Household appliance sheet metal stamping die convenient to replace

Abstract

The application discloses a household appliance metal plate stamping die convenient to replace, and belongs to the technical field of stamping dies. The household appliance metal plate stamping die convenient to replace comprises an upper die plate, a connecting sleeve is fixedly arranged at the bottom of the upper die plate, a stamping head is detachably arranged at the bottom of the upper die plate, and a locking assembly is detachably arranged between the upper die plate and the stamping head. The stamping head and the upper die plate are locked and connected through the locking assembly, the wedge-shaped block A in the locking assembly is driven by the screw B to drive the wedge-shaped block B to be pressed against the top of the locking cavity, the locking and limiting in the horizontal direction of the locking sleeve are realized, the connecting column and the connecting sleeve are connected under the action of the locking sleeve, the screw B is reversely rotated during disassembly, and therefore, the problem that the stamping head is vibrated during repeated stamping, the connection of the stamping head is affected by vibration and is possibly failed, and the safety hidden danger of the die during household appliance metal plate stamping processing is caused is effectively solved, and the stamping head is convenient to replace and the processing stability of the stamping head is ensured.

Description

Technical Field

[0001] This application relates to the field of stamping die technology, and more specifically, to a replaceable sheet metal stamping die for household appliances. Background Technology

[0002] Home appliance sheet metal stamping dies are core process equipment in home appliance manufacturing. They are mainly used to process metal sheets (such as stainless steel, aluminum alloy, carbon steel, etc.) into complex-shaped parts such as home appliance shells and structural components. During use, stamping dies need to be replaced according to processing requirements due to wear of the stamping head or stamping type.

[0003] In related technologies, for example, the prior art patent with publication number CN222403077U provides a mold for easy mold changing of sheet metal parts for home appliances. This device drives the push block to slide out from the inside of the snap-fit ​​rod by pulling the push handle. Then, the snap-fit ​​unit generates elastic force to push the mold cavity to retract into the inside of the snap-fit ​​rod and slide out from the inside of the locking groove. Then, by pulling the snap-fit ​​rod out from the inside of the locking groove, the snap-fit ​​plate drives the punch head to fall out from the inside of the fixed plate for disassembly. Then, the new punch head drives the snap-fit ​​plate to insert into the inside of the fixed plate. Then, the snap-fit ​​rod is inserted into the inside of the locking groove. Then, the push handle is pushed to drive the push block to insert into the inside of the snap-fit ​​rod, squeezing the end of the locking block. This causes the locking block to be squeezed and slide to both sides into the inside of the locking groove for quick snap-fit ​​and fixation, thus completing the replacement of the punch head and effectively improving the processing efficiency of sheet metal parts.

[0004] Although the existing technical solutions described above have solved the problems in the background technology, when the push block locks the locking block, the locking block exerts pressure on the spring, and the locking block clamps the periphery of the push block under the elastic force of the spring. Since the stamping head will vibrate during repeated stamping, the push block may be axially disengaged from the locking block due to the vibration, which may cause the connection of the stamping head to fail, resulting in safety hazards in the stamping process of home appliance sheet metal.

[0005] In view of this, we propose a replaceable sheet metal stamping die for home appliances. Utility Model Content

[0006] The purpose of this application is to provide a replaceable sheet metal stamping die for home appliances, which can effectively solve the problem in the prior art that the stamping head will vibrate during repeated stamping, and the vibration may cause the connection of the stamping head to fail, resulting in safety hazards in the stamping process of sheet metal for home appliances. The application achieves the effect of easy replacement of the stamping head and ensuring the processing stability of the stamping head.

[0007] This application provides a replaceable sheet metal stamping die for home appliances, comprising:

[0008] The upper template has a connecting sleeve fixedly installed at its bottom;

[0009] The stamping head is detachably mounted at the bottom of the upper template;

[0010] The locking assembly is detachably mounted between the upper template and the punch head;

[0011] The punching head includes a connecting post inserted into the inner side of the connecting sleeve. The inner sides of the connecting sleeve and the connecting post are respectively provided with a locking hole A and a locking hole B, and a locking cavity is provided at the middle position inside the connecting post.

