A punching die and punching system for processing a bottom guard plate

Abstract

The utility model belongs to the technical field of punching die, disclose a kind of bottom guard plate processing is punched and cut mould and punching system, the bottom guard plate processing is punched and cut mould and is included upper die knife frame, upper die mould core and lower die knife pillow, upper die knife frame has installation groove, upper die knife frame is provided with limit component, limit component has the state of ejection and retraction state, upper die mould core is fixedly installed in installation groove, lower die knife pillow is located below upper die knife frame, upper die knife frame can selectively approach or away from lower die knife pillow, when limit component is in the state of ejection, upper die knife frame is separated from lower die knife pillow;When limit component is in retraction state, upper die knife frame and lower die knife pillow are engaged. The utility model provides a kind of bottom guard plate processing is punched and cut mould and punching system, simple structure, reduce tooling investment, optimize production procedure, reduce downtime maintenance time simultaneously, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of punching die technology, and in particular to a punching die and punching system for processing bottom guard plates. Background Technology

[0002] With increasing demands for lightweighting and environmental protection in the automotive industry, long-fiber PET (Polyethylene terephthalate) composite materials are gradually replacing traditional metal or short-fiber reinforced materials and are widely used in the manufacturing of passenger vehicle underbody panels due to their high strength, impact resistance, and recyclability. After injection molding, this material requires punching to meet assembly dimensional accuracy requirements. Punching dies, as key process equipment, directly affect product qualification rate and production efficiency.

[0003] In related technologies, passenger vehicle long fiber PET underbody protection panels typically employ a process of "hot pressing, cooling and shaping, and water jet cutting." However, this process is complex and inefficient. Utility Model Content

[0004] The purpose of this utility model is to provide a punching die and punching system for processing bottom guard plates, which has a simple structure and can improve production efficiency.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A punching die for processing a bottom guard plate includes:

[0007] The upper die cutter frame has a mounting groove and a limit component, which has an ejected state and a retracted state.

[0008] The upper mold core is fixedly installed in the mounting groove;

[0009] The lower die holder is located below the upper die frame. The upper die frame can selectively move closer to or further away from the lower die holder. When the limiting component is in the ejected state, the upper die frame and the lower die holder are separated; when the limiting component is in the retracted state, the upper die frame and the lower die holder are engaged.

[0010] Preferably, the limiting component includes a first driving member, a pull rod, and a limiting member. The first driving member is installed on the outer wall of the upper die frame, the pull rod is fixedly connected to the output end of the first driving member, and the pull rod passes through the upper die frame. The limiting member is fixedly connected to the pull rod. The first driving member can drive the pull rod to move along its own axis so that the limiting member has an ejected state and a retracted state.

[0011] When the limiting component is in the ejected state, the upper mold core abuts against the limiting component to separate the upper mold cutter frame from the lower mold cutter rest; when the limiting component is in the retracted state, the upper mold core abuts against the bottom wall of the mounting groove to engage the upper mold cutter frame with the lower mold cutter rest.

[0012] Preferably, the first driving component is a cylinder.

[0013] Preferably, the upper mold core includes a mold core body and a wear-resistant component. The mold core body is connected to the upper mold cutter frame by fasteners, and the wear-resistant component is disposed between the outer wall of the mold core body and the inner wall of the mounting groove of the upper mold cutter frame.

[0014] Preferably, multiple wear-resistant parts are provided, and the multiple wear-resistant parts are distributed along the circumference of the mold core body.

[0015] Preferably, the wear-resistant part includes a body and an elastic wear-resistant layer covering at least a portion of the body, the wear rate of the elastic wear-resistant layer being less than the wear rate of the body, and the elastic wear-resistant layer forming at least a surface that contacts the inner wall of the mounting groove.

[0016] Preferably, the upper mold core also includes an elastic element, which is disposed between the mold core body and the bottom wall of the mounting groove. One end of the elastic element is connected to or abuts against the mold core body, and the other end of the elastic element is connected to or abuts against the bottom wall of the mounting groove.

