A new type of forging and stamping die

Abstract

This utility model discloses a novel forging and stamping die, relating to the field of forging and stamping technology. The utility model includes a base, with a liquid storage tank and a forging table at the top center of the base. A fixing frame and a die groove are provided on the top of the forging table. A first hydraulic cylinder is mounted on the top of the fixing frame, and an installation plate is fixed to the output end of the first hydraulic cylinder. A module is mounted on the bottom of the installation plate, and movable rods extending into the forging table are fixed on both sides of the bottom of the installation plate. This utility model uses an atomizing nozzle to atomize and spray the release agent evenly onto the module and die groove surface through a pressure differential atomization principle (the piston plate squeezes the liquid inside the piston cylinder to generate high pressure, causing the release agent to collide and break into fine droplets when sprayed at high speed through the nozzle's micro-holes). This provides a clean, lubricated die surface with stable release performance for the production of the next set of open-end wrenches, reducing the tediousness of manual operation.

Description

Technical Field

[0001] This utility model relates to the field of forging and stamping technology, specifically a new type of forging and stamping die. Background Technology

[0002] In the field of metal processing, forging and stamping are key processes for manufacturing various tools and parts, and are widely used in industries such as automobile manufacturing, aerospace, and hardware tools. In the field of hardware tool manufacturing, the forging and stamping process of open-end wrenches is one of the core production links, and its processing quality and efficiency directly affect product precision and production costs.

[0003] The existing open-end wrench requires workers to use pliers to remove it after forging and stamping. This manual operation poses safety hazards, such as improper plier operation causing the workpiece to fall and injure workers or cause burns due to the high temperature of the workpiece. In addition, frequent manual plier handling is labor-intensive, inefficient, and affects the production rhythm. Afterwards, workers use a hand spray gun to spray release agent into the module and mold groove, but the two cannot be effectively connected. The entire production process relies on manual operation, has a low degree of automation, increases labor costs, and reduces production efficiency and stability. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a new type of forging and stamping die to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel forging and stamping die includes a base, a liquid storage tank and a forging table are provided in the middle of the top of the base, a fixing frame and a die groove are provided on the top of the forging table, a first hydraulic cylinder is installed on the top of the fixing frame, and an installation plate is fixed to the output end of the first hydraulic cylinder, a module is installed on the bottom of the installation plate, and movable rods extending into the interior of the forging table are fixed on both sides of the bottom of the installation plate, a push block is fixed at the bottom end of the movable rod, a positioning rod is fixed on the upper interior of the forging table, and a spring and a connecting plate are sleeved on the outer surface of the positioning rod, and an ejector pin extending into the die groove is fixed on the top of the connecting plate;

[0006] A piston cylinder is fixed to one side of the top of the base via a mounting column. A piston rod extends through one side of the piston cylinder, and one end of the piston rod extends into the interior of the piston cylinder and is fixed with a piston plate. A second hydraulic cylinder is mounted on the other side of the top of the base via a mounting bracket. The output end of the second hydraulic cylinder is connected to a movable frame. A pusher plate is fixed to the inner side of the movable frame, and one side of the movable frame is fixed to the piston rod. An infusion pipe is connected to the back of the piston cylinder via a connecting pipe. Atomizing nozzles are installed at the top and bottom of the infusion pipe. The bottom of the piston cylinder is connected to a storage tank via a suction pipe. A guide plate is fixed to one side of the top of the forging table.

[0007] Furthermore, the infusion tube is U-shaped and fixed to the inside of the movable frame.

[0008] By adopting the above technical solution, the infusion tube adopts a "U" shaped structure and is fixed inside the movable frame. Its symmetrical layout facilitates the integration of two sets of atomizing nozzles, which can be used for targeted spraying on the top surface of the module and the side wall of the mold groove, respectively.

[0009] Furthermore, both the extraction tube and the connecting tube are equipped with one-way valves, and the connecting tube is a rubber hose.