[0012] The locking assembly includes a lock sleeve that is slidably inserted into the inner sides of lock holes A and B. The top of the lock sleeve has a sliding hole, and a wedge block B is slidably disposed inside the sliding hole. A wedge block A is slidably disposed inside the lock sleeve. The wedge block A drives the wedge block B to press against the top of the lock cavity under the drive of the screw B.

[0013] As an optional solution to the technical solution of this application, it also includes a lower template located below the upper template and a forming mold base detachably disposed on the top of the lower template, wherein the top of the forming mold base is provided with a forming groove;

[0014] The stamping head also includes a stamping block fixedly disposed at the bottom of the connecting column, the stamping block cooperating with the forming groove;

[0015] The top of the forming mold base is detachably equipped with a positioning rod, both ends of which are conical. A surrounding plate is fixedly installed on the outside of the connecting column. Positioning holes are opened on the side of the surrounding plate that is close to the forming mold base. The positioning holes cooperate with the two ends of the positioning rod.

[0016] As an optional solution to the technical solution of this application, a sliding rod is fixedly installed at each of the four corners of the top of the lower template, and a sliding sleeve is slidably installed on the outside of each sliding rod. The sliding sleeve is fixedly installed on the inside of the upper template, and a spring is installed on the outside of the sliding rod at the bottom of the sliding sleeve. The upper template is connected to the stamping drive equipment, and the lower template is fixedly connected to the stamping table.

[0017] As an optional solution to the technical solution of this application, the top of the lower template is fixedly provided with a fixing seat around the forming mold base. The fixing seat is threadedly connected with a screw A. The end of the screw A near the forming mold base is rotatably provided with a positioning plate. The other end of the screw A is fixedly provided with a nut A.

[0018] As an optional solution to the technical solution of this application, a limiting plate is fixedly provided at one end of the locking sleeve located outside the connecting sleeve, and a screw B is threaded on the inner side of the limiting plate. One end of the screw B is rotatably connected to the wedge block A, and a nut B is fixedly provided at the other end of the screw B.

[0019] As an optional solution to the technical solution of this application, a groove is provided on the side of the wedge block A near the wedge block B, and a magnet block is fixedly provided at the bottom of the wedge block B corresponding to the groove.

[0020] As an optional solution to the technical solution of this application, the inner side of the connecting sleeve is provided with a socket, the top of the socket is in the shape of a frustum, and the top of the connecting post cooperates with the top of the socket.

[0021] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0022] (1) This application uses a locking assembly to lock the stamping head and the upper template. The wedge block A in the locking assembly is driven by the screw B to press the wedge block B against the top of the locking cavity, thereby achieving locking and limiting of the locking sleeve in the horizontal direction. Then, under the action of the locking sleeve, the connecting column is connected to the connecting sleeve. When disassembling, the screw B can be rotated in the opposite direction. Therefore, it effectively solves the problem that the stamping head will vibrate during repeated stamping, and the vibration may cause the connection of the stamping head to fail, resulting in safety hazards in the stamping process of home appliance sheet metal. Thus, it is easy to replace the stamping head and ensure the processing stability of the stamping head.

[0023] (2) This application provides a positioning rod between the stamping block and the forming die base. The positioning rod is used to position the stamping block and the forming die base when they are replaced. Based on the positioning, the stamping head is connected to the connecting sleeve by the locking assembly. The forming die base is fixed by the positioning plate on the top of the lower die plate to prevent the stamping block and the forming die base from being replaced separately, which would cause large errors and affect the stamping quality of the sheet metal of the home appliance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a replaceable sheet metal stamping die for home appliances, as disclosed in a preferred embodiment of this application.

[0025] Figure 2 This is a schematic diagram of the bottom structure of the upper template in a replaceable sheet metal stamping die for home appliances, as disclosed in a preferred embodiment of this application.

[0026] Figure 3 This is a cross-sectional view of the stamping block and locking assembly in a replaceable sheet metal stamping die for home appliances, as disclosed in a preferred embodiment of this application.

