A processing die for a chassis port complex structure panel

Abstract

The utility model relates to punch die technical field especially a kind of processing die for the machining of complex structure panel of case port, including mutually matched upper die and lower die, punch one and punch two are provided on the lower die, punch one is symmetrically provided with two with punch two, punch two is set as through slot, the edge corresponding to punch two on the lower die is provided with stepped impact groove, the upper die corresponding to the side surface of lower die is provided with the impact ring matched with stepped impact groove, two punch rods respectively corresponding punch one matched arrangement and one impact block matched with punch two are provided in the upper die, the upper end of punch rod and impact block is set with connecting block, which is arranged on the upper side surface of upper die, the connecting block is fixedly connected with two punch rods and one impact block, the upper die is connected with the one stamping end of punch press, the connecting block is connected with the other stamping end of punch press, the utility model can once accurate forming server case port.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically to a processing die for a complex structure panel of a chassis port. Background Technology

[0002] In the manufacturing process of server chassis, the chassis, as the core metal shell that houses the server modules, requires multiple precision ports on its surface to match the interface requirements of different server modules. These ports have complex structures, typically involving multiple processes such as punching and stamping to form the geometry required for functionality. However, existing manufacturing methods rely on multiple independent stamping dies to complete each process, necessitating the simultaneous operation of multiple stamping machines. In actual processing, sheet metal parts need to be frequently moved and repositioned between different dies. This process is highly susceptible to cumulative positioning deviations due to mechanical vibration, human error, or equipment precision limitations. The accumulation of these deviations causes the final port position, size, or shape to deviate from the design specifications, resulting in inaccurate matching between the ports and the server module interfaces, thus affecting installation stability and signal transmission reliability. Furthermore, the coordinated operation of multiple sets of equipment not only increases equipment investment and maintenance costs but also adds complexity to the production process and increases the risk of failure. Therefore, existing technologies urgently need improvement to address these issues. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a processing mold for complex structure panels of chassis ports.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a processing mold for complex structure panels of chassis ports, comprising an upper mold and a lower mold that cooperate with each other. The lower mold is provided with a first punch and a second punch, two first punches symmetrically arranged with respect to the second punch, and the second punch is arranged as a through groove. The lower mold is provided with a stepped punch groove corresponding to the edge of the second punch. The upper mold is provided with a punch ring that cooperates with the stepped punch groove on one side corresponding to the lower mold. The upper mold is provided with two punch rods that cooperate with the first punch and a punch block that cooperates with the second punch. The upper ends of the punch rods and the punch block extend out of the upper side of the upper mold and are provided with a connecting block. The connecting block is fixedly connected to the two punch rods and the punch block. The upper mold is connected to one stamping end of a stamping machine, and the connecting block is connected to the other stamping end of the stamping machine.

[0005] In some embodiments, the upper side of the upper mold is provided with a stroke groove corresponding to the connecting block, and the connecting block is slidably disposed within the stroke groove.

[0006] In some embodiments, the upper opening of the stroke groove is provided with a sealing block connected to the upper mold, and a through hole is provided at the center of the sealing block. One stamping end of the press is in contact with the sealing block, and the other stamping end of the press extends into the through hole and is in contact with the connecting block.

[0007] In some embodiments, the lower mold is provided with multiple optical axes, all of which are slidably connected to the upper mold and the connecting block.

[0008] In some embodiments, a return spring is provided between the connecting block and the upper mold at a position corresponding to the optical axis.

[0009] In some embodiments, the lower mold is provided with multiple screws, and the screws are provided with limit plates. The center of the limit plates is provided with sliding holes that slide with the upper mold.

[0010] In some embodiments, a plurality of reset springs are provided between the upper mold and the limiting plate.

[0011] In some embodiments, the sidewall of the upper mold is provided with a limiting block that cooperates with the limiting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by integrating the upper and lower molds, the step-by-step operation of punching the recess first and then punching the hole is realized, avoiding the positioning deviation caused by the movement of sheet metal parts between multiple molds, and has the advantages of reducing positioning deviation, improving processing accuracy and reducing production costs.

[0013] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. The embodiments of this application will provide a detailed description and understanding of the application. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1. Upper die; 2. Lower die; 3. Punch hole one; 4. Punch hole two; 5. Stepped punch groove; 6. Punch rod; 7. Punch block; 8. Connecting block; 9. Stroke groove; 10. Sealing block; 11. Optical axis; 12. Return spring one; 13. Screw; 14. Limiting plate; 15. Return spring two; 16. Limiting block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] The traditional processing of complex port structures on existing server chassis requires multiple steps using different stamping dies and the coordinated operation of multiple stamping machines. During processing, movement of the stamped sheet metal can easily cause port deviations, resulting in a mismatch between the final formed port and the actual port, affecting product quality and production efficiency.

