阅读说明：本技术 一种钻铣攻丝一体化复合刀具 (Drilling, milling and tapping integrated compound cutter ) 是由 高国元 于 2019-08-30 设计创作，主要内容包括：本发明公开了一种钻铣攻丝一体化复合刀具,包括刀具本体、麻花钻头部、第一倒角铣刀部、第二倒角铣刀部、攻丝部,所述的刀具本体下端设有麻花钻头部,所述的麻花钻头部上端设有第一倒角铣刀部,所述的第一倒角铣刀部上端设有第二倒角铣刀部,所述的第一倒角铣刀部与第二倒角铣刀部对称设置,所述的第二倒角铣刀部上端设有攻丝部,本发明通过将刀具上设置麻花钻头部、铣刀部和攻丝部,通过一把刀具能够同时实现钻孔、铣倒角和攻丝功能,无需反复更换刀具,节省工序,提高加工效率,提高加工精度。(The invention discloses a drilling, milling and tapping integrated composite cutter, which comprises a cutter body, a twist drill head part, a first chamfer milling cutter part, a second chamfer milling cutter part and a tapping part, wherein the twist drill head part is arranged at the lower end of the cutter body, the first chamfer milling cutter part is arranged at the upper end of the twist drill head part, the second chamfer milling cutter part is arranged at the upper end of the first chamfer milling cutter part, the first chamfer milling cutter part and the second chamfer milling cutter part are symmetrically arranged, and the tapping part is arranged at the upper end of the second chamfer milling cutter part.)

1. The utility model provides a bore and mill tapping integration combined tool which characterized in that: including cutter body (1), fluted drill head portion (2), first chamfer milling cutter portion (3), second chamfer milling cutter portion (4), tapping portion (5), cutter body (1) lower extreme be equipped with fluted drill head portion (2), fluted drill head portion (2) upper end be equipped with first chamfer milling cutter portion (3), first chamfer milling cutter portion (3) upper end be equipped with second chamfer milling cutter portion (4), first chamfer milling cutter portion (3) and second chamfer milling cutter portion (4) symmetry set up, second chamfer milling cutter portion (4) upper end be equipped with tapping portion (5).

2. The integrated drilling, milling and tapping compound tool as set forth in claim 1, wherein: the upper end of the tapping part (5) is provided with a drill rod fixing part (6) which can be matched with a drill chuck.

3. The integrated drilling, milling and tapping compound tool as set forth in claim 2, wherein: the diameter of the drill rod fixing part (6) is slightly smaller than that of the tapping part (5).

4. The integrated drilling, milling and tapping compound tool as set forth in claim 2, wherein: the cross section of the drill rod fixing part (6) is circular or regular polygon.

5. The integrated drilling, milling and tapping compound tool as set forth in claim 1, wherein: and a thin rod connecting part (7) is arranged between the first chamfer milling cutter part (3) and the second chamfer milling cutter part (4), and the diameter of the thin rod connecting part (7) is the thinnest part of the whole cutter.

6. The integrated drilling, milling and tapping compound tool as set forth in claim 1, wherein: the twist drill head (2), the first chamfer milling cutter part (3), the second chamfer milling cutter part (4) and the tapping part (5) are coaxially arranged.

7. The integrated drilling, milling and tapping compound tool as set forth in claim 1, wherein: the tapping part (5) are provided with a plurality of tapping part chip guide grooves (51), at least two tapping part chip guide grooves (51) are formed, and the tapping part chip guide grooves (51) are spirally arranged around the tapping part (5) in a rising mode.

8. The integrated drilling, milling and tapping compound tool as set forth in claim 1, wherein: the outer diameter model of the tapping part (5) is matched with the outer diameter model of the twist drill head part (2).

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of cutters, in particular to the technical field of drilling, milling and tapping integrated composite cutters.

[ background of the invention ]

A tool is a tool used for cutting machining in machine manufacturing, and is also called a cutting tool. Most knives are machine, but also hand-held. Since tools used in machine manufacturing are basically used for cutting metal materials, the term "tool" is generally understood to mean a metal cutting tool. The cutting tools for cutting wood are called woodworking tools. There is also a class of tools of particular application for geological exploration, well drilling, mine drilling, known as mine tools. The cutter that needs to use in machining includes instruments such as drill bit, milling cutter, screw tap, and various instruments all have different effects, and drill bit drilling, milling cutter carry out chamfer or cutting, and the screw tap is used for the tapping, and current equipment need constantly change the cutter according to the demand, and the process is complicated, and influences the precision.

