CN105344752A - Shaping mold for conical thin-walled part - Google Patents
Shaping mold for conical thin-walled part Download PDFInfo
- Publication number
- CN105344752A CN105344752A CN201510834420.4A CN201510834420A CN105344752A CN 105344752 A CN105344752 A CN 105344752A CN 201510834420 A CN201510834420 A CN 201510834420A CN 105344752 A CN105344752 A CN 105344752A
- Authority
- CN
- China
- Prior art keywords
- tire
- taper
- wall part
- conical thin
- conical
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
Abstract
The invention relates to a shaping mold for a conical thin-walled part. The shaping mold comprises a lower conical positioning mold body (1) and an upper conical ejecting mold body (2). A cone is formed when the small end of the lower conical positioning mold body (1) and the large end of the upper conical ejecting mold body (2) are matched together. An ejecting screw (3) penetrates through the center of the lower conical positioning mold body (1) and the center of the upper conical ejecting mold body (2) and is provided with a protruding part (8) capable of being matched with the upper top face of the lower conical positioning mold body (1) and the lower bottom face of the upper conical ejecting mold body (2). A check ring (7) is arranged at the lower end of the lower conical positioning mold body (1). The shaping mold further comprises a press plate (4). The press plate (4) is provided with a circular supporting disc (9) with the diameter equal to the inner diameter of the large opening end of the conical thin-walled part. The conical thin-walled part can be pressed to the outer wall of the cone through the press plate (4) and the check ring (7). The shaping mold can be used for shaping the part and can further prevent the part from being damaged by crushing or knocking and from deforming in the demounting process.
Description
Technical field
The invention belongs to machining apparatus technical field, relate to a kind of school shape mold, be specifically related to a kind of conical thin-wall part school shape mold.
Background technology
Combustion chamber back segment is the part of hypersonic jets combustion chamber.The operating mode of this part is high temperature, hyperbaric environment.For ensureing the reliability of part in high temperature, hyperbaric environment, part adopts exotic material GH3128 to make.This material is the nickel-base alloy also using boron, cerium, zirconium strengthening crystal boundary with tungsten, molybdenum solution strengthening, has high plasticity, higher durable creeping intensity and good non-oxidizability and the performance such as punching press, welding.This Element Design structure is thin-wall part composite brazing brazing filler metal structure, and its feature is Small Taper, large length, and part adopts cooling bath cooling, to ensure that part at high temperature normally works further.
This conical thin-wall part, after preparatory processing is shaping, needs to carry out hot school shape.By hot school shape, on the one hand eliminate a part of stress, be used for ensureing the precision of part on the other hand.But, there is no now the special mold for this conical thin-wall part hot school shape, make its hot school shape very difficult.And after the shape of hot school, often make the conical thin-wall part after the shape of school occur gouge, injure by a crashing object, the problem such as distortion.
Summary of the invention
The object of the invention is to overcome the shortcoming existed in prior art, provide a kind of conical thin-wall part school shape mold, this school shape mold can correct shape part, occur when can also prevent part from dismantling injuring by a crashing object, gouge, distortion etc.
To achieve these goals, the invention provides following technical scheme: a kind of conical thin-wall part school shape mold, it is located under comprising taper in tire and taper and ejects tire, locate under described taper and when the large end small end of tire and described taper ejecting tire is combined together, to form a complete bullet, it is characterized in that, locate center tire and taper ejecting tire under described taper and eject screw rod through one, describedly eject that screw rod is provided with can with the protuberance of locating bottom surface that the upper end face of tire and described taper eject tire under described taper and matching, the lower end of locating tire under described taper is provided with baffle ring, described school shape mold comprises pressing plate further, with the circular support plate that diameter is identical with the internal diameter of the big opening end of described conical thin-wall part on described pressing plate, and described conical thin-wall part can be fitted on the outer wall of described bullet by described pressing plate and described baffle ring.
Further, wherein, the described two ends ejecting screw rod are all provided with external screw thread, described pressing plate and described baffle ring rely on be screwed in described in eject the first nut on the two ends of screw rod and the second nut and described conical thin-wall part be fitted on the outer wall of described bullet.
Further, wherein, the tapering of described bullet is 4.05 °.
Conical thin-wall part school of the present invention shape mold has following Advantageous Effects:
1, utilize the difference of the hot line expansion factor of unlike material, the outer wall of conical thin-wall part is extended slightly.The hot line that school shape mold hot line expansion factor is greater than conical thin-wall part rises system, makes conical thin-wall part be close to mold in heating process, to eliminate the concavo-convex profile on conical thin-wall inside parts.
2, adopt this school shape mold to carry out hot school shape, temperature selects 640 DEG C, namely eliminates the internal stress of conical thin-wall part, reaches again the object of part school shape.
3, rotate with spanner and eject screw rod, locate tire under ejecting taper with spiral lift, what avoid that conical thin-wall part occurs in unloading process injures by a crashing object and gouge defect.
