Quick dismounting and locking structure of metal stamping die

Abstract

The utility model discloses a kind of metal stamping die quick dismounting locking structure, it is related to metal stamping die installation technical field, including bottom plate, sealing frame, die, hydraulic cylinder drive connecting rod drives lifting screw to lift in the inside surface of guide frame work, to utilize lifting block to drive elastic limit frame lifting work, three elastic limit frame can have buffering effect when round angle down pressure block is contacted with sealing plate, to limit effect to the use of round angle down pressure block, the bottom of the round angle down pressure block contacted with the top of sealing plate is set, realize to sealing plate exert pressure, to facilitate elastic sealing block and die stripping work, the sealing plate is clamped in installation groove by the clamping block set, realize to improve the use stability of sealing plate, the sealing effect between sealing plate and die is realized by the elastic sealing block set, the telescopic rod is clamped in by clamping ball and clamping block inside, realize to improve the connection sealing between sealing plate and die, realize quick locking work.

Description

Technical Field

[0001] This utility model relates to the field of metal stamping die installation technology, and in particular to a quick disassembly and locking structure for metal stamping dies. Background Technology

[0002] Metal stamping is a processing technology that uses stamping dies and stamping equipment to apply pressure to sheet metal, causing it to undergo plastic deformation or separation, thereby obtaining workpieces (stamped parts) of the desired shape and size. In the entire stamping production system, the die is the core component, and its installation accuracy, speed, and stability directly determine production efficiency, product quality, and production costs.

[0003] A metal stamping device with quick-assembly and disassembly of a stamping die is disclosed in patent publication number CN215032693U. This patent includes a base, a first rotating shaft, a rotating cylinder, a feeding plate, a stamping device, a first threaded rod, a first bearing, a first gear, a second gear, a servo motor, a dovetail slider, a limit frame, a third gear, a second threaded rod, a threaded cylinder, a second bearing, an adjusting block, a second rotating shaft, a telescopic rod, a dovetail groove, and a second spring. This metal stamping device with quick-assembly and disassembly of a stamping die, by setting up the first rotating shaft, rotating cylinder, stamping device, first gear, adjusting block, second gear, and servo motor, starts the servo motor... The servo motor drives the second gear to rotate, and moving the adjusting block to the left causes the servo motor to move to the left, which in turn moves the second gear on the upper end of the servo motor to the left. This allows the second gear to mesh and drive the first gear to rotate, which in turn drives the first rotating shaft to rotate. The first rotating shaft then drives the rotating cylinder to rotate. This allows for adjustment of the position of stamping devices with different structures to facilitate the stamping of raw materials. It also allows for quick mold changes, reducing the frequency of mold disassembly and ensuring high production efficiency in stamping. This is achieved by setting up a feeding plate, stamping device, second gear, servo motor, and third gear. The second threaded rod and threaded cylinder, when activated by the servo motor, drive the second gear to rotate. The second spring, through its own tension, moves the second gear at the top of the servo motor to the right, causing it to mesh and drive the third gear to rotate, which in turn drives the second shaft to rotate. During rotation, the threaded rod drives the threaded cylinder downwards, causing the threaded cylinder to move the stamping device downwards. Simultaneously, as the stamping device descends, the support plate slides downwards on the surface of the support rod, thus pressing the support rod to facilitate the stamping of the raw material in the feeding plate. At the same time, the limit frame engages with the first rotating shaft. The shaft is designed to fix the angle of the first rotating shaft, thus ensuring the stability of the stamping device during operation. By configuring the first threaded rod, the stamping device, and the support plate, when the stamping device needs to be replaced or installed, simply remove the first threaded rod from the support plate and the stamping device, separating the stamping device from the support plate for disassembly. Then, the stamping device to be installed is snapped into the support plate, fixing the position of the support plate and the stamping device with the first threaded rod. This ensures the stability of the stamping device during operation and improves mold replacement efficiency. However, the following problems still exist in this patent: The above-mentioned disassembly and assembly of metal stamping dies is limited to the die body and does not achieve rapid locking and sealing with the mounting base. At the same time, it cannot automatically perform rapid demolding and disassembly of the die, lacks an effective buffer and flexible protection mechanism, and is subject to impact damage. It has a single function, does not integrate sealing function, and cannot meet specific process requirements.

