Product fixing assembly for punching die

Abstract

A product fixing assembly for a punching die relates to the technical field of punching dies and comprises a workbench, a die groove is formed in the middle of the workbench, guide grooves are formed in the front and the rear of the two sides of the upper end face of the workbench, a positioning frame is installed above the position between the front guide groove and the rear guide groove, and the positioning frame is in sliding fit with the guide grooves. A transmission mechanism is arranged on one side of the workbench, a second servo motor is installed at the rear end of the transmission mechanism, a clamping mechanism is installed in the middle of the inner side of the positioning frame, a movable rod is installed in the clamping mechanism and extends to the position below the clamping mechanism, and the movable rod and the clamping mechanism are limited in a sliding mode. According to the scheme, the problem that the punching effect is affected due to the fact that a punching die cannot be flexibly positioned and fixed according to the position of a plate is solved.

Description

Technical Field

[0001] This utility model relates to the field of punching die technology, specifically to a product fixing component for punching dies. Background Technology

[0002] The product fixing components of a punching die mainly include process components such as punches, dies, and punch-die combinations. These components directly form the internal and external shapes of the stamped parts. The punch forms the raised portions of the stamped parts, while the die forms the recessed portions. Punch-die combinations are special parts in compound stamping processes; their internal cutting edges act as punching dies, and their external cutting edges act as blanking punches. In addition, there are positioning parts such as guide plates and guide pins, as well as unloading and ejection devices such as stripper plates and ejectors, all working together to ensure that the punching die can accurately and stably fix and process the product during the stamping process.

[0003] For example, the Chinese authorized patent CN214644338U, "Diaphragm Side Punching Die", includes a fixed base, a punching lower die holder fixedly disposed at the center of the top of the fixed base, a punching forming groove opened at the center of the top of the punching lower die holder, a stamping forming protrusion fixedly disposed at the center of the top of the inner wall of the punching forming groove, a plurality of evenly distributed punching holes opened at the outer ring of the bottom of the inner wall of the punching forming groove, a waste collection box engaged with the bottom of one side of the punching lower die holder, and support sliding columns fixedly disposed at the four corners of the top of the fixed base.

[0004] While the existing technology can achieve the punching process of sheet metal, it has poor fixing effect on the sheet metal and cannot flexibly position and fix it according to the position of the sheet metal, thus affecting the punching effect. Therefore, it does not meet the current needs. In this regard, we propose a product fixing component for punching dies. Utility Model Content

[0005] The purpose of this utility model is to provide a product fixing component for punching dies, so as to solve the problem mentioned in the background art that punching dies cannot be flexibly positioned and fixed according to the position of the sheet metal, thereby affecting the punching effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a product fixing component for punching dies, including a worktable, a die groove provided at the middle position of the worktable, guide grooves provided at the front and rear of both sides of the upper surface of the worktable, a positioning frame installed above the guide grooves, and the positioning frame slidingly engaging with the guide grooves, a transmission mechanism provided on one side of the worktable, a second servo motor installed at the rear end of the transmission mechanism, a clamping mechanism installed at the middle position inside the positioning frame, a movable rod installed inside the clamping mechanism, the movable rod extending to the bottom of the clamping mechanism, and the movable rod slidingly limiting the clamping mechanism, and a pressure plate fixedly installed at the bottom of the movable rod.

[0007] Preferably, a first servo motor is fixedly installed at the upper end of the clamping mechanism, and a screw is installed on the output shaft of the first servo motor. The screw extends into the interior of the movable rod, and the external thread of the screw is adapted to the internal thread hole of the movable rod.

[0008] Preferably, a limiting groove is installed on the upper end face of the positioning frame, and a limiting slider is installed above the limiting groove. The limiting slider is slidably connected to the limiting groove, and one side of the limiting slider is fixed to the clamping mechanism.

[0009] Preferably, an electric push rod is installed on the rear side of the upper end face of the positioning frame. The fixed end of the electric push rod is fixed to the positioning frame by screws, and the movable end of the electric push rod is fixed to the limiting slider.

[0010] Preferably, a double-threaded transmission rod is installed inside the worktable for rotating back and forth. Sliding blocks are installed on both sides of the double-threaded transmission rod. The inner threaded hole of the sliding block is threadedly connected to the double-threaded transmission rod, and the upper end of the sliding block is fixed to the bottom of the positioning frame.

[0011] Preferably, a driven bevel gear is fixedly provided at one end of the double-threaded transmission rod, a transmission shaft is installed on the output shaft of the second servo motor, and a driving bevel gear is fixedly provided at both the front and rear of the transmission shaft, and the driving bevel gear is meshed with the driven bevel gear.

