Rapid positioning and clamping tool for stamping die
By using a hydraulically driven slider and damper, the problem of excessive clamping force on round metal plates during stamping is solved, achieving precise positioning and stable clamping, thus improving stamping quality and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN SHIBAODE PRECISION MOULD CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-01
AI Technical Summary
During the stamping process of circular metal plates, the pressure applied by the stamping block causes the plate thickness to become thinner. The originally set large clamping force is excessive, resulting in excessive compressive stress, which leads to defects such as excessive flatness of the cover plate and edge wrinkles and wavy deformation.
The stamping die is driven by a hydraulic device, combined with a slider and a damper. The slider drives the anti-slip clamping plate to provide pre-tightening force, and the damper automatically adjusts the clamping force as the sheet metal becomes thinner, ensuring accurate positioning of the sheet metal and avoiding excessive concentration of clamping force.
It achieves precise positioning and stable clamping of circular metal sheets during the stamping process, avoiding defects such as surface depressions, protrusions, edge wrinkles, and wavy deformation, thus improving stamping quality and precision.
Smart Images
Figure CN224181910U_ABST
Abstract
Description
Quick positioning and clamping fixtures for stamping dies Technical Field
[0001] This utility model relates to the field of mechanical manufacturing technology, and more specifically, to a quick positioning and clamping fixture for stamping dies. Background Technology
[0002] With the continuous development of the manufacturing industry, stamping technology has been widely used in many fields such as automobiles, electronics, and aerospace. Modern manufacturing industry has put forward increasingly higher requirements for the quality, precision and production efficiency of stamped products. In order to meet these requirements, not only is advanced stamping die design and manufacturing technology required, but also efficient positioning and clamping tooling.
[0003] Considering that when a circular metal plate is stamped, the pressure applied by the stamping block causes the circular metal plate to deform and gradually become thinner, as the thickness decreases, the originally set large clamping force will become relatively excessive. Excessive clamping force will form excessive compressive stress on the surface of the cover plate, causing the cover plate to have excessive flatness, resulting in dents or bulges, and even causing defects such as wrinkles and wave deformation in the edge area. Summary of the Invention
[0004] The purpose of this utility model is to solve the problem that during the stamping process of circular metal plates, the pressure applied by the stamping block makes the thickness thinner, and the originally large clamping force becomes relatively too large due to the thinning of the plate, which forms excessive pressure stress on the surface of the cover plate, resulting in defects such as flatness deviation, depressions, protrusions, or wrinkles and wavy deformation at the edges. The utility model also provides a quick positioning and clamping fixture for stamping dies.
[0005] To achieve the above objectives, this utility model provides a quick positioning and clamping fixture for stamping dies, including a worktable body, a hydraulic device fixedly connected to the top of the worktable body, a stamping frame fixedly connected to the end of the hydraulic device away from the worktable body, a stamping block fixedly connected to the bottom of the stamping frame, a positioning component provided on the top of the worktable body, and a clamping component slidably connected to the inner cavity of the positioning component;
[0006] The clamping assembly includes a slider that slides on the surface of the positioning assembly. The slider has a groove on its surface. A damper is fixedly connected to the inner wall of the groove. An anti-slip clamping plate is slidably connected to the inner wall of the groove. The surface of the anti-slip clamping plate is fixedly connected to the damper. The surface of the anti-slip clamping plate is provided with an uneven anti-slip texture structure.
[0007] The slider moves along the positioning component, causing the anti-slip clamping plate to contact the edge of the metal sheet and apply pre-tightening force to complete the sheet positioning. The hydraulic device is activated, driving the stamping frame to move the stamping block downwards to perform plastic deformation processing on the metal sheet. As the sheet becomes thinner and extends, the damper automatically extends and retracts to compensate for the displacement, adjusting the pressure of the anti-slip clamping plate on the sheet in real time to prevent excessive clamping force from causing sheet defects.
[0008] As a further improvement to this technical solution, the positioning component includes a support frame fixedly connected to the top of the workbench body, a positioning plate fixedly connected to the top of the support frame, the surface of the positioning plate being used to place a metal plate, and the positioning plate being located directly below the stamping block.
[0009] As a further improvement to this technical solution, the top of the positioning plate is provided with three slots, and a sliding column is slidably connected to the inner wall of the slot. The top of the sliding column is fixedly connected to the bottom of the slider. A rotating plate is rotatably connected to the inner cavity of the support frame. The surface of the rotating plate is provided with three arc-shaped slots. A drive motor is fixedly connected to the bottom of the inner cavity of the worktable body. The output end of the drive motor is fixedly connected to the end of the rotating plate. The inner wall of the arc-shaped slot is slidably connected to the surface of the sliding column. The end of the rotating plate rotates on the inner wall of the worktable body.
