Combined multifunctional stamping die

Abstract

The utility model discloses a combined multifunctional punch die, including work head, be equipped with base plate spare on the work head, the base plate spare is equipped with middle die plate and upper die plate in proper order to the cover, the utility model discloses combined multifunctional punch die through the accurate alignment of base plate positioning post and positioning groove, has guaranteed the position consistency of base plate spare in the multiple operation, its unique layered design combines the setting of first forming part and second forming part, allows completing multiple complex stamping process in a stamping station, and the structure that locking piece penetrates locking groove has realized the stable connection of each die plate and overall collaborative work, thereby has remarkably shortened production line length, has reduced the site occupancy, has reduced production cost, and has fundamentally eliminated the risk of multi -process cooperation deviation, effectively has promoted the production quality, precision and efficiency of key high -strength sheet metal part.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a combined multi-functional stamping die. Background Technology

[0002] To meet the demands of both lightweighting and high strength, the sheet metal parts of new energy vehicles are generally manufactured using advanced one-piece stamping forming technology for key structural components (such as the body frame, key areas of the chassis, and door anti-collision beams). This process replaces the traditional welding and splicing method. The one-piece structure fundamentally eliminates the potential weak link of weld seams, significantly improving the overall rigidity and torsional resistance of the sheet metal parts. This ensures that energy can be more effectively dispersed and absorbed under collision impact, providing crucial rigid protection for the battery pack and passenger compartment. It is the core foundation for new energy vehicles to achieve excellent passive safety performance.

[0003] In the existing technology, in the production process of automotive sheet metal parts, a single high-strength steel sheet is generally shaped into a single part with a complex shape and complete structure through single or continuous high-precision stamping. However, continuous stamping processes can make the production line too long, requiring more space and increasing production costs. At the same time, continuous stamping processes can lead to mismatches between different processes, affecting the production quality and efficiency of sheet metal parts. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A combined multi-functional stamping die includes a worktable, on which a base plate is mounted, and a middle template and an upper template are sequentially mounted on the base plate.

[0007] The workbench is fixed with a positioning component for limiting the position of the substrate. The positioning component includes a plurality of substrate positioning posts mounted on the workbench, and the substrate is provided with a substrate positioning groove that aligns and cooperates with the substrate positioning posts.

[0008] The upper end surface of the substrate is provided with a first molding portion and a second molding portion from front to back;

[0009] The middle template is placed on the second forming part;

[0010] The upper template is applied to the first forming part and the middle template;

[0011] The end face of the upper template is provided with a locking groove that extends downward through the middle template and the base plate. A locking component is screwed onto the worktable. The locking component extends upward from the locking groove and locks with the middle template. An auxiliary positioning component is also provided on the worktable surrounding the upper template.

[0012] The middle die plate has a middle die stamping groove for stamping products, the base plate has a base plate stamping groove that aligns with the middle die stamping groove, and the upper die plate has an upper die stamping groove that aligns with the middle die stamping groove.

[0013] As a further embodiment of this utility model: the substrate positioning groove includes a front substrate positioning groove and a rear substrate positioning groove symmetrically opened at the front and rear ends of the substrate, respectively, and a left positioning groove and a right positioning groove symmetrically opened on the left and right sides of the substrate, respectively. The left positioning groove and the right positioning groove include a long positioning groove and a short positioning groove, respectively.

[0014] As a further embodiment of this utility model: the substrate positioning post is fixed on the worktable, and a substrate fastening bolt is screwed onto the side wall of the substrate positioning post. The substrate fastening bolt passes through the substrate positioning post and is screwed into the substrate component.

[0015] As a further embodiment of this utility model: the upper end face of the substrate is provided with a middle mold mounting groove, and the lower end face of the middle mold plate is formed with a middle mold positioning block that aligns and cooperates with the middle mold mounting groove.

[0016] As a further embodiment of this utility model: the upper template includes an upper mold front plate and an upper mold rear plate. The upper mold front plate is aligned and fitted with the first forming part, and the upper mold rear plate is aligned and fitted with the middle template. The front end of the upper mold rear plate is provided with left and right symmetrical snap-fit ​​grooves, and the rear end of the upper mold front plate is fixedly provided with a snap-fit ​​block that snaps and fits in the snap-fit ​​groove.

[0017] As a further embodiment of this utility model: the auxiliary positioning component includes a positioning base fixed on the workbench, and an L-shaped auxiliary positioning rod is rotatably provided on the positioning base. The auxiliary positioning rod is locked to the upper end face of the upper template component.

