CN202427777U - Core shaft of pipe bender - Google Patents
Core shaft of pipe bender Download PDFInfo
- Publication number
- CN202427777U CN202427777U CN2012200126487U CN201220012648U CN202427777U CN 202427777 U CN202427777 U CN 202427777U CN 2012200126487 U CN2012200126487 U CN 2012200126487U CN 201220012648 U CN201220012648 U CN 201220012648U CN 202427777 U CN202427777 U CN 202427777U
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- Prior art keywords
- spherical
- joint
- cylinder
- hole
- ball
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- Expired - Fee Related
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The utility model discloses a core shaft with a stronger bending function, which is formed by concatenating at least two joint bodies, wherein a moving body is arranged and composed of a spherical joint, a spherical plug and a check ring; a spherical connector is adopted at the front end of the spherical joint while a cylinder is adopted at the back end; a radial hole is arranged on the cylinder; a spherical hole is formed in the middle of an embedding body after the spherical plug is embedded in the cylinder; the spherical connector of the front end of the next spherical joint is located in the spherical hole and rotatably coordinated with the spherical hole; the cylinder part of the spherical joint is located in a shaft hole; the check ring is embedded in a groove on the cylinder; and bosses of the check ring and the tail end of the cylinder are respectively clamped at two ends of the shaft hole. According to the utility model, the coordination mode of a universal joint is formed between the joint bodies to ensure that the bending processing capacity is stronger; and a moving coordination relation is formed between a spherical body and the spherical joint to ensure that spherical bodies with different diameters can be mounted so long as the check ring is dismounted and the use efficiency of the moving body is improved.
Description
Technical field
The utility model relates to the mandrel of a kind of bending machine, particularly bending machine.
Background technology
Pipe fitting is in the bending machining process, and the outside of pipe fitting can receive the pulling force influence, thereby produces the phenomenon of elongation of the pipe fitting outside and tube wall attenuate, simultaneously, and the inboard pressurized of pipe fitting.Because the pipe fitting outside and the inboard effect that receives different power, after the pipe fitting bending machining was accomplished, often the circularity of the brake forming section of pipe fitting can be very poor, and the brake forming section that is to say pipe fitting is a flat tube.In order to guarantee the circularity after pipe fitting is processed, all is to add mandrel now in the inside of pipe fitting, guarantee the circularity of bending section when making bending machining as far as possible.At present, common bending machine mandrel can only guarantee the circularity of crooked starting point, can not guarantee the circularity of whole bending section.The equipment that has a Britain Edison Co. to produce has now solved this difficult problem preferably.It mainly is made up of with the mobile that is contained in the spherical surface body spherical surface body, adopts bearing pin to connect between each mobile, and its structure is simpler, and cost is low, has solved the defective that prior art exists basically.But, adopting the bearing pin connected mode between each mobile of this equipment, its bending direction can only be identical with the bearing pin direction of rotation, and therefore, bending machining can only be carried out in two-dimensional space, and its crooked function is limited.Simultaneously, the bearing pin connected mode of employing is a fixed form, to the processing of different tube diameters, need exchange the mandrel of different size for.
Summary of the invention
The purpose of the utility model provides a kind of bending mandrel with better function.
The technical scheme of the utility model is: formed by at least two joint body serial connections, said joint body comprises spherical surface body and the mobile that is positioned at spherical surface body, and said mobile is made up of ball-joint, bulb stopper and back-up ring; The front end of said ball-joint is a spherical connecting body, and the rear end is a cylinder, and this cylindrical front portion is provided with draw-in groove; Afterbody is provided with boss, and cylinder is provided with radial hole, and bulb stopper is embedded in the radial hole; After bulb stopper and cylinder are chimeric; Form spherical pore in the middle of its chimera, the spherical connecting body of next stage ball-joint front end is arranged in this spherical pore, and cooperates with this spherical pore rotation; The center of said spherical surface body is provided with axis hole, and the barrel portion of ball-joint is arranged in axis hole, and ring washer is embedded in the groove on the cylinder, and the boss of back-up ring and cylinder tail end is stuck in the axis hole two ends, and the external diameter of back-up ring and boss is all greater than the internal diameter of axis hole.
