A grinding device for processing cast iron parts in rotary tillage machinery

Abstract

The present invention discloses a grinding device for processing cast iron parts in a rotary tillage machine, and the present invention relates to the technical field of grinding cast iron parts, comprising a bottom plate, the top side wall of the bottom plate is symmetrically provided with two first grooves, the inner walls of the two first grooves are both rotatably connected with a first screw, the rod wall of the first screw is threadedly rotatably connected with a movable plate, the side walls at both ends of the bottom plate are symmetrically fixedly connected with two first motors, and the output ends of the two first motors are both passed through the side wall of the bottom plate and fixedly connected with one end of the corresponding first screw. The present invention can grind the side walls at both ends of a double L-shaped fixed bracket of different angles and lengths, avoid manually holding the fixed bracket and changing the angle of the fixed bracket on a surface grinder for grinding, and improve the work efficiency and safety when grinding the fixed bracket.

Description

Technical Field

[0001] The invention belongs to the technical field of iron casting grinding, and in particular relates to a grinding device for processing iron castings in a rotary tillage machine. Background Art

[0002] Cast iron parts may produce burrs, pores or other surface defects during the casting process. During the processing of the fixed bracket in the rotary tillage machine, in order to extend the service life of the fixed bracket, make the bracket surface smoother, reduce stress concentration, and improve its durability and fatigue resistance, the surface of the fixed bracket is usually polished to make the surface smooth. At the same time, it is convenient to spray anti-rust paint on the surface of the fixed bracket to prevent the surface of the fixed bracket from rusting and affecting its use.

[0003] In the prior art, when grinding the fixed bracket, when the shape of the fixed bracket is a straight plate, a surface grinder or a belt grinder is usually used to grind the fixed bracket. However, when the overall shape of the fixed bracket is a double L shape, the shape of the fixed bracket is irregular. When grinding the double L-shaped fixed bracket using a surface grinder or a belt grinder, it is necessary to manually adjust the position of the fixed bracket so that the surface of the fixed bracket can contact the grinder to grind the surface of the fixed bracket. However, this method requires manual holding of the fixed bracket to adjust the grinding position. Since the fixed bracket is a cast iron part and its weight is heavy, careless operation during grinding may easily bring danger to the staff, thereby reducing the safety of grinding the fixed bracket and greatly reducing the efficiency of grinding the fixed bracket.

[0004] Therefore, we propose a grinding device for processing cast iron parts in rotary tillage machinery to solve the above problems. Summary of the invention

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The worm gear of the embodiment of the present invention is connected with the toothed wheel of the present invention to form a rotation axis line of the toothed wheel, and the toothed wheel of the present invention is connected with the toothed wheel of the present invention to the rotation axis line of the toothed wheel.

[0007] Preferably, the side-end clamping and grinding assembly includes a second electric telescopic rod fixedly connected to the side wall of the moving block, the telescopic end of the second electric telescopic rod is fixedly connected to the first mounting plate, and the upper and lower inner walls of the first mounting plate are symmetrically fixedly connected to multiple third electric telescopic rods, the telescopic ends of the third electric telescopic rods are fixedly connected to the first clamping plate, and the upper and lower inner walls of the first mounting plate are symmetrically fixedly connected to fourth electric telescopic rods.

[0008] Preferably, the telescopic ends of the fourth electric telescopic rod are fixedly connected to the second mounting plate, the inner walls at both ends of the second mounting plate are rotatably connected to the same first polishing rod, the side walls of the second mounting plate are fixedly connected to the third motor, and the output end of the third motor passes through the side wall of the second mounting plate and is fixedly connected to one end of the corresponding first polishing rod.

[0009] Preferably, the inner walls at both ends of the upper and lower ends of the first mounting plate are fixedly connected with a fifth electric telescopic rod, the telescopic end of the fifth electric telescopic rod is fixedly connected with a connecting rod, the rod wall of the connecting rod is fixedly connected with a sixth electric telescopic rod, the telescopic end of the sixth electric telescopic rod is fixedly connected with a polishing plate, the side walls at both ends of the upper and lower ends of the first mounting plate are fixedly connected with a fourth motor, and the output end of the fourth motor passes through the side wall of the first mounting plate and is fixedly connected to one end corresponding to the fifth electric telescopic rod.

