An automatic polishing device for motor rotors

Abstract

This utility model discloses an automatic polishing device for motor rotors, including a frame (1). The frame (1) has a polishing station in the middle, and a pair of support blocks (2) are provided at the polishing station. The support blocks (2) are provided with limiting grooves, which are matched with the connecting rods on the motor rotor (3). A feeding slide (4) and a discharging slide (5) are provided on both sides of the polishing station. A feeding mechanism is provided in conjunction with the feeding slide (4), and a discharging mechanism is provided in conjunction with the discharging slide (5). A grinding mechanism is also provided on the frame (1) in conjunction with the polishing station. At the same time, a rotor drive mechanism is provided below the polishing station.

Description

Technical Field

[0001] This utility model relates to the field of automated processing, and in particular to an automatic polishing device for motor rotors. Background Technology

[0002] The motor rotor is an important component of the motor. It consists of a cylinder and slender rods at both ends of the cylinder. The outer wall of the cylinder needs to meet the surface precision requirements, so it needs to be polished before leaving the factory.

[0003] Due to the special shape of the motor rotor (its two slender rods have relatively large shaft diameters and relatively small grinding area), it is difficult, time-consuming, labor-intensive, and relatively inefficient to use traditional manual grinding and polishing methods. At the same time, there is no automated grinding and polishing device specifically designed for this special shape, so automated polishing operation cannot be achieved.

[0004] Therefore, a method or apparatus is needed to solve the above problems. Summary of the Invention

[0005] This invention addresses the aforementioned shortcomings of existing technologies by proposing a device with a simple structure, ingenious design, and reasonable layout, which enables automatic polishing of motor rotors while saving labor and improving work efficiency.

[0006] The technical solution of this utility model is: an automatic polishing device for motor rotors, comprising a frame 1, characterized in that: the middle part of the frame 1 is a polishing station, and a pair of support blocks 2 are provided at the polishing station. The support blocks 2 are provided with limiting grooves, which match the connecting rods on the motor rotor 3. A feeding slide 4 and a discharging slide 5 are respectively provided on both sides of the polishing station. A feeding mechanism is provided in conjunction with the feeding slide 4, and a discharging mechanism is provided in conjunction with the discharging slide 5. A grinding mechanism matching the polishing station is also provided on the frame 1, and a rotor drive mechanism is provided below the polishing station.

[0007] The feeding carriage 4 is inclined, with its end close to the support block 2 being relatively lower. A workpiece stop is provided at the bottom of the feeding carriage 4. The discharging carriage 5 is also inclined, with the inclination direction and angle being the same as that of the feeding carriage 4. A workpiece stop is also provided at the bottom of the discharging carriage 5.

[0008] The feeding mechanism includes X-axis cylinders 6 distributed along the X-axis direction. An X-axis support plate 7 is provided at the working end of each X-axis cylinder 6. A third Z-axis cylinder distributed along the Z-axis is provided on the X-axis support plate 7. A gripper cylinder 8 is connected to the working end of the third Z-axis cylinder. A gripper is provided at the working end of the gripper cylinder 8. The movement range of the gripper cylinder 8 covers the lowest point of the feeding carriage 4 and the polishing station.

[0009] The specific structure of the discharge mechanism is the same as that of the feeding mechanism. The movement range of the gripper cylinder 8 in the discharge mechanism covers the highest point of the discharge carriage 5 and the polishing station.

[0010] The grinding mechanism includes a Y-axis slide rail 9 fixedly supported on a frame 1. A Y-axis carriage 10 is slidably connected to the Y-axis slide rail 9. The Y-axis carriage 10 is driven by a Y-axis motor 11. The output end of the Y-axis motor 11 is connected to the Y-axis carriage 10 via a lead screw and nut transmission pair. A first Z-axis carriage 12 is movably connected inside the Y-axis carriage 10. The first Z-axis carriage 12 is driven by a first Z-axis cylinder 13 fixedly supported on the Y-axis carriage 10. A sanding belt support frame 14 is also provided on the first Z-axis carriage 12. The sanding belt support frame 14 has two symmetrically distributed support columns 15, and a grinding sanding belt 16 is wound on the support columns 15.

[0011] The rotor drive mechanism includes a Z-axis motor 17 fixedly mounted on the frame 1. The working end of the Z-axis motor 17 is connected to the second Z-axis slide 18 through a lead screw and nut transmission pair. The second Z-axis slide 18 is slidably connected to the Z-axis slide rail 19, which is mounted on the frame 1. A rotor drive motor 20 is mounted on the second Z-axis slide 18. The output end of the rotor drive motor 20 is connected to a drive wheel 21 rotatably supported on the second Z-axis slide 18 through a belt pulley transmission pair. The drive wheel 21 can contact the outer wall of the motor rotor 3.

