Stamping die with replaceable die head

Abstract

The utility model relates to a stamping die, in particular to a stamping die with a replaceable die head. According to the stamping die with the replaceable die head, threaded fit connection is not needed, and rusty spots at the connecting position of the die head can be prevented from affecting replacement of the die head. The stamping die with the replaceable die head comprises a base, a lower die base, lifting columns, a top plate, a stamping device, an upper die head and a pulling plate, the lower die base is installed on the base, the lifting columns are connected to the base in the circumferential direction, the tops of the lifting columns are jointly connected with the top plate, the stamping device is installed on the top plate, and the upper die head is connected with the upper die head. The stamping device is slidably connected with a pulling plate, and the stamping device is clamped with an upper die head through the pulling plate. The upper die head is not clamped by the pulling plate when the pulling plate is pulled out and separated, and the upper die head can be taken out from the stamping device by moving the upper die head downwards, so that the replacement of the upper die head is realized.

Description

Technical Field

[0001] This utility model relates to a stamping die, and more particularly to a stamping die with a replaceable die head. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process metal or non-metal materials into parts or semi-finished products. They are called cold stamping dies, or simply cold stamping dies. 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 undergo plastic deformation, thereby obtaining the desired parts.

[0003] Patent CN208643856U discloses a stamping die with a replaceable die head, including an upper die assembly and a lower die assembly. The upper die assembly includes an upper die fixing plate, an upper die fixing post, a guide sleeve, a fixing cylinder, and an upper die head. The upper die fixing post is disposed on the lower surface of the upper die fixing plate and is fixedly connected to the upper die fixing plate. The guide sleeve is disposed on the lower surface of the upper die base and is fixedly connected to the upper die base. The fixing cylinder is sleeved on the outer wall of the upper die fixing post and is detachably connected to the upper die fixing post. The upper die head is disposed at the lower end of the upper die fixing post and is engaged with the upper die fixing post. This device connects the upper die fixing post, upper die head, and fixing cylinder via threads. Over time, rust inevitably forms at the threaded connections, causing the old upper die head to become stuck and difficult to remove, affecting work efficiency.

[0004] Based on the above problems, we need to design a stamping die with a replaceable die head that does not require threaded connection and can avoid rust spots at the die head connection affecting die head replacement. Utility Model Content

[0005] To overcome the shortcomings of existing devices that connect the upper die fixing column, upper die head, and fixing cylinder via threads, which inevitably lead to rust spots at the threaded connection after prolonged use, causing the old upper die head to become stuck and difficult to remove, thus affecting work efficiency, the purpose of this utility model is to provide a stamping die with a replaceable die head that does not require threaded connection and can avoid rust spots at the die head connection affecting die head replacement.

[0006] The technical solution is as follows: A stamping die with a replaceable die head includes a base, a lower die holder, lifting columns, a top plate, a stamper, an upper die head, and a pull plate. The lower die holder is installed on the base, and multiple lifting columns are connected to the base circumferentially. The top of the multiple lifting columns is connected to the top plate. The stamper is installed on the top plate, and the pull plate is slidably connected to the stamper. The upper die head is clamped to the stamper through the pull plate.

[0007] As an improvement to the above solution, it also includes a rodless cylinder, a sliding sleeve, and a fixing block. Multiple fixing blocks are connected to one side of the base, and the rodless cylinder is connected to the multiple fixing blocks together. The sliding sleeve is slidably connected to the rodless cylinder.

[0008] As an improvement to the above solution, it also includes a second limiting plate, a second elastic element and a fixing rod. The side of the sliding sleeve near the top plate is connected to the fixing rod, the second limiting plate is connected to the fixing rod, and the second elastic element is sleeved on the fixing rod. One end of the second elastic element is connected to the end of the fixing rod away from the sliding sleeve, and the other end of the second elastic element is connected to the second limiting plate.

