Stamping forming anti-rebound mechanism for automobile high-strength plate covering

Abstract

The utility model relates to stamping process technical field especially, it is a kind of automobile high-strength plate covering piece stamping forming anti-rebound mechanism, specifically includes: male die is arranged at the bottom end of fixed block, and fixed block is connected with the stamping end of punch press, and a plurality of slidable guide posts are peripherally arranged on fixed block, and the bottom end of multiple guide posts is connected with the top end of floating pressure edge ring, female die has forming cavity, and multiple through slots are evenly arranged on female die, and multiple through slots are fixedly provided with elastic support seat, and the top end of elastic support seat is provided with support plate, and support plate is provided with support rod, female die is provided with bush, and connecting rod is slidably arranged in bush, the bottom end of connecting rod is provided with spherical recess, and the top end of support rod is spherical head. Solve the rebound caused by the elastic deformation of steel plate in the process of stamping forming, and the steel plate will be warped, twisted or locally deformed after separating from die, and then affect the assembly accuracy of steel plate.

Description

Technical Field

[0001] This utility model relates to the field of stamping technology, and in particular to an anti-springback mechanism for stamping high-strength steel sheet body panels for automobiles. Background Technology

[0002] Stamping of high-strength steel body panels for automobiles refers to the process of using molds and presses to apply external force to high-strength steel sheets, causing them to undergo plastic deformation, thereby manufacturing body panels that meet design requirements.

[0003] However, for example, during the stamping process of the hood, the springback caused by the elastic deformation of the steel sheet can cause the steel sheet to warp, twist, or wrinkle due to local deformation after it leaves the mold, which in turn affects the assembly accuracy of the steel sheet.

[0004] Therefore, how to provide a springback prevention mechanism for stamping high-strength steel sheet body panels to counteract the wrinkling caused by springback due to elastic deformation of the steel sheet during the stamping process and ensure the forming accuracy of the steel sheet is an urgent technical problem to be solved. Utility Model Content

[0005] This utility model provides an anti-springback mechanism for stamping high-strength steel sheet body panels for automobiles. It solves the problem that during the stamping process, the springback caused by the elastic deformation of the steel sheet can cause the steel sheet to warp, twist, or wrinkle after it leaves the mold, thus affecting the assembly accuracy of the steel sheet.

[0006] This utility model provides an anti-springback mechanism for stamping high-strength steel plate body panels for automobiles, including: a punch, the punch being disposed at the bottom end of a fixed block, the fixed block being connected to the stamping end of a stamping machine, and the fixed block being provided with a plurality of slidable guide posts circumferentially, the bottom ends of the plurality of guide posts being connected to the top end of a floating pressure ring; A die has a forming cavity and multiple through slots evenly arranged on it. Each of the multiple through slots has an elastic support seat fixedly arranged in it. A support plate is provided at the top of the elastic support seat, and a support rod is provided on the support plate. A bushing is provided on the die and is located above the through slots. A connecting rod is slidably arranged in the bushing. A spherical recess is provided at the bottom of the connecting rod, and a spherical head is provided at the top of the support rod. The support rod provides self-aligning support for the connecting rod through the spherical head and the spherical recess. When the punch and the die are closed, the punch passes through the through hole on the floating pressure ring and enters the forming cavity.

[0007] In one possible implementation, the elastic support includes a bearing seat, a spring seat, and a return spring. The bearing seat is fixedly disposed in the through groove, the spring seat is disposed on the top surface of the bearing seat, and the spring seat is connected to the support plate through the return spring.

[0008] In one possible implementation, the elastic support further includes a positioning pin, connecting rods are symmetrically arranged on the bearing seat, the positioning pin is arranged between two of the connecting rods, a positioning groove is provided on the body of the support rod, and the positioning pin passes through the positioning groove.

[0009] In one possible implementation, a positioning rod is provided on the bearing seat, and a limiting sleeve is provided on the support plate, with the positioning rod slidably connected to the limiting sleeve.

[0010] In one possible implementation, the fixing block is embedded with a plurality of guide sleeves, the number of which is the same as the number of guide posts, and the guide posts slide within the guide sleeves.

[0011] In one possible implementation, a limit block is provided at the top of the guide post.

[0012] In one possible implementation, a groove is provided inside the guide sleeve, and a slider is provided on the guide post. When the guide post slides inside the guide sleeve, the slider slides inside the groove.

[0013] In one possible implementation, the bottom end of the fixed block is provided with an abutment block, and the top surface of the floating pressure ring is provided with an abutment groove corresponding to the abutment block.

