CN212397846U - Cylindrical part drawing die - Google Patents
Cylindrical part drawing die Download PDFInfo
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- CN212397846U CN212397846U CN202020946020.9U CN202020946020U CN212397846U CN 212397846 U CN212397846 U CN 212397846U CN 202020946020 U CN202020946020 U CN 202020946020U CN 212397846 U CN212397846 U CN 212397846U
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Abstract
The utility model discloses a cylindrical part drawing die, relating to the technical field of drawing forming, which comprises a lower die holder, a female die and a protective frame, wherein the female die is provided with the protective frame; the upper die holder is arranged above the protective frame, the fixed plate is arranged at the bottom end of the upper die holder, the convex die is arranged at the bottom end of the fixed plate, the convex die is sleeved with the rubber tank, and the rubber tank is connected with the fixed plate through the pressing block; the convex die and the rubber tank are provided with a pushing piece which is sleeved outside the convex die, the pushing piece is connected below the fixed plate through an elastic piece, the pushing piece is of a convex-table-shaped cylindrical structure, the pressing block is sleeved outside the upper end of the pushing piece, and the rubber tank is sleeved outside the lower end of the pushing piece. The utility model discloses a cylinder deep-drawing mould has improved the deep-drawing degree of deformation through the rubber tank, once can the deep-drawing out part of any degree of deformation, makes the deep-drawing piece break away from the terrace die through the cooperation of ejector pad and elastic component, and the convenience is to taking off of deep-drawing piece, has improved production efficiency.
Description
Technical Field
The utility model relates to a deep-drawing takes shape technical field, concretely relates to section of thick bamboo deep-drawing mould.
Background
At present, the stamping deep drawing technology mainly comprises the traditional deep drawing, differential temperature deep drawing, dynamic blank holder force deep drawing, hydraulic deep drawing, opposite direction hydraulic deep drawing, rubber deep drawing and the like, and the existing deep drawing mode mainly comprises opposite direction pressure deep drawing and rubber deep drawing, wherein the opposite direction hydraulic deep drawing: before drawing, the female die is filled with liquid (oil), the wool is placed on the surface of the female die, the blank holder presses the wool, the male die moves downwards, and the wool is drawn into the female die. At this time, the relief valve controls the liquid pressure. Because the clearance between the blank holder and the female die is about larger than the thickness of the material, (1) the friction coefficient between the blank and the female die and between the blank and the blank holder is greatly reduced; (2) the liquid outside the flange provides pressure to the wool (in the thickness direction of the material); rubber deep drawing: the male die moves downwards to contact with rubber, and the rubber drives the wool to move inwards, so that the direction of the friction force of the rubber acting on the wool is inwards, the deep drawing deformation degree is facilitated, and the rubber is driven by the male die to enter the female die; the defects of the rubber deep drawing are as follows: the stamping part wraps the rubber and needs to be taken down, so that the production efficiency is too low; the diameter direction of the wool is not pressurized, so that the deep drawing deformation degree is not facilitated; the relative movement of the rubber and the wool is not obvious, and the deep drawing deformation degree is also influenced; opposite hydraulic deep drawing defect: a set of hydraulic system is needed, and oil needs to be filled before work. The cost is high, and the production efficiency is low; and the direction of the friction force between the blank holder and the wool is opposite, which is not beneficial to the deep drawing deformation degree.
Disclosure of Invention
The utility model provides a cylindrical part drawing die aiming at the problems, which comprises an upper die holder, a fixed plate, an elastic part, a pressing block, a pushing block, a convex die, an aerating tank, a protective frame, a concave die and a lower die holder;
a female die is arranged on the lower die holder, and a protective frame is arranged on the female die;
the upper die holder is arranged above the protective frame, the bottom end of the upper die holder is provided with the fixed plate, the bottom end of the fixed plate is provided with the convex die, the convex die is externally sleeved with the aerating tank, and the aerating tank is connected with the fixed plate through the pressing block;
the convex die is connected with the fixed plate through the elastic piece, the pressing block is arranged on the outer side of the upper end of the pushing block, and the rubber tank is arranged on the outer side of the lower end of the pushing block.
Further, the lower end of the tank is lower than the lower end of the pushing piece.
Furthermore, the inner diameter of the pushing piece block is larger than the inner diameter of the die cavity of the female die.
Furthermore, a gap is left between the tank and the pushing piece.
Furthermore, a top piece block is arranged in a die cavity of the female die.
Furthermore, the die further comprises an ejector rod bolt and an air cushion, wherein the ejector rod bolt is arranged at the bottom end of the ejector piece block and penetrates through the air cushion of the lower die holder to be connected.
