A stamping device for multi-size processed parts

Abstract

The present application relates to the technical field of stamping processing of parts, and particularly relates to a stamping device for parts of multiple sizes. The present application relates to the technical field of stamping processing of parts, and particularly relates to a stamping device for parts of multiple sizes. When it is necessary to replace the processing size, the rotating assembly drives the rotating disc to rotate, one target size of the multiple different specifications of the upper die seat installed at the bottom is rotated to the working position opposite to the output end of the stamping driving mechanism, automatic positioning of the upper die is realized; at the same time, the driving assembly drives the sliding seat to move horizontally along the installation guide rail, the lower die seat matched with the target upper die seat in size and installed on the sliding seat is synchronously moved to be directly below the stamping driving mechanism, and the upper and lower dies are accurately centered in the vertical direction. The whole process does not need manual intervention for disassembly and assembly of the die, continuous operation without shutdown is realized, the die switching time is greatly shortened, and the processing efficiency and flexibility in the mode of multiple varieties and small batches are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of stamping technology for parts, and more particularly to a stamping apparatus for multi-size parts. Background Technology

[0002] Stamping is one of the most widely used forming processes in metal parts manufacturing. It involves applying external force to sheet metal or strip materials using a die driven by a press, causing plastic deformation or separation to obtain workpieces of the desired shape and size. In numerous industrial sectors such as automobile manufacturing, home appliance production, and aerospace, stamping equipment is an indispensable key processing tool, and its processing efficiency and flexibility directly affect the production capacity and profitability of manufacturing enterprises.

[0003] Currently, the basic structure of a stamping device for parts typically includes an upper die holder, a lower die holder, a stamping head (or punch) mounted on the upper die holder, and a forming die mounted on the lower die holder. During operation, a hydraulic cylinder or mechanical press drives the upper die holder downwards, causing the stamping head and die to cooperate in stamping the workpiece. To accommodate the processing of parts of different specifications, some existing stamping devices are equipped with replaceable die mounting structures, allowing the production of parts of different sizes by changing different stamping heads and dies.

[0004] However, existing stamping equipment for parts requires downtime for mold replacement during actual use. Frequent mold disassembly and assembly is time-consuming, leading to interruptions in processing continuity and severely restricting processing efficiency and flexibility in multi-variety, small-batch production modes. Summary of the Invention

[0005] The purpose of this invention is to provide a stamping device for multi-size parts, which aims to solve the technical problem that existing stamping devices for parts require machine downtime for mold replacement during actual use. Frequent mold disassembly and assembly are time-consuming, leading to interruptions in processing continuity and severely restricting the processing efficiency and flexibility in multi-variety, small-batch production modes.

[0006] To achieve the above objectives, the present invention provides a stamping device for multi-size parts processing, including a worktable, a frame, a stamping drive mechanism, and an adjustment mechanism. The frame is disposed on the upper surface of the worktable, and the stamping drive mechanism is disposed at the top of the frame. The adjustment mechanism includes two mounting guide rails, two drive components, a sliding seat, multiple lower die seats, a mounting plate, a rotating component, a rotating plate, and multiple upper die seats. The two mounting guide rails are fixedly installed on the lateral sides of the upper surface of the worktable, and the sliding seat is slidably disposed between the two mounting guide rails. Each mounting guide rail is provided with a drive component, and the output end of the drive component is connected to the sliding seat. The mounting plate is fixedly installed at the output end of the stamping drive mechanism. The rotating disk is rotatably arranged at the bottom of the mounting plate, and the rotating assembly is arranged at the top of the mounting plate. The output end of the rotating assembly is mechanically driven by the rotating disk. Multiple upper die holders are evenly arranged at the bottom of the rotating disk.

[0007] Each of the drive components includes a first drive motor, a threaded rod, and a ball screw nut assembly. The threaded rod is rotatably disposed inside the mounting guide rail, and the ball screw nut assembly is disposed on the threaded rod. The ball screw nut assembly is connected to the sliding seat. The first drive motor is mounted outside one end of the mounting guide rail, and the output end of the first drive motor is mechanically driven by the threaded rod.

[0008] Each threaded rod has a rotating head at both ends, and each mounting guide rail has a bearing seat at both ends, with the rotating head embedded inside the corresponding bearing seat.

