A stamping die for an automobile bracket

Abstract

This invention discloses a stamping die for an automotive bracket, specifically relating to the field of stamping. The stamping die includes a lower die and an upper die. The lower die has a through-cavity, inside which a forming component is disposed. The forming component includes a die rod rotatably connected to the lower die. A through-groove is formed in the radial direction of the die rod. A support block is disposed on one side inside the through-groove. The upper surface of the support block and the outer surface of the die rod are both cylindrical. A U-shaped gap is formed on the periphery of the support block, located inside the through-groove. The upper die is used to press the sheet metal downwards, forming a U-shaped structural body and a U-shaped groove on the die rod. The support block is used to press the material surrounded by the U-shaped groove to form an upper folded plate. This invention uses a modular U-shaped block and a die rod to stamp a U-shaped structural body and a U-shaped groove on the die rod. Then, by flipping the die rod and using the support block to stamp a higher folded plate, a car shock absorber bracket is finally formed.

Description

Technical Field

[0001] This invention relates to the field of stamping technology, and more specifically, to a stamping die for an automobile bracket. Background Technology

[0002] Automotive shock absorber brackets are key load-bearing and connecting components of automotive chassis suspension systems. They are widely used in the chassis suspension structures of various vehicle types, including passenger cars and commercial vehicles, playing a crucial role in positioning, load transfer, and shock absorption. The molding precision, structural strength, flatness, and dimensional consistency of the shock absorber bracket directly affect the assembly precision and operational stability of the shock absorber, thus impacting the vehicle's vibration damping effect, driving smoothness, and chassis safety.

[0003] Currently, most automotive shock absorber brackets are manufactured using high-strength metal sheet stamping processes to meet the needs of mass production and standardization of automotive chassis components. Therefore, stamping dies are the core process equipment for shock absorber bracket forming.

[0004] like Figure 10 As shown in ④, the automotive shock absorber bracket has a U-shaped main body and an upper folding plate. Current processing involves first punching out the material around the upper folding plate, then stamping the sheet metal into a U-shape, and finally punching and bending the upper folding plate—a three-step process requiring three independent molds. This method of processing with three independent molds results in fragmented processes and a lengthy workflow. Frequent mold changes, re-clamping and repositioning, and equipment parameter adjustments are required during production, significantly increasing auxiliary production time and drastically reducing the overall production cycle time and efficiency. This approach cannot meet the demands of high-volume, high-efficiency mass production of automotive parts. Summary of the Invention

[0005] The present invention provides a stamping die for an automobile bracket, which aims to solve the problem that the existing automobile shock absorber bracket is processed in three separate steps using three sets of independent dies, resulting in a lengthy process and significantly reducing the overall production cycle and efficiency of the production line.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a stamping die for an automobile bracket, comprising a lower die and an upper die, wherein the lower die has a through-hole cavity, and a forming component is disposed inside the cavity. The forming component includes a die rod rotatably connected to the lower die, and a through-hole groove is formed in the radial direction of the die rod. A support block is disposed on one side inside the through-hole groove. The upper surface of the support block and the outer surface of the die rod are both cylindrical surfaces. A U-shaped gap is formed on the periphery of the support block and located inside the through-hole groove. The upper die is used to stamp the sheet metal downward, so that the sheet metal forms a U-shaped structure body and a U-shaped groove on the die rod. The support block is used to stamp the material surrounded by the U-shaped groove to form an upper folded plate.

[0007] Preferably, the upper mold includes an upper template, a module is fixedly installed at the bottom of the upper template, the bottom of the module is a concave arc structure, a U-shaped block is vertically slidably installed inside the module, and a drive rod is fixedly installed at the top of the U-shaped block.

[0008] Preferably, a fixing block is fixedly installed on one side inside the through groove, a support block is supported on the upper end of the fixing block, a movable rod is vertically movably arranged inside the fixing block, the upper end of the movable rod is fixedly connected to the support block, a pressure rod is fixedly installed on the lower end of the movable rod, and a spring is sleeved on the outside of the movable rod. The spring is used to reset the support block towards the middle of the through groove.

