Preparation process of magnesium alloy engine cylinder block

Abstract

The invention belongs to the technical field of engine cylinder body preparation, and particularly relates to a magnesium alloy engine cylinder body preparation technology, sand blasting equipment comprises a sand blasting machine body, the sand blasting machine body comprises a supporting frame, a sand blasting box is fixedly connected to the interior of the supporting frame, a sand storage box is fixedly connected to the top of the sand blasting box, and an inner cavity is formed in the sand blasting box; a filter plate is fixedly connected to the side wall of an inner cavity of the sand blasting box, and oil dirt attached to the inner wall of a hole of the filter plate can be gradually ejected out in the lifting process of a jacking column, so that the working efficiency of equipment can be improved, meanwhile, the service life of the filter plate can be prolonged, the replacement frequency of the filter plate can be reduced, and the production cost is reduced. And meanwhile, all the jacking columns are driven to return to the initial positions through the fixing plate, and when the jacking columns return to the initial positions, the jacking columns and holes in the filter plate cannot be located in the same vertical plane, so that the blocking condition of the filter plate during filtering can be avoided, and meanwhile, the reciprocating jacking mechanism can be protected.

Description

Technical Field

[0001] The invention relates to the technical field of engine cylinder preparation, in particular to a magnesium alloy engine cylinder preparation process. Background Art

[0002] The magnesium alloy engine cylinder preparation equipment is a comprehensive manufacturing system, which mainly includes magnesium alloy melting and refining equipment, casting and molding equipment and sandblasting equipment. Among them, the sandblasting machine is a key post-processing equipment, which is used to sandblast the surface of the magnesium alloy engine cylinder after casting to remove surface dirt and increase surface roughness, thereby improving the adhesion between the cylinder and the coating, and providing a high-quality surface foundation for its subsequent processing and coating processes.

[0003] Existing sandblasting machines usually use a multi-stage separation and filtration system to achieve sand recycling. After the sandblasting operation, the sand and impurities are mixed and fall into the recovery bin. First, they are gravity screened through an inclined filter plate or screen to intercept large particles of impurities. Then, the air flow separation of a cyclone separator or an air separation device is used to further remove fine dust and light impurities. The clean sand is returned to the sandblasting tank for recycling through a spiral conveyor or pneumatic system.

[0004] There are still some problems in the actual application of the above scheme. When a sandblasting machine is used to process the surface of the engine cylinder, cutting fluid is used in the processing of the engine cylinder (such as drilling and milling), and the cutting fluid usually contains a certain amount of oily components. When the sandblasting machine performs sandblasting on the surface of the cylinder, the oil and other substances on the surface of the engine cylinder will be washed away. When the oil-carrying sand (such as steel shot) passes through the filter plate, the oil it carries will adhere to the holes of the filter plate. At the same time, a large amount of dust will be generated during the sandblasting process. When these dusts are mixed with the holes attached to the filter plate, oil will be formed in the holes of the filter plate, which will cause the filter plate to be blocked, thereby reducing the working efficiency of the sandblasting equipment.

[0005] To this end, the present invention provides a process for preparing a magnesium alloy engine cylinder block. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a magnesium alloy engine cylinder preparation process described in the present invention includes raw material preparation, smelting, casting, heat treatment, machining, sandblasting and coating treatment, and the sandblasting treatment includes the following steps:

[0008] Step 1: Place the machined engine block inside the sandblasting machine body;

[0009] Step 2: Start the first motor to drive the rotating gear to rotate, and while the rotating gear rotates, drive multiple groups of lifting columns through the moving plate to eject the oil stains attached to the inner annular surface of the filter plate hole;

[0010] Step 3: The first contact point is abutted against the second contact point, and the electric guide rail is started to drive the push plate to move horizontally against the upper surface of the filter plate, and the oil dirt pushed out by the lifting column in the reciprocating lifting mechanism is pushed into the inside of the storage box;

[0011] Step 4: When the reciprocating pushing mechanism completes its work, the first motor in the reciprocating lifting mechanism will rotate in the reverse direction, and at the same time will drive the multiple sets of lifting columns to return to the initial position synchronously. At this time, the multiple sets of lifting columns are not directly below the holes of the filter plate.

[0012] As a further solution of the present invention: in step one, the engine block, the filter plate and the lifting column are distributed in a top-down order on the same vertical plane.

