Surface polishing treatment device for nodular iron casting

Abstract

The invention belongs to the technical field of spheroidal graphite iron casting surface polishing, and particularly relates to a spheroidal graphite iron casting surface polishing treatment device which comprises an outer frame and a polishing table. A polishing table is arranged in the outer frame. A second sliding groove is formed in the top of the polishing table. A limiting rod is slidably connected into the second sliding groove. A first electric push rod is fixedly connected to the top of the limiting rod. The output end of the first electric push rod is rotationally connected with a first roller. Through the moving effect of the multiple sets of limiting rods, the placing position of the first rolling wheel can be changed according to the shape of the nodular iron casting, so that the adaptability of the equipment to the nodular iron castings of different specifications is improved, meanwhile, the angle of the nodular iron casting can be changed in the polishing process in cooperation with the rotating effect of the first rolling wheel, and the polishing efficiency is improved. And in cooperation with the control effect of a program, the moving effect on the nodular iron casting can be reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of surface polishing of ductile iron castings, and specifically relates to a surface polishing treatment device for ductile iron castings. Background Art

[0002] Ductile iron is a common high-strength cast iron material in modern society. Compared with traditional cast iron, due to the addition of other materials, ductile iron has higher strength, toughness and ductility, and is therefore widely involved in fields such as automobiles, construction, and mechanical parts.

[0003] Currently, in the prior art, ductile iron can break through the brittle limit of traditional cast iron through the spheroidal graphite structure, becoming an engineering material with both high strength and good plasticity. Moreover, in the recycling of scrap iron, the spheroidal graphite structure can be used to complete the recycling of waste materials.

[0004] In use, after the ductile iron casting is cooled and solidified in production, due to the presence of residual sand grains, scale or burrs on the surface, a polishing device can be used to process the surface of the ductile iron casting. At this time, due to the large difference in the shape of the ductile iron casting according to different molds, when performing polishing treatment, it is necessary for the staff to change its position to make the polishing position accurate, and the operation is relatively cumbersome. Therefore, a surface polishing treatment device for ductile iron castings is proposed for the above problems. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A surface polishing treatment device for ductile iron castings of the present invention includes an outer frame and a polishing table; a polishing table is arranged inside the outer frame; a second chute is opened at the top of the polishing table; a limiting rod is slidably connected inside the second chute; a first electric push rod is fixedly connected to the top of the limiting rod; a first roller is rotatably connected to the output end of the first electric push rod; a polishing device is fixedly connected above the inner part of the outer frame; a first chute is opened in the middle of the top of the polishing table; the middle part of the polishing table is in a through treatment, and a storage bin is slidably connected to the bottom of the outer frame; the top of the storage bin is located below the middle part of the polishing table.

[0007] Preferably, a partition plate is fixedly connected to the side wall of the middle part of the polishing table, and a plurality of groups of holes are opened on the surface of the partition plate; a separation plate is fixedly connected to the side wall of the middle part of the polishing table below the partition plate, and the separation plate is triangularly arranged; guiding plates are fixedly connected to the side walls of both sides of the polishing table below the separation plate; a filter screen is fixedly connected to the opposite side walls of a pair of guiding plates; a gathering plate is fixedly connected to the bottom surface of the middle part of the filter screen; a plurality of groups of third chutes are opened in the middle of the second chute, and the third chutes are communicated with the middle part of the polishing table.

[0008] Preferably, a plurality of positioning columns are fixedly connected to the middle of the partition plate; a limiting column is slidably connected inside the positioning column; a plurality of first spring rods are connected between the bottom of the limiting column and the side wall of the bottom of the positioning column; a plurality of first water pipes are fixedly connected to the bottom of the partition plate; the first spring rods are communicated with the positioning columns; a plurality of atomizing nozzles are arranged on the side wall of the limiting column.

[0009] Preferably, a plurality of arc-shaped plates are fixedly connected to the side wall of the end of the first roller; a push rod plate is slidably connected to the middle of the arc-shaped plate; a support plate is fixedly connected to the middle of the push rod plate; a placing plate is fixedly connected to the side wall of the bottom of the arc-shaped plate; a second electric push rod is hinged between the placing plate and the support plate.