[0004] To address the above issues, a quick-release and locking structure for metal stamping dies needs to be designed to overcome these problems. Utility Model Content

[0005] The main purpose of this utility model is to provide a quick-release and locking structure for metal stamping dies, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A quick-release and locking structure for metal stamping dies includes a base plate, a sealing frame, and a die. A guide frame and a limiting frame are respectively connected to the two ends of the top of the sealing frame. A connecting rod is connected to the top of the guide frame, and a hydraulic cylinder is connected to the top of the connecting rod. A lifting screw is connected to the bottom of the connecting rod, penetrating the top of the guide frame. A lifting block is connected to the bottom of the lifting screw. A reinforcing rod is connected to one end of the lifting block. A rounded corner positioning block is sleeved on the outer wall of the reinforcing rod. An elastic limiting frame is connected to the bottom of the rounded corner positioning block. A rounded corner pressing block is connected to the middle of the bottom of the elastic limiting frame. A limiting block is connected to the end of the reinforcing rod away from the lifting block.

[0007] As a preferred embodiment of this utility model, the outer wall of the sealing frame is provided with multiple mounting grooves, the inner side of the mounting groove is engaged with a locking block, the end of the locking block away from the sealing frame is connected to a sealing plate, the bottom of the sealing plate is connected to an elastic sealing block, both ends of the top of the mold are connected with multiple telescopic rods, the outer walls of the multiple telescopic rods are connected with springs, and the tops of the multiple telescopic rods are connected to locking balls.

[0008] In a preferred embodiment of this utility model, the hydraulic cylinder is fixedly connected to the connecting rod, the connecting rod passes through the top of the guide frame and is rotatably connected to the lifting screw, and the lifting screw is rotatably connected to the lifting block.

[0009] As a preferred embodiment of this utility model, the lifting block is rotatably connected to the reinforcing rod, the end of the reinforcing rod away from the lifting block is rotatably connected to the limiting block, and the three rounded corner positioning blocks are all fixedly sleeved on the outer wall of the reinforcing rod.

[0010] As a preferred embodiment of this utility model, the three rounded corner positioning blocks are fixedly connected to the elastic limiting frame, the elastic limiting frame is fixedly connected to the rounded corner pressing block, the bottom of the three rounded corner pressing blocks contacts the top of the sealing plate, and a through groove is provided on the top of the sealing frame.

[0011] In a preferred embodiment of this utility model, the sealing plate is fixedly connected to a plurality of the locking blocks, the plurality of locking blocks are engaged with the inner sides of a plurality of the mounting grooves, and the sealing plate is fixedly connected to the locking blocks.

[0012] As a preferred embodiment of this utility model, multiple locking blocks are engaged with the locking ball, the locking ball is fixedly connected to the telescopic rod, the telescopic rod is fixedly connected to the spring, and the bottom of the telescopic rod is rotatably connected to the top of the mold.

[0013] Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: This metal stamping die quick-release and locking structure uses a hydraulic cylinder to drive a connecting rod, which in turn moves a lifting screw up and down within the guide frame. This, in turn, uses a lifting block to move an elastic limit frame up and down. A reinforcing rod strengthens the connection stability between the three rounded corner positioning blocks. The three elastic limit frames provide a buffering effect when the rounded corner pressure block contacts the sealing plate, thus limiting the use of the rounded corner pressure block. The bottom of the rounded corner pressure block contacts the top of the sealing plate, applying pressure to the sealing plate and facilitating the demolding of the elastic sealing block from the die. A locking block engages the sealing plate in the mounting groove, improving its stability. The elastic sealing block provides a seal between the sealing plate and the die. A telescopic rod engages with the locking block using a locking ball, further enhancing the sealing performance between the sealing plate and the die and enabling quick locking. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model; Figure 3 This is a schematic diagram of the installation structure of the elastic limiting frame of this utility model; Figure 4 This is a schematic diagram of the sealing plate installation structure of this utility model; Figure 5 This is a schematic diagram of structure A of this utility model.

