CN107671341A - A kind of combination forming milling cutter - Google Patents

Abstract

The invention discloses a combined forming slot milling cutter, which comprises a cutter head and a cutter rod, and is characterized in that: the cutter head comprises a first cutting tooth, a second cutting tooth, a third cutting tooth, a fourth cutting tooth and four cutter edge seats which are annularly and uniformly distributed, the first cutting tooth, the second cutting tooth, the third cutting tooth and the fourth cutting tooth are arranged on the corresponding cutter edge seats, the heights of the first cutting tooth, the second cutting tooth, the third cutting tooth and the fourth cutting tooth are not overlapped with each other, a chip discharge groove is formed between the cutter edge seats, and the first cutting tooth comprises a first front cutter face, a first rear cutter face and a first cutting edge formed by intersecting the first front cutter face and the first rear cutter face; the second cutting tooth comprises a second front cutter surface, a second rear cutter surface and a second cutting edge formed by intersecting the second front cutter surface and the second rear cutter surface; the third cutting tooth comprises a third front cutter surface, a third rear cutter surface and a third cutting edge formed by intersecting the third front cutter surface and the third rear cutter surface; the fourth cutting tooth comprises a fourth rake surface, a fourth relief surface, and a fourth cutting edge formed by the intersection of the fourth rake surface and the fourth relief surface.

Description

A kind of combination forming milling cutter

technical field

The invention relates to a cutting tool, in particular to a composite groove milling cutter.

Background technique

Mobile phone parts need to process four grooves of different specifications on the same surface. In the past, four different milling cutters were used to process them separately. High efficiency, low efficiency and high cost, we have designed a combined forming slot milling cutter to solve it.

Contents of the invention

In order to overcome the deficiencies of the prior art, the invention provides a combined shape milling cutter.

The technical solution adopted by the present invention to solve its technical problems is:

A combined milling cutter, including a cutter head and a cutter bar, is characterized in that: the cutter head includes a first cutting tooth, a second cutting tooth, a third cutting tooth, a fourth cutting tooth and four ring-shaped evenly distributed The blade seat, the first cutting tooth, the second cutting tooth, the third cutting tooth, and the fourth cutting tooth are arranged on the corresponding blade seat and the heights do not overlap each other, and chip removal grooves are provided between the blade seats, and the The first cutting tooth includes a first rake face, a first flank face, and a first cutting edge formed by the intersection of the first rake face and the first flank face; the second cutting tooth includes a second rake face, The second flank, and the second cutting edge formed by the intersection of the second rake face and the second flank; the third cutting tooth includes a third rake face, a third flank, and a third rake The third cutting edge formed by the intersection of the fourth rake face and the third flank; the fourth cutting tooth includes the fourth rake face, the fourth flank, and the fourth rake face and the fourth flank formed by the intersection of the fourth rake face Four cutting edges.

The shapes of the first cutting edge and the third cutting edge are oblique straight lines.

The shapes of the second cutting edge and the fourth cutting edge are lines formed by smoothly connecting oblique straight lines and arcs.

The blade seats are arranged vertically to each other.

A knife neck with a diameter smaller than the knife bar is arranged between the knife head and the knife bar.

The beneficial effects of the present invention are: the present invention includes a cutter head and a cutter bar, and is characterized in that: the cutter head includes a first cutting tooth, a second cutting tooth, a third cutting tooth, a fourth cutting tooth and four annularly uniformly distributed The blade seat, the first cutting tooth, the second cutting tooth, the third cutting tooth, and the fourth cutting tooth are arranged on the corresponding blade seat and the heights do not overlap each other, so that in one processing, the above four cutting teeth can be used in the Four grooves of different specifications are machined on the mobile phone parts without tool change and positioning, so the processing technology is low in difficulty, high in efficiency and low in cost.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a structural view of the present invention;

Fig. 2 is the profile diagram of the first cutting tooth;

Fig. 3 is the profile diagram of the second cutting tooth;

Fig. 4 is the tooth profile diagram of the third cutting tooth;

Fig. 5 is a tooth profile diagram of a fourth cutting tooth.

