A metal raw material stamping and forming device

Abstract

The present invention relates to the technical field of metal stamping, and discloses a metal raw material stamping and forming device, which includes a base. One side of the top surface of the base is equipped with a lifting mechanism, the middle of the top surface of the base is equipped with a forming mechanism located at the bottom of the lifting mechanism, and the other side of the top surface of the base is equipped with a second socket; by providing a stamping component, a forming mechanism and a second socket, the present invention is beneficial to placing a metal material on the top surface of the pressure-bearing table. After the top end of the conveying component is pressed and moves downward, it is connected to the first socket and activates the cooler. The cooler cools and conveys the cold air to the cold air plate through the air delivery pipe. Then, the hydraulic component is started to drive the stamping component to extrude the metal. Subsequently, four processes of unified cooling - heating - cooling - power-off for metals with different hardnesses are realized. On the one hand, the pressure value provided by the hydraulic mechanism is reduced, and the damage to the bottom of the extrusion block is relatively serious. On the other hand, the stamping and forming effect is better and the economy is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of metal stamping, and more particularly to a metal raw material stamping and forming device. Background Art

[0002] The stamping process utilizes the power of a traditional or special stamping machine to deform and transform a sheet within a mold to achieve a specific shape, size, and performance, thereby achieving the purpose of high efficiency, high operation, and easy mechanization and automation.

[0003] Existing stamping equipment mainly consists of a hydraulic mechanism, an extrusion block, a forming mold, and a working platform. Among them, by controlling the hydraulic mechanism to drive the extrusion block downward into the forming mold containing metal materials for stamping. Since a specific closed cavity will be formed after the bottom of the extrusion block fits with the top of the forming mold, the metal material is then shaped into the same specific shape as the inner cavity of the mold. However, in the existing metal stamping and forming process, only the hydraulic mechanism provides the downward pressure for the extrusion block. For relatively hard metals, on the one hand, the hydraulic mechanism needs to provide a large amount of pressure, and on the other hand, the damage to the bottom of the extrusion block is relatively serious; in addition, for metal materials that have been taken out of a hot furnace not long ago and have not fully hardened, when they have not come into contact with the stamping block, the edges of the metal materials will extend outward due to surface tension, so the stamping and forming effect of the extrusion block on them is relatively poor.

[0004] Therefore, there is an urgent need for a new metal raw material stamping and forming device. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a metal raw material stamping and forming device to solve the problems existing in the above background art.

[0006] The present invention provides the following technical solution: A metal raw material stamping and forming device includes a base. On one side of the top surface of the base, a lifting mechanism is installed. In the middle of the top surface of the base, a forming mechanism located at the bottom of the lifting mechanism is installed. On the other side of the top surface of the base, a second socket is installed.

[0007] The lifting mechanism includes a column. On one side of the top of the column close to the forming mechanism, a hydraulic component is fixedly connected through a fixing rod. On one side of the bottom of the hydraulic component close to the column, a slider is fixedly connected. At the bottom end of the hydraulic component, a stamping component is fixedly installed.

[0008] The stamping assembly includes an outer shell, a cavity adapted to the forming die is provided at the bottom of the outer shell, a stamping die is installed on the inner wall of the cavity, a plurality of electric heating tubes are arranged in an equidistant ring on the stamping die, an input end of the electric heating tube is connected to an output end of a conductive plate installed on one side of the outer surface of the outer shell by telecommunication, an input end of the conductive plate is connected to a first plug installed at the bottom end of a push rod by telecommunication through a first transmission line, and an N-pole magnet is fixedly installed on the outer surface of the bottom of the push rod by a fixing ring;

[0009] The forming mechanism includes a pressure platform, a conveying assembly is installed in the middle of the bottom surface of the pressure platform, the bottom of the conveying assembly is movably connected to a refrigerator connected to the top surface of the base, the cold outlet of the refrigerator is fixedly connected to the cold air plate connected to the top surface of the pressure platform through an air supply pipe, and the top surface of the cold air plate is provided with a first socket located directly below the conveying assembly.

[0010] Preferably, the installation position of the fixing ring and the N-pole magnet is determined by the descending height of the stamping assembly and the position of the transmission assembly, that is, when the outer shell descends to the top surface of the pressure platform, the height of the fixing ring and the N-pole magnet is exactly flush with the transmission assembly, and at this time the first plug is just inserted into the top of the second socket.