[0009] Preferably, the distance between the two ends of the pressure bar is greater than the length of the through groove.

[0010] Preferably, the lower mold is provided with a positioning component, which includes a slide rod slidably disposed on one side of the lower mold. The end of the slide rod near the mold rod has a vertical plane, and the upper side of the plane has an arc-shaped limiting surface, which is used to fit against the arc-shaped surface of the U-shaped structure body.

[0011] Preferably, the positioning assembly further includes a rocker arm fixedly installed at one end of the mold rod, a fixing rod fixedly installed at the end of the slide rod away from the middle of the lower mold, and a connecting rod hinged between the rocker arm and the fixing rod.

[0012] Preferably, both ends of the upper side of the mold rod are provided with sliding grooves, and a clamping block is slidably installed inside the sliding groove. A second spring is also provided inside the sliding groove. The second spring is used to reset the clamping block towards the through groove. The end of the clamping block near the through groove has an inclined surface.

[0013] Preferably, a stripping assembly is provided on one side of the lower mold. The stripping assembly includes a push rod located on the upper side of the slide bar and movably inserted into the side wall of the lower mold. A push plate is fixedly installed at one end of the push rod inside the mold cavity.

[0014] Preferably, support components are installed on both sides of the upper end of the lower mold. The support components include a fixed plate that is fixedly connected to the inner wall of the mold cavity. The end of the fixed plate near the middle of the mold cavity is rotatably connected to the support plate through a torsion spring. The torsion spring is used to rotate the support plate upward and reset it.

[0015] Preferably, guide rods are fixedly installed around the lower mold, and the upper mold is sleeved on the guide rods along the axial direction of the guide rods.

[0016] The technical effects and advantages of this invention are as follows: This invention uses a modular U-shaped block and a mold rod to stamp a U-shaped structure body and a U-shaped groove on the mold rod. Then, by flipping the mold rod, a support block is used to stamp an upper folded plate, and finally, a car shock absorber bracket is stamped. Through the structural design of this mold, the stamping of the car shock absorber bracket only requires the design of one mold, eliminating the need for multiple clamping and positioning, shortening the process flow, improving production efficiency, and adapting to the production cycle of large batches.

[0017] This invention, by positioning the support block and the plane on opposite sides of the upper folding plate and utilizing the limiting effect of the plane, allows the support block to maintain a flat plate shape after stamping. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure installed on the lower mold of the present invention.

[0020] Figure 3 This is a partial structural diagram of the present invention. Figure 1 .

[0021] Figure 4 This is a partial structural diagram of the present invention. Figure 2 .

[0022] Figure 5 This is a schematic diagram of the structure of the molding component of the present invention.

[0023] Figure 6 This is an exploded view of the molding component of the present invention.

[0024] Figure 7 This is a cross-sectional view of the molding component of the present invention.

[0025] Figure 8 This is a schematic diagram of the structure of the mold of the present invention.

[0026] Figure 9 This is a cross-sectional view of the mold of the present invention.

[0027] Figure 10 This is a schematic diagram of the stamping process of the automotive shock absorber bracket of the present invention.

[0028] The attached figures are labeled as follows: 1. Lower mold; 10. Guide rod; 11. Mold cavity; 2. Upper mold; 21. Upper template; 22. Module; 23. U-shaped block; 24. Drive rod one; 3. Molding component; 30. U-shaped gap; 31. Mold rod; 311. Through groove; 312. Fixed block; 313. Slide groove; 32. Support block; 33. Movable rod; 34. Spring one; 35. Pressure rod; 36. Clamping block; 37. Spring two; 4. Positioning component; 41. Slide rod; 42. Plane; 43. Arc-shaped limiting surface; 44. Rocker arm; 45. Fixed rod; 46. Connecting rod; 5. Stripping component; 51. Push plate; 52. Push rod; 6. Support component; 61. Fixed plate; 62. Support plate; 7. Sheet material; 71. U-shaped structure main body; 72. U-shaped groove; 73. Upper folding plate. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Refer to the instruction manual appendix Figures 1-2 A stamping die for an automobile bracket includes a lower die 1 and an upper die 2. Guide rods 10 are fixedly installed around the lower die 1, and the upper die 2 is sleeved on the guide rods 10 along the axial direction of the guide rods 10.

