A fully automatic integrated preparation device for metal material grain refinement and forming

Through the integrated preparation device of fully automatic grain refining and molding of metal materials, the problems of uneven stress distribution and uneven material deformation in the plastic processing of metal materials in the prior art are solved, and the efficient grain refining and molding of materials are achieved. , improves material performance and simplifies process flow.

CN111330987BActive Publication Date: 2025-02-07RES INST OF HOHAI UNIV SUQIAN +2
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Patent Information

Application Number
CN202010263246.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-04-07
Publication Date
2025-02-07
Estimated Expiration
2040-04-07

AI Technical Summary

Technical Problem

The prior art has problems of uneven stress distribution and uneven material deformation in the plastic processing of metal materials, which makes it difficult to improve product strength and plastic properties at the same time, and the processing technology is complex and low efficiency.

Method used

A fully automatic metal material grain refining and molding integrated preparation device is designed, integrating an automated rotation system, an automatic mold change system and an extrusion forming system, which can complete grain refining and material forming at one time, simplifying the process flow And improve efficiency.

Benefits of technology

The grain refinement and molding of metal materials that were originally only suitable for casting processing was achieved, which improved the strength and toughness of the material, simplified the processing process, saved time and energy, reduced costs, and expanded the plastic forming materials that can be used for plastic forming. scope.

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Abstract

The present invention discloses an integrated preparation device for fully automatic grain refinement and forming of metal materials, including an automated rotation system, an automatic mold change system, an extrusion molding system and an automatic mold locking device; wherein, the extrusion molding system is arranged at one end of the automated rotation system, the automatic mold locking device is arranged at one side of the extrusion molding system, and the automatic mold change system is arranged at the bottom of the extrusion molding system. Beneficial effects: It can make the metal that was originally only suitable for casting processing to achieve grain refinement, improve toughness, and complete extrusion molding in one time; after the process is fully automated, a series of processing can be completed in a very short time, and the material temperature basically does not drop, and there is no need for reheating and heat preservation, which not only saves time and improves efficiency, but also saves energy, reduces costs, broadens the range of materials that can be plastically formed, and can prepare high-strength workpieces that could not be processed by plastic forming before.
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Description

Technical Field

[0001] The present invention relates to the technical field of metal material plastic processing, and in particular to a fully automatic integrated preparation device for metal material grain refinement and forming. Background Art

[0002] Metal materials can be divided into two categories according to their deformation ability: cast metals and deformed metals. Cast metals themselves have poor toughness and weak plastic forming ability. They are prone to cracking during the deformation process and cannot complete the extrusion molding of the material. Deformed alloys themselves have strong toughness and strong plastic forming ability, and can be extruded into the shape of the target product through plastic deformation. Deformed metals have greater development potential than cast metals. Through the control of material structure and the application of heat treatment processes, deformed metals can obtain higher strength, better ductility and more diverse mechanical properties, thereby meeting the application needs of diversified engineering structural parts. However, the plasticity of the metal material itself is the main factor limiting the use of deformation processing technology for the molding of cast metals.

[0003] The molding extruders currently on the market are just simple material molding. Due to the different product appearance requirements and mold shape designs, there are different degrees of deformation of the raw materials during the extrusion process, which leads to uneven product stress distribution. The smaller the deformation, the smaller the stress concentration, but the weaker the material deformation strengthening. The larger the deformation, the greater the stress concentration, the stronger the material deformation strengthening, the higher the strength, and the lower the plasticity. Stress concentration areas are often prone to product failure (low plasticity), but deformation strengthening is conducive to improving product strength. At present, in order to reduce stress concentration, post-deformation annealing is generally used, but annealing also weakens the deformation strengthening obtained by the product.

