CN217474631U - Bidirectional bending die structure - Google Patents
Bidirectional bending die structure Download PDFInfo
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- CN217474631U CN217474631U CN202221708041.2U CN202221708041U CN217474631U CN 217474631 U CN217474631 U CN 217474631U CN 202221708041 U CN202221708041 U CN 202221708041U CN 217474631 U CN217474631 U CN 217474631U
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Abstract
The utility model relates to the technical field of bending dies, in particular to a bidirectional bending die structure, which comprises an upper die unit and a lower die unit positioned below the upper die unit; the upper die unit comprises an upper mounting part and a lower pressing part, a first gap is formed between the upper mounting part and the lower pressing part, the upper mounting part is provided with a first elastic resetting unit and a first bending punch, the lower end of the first elastic resetting unit is abutted against the lower pressing part, and the lower end of the first bending punch is higher than or lower than the lower end of the lower pressing part along with the change of an operation state; the lower mould unit includes supporting part and lower installing part, it has the second clearance to go up between supporting part and the lower installing part, the utility model provides a two-way mould structure of bending can reduce the development cost of mould and the platform number of using, effectively reduces the cost of manufacture and saves the consumptive material, has the advantage of simplifying the shaping process, improving production efficiency and product precision.
Description
Technical Field
The utility model relates to a mould technical field of bending especially relates to a two-way mould structure of bending.
Background
Bending belongs to general characteristics of sheet metal parts of communication, new energy and electronic product type boxes, the material of the parts relates to low-carbon steel, aluminum alloy, stainless steel and copper materials, the surface states of the parts have the characteristics of hot dip galvanizing, electrogalvanizing, precoating, baking finish, high brightness and the like, and the parts have complex characteristics and high requirements on the appearance of the parts, so that the process is reduced as much as possible in the part forming and bending process, and the damage to the parts is reduced.
Referring to fig. 1, although the conventional bending and forming method has the advantages of convenient and simple operation, the bending and forming processes are numerous, which results in large accumulated tolerance after forming and makes product precision not meet the requirement.
SUMMERY OF THE UTILITY MODEL
The problem that the process of bending to the aforesaid existence leads to the product precision to reach the requirement a lot of, increase in cost and production efficiency low, the utility model provides a two-way mould structure of bending can reduce the development cost of mould and the number of stations use, effectively reduces the cost of manufacture and saves the consumptive material, has the advantage of simplifying forming process, improving production efficiency and product precision.
In order to solve the technical problem, the utility model provides a concrete scheme as follows:
a bidirectional bending die structure comprises an upper die unit and a lower die unit positioned below the upper die unit;
the upper die unit comprises an upper mounting part and a lower pressing part, a first gap is formed between the upper mounting part and the lower pressing part, the upper mounting part is provided with a first elastic resetting unit and a first bending punch, the lower end of the first elastic resetting unit is abutted against the lower pressing part, and the lower end of the first bending punch is higher than or lower than the lower end of the lower pressing part along with the change of an operation state;
the lower die unit comprises an upper supporting part and a lower mounting part, a second gap is formed between the upper supporting part and the lower mounting part, a second elastic resetting unit and a second bending punch are mounted on the lower mounting part, the upper end of the second elastic resetting unit is abutted to the upper supporting part, the upper supporting part is provided with a left-side bending push block and a right-side bending push block, the left-side bending push block is connected with a third elastic resetting unit, the right-side bending push block is connected with a fourth elastic resetting unit, the lower end of the left-side bending push block is in sliding contact with the upper end of the second bending punch, and the upper end of the right-side bending push block is in sliding contact with the lower end of the first bending punch.
Optionally, the first elastic resetting unit includes a first return spring, the second elastic resetting unit includes a second return spring, the pressing force of the first return spring is greater than the pressing force of the second return spring, in the downward movement process of the upper die unit, the first elastic resetting unit firstly contacts the surface of the product, and since the pressing force of the first return spring is higher than the pressing force of the second return spring, the lower die unit is directly pressed, and the upper die unit is preferentially closed.
Optionally, the first return spring is a nitrogen spring, the second return spring is a red spring, the nitrogen spring is a novel elastic assembly using high-pressure nitrogen as a working medium, and the nitrogen spring is small in size, large in elasticity, long in stroke, stable in work, precise in manufacture, long in service life, gentle in elasticity curve, free of pre-tightening and the like, and is used as a part of a mold to participate in work, so that pressure constant and time delay action can be conveniently realized in a system; the red springs represent mid-load springs, which have a lower compression force than the nitrogen springs, and are suitable for use in this application to preferentially close the lower die unit over the upper die unit.
