JPH01146646A - Ultrasonic burr removing device - Google Patents

Abstract

PURPOSE:To perform easy and reliable removal of burrs, by a method wherein a work is contained in a container in a state to be immersed in liquid, ultrasonic energy is applied on the liquid, and the interior of the container is held in an airtight state to increase an internal pressure. CONSTITUTION:A work 3 is contained in a container 1 in a state to be immersed directly in liquid 4, an internal pressure is increased with the aid of an air compressor 13 to exert a pressure on air contained in the liquid 4, and air bubbles are removed. Thus, a cavitation threshold is improved, and when, with this state, ultrasonic energy is on the liquid 4 by means of an ultrasonic vibrator 9, production and rupture are effected by means of energy having high cavitation, and a high erosion action can be created. Therefore, burrs can be effectively removed, and when the work 3 has a thick section and a member in a complicated shape and burrs are adhered to an inner edge, burrs can be easily, rapidly, and reliably removed.

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) The present invention relates to an ultrasonic deburring device used for removing burrs from members made by mechanical processing such as forging and press working. It is something.

(Prior Art) Conventionally, there is an ultrasonic deburring device that uses ultrasonic waves as one of the devices for removing burrs generated by machining.

When using this ultrasonic deburring device, compared to the case where grinding was performed one by one by machining,
Although it became more efficient because it could deburr multiple pieces at the same time, it was still insufficient in terms of performance. Therefore, several improvements have been made to conventional ultrasonic deburring devices. As one of them, for example, JP-A-60-232
A configuration as shown in Japanese Patent No. 856 is known. In this device, a deburring plate is held in a container sandwiched between two polishing films, and the container is placed in water in the water tank of an ultrasonic cleaner. By applying ultrasonic vibration to the polishing film, relative movement occurs between the polishing film and the deburring plate material, and deburring is performed.

(Problem to be Solved by the Invention) However, in this conventional device, when the deburring plate is held between two polishing films, the deburring plate is attached to the surface of the plate by relative movement based on ultrasonic vibration. However, it is not possible to remove burrs attached to the end face of a thick member or the inner edge of a member with a complicated shape.

For this reason, in the past, it was necessary to manually remove burrs from the end faces and inner edges of these parts one by one using files, grinders, etc., and this work was very time-consuming. There is a problem that it is troublesome and takes a lot of time. The present invention solves the above problems and aims to provide an ultrasonic deburring device that can easily and reliably deburr.

Structure of the Invention (Means for Solving the Problems) The present invention has been made by focusing on the above-mentioned problems, and includes a container for storing a workpiece immersed in a liquid, and a container for storing a workpiece immersed in a liquid. The container includes an ultrasonic generating means for applying ultrasonic energy to the liquid in the container, a sealing means for keeping the inside of the container in an airtight state, and a pressurizing means for increasing the internal pressure of the container. It is something.

(Function) Therefore, in the ultrasonic deburring device of the present invention, the workpiece is housed so as to be directly immersed in the liquid in the container, and in this state, the internal pressure is increased, and the pressure is applied to the air contained in the liquid. air bubbles are removed. Therefore, when the cavitation threshold becomes high and ultrasonic energy is applied to the liquid in this state, cavitation is generated and ruptured with high energy, resulting in a high erosion effect (q).

Therefore, burrs can be effectively removed, even if the workpiece is a thick member with burrs on its end face, or if the workpiece is a member with a complex shape and its inner edge Even if there are burrs on the surface, the burrs can be easily and reliably removed in a short time.

(Embodiment) Hereinafter, an embodiment of an ultrasonic deburring device embodying the present invention will be described in detail with reference to the drawings.

Now, the container 1 of this ultrasonic deburring device is formed into a substantially box shape with an open top surface, and a flange 2 is provided protruding from the outer periphery of the top end. In this container 1, a plurality of workpieces 3 having burrs after press working are housed, and a deburring liquid 4 is also housed.
immersed in

As the deburring liquid 4, a water wheel or a suspension obtained by mixing an appropriate amount of abrasive material with water is used.

