Improved die for preventing deformation of a punched part and production process thereof

Abstract

The application discloses an improved stamping die for preventing deformation of stamping parts and relates to the technical field of stamping dies.The improved stamping die comprises a machining table, support rods are fixedly connected to the top corners of the machining table, a top plate is fixedly connected between the upper end faces of the support rods, a first hydraulic rod is fixedly connected to the top of the top plate, the output end of the first hydraulic rod is slidably penetrated through the top plate and extends to the lower side, a lower die seat is fixedly connected to the center of the top of the machining table, and a stamping hole is formed in the center of the top of the lower die seat; and a stamping assembly is fixedly connected to the output end of the first hydraulic rod.In the application, when the third hydraulic rod drives the fixed plate to press the workpiece, the pressure can be adaptively adjusted according to the deformation of the workpiece at different positions, the third hydraulic rod at the raised position applies greater pressure compared with the third hydraulic rod at the flat position, so that the workpiece can be pressed flat, and the punching position of the workpiece is in a flat state.

Description

Technical Field

[0001] This invention relates to the field of stamping die technology, specifically to an improved die for preventing deformation of stamped parts and its manufacturing process. Background Technology

[0002] A stamping die is a tool used in metal processing that changes the shape of a metal material by applying force and pressure.

[0003] In the existing technology, when performing circular plate stamping, a large flat workpiece is usually used for multi-point stamping. However, after the workpiece is repeatedly subjected to stamping force, it will cause the workpiece to warp and deform. After the workpiece is deformed and uneven, the stamping position of the workpiece will also become uneven. At this time, when stamping the workpiece, it will cause uneven force when the workpiece contacts the stamping head, which will cause the stamped workpiece to deform and affect the yield of stamping.

[0004] Therefore, we propose an improved mold and its production process for preventing deformation of stamped parts, in order to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide an improved mold for preventing deformation of stamped parts and its manufacturing process, so as to solve the problem mentioned in the background art that the workpiece is subjected to uneven force when it comes into contact with the stamping head, which causes the stamped workpiece to deform and affects the yield of stamping processing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an improved mold for preventing deformation of stamped parts, comprising: a processing table, wherein support rods are fixedly connected to the top corners of the processing table, a top plate is fixedly connected between the upper surfaces of the support rods, a first hydraulic rod is fixedly connected to the top of the top plate, the output end of the first hydraulic rod slides through the top plate and extends to the lower side, a lower mold base is fixedly connected to the center of the top of the processing table, and a stamping hole is formed at the center of the top of the lower mold base; a stamping assembly, the stamping assembly is fixedly connected to the output end of the first hydraulic rod, the stamping assembly includes a support frame, and the bottom of the support frame is fixedly connected to... The system includes: a support plate; a support assembly located under the processing table, comprising a support block and a mounting plate; a drive assembly fixedly connected to the bottom of the processing table, comprising a first base frame and two second base frames; a material ejection assembly fixedly connected to the bottom of the processing table, comprising multiple clips with air pipes disposed between the inner surfaces of the clips, the end faces of the air pipes being fixedly connected to air nozzles; and a material discharge assembly fixedly connected to the bottom of the processing table, comprising a material discharge guide plate, the outer surface of which is fixedly connected to a discharge guide plate.

[0007] Preferably, a plurality of guide rods are uniformly fixedly connected to the top of the lower mold base, and a plurality of guide holes are uniformly opened on the top of the support plate. The outer surface of the guide rods is inserted into the inner surface of the guide holes. A second hydraulic rod is fixedly connected to the center of the top of the support plate. The output end of the second hydraulic rod slides through the support plate and extends to the lower side. A connecting plate is fixedly connected to the output end of the second hydraulic rod. A punching head is fixedly connected to the bottom of the connecting plate. The punching head is matched with the position of the punching hole.

[0008] Preferably, a plurality of extension rods are uniformly fixedly connected to the bottom of the support plate, and a positioning frame is fixedly connected between the lower ends of the plurality of extension rods. A rubber pad is provided at the bottom of the positioning frame, and the connecting plate is located inside the positioning frame.

