CN202910130U - Soft mandril for guide pipe forming - Google Patents
Soft mandril for guide pipe forming Download PDFInfo
- Publication number
- CN202910130U CN202910130U CN 201220515907 CN201220515907U CN202910130U CN 202910130 U CN202910130 U CN 202910130U CN 201220515907 CN201220515907 CN 201220515907 CN 201220515907 U CN201220515907 U CN 201220515907U CN 202910130 U CN202910130 U CN 202910130U
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- sleeve
- conical screw
- screw
- conical
- soft
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Abstract
A soft mandril for guide pipe forming is characterized by comprising a sleeve, an expansive sleeve, a conical screw, a barrel, a bolt and a gasket. The sleeve is sleeved outside the expansive sleeve, the conical screw is installed in the expansive sleeve, the bolt penetrates through the gasket to be installed at one end of the conical screw, the conical sleeve is installed at one end of the conical screw through thread connection, the other end of the conical screw is an outer cone structure with taper, and the taper angle of the outer cone is 6-10 degrees. The soft mandril for guide pipe forming has the advantages of eliminating procedures of rosin filling and sand filling, overcomes the shortcomings that a rosin filling device is backward, sand filling totally depends on manpower and can be influenced by individual difference, the tightness degree of sand filling is unstable and the like, greatly improves production efficiency, reduces cost and shortens production period.
Description
Technical field
The utility model relates to the inner wall supporting device field of tube bending forming, particularly the soft plug of a kind of duct forming.
Background technology
Tube bending processing is the basic working procedure that conduit is made.Aero-engine upper conduit quantity is a lot, different, most conduits are curvature of space, adopt in the CNC tube bending machine BENDING PROCESS, as easy as rolling off a logly the outer wall attenuation occurs even break, the phenomenons such as inwall thickening even wrinkling and cross section are oval, for avoiding occurring the problems referred to above, the filler of often packing into before the bend pipe is to improve interior support.
Because aviation only guarantees conduit external diameter and thickness of pipe wall size with domestic tubing, not tight to the guide pipe inner hole dimensional requirement, numerical-control bending does not mate with plug and domestic tubing, can only fill with by inner chamber the traditional handicrafts such as rosin, back-up sand, to satisfy Large Diameter Pipeline stainless steel pipe normal temperature numerical-control bending batch production requirements, fall behind yet fill with rosin equipment, back-up sand relies on manually fully, affected by individual differences, the tightness that adds sand is unstable, thereby affects the guiding-tube bend quality.
The utility model content
The purpose of this utility model is in order to improve aeroengine pipeline bending quality and efficient, changes conventional tube forming technologies such as filling with rosin, back-up sand, and the spy provides a kind of duct forming soft plug.
The utility model provides a kind of duct forming soft plug, it is characterized in that: the soft plug of described duct forming comprises sleeve 1, expansion set 2, conical screw 3, swivel nut 4, screw 5, packing ring 6;
Wherein: sleeve 1 is enclosed within the outside of expansion set 2, conical screw 3 is installed in expansion set 2 inside, screw 5 passes the end that packing ring 6 is installed in conical screw 3, swivel nut 4 is threaded connection an end that is installed in conical screw 3, the other end of conical screw 3 is the Outer Taper structure with tapering, and the Outer Taper cone angle is 6 ~ 10 °.
The material of described sleeve 1 is engineering plastics, is specially the polyetheretherketonematerials materials part.
Described conical screw 3 is 45# steel materials and parts.
Described expansion set 2 ends are with interior wimble structure, and the angle a of interior wimble structure is between 6 ~ 10 °.
Duct forming is inner wall supporting device for tube bending forming with soft plug, in the guiding-tube bend process, is used for the inwall of supporting tube bending radius, prevents tubular distortion and subsides.The endoporus tolerance is larger, is the elimination gap, plug employing cone centering expanding structure, and by the outer field plastic sleeve of motion swelling plug of cone screw rod, thereby warp in the swelling conduit is eliminated the radial clearance between the interior warp of plug and pipe.