[0031] It should be noted that when using this stamping die, first install it on the equipment. Specifically, fix the lower die 1 on the stamping equipment and fix the upper end of the upper die 2 to the output end of the hydraulic cylinder 1 of the equipment. The hydraulic cylinder will then drive the upper die 2 to move vertically, thus realizing the stamping process.

[0032] In this embodiment, as Figures 2-7 As shown, the lower mold 1 has a through mold cavity 11, and a forming component 3 is arranged inside the mold cavity 11. The forming component 3 includes a mold rod 31 rotatably connected to the lower mold 1. A through groove 311 is opened in the radial direction of the mold rod 31. A support block 32 is arranged on one side inside the through groove 311. The upper surface of the support block 32 and the outer surface of the mold rod 31 are both cylindrical surfaces. A U-shaped gap 30 is provided on the periphery of the support block 32 and located inside the through groove 311. The upper mold 2 is used to press the sheet metal 7 downward, so that the sheet metal 7 forms a U-shaped structure body 71 and a U-shaped groove 72 on the mold rod 31. The support block 32 is used to press the material surrounded by the U-shaped groove 72 to form an upper folded plate 73.

[0033] In the above technical solution, specifically, such as Figures 8-9As shown, the upper mold 2 includes an upper template 21, a module 22 is fixedly installed at the bottom of the upper template 21, the bottom of the module 22 is a concave arc structure, a U-shaped block 23 is vertically slidably installed inside the module 22, and a drive rod 24 is fixedly installed at the top of the U-shaped block 23.

[0034] It should be noted that the upper end of the drive rod 24 is connected to the hydraulic cylinder 2. Specifically, during stamping, the sheet metal 7 is first placed above the die rod 31, and the initial state of the sheet metal 7 is as follows: Figure 10 As shown in ①. Then, the hydraulic cylinder drives the upper mold 2 to move downwards. First, the module 22 moves downwards and contacts the sheet metal 7. As it continues to move downwards, the concave arc-shaped structure at the bottom of the module 22 will cooperate with the cylindrical surface of the mold rod 31 and the support block 32, thereby stamping the sheet metal 7 into a U-shaped main body 71. At this time, as shown in ①. Figure 10 As shown in ②. After the main body 71 of the U-shaped structure is formed, the second hydraulic cylinder drives the U-shaped block 23 and the first drive rod 24 to move downwards. The U-shaped block 23 extends out from the module 22 and punches the material at the position of the U-shaped gap 30, thereby forming the U-shaped groove 72. At this time, as shown in ②. Figure 10 As shown in ③. One end of the mold rod 31 is connected to the motor output shaft. The motor drives the mold rod 31 to rotate 180°. At this time, the U-shaped structure body 71 can be rotated 180° so that the opening of the U-shaped structure body 71 is rotated to the upward position. Then the support block 32 moves downward, which can press the material surrounded by the U-shaped groove 72 downward to form the upper folded plate 73. At this time, as shown in ③. Figure 10 As shown in ④.

[0035] The above technical solution uses the U-shaped block 23 of module 22 and the mold rod 31 to stamp a U-shaped structure body 71 and a U-shaped groove 72 on the mold rod 31. Then, by flipping the mold rod 31, the upper folding plate 73 is stamped using the support block 32. Finally, the automotive shock absorber bracket is stamped. Through the structural design of this mold, the stamping of the automotive shock absorber bracket only requires the design of one mold, without the need for multiple clamping and positioning, which shortens the process flow, improves production efficiency, and adapts to the production cycle of large batches.

