CN207787471U - A kind of U-shaped heavy forging Bending Mould - Google Patents
A kind of U-shaped heavy forging Bending Mould Download PDFInfo
- Publication number
- CN207787471U CN207787471U CN201721930285.4U CN201721930285U CN207787471U CN 207787471 U CN207787471 U CN 207787471U CN 201721930285 U CN201721930285 U CN 201721930285U CN 207787471 U CN207787471 U CN 207787471U
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- China
- Prior art keywords
- roll shaft
- bending
- horizontal
- forging
- back pressure
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Abstract
The utility model discloses a kind of U-shaped heavy forging Bending Moulds, it is characterised in that including punch-pin, horizontal roll shaft, back pressure mould, cavity plate, cavity plate entrance roll shaft, roll shaft positioning plate, guide groove, bending guide plate, vertical hydraulic cylinder and two horizontal hydraulic cylinders；Horizontal roll shaft working face on cavity plate is symmetrically arranged, and is driven by horizontal hydraulic cylinder, can in the guide groove of roll shaft positioning plate synchronizing moving；Bending guide plate is hinged by hinge and back pressure mould, and the locating slot consistent with forging external surface shape is machined on the inside of bending guide plate；Position is consistent among back pressure mould upper surface shape and U-shaped forging, and lower surface is connect with vertical hydraulic cylinder provides constant backpressure.This mold can effectively inhibit the rebound after bending of U-shaped forging, improve curved shape precision.
Description
Technical field
The utility model is related to a kind of machined dies, more particularly to one kind to add for carrying out bending to U-shaped heavy forging
The Bending Mould of work.
Background technology
Curved super-long structure is still a great problem for restricting the bending production of high quality heavy forging.If bending process and plus
Tool and mould selection is improper, easily causes bend arm symmetry poor, is acutely sprung back after bending, the unstable problem of form accuracy.It is main
Flow Technique using common apparatus or special bender be further added by after preform the method for a time cold heat correcting process come gram
This technical barrier is taken, causes process route tediously long, production cost is greatly improved.
Therefore, to those skilled in the art, exploitation one kind can be realized disposable curved on general forging equipment
Bent and correction U-shaped heavy forging mould structure, to significantly reduce production cost, Improving The Quality of Products is very necessary.
Invention content
In view of this, the purpose of this utility model is to provide a kind of U-shaped heavy forging that can implement on general forging equipment
Bending mould, being sprung back to overcome bend arm symmetry existing in the prior art poor, after bending leads to forging form accuracy
The problem of difference.
The purpose of this utility model is achieved through the following technical solutions：
A kind of U-shaped forging bending mould, it is characterised in that：Including bending punch, horizontal roll shaft, back pressure mould, cavity plate, cavity plate
Entrance roll shaft, roll shaft positioning plate, guide groove, bending guide plate, vertical hydraulic cylinder and horizontal hydraulic cylinder；The horizontal roll shaft is in cavity plate
Upper working face is symmetrically arranged, and is driven by horizontal hydraulic cylinder, can in the guide groove of roll shaft positioning plate synchronizing moving；Folding
Curved guide plate is hinged by hinge and back pressure mould, and the locating slot consistent with forging external surface shape is machined on the inside of bending guide plate；The back of the body
Position is consistent among pressing mold upper surface shape and U-shaped forging, and lower surface is connect with vertical hydraulic cylinder provides constant backpressure.
Further, horizontal roll shaft is in that guide groove outer dead point is stationary, and bending guide plate is with horizontal roll shaft when bending starts
Forging flexural deformation is driven for fulcrum；It is carried out with bending process, when bending guide plate contacts cavity plate entrance roll shaft, horizontal roll shaft is opened
Begin to move towards the horizontal direction of back pressure mould, movement speed is with bending guide plate with the speeds match of punch-pin downlink；Work as horizontal roll shaft
It is moved horizontally to static when the surface of cavity plate entrance roll shaft, after being bent pushing process, is re-directed towards the water of back pressure mould
Square to mobile 0.5-2.0mm；Last forging completes depanning and shaping, subsequent water under the promotion of back pressure mould by horizontal roll shaft
The backhaul under horizontal hydraulic cylinder traction of plain-barreled roll axis.
