CN202539693U

CN202539693U - Novel diamond tool bit

Info

Publication number: CN202539693U
Application number: CN2012201384791U
Authority: CN
Inventors: 李世进; 汤磊平
Original assignee: QUANZHOU ZHONGZHI DIAMOND TOOLS CO Ltd
Current assignee: QUANZHOU ZHONGZHI DIAMOND TOOLS CO Ltd
Priority date: 2012-04-01
Filing date: 2012-04-01
Publication date: 2012-11-21
Anticipated expiration: 2022-04-01

Abstract

The utility model discloses a novel diamond tool bit which comprises a tool bit inner edge and a tool bit outer edge. The tool bit inner edge is fixedly connected with the radial outer side of a diamond saw blade base. The tool bit outer edge is used for cutting. A V-shaped slanting groove with an arc-shaped smooth transition bottom is reserved on the tool bit outer edge. The bottom of the V-shaped slanting groove inclines towards a cutting direction of the tool bit. By arranging V-shaped slanting groove on the tool bit outer edge, service life of the tool bit is prolonged, chip removing is achieved, heating of the tool bit and resistance borne by the tool bit during rotation are lowered, and cutting efficiency and sharpness of the tool bit are improved. Since the bottom of the V-shaped slanting groove inclines towards the cutting direction of the tool bit, namely, the inclination direction of the bottom of the V-shaped slanting groove accords with the rotation direction of the tool bit, wind resistance and noise caused by rotation of the tool bit are lowered.

Description

A kind of diamond new tool bit

Technical field

The utility model belongs to the diamond saw blade technical field, specifically refers to a kind of diamond new tool bit that is fixedly arranged on the diamond saw blade substrate radial outside.

Background technology

Diamond segment is the operative body of diamond saw blade, and its structure roughly is rectangular structure, and along being fixed on the radial outside of saw bit matrix, its cutter head outer is to be one section camber line at center with the saw bit matrix center of circle in its cutter head; The performance indications of diamond segment are mainly considered from aspects such as sharpness, cutting-rate and durabilities in the application; And a key factor that influences this various aspects of performance is the chip removal dynamics of cutter head; In order to improve the chip removal dynamics, people have proposed multiple improved procedure, for example on the working face of cutter head, offer the chip area of U type shape; It has a certain upgrade on the chip removal dynamics; But this structural design does not combine the influence that extraneous power is brought in the cutter head rotation use, problems such as the for example extraneous windage of being brought, noise, and corresponding said various aspects performance just has been difficult to substantial lifting.

In view of this, the inventor furthers investigate to the problem that existing diamond segment exists, and this case produces thus.

The utility model content

The purpose of the utility model is to provide a kind of diamond new tool bit, and it makes the performances such as chip removal dynamics, cutting-rate, sharpness and durability of cutter head that comprehensive lifting arranged through structure optimization design.

In order to reach above-mentioned purpose, the solution of the utility model is:

A kind of diamond new tool bit, comprise with the affixed cutter head of diamond saw blade substrate radial outside in along having reached the cutter head outer of shear action; Above-mentioned cutter head outer is provided with the V-type skewed slot that the bottom seamlessly transits for arc, and the bottom land of this V-type skewed slot tilts toward the cutting direction of cutter head.

The bottom of above-mentioned V-type skewed slot is that circular arc seamlessly transits, and the pairing opening angle value of its V-structure is 35-45 °.

Respectively be provided with chip area on the two relative side of above-mentioned diamond segment thickness direction, the chip area on this two relative side is the setting of staggering, and this each chip area all in the above-mentioned cutter head along to above-mentioned cutter head outer direction extend and run through setting.

Above-mentioned chip area is equipped with two on above-mentioned two relative side, and is located at the both sides of above-mentioned V-type skewed slot respectively.

The cross section of above-mentioned chip area is the trapezoidal shape structure of bottom land necking down, and this trapezoidal shape structure comprises bottom land and two cell walls, is circular arc between this two cell wall and bottom land and seamlessly transits.

After adopting such scheme, a kind of diamond new tool bit of this case, it is provided with the V-type skewed slot in the cutter head outer, thereby makes that the blade (cutter head outer) of same cutter head is stressed evenly, and then wearing and tearing are even in working angles, the service life that can improve cutter head thus; And the V-type skewed slot of being offered also can play the chip removal effect, thereby reduces the cutter head heating and reduce the resistance that receives in the rotation, and then has improved the service life and the cutting efficiency of cutter head, the lifting of the sharpness of also having withdrawn deposit simultaneously; Have, the bottom land of said V-type skewed slot suitably tilts toward cutting direction again, and promptly incline direction is consistent with the direction of rotation of cutter head, has reduced windage and noise pollution that cutter head is brought in rotation thus; To sum up, this case cutter head reasonable structural design makes the overall performance of cutter head that lifting by a relatively large margin arranged.

Description of drawings

Fig. 1 is this novel structural representation;

Fig. 2 is the enlarged drawing of local A among this novel Fig. 1;

Fig. 3 is that the A-A of Fig. 1 is to cutaway view.

