Die punch replacement structure

Abstract

This utility model discloses a die punch replacement structure, relating to the field of die technology. It includes a mounting plate and a fixing component fixedly mounted at the bottom of the mounting plate. A base plate is provided at the bottom of the fixing component, and an adjustment component for punch replacement is mounted on the base plate. The adjustment component includes a limiting ring fixedly mounted on the top of the base plate. A rotating rod is rotatably mounted on the inner wall of the limiting ring. One end of the rotating rod has a rotating handle, and a worm gear is fixedly mounted on the end of the rotating rod away from the rotating handle. This utility model, by setting up the adjustment component, allows the semi-circular slider at the bottom of the stamping plate to slide along a semi-circular groove on the base plate, restricting the stamping plate to only perform circular motion and preventing wobbling. When the stamping head rotates to the target position, the mating surface between the slider and the groove provides mechanical limitation. The rotating worm gear drives the worm wheel to rotate, adjusting the position of the stamping head within the stamping plate, facilitating the switching of different stamping heads for stamping.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a mold punch replacement structure. Background Technology

[0002] In the stamping die manufacturing process, the punch (pressing head) is a key component that directly contacts the workpiece and completes processes such as punching and forming. Due to different processing requirements (such as different hole diameters, shapes, or materials), it is often necessary to change punches frequently.

[0003] The existing patent (authorization announcement number: CN222326438U) discloses a quick-change structure for stamping die punches. The key technical points of the solution are that, during operation, two sets of first U-shaped plates are clamped and connected to the punch. Because the two sets of first U-shaped plates are relatively rough, they increase friction on the punch, preventing it from easily falling off. Two sets of elastic rods fixed on them provide elastic force, pushing the two sets of first U-shaped plates to compress. The parts on these plates are connected within a fixed shaft, serving as a connection and placement mechanism, facilitating installation and disassembly, and improving work efficiency. Four sets of first springs are fixed to each of the two sets of first U-shaped plates. During operation, these four springs compress the first U-shaped plates, pressing the front ends for better compression. Four sliding plates allow the parts on them to slide within the fixed shaft.

[0004] However, the above technical solutions still have certain defects. The punch in the above patent is directly fixed to the mold base by bolts. Each replacement requires disassembling multiple bolts, which is cumbersome and time-consuming. However, the existing quick-change structure usually only supports the replacement of a single punch. If it is necessary to switch to different specifications of punches, multiple disassembly and assembly are still required, which cannot achieve rapid switching between multiple stations. Therefore, a mold punch replacement structure is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a die punch replacement structure to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: The die punch replacement structure includes a mounting plate, a fixing component fixedly installed at the bottom of the mounting plate, a base plate at the bottom of the fixing component, and an adjustment component for replacing the punch installed on the base plate; The adjustment assembly includes a limiting ring fixedly installed on the top of the base plate. A rotating rod is rotatably installed on the inner wall of the limiting ring. A rotating handle is provided at one end of the rotating rod. A worm gear is fixedly provided at the end of the rotating rod away from the rotating handle. The worm gear meshes with a worm wheel, and a rotating shaft is fixedly provided at the center of the worm wheel. The rotating shaft is rotatably connected to the mounting plate. A stamping plate is fixedly provided on one side of the worm wheel.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions: As a further embodiment of this utility model: the stamping plate includes a bottom mold that is slidably mounted on the top of the base plate. The top of the bottom mold is provided with a mounting platform. Three mounting grooves are arranged circumferentially on the mounting platform. A stamping head is detachably mounted in each groove. The stamping head is covered by a top mold. The top mold and the bottom mold are connected by bolts.

[0008] As a further improvement of this utility model: the bottom of the bottom mold is integrally formed with a semi-circular slider, which forms a sliding pair with the semi-circular groove on the top of the bottom plate.

[0009] As a further improvement of this utility model, the bottom of the stamping head is elastically mounted inside a groove provided on the mounting platform.

[0010] As a further embodiment of this utility model: the fixing component includes fixing posts fixedly installed at the four corners of the mounting plate, fixing blocks are provided at the bottom of the fixing posts, and the fixing blocks are connected to the fixing posts through a limiting plate. The limiting plate covers the contact position between the fixing posts and the fixing blocks, and the limiting plate is connected to the mounting plate by bolts. The fixing blocks are fixedly installed at the four corners of the base plate.

[0011] As a further improvement of this utility model, the worm gear is semi-circular and fixedly installed on the side of the bottom mold near the worm.

[0012] As a further improvement of this utility model, the limiting ring is provided in two sets, and is respectively located at the end of the rotating rod near the worm and at the end of the worm away from the rotating rod.

[0013] As a further improvement of this utility model, the stamping head is made of a frosted material.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting an adjustment component, allows the semi-circular slider at the bottom of the stamping plate to slide along the semi-circular groove of the base plate, restricting the stamping plate to only make circular motion and avoiding swaying. When the stamping head rotates to the target position, the mating surface between the slider and the groove provides mechanical limit, and the position of the stamping head inside the stamping plate is adjusted by rotating the worm gear to drive the worm wheel to rotate, which facilitates switching between different stamping heads for stamping.

