Stamping die for automobile chassis support

Abstract

The invention discloses a stamping die for an automobile chassis support, and belongs to the technical field of stamping equipment.The stamping die for the automobile chassis support comprises a base, a through hole is formed in the middle of the base in a penetrating mode, a fixing frame is fixedly connected to the surface of the top end of the base, and sliding grooves are formed in the two sides of the top of the fixing frame; and two hydraulic devices are installed on the surface of the top end of the fixing frame, anti-clamping mechanisms are installed at the penetrating ends of the hydraulic devices, the two ends of each anti-clamping mechanism are located in the sliding grooves, and a self-adaptive buffering mechanism is installed at the bottom of the fixing frame. By adopting the anti-clamping stagnation mechanism and the self-adaptive buffering mechanism, a finished product can be effectively helped to fall off from a die smoothly, the situation that a part is clamped in the die due to complex shape or die design in the stamping process is avoided, meanwhile, the clamped part can be loosened easily through periodic left-right swinging, it is ensured that the part is moved out smoothly, and the production efficiency is improved. The operation error and the labor intensity are effectively reduced, and the safety and the stability in the production process are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of stamping equipment, and in particular relates to a stamping die for an automobile chassis bracket. Background Art

[0002] The automobile chassis bracket (also known as the chassis support frame or suspension bracket) is a very critical component in the automobile chassis. Its main function is to connect and support the automobile's suspension system, wheels, powertrain and other components to ensure the vehicle's stability and driving safety. It helps absorb and disperse the impact force from the ground and the load changes during vehicle movement by providing the necessary structural support. With the continuous development of the automobile industry, manufacturers have increasingly higher requirements for production efficiency and cost control. The manufacture of chassis brackets, especially the use of modern stamping die technology, can significantly improve production efficiency. Stamping dies can produce a large number of identical chassis brackets at high speed and high precision, while reducing material waste, thereby reducing unit production costs.

[0003] When the existing stamping die of the automobile chassis bracket is performing stamping, the automobile chassis bracket needs to be adapted to different models of cars, so the automobile chassis bracket is often a part of different complex shapes. When the die is stamping, the finished automobile chassis bracket will be stuck in the die due to its shape or material properties. In order to remove the finished product from the die, a push rod or a push device is usually installed in the stamping die. After the stamping is completed, the push rod will automatically push the stamped part upward or outward to push it out of the die. When the part shape is more complex or the material properties are stronger (such as higher hardness or stronger deformation resistance), the thrust of the push rod is not enough to smoothly push the part out, thereby affecting production efficiency. In addition, since the shape of the automobile chassis bracket is more complex, the force applied to the push rod during pushing may be uneven, resulting in the push rod being unable to push the part evenly, which can easily cause part deformation, surface damage, or even get stuck in the die, affecting product quality. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a stamping die for an automobile chassis bracket.

[0005] The technical solution adopted to solve the above technical problems is: a stamping die for an automobile chassis bracket, comprising a base, a through hole being opened through the middle of the base, a fixing frame being fixedly connected to the top surface of the base, slide grooves being opened on both sides of the top of the fixing frame, two hydraulic presses being installed on the top surface of the fixing frame, the telescopic end of the hydraulic press being slidably connected with the fixing frame, an anti-jamming mechanism being installed on the through end of the hydraulic press, both ends of the anti-jamming mechanism being located in the slide groove, and the fixing frame limiting the anti-jamming mechanism, a number of supporting feet being welded to the bottom surface of the base, and an adaptive buffer mechanism being installed at the bottom of the fixing frame.

[0006] The above technical solution can reduce the friction between the finished product and the mold, avoiding surface scratches or mold damage caused by forcibly pushing the finished product out. By controlling the amplitude and strength of the swing, the wear of the finished product and damage to the mold can be effectively reduced, thereby extending the service life of the mold.

[0007] Furthermore, the anti-jamming mechanism includes a movable frame, both ends of the movable frame are located in the slide groove, and the fixed frame limits the movable frame, a servo motor is installed at the center of the top surface of the movable frame, the output end of the servo motor is connected to the movable frame for rotation, and the through end of the servo motor is fixedly connected to an L-shaped rotating plate.

[0008] Furthermore, the other end of the L-shaped rotating plate is universally connected to a connecting frame, the connecting frame is arranged in a U-shaped structure, the two ends of the connecting frame away from the L-shaped rotating plate are fixedly connected to annular plates, and a connecting block is provided between the mobile frame and the connecting frame.

