CN210188163U - Combined drawing and stamping die for improving rigidity of outer covering piece - Google Patents
Combined drawing and stamping die for improving rigidity of outer covering piece Download PDFInfo
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- CN210188163U CN210188163U CN201920649853.6U CN201920649853U CN210188163U CN 210188163 U CN210188163 U CN 210188163U CN 201920649853 U CN201920649853 U CN 201920649853U CN 210188163 U CN210188163 U CN 210188163U
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Abstract
The utility model discloses an improve combination drawing stamping die of outer covering member rigidity, including last mould body and lower mould body and blank holder, be equipped with the terrace die on the lower mould body, go up the mould body and be equipped with the die, the blank holder is the combination blank holder of activity, the combination blank holder is established on the lower mould body, the die includes the combination die of fixed die and activity, and the combination die is located the outside of fixed die, relative setting from top to bottom of combination die and combination blank holder, be equipped with on the combination blank holder and be used for driving the drive plate that the combination die will cover the outside drawing of plate. Under the condition of not increasing the process cost, the combined blank holder and the combined female die are designed, and the pre-drawing and the drawing are completed in a first-order die through the combined movable mechanism in the stamping process, so that two sets of dies are not required to perform drawing operation twice, the production cost is reduced, and the stamping forming efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of stamping forming mould technique and specifically relates to a combination drawing stamping die who improves outer covering piece rigidity is related to.
Background
The working principle of the common drawing die structure is as follows: when the die is closed, the upper die body descends along with the press and contacts with the blank holder to close and press the material, at the moment, the blank holder is driven by the ejector rod of the lower air cushion of the press to press the plate material with the upper die body, and the upper die body contacts with the male die fixed on the lower die body to realize the drawing completion along with the further descending of the press; and in the ascending and die opening stage of the press, the upper die body ascends along with the press sliding block, the lower die body and the male die are not moved, the air ejector rod pushes the blank holder upwards for one stroke, at the moment, the blank is placed on the blank holder, the drawing plate is taken out, and one stamping process is finished.
The mold structure described above, which is common in the mold industry, is satisfactory for general outer cover drawing. For the requirements of a client on the plate drawing edge thinning rate and the requirement which cannot be met when the plate is drawn by the outer covering part with shallow drawing, the problems that secondary drawing needs to be realized, a set of die is added for the secondary drawing, the manufacturing cost is increased, and the production efficiency is low are solved.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide an improve outer covering element rigidity's combination drawing stamping die, it can realize drawing in advance and drawing work accomplishes in an preface mould, need not two sets of moulds twice drawing operation.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the combined drawing and stamping die comprises an upper die body, a lower die body and a blank holder, wherein a male die is arranged on the lower die body, a female die is arranged on the upper die body, the blank holder is a movable combined blank holder, the combined blank holder is arranged on the lower die body, the female die comprises a fixed female die and a movable combined female die, the combined female die is located on the outer side of the fixed female die, the combined female die and the combined blank holder are arranged vertically and oppositely, and a driving plate for driving the combined female die to draw an outer covering plate outwards is arranged on the combined blank holder.
And the lower die body is provided with a driving block for driving the combined blank holder.
The combined female die comprises an upper die movable drawing female die, a safety bolt and a guide sliding plate, and the upper die movable drawing female die is arranged on the upper die body through the safety bolt and the guide sliding plate.
The combined blank holder comprises a blank holder body, a movable blank holder, a movable sliding block and a movable blank holder guide sliding plate, wherein the blank holder body is arranged on the lower mold body through a gas ejector rod, the movable blank holder is arranged on the blank holder body through the movable blank holder guide sliding plate, and the movable sliding block is arranged on the movable blank holder and corresponds to the driving block.
And the upper die body is provided with a movable female die limiting block for limiting the movable drawing female die of the upper die.
And a movable female die nitrogen spring for resetting the upper die movable drawing female die is arranged on the outer side of the upper die movable drawing female die on the upper die body.
The driving plate is arranged on the movable blank holder.
Compared with the prior art, the utility model, have following advantage:
the combined drawing and stamping die for improving the rigidity of the outer covering part is reasonable in design, under the condition that the process cost is not increased, the combined blank holder and the combined female die are designed, the pre-drawing and the drawing are completed in a die in one sequence through the combined movable mechanism in the stamping process, two-time drawing operation of two sets of dies is not needed, the production cost is reduced, and the stamping forming efficiency is improved.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic sectional view of the mold of the present invention.
