High-strength light-weight motorcycle engine cover and casting process thereof

Abstract

The invention relates to the technical field of motorcycle engine cover production, in particular to a high-strength light-weight motorcycle engine cover and a casting process thereof.The manufacturing of a cover plate body is completed through a die casting machine, and the appearance of the cover plate body is processed through cover processing equipment and finish machining equipment; and transportation equipment and a plurality of mechanical arms are used for being matched with manual work to complete transferring of the machine cover plate body. According to the high-strength light-weight motorcycle engine cover and the casting process thereof, in the downward moving process of the overall structure of the polishing mechanism, flashes on the edge of the engine cover plate body can be cleaned through the moving frame body, and after a butt joint gear in the stirring part makes contact with a fixed toothed plate, the polishing part can be driven to move up and down as a whole; and burrs on the edge of the machine cover plate body are polished, so that the working intensity is reduced, and meanwhile, the product quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of motorcycle engine cover production, in particular to a high-strength and lightweight motorcycle engine cover and a casting process thereof. Background Art

[0002] The casting of high-strength and lightweight motorcycle engine covers achieves weight reduction while maintaining or improving its structural strength by selecting lightweight and high-strength materials such as aluminum alloy and carbon fiber, combined with advanced casting processes such as vacuum die-casting technology and oxygen-filled die-casting technology.

[0003] The patent application number CN201922479329.1 discloses an automated processing production line for motorcycle engine case covers, including a manual loading and unloading area, a left cover processing area, a right cover processing area, and a finishing area. The left cover processing area and the right cover processing area are located on both sides of the manual loading and unloading area, respectively. The left cover processing area includes a first robot for transporting the left cover, a first machine tool group for processing the left cover, and a first conveyor line for conveying the left cover. The production line can save multiple manpower, reduce labor costs, and at the same time improve the degree of automation and processing efficiency, reduce the labor intensity of workers, and ensure product quality.

[0004] In the current die-casting production process of motorcycle engine covers, the insufficient matching accuracy between the upper and lower dies in the mold design leads to excessive gaps, which makes it easy for molten metal to leak through these gaps during high-pressure injection, thereby forming unnecessary flash and burrs on the edges of the finished products. These defects need to be post-processed manually one by one, which not only significantly increases the workload of production personnel, but also restricts the improvement of the overall automation level of the production line. In addition, during the manual removal of flash, the knocking force is difficult to control evenly, which often causes product damage and affects the final quality.

[0005] In view of this, we propose a high-strength and lightweight motorcycle engine cover and a casting process thereof. Summary of the invention

