CN209919005U - Superhard cutter with anti-rebound function - Google Patents

Abstract

The utility model relates to a superhard cutter with prevent function of kickback. Including being discoid cutter base member and setting up the centre bore that is used for fixed cutter base member in the middle part of the cutter base member, evenly be provided with the sawtooth that is separated by the setting on the outer periphery of cutter base member, two adjacent saw intertooth spaces all are provided with and are used for holding the clastic chip groove of cutting, the back of sawtooth is provided with the forked tail arch, the forked tail arch is in the coplanar with the back of sawtooth, the back of sawtooth is provided with the chamfer, the length of side of chamfer is between 0.5mm ~ 1.5mm, the preceding terminal surface of sawtooth is the cambered surface setting. The utility model discloses a going on improving the bellied shape of present forked tail, making it be swift current back of the body form design, the chamfer design of cooperation back, the effectual chip removal effect that improves, simultaneously, is the cambered surface setting with the preceding terminal surface of sawtooth, has reduced the interval between the sawtooth, and then has reduced the pressure that single saw bit bore, has improved the life of sawtooth.

Description

Superhard cutter with anti-rebound function

Technical Field

The utility model belongs to the technical field of superhard tool, especially, relate to a superhard cutter with prevent function of kickback.

Background

Saw blades are a general term for thin circular cutters used to cut solid materials. When the existing saw blade is used for cutting materials, the situation that the saw blade rebounds and a plate backs up easily occurs because hard blocks which are difficult to cut can exist in the materials, so that danger is easily caused to constructors. Therefore, on the basis of the saw teeth of the existing saw blade, a dovetail-shaped tooth back is uniformly punched on the saw teeth of the saw blade, for example, a circular saw blade disclosed by the national intellectual property office (patent number: CN201220690644.4}, including the saw bit cutter body, the center of saw bit cutter body is provided with the centre bore, saw bit cutter body edge evenly is provided with the sawtooth, is provided with the alloy tool bit on the sawtooth, and the even punching press has the swallow-tail shape back of tooth on the back of the sawtooth, and the knife face of alloy tool bit and the longitude line of alloy tool bit to centre bore department become 18 degrees angles. Even punching press has the dovetail back of tooth on this circular saw blade's the sawtooth, prevents that the circular saw blade from rebounding when the cutting, guarantees constructor's safety, improves the security, and sets up the alloy tool bit on the sawtooth, and the knife face of alloy tool bit and alloy tool bit become 18 degrees angles to the warp of centre bore department, increase the cutting ability to the hard piece that is difficult to the cutting of circular saw blade, further guarantee that the circular saw blade can not rebound when the cutting. Such saw blades with dovetail tooth backs are also known as dovetail tooth saw blades.

The dovetail tooth saw blade effectively solves the problem of rebounding of the existing saw blade when cutting materials, but the saw blade with the existing dovetail tooth back also has the following technical problem when cutting materials, the saw teeth are subjected to large impact force in the cutting process, the situation that a single saw tooth is broken in the using process is caused, in addition, in the cutting process, the problem that the saw is clamped or the saw is hit is easily caused, and the service life of the saw blade is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that foretell saw bit existed, provide a reasonable in design, simple structure and can effectively avoid pressing from both sides the saw or hit the superhard cutter that has of saw problem and prevent the bounce-back function.

In order to achieve the above object, the utility model discloses a technical scheme do, the utility model provides a superhard cutter with prevent bounce-back function, including being discoid cutter base member and setting up the centre bore that is used for fixed cutter base member at cutter base member middle part, evenly be provided with the sawtooth that is separated by the setting on the outer periphery of cutter base member, two adjacent sawtooth intertooth spaces all are provided with and are used for holding the clastic chip groove of cutting, the back of sawtooth is provided with the forked tail arch, the forked tail arch is in the coplanar with the back of sawtooth, the back of sawtooth is provided with the chamfer, the length of side of chamfer is between 0.5mm ~ 1.5mm, the preceding terminal surface of sawtooth is the cambered surface setting.

As preferred, it leads to the groove to be provided with antidetonation amortization on the cutter base member, the groove is led to antidetonation amortization includes that two are the foundation trench that the acute angle shape set up and be close to the auxiliary tank that the foundation trench middle part set up, the auxiliary tank is the acute angle shape with the foundation trench and sets up, the auxiliary tank sets up between two foundation trenches, the auxiliary tank is the S type setting, the side of foundation trench is the arc setting, the acute angle that the groove was led to antidetonation amortization is directional to be contrary with cutter direction of rotation and.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model provides a superhard cutter with prevent bounce-back function improves through the bellied shape of forked tail with having now, makes it be swift current back of the body form design, and the chamfer design of cooperation back, the effectual chip removal effect that improves simultaneously, is the cambered surface setting with the preceding terminal surface of sawtooth, has reduced the interval between the sawtooth, and then has reduced the pressure that single saw bit bore, has improved the life of sawtooth, simultaneously, the utility model discloses simple structure, processing convenience, be fit for using widely on a large scale.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a superhard cutter with an anti-bounce function provided in embodiment 1;

