An automated grinding apparatus for gray cast iron pieces and a method of using the same

Abstract

The application relates to the technical field of polishing equipment, in particular to an automatic polishing equipment for gray cast iron parts and a use method thereof, which comprises a mechanical arm and a water storage assembly, the bottom end of the mechanical arm is fixedly connected with the water storage assembly, the top end of the water storage assembly is fixedly connected with a stabilizing assembly, the inner side of the upper end of the water storage assembly is rotationally connected with a rotary driving assembly, the inner side of one end of the mechanical arm is fixedly connected with a driving motor, the tail end of the main shaft of the driving motor is fixedly connected with a polishing mounting assembly, the inner side of the polishing mounting assembly is fixedly connected with a first expansion assembly, the inner side of the polishing mounting assembly is fixedly connected with a second expansion assembly, the polishing mounting assembly comprises an oil storage shell, one side of the oil storage shell is fixedly connected with a cylinder shell, and the front end of the cylinder shell is fixedly connected with a second water pump, in the application, the device meets the polishing requirements of gray cast iron parts with different shapes and areas, the polishing efficiency of large-area plane parts is improved, and the fine polishing capacity of complex corner regions is maintained.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, specifically to an automated grinding equipment for gray cast iron parts and its usage method. Background Technology

[0002] Automated grinding equipment for gray cast iron parts is a mechanical system specifically designed to improve grinding efficiency, ensure grinding quality, and reduce manual labor. This equipment can automatically remove sprues, flash, burrs, etc. generated during the casting process of gray cast iron parts, and at the same time perform surface treatment to improve the surface quality of the castings. By integrating advanced technologies such as robotics, CNC systems, and force control systems, automated grinding equipment can achieve precise grinding and deburring of gray cast iron parts. Gray cast iron is a ferroalloy product with a high carbon content made by casting. It is named for its gray granular structure in cross-section. Gray cast iron has good casting performance, high compressive strength and cost-effectiveness, and is widely used in the manufacture of various mechanical parts and components, such as engine cylinder blocks, pipe fittings and daily necessities. When grinding gray cast iron parts, it is crucial to select the appropriate grinding head for different grinding areas and parts. For areas with complex shapes and corners, a smaller diameter grinding head is usually required to flexibly adapt to the contours of these areas and achieve precise grinding. However, when dealing with large flat areas, the small diameter grinding head will reduce grinding efficiency and increase the overall grinding time due to its smaller contact area. Therefore, to address the above problems, an automated grinding equipment for gray cast iron parts and its usage method are proposed. Summary of the Invention

[0003] The purpose of this invention is to provide an automated grinding equipment and method for gray cast iron parts, in order to solve the problem that for areas with complex shapes and corners, it is usually necessary to use grinding heads with smaller diameters. When processing large flat areas, such small-diameter grinding heads will reduce grinding efficiency and increase the overall grinding time due to their smaller contact area.

[0004] To achieve the above objectives, the present invention provides the following technical solution: An automated grinding device for gray cast iron parts and its method of use include a robotic arm and a water storage assembly. The water storage assembly is fixedly connected to the bottom end of the robotic arm, and a stabilizing assembly is fixedly connected to the top end of the water storage assembly. A rotary drive assembly is rotatably connected to the inner side of the upper end of the water storage assembly. A drive motor is fixedly connected to the inner side of one end of the robotic arm. A grinding mounting assembly is fixedly connected to the end of the drive motor's main shaft. A first extension assembly and a second extension assembly are fixedly connected to the inner side of the grinding mounting assembly. The grinding mounting assembly includes an oil storage shell, a cylindrical shell fixedly connected to one side of the oil storage shell, a second water pump fixedly connected to the front end of the cylindrical shell, and a rigid pipe fixedly connected to the inner side of the cylindrical shell. The rigid tube is fixedly connected to a ring tube at its rear end. A solid column is fixedly connected to the inner side of the oil reservoir. A first grinding body is fixedly connected to the rear end of the solid column by bolts. The first expansion component includes an oil-passing hollow rod. A double oil passage is opened on the inner side of the oil-passing hollow rod. A return spring is fixedly connected to the rear end of the double oil passage of the oil-passing hollow rod. A side hole is opened on the inner side of the rear end of the oil-passing hollow rod. A solenoid valve is fixedly connected to the inner side of the front end of the oil-passing hollow rod. A rubber sealing ring is fixedly connected to the inner side of the rear end of the oil-passing hollow rod. A sealing slide is slidably connected to the inner side of the double oil passage of the oil-passing hollow rod. A guide rod is fixedly connected to the rear end of the sealing slide. A second grinding body is fixedly connected to the rear end of the guide rod by bolts.

