Automatic grinding device for agricultural machine casting part blank

Abstract

The invention belongs to the technical field of casting part grinding, and particularly provides an agricultural machine casting part blank automatic grinding device which comprises a main supporting frame, an extruding, clamping and transferring assembly is arranged at the upper end of the inner side of the main supporting frame, and a circulating feeding mechanism is arranged on the upper portion of one end of the extruding, clamping and transferring assembly. The lower portion of the other end of the extruding, clamping and transferring assembly is provided with an overturning type vibration grinding assembly, and the inner side of the extruding, clamping and transferring assembly is provided with a clamping type grinding mechanism. According to the automatic grinding device for the agricultural machine casting part blank, the pre-acting principle is combined with an elastic structure, small casting parts can be clamped and conveyed in batches, the small casting parts are preliminarily ground in the transferring process, meanwhile, the vibration grinding technology is utilized, and the grinding efficiency is improved. Holes and special-shaped structures of the small casting parts are evenly ground, whole-process operation of feeding, batch grinding and discharging of the small casting parts is achieved, and the automation degree is high.

Description

Technical Field

[0001] This invention belongs to the field of casting grinding technology, specifically referring to an automatic grinding device for agricultural machinery casting blanks. Background Technology

[0002] Agricultural machinery castings, as core components of agricultural machinery, are widely used in the transmission systems, support structures, and working parts of equipment such as tractors, harvesters, and seeders. Their surface quality directly affects the assembly accuracy, operational stability, and service life of the entire agricultural machinery. In the production process of agricultural machinery castings, after the blanks are formed by processes such as sand casting and metal mold casting, defects such as flash, burrs, and oxide scale often remain on the surface. Moreover, due to problems such as mold precision deviations and uneven metal flow during the casting process, the surface of the blanks is prone to unevenness and dimensional deviations. Therefore, it is necessary to grind and repair the surface to meet the process requirements of subsequent machining or assembly.

[0003] However, in the existing technology, the grinding process of agricultural machinery casting blanks mainly relies on manual grinding. Especially for small castings such as agricultural machinery gears or connecting flanges, it is difficult to carry out batch grinding. Furthermore, the holes and irregular structures of small castings are difficult to grind precisely with grinding equipment, and still need to be ground manually one by one, which is time-consuming, labor-intensive, and has a low degree of automation. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides an automatic grinding device for agricultural machinery casting blanks. Utilizing a pre-action principle combined with an elastic structure and a specially designed compression clamping and transfer assembly, it can batch-grind and transport small castings. During the transfer process, the small castings undergo preliminary grinding. Simultaneously, a vibratory grinding process is used to uniformly grind the holes and irregularly shaped areas of the small castings. This achieves a high degree of automation in the entire process of feeding, batch grinding, and unloading small castings.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The present invention provides an automatic grinding device for agricultural machinery casting blanks, including a main support frame, the main support frame being H-shaped in general. An upper support cover is connected to the upper end of the main support frame. An extrusion clamping and transfer assembly, a clamping grinding mechanism, a circulating feeding mechanism, and a flipping vibration grinding assembly are respectively provided on the inner side of the main support frame. The extrusion clamping and transfer assembly is located at the upper end of the main support frame. The circulating feeding mechanism is located at the upper part of one end of the extrusion clamping and transfer assembly. The flipping vibration grinding assembly is located at the lower part of the other end of the extrusion clamping and transfer assembly. The clamping grinding mechanism is located inside the extrusion clamping and transfer assembly and inside the upper support cover.

[0006] This device uses a circulating feeding mechanism to feed small casting blanks in batches to the extrusion clamping and transfer assembly. While the extrusion clamping and transfer assembly is transporting the castings, the clamping grinding mechanism performs preliminary grinding on the castings. Then, the castings are transported to the flipping vibratory grinding assembly for grinding of the holes and surfaces of the castings. This realizes the entire process of feeding, grinding and discharging small casting blanks.

[0007] Furthermore, the extrusion clamping and transfer assembly includes a drive wheel, a driven wheel, a transfer belt, and a clamping mechanism. The drive wheel and the driven wheel are rotatably mounted on the upper inner side of the main support frame. The drive wheel is driven by a drive motor, which is located on the side wall of the main support frame. The drive wheel and the driven wheel are arranged in a dumbbell shape, that is, the two end wheels are larger and the middle shaft is smaller. The transfer belt is symmetrically wound around the drive wheel and the driven wheel, and the transfer belt is wound around the two end wheels of the drive wheel and the driven wheel. The clamping mechanism is evenly distributed on the transfer belt.

