Multi-station steel casting polishing device and polishing method thereof

Abstract

This invention relates to the field of continuous casting steel parts processing technology, and particularly to a multi-station casting steel parts grinding device and its grinding method. The device includes a support base, a rotary worktable rotatably connected to the center of the top surface of the support base, and connecting bases at all four ends of the top surface of the rotary worktable. An induction seat A is fixedly connected to the front of the connecting base at the top of the rotary worktable. This invention, through its four-station rotary worktable design, enables simultaneous clamping, angle adjustment, grinding, and unloading processes, significantly improving production efficiency. It is suitable for batch casting steel parts grinding scenarios. The rotating frame is driven by a servo motor B, which can precisely adjust the workpiece grinding angle. Combined with six limit slots and a plug-in locking structure, it achieves multi-level rigid positioning to meet the grinding requirements of different surfaces or edges. By utilizing infrared sensors and receivers, it achieves automatic recognition of worktable and angle positioning, improving grinding accuracy.

Description

Technical Field

[0001] This invention relates to the field of continuous casting steel parts processing technology, and in particular to a multi-station casting steel parts grinding device and grinding method. Background Technology

[0002] Cast steel parts are parts made of cast steel. They have similar properties to cast iron, but are stronger. During the production and processing of cast steel parts, surface burrs are usually removed by grinding.

[0003] For example, patent number CN220427761U discloses a multi-station dual-axis grinding machine for steel sheets. By having a rotating mechanism, when it is necessary to grind the steel sheet, the steel sheet can be transported to the grinding area through the rotating mechanism, and then a piece can be placed on the processing table to be processed, thereby realizing the grinding work. At the same time as grinding, the processed parts can be disassembled and replaced. The structure is simple, the operation is convenient, and it has strong practicality. By having a clamping component, when it is necessary to clamp steel sheets of different sizes, it can be quickly clamped by the clamping component, and the clamping effect is good. For example, patent number CN217143474U discloses a multi-station casting steel grinding device. Through the cooperation of a rotating disc, clamping part, foot pedal, and insertion part, the device allows for the removal of a pre-ground casting steel part on the right side during the grinding of one part, and then fixing another casting steel part to be ground onto a clamping part on the right side. This cyclical operation enables more efficient grinding of casting steel parts. The device simplifies the entire operation by allowing one casting steel part to be ground while another is being fixed, significantly improving grinding efficiency. Furthermore, the ratchet-shaped groove and pawl cooperation ensure that when the drive unit moves the drive rack backward, the drive rack drives the gear to rotate counterclockwise, causing the rotating cylinder to pass through the hexagonal plate belt. The three pawls rotate counterclockwise, as viewed from above, causing their heads to slide sequentially through the ratchet-shaped grooves. This prevents the rotating disk from rotating counterclockwise, thus preventing the rotating shaft from driving the rotating disk to rotate counterclockwise. This significantly improves the reliability of the grinding device during use. Through the cooperation of the foot pedal and the insertion part, when it is necessary to rotate the rotating disk 90 degrees clockwise, simply pull the lever forward manually and then step on the foot pedal. This allows the unidirectional rotating disk to drive the rotating shaft and the rotating disk to rotate 90 degrees clockwise, improving the convenience of switching between casting steel workstations. Furthermore, because the number of teeth on the drive rack is one-quarter of the number of teeth on the gear, the clockwise rotation of the rotating disk is more precise.

[0004] However, in the existing multi-station grinding equipment for cast steel parts, although some equipment has achieved a certain degree of continuous operation through rotating worktables or clamping switching structures, there are still significant efficiency bottlenecks in the actual processing process: when different surfaces (such as sides, bevels, concave surfaces or non-orthogonal edges) of the same cast steel part need to be ground, the fixed rotation angle, limited positioning gears or lack of flexible angle adjustment capabilities of the equipment often make it impossible to complete multi-face continuous processing without disassembling the workpiece. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-station grinding device and method for cast steel parts. It solves the problem that although some existing multi-station grinding devices for cast steel parts have achieved a certain degree of continuous operation through rotating worktables or clamping switching structures, there are still significant efficiency bottlenecks in the actual processing: when different surfaces (such as sides, bevels, concave surfaces, or non-orthogonal edges) of the same cast steel part need to be ground, the fixed rotation angle, limited positioning range, or lack of flexible angle adjustment capability of the equipment often prevent the completion of multi-face continuous processing without disassembling the workpiece.

