V-type blade milling insert and tool

Abstract

The utility model discloses a kind of V-shaped blade milling cutter and tool, it includes: V-shaped blade milling cutter includes positive mounting surface, bottom mounting surface and four side connecting surfaces, positive mounting surface and bottom mounting surface are oppositely arranged, four side connecting surfaces are sequentially connected and complete closure, positive mounting surface and bottom mounting surface are connected with the two sides of four side connecting surfaces respectively, the connecting place of each side connecting surface with positive mounting surface respectively, and the connecting place of bottom mounting surface are all formed with cutting edge, cutting edge is arranged in V type. Four cutting edges switch into eight cutting edges, and V-shaped structure can also split wide chip into smaller part, reduce cutting force fluctuation and chip removal resistance, change the direction and distribution of cutting force, reduce the radial force component causing tool bending vibration, avoid all blades to reach maximum cutting force peak value simultaneously, with similar uneven tooth pitch vibration damping effect, thereby more adapt to long overhang application scenario.

Claims

1. A V-shaped milling insert, characterized in that, The V-shaped end mill insert has a cuboid structure and includes a front mounting surface, a bottom mounting surface, and four side connecting surfaces. The front mounting surface and the bottom mounting surface are arranged opposite to each other, and the four side connecting surfaces are connected in sequence to complete the closure. The front mounting surface and the bottom mounting surface are respectively connected to the two sides of the four side connecting surfaces. Each side connecting surface has a cutting edge at the connection point with the front mounting surface and the connection point with the bottom mounting surface. The cutting edge is arranged in a V-shape.

2. The V-shaped milling cutter as described in claim 1, characterized in that, The cutting edge includes a first sub-cutting edge and a second sub-cutting edge, which are connected to each other and arranged in a V-shape. The top view projection of the first sub-cutting edge is at an angle of 120° ± 10° to the top view projection of the second sub-cutting edge.

3. The V-shaped milling insert as described in claim 2, characterized in that, The orthographic projection of the first sub-cutting edge forms an angle of 120° ± 10° with the orthographic projection of the second sub-cutting edge.

4. The V-shaped milling cutter as described in claim 2, characterized in that, The side connecting surface includes a first side connecting surface and a second side connecting surface that are connected to each other. The connection points of the first side connecting surface with the front mounting surface and the bottom mounting surface are the first sub-cutting edge, and the connection points of the second side connecting surface with the front mounting surface and the bottom mounting surface are the second sub-cutting edge. The first side connecting surface in one of the side connecting surfaces is connected to the second side connecting surface in another adjacent side connecting surface. The included angle between the two first side connecting surfaces in the two adjacent side connecting surfaces is 90°, and the included angle between the two second side connecting surfaces in the two adjacent side connecting surfaces is 90°.

5. The V-shaped milling cutter as described in claim 1, characterized in that, The front mounting surface is also provided with a connecting hole that extends through the front mounting surface to the bottom mounting surface.

6. The V-shaped milling cutter as described in claim 5, characterized in that, The connection hole is located at the center of the front mounting surface and the bottom mounting surface.

7. The V-shaped end mill insert as described in any one of claims 1-6, characterized in that, The connection point between each side connecting surface and the front mounting surface is a front cutting edge, and the connection point between each side connecting surface and the bottom mounting surface is a bottom cutting edge. The V-shaped protrusions of the front cutting edge and the bottom cutting edge are staggered.

8. The V-shaped end mill insert as described in any one of claims 1-6, characterized in that, The V-shaped milling cutters are distributed symmetrically about the center axis of the V-shaped milling cutter.

9. A cutting tool, characterized in that, The cutting tool includes a cutter head or a cutter bar, and a V-shaped milling insert as described in any one of claims 1-8, wherein the cutter bar or the cutter head is connected to the V-shaped milling insert.

10. The cutting tool as described in claim 9, characterized in that, The number of V-shaped milling cutters is multiple, and the multiple V-shaped milling cutters are arranged in a circular array with the cutter head or the cutter bar as the axis.

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