A structural part stamping die and an assembled structural part stamping process

Abstract

The application relates to the technical field of intelligent manufacturing equipment industry, and discloses a structural part stamping die and a fabricated structural part stamping process, which comprise a mounting seat, a supporting arm, a lower die seat, an upper die seat and a punch press, the supporting arm is fixedly installed at the upper end of the mounting seat, lower rotating shafts are fixedly installed at the two ends of the lower die seat, and the lower rotating shafts are rotationally connected with the mounting seat; the structural part stamping die is designed to be rotatable through the upper die seat and the lower die seat, and is matched with a mobile rotation assembly and a driven rotation assembly, so that the effect of a rotary alternate stamping station is achieved, the problem that a traditional die is overheated due to single fixed station continuous stamping is effectively avoided, the risk of thermal expansion deformation, hardness reduction and thermal fatigue cracks of the die due to high temperature is reduced, the innovative design conforms to the trend of the intelligent manufacturing equipment industry towards automation and intelligentization, and helps to improve the overall competitiveness and innovation vitality of the intelligent manufacturing equipment industry.

Description

Technical Field

[0001] This invention relates to the field of intelligent manufacturing equipment industry technology, specifically to a structural component stamping die and a stamping process for assembled structural components. Background Technology

[0002] Structural components refer to key parts used in fields such as construction, machinery, automobiles, and aerospace to bear loads, transmit forces, or maintain the overall structural form. In the field of stamping dies, structural component stamping is the process of stamping metal sheets and other materials with dies to manufacture functional parts. In the continuous stamping process of traditional stamping dies, a large amount of heat is generated due to the continuous friction and plastic deformation between the die and the workpiece, which causes the die temperature to rise sharply.

[0003] Chinese patent CN222307072U discloses a hardware stamping die with a flipping function, which realizes automatic material feeding through the automatic flipping function of the lower die, thereby improving the material feeding efficiency.

[0004] When the aforementioned stamping die is continuously stamping at a single fixed station, the die plate is constantly in a high-temperature state, which can easily cause thermal expansion and deformation of the die material, decrease in hardness, and even thermal fatigue cracks, resulting in a significant reduction in the die's service life. In order to avoid overheating of the die, it is often necessary to frequently stop the machine for cooling or add additional complex cooling devices, which leads to reduced production efficiency and increased production costs. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a structural component stamping die and an assembly-type structural component stamping process, which effectively enhances heat dissipation during the stamping process, thus solving the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0009] A structural component stamping die includes a mounting base, a support arm, a lower die base, an upper die base, and a stamping machine. The support arm is fixedly mounted on the upper end of the mounting base. Both ends of the lower die base are fixedly mounted with lower rotating shafts, which are rotatably connected to the mounting base. Both ends of the upper die base are fixedly mounted with upper rotating shafts. A stamping frame is rotatably mounted on the upper rotating shafts, and the upper rotating shafts can slide vertically on the support arm and rotate. The side of the support arm is provided with a movable rotating component and a driven rotating component. The movable rotating component is used to rotate and flip the upper die base after it moves upward and separates from the lower die base, and then continue to move upward after flipping. The upper die base does not rotate when it moves downward. The driven rotating component is used to rotate and flip the lower die base synchronously when the upper die base rotates and flips.

[0010] Both ends of the lower mold base are fixedly installed with a lower template, and both ends of the upper mold base are fixedly installed with an upper template. The lower template and the upper template are compatible.

[0011] The press is fixedly equipped with a worktable and a hydraulic punch. The worktable is fixedly connected to the bottom of the mounting base, and the drive end of the hydraulic punch is fixedly connected to the press frame.

[0012] Preferably, the movable rotating assembly includes a gear, a driven disk, a rack, and a limiting ring. The upper rotating shaft is fixedly installed on the side wall of the upper mold base. The gear and the driven disk are both fixedly installed on the upper rotating shaft, and the rack and the limiting ring are both slidably installed on the support arm. When the upper rotating shaft moves downward, the limiting ring engages with the driven disk, and the gear pushes the rack to slide laterally out of position. When the upper rotating shaft moves upward, the driven disk rotates inside the limiting ring, and the gear meshes with the rack for transmission.

