JPS6048290B2 - Electrolytic composite polishing equipment - Google Patents

Description

[Detailed Description of the Invention] This invention provides an anodic dissolution action of an object to be polished by electrolysis,
An electrolytic composite polishing device that combines the polishing action of removing the passivated oxide film formed on the surface to be polished with an abrasive material bonded to the surface of an electrode tool to finish polished objects such as stainless steel to a mirror finish. Regarding.

In conventional electrolytic composite polishing equipment, the supply of the electrolytic solution necessary for polishing, the drive source for the electrode tool, and the connection and disconnection of the electrolytic power source are all manually operated, making the work complicated. .

Furthermore, during polishing work, if the electrode of the electrode tool comes to a place where the surface to be polished is particularly rough, the frictional resistance becomes excessive, or if the drive motor becomes overloaded for some reason, the rotation of the electrode tool decreases or stops. Even in that case, because the electrolytic power source remains connected, electrolysis on the surface to be polished opposite to the electrode surface of the electrode tool may proceed abnormally, which may impair the smoothness and gloss of the finished surface. be. In addition, if the supply of electrolyte stops during polishing work due to pump failure or other causes, dry friction may occur, which may have an adverse effect on the polished surface due to heat generation, and may cause dust to be generated during the work. Deterioration of the environment and shortening the life of the abrasive material affixed to the electrode surface of the tool. This invention takes the above points into consideration, and by supplying an electrolytic solution at a predetermined flow rate or higher,
Connecting and disconnecting the rotational drive source of the electrode tool and the power source for electrolysis,
In addition to automating everything, a control unit is provided to centrally control them, making the work easier and dealing with abnormalities such as when the motor stops.Next, this invention will be implemented. This will be explained with reference to drawings showing examples.

In the drawing, A is the polishing part, B is the control part,
The polishing section A will be explained.

1 is an electrode tool, 2 is an electrode of the electrode tool 1, 3 is an abrasive material affixed to a part of the surface of the electrode 2, 4 is a polishing main shaft integrated with the electrode tool 1, and 5 is a drive for driving and rotating the electrode tool 1 motor,
6 is a rotation speed detection device for detecting the rotation speed of the electrode tool 1;
8 is a carbon brush that supplies electrolytic power to the electrode 2 via the polishing spindle 4, and 8 is a carbon brush that opens an electrolyte flow path when the electrode tool 1 is pressed against the surface to be polished 9 with a predetermined force, and when released, the flow path is closed. There is an electrolyte flow path opening/closing device that closes.

Next, the control section B will be explained.

10 is an electrolyte flow rate detection device that detects the flow rate of the electrolyte; 1
1 is a drive source switching device that opens and closes the drive source of the drive motor 5;
Reference numeral 12 denotes an electrolytic power supply switching device that opens and closes the electrolytic power supply to the electrode 2 via the carbon brush 7, and 13 indicates a drive source switching device 11.
and a control device for controlling the electrolytic power supply switching device 12.

Next, the operation of the polishing apparatus will be explained.

First, when the electrode tool 1 is pressed against the surface to be polished 9 with a predetermined force, the electrolyte flow path opening/closing device 8 is activated to start supplying the electrolyte. The flow rate of this electrolyte is called the electrolyte flow rate. Detection device 10
When the flow rate exceeds a predetermined value, a signal is output from the control device 13 to activate the drive source opening/closing device 11, causing the drive motor 5 to rotate and the electrode tool 1 to rotate. The rotational speed of the electrode tool 1 is detected by the rotational speed detection device 6, and when the rotational speed exceeds a predetermined rotational speed, a signal is output from the control device 13, the electrolytic power switch 12 is activated, and electrolytic power is supplied to the electrode 2. , perform electrolytic composite polishing. During normal polishing work, electrolytic polishing is performed simply by pressing the electrode tool 1 against the surface to be polished 9. The liquid supply, the driving source for the electrode tool 1, and the electrolytic power source are automatically supplied, and polishing work can be performed without any valve operation or switch on/off operation.
When stopping the work, simply by removing the electrode tool 1 from the surface to be polished 9, all supply paths are automatically cut off.

