A punch-die quick replacement device based on modular design

Abstract

The utility model belongs to punch die technical field especially relates to a convex and concave die quick replacement device based on modularization design, including lower die seat, the upper surface bolted connection of lower die seat has lower backing pad, the centre bolted connection of lower backing pad has lower mould, the first positioning gap has in the threaded end end of lower mould, the centre hole of lower backing pad is equipped with two first reciprocating springs, the end fixedly connected with first positioning pin of two first reciprocating springs, first positioning pin corresponds with first positioning gap, the upper surface fixedly connected with four unloading springs of lower backing pad, the end fixedly connected with unloading plate of four unloading springs, the centre of unloading plate has hole and hole. The utility model discloses through to the new quick replacement structure design of convex and concave die and to the cleaning structure of quick replacement design has improved the efficiency and durability of convex and concave die replacement, simple operation, time -saving and labor -saving.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a quick-change device for punch and die based on modular design. Background Technology

[0002] The modular die quick-change device is a highly efficient technology applied in manufacturing fields such as stamping and injection molding. Through standardized interfaces, quick-release structures, and intelligent positioning systems, it enables the rapid replacement of core mold components. Its core function is to reduce downtime, improve production line flexibility, and adapt to the needs of multi-variety, small-batch production. The die quick-change device is commonly used in the fields of stamping dies, injection molds, and automation integration scenarios.

[0003] When replacing existing punches and dies, the entire mold frame needs to be dismantled, which is troublesome, time-consuming, and labor-intensive, and the modules are easily affected by stamping debris.

[0004] To address the aforementioned issues, we propose a quick-change device for punches and dies based on a modular design. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the background art by proposing a quick-change device for punches and dies based on modular design.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a quick-change device for punches and dies based on modular design, including a lower die base, a lower pad plate bolted to the upper surface of the lower die base, a lower die bolted to the center of the lower pad plate, a first positioning notch at the threaded end of the lower die, two first reciprocating springs provided in the center opening of the lower pad plate, and first positioning pins fixedly connected to the ends of the two first reciprocating springs, the first positioning pins corresponding to the first positioning notch, and four unloading springs fixedly connected to the upper surface of the lower pad plate. The end of the unloading spring is fixedly connected to an unloading plate, the unloading plate has a hole in the center, the die head of the lower die passes through the unloading plate, two guide pillars are fixedly connected to the upper surface of the lower die base, an upper die base is sleeved on the end of the guide pillars, an upper pad is bolted to the lower surface of the upper die base, an upper die is bolted to the center of the upper pad, the threaded end of the upper die has a second positioning notch, two second reciprocating springs are provided in the center hole of the upper pad, the ends of the two second reciprocating springs are fixedly connected to second positioning pins, the second positioning pins and the second positioning notch correspond to each other.

[0007] In the aforementioned modular design-based quick-change die and punch device, a hole is provided in the upper pad near the second reciprocating spring. An air pump is fixedly connected in the hole of the upper pad. A piston rod is slidably connected to the lower surface of the air pump, penetrating the air pump cavity. A rubber cup is fixedly connected to the end of the piston rod. A fourth reciprocating spring is fixedly connected between the end of the piston rod and the inner wall of the air pump. An air outlet pipe is provided at the top of the air pump, and the two air outlets of the air outlet pipe are directly opposite the two second reciprocating springs.

[0008] In the above-mentioned quick-change device for punch and die based on modular design, the upper die is a die, and the die head center of the upper die is bolted to a feeding cylinder. The lower surface of the feeding cylinder is slidably connected to a feeding rod that penetrates the feeding cylinder cavity, and a third reciprocating spring is fixedly connected between the end of the feeding rod and the end of the feeding cylinder.

[0009] In the aforementioned modular design-based quick-change die and mold device, a die top is mounted on the upper surface of the upper die holder.

[0010] In the aforementioned modular design-based quick-change die and punch device, the threaded ends of the upper die, the lower die, and the ejector cylinder are all tapered threads.

[0011] In the above-mentioned quick-change device for punch and die based on modular design, the first positioning notch and the second positioning notch are both V-groove structures, and the ends of the first positioning pin and the second positioning pin are provided with tapered guide surfaces that match the V-groove.

