Magnetic floating polishing device

Abstract

The utility model discloses a magnetic floating polishing device, and belongs to the technical field of polishing devices. A magnetic floating polishing device comprises a cylinder and a polishing disc, and further comprises a permanent magnet installed in the cylinder, the bottom of the permanent magnet is fixedly connected with a fixing rod, the fixing rod is slidably connected with the cylinder, and the lower end of the fixing rod extends out of the bottom of the cylinder and is connected with the polishing disc; the first electromagnetic coil is fixedly connected to the bottom of the inner wall of the barrel, a second electromagnetic coil is installed in the barrel and located above the permanent magnet, and the polarity of the first electromagnetic coil and the polarity of the second electromagnetic coil are opposite to the polarity of the permanent magnet; the position of the second electromagnetic coil or the current of the first electromagnetic coil or the second electromagnetic coil is changed, so that the repulsive force between the electromagnetic coils and the permanent magnet is changed, the relative distance between the grinding disc and a workpiece is changed, the grinding force is adjusted, the structure is simple, the cost is low, and the grinding effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polishing device technical field especially relates to a magnetic force floating polishing device. BACKGROUND

[0002] Metal casting is a metal product produced by casting process, casting is to heat the metal to the molten state, then pour into the mold prepared in advance, after cooling and solidification get the required shape and size process, casting is an important method of manufacturing metal parts, widely used in machinery, automobile, aviation, energy, building and many other industries.

[0003] Metal casting processing will involve polishing process, most of the factories still use manual polishing, a small part uses the mechanical arm to polish.

[0004] And the mechanical arm polishing all less consider polishing disc force control problem, using constant force polishing will make the workpiece need to polish part over polishing or polishing not in place, polishing effect is not ideal, while the ordinary force control device volume is bigger, cost is higher. INNOVATION CONTENT

[0005] The utility model discloses a magnetic force floating polishing device, which solves the problems of over polishing or insufficient polishing of the workpiece, poor polishing effect, large volume and high cost of ordinary force control device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A kind of magnetic force floating polishing device, including cylinder and polishing disc, further comprising: permanent magnet, installation in the inside of the cylinder, wherein the bottom of the permanent magnet is fixedly connected with fixed rod, the fixed rod is slidably connected with cylinder, the lower end of the fixed rod extends the bottom of cylinder and is connected with polishing disc;First electromagnetic coil fixedly connected in the inner wall bottom of the cylinder, wherein the second electromagnetic coil is installed in the inside of the cylinder and above the permanent magnet, the first electromagnetic coil and the second electromagnetic coil are all opposite to the polarity of permanent magnet.

[0008] In order to drive the second electromagnetic coil to lift to adjust polishing force, preferably, the top of the cylinder is fixedly connected with air cylinder, the telescopic end of the air cylinder is fixedly connected with fixed plate, the fixed plate is slidably installed in the inside of cylinder, the second electromagnetic coil is fixedly connected in the bottom of fixed plate, the top of the fixed plate is fixedly connected with guide rod, the guide rod is slidably connected with cylinder.

[0009] In order to be able to accurately obtain the magnetic force, preferably, the bottom of the second electromagnetic coil is installed with distance measuring module.

[0010] In order to drive the polishing wheel to rotate, preferably, the lower end of the fixed rod is fixedly connected with a mounting frame, a motor is fixedly connected on the mounting frame, an output end of the motor is fixedly connected with a rotating shaft, and the polishing disc is fixedly connected with the rotating shaft.

[0011] In order to improve the stability during polishing, further, the bottom of the cylinder body is fixedly connected with a supporting rod, and the mounting frame is slidingly connected with the supporting rod.

[0012] In order to connect the device with other equipment, preferably, the outer wall of the cylinder body is fixedly connected with an ear plate, and a threaded hole is formed in the ear plate.

[0013] Compared with the prior art, the magnetic floating polishing device has the following beneficial effects:

[0014] 1. The magnetic floating polishing device adjusts the current size of the first electromagnetic coil and the second electromagnetic coil, changes the repulsive force between the first electromagnetic coil, the second electromagnetic coil and the permanent magnet, causes the permanent magnet to drive the polishing disc to move upwards or downwards, and then causes the relative distance between the polishing disc and the workpiece to change to adjust the polishing force, so that the structure is simple, the cost is low, the polishing effect is improved for the enterprise using the mechanical arm, and the production cost is greatly reduced.