[0010] Preferably, a limiting pipe is fixedly connected to the end of the push rod plate; a connecting ball is ball-jointed to the end of the limiting pipe; a fitting plate is fixedly connected to the side wall of the connecting ball; one ends of a plurality of second spring rods are hinged around the limiting pipe at the end of the push rod plate; the other ends of the second spring rods are hinged to the side wall of the fitting plate.

[0011] Preferably, a cavity is provided in the middle of the first roller, and a positioning ring is fixedly connected to the middle; a plurality of water storage grooves are arranged on the outer side wall of the positioning ring; a rubber plate is fixedly connected to the side wall of the water storage groove; a pressure rod is connected between the inner side wall of the first roller and the rubber plate; there is a thin film between the output end side wall of the pressure rod and the inside of the positioning ring, and there is a gas with thermal expansion and cold contraction between the thin film and the positioning ring; a second water pipe is fixedly connected inside the first electric push rod, and a threaded port is installed at the end of the first electric push rod.

[0012] Preferably, a fourth chute is fixedly connected to the middle of the positioning ring, and the inside of the fourth chute is a cavity; a collision column is fixedly connected to the middle of the first roller, and the collision column is located inside the fourth chute; a plurality of receiving plates are fixedly connected to the inner side wall of the fourth chute, and the side walls of the receiving plates are arc-shaped; a plurality of rolling columns are arranged inside the fourth chute.

[0013] Preferably, a second roller is rotatably connected to the bottom of the limiting rod; connecting plates are fixedly connected to both side walls of the limiting rod; a cleaning plate is fixedly connected to the side wall of the connecting plate, and the middle of the cleaning plate protrudes outwards and the two sides are triangular inclined surfaces.

[0014] Preferably, a spring plate is fixedly connected to the middle of the connecting plate; third spring rods are hinged between the top side wall of the connecting plate and the side wall of the limiting rod.

[0015] Preferably, a plurality of balls are rollably connected to the tops of the plurality of limiting columns.

[0016] The beneficial effects of the present invention are: 1. The present invention provides a surface polishing device for ductile iron castings. Through the moving effect of multiple groups of limiting rods, the placement position of the first roller can be changed according to the shape of the ductile iron casting itself, thereby increasing the self - adaptability of the device when facing ductile iron castings of different specifications. At the same time, with the rotating effect of the first roller, the angle of the ductile iron casting can be changed during the polishing process, so that the top polishing device can complete the polishing of the ductile iron casting. With the control effect of the program, the movement of the ductile iron casting can be reduced, improving work efficiency; 2. The present invention provides a surface polishing device for ductile iron castings. Due to the existence of the partition plate, it can further provide a supporting effect for the ductile iron casting to be processed. At the same time, with the flow - dividing effect of the separation plate and the guiding plate, the flowing coolant can smoothly enter the filter screen for filtration and then be put into the storage bin for subsequent secondary treatment. With the gathering effect of the gathering plate on the coolant, the water flow can flow downward in a water column shape in the middle of the filter screen, reducing the occurrence of splashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 is a three - dimensional view of the present invention; Figure 2 is a structural schematic diagram of the polishing table of the present invention; Figure 3 is a structural schematic diagram of the partition plate of the present invention; Figure 4 is a structural schematic diagram of the first roller of the present invention; Figure 5 is a cross - sectional view of the first roller of the present invention; Figure 6 is a three - dimensional view of the limiting rod of the present invention; Figure 7 is a structural schematic diagram of the arc - shaped plate of the present invention.

[0018] LEGEND DESCRIPTION: 1. External frame; 11. Polishing table; 12. Polishing device; 13. No. 1 electric push rod; 14. No. 1 roller; 15. No. 1 slide; 16. Storage bin; 17. No. 2 slide; 18. Limit rod; 2. No. 3 slide; 21. Separation plate; 22. Guide plate; 23. Filter screen; 24. Divider plate; 25. Gathering plate; 3. Positioning column; 31. Limit column; 32. No. 1 water pipe; 33. No. 1 spring rod; 34. Atomizing nozzle; 4. Curved plate; 41. Push rod Plate; 42, support plate; 43, No. 2 electric push rod; 44, placement plate; 5, fitting plate; 51, No. 2 spring rod; 52, connecting ball; 53, limit tube; 6, positioning ring; 61, water storage tank; 62, rubber plate; 63, pressure rod; 64, No. 2 water pipe; 7, No. 4 slide; 71, collision column; 72, receiving plate; 73, rolling column; 8, cleaning plate; 81, No. 2 roller; 82, connecting plate; 9, spring plate; 91, No. 3 spring rod; 101, ball. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of 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 of 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.

