Preparation method of magnesium alloy engine cylinder block

Abstract

The invention discloses a preparation method of a magnesium alloy engine cylinder block, and belongs to the technical field of magnesium-aluminum alloy engine preparation, the magnesium alloy engine cylinder block comprises a base, a protective cover is arranged at one end of the top of the base, an L-shaped plate is slidably mounted at the other end of the top of the base towards the protective cover, and a sealing plate for shielding the protective cover is fixed to the side edge of the L-shaped plate. A hot air conveying mechanism composed of a fan, a heating box, a corrugated pipe, an air cavity and an air groove is used in cooperation with a nozzle on a mounting plate, so that when the cylinder body is dried, water is removed in a hot air blowing mode, and in addition, in the hot air water removal process, the drying efficiency is improved. A motor is used for driving, a rotating assembly composed of a first bevel gear, a second shaft rod, a second bevel gear, a spline groove, a spline shaft sleeve and a belt wheel mechanism is used for transmission, the cylinder body can be controlled to rotate around double shafts perpendicular to each other at the same time, water spots are thrown out in an accelerated mode in a centrifugal mode, and the water removal efficiency in the using process is improved.

Description

Technical Field

[0001] The invention relates to a preparation device, in particular to a method for preparing a magnesium alloy engine cylinder block, and belongs to the technical field of magnesium-aluminum alloy engine cylinder block preparation. Background Art

[0002] During the preparation of the engine cylinder block, after the cylinder block undergoes a series of processing and treatment processes, before the assembly stage, some debris, dust, etc. may remain on its surface or inside. In order to ensure the cleanliness of the cylinder block, it needs to be cleaned, and after cleaning it needs to be dried before subsequent processing. The drying methods currently used include compressed air drying, oven drying, and natural drying.

[0003] When using an air spray gun for blow drying, it is necessary to identify the water channels, oil channels and other areas that need to be dehydrated. A small cylinder may need to be blown for 5-10 minutes, and a large cylinder may need 10-20 minutes or even longer. If it is difficult to blow dry for corners, gaps and other areas, it is necessary to frequently change the angle of the spray gun. Drying with a hot air machine takes 10-30 minutes. The traditional drying method is not only inconvenient to operate, but also prone to local residues, and the drying time is longer, affecting subsequent production and processing.

[0004] Therefore, a method for preparing a magnesium alloy engine cylinder block is designed to optimize the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a method for preparing a magnesium alloy engine cylinder body. A hot air conveying mechanism consisting of a fan, a heating box, a bellows, an air cavity, and an air groove is used in conjunction with a nozzle on a mounting plate, so that when the cylinder body is dried, water is removed by blowing with hot air. In addition, during the process of hot air dewatering, a rotating assembly consisting of a motor drive and a first bevel gear, a second shaft rod, a second bevel gear, a spline groove, a spline shaft sleeve, and a pulley mechanism is used for transmission. The cylinder body can be controlled to rotate on its own two axes perpendicular to each other at the same time, and water stains are accelerated to be thrown out in a centrifugal manner, thereby improving the water removal efficiency during use. A gas circulation mechanism consisting of a box body, water-absorbing cotton, an air inlet, a circulation pipe, a pressure plate, and a screw is provided on the side of the shield, so that the hot air can be circulated during the hot air blowing process. The use of the hydraulic cylinder is more energy-efficient, and negative pressure is generated inside the protective cover to generate suction for splashing water stains, effectively preventing water stains from splashing onto the cylinder body again, and is more practical. A slide groove, a slider, and a hydraulic cylinder are arranged on the top of the base, so the horizontal transportation of the cylinder body can be conveniently controlled. In addition, a lifting mechanism composed of a hidden groove, a driven gear, a rack, a gear block, a through groove, and a limit groove is used in conjunction with the use of a linkage control method. The lifting and lowering of the support can be automatically controlled during the horizontal transportation of the cylinder body, making the clamping and positioning of the cylinder body more convenient. Through the fitting assembly composed of an installation groove, a piston, a spring, a top block, and an air pipe, the top block and the cylinder body can be automatically controlled to fit closely according to the different shapes of the end faces of the cylinder body during the clamping and fixing process, thereby increasing the contact area with the cylinder body and improving the stability of the clamping.