[0008] Furthermore, the flip-type vibratory grinding assembly includes a vibratory grinding mechanism, a screen, and a recycling bin. The vibratory grinding mechanism is rotatably positioned below the end of the conveyor belt away from the circulating feeding mechanism. The screen covers the side of the vibratory grinding mechanism away from the conveyor belt and is connected to the main support frame. The lower part of the screen is arc-shaped, and a discharge belt is horizontally connected to the lower end of the screen. The discharge belt is located inside the main support frame and is driven to rotate by a discharge motor to discharge the ground parts. The recycling bin is located below the screen.

[0009] Furthermore, the clamping mechanism includes a base, an electric telescopic column, a sliding frame, a retractable plate, and a clamping plate. The base is symmetrically arranged on symmetrical transfer belts and is L-shaped. The electric telescopic column is located on the side wall of the base, with its output end facing outward. The electric telescopic column is driven by a clamping motor located on the opposite side wall of the symmetrical base. The sliding frame is vertically arranged at the output end of the electric telescopic column. The retractable plate is connected to the upper end of the sliding frame and is inverted L-shaped. The clamping plates are evenly distributed between the symmetrical retractable plates, and symmetrical connections are made between the evenly distributed clamping plates and between the clamping plates and the retractable plates. The tension connecting plates are telescopic plates, symmetrically arranged about the central clamping plate. This facilitates the inward clamping and pressing of the symmetrical retracting plates. Springs are installed inside the tension connecting plates. Rubber pads cover the opposite sidewalls of the clamping and retracting plates. When the casting is between the clamping plates, the clamping motor starts, and the electric telescopic column retracts, causing the symmetrical sliding frame to move the retracting plates inward. This, in turn, causes the tension connecting plates to retract, compressing the springs within the tension connecting plates. The retracting clamping plates then compress and press the casting's sides (the casting's height is greater than the clamping plate's height). The rubber pads provide strong friction, ensuring the clamping plates firmly hold the casting.

[0010] Furthermore, the vibratory grinding mechanism includes a tilting support, a vibrator, and a receiving hopper. The tilting support is rotatably mounted on the inner side of the main support frame and is located below the outermost clamping mechanism. The tilting support is cylindrical in shape and is driven by a tilting motor, which is located on the side wall of the main support frame. The inner side of the tilting support is divided into three vibration spaces by a connecting plate. The vibrator is located on the bottom wall of the inner vibration space of the tilting support. The receiving hopper is connected to the vibrator, and the opening of the receiving hopper faces the circumferential edge of the tilting support. Vibration springs are evenly distributed between the side wall of the receiving hopper and the connecting plate. Preferably, a screw conveyor is vertically installed inside the recycling bin. The screw conveyor is located on the side of the screen away from the vibrating grinding mechanism. The upper end of the screw conveyor is inclinedly connected to a feeding channel, and the outlet of the feeding channel is located above the uppermost receiving hopper. In use, when the clamping mechanism, holding the pre-polished casting, moves above the tilting support, the clamping motor resets, the electric telescopic column extends, and pushes the symmetrical sliding frame to open the retracting plate outward. This causes the evenly distributed clamping plates to move away from each other, and the casting is no longer clamped, falling into the uppermost receiving hopper. After receiving the casting, the vibrator starts, causing the hopper to vibrate. This causes the diamond abrasive inside to continuously vibrate and grind the holes and surface of the small casting blank. The vibration spring acts as a buffer, preventing the receiving hopper from impacting the tilting support. When the next set of clamping mechanisms moves above the drive wheel, the tilting motor starts, causing the tilting support to rotate 120 degrees toward the screen, pouring the diamond abrasive and the ground castings from the receiving hopper onto the screen. The diamond abrasive falls through the screen into the recycling bin, while the castings are intercepted by the screen and roll onto the discharge belt through the arc of the screen. At the same time, the screw conveyor works, lifting and transporting the diamond abrasive from the recycling bin to the feeding channel, and then from the feeding channel to the receiving hopper at the top, waiting for the next batch of castings to be ground, thus creating a cycle.

[0011] Furthermore, an inner support is provided between the driving wheel and the driven wheel, and the two ends of the inner support are sleeved on the rotating shafts of the driving wheel and the driven wheel; the circulating feeding mechanism includes a feeding support plate, a feeding seat, a pre-storage ramp and a feeding tray. The feeding support plate is located on the inner support and is located inside the movement trajectory of the clamping mechanism. The feeding support plate is located above the driving wheel and below the gathering plate that slides past it. The feeding seat is connected to the inner side of the main support frame and is located above the clamping mechanism. The pre-storage ramp is connected to the end of the feeding seat near the driving wheel. The feeding tray is movably located on the upper part of the feeding seat, and the bottom wall of the feeding tray is inclined towards the pre-storage ramp. A push block is rotatably provided on the feeding seat. The push block is waist-shaped and is driven by a rotating motor. The push block is located on one side of the feeding tray. Return springs are evenly distributed between the side of the feeding tray away from the push block and the feeding seat. Furthermore, a telescopic transition plate is embedded and slidably provided on the side of the pre-storage slope near the feeding support plate. The telescopic transition plate is driven by a telescopic motor and is located directly above the feeding support plate. The telescopic transition plate is higher than the clamping mechanism. Spacing plates are evenly distributed on the upper part of the pre-storage slope. The distribution spacing of the spacing plates is the same as the distribution spacing of the clamping plates. The spacing plates extend above the telescopic transition plate. The ends of the evenly distributed spacing plates away from the pre-storage slope are connected to baffles.