4, with pressing plate support conical thin-wall part big opening end, prevent conical thin-wall part big opening end because of dismounting distortion.
Accompanying drawing explanation
Fig. 1 is the longitudinally cutting schematic diagram of conical thin-wall part school of the present invention shape mold.
Fig. 2 is longitudinally cutting schematic diagram when locating tire under taper dismantled by conical thin-wall part school of the present invention shape mold after school shape is terminated.
Fig. 3 is the longitudinally cutting schematic diagram that conical thin-wall part school of the present invention shape mold dismantles when taper ejecting tire after school shape is terminated.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described, and the content of embodiment is not as the restriction to protection scope of the present invention.
Fig. 1 shows the longitudinally cutting schematic diagram of conical thin-wall part school of the present invention shape mold.As shown in Figure 1, locate in tire 1 and taper under described conical thin-wall part school shape mold comprises taper and eject tire 2.Locate under described taper and when the large end small end of tire 1 and described taper ejecting tire 2 is combined together, to form a complete bullet.Preferably, locate under described taper tire 1 upper end be provided with step, described taper ejects tire 2 and is set on described step with under described taper and locates tire 1 and be combined together.
Locate center tire 1 and taper ejecting tire 2 under described taper and eject screw rod 3 through one.Wherein, eject described in that screw rod 3 is provided with can with the protuberance 8 of locating bottom surface that the upper end face of tire 1 and described taper eject tire 2 under described taper and matching.By arranging described protuberance 8, the top that tire 1 can not be located in the upper end ejecting screw rod 3 described in making from described taper is passed down through, and described in eject screw rod 3 the bottom that can not locate tire 2 from described taper, lower end be upward through.
The lower end of locating tire 1 under described taper is provided with baffle ring 7.As shown in Figure 1, when described conical thin-wall part A is set on described bullet, the large end of described conical thin-wall part leans on described baffle ring 7.
Described school shape mold comprises pressing plate 4 further.As shown in Figure 3, on described pressing plate 4 with the circular support plate 9 that diameter is identical with the internal diameter of the big opening end of described conical thin-wall part A.Meanwhile, described conical thin-wall part A can be fitted on the outer wall of described bullet by described pressing plate 4 and described baffle ring 7.
Preferably, as shown in Figure 1, the two ends ejecting screw rod 3 described in are all provided with external screw thread.Described pressing plate 4 and described baffle ring 7 rely on be screwed in described in eject the first nut 5 on the two ends of screw rod 3 and the second nut 6 and described conical thin-wall part A be fitted on the outer wall of described bullet.
In use, first by locate under described taper tire 1 and described taper eject tire 2 be set in described in eject on screw rod 3 and they be set-located and form bullet.Then, conical thin-wall part A is set on described bullet.Afterwards, pressing plate 4 is pressed on the small end of described conical thin-wall part.By described first nut 5 and the second nut 6, described conical thin-wall part secure is fitted on described bullet.Remove described first nut 5, second nut 6 and pressing plate 4 after having press-fited, remainder is put into vacuum drying oven and be heated to 640 DEG C and carry out hot school shape.Temperature selects 640 DEG C to be the stress relief annealing temperature of conical thin-wall part, namely eliminates the internal stress that conical thin-wall part produces in reel and TIG welding process, reaches again the object of conical thin-wall part school circle.
After hot school shape completes, the conical thin-wall part A after high-ranking officers' shape locates tire 1 and taper and ejects tire 2 and unload from described taper.First, as shown in Figure 2, tire 1 is located under laying down taper.When dismantling, screw rod 3 is ejected described in rotating with spanner, owing to locating the upper end face joint of tire 1 under described protuberance 8 and described taper, locate tire 1 under making to eject described taper with spiral lift, what avoid that conical thin-wall part occurs in unloading process injures by a crashing object and gouge defect.
Secondly, as shown in Figure 3, disassemble in taper and eject tire 2.When dismantling, propping up the big opening end of described conical thin-wall part with the circular fagging 9 of described pressing plate 4, preventing the big opening end of described conical thin-wall part because of dismounting distortion.With nut, the described screw rod 3 that ejects is linked together with described pressing plate 4, and described upper end face screw rod 3 and described taper ejecting tire 2 that ejects is fixed together.Described in drawing high, eject screw rod 3, drive and described taper ejects tire 2 exit described conical thin-wall part A.
The above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (3)
1. a conical thin-wall part school shape mold, it is located under comprising taper in tire (1) and taper and ejects tire (2), locate under described taper and when the large end small end of tire (1) and described taper ejecting tire (2) is combined together, to form a complete bullet, it is characterized in that, locate center tire (1) and taper ejecting tire (2) under described taper and eject screw rod (3) through one, describedly eject that screw rod (3) is provided with can with the protuberance (8) of locating bottom surface that the upper end face of tire (1) and described taper eject tire (2) under described taper and matching, the lower end of locating tire (1) under described taper is provided with baffle ring (7), described school shape mold comprises pressing plate (4) further, with the circular support plate (9) that diameter is identical with the internal diameter of the big opening end of described conical thin-wall part (A) on described pressing plate (4), and described conical thin-wall part (A) can be fitted on the outer wall of described bullet by described pressing plate (4) and described baffle ring (7).
