A magnetic throwing device

Abstract

The application provides a magnetic polishing device, comprising: a rotating disc with a first central axis; a first driving device for driving the rotating disc to rotate around the first central axis; a plurality of positioning assemblies arranged circumferentially on the rotating disc, the positioning assemblies being used for loading a cup body and being rotationally connected with the cup body; a magnetic power assembly comprising at least one magnetic power source, the at least one magnetic power source being arranged corresponding to the positioning assemblies, and a side of the magnetic power source forming a magnetic field being directed towards the cup body; and a transmission assembly being in transmission cooperation with the positioning assemblies or the cup body, so as to drive the cup body to rotate relative to the positioning assemblies when the rotating disc rotates around the first central axis. The magnetic polishing device disclosed by the application can reduce the floor area occupied by the device and improve the uniformity of cup body polishing.

Description

Technical Field

[0001] This invention relates to the field of metal surface treatment equipment technology, and more particularly to a magnetic polishing device. Background Technology

[0002] Magnetic polishing is a process that uses an alternating magnetic field to drive magnetic abrasive materials (such as magnetic steel needles) to tumble at high frequency, thereby performing precision micro-cutting, deburring, and physical grinding on the inner cavity of a workpiece (such as a cup or cylinder with an internal cavity). Currently, in mass production scenarios, magnetic polishing equipment generally adopts a linear series conveyor structure, that is, multiple polishing stations are arranged in a straight line.

[0003] However, existing linear conveyor magnetic polishing equipment suffers from drawbacks such as large space occupation and uneven polishing. The polishing stations are arranged in a straight line, causing the entire equipment to extend longitudinally. As production capacity increases, the length of the entire machine also increases, resulting in low space utilization. At the same time, the workpiece is only translated in a straight line with the conveyor mechanism. The trajectory of the workpiece relative to the alternating magnetic field is fixed, which restricts the direction of force on the magnetic abrasive material inside the workpiece. This leads to disorder in the tumbling of the abrasive material and insufficient cutting coverage, which in turn creates grinding dead angles in the inner cavity of the workpiece, resulting in uneven polishing.

[0004] It should be noted that the above description of the background technology is only for the purpose of providing a clear and complete explanation of the technical solutions of the present invention and facilitating understanding by those skilled in the art. It should not be assumed that the above technical solutions are known to those skilled in the art simply because they have been described in the background section of the present invention. Summary of the Invention

[0005] The purpose of this invention is to disclose a magnetic polishing device to solve many defects in the prior art, especially to reduce the equipment footprint and improve the uniformity of cup polishing.

[0006] To achieve the above objectives, the present invention provides a magnetic polishing device, comprising: a turntable having a first central axis; A first driving device is used to drive the turntable to rotate around the first central axis; Several positioning components are arranged circumferentially on the turntable, and the positioning components are used to load the cup body and are rotatably connected to the cup body. A magnetic power assembly includes at least one magnetic power source, which is disposed corresponding to the positioning assembly, with the side of the magnetic power source that forms a magnetic field facing the cup body; A transmission component, in transmission cooperation with the positioning component or the cup body, drives the cup body to rotate relative to the positioning component when the turntable rotates about the first central axis.

[0007] As a further improvement of the present invention, the transmission assembly includes an annular transmission disk coaxially fixed below the turntable, and driven wheels that are connected one-to-one with the positioning assembly. The positioning component has a drive shaft for supporting the cup body, and the driven wheel is coaxially and fixedly connected to the drive shaft; When the turntable rotates around the first central axis, the driven wheel engages with the annular transmission disc to rotate around its own axis, thereby driving the cup body to rotate via the transmission shaft.

[0008] As a further improvement of the present invention, the annular transmission disk is configured as an annular gear disk, the driven wheel is configured as a gear, and the gear meshes with the annular gear disk.

[0009] As a further improvement of the present invention, the annular transmission disc is configured as an annular friction disc, the driven wheel is a roller, and the outer circumferential surface of the roller abuts against the annular friction disc.

[0010] As a further improvement of the present invention, the transmission assembly includes: a plurality of friction rollers evenly distributed along the circumference; The plurality of friction rollers are disposed below the positioning assembly along the first central axis. The friction rollers are configured to abut against the outer wall of the cup body so that when the turntable rotates about the first central axis, the cup body is driven to rotate by friction against the outer wall of the cup body.

[0011] As a further improvement of the present invention, the positioning component includes: a support plate disposed on the turntable; The first support block and the linear drive unit are arranged radially opposite to each other on both sides of the support plate; The drive shaft passes through the first support block and is rotatably connected to the first support block; A first abutment block, the first abutment block being connected to the drive shaft; and The second abutment is rotatably connected to the telescopic shaft of the linear drive unit; The cup body is rotatably held between the first abutment block and the second abutment block.

[0012] As a further improvement of the present invention, the support plate is rotatably connected to the turntable via a pivot shaft; The support plate is configured to flip and switch between loading / unloading positions and processing positions about the pivot axis; In the processing position, the support plate is horizontally flattened or inclined relative to the horizontal plane, while the opening of the cup body faces the radially outer or radially inner side of the turntable; When the material is loaded or unloaded, the support plate is in a vertical position or is inclined relative to the vertical direction, and the opening of the cup body faces upward.

[0013] As a further improvement of the present invention, the magnetic polishing device is provided with at least one material handling station along the circumferential outer side of the turntable; The positioning component is configured such that when the turntable rotates to the material loading / unloading station, the support plate switches to the loading / unloading position. When the number of material handling stations is one, the material handling station is configured to handle material handling and dispensing operations for the cup body; When there are multiple material handling stations, the multiple material handling stations are configured to independently perform material handling and material dispensing operations on the cup body, or each of the material handling stations is used for material handling and material dispensing operations on the cup body.

[0014] As a further improvement of the present invention, the central axis of the cup body is parallel to the horizontal plane or inclined relative to the horizontal plane.

[0015] As a further improvement of the present invention, the magnetic polishing device further includes: an annular anti-leakage plate, which is disposed between the positioning component and the magnetic power component along the first central axis; the annular anti-leakage plate is recessed on one side facing the cup body to form an annular groove.