[0015] 2. The magnetic floating polishing device drives the second electromagnetic coil to move up and down through the starting of the cylinder, changes the distance between the second electromagnetic coil and the permanent magnet, changes the repulsive force between the second electromagnetic coil and the permanent magnet connected with the polishing disc from the distance, thereby adjusting the polishing force, meeting the demand of different regions of the workpiece for different polishing forces, and ensuring the stability and accuracy in the polishing process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a kind of shaft measurement structure schematic diagram of magnetic floating polishing device proposed by the utility model;

[0017] Figure 2 The utility model provides a kind of cylinder cut structure schematic diagram of magnetic floating polishing device proposed by the utility model Figure One ;

[0018] Figure 3 The utility model provides a kind of cylinder cut structure schematic diagram of magnetic floating polishing device proposed by the utility model Figure Two ;

[0019] Figure 4 The utility model provides a kind of system structure schematic diagram of magnetic floating polishing device proposed by the utility model.

[0020] In the figure: 1, cylinder; 201, permanent magnet; 202, fixed rod; 301, first electromagnetic coil; 302, second electromagnetic coil; 4, polishing disc; 5, air cylinder; 6, fixed plate; 7, guide rod; 8, distance measuring module; 9, mounting frame; 10, motor; 11, rotating shaft; 12, support rod; 13, ear plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] Embodiment:

[0024] With reference to Figures 1-4 The utility model embodiment provides a magnetic force floating polishing device, including cylinder 1 and be used for polishing polishing disc 4, still include: permanent magnet 201, install in the inside of cylinder 1, wherein, the bottom fixed connection of permanent magnet 201 has fixed rod 202, fixed rod 202 and cylinder 1 slidingly connected, fixed rod 202 vertically sets up, and the lower end of fixed rod 202 stretches out the bottom of cylinder 1 and is connected with polishing disc 4, the first electromagnetic coil 301 of fixed connection in the inner wall bottom of cylinder 1, wherein, in the inside of cylinder 1 and be installed with the second electromagnetic coil 302 in the upper of permanent magnet 201, the first electromagnetic coil 301 and second electromagnetic coil 302 all with the polarity opposite of permanent magnet 201, and the first electromagnetic coil 301 and second electromagnetic coil 302 and permanent magnet 201 exist repulsion, through the adjustment of the current size in the first electromagnetic coil 301 and second electromagnetic coil 302, change the repulsion between the first electromagnetic coil 301 and second electromagnetic coil 302 and permanent magnet 201, and then cause permanent magnet 201 to drive polishing disc 4 to move upwards or downwards, and then cause the relative distance change of polishing disc 4 and workpiece, in the initial state, the specific same between the first electromagnetic coil 301 and second electromagnetic coil 302 and permanent magnet 201.

[0025] In operation, by increasing the current in the second electromagnetic coil 302 or reducing the current in the first electromagnetic coil 301, the repulsion of the second electromagnetic coil 302 to the permanent magnet 201 is increased, and the repulsion of the first electromagnetic coil 301 to the permanent magnet 201 is reduced, so that the permanent magnet 201 drives the polishing disc 4 to move downward through the fixed rod 202, and the force acting on the workpiece is increased. Conversely, at a position where the workpiece needs a smaller polishing force, the current of the second electromagnetic coil 302 is reduced or the current of the first electromagnetic coil 301 is increased, the repulsion of the second electromagnetic coil 302 to the permanent magnet 201 is reduced, and the repulsion of the first electromagnetic coil 301 to the permanent magnet 201 is increased, so that the permanent magnet 201 drives the polishing disc 4 to move upward, and the force acting on the workpiece is reduced. This method is suitable for the case where the relative distance between the polishing disc 4 and the workpiece is small, the structure is simple, the cost is low, and for enterprises using mechanical arms for polishing, it undoubtedly improves the polishing effect while greatly reducing production costs.

[0026] The top of the cylinder body 1 is fixedly connected with a gas cylinder 5, the telescopic end of the gas cylinder 5 is fixedly connected with a fixed plate 6, the fixed plate 6 is slidingly installed in the inside of the cylinder body 1, the second electromagnetic coil 302 is fixedly connected to the bottom of the fixed plate 6, the top of the fixed plate 6 is fixedly connected with a vertical guide rod 7, the guide rod 7 is used to support the fixed plate 6, the guide rod 7 is slidingly connected with the cylinder body 1, and the bottom of the second electromagnetic coil 302 is installed with a distance measuring module 8. The distance measuring module 8 is used to measure the distance between the second electromagnetic coil 302 and the permanent magnet 201, and outputs the magnetic force according to the distance, maintains the stability of the magnetic force, and further maintains the stability of the polishing force. When the polishing disc 4 needs a larger displacement, the telescopic end of the gas cylinder 5 is controlled to extend or retract, thereby driving the second electromagnetic coil 302 to move up and down, changing the distance between the second electromagnetic coil 302 and the permanent magnet 201, and further causing the relative distance between the polishing disc 4 and the workpiece to change, thereby meeting the demand for different polishing forces of the polishing disc 4 in different areas of the workpiece. This method is suitable for the case where the relative distance between the polishing disc 4 and the workpiece is large.