[0013] Preferably, the driven disc is rotatably sleeved on the inner side of the limiting ring, and a sliding groove is provided on the edge of the driven disc. An insert block is slidably installed inside the sliding groove. A limiting groove is provided on the inner side wall of the limiting ring. A slope surface is provided at one end of the limiting groove, and the limiting groove is adapted to be inserted into the insert block. A spring groove is provided inside the sliding groove, and a return spring is provided inside the spring groove. The two ends of the return spring are fixedly connected to the insert block and the spring groove, respectively.

[0014] Preferably, the rack includes a guide rod and teeth, the teeth being arranged in a linear array in the middle of one side wall of the guide rod, a transverse sliding hole being provided on the support arm, a guide slider being fixedly installed on one side wall of the guide rod, the guide slider being slidably installed inside the transverse sliding hole, and a support spring being provided between the support arm and the guide rod, the two ends of the support spring being fixedly connected to the support arm and the guide rod respectively.

[0015] Preferably, the support arm has a vertical sliding hole, a connecting rod is fixedly installed on the limiting ring, a guide slide rod is fixedly installed on the connecting rod, the guide slide rod is slidably connected to the vertical sliding hole, a support frame is rotatably installed on the upper rotating shaft, and support sliders are fixedly installed at both ends of the support frame, the support sliders are slidably connected to the vertical sliding hole.

[0016] Preferably, the driven rotating assembly includes a lower rotating plate, an upper rotating plate, and an intermediate shaft. The intermediate shaft is rotatably connected to both the lower rotating plate and the upper rotating plate. The lower rotating plate is rotatably connected to the lower rotating shaft, and the upper rotating plate is rotatably connected to the upper rotating shaft. The lower rotating shaft is driven by the intermediate shaft through a transmission pulley, and the upper rotating shaft is driven by the intermediate shaft through a transmission pulley.

[0017] Preferably, the side of the support arm is further provided with a guide assembly, which includes an upper guide groove, a lower guide groove, and a guide block. The upper guide groove and the lower guide groove are respectively fixedly installed at the upper and lower ends of the support arm, and the groove openings of the upper guide groove and the lower guide groove are opposite to each other. The guide block includes a square block and an arc block. The square block is fixedly installed on the upper rotating shaft, and the center of the square block coincides with the axis of the upper rotating shaft. The arc block is fixedly installed at both ends of the square block, and the two side walls of the square block slide against the inner side walls of the upper guide groove and the lower guide groove.

[0018] Preferably, guide posts are fixedly installed on both the upper and lower surfaces of the upper mold base, and guide tubes are fixedly installed on both the upper and lower surfaces of the lower mold base. The guide tubes are adapted to be inserted into the guide posts. A pyramidal column is provided at the end of the guide post away from the upper mold base. A buffer spring and a washer are provided inside the guide tube. The two ends of the buffer spring are fixedly connected to the lower mold base and the washer, respectively.

[0019] Preferably, the mounting base has a through-hole in the middle, and the through-hole communicates with the interior of the mounting base.

[0020] This invention also discloses a stamping process for assembled structural parts, the specific steps of which are as follows:

[0021] The mounting base is fixedly installed on the workbench, and the stamping frame is fixedly installed on the drive end of the hydraulic punch.

[0022] The structural component is placed on the lower die plate located above the lower die base. The hydraulic punch drives the stamping frame, which in turn moves the upper rotating shaft and the upper die base downward, so that the upper die plate and the lower die plate cooperate to complete the stamping.

[0023] After stamping is completed, the hydraulic punch drives the upper die holder to move upward and separate from the lower die holder. After the upper die holder and the lower die holder are separated, the moving self-rotating component is started, which drives the upper die holder to rotate and flip. The driven rotating component operates synchronously, so that the lower die holder and the upper die holder are rotated 180° at the same time. During the process, the structural parts fall into the interior of the mounting base.

[0024] After the mold is flipped, the structural part to be stamped is placed on the lower template above the lower mold base. The hydraulic punch then drives the upper mold base to move downward to stamp the structural part.