The utility model has the advantages that:
the utility model relates to a cylindrical part drawing die, the side pressing ring is replaced by the tank type, and the direction of the friction force between the tank type and the woolen cloth is consistent with the flowing direction of the woolen cloth; meanwhile, the tank body presses the diameter direction of the raw material; make the deep-drawing spare break away from the terrace die through the cooperation of ejector pad and elastic component, the convenience is to taking off of deep-drawing spare, has improved production efficiency, the utility model provides high deep-drawing deformation degree, once can the deep-drawing go out the part of any deformation degree.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic drawing state diagram of the overall structure of the present invention;
FIG. 3 is a front view of the pushing block of the present invention;
fig. 4 is a top view of the pushing block of the present invention.
Reference numerals:
1-upper die holder, 2-fixed plate, 3-elastic piece, 4-pressing block, 5-pushing piece, 6-convex die, 7-rubber tank, 8-protective frame, 9-wool, 10-ejecting piece, 11-concave die, 12-lower die holder and 13-ejector bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1 to 4, the cylindrical part drawing die comprises an upper die holder 1, a fixed plate 2, an elastic part 3, a pressing block 4, a pushing block 5, a convex die 6, a rubber tank 7, a protective frame 8, a concave die 11 and a lower die holder 12;
a female die 11 is fixedly connected to the lower die holder 12, and a protective frame 8 is fixedly connected to the female die 11;
the upper die holder 1 is arranged above the protective frame 8, the bottom end of the upper die holder 1 is fixedly connected with the fixed plate 2, the bottom end of the fixed plate 2 is fixedly connected with the convex die 6, the convex die 6 is externally sleeved with the aging tank 7, the aging tank 7 is fixedly connected with the fixed plate 2 through the pressing block 4, and the pressing block 4 is used for pressurizing the aging tank 7;
the stripper block 5 is arranged between the convex die 6 and the rubber tank 7, the stripper block 5 is sleeved outside the convex die 6, the stripper block 5 is connected with the convex die 6 in a sliding way, the stripper block 5 is fixedly connected below the fixed plate 2 through the elastic part 3, the elastic part 3 is a spring, the stripper block 5 is in a convex-platform-shaped tubular structure, the press block 4 is sleeved outside the upper end of the stripper block 5, the rubber tank 7 is sleeved outside the lower end of the stripper block 5, and the press block 4 is connected with the upper end of the stripper block 5 in a sliding way;
the utility model provides a cylindrical part drawing die, wherein a woolen material 9 is placed on a female die 11 and is arranged in a space formed by a protective frame 8, an upper die base 1 descends to drive a male die 6 to descend, the rubber tank 7 and the male die 6 synchronously move, the rubber tank 7 is adhered with a pressing block 4, the male die 6 and the rubber tank 7 enter the space formed by the protective frame 8, the rubber tank 7 firstly contacts the woolen material 9 and then deforms under the action of the pressing block 4, the male die 6 and the protective frame 8; the tank 7 rubs with the wool 9, the direction of the friction force borne by the wool 9 is the same as the flowing direction of the wool, and because the compression amount of the height direction of the aging tank 7 is the same as the falling amount of the convex die 6, the flowing speed of the rubber tank 7 along the wool 9 is higher than the inward flowing speed of the material at the flange part, and simultaneously the rubber tank 7 has thrust at the thickness of the wool 9, so the convex die 6 continues to descend to draw the wool 9, and the wool 6 and the wool 9 enter the concave die 11 for deep drawing;
the upper die base 1 descends after the rubber tank 7 contacts the hair 9 first, so as to drive the male die 6 to descend until the male die 6 contacts the hair 9 with the stripper block 5, the upper die base 1 continues to descend, the male die 6 enters the female die 11 to begin to draw, meanwhile, the rubber tank 7 jacks the stripper block 5, the lower end of the rubber tank 7 is lower than the lower end of the stripper block 5, so that the rubber tank 7 contacts the hair 9 first and deforms, a gap is left between the rubber tank 7 and the stripper block 5, the deformed part contacts the bottom surface of the upper end of the stripper block 5, the force of the spring on the stripper block 5 is smaller than the pressure of the rubber tank 7 during the drawing process, and the lower end of the stripper block 5 does not contact the hair 9 when the rubber tank 7 contacts the hair 5 until the inner diameter of the stripper block 5 is larger than the inner diameter of the drawing die 11;
in an embodiment of the present invention, a top piece block 10 is arranged in a cavity of a female die 11, a vertical ejector bolt 13 is fixedly connected to the bottom end of the top piece block 10, the ejector bolt 13 penetrates through a lower die holder 12, and the ejector bolt 13 is placed on a cylinder or an air cushion of a press;
during drawing, the male die 6 and the wool 9 enter the female die 11 for drawing, the ejecting piece block 10 descends, the ejector rod bolt 13 descends, and the ejector rod bolt 13 applies force to the air cushion; after drawing is finished, the upper die base 1 moves upwards to drive the male die 6 to move upwards, and the ejecting piece block 10 moves upwards under the action of the air cushion, so that the drawn piece is ejected out of the female die 11; when the upper die holder 1 ascends, the tank type 7 returns to the original shape, meanwhile, the pushing block 5 enables the pushing block 5 to move downwards relative to the convex die 6 under the action of the spring, then the pushing block 5 can act on the wall of the drawing part cylinder (after the drawing part is exposed out of the concave die 11), and the drawing part is pushed down by the pushing block 5 until the die opening state is reached.
