JP2006150493A - Method and device for deburring and cleaning - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a device for deburring and cleaning by which deburring and cleaning can be effectively executed over a wide range in a short period of time, working efficiently can be improved, and costs can be reduced. <P>SOLUTION: Arc discharge (a) is generated between positive/negative discharge electrodes 22, 23 by impressing a high-voltage pulse between the positive/negative discharge electrodes 22, 23 arranged closely to a workpiece 4 immersed in a processing liquid 3 and facing each other in the processing liquid 3. The workpiece 4 is cleansed by removing foreign matters deposited to the workpiece 4 or burrs with a shock wave (c) generated by the arc discharge (a). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a deburring and cleaning method and apparatus for removing burrs generated by metalworking and cutting chips.

  Conventional deburring cleaning methods include cleaning with a brush, cleaning with a water jet (for example, see Patent Document 1), and cleaning with ultrasonic waves (for example, see Patent Document 2).

  The water jet cleaning method includes a first high-pressure nozzle and a second high-pressure nozzle, both of which are positively reversed at a predetermined angle while vigorously injecting a high-pressure cleaning liquid, and the first nozzle is used to form a workpiece hole. The burrs adhering to the inner side of the hollow portion are removed by the second high-pressure nozzle.

  In addition, the ultrasonic cleaning method is provided with an ultrasonic vibrator at the bottom, and the work is immersed in a cleaning tank in which the cleaning liquid is put, and ultrasonic waves are emitted from the ultrasonic vibrator to the cleaning liquid to deburr the work. , Cleaning is performed.

JP-A-8-216100 JP-A-7-124532

However, the conventional deburring and cleaning method has the following problems.
That is, the cleaning method using a brush has a problem that the running cost is high because the brush is worn.

  Further, in the water jet cleaning method, since the cleaning range is spot-like, if the cleaning range is widened, the work time becomes long, the work efficiency is poor, and the energy consumption is large, which increases the running cost. At the same time, it is restricted to places where high-pressure nozzles can be inserted, or places where the cleaning liquid can be applied to burrs while maintaining high pressure, and it is possible to effectively deburr and clean the insides of fine holes, long holes, and bent holes. There is a problem that you can not. In particular, the inside of a hollow or long part of a workpiece that easily absorbs ultrasonic vibrations, such as aluminum, is less likely to reach the target location, so cavitation is less likely to occur. The deburring and cleaning could not be effectively performed.

  In addition, the ultrasonic cleaning method takes a long time to clean, so that the work efficiency is poor and the cavitation is less likely to occur inside the workpiece where the ultrasonic wave is difficult to reach. Therefore, the removal of burrs inside the workpiece is effective. There is a problem that it can not be done.

  The present invention has been made to solve the conventional problems as described above, and the object of the present invention is to effectively perform deburring and cleaning over a wide range in a short time. An object of the present invention is to provide a deburring cleaning method and apparatus capable of improving efficiency and reducing costs.

  In order to solve the above-mentioned problem, the deburring and cleaning method according to claim 1 of the present invention is characterized in that a high voltage pulse is applied between positive and negative discharge electrodes exposed to the treatment liquid in the vicinity of the object immersed in the treatment liquid. Is applied to generate an arc discharge between the positive and negative discharge electrodes, and the foreign matter or burrs attached to the object to be processed are removed and washed by the shock wave generated thereby. .

  The deburring and cleaning apparatus according to claim 2 is a treatment tank containing a treatment liquid for immersing the object to be treated, and is exposed to the treatment liquid in the vicinity of the object to be treated immersed in the treatment tank. High voltage pulse generating means for applying a high voltage pulse between the positive and negative discharge electrodes, arc discharge is generated between the positive and negative discharge electrodes by the high voltage pulse generating means, and the object to be processed is generated by a shock wave generated thereby. The means is characterized in that it is configured to remove the foreign matter or burrs attached to the body and clean it.

  In the deburring and cleaning method according to claim 1, as described above, a high voltage pulse is applied between the positive and negative discharge electrodes exposed to the processing liquid in the vicinity of the target object immersed in the processing liquid, and the positive and negative An arc discharge is generated between the discharge electrodes, and the foreign matter or burrs attached to the object to be processed are removed and cleaned by the shock wave generated thereby, and the deburring and cleaning apparatus according to claim 2, As described above, a high-voltage pulse is applied between a treatment tank containing a treatment liquid for immersing the object to be treated and a positive and negative discharge electrode exposed to the treatment liquid in the vicinity of the object to be treated immersed in the treatment tank. The high voltage pulse generating means generates arc discharge between the positive and negative discharge electrodes by the high voltage pulse generating means, and removes foreign matter or burrs attached to the object to be processed by the shock wave generated thereby to perform cleaning. Configured as Therefore, it is possible to effectively perform deburring cleaning over a wide range in a short time by shock waves, thereby improving work efficiency and shortening the high voltage pulse generation time and reducing the energy consumption. There is an effect that the cost can be reduced.

