JPH0512084B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a diamond chip mounting structure for a diamond chip saw, and is particularly characterized in that the diamond chip can be easily attached and removed.

(Prior Art) A diamond tip saw is a saw blade made of a steel endless band or a steel disc, with diamond tips attached at equal intervals. Diamond chips have traditionally been attached to saw blades by welding, but in recent years this has been replaced by adhesives and other means other than welding. In this method, a diamond chip is welded in advance to the top surface of a mounting piece with a U-shaped cross section, and then the mounting piece is clamped at a predetermined position on the saw blade.
This is attached by means other than welding, such as gluing or screwing, which completely eliminates the problems caused by welding, and provides a diamond chip layer with high cutting efficiency and long life. (Japanese Patent Application Laid-open No. 58-94914).

By the way, the above-mentioned method of attaching the diamond chip is easier to attach than the previous method, and the adhesion force between the attachment piece and the saw blade is weaker, but it still adheres with considerable strength. Therefore, when a diamond chip becomes damaged or worn out, it is difficult to remove it and replace it with a new one.

(Means for Solving the Problems) In the present invention, an engagement piece is attached in advance to a predetermined position of the saw blade, and by engaging the attachment piece with this, the fixing force of the attachment piece to the saw blade is reduced. This makes it possible to make the blade weaker and to simplify the operation of attaching and detaching the attachment piece to the saw blade, thereby making it easier to attach and replace the diamond tip.

The present invention will be specifically described below based on illustrated embodiments.

In FIG. 1, reference numeral 1 is a diamond chip, and 2 is a mounting piece. These are similar to the conventional ones described above, except that the mounting piece 2 is formed to engage with an engaging piece 4, which will be described later, and the mounting piece 2 is made of two metal plates. The diamond chips 1 are fixed to the diamond chips 1 at intervals that are the same as or slightly wider than the thickness of the saw blade 3, which is a steel endless band or a steel disc to which the diamond chips 1 are to be attached.

There are no particular limitations on the method of fixing the mounting piece 2 to the diamond chip 1. In short, it is sufficient if it is made up of two plate-shaped materials sandwiching both sides of the saw plate 3. For example, when forming the diamond chip 1, it can be formed integrally with the diamond chip 1, or it can be formed from a metal plate material. It is attached to the diamond chip 1 by bending it into a U-shaped cross section and welding its upper surface to the diamond chip 1.

To attach this diamond chip 1 to the saw blade 3, first, the engaging pieces 4 are attached at predetermined positions on the saw blade 3 at regular intervals. Then, the attachment piece 2 is attached to the saw blade 3 on the front side of the engagement piece 4 in the direction in which the saw blade 3 moves.

The engagement piece 4 is formed using a metal plate material having approximately the same thickness as the attachment piece 2. For example, the engagement piece 4 is formed by bending a metal plate material into a U-shaped cross section, and It is appropriate to clamp it at a predetermined position on the blade 3 and attach it by adhesive or other suitable method.

Furthermore, the engaging pieces 4 are attached to the saw blade 3 at equal intervals, and FIGS. 2 and 3 show an example in which the attachment is simplified. The engaging pieces 4 are fixed in advance at fixed intervals to the connecting strips 5 having a width of . When attaching the engaging piece 4 to the saw blade 3, the engaging piece 4 is sandwiched between the saw blade 3 in the same manner as shown in FIG. Then, the engaging pieces 4 and the connecting strips 5 are attached to the saw blade 3 at equal intervals.

By the way, as shown in FIG. 1, the saw blade 3 is rotated in the direction F, and the diamond chip 1 is
When the diamond chip 1 is cut into a material to be cut, a pressing force P and a cutting resistance R by the material to be cut act on the diamond chip 1. Therefore, the cutting resistance R generates a force that tends to cause the attachment piece 2 to shift backward in the direction of movement of the saw blade 3, but this force is absorbed by the engagement piece 4.
It is sufficient to prevent the mounting piece 2 from falling off the saw blade 3 by supporting it by a force other than the cutting resistance, such as an external force applied to the mounting piece 2 before the cutting operation. .

Moreover, the engagement piece 4 has the front side in the direction of movement of the saw blade 3 inclined in a direction sandwiched between the rear side in the direction of movement of the saw blade 3 and the rear side in the cutting direction of the tire cut tip 1. Mounting piece 2
is the rear side of the saw blade 3 in the direction of travel, and the rear side of the saw blade 3 in the direction of travel and the diamond tip 1.
It was formed so as to be inclined in a direction sandwiched between the rear side and the rear side of the notch direction. That is, by doing this, as shown in FIG. 3, by engaging the front surface of the engaging piece 4 and the rear surface of the mounting piece 2, when cutting is applied to the mounting piece 2 in the r direction, Since a component force in the p direction acts on the attachment piece 2, the attachment piece 2 is pressed against the saw blade 3 and is held even more firmly, making it difficult for it to fall off.

(Effects of the Invention) As described in detail above, the present invention has an engaging piece attached to a predetermined position of a saw blade, and a diamond chip with two diamond chips spaced apart from each other with an interval equal to or slightly wider than the thickness of the saw blade. The diamond chip is attached to the saw blade by fixing the mounting piece and sandwiching this mounting piece to the front side of each engaging piece of the saw blade in the direction of movement of the saw blade. By engaging with the coupling piece, the tendency to move backwards is stopped, so that only a very weak force is needed to secure it to the saw blade. Moreover, the engagement piece is formed so that the front side in the direction of movement of the saw blade is inclined in a direction sandwiched between the rear side in the direction of movement of the saw blade and the rear side in the cutting direction of the diamond chip. is formed by slanting the rear side of the saw blade in the direction of travel in a direction sandwiched between the rear of the saw blade in the direction of travel and the rear of the cutting direction of the diamond chip, and this mounting piece is used to attach the engagement piece of the saw blade. The front surface of the engagement piece and the rear surface of the attachment piece were engaged with each other to attach the saw blade to the front side in the direction of movement of the saw blade.
When the mounting piece is pressed against the engagement piece during cutting, the mounting piece will be pressed against the saw blade.
It is held even more firmly and is less likely to fall off.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a first embodiment of the present invention, Fig. 2 is a perspective view showing a state in which an engagement piece is attached to a connecting strip, and Fig. 3 is a perspective view showing a second embodiment of the invention. It is. 1; Diamond chip; 2; Mounting piece; 3; Saw blade; 4; Engaging piece; 5; Connecting strip.

Claims (1)

[Claims] 1 At a predetermined position on the saw blade of the steel endless band or steel disc, place the front side of the saw blade in the direction of travel in the direction sandwiched between the rear of the saw blade in the travel direction and the rear of the diamond chip in the cutting direction. The slanted engagement pieces are attached at regular intervals, and two attachment pieces are fixed to the diamond tip with an interval equal to or slightly wider than the thickness of the saw blade. The rear side of the saw blade is inclined in the direction sandwiched between the rear side of the saw blade in the traveling direction and the rear side of the cutting direction of the diamond chip, and this attachment piece is attached to the saw blade at the position where the engagement piece of the saw blade is attached. A mounting structure for a diamond chip, characterized in that the diamond chip is mounted by being sandwiched between the front side of the engaging piece and the rear face of the mounting piece.