Degree of drawing deformation:
the deformation degree of the opposite hydraulic drawing process is as follows: draw ratio = 2.8;
the deformation degree of the rubber deep drawing process is as follows: draw ratio = 2.5;
the utility model discloses a deep-drawing deformation degree:
taking a cylindrical member as an example, the maximum tensile stress on the drawn tube wall is:
wherein:
r wool radius, R cylinder radius;
material forming limit conditions:
the material is set to be 10F steel,
。
the larger the value of Y is, the smaller the deformation degree of the drawing piece is;
the larger the unit blank holder force is, the larger the deformation degree is;
when in use
And R is any value, and drawing is successful.
Therefore, the drawing ratio of the drawing process of the utility model =
。
The utility model relates to a cylindrical part drawing die, the side pressing ring is replaced by the tank type, and the direction of the friction force between the tank type and the woolen cloth is consistent with the flowing direction of the woolen cloth; meanwhile, the rubber tank presses the diameter direction of the wool, the drawing part is separated from the convex die through the matching of the pushing block and the elastic part, the drawing part is conveniently taken down, the production efficiency is improved, the drawing deformation degree is improved, the drawing ratio is theoretically infinite, and parts with any deformation degree can be drawn at one time.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. A cylindrical part drawing die is characterized by comprising an upper die holder (1), a fixed plate (2), an elastic part (3), a pressing block (4), a pushing block (5), a convex die (6), an eraser tank (7), a protective frame (8), a concave die (11) and a lower die holder (12);
a female die (11) is arranged on the lower die holder (12), and a protective frame (8) is arranged on the female die (11);
the upper die holder (1) is arranged above the protective frame (8), the fixed plate (2) is arranged at the bottom end of the upper die holder (1), the convex die (6) is arranged at the bottom end of the fixed plate (2), the convex die (6) is externally sleeved with the aging tank (7), and the aging tank (7) is connected with the fixed plate (2) through the pressing block (4);
the pushing piece (5) is arranged between the convex die (6) and the rubber tank (7), the pushing piece (5) is sleeved outside the convex die (6), the pushing piece (5) is connected below the fixed plate (2) through an elastic piece (3), the pushing piece (5) is of a convex-platform-shaped tubular structure, the pressing block (4) is sleeved outside the upper end of the pushing piece (5), and the rubber tank (7) is sleeved outside the lower end of the pushing piece (5).
2. The cylindrical piece drawing die according to claim 1, wherein the lower end of the aging tank (7) is lower than the lower end of the pushing piece (5).
3. The cylinder drawing die according to claim 1, wherein the inside diameter of the ejector block (5) is larger than the inside diameter of the cavity of the die (11).
4. The cylindrical piece drawing die according to claim 1, wherein a gap is left between the aging tank (7) and the pushing piece (5).
5. The cylinder drawing die according to claim 1, wherein a top piece block (10) is provided in a cavity of the die (11).
6. The cylinder drawing die according to claim 5, further comprising a top rod bolt (13) and an air cushion, wherein the bottom end of the top piece block (10) is provided with the top rod bolt (13), and the top rod bolt (13) penetrates through the lower die base (12) and is connected with the air cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020946020.9U CN212397846U (en) | 2020-05-29 | 2020-05-29 | Cylindrical part drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020946020.9U CN212397846U (en) | 2020-05-29 | 2020-05-29 | Cylindrical part drawing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212397846U true CN212397846U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020946020.9U Active CN212397846U (en) | 2020-05-29 | 2020-05-29 | Cylindrical part drawing die |
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| CN (1) | CN212397846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115608837A (en) * | 2022-12-16 | 2023-01-17 | 潍坊工程职业学院 | Stamping and drawing equipment for processing thin-wall parts |
-
2020
- 2020-05-29 CN CN202020946020.9U patent/CN212397846U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115608837A (en) * | 2022-12-16 | 2023-01-17 | 潍坊工程职业学院 | Stamping and drawing equipment for processing thin-wall parts |
| CN115608837B (en) * | 2022-12-16 | 2023-03-07 | 潍坊工程职业学院 | Stamping and deep-drawing equipment for processing thin-wall parts |
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