[0009] Preferably, a plurality of third hydraulic rods are uniformly fixedly connected to the top of the support plate, the output end of the third hydraulic rod slides through the support plate and extends to the lower side, and the output end of the third hydraulic rod is fixedly connected to a fixing plate, which is located outside the positioning frame.

[0010] Preferably, the top of the fixing plate has symmetrical through holes, and the inner surfaces of the two through holes are slidably connected to slide rods. A sliding plate is fixedly connected between the lower ends of the two slide rods. A pressure sensor is symmetrically fixedly connected to the top of the sliding plate. A limit plate is fixedly connected to the upper end of the slide rod. The diameter of the limit plate is larger than the diameter of the through hole. A distance sensor is fixedly connected to the bottom of the fixing plate. An clearance groove is provided at the bottom of the sliding plate, and the clearance groove cooperates with the position of the distance sensor.

[0011] Preferably, the support block is located inside the punching hole, the outer surface of the support block is in contact with the inner surface of the punching hole, a top rod is fixedly connected to the bottom of the support block, the top rod is fixedly connected to the mounting plate, the mounting plate is located on the lower side of the processing table, a toothed plate is fixedly connected to the outer surface of the mounting plate, and sliders are symmetrically fixedly connected to the other outer surface of the mounting plate.

[0012] Preferably, a motor is fixedly connected to the outer surface of the first base frame, the output end of the motor slides through the first base frame and extends to the inner side, a rotating shaft is fixedly connected to the output end of the motor, the end face of the rotating shaft is rotatably connected to the inner surface of the first base frame, a gear is fixedly connected to the outer surface of the rotating shaft, the gear meshes with a gear plate, and a slide rail is fixedly connected to the inner surface of the second base frame, the outer surface of the slide rail is slidably connected to the inner surface of the slider.

[0013] Preferably, the air nozzle is located on the outer side of the mounting plate, a fixing ring is fixedly connected to the outer surface of the air nozzle, a fixing rod is symmetrically fixedly connected to the outer surface of the fixing ring, and the fixing rod is fixedly connected to the inner surface of the first base frame.

[0014] Preferably, the discharge guide plate is located on the side away from the air nozzle, the discharge guide plate is positioned to match the air nozzle, the discharge guide plate is inclined, and a plurality of first rollers are rotatably connected at equal intervals on the inner surface of the discharge guide plate, and a plurality of second rollers are rotatably connected at equal intervals on the inner surface of the discharge guide plate.

[0015] A manufacturing process for an improved die for preventing deformation of stamped parts includes the following steps:

[0016] S1. When stamping the workpiece, place the workpiece above the lower die base so that the punching position is aligned with the punching hole. Start the first hydraulic rod to drive the support frame and support plate to move down. Through the connection of the extension rod, the positioning frame can contact the workpiece first. The rubber pad can increase the friction between the positioning frame and the workpiece. At this time, the workpiece is clamped between the lower die base and the positioning frame to complete the initial positioning.

[0017] S2. Activating the extension of the third hydraulic rod can drive the fixed plate to move downward. The distance sensor can measure the distance of the workpiece from each position. By measuring the distance at multiple points, the warped deformation position of the workpiece can be determined. Subsequently, when the third hydraulic rod drives the fixed plate to press the workpiece, the pressure can be adjusted according to the deformation of the workpiece at different positions. Compared with the third hydraulic rod in the flat position, the third hydraulic rod in the warped position applies greater pressure, which can flatten the workpiece and make the punching position of the workpiece in a flat state.

[0018] S3. When the second hydraulic rod is activated and drives the connecting plate and the punch head to move down to punch the workpiece, since the surface of the lower die base is in a complete plane state at this time, when the workpiece contacts the punch head and is subjected to downward pressure, the bottom support block provides support for the bottom of the workpiece, which can offset the stress on the top of the workpiece and effectively avoid the problem of deformation caused by the large pressure on the workpiece when it contacts the punch head.

