Polishing device for nodular iron casting production

Abstract

The polishing device for nodular iron casting production comprises a supporting device, a moving device, a polishing device body and a rotating device, the moving device is arranged in the bottom of the left side of the outer wall of the supporting device and can move and rotate, and the polishing device body capable of rotating is arranged in the bottom of the right side of the outer wall of the supporting device. A rotating device is arranged in the center of the top face of the inner wall of the supporting device and can move and rotate, and the moving device, the grinding device and the rotating device can be matched with one another. Through innovative structural design and cooperative operation of all the devices, the defects of traditional equipment in the aspects of stability, universality, grinding efficiency, waste treatment and the like are effectively overcome, especially the problem that the area where a clamp makes contact with a nodular cast iron pipe often becomes a grinding dead angle is solved, all-directional grinding without the dead angle can be achieved, and the grinding efficiency is improved. And the production quality and efficiency of the nodular iron casting are obviously improved.

Description

Technical Field

[0001] The invention relates to the technical field of burr grinding, in particular to a grinding device for producing ductile iron castings. Background Art

[0002] In the production process of ductile iron castings, grinding is a crucial link, which directly affects the surface quality and dimensional accuracy of the products. Traditional grinding equipment has many problems in practical applications and is difficult to meet the needs of modern industrial production for high efficiency, precision and diversification. In particular, the area where the ductile iron pipe is clamped and fixed will be ignored and will not be polished, which will reduce the product quality. Traditional grinding equipment is prone to vibration during startup and operation, resulting in reduced grinding accuracy and even uneven product surface or dimensional errors, which not only increases the defective rate but also affects the overall quality of the product. Existing equipment usually adopts fixed fixtures or simple clamping methods, which are difficult to adapt to ductile iron pipes of different diameters. This fixing method not only limits the versatility of the equipment, but also may cause the workpiece to shift during the grinding process, affecting the grinding effect. Traditional equipment lacks convenient grinding adjustment functions and is difficult to flexibly adjust according to the thickness and shape of the workpiece, which leads to low grinding efficiency; Existing equipment can usually only grind local areas of the workpiece, and it is difficult to achieve comprehensive grinding of the inner and outer walls. In particular, the areas where the fixtures contact often become dead corners for grinding, affecting the overall quality of the product. Summary of the invention

[0003] The object of the present invention is to provide a grinding device for producing ductile iron castings to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a grinding device for producing ductile iron castings, comprising a supporting device, a moving device, a grinding device and a rotating device, wherein a moving device is arranged in the bottom of the left side of the outer wall of the supporting device, and the moving device can move and rotate, a grinding device that can rotate is arranged in the bottom of the right side of the outer wall of the supporting device, a rotating device is arranged at the center of the top surface of the inner wall of the supporting device, and the rotating device can move and rotate, and the moving device, the grinding device and the rotating device can cooperate with each other to grind the ductile iron castings in all directions.

[0005] Preferably, the supporting device includes a first rectangular plate, a second rectangular plate, a first groove, a rectangular box, a third rectangular plate, a second groove, a first concave plate and a fourth rectangular plate, the second rectangular plate being fixedly provided with a second rectangular plate on the left end of the top surface of the first rectangular plate, the outer wall of the second rectangular plate being provided with a first groove which runs through the left and right sides, the right end of the top surface of the first rectangular plate being fixedly provided with a rectangular box, the third rectangular plate being fixedly provided with a third rectangular plate on the left side of the outer wall of the rectangular box, and the bottom surface of the third rectangular plate is connected and fixed to the top surface of the first rectangular plate, the second groove is provided on the front and rear sides of the inner wall of the third rectangular plate, one end of the bottom surface of the first concave plate is fixedly provided on the top surfaces of the third rectangular plate and the second rectangular plate, the fourth rectangular plate is fixedly provided on the rear side of the first concave plate, and the two ends of the front bottom side of the outer wall of the fourth rectangular plate are connected and fixed to the rear ends of the outer walls of the second and third rectangular plates.