[0006] The technical solution of this invention is as follows: a multi-station casting steel parts grinding device and grinding method, comprising a support base, a rotating worktable rotatably connected to the center of the top surface of the support base, connecting bases provided at all four ends of the top surface of the rotating worktable, a sensor base A fixedly connected to the front of the connecting base at the top of the rotating worktable, a control panel fixedly connected to the rear of the rotating worktable at the top of the support base, a grinding mechanism fixedly connected to the front of the control panel, and a sensor base B fixedly connected to the bottom of the grinding mechanism. When the rotating worktable drives the connecting base to rotate to the grinding machine... When directly below the structure, sensor base A and sensor base B are perpendicularly aligned. A rotating frame is rotatably connected to the inner wall of the connecting base. Rotating shafts are located at both ends of the rotating frame on the inner side of the connecting base. A servo motor B is fixedly connected to one end of the rotating shaft on the outer end face of the connecting base. Servo motor B drives the rotating frame to rotate inside the connecting base. A transmission rod for sensor base C is fixedly connected to the other end of the rotating shaft on the outer side of the connecting base. Sensor base D is fixedly connected above sensor base C at the top of the connecting base. Sensor base C and sensor base D are perpendicularly aligned. The top of sensor base D... A locking assembly is provided to fix the position of the rotating frame after it has rotated to a suitable angle. Both ends of the inner wall of the rotating frame have movable clamping blocks, and the center of the two clamping blocks is located on the outer end face of the rotating frame. A transmission assembly is provided to drive the two clamping blocks to move within the rotating frame. The locking assembly includes a pneumatic device consisting of a cylinder and a pneumatic rod. The pneumatic rod is located at the output end of the cylinder, and its bottom end is fixedly connected to a limiting seat A. Limiting seats B are movably connected to both ends of the inner wall of limiting seat A. One end of limiting seat B is located at... A limiting groove is provided on the outer side of the rotating shaft. When the cylinder and the air rod push the lower limiting seat A to move, the limiting seat A presses against the two limiting seats B on the inner wall and inserts into the inner side of the limiting groove. The transmission assembly includes a servo motor C. The output end of the servo motor C is fixedly connected to a transmission rod. One end of the transmission rod is rotatably connected to a lead screw A. Both ends of the lead screw A extend to the outer side of the two clamping blocks and are rotatably connected to the connecting base. The lead screw A is threadedly connected to the two clamping blocks. When the servo motor C drives the transmission rod to rotate, the transmission rod and the lead screw A drive the two clamping blocks to move on the inner wall of the connecting base.

[0007] Preferably, the grinding mechanism includes a positioning frame, a sensing seat B located at the bottom of the positioning frame, a cylinder fixedly connected to the top of the positioning frame, a pneumatic rod fixedly connected to the output end of the cylinder, a grinding seat located on the inner wall of the positioning frame at the bottom of the pneumatic rod, and lifting grooves opened at both ends of the grinding seat on the inner wall of the positioning frame, with both ends of the grinding seat extending to the inner side of the lifting grooves. When the cylinder, in conjunction with the pneumatic rod, pushes the grinding seat to move, the grinding seat is displaced within the lifting grooves.

[0008] Preferably, the grinding base includes a grinding motor, and the output end of the grinding motor is fixedly connected to a grinding disc. When the connecting base is located at the bottom of the grinding mechanism, the cylinder and the air rod push the grinding base to the top surface of the connecting base, and the workpiece is ground by the grinding motor and the grinding disc.

[0009] Preferably, a servo motor A is fixedly connected to the bottom end of the support base below the rotary table. The rotary table is located at the output end of the servo motor A, and the servo motor A can drive the rotary table to rotate on the top surface of the support base.

[0010] Preferably, a control panel is fixedly connected to one side of the grinding mechanism. The control panel is electrically connected to the induction seat A, the grinding mechanism, the servo motor A, the induction seat B, the induction seat C, the induction seat D, the servo motor B, and the servo motor C. When the device is powered on, the induction seat A, the grinding mechanism, the servo motor A, the induction seat B, the induction seat C, the induction seat D, the servo motor B, and the servo motor C can be controlled through the control panel.

[0011] Preferably, four connecting bases are provided, with the number of induction bases A being the same as the number of connecting bases, and each induction base A corresponding to one of the connecting bases. Infrared sensors are provided on the inner side of induction bases A and C, and infrared receivers are provided on the inner side of induction bases B and D. When the rotating worktable drives any one of the connecting bases to rotate to the bottom of the grinding mechanism, the infrared sensor inside induction base A transmits a signal to the infrared receiver inside induction base B. When the rotating frame rotates to any angle, the infrared sensor inside induction base C transmits a signal to the infrared receiver inside induction base D.

[0012] Preferably, a movable groove is provided below the limiting seat B on the inner side of the connecting base. The bottom end of the limiting seat B extends to the inner side of the movable groove. A return spring is fixedly connected to the inner wall of the movable groove. The limiting seat B is movably connected to the connecting base through the return spring. One end of the limiting seat B and the opposite surfaces of the limiting seat A and the limiting seat B are all inclined surfaces. The limiting seat B fits against the limiting seat A through the inclined surfaces. When the limiting seat A moves up and down inside the connecting base, the limiting seat A, in conjunction with the inclined surfaces, presses against the two limiting seats B.

[0013] Preferably, one end of the limiting seat B is provided with an insert block, one end of which is consistent with the shape of the limiting groove. There are six limiting grooves, which are evenly arranged on the outside of the rotating shaft. When the two limiting seats B perform a pressing movement, one end of the insert block is inserted into the inside of the limiting groove.