[0036] Furthermore, such as Figures 5-7 A fixing block 312 is fixedly installed on one side inside the through groove 311. A support block 32 is supported on the upper end of the fixing block 312. A movable rod 33 is vertically movably arranged inside the fixing block 312. The upper end of the movable rod 33 is fixedly connected to the support block 32. A pressure rod 35 is fixedly installed on the lower end of the movable rod 33. A spring 34 is sleeved on the outside of the movable rod 33. The spring 34 is used to reset the support block 32 toward the middle of the through groove 311.

[0037] It should be noted that during the initial stamping process, spring 34 and pressure rod 35 are located below the die rod 31. After the U-shaped structure body 71 and U-shaped groove 72 are formed by stamping through module 22 and U-shaped block 23, and after the upper die 2 is reset, the motor drives the die rod 31 to rotate 180°, so that spring 34 and pressure rod 35 are in the upward position. At this time, the upper die 2 is moved downward by hydraulic cylinder 1. When it moves to a position close to the U-shaped structure body 71, the drive rod 24 and U-shaped block 23 are moved downward by hydraulic cylinder 2. The U-shaped block 23 contacts the pressure rod 35 and pushes the pressure rod 35 downward. Thus, the pressure rod 35 drives the support block 32 downward through the movable rod 33. The side wall edge of the support block 32 pushes the material surrounded by the U-shaped groove 72, thereby forming the upper folded plate 73.

[0038] Furthermore, such as Figures 5-6 The distance between the two ends of the pressure rod 35 is greater than the length of the through groove 311.

[0039] It should be noted that since the U-shaped block 23 is responsible for punching out the material at the position of the U-shaped gap 30, the length of the cross section of the U-shaped block 23 needs to be equal to the length of the through groove 311. When the U-shaped block 23 moves downward to push the pressure rod 35, it needs to contact the pressure rod 35. Therefore, the distance between the two ends of the pressure rod 35 needs to be greater than the length of the through groove 311 so that the U-shaped block 23 can stably push the pressure rod 35 downward.

[0040] Refer to the instruction manual appendix Figures 1-4 After the stamping of module 22 and U-shaped block 23 is completed, a shape is formed as shown in the figure. Figure 10 The structure shown in ③ is an arc-shaped structure surrounded by the U-shaped groove 72. When the upper folded plate 73 is formed by stamping it with the support block 32, the upper folded plate 73 is an arc-shaped structure. In order to enable the upper folded plate 73 to form a flat plate structure, the following technical solution is further proposed.

[0041] Specifically, a positioning component 4 is provided on the lower mold 1. The positioning component 4 includes a slide rod 41 that is slidably disposed on one side of the lower mold 1. The end of the slide rod 41 near the mold rod 31 has a vertical plane 42. An arc-shaped limiting surface 43 is located on the upper side of the plane 42. The arc-shaped limiting surface 43 is used to fit against the arc-shaped surface of the U-shaped structure body 71.

[0042] It should be noted that after the mold rod 31 rotates 180°, the slide rod 41 moves towards the center of the lower mold 1, so that the arc-shaped limiting surface 43 fits against the arc-shaped surface of the U-shaped structure body 71, while the plane 42 is located at the position where the structure surrounded by the U-shaped groove 72 will be stamped and bent. When the support block 32 moves to stamp it to form the upper folded plate 73, the support block 32 is located on one side of the upper folded plate 73 and its edge is in contact with the upper folded plate 73. As the support block 32 is stamped, the plane 42 is in continuous contact with the other side of the support block 32. That is, the support block 32 and the plane 42 are located on both sides of the upper folded plate 73 respectively. Through the limiting effect of the plane 42, the support block 32 can maintain a flat plate structure after stamping.

[0043] Furthermore, the positioning assembly 4 also includes a rocker arm 44 fixedly installed at one end of the mold rod 31, a fixing rod 45 fixedly installed at the end of the slide rod 41 away from the middle of the lower mold 1, and a connecting rod 46 hinged between the rocker arm 44 and the fixing rod 45.

