Sheet metal stamping die convenient to disassemble

Abstract

The utility model belongs to sheet metal stamping technical field especially, a kind of sheet metal stamping die convenient to disassemble, to the whole or bolt fastening structure of traditional die, disassembly needs special tool, operation is tedious time-consuming, the shortcoming of influence production rhythm and increase maintenance cost, including die holder, lower die and upper die, the lower die is embedded die holder top, die holder side wall is equipped with locking assembly and ejector assembly;Die holder outside is equipped with driving assembly, including motor, transmission rod I and transmission rod II, transmission rod I and transmission rod II are made into synchronous reverse mechanism by bevel gear group, in the utility model, locking and ejector assembly linkage is controlled by driving assembly, realize lower die quick disassembly, without additional tool;The self-locking characteristic of worm and worm gear transmission, guarantee locking stability when stamping;Upper die is connected with the thread connection cooperation inside dish spring group of connecting pipe and connecting barrel, simplify upper die disassembly and provide buffer, slow down buffer impact.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal stamping technology, and in particular to a sheet metal stamping die that is easy to disassemble. Background Technology

[0002] Sheet metal stamping dies are widely used in sheet metal processing. They apply external force to the sheet metal to cause plastic deformation or separation, thereby obtaining workpieces of the required shape and size. In actual production, the disassembly and replacement of dies are frequent. For example, different sheet metal parts require different lower dies to adapt to different forming requirements.

[0003] However, traditional sheet metal stamping dies typically employ integral or bolt-fastened connections in their structural design. After stamping operations are completed, cleaning or replacement of these dies is a cumbersome process. The various components of the die are tightly connected, and the separation process often requires specialized tools and a considerable amount of time for operators, which to some extent affects the production rhythm and increases the time cost of equipment maintenance. Therefore, we propose a sheet metal stamping die that is easy to disassemble to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of the existing technology, which is that traditional molds adopt an integral or bolt-fastened structure, and the disassembly process requires tools and is cumbersome and time-consuming, which directly affects production efficiency and increases maintenance costs. Therefore, this utility model proposes a sheet metal stamping mold that is easy to disassemble.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A sheet metal stamping die that is easy to disassemble includes a die base, a lower die, and an upper die. The lower mold is embedded in the top of the mold base, and four sliding rods are symmetrically fixedly connected to the top of the lower mold. The four sliding rods slide through the upper mold. The sidewall of the mold base is provided with a locking assembly and an ejection assembly; The locking assembly includes a locking groove formed on the inner wall of the mold base, a locking wedge block slidably disposed in the locking groove, and a threaded rod I rotatably connected to the outer wall of the mold base. One end of the threaded rod I extends into the locking groove and is threadedly connected to the locking wedge block. The ejection assembly includes an ejection groove formed on the inner wall of the mold base, an ejection wedge block slidably disposed in the ejection groove, and a threaded rod II rotatably connected to the outer wall of the mold base. One end of the threaded rod II extends into the ejection groove and is threadedly connected to the ejection wedge block. A drive assembly is provided on the outer side of the mold base. The drive assembly includes a motor, a transmission rod I driven by the motor, and a transmission rod II. The transmission rod I is connected to the threaded rod I via a worm gear mechanism, and the transmission rod II is connected to the threaded rod II via a worm gear mechanism.

[0006] In one possible design, the locking assembly further includes a worm gear I and a worm I, the worm gear I being fixedly sleeved on the threaded rod I, the worm I being fixedly sleeved on the corresponding transmission rod I, and the worm gear I and the worm I being meshed together.

[0007] In one possible design, the ejector assembly further includes a worm gear II and a worm II, wherein the worm gear II is fixedly sleeved on the threaded rod II, and the worm II is fixedly sleeved on the corresponding transmission rod II, and the worm gear II and the worm II mesh with each other.

