Rocker arm type hole flanging stamping die

Abstract

The utility model discloses a rocker arm type hole flanging stamping die which comprises an upper die body and a lower die body, the upper die body comprises an upper die base, an upper concave cavity is formed in the middle of the bottom face of the upper die base, a stripper plate is installed in the upper concave cavity, a plurality of stripper plate inserts are arranged on the bottom face of the stripper plate, and the stripper plate inserts are arranged in the upper concave cavity. Driving blocks connected with the bottom end of the upper die base are arranged on the two sides of the stripper plate. The lower die comprises a lower die base, a lower concave cavity is formed above the upper die base, a set of rocker arm pieces are arranged in the lower concave cavity, a floating plate is arranged above the rocker arm pieces, a plurality of nitrogen springs are arranged above the floating plate, and a pressing plate is arranged at the ends, away from the floating plate, of the nitrogen springs. The floating plate is arranged in the lower concave cavity in a floating mode through the nitrogen springs, and an upturning punch is installed above the floating plate. The mold space is effectively controlled, and the mold cost is saved; and meanwhile, the quality of the product is better guaranteed through mechanical pressing and forming.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping dies, and in particular relates to a rocker-arm type hole-flanging stamping die. Background Art

[0002] A stamping die is a special process equipment used to process materials into parts or semi-finished products during cold stamping. It is called a cold stamping die. Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to separate or plastically deform the material, thereby obtaining the desired parts. A die is a tool used to shape objects. This tool is composed of various parts. Different dies are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the material being formed. During the use of existing stamping dies, when the product needs to be turned up, the traditional practice is to design a movable pressing plate around the turning hole, which requires a large die space, and the turning up pressing plate needs to be designed with a large pressing force to hold the product to ensure product quality. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art solutions, the utility model provides a rocker-arm type hole-flanging punching die, which can effectively solve the problems raised by the background technology.

[0004] To achieve the above-mentioned purpose, the embodiment of the utility model provides a rocker-type hole-flanging stamping die, comprising an upper die and a lower die, wherein the upper die is displaced in the vertical direction relative to the lower die;

[0005] Wherein, the upper die comprises an upper die seat, an upper concave cavity is formed in the middle of the bottom surface of the upper die seat, a stripper plate is installed in the upper concave cavity, a plurality of stripper plate inserts are arranged on the bottom surface of the stripper plate, and driving blocks connected to the bottom end of the upper die seat are arranged on both sides of the stripper plate;

[0006] The lower die includes a lower die seat, a lower concave cavity is formed above the upper die seat, a group of rocker arms are arranged in the lower concave cavity, a floating plate is arranged above the rocker arms, a plurality of nitrogen springs are arranged above the floating plate, a pressing plate is arranged at one end of the nitrogen spring away from the floating plate, the floating plate is floated in the lower concave cavity by the nitrogen spring, and an upward punch is installed above the floating plate.

[0007] Optionally, the upper die base and the lower die base are arranged opposite to each other, and the upper die base and the lower die base are parallel to each other.

[0008] Optionally, the driving block is symmetrically arranged at the bottom end of the lower die base, and the driving block is arranged in the lower concave cavity so as to be movable up and down and abuts against one side of the rocker arm.

[0009] Optionally, the upward-turning punch is convexly disposed in the lower concave cavity, and the upper end of the upward-turning punch is inserted into the bottom surface of the stripping plate and abuts against the stripping plate inserts on both sides.

[0010] Optionally, the rocker arm member includes a rotating shaft installed in the lower concave cavity and a rocker arm installed on the rotating shaft, and the rocker arm rotates with the rotating shaft.

[0011] The above one or more technical solutions in the rocker-type hole-turning punching die provided by the embodiment of the utility model have at least one of the following technical effects:

[0012] The rocker arm type hole-turning punching die provided by the embodiment of the utility model, when in use, the upper die seat moves downward relative to the lower die seat, during the downward movement of the upper die seat, the stripper plate insert and the pressure plate first position the product, and the upper die seat continues to move downward, at this time, the nitrogen spring begins to compress, pressing the product on the pressure plate, as the lower die seat continues to move downward, the drive block begins to contact the rocker arm, and then the rocker arm rotates with the shaft, thereby compressing the nitrogen spring, pushing the upward punch upward, thereby completing The upper die seat starts to move upward after the hole-turning work is completed. At this time, the nitrogen spring starts to reset, thereby pushing the upward punch to move downward, thereby ejecting the product, and the upper die seat continues to move upward, and the stripping plate returns to the mold opening state. When the upper die seat moves upward to the highest point of the punch press, a working process is completed. The utility model changes the upward punch to a movable type and the pressing plate to a fixed type, thereby effectively controlling the mold space and saving mold costs. At the same time, mechanical pressing and molding can better ensure product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 A cross-sectional view of the arm-type punching die in a closed state provided in an embodiment of the utility model;

[0015] Figure 2 A cross-sectional view of the arm-type punching die in the mold opening state provided in the embodiment of the utility model;

[0016] Among them, the reference numerals in the figure are:

[0017] 10. Upper die; 11. Upper die seat; 12. Upper cavity; 13. Stripper plate; 14. Stripper plate insert; 15. Driving block

[0018] 20. Lower die; 21. Lower die seat; 22. Lower concave cavity; 23. Rocker arm; 23a. Rotating shaft; 23b. Rocker arm; 24. Floating plate; 25. Nitrogen spring; 26. Pressing plate; 27. Upward punch DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0020] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0023] In one embodiment of the present invention, Figure 1-Figure 2 As shown, a rocker-type hole-flanging stamping die is provided, comprising an upper die 10 and a lower die 20 , wherein the upper die 10 is displaced in the vertical direction relative to the lower die 20 .

