JPH061299Y2 - Electrolytic deburring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improved electrolytic deburring device.

(Prior Art) A conventional electrolytic deburring device incorporates a water washing step between the electrolytic deburring step and the rustproofing step. As shown in FIG. station
The structure was such that the work (54) was sequentially transported to the (51), the water washing station (52), and the rust prevention station (53).

(Problems to be solved by the invention) However, in such a conventional one, the work (54) has to be transported to each station, useful electrolyte is lost, and washing water is used. There is also a problem that requires wastewater treatment. Therefore, it is desired to develop an electrolytic deburring device that can efficiently transport the electrolyte solution by reducing the transportation of the work (54).

(Means for Solving the Problems) The present invention has been made in response to the above-mentioned long-awaited situation, and the electrolytic solution supply pipe is connected between the electrolytic solution tank and the electrode, and the electrode and the centrifuge are connected to each other. Between them by an electrolytic solution discharge pipe, and further, an electrolytic deburring station in which a centrifugal separator and the electrolytic solution tank are connected by an electrolytic solution return pipe, a jig for setting the electrolytic deburred work, and rust prevention. It is equipped with an anticorrosion station that connects the oil tank with an antirust oil supply pipe that supplies antirust oil and also connects the jig and the antirust oil tank with an antirust oil discharge pipe that returns antirust oil. The centrifuge, which is connected to the electrolytic solution tank via the electrolytic solution return pipe, and the bottom of the rust preventive oil tank are connected by a return pipe.

(Embodiment) Next, an embodiment of the present invention will be described in detail with reference to FIG.
First, the electrolytic deburring station (1) for electrolytic deburring of a work will be described. (2) is an electrode corresponding to the deburring surface of the work (3), and (4) is for supplying power to the work (3). (5) is a direct current power source for applying a direct current to the electrode (2) and the work (3), and (6) is the electrode (2) with its tip connected to the electrolyte tank (7). ) Is connected to the electrolytic solution supply pipe, the electrolytic solution supply pipe (6) is provided with a solenoid valve (8) for feeding and stopping the electrolytic solution, a flow meter (9) and a filter (10). In addition, a pump (11) is provided.
(12) is an excess electrolyte return pipe branched from the position above the pump (11) of the electrolyte supply pipe (6), and the excess electrolyte return pipe (1
In 2), the excess electrolytic solution is circulated in the electrolytic solution tank (7) to stir the electrolytic solution in the electrolytic solution tank (7). (13) is an electrode
Centrifuge for removing sludge in the electrolyte discharged through the electrolyte discharge pipe (14) with the proximal end connected to (2), (15)
Is an electrolytic solution return pipe for returning the electrolytic solution from which sludge has been removed by the centrifuge (13) to the electrolytic solution tank (7). (16)
Is an air feeding device that blows air to remove the electrolytic solution from the work (2) after completion of electrolytic deburring, and the air feeding device (16) blows air through the electrolytic solution supply pipe (6). It is supposed to be blown in. Further, (17) is an electrode-type liquid level gauge for monitoring the liquid level of the electrolytic solution in the electrolytic solution tank (7), (9a), (9
b) is a control valve that controls the amount of electrolyte supply under the supervision of the flow meter (9).

Next, the rust prevention processing station (1
Explaining 8), (19) is the work (3) immediately after electrolytic deburring transferred from the electrolytic deburring station (1).
A jig for flowing rust preventive oil toward the work (3), (20) a work holder, and (21) a jig (19) with its tip connected to the base and a rust preventive oil tank. A rust preventive oil supply pipe connected to (22), and the rust preventive oil supply pipe (21) is provided with a pump (23) forcibly sending the rust preventive oil. (24) is the jig (1
The rust-preventive oil discharged from between the work piece (3) and the work piece (3)
Anti-corrosion oil discharge pipe returned to (22), (25) electrolytic solution washed from the work surface by anti-corrosion oil, flowed into the anti-corrosion oil tank (22) and settled at the bottom of the anti-corrosion oil tank (22) A return pipe with a pump (26) for taking out and feeding it to the above-mentioned centrifuge (13), (27) is a liquid level gauge for detecting overflow prevention and electrolyte increase, and the electrolyte is above a certain level. Pump in case of (26)
It also activates.

