Die for sheet metal stamping part production

Abstract

The embodiment of the utility model provides a die for producing sheet metal stamping parts, and relates to the technical field of sheet metal stamping. The die for producing the sheet metal stamping part comprises a stamping assembly and a module assembly. During use, appropriate upper and lower dies are respectively placed in the connecting plate and the metal plate table, the auxiliary positioning pieces in the connecting plate and the metal plate table slide towards the inner side, and after the upper and lower dies completely enter the connecting plate and the metal plate table, the end parts of the auxiliary positioning pieces are propped against the side surfaces of the upper and lower dies; at the moment, fastening rods are sequentially inserted into the connecting plate, the upper die, the metal plate table and the lower die, then bolts are used for fastening the two ends of each fastening rod, and therefore the upper die and the lower die are fastened to the connecting plate and the metal plate table, a metal plate material is placed on the lower die, and the metal plate material is clamped to the surface of the lower die through auxiliary fastening pieces; and the stamping machine is started for stamping to finish production of the sheet metal parts.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal stamping, in particular to a die for producing sheet metal stamping parts. Background Art

[0002] A stamping die is a special process equipment used to process materials into parts during cold stamping. It is called a cold stamping die. Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to cause it to separate or plastically deform, thereby obtaining the desired parts. When a factory performs stamping operations on automotive sheet metal parts, it needs to use a stamping die to directly stamp the sheet metal parts.

[0003] In the burr-free stamping die for sheet metal parts on the surface of a vehicle with the prior art publication number CN216729158U, it includes a bottom plate and a top plate, the upper surface of the bottom plate is fixedly connected to a bottom block, a plurality of vertical rods are fixedly connected between the bottom plate and the top plate, one side of the vertical rod is movably connected to a lower mounting plate, the upper surface of the lower mounting plate is fixedly connected to a lower die, and two first springs are sleeved between each of the vertical rods, the upper surface of the top plate is fixedly connected to a hydraulic cylinder, one end of the hydraulic cylinder is movably connected to an upper mounting plate, the lower surface of the upper mounting plate is fixedly connected to an upper die, the upper die corresponds to the lower die, and the upper mounting plate is movably connected to the vertical rods, two limiting rings are sleeved on one side of the circumference of each of the vertical rods, and the lower mounting plate is located between the limiting rings. By setting the spring between the upper mounting plate and the lower mounting plate, the upper mold can be separated from the stamped sheet metal in time when the sheet metal parts for automobiles are stamped, so as to avoid friction between the upper mold and the sheet metal parts, and to avoid burrs, thereby ensuring the production quality of sheet metal parts for automobiles. At the same time, the design of the upper mounting plate and the lower mounting plate sliding on the vertical rod facilitates the alignment between the upper mold and the lower mold, thereby ensuring the stamping accuracy of sheet metal parts for automobiles. In the process of realizing the technical solution, the inventor found that there are at least the following problems in the prior art:

[0004] In the prior art, the device can only quickly perform sheet metal processing on sheet metal parts with the same mold requirements, but cannot perform sheet metal processing on sheet metal materials with different shape requirements. It is difficult to replace the production mold, so a large number of different devices are required to install different molds for production, which leads to high costs. Utility Model Content

[0005] The purpose of the utility model is to provide a die for producing sheet metal stamping parts, which can quickly replace different production dies in a device to meet different sheet metal production needs and greatly reduce production costs.

[0006] An embodiment of the utility model provides a die for producing sheet metal stamping parts, comprising a stamping component and a module component.

[0007] The punching assembly includes a support frame and a punching machine, wherein the punching machine is fixedly connected to the top of the support frame, vertical rods are evenly distributed in the support frame, and a connecting plate is fixedly connected to the output end of the punching machine, and the connecting plate is slidably connected to the vertical rods;

[0008] A module assembly, the module assembly includes an upper mold, a lower mold, a fastening rod, a sheet metal table, an auxiliary positioning piece and an auxiliary fastener, the fastening rod passes through the connecting plate and the upper mold in sequence, the two ends of the fastening rod are fixed and tightened on the connecting plate by bolts, the four sides of the sheet metal table are sleeved on the vertical rod, the other fastening rod passes through the sheet metal table and the lower mold in sequence, the two ends of the fastening rod are fixed and tightened on the sheet metal table by bolts, the auxiliary positioning piece is slidably connected to the connecting plate and the sheet metal table, one end of the auxiliary positioning piece abuts against the side surfaces of the upper mold and the lower mold, and the auxiliary fastener is fixedly connected to both sides of the lower mold.