[0014] In one possible implementation, both the abutting block and the abutting groove are wedge-shaped.

[0015] In one possible implementation, the inner wall of the floating blank holder is provided with a plurality of drawing rib blocks in the circumferential direction, and the forming cavity is provided with a plurality of drawing rib grooves corresponding to the drawing rib blocks.

[0016] The beneficial effects of this invention are as follows: The stamping end of the press moves downward, the fixed block and the punch move downward synchronously, and the guide post and the floating blank holder are pressed down synchronously due to gravity. After the floating blank holder contacts the workpiece on the die, the guide post slides upward in the fixed block, and the punch continues to move downward, passing through the through hole of the blank holder and entering the die forming cavity. At the same time, the bottom surface of the floating blank holder abuts against the connecting rod, and the connecting rod applies a downward force to the support rod through the cooperation of the spherical head and the spherical recess. The support rod moves downward in the bushing, applying pressure to the elastic support seat. During the die closing process, the punch presses the workpiece into the forming cavity, and the deformation potential energy accumulated by the elastic support seat is transferred to the floating blank holder through the support plate, support rod, and connecting rod. The floating blank holder is compressed, and the fixed block abuts against the floating blank holder, continuously applying a downward force to prevent material wrinkling. Through the self-aligning cooperation formed by the spherical head at the top of the support rod and the spherical recess at the bottom of the connecting rod, it is ensured that the connecting rod always bears axial force, making the force applied by the floating blank holder to the workpiece more uniform and further preventing material wrinkling. This solves the problem that wrinkles occur in the forming area of ​​the steel sheet during the stamping process due to its elasticity, thus affecting the assembly accuracy. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an exploded perspective view of the anti-rebound mechanism for stamping a high-strength steel sheet covering for automobiles according to this utility model. Figure 2 This is a front view of the first state of the anti-springback mechanism for stamping and forming of a high-strength steel plate cover for automobiles according to this utility model; Figure 3 This is a front view of the second state of the anti-springback mechanism for stamping and forming of a high-strength steel plate cover for automobiles according to this utility model. Figure 4 This is a cross-sectional perspective view of a stamping anti-springback mechanism for a high-strength steel sheet covering for automobiles according to this utility model. Figure 5 This is an enlarged perspective view of region A of the anti-rebound mechanism for stamping a high-strength steel sheet covering part for automobiles according to this utility model. Figure 6 This is an enlarged perspective view of region B of the anti-rebound mechanism for stamping a high-strength steel sheet covering part for automobiles according to this utility model. Explanation of reference numerals in the attached figures: 1. Punch; 2. Fixing block; 3. Stamping end; 4. Guide post; 5. Floating blank holder; 6. Die; 7. Forming cavity; 8. Through slot; 9. Elastic support seat; 901. Bearing seat; 902. Spring seat; 903. Return spring; 904. Positioning pin; 10. Support plate; 11. Support rod; 12. Bushing; 13. Connecting rod; 14. Spherical recess; 15. Spherical head; 16. Through hole; 17. Connecting rod; 18. Positioning groove; 19. Positioning rod; 20. Limiting sleeve; 21. Guide sleeve; 22. Limiting block; 23. Groove; 24. Slider; 25. Abutment block; 26. Abutment groove; 27. Drawing rib block; 28. Drawing rib groove; 29. ​​Workpiece. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] See Figure 1 , Figure 3 , Figure 4 and Figure 6 This utility model provides a springback prevention mechanism for stamping high-strength steel sheet body panels for automobiles, comprising: a punch 1, which is disposed at the bottom end of a fixed block 2, the fixed block 2 being connected to the stamping end 3 of a stamping press; a plurality of slidable guide posts 4 are circumferentially arranged on the fixed block 2, the bottom ends of the plurality of guide posts 4 being connected to the top end of a floating pressure ring 5; a die 6, which has a forming cavity 7; a plurality of through slots 8 are evenly arranged on the die 6; and an elastic support seat 9 is fixedly disposed in each of the plurality of through slots 8, the top end of the elastic support seat 9 being... A support plate 10 is provided, and a support rod 11 is provided on the support plate 10. A bushing 12 is provided on the die 6 and is located above the through groove 8. A connecting rod 13 is slidably provided inside the bushing 12. A spherical recess 14 is provided at the bottom end of the connecting rod 13. The top end of the support rod 11 is a spherical head 15. The support rod 11 provides self-aligning support for the connecting rod 13 through the spherical head 15 and the spherical recess 14. When the punch 1 and the die 6 are closed, the punch 1 passes through the through hole 16 on the floating pressure ring 5 and enters the forming cavity 7.

