High-strength aluminum alloy frame hot press forming die

Abstract

The application relates to the technical field of battery tray processing, and discloses a high-strength aluminum alloy frame hot-press forming die, which is used for heat preservation correction of a die-cast frame and comprises a base plate, an external limiting frame arranged on the base plate, an internal corner type limiting piece slidingly installed on the base plate, the internal corner type limiting piece being provided with a first station and a second station, and a moving mechanism arranged on the base plate and used for driving the internal corner type limiting piece to shift between the first station and the second station; when the internal corner type limiting piece is located at the first station, an internal corner of the internal corner type limiting piece and an internal corner of the external limiting frame form a limiting groove used for limiting a corner of the frame; and when the internal corner type limiting piece is located at the second station, the distance between the internal corner type limiting piece and the external limiting frame is greater than the thickness of the frame. In the application, the internal corner type limiting piece is used for moving and extruding the corner of the frame so that the outer side of the frame abuts against the external limiting frame, and the frame is corrected.

Description

Technical Field

[0001] This invention relates to the field of battery tray forming equipment technology, and in particular to a high-strength aluminum alloy frame hot pressing forming mold. Background Technology

[0002] The battery tray is a structure used in new energy vehicles to house lithium batteries, generally consisting of a base plate and a frame. Existing frames are manufactured by die casting (e.g., the forming method of the first side beam disclosed in application number 202411224398.7), but the yield rate is relatively low. Due to the principle of thermal expansion and contraction, they are prone to deformation, with the most severe deformation typically occurring at the corners of the frame where they shrink inwards. Another method involves welding the segmented frame structure together, but this process is complex, inefficient, and results in poor sealing. Summary of the Invention

[0003] To address the technical problems existing in the background art, the present invention proposes a high-strength aluminum alloy frame hot pressing forming mold.

[0004] This invention proposes a high-strength aluminum alloy frame hot pressing forming mold for heat preservation and correction of die-cast frames. It includes a base plate, an external limiting frame on the base plate, and an inner corner limiting member slidably mounted on the base plate. The inner corner limiting member has a first station and a second station. The base plate is also provided with a moving mechanism for driving the inner corner limiting member to switch between the first station and the second station.

[0005] When the inner corner limiting member is in the first working position, the inner corner limiting member and one inner corner of the outer limiting frame form a limiting groove for limiting the corner of the frame.

[0006] When the inner corner limiting member is in the second working position, the distance between the inner corner limiting member and the outer limiting frame is greater than the thickness of the frame to facilitate the feeding and picking of the frame.

[0007] During the operation, the mold is placed in a high-temperature environment such as a high-temperature chamber, with the inner corner limiting component in the second position. Then, the frame is placed between the inner corner limiting component and the outer limiting frame. The moving mechanism then moves the inner corner limiting component until it reaches the first position, where the outer limiting frame and the inner corner limiting component clamp the frame. In this high-temperature environment, the temperature is between 200℃ and 350℃. After the inner corner limiting component has moved to the first position for 10 to 50 minutes, the temperature in the high-temperature chamber is slowly reduced until room temperature.

[0008] Preferably, the outer limiting frame is made of porous mold steel, and the high-temperature gas is adsorbed by the porous structure of the outer limiting frame and the frame between the outer limiting frame and the inner corner limiting member.

[0009] Preferably, the substrate has a sliding groove, the inner corner limiting member is slidably installed in the sliding groove, and the sliding groove has a limiting surface for limiting the movement of the inner corner limiting member.

[0010] Preferably, a through hole is formed in the middle of the substrate.

[0011] Preferably, the moving mechanism is a high-temperature resistant cylinder.

[0012] Preferably, the inner angle limiting member is equipped with a limiting extension, and a limiting structure for limiting the linear movement of the inner angle limiting member is provided between the cylinder barrel of the high-temperature resistant cylinder and the limiting extension.

[0013] Preferably, the limiting structure includes a groove formed on the limiting extension and a protrusion provided on the cylinder of the high-temperature resistant cylinder. When the inner angle limiting member moves relative to the base plate, the protrusion slides in the groove.

[0014] Preferably, a cover plate is pressed onto the outer limiting frame, and the cover plate is used to limit the height of the frame.

[0015] Preferably, multiple sets of the inner corner limiting member and the moving mechanism are provided. One moving mechanism drives one inner corner limiting member to move, and one inner corner limiting member is opposite to the corner of a frame. When the inner corner limiting member is in the first working position, a gap is formed between any two adjacent inner corner limiting members. The substrate is provided with a side abutting part by a telescopic member. The telescopic member drives the side abutting part to abut against the side opposite to the frame and the gap.

[0016] Preferably, the width of the interval gradually increases from the side closer to the outer defining frame to the side farther away from the outer defining frame, and the side abutment portion matches the interval.