[0006] The object of the present invention is to provide a high-strength and lightweight motorcycle engine cover and a casting process thereof, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, on the one hand, the present invention provides a high-strength and lightweight motorcycle engine cover casting process, comprising the following steps: S1. First, the molten iron is sent into the die-casting machine by a mechanical arm. After the die-casting machine is started, the molten iron is die-cast into the shape of the machine cover plate; S2. Then, the robot arm takes out the initially formed cover plate from the inside of the die-casting machine, places it on the conveyor belt of the conveyor equipment, and transports it toward the cover processing equipment; S3. Subsequently, the operator standing beside the transport equipment places the initially formed cover plate on the top surface of the placement mold, and controls the telescopic cylinder to drive the grinding mechanism to press down as a whole; S4, at the initial stage of downward movement of the grinding mechanism, the movable tooth plate contacts the structure in the transmission part, and drives the rotating screw to rotate, thereby allowing the placement mechanism to transport the initially formed cover plate to move directly below the grinding mechanism; S5. Afterwards, the pressing plate will press against the top surface of the initially formed cover plate body, and the moving frame body that continues to move downward will clean the flash on the edge of the cover plate body; S6. Subsequently, the docking gear in the shifting part will conflict with the fixed gear plate, and after the dial is rotated, the burrs on the edge of the cover plate body are polished by the polishing part; S7. After the flash and burrs are cleaned, the operator controls the telescopic cylinder to drive the grinding mechanism to move upward as a whole. During the upward movement, the placement mechanism moves the processed cover plate to the outside of the grinding mechanism. S8. Then, the operator puts the processed cover plate back on the top of the transport equipment, and the rear robotic arm sends the processed cover plate into the finishing equipment to complete the punching and painting operations of the cover plate, thereby completing the preparation of the cover plate; In the above steps, the die-casting machine is used to prepare the cover plate, the cover processing equipment and finishing equipment are used to process the appearance of the cover plate, and the transport equipment and several mechanical arms are used to cooperate with manual work to complete the transfer of the cover plate; The cover processing equipment includes a fixing mechanism, a grinding mechanism arranged inside the fixing mechanism, and a placing mechanism for placing the cover plate body; The fixing mechanism includes a telescopic cylinder that drives the grinding mechanism to move up and down, a transmission part that moves with the movement of the internal structure of the grinding mechanism, a rotating screw that rotates itself with the movement of the transmission part, and a fixed tooth plate that contacts the internal structure of the grinding mechanism; The grinding mechanism comprises a moving part, a toggle part arranged inside the moving part near the top, and a grinding part that moves up and down as the internal structure of the toggle part moves; The moving part includes a moving frame, a moving tooth plate for contacting the internal structure of the transmission part, a plurality of regularly distributed limit telescopic rods, a jacket spring sleeved on the outer side of the limit telescopic rods, and a pressing plate for pressing down the cover plate body; The shifting part includes a rotating shaft, a docking gear arranged at the end of the rotating shaft and used to rotate after contacting with the fixed tooth plate, a rotating rod rotating as the rotating shaft rotates, and a dial driving the grinding part to move up and down as the rotating rod rotates; The placement mechanism comprises a moving platform that transports the cover plate body toward or away from the grinding mechanism as the rotating screw rotates, and a placement mold that is arranged above the moving platform and is used to place the cover plate body.

[0008] In the technical solution of the present invention, the fixing mechanism also includes a fixed base plate for providing a mobile platform for the placing mechanism and a fixed frame for providing a fixed platform for the telescopic cylinder. Limiting slide grooves are provided on the inner frame walls at both ends of the fixed frame. A frame wall through groove for providing a moving range for the internal structure of the grinding mechanism is provided on the rear end groove wall of the fixed frame. The rear end of the rotating screw extends to the rear side of the fixed frame, and the fixed tooth plate is clamped and fixed at the middle section of the inner wall of the fixed frame.

[0009] In the technical solution of the present invention, the transmission part includes a transmission gear rotatably connected to the rear side wall of the fixed frame, two sets of pulleys arranged in parallel up and down, and a transmission belt sleeved between the two sets of pulleys. The upper pulley rotates with the rotation of the center rod of the transmission gear, and the lower pulley drives the rotating screw to rotate through its own rotation.

[0010] In the technical solution of the present invention, the moving frame moves with the movement of the telescopic rod of the telescopic cylinder, and the outer walls at the left and right ends of the moving frame are integrally formed with a limit frame slidably connected to the limit slide groove. The moving gear plate is clamped and fixed on the rear side wall of the moving frame and meshes with the transmission gear. A partition plate is integrally formed at the inner side wall of the moving frame near the top.

[0011] In the technical solution of the present invention, one end of the limiting telescopic rod is clamped on the bottom surface of the partition plate, and the other end is clamped on the top surface of the pressure plate. One end of the outer sleeve spring is connected to the bottom surface of the partition plate, and the other end is connected to the top surface of the pressure plate. The elastic force provided by the outer sleeve spring can push the pressure plate to drive the limiting telescopic rod to the maximum telescopic length.

[0012] In the technical solution of the present invention, the front and rear ends of the rotating shaft are respectively rotatably connected to the inner side walls of the front and rear ends of the moving frame, the docking gear is clamped at the end position of the moving frame extending from the rear end of the rotating shaft, and a worm is sleeved on the outer side wall of the rotating shaft and rotates therewith.