[0010] By adopting the above technical solution, the one-way valves on the extraction pipe and connecting pipe can ensure the one-way flow of the release agent, avoid backflow and ensure delivery efficiency and stable spraying pressure; the connecting pipe is made of rubber hose, whose flexibility adapts to the reciprocating movement of the movable frame, preventing the pipeline from being damaged by mechanical movement, and improving the reliability and stability of the release agent delivery system.

[0011] Furthermore, the outer surface and back of the forging table are both fixed with sliding rods, and the movable frame slides in cooperation with the sliding rods, which are coated with a wear-resistant coating.

[0012] By adopting the above technical solution, the movable frame is guided by the double-sided slide rods to convert the thrust of the second hydraulic cylinder into a stable lateral displacement, ensuring the stability of the coordinated work of the push plate and the release agent spraying mechanism. At the same time, the wear-resistant coating on the surface of the slide rods reduces the resistance of the reciprocating motion of the movable frame, significantly reducing mechanical wear and extending the service life of the equipment.

[0013] Furthermore, a collection groove is provided on the other side of the top of the base, and the collection groove is located below the guide plate.

[0014] By adopting the above technical solution, the open-end wrench pushed by the pusher plate automatically slides down the inclined surface of the guide plate into the collection tank, which facilitates the collection of the open-end wrench.

[0015] Furthermore, a liquid collection tank is provided on the other side of the top of the forging table, and a liquid baffle is fixed on the top of the liquid collection tank.

[0016] By adopting the above technical solution, a special design is made for the working condition where the atomizing nozzle is displaced to a position misaligned with the module (to avoid interference with the mold closing area): When the movable frame moves the nozzle laterally to a non-working area on the side of the module, the excess release agent driven by the residual pressure in the piston cylinder is sprayed and directed to the collection tank through the arc-shaped guide surface of the liquid baffle, preventing the release agent from being sprayed outside the mold area due to the nozzle position displacement. This structure, through the dual design of misalignment avoidance and droplet recovery, ensures that there is no nozzle interference when the module moves down to close the mold, and also collects the excess droplets generated by the piston inertial movement during the spraying process, reducing some of the release agent loss.

[0017] Furthermore, the atomizing nozzle is provided in two sets, upper and lower, with the upper atomizing nozzle tilted towards the liquid baffle.

[0018] By adopting the above technical solution, the inclined upper nozzle can accurately project the release agent droplets onto the edge of the module and the upper area of ​​the mold cavity sidewall. At the same time, the tilt angle of the upper nozzle allows the diffused droplets that exceed the mold surface to be naturally guided to the arc-shaped guide surface of the liquid baffle, and then flow into the collection tank after being guided. The lower nozzle is responsible for the vertical spraying of the bottom of the mold cavity and the deep cavity structure. When it moves with the movable frame to a position that is misaligned with the lower mold (avoiding the mold closing interference area), the excess release agent spray generated by the inertial motion of the piston cylinder is naturally guided to the lower collection tank through the nozzle trajectory, forming a dual-path control of "precise spraying in the working area - directional recycling in the non-working area".

[0019] Furthermore, two sets of heating blocks are installed inside the lower part of the liquid storage tank.

[0020] By adopting the above technical solution, the two sets of heating blocks are embedded and attached to the bottom surface of the tank, which can keep the stored release agent at a constant temperature, so that the high viscosity release agent remains liquid and fluid, avoiding solidification or stratification caused by low ambient temperature, ensuring stable fluid resistance when the piston cylinder pumps liquid, and controlling the temperature in the safe range of 40℃-50℃ (below the flash point and decomposition temperature of the release agent) by the heating blocks, reducing the viscosity of the release agent and meeting the fluidity requirements of piston cylinder pumping and fine orifice spraying of atomizing nozzles.

[0021] Furthermore, a control panel is installed on one side of the mounting plate, and the heating block, the first hydraulic cylinder, and the second hydraulic cylinder are all electrically connected to the control panel.

[0022] By adopting the above technical solution, the staff can easily operate the first and second hydraulic cylinders, and at the same time control the temperature of the heating block.

