JPS6020150B2 - Diamond saw for cutting stone etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Some diamond saws used to cut stones, etc. have a diameter of 3 mm and weigh over 600k9. It is not an easy task to attach and detach the machine to the processing machine, and especially when it comes to equipment, even a slight degree of laxity cannot be tolerated.
This work requires a great deal of effort and a high level of skill.

Furthermore, such a large-diameter steel plate substrate requires a high level of flatness that can be used as a substrate, so a large amount of man-hours are required to correct the distortion. A square plate of the same size is used as the material, and its weight is approximately 50% greater than the finished state of the disk, so the material is also expensive. Conventionally used large diamond saws for cutting stones, etc. have technical and economical defects as mentioned above, but these defects are due to the weight, which is a common defect of large diamond saws. The point is that it is too heavy.

The present invention relates to a diamond saw for cutting stones, etc., which has been developed to alleviate the above-mentioned problems and is significantly lighter in weight than conventional saws. In the present invention, in order to solve the problem of being too heavy, which is a drawback of large diamond saws, we have developed an assembly method instead of the conventional method of making a single board. We decided to use a substrate.

A diamond saw using this prefabricated circuit board consists of a plurality of tips, a prefabricated outer ring to which the tips are attached, plate-like spokes, and a hub part for attaching the diamond saw to the machine. The outer periphery is
It shall be fixed by means of bolts, rivets, etc. to the outer and inner ends of the plate-like spokes arranged in a key-like shape, respectively.

Since the diamond saw of the present invention is assembled by joining a plurality of small parts as described above, the parts adjacent to the outer spokes do not use wide, heavy, and difficult-to-handle steel plates, which greatly reduces production costs. Since it is hollow, the weight of the steel plate corresponding to the area occupied by this hollow part is 0, so the weight of the diamond saw as a whole is also lighter.
It has the advantage of being easier to handle and reducing material costs. As an example, a case of a diamond saw with a diameter of three blades will be explained. Conventionally, diamond saws with a diameter of 3 mm have used a steel plate with a thickness of 11 mm as the substrate, and its weight is 606 k9.
reach. Now, if this board is changed to the method of the present invention, the width of the outer ring will be 300 mm, the width of the plate spokes will be 40 mm,
When the thickness of each plate is 11 and the number of spokes is 6, calculate the area of the hollow part between the spokes. To simplify calculations, the outer diameter of the hub is set to 40 mm.
If the dimensions of the spokes are 40 mm wide and 1000 mm long, the weight will be reduced by approximately 150 k9, 24.7 because the space between the spokes is hollow and the steel plate is eliminated.
%become. Furthermore, by making some of the spoke plates corrugated, the spoke plates are reinforced and thinner plates can be used, further reducing the overall weight.
The structure of the diamond saw of the present invention will be explained below with reference to the drawings.

Figure 1 is a partial front view, Figure 2 is a partial cross-sectional view, and Figure 3 is a partial cross-section of a waveform when a part of a plate-like spoke is provided with a radially wave-shaped cross-section, and this waveform is triangular. , square, trapezoid, or any other shape. Fig. 4 is a plan view showing an example of a case where a plurality of recesses are provided on the front and back of the spoke in an arbitrary shape and by an arbitrary arrangement method instead of providing a wave-shaped cross section on a part of the plate-shaped spoke, and Fig. 5 is a sectional view thereof. FIG. 6 is a partial front view in the case where slots are provided between the tips of the outer ring. In Fig. 1, 1 is the tip, 2 is the outer ring, 3 is a plate-shaped spoke, 4 is one of the waves of the wave-shaped cross section provided on a part of this plate-shaped spoke, and 5 is the center of the diamond saw. The hub is shown, and the plate-like spokes 3
The inner end 6 (FIG. 2) of is secured using conventional methods. Reference numeral 7 denotes a tongue-shaped portion provided on the inner periphery of the outer ring 2, to which the outer end portions 8 of the plate-shaped spokes 3 are fixed using a general method.