[0013] In the technical solution of the present invention, the left and right ends of the rotating rod are respectively rotatably connected to the inner walls of the left and right ends of the moving frame, the outer wall of the rotating rod is sleeved with a worm wheel meshing with the worm, the dial is rotatably connected to the outer wall of the moving frame, and a synchronous belt is sleeved between the end of the rotating rod and the convex shaft outside the dial.

[0014] In the technical solution of the present invention, the polishing part includes a movable frame slidably connected to the inner wall of the movable frame, a polishing frame for polishing burrs on the edge of the cover plate, and a connecting strip for fixedly connecting the polishing frame and the movable frame. The outer walls at the left and right ends of the movable frame are provided with frame slide grooves for providing a moving range for the inner convex shaft of the dial, and the internal dimensions of the polishing frame are just matched with the dimensions of the pressure plate.

[0015] In the technical solution of the present invention, the movable platform is slidably connected to the top surface of the fixed base plate and is threadedly connected to two rotating screws. The longitudinal cross-section of the movable platform is a right-angled trapezoid so that the burrs of the cover plate can be discharged from the interior of the fixed frame along the slope of the top surface. A mounting rod is integrally formed on the top of the movable platform to provide a card connection point for placing the mold.

[0016] On the other hand, the present invention also provides a high-strength and lightweight motorcycle engine hood, which is made by the above-mentioned high-strength and lightweight motorcycle engine hood casting process; it includes a hood plate body, the hood plate body includes a fixed plate body, a reinforcing ring body integrally formed at the end of the fixed plate body to ensure the overall strength of the fixed plate body, an outer sleeve cover integrally formed under the reinforcing ring body and having a thickness less than the reinforcing ring body, and a number of reinforcing ribs regularly distributed on the top surface of the fixed plate body.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The high-strength and lightweight motorcycle engine cover and its casting process, in the process of the overall structure of the grinding mechanism moving downward, the flash on the edge of the engine cover plate can be cleaned by moving the frame, and after the docking gear in the toggle part contacts the fixed gear plate, it can drive the grinding part to move up and down as a whole, and grind the burrs on the edge of the engine cover plate, thereby reducing the work intensity and improving the product quality.

