CN102513464B - Open three-point centering mechanism - Google Patents
Open three-point centering mechanism Download PDFInfo
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- CN102513464B CN102513464B CN 201210003799 CN201210003799A CN102513464B CN 102513464 B CN102513464 B CN 102513464B CN 201210003799 CN201210003799 CN 201210003799 CN 201210003799 A CN201210003799 A CN 201210003799A CN 102513464 B CN102513464 B CN 102513464B
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- hinged
- installing plate
- installation shaft
- connecting rod
- rotating
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Abstract
The invention relates to an open three-point centering mechanism. A rotating shaft is arranged in a connecting support in a rotating manner, the rotating shaft is fixed with a rotating support, the rotating support is fixed with an adhesion wheel support, a first rotating wheel is erected on a first mounting plate, a second rotating wheel is erected on a second mounting plate, a third rotating wheel is erected on a third mounting plate, the first mounting plate is hinged with a first connecting rod, the second mounting plate is hinged with a second connecting rod, the other end part of the first connecting rod and the other end part of the second connecting rod are all hinged on a third mounting shaft, and the adhesion wheel support is provided with a lifting driving component of the third mounting shaft. In the invention, one hydraulic cylinder is used for driving three adhesion centering wheels to move, circle centers of the three centering wheels are effectively ensured to be always located on concentric circles which have the circle centers on the same point and have different diameters, and centering function on pipes with different diameters can be realized.
Description
Technical field
The present invention relates to a kind of part of appliance of ultralong thin walled pipe fitting cnc spinning machine, especially a kind of open three-point centering mechanism.
Background technology
Ultralong thin walled pipe fitting is in the process of mould pressing Taper Pipe or special pipe, in the distant place of the distance pipe fitting strong point, deficiency due to thin-wall pipe self rigidity, pipe fitting is when doing high speed rotary motion, pipe fitting can produce very large vibration, and excessive vibration can cause the interruption of ultralong thin walled pipe fitting spinning process, and can't complete whole processing technology.Open three-point centering mechanism is exactly the mechanism that develops for head it off.
The centering machine of present pipe fitting or cone or shaped piece is all from the axial feed of workpiece and realize auxiliary centering, and can not relatively move between workpiece and centering machine after Centering Clamping.And for the auxiliary centering of overlength (more than 8 meters) thin-wall pipe in spinning process, existing centering machine just can't be completed its requirement.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of when reducing pipe fitting vibration and can not shut down and affect the open three-point centering mechanism of other moving components operations.
according to technical scheme provided by the invention, described open three-point centering mechanism, be rotatablely equipped with rotating shaft in connection bracket, be fixed with runing rest on rotating shaft, be fixed with the adhering wheel support on runing rest, the first installation shaft and the second installation shaft are installed in the adhering wheel support, be hinged with the first installing plate and the second installing plate on the first installation shaft, be hinged with the 3rd installing plate on the second installation shaft, rotating turret is provided with the first swiveling wheel on the first installing plate, rotating turret is provided with the second swiveling wheel on the second installing plate, rotating turret is provided with the 3rd swiveling wheel on the 3rd installing plate, be hinged with first connecting rod on the first installing plate, be hinged with second connecting rod on the second installing plate, the other end of first connecting rod and the other end of second connecting rod all are hinged on the 3rd installation shaft, the axis of the axis of the first installation shaft and the second installation shaft is set in parallel, the axis of the axis of the second installation shaft and the 3rd installation shaft is set in parallel, be provided with the lifting driver part of the 3rd installation shaft on the adhering wheel support, one end and second installing plate of third connecting rod are hinged, the other end of third connecting rod and the 3rd installing plate are hinged.
The driving hydraulic cylinder is installed on the adhering wheel support, and the piston rod and described the 3rd installation shaft that drive hydraulic cylinder are hinged.
