CN104149208B - A kind of high strength low noise diamond circular saw film base body - Google Patents

Abstract

The invention discloses a kind of high strength low noise diamond circular saw film base body, comprise saw bit matrix, center at saw bit matrix is provided with centre bore, on the cylindrical of two upper and lower sagittal planes of saw bit matrix, offer uniformly at intervals partly penetrate tank, the degree of depth that partly penetrates tank is the half of saw bit matrix thickness. Be provided with cutter head at every two adjacent sawtooth that form between tank that partly penetrate, all cutter heads that are positioned at same sagittal plane form a circle; On the upper sagittal plane of whole matrix and lower sagittal plane, be all provided with a circle cutter head. High strength low noise diamond circular saw film base body provided by the invention, has following beneficial effect: 1. add supplemental support, increase incision stability. 2. because tank is for partly penetrating tank, cutter head incision thickness reduces by half, and reduces incision and impacts. 3. optimize sawtooth stressed, improve fatigue life. 4. reduce the modal density of diamond circular saw film base body, reduce radiated noise.

Description

A kind of high strength low noise diamond circular saw film base body

Technical field

The present invention relates to a kind of high strength low noise diamond circular saw film base body, belong to cutting tool technical field.

Background technology

Diamond disc is widely used in the cutting of stone material, pottery, concrete etc. Traditional diamond circular saw film base body is as figureShown in 4, on cylindrical, have equally distributed sawtooth, between each sawtooth, have " U " shape or " R " shape penetrability tank. SawtoothPeriodically cut out as interrupted process, bear larger impact in cut process, working angles is unstable, tooth root portionStress is concentrated, and is prone to fatigue crack. This external flume cuts off the periphery of saw blade, makes n=ks/2 or n=ks (k=1,2,3 of matrix ...)Pitch diameter mode is isolated, and increases the modal density of matrix, increases the radiated noise of matrix.

Summary of the invention

The object of the invention is to, the high strength low noise diamond circular saw film base body of the stable cutting of a kind of energy is provided, can reduce processingImpact in process, realizes stable cutting; Reduce the modal density of matrix simultaneously, further reduce the radiated noise of matrix.

The object of the present invention is achieved like this:

A kind of high strength low noise diamond saw blade substrate, comprises saw bit matrix, in the center of described saw bit matrix is provided withHeart hole offers not penetrating type tank uniformly at intervals on the cylindrical of two upper and lower sagittal planes of saw bit matrix.

Described not penetrating type tank is semi penetration type tank, and its degree of depth is the half of saw bit matrix thickness; Half described through-fallThe degree of depth of groove be from saw bit matrix the downward or lower sagittal plane of sagittal plane upward to the position of matrix thickness half.

Be provided with cutter head at every two adjacent sawtooth that form between tank that partly penetrate, be positioned at all cutter head shapes of same sagittal planeBecome a circle; On the upper sagittal plane of whole matrix and lower sagittal plane, be all provided with a circle cutter head.

On the sawtooth of described cutter head welding.

The described tank that partly penetrates, it is shaped as U-shaped, R shape or semicircle.

High strength low noise diamond circular saw film base body provided by the invention, has following beneficial effect:

1. add supplemental support, increase incision stability. Change the uniform tank in traditional diamond circular saw film base body periphery into twoSide uniformly at intervals partly penetrate tank, when next sawtooth incision, the sawtooth of side is stable cutting, is equivalent to side and adds one auxiliaryHelp support, increase the stability of cut process, realize continous-stable cutting.

2. because tank is for partly penetrating tank, cutter head incision thickness reduces by half, and reduces incision and impacts; When cutter head incision, be only originalHalf, impulsive force reduces, increase cutting stability, reduce radiated noise.

3. optimize sawtooth stressed, improve fatigue life. The former tank that penetrates shape, tooth Root Stress is concentrated serious, and Novel adamantineStone circular saw blade substrate, its tank is penetrating type not, whole tank sidewall is stressed, and the power that sawtooth is subject to is disperseed, and reduces tooth root portionStress is concentrated. The phenomenon that tooth Root Stress is too concentrated is eliminated, and has improved the resistance to impact of saw bit matrix.

