A positioning fixture for processing an injection mold

Abstract

The utility model provides a kind of positioning fixture for processing injection mold, it is related to mold processing technical field, including support seat, further include: positioning assembly, positioning assembly includes the first hydraulic push rod being installed in support seat, the output end of first hydraulic push rod is connected with moving block, in the utility model, when starting positioning fixture, first hydraulic push rod starts, its output end promotes moving block to move in support seat, moving block drives first connecting block to slide along guide rod, ensure that moving is stable, while the positioning plate of moving block top moves, preliminary positioning is carried out to the mold on first support plate, subsequently, start second hydraulic push rod, its output end promotes second connecting block to move down, since second connecting block bottom rotatably connected with first rotating block, and is provided with press block, when press block contacts mold surface, angle can be self-adapting adjustment, adhere to irregular profile of mold, realize even pressure by hydraulic thrust, ensure that mold is positioned stable.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, and in particular to a positioning fixture for processing injection molds. Background Technology

[0002] Positioning fixtures for injection molds are mainly used to ensure accurate mold alignment during the injection molding process, thereby improving product molding accuracy and production efficiency. Traditional positioning fixtures have problems such as inaccurate positioning and inconvenient adjustment. Therefore, it is necessary to develop more stable and flexible fixture designs to improve positioning accuracy and production stability during the production process.

[0003] However, in actual use, the following shortcomings still exist. For example, existing positioning fixtures for processing injection molds cannot adaptively adjust their angles to fit the irregular contours of the mold and achieve uniform clamping through hydraulic thrust to ensure stable mold positioning. The contours of molds usually have complex curved surfaces, inclined surfaces, or irregular shapes. If the fixture cannot adaptively adjust its angle, the contact points between the mold and the fixture may be uneven and unable to fit completely. The mold may experience slight displacement or tilting during processing, resulting in a decrease in processing accuracy. If the fixture cannot adaptively adjust its angle, the mold position needs to be manually adjusted each time it is clamped, which is time-consuming and labor-intensive. Gaps or friction may occur between the mold and the fixture due to the inability to fit properly. Unstable mold positioning or uneven clamping force may cause slight movement of the mold during injection molding.

[0004] Therefore, this utility model proposes a positioning fixture for processing injection molds to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies and propose a positioning fixture for processing injection molds.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a positioning fixture for processing injection molds, comprising a support base, and further comprising:

[0007] A positioning assembly includes a first hydraulic push rod installed in a support base, the output end of the first hydraulic push rod being connected to a movable block, a first connecting block being connected to the movable block, a guide rod being connected to the support base, the first connecting block being slidably connected to the guide rod, and a positioning plate being connected to the movable block on the side near the top.

[0008] A clamping assembly includes a second support plate mounted on a support base, a second hydraulic push rod mounted on the top of the second support plate, a second connecting block connected to the output end of the second hydraulic push rod, a first rotating block rotatably connected to the bottom of the second connecting block, and a pressure block provided at the bottom of the first rotating block.

[0009] Furthermore, a first support plate is connected to the top of the support base.

[0010] The beneficial effect of adopting the above-mentioned further solution is that the first support plate at the top of the support base is used to place the injection mold, and the first support plate is connected to the support base by bolts to ensure the stability of the first support plate.

[0011] Furthermore, both the support base and the first support plate have limit grooves, and the moving block is slidably connected within the limit grooves.

[0012] The beneficial effect of adopting the above-mentioned further solution is that when the first hydraulic push rod drives the moving block, the moving block slides along the support base and the limiting groove on the first support plate, so that it moves along the preset path, avoids deflection, thereby ensuring the positional accuracy of the positioning plate and realizing the precise positioning of the mold.

[0013] Furthermore, a limiting rod is connected to the second connecting block, and the limiting rod is slidably connected inside the second support plate. A second rotating block is rotatably connected to the first rotating block.

[0014] The beneficial effects of adopting the above-mentioned further solution are as follows: the limiting rod is fixedly connected to the second connecting block and slides within the second support plate. When the second hydraulic push rod drives the second connecting block to move up and down, the limiting rod, under the guidance of the second support plate, prevents the second connecting block from tilting or shifting, ensuring that the pressure block presses down vertically and that the mold is subjected to uniform force. The rotational connection between the first rotating block and the second rotating block allows the pressure block to achieve angle adjustment. When the pressure block contacts the mold surface, if the mold has a slight tilt or irregular contour, the second rotating block can rotate around the first rotating block to adaptively adjust its posture, ensuring that the clamping force is evenly distributed and effectively preventing the mold from shifting during processing.

[0015] Furthermore, a third rotating block is rotatably connected to the side of the second rotating block near the bottom of the first rotating block.

[0016] The beneficial effect of adopting the above-mentioned further scheme is that the third rotating block is located on the side of the second rotating block that is close to the first rotating block. When the pressure block is subjected to uneven force, the third rotating block can rotate around the connection point to provide auxiliary support for the second rotating block and enhance the stability of the pressure block.