2. conical thin-wall part school according to claim 1 shape mold, it is characterized in that, the described two ends ejecting screw rod (3) are all provided with external screw thread, described pressing plate (4) and described baffle ring (7) rely on be screwed in described in eject the first nut (5) on the two ends of screw rod (3) and the second nut (6) and described conical thin-wall part (A) be fitted on the outer wall of described bullet.
3. conical thin-wall part school according to claim 2 shape mold, is characterized in that, the tapering of described bullet is 4.05 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510834420.4A CN105344752B (en) | 2015-11-26 | 2015-11-26 | A kind of conical thin-wall part school shape mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510834420.4A CN105344752B (en) | 2015-11-26 | 2015-11-26 | A kind of conical thin-wall part school shape mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105344752A true CN105344752A (en) | 2016-02-24 |
| CN105344752B CN105344752B (en) | 2019-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510834420.4A Active CN105344752B (en) | 2015-11-26 | 2015-11-26 | A kind of conical thin-wall part school shape mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105344752B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112371776A (en) * | 2020-10-22 | 2021-02-19 | 中国航发贵州黎阳航空动力有限公司 | Vacuum thermal sizing die and method for engine support case |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5770026A (en) * | 1980-10-17 | 1982-04-30 | Koyo Seiko Co Ltd | Sizing equipment |
| US4444604A (en) * | 1983-03-07 | 1984-04-24 | United States Steel Corporation | Method of preventing distortion of a heated workpiece during cooling |
| JPH10180356A (en) * | 1996-12-26 | 1998-07-07 | Kawasaki Steel Corp | Roll changing device in roll straightening machine and its method |
| CN2749596Y (en) * | 2004-11-25 | 2006-01-04 | 西北有色金属研究院 | Metal pipe straightening die set |
| US20070039366A1 (en) * | 2005-05-30 | 2007-02-22 | Mt Aerospace Ag | Method and device for forming an essentially flat metal blank to produce a thin-walled, shell-type body, and the use of same |
| CN101709357A (en) * | 2009-12-18 | 2010-05-19 | 江南机器（集团）有限公司 | Tempering adjusting device of thin-walled cylinder body |
| CN203541248U (en) * | 2013-09-07 | 2014-04-16 | 内蒙古航天红岗机械有限公司 | Conical thermal-expansion correcting fixture |
| CN104416057A (en) * | 2013-09-07 | 2015-03-18 | 内蒙古航天红岗机械有限公司 | Tapered thermal expansion reshaping mould |
| CN205146942U (en) * | 2015-11-26 | 2016-04-13 | 西安远航真空钎焊技术有限公司 | Toper thin wall part is with school mould that appears |
-
2015
- 2015-11-26 CN CN201510834420.4A patent/CN105344752B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5770026A (en) * | 1980-10-17 | 1982-04-30 | Koyo Seiko Co Ltd | Sizing equipment |
| US4444604A (en) * | 1983-03-07 | 1984-04-24 | United States Steel Corporation | Method of preventing distortion of a heated workpiece during cooling |
| JPH10180356A (en) * | 1996-12-26 | 1998-07-07 | Kawasaki Steel Corp | Roll changing device in roll straightening machine and its method |
| CN2749596Y (en) * | 2004-11-25 | 2006-01-04 | 西北有色金属研究院 | Metal pipe straightening die set |
| US20070039366A1 (en) * | 2005-05-30 | 2007-02-22 | Mt Aerospace Ag | Method and device for forming an essentially flat metal blank to produce a thin-walled, shell-type body, and the use of same |
| CN101709357A (en) * | 2009-12-18 | 2010-05-19 | 江南机器（集团）有限公司 | Tempering adjusting device of thin-walled cylinder body |
| CN203541248U (en) * | 2013-09-07 | 2014-04-16 | 内蒙古航天红岗机械有限公司 | Conical thermal-expansion correcting fixture |
| CN104416057A (en) * | 2013-09-07 | 2015-03-18 | 内蒙古航天红岗机械有限公司 | Tapered thermal expansion reshaping mould |
| CN205146942U (en) * | 2015-11-26 | 2016-04-13 | 西安远航真空钎焊技术有限公司 | Toper thin wall part is with school mould that appears |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112371776A (en) * | 2020-10-22 | 2021-02-19 | 中国航发贵州黎阳航空动力有限公司 | Vacuum thermal sizing die and method for engine support case |
| CN112371776B (en) * | 2020-10-22 | 2023-03-24 | 中国航发贵州黎阳航空动力有限公司 | Vacuum thermal sizing die and method for engine support case |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105344752B (en) | 2019-07-02 |
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