[0012] Preferably, a feeding block is provided at the connection between the feeding seat and the pre-storage slope. A first gate is evenly distributed on the lower part of the feeding block. The first gate is driven by a first motor. A feeding shaft is connected to the upper wall of the evenly distributed partition plates. The feeding shaft is driven by a second motor. The feeding shaft is located at the end of the pre-storage slope away from the feeding seat. A second gate is linearly evenly distributed on the side wall of the feeding shaft. The first gate and the second gate are respectively movably disposed between the partition plates.

[0013] In operation, the casting blanks to be ground are placed into the feeding tray. The motor is then started, causing the push block to rotate. Simultaneously, under the elastic push of the return spring, the feeding tray slides left and right on the loading seat. The castings slide orderly onto the inclined bottom wall of the feeding tray towards the first gate. At this time, the second gate is positioned between the partition plates. The first motor starts, and the first gate retracts into the feeding block, allowing a batch of castings to slide onto the pre-storage ramp. The first gate then descends, completing the pre-storage loading of one batch of castings. When a set of clamping mechanisms moves directly above the loading support plate, the second motor starts, and the second gate rotates towards the baffle. This causes the castings on the pre-stored ramp to slide onto the telescopic transition plate. Then, the telescopic motor starts, and the telescopic transition plate retracts into the pre-stored ramp. The castings on it fall onto the feeding support plate, where they are squeezed and held by the clamping mechanism and pulled away from the feeding support plate. At the same time, the second motor resets the feeding shaft, and the second gate is blocked again in the partition plate. At this time, the first motor starts again, and the first gate rises, allowing the next batch of castings to fall onto the pre-stored ramp. Then, the first gate falls, and the telescopic transition plate resets, waiting for the next clamping mechanism to slide to this position. This cycle repeats, achieving automated and batch-based cyclic feeding.

[0014] Furthermore, the clamping grinding mechanism includes a waste collection box, a lower grinding frame, a lower grinding roller, an electric pusher, an upper grinding frame, and an upper grinding roller. The waste collection box is located in the middle of the inner support. The lower grinding frame is linearly arranged in the waste collection box along the movement direction of the conveyor belt. The middle of the lower grinding frame is hollowed out to facilitate the falling of grinding debris into the waste collection box. The lower grinding roller is rotatably located at the upper end of the lower grinding frame. The upper end of the lower grinding roller is on the same plane as the upper wall of the feeding support plate. The electric pusher is located inside the upper support cover. The upper grinding frame is linearly arranged at the output end of the electric pusher along the movement direction of the conveyor belt. The upper grinding roller is rotatably located at the lower end of the upper grinding frame. The upper grinding roller is movably located above the clamping mechanism. The positions of the linearly arranged upper grinding roller and lower grinding roller are correspondingly set. Both the upper and lower grinding rollers are driven by a grinding motor.

[0015] Preferably, the main support frame is equipped with a main controller, which is a PLC controller. The main power motor, clamping motor, tilting motor, screw conveyor, vibrator, discharge motor, rotating motor, telescopic motor, first motor, second motor, electric push block and grinding motor are electrically connected to the main controller.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows: This invention provides an automatic grinding device for agricultural machinery casting blanks. It employs a pre-action principle combined with an elastic structure and a set-up extrusion clamping and transfer assembly, enabling batch clamping and transport of small castings. During transport, a clamping grinding mechanism performs preliminary grinding on the upper and lower surfaces of the small castings. Simultaneously, a vibratory grinding process is used to uniformly grind the holes and irregularly shaped areas of the small castings with diamond abrasive. The device also features automatic material discharge and diamond abrasive recycling. Furthermore, a circulating feeding mechanism is included, pre-storing multiple small castings on a pre-stored ramp, achieving the technical effect of cyclically transporting the castings to the clamping mechanism. Through the coordinated action of the circulating feeding mechanism, the extrusion clamping and transfer assembly, the clamping grinding mechanism, the flipping vibration grinding assembly, and the discharge belt, the entire process of feeding, batch grinding, and discharging of small casting blanks is fully automated. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an automatic grinding device for agricultural machinery casting blanks provided by the present invention; Figure 2 This is a front view of an automatic grinding device for agricultural machinery casting blanks provided by the present invention; Figure 3 A schematic diagram of the combined structure of the extrusion clamping and transfer assembly and the clamping grinding mechanism; Figure 4 Front view of the combined structure of the extrusion clamping and transfer assembly and the clamping grinding mechanism; Figure 5 This is a schematic diagram of the clamping mechanism; Figure 6 A schematic diagram of the structure of a flip-type vibratory grinding assembly; Figure 7 A cross-sectional schematic diagram of the vibratory grinding mechanism; Figure 8 A schematic diagram of the combined structure of the extrusion clamping and transfer assembly and the circulating feeding mechanism; Figure 9 for Figure 8 A magnified view of a portion of point A in the middle; Figure 10 This is a schematic diagram of the circulating feeding mechanism.