[0006] Preferably, the moving device includes a first rotating shaft, a first electric push rod, a cavity rectangular block, a third groove, a rack, an arc plate, a gear, a first cylindrical block, a second rotating shaft, a first DC motor, a first cylinder and a second DC motor, the first rotating shaft is sleeved in the first groove, the first electric push rod is sleeved in the first rotating shaft, the first DC motor is fixedly arranged on the left end of the first rotating shaft, and the output end of the first DC motor is connected and fixed to the left end of the first electric push rod, the cavity rectangular block is fixedly arranged on the right end of the first electric push rod, the third groove is provided at the front end of the top surface and the rear end of the bottom surface of the cavity rectangular block, the two third grooves are provided with racks that can move up and down, and the two racks are in the cavity rectangular block. The two racks are in opposite directions, and an arc plate is provided at one end of the two racks. A gear meshing with each other is provided between the two racks, and one end of the first cylindrical block is fixedly provided at the center of the left end of the gear. The outer wall of the other end of the first cylindrical block is sleeved with a second rotating shaft, and the left end of the second rotating shaft is fixedly provided at the center of the left side of the inner wall of the cavity rectangular block, and a first cylinder is fixedly provided at the center of the right side of the outer wall of the cavity rectangular block. A second DC motor is fixedly provided at the right end of the inner wall of the first cylinder, and the output end of the second DC motor passes through the outer wall of the right side of the cavity rectangular block and is connected and fixed to the right end of the gear. When the second DC motor drives the gear to rotate, the two racks can move outward from the inner cavity of the cavity rectangular block through the third groove.

[0007] Preferably, the grinding device includes a second electric push rod, a first rectangular block, a second rectangular block, a fourth groove, a third rotating shaft, a second cylindrical block, a grinding head and a third DC motor, one end of the second electric push rod is provided at the center of the top surface and the center of the bottom surface of the inner wall of the third rectangular plate, the other ends of the two second electric push rods are provided with a first rectangular block, the centers of the front and rear sides of the outer walls of the two first rectangular blocks are fixedly provided with second rectangular blocks, four second rectangular blocks are arranged in the second groove, the outer walls of the two first rectangular blocks are provided with a fourth groove running through from left to right, the two fourth grooves are sleeved with a third rotating shaft, the two third rotating shafts are sleeved with a second cylindrical block, the left ends of the two second cylindrical blocks are fixedly provided with a grinding head, the right ends of the two third rotating shafts are fixedly provided with a third DC motor, and the output ends of the two third DC motors are connected and fixed to the right end of the second cylindrical block.

[0008] Preferably, the rotating device includes a third electric push rod, a second cylinder, a fourth rotating shaft, a fourth DC motor, a third cylindrical block, a third cylinder and a fourth electric push rod, the third electric push rod is fixedly arranged at the center of the top surface of the inner wall of the first concave plate, the second cylinder is fixedly arranged on the bottom surface of the third electric push rod, the fourth rotating shaft is fixedly arranged on the bottom surface of the second cylinder, the fourth DC motor is fixedly arranged on the top surface of the inner wall of the second cylinder, the third cylindrical block is fixedly arranged on the output end of the fourth DC motor, the third cylindrical block is sleeved in the fourth rotating shaft, the third cylinder is fixedly arranged on the bottom surface of the third cylindrical block, and the top surface of the third cylinder is in contact with the bottom surface of the fourth rotating shaft, the fourth electric push rod is fixedly arranged on the top surface of the inner wall of the third cylinder, and the fourth DC motor can drive the third cylindrical block to rotate through the fourth rotating shaft.

[0009] Preferably, the rotating device also includes a third rectangular block, a fifth groove, a second concave plate, a sixth groove, a fourth rectangular block, a right-angle plate, a seventh groove, a clamping plate, a sliding block and a trapezoidal block, the third rectangular block is fixedly provided on the bottom surface of the fourth electric push rod, a fifth groove which runs through from top to bottom is provided on the top surface of the third rectangular block, and the fifth groove passes through into the third cylinder, so that the fourth electric push rod is arranged in the fifth groove, the outer wall of the fourth electric push rod is at a certain distance from the inner wall of the fifth groove, the second concave plates are provided on both left and right ends of the bottom surface of the third rectangular block, the sixth groove is provided on one side of the bottom of the outer wall of the second concave plate, right-angle plates are provided on the front and rear ends between the two second concave plates, and the two right-angle plates A fourth rectangular block is provided on both sides of the left and right sides of the outer wall of the plate, and can move forward and backward in the sixth groove, a clamping plate is provided at one end of the bottom surface of the two right-angle plates, and a seventh groove is opened on the inclined surfaces of the outer walls of the two right-angle plates, and a slider capable of limited sliding is provided in the two seventh grooves, a trapezoidal block is fixedly provided at one end of the two sliders, and the two sliders are fixedly provided at the front and rear ends of the trapezoidal block, and the center of the top surface of the trapezoidal block is connected to the bottom surface of the fourth electric push rod, and when the fourth electric push rod moves upward, the trapezoidal block is pulled to slide upward in the two seventh grooves through the two sliders, driving the two seventh grooves to move close to each other through the limited movement of the fourth rectangular block, thereby driving the two clamping plates to approach each other.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. The mobile device realizes flexible position adjustment through the cooperation of the first rotating shaft, the first electric push rod and the cavity rectangular block. At the same time, the closed design of the cavity rectangular block effectively blocks the burr waste generated during the grinding process and prevents it from entering the interior of the device, thereby ensuring the normal operation of each component. The gear driven by the second DC motor drives the rack to move, so that the arc plate expands and squeezes the inner wall in the ductile iron pipe, and the ductile iron pipe is fixed by friction. This fixing method that fits the inner wall structure of the ductile iron pipe not only has a reliable fixing effect, but also can adapt to ductile iron pipes of different inner diameters, greatly improving the versatility of the device.