[0009] Through the above technical solution, the pressure and stress in the mold can be balanced to avoid damage to the mold parts caused by the force in a single direction acting on the finished product. By swinging in a left and right cycle, the force can be distributed more evenly and fatigue damage to the mold can be reduced. Since the strong friction and impact between the mold and the finished product are reduced, the wear of the mold is reduced and the service life is extended. The automated swing not only improves production efficiency, but also reduces excessive burden on the mold, ensuring the stability of the mold in long-term use.

[0010] Furthermore, fixed rods are fixedly connected on both sides of the connecting block, and limiting rods are fixedly connected on the other two sides of the connecting block. The connecting frame is rotatably connected to the fixed rods away from the two ends of the L-shaped rotating plate, and the movable frame is rotatably connected to the limiting rods away from the two ends of the servo motor.

[0011] Furthermore, the limiting rod limits the movable frame, the bottom surface of the connecting block is fixedly connected to a first spring, the other end of the first spring is fixedly connected to a sliding rod, the other end of the sliding rod is slidably connected to the connecting block, and an upper mold is installed on the end of the sliding rod and the first spring away from the connecting block.

[0012] Through the above technical solution, the upper mold and the lower mold can be kept in a closed state at all times when they are swung left and right. The stable closure of the mold can reduce the wear caused by vibration or uneven impact force. At the same time, it can avoid accidents caused by loose molds, such as the risk of molds getting stuck or falling off, which helps to ensure operational safety during the production process and protect the safety of workers and equipment.

[0013] Furthermore, the adaptive buffer mechanism includes a fixed plate, a spherical block is universally connected to the middle of the fixed plate, a plurality of fixed columns are fixedly connected to the top surface of the fixed plate, and the plurality of fixed columns are symmetrically distributed in a circular pattern. The other end of the fixed column is fixedly connected to the bottom surface of the base, a damping rod is fixedly connected to the top of the spherical block, and a second spring is provided on the outside of the damping rod.

[0014] Furthermore, one end of the second spring is fixedly connected to the spherical block, and the other end of the second spring is fixedly connected to the damping rod. The damping rod and the second spring are located in the through hole, and the end of the damping rod away from the spherical block is fixedly connected to the first U-shaped seat.

[0015] Through the above technical solution, during the stamping process, the buffering mechanism can effectively reduce the direct effect of the impact force on the parts, avoid the generation of uneven stress, and thus reduce the deformation of the finished product. For chassis brackets with complex shapes, maintaining the buffer can ensure that the finished product has high dimensional accuracy and shape stability, and avoid dimensional errors or shape distortion caused by impact. At the same time, the buffering design helps to smoothly transmit force during the stamping process, avoiding vibrations or fluctuations caused by severe impacts. By gradually releasing the buffering force, the smoothness of the stamping process can be improved, the vibration of the machine can be reduced, and the stability of the equipment and production efficiency can be improved.

[0016] Furthermore, a cross rod is rotatably connected inside the first U-shaped seat, and the other two ends of the cross rod are rotatably connected to the second U-shaped seat. The second U-shaped seat is fixedly connected to a disc at one end away from the cross rod, and a lower mold is installed on the top surface of the disc.

[0017] Furthermore, a plurality of spherical rods are provided at the bottom of the disc, and the plurality of spherical rods are symmetrically distributed around the circumference. One end of the spherical rod is provided with a spherical structure. The spherical end of the spherical rod is slidably connected to the bottom surface of the disc, and an extension plate is provided on the outside of the disc.

[0018] Furthermore, the extension plate on the outside of the disc limits the spherical end of the spherical rod, and the end of the spherical rod away from the disc is slidably connected to the base. The through end of the spherical rod is fixedly connected to a third spring, and the other end of the third spring is fixedly connected to the bottom surface of the base.

[0019] This technical solution effectively improves the efficiency of finished product removal during the stamping process, reduces part deformation and mold damage, and enhances overall production efficiency and product quality. Furthermore, it offers excellent adaptability, capable of handling automotive chassis brackets of varying shapes and structures. For parts with more complex shapes, this design offers enhanced adaptability, ensuring smooth and undamaged part removal.