[0023] Preferably, there are four guide pillars 4, located at the four corners of the fixed block 2. The die 6 has protrusions, the forming cavity 7 is located within the protrusions, and through grooves 8 are located on both sides of the protrusions. When the workpiece 29 is placed in the forming cavity 7, there is a certain gap between it and the connecting rod 13.

[0024] Specifically, the press drives the stamping end 3 to move downwards, the fixed block 2 and the punch 1 move downwards synchronously, and the guide post 4 and the floating blank holder 5 move downwards due to gravity. After the bottom surface of the floating blank holder 5 contacts the workpiece 29 on the die 6, the guide post 4 slides upwards in the fixed block 2, and the punch 1 continues to descend, passing through the through hole 16 of the floating blank holder 5 and entering the forming cavity 7 of the die 6. At the same time, the bottom surface of the floating blank holder 5 abuts against the connecting rod 13, and the connecting rod 13 applies a downward force to the support rod 11 through the cooperation of the spherical head 15 and the spherical recess 14. The support rod 11 moves downwards in the bushing 12, putting pressure on the support plate 10 and the elastic support seat 9.

[0025] During the mold closing process, the punch 1 presses the workpiece 29 into the forming cavity 7. The deformation potential energy accumulated by the elastic support seat 9 is transmitted to the floating pressure ring 5 through the support plate 10, support rod 11 and connecting rod 13. The floating pressure ring 5 is compressed, and the fixed block 2 abuts against the floating pressure ring 5 and continuously applies a force downward to the circumference of the workpiece 29 to prevent wrinkling in the forming area of ​​the workpiece 29.

[0026] When the mold opens, the press drives the stamping end 3 to move upward, and the fixed block 2 and the punch 1 move upward synchronously. The upward force applied by the elastic support seat 9 is greater than the weight of the guide post 4 and the floating pressure ring 5. The floating pressure ring 5 disengages from the workpiece 29, and the elastic support seat 9, support rod 11, support plate 10 and connecting rod 13 reset, completing the demolding of the workpiece 29. When the mold closes, the floating pressure ring 5 first contacts the workpiece 29 and applies constant pressure to constrain the material flow. As the punch 1 moves downward, the floating pressure ring 5 and the die 6 form a clamping area, generating frictional resistance and inhibiting the circumferential shrinkage of the workpiece 29. At the same time, the elastic support seat 9 dynamically adjusts the local support force through the spherical self-aligning structure of the support rod 11 and connecting rod 13, so that the material deforms evenly in the forming cavity 7, thereby preventing wrinkling in the forming area of ​​the workpiece 29.

[0027] It should be noted that the floating blank holder 5 and the stamping machine are parts known to those skilled in the art, and this application has not made any improvements. Therefore, their working principles will not be described in detail.

[0028] See Figure 2 and Figure 6 In some embodiments, the elastic support 9 includes a bearing seat 901, a spring seat 902 and a return spring 903. The bearing seat 901 is fixedly disposed in the through groove 8, and the spring seat 902 is disposed on the top surface of the bearing seat 901. The spring seat 902 is connected to the support plate 10 through the return spring 903.

[0029] The support base 901 is fixed in the through groove 8 to provide a support foundation. The spring seat 902 is installed on top of the support base 901 and is elastically connected to the support plate 10 through the return spring 903. When the support plate 10 is subjected to a downward force, it will press against the return spring 903. When the return spring 903 is compressed to a certain extent, it will provide a constant upward reaction force, which helps to maintain the stability of the floating pressure ring 5 pressing the workpiece 29. Preferably, the support base 901 is detachably connected to the through groove 8, which facilitates the inspection and replacement of the support base 901, spring seat 902 and return spring 903.

[0030] It should be noted that when it is necessary to adjust the magnitude of the constant upward reaction force provided by the elastic support seat 9, the magnitude of the elastic force of the return spring 903 can be adjusted by replacing the return spring 903 with different specifications or by adding shims between the return spring 903 and the spring seat 902, so as to meet different requirements.

[0031] In some embodiments, the elastic support base 9 further includes a positioning pin 904. Connecting rods 17 are symmetrically arranged on the bearing base 901, and a positioning pin 904 is disposed between the two connecting rods 17. A positioning groove 18 is provided on the body of the support rod 11, and the positioning pin 904 passes through the positioning groove 18. The positioning pin 904 slides within the positioning groove 18, thus limiting the travel of the support rod 11.

