KR20100012443A - Circular cutter for cutting of nonferrous metal - Google Patents

Abstract

PURPOSE: A circular cutter for non-ferrous metal cut is provided to cut soft materials including non-ferrous metal and plastic material by minimizing the frictional resistance between the cut surface and the tooth tip. CONSTITUTION: A circular cutter for non-ferrous metal cut comprises tips(13) formed on saw teeth(12). The saw teeth are formed on the perimeter of a disc body(10). The tip includes a stepped cutting edge(13a) with a step(13b) cut out on one side so as to cut a material only on the other side.

Description

Circular cutter for cutting of nonferrous metal

The present invention relates to a non-ferrous metal cutting circular cutter for cutting aluminum or synthetic resin system, and more specifically, to provide a step cutting blade alternately alternately with the tips of the saw blades formed on the outer peripheral surface of the disc body. The frictional resistance is reduced, and thus high speed cutting is possible, as well as the cutting tolerance is precise and the cutting surface is smooth, and it relates to a circular cutter for cutting non-ferrous metal, which does not require a separate surface processing.

In general, there are a variety of cutters for cutting the base material to a predetermined size, of which a disk-shaped round saw, that is, a circular cutter, is used when cutting a relatively thick thick plate or bar.

Such a circular cutter is provided with a disc shaped main body, and a plurality of teeth are provided at regular intervals on the outer circumferential surface of the main body. Tooth of the circular cutter should be provided in a suitable shape structure according to the material to be cut, forming a mainstream for cutting steel.

In general, a circular cutter for cutting steel is largely divided into a tooth provided with a material of the main body itself, and welded by providing a material different from the main body, that is, a cemented carbide that is stronger than the main body.

The former circular cutter is only to change the material of the main body according to the material to be cut, in particular, when the cemented carbide is provided, the material itself is expensive and there is a problem that is not practical.

Proposed to improve the problem of the circular cutter is proposed to provide a saw blade on the outer peripheral surface of the main body of the saw blade provided with a cemented carbide than the main body.

In Korean Patent Laid-Open Publication No. 1997-25810, saw blades are provided on an outer circumferential surface of a disc-shaped body, and tips are provided for each saw blade, respectively. It is characterized by arranging the clearance angle and arranging the blade thickness at a predetermined ratio on the land in a staggered direction with a pitch interval.

The circular cutter of the disclosed patent publication configured as described above prevents continuous friction when cutting the workpiece by a tip having a leading edge, an inclination angle, a front tilt angle, a side center angle, and a side clearance angle. It was to reduce the warpage to smooth the cut surface.

However, in the circular cutter as described above, the installation angle for each tip provided on the outer peripheral surface of the main body is provided in a straight line (parallel line) with respect to the axis on which the circular cutter is mounted, that is, the centerline direction. As a result, the cutting is simultaneously performed on both sides of the tip, and thus, the cutting resistance may be increased rapidly, especially when cutting at a high speed, and such an increase in resistance may occur due to the bending deformation of the main body, resulting in a smooth cutting surface.

In particular, when cutting relatively soft materials such as nonferrous metals, such as aluminum, copper, and synthetic resins, the cutting feed rate is greater than the cutting speed of steel, resulting in a rougher cutting surface. Since the work time as well as the processing cost had to be increased, there was a problem.

The present invention has been researched and developed in order to solve the conventional closed ends and problems as described above, the object is to provide a stepped cutting blade that is cut only on one side of the tip of the saw blade formed on the outer peripheral surface of the disc body and this step cutting By alternately arranging blades alternately with neighboring tips, frictional resistance is reduced when cutting soft materials of nonferrous metals or synthetic resin systems, which enables high-speed cutting and precise cutting tolerances and smooth cutting surfaces. It is to provide a circular cutter for cutting nonferrous metals that eliminates the need for surface processing.

In order to achieve the above object, the present invention provides a non-ferrous metal cutting circular cutter for each saw blade formed on the outer peripheral surface of the disc body, the tip of the saw blade is cut off the other side so that the cutting is made only on one side Stepped cutting blades are provided to form a stepped jaw cutting edge is characterized in that are arranged alternately alternately with the tip adjacent to each other.

In the non-ferrous metal cutting circular cutter according to the present invention, the tip of the saw blade is characterized in that the inclination angle is twisted at a predetermined angle with respect to the center line direction of the disc body. The inclination angle is better so as to facilitate the discharge of the cutting chip, but preferably 5 to 7 °.

In addition, the tip of the saw blade is preferably provided with industrial diamond in order to ensure a smooth cutting surface as well as a cutting tolerance of 0.02 ~ 0.03 mm.

Circular cutter for cutting non-ferrous metal according to the present invention provides a non-ferrous metal cutting blade formed by cutting only one side of the tip of the saw blade formed on the outer peripheral surface of the disc body, and the non-ferrous metal cutting blade alternately arranged with the adjacent tips alternately In addition, the frictional resistance is reduced when cutting the soft material of the synthetic resin system, which enables the high speed cutting and the cutting surface is precise but the cutting surface is smooth, thus eliminating the need for additional surface processing.

