CN212310618U - Drawing die - Google Patents
Drawing die Download PDFInfo
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- CN212310618U CN212310618U CN202020820354.1U CN202020820354U CN212310618U CN 212310618 U CN212310618 U CN 212310618U CN 202020820354 U CN202020820354 U CN 202020820354U CN 212310618 U CN212310618 U CN 212310618U
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- die
- blank holder
- material pressing
- pressing device
- holder
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Abstract
The utility model discloses a drawing die, which comprises an upper die and a lower die; the lower die comprises a male die, a blank holder and a jacking piece, wherein the male die is fixedly arranged, the blank holder is positioned on the periphery of the male die, and the jacking piece is used for providing upward power for the blank holder; the upper die comprises a die holder, a female die, a material pressing device and a power element, the female die is fixedly mounted on the die holder, the material pressing device is mounted on the die holder, an elastic part used for driving the material pressing device to move downwards is arranged between the material pressing device and the die holder, a die cavity is formed in the bottom of the female die, a material pressing part penetrating through the female die and penetrating into the die cavity is arranged on the material pressing device, a synchronous action mechanism is arranged between the blank holder and the material pressing device, and the synchronous action mechanism is used for driving the material pressing device to move upwards along with the blank holder when the blank. The utility model discloses a drawing die makes the ejection of compact in-process glassware of blank holder jack-up sheet material by the synchronous jacking of blank holder to avoided ejection of compact in-process glassware still to press the condition on the sheet material, be favorable to avoiding the sheet material to warp at ejection of compact in-process, improved product quality.
Description
Technical Field
The utility model relates to a stamping die especially relates to a drawing die.
Background
The dies adopted in the drawing process are often provided with a blank holder and a material pressing device, and the purpose of arranging the blank holder and the material pressing device is to compact the plate and prevent the plate from moving in the drawing process so as to reduce the risk of wrinkling or material stacking in the drawing process.
For example, referring to the drawing die shown in fig. 1, a blank holder 2 is arranged on the periphery of a male die 1, a material presser 3 is arranged in a female die 5, after a sheet material is drawn and formed, the female die moves upwards, the blank holder lifts the sheet material, but when the blank holder lifts the sheet material, the material presser can still press on the sheet material under the action of a spring, so that the product is easily deformed, although in part of the drawing die, the ascending time of the blank holder can be controlled, so that when the blank holder moves upwards to a sufficient position in the female die, the blank holder lifts the sheet material, but the method can lead to the lengthening of the punching time and the reduction of the production efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a drawing die to the condition that the glassware still pressed on the sheet material when avoiding blank holder jack-up sheet material reduces the risk that the sheet material warp, improves product quality.
In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:
a drawing die comprises an upper die and a lower die;
the lower die comprises a male die and a blank holder, the male die is fixedly arranged, the blank holder is positioned on the periphery of the male die, a jacking piece is arranged at the bottom of the blank holder, and the blank holder is driven by the jacking piece to move upwards or downwards;
the upper die comprises a die holder, a female die and a material pressing device, the female die is fixedly arranged on the die holder, the material pressing device is arranged on the die holder, an elastic part for driving the material pressing device to move downwards is arranged between the material pressing device and the die holder, the die holder moves upwards or downwards under the driving of a power element, a cavity is formed in the bottom of the female die, and a material pressing part penetrating through the female die and penetrating into the cavity is arranged on the material pressing device;
the synchronous action mechanism is used for driving the material pressing device to move upwards synchronously along with the blank holder when the blank holder ejects materials.
Optionally, the synchronous action mechanism includes:
the push block is arranged on the blank holder in a sliding manner;
the pushing power element is used for providing power for the action of the pushing block; and
the swage support legs are arranged on the swage and are positioned on the periphery of the female die;
when the blank holder ejects materials after the sheet materials are formed, the push block is pushed to the position right below the support leg of the material pressing device by the pushing power element, so that the push block is embedded into a space between the support leg of the material pressing device and the blank holder.
Optionally, the blank holder comprises a blank holder main body and a blank holder insert arranged on the blank holder main body, the drawn sheet is pressed between the blank holder insert and the female die during forming, and the pushing power element and the push block are both located on the blank holder main body outside the blank holder insert.
Optionally, a guide groove for guiding the push block is arranged on the blank holder main body, and the push block is slidably arranged in the guide groove.