[0016] Compared with existing technologies, the beneficial effects of this invention are as follows: By arranging several positioning components in a ring around the first central axis in the plane of the turntable, the magnetic polishing device only needs to expand in the circumferential direction of the turntable when increasing production capacity or adding workstations. This circumferential ring layout can reduce the equipment footprint without increasing the overall length of the machine, solving the problem of low space utilization in traditional linear magnetic polishing conveyor equipment. Simultaneously, by setting a transmission component that cooperates with the positioning components or the cup body, the transmission component can drive the cup body to rotate relative to the positioning components during the turntable's revolution around the first central axis. This results in a composite motion of the cup body revolving around the first central axis and rotating during the polishing process. This composite motion allows each circumferential part of the cup body's inner cavity to enter the magnetic field area of ​​the magnetic power source sequentially and uniformly. During this process, the force direction and tumbling flow field of the magnetic abrasive material inside the cup body are continuously adjusted, thereby eliminating the dead angles in the inner cavity grinding caused by the fixed workpiece movement trajectory, improving the uniformity and consistency of polishing, and solving the technical problem of uneven polishing in existing equipment. Attached Figure Description

[0017] Figure 1 This is a cross-sectional schematic diagram of the magnetic polishing device disclosed in this invention; Figure 2 A top view showing the connection between the positioning component and the turntable; Figure 3 for Figure 1A partial schematic diagram of the connection between the turntable and the support plate, wherein the annular transmission disc is configured as an annular gear disc and the driven wheel is configured as a gear; Figure 4 for Figure 1 Sectional view along the middle AA direction; Figure 5 for Figure 4 A partial schematic diagram of the meshing of the intermediate gear and the ring gear disk; Figure 6 A schematic diagram showing the support plate standing upright. Figure 7 for Figure 2 Enlarged view of center circle B; Figure 8 This is a schematic diagram of a transmission assembly according to another embodiment; Figure 9 for Figure 8 A partial schematic diagram of the connection between the turntable and the support plate, wherein the transmission component includes multiple friction rollers evenly distributed along the circumference; Figure 10 A top view of the transmission assembly including multiple friction rollers evenly distributed along the circumference: Figure 11 for Figure 10 Enlarged view of center circle C: Figure 12 A schematic diagram showing the annular transmission disc configured as an annular friction disc and the driven wheel configured as a roller; Figure 13 This is a top view of the positioning component connected to the turntable in another embodiment; Figure 14 for Figure 13 The diagram shows a partial cross-sectional view of the connection between the positioning component and the turntable. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0019] The accompanying drawings in this invention are not strictly drawn to scale, and the specific dimensions of each structure can be determined according to actual needs. The drawings described in this invention are merely structural schematic diagrams. The lines shown in the accompanying drawings of this invention can be understood as components with a certain actual thickness.

[0020] Please refer to Figures 1 to 14 A specific embodiment of a magnetic polishing device is disclosed, which is mainly used for magnetic polishing of the inner cavity of a cup body 40 (or other cylindrical or tubular workpieces with an inner cavity).

[0021] Reference Figures 1 to 7 as shown, in the present embodiment, the magnetic polishing apparatus 100 includes a turntable 10, a first driving device 20, a plurality of positioning assemblies 30, a magnetic power assembly 50, and a transmission assembly 60.

[0022] The turntable 10 has a first central axis 11. The turntable 10 is of a disc-shaped structure and arranged in a horizontal posture, and the first central axis 11 is the central axis of the turntable 10. The first driving device 20 is configured to drive the turntable 10 to rotate around the first central axis 11. The first driving device 20 may adopt a servo motor or a stepper motor, and is preferably matched with a conventional transmission mechanism such as a speed reducer, so as to drive the turntable 10 to rotate around the first central axis 11.

[0023] A plurality of positioning assemblies 30 are arranged on the turntable 10 in the circumferential direction, and the positioning assemblies 30 are configured to load the cup body 40 and are rotatably connected with the cup body 40. The plurality of positioning assemblies 30 are evenly arranged on the turntable 10 in the circumferential direction (for example, in an annular array), each positioning assembly 30 is configured to load the cup body 40 to be polished, and forms a rotational connection with the cup body 40, so that the cup body 40 has the degree of freedom of rotation when being loaded. The magnetic power assembly 50 includes at least one magnetic power source 51, the at least one magnetic power source 51 is disposed corresponding to the positioning assembly 30, and one side of the magnetic power source 51 forming a magnetic field faces the cup body 40. The magnetic power source 51 may include an electromagnetic coil group or a permanent magnet array, and the working surface thereof forming the magnetic field faces the cup body 40. When the cup body 40 loaded with magnetic abrasive materials (such as magnetic steel pins) and polishing liquid rotates to the magnetic field action area of the magnetic power source 51 along with the turntable 10, the high-frequency alternating magnetic field or rotating magnetic field penetrates through the wall surface of the cup body 40, and drives the magnetic abrasive materials inside the cup body 40 to perform high-frequency tumbling and micro-cutting, thereby polishing the inner cavity of the cup body 40.

[0024] The transmission assembly 60 is in transmission fit with the positioning assembly 30 or the cup body 40, so as to drive the cup body 40 to rotate relative to the positioning assembly 30 when the turntable 10 rotates around the first central axis 11. During the process that the turntable 10 rotates (i.e., revolves) around the first central axis 11, the transmission assembly 60 converts the revolving motion of the turntable 10 into power, so as to drive the cup body 40 to synchronously rotate (i.e., rotate on its own axis) relative to the positioning assembly 30.

[0025] To address the technical problems of excessive length, large space occupation, and difficulty in expanding workstations in existing linear magnetic polishing conveyor equipment, this embodiment abandons the traditional layout of workstations arranged in a straight line and adopts a disc-shaped turntable 10 as the carrier and conveyor for the workstations. By forming a ring arrangement of several positioning components 30 around the first central axis 11 in the plane of the turntable 10, the magnetic polishing device 100 can be expanded only in the circumferential direction of the turntable 10 when increasing production capacity or adding workstations. This circumferential ring layout can reduce the equipment's footprint without increasing the overall length of the machine, solving the problem of low space utilization in traditional linear magnetic polishing conveyor equipment.