[0025] (III) Beneficial Effects

[0026] Compared with the prior art, the present invention provides a structural component stamping die and a stamping process for assembled structural components, which has the following beneficial effects:

[0027] 1. This structural component stamping die, through its rotatable upper and lower die bases, combined with a movable self-rotating component and a driven rotating component, achieves the effect of alternating rotating stamping stations. This effectively avoids the problem of die overheating caused by continuous stamping at a single fixed station in traditional dies, reducing the risk of thermal expansion deformation, decreased hardness, and thermal fatigue cracks caused by high temperatures, and significantly extending the die's service life. After stamping, the upper and lower die bases rotate and flip synchronously, allowing the structural component to fall off automatically without manual removal, reducing the cost of manual operation. This innovative design conforms to the trend of intelligent manufacturing equipment industry transforming towards automation and intelligence, and helps to enhance the overall competitiveness and innovation vitality of the intelligent manufacturing equipment industry.

[0028] 2. This structural stamping die, through the setting of gears, driven discs, racks, and limit rings, precisely controls the movement and rotation of the upper die holder, ensuring that the upper die holder remains stable and does not rotate when moving downwards for stamping. After the upper die holder moves upwards and separates from the lower die holder, it automatically completes rotation and flipping, effectively improving the reliability and stability of the die operation, ensuring the continuity of stamping production and product quality. At the same time, by setting a lower rotating plate, an upper rotating plate, and an intermediate shaft, the lower die holder rotates synchronously with the upper die holder, so that the lower die holder flips when the upper die holder flips, resulting in a longer interval between the use of the upper and lower die plates, which allows for better cooling.

[0029] 3. The stamping die of this structural component provides precise guidance for the relative movement of the upper and lower die bases by setting the upper and lower guide grooves of the guide assembly to slide and fit with the guide block, as well as the matching and plugging of the guide post and the guide tube. At the same time, the setting of buffer springs and shims can effectively buffer the impact force during the stamping process, reduce die wear, and improve the accuracy and durability of the die. Attached Figure Description

[0030] Figure 1 This is one of the three-dimensional structural schematic diagrams of the stamping die for the structural component of the present invention;

[0031] Figure 2 This is a second three-dimensional structural schematic diagram of the stamping die for the structural component of the present invention;

[0032] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of a local structure at point A;

[0033] Figure 4 This is the third three-dimensional structural schematic diagram of the stamping die for the structural component of the present invention;

[0034] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the local structure at point B;

[0035] Figure 6 This is the fourth three-dimensional structural schematic diagram of the stamping die for the structural component of the present invention;

[0036] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the local structure at point C;

[0037] Figure 8 For the present invention Figure 6 Enlarged schematic diagram of the local structure at point D;

[0038] Figure 9 This is the fifth three-dimensional structural schematic diagram of the stamping die for the structural component of the present invention;

[0039] Figure 10 This is the sixth three-dimensional structural schematic diagram of the stamping die for the structural component of the present invention;

[0040] Figure 11 For the present invention Figure 10 A magnified view of the local structure at point E in the middle;

[0041] Figure 12 This is the seventh three-dimensional structural schematic diagram of the stamping die for the structural component of the present invention;

[0042] Figure 13 This is the eighth three-dimensional structural schematic diagram of the stamping die for the structural component of this invention.

[0043] In the picture:

[0044] 1. Mounting base; 11. Through port;

[0045] 2. Support arm; 21. Horizontal sliding hole; 22. Vertical sliding hole;

[0046] 3. Lower mold base; 31. Lower pivot; 32. Lower template;

[0047] 4. Upper mold base; 41. Upper pivot; 42. Stamping frame; 43. Support frame; 44. Support slider; 45. Upper template;

[0048] 5. Stamping machine; 51. Workbench; 52. Hydraulic punch;

[0049] 6. Moving and rotating assembly; 61. Gear; 62. Driven disc; 621. Slide groove; 622. Insert block; 623. Spring groove; 624. Return spring; 63. Rack; 631. Smooth rod; 632. Tooth; 633. Guide slider; 64. Limiting ring; 641. Limiting groove; 642. Connecting rod; 643. Guide slide rod; 65. Support spring;

[0050] 7. Driven rotating assembly; 71. Lower rotating plate; 72. Upper rotating plate; 73. Intermediate shaft;

[0051] 8. Guide assembly; 81. Upper guide groove; 82. Lower guide groove; 83. Guide block; 831. Square block; 832. Arc block; 84. Guide post; 85. Guide tube; 86. Buffer spring; 87. Gasket. Detailed Implementation

[0052] 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.

