Efficient stamping device for special-shaped hole of steel plate

Abstract

This utility model relates to a high-efficiency stamping device for irregularly shaped holes in steel plates, belonging to the technical field of steel plate processing equipment. It includes a bed, a stamping drive mechanism, an upper die assembly, and a lower die assembly. The lower die assembly includes a lower die base, an irregularly shaped die, a positioning block, and a positioning through hole. The irregularly shaped die and the lower die base are positioned and installed through the positioning block and the positioning through hole. The upper die assembly includes an upper die base, an irregularly shaped punch, a quick-change block, and a quick-change positioning groove. The upper die base and the irregularly shaped punch are fitted together through the quick-change block and the quick-change positioning groove. Both the irregularly shaped die and the irregularly shaped punch are automatically positioned and fitted using a triangular pyramid structure, resulting in good positioning effect, ensuring the assembly accuracy of the irregularly shaped die and punch, guaranteeing the contour quality and dimensional consistency of the irregularly shaped holes, and effectively reducing burrs. Suction force further ensures the stability of the fitting. When changing to dies for different shaped holes, only the punch and the corresponding die need to be replaced, resulting in short die-changing time, making it particularly suitable for flexible production needs of multiple varieties and small batches.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel plate processing equipment, specifically relating to a high-efficiency stamping processing device for irregular holes in steel plates. Background Technology

[0002] In sheet metal processing, it is often necessary to process various non-circular irregular holes on steel plates, such as oblong holes, polygonal holes, and irregular curved holes. Traditional processing methods mainly involve using ordinary punch presses with special dies for stamping, or CNC laser cutting.

[0003] Existing stamping equipment has low die positioning accuracy. When changing to different shaped die, it takes a long time to position the die, resulting in long die changeover time and low efficiency. It is not suitable for small-batch, multi-variety production. Summary of the Invention

[0004] In order to overcome the problems of low mold positioning accuracy and long positioning time required when changing molds of different hole shapes in existing stamping equipment, which leads to low efficiency and is not suitable for small-batch, multi-variety production, this utility model provides a high-efficiency stamping processing device for irregular holes in steel plates with accurate positioning and quick mold changing.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A high-efficiency stamping processing device for irregular holes in steel plates mainly includes a bed 1, a stamping drive mechanism 2, an upper die assembly 3, and a lower die assembly 4. A worktable 11 is provided on the front side of the bed 1. The stamping drive mechanism 2 is mounted on the bed 1, positioned above the worktable 11. The upper die assembly 3 is mounted at the bottom of the stamping drive mechanism 2. The lower die assembly 4 is mounted on the worktable 11, positioned above the lower die assembly 4. The lower die assembly 4 includes a lower die base 41 and an irregular die 42. The lower die base 41 is mounted on the worktable 11. The bottom of the irregular die 42 is provided with a positioning block 43 of an inverted triangular pyramid structure. The lower die base 41 is provided with... The positioning through hole 44 is an inverted triangular pyramid structure that matches the positioning block 43. The positioning block 43 is embedded in the positioning through hole 44. The irregular die 42 and the lower die base 41 are positioned and installed through the positioning block 43 and the positioning through hole 44. The contour of the cavity of the irregular die 42 matches the contour of the irregular hole to be processed. The upper die assembly 3 includes an upper die base 31 and an irregular punch 32. The irregular punch 32 is provided with a quick-change block 33 of triangular pyramid structure. The upper die base 31 is provided with a quick-change positioning groove 34 of triangular pyramid structure that matches the quick-change block 33. The upper die base 31 is fixedly installed at the bottom of the stamping drive mechanism 2. The upper die base 31 and the irregular punch 32 are embedded in the quick-change positioning groove 34 through the quick-change block 33. An adsorption magnet 35 is embedded in the quick-change block 33.

[0006] Furthermore, a magnetic block 45 is embedded at the bottom of the positioning block 43.

[0007] Furthermore, the quick-change block 33 is equipped with an elastic component 5 at its bottom, and an unloading push plate 6 is installed at the bottom of the elastic component 5. The unloading push plate 6 is provided with a through hole 61, and the through hole 61 is fitted onto the irregular punch 32 with a gap.

[0008] Furthermore, the elastic component 5 includes a sleeve 51, a spring 52, and a telescopic rod 53. The sleeve 51 is installed upright at the bottom of the quick-change block 33, the spring 52 is installed inside the sleeve 51, and the telescopic rod 53 is installed inside the sleeve 51 to compress the spring 52 and can be slidably limited. The bottom end of the telescopic rod 53 is installed on the unloading push plate 6.