[0019] S4. When the stamping head contacts the workpiece and presses down further to achieve stamping, the motor is started synchronously. The start of the motor can drive the mounting plate to move down synchronously. The mounting plate can drive the support block to move down through the connection of the push rod. By setting the downward speed of the stamping head and the support block to be consistent, the support block can always be kept in the lower position of the workpiece to provide support when the stamping head is stamping the workpiece. This can keep the stamped workpiece in a flat state and effectively improve the processing quality.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. During use, when stamping the workpiece, the first hydraulic rod is activated to move the support frame and support plate downwards. At this time, the workpiece is clamped between the lower die base and the positioning frame to complete the initial positioning. The distance sensor can measure the distance of the workpiece from each position. By measuring the distance at multiple points, the warping deformation position of the workpiece can be determined. Subsequently, when the third hydraulic rod drives the fixing plate to press the workpiece, the pressure can be adjusted according to the deformation of the workpiece at different positions. Compared with the third hydraulic rod in the flat position, the third hydraulic rod in the warping position applies greater pressure, which can flatten the workpiece and make the punching position of the workpiece in a flat state.

[0022] 2. During use, when the workpiece comes into contact with the stamping head and is subjected to downward pressure, the bottom support block provides support to the bottom of the workpiece. This can offset the stress on the upper part of the workpiece, effectively preventing the workpiece from deforming due to excessive pressure at the moment of contact with the stamping head. When the motor starts, it can drive the mounting plate to move down synchronously. The mounting plate can drive the support block to move down along with it through the connection of the push rod. By keeping the downward movement speed of the stamping head and the support block consistent, the support block can always remain in the lower position of the workpiece to provide support when the stamping head is stamping it. This allows the stamped workpiece to remain flat and effectively improves the processing quality.

[0023] 3. During use, after the workpiece is stamped, the air pump starts and blows the workpiece out from the air nozzle, achieving the purpose of automatic unloading after the blowing is completed. After being blown, the workpiece will slide down the inclined surface of the unloading guide plate to complete the unloading. When the workpiece moves to unload, the bottom of the workpiece will contact and rotate with the first roller and the second roller respectively, which reduces the friction and avoids scratches on the bottom of the workpiece when it slides out, effectively improving the yield of stamping processing. Attached Figure Description

[0024] Figure 1 This is a perspective view of an improved die for preventing deformation of stamped parts according to the present invention;

[0025] Figure 2 This is a bottom view of an improved die for preventing deformation of stamped parts according to the present invention;

[0026] Figure 3 This is a schematic diagram of the processing table structure of an improved mold for preventing deformation of stamped parts according to the present invention;

[0027] Figure 4 This is a schematic diagram of the stamping assembly structure of an improved die for preventing deformation of stamped parts according to the present invention;

[0028] Figure 5 This is a schematic diagram of the stamping assembly structure of an improved die for preventing deformation of stamped parts according to the present invention;

[0029] Figure 6This is a schematic diagram of the stamping assembly structure of an improved die for preventing deformation of stamped parts according to the present invention;

[0030] Figure 7 This is a schematic diagram of the support assembly structure of an improved die for preventing deformation of stamping parts according to the present invention;

[0031] Figure 8 This is a schematic diagram of the drive assembly structure of an improved die for preventing deformation of stamping parts according to the present invention;

[0032] Figure 9 This is a schematic diagram of the material ejection assembly structure of an improved die for preventing deformation of stamping parts according to the present invention;

[0033] Figure 10 This is a schematic diagram of the material discharge assembly structure of an improved mold for preventing deformation of stamping parts according to the present invention.

[0034] In the picture:

[0035] 1. Processing table; 2. Support rod; 3. Top plate; 4. First hydraulic rod; 5. Stamping assembly; 501. Support frame; 502. Support plate; 503. Guide hole; 504. Second hydraulic rod; 505. Third hydraulic rod; 506. Extension rod; 507. Positioning frame; 508. Rubber pad; 509. Connecting plate; 510. Stamping head; 511. Fixing plate; 512. Slide rod; 513. Sliding plate; 514. Limiting plate; 515. Distance sensor; 516. Pressure sensor; 517. Clearance groove; 6. Support assembly; 601. Support block; 602. Top rod; 603. Mounting plate; 604. Toothed plate; 605. Slider; 7. Drive assembly; 701. First base frame; 702. Second base frame; 703. Motor; 704. Rotating shaft; 705. Gear; 706. Slide rail; 8. Unloading assembly; 801. Buckle; 802. Air pipe; 803. Air nozzle; 804. Fixing ring; 805. Fixing rod; 9. Discharge assembly; 901. Discharge guide plate; 902. Unloading guide plate; 903. First roller; 904. Second roller; 10. Lower die base; 11. Punching hole; 12. Guide rod. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Reference Figures 1-10As shown: An improved mold for preventing deformation of stamped parts includes: a processing table 1, with support rods 2 fixedly connected to the top corners of the processing table 1, a top plate 3 fixedly connected between the upper surfaces of the support rods 2, a first hydraulic rod 4 fixedly connected to the top of the top plate 3, the output end of the first hydraulic rod 4 slidingly penetrating the top plate 3 and extending to the lower side, a lower mold base 10 fixedly connected to the center of the top of the processing table 1, and a stamping hole 11 opened at the center of the top of the lower mold base 10; a stamping assembly 5, which is fixedly connected to the output end of the first hydraulic rod 4, and includes a support frame 501, with a support plate 502 fixedly connected to the bottom of the support frame 501; and a support assembly 6. At the lower side of the processing table 1, the support assembly 6 includes a support block 601 and a mounting plate 603; the drive assembly 7 is fixedly connected to the bottom of the processing table 1, and includes a first base frame 701 and two second base frames 702; the unloading assembly 8 is fixedly connected to the bottom of the processing table 1, and includes multiple clips 801, with air pipes 802 arranged between the inner surfaces of the multiple clips 801, and air nozzles 803 fixedly connected to the end faces of the air pipes 802; the discharge assembly 9 is fixedly connected to the bottom of the processing table 1, and includes a discharge guide plate 901, with a discharge guide plate 902 fixedly connected to the outer surface of the discharge guide plate 901.

[0038] like Figures 1-5 As shown, multiple guide rods 12 are uniformly fixedly connected to the top of the lower mold base 10, and multiple guide holes 503 are uniformly opened on the top of the support plate 502. The outer surface of the guide rod 12 is inserted into the inner surface of the guide hole 503. A second hydraulic rod 504 is fixedly connected to the center of the top of the support plate 502. The output end of the second hydraulic rod 504 slides through the support plate 502 and extends to the lower side. A connecting plate 509 is fixedly connected to the output end of the second hydraulic rod 504. A punch head 510 is fixedly connected to the bottom of the connecting plate 509. The punch head 510 is matched with the punch hole 11. Through the matching of the guide rod 12 and the guide hole 503, when the first hydraulic rod 4 is activated to drive the support frame 501 and the support plate 502 to move downward, the guide rod 12 can be inserted into the guide hole 503, which plays a guiding and limiting role for the support plate 502.

[0039] like Figure 4 and Figure 5As shown, multiple extension rods 506 are evenly fixedly connected to the bottom of the support plate 502. A positioning frame 507 is fixedly connected between the lower end faces of the multiple extension rods 506. A rubber pad 508 is provided at the bottom of the positioning frame 507. The connecting plate 509 is located inside the positioning frame 507. After the support plate 502 moves down, the extension rods 506 are in the lower position when the fixed plate 511 and the punch head 510 are in the uppermost initial position. Therefore, the positioning frame 507 can contact the workpiece first through the connection of the extension rods 506. The rubber pad 508 can increase the friction between the positioning frame 507 and the workpiece. At this time, the workpiece is clamped between the lower die base 10 and the positioning frame 507 to complete the initial positioning.

[0040] like Figure 5 As shown, multiple third hydraulic rods 505 are uniformly fixedly connected to the top of the support plate 502. The output end of the third hydraulic rod 505 slides through the support plate 502 and extends to the lower side. The output end of the third hydraulic rod 505 is fixedly connected to a fixing plate 511. The fixing plate 511 is located outside the positioning frame 507. After the workpiece is initially limited by the positioning frame 507, the extension of the third hydraulic rod 505 can drive the fixing plate 511 to move down to further flatten and correct the workpiece.