  Embodiments of the present invention will be described below with reference to the drawings.

The deburring and cleaning apparatus according to the embodiment corresponds to the invention described in claims 1 and 2.
FIG. 1 is a schematic view showing a deburring and cleaning apparatus according to an embodiment, and FIG. 2 is an operation process explanatory view showing a deburring and cleaning method using the deburring and cleaning apparatus.
As shown in FIG. 1, the deburring and cleaning apparatus of the present embodiment includes a processing tank 1 and high voltage pulse generating means 2 as main components.

  More specifically, the processing tank 1 is a tank for storing the processing liquid 3 and the work (object to be processed) 4. In this embodiment, water is stored as the processing liquid and immersed in the water. The workpiece 4 is accommodated in the state.

The high voltage pulse generating means 2 includes a high voltage pulse generating circuit 21 and positive and negative discharge electrodes 22 and 23.
The positive and negative discharge electrodes 22 and 23 are accommodated in an insulating cylinder 24 with their tips exposed.

  The high voltage pulse generation circuit 21 applies a high voltage pulse to the positive and negative discharge electrodes 22 and 23 between the positive and negative discharge electrodes that are exposed to the processing liquid 3 in the vicinity of the workpiece 4 immersed in the processing liquid 3. Arc discharge is generated between 22 and 23.

Next, a deburring and cleaning method using the deburring and cleaning apparatus of this embodiment will be described with reference to the operation process explanatory diagram of FIG.
First, as shown in FIG. 2 (a), the state between the positive and negative discharge electrodes 22 and 23 is made to approach the work 4 immersed in the processing liquid 3 and then the processing liquid 3 is exposed, and then FIG. As shown in FIG. 2, when an arc discharge a between the positive and negative discharge electrodes 22 and 23 is generated by applying a high voltage pulse between the positive and negative discharge electrodes 22 and 23 from the high voltage pulse generation circuit 21, As shown in (c), the treatment liquid 3 around the discharge circuit instantaneously generates a steam explosion b, and a shock wave c due to the steam explosion b passes through the treatment liquid 3 as shown in FIG. Thus, foreign matter or burrs transmitted to the workpiece 4 and attached to the workpiece 4 can be instantaneously removed and cleaned.

In the deburring and cleaning method and apparatus of this embodiment, as described above, a high voltage pulse is applied between the positive and negative discharge electrodes 22 and 23 exposed to the processing liquid 3 in the vicinity of the workpiece 4 immersed in the processing liquid 3. When applied, the arc discharge a is generated between the positive and negative discharge electrodes 22 and 23, and the foreign matter or burrs adhering to the workpiece 4 are removed and washed by the shock wave c generated thereby. Deburring and cleaning can be effectively performed over a wide range in a short time.
Therefore, the working efficiency can be improved and the high voltage pulse generation time is short and the energy consumption is small, so that the cost can be reduced.

  The embodiment of the present invention has been described above, but the specific configuration of the present invention is not limited to this embodiment, and the present invention can be applied even if there is a design change or the like without departing from the gist of the present invention. include.

  For example, in the embodiment, the workpiece is taken as an example of the object to be processed, but the present invention can be applied to all objects that remove burrs generated by metal processing, remove chips, and the like. Moreover, even if a to-be-processed object is other than a metal, this invention is applicable.

It is the schematic which shows the deburring cleaning apparatus of an Example. It is operation | movement process explanatory drawing which shows the deburring cleaning method using the deburring cleaning apparatus of an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Processing tank 2 High voltage pulse generation means 21 High voltage pulse generation circuit 22 Discharge electrode 23 Discharge electrode 24 Insulating cylinder 3 Process liquid 4 Workpiece (to-be-processed object)
a Arc discharge b Explosion occurs and c Shock wave due to this steam explosion b

Claims (2)

  A shock wave generated by applying a high voltage pulse between the positive and negative discharge electrodes exposed in the treatment liquid in the vicinity of the object immersed in the treatment liquid to generate an arc discharge between the positive and negative discharge electrodes. A deburring and cleaning method characterized in that the foreign matter or burrs attached to the object to be processed are removed and cleaned. A treatment tank containing a treatment liquid for immersing the object to be treated;
High voltage pulse generating means for applying a high voltage pulse between the positive and negative discharge electrodes exposed to the treatment liquid in the vicinity of the object to be treated immersed in the treatment tank,
An arc discharge is generated between the positive and negative discharge electrodes by the high voltage pulse generating means, and foreign matter or burrs attached to the object to be processed are removed and washed by a shock wave generated thereby. Deburring and cleaning device.

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