Further, the horizontal roll shaft is identical with cavity plate entrance roll shaft working diameter, diameter range 60-100mm.
Further, it is provided with the guide groove moved for horizontal roll shaft on the roll shaft positioning plate.
The beneficial effects of the utility model：
(1) service life of cavity plate entrance roll shaft greatly improves.The utility model, which uses, has horizontally movable level
Roll shaft can share single roll shaft or pressure that die entrance structure is born in bending process as single fulcrum, greatly slow down
Wear out failure.
(2) form accuracy of forging bend arm is effectively improved.Under the prior art, bend arm local deformation is serious, and bending is unloaded
The irregular rebound of both arms after load causes bending subtended angle overproof.This technology is pushed using horizontally movable horizontal roll shaft in bending
After reduce die clearance, the compensation shaping of mold process is realized out by small―gap suture die orifice, will bending and reforming process one
Secondary completion.
Description of the drawings
Fig. 1 is used the structural schematic diagram of device by the utility model, is forging in figure in bending carries out.
Fig. 2 is bending guide plate and forging positional structure schematic diagram.
Specific implementation mode
For the clearer operation principle for illustrating the utility model, uses railway van coupler yoke forge piece to be used as below and show
Example forging, and the utility model is described in further detail in conjunction with Figure of description.Herein it should be strongly noted that hook
Tail frame is a kind of important part of railway freight-car, is typical U-frame structure, the implementation particularly suitable for the utility model.
The utility model realizes railway freight car coupler tail in the specific implementation, by Fig. 1, primary structure device shown in Fig. 2
The brake forming of frame forging 12 is mainly characterized by including punch-pin 1, horizontal roll shaft 2, back pressure mould 6, cavity plate 4, cavity plate entrance roll shaft
8, roll shaft positioning plate 7, guide groove 10, bending guide plate 11, vertical hydraulic cylinder 5 and horizontal hydraulic cylinder 3,9；The horizontal roll shaft 2 exists
Working face is symmetrically arranged on cavity plate, and is driven by horizontal hydraulic cylinder 3,9, can be in the guide groove 10 of roll shaft positioning plate 7
Synchronizing moving；Bending guide plate 11 is hinged by hinge and back pressure mould 6, and 11 inside of bending guide plate is machined with and 12 outer surface shape of forging
The consistent locating slot 13 of shape；Position is consistent among 6 upper surface shape of back pressure mould and U-shaped forging, and lower surface connects with vertical hydraulic cylinder 5
Offer constant backpressure is provided.
Horizontal roll shaft 2 is in that 10 outer dead point of guide groove is stationary, and bending guide plate 11 is with horizontal roll shaft 2 when bending starts
Fulcrum drives 12 flexural deformation of forging；It is carried out with bending process, when bending guide plate 11 contacts cavity plate entrance roll shaft 8, horizontal roller
Axis 2 moves under the driving of horizontal hydraulic cylinder 3,9 initially towards the horizontal direction of back pressure mould 6, movement speed and bending guide plate 11
With the speeds match of 1 downlink of punch-pin；Stop horizontal direction when horizontal roll shaft 2 is moved horizontally to cavity plate entrance 8 surface of roll shaft
Movement is re-directed towards the horizontal direction movement 2.0mm of back pressure mould 6 after being bent pushing process；Last forging is in back pressure mould
Depanning and shaping, the backhaul under the traction of horizontal hydraulic cylinder 3,9 of subsequent horizontal roll shaft 2 are completed by horizontal roll shaft 2 under 6 promotion.
It is further improved as to above-described embodiment, is provided on the roll shaft positioning plate 7 and to be moved for horizontal roll shaft
Guide groove 10, total length 300mm.
