Stamping die

Abstract

The utility model relates to a stamping die. The stamping die comprises a first die, a second die, a first cutting knife, a second cutting knife and a third cutting knife. The first die and the first cutting knife are located at the first position, when die assembly machining is conducted, the matching end face abuts against the auxiliary die molded surface in a matched mode, and the third cutting knife moves along the first cutting knife to be used for cutting a to-be-machined part in a matched mode; and the first die and the first cutting knife are located at the second position, a gap is formed between the matched end face and the auxiliary die molded surface during die assembly machining, and the second cutting knife moves to be used for cutting the to-be-machined part. According to the same stamping die, the development cost of at least one die can be reduced, and the equipment cost for contour stamping is effectively reduced. And meanwhile, the production efficiency can be greatly improved because the die does not need to be switched. In addition, the universality and the flexibility of the stamping die can be enhanced, so that the stamping die can better adapt to market demand changes.

Description

Technical Field

[0001] The present application belongs to the technical field of stamping die manufacturing, and specifically relates to a stamping die. Background Art

[0002] As the automotive industry continues to demand more diverse sheet metal parts, the same sheet metal part often requires different contours to accommodate different vehicle configurations. Existing stamping dies are limited in versatility, often only capable of producing one contour. Consequently, when faced with varying contours, the only way to accommodate these requirements is to add a new set of trimming dies, impacting production efficiency and increasing costs. Utility Model Content

[0003] The present application provides a stamping die to solve the technical problems that existing dies are not versatile, affect production efficiency and increase costs.

[0004] To solve the above technical problems, a technical solution adopted in the present application is: a stamping die, comprising: a first die, the first die being provided with a first model surface; a second die, the second die being provided with a second model surface that cooperates with the first model surface when the die is closed; a first cutting knife, the end surface of the first cutting knife being provided with an auxiliary model surface, the first die and the first cutting knife being relatively movable to switch between a first position and a second position, in the first position, the first model surface and the auxiliary model surface being connected to each other to form a continuous forming die surface, and in the second position, the first model surface and the auxiliary model surface being staggered with each other; a second cutting knife, wherein the second cutting knife is provided with a mating end surface that cooperates with the auxiliary model surface when the die is closed; a third cutting knife; when the first die and the first cutting knife are in the first position, the mating end surface is pressed against the auxiliary model surface when the die is closed, and the third cutting knife moves along the first cutting knife to cooperate with and cut the part to be processed; when the first die and the first cutting knife are in the second position, there is a gap between the mating end surface and the auxiliary model surface when the die is closed, and the second cutting knife moves to cut the part to be processed.

[0005] According to one embodiment of the present application, the stamping die includes: a first die body, the first die is fixed to the first die body; a driving member, the driving member is arranged on the first die body, the first cutting knife is connected to the driving member, and the driving member can drive the first cutting knife to move to the first position or the second position with the first die.

[0006] According to one embodiment of the present application, the stamping die includes a second die body and an elastic component, the second die is arranged on the second die body; the third cutting knife is fixed to the second die body; the elastic component is fixed to the second die body, and the second cutting knife is connected to the elastic component; when the first die and the first cutting knife are in the first position and the mold is closed, the third cutting knife and the second cutting knife move toward the first die body along with the second die body until the mating end face is pressed and fitted against the second sub-mold surface, the elastic component is compressed and deformed, and the third cutting knife moves relative to the second cutting knife and the first cutting knife to cut the parts to be processed; when the first die and the first cutting knife are in the second position and the mold is closed, the second cutting knife and the third cutting knife move together, and the second cutting knife cuts the parts to be processed.

[0007] According to one embodiment of the present application, the elastic component includes an elastic member and an elastic member mounting plate; wherein, the opposite ends of the elastic member are respectively connected to the second mold body and the elastic member mounting plate; and the second cutting knife is fixedly connected to the elastic member mounting plate.

[0008] According to one embodiment of the present application, the elastic component further includes two limiting members arranged opposite to each other, the limiting members are arranged on the second mold body, and the elastic member mounting plate is movably connected to the limiting members.

[0009] According to one embodiment of the present application, each of the limiting members includes: a limiting column, which is connected to the second mold body, and a guide groove is formed on the inner side of one of the limiting columns toward the other limiting column, and the elastic member mounting plate can move back and forth along the guide groove; a limiting boss, which is arranged on the limiting column and is located on the side of the limiting column away from the second mold body, wherein the limiting bosses of each limiting member are arranged relatively to each other, and the limiting bosses can limit the elastic member mounting plate.