[0013] As a further solution of the present invention: in step 2, when the equipment is in the process of sandblasting, the first motor is started, and the output shaft of the first motor drives the rotating gear to rotate clockwise through the rotating shaft.

[0014] As a further solution of the present invention: when the rotating gear rotates clockwise, the movable plate is driven to move horizontally through the fixed column, thereby driving the lifting column to move to the bottom of the filter plate hole.

[0015] As a further solution of the present invention: when the lifting column moves to the bottom of the filter plate hole, the rotating gear is located above one side of the fixed column. At this time, the first motor rotates clockwise and is blocked by another arc-shaped block during the rotation. At the same time, the outer ring surface of the rotating gear is always engaged with a fixed column on the same horizontal plane. At this time, when the rotating gear continues to rotate, the fixed column on the other side will move to the upper part of the rotating gear, thereby driving the moving plate to move upward along the guide groove on the inner side of the moving frame. The moving plate is transformed from horizontal to vertical movement through the cooperation of the rotating gear, the fixed column and the arc-shaped block.

[0016] As a further solution of the present invention: when the movable plate moves vertically along the slide groove opened on the inner side of the movable frame, the fixed plate will synchronously drive multiple groups of lifting columns to move synchronously, and during the movement, the oil stains attached to the inner annular surface of the filter plate holes will be ejected.

[0017] As a further solution of the present invention: in step three, when the first contact point abuts against the second contact point, the electric guide rail is started, and at this time the electric guide rail will synchronously drive the push plate through the sliding block to push the lifted oil stains away from the surface of the filter plate.

[0018] As a further solution of the present invention: in the process of the reciprocating pushing mechanism pushing away the oil dirt ejected by the reciprocating lifting mechanism, the lifting column is still in the hole of the filter plate, so that the ejected oil dirt will not fall back into the hole of the filter plate.

[0019] As a further solution of the present invention: in step four, when the reciprocating pushing mechanism completes its work, the first motor rotates counterclockwise, and the fixed column moves from the top of the rotating gear to the bottom of the rotating gear, and simultaneously drives the movable plate to move downward, and the lifting column will be separated from the hole of the filter plate.

[0020] As a further solution of the present invention: when the fixed column gradually moves from the top of the rotating gear to the bottom of the rotating gear, the first motor rotates counterclockwise and drives the moving plate to move synchronously through the fixed column while rotating. When the rotating gear moves to the top of the fixed column on the other side, the multiple groups of lifting columns are not located directly below the holes of the filter plate.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. In the present invention, when the rotating gear is located at the upper part of the other side of the fixed column, several groups of lifting columns and the holes on the filter plate are on the same vertical plane. At this time, the first motor will continue to rotate clockwise. At this time, the rotating shaft will be blocked by another arc-shaped block during rotation. At the same time, since the outer ring surface of the rotating gear is always meshed with the fixed column on the same horizontal plane, when the rotating gear continues to rotate, the fixed column on the other side will gradually move to the upper part of the rotating gear, thereby driving the moving plate to be lifted linearly along the guide groove on the side wall of the moving frame, and then all the lifting columns can be driven to be lifted. When the rotating shaft and the center of a fixed column on the other side are on the same vertical plane, the first contact fixed on the top of the moving plate will be against the second contact. At the same time, since the size of the lifting column is adapted to the size of the hole on the filter plate, the oil and dirt attached to the inner wall of the hole of the filter plate can be gradually ejected during the lifting of the lifting column, thereby improving the working efficiency of the equipment and extending the service life of the filter plate, thereby reducing the replacement frequency of the filter plate and reducing the production cost of the enterprise.

[0023] 2. When the present invention rotates counterclockwise by rotating the rotating gear, the moving plate will gradually move downward along the guide groove on the inner wall of the moving frame, and in the process of movement, all the lifting columns will be driven to gradually separate from the holes of the filter plate through the fixed plate. When the rotating gear continues to rotate counterclockwise, the moving plate will gradually return to the initial state against the moving frame, thereby driving all the lifting columns to return to the initial position through the fixed plate. When the lifting columns return to the initial position, they will not be on the same vertical plane as the holes on the filter plate, thereby avoiding the obstruction of the filter plate during filtering, and at the same time, it can also protect the reciprocating lifting mechanism;