[0009] In a specific embodiment, the bottom ends of the upper mold and the lower mold are fixedly connected with positioning columns, and the positioning columns are respectively inserted into the connecting plate and the sheet metal table.

[0010] In a specific embodiment, the connecting plate and the sheet metal platform are respectively provided with an upper mold groove and a lower mold groove, one end of the upper mold and the lower mold are located in the upper mold groove and the lower mold groove, the auxiliary positioning parts are evenly distributed on the groove walls of the upper mold groove and the lower mold groove, and one end of the auxiliary positioning parts abuts against the side walls of the upper mold groove and the lower mold groove.

[0011] In a specific embodiment, the auxiliary positioning member includes a fixed plate, a second spring and a positioning plug. The groove walls of the upper mold groove and the lower mold groove are evenly provided with mounting grooves. The fixed plate is fixedly connected to the mounting groove. One end of the second spring is fixedly connected to the fixed plate. The other end of the second spring is fixedly connected to the positioning plug. The positioning plug is slidably connected to the mounting groove. The end of the positioning plug abuts against the side walls of the upper mold and the lower mold.

[0012] In a specific embodiment, the auxiliary fastener includes a mounting block, a fastening plate and a curved spring, the mounting block is fixedly connected to both sides of the lower mold, the fastening plate is rotatably connected to the mounting block through a rotating shaft, one end of the curved spring is fixedly connected to the sheet metal table, and the other end of the curved spring is fixedly connected to the fastening plate, and the fastening plate is tightly attached to the side of the lower mold.

[0013] In a specific implementation, a first spring is sleeved on the circumferential side of the vertical rod, one end of the first spring is fixedly connected to the sheet metal platform, and the other end of the first spring is fixedly connected to the connecting plate.

[0014] In a specific implementation, a horizontal plate is fixedly connected to the support frame body, and a sliding groove is provided on the horizontal plate. The sheet metal platform is slidably connected to the vertical rod on all sides, and the sheet metal platform can pass through the sliding groove. A third spring is fixedly connected to the sheet metal platform and the bottom end of the support frame body, and the third spring is sleeved on the vertical rod.

[0015] In a specific implementation manner, a support platform is provided below the sheet metal platform, and the support platform is fixedly connected to the bottom end of the support frame.

[0016] In a specific embodiment, a buffer pad is laid on the upper surface of the support platform.

[0017] In a specific implementation, a first mounting ring is fixedly connected to the bottom end of the vertical rod close to the support frame, one end of the third spring is fixedly connected to the first mounting ring, and the other end of the third spring is fixedly connected to the sheet metal platform.

[0018] The beneficial effects of a mold for producing sheet metal stamping parts provided by an embodiment of the utility model are as follows: when in use, suitable upper and lower molds are respectively placed in the connecting plate and the sheet metal table, at which time the auxiliary positioning pieces in the connecting plate and the sheet metal table slide inward, and when the upper mold and the lower mold are completely entered into the connecting plate and the sheet metal table, the ends of the auxiliary positioning pieces abut against the sides of the upper mold and the lower mold, and at this time, the connecting plate and the upper mold, the sheet metal table and the lower mold are respectively inserted into the connecting plate and the upper mold, the sheet metal table and the lower mold in sequence through the fastening rod, and then the two ends of the fastening rod are fastened with bolts, so that the upper mold and the lower mold are fastened to the connecting plate and the sheet metal table, the sheet metal material is placed on the lower mold, and the auxiliary fasteners clamp the sheet metal material to the surface of the lower mold The surface, start the punching machine to punch to complete the sheet metal production. When the mold needs to be replaced, you only need to loosen the fastening rod through the bolt, pull out the fastening rod, and then you can remove the mold. The mold replacement can be completed through the above steps, which solves the problem that the mold is difficult to quickly replace and the production cost increases in the prior art. The auxiliary positioning parts can stabilize the upper and lower molds, reduce the shaking of the mold during production, and improve the production quality. The auxiliary fasteners can clamp the sheet metal material to prevent the sheet metal material from shifting during production, thereby ensuring the accuracy of stamping. The utility model can quickly replace the mold while improving the production quality of sheet metal parts, thereby greatly reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic structural diagram of a mold for producing sheet metal stamping parts according to an embodiment of the utility model.

