A magnesium alloy forging apparatus and a magnesium alloy forging method capable of continuous heating

Abstract

The application provides a magnesium alloy forging equipment capable of continuous heating and a forging method, relates to the technical field of magnesium alloy processing, and comprises a base and a plurality of supporting columns. The base is provided with a forging die and a mounting groove. The forging die is provided with input and output leads on both sides. The mounting groove is provided with a power supply. The supporting column is provided with a top cover on one side. The top cover is provided with a hydraulic rod. The application cooperates the up Latin, down Latin, Latin structure, first power connection and second power connection to stop the middle frequency heating coil correspondingly, saves energy, continuously heats the forming cavity through the middle frequency heating coil, reduces the cooling speed of the bar, and thus does not need to be reheated and insulated, can obviously shorten the complex forming process, and reduces the time required for forging.

Description

Technical Field

[0001] This invention relates to the field of magnesium alloy processing technology, specifically to a magnesium alloy forging equipment and forging method capable of continuous heating. Background Technology

[0002] Magnesium alloys are alloys composed of magnesium as the base and other elements added. Their characteristics include: low density, high strength, high elastic modulus, good heat dissipation, good shock absorption, greater impact load capacity than aluminum alloys, and good resistance to corrosion from organic matter and alkalis. The main alloying elements include aluminum, zinc, manganese, cerium, thorium, and small amounts of zirconium or cadmium. Magnesium-aluminum alloys are the most widely used, followed by magnesium-manganese alloys and magnesium-zinc-zirconium alloys, which are widely used in portable devices and the automotive industry.

[0003] For example, Chinese Patent Publication No. CN202310541404.0 discloses a method and equipment for forming magnesium alloy forgings, which includes a frame, a stamping press, and a forging die. The forging die includes a base plate, a lower template, a die sleeve, a connecting plate, a backing plate, an upper die, a punch, an upper die plate, and a lower die plate. The upper die plate is removed, the stamping press is started, and the upper template, backing plate, and connecting plate move upward, allowing the punch to detach from the stamping cavity. An oil-based graphite lubricant is sprayed to lubricate the stamping cavity and the forming cavity. The magnesium alloy bar is placed in the stamping cavity, and the stamping press is started, thereby using the punch to extrude and forge the bar. After forming, the upper die plate is assembled, the lower die plate is removed, and then the stamping press is started again, causing the upper template, backing plate, connecting plate, and die sleeve to move upward. The formed part is then removed from the lower template. Using the above structure, there is no need to perform multiple forming and heating processes on the magnesium alloy forgings, reducing the impact on the performance of the magnesium alloy forgings.

[0004] However, in the above-mentioned technical solutions, the current magnesium alloy processing mainly involves placing the heated magnesium alloy into a mold and then using forging equipment to extrude and forge the heated magnesium alloy. However, magnesium alloys dissipate heat quickly, which means that each time the magnesium alloy is extruded and forged, it is necessary to put the magnesium alloy back into the heating furnace for heat preservation from time to time. Only after the heat preservation is completed can forging continue. This not only prolongs the forging time, but also causes the internal grains of the magnesium alloy to grow due to repeated heat preservation, which affects the quality of the magnesium alloy. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a magnesium alloy forging equipment and forging method capable of continuous heating, which can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a magnesium alloy forging device capable of continuous heating, comprising a base and several support columns, wherein a forging die and an installation groove are provided on the base, an input wire and an output wire are respectively provided on both sides of the forging die, a power supply is provided in the installation groove, the forging die is connected to the power supply through the input wire, a top cover is provided on one side above the support columns, and a hydraulic rod is provided on the top cover.

[0007] Preferably, the forging die includes a die base, an upper template is provided on one side above the die base, a die sleeve is provided between the upper template and the die base, two first Latin grooves are provided on the outer wall surface of the side of the die base and the die sleeve that are close to each other, and two second Latin grooves are provided on the outer wall surface of the side of the upper template and the die sleeve that are close to each other. A lower Latin groove and an upper Latin groove are respectively provided in the first Latin groove and the second Latin groove. A punch is provided on the upper template, and the punch is movably disposed in the feed groove located on the die sleeve. The feed groove and the die base are closed to form a forming cavity.