[0012] Compared with existing technologies, the advantages of the modular design-based quick-change die and punch device provided by this utility model are as follows: 1. When replacing the lower mold, align the first positioning notch of the lower mold with the first positioning pin of the lower pad. During the tightening of the bolt, the tapered guide surface of the first positioning pin is squeezed by the V-groove, the first reciprocating spring contracts, forcing the first reciprocating spring to compress, the first positioning pin retracts, and when the bolt is fully tightened, the first positioning pin achieves radial locking, thus realizing the replacement of the lower mold. 2. During the stamping process, the debris generated can easily get stuck in the second reciprocating spring. When the mold closes, the lower end of the piston rod contacts the workpiece or scrap and is pushed upward. As the piston rod moves upward, the rubber cup expands, and the air pump cavity discharges air into the air outlet pipe. The airflow blows the debris stuck on the second reciprocating spring through the air outlet pipe. When the upper mold returns, the fourth reciprocating spring is released, pushing the piston rod to move downward in the air pump cavity. At this time, the rubber cup contracts, and air is drawn into the air pump cavity. In summary, this utility model improves the efficiency and durability of die replacement by designing a new quick-change structure for the die and a cleaning structure designed for quick replacement. It is simple to operate and saves time and effort. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the external structure of a quick-change device for punches and dies based on modular design proposed in this utility model; Figure 2 This is a schematic diagram of the upper die and the material feeding device in a quick-change device for punches and dies based on modular design proposed in this utility model. Figure 3 A schematic diagram of the air pump and second positioning pin structure in a quick-change device for punch and die based on modular design proposed in this utility model. Figure 4 This is a schematic diagram of the lower die in a quick-change device for punches and dies based on modular design proposed in this utility model. Figure 5 This is a schematic diagram of the lower template and the first positioning pin in a quick-change device for punches and dies based on modular design proposed in this utility model.

[0014] In the diagram: 1 Lower mold base, 2 Lower backing plate, 3 Lower mold, 4 First positioning notch, 5 First reciprocating spring, 6 First positioning pin, 7 Ejector spring, 8 Ejector plate, 9 Guide post, 10 Upper mold base, 11 Upper backing plate, 12 Upper mold, 13 Second positioning notch, 14 Second reciprocating spring, 15 Second positioning pin, 16 Air pump, 17 Piston rod, 18 Rubber cup, 19 Fourth reciprocating spring, 20 Air outlet pipe, 21 Ejector cylinder, 22 Ejector rod, 23 Third reciprocating spring, 24 Mold top. Detailed Implementation

[0015] 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.

[0016] Reference Figures 1-5A modular design-based quick-change die and punch device includes a lower die base 1. A lower pad 2 is bolted to the upper surface of the lower die base 1. A lower die 3 is bolted to the center of the lower pad 2. The threaded end of the lower die 3 has a first positioning notch 4. Two first reciprocating springs 5 ​​are provided in the central opening of the lower pad 2. First positioning pins 6 are fixedly connected to the ends of the two first reciprocating springs 5, corresponding to the first positioning notch 4. When replacing the lower die 3, the first positioning notch 4 of the lower die 3 is aligned with the first positioning pin 6 of the lower pad 2 to achieve correct orientation of the lower die 3 after tightening. During the tightening process, the tapered guide surface of the first positioning pin 6 is squeezed by the V-groove, causing the first reciprocating springs 5 ​​to contract, forcing the first reciprocating springs 5 ​​to compress, and the first positioning pin 6 to retract. When the bolt is fully tightened, the first positioning pin 6 achieves radial locking, realizing the replacement of the lower die 3. Four unloading springs 7 are fixedly connected to the upper surface of the lower pad 2. A stripper plate 8 is fixedly connected to the end of spring 7. The stripper plate 8 has a hole in the center. The die head of the lower die 3 passes through the stripper plate 8. Two guide pillars 9 are fixedly connected to the upper surface of the lower die base 1. An upper die base 10 is sleeved at the end of the guide pillars 9. An upper pad 11 is bolted to the lower surface of the upper die base 10. An upper die 12 is bolted to the center of the upper pad 11. The threaded end of the upper die 12 has a second positioning notch 13. Two second reciprocating springs 14 are provided in the center hole of the upper pad 11. The ends of the two second reciprocating springs 14 are fixedly connected to second positioning pins 15. The second positioning pins 15 and the second positioning notch 13 correspond to each other. The replacement logic of the upper die 12 is the same as that of the lower die 3. The first positioning notch 4 and the second positioning notch 13 are both V-groove structures. The ends of the first positioning pin 6 and the second positioning pin 15 are provided with conical guide surfaces that match the V-grooves. The V-grooves guide the conical surfaces of the first positioning pin 6 and the second positioning pin 15 to slide in, speeding up the replacement process.

[0017] An opening is made in the upper pad 11 near the second reciprocating spring 14. An air pump 16 is fixedly connected to the opening in the upper pad 11. A piston rod 17, penetrating the cavity of the air pump 16, is slidably connected to the lower surface of the air pump 16. A rubber cup 18 is fixedly connected to the end of the piston rod 17. A fourth reciprocating spring 19 is fixedly connected between the end of the piston rod 17 and the inner wall of the air pump 16. An air outlet pipe 20 is provided at the top of the air pump 16. The two air outlets of the air outlet pipe 20 are directly opposite the two second reciprocating springs 14. During the stamping process... During the process, debris generated can easily get stuck in the second reciprocating spring 14. When the mold closes, the lower end of the piston rod 17 contacts the workpiece or scrap and is pushed upward. As the piston rod 17 moves upward, the rubber cup 18 expands, and the air pump 16 cavity discharges air into the air outlet pipe 20. The airflow blows the debris stuck on the second reciprocating spring 14 through the air outlet pipe 20. When the upper mold 12 returns, the fourth reciprocating spring 19 is released, pushing the piston rod 17 to move downward in the air pump 16 cavity. At this time, the rubber cup 18 contracts, and air is drawn into the air pump 16 cavity.