[0026] Meanwhile, addressing the technical problem of uneven polishing of the inner cavity caused by the single workpiece movement trajectory in existing linear magnetic polishing conveyor equipment, this embodiment sets up a transmission component 60 that drives the cup 40 to rotate relative to the positioning component 30 during the revolution of the turntable 10 around the first central axis 11. This results in a combined motion of the cup 40 revolving around the first central axis 11 and rotating during the polishing process. This combined motion allows each circumferential part of the inner cavity of the cup 40 to enter the magnetic field area of ​​the magnetic power source 51 sequentially and uniformly. During this process, the force direction and tumbling flow field of the magnetic abrasive material inside the cup 40 are continuously adjusted, thereby eliminating the dead angles in the inner cavity polishing caused by the fixed workpiece movement trajectory, improving the uniformity and consistency of polishing, and solving the technical problem of uneven polishing in existing equipment.

[0027] In this invention, "workstation" does not refer to a fixed spatial area on the turntable 10, but rather to a functional unit that carries the cup body 40 and performs processing or loading / unloading actions. Since this function is entirely implemented independently by the positioning component 30 and moves synchronously with the turntable 10, the "workstation" is structurally and functionally equivalent to the positioning component 30 itself.

[0028] In some examples, the frame 80 is provided with a slewing bearing or thrust ball bearing assembly (not shown) arranged coaxially with the first central axis 11. The turntable 10 is rotatably connected to the frame 80 through this slewing support structure, allowing the turntable 10 to rotate circumferentially relative to the frame 80 around the first central axis 11. The stator end of the first drive device 20 is fixedly connected to the frame 80, and its output shaft is drivenly connected to the turntable 10 to drive the turntable 10 to rotate around the first central axis 11.

[0029] In some examples, the parameter Figures 3 to 5As shown, the transmission assembly 60 includes an annular transmission disk 61 coaxially fixed below the turntable 10, and driven wheels 62 connected one-to-one with the positioning assembly 30; the positioning assembly 30 has a transmission shaft 36 for supporting the cup body 40, and the driven wheels 62 are coaxially fixedly connected to the transmission shaft 36; when the turntable 10 rotates around the first central axis 11, the driven wheels 62 and the annular transmission disk 61 are driven to rotate around their own axis, thereby driving the cup body 40 to rotate through the transmission shaft 36.

[0030] The annular drive disc 61 has a circular structure and is coaxially fixed below the turntable 10. It can be fixedly installed on the frame 80. The annular drive disc 61 does not rotate with the turntable 10, and its central axis coincides with the first central axis 11. The number of driven wheels 62 is the same as the number of positioning components 30, and they are arranged in a one-to-one correspondence. In order to achieve precise power transmission, each positioning component 30 has a drive shaft 36 for supporting the cup body 40, and the corresponding driven wheel 62 is coaxial (e.g., ...). Figure 4 The axis of the drive shaft 36 (in the direction shown by axis C) is fixedly connected to the drive shaft 36.

[0031] During the operation of the magnetic polishing device 100, when the first drive device 20 drives the turntable 10 to revolve around the first central axis 11, the various positioning components 30 and their transmission shafts 36 mounted on the turntable 10 will move circumferentially with the turntable 10. During this circumferential movement, the driven wheel 62 fixed on the transmission shaft 36 will move relative to the stationary annular transmission disk 61, and the two will generate torque through transmission cooperation. This torque forces the driven wheel 62 to rotate around its own axis (i.e., rotate on its own axis) while revolving with the turntable 10; this rotational power is then directly transmitted to the cup body 40 through the transmission shaft 36 to drive the cup body 40 to rotate synchronously on its respective workstation.

[0032] By utilizing the revolution of the turntable 10 to drive the rotation of the cup 40, there is no need to configure an independent rotation drive motor and complex electrical control system for each positioning component 30. This simplifies the internal mechanical structure and electrical control logic of the magnetic polishing device 100, reduces the manufacturing cost and maintenance difficulty of the equipment, and ensures that the rotation of all cups 40 during the revolution is synchronized and stable, further improving the uniformity of polishing the inner cavity of the cup 40. At the same time, placing the annular transmission disk 61 below the turntable 10 effectively avoids interference of the transmission structure with the operating space above the turntable 10, improving the overall compactness of the magnetic polishing device 100.

[0033] In some examples, the annular drive disk 61 can also be rotatably mounted on the frame 80 (not shown in this case), located axially below the turntable 10, maintaining a coaxial and relatively independent rotational relationship with the turntable 10. When the turntable 10 rotates in the forward direction, the annular drive disk 61 can rotate in the opposite direction of the turntable 10 via a second drive device (not shown). When the turntable 10 drives the cup body 40 to revolve around the first central axis 11 in a first direction (e.g., clockwise), the annular drive disk 61 simultaneously rotates in a second direction (e.g., counterclockwise) opposite to the first direction. At this time, the driven wheel 62 fixed on the drive shaft 36 moves circumferentially with the turntable 10 in the first direction, while the annular drive disk 61 drives the driven wheel 62 in the second direction. Since the rotation directions of the two are opposite, the linear velocities of the driven wheel 62 and the annular drive disk 61 at the transmission contact point are in the same direction and superimposed in magnitude, making the relative linear velocity between them higher than the linear velocity generated only by the revolution of the turntable 10. The increased relative linear velocity translates into a higher rotational drive input to the drive shaft 36, enabling the cup body 40 to achieve a higher rotational speed or a more stable rotational torque under the same load. Simultaneously, the annular drive disc 61 is independently mounted on the frame 80, and its revolution motion does not interfere with that of the turntable 10. The two can operate independently and work in coordination, further improving the stability of the cup body 40's rotation, thereby ensuring the uniformity and consistency of the polishing of the cup body 40's inner cavity.