[0006] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0007] A method for preparing a magnesium alloy engine cylinder block comprises a base, a shield is provided at one end of the top of the base, an L-shaped plate is slidably installed at the other end of the top of the base in the direction of the shield, a sealing plate for shielding the shield is fixed to the side of the L-shaped plate, a motor is installed on the top of the L-shaped plate, a first shaft rod penetrating the top of the L-shaped plate is installed on the output shaft of the motor, a mounting plate is fixed to the end of the first shaft rod, nozzles are evenly arranged on the outer side of the mounting plate along the length direction, a hot air conveying mechanism for supplying air to the inside of the nozzle is provided on the top of the shield, a clamping mechanism for limiting the position of the cylinder block is provided on the outer side of the mounting plate, and a rotating mechanism for controlling the rotation of the cylinder block on the clamping mechanism is provided on the side of the mounting plate.

[0008] Preferably: a support platform for supporting and placing the cylinder body is vertically slidably installed at the middle position of the top of the base, and a lifting mechanism for controlling the up and down movement of the support platform is provided below the support platform.

[0009] Preferably: a slide groove is opened along the length direction at one end of the top of the base close to the L-shaped plate, a slider is slidably installed inside the slide groove, the top of the slider is fixedly connected to the L-shaped plate, a hydraulic cylinder is vertically installed at one end of the base close to the L-shaped plate, and the output end of the hydraulic cylinder is connected to the slider.

[0010] Preferably: the lifting mechanism includes a hidden groove, a driven gear, a rack, a tooth block, a through groove and a limit groove, the hidden groove is vertically opened at the top of the base and located below the support, the support is located inside the hidden groove, the top of the hidden groove close to the slide groove is rotatably installed with a driven gear, the bottom of the slider is fixedly installed with a rack, and the rack is meshed with the top of the driven gear, the outer side of the support is evenly provided with tooth blocks meshing with the driven gear along the height direction, a through groove for the rack to pass through is opened on the support, and a limit groove cooperating with the rack is opened on the side of the hidden groove.

[0011] Preferably: the clamping mechanism includes a strip groove, a double-acting cylinder, a slide plate, a clamping plate and a turntable, the strip groove is opened on the outer side of the mounting plate along the length direction of the mounting plate, a double-acting cylinder is installed at the middle position inside the strip groove, slide plates are installed at both ends of the double-acting cylinder, the slide plates slide inside the strip groove, and a clamping plate is vertically installed on one end of the slide plate away from the double-acting cylinder, turntables are rotatably installed on the facing sides of the two sets of clamping plates, and fitting components are provided on the opposite sides of the two sets of turntables.

[0012] Preferably: the rotating mechanism includes a first bevel gear, a second shaft rod, a second bevel gear, a spline groove, a spline sleeve and a pulley mechanism, the first bevel gear is fixed on the side of the L-shaped plate, the first shaft rod passes through the middle of the first bevel gear and is rotatably connected to the first bevel gear, the second shaft rod is arranged at one end of the mounting plate along the length direction of the mounting plate, the end of the second shaft rod is fixed with a second bevel gear meshing with the first bevel gear, the outer side of the second shaft rod is evenly provided with spline grooves along the circumferential direction, the end of the second shaft rod is slidably provided with a spline sleeve, and a pulley mechanism is provided between the end of the spline sleeve and the side of the turntable.

[0013] Preferably: the fitting assembly includes a mounting groove, a piston, a spring, a top block and an air pipe, the mounting grooves are evenly arranged on the surface of the turntable, the inside of the mounting grooves are all slidably mounted with pistons, the outside of the pistons are all vertically mounted with top blocks, springs are arranged between the pistons and the inner bottom of the mounting grooves, and air pipes are arranged between the bottom ends of the mounting grooves.

