A magnetic field assisted intelligent polishing device and method using a stereomaglev rotating magnetic field

Abstract

The application relates to a magnetic field assisted polishing technology, and particularly discloses a magnetic field assisted intelligent polishing device and method using a three-dimensional magic ring rotating magnetic field, and belongs to the polishing technical field.The device comprises a box body, a mechanical arm, a base, a polishing main body device, a medium circulation device, a control platform, a workpiece and a clamp, the polishing main body device comprises a magnetic field generating device, a magnetic pole base, an axial magnetic field vibration mechanism, a three-phase asynchronous motor, a transmission mechanism, a hollow rotating shaft and a magnetic pole isolation plate.The magnetic poles in the magnetic field generating device are magnetized in different directions to realize different coupling magnetic fields in the polishing area; the medium circulation device has the functions of a feedback control flow adjusting regulator and a temperature adjusting device, and can realize accurate control of the flow of the nozzle and the temperature of the polishing medium in the polishing area; in combination with the rotation and periodic vibration of the magnetic field generating device and the high-speed rotation and multi-degree-of-freedom control of the workpiece, efficient intelligent polishing of workpieces with different feature types can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to magnetic field assisted polishing technology, and particularly provides a magnetic field assisted intelligent polishing device and method using a three-dimensional magic ring rotating magnetic field. BACKGROUND

[0002] With the rapid development of high-tech industries such as aviation, aerospace, biological medicine, rail transit, precision machinery, etc., the processing quality of the constituent parts is required to be more stringent. Polishing as the final link of part processing determines the final processing quality of the parts. At present, the magnetic field assisted polishing technology is widely used in the polishing of ultra-precision constraint parts and complex structure constraint parts due to the self-adaptability and controllability of the free abrasive. The main technologies include magnetic force grinding, magnetorheological polishing, magnetic jet flow polishing, magnetic floating body polishing, and magnetic shear thickening polishing. However, the existing magnetic field assisted polishing system is usually simply modified on a lathe, milling machine, machining center or grinder / polisher, and has no monitoring, feedback and self-adaptive adjustment function, resulting in a relatively low degree of automation of the polishing system. The polishing area always has a magnetic field, and the polishing medium is easy to bond in the polishing area, resulting in poor flowability of the polishing medium and difficulty in recycling, which is difficult to meet the green manufacturing concept. At the same time, due to the easy bonding of the polishing medium in the polishing area, the temperature of the polishing area rises, which deteriorates the processing quality of the parts. Therefore, it is of important theoretical significance and practical application value to develop an intelligent magnetic field assisted intelligent polishing device and method with easy recycling of polishing medium. The present application provides a magnetic field assisted intelligent polishing device and method using a three-dimensional magic ring rotating magnetic field, which realizes intelligent polishing by providing magnetic field vibration, monitoring feedback and adjusting medium flow rate and temperature, and combining rotation and vibration of the magnetic field. SUMMARY

[0003] The present application provides a magnetic field assisted intelligent polishing device and method using a three-dimensional magic ring rotating magnetic field, which realizes intelligent polishing by integrating a polishing main device, a mechanical arm, a medium recycling device, an axial magnetic field vibration mechanism, a control platform, using high-performance polishing medium, introducing axial controllable periodic vibration of magnetic poles, combining a rotating magnetic field, monitoring feedback and adjusting medium flow rate and temperature.

[0004] The technical scheme of the magnetic field assisted intelligent polishing device and method using the stereomagic ring rotating magnetic field provided by the application is as follows: the device comprises a box body, a mechanical arm, a base, a polishing main body device, a medium circulation device, a control platform, a workpiece and a clamp, the polishing main body device comprises a magnetic field generating device, a magnetic pole base, an axial magnetic field vibration mechanism, a three-phase asynchronous motor, a transmission mechanism, a hollow rotating shaft and a magnetic pole isolation plate, the magnetic field generating device is spaced from the magnetic pole isolation plate and is fixed on the magnetic pole base, the magnetic pole base is fixed on the hollow rotating shaft, the three-phase asynchronous motor drives the hollow rotating shaft to rotate through the transmission mechanism, and the axial magnetic field vibration mechanism comprises a vibration disc, a linear motor, a guide rail sliding block, a lead screw, a support frame, a vibration transmission rod, a rubber wheel and a support column, the medium circulation device comprises a spray head, a polishing disc, a flow regulator, a flow meter, an oil tank, a micro pump, a plunger pump, a hydraulic pump mounting rack, a liquid storage tank, a pipeline, a temperature adjusting device and a pipeline temperature sensor, the polishing main body device and the medium circulation device are installed on the box body and integrated on the control platform, the control platform, the box body and the mechanical arm are fixed on the base, and the workpiece is fixedly connected to the end of the mechanical arm through the clamp.