[0032] In some embodiments, a positioning rod 19 is provided on the support base 901, and a limiting sleeve 20 is provided on the support plate 10. The positioning rod 19 is slidably connected to the limiting sleeve 20. When the support plate 10 is moved under force, it will move circumferentially relative to the support base 901, so that the return spring 903 is axially stressed between the support plate 10 and the spring seat 902. This ensures that the reaction force exerted by the return spring 903 on the support plate 10 is also axial, making the reaction force exerted by the connecting rod 13 on the floating pressure ring 5 more uniform and improving the stability of the floating pressure ring 5 pressing the workpiece 29.

[0033] See Figure 5 In some embodiments, the fixing block 2 is embedded with multiple guide sleeves 21, the number of guide sleeves 21 being the same as the number of guide posts 4, and the guide posts 4 slide within the guide sleeves 21. Furthermore, a limiting block 22 is provided at the top of the guide post 4. The guide post 4 is slidably connected to the fixing block 2 via the guide sleeves 21. The guide sleeves 21 make the sliding of the guide post 4 on the fixing block 2 more stable, and the limiting block 22 limits the sliding of the guide post 4, preventing the guide post 4 from detaching from the guide sleeves 21.

[0034] In some embodiments, a groove 23 is provided inside the guide sleeve 21, and a slider 24 is provided on the guide post 4. When the guide post 4 slides inside the guide sleeve 21, the slider 24 slides inside the groove 23. The groove 23 and the slider 24 are provided so that the guide post 4 can only slide axially inside the guide sleeve 21, thereby increasing the stability of the guide post 4 sliding inside the guide sleeve 21.

[0035] In some embodiments, the bottom end of the fixing block 2 is provided with an abutment block 25, and the top surface of the floating pressure ring 5 is provided with an abutment groove 26 corresponding to the abutment block 25. Further, both the abutment block 25 and the abutment groove 26 are wedge-shaped.

[0036] When the fixed block 2 moves toward the floating pressure ring 5, the abutting block 25 enters the abutting groove 26, and the bottom surface of the fixed block 2 abuts the top surface of the floating pressure ring 5. Both the abutting block 25 and the abutting groove 26 are wedge-shaped to facilitate mutual positioning of the abutting block 25 and the abutting groove 26.

[0037] See Figure 1In some embodiments, the inner wall of the floating blank holder 5 is provided with a plurality of drawing ribs 27 circumferentially, and the forming cavity 7 is provided with a plurality of drawing rib grooves 28 corresponding to the drawing ribs 27. The drawing ribs 27 circumferentially arranged on the inner wall of the floating blank holder 5 and the corresponding drawing rib grooves 28 in the forming cavity 7 work together to form a controllable radial constraint force through mutual interlocking. This facilitates the adjustment of the flow resistance of the workpiece 29 during stamping.

[0038] Work process The stamping end 3 of the press drives the fixed block 2 downward, causing the punch 1 to move towards the die 6. Multiple guide posts 4 on the fixed block 2 slide along the guide sleeve 21, simultaneously driving the floating blank holder 5 downward. The slider 24 on the guide post 4 slides within the groove 23 of the guide sleeve 21, ensuring stable movement and preventing it from dislodging via the limiting block 22 at the top. When the floating blank holder 5 contacts the workpiece 29, the fixed block 2 continues to press down, and its bottom abutment block 25 gradually embeds into the abutment groove 26 on the top surface of the floating blank holder 5. Since both the abutment block 25 and the abutment groove 26 are wedge-shaped structures, they can provide progressive blank holder force, ensuring uniform pressing of the workpiece 29. Simultaneously, the drawing rib block 27 on the inner wall of the floating blank holder 5 initially engages with the drawing rib groove 28 of the die 6, adjusting the material flow resistance. The punch 1 passes through the through hole 16 of the floating blank holder 5 and enters the forming cavity 7 of the die 6, beginning to stamp the workpiece 29. At this time, the floating blank holder 5 remains stable under the constraint of the guide post 4, preventing wrinkling of the workpiece 29. During the forming process, the local springback force of the workpiece 29 acts on the support plate 10 of the die 6, causing it to compress the elastic support seat 9 below. The return spring 903 of the elastic support seat 9 is deformed under pressure, providing reverse support force and suppressing springback. At the same time, the spherical head 15 of the support rod 11 and the spherical recess 14 at the bottom of the connecting rod 13 self-align, ensuring that the connecting rod 13 slides smoothly in the bushing 12 and adapts to the deformation of the workpiece 29. The positioning pin 904 of the elastic support seat 9 passes through the positioning groove 18 of the support rod 11, limiting its radial offset; the positioning rod 19 on the bearing seat 901 slides with the limiting sleeve 20 of the support plate 10, ensuring vertical movement accuracy. After the stamping is completed, the stamping machine drives the fixed block 2 to rise, the punch 1 exits the forming cavity 7, and the floating blank holder 5 is reset under the guidance of the guide post 4. The return spring 903 of the elastic support seat 9 pushes the support plate 10 back to its original position, and the connecting rod 13 slides back to its original position in the bushing 12, preparing for the next stamping.