[0008] Preferably, a first power connector is fixedly provided on the inner wall below the first Latin groove on the mold base, and a second power connector is fixedly provided on the inner wall above the first Latin groove on the mold sleeve. First slots are provided on the inner walls of the upper and lower sides of the second Latin groove. The mold sleeve is provided with a Latin structure and a medium-frequency heating coil, and the medium-frequency heating coil surrounds the molding cavity.

[0009] Preferably, the upper template is fixedly connected to the hydraulic rod, and the second power connector is located directly above the second power connector of the first Latin groove.

[0010] Preferably, the lower Latin includes a Latin base, on which a groove is provided. A first sliding post and a second sliding post are slidably disposed in the groove. A first ball and a second ball are respectively fixed on the side of the first and second sliding posts that are far apart from each other. Two insulating partitions and a conductive post are disposed between the first and second sliding posts. A first spring is fixedly disposed between the two insulating partitions.

[0011] Preferably, the Latin structure has a first rotating column and a second rotating column rotatably arranged in the mold sleeve. A first gear and a second gear are fixedly arranged at the ends of the first rotating column and the second rotating column that are far apart from each other. A first umbrella wheel and a second umbrella wheel are fixedly arranged at the ends of the first rotating column and the second rotating column that are close to each other. A third umbrella wheel is arranged between the first umbrella wheel and the second umbrella wheel. A first rack and a second rack are slidably arranged in the mold sleeve.

[0012] Preferably, the first power connector includes a connector base with a groove. A conductive sheet is fixedly disposed in the groove. A second slot is provided on the side of the conductive sheet near the lower radiating coil. A through groove is provided on the side of the groove near the intermediate frequency heating coil. An electric wire is disposed in the through groove. An insulating baffle is slidably disposed on the side of the connector base near the lower radiating coil. A second spring is fixedly disposed on the outer wall of the insulating baffle on the side near the intermediate frequency heating coil.

[0013] Preferably, the Latin base and the connector base are made of insulating material, the first sliding column, the second sliding column, the first ball and the second ball are made of conductive material, the two insulating partitions are fixedly connected to the first sliding column and the second sliding column respectively, and the two ends of the conductive column pass through the insulating partition and are slidably connected to the first sliding column and the second sliding column; The conductive sheet is fixedly connected to the wire. The first slot and the second slot are semi-circular. The wires of different first power connectors are respectively connected to the input wire, the output wire and the intermediate frequency heating coil.

[0014] Preferably, the first gear and the second gear mesh with the first rack and the second rack respectively, the two sides of the third parasol wheel mesh with the first parasol wheel and the second parasol wheel respectively, the upper Latin wheel has the same structure as the lower Latin wheel, the second power connector has the same structure as the first power connector, and the third parasol wheel is rotatably connected to the mold sleeve.

[0015] A method for forging magnesium alloys includes the following steps: Step 1: Place the bar stock into the heating furnace and heat it to 250-450℃. Depending on the size of the bar stock, keep it at that temperature for more than 3 hours to ensure that the bar stock is thoroughly heated and the temperature is uniform. Step 2: Open the forging die and spray the working cavity of the die with oil-based graphite lubricant; Step 3: Place the lower Latin groove into the first Latin groove to fix the mold base and the mold sleeve. The medium frequency heating coil will start automatically and continuously heat the molding cavity through the medium frequency heating coil.

[0016] Step 4: The bar stock is placed into the forming cavity through the feed chute, and then the bar stock is forged multiple times. Step 5: After the bar stock is formed, place the upper Latin groove into the second Latin groove, fix the upper template to the mold sleeve, and the lower Latin groove leaves the first Latin groove. Then the medium frequency heating coil will automatically shut off due to loss of power. Step Six: The hydraulic rod and upper template drive the mold sleeve to move, causing the mold sleeve to detach from the mold base. The forming bar in the forming cavity automatically detaches under the action of gravity and falls onto the mold base. Then the forming bar is removed.

