CN210877067U - Material returning device of stamping die - Google Patents
Material returning device of stamping die Download PDFInfo
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- CN210877067U CN210877067U CN201920286886.9U CN201920286886U CN210877067U CN 210877067 U CN210877067 U CN 210877067U CN 201920286886 U CN201920286886 U CN 201920286886U CN 210877067 U CN210877067 U CN 210877067U
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- piston rod
- upper die
- material returning
- hydraulic oil
- oil cylinder
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Abstract
The utility model relates to an automatic punching press auxiliary assembly field especially relates to a stamping die material returned device, can realize the material returned under the prerequisite that does not consume stamping pressure. A material returning device of a stamping die comprises an upper die base and a hydraulic oil cylinder, wherein a cylinder body of the hydraulic oil cylinder is connected with the upper die base, a piston rod extends downwards, and the end part of the piston rod is connected with a material returning plate. The hydraulic oil cylinder is used for driving the material returning plate to return materials, the power for returning the materials comes from the hydraulic oil cylinder, the pressure for pressing down by the press machine is not consumed, and the power loss is reduced.
Description
Technical Field
The utility model relates to an automatic punching press auxiliary assembly field especially relates to a stamping die material returned device.
Background
The stamping is a forming method in which a press and a die are used to apply external force to a plate, a strip, a pipe, a profile, etc. to cause plastic deformation or separation, thereby obtaining a workpiece (stamped part) of a desired shape and size. In the process of stamping, the workpiece can be extruded and molded only by matching the upper die and the lower die, and in the process of extrusion, due to the existence of larger pressure, the workpiece is easily adhered to the upper die, so that the workpiece needs to be pushed out downwards on the upper die.
The material returning of the stamping die generally adopts a linear spring or a nitrogen spring; if the tensile strength of the punched material is higher or the material sticking is more serious, the material returning force of the linear spring or the nitrogen spring is greatly increased: such as a greatly increased number, or an increased diameter, but this reduces the strength of the mold and increases the cost greatly.
And use line type spring or nitrogen spring material returned, punch press pressure reduces by a wide margin: for example, the linear spring or the nitrogen spring is used for returning materials, a 100T punching machine is used for punching products, the linear spring or the nitrogen spring is firstly compressed when the products are punched and pressed downwards, if the force of the linear spring or the nitrogen spring reaches 15T, the force of the 100T punching machine is reduced by 15T, the punching machine only actually works at the punching force of 85T at this time, and the effective working force is greatly reduced. And the linear spring or the nitrogen spring has the advantages of long service life, high cost and poor universality.
SUMMERY OF THE UTILITY MODEL
The above-mentioned not enough to prior art, the utility model provides a stamping die material returned device can realize the material returned under the prerequisite that does not consume stamping pressure.
The utility model provides a scheme as follows:
a material returning device of a stamping die comprises an upper die base and a hydraulic oil cylinder, wherein a cylinder body of the hydraulic oil cylinder is connected with the upper die base, a piston rod extends downwards, and the end part of the piston rod is connected with a material returning plate. The hydraulic oil cylinder is used for driving the material returning plate to return materials, the power for returning the materials comes from the hydraulic oil cylinder, the pressure for pressing down by the press machine is not consumed, and the power loss is reduced.
Preferably, the piston rod is connected with the upper die base in a sliding mode, and the moving direction of the piston rod is the same as that of the upper die base. The piston rod penetrates through the upper die base and is in sliding connection with the upper die base, so that a better guiding effect can be achieved, and the space is saved.
Preferably, a Glare ring is arranged between the piston rod and the upper die base. The GREEN ring can reduce the abrasion between the piston rod and the upper die base and simultaneously has a certain sealing effect.
Preferably, the upper part of the piston rod is provided with a limiting part protruding outwards, and the upper die base is provided with a matched limiting groove. The relative motion of the piston rod and the upper die holder is limited by the limiting part and the limiting groove, so that the piston rod is prevented from excessively extending downwards, the motion of the piston rod is reduced to a smaller range, and the interference with other parts can be avoided.
Preferably, the end of the piston rod is connected with the stripper plate through at least one connecting rod. The connecting rods are connected with the stripper plate, and the number and the positions of the connecting rods can be selected according to different shapes of the stripper plate, so that the device is suitable for various stamping dies.
