CN2091196U

CN2091196U - Saw blade

Info

Publication number: CN2091196U
Application number: CN 91201989
Authority: CN
Inventors: 祁崇武
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-02-07
Filing date: 1991-02-07
Publication date: 1991-12-25

Abstract

The utility model discloses a self-cooled saw blade, which belongs to a sawing tool, comprising saw teeth and a saw blade body. When the object whose diameter process strictly prohibits using cooling liquid is sawn, the generated cutting heat and friction heat makes the cutting ability of the saw teeth of the common saw blade drop down soon, so that the cutting process is difficult to be continued. The structure of the saw teeth of the utility model is changed, so the cutting heat and the friction heat can be distributed in time, and the object can also be cut as carried. The utility model has the advantage that the temperature of the saw blade and the saw teeth can be lowered without adding cooling liquid. The saw blade is applied to cutting the object whose process strictly prohibits using cooling liquid, such as graphite refractory.

Description

Saw blade

The utility model relates to a kind of saw blade, and it belongs to cutting tools, comprises sawtooth and saw bit matrix.

In sawing processing, refractory material in widely used graphite material, the metallurgical industry in some materials such as the mechanotronics is arranged, forbid to make water or other cooling fluid to be cooled off, therefore, heat in metal cutting and frictional heat that this type of material workpiece is produced in sawing, workpiece is given in part conduction, and most of conduction is given cutter and accumulated among the smear metal.The present saw blade that uses not have the function of heat radiation and scrap fallaway, produces between smear metal and workpiece, the saw blade and repeats friction, and like this, the temperature of workpiece and saw blade constantly raises, and causes the very fast decline of sawing ability of sawtooth, is difficult to proceed sawing and processes.

The purpose of this utility model provides a kind of saw blade, in sawing processing, can cool off voluntarily, and timely scrap fallaway, thereby the service life of prolongation saw blade.

The utility model purpose reaches by following measure: the utility model saw blade is to utilize the basic principle of object thermal conductivity and the mobile heat radiation of air to design, and it comprises saw bit matrix and sawtooth two parts.Saw bit matrix is circular; Sawtooth is the long cavity of a both ends open, on the both sides of one end and the end face cutting blade is arranged, and the bottom surface is the identical arc of radian and saw bit matrix edge, and tooth width equates with saw bit matrix thickness, is distributed in the saw bit matrix edge equally spacedly.

The utility model advantage compared to existing technology is as follows:

1. adopt the cavity type sawtooth smear metal in time can be got rid of by cavity, the generation of the heat of reducing friction.

2. because the chamber wall of sawtooth plays the heat loss through conduction effect, can reduce heat in metal cutting.

3. saw blade has self-cooling function, has solved a sawing processing difficult problem of forbidding to use the cooling fluid material.

The explanation of accompanying drawing drawing:

Fig. 1 is a circular saw blade matrix saw blade schematic diagram;

Fig. 2 is a groove shape saw bit matrix saw blade schematic diagram;

Fig. 3 is the A-A view.

1 is saw bit matrix among the figure, the 2nd, and sawtooth, the 3rd, cutting blade.

Details are as follows in conjunction with the accompanying drawings for the utility model: the utility model saw blade is made up of saw bit matrix 1 and sawtooth 2 two parts.Sawtooth is the long cavity of both ends open, and cutting blade 3 is arranged on the both sides of one end and the end face, and tooth width equates that with saw bit matrix thickness the bottom surface is the arc that coincide with saw bit matrix edge radian, and sawtooth is covered with equally spacedly at the saw bit matrix edge.

The saw bit matrix edge of present embodiment saw blade be full circle shape as shown in Figure 1, also can adopt saw bit matrix that each jaggy pitch place is groove as shown in Figure 2.The end face of sawtooth--cavity is a plane (also other as end faces such as arch, semicircle or indentations), can have aperture on the sidewall of cavity and the end face, to strengthen radiating effect.The both sides of sawtooth one end and the cutting blade on the end face, the material that requirement is adopted hardness, thermal conductivity is good, heat-resisting such as the monocrystalline of diamond or cubic boron nitride, the cutting blade of present embodiment is to adopt diamond monocrystalline (also available cubic boron nitride monocrystal) to be plated on the both sides of sawtooth one end and the end face to form, and also available diamond complex or cubic boron nitride complex are welded on the end face of sawtooth one end as cutting blade.The sawtooth Material Selection, require its thermal diffusivity good, intensity such as steel, copper, aluminium alloy etc. are arranged, present embodiment adopts copper sawtooth, it is welded on equally spacedly makes the utility model saw blade on the saw bit matrix edge.

The utility model saw blade is in sawing processing, the heat that cutting of saw blade cutting blade and friction workpiece produce, conduct as quick as thought to sawtooth with the good thermal conductivity of diamond--cavity, saw bit matrix, by the chamber wall heat is dispersed in the air, cavity carrying in time simultaneously contains the smear metal of a large amount of heat in metal cuttings, make smear metal in atwirl cavity, be subjected to passing the effect of air-flow in the chamber and lower the temperature, thereby reduce heat to workpiece, cutting blade repeat conduct again, guarantee that saw blade does not need cooling fluid and cooling effect voluntarily.

Claims

1, a kind of saw blade that comprises saw bit matrix and sawtooth, it is characterized in that sawtooth is the long cavity of a both ends open, on the both sides of one end and the end face cutting blade is arranged, the sawtooth bottom surface is the arc that coincide with the saw bit matrix radian, is distributed in the circular saw blade matrix border equally spacedly.

2, saw blade according to claim 1 is characterized in that cutting blade is diamond list product or the cubic boron nitride monocrystal that is plated on the sawtooth.

3, saw blade according to claim 1 is characterized in that cutting blade is diamond complex or the cubic boron nitride complex that is welded on the sawtooth one end end face.