[0011] Preferably, 2 / 3 of the bottom of the first transmission line is buried inside the push rod, and one end of the top of the push rod is fixedly mounted on the outer surface of the outer shell.

[0012] Preferably, the stamping die is made of tungsten alloy so as to conduct heat while keeping the temperature below its own melting point.

[0013] Preferably, the transmission component includes an S-pole magnet, the outer surface of the bottom end of the S-pole magnet is fixedly connected to the bottom end of the spring through a fixing plate, the top of the spring is fixedly connected to the bottom surface of the pressure platform, a second plug is fixedly connected to the bottom surface of the fixing plate, a second power transmission line fixedly connected to the input end of the second plug is buried inside the S-pole magnet, and the end of the second power transmission line is set as a power supply.

[0014] Preferably, an opening adapted to the top of the S-pole magnet is provided in the middle of the pressure platform.

[0015] Preferably, when the top end of the S-pole magnet is not subjected to pressure from metal materials, the top of the S-pole magnet exceeds the horizontal line of the top surface of the pressure platform and its bottom end does not contact the first socket; when the top end of the S-pole magnet is subjected to pressure, the top end of the spring is flush with the pressure platform and its bottom end enters the conductive slide groove opened at the top of the first socket.

[0016] Preferably, the hydraulic component includes a hydraulic cylinder, a hydraulic rod and a fixing block. Two ends of the fixing rod are fixedly connected to the column and the hydraulic cylinder respectively. The bottom end of the hydraulic cylinder is fixedly connected to the hydraulic rod. The movable end at the bottom of the hydraulic rod is fixedly connected to the slider and the stamping component respectively through the fixing block.

[0017] Preferably, the method includes the following steps:

[0018] S1. Cooling stage: Place the metal material on the top surface of the pressure-bearing platform. The top end of the conveying component installed in the middle of the pressure-bearing platform moves downward under the pressure of the metal material. Then, the bottom end of the conveying component is connected to the first socket to form a path and activate the refrigerator. The refrigerator cools and conveys the cold air to the cold air plate through the air delivery pipe. The cold air output inside the cold air plate cools the metal surface.

[0019] S2. Heating process: Start the hydraulic component and drive the connected stamping component to extrude the metal material. During the downward movement of the stamping component, the N-pole magnet bound to the outer surface of the push rod by the fixing ring moves from top to bottom, and then gradually approaches the conveying component and attracts it to the outside until the first plug connected to the bottom of the push rod is inserted into the second socket. The conveying component is completely offset from the first socket under the magnetic attraction of the N-pole magnet. Then, the refrigerator is in an open circuit state and does not work, and at the same time, the electric heating tube is in a closed circuit state and starts to heat the metal material.

[0020] S3. Cooling stage: After heating and pressing into shape, the hydraulic component drives the stamping component to lift up. That is, the N-pole magnet gradually moves away from the conveying component from bottom to top. The conveying component not affected by magnetic attraction is reset under the elastic force of the spring. Then, the second plug moves to the chute at the top of the first socket again. Then, the refrigerator is in a closed circuit state and works to cool again.

[0021] S4. Power-off stage: Take out the formed object from the platform on the top surface of the pressure-bearing platform. The top end of the S-pole magnet is not stressed and moves upward to reset under the elastic force of the spring. At this time, the second plug disengages from the chute at the top of the first socket, and the power is automatically cut off. The technical effects and advantages of the present invention:

[0022] 1. The present invention is provided with a stamping assembly, a forming mechanism and a second socket, which is conducive to placing a metal material on the top surface of the pressure-bearing table. After the top end of the conveying assembly is pressed and moves downward, it is connected to the first socket and activates the cooler. The cooler cools the air, and the cold air is conveyed to the cold air plate through the air delivery pipe. The cold air plate outputs cold air to cool the metal surface. Then, the hydraulic assembly is started to drive the stamping assembly to extrude the metal. During the downward movement of the stamping assembly, the N-pole magnet will gradually approach the conveying assembly and attract it outward until the first plug is inserted into the second socket, and the conveying assembly completely deviates from the first socket. At this time, the cooler does not work, while the electric heating tube is energized and starts to heat the metal. After heating and pressurizing to form, the hydraulic assembly drives the stamping assembly to move upward, and the conveying assembly is further reset without being affected by the magnetic attraction. Then, the cooler is energized and works again to cool, thus realizing four processes of unified cooling - heating - cooling - power-off for metals with different hardnesses. On the one hand, the pressure value provided by the hydraulic mechanism is reduced, and the damage to the bottom of the extrusion block is relatively small. On the other hand, the stamping and forming effect is better and the economy is higher. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a partial sectional schematic diagram of the overall structure of the present invention.