Preferably, the stripper plate is provided with a plurality of through holes. The through hole of the stripper plate facilitates the punch to pass through.
A crank press machine uses the stamping die material returning device. The crank press machine starts to perform hydraulic material returning only when exceeding a bottom dead center (180 degrees) of the punch press, the punch press reaches a top dead center (360 degrees), a hydraulic system is closed, an overflow valve is opened, and pressure relief of a hydraulic station is realized.
The utility model discloses use hydraulic pressure material returned, avoided the power waste in the traditional material returned mode, improved energy efficiency, the connected mode of piston rod and material returned board is nimble changeable simultaneously, is applicable to different moulds. Meanwhile, when the material returning device is applied to a crank press, corresponding actions can be carried out by matching with the motion position of a crank, and the control is simpler.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
in the drawing, 1-an upper die holder, 2-a piston rod, 3-a stripper plate, 4-a connecting rod, 5-a Glae ring, 6-a limiting part, 7-a limiting groove, 8-a cylinder body, 9-a through hole and 10-a punch.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in fig. 1, the present embodiment discloses a material returning device for a stamping die, which includes an upper die holder 1 and a piston rod 2 vertically penetrating through the upper die holder 1, wherein a lower end surface of the piston rod 2 is connected to a material returning plate 3 through a plurality of detachable connecting rods 4, and the piston rod 2 is connected to the upper die holder 1 through a gley ring 5. The upper part of the piston rod 2 is provided with an annular limiting part 6 which protrudes outwards and is matched with the annular limiting part, and a limiting groove 7 is arranged in the upper die holder 1. The top of the piston rod 2 is connected with a cylinder body 8 of the hydraulic oil cylinder, and the cylinder body 8 drives the piston rod 2 to move up and down in a reciprocating mode through hydraulic oil. The stripper plate 3 is provided with a through hole 9, and a punch 10 fixedly connected with the upper die base 1 is arranged in the through hole 9.
A crank press machine using the material returning device is characterized in that a main driving module of the crank press machine is in linkage control with the hydraulic system.
The utility model discloses the theory of operation as follows:
when the upper die holder 1 moves downwards to perform stamping operation, the cylinder body 8 and the piston rod 2 do not work, and the press machine operates normally. When the punch exceeds the bottom dead center, the cylinder body 8 starts to work, the hydraulic oil pushes the piston rod 2 to move downwards, the connecting rod 4 plays a role of bearing the upper part and opening the lower part, and pushes the material returning plate 3 to move downwards to withdraw the workpiece.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and substance of the present invention, any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. Stamping die material returned device, its characterized in that: the die comprises an upper die holder (1) and a hydraulic oil cylinder, wherein a cylinder body (8) of the hydraulic oil cylinder is connected with the upper die holder (1), a piston rod (2) extends downwards, the end part of the piston rod is connected with a stripper plate (3), the piston rod (2) is connected with the upper die holder (1) in a sliding mode, and the moving direction of the piston rod (2) is the same as that of the upper die holder (1).
2. The stamping die material returning device according to claim 1, wherein: and a Glare ring (5) is arranged between the piston rod (2) and the upper die holder (1).
3. The stamping die material returning device according to claim 1 or 2, wherein: the upper part of the piston rod (2) is provided with a limiting part (6) protruding outwards, and the upper die holder (1) is provided with a matched limiting groove (7).
4. The stamping die material returning device according to claim 1, wherein: the end part of the piston rod (2) is connected with the stripper plate (3) through at least one connecting rod (4).
5. The stamping die material returning device according to claim 1, wherein: the stripper plate (3) is provided with a plurality of through holes (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920286886.9U CN210877067U (en) | 2019-03-06 | 2019-03-06 | Material returning device of stamping die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920286886.9U CN210877067U (en) | 2019-03-06 | 2019-03-06 | Material returning device of stamping die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210877067U true CN210877067U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920286886.9U Active CN210877067U (en) | 2019-03-06 | 2019-03-06 | Material returning device of stamping die |
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| CN (1) | CN210877067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719118A (en) * | 2020-12-30 | 2021-04-30 | 江苏扬力铸锻有限公司 | Active material returning device of press machine |
-
2019
- 2019-03-06 CN CN201920286886.9U patent/CN210877067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719118A (en) * | 2020-12-30 | 2021-04-30 | 江苏扬力铸锻有限公司 | Active material returning device of press machine |
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