CN219188653U

CN219188653U - Wear-resistant hard alloy cutter head

Info

Publication number: CN219188653U
Application number: CN202223507636.4U
Authority: CN
Inventors: 冷涛; 孙廷枢; 刘敏锋; 王伟梁
Original assignee: Jiangsu Gate Tungsten Technology Co ltd
Current assignee: Jiangsu Gate Tungsten Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-16
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a wear-resistant hard alloy cutter head, which comprises a hard alloy layer, wherein a guide groove is arranged on the outer side of the hard alloy layer, discharge grooves are arranged on the two sides of the guide groove, the tail end of the hard alloy layer is fixedly connected with a heat dissipation mechanism, and the bottom of the heat dissipation mechanism is provided with a connecting column; the tool bit that carbide layer constitutes cuts the material, when cutting the material, the piece that produces contacts with carbide layer's cutting edge department to in the cambered surface of blade removes the guide way along the blade under the promotion of cutting edge, the material piece that enters into the guide way removes the escape groove along the inner wall of guide groove, and discharges through the escape groove, and in leading heat into the heat dissipation piece through the heat conduction inner core, and dispel the heat through heat dissipation piece and air or cooling water contact, through reducing the collision that material piece removed with the tool bit cutting edge and make carbide layer's temperature reduce fast, reach the technological effect that improves the tool bit wearability.

Description

Wear-resistant hard alloy cutter head

Technical Field

The utility model relates to the field of hard alloy cutter heads, in particular to a wear-resistant hard alloy cutter head.

Background

The tool bit is the head of the tool, which can be divided into a diamond tool bit, an alloy tool bit and a carbon steel tool bit, has high-temperature resistance, wear resistance and good sharpness, is a main component of lathe processing equipment, is formed by mixing and processing tungsten, cobalt and magnesium, and is a necessary for hardware processing according to different requirements.

In cutting machining, tool wear commonly occurs in three forms: the first is abrasion due to mechanical action, such as tipping or abrasion of abrasive grains; the second type of wear due to the action of cutting heat, such as bonding, diffusion, etc.; thirdly, fracture, thermal fatigue, thermal cracking, etc. caused by softening and melting of the cutting edge due to chemical factors; the traditional tool bit is single in structure, chips generated during cutting cannot be cleaned automatically, and due to the integral structure of the single material, the self-radiating capability is poor, so that the tool bit is prevented from being worn too fast mainly through an external mode, such as a method of using cutting fluid, when the tool bit is used for machining materials, in order to improve the problem, the influence of chips and temperature generated during machining on the wear resistance of the tool bit is reduced, and therefore the wear-resistant hard alloy tool bit is provided.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the wear-resistant hard alloy cutter head, which has the technical effect of improving the wear resistance of the cutter head.

In order to solve the technical problems, the utility model provides the following technical scheme: the wear-resistant hard alloy cutter head comprises a hard alloy layer, wherein a guide groove is formed in the outer side of the hard alloy layer, discharge grooves are formed in the two sides of the guide groove, a heat dissipation mechanism is fixedly connected to the tail end of the hard alloy layer, and a connecting column is mounted at the bottom of the heat dissipation mechanism; the heat dissipation mechanism comprises a heat conduction inner core, a heat dissipation block connected to the tail end of the heat conduction inner core, and a heat dissipation groove arranged on the outer side of the heat dissipation block.

As a preferable technical scheme of the utility model, the hard alloy layer is arranged as a main body of the cutter head, and the cutter head part of the hard alloy layer is arranged as an arc-shaped structure.

As a preferable technical scheme of the utility model, the top of the guide groove is slotted to be close to the edge of the cutting edge at the top of the hard alloy layer, the connecting surface of the top of the guide groove and the cutting edge is arc-shaped, and the depth of the bottom of the guide groove is larger than that of the top of the guide groove, so that the section of the guide groove is an inclined arc surface.

As a preferable technical scheme of the utility model, the two sides of the guide groove are symmetrically provided with the discharge groove, the side wall of the discharge groove is provided with an inclined plane, and the connecting surface of the top surface of the discharge groove and the guide groove is provided with an arc-shaped surface.

As a preferable technical scheme of the utility model, the heat conducting inner core is embedded and fixed in the hard alloy layer and is tightly attached to the hard alloy layer, and the top surface of the heat radiating block is tightly attached to the bottom surface of the hard alloy layer.

As a preferable technical scheme of the utility model, the plurality of radiating grooves are arranged and distributed around the outer wall of the radiating block.