[0053] Example 1

[0054] Please see Figure 1 , Figure 2 , Figure 12 and Figure 13 This invention provides a structural component stamping die, including a mounting base 1, a support arm 2, a lower die base 3, an upper die base 4, and a stamping machine 5. The support arm 2 is fixedly mounted on the upper end of the mounting base 1. Both ends of the lower die base 3 are fixedly mounted with lower rotating shafts 31, which are rotatably connected to the mounting base 1. Both ends of the upper die base 4 are fixedly mounted with upper rotating shafts 41, and a stamping frame 42 is rotatably mounted on the upper rotating shafts 41. The upper rotating shafts 41 can slide vertically on the support arm 2 and rotate. The side of the support arm 2 is provided with a movable rotating component 6 and a driven rotating component 7. The movable rotating component 6 is used to make the upper die base 4 rotate and flip after moving upward and separating from the lower die base 3, and continue to move upward after flipping. The upper die base 4 does not rotate when moving downward. The driven rotating component 7 is used to make the lower die base 3 rotate and flip synchronously when the upper die base 4 rotates and flips.

[0055] Both ends of the lower mold base 3 are fixedly installed with lower template 32, and both ends of the upper mold base 4 are fixedly installed with upper template 45. The lower template 32 and the upper template 45 are adapted to each other.

[0056] The press 5 is fixedly mounted with a worktable 51 and a hydraulic punch 52. The worktable 51 is fixedly connected to the bottom of the mounting base 1, and the drive end of the hydraulic punch 52 is fixedly connected to the press frame 42.

[0057] As can be seen from the above, the mounting base 1 serves as a basic support component, used to fix the support arm 2; the support arm 2 provides support for the sliding and rotation of the upper die base 4; the lower die base 3 is rotatably connected to the mounting base 1 via the lower rotating shaft 31, enabling it to flip over; the upper die base 4 is connected to the support arm 2 via the upper rotating shaft 41, allowing it to slide vertically and rotate on the support arm 2, and its upper templates 45 at both ends are adapted to the lower templates 32 at both ends of the lower die base 3, used for stamping structural components; the hydraulic punch 52 of the stamping press 5 drives the stamping frame 42, thereby causing the upper die base 4 to move up and down; the movable rotation component 6 allows the upper die base 4 to rotate and flip over after moving upward and separating from the lower die base 3, while ensuring that the upper die base 4 does not rotate downward when moving downward. Rotation; the driven rotation component 7 allows the lower die holder 3 to rotate and flip synchronously when the upper die holder 4 rotates and flips, so as to complete the stamping and dropping of the structural parts. By setting the rotatable design of the upper die holder 4 and the lower die holder 3, in conjunction with the moving self-rotating component 6 and the driven rotation component 7, the upper die holder 4 and the lower die holder 3 can be rotated and flipped synchronously after stamping, so that the structural parts can be dropped automatically without manual removal, reducing the cost of manual operation. By using the rotating alternating stamping station, the problem of mold overheating caused by continuous stamping in a single fixed station of traditional molds is effectively avoided, reducing the risk of mold thermal expansion deformation, hardness reduction and thermal fatigue cracks caused by high temperature, and significantly extending the service life of the mold.

[0058] When using this device, first fix the mounting base 1 on the workbench 51, fix the stamping frame 42 on the drive end of the hydraulic punch 52, and then place the structural part on the lower template 32. The hydraulic punch 52 drives the stamping frame 42 to move the upper die base 4 downward, so that the upper template 45 and the lower template 32 cooperate to complete the stamping. After the stamping is completed, the hydraulic punch 52 drives the upper die base 4 to move upward and separate from the lower die base 3. The moving self-rotating component 6 drives the upper die base 4 to rotate and flip over. The driven rotating component 7 operates synchronously to make the lower die base 3 and the upper die base 4 rotate 180° at the same time, and the structural part falls into the mounting base 1. After the die flips over, place the structural part to be stamped again, and the hydraulic punch 52 drives the upper die base 4 to move downward to perform the stamping.