[0025] Figure 3 It is a schematic diagram of the structure of the stamping assembly of the present invention.

[0026] Figure 4 It is a schematic diagram of the structure of A of the present invention.

[0027] Figure 5 It is a schematic diagram of the structure of the forming mechanism of the present invention.

[0028] Figure 6 It is a schematic diagram of the structure of the conveying assembly of the present invention.

[0029] The reference numerals are: 1, base; 2, lifting mechanism; 201, column; 202, fixed rod; 203, hydraulic component; 2031, hydraulic cylinder; 2032, hydraulic rod; 2033, fixed block; 204, slider; 205, stamping component; 2051, outer housing; 2052, stamping die; 2053, electric heating tube; 2054, conductive plate; 2055, first power line; 2056, push rod; 2057, fixed ring; 2058, N - pole magnet; 2059, first plug; 3, forming mechanism; 301, bearing platform; 302, conveying component; 3021, S - pole magnet; 3022, spring; 3023, fixed plate; 3024, second plug; 3025, second power line; 303, cooler; 304, gas pipeline; 305, cold air plate; 306, first socket; 4, second socket. Detailed implementation manners

[0030] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. In addition, the forms of each structure described in the following implementation manners are only examples. A metal raw material stamping and forming device related to the present invention is not limited to the structures described in the following implementation manners. All other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] Referring to Figure 1 , the present invention provides a metal raw material stamping and forming device, including a base 1. A lifting mechanism 2 is installed on one side of the top surface of the base 1, a forming mechanism 3 located at the bottom of the lifting mechanism 2 is installed in the middle of the top surface of the base 1, and a second socket 4 is installed on the other side of the top surface of the base 1.

[0032] In this embodiment, it should be specifically noted that the lifting mechanism 2, the forming mechanism 3, and the second socket 4 are relatively independently arranged and there is no contact between the three when the device is not working.

[0033] Referring to Figure 2 , the lifting mechanism 2 includes a column 201. A hydraulic component 203 is fixedly connected to one side of the top of the column 201 close to the forming mechanism 3 through a fixed rod 202. A slider 204 is fixedly connected to one side of the bottom of the hydraulic component 203 close to the column 201, and a stamping component 205 is fixedly installed at the bottom end of the hydraulic component 203;

[0034] The hydraulic component 203 includes a hydraulic cylinder 2031, a hydraulic rod 2032, and a fixed block 2033. The two ends of the fixed rod 202 are respectively fixedly connected to the column 201 and the hydraulic cylinder 2031. The bottom end of the hydraulic cylinder 2031 is fixedly connected to the hydraulic rod 2032. The movable end at the bottom of the hydraulic rod 2032 is fixedly connected to the slider 204 and the stamping component 205 respectively through the fixed block 2033.

[0035] In this embodiment, it should be specifically noted that a groove adapted to one side of the outer surface of the slider 204 is provided on one side of the column 201 close to the hydraulic component 203, thereby improving the stability of the fixing block 2033.

[0036] Refer to Figure 3 and Figure 5 As shown in [relevant figure numbers], the stamping component 205 includes a housing 2051. A cavity adapted to the forming die is provided at the bottom of the housing 2051. A stamping die 2052 is installed on the inner wall of the cavity. A plurality of electric heating tubes 2053 are arranged in an equidistant annular pattern around the stamping die 2052. The input end of the electric heating tube 2053 is electrically connected to the output end of a conductive plate 2054 installed on one side of the outer surface of the housing 2051. The input end of the conductive plate 2054 is electrically connected to the output end of a first plug 2059 installed at the bottom end of a push rod 2056 through a first transmission line 2055. An N - pole magnet 2058 is fixedly installed on the outer surface of the bottom of the push rod 2056 through a fixing ring 2057.