[0020] The beneficial effects of the present invention are as follows:

[0021] (1) The present invention adopts an anti-jamming mechanism. The servo motor drives the L-shaped rotating plate to rotate, so that the connecting frame performs an up and down circular swinging motion. At the same time, the annular plate moves synchronously with the connecting frame, so that the connecting frame and the fixed rod rotate relative to each other, and the movable frame and the limit rod rotate relative to each other, so that the connecting block performs a longitudinal left and right circular swinging motion in the rotation direction of the connection between the movable frame and the limit rod. The upper mold moves synchronously with the connecting block, so that the upper mold and the lower mold perform left and right circular swinging. It can more flexibly adapt to parts of various shapes and structures, especially chassis brackets with more complex shapes that are difficult to fall off smoothly. The swinging action can ensure the movement trajectory of parts with complex shapes in the mold, making them easy to demold, shortening the time for taking out the finished product, and improving production efficiency.

[0022] (2) The present invention uses an adaptive buffer mechanism. When the upper mold is performing a longitudinal left-right cyclic swinging motion, the disc can be deflected in any direction under the joint action of the first U-shaped seat, the cross rod and the second U-shaped seat, so that the disc follows the upper mold to perform a longitudinal left-right cyclic swinging motion. At the same time, a number of spherical rods can be telescopically moved up and down to different degrees under the action of the third spring. In addition, the spherical block and the fixed plate rotate relative to each other, and the damping rod and the second spring are synchronously telescopically moved up and down to adapt to the angular deviation generated when the disc is performing a left-right cyclic swinging motion, and can always maintain a supporting effect on the disc, thereby realizing the upper mold. The upper and lower molds always remain in a closed state during the cyclic swing. At the same time, the lower mold can be cushioned during stamping, which helps to ensure that the mold always maintains accurate alignment during the stamping process. This design can avoid part deformation caused by mold displacement or loosening, ensure that each stamping can accurately form the designed shape of the part, ensure product quality, and effectively absorb the impact force generated during the stamping process to avoid these impact forces directly acting on the mold, thereby reducing fatigue and wear of the mold material. Especially when stamping thicker or harder materials, the buffer mechanism can reduce long-term damage to the mold and extend the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the first perspective of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the second viewing angle of the present invention;

[0025] Figure 3 3 is a schematic structural diagram of the present invention from a third perspective;

[0026] Figure 4 This is an exploded view of the anti-jamming mechanism of the present invention from a first perspective;

[0027] Figure 5This is an exploded view of the anti-jamming mechanism of the present invention from a second perspective;

[0028] Figure 6 This is a schematic structural diagram of the adaptive buffer mechanism of the present invention from a first perspective;

[0029] Figure 7 This is a schematic structural diagram of the adaptive buffer mechanism of the present invention from a second viewing angle.

[0030] Figure numerals: 1. base; 2. through hole; 3. supporting foot; 4. fixing frame; 5. hydraulic press; 6. anti-jamming mechanism; 7. adaptive buffer mechanism; 8. slide; 61. movable frame; 62. servo motor; 63. L-shaped rotating plate; 64. connecting frame; 65. annular plate; 66. connecting block; 67. fixing rod; 68. limiting rod; 69. sliding rod; 610. first spring; 611. upper mold; 71. fixing plate; 72. spherical block; 73. damping rod; 74. second spring; 75. fixing column; 76. spherical rod; 77. disc; 78. lower mold; 79. third spring; 710. first U-shaped seat; 711. cross rod; 712. second U-shaped seat. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] like Figure 1-Figure 5The present embodiment shows a stamping die for an automobile chassis bracket, comprising a base 1, a through hole 2 being provided through the middle of the base 1, a fixing frame 4 being fixedly connected to the top surface of the base 1, and slide grooves 8 being provided on both sides of the top of the fixing frame 4, and two hydraulic presses 5 being installed on the top surface of the fixing frame 4, and the telescopic ends of the hydraulic presses 5 are slidably connected with the fixing frame 4, and an anti-jamming mechanism 6 is installed at the through end of the hydraulic presses 5, and the anti-jamming mechanism 6 comprises a movable frame 61, and both ends of the movable frame 61 are located in the slide groove 8, and the fixed frame 4 limits the movable frame 61, and a servo motor 62 is installed at the center of the top surface of the movable frame 61, and the output end of the servo motor 62 is rotatably connected with the movable frame 61, and the through end of the servo motor 62 is fixedly connected with an L-shaped rotating plate 63. Before stamping, the maximum angle between the L-shaped rotating plate 63 and the connecting frame 64 is set, and the connecting frame 64 is in a tilted state. At the same time, the annular plate 65 is also in a tilted state, thereby making the connecting block 66 and its bottom assembly in a vertical state, prompting the upper mold 611 to be aligned with the lower mold The tools 78 are located in the same straight line to facilitate the stamping of the finished product. During the stamping process, the mobile frame 61 moves downward, and the force is applied to the limit rods 68 on both sides of the connecting block 66. In addition, the top of the connecting frame 64 is connected to the L-shaped rotating plate 63, and the L-shaped rotating plate 63 is connected to the mobile frame 61. When the mobile frame 61 moves, the L-shaped rotating plate 63 moves synchronously, and the L-shaped rotating plate 63 will transfer the force to the connecting frame 64, and then transfer the force to the fixed rods 67 on both sides of the connecting block 66, so as to achieve Force is applied simultaneously in four directions of the connecting block 66. Since the maximum angle between the L-shaped rotating plate 63 and the connecting frame 64 is set, a dead point is formed between the L-shaped rotating plate 63 and the connecting frame 64 at this time. Only by applying horizontal force to the L-shaped rotating plate 63 can the L-shaped rotating plate 63 and the connecting frame 64 generate relative rotation again, so that the upper mold 611 can always maintain a vertical state and move downward during the stamping work. The other end of the L-shaped rotating plate 63 is universally connected to the connecting frame 64.