[0010] According to one embodiment of the present application, the elastic component also includes a guide column, which is fixedly connected to the second mold; a guide hole is provided on the elastic member mounting plate, which is mounted on the guide column, and the elastic member mounting plate can move along the guide column along with the second mold body.

[0011] According to one embodiment of the present application, the elastic member is a nitrogen spring.

[0012] According to one embodiment of the present application, the blade of the second cutting knife is arranged on the inner side facing the first mold; the blade of the first cutting knife is arranged on the outer side facing away from the first mold; the third cutting knife is arranged on the outer side of the second cutting knife facing away from the first mold, and the blade of the third cutting knife is arranged on the side facing the first cutting knife; and along the movement direction of the first mold body, the blade of the third cutting knife is aligned with the blade of the first cutting knife.

[0013] According to one embodiment of the present application, the stamping die further includes an adjusting member, which is disposed on the second die body and is located between the first cutting knife and the second cutting knife.

[0014] The beneficial effects of the present application are as follows: the stamping die of the present application includes a first die, a second die, a first cutting blade, a second cutting blade, and a third cutting blade. The first die is provided with a first model surface; the second die is provided with a second model surface that cooperates with the first model surface when the die is closed; the end surface of the first cutting blade is provided with an auxiliary model surface; the first die and the first cutting blade move relative to each other to switch between a first position and a second position; in the first position, the first model surface and the auxiliary model surface are connected to each other to form a continuous forming die surface; in the second position, the first model surface and the auxiliary model surface are staggered with each other. The second cutting blade is provided with a mating end surface that cooperates with the auxiliary model surface when the die is closed. When the first die and the first cutting blade are in the first position, the mating end surface is pressed against the auxiliary model surface during the die closing process, and the third cutting blade moves along the first cutting blade to cooperate with and cut the parts to be processed; when the first die and the first cutting blade are in the second position, there is a gap between the mating end surface and the auxiliary model surface during the die closing process, and the second cutting blade moves to cut the parts to be processed. Because the first die and the first cutting knife move relative to each other to switch between the first position and the second position, the molding die surface formed by the first model surface and the auxiliary model surface together is different; therefore, when the first die and the first cutting knife are in the first position and the second position respectively for mold closing processing, the parts to be processed are clamped between the second model surface and the molding die surface at different locations, resulting in different cutting locations of the parts to be processed, so that when the first die and the first cutting knife are in the first position and the second position respectively, the parts to be processed punched and cut out are also different; that is, when the first die and the first cutting knife are in the first position and the second position respectively, the same stamping die of the present application can punch and cut out parts with different contours. It can be seen from this that, therefore, the same stamping die of the present application can reduce the development cost of at least one pair of dies and effectively reduce the equipment cost for contour stamping. At the same time, since there is no need to switch dies, production efficiency can be greatly improved. In addition, the versatility and flexibility of the stamping die can be enhanced to better adapt to changes in market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0016] Figure 1 This is a schematic diagram of the exploded structure of an embodiment of the stamping die of the present application;

[0017] Figure 2 Schematic diagram of the cross-sectional structure of the first die and the first cutting knife of the stamping die of the present application in the first position;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the first die and the first cutting knife of the stamping die of the present application in the second position. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the accompanying drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0020] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0023] See also Figures 1 to 3 , Figure 1 This is a schematic diagram of the exploded structure of an embodiment of the stamping die of the present application; Figure 2 Schematic diagram of the cross-sectional structure of the first die and the first cutting knife of the stamping die of the present application in the first position; Figure 3 It is a schematic diagram of the cross-sectional structure of the first die and the first cutting knife of the stamping die of the present application in the second position.