[0018] The components include: 1. Main support frame; 2. Upper support cover; 3. Extrusion clamping and transfer assembly; 4. Circulating feeding mechanism; 5. Tilting vibratory grinding assembly; 6. Clamping grinding mechanism; 7. Discharge belt; 8. Inner support; 9. Main power motor; 10. Main power wheel; 11. Driven power wheel; 12. Transfer belt; 13. Clamping mechanism; 14. Base; 15. Electric telescopic column; 16. Clamping motor; 17. Sliding frame; 18. Gathering plate; 19. Clamping plate; 20. Stretching connecting plate; 21. Lower grinding frame; 22. Lower grinding roller; 23. Electric push block; 24. 25. Upper grinding roller, 26. Upper grinding frame, 27. Waste collection box, 28. Vibration grinding mechanism, 29. Screen, 30. Recycling box, 31. Screw conveyor, 32. Feeding channel, 33. Tilting support frame, 34. Receiving hopper, 35. Vibration spring, 36. Feeding support plate, 37. Feeding seat, 38. Discharge tray, 39. Telescopic transition plate, 40. Spacing plate, 41. Baffle, 42. Discharge block, 43. First gate, 44. Feeding shaft, 45. Second gate, 46. Push block, 47. Reset spring, 48. Pre-stored ramp. Detailed Implementation

[0019] The technical solution of the present invention will be further described in detail below with reference to specific embodiments. The parts of the technical features or connection relationships described in the present invention that are not described in detail are all existing technologies.

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] like Figures 1-10 As shown, the present invention provides an automatic grinding device for agricultural machinery casting blanks, including a main support frame 1, which is H-shaped in general. The upper end of the main support frame 1 is connected to an upper support cover 2. The inner side of the main support frame 1 is respectively provided with a compression clamping and transfer assembly 3, a clamping grinding mechanism 6, a circulating feeding mechanism 4, and a flipping vibration grinding assembly 5. The compression clamping and transfer assembly 3 is located at the upper end of the main support frame 1, the circulating feeding mechanism 4 is located at the upper part of one end of the compression clamping and transfer assembly 3, the flipping vibration grinding assembly 5 is located at the lower part of the other end of the compression clamping and transfer assembly 3, the clamping grinding mechanism 6 is located inside the compression clamping and transfer assembly 3, and the clamping grinding mechanism 6 is located inside the upper support cover 2.

[0022] The extrusion clamping and transfer assembly 3 includes a drive wheel 10 and a driven wheel 11. The drive wheel 10 and the driven wheel 11 are rotatably mounted on the upper inner side of the main support frame 1. The drive wheel 10 is driven by a drive motor 9, which is mounted on the side wall of the main support frame 1. The drive wheel 10 and the driven wheel 11 are arranged in a dumbbell shape, that is, the two end wheels are larger and the middle shaft is smaller. A transfer belt 12 is symmetrically wound between the drive wheel 10 and the driven wheel 11. Clamping mechanisms 13 are evenly distributed on the transfer belt 12. An inner support 8 is provided between the drive wheel 10 and the driven wheel 11. The two ends of the inner support 8 are sleeved on the shafts of the drive wheel 10 and the driven wheel 11.

[0023] The clamping mechanism 13 includes a base 14, which is symmetrically arranged on symmetrical conveyor belts 12. The base 14 is L-shaped. An electric telescopic column 15 is provided on the side wall of the base 14, with its output end facing outwards. The electric telescopic column 15 is driven by a clamping motor 16, which is located on opposite side walls of the symmetrical base 14. A sliding frame 17 is vertically provided at the output end of the electric telescopic column 15. A retractable plate 18 is connected to the upper end of the sliding frame 17. The retractable plate 18 is inverted L-shaped, and evenly distributed between the symmetrical retractable plates 18 are... The clamping plate 19 (the height of the casting is greater than the height of the clamping plate 19) is symmetrically connected with tension connecting plates 20 between the evenly distributed clamping plates 19 and between the clamping plates 19 and the retracting plate 18. The tension connecting plates 20 are telescopic plates. The evenly distributed tension connecting plates 20 are symmetrical about the middle clamping plate 19, which facilitates the symmetrical retracting plate 18 to squeeze and clamp inward. The tension connecting plates 20 are equipped with springs inside. The opposite side walls of the evenly distributed clamping plates 19 and the retracting plate 18 are covered with rubber pads to provide strong friction and protect the surface condition of the clamping part of the casting.