[0011] 2. The grinding device is equipped with a second electric push rod, which can easily adjust the position of the grinding head according to the thickness of the ductile iron pipe, so as to achieve efficient grinding of ductile iron parts of different thicknesses. The cooperation between the second rectangular block and the second groove ensures the stability and accuracy of the first rectangular block in the process of sliding up and down. The third DC motor provides a powerful rotational power for the grinding head, which significantly improves the grinding efficiency and reduces the processing time and cost.

[0012] 3. The rotating device integrates the third electric push rod, the fourth DC motor and other components, which can not only adjust the height, but also realize 360-degree rotation of the ductile iron pipe, which is convenient for all-round grinding. The ingenious linkage between the fourth electric push rod and the third rectangular block, the second concave plate, the right-angle plate, the clamp and other components enables the device to automatically adjust the clamp spacing according to the size of the ductile iron pipe, so as to achieve stable clamping of ductile iron pipes of different sizes. This multi-structure collaborative work not only improves the flexibility and accuracy of the device, but also ensures that the inner and outer walls of the ductile iron pipe are fully polished, even the area contacted by the fixture is no exception, which greatly improves the overall quality of the ductile iron pipe.

[0013] 4. The fourth rectangular plate in the supporting device is cleverly designed to guide the waste generated by grinding to be discharged from one side, avoiding the accumulation of waste in the device, reducing the workload of manual cleaning, allowing waste to be processed in a centralized manner, and improving the cleanliness of the working environment. In addition, the second concave plate design in the rotating device provides convenience for observation and maintenance, greatly saving working time and improving maintenance efficiency.

[0014] In summary, the present invention effectively solves the shortcomings of traditional equipment in terms of stability, versatility, grinding efficiency and waste disposal through innovative structural design and coordinated operation of various devices. In particular, the area where the clamp contacts the ductile iron pipe often becomes a grinding dead angle. The present device can perform all-round grinding without dead angles, significantly improving the production quality and efficiency of ductile iron castings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the support device of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of a rectangular box of the support device of the present invention; Figure 4 It is a schematic diagram of the structure of the mobile device of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the rectangular block of the cavity of the mobile device of the present invention; Figure 6 It is a schematic diagram of the rack and gear structure of the mobile device of the present invention; Figure 7 It is a schematic diagram of the structure of the second rotating axis of the mobile device of the present invention; Figure 8 It is a schematic diagram of the first cylindrical cross-sectional structure of the mobile device of the present invention; Fig. 9 It is a schematic structural diagram of the grinding device of the present invention; Fig.10 It is a schematic diagram of the structure of the fourth groove of the grinding device of the present invention; Fig.11 It is a schematic diagram of the exploded structure of the grinding device of the present invention; Fig.12 It is a schematic diagram of the structure of the rotating device of the present invention; Fig.13 It is a schematic diagram of the cross-sectional structure of the upper part of the rotating device of the present invention; Fig.14 This is a schematic diagram of the structure of the sixth groove in the lower part of the rotating device of the present invention; Fig.15 It is a schematic diagram of the connection structure of two right-angle plates and a trapezoidal block in the lower part of the rotating device of the present invention; Fig.16 It is a schematic diagram of the exploded structure of two right-angle plates and a trapezoidal block in the lower part of the rotating device of the present invention.

[0016] In the figure: 1. Support device; 11. First rectangular plate; 12. Second rectangular plate; 13. First groove; 14. Rectangular box; 15. Third rectangular plate; 16. Second groove; 17. First concave plate; 18. Fourth rectangular plate.

[0017] 2. Moving device; 21. First rotating axis; 22. First electric push rod; 23. Cavity rectangular block; 24. Third groove; 25. Rack; 26. Arc plate; 27. Gear; 28. First cylindrical block; 29. ​​Second rotating axis; 210. First DC motor; 211. First cylinder; 212. Second DC motor.