[0015] In the diagram: 1. Base plate; 2. Sealing frame; 3. Mold; 4. Guide frame; 5. Limiting frame; 6. Lifting screw; 7. Connecting rod; 8. Hydraulic cylinder; 9. Lifting block; 10. Reinforcing rod; 11. Rounded corner positioning block; 12. Elastic limiting frame; 13. Rounded corner pressing block; 14. Limiting block; 15. Mounting groove; 16. Sealing plate; 17. Elastic sealing block; 18. Clamping block; 19. Telescopic rod; 20. Spring; 21. Clamping ball. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-5 As shown, a quick-release and locking structure for a metal stamping die includes a base plate 1, a sealing frame 2, and a die 3. The top two ends of the sealing frame 2 are respectively connected to a guide frame 4 and a limiting frame 5. The top of the guide frame 4 is connected to a connecting rod 7, and the top of the connecting rod 7 is connected to a hydraulic cylinder 8. The bottom of the connecting rod 7 passes through the top of the guide frame 4 and is connected to a lifting screw 6. The bottom of the lifting screw 6 is connected to a lifting block 9. One end of the lifting block 9 is connected to a reinforcing rod 10. The outer wall of the reinforcing rod 10 is fitted with a rounded corner positioning block 11. The bottom of the rounded corner positioning block 11 is connected to an elastic limiting frame 12. The middle of the bottom of the elastic limiting frame 12 is connected to a rounded corner pressing block 13. The end of the reinforcing rod 10 away from the lifting block 9 is connected to a limiting block 14. The hydraulic cylinder 8 is fixedly connected to the connecting rod 7. The connecting rod 7 passes through the top of the guide frame 4 and is rotatably connected to the lifting screw 6. The lifting screw 6 is rotatably connected to the lifting block 9. The lifting block 9 is rotatably connected to the reinforcing rod 10. The end of the reinforcing rod 10 away from the lifting block 9 is rotatably connected to the limiting block 14. Three rounded corner positioning blocks 11 are fixedly sleeved on the outer wall of the reinforcing rod 10. The three rounded corner positioning blocks 11 are fixedly connected to the elastic limiting frame 12. The elastic limiting frame 12 is fixedly connected to the rounded corner pressing block 13. The bottom of the three rounded corner pressing blocks 13 contacts the top of the sealing plate 16. A through groove is opened on the top of the sealing frame 2. Specifically, in this embodiment, the lifting screw 6 can slide up and down through the center hole of the guide frame 4 and the limiting frame 5. The top end of the lifting screw 6 is hinged or fixedly connected to the piston rod end of a hydraulic cylinder 8 via a connecting rod 7. The hydraulic cylinder 8 is fixedly installed on the extension bracket of the equipment frame or guide frame 4. By controlling the extension and retraction of the hydraulic cylinder 8, the connecting rod 7 can be driven to drive the lifting screw 6 to perform precise lifting and lowering movements within the guide frame 4. The reinforcing rod 10 is arranged in a triangle or other stable polygon, and its center is fixedly connected to the bottom of the lifting block 9. A rounded corner positioning block 11 is fixedly sleeved at each of the three corners or other key nodes of the reinforcing rod 10. The design of rigidly connecting the three rounded corner positioning blocks 11 through the reinforcing rod 10 greatly enhances the structural stability and deformation resistance of the entire pressure application component, ensuring that the three pressure application points can remain synchronous and stable under huge pressure. Below each rounded corner positioning block 11, an elastic limiting frame 12 is fixedly connected. The elastic limiting frame 12 can be made of high-strength springs, polyurethane elastomers, or other materials with good elasticity and resilience. At the bottom of the elastic limiting frame 12, a rounded corner pressing block 13 is fixedly connected; When the hydraulic cylinder 8 drives the lifting screw 6 to descend, the lifting block 9 drives the three rounded corner positioning blocks 11 to descend synchronously through the reinforcing rod 10. The three rounded corner pressing blocks 13 descend accordingly and finally contact the sealing plate 16 below. At the moment of contact, the elastic limit frame 12 begins to play its role. It first absorbs the contact impact and provides flexible buffer to prevent rigid impact from damaging the mold or sealing plate. As the pressure continues to increase, the elastic limit frame 12 is gradually compressed. The reverse elastic force it generates not only plays a buffering role, but more importantly, it plays a precise "limiting effect" on the downward movement of the rounded corner pressing blocks 13, making the pressure applied to the sealing plate 16 more gentle and uniform, avoiding sealing failure or mold deformation caused by local overpressure. The operator places the sealing plate 16 assembly with the locking block 18 into the mounting groove 15 of the sealing frame 2 for initial positioning and fixation by aligning the locking block 18 with the locking block 18. At this time, the telescopic rod 19 on the mold 3 pushes the locking ball 21 at the top upward under the elastic force of the spring 20. When the rounded corner pressing block 13 presses down on the sealing plate 16, the sealing plate 16 forces the locking ball 21 to move downward and compress the spring 20. When the sealing plate 16 is pressed to the predetermined position, the locking ball 21 is precisely locked into the preset spherical groove inside the corresponding locking block 18. The linkage structure of the telescopic rod 19, spring 20, locking ball 21 and locking block 18 forms a reliable mechanical locking device. It not only further enhances the installation stability of the sealing plate 16 and prevents it from loosening or shifting during operation, but also significantly improves the connection sealing between the sealing plate 16 and the mold 3 through mechanical interlocking, realizing the core function of "quick locking".

