A magnesium alloy casting forming and cooling device

Abstract

The present invention provides a magnesium alloy casting forming and cooling device, which relates to the technical field of casting process equipment. It includes a cooling pool, an installation frame is fixed on the top of the cooling pool, a chain conveyor belt is arranged on one side of the installation frame, a number of clamping mechanisms are drivingly arranged at the bottom of the chain conveyor belt, a cold air mechanism is arranged on the cooling pool, a water circulation frame is arranged on the top of the cooling pool on the side far from the cold air mechanism, and a placement frame is arranged on the top of the cooling pool. When the limiting block slides to the end of the inner wall of the loop-shaped limiting frame, the second bevel gear meshes and cooperates with the first bevel gear, and the third bevel gear meshes and cooperates with the fourth bevel gear. The started chain conveyor belt drives the filtering component to move along the threaded rod towards the low filter plate side, so that the whole filtering component moves to the other side of the cooling pool, reducing the difficulty of cleaning the metal debris in the cooling pool, being able to concentrate the water impurities in the cooling pool in the filtering component, and reducing the power output during the process of collecting impurities.

Description

Technical Field

[0001] The present invention relates to the technical field of foundry process equipment, and particularly to a magnesium alloy casting forming and cooling device. Background Art

[0002] Magnesium alloy castings are a kind of lightweight and high-strength alloy material. This alloy has a low density, high specific strength, good machining performance and casting performance, and is widely used in fields such as automotive parts and aerospace components. Existing castings are placed in a casting seat and cooled by air cooling or water cooling.

[0003] Cooling the castings in a cooling pool will generate metal debris. The cooling pools used in existing cooling devices are relatively large in size, and it is very difficult to clean the metal debris in the cooling pool. Extra power or multiple labors are required to clean the cooling pool, increasing the power output during the process of collecting impurities. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a magnesium alloy casting forming and cooling device, which solves the problem that it is very difficult to clean the metal debris in the cooling pool of the existing cooling device, and extra power or multiple labors are required to clean the cooling pool.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the present invention is realized through the following technical solutions: A magnesium alloy casting forming and cooling device, including a cooling pool, an installation frame is fixed on the top of the cooling pool, a chain conveyor belt is arranged on one side of the installation frame, a plurality of clamping mechanisms are drivingly arranged at the bottom of the chain conveyor belt, a cold air mechanism is arranged on the cooling pool, a water circulation frame is arranged on the top of the cooling pool on the side far from the cold air mechanism, and a placement frame is arranged on the top of the cooling pool;

[0008] A main driving rod is arranged on the chain conveyor belt, and a first bevel gear is fixedly connected to one end of the main driving rod;

[0009] A circular limiting frame is arranged on the installation frame, a limiting block is slidably fitted in the circular limiting frame, a vertical rotating rod is rotatably fitted on the limiting block, a second bevel gear meshing with the first bevel gear is fixedly connected to the top of the vertical rotating rod, and a third bevel gear is fixedly connected to the bottom of the vertical rotating rod; A cylinder is fixedly installed on one side of the circular limiting frame, the telescopic end of the cylinder is fixedly connected to the limiting block, a limiting baffle is fixed on one side surface of the circular limiting frame, and a horizontal rod slidably fitted with the limiting baffle is fixed on the limiting block;

[0010] A threaded rod is rotatably arranged on the cooling pool. A traffic-limiting rod is arranged at the top of the cooling pool. A filtering component is arranged in cooperation between the threaded rod and the traffic-limiting rod. One end of the threaded rod is fixedly connected with a fourth bevel gear that meshes with the third bevel gear.

[0011] Preferably, the clamping mechanism includes a support frame. A U-shaped frame is slidably fitted on the support frame. Rack teeth are arranged on both outer sides of the U-shaped frame facing each other. A sliding rod is fixed on one side of one U-shaped frame.

[0012] A sliding groove that is slidably fitted with the sliding rod is formed through one side of the mounting frame.

[0013] Two gears are rotatably fitted on one side of the support frame. The two gears are respectively meshed with the two rack teeth. Clamping plates are fixed on one side of each of the two gears. A clamping block is fixed at one end of the clamping plate.

[0014] Preferably, the sliding groove is divided into a first upward groove, a first straight groove, a first downward groove, a second straight groove, a second upward groove, a third straight groove, and a second downward groove.