[0009] The upper surface of the worktable is also provided with a first positioning detection sensor, and each lower die base is provided with a first detection receiver that cooperates with the first positioning detection sensor on its side. The installation position of the first positioning detection sensor corresponds to the stamping drive mechanism in the vertical direction. When the sliding seat drives any of the lower die bases to move to a position aligned with the stamping drive mechanism, the first detection receiver on the side of the lower die base faces the first positioning detection sensor, and the first positioning detection sensor sends a stop signal to the drive assembly.

[0010] The rotating assembly includes a second drive motor, a gear reducer, and a coupling. A rotating shaft is provided at the center of the upper surface of the rotating disk. The rotating shaft passes through the center of the mounting disk and extends to the upper surface of the mounting disk. The second drive motor is mounted above the mounting disk. The gear reducer is provided at the output end of the second drive motor. The output end of the gear reducer is connected to the rotating shaft through the coupling.

[0011] The mounting plate is provided with a second positioning detection sensor on its side, and each upper die holder is provided with a second detection receiver that cooperates with the second positioning detection sensor on its side. The installation position of the second positioning detection sensor corresponds to the stamping drive mechanism in the vertical direction. When the rotating component drives any upper die holder to rotate to a position aligned with the stamping drive mechanism, the second detection receiver on the side of the upper die holder faces the second positioning detection sensor, and the second positioning detection sensor sends a stop signal to the rotating component.

[0012] The upper surface of the mounting plate is provided with multiple limiting posts, and the end of each limiting post away from the mounting plate passes through the top of the frame.

[0013] The sliding seat has two sliding feet on each side, each sliding foot is located on one side of the corresponding mounting rail, and each mounting rail has a guide groove on both sides, with the sliding feet slidably connected to the corresponding guide groove.

[0014] The stamping device for multi-size processed parts further includes two protective plates. Each of the mounting guide rails is provided with a protective plate above it. Both sides of the sliding seat are provided with through slots, and each protective plate passes through the corresponding through slot.

[0015] Each of the protective plates has a connecting block on both sides. One end of the connecting block is connected to the side of the mounting rail, and the other end of the connecting block is connected to the side of the protective plate.

[0016] This invention discloses a stamping device for multi-size machining of parts, comprising a worktable, a frame, a stamping drive mechanism, and an adjustment mechanism. The adjustment mechanism includes two mounting guide rails, two drive components, a sliding seat, multiple lower die holders, a mounting plate, a rotating component, a rotating plate, and multiple upper die holders. When a machining size needs to be changed, the rotating component drives the rotating plate to rotate, rotating one of the multiple upper die holders of different specifications mounted at the bottom to a working position aligned with the output end of the stamping drive mechanism, thus achieving automatic positioning of the upper die. Simultaneously, the drive component drives the sliding seat to move horizontally along the mounting guide rails, synchronously moving the lower die holder mounted on the sliding seat that matches the size of the target upper die holder to directly below the stamping drive mechanism, ensuring precise vertical alignment of the upper and lower dies. The entire process requires no manual intervention to disassemble or assemble the mold. Different sizes of molds can be combined and switched simply by rotating the rotating disk and translating the sliding seat. The stamping drive mechanism then drives the upper mold base downward to complete the stamping process, thereby achieving continuous operation without stopping the machine. This significantly shortens the mold switching time and greatly improves the processing efficiency and flexibility in multi-variety, small-batch production modes. Attached Figure Description

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

[0018] Figure 1 This is a schematic diagram of the structure of a stamping device for multi-size processed parts according to the first embodiment of the present invention.

[0019] Figure 2 This invention provides Figure 1 A magnified view of the local structure at point A.

[0020] Figure 3 This invention provides Figure 1 A structural diagram from another perspective.

[0021] Figure 4 This invention provides Figure 3 A magnified view of the local structure at point B.

[0022] Figure 5 This is a schematic diagram of the disassembled structure of the sliding seat and the mounting guide rail in the first embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the connection structure between the sliding seat and the mounting guide rail in the second embodiment of the present invention.

[0024] Figure 7 This invention provides Figure 6 A magnified view of the local structure at point C.