[0018] In this regard, such as Figure 1 As shown, this application proposes a processing mold for complex structure panels of chassis ports, including an upper mold 1 and a lower mold 2 that cooperate with each other. The lower mold 2 is provided with a first punch 3 and a second punch 4. The first punch 3 is arranged symmetrically with the second punch 4, and the second punch 4 is arranged as a through slot. The lower mold 2 is provided with a stepped punch groove 5 corresponding to the edge of the second punch 4. The upper mold 1 is provided with a punch ring that cooperates with the stepped punch groove 5 on one side corresponding to the lower mold 2. The upper mold 1 is provided with two punch rods 6 that are respectively arranged to cooperate with the first punch 3, and a punch block 7 that cooperates with the second punch 4. The upper ends of the punch rods 6 and the punch block 7 extend out of the upper mold. The upper side of the mold 1 is provided with a connecting block 8, which is fixedly connected to two punch rods 6 and a punch block 7. The upper mold 1 is connected to one punching end of the stamping machine, and the connecting block 8 is connected to the other punching end of the stamping machine. During use, the punching action of the punching end connected to the connecting block 8 is later than that of the punching end connected to the upper mold 1. When processing the chassis sheet metal, the stamping machine first pushes the upper mold 1 down, so that the punch ring forms a punching indentation on the sheet metal at the stepped punch groove 5. Then the stamping machine pushes the connecting block 8 down, so that the punch rods 6 and the punch block 7 perform punching operations on punch hole 3 and punch hole 4, so as to form a complete server chassis port.

[0019] For ease of understanding, the following explains some key terms in this embodiment: Upper die 1 and lower die 2: Upper die 1 and lower die 2 are the core components of the mold. They work together to stamp or punch the sheet metal material placed between them through relative movement. Upper die 1 is usually mounted on the slide of the stamping machine, while lower die 2 is fixed to the worktable of the stamping machine.

[0020] Punch 3 and Punch 4: Punch 3 and Punch 4 are holes on the lower die 2 used to form specific shapes for the chassis ports. Punch 3 is typically used to form smaller, symmetrically distributed holes, while Punch 4 is used to form longer through-slot structures.

[0021] Stepped groove 5: Stepped groove 5 is a groove with a stepped cross-section set on the lower die 2 corresponding to the edge of the second punch 4. Its function is to cooperate with the punch ring on the upper die 1 to pre-punch the sheet metal material before punching to form a recessed structure with a certain depth.

[0022] Punching ring: The punching ring is a ring or irregular structure that fits the stepped punching groove 5 of the upper die 1 and the lower die 2. It is used to locally compress the sheet metal material during the first stage of stamping to form a preset stamping pit.

[0023] Punch 6 and punch 7: Punch 6 and punch 7 are components in the upper die 1 used for the actual punching operation. Punch 6 is typically used to punch smaller holes, while punch 7 is used to punch larger or irregularly shaped through slots. They pass through the sheet metal material during the second-stage stamping process to form the final port shape.

[0024] Connecting Block 8: Connecting Block 8 is a component that connects the upper ends of punch rod 6 and punch block 7. Its function is to integrate multiple punch rods 6 and punch blocks 7 into a whole and connect it to the second punching end of the press so as to synchronously drive these punching components to perform operations under a specific timing sequence.

[0025] Stamping press: A stamping press is a device that applies pressure to a die to perform processes such as stamping, punching, and bending on materials. In this embodiment, the stamping press has two independent stamping ends, enabling step-by-step stamping operations.

[0026] Stamping recess: A stamping recess is a localized depression structure formed on sheet metal material by stamping. It is usually used to provide positioning or pre-forming for subsequent punching operations.

[0027] Punching operation: Punching operation refers to the process of penetrating sheet metal material with a punch 6 or punch block 7 to form the required holes or through slots on the sheet metal.

[0028] The machining mold in this embodiment includes an upper mold 1 and a lower mold 2 that cooperate with each other. The upper mold 1 and the lower mold 2 can cooperate through guide pillars provided on the lower mold 2 and guide sleeves provided on the upper mold 1 to ensure the centering accuracy of the mold during operation.

[0029] The lower die 2 is provided with punch 3 and punch 4. Punch 3 can be round or square, and is usually used to form smaller port features. Punch 4 can be rectangular or irregularly shaped through slots, and is used to form longer port structures. Punch 3 can be arranged symmetrically with reference to punch 4. These punches can be formed directly on the body of the lower die 2 by machining.

[0030] The lower die 2 has a stepped groove 5 on its edge corresponding to the second punch 4. The stepped groove 5 can be formed on the surface of the lower die 2 by milling or grinding, and its depth and shape match the expected stamping recess.

[0031] The upper die 1 has a punch ring on one side corresponding to the lower die 2, which mates with the stepped punch groove 5. The punch ring can be a separate component, fixed to the lower surface of the upper die 1 by bolts or pins, and its shape corresponds to the inner shape of the stepped punch groove 5 to ensure that the recess can be accurately formed during the stamping process.

[0032] The upper die 1 is equipped with two punch rods 6 that mate with punch hole 3, and a punch block 7 that mates with punch hole 4. The punch rods 6 and punch block 7 can be installed inside the upper die 1 by press-fitting or threaded connection. The lower end face of the punch rod 6 and the lower end face of the punch block 7 can be flush with the lower end face of the upper die 1 or slightly protrude to facilitate subsequent punching operations.

[0033] The upper ends of the punch 6 and punch block 7 extend out of the upper side of the upper die 1 and are provided with connecting blocks 8. The connecting blocks 8 can be a plate-like structure, which is fixedly connected to the upper ends of the punch 6 and punch block 7 by welding, screws or pins, thereby integrating these punching components into a whole. The connecting blocks 8 can be simply placed above the upper die 1 and directly contacted by the stamping end of the stamping machine.