[0017] The high-strength aluminum alloy frame hot pressing forming mold proposed in this invention has a simple structure. By moving the corner of the frame through the inner corner limiting member, the outer side of the frame is pressed against the outer limiting frame, thereby correcting the frame. This can correct the frame structure that has undergone shrinkage deformation, thereby improving the yield.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a top view of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure after the cover plate is placed in some embodiments of the present invention;

[0022] Figure 4 This is a partial enlarged view of the limiting structure in some embodiments of the present invention;

[0023] Figure 5 This is a schematic diagram of a further optimized scheme in some embodiments of the present invention;

[0024] In the figure: 1. Substrate; 100. Through hole; 2. Inner corner limiting member; 3. Outer limiting frame; 4. Moving mechanism; 5. Cover plate; 6. Limiting extension; 60. Slide groove; 7. Protrusion; 8. Telescopic member; 9. Side abutment; 10. Spacing. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] like Figure 1 - Figure 2 The high-strength aluminum alloy frame hot pressing forming mold shown is used for heat preservation and straightening of die-cast frames. It includes a base plate 1, which is made of high-temperature resistant material. An outer limiting frame 3 is provided on the base plate 1, which is also made of high-temperature resistant material. An inner corner limiting member 2 is slidably installed on the base plate 1. The inner corner limiting member 2 is also made of high-temperature resistant material. The inner corner limiting member 2 has a first station and a second station. A moving mechanism 4 is also provided on the base plate 1. The moving mechanism 4 is used to drive the inner corner limiting member 2 to switch between the first station and the second station. The moving mechanism 4 is a high-temperature resistant cylinder. The cylinder is installed on the base plate 1 and located inside the outer limiting frame 3. The inner corner limiting member 2 is installed on the piston of the cylinder by screws.

[0027] When the inner corner limiting member 2 is in the first working position, the inner corner limiting member 2 and one inner corner of the outer limiting frame 3 form a limiting groove for limiting the corner of the frame.

[0028] When the inner corner limiting member 2 is in the second station, the distance between the inner corner limiting member 2 and the outer limiting frame is greater than the thickness of the frame to facilitate the feeding and picking of the frame.

[0029] Preferably, there are four sets of inner corner limiting members 2 and moving mechanisms 4. One moving mechanism 4 drives one inner corner limiting member 2 to move, and one inner corner limiting member 2 is opposite to the corner of a frame. The four moving mechanisms 4 simultaneously drive the four inner corner limiting members 2 to move to the first station or the second station, which increases the processing efficiency and the yield rate.

[0030] like Figure 3 In some of the embodiments shown, preferably, a cover plate 5 is pressed on the outer limiting frame 3. The cover plate 5 is used to limit the height of the frame. The cover plate can be installed on the high temperature chamber or the base plate 1 by a cylinder. The cylinder drives the cover plate to move up and down to press the outer limiting frame 3, which further increases the stability of the outer limiting frame 3 and limits the frame.

[0031] The mold is placed in a high-temperature environment, such as a high-temperature chamber. Specifically, a high-temperature environment can be created by continuously introducing high-temperature gas into the high-temperature chamber. The specific steps in the process are as follows:

[0032] Material feeding: Open the high temperature chamber. At this time, no high temperature gas is introduced into it. The inner corner limiting part 2 is in the second working position. Then, the frame is placed between the inner corner limiting part 2 and the outer limiting frame 3.

[0033] After closing the high-temperature chamber, high-temperature gas is introduced into the high-temperature chamber to balance the ambient temperature. The temperature in the high-temperature chamber is then maintained at around 260°C. Then, the moving mechanism 4 is activated, which moves the inner corner limiting member 2 to the first station, causing the outer limiting frame 3 and the inner corner limiting member 2 to clamp the frame. After the inner corner limiting member 2 moves to the first station, the high temperature inside the high-temperature chamber is maintained for 10-50 minutes.

[0034] Cooling process: Stop introducing high-temperature gas into the high-temperature chamber until it reaches room temperature, and then move the inner corner limiter 2 to the second station through the moving mechanism 4 to remove the frame.

[0035] Preferably, the outer limiting frame 3 is made of porous mold steel. High-temperature gas is adsorbed by the porous structure of the outer limiting frame 3 and the inner corner limiting member 2 through the existing negative pressure equipment, which further increases the molding efficiency and the correction effect on the frame.

[0036] like Figure 3 As shown, preferably, a sliding groove is formed on the substrate 1, the inner corner limiting member 2 is slidably installed in the sliding groove, and the sliding groove has a limiting surface for limiting the movement of the inner corner limiting member 2.

[0037] Preferably, a through hole 100 is provided in the middle of the substrate 1 to facilitate the arrangement and placement of the pipeline connected to the cylinder.