[0008] In one possible design, there are two transmission rods I, and synchronous pulleys are fixedly sleeved at both ends of the two transmission rods I. A synchronous belt is connected to the corresponding two synchronous pulleys for transmission. A housing is fixedly installed on the outside of the mold base. The motor is fixedly installed on the outside of the housing, and the output shaft of the motor is fixedly connected to one of the transmission rods I.

[0009] In one possible design, bevel gears are fitted onto one end of each of the two transmission rods II and one of the transmission rods I. There are two bevel gears on the transmission rod I. The bevel gears on the two transmission rods II mesh with the corresponding bevel gears on the transmission rod I. When the motor drives the transmission, the rotation directions of the threaded rod I and the threaded rod II are always opposite.

[0010] In one possible design, a connecting pipe is fixedly provided on the top of the upper mold, a slider is slidably connected inside the connecting pipe, and a connecting rod is fixedly connected to the top of the slider. A connecting cylinder is fitted onto the connecting rod, the connecting cylinder has an internal thread, and the outer wall of the connecting tube has an external thread that matches the internal thread.

[0011] In one possible design, a disc spring assembly is provided inside the connecting tube, with both ends of the disc spring assembly abutting against the bottom of the slider and the bottom inner wall of the connecting tube, respectively.

[0012] In one possible design, the lower mold has locking grooves on both sides that are adapted to the locking wedge blocks, and the bottom of the lower mold has an ejection groove that is adapted to the ejection wedge blocks.

[0013] In one possible design, the outer wall of the mold base is rotatably connected to threaded rod I via a fixed ring I, and rotatably connected to threaded rod II via a fixed ring II.

[0014] In this application, firstly, when the lower mold needs to be installed, the lower mold is embedded into the top of the mold base, so that the bottom of the lower mold is in contact with the inner wall of the mold base. At this time, the locking grooves on both sides of the lower mold are aligned with the locking slide groove of the mold base, and the ejection wedge block in the ejection slide groove on the mold base is in a fully retracted state, with its front end flush with the inner wall of the ejection slide groove, so as not to interfere with the embedding of the lower mold. The motor is started, and the output end of the motor drives one of the transmission rods I to rotate. The transmission rod I drives the other transmission rod I to rotate synchronously through the synchronous pulleys and synchronous belt at both ends. Through the transmission system composed of the transmission rod and the synchronous belt, it is ensured that the locking action on both sides is carried out synchronously. At the same time, the bevel gear on the transmission rod I meshes with the bevel gear on the transmission rod II, driving the two transmission rods II to rotate synchronously in opposite directions. Through the bevel gear cooperation, the linkage control of the locking and ejection components is realized, ensuring that when the transmission rod I drives the locking wedge block to move forward, the transmission rod II synchronously drives the ejection wedge block to move backward. When transmission rod I rotates, its worm gear I meshes with the worm wheel I on threaded rod I, driving threaded rod I to rotate within fixed ring I. Since threaded rod I is threadedly connected to the threaded hole I of locking wedge block, locking wedge block slides along locking groove towards the lower die and finally inserts into locking groove, completing the locking and fixing of the lower die. Utilizing the self-locking characteristics of worm wheel and worm, the locking state remains stable during subsequent stamping operations, preventing loosening due to vibration. During this process, worm gear II on transmission rod II meshes with the worm wheel II on threaded rod II, driving threaded rod II to rotate, causing ejector wedge block to slide along ejector groove away from the lower die and back to the depth of ejector groove, avoiding interference with the installation of the lower die. When installing the upper mold, the upper mold is fitted along the slide rod, allowing the slide rod to slide through the upper mold. Then, the connecting rod of the external pressure output end is inserted into the connecting pipe, so that the slider fits against the inner wall of the connecting pipe. Then, the connecting cylinder is rotated, and it is screwed into the connecting pipe through the internal thread, moves downward and finally presses the slider, thereby firmly connecting the upper mold to the external pressure equipment. The threaded connection between the connecting pipe and the connecting cylinder simplifies the disassembly and assembly process of the upper mold. During the stamping operation, the external pressure output end drives the slider to move downward through the connecting rod. The slider compresses the disc spring assembly inside the connecting tube. The disc spring assembly generates elastic deformation to absorb part of the impact energy. The disc spring assembly provides elastic support, reducing the rigid impact on the mold and press at the moment of contact. At the same time, the upper mold moves steadily downward along the slide rod, cooperating with the lower mold to complete the sheet metal stamping.