[0017] Preferably, multiple elastic elements are provided, and the multiple elastic elements are distributed circumferentially along the core body.

[0018] Preferably, the mold core body is provided with a stepped groove, and the limiting member is movably disposed in the stepped groove. When the limiting member is in the ejected state, the mold core body abuts against the limiting member; when the limiting member is in the retracted state, the mold core body abuts against the bottom wall of the mounting groove.

[0019] A punching system includes a second drive member and a punching die for processing the bottom guard plate according to any of the above technical solutions. The second drive member is used to drive the upper die frame to move closer to or away from the lower die rest.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a punching die and punching system for processing bottom guard plates. When punching the workpiece, the workpiece is first placed on the lower die holder. At this time, the limiting component is switched to the ejection state, and the upper die frame moves downward towards the lower die holder to close the die. Due to the restriction of the upper die core by the limiting component, a certain distance is maintained between the upper die frame and the lower die holder to ensure that the cutting edge of the upper die frame does not touch the lower die holder. At this time, the workpiece is hot-pressed and pressure is maintained. After the pressure is maintained, the limiting component is switched to the retraction state, and the upper die frame moves upward away from the lower die holder to allow the workpiece to begin to cool and shrink. After the workpiece has cooled and shrunk, the upper die frame moves downward towards the lower die holder again to close the die. At this time, the limiting component is in the retraction state, the upper die core is not restricted by the limiting component, and the upper die frame can engage with the lower die holder to complete the punching of the workpiece.

[0022] By switching between the ejection and retraction states using the limiting component, the engagement state between the upper die holder and the lower die rest can be flexibly adjusted. This allows it to be used with bottom guard plate materials of different thicknesses and materials, giving the punching die good adaptability and process flexibility. In the non-punching state, the upper and lower dies remain separated. The structure is simple, reducing tooling investment, optimizing production processes, reducing downtime maintenance time, and improving production efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the punching die for processing the bottom guard plate provided in this embodiment of the utility model;

[0024] Figure 2 This is an exploded view of the punching die for processing the bottom guard plate provided in this embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the limiting component provided in this embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the upper mold core provided in this embodiment of the utility model;

[0027] Figure 5 This is a schematic diagram of the hot pressing forming process of the punching die product provided in this utility model embodiment;

[0028] Figure 6 This is a schematic diagram of the cooling and shaping steps of the punching die product provided by the embodiment of this utility model;

[0029] Figure 7 This is a schematic diagram of the secondary forming and punching steps of the punching die product provided in this embodiment of the utility model.

[0030] In the picture:

[0031] 1. Upper die cutter frame; 11. Limiting assembly; 111. Tie rod; 112. Limiting component; 113. First driving component;

[0032] 2. Upper mold core; 21. Mold core body; 22. Wear-resistant parts; 23. Elastic parts; 24. Fasteners;

[0033] 3. Part to be punched; 4. Lower die holder. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] like Figure 1-7As shown, an embodiment of this utility model provides a punching die for processing a bottom guard plate, including an upper die frame 1, an upper die core 2, and a lower die rest 4. The upper die frame 1 has a mounting groove and is provided with a limiting component 11, which has an ejected state and a retracted state. The upper die core 2 is fixedly installed in the mounting groove, and the lower die rest 4 is located below the upper die frame 1. The upper die frame 1 can selectively approach or move away from the lower die rest 4. When the limiting component 11 is in the ejected state, the upper die frame 1 is separated from the lower die rest 4; when the limiting component 11 is in the retracted state, the upper die frame 1 and the lower die rest 4 are engaged.

