CN216461741U - Ultrathin hard alloy tool bit structure with central partition - Google Patents

Abstract

The utility model discloses an ultrathin hard alloy cutter head structure with a central partition, which comprises an even number of hard alloy cutter head layers, wherein a graphite mold central partition layer is arranged between every two adjacent hard alloy cutter head layers at the middle, and graphite mold pressure heads are arranged on the outer sides of the two hard alloy cutter head layers at the outermost sides. Compared with the prior art, the utility model has the advantages that: simple structure, it is convenient to implement, and the high warm-area of central point that avoids graphite jig with central partition layer to the higher graphite material of density has been used on central partition layer, has effectively avoided the erosion of central layer tool bit of central high temperature, has got rid of central layer sintering hard alloy tool bit central point of overfire and has been the burnt blue, has improved the sintering stability of hard alloy tool bit by a wide margin, and the alloying degree is more even, higher, has guaranteed the best most reasonable hardness of hard alloy tool bit. Has good market popularization value.

Description

Ultrathin hard alloy tool bit structure with central partition

Technical Field

The utility model relates to the technical field of metal cutting tool manufacturing, in particular to an ultrathin hard alloy cutter head structure with a central partition.

Background

The ultrathin (below 4.0 thickness) hard alloy cutter head has the biggest advantage that the yield is improved on the basis of the traditional two-layer die and 4-layer die, and the six-layer die has fatal defects while the yield is improved. Due to the design reason of the layer number and overhigh temperature of the central point of the infrared temperature measuring holes of the six-layer die, the cutter heads at the hot pressing positions of a formula with a high melting point have blue prints which are burnt by sintering, most of the alloy cutter heads which are concentrated at the central position and have blue prints are reflected by the burnt sintering, the quality of the hard alloy cutter heads is unstable, the alloy hardness of the cutter heads is uneven, the central hardness of the cutter heads is overhigh, and the cutting quality of the alloy cutter heads is seriously influenced. Similar problems exist with 2-layer molds and 4-layer molds, with 6-layer molds being particularly significant.

Therefore, the structure of the ultrathin hard alloy cutter head with the center partition needs to be researched.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems mentioned in the background technology and provides an ultrathin hard alloy cutter head structure with a central partition.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides an ultra-thin carbide tool bit structure of area center wall, includes the carbide tool bit layer on even layer, is equipped with graphite jig center wall layer between two adjacent carbide tool bit layers in the middle most, and the outside on two carbide tool bit layers in the outside all is equipped with the graphite jig pressure head.

As a preferred scheme, the number of the hard alloy cutter head layers is two, the central partition layer of the graphite mold is positioned between the two hard alloy cutter head layers, and the pressure heads of the graphite mold are positioned on two sides of the two hard alloy cutter head layers.

As a preferred scheme, the number of the hard alloy cutter head layers is four, a graphite mold layer is arranged between the hard alloy cutter head layers on the same side of the graphite mold center partition layer, and the hard alloy cutter head layer, the graphite mold layer, the hard alloy cutter head layer and the graphite mold pressure head are sequentially arranged on two sides of the graphite mold center partition layer.

As a preferred scheme, the number of the hard alloy cutter head layers is six, a graphite mold layer is arranged between the hard alloy cutter head layers on the same side of the graphite mold center partition layer, and the hard alloy cutter head layer, the graphite mold layer, the hard alloy cutter head layer and the graphite mold pressure head are sequentially arranged on two sides of the graphite mold center partition layer.

Compared with the prior art, the utility model has the advantages that: simple structure, it is convenient to implement, and the high warm-area of central point that avoids graphite jig with central partition layer to the higher graphite material of density has been used on central partition layer, has effectively avoided the erosion of central layer tool bit of central high temperature, has got rid of central layer sintering hard alloy tool bit central point of overfire and has been the burnt blue, has improved the sintering stability of hard alloy tool bit by a wide margin, and the alloying degree is more even, higher, has guaranteed the best most reasonable hardness of hard alloy tool bit. Has good market popularization value.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 3 of the present invention.

Fig. 4 is a state diagram of the use of the present invention.

As shown in the figure: 1. the graphite mold comprises a hard alloy cutter head layer, 2 a graphite mold center partition layer, 3 a graphite mold pressure head, 4 a graphite mold layer and 5 an infrared temperature measuring probe.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the resulting manner or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or point connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in the figure, the ultrathin hard alloy cutter head structure with the central partition comprises an even number of hard alloy cutter head layers 1, a graphite mold central partition layer 2 is arranged between every two adjacent hard alloy cutter head layers 1 in the middle, and graphite mold pressure heads 3 are arranged on the outer sides of the two hard alloy cutter head layers 1 on the outermost sides.

The quantity of carbide tool bit layer 1 is two-layer, graphite mould center partition layer 2 is located between two carbide tool bit layers 1, graphite mould pressure head 3 is located two carbide tool bit layer 1 both sides.

Example 2

As shown in the figure, the ultrathin hard alloy cutter head structure with the central partition comprises an even number of hard alloy cutter head layers 1, a graphite mold central partition layer 2 is arranged between every two adjacent hard alloy cutter head layers 1 in the middle, and graphite mold pressure heads 3 are arranged on the outer sides of the two hard alloy cutter head layers 1 on the outermost sides.