Optionally, the lower end of the first bending punch is provided with a first inclined plane, the upper end of the right-side bending push block is provided with a first sliding inclined plane corresponding to the first inclined plane, and the first inclined plane and the first sliding inclined plane are arranged, so that the right-side bending push block can move in the direction of the left-side bending push block under the pushing action of the first bending punch.
Optionally, a second inclined plane is arranged at the upper end of the second bending punch, a second sliding inclined plane corresponding to the second inclined plane is arranged at the lower end of the left-side bending push block, and the second inclined plane and the second sliding inclined plane are arranged, so that the left-side bending push block can move towards the right-side bending push block under the pushing action of the second bending punch.
Optionally, an upper die movable guide post penetrates through the upper mounting portion and the lower pressing portion, so that the alignment accuracy of upward and downward movement of the lower pressing portion is improved.
Optionally, a lower die movable guide post penetrates between the upper supporting part and the lower mounting part, so that the alignment accuracy of upward and downward movement of the upper supporting part is improved.
Optionally, the upper mounting portion includes an upper die holder, an upper padding plate and an upper clamp plate, the lower end of the upper die holder is connected to the upper end of the upper padding plate, and the lower end of the upper padding plate is connected to the upper end of the upper clamp plate;
the lower material pressing portion comprises a stop plate and an upper stripping plate, the upper end of the upper stripping plate is connected to the lower end of the stop plate, the upper die base is used for being connected with an external punching machine, the punching machine drives the whole upper die unit to move upwards or downwards, the upper base plate and the upper clamping plate are arranged and used for installing the first elastic reset unit and the first bending punch, the stop plate and the upper stripping plate are arranged, and stable installation of other components can be achieved.
Optionally, the upper end of the first bending punch is locked and installed on the upper base plate, a first limit stop is abutted to one side of the first bending punch, the first bending punch is convenient to detach and replace, and meanwhile, the installation stability of the first bending punch can be improved.
Optionally, the upper supporting part is further provided with a second limit stop, and the second limit stop is located on a retraction path of the right-side bending push block, so that excessive displacement of the right-side bending push block under the action of the fourth elastic resetting unit is avoided, and the matching stability of the right-side bending push block and the first bending punch is improved.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a two-way mould structure of bending can reduce the development cost of mould and the number of stations use, effectively reduces the cost of manufacture and saves the consumptive material, has the advantage of simplifying the shaping process, improving production efficiency and product precision.
Drawings
FIG. 1 is a prior art molding process;
fig. 2 is a schematic view of a mold opening state of a bidirectional bending mold structure provided in an embodiment of the present invention;
fig. 3 is a schematic view of a bending process of a bidirectional bending die structure provided in an embodiment of the present invention;
fig. 4 is a schematic view of a closed state of a bidirectional bending mold structure provided in an embodiment of the present invention;
fig. 5 is a schematic view of the bending operation of the bidirectional bending die structure provided in the embodiment of the present invention completing a die opening state;
fig. 6 is a schematic view of a product before bending provided in an embodiment of the present invention;
fig. 7 is a schematic view of a bent product provided in an embodiment of the present invention;
FIG. 8 is a schematic view of a tooling die for the pre-bent product of FIG. 6;
wherein, 1 is an upper die unit; 2 is a lower die unit; 21 is an upper support part; 22 is a lower mounting portion; 3 is a first elastic reset unit; 4 is a first bending punch; 5 is a second elastic reset unit; 6 is a second bending punch; 7, a left-side bending push block; 8 is a right-side bending push block; 9 is a third elastic reset unit; 10 is a fourth elastic reset unit; 11 is an upper mounting portion; 111 is an upper die holder; 112 is an upper backing plate; 113 is an upper splint; 12 is a lower pressing part; 121, stop plate; 122 is an upper stripper plate; 13 is an upper die movable guide post; 14 is a lower die movable guide post; 15 is a first limit stop; and 16 is a second limit stop.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention will be combined to clearly and completely describe the technical solutions of the embodiments of the present invention. The described embodiments are some, but not all embodiments of the invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
For example, a bidirectional bending die structure comprises an upper die unit and a lower die unit positioned below the upper die unit; the upper die unit comprises an upper mounting part and a lower pressing part, a first gap is formed between the upper mounting part and the lower pressing part, the upper mounting part is provided with a first elastic resetting unit and a first bending punch, the lower end of the first elastic resetting unit is abutted to the lower pressing part, and the lower end of the first bending punch is higher than or lower than the lower end of the lower pressing part along with the change of an operation state; the lower die unit comprises an upper supporting part and a lower mounting part, a second gap is formed between the upper supporting part and the lower mounting part, a second elastic resetting unit and a second bending punch are mounted on the lower mounting part, the upper end of the second elastic resetting unit is abutted to the upper supporting part, the upper supporting part is provided with a left-side bending push block and a right-side bending push block, the left-side bending push block is connected with a third elastic resetting unit, the right-side bending push block is connected with a fourth elastic resetting unit, the lower end of the left-side bending push block is in sliding contact with the upper end of the second bending punch, and the upper end of the right-side bending push block is in sliding contact with the lower end of the first bending punch.