[0018] 2. The high-strength and lightweight motorcycle engine cover and its casting process, while the telescopic cylinder controls the overall up and down movement of the grinding mechanism, the moving tooth plate in the moving part can drive the internal structure of the transmission part to move, and drive the placement mechanism to transport the cover plate body in and out of the fixed frame, while reducing the investment in additional drive equipment and further improving the overall automation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial structural schematic diagram of the present invention; Figure 3 It is a schematic cross-sectional view of the structure of the fixing mechanism in the present invention; Figure 4 It is a structural schematic diagram of the fixing mechanism in the present invention; Figure 5 It is a schematic diagram of the structural disassembly of the transmission part in the present invention; Figure 6 It is a schematic cross-sectional view of the structure of the grinding mechanism in the present invention; Figure 7 It is a schematic cross-sectional view of the structure of the moving part in the present invention; Figure 8 It is a structural schematic diagram of the toggle part in the present invention; Fig. 9 It is a structural schematic diagram of the grinding part in the present invention; Fig.10 It is a structural schematic diagram of the placement mechanism in the present invention; Fig.11 It is a structural schematic diagram of the cover plate body in the present invention; Description of reference numerals: 100. Die casting machine; 200, machine cover processing equipment; 210, fixing mechanism; 211, fixing bottom plate; 212, fixing frame; 2120, limiting slide groove; 2121, frame wall through groove; 213, telescopic cylinder; 214, transmission part; 2140, transmission gear; 2141, pulley; 2142, transmission belt; 215, rotating screw; 216, fixing tooth plate; 220, grinding mechanism; 221, moving part; 2210, moving frame; 2211, limiting frame; 2212, moving tooth plate; 2213 , spacer plate; 2214, limit telescopic rod; 2215, outer jacket spring; 2216, pressure plate; 222, toggle part; 2220, rotating shaft; 2221, worm; 2222, docking gear; 2223, rotating rod; 2224, worm wheel; 2225, dial; 2226, synchronous belt; 223, polishing part; 2230, movable frame; 2231, polishing frame; 2232, connecting strip; 230, placing mechanism; 231, moving table; 232, mounting rod; 233, placing mold; 300. Finishing equipment; 400. Transportation equipment; 500. Robotic arm; 600, machine cover plate body; 610, fixed plate body; 620, reinforcing ring body; 630, outer cover; 640, reinforcing ribs. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 11 As shown, this embodiment provides a technical solution: A high-strength and lightweight motorcycle engine cover casting process comprises the following steps: S1. First, the molten iron is fed into the die-casting machine 100 by the robot arm 500. After the die-casting machine 100 is started, the molten iron is die-cast into the shape of the machine cover plate body 600. S2. Next, the robot arm 500 takes out the preliminarily formed cover plate 600 from the die-casting machine 100, places it on the conveyor belt of the conveyor device 400, and transports it toward the cover processing device 200. S3. Subsequently, the operator standing beside the transport device 400 places the preliminarily formed cover plate 600 on the top surface of the placement mold 233, and controls the telescopic cylinder 213 to drive the grinding mechanism 220 to press down as a whole; S4, at the initial stage of the downward movement of the grinding mechanism 220, the movable tooth plate 2212 contacts the structure in the transmission part 214, and drives the rotating screw 215 to rotate, so that the placing mechanism 230 transports the initially formed cover plate 600 to move directly below the grinding mechanism 220; S5. Afterwards, the pressing plate 2216 presses against the top surface of the initially formed cover plate 600, and the moving frame 2210 that continues to move downward cleans the flash on the edge of the cover plate 600; S6. Subsequently, the docking gear 2222 in the toggle portion 222 will come into conflict with the fixed tooth plate 216, and after the dial 2225 is rotated, the burrs on the edge of the cover plate body 600 are polished by the polishing portion 223; S7, after finishing cleaning the flash and burrs, the operator controls the telescopic cylinder 213 to drive the grinding mechanism 220 to move upward as a whole, and during the upward movement, the placement mechanism 230 moves the processed cover plate 600 to the outside of the grinding mechanism 220; S8. Then, the operator puts the processed machine cover panel 600 back onto the top of the transport equipment 400, and the rear-end robotic arm 500 sends the processed machine cover panel 600 into the finishing equipment 300, and then completes the punching and painting operations of the machine cover panel 600, thereby completing the preparation of the machine cover panel 600.

[0022] In this embodiment, Figure 1 As shown, the above steps use a die-casting machine 100 to complete the preparation of the cover plate 600, the appearance of the cover plate 600 is processed by the cover processing equipment 200 and the finishing equipment 300, and the transportation equipment 400 and a plurality of mechanical arms 500 are used to cooperate with manual work to complete the transfer of the cover plate 600; Furthermore, the die-casting machine 100 is used to form the molten metal into a preliminary shape of the machine cover plate 600 under a high-pressure environment, the machine cover processing equipment 200 is used to process the flash and burrs on the edge of the machine cover plate 600, and the finishing equipment 300 is used to perform further processing such as drilling, painting, and polishing on the machine cover plate 600.

[0023] In this embodiment, Figure 2-Figure 5 As shown, the cover processing device 200 includes a fixing mechanism 210, a grinding mechanism 220 disposed inside the fixing mechanism 210, and a placing mechanism 230 for placing the cover plate body 600; Specifically, the fixing mechanism 210 includes a telescopic cylinder 213 that drives the grinding mechanism 220 to move up and down, a transmission part 214 whose internal structure moves as the grinding mechanism 220 moves, a rotating screw rod 215 that rotates itself as the transmission part 214 moves, and a fixed tooth plate 216 that contacts the internal structure of the grinding mechanism 220.