[0010] The rotating plate has three evenly distributed arc-shaped grooves that cooperate with three sliding columns. When the rotating plate rotates, the arc-shaped grooves simultaneously push the sliding columns to slide radially along the empty grooves, causing three sets of anti-slip clamping plates to approach the edge of the metal plate from three directions at equal intervals, thereby clamping the metal plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] In this stamping die quick positioning and clamping fixture, the anti-slip clamping plate is driven by the slider to provide pre-tightening force, ensuring that the sheet is accurately positioned before stamping. During the stamping process, the damper can automatically extend and retract with the displacement caused by the thinning of the sheet, and adjust the pressure of the anti-slip clamping plate on the sheet in real time to avoid excessive concentration of clamping force. At the same time, it also avoids that excessive clamping force will force the edge of the sheet to wrinkle or wavy deformation due to extrusion. Attached Figure Description
[0013] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 is a schematic diagram of the clamping component structure of this utility model;
[0015] Figure 3 is a schematic diagram of the hollow groove structure of this utility model;
[0016] Figure 4 is a schematic diagram of the arc-shaped groove structure of this utility model.
[0017] The meanings of the labels in the diagram are as follows:
[0018] 1. Main body of the workbench; 10. Hydraulic device; 11. Stamping frame; 110. Stamping block;
[0019] 2. Positioning component; 21. Support frame; 210. Hollow slot; 22. Positioning plate;
[0020] 3. Clamping assembly; 31. Rotating plate; 310. Arc groove; 32. Drive motor; 33. Sliding column; 34. Sliding block; 340. Slide groove; 341. Damper; 35. Anti-slip clamping plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example
[0023] Please refer to Figures 1-4. This embodiment provides a quick positioning and clamping fixture for stamping dies, including a worktable body 1. A hydraulic device 10 is fixedly connected to the top of the worktable body 1. A stamping frame 11 is fixedly connected to the end of the hydraulic device 10 away from the worktable body 1. A stamping block 110 is fixedly connected to the bottom of the stamping frame 11. A positioning component 2 is provided on the top of the worktable body 1. A clamping component 3 is slidably connected to the inner cavity of the positioning component 2.
[0024] The clamping assembly 3 includes a slider 34 that slides on the surface of the positioning assembly 2. The surface of the slider 34 is provided with a groove 340. A damper 341 is fixedly connected to the inner wall of the groove 340. An anti-slip clamping plate 35 is slidably connected to the inner wall of the groove 340. The surface of the anti-slip clamping plate 35 is fixedly connected to the damper 341.
[0025] In the initial state, the slider 34 moves along the positioning component 2, causing the anti-slip clamping plate 35 to contact the edge of the metal sheet and apply a pre-tightening force. The hydraulic device 10 drives the stamping frame 11 to press down, and the stamping block 110 performs plastic deformation processing on the metal sheet. During the process of the sheet thinning and extending, the damper 341 automatically compensates for the displacement caused by the thinning of the metal sheet. During this process, the anti-slip clamping plate 35 slides in cooperation.
[0026] The improvement in this embodiment is as follows:
[0027] Considering that during the stamping of a circular metal plate, the pressure applied by the stamping block 110 causes the circular metal plate to deform and gradually become thinner, as the thickness decreases, the originally set large clamping force will become relatively excessive. Excessive clamping force will create excessive compressive stress on the cover plate surface, causing the cover plate to have excessive flatness, resulting in dents or bulges, and even causing defects such as wrinkles and wavy deformation in the edge area. Therefore, the anti-slip clamping plate 35 is driven by the slider 34 to provide pre-tightening force to ensure that the plate is accurately positioned before stamping. During the stamping process, the damper 341 can automatically extend and retract with the displacement caused by the thinning of the plate, and adjust the pressure of the anti-slip clamping plate 35 on the plate in real time to avoid excessive concentration of clamping force. At the same time, it also avoids that excessive clamping force will force the edge of the plate to wrinkle or wavy deformation due to extrusion.
[0028] In order to enable the positioning component 2 to place the metal plate, the parts of the positioning component 2 need to be further disclosed. Therefore, the positioning component 2 includes a support frame 21 fixedly connected to the top of the workbench body 1. A positioning plate 22 is fixedly connected to the top of the support frame 21. The surface of the positioning plate 22 is used to place the metal plate, and the positioning plate 22 is located directly below the stamping block 110. By placing the metal plate to be stamped on the top of the positioning plate 22, the stamping frame 11 is driven down by the hydraulic device 10, so that the stamping block 110 approaches the positioning plate 22 to stamp the metal plate on its surface.
[0029] In order to allow the clamping assembly 3 to slide on the surface of the positioning assembly 2, the top of the positioning plate 22 is provided with three slots 210. The inner wall of the slots 210 is slidably connected with a sliding post 33, and the top of the sliding post 33 is fixedly connected to the bottom of the slider 34. By sliding the sliding post 33 on the inner wall of the slots 210, the slider 34 can be driven to bring the anti-slip clamping plate 35 closer to the edge of the metal plate.