[0010] Preferably, the middle-end clamping and grinding assembly includes a seventh electric telescopic rod fixedly connected to the side wall of the top end of the base plate, the telescopic end of the seventh electric telescopic rod is fixedly connected to a support plate, the side wall of the support plate is rotatably connected to the support rod, one end of the support rod is fixedly connected to a U-shaped telescopic shell, the upper and lower end inner walls of the U-shaped telescopic shell are respectively fixedly connected to two groups of mounting frames, the inner walls of the two groups of the mounting frames are fixedly connected to electric slide rails, the side walls of the two groups of the electric slide rails are slidably connected to slide plates, the side walls of the support plate are fixedly connected to a ninth motor, and the output end of the ninth motor passes through the side wall of the support plate and is fixedly connected to one end of the support rod.

[0011] Preferably, the side walls of the two groups of the skateboards are fixedly connected with the eighth electric telescopic rod, the telescopic ends of the eighth electric telescopic rod are fixedly connected with the second clamping plate, the side walls of the two groups of the skateboards are fixedly connected with the ninth electric telescopic rod, the telescopic ends of the ninth electric telescopic rod are fixedly connected with the side panels, the side walls of the two groups of the side panels are rotatably connected with the second polishing rod, one end of the second polishing rod in each group is fixedly connected with the first limiting telescopic rod, and the telescopic end of the first limiting telescopic rod is fixedly connected to one end of the corresponding other second polishing rod.

[0012] Preferably, the side walls of the two groups of side panels at opposite ends are rotatably connected to the second position-limiting telescopic rod, the telescopic ends of the two second position-limiting telescopic rods are fixedly connected to the same third polishing rod, and the side walls of one of the side panels in each group are fixedly connected to a fifth motor and a sixth motor, the output end of the fifth motor passes through the side wall of the side panel and is fixedly connected to an end of the corresponding second polishing rod, and the output end of the sixth motor passes through the side wall of the side panel and is fixedly connected to an end of the corresponding second position-limiting telescopic rod.

[0013] Preferably, the top side wall of the U-shaped telescopic shell is symmetrically fixedly connected to two connecting plates, one of the side walls of the connecting plates is fixedly connected to the tenth electric telescopic rod, the telescopic end of the tenth electric telescopic rod is fixedly connected to the side wall of the other connecting plate, and the two end side walls of the U-shaped telescopic shell are symmetrically fixedly connected to four fixed plates, the two end side walls of the four fixed plates are rotatably connected to the same round rod, and the rod wall of the round rod is fixedly connected to the eleventh electric telescopic rod.

[0014] Preferably, the telescopic ends of the eleventh electric telescopic rod are fixedly connected to the third mounting plate, the inner wall of the third mounting plate is rotatably connected to the fourth polishing rod, the side wall of the third mounting plate is fixedly connected to the seventh motor, the output end of the seventh motor passes through the side wall of the third mounting plate and is fixedly connected to one end of the fourth polishing rod, the side wall of the fixed plate is fixedly connected to the eighth motor, and the output end of the eighth motor passes through the side wall of the fixed plate and is fixedly connected to one end of the corresponding round rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The side end clamping and grinding assembly can be used to grind the side walls of the double L-shaped fixed brackets of different angles and lengths, avoiding the need to manually hold the fixed bracket and change the angle of the fixed bracket for grinding on a surface grinder, thereby improving the work efficiency and safety when grinding the fixed bracket.

[0017] 2. The mid-end clamping and grinding assembly can be used to grind the mid-end position of fixed brackets of different lengths, and can also grind the curved surface of the fixed bracket. It is suitable for the curved surfaces of fixed brackets of different angles. The steps are simple, which reduces the operating procedures of the staff and greatly improves the grinding efficiency and use effect of the device.

[0018] 3. By arranging the fifth electric telescopic rod, the connecting rod, the sixth electric telescopic rod and the polishing plate, after completing the polishing of the side wall of the fixed bracket, the inner wall of the mounting through hole opened at both ends of the fixed bracket can be polished, so as to facilitate the subsequent installation of the fixed bracket using the mounting through hole, thereby improving the reliability of the device and the comprehensiveness of the polishing of the fixed bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the present invention from other angles;

[0021] Figure 3 It is a schematic diagram of the partial structure of the present invention Figure 1 ;

[0022] Figure 4 It is a schematic diagram of the partial structure of the present invention Figure 2 ;

[0023] Figure 5 It is a schematic diagram of the partial structure of the present invention Figure 3 ;

[0024] Figure 6 It is a schematic diagram of the partial structure of the present invention Figure 4 ;

[0025] Figure 7 It is a schematic diagram of the partial structure of the present invention Figure 5 .

