Stamping dies and stamping methods

Abstract

This application relates to a stamping die and a stamping method. A first and second unloading member are spaced apart along the y-axis and form a processing groove for placing a sheet to be processed. A second preforming component, a second shaping component, and a second unloading member are movable with a limiting component along the x-axis. The first or second preforming component is movably inserted into the processing groove along the y-axis. The first shaping component is pressed against at least a portion of the preforming section along the y-axis, and the at least a portion of the preforming section is sandwiched between the first shaping component and the second unloading member. Alternatively, the second shaping component is pressed against at least a portion of the preforming section along the y-axis, and the at least a portion of the preforming section is sandwiched between the second shaping component and the first unloading member. The stamping die and stamping method provided by this application solve the problem that during the processing of a heat sink, the stamped portion is prone to twisting, deformation, or even rolling.

Description

Technical Field

[0001] This application relates to the field of heat sink manufacturing technology, and in particular to a stamping die and stamping method. Background Technology

[0002] In the field of heat exchangers, heat sinks are one of the core components. Heat sinks specifically include flat heat sinks, staggered heat sinks, and wavy heat sinks. Cam-type heat sink forming machines are commonly used equipment for stamping and processing the above-mentioned types of heat sinks. Using cam-type heat sink forming machines to process heat sinks has the characteristics of high production efficiency and low processing cost. Usually, the forming molds matched with cam-type heat sink forming machines adopt a fixed punch structure. However, the existing fixed punch structure has poor protection effect on the stamped part of the heat sink. The stamped part of the heat sink is prone to twisting, deformation, or even rolling. Moreover, this phenomenon is more serious in heat sinks with dense tooth pitch and thicker material. Summary of the Invention

[0003] Therefore, it is necessary to provide a stamping die and a stamping process to solve the problem that the stamped part of the heat sink is prone to twisting, deformation or even rolling during the processing of the heat sink.

[0004] The stamping die provided in this application includes a first preforming component, a first shaping component, a first unloading component, a limiting component, a second preforming component, a second shaping component, and a second unloading component; the first and second unloading components are positioned at both ends of the limiting component along the y-axis direction; the first and second unloading components are spaced apart along the y-axis direction to form a processing groove, the processing groove being used to place the sheet to be processed; the second preforming component, the second shaping component, and the second unloading component can be movably engaged with the limiting component along the x-axis direction; the first or second preforming component can be movably inserted into the processing groove along the y-axis direction, causing the sheet to be processed to bend into a preforming segment; the first shaping component can be pressed against at least a portion of the preforming segment along the y-axis direction and the at least a portion of the preforming segment is sandwiched between the first shaping component and the second unloading component, or the second shaping component can be pressed against at least a portion of the preforming segment along the y-axis direction and the at least a portion of the preforming segment is sandwiched between the second shaping component and the first unloading component; wherein, the x-axis and y-axis are perpendicular to each other.

[0005] In one embodiment, the first preforming component and the first shaping component are respectively disposed on the side of the first unloading member away from the second unloading member, and the second preforming component and the second shaping component are respectively disposed on the side of the second unloading member away from the first unloading member.

[0006] In one embodiment, the first preforming component includes a first preforming punch and a first preforming fixing member, and the first shaping component includes a first shaping punch and a first shaping fixing member. The first shaping fixing member is movably disposed on the side of the first unloading member opposite to the second unloading member, and one end of the first shaping punch is fixedly connected to the first shaping fixing member, while the other end is movably disposed along the y-axis direction through the first unloading member and can be inserted into the processing groove for stamping and bending the plate to be processed; the first preforming fixing member is movably disposed on the side of the first shaping fixing member opposite to the first unloading member, and one end of the first preforming punch is fixedly connected to the first preforming fixing member, while the other end is movably disposed along the y-axis direction through the first shaping fixing member and the first unloading member in sequence and can be inserted into the processing groove for pressing the preforming section.

[0007] In one embodiment, there are multiple first shaping punches, and the multiple first shaping punches are arranged side by side along the x-axis.

[0008] In one embodiment, there is one and only one first preforming punch.

[0009] In one embodiment, the stamping die further includes a first compression elastic element and a second compression elastic element. One end of the first compression elastic element is connected to a first preforming fixing element, and the other end is connected to a first shaping fixing element. One end of the second compression elastic element is connected to the first shaping fixing element, and the other end is connected to a first unloading element.