[0009] As an improvement to the above solution, it also includes a first elastic element and a first limiting plate, with the first elastic element connected to the side of the pull plate away from the upper mold head, and the first limiting plate connected to the side of the first elastic element away from the pull plate.

[0010] As an improvement to the above solution, it also includes rollers and wheels, with rollers connected to both sides of the base and wheels connected to the rollers.

[0011] This invention utilizes the combined operation of a stamping press, an upper die head, and a pull plate to pull the pull plate out, thus freeing it from jamming the upper die head and allowing it to be removed for replacement. The upper die head and the stamping press are not threaded, and the contact area between them is smooth, achieving a connection without threaded engagement and preventing rust spots at the connection from affecting die head replacement. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the top plate, lifting column, and sliding sleeve.

[0014] Figure 3 This is a cross-sectional view of the components of this utility model, including the stamping device, upper die head, and pull plate.

[0015] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the sliding sleeve, rodless cylinder, and fixing rod.

[0016] The following are the labels in the diagram: 1. Base, 2. Roller, 3. Lower mold base, 4. Lifting column, 5. Top plate, 6. Stamper, 7. Upper mold head, 8. Pull plate, 9. First elastic element, 10. First limiting plate, 11. Roller, 12. Second limiting plate, 13. Second elastic element, 14. Fixed rod, 15. Rodless cylinder, 16. Sliding sleeve, 17. Fixed block. Detailed Implementation

[0017] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0018] Example 1

[0019] A stamping die with interchangeable die heads, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the assembly includes a base 1, a lower mold base 3, lifting columns 4, a top plate 5, a stamper 6, an upper mold head 7, a pull plate 8, a rodless cylinder 15, a sliding sleeve 16, a fixing block 17, a first elastic element 9, a first limiting plate 10, a second limiting plate 12, a second elastic element 13, and a fixing rod 14. The lower mold base 3 is bolted to the base 1. Four lifting columns 4 are circumferentially connected to the base 1. The top of the four lifting columns 4 is connected to the top plate 5. The stamper 6 is bolted to the top plate 5. The pull plate 8 is slidably connected to the stamper 6. The upper mold head 7 is clamped to the stamper 6 through the pull plate 8. Two fixing blocks 17 are connected to one side of the base 1. A rodless cylinder 15 is connected to both fixed blocks 17. A sliding sleeve 16 is slidably connected to the rodless cylinder 15, and the sliding sleeve 16 is fixedly connected to the top plate 5 by bolts. A first elastic element 9 is connected to the side of the pull plate 8 away from the upper mold head 7. A first limiting plate 10 is connected to the side of the first elastic element 9 away from the pull plate 8. A fixed rod 14 is fixedly connected to the side of the sliding sleeve 16 near the top plate 5. A second limiting plate 12 is connected to the fixed rod 14. A second elastic element 13 is sleeved on the fixed rod 14. One end of the second elastic element 13 is connected to the end of the fixed rod 14 away from the sliding sleeve 16, and the other end of the second elastic element 13 is connected to the second limiting plate 12.

[0020] When this device is needed, the metal material is placed on the lower mold base 3, and then the rodless cylinder 15 is activated. The sliding sleeve 16 descends along the rodless cylinder 15. Since the sliding sleeve 16 is fixedly connected to the top plate 5 by bolts, the sliding sleeve 16 drives the top plate 5 to move downward. At the same time, the second elastic element 13 deforms, causing the second limiting plate 12 to press against the top plate 5. The second limiting plate 12 and the second elastic element 13 disperse part of the force of the bolts at the connection between the sliding sleeve 16 and the top plate 5. The sliding sleeve 16, the second limiting plate 12, and the second elastic element 13 work together to drive the top plate 5 downward. The top plate 5 moves downward, causing the lifting column 4 to descend. The downward movement of the top plate 5 drives the stamper 6 and the upper die head 7 to move downward. Then, the stamper 6 is started again, and the upper die head 7 gradually comes into contact with the metal material. Then, the upper die head 7 on the stamper 6 and the lower die base 3 work together to stamp the metal material. After the stamping is completed, the rodless cylinder 15 is started again. The sliding sleeve 16 of the rodless cylinder 15 drives the top plate 5 to move upward. The upward movement of the top plate 5 drives the stamper 6 and the upper die head 7 to move upward. The upper die head 7 gradually disengages from the metal material.