[0026] In the figure: 1, bottom plate; 2, first groove; 3, first screw rod; 4, moving plate; 5, first motor; 6, housing; 7, second screw rod; 8, side end clamping and grinding assembly; 81, second electric telescopic rod; 82, first mounting plate; 83, third electric telescopic rod; 84, first clamping plate; 85, fourth electric telescopic rod; 86, second mounting plate; 87, first grinding rod; 88, third motor; 89, fifth electric telescopic rod; 810, connecting rod; 811, sixth electric telescopic rod; 812, grinding plate; 813, fourth motor; 9, middle end clamping and grinding assembly; 91, seventh electric telescopic rod; 92, support plate; 93, support rod; 94, U-shaped telescopic shell; 95, Mounting frame; 96, electric slide rail; 97, slide plate; 98, eighth electric telescopic rod; 99, second clamping plate; 910, ninth electric telescopic rod; 911, side plate; 912, second polishing rod; 913, first limit telescopic rod; 914, second limit telescopic rod; 915, third polishing rod; 916, fifth motor; 917, sixth motor; 918, connecting plate; 919, tenth electric telescopic rod; 920, fixing plate; 921, round rod; 922, eleventh electric telescopic rod; 923, third mounting plate; 924, fourth polishing rod; 925, seventh motor; 926, eighth motor; 927, ninth motor; 10, second motor; 11, moving block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] The following electrical components are all electrically connected to the peripheral PLC controller.

[0029] Reference Figure 1 - Figure 7 , a grinding device for processing cast iron parts in a rotary tillage machine, comprising a base plate 1, the top side wall of the base plate 1 is symmetrically provided with two first grooves 2, the inner walls of the two first grooves 2 are rotatably connected with first screws 3, the rod wall of the first screw 3 is threadedly rotatably connected with a moving plate 4, the side walls at both ends of the base plate 1 are symmetrically fixedly connected with two first motors 5, the output ends of the two first motors 5 penetrate the side wall of the base plate 1 and are fixedly connected to one end of the corresponding first screw 3, the upper side wall of the moving plate 4 is fixedly connected with a shell 6, the inner wall of the shell 6 is rotatably connected with a second screw 7, the rod wall of the second screw 7 is threadedly rotatably connected with a moving block 11, the top side wall of the shell 6 is fixedly connected with a second motor 10, the output end of the second motor 10 penetrates the side wall of the corresponding shell 6 and is fixedly connected to one end of the second screw 7, the side wall of the shell 6 is provided with a strip opening for the moving block 11 to move, the side wall of the moving block 11 is fixedly connected with a side end clamping and grinding assembly 8, and the top side wall of the base plate 1 is fixedly connected with a middle end clamping and grinding assembly 9.

[0030] In the embodiment, the side end clamping and grinding assembly 8 includes a second electric telescopic rod 81 fixedly connected to the side wall of the moving block 11, the telescopic end of the second electric telescopic rod 81 is fixedly connected to the first mounting plate 82, the upper and lower inner walls of the first mounting plate 82 are symmetrically fixedly connected to a plurality of third electric telescopic rods 83, the telescopic ends of the third electric telescopic rods 83 are fixedly connected to the first clamping plate 84, and the upper and lower inner walls of the first mounting plate 82 are symmetrically fixedly connected to the fourth electric telescopic rods 85;

[0031] The telescopic ends of the fourth electric telescopic rod 85 are fixedly connected to the second mounting plate 86, the inner walls at both ends of the second mounting plate 86 are rotatably connected to the same first polishing rod 87, the side wall of the second mounting plate 86 is fixedly connected to the third motor 88, and the output end of the third motor 88 passes through the side wall of the second mounting plate 86 and is fixedly connected to one end of the corresponding first polishing rod 87.

[0032] Specifically, the side walls at both ends of the double L-shaped fixed bracket with different angles and lengths can be polished, avoiding the need to manually hold the fixed bracket and change the angle of the fixed bracket for polishing on a surface grinder, thereby improving the work efficiency and safety when polishing the fixed bracket.