[0010] In one embodiment, the second preforming component includes a second preforming punch and a second preforming fixture, and the second shaping component includes a second shaping punch and a second shaping fixture. The second shaping fixture is movably disposed on the side of the second unloading component opposite to the first unloading component, and one end of the second shaping punch is fixedly connected to the second shaping fixture, while the other end is movably disposed along the y-axis direction through the second unloading component and can be inserted into the processing groove for stamping and bending the plate to be processed; the second preforming fixture is movably disposed on the side of the second shaping fixture opposite to the second unloading component, and one end of the second preforming punch is fixedly connected to the second preforming fixture, while the other end is movably disposed along the y-axis direction through the second shaping fixture and the second unloading component and can be inserted into the processing groove for pressing the preforming section.

[0011] In one embodiment, there are multiple second shaping punches, and the multiple second shaping punches are arranged side by side along the x-axis direction.

[0012] In one embodiment, there is one and only one second preforming punch.

[0013] In one embodiment, the stamping die further includes a third compression elastic member and a fourth compression elastic member. One end of the third compression elastic member is connected to the second preforming fixing member, and the other end is connected to the second shaping fixing member. One end of the fourth compression elastic member is connected to the second shaping fixing member, and the other end is connected to the second unloading member.

[0014] This application also provides a stamping method, which uses the stamping die described in any of the above embodiments to process the sheet metal to be processed. The stamping method includes the following steps:

[0015] The first and second preforming components are used to alternately stamp the sheet to be processed to form a partial preforming segment;

[0016] Adjust the stamping die so that the first preforming component, the second preforming component, the first shaping component, and the second shaping component are staggered along the x-axis;

[0017] The second preforming component and the second shaping component are respectively movably inserted into the processing groove along the y-axis direction, and the second shaping component is pressed against the second side of the preforming section along the y-axis direction, so that the corresponding preforming section is sandwiched between the second shaping component and the first unloading component.

[0018] The first shaping component is movably inserted into the processing groove along the y-axis direction, and the first shaping component is pressed against the first side of the pre-forming section along the y-axis direction and applies extrusion force to the pre-forming section so as to reduce the groove width of the pre-forming section along the x-axis direction.

[0019] The first preforming component is movably inserted into the processing groove along the y-axis direction, causing the plate to be processed to bend and continue to form a preforming segment;

[0020] The second preforming component and the second shaping component are removed from the processing tank, and the second preforming component, the second shaping component and the second unloading component are moved a preset distance along the x-axis towards the feeding end, so that the second preforming component, the first preforming component, the second shaping component and the first shaping component are staggered along the x-axis.

[0021] The second shaping component is movably inserted into the processing groove along the y-axis direction, and the second shaping component is pressed against the second side of the pre-forming section along the y-axis direction and applies extrusion force to the pre-forming section so that the groove width of the pre-forming section along the x-axis direction is reduced.

[0022] The second preforming component is movably inserted into the processing groove along the y-axis direction, causing the plate to be processed to bend and continue to form a preforming section;

[0023] The first preforming component and the first shaping component are removed from the processing tank, and the second preforming component, the second shaping component, and the second unloading component are moved a preset distance along the x-axis toward the discharge end, so that the first preforming component, the second preforming component, the first shaping component, and the second shaping component are staggered along the x-axis.

[0024] Repeat the above process to continue processing the plates to be processed.

[0025] Compared with the prior art, the stamping die and stamping method provided in this application, since the second forming component and the first forming component are respectively pressed onto both sides of the preformed section, when the first forming component applies extrusion pressure to the preformed section, the preformed section will also be subjected to the reaction force of the second forming component. Under the extrusion action of the first forming component and the second forming component, the rounded corners at the bends of the preformed section will deform in opposite directions. As a result, the groove width of the preformed section along the x-axis will decrease accordingly, thereby making the structure of the preformed section more compact.

[0026] Similarly, since the second shaping component and the first shaping component are respectively pressed onto both sides of the preformed section, when the second shaping component applies extrusion pressure to the preformed section, the preformed section will also be subjected to the reaction force of the first shaping component. Under the extrusion action of the first shaping component and the second shaping component, the rounded corners at the bends of the preformed section will deform in the opposite direction. As a result, the groove width of the preformed section along the x-axis will decrease, thereby making the structure of the preformed section more compact.

[0027] Because the pre-formed segments are firmly clamped and fixed within the processing groove by the first and second shaping components, the sheet to be processed cannot undergo overall tumbling deformation when the first pre-formed component bends it, thus greatly improving the processing accuracy of the new pre-formed segments. Furthermore, because the pre-formed segments are staggered and limited by the first and second shaping components, during the stamping process of the sheet to be processed, the end of the sheet near the pre-formed segment (defined as the discharge end) will not feed towards the bottom of the first pre-formed component. Instead, only the end of the sheet away from the pre-formed segment (defined as the feed end) feeds towards the bottom of the first pre-formed component to form a new pre-formed segment. Clearly, the first pre-formed component is closer to the feed end of the sheet to be processed than the first shaping component, and the second pre-formed component is also closer to the feed end of the sheet to be processed than the second shaping component. This effectively ensures that the sheet to be processed can be continuously fed from the infeed end without affecting the outlet end, thus ensuring that the pre-formed section will not be twisted or deformed.