[0005] As a further optimization of the present invention, the water storage component includes a machine base, a controller is fixedly connected to the right side of the machine base, a rubber piston is installed on the inner side of the front end of the machine base, a filter plate is provided on the inner side of the machine base, a first water pump is fixedly connected to the upper end of the water groove provided on the machine base, a filter plate is fixedly connected to the inner side of the water groove provided on the machine base, a double column limiting groove is provided on the inner side of the upper end of the machine base, and a drain outlet is provided on the upper end of the machine base.

[0006] As a further optimization of the present invention, the stabilizing component includes a throttle, a threaded rotating rod fixedly connected to one side of the throttle, an internal threaded plate helically connected to the outer side of the threaded rotating rod, a limit telescopic rod fixedly connected to one side of the internal threaded plate, and a fixing clamp fixedly connected to one side of the limit telescopic rod.

[0007] As a further optimization of the present invention, the rotary drive assembly includes a ring cover, a rack fixedly connected to the outer side of the ring cover, a lower channel opened on the inner side of the rear end of the ring cover, an inlet opened on the inner side of the rear end of the ring cover, a water spray nozzle fixedly connected to the inner side of the ring cover, the outer side of the rack meshing with the outer side of the gear, and the inner side of the gear fixedly connected to the outer side of the servo motor spindle.

[0008] As a further optimization of the present invention, the double-column limiting groove is shaped as two cylindrical sections. A water inlet is provided at the upper end of the machine base near the first water pump. The double-column limiting groove is connected to the outlet of the first water pump through the water inlet. The outlet pipe of the first water pump is located at the lower end of the filter plate. The drain outlet is connected to the interior of the water groove opened on the machine base.

[0009] As a further optimization of the present invention, wherein: a limiting rotating ring is fixedly connected to the outer side of the lower end of the ring cover, a sealing ring is fixedly connected to the outer side of the limiting rotating ring of the ring cover, the ring cover is connected to the inner side of the double-column limiting groove opened in the machine tool through a hole drilled through the limiting rotating ring, the sealing ring of the limiting rotating ring of the ring cover fits against the inner side of the double-column limiting groove opened in the machine tool, the bottom end of the servo motor is fixedly connected to the top end of the machine tool, the lower channel passes through the lower end of the ring cover, the lower channel communicates with the inlet, the inner side of the water nozzle is empty, the inlet communicates with the inside of the water nozzle, and the lower channel communicates with the inner side of the double-column limiting groove opened in the machine tool.

[0010] As a further optimization of the present invention, the following features are provided: the bottom end of the internal threaded plate is fixedly connected to the top end of the machine base; a limiting rotating hole is provided on the inner side of the fixed clamping plate; a threaded hole is provided on the inner side of the internal threaded plate near the threaded rotating rod; a gap is provided between the fixed clamping plate and the internal threaded plate; and the number of the stabilizing components is two.

[0011] As a further optimization of the present invention, the inner side of the cylindrical shell is hollow, the inner rear end of the oil storage shell is hollow, an installation hole is provided on the inner side of the cylindrical shell, the second water pump is located inside the oil storage shell, there are two rigid pipes, the inner side of the rigid pipe is hollow, the inner side of the rigid pipe is connected to the outlet of the second water pump, the rigid pipe is connected to the inside of the ring pipe, a solenoid valve is installed on the inner side of the front end of the rigid pipe, and the inner side of the ring pipe is connected to the inner side of the side hole opened on the oil-carrying hollow rod.

[0012] As a further optimization of the present invention, the outer side of the oil-conducting hollow rod is fixedly connected to the inner side of the cylinder shell, the front end of the oil-conducting hollow rod is connected to the inside of the oil storage shell, a sealing ring is installed on the outer side of the sealing slide, the outer side of the guide rod is in contact with the inner side of the rubber sealing ring, the rear end of the sealing slide is fixedly connected to the front end of the return spring, and the structure of the second expansion component is the same as the structure of the first expansion component.

