Stamping die with replaceable die head

Abstract

The utility model relates to the technical field of stamping dies, in particular to a stamping die with a replaceable die head, which comprises a mounting rack, an upper die main body movably mounted at the top end in the mounting rack, a die head main body movably mounted below the upper die main body, and an air cylinder mounted on the surface of the upper end of the mounting rack. The upper die body and the die head body are preliminarily fixed through the connecting blocks, the connecting plates, the second matching screws and the like, the upper die body and the die head body are fixed through the connecting plates, and the upper die body and the die head body are fixed through the second matching screws and the like. Then the positions between the upper die main body and the four outer walls of the die head main body are further connected and fixed through the connecting mechanisms, so that the connection is more stable, looseness and influence on normal use of a subsequent die are avoided, the positions between the upper die main body and the outer walls of the die head main body can be extruded and aligned, deviation is avoided, and the production efficiency is improved. And the forming precision of the mold is influenced.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a stamping die with a replaceable die head. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials into parts. Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or plastically deform, thereby obtaining the desired parts.

[0003] In the prior art, such as the tree straightening device for landscaping proposed in patent application number "CN202421116107.8", the stamping die with replaceable stamping die head uses the cooperation of the limiting ring block and the limiting block to facilitate the fixing of the stamping die head on the connecting seat by the limiting rod. When disassembly is required, it is only necessary to quickly release the limiting state of the limiting ring block and the limiting block, and then disassemble the limiting rod, which facilitates the quick replacement of the stamping die head. It is convenient and fast, and improves work efficiency.

[0004] However, in the aforementioned patent application, the connection point used to connect and fix the stamping die head is only located between the upper surface of the stamping die head and the bottom surface of the connecting seat. There is no limit to the connection between the four sides of the stamping die head and the connecting seat. Relying on a connection at only one position cannot guarantee the stability of the connection. During subsequent use, it is easy to loosen due to vibration, which can lead to detachment and displacement, thus affecting the normal use of the stamping die. Utility Model Content

[0005] The purpose of this invention is to provide a stamping die with a replaceable die head to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A stamping die with a replaceable die head includes a mounting frame. An upper die body is movably mounted at the top of the mounting frame, and a die head body is movably mounted below the upper die body. A cylinder is mounted on the upper surface of the mounting frame, and the bottom end of the cylinder is fixedly connected to the die head body. Two connecting blocks are inserted into the upper surface of the upper die body, and the bottom ends of both connecting blocks are fixedly connected to the die head body. Two connecting mechanisms are provided on each of the four outer side walls of the upper die body. A lower die is fixedly mounted at the bottom of the mounting frame. Two straightening shells are movably mounted between the two outer side walls of the upper die body and the lower die.

[0008] The connecting mechanism includes an L-shaped fixing block, a sliding rod, and two fixing plates. The L-shaped fixing block is fixedly installed on the inner side wall of the upper mold body. Several sliding grooves are opened on the upper surface of the upper mold body. The sliding rod is fixedly installed inside the sliding grooves. The two fixing plates are fixedly connected to the outer side wall of the mold head body. A rotating block is rotatably connected between the outer side walls of the two fixing plates through a shaft.

[0009] Preferably, two connecting rods are fixedly connected to the upper surface of the rotating block, and a movable rod is inserted inside each of the two connecting rods. A locking block is fixedly connected between the upper ends of the two movable rods, and the locking block fits into the L-shaped fixing block.

[0010] Preferably, a tension spring is installed between the bottom end of the connecting rod and the bottom end of the movable rod, a screw is inserted into the outer wall of the connecting rod near the upper end, and a screw groove is opened on the outer wall of the movable rod near the bottom end, and the screw groove fits with the screw.

[0011] Preferably, a slider is sleeved on the outside of the slide rod, a limiting plate is fixedly installed on the upper end of the slider, and a slot is opened through the outer wall of the L-shaped fixing block near the upper end, and the slot fits with one end of the limiting plate.

[0012] Preferably, a fixing nail is inserted into the upper surface of the limiting plate, and a fixing hole is opened on the outer wall of the slide rod, and the fixing hole fits with the fixing nail.

[0013] Preferably, the mounting bracket has four transverse slots through its upper and lower inner sidewalls, and a reciprocating screw is rotatably connected inside each of the four transverse slots. Each of the four reciprocating screws is fitted with a movable block, and the two ends of the straightening shell are respectively fixedly connected to two movable blocks.