[0024] Furthermore, the fixing mechanism 210 also includes a fixed base plate 211 for providing a mobile platform for the placement mechanism 230 and a fixed frame 212 for providing a fixed platform for the telescopic cylinder 213. Limiting slide grooves 2120 are provided on the inner frame walls at both ends of the fixed frame 212. A frame wall through groove 2121 is provided on the rear end groove wall of the fixed frame 212 for providing a moving range for the internal structure of the grinding mechanism 220. The rear end of the rotating screw 215 extends to the rear side of the fixed frame 212, and the fixed tooth plate 216 is clamped and fixed at the middle section of the inner wall of the fixed frame 212.

[0025] Furthermore, the transmission part 214 includes a transmission gear 2140 rotatably connected to the rear side wall of the fixed frame 212, two sets of pulleys 2141 arranged in parallel up and down, and a transmission belt 2142 sleeved between the two sets of pulleys 2141. The upper pulley 2141 rotates with the rotation of the center rod of the transmission gear 2140, and the lower pulley 2141 drives the rotating screw 215 to rotate through its own rotation.

[0026] Furthermore, the fixed base plate 211 and the fixed frame 212 are used to ensure the strength of the overall structure of the fixing mechanism 210. After the transmission gear 2140 in the transmission part 214 rotates, the pulley 2141 located above will rotate. After the power is transmitted through the transmission belt 2142, the pulley 2141 located below will be driven to rotate. After the rotating screw rod 215 rotates, it is used to change the overall position of the placement mechanism 230.

[0027] In this embodiment, Figure 6-Figure 7As shown, the grinding mechanism 220 includes a moving portion 221, a toggle portion 222 disposed inside the moving portion 221 near the top, and a grinding portion 223 that moves up and down as the internal structure of the toggle portion 222 moves; Specifically, the moving part 221 includes a moving frame 2210, a moving tooth plate 2212 for contacting the internal structure of the transmission part 214, a plurality of regularly distributed limiting telescopic rods 2214, a jacket spring 2215 sleeved on the outside of the limiting telescopic rods 2214, and a pressure plate 2216 for pressing down the cover plate 600.

[0028] Furthermore, the movable frame 2210 moves with the movement of the telescopic rod of the telescopic cylinder 213, and a limit frame 2211 slidably connected to the limit slide groove 2120 is integrally formed on the outer walls at the left and right ends of the movable frame 2210. The movable tooth plate 2212 is clamped and fixed on the rear side wall of the movable frame 2210 and meshes with the transmission gear 2140. A partition plate 2213 is integrally formed on the inner wall of the movable frame 2210 near the top.

[0029] Furthermore, one end of the limiting telescopic rod 2214 is clamped on the bottom surface of the partition plate 2213, and the other end is clamped on the top surface of the pressure plate 2216. One end of the outer sleeve spring 2215 is connected to the bottom surface of the partition plate 2213, and the other end is connected to the top surface of the pressure plate 2216. The elastic force provided by the outer sleeve spring 2215 can push the pressure plate 2216 to drive the limiting telescopic rod 2214 to the maximum telescopic length.

[0030] Furthermore, the movable frame 2210 uses the strength of its own structure to clean the flash on the edge of the cover plate 600 by pressing down. The limit frame 2211 is used to limit the range of movement of the movable frame 2210 inside the fixed frame 212. The movable tooth plate 2212 is used to drive the transmission gear 2140 to rotate after contacting it. The spacer plate 2213 is used to provide a rotation range for the structure in the toggle part 222. Under the elastic force of the outer spring 2215, the pressure plate 2216 presses against the top surface of the cover plate 600 when the movable frame 2210 continues to move downward. At the same time, through its own adaptability to the size of the cover plate 600, the movable frame 2210 is prevented from causing damage to the main body of the cover plate 600 when cleaning the flash.