[0021] Figure 2 It is a schematic diagram of the structure of the stamping assembly of an embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of the structure of the module assembly of the embodiment of the utility model.

[0023] Figure 4 It is a schematic structural diagram of a positioning column according to an embodiment of the utility model.

[0024] Figure 5 It is a schematic structural diagram of the mold groove in an embodiment of the utility model.

[0025] Figure 6 It is a structural schematic diagram of the positioning assisting member according to an embodiment of the utility model.

[0026] Figure 7 It is a schematic structural diagram of the auxiliary fastener according to an embodiment of the utility model.

[0027] Icons: 100-stamping assembly; 110-support frame; 120-stamping machine; 130-vertical rod; 131-first mounting ring; 140-connecting plate; 141-upper die groove; 150-first spring; 160-cross plate; 161-sliding groove; 170-third spring; 200-module assembly; 210-upper die; 220-lower die; 230-fastening rod; 240-sheet metal table; 241-lower die groove; 250-assisting positioning piece; 251-fixing plate; 252-second spring; 253-positioning plug block; 254-mounting groove; 260-auxiliary fastener; 261-mounting block; 262-fastening plate; 263-curved spring; 270-positioning column; 280-support table; 290-buffer pad; DETAILED DESCRIPTION

[0028] In the prior art, the device can only quickly sheet metal parts with the same mold requirements, but cannot sheet metal materials with different shapes. It is difficult to replace the production mold, so a large number of different devices are required to install different molds for production, which leads to high costs. Therefore, the inventor has provided a mold for sheet metal stamping parts production, which can quickly replace different production molds in the device to meet different sheet metal production needs and greatly reduce production costs.

[0029] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0030] Please refer to Figure 1 An embodiment of the utility model provides a die for producing sheet metal stamping parts, including a stamping component 100 and a module component 200.

[0031] Please refer to Figure 2The stamping assembly 100 includes a support frame 110 and a punching machine 120. The punching machine 120 is fixedly connected to the top of the support frame 110. Vertical rods 130 are evenly distributed in the support frame 110. A connecting plate 140 is fixedly connected to the output end of the punching machine 120. The connecting plate 140 is slidably connected to the vertical rod 130. A first spring 150 is sleeved on the surrounding side of the vertical rod 130. One end of the first spring 150 is fixedly connected to the sheet metal table 240, and the other end of the first spring 150 is fixedly connected to the connecting plate 140. The first spring 150 is a compression spring. When the punching machine 120 is punching, the first spring 150 is compressed, generating an upward thrust, playing a certain buffering role, and preventing the punching machine 120 from over-punching and causing damage to the sheet metal material. A horizontal plate 160 is fixedly connected inside the support frame 110, and a sliding groove 161 is provided on the horizontal plate 160. The four sides of the sheet metal platform 240 are slidably connected to the vertical rod 130, and the sheet metal platform 240 can pass through the sliding groove 161. The sheet metal platform 240 and the bottom end of the support frame 110 are fixedly connected with a third spring 170, and the third spring 170 is sleeved on the vertical rod 130. A support platform 280 is arranged below the sheet metal platform 240, and the support platform 280 is fixedly connected to the bottom end of the support frame 110. When the punching machine 120 punches, the sheet metal platform 240 slides downward, and the third spring 170 is compressed. When the sheet metal platform 240 falls to the support platform 280, the sheet metal platform 240 stops sliding, the sheet metal material is punched, and the production is completed. After the punching is completed, the third spring 170 releases the elastic force, and the sheet metal platform 240 automatically returns to its original position. A buffer pad 290 is laid on the upper surface of the support platform 280. The buffer pad 290 is used to protect the sheet metal platform 240 from the impact force during the stamping process. The first mounting ring 131 is fixedly connected to the bottom end of the vertical rod 130 near the support frame 110, one end of the third spring 170 is fixedly connected to the first mounting ring 131, and the other end of the third spring 170 is fixedly connected to the sheet metal platform 240. The first mounting ring 131 facilitates the replacement and installation of the third spring 170.