[0034] The upper die 1 is connected to one stamping end of the stamping press, and the connecting block 8 is connected to the other stamping end of the stamping press. The upper die 1 can directly contact the first stamping end of the stamping press via its upper surface, or it can be connected via a connecting plate. The connecting block 8 can also directly contact the second stamping end of the stamping press via its upper surface, or it can be connected via a connecting block. The stamping press needs to have two independent, separately controllable stamping drive mechanisms.

[0035] During use, the stamping action of the stamping end connected to the connecting block 8 is later than that of the stamping end connected to the upper die 1. The stamping machine sets the action sequence of the two stamping ends through its internal control system to ensure that the stamping end driving the upper die 1 completes the pressing action first, and then the stamping end driving the connecting block 8 performs the pressing action.

[0036] When processing the sheet metal chassis, the press first pushes the upper die 1 downwards, causing the punch ring to form a stamping recess on the sheet metal at the stepped punch groove 5. Specifically, the sheet metal chassis to be processed is placed on the lower die 2, and the first stamping end of the press drives the upper die 1 to move downwards as a whole. At this time, the punch ring contacts the stepped punch groove 5 of the lower die 2, locally compressing the sheet metal material to form the preset stamping recess. Then, the press pushes the connecting block 8 downwards, causing the punch rod 6 and punch block 7 to perform punching operations at punch hole 3 and punch hole 4. Subsequently, the second stamping end of the press drives the connecting block 8 downwards, and the connecting block 8 drives the punch rod 6 and punch block 7 to penetrate the sheet metal material with the formed recess, completing the final punching operation and forming a complete server chassis port.

[0037] The processing mold in this embodiment integrates the stamping of recesses and punching operations into a single mold and adopts a step-by-step stamping method, effectively avoiding the port deviation problem caused by sheet metal movement in traditional multi-mold, multi-process processing. Therefore, the complex structure processing of server chassis ports can be completed in one go, improving processing accuracy and production efficiency, and ensuring the matching of the final formed port with the actual port.

[0038] In some embodiments described above in this application, a processing mold for complex structure panels of chassis ports is proposed, which completes the stamping of recesses and holes in two stages through the coordinated action of the upper mold 1 and the connecting block 8. However, in actual operation, the relative movement between the connecting block 8 and the upper mold 1 during the stamping process may have insufficient stability, especially when performing precise positioning and punching operations. The fitting accuracy and stability between the connecting block 8 and the upper mold 1 are crucial to the final processing quality.

[0039] In this regard, this application further proposes that a travel groove 9 be provided on the upper side of the upper mold 1 corresponding to the connecting block 8, and the connecting block 8 is slidably disposed within the travel groove 9. Specifically, the travel groove 9 is a groove structure with a certain depth and length opened on the surface of the component, and its main function is to provide guidance and limitation for another component, enabling it to slide or move along a preset path. In this embodiment, the travel groove 9 is provided on the upper side of the upper mold 1, and its position corresponds to the connecting block 8, providing the connecting block 8 with a clear movement trajectory and spatial limitation. The shape of the travel groove 9 can be designed as rectangular, U-shaped, or dovetail groove according to actual needs to provide different degrees of guiding accuracy and stability. For example, a rectangular groove can be used with a rectangular cross-section connecting block 8, or a dovetail groove can be used with a dovetail cross-section connecting block 8 to provide a tighter fit and stronger anti-overturning capability. The depth and width of the travel groove 9 should ensure that the connecting block 8 can slide freely inside it, while not generating excessive gaps that would cause shaking. The connecting block 8 is placed inside the aforementioned travel groove 9 and is designed to slide relative to it within the travel groove 9. This sliding arrangement ensures that the connecting block 8 moves precisely downwards along the guide path provided by the stroke groove 9 during the stamping process, especially when the press pushes the connecting block 8 downwards for punching operations. To achieve smooth sliding, the contact surfaces of the connecting block 8 and the stroke groove 9 can be precision machined, such as ground or polished, to reduce friction. Furthermore, a lubricant can be applied between the contact surfaces, or a sliding bearing or guide bushing can be installed between the connecting block 8 and the stroke groove 9 to further improve the smoothness and wear resistance of the sliding, thereby ensuring the punching accuracy of the punch 6 and the punch block 7.

[0040] Through the above technical solution, the stroke groove 9 provides a physical constraint and guide for the connecting block 8, restricting its degree of freedom in the horizontal direction and allowing it to move precisely relative to the upper die 1 only in the vertical direction (i.e., the stamping direction). This effectively solves the problem of lateral swaying or deviation that may occur in the connecting block 8 during the stamping process, ensuring that the connecting block 8 can slide stably and accurately relative to the upper die 1 along a preset vertical path when pushed down by the stamping machine. This stable cooperation ensures that the punch 6 and the punch block 7 can accurately align with the punch holes 3 and 4 on the sheet metal for punching operations, thereby significantly improving the punching accuracy and processing quality, avoiding punching deviations or scrap caused by the instability of the connecting block 8, and thus improving the reliability and service life of the entire processing die.