[0004] Grain refinement can improve the strength and toughness of metal materials at the same time. Therefore, compared with ordinary castings, ultrafine-grained materials have excellent comprehensive mechanical properties. Large plastic deformation is an important method for preparing ultrafine-grained materials. Among them, equal channel angular pressing (ECAP) can prepare ultrafine-grained materials of larger size. It is an ultrafine-grained process with engineering application prospects. Equal channel angular pressing, also known as equal diameter angular pressing, is a material processing method invented by Russian scientist Segal in 1981. It did not attract much attention in the 1980s. Since the end of the last century, research on ECAP has received widespread attention, especially in the use of this technology to develop bulk ultrafine grains and nanomaterials. In recent years, equal diameter angular pressing has been considered to be the most promising bulk ultrafine grain material processing technology for industrial application. After multiple ECAP processes, most aluminum alloys, titanium metals, low carbon steels and stainless steels have obtained ultrafine grain structures with grain sizes below 1μm, and some have even reached bulk nanomaterials with grain diameters of about 100nm; the uniformity of the organization and the mechanical properties of the material have been significantly improved, especially the plastic deformation ability and toughness have been greatly improved. For example, Professor Ma Aibin of Hohai University used rotary equal channel angular extrusion (RD-ECAP) to process aluminum-silicon eutectic alloy, which increased the impact toughness of the alloy by 10 times. It can be seen that ECAP is one of the important means to improve the organization and mechanical properties of metal materials, but the current ECAP research is still in the laboratory stage, and can only prepare ultrafine grain blocks. To make usable workpieces, secondary processing must be carried out, and the process is complicated. In addition, both ECAP processing and forming processing are large plastic processing, which requires heating the metal to a certain temperature and keeping it warm for a certain period of time. After the temperature of the entire material is uniform, hot processing is carried out. The current process is divided into two steps for ECAP ultrafine grain processing and material forming processing, which requires two repeated heating and insulation, which is inefficient and there is a lot of waste of materials and energy.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0006] In response to the problems in the related technology, the present invention proposes an integrated preparation device for fully automatic grain refinement and forming of metal materials. Based on the original RD-ECAP mold, it integrates an automated rotation system, an automatic mold changing system and an extrusion molding system, which can complete grain refinement and material molding at one time, so as to overcome the above-mentioned technical problems existing in the existing related technology.

[0007] To this end, the specific technical solution adopted by the present invention is as follows:

[0008] A fully automatic integrated preparation device for grain refinement and forming of metal materials, comprising an automated rotation system, an automatic mold changing system, an extrusion molding system and an automatic mold locking device; wherein the extrusion molding system is arranged at one end of the automated rotation system, the automatic mold locking device is arranged at one side of the extrusion molding system, and the automatic mold changing system is arranged at the bottom end of the extrusion molding system.

[0009] Furthermore, in order to realize the automatic rotation of the mold, the automatic rotation system includes a motor and a chain matched with the motor, and one end of the chain away from the motor is matched with the extrusion molding system.

[0010] Furthermore, in order to extrude and form wires, plates, pipes, etc., the extrusion molding system includes a forging die that cooperates with the chain, the forging die is octagonal in shape, and two cross-shaped square channels are opened inside the forging die, four sliders are installed inside the square channels, a main extrusion rod is arranged on the front side of the forging die, and a second hydraulic rod is arranged on the left side of the forging die.

[0011] Furthermore, in order to achieve seamless docking between the RD-ECAP mold and the forming mold and thus realize automatic mold changing, the automatic mold changing system includes a steel plate that matches the forging mold, a hollow slider groove that matches the slider is opened on one side of the middle part of the steel plate, a forming mold is arranged at one end of the steel plate, and a first hydraulic rod that matches the slider is arranged at one end of the steel plate close to the forming mold.

[0012] Furthermore, in order to lock the forging die and the forming die and ensure the normal and stable operation of the fully automatic integrated preparation device for grain refinement and forming of metal materials, the automatic locking device includes a rear locking clamp and a front locking clamp located in front of the rear locking clamp, and the raw materials to be processed are loaded before the rear locking clamp is merged with the front locking clamp.

[0013] Furthermore, in order to allow the slider to slide smoothly in the square channel inside the forging die during the extrusion process, the four sliders are distributed in a cross shape inside the square channel.

[0014] Furthermore, in order to allow the slider to slide smoothly in the square channel inside the forging die during the extrusion process, the aperture of the square channel is larger than the width of the slider, and lubricating oil is filled between the inner wall of the square channel and the slider.

[0015] Furthermore, in order to ensure that the motor drives the forging die to move smoothly through the chain, sprockets matching the chain are respectively provided on the output shaft of the motor and the input shaft of the forging die.

[0016] Furthermore, in order to reserve a discharge port for the wires, plates, pipes, etc. after extrusion, a first through hole is horizontally opened on the rear locking pliers, and the first through hole is perpendicular to the second hydraulic rod.

[0017] Furthermore, in order to ensure the normal operation of the main machine extrusion rod, a second through hole matching the main machine extrusion rod is horizontally opened on the front locking pliers, and the inner diameter of the second through hole is larger than the diameter of the main machine extrusion rod, and the second through hole is perpendicular to the second hydraulic rod.

