CN109201830A - A method of prevent coupling barrel process from flange defect occur - Google Patents
A method of prevent coupling barrel process from flange defect occur Download PDFInfo
- Publication number
- CN109201830A CN109201830A CN201710546413.3A CN201710546413A CN109201830A CN 109201830 A CN109201830 A CN 109201830A CN 201710546413 A CN201710546413 A CN 201710546413A CN 109201830 A CN109201830 A CN 109201830A
- Authority
- CN
- China
- Prior art keywords
- blank
- spinning
- cylindrical member
- flange
- coupling barrel
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000007547 defect Effects 0.000 title claims abstract description 27
- 230000008878 coupling Effects 0.000 title claims abstract description 21
- 238000010168 coupling process Methods 0.000 title claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 21
- 238000009987 spinning Methods 0.000 claims abstract description 52
- 238000003825 pressing Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000000452 restraining effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The present invention provides a kind of methods for preventing coupling barrel process from flange defect occur to reserve part blank in the oral area of cylindrical member and be not involved in deformation during the blank to cylindrical member carries out spinning.The present invention is directed to during coupling barrel, the problem of part oral area is easy to appear flange defect, it proposes the axial constraint power for making the region for participating in rotary pressure deformation by two sides in the method that the blank of a small amount of cylindrical member of oral area is not involved in deformation, avoids the occurrence of flange defect.
Description
Technical field
The present invention relates to metal forming technical fields, prevent coupling barrel process from turning over more particularly to one kind
The method of side defect.
Background technique
Spinning is a kind of metal forming method for shaping thin-walled hollow rotary part.It is by works such as spinning rollers
Tool applies pressure to rotary billet, is allowed to generate continuous local plastic deformation and shape.Usually first by metal plate blank
Or preform is clamped on the core model of spinning machine, drives core model and blank to rotate by main shaft, then spinning roller is with certain track
Pressure is applied to blank with rate travel, so that blank is generated continuous, point-by-point plastic deformation, to obtain various shape of generatrix
Hollow rotating body parts.Wherein, shear spinning is the shape for not only changing blank in forming process, size, and significant
The manufacturing process of its wall thickness is thinned.Shear spinning is usually used in the shear spinning of plate blank, the positive spinning with bottomless drum shape blank,
Without the flow forming of bottomless drum shape blank.
To obtain high performance large-size thin-walled cylinder body part, roll bending welding procedure is replaced using reversed rotary pressure technology.Such as Fig. 1
It is shown, for without bottomless drum shape part the high-precision processing of cylinder can be completed, simultaneously because instead using reversed mould pressing
The length of cylinder part can be greater than die length when to spinning, and barrel lenght not limited by die length, use discharge ring
Cylinder can be realized with main axis in straightforward procedure, therefore generallys use reversed spin-on process without the forming of the cylinder at bottom.Reversely
In spin-forming procedure, since only the restraining force by un-deformed area, the other end lack constraint, lead to mouth part oral area material
Portion, which is easy flaring, leads to flange.With the continuation of mould pressing, subsequent blank receiving un-deformed area and deformed region are simultaneously
Constraint, forming process are stably and controllable.
Flange is the thin-wall tube-shaped element spinning process certainty problem, and flange causes part finish dimensional overproof, usually
Using there are enough machining allowance, overproof part is cut off, and flange is an Instability, each parts flanged-edge is to size
The influence of precision is inconsistent, needs to increase the size of machining allowance with this, reduces the stock utilization of mould pressing.
It is shaped by multi-pass spinning, material is rolled repeatedly under conditions of lacking constraint, causes flange serious
Even there is flange, influences the forming of subsequent spinning, can just continue mould pressing after needing to cut off flange position, reduce
Forming efficiency.The material poor for plasticity, the appearance of flange defect easily cause oral area and crack, and lead to the part report
It is useless.
Summary of the invention
For the problem that coupling barrel process, it is easy to appear flange defect in part oral area, the present invention proposes a kind of anti-
Only there is the method for flange defect in coupling barrel process, is not involved in deformation in a small amount of blank of part oral area, makes to participate in spinning
Axial constraint power of the region of deformation by two sides, avoids the occurrence of flange defect.
The present invention provides a kind of methods for preventing coupling barrel process from flange defect occur, in the blank to cylindrical member
During carrying out spinning, part blank is reserved in the oral area of cylindrical member and is not involved in deformation.
Further, reinforcing rib is set on the part blank that the oral area of the cylindrical member is not involved in deformation.
Further, in reversed mould pressing, specific steps are as follows: the position for adjusting spinning roller makes the radial position of spinning roller
Greater than the maximum radius of blank；Spinning roller carries out axial feed, and the distance of one section of setting is moved forward from the processing starting point of blank；
Start main shaft, blank is circumferentially rotated with main shaft, and spinning roller radial feed presses to the amount of feeding to setting；Spinning roller carry out it is axial into
It gives, carries out mould pressing.