[0041] In some of the embodiments described above in this application, it is proposed that the connecting block 8 can be stably engaged with the upper die 1 by setting the stroke groove 9. However, in actual operation, how to ensure that the lower end face of the upper die 1 is precisely flush with the lower end of the punch 6 and the lower end of the punch block 7 in the initial state, and how to achieve precise step-by-step pushing of the upper die 1 and the connecting block 8 by the press to ensure the sequence and accuracy of the stamping of the recess and punching operation are still problems that need to be further solved.

[0042] In response, this application further proposes that the upper opening of the aforementioned stroke groove 9 is provided with a sealing block 10 connected to the upper mold 1. A through hole is provided at the center of the sealing block 10. One stamping end of the stamping machine is in contact with the sealing block 10, and the other stamping end of the stamping machine extends into the through hole and is in contact with the connecting block 8. By setting the sealing block 10, the lower end face of the upper mold 1 can be kept flush with the lower end of the punch rod 6 and the lower end of the punch block 7. When in use, when the upper mold 1 is moved down by the sealing block 10, the connecting block 8 can be moved down simultaneously. After the complete stamping of the recess, the stamping machine can push the connecting block 8 down through the through hole on the sealing block 10 and perform punching operations on the sheet metal.

[0043] Specifically, the sealing block 10 is a structural component fixed above the upper die 1. Its main function is to close the upper opening of the stroke groove 9 and provide a stable contact surface for the stamping machine. The sealing block 10 can be integrally formed with the upper die 1, or firmly connected to the upper die 1 by bolts, welding, or other methods to ensure that it will not loosen or shift during the stamping process. The size and shape of the sealing block 10 should precisely match the opening of the stroke groove 9 to achieve effective closure and structural stability.

[0044] A through-hole is a through-hole located at the center of the sealing block 10, with its axis aligned with the movement trajectory of the connecting block 8. This through-hole is designed to allow the other stamping end of the press to pass through the sealing block 10, directly contacting and pushing the connecting block 8. The inner diameter of the through-hole should be slightly larger than the maximum outer diameter of the other stamping end of the press to ensure smooth passage while reducing friction and wear. The inner wall of the through-hole can be finely machined to improve its surface finish.

[0045] One of the stamping ends of the press, typically the main punch, has its lower end face in contact with the top surface of the sealing block 10. This abutting connection allows the press to transmit stamping force to the upper die 1 through the sealing block 10, thereby driving the upper die 1 to move downward. The stamping end of the press can be designed as a flat head or have a specific shape to ensure stable and uniform contact with the top of the sealing block 10, avoiding localized stress concentration.

[0046] The other punching end of the press, typically an auxiliary punch or internal punch, is designed to pass through the through hole of the sealing block 10. After one punching end of the press pushes the upper die 1 downward and completes the first stage of punching, the other punching end extends into the through hole and directly contacts the top surface of the connecting block 8. In this way, the press can independently apply a thrust to the connecting block 8, driving it to move downward relative to the upper die 1, thereby completing the subsequent punching operation.

[0047] The structural design and installation position of the sealing block 10 precisely define the highest position of the connecting block 8 in the initial state of the mold. When the connecting block 8 is in its highest position, the lower end faces of the punch 6 and punch block 7 connected to it can remain on the same horizontal line as the lower end face of the upper die 1. This flush state ensures the consistency of the starting position of all stamping parts before the stamping operation begins, laying the foundation for subsequent precise stamping of recesses and holes.

[0048] This description illustrates the two-stage stamping process of the mold in actual operation. In the first stage, one stamping end of the press pushes the sealing block 10, which in turn drives the upper mold 1 to move downwards as a whole. Since the connecting block 8 is in the stroke groove 9 and its initial position is flush with the upper mold 1, in this stage, the connecting block 8 moves downwards synchronously with the upper mold 1 until the punch ring completes the stamping of the recess in the sheet metal. After the recess is stamped, the press applies a pushing force directly to the connecting block 8 through the through hole of the sealing block 10 via its other stamping end. At this time, the connecting block 8 begins to move downwards independently relative to the upper mold 1, driving the punch 6 and the punch block 7 to perform precise punching operations on the area where the recess has been pre-formed.

[0049] Through the above technical solution, this application effectively solves the problems of precise alignment of the initial position of stamping parts and step-by-step control of stamping actions in the two-stage stamping process. The setting of the sealing block 10 not only provides a stable contact point for the stamping machine to push the upper die 1, but more importantly, it can accurately keep the lower end face of the upper die 1 flush with the lower end of the punch 6 and the lower end of the punch block 7 in the initial state of the die, thereby ensuring the starting position accuracy of the stamping recess and subsequent punching operations. In addition, the through hole design in the center of the sealing block 10 cleverly realizes the step-by-step pushing of the upper die 1 and the connecting block 8 by the stamping machine. In the first stage, the stamping machine drives the upper die 1 to move down through the sealing block 10 to complete the stamping recess; subsequently, the other stamping end of the stamping machine directly pushes the connecting block 8 through the through hole to complete the punching operation. This precise mechanical structure and step-by-step control mechanism ensures the sequence and accuracy of the stamping recess and punching operations, significantly improves the processing accuracy and production efficiency of complex structure panels, and avoids processing defects caused by misalignment of stamping parts or improper timing of actions.

