A mold manufacturing positioning tool

Abstract

The utility model relates to a kind of mould manufacturing positioning tool, including substrate and at least four L type positioning blocks, the middle part of substrate is equipped with the processing hole for processing mould, the periphery of processing hole is provided with multiple mounting holes, the L type positioning block is arranged around the processing hole, and is connected with mounting hole by positioning screw respectively, the inner side of L type positioning block is equipped with at least one positioning slot towards the processing hole, one clamping block is provided in each positioning slot, the bottom surface of positioning slot is equipped with threaded hole, a character long hole that is communicated with the threaded hole is opened in the clamping block, an adjusting screw sequentially passes through the character long hole and is screwed into the threaded hole.The utility model is equipped with the substrate with processing hole and four adjustable L type positioning blocks, cooperate the clamping block in positioning slot, realize the quick, accurate positioning and firm clamping of rectangular mould.

Description

Technical Field

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

[0002] Molds are key equipment in industrial production used for mass-producing products, typically consisting of a moving mold and a fixed mold that work together. The manufacturing precision of the mold directly determines the quality and consistency of the final product. Most molds are formed through machining, with mechanical stamping dies being a typical example; their bodies are usually made of high-strength metal materials (such as die steel). During the mold manufacturing process, various complex cavities, holes, grooves, and other structures need to be milled or drilled into their surfaces or interiors.

[0003] To ensure that the machined molds meet design requirements and guarantee high dimensional consistency and stability within the same batch of products, the mold blanks must be precisely and reliably fixed before machining. Currently, general-purpose tooling fixtures, such as vises and clamping plate assemblies, are commonly used to accomplish this clamping task. However, existing general-purpose fixtures have significant limitations. Due to the lack of dedicated positioning references, manual alignment is required during clamping, resulting in poor positioning and repeatability accuracy, making it difficult to guarantee the relative positional consistency of structures such as holes and slots in batch processing. Secondly, frequent fixture adjustments are required for rectangular molds of different sizes, making the preparation process cumbersome and hindering processing efficiency. Utility Model Content

[0004] To address the problems existing in the background art, this utility model provides a positioning fixture that can quickly and stably clamp molds.

[0005] The technical solution is as follows: A mold manufacturing positioning fixture includes a base plate and at least four L-shaped positioning blocks. The base plate has a machining hole for machining the mold in the middle. Multiple mounting holes are provided around the machining hole. The L-shaped positioning blocks are arranged around the machining hole and are connected to the mounting holes by positioning screws. At least one positioning groove facing the machining hole is opened on the inner side of each L-shaped positioning block. A clamping block is provided in each positioning groove. A threaded hole is opened on the bottom surface of the positioning groove. A slotted hole communicating with the threaded hole is opened on the clamping block. An adjusting screw passes through the slotted hole and is screwed into the threaded hole.

[0006] As a further preferred embodiment, the clamping block is a rectangular block.

[0007] As a further preferred embodiment, the clamping block has an inverted L-shaped structure, including a vertical mounting part and a horizontal pressing part extending from the top of the vertical mounting part toward the workpiece; the vertical mounting part is disposed in the positioning groove and fixed by the adjusting screw; the horizontal pressing part is provided with a vertical clamping screw for pressing the mold from above.

[0008] As a further preferred embodiment, the plurality of mounting holes are arranged at equal intervals.

[0009] As a further preferred embodiment, at least two diagonally arranged L-shaped positioning blocks are provided with positioning grooves and clamping blocks on their two mutually perpendicular inner surfaces.

[0010] As a further preferred embodiment, the inner edge of the processing hole is provided with an inwardly extending horizontally overlapping piece, the upper end surface of the overlapping piece being flush with the upper end surface of the substrate.

[0011] As a further preferred embodiment, the substrate is provided with positioning posts around its perimeter for positioning with an external worktable.