[0014] Preferably, a bevel gear is provided at one end of the transmission rod and at the center of the lead screw A. The transmission rod meshes with the lead screw A through the bevel gear. When the transmission rod rotates, the transmission rod, in conjunction with the bevel gear, drives the lead screw A to rotate. The lead screw A is a double-threaded lead screw, and the threads at both ends of the lead screw A are symmetrical. When the lead screw A rotates, the lead screw A drives the two clamping blocks to move relative to each other inside the connecting base. Guide grooves are provided on both sides of the clamping blocks on the inner wall of the connecting base, and the two ends of the clamping blocks extend to the inner side of the guide grooves. When the two clamping blocks move relative to each other, the two clamping blocks are displaced inside the guide grooves.

[0015] A grinding method for a multi-station cast steel parts grinding device is described below: S1: Connect the power supply and start the device. The operator places the cast steel part to be ground between the two clamping blocks on the inner side of any connecting base. Start the servo motor C, and its output end drives the transmission rod to rotate. The transmission rod drives the lead screw A to rotate synchronously through the meshing of bevel gears. Since the lead screw A has a double-thread structure and the threads at both ends are symmetrical, the two clamping blocks move towards each other along the direction of the lead screw under the constraint of the guide groove, thereby clamping the cast steel part. The anti-slip pad or elastic buffer layer on the inner side of the clamping block contacts the workpiece, which not only prevents surface damage but also improves clamping stability.

[0016] S2: Start the servo motor B, whose output end drives the rotating shaft to rotate, thereby driving the rotating frame to rotate on the inner wall of the connecting base; the rotating frame drives the clamped cast steel part to rotate to the preset grinding angle, such as grinding a specific surface or edge; when the rotation is in place, the sensing seat C rotates synchronously with the rotating shaft, so that its internal infrared sensor is vertically aligned with the infrared receiver in the sensing seat D fixed at the top of the connecting base; after the control panel receives the alignment signal, it determines that the rotating frame has reached the target angle.

[0017] S3: The control panel issues a command to activate the pneumatic device in the locking assembly; the cylinder pushes the air rod downward, causing the limit seat A to descend. The inclined surface of the limit seat A presses against the inclined surfaces of the limit seats B on both sides, overcoming the spring force of the return spring, causing the limit seat B to move horizontally inward. The insert block at the end of the limit seat B inserts into the limit groove at the corresponding position on the outer circumference of the rotating shaft. The six limit grooves provide multiple angle positioning. The insert block and the limit groove cooperate to achieve rigid locking of the rotating frame, preventing deflection during the grinding process.

[0018] S4: The control panel starts servo motor A, which drives the rotary table to rotate around the center of the support base. The rotary table drives the four connecting bases to rotate in sequence. When the connecting base with the workpiece rotates to directly below the grinding mechanism, the induction seat A at its front end is vertically aligned with the induction seat B at the bottom of the grinding mechanism. The infrared sensor in induction seat A emits a signal, which is received by the infrared receiver in induction seat B. The control panel confirms that the work position is in place and avoids interference between adjacent work positions through the signal shielding structure to ensure accurate identification.

[0019] S5: The control panel controls the start of the grinding mechanism. The cylinder at the top of the positioning frame pushes the air rod downward, causing the grinding seat to descend vertically along the lifting groove. The grinding motor on the grinding seat starts, driving the grinding disc to rotate at high speed. The grinding disc contacts the surface of the cast steel part for precise grinding. At the same time, the dust hood surrounds the working area of ​​the grinding disc and is connected to an external dust removal system to suck up the metal dust generated during grinding in real time, reducing environmental pollution and equipment wear.

[0020] S6: After the preset grinding time is completed, the control panel controls the grinding motor to stop, the cylinder to retract, and the grinding seat to rise and reset; the pneumatic device of the locking component releases pressure, and the reset spring pushes the limit seat B out of the limit groove, releasing the lock on the rotating frame; the servo motor A continues to drive the rotating worktable to rotate °, sending the connecting base of the next clamped workpiece into the grinding station; the original station can be unloaded or reloaded, realizing four-station cyclic continuous operation and improving production efficiency.

[0021] The beneficial effects of this invention are: This multi-station cast steel grinding device, with its four-station rotary table design, enables simultaneous clamping, angle adjustment, grinding, and unloading, significantly improving production efficiency. It is suitable for batch grinding of cast steel parts. The rotating frame is driven by a servo motor B, which can precisely adjust the workpiece grinding angle. Combined with six limit slots and a plug-in locking structure, it achieves multi-level rigid positioning to meet the grinding needs of different surfaces or edges. By using infrared sensors and infrared receivers, it achieves automatic recognition of station and angle positioning, improving grinding accuracy. Attached Figure Description

[0022] Figure 1 The diagram shown is a three-dimensional structural illustration of the present invention. Figure 1 ; Figure 2 The diagram shown is a three-dimensional structural illustration of the present invention. Figure 2 ; Figure 3 The diagram shown illustrates the structure of the connecting base of the present invention. Figure 1 ; Figure 4 The diagram shown illustrates the structure of the connecting base of the present invention. Figure 2 ; Figure 5 The diagram shown is a structural schematic of the shaft pair of the present invention; Figure 6 The diagram shown is a schematic representation of the structure of the rotating frame of the present invention.