[0018] As a further embodiment of this utility model: a Y-shaped groove is provided on the middle template to align and cooperate with the locking member, and the locking member is arranged in a Y-shape within the Y-shaped groove.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This utility model of a combined multi-functional stamping die ensures the consistency of the substrate position during multiple operations through the precise alignment of the substrate positioning pins and positioning grooves. Its unique layered design, combined with the setting of the first forming part and the second forming part, allows multiple complex stamping processes to be completed in one stamping station. The structure of the locking part passing through the locking groove realizes the stable connection of each template and the overall collaborative work, thereby significantly shortening the production line length, reducing space occupation, lowering production costs, and fundamentally eliminating the risk of misalignment between multiple processes, effectively improving the production quality, precision and efficiency of key high-strength sheet metal parts. Attached Figure Description

[0021] Figure 1 This is an example drawing of a sheet metal part in the prior art;

[0022] Figure 2 This is a three-dimensional structural view of the present invention;

[0023] Figure 3 This is a three-dimensional view of the structure after removing the upper template 103 in this utility model;

[0024] Figure 4 This is a three-dimensional view of the structure of this utility model after removing the upper template 103 and the middle template 102;

[0025] Figure 5 This is an exploded view of the structure of this utility model;

[0026] Figure 6 This is a three-dimensional structural view of the lower end face of the template 102 in this utility model;

[0027] Figure 7 This is a three-dimensional structural view of the upper surface of the template 102 in this utility model;

[0028] Figure 8 This is a schematic diagram of the structure of a stamping die head in one embodiment;

[0029] The reference numerals and names in the figure are as follows:

[0030] Workbench-100, Substrate component-101, Middle template-102, Upper template-103, Positioning assembly-104, Substrate positioning post-105, Substrate positioning groove-106, First forming part-107, Second forming part-108, Locking groove-109, Locking component-110, Auxiliary positioning assembly-111, Middle die stamping groove-112, Substrate stamping groove-113, Upper die stamping groove-114, Front substrate positioning groove-115, Rear substrate positioning groove-116 Left positioning slot - 117, right positioning slot - 118, long positioning slot - 119, short positioning slot - 120, base plate fastening bolt - 121, middle mold mounting slot - 122, middle mold positioning block - 123, upper mold front plate - 124, upper mold rear plate - 125, snap-fit ​​slot - 127, snap-fit ​​block - 128, positioning base - 129, auxiliary positioning rod - 130, Y-shaped groove - 131, rear stamping head - 135, middle stamping head - 136, front stamping head - 137. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-8 A combined multi-functional stamping die includes a worktable 100, on which a base plate 101 is mounted, and a middle template 102 and an upper template 103 are sequentially covered upward on the base plate 101.

[0033] The worktable 100 is fixed with a positioning component 104 for limiting the position of the substrate 101. The positioning component 104 includes a plurality of substrate positioning posts 105 mounted on the worktable 100. The substrate 101 is provided with a substrate positioning groove 106 that aligns and cooperates with the substrate positioning posts 105.

[0034] The upper end surface of the substrate 101 is provided with a first molding portion 107 and a second molding portion 108 from front to back.

[0035] The middle template 102 is covered on the second forming part 108;

[0036] The upper template 103 covers the first forming part 107 and the middle template 102;

[0037] The end face of the upper template 103 is provided with a locking groove 109 that extends downward through the middle template 102 and the base plate 101. A locking member 110 is screwed onto the worktable 100. The locking member 110 extends upward from the locking groove 109 and locks with the middle template 102. An auxiliary positioning component 111 is also provided on the worktable 100 surrounding the upper template 103.

[0038] The middle template 102 has a middle die stamping groove 112 for stamping products, the base plate 101 has a base plate stamping groove 113 that aligns with the middle die stamping groove 112, and the upper template 103 has an upper die stamping groove 114 that aligns with the middle die stamping groove 112.

[0039] The positioning assembly 104, which consists of multiple base plate positioning posts 105 fixed on the worktable 100 and corresponding base plate positioning grooves 106 on the base plate component 101, ensures that the base plate component 101 can obtain accurate and consistent position locking every time it is installed or replaced. This fundamentally solves the problem of cumulative deviation when multiple processes and multiple templates are matched, and lays a solid foundation for high-precision stamping.