[0013] A method for using an automated grinding equipment for gray cast iron parts. S1: When adjusting the diameter of the grinding head according to the location to be ground on the gray cast iron part, the diameter of the grinding head needs to be reduced during the grinding of complex corner areas of the gray cast iron part. The second water pump draws hydraulic oil from the inside of the oil reservoir, filling the oil reservoir with hydraulic oil. At this time, the solenoid valves inside the two hard pipes are in the open state, and at the same time, all the solenoid valves inside the first and second expansion components are in the open state. The second water pump fills the drawn hydraulic oil from the inside of the hard pipe into the inside of the ring pipe, and from the ring pipe into the side hole of the oil passage hollow rod, and at the same time into the inside of the second expansion component. The hydraulic oil at the rear end of the double oil passage near the side hole gradually increases, the sealing slide moves forward, the sealing slide drives the guide rod to move forward, the sealing slide slides on the inside of the double oil passage of the oil passage hollow rod, and a sealing ring is set on the outside of the sealing slide. At the same time, the sealing slide drives the return spring to... As the first grinding head extends, the return spring generates elastic force, and the hydraulic oil at the front end of the sealing slide column flows from the solenoid valve into the oil reservoir. The second grinding body moves forward away from the first grinding body. After the front ends of all the sealing slide columns are in contact with the rear ends of the solenoid valves, all the solenoid valves are closed, and the hydraulic oil in the dual-pass oil passage, the inner side of the ring pipe, and the inner side of the hard pipe will be fixed, and the hydraulic oil will not flow. The positions of the sealing slide column and the guide rod are limited. When it is necessary to expand the diameter of the grinding head, the robotic arm is activated, so that the rear end of the first grinding body is in contact with the top of the machine. The solenoid valve inside the first expansion component is opened, while the solenoid valve inside the second expansion component is closed. Under the action of the elastic contraction force of the return spring, the sealing slide column and the guide rod gradually move towards the outside of the oil-conducting hollow rod. When the rear end of the second grinding body is in contact with the top of the machine, all the solenoid valves of the first expansion component are closed, and the diameter of the grinding head is increased. S2: When cooling the grinding head during grinding, the gear is driven to rotate according to the grinding position of the grinding head on the gray cast iron part. The gear drives the outer meshing rack to rotate, and the rack drives the ring cover to rotate and connect to the inner side of the double column limiting groove opened in the machine. The outer side of the ring cover is sealed with the machine through the sealing ring. When the water nozzle is facing the grinding position, the servo motor stops, and the first water pump draws water from the lower part of the filter plate and the inside of the water groove. The water enters the through hole at the upper part of the machine from the first water pump, then enters the inside of the double column limiting groove, enters the inside of the inlet through the lower channel, and is sprayed out from the inside of the water nozzle. S3: When fixing the gray cast iron part, place the gray cast iron part on the upper end of the machine platform, and at the upper end near the drain outlet. The outer side of the threaded rod is spirally connected to the inner side of the internal thread plate. When the threaded rod rotates, the threaded rod will move towards the gray cast iron part. The threaded rod drives the fixed clamping plate to move, and the fixed clamping plate drives the limit telescopic rod to extend.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the automatic adjustment of the grinding installation component, the first extension component and the second extension component is used to adapt to the grinding needs of gray cast iron parts of different shapes and areas. This design not only improves the grinding accuracy, but also significantly improves the grinding efficiency of large-area flat parts, while maintaining the ability to finely grind complex corner areas. 2. In this invention, the device achieves cooling of the grinding head through the water storage component and the rotary drive component, preventing the heat generated by long-term grinding from affecting the service life and grinding quality of the grinding head. In addition, the design of the water circulation system not only improves the cooling efficiency, but also realizes the recycling of water resources, saves costs and reduces environmental impact. 3. In this invention, the stable components are set to achieve stable fixation of the gray cast iron parts, ensuring stability and consistency during the grinding process. This fixing method improves the pass rate of grinding, reduces grinding defects caused by workpiece movement or vibration, and improves the overall grinding quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the water storage component structure of the present invention; Figure 3 This is a schematic diagram of the stable component structure of the present invention; Figure 4 This is a schematic diagram of the rotary drive component structure of the present invention; Figure 5 This is a schematic diagram of the drive motor structure of the present invention; Figure 6 This is a schematic diagram of the grinding and mounting component structure of the present invention; Figure 7 This is a schematic diagram of the oil-conducting hollow rod structure of the present invention; Figure 8 This is a schematic diagram of the sealing sliding column structure of the present invention.