[0033] In the embodiment, the inner walls of the upper and lower ends of the first mounting plate 82 are fixedly connected with the fifth electric telescopic rod 89, the telescopic end of the fifth electric telescopic rod 89 is fixedly connected with the connecting rod 810, the rod wall of the connecting rod 810 is fixedly connected with the sixth electric telescopic rod 811, the telescopic end of the sixth electric telescopic rod 811 is fixedly connected with the polishing plate 812, the side walls of the upper and lower ends of the first mounting plate 82 are fixedly connected with the fourth motor 813, and the output end of the fourth motor 813 passes through the side wall of the first mounting plate 82 and is fixedly connected to one end of the corresponding fifth electric telescopic rod 89.

[0034] Specifically, after completing the grinding of the side walls of the fixed bracket, the inner walls of the mounting holes opened at both ends of the fixed bracket can be ground, so as to facilitate the subsequent installation of the fixed bracket using the mounting holes, thereby improving the reliability of the device and the comprehensiveness of the grinding of the fixed bracket.

[0035] In the embodiment, the middle-end clamping and grinding assembly 9 includes a seventh electric telescopic rod 91 fixedly connected to the top side wall of the bottom plate 1, the telescopic end of the seventh electric telescopic rod 91 is fixedly connected to a support plate 92, the side wall of the support plate 92 is rotatably connected to a support rod 93, one end of the support rod 93 is fixedly connected to a U-shaped telescopic shell 94, the upper and lower inner walls of the U-shaped telescopic shell 94 are respectively fixedly connected to two groups of mounting frames 95, the inner walls of the two groups of mounting frames 95 are fixedly connected to electric slide rails 96, the side walls of the two groups of electric slide rails 96 are slidably connected to slide plates 97, the side wall of the support plate 92 is fixedly connected to a ninth motor 927, the output end of the ninth motor 927 passes through the side wall of the support plate 92 and is fixedly connected to one end of the support rod 93;

[0036] The side walls of the two groups of slide plates 97 are fixedly connected with the eighth electric telescopic rod 98, and the telescopic ends of the eighth electric telescopic rod 98 are fixedly connected with the second clamping plate 99. The side walls of the two groups of slide plates 97 are fixedly connected with the ninth electric telescopic rod 910, and the telescopic ends of the ninth electric telescopic rod 910 are fixedly connected with the side plates 911. The side walls of the two groups of side plates 911 are rotatably connected with the second polishing rods 912. One end of one of the second polishing rods 912 in each group is fixedly connected with the first limit telescopic rod 913, and the telescopic end of the first limit telescopic rod 913 is fixedly connected with one end of the corresponding other second polishing rod 912.

[0037] The side walls of the two groups of side panels 911 at opposite ends are rotatably connected to the second position-limiting telescopic rod 914, and the telescopic ends of the two second position-limiting telescopic rods 914 are fixedly connected to the same third polishing rod 915. The side wall of one of the side panels 911 in each group is fixedly connected to the fifth motor 916 and the sixth motor 917. The output end of the fifth motor 916 penetrates the side wall of the side panel 911 and is fixedly connected to one end of the corresponding second polishing rod 912. The output end of the sixth motor 917 penetrates the side wall of the side panel 911 and is fixedly connected to one end of the corresponding second position-limiting telescopic rod 914.

[0038] The top side wall of the U-shaped telescopic shell 94 is symmetrically fixedly connected to two connecting plates 918, the side wall of one connecting plate 918 is fixedly connected to the tenth electric telescopic rod 919, the telescopic end of the tenth electric telescopic rod 919 is fixedly connected to the side wall of the other connecting plate 918, the two end side walls of the U-shaped telescopic shell 94 are symmetrically fixedly connected to four fixing plates 920, the two end side walls of the four fixing plates 920 are rotatably connected to the same round rod 921, and the rod wall of the round rod 921 is fixedly connected to the eleventh electric telescopic rod 922;

[0039] The telescopic ends of the eleventh electric telescopic rod 922 are fixedly connected to the third mounting plate 923, the inner wall of the third mounting plate 923 is rotatably connected to the fourth polishing rod 924, the side wall of the third mounting plate 923 is fixedly connected to the seventh motor 925, the output end of the seventh motor 925 passes through the side wall of the third mounting plate 923 and is fixedly connected to one end of the fourth polishing rod 924, the side wall of the fixed plate 920 is fixedly connected to the eighth motor 926, the output end of the eighth motor 926 passes through the side wall of the fixed plate 920 and is fixedly connected to one end of the corresponding round rod 921.

