CN201572969U

CN201572969U - Composite saw

Info

Publication number: CN201572969U
Application number: CN201020039378XU
Authority: CN
Inventors: 张大晟
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-08
Filing date: 2010-01-08
Publication date: 2010-09-08
Anticipated expiration: 2020-01-08

Abstract

The utility model provides a composite saw which comprises a substrate and a hard alloy knife blade or an ultra-hard composite knife blade. Saw teeth are arranged on the substrate, and the symmetrical edges of a saw back of the saw teeth adopt a tooth-shaped structure. The symmetrical edges of a knife edge of the hard alloy knife blade or the ultra-hard composite knife blade adopt a tooth structure inosculated with the tooth-shaped structure on the substrate. The tooth-shaped structure on the substrate and the tooth structure on the hard alloy knife blade or the ultra-hard composite knife blade have inosculated tooth form and are welded into a whole. The composite saw overcomes the disadvantage of a thin saw or an ultra-thin saw formed by the welding of the hard alloy knife blade or the ultra-hard composite knife blade and the steel substrate in the prior art that the knife blade can be likely to fall down in the sawing process due to poor welding firmness. The welding area of the hard alloy knife blade or the ultra-hard composite knife blade and the substrate is increased once, which can improve the impact resisting performance of the knife blade welded on the substrate, thereby achieving the purpose of effectively enhancing the welding firmness of the knife blade.

Description

A kind of compound saw

Technical field

The utility model relates to a kind of sawing metal and nonmetallic sawing cutter.

Background technology

The saw of present domestic saw industry has two big classifications: a class is a saw blade, promptly is shaped on the saw of several sawtooth at the disk periphery, and saw blade is located with the hole, and is installed in and carries out sawing workpieces on the saw blade lathe.Another kind of is saw blade, saw blade divides frame saw blade and bands for band again, frame saw blade is a microscler flat saw, the symmetry of hump is shaped on several orderly, different tooth pitches of arrangement (s) on one side, different tooth depths (h), the frame saw blade of the different back of tooth and different chip pocket types, this saw is installed in and carries out sawing workpieces on the buck saw lathe.Bands for band is a flat saw of ring-type, Yi Bian being shaped on several, the symmetry of hump arranges in order, and different tooth pitches (s), different tooth depths (h), the bands for band of the different back of tooth and different chip pocket types, this saw are installed in and carry out sawing work on the band saw lathe.

The material of above-mentioned sawing blade can be divided into high-speed steel, carbide alloy, superhard material three major types, wherein except that the high-speed steel blade be can not high-temperature soldering, carbide chip and superhard material blade all need with methods such as high-frequency weldings the matrix that blade is welded to saw to be got on, since be welding, just have welding fastness problem, the welding fastness is removed relevant with welding material and welding procedure, also relevant with bonding area and Welding Structure, and bonding area wherein and welding fastness are directly proportional.Particularly thin saw blade, thin saw blade or ultrathin saw bit, its contact-making surface with blade of ultra-thin saw blade is littler, and when the welding contact area is little to a certain degree the time, the welding fastness of blade just becomes a difficult problem of relatively giving prominence to.By carbide chip or superhard material composite blade and thin saw or the ultra-thin saw of steel matrix through being welded to form, the phenomenon that the welding fastness causes the blade that may drop in the sawing process inadequately easily takes place.

Summary of the invention

The purpose of this utility model is at existing thin saw blade, and thin saw blade or ultrathin saw bit, ultra-thin saw blade weld the fastness deficiency and a kind of compound saw that fastness is good, shock resistance is high that welds is provided.

The technical solution of the utility model is achieved in that compound saw comprises matrix and blade; Sawtooth is arranged, Yi Bian be tooth-shape structure on the matrix in the hump symmetry of sawtooth; The blade of blade symmetry on one side for matrix on the toothing that matches of tooth-shape structure.

The said blade of the utility model is carbide chip or superhard material composite blade.

Toothing on tooth-shape structure on the said matrix and carbide chip or the superhard material composite blade is triangle profile of tooth, trapezoidal toothed or rectangle profile of tooth, and wherein triangle comprises equilateral triangle, isosceles triangle or other difform triangles.

Toothing profile of tooth on tooth-shape structure on the said matrix and carbide chip or the superhard material composite blade is coincide integrally welded.

Sawtooth on the said matrix is the sawtooth of several orderly, different tooth pitches of arrangement (s), different tooth depth (h), the different back of tooth and different chip pocket types.

Compared with prior art, effect of the present utility model is: about the plane contact area that the welding contact area of matrix of the present utility model and carbide chip or superhard material composite blade can be more original doubles, so about the welding fastness also can correspondingly double.Profile of tooth of the present utility model is coincide the identical Welding Structure of Welding Structure and prior art plane relatively, the utlity model has better shock resistance.The utility model can obviously improve the welding fastness of blade on matrix, particularly has important function to improving the welding fastness of blade on thin saw and ultra-thin saw.