[0059] Example 2

[0060] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 11As shown, the difference between this embodiment and the above embodiments is that the movable self-rotating component 6 includes a gear 61, a driven disk 62, a rack 63, and a limiting ring 64. The upper rotating shaft 41 is fixedly installed on the side wall of the upper mold base 4. The gear 61 and the driven disk 62 are both fixedly installed on the upper rotating shaft 41. The rack 63 and the limiting ring 64 are both slidably installed on the support arm 2. When the upper rotating shaft 41 moves downward, the limiting ring 64 is engaged and fixed with the driven disk 62, and the gear 61 pushes the rack 63 to slide laterally and retract. When the upper rotating shaft 41 moves upward, the driven disk 62 rotates inside the limiting ring 64, and the gear 61 meshes with the rack 63 for transmission.

[0061] As can be seen from the above, the movable rotation component 6 enables the directional rotation of the upper mold base 4. Since the gear 61 and the driven disk 62 are fixed on the upper rotating shaft 41, when they cooperate with the rack 63 and the limiting ring 64, the rotation timing of the upper mold base 4 can be controlled. When the upper rotating shaft 41 moves downward, the limiting ring 64 engages with the driven disk 62 to prevent the upper mold base 4 from rotating. At this time, when the gear 61 contacts the rack 63, the gear 61 cannot rotate, while the rack 63 is pushed to achieve lateral sliding and retraction. When the upper rotating shaft 41 moves upward, the driven disk 62 can rotate within the limiting ring 64. The gear 61 meshes with the rack 63 to drive the upper rotating shaft 41 to rotate, thereby realizing the rotation and flipping of the upper mold base 4.

[0062] The driven disk 62 is rotatably sleeved on the inner side of the limiting ring 64, and a sliding groove 621 is provided on the edge of the driven disk 62. An insert block 622 is slidably installed inside the sliding groove 621. A limiting groove 641 is provided on the inner side wall of the limiting ring 641. One end of the limiting groove 641 is provided with a slope surface, and the limiting groove 641 is adapted to be inserted into the insert block 622. A spring groove 623 is provided inside the sliding groove 621. A return spring 624 is provided inside the spring groove 623. The two ends of the return spring 624 are fixedly connected to the insert block 622 and the spring groove 623, respectively.

[0063] As can be seen from the above, the snap-fit ​​structure between the driven disk 62 and the limiting ring 64 ensures that the upper mold base 4 does not rotate when it moves downward. Since the driven disk 62 is rotatably sleeved on the inner side of the limiting ring 64, the insert 622 in the edge slide groove 621 can be fitted and inserted into the limiting groove 641 on the inner side wall of the limiting ring 64 under the action of the return spring 624. When the upper rotating shaft 41 moves upward, the insert 622 compresses the return spring 624 under the action of the inclined surface of the limiting groove 641 and slides into the slide groove 621, realizing the separation of the driven disk 62 from the limiting ring 64, so that the driven disk 62 can rotate. When the upper rotating shaft 41 moves downward, the insert 622 cannot be separated from the limiting groove 641, and the driven disk 62 and the limiting ring 64 are snap-fitted and fixed.

[0064] The rack 63 includes a smooth rod 631 and teeth 632. The teeth 632 are arranged in a linear array in the middle of one side wall of the smooth rod 631. A transverse sliding hole 21 is provided on the support arm 2. A guide slider 633 is fixedly installed on one side wall of the smooth rod 631. The guide slider 633 is slidably installed inside the transverse sliding hole 21. A support spring 65 is provided between the support arm 2 and the smooth rod 631. The two ends of the support spring 65 are fixedly connected to the support arm 2 and the smooth rod 631, respectively.

[0065] As can be seen from the above, the structure of the rack 63 enables it to switch between meshing and disengaging with the gear 61. Since the smooth rod 631 of the rack 63 slides in the transverse sliding hole 21 of the support arm 2 through the guide slider 633, and the teeth 632 are distributed in the middle of one side wall of the smooth rod 631, when the upper rotating shaft 41 moves downward, the gear 61 pushes the rack 63 to compress the support spring 65 and slide out, so that the teeth 632 disengage from the gear 61; when the upper rotating shaft 41 moves upward, the support spring 65 supports and pushes the rack 63 to remain stationary, so that the teeth 632 mesh with the gear 61 for transmission.

[0066] The support arm 2 has a vertical sliding hole 22. A connecting rod 642 is fixedly installed on the limiting ring 64. A guide slide rod 643 is fixedly installed on the connecting rod 642. The guide slide rod 643 is slidably connected to the vertical sliding hole 22. A support frame 43 is rotatably installed on the upper rotating shaft 41. Support sliders 44 are fixedly installed at both ends of the support frame 43. The support sliders 44 are slidably connected to the vertical sliding hole 22.