[0012] Preferably, a rubber pad is adhered and fixed to the bottom of the pressure plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by incorporating a central positioning component, allows the sheet material to be placed on the worktable. By activating the second servo motor, its output shaft drives the transmission shaft to rotate, thus rotating the active bevel gear. The meshing of the active and driven bevel gears drives the double-threaded transmission rod to rotate. The friction between the external thread and the internal thread of the sliding block converts the rotational motion into linear motion, causing the two sliding blocks to move towards each other. This adjusts the distance between the two positioning frames, enabling the sheet material to be positioned towards the center of the worktable. This method can adapt to the positioning needs of sheets of different sizes and shapes. This flexibility allows the equipment to handle a wider variety of processing tasks, enhancing its versatility and applicability. Driven by the servo motor, the distance between the positioning frames is quickly adjusted, pushing the sheet material to the center of the worktable. Compared to manual positioning, this method significantly shortens positioning time and improves production efficiency.

[0015] 2. This utility model features a clamping mechanism. Before punching the sheet metal, the second servo motor is activated, and its output shaft drives the screw to rotate. The friction between the external thread of the screw and the internal thread of the movable rod, combined with the guiding effect of the clamping mechanism's inner cavity on the movable rod, causes the pressure plate to move downwards until it is in close contact with the sheet metal. This ensures the sheet metal remains stable during punching, preventing processing errors caused by movement or shaking, and improving processing accuracy. It guarantees the sheet metal is firmly clamped while avoiding over-clamping that could cause deformation or damage. It can adapt to the clamping needs of sheets of different thicknesses and materials. This flexibility allows the equipment to handle a wider variety of processing tasks, enhancing its adaptability and versatility.

[0016] 3. This utility model uses an electric push rod fixedly installed on one side of the upper end of the positioning frame. After the sheet metal is punched, the first servo motor reverses to reduce the friction between the sheet metal and the worktable. Then the electric push rod opens, moving the punched sheet metal towards the discharge port. At the same time, the unpunched sheet metal moves to the mold slot position. The electric push rod can precisely control the moving distance and speed of the sheet metal, ensuring that the punched sheet metal can be accurately pushed to the discharge port, and the unpunched sheet metal can also be accurately moved to the mold slot position to prepare for the next punching, thus improving the accuracy and consistency of processing. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 This is a schematic diagram of the positioning frame transmission structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the transmission structure of the clamping mechanism of this utility model.

[0021] In the diagram: 1. Worktable; 2. Positioning frame; 3. Limiting slider; 4. Clamping mechanism; 5. First servo motor; 6. Pressure plate; 7. Electric push rod; 8. Mold groove; 9. Guide groove; 10. Limiting slide groove; 11. Transmission mechanism; 12. Second servo motor; 13. Double threaded transmission rod; 14. Sliding block; 15. Transmission shaft; 16. Driving bevel gear; 17. Driven bevel gear; 18. Movable rod; 19. Screw. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a product fixing component for punching dies, including a workbench 1, a die groove 8 at the middle position of the workbench 1, guide grooves 9 on both sides of the upper end face of the workbench 1, a positioning frame 2 installed above the guide grooves 9, and the positioning frame 2 slidingly engaging with the guide grooves 9, a transmission mechanism 11 on one side of the workbench 1, a second servo motor 12 installed at the rear end of the transmission mechanism 11, a double threaded transmission rod 13 rotatably mounted inside the workbench 1, sliding blocks 14 on both sides of the double threaded transmission rod 13, the inner threaded hole of the sliding block 14 threadedly connected to the double threaded transmission rod 13, and the upper end of the sliding block 14 fixed to the bottom of the positioning frame 2, a driven bevel gear 17 fixedly mounted at one end of the double threaded transmission rod 13, a transmission shaft 15 mounted on the output shaft of the second servo motor 12, and a driving bevel gear 16 fixedly mounted at both the front and rear of the transmission shaft 15, and the driving bevel gear 16 meshing with the driven bevel gear 17;

[0024] After the board is placed on the workbench 1, the second servo motor 12 is turned on, and its output shaft drives the transmission shaft 15 to rotate, thereby rotating the active bevel gear 16. Under the meshing of the active bevel gear 16 and the driven bevel gear 17, the double thread transmission rod 13 is driven to rotate. The friction between its external thread and the internal thread of the sliding block 14 converts the rotational motion into linear motion, thereby driving the two sliding blocks 14 to move towards each other, realizing the adjustment of the distance between the two positioning frames 2. This allows the board to be positioned towards the center of the workbench 1, which can adapt to the positioning needs of boards of different sizes and shapes.