[0033] like Figure 2-Figure 6As shown, the connecting frame 64 is arranged in a U-shaped structure. The two ends of the connecting frame 64 away from the L-shaped rotating plate 63 are fixedly connected to the annular plate 65. A connecting block 66 is provided between the movable frame 61 and the connecting frame 64. The two sides of the connecting block 66 are fixedly connected to the fixed rods 67, and the other two sides of the connecting block 66 are fixedly connected to the limiting rods 68. The limiting rods 68 limit the movable frame 61. The bottom end surface of the connecting block 66 is fixedly connected to the first spring 610. The other end of the first spring 610 is fixedly connected to the sliding rod 69. The other end of the sliding rod 69 is slidably connected to the connecting block 66. The sliding rod 69 and the first spring 610 are installed with an upper mold 611 at one end away from the connecting block 66. When the mold 611 and the lower mold 78 swing left and right, the upper mold 611 and the lower mold 78 can be kept in a closed state at all times. The stable closure of the mold can reduce the wear caused by vibration or uneven impact force. At the same time, it can avoid accidents caused by loose molds, such as the risk of molds getting stuck or falling off, which helps to ensure operational safety during the production process and protect the safety of workers and equipment. The connecting frame 64 is rotatably connected to the fixed rod 67 at both ends away from the L-shaped rotating plate 63, and the movable frame 61 is rotatably connected to the limit rod 68 at both ends away from the servo motor 62. The two ends of the anti-jamming mechanism 6 are located in the slide groove 8, and the fixed frame 4 limits the anti-jamming mechanism 6.

[0034] like Figure 2-Figure 7As shown, several supporting feet 3 are welded to the bottom surface of the base 1, and an adaptive buffer mechanism 7 is installed at the bottom of the fixing frame 4. The adaptive buffer mechanism 7 includes a fixing plate 71, and a spherical block 72 is universally connected to the middle part of the fixing plate 71. Several fixing columns 75 are fixedly connected to the top surface of the fixing plate 71. Several fixing columns 75 are symmetrically distributed around the circumference, and the other end of the fixing column 75 is fixedly connected to the bottom surface of the base 1. During the stamping process, the buffer mechanism can effectively reduce the direct effect of the impact force on the parts, avoid uneven stress, and thus reduce the deformation of the finished product. For chassis brackets with complex shapes, maintaining buffering can ensure that the finished product has high dimensional accuracy and shape stability, avoid dimensional errors or shape distortions caused by impact, and at the same time, the buffer design helps to smoothly transmit force during the stamping process, avoiding damage caused by severe impact. The vibration or fluctuation can be gradually released by the buffering force, which can improve the smoothness of the stamping process, reduce the vibration of the machine, and thus improve the stability and production efficiency of the equipment. A damping rod 73 is fixedly connected to the top of the spherical block 72, and a second spring 74 is provided on the outside of the damping rod 73. One end of the second spring 74 is fixedly connected to the spherical block 72, and the other end of the second spring 74 is fixedly connected to the damping rod 73. The damping rod 73 and the second spring 74 are located in the through hole 2, which can reduce the friction between the finished product and the mold, and avoid surface scratches or mold damage caused by forcibly pushing out the finished product. By controlling the amplitude and strength of the swing, the wear of the finished product and the damage to the mold can be effectively reduced, thereby extending the service life of the mold. The damping rod 73 is fixedly connected to the first U-shaped seat 710 at one end away from the spherical block 72, and the cross rod 711 is rotatably connected inside the first U-shaped seat 710.