[0024] In this embodiment, the upper mold 10 includes an upper mold base 11, an upper cavity 12 is formed in the middle of the bottom surface of the upper mold base 11, a stripper plate 13 is installed in the upper cavity 12, a plurality of stripper plate inserts 14 are arranged on the bottom surface of the stripper plate 13, and driving blocks 15 connected to the bottom end of the upper mold base 11 are arranged on both sides of the stripper plate 13.

[0025] In this embodiment, the lower die 20 includes a lower die base 21, a lower concave cavity 22 is formed above the upper die base 11, a group of rocker arms 23b are arranged in the lower concave cavity 22, a floating plate 24 is arranged above the rocker arms 23b, a plurality of nitrogen springs 25 are arranged above the floating plate 24, a pressing plate 26 is arranged at one end of the nitrogen spring 25 away from the floating plate 24, the floating plate 24 is floated in the lower concave cavity 22 through the nitrogen spring 25, and an upward punch 27 is installed above the floating plate 24.

[0026] In this embodiment, the upper die base 11 is disposed opposite to the lower die base 21 , and the upper die base 11 and the lower die base 21 are parallel to each other. The upper die base 11 moves downward relative to the lower die base 21 .

[0027] In this embodiment, the driving block 15 is symmetrically arranged at the bottom end of the lower die base 21, and the driving block 15 is arranged in the lower concave cavity 22 and abuts against one side of the rocker arm 23b so as to be movable up and down.

[0028] In this embodiment, the upward punch 27 is protruding in the lower concave cavity 22, and the upper end of the upward punch 27 is inserted into the bottom surface of the stripper plate 13 and abuts against the stripper plate inserts 14 on both sides.

[0029] In this embodiment, the rocker arm 23b includes a rotating shaft 23a installed in the lower concave cavity 22 and a rocker arm 23b installed on the rotating shaft 23a, and the rocker arm 23b rotates with the rotating shaft 23a.

[0030] Working principle: When the rocker-type punching die provided by the embodiment of the utility model is used, the upper die seat 11 moves downward relative to the lower die seat 21. During the downward movement of the upper die seat 11, the stripper plate insert 14 and the pressure plate 26 first position the product, and the upper die seat 11 continues to move downward. At this time, the nitrogen spring 25 begins to compress and presses the product on the pressure plate 26. As the lower die seat 21 continues to move downward, the driving block 15 begins to contact the rocker arm 23b, and then Afterwards, the rocker arm 23b rotates with the rotating shaft 23a, thereby compressing the nitrogen spring and pushing the flip punch 27 upward, thereby completing the flip hole action. After the flip hole work is completed, the upper die seat 11 starts to move upward. At this time, the nitrogen spring starts to reset, thereby pushing the flip punch 27 downward to achieve the ejection of the product, and the upper die seat 11 continues to move upward, and the stripping plate 13 returns to the mold opening state. When the upper die seat 11 moves upward to reach the highest point of the punch press, a working process is completed. The rocker arm type flip hole stamping die provided by the embodiment of the utility model changes the flip punch 27 to a movable type, and the pressing plate 26 to a fixed type, thereby effectively controlling the mold space and saving mold costs; at the same time, mechanical pressing and molding can better ensure the quality of the product.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rocker-type punching die, characterized in that: It comprises an upper die (10) and a lower die (20), wherein the upper die (10) is displaced in a vertical direction relative to the lower die (20); The upper die (10) comprises an upper die base (11), an upper cavity (12) is formed in the middle of the bottom surface of the upper die base (11), a stripper plate (13) is installed in the upper cavity (12), a plurality of stripper plate inserts (14) are arranged on the bottom surface of the stripper plate (13), and driving blocks (15) connected to the bottom end of the upper die base (11) are arranged on both sides of the stripper plate (13); The lower die (20) comprises a lower die seat (21), a lower concave cavity (22) is formed above the upper die seat (11), a group of rocker arms (23) are arranged in the lower concave cavity (22), a floating plate (24) is arranged above the rocker arms (23), a plurality of nitrogen springs (25) are arranged above the floating plate (24), a pressing plate (26) is arranged at one end of the nitrogen spring (25) away from the floating plate (24), the floating plate (24) is floated in the lower concave cavity (22) by the nitrogen spring (25), and an upward punch (27) is installed above the floating plate (24).

2. The rocker-type punching die according to claim 1, characterized in that: The upper die seat (11) and the lower die seat (21) are arranged opposite to each other, and the upper die seat (11) and the lower die seat (21) are parallel to each other.

3. The rocker-type punching die according to claim 2, characterized in that: The driving block (15) is symmetrically arranged at the bottom end of the lower die base (21), and the driving block (15) is arranged in the lower concave cavity (22) so as to be movable up and down and abuts against one side of the rocker arm.

4. The rocker-type punching die according to claim 3, characterized in that: The upward-turning punch (27) is protrudingly disposed in the lower concave cavity (22), and the upper end of the upward-turning punch (27) is inserted into the bottom surface of the stripping plate (13) and abuts against the stripping plate inserts (14) on both sides.

5. The rocker-type punching die according to claim 4, characterized in that: The rocker arm member (23) comprises a rotating shaft (23a) installed in the lower concave cavity (22) and a rocker arm installed on the rotating shaft (23a); the rocker arm rotates with the rotating shaft (23a).

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