CN212793370U

CN212793370U - Double-boss slice cutting saw blade

Info

Publication number: CN212793370U
Application number: CN202021624260.3U
Authority: CN
Inventors: 钟宝文
Original assignee: Guangdong Ridong Tools Co ltd
Current assignee: Guangdong Ridong Tools Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-03-26
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a two boss thin slice cutting saw bits has the thinner outer marginal part that is used for installing the thick interior marginal part of saw bit and is fixed with the sword tooth, its characterized in that: the outer edge portion is formed to become thicker gradually from the inside to the outside. Because the utility model discloses the outer fringe part of two boss thin slice cutting saw bits is established into from inside to outside and is thickened gradually for the rigidity is stronger more far away from the center at the outer fringe part of saw bit, can effectively reduce the cutting swing of thin slice saw bit and promote the cutting impact resistance force of the sawtooth back of the body, prolongs the life of saw bit, improves the smooth finish of cutting section.

Description

Double-boss slice cutting saw blade

Technical Field

The utility model relates to a saw bit technical field specifically indicates two boss thin slice cutting saw bits.

Background

The double-boss sheet cutting saw blade is an improvement made by reducing the width of the cut, so that the width of the cut can be smaller, and the material waste is less. The inner edge of the flange for fixing the shaft of the cutting saw blade is still maintained with a certain thickness, and the outer edge for cutting the depth, to which the cutter teeth are fixed, is reduced in thickness, so that bosses are formed on both sides of the saw blade, thereby being called a double-boss thin sheet cutting saw blade. However, since the thickness of the entire outer edge portion of the saw blade is uniform from the inside to the outside, the thinned outer edge portion is not rigid enough, and cutting vibrations are likely to occur at high speed cutting, causing damage to the saw blade, and the vibrations become more severe as the distance from the center increases. The excessively thin outer edge portion serves as a base for welding and fixing the cutter teeth, which also causes a reduction in strength of the welded cutter teeth and facilitates tooth breakage.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can improve the two boss thin slice cutting saw bits of its base member rigidity intensity and sawtooth back of the body support intensity.

The technical scheme adopted for solving the technical problems is as follows: a double boss wafer cutting saw blade has a thicker inner edge portion for mounting the saw blade and a thinner outer edge portion fixed with cutter teeth, characterized in that: the outer edge portion is formed to become thicker gradually from the inside to the outside.

On the basis, the diameter of the heat dissipation hole of the saw blade is 12 mm.

On the basis, the bottom of the embedding groove of the saw blade with the embedded cutter teeth is arranged to be upwarped.

On the basis, the periphery of the shaft hole of the inner edge part is provided with a pre-breaking line with double key groove holes.

Adopt the utility model discloses the beneficial effect who brings: because the utility model discloses the outer fringe part of two boss thin slice cutting saw bits is established into from inside to outside and is thickened gradually for the rigidity is stronger more far away from the center at the outer fringe part of saw bit, can effectively reduce the cutting swing of thin slice saw bit and promote the cutting impact resistance force of the sawtooth back of the body, prolongs the life of saw bit, improves the smooth finish of cutting section.

Drawings

FIG. 1 is a schematic structural view of a double-boss wafer cutting saw blade according to the present invention;

FIG. 2 is a cross-sectional view of a prior art double boss foil cutting saw blade;

FIG. 3 is a cross-sectional view of the double-boss wafer cutting saw blade of the present invention;

fig. 4 is a magnified view of the saw teeth of the double-boss thin slice cutting saw blade of the present invention.

Detailed Description

As shown in fig. 1 to 4, a double-boss wafer cutting saw blade has a thicker inner edge portion 1 for mounting the saw blade and a thinner outer edge portion 3 to which cutter teeth 2 are fixed, in the present invention, the outer edge portion 3 is formed to become gradually thicker from the inside to the outside. That is to say, the radial cross section of the outer edge part 3 of the saw blade is in an inverted trapezoid shape, and the thickness of the outer edge part is thicker when the outer edge part is closer to the outer edge, so that the rigidity of the outer edge part 3 of the saw blade is stronger when the outer edge part is farther away from the center, and the cutting swing of the sheet saw blade and the impact resistance of the saw tooth back can be effectively reduced. Meanwhile, the area of the inlaid welding cutter teeth is remarkably increased, the welding strength of the cutter teeth is effectively enhanced, and the service life of the saw blade is prolonged.

In order to enhance the heat dissipation performance of the saw blade, usually, heat dissipation grooves are formed inwards in saw grooves among saw teeth at certain intervals, heat dissipation holes are formed in the extending ends of the heat dissipation grooves, and the diameter of each heat dissipation hole of the traditional saw blade is about 4 mm. And the utility model discloses the aperture of the louvre 4 of saw bit is 12mm, can show the heat dispersion that increases the sawtooth, reduces the heat altered shape of saw bit.

For further strengthening the inlaying strength of the cutter teeth 2, the utility model discloses the tank bottom 5 of the inlaying groove of the inlaying cutter teeth 2 of saw bit is established into and upwarps. The groove bottom 5 is a base part embedded at the bottom end of the cutter tooth 2, and the outer extension end of the groove bottom is slightly upwarped to hook the bottom end of the cutter tooth 2, so that the impact resistance of the cutter tooth 2 can be effectively enhanced, and the tooth falling can be prevented.

In fact, the existing circle axle of pivot of installation saw bit also has double key shaft, for the adaptability that improves the saw bit, the utility model discloses the pre-broken line 7 that has double key slot hole is opened to the periphery in the shaft hole 6 of the inner edge portion 1 of saw bit, and shaft hole 6 can directly suit circle axle, and just can suit double key shaft after breaking off with the fingers and thumb along pre-broken line 7.

Claims

1. A double boss wafer cutting saw blade has a thicker inner edge portion for mounting the saw blade and a thinner outer edge portion fixed with cutter teeth, characterized in that: the outer edge portion is formed to become thicker gradually from the inside to the outside.

2. The double offset foil cutting saw blade of claim 1, wherein: the aperture of the heat dissipation holes of the saw blade is 12 mm.

3. The double offset foil cutting saw blade of claim 1, wherein: the bottom of the inlaid slot of the inlaid cutter tooth of the saw blade is arranged to be upwarped.

4. The double-offset shim cutting saw blade according to any one of claims 1 to 3, wherein: the periphery of the shaft hole of the inner edge part is provided with a pre-breaking line with double key groove holes.