[0018] The outer wall of the sealing frame 2 is provided with multiple mounting grooves 15. The inner side of the mounting groove 15 is fitted with a locking block 18. The end of the locking block 18 away from the sealing frame 2 is connected to a sealing plate 16. The bottom of the sealing plate 16 is connected to an elastic sealing block 17. Both ends of the top of the mold 3 are connected with multiple telescopic rods 19. The outer wall of the multiple telescopic rods 19 is connected with a spring 20. The top of the multiple telescopic rods 19 is connected to a clamping ball 21. The sealing plate 16 is fixedly connected to multiple locking blocks 18, and the multiple locking blocks 18 are locked onto the inner side of multiple mounting slots 15. The sealing plate 16 is fixedly connected to the locking blocks 18. The multiple locking blocks 18 are locked onto the clamping ball 21, and the clamping ball 21 is fixedly connected to the telescopic rod 19. The telescopic rod 19 is fixedly connected to the spring 20, and the bottom of the telescopic rod 19 is rotatably connected to the top of the mold 3. Specifically, in this embodiment, multiple mounting grooves 15 are evenly provided circumferentially on the outer wall of the sealing frame 2. Each mounting groove 15 can be detachably fitted with a locking block 18. One end of the locking block 18 is fixedly connected to the sealing plate 16. The sealing plate 16 has a ring or segmented structure, and its inner diameter is adapted to the outer contour of the mold 3. At the bottom of the sealing plate 16, a ring of elastic sealing blocks 17 is pasted or vulcanized and fixed. The elastic sealing blocks 17 are made of elastic materials such as rubber and silicone that are resistant to high temperature and wear. They are used to fill the gap between the sealing plate 16 and the top of the mold 3 after locking. At both ends of the top of the mold 3, multiple telescopic rods 19 are symmetrically installed. Each telescopic rod 19 is fitted with a spring 20. One end of the spring 20 abuts against the top of the mold 3, and the other end abuts against the flange at the top of the telescopic rod 19. At the top of the telescopic rod 19, a locking ball 21 is fixedly connected. After the stamping process is completed, when the workpiece needs to be removed from the mold 3, this structure can also provide an auxiliary demolding function. When the hydraulic cylinder 8 drives the locking mechanism to return upward, the pressure of the rounded corner pressing block 13 on the sealing plate 16 disappears. At this time, the compressed elastic sealing block 17 will generate a certain rebound force due to its own elasticity. At the same time, the spring 20 on the telescopic rod 19 will also generate an upward pushing force on the sealing plate 16 through the clamping ball 21. The combined action of these two upward forces helps to slightly lift the sealing plate 16 and the upper mold part of the mold 3 that is in close contact with it, thereby facilitating the separation of the elastic sealing block 17 from the mold 3 and creating convenient conditions for subsequent workpiece ejection and mold disassembly. Place mold 3 on base plate 1, insert sealing plate 16 assembly with locking block 18 and elastic sealing block 17 into mounting groove 15 of sealing frame 2, start hydraulic cylinder 8, extend its piston rod, drive lifting screw 6 to descend through connecting rod 7, lifting block 9 drives three rounded corner pressing blocks 13 to press down synchronously through reinforcing rod 10, rounded corner pressing blocks 13 contact and press sealing plate 16, elastic limit frame 12 provides buffer and uniform pressure, sealing plate 16 presses down, forcing telescopic rod 19 on mold 3 to retract until locking ball 21 is inserted into locking block 18, completing double locking and sealing, after stamping, control hydraulic cylinder 8 piston rod to retract, drive the entire locking mechanism to rise, rounded corner pressing block 13 separates from sealing plate 16, spring 20 pushes locking ball 21 to disengage from locking block 18, release secondary locking, pull sealing plate 16 assembly out of mounting groove 15, and then lift away mold 3, completing quick disassembly and assembly.