[0030] In order for the sliding column 33 to slide on the inner wall of the empty groove 210, a rotating plate 31 is rotatably connected to the inner cavity of the support frame 21. The rotating plate 31 has three arc-shaped grooves 310 on its surface, and the inner wall of the arc-shaped grooves 310 is slidably connected to the surface of the sliding column 33.
[0031] By rotating the rotating plate 31, the arc groove 310 pushes the sliding column 33 to slide linearly along the empty groove 210, thereby driving the anti-slip clamping plate 35 to approach the metal plate.
[0032] The end of the rotating plate 31 rotates on the inner wall of the workbench body 1. A drive motor 32 is fixedly connected to the bottom of the inner cavity of the workbench body 1. The output end of the drive motor 32 is fixedly connected to the end of the rotating plate 31. The rotating plate 31 can be driven to rotate in the inner cavity of the support frame 21 by the operation of the drive motor 32.
[0033] In order to prevent the anti-slip clamping plate 35 from slipping when fixing the metal plate due to the metal plate surface being too smooth, the surface of the anti-slip clamping plate 35 is provided with an uneven anti-slip texture structure.
[0034] In practical use, the circular metal plate of this utility model for quick positioning and clamping of stamping dies is placed at the top center of the positioning plate 22, ensuring that it is directly below the stamping block 110. The drive motor 32 is started, and the output end of the drive motor 32 drives the rotating plate 31 to rotate in the inner cavity of the support frame 21. When the rotating plate 31 rotates, the inner wall of the arc groove 310 on its surface pushes the sliding column 33 to slide linearly along the empty groove 210 at the top of the positioning plate 22. The sliding column 33 drives the slider 34 to move, thereby making the anti-slip clamping plate 35 contact the edge of the metal plate and apply a pre-tightening force to complete the plate positioning. The hydraulic device 10 is started, driving the stamping frame 11 to move the stamping block 110 downward to perform plastic deformation processing on the metal plate. As the plate becomes thinner and longer, the damper 341 automatically extends and retracts to compensate for the displacement, and adjusts the pressure of the anti-slip clamping plate 35 on the plate in real time to prevent excessive clamping force from causing defects in the plate.
[0035] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A quick positioning and clamping fixture for stamping dies, comprising a worktable body (1), characterized in that: A hydraulic device (10) is fixedly connected to the top of the workbench body (1). A stamping frame (11) is fixedly connected to the end of the hydraulic device (10) away from the workbench body (1). A stamping block (110) is fixedly connected to the bottom of the stamping frame (11). A positioning component (2) is provided on the top of the workbench body (1). A clamping component (3) is slidably connected to the inner cavity of the positioning component (2). The clamping component (3) includes a slider (34) that slides on the surface of the positioning component (2). A groove (340) is provided on the surface of the slider (34). A damper (341) is fixedly connected to the inner wall of the groove (340). An anti-slip clamping plate (35) is slidably connected to the inner wall of the groove (340). The surface of the anti-slip clamping plate (35) is fixedly connected to the damper (341).
2. The quick positioning and clamping fixture for stamping dies according to claim 1, characterized in that: The positioning component (2) includes a support frame (21) fixedly connected to the top of the workbench body (1). A positioning plate (22) is fixedly connected to the top of the support frame (21). The surface of the positioning plate (22) is used to place a metal plate, and the positioning plate (22) is located directly below the stamping block (110).
3. The quick positioning and clamping fixture for stamping dies according to claim 2, characterized in that: The positioning plate (22) has three slots (210) on its top. A sliding column (33) is slidably connected to the inner wall of the slot (210). The top of the sliding column (33) is fixedly connected to the bottom of the slider (34).
4. The quick positioning and clamping fixture for stamping dies according to claim 3, characterized in that: The inner cavity of the support frame (21) is rotatably connected to a rotating plate (31), and the surface of the rotating plate (31) is provided with three arc-shaped grooves (310), and the inner wall of the arc-shaped grooves (310) is slidably connected to the surface of the sliding column (33).
5. The quick positioning and clamping fixture for stamping dies according to claim 4, characterized in that: The end of the rotating plate (31) rotates on the inner wall of the workbench body (1).
6. The quick positioning and clamping fixture for stamping dies according to claim 4, characterized in that: A drive motor (32) is fixedly connected to the bottom of the inner cavity of the workbench body (1), and the output end of the drive motor (32) is fixedly connected to the end of the rotating plate (31).
7. The quick positioning and clamping fixture for stamping dies according to claim 1, characterized in that: The surface of the anti-slip clamping plate (35) is provided with an uneven anti-slip texture structure.