The quantity of carbide tool bit layer 1 is four layers, graphite mould center is cut off and is equipped with graphite mould layer 4 between the carbide tool bit layer 1 of layer 2 homonymy at the graphite mould center, graphite mould center cuts off 2 both sides in layer and is carbide tool bit layer 1, graphite mould layer 4, carbide tool bit layer 1, graphite mould pressure head 3 in proper order.

Example 3

As shown in the figure, the ultrathin hard alloy cutter head structure with the central partition comprises an even number of hard alloy cutter head layers 1, a graphite mold central partition layer 2 is arranged between every two adjacent hard alloy cutter head layers 1 in the middle, and graphite mold pressure heads 3 are arranged on the outer sides of the two hard alloy cutter head layers 1 on the outermost sides.

The quantity of carbide tool bit layer 1 is six layers, graphite mould center is cut off and is equipped with graphite mould layer 4 between the carbide tool bit layer 1 of layer 2 homonymy at the graphite mould center, graphite mould center cuts off 2 both sides in layer and is carbide tool bit layer 1, graphite mould layer 4, carbide tool bit layer 1, graphite mould pressure head 3 in proper order.

When the utility model is implemented specifically, the center partition layer partitions the 6 layers of tool bits into an upper three-layer structure and a lower three-layer structure, the center partition layer avoids a high-temperature central region of the graphite mold, and the center partition layer is made of graphite material with higher density, so that the tool bit of the center layer is effectively prevented from being eroded by the center high temperature of the infrared temperature measuring probe 5, the burnt blue central point of the sintered overfire hard alloy tool bit of the center layer is removed, the sintering stability of the hard alloy tool bit is greatly improved, the alloying degree is more uniform and higher, and the optimal and most reasonable hardness of the hard alloy tool bit is ensured.

Continuously adjusting and modifying the height rationality of the central partition layer according to continuous sintering practice, and finally obtaining that the pressed alloy product completely avoids the high-temperature corrosion of the central point under the condition that the optimal height of the central partition layer is between 15 and 18 millimeters, the alloy hardness is uniform, and the blue scorching phenomenon is not generated, so that the mould structure designed by the method finally obtains a substantial theorem:

1. under the condition of 6 layers of dies, the central partition method is used for ensuring the production yield of the hard alloy tool bit and ensuring the stability of alloy sintering.

2. The method can relieve the damage of the graphite mould caused by the high temperature of the central point of the alloy in the sintering and pressing process, and greatly prolongs the service life of the graphite mould.

3. For a matrix formula with high sintering temperature, the method can be used for high-efficiency production and stable quality, and the alloy powder is applied to 6-layer die production by using metal powder with more application and fine granularity, and the definitions are as follows:

(1) the hard alloy matrix formula with high sintering temperature leads the center layer cutter head to be sintered and over-fired in the current generally applied 6-layer die production in the sintering process of the alloy due to the over-high temperature of the center point, so that the product quality is unstable

(2) Because the 6 layers of moulds are unreasonable in structure and the high sintering temperature is generated in the central area layer, the superfine alloy powder capable of reducing the sintering temperature is not high-temperature resistant and is easy to sinter and stick to a mould, so that the service life of a graphite mould is reduced, and on the other hand, the sintering temperature of the sintered alloy with the corresponding value is too high, the original purpose of the formula design of a matrix is violated, and the hidden danger of the hard alloy in the center on the quality aspect is overcome.

(3) The ultrathin hard alloy cutter head is thin in thickness and powder layer, so that the phenomenon of fire passing during sintering is more easily caused in the production process of 6 layers of dies, and the central partition method perfectly solves several production technical defects of the ultrathin hard alloy cutter head due to the thin powder layer.

4. Use the center to cut off the design of method, can cut off the layer and design into general size, change the thickness size of brightness alloy tool bit with the thickness on other graphite layers, realize satisfying the production demand of a mould many sizes tool bit with the structure of more practical more commonality, that is to say, at the carbide tool bit of producing different thickness sizes, need not change the center and cut off the layer, only need to change the graphite jig of other numbers of piles and can satisfy the production of different thickness and size.

Under the circumstances such as two-layer, four layers, six layers of mould, all there is above-mentioned defect, so utility model structural style include but not limited to the structural style of two-layer mould, four layers of mould, six layers of moulds.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (4)

1. The utility model provides an ultra-thin carbide tool bit structure of area center wall, includes the carbide tool bit layer on even layer, its characterized in that: a graphite mold center partition layer is arranged between every two adjacent middle hard alloy cutter head layers, and graphite mold pressure heads are arranged on the outer sides of the two outermost hard alloy cutter head layers.

2. The ultra-thin cemented carbide insert structure with the central partition of claim 1, wherein: the quantity of carbide tool bit layer is two-layer, graphite mould center partition layer is located between two carbide tool bit layers, the graphite mould pressure head is located two carbide tool bit layer both sides.

3. The ultra-thin cemented carbide insert structure with the central partition of claim 1, wherein: the quantity of carbide tool bit layer is four layers, be equipped with graphite mould layer between the carbide tool bit layer of graphite mould center partition layer homonymy, graphite mould center partition layer both sides are carbide tool bit layer, graphite mould layer, carbide tool bit layer, graphite mould pressure head in proper order.

4. The ultra-thin cemented carbide insert structure with the central partition of claim 1, wherein: the quantity on carbide tool bit layer is six layers, be equipped with graphite mould layer between the carbide tool bit layer of graphite mould center partition layer homonymy, graphite mould center partition layer both sides are carbide tool bit layer, graphite mould layer, carbide tool bit layer, graphite mould pressure head in proper order.

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