CN207222669U - A kind of bellows with straight section clamping device has capsule shaping dies - Google Patents
A kind of bellows with straight section clamping device has capsule shaping dies Download PDFInfo
- Publication number
- CN207222669U CN207222669U CN201720983641.2U CN201720983641U CN207222669U CN 207222669 U CN207222669 U CN 207222669U CN 201720983641 U CN201720983641 U CN 201720983641U CN 207222669 U CN207222669 U CN 207222669U
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- CN
- China
- Prior art keywords
- straight section
- clamping device
- pipe
- bellows
- curved bar
- 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.)
- Withdrawn - After Issue
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- Moulds For Moulding Plastics Or The Like (AREA)
- Diaphragms And Bellows (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
A kind of bellows with straight section clamping device has capsule shaping dies, including die cap, the clamping device for matching and being clamped with the straight section of pipe is fixed with towards the one side in pipe in die cap, the clamping device includes rotary drive mechanism, multiple linkages and multiple collets, multiple linkages are fixedly connected with rotary drive mechanism, multiple linkages are radial in the plane perpendicular with the drive shaft of rotary drive mechanism, collet is connected with linkage, pass through the forward or reverse of rotary drive mechanism, collet is promoted to compress or loosen the straight section of pipe.Utilize corresponding clamping device, larger clamping force is provided pipe straight section, increases the circumferential deformation of straight section, and then increase the frictional force of straight section and die inside wall, effectively overcome the power F that pipe is produced by axial plastic deformation, prevent straight section from being extracted out in forming process from mould.
Description
Technical field
The utility model belongs to metal bellows hydraulic forming mold technical field, is related to a kind of band straight section clamping device
Bellows have capsule shaping dies.
Background technology
Metal bellows hydroforming process is divided into prima bulging stage and molding shaping stage, in the prima bulging stage,
Bellows shaping dies position remains unchanged, and by increasing the hydroforming pressure in bellows pipe, forces bellows pipe
（Cylinder pattern）It is plastically deformed along cylinder circumferential and axial, forms prima.Mould pattern such as Fig. 1 of existing forming mode,
Shown in Fig. 2, in bellows forming process, straight section produces circumferential deformation by internal pressure, is tightly bonded, passes through with die cap madial wall
Mould action keeps fixing in the frictional force f on straight section.The length for depending mainly on the size of straight section of the power.When shaping is pressed
During power increase, bellows straight edge length also should suitably increase to improve frictional force f, prevent pipe from being produced because of axial plastic deformation
Power F straight section can be extracted out from die cap.For heavy wall bellows, straight section passes through increase because interior compressive strain is smaller
The effect that the mode of straight edge length increases frictional force f is limited, and the trend that straight section is extracted out from die cap is difficult to effectively overcome, most
Shaping can be caused to fail eventually.
Utility model content
In order to solve the above technical problems, the utility model, which provides a kind of bellows with straight section clamping device, capsule shaping
Mould, using corresponding clamping device, provides pipe straight section larger clamping force, increases the circumferential deformation of straight section, into
And increasing the frictional force of straight section and die inside wall, the power F for effectively overcoming pipe to be produced by axial plastic deformation prevents straight flange
Section is extracted out in forming process from mould.
To realize above-mentioned technical purpose, used technical solution is：A kind of bellows with straight section clamping device has
Capsule shaping dies, including die cap, are fixed with towards the one side in pipe in die cap and match with the straight section of pipe and carry out
The clamping device of clamping, the clamping device include rotary drive mechanism, multiple linkages and multiple collets, rotation driving
The drive shaft of mechanism is overlapped with the center line of the straight section of pipe, and multiple linkages are fixedly connected with rotary drive mechanism,
Multiple linkages are radial in the plane perpendicular with the drive shaft of rotary drive mechanism, the linkage by
Curved bar one and curved bar two form, and one end of curved bar two is fixedly connected with the drive shaft of rotary drive mechanism, two other end of curved bar with
One end of curved bar one is hinged, and collet is hinged with the other end of curved bar one, and the total length of linkage of the collet with being unfolded is more than
Or the radius size of the straight section equal to pipe, by the forward or reverse of rotary drive mechanism, collet is promoted to the straight of pipe
Side section is compressed or loosened.
The outer that the lower section of clamping device described in the utility model is equipped with inner cover plate radially offers multiple guide grooves,
Guide rod is equipped with guide groove, one end of guide rod is connected with curved bar one, and the other end of guide rod is penetrated in guide groove.
The curved bar one is hinged by axis pin two with collet, and one end of axis pin two is connected with curved bar one, axis pin two it is another
One end penetrates in guide groove and is connected after guide groove stretching with collet.
Multiple linkages are connected in homogeneous radiation shape with rotary drive mechanism.
The collet described in the utility model face opposite with the straight section of pipe is arc surface.
Die cap described in the utility model is upper mould cover or lower die cap.