As a preferable technical scheme of the utility model, the connecting column is in a hexagonal prism structure, and one end of the connecting column is embedded and fixed in the clamping groove at the bottom of the radiating block.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the material is cut through the cutter head formed by the hard alloy layer, when the material is cut, generated fragments are contacted with the cutter edge of the hard alloy layer and move into the guide groove along the cambered surface of the cutter body under the pushing of the cutter edge, so that the contact and collision between the fragments and the cutter edge are reduced, the fragments of the material entering the guide groove move into the discharge groove along the inner wall of the guide groove and are discharged through the discharge groove, the temperature of the hard alloy layer is increased during processing, heat is introduced into the heat dissipation block through the heat conduction inner core, the heat is dissipated through the contact of the heat dissipation block and air or cooling water, the effect of reducing the temperature of the hard alloy layer is achieved, and the technical effects of improving the wear resistance of the cutter head are achieved by reducing the collision between the fragments of the material and the cutter edge of the cutter head and rapidly reducing the temperature of the hard alloy layer;

2. the heat-conducting inner core is embedded and fixed in the hard alloy layer and is tightly attached to the hard alloy layer, the top surface of the heat-radiating block is tightly attached to the bottom surface of the hard alloy layer, the outer side of the heat-radiating block is provided with a plurality of heat-radiating grooves, the heat-radiating grooves are circumferentially distributed on the outer wall of the heat-radiating block, the surface area of the heat-radiating block is increased through the heat-radiating grooves, the contact area between the heat-radiating block and air or cooling water is increased, and the technical effect of accelerating heat-radiating efficiency is achieved.

Drawings

FIG. 1 is a schematic diagram of the complete structure of the present utility model;

FIG. 2 is a cross-sectional block diagram of the present utility model;

FIG. 3 is a side elevational structural view of the present utility model;

fig. 4 is a front view of the present utility model.

Wherein: 1. a cemented carbide layer; 2. a guide groove; 3. a discharge groove; 4. a heat dissipation mechanism; 5. a connecting column; 41. a thermally conductive inner core; 42. a heat dissipation block; 43. a heat sink.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.

Examples:

as shown in fig. 1-4, a wear-resistant hard alloy cutter head comprises a hard alloy layer 1, wherein a guide groove 2 is arranged on the outer side of the hard alloy layer 1, discharge grooves 3 are arranged on two sides of the guide groove 2, the tail end of the hard alloy layer 1 is fixedly connected with a heat dissipation mechanism 4, and a connecting column 5 is arranged at the bottom of the heat dissipation mechanism 4; the heat dissipation mechanism 4 comprises a heat conduction inner core 41, a heat dissipation block 42 connected to the tail end of the heat conduction inner core 41, and a heat dissipation groove 43 arranged outside the heat dissipation block 42; during machining, the material is cut by the tool bit formed by the cemented carbide layer 1.

In other embodiments, the cemented carbide layer 1 is provided as the body of the tool tip and the tool tip portion of the cemented carbide layer 1 is provided in an arcuate configuration, the cemented carbide layer 1 constituting the cutting edge and the body of the tool tip, the material being cut by the cutting edge portion of the cemented carbide layer 1.

In other embodiments, the top of the guide groove 2 is slotted to be close to the edge of the cutting edge at the top of the cemented carbide layer 1, the connection surface between the top of the guide groove 2 and the cutting edge is arc-shaped, and the depth of the bottom of the guide groove 2 is larger than the depth of the top of the guide groove 2, so that the section of the guide groove 2 is an inclined arc surface, and when cutting materials, generated chips are contacted with the cutting edge of the cemented carbide layer 1 and move into the guide groove 2 along the arc surface of the blade body under the pushing of the cutting edge, so that the contact and collision between the chips and the cutting edge are reduced.

In other embodiments, the discharge groove 3 is symmetrical on both sides of the guide groove 2, the side wall of the discharge groove 3 is provided as an inclined surface, and the connection surface of the top surface of the discharge groove 3 and the guide groove 2 is provided as an arc surface, and the material chips entering into the guide groove 2 move into the discharge groove 3 along the inner wall of the guide groove 2 and are discharged through the discharge groove 3.