[0028] Similarly, because the pre-formed segment is firmly clamped and fixed in the processing groove by the first and second shaping components, the sheet to be processed cannot undergo overall tumbling deformation when the second pre-formed component bends it, thus greatly improving the processing accuracy of the new pre-formed segment. Furthermore, because the pre-formed segment is staggered and limited by the first and second shaping components, during the stamping process of the sheet to be processed, the discharge end of the sheet will not feed towards the bottom of the second pre-formed component; only the feed end will feed towards the bottom to form a new pre-formed segment. This effectively ensures that the sheet to be processed can continuously feed from the feed end without affecting the discharge end, thus ensuring that the pre-formed segment will not twist or deform. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A front view of a stamping die provided in this application;

[0031] Figure 2 A top view of a stamping die provided in this application;

[0032] Figure 3 for Figure 2 The sectional view at point AA is shown.

[0033] Figure 4 A detailed enlarged view of a stamping die and a sheet to be processed according to an embodiment provided in this application;

[0034] Figures 5-15 A flowchart illustrating the process of a stamping die according to an embodiment of this application.

[0035] Reference numerals: 100, First preforming component; 110, First preforming punch; 120, First preforming fixing component; 200, First shaping component; 210, First shaping punch; 220, First shaping fixing component; 310, First unloading component; 320, Second unloading component; 400, Limiting component; 410, Limiting plate; 500, Second preforming component; 510, Second preforming punch; 520, Second preforming fixing component; 600, Second shaping component; 610, Second shaping punch; 620, Second shaping fixing component; 710, Processing groove; 720, Plate to be processed; 730, Preforming section; 810, First compression elastic component; 820, Second compression elastic component; 830, Third compression elastic component; 840, Fourth compression elastic component; 850, Fastener; 860, Guide component; 910, First worktable; 920, Second worktable. Detailed Implementation

[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0042] In the field of heat exchangers, heat sinks are one of the core components. Heat sinks specifically include flat heat sinks, staggered heat sinks, and wavy heat sinks. Cam-type heat sink forming machines are commonly used equipment for stamping and processing the above-mentioned types of heat sinks. Using cam-type heat sink forming machines to process heat sinks has the characteristics of high production efficiency and low processing cost. Usually, the forming molds matched with cam-type heat sink forming machines adopt a fixed punch structure. However, the existing fixed punch structure has poor protection effect on the stamped part of the heat sink. The stamped part of the heat sink is prone to twisting, deformation, or even rolling. Moreover, this phenomenon is more serious in heat sinks with dense tooth pitch and thicker material.

[0043] Please see Figures 1-15 To address the problem that the stamped portion of a heat sink is prone to twisting, deformation, or even tumbling during processing, this application provides a stamping die and a stamping method. The stamping die includes a first pre-forming component 100, a first shaping component 200, a first unloading component 310, a limiting component 400, a second pre-forming component 500, a second shaping component 600, and a second unloading component 320. For ease of description, a two-dimensional coordinate system including mutually perpendicular x-axis and y-axis is established.

[0044] like Figure 3 As shown, the first unloading component 310 and the second unloading component 320 are positioned at both ends of the limiting assembly 400 along the y-axis direction. It should be noted that being positioned at both ends of the limiting assembly 400 along the y-axis direction means that the first unloading component 310 and the second unloading component 320 are relatively fixed to the limiting assembly 400 along the y-axis direction, but does not mean that the first unloading component 310 and the second unloading component 320 are also relatively fixed to the limiting assembly 400 along the x-axis direction or other directions.

[0045] like Figure 3 As shown, the first unloading member 310 and the second unloading member 320 are spaced apart along the y-axis to form a processing groove 710. The processing groove 710 is used to place the plate to be processed 720 (including but not limited to heat sinks, fins, and chips). It should be noted that the first unloading member 310 and the second unloading member 320 are usually placed in a horizontally arranged plate shape. Therefore, the processing groove 710 is also a horizontally extending structure, and the plate to be processed 720 is also placed horizontally in the processing groove 710. Furthermore, the first preforming assembly 100, the first shaping assembly 200, the second preforming assembly 500, and the second shaping assembly 600 all press the plate to be processed 720 along a direction perpendicular to the horizontal plane.

[0046] like Figure 3 As shown, the second preforming component 500, the second shaping component 600, and the second unloading component 320 can move and engage with the limiting component 400 along the x-axis direction. It should be noted that the second preforming component 500, the second shaping component 600, and the second unloading component 320 can move as a whole along the x-axis direction, or they can move separately along the x-axis direction, as long as the stable engagement of the three components is ensured.