[0025] 101-Workbench, 102-Frame, 103-Pressing drive mechanism, 104-Mounting guide rail, 105-Sliding seat, 106-Lower die holder, 107-Mounting plate, 108-Rotating plate, 109-Upper die holder, 110-First drive motor, 111-Threaded rod, 112-Ball screw nut pair, 113-Second drive motor, 114-Gear reducer, 115-Coupling, 116-Rotating head, 117-Bearing seat, 118-First position detection sensor, 119-First detection receiver, 120-Rotating shaft, 121-Second position detection sensor, 122-Second detection receiver, 123-Limit post, 124-Sliding foot, 125-Guide groove, 201-Protective plate, 202-Through groove, 203-Connecting block. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] First embodiment: Please see Figures 1 to 5 ,in Figure 1This is a schematic diagram of the stamping apparatus for multi-size processed parts according to the first embodiment. Figure 2 yes Figure 1 A magnified view of the local structure at point A. Figure 3 yes Figure 1 Another structural diagram from the perspective of Figure 4 yes Figure 3 A magnified view of the local structure at point B. Figure 5 This is a schematic diagram of the disassembled structure of the sliding seat and the mounting rail in the first embodiment.

[0028] This invention provides a stamping device for multi-size parts processing: it includes a worktable 101, a frame 102, a stamping drive mechanism 103, and an adjustment mechanism. The adjustment mechanism includes two mounting guide rails 104, two drive components, a sliding seat 105, multiple lower die holders 106, a mounting plate 107, a rotating component, a rotating plate 108, and multiple upper die holders 109. Each drive component includes a first drive motor 110, a threaded rod 111, and a ball screw nut pair 112. The rotating component includes a second drive motor 113, a gear reducer 114, and a coupling 115. This solution solves the problem that existing stamping devices for parts require downtime for die replacement during actual use, resulting in frequent and time-consuming die disassembly and assembly, which interrupts processing continuity and severely restricts processing efficiency and flexibility in multi-variety, small-batch production modes. It is understood that the aforementioned solution can be applied to the structure of a stamping device for multi-size parts processing.

[0029] In this specific embodiment, the upper surface of the workbench 101 is provided with the frame 102, the top of the frame 102 is provided with the stamping drive mechanism 103, the two mounting guide rails 104 are fixedly installed on the lateral sides of the upper surface of the workbench 101, the sliding seat 105 is slidably arranged between the two mounting guide rails 104, and the drive component is provided at each mounting guide rail 104. The output end of the drive component is connected to the sliding seat 105. The mounting plate 107 is fixedly installed at the output end of the stamping drive mechanism 103. The rotating plate 108 is rotatably arranged at the bottom of the mounting plate 107. The rotating component is arranged at the top of the mounting plate 107. The output end of the rotating component is mechanically driven by the rotating plate 108. A plurality of upper die holders 109 are evenly arranged at the bottom of the rotating plate 108.

[0030] In this embodiment, when a change in processing size is required, the rotating component drives the rotating disk 108 to rotate, rotating one of the multiple upper die holders 109 of different specifications mounted at the bottom to a working position aligned with the output end of the stamping drive mechanism 103, thus achieving automatic positioning of the upper die. Simultaneously, the drive component drives the sliding seat 105 to move horizontally along the mounting guide rail 104, synchronously moving the lower die holder 106 mounted on the sliding seat 105, which matches the size of the target upper die holder 109, directly below the stamping drive mechanism 103, ensuring precise vertical alignment of the upper and lower dies. The entire process requires no manual intervention in disassembling and assembling the molds; the combination and switching of different sized dies can be completed solely through the rotational positioning of the rotating disk 108 and the translational repositioning of the sliding seat 105. The stamping drive mechanism 103 then drives the upper die holder 109 downwards to complete the stamping process, thereby achieving continuous operation without stopping the machine, significantly shortening the die changeover time, and significantly improving processing efficiency and flexibility in multi-variety, small-batch production modes.

[0031] The threaded rod 111 is rotatably disposed inside the mounting guide rail 104. The threaded rod 111 is provided with the ball screw nut pair 112, which is connected to the sliding seat 105. The first drive motor 110 is installed outside one end of the mounting guide rail 104, and the output end of the first drive motor 110 is mechanically driven by the threaded rod 111.

[0032] In this embodiment, the first drive motor 110 drives the threaded rod 111 to rotate, and the ball screw nut pair 112 converts the rotational motion of the threaded rod 111 into the linear motion of the sliding seat 105. The transmission is smooth and the positioning accuracy is high, which can ensure that each of the lower die seats 106 moves accurately to the predetermined working position, providing a reliable position guarantee for subsequent stamping processing.