[0024] One embodiment of the present application provides a stamping die 10. The stamping die 10 includes a first die 11, a second die 12, a first cutting knife 13, a second cutting knife 14 and a third cutting knife 15. Among them, the first die 11 is provided with a first model surface 111; the second die 12 is provided with a second model surface 121 that cooperates with the first model surface 111 when the die is closed; the end face of the first cutting knife 13 is provided with an auxiliary model surface 131, and the first die 11 and the first cutting knife 13 move relative to each other to switch between a first position and a second position. In the first position, the first model surface 111 and the auxiliary model surface 131 are connected to each other to form a continuous molding die surface. In the second position, the first model surface 111 and the auxiliary model surface 131 are staggered with each other. The second cutting knife 14 is provided with a mating end face 141 that cooperates with the auxiliary model surface 131 when the die is closed. The first mold 11 and the first cutting knife 13 are in the first position. When the mold is closed, the mating end surface 141 is pressed against the auxiliary model surface 131, and the third cutting knife 15 moves along the first cutting knife 13 to cooperate in cutting the parts to be processed; the first mold 11 and the first cutting knife 13 are in the second position. When the mold is closed, there is a gap between the mating end surface 141 and the auxiliary model surface 131, and the second cutting knife 14 moves to cut the parts to be processed.

[0025] As can be seen from the above structure, the part to be processed can be placed between the first die 11 and the second die 12, which can then stamp the part. The first, second, and third cutting blades 13, 14, 15 are used to cut the part. The auxiliary molding surface 131 of the first cutting blade 13 can mate with the mating end surface 141 of the second cutting blade 14, facilitating the cutting of the part by the third cutting blade 15.

[0026] Specifically, when the first die 11 and the first cutting blade 13 move relative to each other to switch between the first position and the second position, the first model surface 111 and the auxiliary model surface 131 together form different molding die surfaces. Therefore, when the first die 11 and the first cutting blade 13 are in the first position and the second position, respectively, the parts to be processed are clamped between the second model surface 121 and the molding die surface at different locations, resulting in different cutting locations of the parts to be processed. As a result, when the first die 11 and the first cutting blade 13 are in the first position and the second position, respectively, the parts to be processed that are punched and cut are also different. When the first mold 11 and the first cutting knife 13 are in the first position, during the mold closing process, the first model surface 111 and the auxiliary model surface 131 jointly form the molding mold surface, the second model surface 121 and the mating end surface 141 respectively abut against the first model surface 111 and the auxiliary model surface 131 to clamp the parts to be processed, and the third cutting knife 15 can move toward the first cutting knife 13 and cut the parts to be processed, thereby obtaining parts with a first contour shape. When the processing is completed, the first mold 11 and the second mold 12 move away from each other to realize mold opening until the first mold 11 and the second mold 12 move to the initial position. When the first mold 11 and the first cutting knife 13 are in the second position, during the mold closing process, due to the gap between the mating end face 141 and the auxiliary model surface 131, the first model surface 111 serves as the molding mold surface, and the second model surface 121 abuts against the first model surface 111 to clamp the part to be processed. At this time, the second cutting knife 14 and the third cutting knife 15 move toward the end away from the first mold 11, and the second cutting knife 14 cuts the part to be processed, thereby obtaining a part with a second contour shape. When the processing is completed, the first mold 11 and the second mold 12 move away from each other to realize mold opening until the first mold 11 and the second mold 12 move to the initial position.

[0027] Therefore, the same stamping die 10 of the present application can be used to stamp and cut parts with different contours. Therefore, the same stamping die 10 of the present application can reduce the development costs of at least one die pair, effectively lowering the equipment cost for contour stamping. Furthermore, since there is no need to switch dies, production efficiency can be greatly improved. Furthermore, the versatility and flexibility of the stamping die 10 can be enhanced to better adapt to changing market demands.

[0028] In one embodiment of the present application, the stamping die 10 includes a first die body 16 and a driving member 17, and the first die 11 is fixed to the first die body 16. The driving member 17 is provided on the first die body 16, and the first cutting blade 13 is connected to the driving member 17. The driving member 17 can drive the first cutting blade 13 to move to a first position or a second position relative to the first die 11. The provision of the first die body 16 not only facilitates the fixation and installation of the first die 11, but also makes room for the installation of other structural parts, such as the driving member 17, to facilitate the installation of the other structures, and also provides a certain support for the first die 11, the driving member 17 and other structures. The driving member 17 can provide power for the first cutting knife 13 and the first mold 11 to move to the first position or the second position, and the driving member 17 is arranged on the first mold body 16. Compared with additionally arranging the driving member 17 outside the stamping mold 10, the present application can also effectively reduce the volume of the stamping mold 10 and improve the compactness of the stamping mold 10, thereby realizing the miniaturization design of the stamping mold 10.

[0029] In some embodiments, a pad can be set when there is a gap between the driving member 17 and the first cutting knife 13. The setting of the pad can increase the force-bearing area between the driving member 17 and the first cutting knife 13, thereby effectively dispersing the pressure between the two and increasing the stability of the structures of the two.

