JPH05154758A - Barrel device - Google Patents

Abstract

PURPOSE:To improve the machining speed by providing rotary motors independently rotating barrel tubs to individually control the grinding pressure and the grinding speed. CONSTITUTION:The grinding pressures of the media in barrel tubs 21-23 are controlled by the control of the rotating speed of a revolving motor 3, and the grinding speeds are controlled by the control of the rotating speeds of rotating motors 41, 42. The machining efficiency can be sharply improved. The barrel tubs 21-23 are rotated by the independent rotating motors 41, 42 respectively, thus the rotating speeds and rotation directions are optionally controlled, and polishing can be performed while the rotation direction is reversed. The optimum grinding control can be performed in response to the material and quantity of the works and media inserted in the barrel tubs 21-23, and the best machining can be performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a barrel device for barrel polishing, plating, mechanical alloying and the like.

[0002]

2. Description of the Related Art Barrel polishing is a process in which a work piece and a polishing stone, a compound and water are put in a barrel tank (water cannot be put in the dry type).
The surface is finished by the friction polishing action by the relative motion difference generated between the workpiece and the polishing stone by charging and rotating the machine. The processing speed could not be sufficiently increased because it could not be sufficiently acted.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to improve the processing speed so that the grinding pressure and the grinding speed for the media in the barrel tank can be controlled separately and freely. Moreover, it aims at expanding the application field so that it can be used for processing other than polishing.

[0004]

The above object is to provide an orbiting body that rotates about an axis and a plurality of barrel tanks that rotate by providing rotating axes on concentric circles around the axis of the orbiting body. In the barrel device provided with the above, it can be achieved by the barrel device characterized in that the grinding pressure and the grinding speed can be individually controlled. In order to individually control the grinding pressure and the grinding speed, it is recommended to provide a rotation motor that independently changes the rotation speed of each barrel tank with respect to the revolution speed of the revolution body at a high response speed. In addition to the above rotation motor, a vibrator for vertically vibrating each barrel tank may be provided. It is recommended that power be supplied to the rotation motor and vibrator of the barrel tank through a rotary transformer.

[0005]

With the above-mentioned structure, according to the present invention, by rotating the revolving body supporting a plurality of barrel tanks, the grinding pressure by the rotating centrifugal force can be applied to the media in the barrel tanks. At the same time, the grinding speed can be controlled by rotating each barrel tank, and the grinding pressure and the grinding speed can be independently and independently controlled, so that the processing speed can be improved. In addition, the rotation of each barrel tank is provided with an independent rotation motor so that an independent rotation speed can be given independently, so the processing conditions of each barrel tank can be changed arbitrarily, and it can be loaded inside. It can be optimally controlled according to the type of workpiece to be processed and the processing conditions such as rough grinding and finish grinding. Further, not only the rotation of each barrel tank but also a vibrator is provided for each barrel tank so that vertical vibration is applied to the barrel tank, so that the charge in the barrel tank can be uniformly processed as a whole. The vertical vibration applied to each barrel tank can also be independently controlled, so that it can be optimally controlled according to the type, size, amount, etc. of the internal medium.
By supplying power to the rotation motor and vibrator of each barrel tank through a rotary transformer, it is possible to perform stable drive control without power loss and abrasion and wear unlike the case of using a brush.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment of the drawings. FIG. 1 is a vertical cross-sectional view of an embodiment of the barrel device according to the present invention, and FIG. 2 is a top view, in which 1 is an orbital disc rotating about an axis, and 21, 22 and 23 are concentric circles of the disc 1. It is a barrel tank that has a rotating shaft on its circumference and rotates about its axis. 3 is a revolution motor for rotating the disk 1, 41 and 42 are rotation motors for rotating the barrel tanks 21 and 22, 5 is a rotary transformer for supplying power to the motors 41 and 42, and 61 and 62 are barrels. A coil that gives vertical vibrations to the tanks 21 and 22, a vibrator such as electrostriction, magnetostriction, etc., to which driving power is applied from the rotary transformer 5. Although not shown, the barrel tank 23 is also provided with a rotation motor and a vibrator similarly to the other barrel tanks.