[0016] In the picture: 1. Robotic arm; 2. Water storage assembly; 21. Machine base; 22. Controller; 23. Rubber piston; 24. Water groove; 25. Filter plate; 26. First water pump; 27. Double column limiting groove; 28. Drain outlet; 3. Stabilizing components; 31. Thruster; 32. Threaded rotating rod; 33. Internal threaded plate; 34. Limiting telescopic rod; 35. Fixing clamp; 4. Rotary drive assembly; 41. Ring cover; 42. Rack; 43. Lower channel; 44. Inlet; 45. Spray nozzle; 46. Gear; 47. Servo motor; 5. Drive motor; 6. Grinding and mounting components; 61. Oil reservoir; 62. Shell; 63. Second water pump; 64. Rigid pipe; 65. Ring pipe; 66. Solid column; 67. First grinding body; 7. First extension assembly; 71. Hollow oil rod; 72. Double oil passage; 73. Side hole; 74. Solenoid valve; 75. Return spring; 76. Rubber sealing ring; 77. Sealing slide; 78. Guide rod; 79. Second grinding body; 8. Second extension component. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] Please see Figure 1-8 The present invention provides a technical solution: An automated grinding device for gray cast iron parts and its method of use include a robotic arm 1 and a water storage component 2. The water storage component 2 is fixedly connected to the bottom end of the robotic arm 1, and a stabilizing component 3 is fixedly connected to the top end of the water storage component 2. A rotary drive component 4 is rotatably connected to the inner side of the upper end of the water storage component 2. A drive motor 5 is fixedly connected to the inner side of one end of the robotic arm 1. A grinding mounting component 6 is fixedly connected to the end of the main shaft of the drive motor 5. A first extension component 7 and a second extension component 8 are fixedly connected to the inner side of the grinding mounting component 6. The grinding mounting component 6 includes an oil storage shell 61. A cylindrical shell 62 is fixedly connected to one side of the oil storage shell 61. A second water pump 63 is fixedly connected to the front end of the cylindrical shell 62. A rigid pipe 64 is fixedly connected to the inner side of the cylindrical shell 62. The rear end of the rigid pipe 64 is fixedly connected to... The system includes a ring pipe 65, a solid column 66 fixedly connected to the inner side of an oil reservoir 61, a first grinding body 67 fixedly connected to the rear end of the solid column 66 by bolts, and a first extension component 7 including an oil-passing hollow rod 71. The oil-passing hollow rod 71 has a double oil passage 72 on its inner side. A return spring 75 is fixedly connected to the rear end of the double oil passage 72 on the oil-passing hollow rod 71. A side hole 73 is opened on the inner side of the rear end of the oil-passing hollow rod 71. A solenoid valve 74 is fixedly connected to the inner side of the front end of the oil-passing hollow rod 71. A rubber sealing ring 76 is fixedly connected to the inner side of the rear end of the oil-passing hollow rod 71. A sealing slide column 77 is slidably connected to the inner side of the double oil passage 72 on the oil-passing hollow rod 71. A guide rod 78 is fixedly connected to the rear end of the sealing slide column 77. A second grinding body 79 is fixedly connected to the rear end of the guide rod 78 by bolts.