[0032] Please refer to Figure 3 and Figure 4, module assembly 200, the module assembly 200 includes an upper mold 210, a lower mold 220, a fastening rod 230, a sheet metal table 240, an auxiliary positioning member 250 and an auxiliary fastener 260, the fastening rod 230 passes through the connecting plate 140 and the upper mold 210 in sequence, and both ends of the fastening rod 230 are fixed and tightened on the connecting plate 140 by bolts, the four sides of the sheet metal table 240 are sleeved on the vertical rod 130, another fastening rod 230 passes through the sheet metal table 240 and the lower mold 220 in sequence, and both ends of the fastening rod 230 are fixed and tightened on the sheet metal table 240 by bolts, the auxiliary positioning member 250 is slidably connected to the connecting plate 140 and the sheet metal table 240, one end of the auxiliary positioning member 250 abuts against the sides of the upper mold 210 and the lower mold 220, and the auxiliary fastener 260 is fixedly connected to both sides of the lower mold 220. When in use, place the appropriate upper and lower molds into the connecting plate 140 and the sheet metal table 240 respectively. At this time, the auxiliary positioning parts 250 in the connecting plate 140 and the sheet metal table 240 slide inward. When the upper mold 210 and the lower mold 220 completely enter the connecting plate 140 and the sheet metal table 240, the ends of the auxiliary positioning parts 250 abut against the sides of the upper mold 210 and the lower mold 220. At this time, the fastening rod 230 is inserted into the connecting plate 140 and the upper mold 210, the sheet metal table 240 and the lower mold 220 in turn, and then the two ends of the fastening rod 230 are fastened with bolts, so that the upper mold 210 and the lower mold 220 are fastened to the connecting plate 140 and the sheet metal table 240, and the sheet metal material is placed on the lower mold 220. The auxiliary fastener 260 fixes the sheet metal The material is clamped on the surface of the lower die 220, and the punching machine 120 is started for punching to complete the production of sheet metal parts. When the die needs to be replaced, it is only necessary to loosen the fastening rod 230 by the bolt, and the fastening rod 230 is pulled out to remove the die. The die replacement can be completed by the above steps, which solves the problem that the die is difficult to replace quickly and the production cost increases in the prior art. The upper die 210 and the lower die 220 can be stabilized by the auxiliary positioning member 250, and the shaking of the die during production can be reduced, and the production quality can be improved. The sheet metal material can be clamped by the auxiliary fastener 260 to prevent the sheet metal material from being displaced during production, and the accuracy of punching is guaranteed. The utility model can quickly replace the die while improving the production quality of the sheet metal parts, greatly reducing the production cost. The bottom ends of the upper die 210 and the lower die 220 are fixedly connected with positioning columns 270, and the positioning columns 270 are respectively inserted into the connecting plate 140 and the sheet metal table 240. The positioning column 270 is used to assist in positioning the upper mold 210 and the lower mold 220, while improving the connection tightness between the upper mold 210, the lower mold 220 and the connecting plate 140, the sheet metal table 240, so as to facilitate the rapid replacement of the upper mold 210 and the lower mold 220.

[0033] Please refer to Figure 3 and Figure 5The connecting plate 140 and the sheet metal table 240 are respectively provided with an upper mold groove 141 and a lower mold groove 241, one end of the upper mold 210 and the lower mold 220 are located in the upper mold groove 141 and the lower mold groove 241, and the assisting positioning members 250 are evenly distributed on the groove walls of the upper mold groove 141 and the lower mold groove 241, and one end of the assisting positioning member 250 abuts against the side walls of the upper mold groove 141 and the lower mold groove 241. During the production process, one end of the assisting positioning member 250 always abuts against the side walls of the upper mold 210 and the lower mold 220, which helps to improve the stability of the upper mold 210 and the lower mold 220 in the upper mold groove 141 and the lower mold groove 241, and reduce the shaking of the upper mold 210 and the lower mold 220.