[0023] Explanation of reference numerals in the attached drawings: 1. Support base; 2. Rotary worktable; 3. Connecting base; 4. Sensor seat A; 5. Control panel; 6. Grinding mechanism; 7. Servo motor A; 8. Sensor seat B; 9. Sensor seat C; 10. Sensor seat D; 11. Servo motor B; 12. Rotating frame; 13. Clamping block; 14. Servo motor C; 15. Pneumatic device; 16. Limit seat A; 17. Limit seat B; 18. Return spring; 19. Rotating shaft; 20. Limit groove; 21. Transmission rod; 22. Lead screw A. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-6This invention provides an embodiment: a multi-station casting steel grinding device and its grinding method, including a support base 1, a rotating worktable 2 rotatably connected to the center of the top surface of the support base 1, connecting bases 3 at all four ends of the top surface of the rotating worktable 2, a sensor seat A4 fixedly connected to the front of the connecting base 3 at the top of the rotating worktable 2, a control panel 5 fixedly connected to the rear of the rotating worktable 2 at the top of the support base 1, a grinding mechanism 6 fixedly connected to the front of the control panel 5, and a sensor seat B8 fixedly connected to the bottom of the grinding mechanism 6. When the rotating worktable 2 drives the connecting base 3 to rotate directly below the grinding mechanism 6, the sensor seat A4... 4. A rotating frame 12 is rotatably connected to the inner wall of the connecting base 3, perpendicular to and overlapping with the sensing base B8. Two ends of the rotating frame 12 are provided with rotating shafts 19 located inside the connecting base 3. One end of the rotating shaft 19 is fixedly connected to a servo motor B11 located on the outer end face of the connecting base 3. The servo motor B11 drives the rotating frame 12 to rotate inside the connecting base 3. The other end of the rotating shaft 19 is fixedly connected to a transmission rod 21 of the sensing base C9 located on the outer side of the connecting base 3. A sensing base D10 is fixedly connected above the sensing base C9 at the top of the connecting base 3. The sensing base C9 and sensing base D10 are perpendicularly overlapped. A locking component is provided at the top of the sensing base D10. The locking assembly is used to fix the position of the rotating frame 12 after it rotates to a suitable angle. Both ends of the inner wall of the rotating frame 12 have movable clamping blocks 13. A transmission assembly is provided at the center of the two clamping blocks 13 on the outer end face of the rotating frame 12. The transmission assembly is used to drive the two clamping blocks 13 to move within the rotating frame 12. The locking assembly includes a pneumatic device 15, which consists of a cylinder and a rod. The rod is located at the output end of the cylinder, and the bottom end of the rod is fixedly connected to a limiting seat A16. Limiting seats B17 are movably connected to both ends of the inner wall of the limiting seat A16. One end of the limiting seat B17 is located on the outer side of the rotating shaft 19. The limiting groove 20 is used when the cylinder and the air rod push the lower limiting seat A16 to move. The limiting seat A16 presses the two limiting seats B17 on the inner wall of the limiting groove 20 and inserts them into the inner side of the limiting groove 20. The transmission assembly includes a servo motor C14. The output end of the servo motor C14 is fixedly connected to a transmission rod 21. One end of the transmission rod 21 is rotatably connected to a lead screw A22. Both ends of the lead screw A22 extend to the outside of the two clamping blocks 13 and are rotatably connected to the connecting base 3. The lead screw A22 is threadedly connected to the two clamping blocks 13. When the servo motor C14 drives the transmission rod 21 to rotate, the transmission rod 21 and the lead screw A22 drive the two clamping blocks 13 to move on the inner wall of the connecting base 3.

[0026] Please see Figures 1-2In this embodiment, the grinding mechanism 6 includes a positioning frame, a sensing seat B8 located at the bottom of the positioning frame, a cylinder fixedly connected to the top of the positioning frame, a pneumatic rod fixedly connected to the output end of the cylinder, a grinding seat located on the inner wall of the positioning frame at the bottom end of the pneumatic rod, and lifting grooves opened at both ends of the grinding seat on the inner wall of the positioning frame, extending to the inner side of the lifting grooves. When the cylinder and the pneumatic rod push the grinding seat to move, the grinding seat moves within the lifting grooves. The grinding seat includes a grinding motor, and a grinding disc is fixedly connected to the output end of the grinding motor. When the connecting base 3 is located at the bottom of the grinding mechanism 6, the cylinder and the pneumatic rod push the grinding seat to the top surface of the connecting base 3, and the workpiece is ground by the grinding motor and the grinding disc. The grinding seat also includes a dust collection hood, which surrounds the grinding disc and is connected to an external dust removal system to collect dust during the grinding process, reducing environmental pollution and equipment wear.