Fig. 2 is a schematic view of the combined blank holder structure of the present invention.
Fig. 3 is a schematic view of the structure of the combined female die of the present invention.
In the figure:
1. a lower die body; 2. a blank holder body; 3. a drive plate; 4. a movable blank holder pressing plate; 5. a movable slide block; 6. a movable blank holder; 7. a counterbalance; 8. the movable slide block drives the guide plate; 9. a movable blank holder limiting plate; 10. a movable blank holder guide plate; 11. the movable blank holder is used for guiding the sliding plate; 12. a lower guide sliding plate of the movable blank holder; 13. a movable slider nitrogen spring; 14. a gas cap rod connecting column; 15. a movable slider working bolt; 16. an outer guide plate of the blank holder body; 17. an upper die body; 18. movably drawing the female die by the upper die; 19. a movable female die limiting block; 20. a movable concave die working guide sliding plate; 21. a safety bolt; 22. a movable female die bottom surface guide sliding plate; 23. a movable female die pressing plate; 24. the movable female die side guide sliding plate; 25. a movable concave die nitrogen spring; 26. a drive plate slot; 27. a movable slide block driving block; 28. a male die; 29. a nitrogen spring of the blank holder body; 30. and (4) side pins.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, the combined drawing and stamping die for improving the rigidity of the outer covering part comprises an upper die body 17, a lower die body 1 and a blank holder, wherein the lower die body is provided with a male die 28, the upper die body is provided with a female die, the blank holder is a movable combined blank holder, the combined blank holder is arranged on the lower die body, the female die comprises a fixed female die and a movable combined female die, the combined female die is positioned on the outer side of the fixed female die, the combined female die and the combined blank holder are arranged in an up-down opposite mode, and the combined blank holder is provided with a driving plate for driving the combined female die to draw an outer covering.
The combined blank holder and the combined female die are arranged in a vertically matched mode, so that secondary thinning in the drawing process of the plate is realized, and the rigidity of the plate is improved. According to the requirements of a drawn appearance piece and a shallow drawing piece on the need of thinning and rigidity improvement, two combined blank holders are designed on a blank holder body in the direction in which a more shallow drawn plate is not thinned, and two combined female dies are designed on an upper die body; guide plates are arranged among all the components for guiding and positioning, and nitrogen spring movable components are movably arranged among all the components for returning or working.
The lower die body is provided with a movable slide block driving block 27 for driving the combined blank holder, and the driving block is arranged on the side surface of the male die. The combined female die comprises an upper die movable drawing female die 18, a safety bolt 21 and a guide sliding plate, and the upper die movable drawing female die is arranged on the upper die body through the safety bolt and the guide sliding plate.
The combined blank holder comprises a blank holder body 2, a movable blank holder 6, a movable sliding block 5 and a movable blank holder guide sliding plate, wherein the blank holder body is arranged on the lower die body through a gas ejector rod, the movable blank holder is arranged on the blank holder body through the movable blank holder guide sliding plate, and the movable sliding block is arranged on the movable blank holder and corresponds to the driving block. The driving plate 3 is arranged on the movable blank holder; the blank holder body is arranged on the lower die body through a blank holder body nitrogen spring 29, and the lower die body is provided with a side pin 30 corresponding to the combined blank holder.
A movable female die limiting block 19 for limiting the movable drawing female die of the upper die is arranged on the upper die body; a movable female die nitrogen spring 25 for resetting the upper die movable drawing female die is arranged on the outer side of the upper die movable drawing female die on the upper die body; through the arrangement of the movable female die limiting block and the movable female die nitrogen spring, the movable female die works stably and reliably.
In the stamping process, the blank holder body and the movable blank holder play a pressing role, the blank holder body and the movable blank holder work further along with the press, and the movable blank holder and the driving plates on the movable sliding block drive the upper die and the movable drawing female die to draw the plate outwards for a stroke, so that the expected thinning value is achieved. The purpose that just two sets of moulds can be achieved is realized to one set of mould like this, solves the product thinning rate that the customer requires namely product rigidity technological problem, has practiced thrift mould manufacturing cost simultaneously.