[0033] Secondly, each of the threaded rods 111 is provided with a rotating head 116 at both ends, and each of the mounting guide rails 104 is provided with a bearing seat 117 at both ends, with the rotating head 116 embedded inside the corresponding bearing seat 117.

[0034] In this embodiment, by setting the rotating head 116 at both ends of the threaded rod 111 and embedding it into the bearing seat 117 at both ends of the mounting guide rail 104, the threaded rod 111 obtains stable radial and axial support when rotating, reducing the vibration and flexural deformation of the threaded rod 111 during high-speed rotation, extending the service life of the drive assembly, and ensuring the smoothness and accuracy of the displacement of the sliding seat 105.

[0035] Meanwhile, a first positioning detection sensor 118 is also provided on the upper surface of the worktable 101. Each lower die holder 106 is provided with a first detection receiver 119 that cooperates with the first positioning detection sensor 118 on its side. The installation position of the first positioning detection sensor 118 corresponds to the stamping drive mechanism 103 in the vertical direction. When the sliding seat 105 drives any lower die holder 106 to move to a position aligned with the stamping drive mechanism 103, the first detection receiver 119 on the side of the lower die holder 106 faces the first positioning detection sensor 118, and the first positioning detection sensor 118 sends a stop signal to the drive assembly.

[0036] In this embodiment, by setting the first positioning detection sensor 118 on the worktable 101 and setting the corresponding first detection receiver 119 on the side of the lower die holder 106, when the sliding seat 105 drives the lower die holder 106 of any size to a position vertically aligned with the stamping drive mechanism 103, the first positioning detection sensor 118 immediately sends a stop signal to stop the drive assembly, thereby realizing the automatic and accurate alignment and positioning confirmation of the lower die holder 106, avoiding the misalignment of the upper and lower dies caused by excessive or insufficient displacement, and ensuring the centering accuracy and safety of stamping processing.

[0037] In addition, a rotating shaft 120 is provided at the center of the upper surface of the rotating disk 108. The rotating shaft 120 passes through the center of the mounting disk 107 and extends to the upper surface of the mounting disk 107. The second drive motor 113 is mounted above the mounting disk 107. The output end of the second drive motor 113 is provided with the gear reduction box 114. The output end of the gear reduction box 114 is connected to the rotating shaft 120 through the coupling 115.

[0038] In this embodiment, after the second drive motor 113 is reduced in speed and increased in torque by the gear reducer 114, the rotating shaft 120 is driven by the coupling 115 to rotate the rotating disk 108. The gear reducer 114 can convert the high-speed, low-torque output of the second drive motor 113 into a low-speed, high-torque output, so that the rotating disk 108 rotates smoothly and is accurately positioned, ensuring that each upper mold base 109 will not overshoot due to inertia during the switching process, thus improving the reliability of upper mold switching.

[0039] Furthermore, a second positioning detection sensor 121 is provided on the side of the mounting plate 107, and a second detection receiver 122 that cooperates with the second positioning detection sensor 121 is provided on the side of each upper die holder 109. The installation position of the second positioning detection sensor 121 corresponds to the stamping drive mechanism 103 in the vertical direction. When the rotating component drives any upper die holder 109 to rotate to a position aligned with the stamping drive mechanism 103, the second detection receiver 122 on the side of the upper die holder 109 faces the second positioning detection sensor 121, and the second positioning detection sensor 121 sends a stop signal to the rotating component.

[0040] In this embodiment, by setting the second positioning detection sensor 121 on the side of the mounting plate 107 and setting the corresponding second detection receiver 122 on the side of each upper die holder 109, when the rotating component drives any size upper die holder 109 to rotate to a position vertically aligned with the stamping drive mechanism 103, the second positioning detection sensor 121 immediately sends a stop signal to stop the rotating component, thereby realizing the automatic and precise alignment and positioning confirmation of the upper die holder 109. This ensures that the currently selected upper die holder 109 and the lower die holder 106 already in place below are precisely aligned in the vertical direction, guaranteeing the concentricity and forming quality of the stamping process.

[0041] Furthermore, the upper surface of the mounting plate 107 is provided with a plurality of limiting posts 123, and the end of each limiting post 123 away from the mounting plate 107 passes through the top of the frame 102.

[0042] In this embodiment, by providing a plurality of limiting posts 123 through the top of the frame 102 on the upper surface of the mounting plate 107, the limiting posts 123 play a guiding and anti-rotation role when the stamping drive mechanism 103 drives the mounting plate 107 to reciprocate up and down, preventing the mounting plate 107 and the rotating plate 108 from circumferentially deflecting during the stamping process, ensuring that the positional accuracy between the upper die holder 109 and the lower die holder 106 remains stable during each stamping, and improving the consistency of the stamping process.