[0020] See also Figure 1-2As shown in the figure, a surface polishing device for ductile iron castings includes an external frame 1 and a polishing table 11; the polishing table 11 is arranged inside the external frame 1; a second chute 17 is opened at the top of the polishing table 11; a limiting rod 18 is slidably connected inside the second chute 17; a first electric push rod 13 is fixedly connected to the top of the limiting rod 18; the output end of the first electric push rod 13 is rotatably connected to a first roller 14; a polishing device 12 is fixedly connected above the inside of the external frame 1; a first chute 15 is opened in the middle at the top of the polishing table 11; the middle part of the polishing table 11 is in a through treatment, and a storage bin 16 is slidably connected to the bottom of the external frame 1; the top of the storage bin 16 is located below the middle part of the polishing table 11; during operation, when the staff performs surface polishing on ductile iron castings, the ductile iron casting to be processed can be placed below the polishing device 12. At this time, the output end of the first electric push rod 13 is controlled by a program to move, so that the first roller 14 clamps the ductile iron casting to be processed. And there is a clamping device on the side wall of the first roller 14 to limit the rotation of the first roller 14. At the same time, in the face of a cylindrical ductile iron casting to be processed, the position can be changed by moving the limiting rod 18, so that the cylinder can be placed in the first chute 15. Subsequently, the rotation effect of the first roller 14 drives the cylindrical ductile iron casting to rotate, so that the polishing device 12 completes the polishing of the ductile iron casting. At the same time, because the middle part of the polishing table 11 is connected to the storage bin 16, the impurities generated during the polishing process can fall into the storage bin 16 for storage. Through the moving effect of multiple groups of limiting rods 18 in this step, the placement position of the first roller 14 can be changed according to the shape of the ductile iron casting itself, thereby increasing the adaptability of the equipment to ductile iron castings of different specifications. At the same time, combined with the rotation effect of the first roller 14, the angle of the ductile iron casting can be changed during the polishing process, so that the top polishing device 12 can complete the polishing of the ductile iron casting. With the control effect of the program, the movement of the ductile iron casting can be reduced, and the work efficiency can be increased.

[0021] Please refer to Figure 1-3As shown, a partition plate 24 is fixedly connected to the middle side wall of the polishing table 11, and a plurality of groups of holes are formed on the surface of the partition plate 24; a separation plate 21 is fixedly connected to the middle side wall of the polishing table 11 below the partition plate 24, and the separation plate 21 is triangularly arranged; guide plates 22 are fixedly connected to the two side walls of the polishing table 11 below the separation plate 21; a filter screen 23 is fixedly connected to the corresponding side walls of a pair of the guide plates 22; a converging plate 25 is fixedly connected to the bottom surface of the middle of the filter screen 23; a plurality of groups of third chutes 2 are formed in the middle of the second chute 17, and the third chutes 2 communicate with the middle of the polishing table 11; during operation, during the process of the staff placing the ductile iron casting, the partition plate 24 installed in the middle of the polishing table 11 can provide a supporting effect for the ductile iron casting. At the same time, during the long-term processing, the polishing device 12 will overheat. At this time, the temperature of the polishing device 12 can be reduced by pouring coolant. At this time, the polished impurities will follow the coolant and enter the middle cavity of the polishing table 11 through the holes formed in the partition plate 24 and come into contact with the separation plate 21. Under the diversion of the separation plate 21, they move into contact with the guide plates 22 on both sides. Subsequently, under the action of gravity, they pass through the filter screen 23 for filtration and then enter the storage bin 16 for storage. As the filtered impurities increase, the filter screen 23 will bend downward under the action of gravity, and the coolant will come into contact with the converging plate 25 following the bending angle of the filter screen 23. The converging plate 25 uses its own angle to guide the coolant to converge and flow towards the middle. This step, due to the existence of the partition plate 24, can further provide a supporting effect for the ductile iron casting to be processed. At the same time, in cooperation with the diversion effects of the separation plate 21 and the guide plates 22, the flowing coolant can smoothly enter the filter screen 23 for filtration and then be put into the storage bin 16 for subsequent secondary treatment. In cooperation with the converging effect of the converging plate 25 on the coolant, the water flow can flow downward in a water column shape in the middle of the filter screen 23, reducing the occurrence of splashing.