The present invention has following advantage: at first, rotate radially mode of entrance owing to having adopted, can guarantee like this nothing pause in the high speed spinning process of ultralong thin walled shaped piece, guarantee the continuity of machining process, thereby guarantee the validity that workpiece is completed; Secondly, adopts three of a Driven by Hydraulic Cylinder to adhere to the motion of centering wheel, effectively guaranteed to realize that the pipe fitting of different-diameter specification is realized centering function on the concentric circles of the center of circle that three centering the are taken turns different-diameter that to be in same point be the center of circle always; The 3rd, adopt the way of contact of relatively rolling between centering wheel and workpiece, can effectively avoid surface of the work to produce sliding injury or other defect, and do not affect workpiece spindle to freely extend; The 4th, owing to having adopted centering swiveling wheel automatic regulating apparatus, the centering wheel can axially adjusted direction, and this can realize the centering of taper or various special pipes, and this has greatly expanded the range of application of open three-point centering mechanism.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is use state diagram of the present invention.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
as shown in the figure: this open three-point centering mechanism, be rotatablely equipped with rotating shaft 6 in connection bracket 7, be fixed with runing rest 9 on rotating shaft 6, be fixed with adhering wheel support 2 on runing rest 9, the first installation shaft 11 and the second installation shaft 12 are installed in adhering wheel support 2, be hinged with the first installing plate 14 and the second installing plate 15 on the first installation shaft 11, be hinged with the 3rd installing plate 16 on the second installation shaft 12, rotating turret is provided with the first swiveling wheel 3 on the first installing plate 14, rotating turret is provided with the second swiveling wheel 4 on the second installing plate 15, rotating turret is provided with the 3rd swiveling wheel 5 on the 3rd installing plate 16, be hinged with first connecting rod 17 on the first installing plate 14, be hinged with second connecting rod 18 on the second installing plate 15, the other end of the other end of first connecting rod 17 and second connecting rod 18 all is hinged on the 3rd installation shaft 13, the axis of the axis of the first installation shaft 11 and the second installation shaft 12 is set in parallel, the axis of the axis of the second installation shaft 12 and the 3rd installation shaft 13 is set in parallel, be provided with the lifting driver part of the 3rd installation shaft 13 on adhering wheel support 2, one end of third connecting rod 19 and the second installing plate 15 are hinged, the other end of third connecting rod 19 and the 3rd installing plate 16 are hinged.Be equipped with on adhering wheel support 2 and drive hydraulic cylinder 1, the piston rod and described the 3rd installation shaft 13 that drive hydraulic cylinder 1 are hinged.
Ultralong thin walled pipe fitting 10 can not have break in the rotary pressing processing process, former thereby cause the rotary pressing processing process to be interrupted if there is some, causes scrapping of workpiece.whole open three-point centering mechanism relies on connection bracket 7 to be connected on bed piece or fixes in place by other means, when ultralong thin walled pipe fitting 10 is worked into certain position, rotational hydraulic cylinder 8 promotes rotating shaft 6 half-twists, rotating shaft 6 drives and drives hydraulic cylinder 1, adhering wheel support 2, the first swiveling wheel 3, the second swiveling wheel 4, the 3rd swiveling wheel 5, 90 ° of runing rest 9 synchronous rotaries, the first swiveling wheel 3, a circle that home position is constant can be determined in the center of circle of the second swiveling wheel 4 and 5 three swiveling wheels of the 3rd swiveling wheel, the centre of gyration of this home position and ultralong thin walled pipe fitting 10 overlaps.After rotating shaft 6 is rotated in place, drive hydraulic cylinder 1 and begin action, promote simultaneously the first swiveling wheel 3, the second swiveling wheel 4 is synchronizeed to the centre of gyration of ultralong thin walled pipe fitting 10 close with the 3rd swiveling wheel 5, the bus of the first swiveling wheel 3, the second swiveling wheel 4, the 3rd swiveling wheel 5 and the bus of ultralong thin walled pipe fitting 10 contact simultaneously, apply suitable active force by driving hydraulic cylinder 1, the first swiveling wheel 3, the second swiveling wheel 4 and the 3rd swiveling wheel 5 just play certralizing ability to ultralong thin walled pipe fitting 10.When ultralong thin walled pipe fitting 10 rotary pressing processing are completed or are needed centring means to leave, at first, drive hydraulic cylinder 1 action, drive the first swiveling wheel 3, the second swiveling wheel 4 and synchronize the outer surface that leaves ultralong thin walled pipe fitting 10 with the 3rd 5 whiles of swiveling wheel; Second step, after the first swiveling wheel 3, the second swiveling wheel 4 and the 3rd swiveling wheel 5 arrive assigned address, rotational hydraulic cylinder 8 begins action, drives driving hydraulic cylinder 1, adhering wheel support 2, the first swiveling wheel 3, the second swiveling wheel 4 and the 3rd swiveling wheel 5 by rotating shaft 6 and arrives its home position with 9 while of runing rest half-twist.