[0018] 3. Grinding device; 31. Second electric push rod; 32. First rectangular block; 33. Second rectangular block; 34. Fourth groove; 35. Third rotating shaft; 36. Second cylindrical block; 37. Grinding head; 38. Third DC motor; 41. Third electric push rod.

[0019] 4. Rotating device; 42. Second cylinder; 43. Fourth rotating shaft; 44. Fourth DC motor; 45. Third cylindrical block; 46. Third cylinder; 47. Fourth electric push rod; 48. Third rectangular block; 49. Fifth groove; 410. Second concave plate; 411. Sixth groove; 412. Fourth rectangular block; 413. Right-angle plate; 414. Seventh groove; 415. Clamp; 416. Slider; 417. Trapezoidal block. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 16 The present invention provides a technical solution of a grinding device for producing ductile iron parts: the technical solution comprises a supporting device 1, a moving device 2, a grinding device 3 and a rotating device 4. The supporting device 1 has a certain stability and can reduce the vibration generated by starting other devices, thereby improving the accuracy of grinding the ductile iron pipe. A moving device 2 is arranged in the bottom of the left side of the outer wall of the supporting device 1, and the moving device 2 can move and rotate. A rotatable grinding device 3 is arranged in the bottom of the right side of the outer wall of the supporting device 1. The grinding device 3 can support and grind ductile iron parts of any thickness, and the adjustment of the ductile iron pipe is more flexible. A rotating device 4 is arranged at the center of the top surface of the inner wall of the supporting device 1, and the rotating device 4 can move and rotate. The moving device 2, the grinding device 3 and the rotating device 4 can cooperate with each other to grind the ductile iron parts in all directions. The flexible cooperation between the devices improves the work efficiency and improves the grinding quality of the ductile iron pipe, thereby realizing the full-area grinding of the inner wall and the outer wall of the ductile iron pipe.

[0022] As a preferred solution, further, the supporting device 1 includes a first rectangular plate 11, a second rectangular plate 12, a first groove 13, a rectangular box 14, a third rectangular plate 15, a second groove 16, a first concave plate 17 and a fourth rectangular plate 18. The first rectangular plate 11 is the bottom plate of the entire device and has a certain stability. The second rectangular plate 12 is fixedly arranged at the left end of the top surface of the first rectangular plate 11. The outer wall of the second rectangular plate 12 is provided with a first groove 13 that runs through the left and right sides. The opening of the first groove 13 leaves a certain space for the next structure. The right end of the top surface of the first rectangular plate 11 is fixedly arranged with a rectangular box 14. The left side of the outer wall of the rectangular box 14 is fixedly arranged with a third rectangular plate 17. The third rectangular plate 15 is a rectangular plate 15, and the bottom surface of the third rectangular plate 15 is connected and fixed to the top surface of the first rectangular plate 11. The front and rear sides of the inner wall of the third rectangular plate 15 are provided with second grooves 16. The top surfaces of the third rectangular plate 15 and the second rectangular plate 12 are fixedly provided with one end of the bottom surface of the first concave plate 17. The rear side of the first concave plate 17 is fixedly provided with a fourth rectangular plate 18. The addition of the fourth rectangular plate 18 can discharge the polished waste from one side to the outside, reducing the subsequent manual workload, so that the waste does not need to be cleaned on both sides, so that it can be discharged from one side to the outside for centralized treatment, and the two ends of the front bottom of the outer wall of the fourth rectangular plate 18 are connected and fixed to the rear ends of the outer walls of the second rectangular plate 12 and the third rectangular plate 15.

