A rotating shaft stabilizing structure of a sheet metal stamping die turnover mold

Abstract

This utility model belongs to the field of sheet metal stamping die technology, specifically disclosing a rotating shaft stabilizing structure for sheet metal stamping die flipping. This utility model includes a die base and a lower die disposed on one side of the die base. Rotating shafts are fixedly connected to both sides of the lower die, and each rotating shaft is rotatably connected to the die base via a bearing. Stabilizing components are provided inside both rotating shafts. With the stabilizing components, there is no need to disassemble or replace the rotating shafts or bearings; only the rotating collar needs to be rotated. This significantly reduces maintenance difficulty, downtime, and maintenance costs, adapting to efficient production line operation. Furthermore, by ensuring the outer wall curvature of the filling block matches the rotating shaft, it can tightly fit the inner wall of the bearing, eliminating rotating shaft wobbling and ensuring stable lower die flipping, guaranteeing the dimensional accuracy, forming quality, and processing consistency of the stamped parts. Simultaneously, the adjustability of the components can accommodate different degrees of gaps, eliminating the need for frequent parts replacement and improving die adaptability and durability.

Description

Technical Field

[0001] This application relates to the field of sheet metal stamping die technology, and more specifically, to a rotating shaft stabilizing structure for sheet metal stamping die flipping. Background Technology

[0002] Sheet metal processing is a comprehensive cold working process for thin metal sheets, including shearing, punching / cutting / combined cutting, bending, welding, riveting, splicing, forming, etc. Its significant feature is that the thickness of the same part is consistent. Products processed by the sheet metal industry are called sheet metal parts. When sheet metal parts are processed by stamping dies, the lower die needs to be flipped.

[0003] A search revealed that patent number CN219043588U discloses an automatic die-flipping sheet metal stamping die, which achieves automatic die-flipping of sheet metal stamping dies through a die-flipping mechanism.

[0004] Although the aforementioned patent achieves automatic mold flipping, after a long period of mold flipping, the connecting rod will gradually lose the fitting accuracy between the connecting rod journal and the inner ring of the bearing due to the long-term bearing of the weight load of the mold and the alternating impact stress during the start and stop of the mold flipping. At the same time, long-term high-frequency rotation will cause the bearing itself to wear and age, further amplifying the fitting clearance. As a result, the connecting rod will wobble during later operation. The wobble will lead to a decrease in the positioning accuracy of the mold and instability of the mold flipping action. Utility Model Content

[0005] To address the aforementioned issues, this application provides a rotating shaft stabilization structure for sheet metal stamping die flipping.

[0006] The rotating shaft stabilizing structure for sheet metal stamping die flipping provided in this application adopts the following technical solution:

[0007] A rotating shaft stabilizing structure for sheet metal stamping die flipping includes a die base and a lower die disposed on one side of the die base. Rotating shafts are fixedly connected to both sides of the lower die. Each rotating shaft is rotatably connected to the die base via a bearing. Stabilizing components are provided inside both rotating shafts. A flipping component is provided on one side of the die base.

[0008] Each stabilizing component includes two filling blocks, and each rotating shaft has a collar on its outer wall. Each collar is used to drive the corresponding two filling blocks to extend, thereby stabilizing the rotating shaft and preventing it from shaking.

[0009] Furthermore, each rotating shaft has a cavity inside, and each rotating shaft has openings on both sides.

[0010] Furthermore, each rotating shaft has threads on one side of its outer wall and on the inner wall of its collar, and the inner wall of each collar is threaded to the corresponding rotating shaft's outer wall.

[0011] Furthermore, each rotating shaft has through holes on both sides, each collar has a connecting ring fixedly connected to one side, each rotating shaft has a movable column inside, each connecting ring has corresponding through holes on both sides and is fixedly connected to the corresponding movable column, and each movable column has a pressing block fixedly connected to one side.

[0012] Furthermore, each filling block is located inside the corresponding rotating shaft, and a limiting groove is opened on one side of each filling block. Limiting rods are fixedly connected to both sides of the inner wall of each rotating shaft, and each limiting rod is slidably connected to the corresponding limiting groove.

[0013] Furthermore, the outer wall of each extrusion block is inclined, and each filling block has a groove on the side near the corresponding extrusion block. The structure of each groove is adapted to the outer wall structure of the corresponding extrusion block, and each filling block passes through the corresponding opening.