[0022] Please refer to Figure 1-3As shown, multiple groups of positioning columns 3 are fixedly connected to the middle of the partition plate 24; a limiting column 31 is slidably connected inside the positioning column 3; multiple groups of first spring rods 33 are connected between the bottom of the limiting column 31 and the side wall of the bottom of the positioning column 3; multiple groups of first water pipes 32 are fixedly connected to the bottom of the partition plate 24; the first spring rod 33 is communicated with the positioning column 3; multiple atomizing nozzles 34 are formed on the side wall of the limiting column 31; during operation, after the staff places the ductile iron casting, the polishing device 12 can perform surface polishing on the ductile iron casting. At this time, some of the high-temperature debris generated during polishing may splash. At this time, the first water pipe 32 can be connected to the water pump of the external water tank, so that the coolant inside the first water pipe 32 passes through the first spring rod 33 and is discharged from the atomizing nozzles 34 on the side wall of the limiting column 31, forming a water mist layer above the partition plate 24 to cool down the descending and splashing debris. At the same time, after the ductile iron casting is placed, multiple groups of positioning columns 3 and limiting columns 31 can limit the periphery of the ductile iron casting. Through the multiple groups of positioning columns 3 and limiting columns 31 on the top of the partition plate 24 in this step, when placing the ductile iron casting, the bottom corners of the ductile iron casting can be fitted. When facing ductile iron castings of different specifications and shapes, the limitation on the ductile iron casting can be increased, the sliding situation during the polishing process can be reduced, and at the same time, with the water mist effect of the atomizing nozzles 34, the temperature of the splashing debris can be reduced.

[0023] Please refer to Figure 2-7 As shown, multiple groups of arc-shaped plates 4 are fixedly connected to the side wall of the end of the first roller 14; a push rod plate 41 is slidably connected to the middle of the arc-shaped plate 4; a support plate 42 is fixedly connected to the middle of the push rod plate 41; a placement plate 44 is fixedly connected to the bottom side wall of the arc-shaped plate 4; a second electric push rod 43 is hinged between the placement plate 44 and the support plate 42; during operation, when restricting the position of the ductile iron casting, according to the different specifications and models of the ductile iron casting, the push rod plate 41 can be displaced by controlling the second electric push rod 43, so that the end of the push rod plate 41 contacts the side wall of the ductile iron casting, thereby increasing the contact surface. When facing a flat ductile iron casting, the end of the push rod plate 41 and the first roller 14 are on the same horizontal plane, and the ductile iron casting can be restricted. When facing ductile iron castings of different specifications and shapes, a certain group of arc-shaped plates 4 and push rod plates 41 can be controlled separately to push the push rod plate 41 to move along the track of the arc-shaped plate 4 until it contacts the side of the ductile iron casting. Through the multiple groups of arc-shaped plates 4 installed around the first roller 14 in this step, when facing ductile iron castings of different specifications and models, the limitation on the ductile iron casting can be increased by the extension of the push rod plate 41, while increasing the contact area and restricting the movement of the ductile iron casting, increasing the stability during the polishing process of the polishing device 12.

[0024] Please refer to Figure 4As shown, a limiting tube 53 is fixedly connected to the end of the push rod plate 41; a connecting ball 52 is ball-jointed to the end of the limiting tube 53; a fitting plate 5 is fixedly connected to the side wall of the connecting ball 52; one ends of a plurality of second spring rods 51 are hinged around the limiting tube 53 at the end of the push rod plate 41; the other ends of the second spring rods 51 are hinged to the side wall of the fitting plate 5; during operation, when facing ductile iron castings of different specifications and models, different angle changes can be made through the connecting ball 52 and the limiting tube 53 between the fitting plate 5 and the second spring rods 51, so as to use the fitting plate 5 to maintain the fitting effect with the surface of the ductile iron casting. At the same time, a plurality of groups of second spring rods 51 provide a supporting effect. Through the fitting plate 5 installed at the end of the push rod plate 41, this step can be fitted according to the different surface shapes of the ductile iron casting under the ball-joint action, increasing the friction between the two, and thus maintaining the stability of the ductile iron casting during polishing and reducing the offset caused by sliding.

