Material-pressing-free reverse flanging mechanism in stamping die
By adopting a reverse flanging mechanism without pressing material in the stamping die and using a drive assembly to drive the flanging punch to complete the flanging action, the problems of long processing time and low precision of traditional molds are solved, and efficient parts processing is achieved.
Patent Information
- Application Number
- CN202422469139.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-10-12
AI Technical Summary
Traditional stamping dies require the design of a pressure plate with an upward flange, which results in longer processing time and reduced precision, limiting its application scope and efficiency.
A reverse flanging mechanism without pressing is adopted, and the flanging punch is driven up or down along the channel direction by the driving component to realize the flanging action of the part, reduce the number of mold processes and avoid the design of a press plate for upward flanging.
While ensuring the tolerance of parts, the number of mold processes is reduced, the processing cost is reduced, and the processing efficiency is improved.
Smart Images
Figure CN223430773U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the stamping flanging die technical field especially relates to a stamping die in exempt from material pressing reverse flanging mechanism. BACKGROUND
[0002] The stamping die is widely used in the metal plate stamping forming field. In the complex stamping process, the stamping part often needs to be flanged. The existing flanging mechanism usually adopts the material pressing form, that is, the concave die and the convex die are matched, and the metal plate is folded to the required shape by applying pressure. But because the gap of part is high, and there is flanging all around, the traditional stamping die lower die needs to design the material pressing plate of upward flanging, which will divide this process into two separate processes, resulting in longer processing time and lower processing precision. The above-mentioned shortcomings limit the application range and efficiency of the traditional stamping die. Therefore, a new, efficient and flanging mechanism is urgently needed to solve these problems. SUMMARY
[0003] The utility model discloses a stamping die in exempt from material pressing reverse flanging mechanism, which aims to solve the technical problem that the traditional stamping die lower die needs to design the material pressing plate of upward flanging in the prior art, which will divide this process into two separate processes, resulting in longer processing time and lower processing precision.
[0004] To achieve the above-mentioned purpose, the utility model embodiment provides a stamping die in exempt from material pressing reverse flanging mechanism, which comprises an upper die seat, a lower die seat and a driving mechanism. The upper die seat is arranged above the lower die seat, and the driving mechanism is used for driving the upper die seat to approach or move away from the lower die seat. The upper die seat is provided with a flanging concave die and a counter block, and the lower die seat is provided with a flanging convex die, a placing seat and a driving assembly. The placing seat is arranged on the upper surface of the lower die seat, the flanging concave die is arranged in the upper die seat and cooperates with the two sides of the placing seat, and a clearance elastic element is further arranged between the flanging concave die and the upper die seat. The placing seat is provided with a channel, the flanging convex die is arranged on the lower die seat and is in sliding connection with the channel, the counter block is arranged at the bottom of the upper die seat and is located on one side of the flanging concave die, the driving assembly is arranged on the lower die seat, one end of the driving assembly is located below the counter block, and the other end of the driving assembly is located below the flanging convex die. The driving assembly is used for driving the flanging convex die to rise or fall along the channel direction.
[0005] Further, the driving assembly comprises a driving block, a first sliding block and a second sliding block. The first sliding block is arranged in the lower die seat and slides in the horizontal direction, the driving block and the second sliding block are respectively abutted on the two sides of the first sliding block, the driving block is located below the counter block, and the driving block is arranged in the lower die seat and slides in the vertical direction. The second sliding block is located below the flanging convex die, and the second sliding block is arranged in the lower die seat and slides in the vertical direction.
[0006] Further, the first slider is provided with a first abutting surface and a second abutting surface respectively, the bottom end of the driving block is provided with a driving slope corresponding to the first abutting surface, and the bottom end of the second slider is provided with a driven slope corresponding to the second abutting surface.
[0007] Further, the lower die seat is further provided with a return nitrogen spring and a stroke limiting block. The driving block is provided with a boss at one end close to the first slider, the boss is located below the stroke limiting block, and the stroke limiting block is used for limiting the sliding of the driving block out of the lower die seat. One end of the return nitrogen spring abuts against the top end of the second slider, and the other end of the return nitrogen spring abuts against the lower die seat, and the return nitrogen spring is used for driving the second slider to move downward.