[0034] Please refer to Figure 6 The auxiliary positioning member 250 includes a fixed plate 251, a second spring 252 and a positioning plug 253. The groove walls of the upper mold groove 141 and the lower mold groove 241 are evenly provided with mounting grooves 254. The fixed plate 251 is fixedly connected in the mounting groove 254. One end of the second spring 252 is fixedly connected to the fixed plate 251. The other end of the second spring 252 is fixedly connected to the positioning plug 253. The positioning plug 253 is slidably connected to the mounting groove 254. The end of the positioning plug 253 abuts against the side walls of the upper mold 210 and the lower mold 220. When the upper mold 210 and the lower mold 220 enter the upper mold groove 141 and the lower mold groove 241, the positioning block 253 slides into the installation groove 254, and the second spring 252 is compressed to generate elastic force. According to the interaction of forces, the second spring 252 gives the positioning block 253 an outward force, so that the positioning block 253 is clamped on the side walls of the upper mold 210 and the lower mold 220, thereby improving the stability of the upper mold 210 and the lower mold 220 in the groove.

[0035] Please refer to Figure 7 The auxiliary fastener 260 includes a mounting block 261, a fastening plate 262 and a curved spring 263. The mounting block 261 is fixedly connected to both sides of the lower mold 220. The fastening plate 262 is rotatably connected to the mounting block 261 through a rotating shaft. One end of the curved spring 263 is fixedly connected to the sheet metal table 240, and the other end of the curved spring 263 is fixedly connected to the fastening plate 262. The fastening plate 262 is closely attached to the upper side of the lower mold 220. The sheet metal material is placed on the surface of the lower mold 220, and the fastening plate 262 is closely attached to the side of the sheet metal material. The curved spring 263 generates elastic force. According to the interaction of forces, the fastening plate 262 obtains a force to rotate toward the lower mold 220, so that the sheet metal material is clamped.

[0036] In summary, the working principle of a mold for producing sheet metal stamping parts in an embodiment of the utility model is as follows: when in use, the appropriate upper and lower molds are respectively placed in the upper mold groove 141 and the lower mold groove 241, at this time, the positioning plug 253 slides into the installation groove 254, and the second spring 252 is compressed to generate elastic force. According to the interaction of forces, the second spring 252 gives an outward force to the positioning plug 253, so that the positioning plug 253 is clamped on the side walls of the upper mold 210 and the lower mold 220. At this time, the fastening rod 230 is respectively inserted into the connecting plate 140 and the upper mold 210, the sheet metal table 240 and the lower mold 220 in turn, and then the two ends of the fastening rod 230 are fastened with bolts, so that the upper mold 210 and the lower mold 220 are fastened to the connecting plate 140 and the sheet metal table 240, the sheet metal material is placed on the lower mold 220, and the fastening plate 262 is moved to rotate the fastening plate 262 downward The curved spring 263 generates elastic force. According to the interaction of forces, the fastening plate 262 obtains a force to rotate in the direction of the lower mold 220, so that the sheet metal material is clamped. The punching machine 120 is started for punching to complete the production of sheet metal parts. When the mold needs to be replaced, it is only necessary to loosen the fastening rod 230 by the bolt, and the fastening rod 230 can be pulled out to remove the mold. The mold replacement can be completed through the above steps, which solves the problem that the mold is difficult to replace quickly and the production cost increases in the prior art. The positioning plug 253 can stabilize the upper mold 210 and the lower mold 220, reduce the shaking of the mold during production, and improve the production quality. The fastening plate 262 can clamp the sheet metal material to prevent the sheet metal material from being displaced during production, thereby ensuring the accuracy of stamping. The utility model can quickly replace the mold while improving the production quality of sheet metal parts, greatly reducing the production cost.