The utility model beneficial effect is：The movement of collet is driven by the rotation of rotary drive mechanism, realizes mould pair
The clamping function of bellows pipe straight section, provides straight section sufficient clamping force, increases the circumferential deformation of straight section, and then
Increase the frictional force of straight section and die inside wall, the power F for overcoming pipe to be produced by axial plastic deformation, has effectively prevented straight flange
The problem of section is extracted out in forming process from mould, reduces shaping mortality.
Brief description of the drawings
The mould pattern structure diagram of the existing bellows forming modes of Fig. 1；
Fig. 2 is the mould pattern straight section stress sketch of existing bellows forming mode；
Fig. 3 is the structure diagram of the utility model clamping device；
Fig. 4 is the overlooking the structure diagram of the utility model clamping device；
Fig. 5 is the utility model inner cover plate structure schematic diagram；
Fig. 6 is the structure diagram of the utility model；
Fig. 7 is the corrugated pipe forming structure diagram of the utility model；
In figure：1. upper mould cover；2. collet；3. curved bar one；4. axis pin one；5. curved bar two；6. inner cover plate；7. turntable；On 8.
Cover board；9. rotary drive structure；10. support column；11. axis pin two；12. inlet and outlet of fuel channel；13. hydraulic power unit；14. pipe；
Matrix in 15.；16. lip block；17. clamping device；18. guide groove；19. lower die cap.
Embodiment
As shown in figure 3, a kind of bellows with straight section clamping device has capsule shaping dies, including die cap, in die cap court
One side into pipe 14 is fixed with the clamping device 17 for matching and being clamped with the straight section of pipe 14, the folder
Tight device 17 includes rotary drive mechanism 9, multiple linkages and multiple collets 2.Rotary drive mechanism 9 provides rotary power,
Rotary actuator can be used, rotary actuator is connected by inlet and outlet of fuel channel 12 with hydraulic power unit 13.
Die cap is used to provide support to pipe straight section and bellows end ripple in bellows forming process, form bellows into
Upper mould cover 1, the lower die cap 19 of shape；Die cap, inner cover plate 6 and upper cover plate 8 form the shell of straight section clamping device, are used inside die cap
In the associated components for placing clamping device；Upper cover plate 8 can be opened, and a whole set of clamping device is taken out.
The drive shaft of rotary drive mechanism 9 is overlapped with the center line of the straight section of pipe 14, solid on rotary drive mechanism 9
Surely multiple linkages are connected, multiple linkages are radial to be in and perpendicular flat of the drive shaft of rotary drive mechanism 9
In face, the expansion and contraction of linkage are carried out in the plane perpendicular with the drive shaft of rotary drive mechanism 9, described
Linkage is made of curved bar 1 and curved bar 25, and one end of curved bar 25 is fixedly connected with the drive shaft of rotary drive mechanism 9,
25 other end of curved bar and one end of curved bar 1 are hinged, and the hinged free degree of curved bar 25 and curved bar 1 is not easy excessive, freedom
Degree is slightly larger than or equal to 180 °, and curved bar two is hinged with curved bar 1 by axis pin 1, is hinged with the other end of curved bar 1
The total length of collet 2, collet 2 and the linkage of expansion is greater than or equal to the radius size of the straight section of pipe 14, i.e. connecting rod
After mechanism deploying collet 2 can be made to withstand on the inner wall of straight section, by the forward or reverse of rotary drive mechanism 9, drive curved bar
25 rotations, are moved by curved bar 1 and transmitted, and promote collet 2 to die cap madial wall closer or far from and then realizing the mould
The function of clamping and unclamp, promotes collet 2 to compress or loosen the straight section of pipe 14.
As shown in figure 5, the outer that the lower section of clamping device 17 is equipped with inner cover plate 6 radially offers multiple guide grooves 18,
Guide rod is equipped with guide groove 18, one end of guide rod is connected with curved bar 1, and the other end of guide rod penetrates guide groove 18
It is interior, guide rod is moved in guide groove 18 by expansion and the closure of linkage, that is, being oriented to slot length allows collet 2 along interior
6 radial direction of cover board moves freely in allowed band.
Curved bar 1 is hinged by axis pin 2 11 and collet 2, and one end of axis pin 2 11 is connected with curved bar 1, axis pin 2 11
The other end is penetrated in guide groove 18 and is connected after the stretching of guide groove 18 with collet 2.Axis pin 2 11 perpendicular to curved bar 1, and with pendulum
Dynamic motor axis are parallel, and collet 6 is located at the lower section of inner cover plate 6.
As shown in figure 4, multiple linkages are connected in homogeneous radiation shape with rotary drive mechanism 9.
The collet 2 face opposite with the straight section of pipe 14 is arc surface, and collet shapes approximation cuboid, ensures
There can be more fitting areas in clamping process with pipe, arc surface is designed with certain roughness requirement.