[0035] like Figure 3-Figure 7As shown, the other two ends of the cross rod 711 are rotatably connected to the second U-shaped seat 712, and the second U-shaped seat 712 is fixedly connected to the disc 77 at one end away from the cross rod 711. It can balance the pressure and stress in the mold to avoid damage to the mold parts due to the force acting in a single direction on the finished product. By swinging left and right, the force can be distributed more evenly, reducing fatigue damage to the mold. Since the strong friction and impact between the mold and the finished product are reduced, the wear of the mold is reduced and the service life is extended. The automated swing not only improves production efficiency, but also reduces excessive burden on the mold, ensuring the stability of the mold in long-term use. The extension plate on the outside of 7 limits the spherical end of the spherical rod 76. The end of the spherical rod 76 away from the disc 77 is slidably connected to the base 1. The through end of the spherical rod 76 is fixedly connected to a third spring 79. The other end of the third spring 79 is fixedly connected to the bottom surface of the base 1. A plurality of spherical rods 76 are provided at the bottom of the disc 77. The spherical rods 76 are symmetrically distributed around the circumference. The spherical rods 76 have a spherical structure at one end. This can effectively improve the efficiency of removing finished products during the stamping process, reduce part deformation and mold damage, and improve overall production efficiency and product quality. At the same time, it has good adaptability and can handle automobile chassis brackets of different shapes and structures. For parts with more complex shapes, this design can provide better adaptability, ensuring that the parts can be smoothly ejected without damage. The spherical end of the spherical rod 76 is slidably connected to the bottom surface of the disc 77. An extension plate is provided on the outside of the disc 77, and a lower mold 78 is installed on the top surface of the disc 77.

[0036] The working principle of this embodiment is as follows: the stamping part is placed on the top of the lower mold 78, and the rear hydraulic press 5 is operated to drive the movable frame 61 to slide in the slide groove 8, and the bottom component of the movable frame 61 moves downward synchronously, so that the upper mold 611 and the lower mold 78 are in contact with each other for stamping. During the stamping process, the first spring 610 contracts, and the slide rod 69 and the connecting block 66 slide relative to each other, and the lower mold 78 moves downward to apply force to the several spherical rods 76 at the same time, so that the spherical rods 76 move downward, and the several third springs 79 are stretched. At the same time, the second U-shaped seat 712, the cross rod 711 and the first U-shaped seat 710 at the bottom center of the disc 77 transmit force to the damping rod 73 and the second spring 74, and the damping rod 73 and the second spring 74 contract at the same time, thereby achieving buffering during stamping.

[0037] After the stamping is completed, the servo motor 62 drives the L-shaped rotating plate 63 to rotate, causing the connecting frame 64 to perform an up and down circular swing motion. At the same time, the annular plate 65 moves synchronously with the connecting frame 64, so that the connecting frame 64 and the fixed rod 67 rotate relative to each other, and the movable frame 61 and the limit rod 68 rotate relative to each other, prompting the connecting block 66 to perform a longitudinal left and right circular swing motion in the rotation direction of the connection between the movable frame 61 and the limit rod 68, and the upper mold 611 moves synchronously with the connecting block 66.

[0038] When the upper mold 611 performs a longitudinal left and right circular swinging motion, the first U-shaped seat 710, the cross rod 711 and the second U-shaped seat 712 work together to make the disc 77 deflect in any direction, so that the disc 77 follows the upper mold 611 to perform a longitudinal left and right circular swinging motion. At the same time, the plurality of spherical rods 76 can perform different degrees of up and down telescopic movement under the action of the third spring 79. Moreover, the spherical block 72 and the fixed plate 71 produce relative rotation, and the damping rod 73 and the second spring 74 perform synchronous up and down telescopic movement to adapt to the angular deviation generated when the disc 77 performs a left and right circular swinging motion. The disc 77 can always be supported, thereby effectively separating the finished product from the mold, preventing the occurrence of jamming, and ensuring that each part is smoothly removed.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A stamping die for an automobile chassis bracket, comprising a base (1), characterized in that: A through hole (2) is provided through the middle of the base (1); a fixing frame (4) is fixedly connected to the top surface of the base (1); slide grooves (8) are provided on both sides of the top of the fixing frame (4); two hydraulic presses (5) are installed on the top surface of the fixing frame (4); the telescopic ends of the hydraulic presses (5) are slidably connected to the fixing frame (4); an anti-jamming mechanism (6) is installed at the through end of the hydraulic press (5); both ends of the anti-jamming mechanism (6) are located in the slide grooves (8), and the fixing frame (4) limits the anti-jamming mechanism (6); a plurality of supporting legs (3) are welded to the bottom surface of the base (1); and an adaptive buffer mechanism (7) is installed at the bottom of the fixing frame (4).