[0015] When mold replacement or maintenance is required, the motor is started in reverse. The motor drives transmission rod I and transmission rod II to rotate in the opposite direction. Transmission rod I drives threaded rod I to rotate in the opposite direction through worm gear I and worm wheel I, causing the locking wedge block to slide away from the lower mold along the locking groove and completely disengage from the locking groove without the need for additional tools, achieving rapid release of the locking state. During the process, transmission rod II drives threaded rod II to rotate in the opposite direction through worm gear II and worm wheel II, causing the ejector wedge block to slide towards the lower mold along the ejector groove, insert into the ejector groove, and continuously push the lower mold upward, gradually separating the lower mold from the mold base. Through the cooperation of the locking assembly and the ejector assembly, the mold is quickly separated, and the operator can directly remove the lower mold for cleaning or replacement. The entire process is carried out under the protection of the outer casing, reducing the risk of accidental contact and extending the service life of the mechanism.

[0016] Beneficial effects: In this utility model, the easily disassembled sheet metal stamping die, through the cooperation of the locking component and the ejection component, can realize the quick installation and separation of the die; when it is necessary to replace or maintain the die, the drive component drives the locking wedge block to exit from the locking groove, and at the same time the ejection wedge block extends into the ejection groove to lift the lower die upward. The whole process does not require the use of additional tools, effectively shortening the time required for die disassembly and assembly, and improving the efficiency of production operations; In this utility model, the easily disassembled sheet metal stamping die, through a transmission system composed of a transmission rod, a synchronous belt, and bevel gears, ensures the synchronous execution of locking and ejection actions on both sides; the transmission structure of the worm gear and worm has self-locking characteristics, which can maintain the stability of the locked state during the stamping operation and prevent the die from loosening due to equipment vibration; this drive method operates smoothly, and each moving part works under the protection of the outer shell, reducing the safety risk caused by accidental contact and extending the service life of the mechanism; In this utility model, the easily disassembled sheet metal stamping die provides elastic support for the upper die through a threaded connection between the connecting pipe and the connecting cylinder and an internally installed disc spring assembly. At the moment of contact during the stamping action, the disc spring assembly can absorb part of the impact energy, reducing the rigid impact on the die and the press. This connection structure ensures the working stability of the upper die while simplifying the disassembly and assembly process of the upper die, providing convenience for daily maintenance. In this invention, the locking and ejection components work together to allow for quick assembly and disassembly of the mold without additional tools, thus shortening the time and improving efficiency. The transmission system ensures synchronized action, the worm gear self-locking ensures stable locking, and the outer shell protects against safety risks and extends the life of the mechanism. The connecting pipe and disc spring reduce impact and simplify the assembly and disassembly of the upper mold, providing convenience for daily maintenance. Attached Figure Description

[0017] Figure 1This is a three-dimensional structural diagram of a sheet metal stamping die that is easy to disassemble, as proposed in this utility model. Figure 2 This is a partially exploded three-dimensional structural diagram of a sheet metal stamping die that is easy to disassemble, as proposed in this utility model. Figure 3 This is a partial exploded three-dimensional structural diagram of a sheet metal stamping die that is easy to disassemble, as proposed in this utility model. Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the connecting pipe of a sheet metal stamping die that is easy to disassemble, as proposed in this utility model.