[0041] like Figure 5 and Figure 6 As shown, the top of the fixed plate 511 has symmetrical through holes, and slide rods 512 are slidably connected to the inner surfaces of the two through holes. A sliding plate 513 is fixedly connected between the lower end faces of the two slide rods 512. Pressure sensors 516 are symmetrically fixedly connected to the top of the sliding plate 513. A limit plate 514 is fixedly connected to the upper end face of the slide rods 512. The diameter of the limit plate 514 is larger than the diameter of the through holes. A distance sensor 515 is fixedly connected to the bottom of the fixed plate 511. A clearance groove 517 is opened at the bottom of the sliding plate 513. The clearance groove 517 cooperates with the position of the distance sensor 515. Before the third hydraulic rod 505 is activated, the distance sensors 515 can measure the distance from each position by setting multiple distance sensors 515 above the workpiece. The distance to the workpiece can be determined by multi-point distance measurement to find the warped deformation position of the workpiece. Then, when the third hydraulic rod 505 drives the fixed plate 511 to press the workpiece, the pressure can be adjusted according to the deformation of the workpiece at different positions. Compared with the third hydraulic rod 505 in the flat position, the third hydraulic rod 505 in the warped position applies greater pressure, which can flatten the workpiece and make the punching position of the workpiece flat. When the fixed plate 511 applies downward pressure, the reverse force will be transmitted to the pressure sensor 516 through the sliding plate 513, so that the downward pressure data applied by the sliding plate 513 to the workpiece can be accurately obtained. This allows the device to automatically adjust the pressure according to the data of the distance sensor 515 through the control system.

[0042] like Figure 3 and Figure 7 As shown, the support block 601 is located inside the punching hole 11, and the outer surface of the support block 601 is in contact with the inner surface of the punching hole 11. A push rod 602 is fixedly connected to the bottom of the support block 601, and the push rod 602 is fixedly connected to the mounting plate 603. The mounting plate 603 is located on the lower side of the processing table 1, and a toothed plate 604 is fixedly connected to the outer surface of the mounting plate 603. A slider 605 is symmetrically fixedly connected to the outer surface of the other side of the mounting plate 603. After the workpiece is initially limited and corrected and flattened by the positioning frame 507 and the sliding plate 513, the support block 601 is now in the position of... Inside the stamping hole 11, the support block 601 is flush with the lower die base 10. When the second hydraulic rod 504 is activated to move the connecting plate 509 and the stamping head 510 downward to stamp the workpiece, since the surface of the lower die base 10 is in a complete plane state, when the workpiece contacts the stamping head 510 and is subjected to downward pressure, the bottom support block 601 provides support for the bottom of the workpiece, which can offset the stress on the upper part of the workpiece and effectively avoid the problem of deformation caused by the large pressure on the workpiece when it contacts the stamping head 510.

[0043] like Figure 2 , Figure 7 and Figure 8 As shown, a motor 703 is fixedly connected to the outer surface of the first base frame 701. The output end of the motor 703 slides through the first base frame 701 and extends to the inner side. A rotating shaft 704 is fixedly connected to the output end of the motor 703. The end face of the rotating shaft 704 is rotatably connected to the inner surface of the first base frame 701. A gear 705 is fixedly connected to the outer surface of the rotating shaft 704. The gear 705 meshes with a gear plate 604. A slide rail 706 is fixedly connected to the inner surface of the second base frame 702. The outer surface of the slide rail 706 is slidably connected to the inner surface of the slider 605. When the stamping head 510 contacts the workpiece and presses down further to achieve stamping, the motor 703 is started synchronously. The motor 703 can be started via the rotating shaft. The connection of 704 drives the gear 705 to rotate. When the gear 705 rotates, it can drive the mounting plate 603 to move down synchronously through the connection with the toothed plate 604. The mounting plate 603 can drive the support block 601 to move down through the connection of the push rod 602. When the mounting plate 603 moves, the cooperation between the slide rail 706 and the slider 605 can provide support and limit the mounting plate 603. By setting the downward speed of the punch head 510 and the support block 601 to be consistent, when the punch head 510 punches the workpiece, the support block 601 can always stay in the lower position of the workpiece to provide support, so that the punched workpiece can remain flat.