[0015] The first upward groove and the first straight groove are connected by bolts. The third straight groove and the second downward groove are connected by bolts.

[0016] Preferably, the cold air mechanism includes a rectangular outer frame. An arc-shaped plate is fixed on the inner wall of the rectangular outer frame. A heat dissipation fan is arranged on one side of the rectangular outer frame. An air outlet is formed on the arc-shaped plate opposite to the side of the heat dissipation fan.

[0017] Preferably, a water pipe is communicated with one side of the water circulation frame. The other end of the water pipe is communicated with the inside of the cooling pool.

[0018] Preferably, the filtering component includes a high-filtering plate and a low-filtering plate. A threaded sleeve and a limiting sleeve are fixed on the top of the high-filtering plate. The threaded sleeve is in threaded rotational cooperation with the threaded rod. The limiting sleeve is slidably fitted with the traffic-limiting rod. Annular clamping grooves are formed on the circumferential sides of the threaded sleeve and the limiting sleeve.

[0019] Two J-shaped plates are fixed on the top of the low-filtering plate. The two J-shaped plates are respectively clamped and fitted with the two annular clamping grooves. A low surrounding frame plate is fixed at the bottom position of the side of the low-filtering plate close to the high-filtering plate. A U-shaped pushing plate is fixed on the top of the low surrounding frame plate. Two clamping bars are fixed on one side surface of the U-shaped pushing plate. The two clamping bars are respectively clamped and fitted with one side surface of the high-filtering plate.

[0020] Preferably, two elastic springs are fixed on one side surface of each of the two clamping bars. One end of each of the two elastic springs is fixedly connected with a clamping block.

[0021] Two clamping slots are formed on the high-filtering plate. The two clamping slots are respectively clamped and fitted with the two clamping blocks.

[0022] (III) Beneficial effects

[0023] The present invention provides a forming and cooling device for magnesium alloy castings, which has the following beneficial effects:

[0024] 1. In the present invention, when the limiting block slides to the end of the inner wall of the rectangular limiting frame, the second bevel gear fixed to the top of the vertical rotating rod meshes with the first bevel gear fixed to one end of the main transmission rod, and the third bevel gear fixed to the bottom of the vertical rotating rod meshes with the fourth bevel gear fixed to one end of the threaded rod. The started chain conveyor drives the filtering component cooperating between the threaded rod and the limiting rod to move along the threaded rod towards the low filter plate side, so that the whole filtering component moves to the other side of the cooling pool, reducing the difficulty of cleaning the metal debris in the cooling pool, enabling the water impurities in the cooling pool to be concentrated in the filtering component, and reducing the power output during the process of collecting impurities.

[0025] 2. In the present invention, by adjusting the angle between the first upward groove and the first straight groove and the angle between the third straight groove and the second downward groove, the height of the sliding rod fixed to one side of the U-shaped frame sliding up and down along the support frame is adjusted, ensuring that the sliding rods on all clamping mechanisms complete the clamping of the casting when sliding from the first upward groove to the first straight groove, and ensuring that the sliding rods on the clamping mechanism complete the release of the casting when sliding from the third straight groove to the second downward groove, realizing the clamping of the casting in the assembly line without external force transportation.

[0026] 3. In the present invention, when the clamping mechanism moves between the cold air mechanism and the water circulation frame, the sliding rod on the clamping mechanism will slide into the second upward groove from the second straight groove. The casting gradually emerging from the water is cooled and the water stains are blown off by the wind blown by the cold air mechanism. In addition, the water falling from the water circulation frame can also be cooled by blowing, and the setting between the water circulation frame and the cooling pool also realizes the cyclic cooling of water.