[0050] In some embodiments described above in this application, a processing mold for complex structure panels of chassis ports is proposed. Through the cooperation of the upper mold 1 and the lower mold 2, and the coordinated action of the punch 6, punch block 7, and punch ring, stamping recesses and holes in sheet metal is achieved. However, in actual processing, since the upper mold 1, connecting block 8, punch 6, and punch block 7 need to be precisely aligned with the lower mold 2 during stamping and punching operations, a lack of effective guiding and positioning mechanisms may lead to relative displacement or wobbling between the components, thereby affecting processing accuracy and product quality, and may even cause wear or damage to the mold.

[0051] To address this, this application further proposes that multiple optical shafts 11 be provided on the lower mold 2, all of which are slidably connected to the upper mold 1 and the connecting block 8. These optical shafts 11 are typically made of high-strength, high-hardness precision steel, with finely ground and hardened surfaces to ensure excellent straightness and surface finish. The main function of the optical shafts 11 is to act as guide elements for linear motion, providing stable support and precise motion trajectories for moving parts within the mold. Their number and layout are optimized based on the overall dimensions and structural characteristics of the mold, as well as the required guiding accuracy. For example, they can be symmetrically distributed at the four corners or multiple key locations of the mold to provide uniform and reliable guiding force. All optical shafts 11 are slidably connected to the upper mold 1 and the connecting block 8. This means that both the upper mold 1 and the connecting block 8 have precision guide holes matching the diameter of the optical shafts 11. The inner walls of these guide holes are typically precision machined to ensure a tight fit and low-friction sliding with the optical shafts 11. In practical applications, to further improve guiding accuracy and extend service life, linear bearings or self-lubricating guide sleeves can be embedded within these guide holes. Through this through-sliding arrangement, the optical axis 11 effectively constrains the movement of the upper die 1 and the connecting block 8, ensuring they can only reciprocate linearly along the axial direction of the optical axis 11, thereby eliminating or significantly reducing the possibility of lateral displacement and tilting. This optical axis 11 arrangement provides precise matching between the upper die 1, the connecting block 8, the punch 6, and the punch 7 and the lower die 2. Specifically, since the punch 6 and the punch 7 are fixedly connected to the connecting block 8, and the punch ring is mounted on the upper die 1, when the upper die 1 and the connecting block 8 move precisely linearly along the optical axis 11, the lower end faces of the punch ring, the punch 6, and the punch 7 can always maintain precise alignment with the stepped groove 5, the first punch 3, and the second punch 4 on the lower die 2. This ensures that throughout the stamping and punching process, the stamping components maintain a predetermined relative positional relationship with their corresponding structures on the lower die 2, avoiding processing errors caused by component wobbling or tilting.

[0052] Through the above technical solution, multiple optical axes 11 are set on the lower die 2, and all optical axes 11 are slidably connected to the upper die 1 and the connecting block 8. This effectively solves the problems of inaccurate component alignment and insufficient stability that may occur during the stamping and punching process. As high-precision guiding elements, the optical axes 11 ensure smooth and precise linear movement of the upper die 1 and the connecting block 8 in the vertical direction. This guarantees that the punch ring on the upper die 1 and the stepped punch groove 5 on the lower die 2, as well as the punch rod 6 and punch block 7 on the connecting block 8 and the punch holes 3 and 4 on the lower die 2, always maintain a precise alignment. This greatly improves the accuracy and stability of the stamping and punching operations, avoiding processing defects caused by lateral displacement or tilting of die components, such as punch position deviation, irregular shape of the recess, or burrs. At the same time, precise guidance also reduces uneven wear between die components, extends the service life of the die, and ensures the integrity and quality of the final server chassis port.

[0053] In some embodiments described above, a processing mold for complex structure panels of chassis ports is proposed. This mold utilizes a stamping press to push the upper mold 1 and connecting block 8 in stages, achieving a complex processing procedure of first stamping recesses and then punching holes. To ensure precise matching between the upper mold 1, connecting block 8, punch rod 6, and punch block 7 and the lower mold 2, the lower mold 2 is equipped with multiple optical shafts 11, all of which are slidably connected to the upper mold 1 and connecting block 8. However, after the punching operation is completed, the connecting block 8, punch rod 6, and punch block 7 may not automatically and stably return to their initial positions promptly and stably after the stamping press releases its force. This could lead to delayed mold reset, affecting subsequent processing efficiency, and even causing interference or wear between mold components due to incomplete reset.

[0054] To address this, this application further proposes a return spring 12 positioned between the connecting block 8 and the upper die 1, corresponding to the optical axis 11. The return spring 12 is an elastic element whose main function is to store energy after compression or tension and release it upon release of the external force, thereby restoring the connected components to their original positions. In this embodiment, the return spring 12 is typically a helical compression spring, which has advantages such as simple structure, stable performance, and long service life. Its elastic coefficient and preload can be designed and selected based on the weight of the connecting block 8, the punch 6, and the punch 7, as well as the required reset speed, to ensure sufficient restoring force is provided after the press releases the pushing force on the connecting block 8, allowing the connecting block 8, the punch 6, and the punch 7 to move upward quickly and smoothly back to their initial standby positions. The return spring 12 is positioned between the connecting block 8 and the upper die 1, and its position corresponds to the optical axis 11. Specifically, the return spring 12 can be arranged around or along the direction of the optical axis 11. This arrangement ensures that the return spring 12, while providing the return force, can also guide the connecting block 8, punch 6, and punch 7 along the optical axis 11, maintaining a stable movement trajectory during the return process and preventing skewing or jamming. For example, one or more return springs 12 can be arranged around the optical axis 11 between the lower surface of the upper die 1 and the upper surface of the connecting block 8. When the connecting block 8 is pushed downward by the press, the return spring 12 is compressed, storing energy; when the press is released, the return spring 12 extends, pushing the connecting block 8 upward to return to its original position.