[0037] In this embodiment, it should be specifically noted that the installation positions of the fixing ring 2057 and the N - pole magnet 2058 are determined by the descending height of the stamping component 205 and the position of the conveying component 302. That is, when the housing 2051 descends to the top surface of the pressure - bearing platform 301, the heights of the fixing ring 2057 and the N - pole magnet 2058 are exactly flush with the conveying component 302, and at this time, the first plug 2059 just inserts into the top of the second socket 4;

[0038] The input end of the second socket 4 is externally connected to a power supply through a wire;

[0039] Two - thirds of the bottom of the first transmission line 2055 is buried inside the push rod 2056, and one end of the top of the push rod 2056 is fixedly installed on the outer surface of the housing 2051. Thus, the push rod 2056 serves to protect the first transmission line 2055 and push the first plug 2059 to the second socket 4.

[0040] The stamping die 2052 is made of tungsten alloy material, aiming to conduct heat while the temperature does not reach its own melting point.

[0041] Refer to Figure 5-6 As shown in [relevant figure numbers], the forming mechanism 3 includes a pressure - bearing platform 301. A conveying component 302 is installed in the middle of the bottom surface of the pressure - bearing platform 301. The bottom of the conveying component 302 is movably connected to a refrigerator 303 connected to the top surface of the base 1. The cold - air outlet of the refrigerator 303 is fixedly connected to a cold - air plate 305 connected to the periphery of the top surface of the pressure - bearing platform 301 through an air delivery pipe 304. A first socket 306 located directly below the conveying component 302 is provided on the top surface of the cold - air plate 305;

[0042] The transmission component 302 includes an S - pole magnet 3021. The outer surface of the bottom end of the S - pole magnet 3021 is fixedly connected to the bottom end of a spring 3022 through a fixing plate 3023. The top end of the spring 3022 is fixedly connected to the bottom surface of the pressure - bearing platform 301. A second plug 3024 is fixedly connected to the bottom surface of the fixing plate 3023. A second power line 3025 fixedly connected to the input end of the second plug 3024 is embedded inside the S - pole magnet 3021, and the end of the second power line 3025 is set as a power supply.

[0043] In this embodiment, it should be specifically noted that an opening adapted to the top end of the S - pole magnet 3021 is provided in the middle of the pressure - bearing platform 301. Thus, when the S - pole magnet 3021 is attracted by magnetic force, it can tilt along this opening.

[0044] When no pressure from the metal material is applied to the top end of the S - pole magnet 3021, the top of the S - pole magnet 3021 extends beyond the horizontal line of the top surface of the pressure - bearing platform 301 and its bottom end does not contact the first socket 306. When the top end of the S - pole magnet 3021 is pressed, the top end of the spring 3022 is flush with the pressure - bearing platform 301 and its bottom end enters the conductive sliding groove opened at the top of the first socket 306.

[0045] The working principle of the present invention:

[0046] The metal raw material stamping and forming equipment provided by the present invention undergoes four stages of cooling - heating - cooling - power - off during the stamping and forming process. The specific method is as follows:

[0047] S1. Cooling stage: Place the metal material on the top surface of the pressure - bearing platform 301. The top end of the transmission component 302 installed in the middle of the pressure - bearing platform 301 moves downward under the pressure of the metal material. Then, the bottom end of the transmission component 302 is connected to the first socket 306 to form a circuit and activate the cooler 303. The cooler 303 cools and transports the cold air through the air delivery pipe 304 to the cold air plate 305, and the cold air output from the inside of the cold air plate 305 cools the metal surface.

[0048] Among them, the specific steps for the transmission component 302 to move downward under pressure are as follows: When the top end of the S - pole magnet 3021 is pressed, the bottom end of the spring 3022 connected by the fixing plate 3023 fixedly sleeved with it is pulled downward. At this time, the top end of the spring 3022 is fixedly connected to the bottom surface of the pressure - bearing platform 301. Until the metal material is completely placed on the top surface of the pressure - bearing platform 301, the second plug 3024 connected to the bottom end of the S - pole magnet 3021 just inserts into the first socket 306. At this time, the second power line 3025, the second plug 3024, the first socket 306, and the cooler 303 form a circuit, and the cooler 303 starts to cool.