[0023] As a preferred solution, further, the moving device 2 includes a first rotating shaft 21, a first electric push rod 22, a cavity rectangular block 23, a third groove 24, a rack 25, an arc plate 26, a gear 27, a first cylindrical block 28, a second rotating shaft 29, a first DC motor 210, a first cylinder 211 and a second DC motor 212. The first rotating shaft 21 is sleeved in the first groove 13, and the first rotating shaft 21 has a certain supporting force on the connecting component. The first electric push rod 22 is sleeved in the first rotating shaft 21, and the left end of the first rotating shaft 21 is fixedly provided with a first A DC motor 210 is provided, and the output end of the first DC motor 210 is connected and fixed to the left end of the first electric push rod 22. A cavity rectangular block 23 is fixedly provided at the right end of the first electric push rod 22. The closed design of the cavity rectangular block 23 can block the burr waste from the grinding of the ductile iron pipe from entering, so as to prevent other components in the cavity rectangular block 23 from failing to operate. A third groove 24 is provided at the front end and the rear end of the bottom surface of the cavity rectangular block 23. Racks 25 that can move up and down are provided in the two third grooves 24. The two racks 25 are in the cavity rectangular block 23. The two racks 25 are In the opposite direction, the shape of half of the rack 25 matches the third groove 24, and the outer wall of the other half has a plurality of teeth. An arc plate 26 is provided at one end of each of the two racks 25. The design of the arc plate 26 fits the inner wall structure of the ductile iron pipe. A gear 27 meshing with each other is provided between the two racks 25, and one end of the first cylindrical block 28 is fixedly provided at the center of the left end of the gear 27. The outer wall of the other end of the first cylindrical block 28 is sleeved with a second rotating shaft 29. The left end of the second rotating shaft 29 is fixedly provided at the center of the left inner wall of the cavity rectangular block 23. The outer wall of the cavity rectangular block 23 A first cylinder 211 is fixedly arranged at the center of the right side of the wall, a second DC motor 212 is fixedly arranged at the right end of the inner wall of the first cylinder 211, and the output end of the second DC motor 212 passes through the right side outer wall of the cavity rectangular block 23 and is connected and fixed to the right end of the gear 27. When the second DC motor 212 drives the gear 27 to rotate, the two racks 25 can move outward from the inner cavity of the cavity rectangular block 23 through the third groove 24, and the two arc plates 26 expand and squeeze the inner wall in the ductile iron pipe, and the two arc plates 26 have a certain friction with the inner wall of the ductile iron pipe, thereby fixing it.

[0024] As a preferred solution, further, the grinding device 3 includes a second electric push rod 31, a first rectangular block 32, a second rectangular block 33, a fourth groove 34, a third rotating shaft 35, a second cylindrical block 36, a grinding head 37 and a third DC motor 38. The center of the top surface and the center of the bottom surface of the inner wall of the third rectangular plate 15 are both provided with one end of the second electric push rod 31, the other ends of the two second electric push rods 31 are both provided with the first rectangular block 32, the centers of the front and rear sides of the outer walls of the two first rectangular blocks 32 are both fixedly provided with second rectangular blocks 33, the four second rectangular blocks 33 are all arranged in the second groove 16, and the two first rectangular blocks 32 can pass through the two second rectangular blocks 32 on the front and rear of the outer wall. The rectangular block 33 slides up and down within the two second grooves 16. The second rectangular block 33 is provided with a fourth groove 34 that passes through the two first rectangular blocks 32 on the left and right sides. The third rotating shaft 35 is sleeved in the two fourth grooves 34. The second cylindrical blocks 36 are sleeved in the two third rotating shafts 35. A grinding head 37 is fixedly provided at the left end of the two second cylindrical blocks 36. A third DC motor 38 is fixedly provided at the right end of the two third rotating shafts 35. The output ends of the two third DC motors 38 are connected and fixed to the right end of the second cylindrical block 36. The two second electric push rods 31 can drive the grinding head 37 to adjust the thickness of the ductile iron pipe up and down.

[0025] As a preferred embodiment, further, the rotating device 4 includes a third electric push rod 41, a second cylinder 42, a fourth rotating shaft 43, a fourth DC motor 44, a third cylindrical block 45, a third cylinder 46 and a fourth electric push rod 47. The third electric push rod 41 is fixedly arranged at the center of the top surface of the inner wall of the first concave plate 17, the second cylinder 42 is fixedly arranged on the bottom surface of the third electric push rod 41, the fourth rotating shaft 43 is fixedly arranged on the bottom surface of the second cylinder 42, the fourth DC motor 44 is fixedly arranged on the top surface of the inner wall of the second cylinder 42, and the output end of the fourth DC motor 44 is fixedly arranged A third cylindrical block 45 is provided, and the third cylindrical block 45 is sleeved in the fourth rotating shaft 43. The fourth rotating shaft 43 has a certain supporting force, thereby supporting the operation of the bottom device, and the inner wall of the fourth rotating shaft 43 is sleeved and fixed with the third cylindrical block 45, and has a certain stability. A third cylinder 46 is fixedly provided on the bottom surface of the third cylindrical block 45, and the top surface of the third cylinder 46 is in contact with the bottom surface of the fourth rotating shaft 43. A fourth electric push rod 47 is fixedly provided on the top surface of the inner wall of the third cylinder 46, and the fourth DC motor 44 can drive the third cylindrical block 45 to rotate through the fourth rotating shaft 43.