[0055] By employing the aforementioned technical solution, a return spring 12 is installed between the connecting block 8 and the upper die 1 at the optical axis 11. This application effectively solves the problem that the connecting block 8, punch 6, and punch 7 cannot automatically and stably reset in a timely manner after the punching operation is completed. When the press finishes pushing the connecting block 8 and releases the force, the compressed return spring 12 immediately releases its stored elastic potential energy, generating an upward thrust, thereby driving the connecting block 8 and the punch 6 and punch 7 fixedly connected to it to move upward. Since the return spring 12 is set along the optical axis 11, the optical axis 11 can provide precise guidance for the reset of the connecting block 8, ensuring that the connecting block 8 slides smoothly along a predetermined path during the reset process, avoiding component interference or wear caused by uneven reset or skew. This automatic and precise reset mechanism significantly improves the reset efficiency and stability of the die, reduces the need for manual intervention, ensures the reliability of the die in continuous processing, and helps extend the service life of the die, thereby improving overall processing efficiency and product quality.

[0056] In some embodiments described above in this application, a processing mold for complex structure panels of chassis ports is proposed, which achieves sheet metal processing through the cooperation of upper mold 1 and lower mold 2 and step-by-step stamping. However, in the actual stamping process, while the upper mold 1 is subjected to the stamping force, it may wobble or shift due to uneven force or lateral force, thereby affecting the stamping accuracy and processing quality, and may even lead to wear or damage to the mold components.

[0057] In this regard, this application further proposes that multiple screws 13 are provided on the lower mold 2 of the above-mentioned processing mold, and a limiting plate 14 is provided on the screws 13. The center of the limiting plate 14 is provided with a sliding hole that slides with the upper mold 1. Through the cooperation of the limiting plate 14 and the screws 13 and their matching with the upper mold 1, the structural stability of the upper mold 1 can be enhanced.

[0058] Specifically, the multiple screws 13 mounted on the lower die 2 serve to fix and support the limiting plate 14. These screws 13 are typically mounted perpendicular to the plane of the lower die 2 and their height can be adjusted as needed to accommodate sheet metal or molds of different thicknesses. The screws 13 are generally made of high-strength steel to ensure they can withstand significant impact forces during stamping without deformation. The limiting plate 14 mounted on the screws 13 is a plate-like structure that primarily provides lateral guidance and limiting support for the upper die 1. The limiting plate 14 typically has a certain thickness and rigidity to resist lateral forces generated during stamping. A sliding hole is located at the center of the limiting plate 14, which is a hole on the limiting plate 14 designed to accommodate the upper die 1 and allow it to slide vertically within it. The shape and size of the sliding hole should match the outer shape of the upper mold 1, but with an appropriate clearance to ensure that the upper mold 1 can slide smoothly up and down while effectively limiting its lateral displacement. The inner wall of the sliding hole can be precision machined, such as by grinding or polishing, to reduce frictional resistance, and can be coated with lubricant to further improve the smoothness of the sliding of the upper mold 1.

[0059] Through the above technical solution, multiple screws 13 are set on the lower die 2, and a limiting plate 14 is installed on the screws 13. The limiting plate 14 has a sliding hole at its center that slides with the upper die 1, realizing effective guidance and limiting of the upper die 1. When the press pushes the upper die 1 downward to perform the stamping operation, the upper die 1 can only move vertically under the constraint of the sliding hole, and its lateral displacement is precisely controlled by the limiting plate 14. This matching setting significantly enhances the structural stability of the upper die 1 during the stamping process, effectively avoiding the shaking or displacement of the upper die 1 caused by uneven force or lateral force, thereby ensuring the stamping accuracy and processing quality. In addition, the combination of multiple screws 13 and limiting plate 14 provides a robust support structure, further improving the overall reliability and service life of the mold.

[0060] In some embodiments of this application, a machining mold for complex structure panels of chassis ports is proposed, comprising an upper mold 1 and a lower mold 2 that cooperate with each other. The lower mold 2 is provided with multiple screws 13, and each screw 13 is provided with a limiting plate 14. The limiting plate 14 has a sliding hole at its center that slides with the upper mold 1. Through the cooperation of the limiting plate 14 and the screws 13, and their matching with the upper mold 1, the structural stability of the upper mold 1 can be enhanced. However, after machining is completed, the upper mold 1 may not automatically and efficiently return to its initial position, which may affect the efficiency of continuous machining and may require additional reset operations.