[0027] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0028] Explanation of the labels in the diagram:

[0029] 1. Upper template; 11. Connecting sleeve; 12. Insertion hole; 13. Lock hole A; 14. Sliding sleeve;

[0030] 2. Lower template; 21. Slide rod; 22. Spring; 23. Fixing base; 24. Screw A; 25. Positioning plate; 26. Nut A;

[0031] 3. Stamping head; 31. Stamping block; 32. Connecting post; 33. Lock hole B; 34. Lock cavity; 35. Enclosure plate; 36. Positioning hole;

[0032] 4. Locking assembly; 41. Locking sleeve; 42. Sliding hole; 43. Wedge block A; 44. Wedge block B; 45. Screw B; 46. Nut B; 47. Limiting plate; 48. Slide groove; 49. Magnet block;

[0033] 5. Molding mold base; 51. Positioning rod. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] Reference Figures 1-4 This application discloses a replaceable sheet metal stamping die for home appliances, including an upper template 1, a stamping head 3, and a locking assembly 4. A connecting sleeve 11 is fixedly provided at the bottom of the upper template 1. The stamping head 3 is detachably provided at the bottom of the upper template 1. The locking assembly 4 is detachably provided between the upper template 1 and the stamping head 3. The stamping head 3 includes a connecting post 32 inserted into the inner side of the connecting sleeve 11. Locking holes A13 and B33 are respectively opened on the inner sides of the connecting sleeve 11 and the connecting post 32, and a locking cavity 34 is opened at the middle position inside the connecting post 32. The locking assembly 4 includes a locking sleeve 41 slidably inserted into the inner side of the locking holes A13 and B33. A sliding hole 42 is opened at the top of the locking sleeve 41. A wedge block B44 is slidably provided inside the sliding hole 42. A wedge block A43 is slidably provided inside the locking sleeve 41. The wedge block A43 is driven by the screw B45 to press the wedge block B44 against the top of the locking cavity 34. A limiting plate 47 is fixedly installed at one end of the locking sleeve 41 located outside the connecting sleeve 11. A screw B45 is threaded on the inner side of the limiting plate 47. One end of the screw B45 is rotatably connected to the wedge block A43, and a nut B46 is fixedly installed at the other end of the screw B45. A groove 48 is provided on the side of the wedge block A43 near the wedge block B44, and a magnet block 49 is fixedly installed at the bottom of the wedge block B44 corresponding to the groove 48.

[0036] When connecting the stamping head 3 and the upper template 1, the connecting post 32 is inserted into the inner side of the connecting sleeve 11, aligning the locking holes A13 and B33 on the inner sides of the connecting sleeve 11 and the connecting post 32. Then, the locking sleeve 41 is inserted into the inner sides of the locking holes A13 and B33. The screw B45 is then rotated by the nut B46 to drive the wedge block A43 to slide inside the locking sleeve 41, causing the locking sleeve 41 to slide upwards along the sliding hole 42 via the wedge block B44. Finally, the wedge block B44 presses against the bottom of the locking cavity 34, preventing the wedge block A43 from rotating further and thus locking the connecting post 32 and the connecting sleeve 11. The locking sleeve 41 also limits the horizontal movement of the connecting sleeve 11 and the connecting post 32, preventing them from separating. Furthermore, the wedge block B44 limits the horizontal movement of the locking sleeve 41, preventing it from being dislodged from the locking holes A13 and B33 during the stamping process due to vibration. The inner side of 3 is designed to ensure the stable operation of the stamping block 31 at the bottom of the connecting column 32, making it safer to use. When disassembling and replacing the stamping block 31, the wedge block A43 is driven to slide outward by rotating the screw B45, so that the wedge block A43 gradually releases its support for the wedge block B44. At this time, the wedge block B44 slides along the sliding hole 42 into the lock sleeve 41 by its own weight. Compared with the traditional spring-driven reset, the reset method of the wedge block B44 is easier and the processing difficulty is lower, which reduces the difficulty of manufacturing and processing the locking assembly 4. Under the action of the magnet block 49, the wedge block B44 is attracted and always located outside the wedge block A43, preventing the wedge block B44 from separating from the wedge block A43. At the same time, the wedge block B44 is driven to move into the lock sleeve 41 when the wedge block A43 slides out, thereby releasing the horizontal restriction on the lock sleeve 41, making it convenient to replace the stamping block 31 after the lock sleeve 41 is pulled out.