Hereinafter, the non-ferrous metal cutting circular cutter of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a perspective view schematically showing a circular cutter for cutting non-ferrous metal according to an embodiment of the present invention, Figure 2 is a perspective view showing in detail the extract of the saw blade which is the main part of the present invention, Figure 3 and Figure 4 Front view and top view.

As shown in the figure, the non-ferrous metal cutting circular cutter of the present invention is provided with a disc body 10 having a shaft hole 11 for fixing the rotary shaft in the center, a plurality of outer peripheral surface of the disc body 10 The saw blades 12 are provided at regular intervals, and each of the saw blades 12 is provided with a tip 13, respectively.

The tip 13 of the saw blade 12 is provided with a step cutting blade 13a formed by cutting the other side to form a step 13b so that cutting is performed only on one side, and the step cutting blade 13a is adjacent to each other. It is arranged alternately with (13).

The step 13b is formed in the middle of the tip 13, and the height thereof is advantageously formed to a certain extent, but the cutting step 13a of the tip 13 when the step 13b is formed too large is advantageous. Since it may be damaged by the overload applied to it, preferably 0.1 to 0.5 mm is sufficient.

In addition, the tip 13 of the saw blade 12 is provided with an inclination angle θ twisted at a predetermined angle with respect to the direction of the center line of the disc body 10, the inclination angle θ is the tip 12 of the saw blade 12 In order to facilitate the discharge of the cutting chip to be cut by), it is preferable to provide at 5 to 7 °.

Tip 13 of the saw blade 12 is preferably made of cemented carbide or industrial diamond material that is stronger than the disc body 10. In particular, the tip 13 of the saw blade 12 may be provided with industrial diamond having a thickness of 1 mm and a height of about 4 mm. In this case, a cutting tolerance of 0.02 to 0.03 mm as well as a smooth cutting surface may be obtained. It is preferable because it can.

Circular cutter for cutting non-ferrous metal according to the present invention configured as described above is equipped with a disc body 10 so as to be fitted into the shaft hole (11) in the rotary shaft of various machine tools or cutters, as in the prior art. At this time, the tip 13 should be positioned in front of the saw blade 12 of the disc body 10 in the direction of rotation of the rotary shaft.

In this state, the base material to be cut is mounted using a vise or the like so as not to flow on the table, and then when the rotary shaft is rotated by applying power to various machine tools or cutters, the disc body 10 mounted on the rotary shaft is also rotated. Will be.

When the disc body 10 is rotated at a predetermined rotation speed along with the rotation shaft, the saw blade 12 provided on the outer circumferential surface of the disc body 10 is gradually pressed or moved while touching the base material to be cut. The tip 13 of 12) cuts the base material to be cut.

The cutting process of the base material is cut by a tip 13 provided for each saw blade 12, but the stepped cutting edge 13a formed on one side of the tip 13 cuts one side of the base material and then is located behind the base material. The stepped cutting edge 13a formed on the other side of the tip 13 is to cut the other side of the base material. Since this cutting process is repeated continuously and is cut.

Since the tip 13 is twisted at an inclination angle θ at a predetermined angle with respect to the center line direction of the disc body 10 so that the step cutting edge 13a is positioned at the tip, the cutting of the base material cut by the step cutting edge 13a is performed. The chip is guided and is easily discharged.

Therefore, the frictional resistance between the cutting surface of the base material to be cut and the tip 13 provided on the saw blade 12 of the disc body 10 is minimized, and thus, it is possible to cut non-ferrous metals or synthetic resin systems at high speed. Smooth cutting surface eliminates the need for additional surface finish.

In other words, when the tip 13 of the saw blade 12 is provided with industrial diamond, it is possible to obtain a smooth cutting surface as well as a cutting tolerance of about 0.02 to 0.03 mm.

The present invention is usefully used for a cutter for cutting a material into a circular cutter having a disk shape, and particularly useful for a circular cutter for cutting a non-ferrous metal, for example, aluminum, copper alloy, or synthetic resin, which is a relatively soft material.

1 is a perspective view schematically showing a circular cutter for cutting non-ferrous metal according to an embodiment of the present invention.

Figure 2 is a perspective view showing in detail the extract of the saw blade which is the main part of the present invention.

3 is a front view of FIG. 2.

4 is a plan view of FIG. 2.

<Explanation of symbols for the main parts of the drawings>

10: disc body

11: celebrate

12: saw blade

13: tips

13a: step cutting edge

13b: step

Claims (3)

In the circular cutter for cutting non-ferrous metal each tip is provided for each saw blade formed on the outer peripheral surface of the disc body, The tip of the saw blade for cutting non-ferrous metal, characterized in that the cutting step is provided with a stepped cutting blade is formed by cutting the other side so that only cutting is made on one side, the step cutting blades are alternately arranged alternately with the neighboring tips. Circular cutter. The method of claim 1, The tip of the saw blade is a non-ferrous metal cutting circular cutter, characterized in that the inclination angle is twisted at a predetermined angle with respect to the direction of the center line of the disc body. The method according to claim 1 or 2, The tip of the saw blade is a non-ferrous metal cutting circular cutter, characterized in that the tip is provided with industrial diamond.

Images