JPH03184709A - Rotating cutter for face cutting - Google Patents

Abstract

PURPOSE:To prevent the clog and splash of chips at the cutting part vicinity by fitting plural elastic fine wires which decelerating chips with their collision and pass-through to the circumference of the rotating body to which the cutter of the rotating cutting tool for cutting surface of a milling machine, etc., is fitted. CONSTITUTION:A rotating body 11 is bonded by penetrating the female screw 15 of a spindle 13 at its center and fastening a fastening screw 14 with its screwing to this female screw 15. The rotating body 11 is then fitted to a machine tool by fitting the spindle 13 to a rotating cylinder 10. On the cutting face of the rotating body 11, plural cutters 12 are fitted by a holder. Moreover, on the circumference of the rotating body 11, plural fine wires 19 decelerating chips with their collision and pass through are fitted. Also, at the place becoming the front part of the cutter 12, a pocket 18 which is the recessed place becoming the escape site of the chips is formed. Consequently, the chip is passed through by flexing the fine wire 19, though it is collided with the fine wire 19, and falls at the vicinity of the rotating body 11.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a milling tool for face cutting such as a milling machine, a large-scale machining center, a cross-cutting machine, etc., and particularly to a chip scattering prevention device thereof.

(Prior Art) In order to prevent chips from scattering during cutting operations using a milling tool for face cutting, conventionally, as shown in Fig. A blocking curtain 2 is installed, and the cutter of the rotary body 3 cuts the workpiece 4, and the chips 5 scattered are made to fall by hitting the blocking curtain 2 (Utility Model Publication No. 5:1-186544).
.

(The invention attempts to solve the problem. M+!, IO) However, in the conventional device described above, the problem is that the blocking curtain 2 is placed in the non-rotating part.
Therefore, the structure of each machine tool must be taken into account for the purpose of shielding and installing the J-Ten 2, and installation may not be possible depending on the structure of the machine.

In addition, since the blocking curtain 2 is installed in a hanging position, this method can only be applied to so-called vertical type milling machines with vertical spindles.
The drawback is that the scope of application is narrow.

Further, chips tend to accumulate inside the shielding curtain 2, and chip clogging is likely to occur. In addition, if chips become clogged, the heat of the chips may accumulate, which can affect the workpiece, which can easily cause problems.

Further, depending on the shape of the workpiece and the cutting direction of the machined part of the workpiece, there is a problem that the blocking curtain 2 becomes an obstacle.

In view of the above-mentioned problems, the present invention prevents the scattering of chips, prevents clogging of chips near the cutting part, and has advantages such as being easily applicable to various types of machines and cutting modes. The object of the present invention is to provide a milling tool for face cutting that has a prevention function.

(Means for Solving the Problems) In order to achieve the above object, the present invention is characterized in that a plurality of thin elastic wires are attached around a rotary body to which a cutter is attached, which causes chips to pass through the collision and decelerate. shall be.

(Function) Since the present invention has the above-mentioned structure, the chips generated by cutting with the cutter collide with the thin elastic wire around the rotating body, but since the wire is thin, the chips do not collide and hinder movement. , it deflects and passes through the thin wire, is decelerated, passes through the thin wire, and falls near the rotating body.

(Example) An example of the milling tool for surface cutting of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing an embodiment of a milling tool according to the present invention, FIG. 2 is a sectional view thereof, FIG. 3 is a partial bottom view thereof, and FIG. 4 is an example of application of the milling tool. FIG. 3 is a side view of the machine tool.

First, an example of how to attach the milling tool 6 of the present invention will be explained with reference to FIG. In FIG. 4, reference numeral 7 denotes a milling machine, in which the rotational force of a motor 8 is transmitted via a power transmission unit 9 and a one-rotation cylinder 10 to a disc-shaped rotating body 11, and a cutter 12 (a first Surface cutting of the workpiece 4 is performed according to the method shown in FIGS.

As shown in FIG. 2, the rotating body 11 passes through the female threaded portion 15 of the spindle 13 at its center, and is coupled by screwing the tightening screw 14 into the female thread 15 and tightening it.

Then, the spindle 13 is fitted into the rotating cylinder lO shown in FIG. 4, and attached to the rotating body 11 and the machine tool.

As shown in FIGS. 1 to 3, a plurality of cutters 12 are held and attached to the cutting surface of the rotating body 11 by holders 16 and 17, and as shown in FIG. At the front of the cutter 12 as seen (indicated by arrow A), there is a pocket 18 which is a concave part where the chips 5 can escape.
is formed.

As shown by the dotted arrow B in FIG.
In the present invention, the rotating body 1 is scattered to the outside of the rotating body 11 via the scattering path B.
A plurality of thin elastic wires 19, such as steel wires, are attached to the outer periphery of the wire. The elastic side i19 can be easily fixed by any fixing means, such as by fixing with a band 20 wrapped around the outer circumference of one rotating body 11, or by fixing with an adhesive tape.

FIG. 5 shows how the chips 5 collide with the thin wire 19, pass through it, and stall. First, as shown in (A), the chips 5 collide with the thin fi 19, and as shown in (B), , chips 5
By pushing the thin wire 19, the thin wire 19 is deflected, and as shown in (C), it pushes the chip 5 or a part of the wire 19, and other parts of the wire 19 are scraped left and right, and the chip 5 also moves. By doing so, as shown in (D>), the thin line 19
The chips 5 escape from the hole. Due to such an interaction between the chips 5 and the thin wire 19, the chips 5 stall and draw a trajectory as shown by the dotted line E in (D), and do not scatter very far from the rotating body 11, as shown in FIG. As shown in FIG.
Since it stalls the chips 5 rather than preventing them from passing, the chips 5 do not accumulate between the rotating body 11 and the workpiece 4, and the heat of the chips 5 does not accumulate, causing a negative effect on the workpiece 4. Never give up.

By providing the thin wire 19 around the rotating body 11 in this way, when the spindle 13 is of the horizontal type as shown in FIG.
The present invention can be applied whether the device 3 is vertically oriented or diagonally oriented as shown in FIG. Also.

Applicable to various machines with different structures.

(Effects of the Invention) According to the present invention, since a plurality of elastic thin wires are provided around the rotating body to which the cutter is attached, it is not affected by the structure of the machine tool used, and can be used for any type of machining. Applicable to machines, and spindle orientation is horizontal or vertical 1
It can be applied to any case of M, and the range of application is very wide.

In addition, the present invention does not completely prevent the scattering of chips, but reduces the scattering energy by decelerating the chips in the thin wire portion, so that no chip clogging occurs. Because it is located around the area and close to the cutter, only a small amount of thin wire is required, and the thin wire will not interfere with machining, regardless of the shape of the workpiece or the cutting direction of the machined part. .

Further, the present invention has the advantage that it can be implemented at a very low cost because only a small amount of thin wire is required.

[Brief explanation of drawings]

FIG. 1 is a side view showing one embodiment of a milling tool according to the present invention, FIG. 2 is a sectional view thereof, FIG. 3 is a partial bottom view thereof, and FIG.
The figure is a side view of a machine tool showing an application example of the milling tool, FIG. 5 is an explanatory view of the operation of the present invention, and FIGS. FIG. 8 is a perspective view showing a milling tool having a conventional chip scattering prevention device.

Claims (1)

[Claims] A milling tool for face cutting, characterized in that a plurality of thin elastic wires are attached around a rotary body to which a cutter is attached, which collides with chips, causes them to pass through, and decelerates the chips.