[0018] In the diagram: 1. Mold base; 101. Locking groove; 102. Ejection groove; 2. Lower mold; 201. Locking groove; 202. Ejection groove; 3. Slide rod; 4. Upper mold; 5. Locking wedge block; 6. Ejection wedge block; 7. Fixing ring I; 8. Threaded rod I; 9. Motor; 10. Transmission rod I; 11. Housing; 12. Synchronous pulley; 13. Synchronous belt; 14. Worm gear I; 15. Worm I; 16. Transmission rod II; 17. Bevel gear; 18. Connecting pipe; 19. Slider; 20. Connecting rod; 21. Connecting cylinder; 22. Disc spring assembly; 23. Fixing ring II; 24. Threaded rod II; 25. Worm gear II; 26. Worm II. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In one embodiment: Refer to Figure 1-4 A stamping die includes a die base 1, a lower die 2, and an upper die 4. The die base 1 serves as the mounting base for the die. The lower die 2 is directly embedded in the top of the die base 1, which initially positions the lower die 2. Four sliding rods 3 are symmetrically fixedly connected to the top of the lower die 2. The four sliding rods 3 slide through the upper die 4, providing guidance for the up-and-down movement of the upper die 4, ensuring precise alignment between the upper die 4 and the lower die 2 during stamping, and improving stamping accuracy.

[0021] Two locking grooves 101 are formed on the inner walls of the two sides of the mold base 1 that are far apart from each other. Each locking groove 101 is provided with a locking component. The locking component is the core structure for achieving stable fixation of the lower mold 2. The locking component includes a locking wedge block 5 that is slidably set in the locking groove 101. A fixing ring I7 corresponding to the locking groove 101 is fixedly set on the outer wall of the mold base 1. A threaded rod I8 is rotatably connected to the inner wall of the fixing ring I7. One end of the threaded rod I8 extends rotatably into the interior of the corresponding locking groove 101. A threaded hole I that matches the threaded rod I8 is formed on the locking wedge block 5. The threaded rod I8 is threadedly connected to the threaded hole I. The locking assembly also includes a worm gear I14 and a worm I15. The worm gear I14 is fixedly sleeved on the threaded rod I8, and the worm I15 is fixedly sleeved on the corresponding transmission rod I10. The worm gear I14 and the worm I15 are meshed and connected. The transmission structure of the worm gear has a self-locking characteristic, which can maintain a stable locked state during the stamping operation and prevent the mold from loosening due to equipment vibration.

[0022] Ejection grooves 102 are provided on the inner walls of the other two sides of the mold base 1, which are far apart from each other. Each ejection groove 102 is provided with an ejection assembly. The ejection assembly cooperates with the locking assembly to realize the quick assembly and disassembly of the lower mold 2. The ejection assembly includes an ejection wedge block 6 slidably disposed in the ejection groove 102. A fixing ring II 23 corresponding to the ejection groove 102 is fixedly disposed on the outer wall of the mold base 1. A threaded rod II 24 is rotatably connected to the inner wall of the fixing ring II 23. One end of the threaded rod II 24 extends rotatably into the interior of the corresponding ejection groove 102. A threaded hole II is provided on the ejection wedge block 6 that matches the threaded rod II 24. The threaded rod II 24 is threadedly connected to the threaded hole II. The ejection assembly also includes a worm gear II 25 and a worm II 26. The worm gear II 25 is fixedly sleeved on the threaded rod II 24, and the worm II 26 is fixedly sleeved on the corresponding transmission rod II 16. The worm gear II 25 and the worm II 26 mesh to ensure stable transmission of the ejection action.