4. reduce the modal density of diamond circular saw film base body, reduce radiated noise. Avoid because tank cuts off the diamond causingThe discontinuity of circular saw blade substrate periphery, suppresses matrix n=ks/2 or n=ks (k=1,2,3 ...) pitch diameter mode isolates, and reduces matrixModal density, reduces the radiated noise of matrix.

Brief description of the drawings

Fig. 1 is sawing process schematic diagram of the present invention;

Fig. 2 is tooth of the present invention portion structural representation;

Fig. 3 is left view of the present invention;

Fig. 4 is existing saw bit matrix structural representation;

In figure, 1, centre bore, 2, saw bit matrix, 3, cutter head, 4, partly penetrate tank, 5, cutter head, 6, be about to enter and cutCut process cutter head, 7, workpiece to be machined.

Detailed description of the invention

As shown in Figure 1 and Figure 2, the present invention includes saw bit matrix 2, saw bit matrix 2 is provided with centre bore 1, in saw bit matrix 2Heart position is provided with centre bore 1, on the cylindrical of two upper and lower sagittal planes of saw bit matrix 2, offer uniformly at intervals partly penetrate tank4, the degree of depth that partly penetrates tank 4 is the half of saw bit matrix 2 thickness; Spaced apart the referring to here; On upper sagittal plane every two and halfPenetrate between tank, be just provided with one be positioned at lower sagittal plane partly penetrate tank; On lower sagittal plane, every two and half just penetrate between tankBe provided with one be positioned at sagittal plane partly penetrate tank; Be provided with cutter head at every two adjacent sawtooth that form between tank 4 that partly penetrate5, all cutter heads 5 form a circle; On the upper sagittal plane of whole matrix and lower sagittal plane, be all provided with a circle cutter head.

The degree of depth that partly penetrates tank be from saw bit matrix sagittal plane downwards or path to face the position upward to matrix thickness halfPut.

The design (as shown in A in Fig. 4) that existing saw bit matrix is penetrated tank by the present invention changes interval, both sides into and partly penetrates tank,When use, on the sawtooth of the both sides of saw bit matrix 2, weld cutter head 3.

As shown in Figure 1, workpiece to be machined 7 enters cutting region at cut process cutter head 5 to cutting process of the present invention, starts stable cutting,Be about to enter cutting process cutter head 6 and also start incision in next moment, enter in cutting process cutter head 6 cut process being about to, cutCut process cutter head 5 and provide side supplemental support for it, increase the stability of incision. And because cutter head is alternately welded on cylindrical both sides,The thickness of incision cutter head reduces by half, and has further reduced the impact in cut process.

In this process, tank 4 plays chip removal effect in saw kerf.

By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned, not the limit to protection domain of the present inventionSystem, one of ordinary skill in the art should be understood that on the basis of technical scheme of the present invention, those skilled in the art do not need to payGo out various amendments that creative work can make or distortion still in protection scope of the present invention.

Claims (2)

1. a high strength low noise diamond circular saw film base body, is characterized in that: comprise saw bit matrix, in instituteThe center of the saw bit matrix of stating is provided with centre bore, on the cylindrical of two upper and lower sagittal planes of saw bit matrixOffer not penetrating type tank uniformly at intervals; At every two adjacent sawtooth that form between tank that do not penetrateBe provided with cutter head, all cutter heads that are positioned at same sagittal plane form a circle; I.e. radially upper at whole matrixOn face and lower sagittal plane, be all provided with a circle cutter head;

Described not penetrating type tank is semi penetration type tank, and its degree of depth is the half of saw bit matrix thickness; InstituteThe degree of depth that partly penetrates tank of stating is that the downward or lower sagittal plane of sagittal plane is thick upward to matrix from saw bit matrixThe position of degree half;

The described tank that partly penetrates, it is shaped as U-shaped, R shape or semicircle.

2. high strength low noise diamond circular saw film base body as claimed in claim 1, is characterized in that: described inCutter head be welded on sawtooth.