[0030] In one embodiment of the present application, the stamping die 10 includes a second die body 18 and an elastic component 19, and the second die 12 is arranged on the second die body 18. The third cutting knife 15 is fixed to the second die body 18. The elastic component 19 is fixed to the second die body 18, and the second cutting knife 14 is connected to the elastic component 19. When the first contour cutting is required, the first die 11 and the first cutting knife 13 need to be adjusted to the first position, and then the mold closing process is performed. And when the mold closing process is performed, the third cutting knife 15 and the second cutting knife 14 move toward the first die body 16 along with the second die body 18 until the mating end face 141 is pressed against the auxiliary model surface 131, the second die body 18 continues to move toward the first die body 16, the elastic component 19 is compressed and deformed, and the third cutting knife 15 moves relative to the second cutting knife 14 and the first cutting knife 13 to cut the parts to be processed.

[0031] Specifically, when the first mold 11 and the first cutting knife 13 are in the first position for mold closing processing, the second mold body 18 moves toward the first mold body 16 under the action of the external driving structure. At this time, the movement of the second mold body 18 can drive the second cutting knife 14 and the third cutting knife 15 to move toward the side of the first mold body 16, and the driving member 17 drives the first cutting knife 13 to move toward the side of the second mold body 18 until the first cutting knife 13 and the second cutting knife 14 are abutted, and the mating end face 141 and the auxiliary model surface 131 are pressed together. At this time, due to the abutment of the first cutting blade 13 and the second cutting blade 14, the second mold body 18 continues to move toward the first mold body 16, so that the elastic component 19 will be compressed and deformed, and the direction of the elastic force generated by the compression of the elastic component 19 is toward the first mold body 16. At this time, the elastic force will act on the second cutting blade 14, so that the second cutting blade 14 and the first cutting blade 13 always remain abutted against each other, thereby playing a certain positioning role for the part to be processed, and the second mold body 18 continues to drive the third cutting blade 15 to move relative to the first cutting blade 13 and the second cutting blade 14 to cut the part to be processed, thereby obtaining the part to be processed with the first contour shape. When the processing is completed, the first mold body 16 and the second mold body 18 move away from each other to realize the mold opening, the first cutting blade 13 and the second cutting blade 14 no longer abut against each other, the elastic component 19 resumes its deformation, and the first mold body 16 and the second mold body 18 respectively drive the first mold 11 and the second mold 12 to move to their initial positions.

[0032] When the second type of contour cutting is required, the first mold 11 and the first cutting blade 13 are adjusted to the second position before the mold is closed. During the mold closing process, the second cutting blade 14 and the third cutting blade 15 move together, and the second cutting blade 14 cuts the part to be processed. Specifically, when the first mold 11 and the first cutting blade 13 are in the second position for mold closing, the second mold body 18 and the first mold body 16 move toward each other until a certain distance exists between the first cutting blade 13 and the second cutting blade 14. At this point, a gap exists between the mating end face 141 and the auxiliary mold surface 131. The second mold body 18 then drives the second cutting blade 14 and the third cutting blade 15 to move away from the first mold body 16, and the second cutting blade 14 cuts the part to be processed, thereby obtaining the part to be processed with the second contour shape. When the processing is completed, the first mold body 16 and the second mold body 18 move away from each other to complete the mold opening process. At this time, the first mold 11 and the second mold body 12 each move to their initial positions.

[0033] In the present application, the setting of the second mold body 18 can play a certain supporting role for the second mold 12, the elastic component 19 and the third cutting knife 15, and the second mold body 18 can also drive the second cutting knife 14 and the third cutting knife 15 to move toward the first mold body 16 or away from the first mold body 16. Moreover, in the present application, through the cooperation of the driving member 17 and the elastic component 19, parts with different contours can be cut out without replacing the stamping die 10, which not only reduces the development cost of the mold and reduces the mold development cost, but also eliminates the need to affect production efficiency due to mold replacement. In addition, the versatility and flexibility of the stamping die 10 can be increased to better adapt to changes in market demand.

[0034] In the embodiment of the present application, the elastic assembly 19 includes an elastic member 191 and an elastic member mounting plate 192. The opposite ends of the elastic member 191 are respectively connected to the second mold body 18 and the elastic member mounting plate 192. The second cutting blade 14 is fixedly connected to the elastic member mounting plate 192.