[0019] It should be noted that this utility model is a quick-release and locking structure for metal stamping dies. In use, the hydraulic cylinder 8 is activated, and the piston rod of the hydraulic cylinder 8 extends downward, driving the connecting rod 7, which is fixedly connected to it, to descend synchronously. The connecting rod 7 passes through the top of the guide frame 4, driving the lifting screw 6, which is rotatably connected to it, to perform precise vertical lifting and lowering movements on the inner side of the guide frame 4. The descent of the lifting screw 6 causes the lifting block 9 at its bottom to move vertically downward. The lifting block 9 is rigidly connected to two other rounded corner positioning blocks 11 through the reinforcing rod 10, forming a stable triangular frame structure. The presence of the reinforcing rod 10 ensures that the three rounded corner positioning blocks 11 will not undergo relative displacement or deformation when subjected to force and descending, ensuring the structural stability and motion synchronization of the entire pressing mechanism. Therefore, the descent of the lifting block 9 will synchronously drive the three elastic limit frames 12 and the rounded corner pressing blocks 13 at their bottom to move downward as a whole, smoothly. As the descent continues, the bottom surfaces of the three rounded corner pressing blocks 13 eventually contact the top surface of the sealing plate 16. When the elastic limiting frame 12 is compressed to a certain extent, its rigid part will act as a hard limit, ensuring that the pressing stroke of the rounded corner pressing blocks 13 on the sealing plate 16 is accurate and reliable positioning is achieved. The rounded corner pressing blocks 13 apply the huge locking force provided by the hydraulic cylinder 8 evenly to the sealing plate 16. After being subjected to force, the sealing plate 16 presses down on the elastic sealing block 17 fixed at its bottom, making it fit tightly against the top surface of the mold 3 below. The elastic sealing block 17 undergoes elastic deformation under pressure, perfectly filling all the microscopic gaps between the mold 3 and the sealing frame 2, thereby forming a highly reliable sealing environment. This sealing environment is crucial for some stamping processes that require vacuum, dust prevention, or coolant circulation. As the sealing plate 16 is pressed down, an ingenious linkage design is triggered: multiple telescopic rods 19 fixed to the top of the mold 3 have locking balls 21 at their top ends that will be locked into the pre-set slots or holes inside the locking blocks 18 on the sealing plate 16 as the mold 3 is relatively fixed or the sealing plate is pressed down. During this process, the springs 20 on the outer wall of the telescopic rods 19 are compressed, providing a continuous upward elastic clamping force for the locking balls 21. This not only further enhances the connection stability between the sealing plate 16 and the mold 3, preventing loosening under strong stamping vibration, but also greatly improves the "line sealing" or "point sealing" effect of the sealing interface through tight mechanical cooperation, ensuring the durability and reliability of the seal. At this point, mold 3 is securely locked onto base plate 1, and a sealed environment is established. The main slide of the stamping equipment can begin operation to stamp the sheet metal inside mold 3. Throughout the stamping process, this locking structure provides stable, non-offset support, ensuring the forming accuracy of the product. After stamping, when the formed workpiece needs to be removed from mold 3, demolding is performed. When hydraulic cylinder 8 drives the locking mechanism to return upward, the pressure of rounded corner pressing block 13 on sealing plate 16 is released. At this time, the compressed elastic sealing block 17 will generate an upward rebound force due to its own elasticity. This rebound force acts on the top surface of mold 3, helping to lift or loosen workpieces that may be slightly stuck, thus facilitating subsequent part removal. This achieves the functional integration of locking structure and demolding assistance. When mold 3 needs to be replaced, the piston rod of the hydraulic cylinder 8 retracts upward, and the entire power transmission chain moves in the opposite direction: the connecting rod 7 drives the lifting screw 6, lifting block 9, reinforcing rod 10, rounded corner positioning block 11, elastic limit frame 12, and rounded corner pressing block 13 to rise as a whole. As the rounded corner pressing block 13 separates from the sealing plate 16, the main locking force applied to the sealing plate 16 disappears. At the same time, the telescopic rod 19 on mold 3, under the action of the spring 20, drives the locking ball 21 to disengage from the inside of the locking block 18, and the secondary mechanical locking is automatically released. At