CN108673330A - A kind of field rotation type blade liquid metal burnishing device - Google Patents

Abstract

The invention discloses a kind of field rotation type blade liquid metal burnishing devices, including supporting rack, electromagnet, motor, operation console, workbench, negative electrode, fixing device, blade, polishing cavity and polishing container, the operation console, supporting rack and polishing container are installed on workbench, polishing container is internally provided with the polishing cavity for accommodating liquid metal polishing fluid, and blade is fixed on inside polishing container by fixing device and blade is immersed in liquid metal polishing also.The present invention is polished blade by being mixed with the liquid metal polishing fluid of abrasive grain, liquid metal ion is moved under the action of electric field and magnetic field, and then the movement of the abrasive grain in liquid metal polishing fluid is driven, blade surface is processed by abrasive grain, improves processing efficiency.

Description

A magnetic field rotating blade liquid metal polishing device

technical field

The invention relates to the technical field of liquid metal polishing, in particular to a magnetic field rotating blade liquid metal polishing device.

Background technique

Liquid metal usually refers to alloy functional materials that are liquid at room temperature, such as metals and their alloy materials with a melting point below 30°C, and also include low melting point alloy materials that are liquid in the working temperature range of 40°C to 300°C. Liquid metal polishing liquid polishing technology means that when the liquid metal polishing liquid mixed with abrasives moves relative to the polished surface of the workpiece under the action of a magnetic field, the flexible grinding head on the liquid metal polishing liquid ribbon produces a large cutting force on the polished surface, thereby Polish the polished surface of the workpiece.

For the processing of complex curved surfaces, such as the processing of blades, traditional polishing cannot be used. Therefore, methods similar to abrasive flow machining and liquid metal processing have emerged. However, pure liquid metal polishing or abrasive flow processing The efficiency is low, and the processing quality also has certain limitations, and it is highly dependent on the skills of the workers themselves, and the production efficiency is low, the processing cycle is long, and the surface is prone to damage and deterioration. The processing quality is not easy to guarantee , has a great influence on the machined surface.

Contents of the invention

The purpose of the present invention is to solve the problems of low processing efficiency, strong technology dependence and long processing cycle caused by purely using abrasive flow polishing or purely using liquid metal for polishing in the existing technology, and proposes a magnetic field rotating blade liquid metal Polishing device.

The present invention achieves the above object through the following technical solutions: a magnetic field rotating blade liquid metal polishing device, including a support frame, an electromagnet, a motor, an operating table, a working platform, a negative electrode, a fixing device, blades, a polishing chamber and a polishing chamber. The container, the operating table, the support frame and the polishing container are all installed on the working platform, and the polishing container is provided with a polishing cavity containing liquid metal polishing liquid, and the blade is fixed inside the polishing container by a fixing device and the blade is immersed in the liquid metal polishing Also, the negative electrode is installed on the fixing device above the blade, the positive electrode is installed on the bottom plate of the polishing container, and the negative electrode and the positive electrode are both horizontally arranged, and the negative electrode and the positive electrode are parallel to each other; the motor is arranged directly above the polishing container, and the motor Fixed on the support frame, the drive shaft of the motor passes through the support frame to connect the electromagnet arranged under the support frame; The N pole and the S pole of the electromagnet are generated, and the N pole and the S pole of the generated electromagnet are both facing the blades in the polishing container.

Further, the liquid metal polishing liquid is a liquid metal polishing liquid containing abrasive grains.

Further, the liquid metal in the liquid metal polishing liquid is one or more compounds of gallium ions, rubidium ions, and cesium ions. The liquid metal usually refers to alloy functional materials that are liquid at normal temperature, such as metals and their alloy materials with a melting point below 30°C, and also include low melting point alloy materials that are liquid in the working temperature range of 40°C to 300°C. And mixed with abrasive grains.