[0020] As a further implementation of this solution, the water storage component 2 includes a machine base 21. A controller 22 is fixedly connected to the right side of the machine base 21. A rubber piston 23 is installed on the inner side of the front end of the machine base 21. A filter plate 25 is opened on the inner side of the machine base 21. A first water pump 26 is fixedly connected to the upper end of the water groove 24 opened in the machine base 21. A filter plate 25 is fixedly connected to the inner side of the water groove 24 opened in the machine base 21. A double column limiting groove 27 is opened on the inner side of the upper end of the machine base 21. A drain outlet 28 is opened at the upper end of the machine base 21, which realizes the cooling of the machine base 21. This design not only improves the cooling efficiency, but also facilitates the circulation and flow of coolant through the setting of the water outlet, effectively extending the service life of the equipment components. As a further implementation of this solution, the stabilizing component 3 includes a handle 31, a threaded rotating rod 32 fixedly connected to one side of the handle 31, an internal threaded plate 33 screwedly connected to the outside of the threaded rotating rod 32, a limiting telescopic rod 34 fixedly connected to one side of the internal threaded plate 33, and a fixing clamp 35 fixedly connected to one side of the limiting telescopic rod 34, providing a flexible adjustment and positioning mechanism, so that the stabilizing component 3 can be precisely adjusted as needed; As a further implementation of this solution, the rotary drive assembly 4 includes a ring cover 41, a rack 42 fixedly connected to the outer side of the ring cover 41, a lower channel 43 opened on the inner side of the rear end of the ring cover 41, an inlet 44 opened on the inner side of the rear end of the ring cover 41, a water nozzle 45 fixedly connected to the inner side of the ring cover 41, the outer side of the rack 42 meshes with the outer side of the gear 46, the inner side of the gear 46 is fixedly connected to the outer side of the main shaft of the servo motor 47, and the double-column limiting groove 27 is shaped like two cylindrical sections. A water inlet is provided at the upper end of the platform 21 near the first water pump 26. The double column limiting groove 27 is connected to the outlet of the first water pump 26 through the water inlet. The outlet pipe of the first water pump 26 is located at the lower end of the filter plate 25. The drain outlet 28 is connected to the inside of the water groove 24 opened in the platform 21, which ensures the sealing between the ring cover 41 and the platform 21 and prevents coolant leakage. At the same time, the use of the limiting rotating ring provides precise positioning and ensures the stability of the ring cover 41 inside the double column limiting groove 27. As a further implementation of this solution, a limiting rotating ring is fixedly connected to the outer side of the lower end of the ring cover 41. A sealing ring is fixedly connected to the outer side of the limiting rotating ring of the ring cover 41. The ring cover 41 is connected to the inner side of the double column limiting groove 27 opened in the machine base 21 through the limiting rotating ring. The sealing ring of the limiting rotating ring of the ring cover 41 fits with the inner side of the double column limiting groove 27 opened in the machine base 21. The bottom end of the servo motor 47 is fixedly connected to the top end of the machine base 21. The lower channel 43 passes through the lower end of the ring cover 41 and is connected to the inlet 44. The inner side of the water nozzle 45 is empty. The inlet 44 is connected to the inside of the water nozzle 45. The lower channel 43 is connected to the inner side of the double column limiting groove 27 opened in the machine base 21, which facilitates the flow of water. According to the grinding position of the gray cast iron parts, the grinding installation component 6, the first expansion component 7 and the second expansion component 8 can be precisely cooled to ensure the service life of the grinding installation component 6, the first expansion component 7 and the second expansion component 8. As a further implementation of this solution, the bottom end of the internal thread plate 33 is fixedly connected to the top end of the machine base 21, a limit rotating hole is opened on the inner side of the fixed clamping plate 35, a threaded hole is opened on the inner side of the internal thread plate 33 near the threaded rotating rod 32, a gap is provided between the fixed clamping plate 35 and the internal thread plate 33, and the number of stabilizing components 3 is two, providing a flexible adjustment and positioning mechanism, so that the stabilizing components 3 can be precisely adjusted as needed; As a further implementation of this scheme, the inner side of the shell 62 is hollow, the inner rear end of the oil storage tank 61 is hollow, and an installation hole is provided on the inner side of the shell 62. The second water pump 63 is located inside the oil storage tank 61. There are two rigid pipes 64, the inner side of which is hollow and connected to the outlet of the second water pump 63. The rigid pipes 64 are also connected to the inside of the ring pipe 65. A solenoid valve 74 is installed on the inner side of the front end of the rigid pipe 64. The inner side of the ring pipe 65 is connected to the inner side of the side hole 73 opened in the oil-carrying hollow rod 71. The outer side of the oil-conducting hollow rod 71 is fixedly connected to the inner side of the cylinder shell 62. The front end of the oil-conducting hollow rod 71 is connected to the inside of the oil storage shell 61. A sealing ring is installed on the outer side of the sealing slide 77. The outer side of the guide rod 78 is in contact with the inner side of the rubber sealing ring 76. The rear end of the sealing slide 77 is fixedly connected to the front end of the return spring 75. The structure of the second extension component 8 is the same as that of the first extension component 7. Through hydraulic system control, the diameter of the grinding head is automatically adjusted to meet the grinding needs of gray cast iron parts of different shapes and areas.