[0035] When the first mold 11 and the first cutting knife 13 are in the first position for mold closing, the second mold body 18 drives the elastic member mounting plate 192, the second cutting knife 14 and the third cutting knife 15 to move toward the side of the first mold body 16, and the driving member 17 drives the first cutting knife 13 to move toward the side of the second mold body 18. When the second cutting knife 14 and the first cutting knife 13 hit each other, the second mold body 18 continues to move toward the first mold body 16, and the elastic member 191 is compressed. The elastic force generated by the compression of the elastic member 191 acts on the elastic member mounting plate 192, and the elastic member mounting plate 192 is subjected to pressure toward the first mold body 16, and then the second cutting knife 14 is also subjected to pressure toward the first mold body 16. The second cutting knife 14 can always maintain a state of hitting each other with the first cutting knife 13, so as to play a certain positioning role in the workpiece to be processed, thereby facilitating the cutting of the workpiece by the third cutting knife 15. When the processing is completed, the first mold body 16 and the second mold body 18 move away from each other to open the mold. At this time, the first cutting knife 13 and the second cutting knife 14 no longer press against the top, the elastic member 191 restores its deformation, and the first mold 11 and the second mold 12 move to their initial positions driven by the first mold body 16 and the second mold body 18.

[0036] When the first mold 11 and the first cutting knife 13 are in the second position for mold closing, the first mold body 16 and the second mold body 18 move toward each other until there is a certain distance between the first cutting knife 13 and the second cutting knife 14. At this time, there is a gap between the mating end face 141 and the auxiliary model surface 131. Then, the second cutting knife 14 and the third cutting knife 15 are driven by the second mold body 18 to move toward the end away from the first mold body 16. The second cutting knife 14 can be used to cut the parts to be processed to obtain the parts to be processed with the second contour shape. When the processing is completed, the first mold body 16 and the second mold body 18 are opened, thereby driving the first mold 11 and the second mold 12 to move to the initial position. Therefore, in the present application, through the cooperation of the elastic member 191 and the driving member 17, parts with different contours can be punched and cut out by the same stamping mold 10, thereby reducing the design cost of the stamping mold 10.

[0037] Furthermore, since the elastic member 191 is mounted on the second mold body 18 via the elastic member mounting plate 192, the contact area between the elastic member 191 and the second mold body 18 is increased, thereby improving the stability of the elastic member 191 when mounted on the second mold body 18. Furthermore, the provision of the elastic member mounting plate 192 also facilitates the installation of the second cutting blade 14, thereby improving the installation stability and efficiency of the second cutting blade 14.

[0038] In the embodiment of the present application, the elastic assembly 19 further includes two opposing limiters 193 disposed on the second mold body 18, and the elastic member mounting plate 192 is movably connected to the limiters 193. The provision of the two limiters 193, on the one hand, can limit the movement direction of the elastic member mounting plate 192 to prevent deviation during movement, which may cause the elastic member mounting plate 192 to become stuck during movement. On the other hand, the limiters 193 can also limit the travel of the elastic member mounting plate 192 to prevent the elastic member mounting plate 192 from moving away from the second mold body 18 under the action of the second mold body 18 and the elastic member 191. Therefore, the provision of the limiters 193 can not only improve the success rate of the machining operation of the part to be machined, but also improve the safety during the machining operation of the part to be machined.

[0039] In the embodiment of the present application, each limiting member 193 includes a limiting post 1931 and a limiting boss 1932. The limiting post 1931 is connected to the second mold body 18, and a guide groove (not shown) is formed on the inner side of one limiting post 1931 toward the other limiting post 1931, along which the elastic member mounting plate 192 can reciprocate. The limiting boss 1932 is disposed on the limiting post 1931 and is located on the side of the limiting post 1931 facing away from the second mold body 18. The limiting bosses 1932 of each limiting member 193 are arranged relative to each other, and the limiting bosses 1932 can limit the elastic member mounting plate 192. The limiting post 1931 can limit the movement of the elastic member mounting plate 192 to a certain extent, thereby preventing the elastic member mounting plate 192 from deviating during movement and affecting processing efficiency. The guide groove structure formed on the inner side of the limiting post 1931 can not only effectively reduce the friction between the elastic member mounting plate 192 and the limiting post 1931, but also make the elastic member mounting plate 192 more labor-saving when moving back and forth along the guide groove. The provision of the limiting boss 1932 can effectively limit the elastic member mounting plate 192, thereby preventing the elastic member mounting plate 192 from moving and separating from the second mold body 18 under the action of the second mold body 18 and the elastic member 191, thereby greatly improving the success rate of the processing operation of the part to be processed and improving the safety during the operation.