in the above figures, 1, a tool base; 11. a central bore; 12. a chip pocket; 2. saw teeth; 21. chamfering; 3. dovetail protrusions; 4. an anti-seismic silencing through groove; 41. a base groove; 42. an auxiliary groove.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1, this embodiment aims to solve the technical problems of the existing dovetail teeth, such as the unsmooth chip removal and the easy saw clamping, and therefore, the superhard cutter with the anti-rebound function provided by this embodiment comprises a cutter base body 1 in a disc shape and a central hole 11 arranged in the middle of the cutter base body 1 for fixing the cutter base body 1, saw teeth 2 arranged at intervals are uniformly arranged on the outer circumferential surface of the cutter base body 1, chip pockets 12 for receiving cutting chips are arranged between two adjacent saw teeth 2, a dovetail protrusion 3 is arranged on the back of each saw tooth 2, unlike the conventional dovetail protrusion 3 in which a groove is arranged on the top surface of each saw tooth 2 (for example, the shape of the dovetail protrusion provided by the circular saw blade with the hump-shaped protrusion CN 201320113326.6) or a groove is arranged on the back surface of each saw tooth 2 (for example, the shape of the dovetail protrusion provided by the circular saw blade with the CN 201220690644.4), in this embodiment, the dovetail protrusion 3 is in the same plane with the back of the saw tooth 2, specifically, the top of the back of the saw tooth 2 is not designed with a groove, and the protrusion is directly arranged, and on the back of the saw tooth 2, the dovetail protrusion 3 and the back of the saw tooth 2 are in the same plane, and there is no protruding place, so as to form a slippery back, which is set for the purpose of utilizing the function of the dovetail protrusion 3, mainly for facilitating chip removal, meanwhile, in order to match the structural design of the dovetail protrusion 3, the back of the saw tooth 2 is provided with a chamfer 21, the side length of the chamfer 21 is between 0.5mm and 1.5mm, in this embodiment, the chamfer 21 is 0.5mm, so that chips can conveniently enter the chip containing groove 12, and then can be conveniently thrown out, and then the occurrence of sawing clamping is avoided, and at the same time, in order to reduce the pressure born by each saw tooth 2, in the present embodiment, the front end surface of the sawtooth 2 is arranged in a cambered surface. The front end face of the sawtooth 2 is arc-shaped, so that the cutting amount of the cutter base body 1 is reduced under the condition that the rotating speed is consistent, the impact force of the single sawtooth 2 is reduced, the impact strength of the single sawtooth 2 is increased, the sawtooth is not broken even in long-time cutting, and the production cost is saved.

Considering that the cutter can generate a large amount of noise during the cutting process, and the noise can cause the cutter to vibrate, for this reason, the cutter base body 1 is provided with the shock-resistant noise-reduction through groove 4, in this embodiment, the shape of the whole shock-resistant noise-reduction through groove 4 is similar to an acute angle, specifically, the shock-resistant noise-reduction through groove comprises two base grooves 41 arranged in an acute angle shape, the angle of the included angle between the two base grooves 41 is 25-40 degrees, and the acute angle direction of the shock-resistant noise-reduction through groove 4 is arranged opposite to the rotation direction of the cutter, so as to use a wider groove surface (the distance between the two edges) to firstly contact the cutting surface, so that the generated noise can be gradually reduced, in order to further improve the noise reduction effect, the shock-resistant noise-reduction through groove 4 is regarded as an auxiliary groove 42 arranged in the middle of the two base grooves 41, meanwhile, the auxiliary groove 42 and the base groove 41 are also arranged in an acute angle shape, the auxiliary groove 42 is provided between the two base grooves 41, and is provided for the purpose of further reducing noise. Also, in order to further reduce noise, the auxiliary groove 42 is formed in an S-shape, which is advantageous for attenuating noise generated by friction, and for this reason, the side of the base groove 41 is formed in an arc shape.

In order to improve the cutting effect, in the present embodiment, the saw teeth 2 are trapezoidal teeth.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (2)

1. The utility model provides a superhard cutting tool with prevent bounce-back function, includes and is discoid cutter base member and sets up the centre bore that is used for fixed cutter base member at cutter base member middle part, evenly be provided with the sawtooth that sets up at a distance from on the outer periphery of cutter base member, two adjacent sawtooth intertooth intervals all are provided with the chip groove that is used for holding cutting piece, the back of sawtooth is provided with the forked tail arch, its characterized in that, the forked tail arch is in the coplanar with the back of sawtooth, the back of sawtooth is provided with the chamfer, the length of side of chamfer is between 0.5mm ~ 1.5mm, the preceding terminal surface of sawtooth is the cambered surface setting, be provided with antidetonation amortization logical groove on the cutter base member, antidetonation amortization logical groove includes two basic grooves that are the acute angle shape setting and is close to the auxiliary groove that the basic groove middle part set up, the auxiliary groove is the acute angle, the auxiliary groove is S-shaped, the side edge of the base groove is arc-shaped, and the acute angle direction of the anti-seismic silencing through groove is arranged in the opposite direction to the rotation direction of the cutter.

2. A superhard cutter with an anti-bounce function according to claim 1, wherein the serrations are trapezoidal flat teeth.

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