Self-heating aluminum magnesium alloy double-station die

Abstract

The utility model relates to the technical field of aluminum magnesium alloy machining dies, in particular to a self-heating aluminum magnesium alloy double-station die which comprises an upper die body and a lower die body, the upper die body comprises a top plate, a double-station male die body and a driving mechanism, and the double-station male die body is slidably connected to the bottom of the top plate; the driving mechanism is connected with the double-station male die and used for driving the double-station male die to slide, the lower die comprises a female die, a plurality of fixing seats, a plurality of ejector rods and a plurality of heating pieces, the fixing seats are detachably connected in sequence, the female die is detachably connected to the tops of the fixing seats, the ejector rods are fixed to the bottom of the female die, and the heating pieces are arranged on the fixing seats. The multiple heating pieces are installed on the outer side of the female die, the female die is heated, so that the aluminum magnesium alloy is deformed and formed in a warm state, it is guaranteed that the aluminum magnesium alloy has proper fluidity and high forming precision in the deformation process, and the problems that in the extrusion process of the aluminum magnesium alloy, the extrusion speed is low, and the deformation resistance is large are solved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum-magnesium alloy processing mold technology, specifically a self-heating aluminum-magnesium alloy dual-station mold. Background Technology

[0002] Magnesium-aluminum alloys are characterized by low density, high strength, high rigidity, and poor formability, and are mainly used in aerospace, transportation, chemical, and rocket industries. Magnesium alloys have poor plasticity and are suitable for extrusion forming, typically warm extrusion and hot extrusion, with extrusion temperatures usually ranging from 300 to 450°C. Magnesium alloy extrusion offers several advantages: it can refine grain size, improve strength by retaining the extruded fiber texture, and achieve excellent surface quality and good dimensional accuracy. Currently, magnesium alloy rod products are mainly produced through extrusion forming. However, magnesium alloy extrusion also has disadvantages such as slow extrusion speed, high deformation resistance, and anisotropy in the material's mechanical properties due to the formation of texture after extrusion. Utility Model Content

[0003] The present invention aims to provide a self-heating dual-station mold for aluminum-magnesium alloys to solve the problems of slow extrusion speed and high deformation resistance in aluminum-magnesium alloy extrusion.

[0004] To achieve the above objectives, the basic solution of this utility model is as follows: A self-heating aluminum-magnesium alloy dual-station mold includes an upper mold and a lower mold. The upper mold includes a top plate, a dual-station punch, and a driving mechanism. The dual-station punch is slidably connected to the bottom of the top plate. The driving mechanism is connected to the dual-station punch to drive the dual-station punch to slide. The lower mold includes a cavity, several fixed seats, several ejector rods, and several heating elements. The several fixed seats are detachably connected in sequence. The cavity is detachably connected to the top of the fixed seats. The several ejector rods are fixed to the bottom of the cavity. The several heating elements are installed on the outside of the cavity.

[0005] Furthermore, the driving mechanism is a cylinder, which is installed at the bottom of the top plate, and the dual-station punch is connected to the output shaft of the cylinder.

[0006] Furthermore, the ejector pins include a number of primary ejector pins, a number of secondary ejector pins, and a number of tertiary ejector pins. The tertiary ejector pins are installed at the bottom of the fixed base, the secondary ejector pins are installed on the tertiary ejector pins, and the primary ejector pins are respectively installed on the secondary ejector pins. The top of the primary ejector pins is located at the bottom of the die cavity, and the fixed base is provided with through holes for the movement of the ejector pins.

[0007] Furthermore, the cavity includes a side wall and a bottom mold, the bottom mold is detachably connected to the lower end of the side wall, and the bottom mold is provided with several through holes for accommodating the first-stage ejector pin.

[0008] Furthermore, the heating element is a heating tube.

[0009] The operation process of this solution is as follows: turn on the heating tube to heat the groove to 450℃, put the bar stock heated to 400-450℃ into the die cavity, the first station of the dual-station punch first extrudes the bar stock into the die cavity, and then switches to the second station. The second station punch finally shapes the workpiece, and the multi-stage ejector pin ejects the workpiece and takes out the shaped workpiece. Aluminum-magnesium alloys are more likely to undergo severe plastic deformation at warm conditions. Heating the mold to 250℃ keeps the part at a warm condition for forming, which improves the forming performance of aluminum-magnesium alloys.

[0010] The beneficial effects of this solution are: (1) By heating the die, the aluminum-magnesium alloy is deformed and formed at a warm state, so as to ensure that the aluminum-magnesium alloy has suitable fluidity during the deformation process and high forming accuracy, thus solving the problems of slow extrusion speed and large deformation resistance in the extrusion process of aluminum-magnesium alloy.

