CN218311027U

CN218311027U - Multifunctional herringbone cutter head

Info

Publication number: CN218311027U
Application number: CN202221831065.7U
Authority: CN
Inventors: 陈乐�
Original assignee: Zhenjiang Htt Tool Co ltd
Current assignee: Zhenjiang Htt Tool Co ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2023-01-17
Anticipated expiration: 2032-07-15

Abstract

A multifunctional herringbone cutter head comprises a cutter body and three cutting edges, wherein the three cutting edges are arranged in a herringbone mode, the beveling angle of the cutting edge surface of each cutting edge is 1-15 degrees, and the cutting edges are provided with transverse chip grooves. The application provides a multi-functional chevron shape tool bit has combined the advantage of cross tool bit and cross tool bit, and stability is good, is favorable to the piece to be proposed, and work efficiency is high, product life is long.

Description

Multifunctional herringbone cutter head

Technical Field

The utility model relates to a tool bit that the electric drill was used, especially a multi-functional chevron shape tool bit.

Background

The electric drill is a tool commonly used for building and decoration, the tool bit is the most key part of the electric drill, the using effect, the service life and the like of the tool bit determine the quality of the tool, the working quality and the working efficiency, and two types of tool bits, namely a cross tool bit and a straight tool bit, are mainly arranged in the market at present. The conventional cross cutter, as shown in fig. 1 and 2, comprising a cutter body 1 and a cutting edge 2, has disadvantages in that the chip removal rate of drilling is slow, resulting in an increase in drilling resistance, the bit is shaken more while drilling, the wear of the alloy cutter is increased, thereby reducing the bit life of the bit, and the cross-sectional roughness of the drilled hole is large. The conventional in-line cutter, as shown in fig. 3 and 4, comprising a cutter body 1 and a cutting edge 2, has disadvantages in that under the working conditions of high object of drilling hardness and increased strength, the wear is fast, the life is short, and the cutting edge passivation phenomenon rapidly occurs to affect the drilling speed and effect, and at the same time, the operator feels labourious. The drill bit is particularly used on a drill bit with a large diameter, and the disadvantages of short service life and low speed are further embodied.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multifunctional herringbone cutter head, which solves the technical problems.

The multifunctional herringbone cutter head comprises a cutter body and three cutting edges, wherein the three cutting edges are arranged in a herringbone mode, the beveling angle of the cutting edge surface of each cutting edge is 1-15 degrees, and the cutting edges are provided with transverse chip grooves.

Preferably, the cutting edge is an arc surface, or the cutting edge is formed by tangency of a plurality of planes to form a step.

Preferably, the transverse flutes are located on the same side of the cutting edge, or the transverse flutes are through flutes.

Preferably, the intersection of two adjacent blade side surfaces is provided with a chamfer design, and the chamfer radius is between 0.03 and 20 mm.

Preferably, the meeting edges of two adjacent cutting edges are edges, the edges are intersected to form an apex, and the apex and the edges form a turbine positioning point.

The application provides a multi-functional chevron head, has combined the advantage of cross tool bit and cross tool bit, and stability is good, is favorable to the piece to be proposed, and work efficiency is high, and the product life is long.

Drawings

Fig. 1 is a front view of a conventional cross head.

Fig. 2 is a top view of a prior art crosshead.

Fig. 3 is a front view of a conventional in-line cutter head.

Fig. 4 is a top view of a conventional in-line bit.

Fig. 5 is a front view of the multifunction herringbone cutter head of embodiment 1.

FIG. 6 is a top view of the multi-function herringbone cutter head of embodiment 1.

Fig. 7 is a front view of the multifunctional chevron head of embodiment 2.

FIG. 8 is a top view of the multi-function herringbone cutter head of embodiment 2.

Detailed Description

The application will now be further described by way of example with reference to the accompanying drawings.