(Operation) In the structure thus configured, first, the work (3) is set in the electrolytic deburring station (1) so as to correspond to the electrode (2), and the power supply pressurizing unit (4) is set to the work (3). ). Next, the solenoid valve (8) is turned on, and the electrolyte solution in the electrolyte solution tank (7) flows from the tip of the electrolyte solution supply pipe (6) through the gap between the electrode (2) and the work (3) by the pump (11). DC power supply (5)
By applying a DC current to the electrode (2), the electrolytic deburring of the work (3) is performed. During this electrolytic deburring, the electrode (2) and the workpiece
The electrolyte discharged from between (3) and (3) is introduced into the centrifuge (13) from the electrolyte discharge pipe (14), sludge is removed in the centrifuge (13), and then the electrolyte return pipe is returned. It is returned to the electrolytic solution tank (7) via (15).

When this electrolytic deburring is completed, the work (3) is immediately transferred to the anticorrosion treatment station (18) without washing with water and the jig is
Inside the anticorrosion oil tank (22) by setting the work (3) in (19) and operating the pump (23) provided in the antirust oil supply pipe (21) whose tip is connected to the jig (19). The rust-preventing oil of is flowed from the jig (19) to the work (3). As a result, a rust preventive coating film is formed on the work (3) and the electrolytic solution remaining on the work (3) is washed away, and the work (3) is arranged between the jig (19) and the rust preventive oil tank (22). Discharge pipe
When it is returned to the rust preventive oil tank (22) through the (24), the electrolytic solution is insoluble in the rust preventive oil and has a large specific gravity, so that it will settle at the bottom of the rust preventive oil tank (22). Therefore, the electrolytic solution is extracted from the bottom of the rust preventive oil tank (22) by the return pipe (25) and sent to the centrifuge (13), sludge is removed, and then the electrolytic solution return pipe (15) is passed through. Return to (7). In this way, the recovery of the electrolytic solution is surely performed.

(Effect of the invention) As is apparent from the above explanation, the present invention rinses a small amount of the electrolytic solution remaining on the work with rust preventive oil at the rust preventive treatment station and sends it to the rust preventive solution tank to send it to the rust preventive oil. Is cleverly used to settle to the bottom of the rust preventive oil tank and then returned to the electrolytic solution tank via a centrifuge, so the electrolytic solution can be collected efficiently, and since the washing process is omitted, wastewater treatment is also unnecessary. Therefore, the problem of the conventional electrolytic deburring device is eliminated, and the contribution to the industrial development is extremely large.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of the present invention, and FIG. 2 is a schematic sectional view showing a conventional electrolytic deburring apparatus. (1): Electrolytic deburring station, (2): Electrode, (3): Work, (6): Electrolyte supply pipe, (7): Electrolyte tank, (13): Centrifuge (14): Electrolysis Liquid discharge pipe, (15): Electrolyte return pipe, (1
8): Antirust station, (19): Jig, (21): Antirust oil supply pipe, (22): Antirust oil tank, (24): Antirust oil discharge pipe, (25): Return pipe.

Claims (1)

[Scope of utility model registration request] 1. An electrolytic solution supply pipe (6) is connected between the electrolytic solution tank (7) and the electrode (2), and the electrode (2) and the centrifuge are separated.
An electrolyte solution discharge pipe (14) is connected between (13) and a centrifugal separator (13) and the electrolyte solution tank (7) and an electrolyte solution return pipe (15).
Rust preventive oil that supplies rust preventive oil between the electrolytic deburring station (1) connected by the above, the jig (19) for setting the electrolytic deburred work (3) and the rust preventive oil tank (22) Supply pipe (21)
And a rust preventive station (18) connected by a rust preventive oil discharge pipe (24) for returning rust preventive oil between the jig (19) and the rust preventive oil tank (22). Electrolyte tank
An electrolytic burr characterized in that the centrifuge (13) connected to the (7) via the electrolyte return pipe (15) and the bottom of the rust preventive oil tank (22) are connected by the return pipe (25). Taker.