[0024] 3. The present invention starts the electric guide rail when the first contact and the second contact are against each other. At this time, the electric guide rail will drive the sliding block sliding inside it to perform linear motion, and synchronously drive the connecting rod and the push plate fixed thereto to move during the movement. At this time, the top of the lifting column in the reciprocating lifting mechanism is still flush with the top of the filter plate. At this time, the linear motion of the push plate can push the ejected oil and the larger burrs and oxides left after filtering by the filter plate into the storage box through the discharge port, thereby preventing the push plate from falling back into the holes of the filter plate when pushing the oil, oxides and burrs, thereby further improving the working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Figure 1 This is a process flow chart of the preparation of a magnesium alloy engine cylinder block according to the present invention;

[0027] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the position structure of the sandblasting machine body and the reciprocating lifting mechanism in the present invention;

[0029] Figure 4 It is a three-dimensional structural schematic diagram of the reciprocating lifting mechanism in the present invention;

[0030] Figure 5 It is a schematic diagram of the position structure of the rotating gear and the fixed column in the present invention;

[0031] Figure 6 It is a bottom-up stereoscopic structural schematic diagram of the reciprocating lifting mechanism of the present invention;

[0032] Figure 7 It is a schematic diagram of the exploded structure of the reciprocating lifting mechanism components in the present invention;

[0033] Figure 8 It is a schematic diagram of the position structure of the sandblasting machine body and the reciprocating material pushing mechanism in the present invention;

[0034] Fig. 9 It is a three-dimensional structural schematic diagram of the reciprocating material pushing mechanism in the present invention.

[0035] In the figure: 1, sandblasting machine body; 101, support frame; 102, sandblasting box; 103, sand storage box; 104, filter plate;

[0036] 2. Reciprocating lifting mechanism; 201. Blocking plate; 202. First motor; 203. Rotating shaft; 204. Rotating gear; 205. Stop block; 206. Moving rod; 207. Moving frame; 208. Moving plate; 209. Arc stop block; 210. Fixed column; 211. Fixed plate; 212. First contact point; 213. Second contact point; 214. Support bracket; 215. Lifting column;

[0037] 3. Reciprocating pushing mechanism; 301. Oblique baffle; 302. Electric guide rail; 303. Sliding block; 304. Connecting rod; 305. Pushing plate; 306. Discharging port; 307. Storage box. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] Embodiment 1

[0040] See also Figures 1 to 9 As shown, a magnesium alloy engine cylinder block preparation process includes raw material preparation, smelting, casting, heat treatment, machining, sandblasting and coating treatment, and the sandblasting treatment includes the following steps:

[0041] Step 1: Place the machined engine block inside the sandblasting machine body;

[0042] Step 2: Start the first motor to drive the rotating gear to rotate, and while the rotating gear rotates, drive multiple groups of lifting columns through the moving plate to eject the oil stains attached to the inner annular surface of the filter plate hole;

[0043] Step 3: The first contact point is abutted against the second contact point, and the electric guide rail is started to drive the push plate to move horizontally against the upper surface of the filter plate, and the oil dirt pushed out by the lifting column in the reciprocating lifting mechanism is pushed into the inside of the storage box;

[0044] Step 4: When the reciprocating pushing mechanism completes its work, the first motor in the reciprocating lifting mechanism will rotate in the reverse direction, and at the same time will drive the multiple sets of lifting columns to return to the initial position synchronously. At this time, the multiple sets of lifting columns are not directly below the holes of the filter plate.

[0045] Embodiment 2

[0046] like Figures 2 to 9 As shown in Comparative Example 1, another embodiment of the present invention is:

[0047] like Figure 2As shown, the sandblasting equipment described in this embodiment includes a sandblasting machine body 1, and the sandblasting machine body 1 includes a support frame 101, a sandblasting box 102 is fixedly connected inside the support frame 101, a sand storage box 103 is fixedly connected to the top of the sandblasting box 102, an inner cavity is opened inside the sandblasting box 102, a filter plate 104 is fixedly connected to the side wall of the inner cavity of the sandblasting box 102, and a reciprocating lifting mechanism 2 is arranged inside the sandblasting machine body 1.