[0034] In some examples, the parameter Figures 3 to 6 As shown, the annular transmission disk 61 is configured as an annular gear disk 611, and the driven wheel 62 is configured as a gear 621, which meshes with the annular gear disk 611. The annular gear disk 611 is coaxially fixed below the turntable 10, and its outer circumferential surface has a toothed structure 6111 arranged continuously along the circumference; the gear 621 is coaxially fixedly connected to the end of the transmission shaft 36 away from the cup body 40, and the gear 621 is adapted to the toothed structure 6111 of the annular gear disk 611. In the assembled state, the gear 621 meshes with the toothed structure 6111 of the annular gear disk 611. When the first driving device 20 drives the turntable 10 to revolve around the first central axis 11, the gear 621 connected to the positioning component 30 revolves synchronously and rotates around its own axis under the meshing action with the annular gear disk 611, thereby driving the cup body 40 to rotate synchronously through the transmission shaft 36. This gear meshing transmission method can provide a precise and constant transmission ratio. When dealing with large cups 40 or cups 40 containing a large number of polishing steel needles, the meshing of gear 621 and ring gear 611 can provide a large transmission torque. This ensures that even under heavy load and high resistance conditions, the cups 40 at all stations can maintain a consistent rotation speed, avoiding uneven polishing of the inner cavity of the cups 40 at each station due to transmission slippage, and achieving high-strength power transmission.

[0035] In some examples, the parameter Figure 12As shown, the annular drive disc 61 is configured as an annular friction disc 612, and the driven wheel 62 is a roller 622, with the outer circumferential surface of the roller 622 abutting against the annular friction disc 612. The driven wheel 62 is a roller 622 (e.g., a rubber wheel with an outer edge covered with a high-friction coefficient material such as polyurethane or rubber). In the assembled state, the outer circumferential surface of the roller 622 maintains tight contact with the outer circumferential surface of the annular friction disc 612. When the turntable 10 revolves, the roller 622 rolls due to the friction between its outer circumferential surface and the annular friction disc 612, thereby driving the drive shaft 36 and the cup body 40 to rotate. This frictional contact transmission method allows the corresponding roller 622 to slip moderately on the surface of the annular friction disc 612 when the cup body 40 at a certain station is obstructed by foreign objects or the load is momentarily too large during the polishing process. The slippage mechanism can instantly release the rigid torque of the workstation, effectively preventing the main motor of the equipment from overload and burning out or the transmission shaft 36 from breaking. In addition, the flexible friction transmission also reduces the mechanical noise generated by the meshing of metal parts, making the equipment run more smoothly and quietly.

[0036] In some examples, the annular friction disc 612 is preferably made of a metal or engineering plastic with a surface hardness higher than that of the outer edge material of the roller 622. For example, the main body of the annular friction disc 612 can be made of metal materials such as stainless steel or aluminum alloy; or, the annular friction disc 612 can be integrally injection molded or machined from high wear-resistant engineering plastics such as polyurethane. By configuring the surface hardness of the annular friction disc 612 to be higher than that of the outer edge material of the roller 622, wear is mainly concentrated on the replaceable roller 622 during long-term friction transmission. As a basic transmission component fixed on the frame 80, the annular friction disc 612 can maintain dimensional stability and is not easily deformed, thereby extending the maintenance cycle of the entire machine and reducing maintenance costs. At the same time, the higher surface hardness also helps to maintain the flatness of the outer circumference of the annular friction disc 612, avoiding friction fluctuations caused by local wear and depressions, and further ensuring the consistency of the rotation speed and polishing uniformity of the cups 40 at each workstation. In addition, the outer circumferential surface of the annular friction disc 612 can be provided with anti-slip textures or knurled structures, such as fine straight lines, diagonal lines or diamond patterns evenly distributed along the circumference, to increase the effective friction coefficient between it and the roller 622. Under the premise of ensuring the slip protection function, it can improve the transmission efficiency and torque transmission capability under normal working conditions and prevent unexpected slippage caused by load fluctuations.

[0037] In some examples, the parameter Figures 8 to 11As shown, the transmission assembly 60 includes a plurality of friction rollers 63 evenly distributed circumferentially. The plurality of friction rollers 63 are disposed below the positioning assembly 30 along a first central axis 11. The friction rollers 63 are configured to abut against the outer wall of the cup body 40, so that when the turntable 10 rotates around the first central axis 11, the cup body 40 is driven to rotate by friction against the outer wall of the cup body 40. The plurality of friction rollers 63 are arranged in a circular array around the first central axis 11, and at least one friction roller 63 corresponds to one positioning assembly 30. The friction rollers 63 are vertically disposed below the positioning assembly 30, and their radial positions intersect the movement trajectory of the cup body 40, thereby enabling the roller surface of the friction rollers 63 to abut against the outer wall of the cup body 40. To ensure reliable contact, the roller surface of the friction rollers 63 may be coated with a wear-resistant elastic material with a high coefficient of friction, such as polyurethane or rubber, so that the friction rollers 63 always apply a preset radial pressure to the outer wall of the cup body 40. During operation, when the first drive device 20 drives the turntable 10 to revolve around the first central axis 11, the cup 40 loaded by the positioning component 30 moves circumferentially accordingly. As the cup 40 revolves past the positions of the friction rollers 63, the outer wall of the cup 40 inevitably comes into contact with the friction rollers 63. During this process, the reaction friction force exerted by the friction rollers 63 on the outer wall of the cup 40 directly generates an eccentric torque that drives the cup 40 to rotate around its own axis, thus forcing the cup 40 to rotate simultaneously with its revolution. This method provides a rotation drive scheme that directly acts on the outer wall of the cup 40. This scheme eliminates the need for an annular toothed disc or annular friction disc below the turntable 10, and also eliminates the need for a gear train or transmission shaft structure for each positioning component 30. Instead, it utilizes the direct frictional contact between the friction rollers 63 and the outer wall of the cup 40 to achieve power transmission. This simplifies the mechanical structure of the transmission component 60 and reduces the processing and assembly costs of the magnetic polishing device 100. In addition, the friction drive can achieve flexible protection by slipping when encountering overload or jamming, avoiding damage to the cup body 40 or internal transmission components due to rigid impact, effectively improving the safety and stability of the magnetic polishing device 100.

[0038] In some examples, the parameter Figure 3 As shown, the positioning component 30 includes: a support plate 31, a first support block 32, a linear drive unit 34, a first abutment block 37, and a second abutment block 35; the support plate 31 is disposed on the turntable 10; the first support block 32 and the linear drive unit 34 are radially opposite to each other on both sides of the support plate 31; the drive shaft 36 passes through the first support block 32 and is rotatably connected to the first support block 32; the first abutment block 37 is connected to the drive shaft 36; the second abutment block 35 is rotatably connected to the telescopic shaft 341 of the linear drive unit 34; wherein, the cup body 40 is rotatably clamped between the first abutment block 37 and the second abutment block 35.