[0023] A drive assembly is provided on the outer side of the mold base 1 to drive the locking wedge block 5 and the ejecting wedge block 6 to move simultaneously. The drive assembly includes two transmission rods I 10 rotatably mounted on both sides of the mold base 1 and two transmission rods II 16 rotatably mounted on the other two sides of the mold base 1. Synchronous pulleys 12 are fixedly sleeved at both ends of the two transmission rods I 10, and the same synchronous belt 13 is driven through the two corresponding synchronous pulleys 12. The synchronous pulleys 12 and the synchronous belt 13 cooperate to ensure that the two transmission rods I 10 rotate synchronously. A housing 11 is fixedly mounted on the outer side of the mold base 1, and a motor 9 is fixedly mounted on the outer side of the housing 11. The output end of the motor 9 is fixedly connected to one of the transmission rods I 10. The housing 11 protects the internal moving parts, reduces the safety risk caused by accidental contact, and extends the service life of the mechanism. Two bevel gears 17 are fitted on one end of each of the two transmission rods II 16 and on one of the transmission rods I 10. There are two bevel gears 17 on the transmission rod I 10. The bevel gears 17 on the two transmission rods II 16 mesh with the corresponding bevel gears 17 on the transmission rod I 10. When the motor 9 drives, the rotation directions of the threaded rod I 8 and the threaded rod II 24 are always opposite, realizing the linkage control of locking and ejection actions.

[0024] The lower mold 2 has locking grooves 201 on both sides corresponding to the locking wedge blocks 5. When the lower mold 2 is embedded in the mold base 1 and locked, the locking wedge blocks 5 are inserted into the corresponding locking grooves 201 to fix the lower mold 2. The bottom of the lower mold 2 has an ejection groove 202 corresponding to the ejection wedge blocks 6. When the lower mold 2 is disassembled, the ejection wedge blocks 6 are inserted into the corresponding ejection grooves 202 to lift the lower mold 2.

[0025] This application can be used in the field of sheet metal stamping technology, or in other fields applicable to this application.

[0026] In another embodiment: Reference Figure 4 An improvement upon Embodiment 1: A easily disassembled sheet metal stamping die, applied to the field of sheet metal stamping technology, is provided. A connecting pipe 18 is fixedly mounted on the top of the upper die 4. A slider 19 is slidably connected inside the connecting pipe 18. A connecting rod 20 is fixedly connected to the top of the slider 19. The connecting rod 20 is fixedly connected to an external pressure output end. A connecting sleeve 21 is fitted onto the connecting rod 20. The connecting sleeve 21 has an internal thread, and the outer wall of the connecting pipe 18 has an external thread matching the internal thread. The internal and external threads are threadedly connected, simplifying the disassembly and assembly process of the upper die and facilitating daily maintenance. A disc spring assembly 22 is installed inside the connecting pipe 18. The top and bottom ends of the disc spring assembly 22 abut against the bottom end of the slider 19 and the bottom inner wall of the connecting pipe 18, respectively. At the moment of contact during stamping, the disc spring assembly 22 can absorb some of the impact energy, reducing the rigid impact on the die and press.

[0027] However, as is well known to those skilled in the art, the working principle and wiring method of motor 9 are conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0028] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sheet metal stamping die that is easy to disassemble, comprising a die base (1), a lower die (2), and an upper die (4), characterized in that, The lower mold (2) is embedded in the top of the mold base (1), and four sliding rods (3) are symmetrically fixedly connected to the top of the lower mold (2). The four sliding rods (3) slide through the upper mold (4). Two locking grooves (101) are provided on the inner walls of the two sides of the mold base (1) that are far apart from each other, and a locking component is provided in each locking groove (101). The locking component includes a locking wedge block (5) that is slidably disposed in the locking groove (101). A fixing ring I (7) corresponding to the locking groove (101) is fixedly provided on the outer wall of the mold base (1). A threaded rod I (8) is rotatably connected to the inner wall of the fixing ring I (7). One end of the threaded rod I (8) extends rotatably into the interior of the corresponding locking groove (101). A threaded hole I that matches the threaded rod I (8) is provided on the locking wedge block (5). The threaded rod I (8) is threadedly connected to the threaded hole I. The mold base (1) has ejection grooves (102) on its two outer sides, which are far apart from each other. Each ejection groove (102) is provided with an ejection assembly. The ejection assembly includes an ejection wedge block (6) that is slidably disposed in the ejection groove (102). The outer wall of the mold base (1) is fixedly provided with a fixing ring II (23) corresponding to the ejection groove (102). The inner wall of the fixing ring II (23) is rotatably connected with a threaded rod II (24). One end of the threaded rod II (24) extends rotatably into the interior of the corresponding ejection groove (102). The ejection wedge block (6) is provided with a threaded hole II that matches the threaded rod II (24). The threaded rod II (24) is threadedly connected to the threaded hole II. The outer side of the mold base (1) is provided with a drive assembly that drives the locking wedge block (5) and the ejection wedge block (6) to move simultaneously. The drive assembly includes two transmission rods I (10) rotatably disposed on both sides of the mold base (1) and two transmission rods II (16) rotatably disposed on the other two sides of the mold base (1).