[0017] This invention provides a magnesium alloy forging apparatus and forging method capable of continuous heating. It has the following beneficial effects: This invention first opens the upper part of the forging die using a hydraulic rod, then lubricates the working cavity of the forging die with an oil-based graphite lubricant. Next, the lower and middle parts of the forging die are fixedly connected. Then, power is supplied through the input wire to activate the internal components of the forging die, causing continuous self-heating of the inner cavity. The bar stock is then placed into the inner cavity of the forging die, and the hydraulic rod is activated again. Through the hydraulic rod and the forging components inside the forging die, the bar stock in the inner cavity is extruded and forged. By implementing safety protection during the forging process and reducing the cooling rate of the bar stock through continuous self-heating of the inner cavity of the forging die, the forging time of a single forging operation is extended, eliminating the need for reheating in the furnace. This significantly shortens the complex forming process and reduces the forging time required.

[0018] In the bar forming process, the billet is always in a closed mold cavity, forming a stress state similar to extrusion, which greatly improves the plasticity of the bar and significantly shortens the complex forming process.

[0019] When the lower Latin tube is placed into the first Latin tube groove, the first and second power connectors are electrically connected through the first ball, the second ball, the first slide post, the second slide post, and the conductive post. When it is necessary to remove the lower Latin tube from the first Latin tube groove, the Latin tube base is pushed forcefully to remove the lower Latin tube from the first Latin tube groove. At the same time, the electrical connection between the first and second power connectors is released. Then, the intermediate frequency heating coil automatically shuts off due to the loss of power, and no longer continuously heats the molding cavity, thus saving energy.

[0020] When the lower Latin strip is placed into the first Latin strip groove, the second slot, the first bead, and the second bead are used to fix the lower Latin strip in position to a certain extent. When the upper Latin strip enters the second Latin strip groove, the same principle applies, and the first slot and the first and second beads on the upper Latin strip fix the upper Latin strip in position to a certain extent. When the lower Latin strip leaves the first Latin strip groove, the second spring rebounds, causing the insulating baffle to re-close the groove and prevent accidental contact with the conductive sheet.

[0021] When the upper lasing rod is inserted into the second lasing rod groove, the second rack pushes the lower lasing rod to move, causing the lower lasing rod to automatically disengage from the first lasing rod groove. When the lower lasing rod is inserted into the first lasing rod groove, the lower lasing rod presses against the second rack, and then the first rack pushes the upper lasing rod to move, causing the upper lasing rod to automatically disengage from the second lasing rod groove. This eliminates the need for workers to manually disassemble the lower or upper lasing rod, facilitating subsequent forging operations. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a schematic cross-sectional view of the forging die in this invention; Figure 4 This is a cross-sectional three-dimensional structural diagram of the forging die in this invention; Figure 5 For the present invention Figure 4 A magnified schematic diagram of the partial structure at point A in the middle; Figure 6 For the present invention Figure 4 A magnified schematic diagram of the local structure at point B; Figure 7 This is a schematic cross-sectional view of the lower Latin section in this invention; Figure 8 This is a schematic diagram of the Latin structure in this invention; Figure 9 This is a cross-sectional three-dimensional structural diagram of the first energized connector in this invention; Figure 10 This is a schematic diagram of the forging process of the present invention.