[0017] Furthermore, the pressure block is rotatably connected to the second rotating block on one side near the bottom.

[0018] The beneficial effects of adopting the above-mentioned further solution are: when the pressure block contacts the mold, the angle can be automatically adjusted according to the specific shape of the mold surface to achieve a fit, which not only improves the uniformity of the clamping force, but also reduces local stress concentration, protects the mold surface from damage, and ensures that the mold remains in a fixed position during the processing.

[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0020] In this invention, when the positioning fixture is activated, the first hydraulic push rod is activated, and its output end pushes the moving block to move within the support base. The moving block drives the first connecting block to slide along the guide rod to ensure smooth movement. At the same time, the positioning plate on the top of the moving block moves accordingly to initially position the mold on the first support plate. Subsequently, the second hydraulic push rod is activated, and its output end pushes the second connecting block downward. Since the bottom of the second connecting block is rotatably connected to the first rotating block and is equipped with a pressure block, when the pressure block contacts the mold surface, it can adaptively adjust the angle to fit the irregular contour of the mold. The hydraulic thrust achieves uniform pressing, ensuring stable mold positioning. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a positioning fixture for processing injection molds according to the present invention;

[0022] Figure 2 This is a schematic diagram of the positioning component structure of a positioning fixture for processing injection molds according to the present invention;

[0023] Figure 3 This is a cross-sectional view of the positioning component structure of a positioning fixture for processing injection molds according to this utility model;

[0024] Figure 4 This is a schematic diagram of the clamping assembly structure of a positioning fixture for processing injection molds according to the present invention;

[0025] Figure 5 This is a structurally disassembled schematic diagram of the clamping assembly of a positioning fixture for processing injection molds according to the present invention.

[0026] Figure label:

[0027] 1. Support base;

[0028] 2. Positioning assembly; 21. First hydraulic push rod; 22. Moving block; 23. First connecting block; 24. Guide rod; 25. Positioning plate; 26. First support plate; 27. Limiting groove;

[0029] 3. Clamping assembly; 31. Second support plate; 32. Second hydraulic push rod; 33. Second connecting block; 34. Limiting rod; 35. First rotating block; 36. Second rotating block; 37. Third rotating block; 38. Pressure block. Detailed Implementation

[0030] 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.

[0031] like Figures 1-5 As shown, this embodiment provides a technical solution: a positioning fixture for processing injection molds, including a support base 1, and further comprising:

[0032] Positioning component 2 includes a first hydraulic push rod 21 installed in the support base 1, the output end of the first hydraulic push rod 21 is connected to a moving block 22, a first connecting block 23 is connected to the moving block 22, a guide rod 24 is connected to the support base 1, the first connecting block 23 is slidably connected to the guide rod 24, and a positioning plate 25 is connected to the side of the moving block 22 near the top.

[0033] The clamping assembly 3 includes a second support plate 31 mounted on the support base 1. A second hydraulic push rod 32 is mounted on the top of the second support plate 31. The output end of the second hydraulic push rod 32 is connected to a second connecting block 33. A first rotating block 35 is rotatably connected to the bottom of the second connecting block 33. A pressure block 38 is provided at the bottom of the first rotating block 35. When the positioning fixture is activated, the first hydraulic push rod 21 is activated, and its output end pushes the moving block 22 to move within the support base 1. The moving block 22 drives the first connecting block 23 to slide along the guide rod 24 to ensure smooth movement. At the same time, the positioning plate 25 on the top of the moving block 22 moves accordingly to initially position the mold on the first support plate 26. Subsequently, the second hydraulic push rod 32 is activated, and its output end pushes the second connecting block 33 downward. Since the bottom of the second connecting block 33 is rotatably connected to the first rotating block 35 and is provided with a pressure block 38, when the pressure block 38 contacts the mold surface, it can adaptively adjust the angle to fit the irregular contour of the mold. Uniform clamping is achieved through hydraulic thrust to ensure stable mold positioning.

[0034] The above solutions also have the problem of not being able to ensure a uniform distribution of clamping force when positioning and clamping the injection mold, such as... Figures 1-4As shown: The top of the support base 1 is connected to a first support plate 26. The first support plate 26 on the top of the support base 1 is used to place the injection mold. The first support plate 26 is connected to the support base 1 by bolts to ensure the stability of the first support plate 26. Limiting grooves 27 are opened on both the support base 1 and the first support plate 26. The moving block 22 is slidably connected in the limiting groove 27. When the first hydraulic push rod 21 drives the moving block 22, the moving block 22 slides along the limiting groove 27 on the support base 1 and the first support plate 26, so that it moves along the preset path to avoid deflection, thereby ensuring the positional accuracy of the positioning plate 25 and realizing the precise positioning of the mold.

