JPH05228781A - Dust collector for cutting chip - Google Patents

Abstract

PURPOSE:To improve dust collecting capacity for cutting chip by respectively providing dust collecting cover bodies on the drill side of a work piece and on the other side of it so as to make the part to be cut in closed condition, fitting an air supply hose to one dust collecting cover body, and fitting an air sucking hose to the other dust collecting cover body. CONSTITUTION:When a drill 1 is brought down and a base plate 6 is penetrated through with the drill, air flows from an upper side dust collecting cover body 10 to an lower side dust collecting cover body through the gap between the drill 1 and the drilled hole of the base plate 6. Next, when the drill 1 is lifted, further a large quantity of air flows suddenly from the upper side dust collecting cover body 10 to the lower side dust collecting cover body 12 through the through hole, and hence cutting chip generated following to drilling can be perfectly collected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting apparatus suitable for improving the dust collecting ability of cutting powder generated at the time of drilling by drilling, for example.

[0002]

2. Description of the Related Art Conventionally, when drilling is performed by a drilling machine, the cutting powder of the drilled material is scattered around, which causes deterioration of working environment and equipment failure. .. Therefore, as a measure to prevent the scattering of cutting powder, the upper and lower surfaces of the work part to be drilled are covered with a dust cover to seal it, and the air inside the dust cover is sucked to collect the cutting powder. ing.

That is, as shown in FIG. 3, for example, the dust collecting cover bodies 2 and 3 are clamped from above and below around the perforated portion of the substrate 6 which is the object to be cut and hermetically sealed. Next, the drill 1 descends to perform perforation (see FIG. 4 (a)). In this case, the cutting powder 5 ... Generated in the upper and lower dust collecting cover bodies 2 and 3 are both collected. By the air suction hoses 4 and 4 attached to the dust cover bodies 2 and 3, respectively, the air in the dust collection cover bodies 2 and 3 is sucked and dust is collected (see FIG. 4B).

[0004]

However, according to the conventional method for collecting the cutting powder 5 ... by sucking the air in the dust collecting cover bodies 2 and 3 as described above, the dust collecting cover bodies are Since the insides of 2 and 3 are in a state close to a vacuum, the flow of air is reduced and it is difficult to completely collect the cutting powder 5. For this reason, the cutting powder 5 generated in the dust collecting cover bodies 2 and 3 is not completely collected and scatters on the substrate 6, which causes a problem that the working environment and peripheral devices are deteriorated. Have

The present invention has been made in view of the above circumstances, and when a hole is formed by drilling, an air flow in the dust cover body is forcibly generated to improve the dust collecting ability of the cutting powder. An object of the present invention is to provide a dust collector that can be improved.

[0006]

In order to achieve the above object, the present invention provides a dust collector for sucking and removing cutting powder and the like generated from an object to be cut by drilling. Side and the opposite side of the dust collecting cover to set the cutting part in a sealed state, and also attach an air supply hose to one dust collecting cover and suck air into the other dust collecting cover. It is characterized by attaching a hose.

[0007]

According to the present invention, the cutting powder generated at the time of drilling is forced to flow the air in the dust collecting cover body by the air supply hose and the air suction hose attached to the dust collecting cover body. To improve the dust collecting ability and collect dust efficiently.

[0008]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 and 2 are cross-sectional views for explaining the main part of the dust collector according to the present invention, the same members as those in the conventional art are designated by the same reference numerals for convenience of description.

A drill 1 for drilling the substrate 6
The dust collecting covers 10 and 12 are clamped so as to seal the periphery of the drill 1 and the substrate 6 to be drilled, that is, from the vertical direction of the work part. In this embodiment, an air supply hose 11 is attached to the upper dust collecting cover body 10 through the nozzle portion, and an air suction hose is attached to the lower dust collecting cover body 12 through the nozzle portion. 13 is attached.

Therefore, as shown in FIG. 2 (a), the drill 1 descends to punch the substrate 6.
At this time, since air is supplied into the upper dust collecting cover body 10, the inside of the dust collecting cover body 10 is pressurized. Further, since air is sucked into the lower dust collecting cover body 12, the inside of the dust collecting cover body 12 is in a pressureless state.

Therefore, when the drill 1 descends and penetrates the substrate 6, air is passed from the upper dust collecting cover body 10 to the lower dust collecting cover body 12 through the space between the drill 1 and the perforated surface of the substrate 6. It will flow into. Next, as shown in FIG. 2B, when the drill 1 is lifted, a larger amount of air rapidly flows from the through hole into the lower dust collecting cover body 12 through the through hole. Generated cutting powder 5
・ ・ Can completely collect dust.

When the dust collecting cover bodies 10 and 12 are formed as conical cover bodies as shown in the drawing, an air flow flowing from the upper dust collecting cover body 10 to the lower dust collecting cover body 12. Can be made more rapid, the predetermined object can be achieved with a small air supply amount and a small suction amount, and the backflow action of air can be effectively prevented.

Next, an insulating plate is used as a drilling work, the drill diameter is 3.14 mm, and the drill rotation speed is 30,000 r.
Table 1 below shows the experimental results when drilling was performed under the conditions of pm and a drill feed rate of 0.6 m / min. As a method for evaluating the dust collecting ability, the mass of the cutting dust collected during drilling was measured, and it was judged that the larger the dust collecting ability, the higher the dust collecting ability. Further, the punching operation was performed so that 100 holes were continuously punched 4 times.

[0014]

[Table 1] From this, it was confirmed that the forced dust collecting method forcibly generates a flow of air in the dust collecting cover body and has a higher dust collecting ability than the conventional dust collecting method.

[0015]

As described above, according to the present invention, the air in the upper and lower dust collecting cover bodies installed on the upper and lower surfaces of the object to be cut is for supplying air to one dust collecting cover body. The hose and the air suction hose attached to the other dust collecting cover body forcefully circulate the air. For this reason,
It is possible to improve the dust collecting ability for cutting powder generated during drilling and completely remove the cutting powder by suction.

[Brief description of drawings]

FIG. 1 is an explanatory sectional view showing a main part of a dust collector according to the present invention.

FIG. 2 is an explanatory cross-sectional view showing a cutting dust collecting state of the apparatus in FIG.

FIG. 3 is an explanatory cross-sectional view showing a main part of a conventional dust collector.

FIG. 4 is an explanatory sectional view showing a cutting dust collecting state of the apparatus in FIG.

[Explanation of symbols]

 1 Drill 5 Cutting powder 6 Substrate 10 Upper dust collecting cover body 11 Air supply hose 12 Lower dust collecting cover body 13 Air suction hose

Claims (1)

[Claims] 1. A dust collecting apparatus for sucking and removing cutting powder and the like generated from an object to be cut by drilling, wherein a dust collecting cover body is installed on a part of the object to be drilled and a part opposite to the drill, respectively. A dust collecting device for cutting powder, characterized in that the air-supply hose is attached to one of the dust collecting cover bodies and an air suction hose is attached to the other dust collecting cover body.