[0039] The first support block 32 and the linear drive unit 34 are arranged opposite each other on both sides of the support plate 31 along the radial direction of the turntable 10 (or the axial direction of the cup body 40). The drive shaft 36 passes through the first support block 32 in the horizontal direction and is rotatably connected to the first support block 32 through a bearing structure, ensuring that the drive shaft 36 can rotate smoothly around its own axis C. The first abutment block 37 is fixedly connected to the end of the drive shaft 36 facing the cup body 40 and is used to abut the closed end 42 of the cup body 40. The telescopic shaft 341 of the linear drive unit 34 (such as a cylinder, electric cylinder, or hydraulic cylinder) extends toward the first support block 32; the second abutment block 35 is rotatably connected to the end of the telescopic shaft 341 through a bearing structure and is used to abut and seal the open end 41 of the cup body 40. The cup body 40 is rotatably clamped between the first abutment block 37 and the second abutment block 35, and the second abutment block 35 seals the open end 41 of the cup body 40.

[0040] The linear drive unit 34 controls the telescopic shaft 341 to retract, causing the second abutment 35 to move away from the first abutment 37, thus creating enough space between the first abutment 37 and the second abutment 35 to insert or remove the cup 40. After the cup 40 is inserted, the linear drive unit 34 drives the telescopic shaft 341 to extend, pushing the second abutment 35 to press tightly against one end of the cup 40, forcing the other end of the cup 40 to fit tightly against the first abutment 37. At this time, the cup 40 is axially limited and firmly clamped between the first abutment 37 and the second abutment 35, and the opening of the cup 40 is sealed by the second abutment 35. When the drive shaft 36 starts to rotate, the drive shaft 36 drives the first abutment 37 to rotate, and the first abutment 37 transmits the rotational torque to the cup 40 by relying on the end face friction. At this time, since the second abutment 35 and the telescopic shaft 341 are freely rotatable, the second abutment 35 will rotate synchronously with the cup 40. Through the aforementioned structure, the positioning component 30 achieves automated clamping and stable support of the cup body 40. The linear drive unit 34 enables the positioning component 30 to adapt to cup bodies 40 of different lengths, improving the versatility and changeover efficiency of the magnetic polishing device 100. Furthermore, by using the linear drive unit 34 to replace traditional manual bolts or clamps for locking, automated clamping and release of the cup body 40 is achieved. This reduces the labor intensity of operators, allowing the magnetic polishing device 100 to be matched with an automated robotic arm for unmanned operation, thus improving polishing efficiency. The specific implementation methods for the docking structure, signal interaction, and loading / unloading control logic between the magnetic polishing device 100 and the automated robotic arm to achieve unmanned operation are existing technologies and will not be elaborated here.

[0041] In some examples, the parameter Figure 3As shown, a second support block 33 is fixedly installed on the support plate 31. The cylinder of the linear drive unit 34 is fixed to the second support block 33, so that the telescopic shaft 341 of the linear drive unit 34 can stably extend and retract along the axial direction of the cup body 40. The second support block 33 can provide reliable installation support and positioning reference for the linear drive unit 34, ensuring that the extension direction of the telescopic shaft 341 is aligned with the axis of the transmission shaft 36, so that the second abutment 35 can accurately abut against the opening end 41 of the cup body 40, realizing stable clamping and sealing of the cup body 40.

[0042] In some examples, the first abutment 37 and the second abutment 35 are made of elastic materials such as polyurethane, fluororubber, or food-grade silicone. When the linear drive unit 34 pushes the second abutment 35 to press the cup body 40 against the first abutment 37, the second abutment 35 undergoes elastic deformation under pressure and tightly fits the end face of the opening end 41 of the cup body 40. It adaptively fills the gap between the opening end 41 and the second abutment 35 using the elastic restoring force of the material itself, thereby achieving a reliable sealing effect. Simultaneously, the first abutment 37, as a support side, also has elastic buffering capacity, which can prevent rigid compression damage to the cup body 40 during the pressing process, ensuring both sealing reliability and protection of the cup body 40.

[0043] In some examples, the parameter Figure 9As shown, when the transmission assembly 60 adopts the structure of direct friction drive between the multiple friction rollers 63 and the outer wall of the cup body 40, the internal structure of the positioning assembly 30 can be adapted accordingly. Specifically, the positioning assembly 30 still includes a support plate 31, a first support block 32, a second support block 33, a linear drive unit 34, a drive shaft 36, a first abutment block 37, and a second abutment block 35. Since the rotational power of the cup body 40 comes directly from the friction force on the outer wall, there is no need to input rotational torque from the end. Therefore, both the first abutment block 37 and the second abutment block 35 are configured as follow-up clamping sides. On the side where the first support block 32 is located, the side of the first abutment block 37 facing away from the cup body 40 is rotatably connected to the first support block 32 through the drive shaft 36, allowing the first abutment block 37 to rotate freely relative to the first support block 32. On the side where the linear drive unit 34 is located, the second abutment block 35 is also rotatably connected to the telescopic shaft 341 through a bearing structure. The operation logic of the loading / unloading stage and the clamping stage is the same as in the aforementioned embodiment. The linear drive unit 34 automatically releases or axially clamps the cup body 40 by retracting or extending the telescopic shaft 341, firmly holding the cup body 40 between the first abutment block 37 and the second abutment block 35. Upon entering the polishing rotation stage, when the turntable 10 drives the positioning component 30 and the clamped cup body 40 to revolve, and the outer wall of the cup body 40 comes into contact with the friction roller 63, the cup body 40 directly rotates under the drive of external eccentric friction. At this time, since both the first abutment block 37 and the second abutment block 35 clamped at both ends of the cup body 40 have completely free rotational freedom, they will rotate synchronously with the cup body 40. This structure ensures that when the cup body 40 is clamped, its ends only bear axial limiting clamping force, while the circumferential rotation direction is completely free to follow without mechanical interference. This reduces the mechanical resistance of the cup body 40 when rotating under the drive of the friction roller 63, avoids abnormal end-face wear, and ensures smooth operation and process stability of the friction transmission scheme.