[0035] like Figure 1 as well as Figures 4-5 As shown, a limiting rod 34 is connected to the second connecting block 33, and the limiting rod 34 is slidably connected within the second support plate 31. A second rotating block 36 is rotatably connected to the first rotating block 35. The limiting rod 34 is fixedly connected to the second connecting block 33 and slides within the second support plate 31. When the second hydraulic push rod 32 drives the second connecting block 33 to move up and down, the limiting rod 34, guided by the second support plate 31, prevents the second connecting block 33 from tilting or shifting, ensuring that the pressure block 38 presses down vertically and that the mold is subjected to uniform force. The rotatable connection between the first rotating block 35 and the second rotating block 36 allows the pressure block 38 to be angled. When the pressure block 38 contacts the mold surface, if the mold has a slight tilt or irregular contour, the second rotating block 36 can rotate around the first rotating block 35 to adaptively adjust. The posture ensures a uniform distribution of clamping force, effectively preventing mold displacement during processing. A third rotating block 37 is rotatably connected to the second rotating block 36 near the bottom of the first rotating block 35. The third rotating block 37 is located on the side of the second rotating block 36 near the first rotating block 35. When the pressure block 38 is subjected to uneven force, the third rotating block 37 can rotate around the connection point to provide auxiliary support for the second rotating block 36, enhancing the stability of the pressure block 38. The pressure block 38 is rotatably connected to the side of the second rotating block 36 near the bottom. When the pressure block 38 contacts the mold, it can automatically adjust its angle according to the specific shape of the mold surface to achieve a close fit. This not only improves the uniformity of clamping force but also reduces local stress concentration, protects the mold surface from damage, and ensures that the mold remains in a fixed position during processing.

[0036] Working principle:

[0037] like Figures 1-5As shown, when the mold positioning and clamping mechanism is working, firstly, the first hydraulic push rod 21 is activated, and its output end pushes the moving block 22 to move within the support base 1. Under the constraint of the limiting groove 27, the moving block 22 slides smoothly along a preset path, simultaneously driving the first connecting block 23 to slide along the guide rod 24 to prevent deviation during movement. The positioning plate 25 on the top of the moving block 22 moves accordingly, gradually approaching the injection mold placed on the first support plate 26 to perform preliminary positioning of the mold. After the mold is initially positioned, the second hydraulic push rod 32 is activated, and its output end pushes the second connecting block 33 to move downward along the second support plate 31. The limiting rod 34 slides within the second support plate 31, serving as a guide to prevent the second connecting block 33 from tilting or deviating. Ensure that the pressure block 38 presses down vertically. Since the bottom of the second connecting block 33 is rotatably connected to the first rotating block 35, and the first rotating block 35 is rotatably connected to the second rotating block 36, the third rotating block 37, and the pressure block 38, when the pressure block 38 contacts the mold surface, if the mold has a slight tilt or irregular contour, each rotating block can rotate in coordination, so that the pressure block 38 can adaptively adjust its angle and fit tightly against the mold surface. Through hydraulic thrust, the pressure block 38 presses the mold evenly. Each rotating connection structure ensures that the clamping force is evenly distributed, effectively preventing the mold from shifting during processing, reducing local stress concentration, protecting the mold surface from damage, and ensuring that the mold maintains a fixed position throughout the entire processing, providing a stable and reliable foundation for subsequent processing.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A positioning fixture for processing injection molds, comprising a support base (1), characterized in that, Also includes: The positioning component (2) includes a first hydraulic push rod (21) installed in the support base (1), the output end of the first hydraulic push rod (21) is connected to a moving block (22), the moving block (22) is connected to a first connecting block (23), the support base (1) is connected to a guide rod (24), the first connecting block (23) is slidably connected to the guide rod (24), and a positioning plate (25) is connected to the side of the moving block (22) near the top. The clamping assembly (3) includes a second support plate (31) mounted on a support base (1), a second hydraulic push rod (32) mounted on the top of the second support plate (31), a second connecting block (33) connected to the output end of the second hydraulic push rod (32), a first rotating block (35) rotatably connected to the bottom of the second connecting block (33), and a pressure block (38) provided at the bottom of the first rotating block (35).

2. A positioning fixture for processing injection molds according to claim 1, characterized in that: The top of the support base (1) is connected to a first support plate (26).

3. A positioning fixture for processing injection molds according to claim 2, characterized in that: Both the support base (1) and the first support plate (26) have limit grooves (27), and the moving block (22) is slidably connected in the limit grooves (27).

4. A positioning fixture for processing injection molds according to claim 1, characterized in that: A limiting rod (34) is connected to the second connecting block (33), and the limiting rod (34) is slidably connected inside the second support plate (31). A second rotating block (36) is rotatably connected to the first rotating block (35).

5. A positioning fixture for processing injection molds according to claim 4, characterized in that: A third rotating block (37) is rotatably connected to the side of the second rotating block (36) near the bottom of the first rotating block (35).

6. A positioning fixture for processing injection molds according to claim 4, characterized in that: The pressure block (38) is rotatably connected to the second rotating block (36) on one side near the bottom.

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