[0012] The support block 2 is equipped with a sensor 22 that matches the limiting groove.

[0013] The Z-axis slide 12 is also equipped with a tensioning cylinder 23, and the working end of the tensioning cylinder 23 is provided with a tensioning column 24 that contacts the inner side of the grinding belt 16.

[0014] The outer wall of the drive wheel 21 is a rubber friction layer, and the surface of the rubber friction layer is also provided with textures to increase friction.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This type of automatic polishing device for motor rotors features a simple structure, ingenious design, and rational layout. Addressing the shortcomings of traditional manual polishing methods, it employs a unique structure. It utilizes a feeding robot for loading; once the workpiece is in place, the rotor drive mechanism below and the polishing mechanism above work synchronously to clamp the motor rotor. The motor rotor then begins to rotate under the action of the rotor drive mechanism, while the polishing mechanism polishes its outer wall during rotation. After polishing, the unloading robot removes the workpiece from the processing station. This automatic polishing device can quickly, conveniently, and with high quality polish the outer wall of large rotors, significantly improving production efficiency and reducing labor costs compared to traditional manual methods. Furthermore, its simple manufacturing process and low production cost make it highly advantageous and suitable for widespread application in this field, with a promising market prospect. Attached Figure Description

[0017] Figure 1 This is a top view of an embodiment of the present utility model.

[0018] Figure 2 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model (direction one).

[0019] Figure 3 yes Figure 2 A magnified view of a portion of the image (partial view 1).

[0020] Figure 4 yes Figure 2 Enlarged view of a portion of the image (partial view 2).

[0021] Figure 5 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model (direction two).

[0022] Figure 6 This is a three-dimensional structural schematic diagram (direction three) of an embodiment of this utility model. Detailed Implementation

[0023] The specific embodiments of this utility model will be described below with reference to the accompanying drawings. Figures 1 to 6 The diagram shows an automatic polishing device for a motor rotor, comprising a frame 1 as a base, with a polishing station in the middle. A pair of support blocks 2 are provided at the polishing station, each with a limiting groove that matches a connecting rod on a motor rotor 3. A feeding slide 4 and a discharging slide 5 are respectively provided on both sides of the polishing station. A feeding mechanism is provided in conjunction with the feeding slide 4, and a discharging mechanism is provided in conjunction with the discharging slide 5. A grinding mechanism matching the polishing station is also provided on the frame 1, and a rotor drive mechanism is located below the polishing station.

[0024] The feeding carriage 4 is inclined, with its end close to the support block 2 being relatively lower. A workpiece stop is provided at the bottom of the feeding carriage 4. The discharging carriage 5 is also inclined, with the inclination direction and angle being the same as that of the feeding carriage 4. A workpiece stop is also provided at the bottom of the discharging carriage 5.

[0025] The feeding mechanism includes X-axis cylinders 6 distributed along the X-axis direction. An X-axis support plate 7 is provided at the working end of each X-axis cylinder 6. A third Z-axis cylinder distributed along the Z-axis is provided on the X-axis support plate 7. A gripper cylinder 8 is connected to the working end of the third Z-axis cylinder. A gripper is provided at the working end of the gripper cylinder 8. The movement range of the gripper cylinder 8 covers the lowest point of the feeding carriage 4 and the polishing station.

[0026] The specific structure of the discharge mechanism is the same as that of the feeding mechanism. The movement range of the gripper cylinder 8 in the discharge mechanism covers the highest point of the discharge carriage 5 and the polishing station.

[0027] The grinding mechanism includes a Y-axis slide rail 9 fixedly supported on a frame 1. A Y-axis carriage 10 is slidably connected to the Y-axis slide rail 9. The Y-axis carriage 10 is driven by a Y-axis motor 11. The output end of the Y-axis motor 11 is connected to the Y-axis carriage 10 via a lead screw and nut transmission pair. A first Z-axis carriage 12 is movably connected inside the Y-axis carriage 10. The first Z-axis carriage 12 is driven by a first Z-axis cylinder 13 fixedly supported on the Y-axis carriage 10. A sanding belt support frame 14 is also provided on the first Z-axis carriage 12. The sanding belt support frame 14 has two symmetrically distributed support columns 15, and a grinding sanding belt 16 is wound on the support columns 15.