[0044] It should be noted that the two ends of the connecting rod 46 are hinged to the rocker arm 44 and the fixed rod 45 respectively. When the mold rod 31 rotates 180°, the rocker arm 44, the connecting rod 46 and the fixed rod 45 can drive the slide rod 41 to move to the designated position in the direction of the middle of the mold 1.

[0045] Refer to the instruction manual appendix Figures 5-7 After the module 22 and the U-shaped block 23 are stamped to form the U-shaped structure body 71, the die rod 31 needs to rotate 180°. Before the rotation, the module 22 needs to move upward to detach from the U-shaped structure body 71. Therefore, in order to prevent the U-shaped structure body 71 from falling off the die rod 31 during the rotation process, and also to prevent the module 22 from pulling the U-shaped structure body 71 upward from the die rod 31 during the upward movement, the following technical solution is proposed.

[0046] Specifically, both ends of the upper side of the mold rod 31 are provided with sliding grooves 313. A clamping block 36 is slidably installed inside the sliding groove 313. A second spring 37 is also provided inside the sliding groove 313. The second spring 37 is used to reset the clamping block 36 towards the through groove 311. The end of the clamping block 36 near the through groove 311 has an inclined surface.

[0047] It should be noted that when module 22 presses down on sheet metal 7, sheet metal 7 moves along the inclined plane between two clamping blocks 36. Spring 2 37 applies elastic force to clamping blocks 36, thereby clamping the edges on both sides of sheet metal 7. This can prevent module 22 from moving upward and pulling sheet metal 7 off the die rod 31, and can also prevent U-shaped groove 72 from falling off the die rod 31 when the die rod 31 rotates and the opening of U-shaped groove 72 faces upward.

[0048] Furthermore, a stripping assembly 5 is provided on one side of the lower mold 1. The stripping assembly 5 includes a push rod 52 located on the upper side of the slide bar 41 and movably inserted into the side wall of the lower mold 1. A push plate 51 is fixedly installed at one end of the push rod 52 inside the mold cavity 11.

[0049] It should be noted that after the car shock absorber bracket is stamped, the die rod 31 is rotated 90° so that the opening of the car shock absorber bracket faces the push plate 51. The push rod 52 is connected to the output end of the cylinder. The cylinder drives the push rod 52 and the push plate 51 to move towards the middle of the mold 1, so that the push rod 52 contacts the end of the car shock absorber bracket, thereby pushing the car shock absorber bracket away from the die rod 31 to achieve the purpose of unloading.

[0050] Refer to the instruction manual appendix Figures 5-7 Since the die rod 31 is not convenient to support the sheet 7 during the feeding process, the following technical solution is proposed.

[0051] Specifically, support components 6 are installed on both sides of the upper end of the lower mold 1. The support components 6 include a fixing plate 61 fixedly connected to the inner wall of the mold cavity 11. The end of the fixing plate 61 near the middle of the mold cavity 11 is rotatably connected to a support plate 62 through a torsion spring. The torsion spring is used to rotate the support plate 62 upward and reset it.

[0052] It should be noted that when placing the sheet metal 7, both ends of the sheet metal 7 can be supported on the support plates 62 of the two support components 6. Under normal conditions, the support plates 62 are horizontal. When the module 22 moves downward to perform stamping, under the action of pressure, the ends of the sheet metal 7 can push the support plates 62 downward, causing the support plates 62 to swing downward until the ends of the sheet metal 7 are separated from the support plates 62. Then, the support plates 62 are reset under the action of the torsion spring.

[0053] Working principle: In use, first, the lower mold 1 is fixedly installed on the stamping equipment, the upper mold plate 21 is connected to the output end of the first hydraulic cylinder, the first drive rod 24 is connected to the output end of the second hydraulic cylinder, one end of the mold rod 31 is connected to the output shaft of the motor, and the push rod 52 is connected to the output end of the cylinder.