[0014] Furthermore, each collar and filling block has anti-slip ridges on its outer wall, a fixing post is fixedly connected to one side of the inner wall of each rotating shaft, and an insertion hole is opened on one side of each extrusion block, with the fixing post inserted into the insertion hole.

[0015] With the above technical solution and the setting of stable components, there is no need to disassemble and replace the rotating shaft or bearings. It can be done simply by rotating the collar, which greatly reduces the difficulty of maintenance, downtime and maintenance costs, and is suitable for the efficient operation of the production line.

[0016] Furthermore, the mold-flipping assembly includes a motor, one end of which of the rotating shafts passes through one side of the mold base and is fixedly connected to a first gear. The motor is fixedly installed on one side of the mold base, and a second gear is fixedly connected to the outer wall of the motor's output end. The second gear meshes with the first gear.

[0017] With the above technical solution and the setting of stable components, there is no need to disassemble and replace the rotating shaft or bearings. It can be done simply by rotating the collar, which greatly reduces the difficulty of maintenance, downtime and maintenance costs, and is suitable for the efficient operation of the production line.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] (1) By setting up a stabilizing component, this utility model eliminates the need to disassemble and replace the rotating shaft or bearing. It can be done simply by rotating the collar, which greatly reduces the difficulty of maintenance, downtime and maintenance costs. It is suitable for efficient operation of the production line. Furthermore, by ensuring that the outer wall curvature of the filling block is consistent with the rotating shaft, it can closely fit the inner wall of the bearing, which eliminates the shaking of the rotating shaft and ensures the stability of the lower mold flipping, thus guaranteeing the dimensional accuracy, forming quality and processing consistency of the stamped parts. At the same time, the adjustability of the component can cope with different degrees of gaps, eliminating the need to frequently replace parts and improving the mold adaptability and durability.

[0020] (2) This utility model replaces the traditional manual mold flipping with a mold flipping component, which not only greatly reduces the intensity of manual operation and improves the automation level of mold flipping, but also reduces the operation error and time consumption caused by manual intervention, effectively improves the efficiency of mold flipping, adapts to the continuous operation requirements of the production line, and the gear meshing transmission can avoid mold flipping and shaking or stamping part displacement caused by uneven manual operation force, further ensuring the accuracy of mold flipping and process stability. At the same time, the motor is fixedly installed on the mold base, and the running state is stable and reliable. Compared with manual handling and flipping of mold, it can also reduce the safety risk of manual operation and improve the safety and overall operation efficiency of sheet metal stamping mold flipping operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the lower mold and the rotating shaft of this utility model;

[0023] Figure 3 This is a schematic diagram of the overall structure of the rotating shaft of this utility model;

[0024] Figure 4 This is a schematic diagram of the overall structure of the rotating shaft and collar of this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the rotating shaft of this utility model;

[0026] Figure 6 This is a schematic diagram of the overall structure of the extrusion block and groove of this utility model;

[0027] Figure 7 This is a plan view of the overall structure of the filling block and the extrusion block of this utility model.

[0028] Explanation of reference numerals in the attached drawings: 1. Mold base; 2. Lower mold; 3. Rotating shaft; 4. First gear; 5. Motor; 6. Second gear; 7. Opening; 8. Collar; 9. Moving column; 10. Through hole; 11. Connecting ring; 12. Filling block; 13. Limiting groove; 14. Limiting rod; 15. Fixing column; 16. Insertion hole; 17. Groove; 18. Extrusion block. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Reference Figures 1-7A rotating shaft stabilizing structure for flipping sheet metal stamping dies includes a die base 1 and a lower die 2 disposed on one side of the die base 1. Rotating shafts 3 are fixedly connected to both sides of the lower die 2. Each rotating shaft 3 is rotatably connected to the die base 1 through a bearing. Stabilizing components are provided inside both rotating shafts 3. A flipping assembly is provided on one side of the die base 1.

[0031] Each stabilizing component includes two filling blocks 12, and each rotating shaft 3 has a collar 8 on its outer wall. Each collar 8 is used to drive the corresponding two filling blocks 12 to extend, thereby stabilizing the rotating shaft 3 and preventing it from shaking.

