CN203426273U - Novel springback-prevention bending die - Google Patents
Novel springback-prevention bending die Download PDFInfo
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- CN203426273U CN203426273U CN201320487823.2U CN201320487823U CN203426273U CN 203426273 U CN203426273 U CN 203426273U CN 201320487823 U CN201320487823 U CN 201320487823U CN 203426273 U CN203426273 U CN 203426273U
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- die
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- movable block
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Abstract
The utility model discloses a novel springback-prevention bending die, comprising an upper die seat, a lower die seat, a shank, a male die and a female die, wherein fiberglass anticorrosive coatings are respectively arranged on the surfaces of the upper die seat and the lower die seat; the male die is arranged at the lower surface of the upper die seat; the female die consists of two symmetrical female die blocks; each female die block consists of a fixed block and a movable block; the fixed blocks are fixedly connected to the upper surface of the lower die seat by mounting plates; the movable blocks are connected with the fixed blocks and are capable of moving relative to the fixed blocks along the horizontal direction; rubber cushions are arranged between the fixed blocks and the movable blocks; a top plate is arranged between the two female die blocks; a positioning pin is detachably connected to the top plate; a blind hole matched with the positioning pin is formed in the lower surface of the male die. By using the novel springback-prevention bending die, the springback of a bending piece is effectively reduced, the size precision of the bending piece is ensured, and the rejection rate is reduced.
Description
Technical field
The utility model belongs to metal manufacture field, is specifically related to a kind of novel anti-rebound bending die.
Background technology
Crooked part is one of punching parts that during Modern Industry Products, automobile, electrical equipment, instrument and instrument are manufactured, quantity is maximum.Crooked part major part adopts bending die to process, existing bending die comprises punch and the die of steel, and punch is descending under the drive of forcing press, and workpiece completes brake forming under the acting in conjunction of punch and die, while using bending die to carry out brake forming, the play-plastic deformation who produces in the fillet district of bool, bool is after leaving bending die, and strain is recovered, make bool produce resilience, affect the geomery of bool, even produce waste product, caused waste.
Summary of the invention
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and a kind of novel anti-rebound bending die is provided, and can effectively reduce the resilience of bool, has guaranteed the dimensional accuracy of bool, has reduced percent defective.
The technical scheme that the utility model adopts is: a kind of novel anti-rebound bending die, comprise upper bolster, die shoe, die shank, punch and die, described upper bolster and die shoe surface are respectively arranged with Corrosion Protection of Fiber Reinforced Plastics layer, punch is arranged at upper bolster lower surface, die is comprised of two symmetrically arranged die pieces, described die piece is comprised of fixed block and movable block, fixed block is fixedly connected on die shoe upper surface by installing plate, movable block is connected with fixed block, and can relative to fixed block, move by along continuous straight runs, between fixed block and movable block, be provided with rubber blanket, between two die pieces, be provided with top board, on top board, be removably connected with alignment pin, punch lower surface has the blind hole coordinating with alignment pin.
As preferably, described movable block is connected with fixed block by screw, and on fixed block, along continuous straight runs has through hole, and screw is connected with movable block through through hole, screw and fixed block matched in clearance.
As preferably, between punch and upper bolster, be provided with backing plate, punch is fixedly connected on backing plate lower surface by punch retainer, and described rubber blanket adopts polyurethane rubber to make.
The beneficial effects of the utility model are: die of the present utility model is comprised of two symmetrically arranged die pieces, die piece is comprised of fixed block and movable block, movable block can move relative to fixed block by along continuous straight runs, between movable block and fixed block, be provided with rubber blanket, when brake forming, movable block is under the effect of rubber blanket reaction force, the flexural deformation of bool is produced to strengthening, make bool overbending, after like this bool being taken out from bending die, the elastic recoil of curvature portion material has compensated the resilience of bool two sidewalls, guaranteed the precision of bool, reduced percent defective, alignment pin and blind hole facilitate porose workpiece to locate when moulding, improved the precision of product.Fixed block is fixedly connected on die shoe upper surface by installing plate, easy for installation, upper bolster and die shoe surface are respectively arranged with Corrosion Protection of Fiber Reinforced Plastics layer, have improved antiseptic property of the present utility model, extend service life of the present utility model, there is good practicality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, die shoe; 2, fixed block; 3, screw; 4, alignment pin; 5, blind hole; 6, backing plate; 7, upper bolster; 8, die shank; 9, punch retainer; 10, punch; 11, movable block; 12, top board; 13, rubber blanket; 14, installing plate.
The specific embodiment
Below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in further detail.