[0005] The application has the following beneficial effects: 1. The device and method can realize accurate control of the flow of the spray head and the temperature of the polishing medium in the polishing area through feedback control of the flow regulator and the temperature adjusting device by the control platform. 2. The device and method can control the distance between the magnetic pole base and the magnetic pole isolation plate, thereby controlling the magnetic field strength in the processing area, and avoiding the adhesion of the polishing medium due to the existence of the magnetic field in the polishing area. 3. The magnetic poles are magnetized in different directions, different coupling magnetic fields can be formed in the polishing area, and the appropriate magnetization direction of the magnetic poles can be selected according to the surface shape of the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 It is the overall structure schematic diagram of the device and method.

[0007] Figure 2 It is the structure schematic diagram of the polishing main body device of the device and method.

[0008] Figure 3 It is the structure schematic diagram of the axial magnetic field vibration mechanism of the device and method.

[0009] Figure 4It is a medium circulating device structure schematic diagram of a magnetic field assisted intelligent polishing device and method using a three-dimensional magic ring rotating magnetic field.

[0010] Figure 5 It is a magnetic pole arrangement schematic diagram of a magnetic field assisted intelligent polishing device and method using a three-dimensional magic ring rotating magnetic field. DETAILED DESCRIPTION

[0011] DETAILED DESCRIPTION Figure 1 , Figure 2 , Figure 3 and Figure 4 The device includes a box body (1-1), a mechanical arm (1-2), a base (1-3), a polishing main body device (1-4), a medium circulating device (1-5), a control platform (1-6), a workpiece (1-7), and a clamp (1-8). The polishing main body device (1-4) includes a magnetic field generating device (2-1), a magnetic pole base (2-2), an axial magnetic field vibration mechanism (2-3), a three-phase asynchronous motor (2-4), a transmission mechanism (2-5), a hollow rotating shaft (2-6), and a magnetic pole isolation plate (2-7). The magnetic field generating device (2-1) is spaced apart from the magnetic pole isolation plate (2-7) and fixed on the magnetic pole base (2-2). The magnetic pole base (2-2) is fixed on the hollow rotating shaft (2-6). The three-phase asynchronous motor (2-4) drives the hollow rotating shaft (2-6) to rotate through the transmission mechanism (2-5). The axial magnetic field vibration mechanism (2-3) includes a vibration disc (3-1), a linear motor (3-2), a guide rail slider (3-3), a lead screw (3-4), a support frame (3-5), a vibration transmission rod (3-6), a rubber wheel (3-7), and a support column (3-8). The medium circulating device (1-5) includes a spray head (4-1), a polishing disc (4-2), a flow regulator (4-3), a flow meter (4-4), an oil tank (4-5), a micro pump (4-6), a plunger pump (4-7), a hydraulic pump mounting bracket (4-8), a liquid storage tank (4-9), a pipeline (4-10), a temperature adjusting device (4-11), and a pipeline temperature sensor (4-12). The polishing main body device (1-4) and the medium circulating device (1-5) are installed in the box body (1-1) and integrated in the control platform (1-6). The control platform (1-6), the box body (1-1), and the mechanical arm (1-2) are fixed on the base (1-3). The workpiece (1-7) is fixedly connected to the end of the mechanical arm (1-2) through the clamp (1-8).

[0012] DETAILED DESCRIPTION Figure 1 , Figure 2 , Figure 3 and Figure 4The axial magnetic field vibration mechanism (2-3) comprises a vibration disc (3-1), a linear motor (3-2), a guide rail slider (3-3), a lead screw (3-4), a support frame (3-5), a vibration transmission rod (3-6), a rubber wheel (3-7), and a support column (3-8). The linear motor (3-2) is fixed on the box body (1-1). The guide rail slider (3-3) is installed on the lead screw (3-4) of the linear motor (3-2). The support frame (3-5) is fixed on the guide rail slider (3-3). The upper end of the support column (3-8) is connected with the magnetic pole base (2-2), and the lower end of the support column (3-8) is connected with the vibration disc (3-1). The lower end of the vibration transmission rod (3-6) is welded with the support frame (3-5), and the upper end is installed with the rubber wheel (3-7). The side surface of the rubber wheel (3-7) is in contact with the vibration disc (3-1).