Further, the positive electrode, the negative electrode and the motor are all electrically connected to the operating table, and the operating table controls the positive electrode and the negative electrode to be energized, and outputs a positive sinusoidal wave current, thereby forming a sine wave electric field between the positive electrode and the negative electrode, and the operating table Then control the motor to start, so that the electromagnet rotates, and a rotating magnetic field is formed in the polishing container. The up and down sine wave electric field formed by the positive electrode and the negative electrode is combined with the rotating magnetic field generated by the electromagnet, so that the liquid metal polishing liquid drives the abrasive particles. Carry out disorderly movement, and then carry out disorderly impact on the polishing area on the blade, so as to achieve the purpose of polishing.

The beneficial effects of the present invention are:

1. In the present invention, the workpiece is polished by metal ions in the polishing metal liquid, and the metal polishing liquid can polish a finer surface, and the obtained polishing precision is higher.

2. The present invention polishes the blades through the liquid metal polishing liquid mixed with abrasive grains, and the liquid metal ions move under the action of electric field and magnetic field, and then drive the movement of the abrasive grains in the liquid metal polishing liquid, and the blades are polished by the abrasive grains. The surface is processed to improve the processing efficiency.

3. The present invention uses the mechanism of the motor to rotate the armature to generate a rotating magnetic field inside the polishing tank, so that the stable electric field generated between the positive electrode and the negative electrode, and the magnetic field between the N pole and the S pole at both ends of the armature change into a non-rotating one. Sequential magnetic field, using the simultaneous action of disordered magnetic field and stable electric field to drive the disordered movement of metal ions in the polishing liquid, and then drive the disordered movement of abrasive particles. The polishing effect of the area.

4. The present invention does not require a specific machine to polish the workpiece, but uses electric and magnetic fields to directly control the liquid metal polishing solution, with simple control methods, simple overall structure, and easy maintenance.

5. In the present invention, an electric field is formed by the positive electrode and a negative electrode, and a magnetic field is formed by two electromagnets. The combination of electric field and magnetic field control can realize polishing of curved surfaces at any angle without dead ends.

Description of drawings

Fig. 1 is an axonometric view of a magnetic field rotating blade liquid metal polishing device of the present invention.

Fig. 2 is a partial sectional structural schematic diagram of the right view of a magnetic field rotating blade liquid metal polishing device of the present invention.

In the figure, 1-support frame, 2-coil, 3-armature, 4-motor, 5-operating platform, 6-working platform, 7-negative electrode, 8-fixing device, 9-blade, 10-polishing chamber, 11-Polishing container, 12-Positive electrode.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

As shown in Figures 1 and 2, a magnetic field rotary blade liquid metal polishing device includes a support frame 1, an electromagnet, a motor 4, an operating table 5, a working platform 6, a negative electrode 7, a fixing device 8, blades 9, The polishing chamber 10, the positive electrode 12 and the polishing container 11, the operating table 5, the support frame 1 and the polishing container 11 are all installed on the working platform 6, and the polishing container 11 is provided with a polishing chamber 10 containing liquid metal polishing liquid , the blade 9 is fixed inside the polishing container 11 by the fixture 8 and the blade 9 is immersed in the liquid metal polishing; the negative electrode 7 is installed on the fixture above the blade, the positive electrode 12 is installed on the bottom plate of the polishing container 11, and the negative Both the electrode 7 and the positive electrode are arranged horizontally, and the negative electrode 7 and the positive electrode are parallel to each other; the motor 4 is arranged directly above the polishing container 11, the motor 4 is fixed on the support frame 1, and the drive shaft of the motor 4 passes through the support frame 1 and is connected to the support The electromagnet under the frame 1; the electromagnet is composed of an armature 3 and a coil 2, and the N pole and the S pole of the electromagnet are respectively generated at the two ends of the armature 3 after the coil 2 is energized, and the armature 3 is in a semicircular arc shape, and the coil 2 The N pole and S pole generated by the electromagnet after electrification, and the N pole and S pole of the generated electromagnet are all facing the blade 9 in the polishing container 11 .