[0044] like Figure 2 and Figure 9As shown, the air nozzle 803 is located on the outside of the mounting plate 603. A fixing ring 804 is fixedly connected to the outer surface of the air nozzle 803. A fixing rod 805 is symmetrically fixedly connected to the outer surface of the fixing ring 804. The fixing rod 805 is fixedly connected to the inner surface of the first base frame 701. After the workpiece is stamped, the second hydraulic rod 504 drives the stamping head 510 to move upward and reset. The motor 703 drives the support block 601 to move to the lower side of the processing table 1. At this time, the stamped workpiece is above the support block 601. After the air pipe 802 is connected to the air pump, the air pump can blow the workpiece out from the position of the air nozzle 803, realizing the purpose of automatic material return after the blowing is completed, improving the automation level of the device. The setting of the buckle 801 can provide support for the arrangement of the air pipe 802.

[0045] like Figure 2 , Figure 9 and Figure 10 As shown, the discharge guide plate 901 is located on the side away from the air nozzle 803. The discharge guide plate 901 is positioned to cooperate with the air nozzle 803. The unloading guide plate 902 is inclined. Multiple first rollers 903 are equidistantly rotatably connected to the inner surface of the discharge guide plate 901, and multiple second rollers 904 are equidistantly rotatably connected to the inner surface of the unloading guide plate 902. The workpiece blown out by the air nozzle 803 will enter the discharge guide plate 901. Subsequently, the workpiece will slide down the inclined surface of the unloading guide plate 902 after being blown, thus completing the unloading. When the workpiece moves to unload, the bottom of the workpiece will contact and rotate with the first roller 903 and the second roller 904 respectively, which reduces the friction and prevents scratches from being caused on the bottom of the workpiece when it slides out, effectively improving the yield of stamping processing.

[0046] In this invention, when stamping a workpiece, the workpiece is placed above the lower die base 10, aligning the punching position with the punching hole 11. The first hydraulic rod 4 is activated, causing the support frame 501 and support plate 502 to move downwards. The extension rod 506 connects the workpiece so that the positioning frame 507 contacts it first. The rubber pad 508 increases the friction between the positioning frame 507 and the workpiece, thus clamping the workpiece between the lower die base 10 and the positioning frame 507 for initial positioning. After the workpiece is initially positioned by the positioning frame 507, the third hydraulic rod 505 extends, causing the fixing plate 511 to move downwards for further flattening and straightening of the workpiece. The distance sensor 515 can measure the distance of the workpiece from various positions. By measuring distance at multiple points, the warped deformation position of the workpiece can be determined. Subsequently, when the third hydraulic rod 505 drives the fixed plate 511 to press the workpiece, the pressure can be adjusted according to the workpiece deformation at different positions. Compared with the third hydraulic rod 505 in the flat position, the third hydraulic rod 505 in the warped position applies greater pressure, thereby flattening the workpiece and ensuring that the punching position of the workpiece is in a flat state. After the positioning frame 507 and the sliding plate 513 complete the initial positioning and correction flattening of the workpiece, since the surface of the lower die base 10 is in a complete flat state at this time, when the workpiece contacts the punch head 510 and is subjected to downward pressure, the bottom support block 601 provides support for the bottom of the workpiece, which can prevent the workpiece from being subjected to downward pressure from above. The stresses cancel each other out, effectively preventing the workpiece from deforming due to excessive pressure upon contact with the stamping head 510. When the stamping head 510 further presses down after contacting the workpiece to achieve stamping, the motor 703 starts synchronously. The motor 703 drives the mounting plate 603 to move downwards synchronously. The mounting plate 603, connected by the push rod 602, drives the support block 601 to move downwards as well. By keeping the downward speeds of the stamping head 510 and the support block 601 consistent, the support block 601 can always remain under the workpiece to provide support while the stamping head 510 is stamping it, thus ensuring the stamped workpiece remains flat and effectively improving processing quality. After stamping the workpiece, the motor 703... The support block 601 is moved to the lower side of the processing table 1. At this time, the stamped workpiece is above the support block 601. After connecting the air pipe 802 to the air pump, the air pump can blow the workpiece out from the air nozzle 803, realizing the purpose of automatic unloading after blowing, and improving the automation level of the device. The workpiece blown out by the air nozzle 803 will enter the discharge guide plate 901. Then, the workpiece will slide down the inclined surface of the discharge guide plate 902 after being blown to complete the unloading. When the workpiece moves to unload, the bottom of the workpiece will contact and rotate with the first roller 903 and the second roller 904 respectively, which reduces the friction and avoids scratches on the bottom of the workpiece when it slides out, effectively improving the yield of stamping processing.

