Precise thinning die
The positioning and demolding mechanism driven by hydraulic cylinders and pneumatic cylinders solves the problem of inaccurate positioning of precision thinning molds, achieving precise positioning and rapid demolding of the molds, thus improving processing accuracy and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-07
AI Technical Summary
Existing precision thinning dies cannot achieve accurate positioning, resulting in product size deviations, affecting assembly and interchangeability, reducing product quality stability and enterprise competitiveness.
The positioning and demolding mechanism is driven by hydraulic cylinders and air cylinders. The hydraulic cylinders drive the connecting plate and follower block to achieve precise positioning, while the air cylinders drive the push plate and sliding block to achieve rapid demolding, ensuring the stability and accuracy of the mold during the thinning process.
It enables precise mold positioning and rapid demolding, improves processing accuracy and efficiency, reduces downtime, and ensures product quality and production efficiency.
Smart Images
Figure CN224087757U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, and in particular to a precision thinning die. Background Technology
[0002] In the electronics industry, it is used to manufacture thin and light mobile phone casings and precision electronic component packaging; in the automotive industry, it is used to produce lightweight body structural parts and interior parts; and in the aerospace field, it provides strong support for the processing of high-performance parts for aircraft and spacecraft.
[0003] In the existing technology, some precision thinning dies are customized tools designed specifically for material thinning and precision forming. They are mainly composed of upper and lower dies. Through a high-precision matching and guiding system, they ensure that the material deforms evenly during the stamping process. They are often made of high-quality steel to withstand large stamping pressure. In terms of structural design, they focus on optimizing the demolding mechanism to prevent material from getting stuck in the mold.
[0004] However, in actual use, the inability to accurately position the thinning die will cause product size deviation, affecting assembly and interchangeability. For example, in the production of electronic component housings and automotive parts, the die cannot be used due to inaccurate dimensions, which also affects product quality stability and reduces the competitiveness of enterprises. In order to address the above problems, a precision thinning die is proposed. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a precision thinning die, which aims to improve the problem that some precision thinning dies in the prior art cannot accurately position the thinning die.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A precision thinning mold includes a base, a plurality of guide pillars fixedly connected to the outside of the base, a connecting block 1 fixedly connected to the outside of the guide pillars, an upper mold assembly fixedly connected to the bottom of the connecting block 1, a positioning mechanism fixedly connected inside the base, and a demolding mechanism fixedly connected to the outside of the base.
[0008] The positioning mechanism includes an L-shaped plate, a support plate 1 fixedly connected to the outside of the L-shaped plate, a drive assembly fixedly connected to the outside of the support plate 1, a follower block slidably connected inside the base, a connecting plate 1 fixedly connected to the outside of the follower block, a follower plate fixedly connected to the outside of the connecting plate 1, a connecting plate 2 fixedly connected to the outside of the follower plate, a fixing plate fixedly connected to the outside of the connecting plate 2, and a sliding assembly fixedly connected to the bottom of the follower block.
[0009] As a further description of the above technical solution:
[0010] The drive assembly includes a hydraulic cylinder, the drive end of which is fixedly connected to a connecting block two, and a plurality of connecting plates are fixedly connected to the outside of the connecting block two. The hydraulic cylinder is fixedly connected to the outside of the support plate one.
[0011] As a further description of the above technical solution:
[0012] The sliding assembly includes a follower block, and a sliding groove plate is slidably connected to the outside of the follower block. The connecting plate is fixedly connected to the outside of the follower block.
[0013] As a further description of the above technical solution:
[0014] The demolding mechanism includes a second support plate, the second support plate having multiple grooves inside, sliding blocks slidably connected to the outside of the grooves, and the outside of the second support plate being fixedly connected to the inside of the base.
[0015] As a further description of the above technical solution:
[0016] The sliding block is externally fixedly connected to a lower module, and the base is externally fixedly connected to a protective shell;
[0017] As a further description of the above technical solution:
[0018] The protective shell has multiple cylinders fixedly connected inside, and the drive end of each cylinder is fixedly connected to a push plate.
[0019] As a further description of the above technical solution:
[0020] The connecting plate 2 is externally fixedly connected to a limiting block, and the limiting block is internally slidably connected to a connecting rod, which is externally fixedly connected to the outside of the fixed plate.
[0021] As a further description of the above technical solution:
[0022] One end of the limiting block is fixedly connected to the outside of the connecting rod, and the other end of the limiting block is fixedly connected to the inside of the base.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, the connecting plate is driven by a hydraulic cylinder to move, which in turn drives the follower block to move. The follower block slides on the slide plate, which in turn drives the first connecting plate to move the follower plate, and the second connecting plate to move the fixed plate. This achieves precise positioning of the thinning mold, ensuring that the mold remains stable during the thinning process, improving processing accuracy. At the same time, precise positioning helps to quickly change the mold, reduce downtime, and improve efficiency.