[0014] Preferably: the hot air conveying mechanism includes a fan, a heating box, a bellows, an air cavity and an air groove, the fan is installed at one end of the top of the shield, the heating box is installed at the other end of the top of the shield, the output end of the fan is connected to the interior of the heating box, a bellows is installed at the exhaust port of the heating box, an air cavity is opened at the top of the L-shaped plate, the bottom end of the bellows is connected to the interior of the air cavity, the first shaft rod passes through the interior of the air cavity, and an air groove that connects the air cavity with the nozzle is opened between the first shaft rod and the interior of the mounting plate.

[0015] Preferably: a box body is provided on the outer surface of the shield, a circulation pipe is provided between the top of the box body and the input end of the fan, the interior of the box body is filled with absorbent cotton, air inlet holes are evenly provided between the inner side of the box body and the shield, a screw is threadedly installed on the side of the box body away from the air inlet hole, a pressure plate is fixed to one end of the screw body located inside the box body, and a drainage outlet is provided at the bottom of the box body.

[0016] Preferably: a water tank is provided at the top of the base below the box body, one end of the base located inside the shield is inclined toward the inside of the water tank, and a water collection port communicated with the inside of the water tank is provided at the bottom outside the shield.

[0017] The beneficial effects of the present invention are:

[0018] The invention provides a method for preparing a magnesium alloy engine cylinder body. A hot air conveying mechanism composed of a fan, a heating box, a bellows, an air cavity, and an air groove is used in conjunction with a nozzle on a mounting plate, so that when the cylinder body is dried, water is removed by blowing with hot air. In addition, during the hot air water removal process, a rotating assembly composed of a motor drive and a first bevel gear, a second shaft rod, a second bevel gear, a spline groove, a spline shaft sleeve, and a pulley mechanism is used for transmission, and the cylinder body can be controlled to rotate with two axes perpendicular to each other at the same time, and water stains are accelerated to be thrown out in a centrifugal manner, thereby improving the water removal efficiency during use.

[0019] By arranging a gas circulation mechanism consisting of a box, absorbent cotton, air inlet, circulation pipe, pressing plate and screw on the side of the shield, the hot air can be recycled in the process of hot air blowing, which is more energy-saving, and negative pressure is generated inside the shield to generate suction for splashing water stains, effectively preventing water stains from splashing onto the cylinder again, which is more practical;

[0020] By arranging a slide groove, a slider and a hydraulic cylinder on the top of the base, the horizontal conveying of the cylinder body can be conveniently controlled. In addition, the lifting mechanism composed of a hidden groove, a driven gear, a rack, a gear block, a through groove and a limit groove is used. The linkage control method is adopted, and the lifting and lowering of the support platform can be automatically controlled during the horizontal conveying of the cylinder body, making the clamping and positioning of the cylinder body more convenient.

[0021] Through the fitting assembly consisting of the mounting groove, piston, spring, top block and air pipe, the top block and the cylinder body can be automatically controlled to fit tightly together according to the different shapes of the cylinder body end faces during the clamping and fixing process, thereby increasing the contact area with the cylinder body and improving the stability of the clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of a preferred embodiment of a method for preparing a magnesium alloy engine cylinder block of the present invention;

[0023] Figure 2 It is a front cross-sectional view of a preferred embodiment of a method for preparing a magnesium alloy engine cylinder block of the present invention;

[0024] Figure 3 It is a partial structural diagram of a preferred embodiment of a method for preparing a magnesium alloy engine cylinder block of the present invention;

[0025] Figure 4 It is a side structural diagram of a mounting plate of a preferred embodiment of a method for preparing a magnesium alloy engine cylinder block of the present invention;

[0026] Figure 5 A cross-sectional view of a turntable in a preferred embodiment of a method for preparing a magnesium alloy engine cylinder block of the present invention;

[0027] Figure 6 A preferred embodiment of a method for preparing a magnesium alloy engine cylinder block of the present invention Figure 2 Enlarged view of point A in the middle;

[0028] Figure 7 A preferred embodiment of a method for preparing a magnesium alloy engine cylinder block of the present invention Figure 2 Enlarged view of point B in the middle;

[0029] Figure 8 This is a structural diagram of a support platform in a preferred embodiment of a method for preparing a magnesium alloy engine cylinder block of the present invention.