[0013] Specific embodiment three: in combination Figure 1 , Figure 2 , Figure 3 and Figure 4 The medium circulating device (1-5) comprises a spray head (4-1), a polishing disc (4-2), a flow regulator (4-3), a flow meter (4-4), an oil tank (4-5), a micro pump (4-6), a plunger pump (4-7), a hydraulic pump mounting rack (4-8), a liquid storage tank (4-9), a pipeline (4-10), a temperature adjusting device (4-11), and a pipeline temperature sensor (4-12). The temperature adjusting device (4-11) is fixed in the liquid storage tank (4-9). The hydraulic pump mounting rack (4-8) is fixed on the box body (1-1). The plunger pump (4-7) is installed on the hydraulic pump mounting rack (4-8). The polishing disc (4-2) and the liquid storage tank (4-9) are fixed on the box body (1-1) by cementing. The flow regulator (4-3), the flow meter (4-4), and the pipeline temperature sensor (4-12) are installed on the pipeline. The spray head (4-1) is installed at the end of the pipeline and is 2 mm higher than the magnetic pole isolation plate (2-7).

[0014] Specific embodiment four: in combination Figure 1 , Figure 2 , Figure 3 and Figure 4 The transmission structure controls the output motion mode of the linear motor (3-2) and the three-phase asynchronous motor (2-5) through the control platform (1-6), so as to realize the rotation of the hollow rotating shaft (2-6) and the up-down reciprocating movement of the magnetic field generating device (2-1).

[0015] Specific embodiment five: in combination Figure 1 , Figure 2 , Figure 3 and Figure 4The embodiment controls the flow meter (4-4), the flow regulator (4-3), the pipeline temperature sensor (4-12) and the temperature regulating device (4-11) through the control platform (1-6) to realize the precise control of the flow of the nozzle (4-1) and the temperature of the polishing medium in the polishing area. The distance between the magnetic pole base (2-2) and the magnetic pole isolation plate (2-7) is controlled, and then the magnetic field strength in the processing area is controlled. When the magnetic pole base (2-2) is away from the magnetic pole isolation plate (2-7), the magnetic field strength in the processing area is weakened, and the holding force of the magnetic field on the polishing medium is reduced, and the circulation of the polishing medium is accelerated.

[0016] Specific implementation method six: in combination Figure 5 It is explained that the magnetic poles in the magnetic field generating device (2-1) are magnetized in different directions, different coupling magnetic fields can be formed in the polishing area, and suitable magnetic pole magnetization directions can be selected according to different surface shapes of the workpiece to be processed.

[0017] Specific implementation method seven: in combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 It is explained that the finishing step of the embodiment is as follows by using any one of the specific implementation methods one, two, three, four, five or six:

[0018] (1) The workpiece (1-7) is fixedly connected to the end of the mechanical arm (1-2) through the clamp (1-8);

[0019] (2) The magnetic poles in the magnetic field generating device (2-1) are magnetized in different directions to form a polishing area on the polishing disc (4-2);

[0020] (3) The control platform (1-6) controls the mechanical arm (1-2) to adjust the workpiece (1-7) to the polishing area;

[0021] (4) The polishing medium is added to the liquid storage tank (4-9), the medium circulation device (1-5) is controlled to work by the control platform (1-6), the polishing medium is circulated, the flow meter (4-4) and the pipeline temperature sensor (4-12) are started to monitor the flow and temperature, and the temperature and flow are adjusted by the temperature regulating device (4-11) and the flow regulator (4-3);

[0022] (5) The control platform (1-6) controls the three-phase asynchronous motor (2-5) to act, drives the hollow rotating shaft (2-6) to drive the magnetic field generating device (2-1) to rotate;

[0023] (6) The control platform (1-6) controls the linear motor (3-2) to act to realize the periodic vibration of the magnetic field generating device (2-1) by reciprocating feed motion;

[0024] (7) Adjust the pose of the mechanical arm (1-2) to realize high-speed rotation and multi-degree-of-freedom control of the workpiece (1-7);

[0025] (8) Adjust the flow of the spray head (4-1) and the temperature of the polishing medium in the polishing area through feedback, combined with the rotation and periodic vibration of the magnetic field generating device (2-1) and the high-speed rotation and multi-degree-of-freedom control of the workpiece (1-7), to realize efficient intelligent polishing of different feature type workpieces (1-7).