[0067] As can be seen from the above, the sliding structure of the limiting ring 64 and the upper rotating shaft 41 ensures the stability of its movement. The limiting ring 64 slides in the vertical sliding hole 22 of the support arm 2 through the guide slide rod 643 on the connecting rod 642. The support frame 43 on the upper rotating shaft 41 also slides in the vertical sliding hole 22 through the support slider 44. The sliding cooperation between the two keeps the upper rotating shaft 41 stable when it moves up and down, and at the same time provides guidance for the engagement and disengagement of the driven plate 62 and the limiting ring 64.

[0068] The mounting base 1 has a through-hole 11 in the middle, and the through-hole 11 communicates with the interior of the mounting base 1.

[0069] As can be seen from the above, the opening 11 in the middle of the mounting base 1 is connected to the interior, which facilitates the structural components to fall into the interior of the mounting base 1 after the mold is flipped, thus realizing the collection of the structural components.

[0070] Example 3

[0071] like Figure 2As shown, the difference between this embodiment and the above embodiments is that the driven rotating assembly 7 includes a lower rotating plate 71, an upper rotating plate 72 and an intermediate shaft 73. The intermediate shaft 73 is rotatably connected to both the lower rotating plate 71 and the upper rotating plate 72. The lower rotating plate 71 is rotatably connected to the lower rotating shaft 31. The upper rotating plate 72 is rotatably connected to the upper rotating shaft 41. The lower rotating shaft 31 and the intermediate shaft 73 are connected by a transmission pulley. The upper rotating shaft 41 and the intermediate shaft 73 are connected by a transmission pulley.

[0072] As can be seen from the above, the driven rotating assembly 7 realizes the synchronous flipping of the lower die holder 3 and the upper die holder 4. Since the lower rotating plate 71 is rotatably connected to the lower rotating shaft 31, the upper rotating plate 72 is rotatably connected to the upper rotating shaft 41, and the intermediate shaft 73 is rotatably connected to both the lower rotating plate 71 and the upper rotating plate 72, and the lower rotating shaft 31 and the intermediate shaft 73, as well as the upper rotating shaft 41 and the intermediate shaft 73, are all driven by transmission pulleys. When the upper die holder 4 rotates through the upper rotating shaft 41, it drives the upper rotating plate 72 to rotate. Through the intermediate shaft 73 and the transmission pulley, the lower rotating shaft 31 rotates. When the upper rotating shaft 41 cannot rotate, the lower rotating shaft 31 cannot rotate either, thereby realizing the synchronous rotation and flipping of the lower die holder 3, ensuring that the flipping angles of the upper die holder 4 and the lower die holder 3 are consistent, which is convenient for subsequent stamping operations.

[0073] Example 4

[0074] like Figure 8 , Figure 10 and Figure 11 As shown, the difference between this embodiment and the above embodiment is that a guide component 8 is also provided on the side of the support arm 2. The guide component 8 includes an upper guide groove 81, a lower guide groove 82 and a guide rotating block 83. The upper guide groove 81 and the lower guide groove 82 are respectively fixedly installed at the upper and lower ends of the support arm 2, and the groove openings of the upper guide groove 81 and the lower guide groove 82 are opposite to each other. The guide rotating block 83 includes a square block 831 and an arc-shaped block 832. The square block 831 is fixedly installed on the upper rotating shaft 41, and the center of the square block 831 coincides with the axis of the upper rotating shaft 41. The arc-shaped block 832 is fixedly installed at both ends of the square block 831. The two side walls of the square block 831 are slidably attached to the inner side walls of the upper guide groove 81 and the lower guide groove 82.

[0075] As can be seen from the above, the guide component 8 ensures the guidance and stability of the upper mold base 4 when it moves up and down and rotates and flips. When the upper mold base 4 moves up and down, the square block 831 slides and guides in the guide groove, which can restrict the upper mold base 4 from flipping. Only when the guide block 83 is between the upper guide groove 81 and the lower guide groove 82 and away from them can the upper mold base 4 rotate and flip. When the upper mold base 4 is close to the upper guide groove 81 or the lower guide groove 82, at this time, due to the action of the moving self-rotating component 6, the gear 61 just separates from the rack 63, and the arc block 832 on the guide block 83 faces upward and downward respectively. Due to the arc structure of the arc block 832, it is easier to insert into the upper guide groove 81 or the lower guide groove 82, avoiding the upper mold base 4 from tilting at a small angle.