[0031] In this embodiment, Figure 8 As shown, the toggle portion 222 includes a rotating shaft 2220, a docking gear 2222 disposed at the end of the rotating shaft 2220 for contacting with the fixed tooth plate 216 to rotate, a rotating rod 2223 that rotates as the rotating shaft 2220 rotates, and a dial 2225 that drives the grinding portion 223 to move up and down as the rotating rod 2223 rotates; Specifically, the front and rear ends of the rotating shaft 2220 are rotatably connected to the inner side walls of the front and rear ends of the moving frame 2210 respectively, the docking gear 2222 is clamped at the end position of the rotating shaft 2220 extending out of the moving frame 2210 at the rear end, and a worm 2221 is sleeved on the outer side wall of the rotating shaft 2220 and rotates therewith.

[0032] Furthermore, the left and right ends of the rotating rod 2223 are respectively rotatably connected to the inner walls of the left and right ends of the moving frame 2210, the outer wall of the rotating rod 2223 is sleeved with a worm wheel 2224 meshing with the worm 2221, the dial 2225 is rotatably connected to the outer wall of the moving frame 2210, and a synchronous belt 2226 is sleeved between the end of the rotating rod 2223 and the convex shaft outside the dial 2225.

[0033] Furthermore, the docking gear 2222 rotates after contacting the fixed tooth plate 216, thereby driving the rotating shaft 2220 and the worm 2221 to rotate. The worm 2221 then contacts the worm wheel 2224, thereby driving the rotating rod 2223 to rotate. After the power is transmitted through the synchronous belts 2226 at both ends, the dial 2225 is driven to rotate.

[0034] In this embodiment, Fig. 9 As shown, the polishing part 223 includes a movable frame 2230 slidably connected to the inner wall of the movable frame 2210, a polishing frame 2231 for polishing the burrs on the edge of the cover plate 600, and a connecting strip 2232 for fixedly connecting the polishing frame 2231 and the movable frame 2230. The outer walls at the left and right ends of the movable frame 2230 are provided with frame slide grooves for providing a moving range for the inner convex shaft of the dial 2225. The inner size of the polishing frame 2231 is just adapted to the size of the pressing plate 2216. Furthermore, after the dial 2225 rotates, the inner convex shaft of the dial 2225 continuously moves in the frame slide groove of the movable frame 2230, thereby driving the movable frame 2230 and the grinding frame 2231 to move up and down, thereby grinding the burrs on the edge of the cover plate 600.

[0035] In this embodiment, Fig.10 As shown, the placement mechanism 230 includes a moving platform 231 that transports the cover plate body 600 toward or away from the grinding mechanism 220 as the rotating screw 215 rotates, and a placement mold 233 that is arranged above the moving platform 231 and is used to place the cover plate body 600; Specifically, the movable platform 231 is slidably connected to the top surface of the fixed base plate 211 and is threadedly connected to the two rotating screws 215. The longitudinal cross-section of the movable platform 231 is a right-angled trapezoid so that the burrs on the cover plate 600 can be discharged from the interior of the fixed frame 212 along the slope of the top surface. The top of the movable platform 231 is integrally formed with a mounting rod 232 for providing a card connection point for placing the mold 233.

[0036] Furthermore, after the screw rod 215 is rotated, the position of the movable platform 231 will change on the top surface of the fixed base plate 211, and the mounting rod 232 is used to facilitate the replacement of different placement molds 233. The placement mold 233 is compatible with the model of the cover plate body 600, and it is also convenient for the operator to position.

[0037] The present invention also provides a high-strength and lightweight motorcycle engine cover, which is made by the above-mentioned high-strength and lightweight motorcycle engine cover casting process, and includes a cover plate body 600, the cover plate body 600 includes a fixed plate body 610, a reinforcing ring body 620 integrally formed at the end of the fixed plate body 610 to ensure the overall strength of the fixed plate body 610, an outer cover 630 integrally formed below the reinforcing ring body 620 and having a thickness less than the reinforcing ring body 620, and a plurality of reinforcing ribs 640 regularly distributed on the top surface of the fixed plate body 610; Furthermore, the fixed plate 610 and the outer cover 630 are designed with reduced thickness, so that the overall weight of the cover plate 600 is reduced. At the same time, the reinforcing ring 620 and a number of regularly and densely distributed reinforcing ribs 640 are used to ensure the strength of the overall structure of the cover plate 600.