Description of drawings

The embodiment that provides below in conjunction with accompanying drawing is described in further detail the utility model.

Fig. 1 is the utility model saw blade structure structure chart.

Fig. 2 is the utility model frame saw blade structure structure chart.

Fig. 3 is the utility model bands for band structure structure chart.

Fig. 4 is the A place partial enlarged drawing of Fig. 1, Fig. 2, Fig. 3.

Fig. 5 is that the A of Fig. 4 is to view.

Fig. 6 is the B-B profile of Fig. 4.

Fig. 7 is the identical Welding Structure figure of the utility model embodiment 1 triangle profile of tooth.

Fig. 8 is the utility model embodiment 2 trapezoidal toothed identical Welding Structure figure.

Fig. 9 is the identical Welding Structure figure of the utility model embodiment 3 rectangle profiles of tooth.

The specific embodiment

Among Fig. 1, saw blade is made up of matrix 1 and carbide chip 2.The circumferential edge of matrix 1 is shaped on several and arranges orderly sawtooth, Yi Bian be tooth-shape structure in the hump symmetry of sawtooth; Carbide chip 2 blades symmetries on one side for matrix on the toothing that matches of tooth-shape structure.Toothing profile of tooth on tooth-shape structure on the matrix 1 and the carbide chip 2 is coincide integrally welded.

Among Fig. 2, be frame saw blade.Be shaped on several on one side in the symmetry of the hump 3 of the matrix 1 of frame saw blade and arrange orderly sawtooth, tooth-shape structure on the matrix 1 of frame saw blade and the toothing profile of tooth on the carbide chip 2 are coincide integrally welded.

Among Fig. 3, be bands for band.The symmetry of the hump 3 of bands for band matrix 1 is shaped on several on one side and arranges orderly sawtooth.Tooth-shape structure on the matrix 1 of bands for band and the toothing profile of tooth on the carbide chip 2 are coincide integrally welded.

Among Fig. 4, on the matrix 1 sawtooth is arranged, Yi Bian be tooth-shape structure 5 in hump 4 symmetries of sawtooth; The blade of carbide chip 2 symmetry on one side for matrix 1 on the toothing 6 that matches of tooth-shape structure 5.Tooth-shape structure 5 on the matrix 1 and toothing 6 profiles of tooth on the carbide chip 2 are coincide integrally welded.7 is the chip pocket of sawtooth.S is a tooth pitch, and h is a tooth depth, and α 0 is the primary clearance of sawtooth, and γ 0 is the sawtooth anterior angle.

Fig. 5, shown in Figure 6, the 1st, matrix 2 is carbide chips.B is the facewidth, and b is that the matrix of saw is wide, and b should be smaller than B, in case rub with kerf workpiece face during sawing.KrL is the left tool cutting edge angle of sawtooth, and KrL ' is left auxiliary angle, and KrR ' is right auxiliary angle.

Among Fig. 7, Yi Bian hump 4 symmetries of matrix 1 are triangle profile of tooth structure 5, on one side the blade of superhard material composite blade 2 symmetry be with matrix 1 on the lance tooth structure 6 that matches of triangle profile of tooth structure 5.Triangle profile of tooth structure 5 on the matrix 1 and lance tooth structure 6 profiles of tooth on the carbide chip 2 are coincide integrally welded.

Among Fig. 8, Yi Bian hump 4 symmetries of matrix 1 are trapezoidal toothed structure 5, on one side the blade of superhard material composite blade 2 symmetry be with matrix 1 on the stepped tooth structure 6 that matches of trapezoidal toothed structure 5.Trapezoidal toothed structure 5 on the matrix 1 and stepped tooth structure 6 profiles of tooth on the carbide chip 2 are coincide integrally welded.

Among Fig. 9, Yi Bian hump 4 symmetries of matrix 1 are rectangle tooth-shape structure 5, on one side the blade of superhard material composite blade 2 symmetry be with matrix 1 on the rectangular teeth structure 6 that matches of rectangle tooth-shape structure 5.Rectangle tooth-shape structure 5 on the matrix 1 and rectangular teeth structure 6 profiles of tooth on the carbide chip 2 are coincide integrally welded.

Claims

1. a compound saw is characterized in that: comprise matrix and blade; Sawtooth is arranged, Yi Bian be tooth-shape structure on the matrix in the hump symmetry of sawtooth; The blade of blade symmetry on one side for matrix on the toothing that matches of tooth-shape structure.

2. compound saw according to claim 1 is characterized in that: said blade is carbide chip or superhard material composite blade.

3. compound saw according to claim 1 is characterized in that: tooth-shape structure on the said matrix and the toothing profile of tooth on the blade are coincide integrally welded.

4. compound saw according to claim 1 is characterized in that: tooth-shape structure on the said matrix and the toothing on the blade are triangle profile of tooth, trapezoidal toothed or rectangle profile of tooth.