2. The stamping die for an automobile chassis bracket according to claim 1, characterized in that: The anti-jamming mechanism (6) comprises a movable frame (61), both ends of the movable frame (61) are located in the slide groove (8), and the fixed frame (4) limits the movable frame (61). A servo motor (62) is installed at the center of the top surface of the movable frame (61), the output end of the servo motor (62) is connected to the movable frame (61) through rotation, and the through end of the servo motor (62) is fixedly connected to an L-shaped rotating plate (63).

3. The stamping die for an automobile chassis bracket according to claim 2, characterized in that: The other end of the L-shaped rotating plate (63) is universally connected to a connecting frame (64), and the connecting frame (64) is arranged in a U-shaped structure. The two ends of the connecting frame (64) away from the L-shaped rotating plate (63) are fixedly connected to an annular plate (65), and a connecting block (66) is provided between the movable frame (61) and the connecting frame (64).

4. The stamping die for an automobile chassis bracket according to claim 3, characterized in that: The two sides of the connecting block (66) are fixedly connected to fixed rods (67), and the other two sides of the connecting block (66) are fixedly connected to limit rods (68). The two ends of the connecting frame (64) away from the L-shaped rotating plate (63) are rotatably connected to the fixed rods (67), and the two ends of the movable frame (61) away from the servo motor (62) are rotatably connected to the limit rods (68).

5. The stamping die for an automobile chassis bracket according to claim 4, characterized in that: The limiting rod (68) limits the movable frame (61), the bottom surface of the connecting block (66) is fixedly connected to a first spring (610), the other end of the first spring (610) is fixedly connected to a sliding rod (69), the other end of the sliding rod (69) is slidably connected to the connecting block (66), and an upper mold (611) is installed at one end of the sliding rod (69) and the first spring (610) away from the connecting block (66).

6. The stamping die for an automobile chassis bracket according to claim 1, characterized in that: The adaptive buffer mechanism (7) comprises a fixed plate (71), a spherical block (72) is universally connected to the middle of the fixed plate (71), a plurality of fixed columns (75) are fixedly connected to the top surface of the fixed plate (71), and the plurality of fixed columns (75) are arranged in a circumferentially symmetrical distribution. The other end of the fixed column (75) is fixedly connected to the bottom surface of the base (1), a damping rod (73) is fixedly connected to the top of the spherical block (72), and a second spring (74) is arranged on the outside of the damping rod (73).

7. The stamping die for an automobile chassis bracket according to claim 6, characterized in that: One end of the second spring (74) is fixedly connected to the spherical block (72), and the other end of the second spring (74) is fixedly connected to the damping rod (73). The damping rod (73) and the second spring (74) are located in the through hole (2), and the end of the damping rod (73) away from the spherical block (72) is fixedly connected to the first U-shaped seat (710).

8. The stamping die for an automobile chassis bracket according to claim 7, characterized in that: The first U-shaped seat (710) is rotatably connected to a cross rod (711) inside, and the other two ends of the cross rod (711) are rotatably connected to a second U-shaped seat (712), and one end of the second U-shaped seat (712) away from the cross rod (711) is fixedly connected to a disc (77), and a lower mold (78) is installed on the top surface of the disc (77).

9. The stamping die for an automobile chassis bracket according to claim 8, characterized in that: A plurality of spherical rods (76) are provided at the bottom of the disc (77), and the plurality of spherical rods (76) are symmetrically distributed around the circumference. One end of the spherical rod (76) is provided with a spherical structure. The spherical end of the spherical rod (76) is slidably connected to the bottom surface of the disc (77), and an extension plate is provided on the outside of the disc (77).

10. The stamping die for an automobile chassis bracket according to claim 9, characterized in that: The extension plate outside the disc (77) limits the spherical end of the spherical rod (76); one end of the spherical rod (76) away from the disc (77) is slidably connected to the base (1); the through end of the spherical rod (76) is fixedly connected to a third spring (79); the other end of the third spring (79) is fixedly connected to the bottom surface of the base (1).

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