The material of sleeve 1 is engineering plastics, in plug swelling process, avoids tube wall to scratch; Expansion set 2 adopts the T8A material, stage-hardening, and L1 section hardness is high, and L2 section hardness is low, and its left end screw thread is connected with sleeve 1, right-hand member d1 section part and sleeve 1 matched in clearance, diameter is that the part of d section is slidingly matched with conical screw 3, h is of a size of 1.5～3 millimeters.
Advantage of the present utility model:
The soft plug of duct forming described in the utility model, filling rosin, sand filling process in the conduit manufacturing process have been cancelled, having solved filling rosin equipment falls behind, back-up sand relies on manually fully, affected by individual differences, the unstable unsafe factor that waits of the tightness of back-up sand has improved production efficiency greatly, reduce cost, shortened the production cycle.
Description of drawings
Below in conjunction with drawings and the embodiments the utility model is described in further detail:
Fig. 1 is duct forming with soft mandrel structure schematic diagram;
Fig. 2 is the expansion set structural representation.
The specific embodiment
The present embodiment provides a kind of duct forming soft plug, it is characterized in that: the soft plug of described duct forming comprises sleeve 1, expansion set 2, conical screw 3, swivel nut 4, screw 5, packing ring 6;
Wherein: sleeve 1 is enclosed within the outside of expansion set 2, conical screw 3 is installed in expansion set 2 inside, screw 5 passes the end that packing ring 6 is installed in conical screw 3, swivel nut 4 is threaded connection an end that is installed in conical screw 3, the other end of conical screw 3 is the Outer Taper structure with tapering, and the Outer Taper cone angle is 6 °.
The material of described sleeve 1 is engineering plastics, is specially the polyetheretherketonematerials materials part.
Described conical screw 3 is 45# steel materials and parts.
Described expansion set 2 ends are with interior wimble structure, and the angle a of interior wimble structure is at 6 °.
Duct forming is inner wall supporting device for tube bending forming with soft plug, in the guiding-tube bend process, is used for the inwall of supporting tube bending radius, prevents tubular distortion and subsides.The endoporus tolerance is larger, is the elimination gap, plug employing cone centering expanding structure, and by the outer field plastic sleeve of motion swelling plug of cone screw rod, thereby warp in the swelling conduit is eliminated the radial clearance between the interior warp of plug and pipe.
The material of sleeve 1 is engineering plastics, in plug swelling process, avoids tube wall to scratch; Expansion set 2 adopts the T8A material, stage-hardening, and L1 section hardness is high, and L2 section hardness is low, and its left end screw thread is connected with sleeve 1, right-hand member d1 section part and sleeve 1 matched in clearance, diameter is that the part of d section is slidingly matched with conical screw 3, h is of a size of 1.5 millimeters.
The present embodiment provides a kind of duct forming soft plug, it is characterized in that: the soft plug of described duct forming comprises sleeve 1, expansion set 2, conical screw 3, swivel nut 4, screw 5, packing ring 6;
Wherein: sleeve 1 is enclosed within the outside of expansion set 2, conical screw 3 is installed in expansion set 2 inside, screw 5 passes the end that packing ring 6 is installed in conical screw 3, swivel nut 4 is threaded connection an end that is installed in conical screw 3, the other end of conical screw 3 is the Outer Taper structure with tapering, and the Outer Taper cone angle is 8 °.
The material of described sleeve 1 is engineering plastics, is specially the polyetheretherketonematerials materials part.
Described conical screw 3 is 45# steel materials and parts.
Described expansion set 2 ends are with interior wimble structure, and the angle a of interior wimble structure is at 8 °.
Duct forming is inner wall supporting device for tube bending forming with soft plug, in the guiding-tube bend process, is used for the inwall of supporting tube bending radius, prevents tubular distortion and subsides.The endoporus tolerance is larger, is the elimination gap, plug employing cone centering expanding structure, and by the outer field plastic sleeve of motion swelling plug of cone screw rod, thereby warp in the swelling conduit is eliminated the radial clearance between the interior warp of plug and pipe.