[0047] like Figure 3 and Figure 4 As shown, the first preforming component 100 or the second preforming component 500 can be movably inserted into the processing groove 710 along the y-axis direction, and the plate to be processed 720 is bent to form a preforming section 730. The first shaping component 200 can be pressed onto at least a portion of the preforming section 730 along the y-axis direction and the at least a portion of the preforming section 730 is sandwiched between the first shaping component 200 and the second unloading component 320. Alternatively, the second shaping component 600 can be pressed onto at least a portion of the preforming section 730 along the y-axis direction and the at least a portion of the preforming section 730 is sandwiched between the second shaping component 600 and the first unloading component 310.

[0048] It should be noted that the sheet to be processed 720 is generally in a continuous S-shaped bend. Therefore, the preforming section 730 generally requires the first preset forming component and the second preset forming component to work alternately so that the sheet to be processed 720 can be processed into shape.

[0049] It should be noted that the first preforming component 100, the first shaping component 200, the second preforming component 500, the second shaping component 600, and the second unloading component 320 can be driven by a cylinder, a motor, or a hydraulic cylinder.

[0050] Please see Figures 5-15 Specifically, the stamping process using this stamping die includes the following steps:

[0051] Step 1: The first preforming component 100 and the second preforming component 500 are used to alternately press and process the sheet 720 to be processed to form a partial preforming segment 730.

[0052] Step 2: Adjust the stamping die so that the first preforming component 100, the second preforming component 500, the first shaping component 200 and the second shaping component 600 are staggered along the x-axis.

[0053] Step 3: The second preforming component 500 and the second shaping component 600 are respectively movably inserted into the processing groove 710 along the y-axis direction, and the second shaping component 600 is pressed against the second side of the preforming section 730 along the y-axis direction, so that the corresponding preforming section 730 is sandwiched between the second shaping component 600 and the first unloading component 310.

[0054] Step four: The first shaping component 200 is movably inserted into the processing groove 710 along the y-axis direction, and the first shaping component 200 is pressed against the first side of the pre-forming section 730 along the y-axis direction and applies extrusion force to the pre-forming section 730 to reduce the groove width of the pre-forming section 730 along the x-axis direction, thereby achieving the shaping purpose of the pre-forming section 730; wherein, the first side and the second side are the two sides of the plate to be processed 720 along the y-axis direction;

[0055] It should be noted that since the second shaping component 600 and the first shaping component 200 are respectively pressed onto both sides of the preformed section 730, when the first shaping component 200 applies extrusion pressure to the preformed section 730, the preformed section 730 will also be subjected to the reaction force of the second shaping component 600. Under the extrusion action of the first shaping component 200 and the second shaping component 600, the rounded corners at the bends of the preformed section 730 will deform in opposite directions. Specifically, r2 decreases and becomes less than r1, and t2 decreases and becomes less than t1. As a result, the groove width of the preformed section 730 along the x-axis will decrease accordingly, thereby making the structure of the preformed section 730 more compact.

[0056] Step 5: The first preformed component 100 is movably inserted into the processing groove 710 along the y-axis direction, and the plate to be processed 720 is bent and continues to form the preformed section 730.

[0057] Since the preformed segment 730 is firmly clamped and fixed in the processing groove 710 by the first forming component 200 and the second forming component 600, the sheet 720 to be processed cannot undergo overall rolling deformation when the first preformed component 100 bends it, thus greatly improving the processing accuracy of the new preformed segment 730. Furthermore, since the preformed segment 730 is staggered and limited by the first forming component 200 and the second forming component 600, during the stamping process of the sheet 720, the end of the sheet 720 closest to the preformed segment 730 (defined as the discharge end) will not feed towards the bottom of the first preformed component 100. Instead, only the end of the sheet 720 furthest from the preformed segment 730 (defined as the feed end) feeds towards the bottom of the first preformed component 100 to form the new preformed segment 730. Clearly, the first preforming component 100 is closer to the feed end of the sheet 720 to be processed than the first shaping component 200, and the second preforming component 500 is also closer to the feed end of the sheet 720 to be processed than the second shaping component 600. This effectively ensures that the sheet 720 to be processed can be continuously fed from the feed end without affecting the discharge end, thereby ensuring that the already formed preforming segment 730 will not be twisted or deformed.

[0058] Step six: The second preforming component 500 and the second shaping component 600 are moved away from the processing tank 710, and the second preforming component 500, the second shaping component 600 and the second unloading component 320 are moved a preset distance along the x-axis toward the feeding end, so that the second preforming component 500, the first preforming component 100, the second shaping component 600 and the first shaping component 200 are staggered along the x-axis.

