CN101947583B - Core-pulling device on tube bender - Google Patents
Core-pulling device on tube bender Download PDFInfo
- Publication number
- CN101947583B CN101947583B CN2010102658582A CN201010265858A CN101947583B CN 101947583 B CN101947583 B CN 101947583B CN 2010102658582 A CN2010102658582 A CN 2010102658582A CN 201010265858 A CN201010265858 A CN 201010265858A CN 101947583 B CN101947583 B CN 101947583B
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- CN
- China
- Prior art keywords
- core
- loosing core
- oil cylinder
- piston rod
- pulling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Bending Of Plates, Rods, And Pipes (AREA)
- Actuator (AREA)
Abstract
The invention discloses a core-pulling device on a tube bender, which does not increase the load of a core-pulling oil cylinder. The core-pulling device on the tube bender comprises a mandrel drawing rod and the core-pulling oil cylinder, wherein the core-pulling oil cylinder is arranged on a tube bender body, the mandrel drawing rod is connected with a core-pulling connecting shaft by a drawing rod joint and a cross joint which are articulated together, a piston rod joint is arranged on a piston rod of the core-pulling oil cylinder, a joint nut is sleeved on the core-pulling connecting shaft, the end of the core-pulling connecting shaft is provided with a sphere head, spherical moving chambers are respectively arranged on the joint nut and the piston rod joint, and the sphere head is bound between the spherical surfaces of a pair of moving chambers of the joint nut and the piston rod joint. Because the end of the core-pulling connecting shaft is arranged into the sphere head and the sphere head is matched with the moving chambers with the spherical surfaces on the joint nut and the piston rod joint, the invention replaces a plane thrust bearing to realize the rotating function of a mandrel drawing rod in the joint nut, reduces the load of the core-pulling oil cylinder, ensures the stability of the whole core-pulling device and is especially suitable for being used in a large-size tube bender.
Description
Technical field
The present invention relates to bending machine, refer more particularly to the core-pulling device on the bending machine.
Background technology
At present; Core-pulling device on the bending machine; Comprise: the plug pull bar be arranged on the oil cylinder of loosing core on the fuselage; The plug pull bar links to each other with the connecting axle of loosing core with cruciform joint through the rod head that is movably hinged, and the piston rod of the oil cylinder of loosing core is provided with piston rod attachment, and the connecting axle of loosing core links to each other with piston rod attachment with plain thrust bearing through coupling nut.It is no problem that this structure is used on the minor bend machine, but when being used on the large-scale bending machine, plain thrust bearing usually can be owing to its holding capacity is damaged less than actual load; For this reason, must increase plain thrust bearing, corresponding, the external diameter of coupling nut also wants the phase strain big, thereby has increased the load of the oil cylinder of loosing core, and has influenced the stability of whole core-pulling device.In addition, loose core the at present mounting structure of oil cylinder can not satisfy the needs of large-scale bending machine to installation strength.
Summary of the invention
Technical problem to be solved by this invention is: providing a kind of does not increase the load of the oil cylinder of loosing core and can increase the core-pulling device on the bending machine of installation strength of the oil cylinder of loosing core.
In order to solve the problems of the technologies described above; The technical scheme that the present invention adopted is: the core-pulling device on the bending machine; Comprise: the plug pull bar be arranged on the oil cylinder of loosing core on the fuselage, the plug pull bar links to each other with the connecting axle of loosing core with cruciform joint through the rod head that is movably hinged, the piston rod of the oil cylinder of loosing core is provided with piston rod attachment; Be set with coupling nut on the described connecting axle of loosing core; The loose core end of connecting axle is provided with ballhead, is respectively arranged with the recreation room that contains sphere that matches with ballhead on coupling nut and the piston rod attachment, and ballhead is bound between the sphere of a pair of recreation room of coupling nut and piston rod attachment;
The structure that specifically is provided with of the described oil cylinder of loosing core comprises: be fixed on T font on the fuselage guide rail of loosing core; Loose core and offer a pair of T type groove that is parallel to each other on the guide rail; The base plate of loosing core links to each other with the guide rail of loosing core through the T type nut that is movably arranged in the T type groove; And be pressed on the both sides of the guide rail of loosing core through gag, and being fixed on the guide rail of loosing core through pressure strip and the locking nut base plate of will loosing core, the described oil cylinder of loosing core is fixed on the base plate of loosing core.