[0030] In the figure: 1, base; 2, L-shaped plate; 3, motor; 4, first shaft; 5, mounting plate; 6, nozzle; 7, clamping mechanism; 8, support platform; 9, shield; 10, sealing plate; 11, fan; 12, heating box; 13, bellows; 14, air cavity; 15, air groove; 16, strip groove; 17, double-acting cylinder; 18, slide plate; 19, clamping plate; 20, turntable; 21, first bevel gear; 22, second shaft; 23, second bevel gear; 24, Spline groove; 25, spline sleeve; 26, pulley mechanism; 27, mounting groove; 28, piston; 29, spring; 30, top block; 31, air pipe; 32, slide groove; 33, slider; 34, hydraulic cylinder; 35, hidden groove; 36, driven gear; 37, rack; 38, gear block; 39, through groove; 40, limit groove; 41, water tank; 42, box body; 43, absorbent cotton; 44, air inlet; 45, circulation pipe; 46, pressure plate; 47, screw. DETAILED DESCRIPTION

[0031] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0032] like Figure 1-Figure 8As shown, this embodiment provides a method for preparing a magnesium alloy engine cylinder block, comprising a base 1, a shield 9 is provided at one end of the top of the base 1, an L-shaped plate 2 is slidably installed at the other end of the top of the base 1 toward the shield 9, a sealing plate 10 for shielding the shield 9 is fixed to the side of the L-shaped plate 2, a motor 3 is installed on the top of the L-shaped plate 2, a first shaft rod 4 passing through the top of the L-shaped plate 2 is installed on the output shaft of the motor 3, a mounting plate 5 is fixed to the end of the first shaft rod 4, nozzles 6 are evenly provided on the outer side of the mounting plate 5 along the length direction, a hot air conveying mechanism for supplying air to the inside of the nozzle 6 is provided on the top of the shield 9, a clamping mechanism 7 for limiting the cylinder block is provided on the outer side of the mounting plate 5, and a rotating mechanism for controlling the rotation of the cylinder block on the clamping mechanism 7 is provided on the side of the mounting plate 5.

[0033] The overall working principle is as follows: when dehydrating and drying the cylinder body after cleaning, first the L-shaped plate 2 drives the mounting plate 5 to move to the end of the base 1 to provide space for the installation of the cylinder body, and the cylinder body is placed on the outer side of the mounting plate 5 by using a mechanical arm, so that the mounting plate 5 is parallel to the base 1, and the cylinder body is clamped and positioned by using a clamping mechanism 7. After the cylinder body is clamped and positioned, the L-shaped plate 2 is controlled to move toward the direction of the protective cover 9 to seal the protective cover 9, and the motor 3 is started to drive the cylinder body on the side of the mounting plate 5 to rotate around the first shaft 4 as the axis. At the same time, the rotating mechanism can be used to control the cylinder body to rotate again around the axis determined by the length direction of the mounting plate 5 during the rotation of the cylinder body, and the cylinder body is controlled to rotate in multiple directions to speed up the removal of water stains inside. In addition, during the centrifugal removal of water stains, the hot air conveying mechanism is used to convey hot air to the nozzle 6, and the hot air is blown directly on the surface of the cylinder body to blow hot air to speed up the rate of dehydration and drying.

[0034] In this embodiment, a support platform 8 for supporting the cylinder body is vertically slidably installed at the middle position of the top of the base 1, and a lifting mechanism for controlling the up and down movement of the support platform 8 is provided below the support platform 8.

[0035] Local working principle: When clamping the cylinder body, first use the mechanical arm to clamp the cylinder body to the top of the support platform 8, where the support platform 8 is in a raised state, and the bottom end of the cylinder body is lower than the horizontal plane of the bottom end of the mounting plate 5. Move the clamping mechanism 7 to both ends of the cylinder body to clamp and position the cylinder body.