The lid 5 is mounted on the flange 2 of the container 1 via a gasket 6 so as to cover the upper opening of the container 1 in an openable and closable manner. A plurality of fasteners 7, which constitute a sealing means together with the lid 5 and the gasket 6, are attached to straddle the outer peripheral edge of the lid 5 and the flange 2 of the container 1, and tighten the bolts 8 to close the lid 5 to the container 1. The inside of the container 1 is kept airtight by being brought into close contact with the upper surface of the container 1.

The ultrasonic vibrator 9 constituting the ultrasonic generating means is connected to the liquid 4.
It is attached to the lower surface of the lid 5 so as to be immersed in the water, and is connected to an ultrasonic oscillator 10 provided outside the container 1.

Then, as the ultrasonic valve 1 energizer 10 operates, ultrasonic waves are generated from the ultrasonic vibrator 9, and the ultrasonic energy is applied to the liquid 4.

An air intake port 11 is formed in the lid 5 and is connected to an air compressor 13 as pressurizing means via an air pressure regulating valve 12. Then, a predetermined amount of air is supplied from the air compressor 13 into the container 1 according to the pressure adjustment of the air pressure regulating valve 12, and the inside of the container 1 is kept under pressure at a predetermined pressure of, for example, about 5 kg/cm2. .

Next, the operation of the ultrasonic deburring device configured as described above will be explained.

Now, when using this ultrasonic deburring device to remove burrs from a workpiece, the workpiece 3 is housed in a container 1 and a deburring liquid 4 is supplied into the container 1. Then, the workpiece 3 is immersed in the liquid 4. Thereafter, the lid 5 is placed on the container 1 via the packing 6, and the lid 5 is brought into close contact with the upper surface of the container 1 by a plurality of fasteners 7, thereby making the inside of the container 1 airtight. Then, the air pressure regulating valve 12 is adjusted to supply air from the air compressor 13 into the container 1 to increase the internal pressure of the container 1 to a predetermined value.

When the ultrasonic oscillator 10 is operated in this state, ultrasonic waves are generated from the ultrasonic vibrator 9, and the entire liquid 4 is ultrasonically vibrated. Then, the burr attached to the workpiece 3 is removed by the erosion effect caused by the generation and rupture of cavitation based on this ultrasonic vibration. Therefore, even if there is burr on the end face of a thick workpiece or on the inner edge of a workpiece with a complex shape, the burr will not come into contact with the liquid 4. It will definitely be removed. At this time, since the inside of the container 1 is in a pressurized state, pressure is applied to the air contained in the liquid, removing air bubbles and increasing the cavitation threshold. Therefore, the energy of cavitation generation and rupture is greater than that under normal pressure, and burrs can be easily and reliably removed in a short time. In addition, deburring can be performed simply by arbitrarily arranging the workpiece 3 in the container 1 without considering the arrangement of the workpiece 3, and the work efficiency can be improved. Further, since the workpiece 3 is immersed in the liquid 4, the surface of the workpiece 3 can be cleaned and finished at the same time as deburring, and finishing treatment after deburring can also be performed.

Note that the present invention is not limited to the configuration of the above-mentioned embodiments, and various parts may be modified without departing from the spirit of the present invention, such as a configuration in which ultrasonic vibrations are applied to the liquid 4 through the container 1. It is also possible to change the configuration arbitrarily and implement it.

Effects of the Invention As detailed above, according to the present invention, the workpiece can be used in cases where the workpiece is a thick member with burrs on the end face, or in cases where the workpiece is a member with a complicated shape. Therefore, even if there are burrs on the inner edge, the burrs can be easily and reliably removed in a short time, which is an excellent effect.

[Brief explanation of the drawing]

The drawing is a sectional view of an ultrasonic deburring device embodying the present invention. 1... Container, 3... Workpiece, 4... Liquid, 5...
... Lid, 6... Packing, 7... Together with the lid and packing, v! ! A fastener constituting the lever means, an ultrasonic vibrator as a layered sound wave generating means for 9, and an air compressor as a pressurizing means.

Claims (1)

[Claims] 1. A container (1) containing a workpiece (3) immersed in a liquid (4), and applying ultrasonic energy to the liquid (4) in the container (1). an ultrasonic generating means (9) for maintaining the inside of the container (1), a sealing means (5, 6, 7) for maintaining the inside of the container (1) in an airtight state, and a pressurizing device for increasing the internal pressure of the container (1). Means (1
3) An ultrasonic deburring device comprising: