JPH084976Y2 - Electrolytic deburring device handset - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handset of a hand-held electrolytic deburring device which can easily remove burrs after machining and burrs left by electrolytic machining or electric discharge machining.

[0002]

2. Description of the Related Art A hand-held electrolytic deburring apparatus such as the one described above is operated by injecting an electrolytic solution from the tip of a cathode nozzle operated by hand and bringing the tip of the cathode nozzle close to a work to energize it. Deburring is performed, and it is composed of a cathode nozzle, an electrolytic solution supply tube, a handset including an electric current supply wire, an electrolytic solution supply device, and an electrolysis power supply.

However, in the handset of the conventional hand-held electrolytic deburring device, the electrolytic solution supply tube and the electrolytic current supply electric wire are separate, and the structure is integrated before the grip portion. It had the drawback of being difficult to handle. Also, in the conventional device, the electrolytic solution supply tube may be bent excessively depending on the handling, which hinders the supply of the electrolytic solution, which causes current to flow in the burr part when the electrolytic solution with a cooling action is insufficient. There is a problem that heat is generated, the work is burnt, and the electrolytic solution is evaporated.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, is easy to handle, does not cause excessive bending, and is capable of ensuring a flow path for electrolytic solution. It was completed to provide a handset for the device.

[0005]

A first invention made in order to solve the above-mentioned problems is characterized in that an electrolytic current supply electric wire is incorporated into an electrolytic solution supply tube for a cathode nozzle to form a single electric wire. To do. A second invention made to solve the same problem is characterized in that an electrolytic current supply electric wire and an operation circuit electric wire are integrated into one in an electrolytic solution supply tube for a cathode nozzle. is there.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. In FIG. 1, reference numeral 1 is a grip portion, and 2 is a cathode nozzle that is replaceably attached to the tip of the grip portion 1 with a nut 3. A fixed tube 4 made of brass or the like is provided inside the grip portion 1, and the cathode nozzle 2 is covered with an insulating material on the outside as shown in an enlarged view in FIG. There is.

Reference numeral 5 is an electrolytic solution supply tube connected to the grip portion 1. A joint 6 is provided at the end of the electrolytic solution supply tube 5 and is connected to an electrolytic solution supply device so that an electrolytic solution such as an aqueous NaNO ₃ solution can be supplied. In the present invention, an electrolytic current supply wire 7 is incorporated inside the electrolytic solution supply tube 5. The electrolytic current supply electric wire 7 is inserted into the electrolytic solution supply tube 5 from the joint 6, and its tip is connected to the fixed tube 4. In addition, 8 is a holding part 1.
Is an operation button provided in the vicinity of the distal end of the electrode, and the operation button 8 and the main body are connected by an operation circuit wire 9 passing through the inside of the electrolyte solution supply tube 5.

FIG. 3 is a schematic view of the electrolysis section of the electrolytic deburring apparatus equipped with the handset of the present invention, in which 10 is an electrolytic solution tank, and 11 is a drainer which also functions as a workbench set on the electrolytic solution tank 10. A vat, a vertical pump 12 for sucking the electrolytic solution in the electrolytic solution tank 10 and pumping it to the electrolytic solution supply tube 5, and a reference numeral 13 for an electrolytic solution amount adjusting valve. As shown in the figure, the work W is placed on the draining vat 11, and the cathode nozzle 2 is brought close to the work W to perform electrolytic deburring. Electrolyte is drainer vat 11
It returns to the inside of the electrolytic solution tank 10 through and is recycled. Further, the electrolytic current supply wire 7 is connected to the negative pole of the DC power supply device of 50 volts and 5 amps, and the work W is connected to the positive pole thereof.
If the draining bat 11 is made of metal such as stainless steel and the draining bat 11 is connected to the + pole of the DC power supply, the work W need only be placed on the draining bat 11.

[0009]

The handset of the present invention thus constructed has the electrolytic current supply wire 7 inside the electrolytic solution supply tube 5.
Since it is integrally incorporated, it is easier to handle as compared with the conventional one in which both are separately provided, and the operability at the time of electrolytic deburring can be greatly improved. In addition, by incorporating the electrolytic current supply wire 7 in this way, the electrolytic solution supply tube 5 is less likely to bend, and even if it is bent, a gap can be created by the electrolytic current supply wire 7 so that the flow path of the electrolytic solution can be secured. Therefore, there is no problem in deburring work. Further, since the electrolytic current supply electric wire 7 is always in contact with the electrolytic solution and is cooled inside the electrolytic solution supply tube 5 during energization, a relatively thin and highly flexible electric wire can be used.

In the handset of the second invention in which the electrolytic current supply electric wire 7 and the operation circuit electric wire 9 are integrated into the electrolytic solution supply tube 5, the electrolytic solution supply, stop,
The operation of turning on / off the electrolytic current can be performed with the operation button 8 at hand, and the operability can be further enhanced.

[0011]

[Effects of the Invention] As is apparent from the above description, the present invention is that the handset is easy to handle and has good operability, the electrolytic solution supply tube is difficult to bend, and the electrolytic solution flow path is secured even if it is bent. By doing so, there is an advantage that troubles such as burning of the work do not occur, and the electrolytic current supply electric wire can be always cooled so that a thin wire can be used. Therefore, the present invention has an extremely great practical value as a handset for an electrolytic deburring apparatus that solves the conventional problems.

[Brief description of drawings]

FIG. 1 is a partial sectional view showing an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a tip portion of a grip portion of a handset.

FIG. 3 is a cross-sectional view schematically showing an electrolysis section of an electrolytic deburring apparatus equipped with a handset of the present invention.

[Explanation of symbols]

 2 Cathode nozzle 5 Electrolyte supply tube 7 Electrolysis current supply wire 9 Operation circuit wire

Claims (2)

[Scope of utility model registration request] 1. A tube for supplying an electrolytic solution to a cathode nozzle (2)
(5) A handset for an electrolytic deburring device, characterized in that the electrolytic current supply electric wire (7) is incorporated into one unit. 2. An electrolyte solution supply tube for the cathode nozzle (2)
(5) A handset for an electrolytic deburring device, characterized in that the electrolytic current supply electric wire (7) and the operation circuit electric wire (9) are integrated into a single unit.