[0036] In this embodiment, a slide groove 32 is provided along the length direction at one end of the top of the base 1 close to the L-shaped plate 2, and a slider 33 is slidably installed inside the slide groove 32. The top of the slider 33 is fixedly connected to the L-shaped plate 2. A hydraulic cylinder 34 is vertically installed at one end of the base 1 close to the L-shaped plate 2, and the output end of the hydraulic cylinder 34 is connected to the slider 33.

[0037] Partial working principle: When controlling the L-shaped plate 2 to move horizontally, the hydraulic cylinder 34 is started to control the slider 33 to slide inside the slide groove 32, thereby controlling the L-shaped plate 2 to move horizontally.

[0038] In this embodiment, the lifting mechanism includes a hidden groove 35, a driven gear 36, a rack 37, a tooth block 38, a through groove 39 and a limit groove 40. The hidden groove 35 is vertically opened at the top of the base 1 and is located below the support 8. The support 8 is located inside the hidden groove 35. The top of the hidden groove 35 close to the slide groove 32 is rotatably installed with a driven gear 36. The bottom of the slider 33 is fixedly installed with a rack 37, and the rack 37 is meshed with the top of the driven gear 36. The outer side of the support 8 is evenly provided with tooth blocks 38 meshing with the driven gear 36 along the height direction. The support 8 is provided with a through groove 39 for the rack 37 to pass through, and the side of the hidden groove 35 is provided with a limit groove 40 that cooperates with the rack 37.

[0039] Local working principle: After the cylinder body is clamped, the hydraulic cylinder 34 pushes the slider 33 to move toward the direction of the shield 9. At this time, the rack 37 controls the driven gear 36 to rotate clockwise and pass through the inside of the through groove 39. The driven gear 36 is meshed with the tooth block 38, which will control the downward movement of the support 8 and automatically shrink the support 8 to the inside of the hidden groove 35 to avoid hindering the sliding of the L-shaped plate 2. When the cylinder body is dewatered, the hydraulic cylinder 34 pulls the slider 33 to reset. At this time, under the linkage control of the driven gear 36, the rack 37 and the tooth block 38, the support 8 will automatically rise to receive the cylinder body.

[0040] In this embodiment, the clamping mechanism 7 includes a strip groove 16, a double-acting cylinder 17, a slide plate 18, a clamp plate 19 and a turntable 20. The strip groove 16 is opened on the outer side of the mounting plate 5 along the length direction of the mounting plate 5. The double-acting cylinder 17 is installed at the middle position inside the strip groove 16. Slide plates 18 are installed at both ends of the double-acting cylinder 17. The slide plates 18 slide inside the strip groove 16. The ends of the slide plates 18 away from the double-acting cylinder 17 are vertically installed with clamp plates 19. Turntables 20 are rotatably installed on the facing sides of the two sets of clamp plates 19, and fitting components are provided on the opposite sides of the two sets of turntables 20.

[0041] Local working principle: When clamping the cylinder body, the clamping plates 19 are respectively located at the two ends of the cylinder body, and then the double-acting cylinder 17 is started to control the two sets of slide plates 18 to move toward each other. The slide plates 18 drive the clamping plates 19 to move toward each other, squeezing the turntable 20 at the two ends of the cylinder body, and using the fitting components to increase the contact area with the cylinder body to ensure the clamping stability.

[0042] In this embodiment, the rotating mechanism includes a first bevel gear 21, a second shaft rod 22, a second bevel gear 23, a spline groove 24, a spline sleeve 25 and a pulley mechanism 26. The first bevel gear 21 is fixed on the side of the L-shaped plate 2, the first shaft rod 4 passes through the middle of the first bevel gear 21 and is rotatably connected to the first bevel gear 21, the second shaft rod 22 is arranged at one end of the mounting plate 5 along the length direction of the mounting plate 5, and the end of the second shaft rod 22 is fixed with a second bevel gear 23 meshing with the first bevel gear 21, the outer side of the second shaft rod 22 is evenly provided with spline grooves 24 along the circumferential direction, the end of the second shaft rod 22 is slidably provided with a spline sleeve 25, and a pulley mechanism 26 is provided between the end of the spline sleeve 25 and the side of the turntable 20.