Label declaration

1 cutter head outer 2, edge in the cutter head

V-type skewed slot 21 bottoms 211

212 second sides 212, first side

Blade 22 blades 23

Blade 24 blades 25

Cutter head rear side 3 cutter head front sides 4

5 second sides 6, first side

Chip area

51,61

The specific embodiment

Be depicted as a kind of diamond segment that the utility model relates to like Fig. 1-2, it includes edge 1, cutter head outer 2, cutter head rear side 3, cutter head front side 4, first side 5 and second side 6 in the cutter head; The radial outside Joint of edge 1 and diamond saw blade substrate in the cutter head, edge 2 is the cutter head working face in the cutter head, and it plays shear action, and the cutting direction in the cutter head sawing is from cutter head rear side 3 to cutter head front side 4 (like the direction of arrow Fig. 1).

This novel main improvement is that cutter head outer 2 is provided with V-type skewed slot 21, and the bottom of this V-type skewed slot 21 is curved to seamlessly transit, and the groove depth of this V-type skewed slot 21 is obliquely installed toward cutting direction; According to diamond tool area of bed type, V-type skewed slot 21 can be provided with a plurality of, and in the preferred embodiment, 21 of V-type skewed slots are provided with one, are positioned at the middle part of cutter head outer 2.

Because the setting of V-type skewed slot 21, the blade 22 on the cutter head outer, blade 23, blade 24 and blade 25 stressed difference are little, and it is more even to wear and tear in the working angles, the service life of having improved cutter head thus; And the V-type skewed slot of being offered 21 also can play the chip removal effect, thereby reduces the cutter head heating and reduce the resistance that receives in the rotation, and then has improved the service life and the cutting efficiency of cutter head, the lifting of the sharp performance of also having withdrawn deposit simultaneously; Have, the bottom land of said V-type skewed slot 21 suitably tilts toward cutting direction again, and promptly incline direction is consistent with the direction of rotation of cutter head, has reduced windage and noise pollution that cutter head is brought in rotation thus; In sum, this case cutter head reasonable structural design makes the overall performance of cutter head that lifting by a relatively large margin arranged.

What need further specify here is; Said V-type skewed slot 21 comprises bottom 211, first side 212 and second side 213, these bottom 211 curved seamlessly transitting, and preferable employing circular arc seamlessly transits; Said first side 212 is the one side near front side edge 4; Itself and this front side edge 4 parallels, and what the opening angle value of said first side 212, second side 212 was preferable can be made as 35-45 °, and optimum value is 40 °.

Further; In the sawing; If diamond segment chip removal dynamics is not enough or untimely; Can greatly reduce cutter head sawing sharpness and cutting-rate attached to the cutting swarf on the cutter head working face, this case is also made further structural design to diamond segment thus, on the two relative side (first side 5 and second side 6) of cutter head thickness direction, respectively is provided with

chip area

51,61;

Chip area

51,61 interlaces and is arranged; And this

chip area

51,61 all along in the cutter head along 1 to the cutter head outer 2 directions extend and run through setting, the incline direction of preferable all right similar V-type skewed slot 21 is slightly and is obliquely installed, and saidly runs through the both ends that setting refers to

chip area

51,61 and is the opening shape.

The groove shape of said

chip area

51,61 can be arbitrary form; Provide a preferred embodiment like Fig. 2;

Chip area

51,61 is the trapezoidal shape structure of bottom land necking down, and this trapezoidal shape structure comprises bottom land and two cell walls, is circular arc between this two cell wall and bottom land and seamlessly transits; Have, provide among Fig. 1 in the preferred embodiment, separately chip area is equipped with two on first side 5 and second side 6, and is located at the both sides of V-type skewed slot 21 respectively; The cutting swarf that is produced in the sawing thus can in time be drained again through said

chip area

51,61 effectively, and it has also promoted sharpness, cutting-rate and the performance such as durable of cutter head in the chip removal dynamics that promotes cutter head greatly simultaneously.

Claims

1. diamond new tool bit, comprise with the affixed cutter head of diamond saw blade substrate radial outside in along the cutter head outer that has reached shear action; It is characterized in that: above-mentioned cutter head outer is provided with the V-type skewed slot that the bottom seamlessly transits for arc, and the bottom land of this V-type skewed slot tilts toward the cutting direction of cutter head.

2. a kind of diamond new tool bit as claimed in claim 1 is characterized in that: the bottom of above-mentioned V-type skewed slot is that circular arc seamlessly transits, and the pairing opening angle value of its V-structure is 35-45 °.

3. a kind of diamond new tool bit as claimed in claim 1; It is characterized in that: respectively be provided with chip area on the two relative side of above-mentioned diamond segment thickness direction; Chip area on this two relative side is the setting of staggering, and this each chip area all in the above-mentioned cutter head along to above-mentioned cutter head outer direction extend and run through setting.

4. a kind of diamond new tool bit as claimed in claim 3 is characterized in that: above-mentioned chip area is equipped with two on above-mentioned two relative side, and is located at the both sides of above-mentioned V-type skewed slot respectively.

5. a kind of diamond new tool bit as claimed in claim 3 is characterized in that: the cross section of above-mentioned chip area is the trapezoidal shape structure of bottom land necking down, and this trapezoidal shape structure comprises bottom land and two cell walls, is circular arc between this two cell wall and bottom land and seamlessly transits.