The two-way mould structure of bending that this embodiment provided can reduce the development cost of mould and the number of stations use, effectively reduces the cost of manufacture and saves the consumptive material, has the advantage of simplifying the shaping process, improving production efficiency and product precision.
The first embodiment is as follows:
as shown in fig. 2-5, a two-way bending die structure comprises an upper die unit 1 and a lower die unit 2 located below the upper die unit 1, wherein a punching machine is connected to the upper end of the upper die unit 1, the upper die unit 1 is driven by the punching machine to move upwards or downwards, when the upper die unit 1 moves downwards, the upper die unit 1 and the lower die unit 2 are in a die closing state, so that bending operation on a product is realized, and when the upper die unit 1 moves upwards, the upper die unit 1 and the lower die unit 2 are in a die opening state, so that next bending operation is facilitated.
The upper die unit 1 comprises an upper mounting portion 11 and a lower pressing portion 12, a first gap is formed between the upper mounting portion 11 and the lower pressing portion 12, a first elastic resetting unit 3 and a first bending punch 4 are arranged on the upper mounting portion 11, the lower end of the first elastic resetting unit 3 is abutted to the lower pressing portion 12, the lower end of the first bending punch 4 is higher than or lower than the lower end of the lower pressing portion 12 along with the change of an operation state, when the upper die unit 1 moves downwards to a certain stroke under the driving of a punching machine, the lower end of the first bending punch 4 is lower than the lower end of the lower pressing portion 12, and when the upper die unit 1 moves upwards to restore the original position under the driving of the punching machine, the lower end of the first bending punch 4 is higher than the lower end of the lower pressing portion 12.
The lower die unit 2 comprises an upper supporting part 21 and a lower mounting part 22, a second gap is formed between the upper supporting part 21 and the lower mounting part 22, a second elastic resetting unit 5 and a second bending punch 6 are mounted on the lower mounting part 21, the upper end of the second elastic resetting unit 5 is abutted to the upper supporting part, a left bending push block 7 and a right bending push block 8 are arranged on the upper supporting part 21, the left bending push block 7 is connected with a third elastic resetting unit 9, the right bending push block 8 is connected with a fourth elastic resetting unit 10, the lower end of the left bending push block 7 is in sliding contact with the upper end of the second bending punch 6, and the upper end of the right bending push block 8 is in sliding contact with the lower end of the first bending punch 4.
In the specific operation process, firstly, a product is placed on an upper supporting part 21 of a lower die unit 2, then the upper die unit 1 moves downwards under the driving of a punching machine, when a lower pressing part 12 of the upper die unit 1 is just contacted with the surface of the product, pressure is generated on the lower die unit 2 in the process that the upper die unit 1 continues to move downwards, so that the upper supporting part 21 of the lower die unit 2 moves downwards, namely a second gap is gradually reduced, a downward mounting part 22 of the upper supporting part 21 is close to, the lower end of a left-side bending push block 7 slides downwards and rightwards along the upper end of a second bending punch 6, and a second elastic resetting unit 5 is extruded and is in a compressed state; in the process of continuing to move downwards of the upper die unit 1, the lower material pressing part 12 of the upper die unit 1 is acted by the reverse force of the upper supporting part 21 of the lower die unit 2, so that the upper mounting part 11 is close to the lower pressing part, namely, the first gap is gradually reduced, the first bending punch 4 is contacted with the right-side bending push block 8, the right-side bending push block 8 is promoted to slide rightwards, and the product is bent by matching with the left-side bending push block 7; after the bending operation is completed, the upper die unit 1 moves upwards under the driving of the punch, the lower material pressing part 12 of the upper die unit 1 restores to the original position under the elastic force action of the first elastic resetting unit 3, so that the first gap between the lower material pressing part 12 and the upper mounting part 11 restores to the initial value, the upper supporting part 21 of the lower die unit 2 restores to the original position under the elastic force action of the second elastic resetting unit 5, so that the second gap between the upper supporting part 21 and the lower mounting part 22 restores to the initial value, the left bending push block 7 restores to the original position under the elastic force action of the third elastic resetting unit 9, and the right bending push block 8 restores to the original position under the elastic force action of the fourth elastic resetting unit 10.