[0023] In summary, the present invention has the following main advantages:

[0024] 1. This utility model constructs an automated workpiece ejection mechanism through the coordinated design of a movable rod, ejector pin, spring, connecting plate, positioning rod, and pushing block: During operation, the operator places the blank in the middle of the top of the mold groove. The first hydraulic cylinder drives the mounting plate to move the module and movable rod downwards. The movable rod simultaneously pushes the pushing block downwards, releasing its squeezing state on the connecting plate. Under the action of the spring reset, the connecting plate drives the ejector pin to accurately fall back to the position flush with the mold cavity, ensuring that the ejector pin does not interfere with the blank forming when the mold block is closed and stamped, thus ensuring the stamping accuracy of the open-end wrench. After stamping is completed, the first hydraulic cylinder drives the module and movable rod to move upwards and reset. When the movable rod moves to the set height, the pushing block moves upwards synchronously with the movable rod and squeezes the connecting plate, causing the connecting plate to overcome the spring resistance and drive the ejector pin upwards, automatically ejecting the formed open-end wrench from the mold groove. This structure eliminates the need for manual clamping of the high-temperature workpiece, achieving automatic demolding of the workpiece after stamping through mechanical linkage.

[0025] 2. This utility model, through the coordinated design of components such as the second hydraulic cylinder, movable frame, pusher plate, and piston cylinder, constructs an automated system integrating workpiece collection and mold release agent spraying: After the ejector pin completes the ejection of the workpiece, the second hydraulic cylinder drives the movable frame to move the pusher plate laterally, automatically pushing the open-end wrench along the guide plate to the collection tank, completely replacing the manual clamping and picking operation, further eliminating the risk of high-temperature burns; at the same time, the reciprocating motion of the movable frame synchronously drives the piston cylinder's liquid extraction and delivery actions (when moving to the right, the liquid is extracted from the storage tank through the extraction pipe). The liquid tank extracts the release agent. When the piston plate moves to the left to reset, it uses the pressure difference formed in the piston cylinder to transport the release agent to the atomizing nozzle through the connecting pipe and the liquid delivery pipe. The atomizing nozzle uses the pressure difference atomization principle (the piston plate squeezes the liquid in the piston cylinder to generate high pressure, causing the release agent to be sprayed out at high speed through the nozzle micro-holes and collide with the air to break into fine droplets) to evenly atomize and spray the release agent onto the surface of the module and mold groove. This provides a clean, lubricated mold surface with stable demolding performance for the production of the next set of open-end wrenches, reducing the tediousness of manual operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the forging table of this utility model;

[0028] Figure 3 This is a schematic diagram of the movable frame structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the mounting plate structure of this utility model;

[0030] Figure 5 This is a schematic diagram of the collection tank structure of this utility model.

[0031] Figure 6This is a schematic diagram of the infusion tube structure of this utility model.

[0032] Figure 7 This is a schematic diagram of the shielding structure of this utility model.

[0033] Figure 8 This is a schematic diagram of the cross-sectional structure of the piston cylinder of this utility model.

[0034] In the diagram: 1. Base; 2. Forging table; 3. Fixing frame; 4. First hydraulic cylinder; 5. Mounting column; 6. Module; 7. Movable rod; 8. Mold groove; 9. Guide plate; 10. Mounting frame; 11. Second hydraulic cylinder; 12. Movable frame; 13. Slide rod; 14. Mounting plate; 15. Piston cylinder; 16. Liquid storage tank; 17. Liquid collection tank; 18. Liquid baffle; 19. Push plate; 20. Liquid extraction pipe; 21. Connecting pipe; 22. Liquid delivery pipe; 23. Atomizing nozzle; 24. Piston rod; 25. Piston plate; 26. Heating block; 27. Positioning rod; 28. Spring; 29. ​​Connecting plate; 30. Ejector pin; 31. Pushing block; 32. Collection tank; 33. Control panel. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of this utility model will be described below based on its overall structure.