[0061] To address this, this application further proposes the provision of multiple return springs 15 between the upper die 1 and the limiting plate 14. Each return spring 15 is an elastic element whose function is to store energy through its own deformation after being compressed or stretched, and to release this energy upon the removal of the external force, thereby restoring the connected component to its original position. In this application, these return springs 15 can be in the form of helical compression springs, disc springs, or gas springs. They are typically arranged at specific locations between the upper die 1 and the limiting plate 14, for example, evenly distributed around the contact surfaces of the two, to ensure uniform and stable force distribution during compression and rebound. The number and stiffness of the return springs 15 are selected and optimized based on the weight of the upper die 1 and the required restoring force to ensure reliable return of the upper die 1. When the press pushes the upper die 1 downwards for processing, the upper die 1 moves downwards, simultaneously compressing the return springs 15 positioned between it and the limiting plate 14. The return springs 15 store elastic potential energy during this process. Once processing is complete, as the press releases the pushing force on the upper die 1 and returns upward, the compressed return spring 15 releases its stored energy, generating an upward thrust that drives the upper die 1 to move upward. This upward movement continues until the return spring 15 is fully extended or the upper die 1 reaches a preset initial stop position, such as the position defined by the mechanical limiting structure.

[0062] Through the above technical solution, multiple return springs 15 are set between the upper die 1 and the limiting plate 14. When the stamping press releases the pushing force on the upper die 1 after processing, the compressed return springs 15 can release their stored elastic potential energy, generating an upward restoring force, thereby driving the upper die 1 to automatically and smoothly return to its initial position. This mechanism effectively solves the problem that the upper die 1 may not be able to automatically return after processing, significantly improving the automation level of the processing mold and the efficiency of continuous processing. In addition, the setting of the return springs 15 and the enhancement effect of the limiting plate 14 on the structural stability of the upper die 1 work together to not only ensure the precise guidance and stability of the upper die 1 during processing, but also ensure its rapid and reliable return after the processing cycle, thereby optimizing the smoothness of the entire processing flow and production efficiency.

[0063] In some embodiments described above, the structural stability of the upper die 1 is enhanced by the cooperation of the screw 13 and the limiting plate 14, and the upper die 1 is restored to its initial position by the return spring 15. However, in actual stamping operations, especially during high-speed or high-strength stamping, the upper die 1 may still experience unexpected displacement due to uneven force or vibration, and there is even a risk of it dislodging from the cooperation area of ​​the limiting plate 14, thereby affecting processing accuracy and equipment operating safety.

[0064] In this regard, this application further proposes that a limiting block 16 is provided on the side wall of the upper die 1 to cooperate with the limiting plate 14. The limiting block 16 is a structural component fixed to the side wall of the upper die 1, and its shape and size are designed to physically contact or engage with a specific area of ​​the limiting plate 14. For example, the limiting block 16 can be a protruding block or an edge with a specific contour. When the upper die 1 slides within the sliding hole of the limiting plate 14, the limiting block 16 can cooperate with the inner edge of the limiting plate 14 or a pre-set groove. This cooperation aims to provide a mechanical stop to limit excessive movement of the upper die 1 in the vertical or horizontal direction. The limiting block 16 can be connected to the side wall of the upper die 1 by bolting, welding, or integral molding. Its material is typically a high-strength, wear-resistant metal to ensure that it can withstand the impact force generated during the stamping process during long-term use.

[0065] By providing a limiting block 16 on the side wall of the upper die 1 that cooperates with the limiting plate 14, the limiting block 16 can form an effective mechanical constraint with the limiting plate 14. When the upper die 1 is subjected to impact or lateral force during the stamping process, the limiting block 16 will abut against the limiting plate 14, thereby physically preventing the upper die 1 from displacing beyond a predetermined range. This not only further enhances the structural stability of the upper die 1 under the cooperation of the screw 13 and the limiting plate 14, but more importantly, it provides a reliable anti-detachment mechanism, ensuring that the upper die 1 always remains in the correct working position, avoiding the decrease in processing accuracy, die damage, or even safety accidents caused by accidental detachment. Therefore, this solution significantly improves the operational reliability and safety of the die, ensuring the stability and accuracy of complex structure panel processing.

[0066] The following example will provide a more detailed explanation of the above technical solution: In the production process of server chassis panels, a complex port structure containing recesses and through holes needs to be formed to adapt to specific server modules. Traditional methods usually require using one set of molds to stamp the recesses first, and then transferring the sheet metal to another set of molds to punch the holes. This not only increases the number of processes, but also easily causes port position deviations due to sheet metal movement, ultimately affecting the matching accuracy between the port and the module.

[0067] This machining mold provides a solution. First, the sheet metal chassis to be machined is placed on the lower mold 2. The lower mold 2 is pre-set with punch holes 3 and 4, where punch holes 3 are arranged symmetrically with punch holes 4, and punch holes 4 are arranged as through slots. Stepped grooves 5 are also provided on the lower mold 2 corresponding to the edges of punch holes 4. To ensure machining accuracy and mold stability, multiple optical shafts 11 are provided on the lower mold 2, which pass through the upper mold 1 and the connecting block 8, providing precise guidance. At the same time, multiple screws 13 are also provided on the lower mold 2, and the screws 13 have limit plates 14. The center of the limit plate 14 is provided with a sliding hole that slides with the upper mold 1 to enhance the structural stability of the upper mold 1. Limit blocks 16 are provided on the side wall of the upper mold 1, which cooperate with the limit plate 14 to prevent the upper mold 1 from falling off during use.