[0032] Reference Figures 1-7 Each rotating shaft 3 has an internal cavity, and each rotating shaft 3 has openings 7 on both sides. The outer wall of one side of each rotating shaft 3 and the inner wall of the collar 8 are threaded. The inner wall of each collar 8 is threaded to the outer wall of the corresponding rotating shaft 3. Each rotating shaft 3 has through holes 10 on both sides. A connecting ring 11 is fixedly connected to one side of each collar 8. Each rotating shaft 3 has a moving post 9 inside. Both sides of each connecting ring 11 pass through the corresponding through holes 10 and are fixedly connected to the corresponding moving post 9. A pressing block 18 is fixedly connected to one side of each moving post 9. Each filling block 12 is located inside the corresponding rotating shaft 3. Each filling block 12 has one... Each side has a limiting groove 13. Each inner wall of each rotating shaft 3 is fixedly connected to a limiting rod 14 on both sides. Each limiting rod 14 is slidably connected to the corresponding limiting groove 13. The outer wall of each extrusion block 18 is inclined. Each filling block 12 has a groove 17 on the side near the corresponding extrusion block 18. The structure of each groove 17 is adapted to the outer wall structure of the corresponding extrusion block 18. Each filling block 12 passes through the corresponding opening 7. Each collar 8 and the outer wall of the filling block 12 are provided with anti-slip ridges. A fixing post 15 is fixedly connected to one side of the inner wall of each rotating shaft 3. An insertion hole 16 is opened on one side of each extrusion block 18. The fixing post 15 is inserted into the insertion hole 16.

[0033] The stabilizing component can fill and prevent shaking when a gap appears between the rotating shaft 3 and the bearing. Specifically, when a gap appears between the rotating shaft 3 and the bearing due to long-term use, firstly, since the outer wall of one side of each rotating shaft 3 and the inner wall of the collar 8 are threaded and connected, the operator can periodically rotate the collar 8 (the anti-slip ridges on its outer wall can increase the operating friction and facilitate the application of force) to move the collar 8 along the axial direction of the rotating shaft 3. At this time, the connecting ring 11, which is fixedly connected to one side of the collar 8, will move synchronously with the collar 8, and the two sides of the connecting ring 11 will drive the moving column 9 inside the rotating shaft 3 to move synchronously through the through hole 10 opened on the outer wall of the rotating shaft 3. As the moving column 9 moves, the pressing block 18 (with an inclined outer wall) fixedly connected to one side will move synchronously towards the filling block 12 until the pressing block 18 is embedded in the groove 17 opened on the side of the filling block 12 (the structure of the groove 17 is adapted to the structure of the outer wall of the pressing block 18 to ensure a tight fit).

[0034] Next, as the extrusion block 18 continues to move, its inclined outer wall will exert a squeezing force on the inner wall of the groove 17, pushing the two filling blocks 12 to move outward along the limiting structure of the inner wall of the rotating shaft 3. The limiting rods 14 fixed on both sides of the inner wall of the rotating shaft 3 will slide along the limiting groove 13 opened on one side of the filling block 12, providing guidance and limiting for the movement of the filling block 12 and preventing it from deviating.

[0035] Finally, the filling block 12 will extend through the pre-set openings 7 on both sides of the rotating shaft 3 to the outside of the rotating shaft 3. Since the outer wall curvature of the filling block 12 is consistent with the outer wall curvature of the rotating shaft 3, when the outer wall of the filling block 12 is in close contact with the inner wall of the bearing, the filling block 12 fills the gap between the rotating shaft 3 and the bearing using its own structure. At the same time, the anti-slip ridges on the outer wall of the filling block 12 can enhance the friction with the inner wall of the bearing, further improving the stability effect and effectively preventing the rotating shaft 3 from shaking due to the gap during rotation. During this process, the fixing post 15 fixed on one side of the inner wall of the rotating shaft 3 will always be inserted into the insertion hole 16 on one side of the extrusion block 18, providing additional support and limit for the movement of the extrusion block 18, ensuring that the entire stabilizing action is accurate and stable.