Claims (2)
1. open three-point centering mechanism, it is characterized in that: be rotatablely equipped with rotating shaft (6) in connection bracket (7), be fixed with runing rest (9) on rotating shaft (6), be fixed with adhering wheel support (2) on runing rest (9), the first installation shaft (11) and the second installation shaft (12) are installed in adhering wheel support (2), be hinged with the first installing plate (14) and the second installing plate (15) on the first installation shaft (11), be hinged with the 3rd installing plate (16) on the second installation shaft (12), be provided with the first swiveling wheel (3) at the upper rotating turret of the first installing plate (14), be provided with the second swiveling wheel (4) at the upper rotating turret of the second installing plate (15), be provided with the 3rd swiveling wheel (5) at the upper rotating turret of the 3rd installing plate (16), be hinged with first connecting rod (17) on the first installing plate (14), be hinged with second connecting rod (18) on the second installing plate (15), the other end of the other end of first connecting rod (17) and second connecting rod (18) all is hinged on the 3rd installation shaft (13), the axis of the axis of the first installation shaft (11) and the second installation shaft (12) is set in parallel, the axis of the axis of the second installation shaft (12) and the 3rd installation shaft (13) is set in parallel, be provided with the lifting driver part of the 3rd installation shaft (13) on adhering wheel support (2), one end of third connecting rod (19) and the second installing plate (15) are hinged, the other end of third connecting rod (19) and the 3rd installing plate (16) are hinged.
2. open three-point centering mechanism as claimed in claim 1 is characterized in that: be equipped with on adhering wheel support (2) and drive hydraulic cylinder (1), the piston rod and described the 3rd installation shaft (13) that drive hydraulic cylinder (1) are hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210003799 CN102513464B (en) | 2012-01-09 | 2012-01-09 | Open three-point centering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210003799 CN102513464B (en) | 2012-01-09 | 2012-01-09 | Open three-point centering mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102513464A CN102513464A (en) | 2012-06-27 |
| CN102513464B true CN102513464B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210003799 Active CN102513464B (en) | 2012-01-09 | 2012-01-09 | Open three-point centering mechanism |
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| Country | Link |
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| CN (1) | CN102513464B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2089708A (en) * | 1980-12-18 | 1982-06-30 | Index Werke Kg Hahn & Tessky | Steady for holding rod-like circular cross-section components |
| CN201098854Y (en) * | 2007-09-12 | 2008-08-13 | 娄永标 | Three supporting points adjustable centering clamping device |
| DE102008050276A1 (en) * | 2007-10-05 | 2009-05-20 | GM Global Technology Operations, Inc., Detroit | Panel fixturing apparatus for locating and supporting automotive body panel, has automotive body panel comprising three extending channels receiving respective one of three spherically shaped contactors i.e. canoe ball contactor |
| CN201324945Y (en) * | 2008-11-21 | 2009-10-14 | 四川长征机床集团有限公司 | Self-centering center frame |
| JP2010240760A (en) * | 2009-04-01 | 2010-10-28 | Denso Corp | Centering device for workpiece |
| CN101879680A (en) * | 2009-05-08 | 2010-11-10 | 广西玉柴机器股份有限公司 | Cylinder cover positioning and clamping device in the process of finish-milling top surface of cylinder cover |
| CN202427851U (en) * | 2012-01-09 | 2012-09-12 | 无锡南天安全设施有限公司 | Open three-point centering mechanism |
-
2012
- 2012-01-09 CN CN 201210003799 patent/CN102513464B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2089708A (en) * | 1980-12-18 | 1982-06-30 | Index Werke Kg Hahn & Tessky | Steady for holding rod-like circular cross-section components |
| CN201098854Y (en) * | 2007-09-12 | 2008-08-13 | 娄永标 | Three supporting points adjustable centering clamping device |
| DE102008050276A1 (en) * | 2007-10-05 | 2009-05-20 | GM Global Technology Operations, Inc., Detroit | Panel fixturing apparatus for locating and supporting automotive body panel, has automotive body panel comprising three extending channels receiving respective one of three spherically shaped contactors i.e. canoe ball contactor |
| CN201324945Y (en) * | 2008-11-21 | 2009-10-14 | 四川长征机床集团有限公司 | Self-centering center frame |
| JP2010240760A (en) * | 2009-04-01 | 2010-10-28 | Denso Corp | Centering device for workpiece |
| CN101879680A (en) * | 2009-05-08 | 2010-11-10 | 广西玉柴机器股份有限公司 | Cylinder cover positioning and clamping device in the process of finish-milling top surface of cylinder cover |
| CN202427851U (en) * | 2012-01-09 | 2012-09-12 | 无锡南天安全设施有限公司 | Open three-point centering mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102513464A (en) | 2012-06-27 |
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