detailed description

Referring to Figures 1 to 5, the present invention discloses a composite milling cutter, including a cutter head 1 and a cutter bar 2, the cutter head 1 includes a first cutting tooth 3, a second cutting tooth 4, a third cutting tooth 5. The fourth cutting tooth 6 and four annular uniformly distributed blade seats 7, the first cutting tooth 3, the second cutting tooth 4, the third cutting tooth 5, and the fourth cutting tooth 6 are arranged on the corresponding blade seats 7 and the heights do not overlap with each other, so that four parallel grooves can be cut on the mobile phone parts, and chip removal grooves 8 are arranged between the blade seats 7, and the first cutting teeth 3 include the first rake face, the second A flank, and the first cutting edge 9 formed by the intersection of the first rake face and the first flank; the second cutting tooth 4 includes a second rake face, a second flank, and a second front The second cutting edge 10 formed by the intersection of the rake face and the second flank face; the third cutting tooth 5 includes a third rake face, a third flank face, and the intersection of the third rake face and the third flank face The third cutting edge 11 is formed; the fourth cutting tooth 6 includes a fourth rake face, a fourth flank face, and a fourth cutting edge 12 formed by the intersection of the fourth rake face and the fourth flank face.

As shown in the figure, the shapes of the first cutting edge 9 and the third cutting edge 11 are oblique straight lines, and the groove bottoms of the grooves cut out by them are inclined planes.

As shown in the figure, the shapes of the second cutting edge 10 and the fourth cutting edge 12 are line grooves formed by smoothly connecting oblique straight lines and arcs, and the bottom of the grooves is a plane connected with an arc surface.

The blade seats 7 are arranged perpendicular to each other, so that the two groove walls of the chip removal groove 8 intersect to form a 90-degree straight groove, and the straight groove is inclined to form a certain angle with the axis of the cutter bar 2 .

A knife neck 13 with a diameter smaller than that of the knife bar 2 is provided between the cutter head 1 and the knife bar 2, because this structure is combined cutting of multiple cutting edges, and the position height of each cutting edge is different, so in order to ensure the strength of the cutting edge And function, preferably set up as a straight groove.

A knife neck 13 with a diameter smaller than the knife bar 2 is provided between the cutter head 1 and the knife bar 2, and the knife neck 13 can avoid touching mobile phone parts during processing, so that the knife bar 2 can descend to a greater depth, The range of processing is wider.

The above is a detailed introduction to a combined groove milling cutter provided by the embodiment of the present invention. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiment is only used to help understand the present invention. The method of the invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be understood To limit the present invention.

Claims (5)

1. a kind of combination forming grooving cutter, including cutter head and knife bar, it is characterised in that：The cutter head includes the first cutting tooth, the Two cutting tooths, the 3rd cutting tooth, the 4th cutting tooth and the uniform knife edge seat of four annulars, first cutting tooth, the second cutting Tooth, the 3rd cutting tooth, the 4th cutting tooth is arranged on corresponding knife edge seat and height non-overlapping copies, the row of being provided between the knife edge seat Consider groove to be worth doing, first cutting tooth includes major first face, major first flank and major first face and the intersecting composition of major first flank The first cutting edge；Second cutting tooth includes knife face after knife face after the second rake face, second and the second rake face and second Intersecting the second cutting edge formed；3rd cutting tooth includes the 3rd rake face, knife face and the 3rd rake face and the after the 3rd Intersecting the 3rd cutting edge formed of knife face after three；Before 4th cutting tooth is including knife face and the 4th after the 4th rake face, the 4th Intersecting the 4th cutting edge formed of knife face after knife face and the 4th.

A kind of 2. combination forming grooving cutter according to claim 1, it is characterised in that：First cutting edge and the 3rd cut The shape for cutting sword is skew lines.

A kind of 3. combination forming grooving cutter according to claim 1, it is characterised in that：Second cutting edge and the 4th cut The shape for cutting sword is the lines that skew lines and camber line are smoothly connected composition.

A kind of 4. combination forming grooving cutter according to claim 1, it is characterised in that：The knife edge seat is orthogonal to be set Put.

A kind of 5. combination forming grooving cutter according to claim 1, it is characterised in that：It is provided between the cutter head and knife bar straight Footpath is less than the knife neck of knife bar.