[0009] The beneficial effects of this utility model are: This utility model utilizes a truncated triangular pyramid structure for automatic positioning and installation of both the irregularly shaped concave and convex dies, ensuring excellent positioning accuracy and guaranteeing the assembly precision of the irregularly shaped dies and convex dies. This ensures the contour quality and dimensional consistency of the irregularly shaped holes and effectively reduces burrs. The suction force further ensures the stability of the installation. When changing to dies with different shapes of irregularly shaped holes, only the convex die and the corresponding concave die need to be replaced, resulting in short die-changing time. This makes it particularly suitable for flexible production needs involving multiple varieties and small batches. Attached Figure Description

[0010] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0011] Figure 2 yes Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0012] Figure 3 This is a three-dimensional schematic diagram of the installation structure of the upper mold component of this utility model.

[0013] Figure 4 This is a schematic diagram of the installation structure of the lower mold base of this utility model.

[0014] Figure 5 This is a three-dimensional schematic diagram of the irregular concave mold of this utility model.

[0015] Figure 6 This is a schematic diagram of the upper mold base installation structure of this utility model.

[0016] Figure 7 This is a three-dimensional schematic diagram of the irregular punch, elastic component and unloading push plate of this utility model.

[0017] Figure 8 This is a cross-sectional structural diagram of the irregular punch, elastic component and unloading push plate of this utility model. Detailed Implementation

[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0019] This utility model discloses a high-efficiency stamping device for irregularly shaped holes in steel plates. The device mainly includes a bed 1, a stamping drive mechanism 2, an upper die assembly 3, and a lower die assembly 4. A worktable 11 is provided on the front side of the bed 1. The stamping drive mechanism 2 is mounted on the bed 1, positioned above the worktable 11. The upper die assembly 3 is mounted at the bottom of the stamping drive mechanism 2, and the lower die assembly 4 is mounted on the worktable 11, positioned above the lower die assembly 4. The lower die assembly 4 includes a lower die base 41 and an irregularly shaped die 42. The lower die base 41 is mounted on the worktable 11. The irregularly shaped die 42 has a positioning block 43 with an inverted triangular pyramid structure at its bottom. The lower die base 41 has a positioning through hole 44 with an inverted triangular pyramid structure that matches the positioning block 43. The positioning block 43 is embedded in the positioning through hole 44. The irregularly shaped die 42 and the lower die base 41 are positioned and installed through the positioning block 43 and the positioning through hole 44. During assembly, the positioning block 43 is simply placed in the positioning through hole 44. Under its gravity, the three inclined sides of the positioning block 43 automatically match and fit with the three inclined sides of the positioning through hole 44, enabling automatic positioning and stability. During disassembly, it can be removed by applying a pulling force. The contour of the die cavity of the irregularly shaped die 42. The upper die assembly 3 is designed to match the contour of the irregular hole to be processed. It includes an upper die base 31 and an irregular punch 32. The irregular punch 32 is equipped with a quick-change block 33 of a truncated triangular pyramid structure. The upper die base 31 is equipped with a quick-change positioning groove 34 of a truncated triangular pyramid structure that matches the quick-change block 33. The upper die base 31 is fixedly installed at the bottom of the stamping drive mechanism 2. The upper die base 31 and the irregular punch 32 are fitted into the quick-change positioning groove 34 via the quick-change block 33. The quick-change block 33 is equipped with an adsorption magnet 35. By placing the quick-change block 33 into the quick-change positioning groove 34 and applying a slight upward pushing force to the quick-change block 33, the three inclined sides of the quick-change block 33 will automatically engage with the quick-change positioning groove. The three inclined sides of the positioning groove 34 match and fit together to complete the positioning. The positioning accuracy and installation stability are maintained by the adsorption force of the adsorption magnet 35. The irregular concave mold 42 and irregular convex mold 32 of this utility model are automatically positioned and installed by the triangular pyramid structure. The positioning effect is good, ensuring the assembly accuracy of the irregular concave mold 42 and irregular convex mold 32, ensuring the contour quality and dimensional consistency of the irregular hole, and effectively reducing burrs. The suction force further ensures the stability of the installation. When changing the mold of irregular hole with different shapes, only the convex mold and the corresponding concave mold need to be replaced. The mold change time is short, which is particularly suitable for the flexible production needs of multiple varieties and small batches.

[0020] The positioning block 43 is fitted with a magnetic block 45 at its bottom to enhance the stability and reliability of the irregularly shaped die 42.

[0021] The quick-change block 33 has an elastic component 5 installed at its bottom, and a discharge push plate 6 is installed at the bottom of the elastic component 5. The discharge push plate 6 has a through hole 61, which is fitted onto the irregular punch 32 with a gap. During stamping, the discharge push plate 6 presses on the workpiece. As the stamping drive mechanism 2 pushes out, the elastic component 5 retracts, and the irregular punch 32 completes the stamping. When the stamping drive mechanism 2 retracts, the elastic component 5 extends out and pushes the workpiece off the irregular punch 32, avoiding the workpiece from getting stuck on the irregular punch 32. No manual unloading is required, which further improves the working efficiency of this utility model.