Optionally, an anti-loosening structure for preventing the pushing block from coming out of the guide groove is arranged between the pushing block and the blank holder main body.
Optionally, a limiting plate is arranged outside the guide groove, an inverted T-shaped groove is formed at the bottom of the limiting plate and the bottom of the guide groove, and the cross section of the push block is an inverted T-shaped section matched with the inverted T-shaped groove.
Optionally, an adjusting piece used for limiting the stroke of the pushing block is detachably arranged on the blank holder main body, and the adjusting piece is installed in the guide groove.
Optionally, the die comprises a die insert and a die insert seat, the cavity is formed in the die insert, the pressing portion sequentially penetrates through the die insert seat and the die insert, and the drawn sheet is pressed between the blank holder and the die insert during forming.
Optionally, the swage includes a swage body, a swage leg and the swaging portion, the swage leg and the swaging portion are both disposed on the swage body, the elastic member is located between the swage body and the die holder, the swaging portion is disposed in a central region on the swage body, and the swage leg is disposed in an end region of the swage body.
Optionally, the top of swager body still is provided with the orientation the first dead block of squatting of die holder, the bottom of swager body still is provided with the orientation the second dead block of squatting of die.
The utility model discloses an among the drawing die, set up synchronous action mechanism between blank holder and eccentric swage for blank holder jack-up sheet material's ejection of compact in-process blank holder is by the synchronous jacking of blank holder, thereby the condition on the sheet material is still pressed to the eccentric swage when having avoided ejection of compact in-process blank holder jack-up sheet material, is favorable to avoiding the sheet material to warp at ejection of compact in-process, has improved product quality, and blank holder and die can go upward in step, can improve production efficiency.
Drawings
FIG. 1 is a schematic structural view of a conventional drawing die;
FIG. 2 is a schematic structural view of a drawing die of the present invention;
FIG. 3 is a state diagram of the drawing die of the present invention before stamping;
fig. 4 is a state diagram of the drawing die of the present invention at the initial stage of stamping;
fig. 5 is a state diagram of the drawing die of the present invention when the sheet material is completely formed;
fig. 6 is a schematic structural diagram of the synchronous acting mechanism.
Description of reference numerals in the examples:
the device comprises a male die 1, a blank holder 2, a material pressing device 3, a die holder 4, a female die 5, an elastic part 6, a jacking part 7, a pushing block 8, a pushing power element 9, a limiting plate 10, an adjusting part 11, a first squatting dead block 12, a second squatting dead block 13, a blank holder main body 21, a blank holder insert 22, a guide groove 201, a material pressing part 31, a material pressing device supporting leg 32, a material pressing device main body 33, a female die insert seat 51, a female die insert 52, a die cavity 501 and a guide surface 81.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, like reference numerals refer to like elements throughout.
The embodiment discloses a drawing die, which is combined with fig. 2 to 6, and comprises an upper die and a lower die:
the lower die comprises a male die 1 and a blank holder 2, wherein the male die 1 is fixedly arranged, the blank holder 2 is positioned on the periphery of the male die 1, a jacking piece 7 is arranged at the bottom of the blank holder 2, and the blank holder 2 is driven by the jacking piece 7 to move upwards or downwards;
the upper die comprises a die holder 4, a die 5 and a material pressing device 3, the die 5 is fixedly mounted on the die holder 4, the material pressing device 3 is mounted on the die holder 4, an elastic part 6 for driving the material pressing device 3 to move downwards is arranged between the material pressing device 3 and the die holder 4, the die holder 4 moves upwards or downwards under the driving of a power element (such as a press, not shown in the figure), a die cavity 501 is formed in the bottom of the die 5, and a material pressing part 31 penetrating through the die 5 and penetrating into the die cavity 501 is arranged on the material pressing device 3;
the synchronous action mechanism is arranged between the blank holder 2 and the material pressing device 3 and used for driving the material pressing device 3 to synchronously move upwards along with the blank holder 2 when the blank holder 2 ejects materials.
In an actual implementation process, the die holder 4 is provided with a guide structure for guiding the material pressing device 3, so that the material pressing device 3 can move up or down relative to the die holder 4.