[0012] Compared with the prior art, the present invention has the following advantages: 1. This utility model achieves rapid, accurate positioning and firm clamping of rectangular molds by setting a base plate with processing holes and four adjustable L-shaped positioning blocks, in conjunction with the clamping blocks in the positioning groove. It effectively solves the problems of insufficient positioning accuracy, poor clamping stability and low adaptability to molds of different sizes in the prior art, and significantly improves processing quality and efficiency.

[0013] 2. The clamping block of this utility model adopts a rectangular block structure, which is regular in shape, easy to process and manufacture, and low in cost. At the same time, it has a good force-bearing surface and can provide a stable and reliable clamping force for the mold workpiece.

[0014] In addition, an inverted L-shaped clamping block can be used, whose horizontal pressing part, together with the vertical clamping screw, can apply a vertical clamping force from above the workpiece, forming a compound clamping force with the lateral positioning force, which greatly enhances the clamping stability and rigidity and effectively suppresses processing vibration.

[0015] 3. By setting the mounting holes to be equally spaced, the mounting position of the L-shaped positioning block is regular and can be finely adjusted, which facilitates quick and accurate layout adjustment on the substrate and improves the convenience of tooling assembly and adjustment.

[0016] 4. This utility model uses diagonally arranged bidirectional positioning blocks to simultaneously limit and clamp the mold workpiece from two mutually perpendicular directions, effectively eliminating the potential degree of freedom of movement of the workpiece and ensuring the positional accuracy and repeatability of the workpiece during the processing.

[0017] 5. This utility model provides an additional support plane for the mold workpiece to be processed by setting an overlapping piece inside the processing hole, which increases the support rigidity of the middle part of the workpiece and prevents it from deforming or vibrating when subjected to processing force.

[0018] 6. This utility model provides positioning posts around the base plate, enabling the tooling to be quickly and accurately positioned and docked with the external worktable, achieving rapid installation and precise positioning of the tooling itself, and further improving the efficiency and accuracy of the entire processing system. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the L-shaped positioning block and clamping block of this utility model.

[0021] Figure 3 This is a schematic diagram of another structure of the clamping block of this utility model.

[0022] The meanings of the reference numerals in the figure are as follows: 1. Substrate; 11. Machining hole; 12. Mounting hole; 13. Overlap piece; 14. Positioning post; 2. L-shaped positioning block; 21. Positioning groove; 22. Threaded hole; 3. Clamping block; 31. Long slotted hole; 32. Vertical mounting part; 33. Horizontal pressing part; 4. Adjusting screw; 5. Clamping screw; 6. Positioning screw. Detailed Implementation

[0023] 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.

[0024] like Figure 1-3The mold manufacturing positioning fixture shown includes a base plate 1 and at least four L-shaped positioning blocks 2. A machining hole 11 for processing the mold is provided in the center of the base plate 1, providing ample operating space for mold processing. Multiple mounting holes 12 are provided around the machining hole 11 for flexible adjustment of the L-shaped positioning blocks 2. The L-shaped positioning blocks 2 are arranged around the machining hole 11 and connected to the mounting holes 12 via positioning screws 6, enabling rapid installation and positioning. At least one positioning groove 21 facing the machining hole 11 is provided on the inner side of each L-shaped positioning block 2. A clamping block 3 is provided in each positioning groove 21. A threaded hole 22 is provided on the bottom surface of the positioning groove 21. A slotted hole 31 communicating with the threaded hole 22 is provided on the clamping block 3. An adjusting screw 4 passes through the slotted hole 31 and screws into the threaded hole 22. Rotating the adjusting screw 4 tightens or loosens the clamping block 3, controlling its extension or retraction.