[0024] The circulating feeding mechanism 4 includes a feeding support plate 36 and a feeding seat 37. The feeding support plate 36 is mounted on the inner support 8 and is located inside the movement trajectory of the clamping mechanism 13. The feeding support plate 36 is positioned above the drive wheel 10 and below the gathering plate 18 that slides past it. The feeding seat 37 is connected to the inner side of the main support frame 1 and is located above the clamping mechanism 13. A pre-stored ramp 48 is connected to one end of the feeding seat 37 near the drive wheel 10. The upper part of the material base 37 is movably provided with a feeding plate 38. The bottom wall of the feeding plate 38 is inclined towards the pre-storage slope 48. A push block 46 is rotatably provided on the feeding base 37. The push block 46 is waist-shaped and is driven by a rotating motor. The push block 46 is located on one side of the feeding plate 38. The side of the feeding plate 38 away from the push block 46 and the feeding base 37 are evenly distributed with return springs 47. Under the joint action of the push block 46 and the return springs 47, the feeding plate 38 slides back and forth on the feeding base 37. A telescopic transition plate 39 is embedded and slidably mounted on the side of the pre-storage ramp 48 near the feeding support plate 36. The telescopic transition plate 39 is driven by a telescopic motor and is located directly above the feeding support plate 36. The telescopic transition plate 39 is higher than the clamping mechanism 13. Spacing plates 40 are evenly distributed on the upper part of the pre-storage ramp 48. The distribution spacing of the spacing plates 40 is the same as that of the clamping plates 19. The spacing plates 40 extend above the telescopic transition plate 39. A baffle 4 is connected to the end of the evenly distributed spacing plates 40 away from the pre-storage ramp 48. 1; A feeding block 42 is provided at the connection between the feeding seat 37 and the pre-storage ramp 48. The lower part of the feeding block 42 is evenly distributed with first gate plates 43. The first gate plates 43 are driven by a first motor. The upper wall of the evenly distributed partition plates 40 is connected to a feeding shaft 44. The feeding shaft 44 is driven by a second motor. The feeding shaft 44 is located at the end of the pre-storage ramp 48 away from the feeding seat 37. The side wall of the feeding shaft 44 is linearly evenly distributed with second gate plates 45. The first gate plates 43 and the second gate plates 45 are respectively movably disposed between the partition plates 40.

[0025] The clamping grinding mechanism 6 includes a waste collection box 26 and an electric pusher 23. The waste collection box 26 is located in the middle of the inner support 8. A lower grinding frame 21 is linearly arranged inside the waste collection box 26 along the movement direction of the conveyor belt 12. The middle of the lower grinding frame 21 is hollowed out to facilitate the falling of grinding debris into the waste collection box 26. A lower grinding roller 22 is rotatably arranged at the upper end of the lower grinding frame 21. The upper end of the lower grinding roller 22 is on the same plane as the upper wall of the feeding support plate 36. The electric pusher 23 is located inside the upper support cover 2. An upper grinding frame 25 is linearly arranged at the output end of the electric pusher 23 along the movement direction of the conveyor belt 12. An upper grinding roller 24 is rotatably arranged at the lower end of the upper grinding frame 25. The upper grinding roller 24 is movably arranged above the clamping mechanism 13. The positions of the linearly arranged upper grinding roller 24 and lower grinding roller 22 are correspondingly arranged. Both the upper grinding roller 24 and the lower grinding roller 22 are driven by a grinding motor.

[0026] The flip-type vibratory grinding assembly 5 includes a vibratory grinding mechanism 27 and a screen 28. The vibratory grinding mechanism 27 is rotatably located below the end of the conveyor belt 12 away from the circulating feeding mechanism 4. The screen 28 covers the side of the vibratory grinding mechanism 27 away from the conveyor belt 12 and is connected to the main support frame 1. The lower part of the screen 28 is arc-shaped, and the lower end of the screen 28 is horizontally connected to a discharge belt 7. The discharge belt 7 is located inside the main support frame 1 and is driven to rotate by a discharge motor to discharge the ground parts. A recycling box 29 is located below the screen 28, and a screw conveyor 30 is vertically installed inside the recycling box 29. The screw conveyor 30 is located on the side of the screen 28 away from the vibratory grinding mechanism 27, and the upper end of the screw conveyor 30 is inclinedly connected to a feeding channel 31. The outlet of the feeding channel 31 is located above the vibratory grinding mechanism 27.