[0059] Step 7: The second shaping component 600 is movably inserted into the processing groove 710 along the y-axis direction, and the second shaping component 600 is pressed against the second side of the pre-forming section 730 along the y-axis direction and applies extrusion force to the pre-forming section 730 to reduce the groove width of the pre-forming section 730 along the x-axis direction, thereby achieving the shaping purpose of the pre-forming section 730.

[0060] Similarly, since the second shaping component 600 and the first shaping component 200 are respectively pressed onto both sides of the preformed section 730, when the second shaping component 600 applies extrusion pressure to the preformed section 730, the preformed section 730 will also be subjected to the reaction force of the first shaping component 200. Under the extrusion action of the first shaping component 200 and the second shaping component 600, the rounded corners at the bends of the preformed section 730 will deform in the opposite direction. As a result, the groove width of the preformed section 730 along the x-axis will decrease, thereby making the structure of the preformed section 730 more compact.

[0061] Step 8: The second preformed component 500 is movably inserted into the processing groove 710 along the y-axis direction, and the plate to be processed 720 is bent and continues to form the preformed section 730.

[0062] Similarly, since the pre-formed segment 730 is firmly clamped and fixed in the processing groove 710 by the first forming component 200 and the second forming component 600, the sheet 720 to be processed cannot undergo overall tumbling deformation when the second pre-formed component 500 bends it, thus greatly improving the processing accuracy of the new pre-formed segment 730. Furthermore, since the pre-formed segment 730 is staggered and limited by the first forming component 200 and the second forming component 600, during the stamping process of the sheet 720, the discharge end of the sheet 720 will not feed towards the bottom of the second pre-formed component 500; only the feed end of the sheet 720 feeds towards the bottom of the second pre-formed component 500 to form the new pre-formed segment 730. In this way, it is effectively ensured that the sheet to be processed 720 can be continuously fed from the feed end without affecting the discharge end, thereby ensuring that the pre-formed section 730 will not be twisted or deformed.

[0063] Step nine: The first preforming component 100 and the first shaping component 200 are moved away from the processing tank 710, and the second preforming component 500, the second shaping component 600 and the second unloading component 320 are moved a preset distance along the x-axis toward the discharge end, so that the first preforming component 100, the second preforming component 500, the first shaping component 200 and the second shaping component 600 are staggered along the x-axis.

[0064] Step 10: Repeat the above process (steps 3 to 9) to continue processing the board 720 to be processed.

[0065] It should be noted that since the preformed segment 730 processed in step one does not have the pressing (fixing) process of the first shaping component 200 and the second shaping component 600, the preformed segment 730 processed in step one needs to be cut off when the entire plate to be processed 720 is processed to ensure the processing accuracy of the entire plate to be processed 720.

[0066] To improve the integration of stamping dies, in one embodiment, such as Figure 3 As shown, the first preforming component 100 and the first shaping component 200 are respectively disposed on the side of the first unloading component 310 away from the second unloading component 320, and the second preforming component 500 and the second shaping component 600 are respectively disposed on the side of the second unloading component 320 away from the first unloading component 310.

[0067] Specifically, in one embodiment, such as Figure 3 As shown, the first preforming assembly 100 includes a first preforming punch 110 and a first preforming fixing member 120, and the first shaping assembly 200 includes a first shaping punch 210 and a first shaping fixing member 220. The first shaping fixing member 220 is movably disposed on the side of the first unloading member 310 opposite to the second unloading member 320, and one end of the first shaping punch 210 is fixedly connected to the first shaping fixing member 220, and the other end is movably disposed through the first unloading member 310 along the y-axis direction and can be inserted into the processing groove 710 for stamping and bending the plate 720 to be processed. The first preforming fixing member 120 is movably disposed on the side of the first shaping fixing member 220 away from the first unloading member 310, and one end of the first preforming punch 110 is fixedly connected to the first preforming fixing member 120, and the other end is movably disposed along the y-axis direction through the first shaping fixing member 220 and the first unloading member 310 and can be inserted into the processing groove 710 for pressing the preforming section 730.

[0068] With this configuration, the first preforming punch 110 can be moved via the first preforming fixing member 120, and the first shaping punch 210 can be moved via the first shaping fixing member 220. Furthermore, the first unloading member 310 can limit and guide the movement of the first shaping punch 210, thereby improving the pressing and shaping accuracy of the first shaping assembly 200. Similarly, the first unloading member 310 and the first shaping fixing member 220 can limit and guide the movement of the first preforming punch 110, thereby improving the stamping accuracy of the first preforming assembly 100.

[0069] Furthermore, in one embodiment, as Figure 3 As shown, there are multiple first shaping punches 210, and the multiple first shaping punches 210 are arranged side by side along the x-axis. Specifically, the number of first shaping punches 210 can be 2, 3 or more, which will not be listed here.