[0025] Please refer to Figure 4-5 As shown, a cavity is provided in the middle of the first roller 14, and a positioning ring 6 is fixedly connected in the middle; a plurality of water storage grooves 61 are provided on the outer side wall of the positioning ring 6; a rubber plate 62 is fixedly connected to the side wall of the water storage groove 61; a pressure rod 63 is connected between the inner side wall of the first roller 14 and the rubber plate 62; there is a thin film between the output end side wall of the pressure rod 63 and the inside of the positioning ring 6, and there is a gas that expands when heated and contracts when cooled between the thin film and the positioning ring 6; a second water pipe 64 is fixedly connected inside the first electric push rod 13, and a threaded port is installed at the end of the first electric push rod 13; during operation, when facing a long cylindrical ductile iron casting, the polishing device 12 needs to perform continuous polishing for a long time, resulting in temperature rise of both the polishing device 12 and the ductile iron casting. At this time, due to the clamping effect on the ductile iron casting, the temperature of the first roller 14 rises, causing the gas between the positioning ring 6 and the thin film to drive the thin film to move under the action of thermal expansion and contraction, causing the thin film to pull the output end of the pressure rod 63, causing the rubber plate 62 to bend, increasing the space of the water storage groove 61, so that more coolant discharged from the second water pipe 64 acts inside the water storage groove 61 and contacts the ductile iron casting for cooling during rotation. Through the gas that expands when heated and contracts when cooled inside the positioning ring 6, this step can, when facing the temperature rise of the ductile iron casting, pull the rubber plate 62 to change the space of the water storage groove 61, so as to adaptively increase and decrease the volume of the coolant liquid.

[0026] Please refer to Figure 4-5As shown, a fourth chute 7 is fixedly connected to the middle of the positioning ring 6, and the inside of the fourth chute 7 is a cavity; a collision column 71 is fixedly connected to the middle of the first roller 14, and the collision column 71 is located inside the fourth chute 7; a plurality of sets of receiving plates 72 are fixedly connected to the inner side wall of the fourth chute 7, and the side wall of the receiving plate 72 is arc-shaped; a plurality of sets of rolling columns 73 are arranged inside the fourth chute 7; during operation, when polishing a cylindrical ductile iron casting, as the first roller 14 rotates, it can drive the fourth chute 7 to rotate. At this time, the rotation of the fourth chute 7 will cause the plurality of sets of rolling columns 73 inside to displace under the action of gravity. The rolling columns 73 are driven by the plurality of sets of receiving plates 72 to displace to a high position and then fall to produce a collision effect, triggering vibration, thereby reducing the retention of impurities existing due to polishing on the ductile iron casting from entering the inside of the rubber plate 62. This step utilizes the existence of a plurality of rolling columns 73 inside the fourth chute 7, which can vibrate the impurities adhering to the rubber plate 62 during the rolling process of the first roller 14, causing the impurities to fall when located below, and reducing the accumulation of impurities inside the rubber plate 62, which affects the storage of the coolant.

[0027] Please refer to Figure 2-6 As shown, a second roller 81 is rotatably connected to the bottom of the limiting rod 18; connecting plates 82 are fixedly connected to both side walls of the limiting rod 18; a cleaning plate 8 is fixedly connected to the side wall of the connecting plate 82, and the middle of the cleaning plate 8 protrudes outward and both sides are triangular inclined surfaces; during operation, during the movement of the second roller 81 inside the second chute 17, some impurities under polishing will adhere to the second chute 17. At this time, the impurities are scraped off through the movement effect of the cleaning plate 8. At this time, by using the inclined surface setting of the cleaning plate 8, the scraped impurities can be moved to both sides, and then guided through the third chute 2 to make the impurities fall into the storage bin 16 for internal storage. This step can assist the second roller 81 to change its position through the second roller 81 installed at the bottom of the limiting rod 18, and at the same time, cooperate with the scraping effect of the cleaning plate 8 on the inside of the second chute 17, which can reduce the adhesion of splashed impurities inside the second chute 17, resulting in the operation of the equipment becoming stuck.