[0039] When punching the part to be punched 3, first place the part to be punched 3 on the lower die holder 4. At this time, switch the limiting component 11 to the ejection state, and at the same time, the upper die holder 1 moves downward and closes to the lower die holder 4. Since the upper die core 2 is restricted by the limiting component 11, a certain distance is maintained between the upper die holder 1 and the lower die holder 4 to ensure that the cutting edge of the upper die holder 1 does not touch the lower die holder 4. At this time, the part to be punched 3 is hot-pressed and pressure is maintained. After the pressure is maintained, switch the limiting component 11 to the retraction state, and at the same time, the upper die holder 1 moves upward and away from the lower die holder 4. The part to be punched 3 begins to cool and shrink. After the part to be punched 3 has cooled and shrunk, the upper die holder 1 moves downward and closes to the lower die holder 4 again. At this time, the limiting component 11 is in the retraction state, the upper die core 2 is not restricted by the limiting component 11, and the upper die holder 1 can engage with the lower die holder 4 to complete the punching of the part to be punched 3.

[0040] By switching between the ejection and retraction states using the limiting component 11, the engagement state between the upper die holder 1 and the lower die rest 4 can be flexibly adjusted. This allows the die to be used with bottom guard plate materials of different thicknesses and materials, giving the punching die good adaptability and process flexibility. In the non-punching state, the upper and lower dies remain separated. The structure is simple, reducing tooling investment, optimizing production processes, reducing downtime for maintenance, and improving production efficiency.

[0041] Furthermore, such as Figure 3 As shown, the limiting assembly 11 includes a first driving member 113, a pull rod 111, and a limiting member 112. The first driving member 113 is mounted on the outer wall of the upper die frame 1. The pull rod 111 is fixedly connected to the output end of the first driving member 113 and passes through the upper die frame 1. The limiting member 112 is fixedly connected to the pull rod 111. The first driving member 113 can drive the pull rod 111 to move along its own axial direction, so that the limiting member 112 has an ejected state and a retracted state. When the limiting member 112 is in the ejected state, the upper die core 2 abuts against the limiting member 112 to separate the upper die frame 1 from the lower die rest 4. When the limiting member 112 is in the retracted state, the upper die core 2 abuts against the bottom wall of the mounting groove to engage the upper die frame 1 with the lower die rest 4. Specifically, the first driving member 113 is a cylinder, and the limiting member 112 is a limiting block.

[0042] The first driving component 113 drives the pull rod 111 to move, and the pull rod 111 drives the limiting component 112 to move, so that the limiting component 112 can switch between the ejection state and the retraction state. The punching of the workpiece 3 to be punched can be completed by the engagement of the upper die frame 1 and the lower die rest 4. The structure is simple, the tooling investment is reduced, the production process is optimized, and the production efficiency is improved.

[0043] Furthermore, the upper mold core 2 includes a mold core body 21 and a wear-resistant component 22. The mold core body 21 is connected to the upper mold cutter frame 1 by fasteners 24, and the wear-resistant component 22 is disposed between the outer wall of the mold core body 21 and the inner wall of the mounting groove of the upper mold cutter frame 1. Specifically, the wear-resistant component 22 is a wear-resistant plate, and the fastener 24 is a screw.

[0044] Wear-resistant component 22 is disposed between the outer wall of the die core body 21 and the inner wall of the mounting groove of the upper die holder 1. Wear-resistant component 22 can directly withstand the lateral extrusion force during the punching process, avoiding wear caused by contact friction between the die core body 21 and the mounting groove of the upper die holder 1. At the same time, wear-resistant component 22 can control the positional accuracy of the die core body 21 within the mounting groove of the upper die holder 1. In addition, wear-resistant component 22 also plays a certain lubricating role, ensuring that the die core body 21 does not jam during the floating process.

[0045] Furthermore, multiple wear-resistant parts 22 are provided, and the multiple wear-resistant parts 22 are distributed along the circumference of the die core body 21. This arrangement can disperse the contact stress between the die core body 21 and the inner wall of the mounting groove during the punching process to multiple nodes, avoid edge wear or deformation of the die core body 21 caused by local stress concentration, and extend the service life of the die core body 21.

[0046] Specifically, such as Figure 4 As shown, four wear-resistant parts 22 are provided, corresponding to the four side walls of the mold core body 21 respectively.

