CN108817494A - Multi-groove integrally-formed milling cutter - Google Patents

Abstract

The invention discloses a multi-groove integrally formed milling cutter, which comprises a cutter bar, wherein a chip groove, a first cutting seat, a second cutting seat and a third cutting seat are arranged at the end part of the cutter bar, the chip groove, the first cutting seat, the second cutting seat and the third cutting seat are all bent in a spiral shape, an upper cutting edge part is arranged on the first cutting seat, a middle cutting edge part is arranged on the second cutting seat, a lower cutting edge part is arranged on the third cutting seat, the upper cutting edge part, the middle cutting edge part and the lower cutting edge part are different from each other in height from the end surface of the cutter bar, the upper cutting edge part comprises a first upper rear cutter face, and the first upper rear cutter face is intersected with the side wall of the corresponding chip groove to form an upper cutting edge; the middle cutting edge part comprises a first middle rear cutter face, and the first middle rear cutter face is intersected with the side wall of the corresponding chip groove to form a middle cutting edge; the lower cutting edge part comprises a first lower rear cutter face, and the first lower rear cutter face is intersected with the side wall of the corresponding chip groove to form a lower cutting edge.

Description

A multi-groove integrated milling cutter

technical field

The invention relates to a milling cutter, in particular to a multi-slot integrated milling cutter.

Background technique

The outer casing of the Apple camera needs to be processed with four steps of different heights, which are used as waterproof grooves, card grooves, etc., and require good sealing. In the past, multiple knives were used for multiple processing, which required multiple knives and multiple positioning, resulting in high precision. Therefore, the applicant has designed a multi-groove integrated milling cutter for one-time processing and molding, which not only has short processing time, high efficiency, but also low processing cost.

Contents of the invention

In order to overcome the deficiencies of the prior art, the invention provides a multi-groove integrated milling cutter.

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

A multi-groove integrated milling cutter, including a cutter bar, is characterized in that: the end of the cutter bar is provided with a chip removal groove, a first cutting seat, a second cutting seat, and a third cutting seat, and the chip removal groove , the first cutting seat, the second cutting seat, and the third cutting seat are all bent in a spiral shape, and the first cutting seat is provided with an upper cutting edge, and the second cutting seat is provided with a middle cutting edge, The third cutting seat is provided with a lower cutting edge, and the heights of the upper cutting edge, the middle cutting edge, and the lower cutting edge from the end face of the cutter bar are different from each other, and the upper cutting edge includes a first The upper flank, the first upper flank intersects with the side wall of the corresponding flute to form an upper cutting edge; the middle cutting edge portion includes a first middle flank, and the first middle flank and The side walls of the corresponding chip flutes intersect to form a middle cutting edge; the lower cutting edge portion includes a first lower flank, and the first lower flank intersects with the side walls of the corresponding chip flutes to form a lower cutting edge. The shape of the upper cutting edge is a straight line parallel to the central axis of the cutter bar, the shape of the middle cutting edge is V-shaped, and the shape of the lower cutting edge is arc.

The upper cutting edge portion further includes a second upper relief surface; the middle cutting edge portion further includes a second middle relief surface; and the lower cutting edge portion further includes a second lower relief surface.

The beneficial effects of the present invention are: the end of the cutter bar of the present invention is provided with a chip removal groove, a first cutting seat, a second cutting seat, and a third cutting seat, and the first cutting seat is provided with an upper cutting edge , the second cutting seat is provided with a middle cutting edge portion, the third cutting seat is provided with a lower cutting edge portion, and the distance between the upper cutting edge portion, the middle cutting edge portion and the lower cutting edge portion is from the end surface of the tool bar The heights are different from each other, so three grooves of different specifications can be machined on the outer shell through the above-mentioned cutting edge in one processing, without changing the tool 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 perspective view of the present invention;

Fig. 2 is the front view of the present invention;

Fig. 3 is an enlarged view of the cutter head of the present invention.

Detailed ways

Referring to Fig. 1 to Fig. 3, the present invention discloses a multi-groove integrated milling cutter, which includes a cutter bar 1, and the end of the cutter bar 1 is provided with a chip flute 2, a first cutting seat 3, and a second cutting seat 4. The third cutting seat 5, the first cutting seat 3, the second cutting seat 4, and the third cutting seat 5 are all arranged in pairs, and arranged successively. The chip removal groove 2, the first cutting seat 3, Both the second cutting seat 4 and the third cutting seat 5 are curved in a spiral shape to ensure cutting rigidity and high speed of chip removal, and the first cutting seat 3 is provided with an upper cutting edge portion 31, and the second cutting seat 4 is provided with a middle cutting edge portion 41, and the third cutting seat 5 is provided with a lower cutting edge portion 51, and the distance between the upper cutting edge portion 31, the middle cutting edge portion 41 and the lower cutting edge portion 51 The heights of the end faces are different from each other, so that the grooves are milled at different heights. The upper cutting edge portion 31 includes a first upper relief surface 32, and the first upper relief surface 32 is aligned with the side of the corresponding chip flute 2. The walls intersect to form the upper cutting edge 33; the middle cutting edge portion 41 includes a first middle flank 42, and the intersection of the first middle flank 42 and the side wall of the corresponding flute 2 forms the middle cutting edge 43; The lower cutting edge portion 51 includes a first lower flank 52, the first lower flank 52 intersects with the side wall of the corresponding flute 2 to form a lower cutting edge 53, and the shape of the upper cutting edge 33 is straight line and parallel to the central axis of the cutter bar 1, so the upper cutting edge 33 mills out a square groove, and the shape of the middle cutting edge 43 is V-shaped, so the upper cutting edge 33 washes out a V-shaped groove, and the lower cutting edge 53 The shape of the arc is curved, so that a concave arc can be milled.

As shown in the figure, the upper cutting edge 33 portion 31 also includes a second upper flank 34; the middle cutting edge 43 portion 41 also includes a second middle flank 44; the lower cutting edge 53 portion 51 also includes A second lower flank 54 is included.

The above is a detailed introduction of a multi-groove integrated 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 for helping understanding The method of the present 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 construed as a limitation of the invention.

Claims (2)

1. A multi-groove integrated milling cutter, comprising a cutter bar, is characterized in that: the end of the cutter bar is provided with a chip removal groove, a first cutting seat, a second cutting seat, and a third cutting seat, and the row The chip flute, the first cutting seat, the second cutting seat, and the third cutting seat are all bent in a spiral shape, and the first cutting seat is provided with an upper cutting edge, and the second cutting seat is provided with a middle cutting edge portion, the third cutting seat is provided with a lower cutting edge portion, the heights of the upper cutting edge portion, the middle cutting edge portion, and the lower cutting edge portion from the end face of the tool bar are different from each other, and the upper cutting edge portion includes The first upper flank, the first upper flank intersects with the side wall of the corresponding flute to form an upper cutting edge; the middle cutting edge portion includes a first middle flank, and the first middle relief The intersection of the face and the side wall of the corresponding chip flute forms the middle cutting edge; the lower cutting edge portion includes a first lower relief surface, and the intersection of the first lower flank and the side wall of the corresponding chip flute forms the lower cutting edge , the shape of the upper cutting edge is a straight line parallel to the central axis of the cutter bar, the shape of the middle cutting edge is V-shaped, and the shape of the lower cutting edge is arc. 2. A multi-groove integrally formed milling cutter according to claim 1, characterized in that: the upper cutting edge part also includes a second upper relief surface; the middle cutting edge part also includes a second middle relief cutter face; the lower cutting edge also includes a second lower flank.