[0028] Please refer to Figure 2-6As shown, a spring plate 9 is fixedly connected to the middle of the connecting plate 82; three-spring rods 91 are hinged between the top side wall of the connecting plate 82 and the side wall of the limiting rod 18. During operation, when encountering impurities adhering to the inside of the second chute 17, the spring plate 9 installed in the middle of the connecting plate 82 can drive the cleaning plate 8 to contract. With the reinforcing effect provided by the three-spring rods 91, the elastic force can be stored. After scraping the impurities, through the rebound of the spring plate 9, a shaking effect is generated, which can assist in scraping the impurities on the surface of the cleaning plate 8 and the impurities adhering to the second chute 17. This step, through the elastic force support effect of the spring plate 9 and the three-spring rods 91, can drive the cleaning plate 8 to scrape the impurities adhering to the second chute 17, reducing the retention of impurities inside the second chute 17 and on the surface of the cleaning plate 8 and reducing impurity accumulation.

[0029] Please refer to Figure 3 As shown, ball bearings 101 are rotatably connected to the tops of multiple limiting columns 31. During operation, in the normal use process of the equipment, when the ductile iron casting to be processed is placed, the bottom will first come into contact with the partition plate 24. At this time, under the elastic force support of the first spring rod 33, the limiting column 31 will be pushed upward, so that the ball bearings 101 installed on the top of the limiting column 31 come into contact with the ductile iron casting to be processed, thereby assisting in the placement of the ductile iron casting and completing the subsequent polishing process. This step, through the rolling effect of the ball bearings 101, can reduce the jamming situation that occurs when the top surface of the limiting column 31 directly contacts the corners when coming into contact with the ductile iron casting.