[0047] Furthermore, the wear-resistant component 22 includes a body and an elastic wear-resistant layer covering at least a portion of the body. The wear rate of the elastic wear-resistant layer is less than the wear rate of the body, and the elastic wear-resistant layer forms at least a surface that contacts the inner wall of the mounting groove.

[0048] An elastic wear-resistant layer is provided on the surface of the body that contacts the inner wall of the mounting groove, so that the mold core body 21 will not be worn during the floating process, thus extending the service life of the mold core body 21.

[0049] Furthermore, the mold core body 21 is provided with a stepped groove, and the limiting member 112 is movably disposed in the stepped groove. When the limiting member 112 is in the ejected state, the mold core body 21 abuts against the limiting member 112; when the limiting member 112 is in the retracted state, the mold core body 21 abuts against the bottom wall of the mounting groove.

[0050] The stepped groove design allows the limiting member 112 to form a rigid contact with the mold core body 21 in the ejected state. When the limiting member 112 is in the retracted state, the mold core body 21 directly fits against the bottom wall of the mounting groove, enabling the mold core body 21 to float up and down, thereby allowing the upper mold cutter frame 1 to engage and separate from the lower mold cutter pillow 4.

[0051] Furthermore, the upper mold core 2 also includes an elastic element 23, which is disposed between the mold core body 21 and the bottom wall of the mounting groove. One end of the elastic element 23 is connected to or abuts against the mold core body 21, and the other end of the elastic element 23 is connected to or abuts against the bottom wall of the mounting groove. Specifically, the elastic element 23 is a compression spring.

[0052] An elastic element 23 is provided between the mold core body 21 and the bottom wall of the mounting groove, which allows the mold core body 21 to float downward under its own weight and the elastic force of the elastic element 23, and can quickly push the mold core body 21 downward and abut against the workpiece 3 to be punched.

[0053] Furthermore, multiple elastic elements 23 are provided, and the multiple elastic elements 23 are distributed circumferentially along the core body 21. This arrangement ensures that the core body 21 is subjected to uniform force, thereby extending the service life of the core body 21.

[0054] Specifically, such as Figure 4 As shown, four elastic elements 23 are provided.

[0055] In this utility model, the process flow of the punching die for processing the bottom guard plate is as follows:

[0056] During operation, the part to be punched 3 is first placed on the lower die holder 4. Then, the limiting member 112 is switched to the ejection state, and at the same time, the upper die holder 1 moves downwards towards the lower die holder 4 to close the mold. Because the upper die core 2 is restricted by the limiting member 112, a certain distance is maintained between the upper die holder 1 and the lower die holder 4 to ensure that the cutting edge of the upper die holder 1 does not touch the lower die holder 4 (e.g., Figure 5 As shown), at this time, the part to be punched 3 is hot-pressed and pressure is maintained; after the pressure is maintained, the limiting component 11 is switched to the retracted state, and at the same time, the upper die cutter frame 1 moves upward away from the lower die cutter rest 4, and the part to be punched 3 begins to cool and shrink (as shown). Figure 6 (As shown); After the punched part 3 has cooled and shrunk, the upper die holder 1 moves downwards again towards the lower die holder 4 to close the mold. At this time, the limiting member 112 is in the retracted state, and the upper die core 2 is not restricted by the limiting member 112. The upper die holder 1 can engage with the lower die holder 4 to complete the punching of the part 3 to be punched (as shown); Figure 7 (As shown); Finally, the punching die is opened, the program is reset, and the operator takes out the punched product and the remaining material.