The barrel tanks 21, 22, and 23 are charged with a workpiece and a medium such as a polishing stone, a compound, and water, and frictional polishing is performed by rotary motion. Rotating centrifugal force acts on each of the barrel tanks 21, 22, and 23 on the revolution disk 1 which is rotated at a high speed by the revolution motor 3. Here, if the rotational energy is a distance r from the center and the mass is m, the moment of inertia of the object is I = Σmr ² and the angular velocity of rotation is ω, the energy E is E = 1/2 Iω ^2, and the media of the barrel tank 21 to 23 by this energy becomes pressed against the tank wall. In this state, the barrel tanks 21 to 23 themselves rotate and relative motion is given to the media inside,
The polishing action is exerted on the medium under the condition that the grinding pressure is applied by the rotational energy. The grinding speed is given by the rotation of the barrel tanks 21 to 23, and the rotation control can be independently performed by the rotation motors 41 and 42. The driving power to each rotation motor 41, 42 is supplied by the rotary transformer 5. The rotary transformer has an advantage that power supply and signal transmission can be performed in a non-contact manner, the transmission efficiency can be improved, and maintenance is unnecessary. Each rotation motor 41, through this rotary transformer 5,
Independent power is supplied to 42, and each rotation motor 41, 42
The switching control of the rotation speed and the rotation direction can be arbitrarily performed.

As described above, the grinding pressure is controlled by controlling the rotation speed of the revolution motor 3 for the media in each barrel tank 21 to 23, and the rotation motor provided in each barrel tank is controlled.
By controlling the rotation speed of 41 and 42, the grinding speed can be controlled and added, which can significantly improve the processing efficiency. Moreover, since each barrel tank is rotated by the independent rotation motors 41 and 42, the rotation speed and the rotation direction can be arbitrarily controlled, and polishing can be performed while reversing the rotation direction. Therefore, optimal grinding control can be performed according to the material and amount of the charged workpieces and media in the barrel tanks 21 to 23, and the best machining can be performed.

Further, as described above, the barrel tanks 21 to 23 are provided with the vibrators 61 and 62, respectively. This vibration control power is also supplied with high efficiency via the rotary transformer 5. By driving the vibrators 61 and 62, vertical vibrations can be applied to the barrel tanks 21 to 23. Therefore, due to this vibration, the medium in the barrel tank is agitated by the vertical vibration, so that the polishing effect can be increased and the whole can be uniformly polished. Further, this vibration control is also independently given to each barrel tank 21 to 23, and arbitrary combination control can be performed by independent rotation speed control and rotation direction switching control.

FIG. 3 shows an embodiment of a control circuit for controlling the revolution, rotation and vibration. A CPU 7 is used as a central control circuit. The CPU 7 uses the input device such as the input keyboard 8 to predict the machining time, how many kinds of machining should be performed, the rotational speed (revolution) in a certain machining, the relationship between the rotation position and the rotational speed (forward / reverse), and others. Enter to store in memory.
Reference numeral 9 is an I / O for signal input and power output, each revolution motor 3 and rotation motors 41, 42 ..., Vibrators 61, 62,
In addition, signals are input / output to / from the encoders 3E, 41E, 42E of each motor shaft.

Rotational position and speed are detected by each encoder, and for example, an encoder 3E coupled to the revolution motor 3 detects points A, B, and C of 120 ° division angle during one revolution of the revolution disk 1. This position signal is detected and I / O
Input to the CPU 7 through. So one barrel tank 21
Rotates counterclockwise at 1000 rpm at point A and at point B
The rotation motor 41 of the barrel tank 21 is rotated through the I / O 9 so that it rotates at 10 rpm and rotates clockwise at 100 rpm at point C.
The rotation control power is output to. The control power is, for example, a PWM pulse, and the speed signal of the encoder 41E is fed back to control the rotation speed. Similarly, CP control of speed control and forward / reverse reversal control of other barrel tanks 42 ...
This is performed according to the memory entered in U7 as a program. Control power is also output to a vibrator 61 that vertically vibrates the barrel tank 41. For example, the amplitude is 0.5 mm at point A, the frequency is 50 Hz, the frequency is 1 mm, 100 Hz at point B, and 0.5 mm, 200 Hz at point C. Vibrations of the other barrel tanks 42 are similarly controlled.