It is further improved as to above-described embodiment, 8 working diameter phase of the horizontal roll shaft 2 and cavity plate entrance roll shaft
Together, it is 80mm.
Finally illustrating, above example is only used for being illustrated more clearly that the operation principle of the utility model and process,
Limitation is not generated to the utility model.The utility model can be applicable to the heavy forging of processing other shapes, and processing is former
Reason has no difference with examples detailed above, therefore is not required to repeat to illustrate.The utility model makes the prior art in the place of creative contribution,
It is to propose a kind of New-Type U forging Bending Mould, overcomes bend arm symmetry existing in the prior art poor, is returned after bending
Bullet leads to the problem of forging form accuracy difference.
Claims (3)
1. a kind of U-shaped heavy forging Bending Mould, it is characterised in that：Including punch-pin, horizontal roll shaft, back pressure mould, cavity plate, cavity plate entrance
Roll shaft, roll shaft positioning plate, guide groove, bending guide plate, vertical hydraulic cylinder and two horizontal hydraulic cylinders；The horizontal roll shaft is in cavity plate
Upper working face is symmetrically arranged, and is driven by horizontal hydraulic cylinder, can in the guide groove of roll shaft positioning plate synchronizing moving；Folding
Curved guide plate is hinged by hinge and back pressure mould, and the locating slot consistent with forging external surface shape is machined on the inside of bending guide plate；The back of the body
Position is consistent among pressing mold upper surface shape and U-shaped forging, and lower surface is connect with vertical hydraulic cylinder provides constant backpressure.
2. a kind of U-shaped heavy forging Bending Mould as described in claim 1, it is characterised in that：When bending starts at horizontal roll shaft
Stationary in guide groove outer dead point, bending guide plate drives forging flexural deformation by fulcrum of horizontal roll shaft；With bending process into
Row, when bending guide plate contacts cavity plate entrance roll shaft, horizontal roll shaft is moved initially towards the horizontal direction of back pressure mould, movement speed
With bending guide plate with the speeds match of punch-pin downlink；It is static when horizontal roll shaft is moved horizontally to right over cavity plate entrance roll shaft,
After being bent pushing process, it is re-directed towards the horizontal direction movement 0.5-2.0mm of back pressure mould；Last forging is in back pressure mould
It pushes lower by horizontal roll shaft completion depanning and shaping.
3. a kind of U-shaped heavy forging Bending Mould as described in claim 1, it is characterised in that：The horizontal roll shaft and cavity plate enter
Mouth roll shaft working diameter is identical, diameter range 60-100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721930285.4U CN207787471U (en) | 2017-12-29 | 2017-12-29 | A kind of U-shaped heavy forging Bending Mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721930285.4U CN207787471U (en) | 2017-12-29 | 2017-12-29 | A kind of U-shaped heavy forging Bending Mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207787471U true CN207787471U (en) | 2018-08-31 |
Family
ID=63277199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721930285.4U Expired - Fee Related CN207787471U (en) | 2017-12-29 | 2017-12-29 | A kind of U-shaped heavy forging Bending Mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207787471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513833A (en) * | 2019-01-03 | 2019-03-26 | 辽宁工程技术大学 | A kind of production mold of turnover plate type folding rib pipe energy absorbing members |
| CN112588904A (en) * | 2020-11-27 | 2021-04-02 | 贵州航天新力科技有限公司 | Forge piece bending die and bending process |
-
2017
- 2017-12-29 CN CN201721930285.4U patent/CN207787471U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513833A (en) * | 2019-01-03 | 2019-03-26 | 辽宁工程技术大学 | A kind of production mold of turnover plate type folding rib pipe energy absorbing members |
| CN109513833B (en) * | 2019-01-03 | 2024-05-24 | 辽宁工程技术大学 | Manufacturing die of energy-absorbing component of turning plate type folded edge pipe |
| CN112588904A (en) * | 2020-11-27 | 2021-04-02 | 贵州航天新力科技有限公司 | Forge piece bending die and bending process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 Termination date: 20181229 |