[0039] This application effectively suppresses springback during high-strength sheet stamping and improves forming accuracy through the synergistic effect of floating edge pressure, elastic support, and dynamic self-aligning structure.

[0040] In the above embodiments, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "method," "specific method," or "some methods," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or method is included in at least one embodiment or method of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or method. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or methods. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or methods described in this specification, as well as the features of different embodiments or methods.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A springback prevention mechanism for stamping high-strength steel sheet body panels for automobiles, characterized in that, include: A punch is provided at the bottom end of a fixed block, which is connected to the stamping end of a press. The fixed block is provided with multiple slidable guide posts in the circumferential direction, and the bottom ends of the multiple guide posts are connected to the top end of a floating pressure ring. A die has a forming cavity and multiple through slots evenly arranged on it. Each of the multiple through slots has an elastic support seat fixedly arranged in it. The top of the elastic support seat is provided with a support plate, and the support plate is provided with a support rod. A bushing is provided on the die and is located above the through slots. A connecting rod is slidably arranged in the bushing. The bottom end of the connecting rod is provided with a spherical recess. The top end of the support rod is a spherical head. The support rod provides self-aligning support for the connecting rod through the spherical head and the spherical recess. When the punch and the die are closed, the punch passes through the through hole on the floating pressure ring and enters the forming cavity.

2. The anti-springback mechanism for stamping high-strength steel sheet body panels for automobiles according to claim 1, characterized in that, The elastic support includes a bearing seat, a spring seat, and a return spring. The bearing seat is fixedly disposed in the through groove, and the spring seat is disposed on the top surface of the bearing seat. The spring seat is connected to the support plate through the return spring.

3. The anti-springback mechanism for stamping high-strength steel sheet body panels for automobiles according to claim 2, characterized in that, The elastic support base also includes a positioning pin. Connecting rods are symmetrically arranged on the bearing base, and the positioning pin is arranged between the two connecting rods. A positioning groove is provided on the body of the support rod, and the positioning pin passes through the positioning groove.

4. The anti-springback mechanism for stamping high-strength steel sheet body panels for automobiles according to claim 3, characterized in that, The bearing seat is provided with a positioning rod, and the support plate is provided with a limiting sleeve. The positioning rod is slidably connected to the limiting sleeve.

5. The anti-springback mechanism for stamping high-strength steel sheet body panels for automobiles according to claim 1, characterized in that, The fixing block has multiple guide sleeves embedded in it, the number of which is the same as the number of guide posts, and the guide posts slide within the guide sleeves.

6. The anti-springback mechanism for stamping high-strength steel sheet body panels for automobiles according to claim 5, characterized in that, A limit block is provided at the top of the guide post.

7. The anti-springback mechanism for stamping high-strength steel sheet body panels for automobiles according to claim 6, characterized in that, The guide sleeve has a groove, and the guide post has a slider. When the guide post slides inside the guide sleeve, the slider slides inside the groove.

8. The anti-springback mechanism for stamping high-strength steel sheet body panels for automobiles according to claim 1, characterized in that, The bottom end of the fixed block is provided with an abutment block, and the top surface of the floating pressure ring is provided with an abutment groove corresponding to the abutment block.

9. The anti-springback mechanism for stamping high-strength steel sheet body panels for automobiles according to claim 8, characterized in that, Both the abutting block and the abutting groove are wedge-shaped.

10. The anti-springback mechanism for stamping high-strength steel sheet body panels for automobiles according to claim 1, characterized in that, The inner wall of the floating pressure ring is provided with a plurality of drawing rib blocks in the circumferential direction, and the forming cavity is provided with a plurality of drawing rib grooves corresponding to the drawing rib blocks.

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