[0044] In some examples, the parameter Figure 3 , Figure 6 and Figure 7As shown, the support plate 31 is rotatably connected to the turntable 10 via a pivot shaft 38. The support plate 31 is configured to have a loading / unloading posture relative to the turntable 10 and a processing posture relative to the turntable 10. The support plate 31 is configured to flip and switch between the loading / unloading posture and the processing posture around the pivot shaft 38. In the processing posture, the support plate 31 is horizontally flattened or inclined relative to the horizontal plane, while the opening of the cup body 40 faces the radially outer or radially inner side of the turntable 10. In the loading / unloading posture, the support plate 31 is vertically upright or inclined relative to the vertical direction, while the opening of the cup body 40 faces upward. The support plate 31 can be mounted on the turntable 10 via the pivot shaft 38 (such as a pivot or hinge), so that the support plate 31 can flip within a preset angle range around a pivot axis parallel to the tangent of the turntable 10, thereby realizing the switching between the processing posture and the loading / unloading posture. The specific implementation of the control logic for switching the processing posture and loading / unloading posture of the support plate 31 to match the automated robotic arm to achieve unmanned operation is existing technology and will not be elaborated here.

[0045] When the magnetic polishing device 100 is in the processing operation, the support plate 31 switches to the processing position (e.g., Figure 3 , Figure 9 and Figure 14 (As shown). In this state, the support plate 31 is horizontally flattened or tilted relative to the horizontal plane, thereby causing the clamped cup 40 to rotate and lie flat simultaneously. This makes the central axis of the cup 40 parallel to the horizontal plane or tilted at a small angle relative to the horizontal plane, while the opening of the cup 40 faces the radially outer or radially inner side of the turntable 10. In this processing position, the cup 40 is horizontally or tilted flattened, so that the large area of ​​the inner wall of the cup 40 can be parallel to the magnetic power source 51 below the turntable 10, ensuring the optimal contact angle between the inner cavity of the cup 40 and the polishing medium (including magnetic abrasive materials and polishing liquid) during the magnetic polishing process. This flattened posture increases the area of ​​the cup 40 exposed to the effective magnetic field of the magnetic power source 51, enhances the penetration and driving efficiency of the magnetic field into the polishing medium inside the cup, and further improves the uniformity of polishing the inner cavity of the cup 40.

[0046] When the magnetic throwing device 100 enters the loading or unloading process, the support plate 31 switches to the loading / unloading position (e.g., Figure 6(As shown). In this state, the support plate 31 flips upward around the aforementioned pivot axis, standing upright or slightly tilted relative to the vertical direction, thereby causing the cup body 40 to flip and stand upright simultaneously, so that the opening of the cup body 40 faces directly upward. In the loading and unloading position, the vertical opening of the cup body 40 is aligned with the direction of gravity, so that when the operator or external feeding equipment puts polishing media into the cup body 40 or loads it, the polishing media can be prevented from overflowing or spilling. Furthermore, the upward-facing vertical posture of the cup body 40 conforms to the grasping and placing path of conventional automated robotic arms, which facilitates the use of conventional robotic arms to achieve automated loading and unloading, improving the overall automation level and production efficiency of the equipment.

[0047] In some examples, to achieve stable switching and reliable holding of the support plate 31 between the magnetic polishing state and the loading / unloading state, a limiting mechanism (not shown) is configured between the support plate 31 and the turntable 10. This limiting mechanism is configured to provide positional constraint or locking to the support plate 31 when it is flipped to the processing or loading / unloading position, resisting vibration or centrifugal force during the polishing process and ensuring that the support plate 31 remains in the target posture without displacement or shaking. As a feasible implementation, the limiting mechanism can employ, but is not limited to, the engagement of elastic buckles and slots, or the self-locking friction torque provided by damping shafts, friction plates, etc., to achieve posture holding. In specific implementations, one or more of the above combinations can be selected as the specific structure of the limiting mechanism based on factors such as the load size of the support plate 31, the switching frequency, and the spatial layout. Since such limiting structures are conventional techniques in the field of mechanical design, their specific internal structure will not be described in detail here; any structure that can reliably position and lock the support plate 31 in the processing and loading / unloading positions is acceptable.

[0048] In some examples, the parameter Figure 2 As shown, the magnetic polishing device 100 has at least one material handling station along the outer circumference of the turntable 10. This material handling station is located in a non-polishing processing area, that is, in a position where the magnetic field of the magnetic power source 51 is not provided along the circumference of the turntable 10. The positioning component 30 is configured such that when the turntable 10 rotates to the material handling station, the support plate 31 switches to the loading / unloading position. When there is only one material handling station, it is configured to handle the material handling and unloading of the cup body 40. When there are multiple material handling stations, they are configured to handle the material handling and unloading of the cup body 40 independently, or each material handling station handles both the material handling and unloading of the cup body 40.

[0049] When the positioning component 30 rotates with the turntable 10 to the material loading / unloading station, the support plate 31 is switched to the loading / unloading position by the automated robot or manual control. At this time, the opening of the cup body 40 faces upward, which facilitates the loading or unloading of the cup body 40.

[0050] When the number of pick-up and drop-off stations is one, this pick-up and drop-off station (e.g., Figure 2 The first loading / unloading station 91 is configured to handle both loading and unloading of the cup body 40. Specifically, when the positioning component 30 carrying the cup body 40 to be processed rotates with the turntable 10 to the first loading / unloading station 91, the support plate 31 flips to the loading / unloading position, and an external mechanism (such as an automated robotic arm) or a person performs the unloading action to load the cup body 40 into the positioning component 30; then the turntable 10 continues to rotate, and the positioning component 30 enters the magnetic polishing processing area (i.e., the area along the circumference of the turntable 10, excluding the loading / unloading station, where a magnetic power source 51 is provided and its magnetic field can act on the cup body 40) to complete the inner cavity polishing; after processing, the positioning component 30 rotates back with the turntable 10 to the first loading / unloading station 91, the support plate 31 flips to the loading / unloading position again, and an external mechanism or a person performs the loading action to remove the processed cup body 40 from the positioning component 30. In the single first pick-up and drop-off station 91 mode, the pick-up and drop-off actions are performed sequentially at the same position. An external mechanism can be used to complete the pick-up and drop-off operations synchronously within one work cycle, thereby shortening the downtime of the turntable 10 and improving work efficiency.