[0040] Specifically, it can grind the middle position of fixed brackets of different lengths, and can also grind the curved surface of the fixed bracket, and is suitable for the curved surfaces of fixed brackets of different angles. The steps are simple, reducing the operating procedures of the staff, and greatly improving the grinding efficiency and use effect of the device.

[0041] The operating principle of the present invention is now described as follows:

[0042] In the present invention, when it is necessary to grind the double L-shaped fixed bracket, firstly, the two first motors 5 are controlled to start, drive the first screw rod 3 to rotate, so that the movable plate 4 drives the shell 6 to move, so that the distance between the two first mounting plates 82 is the same as the length of the fixed bracket, and then the second electric telescopic rod 81 is controlled to start, drive the first mounting plate 82 to move, and then the second motor 10 is controlled to start, drive the second screw rod 7 to rotate, so that the movable block 11 drives the first mounting plate 82 to move to a position matching the two ends of the fixed bracket, and then the staff puts the two ends of the fixed bracket into the first mounting plate 82, and then the third electric telescopic rod 83 is controlled to start, drive the first clamping plate 84 to move, and use the first clamping plate 84 to fix the two ends of the fixed bracket, and then the seventh electric telescopic rod 91 is controlled to start, drive the support plate 92 to move upward, so that the U-shaped telescopic shell 94 matches the height of the fixed bracket, and then the ninth motor 927 is controlled to start, drive the support rod 93 to rotate, so that the U-shaped telescopic shell 94 rotates, so that the angle of the U-shaped telescopic shell 94 is the same as the angle of inclination of the middle part of the fixed bracket, and at the same time, the third electric telescopic rod 83 is controlled to start, drive the first clamping plate 84 to move, and use the first clamping plate 84 to fix the two ends of the fixed bracket. The tenth electric telescopic rod 919 is controlled to start, and the distance between the two connecting plates 918 is increased, so that the length of the U-shaped telescopic shell 94 matches the length of the middle part of the fixed bracket. Then, the second electric telescopic rod 81 is controlled to contract, and the first mounting plate 82 and the fixed bracket are driven to move, so that the middle part of the fixed bracket enters the U-shaped telescopic shell 94. Then, the eighth electric telescopic rod 98 is controlled to start, and the second clamping plate 99 is driven to move to clamp the middle part of the fixed bracket. At the same time, the third electric telescopic rod 83 is controlled to contract and drive the first clamping plate 84 to return to its original position. Then, the fourth electric telescopic rod 85 is controlled to start, so that the first grinding rod 87 contacts the side walls at both ends of the fixed bracket. At the same time, the third motor 88 and the first motor 5 are controlled to start, and the first grinding rod 87 is driven to rotate and move at the same time, so as to realize the grinding of the side walls at both ends of the fixed bracket. The side walls at both ends of the double L-shaped fixed brackets of different angles and lengths can be ground, so as to avoid manually holding the fixed bracket and changing the angle of the fixed bracket on the surface grinder for grinding, thereby improving the work efficiency and safety when grinding the fixed bracket.

[0043] After the grinding of the side walls at both ends of the fixed bracket is completed, the third electric telescopic rod 83 is controlled to start, so that the first clamping plate 84 re-clamps the fixed bracket, and then the eighth electric telescopic rod 98 is controlled to retract, driving the second clamping plate 99 to return to its original position, and then the ninth electric telescopic rod 910 is controlled to start, and the second grinding rod 912 and the third grinding rod 915 are in contact with the side wall between the fixed parts, and then the fifth motor 916 and the sixth motor 917 are controlled to start, and the electric slide rail 96 is controlled to start, driving the slide plate 97 to move, so that the second grinding rod 912 and the third grinding rod 915 can grind the side wall of the middle end of the fixed bracket, and the third grinding rod 915 can grind the position that the second grinding rod 912 cannot grind, so as to prevent omission when grinding the fixed bracket. , then the eleventh electric telescopic rod 922 is controlled to start, so that the fourth polishing rod 924 is in contact with the curved surface of the fixed bracket, and then the seventh motor 925 and the eighth motor 926 are controlled to start at the same time, so that the fourth polishing rod 924 can rotate around the round rod 921 while rotating, and the eleventh electric telescopic rod 922 is controlled to continuously extend and retract, so that the fourth polishing rod 924 can always be in contact with the curved surface of the fixed bracket, which is convenient for polishing the curved part of the fixed bracket, and can polish the middle end position of fixed brackets of different lengths, and can also polish the curved surface of the fixed bracket, and is suitable for the curved surfaces of fixed brackets of different angles, with simple steps, reducing the operation process of the staff, and greatly improving the polishing efficiency and use effect of the device;

