CN201776326U - Core-pulling device in pipe bender - Google Patents
Core-pulling device in pipe bender Download PDFInfo
- Publication number
- CN201776326U CN201776326U CN2010205091697U CN201020509169U CN201776326U CN 201776326 U CN201776326 U CN 201776326U CN 2010205091697 U CN2010205091697 U CN 2010205091697U CN 201020509169 U CN201020509169 U CN 201020509169U CN 201776326 U CN201776326 U CN 201776326U
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- CN
- China
- Prior art keywords
- core
- loosing core
- oil cylinder
- piston rod
- pulling
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- 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 - Lifetime
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Abstract
The utility model discloses a core-pulling device not increasing the load of a core-pulling oil cylinder in a pipe bender. The core-pulling device comprises a mandrel pull rod and a core-pulling oil cylinder in the machine body, the mandrel pull rod is connected with a core-pulling connecting shaft through a pull rod joint and a cross joint hinged with each other; a piston rod joint is arranged on a piston rod of the core-pulling oil cylinder; a linkage nut is sleeved on the core-pulling connecting shaft; a spherical head is arranged at the end of the core-pulling connecting shaft; spherical motion chambers are arranged at the linkage nut and the piston rod joint; and the spherical head is limited between the spherical surface of the two motion chambers of the linkage nut and the piston rod joint. The scheme that the spherical head is arranged at the end of the core-pulling connecting shaft,and the spherical head and the motion chambers including spherical surface and arranged on the linkage nut and the piston rod joint are matched with each other is adopted to replace the scheme that a planar thrust bearing in the linkage nut is utilized to realize the rotation of the core rod, thereby lessening the load of the core-pulling oil cylinder and guaranteeing the stability of the entire core-pulling device. The core-pulling device is particularly suitable for large-scale pipe benders.
Description
Technical field
The utility model relates to bending machine, refers more particularly to the core-pulling device on the bending machine.
Background technology
At present, core-pulling device on the bending machine, comprise: plug pull bar and the oil cylinder of loosing core that is arranged on the fuselage, the plug pull bar links to each other with the connecting axle of loosing core with cruciform joint by the rod head that is movably hinged, the piston rod of 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 by 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.
The utility model content
Technical problem to be solved in the utility model is: the core-pulling device on a kind of bending machine of the load that does not increase the oil cylinder of loosing core is provided.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is: the core-pulling device on the bending machine, comprise: plug pull bar and the oil cylinder of loosing core that is arranged on the fuselage, the plug pull bar links to each other with the connecting axle of loosing core with cruciform joint by the rod head that is movably hinged, the piston rod of 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, 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.
Another technical problem to be solved in the utility model is: the core-pulling device on a kind of bending machine of the installation strength that increases the oil cylinder of loosing core is provided.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is: 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 by 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 by gag, be fixed on the guide rail of loosing core by 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 beneficial effects of the utility model are: ballhead is arranged in the connecting axle end by loosing core, match with the recreation room that contains sphere on coupling nut and the piston rod attachment by 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 by 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 by gag, and is fixed in the horizontal direction by 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 utility model.
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 utility model in detail.
As shown in Figure 1, core-pulling device on the bending machine described in the utility model, comprise: plug pull bar 11 and the oil cylinder 4 of loosing core that is arranged on the fuselage 1, plug pull bar 11 links to each other with the connecting axle 8 of loosing core with cruciform joint 9 by the rod head 10 that is movably hinged, the piston rod of 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, be respectively arranged with the recreation room that contains sphere that matches with ballhead 81 on coupling nut 7 and the piston rod attachment 6, 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 in 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, loosing core, guide rail 2 links to each other base plate 5 with loosing core by being movably arranged on four T type nuts 12 (two T type nuts 12 in each T type groove) in the T type groove, and be pressed on the both sides of the guide rail 2 of loosing core by gag 3, be fixed on the guide rail 2 of loosing core by 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 (2)
1. the core-pulling device on the bending machine, comprise: plug pull bar and the oil cylinder of loosing core that is arranged on the fuselage, the plug pull bar links to each other with the connecting axle of loosing core with cruciform joint by the rod head that is movably hinged, the piston rod of oil cylinder of loosing core is provided with piston rod attachment, it is characterized in that: be set with coupling nut on the described connecting axle of loosing core, the loose core end of connecting axle 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.
2. the core-pulling device on the bending machine as claimed in claim 1, it is characterized in that: 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 by 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 by gag, be fixed on the guide rail of loosing core by 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 |
|---|---|---|---|
| CN2010205091697U CN201776326U (en) | 2010-08-30 | 2010-08-30 | Core-pulling device in pipe bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205091697U CN201776326U (en) | 2010-08-30 | 2010-08-30 | Core-pulling device in pipe bender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201776326U true CN201776326U (en) | 2011-03-30 |
Family
ID=43789559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205091697U Expired - Lifetime CN201776326U (en) | 2010-08-30 | 2010-08-30 | Core-pulling device in pipe bender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201776326U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947583A (en) * | 2010-08-30 | 2011-01-19 | 张家港市明华机械制造有限公司 | Core-pulling device on tube bender |
| CN109530506A (en) * | 2017-09-21 | 2019-03-29 | 比亚迪股份有限公司 | The bending forming method of filling block and hollow material |
| WO2019109431A1 (en) * | 2017-12-08 | 2019-06-13 | 广州敏实汽车零部件有限公司 | Machine for extracting specified rubber strip |
-
2010
- 2010-08-30 CN CN2010205091697U patent/CN201776326U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947583A (en) * | 2010-08-30 | 2011-01-19 | 张家港市明华机械制造有限公司 | Core-pulling device on tube bender |
| CN101947583B (en) * | 2010-08-30 | 2012-05-23 | 张家港市明华机械制造有限公司 | Core-pulling device on tube bender |
| CN109530506A (en) * | 2017-09-21 | 2019-03-29 | 比亚迪股份有限公司 | The bending forming method of filling block and hollow material |
| WO2019109431A1 (en) * | 2017-12-08 | 2019-06-13 | 广州敏实汽车零部件有限公司 | Machine for extracting specified rubber strip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110330 Effective date of abandoning: 20120523 |