[0018] The beneficial effects of the present invention are:

[0019] (1) By using this fully automatic integrated preparation device for grain refinement and forming of metal materials, metals that were originally only suitable for casting processing can be refined in grains, their toughness improved, and extrusion forming can be completed in one go.

[0020] (2) After the process is fully automated, a series of processing can be completed in a very short time. The material temperature basically does not drop, and there is no need for reheating and insulation. This not only saves time and improves efficiency, but also saves energy, reduces costs, broadens the range of materials that can be plastically formed, and can produce high-strength workpieces that could not be processed by plastic forming before. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is an overall assembly diagram of an automated rotation system and an automated mold changing system of an integrated preparation device for fully automated metal material grain refinement and molding according to an embodiment of the present invention;

[0023] Figure 2 2 is a schematic structural diagram of an automated rotating system of an integrated preparation device for fully automatic metal material grain refinement and forming according to an embodiment of the present invention;

[0024] Figure 3 2 is a schematic structural diagram of an automatic die-changing system of an integrated preparation device for fully automatic metal material grain refinement and forming according to an embodiment of the present invention;

[0025] Figure 4 Schematic diagram of RD-ECAP grain refinement processing of a fully automatic integrated preparation device for grain refinement and forming of metal materials according to an embodiment of the present invention;

[0026] Figure 5 2 is a schematic structural diagram of an automatic die-changing system of an integrated preparation device for fully automatic metal material grain refinement and forming according to an embodiment of the present invention;

[0027] Figure 6 2 is a schematic structural diagram of an extrusion molding system of a fully automatic integrated preparation device for metal material grain refinement and molding according to an embodiment of the present invention;

[0028] Figure 7 This is a comparison chart of mechanical properties tests after conventional extrusion molding and automated RD-ECAP fine-grain extrusion molding of AZ91 magnesium alloy according to an embodiment of the present invention;

[0029] Figure 8 This is a comparison chart of mechanical properties tests of AZ61 magnesium alloy after conventional extrusion molding and automated RD-ECAP fine grain extrusion molding according to an embodiment of the present invention.

[0030] In the figure:

[0031] 1. Motor; 2. Forging die; 3. Chain; 4. Steel plate; 5. Hollow slider groove; 6. Forming die; 7. First hydraulic rod; 8. Slider; 9. Raw materials to be processed; 10. Automatic mold locking device; 1001. Rear locking clamp; 1002. Front locking clamp; 11. Main machine extrusion rod; 12. Second hydraulic rod; 13. Square channel; 14. First through hole; 15. Second through hole. DETAILED DESCRIPTION

[0032] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0033] According to an embodiment of the present invention, a fully automatic integrated preparation device for grain refinement and forming of metal materials is provided.

[0034] The present invention is further described with reference to the accompanying drawings and specific embodiments. Figure 1-6 As shown, the integrated preparation device for fully automatic grain refinement and forming of metal materials according to an embodiment of the present invention includes an automated rotation system, an automatic mold changing system, an extrusion molding system and an automatic mold locking device 10; wherein, the extrusion molding system is arranged at one end of the automated rotation system, the automatic mold locking device 10 is arranged at one side of the extrusion molding system, and the automatic mold changing system is arranged at the bottom end of the extrusion molding system.

[0035] With the help of the above technical solution, by utilizing this fully automatic integrated preparation device for grain refinement and forming of metal materials, the metal that was originally only suitable for casting processing can be refined in grains, and after the toughness is improved, extrusion forming can be completed in one go; and after the process is fully automated, a series of processing can be completed in a very short time, and the material temperature basically does not drop, and there is no need for reheating and insulation, which not only saves time and improves efficiency, but also saves energy, reduces costs, broadens the range of materials that can be plastically formed, and can prepare high-strength workpieces that could not be processed by plastic forming before.

[0036] In one embodiment, for the above-mentioned automated rotation system, the automated rotation system includes a motor 1 and a chain 3 matched with the motor 1, and one end of the chain 3 away from the motor 1 matches with the extrusion molding system, thereby realizing automated rotation of the mold.

[0037] In one embodiment, for the above-mentioned extrusion molding system, the extrusion molding system includes a forging die 2 matched with the chain 3, the forging die 2 is octagonal in shape, and two cross-shaped square channels 13 are opened inside the forging die 2, and four sliders 8 are installed inside the square channel 13. A main extrusion rod 11 is arranged on the front side of the forging die 2, and a second hydraulic rod 12 is arranged on the left side of the forging die 2, so as to extrude and mold wires, plates, pipes, etc.