[0027] The vibratory grinding mechanism 27 includes a tilting support 32, which is rotatably mounted on the inner side of the main support frame 1. The tilting support 32 is located below the outermost clamping mechanism 13. The tilting support 32 is cylindrical in shape and is driven by a tilting motor, which is located on the side wall of the main support frame 1. The inner side of the tilting support 32 is divided into three vibration spaces by a connecting plate. A vibrator 34 is provided on the bottom wall of the inner vibration space of the tilting support 32. A receiving hopper 33 is connected to the vibrator 34. The opening of the receiving hopper 33 faces the circumferential edge of the tilting support 32. Vibration springs 35 are evenly distributed between the side wall of the receiving hopper 33 and the connecting plate.

[0028] The main support frame 1 is equipped with a main controller, which is a PLC controller. The main power motor 9, clamping motor 16, tilting motor, screw conveyor 30, vibrator 34, discharge motor, rotating motor, telescopic motor, first motor, second motor, electric push block 23 and grinding motor are electrically connected to the main controller.

[0029] Working principle and workflow: In practical use, the staff pours diamond powder into the recycling bin 29 and the top receiving hopper 33, then puts the casting blanks to be ground into the discharge tray 38. Then, the main controller is started, the motor is turned on, and the push block 46 is rotated. At the same time, under the elastic push of the return spring 47, the discharge tray 38 is pushed to slide left and right on the loading seat 37. The castings slide orderly on the inclined bottom wall of the discharge tray 38 toward the first gate 43. At this time, the second gate 45 is between the partition plates 40. The first motor is started, the first gate 43 retracts into the discharge block 42, so that a batch of castings slides onto the pre-storage slope 48. Then the first gate 43 falls down, completing the pre-storage loading of a batch of castings.

[0030] When a set of clamping mechanisms 13 moves directly above the loading support plate 36, the second motor starts, and the second gate 45 rotates toward the baffle 41, causing the castings on the pre-stored ramp 48 to slide onto the telescopic transition plate 39. Subsequently, the telescopic motor starts, and the telescopic transition plate 39 retracts into the pre-stored ramp 48, causing the castings on it to fall onto the loading support plate 36. The castings are simultaneously positioned between the clamping plates 19. The clamping motor 16 starts, and the electric telescopic column 15 retracts, causing the symmetrical sliding frame 17 to drive the retracting plate 18 to retract inward, thereby causing the evenly distributed tension connecting plate 20 to retract. The springs inside the tension connecting plate 20 are compressed. The evenly distributed clamping plates 19 contract and compress both sides of the casting (the height of the casting is greater than the height of the clamping plates 19). The rubber pads provide strong friction, allowing the clamping plates 19 to firmly clamp the casting. At the same time, the second motor resets the feeding shaft 44, and the second gate 45 blocks the spacer plate 40 again. At this time, the first motor starts again, the first gate 43 rises, and the next batch of castings falls onto the pre-stored ramp 48. Then the first gate 43 falls, the telescopic transition plate 39 resets, and waits for the next clamping mechanism 13 to slide to this position. This cycle is repeated to achieve automated and batch feeding.

[0031] Subsequently, the drive wheel 10 rotates, and the clamping mechanism 13, which holds the castings in batches, slides down to the lower grinding roller 22 under the drive of the transfer belt 12. Since the upper end of the lower grinding roller 22 is on the same plane as the upper wall of the feeding support plate 36, when the clamping mechanism 13 clamps the castings through the array of lower grinding rollers 22, the lower grinding rollers 22 can directly grind the lower part of the castings. At this time, the electric push block 23 is activated, causing the upper grinding frame 25 to move down, and then the upper grinding roller 24 is pressed down to the upper part of the castings for grinding. The positions of the upper grinding roller 24 and the lower grinding roller 22 are set accordingly. That is, when grinding the castings, the upper and lower directions of the castings are clamped by the upper grinding roller 24 and the lower grinding roller 22, and the left and right directions of the castings are clamped by the clamping plate 19, so as to prevent the castings from being misaligned and detached from the clamping plate 19 during grinding. The grinding debris falls directly into the waste collection box 26 for collection.