The movable blank holder guide sliding plate comprises a movable blank holder upper guide sliding plate 11 and a movable blank holder lower guide sliding plate 12, a movable blank holder limiting plate 9 and a movable blank holder guide plate 10 are arranged on the movable sliding block 5, a gas ejector rod connecting post 14 is arranged at the lower part of the blank holder body and correspondingly connected with a gas ejector rod through the gas ejector rod connecting post, and a movable sliding block working bolt 15 and a blank holder body outer guide plate 16 are arranged on the blank holder body; a movable slide block driving guide plate 8 is arranged on the movable blank holder corresponding to the slide block, and a balance block 7, a movable blank holder pressing plate 4 and a movable slide block nitrogen spring 13 are arranged on the movable blank holder. The structure design is compact, the occupied space is small, and the work is stable and reliable.
The movable drawing female die of the upper die of the combined female die is provided with a driving plate groove 26 corresponding to the driving plate, and the guide slide plate on the upper die body comprises a movable female die working guide slide plate 20, a movable female die bottom surface guide slide plate 22 and a movable female die side guide slide plate 24, so that the work is stable and reliable; and a movable female die pressing plate 23 is arranged on the side edge of the upper die body corresponding to the movable female die, so that the working reliability is ensured.
According to the characteristics of insufficient glass drawing rate and rigidity of the automobile outer covering part, a combination mechanism is respectively designed on a set of die female die and a blank holder, and the innovative design realizes the function of finishing the secondary drawing of two conventional sets of dies by one set of die.
In the die closing process of the press, the combined female die is in contact with the combined blank holder for pressing, the movable slide block driving block on the male die drives the movable slide block driving guide plate to push the movable slide block, the movable drawing female die of the upper die is driven to be pre-drawn through the driving plate on the movable blank holder, the press continues to work downwards, the combined female die and the combined blank holder press the pre-rolled piece to continue drawing, the male die and the profile of the upper die body are drawn and formed, the whole die closing process is finished, and the drawn plate is drawn and formed according to the preset drawing thinning.
In the positive stamping process, the plate material pre-drawing and the secondary drawing are realized in a set of die, mainly in the stamping process of the combined blank holder and the combined female die under the pressure of a press, the primary pre-drawing is realized through the movable part of the combined mechanism, the secondary drawing is realized through further stamping, and the problems of the thinning rate of the shallow-drawn outer covering part and the improvement of the rigidity are solved by a set of die.
The preferable drawing forming process of the automobile outer covering plate is as follows:
die stamping and die assembly:
(1) before die assembly, the die is arranged on a press, the upper die and the lower die are in a die opening state, nitrogen springs among all the components are in a prepressing state, all the components are connected through fastening screws and fixing pins for positioning, and working components are guided and positioned through guide plates and cover plates.
(2) The upper die body 17 and the corresponding parts move downwards along with the slide block of the press, the movable drawing female die 18 of the upper die contacts the movable female die limiting block 19 under the prepressing action of the nitrogen spring 25 of the movable female die to be in a non-working state, and the combined female die moves downwards along with the press to contact with the blank holder body 2 and press the plate.
(3) The combined blank holder is separated from the upper plane of the lower die body 1 under the action of the nitrogen spring 29 of the blank holder body, and the inclined plane of the movable slide block driving guide plate 8 on the movable slide block 5 is contacted with the inclined plane of the movable slide block driving block 27 on the male die 28; at the moment, the lower air cushion ejector rod of the press props against the air ejector rod connecting column 14 in the combined blank holder to provide blank holder force, the combined female die is pushed to press the combined blank holder to move downwards along with the slide block of the press, the drive plate 3 in the combined blank holder drives the combined female die, the drive plate 3 is matched with the drive plate groove 26 in the combined female die and drives the upper die movable drawing female die 18 to press the plate to be drawn outwards for a design stroke, and the expected value of design thinning is achieved.
(4) When the press continues to move downwards, the movable slide block driving guide plate 8 and the movable slide block driving block 26 move up and down in a guiding mode relative to the plane, the combined female die and the combined blank holder press the pre-stretched plate to continue to move downwards, the upper die body 17 and the male die 28 start drawing and forming, the press continues to move downwards and draw to the bottom, the drawing and die assembly process is finished, the plate is drawn and finished under the condition of the pre-stretching pre-thinning value, the plate meets the drawing rigidity requirement, and drawing limit analysis is carried out to meet the thinning rate requirement of a client.
Stamping and opening the die:
(1) the upper die body 17 moves upwards along with the press slide block and is separated from the male die 27, the upper die movable drawing female die 18 and the combined blank holder act on the pneumatic rod connecting column 14 under the action of the air ejector rod of the press, and the plate material is continuously pressed under the pressure of the ejector rod.