[0038] In one embodiment, for the above-mentioned automatic die changing system, the automatic die changing system includes a steel plate 4 matched with the forging die 2, a hollow slider groove 5 matched with the slider 8 is opened on one side of the middle part of the steel plate 4, a forming die 6 is arranged at one end of the steel plate 4, and a first hydraulic rod 7 matched with the slider 8 is arranged at one end of the steel plate 4 close to the forming die 6, thereby realizing seamless docking of the RD-ECAP die and the forming die, and then realizing automatic die changing.

[0039] In one embodiment, for the above-mentioned automatic mold locking device 10, the automatic mold locking device 10 includes a rear locking clamp 1001 and a front locking clamp 1002 located in front of the rear locking clamp 1001, and the raw material 9 to be processed is loaded before the rear locking clamp 1001 and the front locking clamp 1002 are combined, so as to lock the forging die 2 and the forming die 6, thereby ensuring the normal and stable operation of the fully automatic integrated preparation device for metal material grain refinement and forming.

[0040] In one embodiment, for the above-mentioned sliders 8, four sliders 8 are distributed in a cross shape inside the square channel 13, so that the sliders 8 can slide smoothly in the square channel 13 inside the forging die 2 during the extrusion process.

[0041] In one embodiment, for the above-mentioned square channel 13, the aperture of the square channel 13 is larger than the width of the slider 8, and lubricating oil is filled between the inner wall of the square channel 13 and the slider 8, so that the slider 8 can slide smoothly in the square channel 13 inside the forging die 2 during the extrusion process.

[0042] In one embodiment, for the above-mentioned motor 1, sprockets matching with the chain 3 are respectively provided on the output shaft of the motor 1 and the input shaft of the forging die 2, so as to ensure that the motor 1 can smoothly drive the forging die 2 to move through the chain 3.

[0043] In one embodiment, for the above-mentioned rear locking pliers 1001, a first through hole 14 is horizontally opened on the rear locking pliers 1001, and the first through hole 14 is perpendicular to the second hydraulic rod 12, so as to reserve a discharge port for the extruded wire, plate, pipe, etc.

[0044] In one embodiment, for the above-mentioned front locking pliers 1002, a second through hole 15 is horizontally opened on the front locking pliers 1002 to cooperate with the main machine extrusion rod 11, and the inner diameter of the second through hole 15 is larger than the diameter of the main machine extrusion rod 11, and the second through hole 15 is perpendicular to the second hydraulic rod 12, thereby ensuring the normal operation of the main machine extrusion rod 11.

[0045] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process is described in detail below.

[0046] Automated Rotation System:

[0047] At present, the RD-ECAP mold in the laboratory is rotated manually, and the RD-ECAP mold has to bear great extrusion force and impact vibration during the extrusion process, so it needs to be locked and fixed. The directional rotation of 90° needs to be completed accurately between the RD-ECAP extrusion passes. In the automation process, motor 1 is selected to achieve directional rotation, but due to the huge pressure and vibration during the processing, the motor cannot be directly rigidly connected to the RD-ECAP mold. Therefore, a flexible chain 3 transmission is used to realize the automatic rotation of the mold, such as Figure 2 shown.

[0048] Automatic mold changing system:

[0049] In order to realize the continuous processing of RD-ECAP, four sliders 8 must be used, and the position of the forming mold 6 must be blocked with a solid thick steel plate 4. After the ECAP fine grain processing is completed and before the forming process, the front slider 8 needs to be removed and the position of the thick steel plate 4 needs to be replaced with a preheated forming mold 6 (a mold of different shapes can be replaced according to the forming needs) to achieve seamless docking of the RD-ECAP mold and the forming mold. Therefore, an automatic mold change system is designed, such as Figure 3 After the RD-ECAP fine grain processing is completed, the hollow slider groove 5 is moved to the front of the RD-ECAP mold by the first hydraulic rod 7, and the front slider 8 is taken away with the cooperation of the hydraulic rod, and the preheated forming mold 6 is sent to the front of the RD-ECAP mold by the first hydraulic rod 7 again, realizing automatic mold change.