Further, during multi-pass spinning shapes, since intermediate a time, the oral area of cylindrical member is reserved
Part blank is not involved in deformation out.
During the present invention is for the problem that coupling barrel, it is easy to appear flange defect in part oral area, is proposed in mouth
The method that a small amount of blank in portion is not involved in deformation makes axial constraint power of the region for participating in rotary pressure deformation by two sides, avoids the occurrence of
Flange defect.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Fig. 1 is the equipment and machining state schematic diagram of the prior art of the present invention；
Fig. 2 is a kind of flow chart of method for preventing coupling barrel process from flange defect occur of the embodiment of the present invention；
Fig. 3 is the dress of the step S10 of method for preventing coupling barrel process from flange defect occur of the embodiment of the present invention a kind of
Standby status diagram；
Fig. 4 is the dress of the step S20 of method for preventing coupling barrel process from flange defect occur of the embodiment of the present invention a kind of
Standby status diagram；
Fig. 5 is the dress of the step S30 of method for preventing coupling barrel process from flange defect occur of the embodiment of the present invention a kind of
Standby status diagram；
Fig. 6 is the dress of the step S40 of method for preventing coupling barrel process from flange defect occur of the embodiment of the present invention a kind of
Standby status diagram；
Fig. 7 is a kind of structural schematic diagram of blank with reinforcing rib of the embodiment of the present invention；
Fig. 8 is that the equipment state of another method for preventing coupling barrel process from flange defect occur of the embodiment of the present invention shows
It is intended to.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The present invention provides a kind of methods for preventing coupling barrel process from flange defect occur, in the blank to cylindrical member
During carrying out spinning, part blank is reserved in the oral area of cylindrical member and is not involved in deformation.In reversed mould pressing, such as scheme
Shown in 2, specific steps are as follows:
Step S10 adjusts the position of spinning roller, is placed in spinning roller except the maximum radius of blank, and equipment state schematic diagram is such as at this time
Shown in Fig. 3.
Step S20, spinning roller carry out axial feed, and the distance of one section of setting is moved forward from the processing starting point of blank, this
When equipment status diagram it is as shown in Figure 4.Since the thickness of blank is thinner, it is more easy to appear the defect of flange, meanwhile, with base
Expect the increase of diameter, itself restraining force of blank is deteriorated.The implementation of this patent can with reference table 1 be arranged spinning roller from starting point forward
Mobile distance can reduce when blank diameter is smaller and wall thickness is larger and even cancel the spinning roller amount of moving down.As table 1 is shown
Spinning roller moves forward the value of distance and the corresponding relationship of blank diameter and blank wall thickness from starting point.
1 spinning roller of table moves forward the value unit of distance: mm from starting point
Note: "/" is not need spinning roller forward movement in table.
Step S30, blank are circumferentially rotated with main shaft, and spinning roller radial feed presses to the amount of feeding to setting, this fashionable dress
Standby status diagram is as shown in Figure 5.
Step S40, spinning roller carry out axial feed, carry out mould pressing, equipment state schematic diagram is as shown in Figure 6 at this time.
In the one aspect of the embodiment of the present invention, as shown in fig. 7, the oral area in the cylindrical member is not involved in the part of deformation
Reinforcing rib is set on blank.During blank base, reinforcing rib is reserved in the open end of blank, the thickness of reinforcing rib can
With reference table 1, the outer diameter of reinforcing rib can be using the maximum gauge after the roughing of looping mill rolling blank.The setting of reinforcing rib can be into one
Step prevents the generation of flange in cylindrical member process.The present invention is suitable for single spinning roller, double rotary wheel, three spinning rollers and more spinning roller spinning
The generation that flange is prevented in forming process, with the increase of spinning roller quantity, cylinder spinning process more tends towards stability, and can subtract therewith
The thickness of small reinforcing rib.
In the one aspect of the embodiment of the present invention, during multi-pass spinning forming, since intermediate a time,
The oral area of cylindrical member reserves part blank and is not involved in deformation.Multi-pass spinning forming process especially thicker in blank wall thickness
In, it can be in the processing of several passages of beginning, spinning roller reduces without forward movement or moving distance, has in this way
Conducive to the utilization rate for improving material.
As shown in figure 8, it may also be possible to apply the invention for the positive spinning process of cylindrical member, with conventional positive spinning process
It has equally completed to revolve and stablize spinning；In the whole rotation of positive spinning, whole cylinder section blanks are not formed,
Cylindrical member oral area reserves part blank and is not involved in deformation, prevents blank flange.