The material of sleeve 1 is engineering plastics, in plug swelling process, avoids tube wall to scratch; Expansion set 2 adopts the T8A material, stage-hardening, and L1 section hardness is high, and L2 section hardness is low, and its left end screw thread is connected with sleeve 1, right-hand member d1 section part and sleeve 1 matched in clearance, diameter is that the part of d section is slidingly matched with conical screw 3, h is of a size of 2 millimeters.
The present embodiment provides a kind of duct forming soft plug, it is characterized in that: the soft plug of described duct forming comprises sleeve 1, expansion set 2, conical screw 3, swivel nut 4, screw 5, packing ring 6;
Wherein: sleeve 1 is enclosed within the outside of expansion set 2, conical screw 3 is installed in expansion set 2 inside, screw 5 passes the end that packing ring 6 is installed in conical screw 3, swivel nut 4 is threaded connection an end that is installed in conical screw 3, the other end of conical screw 3 is the Outer Taper structure with tapering, and the Outer Taper cone angle is 10 °.
The material of described sleeve 1 is engineering plastics, is specially the polyetheretherketonematerials materials part.
Described conical screw 3 is 45# steel materials and parts.
Described expansion set 2 ends are with interior wimble structure, and the angle a of interior wimble structure is at 10 °.
Duct forming is inner wall supporting device for tube bending forming with soft plug, in the guiding-tube bend process, is used for the inwall of supporting tube bending radius, prevents tubular distortion and subsides.The endoporus tolerance is larger, is the elimination gap, plug employing cone centering expanding structure, and by the outer field plastic sleeve of motion swelling plug of cone screw rod, thereby warp in the swelling conduit is eliminated the radial clearance between the interior warp of plug and pipe.
The material of sleeve 1 is engineering plastics, in plug swelling process, avoids tube wall to scratch; Expansion set 2 adopts the T8A material, stage-hardening, and L1 section hardness is high, and L2 section hardness is low, and its left end screw thread is connected with sleeve 1, right-hand member d1 section part and sleeve 1 matched in clearance, diameter is that the part of d section is slidingly matched with conical screw 3, h is of a size of 3 millimeters.
Claims (2)
1. soft plug of duct forming, it is characterized in that: the soft plug of described duct forming comprises sleeve (1), expansion set (2), conical screw (3), swivel nut (4), screw (5), packing ring (6);
Wherein: sleeve (1) is enclosed within the outside of expansion set (2), conical screw (3) is installed in expansion set (2) inside, screw (5) passes the end that packing ring (6) is installed in conical screw (3), swivel nut (4) is threaded connection an end that is installed in conical screw (3), the other end of conical screw (3) is the Outer Taper structure with tapering, and the Outer Taper cone angle is 6 ~ 10 °.
2. according to the soft plug of duct forming claimed in claim 1, it is characterized in that: described expansion set (2) is terminal with interior wimble structure, and the angle a of interior wimble structure is between 6 ~ 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220515907 CN202910130U (en) | 2012-10-09 | 2012-10-09 | Soft mandril for guide pipe forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220515907 CN202910130U (en) | 2012-10-09 | 2012-10-09 | Soft mandril for guide pipe forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202910130U true CN202910130U (en) | 2013-05-01 |
Family
ID=48158475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220515907 Expired - Lifetime CN202910130U (en) | 2012-10-09 | 2012-10-09 | Soft mandril for guide pipe forming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202910130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886406A (en) * | 2012-10-09 | 2013-01-23 | 沈阳黎明航空发动机(集团)有限责任公司 | Soft mandrel for forming conduit |
-
2012
- 2012-10-09 CN CN 201220515907 patent/CN202910130U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886406A (en) * | 2012-10-09 | 2013-01-23 | 沈阳黎明航空发动机(集团)有限责任公司 | Soft mandrel for forming conduit |
| CN102886406B (en) * | 2012-10-09 | 2015-06-10 | 沈阳黎明航空发动机(集团)有限责任公司 | Soft mandrel for forming conduit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: AECC SHENYANG LIMING AERO-ENGINE Co.,Ltd. Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Aecc Shenyang Liming Aero Engine Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
|
| CX01 | Expiry of patent term |