The invention has the beneficial effects as follows: ballhead is arranged in the connecting axle end through loosing core; Match with the recreation room that contains sphere on coupling nut and the piston rod attachment through ballhead; Replaced in coupling nut and realized the plug spinfunction with plain thrust bearing; Alleviate the load of the oil cylinder of loosing core, guaranteed the stability of whole core-pulling device; In addition, be fixed on the fuselage through the guide rail of will loosing core, the oil cylinder base plate of loosing core is pressed on the both sides of the guide rail of loosing core through gag, and fixes in the horizontal direction through T type nut, the installation strength of the oil cylinder that fully guaranteed to loose core.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, fuselage, 2, the guide rail of loosing core, 3, gag, 4, the oil cylinder of loosing core; 5, the base plate of loosing core, 6, piston rod attachment, 7, coupling nut, 8, the connecting axle of loosing core; 81, ballhead, 9, cruciform joint, 10, rod head, 11, the plug pull bar; 12, T type nut, 13, pressure strip, 14, locking nut.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 1; Core-pulling device on the bending machine of the present invention; Comprise: plug pull bar 11 be arranged on the oil cylinder 4 of loosing core on the fuselage 1, plug pull bar 11 links to each other with the connecting axle 8 of loosing core with cruciform joint 9 through the rod head 10 that is movably hinged, the piston rod of the oil cylinder 4 of loosing core is provided with piston rod attachment 6; Be set with coupling nut 7 on the described connecting axle 8 of loosing core; The loose core end of connecting axle 8 is provided with ballhead 81, is respectively arranged with the recreation room that contains sphere that matches with ballhead 81 on coupling nut 7 and the piston rod attachment 6, and ballhead 81 is bound between the sphere of a pair of recreation room of coupling nut 7 and piston rod attachment 6.In the present embodiment; The concrete mounting structure of oil cylinder 4 of loosing core is: the T font guide rail 2 of loosing core is fixed on the fuselage 1 with the mode of welding; Loose core and offer a pair of T type groove that is parallel to each other on the guide rail 2; The base plate 5 of loosing core links to each other with the guide rail 2 of loosing core through four the T type nuts 12 (two T type nuts 12 in each T type groove) that are movably arranged in the T type groove, and is pressed on the both sides of the guide rail 2 of loosing core through gag 3, is fixed on the guide rail 2 of loosing core through pressure strip 13 and locking nut 14 base plate 5 of will loosing core; The described oil cylinder 4 of loosing core is fixed on the base plate 5 of loosing core.
Claims (1)
1. the core-pulling device on the bending machine; Comprise: the plug pull bar be arranged on the oil cylinder of loosing core on the fuselage; The plug pull bar links to each other with the connecting axle of loosing core with cruciform joint through the rod head that is movably hinged; The piston rod of oil cylinder of loosing core is provided with piston rod attachment, and it is characterized in that: be set with coupling nut on the described connecting axle of loosing core, the end of the connecting axle of loosing core is provided with ballhead; Be respectively arranged with the recreation room that contains sphere that matches with ballhead on coupling nut and the piston rod attachment, ballhead is bound between the sphere of a pair of recreation room of coupling nut and piston rod attachment; The structure that specifically is provided with of the described oil cylinder of loosing core comprises: be fixed on T font on the fuselage guide rail of loosing core; Loose core and offer a pair of T type groove that is parallel to each other on the guide rail; The base plate of loosing core links to each other with the guide rail of loosing core through the T type nut that is movably arranged in the T type groove; And be pressed on the both sides of the guide rail of loosing core through gag, and being fixed on the guide rail of loosing core through pressure strip and the locking nut base plate of will loosing core, the described oil cylinder of loosing core is fixed on the base plate of loosing core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102658582A CN101947583B (en) | 2010-08-30 | 2010-08-30 | Core-pulling device on tube bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102658582A CN101947583B (en) | 2010-08-30 | 2010-08-30 | Core-pulling device on tube bender |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101947583A CN101947583A (en) | 2011-01-19 |
| CN101947583B true CN101947583B (en) | 2012-05-23 |
Family
ID=43451283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102658582A Expired - Fee Related CN101947583B (en) | 2010-08-30 | 2010-08-30 | Core-pulling device on tube bender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101947583B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601187B (en) * | 2012-03-06 | 2015-07-15 | 宁波敏实汽车零部件技术研发有限公司 | Soft mandrel inserting and extracting device and inserting and extracting method |
| CN110142319A (en) * | 2019-06-19 | 2019-08-20 | 浙江大学城市学院 | The core-pulling mechanism of minor diameter pipe bending machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3561249A (en) * | 1968-11-29 | 1971-02-09 | Richard B Freeman | Blind rivet tool with modulated force linkage |
| US5632176A (en) * | 1995-10-06 | 1997-05-27 | Pines Manufacturing | Programmable pressure controlled mandrel extractor for tube bending machine |
| CN101234466A (en) * | 2008-03-11 | 2008-08-06 | 无锡曙光模具有限公司 | Vehicle rear axle assembly breast beam production method and special-purpose mold therefor |
| CN101259495A (en) * | 2008-04-22 | 2008-09-10 | 林伟明 | Core rod device for tube bender |
| CN201537648U (en) * | 2009-10-28 | 2010-08-04 | 浙江广立钢结构建设有限公司 | Hand-operated core pulling pipe bender |
| CN201776326U (en) * | 2010-08-30 | 2011-03-30 | 张家港市明华机械制造有限公司 | Core-pulling device in pipe bender |
-
2010
- 2010-08-30 CN CN2010102658582A patent/CN101947583B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3561249A (en) * | 1968-11-29 | 1971-02-09 | Richard B Freeman | Blind rivet tool with modulated force linkage |
| US5632176A (en) * | 1995-10-06 | 1997-05-27 | Pines Manufacturing | Programmable pressure controlled mandrel extractor for tube bending machine |
| CN101234466A (en) * | 2008-03-11 | 2008-08-06 | 无锡曙光模具有限公司 | Vehicle rear axle assembly breast beam production method and special-purpose mold therefor |
| CN101259495A (en) * | 2008-04-22 | 2008-09-10 | 林伟明 | Core rod device for tube bender |
| CN201537648U (en) * | 2009-10-28 | 2010-08-04 | 浙江广立钢结构建设有限公司 | Hand-operated core pulling pipe bender |
| CN201776326U (en) * | 2010-08-30 | 2011-03-30 | 张家港市明华机械制造有限公司 | Core-pulling device in pipe bender |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101947583A (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 |
Granted publication date: 20120523 Termination date: 20160830 |
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| CF01 | Termination of patent right due to non-payment of annual fee |