[0037] Reference Figures 1-4The system also includes a lower template 2 located below the upper template 1 and a forming mold base 5 detachably mounted on top of the lower template 2, with a forming groove on the top of the forming mold base 5; the stamping head 3 also includes a stamping block 31 fixedly mounted at the bottom of the connecting column 32, the stamping block 31 cooperating with the forming groove; wherein, a positioning rod 51 is detachably mounted on the top of the forming mold base 5, both ends of the positioning rod 51 being conical, a surrounding plate 35 is fixedly mounted on the outside of the connecting column 32, and positioning holes 36 are opened on the side of the surrounding plate 35 that is close to the forming mold base 5, the positioning holes 36 cooperating with the two ends of the positioning rod 51. Sliding rods 21 are fixedly mounted at the four corners of the top of the lower template 2, and sliding sleeves 14 are slidably mounted on the outside of the sliding rods 21, the sliding sleeves 14 being fixedly mounted on the inside of the upper template 1, and springs 22 are mounted on the outside of the sliding rods 21 at the bottom of the sliding sleeves 14; the upper template 1 is connected to the stamping drive equipment, and the lower template 2 is fixedly connected to the stamping table. The top of the lower template 2 is fixedly provided with fixing seats 23 around the forming mold base 5. The inner side of each fixing seat 23 is threaded with a screw A24. The end of the screw A24 near the forming mold base 5 is rotatably provided with a positioning plate 25, and the other end of the screw A24 is fixedly provided with a nut A26. The inner side of the connecting sleeve 11 has an insertion hole 12. The top of the insertion hole 12 is truncated cone-shaped, and the top of the connecting post 32 cooperates with the top of the insertion hole 12.

[0038] In fact, because there is a gap between the stamping block 31 and the forming groove on the top of the forming mold base 5 to prevent sheet metal from being damaged, when installing the stamping block 31 and the forming mold base 5, the stamping block 31 cooperates with the top of the positioning rod 51 through the positioning hole 36 at the bottom of the surrounding plate 35. At this time, the other end of the positioning rod 51 is inserted into the inside of the positioning hole 36 on the top of the forming mold base 5, realizing precise positioning between the forming mold base 5 and the stamping block 31. Then, the forming mold base 5 is placed on the top of the lower template 2, and the upper template 1 is moved downward by the stamping drive equipment, so that the connecting sleeve 11 is fitted onto the outside of the connecting column 32, and finally the top of the connecting column 32 is... The top of the part and the socket 12 cooperate with each other. Under the action of the socket 12, the connecting sleeve 11 and the stamping block 31 are accurately positioned. During the positioning process, the stamping head 3 will drive the forming mold base 5 to slide on the top of the lower template 2 through the positioning rod 51, so that the forming mold base 5 moves to the position aligned with the stamping block 31. Then, the screw A24 is rotated by the nut A26 to drive the positioning plate 25 to clamp the forming mold base 5 around its perimeter, so as to ensure that the forming mold base 5 is located in the stamping position of the stamping block 31 after installation, so as to ensure the stamping effect of the sheet metal of the home appliance. Finally, the connecting column 32 and the connecting sleeve 11 are locked and connected by the locking assembly 4.

[0039] In summary, when the easily replaceable sheet metal stamping die for home appliances disclosed in this application is used, the upper template 1 is moved downward by an external drive device. The upper template 1 then drives the sliding sleeve 14 to compress the spring 22 on the outside of the sliding rod 21 until the upper template 1 drives the stamping block 31 to cooperate with the forming die base 5 at the top of the lower template 2 to complete the stamping.

[0040] When the stamping block 31 needs to be replaced, the screw B45 is rotated to drive the wedge block A43 to slide outward, so that the wedge block A43 gradually releases its support for the wedge block B44. At this time, the wedge block B44 slides along the sliding hole 42 into the locking sleeve 41 by its own weight, thereby releasing the horizontal restriction on the locking sleeve 41. Then, the locking sleeve 41 can be pulled out to replace the connecting post 32. During replacement, the connecting post 32 is inserted into the inner side of the connecting sleeve 11, so that the connecting sleeve 11 and The lock holes A13 and B33 on the inner side of the connecting post 32 are aligned with each other. Then, the lock sleeve 41 is inserted into the inner side of the lock holes A13 and B33. Then, the screw B45 is rotated by the nut B46 to drive the wedge block A43 to slide inside the lock sleeve 41, so that the lock sleeve 41 slides upward along the sliding hole 42 through the wedge block B44. Finally, the wedge block B44 is pressed against the bottom of the lock cavity 34. At this time, the wedge block A43 can no longer rotate, thus achieving the locking work of the connecting post 32 and the connecting sleeve 11.