Also, when the rotation speed of the polishing main shaft 4 falls below a predetermined value during polishing work, the rotation speed detection device 6 detects the
The electrolytic power source is turned on and off through the power supply, and abnormal electrolysis is prevented. Furthermore, if the electrolyte supply drops below the specified flow rate,
The drive source for the electrode tool and the electrolytic power supply are turned on or off. Further, in each abnormal stop state, if the detection device that detected the abnormality returns to a normal operating state, each supply route that has been temporarily cut off is automatically restored. As described above, according to the electrolytic composite polishing apparatus of the present invention, among the passivated oxide films formed on the uneven parts of the surface of the object to be polished connected to the anode by electrolytic action, the protrusions are rubbed with the abrasive material. In a portable electrolytic composite polishing device for removing and finishing the surface of an object to be polished to a mirror finish, the polishing section includes an electrode tool consisting of an electrode for electrolysis and an abrasive material for rubbing, and a drive motor for rotating the electrode tool. and a rotational speed detection device for detecting the rotational speed of the electrode tool, which opens a flow path for electrolyte to the electrode tool at a predetermined pressing pressure on the surface to be polished of the electrode tool, and An electrolyte flow path opening/closing device that closes the flow path when the pressing pressure is not reached is provided, and the control unit includes a drive source opening/closing device that opens and closes the drive source of the drive motor, and detects the flow rate of the electrolyte. An electrolytic solution flow rate detection device, an electrolytic power source switching device that opens and closes the electrolytic power supply to the electrode, and when the electrolytic solution flow rate detection device turns on the drive source switching device when the flow rate exceeds a predetermined flow rate, the electrolytic solution flow rate detection device turns on the drive source switching device, If the rotation speed does not reach the predetermined rotation speed, the drive source switching device is turned off, and when the rotation speed exceeds a predetermined rotation speed determined by the rotation speed detection device, the electrolytic power source switching device is turned on. By providing a control device that turns off the power switch, it is possible to start or stop the polishing operation simply by pressing the electrode tool against the surface to be polished with a predetermined pressing pressure or higher. This makes it possible to improve the efficiency of polishing work and to easily and appropriately deal with abnormal situations during work.

[Brief explanation of the drawing]

The drawing is a configuration diagram of one embodiment of the electrolytic composite polishing apparatus of the present invention. A: Polishing section, B: Control section, 1.
... Electrode tool, 2 ... Electrode, 3 ...
... Abrasive material, 4 ... Polishing spindle, 5 ...
... Drive motor, 6 ... Rotation speed detection device, channel opening/closing device, 10 ... Electrolyte flow 1 ...
... Drive source switchgear, 12... Electrolytic power switchgear, 13... Control device.

Claims (1)

[Claims] 1 A portable type that uses an abrasive to remove the convex portions of the passivated oxide film formed on the surface of the object to be polished connected to the anode by electrolytic action, thereby finishing the surface of the object to be polished to a mirror finish. In the electrolytic composite polishing apparatus, the polishing part includes an electrode tool consisting of an electrode for electrolysis and an abrasive material for rubbing, a drive motor for rotating the electrode tool, and a rotation speed detection device for detecting the rotation speed of the electrode tool. , an electrolytic solution flow path to the electrode tool is opened when the electrode tool is pressed against a surface to be polished at a predetermined pressing pressure, and when the predetermined pressing pressure is not reached, the electrolytic solution flow path is closed. The controller includes a drive switchgear that opens and closes the drive source of the drive motor, an electrolyte flow rate detection device that detects the flow rate of the electrolytic solution, and an electrolytic power source that opens and closes the electrolytic power supply to the electrodes. The driving source switching device is turned on when the flow rate exceeds a predetermined flow rate by a switching device and the electrolyte flow rate detection device, and the driving source switching device is turned off when the flow rate does not reach the predetermined flow rate, and the rotation speed is An electrolysis device characterized by comprising a control device that turns on the electrolytic power switch when the rotation speed exceeds a predetermined rotation speed determined by a detection device, and turns off the electrolysis power switch when the rotation speed does not reach the predetermined rotation speed. Composite polishing equipment.