[0048] Specifically, when a sandblasting machine is used to process the surface of an engine cylinder, cutting fluid is used in the processing of the engine cylinder (such as drilling and milling), and the cutting fluid usually contains a certain amount of oily components. When the sandblasting machine performs sandblasting on the surface of the cylinder, other substances such as oil stains on the surface of the engine cylinder will be washed away. When the oil-carrying sand (such as steel shot) passes through the filter plate 104, the oil it carries will adhere to the holes of the filter plate 104. At the same time, a large amount of dust will be generated during the sandblasting process. When the dust is mixed with the dust attached to the holes of the filter plate 104, oil stains will be formed in the holes of the filter plate 104, which will cause the filter plate 104 to be blocked, thereby reducing the working efficiency of the sandblasting equipment.

[0049] Therefore, the present invention solves this problem by setting a certain structure. When the engine cylinder body needs to be sandblasted, the cylinder body is placed on a fixing device inside the sandblasting box 102. At this time, the nozzle under the sand storage box 103 is started, and the steel shots in the sand storage box 103 are sprayed out through the nozzle, so that they fall onto the surface of the cylinder body, thereby removing the oil stains, oxides and burrs on the surface of the cylinder body. At this time, these steel shots will fall onto the surface of the filter plate 104, and the slightly larger burrs and oxides will be filtered out through the filter plate 104. However, since cutting fluid is used in the processing of the engine cylinder body (such as drilling and milling), and the cutting fluid usually contains a certain oily component, when the sandblasting machine performs sandblasting on the surface of the cylinder body , it will wash away the oil and other substances on the surface of the engine cylinder. When the sand material carrying oil (such as steel shot) passes through the filter plate 104, the oil it carries will adhere to the holes of the filter plate 104. At the same time, a large amount of dust will be generated during the sandblasting process. When the dust is mixed with the holes attached to the filter plate 104, oil will be formed in the holes of the filter plate 104, which will cause the filter plate 104 to be blocked, thereby reducing the working efficiency of the sandblasting equipment. At this time, the oil in the holes of the filter plate 104 can be ejected by starting the reciprocating lifting mechanism 2, thereby reducing the replacement frequency of the filter plate 104, thereby reducing the production cost of the enterprise.

[0050] like Figure 4 and Figure 5As shown, the reciprocating lifting mechanism 2 described in this embodiment includes a blocking plate 201, and the blocking plate 201 is fixedly connected to the side wall of the inner cavity of the sandblasting box 102. The side of the blocking plate 201 is fixedly connected to a first motor 202, and the output end of the first motor 202 is fixedly connected to a rotating shaft 203, and the outer ring surface of the rotating shaft 203 is fixedly connected to a rotating gear 204.

[0051] like Figure 5 As shown, in this embodiment, the movable plate 208 is fixedly connected to a side with an arc-shaped stopper 209, and the movable plate 208 is fixedly connected to a fixed column 210 on the side. The reciprocating lifting mechanism 2 also includes a limit block 205, and the limit block 205 is internally slidably connected to a movable rod 206, and one end of the movable rod 206 is fixedly connected to a movable frame 207, and the inner wall of the movable frame 207 is slidably connected to a movable plate 208.

[0052] like Figure 6 and Figure 7 As shown, in this embodiment, the bottom of the movable plate 208 is fixedly connected to a fixed plate 211, the side of the fixed plate 211 is fixedly connected to a supporting bracket 214, the outer ring surface of the supporting bracket 214 is fixedly connected to a lifting column 215, the top of the movable plate 208 is fixedly connected to a first contact 212, and the side wall of the movable frame 207 is fixedly connected to a second contact 213.

[0053] Specifically, when the sandblasting work of an engine cylinder is completed, the first motor 202 fixed on the side of the blocking plate 201 is started. When the first motor 202 is started, the fixed rotating shaft 203 is driven to rotate synchronously clockwise through the output shaft, and then the rotating gear 204 on the outer ring surface thereof is driven to rotate clockwise.

[0054] When the rotating gear 204 rotates clockwise, since the rotating gear 204 is in meshing state with the plurality of fixed columns 210, when the rotating gear 204 rotates clockwise, the fixed columns 210 drive the moving plate 208 fixed thereto to move synchronously. Since the moving plate 208 slides inside the moving frame 207, the moving plate 208 also drives the moving frame 207 to move synchronously with the moving plate 208. Since the moving rod 206 fixed on the side of the moving frame 207 slides on the limit block 207, the moving rod 206 is fixed on the side of the moving frame 207. 05, so when the rotating gear 204 rotates clockwise, the moving plate 208, the moving frame 207 and the moving rod 206 will move linearly along the guide of the limit block 205. At the same time, since the support bracket 214 is fixed to the bottom of the moving plate 208 through the fixed plate 211, when the moving plate 208 moves linearly, it will synchronously drive the support bracket 214 to move linearly, and then drive the multiple groups of lifting columns 215 fixed on the outer ring surface of the support bracket 214 to move synchronously.