[0027] Please see Figures 3-4 In this embodiment, a servo motor A7 is fixedly connected to the bottom of the support base 1 below the rotary table 2. The rotary table 2 is located at the output end of the servo motor A7, and can be driven by the servo motor A7 to rotate on the top surface of the support base 1. A control panel 5 is fixedly connected to one side of the grinding mechanism 6. The control panel 5 is electrically connected to the sensor base A4, the grinding mechanism 6, the servo motor A7, the sensor base B8, the sensor base C9, the sensor base D10, the servo motor B11, and the servo motor C14. When the device is powered on, the control panel 5 can be used to control the sensor base A4, the grinding mechanism 6, the servo motor A7, the sensor base B8, the sensor base C9, the sensor base D10, the servo motor B11, and the servo motor C14 respectively. There are four induction seats A4 and C9, with the number of induction seats A4 and C9 corresponding one-to-one. Infrared sensors are installed on the inner side of induction seats A4 and C9, and infrared receivers are installed on the inner side of induction seats B8 and D10. When the rotating worktable 2 drives any one of the connecting bases 3 to the bottom of the grinding mechanism 6, the infrared sensor inside induction seat A4 transmits the signal to the infrared receiver inside induction seat B8. When the rotating frame 12 rotates to any angle, the infrared sensor inside induction seat C9 transmits the signal to the infrared receiver inside induction seat D10. A signal shielding structure is provided between the infrared sensors and infrared receivers to avoid interference between the induction signals of adjacent workstations and ensure the accuracy of the position identification of each connecting base 3.

[0028] Please see Figures 5-6In this embodiment, a movable groove is provided below the limiting seat B17 on the inner side of the connecting base 3. The bottom end of the limiting seat B17 extends into the inner side of the movable groove. A return spring 18 is fixedly connected to the inner wall of the movable groove. The limiting seat B17 is movably connected to the connecting base 3 through the return spring 18. One end of the limiting seat B17 and the opposite surfaces of the limiting seat A16 and the limiting seat B17 are both inclined surfaces. The limiting seat B17 fits against the limiting seat A16 through the inclined surfaces. When the limiting seat A16 moves up and down inside the connecting base 3, the limiting seat A16, in conjunction with the inclined surfaces, presses against the two limiting seats B17. One end of the limiting seat B17 is provided with an insert block. One end of the insert block is consistent with the shape of the limiting groove 20. There are six limiting grooves 20, which are evenly arranged on the outer side of the rotating shaft 19. When the two limiting seats B17 move in a pressing motion, one end of the insert block is inserted into the groove. Inside the limiting groove 20, bevel gears are provided at one end of the transmission rod 21 and at the center of the lead screw A22. The transmission rod 21 meshes with the lead screw A22 through the bevel gears. When the transmission rod 21 rotates, the transmission rod 21, in conjunction with the bevel gears, drives the lead screw A22 to rotate. The lead screw A22 is a double-threaded lead screw, and the threads at both ends of the lead screw A22 are symmetrical. When the lead screw A22 rotates, it drives the two clamping blocks 13 to move relative to each other inside the connecting base 3. Guide grooves are provided on both sides of the clamping blocks 13 on the inner wall of the connecting base 3, and the two ends of the clamping blocks 13 extend to the inner side of the guide grooves. When the two clamping blocks 13 move relative to each other, they move within the guide grooves. Anti-slip pads or elastic buffer layers are provided on the inner side of the clamping blocks 13 to prevent damage to the workpiece surface and improve clamping stability when clamping cast steel parts.