[0027] 4. In the present invention, the two J-shaped plates fixed to the top of the low filter plate are respectively engaged with the annular card slots opened on the circumferential sides of the threaded sleeve and the limiting sleeve, and the clamping blocks fixed to one end of the two elastic springs are respectively engaged with the two clamping slots opened on the high filter plate, realizing the clamping fit between the high filter plate and the low filter plate, which is convenient for cleaning the metal debris in the filtering component. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of a forming and cooling device for magnesium alloy castings according to the present invention;

[0029] Figure 2 is Figure 1 an enlarged schematic diagram of A in

[0030] Figure 3 is Figure 1Enlarged schematic diagram of C;

[0031] Figure 4 is Figure 1 Enlarged schematic diagram of B in;

[0032] Figure 5 Front view of the cooling pool;

[0033] Figure 6 Structural schematic diagram of the clamping mechanism;

[0034] Figure 7 Structural schematic diagram of the cold air mechanism;

[0035] Figure 8 Structural schematic diagram of the filtering component;

[0036] Figure 9 is Figure 8 Enlarged schematic diagram of D in;

[0037] Figure 10 Another perspective schematic diagram of the filtering component;

[0038] Figure 11 is Figure 10 Enlarged schematic diagram of E in;

[0039] Figure 12 is Figure 11 Enlarged schematic diagram of F in.

[0040] Among them, 1, cooling pool; 2, mounting frame; 3, transmission mechanism; 4, clamping mechanism; 5, cold air mechanism; 6, water circulation frame; 7, filtering component; 8, placement frame; 101, threaded rod; 102, traffic limiting rod; 401, support frame; 402, U-shaped frame; 403, rack; 404, sliding rod; 405, gear; 406, clamping plate; 407, clamping block; 21, sliding groove; 211, first upward groove; 212, first straight groove; 213, first downward groove; 214, second straight groove; 215, second upward groove; 216, third straight groove; 217, second downward groove; 501, rectangular outer frame; 502, arc plate; 503, cooling fan; 504, air outlet; 601, water pipe; 71, high filter plate; 711, threaded sleeve; 712, limiting sleeve; 713, annular card slot; 714, clamping slot; 72, low filter plate; 721, J-shaped plate; 722, low surrounding frame plate; 723, U-shaped push plate; 724, card strip; 7241, elastic spring; 7242, card block. Detailed implementation method

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] As Figures 1 - 12 shown, the present invention provides a magnesium alloy casting forming and cooling device, which includes a cooling pool 1. An installation frame 2 is fixed on the top of the cooling pool 1. A chain conveyor belt 3 is arranged on one side of the installation frame 2. A plurality of clamping mechanisms 4 are drivingly arranged at the bottom of the chain conveyor belt 3. A cold air mechanism 5 is arranged on the cooling pool 1. A water circulation frame 6 is arranged on the top of the cooling pool 1 on the side far from the cold air mechanism 5. A placement frame 8 is arranged on the top of the cooling pool 1. A main transmission rod 301 is arranged on the chain conveyor belt 3. One end of the main transmission rod 301 is fixedly connected with a first bevel gear 302. A U-shaped limiting frame 22 is arranged on the installation frame 2. A limiting block 221 is slidably fitted in the U-shaped limiting frame 22. A vertical rotating rod 222 is rotatably fitted on the limiting block 221. A second bevel gear 223 meshing with the first bevel gear 302 is fixed on the top of the vertical rotating rod 222. A third bevel gear 224 is fixed on the bottom of the vertical rotating rod 222. A cylinder 225 is fixedly installed on one side of the U-shaped limiting frame 22. The telescopic end of the cylinder 225 is fixedly connected with the limiting block 221. A limiting baffle 226 is fixed on one side surface of the U-shaped limiting frame 22. A horizontal rod 227 slidably fitted with the limiting baffle 226 is fixed on the limiting block 221. A threaded rod 101 is rotatably arranged on the cooling pool 1. A limiting rod 102 is arranged on the top of the cooling pool 1. A filtering component 7 is fitted between the threaded rod 101 and the limiting rod 102. One end of the threaded rod 101 is fixedly connected with a fourth bevel gear 1011 meshing with the third bevel gear 224. The clamping mechanism 4 includes a support frame 401. A U-shaped frame 402 is slidably fitted on the support frame 401. Rack teeth 403 are arranged on the opposite outer side surfaces of the U-shaped frame 402. A sliding rod 404 is fixed on one side of a U-shaped frame 402. A sliding groove 21 slidably fitted with the sliding rod 404 is formed through one side of the installation frame 2. Two gears 405 are rotatably fitted on one side of the support frame 401. The two gears 405 are respectively meshed with the two rack teeth 403. Clamping plates 406 are fixed on one side of the two gears 405. A clamping block 407 is fixed at one end of the clamping plate 406.