this time, the operator can easily pull the sealing plate 16 together with its locking block 18 out of the mounting groove 15 of the sealing frame 2. Subsequently, mold 3 is no longer restrained and can be quickly lifted or moved. The whole process does not require the use of any wrenches or other tools. It is completed in tens of seconds from complete locking to complete unlocking through the control of only a hydraulic valve, which greatly improves the efficiency of mold replacement. Compared to existing technologies that use single or a few threaded connection points for fixing, this single-point or few-point pressure application method is prone to stress concentration under huge stamping loads, resulting in uneven force on the mold. Long-term use may cause micro-deformation, displacement, or even damage to the mold, seriously affecting the accuracy and consistency of stamped products, and also reducing the service life of the equipment. This utility model designs a triangular rigid frame composed of "lifting block 9 - reinforcing rod 10 - rounded corner positioning block 11". The power of the hydraulic cylinder 8 is transmitted synchronously from the lifting block 9 to the reinforcing rod 10 to the three rounded corner positioning blocks 11. This three-point synchronous, rigid connection pressure application structure ensures that the locking force can be applied evenly and stably to the three key positions of the sealing plate 16, forming an extremely stable mechanical closed loop. The presence of the reinforcing rod 10 fundamentally eliminates the deformation of the mechanism caused by uneven force, ensuring that the mold 3 can still maintain a zero-displacement, highly stable locking state under strong impact loads. This significantly improves the forming accuracy of stamped products and the overall service life of the mold. Comparative technologies primarily focus on the mechanical fixing and position adjustment of the mold, failing to offer effective solutions for the sealing of the mold's working environment and impact protection during the locking process. Their rigid locking methods are prone to impact at the moment of contact, potentially damaging the mold or sealing surface, and lack specialized sealing structures, failing to meet special process requirements such as vacuum, dustproof, or coolant circulation. This invention creatively integrates buffering, limiting, and sealing functions. An elastic limiting frame 12 is set between the rounded corner positioning block 11 and the rounded corner pressing block 13. When the rounded corner pressing block 13 contacts the sealing plate 16, the elastic limiting frame 12 first absorbs the contact impact, providing flexible buffering and effectively protecting the mold and sealing plate. As the pressure increases, the reverse elastic force generated after compression precisely limits the downward stroke, ensuring gentle and uniform pressure application and avoiding overpressure damage. This invention constructs an "elastic sealing block 17+" system. The dual sealing system of "mechanical interlock" firstly, the elastic sealing block 17 at the bottom of the sealing plate 16 deforms under pressure, which can perfectly fill the micro gap between it and the mold 3, achieving basic surface sealing. Secondly, the mechanical interlock structure composed of the telescopic rod 19, spring 20, and clamping ball 21 and clamping block 18, in the locked state, the continuous pressing force of the spring 20 makes the clamping ball 21 and the clamping block 18 tightly engaged, which greatly enhances the sealing performance and vibration resistance of the connection, enabling it to easily cope with various harsh process environments, which is completely unavailable in the comparison technology.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-release and locking structure for a metal stamping die, comprising a base plate (1), a sealing frame (2), and a die (3), characterized in that: The top two ends of the sealing frame (2) are respectively connected to the guide frame (4) and the limiting frame (5). The top of the guide frame (4) is connected to the connecting rod (7). The top of the connecting rod (7) is connected to the hydraulic cylinder (8). The bottom of the connecting rod (7) passes through the top of the guide frame (4) and is connected to the lifting screw (6). The bottom of the lifting screw (6) is connected to the lifting block (9). One end of the lifting block (9) is connected to the reinforcing rod (10). The outer wall of the reinforcing rod (10) is fitted with a rounded corner positioning block (11). The bottom of the rounded corner positioning block (11) is connected to the elastic limiting frame (12). The middle of the bottom of the elastic limiting frame (12) is connected to the rounded corner pressing block (13). The end of the reinforcing rod (10) away from the lifting block (9) is connected to the limiting block (14).