[0054] During stamping, the sheet metal 7 is first placed on two support components 6, specifically, the two ends of the sheet metal 7 are supported on support plates 62.

[0055] Then, hydraulic cylinder one drives the upper template 21 to move downwards. Module 22 moves downwards and first contacts the sheet metal 7, pressing it downwards. Under pressure, the end of the sheet metal 7 can push the support plate 62 downwards, causing the support plate 62 to swing downwards until the end of the sheet metal 7 disengages from the support plate 62. Module 22 then pushes the sheet metal 7 along the inclined surface of the clamping block 36 between the two clamping blocks 36, clamping the sheet metal 7. The concave arc-shaped structure at the bottom of module 22 then engages with the cylindrical surfaces of the die rod 31 and the support block 32, thus stamping the sheet metal 7 to form a U-shaped main body 71. Hydraulic cylinder two then drives the U-shaped block 23 and drive rod 24 downwards. The U-shaped block 23 extends from inside module 22, punching the material at the U-shaped gap 30 position to form a U-shaped groove 72.

[0056] Secondly, the hydraulic cylinder drives the upper template 21 to move upward, causing the module 22 and U-shaped block 23 to disengage from the U-shaped structure body 71. The motor drives the mold rod 31 to rotate 180°, so that the spring 34 and pressure rod 35 are in the upward position, and at this time the opening of the U-shaped structure body 71 is also facing upward. During the rotation of the mold rod 31, the mold rod 31 can drive the sliding rod 41 to move towards the middle of the lower mold 1 through the rocker arm 44, connecting rod 46 and fixing rod 45, so that the arc-shaped limiting surface 43 fits against the arc surface of the U-shaped structure body 71, while the plane 42 is located at the position where the structure surrounded by the U-shaped groove 72 will be punched and bent.

[0057] Then, the upper mold 2 is moved downward by the first hydraulic cylinder. When it moves close to the U-shaped structure body 71, the second hydraulic cylinder drives the drive rod 24 and the U-shaped block 23 to move downward. The U-shaped block 23 contacts the pressure rod 35 and pushes the pressure rod 35 downward. The pressure rod 35 drives the support block 32 to move downward through the movable rod 33 for stamping. The side wall edge of the support block 32 pushes the material surrounded by the U-shaped groove 72 to form the upper folded plate 73. The support block 32 and the plane 42 are located on both sides of the upper folded plate 73 and play a limiting role, so that the support block 32 can maintain the flat plate structure after stamping.

[0058] Finally, the hydraulic cylinder drives the upper mold 2 to reset, and the motor drives the mold rod 31 to rotate another 90°, so that the opening of the car shock absorber bracket faces the push plate 51. The cylinder drives the push rod 52 and the push plate 51 to move, pushing the car shock absorber bracket away from the mold rod 31, thus achieving the purpose of unloading. It should be noted that during the stamping process, the material punched out by the U-shaped block 23 and the final product are both unloaded from the bottom of the mold cavity 11.

[0059] Compared to traditional processes that require three independent molds for step-by-step stamping and multiple workpiece transfers, repeated clamping, positioning, and debugging, this mold integrates multiple dispersed processes into a single mold for continuous completion. This eliminates the need for multiple mold changes, repeated workpiece positioning, and repeated equipment adjustments, significantly reducing the overall process length. The entire forming process eliminates the need for disassembling or transferring workpieces midway, improving part forming accuracy and dimensional consistency. The entire mold is compatible with automated stamping production lines for continuous operation, significantly accelerating the production cycle of individual products and greatly improving the mass production efficiency of chassis vibration damping brackets. It fully meets the demands of modern, large-scale, high-efficiency, and high-precision manufacturing of automotive parts.