[0040] The first forming part 107 and the second forming part 108 integrated on the base plate 101, together with the layered middle mold plate 102 (acting on the second forming part 108) and the upper mold plate 103 (covering the first forming part 107 and the middle mold plate 102), innovatively integrate the complex stamping process (such as pre-forming, punching, flanging, finishing, etc.) that originally required multiple sets of molds and multiple consecutive stations into a single mold. The first stamping can be performed through the upper mold stamping groove 114, the middle mold stamping groove 112 and the lower mold stamping groove. Then, the upper template 103 is removed to allow for the stamping of the first forming part 107, and then the middle template 102 is removed to allow for the stamping of the second forming part 108. This greatly shortens the production line length, significantly reduces the occupation of expensive production space, and eliminates the fitting errors caused by part transfer and positioning between traditional continuous stamping processes. It should be noted that, in order to cooperate with the stamping operations of the first forming part 107, the second forming part 108, and the upper, middle, and lower die stamping grooves, the stamping die head of this utility model includes the following: Figure 8 The rear stamping head 135, the middle stamping head 136 and the front stamping head 137 shown are independent of each other in order to coordinate stamping operations in different areas and different processes.

[0041] The locking groove 109, which runs through the upper template 103, the middle template 102, and the base plate 101, works in conjunction with the locking component 110 on the worktable 100 to lock the middle template 102. The upper template 103 is locked by the auxiliary positioning component 111. This achieves rigid integrated locking of the three key templates (upper, middle, and base plate). This through-type locking structure provides extremely high overall rigidity and stability, effectively resisting the huge impact and lateral forces generated during the stamping of high-strength sheet metal parts. It ensures the dimensional stability and forming accuracy of the mold under complex and high-load conditions, and avoids product defects caused by template displacement or deformation.

[0042] The combined effects of precise positioning, process integration, and secure locking directly improve the stamping quality of high-strength sheet metal parts, ensuring that the high-precision requirements of complex shapes and dimensions are met. At the same time, it increases overall production efficiency and reduces scrap rates and equipment maintenance costs caused by inter-process transfers and positioning.

[0043] By integrating multiple processes, the production line configuration is simplified, and the number of operating stations and manpower requirements are reduced, thereby significantly reducing the overall production cost while ensuring or even improving product quality.

[0044] This utility model's combined multi-functional stamping die ensures the positional consistency of the base plate 101 during multiple operations through the precise alignment of the base plate positioning post 105 and the positioning groove. Its unique layered design, combined with the setting of the first forming part 107 and the second forming part 108, allows multiple complex stamping processes to be completed in one stamping station. The structure of the locking member 110 penetrating the locking groove 109 realizes the stable connection and overall collaborative work of each template, thereby significantly shortening the production line length, reducing space occupation, lowering production costs, and fundamentally eliminating the risk of misalignment between multiple processes, effectively improving the production quality, precision, and efficiency of key high-strength sheet metal parts.

[0045] In this embodiment of the present invention, the substrate positioning groove 106 includes a front substrate positioning groove 115 and a rear substrate positioning groove 116 symmetrically opened at the front and rear ends of the substrate component 101, respectively, and a left positioning groove 117 and a right positioning groove 118 symmetrically opened on the left and right sides of the substrate component 101, respectively. The left positioning groove 117 and the right positioning groove 118 respectively include a long positioning groove 119 and a short positioning groove 120.

[0046] By symmetrically setting substrate positioning grooves 106 at the front end, rear end, left side, and right side (the left and right sides also include long and short double groove structures), a precision positioning network covering the entire circumference of the substrate 101 is formed. The combination of long and short grooves effectively resists the horizontal shear force and rotational torque during the stamping process, and the differentiated groove design realizes the progressive guidance and multiple constraints on the positioning posts. This all-round symmetrical layout significantly improves the substrate 101's resistance to displacement and torsion under complex stamping loads, ensuring that the positional repeatability accuracy between the substrate 101 and the template is stable at the micron level during multi-process integrated stamping. It fundamentally eliminates the cumulative stamping error caused by insufficient positioning, and also plays the role of mistake-proof design (if the front and rear directions are reversed, the positions of the long positioning groove 119 and the short positioning groove 120 will not match the substrate positioning). It simplifies the mold assembly and adjustment process and greatly improves the forming consistency and yield of high-strength sheet metal parts.

[0047] In this embodiment of the present invention, the substrate positioning post 105 is fixed on the workbench 100, and a substrate fastening bolt 121 is screwed onto the side wall of the substrate positioning post 105. The substrate fastening bolt 121 passes through the substrate positioning post 105 and is screwed into the substrate component 101.