[0021] Workflow: When adjusting the diameter of the grinding head according to the location to be ground on the gray cast iron part, the diameter of the grinding head needs to be reduced during the grinding of complex corner areas of the gray cast iron part. The second water pump 63 is started, and the second water pump 63 draws hydraulic oil from the oil reservoir 61, filling the oil reservoir 61 with hydraulic oil. At this time, the solenoid valves 74 inside the two rigid pipes 64 are in the open state. At the same time, all the solenoid valves 74 inside the first expansion assembly 7 and the second expansion assembly 8 are in the open state. The second water pump 63 pumps the drawn hydraulic oil from inside the rigid pipe 64 into the ring pipe 65, and from the ring pipe 65 into the side hole 73 opened in the oil passage hollow rod 71, and at the same time into the interior of the second expansion assembly 8. At this time, the side hole 73 is close to the side hole 73. As the hydraulic oil at the rear end of the double-pass oil passage 72 gradually increases, the sealing slide 77 moves forward under the action of the hydraulic oil. The sealing slide 77 drives the guide rod 78 to move forward. The sealing slide 77 is slidably connected to the inner side of the double-pass oil passage 72 opened in the oil passage hollow rod 71. A sealing ring is provided on the outer side of the sealing slide 77 to prevent hydraulic oil from flowing between the sealing slide 77 and the double-pass oil passage 72. The guide rod 78 slides on the inner side of the oil passage hollow rod 71. Under the sealing action of the rubber sealing ring 76, it plays the role of sealing between the guide rod 78 and the oil passage hollow rod 71. At the same time, the sealing slide 77 drives the return spring 75 to extend, and the return spring 75 elastically stores force. The hydraulic oil at the front end of the sealing slide 77 flows from the solenoid valve 74 into the interior of the oil reservoir 61. As the guide rod 78 moves forward, it drives the second grinding body 79 forward. The second grinding body 79 is fitted outside the first grinding body 67. As the second grinding body 79 moves forward away from the first grinding body 67, when the front ends of all the sealing slides 77 are in contact with the rear ends of the solenoid valves 74, all the solenoid valves 74 are closed. At this time, the hydraulic oil in the double-pass oil passage 72, the inner side of the ring pipe 65, and the inner side of the hard pipe 64 will be fixed, and the hydraulic oil will not flow, thus limiting the position of the sealing slides 77 and the guide rod 78. At this time, the complex corner area can be ground. When it is necessary to expand the diameter of the grinding head, the robotic arm 1 is activated so that the rear end of the first grinding body 67 is in contact with the top of the machine table 21. Because the first grinding body 67 is grinding During the process, wear will occur, and the thickness of the first grinding body 67 will change. Therefore, the rear end of the second grinding body 79 needs to be aligned with the rear end of the first grinding body 67. The solenoid valve 74 inside the first expansion assembly 7 is open, while the solenoid valve 74 inside the second expansion assembly 8 is closed. Under the elastic contraction force of the return spring 75, the sealing slide 77 and guide rod 78 gradually move towards the outside of the oil-conducting hollow rod 71. When the rear end of the second grinding body 79 is in contact with the top of the machine base 21, all the solenoid valves 74 of the first expansion assembly 7 are closed. At this time, the diameter of the grinding head is increased. Following the same principle, all the solenoid valves 74 inside the first expansion assembly 7 are closed, while all the solenoid valves 74 inside the second expansion assembly 8 are opened.At this point, the diameter of the grinding head can be further increased. While ensuring grinding efficiency, this achieves not only precision grinding but also grinding over large areas. During the grinding process, while the grinding head is being cooled, the servo motor 47 is activated to drive the gear 46 to rotate, based on the grinding position of the grinding head on the gray cast iron part. The gear 46 drives the outer meshing rack 42 to rotate, and the rack 42 drives the ring cover 41 to rotate. This ring cover 41 is connected to the inner side of the double-column limiting groove 27 opened in the machine base 21, thus limiting the rotation of the ring cover 41. The outer side of the ring cover 41 is sealed to the machine base 21 by a sealing ring to prevent water inside the double-column limiting groove 27 from overflowing outside the machine base 21. When the water spray nozzle 45 is facing the grinding position, the servo motor 47 is stopped, and the first water pump 26 is started. A water pump 26 draws water from the lower part of the filter plate 25 and the inside of the water groove 24. The water enters the through hole at the upper end of the machine base 21 from the first water pump 26, then enters the inside of the double column limiting groove 27, enters the inside of the inlet 44 through the lower channel 43, and is sprayed out from the inside of the spray nozzle 45, thereby achieving the effect of cooling the grinding head. The sprayed water is blocked by the ring cover 41 and flows from the water outlet 28 into the inside of the water groove 24. It is filtered by the filter plate 25, and the filtered water flows to the lower end of the filter plate 25, achieving the effect of water recycling. The water can be discharged by the rubber piston 23. When fixing the gray cast iron part, place the gray cast iron part on the upper end of the machine base 21, close to the upper end of the drain outlet 28. Rotate the handle 31 to drive the threaded rod 32 to rotate. The outer side of the threaded rod 32 is spirally connected to the inner side of the internal thread plate 33. When the threaded rod 32 rotates, it will move towards the gray cast iron part. The threaded rod 32 drives the fixed clamping plate 35 to move. The fixed clamping plate 35 drives the limiting telescopic rod 34 to extend. The limiting telescopic rod 34 limits the movement direction of the fixed clamping plate 35. When the two fixed clamping plates 35 clamp the gray cast iron part at the same time, the gray cast iron part is fixed, which improves the stability of the gray cast iron part during grinding and ensures the passing rate of grinding.