[0043] Local working principle: When the first shaft rod 4 drives the mounting plate 5 to rotate, the second bevel gear 23 on the second shaft rod 22 outside the mounting plate 5 revolves around the first bevel gear 21 and rotates. When the second bevel gear 23 rotates, it drives the second shaft rod 22 and the spline sleeve 25 to rotate, and drives the cylinder body between the turntables 20 to rotate through the pulley mechanism 26.

[0044] In this embodiment, the fitting assembly includes a mounting groove 27, a piston 28, a spring 29, a top block 30 and an air pipe 31. The mounting grooves 27 are evenly arranged on the surface of the turntable 20. The pistons 28 are slidably installed inside the mounting grooves 27, and the top blocks 30 are vertically installed on the outer sides of the pistons 28. Springs 29 are provided between the pistons 28 and the inner bottom of the mounting grooves 27, and air pipes 31 are provided between the bottom ends of the mounting grooves 27.

[0045] Local working principle: when the cylinder body is squeezed and fixed, since the end of the cylinder body is not flat, the top block 30 will be squeezed to varying degrees. Part of the top block 30 is compressed, while part of the top block 30 is pushed out, and all of them are in contact with the end of the cylinder body. The pressure inside the mounting groove 27 increases, and the cylinder body can be squeezed stably. At the same time, due to the supporting effect of the top block 30, the turntable 20 will not contact the cylinder body, and hot air can dry the end through the gap.

[0046] In this embodiment, the hot air delivery mechanism includes a fan 11, a heating box 12, a bellows 13, an air cavity 14 and an air groove 15. The fan 11 is installed at one end of the top of the protective cover 9, and the heating box 12 is installed at the other end of the top of the protective cover 9. The output end of the fan 11 is connected to the interior of the heating box 12. The bellows 13 is installed at the exhaust port of the heating box 12. The air cavity 14 is opened at the top of the L-shaped plate 2. The bottom end of the bellows 13 is connected to the interior of the air cavity 14. The first shaft rod 4 passes through the interior of the air cavity 14. The air groove 15 that connects the air cavity 14 with the nozzle 6 is opened inside the first shaft rod 4 and the mounting plate 5.

[0047] Partial working principle: During hot air drying, the fan 11 is started to transport gas to the interior of the heating box 12. After being heated inside the heating box 12, the gas enters the air cavity 14, and then is transported to the nozzle 6 along the air groove 15, and finally discharged and blown onto the outer surface of the cylinder body for dehydration and drying.

[0048] In this embodiment, a box body 42 is provided on the outer surface of the protective cover 9, a circulation pipe 45 is provided between the top of the box body 42 and the input end of the fan 11, the interior of the box body 42 is filled with absorbent cotton 43, and air inlet holes 44 are evenly opened between the inner side of the box body 42 and the protective cover 9. A screw 47 is threadedly installed on the side of the box body 42 away from the air inlet hole 44, and a pressure plate 46 is fixed to one end of the screw 47 located inside the box body 42, and a drainage outlet is opened at the bottom of the box body 42.

[0049] Local working principle: Since the circulation pipe 45 connects the air inlet end of the fan 11 and the protective cover 9, it will generate suction on the water molecules to prevent splashing water stains from falling onto the surface of the cylinder body, thereby improving the drying effect. In addition, the hot air inside the protective cover 9 can be recycled, and the water molecules sucked in by the negative pressure are absorbed by the absorbent cotton 43, ensuring the dryness of the gas during reflux. After a period of use, the absorbent cotton 43 will reach a saturated state. At this time, the screw 47 is rotated to control the pressure plate 46 to squeeze the absorbent cotton 43 to discharge the water.

[0050] In this embodiment, a water tank 41 is provided at the top of the base 1 below the box body 42, one end of the base 1 located inside the protective cover 9 is inclined toward the inside of the water tank 41, and a water collection port connected to the inside of the water tank 41 is provided at the bottom of the outer side of the protective cover 9.

[0051] Partial working principle: the water squeezed out from the absorbent cotton 43 will fall into the water tank 41 after being discharged from the drain port, and the water stains inside the protective cover 9 will also flow into the water tank 41 for collection.