[0050] Extrusion molding system:

[0051] like Figure 1 , 4 As shown in , 5 and 6, the slider 8 on the left side of the mold needs to keep sliding during the RD-ECAP fine grain processing, and sufficient rotation space needs to be left for the RD-ECAP mold, but it needs to be blocked and fixed during the extrusion molding process, so it is designed as a movable second hydraulic rod 12. After the RD-ECAP fine grain processing is completed, the preheated molding die 6 is quickly replaced to the front of the RD-ECAP mold through the automatic mold changing system, and then the rear locking clamp 1001 and the front locking clamp 1002 are merged to lock the forging mold 2 and the molding mold 6. At the same time, the second hydraulic rod 12 will press the left side of the mold, and the main machine extrusion rod 11 will move forward, pushing the rear slider 8 forward, thereby pushing the raw material 9 to be processed through the molding die 6 and extruding it into wires, plates, pipes, etc.

[0052] In actual application, before the forging process begins, the rear locking clamp 1001 and the front locking clamp 1002 in the automatic clamping device 10 are separated, and the induction heating furnace is lowered and put on the forging die 2 to heat it to an appropriate temperature and keep it warm for a certain period of time. After the raw material 9 to be processed is fully preheated, the induction heating furnace is raised, and the rear locking clamp 1001 and the front locking clamp 1002 in the automatic clamping device 10 are combined to lock the forging die. At this time, the solid steel plate 4 in the automatic die changing system is located in front of the die to limit the sliding of the slider 8. When the main extrusion rod 11 is pressurized, the raw material 9 to be processed can only move to the left side of the die, and the grain refinement is achieved through the right-angled shearing action of the inner wall of the cross-shaped square channel 13. At the same time, the slider 8 on the left is ejected halfway, as shown in FIG. Figure 4As shown in FIG. 1 , under the back pressure of the slider 8, the raw material 9 to be processed undergoes shear deformation and eventually maintains a rectangular shape. This is a single extrusion process of equal channel angular extrusion (ECAP). After one extrusion, the rear locking clamp 1001 and the front locking clamp 1002 are separated, and the motor 1 drives the forging die 2 through the chain 3. Figure 1 Rotate 90° clockwise along the middle edge, and then return to the Figure 1 The process is repeated to realize the automatic multi-pass ECAP processing. After the predetermined number of passes, the rear locking clamp 1001 and the front locking clamp 1002 are separated, and the hollow slider groove 5 is sent to the front of the forging die through the first hydraulic rod 7. Then, the rear locking clamp 1001 and the front locking clamp 1002 are combined and locked. At the same time, the second hydraulic rod 12 presses the left side of the die to limit the sliding of the left slider 8. At this time, the main machine extrusion rod 11 moves forward, and the raw material 9 to be processed can only slide forward along the direction of the extrusion rod, pushing the front slider 8 to the hollow slider groove 5. Figure 5 As shown. Then, the main extrusion rod 11 stops and retreats, the second hydraulic rod 12 retreats, the rear locking clamp 1001 and the front locking clamp 1002 separate, and the first hydraulic rod 7 continues to push downward to take away the front slider 8, and send the preheated forming die 6 to the front of the forging die 2, and then the rear locking clamp 1001 and the front locking clamp 1002 are merged to lock the forging die 2 and the forming die 6, and at the same time the second hydraulic rod 12 will press the left side of the die. The main extrusion rod 11 moves forward, pushing the rear slider 8 forward, thereby pushing the raw material 9 to be processed through the forming die 6, and extruding it into wire, plate, pipe, etc., as shown. Figure 6 shown.

[0053] In order to facilitate the understanding of the above technical solution of the present invention, the above solution of the present invention is described in detail below in combination with experimental data, as follows:

[0054] Experiment 1:

[0055] Comparison of mechanical properties of AZ91 magnesium alloy after conventional extrusion and automated RD-ECAP fine-grain extrusion. Figure 7 shown.

[0056] The ultimate strength of AZ91 magnesium alloy in ordinary extrusion molding is 250MPa, and the elongation at break is 15%;

[0057] AZ91 magnesium alloy automated RD-ECAP fine-grain extrusion molding, ultimate strength 380Mpa, elongation at break 27%;

[0058] After the AZ91 magnesium alloy is formed by automated RD-ECAP fine-grain extrusion, the ultimate strength is increased by 52% and the elongation at break is increased by 80%.

[0059] Experiment 2:

[0060] Comparison of mechanical properties of AZ61 magnesium alloy after conventional extrusion and automated RD-ECAP fine-grain extrusion. Figure 8 shown.