Claims

1. A magnetic field-assisted intelligent polishing device utilizing a three-dimensional rotating magnetic field of a magic ring, characterized in that: The device comprises a box (1-1), a mechanical arm (1-2), a base (1-3), a polishing main body device (1-4), a medium circulation device (1-5), a control platform (1-6), a workpiece (1-7) and a clamp (1-8), the polishing main body device (1-4) comprises a magnetic field generating device (2-1), a magnetic pole base (2-2), an axial magnetic field vibration mechanism (2-3), a three-phase asynchronous motor (2-4), a transmission mechanism (2-5), a hollow rotating shaft (2-6) and a magnetic pole isolation plate (2-7), the magnetic field generating device (2-1) is spaced from the magnetic pole isolation plate (2-7) and is fixed on the magnetic pole base (2-2), the magnetic pole base (2-2) is fixed on the hollow rotating shaft (2-6), the three-phase asynchronous motor (2-4) drives the hollow rotating shaft (2-6) to rotate through the transmission mechanism (2-5), the axial magnetic field vibration mechanism (2-3) comprises a vibration disc (3-1), a linear motor (3-2), a guide rail sliding block (3-3), a lead screw (3-4), a support frame (3-5), a vibration transmission rod (3-6), a rubber wheel (3-7), a support column (3-8), the medium circulation device (1-5) comprises a spray head (4-1), a polishing disc (4-2), a flow regulator (4-3), a flowmeter (4-4), an oil tank (4-5), a micro pump (4-6), a plunger pump (4-7), a hydraulic pump mounting rack (4-8), a liquid storage tank (4-9), a pipeline (4-10), a temperature adjusting device (4-11), a pipeline temperature sensor (4-12), the polishing main body device (1-4) and the medium circulation device (1-5) are installed on the box (1-1) and integrated on the control platform (1-6), the control platform (1-6), the box (1-1) and the mechanical arm (1-2) are fixed on the base (1-3), and the workpiece (1-7) is fixedly connected to the end of the mechanical arm (1-2) through the clamp (1-8); the linear motor (3-2) is fixed on the box (1-1), the guide rail sliding block (3-3) is installed on the lead screw of the linear motor (3-2), the support frame (3-5) is fixed on the guide rail sliding block (3-3), the upper end of the support column (3-8) is connected with the magnetic pole base (2-2), the lower end of the support column (3-8) is connected with the vibration disc (3-1), the lower end of the vibration transmission rod (3-6) is welded with the support frame (3-5), the upper end is provided with the rubber wheel (3-7), and the side surface of the rubber wheel (3-7) is in contact with the vibration disc (3-1).The hydraulic pump mounting frame (4-8) is fixed on the box (1-1), the plunger pump (4-7) is mounted on the hydraulic pump mounting frame (4-8), the polishing disc (4-2) and the liquid storage tank (4-9) are fixed on the box (1-1) by cementing, the temperature adjusting device (4-11) is fixed in the liquid storage tank (4-9), the flow regulator (4-3), the flow meter (4-4) and the pipeline temperature sensor (4-12) are installed on the pipeline, the spray head (4-1) is installed at the end of the pipeline and is 2 mm higher than the magnetic pole isolation plate (2-7).

2. The polishing method of claim 1, wherein the magnetic field assisted intelligent polishing device is a polishing device using a stereomagnetic ring rotating magnetic field. The method is realized by the following steps: S1. The workpiece (1-7) is fixedly connected to the end of the mechanical arm (1-2) through the clamp (1-8); S2. The magnetic poles in the magnetic field generating device (2-1) are magnetized in different directions to form a polishing area on the polishing disc (4-2); S3. The control platform (1-6) controls the mechanical arm (1-2) to adjust the workpiece (1-7) to the polishing area; S4. The polishing medium is added to the storage tank (4-9), and the control platform (1-6) controls the medium circulating device (1-5) to work, so that the polishing medium circulates, and the flow meter (4-4) and the pipeline temperature sensor (4-12) are started to monitor the flow and temperature, and the temperature and flow of the polishing liquid are adjusted through the temperature adjusting device (4-11) and the flow regulator (4-3); S5. The control platform (1-6) controls the three-phase asynchronous motor (2-4) to act, drives the hollow rotating shaft (2-6) to drive the magnetic field generating device (2-1) to rotate; S6. The control platform (1-6) controls the linear motor (3-2) to act to realize the periodic vibration of the magnetic field generating device (2-1) by reciprocating feed motion; S7. Adjust the pose of the mechanical arm (1-2) to realize high-speed rotation and multi-degree-of-freedom control of the workpiece (1-7); S8. Adjust the flow of the nozzle (4-1) and the temperature of the polishing medium in the polishing area through feedback, and combine the rotation and periodic vibration of the magnetic field generating device (2-1) and the high-speed rotation and multi-degree-of-freedom control of the workpiece (1-7) to realize efficient and intelligent polishing of workpieces (1-7) of different feature types.

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