High-precision porous stamping die with anti-deviation positioning pin assembly

Abstract

The utility model relates to the technical field of stamping dies, and discloses a high-precision porous stamping die with an anti-deviation positioning pin assembly, which comprises a base, a driven gear is rotatably connected to the center of the top of the base, a driving gear is meshed with the front side of the driven gear, and a toothed plate is meshed with the front side of the driving gear. A lower die plate is fixedly connected to the top of the base, a female die is installed in the center of the top of the lower die plate, the lower die plate is connected with an upper die plate through a guide assembly, a male die is installed at the middle end of the bottom of the upper die plate, sliding plates are slidably connected to the front end and the rear end of the lower die plate, and the sliding plates are connected with driven gears through sliding assemblies. According to the utility model, accurate front and back limiting of workpieces and adaptation to different sizes are realized, so that the universality is improved; and meanwhile, the spring II is matched with the supporting plate, and a mechanical linkage dual demolding mode is adopted, so that the demolding time is shortened, the workpiece is prevented from being damaged, and the production efficiency and the product percent of pass are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a high-precision multi-hole stamping die with an anti-offset positioning pin assembly. Background Technology

[0002] In today's booming manufacturing industry, stamping is a key forming method in many fields such as metal processing. High-precision multi-hole stamping dies are an important tool for processing metal or non-metal sheets. They can use equipment such as presses to stamp multiple high-precision holes in the sheet in one go. The processed holes meet high standards in terms of dimensional accuracy, positional accuracy, and surface quality. They can be widely used in many industries such as electronics, automobiles, and aerospace to produce various parts with strict requirements for hole processing accuracy.

[0003] However, in actual production work, it has been found that existing stamping dies still have many problems:

[0004] During stamping, some stamping dies lack positioning structures or are difficult to accommodate workpieces of different sizes. Alternatively, adjustments require frequent replacement of the appropriate die, making the adjustment process complex, inefficient, and costly. In terms of demolding, existing multi-station stamping dies involve a cumbersome and time-consuming demolding process after stamping. They often rely on manual assistance or complex mechanical structures for demolding, resulting in the workpiece remaining in the die for too long, which greatly limits the improvement of production efficiency.

[0005] In response to this technical problem, this application proposes a high-precision multi-hole stamping die with an anti-offset positioning pin assembly. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the lack of positioning and anti-offset mechanisms and low efficiency in demolding. This invention proposes a high-precision multi-hole stamping die with an anti-offset positioning pin assembly. This stamping die achieves precise front and rear positioning of the workpiece and adapts to different sizes, improving versatility. Simultaneously, it employs a dual demolding method combining a spring and a support plate with mechanical linkage, shortening demolding time, preventing workpiece damage, and significantly improving production efficiency and product qualification rate.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A high-precision multi-hole stamping die with an anti-offset positioning pin assembly includes a base. A driven gear is rotatably connected to the top center of the base. A driving gear is meshed with the front side of the driven gear. A toothed plate is meshed with the front side of the driving gear. A lower template is fixedly connected to the top of the base. A concave die is installed at the top center of the lower template. An upper template is connected to the lower template through a guide assembly. A punch is installed at the bottom center of the upper template. Sliding plates are slidably connected to the front and rear ends of the lower template. The sliding plates are connected to the driven gear through a sliding assembly. Limiting rods are fixedly connected to the left and right ends of the top of the sliding plates.

[0009] Furthermore, a sliding groove is provided at the middle of both the front and rear sides of the die, a support plate is provided inside the sliding groove, an insert rod is fixedly connected to the bottom side of the inner wall of the sliding groove, a spring is provided on the outer side of the insert rod, and the top of the support plate on the adjacent side penetrates the top side of the inner wall of the sliding groove.

[0010] Furthermore, each of the top ends of the pallet is fixedly connected to a connecting rod, the outer side of the connecting rod is slidably connected to the upper template, and the top end of the connecting rod passes through the upper template and is fixedly connected to a limiting plate.