[0044] After completing the grinding of the middle end of the fixed bracket, when the first clamping plate 84 is used to clamp the two ends of the fixed bracket, one end of the multiple connecting rods 810 is respectively located directly above (below) the fixing bracket mounting hole, and the fifth electric telescopic rod 89 is controlled to start, thereby driving the connecting rod 810 to enter the inside of the mounting hole, and then the sixth electric telescopic rod 811 is controlled to start, so that the grinding plate 812 contacts the inner wall of the mounting hole, and the fourth motor 813 is controlled to start, so as to mobilize the connecting rod 810 to rotate, so that the grinding plate 812 grinds the inner wall of the mounting hole, which is convenient for the subsequent use of the fixed bracket to install the rotary tillage machine. After completing the grinding of the side wall of the fixed bracket, the inner wall of the mounting hole opened at both ends of the fixed bracket can be polished, which is convenient for the subsequent use of the mounting hole to install the fixed bracket, thereby improving the reliability of the device and the comprehensiveness of the grinding of the fixed bracket.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grinding device for processing cast iron parts in a rotary tillage machine, comprising a base plate (1), characterized in that: The top side wall of the bottom plate (1) is symmetrically provided with two first grooves (2), the inner walls of the two first grooves (2) are both rotatably connected to the first screw rods (3), the rod wall of the first screw rods (3) is threadedly rotatably connected to the moving plate (4), the upper side wall of the moving plate (4) is both fixedly connected to the outer shell (6), the inner wall of the outer shell (6) is rotatably connected to the second screw rod (7), the rod wall of the second screw rod (7) is threadedly rotatably connected to the moving block (11), the side wall of the outer shell (6) is provided with a strip opening for the moving block (11) to move, the side wall of the moving block (11) is fixedly connected to the side end clamping and grinding assembly (8), and the top side wall of the bottom plate (1) is fixedly connected to the middle end clamping and grinding assembly (9); The side end clamping and polishing assembly (8) comprises a second electric telescopic rod (81) fixedly connected to the side wall of the moving block (11), the telescopic end of the second electric telescopic rod (81) is fixedly connected to the first mounting plate (82), and the inner walls at both upper and lower ends of the first mounting plate (82) are symmetrically fixedly connected to fourth electric telescopic rods (85); The telescopic ends of the fourth electric telescopic rod (85) are fixedly connected to the second mounting plate (86), and the inner walls at both ends of the second mounting plate (86) are rotatably connected to the same first polishing rod (87); The inner walls at both upper and lower ends of the first mounting plate (82) are fixedly connected to a fifth electric telescopic rod (89), the telescopic ends of the fifth electric telescopic rod (89) are fixedly connected to a connecting rod (810), the rod walls of the connecting rod (810) are fixedly connected to a sixth electric telescopic rod (811), and the telescopic ends of the sixth electric telescopic rod (811) are fixedly connected to a polishing plate (812); The middle-end clamping and grinding assembly (9) comprises a seventh electric telescopic rod (91) fixedly connected to the top side wall of the bottom plate (1); the telescopic end of the seventh electric telescopic rod (91) is fixedly connected to a support plate (92); the side wall of the support plate (92) is rotatably connected to a support rod (93); one end of the support rod (93) is fixedly connected to a U-shaped telescopic shell (94); the upper and lower inner walls of the U-shaped telescopic shell (94) are respectively fixedly connected to two groups of mounting frames (95); the inner walls of the two groups of mounting frames (95) are both fixedly connected to electric slide rails (96); and the side walls of the two groups of electric slide rails (96) are both slidably connected to slide plates (97); The side walls of the two groups of slide plates (97) are fixedly connected to an eighth electric telescopic rod (98), the telescopic ends of the eighth electric telescopic rod (98) are fixedly connected to a second clamping plate (99), the side walls of the two groups of slide plates (97) are fixedly connected to a ninth electric telescopic rod (910), the telescopic ends of the ninth electric telescopic rod (910) are fixedly connected to a side plate (911), the side walls of the two groups of side plates (911) are rotatably connected to a second polishing rod (912), one end of one of the second polishing rods (912) in each group is fixedly connected to a first position-limiting telescopic rod (913), and the telescopic end of the first position-limiting telescopic rod (913) is fixedly connected to one end of another corresponding second polishing rod (912); The side walls at opposite ends of the two sets of side plates (911) are rotatably connected to the second position-limiting telescopic rods (914), and the telescopic ends of the two second position-limiting telescopic rods (914) are fixedly connected to the same third polishing rod (915).