[0025] refer to Figure 2 In one specific embodiment, a rectangular machining hole 11 is formed in the middle of the substrate 1, and positioning posts 14 are provided at the four corners of the bottom for positioning with an external worktable, ensuring accurate positioning of the entire tooling. The inner edge of the machining hole 11 has an inwardly extending horizontally extending overlapping piece 13, the upper surface of which is flush with the upper surface of the substrate 1, providing stable auxiliary support for the mold workpiece. Each of the four corners of the rectangular machining hole 11 has multiple equally spaced mounting holes 12, facilitating the regular arrangement of L-shaped positioning blocks. An L-shaped positioning block 2 is installed at each of the four corners, making it particularly suitable for rectangular mold blanks. The four L-shaped positioning blocks 2 allow for precise positioning and reliable clamping at the four corners of the mold. A clamping block 3 is installed in the positioning groove 21, and the clamping block 3 can move horizontally along the positioning groove 21. An adjusting screw 4, passing through a slotted hole 31 and a threaded hole 22, is used to lock the clamping block 3 and precisely control its position. In this embodiment, the clamping block 3 is a rectangular block, simple in structure and easy to manufacture, allowing for stable clamping from the side of the mold. refer to Figure 3 In a preferred embodiment, the clamping block 3 may also be an inverted L-shaped structure, which includes a vertical mounting part 32 and a horizontal pressing part 33 extending from the top of the vertical mounting part 32 toward the workpiece. The vertical mounting part 32 is disposed in the positioning groove 21 and fixed by the adjusting screw 4. The horizontal pressing part 33 is provided with a vertical clamping screw 5, which can be adjusted in the vertical direction to press it from the mold surface, thereby achieving a multi-directional composite clamping effect.

[0026] refer to Figure 1 In one specific embodiment, there are at least two diagonally arranged L-shaped positioning blocks 2, each with a positioning groove 21 and a clamping block 3 on its two mutually perpendicular inner surfaces, forming a bidirectional positioning structure. This effectively eliminates the potential degrees of freedom of movement of the workpiece and ensures the positional accuracy and repeatability of the workpiece during the processing.

[0027] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the inventive concept, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A positioning fixture for mold manufacturing, characterized in that: The system includes a base plate (1) and at least four L-shaped positioning blocks (2). The base plate (1) has a machining hole (11) for machining a mold in the middle. Multiple mounting holes (12) are provided around the machining hole (11). The L-shaped positioning blocks (2) are arranged around the machining hole (11) and are connected to the mounting holes (12) by positioning screws (6). The inner side of the L-shaped positioning block (2) has at least one positioning groove (21) facing the machining hole (11). Each positioning groove (21) is provided with a clamping block (3). The bottom surface of the positioning groove (21) has a threaded hole (22). The clamping block (3) has a slotted hole (31) communicating with the threaded hole (22). An adjusting screw (4) passes through the slotted hole (31) and screws into the threaded hole (22).

2. The mold manufacturing positioning fixture according to claim 1, characterized in that: The clamping block (3) is a rectangular block.

3. The mold manufacturing positioning fixture according to claim 1, characterized in that: The clamping block (3) has an inverted L-shaped structure, including a vertical mounting part (32) and a horizontal pressing part (33) extending from the top of the vertical mounting part (32) toward the workpiece; the vertical mounting part (32) is located in the positioning groove (21) and fixed by the adjusting screw (4); the horizontal pressing part (33) is provided with a vertical clamping screw (5) for clamping the mold from above.

4. The mold manufacturing positioning fixture according to claim 1, characterized in that: The mounting holes (12) are arranged at equal intervals.

5. The mold manufacturing positioning fixture according to claim 1, characterized in that: At least two L-shaped positioning blocks (2) are arranged diagonally, and each of their two mutually perpendicular inner surfaces is provided with a positioning groove (21) and a clamping block (3).

6. The mold manufacturing positioning fixture according to claim 1, characterized in that: The inner edge of the processing hole (11) is provided with an inwardly horizontally extending overlapping piece (13), the upper end face of the overlapping piece (13) is flush with the upper end face of the substrate (1).

7. The mold manufacturing positioning fixture according to claim 1, characterized in that: The base plate (1) is provided with positioning posts (14) around its perimeter for positioning with an external worktable.

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