[0070] This can greatly improve the crimping and shaping efficiency of the preformed section 730.

[0071] It should be noted that, in order to ensure that the sheet to be processed 720 is fed only from the feed end, in one embodiment, such as Figure 3As shown, there is only one first preforming punch 110.

[0072] Similarly, in one embodiment, such as Figure 3 As shown, the second preforming assembly 500 includes a second preforming punch 510 and a second preforming fixing member 520, and the second shaping assembly 600 includes a second shaping punch 610 and a second shaping fixing member 620. The second shaping fixing member 620 is movably disposed on the side of the second unloading member 320 opposite to the first unloading member 310, and one end of the second shaping punch 610 is fixedly connected to the second shaping fixing member 620, while the other end is movably disposed through the second unloading member 320 along the y-axis direction and can be inserted into the processing groove 710 for stamping and bending the plate 720 to be processed. The second preforming fixing member 520 is movably disposed on the side of the second shaping fixing member 620 away from the second unloading member 320, and one end of the second preforming punch 510 is fixedly connected to the second preforming fixing member 520, and the other end is movably disposed along the y-axis direction through the second shaping fixing member 620 and the second unloading member 320 and can be inserted into the processing groove 710 for pressing the preforming section 730.

[0073] With this configuration, the second preforming punch 510 can be moved via the second preforming fixing member 520, and the second shaping punch 610 can also be moved via the second shaping fixing member 620. Furthermore, the second unloading member 320 can limit and guide the movement of the second shaping punch 610, thereby improving the pressing and shaping accuracy of the second shaping assembly 600. Similarly, the second unloading member 320 and the second shaping fixing member 620 can limit and guide the movement of the second preforming punch 510, thereby improving the stamping accuracy of the second preforming assembly 500.

[0074] Furthermore, in one embodiment, as Figure 3 As shown, there are multiple second shaping punches 610, and the multiple second shaping punches 610 are arranged side by side along the x-axis. Specifically, the number of second shaping punches 610 can be 2, 3 or more, which will not be listed here.

[0075] This can greatly improve the crimping and shaping efficiency of the preformed section 730.

[0076] It should be noted that, in order to ensure that the sheet to be processed 720 is fed only from the feed end, in one embodiment, such as Figure 3 As shown, there is only one second preforming punch 510.

[0077] In one embodiment, the limiting component 400 includes a plurality of limiting plates 410 spaced apart, and the plurality of limiting plates 410 are respectively fixedly connected to the periphery of the first unloading member 310 or fixedly connected to the opposite ends of the first unloading member 310.

[0078] It should be noted that the height of the limiting component 400 is adjustable. Specifically, the stamping die also includes a height adjusting component connected to one end of the limiting component 400 to adjust the height of the limiting component 400.

[0079] In one embodiment, such as Figure 3 As shown, the stamping die also includes a first compression elastic element 810 and a second compression elastic element 820. One end of the first compression elastic element 810 is connected to the first preforming fixing element 120, and the other end is connected to the first shaping fixing element 220. One end of the second compression elastic element 820 is connected to the first shaping fixing element 220, and the other end is connected to the first unloading element 310.

[0080] Thus, under the elastic force of the first compression elastic member 810 and the second compression elastic member 820, the first pre-forming fixing member 120 and the first shaping fixing member 220 can be quickly reset when not subjected to external thrust.

[0081] Furthermore, in one embodiment, the elastic coefficient of the first compression elastic member 810 is greater than the elastic coefficient of the second compression elastic member 820.

[0082] Since the first shaping fastener 220 is located between the first preforming fastener 120 and the first unloading fastener 310, the first compression elastic member 810 has a larger elastic coefficient, which is beneficial for the first preforming fastener 120 to push the first shaping fastener 220 to overcome the force of the second compression elastic member 820 and move toward the first unloading fastener 310 through the first compression elastic member 810.

[0083] Furthermore, in one embodiment, the elastic coefficient of the second compression elastic member 820 is greater than the coefficient of friction between the first forming punch 210 and the preforming section 730. This facilitates the second compression elastic member 820 in pushing the first forming fixing member 220 to overcome the friction between the first forming punch 210 and the preforming section 730 and move toward the first unloading member 310.

[0084] Furthermore, in one embodiment, the elastic coefficient of the first compression elastic member 810 is greater than the friction coefficient between the first shaping punch 210 and the preforming section 730 plus the friction coefficient between the first preforming punch 110 and the preforming section 730. This facilitates the first compression elastic member 810 to simultaneously push the first shaping fixing member 220 and the first preforming fixing member 120 toward the first unloading member 310.