[0030] Working principle: When the staff performs surface polishing on ductile iron castings, the ductile iron casting to be processed can be placed below the polishing device 12. At this time, the output end of the first electric push rod 13 is controlled by a program to move, so that the first roller 14 clamps the ductile iron casting to be processed. Moreover, there is a clamping device on the side wall of the first roller 14 to restrict the rotation of the first roller 14. At the same time, when facing a cylindrical ductile iron casting to be processed, the position can be changed by moving the limit rod 18, so that the cylinder can be placed in the first chute 15. Subsequently, the rotation effect of the first roller 14 drives the cylindrical ductile iron casting to rotate, enabling the polishing device 12 to complete the polishing of the ductile iron casting. At the same time, due to the connection between the middle part of the polishing table 11 and the storage bin 16, the impurities generated during the polishing process can fall into the storage bin 16 for storage. During the process of the staff placing the ductile iron casting, the partition plate 24 installed in the middle of the polishing table 11 can provide a supporting effect for the ductile iron casting. At the same time, during the long-term processing, the polishing device 12 may overheat. At this time, the temperature of the polishing device 12 can be reduced by pouring coolant. At this time, the polished impurities will follow the coolant and enter the middle cavity of the polishing table 11 through the holes opened on the partition plate 24 and contact the separation plate 21. Under the diversion of the separation plate 21, the guide plates 22 on both sides move in contact. Subsequently, under the action of gravity, they pass through the filter screen 23 and are filtered and then enter the interior of the storage bin 16 for storage. As the filtered impurities increase, the filter screen 23 will bend downward under the action of gravity, and the coolant will contact the converging plate 25 following the bending angle of the filter screen 23. The converging plate 25 uses its own angle to guide the coolant to converge and flow towards the middle. After the staff places the ductile iron casting, the polishing device 12 can perform surface polishing on the ductile iron casting. At this time, some of the high-temperature debris from the polishing may splash. At this time, the first water pipe 32 can be connected to the water pump of the external water tank, so that the coolant inside the first water pipe 32 is discharged from the atomizing nozzle 34 on the side wall of the limit column 31 after passing through the first spring rod 33, forming a water mist layer above the partition plate 24 to cool down the descending and splashing debris. At the same time, after the ductile iron casting is placed, multiple positioning columns 3 and limit columns 31 can restrict the periphery of the ductile iron casting. When restricting the position of the ductile iron casting, according to the different specifications and models of the ductile iron casting, the push rod plate 41 can be displaced by controlling the second electric push rod 43, so that the end of the push rod plate 41 contacts the side wall of the ductile iron casting, thereby increasing the contact surface. When facing a flat ductile iron casting, the end of the push rod plate 41 and the first roller 14 are at the same horizontal plane, and the ductile iron casting can be restricted. When facing ductile iron castings of different specifications and shapes, a certain group of arc-shaped plates 4 and the push rod plate 41 can be controlled separately to push the push rod plate 41 to move along the track of the arc-shaped plate 4 until it contacts the side of the ductile iron casting; When facing ductile iron castings of different specifications and models, different angle changes can be made through the connecting ball 52 and the limiting tube 53 between the fitting plate 5 and the second spring rod 51, so as to use the fitting plate 5 to maintain the fitting effect with the surface of the ductile iron casting. At the same time, multiple groups of second spring rods 51 provide a supporting effect. When facing a long cylindrical ductile iron casting, the polishing device 12 needs to perform continuous polishing for a long time, resulting in an increase in the temperature of both the polishing device 12 and the ductile iron casting. At this time, due to the clamping effect on the ductile iron casting, the temperature of the first roller 14 rises, causing the gas between the positioning ring 6 and the film to drive the film to move under the action of thermal expansion and contraction, causing the film to pull on the output end of the pressure rod 63, causing the rubber plate 62 to bend, increasing the space of the water storage tank 61, so that more coolant discharged from the second water pipe 64 acts inside the water storage tank 61, and contacts and cools the ductile iron casting under the rotation action. When polishing a cylindrical ductile iron casting, as the first roller 14 rotates, it can drive the fourth chute 7 to rotate. At this time, the rotation of the fourth chute 7 will cause multiple groups of rolling columns 73 inside to displace under the action of gravity. After driving the rolling columns 73 to move to a high position through multiple bearing plates 72 and then dropping to produce a collision effect, causing vibration, thereby reducing the retention of impurities on the ductile iron casting due to polishing from entering the inside of the rubber plate 62; During the movement of the second roller 81 inside the second chute 17, some impurities under polishing will adhere to the second chute 17. At this time, the impurities are scraped off through the movement effect of the cleaning plate 8. At this time, by using the inclined surface setting of the cleaning plate 8, the scraped impurities can be moved to both sides, and then guided by the third chute 2, so that the impurities fall into the storage bin 16 for storage. When encountering impurities adhering to the inside of the second chute 17, the spring plate 9 installed in the middle of the connecting plate 82 can drive the cleaning plate 8 to contract. With the strengthening effect provided by the third spring rod 91, the elastic force can be stored. After scraping off the impurities, through the rebound of the spring plate 9, a shaking effect is generated, which can assist in scraping off the impurities on the surface of the cleaning plate 8 and the impurities adhering to the second chute 17. During the normal use of the equipment, when the ductile iron casting to be processed is placed, the bottom will first contact the partition plate 24. At this time, under the elastic support of the first spring rod 33, the limiting column 31 will be pushed upward, so that the ball 101 installed on the top of the limiting column 31 contacts the ductile iron casting to be processed, thereby assisting in the placement of the ductile iron casting and completing the subsequent polishing process.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A surface polishing device for ductile iron castings, comprising an external frame (1) and a polishing table (11); the polishing table (11) is arranged inside the external frame (1); it is characterized in that: A second chute (17) is formed at the top of the polishing table (11); a limiting rod (18) is slidably connected inside the second chute (17); a first electric push rod (13) is fixedly connected to the top of the limiting rod (18); a first roller (14) is rotatably connected to the output end of the first electric push rod (13); a polishing device (12) is fixedly connected above the inner part of the outer frame (1); a first chute (15) is formed in the middle at the top of the polishing table (11); the middle part of the polishing table (11) is in a through treatment, and a storage bin (16) is slidably connected to the bottom of the outer frame (1); the top of the storage bin (16) is located below the middle part of the polishing table (11).