[0051] When there are multiple pick-up and drop-off stations, multiple pick-up and drop-off stations (such as...) Figure 2 The first and second pick-and-place stations 91 and 92 can be configured to perform pick-and-place and place-and-place operations independently, respectively. For example, the first and second pick-and-place stations 91 and 92 can be set sequentially along the rotation direction of the turntable 10. The first pick-and-place station 91 is dedicated to place-and-place operations, and the second pick-and-place station 92 is dedicated to pick-and-place operations. The unloaded positioning component 30 first flows to the first pick-and-place station 91, the support plate 31 flips to the loading / unloading position, and an external mechanism or manual operation loads the cup 40 to be processed into it. After loading, the cup 40 enters the magnetic polishing area with the turntable 10 to complete the polishing. After processing, the positioning component 30 flows to the second pick-and-place station 92, the support plate 31 flips to the loading / unloading position again, and an external mechanism or manual operation removes the finished cup 40. This separate pick-and-place layout allows two independent automated robotic arms to operate in parallel for the pick-and-place and place-and-place operations, eliminating the time delay of serial operations and improving the overall processing efficiency of the equipment.

[0052] Furthermore, when there are multiple material handling stations, each station can be configured to handle both material handling and unloading of the cup body 40. For example, a first material handling station 91 and a second material handling station 92 can be symmetrically arranged on the outer circumference of the turntable 10. Each station is equipped with an independent loading and unloading mechanism, allowing the two stations to perform simultaneous material handling operations, thus increasing the throughput. This multi-station structure also provides equipment redundancy. If the loading and unloading mechanism of one station malfunctions or requires maintenance, the other station can still maintain reduced-speed operation, improving the overall uptime and reliability of the production line. Through the flexible configuration of the number of material handling stations and operating modes described above, the automation compatibility and process adaptability of the magnetic polishing device 100 are enhanced.

[0053] In some examples, the central axis of the cup body 40 is parallel to or inclined relative to the horizontal plane. The central axis of the cup body 40 is the rotation center line of the cup body 40 during the magnetic polishing process. It coincides with the rotation axis C of the drive shaft 36, ensuring that the cup body 40 remains balanced during rotation and avoiding uneven polishing of the inner cavity due to eccentricity or shaking.

[0054] In one embodiment, the central axis of the cup body 40 is arranged parallel to the horizontal plane, meaning the cup body 40 is horizontally positioned for self-rotation polishing. In this case, the opening of the cup body 40 faces horizontally (radially inward or radially outward), and the polishing medium is distributed horizontally within the inner cavity of the cup body 40. This horizontal positioning is suitable for cases where the length-to-diameter ratio of the cup body 40 is small and the inner cavity depth is shallow. In this case, the influence of gravity on the distribution of the polishing medium is relatively balanced, and the magnetic polishing device 100 can provide a relatively uniform inner wall polishing effect. In another embodiment, the central axis of the cup body 40 is inclined relative to the horizontal plane, meaning the cup body 40 is tilted horizontally for self-rotation polishing, with an inclination angle greater than 0° and less than or equal to 15°. In this case, the opening of the cup body 40 faces obliquely upward or downward. The polishing medium in the inner cavity of the cup body 40 generates an axial component along the inclined direction under the influence of gravity. However, because the inclination angle is small, this component is very weak and insufficient to change the circumferential flow pattern of the polishing medium, which is dominated by centrifugal force. Therefore, limiting the tilt angle to a range of greater than 0° and less than or equal to 15° allows for adaptation to equipment spatial layout, avoidance of surrounding structures, or compensation for posture deviations caused by assembly tolerances. This small tilt angle not only meets the practical needs of mechanical installation and connection but also reduces the impact on polishing uniformity and processing effect caused by excessive tilt angle, thereby improving the flexibility of the overall equipment layout while ensuring process stability. Simultaneously, it enables the magnetic polishing device 100 to optimize the self-rotation polishing posture of cups 40 with different specifications and length-to-diameter ratios, maximizing the contact efficiency between the polishing medium and the inner cavity wall while ensuring the stability of the cup 40's rotation, thus improving the process adaptability and finished product quality of magnetic polishing.

[0055] In some examples, the parameter Figure 2 and Figure 3 As shown, the open end 41 of the cup body 40 faces the radially outward side of the turntable 10. The end of the support plate 31 closest to the center of the turntable 10 (i.e., the open end 41 furthest from the cup body 40) is rotatably connected to the turntable 10 via a pivot shaft 38. When switching from a processing position to a loading / unloading position, the support plate 31 rotates around the pivot shaft 38 along... Figure 3 Flip upwards in the direction indicated by the middle arrow p1 until it is... Figure 6 The cup body 40 is in the vertically upright position shown. At this time, the cup body 40 rotates synchronously with the support plate 31, and its open end 41 changes from being horizontal and facing radially outward to being vertically upward, so as to facilitate material loading and unloading operations by external mechanisms or personnel. Conversely, when switching from the loading / unloading position back to the processing position, the support plate 31 rotates downward in the opposite direction of arrow p1 to reset, so that the cup body 40 returns to the horizontally lying position, and the open end 41 faces radially outward of the turntable 10 again.

[0056] like Figure 13 and Figure 14 As shown, in another example, the open end 41 of the cup body 40 faces the radially inward side of the turntable 10. The end of the support plate 31 near the outer edge of the turntable 10 (i.e., away from the open end 41 of the cup body 40) is rotatably connected to the turntable 10 via a pivot 38. Unlike the previous embodiment, the turntable 10 has a radially extending work station groove 12, the position of which corresponds to the positioning component 30, and its dimensions are configured to allow the cup body 40 to pass through during the transition of the support plate 31 from the loading / unloading position to the processing position. Specifically, when the support plate 31 is in the loading / unloading position, the cup body 40 is vertically upright with the open end 41 facing upward; when the support plate 31 rotates around the pivot 38... Figure 14 When the cup body 40 is flipped downwards in the direction indicated by the middle arrow p2 (arrow p2 is opposite to arrow p1), it gradually changes from a vertical posture to a horizontal posture and falls into the work station slot 12, eventually reaching the processing position. At this time, the open end 41 of the cup body 40 faces the radial inner side of the turntable 10.