In the utility model, the spherical connecting body of next stage ball-joint front end is arranged in the spherical pore of upper level ball-joint, and cooperates with this spherical pore rotation.Therefore, formed the fit system of universal joint between each joint body, at different levels all can three degree of freedom rotation, its bending machining ability is stronger.Because spherical surface body is a kind of movable matching relationship with cooperating of ball-joint, as long as pull down just can the change the outfit spherical surface body of different-diameter specification of back-up ring, therefore, saved mobile, improved the service efficiency of mobile.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of ball-joint in the utility model.
Fig. 3 is the structural representation of bulb stopper in the utility model.
Fig. 4 is the structural representation of spherical surface body in the utility model.
Fig. 5 is the structural representation of mobile in the utility model.
Fig. 6 is the STRUCTURE DECOMPOSITION sketch map of Fig. 5.
Fig. 7 is the structural representation of joint body in the utility model.
Fig. 8 is the STRUCTURE DECOMPOSITION sketch map of Fig. 7.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain, but do not constitute any restriction the utility model.Fig. 1 is the structural representation of the utility model, is formed by at least two joint body serial connections.Fig. 7 and shown in Figure 8, the joint body is made up of with the mobile that is positioned at spherical surface body 4 spherical surface body 4.Fig. 2 is the structural representation of ball-joint 1 in the utility model, and the front end of ball-joint 1 is a spherical connecting body, and the rear end is a cylinder, and this cylindrical front portion is provided with draw-in groove, and afterbody is provided with boss, and cylinder is provided with radial hole.Fig. 3 is the structural representation of bulb stopper 2 in the utility model.Fig. 4 is the structural representation of spherical surface body 4 in the utility model, and the center of spherical surface body 4 is provided with axis hole.Fig. 5 and shown in Figure 6, mobile is made up of ball-joint 1, bulb stopper 2 and back-up ring 3.Bulb stopper 2 is embedded on the ball-joint 1 in the cylindrical radial hole, bulb stopper 2 with cylinder chimeric after, form spherical pore in the middle of its chimera, the spherical connecting body of next stage ball-joint 1 front end is arranged in this spherical pore, and cooperates with this spherical pore rotation.The barrel portion of ball-joint 1 is arranged in the axis hole of spherical surface body 4; Ring washer is embedded in the groove on the cylinder; The boss of back-up ring 3 and cylinder tail end is stuck in the axis hole two ends, and the external diameter of back-up ring 3 and boss can not deviate from ball-joint 1 all greater than the internal diameter of axis hole from axis hole.During installation, with the spherical connecting body of ball-joint 1 front end, on the upper level ball-joint 1 of radially packing in the cylindrical radial hole; Again bulb stopper 2 is embedded in the radial hole; Forms an integral body by ball-joint 1 and bulb stopper 2, the spherical connecting body of upper level ball-joint 1 front end is encased the formation gimbal structure.Above-mentioned mounted assembly integral installation is gone in the axis hole on the spherical surface body 4, and back-up ring 3 is snapped in the groove on the cylinder, at this moment; The boss of cylinder afterbody lays respectively at outside the axis hole two ends on back-up ring 3 and the ball-joint 1, and the external diameter of back-up ring 3 and boss is all greater than the internal diameter of axis hole, therefore; Ball-joint 1 can not be deviate from from the axis hole of spherical surface body 4; Simultaneously, bulb stopper 2 receives the shaft hole inner wall restriction can not be deviate from, and has guaranteed reliability of structure.During work, the utility model is penetrated in the pipe fitting, spherical surface body 4 contacts with pipe fitting inner wall, and circularity is constant when guaranteeing the pipe fitting bending.Because between balls at different levels and the joint is the universal joint fit system, so can carry out the bending machining of three degree of freedom.