[0085] In one embodiment, such as Figure 3As shown, the stamping die also includes a third compression elastic element 830 and a fourth compression elastic element 840. One end of the third compression elastic element 830 is connected to the second preforming fixing element 520, and the other end is connected to the second shaping fixing element 620. One end of the fourth compression elastic element 840 is connected to the second shaping fixing element 620, and the other end is connected to the second unloading element 320.

[0086] Thus, under the elastic force of the third compression elastic member 830 and the fourth compression elastic member 840, the second pre-forming fixing member 520 and the second shaping fixing member 620 can be quickly reset when not subjected to external thrust.

[0087] Furthermore, in one embodiment, the elastic coefficient of the third compression elastic member 830 is greater than the elastic coefficient of the fourth compression elastic member 840.

[0088] Since the second shaping fastener 620 is located between the second preforming fastener 520 and the second unloading fastener 320, the third compression elastic element 830 has a larger elastic coefficient, which is beneficial for the second preforming fastener 520 to push the second shaping fastener 620 to overcome the force of the fourth compression elastic element 840 and move toward the second unloading fastener 320 through the third compression elastic element 830.

[0089] Furthermore, in one embodiment, the elastic coefficient of the fourth compression elastic member 840 is greater than the coefficient of friction between the second forming punch 610 and the preforming section 730. This facilitates the fourth compression elastic member 840 in pushing the second forming fixing member 620 to overcome the friction between the second forming punch 610 and the preforming section 730 and move toward the second unloading member 320.

[0090] Furthermore, in one embodiment, the elastic coefficient of the third compression elastic member 830 is greater than the friction coefficient between the second forming punch 610 and the preforming section 730 plus the friction coefficient between the second preforming punch 510 and the preforming section 730. This facilitates the third compression elastic member 830 to simultaneously push the second forming fixing member 620 and the second preforming fixing member 520 to move synchronously toward the second unloading member 320.

[0091] In one embodiment, such as Figure 2 As shown, the stamping die also includes a fastener 850 and a guide 860. The fastener 850 is used to connect adjacent parts, and the guide 860 can be sequentially inserted into multiple parts so that each part can move along the extension direction of the guide 860.

[0092] In one embodiment, such as Figure 3As shown, the stamping die also includes a first worktable 910 and a second worktable 920. The first worktable 910 is connected to the end of the first preforming fixture 120 that is away from the first shaping fixture 220. The second worktable 920 is connected to the end of the second preforming fixture 520 that is away from the second shaping fixture 620.

[0093] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A stamping die, characterized in that, It includes a first preforming component (100), a first shaping component (200), a first unloading component (310), a limiting component (400), a second preforming component (500), a second shaping component (600), and a second unloading component (320); The first unloading component (310) and the second unloading component (320) are positioned at both ends of the limiting assembly (400) along the y-axis direction; The first unloading component (310) and the second unloading component (320) are spaced apart along the y-axis and form a processing groove (710), which is used to place the plate to be processed (720). The second preforming component (500), the second shaping component (600), and the second unloading component (320) are capable of movingly engaging with the limiting component (400) along the x-axis direction; The first preforming component (100) or the second preforming component (500) can be movably inserted into the processing groove (710) along the y-axis direction, and bend the plate to be processed (720) to form a preforming section (730). The first shaping component (200) can be pressed along the y-axis direction onto at least a portion of the preforming section (730) and the at least a portion of the preforming section (730) is sandwiched between the first shaping component (200) and the second unloading component (320). Alternatively, the second shaping component (600) can be pressed along the y-axis direction onto at least a portion of the preforming section (730) and the at least a portion of the preforming section (730) is sandwiched between the second shaping component (600) and the first unloading component (310). The x-axis and y-axis are perpendicular to each other; The x-axis is horizontal, and the y-axis is vertical.

2. The stamping die according to claim 1, characterized in that, The first preforming component (100) and the first shaping component (200) are respectively disposed on the side of the first unloading component (310) away from the second unloading component (320), and the second preforming component (500) and the second shaping component (600) are respectively disposed on the side of the second unloading component (320) away from the first unloading component (310).

3. The stamping die according to claim 1, characterized in that, The first preforming component (100) includes a first preforming punch (110) and a first preforming fixing member (120). The first shaping component (200) includes a first shaping punch (210) and a first shaping fixing member (220). The first shaping fixing member (220) is movably disposed on the side of the first unloading member (310) away from the second unloading member (320). One end of the first shaping punch (210) is fixedly connected to the first shaping fixing member (220), and the other end is movably disposed through the first unloading member (310) along the y-axis direction and can be inserted into the processing groove (710) for stamping and bending the plate to be processed (720). The first preforming fixing member (120) is movably disposed on the side of the first shaping fixing member (220) away from the first unloading member (310), and one end of the first preforming punch (110) is fixedly connected to the first preforming fixing member (120), and the other end is movably disposed along the y-axis direction through the first shaping fixing member (220) and the first unloading member (310) and can be inserted into the processing groove (710) for pressing the preforming section (730).