[0049] S2. Heating process: Start the hydraulic component 203 and drive the stamping component 205 connected thereto to extrude the metal material. During the downward movement of the stamping component 205, the N - pole magnet 2058 bound to the outer surface of the push rod 2056 by the fixing ring 2057 moves downward from top to bottom, and then will gradually approach the conveying component 302 and attract it outward until the first plug 2059 connected to the bottom of the push rod 2056 is inserted into the second socket 4. The conveying component 302 is completely deflected out of the first socket 306 under the magnetic attraction of the N - pole magnet 2058. Then the cooler 303 is in an open circuit state and does not work, while the electric heating tube 2053 is in a closed circuit state and starts to heat the metal material;

[0050] Among them, the specific steps for the conveying component 302 to be deflected by the magnetic attraction of the N - pole magnet 2058 are as follows: The S - pole magnet 3021 is deflected in the direction of the N - pole magnet 2058 under the magnetic attraction of the N - pole magnet 2058. Then the S - pole magnet 3021 will drive the bottom end of the spring 3022 and the second plug 3024 connected thereto to deflect synchronously in the direction close to the N - pole magnet 2058 through the fixing plate 3023. Then the second plug 3024 disengages from the chute at the top of the first socket 306. At this time, the cooler 303 is in an open circuit state, while at this time, the electric heating tube 2053, the conductive plate 2054, the first transmission line 2055, the first plug 2059 and the second socket 4 form a closed circuit, and the electric heating tube 2053 starts to heat;

[0051] S3. Cooling stage: After heating and pressure - forming, the hydraulic component 203 drives the stamping component 205 to move up. That is, the N - pole magnet 2058 gradually moves away from the conveying component 302 from bottom to top. The conveying component 302 not affected by magnetic attraction is reset under the elastic force of the spring 3022. Then the second plug 3024 moves to the chute at the top of the first socket 306 again. Then the cooler 303 is in a closed circuit and starts to work for cooling again;

[0052] S4. Power - off stage: Take out the formed object from the platform on the top surface of the pressure - bearing table 301. The top end of the S - pole magnet 3021 is not stressed and under the elastic force of the spring 3022, the bottom end of the spring 3022 drives the connected S - pole magnet 3021 to move upward for reset. At this time, the second plug 3024 disengages from the chute at the top of the first socket 306, and the power is automatically cut off.

[0053] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", "connected" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, and can also be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0054] Secondly: In the accompanying drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference may be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention may be combined with each other;

[0055] Finally: The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A metal raw material stamping and forming device, comprising a base (1), characterized in that: On one side of the top surface of the base (1), a lifting mechanism (2) is installed. In the middle of the top surface of the base (1), a forming mechanism (3) located at the bottom of the lifting mechanism (2) is installed. On the other side of the top surface of the base (1), a second socket (4) is installed. The lifting mechanism (2) includes a column (201). On one side of the top of the column (201) close to the forming mechanism (3), a hydraulic component (203) is fixedly connected through a fixing rod (202). On one side of the bottom of the hydraulic component (203) close to the column (201), a slider (204) is fixedly connected. At the bottom end of the hydraulic component (203), a stamping component (205) is fixedly installed. The stamping component (205) includes an outer shell (2051). At the bottom of the outer shell (2051), a cavity adapted to the forming die is provided. On the inner wall of the cavity, a stamping die (2052) is installed. A number of electric heating tubes (2053) are arranged in an equidistant annular pattern on the stamping die (2052). The input end of the electric heating tube (2053) is electrically connected to the output end of a conductive plate (2054) installed on one side of the outer surface of the outer shell (2051). The input end of the conductive plate (2054) is electrically connected to a first plug (2059) installed at the bottom end of a push rod (2056) through a first power line (2055). On the outer surface of the bottom of the push rod (2056), an N-pole magnet (2058) is fixedly installed through a fixing ring (2057). The forming mechanism (3) includes a bearing platform (301). In the middle of the bottom surface of the bearing platform (301), a conveying component (302) is installed. The bottom of the conveying component (302) is movably connected to a cooler (303) connected to the top surface of the base (1). The cold air outlet of the cooler (303) is fixedly connected to a cold air plate (305) connected to the periphery of the top surface of the bearing platform (301) through an air delivery pipe (304). On the top surface of the cold air plate (305), a first socket (306) located directly below the conveying component (302) is provided. The conveying component (302) includes an S-pole magnet (3021). On the outer surface of the bottom end of the S-pole magnet (3021), the bottom end of a spring (3022) is fixedly connected through a fixing plate (3023). The top end of the spring (3022) is fixedly connected to the bottom surface of the bearing platform (301). On the bottom surface of the fixing plate (3023), a second plug (3024) is fixedly connected. Inside the S-pole magnet (3021), a second power line (3025) fixedly connected to the input end of the second plug (3024) is buried. The end of the second power line (3025) is set as a power supply. In the middle of the bearing platform (301), an opening adapted to the top end of the S-pole magnet (3021) is provided. When the top of the S - pole magnet (3021) is not under the pressure of the metal material, the top of the S - pole magnet (3021) extends beyond the horizontal line of the top surface of the pressure - bearing table (301) and its bottom end does not contact the first socket (306). When the top of the S - pole magnet (3021) is pressurized, the top of the spring (3022) is flush with the pressure - bearing table (301) and its bottom end enters the conductive sliding groove opened at the top of the first socket (306).