[0032] After initial grinding, the casting is moved to one end of the drive wheel 11 by the clamping mechanism 13. When the clamping mechanism 13 moves above the tilting support 32, the clamping motor 16 resets, the electric telescopic column 15 extends, pushing the symmetrical sliding frame 17 to open the retracting plate 18 outward, thus causing the evenly distributed clamping plates 19 to move away from each other. The stretching connecting plate 20 extends under the action of the spring and the clamping plates 19, and the casting is no longer clamped. Then, when the clamping mechanism 13 rotates to a position diagonally below the drive wheel 11, it falls into the uppermost receiving hopper 33. After the receiving hopper 33 receives the casting, the vibrator 34 starts, causing the receiving hopper 33 to vibrate, which in turn causes the diamond grit inside to continuously vibrate and grind the holes and irregular structures of the casting, which is effective for the holes and irregular structures of small casting blanks. The surface is uniformly polished, and the vibration spring 35 acts as a buffer to prevent the receiving hopper 33 from hitting the connecting plate of the tilting support 32. When the next set of clamping mechanisms 13 moves above the power wheel 11, the tilting motor starts, causing the tilting support 32 to rotate 120 degrees toward the screen 28, pouring the diamond abrasive and polished castings in the receiving hopper 33 onto the screen 28. The diamond abrasive falls into the recycling box 29 through the screen 28, while the castings are intercepted by the screen 28 and roll onto the discharge belt 7 through the arc part of the screen 28. At the same time, the screw conveyor 30 works, lifting and transporting the diamond abrasive in the recycling box 29 to the feeding channel 31, and then conveying it to the receiving hopper 33 at the top, waiting for the next batch of castings to be ground.

[0033] It is worth noting that the logic control module and timing control module of the main controller, as well as the use of the vibrator 34 and the screw conveyor 30, are all existing technologies and will not be described in detail here.

[0034] The above is the overall workflow of this invention. Simply repeat this process the next time you use it.

[0035] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. An automatic grinding device for agricultural machinery casting blanks, comprising a main support frame (1), the main support frame (1) being H-shaped in general, characterized in that: The upper end of the main support frame (1) is connected to the upper support cover (2). The inner side of the main support frame (1) is respectively provided with a squeezing and clamping transfer assembly (3), a clamping grinding mechanism (6), a circulating feeding mechanism (4) and a flipping vibration grinding assembly (5). The squeezing and clamping transfer assembly (3) is located at the upper end of the main support frame (1). The circulating feeding mechanism (4) is located at the upper part of one end of the squeezing and clamping transfer assembly (3). The flipping vibration grinding assembly (5) is located at the lower part of the other end of the squeezing and clamping transfer assembly (3). The clamping grinding mechanism (6) is located inside the squeezing and clamping transfer assembly (3) and inside the upper support cover (2). The extrusion clamping and transfer assembly (3) includes a drive wheel (10), a driven wheel (11), a transfer belt (12), and a clamping mechanism (13). The drive wheel (10) and the driven wheel (11) are rotatably mounted on the upper inner side of the main support frame (1). The drive wheel (10) is driven by a drive motor (9), which is mounted on the side wall of the main support frame (1). The drive wheel (10) and the driven wheel (11) are arranged in a dumbbell shape. The transfer belt (12) is symmetrically wound around the drive wheel (10) and the driven wheel (11). The clamping mechanism (13) is evenly distributed on the transfer belt (12). The flip-type vibratory grinding assembly (5) includes a vibratory grinding mechanism (27), a screen (28), and a recycling box (29). The vibratory grinding mechanism (27) is rotatably located below the end of the conveyor belt (12) away from the circulating feeding mechanism (4). The screen (28) covers the side of the vibratory grinding mechanism (27) away from the conveyor belt (12). The screen (28) is connected to the main support frame (1). The lower part of the screen (28) is arc-shaped. The lower end of the screen (28) is horizontally connected to the discharge belt (7). The discharge belt (7) is located inside the main support frame (1). The recycling box (29) is located below the screen (28).

2. The automatic grinding device for agricultural machinery casting blanks according to claim 1, characterized in that: The clamping mechanism (13) includes a base (14), an electric telescopic column (15), a sliding frame (17), a retracting plate (18), and a clamping plate (19). The base (14) is symmetrically arranged on the symmetrical transfer belts (12) and is L-shaped. The electric telescopic column (15) is located on the side wall of the base (14) and is driven by a clamping motor (16). The clamping motor (16) is located on the opposite side wall of the symmetrical base (14). The sliding frame (17) is vertically arranged. At the output end of the electric telescopic column (15), the retractable plate (18) is connected to the upper end of the sliding frame (17). The retractable plate (18) is arranged in an inverted L shape. The clamping plates (19) are evenly distributed between the symmetrical retractable plates (18). The clamping plates (19) and the retractable plates (18) are symmetrically connected by tension connecting plates (20). The tension connecting plates (20) are provided with springs inside. The opposite side walls of the clamping plates (19) and the retractable plates (18) are covered with rubber pads.