[0028] The rotor drive mechanism includes a Z-axis motor 17 fixedly mounted on the frame 1. The working end of the Z-axis motor 17 is connected to the second Z-axis slide 18 through a lead screw and nut transmission pair. The second Z-axis slide 18 is slidably connected to the Z-axis slide rail 19, which is mounted on the frame 1. A rotor drive motor 20 is mounted on the second Z-axis slide 18. The output end of the rotor drive motor 20 is connected to a drive wheel 21 rotatably supported on the second Z-axis slide 18 through a belt pulley transmission pair. The drive wheel 21 can contact the outer wall of the motor rotor 3.

[0029] The support block 2 is equipped with a sensor 22 that matches the limiting groove.

[0030] The Z-axis slide 12 is also equipped with a tensioning cylinder 23, and the working end of the tensioning cylinder 23 is provided with a tensioning column 24 that contacts the inner side of the grinding belt 16.

[0031] The outer wall of the drive wheel 21 is a rubber friction layer, and the surface of the rubber friction layer is also provided with textures to increase friction.

[0032] The working process of the automatic polishing device for motor rotors in this embodiment of the utility model is as follows: multiple motor rotors 3 that need to be polished are placed on the feeding slide 4. Since the feeding slide 4 is inclined, these motor rotors 3 will automatically roll down along the inclined direction until they are stopped by the workpiece stop.

[0033] The feeding mechanism takes a motor rotor 3 from the bottom of the feeding carriage 4 and places it on the polishing station. Specifically, the two connecting rods on the motor rotor 3 are placed in the limiting grooves on the two support blocks 2. Then the feeding mechanism returns to its original position, while the grinding mechanism and the rotor drive mechanism move towards the motor rotor 3. The rotor drive mechanism drives the motor rotor 3 to rotate. The outer wall of the motor rotor 3 contacts and moves relative to the grinding belt 16 in the grinding mechanism, thereby realizing automatic polishing operation. After the set polishing time is reached, the grinding mechanism and the rotor drive mechanism return to their original positions. The unloading mechanism takes away the polished motor rotor 3 and puts it into the unloading carriage 5. The motor rotor 3 automatically slides down to the end of the unloading carriage 5, where it is taken away by a robot or operator and transported to the next station or the collection container for the polished workpiece.

[0034] The operation process of the feeding mechanism is as follows: In the initial state, the gripper cylinder 8 is located above the lowest point of the feeding slide 4. The third Z-axis cylinder drives the gripper cylinder 8 to move downward. After the gripper moves to the motor rotor 3, the gripper cylinder 8 is activated, and the gripper clamps the motor rotor 3. The third Z-axis cylinder drives the gripper cylinder 8 and the motor rotor 3 to move upward together. Then the X-axis cylinder 6 is activated, driving the motor rotor 3 to move above the polishing station. The third Z-axis cylinder drives the motor rotor 3 to move downward, and the gripper is released. The motor rotor 3 is supported by two support blocks 2, and the connecting rod part on the motor rotor 3 is stuck in the limiting groove on the support block 2. After the sensor 22 located at this position detects the motor rotor 3, it sends a signal to the control system, and the control system controls the subsequent actions to proceed normally.

[0035] The operation of the discharge mechanism is similar to that described above. It uses the gripper cylinder 8 to hold the motor rotor 3 and transport it from the polishing station to the discharge slide 5. The motor rotor 3 will slide down along the inclined discharge slide 5 until it is stopped by the workpiece stop at the bottom.

[0036] The operation process of the grinding mechanism is as follows: When the control system detects that the motor rotor 3 is in place, it first sends a signal to the Y-axis motor 11. The Y-axis motor 11 drives the Y-axis slide 10 to move along the Y-axis direction through the lead screw and nut transmission pair. When the output speed of the Y-axis motor 11 reaches the preset value, the grinding belt 16 moves to the top of the motor rotor 3. Then, the first Z-axis cylinder 13 is activated, driving the first Z-axis slide 12 downward. When the first Z-axis cylinder 13 moves to the extended limit position, the grinding belt 16 contacts the surface of the motor rotor 3. In actual operation, a signal can also be sent to the tension cylinder 23. The tension cylinder 23 drives the tension column 24 upward, keeping the grinding belt 16 in a taut state, thereby ensuring that the grinding belt 16 can apply sufficient pressure to the surface of the motor rotor 3.