[0076] Guide posts 84 are fixedly installed on both the upper and lower surfaces of the upper mold base 4, and guide tubes 85 are fixedly installed on both the upper and lower surfaces of the lower mold base 3. The guide tubes 85 are adapted to be inserted into the guide posts 84. A pyramidal post is provided at the end of the guide post 84 away from the upper mold base 4. A buffer spring 86 and a washer 87 are provided inside the guide tube 85. The two ends of the buffer spring 86 are fixedly connected to the lower mold base 3 and the washer 87, respectively.

[0077] As can be seen from the above, the setting of guide post 84 and guide tube 85 improves the accuracy and buffering effect of the fit between upper die base 4 and lower die base 3. The pyramidal post at the end of guide post 84 away from upper die base 4 facilitates the insertion of guide tube 85. The buffer spring 86 and shim 87 inside guide tube 85 can play a buffering role when upper die base 4 and lower die base 3 fit together, reducing impact, while ensuring accurate alignment of upper die plate 45 and lower die plate 32, thus improving stamping accuracy.

[0078] Example 5

[0079] Please see Figure 1 - Figure 13 The present invention also discloses a stamping process for assembled structural parts, the specific steps of which are as follows:

[0080] Mounting base 1 is fixedly installed on workbench 51, and stamping frame 42 is fixedly installed on drive end of hydraulic punch 52.

[0081] The structural component is placed on the lower template 32 located above the lower mold base 3. The hydraulic punch 52 drives the stamping frame 42, which in turn moves the upper rotating shaft 41 and the upper mold base 4 downward, so that the upper template 45 and the lower template 32 cooperate to complete the stamping.

[0082] After stamping is completed, the hydraulic punch 52 drives the upper die holder 4 to move upward and separate from the lower die holder 3. After the upper die holder 4 and the lower die holder 3 are separated, the moving self-rotating component 6 is started, which drives the upper die holder 4 to rotate and flip. The driven rotating component 7 operates synchronously, so that the lower die holder 3 and the upper die holder 4 are rotated 180° at the same time. During the process, the structural parts fall into the interior of the mounting base 1.

[0083] After the mold is flipped, the structural part to be stamped is placed on the lower template 32 above the lower mold base 3. The hydraulic punch 52 drives the upper mold base 4 to move downward to stamp the structural part.

[0084] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A structural member stamping die comprising a mounting base, a support arm, a lower die shoe, an upper die shoe, and a stamping press, characterized by: The support arm is fixedly installed at the upper end of the mounting seat, both ends of the lower die seat are fixedly installed with lower rotating shafts, the lower rotating shafts are rotationally connected with the mounting seat, both ends of the upper die seat are fixedly installed with upper rotating shafts, the upper rotating shafts are rotationally installed with stamping frames, and the upper rotating shafts can vertically slide on the support arm and rotate, the side surface of the support arm is provided with a moving rotation assembly and a driven rotation assembly, the moving rotation assembly is used for rotating and turning over the upper die seat after moving upward and separating from the lower die seat, and continuously moving upward after turning over, and the upper die seat does not rotate when moving downward, and the driven rotation assembly is used for synchronously rotating and turning over the lower die seat when the upper die seat rotates and turns over. Both ends of the lower die seat are fixedly installed with lower die plates, both ends of the upper die seat are fixedly installed with upper die plates, and the lower die plates and the upper die plates are matched. The stamping machine is fixedly installed with a workbench and a hydraulic punch, the workbench is fixedly connected with the bottom of the mounting seat, and the driving end of the hydraulic punch is fixedly connected with the stamping frame. The moving rotation assembly comprises a gear, a driven disc, a rack and a limiting ring, the upper rotating shaft is fixedly installed on the side wall of the upper die seat, the gear and the driven disc are fixedly installed on the upper rotating shaft, and the rack and the limiting ring are slidingly installed on the support arm; when the upper rotating shaft moves downward, the limiting ring is clamped and fixed with the driven disc, the gear pushes the rack to slide transversely and retreat, when the upper rotating shaft moves upward, the driven disc rotates in the interior of the limiting ring, and the gear is in meshing transmission with the rack. The driven disc is rotationally sleeved on the interior of the limiting ring, the edge of the driven disc is provided with a sliding groove, the sliding groove is slidingly installed with an insertion block, the interior side wall of the limiting ring is provided with a limiting groove, one end of the limiting groove is provided with an inclined surface, the limiting groove is adaptively inserted with the insertion block, the interior of the sliding groove is provided with a spring groove, and the spring groove is provided with a reset spring, and both ends of the reset spring are fixedly connected with the insertion block and the spring groove. The driven rotation assembly comprises a lower rotating plate, an upper rotating plate and an intermediate shaft, the intermediate shaft is rotationally connected with the lower rotating plate and the upper rotating plate, the lower rotating plate is rotationally connected with the lower rotating shaft, the upper rotating plate is rotationally connected with the upper rotating shaft, the lower rotating shaft is drivingly connected with the intermediate shaft through a transmission belt wheel, and the upper rotating shaft is drivingly connected with the intermediate shaft through a transmission belt wheel.