[0018] The upper die 12 is a concave die. The die head center of the upper die 12 is bolted to an ejector cylinder 21. An ejector rod 22 that penetrates the cavity of the ejector cylinder 21 is slidably connected to the lower surface of the ejector cylinder 21. A third reciprocating spring 23 is fixedly connected between the end of the ejector rod 22 and the end of the ejector cylinder 21. During stamping, the scrap is stuck in the upper die 12, which pushes the ejector rod 22 up. The ejector rod 22 moves upward in the cavity of the ejector cylinder 21. At this time, the third reciprocating spring 23 is compressed. During the return stroke, the third reciprocating spring 23 pops out and returns to its original state, driving the ejector rod 22 to move downward, thereby realizing the removal of the scrap.

[0019] The upper surface of the upper die holder 10 is equipped with a die top 24, which is connected to a stamping machine to transmit the stamping force to the upper die holder 10, ensuring the execution of the stamping action.

[0020] The threaded ends of the upper die 12, the lower die 3, and the ejector cylinder 21 are all tapered threads. When the tapered threads are tightened, they generate radial stress, which counteracts the stamping lateral force, prevents the upper die 12 and the lower die 3 from loosening during operation, and improves the positioning accuracy.

[0021] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A punch-die quick change device based on modular design, comprising a lower die seat (1), characterized in that, The lower mold base (1) is bolted to the upper surface of a lower pad plate (2), and the lower mold (3) is bolted to the center of the lower pad plate (2). The lower mold (3) has a first positioning notch (4) at the threaded end. The lower pad plate (2) has two first reciprocating springs (5) at the center opening. The ends of the two first reciprocating springs (5) are fixedly connected to first positioning pins (6). The first positioning pins (6) correspond to the first positioning notch (4). The upper surface of the lower pad plate (2) is fixedly connected to four unloading springs (7). The ends of the four unloading springs (7) are fixedly connected to unloading plates (8). The unloading plates (8) have a hole in the center. The lower mold (1) 3) The die head passes through the unloading plate (8). Two guide pillars (9) are fixedly connected to the upper surface of the lower die base (1). The upper die base (10) is sleeved at the end of the guide pillars (9). The upper die base (11) is bolted to the lower surface of the upper die base (10). The upper die (12) is bolted to the center of the upper die base (11). The threaded end of the upper die (12) has a second positioning notch (13). The center hole of the upper die base (11) is provided with two second reciprocating springs (14). The ends of the two second reciprocating springs (14) are fixedly connected with second positioning pins (15). The second positioning pins (15) correspond to the second positioning notch (13).

2. The quick-change device for convex and concave dies based on modular design according to claim 1, characterized in that, The upper pad (11) has a hole near the second reciprocating spring (14). An air pump (16) is fixedly connected in the hole of the upper pad (11). A piston rod (17) that penetrates the cavity of the air pump (16) is slidably connected to the lower surface of the air pump (16). A rubber cup (18) is fixedly connected to the end of the piston rod (17). A fourth reciprocating spring (19) is fixedly connected between the end of the piston rod (17) and the inner wall of the air pump (16). An air outlet pipe (20) is provided at the top of the air pump (16). The two air outlets of the air outlet pipe (20) are directly opposite the two second reciprocating springs (14).

3. The punch-die quick-change device based on modular design according to claim 1, characterized in that, The upper mold (12) is a concave mold. The mold head center of the upper mold (12) is bolted to a feeding cylinder (21). The lower surface of the feeding cylinder (21) is slidably connected to a feeding rod (22) that penetrates the cavity of the feeding cylinder (21). A third reciprocating spring (23) is fixedly connected between the end of the feeding rod (22) and the end of the feeding cylinder (21).

4. The punch-die quick-change device based on modular design according to claim 1, characterized in that, The upper surface of the upper mold base (10) is fitted with a mold top (24).

5. The punch-die quick-change device based on modular design according to claim 1, characterized in that, The threaded ends of the upper die (12), the lower die (3), and the feed cylinder (21) are all tapered threads.

6. The quick-change device for convex and concave dies based on modular design according to claim 1, characterized in that, The first positioning notch (4) and the second positioning notch (13) are both V-groove structures, and the ends of the first positioning pin (6) and the second positioning pin (15) are provided with tapered guide surfaces that match the V-groove.

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