Stamping die with blanking structure

Abstract

The utility model discloses a stamping die with a blanking structure, and particularly relates to the technical field of stamping dies, which comprises a working table, a support is arranged at the top of the working table, hydraulic cylinders are symmetrically arranged at the top of the support, the telescopic ends of the hydraulic cylinders are connected with stamping heads on the inner side of the support, a die holder is arranged at the top of the working table, and the stamping heads are connected with the die holder. According to the blanking mechanism, the pedal is treaded to move downwards by feet, so that the rack is driven to move downwards to drive the meshed gear II to rotate, the gear I is driven to drive the meshed ejector rod to push the ejector plate to move upwards, a stamped workpiece is ejected out of the die holder, blanking is facilitated, and the blanking efficiency is improved. When the pedal is released, the top plate can be reset under the action of the spring I, so that the use is convenient, and the practicability is higher; the connecting assembly is matched with the fixing sleeve and the fixing plate to be in threaded connection with the ejector plate and the ejector rod, so that the stamping head and the die holder are convenient to disassemble and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a stamping die with a blanking structure. Background Art

[0002] A stamping die is a special process equipment that processes materials (metal or non-metal) into parts or semi-finished products in cold stamping processing. By using two sets of stamping dies installed on a press to apply pressure to the material, separation or plastic deformation is caused to obtain the required parts. At present, the processing of sheet metal parts is one of the important parts of stamping processing.

[0003] Referring to the patent with the publication number CN220177980U, it discloses an automotive sheet metal stamping die, including a die base. A die groove is opened at the upper end of the die base. Fixed rods are fixedly connected to both sides of the upper end of the die base. A buffer assembly is arranged on one side of the fixed rod. The top end of the fixed rod is fixedly connected to a top plate. The output end of the top plate is fixedly connected to a cylinder. The output end of the cylinder is fixedly connected to a lifting plate. With the above structure, when it is necessary to disassemble and replace the stamping block, the staff rotates the torsion block. The torsion block makes the first screw rotate in the square groove, causing the moving plate in the square groove to move. The moving plate drives the positioning rod to move, so that the positioning rod leaves the insertion hole of the connecting block on the stamping block and the slot of the connecting groove, so that the stamping block can be disassembled, which is convenient to replace different types of stamping blocks, making the stamping die have a wide application range and improving the practicability of the stamping die.

[0004] During the use of the above stamping die for sheet metal part processing, after the stamping die finishes processing the sheet metal part, the sheet metal part is easily adhered to the inner side of the die under the strong pressure of the die, which is not convenient to take out. And the above device lacks a blanking structure for blanking, making its use inconvenient and the practicability relatively poor. Summary of the Invention

[0005] The purpose of the utility model is to provide a stamping die with a blanking structure to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: a stamping die with a blanking structure, including a workbench, a bracket is provided on the top of the workbench, hydraulic cylinders are symmetrically provided on the top of the bracket, the telescopic ends of the hydraulic cylinders are connected with a stamping head inside the bracket, a die base is provided on the top of the workbench, fixing plates are symmetrically provided on the outside of the die base on the top of the workbench, fixing sleeves are sleeved outside the telescopic ends of the hydraulic cylinders on the top of the stamping head, connecting components are provided on one side of the fixing sleeve and the fixing plate respectively, a blanking mechanism connected with the die base is provided at the bottom of the workbench, the blanking mechanism includes a push rod, and the push rod is movably installed at the bottom of the workbench, the upper end of the push rod is connected with a top plate inside the die base, a groove adapted to the top plate is opened on the inner bottom wall of the die base, and a first gear and a second gear are respectively rotatably installed on the left and right sides of one side at the bottom of the workbench.

[0007] Further, the blanking mechanism further includes synchronous pulleys, the synchronous pulleys are sleeved on the outer walls of the connecting shafts of the first gear and the second gear at corresponding positions respectively, the two synchronous pulleys are connected by a synchronous belt, a plurality of tooth grooves meshing with the first gear are opened on one side of the push rod, a rack is meshed and connected on one side of the second gear, a support rod is fixedly installed on one side at the bottom of the workbench, the lower end of the support rod is connected with a guide sleeve, and the guide sleeve is slidably sleeved outside the rack, the lower end of the rack is movably connected with a pedal through a connecting rod, a fixed seat is provided below the pedal, one end of the fixed seat is hinged to the lower end of the pedal, and the fixed seat and the pedal are connected by a first spring. The setting of the blanking mechanism can generate power by stepping on the pedal, drive the push rod to drive the top plate to eject the stamped workpiece, which is convenient for blanking. After blanking, release the force of stepping on the pedal, and it will reset under the elastic force of the first spring, making the top plate reset and move down, which is convenient to use and has strong practicability.