[0026] As a preferred solution, further, the rotating device 4 also includes a third rectangular block 48, a fifth groove 49, a second concave plate 410, a sixth groove 411, a fourth rectangular block 412, a right-angle plate 413, a seventh groove 414, a clamping plate 415, a slider 416 and a trapezoidal block 417. The bottom surface of the fourth electric push rod 47 is fixedly provided with the third rectangular block 48, and the top surface of the third rectangular block 48 is provided with a fifth groove 49 that passes through from top to bottom, and the fifth groove 49 passes through the third cylinder 46, so that the fourth electric push rod 47 The fourth electric push rod 47 is arranged in the fifth groove 49, and the outer wall of the fourth electric push rod 47 is at a certain distance from the inner wall of the fifth groove 49. The left and right ends of the bottom surface of the third rectangular block 48 are provided with second concave plates 410. The second concave plates 410 are designed to be concave, which can make observation or maintenance more convenient and intuitive, save a certain amount of working time and improve maintenance efficiency. A sixth groove 411 is opened on one side of the bottom of the outer wall of the second concave plate 410, and right-angle plates 413 are arranged at the front and rear ends between the two second concave plates 410. The two right-angle plates 413 A fourth rectangular block 412 is provided on both sides of the outer wall, and can move forward and backward in the sixth groove 411. A clamping plate 415 is provided at one end of the bottom surface of the two right-angle plates 413. A seventh groove 414 is provided on the inclined surface of the outer wall of the two right-angle plates 413. A slider 416 capable of limited sliding is provided in the two seventh grooves 414. A trapezoidal block 417 is fixedly provided at one end of the two sliders 416, and the two sliders 416 are fixedly provided at the front and rear ends of the trapezoidal block 417. The center of the top surface of the trapezoidal block 417 is connected to the fixed The bottom surface of the fourth electric push rod 47 is fixed. When the fourth electric push rod 47 moves upward, it pulls the trapezoidal block 417 to slide upward in the two seventh grooves 414 through the two sliders 416, driving the two seventh grooves 414 to move closer to each other through the fourth rectangular block 412, thereby driving the two clamping plates 415 to move closer to each other, and the ductile iron pipe is supported by each other. This multi-structure linkage enables different components to cooperate with each other, thereby improving the flexibility and accuracy of the device, and is suitable for ductile iron pipes of any size.

[0027] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific operation is as follows: the ductile iron pipe with burrs on the inner and outer walls produced after the demoulding and cutting process after centrifugal casting or continuous casting is sleeved on the cavity rectangular block 23, and the gear 27 is driven by the second DC motor 212 to rotate clockwise. Because the gear 27 is meshed with the two racks 25, and the gear 27 drives the rack 25 to move outward, the two arc plates 26 are expanded and fixed to one end of the inner wall of the ductile iron pipe, and the ductile iron pipe is moved to the right by the first electric push rod 22, so that the other end of the ductile iron pipe Insert a second cylindrical block 36, and drive the grinding head 37 through the first rectangular block 32 to adjust the contact with the inner wall and outer wall of the ductile iron pipe by the two second electric push rods 31, so that one second electric push rod 31 contacts the inner wall of the ductile iron pipe, and the other second electric push rod 31 contacts the outer wall of the ductile iron pipe. At the same time, start the first DC motor 210 and the two third DC motors 38 to rotate. The first DC motor 210 drives the ductile iron pipe to rotate, and at the same time, the two third DC motors 38 drive the two grinding heads 37 to grind the burrs on half of the inner wall and half of the outer wall of the ductile iron pipe respectively. When half of the inner wall When the burrs on the outer wall are polished, the first electric push rod 22 drives the part of the ductile iron pipe where the burrs are polished to be directly below the rotating device 4, and the third electric push rod 41 drives the clamping plate 415 to move downward to both sides of the outer wall of the ductile iron pipe where the burrs are polished, and the fourth electric push rod 47 moves upward to pull the trapezoidal block 417 to slide upward in the two seventh grooves 414 through the two sliders 416, so that the two seventh grooves 414 are moved closer to each other through the fourth rectangular block 412, thereby driving the two clamping plates 415 to clamp the part of the ductile iron pipe where the burrs are polished. Similarly, the second DC motor 212 drives The gear 27 rotates counterclockwise, so that the two arc plates 26 return to the original position and no longer fix the ductile iron pipe. The first electric push rod 22 drives the cavity rectangular block 23 to return to the original position to the left. The fourth DC motor 44 drives the third cylindrical block 45 through the fourth rotating shaft 43 to rotate the ductile iron pipe 180 degrees. The first electric push rod 22 drives the cavity rectangular block 23 to the inner wall of the ductile iron pipe after the burrs are polished. Similarly, the second DC motor 212 drives the gear 27 to rotate clockwise, and fixes the inner wall of the ductile iron pipe after the burrs are polished through the two arc plates 26. Similarly, the other half of the ductile iron pipe that has not been polished is polished with the polishing device 3 for burr polishing.