[0040] In some embodiments, the elastic member mounting plate 192 is further provided with safety screws for safely limiting the elastic member mounting plate 192 , which will not be described in detail here.

[0041] In an embodiment of the present application, the elastic component 19 also includes a guide column 194, which is fixedly connected to the second mold 12. A guide hole 1921 is provided on the elastic member mounting plate 192, and the guide hole 1921 is mounted on the guide column 194, and the elastic member mounting plate 192 can move along the guide column 194 along with the second mold body 18. By providing the guide hole 1921 on the elastic member mounting plate 192, the installation of the guide column 194 can be facilitated. The provision of the guide column 194 can play a certain supporting role on the elastic member mounting plate 192 to ensure the stability of the elastic member mounting plate 192 during the reciprocating movement. At the same time, the guide column 194 can also guide the elastic member mounting plate 192 to move along a predetermined path to ensure the movement accuracy of the elastic member mounting plate 192. In addition, the use of the guide column 194 can also avoid the provision of additional support components, which can effectively simplify the overall structure of the stamping die 10 and reduce manufacturing costs.

[0042] In an embodiment of the present application, the elastic member 191 is a nitrogen spring. The nitrogen spring achieves its elasticity through the compression and expansion of nitrogen. Specifically, when the second cutting blade 14 and the first cutting blade 13 collide, the nitrogen spring, under the action of an external force, pushes the piston rod, thereby compressing the nitrogen within the container. When the first and second cutting blades 13 and 14 are offset, the external force applied to the nitrogen spring contacts, causing the high-pressure nitrogen to release its compression capacity and push the piston rod back to its initial position. The use of a nitrogen spring in this application effectively saves space within the stamping die 10 due to its small size. Furthermore, its high elastic force reduces the number of springs used compared to conventional springs, thereby saving costs. Furthermore, the nitrogen spring has a smooth elastic force curve and operates smoothly. Therefore, the elastic force of the elastic member 191 is more stable than that of conventional springs.

[0043] Of course, in some other embodiments, the elastic member 191 may also adopt an ordinary spring to reduce the cost of the elastic member 191, which is not limited here.

[0044] In an embodiment of the present application, the blade of the second cutter 14 is positioned on the inner side facing the first die 11. The blade of the first cutter 13 is positioned on the outer side facing away from the first die 11. The third cutter 15 is positioned on the outer side of the second cutter 14 facing away from the first die 11, with the blade of the third cutter 15 positioned on the side facing the first cutter 13. Furthermore, along the movement direction of the first die body 16, the blade of the third cutter 15 is aligned with the blade of the first cutter 13. By positioning the blade of the second cutter 14 on the inner side facing the first die 11 and the blade of the first cutter 13 on the outer side facing away from the first die 11, during the first contour cutting process, the first cutter 13 and the second cutter 14 abut against each other, and the blade of the second cutter 14 does not interact with the first cutter 13 to cut the part to be processed. However, during the second contour cutting process, the second cutter 14 can cut the part to be processed. The blade of the third cutting knife 15 is aligned with the blade of the first cutting knife 13. During the first contour cutting, the first cutting knife 13 and the third cutting knife 15 can cut simultaneously, thereby improving the cutting efficiency.

[0045] In the embodiment of the present application, the stamping die 10 further includes an adjustment member 20 disposed between the first cutting blade 13 and the second cutting blade 14. The provision of the adjustment member 20 prevents either the second cutting blade 14 or the third cutting blade 15 from shifting during movement, thereby affecting the cutting performance of the second and third cutting blades 14, 15. Therefore, the provision of the adjustment member 20 provides a certain degree of side-slip protection for the second and third cutting blades 14, 15, thereby improving the success rate of cutting by the second and third cutting blades 14, 15.

[0046] It should be noted that terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or vertical, but rather that they may be slightly tilted. Terms such as "parallel" and "perpendicular" do not imply that components are absolutely parallel or perpendicular to each other, but rather that they may form a certain angular deviation. For example, "horizontal" simply means that its direction is more horizontal than "vertical" and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted. Furthermore, terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," and "counterclockwise" indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships typically used when the products of this application are used. These terms are intended solely to facilitate the description of the embodiments of this application and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0047] It is understood that the meaning of "plurality" herein is at least two, such as two, three, etc., unless there is a special limitation. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units that are inherent to these processes, methods, products or devices. The term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the related objects before and after are in an "or" relationship.