2. A structural member stamping die according to claim 1, wherein: The rack comprises a light pole and teeth, the teeth are linearly arranged on the middle part of one side wall of the light pole, the support arm is provided with a transverse sliding hole, one side wall of the light pole is fixedly installed with a guide sliding block, the guide sliding block is slidingly installed in the interior of the transverse sliding hole, and a support spring is arranged between the support arm and the light pole.

3. The structural member stamping die of claim 1, wherein: A vertical sliding hole is formed in the support arm, a connecting rod is fixedly installed on the limiting ring, a guide sliding rod is fixedly installed on the connecting rod, the guide sliding rod is slidingly connected with the vertical sliding hole, a support frame is rotationally installed on the upper rotating shaft, support sliding blocks are fixedly installed at both ends of the support frame, and the support sliding blocks are slidingly connected with the vertical sliding hole.

4. The structural member stamping die of claim 1, wherein: The side surface of the support arm is further provided with a guide assembly, the guide assembly comprises an upper guide slot, a lower guide slot and a guide rotating block, the upper guide slot and the lower guide slot are fixedly installed at the upper end and the lower end of the support arm respectively, and the slot directions of the upper guide slot and the lower guide slot are opposite, the guide rotating block comprises a square block and an arc block, the square block is fixedly installed on the upper rotating shaft, and the center of the square block is coincident with the axis of the upper rotating shaft, the arc block is fixedly installed at the two ends of the square block, and the two side walls of the square block are in sliding fit with the two side inner walls of the upper guide slot and the lower guide slot.

5. The structural member stamping die of claim 1, wherein: The upper surface and the lower surface of the upper die seat are fixedly installed with guide columns, the upper surface and the lower surface of the lower die seat are fixedly installed with guide pipes, the guide pipes are adaptively inserted with the guide columns, one end of the guide column away from the upper die seat is provided with a pyramid column, the inside of the guide pipe is provided with a buffer spring and a gasket, and the two ends of the buffer spring are fixedly connected with the lower die seat and the gasket respectively.

6. The structural member stamping die of claim 1, wherein: The middle part of the mounting seat is provided with a through port which is communicated with the inside of the mounting seat.

7. A process for the stamping of a fabricated structural member using a die as claimed in any one of claims 1 to 6, wherein, The specific steps are as follows: The mounting seat is fixedly installed on the workbench, and the stamping frame is fixedly installed on the driving end of the hydraulic punch; The structural part is placed on the lower die plate above the lower die seat, the hydraulic punch drives the stamping frame, drives the upper rotating shaft and the upper die seat to move downward, and the upper die plate and the lower die plate cooperate to complete stamping; After stamping, the hydraulic punch drives the upper die seat to move upward and separate from the lower die seat, after the upper die seat and the lower die seat are separated, the self-rotation assembly is started to drive the upper die seat to rotate and turn over, the driven rotation assembly is synchronously operated to make the lower die seat and the upper die seat turn over by 180° at the same time, and the structural part falls into the inside of the mounting seat in the process; After the die turning over is completed, the structural part to be stamped is placed on the lower die plate above the lower die seat, and the hydraulic punch drives the upper die seat to move downward to stamp the structural part.

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