[0028] In summary, the present invention can solve the problem that the area where the ductile iron pipe is clamped and the area contacted by the clamp will be subject to certain restrictions during the grinding process, and thus will be ignored and not polished, resulting in a decrease in the quality of the ductile iron pipe. The present invention can achieve grinding of the entire area of ​​the inner wall and the outer wall, and even the clamped area will be polished, and the quality of the ductile iron pipe is greatly improved.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for producing ductile iron castings, comprising a supporting device (1), a moving device (2), a grinding device (3) and a rotating device (4), wherein the moving device (2) is arranged at the bottom of the left side of the outer wall of the supporting device (1), and the moving device (2) is capable of moving and rotating, the grinding device (3) is arranged at the bottom of the right side of the outer wall of the supporting device (1), and the rotating device (4) is capable of moving and rotating, and the moving device (2), the grinding device (3) and the rotating device (4) are capable of cooperating with each other to grind the ductile iron castings in all directions.

2. A grinding device for producing ductile iron castings according to claim 1, characterized in that: The supporting device (1) comprises a first rectangular plate (11), a second rectangular plate (12), a first groove (13), a rectangular box (14), a third rectangular plate (15), a second groove (16), a first concave plate (17) and a fourth rectangular plate (18); A second rectangular plate (12) is fixedly arranged at the left end of the top surface of the first rectangular plate (11), and a first groove (13) is provided on the outer wall of the second rectangular plate (12) and runs through the left and right sides. A rectangular box (14) is fixedly arranged at the right end of the top surface of the first rectangular plate (11), and a third rectangular plate (15) is fixedly arranged on the left side of the outer wall of the rectangular box (14), and the bottom surface of the third rectangular plate (15) is connected and fixed to the top surface of the first rectangular plate (11). Second grooves (16) are provided on the front and rear sides of the inner wall of the third rectangular plate (15), and one end of the bottom surface of a first concave plate (17) is fixedly arranged on the top surfaces of the third rectangular plate (15) and the second rectangular plate (12), and a fourth rectangular plate (18) is fixedly arranged on the rear side of the first concave plate (17), and the front bottom ends of the outer wall of the fourth rectangular plate (18) are connected and fixed to the rear ends of the outer walls of the second rectangular plate (12) and the third rectangular plate (15).

3. A grinding device for producing ductile iron castings according to claim 2, characterized in that: The moving device (2) comprises a first rotating shaft (21), a first electric push rod (22), a cavity rectangular block (23), a third groove (24), a rack (25), an arc-shaped plate (26), a gear (27), a first cylindrical block (28), a second rotating shaft (29), a first DC motor (210), a first cylinder (211) and a second DC motor (212); A first rotating shaft (21) is sleeved in the first groove (13), a first electric push rod (22) is sleeved in the first rotating shaft (21), a first DC motor (210) is fixedly arranged at the left end of the first rotating shaft (21), and the output end of the first DC motor (210) is connected and fixed to the left end of the first electric push rod (22), a cavity rectangular block (23) is fixedly arranged at the right end of the first electric push rod (22), a third groove (24) is provided at the front end of the top surface and the rear end of the bottom surface of the cavity rectangular block (23), two racks (25) that can move up and down are provided in the two third grooves (24), and the two racks (25) are in the cavity rectangular block (23), the two racks (25) are in opposite directions, and the two racks (25) are arranged in opposite directions. An arc-shaped plate (26) is provided at one end of each rack (25), a mutually meshing gear (27) is provided between the two racks (25), and one end of a first cylindrical block (28) is fixedly provided at the center of the left end of the gear (27), a second rotating shaft (29) is sleeved on the outer wall of the other end of the first cylindrical block (28), the left end of the second rotating shaft (29) is fixedly provided at the center of the left side of the inner wall of the cavity rectangular block (23), a first cylinder (211) is fixedly provided at the center of the right side of the outer wall of the cavity rectangular block (23), a second DC motor (212) is fixedly provided at the right end of the inner wall of the first cylinder (211), and an output end of the second DC motor (212) passes through the right side outer wall of the cavity rectangular block (23) and is connected and fixed to the right end of the gear (27).

4. A grinding device for producing ductile iron castings according to claim 3, characterized in that: When the second DC motor (212) drives the gear (27) to rotate, the two racks (25) can be moved outward from the inner cavity of the hollow rectangular block (23) through the third groove (24).