[0023] The components include: 1. Base; 2. Support column; 3. Forging die; 301. Die base; 302. Upper template; 303. Die sleeve; 304. First Latin groove; 305. Second Latin groove; 306. Lower Latin groove; 30601. Latin groove base; 30602. Slide groove; 30603. First sliding column; 30604. Second sliding column; 30605. First ball; 30606. Second ball; 30607. Insulating partition; 30608. Conductive column; 30609. First spring; 307. Upper Latin groove; 308. First power connector; 30801. Connector base; 30802. Groove; 30803. Conductive sheet; 30804. Second slot; 30805. Through groove. 30806, Wire; 30807, Insulating baffle; 30808, Second spring; 309, Second power connector; 3010, First slot; 3011, Punch; 3012, Latin structure; 30121, First rotating column; 30122, Second rotating column; 30123, First gear; 30124, Second gear; 30125, First parasol wheel; 30126, Second parasol wheel; 30127, Third parasol wheel; 30128, First rack; 30129, Second rack; 3013, Medium frequency heating coil; 3014, Feed chute; 3015, Forming cavity; 4, Mounting slot; 5, Input wire; 6, Output wire; 7, Power supply; 8, Top cover; 9, Hydraulic rod. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0025] like Figure 1 and Figure 2 As shown, this embodiment of the invention provides a magnesium alloy forging device capable of continuous heating, including a base 1 and several support columns 2. The base 1 is provided with a forging die 3 and a mounting groove 4. Input wires 5 and output wires 6 are respectively provided on both sides of the forging die 3. A power supply 7 is provided in the mounting groove 4. The forging die 3 is connected to the power supply 7 through the input wires 5. A top cover 8 is provided on one side above the support columns 2. A hydraulic rod 9 is provided on the top cover 8.

[0026] like Figures 3 to 6 As shown, the forging die 3 includes a die base 301. An upper template 302 is provided on one side of the die base 301. A die sleeve 303 is provided between the upper template 302 and the die base 301. Two first Latin grooves 304 are provided on the outer wall surface of the side of the die base 301 and the die sleeve 303 that are close to each other. Two second Latin grooves 305 are provided on the outer wall surface of the side of the upper template 302 and the die sleeve 303 that are close to each other. A lower Latin groove 306 and an upper Latin groove 307 are respectively provided in the first Latin groove 304 and the second Latin groove 305. A punch 3011 is provided on the upper template 302. The punch 3011 is movably disposed in the feed groove 3014 located on the die sleeve 303. The feed groove 3014 and the die base 301 are closed to form a forming cavity 3015. A first power connector 308 is fixedly installed on the inner wall below the first Latin groove 304 on the mold base 301, and a second power connector 309 is fixedly installed on the inner wall above the first Latin groove 304 on the mold sleeve 303. The inner walls of the upper and lower sides of the second Latin groove 305 are provided with first slots 3010. The mold sleeve 303 is provided with a Latin structure 3012 and a medium frequency heating coil 3013, and the medium frequency heating coil 3013 surrounds the molding cavity 3015.

