whole bending and forming die is by a ball, a first ball spindle, 30 the second ball spindles, a ball spindle, 31 ball covers, a spindle composition, erection sequence, the internal thread at ball rear portion is connected with the external screw thread of the first ball spindle front portion, the spheroid at the first ball spindle rear portion is combined with the Internal Spherical Surface of the second ball spindle front portion, the endoporus of ball cover is installed the second ball spindle, and fasten with axle, the spheroid at the second ball spindle rear portion is combined with the Internal Spherical Surface of another one the second ball spindle front portion, the endoporus of ball cover is installed the second ball spindle, and fasten with axle, so continuous installation 30 is overlapped, the spheroid at the second ball spindle rear portion is combined with the Internal Spherical Surface of ball spindle front portion, the endoporus of ball cover is installed ball spindle, and fasten with axle, the external screw thread of ball spindle front portion is connected with the internal thread at spindle rear portion, the anterior external screw thread of spindle is connected with power set, be generally hydraulic means.
Below the operation principle of the bend molding apparatus described in this programme is done to concise and to the point introduction, bending and forming die is placed on tube interior, the diameter of ball cover is almost consistent with the internal diameter of pipe, and material is hard, surface smoothness is high, very easily form relative motion with the inside of pipe, in the time of pipe deformation, while becoming flat as circular arc place, the outer surface of ball cover props up pipe, makes it indeformable, while is along with the bending of pipe, between ball spindle and ball spindle, owing to being that sphere is connected, can keep Universal rotary, whole bending and forming die follows pipe bending together.Until bending completes, by external force (being generally hydraulic pressure), bending and forming die is elongated from bending pipe.
Above bend molding apparatus provided by the present invention is described in detail, applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (7)
1. a bend molding apparatus, comprise ball cover, ball spindle, ball, the first ball spindle, the second ball spindle and spindle, wherein, the endoporus of described ball cover is installed ball spindle, described ball be positioned at bend molding apparatus before, be connected with the first ball spindle by screw thread, described the first ball spindle is connected with ball by screw thread, be connected with the second ball spindle by anterior spheroid, described the second ball spindle rear portion is connected with ball spindle, anterior threaded portion is connected with spindle, and the internal thread at described spindle rear portion is connected with the second ball spindle, and anterior external screw thread is connected with power set.
2. bend molding apparatus as claimed in claim 1, is characterized in that, described ball cover outside is oval-shaped spherical, and sphere diameter is less than the internal diameter of bending pipe.
3. bend molding apparatus as claimed in claim 1, is characterized in that, described ball cover is the ball cover that special material SKD-11, heat treatment HRC58-62, surperficial TD process.
4. bend molding apparatus as claimed in claim 1, is characterized in that, described ball spindle comprises slice and lower, upper slice and by circle center one concavo-convex of the connection of lower and location realize.
5. bend molding apparatus as claimed in claim 4, is characterized in that, described upper slice and the connecting bushing that adopts of the connection of lower in spheroid inside, groove is placed axle card.
6. bend molding apparatus as claimed in claim 1, is characterized in that, described the second ball spindle has 30.
7. bend molding apparatus as claimed in claim 1, is characterized in that, described ball cover has 31.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115568.3A CN104096733A (en) | 2013-04-03 | 2013-04-03 | Bending and forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115568.3A CN104096733A (en) | 2013-04-03 | 2013-04-03 | Bending and forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104096733A true CN104096733A (en) | 2014-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310115568.3A Pending CN104096733A (en) | 2013-04-03 | 2013-04-03 | Bending and forming device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104096733A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296330A (en) * | 2018-01-18 | 2018-07-20 | 浙江大学 | A kind of diameter adjustable core clavus and mandrel structure for thin-wall pipe bending forming |
| US11440071B2 (en) * | 2019-05-10 | 2022-09-13 | Ludwig Weber GmbH | Device for bending hollow structural components |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3190106A (en) * | 1961-12-22 | 1965-06-22 | H & H Engineering Company | Tube bending mandrel |
| US3286503A (en) * | 1964-01-27 | 1966-11-22 | James L Garrett | Method of bending tubing and mandrel component thereof |
| FR2417351A1 (en) * | 1978-02-20 | 1979-09-14 | Belliot Jacques | Flexible mandrel located inside metal pipes being bent - consists of row of hinged mandrel segments which can assume curvature of pipe |
| US4542637A (en) * | 1983-11-21 | 1985-09-24 | Bending Products, Inc. | Tube bending mandrel |
| FR2720015A1 (en) * | 1994-05-17 | 1995-11-24 | Paul Jestin | Chuck for bending tubes |
| JP2001232421A (en) * | 2000-02-21 | 2001-08-28 | Toyota Motor Corp | Mandrel for tube bender |
| CN101758126A (en) * | 2009-12-24 | 2010-06-30 | 成都飞机工业（集团）有限责任公司 | Numeric control bending core mould of thin-wall tube with large diameter |
| CN202427777U (en) * | 2012-01-12 | 2012-09-12 | 长治市泽洋锻压机械有限公司 | Core shaft of pipe bender |
| CN203209498U (en) * | 2013-04-03 | 2013-09-25 | 浙江炜驰机械集团有限公司 | Bending forming device |
-
2013
- 2013-04-03 CN CN201310115568.3A patent/CN104096733A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3190106A (en) * | 1961-12-22 | 1965-06-22 | H & H Engineering Company | Tube bending mandrel |
| US3286503A (en) * | 1964-01-27 | 1966-11-22 | James L Garrett | Method of bending tubing and mandrel component thereof |
| FR2417351A1 (en) * | 1978-02-20 | 1979-09-14 | Belliot Jacques | Flexible mandrel located inside metal pipes being bent - consists of row of hinged mandrel segments which can assume curvature of pipe |
| US4542637A (en) * | 1983-11-21 | 1985-09-24 | Bending Products, Inc. | Tube bending mandrel |
| FR2720015A1 (en) * | 1994-05-17 | 1995-11-24 | Paul Jestin | Chuck for bending tubes |
| JP2001232421A (en) * | 2000-02-21 | 2001-08-28 | Toyota Motor Corp | Mandrel for tube bender |
| CN101758126A (en) * | 2009-12-24 | 2010-06-30 | 成都飞机工业（集团）有限责任公司 | Numeric control bending core mould of thin-wall tube with large diameter |
| CN202427777U (en) * | 2012-01-12 | 2012-09-12 | 长治市泽洋锻压机械有限公司 | Core shaft of pipe bender |
| CN203209498U (en) * | 2013-04-03 | 2013-09-25 | 浙江炜驰机械集团有限公司 | Bending forming device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296330A (en) * | 2018-01-18 | 2018-07-20 | 浙江大学 | A kind of diameter adjustable core clavus and mandrel structure for thin-wall pipe bending forming |
| US11440071B2 (en) * | 2019-05-10 | 2022-09-13 | Ludwig Weber GmbH | Device for bending hollow structural components |
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Application publication date: 20141015 |