[0029] During operation, the power is turned on, the device is started, and the operator places the cast steel part to be ground between the two clamping blocks 13 on the inner side of any connecting base 3. The servo motor C14 is started, and its output end drives the transmission rod 21 to rotate. The transmission rod 21 drives the lead screw A22 to rotate synchronously through bevel gear meshing. Since the lead screw A22 has a double-threaded structure and the threads at both ends are symmetrical, the two clamping blocks 13 move towards each other along the direction of the lead screw under the constraint of the guide groove, thereby clamping the cast steel part. The anti-slip pad or elastic buffer layer on the inner side of the clamping block 13 contacts the workpiece, which not only prevents surface damage but also improves clamping stability. The servo motor B11 is started, and its output end drives the transmission rod 21 to rotate. The rotating shaft 19 rotates, thereby driving the rotating frame 12 to rotate on the inner wall of the connecting base 3; the rotating frame 12 drives the clamped cast steel part to rotate to the preset grinding angle. If a specific surface or edge needs to be ground, when the rotation is in place, the sensing seat C9 rotates synchronously with the rotating shaft 19, so that its internal infrared sensor is vertically aligned with the infrared receiver in the sensing seat D10 fixed at the top of the connecting base 3; after receiving the alignment signal, the control panel 5 determines that the rotating frame 12 has reached the target angle, and the control panel 5 issues a command to activate the pneumatic device 15 in the locking assembly. The cylinder pushes the air rod downward, causing the limit seat A16 to descend. The inclined surface of the limit seat A16 presses against both sides. The inclined surface of the limiting seat B17 overcomes the elastic force of the return spring 18, causing the limiting seat B17 to move horizontally inward. The insert at the end of the limiting seat B17 is inserted into the limiting groove 20 at the corresponding position on the outer periphery of the rotating shaft 19. The six limiting grooves 20 provide multiple angle positioning. The insert and the limiting groove 20 cooperate to achieve rigid locking of the rotating frame 12, preventing deflection during the grinding process. The control panel 5 starts the servo motor A7, driving the rotating worktable 2 to rotate around the center of the support base 1. The rotating worktable 2 drives the four connecting bases 3 to rotate in sequence. When the connecting base 3 with the workpiece rotates to directly below the grinding mechanism 6, the sensing seat A4 at its front end and the sensing seat A4 at the bottom of the grinding mechanism 6 are connected. When the workstation B8 is vertically aligned, the infrared sensor in the sensing base A4 emits a signal, which is received by the infrared receiver in the sensing base B8. The control panel 5 confirms that the workstation is in place and avoids interference from adjacent workstations through the signal shielding structure to ensure accurate identification. The control panel 5 controls the grinding mechanism 6 to start. The cylinder on the top of the positioning frame pushes the air rod downward, which drives the grinding base to descend vertically along the lifting groove. The grinding motor on the grinding base starts and drives the grinding disc to rotate at high speed. The grinding disc contacts the surface of the cast steel part for precise grinding. At the same time, the dust collection hood surrounds the working area of ​​the grinding disc and is connected to the external dust removal system to suck up the metal dust generated by grinding in real time, reducing environmental pollution and equipment wear.After the preset grinding time is completed, the control panel 5 controls the grinding motor to stop, the cylinder to retract, the grinding seat to rise and reset, the pneumatic device 15 of the locking component to release pressure, the reset spring 18 pushes the limit seat B17 out of the limit groove 20, releasing the lock on the rotating frame 12, the servo motor A7 continues to drive the rotating worktable 2 to rotate 90°, and sends the connecting base 3 of the next clamped workpiece into the grinding station. The original station can be unloaded or reloaded, realizing four-station cyclic continuous operation and improving production efficiency. Compared to the prior art document CN220427761U, a multi-station dual-axis steel film grinding machine is provided. By having a rotating mechanism, when it is necessary to grind the steel film, the steel film can be transported to the grinding area through the rotating mechanism, and then a piece can be placed on the processing table to be processed, thereby realizing the grinding work. At the same time as grinding, the processed parts can be disassembled and replaced. The structure is simple, the operation is convenient, and it has strong practicality. By having a clamping component, when it is necessary to clamp steel films of different sizes, it can be quickly clamped by the clamping component, and the clamping effect is good. CN217143474U describes a multi-station casting steel grinding device. Through the cooperation of a rotating disc, clamping part, foot pedal, and insertion part, it allows for the removal of a pre-ground casting steel part on the right side during the grinding of one part, and then fixing another casting steel part to be ground onto a clamping part on the right side. This cyclical operation enables more efficient grinding of casting steel parts. The device simplifies the entire operation by allowing one casting steel part to be ground before another is fixed, significantly improving grinding efficiency. The ratchet-shaped groove and pawl cooperation ensure that when the drive unit moves the drive rack backward, the drive rack drives the gear to rotate counterclockwise, causing the rotating cylinder to drive three... When the pawl rotates counterclockwise, viewed from above, the three pawl heads slide sequentially through the ratchet-shaped groove, preventing the rotating disk from rotating counterclockwise. This, in turn, prevents the rotating shaft from driving the rotating disk to rotate counterclockwise, greatly improving the reliability of the grinding device. Through the cooperation of the foot pedal and the plug, when it is necessary to rotate the rotating disk 90 degrees clockwise, simply pull the lever forward manually and then step down on the foot pedal. This allows the unidirectional rotating disk to drive the rotating shaft and the rotating disk to rotate 90 degrees clockwise, improving the convenience of switching between casting steel workstations. Furthermore, because the number of teeth on the drive rack is one-quarter of the number of teeth on the gear, the rotating disk rotates more precisely clockwise. This application utilizes a four-station rotary table design to simultaneously perform four processes: clamping, angle adjustment, grinding, and unloading, significantly improving production efficiency. It is suitable for batch grinding of cast steel parts. The rotary frame is driven by a servo motor B, which can precisely adjust the workpiece grinding angle. Combined with six limit slots and a plug-in locking structure, it achieves multi-level rigid positioning to meet the grinding needs of different surfaces or edges. By using infrared sensors and infrared receivers, it achieves automatic recognition of station and angle positioning, improving grinding accuracy.