[0014] Preferably, each of the four correction shells has several rollers rotatably connected inside by a shaft. Two motors are installed on the outer side wall of the mounting frame near the upper and lower end surfaces, and the output end of the motor is connected to one end of the reciprocating screw. The two reciprocating screws are fixedly connected to each other.

[0015] Preferably, the upper surfaces of the two connecting blocks are rotatably connected to connecting plates via shafts, and screws are inserted into the upper surfaces of the connecting plates. The upper surface of the upper mold body is provided with screw grooves, and the screw grooves fit into the screws.

[0016] The beneficial effects of this utility model are:

[0017] 1. In this utility model, the connecting plate is first fixed on the upper mold body by connecting block, connecting plate and matching screw two and screw groove two, thus initially fixing the upper mold body and mold head body. Then, the locking block and L-shaped fixing block are fixed by rotating block, limiting insert plate and fixing nail and slider, so that the position between the upper mold body and the four outer walls of the mold head body can be further connected and fixed, making the connection more stable, avoiding loosening, and affecting the normal use of the mold.

[0018] 2. This utility model uses a motor, a reciprocating screw, and a movable block to drive four straightening shells to move. Two of the straightening shells move closer to the outer wall of the upper mold body and the lower mold, while the other two straightening shells move closer to the other outer wall of the upper mold body and the lower mold. This continues until the rollers inside each straightening shell are tightly pressed against the outer wall of the upper mold body and the lower mold. This allows for the compression and alignment of the position between the upper mold body and the outer wall of the mold head body, preventing misalignment and ensuring the molding accuracy of the mold. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a partial structural schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the upper mold body and the mold head in this utility model;

[0023] Figure 4 This is a cross-sectional view of the upper mold body in this utility model;

[0024] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 This is a sectional view of the mounting bracket in this utility model;

[0026] Figure 7 This utility model Figure 6 Enlarged view of point B in the middle.

[0027] The attached figures are labeled as follows:

[0028] 1. Mounting frame; 2. Upper mold body; 3. Mold head body; 4. Lower mold; 5. Cylinder; 6. Connecting block; 7. Connecting plate; 8. Fixing plate; 9. Rotating block; 10. Connecting rod; 11. Movable rod; 12. L-shaped fixing block; 13. Limiting plate; 14. Slider; 15. Reciprocating screw; 16. Movable block; 17. Correcting shell; 18. Roller; 19. Slide rod; 20. Slot; 21. Locking block; 22. Fixing pin. Detailed Implementation

[0029] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] A stamping die with interchangeable die heads, such as Figures 1-7 As shown, the system includes a mounting frame 1. An upper mold body 2 is movably mounted at the top of the mounting frame 1. A mold head body 3 is movably mounted below the upper mold body 2. A cylinder 5 is mounted on the upper surface of the mounting frame 1, and the bottom of the cylinder 5 is fixedly connected to the mold head body 3. Two connecting blocks 6 are inserted into the upper surface of the upper mold body 2, and the bottom of both connecting blocks 6 is fixedly connected to the mold head body 3. Two connecting mechanisms are provided on each of the four outer walls of the upper mold body 2. A lower mold 4 is fixedly mounted at the bottom of the mounting frame 1. Two straightening shells 17 are movably mounted between the two outer walls of the upper mold body 2 and the lower mold 4. The connecting mechanism includes an L-shaped fixing block 12, a sliding rod 19, and two fixing plates 8. The L-shaped fixing block 12 is fixedly mounted on the inner wall of the upper mold body 2. Several sliding grooves are opened on the upper surface of the upper mold body 2. The sliding rod 19 is fixedly mounted inside the sliding grooves. The two fixing plates 8 are fixedly connected to the outer walls of the mold head body 3. A rotating block 9 is rotatably connected between the outer walls of the two fixing plates 8 through a shaft.

[0031] Among them, cylinder 5 is model FX1000-025.