[0027] With the above technical solution, when forging bar stock is required, the upper template 302 is first separated from the die sleeve 303 by the hydraulic rod 9. Then, oil-based graphite lubricant is sprayed to lubricate the feed groove 3014 and the inner cavity of the forming cavity 3015. The lower lasing plate 306 is then placed into the first lasing plate groove 304. The lower lasing plate 306 and the first lasing plate groove 304 fix the mold base 301 and the die sleeve 303 together. At the same time, the two ends of the lower lasing plate 306 are aligned with the first power connector 308. With the internal components in place, the power supply 7 can start the intermediate frequency heating coil 3013 through the input wire 5, the first power connector 308, the lower energizer 306, and the second power connector 309. The intermediate frequency heating coil 3013 continuously heats the forming cavity 3015. Then, the bar stock is placed into the forming cavity 3015 through the feed groove 3014. Subsequently, the upper template 302 drives the punch 3011 to move towards the bar stock through the hydraulic rod 9. The punch 3011 is used to perform multiple extrusion forging of the bar stock. Under the action of punch 3011, the bar stock first undergoes upsetting deformation. As punch 3011 continues to descend, the bar stock begins to deform radially and the ribs begin to form. When the ribs are nearing the end of forming, the bar stock is formed through the extrusion forming stage. During the bar stock forming process, the forming cavity 3015 is continuously heated by the medium frequency heating coil 3013, thereby reducing the cooling rate of the bar stock and extending the bar stock forging time. This eliminates the need for reheating in the furnace. Furthermore, the billet is always in a closed die cavity, forming a stress state similar to extrusion, which greatly improves the plasticity of the bar stock and significantly shortens the complex forming process. After the bar stock is formed, the upper Latin groove 307 is placed into the second Latin groove 305. The upper template 302 and the mold sleeve 303 are fixedly connected through the upper Latin groove 307 and the second Latin groove 305. The upper Latin groove 307 extrudes some components of the Latin structure 3012, while the Latin structure 3012 pushes the lower Latin groove 306 to move, causing the lower Latin groove 306 to gradually detach from the interior of the first Latin groove 304. When the upper Latin groove 307 is completely inserted into the second Latin groove 305, the Latin structure 3012 also completely pushes the lower Latin groove 306 out of the interior of the first Latin groove 304. At this time, the lower Latin groove 306 separates from the first energizing connector 308 and the second energizing connector 309. Then, the intermediate frequency heating coil 3013 loses its power due to power loss. The circuit automatically shuts off when power is cut off, ceasing continuous heating of the forming cavity 3015 and saving energy. Subsequently, the hydraulic rod 9 and the upper template 302 drive the mold sleeve 303 to move, causing the mold sleeve 303 to detach from the mold base 301. The forming bar in the forming cavity 3015 automatically detaches under gravity and falls onto the mold base 301. The forming bar is then removed, allowing the mold sleeve 303 to re-fit with the mold base 301. The lower Latin 306 is then placed into the first Latin groove 304, where it presses against some components of the Latin structure 3012. The Latin structure 3012 pushes the upper Latin 307 away from the second Latin groove 305. The above steps are repeated to perform repeated forging.

[0028] like Figure 7 As shown, the lower Latin 306 includes a Latin base 30601, on which a groove 30602 is provided. A first sliding post 30603 and a second sliding post 30604 are slidably disposed in the groove 30602. A first ball 30605 and a second ball 30606 are respectively fixedly disposed on the side of the first sliding post 30603 and the second sliding post 30604 that are far apart from each other. Two insulating partitions 30607 and a conductive post 30608 are disposed between the first sliding post 30603 and the second sliding post 30604. A first spring 30609 is fixedly disposed between the two insulating partitions 30607.

[0029] Through the above technical solution, when the lower Latin 306 needs to be placed into the first Latin groove 304, the Latin base 30601 is pushed, and then the inner wall of the first Latin groove 304 squeezes the first ball 30605 and the second ball 30606, causing the first ball 30605 and the second ball 30606 to enter the slide groove 30602. The first spring 30609 contracts. Subsequently, when the Latin base 30601 moves between the first power connector 308 and the second power connector 309, the first ball 30605 and the second ball 30606 are no longer squeezed, and the first spring 30609 rebounds, causing the first ball 30605 and the second ball 30606 to enter the second power connector 309 and the first power connector 309 respectively. In section 08, the first ball 30605 and the second ball 30606 are used to fix the lower Latin 306 to a certain extent, preventing the lower Latin 306 from shifting due to slight vibration. The first power connector 308 and the second power connector 309 can be electrically connected through the first ball 30605, the second ball 30606, the first sliding post 30603, the second sliding post 30604 and the conductive post 30608. When it is necessary to remove the lower Latin 306 from the first Latin groove 304, the Latin base 30601 is pushed forcefully to remove the lower Latin 306 from the first Latin groove 304, and at the same time the electrical connection between the first power connector 308 and the second power connector 309 is released, saving energy.