[0055] When the rotating gear 204 is located at the upper part of the other side of the fixed column 210, the plurality of lifting columns 215 and the holes on the filter plate 104 are on the same vertical plane. At this time, the first motor 202 will continue to rotate clockwise. At this time, the rotating shaft 203 will be blocked by another arc-shaped stopper 209 during its rotation. At the same time, since the outer ring surface of the rotating gear 204 is always meshed with the fixed column 210 on the same horizontal plane, the fixed column 210 on the other side will gradually move to the upper part of the rotating gear 204 when the rotating gear 204 continues to rotate, thereby driving the moving plate 208 to move straight along the guide groove on the side wall of the moving frame 207. The line is lifted, which can drive all the lifting columns 215 to be lifted. When the rotating shaft 203 and the center of a fixed column 210 on the other side are in the same vertical plane, the first contact point 212 fixed on the top of the movable plate 208 will be against the second contact point 213. At the same time, since the size of the lifting column 215 is adapted to the size of the hole on the filter plate 104, the oil stains attached to the inner wall of the hole of the filter plate 104 can be gradually ejected during the lifting of the lifting column 215, thereby improving the working efficiency of the equipment and extending the service life of the filter plate 104, thereby reducing the replacement frequency of the filter plate 104 and reducing the production cost of the enterprise.

[0056] When the rotating gear 204 rotates counterclockwise, the moving plate 208 will gradually move downward along the guide groove on the inner wall of the moving frame 207, and in the process of movement, drive all the lifting columns 215 to gradually separate from the holes of the filter plate 104 through the fixed plate 211. When the rotating gear 204 continues to rotate counterclockwise, the moving plate 208 will gradually return to the initial state against the moving frame 207, thereby driving all the lifting columns 215 to return to the initial position through the fixed plate 211. When the lifting columns 215 return to the initial position, they will not be on the same vertical plane as the holes on the filter plate 104, thereby avoiding obstruction of the filter plate 104 during filtering, and at the same time protecting the reciprocating lifting mechanism 2.

[0057] like Figure 8 and Fig. 9 As shown, the reciprocating lifting mechanism 2 described in this embodiment is provided with a reciprocating pushing mechanism 3 for collecting oil stains on the side, and the reciprocating pushing mechanism 3 includes an inclined baffle plate 301, and the inclined baffle plate 301 is fixedly connected to the side of the blocking plate 201, and the side of the blocking plate 201 is fixedly connected with an electric guide rail 302, and the electric guide rail 302 is slidably connected with a sliding block 303 inside, and the side wall of the sliding block 303 is fixedly connected with a connecting rod 304, and the bottom of the connecting rod 304 is fixedly connected with a pushing plate 305, and the side wall of the sandblasting box 102 is penetrated by a discharge port 306, and the side wall of the sandblasting box 102 is fixedly connected with a storage box 307.

[0058] Specifically, when the first contact 212 and the second contact 213 are in contact with each other, the electric guide rail 302 will be started. At this time, the electric guide rail 302 will drive the sliding block 303 sliding inside it to perform linear motion, and during the motion, it will synchronously drive the connecting rod 304 and the pushing plate 305 fixed thereto to move. At this time, the top of the lifting column 215 in the reciprocating lifting mechanism 2 is still flush with the top of the filter plate 104. At this time, the linear motion of the pushing plate 305 can push the ejected oil and the larger burrs and oxides left after filtering by the filter plate 104 through the discharge port 306 into the storage box 307, thereby preventing the pushing plate 305 from falling back into the holes of the filter plate 104 when pushing the oil, oxides and burrs, thereby further improving the working efficiency of the equipment.

[0059] Working principle: when the sandblasting work of an engine cylinder is completed, the first motor 202 fixed on the side of the blocking plate 201 is started. When the first motor 202 is started, it will drive the fixed rotating shaft 203 to rotate synchronously clockwise through the output shaft, and then drive the rotating gear 204 on its outer ring surface to rotate clockwise.