[0032] Two connecting rods 10 are fixedly connected to the upper surface of the rotating block 9. A movable rod 11 is inserted inside each of the two connecting rods 10. A locking block 21 is fixedly connected between the upper ends of the two movable rods 11, and the locking block 21 fits into the L-shaped fixing block 12. A tension spring is installed between the bottom end of the connecting rod 10 and the bottom end of the movable rod 11. A screw is inserted into the outer wall of the connecting rod 10 near the upper end. A screw groove is opened on the outer wall of the movable rod 11 near the bottom end, and the screw groove fits into the screw. A slider 14 is sleeved on the outside of the sliding rod 19. A limiting plate 13 is fixedly installed on the upper end of the slider 14. A slot 20 is opened through the outer wall of the L-shaped fixing block 12 near the upper end, and the slot 20 fits into one end of the limiting plate 13. The position between the connecting rod 10 and the movable rod 11 is fixed by the screw and the screw groove.

[0033] A fixing nail 22 is inserted into the upper surface of the limiting plate 13, and a fixing hole is opened on the outer wall of the slide rod 19. The fixing hole fits with the fixing nail 22. By passing the fixing nail 22 through the limiting plate 13 and the slider 14 and inserting it into the fixing hole, the position of the limiting plate 13 and the slider 14 can be fixed.

[0034] In use, the cylinder 5 drives the upper mold body 2 and the mold head body 3 to move down, so that the mold head body 3 covers the lower mold 4, and the production work is carried out using the mold cover. When replacing the mold head body 3 and installing the mold head body 3, first insert the two connecting blocks 6 on the upper mold body 2 into the interior of the upper mold body 2, then rotate the connecting plate 7 to the horizontal position, and fix the position of the connecting plate 7 on the upper mold body 2 by using the screw two and the screw groove two. Similarly, the connecting plates 7 of other mechanisms can be fixed on the upper mold body 2 to complete the initial fixation of the upper mold body 2 and the mold head body 3.

[0035] Then, rotate the rotating block 9 to its initial position. While rotating the rotating block 9, simultaneously move the locking block 21 away from the rotating block 9, causing the movable rod 11 to move along the inside of the connecting rod 10, thus stretching the tension spring. After rotating the rotating block 9 to its initial position, release the locking block 21. Under the action of the tension spring's rebound force, the locking block 21 can be moved down and fitted onto the outside of the L-shaped fixing block 12. Then, fix the position between the connecting rod 10 and the movable rod 11 with a screw and a screw groove. At this time, similarly, the limiting plate 13 is fixed by the slider 14 and the slider 19. Move to the initial position so that one end of the limiting plate 13 is reinserted into the slot 20, and the position of the limiting plate 13 is fixed by the fixing pin 22 and the fixing hole. The position of the locking block 21 can be fixed on the L-shaped fixing block 12. Similarly, the other locking blocks 21 can be fixed to the L-shaped fixing block 12, so that the positions between the upper mold body 2 and the four outer walls of the mold head body 3 can be further connected and fixed, making the connection more stable and avoiding loosening, which would affect the normal use of the mold. Conversely, the mold head body 3 can be disassembled.

[0036] The mounting bracket 1 has four horizontal slots through its upper and lower inner side walls. Each of the four horizontal slots is rotatably connected to a reciprocating screw 15. Each of the four reciprocating screws 15 is fitted with a movable block 16. The two ends of the straightening shell 17 are respectively fixedly connected to two movable blocks 16.

[0037] Each of the four straightening shells 17 has several rollers 18 rotatably connected inside via shafts. Two motors are installed on the outer side wall of the mounting frame 1 near the upper and lower ends, and the output end of the motor is connected to one end of the reciprocating screw 15. The two reciprocating screws 15 are fixedly connected to each other. The inner wall of the movable block 16 where it engages with the reciprocating screw 15 is provided with a thread that matches the reciprocating screw 15. When the reciprocating screw 15 rotates, under the cooperation of the thread and the limitation of the transverse groove, the movable block 16 can be driven to move back and forth along the reciprocating screw 15.

[0038] The upper surfaces of the two connecting blocks 6 are rotatably connected to connecting plates 7 via shafts. Two screws are inserted into the upper surface of the connecting plates 7. Two screw grooves are opened on the upper surface of the upper mold body 2, and the screw grooves fit with the two screws. By passing the two screws through the connecting plates 7 and rotating them into the screw grooves, the connecting plates 7 can be fixed on the upper mold body 2.