Claims

1. A home appliance sheet metal stamping die that facilitates replacement, characterized by, Include: Upper template (1), with a connecting sleeve (11) fixedly provided at the bottom of the upper template (1); The stamping head (3) is detachably mounted at the bottom of the upper template (1); The locking assembly (4) is detachably disposed between the upper template (1) and the punch head (3); The punching head (3) includes a connecting post (32) inserted into the inner side of the connecting sleeve (11). The inner sides of the connecting sleeve (11) and the connecting post (32) are respectively provided with a lock hole A (13) and a lock hole B (33), and a lock cavity (34) is provided in the middle position inside the connecting post (32). The locking assembly (4) includes a lock sleeve (41) that is slidably inserted into the lock hole A (13) and the lock hole B (33). The top of the lock sleeve (41) is provided with a sliding hole (42). A wedge block B (44) is slidably disposed inside the sliding hole (42). A wedge block A (43) is slidably disposed inside the lock sleeve (41). The wedge block A (43) is driven by the screw B (45) to press the wedge block B (44) against the top of the lock cavity (34).

2. The home appliance sheet metal stamping die for easy replacement according to claim 1, characterized in that: It also includes a lower template (2) located below the upper template (1) and a forming mold base (5) detachably disposed on the top of the lower template (2), wherein the top of the forming mold base (5) is provided with a forming groove; The stamping head (3) also includes a stamping block (31) fixedly disposed at the bottom of the connecting column (32), the stamping block (31) cooperating with the forming groove; The top of the forming mold base (5) is detachably provided with a positioning rod (51), both ends of the positioning rod (51) are conical, and a surrounding plate (35) is fixedly provided on the outside of the connecting column (32). The surrounding plate (35) and the side of the forming mold base (5) that are close to each other are provided with positioning holes (36), and the positioning holes (36) cooperate with the two ends of the positioning rod (51).

3. The metal plate stamping die for household appliance facilitating replacement according to claim 2, characterized in that: The lower template (2) is fixedly provided with slide rods (21) at the four corners of the top. Slide sleeves (14) are slidably provided on the outside of the slide rods (21). The slide sleeves (14) are fixedly provided on the inside of the upper template (1). A spring (22) is provided on the outside of the slide rods (21) at the bottom of the slide sleeves (14). The upper template (1) is connected to the stamping drive equipment, and the lower template (2) is fixedly connected to the stamping table.

4. The metal plate stamping die for household appliance facilitating replacement according to claim 2, characterized in that: The top of the lower template (2) is fixedly provided with a fixing seat (23) around the forming mold base (5). The fixing seat (23) is threadedly connected with a screw A (24). The end of the screw A (24) near the forming mold base (5) is rotatably provided with a positioning plate (25). The other end of the screw A (24) is fixedly provided with a nut A (26).

5. The replaceable sheet metal stamping die for household appliances of claim 1, wherein: The locking sleeve (41) is fixedly provided with a limiting plate (47) at one end outside the connecting sleeve (11). A screw B (45) is threaded on the inner side of the limiting plate (47). One end of the screw B (45) is rotatably connected to the wedge block A (43), and the other end of the screw B (45) is fixedly provided with a nut B (46).

6. The home appliance sheet metal stamping die for easy replacement of claim 1, wherein: A groove (48) is provided on the side of the wedge block A (43) near the wedge block B (44), and a magnet block (49) is fixedly provided at the bottom of the wedge block B (44) corresponding to the groove (48).

7. The home appliance sheet metal stamping die for easy replacement according to claim 1, characterized in that: The connecting sleeve (11) has an insertion hole (12) on its inner side. The top of the insertion hole (12) is truncated cone-shaped, and the top of the connecting post (32) cooperates with the top of the insertion hole (12).

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