[0038] like Figure 4 As shown, in order to further ensure the linear movement of the inner angle limiting member 2, the inner angle limiting member 2 is equipped with a limiting extension 6, and a limiting structure for limiting the linear movement of the inner angle limiting member 2 is provided between the cylinder of the high temperature resistant cylinder and the limiting extension 6; the limiting structure includes a sliding groove 60 formed on the limiting extension 6 and a protrusion 7 provided on the cylinder of the high temperature resistant cylinder. When the inner angle limiting member 2 moves relative to the base plate 1, the protrusion 7 slides in the sliding groove 60.

[0039] like Figure 5 As shown, in some embodiments, preferably, when the inner corner limiting member 2 is in the first working position, a gap 10 is formed between any two adjacent inner corner limiting members 2. The substrate 1 is provided with a side abutment 9 by means of a telescopic member 8. The telescopic member 8 is also a cylinder. The telescopic member 8 drives the side abutment 9 to abut the side opposite to the frame and the gap 10. The telescopic member 8 and the moving mechanism 4 operate synchronously. When the inner corner limiting member 2 moves to the first working position, the side abutment 9 and the outer limiting frame 3 clamp the frame, thereby realizing the all-round clamping and correction of the frame.

[0040] Preferably, the width of the interval 10 gradually increases from the side closer to the outer defining frame 3 to the side farther away from the outer defining frame 3, and the side abutment 9 matches the interval 10. This further increases the correction accuracy.

[0041] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention 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. Therefore, they should not be construed as limitations on the present invention.

[0042] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-strength aluminum alloy frame hot pressing forming mold, characterized in that, The device is used for heat preservation and straightening of the die-cast frame, including a base plate (1), an outer limiting frame (3) on the base plate (1), an inner corner limiting member (2) slidably mounted on the base plate (1), the inner corner limiting member (2) having a first station and a second station, and a moving mechanism (4) on the base plate (1), the moving mechanism (4) being used to drive the inner corner limiting member (2) to switch between the first station and the second station; When the inner corner type limiting member (2) is in the first working position, the inner corner type limiting member (2) and one inner corner of the outer limiting frame (3) form a limiting groove for limiting the corner of the frame; When the inner corner limiting member (2) is in the second working position, the distance between the inner corner limiting member (2) and the outer limiting frame (3) is greater than the thickness of the frame to facilitate the feeding and picking of the frame.

2. The high-strength aluminum alloy frame hot pressing forming mold according to claim 1, characterized in that, The outer limiting frame (3) is made of porous mold steel material. High-temperature gas is adsorbed by the porous structure of the outer limiting frame (3) and the inner corner limiting member (2) between the outer limiting frame (3) and the inner corner limiting member (2).

3. The high-strength aluminum alloy frame hot pressing forming mold according to claim 1, characterized in that, The substrate (1) has a sliding groove, the inner corner limiting member (2) is slidably installed in the sliding groove, and the sliding groove has a limiting surface for limiting the movement of the inner corner limiting member (2).

4. The high-strength aluminum alloy frame hot pressing forming mold according to claim 1, characterized in that, The substrate (1) has a through hole (100) in the middle.

5. The high-strength aluminum alloy frame hot pressing forming mold according to claim 1, characterized in that, The moving mechanism (4) is a high-temperature resistant cylinder.

6. The high-strength aluminum alloy frame hot pressing forming mold according to claim 5, characterized in that, The inner angle type limiting member (2) is equipped with a limiting extension (6), and a limiting structure for limiting the linear movement of the inner angle type limiting member (2) is provided between the cylinder of the high temperature resistant cylinder and the limiting extension (6).

7. The high-strength aluminum alloy frame hot pressing forming mold according to claim 6, characterized in that, The limiting structure includes a groove (60) formed on the limiting extension (6) and a protrusion (7) provided on the cylinder of the high-temperature resistant cylinder. When the inner angle limiting member (2) moves relative to the base plate (1), the protrusion (7) slides in the groove (60).

8. The high-strength aluminum alloy frame hot pressing forming mold according to claim 1, characterized in that, A cover plate (5) is pressed on the outer limiting frame (3), and the cover plate (5) is used to limit the height of the frame.

9. The high-strength aluminum alloy frame hot pressing forming mold according to any one of claims 1-8, characterized in that, Multiple sets of the inner corner limiting member (2) and the moving mechanism (4) are provided. One moving mechanism (4) drives one inner corner limiting member (2) to move. One inner corner limiting member (2) is opposite to the corner of a frame. When the inner corner limiting member (2) is in the first working position, a gap (10) is formed between any two adjacent inner corner limiting members (2). The substrate (1) is provided with a side abutting part (9) by means of a telescopic member (8). The telescopic member (8) drives the side abutting part (9) to abut against the side opposite to the frame and the gap (10).

10. The high-strength aluminum alloy frame hot pressing forming mold according to claim 9, characterized in that, The width of the interval (10) gradually increases from the side closer to the outer limiting frame (3) to the side farther away from the outer limiting frame (3), and the side abutment (9) matches the interval (10).

Images