2. The easily disassembled sheet metal stamping die according to claim 1, characterized in that, The locking assembly also includes a worm gear I (14) and a worm I (15). The worm gear I (14) is fixedly sleeved on the threaded rod I (8), and the worm I (15) is fixedly sleeved on the corresponding transmission rod I (10). The worm gear I (14) and the worm I (15) are meshed together.

3. The easily disassembled sheet metal stamping die according to claim 1, characterized in that, The ejector assembly also includes a worm gear II (25) and a worm II (26). The worm gear II (25) is fixedly sleeved on the threaded rod II (24), and the worm II (26) is fixedly sleeved on the corresponding transmission rod II (16). The worm gear II (25) and the worm II (26) mesh with each other.

4. The easily disassembled sheet metal stamping die according to claim 1, characterized in that, Both ends of the two transmission rods I (10) are fixedly fitted with synchronous pulleys (12), and the two corresponding synchronous pulleys (12) are connected to the same synchronous belt (13).

5. A sheet metal stamping die that is easy to disassemble according to claim 4, characterized in that, A housing (11) is fixedly installed on the outside of the mold base (1), and a motor (9) is fixedly installed on the outside of the housing (11). The output end of the motor (9) is fixedly connected to one of the transmission rods I (10).

6. A sheet metal stamping die that is easy to disassemble according to claim 5, characterized in that, A bevel gear (17) is fitted on one end of each of the two transmission rods II (16) and on one of the transmission rods I (10). There are two bevel gears (17) on the transmission rod I (10). The bevel gears (17) on the two transmission rods II (16) mesh with the corresponding bevel gears (17) on the transmission rod I (10). When the motor (9) drives, the rotation directions of the threaded rod I (8) and the threaded rod II (24) are always opposite.

7. A sheet metal stamping die that is easy to disassemble according to claim 1, characterized in that, A connecting pipe (18) is fixedly installed on the top of the upper mold (4). A slider (19) is slidably connected inside the connecting pipe (18). A connecting rod (20) is fixedly connected to the top of the slider (19). The connecting rod (20) is fixedly connected to the external pressure output end. A connecting sleeve (21) is sleeved on the connecting rod (20). An internal thread is opened inside the connecting sleeve (21). An external thread matching the internal thread is opened on the outer wall of the connecting pipe (18). The internal thread and the external thread are threadedly connected.

8. A sheet metal stamping die that is easy to disassemble according to claim 7, characterized in that, The connecting tube (18) is equipped with a disc spring assembly (22), the top and bottom of which abut against the bottom of the slider (19) and the bottom inner wall of the connecting tube (18), respectively.

9. A sheet metal stamping die that is easy to disassemble according to claim 1, characterized in that, The lower mold (2) has locking grooves (201) on both sides corresponding to the locking wedge block (5). When the lower mold (2) is embedded in the mold base (1) and locked, the locking wedge block (5) is inserted into the corresponding locking groove (201). The bottom of the lower mold (2) has an ejection groove (202) corresponding to the ejection wedge block (6). When the lower mold (2) is disassembled, the ejection wedge block (6) is inserted into the corresponding ejection groove (202).

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