[0030] like Figure 8As shown, the Latin structure 3012 has a first rotating column 30121 and a second rotating column 30122 rotatably disposed in the mold sleeve 303. A first gear 30123 and a second gear 30124 are fixedly disposed at the ends of the first rotating column 30121 and the second rotating column 30122 that are far apart from each other. A first parasol wheel 30125 and a second parasol wheel 30126 are fixedly disposed at the ends of the first rotating column 30121 and the second rotating column 30122 that are close to each other. A third parasol wheel 30127 is disposed between the first parasol wheel 30125 and the second parasol wheel 30126. A first rack 30128 and a second rack 30129 are slidably disposed in the mold sleeve 303.

[0031] Through the above technical solution, when the upper Latin groove 307 is inserted into the second Latin groove 305, the upper Latin groove 307 presses against the first rack 30128. The first rack 30128 drives the first gear 30123 to rotate. The first gear 30123 drives the first rotating column 30121 to rotate. The first rotating column 30121 drives the first parasol wheel 30125 to rotate. The first parasol wheel 30125 causes the second parasol wheel 30126 to rotate in the opposite direction through the third parasol wheel 30127. The second parasol wheel 30126 drives the second gear 30124 to rotate through the second rotating column 30122. Wheel 30124 moves the second rack 30129 to the lower Latin 306, and the second rack 30129 pushes the lower Latin 306 to move, so that the lower Latin 306 automatically disengages from the first Latin groove 304. When the lower Latin 306 is inserted into the first Latin groove 304, the lower Latin 306 squeezes the second rack 30129, and then the first rack 30128 pushes the upper Latin 307 to move, so that the upper Latin 307 automatically disengages from the second Latin groove 305. There is no need for the staff to manually disassemble the lower Latin 306 or the upper Latin 307, which facilitates subsequent forging operations.

[0032] like Figure 9 As shown, the first power connector 308 includes a connector base 30801, a groove 30802 is provided on the connector base 30801, a conductive sheet 30803 is fixedly provided in the groove 30802, a second slot 30804 is provided on the side of the conductive sheet 30803 near the lower lathe 306, a through groove 30805 is provided on the side of the groove 30802 near the medium frequency heating coil 3013, an electric wire 30806 is provided in the through groove 30805, an insulating baffle 30807 is slidably provided on the side of the connector base 30801 near the lower lathe 306, and a second spring 30808 is fixedly provided on the outer wall of the insulating baffle 30807 near the medium frequency heating coil 3013.

[0033] With the above technical solution, when the lower Latin strip 306 is placed into the first Latin strip groove 304, the lower Latin strip 306 presses against the insulating baffle 30807, the second spring 30808 contracts, releasing the sealing of the groove 30802 by the insulating baffle 30807. Then, the first ball 30605 and the second ball 30606 respectively enter the second slot 30804 on the second power connector 309 and the second slot 30804 on the first power connector 308. Then, the current can be transported to the designated location through the wire 30806. Simultaneously, the second slot 30804 and the first... The ball 30605 and the second ball 30606 fix the lower Latin 306 to a certain extent. When the upper Latin 307 enters the second Latin groove 305, the same principle applies. The first slot 3010 and the first ball 30605 and the second ball 30606 on the upper Latin 307 fix the upper Latin 307 to a certain extent. When the lower Latin 306 leaves the first Latin groove 304, the second spring 30808 rebounds, causing the insulating baffle 30807 to re-close the groove 30802, preventing accidental contact with the conductive sheet 30803.

[0034] A method for forging magnesium alloys includes the following steps: Step 1: Place the bar stock into the heating furnace and heat it to 250-450℃. Depending on the size of the bar stock, keep it at that temperature for more than 3 hours to ensure that the bar stock is thoroughly heated and the temperature is uniform. Step 2: Open the forging die 3 and spray the working cavity of the die with oil-based graphite lubricant; Step 3: Place the lower Latin groove 306 into the first Latin groove 304, and fix the mold base 301 and the mold sleeve 303. The intermediate frequency heating coil 3013 is automatically started, and the molding cavity 3015 is continuously heated through the intermediate frequency heating coil 3013. Step 4: The bar stock is placed into the forming cavity 3015 through the feed groove 3014, and then the bar stock is subjected to multiple extrusion forging processes. Step 5: After the bar stock is formed, the upper Latin groove 307 is placed into the second Latin groove 305, the upper template 302 is fixedly connected to the mold sleeve 303, the lower Latin groove 306 leaves the inside of the first Latin groove 304, and then the medium frequency heating coil 3013 automatically shuts off due to loss of power. Step 6: The hydraulic rod 9 and the upper template 302 drive the mold sleeve 303 to move, so that the mold sleeve 303 is separated from the mold base 301. The forming bar in the forming cavity 3015 automatically detaches under the action of gravity and falls onto the mold base 301. Then the forming bar is removed.