[0027] In operation, the gas cylinder 5 is started, the telescopic end drives the fixed plate 6 to slide along the inner wall of the cylinder body 1 longitudinally, the fixed plate 6 drives the second electromagnetic coil 302 to move up and down, the distance between the second electromagnetic coil 302 and the permanent magnet 201 is changed, the repulsion between the second electromagnetic coil 302 and the permanent magnet 201 connected with the polishing disc 4 is changed from the distance, and the polishing force is adjusted.

[0028] The lower end of the fixed rod 202 is fixedly connected with a mounting rack 9, the mounting rack 9 is fixedly connected with a motor 10, the output end of the motor 10 is fixedly connected with a rotating shaft 11, the rotating shaft 11 is rotationally connected with the mounting rack 9, the polishing disc 4 is fixedly connected with the rotating shaft 11, the bottom of the barrel 1 is fixedly connected with a vertically arranged supporting rod 12 for assisting in supporting the polishing disc 4 and improving the stability of the polishing disc 4 during polishing, the mounting rack 9 is slidingly connected with the supporting rod 12, the outer wall of the barrel 1 is fixedly connected with an ear plate 13, the ear plate 13 is provided with four threaded holes arranged at equal intervals in a ring shape, and the device is connected to related equipment.

[0029] When the required relative distance between the polishing disc 4 and the workpiece is small, the current in the second electromagnetic coil 302 is increased or the current in the first electromagnetic coil 301 is reduced, the repulsion force of the second electromagnetic coil 302 on the permanent magnet 201 is increased, the repulsion force of the first electromagnetic coil 301 on the permanent magnet 201 is reduced, the permanent magnet 201 drives the polishing disc 4 to move downward through the fixed rod 202, and the force acting on the workpiece is increased.

[0030] When the required relative distance between the polishing disc 4 and the workpiece is large, the cylinder 5 is started, the telescopic end drives the fixed plate 6 to slide longitudinally along the inner wall of the barrel 1, the fixed plate 6 drives the second electromagnetic coil 302 to move up and down, the distance between the second electromagnetic coil 302 and the permanent magnet 201 is changed, the repulsion force between the second electromagnetic coil 302 and the permanent magnet 201 connected with the polishing disc 4 is changed from the distance aspect, and the polishing force is adjusted.

[0031] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A magnetic floating polishing device, comprising a cylinder (1) and a polishing disc (4), characterized in that, Also includes: A permanent magnet (201) is installed inside the cylinder (1). Among them, the bottom of the permanent magnet (201) is fixedly connected to a fixing rod (202), the fixing rod (202) is slidably connected to the cylinder (1), and the lower end of the fixing rod (202) extends out of the bottom of the cylinder (1) and is connected to the grinding disc (4); A first electromagnetic coil (301) is fixedly connected to the bottom of the inner wall of the cylinder (1). A second electromagnetic coil (302) is installed inside the cylinder (1) and above the permanent magnet (201). The first electromagnetic coil (301) and the second electromagnetic coil (302) are both opposite in polarity to the permanent magnet (201).

2. The magnetic floating polishing device according to claim 1, characterized in that, A cylinder (5) is fixedly connected to the top of the cylinder (1), and a fixing plate (6) is fixedly connected to the telescopic end of the cylinder (5). The fixing plate (6) is slidably installed inside the cylinder (1). The second electromagnetic coil (302) is fixedly connected to the bottom of the fixing plate (6). A guide rod (7) is fixedly connected to the top of the fixing plate (6), and the guide rod (7) is slidably connected to the cylinder (1).

3. The magnetic floating polishing device according to claim 1, characterized in that, A ranging module (8) is installed at the bottom of the second electromagnetic coil (302).

4. The magnetic floating polishing device according to claim 1, characterized in that, The lower end of the fixed rod (202) is fixedly connected to the mounting bracket (9), the mounting bracket (9) is fixedly connected to the motor (10), the output end of the motor (10) is fixedly connected to the rotating shaft (11), and the grinding disc (4) is fixedly connected to the rotating shaft (11).

5. The magnetic floating polishing device according to claim 4, characterized in that, The bottom of the cylinder (1) is fixedly connected to a support rod (12), and the mounting bracket (9) is slidably connected to the support rod (12).

6. The magnetic floating polishing device according to claim 1, characterized in that, The outer wall of the cylinder (1) is fixedly connected to an ear plate (13), and the ear plate (13) has a threaded hole.

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