[0060] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stamping die for an automobile bracket, characterized in that: The assembly includes a lower mold (1) and an upper mold (2). The lower mold (1) has a through cavity (11). A forming component (3) is provided inside the cavity (11). The forming component (3) includes a mold rod (31) rotatably connected to the lower mold (1). A through groove (311) is provided in the radial direction of the mold rod (31). A support block (32) is provided on one side inside the through groove (311). The upper surface of the support block (32) and the outer surface of the mold rod (31) are both cylindrical surfaces. A U-shaped gap (30) is provided on the periphery of the support block (32) and inside the through groove (311). The upper mold (2) is used to press the sheet metal (7) downwards, so that the sheet metal (7) forms a U-shaped structure body (71) and a U-shaped groove (72) on the mold rod (31). The support block (32) is used to press the material surrounded by the U-shaped groove (72) to form an upper folded plate (73).

2. The automobile bracket stamping die according to claim 1, characterized in that: The upper mold (2) includes an upper template (21), and a module (22) is fixedly installed at the bottom of the upper template (21). The bottom of the module (22) is a concave arc structure. A U-shaped block (23) is vertically slidably installed inside the module (22), and a drive rod (24) is fixedly installed at the top of the U-shaped block (23).

3. The automobile bracket stamping die according to claim 1, characterized in that: A fixing block (312) is fixedly installed on one side inside the through groove (311). The support block (32) is supported on the upper end of the fixing block (312). A movable rod (33) is vertically movably arranged inside the fixing block (312). The upper end of the movable rod (33) is fixedly connected to the support block (32). A pressure rod (35) is fixedly installed on the lower end of the movable rod (33). A spring (34) is sleeved on the outside of the movable rod (33). The spring (34) is used to reset the support block (32) towards the middle of the through groove (311).

4. The automobile bracket stamping die according to claim 3, characterized in that: The distance between the two ends of the pressure bar (35) is greater than the length of the through groove (311).

5. The automobile bracket stamping die according to claim 4, characterized in that: The lower mold (1) is provided with a positioning component (4), which includes a slide rod (41) slidably disposed on one side of the lower mold (1). The slide rod (41) has a vertical plane (42) at one end near the mold rod (31), and an arc-shaped limiting surface (43) is provided on the upper side of the plane (42). The arc-shaped limiting surface (43) is used to fit against the arc surface of the U-shaped structure body (71).

6. The automobile bracket stamping die according to claim 5, characterized in that: The positioning component (4) also includes a rocker arm (44) fixedly installed at one end of the mold rod (31), and a fixing rod (45) is fixedly installed at one end of the slide rod (41) away from the middle of the lower mold (1). A connecting rod (46) is hinged between the rocker arm (44) and the fixing rod (45).

7. The automobile bracket stamping die according to claim 1, characterized in that: Both ends of the upper side of the mold rod (31) are provided with sliding grooves (313). A clamping block (36) is slidably installed inside the sliding groove (313). A second spring (37) is also provided inside the sliding groove (313). The second spring (37) is used to reset the clamping block (36) towards the through groove (311). The end of the clamping block (36) near the through groove (311) has an inclined surface.

8. The automobile bracket stamping die according to claim 5, characterized in that: A stripping assembly (5) is provided on one side of the lower mold (1). The stripping assembly (5) includes a push rod (52) located on the upper side of the slide rod (41) and movably inserted into the side wall of the lower mold (1). A push plate (51) is fixedly installed at one end of the push rod (52) inside the mold cavity (11).

9. The automobile bracket stamping die according to claim 1, characterized in that: Support components (6) are installed on both sides of the upper end of the lower mold (1). The support components (6) include a fixed plate (61) fixedly connected to the inner wall of the mold cavity (11). The fixed plate (61) near the middle of the mold cavity (11) is rotatably connected to a support plate (62) by a torsion spring. The torsion spring is used to rotate the support plate (62) upward and reset it.

10. A stamping die for an automobile bracket according to claim 1, characterized in that: Guide rods (10) are fixedly installed around the lower mold (1), and the upper mold (2) is sleeved on the guide rods (10) along the axial direction of the guide rods (10).

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