[0008] Further, a plurality of guide plates are further provided, and each guide plate is arranged at the sliding connection position of the lower die seat and the first slider, the sliding connection position of the lower die seat and the driving block, the sliding connection position of the lower die seat and the second slider, the sliding connection position of the driving block and the first slider, and the sliding connection position of the second slider and the first slider.
[0009] The one or more technical solutions of the reverse flanging mechanism without material pressing in the stamping die provided by the embodiment of the utility model have at least one of the following technical effects: the part is placed on the placing seat, then the driving mechanism drives the upper die seat to move towards the lower die seat, at this time, the flanging concave die is first in place and abuts against both ends of the placing seat, the elastic part is compressed and deformed to fix the part, the upper die seat continues to move downward, the top block is contacted and drives the driving assembly to move, the driving assembly drives the flanging convex die to move upward, and the flanging action of the part on the placing seat is completed. At this time, the upper die seat moves downward to the lower dead point and is ready to move upward. Then the driving mechanism drives the upper die seat to start moving upward, and one stamping action is completed. By using the driving assembly, the stamping direction of the product becomes the movement direction of the flanging convex die, and the material pressing plate for upward flanging does not need to be designed in the die. While ensuring the part tolerance, the number of die processes is reduced, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0010] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.
[0011] Fig. 1 The cross-sectional view of the reverse flanging mechanism without material pressing in the stamping die is provided.
[0012] Fig. 2Another sectional view of the reverse flanging mechanism without material pressing in a stamping die provided by the utility model.
[0013] The drawings show that the utility model discloses a upper die holder (10), a flanging concave die (11), a counter -top block (12), a give -place elastic part (13), a lower die holder (20), a flanging convex die (21), a placing seat (22), a passageway (23), a drive assembly (30), a drive block (31), a first sliding block (32), a second sliding block (33), a return nitrogen spring (34), a stroke limiting block (35), a boss (36), a first abutting face (40), a second abutting face (41), a drive slope (42), a driven slope (43), a guide plate (50). DETAILED DESCRIPTION
[0014] The embodiments of the utility model are described below in detail, the example of the embodiment is shown in the drawings, wherein the same or similar signs show the same or similar elements or elements with the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the embodiments of the utility model, and cannot be understood as the limitation of the utility model.
[0015] In the description of the embodiments of the utility model, it is understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as the limitation of the utility model.
[0016] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0017] In the embodiments of the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.
[0018] In an embodiment of the utility model, reference Figs. 1-2 As shown in the figure, provide a stamping die in exempt from material pressing reverse flanging mechanism, including upper die holder 10, lower die holder 20 and drive mechanism. Upper die holder 10 is set in the upper of lower die holder 20, and drive mechanism is used to drive upper die holder 10 to be close to or away from lower die holder 20. Upper die holder 10 is equipped with flanging die block 11 and counterblock 12, and is equipped with flanging punch 21, placing seat 22 and drive assembly 30 on lower die holder 20. Placing seat 22 is set on the upper surface of lower die holder 20, flanging die block 11 is set in upper die holder 10, and is matched with both sides of placing seat 22, and still be equipped with let go elastic element 13 between flanging die block 11 and upper die holder 10. Channel 23 is equipped in placing seat 22, flanging punch 21 is set on lower die holder 20, and is slidably connected with channel 23, counterblock 12 is set in the bottom of upper die holder 10, and is located in the side of flanging die block 11, drive assembly 30 is set on lower die holder 20, and one end of drive assembly 30 is located below counterblock 12, and the other end is located below flanging punch 21, and drive assembly 30 is used to drive flanging punch 21 to ascend or descend along the direction of channel 23. In this embodiment, the part is placed on placing seat 22, then drive mechanism drives upper die holder 10 to move towards lower die holder 20, at this time, flanging die block 11 is first in place and abuts against both ends of placing seat 22, let go elastic element 13 is compressed and deformed and fixes the part, upper die holder 10 continues to descend, counterblock 12 contacts and drives drive assembly 30 to move, drive assembly 30 drives flanging punch 21 to ascend, and the flanging action of the part on placing seat 22 is completed. At this time, upper die holder 10 descends to the lower dead point, and is ready to ascend. Then drive mechanism drives upper die holder 10 to start ascending, and one stamping action is completed. By utilizing drive assembly 30, the stamping direction of product becomes the movement direction of flanging punch 21, so that the material pressing plate for upward flanging in the die is not designed. While ensuring the part tolerance, the number of die processes is reduced, and the cost is reduced.