[0048] By screwing a base plate fastening bolt 121 onto the side wall of the base plate positioning post 105 fixed on the worktable 100, the bolt passes through the base plate positioning post 105 and forms a rigid connection with the base plate component 101. This design retains the precise horizontal positioning function of the positioning post for the base plate component 101, and through the synergistic effect of the locking force applied by the bolt and the base plate positioning post 105, it significantly enhances the base plate component 101's resistance to horizontal displacement and vibration loosening stability during high-speed stamping. At the same time, the detachable screw connection structure of the bolt allows for quick maintenance of the base plate component 101, solving the problems of stress concentration and maintenance difficulties caused by traditional welding fixation, and greatly improving mold assembly efficiency, long-term reliability, and the forming consistency of key sheet metal parts.

[0049] In this embodiment of the present invention, the upper end face of the substrate 101 is provided with a middle mold mounting groove 122, and the lower end face of the middle mold template 102 is formed with a middle mold positioning block 123 that aligns and cooperates with the middle mold mounting groove 122.

[0050] By opening a middle mold mounting groove 122 on the upper end face of the base plate 101 and forming a precise alignment and fitting with the middle mold positioning block 123 formed at the lower end of the middle template 102, boltless mechanical positioning of the middle template 102 on the base plate 101 is achieved. This design not only ensures zero-deviation vertical coaxiality between the middle template 102 and the base plate 101, effectively eliminating the risk of lateral misalignment during the stamping process, but its embedded structure also significantly improves the lateral displacement rigidity and vibration stability of the middle template 102 under high-speed stamping conditions. At the same time, it simplifies the mold assembly and disassembly process—quick positioning and separation are achieved through the guiding action of the positioning block, greatly shortening the mold maintenance time and avoiding the local stress concentration problem caused by the traditional bolt fixing method. This ensures the durability of stamping accuracy and the consistency of the forming quality of key sheet metal parts during long-term use.

[0051] In this embodiment of the utility model, the upper template 103 includes an upper mold front plate 124 and an upper mold rear plate 125. The upper mold front plate 124 is aligned and fitted with the first forming part 107, and the upper mold rear plate 125 is aligned and fitted with the middle template 102. The front end of the upper mold rear plate 125 is provided with left and right symmetrical snap-fit ​​grooves 127, and the rear end of the upper mold front plate 124 is fixedly provided with a snap-fit ​​block 128 that snaps and fits in the snap-fit ​​groove 127.

[0052] During the stamping process, the workpiece to be stamped is first mounted on the base plate 101. Then, the workpiece is fixed by the middle die plate 102 and the upper die plate 103. Then, the first stamping is performed by the rear stamping head 135 in the upper die stamping groove 114, the middle die stamping groove 112, and the lower die stamping groove. After the stamping is completed, the upper die front plate 124 and the upper die rear plate 125 are removed, and the first forming part 107 is exposed. The stamping operation of the first forming part 107 can be performed by the front stamping head 137 (at this time, the middle die plate 102...). (It plays a role in stabilizing and locking the workpiece to be stamped). After the stamping operation of the first forming part 107 is completed, the upper die front plate 124 is reinstalled on the first forming part 107, and then the middle die plate 102 is removed. The stamping operation of the second forming part 108 is carried out through the middle stamping head 136 (at this time, the upper die front plate 124 plays a role in stabilizing and locking the workpiece to be stamped). After the stamping is completed, the upper die front plate 124 is removed, and then the formed workpiece is removed. Then another workpiece to be stamped is installed on the base plate 101 to carry out the next operation cycle.

[0053] Meanwhile, the upper template 103 is decomposed into independent modules of the upper mold front plate 124 and the rear plate. When there is local wear (such as the forming area of ​​the front plate), a single part can be directly replaced to avoid the whole part being scrapped.

[0054] The symmetrical fitting design of the rear plate slot 127 and the front plate block 128 forms a self-aligning mechanical lock (shortening assembly time), and the rigid contact of the double-sided contact surfaces eliminates assembly deviation.

[0055] It supports multi-process compatibility by replacing front plate modules with different functions (such as punching / flanging / finishing) on ​​the same mold base, thereby reducing production line length and eliminating inter-process transfer errors.

[0056] In this embodiment of the utility model, the auxiliary positioning component 111 includes a positioning base 129 fixed on the workbench 100, and an L-shaped auxiliary positioning rod 130 rotatably mounted on the positioning base 129. The auxiliary positioning rod 130 is locked to the upper end face of the upper template 103.

[0057] The L-shaped auxiliary positioning rods 130 arranged around the upper template 103 and the positioning base 129 form an enclosing structure. The rods of the auxiliary positioning rods 130 rigidly abut against the side surface of the upper template 103 to offset the lateral impact force.