[0037] Example 1: A novel forging and stamping die, such as Figures 1-8 As shown, the system includes a base 1, with a liquid storage tank 16 and a forging table 2 located at the top center of the base 1. The forging table 2 has a fixing frame 3 and a mold groove 8 on its top. A first hydraulic cylinder 4 is installed on the top of the fixing frame 3, and an installation plate 14 is fixed to the output end of the first hydraulic cylinder 4. A module 6 is installed at the bottom of the installation plate 14, and movable rods 7 extending into the interior of the forging table 2 are fixed on both sides of the bottom of the installation plate 14. A push block 31 is fixed at the bottom end of the movable rod 7. A positioning rod 27 is fixed at the top inside the forging table 2, and a spring 28 and a connecting plate 29 are sleeved on the outer surface of the positioning rod 27. An ejector pin 30 extending into the mold groove 8 is fixed at the top of the connecting plate 29.

[0038] A piston cylinder 15 is fixed to one side of the top of the base 1 via a mounting post 5. A piston rod 24 passes through one side of the piston cylinder 15, and one end of the piston rod 24 extends into the interior of the piston cylinder 15 and is fixed with a piston plate 25. A second hydraulic cylinder 11 is mounted on the other side of the top of the base 1 via a mounting bracket 10. The output end of the second hydraulic cylinder 11 is connected to a movable frame 12. Slide rods 13 are fixed to the outer surface and back of the forging table 2, and the movable frame 12 slides in cooperation with the slide rods 13. The slide rods 13 are coated with a wear-resistant coating. The slide rods 13 on both sides provide linear motion guidance for the movable frame 12, converting the thrust of the second hydraulic cylinder 11 into... Stable lateral displacement ensures the stability of the coordinated operation of the pusher plate 19 and the release agent spraying mechanism. At the same time, the wear-resistant coating on the surface of the slide bar 13 reduces the resistance of the reciprocating motion of the movable frame 12, significantly reducing mechanical wear and extending the service life of the equipment. The pusher plate 19 is fixed to the inner side of the movable frame 12, and one side of the movable frame 12 is fixed to the piston rod 24. The back of the piston cylinder 15 is connected to the infusion pipe 22 through the connecting pipe 21. The top and bottom of the infusion pipe 22 are equipped with atomizing nozzles 23. The bottom of the piston cylinder 15 is connected to the storage tank 16 through the liquid extraction pipe 20. A guide plate 9 is fixed to one side of the top of the forging table 2.

[0039] See Figure 5 and Figure 6 In the above embodiment, the infusion tube 22 is U-shaped and fixed to the inside of the movable frame 12. The infusion tube 22 adopts a U-shaped structure and is fixed to the inside of the movable frame 12. Its symmetrical layout facilitates the integration of two sets of atomizing nozzles 23, which can respectively target the top surface of the module 6 and the side wall of the mold groove 8 for spraying.

[0040] See Figure 5 and Figure 6 In the above embodiments, both the extraction pipe 20 and the connecting pipe 21 are equipped with one-way valves, and the connecting pipe 21 is a rubber hose. The one-way valves on the extraction pipe 20 and the connecting pipe 21 can ensure the unidirectional flow of the release agent and avoid backflow to ensure delivery efficiency and stable spraying pressure. The connecting pipe 21 is made of rubber hose, and its flexibility adapts to the reciprocating movement of the movable frame 12, preventing the pipeline from being damaged due to mechanical movement and improving the reliability and stability of the release agent delivery system.

[0041] See Figure 1 , Figure 2 , Figure 5 and Figure 7 In the above embodiment, a collection groove 32 is provided on the other side of the top of the base 1, and the collection groove 32 is located below the guide plate 9. The open-end wrench pushed by the pusher plate 19 automatically slides down the inclined surface of the guide plate 9 into the collection groove 32, which facilitates the collection of the open-end wrench.