Claims (1)
1. the mandrel of a bending machine; Form by at least two joint body serial connections; Said joint body comprises spherical surface body (4) and is positioned at the mobile of spherical surface body (4), it is characterized in that: said mobile is made up of ball-joint (1), bulb stopper (2) and back-up ring (3); The front end of said ball-joint (1) is a spherical connecting body, and the rear end is a cylinder, and this cylindrical front portion is provided with draw-in groove; Afterbody is provided with boss, and cylinder is provided with radial hole, and bulb stopper (2) is embedded in the radial hole; After bulb stopper (2) and cylinder are chimeric; In the middle of its chimera is spherical pore, and the spherical connecting body of next ball-joint (1) front end is arranged in this spherical pore, and cooperates with this spherical pore rotation; The center of said spherical surface body (4) is provided with axis hole; The barrel portion of ball-joint (1) is arranged in axis hole; Ring washer is embedded in the groove on the cylinder, and the boss of back-up ring (3) and cylinder tail end is stuck in the axis hole two ends, and the external diameter of back-up ring (3) and boss is all greater than the internal diameter of axis hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200126487U CN202427777U (en) | 2012-01-12 | 2012-01-12 | Core shaft of pipe bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200126487U CN202427777U (en) | 2012-01-12 | 2012-01-12 | Core shaft of pipe bender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202427777U true CN202427777U (en) | 2012-09-12 |
Family
ID=46777252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200126487U Expired - Fee Related CN202427777U (en) | 2012-01-12 | 2012-01-12 | Core shaft of pipe bender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202427777U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513422A (en) * | 2012-01-12 | 2012-06-27 | 长治市泽洋锻压机械有限公司 | Central spindle of pipe bender |
| CN104056885A (en) * | 2013-03-22 | 2014-09-24 | 浙江炜驰机械集团有限公司 | Pipe forming device |
| CN104096733A (en) * | 2013-04-03 | 2014-10-15 | 浙江炜驰机械集团有限公司 | Bending and forming device |
| CN104707884A (en) * | 2015-02-04 | 2015-06-17 | 西北工业大学 | Integral flexible core mold for rotary draw bending of thin-walled rectangular pipe |
| CN107803437A (en) * | 2017-12-07 | 2018-03-16 | 和和机械（张家港）有限公司 | Feeding trolley in bending machine |
| CN108177159A (en) * | 2017-12-29 | 2018-06-19 | 哈尔滨工业大学深圳研究生院 | A kind of high-mechanic gimbal suspension, mechanical arm joint and flexible mechanical arm |
-
2012
- 2012-01-12 CN CN2012200126487U patent/CN202427777U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513422A (en) * | 2012-01-12 | 2012-06-27 | 长治市泽洋锻压机械有限公司 | Central spindle of pipe bender |
| CN104056885A (en) * | 2013-03-22 | 2014-09-24 | 浙江炜驰机械集团有限公司 | Pipe forming device |
| CN104096733A (en) * | 2013-04-03 | 2014-10-15 | 浙江炜驰机械集团有限公司 | Bending and forming device |
| CN104707884A (en) * | 2015-02-04 | 2015-06-17 | 西北工业大学 | Integral flexible core mold for rotary draw bending of thin-walled rectangular pipe |
| CN107803437A (en) * | 2017-12-07 | 2018-03-16 | 和和机械（张家港）有限公司 | Feeding trolley in bending machine |
| CN108177159A (en) * | 2017-12-29 | 2018-06-19 | 哈尔滨工业大学深圳研究生院 | A kind of high-mechanic gimbal suspension, mechanical arm joint and flexible mechanical arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120912 Termination date: 20150112 |
|
| EXPY | Termination of patent right or utility model |