[0058] The upper end of the auxiliary positioning rod 130 is locked to the top surface of the upper template 103 to form a three-dimensional constraint system to avoid the risk of template warping during high-speed continuous stamping.

[0059] The L-shaped auxiliary positioning rod 130 and the positioning base 129 are rotatably connected to achieve "pulling unlock", making the loading and unloading of the upper template 103 more convenient.

[0060] In this embodiment of the utility model, the middle template 102 is provided with a Y-shaped groove 131 that aligns and cooperates with the locking member 110, and the locking member 110 is arranged in a Y-shape within the Y-shaped groove 131;

[0061] When rotated to a certain angle, the Y-shaped locking member 110 and the Y-shaped groove 131 do not overlap, so the locking member 110 can lock the middle template 102. When rotated to another angle, the Y-shaped locking member 110 and the Y-shaped groove 131 overlap, so the middle template 102 can pass through the locking member 110. This reduces the number of rotations of the locking member 110, and there is no need to unscrew the locking member 110 from the worktable 100. Only a small amount of screwing is needed to lock and unlock the middle template 102 and the locking member 110, making it more convenient to use.

[0062] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A combined multi-functional press die characterized by, Includes a workbench (100), on which a base plate (101) is mounted, and on which a middle template (102) and an upper template (103) are sequentially covered upwards. The worktable (100) is fixed with a positioning component (104) for limiting the position of the substrate (101). The positioning component (104) includes a plurality of substrate positioning posts (105) mounted on the worktable (100). The substrate (101) is provided with a substrate positioning groove (106) that aligns with the substrate positioning posts (105). The upper end surface of the substrate (101) is provided with a first molding part (107) and a second molding part (108) from front to back. The middle template (102) is placed on the second forming part (108); The upper template (103) covers the first forming part (107) and the middle template (102); The upper template (103) has a locking groove (109) that extends downward through the middle template (102) and the base plate (101) on its end face. A locking member (110) is screwed onto the worktable (100). The locking member (110) extends upward from the locking groove (109) and locks into the middle template (102). The worktable (100) is also provided with an auxiliary positioning component (111) surrounding the upper template (103). The middle template (102) has a middle die stamping groove (112) for stamping products, the base plate (101) has a base plate stamping groove (113) that aligns with the middle die stamping groove (112), and the upper template (103) has an upper die stamping groove (114) that aligns with the middle die stamping groove (112).

2. The combined multi-functional press die according to claim 1, wherein The substrate positioning groove (106) includes a front substrate positioning groove (115) and a rear substrate positioning groove (116) symmetrically opened at the front and rear ends of the substrate (101), and a left positioning groove (117) and a right positioning groove (118) symmetrically opened on the left and right sides of the substrate (101), respectively. The left positioning groove (117) and the right positioning groove (118) include a long positioning groove (119) and a short positioning groove (120), respectively.

3. The combined multi-functional stamping die according to claim 2, characterized in that, The substrate positioning post (105) is fixed on the worktable (100). A substrate fastening bolt (121) is screwed onto the side wall of the substrate positioning post (105). The substrate fastening bolt (121) passes through the substrate positioning post (105) and is screwed into the substrate component (101).

4. A combined multi-functional stamping die according to claim 3, characterized in that, The upper end face of the base plate (101) is provided with a middle mold mounting groove (122), and the lower end face of the middle mold plate (102) is formed with a middle mold positioning block (123) that is aligned and matched with the middle mold mounting groove (122).

5. A combined multi-functional stamping die according to any one of claims 1-4, characterized in that, The upper template (103) includes an upper mold front plate (124) and an upper mold rear plate (125). The upper mold front plate (124) is aligned with the first forming part (107), and the upper mold rear plate (125) is aligned with the middle template (102). The front end of the upper mold rear plate (125) is provided with left and right symmetrical snap-fit ​​grooves (127), and the rear end of the upper mold front plate (124) is fixed with a snap-fit ​​block (128) that snaps into the snap-fit ​​groove (127).

6. A combined multi-functional stamping die according to claim 5, characterized in that, The auxiliary positioning component (111) includes a positioning base (129) fixed on the worktable (100), and an L-shaped auxiliary positioning rod (130) is rotatably provided on the positioning base (129). The auxiliary positioning rod (130) is locked to the upper end face of the upper template (103).

7. A combined multi-functional stamping die according to claim 5, characterized in that, The middle template (102) has a Y-shaped groove (131) that aligns with the locking member (110), and the locking member (110) is arranged in a Y-shape within the Y-shaped groove (131).

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