[0068] The upper die 1 is connected to one stamping end of the stamping machine. A stroke groove 9 is provided on the upper side of the upper die 1 corresponding to the connecting block 8, and the connecting block 8 is slidably positioned within the stroke groove 9. A sealing block 10, connected to the upper die 1, is provided at the upper opening of the stroke groove 9, and a through hole is provided at the center of the sealing block 10. One stamping end of the stamping machine abuts against the sealing block 10, and the other stamping end of the stamping machine extends into the through hole and abuts against the connecting block 8. The upper die 1 contains two punch rods 6 corresponding to punch holes 1 and 3, and a punch block 7 corresponding to punch holes 2 and 4. The upper ends of the punch rods 6 and punch block 7 extend beyond the upper side of the upper die 1 and are fixedly connected to the connecting block 8. The sealing block 10 ensures that the lower end face of the upper die 1 is flush with the lower ends of the punch rods 6 and punch block 7.

[0069] The processing is divided into two stages: Phase 1: Stamping the Dent. The stamping machine first pushes the stamping end connected to the sealing block 10 downwards. Since the sealing block 10 is connected to the upper die 1, and the lower ends of the punch 6 and punch 7 are flush with the lower end of the upper die 1, the upper die 1 moves downwards as a whole. The punch ring on one side of the upper die 1, corresponding to the lower die 2, cooperates with the stepped punch groove 5 on the lower die 2 during the downward movement, forming a stamping dent in the sheet metal. In this phase, the punch 6 and punch 7 have not yet contacted the sheet metal because the stamping end connected to the connecting block 8 moves later than the stamping end connected to the upper die 1.

[0070] Phase Two: Punching Operation. After the punching recess is formed, the punching machine pushes the punching end connected to the connecting block 8 downwards. At this time, the punching end directly pushes the connecting block 8 downwards through the through hole on the sealing block 10. The connecting block 8 drives the punch rod 6 and punch block 7, which are fixedly connected to it, to continue moving downwards, so that the punch rod 6 punches the hole at punch hole 3 and the punch block 7 punches the hole at punch hole 4. Finally, the required through hole is precisely formed in the previously formed punching recess, thus forming a complete server chassis port.

[0071] Compared with existing technologies, this processing die integrates the stamping and punching operations into a single die and employs a two-stage sequential stamping method, avoiding sheet metal movement between different processes. This significantly reduces end deviations caused by sheet metal repositioning, ensuring a high degree of matching between the stamped end and the actual end. The placement of the optical axis 11, screw 13, and limiting plate 14 further guarantees the precise alignment and structural stability of the die throughout the entire processing.

[0072] After processing, the first reset spring 12, located between the connecting block 8 and the upper die 1 at the optical axis 11, causes the connecting block 8 to drive the punch 6 and punch 7 back to their initial positions. At the same time, the second reset spring 15, located between the upper die 1 and the limiting plate 14, causes the upper die 1 to return to its initial position, preparing it for the next processing.

[0073] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

[0074] 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 machining mold for complex structure panels of chassis ports, characterized in that: The device includes an upper die (1) and a lower die (2) that cooperate with each other. The lower die (2) is provided with a first punch (3) and a second punch (4). The first punch (3) has two holes symmetrically arranged with the second punch (4). The second punch (4) is a through slot. The lower die (2) is provided with a stepped punch groove (5) corresponding to the edge of the second punch (4). The upper die (1) is provided with a punch ring that cooperates with the stepped punch groove (5) on one side corresponding to the lower die (2). (1) There are two punch rods (6) that are respectively configured to cooperate with punch hole one (3) and a punch block (7) that cooperates with punch hole two (4). The upper ends of the punch rods (6) and the punch block (7) extend out of the upper side of the upper die (1) and are provided with connecting blocks (8). The connecting blocks (8) are fixedly connected to the two punch rods (6) and the punch block (7). The upper die (1) is connected to one stamping end of the press, and the connecting blocks (8) are connected to the other stamping end of the press.

2. The processing mold for complex structure panels of chassis ports according to claim 1, characterized in that: The upper side of the upper mold (1) is provided with a stroke groove (9) corresponding to the connecting block (8), and the connecting block (8) is slidably placed in the stroke groove (9).

3. The processing mold for complex structure panels of chassis ports according to claim 2, characterized in that: The upper opening of the stroke groove (9) is provided with a sealing block (10) connected to the upper mold (1). A through hole is provided at the center of the sealing block (10). One stamping end of the press is in contact with the sealing block (10), and the other stamping end of the press extends into the through hole and is in contact with the connecting block (8).

4. The processing mold for complex structure panels of chassis ports according to claim 1, characterized in that: The lower mold (2) is provided with multiple optical axes (11), and all the optical axes (11) are slidably connected to the upper mold (1) and the connecting block (8).

5. A processing mold for a complex structure panel of a chassis port according to claim 4, characterized in that: A reset spring (12) is provided between the connecting block (8) and the upper mold (1) at the optical axis (11).

6. The processing mold for complex structure panels of chassis ports according to claim 1, characterized in that: The lower mold (2) is provided with multiple screws (13), and the screws (13) are provided with a limiting plate (14). The center of the limiting plate (14) is provided with a sliding hole that slides with the upper mold (1).

7. A processing mold for complex structure panels of chassis ports according to claim 6, characterized in that: Multiple reset springs (15) are provided between the upper mold (1) and the limiting plate (14).

8. A processing mold for a complex structure panel of a chassis port according to claim 6 or 7, characterized in that: The upper mold (1) has a limiting block (16) on its side wall that cooperates with the limiting plate (14).

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