[0035] Working principle: This invention first opens the upper part of the forging die 3 using a hydraulic rod 9, then sprays an oil-based graphite lubricant to lubricate the working cavity of the forging die 3. Next, the lower and middle parts of the forging die 3 are fixedly connected. Then, the power supply 7 activates the internal components of the forging die 3 through the input wire 5, causing the inner cavity of the forging die 3 to continuously self-heat. The bar stock is then placed into the inner cavity of the forging die 3, and the hydraulic rod 9 is activated again. Through the hydraulic rod 9 and the forging components inside the forging die 3, the bar stock in the inner cavity of the forging die 3 is extruded and forged. The continuous self-heating of the inner cavity of the forging die 3 reduces the cooling rate of the bar stock, extending the forging time per cycle. This eliminates the need for reheating in the furnace, significantly shortening the complex forming process and reducing the forging time required.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A magnesium alloy forging device capable of continuous heating, comprising a base (1) and a plurality of support columns (2), characterized in that: The base (1) is provided with a forging mold (3) and a mounting groove (4). The forging mold (3) is provided with an input wire (5) and an output wire (6) on both sides. The mounting groove (4) is provided with a power supply (7). The forging mold (3) is connected to the power supply (7) through the input wire (5). The support column (2) is provided with a top cover (8) on one side above it. The top cover (8) is provided with a hydraulic rod (9). The forging die (3) includes a die base (301), an upper template (302) is provided on one side above the die base (301), a die sleeve (303) is provided between the upper template (302) and the die base (301), two first Latin grooves (304) are provided on the outer wall surface of the side of the die base (301) and the die sleeve (303) that are close to each other, and two second Latin grooves (305) are provided on the outer wall surface of the side of the upper template (302) and the die sleeve (303) that are close to each other. A lower Latin groove (306) and an upper Latin groove (307) are respectively provided in the first Latin groove (304) and the second Latin groove (305). A punch (3011) is provided on the upper template (302), and the punch (3011) is movably disposed in the feed groove (3014) located on the die sleeve (303). The feed groove (3014) and the die base (301) are closed to form a forming cavity (3015). A first power connector (308) is fixedly provided on the inner wall below the first Latin groove (304) on the mold base (301), and a second power connector (309) is fixedly provided on the inner wall above the first Latin groove (304) on the mold sleeve (303). A first slot (3010) is provided on the inner walls of the upper and lower sides of the second Latin groove (305). A Latin structure (3012) and a medium frequency heating coil (3013) are provided on the mold sleeve (303). The medium frequency heating coil (3013) surrounds the molding cavity (3015). The lower Latin (306) includes a Latin base (30601), on which a groove (30602) is provided. A first sliding post (30603) and a second sliding post (30604) are slidably arranged in the groove (30602). A first ball (30605) and a second ball (30606) are respectively fixed on the side of the first sliding post (30603) and the second sliding post (30604) that are far apart from each other. Two insulating partitions (30607) and a conductive post (30608) are provided between the first sliding post (30603) and the second sliding post (30604). A first spring (30609) is fixedly arranged between the two insulating partitions (30607).