[0036] By stabilizing the components, the filling block 12 can be extended to fill the gap without disassembling or replacing the rotating shaft 3 or bearings. This significantly reduces equipment maintenance difficulty and downtime, as well as maintenance costs and operational complexity. It is particularly suitable for the high-efficiency operation requirements of production lines. Furthermore, the filling block 12 extends precisely under the guidance of the limiting rod 14 and the limiting groove 13, and its outer wall curvature is consistent with that of the rotating shaft 3, allowing it to fit tightly against the inner wall of the bearing. This not only effectively eliminates the shaking of the rotating shaft 3 caused by the gap, but also ensures that the lower mold 2 maintains a stable posture during the mold flipping process, avoiding the impact of shaking on the dimensional accuracy and forming of the stamped parts. Quality assurance ensures consistent product processing. The anti-slip texture on the outer wall of the filling block 12 enhances the friction with the inner wall of the bearing. Combined with the support and limiting of the pressing block 18 by the fixing column 15, it not only improves the stability of the rotating shaft 3 during rotation but also reduces wear at the gaps, slows down the aging rate of the rotating shaft 3 and the bearing, and extends the service life of the entire mold flipping structure. At the same time, the adjustability of the stabilizing components allows it to cope with different degrees of gap problems without frequent replacement of parts, improving the adaptability and durability of the mold structure, indirectly reducing the overall use and replacement costs of the equipment, and providing a reliable guarantee for long-term stable sheet metal stamping production.

[0037] Reference Figure 1 and Figure 2 The mold-flipping assembly includes a motor 5, one end of which of the rotating shafts 3 passes through one side of the mold base 1 and is fixedly connected to a first gear 4. The motor 5 is fixedly installed on one side of the mold base 1, and a second gear 6 is fixedly connected to the outer wall of the output end of the motor 5. The second gear 6 meshes with the first gear 4.

[0038] Accurate mold flipping is achieved through a mold flipping assembly. The specific operation method is as follows: First, the mold flipping assembly includes a motor 5, and one end of one of the rotating shafts 3 passes through one side of the mold base 1 and is fixedly connected to a first gear 4. The motor 5 is also fixedly installed on one side of the mold base 1. The outer wall of the output end of the motor 5 is also fixedly connected to a second gear 6 that meshes with the first gear 4. Simply start the motor 5, and the output end of the motor 5 will drive the second gear 6 fixed on the outer wall to rotate synchronously. With the meshing transmission relationship between the second gear 6 and the first gear 4, when the second gear 6 rotates, it will accurately drive the first gear 4 and the rotating shaft 3 fixed to it to rotate synchronously. The rotating shaft 3 is fixedly connected to both sides of the lower mold 2. Finally, the rotating shaft 3 will drive the lower mold 2 to stably complete the mold flipping action around the mold base 1, ensuring the accuracy of mold flipping.

[0039] Replacing traditional manual die flipping with a die flipping assembly not only significantly reduces the intensity of manual operation and improves the automation level of die flipping, but also reduces operational errors and time consumption caused by manual intervention, effectively improving die flipping efficiency and adapting to the continuous operation requirements of the production line. Furthermore, the gear meshing transmission can avoid die flipping and shaking or stamping part displacement caused by uneven manual operation force, further ensuring the accuracy of die flipping and process stability. At the same time, the motor 5 is fixedly installed on the die base 1, and its operation is stable and reliable. Compared with manual handling and flipping of the die, it can also reduce the safety risks of manual operation and improve the safety and overall operation efficiency of sheet metal stamping die flipping operations.

[0040] Working principle: When a gap appears between the rotating shaft 3 and the bearing due to long-term use, firstly, since the outer wall of one side of each rotating shaft 3 is threaded and connected to the inner wall of the collar 8, the operator can periodically rotate the collar 8 (the anti-slip ridges on its outer wall can increase the operating friction and facilitate the application of force) to move the collar 8 along the axial direction of the rotating shaft 3. At this time, the connecting ring 11, which is fixedly connected to one side of the collar 8, will move synchronously with the collar 8, and the two sides of the connecting ring 11 will drive the moving column 9 inside the rotating shaft 3 to move synchronously through the through hole 10 opened on the outer wall of the rotating shaft 3. As the moving column 9 moves, the pressing block 18 (with an inclined outer wall) fixedly connected to one side will move synchronously towards the filling block 12 until the pressing block 18 is embedded in the groove 17 opened on the side of the filling block 12 (the structure of the groove 17 is adapted to the structure of the outer wall of the pressing block 18 to ensure a tight fit).

[0041] Next, as the extrusion block 18 continues to move, its inclined outer wall will exert a squeezing force on the inner wall of the groove 17, pushing the two filling blocks 12 to move outward along the limiting structure of the inner wall of the rotating shaft 3. The limiting rods 14 fixed on both sides of the inner wall of the rotating shaft 3 will slide along the limiting groove 13 opened on one side of the filling block 12, providing guidance and limiting for the movement of the filling block 12 and preventing it from deviating.