9 shows a state in which the fan-shaped plate 2 constituting the outer ring and the adjacent fan-shaped plate 2' are consolidated using a general method. shall consist of:

The plate-shaped spoke main body 3 and the outer end portion 8 may be made separately and welded together, or the outer end of the wavy portion of the spoke may have a structure in which it is extended into a fan flat shape instead of having a wavy cross section. FIG. 2 is a sectional view of FIG. 1, and the meaning of each signal is the same as described in the explanation of FIG. 1. FIG. 3 shows an example of a corrugated cross section formed on a part of the plate-like spoke 3, and the wave shape can be a wave shape having an arbitrary cross section such as triangular, trapezoidal, square, or round. Figures 4 and 5 show that instead of providing a part of the plate-shaped spoke with a wave-shaped cross section as shown in Figure 3, recesses 10 of arbitrary shapes are provided on both the front and back sides of the plate-shaped spoke as shown by 11 and 12. It shows the aspect.

As shown in Figures 3, 4, and 5, forming a part of the plate-like spoke into a corrugated shape or providing a concave portion on its surface is a method of reinforcing the plate-like spoke or artificially increasing its strength. The purpose of this invention is to increase the thickness of the steel plate used for this part so that a thin material can be used, thereby helping to reduce the weight, which is the main point of the present invention. Fig. 6 shows an embodiment in which a slot 13 is provided between the tips on the outer circumference of the outer ring 2''.This is because the material to be cut is a hard material and a large amount of power is consumed for cutting. In this case, the frictional heat at the tip increases, and the increased temperature in this area is transmitted to the outer ring, causing thermal expansion at the outer periphery of the outer ring, which can cause large deformation of the outer ring. As is clear from the above explanation,
The diamond saw of the present invention does not consist of chips arranged around the outer periphery of a single board as in the conventional case, but the part corresponding to this board is assembled into an assembly type outer ring, plate-like spokes, and a hub. The weight is about 25% lighter than existing ones, and there is no need to use a wide steel plate material during production, so production costs are significantly reduced and the material The present invention can be said to be an economically advantageous invention since the cost is significantly lower and the handling of the product is easier.

[Brief explanation of the drawing]

Fig. 1, partial front view, Fig. 2, sectional view of the same as above, Fig. 3, partial sectional view of the corrugated section of the plate-shaped spoke, Fig. 4, a plan view of the recess provided in a part of the plate-shaped spoke, and Fig. 5. FIG. 6 is a partial sectional view of the spoke in FIG. 4, and FIG. 6 is a partial front view when slots are provided on the outer circumference of the outer ring. 1...Tip, 2,2'...Outer ring, 3...
...Plate spoke, 4... Part of the corrugated part, 5.
...Hub, 6...Lower end of spoke, 7...
・Tang-shaped part provided on the inner periphery of the outer ring, 8... Upper end of the spoke, 9... Joint part when the outer ring is erected, 10
...One of the recesses provided in a part of the spoke (Fig. 4), 11...A partial cross-sectional view of the spoke when recesses are provided on both the front and back surfaces of the spoke, 12 ″...
...Part of the outer ring with slots on the outer periphery, i3...
...Suriwari. 1 charm 2 foot 3 pictures 4 pictures 〆; 4★5

Claims (1)

[Claims] 1. A diamond saw in which a plurality of chips made by sintering a mixture of diamond abrasive grains and their binding material are arranged and fixed on the outer periphery of a substrate so as to maintain a constant interval. In this case, the substrate has an outer ring to which the chip is directly fixed,
A diamond saw for cutting stones, etc., comprising a central hub part and plate-like spokes arranged radially to connect the outer ring and the hub part. 2. The diamond for cutting stones, etc. as claimed in claim 1, wherein the outer ring is formed by sequentially tightening a plurality of adjacent fan-shaped discs to form an annular body using a conventional method. So. 3. A diamond saw for cutting stones, etc. as set forth in claim 1, wherein a slot is provided on the outer circumferential portion of the outer ring, which corresponds to the intermediate portion of the chip disposed and fixed on the outer circumferential portion of the outer ring. 4. In order to connect the inner peripheral part of the outer ring and the central hub part of the diamond saw, the plate-like spokes arranged in a radial manner have a radially corrugated cross section in a part thereof, and A diamond saw for cutting stones, etc. as claimed in claim 1, wherein one end of the saw is fixed to the inner circumference of the outer ring and the other end is fixed to the hub. 5. A diamond saw for cutting stones, etc. according to claim 1, wherein a plurality of recesses of arbitrary shapes are arranged at arbitrary positions on both the front and back surfaces of the plate-shaped spoke.