[0022] The elastic component 5 includes a sleeve 51, a spring 52, and a telescopic rod 53. The sleeve 51 is installed upright at the bottom of the quick-change block 33. The spring 52 is installed inside the sleeve 51. The telescopic rod 53 compresses the spring 52 and is slidably limited inside the sleeve 51. The bottom end of the telescopic rod 53 is installed on the unloading push plate 6. Guided by the sleeve 51, the elastic component 5 is stable in operation. It has a simple structure and reliable operation.

[0023] Work process: During assembly, simply place the positioning block 43 into the positioning through hole 44. Under its own gravity, the three inclined sides of the positioning block 43 automatically match and engage with the three inclined sides of the positioning through hole 44, achieving automatic positioning and stability. For disassembly, apply a pulling force to remove it. Place the quick-change block 33 into the quick-change positioning groove 34, and apply a slight upward pushing force to ensure that the three inclined sides of the quick-change block 33 automatically match and engage with the three inclined sides of the quick-change positioning groove 34, thus completing the positioning. The adsorption force of the adsorption magnet 35 maintains positioning accuracy and installation stability. During stamping, the unloading push plate 6 presses against the workpiece. As the stamping drive mechanism 2 extends, the elastic component 5 retracts, and the irregular punch 32 completes the stamping. When the stamping drive mechanism 2 retracts, the elastic component 5 extends and pushes the workpiece off the irregular punch 32, preventing the workpiece from getting stuck on the irregular punch 32. This eliminates the need for manual unloading and further improves the working efficiency of this invention. Both the irregular die 42 and the irregular punch 32 of this invention are automatically positioned and installed using a triangular pyramid structure, resulting in good positioning and ensuring the assembly accuracy of the irregular die 42 and the irregular punch 32. This ensures the contour quality and dimensional consistency of the irregular hole and effectively reduces burrs. The suction force further ensures the stability of the installation. When changing to molds with different shapes of irregular holes, only the punch and the corresponding die need to be replaced, resulting in short mold change time. This is particularly suitable for flexible production needs with multiple varieties and small batches.

[0024] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A high-efficiency stamping device for irregular holes in steel plates, characterized in that: The high-efficiency stamping processing device for irregular holes in steel plates includes a bed (1), a stamping drive mechanism (2), an upper die assembly (3), and a lower die assembly (4). A worktable (11) is provided on the front side of the bed (1). The stamping drive mechanism (2) is installed on the bed (1) and is located above the worktable (11). The upper die assembly (3) is installed at the bottom of the stamping drive mechanism (2). The lower die assembly (4) is installed on the worktable (11) and is located above the lower die assembly (4). The lower die assembly (4) includes a lower die base (41) and an irregular die (42). The lower die base (41) is installed on the worktable (11). The irregular die (42) has an inverted triangular pyramidal truncated block (43) at the bottom. The lower die base (41) has an inverted truncated block (43) that matches the positioning block (43). The positioning through hole (44) of the triangular pyramid structure is fitted with the positioning block (43) and the positioning through hole (44). The irregular die (42) and the lower die base (41) are positioned and installed through the positioning block (43) and the positioning through hole (44). The contour of the cavity of the irregular die (42) matches the contour of the irregular hole to be processed. The upper die assembly (3) includes the upper die base (31) and the irregular punch (32). The irregular punch (32) is provided with a quick-change block (33) of the triangular pyramid structure. The upper die base (31) is provided with a quick-change positioning groove (34) of the triangular pyramid structure that matches the quick-change block (33). The upper die base (31) is fixedly installed at the bottom of the stamping drive mechanism (2). The upper die base (31) and the irregular punch (32) are fitted with the quick-change positioning groove (34) through the quick-change block (33). The quick-change block (33) is fitted with an adsorption magnet (35).

2. The high-efficiency stamping device for irregular holes in steel plates as described in claim 1, characterized in that: The bottom of the positioning block (43) is fitted with a magnetic block (45).

3. The high-efficiency stamping device for irregular holes in steel plates as described in claim 1 or 2, characterized in that: The quick-change block (33) is equipped with an elastic component (5) at the bottom, and a discharge push plate (6) is installed at the bottom of the elastic component (5). The discharge push plate (6) is provided with a through hole (61), and the through hole (61) is fitted onto the irregular punch (32) with a gap.

4. The high-efficiency stamping device for irregular holes in steel plates as described in claim 3, characterized in that: The elastic component (5) includes a sleeve (51), a spring (52), and a telescopic rod (53). The sleeve (51) is installed upright at the bottom of the quick-change block (33). The spring (52) is installed inside the sleeve (51). The telescopic rod (53) compresses the spring (52) and is slidably limited inside the sleeve (51). The bottom end of the telescopic rod (53) is installed on the unloading push plate (6).

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