[0043] Specifically, the sliding groove 21 is divided into a first upward groove 211, a first straight groove 212, a first downward groove 213, a second straight groove 214, a second upward groove 215, a third straight groove 216, and a second downward groove 217; the first upward groove 211 and the first straight groove 212 are connected by bolts, and the third straight groove 216 and the second downward groove 217 are connected by bolts. The cold air mechanism 5 includes a rectangular outer frame 501, an arc-shaped plate 502 is fixed on the inner wall of the rectangular outer frame 501, a heat dissipation fan 503 is arranged on one side of the rectangular outer frame 501, and an air outlet 504 is opened on the arc-shaped plate 502 on the side facing the heat dissipation fan 503.

[0044] Furthermore, a water pipe 601 is communicated with one side of the water circulation frame 6, and the other end of the water pipe 601 is communicated with the inside of the cooling pool 1. The filtering component 7 includes a high filtering plate 71 and a low filtering plate 72. A threaded sleeve 711 and a limit sleeve 712 are fixed on the top of the high filtering plate 71. The threaded sleeve 711 is in threaded rotational cooperation with the threaded rod 101, and the limit sleeve 712 is in sliding cooperation with the limit rod 102. Annular clamping grooves 713 are formed on the circumferential sides of the threaded sleeve 711 and the limit sleeve 712; two J-shaped plates 721 are fixed on the top of the low filtering plate 72, and the two J-shaped plates 721 are respectively clamped and matched with the two annular clamping grooves 713. A low surrounding frame plate 722 is fixed at the bottom position of the side of the low filtering plate 72 close to the high filtering plate 71, and a U-shaped pushing plate 723 is fixed on the top of the low surrounding frame plate 722. Two clamping strips 724 are fixed on one side surface of the U-shaped pushing plate 723, and the two clamping strips 724 are respectively clamped and matched with one side surface of the high filtering plate 71. Two elastic springs 7241 are fixed on one side surface of each of the two clamping strips 724, and a clamping block 7242 is fixed at one end of the two elastic springs 7241; two clamping grooves 714 are formed on the high filtering plate 71, and the two clamping grooves 714 are respectively clamped and matched with the two clamping blocks 7242.

[0045] The operation process of the present invention is as follows: Before using this cooling device, first adjust the angles between the first upward groove 211 and the first straight groove 212 and between the third straight groove 216 and the second downward groove 217. After adjustment, install bolts for fixation. The installation angles are such that when the clamping mechanism 4 connected to the bottom of the chain conveyor belt 3 slides along the sliding groove 21, from the first upward groove 211 to the first straight groove 212 and from the third straight groove 216 to the second downward groove 217, the height of the sliding rod 404 fixed on one side of the U-shaped frame 402 sliding up and down along the support frame 401 is adjusted, ensuring that the sliding rods 404 on all clamping mechanisms 4 complete the clamping of the casting when sliding from the first upward groove 211 to the first straight groove 212, and ensuring that the sliding rods 404 on the clamping mechanism 4 complete the release of the casting when sliding from the third straight groove 216 to the second downward groove 217. The clamping of castings of different sizes can be realized under the assembly line without external force transportation.

[0046] Among them, the distances between the first straight groove 212, the first downward groove 213, the second straight groove 214, the second upward groove 215, the third straight groove 216 and the chain conveyor belt 3 are always the same, ensuring that during the process of the clamping mechanism 4 being driven by the chain conveyor belt 3, the sliding rod 404 on the clamping mechanism 4 does not move relative to the clamping mechanism 4, avoiding over-tightening or over-loosening of the castings being clamped.

[0047] The specific process of using this cooling device is as follows: First, place the casting under the first upward groove 211, start the chain conveyor belt 3. When the sliding rod 404 on the clamping mechanism 4 slides along the first upward groove 211, the clamping of the casting is completed. Then, the sliding rod 404 on the clamping mechanism 4 continues to slide along the first straight groove 212 and the first downward groove 213 until the sliding rod 404 on the clamping mechanism 4 enters the second straight groove 214. At this time, the casting clamped at the bottom of the clamping mechanism 4 completely enters the cooling pool 1. At this time, the water in the cooling pool 1 cools the casting by means of water cooling. When the clamping mechanism 4 moves to the cold air mechanism 5 and the water circulation frame 6, the sliding rod 404 on the clamping mechanism 4 will slide from the second straight groove 214 into the second upward groove 215. The casting gradually emerging from the water is cooled and the water stains are blown off by the wind blown by the cold air mechanism 5. In addition, the water falling from the water circulation frame 6 can also be cooled by blowing. The setting between the water circulation frame 6 and the cooling pool 1 also realizes the cyclic cooling of water. Finally, when the sliding rod 404 on the clamping mechanism 4 slides from the third straight groove 216 into the second downward groove 217, the casting is released, and the casting falls on the placement rack 8.