[0060] When the rotating gear 204 rotates clockwise, since the rotating gear 204 is in meshing state with the plurality of fixed columns 210, when the rotating gear 204 rotates clockwise, the fixed columns 210 drive the moving plate 208 fixed thereto to move synchronously. Since the moving plate 208 slides inside the moving frame 207, the moving plate 208 also drives the moving frame 207 to move synchronously with the moving plate 208. Since the moving rod 206 fixed on the side of the moving frame 207 slides on the limit block 207, the moving rod 206 is fixed on the side of the moving frame 207. 05, so when the rotating gear 204 rotates clockwise, the moving plate 208, the moving frame 207 and the moving rod 206 will move linearly along the guide of the limit block 205. At the same time, since the support bracket 214 is fixed to the bottom of the moving plate 208 through the fixed plate 211, when the moving plate 208 moves linearly, it will synchronously drive the support bracket 214 to move linearly, and then drive the multiple groups of lifting columns 215 fixed on the outer ring surface of the support bracket 214 to move synchronously.

[0061] When the rotating gear 204 is located at the upper part of the other side of the fixed column 210, the plurality of lifting columns 215 and the holes on the filter plate 104 are on the same vertical plane. At this time, the first motor 202 will continue to rotate clockwise. At this time, the rotating shaft 203 will be blocked by another arc-shaped stopper 209 during its rotation. At the same time, since the outer ring surface of the rotating gear 204 is always meshed with the fixed column 210 on the same horizontal plane, the fixed column 210 on the other side will gradually move to the upper part of the rotating gear 204 when the rotating gear 204 continues to rotate, thereby driving the moving plate 208 to move straight along the guide groove on the side wall of the moving frame 207. The line is lifted, which can drive all the lifting columns 215 to be lifted. When the rotating shaft 203 and the center of a fixed column 210 on the other side are in the same vertical plane, the first contact point 212 fixed on the top of the movable plate 208 will be against the second contact point 213. At the same time, since the size of the lifting column 215 is adapted to the size of the hole on the filter plate 104, the oil stains attached to the inner wall of the hole of the filter plate 104 can be gradually ejected during the lifting of the lifting column 215, thereby improving the working efficiency of the equipment and extending the service life of the filter plate 104, thereby reducing the replacement frequency of the filter plate 104 and reducing the production cost of the enterprise.

[0062] When the rotating gear 204 rotates counterclockwise, the moving plate 208 will gradually move downward along the guide groove on the inner wall of the moving frame 207, and in the process of movement, drive all the lifting columns 215 to gradually separate from the holes of the filter plate 104 through the fixed plate 211. When the rotating gear 204 continues to rotate counterclockwise, the moving plate 208 will gradually return to the initial state against the moving frame 207, thereby driving all the lifting columns 215 to return to the initial position through the fixed plate 211. When the lifting columns 215 return to the initial position, they will not be on the same vertical plane as the holes on the filter plate 104, thereby avoiding obstruction of the filter plate 104 during filtering, and at the same time protecting the reciprocating lifting mechanism 2.

[0063] When the first contact 212 and the second contact 213 are in contact with each other, the electric guide rail 302 will be started. At this time, the electric guide rail 302 will drive the sliding block 303 sliding inside it to perform linear motion, and during the motion, it will synchronously drive the connecting rod 304 and the pushing plate 305 fixed thereto to move. At this time, the top of the lifting column 215 in the reciprocating lifting mechanism 2 is still flush with the top of the filter plate 104. At this time, the linear motion of the pushing plate 305 can push the ejected oil and the larger burrs and oxides left after filtering by the filter plate 104 through the discharge port 306 into the storage box 307, thereby preventing the pushing plate 305 from falling back into the holes of the filter plate 104 when pushing the oil, oxides and burrs, thereby further improving the working efficiency of the equipment.