[0043] Furthermore, each side of the sliding seat 105 is provided with two sliding feet 124, each sliding foot 124 is located on one side of the corresponding mounting rail 104, and each mounting rail 104 is provided with guide grooves 125 on both sides, and the sliding feet 124 are slidably connected to the corresponding guide grooves 125.

[0044] In this embodiment, by providing two sliding feet 124 on each side of the sliding seat 105 and positioning each sliding foot 124 in the guide groove 125 corresponding to the mounting rail 104, the sliding seat 105 is subjected to uniform force and runs smoothly when sliding along the mounting rail 104.

[0045] When using the multi-size processing stamping device of this embodiment, firstly, according to the size specifications of the parts to be processed, the second drive motor 113 is started. The second drive motor 113 is reduced in speed by the gear reducer 114 and then drives the rotating shaft 120 to rotate the rotating disk 108 through the coupling 115. When the second positioning detection sensor 121 on the side of the mounting disk 107 detects the second detection receiver 122 on the side of the upper die holder 109 of the target size, the second positioning detection sensor 121 sends a stop signal, and the rotating assembly stops moving. At this time, the upper die holder 109 of the target size is accurately rotated to directly below the stamping drive mechanism 103. Then, the two first drive motors 110 are started, and the first drive motors 110 drive the threaded rod 111. The rotation drives the sliding seat 105 to move horizontally along the mounting guide rail 104 via the ball screw nut pair 112. When the first positioning detection sensor 118 on the worktable 101 detects the first detection receiver 119 on the side of the lower die seat 106, which matches the size of the target upper die seat 109, the first positioning detection sensor 118 sends a stop signal, and the drive assembly stops operating. At this time, the corresponding lower die seat 106 moves accurately to directly below the stamping drive mechanism 103 and is vertically aligned with the upper die seat 109. Finally, the stamping drive mechanism 103 is activated, and the stamping drive mechanism 103 drives the mounting plate 107, the rotating plate 108, and the upper die seat 109 to move downward as a whole. The upper die seat 109 and the lower die seat 106 cooperate to complete the stamping and forming of the workpiece. Throughout the processing, the limiting post 123 guides and prevents the mounting plate 107 from rotating vertically, and the cooperation between the sliding foot 124 and the guide groove 125 ensures that the sliding seat 105 moves smoothly, thus completing the stamping process for all parts in sequence. If a part of another size needs to be processed, simply follow the above steps to reselect the corresponding upper die holder 109 and drive the sliding seat 105 to move the corresponding lower die holder 106 into place. The entire process does not require stopping the machine to disassemble and reassemble the mold, realizing continuous and rapid switching processing of parts of multiple sizes, significantly improving the processing efficiency and flexibility in multi-variety, small-batch production modes.

[0046] Second embodiment: Based on the first embodiment, please refer to Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the connection structure between the sliding seat and the mounting rail in the second embodiment. Figure 7 yes Figure 6 A magnified view of the local structure at point C.

[0047] The present invention provides a stamping device for multi-size processed parts, which also includes two protective plates 201.

[0048] In this specific embodiment, a protective plate 201 is provided above each of the mounting guide rails 104, and through slots 202 are provided on both sides of the sliding seat 105, with each protective plate 201 passing through the corresponding through slot 202.

[0049] In this embodiment, the protective plate 201 protects the cross-section of the mounting rail 104, preventing impurities from the external environment from entering the interior of the mounting rail 104 and affecting the operation of the drive component.

[0050] Each of the protective plates 201 has a connecting block 203 on both sides. One end of the connecting block 203 is connected to the side of the mounting guide rail 104, and the other end of the connecting block 203 is connected to the side of the protective plate 201.

[0051] In this embodiment, the installation of the protective plate 201 is facilitated by the connection block 203.

[0052] When using the stamping device for multi-size processed parts according to this embodiment, the installation of the protective plate 201 is facilitated by the setting of the connecting block 203. The protective plate 201 protects the cross-section of the mounting guide rail 104, preventing impurities from the external environment from entering the interior of the mounting guide rail 104 and affecting the operation of the drive component.