2. The surface polishing treatment device for ductile iron castings according to claim 1, characterized in that: A partition plate (24) is fixedly connected to the side wall in the middle of the polishing table (11), and a plurality of groups of holes are formed on the surface of the partition plate (24); a separation plate (21) is fixedly connected to the side wall in the middle of the polishing table (11) below the partition plate (24), and the separation plate (21) is triangularly arranged; guide plates (22) are fixedly connected to the side walls on both sides of the polishing table (11) below the separation plate (21); a filter screen (23) is fixedly connected to the corresponding side walls of a pair of the guide plates (22); a converging plate (25) is fixedly connected to the bottom surface in the middle of the filter screen (23); a plurality of groups of third chutes (2) are formed in the middle of the second chute (17), and the third chutes (2) communicate with the middle part of the polishing table (11).

3. A surface polishing treatment device for ductile iron castings according to claim 2, characterized in that: A plurality of groups of positioning columns (3) are fixedly connected to the middle of the partition plate (24); a limiting column (31) is slidably connected inside the positioning column (3); a plurality of groups of first spring rods (33) are connected between the bottom of the limiting column (31) and the side wall at the bottom of the positioning column (3); a plurality of groups of first water pipes (32) are fixedly connected to the bottom of the partition plate (24); the first spring rods (33) communicate with the positioning column (3); a plurality of groups of atomizing nozzles (34) are formed on the side wall of the limiting column (31).

4. A surface polishing device for ductile iron castings according to claim 1, characterized in that: A plurality of groups of arc-shaped plates (4) are fixedly connected to the side wall at the end of the first roller (14); a push rod plate (41) is slidably connected to the middle of the arc-shaped plate (4); a support plate (42) is fixedly connected to the middle of the push rod plate (41); a placement plate (44) is fixedly connected to the side wall at the bottom of the arc-shaped plate (4); a second electric push rod (43) is hinged between the placement plate (44) and the support plate (42).

5. A surface polishing treatment device for ductile iron castings according to claim 4, characterized in that: A limiting tube (53) is fixedly connected to the end of the push rod plate (41); a connecting ball (52) is ball-jointed to the end of the limiting tube (53); a fitting plate (5) is fixedly connected to the side wall of the connecting ball (52); one ends of a plurality of groups of second spring rods (51) are hinged around the limiting tube (53) at the end of the push rod plate (41); the other ends of the second spring rods (51) are hinged to the side wall of the fitting plate (5).

6. The surface polishing treatment device for ductile iron castings according to claim 1, wherein: A cavity is provided in the middle of the first roller (14), and a positioning ring (6) is fixedly connected in the middle; a plurality of water storage grooves (61) are formed on the outer side wall of the positioning ring (6); a rubber plate (62) is fixedly connected to the side wall of the water storage groove (61); a pressure rod (63) is connected between the inner side wall of the first roller (14) and the rubber plate (62); there is a thin film between the output end side wall of the pressure rod (63) and the inside of the positioning ring (6), and there is a gas that expands when heated and contracts when cooled between the thin film and the positioning ring (6); a second water pipe (64) is fixedly connected inside the first electric push rod (13), and a threaded port is installed at the end of the first electric push rod (13).

7. The surface polishing treatment device for ductile iron castings according to claim 6, characterized in that: A fourth chute (7) is fixedly connected in the middle of the positioning ring (6), and the inside of the fourth chute (7) is a cavity; a collision column (71) is fixedly connected in the middle of the first roller (14), and the collision column (71) is located inside the fourth chute (7); a plurality of receiving plates (72) are fixedly connected to the inner side wall of the fourth chute (7), and the side wall of the receiving plate (72) is arc-shaped; a plurality of rolling columns (73) are provided inside the fourth chute (7).

8. A surface polishing treatment device for ductile iron castings according to claim 1, characterized in that: A second roller (81) is rotatably connected to the bottom of the limiting rod (18); connecting plates (82) are fixedly connected to both side walls of the limiting rod (18); a cleaning plate (8) is fixedly connected to the side wall of the connecting plate (82), and the middle of the cleaning plate (8) protrudes outwards and both sides are triangular inclined surfaces.

9. The surface polishing treatment device for ductile iron castings according to claim 8, characterized in that: A spring plate (9) is fixedly connected to the middle of the connecting plate (82); third spring rods (91) are hinged between the top side wall of the connecting plate (82) and the side wall of the limiting rod (18).

10. A surface polishing treatment device for ductile iron castings according to claim 3, characterized in that: Ball beads (101) are rotatably connected to the tops of a plurality of limiting columns (31).

Images