[0047] The wiring diagrams of the first hydraulic rod 4, the second hydraulic rod 504, the third hydraulic rod 505, the distance sensor 515, the pressure sensor 516, and the motor 703 in this invention are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring arrangements of the first hydraulic rod 4, the second hydraulic rod 504, the third hydraulic rod 505, the distance sensor 515, the pressure sensor 516, and the motor 703 will not be explained in detail.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An improved die for preventing deformation of stamped parts, characterized in that, include: A processing table (1) is provided, and support rods (2) are fixedly connected to the top corners of the processing table (1). A top plate (3) is fixedly connected between the upper surfaces of the support rods (2). A first hydraulic rod (4) is fixedly connected to the top of the top plate (3). The output end of the first hydraulic rod (4) slides through the top plate (3) and extends to the lower side. A lower mold base (10) is fixedly connected to the center of the top of the processing table (1). A punching hole (11) is opened at the center of the top of the lower mold base (10). A stamping assembly (5) is fixedly connected to the output end of a first hydraulic rod (4). The stamping assembly (5) includes a support frame (501), and a support plate (502) is fixedly connected to the bottom of the support frame (501). A support assembly (6) is located on the lower side of the processing table (1). The support assembly (6) includes a support block (601) and a mounting plate (603). A drive assembly (7) is fixedly connected to the bottom of the processing table (1). The drive assembly (7) includes a first base frame (701) and two second base frames (702). Material ejection assembly (8) is fixedly connected to the bottom of processing table (1). The material ejection assembly (8) includes multiple buckles (801). An air pipe (802) is provided between the inner surfaces of the multiple buckles (801). An air nozzle (803) is fixedly connected to the end face of the air pipe (802). The material discharge assembly (9) is fixedly connected to the bottom of the processing table (1). The material discharge assembly (9) includes a material discharge guide plate (901), and a material discharge guide plate (902) is fixedly connected to the outer surface of the material discharge guide plate (901). The lower mold base (10) is uniformly fixedly connected to a plurality of guide rods (12) on its top. The support plate (502) is uniformly provided with a plurality of guide holes (503) on its top. The outer surface of the guide rods (12) is inserted into the inner surface of the guide holes (503). A second hydraulic rod (504) is fixedly connected to the center of the top of the support plate (502). The output end of the second hydraulic rod (504) slides through the support plate (502) and extends to the lower side. A connecting plate (509) is fixedly connected to the output end of the second hydraulic rod (504). A punching head (510) is fixedly connected to the bottom of the connecting plate (509). The punching head (510) is matched with the punching hole (11). The support plate (502) has multiple extension rods (506) evenly fixedly connected to its bottom. A positioning frame (507) is fixedly connected between the lower ends of the multiple extension rods (506). A rubber pad (508) is provided at the bottom of the positioning frame (507). The connecting plate (509) is located inside the positioning frame (507). The top of the support plate (502) is uniformly fixedly connected with a plurality of third hydraulic rods (505). The output end of the third hydraulic rod (505) slides through the support plate (502) and extends to the lower side. The output end of the third hydraulic rod (505) is fixedly connected with a fixing plate (511). The fixing plate (511) is located outside the positioning frame (507). The top of the fixed plate (511) is symmetrically provided with through holes, and the inner surfaces of the two through holes are slidably connected with slide rods (512). A sliding plate (513) is fixedly connected between the lower end faces of the two slide rods (512). A pressure sensor (516) is symmetrically fixedly connected to the top of the sliding plate (513). A limit plate (514) is fixedly connected to the upper end face of the slide rod (512). The diameter of the limit plate (514) is larger than the diameter of the through hole. A distance sensor (515) is fixedly connected to the bottom of the fixed plate (511). A clearance groove (517) is provided at the bottom of the sliding plate (513). The clearance groove (517) is matched with the position of the distance sensor (515).