[0011] Furthermore, the guide assembly includes guide posts and sleeves. The guide posts are fixedly connected to the top four corners of the lower template, and the sleeves are fixedly connected to the bottom four corners of the upper template. The sleeves are slidably connected to the guide posts.

[0012] Furthermore, a spring is provided on the outer side of the guide post, and the top end of the spring abuts against the bottom side of the sleeve.

[0013] Furthermore, the sliding assembly includes a slide rod and a limiting groove. The slide rod is fixedly connected to the front and rear ends of the top of the driven gear, and the limiting groove is opened at one end of the top side of the slide plate. The slide rod is slidably connected to the inner wall of the limiting groove.

[0014] Furthermore, the toothed plate is rotatably connected to the base.

[0015] Furthermore, a collection box is slidably connected to the left side of the lower template.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, a linkage mechanism is formed by a toothed plate, a driving gear, a driven gear, a sliding plate, and a limiting rod. During stamping, the limiting rod can accurately limit the front and rear positions of the workpiece and prevent deviation. At the same time, by adjusting the toothed plate to change the position of the sliding plate, it can adapt to workpieces of different sizes, breaking the limitation of traditional molds that are difficult to be compatible with diverse workpieces, and greatly improving the versatility and positioning flexibility of the mold.

[0018] 2. In this utility model, after stamping, the second spring cooperates with the support plate to quickly lift the workpiece with its elastic potential energy, which greatly shortens the demolding time. If the second spring has insufficient elasticity, the demolding operation can also be completed through the mechanical linkage of the connecting rod, the limiting plate and the support plate when the upper template is raised. This effectively avoids the problem of workpiece deformation and damage caused by demolding difficulties. Compared with the traditional single demolding method, it significantly improves production efficiency and product qualification rate. Attached Figure Description

[0019] Figure 1 This is a perspective view of a high-precision multi-hole stamping die with an anti-offset positioning pin assembly proposed in this utility model;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the punch structure of a high-precision multi-hole stamping die with an anti-offset positioning pin assembly proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the pallet structure of a high-precision multi-hole stamping die with an anti-offset positioning pin assembly proposed in this utility model.

[0023] Legend:

[0024] 1. Base; 2. Lower template; 3. Guide assembly; 4. Upper template; 5. Cavity mold; 6. Punch mold; 7. Collection box; 8. Driven gear; 9. Slide plate; 10. Sliding assembly; 11. Limiting rod; 12. Driving gear; 13. Gear plate; 14. Slide groove; 15. Insert rod; 16. Support plate; 17. Connecting rod; 18. Spring 2; 19. Limiting plate; 301. Guide post; 302. Spring 1; 303. Sleeve; 1001. Slide rod; 1002. Limiting groove. Detailed Implementation

[0025] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-3This utility model provides an embodiment of a high-precision multi-hole stamping die with an anti-offset positioning pin assembly, comprising a base 1, a driven gear 8 rotatably connected to the top center of the base 1, a driving gear 12 meshing with the front side of the driven gear 8, a toothed plate 13 meshing with the front side of the driving gear 12, a lower template 2 fixedly connected to the top of the base 1, a concave die 5 installed at the top center of the lower template 2, an upper template 4 connected to the lower template 2 via a guide assembly 3, a punch 6 installed at the bottom center of the upper template 4, sliding plates 9 slidably connected to the front and rear ends of the lower template 2, the sliding plates 9 being connected to the driven gear 8 via a sliding assembly 10, and limit rods 11 fixedly connected to the left and right ends of the top of the sliding plates 9.