3. The automatic grinding device for agricultural machinery casting blanks according to claim 2, characterized in that: The vibratory grinding mechanism (27) includes a tilting support (32), a vibrator (34), and a receiving hopper (33). The tilting support (32) is rotatably mounted on the inner side of the main support frame (1). The tilting support (32) is located below the outermost clamping mechanism (13). The tilting support (32) is cylindrical in shape. The tilting support (32) is driven by a tilting motor, which is located on the side wall of the main support frame (1). The inner side of the tilting support (32) is divided into three vibration spaces by a connecting plate. The vibrator (34) is located on the bottom wall of the vibration space inside the tilting support (32). The receiving hopper (33) is connected to the vibrator (34). The opening of the receiving hopper (33) faces the circumferential edge of the tilting support (32). Vibration springs (35) are evenly distributed between the side wall of the receiving hopper (33) and the connecting plate.

4. The automatic grinding device for agricultural machinery casting blanks according to claim 3, characterized in that: The recycling bin (29) is vertically equipped with a screw conveyor (30). The screw conveyor (30) is located on the side of the screen (28) away from the vibrating grinding mechanism (27). The upper end of the screw conveyor (30) is inclinedly connected to a feeding channel (31). The outlet of the feeding channel (31) is located above the uppermost receiving hopper (33).

5. The automatic grinding device for agricultural machinery casting blanks according to claim 4, characterized in that: An inner support (8) is provided between the driving power wheel (10) and the driven power wheel (11), and the two ends of the inner support (8) are sleeved on the rotating shaft of the driving power wheel (10) and the driven power wheel (11); The circulating feeding mechanism (4) includes a feeding support plate (36), a feeding seat (37), a pre-storage ramp (48), and a discharge tray (38). The feeding support plate (36) is mounted on the inner support (8) and is located inside the movement trajectory of the clamping mechanism (13). The feeding support plate (36) is located above the drive wheel (10). The feeding seat (37) is connected to the inner side of the main support frame (1) and is located above the clamping mechanism (13). The pre-storage ramp (48) is located above the drive wheel (10). The feeding plate (38) is connected to the feeding seat (37) at one end near the drive wheel (10). The feeding plate (38) is movably disposed on the upper part of the feeding seat (37). The bottom wall of the feeding plate (38) is inclined towards the pre-stored slope (48). The feeding seat (37) is rotatably provided with a push block (46). The push block (46) is waist-shaped. The push block (46) is disposed on one side of the feeding plate (38). The side of the feeding plate (38) away from the push block (46) and the feeding seat (37) are evenly distributed with return springs (47).

6. The automatic grinding device for agricultural machinery casting blanks according to claim 5, characterized in that: The pre-storage ramp (48) has a telescopic transition plate (39) embedded and slidably provided on the side near the loading support plate (36). The telescopic transition plate (39) is located directly above the loading support plate (36) and is higher than the clamping mechanism (13). The upper part of the pre-storage ramp (48) is evenly distributed with partition plates (40). The distribution spacing of the partition plates (40) is the same as that of the clamping plate (19). The partition plates (40) extend above the telescopic transition plate (39). The ends of the evenly distributed partition plates (40) away from the pre-storage ramp (48) are connected with baffles (41).

7. The automatic grinding device for agricultural machinery casting blanks according to claim 6, characterized in that: A feeding block (42) is provided at the connection between the feeding seat (37) and the pre-storage ramp (48). A first gate plate (43) is evenly distributed on the lower part of the feeding block (42). The first gate plate (43) is driven by a first motor. A feeding shaft (44) is connected to the upper wall of the evenly distributed partition plate (40). The feeding shaft (44) is driven by a second motor. The feeding shaft (44) is located at the end of the pre-storage ramp (48) away from the feeding seat (37). A second gate plate (45) is evenly distributed linearly on the side wall of the feeding shaft (44). The first gate plate (43) and the second gate plate (45) are respectively movably disposed between the partition plates (40).

8. The automatic grinding device for agricultural machinery casting blanks according to claim 7, characterized in that: The clamping grinding mechanism (6) includes a waste collection box (26), a lower grinding frame (21), a lower grinding roller (22), an electric pusher (23), an upper grinding frame (25), and an upper grinding roller (24). The waste collection box (26) is located in the middle of the inner support (8). The lower grinding frame (21) is linearly arranged in the waste collection box (26) along the movement direction of the conveyor belt (12). The lower grinding roller (22) is rotatably located at the upper end of the lower grinding frame (21). The upper end of the lower grinding roller (22) is aligned with the upper wall of the upper support plate (36). Located on the same plane, the electric push block (23) is located inside the upper support cover (2). The upper grinding frame (25) is linearly arrayed at the output end of the electric push block (23) along the movement direction of the transfer belt (12). The upper grinding roller (24) is rotatably located at the lower end of the upper grinding frame (25). The upper grinding roller (24) is movably located above the clamping mechanism (13). The positions of the linearly arrayed upper grinding roller (24) and the lower grinding roller (22) are correspondingly set. Both the upper grinding roller (24) and the lower grinding roller (22) are driven by a grinding motor.

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