[0048] When the casting enters the cooling pool 1, the metal chips adhering to its surface will fall off and enter the cooling pool 1. After using this cooling device for a period of time, by starting the air cylinder 225 fixedly installed on one side of the loop-shaped limiting frame 22, the limiting block 221 fixedly connected to the telescopic end of the air cylinder 225 slides along the inner wall of the loop-shaped limiting frame 22, so that the horizontal rod 227 fixed on the limiting block 221 gradually moves away from the limiting baffle 226 fixed to one side surface of the loop-shaped limiting frame 22. The sliding fit between the limiting block 221 and the loop-shaped limiting frame 22, and the sliding fit between the horizontal rod 227 and the limiting baffle 226 prevent the vertical rotating rod 222 from deflecting circumferentially, driving the vertical rotating rod 222 rotatably fitted on the limiting block 221 to move horizontally towards the filtering assembly 7 until the air cylinder 225 is closed after the limiting block 221 stops sliding on the inner wall of the loop-shaped limiting frame 22. At this time, the second bevel gear 223 fixed to the top of the vertical rotating rod 222 meshes with the first bevel gear 302 fixed to one end of the main transmission rod 301, and the third bevel gear 224 fixed to the bottom of the vertical rotating rod 222 meshes with the fourth bevel gear 1011 fixed to one end of the threaded rod 101. The main transmission rod 301 is connected to the rotating roller in the chain conveyor belt 3, and can drive the filtering assembly 7 that cooperates between the threaded rod 101 and the limiting rod 102 to move along the threaded rod 101 towards the low filter plate 72 through the chain conveyor belt 3 that transmits a number of clamping mechanisms 4, so that the whole filtering assembly 7 moves to the other side of the cooling pool 1, reducing the difficulty of cleaning the metal debris in the cooling pool 1, being able to concentrate the water impurities in the cooling pool 1 in the filtering assembly 7, and reducing the power output during the process of collecting impurities.

