JPS6144808Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a concrete cutter that can be used for both flat and cross-cutting, and is particularly designed to improve handling and work efficiency.

Conventionally, concrete planing and iris cutting have been performed using separate cutters. Therefore, the work time is increased due to setup changes such as installation and removal of the cutter.

For these reasons, there has been a demand for improved workability by shortening setup changeover time, and a need has arisen for a concrete cutter that can be used for both flat and irises shavings.

Therefore, the present invention was developed in view of the above-mentioned points.Throw-away tips for plane cutting are arranged and fixed on the front side of the annular cutter body, and in addition to this, throw-away tips for cutting fleur-de-lis are arranged and fixed. A small number of rod-shaped holders equipped with tips are rationally incorporated into the main body to ensure flat and irises shavings in a short time.

Hereinafter, one embodiment of the concrete cutter of the present invention, which can be used for both flat and iris shavings, will be described with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes an annular cutter body, on the outer periphery of which are arranged and fixed throw-away tips 2 for plane cutting so as to be located on the front side, and in the center of the cutter body. , a center mounting hole 3 is drilled.

The throwaway tip 2 is arranged in a tip seat 6 of a locator 5 in the mounting groove 4 and fixed by wedge pieces 8, 8 with screws 7, as clearly shown in FIG. 3, for example. ing.

Further, a small number of radial mounting grooves 9 are recessed in the back side of the main body 1, and a rod-shaped holder 10 is inserted into and removed from the mounting groove 9 using, for example, a mounting bolt 11. installed as possible.

This holder 10 consists of a holding part 12 and a bulging head 13, and at the tip of the bulging head 13 there is a throw-away tip 15 for sharpening fleur-de-lis forming V-shaped cutting edges 14, 14. For example, it is fixed by a presser member 17 having left and right screws 16 as clearly shown in FIG.

In the radial direction of the main body 1, the bulging head 13 of this holder 10 protrudes greatly, and in the axial direction on the front side, the throw-away tip 15 for shaving the fleur-de-lis is at least as sharp as necessary for shaving the fleur-de-lis. It is located in a relationship where it protrudes by the amount of cut.

The thus configured concrete cutter that can be used for both flat and cross-cutting is used for cutting after removing the holder 10 when cutting a flat surface.

Therefore, when milling the fleur-de-lis, the cutter remains attached to the main shaft of the machine tool. In this case, the throw-away tip 15 for iris cutting rotates while drawing a large circle, carving a V-shaped groove in the front and back of the feed direction of the concrete, which is the work material.

In this example, 24 throw-away tips 2 for plane cutting are incorporated, and the outer diameter of the cutting edge is
It is set to 480 mm, and four throw-away tips 15 for iris shaving are incorporated, and the outer diameter of the cutting edge is set to 680 mm. The results of flat and cross-cutting with this type of cutting edge configuration are as follows:
A good flat surface and fleur-de-lis were formed, the working time was greatly shortened, and the effects on handling and machinability were particularly remarkable.

As explained above, the present invention is a concrete cutter in which a throw-away tip for plane cutting and an throw-away tip for cutting fleur-de-lis are rationally incorporated so that it can be used for both plane cutting and cross-cutting. Because it is,
This type of work has the advantage of significantly shortening the working time and improving the finishing accuracy.

[Brief explanation of drawings]

Fig. 1 is a front view of the main parts of an embodiment of the concrete cutter of the present invention which can be used for both flat and irises shavings, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is a cross-sectional view taken along the - line in Fig. 1. The figure is a partial top view of FIG. 1, and FIG. 4 is a sectional view taken along the - line in FIG. 2. 1... Cutter main body, 2... Throwaway tip for plane shaving, 9... Mounting groove, 10... Holder, 15... Throwaway tip for iris shaving.

Claims (1)

[Claims for Utility Model Registration] On the front side of the annular cutter body 1, throw-away tips 2 for planing are arranged and fixed, and apart from this, a small number of throw-away tips 15 for cutting fleur-de-lis are arranged and fixed. A holder 10 in the shape of a rod is a concrete cutter that is used for both flat and eyelid shavings and is incorporated into the main body 1, and the holder 10 has a holding portion 12 recessed in the back side of the main body 1. A bulging head 13, which is removably attached to the mounting groove 9 and is equipped with a throw-away tip 15 for sharpening the irises, protrudes more than the main body 1 in the radial direction of the main body 1, and also extends from the front side of the main body 1. In the side axial direction, the throw-away tip 15 for cross-cutting, which has V-shaped cutting edge ridges 14, 14, is positioned so as to protrude at least by the depth of cut required for cross-section. A concrete cutter that can be used for both flat and irises shavings.