2. A grinding device for processing cast iron parts in a rotary tillage machine according to claim 1, characterized in that: Two connecting plates (918) are symmetrically fixedly connected to the top side wall of the U-shaped telescopic shell (94), a tenth electric telescopic rod (919) is fixedly connected to the side wall of one of the connecting plates (918), the telescopic end of the tenth electric telescopic rod (919) is fixedly connected to the side wall of the other connecting plate (918), four fixing plates (920) are symmetrically fixedly connected to the side walls at both ends of the U-shaped telescopic shell (94), the side walls at both ends of the four fixing plates (920) are rotatably connected to the same round rod (921), and the rod wall of the round rod (921) is fixedly connected to the eleventh electric telescopic rod (922).

3. A grinding device for processing cast iron parts in a rotary tillage machine according to claim 2, characterized in that: The telescopic ends of the eleventh electric telescopic rod (922) are fixedly connected to the third mounting plate (923); the inner wall of the third mounting plate (923) is rotatably connected to the fourth polishing rod (924); the side wall of the third mounting plate (923) is fixedly connected to the seventh motor (925); the output end of the seventh motor (925) passes through the side wall of the third mounting plate (923) and is fixedly connected to one end of the fourth polishing rod (924); the side wall of the fixed plate (920) is fixedly connected to the eighth motor (926); the output end of the eighth motor (926) passes through the side wall of the fixed plate (920) and is fixedly connected to one end of the corresponding round rod (921).

4. A grinding device for processing cast iron parts in a rotary tillage machine according to claim 1, characterized in that: Two first motors (5) are symmetrically fixedly connected to the side walls at both ends of the bottom plate (1), and the output ends of the two first motors (5) both penetrate the side walls of the bottom plate (1) and are fixedly connected to one end of the corresponding first screw rod (3). A second motor (10) is fixedly connected to the top side wall of the housing (6), and the output end of the second motor (10) penetrates the side wall of the corresponding housing (6) and is fixedly connected to one end of the second screw rod (7). A plurality of third electric telescopic rods (83) are symmetrically fixedly connected to the inner walls at the upper and lower ends of the first mounting plate (82), and the telescopic ends of the third electric telescopic rods (83) are fixedly connected to the first clamping plate (84). A third motor (88) is fixedly connected to the side wall of the second mounting plate (86), and the output end of the third motor (88) penetrates the side wall of the second mounting plate (86) and is fixedly connected to one end of the corresponding first grinding rod (87). The upper and lower side walls of the plate (82) are both fixedly connected with a fourth motor (813), the output end of the fourth motor (813) passes through the side wall of the first mounting plate (82) and is fixedly connected to one end of the corresponding fifth electric telescopic rod (89), the side wall of the support plate (92) is fixedly connected with a ninth motor (927), the output end of the ninth motor (927) passes through the side wall of the support plate (92) and is fixedly connected to one end of the support rod (93), the side wall of one of the side plates (911) in each group is fixedly connected with a fifth motor (916) and a sixth motor (917), the output end of the fifth motor (916) passes through the side wall of the side plate (911) and is fixedly connected to one end of the corresponding second polishing rod (912), and the output end of the sixth motor (917) passes through the side wall of the side plate (911) and is fixedly connected to one end of the corresponding second limit telescopic rod (914).

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