[0022] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated grinding device for gray cast iron parts, comprising a robotic arm (1) and a water storage assembly (2), characterized in that: The bottom end of the robotic arm (1) is fixedly connected to a water storage component (2), the top end of the water storage component (2) is fixedly connected to a stabilizing component (3), the inner side of the upper end of the water storage component (2) is rotatably connected to a rotary drive component (4), the inner side of one end of the robotic arm (1) is fixedly connected to a drive motor (5), the end of the main shaft of the drive motor (5) is fixedly connected to a grinding mounting component (6), the inner side of the grinding mounting component (6) is fixedly connected to a first extension component (7), and the inner side of the grinding mounting component (6) is fixedly connected to a second extension component (8). The grinding mounting assembly (6) includes an oil reservoir (61), a cylindrical shell (62) is fixedly connected to one side of the oil reservoir (61), a second water pump (63) is fixedly connected to the front end of the cylindrical shell (62), a rigid pipe (64) is fixedly connected to the inner side of the cylindrical shell (62), a ring pipe (65) is fixedly connected to the rear end of the rigid pipe (64), a solid column (66) is fixedly connected to the inner side of the oil reservoir (61), and a first grinding body (67) is fixedly connected to the rear end of the solid column (66) by bolts. The first extension assembly (7) includes an oil-conducting hollow rod (71), the oil-conducting hollow rod (71) 71) A double-pass oil passage (72) is provided on the inner side. A return spring (75) is fixedly connected to the rear end of the double-pass oil passage (72) of the hollow oil passage (71). A side hole (73) is provided on the inner side of the rear end of the hollow oil passage (71). A solenoid valve (74) is fixedly connected to the inner side of the front end of the hollow oil passage (71). A rubber sealing ring (76) is fixedly connected to the inner side of the rear end of the hollow oil passage (71). A sealing slide column (77) is slidably connected to the inner side of the double-pass oil passage (72) of the hollow oil passage (71). A guide rod is fixedly connected to the rear end of the sealing slide column (77). 78), the rear end of the guide rod (78) is fixedly connected to the second grinding body (79) by bolts, the inner side of the cylindrical shell (62) is hollow, the inner side of the rear end of the oil storage shell (61) is hollow, the inner side of the cylindrical shell (62) is provided with an installation hole, the second water pump (63) is located inside the oil storage shell (61), there are two hard pipes (64), the inner side of the hard pipes (64) is hollow, the inner side of the hard pipes (64) is connected to the outlet of the second water pump (63), the hard pipes (64) are connected to the inside of the ring pipe (65), and an electromagnetic device is installed on the inner side of the front end of the hard pipes (64). The valve (74) has an inner side of the ring pipe (65) connected to the inner side of the side hole (73) of the oil-carrying hollow rod (71). The outer side of the oil-carrying hollow rod (71) is fixedly connected to the inner side of the cylinder shell (62). The front end of the oil-carrying hollow rod (71) is connected to the inside of the oil storage shell (61). A sealing ring is installed on the outer side of the sealing slide (77). The outer side of the guide rod (78) is in contact with the inner side of the rubber sealing ring (76). The rear end of the sealing slide (77) is fixedly connected to the front end of the return spring (75). The structure of the second expansion component (8) is the same as that of the first expansion component (7).

2. The automated grinding equipment for gray cast iron parts according to claim 1, characterized in that: The water storage component (2) includes a machine base (21), a controller (22) is fixedly connected to the right side of the machine base (21), a rubber piston (23) is installed on the inner side of the front end of the machine base (21), a filter plate (25) is opened on the inner side of the machine base (21), a first water pump (26) is fixedly connected to the upper end of the water groove (24) opened on the machine base (21), a filter plate (25) is fixedly connected to the inner side of the water groove (24) opened on the machine base (21), a double column limiting groove (27) is opened on the inner side of the upper end of the machine base (21), and a drain outlet (28) is opened at the upper end of the machine base (21).

3. The automated grinding equipment for gray cast iron parts according to claim 1, characterized in that: The stabilizing component (3) includes a throttle (31), a threaded rotating rod (32) is fixedly connected to one side of the throttle (31), an internal thread plate (33) is spirally connected to the outside of the threaded rotating rod (32), a limit telescopic rod (34) is fixedly connected to one side of the internal thread plate (33), and a fixing clamp (35) is fixedly connected to one side of the limit telescopic rod (34).

4. The automated grinding equipment for gray cast iron parts according to claim 1, characterized in that: The rotary drive assembly (4) includes a ring cover (41), a rack (42) is fixedly connected to the outer side of the ring cover (41), a lower channel (43) is opened on the inner side of the rear end of the ring cover (41), an inlet (44) is opened on the inner side of the rear end of the ring cover (41), a water nozzle (45) is fixedly connected to the inner side of the ring cover (41), the outer side of the rack (42) meshes with the outer side of the gear (46), and the inner side of the gear (46) is fixedly connected to the outer side of the main shaft of the servo motor (47).

5. The automated grinding equipment for gray cast iron parts according to claim 2, characterized in that: The double-column limiting groove (27) is shaped like two cylindrical sections. The upper end of the machine base (21) near the first water pump (26) has a water inlet. The double-column limiting groove (27) is connected to the outlet of the first water pump (26) through the water inlet. The outlet pipe of the first water pump (26) is located at the lower end of the filter plate (25). The drain outlet (28) is connected to the interior of the water groove (24) opened on the machine base (21).