[0053] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A stamping apparatus for multi-size processed parts, comprising a worktable, a frame, and a stamping drive mechanism, wherein the frame is disposed on the upper surface of the worktable, and the stamping drive mechanism is disposed on the top of the frame, characterized in that, It also includes adjustment mechanisms; The adjustment mechanism includes two mounting guide rails, two drive components, a sliding seat, multiple lower mold bases, a mounting plate, a rotating component, a rotating plate, and multiple upper mold bases. The two mounting guide rails are fixedly installed on both sides of the upper surface of the worktable. The sliding seat is slidably arranged between the two mounting guide rails. Each mounting guide rail is provided with a drive component, and the output end of the drive component is connected to the sliding seat. The mounting plate is fixedly installed at the output end of the stamping drive mechanism. The rotating disk is rotatably arranged at the bottom of the mounting plate, and the rotating assembly is arranged at the top of the mounting plate. The output end of the rotating assembly is mechanically driven by the rotating disk. Multiple upper die holders are evenly arranged at the bottom of the rotating disk.

2. The stamping apparatus for multi-size processed parts as described in claim 1, characterized in that, Each of the drive components includes a first drive motor, a threaded rod, and a ball screw nut assembly. The threaded rod is rotatably disposed inside the mounting guide rail, and the ball screw nut assembly is disposed on the threaded rod. The ball screw nut assembly is connected to the sliding seat. The first drive motor is mounted outside one end of the mounting guide rail, and the output end of the first drive motor is mechanically driven by the threaded rod.

3. The stamping apparatus for multi-size processed parts as described in claim 2, characterized in that, Each threaded rod is provided with a rotating head at both ends, and each mounting guide rail is provided with a bearing seat at both ends, with the rotating head embedded inside the corresponding bearing seat.

4. The stamping apparatus for multi-size processed parts as described in claim 3, characterized in that, The upper surface of the worktable is also provided with a first positioning detection sensor. Each lower die base is provided with a first detection receiver that cooperates with the first positioning detection sensor on its side. The installation position of the first positioning detection sensor corresponds to the stamping drive mechanism in the vertical direction. When the sliding seat drives any of the lower die bases to move to a position aligned with the stamping drive mechanism, the first detection receiver on the side of the lower die base faces the first positioning detection sensor, and the first positioning detection sensor sends a stop signal to the drive assembly.

5. The stamping apparatus for multi-size processed parts as described in claim 1, characterized in that, The rotating assembly includes a second drive motor, a gear reducer, and a coupling. A rotating shaft is provided at the center of the upper surface of the rotating disk. The rotating shaft passes through the center of the mounting disk and extends to the upper surface of the mounting disk. The second drive motor is mounted above the mounting disk. The output end of the second drive motor is provided with the gear reducer. The output end of the gear reducer is connected to the rotating shaft through the coupling.

6. The stamping apparatus for multi-size processed parts as described in claim 5, characterized in that, A second positioning detection sensor is provided on the side of the mounting plate, and a second detection receiver that cooperates with the second positioning detection sensor is provided on the side of each upper die holder. The installation position of the second positioning detection sensor corresponds to the stamping drive mechanism in the vertical direction. When the rotating component drives any upper die holder to rotate to a position aligned with the stamping drive mechanism, the second detection receiver on the side of the upper die holder faces the second positioning detection sensor, and the second positioning detection sensor sends a stop signal to the rotating component.

7. The stamping apparatus for multi-size processed parts as described in claim 1, characterized in that, The upper surface of the mounting plate is also provided with a plurality of limiting posts, and the end of each limiting post away from the mounting plate passes through the top of the frame.

8. The stamping apparatus for multi-size processed parts as described in claim 1, characterized in that, Two sliding feet are provided on both sides of the sliding seat. Each sliding foot is located on one side of the corresponding mounting rail. Each mounting rail has guide grooves on both sides, and the sliding feet are slidably connected to the corresponding guide grooves.

9. The stamping apparatus for multi-size processed parts as described in claim 2, characterized in that, The stamping device for multi-size processed parts also includes two protective plates. Each of the mounting guide rails is provided with a protective plate above it. Both sides of the sliding seat are provided with through slots, and each protective plate passes through the corresponding through slot.

10. The stamping apparatus for multi-size processed parts as described in claim 9, characterized in that, Each of the protective plates has a connecting block on both sides. One end of the connecting block is connected to the side of the mounting rail, and the other end of the connecting block is connected to the side of the protective plate.

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