[0037] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0038] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0039] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A die for producing sheet metal stamping parts, characterized in that: include A stamping assembly (100), the stamping assembly (100) comprising a support frame (110) and a stamping machine (120), the stamping machine (120) being fixedly connected to the top end of the support frame (110), vertical rods (130) being evenly distributed inside the support frame (110), the output end of the stamping machine (120) being fixedly connected to a connecting plate (140), and the connecting plate (140) being slidably connected to the vertical rods (130); A module assembly (200), the module assembly (200) comprising an upper mold (210), a lower mold (220), a fastening rod (230), a sheet metal platform (240), an auxiliary positioning member (250) and an auxiliary fastener (260), the fastening rod (230) sequentially passes through the connecting plate (140) and the upper mold (210), the two ends of the fastening rod (230) are fixed and screwed on the connecting plate (140) by bolts, the four sides of the sheet metal platform (240) are sleeved on the vertical rod (130), and the other The fastening rod (230) passes through the sheet metal platform (240) and the lower mold (220) in sequence, and both ends of the fastening rod (230) are fixed and tightened on the sheet metal platform (240) by bolts. The auxiliary positioning member (250) is slidably connected to the connecting plate (140) and the sheet metal platform (240), and one end of the auxiliary positioning member (250) abuts against the side surfaces of the upper mold (210) and the lower mold (220), and the auxiliary fastener (260) is fixedly connected to both sides of the lower mold (220).

2. A die for producing sheet metal stamping parts according to claim 1, characterized in that: The bottom ends of the upper mold (210) and the lower mold (220) are fixedly connected with positioning columns (270), and the positioning columns (270) are respectively inserted into the connecting plate (140) and the sheet metal platform (240).

3. A die for producing sheet metal stamping parts according to claim 1, characterized in that: The connecting plate (140) and the sheet metal platform (240) are respectively provided with an upper mold groove (141) and a lower mold groove (241); one end of the upper mold (210) and the lower mold (220) are located in the upper mold groove (141) and the lower mold groove (241); the auxiliary positioning member (250) is evenly distributed on the groove walls of the upper mold groove (141) and the lower mold groove (241); and one end of the auxiliary positioning member (250) abuts against the side walls of the upper mold groove (141) and the lower mold groove (241).

4. A die for producing sheet metal stamping parts according to claim 3, characterized in that: The auxiliary positioning member (250) comprises a fixing plate (251), a second spring (252) and a positioning plug (253); mounting grooves (254) are evenly provided on the groove walls of the upper mold groove (141) and the lower mold groove (241); the fixing plate (251) is fixedly connected to the mounting groove (254); one end of the second spring (252) is fixedly connected to the fixing plate (251); the other end of the second spring (252) is fixedly connected to the positioning plug (253); the positioning plug (253) is slidably connected to the mounting groove (254); and the end of the positioning plug (253) abuts against the side walls of the upper mold (210) and the lower mold (220).

5. A die for producing sheet metal stamping parts according to claim 1, characterized in that: The auxiliary fastener (260) includes a mounting block (261), a fastening plate (262) and a curved spring (263); the mounting block (261) is fixedly connected to both sides of the lower mold (220); the fastening plate (262) is rotatably connected to the mounting block (261) via a rotating shaft; one end of the curved spring (263) is fixedly connected to the sheet metal table (240); the other end of the curved spring (263) is fixedly connected to the fastening plate (262); and the fastening plate (262) is tightly attached to the upper side of the lower mold (220).

6. A die for producing sheet metal stamping parts according to claim 1, characterized in that: A first spring (150) is sleeved on the circumferential side of the vertical rod (130), one end of the first spring (150) is fixedly connected to the sheet metal platform (240), and the other end of the first spring (150) is fixedly connected to the connecting plate (140).

7. A die for producing sheet metal stamping parts according to claim 1, characterized in that: A transverse plate (160) is fixedly connected inside the support frame (110), and a sliding groove (161) is provided on the transverse plate (160). The sheet metal platform (240) is slidably connected to the vertical rod (130) on all sides, and the sheet metal platform (240) can pass through the sliding groove (161). A third spring (170) is fixedly connected between the sheet metal platform (240) and the bottom end of the support frame (110), and the third spring (170) is sleeved on the vertical rod (130).

8. A die for producing sheet metal stamping parts according to claim 7, characterized in that: A support platform (280) is provided below the sheet metal platform (240), and the support platform (280) is fixedly connected to the bottom end of the support frame (110).

9. A die for producing sheet metal stamping parts according to claim 8, characterized in that: A buffer pad (290) is laid on the upper surface of the support platform (280).

10. A die for producing sheet metal stamping parts according to claim 7, characterized in that: A first mounting ring (131) is fixedly connected to the bottom end of the vertical rod (130) close to the support frame (110), one end of the third spring (170) is fixedly connected to the first mounting ring (131), and the other end of the third spring (170) is fixedly connected to the sheet metal platform (240).

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