[0019] Specifically, reference Figs. 1-2As shown, the driving assembly 30 comprises a driving block 31, a first sliding block 32 and a second sliding block 33. The first sliding block 32 is slidingly arranged in the lower die seat 20 in a horizontal direction, the driving block 31 and the second sliding block 33 are respectively abutted on two sides of the first sliding block 32, the driving block 31 is located below the counter block 12, and the driving block 31 is slidingly arranged in the lower die seat 20 in a vertical direction. The second sliding block 33 is located below the flanging punch 21, and the second sliding block 33 is slidingly arranged in the lower die seat 20 in a vertical direction. In this embodiment, the part is placed on the placing seat 22, and then the driving mechanism drives the upper die seat 10 to move towards the lower die seat 20. At this time, the flanging punch 21 is first in place and abuts against both ends of the placing seat 22, the yielding elastic member 13 is compressed and deformed to fix the part, the upper die seat 10 continues to move downward, the counter block 12 contacts and drives the driving block 31 to move downward, the driving block 31 drives the first sliding block 32 to move in parallel, and then the first sliding block 32 drives the second sliding block 33 to move upward, the second sliding block 33 drives the flanging punch 21 to complete the flanging action on the part on the placing seat 22. By using the driving block 31 to drive the first sliding block 32 and the second sliding block 33, the stamping direction of the product is changed to the movement direction of the second sliding block 33, so that a material pressing plate for upward flanging does not need to be designed in the mold. While ensuring the part tolerance, the number of mold processes is reduced, and the cost is reduced.
[0020] Specifically, referring to Figs. 1-2 As shown, the first sliding block 32 is respectively provided with a first abutting surface 40 and a second abutting surface 41, the bottom end of the driving block 31 is provided with a driving slope 42 corresponding to the first abutting surface 40, and the bottom end of the second sliding block 33 is provided with a driven slope 43 corresponding to the second abutting surface 41. The first abutting surface 40 is inclined downward along the first sliding block 32 towards the driving block 31, and the second abutting surface 41 is inclined downward along the first sliding block 32 towards the second sliding block 33. In this embodiment, by abutting the first abutting surface 40 and the driving slope 42, and abutting the second abutting surface 41 and the driven slope 43, according to the inclined relationship of the driving slope 42, the first abutting surface 40, the second abutting surface 41 and the driven slope 43, it is known that when the driving block 31 descends, the second sliding block 33 rises, driving the flanging punch 21 to stamp the product on the placing seat 22.
[0021] Specifically, referring to Figs. 1-2As shown, the lower die seat 20 is also provided with a return nitrogen spring 34 and a stroke limiting block 35. The driving block 31 extends outward at one end close to the first sliding block 32 and is provided with a boss 36 below the stroke limiting block 35, which is used to limit the sliding of the driving block 31 out of the lower die seat 20. One end of the return nitrogen spring 34 abuts against the top end of the second sliding block 33, and the other end of the return nitrogen spring 34 abuts against the lower die seat 20, which is used to drive the second sliding block 33 to move downward. In the embodiment, the top block 12 contacts and drives the driving block 31 to move downward, the driving block 31 drives the first sliding block 32 to move in parallel, and then the first sliding block 32 drives the second sliding block 33 to move upward, the second sliding block 33 drives the flanging punch 21 to complete the flanging action on the parts placed on the placing seat 22, at this time the return nitrogen spring 34 is compressed by the second sliding block 33. When the upper die seat 10 starts to move upward, the second sliding block 33 moves downward under the action of the return nitrogen spring 34, drives the first sliding block 32 to move in parallel, and drives the driving block 31 to move upward, and the punch continues to move upward. After the boss 36 contacts the stroke limiting block 35, the driving block 31, the first sliding block 32 and the second sliding block 33 stop moving, and then the driving block 31 moves upward to the upper dead center.