The barrel tanks 21 to 23 can be used not only for charging a workpiece to be barrel-polished, but also for plating or alloying. For example, in order to obtain a magnet TbDyFe, each element is barrel-rolled. It was charged inside and barrel processed in N ₂ gas. In addition, NbBFe was added in N ₂ gas to 8
Processed time. Revolution speed of barrel is 1600r
pm and the rotation (rotation) of each barrel tank is 500 depending on the position.
Switching between rpm, 800 rpm, and 100 rpm, vibration 1
When the barrel processing was performed by switching between mm, 0.5 mm and 0.3 mm, the characteristics of the magnet became about 72 MGO.

The rotational speed switching position, speed, vibration control, etc. can be arbitrarily controlled, and can be controlled arbitrarily by storing in advance a memory. Further, speed control, direction switching, etc. can be controlled at required time intervals, and each of the plurality of barrel tanks can be independently controlled by an arbitrary program. Further, the control circuit is not limited to program control by the CPU, and arbitrary PID control, fuzzy control, AI control, etc. can be arbitrarily performed.

[0014]

As described above, according to the present invention, the revolving body that rotates about the shaft and the plurality of barrel tanks that rotate around the concentric circle of the revolving body are provided. Since a rotary motor that independently rotates each barrel tank is installed so that the grinding speed can be controlled individually, the grinding pressure by rotating centrifugal force can be applied to the media in the barrel tank by the revolution, and the grinding speed by rotation Can be controlled and the grinding pressure and the grinding speed can be separately controlled independently, so that the processing speed can be improved. In addition, independent rotation motors are provided for the rotations of the barrel tanks to provide independent rotation speeds, and the rotation speed and forward / reverse rotation direction switching control can be arbitrarily controlled depending on the revolving position. The processing conditions of each barrel tank can be changed arbitrarily, and it can be optimally controlled according to the type of work to be charged inside and the processing conditions. Not only barrel polishing but also barrel plating, mechanical alloying, etc. The processing can always be optimally controlled.

In addition, by providing not only rotation but also a vibrator in each barrel tank so that vertical vibration can be performed, it is possible to uniformly and uniformly mix the load in the barrel tank. The effect can be enhanced. Further, since the vibration of the barrel tank can be controlled independently, it can be controlled optimally according to the type, size, amount, etc. of the internal medium. Further, since the power supply to the rotation motor and the vibrator of each tank is supplied through the rotary transformer, it is possible to perform extremely stable drive control without wear and wear unlike the case of using a brush and power loss. it can.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an embodiment of a barrel device according to the present invention.

FIG. 2 is a top view thereof.

FIG. 3 is a configuration diagram of a control circuit thereof.

[Explanation of symbols]

 1 Revolution disk 21,22,23 Barrel tank 3 Revolution motor 41,42 Rotation motor 3E, 41E, 42E Encoder 5 Rotary transformer 61,62 Vibrator 7 CPU 8 Input keyboard 9 I / O

Claims (5)

[Claims] 1. An orbiting body (1) rotating about an axis, and a plurality of barrel tanks (21, 22, 23) which are provided with respective rotating axes on concentric circles centering on the rotating axis of the orbiting body. The barrel device is characterized in that the grinding pressure and the grinding speed can be individually controlled. 2. A rotation motor (41, 42) for individually controlling the grinding pressure and the grinding speed so as to independently change the rotation speed of each barrel tank with respect to the revolution speed of the revolution body (1) at a high response speed. , 43) are provided, The barrel apparatus of Claim 1 characterized by the above-mentioned. 3. The barrel device according to claim 2, wherein power is supplied to the rotation motor of the barrel tank through a rotary transformer (5). 4. A rotation motor (41, 42) for independently controlling the rotation speed of each barrel tank with respect to the revolution speed of the revolution body (1) so as to independently control the grinding pressure and the grinding speed at a high response speed. , 43) and a vibrator (61, 62, 63) for vertically vibrating each barrel tank, respectively. The barrel device according to claim 1, further comprising: 5. The barrel device according to claim 4, wherein power is supplied to the rotation motor and the vibrator of the barrel tank through a rotary transformer (5).