[0038] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. A high-strength and lightweight motorcycle engine cover casting process, characterized in that: The following steps are involved: S1. First, the molten iron is sent into the die-casting machine by a mechanical arm. After the die-casting machine is started, the molten iron is die-cast into the shape of the machine cover plate; S2. Then, the robot arm takes out the initially formed cover plate from the inside of the die-casting machine, places it on the conveyor belt of the conveyor equipment, and transports it toward the cover processing equipment; S3. Subsequently, the operator standing beside the transport equipment places the initially formed cover plate on the top surface of the placement mold, and controls the telescopic cylinder to drive the grinding mechanism to press down as a whole; S4, at the initial stage of downward movement of the grinding mechanism, the movable tooth plate contacts the structure in the transmission part, and drives the rotating screw to rotate, thereby allowing the placement mechanism to transport the initially formed cover plate to move directly below the grinding mechanism; S5, after that, the pressing plate will press against the top surface of the initially formed cover plate body, and the moving frame body that continues to move downward will clean the flash on the edge of the cover plate body; S6. Subsequently, the docking gear in the shifting part will conflict with the fixed gear plate, and after the dial is rotated, the burrs on the edge of the cover plate body are polished by the polishing part; S7. After the flash and burrs are cleaned, the operator controls the telescopic cylinder to drive the grinding mechanism to move upward as a whole. During the upward movement, the placement mechanism moves the processed cover plate to the outside of the grinding mechanism. S8. Then, the operator puts the processed cover plate back on the top of the transport equipment, and the rear robotic arm sends the processed cover plate into the finishing equipment to complete the punching and painting operations of the cover plate, thereby completing the preparation of the cover plate; In the above steps, a die-casting machine is used to prepare the engine cover plate, the appearance of the engine cover plate is processed by engine cover processing equipment and finishing equipment, and transportation equipment and several robotic arms are used in cooperation with manual labor to complete the transfer of the engine cover plate.

2. The high-strength and lightweight motorcycle engine cover casting process according to claim 1 is characterized in that: The cover processing equipment includes a fixing mechanism, a grinding mechanism arranged inside the fixing mechanism, and a placing mechanism for placing the cover plate body; The fixing mechanism includes a telescopic cylinder that drives the grinding mechanism to move up and down, a transmission part that moves with the movement of the internal structure of the grinding mechanism, a rotating screw that rotates itself with the movement of the transmission part, and a fixed tooth plate that contacts the internal structure of the grinding mechanism; The grinding mechanism comprises a moving part, a toggle part arranged inside the moving part near the top, and a grinding part that moves up and down as the internal structure of the toggle part moves; The moving part includes a moving frame, a moving tooth plate for contacting the internal structure of the transmission part, a plurality of regularly distributed limit telescopic rods, a jacket spring sleeved on the outer side of the limit telescopic rods, and a pressing plate for pressing down the cover plate body; The shifting part includes a rotating shaft, a docking gear arranged at the end of the rotating shaft and used to rotate after contacting with the fixed tooth plate, a rotating rod rotating as the rotating shaft rotates, and a dial driving the grinding part to move up and down as the rotating rod rotates; The placement mechanism comprises a moving platform that transports the cover plate body toward or away from the grinding mechanism as the rotating screw rotates, and a placement mold that is arranged above the moving platform and is used to place the cover plate body.