[0015] 2. This utility model, by setting a stamping plate and using a rotating adjustment component, can quickly rotate the target stamping head to the working position. The bottom of the stamping head is elastically installed, and the elastic element compresses and absorbs the impact force, reducing the instantaneous load on the mold and equipment. At the same time, when switching stamping heads, the stamping head will temporarily retract into the top mold. When the through hole overlaps with the stamping head, the stamping head can be released. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural diagram of the present invention; Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional view of the adjustment component of this utility model; Figure 5 This is an exploded view of the stamping plate of this utility model.

[0017] Figure label annotations: 1. Mounting plate; 2. Fixing component; 3. Base plate; 4. Adjustment component; 21. Bolt; 22. Fixing post; 23. Limiting plate; 24. Fixing block; 41. Rotating rod; 42. Limiting ring; 43. Worm gear; 44. Worm wheel; 45. Rotating shaft; 46. Stamping plate; 461. Bottom mold; 462. Mounting platform; 463. Punching head; 464. Top mold. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] In one embodiment, such as Figures 1-5 As shown, the die punch replacement structure includes a mounting plate 1, a fixing component 2 fixedly installed at the bottom of the mounting plate 1, a base plate 3 at the bottom of the fixing component 2, and an adjustment component 4 for replacing the punch installed on the base plate 3. In this embodiment, the traditional method requires disassembling and assembling bolt 21, while this structure only requires rotating the handle to switch punches, which greatly shortens the mold change time and is suitable for multi-variety, small-batch production scenarios. By setting the fixing component 2 to provide stable support, it is suitable for high-frequency stamping operations. At the same time, the adjustment component 4 is set to adjust the position of multiple stamping heads 463 to realize the conversion between different stamping heads 463, extend the required replacement interval, and reduce the replacement frequency.

[0020] In one embodiment, such as Figure 3 As shown, the fixing assembly 2 includes fixing posts 22 fixedly installed at the four corners of the mounting plate 1. Each fixing post 22 has a fixing block 24 at its bottom, and the fixing block 24 is connected to the fixing post 22 via a limiting plate 23. The limiting plate 23 covers the contact area between the fixing post 22 and the fixing block 24, and is connected to the mounting plate 1 via bolts 21. The fixing blocks 24 are fixedly installed at the four corners of the base plate 3. The fixing posts 22 are vertically fixed at the four corners of the mounting plate 1, forming the main load-bearing frame and fixing... Block 24 is fixed at the four corners of the base plate 3. The limiting plate 23 is fastened to the mounting plate 1 by bolts 21, which not only enhances the connection strength, but also prevents the fixed column 22 and the fixed block 24 from relative displacement or loosening during the stamping process. During the stamping process, the impact force will be transmitted to the fixed block 24 and the fixed column 22 through the base plate 3, effectively dispersing the stress and reducing the impact of vibration on the mold accuracy. In addition, the limiting plate 23 is connected by bolts 21 and can be disassembled when necessary, which facilitates the replacement or maintenance of the fixed column 22 or the fixed block 24 without disassembling the mold as a whole.

[0021] In one embodiment, such as Figure 4As shown, the adjusting assembly 4 includes a limiting ring 42 fixedly installed on the top of the base plate 3. A rotating rod 41 is rotatably mounted on the inner wall of the limiting ring 42. One end of the rotating rod 41 is provided with a rotating handle. A worm gear 43 is fixedly provided on the end of the rotating rod 41 away from the rotating handle. The worm gear 43 meshes with a worm wheel 44, and a rotating shaft 45 is fixedly provided at the center of the worm wheel 44. The rotating shaft 45 is rotatably connected to the mounting plate 1. A stamping plate 46 is fixedly provided on one side of the worm wheel 44. A semi-circular slider is integrally formed on the bottom of the bottom mold 461. The slider and the semi-circular groove on the top of the base plate 3 form a sliding pair. The worm wheel 44 is semi-circular and fixedly installed on the side of the bottom mold 461 near the worm gear 43. Two sets of limiting rings 42 are provided, respectively located at the end of the rotating rod 41 near the worm gear 43 and at the end of the worm gear 43 away from the rotating rod 43. The end position of 1; the operator rotates the rotating handle, which drives the rotating rod 41 to rotate. The worm 43 fixed at the end of the rotating rod 41 meshes with the semi-circular worm wheel 44, converting the horizontal rotational motion into the vertical axial rotational motion. It has a self-locking characteristic. The center of the worm wheel 44 is fixed with a rotating shaft 45, which is rotatably connected to the mounting plate 1 to ensure rotational stability. Since the worm wheel 44 is semi-circular, it only needs to rotate 180° to cover all work positions. The semi-circular slider at the bottom of the stamping plate 46 slides along the semi-circular groove of the base plate 3 to form a precise guide pair, which restricts the stamping plate 46 to only make circular motion and avoids swaying. When the stamping head 463 rotates to the target work position, the mating surface of the slider and the groove provides mechanical limit, further enhancing the positioning reliability. The position of the stamping head 463 in the stamping plate 46 can be adjusted by rotating the worm wheel 44, which facilitates switching between different stamping heads 463 for stamping.