[0030] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-station casting steel grinding device, comprising a support base (1), characterized in that: A rotating worktable (2) is rotatably connected to the center of the top surface of the support base (1). A connecting base (3) is provided at each of the four ends of the top surface of the rotating worktable (2). A sensor seat A (4) is fixedly connected to the front of the connecting base (3) at the top of the rotating worktable (2). A control panel (5) is fixedly connected to the rear of the rotating worktable (2) at the top of the support base (1). A grinding mechanism (6) is fixedly connected to the front end of the control panel (5). A sensor seat B (8) is fixedly connected to the bottom end of the grinding mechanism (6). When the rotating worktable (2) drives the connecting base (3) to rotate directly below the grinding mechanism (6), the sensor seat A (4) and the sensor seat B (8) are perpendicularly aligned. A rotating frame (12) is rotatably connected to the inner wall of the connecting base (3). A rotating shaft (19) is provided at both ends of the rotating frame (12) on the inner side of the connecting base (3). One end of the rotating shaft (19) is located on the connecting base (3). A servo motor B (11) is fixedly connected to the outer end face. The servo motor B (11) is used to drive the rotating frame (12) to rotate inside the connecting base (3). The other end of the rotating shaft (19) is fixedly connected to the transmission rod (21) of the sensing seat C (9) on the outside of the connecting base (3). The sensing seat C (9) is fixedly connected to the top of the connecting base (3) at the top of the sensing seat C (9). The sensing seat C (9) and the sensing seat D (10) are perpendicularly overlapped. The top of the sensing seat D (10) is provided with a locking component. The locking component is used to fix the position of the rotating frame (12) after the rotating frame (12) rotates to a suitable angle. Both ends of the inner wall of the rotating frame (12) are movable clamping blocks (13). The center position of the two clamping blocks (13) is located on the outer end face of the rotating frame (12) and a transmission component is provided. The transmission component is used to drive the two clamping blocks (13) to move inside the rotating frame (12). The locking assembly includes a pneumatic device (15), which consists of a cylinder and a rod. The rod is located at the output end of the cylinder, and the bottom end of the rod is fixedly connected to a limiting seat A (16). The two ends of the inner wall of the limiting seat A (16) are movably connected to limiting seats B (17). One end of the limiting seat B (17) is located on the outside of the rotating shaft (19) and a limiting groove (20) is opened. When the cylinder cooperates with the rod to push the lower limiting seat A (16) to move, the limiting seat A (16) squeezes the two sides of the inner wall of the limiting seat B (17) and inserts them into the inner side of the limiting groove (20). The transmission assembly includes a servo motor C (14), the output end of which is fixedly connected to a transmission rod (21), one end of which is rotatably connected to a lead screw A (22), both ends of which extend to the outside of two clamping blocks (13) and are rotatably connected to the connecting base (3). The lead screw A (22) is threadedly connected to the two clamping blocks (13). When the servo motor C (14) drives the transmission rod (21) to rotate, the transmission rod (21) cooperates with the lead screw A (22) to drive the two clamping blocks (13) to move on the inner wall of the connecting base (3).

2. The multi-station casting steel grinding device according to claim 1, characterized in that: The grinding mechanism (6) includes a positioning frame, a sensing seat B (8) located at the bottom of the positioning frame, a cylinder fixedly connected to the top of the positioning frame, a rod fixedly connected to the output end of the cylinder, a grinding seat located on the inner wall of the positioning frame at the bottom of the rod, and lifting grooves opened at both ends of the grinding seat on the inner wall of the positioning frame. The two ends of the grinding seat extend to the inner side of the lifting groove. When the cylinder and the rod push the grinding seat to move, the grinding seat moves inside the lifting groove.

3. The multi-station casting steel grinding device according to claim 2, characterized in that: The grinding base includes a grinding motor, and the output end of the grinding motor is fixedly connected to a grinding disc. When the connecting base (3) is located at the bottom of the grinding mechanism (6), the cylinder and the air rod push the grinding base to the top surface of the connecting base (3), and the workpiece is ground by the grinding motor and the grinding disc.

4. The multi-station casting steel grinding device according to claim 1, characterized in that: A servo motor A (7) is fixedly connected to the bottom of the support base (1) below the rotary table (2). The rotary table (2) is located at the output end of the servo motor A (7). The rotary table (2) can be driven to rotate on the top surface of the support base (1) by the servo motor A (7).

5. The multi-station casting steel grinding device according to claim 1, characterized in that: A control panel (5) is fixedly connected to one side of the grinding mechanism (6). The control panel (5) is electrically connected to the sensor base A (4), the grinding mechanism (6), the servo motor A (7), the sensor base B (8), the sensor base C (9), the sensor base D (10), the servo motor B (11), and the servo motor C (14). When the device is powered on, the sensor base A (4), the grinding mechanism (6), the servo motor A (7), the sensor base B (8), the sensor base C (9), the sensor base D (10), the servo motor B (11), and the servo motor C (14) can be controlled through the control panel (5).

6. The multi-station casting steel grinding device according to claim 1, characterized in that: There are four connecting bases (3). The number of sensing bases A (4) is the same as that of connecting bases (3). The sensing bases A4 and connecting bases (3) correspond one-to-one. The inner side of sensing bases A (4) and C (9) is equipped with infrared sensors. The inner side of sensing bases B (8) and D (10) is equipped with infrared receivers. When the rotating worktable (2) drives any one of the connecting bases (3) to rotate to the bottom of the grinding mechanism (6), the infrared sensor inside sensing base A (4) transmits the signal to the infrared receiver inside sensing base B (8). When the rotating frame (12) rotates to any angle, the infrared sensor inside sensing base C (9) transmits the signal to the infrared receiver inside sensing base D (10).

7. The multi-station casting steel grinding device according to claim 1, characterized in that: The lower part of the limiting seat B (17) is provided with a movable groove on the inner side of the connecting base (3). The bottom end of the limiting seat B (17) extends to the inner side of the movable groove. The inner wall of the movable groove is fixedly connected with a return spring (18). The limiting seat B (17) is movably connected to the connecting base (3) through the return spring (18). One end of the limiting seat B (17) and the opposite surfaces of the limiting seat A (16) and the limiting seat B (17) are all inclined surfaces. The limiting seat B (17) fits against the limiting seat A (16) through the inclined surface. When the limiting seat A (16) moves up and down on the inner side of the connecting base (3), the limiting seat A (16) and the inclined surface press against the two limiting seats B (17).