[0008] Further, the connecting component includes a plug rod, the plug rods are respectively arranged on one side of the fixing sleeve and the fixing plate, a pull handle is connected to one end of the plug rod, a second spring is sleeved on the outer wall of the plug rod near the fixing sleeve side, one end of the plug rod provided on one side of the fixing sleeve penetrates through the fixing sleeve, and one end of the plug rod provided on one side of the fixing plate penetrates through the fixing plate and is inserted into a jack opened on the side wall of the die base. The setting of the connecting component can facilitate the disassembly and replacement of the stamping head and the die base.

[0009] Further, the connecting shafts of the first gear and the second gear are both connected with the bottom of the workbench through support rods, and the connecting shafts of the first gear and the second gear are both rotatably connected with the support rods through bearings. The diameter of the first gear is larger than that of the second gear, so that when the rack moves down a short height distance, the first gear can drive the push rod to move up a large height distance.

[0010] Furthermore, gear 2 is located below gear 1, the two ends of the connecting rod are hinged to the rack and the pedal respectively, the inner wall combination of the guide sleeve is in a convex shape, and the outer wall of the guide sleeve is symmetrically provided with sliding grooves adapted to the guide sleeve to transmit power, and the structure of the guide sleeve can limit and guide the rack.

[0011] Furthermore, the two ends of the second spring are fixedly connected to the insert rod and the fixing sleeve respectively, and the top plate is threadedly connected to the top rod to facilitate the disassembly of the top plate, thereby facilitating the subsequent disassembly of the mold base.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0013] 1. The utility model uses a material unloading mechanism, and the pedal is moved downward by stepping on the foot, thereby driving the rack to move downward and drive the meshing gear to rotate twice, and then the transmission drive gear 1 drives the meshing push rod to push the top plate upward, so that the stamped workpiece is ejected from the die base, which is convenient for unloading. When the pedal is released, the top plate can be reset under the action of the spring 1, which is convenient to use and more practical.

[0014] 2. The utility model facilitates the disassembly and replacement of the punch head and the die base by connecting the assembly with the fixing sleeve and the fixing plate in conjunction with the threaded connection of the top plate and the top rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure between the push rod and the gear 1 and the gear 2 of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure between the insertion rod, the pull handle and the fixing sleeve of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure between the rack and the guide sleeve of the utility model;

[0020] In the figure: 1. workbench; 2. bracket; 3. hydraulic cylinder; 4. punch head; 5. die base; 6. fixed sleeve; 7. fixed plate; 8. ejector rod; 9. ejector plate; 10. gear 1; 11. gear 2; 12. synchronous wheel; 13. synchronous belt; 14. rack; 15. support rod; 16. guide sleeve; 17. connecting rod; 18. fixed seat; 19. pedal; 20. spring 1; 21. plug rod; 22. pull handle; 23. spring 2. Detailed implementation mode