[0025] 2. In this utility model, the cylinder drives the push plate to move, which in turn drives the lower mold to move, which in turn drives the sliding block to move. The sliding block then slides in the groove, thereby achieving rapid demolding. This allows for quick and smooth separation of the upper and lower molds, reducing demolding time and preventing damage to the molded parts, thus ensuring product precision and quality. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a precision thinning mold proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the structure of an L-shaped plate for a precision thinning mold proposed in this utility model;
[0028] Figure 3 This is a schematic diagram of the structure of a hydraulic cylinder for a precision thinning mold proposed in this utility model;
[0029] Figure 4 This is a schematic diagram of the push plate of a precision thinning mold proposed in this utility model.
[0030] Legend:
[0031] 1. Base; 2. Guide post; 3. Connecting block one; 4. Upper module; 5. L-shaped plate; 6. Support plate one; 7. Hydraulic cylinder; 8. Connecting block two; 9. Connecting plate; 10. Follower block; 11. Slide plate; 12. Connecting plate one; 13. Follower plate; 14. Connecting plate two; 15. Fixing plate; 16. Limiting block; 17. Connecting rod; 18. Support plate two; 19. Slide; 20. Sliding block; 21. Lower module; 22. Protective shell; 23. Cylinder; 24. Push plate. Detailed Implementation
[0032] 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.
[0033] Reference Figures 1 to 3This utility model provides an embodiment of a precision thinning mold, comprising a base 1, which is rectangular in shape, with a flat upper part and mounting holes and reinforcing ribs at the lower part. Multiple guide pillars 2 are fixedly connected to the outside of the base 1, perpendicular to the base 1 and evenly distributed along its length. Connecting blocks 3 are fixedly connected to the outside of the guide pillars 2, and an upper mold assembly 4 is fixedly connected to the bottom of the connecting blocks 3. A positioning mechanism is fixedly connected inside the base 1, and a demolding mechanism is fixedly connected to the outside of the base 1. The demolding mechanism is used to push the formed part out of the mold after the thinning operation is completed. The positioning mechanism includes an L-shaped plate 5, with a support plate 6 fixedly connected to the outside of the L-shaped plate 5. The support plate 6 is a rectangular steel plate with a finely ground surface to improve wear resistance. A driving assembly is fixedly connected to the outside of the support plate 6. A follower block 10 is slidably connected inside the base 1. The follower block 10 is a rectangular metal block with all four sides polished to reduce friction.
[0034] The follower block 10 is externally fixedly connected to a connecting plate 12, which is a rectangular metal plate. Its two ends are fixedly connected to the follower block 10 and the connecting plate 14 respectively. The follower plate 13 is fixedly connected to the outside of the connecting plate 12. The connecting plate 14 is fixedly connected to the outside of the follower plate 13. The fixing plate 15 is fixedly connected to the outside of the connecting plate 14. The bottom of the follower block 10 is fixedly connected to a sliding assembly. The driving assembly includes a hydraulic cylinder 7. The driving end of the hydraulic cylinder 7 is fixedly connected to a connecting block 8. Multiple connecting plates 9 are fixedly connected to the outside of the connecting block 8. The hydraulic cylinder 7 is fixedly connected to the outside of the support plate 6. The sliding assembly is used to guide the follower block 10 to move smoothly along a predetermined trajectory. The follower block 10 is slidably connected to a slide plate 11. The connecting plates 9 are fixedly connected to the outside of the follower block 10.
[0035] Reference Figures 2 to 4 The demolding mechanism includes a second support plate 18, which is rectangular in shape, with moderate thickness and certain strength and rigidity to withstand the force during demolding. The support plate 18 has multiple sliding grooves 19 inside, which are rectangular grooves with dimensions matching the sliding block 20. The surface is lubricated to reduce friction. The sliding block 20 is slidably connected to the outside of the sliding grooves 19. The support plate 18 is fixedly connected to the inside of the base 1. The lower module 21 is fixedly connected to the outside of the sliding block 20. The lower module 21 is a rectangular metal block with dimensions corresponding to the upper module 4. The surface of the lower module 21 is finely ground to ensure good fit with the upper module 4. When subjected to thrust, it can move smoothly along the direction of the sliding block 20, thereby achieving relative movement with the upper module 4 and achieving the purpose of demolding. The base 1 is fixedly connected to the outside of a protective shell 22, and multiple cylinders 23 are fixedly connected inside the protective shell 22.