Before stamping, referring to fig. 3, a sheet material needs to be placed between an upper die and a lower die, and during stamping, referring to fig. 4, a male die 1 in the lower die is fixed, a female die 5 and a material pressing device 3 in the upper die both move downwards along with a female die holder 4 until a material pressing part 31 presses the sheet material on the sheet material above the male die 1, the female die 5 presses the sheet material above a blank holder 2, and at the moment, an elastic part 6 is not in a compressed state; referring to fig. 5, the female die holder 4 continues to move downwards, the female die 5 moves downwards along with the female die, the blank holder 2 also moves downwards under the extrusion of the female die 5, but the material pressing part is not limited by the male die 1 and does not move downwards any more, the elastic part 6 is compressed between the material pressing part and the female die holder 4, the relative position of the material pressing part 31 and the female die 5 changes until the bottom surface of the material pressing part 31 exits from the die cavity 501 and becomes a part of the interior of the die cavity 501, the sheet material is formed, and meanwhile, the synchronous action mechanism takes effect; after the sheet material is formed, the blank holder 2 moves upwards under the action of the jacking piece 7, the female die holder 4 also drives the female die 5 to move upwards, and the synchronous action mechanism overcomes the elastic force of the elastic piece 6 to enable the material pressing device 3 to move upwards synchronously along with the blank holder 2; when the sheet material is separated from the male die 1 along with the blank holder 2, the blank holder 2 does not move upwards any more, the female die holder 4 continues to move upwards, the female die 5 and the material pressing device 3 are driven to be separated from the blank holder 2, and a formed product can be taken out, so that the condition that the material pressing device 3 is still pressed on the sheet material when the blank holder 2 jacks up the sheet material in the discharging process is avoided, the deformation of the sheet material in the discharging process is avoided, the product quality is improved, the blank holder and the material pressing device can move upwards synchronously, and the production efficiency can be improved.
Specifically, in some embodiments, the synchronous action mechanism includes:
the push block 8 is arranged on the blank holder 2 in a sliding way;
a pushing power element 9 for providing power for the action of the pushing block 8; and
a presser foot 32 provided on the presser 3, the presser foot 32 being located at the periphery of the female die 5;
when the blank holder 2 ejects the sheet after the sheet is formed, the push block 8 is pushed to the position right below the holder support leg 32 by the pushing power element 9, so that the push block 8 is embedded into the space between the holder support leg 32 and the blank holder 2.
For example, the pushing power member 9 may be a cylinder, and the pushing block 8 is caused to extend or retract by the extension and retraction of the cylinder, and when the cylinder is in the extended state, the pushing block 8 is embedded in the space between the blank holder 2 and the presser foot 32, whereas when the cylinder is retracted, the pushing block 8 is retracted out of the space.
In practical implementation, in order to push the pushing block 8 into the space between the presser foot 32 and the blank holder 2 smoothly, a guide surface 81 may be provided on the pushing block 8, and the guide surface 81 is an inclined surface facing the presser foot 32.
In some embodiments, the blank holder 2 includes a blank holder main body 21 and a blank holder insert 22 disposed on the blank holder main body 21, the drawn sheet is pressed between the blank holder insert 22 and the female die 5 during forming, and the pushing power element 9 and the pushing block 8 are both located on the blank holder main body 21 outside the blank holder insert 22.
In some embodiments, the blank holder main body 21 is provided with a guide groove 201 for guiding the push block 8, and the push block 8 is slidably disposed in the guide groove 201, so as to facilitate reliable control of the pushing and withdrawing directions of the push block 8 and improve the reliability of the synchronous action mechanism.
In some embodiments, an anti-loose structure for preventing the push block 8 from coming out of the guide groove 201 is provided between the push block 8 and the blank holder body 21.
In some embodiments, a limiting plate 10 is disposed outside the guide groove 201, the limiting plate 10 and the bottom of the guide groove 201 form an inverted T-shaped groove, and the cross section of the push block 8 is an inverted T-shaped section matched with the inverted T-shaped groove. In practical implementation, the stop plate 10 can be fastened to the binder 2 by means of fasteners.
In some embodiments, an adjusting member 11 for limiting the stroke of the pushing block 8 is detachably disposed on the blank holder main body 21, and the adjusting member 11 is installed in the guide groove 201.
In some embodiments, the die 5 includes a die insert seat 51 and a die insert 52, the cavity 501 is formed on the die insert 52, the pressing portion 31 sequentially penetrates through the die insert seat 51 and the die insert 52, and a drawn sheet is pressed between the blank holder 2 and the die insert 52 during forming.