[0049] Metal iron chips will enter between the high filter plate 71 and the low filter plate 72. Pull up the U-shaped push plate 723 fixed to the top of the low surrounding frame plate 722, and the whole drives the low surrounding frame plate 722 fixed to the bottom of one side of the low filter plate 72 to move upward, so that the low surrounding frame plate 722 fixed to the bottom of one side of the low filter plate 72 filters and collects the metal impurities between the high filter plate 71 and the low filter plate 72. After cleaning the metal impurities in the taken-out low filter plate 72, the two clamping strips 724 on the low filter plate 72 are respectively clamped and fitted with one side surface of the high filter plate 71 until the two J-shaped plates 721 fixed to the top of the low filter plate 72 are respectively clamped and fitted with the annular clamping grooves 713 opened on the circumferential side surfaces of the threaded sleeve 711 and the limiting sleeve 712, and the clamping blocks 7242 fixed to one ends of the two elastic springs 7241 are respectively clamped and fitted with the two clamping grooves 714 opened on the high filter plate 71, realizing the clamping and fitting between the high filter plate 71 and the low filter plate 72, completing the assembly of the filtering assembly 7, and facilitating the cleaning of the metal debris in the filtering assembly 7.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnesium alloy casting forming and cooling device, characterized in that: It includes a cooling pool (1), on the top of the cooling pool (1) is fixed an installation frame (2), on one side of the installation frame (2) is arranged a chain conveyor belt (3), at the bottom of the chain conveyor belt (3) are drivingly arranged a number of clamping mechanisms (4), on the cooling pool (1) is arranged a cold air mechanism (5), on one side of the top of the cooling pool (1) away from the cold air mechanism (5) is arranged a water circulation frame (6), and on the top of the cooling pool (1) is arranged a placing rack (8); On the chain conveyor belt (3) is arranged a main driving rod (301), and at one end of the main driving rod (301) is fixedly connected a first bevel gear (302); On the installation frame (2) is arranged a U-shaped limiting frame (22), slidably fitted in the U-shaped limiting frame (22) is a limiting block (221), rotatably fitted on the limiting block (221) is a vertical rotating rod (222), at the top of the vertical rotating rod (222) is fixedly connected a second bevel gear (223) meshing with the first bevel gear (302), and at the bottom of the vertical rotating rod (222) is fixedly connected a third bevel gear (224); on one side of the U-shaped limiting frame (22) is fixedly installed a cylinder (225), the telescopic end of the cylinder (225) is fixedly connected with the limiting block (221), on one side surface of the U-shaped limiting frame (22) is fixedly arranged a limiting baffle (226), and on the limiting block (221) is fixedly arranged a horizontal rod (227) slidably fitted with the limiting baffle (226); On the cooling pool (1) is rotatably arranged a threaded rod (101), on the top of the cooling pool (1) is arranged a limiting rod (102), and between the threaded rod (101) and the limiting rod (102) is fitted a filtering component (7), and at one end of the threaded rod (101) is fixedly connected a fourth bevel gear (1011) meshing with the third bevel gear (224); The clamping mechanism (4) includes a support frame (401), slidably fitted on the support frame (401) is a U-shaped frame (402), on the opposite outer side surfaces of the U-shaped frame (402) are both arranged racks (403), and on one side of one U-shaped frame (402) is fixedly arranged a sliding rod (404); On one side of the installation frame (2) is penetrated and opened a sliding groove (21) slidably fitted with the sliding rod (404); On one side of the support frame (401) are rotatably fitted two gears (405), the two gears (405) are respectively meshed with the two racks (403), on one side of each of the two gears (405) is fixedly arranged a clamping plate (406), and at one end of the clamping plate (406) is fixedly arranged a clamping block (407); The sliding groove (21) is divided into a first upward groove (211), a first straight groove (212), a first downward groove (213), a second straight groove (214), a second upward groove (215), a third straight groove (216) and a second downward groove (217); The first upward groove (211) and the first straight groove (212) are connected by bolts, and the third straight groove (216) and the second downward groove (217) are connected by bolts.

2. The magnesium alloy casting forming and cooling device according to claim 1, wherein: The cold air mechanism (5) includes a rectangular outer frame (501). An arc-shaped plate (502) is fixed to the inner wall of the rectangular outer frame (501). A heat dissipation fan (503) is arranged on one side of the rectangular outer frame (501). An air outlet (504) is formed on the arc-shaped plate (502) on the side facing the heat dissipation fan (503).

3. The magnesium alloy casting forming and cooling device according to claim 2, characterized in that: One side of the water circulation frame (6) is communicated with a water pipe (601), and the other end of the water pipe (601) is communicated with the cooling pool (1).

4. A magnesium alloy casting forming and cooling device according to claim 3, characterized in that: The filtering component (7) includes a high filtering plate (71) and a low filtering plate (72). A threaded sleeve (711) and a limiting sleeve (712) are fixed to the top of the high filtering plate (71). The threaded sleeve (711) is in threaded rotational cooperation with the threaded rod (101), and the limiting sleeve (712) is in sliding cooperation with the limiting rod (102). Annular clamping grooves (713) are formed on the circumferential surfaces of the threaded sleeve (711) and the limiting sleeve (712). Two J-shaped plates (721) are fixed to the top of the low filtering plate (72). The two J-shaped plates (721) are respectively in clamping cooperation with the two annular clamping grooves (713). A low surrounding frame plate (722) is fixed to the bottom position of the side surface of the low filtering plate (72) close to the high filtering plate (71). A U-shaped push plate (723) is fixed to the top of the low surrounding frame plate (722). Two clamping strips (724) are fixed to one side surface of the U-shaped push plate (723), and the two clamping strips (724) are respectively in clamping cooperation with one side surface of the high filtering plate (71).

5. The forming and cooling device for magnesium alloy castings according to claim 4, characterized in that: Two elastic springs (7241) are fixed to one side surface of each of the two clamping strips (724), and one end of each of the two elastic springs (7241) is fixedly connected with a clamping block (7242). Two clamping grooves (714) are formed on the high filtering plate (71), and the two clamping grooves (714) are respectively in clamping cooperation with the two clamping blocks (7242).

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