6. The automated grinding equipment for gray cast iron parts according to claim 4, characterized in that: A limiting rotating ring is fixedly connected to the outer side of the lower end of the ring cover (41). A sealing ring is fixedly connected to the outer side of the limiting rotating ring of the ring cover (41). The ring cover (41) is connected to the inner side of the double column limiting groove (27) opened on the machine base (21) through the limiting rotating ring. The sealing ring of the limiting rotating ring of the ring cover (41) fits against the inner side of the double column limiting groove (27) opened on the machine base (21). The bottom end of the servo motor (47) is fixedly connected to the top end of the machine base (21). The lower channel (43) passes through the lower end of the ring cover (41). The lower channel (43) is connected to the inlet (44). The inner side of the spray nozzle (45) is empty. The inlet (44) is connected to the inside of the spray nozzle (45). The lower channel (43) is connected to the inner side of the double column limiting groove (27) opened on the machine base (21).

7. The automated grinding equipment for gray cast iron parts according to claim 3, characterized in that: The bottom end of the internal thread plate (33) is fixedly connected to the top end of the machine base (21). The inner side of the fixed clamping plate (35) is provided with a limit rotating hole. The inner side of the internal thread plate (33) near the threaded rotating rod (32) is provided with a threaded hole. There is a gap between the fixed clamping plate (35) and the internal thread plate (33). The number of the stabilizing components (3) is two.

8. A method of using an automated grinding equipment for gray cast iron parts according to any one of claims 1-7, characterized in that: S1: When adjusting the diameter of the grinding head according to the location to be ground on the gray cast iron part, the second water pump (63) draws hydraulic oil from the oil reservoir (61), filling the oil reservoir (61) with hydraulic oil. At this time, the solenoid valves (74) inside the two hard pipes (64) are in the open state. The second water pump (63) pumps the drawn hydraulic oil from the hard pipe (64) into the ring pipe (65), and from the ring pipe (65) into the side hole (73) of the oil-conducting hollow rod (71), and into the interior of the second extension component (8). (73) The hydraulic oil at the rear end of the double-pass oil passage (72) near the side hole (73) gradually increases, the sealing slide (77) moves forward, the sealing slide (77) drives the guide rod (78) to move forward, the sealing slide (77) is slidably connected to the inside of the double-pass oil passage (72) opened by the oil passage hollow rod (71), a sealing ring is provided on the outside of the sealing slide (77), at the same time the sealing slide (77) drives the return spring (75) to extend, the return spring (75) elastically stores force, the hydraulic oil at the front end of the sealing slide (77) flows from the solenoid valve (74) The oil flows into the interior of the oil reservoir (61), the second grinding body (79) moves forward away from the first grinding body (67), and after the front end of all the sealing slides (77) is in contact with the rear end of the solenoid valves (74), all the solenoid valves (74) are closed, the hydraulic oil in the double-pass oil passage (72), the inner side of the ring pipe (65) and the inner side of the hard pipe (64) will be fixed, the hydraulic oil will not flow, the position of the sealing slides (77) and the guide rod (78) is limited, when it is necessary to expand the diameter of the grinding head, the robotic arm (1) is started, so that the first grinding body (67) flows into the interior of the oil reservoir (61), the second grinding body (79) moves forward away from the first grinding body (67), and the second grinding body (79) moves away from the first grinding body (67). 7) The rear end of the second grinding body (79) is attached to the top of the machine base (21). The solenoid valve (74) inside the first expansion component (7) is opened, while the solenoid valve (74) inside the second expansion component (8) is not opened. Under the elastic contraction force of the return spring (75), the sealing slide (77) and guide rod (78) gradually move towards the outside of the oil-conducting hollow rod (71). When the rear end of the second grinding body (79) is attached to the top of the machine base (21), all the solenoid valves (74) of the first expansion component (7) are closed. At this time, the diameter of the grinding head is increased. S2: When the grinding head is cooled during grinding, the gear (46) is driven to rotate according to the position of the grinding head grinding the gray cast iron part. The gear (46) drives the outer meshing rack (42) to rotate. The rack (42) drives the ring cover (41) to rotate and connect to the inner side of the double column limiting groove (27) opened on the machine base (21). The outer side of the ring cover (41) is sealed with the machine base (21) through the sealing ring. When the water nozzle (45) is facing the grinding position, the servo motor (47) is stopped. The first water pump (26) draws water from the lower part of the filter plate (25) and the inside of the water groove (24). The water enters the through hole at the upper end of the machine base (21) from the first water pump (26), then enters the inside of the double column limiting groove (27), enters the inside of the inlet (44) through the lower channel (43), and is sprayed out from the inside of the water nozzle (45). S3: When fixing the gray cast iron part, place the gray cast iron part on the upper end of the machine base (21) and close to the upper end of the drain (28). The outer side of the threaded rod (32) is spirally connected to the inner side of the inner thread plate (33). When the threaded rod (32) rotates, the threaded rod (32) will move towards the gray cast iron part. The threaded rod (32) drives the fixed clamp (35) to move. The fixed clamp (35) drives the limit telescopic rod (34) to extend.

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