In other embodiments, the heat conducting inner core 41 is embedded and fixed inside the cemented carbide layer 1 and is tightly attached to the cemented carbide layer 1, and the top surface of the heat dissipating block 42 is tightly attached to the bottom surface of the cemented carbide layer 1, so that the temperature of the cemented carbide layer 1 is increased during processing, heat is introduced into the heat dissipating block 42 through the heat conducting inner core 41, and the heat is dissipated through the contact of the heat dissipating block 42 with air or cooling water, thereby achieving the effect of reducing the temperature of the cemented carbide layer 1.

In other embodiments, the heat dissipation grooves 43 are provided in plural and circumferentially distributed on the outer wall of the heat dissipation block 42, and the heat dissipation efficiency is increased by increasing the surface area of the heat dissipation block 42 through the heat dissipation grooves 43, and increasing the contact area between the heat dissipation block 42 and air or cooling water.

In other embodiments, the connecting post 5 is configured as a hexagonal prism structure, and one end of the connecting post 5 is embedded into a clamping groove fixed at the bottom of the heat dissipating block 42, and the whole tool bit structure is fixed in an auxiliary manner through the connecting post 5.

The working principle of the utility model is as follows: when the cutter head is used, a cutter head formed by the hard alloy layer 1 cuts a material, generated chips are contacted with the cutting edge of the hard alloy layer 1 when the material is cut, and move into the guide groove 2 along the cambered surface of the cutter body under the pushing of the cutting edge, so that the contact and collision between the chips and the cutting edge are reduced, the chips of the material entering into the guide groove 2 move into the discharge groove 3 along the inner wall of the guide groove 2 and are discharged through the discharge groove 3, the temperature of the hard alloy layer 1 is increased during processing, heat is introduced into the heat dissipation block 42 through the heat conducting inner core 41, and the heat is dissipated through the contact of the heat dissipation block 42 and air or cooling water, so that the effect of reducing the temperature of the hard alloy layer 1 is achieved, and the effect of improving the wear resistance of the cutter head is achieved by reducing the collision between the chips of the material and the cutting edge of the cutter head and enabling the temperature of the hard alloy layer 1 to be quickly reduced; the surface area of the radiating block 42 is increased through the radiating grooves 43, the contact area between the radiating block 42 and air or cooling water is increased, the radiating efficiency is accelerated, and the whole cutter head structure is fixed in an auxiliary mode through the connecting column 5.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Wear-resistant carbide tool bit, including carbide layer (1), its characterized in that: the outer side of the hard alloy layer (1) is provided with a guide groove (2), both sides of the guide groove (2) are provided with discharge grooves (3), the tail end of the hard alloy layer (1) is fixedly connected with a heat dissipation mechanism (4), and the bottom of the heat dissipation mechanism (4) is provided with a connecting column (5); the heat dissipation mechanism (4) comprises a heat conduction inner core (41), a heat dissipation block (42) connected to the tail end of the heat conduction inner core (41), and a heat dissipation groove (43) arranged on the outer side of the heat dissipation block (42).

2. A wear resistant cemented carbide insert according to claim 1, wherein: the hard alloy layer (1) is arranged as a main body of the cutter head, and the cutter head part of the hard alloy layer (1) is arranged into an arc-shaped structure.

3. A wear resistant cemented carbide insert according to claim 1, wherein: the top of guide slot (2) flutes and is close to the cutting edge at carbide layer (1) top to the junction surface of the top of guide slot (2) and cutting edge sets up to the arc, and the degree of depth of guide slot (2) bottom is greater than the degree of depth at guide slot (2) top, makes the cross-section of guide slot (2) be the cambered surface of slope.

4. A wear resistant cemented carbide insert according to claim 1, wherein: the two sides of the guide groove (2) of the discharge groove (3) are symmetrical structures, the side wall of the discharge groove (3) is an inclined plane, and the connection surface of the top surface of the discharge groove (3) and the guide groove (2) is an arc surface.

5. A wear resistant cemented carbide insert according to claim 1, wherein: the heat conducting inner core (41) is embedded and fixed in the hard alloy layer (1) and is tightly attached to the hard alloy layer (1), and the top surface of the heat radiating block (42) is tightly attached to the bottom surface of the hard alloy layer (1).

6. A wear resistant cemented carbide insert according to claim 1, wherein: the heat dissipation grooves (43) are arranged in a plurality and are circumferentially distributed on the outer wall of the heat dissipation block (42).

7. A wear resistant cemented carbide insert according to claim 1, wherein: the connecting column (5) is of a hexagonal prism structure, and one end of the connecting column (5) is embedded and fixed in a clamping groove at the bottom of the radiating block (42).