5. A grinding device for producing ductile iron castings according to claim 4, characterized in that: The grinding device (3) comprises a second electric push rod (31), a first rectangular block (32), a second rectangular block (33), a fourth groove (34), a third rotating shaft (35), a second cylindrical block (36), a grinding head (37) and a third DC motor (38); One end of a second electric push rod (31) is disposed at the center of the top surface and the center of the bottom surface of the inner wall of the third rectangular plate (15); a first rectangular block (32) is disposed at the other end of each of the two second electric push rods (31); a second rectangular block (33) is fixedly disposed at the center of the front and rear sides of the outer walls of the two first rectangular blocks (32); four second rectangular blocks (33) are disposed in a second groove (16); a fourth groove (34) is provided on the outer walls of the two first rectangular blocks (32) and passes through the outer walls of the two first rectangular blocks (32); a third rotating shaft (35) is sleeved in each of the two fourth grooves (34); a second cylindrical block (36) is sleeved in each of the two third rotating shafts (35); a grinding head (37) is fixedly disposed at the left end of each of the two second cylindrical blocks (36); a third DC motor (38) is fixedly disposed at the right end of each of the two third rotating shafts (35); and output ends of the two third DC motors (38) are connected and fixed to the right end of the second cylindrical block (36).

6. A grinding device for producing ductile iron castings according to claim 5, characterized in that: The rotating device (4) comprises a third electric push rod (41), a second cylinder (42), a fourth rotating shaft (43), a fourth DC motor (44), a third cylindrical block (45), a third cylinder (46) and a fourth electric push rod (47); A third electric push rod (41) is fixedly arranged at the center of the top surface of the inner wall of the first concave plate (17); a second cylinder (42) is fixedly arranged on the bottom surface of the third electric push rod (41); a fourth rotating shaft (43) is fixedly arranged on the bottom surface of the second cylinder (42); a fourth DC motor (44) is fixedly arranged on the top surface of the inner wall of the second cylinder (42); a third cylindrical block (45) is fixedly arranged at the output end of the fourth DC motor (44); the third cylindrical block (45) is sleeved in the fourth rotating shaft (43); a third cylinder (46) is fixedly arranged on the bottom surface of the third cylindrical block (45); the top surface of the third cylinder (46) is in contact with the bottom surface of the fourth rotating shaft (43); a fourth electric push rod (47) is fixedly arranged on the top surface of the inner wall of the third cylinder (46); and the fourth DC motor (44) can drive the third cylindrical block (45) to rotate via the fourth rotating shaft (43).

7. A grinding device for producing ductile iron castings according to claim 6, characterized in that: The rotating device (4) further comprises a third rectangular block (48), a fifth groove (49), a second concave plate (410), a sixth groove (411), a fourth rectangular block (412), a right-angle plate (413), a seventh groove (414), a clamping plate (415), a sliding block (416) and a trapezoidal block (417); A third rectangular block (48) is fixedly arranged on the bottom surface of the fourth electric push rod (47), a fifth groove (49) is opened on the top surface of the third rectangular block (48) and is passed through from top to bottom, and the fifth groove (49) passes through the third cylinder (46), so that the fourth electric push rod (47) is arranged in the fifth groove (49), and the outer wall of the fourth electric push rod (47) is at a certain distance from the inner wall of the fifth groove (49), second concave plates (410) are arranged on both left and right ends of the bottom surface of the third rectangular block (48), a sixth groove (411) is opened on one side of the bottom of the outer wall of the second concave plate (410), and right-angle plates (413) are arranged at both front and rear ends between the two second concave plates (410) The left and right sides of the outer walls of the two right-angle plates (413) are both provided with fourth rectangular blocks (412) and can move forward and backward in the sixth groove (411). One end of the bottom surface of the two right-angle plates (413) is provided with a clamping plate (415). The inclined surfaces of the outer walls of the two right-angle plates (413) are both provided with seventh grooves (414). The two seventh grooves (414) are both provided with sliders (416) capable of limited sliding. One end of the two sliders (416) is fixedly provided with a trapezoidal block (417), and the two sliders (416) are both fixedly provided at the front and rear ends of the trapezoidal block (417). The center of the top surface of the trapezoidal block (417) is connected and fixed to the bottom surface of the fourth electric push rod (47).

8. A grinding device for producing ductile iron castings according to claim 7, characterized in that: When the fourth electric push rod (47) moves upward, it pulls the trapezoidal block (417) to slide upward within the two seventh grooves (414) through the two sliders (416), driving the two seventh grooves (414) to move closer to each other through the fourth rectangular block (412), thereby driving the two clamping plates (415) to move closer to each other.

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