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] As Figure 1 - Figure 4 The stamping die with a blanking structure shown in the figure includes a workbench 1. A bracket 2 is provided on the top of the workbench 1. Hydraulic cylinders 3 are symmetrically provided on the top of the bracket 2. A stamping head 4 is connected to the telescopic end of the hydraulic cylinder 3 inside the bracket 2. A die base 5 is provided on the top of the workbench 1. Fixed plates 7 are symmetrically provided on the outside of the die base 5 on the top of the workbench 1. Fixed sleeves 6 are sleeved on the outside of the telescopic ends of the hydraulic cylinders 3 on the top of the stamping head 4. Connecting components are provided on one side of the fixed sleeve 6 and the fixed plate 7. A blanking mechanism connected to the die base 5 is provided at the bottom of the workbench 1. The blanking mechanism includes a ejector rod 8, and the ejector rod 8 is movably installed at the bottom of the workbench 1. The upper end of the ejector rod 8 is connected to a top plate 9 inside the die base 5. A groove adapted to the top plate 9 is opened on the inner bottom wall of the die base 5. A first gear 10 and a second gear 11 are respectively rotatably installed on the left and right sides of one side of the bottom of the workbench 1. In this example, the blanking mechanism further includes synchronous pulleys 12. The synchronous pulleys 12 are sleeved on the outer walls of the connecting shafts of the first gear 10 and the second gear 11 at corresponding positions. The two synchronous pulleys 12 are connected by a synchronous belt 13. A plurality of tooth grooves meshing with the first gear 10 are opened on one side of the ejector rod 8. A rack 14 is meshed and connected to one side of the second gear 11. A support rod 15 is fixedly installed on one side of the bottom of the workbench 1. The lower end of the support rod 15 is connected to a guide sleeve 16, and the guide sleeve 16 is slidably sleeved on the outside of the rack 14. The lower end of the rack 14 is movably connected to a pedal 19 through a connecting rod 17. A fixed seat 18 is provided below the pedal 19. One end of the fixed seat 18 is hinged to the lower end of the pedal 19. A first spring 20 is connected between the fixed seat 18 and the pedal 19. The setting of the blanking mechanism can generate power by stepping on the pedal 19, driving the ejector rod 8 to drive the top plate 9 to eject the stamped workpiece, facilitating blanking. After blanking, the force of stepping on the pedal 19 is released, and it moves back under the elastic force of the first spring 20, causing the top plate 9 to move back downward, which is convenient to use and has strong practicability. In this example, the connecting component includes an insertion rod 21. The insertion rods 21 are respectively provided on one side of the fixed sleeve 6 and the fixed plate 7. A pull handle 22 is connected to one end of the insertion rod 21. A second spring 23 is sleeved on the outer wall of the insertion rod 21 near the fixed sleeve 6. One end of the insertion rod 21 provided on one side of the fixed sleeve 6 penetrates the fixed sleeve 6. One end of the insertion rod 21 provided on one side of the fixed plate 7 penetrates the fixed plate 7 and is inserted into the insertion hole opened on the side wall of the die base 5. The setting of the connecting component can facilitate the disassembly and replacement of the stamping head 4 and the die base 5.

[0023] In this example, the connecting shafts of the first gear 10 and the second gear 11 are both connected to the bottom of the workbench 1 through support rods, and the connecting shafts of the first gear 10 and the second gear 11 are rotatably connected to the support rods through bearings. The diameter of the first gear 10 is larger than that of the second gear 11, so that when the rack 14 moves down a relatively short height distance, the first gear 10 can drive the ejector rod 8 to move up a relatively large height distance. In this example, the second gear 11 is located below the first gear 10. Both ends of the connecting rod 17 are hinged to the rack 14 and the pedal 19 respectively. The inner wall of the guide sleeve 16 is combined into a convex shape, and symmetrically arranged chutes adapted to the guide sleeve 16 are provided on the outer wall of the guide sleeve 16 for power transmission. The structure of the guide sleeve 16 can limit and guide the rack 14. In this example, both ends of the second spring 23 are fixedly connected to the plug rod 21 and the fixed sleeve 6 respectively, and the top plate 9 is threadedly connected to the ejector rod 8 for easy disassembly of the top plate 9, so as to facilitate the subsequent disassembly of the die base 5.