[ summary of the invention ]

The invention aims to solve the problems in the prior art, and provides a drilling, milling and tapping integrated composite cutter which can realize the functions of drilling, milling, chamfering and tapping simultaneously by one cutter without replacing the cutter, saves working procedures, improves the processing efficiency and improves the processing precision.

In order to achieve the purpose, the invention provides a drilling, milling and tapping integrated composite cutter, which comprises a cutter body, a twist drill head, a first chamfer milling cutter part, a second chamfer milling cutter part and a tapping part, wherein the twist drill head is arranged at the lower end of the cutter body, the first chamfer milling cutter part is arranged at the upper end of the twist drill head, the second chamfer milling cutter part is arranged at the upper end of the first chamfer milling cutter part, the first chamfer milling cutter part and the second chamfer milling cutter part are symmetrically arranged, and the tapping part is arranged at the upper end of the second chamfer milling cutter part.

Preferably, the upper end of the tapping part is provided with a drill rod fixing part which can be matched with the drill chuck.

Preferably, the diameter of the drill rod fixing part is slightly smaller than that of the tapping part.

Preferably, the cross section of the drill rod fixing part is circular or regular polygon.

Preferably, a thin rod connecting part is arranged between the first chamfer milling cutter part and the second chamfer milling cutter part, and the diameter of the thin rod connecting part is the diameter of the smallest part of the whole cutter.

Preferably, the twist drill head, the first chamfer milling cutter part, the second chamfer milling cutter part and the tapping part are coaxially arranged.

Preferably, a plurality of tapping part chip guide grooves are formed in the tapping part, at least two tapping part chip guide grooves are formed in the tapping part, and the tapping part chip guide grooves are arranged in a spiral rising mode around the tapping part.

Preferably, the external diameter model of the tapping part is matched with the external diameter model of the twist drill head.

The drilling, milling and tapping integrated compound cutter has the beneficial effects that: according to the invention, the twist drill head part, the milling cutter part and the tapping part are arranged on the cutter, so that the functions of drilling, milling, chamfering and tapping can be realized simultaneously by one cutter without repeatedly replacing the cutter, the working procedures are saved, the processing efficiency is improved, and the processing precision is improved.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a schematic structural view of a drilling, milling and tapping integrated compound cutter.

in the figure: 1-a cutter body, 2-a twist drill head, 3-a first chamfer milling cutter part, 4-a second chamfer milling cutter part, 5-a tapping part, 6-a drill rod fixing part and 7-a thin rod connecting part.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention

Referring to fig. 1, the drilling, milling and tapping integrated composite tool comprises a tool body 1, a twist drill head 2, a first chamfer milling cutter part 3, a second chamfer milling cutter part 4 and a tapping part 5, wherein the twist drill head 2 is arranged at the lower end of the tool body 1, the first chamfer milling cutter part 3 is arranged at the upper end of the twist drill head 2, the second chamfer milling cutter part 4 is arranged at the upper end of the first chamfer milling cutter part 3, the first chamfer milling cutter part 3 and the second chamfer milling cutter part 4 are symmetrically arranged, the tapping part 5 is arranged at the upper end of the second chamfer milling cutter part 4, a drill rod fixing part 6 which can be matched with a drill chuck is arranged at the upper end of the tapping part 5, the diameter of the drill rod fixing part 6 is slightly smaller than that of the tapping part 5, the transverse section of the drill rod fixing part 6 is circular or regular polygon, a fine rod connecting part 7 is arranged between the first chamfer milling cutter part 3 and the second chamfer milling cutter part 4, thin pole connecting portion 7's diameter for whole root cutter diameter finest department, fluted drill head portion 2, first chamfer milling cutter portion 3, second chamfer milling cutter portion 4, the coaxial setting of tapping portion 5, tapping portion 5 on a plurality of tapping portion chip guide grooves 51 that are equipped with, tapping portion chip guide grooves 51 have two at least, tapping portion chip guide grooves 51 around 5 spiral rises of tapping portion and set up, the external diameter model of tapping portion 5 and the external diameter model cooperation of fluted drill head portion 2.

The working process of the invention is as follows:

In the working process of the drilling, milling and tapping integrated composite tool, the upper end of the tool is fixed with a chuck of a machine tool through a drill rod fixing part 6, a workpiece is drilled through a twist drill head part 2, the tool is continuously sunk into a hole drilled in the workpiece until a thin rod connecting part 7 is positioned in the center of the hole, the tool is moved, a first chamfer milling cutter part 3 is contacted with the lower end of the edge of the hole, the tool rotates circularly to chamfer the lower end of the hole, similarly, the upper end of the hole is chamfered through a second chamfer milling cutter part 4, and then the hole is tapped through a tapping part 5.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.