4. The stamping die according to claim 3, characterized in that, There are multiple first shaping punches (210), and the multiple first shaping punches (210) are arranged side by side along the x-axis direction.

5. The stamping die according to claim 3, characterized in that, There is one and only one first preformed punch (110).

6. The stamping die according to claim 3, characterized in that, It also includes a first compression elastic element (810) and a second compression elastic element (820). One end of the first compression elastic element (810) is connected to the first preforming fixing element (120), and the other end is connected to the first shaping fixing element (220). One end of the second compression elastic element (820) is connected to the first shaping fixing element (220), and the other end is connected to the first unloading element (310).

7. The stamping die according to claim 1, characterized in that, The second preforming component (500) includes a second preforming punch (510) and a second preforming fixture (520). The second shaping component (600) includes a second shaping punch (610) and a second shaping fixture (620). The second shaping fixture (620) is movably disposed on the side of the second unloading component (320) away from the first unloading component (310). One end of the second shaping punch (610) is fixedly connected to the second shaping fixture (620), and the other end is movably disposed through the second unloading component (320) along the y-axis and can be inserted into the processing groove (710) for stamping and bending the plate to be processed (720). The second preforming fixing member (520) is movably disposed on the side of the second shaping fixing member (620) away from the second unloading member (320), and one end of the second preforming punch (510) is fixedly connected to the second preforming fixing member (520), and the other end is movably disposed along the y-axis direction through the second shaping fixing member (620) and the second unloading member (320) and can be inserted into the processing groove (710) for pressing the preforming section (730).

8. The stamping die according to claim 7, characterized in that, The number of the second shaping punches (610) is multiple, and the multiple second shaping punches (610) are arranged side by side along the x-axis direction.

9. The stamping die according to claim 7, characterized in that, There is only one second preforming punch (510).

10. The stamping die according to claim 7, characterized in that, It also includes a third compression elastic element (830) and a fourth compression elastic element (840). One end of the third compression elastic element (830) is connected to the second preforming fixing element (520), and the other end is connected to the second shaping fixing element (620). One end of the fourth compression elastic element (840) is connected to the second shaping fixing element (620), and the other end is connected to the second unloading element (320).

11. A stamping process, characterized in that, The stamping process involves processing a sheet metal (720) using a stamping die as described in any one of claims 1-10. The stamping process includes the following steps: The first preforming component (100) and the second preforming component (500) are used to alternately stamp the sheet to be processed (720) to form a partial preforming segment (730). Adjust the stamping die so that the first preforming component (100), the second preforming component (500), the first shaping component (200), and the second shaping component (600) are staggered along the x-axis; The second preforming component (500) and the second shaping component (600) are respectively movably inserted into the processing groove (710) along the y-axis direction, and the second shaping component (600) is pressed against the second side of the preforming section (730) along the y-axis direction, and the corresponding preforming section (730) is sandwiched between the second shaping component (600) and the first unloading component (310); The first shaping component (200) is movably inserted into the processing groove (710) along the y-axis direction, and the first shaping component (200) is pressed against the first side of the preformed section (730) along the y-axis direction and applies extrusion force to the preformed section (730) to reduce the groove width of the preformed section (730) along the x-axis direction; The first preformed component (100) is movably inserted into the processing groove (710) along the y-axis direction, and the plate to be processed (720) is bent and continues to form a preformed segment (730). The second preforming component (500) and the second shaping component (600) are moved away from the processing groove (710), and the second preforming component (500), the second shaping component (600) and the second unloading component (320) are moved a preset distance along the x-axis toward the feeding end, so that the second preforming component (500), the first preforming component (100), the second shaping component (600) and the first shaping component (200) are staggered along the x-axis. The second shaping component (600) is movably inserted into the processing groove (710) along the y-axis direction, and the second shaping component (600) is pressed against the second side of the preformed section (730) along the y-axis direction and applies extrusion force to the preformed section (730) to reduce the groove width of the preformed section (730) along the x-axis direction; The second preformed component (500) is movably inserted into the processing groove (710) along the y-axis direction, and the plate to be processed (720) is bent and continues to form a preformed segment (730). The first preforming component (100) and the first shaping component (200) are moved away from the processing groove (710), and the second preforming component (500), the second shaping component (600) and the second unloading component (320) are moved a preset distance along the x-axis toward the discharge end, so that the first preforming component (100), the second preforming component (500), the first shaping component (200) and the second shaping component (600) are staggered along the x-axis. Repeat the above steps to continue processing the plate to be processed (720).

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