[0039] Specifically, each motor drives each reciprocating screw 15 to rotate simultaneously, thereby causing each movable block 16 to move along each reciprocating screw 15. This can move four straightening shells 17. Two of the straightening shells 17 move closer to the outer wall of the upper mold body 2 and the lower mold 4, while the other two straightening shells 17 move closer to the other outer wall of the upper mold body 2 and the lower mold 4 until the rollers 18 inside each straightening shell 17 are in close contact with the outer wall of the upper mold body 2 and the lower mold 4. This can squeeze and align the position between the outer wall of the upper mold body 2 and the mold head body 3 to avoid misalignment and affect the forming accuracy of the mold. When the cylinder 5 drives the upper mold body 2 to move downward, the upper mold body 2 moves along each roller 18, which can reduce the friction between it and the straightening shells 17, making the downward movement smoother.

[0040] 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 illustrative of the principles of this 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.

Claims

1. A replaceable die head punch press die comprising a mounting frame (1) characterised in that, The upper mold body (2) is movably installed at the top of the mounting frame (1). The mold head body (3) is movably installed below the upper mold body (2). A cylinder (5) is installed on the upper surface of the mounting frame (1), and the bottom end of the cylinder (5) is fixedly connected to the mold head body (3). Two connecting blocks (6) are inserted on the upper surface of the upper mold body (2), and the bottom ends of the two connecting blocks (6) are fixedly connected to the mold head body (3). Two connecting mechanisms are provided on the four outer side walls of the upper mold body (2). A lower mold (4) is fixedly installed at the bottom of the mounting frame (1). Two straightening shells (17) are movably installed between the two outer side walls of the upper mold body (2) and the lower mold (4). The connecting mechanism includes an L-shaped fixing block (12), a sliding rod (19), and two fixing plates (8). The L-shaped fixing block (12) is fixedly installed on the inner side wall of the upper mold body (2). Several sliding grooves are opened on the upper surface of the upper mold body (2). The sliding rod (19) is fixedly installed inside the sliding groove. The two fixing plates (8) are fixedly connected to the outer side wall of the mold head body (3). A rotating block (9) is rotatably connected between the outer side walls of the two fixing plates (8) through a shaft.

2. The replaceable die head punch press die of claim 1 wherein, Two connecting rods (10) are fixedly connected to the upper surface of the rotating block (9). Movable rods (11) are inserted inside the two connecting rods (10). A locking block (21) is fixedly connected between the upper ends of the two movable rods (11), and the locking block (21) fits into the L-shaped fixing block (12).

3. The replaceable die head punch press die of claim 2 wherein, A tension spring is installed between the bottom end of the connecting rod (10) and the bottom end of the movable rod (11). A screw is inserted into the outer wall of the connecting rod (10) near the upper end. A screw groove is opened on the outer wall of the movable rod (11) near the bottom end, and the screw groove fits into the screw.

4. The replaceable die head punch press die of claim 2 wherein, The slide bar (19) is fitted with a slider (14), and a limiting plate (13) is fixedly installed on the upper end of the slider (14). A slot (20) is provided through the outer wall of the L-shaped fixing block (12) near the upper end, and the slot (20) is matched with one end of the limiting plate (13).

5. The replaceable die head punch press die of claim 4 wherein, The upper surface of the limiting plate (13) is provided with a fixing nail (22), and the outer wall of the slide rod (19) is provided with a fixing hole, which fits with the fixing nail (22).

6. The replaceable die head punch press die of claim 1 wherein, The mounting bracket (1) has four horizontal slots through its upper and lower inner walls. Each of the four horizontal slots is rotatably connected to a reciprocating screw (15). Each of the four reciprocating screws (15) is fitted with a movable block (16). The two ends of the straightening shell (17) are fixedly connected to two movable blocks (16) respectively.

7. The replaceable die head punch press die of claim 1 wherein, The four correction shells (17) are each connected to several rollers (18) by a shaft. Two motors are installed on the outer side wall of the mounting frame (1) near the upper and lower ends. The output end of the motor is connected to one end of the reciprocating screw (15). The two reciprocating screws (15) are fixedly connected to each other.

8. The replaceable die head punch press die of claim 1 wherein, The upper surfaces of the two connecting blocks (6) are rotatably connected to connecting plates (7) via shafts. The upper surfaces of the connecting plates (7) are fitted with screws. The upper surfaces of the upper mold body (2) are provided with screw grooves, which fit together with the screws.

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