(2) In the process that the press continues to move upwards, the movable slide block driving guide plate 8 in the combined blank holder is separated from the plane contact with the movable slide block driving block 27 in the combined male die 28, meanwhile, the driving plate 3 is separated from the driving plate groove 26 of the upper die movable drawing female die 18, the press continues to move upwards, and the combined blank holder is completely separated from the combined female die.
(3) Under the action of a nitrogen spring 13 of a movable sliding block in the combined blank holder, the movable sliding block contacts a limiting plate 9 of the movable blank holder and is in a non-working state, similarly, an upper die movable drawing female die 18 in the combined female die returns to a movable female die limiting block under the action of a nitrogen spring 25 of the movable female die, and the upper die movable drawing female die 18 is in a non-working state.
(4) The combined blank holder acts on the blank holder body nitrogen spring 19 and the blank holder body 2, the plate is stored on the blank holder, and the die opening work of the die is finished after the plate is taken out.
From the above working process description: the structure completes two work contents of plate pre-drawing and drawing by one-time stamping through the design of a combined blank holder and a combined concave die, completes plate pre-thinning and drawing work in different stamping time periods, and effectively solves the problems of thinning rate and rigidity of a shallow-drawn outer covering piece; and meanwhile, the manufacturing cost of the die caused by the increase of die procedures due to two operations is also realized.
The above-mentioned is only for the description of the preferred embodiments of the present invention, and the above-mentioned technical features can be combined at will to form a plurality of embodiments of the present invention.
The present invention has been described in detail with reference to the accompanying drawings, and it is apparent that the present invention is not limited by the above embodiments, and various insubstantial improvements can be made without modification to the present invention.
Claims (7)
1. The utility model provides an improve outer cover rigidity's combination drawing stamping die, includes mould body and lower mould body and blank holder, be equipped with the terrace die on the lower mould body, be equipped with the die on the mould body, its characterized in that: the blank holder is a movable combined blank holder, the combined blank holder is arranged on the lower die body, the female die comprises a fixed female die and a movable combined female die, the combined female die is located on the outer side of the fixed female die, the combined female die and the combined blank holder are arranged in an up-down opposite mode, and a driving plate used for driving the combined female die to draw an outer covering plate outwards is arranged on the combined blank holder.
2. A combination draw and press mold for increasing the rigidity of an outer cover according to claim 1, wherein: and the lower die body is provided with a driving block for driving the combined blank holder.
3. A combination draw and press mold for increasing the rigidity of an outer cover according to claim 1, wherein: the combined female die comprises an upper die movable drawing female die, a safety bolt and a guide sliding plate, and the upper die movable drawing female die is arranged on the upper die body through the safety bolt and the guide sliding plate.
4. A combination draw and press mold for increasing the rigidity of an outer cover according to claim 2, wherein: the combined blank holder comprises a blank holder body, a movable blank holder, a movable sliding block and a movable blank holder guide sliding plate, wherein the blank holder body is arranged on the lower mold body through a gas ejector rod, the movable blank holder is arranged on the blank holder body through the movable blank holder guide sliding plate, and the movable sliding block is arranged on the movable blank holder and corresponds to the driving block.
5. A combination draw and press mold for increasing the rigidity of an outer cover according to claim 3, wherein: and the upper die body is provided with a movable female die limiting block for limiting the movable drawing female die of the upper die.
6. A combination draw and press mold for increasing the rigidity of an outer cover according to claim 3, wherein: and a movable female die nitrogen spring for resetting the upper die movable drawing female die is arranged on the outer side of the upper die movable drawing female die on the upper die body.
7. A combination draw and press mold for increasing the rigidity of an outer cover according to claim 4, wherein: the driving plate is arranged on the movable blank holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920649853.6U CN210188163U (en) | 2019-05-08 | 2019-05-08 | Combined drawing and stamping die for improving rigidity of outer covering piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920649853.6U CN210188163U (en) | 2019-05-08 | 2019-05-08 | Combined drawing and stamping die for improving rigidity of outer covering piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210188163U true CN210188163U (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920649853.6U Active CN210188163U (en) | 2019-05-08 | 2019-05-08 | Combined drawing and stamping die for improving rigidity of outer covering piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210188163U (en) |
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- 2019-05-08 CN CN201920649853.6U patent/CN210188163U/en active Active
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