As shown in Figure 1, a kind of novel anti-rebound bending die, comprises upper bolster 7, die shoe 1, die shank 8, punch 10 and die, and as preferably, upper bolster 7 and die shoe 1 adopt Q235 steel to make, good combination property, long service life.Described upper bolster 7 and die shoe 1 surface are respectively arranged with Corrosion Protection of Fiber Reinforced Plastics layer, have improved antiseptic property of the present utility model, have extended service life of the present utility model.Die shank 8 presses fit in upper bolster 7.Punch 10 is arranged at upper bolster 7 lower surfaces, die is comprised of two symmetrically arranged die pieces, described die piece is comprised of fixed block 2 and movable block 11, fixed block 2 is fixedly connected on die shoe 1 upper surface by installing plate 14, easy for installation, as preferably, described installing plate 14 is arranged at fixed block 2 away from the sidewall of movable block 11, movable block 11 is connected with fixed block 2, and can relative to fixed block 2, move by along continuous straight runs, between fixed block 2 and movable block 11, is provided with rubber blanket 13.Between two die pieces, be provided with top board 12, be removably connected with alignment pin 4 on top board 12, punch 10 lower surfaces have the blind hole 5 coordinating with alignment pin 4, and alignment pin 4 and blind hole 5 facilitate porose workpiece to locate when moulding.
In the present embodiment, as preferably, described movable block 11 is connected with fixed block 2 by screw 3, and on fixed block 2, along continuous straight runs has through hole, and screw 3 passes through hole and is connected with movable block 11, screw 3 and fixed block 2 matched in clearance.In the present embodiment, as preferably, die shoe 1 upper surface has chute, and movable block 11 is slidably connected in chute.
In the present embodiment, as preferably, between punch 10 and upper bolster 7, be provided with backing plate 6, punch 10 is fixedly connected on backing plate 6 lower surfaces by punch retainer 9, and the impact to upper bolster 7 when backing plate 6 can prevent punching press has extended service life of the present utility model.Described rubber blanket 13 adopts polyurethane rubber to make, and elasticity and wearability are good, long service life.
The above, it is only the utility model preferred embodiment, therefore can not limit the scope that the utility model is implemented with this, the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (3)
1. a novel anti-rebound bending die, comprise upper bolster, die shoe, die shank, punch and die, it is characterized in that: described upper bolster and die shoe surface are respectively arranged with Corrosion Protection of Fiber Reinforced Plastics layer, punch is arranged at upper bolster lower surface, die is comprised of two symmetrically arranged die pieces, described die piece is comprised of fixed block and movable block, fixed block is fixedly connected on die shoe upper surface by installing plate, movable block is connected with fixed block, and can relative to fixed block, move by along continuous straight runs, between fixed block and movable block, be provided with rubber blanket, between two die pieces, be provided with top board, on top board, be removably connected with alignment pin, punch lower surface has the blind hole coordinating with alignment pin.
2. novel anti-rebound bending die according to claim 1, is characterized in that: described movable block is connected with fixed block by screw, and on fixed block, along continuous straight runs has through hole, and screw is connected with movable block through through hole, screw and fixed block matched in clearance.
3. novel anti-rebound bending die according to claim 1 and 2, is characterized in that: between punch and upper bolster, be provided with backing plate, punch is fixedly connected on backing plate lower surface by punch retainer, and described rubber blanket adopts polyurethane rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320487823.2U CN203426273U (en) | 2013-08-12 | 2013-08-12 | Novel springback-prevention bending die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320487823.2U CN203426273U (en) | 2013-08-12 | 2013-08-12 | Novel springback-prevention bending die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203426273U true CN203426273U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320487823.2U Expired - Fee Related CN203426273U (en) | 2013-08-12 | 2013-08-12 | Novel springback-prevention bending die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203426273U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138618A (en) * | 2017-06-27 | 2017-09-08 | 昆山申凌精密金属工业有限公司 | A kind of punch and matrix gap adjusting structure |
| CN108995291A (en) * | 2018-05-30 | 2018-12-14 | 旌德县华丰电子元件有限公司 | A kind of machining pedestal positioning mold |
| CN112916672A (en) * | 2021-01-21 | 2021-06-08 | 武汉轻工大学 | Bending die |
-
2013
- 2013-08-12 CN CN201320487823.2U patent/CN203426273U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138618A (en) * | 2017-06-27 | 2017-09-08 | 昆山申凌精密金属工业有限公司 | A kind of punch and matrix gap adjusting structure |
| CN108995291A (en) * | 2018-05-30 | 2018-12-14 | 旌德县华丰电子元件有限公司 | A kind of machining pedestal positioning mold |
| CN112916672A (en) * | 2021-01-21 | 2021-06-08 | 武汉轻工大学 | Bending die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20140812 |
|
| EXPY | Termination of patent right or utility model |