[0011] (2) In this case, the upper mold adopts a dual-station punch, and the station is automatically switched through the drive mechanism to improve production efficiency.

[0012] (3) The ejector rod is designed as a three-stage ejector rod to eject the workpiece in stages, and several first-stage ejector rods that are in contact with the workpiece eject simultaneously to ensure the stability of the ejection of the workpiece and prevent deformation.

[0013] (4) The fixed seat and the die are separated and detachable, which makes it easy to install the ejector pin. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Detailed Implementation

[0015] 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.

[0016] The reference numerals in the accompanying drawings include: top plate 1, double-station punch 2, drive mechanism 3, fixed base 4, heating element 5, side wall 6, bottom mold 7, first-stage ejector pin 8, second-stage ejector pin 9, and third-stage ejector pin 10.

[0017] Example

[0018] The basics are as follows: Figure 1As shown: A self-heating aluminum-magnesium alloy dual-station mold includes an upper mold and a lower mold. The upper mold includes a top plate 1, a dual-station punch 2, and a drive mechanism 3. The dual-station punch 2 is slidably connected to the bottom of the top plate 1. The drive mechanism 3 is a cylinder installed at the bottom of the top plate 1, and the dual-station punch 2 is connected to the output shaft of the cylinder. The lower mold includes a cavity, four fixed seats 4, several ejector rods, and several heating elements 5. The heating elements 5 are heating tubes. The four fixed seats 4 are detachably connected from top to bottom. The cavity is detachably connected to the top of the fixed seats 4. The cavity includes side walls 6 and The bottom mold 7 is detachably connected to the lower end of the side wall 6. Several heating elements 5 are evenly distributed in the fixed seat 4 on the outside of the cavity mold. Several ejector rods include five primary ejector rods 8, five secondary ejector rods 9 and a tertiary ejector rod 10. The tertiary ejector rod 10 is installed at the bottom of the fixed seat 4. The five secondary ejector rods 9 are installed on the tertiary ejector rod 10. The five primary ejector rods 8 are respectively installed on the five secondary ejector rods 9. The top of the primary ejector rod 8 is located at the bottom of the cavity mold. The fixed seat 4 is provided with through holes for the movement of several ejector rods. The bottom mold 7 is provided with five through holes for accommodating the primary ejector rods 8.

[0019] The specific implementation process is as follows: First, turn on the heating tube to heat the groove to 450℃. Then, put the bar stock heated to 400-450℃ into the die cavity. The first station on the dual-station punch 2 first extrudes the bar stock into shape in the die cavity. Then, switch to the second station. The second station punch finally shapes the workpiece. The multi-stage ejector pin ejects the workpiece and takes out the shaped workpiece. Aluminum-magnesium alloys are more likely to undergo severe plastic deformation at warm temperatures. The mold is heated to 250℃ to keep the part in a warm state for forming, thereby improving the forming performance of aluminum-magnesium alloys.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A self-heating aluminum-magnesium alloy dual-station mold, characterized in that: The device includes an upper mold and a lower mold. The upper mold includes a top plate, a dual-station punch, and a driving mechanism. The dual-station punch is slidably connected to the bottom of the top plate. The driving mechanism is connected to the dual-station punch to drive the dual-station punch to slide. The lower mold includes a cavity, several fixed seats, several ejector rods, and several heating elements. The fixed seats are detachably connected in sequence. The cavity is detachably connected to the top of the fixed seats. The ejector rods are fixed to the bottom of the cavity. The heating elements are installed on the outside of the cavity.

2. The self-heating aluminum-magnesium alloy dual-station mold according to claim 1, characterized in that: The driving mechanism is a cylinder, which is installed at the bottom of the top plate, and the dual-station punch is connected to the output shaft of the cylinder.

3. The self-heating aluminum-magnesium alloy dual-station mold according to claim 2, characterized in that: The ejector pins include a number of primary ejector pins, a number of secondary ejector pins, and a number of tertiary ejector pins. The tertiary ejector pins are installed at the bottom of the fixed base, the secondary ejector pins are installed on the tertiary ejector pins, and the primary ejector pins are respectively installed on the secondary ejector pins. The top of the primary ejector pins is located at the bottom of the die cavity, and the fixed base is provided with through holes for the movement of the ejector pins.

4. The self-heating aluminum-magnesium alloy dual-station mold according to claim 3, characterized in that: The die includes a side wall and a bottom mold. The bottom mold is detachably connected to the lower end of the side wall, and the bottom mold is provided with several through holes for accommodating the first-stage push rod.

5. The self-heating aluminum-magnesium alloy dual-station mold according to claim 3, characterized in that: The heating element is a heating tube.

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