[0048] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A stamping die, characterized in that: include: a first mold, wherein the first mold is provided with a first model surface; a second mold, the second mold being provided with a second mold surface that cooperates with the first mold surface when the mold is closed; a first cutting blade, wherein an auxiliary molding surface is provided on an end surface of the first cutting blade, and the first mold and the first cutting blade are relatively movable to switch between a first position and a second position, wherein in the first position, the first molding surface and the auxiliary molding surface are connected to each other to form a continuous molding surface, and in the second position, the first molding surface and the auxiliary molding surface are staggered with each other; a second cutting knife, wherein the second cutting knife is provided with a mating end surface mating with the auxiliary mold surface when the mold is closed; The third cutting knife; The first mold and the first cutting knife are in the first position. When the mold is closed, the mating end surface is pressed against the auxiliary mold surface, and the third cutting knife moves along the first cutting knife to cooperate with the cutting knife to cut the part to be processed. The first mold and the first cutting knife are in the second position. When the mold is closed, there is a gap between the matching end surface and the auxiliary mold surface. The second cutting knife moves to cut the parts to be processed.

2. The stamping die according to claim 1, characterized in that: The stamping die comprises: a first mold body, wherein the first mold is fixed to the first mold body; A driving member is provided on the first mold body, the first cutting knife is connected to the driving member, and the driving member can drive the first cutting knife to move to the first position or the second position with the first mold.

3. The stamping die according to claim 1, characterized in that The stamping die includes a second die body and an elastic component, and the second die is arranged on the second die body; The third cutting knife is fixed to the second mold body; The elastic component is fixed to the second mold body, and the second cutting knife is connected to the elastic component; When the first mold and the first cutting knife are in the first position and the mold is closed, the third cutting knife and the second cutting knife move toward the first mold body along with the second mold body until the mating end surface is pressed and fitted with the auxiliary mold surface. The second mold body continues to move toward the first mold body, the elastic component is compressed and deformed, and the third cutting knife moves relative to the second cutting knife and the first cutting knife to cut the part to be processed. When the first mold and the first cutting knife are in the second position and the mold is closed, the second cutting knife and the third cutting knife move together, and the second cutting knife cuts the part to be processed.

4. The stamping die according to claim 3, characterized in that: The elastic component includes an elastic member and an elastic member mounting plate; Wherein, opposite ends of the elastic member are respectively connected to the second mold body and the elastic member mounting plate; The second cutting knife is fixedly connected to the elastic member mounting plate.

5. The stamping die according to claim 4, characterized in that: The elastic component further includes two limiting members arranged opposite to each other, the limiting members are arranged on the second mold body, and the elastic member mounting plate is movably connected to the limiting members.

6. The stamping die according to claim 5, characterized in that: Each of the limiting members comprises: A limiting post, the limiting post being connected to the second mold body, and a guide groove being formed on the inner side of one of the limiting posts toward the other limiting post, and the elastic member mounting plate being capable of reciprocating movement along the guide groove; The limiting boss is arranged on the limiting column and is located on the side of the limiting column away from the second mold body, wherein the limiting bosses of each limiting member are relatively arranged, and the limiting bosses can limit the elastic member mounting plate.

7. The stamping die according to claim 4, characterized in that: The elastic component further includes a guide post, and the guide post is fixedly connected to the second mold; The elastic member mounting plate is provided with a guide hole, the guide hole is sleeved on the guide post, and the elastic member mounting plate can move along the guide post along with the second mold body.

8. The stamping die according to claim 4, characterized in that: The elastic member is a nitrogen spring.

9. The stamping die according to claim 3, characterized in that: The blade of the second cutting knife is arranged on the inner side facing the first mold; The blade of the first cutting knife is arranged on the outer side away from the first mold; The third cutting knife is arranged on the outer side of the second cutting knife facing away from the first mold, and the blade of the third cutting knife is arranged on the side facing the first cutting knife; And along the moving direction of the first mold body, the blade of the third cutting knife is aligned with the blade of the first cutting knife.

10. The stamping die according to claim 9, characterized in that: The stamping die further includes an adjusting member, which is disposed on the second die body and located between the first cutting blade and the second cutting blade.

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