[0021] When the upper mold head 7 needs to be replaced, first hold the upper mold head 7 at the bottom with your hand, and then pull the pull plate 8 outward. The first elastic element 9 is compressed and deformed. The first elastic element 9 and the first limiting plate 10 are designed to prevent the pull plate 8 from being lost after being pulled out. When the pull plate 8 is completely separated from the upper mold head 7, the pull plate 8 no longer holds the upper mold head 7, so the upper mold head 7 can be taken out for replacement. In this way, there is no need for threaded connection. The connection between the upper mold head 7 and the stamper 6 is set to a smooth surface, which can prevent rust spots at the connection between the two from affecting the replacement of the mold head. Install the upper mold head 7 to be used into the stamper 6, insert the pull plate 8 into its original position, so that the pull plate 8 passes through the stamper 6 and is locked into the upper mold head 7 to fix the position of the upper mold head 7.

[0022] Example 2

[0023] Based on Example 1, such as Figure 1 and Figure 2 As shown, it also includes rollers 2 and wheels 11. Rollers 2 are connected to both sides of the base 1, and wheels 11 are connected to the rollers 2.

[0024] When the material to be stamped is heavy and difficult to push to the stamping position, rollers 2 are installed on both sides of the base 1. Rollers 11 are connected to the rollers 2. When the material to be stamped is placed on the rollers 11 and pushed, the rollers 11 roll and drive the material to move downward to the die base 3, and the material can be easily pushed to the stamping position. Repeat the above stamping operation to complete the stamping work.

[0025] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A stamping die with a replaceable die head, comprising a base (1) and a lower die holder (3), wherein the lower die holder (3) is mounted on the base (1), characterized in that, It also includes lifting columns (4), top plate (5), stamper (6), upper mold head (7) and pull plate (8). The base (1) is circumferentially connected with multiple lifting columns (4). The top of the multiple lifting columns (4) is connected to the top plate (5). The stamper (6) is installed on the top plate (5). The pull plate (8) is slidably connected to the stamper (6). The upper mold head (7) is clamped to the stamper (6) through the pull plate (8).

2. A stamping die with a replaceable die head as described in claim 1, characterized in that, It also includes a rodless cylinder (15), a sliding sleeve (16) and a fixing block (17). Multiple fixing blocks (17) are connected to one side of the base (1). Multiple fixing blocks (17) are connected to the rodless cylinder (15). The sliding sleeve (16) is slidably connected to the rodless cylinder (15).

3. A stamping die with a replaceable die head as described in claim 2, characterized in that, It also includes a second limiting plate (12), a second elastic element (13) and a fixing rod (14). The side of the sliding sleeve (16) near the top plate (5) is connected to the fixing rod (14). The second limiting plate (12) is connected to the fixing rod (14). The second elastic element (13) is sleeved on the fixing rod (14). One end of the second elastic element (13) is connected to the end of the fixing rod (14) away from the sliding sleeve (16), and the other end of the second elastic element (13) is connected to the second limiting plate (12).

4. A stamping die with a replaceable die head as described in claim 3, characterized in that, It also includes a first elastic element (9) and a first limiting plate (10). The first elastic element (9) is connected to the side of the pull plate (8) away from the upper mold head (7), and the first limiting plate (10) is connected to the side of the first elastic element (9) away from the pull plate (8).

5. A stamping die with a replaceable die head as described in claim 4, characterized in that, It also includes rollers (2) and wheels (11). Rollers (2) are connected to both sides of the base (1), and wheels (11) are connected to the rollers (2).

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