[0057] This utility model provides a punching system, including a second driving component and a punching die for processing the bottom guard plate according to any of the above-described technical solutions. The second driving component is used to drive the upper die cutter frame 1 to move closer to or away from the lower die cutter rest 4. Specifically, the second driving component is a press. By using the press to drive the upper die cutter frame 1 to move closer to or away from the lower die cutter rest 4, and in combination with the switching of the limiting component 112 between the ejection state and the retraction state, the punching of the part 3 to be punched can be completed quickly. The structure is simple, tooling investment is reduced, production processes are optimized, and production efficiency is improved.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A punching die for processing a bottom guard plate, characterized in that, include: The upper die cutter frame (1) has a mounting groove and a limit component (11) is provided on the upper die cutter frame (1). The limit component (11) has an ejection state and a retraction state. Upper mold core (2), which is fixedly installed in the mounting groove; The lower die holder (4) is located below the upper die frame (1). The upper die frame (1) can selectively move closer to or further away from the lower die holder (4). When the limiting component (11) is in the ejection state, the upper die frame (1) is separated from the lower die holder (4). When the limiting component (11) is in the retraction state, the upper die frame (1) and the lower die holder (4) are engaged.

2. The punching die for processing a bottom guard plate according to claim 1, characterized in that, The limiting component (11) includes a first driving member (113), a pull rod (111), and a limiting member (112). The first driving member (113) is installed on the outer wall of the upper die frame (1). The pull rod (111) is fixedly connected to the output end of the first driving member (113) and the pull rod (111) passes through the upper die frame (1). The limiting member (112) is fixedly connected to the pull rod (111). The first driving member (113) can drive the pull rod (111) to move along its own axis so that the limiting member (112) has the ejected state and the retracted state. When the limiting member (112) is in the ejected state, the upper mold core (2) abuts against the limiting member (112) to separate the upper mold cutter frame (1) from the lower mold cutter rest (4); when the limiting member (112) is in the retracted state, the upper mold core (2) abuts against the bottom wall of the mounting groove to engage the upper mold cutter frame (1) with the lower mold cutter rest (4).

3. The punching die for processing a bottom guard plate according to claim 2, characterized in that, The first driving component (113) is a cylinder.

4. The punching die for processing a bottom guard plate according to claim 2, characterized in that, The upper mold core (2) includes a core body (21) and a wear-resistant component (22). The core body (21) is connected to the upper mold cutter frame (1) by fasteners (24). The wear-resistant component (22) is disposed between the outer wall of the core body (21) and the inner wall of the mounting groove of the upper mold cutter frame (1).

5. A punching die for processing a bottom guard plate according to claim 4, characterized in that, Multiple wear-resistant parts (22) are provided, and the multiple wear-resistant parts (22) are distributed circumferentially along the core body (21).

6. A punching die for processing a bottom guard plate according to claim 4, characterized in that, The wear-resistant component (22) includes a body and an elastic wear-resistant layer covering at least a portion of the body, the wear rate of the elastic wear-resistant layer being less than the wear rate of the body, and the elastic wear-resistant layer forming at least a surface in contact with the inner wall of the mounting groove.

7. A punching die for processing a bottom guard plate according to claim 4, characterized in that, The upper mold core (2) also includes an elastic element (23), which is disposed between the mold core body (21) and the bottom wall of the mounting groove. One end of the elastic element (23) is connected to or abuts against the mold core body (21), and the other end of the elastic element (23) is connected to or abuts against the bottom wall of the mounting groove.

8. A punching die for processing a bottom guard plate according to claim 7, characterized in that, Multiple elastic elements (23) are provided, and the multiple elastic elements (23) are distributed circumferentially along the core body (21).

9. A punching die for processing a bottom guard plate according to claim 4, characterized in that, The mold core body (21) is provided with a stepped groove, and the limiting member (112) is movably disposed in the stepped groove. When the limiting member (112) is in the ejected state, the mold core body (21) abuts against the limiting member (112); when the limiting member (112) is in the retracted state, the mold core body (21) abuts against the bottom wall of the mounting groove.

10. A punching system, characterized in that, Includes a second driving member and a punching die for processing the bottom guard plate as described in any one of claims 1 to 9, wherein the second driving member is used to drive the upper die frame (1) to move closer to or away from the lower die rest (4).

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