The liquid metal polishing liquid is a liquid metal polishing liquid containing abrasive grains. The liquid metal in the liquid metal polishing liquid is one or more compounds of gallium ions, rubidium ions and cesium ions.

The positive electrode, the negative electrode 7 and the motor 4 are all electrically connected to the console 5, and the console 5 controls the electrification of the positive electrode and the negative electrode 7, and outputs a positive sinusoidal wave current, thereby forming a sine wave between the positive electrode and the negative electrode 7 electric field, the console 5 controls the motor 4 to start again, so that the electromagnet rotates, and a rotating magnetic field is formed in the polishing container 11. The sine wave electric field moving up and down formed by the positive electrode and the negative electrode 7 is combined with the rotating magnetic field produced by the electromagnet. The liquid metal polishing fluid drives the abrasive grains to move in disorder, and then strikes the polishing area on the blade 9 in disorder, so as to achieve the purpose of polishing.

The above-described embodiments are only preferred embodiments of the present invention, and are not limitations to the technical solutions of the present invention. As long as they are technical solutions that can be realized on the basis of the above-mentioned embodiments without creative work, they should be regarded as falling into the scope of the patent of the present invention. within the scope of protection of rights.

Claims (4)

1. A magnetic field rotary blade liquid metal polishing device, characterized in that: comprising support frame (1), electromagnet, motor (4), console (5), work platform (6), negative electrode (7), Fixing device (8), blade (9), polishing cavity (10), positive electrode (12) and polishing container (11), described operating platform (5), supporting frame (1) and polishing container (11) all Installed on the working platform (6), the polishing container (11) is provided with a polishing chamber (10) to accommodate the liquid metal polishing solution, and the blade (9) is fixed inside the polishing container (11) by a fixing device (8) and the blade (9) immersed in liquid metal polishing; the negative electrode (7) is installed on the fixture above the blade, the positive electrode (12) is installed on the bottom plate of the polishing container (11), and the negative electrode (7) and the positive electrode are both Set horizontally, the negative electrode (7) and the positive electrode are parallel to each other; the motor (4) is arranged directly above the polishing container (11), the motor (4) is fixed on the support frame (1), and the drive shaft of the motor (4) passes through The support frame (1) is connected to the electromagnet arranged under the support frame (1); the electromagnet is composed of an armature (3) and a coil (2), and the coil (2) generates electricity at both ends of the armature (3) respectively. The N pole and the S pole of the electromagnet, the armature (3) is in the shape of a semicircle, the N pole and the S pole produced by the electromagnet after the coil (2) is energized, and the N pole and the S pole of the electromagnet are all facing the polishing Blades (9) in container (11). 2 . The magnetic field rotating blade liquid metal polishing device according to claim 1 , wherein the liquid metal polishing liquid is a liquid metal polishing liquid containing abrasive particles. 3 . 3. A magnetic field rotary blade liquid metal polishing device according to claim 2, characterized in that: the liquid metal in the liquid metal polishing liquid is one or more of gallium ions, rubidium ions, and cesium ions compound of. 4. A magnetic field rotary blade liquid metal polishing device according to claim 3, characterized in that: said positive electrode, negative electrode (7) and motor (4) are all electrically connected to the console (5), and the operation The platform (5) controls the positive electrode and the negative electrode (7) to be energized, and outputs a positive sine wave current, thereby forming a sine wave electric field between the positive electrode and the negative electrode (7), and the console (5) then controls the motor (4) to start , so that the electromagnet rotates, a rotating magnetic field is formed in the polishing container (11), and the sine wave electric field moving up and down formed by the positive electrode and the negative electrode (7) is combined with the rotating magnetic field produced by the electromagnet, so that the liquid metal polishing liquid drives The abrasive grains move in disorder, and then impact the polishing area on the blade (9) in disorder, so as to achieve the purpose of polishing.