[0027] Specifically, the driven gear 8, which is rotatably connected to the top center of the base 1, the driving gear 12, which is meshed with the front side, and the toothed plate 13 cooperate with each other. When the toothed plate 13 moves, it drives the driving gear 12 to rotate, which in turn drives the driven gear 8 to rotate. The driven gear 8 is slidably connected to the limiting groove 1002 on the top side of the slide plate 9 through the slide rod 1001 in the sliding assembly 10, so that the slide plate 9 slides along the front and rear ends of the lower template 2. The limiting rod 11 on the top of the slide plate 9 limits the workpiece in front and behind during stamping to prevent displacement. At the same time, the position of the slide plate 9 can be changed by adjusting the degree of movement of the toothed plate 13, so as to adapt to workpieces of different sizes. Finally, rotating the toothed plate 13 positions the driving gear 12 to prevent it from rotating, ensuring that the limiting rod 11 is stably limited during stamping and avoiding failure of the limiting due to gear rotation.

[0028] Reference Figures 2-4 The front and rear sides of the die 5 are provided with grooves 14 at their middle ends. A support plate 16 is installed inside the groove 14. A rod 15 is fixedly connected to the bottom side of the inner wall of the groove 14. A spring 18 is installed on the outer side of the rod 15. The top of the support plate 16 on the adjacent side penetrates the top side of the inner wall of the groove 14. A connecting rod 17 is fixedly connected to the top of each support plate 16 at opposite ends. The outer side of the connecting rod 17 is slidably connected to the upper template 4. The top of the connecting rod 17 penetrates the upper template 4 and is fixedly connected to a limit plate 19. The guide assembly 3 includes a guide post 301 and a sleeve 303. The guide post 301 is fixedly connected to the top of the lower template 2. The sleeve 303 is fixedly connected to the bottom four corners of the upper template 4, and the sleeve 303 is slidably connected to the guide post 301; a spring 302 is provided on the outer side of the guide post 301, and the top of the spring 302 abuts against the bottom side of the sleeve 303; the sliding assembly 10 includes a slide rod 1001 and a limiting groove 1002, the slide rod 1001 is fixedly connected to the front and rear ends of the top of the driven gear 8, and the limiting groove 1002 is opened at one end of the top side of the slide plate 9, and the slide rod 1001 is slidably connected to the inner wall of the limiting groove 1002; the toothed plate 13 is rotatably connected to the base 1; a collection box 7 is slidably connected to the left side of the lower template 2.

[0029] Specifically, the sliding connection between the guide post 301 and the sleeve 303, in conjunction with spring 302, ensures precise guidance and smooth movement of the upper mold plate 4 and the lower mold plate 2 during the stamping process. Within the groove 14 at the midpoint of the front and rear sides of the die 5, spring 18, located on the outer side of the insert rod 15, cooperates with the support plate 16 to achieve efficient and reliable demolding. After stamping, spring 18, with its own elastic potential energy, quickly pushes the support plate 16 upwards, rapidly lifting the workpiece and significantly shortening demolding time, thus improving production efficiency. Even if spring 18's elasticity is insufficient or the workpiece cannot be directly lifted due to adhesion, when the upper mold plate 4 rises, it supports the limiting plate 19 through a sliding connection with the connecting rod 17, using mechanical linkage to lift the support plate 16, forming a double demolding guarantee mechanism. This effectively avoids workpiece deformation and damage caused by demolding difficulties, improving product qualification rate. Furthermore, this design eliminates the need for manual intervention during the demolding process, reducing labor intensity and minimizing human error. The collection box 7, which is slidably connected to the left side of the lower template 2, also plays an important role. It can collect the waste generated during the stamping process in a timely manner, keep the mold working area clean, and prevent the accumulation of waste from affecting the normal operation of the stamping operation. At the same time, the sliding connection makes it easy for workers to quickly disassemble and clean the collection box 7, which is convenient to operate, effectively reduces the downtime of equipment cleaning, improves production efficiency, and the standardized waste collection is also conducive to the subsequent waste classification, treatment and recycling.