2. A metal raw material stamping and forming device according to claim 1, characterized in that: The installation positions of the fixing ring (2057) and the N - pole magnet (2058) are determined by the descending height of the stamping assembly (205) and the position of the conveying assembly (302). That is, when the outer shell (2051) descends to the top surface of the pressure - bearing table (301), the heights of the fixing ring (2057) and the N - pole magnet (2058) are exactly flush with the conveying assembly (302), and at this time, the first plug (2059) just inserts into the top of the second socket (4).

3. A metal raw material stamping and forming device according to claim 1, characterized in that: 2 / 3 of the bottom of the first power line (2055) is buried inside the push rod (2056), and one end of the top of the push rod (2056) is fixedly installed on the outer surface of the outer shell (2051).

4. A metal raw material stamping and forming device according to claim 1, characterized in that: The stamping die (2052) is made of tungsten alloy material, aiming at conducting heat while the temperature does not reach its own melting point.

5. A metal raw material stamping and forming device according to claim 1, characterized in that: The hydraulic component (203) includes a hydraulic cylinder (2031), a hydraulic rod (2032) and a fixing block (2033). Both ends of the fixing rod (202) are fixedly connected to the column (201) and the hydraulic cylinder (2031) respectively. The bottom end of the hydraulic cylinder (2031) is fixedly connected to the hydraulic rod (2032). The movable end at the bottom of the hydraulic rod (2032) is fixedly connected to the slider (204) and the stamping assembly (205) respectively through the fixing block (2033).

6. A metal raw material stamping and forming device according to claim 1, characterized in that, Including the following steps: S1. Cooling stage: Place the metal material on the top surface of the pressure - bearing table (301). The top of the conveying assembly (302) installed in the middle of the pressure - bearing table (301) moves downward under the pressure of the metal material. Then the bottom end of the conveying assembly (302) is connected to the first socket (306) to form a path and activate the refrigerator (303). The refrigerator (303) refrigerates and conveys the cold air through the air delivery pipe (304) to the cold air plate (305). The cold air is output from the inside of the cold air plate (305) to cool the metal surface; S2. Heating process: Start the hydraulic component (203) and drive the stamping component (205) connected thereto to extrude the metal material. During the downward movement of the stamping component (205), the N - pole magnet (2058) bound to the outer surface of the push rod (2056) by the fixing ring (2057) moves from top to bottom, and then gradually approaches the conveying component (302) and attracts it outward until the first plug (2059) connected to the bottom of the push rod (2056) is inserted into the second socket (4). The conveying component (302) is completely offset from the first socket (306) under the magnetic attraction of the N - pole magnet (2058). Then the cooler (303) is in an open circuit state and does not work, while the electric heating tube (2053) is in a closed circuit state and starts to heat the metal material; S3. Cooling stage: After heating and pressure - forming, the hydraulic component (203) drives the stamping component (205) to move upward. That is, the N - pole magnet (2058) gradually moves away from the conveying component (302) from bottom to top. The conveying component (302) not affected by magnetic attraction is reset under the elastic force of the spring (3022). Then the second plug (3024) moves to the chute at the top of the first socket (306) again. Then the cooler (303) is in a closed circuit and works to refrigerate again; S4. Power - off stage: Take out the formed object from the platform on the top surface of the pressure - bearing table (301). The top of the S - pole magnet (3021) is not stressed and under the elastic force of the spring (3022), the bottom end of the spring (3022) drives the connected S - pole magnet (3021) to move upward and reset. At this time, the second plug (3024) disengages from the chute at the top of the first socket (306), and the power is automatically cut off.

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