[0042] Example 2: To reduce the waste of release agent, Example 2 is an improvement on Example 1. (See attached document for details.) Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 8 The atomizing nozzle 23 has two sets, upper and lower, with the upper nozzle 23 inclined towards the liquid baffle 18. The inclined upper nozzle can accurately project the release agent droplets onto the edge of the module 6 and the upper area of ​​the side wall of the mold groove 8. At the same time, the tilt angle of the upper nozzle allows the diffused droplets that exceed the mold surface to be naturally guided to the arc-shaped guide surface of the liquid baffle 18, and then flow into the collection tank 17. The lower nozzle is responsible for the vertical spraying of the bottom of the mold groove 8 and the deep cavity structure. When it moves with the movable frame 12 to a position misaligned with the lower mold (avoiding the mold closing interference area), the excess release agent spray generated by the inertial motion of the piston cylinder 15 is naturally guided downward through the nozzle trajectory. The collection tank 32 forms a dual-path control system of "precise spraying in the working area - directional recycling in the non-working area". A liquid collection tank 17 is provided on the other side of the top of the forging table 2. A liquid baffle 18 is fixed to the top of the liquid collection tank 17. This system is specifically designed for situations where the atomizing nozzle 23 is displaced from the module 6 (to avoid interference with the mold closing area): when the movable frame 12 moves the nozzle laterally to the non-working area on the side of the module 6, the excess release agent sprayed by the residual pressure in the piston cylinder 15 is directed and converged into the liquid collection tank 17 via the arc-shaped guide surface of the liquid baffle 18, preventing release agent from being sprayed outside the mold due to nozzle position displacement. This structure, through the dual design of misalignment avoidance and droplet recycling, ensures no nozzle interference when the module 6 moves down to close the mold, and collects excess droplets generated by the piston's inertial movement during spraying, reducing release agent loss (some atomized release agent that cannot be sprayed onto the baffle is considered normal loss).

[0043] Example 3: To ensure the release agent can be smoothly atomized and sprayed, Example 3 is an improvement on Example 1. (See attached document for details.) Figure 2 and Figure 8 Two sets of heating blocks 26 are installed inside the lower part of the liquid storage tank 16. The two sets of heating blocks 26 are embedded and fit against the bottom surface of the tank body. They can keep the stored release agent at a constant temperature, so that the high viscosity release agent maintains liquid fluidity and avoids solidification or stratification caused by low ambient temperature. This ensures stable fluid resistance when the piston cylinder 15 pumps liquid. The temperature is controlled in the safe range of 40℃-50℃ by the heating blocks 26 (below the flash point and decomposition temperature of the release agent), reducing the viscosity of the release agent and meeting the fluidity requirements of pumping by the piston cylinder 15 and fine spraying by the atomizing nozzle 23.

[0044] See Figure 1In the above embodiment, a control panel 33 is installed on one side of the mounting plate 14, and the heating block 26, the first hydraulic cylinder 4 and the second hydraulic cylinder 11 are all electrically connected to the control panel 33, so that the operator can easily operate the first hydraulic cylinder 4 and the second hydraulic cylinder 11, and at the same time control the temperature of the heating block 26.

[0045] The implementation principle of this utility model is as follows: First, the operator places the blank on the mold groove 8 of the forging table 2. After setting the process parameters through the control panel 33, the first hydraulic cylinder 4 drives the mounting plate 14 and module 6 to move downward, closing with the mold groove 8 to form a forming cavity, completing the die-stamping of the open-end wrench. After forming, the module 6 moves upward and resets with the first hydraulic cylinder 4. The bottom end of the movable rod 7 pushes the block 31 to press against the connecting plate 29, driving the ejector pin 30 to extend from the bottom of the mold groove 8 and eject the workpiece to the top of the mold groove 8. Then, the second hydraulic cylinder 11 drives the movable frame 12 to move laterally along the slide rod 13. The pusher plate 19 pushes the open-end wrench along the guide plate 9 to the collection groove 32 on the other side of the base 1, completing the non-contact automatic collection. During the pushing (the rightward movement stage of the movable frame 12), the movable rod 19 fixedly connected to the movable frame 12... The piston rod 24 pulls the piston plate 25 to the right, creating a negative pressure inside the piston cylinder 15. The one-way valve on the liquid extraction pipe 20 automatically opens, drawing the low-viscosity release agent, which has been heated at a constant temperature (40℃-50℃) by the heating block 26, into the piston cylinder 15. When the movable frame 12 moves to the left and resets, the piston rod 24 pushes the piston plate 25 to squeeze the liquid inside the cylinder. The one-way valve on the connecting pipe 21 opens, and the high-pressure release agent is delivered to the upper and lower sets of atomizing nozzles 23 through the rubber hose and the liquid delivery pipe 22. The upper inclined nozzle precisely sprays the module 6 towards the liquid baffle 18. The diffused droplets that exceed the mold are guided by the liquid baffle 18 to the collection tank 17 for recovery. The lower horizontal nozzle vertically sprays the bottom of the mold groove 8. When the movable frame 12 moves to a position that is misaligned with the lower mold, the excess spray automatically falls into the collection tank 32.