Referring to fig. 6, which is a schematic diagram of a product before bending in this example, the product is formed into a shape shown in fig. 7 by the bidirectional bending mold structure provided in this example, and for the forming structure shown in fig. 6, the product may be formed by bending with another mold, as shown in fig. 8.
The second embodiment:
the first elastic reset unit 3 comprises a first reset spring, the second elastic reset unit 5 comprises a second reset spring, wherein the material pressing force of the first reset spring is larger than that of the second reset spring, the upper die unit 1 firstly contacts the surface of a product in the downward movement process, and the lower die unit 2 is directly pressed and is preferentially closed compared with the upper die unit 1 because the material pressing force of the first reset spring is higher than that of the second reset spring.
Specifically, the first return spring is a nitrogen spring, the second return spring is a red spring, the nitrogen spring is a novel elastic component which takes high-pressure nitrogen as a working medium, and the nitrogen spring is small in size, large in elasticity, long in stroke, stable in work, precise in manufacture, long in service life, gentle in elasticity curve, free of pre-tightening and the like, is used as a part of a die to participate in work, and can conveniently realize pressure constant and time-delay action in a system; the red springs represent mid-load springs, which have a lower pressing force than the nitrogen springs, and are suitable for use in this application to give priority to closing the lower die unit over the upper die unit.
Example three:
in this example, the lower end of the first bending punch 4 is provided with a first inclined surface, the upper end of the right-side bending push block 8 is provided with a first sliding inclined surface corresponding to the first inclined surface, and the first inclined surface and the first sliding inclined surface are arranged, so that the right-side bending push block can move in the direction of the left-side bending push block under the pushing action of the first bending punch.
Under the drive of the punching machine, the first bending punch 4 moves downwards, the right-side bending push block 8 is enabled to slide leftwards through the matching of the first inclined surface and the first sliding inclined surface, and when the first bending punch 4 moves upwards, the first bending punch 4 and the right-side bending push block 8 can slide and separate through the matching of the first inclined surface and the first sliding inclined surface.
The upper end of the second bending punch 6 is provided with a second inclined surface, the lower end of the left-side bending push block 7 is provided with a second sliding inclined surface corresponding to the second inclined surface, and the second inclined surface and the second sliding inclined surface are arranged, so that the left-side bending push block 7 can move towards the direction of the right-side bending push block under the pushing action of the second bending punch 6.
Similarly, the lower die unit 2 is pressed downwards by the upper die unit 1, the left-side bending push block 7 slides downwards and rightwards through the matching of the second inclined plane and the second sliding inclined plane, and when the acting force applied to the lower die unit 2 by the upper die unit 1 disappears, the left-side bending push block 7 can be matched with the second inclined plane and the second sliding inclined plane to restore the left-side bending push block 7 to the initial position.
In the example, an upper die movable guide column 13 is arranged between the upper mounting part 11 and the lower pressing part 12 in a penetrating way, so that the alignment accuracy of the upward and downward movement of the lower pressing part is improved; the lower die movable guide post 14 is arranged between the upper supporting part 21 and the lower mounting part 22 in a penetrating way, so that the alignment accuracy of the upward and downward movement of the upper supporting part is improved.
Example four:
the upper mounting portion 11 includes an upper die base 111, an upper pad 112 and an upper clamp plate 113, the lower end of the upper die base 111 is connected to the upper end of the upper pad 112, and the lower end of the upper pad 112 is connected to the upper end of the upper clamp plate 113; the lower press part 12 includes a stopper plate 121 and an upper stripper plate 122, and a lower end of the stopper plate 121 connects an upper end of the upper stripper plate 122.
The upper die holder 111 is used for being connected with an external punching machine, the punching machine drives the whole upper die unit to move upwards or downwards, the upper base plate 112 and the upper clamping plate 113 are arranged and used for installing the first elastic resetting unit 3 and the first bending punch 4, the stop plate 121 and the upper stripping plate 122 are arranged, and stable installation of other components can be achieved.
Wherein, the upper end of first bending drift 4 is locked and installed on upper padding plate 112, and one side butt joint of first bending drift 4 has first limit stop 15, is convenient for dismantle the change to first bending drift 4, also can improve the installation stability to first bending drift 4 simultaneously.