[0057] In some examples, the parameter Figure 3As shown, the magnetic polishing device 100 further includes an annular leak-proof plate 70, disposed along the first central axis 11 between the positioning component 30 and the magnetic power component 50; the annular leak-proof plate 70 is recessed on the side facing the cup body 40 to form an annular groove 71. The annular leak-proof plate 70 is coaxially arranged below the turntable 10, and the side of the annular leak-proof plate 70 facing the cup body 40 is recessed inward to form an annular groove 71 extending circumferentially around the first central axis 11. The opening of the annular groove 71 faces the cup body 40, and its radial width and depth are designed to be adapted to the size of the cup body 40 or the positioning component 30, and are usually larger than the cup body 40. The annular groove 71 can intercept and temporarily store accidentally leaked polishing media, preventing it from dripping or splashing directly onto the magnetic power component 50 below. The circumferential extension structure of the annular groove 71 ensures that no matter what angle the cup body 40 rotates to, its outer periphery is within the protection range of the annular groove 71, achieving full circumferential leak-proof protection. It effectively prevents contaminants such as polishing media and abrasives from entering the interior of the magnetic power component 50 and causing damage.

[0058] In some examples, the parameter Figure 9 As shown, in the example where the transmission assembly 60 is driven by direct friction between multiple friction rollers 63 and the outer wall of the cup body 40, the friction rollers 63 and their end supports 64 (such as bushings) can be accommodated in the annular groove 71 and connected to the annular anti-leakage plate 70. In the embodiment where multiple friction rollers 63 drive the cup body 40 to rotate, each friction roller 63 is fixed at both ends by the support 64, which supports the rotation of the friction roller 63. The annular groove 71 formed by the recess on the side of the annular anti-leakage plate 70 facing the cup body 40 serves not only as a space for collecting polishing media and abrasives, but also as a mounting base for the friction rollers 63 and their support 64. The roller body of the friction roller 63 and the end supports 64 are integrally accommodated inside the cavity of the annular groove 71, and the support 64 are fixedly connected to the side wall of the annular groove 71 by bolts, welding, or snap-fitting. A chip removal gap is left between the friction rollers 63 and the support 64 and the bottom surface of the annular groove 71. The friction roller 63 and its support 64 are embedded in the annular groove 71, making the overall structure of the transmission assembly 60 more compact. This makes full use of the axial gap between the positioning assembly 30 and the magnetic power assembly 50, avoiding the transmission components from protruding outwards and occupying extra space or causing interference risks.

[0059] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A magnetic polishing device, characterized in that, include: A turntable with a first central axis; A first driving device is used to drive the turntable to rotate around the first central axis; Several positioning components are arranged circumferentially on the turntable, and the positioning components are used to load the cup body and are rotatably connected to the cup body. A magnetic power assembly includes at least one magnetic power source, which is disposed corresponding to the positioning assembly, with the side of the magnetic power source that forms a magnetic field facing the cup body; A transmission component, in transmission cooperation with the positioning component or the cup body, drives the cup body to rotate relative to the positioning component when the turntable rotates about the first central axis.

2. The magnetic polishing device according to claim 1, characterized in that, The transmission assembly includes an annular transmission disk coaxially fixed below the turntable, and driven wheels connected one-to-one with the positioning assembly. The positioning component has a drive shaft for supporting the cup body, and the driven wheel is coaxially and fixedly connected to the drive shaft; When the turntable rotates around the first central axis, the driven wheel engages with the annular transmission disc to rotate around its own axis, thereby driving the cup body to rotate via the transmission shaft.

3. The magnetic polishing device according to claim 2, characterized in that, The annular transmission disk is configured as an annular gear disk, and the driven wheel is configured as a gear, which meshes with the annular gear disk.

4. The magnetic polishing device according to claim 2, characterized in that, The annular transmission disc is configured as an annular friction disc, the driven wheel is a roller, and the outer circumferential surface of the roller abuts against the annular friction disc.

5. The magnetic polishing device according to claim 1, characterized in that, The transmission assembly includes: a plurality of friction rollers evenly distributed along the circumference; The plurality of friction rollers are disposed below the positioning assembly along the first central axis. The friction rollers are configured to abut against the outer wall of the cup body so that when the turntable rotates about the first central axis, the cup body is driven to rotate by friction against the outer wall of the cup body.

6. The magnetic polishing device according to claim 2, characterized in that, The positioning component includes: Support plate, configured on the turntable; The first support block and the linear drive unit are arranged radially opposite to each other on both sides of the support plate; The drive shaft passes through the first support block and is rotatably connected to the first support block; A first abutment block, the first abutment block being connected to the drive shaft; and The second abutment is rotatably connected to the telescopic shaft of the linear drive unit; The cup body is rotatably held between the first abutment block and the second abutment block.

7. The magnetic polishing device according to claim 6, characterized in that, The support plate is rotatably connected to the turntable via a pivot shaft; The support plate is configured to flip and switch between loading / unloading positions and processing positions about the pivot axis; In the processing position, the support plate is horizontally flattened or inclined relative to the horizontal plane, while the opening of the cup body faces the radially outer or radially inner side of the turntable; When the material is loaded or unloaded, the support plate is in a vertical position or is inclined relative to the vertical direction, and the opening of the cup body faces upward.

8. The magnetic polishing device according to claim 7, characterized in that, The magnetic polishing device has at least one material handling station along the outer circumference of the turntable; The positioning component is configured such that when the turntable rotates to the material loading / unloading station, the support plate switches to the loading / unloading position. When the number of material handling stations is one, the material handling station is configured to handle material handling and dispensing operations for the cup body; When there are multiple material handling stations, the multiple material handling stations are configured to independently perform material handling and material dispensing operations on the cup body, or each of the material handling stations is used for material handling and material dispensing operations on the cup body.

9. The magnetic polishing device according to claim 1, characterized in that, The central axis of the cup is parallel to or inclined relative to the horizontal plane.

10. The magnetic polishing device according to claim 1, characterized in that, The magnetic polishing device further includes: an annular anti-leakage plate, which is disposed between the positioning component and the magnetic power component along the first central axis; the annular anti-leakage plate is recessed on one side facing the cup body to form an annular groove.

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