[0046] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A novel forging and stamping die, comprising a base (1), characterized in that: The base (1) has a liquid storage tank (16) and a forging table (2) in the middle of the top. The forging table (2) has a fixed frame (3) and a mold groove (8) on the top. The fixed frame (3) has a first hydraulic cylinder (4) installed on the top. The output end of the first hydraulic cylinder (4) is fixed with a mounting plate (14). The bottom of the mounting plate (14) has a module (6) installed. The bottom sides of the mounting plate (14) have movable rods (7) extending into the interior of the forging table (2) fixed. The bottom end of the movable rod (7) is fixed with a push block (31). The interior of the forging table (2) is fixed with a positioning rod (27). The outer surface of the positioning rod (27) is sleeved with a spring (28) and a connecting plate (29). The top of the connecting plate (29) is fixed with an ejector pin (30) extending into the groove of the mold groove (8). A piston cylinder (15) is fixed to one side of the top of the base (1) by a mounting column (5). A piston rod (24) passes through one side of the piston cylinder (15), and one end of the piston rod (24) extends into the interior of the piston cylinder (15) and is fixed with a piston plate (25). A second hydraulic cylinder (11) is installed on the other side of the top of the base (1) by a mounting bracket (10). The output end of the second hydraulic cylinder (11) is connected to a movable frame (12). A pusher plate (19) is fixed on the inner side of the movable frame (12), and one side of the movable frame (12) is fixed to the piston rod (24). An infusion pipe (22) is connected to the back of the piston cylinder (15) by a connecting pipe (21). Atomizing nozzles (23) are installed at the top and bottom of the infusion pipe (22). The bottom of the piston cylinder (15) is connected to a storage tank (16) by a suction pipe (20). A guide plate (9) is fixed on one side of the top of the forging table (2).

2. The novel forging and stamping die according to claim 1, characterized in that: The infusion tube (22) is U-shaped and is fixed to the inside of the movable frame (12).

3. The novel forging and stamping die according to claim 1, characterized in that: Both the liquid extraction tube (20) and the connecting tube (21) are equipped with one-way valves, and the connecting tube (21) is a rubber hose.

4. The novel forging and stamping die according to claim 1, characterized in that: The forging table (2) has a slide rod (13) fixed on its outer surface and back, and the movable frame (12) slides in cooperation with the slide rod (13). The slide rod (13) is provided with a wear-resistant coating.

5. The novel forging and stamping die according to claim 1, characterized in that: A collection trough (32) is provided on the other side of the top of the base (1), and the collection trough (32) is located below the guide plate (9).

6. The novel forging and stamping die according to claim 1, characterized in that: A liquid collection tank (17) is provided on the other side of the top of the forging table (2), and a liquid baffle (18) is fixed on the top of the liquid collection tank (17).

7. The novel forging and stamping die according to claim 6, characterized in that: The atomizing nozzle (23) is provided in two sets, upper and lower, with the upper atomizing nozzle (23) tilted towards the liquid baffle (18).

8. The novel forging and stamping die according to claim 1, characterized in that: Two sets of heating blocks (26) are installed inside the lower part of the liquid storage tank (16).

9. The novel forging and stamping die according to claim 8, characterized in that: The control panel (33) is installed on one side of the mounting plate (14), and the heating block (26), the first hydraulic cylinder (4) and the second hydraulic cylinder (11) are all electrically connected to the control panel (33).

Images