As shown in Figure 6,7, it is formed using a kind of bellows shaping dies with straight section clamping device, forming process
It is as follows：
A. bellows pipe mould is carried out to be loaded.Hydraulic power unit 13 is started, rotary actuator rotation is promoted, pulls collet
Moved after 2（Away from 1 die cap madial wall direction）, pipe 14 is put between collet 2 and die cap side wall, is put into utricule in pipe,
There is liquid in utricule, there is provided hydroforming pressure, treat middle matrix 15 have good positioning and then it is secondary start hydraulic power unit 13,
Rotary actuator rotation is promoted, pulls collet 2 to move forward（Close to 1 die cap madial wall direction）, clamp pipe.
B carries out prima bulging using utricule bellows and molding shapes, and after the completion for the treatment of bellows shaping, starts hydraulic power
Device 13, promotes rotary actuator rotation, is moved after pulling collet 2（Away from 1 die cap madial wall direction）, bellows straight section is unclamped,
Bellows is taken out, shaping is completed.
Claims (6)
1. a kind of bellows with straight section clamping device has capsule shaping dies, it is characterised in that：Including die cap, in die cap direction
Pipe（14）Interior one side is fixed with and pipe（14）The straight section clamping device that matches and be clamped（17）, it is described
Clamping device（17）Including rotary drive mechanism（9）, multiple linkages and multiple collets（2）, rotary drive mechanism（9）'s
Drive shaft and pipe（14）Straight section center line overlap, in rotary drive mechanism（9）On be fixedly connected with multiple linkages,
Multiple linkages are radial to be in and rotary drive mechanism（9）The perpendicular plane of drive shaft in, the connecting rod machine
Structure is by curved bar one（3）With curved bar two（5）Composition, curved bar two（5）One end and rotary drive mechanism（9）Drive shaft fix connect
Connect, curved bar two（5）The other end and curved bar one（3）One end be hinged, curved bar one（3）The other end on be hinged with collet（2）, collet
（2）It is greater than or equal to pipe with the total length of the linkage of expansion（14）Straight section radius size, pass through rotation driving
Mechanism（9）Forward or reverse, promote collet（2）To pipe（14）Straight section compressed or loosened.
2. a kind of bellows with straight section clamping device as claimed in claim 1 has capsule shaping dies, it is characterised in that：Institute
The clamping device stated（17）Lower section be equipped with inner cover plate（6）Outer radially offer multiple guide grooves（18）, in guide groove
（18）It is interior to be equipped with guide rod, one end and the curved bar one of guide rod（3）Connection, the other end of guide rod penetrate guide groove（18）It is interior.
3. a kind of bellows with straight section clamping device as claimed in claim 2 has capsule shaping dies, it is characterised in that：Institute
The curved bar one stated（3）Pass through axis pin two（11）With collet（2）It is hinged, axis pin two（11）One end and curved bar one（3）Connection, axis pin
Two（11）The other end penetrate guide groove（18）It is interior from guide groove（18）After stretching with collet（2）Connection.
4. a kind of bellows with straight section clamping device as claimed in claim 1 has capsule shaping dies, it is characterised in that：It is more
A linkage is in homogeneous radiation shape and rotary drive mechanism（9）Connection.
5. a kind of bellows with straight section clamping device as claimed in claim 1 has capsule shaping dies, it is characterised in that：Institute
The collet stated（2）With pipe（14）The opposite face of straight section be arc surface.
6. a kind of bellows with straight section clamping device as claimed in claim 1 has capsule shaping dies, it is characterised in that：Institute
The die cap stated is upper mould cover（1）Or lower die cap（19）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720983641.2U CN207222669U (en) | 2017-08-08 | 2017-08-08 | A kind of bellows with straight section clamping device has capsule shaping dies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720983641.2U CN207222669U (en) | 2017-08-08 | 2017-08-08 | A kind of bellows with straight section clamping device has capsule shaping dies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207222669U true CN207222669U (en) | 2018-04-13 |
Family
ID=61856644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720983641.2U Withdrawn - After Issue CN207222669U (en) | 2017-08-08 | 2017-08-08 | A kind of bellows with straight section clamping device has capsule shaping dies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207222669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107413915A (en) * | 2017-08-08 | 2017-12-01 | 洛阳双瑞特种装备有限公司 | A kind of bellows with straight section clamping device has capsule shaping dies |
-
2017
- 2017-08-08 CN CN201720983641.2U patent/CN207222669U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107413915A (en) * | 2017-08-08 | 2017-12-01 | 洛阳双瑞特种装备有限公司 | A kind of bellows with straight section clamping device has capsule shaping dies |
| CN107413915B (en) * | 2017-08-08 | 2023-05-02 | 中船双瑞(洛阳)特种装备股份有限公司 | Bellows with bag forming die with straight-edge section clamping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180413 Effective date of abandoning: 20230502 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180413 Effective date of abandoning: 20230502 |