[0042] Finally, the filling block 12 will extend through the pre-set openings 7 on both sides of the rotating shaft 3 to the outside of the rotating shaft 3. Since the outer wall curvature of the filling block 12 is consistent with the outer wall curvature of the rotating shaft 3, when the outer wall of the filling block 12 is in close contact with the inner wall of the bearing, the filling block 12 fills the gap between the rotating shaft 3 and the bearing using its own structure. At the same time, the anti-slip ridges on the outer wall of the filling block 12 can enhance the friction with the inner wall of the bearing, further improving the stability effect and effectively preventing the rotating shaft 3 from shaking due to the gap during rotation. During this process, the fixing post 15 fixed on one side of the inner wall of the rotating shaft 3 will always be inserted into the insertion hole 16 on one side of the extrusion block 18, providing additional support and limit for the movement of the extrusion block 18, ensuring that the entire stabilizing action is accurate and stable.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotating shaft stabilizing structure for a die set for sheet metal stamping, comprising a die holder (1) and a lower die (2) provided on one side of the die holder (1), characterized in that, The lower mold (2) is fixedly connected to two sides of a rotating shaft (3). Each rotating shaft (3) is rotatably connected to the mold base (1) through a bearing. The interior of each of the two rotating shafts (3) is provided with a stabilizing component. The mold base (1) is provided with a mold flipping component on one side. Each of the stabilizing components includes two filling blocks (12), and each of the rotating shafts (3) has a collar (8) on its outer wall. Each collar (8) is used to drive the corresponding two filling blocks (12) to extend, thereby stabilizing the rotating shaft (3) and preventing it from shaking.

2. The rotating shaft stabilizing structure for die flipping of a sheet metal stamping die according to claim 1, characterized in that: Each of the rotating shafts (3) has a cavity inside, and each of the rotating shafts (3) has an opening (7) on both sides.

3. The rotating shaft stabilizing structure for die flipping of a sheet metal stamping die according to claim 2, characterized in that: Each of the rotating shafts (3) has threads on one side of its outer wall and on the inner wall of its collar (8), and the inner wall of each collar (8) is threaded to the outer wall of the corresponding rotating shaft (3).

4. The rotating shaft stabilizing structure for die flipping of a sheet metal stamping die according to claim 3, characterized in that: Each of the rotating shafts (3) has through holes (10) on both sides, and each of the collars (8) has a connecting ring (11) fixedly connected to one side. Each of the rotating shafts (3) has a moving column (9) inside. Each of the connecting rings (11) has a corresponding through hole (10) on both sides and is fixedly connected to the corresponding moving column (9). Each of the moving columns (9) has a pressing block (18) fixedly connected to one side.

5. The rotating shaft stabilizing structure for die flipping of a sheet metal stamping die according to claim 4, characterized in that: Each filling block (12) is located inside the corresponding rotating shaft (3). A limiting groove (13) is provided on one side of each filling block (12). A limiting rod (14) is fixedly connected to both sides of the inner wall of each rotating shaft (3). Each limiting rod (14) is slidably connected to the corresponding limiting groove (13).

6. The rotating shaft stabilizing structure for die roll-over of a sheet metal stamping die according to claim 4, characterized in that: The outer wall of each extrusion block (18) is inclined, and each filling block (12) has a groove (17) on the side near the corresponding extrusion block (18). The structure of each groove (17) is adapted to the outer wall structure of the corresponding extrusion block (18), and each filling block (12) passes through the corresponding opening (7).

7. The rotating shaft stabilizing structure for die flipping of a sheet metal stamping die according to claim 6, characterized in that: Each of the collars (8) and filling blocks (12) has anti-slip ridges on its outer wall. Each of the rotating shafts (3) has a fixed post (15) fixedly connected to one side of its inner wall. Each of the extrusion blocks (18) has an insertion hole (16) on one side. The fixed post (15) is inserted into the insertion hole (16).

8. The rotating shaft stabilizing structure for die roll-over of sheet metal stamping die according to claim 1, characterized in that: The mold-flipping assembly includes a motor (5), one end of which of the rotating shafts (3) passes through one side of the mold base (1) and is fixedly connected to a first gear (4). The motor (5) is fixedly installed on one side of the mold base (1), and a second gear (6) is fixedly connected to the outer wall of the output end of the motor (5). The second gear (6) meshes with the first gear (4).

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