[0037] The operation process of the rotor drive mechanism is as follows: The Z-axis motor 17 operates, driving the second Z-axis slide 18 to move upward relative to the frame 1. After the Z-axis motor 17 moves to its position, the drive wheel 21 contacts the outer wall of the motor rotor 3. Under the action of the grinding belt 16 above, the motor rotor 3 presses against the drive wheel 21. Then, the rotor drive motor 20 operates, driving the drive wheel 21 to rotate, which in turn drives the motor rotor 3 to rotate. When the motor rotor 3 rotates, it moves relative to the grinding belt 16, thereby achieving the purpose of grinding and polishing. In order to ensure that the drive wheel 21 can smoothly drive the motor rotor 3 to rotate, the outer wall of the drive wheel 21 is a rubber friction layer. At the same time, textures are also provided on the surface of the rubber friction layer. These textures can increase the friction between the drive wheel 21 and the motor rotor 3, ensuring the driving effect.

Claims

1. A motor rotor automatic polishing device comprising a frame (1), characterized in that: The middle part of the frame (1) is a polishing station. A pair of support blocks (2) are provided at the polishing station. The support blocks (2) are provided with limiting grooves. The limiting grooves are matched with the connecting rods on the motor rotor (3). A feeding slide (4) and a discharging slide (5) are respectively provided on both sides of the polishing station. A feeding mechanism is provided in conjunction with the feeding slide (4), and a discharging mechanism is provided in conjunction with the discharging slide (5). A grinding mechanism is also provided on the frame (1) in conjunction with the polishing station. At the same time, a rotor drive mechanism is provided below the polishing station. The feeding carriage (4) is inclined, with its end close to the support block (2) being relatively low. A workpiece stop is provided at the bottom of the feeding carriage (4). The discharging carriage (5) is also inclined, with the same inclination direction and angle as the feeding carriage (4). A workpiece stop is also provided at the bottom of the discharging carriage (5). The feeding mechanism includes X-axis cylinders (6) distributed along the X-axis direction. An X-axis support plate (7) is provided at the working end of the X-axis cylinder (6). A third Z-axis cylinder is provided on the X-axis support plate (7) distributed along the Z-axis. A gripper cylinder (8) is connected to the working end of the third Z-axis cylinder. A gripper is provided at the working end of the gripper cylinder (8). The movement range of the gripper cylinder (8) covers the lowest point of the feeding carriage (4) and the polishing station. The specific structure of the discharge mechanism is the same as that of the feeding mechanism. The movement range of the gripper cylinder (8) in the discharge mechanism covers the highest point of the discharge carriage (5) and the polishing station. The grinding mechanism includes a Y-axis slide rail (9) fixedly supported on the frame (1), a Y-axis slide (10) slidably connected on the Y-axis slide rail (9), the Y-axis slide (10) being driven by a Y-axis motor (11), the output end of the Y-axis motor (11) being connected to the Y-axis slide (10) via a lead screw and nut transmission pair, a first Z-axis slide (12) being movably connected inside the Y-axis slide (10), the first Z-axis slide (12) being driven by a first Z-axis cylinder (13) fixedly supported on the Y-axis slide (10), and a sanding belt support frame (14) being provided on the first Z-axis slide (12), the sanding belt support frame (14) being provided with two symmetrically distributed support columns (15), and a grinding sanding belt (16) being wound on the support columns (15). The rotor drive mechanism includes a Z-axis motor (17) fixedly mounted on the frame (1). The working end of the Z-axis motor (17) is connected to the second Z-axis slide (18) through a lead screw and nut transmission pair. The second Z-axis slide (18) is slidably connected to the Z-axis slide rail (19), and the Z-axis slide rail (19) is mounted on the frame (1). A rotor drive motor (20) is mounted on the second Z-axis slide (18). The output end of the rotor drive motor (20) is connected to the drive wheel (21) rotatably supported on the second Z-axis slide (18) through a belt pulley transmission pair. The drive wheel (21) can contact the outer wall of the motor rotor (3).

2. The motor rotor automatic polishing apparatus of claim 1, wherein: The support block (2) is provided with a sensor (22) that matches the limiting groove.

3. The automatic polishing device for motor rotors according to claim 1, characterized in that: The Z-axis slide (12) is also equipped with a tensioning cylinder (23), and the working end of the tensioning cylinder (23) is equipped with a tensioning column (24) that contacts the inner side of the grinding belt (16).

4. The automatic polishing device for motor rotors according to claim 1, characterized in that: The outer wall of the drive wheel (21) is a rubber friction layer, and the surface of the rubber friction layer is also provided with textures to increase friction.

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