[0022] In one embodiment, such as Figure 5As shown, the stamping plate 46 includes a bottom mold 461 slidably mounted on the top of the base plate 3. A mounting platform 462 is provided on the top of the bottom mold 461. Three mounting grooves are arranged circumferentially on the mounting platform 462. A stamping head 463 is detachably mounted in each groove, and the stamping head 463 is covered by a top mold 464. The top mold 464 and the bottom mold 461 are connected by bolts 21. The bottom of the stamping head 463 is elastically mounted inside the groove on the mounting platform 462. The stamping head 463 is made of frosted material. The mounting platform 462 has three mounting grooves arranged circumferentially on its top. Three mounting grooves are arranged, each of which can independently install a stamping head 463 of different specifications. The rotating adjustment component 4 can quickly rotate the target stamping head 463 to the working position. The bottom of the stamping head 463 is elastically mounted, and the elastic element compresses and absorbs the impact force, reducing the instantaneous load on the mold and equipment. At the same time, when switching the stamping head 463, the stamping head 463 will temporarily retract into the top mold 464. When the through hole overlaps with the stamping head 463, the stamping head 463 can be released. The surface of the stamping head 463 is frosted to increase the friction with the workpiece during operation and prevent the material from slipping.

[0023] The above embodiment discloses a die punch replacement structure. In this structure, a fixing component 2 is set up, and a fixing column 22 is vertically fixed at the four corners of the mounting plate 1 to form the main load-bearing frame. The fixing block 24 is fixed at the four corners of the base plate 3. The limiting plate 23 is fastened to the mounting plate 1 by bolts 21, which not only enhances the connection strength but also prevents the fixing column 22 and the fixing block 24 from relative displacement or loosening during the stamping process. At the same time, the adjusting component 4 is used to rotate the rotating handle, which drives the rotating rod 41 to rotate. The worm 43 fixed at the end of the rotating rod 41 meshes with the semi-circular worm wheel 44, converting the horizontal rotational motion into a vertical axial rotational motion, which facilitates the switching of different stamping heads 463 for stamping.

[0024] The above description is merely a specific embodiment of this application, but the scope of protection of this application 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 application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A die punch replacement structure comprising a mounting plate (1), a fixing assembly (2) fixedly arranged at the bottom of the mounting plate (1), and a bottom plate (3) arranged at the bottom of the fixing assembly (2), characterized in that, An adjustment assembly (4) for replacing the punch is installed on the base plate (3); The adjustment assembly (4) includes a limiting ring (42) fixedly installed on the top of the base plate (3). A rotating rod (41) is rotatably installed on the inner wall of the limiting ring (42). A rotating handle is provided at one end of the rotating rod (41). A worm (43) is fixedly installed at the end of the rotating rod (41) away from the rotating handle. The worm (43) meshes with a worm wheel (44). A rotating shaft (45) is fixedly installed at the center of the worm wheel (44). The rotating shaft (45) is rotatably connected to the mounting plate (1). A stamping plate (46) is fixedly installed on one side of the worm wheel (44).

2. The die punch replacement structure according to claim 1, characterized by, The stamping plate (46) includes a bottom mold (461) that is slidably mounted on the top of the base plate (3). The top of the bottom mold (461) is provided with a mounting platform (462). Three mounting grooves are arranged circumferentially on the mounting platform (462). A stamping head (463) is detachably mounted in each groove. The stamping head (463) is covered by a top mold (464). The top mold (464) and the bottom mold (461) are connected by bolts (21).

3. The die punch replacement structure according to claim 2, characterized by, The bottom of the bottom mold (461) is integrally formed with a semi-circular slider, which forms a sliding pair with the semi-circular groove on the top of the bottom plate (3).

4. The die punch replacement structure according to claim 2, characterized by, The bottom of the stamping head (463) is elastically mounted inside a groove provided on the mounting platform (462).

5. The die punch replacement structure according to Claim 1, characterized by The fixing component (2) includes fixing posts (22) fixedly installed at the four corners of the mounting plate (1). The fixing posts (22) are provided with fixing blocks (24) at their bottoms. The fixing blocks (24) and the fixing posts (22) are connected by limiting plates (23). The limiting plates (23) cover the contact position between the fixing posts (22) and the fixing blocks (24). The limiting plates (23) are connected to the mounting plate (1) by bolts (21). The fixing blocks (24) are fixedly installed at the four corners of the base plate (3).

6. The die punch replacement structure according to Claim 2, characterized by The worm gear (44) is semi-circular and fixedly installed on the bottom mold (461) near the worm (43).

7. The die punch replacement structure according to Claim 1, characterized by The limiting ring (42) is provided in two sets, and is respectively located at the end of the rotating rod (41) near the worm (43) and at the end of the worm (43) away from the rotating rod (41).

8. The die punch replacement structure according to Claim 2, characterized by The stamping head (463) is made of a frosted material.

Images