2. The improved die for preventing deformation of stamped parts according to claim 1, characterized in that: The support block (601) is located inside the punching hole (11). The outer surface of the support block (601) is in contact with the inner surface of the punching hole (11). A top rod (602) is fixedly connected to the bottom of the support block (601). The top rod (602) is fixedly connected to the mounting plate (603). The mounting plate (603) is located on the lower side of the processing table (1). A toothed plate (604) is fixedly connected to the outer surface of the mounting plate (603). A slider (605) is symmetrically fixedly connected to the outer surface of the other side of the mounting plate (603).

3. The improved die for preventing deformation of stamped parts according to claim 2, characterized in that: A motor (703) is fixedly connected to the outer surface of the first base frame (701). The output end of the motor (703) slides through the first base frame (701) and extends to the inner side. A rotating shaft (704) is fixedly connected to the output end of the motor (703). The end face of the rotating shaft (704) is rotatably connected to the inner surface of the first base frame (701). A gear (705) is fixedly connected to the outer surface of the rotating shaft (704). The gear (705) meshes with a toothed plate (604). A slide rail (706) is fixedly connected to the inner surface of the second base frame (702). The outer surface of the slide rail (706) is slidably connected to the inner surface of the slider (605).

4. The improved die for preventing deformation of stamped parts according to claim 1, characterized in that: The air nozzle (803) is located on the outside of the mounting plate (603). A fixing ring (804) is fixedly connected to the outer surface of the air nozzle (803). A fixing rod (805) is symmetrically fixedly connected to the outer surface of the fixing ring (804). The fixing rod (805) is fixedly connected to the inner surface of the first base frame (701).

5. The improved die for preventing deformation of stamped parts according to claim 4, characterized in that: The discharge guide plate (901) is located on the side away from the air nozzle (803). The discharge guide plate (901) is positioned to cooperate with the air nozzle (803). The discharge guide plate (902) is inclined. Multiple first rollers (903) are equidistantly rotatably connected to the inner surface of the discharge guide plate (901). Multiple second rollers (904) are equidistantly rotatably connected to the inner surface of the discharge guide plate (902).

6. A manufacturing process for an improved die for preventing deformation of stamped parts, characterized in that, An improved die for preventing deformation of stamped parts, as described in any one of claims 1-5, includes the following steps: S1. When stamping the workpiece, place the workpiece above the lower die base (10) so that the punching position is aligned with the punching hole (11). Start the first hydraulic rod (4) to drive the support frame (501) and support plate (502) to move down. Through the connection of the extension rod (506), the positioning frame (507) can contact the workpiece first. The setting of the rubber pad (508) can increase the friction between the positioning frame (507) and the workpiece. At this time, the workpiece is clamped between the lower die base (10) and the positioning frame (507) to complete the initial positioning. S2. When the third hydraulic rod (505) is extended, it can drive the fixed plate (511) to move down. The distance sensor (515) can measure the distance of the workpiece from each position. By measuring the distance at multiple points, the warped deformation position of the workpiece can be determined. Then, when the third hydraulic rod (505) drives the fixed plate (511) to press the workpiece, the pressure can be adjusted according to the deformation of the workpiece at different positions. Compared with the third hydraulic rod (505) in the flat position, the third hydraulic rod (505) in the warped position applies greater pressure, so that the workpiece can be flattened and the punching position of the workpiece is in a flat state. S3. When the second hydraulic rod (504) is activated to drive the connecting plate (509) and the punch head (510) to move down to punch the workpiece, since the surface of the lower die base (10) is in a complete plane state at this time, when the workpiece contacts the punch head (510) and is subjected to downward pressure, the bottom support block (601) provides support for the bottom of the workpiece, which can offset the stress on the upper part of the workpiece and effectively avoid the problem of deformation caused by the large pressure on the workpiece when it contacts the punch head (510). S4. When the stamping head (510) presses down further after contacting the workpiece to achieve stamping, the motor (703) is started synchronously. The start of the motor (703) can drive the mounting plate (603) to move down synchronously. The mounting plate (603) can drive the support block (601) to move down through the connection of the push rod (602). By setting the downward movement speed of the stamping head (510) and the support block (601) to be consistent, when the stamping head (510) stamps the workpiece, the support block (601) can always stay in the lower position of the workpiece to provide support, so that the stamped workpiece can be kept flat and the processing quality can be effectively improved.

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