[0025] Please see Figure 1 , Figure 2 and Figure 4 A clamping mechanism 4 is installed at the middle position inside the positioning frame 2. A movable rod 18 is installed inside the clamping mechanism 4. The movable rod 18 extends to the bottom of the clamping mechanism 4 and slides and limits with the clamping mechanism 4. A pressure plate 6 is fixedly installed at the bottom of the movable rod 18. A rubber pad is glued and fixed to the bottom of the pressure plate 6. A first servo motor 5 is fixedly installed at the upper end of the clamping mechanism 4. A screw 19 is installed on the output shaft of the first servo motor 5. The screw 19 extends into the interior of the movable rod 18, and the external thread of the screw 19 is adapted to the internal thread hole of the movable rod 18.

[0026] Before the sheet metal is punched, the first servo motor 5 is turned on, and its output shaft drives the screw 19 to rotate. Under the friction between its external thread and the internal thread of the movable rod 18, and with the guiding effect of the inner cavity of the clamping mechanism 4 on the movable rod 18, the movable rod 18 drives the pressure plate 6 to move down until it is in close contact with the sheet metal. This ensures that the sheet metal remains stable during the punching process, prevents processing errors caused by movement or shaking, and improves processing accuracy.

[0027] Please see Figure 1 , Figure 2 and Figure 4 The upper end face of the positioning frame 2 is equipped with a limiting groove 10, and a limiting slider 3 is installed above the limiting groove 10. The limiting slider 3 is slidably connected to the limiting groove 10, and one side of the limiting slider 3 is fixed to the clamping mechanism 4. An electric push rod 7 is installed on the rear side of the upper end face of the positioning frame 2. The fixed end of the electric push rod 7 is fixed to the positioning frame 2 by screws, and the movable end of the electric push rod 7 is fixed to the limiting slider 3. After the plate is punched, the first servo motor 5 reverses to reduce the friction between the plate and the worktable 1. Then the electric push rod 7 opens and moves the punched plate towards the discharge port. At the same time, the unpunched plate moves to the mold slot 8. The electric push rod 7 can accurately control the moving distance and speed of the plate to ensure that the punched plate can be accurately pushed to the discharge port.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A product fixing assembly for a punching die, comprising a worktable (1), wherein a die groove (8) is provided at the middle position of the worktable (1), characterized in that: The workbench (1) has guide grooves (9) on both sides of the upper end face. A positioning frame (2) is installed above the guide grooves (9) and the positioning frame (2) slides with the guide grooves (9). A transmission mechanism (11) is provided on one side of the workbench (1). A second servo motor (12) is installed at the rear end of the transmission mechanism (11). A clamping mechanism (4) is installed in the middle of the inner side of the positioning frame (2). A movable rod (18) is installed inside the clamping mechanism (4). The movable rod (18) extends to the bottom of the clamping mechanism (4) and slides with the clamping mechanism (4). A pressure plate (6) is fixedly installed at the bottom of the movable rod (18).

2. The product fixing assembly for a punching die according to claim 1, characterized in that: The clamping mechanism (4) is fixedly mounted with a first servo motor (5). The output shaft of the first servo motor (5) is equipped with a screw (19). The screw (19) extends into the interior of the movable rod (18), and the external thread of the screw (19) is adapted to the internal thread hole of the movable rod (18).

3. A product fixing assembly for a punching die according to claim 1, characterized in that: The upper end face of the positioning frame (2) is equipped with a limiting slide groove (10), and a limiting slider (3) is installed above the limiting slide groove (10). The limiting slider (3) is slidably connected to the limiting slide groove (10), and one side of the limiting slider (3) is fixed to the clamping mechanism (4).

4. A product fixing assembly for a punching die according to claim 1, characterized in that: An electric push rod (7) is installed on the rear side of the upper end face of the positioning frame (2). The fixed end of the electric push rod (7) is fixed to the positioning frame (2) by screws, and the movable end of the electric push rod (7) is fixed to the limiting slider (3).

5. A product fixing assembly for a punching die according to claim 1, characterized in that: The workbench (1) is equipped with a double threaded transmission rod (13) that rotates back and forth inside. Sliding blocks (14) are installed on both sides of the double threaded transmission rod (13). The inner threaded hole of the sliding block (14) is threadedly connected to the double threaded transmission rod (13), and the upper end of the sliding block (14) is fixed to the bottom of the positioning frame (2).

6. A product fixing assembly for a punching die according to claim 5, characterized in that: One end of the double threaded transmission rod (13) is fixedly provided with a driven bevel gear (17), and the output shaft of the second servo motor (12) is equipped with a transmission shaft (15). Both the front and rear ends of the transmission shaft (15) are fixedly provided with driving bevel gears (16), and the driving bevel gears (16) and the driven bevel gears (17) are meshed and connected.

7. A product fixing assembly for a punching die according to claim 1, characterized in that: A rubber pad is glued and fixed to the bottom of the pressure plate (6).

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