[0024] Working principle of the present utility model: When in use, when it is necessary to unload the workpiece after stamping, the pedal 19 can be stepped on by foot, so that one end of the pedal 19 moves down to cooperate with the fixed seat 18 to squeeze the first spring 20. At the same time, one end of the pedal 19 will pull the connecting rod 17 to drive the rack 14, so that the rack 14 moves under the limit and guidance of the guide sleeve 16, thereby driving the second gear 11 meshed with it to rotate. The connecting shaft of the second gear 11 drives the connected synchronous pulley 12, and transmits power through the synchronous belt 13 to drive another synchronous pulley 12 to drive the first gear 10 to rotate, so that the first gear 10 drives the ejector rod 8 meshed with it to move upward, and the ejector rod 8 pushes the top plate 9 to move upward, so that the top plate 9 ejects the workpiece after stamping out of the die base 5, thus realizing unloading, which is convenient to use. After unloading, the force applied to the pedal 19 is released, so that it moves back under the action of the first spring 20, and then drives the ejector rod 8 to drive the top plate 9 to move down and reset; when it is necessary to disassemble the stamping head 4, by pulling the pull handle 22 to drive the plug rod 21 to move to one side of the fixed sleeve 6, the connection between the plug rod 21 and the hydraulic cylinder 3 can be released, and the stamping head 4 can be disassembled. When disassembling the die base 5, it is necessary to repeat the above-mentioned unloading steps first to make the top plate 9 move upward, then rotate the top plate 9 to disassemble it from the ejector rod 8, and then repeat the steps when disassembling the stamping head 4 to move one end of the plug rod 21 on one side of the fixed plate 7 out of the jack, and the die base 5 can be disassembled, which is convenient to use and has stronger practicability.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A stamping die with a blanking structure, comprising a workbench (1), characterized in that: The workbench (1) is provided with a bracket (2) at the top, a hydraulic cylinder (3) is symmetrically provided at the top of the bracket (2), a punch head (4) is connected to the inner side of the bracket (2) at the telescopic end of the hydraulic cylinder (3), a die base (5) is provided at the top of the workbench (1), a fixing plate (7) is symmetrically provided at the top of the workbench (1) and on the outer side of the die base (5), a fixing sleeve (6) is sleeved on the top of the punch head (4) and on the outer side of the telescopic end of the hydraulic cylinder (3), a connecting component is provided on one side of the fixing sleeve (6) and the fixing plate (7), a material discharge mechanism connected to the die base (5) is provided at the bottom of the workbench (1), the material discharge mechanism comprises a push rod (8), and the push rod (8) is movably mounted at the bottom of the workbench (1), the upper end of the push rod (8) is connected to a top plate (9) in the die base (5), the inner bottom wall of the die base (5) is provided with a groove adapted to the top plate (9), and a gear 1 (10) and a gear 2 (11) are rotatably mounted on one side of the bottom of the workbench (1) respectively.

2. The stamping die with a blanking structure according to claim 1, characterized in that: The unloading mechanism further comprises a synchronous wheel (12), the synchronous wheels (12) being sleeved at corresponding positions on the outer wall of the connecting shaft of the gear 1 (10) and the gear 2 (11), the two synchronous wheels (12) being connected via a synchronous belt (13), a plurality of tooth grooves meshing with the gear 1 (10) being provided on one side of the push rod (8), a rack (14) being meshingly connected on one side of the gear 2 (11), a support rod (15) being fixedly mounted on one side of the bottom of the workbench (1), the lower end of the support rod (15) being connected with a guide sleeve (16), and the guide sleeve (16) being slidably sleeved on the outer side of the rack (14), the lower end of the rack (14) being movably connected with a pedal (19) via a connecting rod (17), a fixed seat (18) being provided below the pedal (19), one end of the fixed seat (18) being hinged to the lower end of the pedal (19), and the fixed seat (18) and the pedal (19) being connected via a spring 1 (20).

3. The stamping die with a blanking structure according to claim 1, characterized in that: The connecting assembly comprises an insert rod (21), wherein the insert rod (21) is respectively arranged on one side of the fixing sleeve (6) and the fixing plate (7), one end of the insert rod (21) is connected to a pull handle (22), and a spring 2 (23) is sleeved on the outer wall of the insert rod (21) on the side of the insert rod (21) close to the fixing sleeve (6), one end of the insert rod (21) arranged on the side of the fixing sleeve (6) penetrates the fixing sleeve (6), and one end of the insert rod (21) arranged on the side of the fixing plate (7) penetrates the fixing plate (7) and is inserted into a socket opened in the side wall of the mold base (5).

4. The stamping die with a blanking structure according to claim 2, characterized in that: The connecting shafts of the gear 1 (10) and the gear 2 (11) are connected to the bottom of the workbench (1) via a support rod, and the connecting shafts of the gear 1 (10) and the gear 2 (11) are rotatably connected to the support rod via a bearing, and the diameter of the gear 1 (10) is greater than the diameter of the gear 2 (11).

5. The stamping die with a blanking structure according to claim 2, characterized in that: The second gear (11) is located below the first gear (10), the two ends of the connecting rod (17) are respectively hinged to the rack (14) and the pedal (19), the inner wall combination of the guide sleeve (16) is in a convex shape, and the outer wall of the guide sleeve (16) is symmetrically provided with sliding grooves adapted to the guide sleeve (16).

6. The stamping die with a blanking structure according to claim 3, characterized in that: The two ends of the second spring (23) are respectively fixedly connected to the insertion rod (21) and the fixing sleeve (6), and the top plate (9) and the top rod (8) are threadedly connected.

Images