[0061] The ultimate strength of AZ61 magnesium alloy in ordinary extrusion molding is 170MPa, and the elongation at break is 14%;

[0062] AZ61 magnesium alloy automated RD-ECAP fine-grain extrusion molding, ultimate strength 290Mpa, elongation at break 24%;

[0063] After the AZ91 magnesium alloy is subjected to automated RD-ECAP fine-grain extrusion molding, the ultimate strength is increased by 70.6% and the elongation at break is increased by 71.4%.

[0064] To sum up, with the help of the above-mentioned technical scheme of the present invention, by utilizing this fully automatic integrated preparation device for grain refinement and forming of metal materials, the metal that was originally only suitable for casting processing can be refined in grains, and after the toughness is improved, extrusion forming can be completed in one time; and after the process is fully automated, a series of processing can be completed in a very short time, and the material temperature basically does not drop, and there is no need for reheating and insulation, which not only saves time and improves efficiency, but also saves energy, reduces costs, broadens the range of materials that can be plastically formed, and can prepare high-strength workpieces that could not be processed by plastic forming before.

[0065] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic integrated preparation device for metal material grain refinement and forming, characterized in that: It includes an automated rotation system, an automatic mold changing system, an extrusion molding system and an automatic mold locking device (10); Wherein, the extrusion molding system is arranged at one end of the automatic rotation system, the automatic mold locking device (10) is arranged at one side of the extrusion molding system, and the automatic mold changing system is arranged at the bottom end of the extrusion molding system; The automatic mold locking device (10) comprises a rear locking clamp (1001) and a front locking clamp (1002) located in front of the rear locking clamp (1001), and the raw material (9) to be processed is loaded before the rear locking clamp (1001) and the front locking clamp (1002) are combined; The rear locking pliers (1001) is horizontally provided with a first through hole (14), and the first through hole (14) is perpendicular to the second hydraulic rod (12); The front locking pliers (1002) is horizontally provided with a second through hole (15) that matches the main machine extrusion rod (11), and the inner diameter of the second through hole (15) is larger than the diameter of the main machine extrusion rod (11), and the second through hole (15) is perpendicular to the second hydraulic rod (12).

2. The fully automatic integrated preparation device for metal material grain refinement and forming according to claim 1, characterized in that: The automated rotation system comprises a motor (1) and a chain (3) matched with the motor (1), and one end of the chain (3) away from the motor (1) is matched with the extrusion molding system.

3. The fully automatic integrated preparation device for metal material grain refinement and forming according to claim 2, characterized in that: The extrusion molding system comprises a forging die (2) matched with the chain (3), the forging die (2) is octagonal in shape, and two cross-shaped square channels (13) are opened inside the forging die (2), four slide blocks (8) are installed inside the square channel (13), a main machine extrusion rod (11) is arranged on the front side of the forging die (2), and a second hydraulic rod (12) is arranged on the left side of the forging die (2).

4. The fully automatic integrated preparation device for metal material grain refinement and forming according to claim 3, characterized in that: The automatic die-changing system comprises a steel plate (4) matched with the forging die (2), a hollow slider groove (5) matched with the slider (8) is provided on one side of the middle part of the steel plate (4), a forming die (6) is provided at one end of the steel plate (4), and a first hydraulic rod (7) matched with the slider (8) is provided at one end of the steel plate (4) close to the forming die (6).

5. The fully automatic integrated preparation device for metal material grain refinement and forming according to claim 3, characterized in that: The four sliding blocks (8) are distributed in a cross shape inside the square channel (13).

6. The fully automatic integrated preparation device for metal material grain refinement and forming according to claim 3, characterized in that: The aperture of the square channel (13) is larger than the width of the slider (8), and lubricating oil is filled between the inner wall of the square channel (13) and the slider (8).

7. The fully automatic integrated preparation device for metal material grain refinement and forming according to claim 3, characterized in that: The output shaft of the motor (1) and the input shaft of the forging die (2) are respectively provided with sprockets matching the chain (3).

Citation Information

Patent Citations

  • Intra-pipe high pressure forming system

    CN104607526A

  • Continuous processing device and processing method for ultra-fine grained metal profile

    CN106077118A

  • Circulating rotating die extruding and upsetting forming device and method

    CN108380802A

  • Mobile die slide block mechanism for extruding machine

    CN201067770Y

  • Full-automatic integrated preparation device for metal material grain refinement and molding

    CN212238643U