CN108436158A - A double-sided side milling cutter - Google Patents

Abstract

The invention discloses a double-sided side milling forming cutter, wherein a cutter head is provided with a plurality of combined cutting edge parts, each combined cutting edge part comprises a front arc-shaped milling cutting part, a straight milling cutting part and a rear arc-shaped milling cutting part which are sequentially arranged, the front arc-shaped milling cutting parts are positioned at the end parts of the cutter head, when a mobile phone shell is processed, a cutter is parallel to the back surface of the mobile phone shell, and when the back surface of the mobile phone shell is processed through the straight cutting edges of the straight milling cutting parts, one side surface of the mobile phone shell is processed through the front arc-shaped cutting edges of the front arc-shaped milling cutting parts; the other side surface of the mobile phone shell is processed by the rear arc-shaped cutting edge of the rear arc-shaped milling and cutting part, so that the back surface and the side surface of the mobile phone shell can be simultaneously processed at one time, the mobile phone shell does not need to be subjected to tool changing in the process, tool changing time is saved, efficiency is improved, the precision is better, and the processing cost is lower.

Description

A double-sided side milling cutter

technical field

The invention relates to a cutter, in particular to a double-sided side milling forming cutter.

Background technique

The side of the mobile phone case is usually designed in a smooth arc shape for aesthetics, while the back of the mobile phone case is a smooth plane. Therefore, after the mobile phone case is formed, it needs to be processed into a high-gloss surface with two different tools. The above-mentioned method needs to change the tool, which not only takes a long time to process, but also has low efficiency and high processing cost. Thereby the applicant has designed a double-sided side milling cutter to solve the above problems.

Contents of the invention

In order to overcome the deficiencies of the prior art, the invention provides a double-sided side milling cutter.

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

A double-sided side milling forming cutter, including a cutter bar and a cutter head, is characterized in that: the cutter head is provided with a number of combined cutting edge parts, and the combined cutting edge parts include sequentially arranged front arc milling cutting parts, straight The milling cutting part and the rear arc milling cutting part, the front arc milling cutting part is located at the end of the cutter head, and the cutter head is provided with chip removal grooves extending to the cutter bar, and the chip removal grooves are located in the two combinations Between the cutting edge portions, the straight milling cutting portion includes a straight cutting edge, a straight milling rake face and a straight milling flank, the straight cutting edge is formed by the intersection of the straight milling flank and the straight milling rake face, the The front arc milling cutting part includes a front arc milling cutting edge, a front arc milling rake face and a front arc milling flank, and the front arc milling cutting edge is a front arc milling flank and a front arc milling front The knife faces intersect to form; the rear arc milling cutting part includes a rear arc cutting edge, a rear arc milling rake face and a rear arc milling flank, and the rear arc cutting edge is a rear arc milling cutter The intersection of the front arc cutting edge, the straight cutting edge and the rear arc cutting edge form a continuous smooth line, the front arc milling rake face, the straight milling front The rake face of the cutter face is back arc milling, and the rake face is composed of the edge part of the side wall of the chip flute.

The front arc-shaped milling flank includes the front first arc-shaped milling flank and the front second arc-shaped milling flank; the rear arc-shaped milling flank includes the rear first arc-shaped milling flank and After the second arc milling flank.

The straight milling flank includes a first straight milling flank and a second direct milling flank.

The flutes are helical flutes.

The shapes of the front arc cutting edge and the rear arc cutting edge are both composed of multiple continuous arcs.

The beneficial effects of the present invention are: the cutter head of the present invention is provided with several combined cutting edge parts, and the combined cutting edge parts include the front arc milling cutting part, the straight milling cutting part and the back arc milling cutting part arranged in sequence, so The front arc milling cutting part is located at the end of the cutter head. When processing the mobile phone case, the tool is parallel to the back of the mobile phone case. While processing the back of the mobile phone case through the straight cutting edge of the straight milling cutting part, The front arc cutting edge of the mobile phone casing is processed on one side; the other side of the mobile phone casing can be processed by the rear arc cutting edge of the rear arc milling cutting part, so that the back and side of the mobile phone casing can be processed at the same time. After processing, the above process does not require tool change, which not only saves tool change time, improves efficiency, but also has better precision and lower processing costs.

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.