During the present invention is for the problem that coupling barrel, it is easy to appear flange defect in part oral area, is proposed in mouth
The method that a small amount of blank in portion is not involved in deformation makes axial constraint power of the region for participating in rotary pressure deformation by two sides, avoids the occurrence of
Flange defect.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (4)
1. a kind of method for preventing coupling barrel process from flange defect occur, which is characterized in that the blank to cylindrical member into
During row spinning, part blank is reserved in the oral area of cylindrical member and is not involved in deformation.
2. a kind of method for preventing coupling barrel process from flange defect occur as described in claim 1, which is characterized in that
The oral area of the cylindrical member, which is not involved on the part blank of deformation, is arranged reinforcing rib.
3. a kind of method for preventing coupling barrel process from flange defect occur as described in claim 1, which is characterized in that
When reversed mould pressing, specific steps are as follows:
The position for adjusting spinning roller, is placed in spinning roller except the maximum radius of blank；
Spinning roller carries out axial feed, and the distance of one section of setting is moved forward from the processing starting point of blank；
Start main shaft, blank is circumferentially rotated with main shaft, and spinning roller radial feed presses to the amount of feeding to setting；
Spinning roller carries out axial feed, carries out mould pressing.
4. a kind of method for preventing coupling barrel process from flange defect occur as described in claim 1, which is characterized in that
During multi-pass spinning shapes, since intermediate a time, the oral area of cylindrical member reserves part blank and is not involved in change
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546413.3A CN109201830B (en) | 2017-07-06 | 2017-07-06 | A method of preventing flange defect occur without bottomless drum shape part spinning process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546413.3A CN109201830B (en) | 2017-07-06 | 2017-07-06 | A method of preventing flange defect occur without bottomless drum shape part spinning process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109201830A true CN109201830A (en) | 2019-01-15 |
| CN109201830B CN109201830B (en) | 2019-07-09 |
Family
ID=64993611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710546413.3A Active CN109201830B (en) | 2017-07-06 | 2017-07-06 | A method of preventing flange defect occur without bottomless drum shape part spinning process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109201830B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245428A (en) * | 2021-06-21 | 2021-08-13 | 西北工业大学 | Oblique rolling type spinning forming method for cylindrical part with inner ribs |
| CN113617915A (en) * | 2021-07-29 | 2021-11-09 | 西北工业大学 | Local loading integral forming method for special-shaped section rib cylindrical part |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10128459A (en) * | 1996-10-21 | 1998-05-19 | Daido Steel Co Ltd | Backward spining method of ring |
| CN202591339U (en) * | 2012-05-11 | 2012-12-12 | 西北工业大学 | Forward direction spinning pressing ring |
| CN102913688A (en) * | 2012-11-02 | 2013-02-06 | 三一重工股份有限公司 | Delivery pipe, manufacturing method thereof and concrete pumping device |
| EP3006298A1 (en) * | 2014-10-09 | 2016-04-13 | Henschel GmbH | Hollow shaft coupling of a drive of a railway vehicle and method for their preparation |
-
2017
- 2017-07-06 CN CN201710546413.3A patent/CN109201830B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10128459A (en) * | 1996-10-21 | 1998-05-19 | Daido Steel Co Ltd | Backward spining method of ring |
| CN202591339U (en) * | 2012-05-11 | 2012-12-12 | 西北工业大学 | Forward direction spinning pressing ring |
| CN102913688A (en) * | 2012-11-02 | 2013-02-06 | 三一重工股份有限公司 | Delivery pipe, manufacturing method thereof and concrete pumping device |
| EP3006298A1 (en) * | 2014-10-09 | 2016-04-13 | Henschel GmbH | Hollow shaft coupling of a drive of a railway vehicle and method for their preparation |
Non-Patent Citations (1)
| Title |
|---|
| 宋拥政: "《航空航天钣金冲压件制造技术》", 31 October 2013, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245428A (en) * | 2021-06-21 | 2021-08-13 | 西北工业大学 | Oblique rolling type spinning forming method for cylindrical part with inner ribs |
| CN113617915A (en) * | 2021-07-29 | 2021-11-09 | 西北工业大学 | Local loading integral forming method for special-shaped section rib cylindrical part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109201830B (en) | 2019-07-09 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240109 Address after: 264006 No. 18-1 Shuhe Road, Yantai Economic and Technological Development Zone, Shandong Province Patentee after: YANTAI CONGLIN PRECISION MACHINERY Co.,Ltd. Address before: 100024 Beijing city Chaoyang District eight Bridge North East Junzhuang No. 1 Patentee before: AVIC BEIJING AERONAUTICAL MANUFACTURING TECHNOLOGY Research Institute |
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| TR01 | Transfer of patent right |