Replaceable assembly structure of a metal mold

Abstract

The utility model relates to metal mould manufacturing technical field discloses an easily replaceable assembly structure of metal mould, include: metal mould body, both ends of metal mould body all are provided with rectangular plate, the rectangular plate with preset guide rail in machine tool fixture slide connection, to realize the quick positioning and installation of metal mould body in machine tool fixture, the machine tool fixture includes the fixed mould fixture and the movable mould fixture who sets up oppositely, the opposite surface of fixed mould fixture and movable mould fixture is provided with two L type fixed plates respectively, the short side of two L type fixed plates is opposite arrangement, forms the guide rail of rectangular plate both sides, be provided with positioning device on L type fixed plate. Compared with prior art, the utility model can realize the quick centering and preliminary positioning of mould, greatly shorten the die changing time, provide multiple protection, avoid the risk of mould displacement or even loosening when bearing the big die force or impact vibration.

Description

Technical Field

[0001] This utility model relates to the field of metal mold manufacturing technology, specifically to an easy-to-replace assembly structure for metal molds. Background Technology

[0002] In the blank production process of metal castings (such as valve bodies, valve covers, and other complex structural parts), metal molds (such as metal mold frames for sand castings, die casting molds, etc.) need to be precisely and securely installed on the forming machine. For valve castings, due to the large number of product models and complex structures, molds need to be changed frequently during production to adapt to different product specifications.

[0003] Traditional mold installation methods typically involve directly fastening multiple bolts to the machine tool fixture. Each mold change requires tightening or loosening a large number of bolts, which is cumbersome and time-consuming. For large metal molds that require preheating, operation in high-temperature environments is even more difficult, seriously affecting the production efficiency of multi-variety, small-batch valve castings. Some mold installations use magnetic adsorption fixation, which increases the mold change speed, but the holding force it provides is limited. When subjected to large mold closing forces or impact vibrations, there is a risk of mold displacement or even loosening, resulting in insufficient stability. Utility Model Content

[0004] (I) Technical Issues

[0005] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide an easy-to-change assembly structure for metal molds, which can realize the rapid centering and preliminary positioning of the mold, greatly shorten the mold change time, provide multiple protections, and avoid the risk of mold displacement or even loosening when subjected to large mold closing forces or impact vibrations.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0008] An easy-to-replace assembly structure for a metal mold includes a metal mold body, with rectangular plates at both ends of the metal mold body. The rectangular plates are slidably connected to an internally preset guide rail to achieve rapid positioning and installation of the metal mold body in a machine tool fixture.

[0009] The machine tool fixture includes a fixed mold fixture and a moving mold fixture arranged opposite to each other. Two L-shaped fixing plates are symmetrically arranged on the opposite surfaces of the fixed mold fixture and the moving mold fixture. The short sides of the two L-shaped fixing plates are arranged opposite to each other to form the guide rails on both sides of the rectangular plate. A positioning device is provided on the L-shaped fixing plates.

[0010] As an improvement, the positioning device consists of two rectangular blocks, which are located on both sides of the short side of the L-shaped fixing plate and are fastened together by bolts passing through them.

[0011] As an improvement, several anti-slip grooves are provided on the opposite surfaces of the two rectangular blocks near the L-shaped fixing plate.

[0012] As an improvement, rectangular hydraulic cylinders are symmetrically arranged on both the fixed mold fixture and the moving mold fixture. The long side of the L-shaped fixing plate is slidably disposed in the internal cavity of the rectangular hydraulic cylinder. A hydraulic pump is disposed on the fixed surface of the fixed mold fixture. The hydraulic pump is connected to the rectangular hydraulic cylinder through a hydraulic pipeline and is used to drive the L-shaped fixing plate to clamp and release the rectangular plate.

[0013] As an improvement, a scale is provided on the short side of the L-shaped fixing plate along its length to accurately move the positioning device to the designated position, thereby ensuring the position of the metal mold body on the fixture.

[0014] As an improvement, magnets are embedded on the opposite side of the fixed mold fixture and the moving mold fixture, located between the two L-shaped fixing plates.

[0015] (III) Technical Effects

[0016] The advantages of this utility model compared with the prior art are as follows:

[0017] 1. This utility model achieves rapid centering and initial positioning of the mold by sliding the rectangular plates set at both ends of the mold body with the L-shaped fixing plates on the machine tool fixture, and in conjunction with magnets. This replaces the traditional bolt alignment process and enables rapid mold installation, greatly shortening the mold change time.

[0018] 2. This utility model adopts a hydraulically driven clamping method, combined with a positioning device, which provides multiple guarantees, making the mold stable and reliable during processing and avoiding the risk of mold displacement or even loosening when subjected to large clamping forces or impact vibrations. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0021] Figure 3 This is a partial structural schematic diagram of the present invention.

[0022] Figure 4 This is a schematic diagram of the positioning device of this utility model.

[0023] As shown in the figure: 1. Metal mold body; 2. Rectangular plate; 3. Fixed mold fixture; 4. Moving mold fixture; 6. L-shaped fixing plate; 7. Positioning device; 8. Rectangular block; 9. Bolt; 10. Anti-slip groove; 11. Rectangular hydraulic cylinder; 12. Hydraulic pump. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] An easily replaceable assembly structure for a metal mold, such as Figure 1 , 2 As shown, it includes:

[0027] The metal mold body 1 has rectangular plates 2 at both ends. The rectangular plates 2 are slidably connected to the pre-set guide rails inside to achieve rapid positioning and installation of the metal mold body 1 in the machine tool fixture.