8. The multi-station casting steel grinding device according to claim 1, characterized in that: One end of the limiting seat B (17) is provided with an insert block. One end of the insert block is consistent with the shape of the limiting groove (20). There are six limiting grooves (20). The six limiting grooves (20) are evenly arranged on the outside of the rotating shaft (19). When the two limiting seats B (17) perform a squeezing motion, one end of the insert block is inserted into the inside of the limiting groove (20).

9. The multi-station casting steel grinding device according to claim 1, characterized in that: A bevel gear is provided at one end of the transmission rod (21) and at the center of the lead screw A (22). The transmission rod (21) meshes with the lead screw A (22) through the bevel gear. When the transmission rod (21) rotates, the transmission rod (21) and the bevel gear drive the lead screw A (22) to rotate. The lead screw A (22) is a double-threaded lead screw. The threads at both ends of the lead screw A (22) are symmetrical. When the lead screw A (22) rotates, the lead screw A (22) drives the two clamping blocks (13) to move relative to each other inside the connecting base (3). The two sides of the clamping blocks (13) are provided with guide grooves on the inner wall of the connecting base (3). The two ends of the clamping blocks (13) extend to the inner side of the guide groove. When the two clamping blocks (13) move relative to each other, the two clamping blocks (13) move within the guide groove.

10. A grinding method for a multi-station cast steel parts grinding device, characterized in that: The multi-station steel casting grinding device according to any one of claims 1-9 operates as follows: S1: Connect the power supply and start the device. The operator places the cast steel part to be ground between the two clamping blocks (13) on the inner side of any one of the connecting bases (3); start the servo motor C (14), and its output end drives the transmission rod (21) to rotate; the transmission rod (21) drives the lead screw A (22) to rotate synchronously through the meshing of bevel gears; since the lead screw A (22) has a double-thread structure and the threads at both ends are symmetrical, the two clamping blocks (13) move towards each other along the direction of the lead screw under the constraint of the guide groove, thereby clamping the cast steel part; the anti-slip pad or elastic buffer layer on the inner side of the clamping block (13) contacts the workpiece, which not only prevents surface damage, but also improves the clamping stability; S2: Start the servo motor B (11), whose output end drives the rotating shaft (19) to rotate, thereby driving the rotating frame (12) to rotate on the inner wall of the connecting base (3); the rotating frame (12) drives the clamped cast steel part to rotate to the preset grinding angle if a specific surface or edge needs to be ground; when the rotation is in place, the sensing seat C (9) rotates synchronously with the rotating shaft (19), so that its internal infrared sensor is vertically aligned with the infrared receiver in the sensing seat D (10) fixed at the top of the connecting base (3); after the control panel (5) receives the alignment signal, it determines that the rotating frame (12) has reached the target angle; S3: The control panel (5) issues a command to start the pneumatic device (15) in the locking assembly; the cylinder pushes the air rod downward, causing the limit seat A (16) to descend. The inclined surface of the limit seat A (16) presses against the inclined surfaces of the limit seats B (17) on both sides, overcoming the elastic force of the return spring (18), so that the limit seat B (17) moves inward horizontally. The insert at the end of the limit seat B (17) is inserted into the limit groove (20) at the corresponding position on the outer periphery of the rotating shaft rod (19). The six limit grooves (20) provide multiple angle positioning. The insert and the limit groove (20) cooperate to achieve rigid locking of the rotating frame (12) to prevent deflection during the grinding process. S4: The control panel (5) starts the servo motor A (7) and drives the rotary table (2) to rotate around the center of the support base 1. The rotary table (2) drives the four connecting bases (3) to rotate in sequence. When the connecting base (3) with the workpiece rotates to the bottom of the grinding mechanism (6), the front end of the sensing seat A (4) is perpendicularly aligned with the bottom of the grinding mechanism (6) and the sensing seat B (8). The infrared sensor in the sensing seat A (4) emits a signal, which is received by the infrared receiver in the sensing seat B (8). The control panel (5) confirms that the work position is in place and avoids interference between adjacent work positions through the signal shielding structure to ensure accurate identification. S5: Control panel (5) controls the grinding mechanism (6) to start. The cylinder at the top of the positioning frame pushes the air rod down, causing the grinding seat to descend vertically along the lifting groove. The grinding motor on the grinding seat starts, driving the grinding disc to rotate at high speed. The grinding disc contacts the surface of the cast steel part for precise grinding. At the same time, the dust hood surrounds the working area of ​​the grinding disc and connects to the external dust removal system to suck up the metal dust generated by grinding in real time, reducing environmental pollution and equipment wear. S6: After the preset grinding time is completed, the control panel (5) controls the grinding motor to stop, the cylinder to retract, and the grinding seat to rise and reset; the pneumatic device (15) of the locking component is depressurized, and the reset spring (18) pushes the limit seat B (17) out of the limit groove (20) to release the lock on the rotating frame (12); the servo motor A (7) continues to drive the rotating worktable (2) to rotate 90°, and sends the connecting base (3) of the next clamped workpiece into the grinding station; the original station can be unloaded or reloaded to realize the four-station cyclic continuous operation and improve production efficiency.

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