[0030] Working principle: First, the drive gear 12 and driven gear 8 are rotated by rotating the gear plate 13. The driven gear 8 slides in the limiting groove 1002 via the slide rod 1001, causing the slide plate 9 to slide along the lower template 2. The position of the limiting rod 11 is adjusted to adapt to workpieces of different sizes and to limit the front and rear movement. Then, the gear plate 13 is rotated to position the drive gear 12 to prevent it from rotating. During the stamping process, the guide post 301 and the sleeve 303 cooperate with the spring 1 302 to ensure that the upper template 4 and the lower template 2 are accurately guided and move smoothly. The punch 6 and the die 5 complete the multi-hole stamping. After the stamping is completed, the spring 2 18 pushes the support plate 16 to lift the workpiece to achieve rapid demolding. If the spring 2 18 fails, the upper template 4 rises and drives the support plate 16 to complete the demolding through the connecting rod 17. At the same time, the collection box 7 on the left side of the lower template 2 collects the waste material in time to ensure that the mold working area is clean.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 high-precision multi-hole stamping die with an anti-offset positioning pin assembly, characterized in that: The system includes a base (1), a driven gear (8) is rotatably connected to the top center of the base (1), a driving gear (12) is meshed with the front side of the driven gear (8), a toothed plate (13) is meshed with the front side of the driving gear (12), a lower template (2) is fixedly connected to the top of the base (1), a concave mold (5) is installed at the top center of the lower template (2), an upper template (4) is connected to the lower template (2) through a guide assembly (3), a punch (6) is installed at the bottom center of the upper template (4), a sliding plate (9) is slidably connected to the front and rear ends of the lower template (2), the sliding plate (9) is connected to the driven gear (8) through a sliding assembly (10), and a limit rod (11) is fixedly connected to the left and right ends of the top of the sliding plate (9).

2. A high-precision multi-hole stamping die with an anti-offset positioning pin assembly as described in claim 1, characterized in that: The front and rear sides of the die (5) are provided with a groove (14) at the middle. A support plate (16) is provided inside the groove (14). A rod (15) is fixedly connected to the bottom side of the inner wall of the groove (14). A spring (18) is provided on the outside of the rod (15). The top of the support plate (16) on the adjacent side penetrates the top side of the inner wall of the groove (14).

3. A high-precision multi-hole stamping die with an anti-offset positioning pin assembly according to claim 2, characterized in that: Each of the top ends of the tray (16) is fixedly connected to a connecting rod (17). The outer side of the connecting rod (17) is slidably connected to the upper template (4). The top end of the connecting rod (17) passes through the upper template (4) and is fixedly connected to a limiting plate (19).

4. A high-precision multi-hole stamping die with an anti-offset positioning pin assembly according to claim 1, characterized in that: The guide assembly (3) includes a guide post (301) and a sleeve (303). The guide post (301) is fixedly connected to the top four corners of the lower template (2), and the sleeve (303) is fixedly connected to the bottom four corners of the upper template (4). The sleeve (303) is slidably connected to the guide post (301).

5. A high-precision multi-hole stamping die with an anti-offset positioning pin assembly according to claim 4, characterized in that: A spring (302) is provided on the outside of the guide post (301), and the top of the spring (302) abuts against the bottom side of the sleeve (303).

6. A high-precision multi-hole stamping die with an anti-offset positioning pin assembly according to claim 1, characterized in that: The sliding assembly (10) includes a slide rod (1001) and a limiting groove (1002). The slide rod (1001) is fixedly connected to the front and rear ends of the top of the driven gear (8). The limiting groove (1002) is opened at one end of the top side of the slide plate (9). The slide rod (1001) is slidably connected to the inner wall of the limiting groove (1002).

7. A high-precision multi-hole stamping die with an anti-offset positioning pin assembly according to claim 1, characterized in that: The toothed plate (13) is rotatably connected to the base (1).

8. A high-precision multi-hole stamping die with an anti-offset positioning pin assembly according to claim 1, characterized in that: The lower template (2) is slidably connected to a collection box (7) on its left side.

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