[0028] like Figure 1 , 3As shown, the machine tool fixture includes a fixed mold fixture 3 and a moving mold fixture 4 arranged opposite to each other. Magnets are embedded on opposite sides of both the fixed mold fixture 3 and the moving mold fixture 4, located between two L-shaped fixing plates 6. These embedded magnets provide additional attraction force to assist in fixing the mold body and achieving initial positioning of the metal mold body 1. Two L-shaped fixing plates 6 are symmetrically arranged on opposite sides of the fixed mold fixture 3 and the moving mold fixture 4. The short sides of the two L-shaped fixing plates 6 are arranged opposite each other, forming guide rails on both sides of the rectangular plate 2. Rectangular hydraulic cylinders 11 are symmetrically arranged on both the mold clamp 3 and the moving mold clamp 4. The long side of the L-shaped fixed plate 6 is slidably disposed in the internal cavity of the rectangular hydraulic cylinder 11. A hydraulic pump 12 is disposed on the fixed surface of the fixed mold clamp 3. The hydraulic pump 12 is connected to the rectangular hydraulic cylinder 11 through a hydraulic pipeline and is used to drive the L-shaped fixed plate 6 to clamp and release the rectangular plate 2. The use of hydraulic devices reduces the intensity of manual operation, improves the efficiency and automation level of mold replacement, and provides a stable clamping force to ensure the reliability of the processing.

[0029] like Figure 3 , 4 As shown, a positioning device 7 is provided on the L-shaped fixing plate 6. The positioning device 7 consists of two rectangular blocks 8, which are located on both sides of the short side of the L-shaped fixing plate 6 and are fastened together by bolts 9 passing through them. This fastening method using two rectangular blocks 8 and bolts 9 provides a uniform and adjustable clamping force, enhancing the reliability and stability of positioning. It also features a simple structure, facilitating maintenance and adjustment. A scale is provided along the length of the short side of the L-shaped fixing plate 6 for precisely moving the positioning device 7 to a designated position, thereby ensuring the position of the metal mold body 1 on the fixture. Several anti-slip grooves 10 are provided on the opposite surfaces of the two rectangular blocks 8 near one end of the L-shaped fixing plate 6. These anti-slip grooves 10 increase the friction between the rectangular blocks 8 and the L-shaped fixing plate 6, effectively preventing the mold from sliding or shifting during processing, further improving clamping safety and processing accuracy.

[0030] In the specific implementation of this embodiment:

[0031] When installing the mold, the operator first starts the hydraulic pump 12 to retract the L-shaped fixing plate 6 to make room for installation. Then, according to the required mold size, the operator adjusts the positioning device 7 to the corresponding position by referring to the scale on the short side of the L-shaped fixing plate 6. The rectangular plates 2 at both ends of the metal template body 1 are aligned with the guide rail formed by the short side of the L-shaped fixing plate 6 and pushed in until the lower end of the rectangular plate 2 contacts the positioning device 7. At this time, the magnets embedded in the fixed mold fixture 3 and the moving mold fixture 4 will attract the rectangular plate 2, achieving rapid pre-positioning. Then, the hydraulic pump 12 is started to drive the L-shaped fixing plate 6 to move to both sides, thereby clamping the metal mold body 1 on the machine tool, completing the rapid, accurate installation and reliable locking of the mold.

[0032] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An easily replaceable assembly structure for a metal mold, comprising a metal mold body (1), characterized in that: Both ends of the metal mold body (1) are provided with rectangular plates (2), and the rectangular plates (2) are slidably connected to the guide rails preset in the machine tool fixture to realize the rapid positioning and installation of the metal mold body (1) in the machine tool fixture; The machine tool fixture includes a fixed mold fixture (3) and a moving mold fixture (4) arranged opposite to each other. The fixed mold fixture (3) and the moving mold fixture (4) are respectively symmetrically provided with two L-shaped fixing plates (6). The short sides of the two L-shaped fixing plates (6) are arranged opposite to each other to form the guide rails on both sides of the rectangular plate (2). A positioning device (7) is provided on the L-shaped fixing plate (6).

2. The easily replaceable assembly structure of a metal mold according to claim 1, characterized in that: The positioning device (7) consists of two rectangular blocks (8), which are located on both sides of the short side of the L-shaped fixing plate (6) and are fastened together by bolts (9) that pass through them.

3. The easily replaceable assembly structure of a metal mold according to claim 2, characterized in that: Several anti-slip grooves (10) are provided on the opposite surfaces of the two rectangular blocks (8) near the L-shaped fixing plate (6).

4. The easily replaceable assembly structure of a metal mold according to claim 1, characterized in that: Rectangular hydraulic cylinders (11) are symmetrically arranged on both the fixed mold fixture (3) and the moving mold fixture (4). The long side of the L-shaped fixing plate (6) is slidably disposed in the internal cavity of the rectangular hydraulic cylinder (11). A hydraulic pump (12) is disposed on the fixed surface of the fixed mold fixture (3). The hydraulic pump (12) is connected to the rectangular hydraulic cylinder (11) through a hydraulic pipeline and is used to drive the L-shaped fixing plate (6) to clamp and release the rectangular plate (2).

5. The easily replaceable assembly structure of a metal mold according to claim 2, characterized in that: The L-shaped fixing plate (6) has a scale along its length on its short side, which is used to precisely move the positioning device (7) to the designated position, thereby ensuring the position of the metal mold body (1) on the fixture.

6. The easily replaceable assembly structure of a metal mold according to claim 1, characterized in that: Magnets are embedded on one side of the fixed mold fixture (3) and the moving mold fixture (4) and between the two L-shaped fixing plates (6).

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