Example 1

As shown in fig. 5 and 6, the multifunctional herringbone cutter head comprises a cutter body 10 and cutting edges 20, wherein the cutting edges 20 are three and arranged in a herringbone manner, the design increases the strength and the wear resistance of the drilling working part of the cutter head, and simultaneously considers the characteristics of cost control of a cross cutter head and a straight cutter head, strength improvement and service life improvement of the cutter head; the cutting edge surface 21 of the cutting edge 20 is slightly inclined, the beveling angle is preferably 1-15 degrees, the cutting edge 20 is provided with a transverse chip removal groove 22, the transverse chip removal groove 22 is arranged on the same side edge of the cutting edge, namely, a groove is formed in the side edge of the inclined surface which is relatively lower, the chip removal space of the transverse chip removal groove 22 is enlarged, strong air flow is formed to help dust to be discharged quickly, the friction resistance between a drill bit and a drilling object is reduced, the abrasion degree of a tool bit and a drill rod is reduced, the service life of the drill bit is prolonged, and compared with a conventional cross-shaped drill bit, the chip removal space of the drill bit for drilling is larger, the chip removal speed is improved, the drilling resistance is reduced, the shaking and the vibration of the drill bit for drilling are reduced, and the section smoothness of a hole body is better; the cutting edge 20 is a cambered surface, and the cambered edge is matched with a fragile high-hardness material, so that holes can be smoothly punched to avoid cracking of the hole edge, and a smoother section is obtained; in addition, the design of the chamfer is arranged at the intersection of two adjacent cutter bodies 10, the radius of the chamfer 30 is 0.03-20mm according to the size and the strength requirement of the cutter head, the connection of the cutter bodies can be enhanced, the risk that the strength of the cutting edge is reduced due to the fact that the alloy cutter head is uneven in density possibly existing in the powder die-casting forming process is avoided, the bending strength of the alloy of the cutter head is ensured to be large enough, the cracking phenomenon in the firing process and the subsequent drill bit welding process is avoided, meanwhile, the strength of a middle drilling working part is strengthened, and the service life of the cutter head and the abrasion is prolonged.

The edges 23 of two adjacent blades 20 meet, the edges 23 meet to form an apex 24, the apex 24 and the edges 23 form a turbine positioning point, and the edges 23 are arc lines. The multi-functional chevron-shaped tool bit of this kind of design can carry out broken drilling to the machined object sooner, the passivation of any one sword limit can not influence holistic speed of punching, because other sword limits play same working effect in addition, thereby improved the tool bit sharpness greatly and kept for a longer time, let drill bit drilling performance keep more lasting quick drilling, at smooth material surface drilling, what this design can be faster squeezes into the material surface and play the effect of quick location and avoid skidding, can punch the operation to the material of multiple different materials.

Example 2

Different from embodiment 1, the cutting edge 21 of the cutting edge 20 of the embodiment is a plurality of planes tangent to form steps, the number of the step faces is preferably 3-6, the step-type cutting edge is adapted to a high-hardness and high-strength material, the material can be simultaneously cut and fed by a plurality of cutting edges, the punching resistance is reduced, the punching speed is improved, the service life of a tool bit alloy is prolonged, the hole can be drilled under impact, the multi-material multifunctional punching purpose is achieved, in addition, the chip grooves 22 in the transverse arrangement on the cutting edge are through grooves, the chip removal effect can be enhanced, and the stability of the tool bit in working can be improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A multifunctional herringbone cutter head comprises a cutter body and three cutting edges, and is characterized in that the three cutting edges are arranged in a herringbone mode, the beveling angle of the cutting edge surface of each cutting edge is 1-15 degrees, and chip grooves are transversely arranged on the cutting edges.

2. The multi-functional chevron head of claim 1, wherein said cutting edge is a curved surface or a plurality of flat surfaces tangent to form steps.

3. The multi-functional herringbone cutter head according to claim 1 or 2, wherein said lateral flutes are provided on the same side of the cutting edge, or the lateral flutes are through-grooves.

4. The multi-functional herringbone cutter head of claim 1 or 2, wherein the intersection between two adjacent blade sides has a chamfer design with a chamfer radius of between 0.03 mm and 20 mm.

5. The multi-functional herringbone tool bit of claim 1 or 2, wherein said adjoining edges are edges, said edges intersect to form a tip, and said tip and said edges form a turbine location point.