The upper supporting part 21 is further provided with a second limit stop 16, the second limit stop 16 is located on a retraction path of the right-side bending push block 8, excessive displacement of the right-side bending push block 8 under the action of the fourth elastic reset unit 10 is avoided, and the matching stability of the right-side bending push block 7 and the first bending punch 4 is improved.
To sum up, the utility model provides a pair of two-way mould structure of bending can reduce the development cost of mould and the number of stations that the board used, effectively reduces the cost of manufacture and saves the consumptive material, has the advantage of simplifying the shaping process, improving production efficiency and product precision.
In the description of the present invention, it should be understood that the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Claims (10)
1. A bidirectional bending die structure is characterized by comprising an upper die unit (1) and a lower die unit (2) positioned below the upper die unit (1);
the upper die unit (1) comprises an upper mounting part (11) and a lower pressing part (12), a first gap is formed between the upper mounting part (11) and the lower pressing part (12), the upper mounting part (11) is provided with a first elastic resetting unit (3) and a first bending punch (4), the lower end of the first elastic resetting unit (3) is abutted to the lower pressing part (12), and the lower end of the first bending punch (4) is higher or lower than the lower end of the lower pressing part (12) along with the change of an operation state;
the lower die unit (2) comprises an upper supporting part (21) and a lower mounting part (22), a second gap is formed between the upper supporting part (21) and the lower mounting part (22), a second elastic resetting unit (5) and a second bending punch (6) are mounted on the lower mounting part (22), the upper end of the second elastic resetting unit (5) is connected with the upper supporting part (21) in an abutting mode, the upper supporting part (21) is provided with a left bending push block (7) and a right bending push block (8), the left bending push block (7) is connected with a third elastic resetting unit (9), the right bending push block (8) is connected with a fourth elastic resetting unit (10), and the lower end of the left bending push block (7) is in sliding contact with the upper end of the second bending punch (6);
the upper end of the right-side bending push block (8) is in sliding contact with the lower end of the first bending punch (4).
2. The bidirectional bending die structure according to claim 1, wherein the first elastic reset unit (3) comprises a first reset spring, the second elastic reset unit (5) comprises a second reset spring, and a pressing force of the first reset spring is greater than a pressing force of the second reset spring.
3. The bidirectional bending die structure of claim 2, wherein the first return spring is a nitrogen spring, and the second return spring is a red spring.
4. The bidirectional bending die structure according to claim 1, wherein the lower end of the first bending punch (4) is provided with a first inclined surface, and the upper end of the right-side bending push block (8) is provided with a first sliding inclined surface corresponding to the first inclined surface.
5. The bidirectional bending die structure according to claim 1, wherein a second inclined surface is arranged at the upper end of the second bending punch (6), and a second sliding inclined surface corresponding to the second inclined surface is arranged at the lower end of the left-side bending push block (7).
6. A bidirectional bending die structure according to claim 1, wherein an upper die movable guide column (13) is arranged between the upper mounting portion (11) and the lower pressing portion (12) in a penetrating manner.
7. A bidirectional bending die structure according to claim 1, wherein a lower die movable guide post (14) is inserted between the upper supporting portion (21) and the lower mounting portion (22).
8. The bidirectional bending die structure according to claim 1, wherein the upper mounting portion (11) comprises an upper die holder (111), an upper cushion plate (112) and an upper clamping plate (113), wherein the lower end of the upper die holder (111) is connected with the upper end of the upper cushion plate (112), and the lower end of the upper cushion plate (112) is connected with the upper end of the upper clamping plate (113);
the lower material pressing part (12) comprises a stop plate (121) and an upper stripping plate (122), wherein the lower end of the stop plate (121) is connected with the upper end of the upper stripping plate (122).
9. The bidirectional bending die structure according to claim 8, wherein the upper end of the first bending punch (4) is mounted on the upper backing plate (112) in a locking manner, and a first limit stop (15) abuts against one side of the first bending punch (4).
10. A bidirectional bending die structure according to claim 1, wherein the upper supporting portion (21) is further provided with a second limit stop (16), and the second limit stop (16) is located on a retraction path of the right-side bending push block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221708041.2U CN217474631U (en) | 2022-07-04 | 2022-07-04 | Bidirectional bending die structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221708041.2U CN217474631U (en) | 2022-07-04 | 2022-07-04 | Bidirectional bending die structure |
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| CN217474631U true CN217474631U (en) | 2022-09-23 |
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| CN202221708041.2U Active CN217474631U (en) | 2022-07-04 | 2022-07-04 | Bidirectional bending die structure |
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| CN (1) | CN217474631U (en) |
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- 2022-07-04 CN CN202221708041.2U patent/CN217474631U/en active Active
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