[0052] The above description is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims

1. A method for preparing a magnesium alloy engine cylinder block, comprising a cylinder block preparation device for the preparation method, the device comprising a base (1), characterized in that: A protective cover (9) is provided at one end of the top of the base (1), an L-shaped plate (2) is slidably installed at the other end of the top of the base (1) in the direction of the protective cover (9), a sealing plate (10) for shielding the protective cover (9) is fixed on the side of the L-shaped plate (2), a motor (3) is installed on the top of the L-shaped plate (2), a first shaft (4) passing through the top of the L-shaped plate (2) is installed on the output shaft of the motor (3), a mounting plate (5) is fixed at the end of the first shaft (4), nozzles (6) are evenly arranged on the outer side of the mounting plate (5) along the length direction, a hot air conveying mechanism for supplying air to the inside of the nozzle (6) is provided on the top of the protective cover (9), a clamping mechanism (7) for limiting the position of the cylinder body is provided on the outer side of the mounting plate (5), and a rotating mechanism for controlling the cylinder body to rotate on the clamping mechanism (7) is provided on the side of the mounting plate (5).

2. The method for preparing a magnesium alloy engine cylinder block according to claim 1, characterized in that: A support platform (8) for supporting and placing the cylinder body is vertically slidably installed at the middle position of the top of the base (1), and a lifting mechanism for controlling the upward and downward movement of the support platform (8) is provided below the support platform (8).

3. The method for preparing a magnesium alloy engine cylinder block according to claim 2, characterized in that: A slide groove (32) is provided at one end of the top of the base (1) close to the L-shaped plate (2) along the length direction, a slider (33) is slidably installed inside the slide groove (32), the top of the slider (33) is fixedly connected to the L-shaped plate (2), and a hydraulic cylinder (34) is vertically installed at one end of the base (1) close to the L-shaped plate (2), and the output end of the hydraulic cylinder (34) is connected to the slider (33).

4. The method for preparing a magnesium alloy engine cylinder block according to claim 3, characterized in that: The lifting mechanism comprises a hidden groove (35), a driven gear (36), a rack (37), a tooth block (38), a through groove (39) and a limiting groove (40). The hidden groove (35) is vertically arranged at the top of the base (1) and located below the support platform (8). The support platform (8) is located inside the hidden groove (35). A driven gear (36) is rotatably mounted on the top of the hidden groove (35) near the sliding groove (32). A rack (37) is fixedly mounted on the bottom of the slide block (33), and the rack (37) is meshed with the top of the driven gear (36). Tooth blocks (38) meshing with the driven gear (36) are evenly arranged on the outer side of the support platform (8) along the height direction. A through groove (39) for the rack (37) to pass through is arranged on the support platform (8). A limiting groove (40) cooperating with the rack (37) is arranged on the side of the hidden groove (35).

5. A method for preparing a magnesium alloy engine cylinder block according to any one of claims 1 to 4, characterized in that: The clamping mechanism (7) comprises a strip groove (16), a double-acting cylinder (17), a slide plate (18), a clamping plate (19) and a turntable (20). The strip groove (16) is arranged on the outer side of the mounting plate (5) along the length direction of the mounting plate (5). The double-acting cylinder (17) is installed at the middle position inside the strip groove (16). The slide plates (18) are installed at both ends of the double-acting cylinder (17). The slide plates (18) slide inside the strip groove (16). The ends of the slide plates (18) away from the double-acting cylinder (17) are vertically installed with clamping plates (19). The turntables (20) are rotatably installed on the facing sides of the two groups of clamping plates (19). The opposite sides of the two groups of turntables (20) are provided with fitting components.