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A magnesium alloy engine cylinder block preparation process, including raw material preparation, smelting, casting, heat treatment, machining, sandblasting and coating treatment, characterized in that: Sandblasting includes the following steps: Step 1: Place the machined engine block into the sandblasting machine body (1); Step 2: starting the first motor (202) to drive the rotating gear (204) to rotate, and while the rotating gear (204) is rotating, driving the plurality of lifting columns (215) through the moving plate (208) to eject the oil stains attached to the inner annular surface of the hole of the filter plate (104); Step 3: By abutting the first contact point (212) against the second contact point (213), the electric guide rail (302) is started to drive the push plate (305) to move horizontally against the upper surface of the filter plate (104), and the oil and dirt ejected by the lifting column (215) in the reciprocating lifting mechanism (2) is pushed into the interior of the storage box (307); Step 4: When the reciprocating pushing mechanism (3) completes its work, the first motor (202) in the reciprocating lifting mechanism (2) will rotate in the reverse direction, and at the same time will drive the multiple groups of lifting columns (215) to synchronously return to the initial position. At this time, the multiple groups of lifting columns (215) are not located directly below the holes of the filter plate (104).

2. A process for preparing a magnesium alloy engine cylinder block according to claim 1, characterized in that: In step one, the engine block, the filter plate (104) and the lifting column (215) are arranged in a top-down order on the same vertical plane.

3. The process for preparing a magnesium alloy engine cylinder block according to claim 1, characterized in that: In step 2, when the equipment is in the process of sandblasting, the first motor (202) is started, and the output shaft of the first motor (202) drives the rotating gear (204) to rotate clockwise through the rotating shaft (203).

4. A process for preparing a magnesium alloy engine cylinder block according to claim 3, characterized in that: When the rotating gear (204) rotates clockwise, the movable plate (208) is driven to move horizontally through the fixed column (210), thereby driving the lifting column (215) to move to the position directly below the hole of the filter plate (104).

5. A process for preparing a magnesium alloy engine cylinder block according to claim 4, characterized in that: When the lifting column (215) moves to the bottom of the hole of the filter plate (104), the rotating gear (204) is located above one side of the fixed column (210). At this time, the first motor (202) rotates clockwise and is blocked by another arc-shaped stopper (209) during the rotation. At the same time, the outer ring surface of the rotating gear (204) is always meshed with a fixed column (210) on the same horizontal plane. At this time, when the rotating gear (204) continues to rotate, the fixed column (210) on the other side will move to the upper part of the rotating gear (204), thereby driving the moving plate (208) to move upward along the guide groove on the inner side of the moving frame (207). Through the cooperation of the rotating gear (204), the fixed column (210) and the arc-shaped stopper (209), the moving plate (208) is transformed from horizontal to vertical movement.

6. A process for preparing a magnesium alloy engine cylinder block according to claim 5, characterized in that: When the movable plate (208) moves vertically along the slide groove provided on the inner side of the movable frame (207), the fixed plate (211) will synchronously drive the multiple groups of lifting columns (215) to move synchronously, and during the movement, the oil stains attached to the inner annular surface of the hole of the filter plate (104) are ejected.

7. A process for preparing a magnesium alloy engine cylinder block according to claim 6, characterized in that: In step three, when the first contact point (212) and the second contact point (213) are in contact with each other, the electric guide rail (302) is started. At this time, the electric guide rail (302) will synchronously drive the push plate (305) through the sliding block (303) to push the lifted oil stains away from the surface of the filter plate (104).

8. A process for preparing a magnesium alloy engine cylinder block according to claim 7, characterized in that: When the reciprocating pushing mechanism (3) pushes away the oil dirt ejected by the reciprocating lifting mechanism (2), the lifting column (215) is still in the hole of the filter plate (104), so that the ejected oil dirt will not fall back into the hole of the filter plate (104).

9. A process for preparing a magnesium alloy engine cylinder block according to claim 8, characterized in that: In step 4, when the reciprocating pushing mechanism (3) completes its work, the first motor (202) rotates counterclockwise, and the fixed column (210) moves from the top of the rotating gear (204) to the bottom of the rotating gear (204), and simultaneously drives the moving plate (208) to move downward, and the lifting column (215) will be separated from the hole of the filter plate (104).

10. A process for preparing a magnesium alloy engine cylinder block according to claim 9, characterized in that: When the fixed column (210) gradually moves from the top of the rotating gear (204) to the bottom of the rotating gear (204), the first motor (202) rotates counterclockwise and drives the movable plate (208) to move synchronously through the fixed column (210) while rotating. When the rotating gear (204) moves to the top of the fixed column (210) on the other side, the multiple groups of lifting columns (215) are not located directly below the hole of the filter plate (104).

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