3. The high-strength and lightweight motorcycle engine cover casting process according to claim 2 is characterized in that: The fixing mechanism also includes a fixed bottom plate for providing a mobile platform for the placing mechanism and a fixed frame for providing a fixed platform for the telescopic cylinder. Limiting slide grooves are provided on the inner frame walls at both ends of the fixed frame. A frame wall through groove for providing a moving range for the internal structure of the grinding mechanism is provided on the rear end groove wall of the fixed frame. The rear end of the rotating screw extends to the rear side of the fixed frame, and the fixed tooth plate is clamped and fixed at the middle section of the inner wall of the fixed frame.

4. The high-strength and lightweight motorcycle engine cover casting process according to claim 3 is characterized in that: The transmission part includes a transmission gear rotatably connected to the rear side wall of the fixed frame, two sets of pulleys arranged in parallel up and down, and a transmission belt sleeved between the two sets of pulleys. The upper pulley rotates with the rotation of the center rod of the transmission gear, and the lower pulley drives the rotating screw to rotate through its own rotation.

5. The high-strength and lightweight motorcycle engine cover casting process according to claim 4 is characterized in that: The moving frame moves with the movement of the telescopic rod of the telescopic cylinder. The outer walls at the left and right ends of the moving frame are integrally formed with limit frames slidably connected to the limit sliding grooves. The moving gear plate is clamped and fixed on the rear side wall of the moving frame and meshes with the transmission gear. A partition plate is integrally formed at the inner side wall of the moving frame near the top.

6. The high-strength and lightweight motorcycle engine cover casting process according to claim 5, characterized in that: One end of the limiting telescopic rod is clamped on the bottom surface of the spacer plate, and the other end is clamped on the top surface of the pressure plate. One end of the outer sleeve spring is connected to the bottom surface of the spacer plate, and the other end is connected to the top surface of the pressure plate. The elastic force provided by the outer sleeve spring can push the pressure plate to drive the limiting telescopic rod to the maximum telescopic length.

7. The high-strength and lightweight motorcycle engine cover casting process according to claim 6 is characterized in that: The front and rear ends of the rotating shaft are respectively rotatably connected to the inner side walls of the front and rear ends of the moving frame, the docking gear is clamped at the end position of the rear end of the rotating shaft extending out of the moving frame, and a worm that rotates therewith is sleeved on the outer side wall of the rotating shaft; the left and right ends of the rotating rod are respectively rotatably connected to the inner side walls of the left and right ends of the moving frame, a worm wheel meshing with the worm is sleeved on the outer side wall of the rotating rod, the dial is rotatably connected to the outer side wall of the moving frame, and a synchronous belt is sleeved between the end of the rotating rod and the convex shaft outside the dial.

8. The high-strength and lightweight motorcycle engine cover casting process according to claim 7 is characterized in that: The polishing part includes a movable frame slidably connected to the inner wall of the movable frame, a polishing frame for polishing burrs on the edge of the cover plate, and a connecting strip for fixedly connecting the polishing frame and the movable frame. The outer walls at the left and right ends of the movable frame are provided with frame slide grooves for providing a moving range for the inner convex shaft of the dial. The internal size of the polishing frame is just matched with the size of the pressure plate.

9. The high-strength and lightweight motorcycle engine cover casting process according to claim 8, characterized in that: The movable platform is slidably connected to the top surface of the fixed base plate and is threadedly connected to two rotating screws. The longitudinal section of the movable platform is a right-angled trapezoid so that the burrs on the edge of the cover plate can be discharged from the interior of the fixed frame along the slope of the top surface. A mounting rod is integrally formed on the top of the movable platform to provide a card connection point for placing the mold.

10. A high-strength and lightweight motorcycle engine cover, manufactured by the high-strength and lightweight motorcycle engine cover casting process according to claim 9, comprising a cover plate body, characterized in that: The machine cover plate body includes a fixed plate body, a reinforcing ring body integrally formed at the end of the fixed plate body to ensure the overall strength of the fixed plate body, an outer sleeve cover integrally formed below the reinforcing ring body and having a thickness smaller than the reinforcing ring body, and a plurality of reinforcing ribs regularly distributed on the top surface of the fixed plate body.

Images