CN209255866U

CN209255866U - Dovetail knife structure

Info

Publication number: CN209255866U
Application number: CN201821950322.2U
Authority: CN
Inventors: 蔡进锠
Original assignee: KUNSHAN GAOWEI PRECISION TOOLS CO Ltd
Current assignee: KUNSHAN GAOWEI PRECISION TOOLS CO Ltd
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2019-08-16
Anticipated expiration: 2028-11-26
Also published as: TWM594508U

Abstract

The utility model dovetail knife structure feature is will to be equipped with one first blade part in cutter head, and one second blade part, first blade part has one first blade section, and one connect the first blade section the first point of a knife section, second blade part has a second blade section for connecting the first blade section, and one connect the second blade section the second point of a knife section, use friction area when can be substantially reduced cutting, it can prevent temperature overheating, through the auxiliary of the first point of a knife section and the second point of a knife section, achieve the purpose that quickly to cut, in addition first chip removal flute extended toward the knife handle is formed between the first blade section of arranging in pairs or groups and the second point of a knife section, the second chip removal flute for forming opposite first chip removal flute between the second blade section and the first point of a knife section and extending toward the knife handle, reach chip removal smoothly to act on, effectively prolong its service life.

Description

Dovetail knife structure

Technical field

For the utility model about dovetail knife structure, especially a kind of cutting face of knife-edge leading end when avoiding actuation is entirely same When contact workpiece and generate the excessively high phenomenon of temperature, can promote that chip removal is smooth, reduces the workpiece surface swallow bursting apart and quickly cut Tail knife structure.

Background technique

When the blade end of traditional tack knife is contacted with wooden unit carries out high speed rotation cutwork, due to the tack knife Blade contact surface generates high temperature because of the outer surface of CONTACT WITH FRICTION wooden unit, and then is easy to appear the problem of collapsing and damaging, at this point, It is easy to cause the scratch of product finished surface because of the blade contact surface, and promotes the fraction defective of product cutting.

Furthermore if the sharpness of blade reduces, the detritus of cutting can be made not easy to break, chip removal resistance is caused to increase and chip removal It has some setbacks, the blade of the tack knife is allowed to generate friction high fever, and increase the abrasion of the tack knife, cause operation more not convenient, Therefore its service life can also be reduced.

Utility model content

The purpose of this utility model is to provide a kind of dovetail knife structure, when processing mainly can hierarchy come into contact with work The outer surface of part, energy Decentralized Friction temperature, promotion chip removal is smooth, reduces the purpose that workpiece surface bursts apart and quickly cuts.

Then, in order to reach foregoing purpose, a kind of dovetail knife structure is provided according to the utility model, comprising:

One knife handle；With an axis and a cutter head, one end of the knife handle is set to along the axis with being integrally formed；It is special Sign is that the cutter head is equipped with one first blade part and a cutting edge connects the second blade part of first blade part, first knife Blade has one first blade section and one connects the first point of a knife section of the first blade section, which has a connection Second blade section of the first blade section and one connect the second blade section the second point of a knife section, the first blade section and this First chip removal flute extended toward the knife handle is formed between one point of a knife section, is formed between the second blade section and the second point of a knife section One opposite first chip removal flute and the second chip removal flute extended toward the knife handle, the outer surface of first blade part and second blade The outer surface in portion forms a plurality of cutting line segments.

Preferably, the first blade section has a first inclined blade face, the first point of a knife section is inclined with one The first point of a knife face, the inclined angle of the first blade face be greater than the inclined angle in the first point of a knife face, the second blade section tool There is a second inclined blade face, which has a second inclined point of a knife face, second blade face inclination Angle be greater than the inclined angle in the second point of a knife face.

Preferably, first blade face is identical as the inclined angle of second blade face, the first point of a knife face and this The inclined angle in two point of a knife faces is identical.

Preferably, first chip removal flute is all identical as the length and width degree of second chip removal flute.

Preferably, the knife handle is the uniform cylindrical body of outer diameter.

Whereby, the utility model is characterized in that one first blade part and one second blade part, first knife will be equipped in cutter head Blade has one first blade section and one connects the first point of a knife section of the first blade section, which has a connection Second blade section of the first blade section and one connect the second blade section the second point of a knife section, use to be substantially reduced and cut Friction area when cutting can prevent temperature overheating, through the auxiliary of the first point of a knife section and the second point of a knife section, reach and quickly cut The purpose cut forms first chip removal extended toward the knife handle between the first blade section of in addition arranging in pairs or groups and the second point of a knife section Ditch, the second row for forming opposite first chip removal flute between the second blade section and the first point of a knife section and extending toward the knife handle It considers ditch to be worth doing, reaches chip removal and smoothly act on, effectively prolong its service life.

Detailed description of the invention

Fig. 1 is the perspective view of the utility model embodiment.

Fig. 2 is the top view of the utility model embodiment.

Fig. 3 is the amplification stereogram of the utility model embodiment.

Fig. 4 is the usage state diagram of the utility model embodiment.

Description of symbols:

Knife handle 10

Axis 11

Cutter head 20

First blade part 21

First blade section 211

First blade face 2110

First point of a knife section 212

First point of a knife face 2120

Second blade part 22

Second point of a knife section 222

First chip removal flute 24

Cut line segment 26

Specific embodiment

Shown in please referring to Fig.1 to Fig.4, the utility model embodiment provides a kind of dovetail knife structure, mainly by a knife handle 10 and one cutter head 20 formed, in which:

The knife handle 10；With an axis 11；Specifically, the knife handle 10 is the uniform cylindrical body of outer diameter.