2. The magnesium alloy forging equipment capable of continuous heating according to claim 1, characterized in that: The Latin structure (3012) has a first rotating column (30121) and a second rotating column (30122) rotatably arranged in the mold (303). A first gear (30123) and a second gear (30124) are fixedly arranged at the ends of the first rotating column (30121) and the second rotating column (30122) that are far apart from each other. A first parasol wheel (30125) and a second parasol wheel (30126) are fixedly arranged at the ends of the first rotating column (30121) and the second rotating column (30122) that are close to each other. A third parasol wheel (30127) is arranged between the first parasol wheel (30125) and the second parasol wheel (30126). A first rack (30128) and a second rack (30129) are slidably arranged in the mold (303).

3. The magnesium alloy forging equipment capable of continuous heating according to claim 2, characterized in that: The first power connector (308) includes a connector base (30801), a groove (30802) is provided on the connector base (30801), a conductive sheet (30803) is fixedly provided in the groove (30802), a second slot (30804) is provided on the side of the conductive sheet (30803) near the lower lathe (306), a through groove (30805) is provided on the side of the groove (30802) near the medium frequency heating coil (3013), an electric wire (30806) is provided in the through groove (30805), an insulating baffle (30807) is slidably provided on the side of the connector base (30801) near the lower lathe (306), and a second spring (30808) is fixedly provided on the outer wall of the insulating baffle (30807) near the medium frequency heating coil (3013).

4. The magnesium alloy forging equipment capable of continuous heating according to claim 3, characterized in that: The Latin base (30601) and connector base (30801) are made of insulating material, the first sliding post (30603), the second sliding post (30604), the first bead (30605) and the second bead (30606) are made of conductive material, the two insulating partitions (30607) are fixedly connected to the first sliding post (30603) and the second sliding post (30604) respectively, and the conductive post (30608) passes through the insulating partitions (30607) at both ends and is slidably connected to the first sliding post (30603) and the second sliding post (30604); The conductive sheet (30803) is fixedly connected to the wire (30806). The first slot (3010) and the second slot (30804) are semi-circular. The wires (30806) of different first power connectors (308) are respectively connected to the input wire (5), the output wire (6) and the intermediate frequency heating coil (3013).

5. A magnesium alloy forging device capable of continuous heating according to claim 4, characterized in that: The first gear (30123) and the second gear (30124) mesh with the first rack (30128) and the second rack (30129) respectively. The third parachute wheel (30127) meshes with the first parachute wheel (30125) and the second parachute wheel (30126) on both sides respectively. The upper Latin (307) has the same structure as the lower Latin (306). The second power connector (309) has the same structure as the first power connector (308). The third parachute wheel (30127) is rotatably connected to the mold sleeve (303).

6. A method for forging magnesium alloys using the magnesium alloy forging equipment described in claim 5, characterized in that: Includes the following steps: Step 1: Place the bar stock into the heating furnace and heat it to 250-450℃. Depending on the size of the bar stock, keep it at that temperature for more than 3 hours to ensure that the bar stock is thoroughly heated and the temperature is uniform. Step 2: Open the forging mold (3) and spray the working cavity of the mold with oil-based graphite lubricant; Step 3: Place the lower Latin (306) into the first Latin groove (304), fix the mold base (301) and the mold sleeve (303) in place, and start the intermediate frequency heating coil (3013) automatically to continuously heat the molding cavity (3015). Step 4: The bar stock is placed into the forming cavity (3015) through the feed groove (3014), and then the bar stock is extruded and forged multiple times; Step 5: After the bar stock is formed, the upper Latin groove (307) is placed into the second Latin groove (305), the upper template (302) is fixedly connected to the mold sleeve (303), the lower Latin groove (306) leaves the inside of the first Latin groove (304), and then the medium frequency heating coil (3013) automatically shuts off due to loss of power; Step 6: Drive the mold sleeve (303) to move through the hydraulic rod (9) and the upper template (302), so that the mold sleeve (303) is separated from the mold base (301). The forming bar in the forming cavity (3015) automatically detaches under the action of gravity and falls onto the mold base (301). Then the forming bar is removed.

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