In some embodiments, the binder 3 includes a binder body 33, the binder leg 32, and the binder 31, the binder leg 32 and the binder 31 are both disposed on the binder body 33, the elastic member 6 is located between the binder body 33 and the die holder 4, the binder 31 is disposed in a central region on the binder body 33, and the binder leg 32 is disposed in an end region of the binder body 33.
In some embodiments, the top of the swage body 33 is further provided with a first squat block 12 facing the die holder 4, and the bottom of the swage body 33 is further provided with a second squat block 13 facing the die 5.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not being in direct contact, but rather being in contact with each other via additional features between them. In the description of the invention, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, components, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, and/or groups thereof.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The drawing die comprises an upper die and a lower die, and is characterized in that:
the lower die comprises a male die and a blank holder, the male die is fixedly arranged, the blank holder is positioned on the periphery of the male die, a jacking piece is arranged at the bottom of the blank holder, and the blank holder moves upwards or downwards under the driving of the jacking piece;
the upper die comprises a die holder, a female die and a material pressing device, the female die is fixedly arranged on the die holder, the material pressing device is arranged on the die holder, an elastic part used for driving the material pressing device to move downwards is arranged between the material pressing device and the die holder, the die holder moves upwards or downwards under the driving of a power element, a cavity is formed in the bottom of the female die, and a material pressing part penetrating through the female die and penetrating into the cavity is arranged on the material pressing device;
the synchronous action mechanism is used for driving the material pressing device to move upwards synchronously along with the blank holder when the blank holder ejects materials.
2. The drawing die of claim 1, wherein: the synchronous action mechanism comprises:
the push block is arranged on the blank holder in a sliding manner;
the pushing power element is used for providing power for the action of the pushing block; and
the swage support legs are arranged on the swage and are positioned on the periphery of the female die;
when the blank holder ejects materials after the sheet materials are formed, the push block is pushed to the position right below the support leg of the material pressing device by the pushing power element, so that the push block is embedded into a space between the support leg of the material pressing device and the blank holder.
3. The drawing die of claim 2, wherein:
the blank holder comprises a blank holder main body and a blank holder insert arranged on the blank holder main body, a drawn plate is pressed between the blank holder insert and the female die during forming, and the pushing power element and the push block are both positioned on the blank holder main body outside the blank holder insert.
4. The drawing die of claim 3, wherein: the blank holder main part is provided with a guide groove for guiding the push block, and the push block is arranged in the guide groove in a sliding manner.
5. The drawing die of claim 4, wherein: and an anti-loosening structure for preventing the push block from being separated from the guide groove is arranged between the push block and the blank holder main body.
6. The drawing die of claim 5, wherein: a limiting plate is arranged outside the guide groove, an inverted T-shaped groove is formed at the bottom of the limiting plate and the bottom of the guide groove, and the cross section of the push block is an inverted T-shaped section matched with the inverted T-shaped groove.
7. The drawing die of claim 4, wherein: the blank holder main part is detachably provided with an adjusting piece used for limiting the stroke of the push block, and the adjusting piece is installed in the guide groove.
8. The drawing die of claim 2, wherein: the die comprises a die insert and a die insert seat, the cavity is formed in the die insert, the pressing part sequentially penetrates through the die insert seat and the die insert, and a drawn plate is pressed between the blank holder and the die insert during forming.
9. The drawing die of claim 2, wherein: the material pressing device comprises a material pressing device body, a material pressing device support leg and a material pressing portion, the material pressing device support leg and the material pressing portion are arranged on the material pressing device body, the elastic piece is located between the material pressing device body and the concave die base, the material pressing portion is arranged in the central area of the material pressing device body, and the material pressing device support leg is arranged in the end area of the material pressing device body.
10. The drawing die of claim 9, wherein: the top of eccentric swage body still is provided with the orientation the first dead block of squatting of die holder, the bottom of eccentric swage body still is provided with the orientation the second dead block of squatting of die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020820354.1U CN212310618U (en) | 2020-05-15 | 2020-05-15 | Drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020820354.1U CN212310618U (en) | 2020-05-15 | 2020-05-15 | Drawing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212310618U true CN212310618U (en) | 2021-01-08 |
Family
ID=74024784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020820354.1U Active CN212310618U (en) | 2020-05-15 | 2020-05-15 | Drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212310618U (en) |
-
2020
- 2020-05-15 CN CN202020820354.1U patent/CN212310618U/en active Active
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