The cutter head 20 is set to one end of the knife handle 10 along the axis 11 with being integrally formed.

Since the connection type of the knife handle 10 and the cutter head 20 is all known, and its make flowing mode with it is known identical, also The creation emphasis of non-this case, therefore for the detailed construction of the component (knife handle 10), assembling mode and to make flowing mode no longer detailed It states.

The cutter head 20 is equipped with one first blade part 21 and one and axisymmetricly and with a cutting edge 23 connects first blade part There is one first blade section 211 and one to connect the first blade section 211 for 21 the second blade part 22, first blade part 21 First point of a knife section 212, second blade part 22 have the second blade section 221 and a connection for connecting the first blade section 211 Second point of a knife section 222 of the second blade section 221, formation one is past between the first blade section 211 and the first point of a knife section 212 should The first chip removal flute 24 that knife handle 10 extends, formed between the second blade section 221 and the second point of a knife section 222 one it is opposite this first Chip removal flute 24 and the second chip removal flute 25 extended toward the knife handle 10, the length and width of first chip removal flute 24 and second chip removal flute 25 Degree is all identical, and the outer surface of the outer surface of first blade part 21 and second blade part 22 forms a plurality of cutting line segments 26, Respectively the spacing of plural number cutting line segment 26 is equal and extends toward 10 direction of knife handle.Wherein, first blade part 21 and this second Blade part 22 from top to bottom processes wooden unit A with fixed frequency in work pieces process cutting process, makes to cut out wooden unit A Surface it is more smooth and be not susceptible to workpiece surface and burst apart situation.In addition, through the first point of a knife section 212 and the second point of a knife section 221 auxiliary, can reach reduction friction with quickly cutting the effect of, enable the utility model when being cut it is more labor-saving with it is fast Speed and improve the benefits such as working efficiency, at the same chip caused by cutting more can via first chip removal flute 24 and this second Chip removal flute 25, in the design of arcuation, reaches quick chip removal, and reduce wooden unit A and split material and other effects toward the knife handle 10.

It is noted that the first blade section 211 has a first inclined blade face 2110, the first point of a knife section 212 have a first inclined point of a knife face 2120, which is greater than the first point of a knife face 2120 inclined angles, the second blade section 221 have a second inclined blade face 2210, the second point of a knife section 222 tool There is a second inclined point of a knife face 2220, which tilts greater than the second point of a knife face 2220 Angle；Specifically, first blade face 2110 is identical as the inclined angle of second blade face 2210, first point of a knife Face 2120 is identical as the inclined angle in the second point of a knife face 2220, wherein the first point of a knife face 2120 and the first point of a knife face 2120 about 8 degree of inclined angles, first blade face 2110 and about 45 degree of the 2210 inclined angle of the second blade face, in transmission The design stated to reach the effect of quickly cutting and have both heat dissipation, and facilitates more laborsaving when cutting and improves working efficiency Effect.

The above is the configuration explanation of each main member of the utility model embodiment.The effect of as the utility model It is described as follows:

First, preventing the temperature overheating in cutting process and reducing service life.

Second, promoting chip removal smoothly function in cutting process.

Third, reach quick cutting in cutting process, it can benefit that is more labor-saving and quick and improving working efficiency.

Fourth, being not susceptible to the situation burst apart due to the outer surface for coming into contact with workpiece of hierarchy, reach promotion The effect of service life.

In conclusion above-described embodiment and attached drawing are only the preferred embodiment of the utility model, when cannot with limit Determine the range of the utility model implementation, equivalent changes and modifications made according to the patent scope of the utility model, are all answered such as In the range of category the utility model patent covers.

Claims

1. a kind of dovetail knife structure, comprising:

One knife handle；With an axis, and

One cutter head is set to one end of the knife handle along the axis with being integrally formed；

It is characterized in that, the cutter head is equipped with one first blade part and a cutting edge connects the second knife of first blade part Blade, first blade part have the first point of a knife section of one first blade section and connection the first blade section, and described the Two blade parts have the second blade section of connection the first blade section and the second point of a knife of connection the second blade section Section, forms first chip removal flute extended toward the knife handle between the first blade section and the first point of a knife section, and described the The second row for forming relatively described first chip removal flute between two blade sections and the second point of a knife section and extending toward the knife handle Consider ditch to be worth doing, the outer surface of first blade part and the outer surface of second blade part form a plurality of cutting line segments.

2. dovetail knife structure as described in claim 1, which is characterized in that the first blade section has one inclined first Blade face, the first point of a knife section have a first inclined point of a knife face, and the inclined angle of the first blade face is greater than institute The first inclined angle in point of a knife face is stated, the second blade section has a second inclined blade face, the second point of a knife section With a second inclined point of a knife face, the inclined angle of the second blade face is greater than the inclined angle in second point of a knife face Degree.

3. dovetail knife structure as claimed in claim 2, which is characterized in that first blade face is in second blade face Inclined angle is identical, and first point of a knife face is identical as the inclined angle in second point of a knife face.

4. dovetail knife structure as described in claim 1, which is characterized in that first chip removal flute and second chip removal flute Length and width degree is all identical.

5. dovetail knife structure as described in claim 1, which is characterized in that the knife handle is the uniform cylindrical body of outer diameter.