[0036] The cylinder 23 is cylindrical and evenly distributed on both sides of the inner wall of the protective shell 22. It is fixed inside the protective shell 22 by bolts and other fasteners. A push plate 24 is fixedly connected to the drive end of the cylinder 23. The push plate 24 is a rectangular metal plate with an area larger than the cylinder diameter of the cylinder 23 and a moderate thickness. When the cylinder 23 is working, the piston rod pushes the push plate 24 forward or backward, thereby driving the lower mold 21 to move along the direction of the sliding block 20 to realize the demolding action. A limit block 16 is fixedly connected to the outside of the connecting plate 24. The function is to limit the range of motion of the connecting rod 17 and prevent it from being damaged due to excessive displacement during operation. The connecting rod 17 is slidably connected inside the limiting block 16. The connecting rod 17 is a round metal rod with a diameter smaller than the diameter of the inner hole of the limiting block 16, so as to ensure that the connecting rod 17 can slide freely inside the limiting block 16. The connecting rod 17 is fixedly connected to the outside of the fixing plate 15. One end of the limiting block 16 is fixedly connected to the outside of the connecting rod 17, and the other end of the limiting block 16 is fixedly connected to the inside of the base 1.
[0037] Working principle: The hydraulic cylinder 7 drives the connecting block 8 to move, which in turn drives the connecting plate 9 to move. The connecting plate 9 then drives the follower block 10 to move, which in turn drives the connecting plate 12 to move. The connecting plate 12 then drives the fixing plate 15 to move, causing the connecting rod 17 to slide inside the limit block 16. This, in turn, drives the entire upper mold 4 to perform accurate positioning relative to the base 1, ensuring that the mold remains stable during the thinning process, improving processing accuracy, and reducing downtime.
[0038] The push plate 24 moves forward or backward under the push of the cylinder 23, and the sliding block 20 drives the lower module 21 to move smoothly along a predetermined trajectory, realizing relative movement with the upper module 4, so that the molded workpiece can be smoothly pushed out of the mold. In the whole process, the components work together to ensure the accuracy and stability of the processing. The guide post 2 provides guidance to ensure that the upper module 4 moves in a straight line. The support plate 6 enhances the structural strength and prevents it from being damaged due to excessive displacement during operation. The cylinder 23 inside the protective shell 22 provides a stable power source for the demolding action, ensuring the smooth progress of the entire demolding process.
[0039] 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 precision thinning die, comprising a base (1), characterized in that: The base (1) is fixedly connected to a plurality of guide pillars (2), the guide pillars (2) are fixedly connected to a connecting block (3), the bottom of the connecting block (3) is fixedly connected to an upper module (4), the base (1) is fixedly connected to a positioning mechanism, and the base (1) is fixedly connected to a demolding mechanism. The positioning mechanism includes an L-shaped plate (5), a support plate (6) is fixedly connected to the outside of the L-shaped plate (5), a drive assembly is fixedly connected to the outside of the support plate (6), a follower block (10) is slidably connected inside the base (1), a connecting plate (12) is fixedly connected to the outside of the follower block (10), a follower plate (13) is fixedly connected to the outside of the connecting plate (12), a connecting plate (14) is fixedly connected to the outside of the follower plate (13), a fixing plate (15) is fixedly connected to the outside of the connecting plate (14), and a sliding assembly is fixedly connected to the bottom of the follower block (10).
2. The precision thinning die according to claim 1, characterized in that: The drive assembly includes a hydraulic cylinder (7), the drive end of which is fixedly connected to a connecting block two (8), and a plurality of connecting plates (9) are fixedly connected to the outside of the connecting block two (8). The outside of the hydraulic cylinder (7) is fixedly connected to the outside of the support plate one (6).
3. The precision thinning die according to claim 2, characterized in that: The sliding assembly includes a follower block (10), and a sliding groove plate (11) is slidably connected to the outside of the follower block (10). The connecting plate (9) is fixedly connected to the outside of the follower block (10).
4. A precision thinning die according to claim 2, characterized in that: The demolding mechanism includes a second support plate (18), the second support plate (18) has multiple grooves (19) inside, a sliding block (20) is slidably connected to the outside of the grooves (19), and the outside of the second support plate (18) is fixedly connected to the inside of the base (1).
5. A precision thinning die according to claim 4, characterized in that: The sliding block (20) is externally fixedly connected to a lower module (21), and the base (1) is externally fixedly connected to a protective shell (22).
6. A precision thinning die according to claim 5, characterized in that: Multiple cylinders (23) are fixedly connected inside the protective shell (22), and a push plate (24) is fixedly connected to the drive end of the cylinder (23).
7. A precision thinning die according to claim 1, characterized in that: The connecting plate 2 (14) is externally fixedly connected to a limiting block (16), and the limiting block (16) is internally slidably connected to a connecting rod (17), which is externally fixedly connected to the outside of the fixing plate (15).
8. A precision thinning die according to claim 7, characterized in that: One end of the limiting block (16) is fixedly connected to the outside of the connecting rod (17), and the other end of the limiting block (16) is fixedly connected to the inside of the base (1).