[0022] In particular, reference is made to Figs. 1-2 As shown, a plurality of guide plates 50 are also provided, each of which is arranged at the sliding connection between the lower die seat 20 and the first sliding block 32, the sliding connection between the lower die seat 20 and the driving block 31, the sliding connection between the lower die seat 20 and the second sliding block 33, the sliding connection between the driving block 31 and the first sliding block 32, and the sliding connection between the second sliding block 33 and the first sliding block 32. In the embodiment, the guide blocks are used to limit the sliding direction of the driving block 31, the first sliding block 32 and the second sliding block 33, and also reduce the friction between the driving block 31, the first sliding block 32, the second sliding block 33 and the lower die seat 20, so as to avoid damaging the parts due to excessive friction.
[0023] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A reverse flanging mechanism for a stamping die without pressing material, comprising an upper die base, a lower die base, and a drive mechanism; the upper die base is disposed above the lower die base, and the drive mechanism is used to drive the upper die base toward or away from the lower die base; characterized in that: The upper die base is provided with a flanging die and a top block, and the lower die base is provided with a flanging punch, a placement seat and a driving assembly; the placement seat is arranged on the upper surface of the lower die base, the flanging die is arranged in the upper die base, and cooperates with both sides of the placement seat, and a yielding elastic member is also provided between the flanging die and the upper die base; a channel is provided in the placement seat, the flanging punch is arranged on the lower die base, and is slidably connected to the channel, the top block is arranged at the bottom of the upper die base, and is located on one side of the flanging die, the driving assembly is arranged on the lower die base, and one end of the driving assembly is located below the top block, and the other end is located below the flanging punch, and the driving assembly is used to drive the flanging punch to rise or fall along the direction of the channel.
2. The reverse flanging mechanism for a stamping die without pressing material according to claim 1, characterized in that: The driving assembly includes a driving block, a first slider and a second slider; the first slider is horizontally slidably arranged in the lower die base, the driving block and the second slider are respectively abutted on both sides of the first slider, the driving block is located below the top block, and the driving block is vertically slidably arranged in the lower die base; the second slider is located below the flanging punch, and the second slider is vertically slidably arranged in the lower die base.
3. The reverse flanging mechanism for a stamping die without pressing material according to claim 2, characterized in that: A first abutting surface and a second abutting surface are respectively provided on both sides of the first slider, the bottom end of the driving block is provided with a driving slope corresponding to the first abutting surface, and the bottom end of the second slider is provided with a driven slope corresponding to the second abutting surface; the first abutting surface is inclined downward along the first slider toward the driving block, and the second abutting surface is inclined downward along the first slider toward the second slider.
4. The reverse flanging mechanism for a stamping die without pressing material according to claim 3, characterized in that: A return nitrogen spring and a travel limit block are also provided in the lower die base; the drive block is provided with a boss extending outward at one end close to the first slider, and the boss is located below the travel limit block, and the travel limit block is used to limit the drive block from sliding out of the lower die base; one end of the return nitrogen spring abuts against the top of the second slider, and the other end of the return nitrogen spring abuts against the lower die base, and the return nitrogen spring is used to drive the second slider to move downward.
5. A reverse flanging mechanism for a stamping die without pressing material according to any one of claims 2 to 4, characterized in that: There are also several guide plates, each of which is respectively arranged at the sliding connection between the lower mold base and the first slider, the sliding connection between the lower mold base and the driving block, the sliding connection between the lower mold base and the second slider, the sliding connection between the driving block and the first slider, and the sliding connection between the second slider and the first slider.