6. The method for preparing a magnesium alloy engine cylinder block according to claim 5, characterized in that: The rotating mechanism comprises a first bevel gear (21), a second shaft (22), a second bevel gear (23), a spline groove (24), a spline shaft sleeve (25) and a pulley mechanism (26); the first bevel gear (21) is fixed on the side of the L-shaped plate (2); the first shaft (4) passes through the middle of the first bevel gear (21) and is rotatably connected to the first bevel gear (21); the second shaft (22) is arranged at one end of the mounting plate (5) along the length direction of the mounting plate (5); the end of the second shaft (22) is fixed with a second bevel gear (23) meshing with the first bevel gear (21); the outer side of the second shaft (22) is evenly provided with spline grooves (24) along the circumferential direction; the end of the second shaft (22) is slidably provided with a spline shaft sleeve (25); and a pulley mechanism (26) is provided between the end of the spline shaft sleeve (25) and the side of the rotating disk (20).

7. The method for preparing a magnesium alloy engine cylinder block according to claim 6, characterized in that: The fitting assembly comprises a mounting groove (27), a piston (28), a spring (29), a top block (30) and an air pipe (31). The mounting groove (27) is evenly arranged on the surface of the turntable (20). The inside of the mounting groove (27) is slidably mounted with a piston (28). The outside of the piston (28) is vertically mounted with a top block (30). A spring (29) is arranged between the piston (28) and the inner bottom of the mounting groove (27). The air pipe (31) is arranged between the bottom ends of the mounting groove (27).

8. A method for preparing a magnesium alloy engine cylinder block according to claim 1, 6 or 7, characterized in that: The hot air conveying mechanism comprises a fan (11), a heating box (12), a bellows (13), an air cavity (14) and an air groove (15); the fan (11) is mounted at one end of the top of the protective cover (9); the heating box (12) is mounted at the other end of the top of the protective cover (9); the output end of the fan (11) is connected to the inside of the heating box (12); a bellows (13) is mounted at the exhaust port of the heating box (12); an air cavity (14) is provided at the top of the L-shaped plate (2); the bottom end of the bellows (13) is connected to the inside of the air cavity (14); a first shaft (4) passes through the inside of the air cavity (14); and an air groove (15) for connecting the air cavity (14) and the nozzle (6) is provided between the first shaft (4) and the inside of the mounting plate (5).

9. The method for preparing a magnesium alloy engine cylinder block according to claim 8, characterized in that: A box body (42) is provided on the outer surface of the protective cover (9), a circulation pipe (45) is provided between the top of the box body (42) and the input end of the fan (11), the interior of the box body (42) is filled with absorbent cotton (43), air inlet holes (44) are evenly provided between the inner side of the box body (42) and the protective cover (9), a screw rod (47) is threadedly installed on the side of the box body (42) away from the air inlet hole (44), a pressing plate (46) is fixed to one end of the screw rod (47) located inside the box body (42), and a drainage port is provided at the bottom of the box body (42); A water tank (41) is provided at the top of the base (1) below the box body (42); one end of the base (1) located inside the protective cover (9) is inclined toward the inside of the water tank (41); and a water collection port communicating with the inside of the water tank (41) is provided at the bottom outside the protective cover (9).

10. The method for preparing a magnesium alloy engine cylinder block according to claim 9, characterized in that: The steps include: Step 1: When removing water and drying the cleaned cylinder body, first move the L-shaped plate (2) to drive the mounting plate (5) to the end of the base (1) to provide space for the installation of the cylinder body, and use a mechanical arm to place the cylinder body on the outer side of the mounting plate (5), so that the mounting plate (5) and the base (1) are parallel; Step 2: The cylinder body is clamped and positioned by using the clamping mechanism (7). After the cylinder body is clamped and positioned, the L-shaped plate (2) is controlled to move toward the direction of the shield (9) to seal the shield (9), and the motor (3) is started to drive the cylinder body on the side of the mounting plate (5) to rotate around the first shaft (4). At the same time, the rotating mechanism can be used to control the cylinder body to rotate again around the axis determined by the length direction of the mounting plate (5) during the rotation of the cylinder body; Step 3: Control the cylinder to rotate in multiple directions to accelerate the removal of water stains inside. In addition, during the process of centrifugal removal of water stains, use the hot air delivery mechanism to deliver hot air to the nozzle (6), and the hot air is directly blown onto the surface of the cylinder to accelerate the rate of water removal and drying.

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