2. The quick assembly and disassembly locking structure of a metal stamping die according to claim 1, characterized in that: The outer wall of the sealing frame (2) is provided with multiple mounting grooves (15). The inner side of the mounting groove (15) is fitted with a locking block (18). The end of the locking block (18) away from the sealing frame (2) is connected to a sealing plate (16). The bottom of the sealing plate (16) is connected to an elastic sealing block (17). Both ends of the top of the mold (3) are connected with multiple telescopic rods (19). The outer walls of the multiple telescopic rods (19) are connected with springs (20). The top of the multiple telescopic rods (19) is connected with a clamping ball (21).

3. The quick assembly and disassembly locking structure of a metal stamping die according to claim 1, characterized in that: The hydraulic cylinder (8) is fixedly connected to the connecting rod (7), the connecting rod (7) passes through the top of the guide frame (4) and is rotatably connected to the lifting screw (6), and the lifting screw (6) is rotatably connected to the lifting block (9).

4. The quick assembly and disassembly locking structure of a metal stamping die according to claim 1, characterized in that: The lifting block (9) is rotatably connected to the reinforcing rod (10), and the end of the reinforcing rod (10) away from the lifting block (9) is rotatably connected to the limiting block (14). The three rounded corner positioning blocks (11) are all fixedly sleeved on the outer wall of the reinforcing rod (10).

5. The quick assembly and disassembly locking structure of a metal stamping die according to claim 2, characterized in that: The three rounded corner positioning blocks (11) are fixedly connected to the elastic limiting frame (12), the elastic limiting frame (12) is fixedly connected to the rounded corner pressing block (13), the bottom of the three rounded corner pressing blocks (13) is in contact with the top of the sealing plate (16), and the top of the sealing frame (2) is provided with a through groove.

6. The quick assembly and disassembly locking structure of a metal stamping die according to claim 2, characterized in that: The sealing plate (16) is fixedly connected to a plurality of the locking blocks (18), and the plurality of locking blocks (18) are locked onto the inner side of a plurality of the mounting grooves (15). The sealing plate (16) and the locking blocks (18) are fixedly connected.

7. The quick-release and locking structure for a metal stamping die according to claim 2, characterized in that: Multiple locking blocks (18) are engaged with the locking ball (21), the locking ball (21) is fixedly connected to the telescopic rod (19), the telescopic rod (19) is fixedly connected to the spring (20), and the bottom of the telescopic rod (19) is rotatably connected to the top of the mold (3).

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