Detailed ways

Referring to Fig. 1, the present invention discloses a double-sided side milling forming cutter, which includes a circular cutter bar 1 and a cutter head 2, and the cutter head 2 is provided with four combined cutting edges, and the combined cutting edges include sequential The front arc milling cutting part, the straight milling cutting part and the rear arc milling cutting part are provided, the front arc milling cutting part is located at the end of the cutter head, and the cutter head is provided with a chip removal device extending to the cutter bar Groove 3, the chip flute 3 is located between the two combined cutting edge parts, the direct milling cutting part includes a straight cutting edge 4, a straight milling rake face and a straight milling flank, and the straight cutting edge 4 is a straight milling The flank face and the straight milling rake face are intersected to form, the front arc milling cutting part includes the front arc cutting edge 5, the front arc milling rake face and the front arc milling flank, the front arc cutting The edge 5 is formed by the intersection of the front arc milling flank and the front arc milling rake face; the rear arc milling cutting portion includes the rear arc milling cutting edge 6, the rear arc milling rake face and the rear arc milling rear Cutter face, the rear arc cutting edge 6 is formed by the intersection of the rear arc milling flank and the rear arc milling rake face, the front arc cutting edge 5, the straight cutting edge 4 and the rear arc cutting edge 6 Intersect to form a continuous smooth line, the front arc milling rake face, the straight milling rake face and the rear arc milling rake face are all formed by the edge part of the side wall of the chip flute 3 .

As shown in the figure, the straight cutting edge 4 is a helix, but the edge diameter of each point on the helix is the same, so a plane can be cut, and the front arc cutting edge 5 and the rear arc cutting edge 6 The shape of the shape is composed of multiple continuous arcs, and the change of the blade diameter is changed according to the change of the arc, because the arc of the side of the mobile phone case may be composed of multiple arcs with different arcs, so the front arc cutting edge 5 The shape of the rear arc-shaped cutting edge 6 also needs to be composed of multiple continuous arcs matching the contour of the arc surface, so as to process the side of the mobile phone casing.

As shown in the figure, the front arc-shaped milling flank includes the front first arc-shaped milling flank 7 and the front second arc-shaped milling flank 8; the rear arc-shaped milling flank includes the rear first The arc milling flank 9 and the rear second arc milling flank 10; the straight milling flank includes the first straight milling flank 11 and the second straight milling flank 12; in the above structure, continuous The design of multiple flanks is beneficial to gradually reduce the relief angle from a large angle to a small angle relief angle, which can not only ensure that the cutter head 2 has sufficient strength, but also reduce the friction between the cutting edge and the processing surface to prevent heat generation, thereby Effective in improving cutting accuracy.

The chip flute 3 is a spiral flute. The spiral chip flute 3 not only has a large chip capacity, but also the iron chips are pressed by the wall of the chip flute 3 during the rotation of the tool, so that it can be quickly guided Iron filings are discharged.

The above is a detailed introduction of a double-sided side 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 (5)

1. A double-sided side milling cutter, comprising a cutter bar and a cutter head, characterized in that: the cutter head is provided with a number of combined cutting edge portions, and the combined cutting edge portions include sequentially arranged front arc milling cutting portions , a straight milling cutting part and a rear arc milling cutting part, the front arc milling cutting part is located at the end of the cutter head, and the cutter head is provided with a chip removal groove extending to the cutter bar, and the chip removal groove is located at Between the two combined cutting edge parts, the direct milling cutting part includes a straight cutting edge, a straight milling rake face and a straight milling flank, and the straight cutting edge is formed by the intersection of the straight milling flank and the straight milling rake face, The front arc-shaped milling cutting part includes a front arc-shaped cutting edge, a front arc-shaped milling rake face and a front arc-shaped milling flank, and the front arc-shaped cutting edge is a front arc-shaped milling flank and a front arc-shaped milling flank. The milling rake faces intersect to form; the rear arc milling cutting part includes a rear arc cutting edge, a rear arc milling rake face and a rear arc milling flank, and the rear arc cutting edge is a rear arc milling The flank face and the rear arc milling rake face are intersected to form a continuous smooth line. The front arc milling rake face, straight cutting edge The milling rake faces are both curved and the milling rake faces are all formed by the edge part of the side wall of the chip flute. 2. A double-sided side milling forming cutter according to claim 1, characterized in that: the front arc milling flank includes the front first arc milling flank and the front second arc milling flank surface; the rear arc milling flank includes the rear first arc milling flank and the rear second arc milling flank. 3 . The double-sided side milling cutter according to claim 1 , wherein the straight milling flank includes a first straight milling flank and a second straight milling flank. 4 . 4. A double-sided side milling forming cutter according to claim 1, characterized in that: the chip removal groove is a spiral groove. 5 . The double-sided side milling forming cutter according to claim 1 , wherein the shapes of the front arc cutting edge and the rear arc cutting edge are both composed of multiple continuous arcs. 6 .